Fault detection and maintenance device for coal mining machine
By designing an automated coal mining machine fault detection and maintenance device, and using an electric cylinder to achieve jacking, the problems of inconvenience and safety hazards in coal mining machine maintenance have been solved, and a safe and efficient maintenance process has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YAOJIE ELECTRIC COAL
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-21
AI Technical Summary
The existing coal mining machine needs to be lifted up for maintenance, which is inconvenient to operate and poses safety hazards. In particular, its large size makes it difficult for workers to maintain it at high positions and makes them prone to bumps and trips.
A fault detection and maintenance device was designed, comprising a workbench, a support platform, an electric slide rail, a base, an electric cylinder, and a top platform. The device enables automated movement and jacking via the electric cylinder, allowing workers to perform maintenance on the top platform and avoiding the need for manual jacking of the coal mining machine.
This eliminates the need for manual jacking of the coal mining machine, making it easier for workers to perform maintenance at various heights, improving safety and avoiding the risk of bumps and trips.
Smart Images

Figure CN224152057U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of coal mine equipment technology, and specifically relates to a coal mining machine fault detection and maintenance device. Background Technology
[0002] Coal mining machines are one of the main pieces of equipment in fully mechanized mining systems. They evolved from coal cutters and are large, complex systems integrating mechanics, electrical systems, and hydraulics. They operate in harsh environments, and malfunctions can disrupt the entire mining operation, causing significant economic losses. Coal mining machines are crucial for achieving mechanization and modernization in coal mine production. Mechanized coal mining reduces manual labor, improves safety, and achieves high output, high efficiency, and low consumption. Therefore, to prevent malfunctions and substantial economic losses during operation, regular inspection and maintenance of coal mining machines are necessary.
[0003] Existing methods for overhauling coal mining machines require lifting the machine for inspection. The heavy weight of the machine makes lifting inconvenient, and the large size of the machine makes it difficult for workers to inspect at heights. Furthermore, workers walking around in this way risk tripping and falling, posing a safety hazard. While existing solutions to these problems may exist, this paper aims to provide a replacement or alternative technical solution. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a coal mining machine fault detection and maintenance device, which solves the technical problems of existing coal mining machine maintenance, which requires lifting the coal mining machine for maintenance. The coal mining machine is heavy and lifting it is very inconvenient. In addition, the coal mining machine is large and workers cannot perform maintenance at high positions. Furthermore, workers walking back and forth may cause them to trip and fall, posing safety hazards.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A coal mining machine fault detection and maintenance device includes a workbench, on which a support platform is mounted. Electric slide rails are mounted on the workbench and on both sides of the support platform. A base is mounted on the moving end of each electric slide rail. An assembly column is mounted on each base. A first electric cylinder is mounted inside each assembly column. A top column is mounted on the telescopic end of each first electric cylinder. A second electric cylinder is mounted inside each top column. A top platform is mounted on the telescopic end of each second electric cylinder. A protective railing is mounted on each top platform.
[0007] Preferably, each of the protective fences is equipped with a gooseneck support, and each of the gooseneck support is equipped with a lighting lamp.
[0008] Preferably, each of the bases is equipped with two support rods on its two side walls, and each support rod is movably equipped with a roller, with each roller contacting the upper wall of the worktable.
[0009] Preferably, trapezoidal platforms are mounted on both sides of the workbench.
[0010] Preferably, the upper wall of the support platform has a limiting slot.
[0011] Preferably, a toolbox is mounted on each of the protective fences and on one side of each of the gooseneck supports.
[0012] The beneficial effects of this utility model are as follows:
[0013] This device enables automated mobile lifting of workers without the need to lift the coal mining machine. It allows workers to be positioned at various heights on the coal mining machine, facilitating maintenance and eliminating the need for workers to walk back and forth, thus preventing injuries and tripping incidents and ensuring high safety. Attached Figure Description
[0014] Figure 1 This is a structural schematic diagram of a coal mining machine fault detection and maintenance device according to the present invention.
[0015] Figure 2 This is a side view sectional structural diagram of a coal mining machine fault detection and maintenance device according to the present invention.
[0016] Figure 3 This is a top view of the fault detection and maintenance device for a coal mining machine according to the present invention.
[0017] In the diagram: 1-Workbench; 2-Bearing platform; 3-Electric slide rail; 4-Base; 5-Assembly column; 6-First electric cylinder; 7-Top column; 8-Second electric cylinder; 9-Top platform; 10-Protective fence; 11-Gooseneck support; 12-Lighting lamp; 13-Support rod; 14-Roller; 15-Trapezoidal platform; 16-Toolbox. Detailed Implementation
[0018] 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.
[0019] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, without explaining the electrical control.
[0020] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] Example 1
[0022] Reference Figure 1-3 A coal mining machine fault detection and maintenance device includes a workbench 1, a support platform 2 mounted on the workbench 1, electric slide rails 3 mounted on the workbench 1 and on both sides of the support platform 2, a base 4 mounted on the moving end of each electric slide rail 3, an assembly column 5 mounted on each base 4, a first electric cylinder 6 mounted inside each assembly column 5, a top column 7 mounted on the telescopic end of each first electric cylinder 6, a second electric cylinder 8 mounted inside each top column 7, and a top platform 9 mounted on the telescopic end of each second electric cylinder 8. Each of the top platforms 9 is equipped with a protective railing 10; each protective railing 10 is equipped with a gooseneck support rod 11, and each gooseneck support rod 11 is equipped with a lighting lamp 12; each base 4 has two support rods 13 on each side wall, each support rod 13 is movably equipped with a roller 14, and each roller 14 is in contact with the upper wall of the workbench 1; each of the two side walls of the workbench 1 is equipped with a trapezoidal platform 15; the upper wall of the support platform 2 has a limit slot; each protective railing 10 and located on one side of each gooseneck support rod 11 is equipped with a toolbox 16.
[0023] The specific working principle is as follows: The coal mining machine requiring maintenance is hoisted onto the support platform 2 on the workbench 1 and positioned within the limiting slot. After placement, workers walk up to the top platform 9 via the trapezoidal platform 15. A protective fence 10 is used for enclosure and protection. Workers can retrieve tools from the toolbox 16 on the protective fence 10 for maintenance. When movement is required, the moving end of the electric slide rail 3 installed on the workbench 1 begins to move, allowing workers on the top platform 9 to move, facilitating maintenance of the coal mining machine. When supplementing lighting, the staff moves the gooseneck support rod 11 to make the lighting lamp 12 shine directly on the maintenance area for supplementing lighting. When maintaining the coal mining machine at a high position, the first electric cylinder 6 in the assembly column 5 installed on the base 4 pushes the top column 7 to rise for the first stage of jacking. The second electric cylinder 8 installed in the top column 7 pushes the top platform 9 to rise for the second stage of jacking. The multi-stage jacking height can be adjusted in various ways. The rollers 14 on the support rod 13 installed on the base 4 move with the moving end of the electric slide rail 3 to increase the stability of the base 4. The toolbox 16 is convenient for storing tools.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A coal cutter fault detection maintenance device comprising a workbench, characterized in that: The workbench (1) is equipped with a support platform (2). Electric slide rails (3) are respectively installed on the workbench (1) and on both sides of the support platform (2). A base (4) is installed on the moving end of each electric slide rail (3). An assembly column (5) is installed on each base (4). A first electric cylinder (6) is installed in each assembly column (5). A top column (7) is installed on the telescopic end of each first electric cylinder (6). A second electric cylinder (8) is installed in each top column (7). A top platform (9) is installed on the telescopic end of each second electric cylinder (8). A protective railing (10) is installed on each top platform (9).
2. The fault detection and maintenance device for a coal mining machine according to claim 1, characterized in that: Each of the protective fences (10) is equipped with a gooseneck support (11), and each of the gooseneck support (11) is equipped with a lighting lamp (12).
3. The fault detection and maintenance device for a coal mining machine according to claim 1, characterized in that: Two support rods (13) are respectively mounted on the two side walls of the base (4), and each support rod (13) is movably mounted with a roller (14), and each roller (14) is in contact with the upper wall of the worktable (1).
4. The fault detection and maintenance device for a coal mining machine according to claim 1, characterized in that: Trapezoidal platforms (15) are respectively mounted on the two side walls of the workbench (1).
5. The coal mining machine fault detection and maintenance device of claim 1, wherein: The upper wall of the support platform (2) has a limit slot.
6. The coal mining machine fault detection and maintenance device of claim 2, wherein: Toolboxes (16) are mounted on the protective fence (10) and on one side of each of the gooseneck supports (11).