Cable sheath for coal mining machine
By designing a highly adaptable cable sheath structure, the problems of insufficient compatibility and poor wear resistance of existing coal mining machine cable sheaths have been solved, achieving flexible adaptation and improved wear resistance of the cable sheath.
Patent Information
- Application Number
- CN202520395311.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-07
AI Technical Summary
The existing cable sheaths for coal mining machines need to be cut according to the length of the cable body, which is not adaptable enough. They cannot be used after the cable length is changed, and they lack wear-resistant structures, resulting in severe wear of the sheaths during coal mining.
A cable sheath comprising a cable body, a first protective tube, a limiting ring, a fixing structure, a protective structure, and an auxiliary structure is designed. By combining the limiting ring and the protective tube, it can adapt to changes in cable length, and the sliding ball bearings and protective plates can reduce wear caused by friction and impact.
It achieves flexible adaptation of cable sheaths, can adapt to changes in cable length, reduces sheath wear, and improves service life and wear resistance.
Smart Images
Figure CN223858809U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cable sheath technical field of coal mining machine, especially relate to a cable sheath for coal mining machine. BACKGROUND
[0002] Coal mining machine is one of main equipment of fully mechanized complete equipment, and the coal mining machine is developed 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 the fault occurs, the whole coal mining work will be interrupted, and great economic loss will be caused. The coal mining machine is one of important equipment for realizing coal mine production mechanization and modernization. The mechanized coal mining can reduce physical labor, improve safety, and achieve the purpose of high yield, high efficiency and low consumption. In the longwall coal mining working face, the coal mining machine is used to break the coal from the coal body (break coal) and load into the working face conveyor (load coal) according to the predetermined traction speed (traction), so that the break coal and load coal processes can be continuously carried out.
[0003] The cable sheath of the existing coal mining machine needs to be cut according to the length of the cable body, and the adaptability to the cable body is insufficient. Once the cable length is changed, the cable sheath cannot be used continuously. The existing cable sheath for coal mining machine does not have a wear-resistant structure. Since the cable is subjected to a large friction force during coal mining, the sheath will be worn out quickly. UTILITY MODEL CONTENT
[0004] The utility model solves the technical problem that the cable sheath of the existing coal mining machine needs to be cut according to the length of the cable body, and the adaptability to the cable body is insufficient. Once the cable length is changed, the cable sheath cannot be used continuously. The existing cable sheath for coal mining machine does not have a wear-resistant structure. Since the cable is subjected to a large friction force during coal mining, the sheath will be worn out quickly.
[0005] In order to solve the above technical problems, the utility model discloses a cable sheath for coal mining machine, which comprises a cable body, a first protective tube is sleeved on the outer wall surface of the cable body, a plurality of limiting rings are sleeved on the outer wall surface of the first protective tube, a fixing structure is sleeved on the outer wall surface of the first protective tube, a protective structure is sleeved on the outer wall surface of the fixing structure, and an auxiliary structure is sleeved on the two end surfaces of the cable body.
[0006] As a further scheme of the utility model, the fixing structure comprises a second protective tube, a plurality of supporting frames, a plurality of ball sleeves and a plurality of sliding balls. The second protective tube is sleeved on the outer wall surface of the cable body and is limited between the plurality of limiting rings. The plurality of supporting frames are respectively installed on the outer wall surface of the second protective tube. The plurality of ball sleeves are respectively installed on the plurality of supporting frames. The plurality of sliding balls are respectively installed in the plurality of ball sleeves.
[0007] As a further scheme of the utility model: the protection structure includes: a plurality of first protection board, a plurality of second protection board, a plurality of protection positioning frame, a plurality of protection locking frame and a plurality of protection locking column, a plurality of first protection board is respectively installed in the outer wall surface of a plurality of ball sleeve, and is connected with a plurality of support frame, a plurality of second protection board is respectively installed in the outer wall surface of a plurality of ball sleeve, and is connected with a plurality of support frame, a plurality of protection positioning frame is respectively installed in the front wall surface of a plurality of second protection board, a plurality of protection locking frame is respectively installed in the rear wall surface of a plurality of first protection board, a plurality of protection locking column is respectively installed in the inner wall surface of a plurality of protection locking frame.
[0008] As a further scheme of the utility model: the auxiliary structure includes: two locking sleeves, two auxiliary sleeves, two auxiliary positioning frames, two auxiliary locking frames and two auxiliary locking columns, two locking sleeves are respectively installed in the two end surfaces of cable body, two auxiliary sleeves are respectively installed in the outer wall surface of two locking sleeves, two auxiliary positioning frames are respectively installed in the rear wall surface of one of locking sleeves, two auxiliary locking frames are respectively installed in the front wall surface of one of locking sleeves, and two auxiliary locking columns are respectively installed in the inner wall surface of two auxiliary locking frames.
[0009] As a further scheme of the utility model: the first protection pipe adopts a flexible pipe, which can be bent together with the cable body.
[0010] As a further scheme of the utility model: a plurality of first protection boards are provided with protection chamfers around.
[0011] As a further scheme of the utility model: there is a gap between a plurality of first protection boards and a plurality of second protection boards.
[0012] As a further scheme of the utility model: a plurality of limiting rings are respectively made of elastic materials.
[0013] The utility model adopts the above technical scheme, compared with the prior art, has the following advantages:
[0014] The first protection pipe drives a plurality of limiting rings to be sleeved on the cable body, then the first protection board and the second protection board are held, the second protection pipe is inserted into the first protection pipe, then the second group of second protection pipes is rotated by ninety degrees along the first group of second protection pipes, then the two protection locking frames are moved, the two protection locking columns are inserted into the protection positioning frame, and the cycle is repeated, which solves the problem that the cable sheath of the existing coal mining machine needs to be cut according to the length of the cable body, and the adaptability to the cable body is insufficient, and once the cable length changes, the cable sheath cannot be used continuously.
[0015] The first protective pipe can bend along with the cable body, the corresponding protective locking column rotates around the protective positioning frame, when the cable body is rubbed, the sliding ball first contacts the friction surface and rotates around the ball sleeve according to the friction direction, when the cable body is impacted, the impact object first impacts the first protective plate or the second protective plate, the problem that the existing cable sheath for the coal mining machine has no wear-resistant structure, and the cable is rubbed by a large friction force during the coal mining, and the sheath is worn out is solved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a whole structure schematic view of a cable sheath for a coal mining machine in the embodiment of the utility model;
[0017] Figure 2 It is a fixed structure schematic view of a cable sheath for a coal mining machine in the embodiment of the utility model;
[0018] Figure 3 It is a protective structure schematic view of a cable sheath for a coal mining machine in the embodiment of the utility model;
[0019] Figure 4 It is an auxiliary structure schematic view of a cable sheath for a coal mining machine in the embodiment of the utility model.
[0020] In the drawing: 1, cable body;2, first protective pipe;3, limiting ring;4, second protective pipe;5, support frame;6, ball sleeve;7, sliding ball;8, first protective plate;9, second protective plate;10, protective positioning frame;11, protective locking frame;12, protective locking column;13, locking sleeve;14, auxiliary sleeve;15, auxiliary positioning frame;16, auxiliary locking frame;17, auxiliary locking column. DETAILED DESCRIPTION
[0021] The specific embodiments of the utility model will be further described below in combination with the drawings. It needs to be explained here that the description of these embodiments is used to help understanding the utility model, but does not constitute the limitation to the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.
[0022] Please refer to Figures 1-4 A cable sheath for a coal mining machine, comprising a cable body 1, the outer wall surface of the cable body 1 is sleeved with a first protective pipe 2, the outer wall surface of the first protective pipe 2 is sleeved with a plurality of limiting rings 3, the outer wall surface of the first protective pipe 2 is sleeved with a fixed structure, the outer wall surface of the fixed structure is sleeved with a protective structure, and the two end surfaces of the cable body 1 are sleeved with an auxiliary structure.
[0023] Please refer to Figure 2The fixing structure comprises: a second protective tube 4, a plurality of support frames 5, a plurality of ball sleeves 6 and a plurality of sliding balls 7; the second protective tube 4 is sleeved on the outer wall surface of the cable body 1 and is limited between the plurality of limiting rings 3; the plurality of support frames 5 are respectively installed on the outer wall surface of the second protective tube 4; the plurality of ball sleeves 6 are respectively installed on the plurality of support frames 5; and the plurality of sliding balls 7 are respectively installed in the plurality of ball sleeves 6.
[0024] Please refer to Figure 3 The protective structure comprises: a plurality of first protective plates 8, a plurality of second protective plates 9, a plurality of protective positioning frames 10, a plurality of protective locking frames 11 and a plurality of protective locking columns 12; the plurality of first protective plates 8 are respectively sleeved on the outer wall surface of the plurality of ball sleeves 6 and are connected with the plurality of support frames 5; the plurality of second protective plates 9 are respectively sleeved on the outer wall surface of the plurality of ball sleeves 6 and are connected with the plurality of support frames 5; the plurality of protective positioning frames 10 are respectively installed on the front wall surface of the plurality of second protective plates 9; the plurality of protective locking frames 11 are respectively installed on the rear wall surface of the plurality of first protective plates 8; and the plurality of protective locking columns 12 are respectively installed on the inner wall surface of the plurality of protective locking frames 11.
[0025] Please refer to Figure 4 The auxiliary structure comprises: two locking sleeves 13, two auxiliary sleeves 14, two auxiliary positioning frames 15, two auxiliary locking frames 16 and two auxiliary locking columns 17; the two locking sleeves 13 are respectively sleeved on the two end surfaces of the cable body 1; the two auxiliary sleeves 14 are respectively sleeved on the outer wall surface of the two locking sleeves 13; the two auxiliary positioning frames 15 are respectively installed on the rear wall surface of one of the locking sleeves 13; the two auxiliary locking frames 16 are respectively installed on the front wall surface of one of the locking sleeves 13; and the two auxiliary locking columns 17 are respectively installed on the inner wall surface of the two auxiliary locking frames 16.
[0026] Please refer to Figure 2 The first protective tube 2 is a flexible tube and can be bent together with the cable body 1; in use, the first protective tube 2 can be bent together with the cable body 1, and the corresponding protective locking column 12 rotates around the protective positioning frame 10.
[0027] Please refer to Figure 3 The plurality of first protective plates 8 are provided with protective chamfers around; in use, the protective chamfers can prevent the operator from scratching hands when installing the second protective tube 4.
[0028] Please refer to Figure 3 There is a gap between the plurality of first protective plates 8 and the plurality of second protective plates 9; in use, because of the gap, when impacted, the plurality of first protective plates 8 and the plurality of second protective plates 9 will slightly deform to offset the impact force.
[0029] Please refer to Figure 2If the second protective tube 4 is inserted into the first protective tube 2, the limiting ring 3 is deformed by force when passing through the limiting ring 3, until the second protective tube 4 reaches between the two limiting rings 3, and the limiting ring 3 resets to limit the second protective tube 4.
[0030] In the embodiment, the first protective tube 2 drives the limiting ring 3 to be sleeved on the cable body 1, then the first protective plate 8 and the second protective plate 9 are held, the second protective tube 4 is inserted into the first protective tube 2, then the second group of second protective tubes 4 is rotated by ninety degrees along the first protective tube 2, then the two protective locking frames 11 are moved to drive the two protective locking columns 12 to be inserted into the protective positioning frame 10, and the cycle is repeated.
[0031] Specifically, during installation, the operator drives the first protective tube 2 to sleeve the limiting ring 3 on the cable body 1, then holds the first protective plate 8 and the second protective plate 9, inserts the second protective tube 4 into the first protective tube 2, deforms the limiting ring 3 by force when passing through the limiting ring 3, until the second protective tube 4 reaches between the two limiting rings 3, and the limiting ring 3 resets to limit the second protective tube 4. When inserting, a lubricant can be applied on the limiting ring 3 to facilitate the insertion of the second protective tube 4, then the second group of second protective tubes 4 is rotated by ninety degrees along the first protective tube 2, then the two protective locking frames 11 are moved to drive the two protective locking columns 12 to be inserted into the protective positioning frame 10, and the cycle is repeated, finally the two locking sleeves 13 drive the two auxiliary sleeves 14 to be inserted into the two ends of the cable body 1, the two auxiliary locking frames 16 are moved again to drive the two auxiliary locking columns 17 to be inserted into the corresponding protective positioning frame 10, the two auxiliary positioning frames 15 are sleeved into the corresponding protective locking column 12, and the installation is completed.
[0032] In the embodiment, the first protective tube 2 can be bent with the cable body 1, and the corresponding protective locking column 12 rotates around the protective positioning frame 10. When the cable body 1 is rubbed, the sliding ball 7 first contacts the friction surface and rotates around the ball sleeve 6 according to the friction direction. When the cable body 1 is hit, the impact object first hits the first protective plate 8 or the second protective plate 9.
[0033] Specifically, in use, the first protective tube 2 can be bent along with the cable body 1, and the corresponding protective locking column 12 rotates around the protective positioning frame 10. When the cable body 1 is rubbed, the sliding balls 7 will first contact the rubbing surface, and rotate around the ball sleeves 6 according to the rubbing direction. When the cable body 1 is impacted, the impact object will first impact the first protective plates 8 or the second protective plates 9, and since there is a gap between the first protective plates 8 and the second protective plates 9, the first protective plates 8 and the second protective plates 9 will slightly deform when impacted, offsetting the impact force, and the support frames 5 support the first protective plates 8 and the second protective plates 9.
[0034] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.
Claims
1. A cable sheath for a coal mining machine, comprising a cable body (1), characterized in that, The outer wall surface of the cable body (1) is sleeved with a first protective pipe (2), the outer wall surface of the first protective pipe (2) is sleeved with a plurality of limiting rings (3), the outer wall surface of the first protective pipe (2) is sleeved with a fixing structure, the outer wall surface of the fixing structure is sleeved with a protective structure, and the two end surfaces of the cable body (1) are sleeved with auxiliary structures.
2. A cable shield for a coal mining machine according to claim 1, characterised in that, The fixing structure comprises a second protective pipe (4), a plurality of support frames (5), a plurality of ball sleeves (6), and a plurality of sliding balls (7). The second protective pipe (4) is sleeved on the outer wall surface of the cable body (1) and is limited between the plurality of limiting rings (3), the plurality of support frames (5) are respectively installed on the outer wall surface of the second protective pipe (4), the plurality of ball sleeves (6) are respectively installed on the plurality of support frames (5), and the plurality of sliding balls (7) are respectively installed in the plurality of ball sleeves (6).
3. A cable shroud for a coal mining machine according to claim 2, characterised in that, The protective structure comprises a plurality of first protective plates (8), a plurality of second protective plates (9), a plurality of protective positioning frames (10), a plurality of protective locking frames (11), and a plurality of protective locking columns (12). The plurality of first protective plates (8) are respectively sleeved on the outer wall surface of the plurality of ball sleeves (6) and are connected with the plurality of support frames (5), the plurality of second protective plates (9) are respectively sleeved on the outer wall surface of the plurality of ball sleeves (6) and are connected with the plurality of support frames (5), the plurality of protective positioning frames (10) are respectively installed on the front wall surface of the plurality of second protective plates (9), the plurality of protective locking frames (11) are respectively installed on the rear wall surface of the plurality of first protective plates (8), and the plurality of protective locking columns (12) are respectively installed on the inner wall surface of the plurality of protective locking frames (11).
4. A cable shield for a coal mining machine according to claim 1, characterised in that, The auxiliary structure comprises two locking sleeves (13), two auxiliary sleeves (14), two auxiliary positioning frames (15), two auxiliary locking frames (16), and two auxiliary locking columns (17). The two locking sleeves (13) are respectively sleeved on the two end surfaces of the cable body (1), the two auxiliary sleeves (14) are respectively sleeved on the outer wall surface of the two locking sleeves (13), the two auxiliary positioning frames (15) are respectively installed on the rear wall surface of one of the locking sleeves (13), the two auxiliary locking frames (16) are respectively installed on the front wall surface of one of the locking sleeves (13), and the two auxiliary locking columns (17) are respectively installed on the inner wall surface of the two auxiliary locking frames (16).
5. A cable shield for a coal mining machine according to claim 1, wherein, The first protective pipe (2) is a flexible pipe and can be bent together with the cable body (1).
6. A cable shroud for a coal mining machine according to claim 3, characterised in that, A plurality of protective chamfers are formed around the plurality of first protective plates (8).
7. A cable shroud for a coal mining machine according to claim 3, characterised in that, There is a gap between the plurality of first protective plates (8) and the plurality of second protective plates (9).
8. A cable shield for a coal mining machine according to claim 1, wherein, The plurality of limiting rings (3) are respectively made of elastic material.