A cable lead-in device anti-pulling structure of a mine-used motor

Abstract

The utility model provides a kind of cable introduction device anti-pulling structure of mine motor, it is related to motor wiring technical field, including: motor main body;The motor main body is fixed with terminal box, two terminal posts are fixed symmetrically in terminal box inner wall bottom end face, each terminal post is all threadedly connected with lock nut, each terminal post is all fixed with a cable by lock nut;Terminal box is fixed with cover plate, and the bottom end face of cover plate is fixed with two second auxiliary blocks.The cable is pressed in the inner wall bottom end of terminal box by the second auxiliary block, the cable can be effectively prevented from being pulled out, the first auxiliary block and the second auxiliary block are clamped together, the anti-pulling effect is further enhanced, and the failure risk caused by cable loosening is greatly reduced;At the same time, the first auxiliary block top end face and the second auxiliary block bottom end face are polished to form arc structure, which can avoid damaging the cable during clamping process, and improve the safety of the fixing process.

Description

Technical Field

[0001] This utility model relates to the field of motor wiring technology, and in particular to an anti-pull-out structure for a cable introduction device for a mining motor. Background Technology

[0002] The motor junction box is an important electrical component that connects the internal wiring of the motor to the external power supply and control circuitry.

[0003] The existing device has poor stability after wiring and cannot be secured in multiple ways, which makes the wiring easy to come loose during use, thus increasing the failure rate. Utility Model Content

[0004] This utility model relates to an anti-pull-out structure for a cable introduction device for a mining motor, which solves the problem that existing devices have poor stability after wiring and cannot be secured in multiple ways, leading to easy pull-out at the wiring point during use, thus increasing the failure rate.

[0005] This utility model provides an anti-pull-out structure for a cable introduction device of a mining motor, specifically including: a motor body; a junction box fixed on the motor body, two terminals symmetrically fixed on the bottom surface of the inner wall of the junction box, each terminal threaded with a locking nut, and a cable fixed on each terminal by the locking nut; a cover plate fixed on the junction box, and two second auxiliary blocks fixed on the bottom surface of the cover plate, the two second auxiliary blocks pressing the two cables tightly inside the junction box.

[0006] Furthermore, a first auxiliary block is fixed to the bottom surface of the inner wall of the junction box. The first auxiliary block is inserted between two second auxiliary blocks, and the cable is clamped between the two second auxiliary blocks and one first auxiliary block.

[0007] Furthermore, the top surface of the first auxiliary block and the bottom surface of the second auxiliary block are both polished. After polishing, the top surface of the first auxiliary block and the bottom surface of the second auxiliary block are both arc-shaped structures. The first auxiliary block and the second auxiliary block together form an auxiliary component.

[0008] Furthermore, the cover plate is fixed to the junction box by two fixing screws, and each fixing screw has an adjustment groove at its adjustment point. The adjustment groove is a hexagonal groove structure.

[0009] Furthermore, two wire grooves are symmetrically opened on the motor body, and two cables are clamped in the two wire grooves. Two sealing blocks are symmetrically fixed on the cover plate, and the two sealing blocks are clamped in the two wire grooves. The bottom of the two sealing blocks are in elastic contact with the two cables respectively. The two sealing blocks are the sealing elements of the two wire grooves.

[0010] Furthermore, the cover plate has a stepped structure, with the outer wall of the lower half of the cover plate contacting the inner wall of the junction box, and the bottom end face of the upper half of the cover plate contacting the top end face of the junction box.

[0011] This utility model provides an anti-pull-out structure for the cable introduction device of a mining motor, which has the following beneficial effects: This application uses a second auxiliary block to press the cable tightly against the bottom of the junction box inner wall, which can effectively prevent the cable from being pulled out. Combined with the clamping of the first and second auxiliary blocks, the anti-pull-out effect is further enhanced, and the risk of failure caused by cable loosening is greatly reduced. At the same time, the top surface of the first auxiliary block and the bottom surface of the second auxiliary block are polished to form an arc structure, which can avoid damage to the cable during the clamping process and improve the safety of the fixing process.

[0012] The cover plate of this application adopts a stepped structure, with the outer wall of its lower half contacting the inner wall of the junction box, and the bottom surface of its upper half contacting the top surface of the junction box, which significantly improves the sealing performance at the connection between the cover plate and the junction box.

[0013] The hexagonal adjustment groove design at the fixed screw adjustment point of this application allows it to be adapted to various wrenches for disassembly and assembly, enhancing its adaptability during the disassembly and assembly process.

[0014] The cable tray of this application is sealed by a sealing block, which effectively improves the waterproof performance. The elastic pressure of the sealing block against the cable further strengthens the anti-pull-out capability. These structural designs work together to improve the overall performance of the device in many aspects, such as anti-pull-out, sealing, safety protection, and ease of assembly and disassembly, ensuring that the motor operates stably under complex working conditions. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the present invention.

[0017] In the attached diagram: Figure 1 A perspective view of the anti-pull-out structure of the cable introduction device for the mining motor of this utility model is shown; Figure 2 This shows an enlarged view of section A of the anti-pull-out structure of the cable introduction device for the mining motor of this utility model; Figure 3 This invention presents a three-dimensional view of the anti-pull-out structure of the cable introduction device for a mining motor after disassembly. Figure 4 This shows a disassembled front view of the anti-pull-out structure of the cable introduction device for the mining motor of this utility model; Figure 5 This utility model is shown Figure 4 Enlarged view of point B; Figure 6 A perspective view of the wiring portion of this utility model after being cut open is shown.

[0018] List of reference numerals 1. Motor body; 2. Junction box; 201. Cover plate; 202. Fixing screw; 203. Adjustment groove; 204. Sealing block; 205. Wire groove; 3. Terminal post; 301. Locking nut; 4. Cable; 5. Auxiliary components; 501. First auxiliary block; 502. Second auxiliary block. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described 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.

[0020] Example 1: Please refer to Figures 1 to 6 : This utility model proposes an anti-pull-out structure for the cable introduction device of a mining motor, comprising: a motor body 1; a junction box 2 fixed on the motor body 1, with two terminals 3 symmetrically fixed on the bottom surface of the inner wall of the junction box 2, each terminal 3 being threaded with a locking nut 301, and each terminal 3 being fixed with a cable 4 by the locking nut 301; a cover plate 201 fixed on the junction box 2, with two second auxiliary blocks 502 fixed on the bottom surface of the cover plate 201, the two second auxiliary blocks 502 pressing the two cables 4 into the inside of the junction box 2. During use, the two second auxiliary blocks 502 press the cables 4 into the bottom surface of the inner wall of the junction box 2, preventing the cables 4 from being pulled out, improving the stability of the cable 4 connection and reducing the failure rate.

[0021] The junction box 2 has a first auxiliary block 501 fixed to the bottom surface of the inner wall. The first auxiliary block 501 is inserted between two second auxiliary blocks 502. The cable 4 is clamped between the two second auxiliary blocks 502 and one first auxiliary block 501. The clamping of the cable 4 by the second auxiliary blocks 502 and the first auxiliary block 501 can further improve the anti-pull-out effect of the cable 4.

[0022] The top surface of the first auxiliary block 501 and the bottom surface of the second auxiliary block 502 are both polished. After polishing, the top surface of the first auxiliary block 501 and the bottom surface of the second auxiliary block 502 are both arc-shaped. The first auxiliary block 501 and the second auxiliary block 502 together form the auxiliary component 5. During the clamping process of the cable 4, the first auxiliary block 501 and the second auxiliary block 502 can prevent the cable 4 from being damaged, thus improving the safety of fixing the cable 4.

[0023] The cover plate 201 is fixed to the junction box 2 by two fixing screws 202. Each fixing screw 202 has an adjustment groove 203 at its adjustment point. The adjustment groove 203 is a hexagonal groove structure. When the adjustment groove 203 is disassembled and installed, it can be disassembled and installed by various wrenches, which improves the adaptability of the fixing screw 202 during disassembly and assembly.

[0024] The motor body 1 has two symmetrically arranged wire grooves 205, and two cables 4 are clamped in the two wire grooves 205. Two sealing blocks 204 are symmetrically fixed on the cover plate 201. The two sealing blocks 204 are clamped in the two wire grooves 205, and the bottom of the two sealing blocks 204 are in elastic contact with the two cables 4 respectively. The two sealing blocks 204 are the sealing elements of the two wire grooves 205. During use, the sealing blocks 204 can seal the wire grooves 205, which improves the waterproof ability of the wire grooves 205. Furthermore, the sealing blocks 204 can tighten and fix the cables 4, which can further improve the anti-pull-out ability of the cables 4.

[0025] The cover plate 201 has a stepped structure. The outer wall of the lower half of the cover plate 201 contacts the inner wall of the junction box 2, and the bottom surface of the upper half of the cover plate 201 contacts the top surface of the junction box 2. During use, the stepped structure of the cover plate 201 can improve the sealing performance between the cover plate 201 and the junction box 2.

Claims

1. A cable entry device anti-pullout structure for a mine duty electric machine, characterized by, include: The motor body (1) is fixed with a junction box (2). Two terminals (3) are symmetrically fixed on the bottom surface of the inner wall of the junction box (2). Each terminal (3) is threaded with a locking nut (301). Each terminal (3) is fixed with a cable (4) by the locking nut (301). A cover plate (201) is fixed on the junction box (2). Two second auxiliary blocks (502) are fixed on the bottom surface of the cover plate (201). The two second auxiliary blocks (502) press the two cables (4) into the inside of the junction box (2).

2. The cable pull-out prevention structure of a mine-used motor according to claim 1, characterized in that, The junction box (2) has a first auxiliary block (501) fixed on the bottom surface of its inner wall. The first auxiliary block (501) is inserted between two second auxiliary blocks (502), and the cable (4) is clamped between the two second auxiliary blocks (502) and a first auxiliary block (501).

3. The cable pull-out prevention structure of a mine-used motor according to claim 2, characterized in that, The top surface of the first auxiliary block (501) and the bottom surface of the second auxiliary block (502) are both polished. After polishing, the top surface of the first auxiliary block (501) and the bottom surface of the second auxiliary block (502) are both arc-shaped structures. The first auxiliary block (501) and the second auxiliary block (502) together form the auxiliary component (5).

4. The cable pull-out prevention structure of a mine-used motor according to claim 1, characterized in that, The cover plate (201) is fixed to the junction box (2) by two fixing screws (202). Each fixing screw (202) has an adjustment groove (203) at its adjustment point. The adjustment groove (203) is a hexagonal groove structure.

5. The cable pull-out prevention structure of a mine-used motor according to claim 1, characterized in that, The motor body (1) has two symmetrically arranged wire grooves (205), and two cables (4) are clamped in the two wire grooves (205). Two sealing blocks (204) are symmetrically fixed on the cover plate (201). The two sealing blocks (204) are clamped in the two wire grooves (205), and the bottom of the two sealing blocks (204) is in elastic contact with the two cables (4) respectively. The two sealing blocks (204) are the sealing elements of the two wire grooves (205).

6. The cable pull-out prevention structure of a mine-used motor according to claim 1, characterized in that, The cover plate (201) has a stepped structure. The outer wall of the lower half of the cover plate (201) is in contact with the inner wall of the junction box (2), and the bottom surface of the upper half of the cover plate (201) is in contact with the top surface of the junction box (2).

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