Conveyor belt dust and debris forced cleaning device

Abstract

A device for forcibly cleaning dust and impurities stuck on a conveyor belt comprises a frame and mutually parallel pressure rollers and friction rollers connected to the frame; there are two pressure rollers on the left and right, which are rotatably connected to the frame; there is one friction roller, and the rotation axis of the friction roller is located between the rotation axes of the two pressure rollers; the path of the conveyor belt is S-shaped from the bottom of the first pressure roller to the top of the friction roller and then to the bottom of the second pressure roller; the cleaned surface of the conveyor belt contacts the surface of the friction roller; the surface of the friction roller is evenly distributed with a plurality of ridges, and the length direction of the ridges is parallel to the axis direction of the friction roller; the rotating shaft of the friction roller is connected to a rotation damping mechanism; under the obstruction of the rotation damping mechanism, the top edge of at least one ridge is kept on the path of the conveyor belt. The utility model forms a new structure with a new solution idea, which can better avoid possible damage to the belt by the dust cleaning device and has a better dust cleaning effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of grain conveying machinery, in particular to a device for forcibly cleaning dust and impurities stuck on a conveying belt. Background Art

[0002] Belt conveyors are very commonly used conveying machinery in the process of grain transportation. During the feeding process, since the dust on the outside of the grain contains more starch and sugar components, it is very easy to stick to the belt surface. The existing idea of ​​removing dust from the belt surface is mainly to scrape it off. The scraping device is generally at the tail of the conveyor to scrape the dust on the return belt surface after unloading. The main problem with this method is that the scraper is tilted downward toward the belt. During the forward movement of the belt, if there is a bounce, the scraper will damage the rubber belt surface, and when the downward pressure of the scraper is insufficient, it is difficult to scrape off the sticky dust. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, the utility model proposes a cleaning device, which does not use a sharp scraper, but relies on the sliding friction between the belt and the scraping mechanism to prevent the sticky dust from continuing to move along with the belt. The utility model is specifically described as follows.

[0004] A conveyor belt dust and impurities forced cleaning device comprises a frame and mutually parallel pressure rollers and friction rollers connected to the frame; the pressure rollers are provided with two left and right rollers, which are rotatably connected to the frame; the friction roller is provided with one, and the rotation axis of the friction roller is located between the rotation axes of the two pressure rollers; the conveyor belt has an S-shaped path from below the first pressure roller to above the friction roller and then to below the second pressure roller; the cleaned surface of the conveyor belt contacts the surface of the friction roller;

[0005] The surface of the friction roller is uniformly distributed with a plurality of ridges, and the length direction of the ridges is parallel to the axis direction of the friction roller; on the radial section of the ridges, the corresponding shape of the top edge of the ridges is a straight line;

[0006] The rotating shaft of the friction roller is connected to a rotation damping mechanism; under the obstruction of the rotation damping mechanism, the top edge of at least one ridge is kept on the path of the conveyor belt. If the number of ridges is large and the distance between the pressure roller and the friction roller is small, multiple ridges will contact the belt. If the number of ridges is small and the distance between the pressure roller and the friction roller is large, the ridge located at the top of the friction roller will contact the belt.

[0007] The principle of this device is that the belt is pressed to the surface of the friction roller by the pressure roller, and the dust on the belt surface is wiped off by the friction roller as the belt moves forward. The convex ridges prevent the dust from moving forward with the belt due to the restriction of the rotation damping mechanism.

[0008] Furthermore, the rotation damping mechanism includes: a spring sheet connected to the frame and a protrusion connected to the side of the friction roller; the number of the protrusions is consistent with the number of ridges; the protrusion rotates with the friction roller; the root of the spring sheet is connected to the frame, and the head of the spring sheet blocks the rotation path of the protrusion; the head of the spring sheet blocks a protrusion, and accordingly, the top edge of a ridge remains on the path of the conveyor belt; a protrusion pushes the spring sheet away, and after the friction roller rotates, the next protrusion is blocked by the spring sheet.

[0009] When the firmness of the dust adhesion or other special working conditions make the force between the ridge and the belt too large, the protrusion can break through the obstruction of the spring sheet, allowing the corresponding ridge to leave the belt, avoiding the ridge from damaging the belt or other faults.

[0010] Furthermore, the left and right sides of the top edge of the ridge are straight folded edges.

[0011] The straight folded edges form right angles or acute angles, which are better at removing sticky dust than rounded corners.

[0012] Furthermore, it also includes a damping adjustment mechanism, whose structure is: a plurality of through holes are opened in the middle of the spring sheet along its length direction, and a plurality of countersunk holes are provided on the frame, and the positions of the countersunk holes correspond to the positions of the through holes one by one, and a screw can be detachably passed through the through hole and screwed into the corresponding countersunk hole.

[0013] By changing the screw fixing positions, the length of the elastically deformable portion of the spring sheet can be changed, thereby changing the ability to prevent the protrusion from rotating.

[0014] Furthermore, it also includes a tension adjustment mechanism for the conveyor belt, which has the following structure: two pressure rollers are connected to the frame through two sets of bearing structures respectively; for any bearing structure of any pressure roller: a vertical slide groove is connected to the frame, and the bearing seat of the bearing structure is slidably connected in the slide groove; a compression spring is connected in the slide groove, one end of the compression spring presses against the bearing seat, and the other end of the compression spring is connected to the slider; an adjusting screw is screwed into the screw hole on the blocking plate of the slide groove and presses against the slider.

[0015] By adjusting the compression degree of the compression spring, the potential energy of the compression spring is adjusted, thereby changing the pressure acting on the pressure roller and adjusting the length of the S-shaped path. In this structure, the adjustment is made from the end of the chute.

[0016] Another structure is: it also includes a tension adjustment mechanism for the conveyor belt, and its structure is: the two pressure rollers are connected to the frame through two sets of bearing structures respectively; for any bearing structure of any pressure roller: a vertical slide groove is connected to the frame, and the bearing seat of the bearing structure is slidably connected in the slide groove; a compression spring is connected in the slide groove, one end of the compression spring presses against the bearing seat, and the other end of the compression spring is connected to a wedge-shaped slider; a wedge block is arranged at the end of the slide groove, and the inclined surfaces of the wedge-shaped slider and the wedge block correspond to each other and fit together; an adjusting screw is screwed into the screw hole on the side wall of the slide groove and presses against the wedge block.

[0017] The effect of this structure is basically the same as the previous structure. This structure uses a side-spin adjustment screw, a wedge block and a wedge slider to fine-tune the initial potential energy of the compression spring. Compared with the previous structure, it is suitable for situations with different structural space restrictions.

[0018] Compared with commonly used technical means, the utility model forms a new structure with a new solution idea, which can better avoid possible damage of the belt by the dust cleaning device and has a better dust cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural principle diagram of this embodiment;

[0020] Figure 2 yes Figure 1 Schematic diagram of the left perspective;

[0021] Figure 3 is a structural schematic diagram of a rotation damping mechanism;

[0022] Figure 4 It is a schematic diagram of the structure of the shrapnel;

[0023] Figure 5 It is a schematic diagram of the first tension adjustment mechanism;

[0024] Figure 6 is a schematic diagram of the mechanism of the second tension adjustment mechanism;

[0025] In the figure: frame 1, pressure roller 2, friction roller 3, side wall 4, convex ridge 5, spring piece 6, protrusion 7, through hole 8, tension adjustment mechanism 9, slide groove 10, bearing seat 11, compression spring 12, slider 13, adjustment screw 14, blocking plate 15, wedge-shaped slider 16, wedge-shaped block 17. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0027] refer to Figure 1 , Figure 2 A conveyor belt dust and impurities forced cleaning device comprises a frame 1 and a pressure roller 2 and a friction roller 3 connected to the frame and parallel to each other; the pressure roller 2 has two left and right rollers, which are rotatably connected to the frame; the friction roller 3 has one, and the rotation axis of the friction roller is located between the rotation axes of the two pressure rollers; the conveyor belt has an S-shaped path from the bottom of the first pressure roller to the top of the friction roller and then to the bottom of the second pressure roller; the cleaned surface of the conveyor belt contacts the surface of the friction roller 3;

[0028] The surface of the friction roller 3 is evenly distributed with a plurality of ridges 5, the length direction of which is parallel to the axis direction of the friction roller; on the radial section of the ridge, the corresponding shape of the top edge of the ridge is a straight line; the left and right sides of the top edge of the ridge are straight folded edges.

[0029] The rotating shaft of the friction roller is connected with a rotation damping mechanism; under the blocking of the rotation damping mechanism, the top edge of at least one convex ridge is kept on the path of the conveying belt.

[0030] Further references Figure 3 and Figure 4 The rotation damping mechanism includes: a spring sheet 6 connected to the frame 2 and a protrusion 7 connected to the side of the friction roller (in this example, specifically connected to the rotating shaft of the friction roller); the number of protrusions is consistent with the number of ridges; the protrusion rotates with the friction roller; the root of the spring sheet 6 is connected to the frame 1, and the head of the spring sheet 6 blocks the rotation path of the protrusion 7; the head of the spring sheet blocks a protrusion, and accordingly, the top edge of a ridge remains on the path of the conveyor belt; a protrusion pushes away the spring sheet, and after the friction roller rotates, the next protrusion is blocked by the spring sheet.

[0031] It also includes a damping adjustment mechanism, which has the following structure: a plurality of through holes 8 are opened in the middle of the spring piece 6 along its length direction, and a plurality of countersunk holes are arranged on the frame, the positions of the countersunk holes and the through holes correspond one to one, and a screw can be detachably passed through the through hole and screwed into the corresponding countersunk hole.

[0032] It also includes a tension adjustment mechanism 9 for the conveyor belt, and its structure is as follows:

[0033] Further references Figure 5 , the two pressure rollers are connected to the frame through two sets of bearing structures respectively; for any bearing structure of any pressure roller: a vertical slide groove 10 is connected to the frame 1, and the bearing seat 11 of the bearing structure is slidably connected in the slide groove 10; a compression spring 12 is connected in the slide groove 10, one end of the compression spring presses against the bearing seat, and the other end of the compression spring is connected to the slider 13; an adjusting screw 14 is screwed into the screw hole on the blocking plate 15 of the slide groove and presses against the slider 13.

[0034] Further references Figure 6 , the two pressure rollers are connected to the frame through two sets of bearing structures respectively; for any bearing structure of any pressure roller: a vertical slide groove 10 is connected to the frame 1, and the bearing seat 11 of the bearing structure is slidably connected in the slide groove 10; a compression spring 12 is connected in the slide groove 10, one end of the compression spring presses against the bearing seat, and the other end of the compression spring is connected to the wedge-shaped slider 16; a wedge-shaped block 17 is arranged at the end of the slide groove, and the inclined surfaces of the wedge-shaped slider and the wedge-shaped block correspond to each other; an adjusting screw 14 is screwed into the screw hole on the side wall 4 of the slide groove and presses against the wedge-shaped block.

Claims

1. A device for forcibly cleaning dust and debris from a conveyor belt, characterized in that The invention comprises a frame and mutually parallel pressure rollers and friction rollers connected to the frame; the pressure rollers are provided on the left and right sides and are rotatably connected to the frame; the friction roller is provided on the right and left sides and the rotation axis of the friction roller is located between the rotation axes of the two pressure rollers; the conveying belt has an S-shaped path from the bottom of the first pressure roller to the top of the friction roller and then to the bottom of the second pressure roller; the cleaned surface of the conveying belt contacts the surface of the friction roller; The surface of the friction roller is uniformly distributed with a plurality of ridges, and the length direction of the ridges is parallel to the axis direction of the friction roller; on the radial section of the ridges, the corresponding shape of the top edge of the ridges is a straight line; The rotating shaft of the friction roller is connected with a rotation damping mechanism; under the blocking of the rotation damping mechanism, the top edge of at least one convex ridge is kept on the path of the conveying belt.

2. The conveyor belt dust and debris forced cleaning device according to claim 1 is characterized in that The rotation damping mechanism includes: a spring sheet connected to the frame and a protrusion connected to the side of the friction roller; the number of the protrusions is consistent with the number of ridges; the protrusion rotates with the friction roller; the root of the spring sheet is connected to the frame, and the head of the spring sheet blocks the rotation path of the protrusion; the head of the spring sheet blocks a protrusion, and accordingly, the top edge of a ridge remains on the path of the conveyor belt; a protrusion pushes the spring sheet away, and after the friction roller rotates, the next protrusion is blocked by the spring sheet.

3. The device for forcibly cleaning dust and debris from conveyor belts according to claim 1 is characterized in that The left and right sides of the top edge of the convex ridge are straight folded edges.

4. The device for forcibly cleaning dust and debris from conveyor belts according to claim 2 is characterized in that It also includes a damping adjustment mechanism, which has the following structure: a plurality of through holes are opened in the middle of the spring sheet along its length direction, a plurality of countersunk holes are arranged on the frame, the positions of the countersunk holes correspond to the through holes one by one, and a screw can be detachably passed through the through hole and screwed into the corresponding countersunk hole.

5. The device for forcibly cleaning dust and debris from conveyor belts according to claim 1 is characterized in that It also includes a tension adjustment mechanism for the conveyor belt, which has the following structure: two pressure rollers are connected to the frame through two sets of bearing structures respectively; for any bearing structure of any pressure roller: a vertical slide groove is connected to the frame, and the bearing seat of the bearing structure is slidably connected in the slide groove; a compression spring is connected in the slide groove, one end of the compression spring presses against the bearing seat, and the other end of the compression spring is connected to the slider; an adjusting screw is screwed into the screw hole on the blocking plate of the slide groove and presses against the slider.

6. The device for forcibly cleaning dust and debris from conveyor belts according to claim 1 is characterized in that It also includes a tension adjustment mechanism for the conveyor belt, which has the following structure: two pressure rollers are connected to the frame through two sets of bearing structures respectively; for any bearing structure of any pressure roller: a vertical slide groove is connected to the frame, and the bearing seat of the bearing structure is slidably connected in the slide groove; a compression spring is connected in the slide groove, one end of the compression spring presses against the bearing seat, and the other end of the compression spring is connected to a wedge-shaped slider; a wedge-shaped block is arranged at the end of the slide groove, and the inclined surfaces of the wedge-shaped slider and the wedge-shaped block correspond to each other and fit together; an adjusting screw is screwed into the screw hole on the side wall of the slide groove and presses against the wedge-shaped block.

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