Mining coal mining machine cable with multi-layer protection structure
By designing a multi-layer protective structure on the coal mining machine cable, including cage, cable inner core, fixing block, insulating middle layer, buffer layer and wear-resistant layer, the problem of outer layer of cable wear is solved and the wear resistance and safety of cable is improved.
Patent Information
- Application Number
- CN202422314488.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-23
AI Technical Summary
When the coal mining machine cable is used for a long time in harsh environments, the outer layer is prone to wear, resulting in low safety.
A multi-layer protective structure is adopted, including a cage, cable inner core, fixing block, insulating middle layer, buffer layer, protective frame and wear-resistant layer. The cable is limited, fixed and protected through a combination of these layers.
It improves the wear resistance of the cable, prevents wear of the insulation outer layer, and enhances the safety and practicality of the cable.
Smart Images
Figure CN223245319U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cables, in particular to a mining coal mining machine cable with a multi-layer protection structure. Background Art
[0002] Cables are usually rope-like cables made of several or several groups of wires (at least two in each group). Each group of wires is insulated from each other and often twisted around a center. The entire outside is covered with a highly insulating covering. The cable has the characteristics of being powered inside and insulated outside.
[0003] Coal mining machine is one of the main equipment of comprehensive mining equipment. Coal mining machine has evolved from coal cutting machine. Coal mining machine is a large and complex system integrating mechanical, electrical and hydraulic functions. During the operation of coal mining machine, cables are needed to provide power for coal mining machine. However, based on the coal mining machine cable in the existing technology, during use, due to the harsh working environment of the coal mining machine, the cable is in direct contact with the ground. After working for a long time, it is easy to cause greater wear on the outer layer of the cable, causing damage to the outer layer of the cable, and low safety. Utility Model Content
[0004] The utility model provides a mining coal mining machine cable with a multi-layer protective structure, which solves the problem in the prior art that the coal mining machine cable is in direct contact with the ground, which easily causes significant wear and tear on the outer layer of the cable after long-term work, resulting in damage to the outer layer of the cable and low safety.
[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A mining coal mining machine cable with a multi-layer protective structure includes a retaining frame, several cable inner cores distributed in a ring shape and several fixing blocks. The cable inner core includes a wound copper core, a mica tape layer and an insulating inner layer. An insulating middle layer is provided on the outer wall of the fixing block, and a buffer layer is provided on the outer wall of the insulating middle layer. A protective frame is provided on the outer wall of the buffer layer, and an insulating outer layer is provided on the outer wall of the protective frame. A wear-resistant layer is provided on the outer wall of the insulating outer layer.
[0007] Preferably, a circular through hole is provided at the center of the retaining frame, and a plurality of arc-shaped grooves are provided on the outer wall of the retaining frame, and a plurality of the cable inner cores are respectively abutted in the plurality of grooves.
[0008] Preferably, the wound copper core includes a plurality of copper wires, and the plurality of copper wires are wound around each other, the mica tape layer is wound around the outer wall of the wound copper core, and the insulating inner layer is sleeved on the outer wall of the mica tape layer.
[0009] Preferably, a plurality of the fixing blocks are respectively in contact with the outer walls of a plurality of cable inner cores, and the long arc-shaped surfaces of the plurality of fixing blocks form a complete circle.
[0010] With the above solution, the cable inner core is limited by the retaining frame, and the cable inner core is fixed by multiple fixing blocks, so that the multiple cable inner cores are kept in an annular distribution, preventing the cable inner core from shifting during use.
[0011] Preferably, the insulating middle layer is sleeved on the circular outer wall composed of several fixed blocks, and the buffer layer is sleeved on the outer wall of the insulating middle layer, the protective frame is sleeved on the outer wall of the buffer layer, and the insulating outer layer is sleeved on the outer wall of the protective frame.
[0012] Preferably, the wear-resistant layer is sleeved on the outer wall of the insulating outer layer, and the wear-resistant layer includes nylon yarn and flame-retardant aramid yarn, and the nylon yarn and the flame-retardant aramid yarn are woven alternately in warp and weft.
[0013] Through the above scheme, the inner core of the cable is wrapped by the insulating middle layer, and the buffer layer, protective frame and insulating outer layer protect the inner core of the cable to prevent the inner core of the cable from being damaged when it is squeezed. The wear-resistant layer protects the insulating outer layer of the cable to prevent the insulating outer layer from being greatly worn during use and to prevent the insulating outer layer from being damaged.
[0014] The beneficial effects of the utility model are:
[0015] The inner core of the cable is wrapped by the insulating middle layer, while the buffer layer, protective frame and insulating outer layer protect the inner core of the cable to prevent the inner core of the cable from being damaged when squeezed. The wear-resistant layer protects the insulating outer layer of the cable to prevent large wear of the insulating outer layer during use and prevent the insulating outer layer from being damaged. It can provide multiple protections for the cable, improve the wear resistance of the cable, prevent the insulating outer layer from being worn, and improve practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall main structure of a mining coal mining machine cable with a multi-layer protection structure proposed by the utility model.
[0017] Figure 2 This is a schematic diagram of the main structure of a retaining frame for a mining coal mining machine cable with a multi-layer protective structure proposed by the utility model.
[0018] Figure 3 This is a schematic diagram of the main structure of the cable inner core of a mining coal mining machine cable with a multi-layer protection structure proposed by the utility model.
[0019] Figure 4 This is a schematic diagram of the main structure of a fixing block of a mining coal mining machine cable with a multi-layer protection structure proposed by the utility model.
[0020] Figure 5 The utility model proposed Figure 1 Enlarged structural diagram at point A in the middle.
[0021] Figure 6 This is a schematic diagram of the main structure of a protective frame for a mining coal mining machine cable with a multi-layer protective structure proposed by the utility model.
[0022] Figure 7 This is a schematic diagram of the textile structure of the wear-resistant layer of a mining coal mining machine cable with a multi-layer protective structure proposed by the utility model.
[0023] In the figure: 1. Cage; 2. Cable inner core; 201. Wound copper core; 202. Mica tape layer; 203. Insulation inner layer; 3. Fixing block; 4. Insulation middle layer; 5. Buffer layer; 6. Protective frame; 7. Insulation outer layer; 8. Wear-resistant layer; 801. Nylon yarn; 802. Flame-retardant aramid yarn. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0025] Example 1, with reference to Figure 1-4 A mining coal mining machine cable with a multi-layer protective structure includes a retaining frame 1 with a circular through hole in the center, several cable cores 2 distributed in a ring shape, and several fixing blocks 3. The outer wall of the retaining frame 1 is provided with several arc-shaped grooves, and the several cable cores 2 are respectively abutted in the several grooves. The cable core 2 includes a wound copper core 201, a mica tape layer 202 and an insulating inner layer 203. The wound copper core 201 includes several copper wires, and the several copper wires are wound with each other. The mica tape layer 202 is wound around the outer wall of the wound copper core 201, and the insulating inner layer 203 is sleeved on the outer wall of the mica tape layer 202. Several fixing blocks 3 are respectively abutted against the outer walls of the several cable cores 2, and the long arc surfaces of the several fixing blocks 3 form a complete circle.
[0026] Example 2, reference Figure 5-7 A mining coal mining machine cable with a multi-layer protective structure also includes an insulating middle layer 4, which is sleeved on the outer wall of a circular surface composed of several fixed blocks 3. A buffer layer 5 is sleeved on the outer wall of the insulating middle layer 4, and a protective frame 6 is sleeved on the outer wall of the buffer layer 5. An insulating outer layer 7 is sleeved on the outer wall of the protective frame 6. A wear-resistant layer 8 is sleeved on the outer wall of the insulating outer layer 7. The wear-resistant layer 8 is sleeved on the outer wall of the insulating outer layer 7. The wear-resistant layer 8 includes nylon yarn 801 and flame-retardant aramid yarn 802. The nylon yarn 801 and the flame-retardant aramid yarn 802 are woven alternately in warp and weft.
[0027] Working principle: The retaining frame 1 limits the cable inner core 2, and the multiple fixing blocks 3 fix the cable inner core 2, so that the multiple cable inner cores 2 maintain a circular distribution to prevent the cable inner core 2 from shifting during use. The insulating middle layer 4 wraps the cable inner core 2. At the same time, the buffer layer 5, the protective frame 6 and the insulating outer layer 7 protect the cable inner core 2 to prevent the cable inner core 2 from being damaged when squeezed. The wear-resistant layer 8 protects the insulating outer layer 7 of the cable to prevent the insulating outer layer 7 from being greatly worn during use and prevent the insulating outer layer 7 from being damaged.
[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A mining coal mining machine cable with a multi-layer protective structure, comprising a retaining frame (1), a plurality of cable cores (2) distributed in an annular shape, and a plurality of fixing blocks (3), characterized in that: The cable inner core (2) comprises a wound copper core (201), a mica tape layer (202) and an insulating inner layer (203); An insulating middle layer (4) is provided on the outer wall of the fixing block (3), and a buffer layer (5) is provided on the outer wall of the insulating middle layer (4), a protective frame (6) is provided on the outer wall of the buffer layer (5), and an insulating outer layer (7) is provided on the outer wall of the protective frame (6), and a wear-resistant layer (8) is provided on the outer wall of the insulating outer layer (7).
2. A mining coal mining machine cable with a multi-layer protective structure according to claim 1, characterized in that: A circular through hole is provided at the center of the retaining frame (1), and a plurality of arc-shaped grooves are provided on the outer wall of the retaining frame (1), and a plurality of the cable inner cores (2) are respectively abutted in the plurality of grooves.
3. The mining shearer cable with a multi-layer protective structure according to claim 1, characterized in that: The wound copper core (201) comprises a plurality of copper wires, and the plurality of copper wires are wound around each other, the mica tape layer (202) is wound around the outer wall of the wound copper core (201), and the insulating inner layer (203) is sleeved on the outer wall of the mica tape layer (202).
4. A mining shearer cable with a multi-layer protective structure according to claim 1, characterized in that: The plurality of fixing blocks (3) are respectively in contact with the outer walls of the plurality of cable inner cores (2), and the long arc-shaped surfaces of the plurality of fixing blocks (3) form a complete circle.
5. The mining shearer cable with a multi-layer protective structure according to claim 1, characterized in that: The insulating middle layer (4) is sleeved on the outer wall of a circular surface formed by a plurality of fixed blocks (3), and the buffer layer (5) is sleeved on the outer wall of the insulating middle layer (4). The protective frame (6) is sleeved on the outer wall of the buffer layer (5), and the insulating outer layer (7) is sleeved on the outer wall of the protective frame (6).
6. The mining shearer cable with a multi-layer protective structure according to claim 1, characterized in that: The wear-resistant layer (8) is sleeved on the outer wall of the insulating outer layer (7), and the wear-resistant layer (8) comprises nylon yarn (801) and flame-retardant aramid yarn (802), and the nylon yarn (801) and the flame-retardant aramid yarn (802) are woven alternately in warp and weft.