Conveying belt sweeper capable of preventing conveying belt from being damaged
By designing a conveyor belt cleaner with torque adjustment rod and sliding sleeve, the problem that existing cleaners can easily cause damage to the conveyor belt when the torque is too high is solved, and safe separation between the cleaner and the conveyor belt is achieved to avoid damage.
Patent Information
- Application Number
- CN202420639216.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-03-29
AI Technical Summary
When the existing conveyor belt cleaners remove adhered coal, the torque is too high and it is easy to cause the cleaner blade and the conveyor belt to be blocked, causing damage to the conveyor belt.
A cleaner including a cleaner frame, a cleaner rod, a cleaner blade, a positioning nut, a return spring, a sliding sleeve and a torque adjustment convex strip are designed. Torque adjustment convex strips are provided at both ends of the cleaner rod. When the cleaner blade is subjected to exceed the set torque, the torque adjustment convex strip pushes the sliding sleeve to rotate the cleaner rod and avoids jamming.
It effectively avoids the jamming of the cleaner blade and the conveyor belt, prevents damage to the conveyor belt, and ensures that the cleaner can work normally and continues to clean up the coal on the conveyor belt.
Smart Images
Figure CN222989074U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a cleaner for a coal conveyor belt, belonging to the technical field of conveyor belt equipment of a belt conveyor. Background Technique
[0002] A conveyor belt is an important port coal transfer mechanism, which has the advantages of long transportation distance, continuous transportation, large transportation volume, long service life, and low equipment cost. Using a conveyor belt for transportation can reduce the loss of raw coal falling to the ground for the second time, improve environmental pollution, and reduce the number of equipment assemblies. During the process of transporting coal, due to the wide variety of coal types and large differences in water content, especially in the cold winter in the north, the water-containing coal is easy to freeze, resulting in the surface of the conveyor belt being extremely easy to adhere to coal. The increase in adhered coal will cause jams and damage during the operation of the belt. Therefore, it is necessary to use a cleaner to scrape the coal on the surface of the conveyor belt. Currently, the cleaners in use generally adopt a cleaning structure with a rigid connection to remove coal. When the amount of coal adhered to the conveyor belt is large and the adhesion is firm, when the coal adhered to is removed beyond the torque set by the cleaner blade, the cleaner blade will get stuck with the adhered coal, and not only the adhered coal cannot be removed, but also the belt will be torn, causing damage to the belt.
[0003] Therefore, it is very necessary to improve the existing cleaner to avoid damage to the conveyor belt when the cleaning torque is too large. Summary of the Utility Model
[0004] The technical problem to be solved by the utility model is to provide a conveyor belt cleaner that can avoid damage to the conveyor belt. When the amount of coal adhered to the surface of the conveyor belt is too large or the firmness exceeds the torque value set by the cleaner blade, the cleaner blade and the cleaner rod can rotate away from the conveyor belt, avoiding jamming between the cleaner blade and the conveyor belt and causing damage to the conveyor belt.
[0005] The technical solution to solve the above technical problem is as follows:
[0006] A conveyor belt cleaner capable of avoiding damage to the conveyor belt, which includes a cleaner frame, a cleaner rod, and a cleaner blade. Two cleaner frames are respectively fixed on the frames on both sides of the conveyor belt. The two ends of the cleaner rod are respectively connected to the two cleaner frames. The cleaner blade is installed on the cleaner rod, and the front end of the cleaner blade faces the plane of the conveyor belt. It also has positioning nuts, return springs, sliding sleeves, torque adjustment ridges, and outer sleeves. The two ends of the cleaner rod respectively have threads, and the two positioning nuts are respectively threadedly connected to the two ends of the cleaner rod. The two sliding sleeves are respectively sleeved on the cleaner rod inside the two positioning nuts. The inner hole wall of the sliding sleeve is in sliding fit with the outer wall of the cleaner rod. The two return springs are respectively sleeved on the cleaner rod between the two positioning nuts and the two sliding sleeves. One end of the return spring is welded to the sliding sleeve. The front ends of the two sliding sleeves respectively have a plurality of connecting sawteeth surrounding the circumference of the sleeve. The front ends of the two cleaner frames are respectively welded with outer sleeves. The two sliding sleeves are respectively embedded in the outer sleeves at the front ends of the two cleaner frames. The two ends of the cleaner rod respectively have a plurality of torque adjustment ridges surrounding the circumference. The torque adjustment ridges are rectangular blocks, and the front ends of the torque adjustment ridges are inclined planes. The inclined planes at the front ends of the plurality of torque adjustment ridges are respectively engaged with the plurality of connecting sawteeth on the circumference of the front end of the sliding sleeve.
[0007] For the above conveyor belt cleaner capable of avoiding damage to the conveyor belt, the outer circumferences of the two sliding sleeves respectively have a plurality of sliding strips. The sliding strips are rectangular blocks, and the length direction of the sliding strips is along the axial direction of the sliding sleeve. The plurality of sliding strips are evenly distributed around the outer wall of the sliding sleeve. The inner circumferences of the two outer sleeves respectively have a plurality of sliding grooves. The plurality of sliding grooves respectively match the plurality of sliding strips on the outer wall of the sliding sleeve. The plurality of sliding strips are respectively embedded in the sliding grooves, and the sliding grooves are in sliding fit with the sliding strips.
[0008] For the above conveyor belt cleaner capable of avoiding damage to the conveyor belt, a positioning card strip is welded on the outer wall of the cleaner rod. The length direction of the positioning card strip is along the length direction of the cleaner rod. There is a positioning card slot on the lower end surface of the cleaner blade. The positioning card slot of the cleaner blade is tightly connected to the positioning card strip of the cleaner rod by clamping.
[0009] The beneficial effects of the present utility model are:
[0010] A plurality of torque adjustment ridges are provided on the circumferences at both ends of the sweeper rod of the present utility model. The front end of the torque adjustment ridge faces the saw teeth at the front end of the sliding sleeve. The sliding sleeve is engaged with the torque adjustment sleeve by the elastic force of the return spring. When the torque received by the sweeper blade connected to the sweeper rod exceeds the elastic force of the return spring, the torque adjustment ridge of the sweeper rod can push open the sliding sleeve and rotate, so that the sweeper blade is separated from the accumulated coal, avoiding the jamming of the sweeper blade and the conveyor belt and damaging the conveyor belt; A plurality of sliding strips evenly distributed on the outer circumference of the sliding sleeve are respectively in sliding fit with the sliding grooves on the inner wall circumference of the outer sleeve, which can make the sliding sleeve slide within the outer sleeve. The sliding sleeve can be reset and connected to the sweeper rod by the return spring. The sliding grooves and sliding strips can make the sliding sleeve translate without rotating, maintaining the engagement and separation with the torque adjustment ridge.
[0011] The structure of the present utility model is reasonable and easy to use. When the coal adhered to the surface of the conveyor belt is too much or the firmness exceeds the torque value set by the sweeper blade, the sweeper blade can be separated from the coal on the surface of the conveyor belt, avoiding the jamming of the sweeper blade and the conveyor belt and causing damage to the conveyor belt. Brief Description of the Drawings
[0012] Figure 1 is a schematic structural diagram of the present utility model;
[0013] Figure 2 is Figure 1 a partial enlarged schematic diagram at A in
[0014] Figure 3 is Figure 2 the exploded structural schematic diagram of
[0015] The markings in the figure are as follows: redirecting roller 1, conveyor belt 2, sweeper frame 3, sweeper rod 4, sweeper blade 5, positioning strip 6, positioning slot 7, positioning nut 8, thread 9, return spring 10, sliding sleeve 11, connecting saw teeth 12, torque adjustment ridge 13, outer sleeve 14, sliding strip 15, sliding groove 16, fixing plate 17. Detailed Description of the Invention
[0016] The present utility model is composed of a sweeper frame 3, a sweeper rod 4, a sweeper blade 5, a positioning strip 6, a positioning slot 7, a positioning nut 8, a return spring 10, a sliding sleeve 11, a torque adjustment ridge 13, and an outer sleeve 14.
[0017] Figure 1 It shows that the present utility model includes a sweeper frame 3, a sweeper rod 4, and a sweeper blade 5. The fixing plates 17 of the two sweeper frames 3 are fixed on the frames on both sides of the conveyor belt 2 by bolts. The two ends of the sweeper rod 4 are respectively connected to the two sweeper frames 3. The sweeper blade 5 is installed on the sweeper rod 4, and the front end of the sweeper blade 5 faces the 2 plane.
[0018] Figure 1 It is shown that a positioning strip 6 is welded on the outer wall of the sweeper rod 4, and the length direction of the positioning strip 6 is along the length direction of the sweeper rod 4. A positioning groove 7 is provided on the lower end surface of the sweeper blade 5, and the positioning groove 7 of the sweeper blade 5 is tightly connected with the positioning strip 6 of the sweeper rod 4.
[0019] Figure 2 , 3 It is shown that a torque limiting mechanism is installed between the sweeper rod 4 and the sweeper frame 3. The function of the torque limiting mechanism is that under normal circumstances, the sweeper rod 4 and the sweeper blade 5 are in a position to scrape the coal accumulated on the conveyor belt 2. When the torque applied to the sweeper blade 5 is greater than the set value, the sweeper blade 5 may cause damage to the conveyor belt 2. The sweeper blade 5 can rotate under the action of the torque limiting mechanism and detach from the surface of the conveyor belt 2 to avoid damaging the conveyor belt 2. Then the torque limiting mechanism can reset the sweeper blade 5 to continue normal cleaning work. The torque limiting mechanism of the utility model includes a positioning nut 8, a reset spring 10, a sliding sleeve 11, a torque adjustment convex strip 13, and an outer sleeve 14.
[0020] Figure 2 , 3 It is shown that the two ends of the sweeper rod 4 are respectively threaded, the two positioning nuts 8 are respectively connected to the two ends of the sweeper rod 4 by threads, the two sliding sleeves 11 are respectively mounted on the sweeper rod 4 inside the two positioning nuts 8, and the inner hole wall of the sliding sleeve 11 is slidably matched with the outer wall of the sweeper rod 4. Two reset springs 10 are respectively mounted on the sweeper rod 4 between the two positioning nuts 8 and the two sliding sleeves 11, and one end of the reset spring 10 is welded to the rear end of the sliding sleeve 11. The reset spring 10 can keep the sliding sleeve 11 in a connected state with the sweeper rod 4, and can shrink when under pressure, so that the sweeper rod 4 can rotate and the sliding sleeve 11 can be reset again.
[0021] Figure 2 , 3 It is shown that the front ends of the two sliding sleeves 11 are respectively provided with a plurality of connecting serrations 12 surrounding the circumference of the sleeves, and the two ends of the sweeper rod 4 are respectively provided with a plurality of torque adjusting ridges 13 surrounding the circumference, the torque adjusting ridge 13 is a rectangular block, the length direction of the torque adjusting ridge 13 is along the length direction of the sweeper rod 4, the front end of the torque adjusting ridge 13 is a slope, the slopes at the front ends of the plurality of torque adjusting ridges 13 are respectively matched with the plurality of connecting serrations 12 on the circumference of the front end of the sliding sleeve 11, the slopes at the front ends of the torque adjusting ridges 13 are meshed with the connecting serrations 12 on the circumference of the front end of the sliding sleeve 11 for transmitting torque, and when the torque is greater than the set value, the front end slope of the torque adjusting ridge 13 is disengaged from the connecting serrations 12 on the front end of the sliding sleeve 11, so that the sweeper rod 4 can rotate.
[0022] Figure 2 、 3 3 shows that outer sleeves 14 are respectively welded to the front ends of two sweeper frames 3, and two sliding sleeves 11 are respectively embedded in the outer sleeves 14 at the front ends of the two sweeper frames 3. A plurality of sliding strips 15 are respectively arranged on the outer circumferences of the outer walls of the two sliding sleeves 11. The sliding strips 15 are rectangular blocks, and the length direction of the sliding strips 15 is along the axial direction of the sliding sleeves 11. The plurality of sliding strips 15 are evenly distributed around the outer walls of the sliding sleeves 11. A plurality of sliding grooves 16 are respectively arranged on the inner circumferences of the inner walls of the two outer sleeves 14. The plurality of sliding grooves 16 respectively match with the plurality of sliding strips 15 on the outer walls of the sliding sleeves 11. The plurality of sliding strips 15 are respectively embedded in the sliding grooves 16, and the sliding grooves 16 and the sliding strips 15 are in sliding fit. With such a structure, the sliding sleeve 11 can slide in the outer sleeve 14 without rotating, so that the connecting saw teeth 12 at the front end of the sliding sleeve 11 can maintain the meshing position with the torque adjusting rib 14 without misalignment, ensuring accurate meshing.
[0023] The using process of the utility model is as follows:
[0024] When in use, the redirecting roller 1 drives the conveyor belt 2 to rotate. At this time, the sweeper blade 5 sweeps the coal adhered to the surface of the conveyor belt 2. When the coal adhered to the surface of the conveyor belt 2 is too tight, the sweeper blade 5 is subjected to resistance and drives the sweeper rod 4 to rotate. When the sweeper rod 4 rotates, the torque adjusting rib 13 on the sweeper rod 4 rotates along with the sweeper rod 4. Since the inclined surface at the front end of the torque adjusting rib 13 meshes with the connecting saw teeth 12 at the front end of the sliding sleeve 11, at this time, the torque adjusting rib 13 rotates, while the sliding sleeve 11 cannot rotate due to the constraints of the sliding strips 15 and the sliding grooves 16 in the outer sleeve 14 and can only slide along the sweeper rod 4. The inclined surface at the front end of the torque adjusting rib 13 applies a force to the connecting saw teeth 12 at the front end of the sliding sleeve 11, pushing the sliding sleeve 11 to move backward and disengaging from the torque adjusting rib 13. The torque adjusting rib 13 rotates along with the sweeper rod 4, causing the sweeper blade 5 and the sweeper rod 4 to rotate backward and disengaging from the coal seam on the surface of the conveyor belt 2, avoiding tearing and damage to the surface of the conveyor belt 2.
[0025] During the working process, the elastic force of the return spring 10 continuously presses on the sliding sleeve 11. When the elastic force is less than the thrust of the inclined surface at the front end of the torque adjusting rib 13 when the sweeper rod 4 rotates, the sliding sleeve 11 will press against the return spring 10 and move, enabling the sweeper rod 4 and the sweeper blade 5 to rotate;
[0026] When the resistance of the adhered coal on the conveyor belt 2 to the cleaning blade 5 is less than the elastic force of the return spring 10, the return spring 10 will push the sliding sleeve 11 to move towards the torque adjustment rib 13, so that the connecting serrations 12 at the front end of the sliding sleeve 11 are re-engaged with the inclined surface at the front end of the torque adjustment rib 13, restoring the positioning of the connecting serrations 12 at the front end of the sliding sleeve 11 on the cleaning rod 4 and the cleaning blade 5 through the torque adjustment rib 13. The cleaning rod 4 and the cleaning blade 5 rotate to clean the coal on the conveyor belt 2 again.
[0027] An embodiment of the present utility model is as follows:
[0028] The size of the redirecting roller 1 is: CM9B2Z518, φ824mm * 2200mm
[0029] The conveyor belt 2 is ST2000 - 2000mm(7 + 6 + 5)-L;
[0030] The diameter of the cleaning rod 4 is 130mm and the length is 2500mm;
[0031] The length of the cleaning blade 5 is 1800mm, the width is 260mm, and the thickness is 25mm;
[0032] The positioning nut 8 is an M24mm nut;
[0033] The return spring 10 is YB30×160×200 - 3 GB / T2009;
[0034] The diameter of the sliding sleeve 11 is 140mm and the length is 180mm;
[0035] The length of the torque adjustment rib 13 is 120mm, the width is 30mm, and the thickness is 4mm;
[0036] The outer diameter of the outer sleeve 14 is 145mm, the inner diameter is 135mm, and the length is 125mm.
Claims
1. A conveyor belt cleaner capable of preventing damage to a conveyor belt, comprising a cleaner frame (3), a cleaner rod (4), and a cleaner blade (5), wherein two cleaner frames (3) are respectively fixed to frames on both sides of a conveyor belt (2), two ends of the cleaner rod (4) are respectively connected to the two cleaner frames (3), the cleaner blade (5) is mounted on the cleaner rod (4), and the front end of the cleaner blade (5) is opposite to the plane of the conveyor belt (2), characterized in that: The utility model also comprises a positioning nut (8), a reset spring (10), a sliding sleeve (11), a torque adjustment convex strip (13), and an outer sleeve (14). The two ends of the sweeper rod (4) are respectively provided with threads (9). The two positioning nuts (8) are respectively connected to the two ends of the sweeper rod (4) by threads. The two sliding sleeves (11) are respectively sleeved on the sweeper rod (4) inside the two positioning nuts (8). The inner hole wall of the sliding sleeve (11) is slidably matched with the outer wall of the sweeper rod (4). The two reset springs (10) are respectively sleeved on the sweeper rod (4) between the two positioning nuts (8) and the two sliding sleeves (11). One end of the reset spring (10) is in contact with the two positioning nuts (8) and the two sliding sleeves (11). The sliding sleeves (11) are welded and connected, and the front ends of the two sliding sleeves (11) are respectively provided with a plurality of connecting saw teeth (12) surrounding the circumference of the sleeves. The front ends of the two sweeper frames (3) are respectively welded with outer sleeves (14). The two sliding sleeves (11) are respectively embedded in the outer sleeves (14) at the front ends of the two sweeper frames (3). The two ends of the sweeper rod (4) are respectively provided with a plurality of torque adjustment convex strips (13) surrounding the circumference. The torque adjustment convex strips (13) are rectangular blocks, and the front ends of the torque adjustment convex strips (13) are inclined surfaces. The inclined surfaces at the front ends of the plurality of torque adjustment convex strips (13) are respectively meshed with the plurality of connecting saw teeth (12) on the circumference of the front end of the sliding sleeve (11).
2. The conveyor belt cleaner capable of preventing conveyor belt damage according to claim 1, characterized in that: The outer wall circumferences of the two sliding sleeves (11) are respectively provided with a plurality of sliding bars (15), the sliding bars (15) being rectangular blocks, the length direction of the sliding bars (15) being along the axial direction of the sliding sleeve (11), the plurality of sliding bars (15) being evenly distributed around the outer wall of the sliding sleeve (11), the inner wall circumferences of the two outer sleeves (14) are respectively provided with a plurality of sliding grooves (16), the plurality of sliding grooves (16) respectively matching with the plurality of sliding bars (15) on the outer wall of the sliding sleeve (11), the plurality of sliding bars (15) respectively being embedded in the plurality of sliding grooves (16), and the sliding grooves (16) and the sliding bars (15) being in sliding fit.
3. The conveyor belt cleaner capable of preventing conveyor belt damage according to claim 1, characterized in that: A positioning clip (6) is welded on the outer wall of the sweeper rod (4), the length direction of the positioning clip (6) is along the length direction of the sweeper rod (4), a positioning clip groove (7) is provided on the lower end surface of the sweeper blade (5), and the positioning clip groove (7) of the sweeper blade (5) is tightly connected to the positioning clip strip (6) of the sweeper rod (4).