Antiskid cable clamp for coal mining machine

Abstract

The utility model discloses an antiskid cable clamp for a coal mining machine, and belongs to the technical field of cable clamp plates. The device comprises a fixing plate and a U-shaped support fixedly arranged above the fixing plate, and two first through holes are symmetrically formed in the two sides of the U-shaped support; the upper clamping plate is connected to the top of an inner cavity of the U-shaped support, and a first clamping groove used for clamping a cable is formed in the outer wall of the upper clamping plate; the clamping wheel is correspondingly arranged below the upper clamping plate, and a second clamping groove used for clamping the cable is formed in the bottom wall of the clamping wheel; two buffering assemblies abutting against the upper clamping plate are symmetrically arranged on the rotating shaft. According to the utility model, the cable is clamped through the upper clamping plate and the clamping wheel, the outer wall of the rotating shaft is provided with the buffer assembly, and the clamping wheel cannot continuously rotate through the contact between the buffer assembly and the upper clamping plate, so that the antiskid function of the clamping plate is realized, and the buffer assembly plays a certain role in buffering, thereby effectively preventing the cable from being snapped.

Description

Technical Field

[0001] The utility model relates to the technical field of cable clamps, in particular to an anti-skid cable clamp for a coal mining machine. Background Art

[0002] The cable clamp for coal mining machine is made of nylon 66 with flame retardant and antistatic agent (nylon 66+flame retardant+antistatic agent) and injection molded with steel frame. According to the needs of the coal mining machine working surface, it is connected by pins or bolts to form a protective channel for protecting cables or water pipes. During the towing process, the cable is protected to work reliably and not broken or damaged, thereby reducing maintenance costs.

[0003] At present, in coal mines, the cables attached to the coal mining machines are generally fixed with clamps in the form of splints. When the coal mining machine works on a steep slope, due to the influence of the cable's own weight, the splint and the accumulated cables are easy to fall off, affecting the normal operation of the coal mining machine. In addition, ordinary cable splints in coal mines can only work on working surfaces with a smaller slope, do not have anti-slip capabilities, are more troublesome to install, and the cables are easy to slip in the splint and fall off from the splint.

[0004] For example, patent number CN 208738786 U discloses an anti-skid cable clamp for underground coal mining machines in a coal mine. By setting a first adjustment screw fixedly connected to the first clamp and setting a second adjustment screw fixedly connected to the second clamp, the clamp can be easily adjusted so that the clamp can clamp the cable, and two clamps are set, the fixing effect is better. However, the clamp does not have a buffering effect, and cannot effectively prevent the cable from being broken when it is impacted and stretched.

[0005] Therefore, it is necessary to develop an anti-skid cable clamp for coal mining machines in view of the above-mentioned defects. Utility Model Content

[0006] The utility model aims to provide an anti-skid cable clamp for a coal mining machine, so as to solve the problem that the clamping plate does not have a buffering effect and thus cannot effectively prevent the cable from being broken.

[0007] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0008] The utility model discloses an anti-skid cable clamp for a coal mining machine, comprising:

[0009] A fixing plate and a U-shaped bracket fixed on the fixing plate, wherein two first through holes are symmetrically provided on both sides of the U-shaped bracket;

[0010] An upper clamping plate connected to the top of the inner cavity of the U-shaped bracket, wherein the bottom wall of the upper clamping plate is provided with a first clamping groove for clamping the cable;

[0011] Corresponding to the clamping wheel arranged below the upper clamping plate, the outer wall of the clamping wheel is provided with a second clamping groove for clamping the cable in an annular shape;

[0012] A rotating shaft rotatably inserted into the two first through holes, the rotating shaft passes through the clamping wheel and is fixedly connected to the clamping wheel, and both ends of the rotating shaft are threadedly connected with limiting nuts for axial limiting;

[0013] Two buffer components abutting against the upper clamping plate are symmetrically arranged at both ends of the rotating shaft, and the buffer components can prevent the clamping wheel from rotating.

[0014] Furthermore, the buffer assembly includes:

[0015] a first shift rod rotatably connected to the rotating shaft via a bearing;

[0016] A second baffle rod fixedly connected to the rotating shaft, wherein the second baffle rod is arranged on a side of the first baffle rod away from the clamping wheel;

[0017] Two hanging ears are correspondingly arranged on one side of the first gear lever opposite to the second gear lever, and the two hanging ears are connected by a tension spring;

[0018] The upper clamping plate is located within an acute angle formed by the first baffle rod and the second baffle rod, and the first baffle rod and / or the second baffle rod abut against a bottom edge of the upper clamping plate.

[0019] Furthermore, the U-shaped bracket has two second through holes symmetrically formed on one side close to the upper clamping plate, and the two second through holes are both threadedly connected with a top screw, and the lower end of the top screw is tightly pressed against the upper wall of the upper clamping plate;

[0020] The U-shaped bracket is provided with limiting grooves symmetrically on both sides close to the upper clamping plate, and limiting blocks are symmetrically arranged on both sides of the upper clamping plate, and the limiting grooves are arranged in coordination with the limiting blocks.

[0021] Furthermore, the inner wall of the second slot is provided with an anti-slip cover.

[0022] Furthermore, the rotating shaft and the clamping wheel are coaxially arranged.

[0023] Furthermore, two fixing columns are arranged on the fixing plate, and the fixing columns are connected to the coal mining machine frame, and the two fixing columns are symmetrically arranged on both sides of the U-shaped bracket.

[0024] Furthermore, a plurality of barbs are arranged on the fixing column in a staggered manner.

[0025] The utility model has the following beneficial effects:

[0026] In the utility model, the cable is clamped by the upper clamping plate and the clamping wheel, and a buffer component is arranged on the outer wall of the rotating shaft. When the buffer component contacts the upper clamping plate, the clamping wheel cannot continue to rotate, and the rolling friction between the cable and the clamping wheel is changed into sliding friction, and the friction force is increased, thereby realizing the anti-slip function of the clamping plate, and the buffer component plays a certain buffering role, effectively preventing the cable from being broken. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model will be further described below in conjunction with the accompanying drawings.

[0028] Figure 1 It is a schematic diagram of the main cross-section of the utility model anti-skid cable clamp for coal mining machine;

[0029] Figure 2 It is a schematic diagram of the working state of the buffer component of the utility model.

[0030] Figure numerals: 1. U-shaped bracket; 2. upper clamping plate; 3. buffer assembly; 301. first gear lever; 302. second gear lever; 303. hanging ear; 304. tension spring; 4. limiting nut; 5. fixing plate; 6. fixing column; 7. rotating shaft; 8. clamping wheel; 9. first slot; 10. second slot; 11. cable; 12. top screw; 13. limiting slot; 14. limiting block. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] In a specific embodiment of the present invention, Figure 1-2 As shown, a non-slip cable clamp for a coal mining machine includes: a fixing plate 5 and a U-shaped bracket 1 fixed above the fixing plate 5; two fixing columns 6 are arranged on the fixing plate 5, and the fixing columns 6 are connected to the coal mining machine frame. The two fixing columns 6 are symmetrically arranged on both sides of the U-shaped bracket 1, and the fixing plate 5 is fixed to the wall by using the two fixing columns 6.

[0034] Two first through holes are symmetrically provided on both sides of the U-shaped bracket 1. An upper clamping plate 2 is movably connected to the top of the inner cavity of the U-shaped bracket 1, and a first clamping groove 9 for clamping the cable 11 is provided on the outer wall of the upper clamping plate 2; a clamping wheel 8 is provided under the upper clamping plate 2, and a second annular clamping groove 10 for clamping the cable 11 is provided on the bottom wall of the clamping wheel 8, and an anti-slip sleeve is provided on the inner wall of the second clamping groove 10.

[0035] A rotating shaft 7 is rotatably inserted in the two first through holes, and the rotating shaft 7 passes through the clamping wheel 8 and is fixedly connected to the clamping wheel 8. Both ends of the rotating shaft 7 are threadedly connected with limit nuts 4 for axial limiting. Two buffer components 3 abutting against the upper clamping plate 2 are symmetrically arranged on the rotating shaft 7. The buffer components 3 can prevent the clamping wheel 8 from rotating. At the same time, the buffer components 3 play a certain buffering role, which effectively prevents the cable 11 from being broken.

[0036] Compared with the prior art, in the utility model, the cable 11 is clamped by the upper clamping plate 2 and the clamping wheel 8, and a buffer component 3 is provided on the outer wall of the rotating shaft 7. When the buffer component 3 contacts the upper clamping plate 2, the clamping wheel 8 cannot continue to rotate, and the rolling friction between the cable 11 and the clamping wheel 8 is changed into sliding friction, and the friction force is increased, thereby realizing the anti-slip function of the clamping plate.

[0037] In a specific embodiment of the present invention, Figure 1-2 As shown, two second through holes are symmetrically opened on one side of the U-shaped bracket 1 close to the upper clamping plate 2, and the two second through holes are both threadedly connected with a top screw 12, and the lower end of the top screw 12 is tightly pressed against the upper wall of the upper clamping plate 2;

[0038] Limiting grooves 13 are symmetrically arranged on both sides of the U-shaped bracket 1 near the upper clamping plate 2, and limiting blocks 14 are symmetrically arranged on both sides of the upper clamping plate 2. The width of the limiting grooves 13 matches the width of the limiting blocks 14, so that the limiting blocks 14 can slide vertically in the limiting grooves 13 while avoiding left and right shaking of the limiting blocks 14.

[0039] Compared with the prior art, in the present invention, the top screw 12 can be used to always tighten the upper clamping plate 2, so that the first clamping groove 9 and the second clamping groove 10 always clamp the cable 11.

[0040] In a specific embodiment of the present invention, Figure 1-2 As shown, the buffer component 3 includes:

[0041] A first baffle rod 301 is rotatably connected to the rotating shaft 7 via a bearing; and a second baffle rod 302 is fixedly connected to the rotating shaft 7 , wherein the second baffle rod 302 is arranged on a side of the first baffle rod 301 away from the clamping wheel 8 .

[0042] Two ears 303 are correspondingly arranged on the side opposite to the first gear rod 301 and the second gear rod 302, and the two ears 303 are connected by a tension spring 304; the upper clamp plate 2 is located in the acute angle formed by the first gear rod 301 and the second gear rod 302, and the first gear rod 301 and / or the second gear rod 302 abuts against the bottom edge of the upper clamp plate 2.

[0043] In this embodiment, the hanging ear 303 is an outwardly protruding structure, which can be hung with the hook on the tension spring 304 without falling off.

[0044] Compared with the prior art, the present invention clamps the cable 11 through the upper clamping plate 2 and the clamping wheel 8, and the first stopper 301 or the second stopper 302 contacts the upper clamping plate 2. When the tension spring 304 is in the limit position, the clamping wheel 8 cannot continue to rotate, and the rolling friction between the cable 11 and the clamping wheel 8 changes to sliding friction, and the friction force increases, thereby realizing the anti-slip function of the clamping plate. At the same time, the tension spring 304 plays a certain buffering role, effectively preventing the cable 11 from being broken.

[0045] In a specific embodiment of the present invention, Figure 1 As shown, the rotating shaft 7 and the clamping wheel 8 are coaxially arranged to enhance the overall coordination.

[0046] In a specific embodiment of the present invention, Figure 1 As shown, a plurality of barbs are arranged in a staggered manner on the fixing column 6 , thereby enhancing the stability of the fixing plate 5 .

[0047] When the utility model is in use, the upper clamping plate 2 and the clamping wheel 8 clamp the cable 11 , and at this time, a certain gap is maintained between the first blocking rod 301 and the second blocking rod 302 and the upper clamping plate 2 .

[0048] When the cable 11 slides to the left, the clamping wheel 8 is driven to rotate to the left, and the clamping wheel 8 drives the rotating shaft 7 to rotate to the left. The first stopper 301 rotates to the left along with the rotating shaft 7 for a certain distance and then contacts the upper clamping plate 2. As the rotating shaft 7 continues to rotate to the left, the first stopper 301 squeezes the upper clamping plate 2, and the tension spring 304 is in a stretched state. When the tension spring 304 reaches the limit position, the rotating shaft 7 and the clamping wheel 8 stop rotating.

[0049] At this time, when the cable 11 slides to the right, it drives the clamping wheel 8 to rotate to the right, and the clamping wheel 8 drives the rotating shaft 7 to rotate to the right, the first gear rod 301 separates from the upper clamping plate 2, and the tension spring 304 returns to normal state. When the second gear rod 302 squeezes the upper clamping plate 2, the clamping wheel 8 stops rotating.

[0050] In summary, the rolling friction between the cable 11 and the clamping wheel 8 is changed into sliding friction, and the friction force is increased, thereby achieving the anti-slip function of the clamping plate.

[0051] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0052] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A non-slip cable clamp for a coal mining machine, characterized in that: include: A fixing plate (5) and a U-shaped bracket (1) fixedly arranged above the fixing plate (5), wherein two first through holes are symmetrically provided on two sides of the U-shaped bracket (1); An upper clamping plate (2) connected to the top of the inner cavity of the U-shaped bracket (1), wherein the bottom wall of the upper clamping plate (2) is provided with a first clamping groove (9) for clamping the cable (11); A clamping wheel (8) is correspondingly arranged below the upper clamping plate (2), and an outer wall of the clamping wheel (8) is provided with a second annular clamping groove (10) for clamping a cable (11); a rotating shaft (7) rotatably inserted into the two first through holes, the rotating shaft (7) passing through the clamping wheel (8) and being fixedly connected to the clamping wheel (8), and both ends of the rotating shaft (7) being threadedly connected with limit nuts (4) for axial limit; Two buffer components (3) abutting against the upper clamping plate (2) are symmetrically arranged at both ends of the rotating shaft (7), and the buffer components (3) can prevent the clamping wheel (8) from rotating.

2. The anti-slip cable clamp for coal mining machine according to claim 1, characterized in that: The buffer component (3) comprises: A first stopper (301) rotatably connected to the rotating shaft (7) via a bearing; a second baffle rod (302) fixedly connected to the rotating shaft (7), the second baffle rod (302) being arranged on a side of the first baffle rod (301) away from the clamping wheel (8); Two hanging ears (303) are correspondingly arranged on one side of the first blocking rod (301) opposite to the second blocking rod (302), and the two hanging ears (303) are connected via a tension spring (304); The upper clamping plate (2) is located within an acute angle formed by the first baffle rod (301) and the second baffle rod (302), and the first baffle rod (301) and / or the second baffle rod (302) abut against the bottom edge of the upper clamping plate (2).

3. The anti-slip cable clamp for coal mining machine according to claim 1, characterized in that: The U-shaped bracket (1) has two second through holes symmetrically formed on one side close to the upper clamping plate (2), and the two second through holes are both threadedly connected with a top screw (12), and the lower end of the top screw (12) is tightly pressed against the upper wall of the upper clamping plate (2); The U-shaped bracket (1) is provided with symmetrical limit grooves (13) on both sides close to the upper clamping plate (2), and limit blocks (14) are symmetrically arranged on both sides of the upper clamping plate (2), and the limit grooves (13) and the limit blocks (14) are arranged in coordination.

4. The anti-slip cable clamp for coal mining machine according to claim 1, characterized in that: The inner wall of the second slot (10) is provided with an anti-slip sleeve.

5. The anti-slip cable clamp for coal mining machine according to claim 1, characterized in that: The rotating shaft (7) and the clamping wheel (8) are coaxially arranged.

6. The anti-slip cable clamp for coal mining machine according to claim 1, characterized in that: Two fixing columns (6) are arranged on the fixing plate (5), and the fixing columns (6) are connected to the coal mining machine frame. The two fixing columns (6) are symmetrically arranged on both sides of the U-shaped bracket (1).

7. The anti-slip cable clamp for coal mining machine according to claim 6, characterized in that: The fixing column (6) is provided with a plurality of barbs in a staggered manner.

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