Cable protection device for coal mining machine

Abstract

The utility model discloses a coal mining machine cable protection device, which relates to the technical field of coal mining machines and comprises an outer sleeve, an inserting ring is fixedly mounted on the left side of the outer surface of the outer sleeve, positioning holes are uniformly distributed in the outer circular surface of the inserting ring, and a connecting ring is fixedly mounted at the right end of the outer surface of the outer sleeve. An inserting groove is formed in the right side of the surface of the connecting ring, the shape of the inserting groove is an annular groove, tension springs are evenly distributed and fixedly installed on the outer surface of the connecting ring, and bolts are fixedly installed at the ends, away from the connecting ring, of the tension springs. Compared with an existing common coal mining machine cable protection device, the coal mining machine cable protection device has the advantages that the whole protection device can be lengthened and spliced according to coal mining machine cables with different lengths, so that the cable protection device adapts to coating protection of the cables with different lengths, and the use flexibility and adaptability of the protection device are greatly improved; and the splicing and the dismounting are very simple and convenient, and the practicability is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coal mining machine technical field, concretely is a coal mining machine cable protection device. BACKGROUND

[0002] The coal mining machine is one of main equipment of fully mechanized mining complete equipment, and the coal mining machine is developed and evolved from the coal cutter. The coal mining machine is a large complex system integrating machinery, electricity and hydraulic pressure, and the working environment is very bad. If a fault occurs, the whole coal mining work will be interrupted, and great economic losses will be caused.

[0003] In the prior art, the movable cable protection on the cable groove is all a hard steel plate to prevent the damage of the cable by the coal blocks and other objects in the external environment. However, the length of the steel plate is limited, and the steel plate needs to be welded to be extended to cope with the cables of different lengths, and the extension mode is relatively inconvenient.

[0004] For example, the publication with the application number 202221849095.0 discloses a coal mining machine cable protection device. The utility model can protect the cable and ensure the safety of the cable. However, the coal mining machine cable protection device is not convenient for extension according to the cables of different lengths, the protection distance is extended by the common use of multiple protection mechanisms, and effective connection is not provided between the protection mechanisms, which affects the protection stability.

[0005] Therefore, in view of the above problems, the existing structure is improved, and a coal mining machine cable protection device is provided. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a coal mining machine cable protection device to solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a coal mining machine cable protection device, comprising an outer sleeve, a spigot ring is fixedly installed on the outer surface left side of the outer sleeve, positioning holes are uniformly distributed on the outer circular surface of the spigot ring, a connecting ring is fixedly installed on the outer surface right end of the outer sleeve, a slot is formed on the surface right side of the connecting ring, the shape of the slot is set as a ring groove, tension springs are fixedly installed on the outer surface of the connecting ring, a plug is fixedly installed on the end of the tension spring away from the connecting ring, the plug is slidably penetrated through the connecting ring and located in the slot, and the surface right side of the end of the plug located in the slot is set as an inclined surface.

[0008] Preferably, the inner diameter of the connecting ring is the same as the opening diameter of the outer sleeve, and the inner diameter of the spigot ring is greater than the opening diameter of the outer sleeve.

[0009] Preferably, the plug-in ring is matched with the slot in size, and the installation position of the plug-in ring horizontally corresponds to the opening position of the slot.

[0010] Preferably, the inner surface of the outer sleeve is uniformly provided with fixedly installed reinforcing ribs, and the reinforcing ribs are arranged as annular plates.

[0011] Preferably, the inner surface of the outer sleeve is uniformly provided with fixedly installed reinforcing ribs, and the reinforcing ribs are arranged as annular plates.

[0012] Preferably, the inner surface of the outer sleeve is uniformly provided with fixedly installed reinforcing ribs, and the reinforcing ribs are arranged as annular plates.

[0013] Preferably, the inner surface of the outer sleeve is uniformly provided with fixedly installed reinforcing ribs, and the reinforcing ribs are arranged as annular plates.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The utility model discloses a plug-in ring, a positioning hole, a connecting ring, a slot, a tension spring and a bolt are arranged, the whole protection device is prolonged and spliced according to the coal mining machine cable of different lengths, thereby adapting to the cladding protection of different length cables, the flexibility and adaptability of the protection device are greatly improved, and the splicing and dismounting are extremely simple, and the practicality is stronger.

[0016] 2. The utility model discloses a plug-in ring, a positioning hole, a connecting ring, a slot, a tension spring and a bolt are arranged, the whole protection device is prolonged and spliced according to the coal mining machine cable of different lengths, thereby adapting to the cladding protection of different length cables, the flexibility and adaptability of the protection device are greatly improved, and the splicing and dismounting are extremely simple, and the practicality is stronger. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is the whole sectional structure schematic diagram of the utility model;

[0019] Figure 3 It is the plug-in ring and connecting ring structure schematic diagram of the utility model;

[0020] Figure 4 It is the whole assembly structure schematic diagram of the utility model.

[0021] In the drawing: 1, outer sleeve;2, plug-in ring;3, positioning hole;4, connecting ring;5, slot;6, tension spring;7, bolt;8, reinforcing rib;9, inner cylinder;10, rubber pad;11, ball. DETAILED DESCRIPTION

[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0023] As shown in Figures 1-4 A coal mining machine cable protection device, comprising an outer sleeve 1, the outer surface of the outer sleeve 1 is fixedly installed with a plug-in ring 2 on the left side, the outer circular surface of the plug-in ring 2 is uniformly distributed with a positioning hole 3, the outer surface of the outer sleeve 1 is fixedly installed with a connecting ring 4 at the right end, the surface of the connecting ring 4 is provided with a slot 5 on the right side, the shape of the slot 5 is set as a ring groove, the outer surface of the connecting ring 4 is uniformly distributed with a tension spring 6 fixedly installed, the end of the tension spring 6 away from the connecting ring 4 is fixedly installed with a latch 7, the end of the latch 7 away from the connection with the tension spring 6 is slidably penetrated through the connecting ring 4 inside the slot 5, and the surface of the end of the latch 7 inside the slot 5 is set as an inclined surface.

[0024] By adopting the above technical scheme, the plug-in ring 2 of one outer sleeve 1 is inserted into the slot 5 of the connecting ring 4 of another outer sleeve 1, so that the two outer sleeves 1, that is, the two protection devices, are connected;

[0025] When inserted, the plug-in ring 2 will push the latch 7 outward by using the inclined surface and stretch the tension spring 6, when the plug-in ring 2 is completely inserted into the slot 5, at this time, the latch 7 can correspond to the position of the positioning hole 3, if there is no correspondence, it is only necessary to rotate any one of the outer sleeves 1, so that the latch 7 corresponds to the positioning hole 3.

[0026] When the latch 7 is aligned with the positioning hole 3, the tension spring 6 will pull the latch 7 to move and reset it into the positioning hole 3, thereby locking the plug-in ring 2 and the connecting ring 4, so that the splicing position of the two outer sleeves 1 is fixed.

[0027] Further, the inner diameter of the connecting ring 4 is the same as the opening diameter of the outer sleeve 1, and the inner diameter of the plug-in ring 2 is greater than the opening diameter of the outer sleeve 1; the size of the plug-in ring 2 matches the slot 5, and the installation position of the plug-in ring 2 corresponds to the opening position of the slot 5 horizontally.

[0028] By adopting the above technical scheme, when splicing, it can be ensured that the diameters of the two outer sleeves 1 are horizontally opposite.

[0029] Further, the inner surface of the outer sleeve 1 is uniformly distributed with a reinforcing rib 8 fixedly installed, the reinforcing rib 8 is set as an annular plate; the inner circular surface of the reinforcing rib 8 is fixedly installed with the same inner sleeve 9, the left and right ends of the inner sleeve 9 are fixedly connected with the left and right sides of the inner surface of the outer sleeve 1, and the inner diameter of the inner sleeve 9 is the same as the opening diameter of the outer sleeve 1.

[0030] By adopting the technical scheme, the outer sleeve 1 and the inner sleeve 9 are double-coated, and the cable is double-protected. Even if the outer sleeve 1 is deformed or broken under pressure, the inner sleeve 9 can still coat and protect the cable.

[0031] The reinforcing ribs 8 reinforce and support the gap position between the outer sleeve 1 and the inner sleeve 9. When the outer sleeve 1 is concave and deformed due to collision, the reinforcing ribs 8 on both sides of the collision position can provide stable support, so that the maximum ductility of the outer sleeve 1 cannot completely contact the inner sleeve 9.

[0032] Further, the outer surface of the inner sleeve 9 is fixedly connected with the rubber pad 10, and the rubber pad 10 is located at each gap separated by the reinforcing ribs 8.

[0033] By adopting the technical scheme, when a sharp object pierces the outer sleeve 1 and enters the inside, it will first contact the rubber pad 10. The rubber buffer and adhesive force of the rubber pad 10 can slow down the object, reduce the impact of the object, and avoid the sharp object directly penetrating the inner sleeve 9 and piercing the cable.

[0034] Further, the inner surface of the inner sleeve 9 is uniformly distributed with the rolling ball 11, which is embedded in the inner wall of the inner sleeve 9 and protrudes towards the middle of the inner sleeve 9.

[0035] By adopting the technical scheme, the cable first contacts the rolling ball 11 in the inner sleeve 9, so that the cable can avoid friction between the cable and the inner sleeve 9.

[0036] Working principle: when using the coal mining machine cable protection device, first, according to the length of the cable to be protected, the plug-in ring 2 of one outer sleeve 1 is inserted into the insertion slot 5 of the connecting ring 4 of another outer sleeve 1. When inserted, the plug-in ring 2 will move outward by using the inclined surface push pin 7, and stretch the tension spring 6. When the plug-in ring 2 is completely inserted into the insertion slot 5, the insertion pin 7 can correspond to the position of the positioning hole 3 at this time. If there is no correspondence, only need to rotate any one outer sleeve 1, so that the insertion pin 7 corresponds to the positioning hole 3. When the insertion pin 7 is aligned with the positioning hole 3, the tension spring 6 will pull the insertion pin 7 to move and reset into the positioning hole 3, and then lock the plug-in ring 2 and the connecting ring 4, so as to firmly splice the two outer sleeves 1. Then the cable is stretched into the inner sleeve 9, which is double coated by the outer sleeve 1 and the inner sleeve 9, so as to double protect the cable. Even if the outer sleeve 1 is deformed or broken under pressure, the inner sleeve 9 can still protect the cable. The reinforcing rib 8 strengthens the gap between the outer sleeve 1 and the inner sleeve 9. When the outer sleeve 1 is deformed by collision, the reinforcing rib 8 on both sides of the collision position can provide stable support, so that the maximum ductility of the outer sleeve 1 cannot completely contact the inner sleeve 9. When the sharp object pierces the outer sleeve 1 and enters the inside, it will first contact the rubber pad 10. The rubber pad 10 can slow down the object by its own rubber buffer and viscosity, so as to reduce the impact of the object and avoid the sharp object piercing the inner sleeve 9 and the cable. The cable in the inner sleeve 9 first contacts the ball 11, so that the cable can avoid friction between the cable and the inner sleeve 9, so as to fully and effectively protect the cable. This is the working principle of the coal mining machine cable protection device.

Claims

1. A coal cutter cable guard comprising an outer sleeve (1) characterised in that, The outer surface left side of the outer sleeve (1) is fixedly installed with the plug-in ring (2), the outer circular surface of the plug-in ring (2) is uniformly provided with the positioning hole (3), the outer surface right end of the outer sleeve (1) is fixedly installed with the connecting ring (4), the surface right side of the connecting ring (4) is provided with the insertion slot (5), the shape of the insertion slot (5) is set as the ring groove, the outer surface of the connecting ring (4) is uniformly distributed and fixedly installed with the tension spring (6), one end of the tension spring (6) away from the connecting ring (4) is fixedly installed with the plug pin (7), the plug pin (7) away from the end connected with the tension spring (6) is slidably penetrated through the connecting ring (4) located in the insertion slot (5), the surface right side of the plug pin (7) located in the insertion slot (5) is set as the inclined surface.

2. A coal cutter cable guard according to claim 1 wherein, The inner diameter of the connecting ring (4) is same with the opening diameter of the outer sleeve (1), the inner diameter of the plug-in ring (2) is greater than the opening diameter of the outer sleeve (1).

3. A coal cutter cable guard according to claim 1 wherein, The size of the plug-in ring (2) is matched with the insertion slot (5), and the installation position of the plug-in ring (2) horizontally corresponds to the opening position of the insertion slot (5).

4. A coal cutter cable guard according to claim 1 wherein, The inner surface of the outer sleeve (1) is uniformly distributed and fixedly installed with the reinforcing rib (8), and the reinforcing rib (8) is set as the annular plate.

5. A coal cutter cable guard according to claim 4 wherein, The inner circular surface of the reinforcing rib (8) is fixedly installed with the same inner cylinder (9), the left and right ends of the inner cylinder (9) are fixedly connected with the inner surface left and right sides of the outer sleeve (1), and the inner diameter of the inner cylinder (9) is same with the opening diameter of the outer sleeve (1).

6. A coal cutter cable guard according to claim 5 wherein, The outer surface of the inner cylinder (9) is fixedly connected with the rubber pad (10), and the rubber pad (10) is located at each gap separated by the reinforcing rib (8).

7. A coal cutter cable guard according to claim 5 wherein, The inner surface of the inner cylinder (9) is uniformly distributed and rotatably installed with the ball (11), the ball (11) is embedded in the inner wall of the inner cylinder (9) and protrudes to the middle part of the inner cylinder (9).

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