Motor wiring connection protection device for coal mine electromechanical equipment

Abstract

The utility model discloses a coal mine electromechanical equipment motor wiring connection protection device, which relates to the technical field of coal mine motor protection, and comprises a machine body, a plurality of connecting wires are inserted into one side of the machine body, and a first protection mechanism is arranged on one side, close to the connecting wires, of the machine body and is used for increasing the pulling resistance of the connecting wires. The first protection mechanism comprises a mounting frame, the mounting frame is fixedly connected to the machine body, a plurality of supporting blocks are fixedly connected to the bottom of the mounting frame, and through the arrangement of the first protection mechanism, when the connecting wire is inserted and mounted on the machine body, when the coal mining machine is used, if the external part of the connecting wire is pulled, the connecting wire is clamped through clamping blocks and the supporting blocks; the protective baffle blocks and limits the connecting line, so that the stress at the joint of the connecting line and the machine body during pulling can be reduced, the stability of the connecting line during pulling is improved, and the frequency and risk of separation of the connecting line and the machine body are reduced.

Description

Technical Field

[0001] This utility model relates to the field of protection technology for electric motors in coal mines, specifically a wiring connection protection device for electric motors in coal mine electromechanical equipment. Background Technology

[0002] Coal mine electromechanical equipment is an indispensable mechanical and electrical equipment in coal mining and operation. It covers key technical equipment for the entire process from mining, transportation, support to ventilation, drainage, and power supply. Among the coal mine electromechanical equipment, the coal mining machine is one of the core equipment in modern coal mining. Its technological development and application directly affect the coal mine production efficiency and safety level.

[0003] When the coal mining machine is running at the working face, it is driven by the traction system to slide along the scraper conveyor. In coordination with multiple sensors, the height of the cutting drum is adjusted in real time. Its cutting teeth form a progressive crushing zone at the coal-rock interface, thereby realizing the cutting and collection of coal. During use, the connection between the motor and the power supply in the coal mining machine mostly requires a connection protection device, namely a junction box. The junction box connects the wires together and protects the wire connection points of the coal mining machine.

[0004] Although the connection protection device of the coal mining machine can provide good protection for the connection wires, the constant friction and collision between the cutting drum and the coal seam during operation can cause vibration of the machine body. In addition, the coal mining machine needs to move frequently on the working face, which can cause the wiring inside the connection protection device to be pulled by external forces. This can lead to frequent loosening of the wiring and internal connectors of the connection protection device, affecting the normal operation of the equipment.

[0005] Therefore, this utility model proposes a wiring connection protection device for electric motors in coal mine electromechanical equipment to solve the above problems. Utility Model Content

[0006] In view of this, the technical problem to be solved by this utility model is to propose a wiring connection protection device for the motor of coal mine electromechanical equipment, so as to solve the problem that in the prior art, the wiring and internal socket of the connection protection device are frequently loosened during the use of the coal mining machine, which affects the normal operation of the equipment.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a protective device for the wiring connection of a motor in a coal mine electromechanical equipment, comprising a body, with multiple connecting wires inserted into one side of the body, and a first protective mechanism provided on the side of the body near the connecting wires. The first protective mechanism is used to increase the pulling resistance of the connecting wires. The first protective mechanism includes a mounting frame, which is fixedly connected to the body. Multiple support blocks are fixedly connected to the bottom of the mounting frame, and a sliding rod is slidably connected to each support block. A protective baffle is slidably connected to the side of the sliding rod away from the support block. Locking blocks are fixedly connected to both sides of the sliding rod, and the locking blocks engage with the support blocks. One side of the protective baffle is set as an inclined surface, and the protective baffle can slide by the thrust of the connecting wires.

[0008] Preferably, each of the connecting lines is located below the mounting bracket, and every two support blocks are symmetrically arranged on the outside of each connecting line.

[0009] Preferably, the protective mechanism further includes a return spring, which is fixedly connected between the protective baffle and the sliding rod.

[0010] Preferably, a pointer is fixedly connected to the support block, and a measuring ruler is fixedly connected to the sliding rod near the pointer, with the measuring ruler located below the pointer.

[0011] Preferably, the system also includes multiple sets of second protective mechanisms for increasing the pulling resistance of the connecting wire. Each second protective mechanism is connected to the support block. The second protective mechanism includes a limiting block, which is fixedly connected to the support block. The side of the limiting block away from the support block is arc-shaped and in contact with the connecting wire.

[0012] Preferably, a sliding piece is slidably connected to the limiting block, and two abutments are slidably connected to the side of the sliding piece near the connecting line. Each abutment has a spring rod sleeved at its shaft end, and the two ends of the spring rod are fixedly connected to the sliding piece and the abutment respectively. The side of the abutment near the connecting line is set to be arc-shaped.

[0013] Preferably, a linkage block is fixedly connected to one side of the sliding rod, the linkage block passes through one side of the support block and is slidably connected to the support block, and a connecting rod is rotatably connected to the side of the linkage block near the sliding piece, the connecting rod being slidably connected to the sliding piece.

[0014] Preferably, the linkage block, in cooperation with the connecting rod, can drive the sliding plate to slide.

[0015] Compared with the prior art, this utility model provides a wiring connection protection device for motors of coal mine electromechanical equipment, which has the following beneficial effects:

[0016] 1. By setting up the first protective mechanism, when the connecting line is plugged in and installed with the machine body, if the connecting line is subjected to external pulling effect during the use of the coal mining machine, the protective baffle blocks and limits the connecting line through the locking block and the support block, which can reduce the stress at the connection between the connecting line and the machine body when pulled, improve the stability of the connecting line when pulled, and reduce the frequency and risk of the connecting line separating from the machine body.

[0017] 2. With the second protective mechanism, when the sliding rod slides, the abutment block can be made to abut against the outer surface of the connecting wire with the cooperation of the linkage block and the connecting rod. Then, when the first protective mechanism removes the obstruction of the connecting wire to protect it, the abutment block can continue to increase the resistance of the connecting wire sliding outward. Due to the elastic setting of the spring rod, the resistance generated by the abutment block will only reduce the speed of the connecting wire sliding outward without damaging the connecting wire. This improves the protection effect of the connecting wire during use, allowing the operator to extend the connection time between the connecting wire and the machine body when the connecting wire is found to be loose. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This utility model Figure 1 Partial three-dimensional structure diagram;

[0020] Figure 3 This utility model Figure 2 Partial three-dimensional structure diagram;

[0021] Figure 4 This utility model Figure 2 Partial sectional view of the structure;

[0022] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0023] In the picture:

[0024] 1. Body; 11. Connecting wires;

[0025] 201. Mounting bracket; 202. Support block; 203. Sliding rod; 204. Protective baffle; 205. Locking block; 206. Return spring; 207. Pointer; 208. Measuring ruler;

[0026] 301. Limiting block; 302. Sliding piece; 303. Spring rod; 304. Abutment block; 305. Linkage block; 306. Connecting rod. Detailed Implementation

[0027] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, some features described in the examples may be combined in other examples.

[0028] like Figures 1-5 As shown, this embodiment provides a protective device for the wiring connection of a motor in a coal mine electromechanical equipment, including a body 1. Multiple connecting wires 11 are plugged into one side of the body 1. A first protective mechanism is provided on the side of the body 1 near the connecting wires 11. The connecting wires 11 include a plug and a wire body. The diameter of the plug is larger than the diameter of the wire body. The first protective mechanism is used to increase the pulling resistance of the connecting wires 11. The first protective mechanism includes a mounting frame 201, which is fixedly connected to the body 1. Multiple support blocks 202 are fixedly connected to the bottom of the mounting frame 201. A sliding rod 203 is slidably connected to each support block 202. A protective baffle 204 is slidably connected to the side of the sliding rod 203 away from the support block 202. A locking block 205 is fixedly connected to both sides of the sliding rod 203. The locking block 205 is engaged with the support block 202. One side of the protective baffle 204 is set as an inclined surface. The protective baffle 204 can slide by the thrust of the connecting wires 11.

[0029] Each connecting line 11 is located below the mounting bracket 201. Two support blocks 202 are symmetrically arranged on the outside of each connecting line 11. The protective mechanism also includes a return spring 206, which is fixedly connected between the protective baffle 204 and the sliding rod 203. A pointer 207 is fixedly connected to the support block 202. A detection ruler 208 is fixedly connected to the side of the sliding rod 203 near the pointer 207. The detection ruler 208 is located below the pointer 207.

[0030] The working principle and beneficial effects of the above technical solution are as follows:

[0031] When the connecting cable 11 needs to be inserted into the body 1, one end of the connecting cable 11 will press against the inclined surface of the protective baffle 204. After the inclined surface of the protective baffle 204 is pressed, the return spring 206 is compressed, and the protective baffle 204 moves away from the connecting cable 11 until the plug of the connecting cable 11 is inserted and connected to the body 1. Then the plug of the connecting cable 11 no longer exerts pressure on the protective baffle 204. Under the rebound force of the return spring 206, the protective baffle 204 slides back towards the connecting cable 11, and one side of the protective baffle 204 contacts one end of the plug of the connecting cable 11.

[0032] With the first protective mechanism in place, when the connecting line 11 is plugged in and installed with the machine body 1, if the connecting line 11 is subjected to a pulling effect when it is used in the coal mining machine, the protective baffle 204 blocks and limits the connecting line 11 by the locking block 205 and the support block 202, which can reduce the stress at the connection between the connecting line 11 and the machine body 1 when pulled, improve the stability of the connecting line 11 when pulled, and reduce the frequency and risk of the connecting line 11 detaching from the machine body 1.

[0033] Simultaneously, when the pulling force on the connecting line 11 is too large, the pushing force on the protective baffle 204 caused by the connecting line 11 will increase, causing the locking block 205 to disengage from the support block 202. At this time, the outward movement of the connecting line 11 will cause the protective baffle 204 and the sliding rod 203 to slide. When the sliding rod 203 slides, it will cause the measuring ruler 208 to slide simultaneously. At this time, the distance of the pulling of the connecting line 11 can be determined by the relative displacement distance between the pointer 207 and the measuring ruler 208. The locking setting of the locking block 205 can be used to determine the distance of the pulling of the connecting line 11. When the connecting line 11 is subjected to excessive pulling force, the locking block 205 disengages from the support block 202, thereby reducing the resistance of the protective baffle 204 to the connecting line 11. This greatly avoids damage to the connecting line 11 due to excessive pressure between the connecting line 11 and the protective baffle 204. At the same time, by setting the measuring ruler 208 and the pointer 207, when the staff needs to know the connection status between the machine body 1 and the connecting line 11, they can judge by the displacement of the measuring ruler 208, thereby reducing the frequency of disassembly of the machine body 1 by the staff.

[0034] Further examples:

[0035] It also includes multiple sets of second protective mechanisms to increase the pulling resistance of the connecting line 11. Each second protective mechanism is connected to the support block 202. The second protective mechanism includes a limiting block 301, which is fixedly connected to the support block 202. The side of the limiting block 301 away from the support block 202 is arc-shaped and in contact with the connecting line 11. A sliding piece 302 is slidably connected to the limiting block 301. Two abutments 304 are slidably connected to the side of the sliding piece 302 near the connecting line 11. A spring rod 3 is sleeved on the shaft end of each abutment 304. 03. The two ends of the spring rod 303 are fixedly connected to the sliding piece 302 and the abutment 304 respectively. The abutment 304 is arc-shaped on the side near the connecting line 11. A linkage block 305 is fixedly connected to one side of the sliding rod 203. The linkage block 305 passes through one side of the support block 202 and is slidably connected to the support block 202. A connecting rod 306 is rotatably connected to the side of the linkage block 305 near the sliding piece 302. The connecting rod 306 is slidably connected to the sliding piece 302. The linkage block 305 can drive the sliding piece 302 to slide by cooperating with the connecting rod 306.

[0036] The working principle and beneficial effects of the above technical solution are as follows:

[0037] When the first protective mechanism is in use, in order to protect the connecting line 11, after the locking block 205 is separated from the support block 202, the resistance of the protective baffle 204 to the connecting line 11 is greatly reduced. When the connecting line 11 is subjected to a large drag force and pushes the sliding rod 203 to slide, the sliding rod 203 will drive the linkage block 305 to slide at the same time, thereby pulling the connecting rod 306 to slide outward, so that the other end of the connecting rod 306 pushes the sliding piece 302 to move towards the connecting line 11, thereby causing the abutment block 304 to move towards the connecting line 11 and the spring rod 303 to compress. At this time, the force generated by the compression of the spring rod 303 can increase the resistance between the abutment block 304 and the connecting line 11.

[0038] With the second protective mechanism, when the sliding rod 203 slides, the abutment 304 can abut against the outer surface of the connecting line 11 with the cooperation of the linkage block 305 and the connecting rod 306. Thus, when the first protective mechanism removes the obstruction of the connecting line 11 to protect it, the abutment of the abutment 304 can further increase the resistance of the connecting line 11 to slide outward. Due to the elastic setting of the spring rod 303, the resistance generated by the abutment 304 will only reduce the speed of the connecting line 11 sliding outward, without damaging the connecting line 11. This improves the protection effect of the connecting line 11 during use, allowing the connection time between the connecting line 11 and the machine body 1 to be extended when the operator finds that the connecting line 11 is loose.

[0039] The embodiments of this utility model have been described above, but these embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of these embodiments, all of which are within the protection scope of these embodiments.

Claims

1. A wiring connection protection device for a motor in a coal mine electromechanical equipment, comprising a body (1), wherein a plurality of connecting wires (11) are plugged into one side of the body (1), characterized in that, The body (1) is provided with a first protective mechanism on the side near the connecting line (11), the first protective mechanism being used to increase the pulling resistance of the connecting line (11); The first protective mechanism includes a mounting frame (201), which is fixedly connected to the body (1). Multiple support blocks (202) are fixedly connected to the bottom of the mounting frame (201). A sliding rod (203) is slidably connected to each support block (202). A protective baffle (204) is slidably connected to the side of the sliding rod (203) away from the support block (202). A locking block (205) is fixedly connected to both sides of the sliding rod (203). The locking block (205) is engaged with the support block (202). One side of the protective baffle (204) is set as an inclined surface, and the protective baffle (204) can slide by the thrust of the connecting line (11).

2. The protective device for motor wiring connection of coal mine electromechanical equipment according to claim 1, characterized in that: Each of the connecting lines (11) is located below the mounting bracket (201), and every two support blocks (202) are symmetrically arranged on the outside of each connecting line (11).

3. The protective device for motor wiring connection of coal mine electromechanical equipment according to claim 1, characterized in that: The protective mechanism also includes a return spring (206), which is fixedly connected between the protective baffle (204) and the sliding rod (203).

4. The protective device for motor wiring connection of coal mine electromechanical equipment according to claim 1, characterized in that: A pointer (207) is fixedly connected to the support block (202), and a measuring ruler (208) is fixedly connected to the sliding rod (203) near the pointer (207). The measuring ruler (208) is located below the pointer (207).

5. A protective device for motor wiring connections in coal mine electromechanical equipment according to claim 1, characterized in that: It also includes multiple sets of second protective mechanisms for increasing the pulling resistance of the connecting line (11). Each second protective mechanism is connected to the support block (202). The second protective mechanism includes a limiting block (301). The limiting block (301) is fixedly connected to the support block (202). The side of the limiting block (301) away from the support block (202) is set as arc and is in contact with the connecting line (11).

6. A protective device for the wiring connection of a motor in coal mine electromechanical equipment according to claim 5, characterized in that: A sliding piece (302) is slidably connected to the limiting block (301). Two abutments (304) are slidably connected to the side of the sliding piece (302) near the connecting line (11). A spring rod (303) is sleeved on the shaft end of each abutment (304). The two ends of the spring rod (303) are fixedly connected to the sliding piece (302) and the abutment (304) respectively. The side of the abutment (304) near the connecting line (11) is set to be arc-shaped.

7. A protective device for motor wiring connections in coal mine electromechanical equipment according to claim 6, characterized in that: A linkage block (305) is fixedly connected to one side of the sliding rod (203). The linkage block (305) passes through one side of the support block (202) and is slidably connected to the support block (202). A connecting rod (306) is rotatably connected to the side of the linkage block (305) near the sliding piece (302). The connecting rod (306) is slidably connected to the sliding piece (302).

8. A protective device for motor wiring connections in coal mine electromechanical equipment according to claim 7, characterized in that: The linkage block (305) can drive the sliding plate (302) to slide by cooperating with the connecting rod (306).

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