Anti-reverse device for coal mine belt conveyor

Abstract

The utility model relates to the technical field of coal mining, in particular to an anti-reverse device for a coal mine belt conveyor. According to the technical scheme, the device comprises two bearing frames and two middle frames arranged on the bearing frames, and conveying assemblies and anti-reverse assemblies are arranged on the middle frames; the conveying assembly comprises a conveying belt in transmission connection with the inner sides of the two middle frames, a plurality of connecting rods are fixedly installed at the tops of the two middle frames, three rollers are rotationally installed at the top of each connecting rod, the outer ends of the two rollers on the outer side are inclined upwards, and the rollers are located on the inner side of the conveying belt and support the conveying belt in a rolling mode. Through the arrangement of the U-shaped frame, the fixing rod and the sliding rod, the fixing frame and the clamping block are matched with each other, automatic clamping and fixing can be achieved when the conveying belt conducts reverse conveying, clamping and fixing can be relieved when the conveying belt conducts normal conveying, reverse-preventing operation can be conveniently conducted on the conveying belt, mounting and dismounting operation can be conveniently conducted on the fixing frame, and the structure is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to an anti-reverse device for a coal mine belt conveyor. Background Art

[0002] Coal is a solid combustible mineral formed by plant remains in the earth's crust through a long period of geological action. It is an important energy resource. In the process of coal mining, it is necessary to use belts to transport the coal, and it is necessary to use an anti-reverse device for the coal belt conveyor.

[0003] After searching, an anti-reverse device for a coal mine belt conveyor with application announcement number CN221853198U is found, which includes a main body, an adjusting mechanism is arranged on the inner side of the main body, and the adjusting mechanism is used to tighten the transmission belt to prevent the transmission belt from slipping and retreating; a chassis is provided on the main body, and a collecting mechanism is provided on one side of the main body, and the collecting mechanism is used to absorb and reduce dust thrown near the transmission belt; the transmission belt is arranged at the upper end of the collecting mechanism, a first motor is provided on one side of the transmission belt, and a heating mechanism is provided on the inner side of the transmission belt, and the heating mechanism is used to heat and evaporate water vapor on the contact surface between the transmission roller and the transmission belt to ensure the dryness of the contact surface.

[0004] In the prior art, there are the following problems:

[0005] Usually, when transporting coal, the distance of coal transportation is long, and a longer belt is required to transport the coal. However, when transporting coal, it is not convenient to perform anti-reverse operation on the existing belt. Utility Model Content

[0006] The purpose of the utility model is to provide an anti-reverse device for a coal mine belt conveyor to solve the problems raised in the above background technology.

[0007] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0008] The bottom of the carrying frame and the H frame are both fixedly installed with a concrete foundation, which drives the top of the conveyor belt to move to the left, and then guides the mined coal to the top of the conveyor belt. The upper bracket supports the roller rotation, and the roller is used to make the middle part of the conveyor belt concave downward, which can facilitate the transportation of the coal. When the conveyor belt is conveying, the bottom of the conveyor belt moves to the right along the inside of the fixed frame, so that the conveyor belt drives the two clamping blocks to move to the right and separate the two clamping blocks. When the conveyor belt is reversed, the clamping block can be pulled to move to the left, so that the two clamping blocks are closed during movement to clamp and fix the conveyor belt. It can automatically clamp and fix when the conveyor belt is reversed, and release the clamping when the conveyor belt is conveyed normally, which is convenient for anti-reverse operation of the conveyor belt. The U-shaped frame can be used to facilitate the installation and disassembly of the fixed rod, and the fixed frame can be driven to move back and forth synchronously by driving the sliding rod to slide back and forth, so that the fixed frame can be conveniently clamped on the outside of the conveyor belt, which is convenient for installation and disassembly of the fixed frame and has a simple structure.

[0009] Preferably, two bearing columns are fixedly installed on the top of the bearing frame, two supporting blocks are fixedly connected to the top of the two bearing columns, and the two intermediate frames are fixedly installed on the top of the two supporting blocks respectively. The intermediate frames can be supported and fixed by the bearing columns and the supporting blocks.

[0010] Preferably, the tops of the two carriers are fixedly connected to drive rollers, both of which are located inside the conveyor belt and provide rolling support for the conveyor belt. The top of the right carrier is fixedly connected to a tensioning structure, which is located outside the conveyor belt and provides rolling support for the conveyor belt. A driving device is provided on the front or rear side of each of the two drive rollers. The driving device can drive the drive rollers to rotate, thereby rolling the conveyor belt, and the tension of the conveyor belt can be adjusted by the tensioning structure.

[0011] Preferably, the front and rear sides of the intermediate frame are both provided with a plurality of guardrails, which are fixedly connected to each other. Conveyor rollers are rotatably mounted on both ends of the two intermediate frames, and the two conveyor rollers are both located inside the conveyor belt and provide rolling support for the conveyor belt. The guardrails can provide protection and prevent people from approaching the conveyor belt, which may cause safety hazards.

[0012] Preferably, one side of the U-shaped frame is threaded with multiple fixing bolts, the U-shaped frame is fixed to the H-shaped frame via the fixing bolts, multiple reinforcement frames are fixedly connected between the fixing rod and the U-shaped frame, and each H-shaped frame is rotatably mounted with a support roller on its inner side. The support roller is located at the bottom of the conveyor belt and provides rolling support for the conveyor belt. The fixing bolts can be used to install and fix the U-shaped frame, the reinforcement frames can improve the structural strength between the fixing rod and the U-shaped frame, and the support rollers can provide rolling support for the bottom of the conveyor belt.

[0013] Preferably, a sliding sleeve is fixedly mounted on one end of the fixing rod, the sliding rod is located inside the sliding sleeve and is slidably connected to the sliding sleeve, a fixing knob is threadedly connected to the top of the sliding sleeve, and the sliding rod and the sliding sleeve are fixed together via the fixing knob. The sliding sleeve facilitates the sliding rod to slide forward and backward, and the fixing knob can fix the sliding rod and the sliding sleeve.

[0014] Preferably, each of the rollers is rotatably connected to the connecting rod via two upper brackets, and an oblique rod is fixedly connected between the outer upper brackets and the connecting rod. The upper brackets can support the rollers and facilitate the rotation of the rollers to provide rolling support for the conveyor belt, and the oblique rods can improve the structural strength of the outer upper brackets.

[0015] Preferably, the top and bottom of the inner wall of the fixing frame are provided with guide slopes, and two track rods are fixedly mounted on the inner sides of the two guide slopes, and each clamping block is slidably connected to the two track rods. The guide slopes can guide the movement of the clamping block, so that the clamping block closes when moving to the left and separates when moving to the right, and the track rods can facilitate the sliding of the clamping block.

[0016] Preferably, friction pads are fixedly mounted on the inner sides of the two clamping blocks, and tension springs are fixedly connected between one side of the two clamping blocks and the fixing frame. The friction pads can increase the friction between the clamping blocks and the conveyor belt, allowing the clamping blocks to clamp and fix the conveyor belt, and the tension springs can pull the clamping blocks to move leftward.

[0017] Preferably, a pull rod is fixedly mounted on one side of each of the two clamping blocks, and two movable slots are formed on one side of the fixing frame, through which the two pull rods extend out of one side of the fixing frame. The pull rod can be used to pull the clamping block to the right, making it easier to clamp the fixing frame to the outside of the conveyor belt, thereby facilitating the installation and fixation of the fixing frame.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] By setting up the U-shaped frame, the fixed rod, the sliding rod, the fixed frame and the clamping block, the conveyor belt moves to the right along the inner side of the fixed frame when the coal mine is transported by the conveyor belt. When the conveyor belt is reversed, the clamping block is pulled to the left by the force of the tension spring, so that the two clamping blocks are closed during movement to clamp and fix the conveyor belt. The conveyor belt can be automatically clamped and fixed when reversed and released when the conveyor belt is transported normally, which is convenient for anti-reverse operation of the conveyor belt. The U-shaped frame can be used to facilitate the installation and disassembly of the fixed rod, and the fixed frame can be conveniently clamped on the outside of the conveyor belt by driving the sliding rod to slide back and forth, which is convenient for installation and disassembly of the fixed frame, and the structure is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 For the utility model Figure 1 A schematic diagram of the enlarged structure of part A;

[0022] Figure 3 This is a schematic diagram of the structure of the carrier frame of the present utility model;

[0023] Figure 4 This is a schematic diagram of the connecting rod structure of the present utility model;

[0024] Figure 5 This is a partial side structural diagram of the conveyor belt of the present utility model;

[0025] Figure 6 This is a schematic diagram of the cross-sectional structure of the fixing frame of the present invention;

[0026] Figure 7 This is a schematic diagram of the cross-sectional structure of the clamping block of the present invention.

[0027] In the figure: 1. Carrying frame; 2. Carrying column; 3. Driving roller; 4. Tensioning structure; 5. Guardrail; 6. Support block; 7. Intermediate frame; 8. Conveyor belt; 9. H-frame; 10. Conveyor roller; 11. Driving device; 12. Support roller; 13. U-shaped frame; 14. Reinforcement frame; 15. Fixing bolt; 16. Fixing rod; 17. Sliding sleeve; 18. Sliding rod; 19. Fixing knob; 20. Fixed frame; 21. Connecting rod; 22. Upper bracket; 23. Diagonal rod; 24. Roller; 25. Track rod; 26. Clamping block; 27. Tension spring; 28. Friction pad; 29. ​​Pull rod; 30. Movable groove; 31. Guide slope. DETAILED DESCRIPTION

[0028] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0029] The utility model provides Figure 1-7 The anti-reversal device for a coal mine belt conveyor shown in the figure includes two supporting frames 1 and two intermediate frames 7 arranged on the supporting frames 1, and the intermediate frames 7 are provided with a conveying assembly and an anti-reversal assembly; the conveying assembly includes a conveyor belt 8 that is transmission-connected to the inner sides of the two intermediate frames 7, and a plurality of connecting rods 21 are fixedly installed on the top of the two intermediate frames 7, and three rollers 24 are rotatably installed on the top of each connecting rod 21, and the outer ends of the two outer rollers 24 are inclined upward, and the rollers 24 are located on the inner sides of the conveyor belt 8 and provide rolling support for the conveyor belt 8; the anti-reversal assembly includes a plurality of H frames 9 fixedly installed on the bottom of the two intermediate frames 7, and a U-shaped frame 13 is fixedly connected to the front side of one of the H frames 9, and a fixed rod 16 is fixedly installed on the front side of the U-shaped frame 13, and a sliding rod 18 is slidably installed on one end of the fixed rod 16, and a rear end of the sliding rod 18 is fixedly connected to a fixed frame 20, and one side of the conveyor belt 8 extends to the inner side of the fixed frame 20, and two clamping blocks 26 are slidably installed on the inner side of the fixed frame 20, and the conveyor belt 8 extends to the inner sides of the two clamping blocks 26;

[0030] Two bearing columns 2 are fixedly installed on the top of the bearing frame 1, and the tops of the two bearing columns 2 are fixedly connected to two support blocks 6, and two intermediate frames 7 are fixedly installed on the tops of the two support blocks 6 respectively;

[0031] The tops of the two carriers 1 are fixedly connected with driving rollers 3. Both driving rollers 3 are located inside the conveyor belt 8 and provide rolling support for the conveyor belt 8. The top of the right carrier 1 is fixedly connected with a tensioning structure 4. The tensioning structure 4 is located outside the conveyor belt 8 and provides rolling support for the conveyor belt 8. A driving device 11 is provided on the front or rear side of the two driving rollers 3.

[0032] A plurality of guardrails 5 are provided on the front and rear sides of the intermediate frame 7, and the guardrails 5 are fixedly connected to each other. Conveyor rollers 10 are rotatably installed at both ends of the two intermediate frames 7. The two conveyor rollers 10 are located on the inner side of the conveyor belt 8 and provide rolling support for the conveyor belt 8.

[0033] One side of the U-shaped frame 13 is threadedly connected with a plurality of fixing bolts 15, and the U-shaped frame 13 is fixed to the H frame 9 by the fixing bolts 15. A plurality of reinforcing frames 14 are fixedly connected between the fixing rod 16 and the U-shaped frame 13. A support roller 12 is rotatably installed on the inner side of each H frame 9. The support roller 12 is located at the bottom of the conveyor belt 8 and provides rolling support for the conveyor belt 8.

[0034] A sliding sleeve 17 is fixedly mounted on one end of the fixing rod 16. A sliding rod 18 is located inside the sliding sleeve 17 and is slidably connected to the sliding sleeve 17. A fixing knob 19 is threadedly connected to the top of the sliding sleeve 17. The sliding rod 18 and the sliding sleeve 17 are fixed together by the fixing knob 19.

[0035] Each roller 24 is rotatably connected to the connecting rod 21 via two upper brackets 22 , and an oblique rod 23 is fixedly connected between the outer upper bracket 22 and the connecting rod 21 ;

[0036] The top and bottom of the inner wall of the fixing frame 20 are provided with guide slopes 31. Two track rods 25 are fixedly mounted on the inner sides of the two guide slopes 31. Each clamping block 26 is slidably connected to the two track rods 25.

[0037] A friction pad 28 is fixedly mounted on the inner side of each of the two clamping blocks 26, and a tension spring 27 is fixedly connected between one side of each of the two clamping blocks 26 and the fixing frame 20;

[0038] A pull rod 29 is fixedly mounted on one side of each clamping block 26 . Two movable slots 30 are provided on one side of the fixing frame 20 . The two pull rods 29 extend out of one side of the fixing frame 20 through the two movable slots 30 .

[0039] The working principle of the anti-reversal device for the coal mine belt conveyor according to the embodiment is as follows: the bottom of the carrier frame 1 and the H frame 9 are both fixedly installed with a concrete foundation, and the top of the conveyor belt 8 is driven to move to the left, and then the mined coal is introduced to the top of the conveyor belt 8. The upper bracket 22 rotates and supports the roller 24, and the roller 24 is used to make the middle part of the conveyor belt 8 concave downward, which can facilitate the transportation of the coal.

[0040] When the conveyor belt 8 is being transported, the bottom of the conveyor belt 8 is moved to the right along the inner side of the fixing frame 20, so that the conveyor belt 8 can drive the two clamping blocks 26 to move to the right, so that the two clamping blocks 26 are separated. When the conveyor belt 8 is reversed, the tension of the tension spring 27 is used to pull the clamping block 26 to the left, so that the two clamping blocks 26 are closed when moving to clamp and fix the conveyor belt 8. The conveyor belt 8 can be automatically clamped and fixed when reversed, and the clamping and fixation can be released when the conveyor belt 8 is transported normally, so as to facilitate the anti-reverse operation of the conveyor belt 8.

[0041] By clamping the U-shaped frame 13 on the front side of the H frame 9 and then rotating the fixing bolt 15 to fix the U-shaped frame 13, the fixing rod 16 can be easily installed and removed. By driving the sliding rod 18 to slide back and forth along the sliding sleeve 17, the fixing frame 20 is synchronously driven to move back and forth, and the fixing frame 20 can be easily clamped on the outside of the conveyor belt, which facilitates the installation and removal operations of the fixing frame 20 and has a simple structure.

[0042] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An anti-reverse device for a coal mine belt conveyor, comprising two supporting frames (1) and two intermediate frames (7) arranged on the supporting frames (1), characterized in that: The intermediate frame (7) is provided with a conveying component and an anti-reversal component; The conveying assembly includes a conveyor belt (8) that is transmission-connected to the inner sides of two intermediate frames (7), a plurality of connecting rods (21) are fixedly mounted on the tops of the two intermediate frames (7), and three rollers (24) are rotatably mounted on the tops of each connecting rod (21), and the outer ends of the two outer rollers (24) are inclined upward, and the rollers (24) are located on the inner sides of the conveyor belt (8) and provide rolling support for the conveyor belt (8); The anti-reversal component includes a plurality of H frames (9) fixedly mounted on the bottom of two intermediate frames (7), wherein the front side of one of the H frames (9) is fixedly connected to a U-shaped frame (13), the front side of the U-shaped frame (13) is fixedly mounted to a fixed rod (16), one end of the fixed rod (16) is slidably mounted to a slide rod (18), the rear end of the slide rod (18) is fixedly connected to a fixed frame (20), one side of the conveyor belt (8) extends to the inside of the fixed frame (20), two clamping blocks (26) are slidably mounted on the inside of the fixed frame (20), and the conveyor belt (8) extends to the inside of the two clamping blocks (26).

2. The anti-reverse device for a coal mine belt conveyor according to claim 1, characterized in that: Two bearing columns (2) are fixedly mounted on the top of the bearing frame (1), two supporting blocks (6) are fixedly connected to the tops of the two bearing columns (2), and the two intermediate frames (7) are respectively fixedly mounted on the tops of the two supporting blocks (6).

3. The anti-reverse device for a coal mine belt conveyor according to claim 1, characterized in that: The tops of the two carrier frames (1) are fixedly connected to driving rollers (3), both of which are located inside the conveyor belt (8) and provide rolling support for the conveyor belt (8). The top of the right carrier frame (1) is fixedly connected to a tensioning structure (4), which is located outside the conveyor belt (8) and provides rolling support for the conveyor belt (8). A driving device (11) is provided on the front or rear side of the two driving rollers (3).

4. The anti-reverse device for a coal mine belt conveyor according to claim 3, characterized in that: The front and rear sides of the intermediate frame (7) are both provided with a plurality of guardrails (5), and the plurality of guardrails (5) are fixedly connected to each other. Conveyor rollers (10) are rotatably mounted at both ends of the two intermediate frames (7), and the two conveyor rollers (10) are both located on the inner side of the conveyor belt (8) and provide rolling support for the conveyor belt (8).

5. The anti-reverse device for a coal mine belt conveyor according to claim 3, characterized in that: One side of the U-shaped frame (13) is threadedly connected to a plurality of fixing bolts (15), the U-shaped frame (13) and the H frame (9) are fixed via the fixing bolts (15), a plurality of reinforcing frames (14) are fixedly connected between the fixing rod (16) and the U-shaped frame (13), and a support roller (12) is rotatably installed on the inner side of each of the H frames (9), and the support roller (12) is located at the bottom of the conveyor belt (8) and provides rolling support for the conveyor belt (8).

6. The anti-reverse device for a coal mine belt conveyor according to claim 1, characterized in that: A sliding sleeve (17) is fixedly mounted on one end of the fixing rod (16), the sliding rod (18) is located inside the sliding sleeve (17) and is slidably connected to the sliding sleeve (17), a fixing knob (19) is threadedly connected to the top of the sliding sleeve (17), and the sliding rod (18) and the sliding sleeve (17) are fixed via the fixing knob (19).

7. The anti-reverse device for a coal mine belt conveyor according to claim 1, characterized in that: Each roller (24) is rotatably connected to the connecting rod (21) via two upper brackets (22), and an oblique rod (23) is fixedly connected between the outer upper bracket (22) and the connecting rod (21).

8. The anti-reverse device for a coal mine belt conveyor according to claim 1, characterized in that: The top and bottom of the inner wall of the fixing frame (20) are both provided with guide slopes (31), and two track rods (25) are fixedly mounted on the inner sides of the two guide slopes (31), and each of the clamping blocks (26) is slidably connected to the two track rods (25).

9. The anti-reverse device for a coal mine belt conveyor according to claim 1, characterized in that: A friction pad (28) is fixedly mounted on the inner sides of the two clamping blocks (26), and a tension spring (27) is fixedly connected between one side of the two clamping blocks (26) and the fixing frame (20).

10. The anti-reverse device for a coal mine belt conveyor according to claim 1, characterized in that: A pull rod (29) is fixedly mounted on one side of the two clamping blocks (26), and two movable slots (30) are provided on one side of the fixing frame (20). The two pull rods (29) extend out of one side of the fixing frame (20) through the two movable slots (30).

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