JP6082865B1 - Conveyor skirt equipment - Google Patents

Abstract

A skirt device for preventing spillage of raw material from a raw material receiving port of a conveyance side belt has conventionally sealed a hood and a conveyance side belt with a rubber plate. Due to the difference, insufficient strength of the skirt plate, and wear at the tip of the skirt plate, the transport side belt and the skirt plate cannot be sealed accurately, and falling ores were generated from both sides of the transport side belt. SOLUTION: A rectangular rod-shaped rubber elastic body is provided with a long hole, a bolt is passed through the long hole and arranged in the longitudinal direction of the skirt plate, and the rectangular rod-shaped rubber elastic body has a rectangular hole shape. The free end face of the rubber elastic body can be brought into precise contact with the surface of the conveyor belt. In addition, by attaching a tip made of a wear-resistant material to the free end of the rectangular rubber elastic body, the wear can be reduced, so that the life of the rectangular rubber elastic body is extended and the skirt plate is complicatedly adjusted. Is no longer needed. [Selection] Figure 1

Description

  The present invention relates to a conveyor skirt device provided with a skirt plate provided at a raw material receiving port of a belt conveyor for preventing the raw material from spilling in the width direction of the belt.

In the belt conveyor, a normal conveyed product is carried on a conveyance side belt, discharged on the drive pulley side, becomes a conveyance side belt, and returns to the driven pulley. A conveyor skirt device is provided at the material receiving port of the conveying belt to prevent a large amount of material falling due to gravity from spilling in the width direction of the belt. In order to fulfill this function, the conveyor skirt device is provided with a skirt plate to form a weir in the width direction of the belt to prevent the raw material from protruding from the belt. Usually, a skirt plate is often used which has a structure in which a rubber plate is attached to a metal plate and the rubber plate is pressed against a conveyor belt for sealing.

Since the conveyor belt is supported by the carrier roller at regular intervals, the level of the portion supported by the carrier roller is high, and the uninstructed portion between the carrier rollers is low, and the direction of travel is It has a wave shape. For this reason, it has been extremely difficult to seal the conveyor belt with a straight skirt plate.

In the publicity of JP 2012-91922 A, the mounting plate is extended in the conveying direction of the conveyor, a gap is formed between the belt and the conveying belt, and an inclined plate extending obliquely upward from the lower end of the mounting plate to the inside of the skirt portion is attached. A skirt device is shown. In this method, since a gap is formed between the attachment plate and the conveyance side belt, a large amount of ore falling has occurred from both sides of the belt.

JP-A-8-20419 discloses a conveyor skirt device in which a skirt body made of an elastic material such as rubber can be naturally lowered by its own weight on a substrate. The problems in this method are as follows. (1) Since the weight of the skirt body is large, the belt surface is strongly pressed, so that a groove-like deep wear portion is generated in the belt, and the belt is damaged from this portion. (2) The raw material entered into the groove-shaped worn part, and a large amount of falling ore was deposited under the return side belt. (3) Since the skirt body is a rubber plate that is long in the belt traveling direction, its rigidity is weak, and when it is pushed in the belt width direction by the load, it turns over and creates a gap between the skirt body and the belt. The raw material was spilled. In addition, since the skirt body is rubber, the skirt body is abraded rapidly due to friction with the belt, so that the gap with the belt becomes large and the raw material is spilled.

JP 2012-91922 PR JP-A-8-20419

The present invention solves the following problems in order to prevent spillage of raw material from the skirt plate. (1) A skirt plate is formed in accordance with the height difference in the traveling direction of the conveyance side belt, and the gap formed between the skirt plate and the belt is minimized. (2) By increasing the rigidity of the skirt plate and minimizing the bending of the skirt plate in the belt width direction even when the skirt plate is pushed outward by the swelling or frictional force of the load, Make sure there is no gap between the belt and the belt. (3) The wear of the skirt plate is prevented, the frequency of adjusting the gap between the skirt plate and the belt is reduced, and the gap can be optimally maintained over a long period. (4) Easy adjustment of the gap between the skirt plate and the belt.

In a conveyor skirt apparatus comprising a skirt plate provided at a raw material receptacle of a conveying side belt for preventing the raw material from spilling from the conveying side belt, as described in claim 1, The skirt plate is composed of a rectangular base material disposed in the traveling direction of the conveyance side belt and a plurality of quadrangular stick rubber elastic bodies arranged and fixed on the rectangular base material, and the quadrangular stick rubber elastic body Are attached so that the side surfaces of the adjacent rectangular bar-shaped rubber elastic bodies are in contact with each other, penetrate in the width direction of the conveyor-side belt, and extend long in the central axis direction of the rectangular bar-shaped rubber elastic bodies . elongated hole provided allowed through the fixing bolt to the long holes, and the square and the center axis of the rod-like rubber elastic member in the vertical direction, the mounted in a rectangular substrate, and the square rod-shaped rubber The sex body the elongated hole, has become possible height adjustment of the vertical direction, the free terminal edge of the square bar-like rubber elastic body in contact with the surface of the transport side belt, the square rod-shaped rubber elasticity The width W of the body in the conveyance-side belt width direction is larger than the thickness B in the conveyance direction of the conveyance-side belt, and is difficult to bend in the width direction of the conveyance-side belt. Is a conveyor skirt device characterized by being easily bent .

The second solving means is a conveyor skirt device characterized in that, as shown in claim 2, the rectangular bar-shaped rubber elastic body has a tip made of a wear-resistant material attached to the free end. .

The effects of the first solving means are as follows. (1) The conveying belt is supported by the carrier roller, and the belt level of the portion supported by the carrier roller is high, and the belt level between the carrier roller and the carrier roller is low. Due to this level difference, it has been difficult to process the conventional skirt plate so that there is no gap according to the height of the belt. Since the skirt plate of the present invention has a structure in which a plurality of rectangular rod-shaped rubber elastic bodies are suspended from the skirt plate, the rectangular rod-shaped rubber elastic bodies can be attached according to the height of the belt. It has become possible to minimize the gap between the rubber elastic body and the belt. (2) Since the rigidity of the skirt plate can be increased, there is no gap between the skirt plate and the belt even when the skirt plate is pushed by the load and tries to spread in the width direction of the conveyor belt. There is no spillage. (3) The gap between the skirt plate and the belt can be easily adjusted by the long holes provided in the rectangular rod-shaped rubber elastic body. Further, when the free end of the rectangular bar-shaped rubber elastic body is worn, the fixing bolt can be loosened to lower the square bar-shaped rubber elastic body, thereby re-adjusting the contact property with the belt.

The effects of the second solving means are as follows. (1) Since the wear-resistant tip is attached to the free end of the rectangular bar-shaped rubber elastic body, the contact property between the rectangular bar-shaped rubber elastic body and the belt can be properly maintained over a long period of time. . (2) Since the tip wears while conforming to the shape of the belt, the contact property between the tip and the belt gradually improves. (3) The wear of the skirt plate is prevented, the frequency of adjusting the gap between the skirt plate and the belt is reduced, and the gap can be optimally maintained over a long period of time.

The side view of a conveyor skirt apparatus. The top view of a conveyor skirt apparatus (AA cross section of FIG. 1). The cross-sectional view (BB cross section of FIG. 1) of a conveyor skirt apparatus. The front view of a rectangular stick-shaped rubber elastic body. The front view of the skirt board which attached the square stick-shaped rubber elastic body with a chip | tip. Partially enlarged view of a rectangular bar elastic body and conveyor belt

An embodiment of the present invention will be described based on claims 1 to 2 and FIGS.

The first solving means is a conveyor skirt device provided with a skirt plate 20 provided at a raw material receiving port of the conveying side belt 31 for preventing the raw material from spilling from the conveying side belt 31, as shown in claim 1. 10, the skirt plate 20 includes a rectangular base material 21 disposed in the advancing direction of the transport side belt 31, and a plurality of rectangular bar-shaped rubber elastic bodies 22 arranged and fixed to the rectangular base material 21. The quadrangular bar-shaped rubber elastic body 22 is attached so that side surfaces 22d of adjacent quadrangular bar-shaped rubber elastic bodies 22 are in contact with each other, penetrates in the width direction of the conveying side belt 31, and the quadrangular bar-shaped rubber elastic body 22 the central axis 25 direction of the rubber elastic body 22, the long hole 23 is provided with elongated, allowed through a fixing bolt 24 into the long hole 23, and the central axis of the square rod-shaped rubber elastic body 5 is attached to the rectangular base material 21 in the vertical direction, and the rectangular rod-shaped rubber elastic body 22 can be adjusted in height in the vertical direction by the elongated hole 23. The free-side end face 22a of the elastic body 22 is in contact with the surface of the transport-side belt 31, and the width W of the rectangular bar-shaped rubber elastic body 22 in the transport-side belt width direction is the traveling direction of the transport-side belt 31. The conveyor skirt device 10 is characterized in that it is thicker than the thickness B of the conveyor side belt 31 and is not easily bent in the width direction of the conveying side belt 31 and is easily bent in the traveling direction of the conveying side belt 31 .

FIG. 1 is a side view of the conveyor skirt device. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, and is a plan view of the conveyor skirt device. FIG. 3 is a cross-sectional view taken along line BB in FIG. 1 and is a cross-sectional view of the conveyor skirt device. As shown in FIGS. 1 to 3, the belt 30 is reversed from the return side belt 32 to the conveyance side belt 31 by the return side pulley 33 to load and convey the raw material. The material receiving port of the conveyance side belt 31 is provided with a chute 11 for supplying the material from above and a hood 12 for receiving the lowered material and loading it on the conveyance side belt 31. The raw material travels down the chute 11 and falls onto the conveying belt 31 and is loaded. Since the raw material has potential kinetic energy, the raw material tends to spread in the width direction and the traveling direction of the conveyance side belt 31, so that the hood 12 guides the flow side belt 31 so that it smoothly flows in the traveling direction. Further, the hood 12 has a function of preventing the raw material from spilling from the conveyance side belt 31 and suppressing dust generated at the receiving port. A rear cover 13 is provided on the rear surface of the hood 12 so that the raw material does not spill on the rear surface of the return pulley 33. Since a gap G is formed between the hood lower end 12a and the conveyance side belt 31, conventionally, a rubber plate is provided on the side surface 12b of the hood 12, and the rubber plate and the conveyance side belt are brought into contact with each other to prevent raw material spillage. It was.

Since a large amount of weight is added to the conveyance side belt 31 because the raw material is loaded, carrier rollers 34 are provided at appropriate intervals to support the conveyance side belt 31. Therefore, as shown in FIG. 6, a level difference H (P1−P2) is generated between the partial level P1 where the conveying belt 31 is supported by the carrier roller 34 and the intermediate roller level P2 between the carrier roller and the carrier roller. For this reason, the rubber plate is strongly pressed against the surface of the conveyance side belt so as not to form a gap, but groove-like wear occurs in the belt 30, the material is clogged in this portion, and the conveyance side belt 31 is returned to the return side. When it came back to belt 32, a large amount of falling ore was generated.

In order to eliminate the gap G, the skirt plate 20 is attached to the hood 12. The skirt plate 20 includes a rectangular base material 21 disposed in the traveling direction of the conveyance side belt 31 and a plurality of quadrangular stick rubber elastic bodies 22 attached to the rectangular base material. The rectangular base material 21 is fixed to the hood 12 by a method such as welding or bolts. A plurality of fixing bolts 24 are attached to the rectangular base material 21 in the traveling direction of the conveyance side belt 31. The fixing bolts 24 may be arranged in one row or in two rows as shown in FIGS. The rectangular rod-shaped rubber elastic body 22 is fixed by allowing the fixing bolt 24 to pass through a long hole 23 provided on the fixed side surface 22b of the rectangular rod-shaped rubber elastic body 22. The rectangular rod-shaped rubber elastic body 22 is attached to the rectangular base material 21 so that the central axis 25 is in the vertical direction. The elongated hole 23 provided in the direction of the central axis 25 of the quadrangular bar-shaped rubber elastic body 22 enables the height adjustment of the quadrangular bar-shaped rubber elastic body 22 with respect to the conveyance side belt, and the free side of the quadrangular bar-shaped rubber elastic body 22. The terminal end surface 22a can be brought into contact with the front surface 31a of the transport side belt 31 accurately. After the mounting height of the rectangular bar-shaped rubber elastic body 22 is set, the rectangular bar-shaped rubber elastic body 22 may be fixed to the rectangular base material 21 with the fixing bolt 24. In order to prevent the powdered raw material from spilling, the adjacent side surfaces 22d of the rectangular bar-shaped rubber elastic body 22 are preferably brought into contact with each other.

The rectangular rod-shaped rubber elastic body 22 needs a pressing force to press the free side end face 22a against the transport side belt 31. Moreover, the rigidity which suppresses the force which the raw material in the food | hood 12 provided in the raw material receiving port tends to spread in the width direction of the conveyance side belt 31 is required. Further, in order to prevent the skirt plate 20 from being damaged by projections such as endless turning of the conveyance side belt 31, flexibility is required to bend instantaneously in the traveling direction of the conveyance side belt 31 to avoid overload. Therefore, the rectangular bar-shaped rubber elastic body 22 uses rubber. As the rubber, for example, natural rubber, synthetic natural rubber, styrene, butadiene rubber, chloroprene rubber, acrylic rubber, nitrile rubber, urethane rubber, fluorine rubber, or the like can be used.

As shown in FIG. 4, the cross section of the rectangular bar-shaped rubber elastic body 22 is a square or a rectangle. In order to make the elastic body 22 made of a rectangular bar-shaped rubber easy to bend in the traveling direction of the conveying belt 31 and less likely to bend in the width direction of the conveying belt 31, the width W in the belt width direction is larger than the thickness B in the belt traveling direction. Is desirable. In the traveling direction of the conveyance belt 31, it is necessary to bend easily in order to avoid projections such as endless. In the width direction of the conveyance side belt 31, it is necessary to be difficult to bend to suppress the expansion force of the raw material in the belt width direction. The width W of the rectangular rod-shaped rubber elastic body 22 is preferably 10 to 50 mm. The thickness B is preferably about 5 mm smaller than W. If W is 10 mm or less, the rigidity is weakened and the strength of the raw material is lost. When W is larger than 50 mm, the rigidity is too large and the bending becomes small, and the small unevenness of the conveyance side belt 31 cannot be flexibly followed. The length L of the rectangular rod-shaped rubber elastic body 22 is preferably 50 to 300 mm.

A long hole 23 provided in the fixed side surface 22 b of the rectangular rod-shaped rubber elastic body 22 penetrates in the width direction of the transport side belt 31. One or two long holes 23 are provided. When the two long holes 23 are provided, the intermediate portion 22e is formed as shown in FIG. 4, so that a reinforcing effect as a rib can be provided. The diameter of the long hole 23 may be about 5 mm. The length of the long hole 23 in the central axis direction 25 is preferably 10 to 50 mm. One or two fixing bolts 24 are fixed.

As a second solution, as shown in claim 2, the rectangular elastic rubber body 22 has a conveyor skirt characterized in that a tip 40 made of a wear-resistant material is attached to the free end 22c. Device 10.

The material of the chip 40 can be ceramics, cemented carbide or cermet. As the ceramic, for example, alumina, silicon nitride, zirconia, silicon carbide, or the like can be used. As the cemented carbide, for example, a WC-Co alloy, a WC-TiC-Co alloy, a WC-TaC-TaC-Co alloy, or the like can be used. The cermet is mainly composed of TiC, TiN, or NbC, and a sintered product of a composite material with a metal such as Co, Ni, or Mo can be used.

FIG. 4B shows a cubic chip 41 attached to the free end face 22a of the square bar-shaped rubber elastic body 22 with screws 43 attached thereto. FIG. 5 is an overall view of the skirt plate 20 when the cubic chip 41 is attached to the free-side end face 22a of the rectangular bar-shaped rubber elastic body 22. A concave portion 41b is formed in the bottom surface 41a of the cubic chip 41 so that the screw 43 is not exposed from the free-side end face 22a of the square bar-shaped rubber elastic body 22. Further, the cubic chip 41 is prevented from protruding from the side surface 22d of the rectangular bar-shaped rubber elastic body 22. This is because, when the cubic chip 41 protrudes from the side surface 22d of the quadrangular bar-shaped rubber elastic body 22, a gap is formed between the adjacent quadrangular bar-shaped rubber elastic bodies 22, so that the raw material is spilled.

FIG. 4C shows the plate chip 42 attached to the free-side terminal recess 22 f of the rectangular bar-shaped rubber elastic body 22 by screws 44. The free-side terminal recess 22f of the rectangular bar-shaped rubber elastic body 22 is formed by cutting out the free-side terminal 22c of the rectangular bar-shaped rubber elastic body 22 in a step shape. The mounting screw 44 of the plate chip 42 is prevented from protruding from the side surface 22d of the rectangular bar-shaped rubber elastic body 22. This is because if the plate chip 42 protrudes from the side surface 22d of the quadrangular bar-shaped rubber elastic body 22, a gap is formed between the adjacent quadrangular bar-shaped rubber elastic bodies 22, so that the raw material is spilled.

By attaching the chips 41 and 42 to the free-side end 22c of the quadrangular stick-shaped rubber elastic body 22, the free-end end face 22a of the quadrangular stick-shaped rubber elastic body 22 is prevented from being worn by friction with the transport side belt 31. it can. Since the chip 40 is worn along the shape of the conveyance side belt 31, the chip 40 and the conveyance side belt 31 are adapted to each other with time, so that the sealing performance is improved. When wear of the tip 40 progresses and a gap is generated between the tip 40 and the conveying belt 31, the fixing bolt 24 is loosened, and the square rod-shaped rubber elastic body 22 is lowered in the vertical direction, so that the square rod-shaped rubber elastic body is 22 and the conveyance side belt 31 can be adjusted.

10: Conveyor skirt device 11: Chute 12: Hood 12a: Hood lower end 12b: Hood side surface 13: Rear cover 20: Skirt plate 21: Rectangular base material 22: Square bar-shaped rubber elastic body 22a: (Rectangle bar-shaped rubber elastic body ) Free-side terminal end surface 22b: Fixed-side side surface 22c (of the square rod-shaped rubber elastic body): Free-side end 22d (of the quadrangular rod-shaped rubber elastic body): Side surface 22e (adjacent to the quadrangular rod-shaped rubber elastic body): ( Intermediate portion 22f (of the rectangular rod-shaped rubber elastic body): Free side terminal recess 23 (of the rectangular rod-shaped rubber elastic body) 23: Slot 24: Fixing bolt 25: Center shaft 30: Belt 31: Conveying belt 31a: (Conveying) Front side 32): Return side belt 33: Return side pulley 34: Carrier roller 40: Tip 41: Cube tip 41a: Bottom surface 41b: Recess 42: Plate Chip 43: Screw 44: Screw G: Gap P1 (at the lower end of the hood and the surface of the conveyor belt) P1: Level of the conveyor belt on the carrier roller support P2: Level H of the conveyor belt between carrier rollers: (of the conveyor belt) ) Level difference (P1-P2)
L: Length (of a rectangular bar-shaped rubber elastic body)

Claims (2)

In the conveyor skirt device provided at the material receiving port of the conveyance side belt and provided with a skirt plate for preventing the material from spilling from the conveyance side belt, the skirt plate is disposed in the traveling direction of the conveyance side belt. A rectangular base material and a plurality of quadrangular rod-shaped rubber elastic bodies arranged in a row and fixed to the rectangular base material, and the quadrangular rod- shaped rubber elastic bodies are in contact with side surfaces of adjacent quadrangular rod-shaped rubber elastic bodies. A long hole extending in the width direction of the conveyor belt and extending in the central axis direction of the rectangular bar-shaped rubber elastic body is provided, and a fixing bolt is passed through the long hole. and, with the central axis of the square rod-shaped rubber elastic body in the vertical direction, the mounted in a rectangular substrate, and the square rod-shaped rubber elastic body by the elongated hole, vertical height adjustment Has become available, the quadrangle free terminal end face of the rod-shaped rubber elastic body in contact with the surface of the transport side belt, the width W of the conveyor side belt width direction of the square bar-like rubber elastic body, the transfer A conveyor skirt device characterized in that it is larger than the thickness B in the traveling direction of the side belt, is not easily bent in the width direction of the conveying side belt, and is easily bent in the traveling direction of the conveying side belt . The conveyor skirt device according to claim 1, wherein the rectangular bar-shaped rubber elastic body has a tip made of a wear-resistant material attached to the free end.