Conveyor belt tensioning mechanism for coal mine transportation equipment

Abstract

The conveying belt tensioning mechanism for the coal mine transportation equipment comprises a bottom plate, a supporting frame is fixedly installed on the left side of the top of the bottom plate, installation plates are fixedly installed on the front side and the rear side of the top of the bottom plate respectively, transportation rollers are movably connected to the inner sides of the installation plates respectively, and a loosening and tensioning mechanism is arranged on the left side of the top of the bottom plate. The loosening and tensioning mechanism comprises a tensioning frame, the tensioning frame is fixedly installed on the left side of the top of the bottom plate, an L-shaped plate is fixedly installed on the rear side of the top of the tensioning frame, a servo motor is fixedly installed on the top of the L-shaped plate, and two-way threaded rods are arranged on the front side and the rear side of the right side of the tensioning frame correspondingly. The directions of threads on the surfaces of the upper end and the lower end of the two-way threaded rod are opposite, and the tensioning mechanism is arranged to tension or loosen the conveying belt, so that the problem that the conveying belt is deformed due to the weight interference of ores after the conveying belt is used for a long time, and the conveying belt cannot convey the ores is effectively solved.

Description

Technical Field

[0001] The utility model relates to a conveyor belt tensioning mechanism for coal mine transportation equipment and belongs to the technical field of conveyor belts. Background Art

[0002] Conveyor belts, also known as transport belts, are composite products of rubber, fiber, metal, or plastic and fabric used in conveyor belts to carry and transport materials. Conveyor belts are widely used in cement, coking, metallurgy, chemical industry, steel and other industries where the conveying distance is short and the conveying volume is small.

[0003] A Chinese patent publication (publication number: CN 212739483 U) discloses a conveyor belt tensioning mechanism, which solves the problem of the prior art that the conveyor belt needs to be frequently tensioned manually. A conveyor belt tensioning mechanism includes a base, two first rotating rollers are arranged on the top of the base, the two first rotating rollers are rotatably connected to the base through a second support column, a driving motor is arranged at one end of one of the two first rotating rollers, the driving motor is fixedly connected to the second support column, the first rotating roller is drivingly connected to the output shaft of the driving motor, a second rotating roller is arranged at the bottom of the first rotating roller, the second rotating roller is fixedly connected to the second support column through the first support column, a support rod is arranged at the bottom of the second rotating roller, and a third rotating roller is sleeved on the outer wall of the support rod. The utility model can achieve the effect of only performing manual tensioning once when assembling the conveyor belt, and the conveyor belt can be automatically tensioned during subsequent use;

[0004] The above-mentioned device mainly relies on springs to tension the conveyor belt, but the spring itself is prone to shaking. As the spring shakes, the position of the transmission roller used for tensioning may change, thereby affecting the tensioning of the conveyor belt. The conveyor belt is deformed due to load-bearing during use, and the conveyor belt becomes loose after long-term use, causing the conveyor belt to slip and reduce the transmission efficiency.

[0005] Therefore, a conveyor belt tensioning mechanism for coal mine transportation equipment is proposed. Utility Model Content

[0006] In view of this, the utility model provides a conveyor belt tensioning mechanism for coal mine transportation equipment to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0007] The technical solution of the utility model is implemented as follows: a conveyor belt tensioning mechanism for coal mine transportation equipment comprises a bottom plate, a support frame is fixedly installed on the left side of the top of the bottom plate, mounting plates are fixedly installed on both the front and rear sides of the top of the bottom plate, and the inner sides of the mounting plates are movably connected with transport rollers;

[0008] A tensioning and loosening mechanism is provided on the left side of the top of the base plate, and the tensioning and loosening mechanism includes a tensioning frame, which is fixedly installed on the left side of the top of the base plate, an L-shaped plate is fixedly installed on the rear side of the top of the tensioning frame, and a servo motor is fixedly installed on the top of the L-shaped plate. Bidirectional threaded rods are provided on the front and rear sides of the right side of the tensioning frame, and the thread directions of the upper and lower end surfaces of the bidirectional threaded rods are opposite. Screw blocks are threadedly connected on the upper and lower sides of the surfaces of the two bidirectional threaded rods, and the right sides of the four screw blocks are movably connected with extension frames, and the right sides of the two extension frames are movably connected with connecting rods, and the inner sides of the two connecting rods are movably connected with tensioning rollers, and the surfaces of the tensioning roller and the transport roller are movably connected with conveyor belts.

[0009] Further preferably, the output end of the servo motor is fixedly connected to an active synchronous shaft, the front side of the top of the tensioning frame is movably connected to a synchronous belt, and the surfaces of the active synchronous shaft and the synchronous belt are movably connected to a driven synchronous shaft.

[0010] Further preferably, both front and rear sides of the right side of the tensioning frame are provided with limiting grooves, and the left sides of the four screw blocks are slidably connected to the inner cavities of the two limiting grooves.

[0011] Further preferably, limit rods are fixedly installed on both the front and rear sides of the right side of the tensioning frame, and the inner surfaces of the two connecting rods are slidably connected to the surfaces of the two limit rods.

[0012] Further preferably, four sides of the top of the base plate are threadedly connected with anchor bolts, and the anchor bolts are threadedly connected to the ground.

[0013] Further preferably, a protective plate is fixedly mounted on the top of the two mounting plates, and the size of the inner side of the protective plate matches the size of the conveyor belt.

[0014] Further preferably, a material receiving box is provided on the right side of the top of the bottom plate, and a handle is fixedly installed on the right side of the material receiving box.

[0015] Further preferably, both front and rear sides of the right side of the bottom plate are provided with slide grooves, and both front and rear sides of the bottom of the material receiving box are slidably connected to the inner cavities of the two slide grooves.

[0016] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0017] 1. The utility model sets a tensioning and loosening mechanism, and through the output of the servo motor, the servo motor drives the active synchronous shaft to rotate, and through the cooperation with the driven synchronous shaft and the synchronous belt, the bidirectional threaded rod rotates and drives the screw block to move inward. At this time, the extension frame flips due to the movement of the screw block, so that the connecting rod is pushed to the right by the extension frame. At this time, the connecting rod synchronously drives the tensioning roller to move, and the conveyor belt is tensioned or loosened by the movement of the tensioning roller, thereby effectively avoiding the conveyor belt from being deformed due to the weight interference of the ore after long-term use, making it impossible for the conveyor belt to transport the ore.

[0018] 2. The utility model can make two bidirectional threaded rods driven by a servo motor by setting an active synchronous shaft, a driven synchronous shaft and a synchronous belt, so as to conduct kinetic energy. By setting a limit groove, the movement of the screw block can be limited to avoid deviation of the screw block when it moves, which causes the movement direction of the tensioning roller to change synchronously, thereby affecting the tensioning work of the conveyor belt. By setting a limit rod, the movement direction of the connecting rod can be guided and limited to avoid deviation of the movement direction of the connecting rod, thereby affecting the tensioning work of the conveyor belt. By setting anchor bolts, the whole equipment can be stabilized to avoid the problem of ore falling during transportation due to collision of external factors. By setting a protective plate, the transported ore can be protected to avoid the ore falling from the top of the conveyor belt during transportation and affecting the normal transportation work. By setting a collecting box, the transported ore can be collected conveniently to avoid the problem of ore scattering on the ground after transportation. By setting a slide, the collecting box can be pulled and pulled to facilitate the dumping of the ore collected in the collecting box.

[0019] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a three-dimensional front view structural schematic diagram of the utility model;

[0022] Figure 2This is a schematic diagram of the disassembly structure of the mounting plate of the utility model;

[0023] Figure 3 This is a schematic diagram of the disassembly structure of the material receiving box of the utility model;

[0024] Figure 4 This is a schematic diagram of the tensioning mechanism structure of the utility model;

[0025] Figure 5 For the utility model Figure 4 A is an enlarged schematic diagram of the structure.

[0026] Figure numerals: 1. Base plate; 2. Tensioning mechanism; 201. Tensioning frame; 202. L-shaped plate; 203. Servo motor; 204. Active synchronous shaft; 205. Driven synchronous shaft; 206. Synchronous belt; 207. Bidirectional threaded rod; 208. Screw block; 209. Extension frame; 210. Connecting rod; 211. Tensioning roller; 212. Limiting groove; 213. Limiting rod; 3. Support frame; 4. Mounting plate; 5. Transport roller; 6. Transport belt; 7. Material receiving box; 8. Handle; 9. Slide; 10. Anchor bolt; 11. Protective plate. DETAILED DESCRIPTION

[0027] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0028] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0029] Example 1

[0030] like Figure 1-5 As shown, the embodiment of the utility model provides a conveyor belt tensioning mechanism for coal mine transportation equipment, including a bottom plate 1, a support frame 3 is fixedly installed on the left side of the top of the bottom plate 1, and mounting plates 4 are fixedly installed on both the front and rear sides of the top of the bottom plate 1, and the inner sides of the mounting plates 4 are movably connected with transport rollers 5;

[0031] A tensioning and loosening mechanism 2 is arranged on the left side of the top of the base plate 1, and the tensioning and loosening mechanism 2 includes a tensioning frame 201, the tensioning frame 201 is fixedly installed on the left side of the top of the base plate 1, an L-shaped plate 202 is fixedly installed on the rear side of the top of the tensioning frame 201, and a servo motor 203 is fixedly installed on the top of the L-shaped plate 202, and a bidirectional threaded rod 207 is arranged on the front and rear sides of the right side of the tensioning frame 201, and the thread directions of the upper and lower end surfaces of the bidirectional threaded rod 207 are opposite, and the upper and lower sides of the surfaces of the two bidirectional threaded rods 207 are threadedly connected with screw blocks 208, and the right sides of the four screw blocks 208 are movably connected with extension frames 209, and the right sides of the two extension frames 209 are movably connected with connecting rods 210, and the inner sides of the two connecting rods 210 are movably connected with tensioning rollers 211, and the tensioning roller 211 and the surface of the transport roller 5 are movably connected with a conveyor belt 6.

[0032] By setting up the tensioning and loosening mechanism 2, the servo motor 203 drives the active synchronous shaft 204 to rotate through the output of the servo motor 203, and the bidirectional threaded rod 207 rotates through the cooperation with the driven synchronous shaft 205 and the synchronous belt 206, and drives the screw block 208 to move inward. At this time, the extension frame 209 is flipped due to the movement of the screw block 208, so that the connecting rod 210 is pushed to the right by the extension frame 209. At this time, the connecting rod 210 synchronously drives the tensioning roller 211 to move, and the movement of the tensioning roller 211 is used to complete the tensioning or loosening of the conveyor belt 6, thereby effectively avoiding the conveyor belt 6 from being deformed due to the weight interference of the ore after long-term use, making it impossible for the conveyor belt 6 to transport the ore.

[0033] Example 2

[0034] In one embodiment, the output end of the servo motor 203 is fixedly connected to the active synchronous shaft 204, the front side of the top of the tensioning frame 201 is movably connected to the synchronous belt 206, the surfaces of the active synchronous shaft 204 and the synchronous belt 206 are movably connected to the driven synchronous shaft 205, the front and rear sides of the right side of the tensioning frame 201 are both provided with limiting grooves 212, the left sides of the four screw blocks 208 are all slidably connected to the inner cavities of the two limiting grooves 212, the front and rear sides of the right side of the tensioning frame 201 are both fixedly installed with limiting rods 213, and the two connecting rods 210 are The inner surfaces are slidably connected to the surfaces of the two limit rods 213, the top of the base plate 1 is threadedly connected with anchor bolts 10 all around, the anchor bolts 10 are threadedly connected to the ground, the tops of the two mounting plates 4 are fixedly installed with protective plates 11, the inner side dimensions of the protective plates 11 match the dimensions of the conveyor belt 6, a material receiving box 7 is provided on the right side of the top of the base plate 1, a handle 8 is fixedly installed on the right side of the material receiving box 7, slide grooves 9 are provided on the front and rear sides of the right side of the base plate 1, the front and rear sides of the bottom of the material receiving box 7 are slidably connected in the inner cavities of the two slide grooves 9.

[0035] By setting the active synchronous shaft 204, the driven synchronous shaft 205 and the synchronous belt 206, the two bidirectional threaded rods 207 can be driven by a servo motor 203, which plays a role in transmitting kinetic energy. By setting the limiting groove 212, the movement of the screw block 208 can be limited to avoid the deviation of the screw block 208 when moving, resulting in the synchronous change of the moving direction of the tensioning roller 211, thereby affecting the tensioning work of the conveyor belt 6. By setting the limiting rod 213, the moving direction of the connecting rod 210 can be guided and limited to avoid the deviation of the moving direction of the connecting rod 210, thereby affecting By setting anchor bolts 10 for the tensioning work of the conveyor belt 6, the overall equipment can be stabilized to prevent the ore from falling during transportation due to collision with external factors. By setting a protective plate 11, the transported ore can be protected to prevent the ore from falling from the top of the conveyor belt 6 during transportation and affecting normal transportation work. By setting a collecting box 7, the transported ore can be collected conveniently to prevent the ore from scattering on the ground after transportation. By setting a chute 9, the collecting box 7 can be pulled and pulled to facilitate the dumping of the ore collected in the collecting box 7.

[0036] When the utility model is working: when the conveyor belt 6 is used for a long time and becomes deformed and loose, the servo motor 203 drives the active synchronous shaft 204 to rotate through the output of the servo motor 203. At this time, the active synchronous shaft 204 synchronously drives the bidirectional threaded rod 207 to rotate through the mutual cooperation with the driven synchronous shaft 205 and the synchronous belt 206. At this time, the screw block 208 moves outward due to the rotation of the bidirectional threaded rod 207. At this time, the extension frame 209 flips over due to the movement of the screw block 208, so that the connecting rod 210 is pulled to the side by the extension frame 209. At this time, the connecting rod 210 drives the tensioning roller 211 to move synchronously to the left side, and the loose conveyor belt 6 is tensioned.

[0037] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A conveyor belt tensioning mechanism for coal mine transportation equipment, characterized in that: It comprises a bottom plate (1), a support frame (3) is fixedly mounted on the left side of the top of the bottom plate (1), mounting plates (4) are fixedly mounted on both the front and rear sides of the top of the bottom plate (1), and transport rollers (5) are movably connected to the inner sides of the mounting plates (4); A tensioning and loosening mechanism (2) is arranged on the left side of the top of the base plate (1), and the tensioning and loosening mechanism (2) comprises a tensioning frame (201), the tensioning frame (201) is fixedly mounted on the left side of the top of the base plate (1), an L-shaped plate (202) is fixedly mounted on the rear side of the top of the tensioning frame (201), a servo motor (203) is fixedly mounted on the top of the L-shaped plate (202), and a bidirectional threaded rod (207) is arranged on both the front and rear sides of the right side of the tensioning frame (201), and the bidirectional threaded rod (207) ) The threads on the upper and lower end surfaces are in opposite directions, the upper and lower sides of the surfaces of the two bidirectional threaded rods (207) are threadedly connected with screw blocks (208), the right sides of the four screw blocks (208) are movably connected with extension frames (209), the right sides of the two extension frames (209) are movably connected with connecting rods (210), the inner sides of the two connecting rods (210) are movably connected with tensioning rollers (211), and the surfaces of the tensioning rollers (211) and the transport rollers (5) are movably connected with conveyor belts (6).

2. The conveyor belt tensioning mechanism for coal mine transportation equipment according to claim 1, characterized in that: The output end of the servo motor (203) is fixedly connected to an active synchronous shaft (204), the front side of the top of the tensioning frame (201) is movably connected to a synchronous belt (206), and the surfaces of the active synchronous shaft (204) and the synchronous belt (206) are movably connected to a driven synchronous shaft (205).

3. The conveyor belt tensioning mechanism for coal mine transportation equipment according to claim 1, characterized in that: Limiting grooves (212) are provided on both the front and rear sides of the right side of the tensioning frame (201), and the left sides of the four screw blocks (208) are slidably connected to the inner cavities of the two limiting grooves (212).

4. The conveyor belt tensioning mechanism for coal mine transportation equipment according to claim 1, characterized in that: Limiting rods (213) are fixedly installed on both the front and rear sides of the right side of the tensioning frame (201), and the inner surfaces of the two connecting rods (210) are slidably connected to the surfaces of the two limiting rods (213).

5. The conveyor belt tensioning mechanism for coal mine transportation equipment according to claim 1, characterized in that: The top of the base plate (1) is threadedly connected to foundation bolts (10) on all four sides, and the foundation bolts (10) are threadedly connected to the ground.

6. The conveyor belt tensioning mechanism for coal mine transportation equipment according to claim 1, characterized in that: A protective plate (11) is fixedly mounted on the top of each of the two mounting plates (4), and the size of the inner side of the protective plate (11) matches the size of the conveyor belt (6).

7. The conveyor belt tensioning mechanism for coal mine transportation equipment according to claim 1, characterized in that: A material receiving box (7) is arranged on the right side of the top of the bottom plate (1), and a handle (8) is fixedly installed on the right side of the material receiving box (7).

8. The conveyor belt tensioning mechanism for coal mine transportation equipment according to claim 7, characterized in that: The front and rear sides of the right side of the bottom plate (1) are both provided with slide grooves (9), and the front and rear sides of the bottom of the material receiving box (7) are both slidably connected in the inner cavities of the two slide grooves (9).

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