JP6997753B2 - belt conveyor - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act 1) Published by exhibition [Exhibition date] October 4, 1st year of Reiwa [Exhibition name, venue] Belt conveyor new product briefing session for police officers, Keibun Co., Ltd. Company Mfg. Co., Ltd. (739-6, Yamate, Yoshida-cho, Akita-shi, Hiroshima) [Publisher] Keibunsha Mfg. Co., Ltd. [Exhibition details] Belt conveyor equipped with sediment intrusion prevention means described in Japanese Patent Application No. 2019-236995 2) Sale , Published by distribution [Sales date or distribution date] Reiwa October 9, 1 as shipping date [Sales location or distribution location] As shipping destinations, Hokkaido Police Headquarters, Miyagi Prefectural Police Headquarters, Aomori Prefectural Police Headquarters, Akita Prefectural Police Headquarters, Yamagata Prefectural Police Headquarters, Fukushima Prefectural Police Headquarters [Publisher] Keibunsha Seisakusho Co., Ltd. [Details of items sold or distributed] Belt conveyor equipped with sediment intrusion prevention means described in Japanese Patent Application No. 2019-236995 as shipment. 3) Published by sale and distribution [Sales date or distribution date] Reiwa October 10, 1st shipping date [Sales location or distribution location] As shipping destinations, Chiba Police Headquarters, Iwate Prefectural Police Headquarters, Tochigi Prefectural Police Headquarters, Niigata Prefectural Police Headquarters, Toyama Prefectural Police Headquarters, Iwate Prefectural Police Headquarters [Publisher] Keibunsha Seisakusho Co., Ltd. 4) Published by sale and distribution [Sales date or distribution date] Reiwa October 11, 1st [Sales location or distribution location] As shipping destinations, Okinawa Prefectural Police Headquarters, Fukui Prefectural Police Headquarters, Gunma Prefectural Police Headquarters, Shizuoka Prefectural Police Headquarters, Yamanashi Prefectural Police Headquarters, Nagano Prefectural Police Headquarters [Publisher] Keibunsha Seisakusho Co., Ltd. Belt conveyor equipped with preventive measures 5) Published by sale and distribution [Sales date or distribution date] Reiwa October 15, 1 year as shipping date [Sales location or distribution location] Metropolitan Police Department as shipping destination [Publisher] Keibun Co., Ltd. Company Mfg. Co., Ltd. [Contents of the product sold or distributed] As a shipment, a belt conveyor equipped with the earth and sand intrusion prevention means described in Japanese Patent Application No. 2019-236995, etc. Facts of 6) -10) described in the document submission

The present invention relates to a belt conveyor that is suitable for transporting earth and sand when a plurality of units are continuously installed and diagonally installed, and which can be easily carried by a person even at a place where a sediment disaster occurs.

In Patent Document 1, which targets earth and sand transportation, the return belt is bent upward by standing at both ends of the conveyor belt between the return rollers of the belt conveyor and pressing the side ends of the return belt inward. A belt conveyor with at least a pair of vertical rollers to hold in a state is disclosed.

Patent Document 2 is used in a mechanism for dropping excavation scraps from an upper belt conveyor to a lower belt conveyor and transporting them, and is provided below the upper conveyor belt conveyor and below a scraper that scrapes off mud adhering to the conveyor belt. The upper end opening having an area surrounding the scraper faces the upper end, the lower end opening faces the lower end opening above the lower belt conveyor, and the mud receiving chute for the belt conveyor provided with a vibrator to which vibration is applied. Is disclosed.

In Patent Document 3, in a belt conveyor that conveys earth and sand placed on the upper surface of a belt by moving the belt, a friction wheel that comes into contact with the belt and rotates by the movement of the belt, and above the upper surface of the belt. The earth and sand scraping impeller is provided with an arranged earth and sand scraping impeller and a power transmission mechanism for transmitting the rotation of the friction wheel to the earth and sand scraping impeller. A rotating shaft extending 90 degrees with the moving direction of the belt, and a blade having a width extending radially in the width direction of the belt and having a plurality of radial attachments to the rotating shaft and their lower edges facing the upper surface of the conveyor belt. A belt conveyor for transporting earth and sand composed of a body is disclosed.

Patent Document 4 describes an endless belt on which sludge that generates corrosive gas is placed, a sprinkler for cleaning the sludge adhering to the belt, a pulley that rotates in frictional contact with the belt, and the rotating pulley. The bearing cover includes a bearing that supports the shaft of the pulley and a bearing cover that covers the bearing. The bearing cover has a gas inlet, and the gas introduced from the gas inlet has a positive pressure inside the bearing cover. The sludge transfer conveyor to be kept in is disclosed.

Japanese Patent Application Laid-Open No. 2002-53215 Japanese Unexamined Patent Publication No. 2000-318816 Japanese Unexamined Patent Publication No. 8-301427 Utility Model Registration No. 3164091

The invention of Patent Document 1 is a countermeasure against mud and soil fall from the return belt, but there is a problem that if earth and sand are caught between the driven roller and the belt, it stops abnormally due to an overload. If earth and sand were caught between the driven roller and the belt, it was troublesome to remove the earth and sand by manually turning the driven roller and sometimes adding running water. Further, since a structure for bending the central portion of the transport belt on the return side into a convex shape is added, the length in the vertical direction increases and becomes large, which causes a problem that it is difficult for a person to carry it.

The invention of Patent Document 2 is a technique of scraping off excavation scraps adhering to the downwardly changed belt surface with a scraper and removing them with a vibrator when the belt is rotated by a drive roller and comes from the upper stage to the lower stage. There was a problem that if earth and sand were caught between the belt and the belt, it would stop abnormally due to overload. If earth and sand were caught between the driven roller and the belt, it was troublesome to remove the earth and sand by manually turning the driven roller and sometimes adding running water. Further, since the belt conveyor has at least two stages, the height in the vertical direction is high, so that there is a problem that it is difficult for a person to carry it.

The invention of Patent Document 3 is a measure to prevent the earth and sand placed on the belt from flowing to the lower side by the earth and sand scraping impeller when the belt conveyor is slanted, but the earth and sand are between the driven roller and the belt. There was a problem that if it was pinched, it would stop abnormally due to overload. If earth and sand were caught between the driven roller and the belt, it was troublesome to remove the earth and sand by manually turning the driven roller and sometimes adding running water. In addition, there is a problem that it is difficult for a person to carry it because it is heavy in weight because it is equipped with an impeller for scraping up earth and sand.

The invention of Patent Document 4 is to prevent corrosion of the bearing portion of the pulley, but there is a problem that if earth and sand are caught between the driven roller and the belt, it stops abnormally due to an overload. If earth and sand were caught between the driven roller and the belt, it was troublesome to remove the earth and sand by manually turning the driven roller and sometimes adding running water.

The present invention has been devised in view of these problems, and provides a belt conveyor that prevents the conveyor belt from being biased in the left-right direction, prevents sediment from entering between the driven roller and the conveyor belt, and is easy for humans to carry. Is the subject.

The belt conveyor according to claim 1 is a belt conveyor that transports earth and sand placed on a transport belt upward by arranging the driven roller side low and the drive roller side high and slanted, and is omitted in plan view. The rectangular conveyor frame body and one end side are fixed to the outer wall surface near the end portion in the longitudinal direction of the conveyor frame body, the other end side is projected in the longitudinal direction, and the driven or the end portion on the other end side is used. It is provided with left and right side plate portions into which the rotary bearings of the drive roller are fitted, and the lateral direction is predetermined so that earth and sand do not enter from the inner wall surface of the side plate portion from the end portion of the conveyor belt in the lateral direction. Covers the surface of the conveyor belt up to the position in the lateral direction, and covers the vertical gap between the side plate and the conveyor frame from the tip of the conveyor belt on the driven roller side in the longitudinal direction. It is characterized by providing a sediment intrusion prevention means that covers up to a predetermined position in the longitudinal direction.

The belt conveyor according to claim 2 has a substantially drum shape in which the outer shape of the driven roller is larger than the diameter of the end portion in the outer shape of the driven roller, and the driven belt on the lower stage side is said to be driven. Conveyor belt shorts that are projected from the side plates on both sides to the conveyor belt side so that they come into contact with the belt edge in the lateral direction when the lateral displacement of the conveyor becomes large at the position in front of the roller. It is characterized by being equipped with a means for regulating the direction and position.

The belt conveyor according to claim 3 is the upper surface of the lower conveyor belt in claim 1 or 2, at a portion closer to the drive roller than the conveyor belt lateral position regulating means of the lower conveyor belt. A V-shaped brush body having a sharp angle in the direction of the drive roller is projected from the side plates on both sides in a plan view or a bottom view in contact with the lower surface.

In any one of claims 1 to 3, the belt conveyor according to claim 4 has an arcuate downward convex shape in which the lower end edge of the side plate portion of the drive roller and the lower end edge of the side plate portion of the driven roller are formed into an arc shape. At the upper end of the side plate portion of the drive roller, two arcuate grooves are formed in the longitudinal direction to form concave portions in the upward direction, and each of the two concave grooves is a circle at the lower end edge of the side plate portion of the drive roller. The arc-shaped portion and the arc-shaped portion at the lower end edge of the side plate portion of the driven roller can be fitted, and the belt conveyors can be stacked.

The belt conveyor according to claim 1 is placed on a conveyor belt and ascended when the earth and sand are dropped and transferred between the continuous belt conveyors, or when the inclination angle of the oblique belt conveyor is, for example, 30 °. When the earth and sand inside falls, it is possible to prevent the earth and sand from entering between the driven roller and the conveyor belt. As a result, the earth and sand will not be caught between the driven roller and the driven roller and will not stop abnormally due to overload, and the operating rate will be improved. rice field. In addition, the transport belt no longer shifts due to the entry of earth and sand between the driven roller and the transport belt.

The belt conveyor according to claim 2 can prevent the conveyor belt from being biased in the vicinity of the driven roller, and can make the positional relationship between the upper conveyor belt and the sediment intrusion prevention means constant in the lateral direction. , Sediment intrusion prevention means can be effectively functioned.

The belt conveyor according to claim 3 can remove earth and sand adhering to the upper surface and the lower surface of the conveyor belt at a position before the conveyor belt reaches the driven roller, and can be applied to the upper surface of the lower conveyor belt. It is possible to prevent the adhering earth and sand from directly entering between the driven roller and the conveyor belt, and to prevent the earth and sand adhering to the lower surface of the lower conveyor belt from adhering to and accumulating on the surface of the conveyor belt 4. It plays the effect.

In the belt conveyor according to claim 4, since the belt conveyors can be stacked and stacked, the space for moving the belt conveyors can be narrowed, the belt conveyors can be easily transported by truck, and the belt conveyors can be stored in a small space. be able to.

Further, if a convex and arcuate edge is formed with a mountain-shaped uneven shape below the lower end edge of the side plate portion of the drive roller and the shaft of the transport caster is fitted into the concave portion, the vicinity of the driven roller can be moved to a person. The belt conveyor can be easily moved by one person by lifting it.

It is explanatory drawing of the left side of the belt conveyor of this invention. It is a perspective view of A1 arrow view in FIG. It is a front explanatory view of A2 arrow view in FIG. It is a plane explanatory view of the arrow B view in FIG. FIG. 6 is an explanatory view of the left side surface in the vicinity of the sediment intrusion prevention means when the L side plate portion in FIG. 4 is made transparent. FIG. 3 is an explanatory cross-sectional view taken along the line CC in the vicinity of the sediment intrusion prevention means in FIG. It is a side explanatory view of D arrow view in FIG. In the explanatory view of the sediment intrusion prevention means, (a) is a development explanatory view of the R side plate portion in a plan view, (b) is an explanatory view of the FF cross section of (a), and (c) is the left side of (a). In the explanatory view of the plan view, (d) is a development explanatory view of the plan view of the L side plate portion. An explanatory view of the transport belt lateral position regulating means, (a) is a front view, and (b) is a right side view. It is explanatory drawing of the plane view of the conveyor frame body. FIG. 10 is a cross-sectional view taken along the line GG in FIG. 10, which is an explanatory cross-sectional view in the left-right direction of a portion provided with a beam in the lateral direction. FIG. 10 is a cross-sectional view taken along the line H-H in FIG. FIG. 10 is a cross-sectional view taken along the line JJ in FIG. 10, which is an explanatory cross-sectional view in the left-right direction in front of the end on the passive pulley side of the conveyor frame body. It is explanatory drawing of the form in which two belt conveyors of this invention are arranged in series. It is explanatory drawing of the form in which four belt conveyors of this invention are stacked. It is explanatory drawing of the figure that one person moves the belt conveyor of this invention. It is a front view explanatory view of the caster for transportation. FIG. 4 is a cross-sectional view taken along the line KK in the conventional case where no sediment intrusion prevention means is provided. FIG. 4A is an explanatory diagram when there is no sediment, and FIG. It is explanatory drawing of. 4A is a cross-sectional view taken along the line KK in FIG. 4, which is an explanatory cross-sectional view in the case of the present invention provided with earth and sand intrusion prevention means. It is explanatory drawing of time. FIG. 4 is an NN cross section in FIG. 4, which is a cross-sectional explanatory view when the earth and sand intrusion prevention means of the present invention is provided, and is an explanatory view when earth and sand are loaded. It is a view from the arrow A2 in FIG. 1, and is an explanatory diagram of a conventional driven roller portion when no sediment intrusion prevention means is provided, (a) is an explanatory diagram when there is no sediment, and (b) is an explanatory diagram of sediment. It is explanatory drawing at the time of loading. It is a view from the arrow A2 in FIG. 1, and is an explanatory view when the earth and sand are loaded on the driven roller portion in the case where the earth and sand intrusion prevention means of FIG. 3 is provided.

The belt conveyor 1 of the present invention is suitable for transporting earth and sand at a place where a sediment disaster occurs (including a place damaged by a sediment disaster), and is suitable for using a plurality of conveyors in a row while slanting each one. It can be transported from to the place where a sediment-related disaster occurs, for example, by stacking four layers, and because it is small and lightweight, it can be carried by a person. When the earth and sand are dropped from the previous slanted belt conveyor 1 to the next slanted belt conveyor 1, when the earth and sand on the transfer belt 4 collapses, or when the earth and sand transfer belt Since it is possible to prevent the earth and sand from entering between the driven roller 2 and the conveyor belt 4 when loading onto the earth, it is possible to continuously use the earth and sand for a long time at the place where the earth and sand disaster occurs.

The belt conveyor 1 of the present invention is a belt conveyor 1 in which the driven roller 2 side is low and the drive roller 3 side is arranged high and slanted, and the earth and sand placed on the transfer belt 4 are conveyed upward. The substantially rectangular conveyor frame body 5 and one end side are fixed to the outer wall surface near the end portion in the longitudinal direction of the conveyor frame body 5, and the other end side is projected in the longitudinal direction, and the end portion on the other end side is projected. The left and right side plate portions 6a and 6b into which the rotary bearings of the driven roller 2 or the driving roller 3 are fitted are provided.

The belt conveyor 1 has a total length of 2 to 4 m and has a structure that allows stacking so that it can be transferred by truck. Further, in the belt conveyor 1, a motor (not shown) provided with waterproof measures is arranged below the lower conveyor belt 4 on the drive roller 3 side, and the rotation of the motor is driven by a gear fixed to the motor shaft. A gear fixed to the shaft of the roller 3 is connected by a chain (not shown). Further, the generator (not shown) and the power plug (not shown) connected to the motor are connected by a power cable, and the power plug and the power outlet provided on the side plate portion 6a on the driven roller 2 side (not shown). ) With a wiring cord, and connect with a power plug on the drive roller 3 side of the other belt conveyor 1 to which the power outlet is connected with a power cable.

When the start switch of the motor of the belt conveyor 1 is turned on, the rotation of the motor rotates the drive roller 3 via the chain, and the rotation of the drive roller 3 rotates the conveyor belt 4 due to friction, and the conveyor belt Due to the rotation of 4, the driven roller 2 fixed to the rotating shaft 2a fitted to the side plate portion 6a rotates due to friction.

As shown in FIG. 14, if one belt conveyor 1 is connected to one generator, a plurality of belt conveyors 1 can be operated by one generator. It should be noted that the plurality of belt conveyors can be connected in series as shown in FIG. 14, or can be connected so as to change the direction in the right angle direction.

When the plurality of belt conveyors 1 are connected, for example, as shown in FIG. 14, the earth and sand are first conveyed while rising in the diagonally upward direction a of the belt conveyor 1, and are conveyed to the drive roller 3 side. When the tip of the earth and sand reaches the position of the tip, the earth and sand fall around the driven roller 2 of the next belt conveyor 1 in the direction of the falling direction (b), and the earth and sand are conveyed while rising in the diagonally upward direction (c) of the belt conveyor 1. If the earth and sand intrusion prevention means is not provided, the earth and sand that has fallen when the earth and sand fall in the direction of the fall direction (b) is conveyed to the driven roller 2 as shown in FIGS. 21 (b) and 18 (b). There is a problem that the belts 4 get in between the belts 4 and an overload occurs, or the transport belt 4 is offset.

When the belt conveyor 1 is slanted, the transport belt 4 is loaded with earth and sand as shown in FIG. 2, and the earth and sand anti-slip 21 is arranged at predetermined intervals so that the ascending earth and sand do not roll off. There is. In all the drawings including FIG. 2, R indicates the right side and L indicates the left side.

As shown in FIGS. 10 to 13, the conveyor frame body 5 has a substantially rectangular shape in a plan view, and abuts on the back surface side of the upper conveyor belt 4 to carry the weight of earth and sand loaded on the surface of the conveyor belt 4 and conveyed. support. Long side frames 51 are fixed on both sides in the lateral direction in order to have strength to withstand the weight, and a longitudinal beam structure (not shown) is provided between the side frames 51. A long diagonal frame body 52 is fixed to the upper surface of the side frame 51 on the left and right so that the transport belt 4 is low in the central portion and high on both the left and right sides. The end portion 52a of the diagonal frame body 52 in the longitudinal direction has a lid having a slope in order to bring the state of the transport belt 4 closer to the outer peripheral surface shape of the driven roller 2 and the drive roller 3, and the diagonal frame body 52 has a lid. There is no earth and sand inside.

Further, in order to reduce the weight, the material of the conveyor frame body 5 is preferably aluminum. Since the conveyor frame body 5 serves as a wall between the upper conveyor belt 4 and the lower conveyor belt 4, the earth and sand loaded on the upper conveyor belt 4 and moving do not fall on the lower conveyor belt 4. ..

The side frame 51 has a cross-sectional shape having a high cross-sectional coefficient in order to secure bending strength, and has a tubular body such as a square frame shape or a cylindrical shape as shown in FIGS. 11 to 13. Further, as shown in FIG. 11, a short direction beam 53 for connecting the left and right side frames 51 is arranged at the lower end of the side frame 51 with a predetermined interval. As shown in FIG. 12, the portion where the lateral beam 53 is not arranged is a space between the left and right side frames 51.

As shown in FIGS. 10 or 13, the side plate portions 6a and 6b have one end side in contact with both ends of the conveyor frame body 5 in the lateral direction, that is, in contact with the outer wall surface of the side frame 51, and the conveyor frame. It is fixed to both ends of the body 5 in the longitudinal direction, that is, in the vicinity of the ends in the longitudinal direction of the side frame 51 by fastening means such as bolts. The other ends of the side plate portions 6a and 6b are projected in the longitudinal direction, and the side plate portions 6a and 6b have a plate-like shape in a side view as shown in FIGS. 5, 6 and 13. Is. Then, a rotary bearing such as a rotary shaft 2a of the driven roller 2 or the drive roller 3 is fitted at the other end of the projected portion.

As shown in FIG. 14, earth and sand are dropped and placed in the vicinity of the driven roller 2 of the upper transport belt 4, and are transported while rising toward the drive roller 3 side. At this time, when the earth and sand are dropped from the slanted belt conveyor 1 in front of the case where a plurality of belt conveyors 1 are connected to the next slanted belt conveyor 1, due to the collapse of the earth and sand placed on the transport belt 4. When a drop occurs or when loading onto the conveyor belt 4 on the earth and sand, the earth and sand get into between the driven roller 2 and the conveyor belt 4 and cause an overload and stop operation, or the conveyor belt 4 There was a problem that the belt slipped sideways. Therefore, the inventor came up with the earth and sand intrusion prevention means 7.

As shown in FIGS. 2 to 6 and 13, in the sediment intrusion prevention means 7, sediment invades from the inner wall surface of the side plate portion 6a and from the end of the conveyor belt 4 in the lateral direction. It covers up to the position in the lateral direction of the surface of the conveyor belt 4 so as not to be prevented, and in the longitudinal direction, from the tip portion of the conveyor belt 4 on the driven roller 6a side, the side plate portion 6a and the conveyor frame. It covers up to a predetermined longitudinal position that can cover the vertical gap S with the body 5. The gap S corresponds to a gap between the inner wall surface of the mounting bracket 16 of the side plate portion 6a in the lateral direction and the end portion of the transport belt 4 in a plan view, and covers the mounting bracket 16 and the covering of the side plate portion 6a in the vertical direction. It corresponds to the gap between the lower surface of the body 15 and the upper surface of the flange portion which is the contact surface of the diagonal frame body 52 with the side frame body 51.

The sediment intrusion prevention means 7 shows a plan view explanatory view of the sediment intrusion prevention means 7 on the right side in FIG. 8A, and a plan view expansion explanatory view of the sediment intrusion prevention means 7 on the left side is shown in FIG. It is shown in (e). As shown in FIG. 8C or FIG. 8D, the earth and sand intrusion prevention means 7 is fixed to the side plate body 6a by a mounting bracket 16 by using bolts or the like.

Then, as shown in FIG. 8B, the FF cross-sectional view in FIG. 8A is provided with a plate-shaped rubber plate covering body 15 and a mounting bracket 16, and the mounting bracket 16 is bent at an acute angle. The rubber plate is pressed against the surface of the transport belt 4. As a result, the earth and sand placed on the transport belt 4 do not penetrate from the end portion of the transport belt 4 in the lateral direction. The acute angle is set to an angle that can be along the slope of the transport belt 4 as shown in FIG.

Further, as shown in FIG. 13, since there is a gap S in the left-right direction between the side plate portion 6a and the diagonal frame body 52, in order to prevent earth and sand from entering the driven roller 2 side from this gap S, FIG. As shown in d), it is bent at the notch portion 17, and as shown in the fastening portion T in FIG. 5, the drive roller 3 side of the side plate portion 6a is placed on the upper surface of the diagonal frame body 52 in contact with the side frame 51. Abut and fix with bolts.

As a result, earth and sand may enter between the driven roller 2 and the conveyor belt 4, the earth and sand intrude from the end of the conveyor belt 4 in the lateral direction, and the tip of the conveyor belt 4 on the driven roller 2 side. It is possible to prevent the intrusion of earth and sand from the side plate portion 6a, the intrusion of earth and sand from the gap S between the side plate portion 6a and the conveyor frame body 5, and the intrusion of earth and sand from between the side plate portion 6a and the conveyor 4.

The material of the covering body 15 is, for example, a rubber plate, a resin plate, a fiber plate, or the like, but any material has elasticity that allows bending and deformation and has rigidity of a force that presses the surface of the transport belt 4. good.

Next, as shown in FIG. 14, when a plurality of belt conveyors 1 are connected in a row, sediment intrusion prevention is performed around the driven roller when the earth and sand 90 falls from the previous belt conveyor 1 toward the next belt conveyor 1. The effect of the presence or absence of the means 7 will be described. The A2 arrow view in FIG. 1, the KK cross section in FIG. 4, and the NN cross section are compared.

First, a comparison is made with the A2 arrow in FIG. The present form of the earth and sand intrusion prevention means 7 is shown in FIG. 3, the falling state of the earth and sand in this case is shown in FIG. 22, and the form without the earth and sand intrusion prevention means 7 is shown in FIG. The falling state of is shown in FIG. 21 (b).

In the case where the earth and sand intrusion prevention means 7 is not provided, as shown in FIG. 21B, the earth and sand 90 has fallen on the surface of the driven roller 2 and the earth and sand 90 enters between the transport belt 4 and the driven roller 2. On the other hand, in the case of the form provided with the sediment intrusion prevention means 7 of the present invention, the sediment 90 does not fall on the driven roller 2 as shown in FIG. 22.

Next, a comparison is made in the KK cross section in FIG. The present form of the earth and sand intrusion prevention means 7 is shown in FIG. 19 (a), the falling state of the earth and sand in this case is shown in FIG. It is shown, and the falling state of the earth and sand in this case is shown in FIG. 18 (b).

In the case where the earth and sand intrusion prevention means 7 is not provided, as shown in FIG. 18B, the earth and sand 90 has fallen into the gap S between the side plate portion 6a and the diagonal frame body 52, and the driven roller 2 Since it is used in a slanted state with a low position, the earth and sand 90 gradually slides down due to vibration caused by the rotational operation of the transport belt 4, and the earth and sand 90 falls on the surface of the driven roller 2 as shown in FIG. 21 (b). .. Then, the earth and sand 90 enters between the transport belt 4 and the driven roller 2. On the other hand, in the case of the form provided with the sediment intrusion prevention means 7 of the present invention, the sediment 90 does not fall into the gap S between the side plate portion 6a and the diagonal frame body 52 as shown in FIG. 19B.

Next, a comparison is made in the NN cross section in FIG. As shown in FIGS. 8A and 8D, a notch 17 is formed in the sediment intrusion prevention means 7, and the bent end portion is fastened to the contact portion of the diagonal frame body 52 with the side frame body 51 by bolts or the like. The effect when attached by means will be described. FIG. 20 shows the presence of the sediment intrusion prevention means 7 and the state of the sediment 90, FIG. 18 (a) shows the form of the sediment intrusion prevention means 7 without, and FIG. 18 (b) shows the state of the sediment falling in this case. ).

The position of the NN cross section is a position closer to the drive roller 3 side in the longitudinal direction from the position where the sediment intrusion prevention means 7 is fixed, but as shown in FIG. 18B, the sediment 90 is a side plate portion. It has fallen into the gap S between 6a and the diagonal frame body 52. Then, in the case of no form of the sediment intrusion prevention means 7, since the driven roller 2 is used in a lowered and slanted state, the sediment 90 gradually slides down due to vibration due to the rotational operation of the transport belt 4, and the sediment 90 is shown in the figure. As shown in 21 (b), it falls on the surface of the driven roller 2. On the other hand, as shown in FIGS. 5 and 20, in the case of the form provided with the sediment intrusion prevention means 7 of the present invention, even if the sediment 90 gradually slides down in the gap S, it is blocked by the sediment intrusion prevention means 7. be able to.

Next, as shown in FIG. 3, the driven roller 2 or the driving roller 3 has a substantially drum shape in which the diameter of the central portion is larger than the diameter of the end portion, whereby the transport belt 4 is less likely to shift laterally. ing. Then, as shown in FIGS. 5 to 7, the position regulating means 8 of the transport belt 4 in the lateral direction as shown in FIGS. 9A and 9B is driven by the transport belt 4 on the lower stage side. From the side plate portions 6a on both sides to the transport belt 4 side so as to abut on the end edge of the transport belt 4 in the lateral direction when the lateral displacement of the transport belt 4 becomes large at a position in front of the roller 2. Each is projected.

Next, the brush bodies 9a and 9b having a V-shaped shape in a plan view or a bottom view are as shown in FIGS. 5 to 7.
The above-mentioned in a plan view or a bottom view in which the upper surface and the lower surface of the lower transfer belt 4 are brought into contact with the portion closer to the drive roller 3 from the transfer belt lateral position regulating means 8 of the lower transfer belt 4. V-shaped brush bodies 9a and 9b having acute angles in the three directions of the drive rollers are projected from the side plates on both sides. The brush body 9a abuts on the upper surface of the lower transfer belt 4, the brush body 9b abuts on the lower surface of the lower transfer belt 4, and the lower transfer belt is sandwiched between the brush body 9a and the brush body 9b. I'm out.

Since the brush body 9a removes the earth and sand adhering to the back surface of the transport belt 4 moving from the lower stage to the upper stage, the earth and sand do not enter between the driven roller 2 and the transport belt 4. Further, since the brush body 9b removes the earth and sand adhering to the surface of the transport belt 4 moving from the lower stage to the upper stage, it is possible to prevent the earth and sand from sticking to and accumulating on the surface of the transport belt 4.

Next, as shown in FIGS. 2 to 4 and 7, a plurality of horizontal bars 13 are provided in the vicinity of the arc-shaped lower ends of the left and right side plate portions 6a, and earth and sand adhere to the driven roller 2 and the transport belt 4. I try not to.

Next, as shown in FIGS. 1, 5, and 15, the shape of the lower end edge of the side plate portion 6b of the drive roller 3 and the lower end edge of the side plate portion 6a of the driven roller 2 are made into an arc-shaped downward convex shape. , The upper end of the side plate portion 6b of the drive roller 3 is formed with two arcuate grooves arranged in the longitudinal direction to form concave portions 12 in the upward direction, and the side plates of the drive roller 3 are formed in the grooves of the two recesses 12, respectively. The arcuate portion of the lower end edge of the portion 6b and the arcuate portion of the lower end edge of the side plate portion 6a of the driven roller 2 can be fitted, and the belt conveyor 1 can be stacked.

Next, as shown in FIG. 16, the shaft 32 of the transport caster 30 provided with the left and right wheels 31 and the shaft 32 as shown in FIG. 17 is a drive roller 3 which is heavier in weight than the driven roller 2 side. The belt conveyor 1 can be moved by one person 80 by fitting it into the concave portion of the uneven portion of the lower end edge of the side plate portion 6b on the side.

1 Belt conveyor 2 Driven roller 2a Rotating shaft 3 Drive roller 4 Conveyor belt 5 Conveyor frame body 6a Side plate part 6b Side plate part 7 Sediment intrusion prevention means 8 Position control means 9a Brush body 9b Brush body 11 Arc-shaped part 12 Recessed portion 13 Horizontal bar 15 Cover 16 Mounting bracket 17 Notch 21 Sediment non-slip 30 Transport caster 31 Wheel 32 Shaft 51 Side frame 52 Diagonal frame 52a End 53 Short direction beam 54 Main frame plate 54a End 80 People 90 Sediment S Gap T Fastening Site

Claims (4)

It is a belt conveyor that transports the earth and sand placed on the transport belt upward by arranging the driven roller side low and the drive roller side high.
A conveyor frame body having a substantially rectangular shape in a plan view, one end side is fixed to an outer wall surface near the end portion in the longitudinal direction of the conveyor frame body, and the other end side is projected in the longitudinal direction, and the end portion on the other end side. The left and right side plates into which the driven or rotary bearings of the driving rollers are fitted are provided.
The lateral direction covers from the inner wall surface of the side plate portion to the position in the lateral direction of the conveyor belt surface predetermined so that earth and sand do not enter from the end portion of the conveyor belt in the lateral direction, and is long. The direction is a sediment intrusion prevention means that covers from the tip end portion of the conveyor belt on the driven roller side to a predetermined longitudinal position capable of covering the vertical gap between the side plate portion and the conveyor frame body. A belt conveyor characterized by being equipped. The outer shape of the driven roller is substantially drum-shaped so that the diameter of the central portion is larger than the diameter of the end portion, and the lateral displacement of the conveyor belt becomes large at a position in front of the driven roller of the conveyor belt on the lower stage side. 1 Belt conveyor described in. In the direction of the drive roller in a plan view or a bottom view in which the upper surface and the lower surface of the lower transfer belt are brought into contact with the portion closer to the drive roller from the transfer belt lateral position regulating means of the lower transfer belt. The belt conveyor according to claim 1 or 2, wherein a V-shaped brush body having a sharp angle is projected from the side plate portions on both sides. The shape of the lower end edge of the side plate portion of the drive roller and the lower end edge of the side plate portion of the driven roller are formed into an arcuate downward convex shape, and two are arranged in the longitudinal direction on the upper end portion of the side plate portion of the drive roller in the upward direction. An arcuate groove to be a concave portion is formed in the recessed groove, and an arcuate portion of the lower end edge of the side plate portion of the drive roller and an arcuate portion of the lower end edge of the side plate portion of the driven roller can be fitted into the two concave groove portions, respectively. The belt conveyor according to any one of claims 1 to 3, wherein the belt conveyors can be stacked.

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