Motor wiring connecting device for coal mine electromechanical equipment

Abstract

The utility model discloses a coal mine electromechanical equipment motor wiring connecting device which comprises a junction box, the top of the junction box is provided with an opening, the junction box is used for connecting a plurality of wires, a box cover is fixed on the top of the junction box in a threaded mode, the box cover is used for shielding the top of the junction box, and a connecting seat is fixedly connected between the inner walls of the two sides of the junction box. The front side of the connecting base is provided with a connecting hole with an opening in the top, and the inner wall of the front side and the inner wall of the rear side of the junction box are each provided with a plurality of wire penetrating holes used for allowing wires to penetrate through. According to the utility model, through the arrangement of a series of structures, connected wires can be stably fixed in a manner that multi-point fixation is matched with limiting of the insulation limiting pipe, so that the situation of staggering and separation caused by vibration in the use process can be effectively reduced, the connection stability is improved, air can be automatically blown into the junction box to assist in heat dissipation and cooling, and the service life of the junction box is prolonged. The risk of accelerating aging of the electric wire due to high temperature can be effectively reduced, and the use stability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wiring connection equipment technical field especially relates to a coal mine electromechanical equipment motor wiring connection device. BACKGROUND

[0002] With the continuous deepening of mine, by the influence of high temperature surrounding rock heat dissipation, air self compression heat, mechanical equipment heat dissipation, oxidation heat and other heat sources, coal mine electromechanical equipment motor needs to use a wiring equipment, and the joint part of wire needs to use wiring box as protection, currently coal mine electromechanical equipment motor wiring usually adopts the mode of pressing wire to extrude two groups of wires and touch together, and the connection effect of wire is achieved;

[0003] Because coal mine electromechanical equipment motor will produce vibration in the working process, and the vibration force will shake the wire, the direct pressing wire connection mode in the prior art, long time vibration, two groups of extruded contact wires are easy to separate mutually and stagger, and the connection stability is not ideal;In addition, heat will be generated on the connecting wire in the working process, and the heat dissipation effect of the wiring box is not ideal, the temperature in the wiring box is high, and the rate of aging of the connecting wire is accelerated, and the above situation is comprehensively considered, and the coal mine electromechanical equipment motor wiring connection device is provided. UTILITARIAN CONTENT

[0004] The utility model discloses a coal mine electromechanical equipment motor wiring connection device that can solve the problems in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The utility model provides a kind of coal mine electromechanical equipment motor wiring connection device, including the wiring box for connecting multiple electric wires with top being open, the top of the wiring box is fixed with box cover by screw thread, box cover is used to shield the top of wiring box, connecting seat is fixedly connected between the two side inner walls of wiring box, connecting hole with top being open is set in the front side of connecting seat, multiple threading holes for electric wire are set in the front side inner wall and rear side inner wall of wiring box, U-shaped sealing sleeve is adhesively sleeved in threading hole, U-shaped sealing sleeve is set, can be plugged after electric wire is threaded into threading hole, reduce the condition that dust enters into the inside of wiring box through threading hole, electric wire movably sleeved in corresponding U-shaped sealing sleeve, the end of two electric wires close to each other is extended into corresponding connecting hole and is fixedly connected with terminal, two terminals are inserted to each other, and the connection between the two electric wires is realized by terminal, the heat dissipation mechanism for assisting heat dissipation in wiring box is installed, the same multi-point clamping fixing mechanism for clamping and fixing multiple electric wires is installed on the bottom inner wall of wiring box and connecting seat, a plurality of insulating limit tubes are fixedly connected on the bottom inner wall of wiring box, and electric wire is wound two times on corresponding insulating limit tube, and insulating limit tube is used for limiting corresponding electric wire, so that the connecting end of electric wire cannot be pulled when tension is generated in the vibration process of electric wire.

[0007] Preferably, the heat dissipation mechanism includes a temperature sensor fixedly connected to the front side inner wall of the wiring box, which detects the temperature inside the wiring box. The detection principle is known in the art and will not be described here. A controller is embedded and fixed to the rear side inner wall of the wiring box. An installation slot is formed on the left side of the wiring box, and a heat dissipation fan is fixedly installed in the installation slot. The left side of the heat dissipation fan is the suction end and is fixedly connected with a dust screen. A plurality of air blowing holes are formed on the right side inner wall of the installation slot. The heat dissipation fan is used to extract gas and supply it into the wiring box through the plurality of air blowing holes. The air blowing holes are inclined towards the connecting seat. The temperature sensor and the heat dissipation fan are electrically connected to the controller. The controller receives signals from the temperature sensor to control the heat dissipation fan. The control principle is known in the art and will not be described here. Two air vents are formed on the right side inner wall of the wiring box, and a filter screen is fixedly installed in each air vent. The filter screen effectively reduces the entry of external dust into the air vents.

[0008] Preferably, the multi-point clamping and fixing mechanism comprises a plurality of fixed clamping plates and a plurality of first movable clamping plates, the plurality of fixed clamping plates are respectively arranged on the left side of the corresponding insulating limiting tube and fixedly connected with the inner wall of the bottom of the junction box, the first movable clamping plate is arranged on the right side of the corresponding insulating limiting tube, the right side of the fixed clamping plate and the left side of the first movable clamping plate are both arc-shaped structures, the fixed clamping plate and the first movable clamping plate are matched and can be used for clamping and fixing the position of the wire winding, the inner wall on the left side of the connecting hole is adhesively fixed with an arc-shaped elastic rubber pad, the right side of the arc-shaped elastic rubber pad is movably contacted with the left side of the corresponding two terminal posts, the right side of the arc-shaped elastic rubber pad is matched with a second movable clamping plate, the left side of the second movable clamping plate is adhesively fixed with a first rubber non-slip pad, the left side of the first rubber non-slip pad is movably contacted with the right side of the corresponding two terminal posts, the arc-shaped elastic rubber pad, the second movable clamping plate and the first rubber non-slip pad are matched and can clamp and fix the terminal post at the connecting position, the first movable clamping plates opposite to each other are fixedly connected with the corresponding second movable clamping plates on the side close to each other through first connecting rods, the first movable clamping plates and the corresponding second movable clamping plates are connected through the first connecting rods, the first connecting rods opposite to each other are fixedly connected with a second connecting rod, the second connecting rod is located below the corresponding wire, the second connecting rod can connect the two first connecting rods adjacent to each other, the right side of the first connecting rod located at the rightmost side is fixedly connected with a guide rod, the junction box is slidably sleeved on the two guide rods, the guide rod has a horizontal guiding effect on the first connecting rod at the right side, the right side of the second movable clamping plate located at the rightmost side is rotatably installed with a T-shaped screw rod, the junction box is threadedly sleeved on the T-shaped screw rod, the T-shaped screw rod is threadedly connected and can move horizontally while rotating, and a connecting seat is movably sleeved on the T-shaped screw rod.

[0009] Preferably, the side close to each other of the fixed clamping plate and the corresponding first movable clamping plate is adhesively fixed with a second rubber non-slip pad, the side close to each other of the two second rubber non-slip pads is movably contacted with the corresponding wire, and the second rubber non-slip pad can effectively reduce the slipping during clamping and fixing.

[0010] Preferably, the bottom of the box cover is adhesively fixed with a sealing pad, the bottom of the sealing pad is movably contacted with the top of the junction box, the bottom front side and the bottom rear side of the box cover are adhesively fixed with a plurality of rubber pressing strips, the sealing pad is fixedly sleeved on the plurality of rubber pressing strips, the bottom end of the rubber pressing strip extends into the corresponding U-shaped sealing sleeve and is movably contacted with the top of the wire, and the rubber pressing strip is used for pressing the corresponding wire from the top.

[0011] Preferably, the top of the junction box is provided with two bolt grooves on both sides, a T-shaped fixing bolt is threadedly sleeved in the bolt groove, and the box cover is threadedly sleeved on the four T-shaped fixing bolts, so that the connection between the box cover and the junction box can be realized through the four T-shaped fixing bolts.

[0012] Preferably, the junction box has a threaded hole on the right inner wall for threaded connection with the T-shaped screw, and a through hole is provided on the right inner wall of the rightmost connecting hole. The T-shaped screw is located in the through hole and makes movable contact with the inner wall of the through hole.

[0013] Compared with existing technologies, the beneficial effects of this utility model are:

[0014] 1. By using a multi-point clamping and fixing mechanism and rubber pressure strips, multiple sets of wires can be fixed simultaneously through multi-point clamping and upper pressure, improving fixing efficiency. In addition, with the setting of the insulating limit tube, the wires can be wrapped around the insulating limit tube twice to limit the wires. Through multi-point fixing and limiting, the situation of misalignment and separation caused by vibration during use can be effectively reduced, improving connection stability.

[0015] 2. With the U-shaped sealing sleeve and the wire hole, the wire can be placed directly into the connection hole from the top for connection. Compared with the existing technology of inserting the wire through the hole, this method is more convenient.

[0016] 3. With the heat dissipation mechanism, when the temperature inside the junction box is high, it can automatically blow air to assist in heat dissipation, which can effectively reduce the risk of accelerated wire aging due to high temperature.

[0017] This utility model, through a series of structural designs, can stably fix the connected wires by using multi-point fixing combined with insulating limiting tubes. This effectively reduces the possibility of misalignment or separation caused by vibration during use, improves connection stability, and can automatically blow air into the junction box to assist in heat dissipation and cooling, effectively reducing the risk of accelerated wire aging due to high temperatures and improving operational stability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a motor wiring connection device for coal mine electromechanical equipment proposed in this utility model;

[0019] Figure 2 for Figure 1 A schematic diagram of the right-side view structure;

[0020] Figure 3 This is a top sectional view of the wiring connection device for a motor in a coal mine electromechanical equipment according to the present invention.

[0021] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle.

[0022] In the figure: 100, electric wire; 101, threading hole; 102, U-shaped sealing sleeve; 103, wiring terminal; 1, wiring box; 2, connecting seat; 201, connecting hole; 3, insulation limiting tube; 4, heat dissipation mechanism; 401, heat dissipation fan; 402, controller; 403, temperature sensor; 404, mounting groove; 405, air blowing hole; 406, air vent; 407, filter screen; 5, multi-point clamping and fixing mechanism; 501, fixed clamping plate; 502, first movable clamping plate; 503, second movable clamping plate; 504, T-shaped screw rod; 505, first connecting rod; 506, second connecting rod; 507, arc-shaped elastic rubber pad; 508, guide rod; 6, box cover; 7, T-shaped fixing bolt; 8, rubber pressing strip. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] As Figure 1 shown:

[0025] A kind of coal mine electromechanical equipment motor wiring connection device, including the top for the open setting for connecting multiple electric wires 100 wiring box 1.

[0026] In the embodiment: to solve the technical problems existing in the prior art, as disclosed in the above background art "because coal mine electromechanical equipment motor will produce vibration in the working process, vibration force will be associated with electric wire vibration, the direct pressure line connection mode in the prior art, long time vibration, two groups of electric wires pressed contact are easily separated and misaligned, connection stability is not ideal;In addition, heat will be generated on the connecting line in the working process, and the heat dissipation effect of the wiring box is not ideal, and the rate of accelerated aging of the connecting line due to the high temperature in the wiring box", in combination with use, this problem is obviously a practical problem and is relatively difficult to solve, the power equipment involved in the product is all powered by external power supply.

[0027] Further speaking:

[0028] Referring to Figures 1-4The top of the junction box 1 is threadedly fixed with a box cover 6, the bottom of the box cover 6 is adhesively fixed with a sealing gasket, the bottom of the sealing gasket is in movable contact with the top of the junction box 1, two bolt grooves are formed in the top of the junction box 1, T-shaped fixing bolts 7 are threadedly sleeved in the bolt grooves, the box cover 6 is threadedly sleeved on the four T-shaped fixing bolts 7, four bolt holes are formed in the top of the box cover 6 and are threadedly connected with the corresponding T-shaped fixing bolts 7, the connection between the box cover 6 and the junction box 1 can be realized through the four T-shaped fixing bolts 7, the box cover 6 is used for shielding the top of the junction box 1, a connecting seat 2 is fixedly connected between the two side inner walls of the junction box 1, a connecting hole 201 with an open top is formed in the front side of the connecting seat 2, a plurality of wire penetrating holes 101 for the power wires 100 to pass through are formed in the front and rear inner walls of the junction box 1, U-shaped sealing sleeves 102 are adhesively sleeved in the wire penetrating holes 101, the U-shaped sealing sleeves 102 can seal the wire penetrating holes 101 after the wires pass through, the situation that dust enters the junction box 1 through the wire penetrating holes 101 is reduced, the wires 100 are movably sleeved in the corresponding U-shaped sealing sleeves 102, a plurality of rubber pressing strips 8 are adhesively fixed on the bottom front side and the bottom rear side of the box cover 6, the sealing gasket is fixedly sleeved on the rubber pressing strips 8, the bottom ends of the rubber pressing strips 8 extend into the corresponding U-shaped sealing sleeves 102 and are in movable contact with the tops of the wires 100, the rubber pressing strips 8 are used for pressing and fixing the corresponding wires 100 from the top, one end of the two wires 100 close to each other is extended into the corresponding connecting hole 201 and is fixedly connected with a wire terminal 103, the two wire terminals 103 are inserted into each other, and the connection between the two wires 100 is realized through the wire terminal 103;

[0029] The junction box 1 is provided with a heat dissipation mechanism 4 for assisting heat dissipation of the inside of the junction box 1. The heat dissipation mechanism 4 comprises a temperature sensor 403 fixedly connected to the inner wall of the front side of the junction box 1. The temperature sensor 403 is used for detecting the temperature of the inside of the junction box 1. The detection principle is the prior art and is not described here in detail. A controller 402 is embedded and fixed to the inner wall of the rear side of the junction box 1. A mounting groove 404 is formed in the left side of the junction box 1. A heat dissipation fan 401 is fixedly installed in the mounting groove 404. The left side of the heat dissipation fan 401 is the suction end and is fixedly connected with a dustproof net. A plurality of air blowing holes 405 are formed in the right side inner wall of the mounting groove 404. The heat dissipation fan 401 is used for sucking air and supplying the air to the inside of the junction box 1 through the air blowing holes 405. The air blowing holes 405 are obliquely arranged towards the connecting seat 2. The temperature sensor 403 and the heat dissipation fan 401 are electrically connected with the controller 402. The controller 402 receives the signal of the temperature sensor 403 to control the heat dissipation fan 401. The control principle is the prior art and is not described here in detail. Two air vents 406 are formed in the right side inner wall of the junction box 1. A filter screen 407 is fixedly installed in the air vents 406. The right side of the filter screen 407 is flush with the right side of the junction box 1. The filter screen 407 can effectively reduce the situation that the dust outside enters the inside of the junction box 1 through the air vents 406.

[0030] The bottom inner wall of the junction box 1 and the connecting seat 2 are provided with a same multi-point clamping and fixing mechanism 5 for clamping and fixing a plurality of electric wires 100, the multi-point clamping and fixing mechanism 5 comprises a plurality of fixed clamping plates 501 and a plurality of first movable clamping plates 502, the plurality of fixed clamping plates 501 are respectively arranged at the left side of the corresponding insulating limiting tube 3 and fixedly connected with the bottom inner wall of the junction box 1, the first movable clamping plate 502 is arranged at the right side of the corresponding insulating limiting tube 3, the right side of the fixed clamping plate 501 and the left side of the first movable clamping plate 502 are both provided in an arc-shaped structure, the side close to each other of the fixed clamping plate 501 and the corresponding first movable clamping plate 502 is fixedly bonded with a second rubber anti-skid pad, the sides close to each other of the two second rubber anti-skid pads are respectively in close contact with the corresponding electric wire 100, the fixed clamping plate 501 and the first movable clamping plate 502 are matched to clamp and fix the position of the electric wire 100, the second rubber anti-skid pad can effectively reduce the slipping during clamping and fixing, the left side inner wall of the connecting hole 201 is fixedly bonded with an arc-shaped elastic rubber pad 507, the right side of the arc-shaped elastic rubber pad 507 is in movable contact with the left side of the corresponding two wire terminals 103, the right side of the arc-shaped elastic rubber pad 507 is matched with a second movable clamping plate 503, the left side of the second movable clamping plate 503 is fixedly bonded with a first rubber anti-skid pad, the left side of the first rubber anti-skid pad is in movable contact with the right side of the corresponding two wire terminals 103, the arc-shaped elastic rubber pad 507, the second movable clamping plate 503 and the first rubber anti-skid pad are matched to clamp and fix the wire terminal 103 at the connecting position, the sides close to each other of the two first movable clamping plates 502 are fixedly connected with a first connecting rod 505 between the corresponding second movable clamping plate 503, the first connecting rod 505 is used to connect the first movable clamping plate 502 and the corresponding second movable clamping plate 503, the two first connecting rods 505 are fixedly connected with a second connecting rod 506 between the left and right sides, the second connecting rod 506 is located below the corresponding electric wire 100, the second connecting rod 506 can connect the two adjacent first connecting rods 505, the right side of the first connecting rod 505 located at the rightmost side is fixedly connected with a guide rod 508, the junction box 1 is slidably sleeved on the two guide rods 508, two guide grooves are formed in the right side inner wall of the junction box 1, the inner wall of the guide groove is in sliding contact with the outer side of the corresponding guide rod 508, the guide rod 508 has a horizontal guiding effect on the first connecting rod 505 at the right side, the right side of the second movable clamping plate 503 located at the rightmost side is rotatably installed with a T-shaped screw rod 504, the right side of the second movable clamping plate 503 located at the rightmost side is fixedly connected with a bearing, the inner side of the inner ring of the bearing is fixedly connected with the outer side of the T-shaped screw rod 504, the bearing has an effect of rotatably installing the T-shaped screw rod 504, the junction box 1 is threadedly sleeved on the T-shaped screw rod 504, in the threaded connection mode, the junction box 1 can move horizontally while the T-shaped screw rod 504 rotates, the connecting seat 2 is movably sleeved on the T-shaped screw rod 504,The right inner wall of the junction box 1 is provided with a threaded hole for threadedly connecting with the T-shaped screw rod 504, and the right inner wall of the rightmost connecting hole 201 is provided with a through hole, the T-shaped screw rod 504 is located in the through hole and movably contacts with the inner wall of the through hole, and the through hole is used for allowing the T-shaped screw rod 504 to pass through.

[0031] A plurality of insulating limiting tubes 3 are fixedly connected to the bottom inner wall of the junction box 1, and the electric wire 100 is wound on the corresponding insulating limiting tube 3 for two turns, and the insulating limiting tube 3 is used for limiting the corresponding electric wire 100, so that the connecting end of the electric wire 100 cannot be pulled when a pulling force is generated in the vibration process of the electric wire 100; through the setting of a series of structures, the connected electric wire 100 can be stably fixed in a way of multi-point fixing and limiting of the insulating limiting tube 3, the situation of disconnection caused by vibration in the use process can be effectively reduced, the connection stability is improved, the junction box 1 can be automatically blown to assist heat dissipation, the risk of accelerated aging of the electric wire 100 caused by high temperature can be effectively reduced, and the use stability is improved.

[0032] Working principle: when connecting the wire 100, first reverse rotate the four T-shaped fixing bolts 7, the T-shaped fixing bolts 7 rotate at the same time and separate from the corresponding threaded groove, release the fixing of the box cover 6, at this time the box cover 6 can be moved upwards to drive multiple rubber pressing strips 8 to move out from the corresponding U-shaped sealing sleeve 102 respectively, release the shielding of the U-shaped sealing sleeve 102, then the wire to be connected 100 can be directly placed in the U-shaped sealing sleeve 102 from the top of the junction box 1, and the wire 100 is wound on the corresponding insulating limiting tube 3 for two turns, after winding, the wire terminal 103 on the wire 100 is placed in the corresponding connecting hole 201, and the opposite two groups of wires 100 are connected by the wire terminal 103, after the multiple wires to be connected 100 are connected, the left side of the wire terminal 103 is in contact with the right side of the corresponding arc-shaped elastic rubber pad 507, and the left side of the wire 100 is in contact with the second rubber anti-skid pad on the corresponding fixed clamping plate 501, then rotate the T-shaped screw rod 504 in the positive direction, the T-shaped screw rod 504 rotates in the threaded hole and moves to the left, the T-shaped screw rod 504 drives the rightmost second moving clamping plate 503 to move to the left, the rightmost second moving clamping plate 503 drives the rightmost two first moving clamping plates 502 to move to the left through the rightmost two first connecting rods 505, the rightmost two first connecting rods 505 drive the second rightmost second moving clamping plate 503 and the first moving clamping plate 502 to move to the left through the second connecting rod 506 and the adjacent first connecting rod 505 connected thereto respectively, and the same is true for the following, so that the multiple second moving clamping plates 503 and the multiple first moving clamping plates 502 move to the left, the second moving clamping plate 503 and the first moving clamping plate 502 move to the left at the same time, and the corresponding wire terminal 103 and wire 100 are pressed and clamped, after fixing, move the box cover 6 downwards to drive multiple rubber pressing strips 8 to move into the corresponding U-shaped sealing sleeve 102 respectively, the rubber pressing strip 8 moves downwards at the same time, and the corresponding wire 100 is pressed and fixed downwards, when the sealing pad at the bottom of the box cover 6 is in contact with the top of the junction box 1, the four T-shaped fixing bolts 7 can be rotated in the positive direction to move to the corresponding threaded groove, so as to fix the box cover 6, and through the top pressing of the rubber pressing strip 8, combined with the three-point clamping of the clamping plate, the connected wire 100 can be effectively and stably fixed, combined with the winding and fixing on the insulating limiting tube 3, the situation of disconnection caused by vibration during use can be effectively reduced, and the connection stability is improved;

[0033] In use, the temperature threshold at which the heat dissipation fan 401 is turned on is set in advance by the controller 402, the temperature sensor 403 detects the temperature inside the junction box 1 and transmits the detected temperature value to the controller 402, when the temperature value reaches the preset threshold, the controller 402 controls the heat dissipation fan 401 to be turned on, the heat dissipation fan 401 extracts the external gas, the extracted gas is blown to the inside of the junction box 1 through a plurality of air blowing holes 405, under the blowing of the gas, the flow speed of the heat gas inside the junction box 1 is accelerated, so that the heat gas inside the junction box 1 is discharged to the outside through two air holes 406, with the blowing auxiliary heat dissipation, the temperature inside the junction box 1 gradually decreases, when the temperature is lower than the preset value, the controller 402 controls the heat dissipation fan 401 to be turned off, through the auxiliary heat dissipation cooling of the inside of the junction box 1, the risk of accelerated aging of the electric wire 100 due to high temperature can be effectively reduced, and the use stability is improved.

[0034] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A coal mine electromechanical equipment motor wiring connection device, comprising a wiring box (1) provided with an open top for connecting a plurality of wires (100), a box cover (6) is threadedly fixed to the top of the wiring box (1), characterized in that, The connecting seat (2) is fixedly connected between the two side inner walls of the junction box (1), the front side of the connecting seat (2) is provided with a connecting hole (201) with an open top, the front side inner wall and the rear side inner wall of the junction box (1) are both provided with a plurality of wire passing holes (101) for the power lines (100) to pass through, the wire passing holes (101) are adhesively sleeved with U-shaped sealing sleeves (102), the power lines (100) are movably sleeved in the corresponding U-shaped sealing sleeves (102), the ends of the two power lines (100) close to each other are both extended into the corresponding connecting holes (201) and fixedly connected with the junction terminals (103), the two junction terminals (103) are inserted with each other, the junction box (1) is provided with a heat dissipation mechanism (4) for assisting heat dissipation in the junction box (1), the bottom inner wall of the junction box (1) and the connecting seat (2) are provided with the same multi-point clamping and fixing mechanism (5) for clamping and fixing the plurality of power lines (100), the bottom inner wall of the junction box (1) is fixedly connected with a plurality of insulating limiting tubes (3), and the power lines (100) are wound on the corresponding insulating limiting tubes (3) for two turns.

2. A coal mine electromechanical equipment motor wiring connection device according to claim 1, characterized in that, The heat dissipation mechanism (4) comprises a temperature sensor (403) fixedly connected to the front side inner wall of the junction box (1), a controller (402) embedded and fixed to the rear side inner wall of the junction box (1), a mounting groove (404) formed in the left side of the junction box (1), a heat dissipation fan (401) fixedly installed in the mounting groove (404), the left side of the heat dissipation fan (401) being a suction end and being fixedly connected with a dustproof net, a plurality of air blowing holes (405) formed in the right side inner wall of the mounting groove (404), the air blowing holes (405) being inclinedly arranged towards the connecting seat (2), the temperature sensor (403) and the heat dissipation fan (401) being electrically connected with the controller (402), and two air vent holes (406) formed in the right side inner wall of the junction box (1), the air vent holes (406) being fixedly installed with filter nets (407).

3. A coal mine electromechanical equipment motor wiring connection device according to claim 1, characterized in that, The multi-point clamping fixing mechanism (5) comprises a plurality of fixed clamping plates (501) and a plurality of first movable clamping plates (502), the plurality of fixed clamping plates (501) are respectively arranged on the left side of the corresponding insulating limiting pipe (3) and are fixedly connected with the inner wall of the bottom of the junction box (1), the first movable clamping plate (502) is arranged on the right side of the corresponding insulating limiting pipe (3), the right side of the fixed clamping plate (501) and the left side of the first movable clamping plate (502) are both provided in an arc-shaped structure, an arc-shaped elastic rubber pad (507) is fixedly bonded on the left side inner wall of the connecting hole (201), the right side of the arc-shaped elastic rubber pad (507) is movably contacted with the left side of the corresponding two wire terminals (103), the right side of the arc-shaped elastic rubber pad (507) is provided with a second movable clamping plate (503) in a matched mode, a first rubber anti-skid pad is fixedly bonded on the left side of the second movable clamping plate (503), the left side of the first rubber anti-skid pad is movably contacted with the right side of the corresponding two wire terminals (103), a first connecting rod (505) is fixedly connected between the side, where the two first movable clamping plates (502) opposite to each other, and the corresponding second movable clamping plate (503), a second connecting rod (506) is fixedly connected between the two first connecting rods (505) opposite to each other, the second connecting rod (506) is located below the corresponding electric wire (100), a guide rod (508) is fixedly connected to the right side of the first connecting rod (505) located at the rightmost side, the junction box (1) is slidably sleeved on the two guide rods (508), a T-shaped screw rod (504) is rotatably installed on the right side of the second movable clamping plate (503) located at the rightmost side, the junction box (1) is threadedly sleeved on the T-shaped screw rod (504), and the connecting seat (2) is movably sleeved on the T-shaped screw rod (504).

4. A coal mine electromechanical equipment motor wiring connection device according to claim 3, characterized in that, The side, where the fixed clamping plate (501) and the corresponding first movable clamping plate (502) are close to each other, is fixedly bonded with a second rubber anti-skid pad, and the side, where the two second rubber anti-skid pads are close to each other, is movably contacted with the corresponding electric wire (100).

5. A coal mine electromechanical equipment motor wiring connection device according to claim 1, characterized in that, The bottom of the box cover (6) is fixedly bonded with a sealing pad, the bottom of the sealing pad is movably contacted with the top of the junction box (1), the bottom front side and the bottom rear side of the box cover (6) are fixedly bonded with a plurality of rubber pressing strips (8), the sealing pad is fixedly sleeved on the plurality of rubber pressing strips (8), and the bottom end of the rubber pressing strip (8) extends into the corresponding U-shaped sealing sleeve (102) and is movably contacted with the top of the electric wire (100).

6. A coal mine electromechanical equipment motor wiring connection device according to claim 1, characterized in that, Two bolt grooves are formed in the top of the junction box (1) on both sides, T-shaped fixing bolts (7) are threadedly sleeved in the bolt grooves, and the box cover (6) is threadedly sleeved on the four T-shaped fixing bolts (7).

7. A coal mine electromechanical equipment motor wiring connection device according to claim 3, characterized in that, A threaded hole in threaded connection with the T-shaped screw rod (504) is formed in the right inner wall of the junction box (1), and a through hole is formed in the right inner wall of the connecting hole (201) located at the rightmost side, the T-shaped screw rod (504) is located in the through hole and movably contacted with the inner wall of the through hole.

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