Coal mine fully-mechanized mining electromechanical cable protection structure
By designing a protective structure consisting of components such as a bottom frame, top frame, reset spring, and threaded rod, the problems of water immersion and corner damage to cables in the humid environment of coal mines were solved, achieving stable cable fixation and extending service life.
Patent Information
- Application Number
- CN202520377906.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-06
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-06
AI Technical Summary
Existing fully mechanized coal mining cables cannot be effectively raised in humid environments, leading to water accumulation and damage at corners, and lack of stable fixing structures.
The protective structure consists of components such as a bottom frame, top frame, return spring, clamping plate, threaded rod, and self-tapping screws. The cable can be raised and fixed manually to prevent water immersion. At corners, the cable is fixed with a simple locking structure to prevent damage.
This effectively prevents cables from being soaked in water in humid environments and from being damaged at corners, improving the stability and service life of the cables and ensuring the safety of coal mine production.
Smart Images
Figure CN223871984U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable protection, and in particular to a protective structure for electrical cables of fully mechanized coal mining machinery. Background Technology
[0002] In the process of fully mechanized coal mining, cables serve as an important medium for transmitting electrical energy and signals, and their stability and safety are of paramount importance. Due to the complex environment of coal mines, cables are susceptible to various external impacts and damage, such as impacts from broken coal pieces and rocks, as well as long-term wear and aging. Therefore, effective protection of cables can not only extend their service life but also prevent safety accidents such as fires and explosions caused by cable faults, thereby protecting the lives of coal miners and ensuring the smooth operation of coal mine production.
[0003] The existing protective structure for the cables of fully mechanized coal mining machines typically uses ordinary rubber or plastic sheaths to wrap the cables, achieving waterproof and wear-resistant effects, and then wraps them with metal pipes to achieve impact resistance.
[0004] Then, due to the uneven ground inside the coal mine, puddles are prone to appear where the cable passes, causing the cable to be soaked in water for a long time, making it impossible to lift the cable and fix it at a certain height. Therefore, a protective structure for the fully mechanized coal mining cable is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a protective structure for the electrical cables of fully mechanized coal mining machines, which aims to improve the problem that the existing technology cannot raise the cables and fix them at a certain height.
[0006] To achieve the above objectives, this utility model adopts the following technical solution: a protective structure for the electrical cables of a fully mechanized coal mining machine, comprising a base frame, a top frame one hinged to the top left end of the base frame, and a top frame two hinged to the top right end of the base frame. The inner walls of both the top frame one and the top frame two are elastically connected to clamping plates via return springs. A sliding rod is fixedly connected to the back of each clamping plate. A sleeve is fixedly connected to the top of the base frame, and a vertical rod is slidably connected to the inner wall of the sleeve. A base is fixedly connected to the bottom of the vertical rod, and a counter-threaded rod is rotatably connected to the bottom support of the inner wall of the base. A threaded slider is threadedly connected to the inner side of the outer wall of the counter-threaded rod, and a connecting rod is hinged to the end of the threaded slider. A limit component is provided at the end of the counter-threaded rod.
[0007] As a further description of the above technical solution:
[0008] The inner wall of the bottom frame is threaded with a self-tapping bolt, and the inner wall of the self-tapping bolt is slidably connected with an extension rod, and the outer end of the extension rod is fixedly connected with a collar.
[0009] As a further description of the above technical solution:
[0010] The limiting component includes a limiting rod, the bottom end of which is fixedly connected to the outer end of the opposing threaded rod, the top end of which is elastically connected to a limiting frame via a limiting spring, a limiting block is fixedly connected to the top end of the outer wall of the limiting frame, and a limiting groove is formed on the outer wall of the base.
[0011] As a further description of the above technical solution:
[0012] One end of the reset spring is fixedly connected to the bottom of the inner wall of top frame one and top frame two, and the other end of the reset spring is fixedly connected to the back of the clamping plate. The outer wall of the slide rod is slidably connected to the inner wall of top frame one and top frame two.
[0013] As a further description of the above technical solution:
[0014] The outer wall of the sleeve is slidably connected to the inner wall of the base, the bottom of the threaded slider is slidably connected to the bottom of the inner wall of the base, and the top of the connecting rod is hinged to the bottom of the base frame.
[0015] As a further description of the above technical solution:
[0016] The outer wall of the collar is slidably connected to the inner wall of the outer side of the bottom frame.
[0017] As a further description of the above technical solution:
[0018] The outer wall of the limiting rod is slidably connected to the outer inner wall of the base. One end of the limiting spring is fixedly connected to the top of the limiting rod, and the other end of the limiting spring is fixedly connected to the top of the inner wall of the limiting frame.
[0019] As a further description of the above technical solution:
[0020] The inner wall of the limiting frame is slidably connected to the outer wall of the limiting rod, and the end of the limiting block is engaged with the inner wall of the limiting groove.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, by setting a bottom frame, connecting rod, base, threaded slide rod, opposing threaded rod, and limiting component, when the coal mine is relatively humid, the limiting frame is manually pulled to release the limiting block, and then the limiting frame is manually rotated to rotate the opposing threaded rod. The opposing threaded rod drives the threaded slider to retract inward, and then the threaded slider drives the connecting rod to make a fan-shaped inward movement, thereby raising the bottom frame to lift the electromechanical cables and prevent water from accumulating and soaking them.
[0023] 2. In this utility model, by setting a bottom frame, top frame one, top frame two, a return spring, a clamping plate, a sliding rod, a self-tapping bolt, an extension rod, and a collar, when protecting the corner of a coal mine tunnel, the top frame one and top frame two are opened by a simple locking structure, and then the cable is placed in the cable groove of the bottom frame to close the top frame one and top frame two. Then, the opposing squeezing force between the return spring and the inner walls of the top frame one and top frame two makes the clamping plate tightly fit the cable. Then, the extension rod is manually rotated to drive the self-tapping bolt to be inserted into the side wall of the mine tunnel, so that the structure is fixed and stable, thus avoiding damage to the cable from contact with the inner wall of the mine tunnel. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of the top frame one and top frame two of the protective structure for the electrical cables of a fully mechanized coal mining machine proposed in this utility model;
[0025] Figure 2 This is a two-section perspective view of the top frame of a protective structure for the electrical cables of a fully mechanized coal mining machine proposed in this utility model.
[0026] Figure 3 This is a three-dimensional cross-sectional view of the bottom frame of a protective structure for the electrical cables of a fully mechanized coal mining machine proposed in this utility model.
[0027] Figure 4 This is a three-dimensional schematic diagram of the connecting rod unfolded in the protective structure for the electrical cables of a fully mechanized coal mining machine proposed in this utility model;
[0028] Figure 5 This is a three-dimensional cross-sectional view of a self-tapping bolt for a protective structure of electrical cables in a fully mechanized coal mining machine, as proposed in this utility model.
[0029] Figure 6 This utility model proposes a protective structure for the electrical cables of fully mechanized coal mining machines. Figure 4 Enlarged 3D schematic diagram of part A.
[0030] Legend:
[0031] 1. Base frame; 2. Top frame one; 3. Top frame two; 4. Return spring; 5. Clamping plate; 6. Slide rod; 7. Sleeve; 8. Upright pole; 9. Base; 10. Connecting rod; 11. Threaded slider; 12. Opposing threaded rod; 13. Self-tapping screw; 14. Extension rod; 15. Collar; 16. Limiting rod; 17. Limiting spring; 18. Limiting frame; 19. Limiting block; 20. Limiting groove. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figures 1-3 This utility model provides an embodiment of a protective structure for the electrical cables of a fully mechanized coal mining machine, comprising a base frame 1, which is configured as a right-angled L-shape for placement at a corner of the coal mine. A top frame 2 is hinged to the top left end of the base frame 1. The top frame 2 is a single-sided long cover plate for covering and protecting the cable on one side. A top frame 3 is hinged to the top right end of the base frame 1. The top frame 3 is a single-sided short cover plate for covering and protecting the cable on the other side. The inner walls of the top frame 2 and the top frame 3 are elastically connected to clamping plates 5 by return springs 4. Several sets of clamping plates 5 are provided, and the clamping surface is arc-shaped, which is used to adaptively clamp cables of different sizes and keep them fixed by the return springs 4. A sliding rod 6 is fixedly connected to the back of the clamping plate 5. The sliding rod 6 is used to slide on the inner walls of the top frame 2 and the top frame 3 to keep the clamping plate 5 moving stably and to avoid damage to the cable caused by the clamping plate 5 under force.
[0034] Reference Figures 2-4 A sleeve 7 is fixedly connected to the top of the base frame 1. A vertical rod 8 is slidably connected to the inner wall of the sleeve 7. The sleeve 7 is used to slide on the outer wall of the vertical rod 8 to keep the base frame 1 stable and move up and down. A base 9 is fixedly connected to the bottom of the vertical rod 8. The base 9 is used to place the mine floor and provide support for the base frame 1. Opposing threaded rods 12 are rotatably connected to the bottom support of the inner wall of the base 9. Opposing threaded rods 12 are used to drive two sets of threaded sliders 11 to move in opposite directions at the same time. Threaded sliders 11 are threadedly connected to the inner side of the outer wall of the opposing threaded rods 12. There are two sets of threaded sliders 11, which are used to move in opposite directions and simultaneously unfold two sets of connecting rods 10. Connecting rods 10 are hinged to the ends of the threaded sliders 11. There are two sets of connecting rods 10, which are located at the center of the corner and are used to pass through the threaded... The slider 11 drives the two sets of connecting rods 10 to unfold outward, thereby lifting the bottom frame 1 upward. A limit component is provided at the end of the opposing threaded rod 12. One end of the return spring 4 is fixedly connected to the bottom of the inner wall of the top frame 2 and the top frame 3, and the other end of the return spring 4 is fixedly connected to the back of the clamping plate 5. Through the opposing pressing force between the return spring 4 and the inner wall of the top frame 2 and the top frame 3, the clamping plate 5 is kept in contact with the cable and in a clamping state without being affected by external force. The outer wall of the slide rod 6 is slidably connected to the inner wall of the top frame 2 and the top frame 3. The outer wall of the sleeve 7 is slidably connected to the inner wall of the base 9. The bottom of the threaded slider 11 is slidably connected to the bottom of the inner wall of the base 9. The top of the connecting rod 10 is hinged to the bottom of the bottom frame 1.
[0035] Reference Figures 3-5The inner wall of the bottom frame 1 is threaded with a self-tapping bolt 13. The front end of the self-tapping bolt 13 is provided with a self-tapping thread, which is used to insert into the mine wall to fix the structure position and prevent the structure from deviating from the protective position due to force. The inner wall of the self-tapping bolt 13 is slidably connected with an extension rod 14. The extension rod 14 is arranged in a cross shape, which is used to drive the self-tapping bolt 13 to rotate while sliding on the inner wall of the self-tapping bolt 13. The outer end of the extension rod 14 is fixedly connected with a collar 15. The collar 15 is used to keep the extension rod 14 rotating in a fixed position. The outer wall of the collar 15 is slidably connected to the outer inner wall of the bottom frame 1.
[0036] Reference Figures 4-6 The limiting assembly includes a limiting rod 16, which extends the opposing threaded rod 12. An directional block is provided on the outer wall of the limiting frame 18, allowing the limiting rod 16 to rotate while also sliding on its outer wall. The bottom end of the limiting rod 16 is fixedly connected to the outer end of the opposing threaded rod 12. The top end of the limiting rod 16 is elastically connected to the limiting frame 18 via a limiting spring 17. A grip knob is provided on the outer wall of the limiting frame 18 for manual release of the limiting position, facilitating manual operation. Four limiting blocks 19 are fixedly connected to the top of the outer wall of the limiting frame 18, used for multi-directional engagement with the limiting groove 20 to fix the opposing threaded rod 12 and keep it stationary. The base... A limiting groove 20 is provided on the outer side wall of the base 9. Several sets of limiting grooves 20 are provided for multiple locking limiting blocks 19 to change the height of the base frame 1. The outer wall of the limiting rod 16 passes through and is slidably connected to the outer inner wall of the base 9. One end of the limiting spring 17 is fixedly connected to the top of the limiting rod 16, and the other end of the limiting spring 17 is fixedly connected to the top of the inner wall of the limiting frame 18. Through the opposing pressing force between the limiting spring 17 and the limiting rod 16, the limiting block 19 is always locked on the inner wall of the limiting groove 20 without being affected by external force. The inner wall of the limiting frame 18 is slidably connected to the outer wall of the limiting rod 16, and the end of the limiting block 19 is locked on the inner wall of the limiting groove 20.
[0037] Working principle: When the coal mine is relatively humid, the limiting frame 18 is manually pulled to disengage the limiting block 19 from the limiting groove 20, thus releasing the limiting. Then, the limiting frame 18 is rotated to rotate the limiting rod 16, which in turn rotates the opposing threaded rod 12. The opposing threaded rod 12 then drives the threaded slider 11 to slide outward. The threaded slider 11 then drives the connecting rod 10 to make a fan-shaped unfolding motion along the bottom hinge of the bottom frame 1, thereby raising the bottom frame 1 and raising the cable to a certain height. Then, the limiting frame 18 is pushed inward to engage the limiting block 19 into the corresponding limiting groove 20, thus achieving cable height adjustment and preventing water accumulation from soaking the cable and causing damage.
[0038] Because the geology and layout of coal mine tunnels prevent straight-through cabling, cables often scrape against the walls at corners, making it impossible to protect multiple cables together. This can lead to cable entanglement or damage. To protect the corners of coal mine tunnels, a simple locking mechanism is used to open top frame 1 (2) and top frame 2 (3). The cables are then placed in the cable tray of bottom frame 1, and top frame 1 (2) and top frame 2 (3) are closed. Simultaneously, the opposing pressure between the return spring 4 and the inner walls of top frame 1 (2) and top frame 2 (3) ensures that the clamping plate 5 tightly adheres to the cables and maintains a clamped state. Then, the extension rod 14 is manually rotated to rotate the self-tapping screw 13. The self-tapping screw 13 is inserted into the mine wall, fixing and stabilizing the protective structure and preventing damage to the cables from contacting the mine wall.
[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A protective structure for electrical cables of fully mechanized coal mining machines, comprising a base frame (1), characterized in that: The bottom frame (1) is hinged to the top left end of the top frame one (2), and the bottom frame (1) is hinged to the top right end of the top frame two (3). The inner walls of the top frame one (2) and the top frame two (3) are elastically connected to the clamps (5) by the return springs (4). The back of the clamps (5) is fixedly connected to the slide rod (6). The top of the bottom frame (1) is fixedly connected to the sleeve (7). The inner wall of the sleeve (7) is slidably connected to the upright (8). The bottom of the upright (8) is fixedly connected to the base (9). The bottom bracket of the inner wall of the base (9) is rotatably connected to the opposing threaded rod (12). The inner side of the outer wall of the opposing threaded rod (12) is threadedly connected to the threaded slider (11). The end of the threaded slider (11) is hinged to the connecting rod (10). The end of the opposing threaded rod (12) is provided with a limit component.
2. The protective structure for electrical cables of fully mechanized coal mining machines according to claim 1, characterized in that: The inner wall of the bottom frame (1) is threaded with a self-tapping bolt (13), the inner wall of the self-tapping bolt (13) is slidably connected with an extension rod (14), and the outer end of the extension rod (14) is fixedly connected with a collar (15).
3. The protective structure for electrical cables of fully mechanized coal mining machines according to claim 1, characterized in that: The limiting component includes a limiting rod (16), the bottom end of which is fixedly connected to the outer end of the opposing threaded rod (12), the top end of which is elastically connected to a limiting frame (18) via a limiting spring (17), the top end of which is fixedly connected to a limiting block (19), and a limiting groove (20) is formed on the outer wall of the base (9).
4. The protective structure for electrical cables of fully mechanized coal mining machines according to claim 1, characterized in that: One end of the reset spring (4) is fixedly connected to the bottom of the inner wall of the top frame one (2) and the top frame two (3), and the other end of the reset spring (4) is fixedly connected to the back of the clamp (5). The outer wall of the slide rod (6) is slidably connected to the inner wall of the top frame one (2) and the top frame two (3).
5. The protective structure for the electrical cables of a fully mechanized coal mining machine according to claim 1, characterized in that: The outer wall of the sleeve (7) is slidably connected to the inner wall of the base (9), the bottom of the threaded slider (11) is slidably connected to the bottom of the inner wall of the base (9), and the top of the connecting rod (10) is hinged to the bottom of the base frame (1).
6. The protective structure for the electrical cables of a fully mechanized coal mining machine according to claim 2, characterized in that: The outer wall of the collar (15) is slidably connected to the inner wall of the outer side of the bottom frame (1).
7. The protective structure for electrical cables of fully mechanized coal mining machines according to claim 3, characterized in that: The outer wall of the limiting rod (16) is slidably connected to the outer inner wall of the base (9). One end of the limiting spring (17) is fixedly connected to the top of the limiting rod (16), and the other end of the limiting spring (17) is fixedly connected to the top of the inner wall of the limiting frame (18).
8. The protective structure for electrical cables of fully mechanized coal mining machines according to claim 3, characterized in that: The inner wall of the limiting frame (18) is slidably connected to the outer wall of the limiting rod (16), and the end of the limiting block (19) is engaged with the inner wall of the limiting groove (20).