JP2017071453A - Belt cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve problems in the conventional structure of an attachment part in a belt cleaner, in which it is difficult to bring the chip attached to the tip of a scraping plate or a square bar-shaped rubber elastomer into precise contact with a belt surface, and also it is impossible to adjust the contact state of the chip and the surface of a return side belt while observing a scraping condition during a belt conveyor running.SOLUTION: A belt cleaner is made by: fixing thea support pipe of the belt cleaner by tucking down into a pipe clamp which comprises a U bolt welded inside a ditch type substrate and a pipe pressing plate fitted to the U bolt; placing the pipe clamp on a pipe clamp table formed into a groove shape; installing a bolt for controlling the height of the pipe clamp to the bottom plate of the pipe clamp table; and fixing the pipe clamp to one-sided face of the pipe clamp table by a tightening bolt attached to the side face of the ditch type substrate. The pipe clamp table is attached to a conveyor frame by penetrating a fixing bolt through a cradle base part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an attachment jig for attaching a belt cleaner to a conveyor base in a belt cleaner that scrapes off deposits adhering to the surface of a return belt of a belt conveyor used for transporting raw materials.

In the belt conveyor, normally the conveyed product is carried on a carrier belt (conveying side belt), discharged on the driving pulley side and becomes a return belt (returning side belt) and returns to the driven pulley, but the adhering to the return side belt surface. There was a problem that an object (attachment to the belt) dropped in the middle and accumulated under the return side belt. In addition, the adhering matter has a problem of causing the return roller and the snap pulley to wear or adhering to these rollers to meander the return side belt.

The transport material deposit that has fallen under the return belt is regularly collected, but it falls and accumulates over the entire length of the return belt, which is very labor intensive and expensive. . In order to scrape off the adhering matter on the return side belt, a belt cleaner such as a scraper type, a brush type or a cleaning type is installed. Of these, scraper belt cleaners are often used. The scraper belt cleaner has a structure in which a tip made of a wear-resistant material is attached to a free end of a scraper plate or a rectangular bar-shaped rubber elastic body, and the tip is pressed against the surface of the return side belt to scrape off the adhered matter.

The conveyor belt is gradually worn as it is used, but the central portion is selectively worn in an arc shape. Further, since the long machine belt has a plurality of endless portions (belt connecting portions), a step is generated. Further, the return side belt is usually deformed into a convex arc shape due to the trough. Further, the endless part (joint part) of the belt peels off over time, and the endless end part peels off, resulting in a protrusion. A scraper belt cleaner (hereinafter referred to as a belt cleaner) is indispensable for scraping off deposits on the belt surface, but because of uneven wear, deformation, and protrusions, the scraper is applied uniformly to the belt surface. The method of touching and the method of avoiding momentary protrusions were insufficient, and there were problems such as insufficient scraping performance and troubles of broken belt.

In order to make the scraper function of the belt cleaner effective, the tip attached to the free end must be brought into precise contact with the return side belt surface. Further, the belt cleaner receives a horizontal force due to a frictional force in the belt traveling direction and a vertical vibration force due to the unevenness of the belt, so it needs to be firmly attached. For this reason, various types of belt cleaner mounting structures have been proposed.

In Japanese Patent Application Laid-Open No. 08-208020, an indicator member having both ends held by a pair of attachment members arranged on both sides in the width direction of the conveyor belt, a tip of a cleaner member disposed on the support member is a surface of the conveyor belt. There has been proposed a cleaner that is rotatably provided on the conveyor belt via a rubber elastic body that urges a support member at a position in pressure contact with the conveyor belt. The chip is attached to the cleaner member, the cleaner member is attached to the support member, the support member is supported by the movable base, and the movable base is fixed to the fixed base attached to the conveyor base with a bolt and nut. Conventionally, this attachment method is generally employed in many cleaners. In this method, the height of the chip needs to be adjusted by first loosening the bolts and nuts of the fixed base, lifting and lowering the movable base with the adjusting screw, and then tightening the bolts and nuts of the fixed base again. While adjusting the height with the adjusting screw, a heavy-weight cleaner must be accurately held at the set position.If the cleaner is displaced even a little, the origin will be shifted, and the positioning reliability of the adjusting screw will be lost. The height could not be adjusted precisely. In other words, it has been impossible to precisely adjust the height of the cleaner with the conventionally used belt cleaner mounting method. Further, during the operation of the belt, it is extremely dangerous to loosen the fixed base bolt. Therefore, it is impossible to adjust the height of the chip while observing the scraping state during the operation.

Japanese Laid-Open Patent Application No. 08-208020

The present invention solves the following problems. (1) A tip attached to the tip of a scraper or a rectangular stick-shaped rubber elastic body is brought into precise contact with the belt surface. (2) While the belt conveyor is operating, the contact state between the chip and the return side belt surface can be adjusted while observing the scraping state. (3) Make sure that the gantry is not loosely attached while the belt conveyor is operating, and the scraping performance does not deteriorate. (4) The belt cleaner can be set in a short time. (5) The belt cleaner mounting part should be compact so that it can be mounted in a narrow space.

The first solving means is that, as shown in claim 1, a plurality of scrapers each having a tip made of an abrasion-resistant material attached to a free end are attached to a gantry arranged in the width direction of the return side belt. In the belt cleaner in which the support pipe is attached to both ends of the frame and the support pipe is fixed to the conveyor frame, the support pipe is fitted to the U-bolt welded to the inside of the grooved base and the U-bolt. The pipe clamp is sandwiched and fixed by a pipe clamp made of a pipe holding plate, and the pipe clamp is placed on a pipe clamp table formed in a groove shape, and the bottom plate of the pipe clamp table is used for adjusting the height of the pipe clamp. A height adjustment bolt is attached, and the pipe clamp is connected to a tightening bolt attached to a side surface of the grooved base body of the pipe clamp table. The pipe clamp table is fixed by penetrating through a long hole provided on the side surface, and the fixing bolt provided on the other side of the pipe clamp table is passed through a frame receiving base attached to the conveyor frame, The belt cleaner is characterized in that the pipe clamp mounting base and the gantry receiving base are fastened and fixed and attached to a conveyor frame.

According to a second solving means, as shown in claim 2, the pipe clamp includes the U bolt welded inside the groove base, the pipe presser plate fitted to the U bolt, and the groove mold. A pipe comprising a fastening bolt attached to a side surface of a base, wherein the support pipe is sandwiched and fixed by the U bolt and the presser plate, and the pipe clamp is fixed by the fastening bolt. It is a clamp.

The effects of the first solving means are as follows. (1) Since the support pipes provided at both ends of the belt cleaner are fitted to the pipe rotation prevention body, the pipe rotation prevention body is placed on the pipe mounting body, and the weight of the belt cleaner is once handled by the pipe mounting body. By raising and lowering the pipe mounting body with the height adjusting bolt, the height of the tip can be adjusted easily and accurately, and the tip can be brought into contact with the return side belt surface precisely. (2) While the belt conveyor is in operation, the contact state between the chip and the return side belt surface can be adjusted while observing the scraping condition. (3) Since the support pipes at both ends of the belt cleaner are fastened and fixed by the U bolts of the pipe rotation prevention body, the fastening of the support pipe is not loosened due to the horizontal force or vibration of the belt during operation of the belt conveyor. (4) The belt cleaner can be set in a short time. (5) The belt cleaner mounting portion structure is compact and can be mounted in a narrow space of the conveyor base.

The effects of the second solution means (1) that the pipe can be firmly tightened, and therefore pipe rotation can be reliably prevented. (2) The pipe rotation prevention body prevents the pipe from rotating, and the pipe rotation prevention body can be adjusted in height in a state where it is free with respect to the pipe mounting body. Become. In addition, the height of the belt cleaner can be adjusted even when the belt is in operation.

The whole perspective view which carried out partial section of a belt cleaner. The attachment part perspective view of a belt cleaner support pipe. Sectional drawing of the attaching part of a belt cleaner support pipe. Sectional drawing of a pipe rotation prevention body. Sectional drawing of a pipe mounting body.

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

The first solving means is a gantry in which a plurality of scrapers 20 each having a tip 21 made of an abrasion resistant material attached to a free terminal 20a are arranged in the width direction of the return side belt 31, as shown in claim 1. In the belt cleaner 10 in which support pipes 50 are attached to both ends of the gantry 40 and the support pipes 50 are fixed to the conveyor frame 90, the support pipes 50 are welded to the inside of the grooved base 61. The pipe clamp 60 is sandwiched and fixed by a pipe clamp 60 including a U-bolt 62 and a pipe presser plate 64 fitted to the U-bolt 62, and the pipe clamp 60 is placed on a pipe clamp mounting base 70 formed in a groove shape. A height adjusting bolt 71 for adjusting the height of the pipe clamp 60 is attached to the bottom plate 70a of the pipe clamp mounting base 70. The clamp 60 is fixed by passing a fastening bolt 65 attached to the side surface 61a of the groove base 61 through a long hole 70c provided on one side surface 70b of the pipe clamp table 70, and the pipe clamp table. 70, the fixing bolt 73 provided on the other side surface 70d of the pipe clamp mount 70 is passed through the mount receiving base 80 attached to the conveyor frame 90, and the pipe clamp mount 70 and the mount receiving base 80 are fastened and fixed. The belt cleaner 10 is attached to the conveyor frame 90.

In general, the belt cleaner has a structure in which a tip 21 made of a wear-resistant material is attached to the free end 20a of the scraper 20 and abuts against the surface of the return side belt 31 to scrape off adhering matter. For example, FIG. 1 is a partial perspective view of a belt cleaner 10 in which a chip 21 is attached to a rectangular rod-shaped rubber elastic body 20 that is a scraping body 20. The rectangular rod-shaped rubber elastic body 20 is inserted into a groove 40 a provided in the groove-type gantry 40. The groove 40 a includes a push side plate 41, a receiving side plate 42 and a bottom plate 43. A nut 46 is attached to the pushing side plate 41, and a pressing bolt 45 is rotatably attached thereto. When the pressing plate 44 is pressed by the pressing bolt 45, the rectangular bar-shaped rubber elastic body 20 is pressed against the receiving side plate 42 and fixed. doing. Flange 47 is attached to both sides of gantry 40, and support pipe 50 is attached to flange 47.

  As shown in FIG. 4, the pipe clamp 60 includes a groove base 61, a U bolt 62, and a presser plate 64. The groove base 61 can be formed into a groove shape by press molding or welding a metal plate. The U bolt 62 is fixed to the groove base 61 by welding 67. A presser plate 64 is fitted to the U bolt 62, and the support pipe 50 is sandwiched between the U bolt 62 and the presser plate 64 and the nut 63 is tightened to fix the support pipe 50 to the pipe clamp 60. A clamping bolt 65 is provided on the side surface 61 a of the grooved base 61, and the pipe clamp 60 is fixed to the pipe clamp mounting table 70 with the clamping bolt 65.

As shown in FIG. 3, the pipe clamp 60 is placed on a pipe clamp table 70. On one side surface 70b of the pipe clamp mounting base, a long hole 70c opened upward is provided, and a fastening bolt 65 provided on the side surface 61a of the grooved base 61 is passed through the long hole 70c, and a nut 66 is inserted. By tightening, the pipe clamp 60 and the pipe clamp table 70 are fixed. The upper part of the long hole 70c is opened so that the fastening bolt 65 of the pipe clamp 60 can be inserted from the upper side of the long hole 70c.

A height adjusting bolt 71 for adjusting the height of the pipe clamp 60 and adjusting the pressing force of the tip 21 and the return side belt 31 is attached to the bottom plate 70a of the pipe clamp table 70. The height adjusting bolt 71 is fixed to be freely rollable by a nut 72 welded to the bottom plate 70a. By pushing up the bottom plate 61 b of the groove base 61 with the height adjusting bolt 71, the pipe clamp 60 is pushed up, the support pipe 50 attached to the pipe clamp 60 is pushed up, and the tip 21 and the return side belt 31 are pushed. The pressure is adjusted to a predetermined magnitude. A fixing bolt 73 is attached to the other side surface 70 d of the pipe clamp mounting table 70. In order to ensure strength, the fixing bolt 73 is inserted into a through hole 70e provided on the other side surface 70d and fixed by welding. The pipe clamp table 70 can be attached to the conveyor frame 90 by passing the fixing bolt 73 through the through hole 80a of the gantry receiving base 80 attached to the conveyor frame 90 and tightening the nut 74.

The procedure for attaching the belt cleaner 10 to the conveyor frame 90 is as follows. (1) The tip 21 of the belt cleaner 10 and the return side belt 31 are brought into contact with each other. (2) The contact angle between the tip 21 and the return side belt 31 is determined, the support pipe 50 is sandwiched between the U bolt 62 and the holding plate 64 of the pipe clamp 60, the nut 63 is tightened, and the support pipe 50 is fixed to the pipe clamp 60. To do. (3) The pipe clamp 60 is inserted into the pipe clamp table 70 from above, and the pipe clamp 60 is mounted on the pipe clamp table 70. (4) The pipe clamp mounting base 70 is fixed to the gantry receiving base 80 with bolts 73 and nuts 74 while maintaining the state where the tip 21 and the return side belt 31 are in contact with each other. (5) The bottom plate 61b of the groove base 61 is pushed up by several millimeters with the height adjusting bolt 71 so that the tip 21 presses the return side belt 31. (6) The pipe clamp 60 is fixed to the pipe clamp table 70 with the fastening bolt 65 and the nut 66.

The effect of the belt cleaner attached as described above is as follows. (1) By fixing the support pipes 50 provided at both ends of the belt cleaner 10 to the pipe clamp 60, placing the pipe clamp 60 on the pipe clamp table 70, and fixing the pipe clamp table 70 to the gantry receiving base 80, Since the weight of the belt cleaner 10 can be handled by the pipe clamp table 70, the pipe clamp 60 can be easily moved up and down by the height adjusting bolt 71, and the height of the chip 21 can be adjusted precisely and easily. Can precisely contact the surface of the return side belt 31. (2) While the belt conveyor 30 is operating, the pipe clamp 60 is not detached from the pipe clamp table 70 even if the tightening bolt 65 and the nut 66 that fix the pipe clamp 60 to the pipe clamp table 70 are slightly loosened. Therefore, the pipe clamp 60 can be moved up and down by the height adjusting bolt 71. Therefore, since the contact state between the tip 21 and the surface of the return side belt 31 can be adjusted while observing the scraping state, the adhered matter can always be scraped off in the best state. (3) Since the pipe clamp 60 welds the U-bolt 62 to the groove-shaped groove base 61, the support pipe 50 is sandwiched between the holding plate 64 and tightened with the nut 63, whereby the U-bolt 62 and the holding plate 64 are clamped. The support pipe 50 can be fixed by elastic deformation. For this reason, the support pipe 50 is not loosened by the horizontal force or vibration of the belt 30 during operation of the belt conveyor. (4) The belt cleaner 10 can be set in a short time because the height of the belt cleaner 10 can be precisely adjusted while the weight of the belt cleaner 10 is received by the pipe clamp mounting base 70 fixed to the gantry receiving base 80. . (5) The pipe clamp 60 and the pipe clamp mount 70 have a compact structure and can be mounted in a narrow space of the conveyor frame 90.

As a second solution, as shown in claim 2, the pipe clamp 60 includes the U bolt 62 welded to the inside of the groove base 61 and the pipe presser plate 64 fitted to the U bolt 62. And fastening bolts 65 attached to the side surface 61a of the groove base 61. The support pipe 50 is sandwiched and fixed between the U bolts 62 and the holding plate 64, and the fastening bolts 65 are used. The pipe clamp 60 is characterized in that the pipe clamp 60 is fixed.

As shown in FIG. 4, the pipe clamp 60 includes a groove base 61, a U bolt 62, and a presser plate 64. The groove base 61 can be formed into a groove shape by press molding or welding a metal plate. The U bolt 62 is fixed to the groove base 61 by welding 67. The weld 67 welds the arc portion 62a and the body portion 62b of the U bolt 62. A presser plate 64 is fitted to the U bolt 62, and the support pipe 50 is sandwiched between the U bolt 62 and the presser plate 64 and the nut 63 is tightened to fix the support pipe 50 to the pipe clamp 60. A clamping bolt 65 is provided on the side surface 61 a of the grooved base 61, and the pipe clamp 60 is fixed to the pipe clamp mounting table 70 with the clamping bolt 65. In order to increase the strength of the fastening bolt 65, a through hole 61c is provided in the side surface 61a, and the fastening bolt 65 is inserted into the through hole 61c and fixed by welding. The pipe clamp 60 can be used not only for fixing the belt cleaner 10 but also for general pipe clamping.

10: Belt cleaner 20: Elastic body made of a square bar rubber (scraping body)
20a: free side terminal 21: tip 30: belt 31: return side belt 40: frame 40a: groove 41: push side plate 42: receiving side plate 43: bottom plate 44: pressing plate 45: pressing bolt 46: nut 47: flange 50: support Pipe 60: Pipe clamp 61: Channel base 61a: Side surface 61b: Bottom plate 62: U bolt 62b: Arc part 62c: Body part 63: Nut 64: Presser plate 65: Tightening bolt 66: Nut 67: Welding 70: Pipe clamp stand 70a: bottom plate 70b: one side surface 70c: long hole 70d: other side surface 70e: through hole 71: height adjustment bolt 72: nut 73: fixing bolt 74: nut 80: pedestal receiving base 80a: through hole 90: conveyor frame

The first solving means is that, as shown in claim 1, a plurality of scrapers each having a tip made of an abrasion-resistant material attached to a free end are attached to a gantry arranged in the width direction of the return side belt. In the belt cleaner in which support pipes are attached to both ends of the gantry and the support pipes are fixed to a conveyor frame, the support pipes are welded to the inside of a grooved base body to increase rigidity , and the U bolts The pipe clamp is sandwiched between and fixed to a pipe clamp made of a pipe presser plate, and the pipe clamp is placed on a pipe clamp table formed in a groove shape. The bottom plate of the pipe clamp table is attached to the pipe clamp. A height adjustment bolt for height adjustment is attached, and the pipe clamp is a fastening bolt attached to a side surface of the grooved base, and the pipe Lamp table of being fixed allowed through the slot provided in one side surface, the pipe clamp mounting table, a fixed bolt which is provided on the other side of the pipe clamp table and brought through the frame receiving base, The belt cleaner is characterized in that the pipe clamp mounting base and the gantry receiving base are fastened and fixed.

According to a second solving means, as shown in claim 2, the pipe clamp includes the U bolt welded inside the groove base, the pipe presser plate fitted to the U bolt, and the groove mold. It is composed of a fastening bolt attached to the side surface of the base, and the support pipe is fixed by being sandwiched between the U bolt and the pipe pressing plate, and the pipe clamp is fixed by the fastening bolt. A pipe clamp according to claim 1.

The first solving means is a gantry in which a plurality of scrapers 20 each having a tip 21 made of an abrasion resistant material attached to a free terminal 20a are arranged in the width direction of the return side belt 31, as shown in claim 1. In the belt cleaner 10 in which support pipes 50 are attached to both ends of the gantry 40 and the support pipes 50 are fixed to the conveyor frame 90, the support pipes 50 are welded to the inside of the grooved base 61. The pipe clamp 60 is sandwiched and fixed by a pipe clamp 60 including a U bolt 62 having increased rigidity and a pipe presser plate 64 fitted to the U bolt 62. The pipe clamp 60 is attached to a pipe clamp table 70 formed in a groove shape. A height adjustment bolt 71 for adjusting the height of the pipe clamp 60 is attached to the bottom plate 70a of the pipe clamp table 70. The pipe clamp 60 is fixed by passing a fastening bolt 65 attached to the side surface 61a of the groove base 61 through a long hole 70c provided on one side surface 70b of the pipe clamp table 70, the pipe clamp table 70, a fixed bolt 73 provided on the other side 70d of the pipe clamp table 70, and allowed to penetrate the frame receiving base 80, a fixed clamping said frame receiving base 80 and the pipe clamp table 70 It is the belt cleaner 10 characterized by having.

As a second solution, as shown in claim 2, the pipe clamp 60 includes the U bolt 62 welded to the inside of the groove base 61 and the pipe presser plate 64 fitted to the U bolt 62. And the fastening bolt 65 attached to the side surface 61a of the groove base 61. The support pipe 50 is sandwiched and fixed between the U bolt 62 and the pipe holding plate 64, and the fastening bolt 65 is fixed. The pipe clamp 60 is characterized in that the pipe clamp 60 is fixed.

Claims (2)

A plurality of scrapers each having a tip made of an abrasion-resistant material attached to a free terminal are attached to a gantry arranged in the width direction of the return side belt, and the gantry is provided with support pipes at both ends, and the support In the belt cleaner in which the pipe is fixed to the conveyor frame, the support pipe is sandwiched and fixed by a pipe clamp including a U bolt welded to the inside of the grooved base and a pipe presser plate fitted to the U bolt, The pipe clamp is placed on a pipe clamp table formed in a groove shape, and a height adjustment bolt for adjusting the height of the pipe clamp is attached to the bottom plate of the pipe clamp table, The fastening bolt attached to the side surface of the groove-type substrate is fixed by passing it through a long hole provided on one side surface of the pipe clamp table. The pipe clamp table is fixed by tightening the pipe clamp table and the frame receiving base by passing a fixing bolt provided on the other side of the pipe clamp table through a frame receiving base attached to a conveyor frame. The belt cleaner is attached to a conveyor frame. The pipe clamp is composed of the U bolt welded to the inside of the groove base, the pipe presser plate fitted to the U bolt, and a clamping bolt attached to a side surface of the groove base. The pipe clamp according to claim 1, wherein the support pipe is fixed by being sandwiched between the U bolt and the presser plate, and the pipe clamp is fixed by the tightening bolt.