A connection device for a soft mobile DC cable for mining and a method of using the same

Abstract

The present application relates to the technical field of cable installation, and in particular to a connection device for a soft mobile DC cable for mining, which comprises a base, which is horizontally arranged and moves horizontally along the length direction of a mine tunnel, and the base is provided with a rolling mechanism, which is used to realize the horizontal displacement of the base, and the base is provided with a reeling mechanism, which comprises a driving motor and a reeling roller, which is rotatably supported on the base, and the driving motor is coaxially arranged with the reeling roller, and the base is also provided with a cleaning mechanism, which is located at the rear end of the reeling mechanism, and is used to clean the cable, and the front end of the base is also provided with a cleaning mechanism, which comprises a rotating roller, a bucket and a collecting box, the rotating roller is rotatably supported on the bottom of the base, the bucket is installed on the rotating roller, the bucket is tangent to the ground, the collecting box is located on one side of the rotating roller, and the collecting box is used to collect coal mine slag.

Description

Technical Field

[0001] The present application relates to the technical field of cable installation, and in particular to a connection device for a soft mobile DC cable for mining and a method for using the same. Background Art

[0002] Mining soft mobile DC cable is a cable specially designed for use in mining environments. It has good flexibility and mobility and can adapt to the mobility of mining equipment in complex environments. When installing and laying traditional mining soft mobile DC cables, it is necessary to go down to the bottom of the coal mine to lay the cables. Since the material used for coal mine cables is relatively heavy, manual laying requires a lot of manpower. At the same time, when mining cables need to be recycled, various impurities will be attached to their surface, making them inconvenient to store.

[0003] In the related technology, the Chinese utility model patent with patent number CN202221931864.1 discloses a mechanical self-moving device for coal mine coal machine cables, which can easily and conveniently transport mining cables, brush them when they are recycled, and facilitate storage and laying.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following problems exist: when the cable is unwinding, if the operation is improper or the ground conditions are poor, the friction between the cable and the ground or other objects may cause wear of the outer sheath, especially in a mining environment, where the ground may contain sharp gravel or slag, which increases the risk of cable wear. Summary of the invention

[0005] In order to reduce the wear of the cable during laying, the present application provides a connection device for a soft mobile DC cable for mining and a method of using the same.

[0006] The present application provides a connection device for a mining soft mobile DC cable and a method for using the same, which adopts the following technical solutions:

[0007] A connection device for a soft mobile DC cable for mining, comprising a base, the base is horizontally arranged and moves horizontally along the length direction of a mine tunnel, the base is provided with a rolling mechanism, the rolling mechanism is used to realize the horizontal displacement of the base, the base is provided with a reeling mechanism, the reeling mechanism comprises a driving motor and a reeling roller, the reeling roller is rotatably carried on the base, the driving motor is coaxially arranged with the reeling roller, the base is also provided with a cleaning mechanism, the cleaning mechanism is located at the rear end of the reeling mechanism, the cleaning mechanism is used to clean the cable, the front end of the base is also provided with a cleaning mechanism, the cleaning mechanism comprises a rotating roller, a bucket and a collecting box, the rotating roller is rotatably carried on the bottom of the base, the bucket is installed on the rotating roller, the bucket is tangent to the ground, the collecting box is located on one side of the rotating roller, and the collecting box is used to collect coal mine slag.

[0008] Preferably, a first pulley transmission mechanism is arranged between the driving motor and the rotating roller, one of the pulleys of the first pulley transmission mechanism is coaxially arranged with the output shaft of the driving motor, and the other pulley of the first pulley transmission mechanism is coaxially arranged with the rotating roller.

[0009] Preferably, a material trough is provided on the top side wall of the collecting box, and the material trough is arranged at an angle, one end of the material trough is close to the rotating roller, and a clearance opening is provided at one end of the material trough, and a receiving plate is hinged in the clearance opening through a torsion spring. When the bucket rotates a certain angle, the bucket and the receiving plate are displaced relative to each other until the bucket passes over the receiving plate, and the other end of the material trough is located on one side of the opening of the collecting box.

[0010] Preferably, the rolling mechanism includes two rotating shafts and four rollers, the two rotating shafts are rotatably supported on the front and rear ends of the base, the four rollers are respectively installed on the two ends of the rotating shafts in pairs, a second pulley transmission mechanism is arranged between the driving motor and one of the rotating shafts, and a third pulley transmission mechanism is arranged between the two rotating shafts.

[0011] Preferably, an auxiliary wire feeding mechanism is also provided on the base, and the auxiliary wire feeding mechanism includes a crank-connecting rod slider mechanism and a clamping cylinder. The turntable of the crank-connecting rod slider mechanism is rotatably carried on the base, and a fourth pulley transmission mechanism is provided between the turntable of the crank-connecting rod slider mechanism and the output shaft of the driving motor. The slider of the crank-connecting rod slider mechanism is slidably provided on the base in a horizontal direction, and the clamping cylinder is installed on the slider of the crank-connecting rod slider mechanism, and the clamping cylinder clamps the cable.

[0012] Preferably, the cleaning mechanism includes a stand, two cleaning brush rollers and two mutually meshing transmission gears, the stand is mounted on the upper surface of the base, the two cleaning brush rollers are rotatably supported on the stand, the two cleaning brush rollers are spaced apart in the vertical direction, one of the transmission gears is coaxially arranged with one of the cleaning brush rollers, the other transmission gear is coaxially arranged with the remaining cleaning brush roller, and a fifth pulley transmission mechanism is arranged between the output shaft of the drive motor and one of the cleaning brush rollers.

[0013] Preferably, the stand is provided with a collecting trough, and the collecting trough is located below the cleaning brush roller. A guide tube is provided at the bottom of the stand, one end of the guide tube is connected to the collecting trough, and the other end of the guide tube is connected to the collecting box. A scraper is slidably provided inside the stand, and the scraper is movably sleeved on the cleaning brush roller.

[0014] Preferably, a T-slot is provided on the lower surface of the base, a T-bar is fixed on the top of the collection box, the T-bar is plug-fitted with the T-slot, a pin is slidably provided on the upper surface of the base, a socket is provided on the top of the T-bar, and the pin is plug-fitted with the socket.

[0015] Preferably, the side wall of the collection box is provided with an observation window.

[0016] A method for using a connection device for a soft mobile DC cable for use in a mine is implemented by using the connection device for a soft mobile DC cable for use in a mine, and comprises the following steps:

[0017] S1: Move the connecting device to the starting point of cable laying, ensure that the rolling mechanism on the base is in good contact with the mine ground, and prepare to start the cable laying work;

[0018] S2: Start the drive motor of the unwinding mechanism, control the unwinding roller to rotate, and start to unwind the cable smoothly. At the same time, the cleaning mechanism starts to work, cleaning the surface of the cable to remove impurities that may be attached;

[0019] S3: During the cable laying process, the rotating roller of the cleaning mechanism drives the bucket to contact the ground, removes the coal mine debris on the ground, ensures the cleanliness of the cable laying path, and reduces the friction and wear between the cable and the ground;

[0020] S4: As the base moves horizontally along the length of the mine, the cable is laid smoothly on the cleaned ground. The operator should monitor the cable laying process to ensure the quality of the cable laying, pay attention to the operating status of the device, and deal with possible problems in a timely manner.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. By cleaning the ground before laying the cable and cleaning the cable surface during the cable laying process, the direct contact between the cable and the debris on the ground is effectively reduced, thereby significantly reducing the risk of cable wear in the mine environment and increasing the service life of the cable;

[0023] 2. The device integrates functions such as cable unwinding, ground sweeping and cable cleaning, which simplifies the cable laying process and improves work efficiency. At the same time, by controlling the unwinding speed and tension of the cable, it ensures the smooth laying of the cable, reduces the safety hazards caused by improper cable laying, and improves the safety of cable laying. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a connection device for a soft mobile DC cable for mining in an embodiment of the present application.

[0025] Figure 2 yes Figure 1 A structural schematic diagram of a connection device of a soft mobile DC cable for mining from another perspective.

[0026] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0027] Description of reference numerals: 1, base; 1a, carrier frame; 1b, carrier seat; 1c, carrier platform; 1d guide rod; 1e, mounting seat; 1e1, T-slot; 1f, latch; 2, rolling mechanism; 21, rotating shaft; 22, roller; 3, unwinding mechanism; 31, driving motor; 32, unwinding roller; 4, cleaning mechanism; 41, stand; 411, scraper; 412, sliding groove; 413, guide tube; 42, cleaning brush roller; 43, transmission gear; 5 , cleaning mechanism; 51, rotating roller; 52, bucket; 53, collecting box; 531, material trough; 532, carrying plate; 533, T-bar; 534, observation window; 6, auxiliary wire feeding mechanism; 61, crank-connecting rod slider mechanism; 611, guide groove; 62, clamping claw cylinder; 7, first pulley transmission mechanism; 8, second pulley transmission mechanism; 9, third pulley transmission mechanism; 10, fourth pulley transmission mechanism; 11, fifth pulley transmission mechanism. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0029] Reference Figure 1 and Figure 2The embodiment of the present application discloses a connection device for a soft mobile DC cable for mining, which is used for laying and installing cables in mines, and includes a base 1. The base 1 is provided with a rolling mechanism 2, a reeling mechanism 3, a cleaning mechanism 4, a sweeping mechanism 5 and an auxiliary wire feeding mechanism 6. The rolling mechanism 2 is used to assist the base 1 in horizontal displacement in the mine, the reeling mechanism 3 is used to realize the cable unwinding, the cleaning mechanism 4 is used to clean the cable, the sweeping mechanism 5 is used to sweep the coal mine debris on the ground of the mine, and the auxiliary wire feeding mechanism 6 is used to assist the reeling mechanism 3 in unwinding.

[0030] Specifically, the base 1 is arranged in a rectangular parallelepiped shape, and the base 1 is horizontally erected above the ground of the mine. A rolling mechanism 2 is installed at the bottom of the base 1, and the rolling mechanism 2 includes two rotating shafts 21 and four rollers 22. The two rotating shafts 21 are arranged at intervals along the length direction of the base 1, and the rotating shafts 21 are arranged along the width direction of the base 1. One of the rotating shafts 21 is rotatably carried on the front side of the base 1, and correspondingly, two of the rollers 22 are coaxially fixed at both ends of the rotating shaft 21, and the other rotating shaft 21 is rotatably carried on the rear side of the base 1, and the other two rollers 22 are coaxially fixed at both ends of the rotating shaft 21. In addition, a third pulley transmission mechanism 9 is arranged between the two rotating shafts 21, and the two pulleys of the third pulley transmission mechanism 9 are coaxially fixed with the two rotating shafts 21, respectively. Therefore, only one of the rotating shafts 21 needs to be driven to rotate to realize the rolling of the four rollers 22, so as to drive the base 1 to move.

[0031] Correspondingly, the unwinding mechanism 3 includes a driving motor 31 and an unwinding roller 32. Two bearing frames 1a are installed on the upper surface of the base 1. The two bearing frames 1a are parallel to each other and arranged along the width direction of the base 1. The driving motor 31 is installed on the side wall of one of the bearing frames 1a. The unwinding roller 32 is rotatably carried on the opposite side walls of the two bearing frames 1a. At the same time, a second pulley transmission mechanism 8 is arranged between the driving motor 31 and one of the rotating shafts 21. One of the pulleys of the second pulley transmission mechanism 8 is coaxially fixed on the output shaft of the driving motor 31, and the other pulley of the second pulley transmission mechanism 8 is coaxially fixed on one of the rotating shafts 21. Therefore, when the output shaft of the driving motor 31 rotates, the unwinding roller 32 unwinds the cable. At the same time, under the action of the second pulley transmission mechanism 8, one of the rotating shafts 21 rotates. Due to the transmission of the third pulley transmission mechanism 9, the two rotating shafts 21 rotate synchronously, and the four rollers 22 roll to realize the movement of the base 1, so as to synchronously cooperate with the unwinding roller 32 to lay and install the cable.

[0032] Furthermore, the auxiliary wire feeding mechanism 6 includes a crank-connecting rod slider mechanism 61 and a clamping cylinder 62. A bearing seat 1b is fixed to the upper surface of the base 1. The turntable of the crank-connecting rod slider mechanism 61 is rotatably supported on the bearing seat 1b. A fourth pulley transmission mechanism 10 is arranged between the turntable of the crank-connecting rod slider mechanism 61 and the output shaft of the driving motor 31. Specifically, one of the pulleys of the fourth pulley transmission mechanism 10 is coaxially fixed with the output shaft of the driving motor 31, and the other pulley of the fourth pulley transmission mechanism 10 is coaxially fixed with the turntable of the crank-connecting rod slider mechanism 61.

[0033] In addition, the slider of the crank-connecting rod slider mechanism 61 is slidably arranged on the base 1 in the horizontal direction, and a bearing platform is fixed on the upper surface of the base 1, and the bearing platform is used to bear the slider of the crank-connecting rod slider mechanism 61. At the same time, a guide rod is fixed on the upper surface of the base 1, and a guide groove 611 is provided on the side wall of the slider of the crank-connecting rod slider mechanism 61. The guide rod slides relatively in the guide groove 611, and the clamping cylinder 62 is installed on the slider of the crank-connecting rod slider mechanism 61, and the clamping cylinder 62 clamps the cable.

[0034] Therefore, when the driving motor 31 is started, the unwinding roller 32 unwinds synchronously, and under the transmission of the fourth pulley transmission mechanism 10, the turntable of the crank-connecting rod slider mechanism 61 rotates, thereby driving the slider of the crank-connecting rod slider mechanism 61 to move horizontally, and cooperates with the release and clamping of the clamping claw cylinder 62 to pull the cable outward, and cooperate with the unwinding roller 32 to assist in unwinding. In this process, the guiding effect of the guide rod and the guide groove 611 limits the movement trajectory of the slider, thereby indirectly improving the stability of unwinding.

[0035] On the other hand, the cleaning mechanism 5 includes a rotating roller 51, a bucket 52 and a collecting box 53. The rotating roller 51 is rotatably supported at the bottom of the base 1, and the bucket 52 is installed on the rotating roller 51. The bucket 52 is tangent to the ground. In the present embodiment, two buckets 52 are provided, and the two buckets 52 are centrally symmetrically arranged on the rotating roller 51. The bucket 52 is connected to the rotating roller 51 by an elastic telescopic rod. The collecting box 53 is located on one side of the rotating roller 51, and the collecting box 53 is used to collect coal mine slag.

[0036] Therefore, by controlling the rotation of the rotating roller 51, the bucket 52 can shovel the coal mine debris on the mine floor into the collection box 53, effectively reducing the direct contact between the cable and the debris on the ground, thereby significantly reducing the risk of cable wear in the mine environment and increasing the service life of the cable.

[0037] Specifically, a first pulley transmission mechanism 7 is arranged between the driving motor 31 and the rotating roller 51 , one of the pulleys of the first pulley transmission mechanism 7 is coaxially arranged with the output shaft of the driving motor 31 , and the other pulley of the first pulley transmission mechanism 7 is coaxially arranged with the rotating roller 51 .

[0038] Therefore, when the drive motor 31 is started and controls the unwinding roller 32 to unwind, the base 1 moves synchronously. At the same time, under the drive of the first pulley transmission mechanism 7, the rotating roller 51 rotates to clean the ground on the front side of the base 1 synchronously. The three steps are carried out synchronously, thereby improving the overall cable laying efficiency.

[0039] Furthermore, a material trough 531 is provided on the top side wall of the collecting box 53. The material trough 531 is hinged to the collecting box 53 and locked by a pin shaft. The material trough 531 is inclined. One end of the material trough 531 is close to the rotating roller 51, and the other end of the material trough 531 is located on the side of the opening of the collecting box 53. Correspondingly, the end of the material trough 531 close to the rotating roller 51 is inclined downward from the end of the material trough 531 close to the collecting box 53.

[0040] In addition, a clearance opening is provided at one end of the material trough 531, and a receiving plate is hinged in the clearance opening through a torsion spring. When the bucket 52 rotates to a certain angle, the bucket 52 and the receiving plate are displaced relative to each other until the bucket 52 passes over the receiving plate. During this process, due to the action of gravity, the coal slag in the bucket 52 falls into the material trough 531 and slides into the collection box 53. After the bucket 52 passes over the receiving plate, due to the elastic force of the torsion spring, the load-bearing plate 532 is reset and the clearance opening is re-blocked accordingly, so that the coal slag can fall normally.

[0041] On the other hand, the cleaning mechanism 4 includes a stand 41, two cleaning brush rollers 42, and two mutually meshing transmission gears 43. The stand 41 is mounted on the upper surface of the base 1, and the two cleaning brush rollers 42 are rotatably supported on the stand 41. The two cleaning brush rollers 42 are spaced apart in the vertical direction, one of the transmission gears 43 is coaxially arranged with one of the cleaning brush rollers 42, and the other transmission gear 43 is coaxially arranged with the remaining cleaning brush roller 42. A fifth pulley transmission mechanism 11 is arranged between the output shaft of the drive motor 31 and one of the cleaning brush rollers 42.

[0042] Specifically, one of the pulleys of the fifth pulley transmission mechanism 11 is coaxially fixed to the output shaft of the driving motor 31 , and the other pulley of the fifth pulley transmission mechanism 11 is coaxially fixed to one of the cleaning brush rollers 42 .

[0043] Therefore, when the output shaft of the driving motor 31 rotates, one of the cleaning brush rollers 42 rotates under the drive of the fifth pulley transmission mechanism 11, and the other cleaning brush roller 42 rotates synchronously under the drive of the two transmission gears 43, so that the cables passing through the two cleaning brush rollers 42 can be cleaned.

[0044] Reference Figure 2 and Figure 3Furthermore, the stand 41 is provided with a collecting trough, which is located below the cleaning brush roller 42. A guide tube 413 is provided at the bottom of the stand 41, one end of the guide tube 413 is connected to the collecting trough, and the other end of the guide tube 413 is connected to the collecting box 53. A scraper 411 is slidably provided in the stand 41, and the scraper 411 is movably sleeved on the cleaning brush roller 42. A sliding groove 412 is provided on the stand 41, and the sliding groove 412 is provided along the width direction of the base 1. The scraper 411 is slidably provided in the sliding groove 412 along the horizontal direction.

[0045] Correspondingly, when the cleaning mechanism 4 is idle, the operator can control the scraper 411 to slide in the horizontal direction, thereby scraping off the dirt or coal mine debris on the surface of the cleaning brush roller 42. The cleaned coal mine debris can fall into the collecting trough and flow into the collecting box 53 through the guide pipe 413, thereby completing the collection of the coal mine debris.

[0046] Furthermore, a mounting seat 1e is fixed to the lower surface of the base 1, and a T-slot 1e1 is provided on the mounting seat 1e. A T-bar 533 is fixed to the top of the collection box 53, and the T-bar 533 is plugged into the T-slot 1e1. A pin 1f is slidably provided on the upper surface of the base 1, and a socket (not shown in the figure) is provided on the top of the T-bar 533. The pin 1f is plugged into the socket, thereby realizing the installation of the collection box 53.

[0047] In addition, an observation window 534 is provided on the side wall of the collection box 53. In this embodiment, the observation window 534 is made of a transparent acrylic plate. The operator can observe the reserves of the coal mine slag in the collection box 53 through the observation window 534, thereby facilitating the control and processing of the coal mine slag.

[0048] On the other hand, the embodiment of the present application further discloses a method for using a connection device of a soft mobile DC cable for mining, which is implemented by using the connection device of the soft mobile DC cable for mining, and includes the following steps:

[0049] S1: Move the connecting device to the starting point of cable laying, ensure that the rolling mechanism 2 on the base 1 is in good contact with the mine ground, and prepare to start the cable laying work;

[0050] S2: Start the drive motor 31 of the unwinding mechanism 3, control the unwinding roller 32 to rotate, and start to unwind the cable steadily. At the same time, the cleaning mechanism 4 starts to work, cleaning the surface of the cable to remove impurities that may be attached;

[0051] S3: During the cable laying process, the rotating roller 51 of the cleaning mechanism 5 drives the bucket 52 to contact the ground, removes the coal mine debris on the ground, ensures the cleanliness of the cable laying path, and reduces the friction and wear between the cable and the ground;

[0052] S4: As the base 1 moves horizontally along the length of the mine, the cable is laid steadily on the cleaned ground. The operator should monitor the cable laying process to ensure the quality of the cable laying, pay attention to the operating status of the device, and deal with possible problems in a timely manner.

[0053] The implementation principle of the connection device of a mining soft mobile DC cable in the embodiment of the present application is:

[0054] The rolling mechanism 2 of the base 1 enables the device to move smoothly in the mine. The driving motor 31 in the unwinding mechanism 3 controls the unwinding roller 32 to rotate, releasing the cable at a constant speed. At the same time, the cleaning mechanism 4 removes impurities on the surface of the cable to ensure that the cable is clean. The rotating roller 51 of the cleaning mechanism 5 drives the bucket 52 to remove the coal mine debris on the ground, and the collection box 53 collects the debris to reduce the friction and wear between the cable and the ground. The entire device ensures efficient and safe laying of the cable in the mine through the integrated unwinding, cleaning and sweeping functions, while reducing cable wear and improving the service life and safety of the cable.

[0055] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A connection device for a soft mobile DC cable for mining, characterized in that: The invention comprises a base (1), wherein the base (1) is arranged horizontally and moves horizontally along the length direction of the mine hole, the base (1) is provided with a rolling mechanism (2), the rolling mechanism (2) is used to realize the horizontal displacement of the base (1), the base (1) is provided with an unwinding mechanism (3), the unwinding mechanism (3) comprises a driving motor (31) and an unwinding roller (32), the unwinding roller (32) is rotatably supported on the base (1), the driving motor (31) and the unwinding roller (32) are arranged coaxially, and the base (1) is also provided with a cleaning mechanism (4), the cleaning mechanism (5) is provided with a cleaning mechanism (6) and the cleaning mechanism (7) is provided with a cleaning mechanism (8) and the cleaning mechanism (9) is provided with a cleaning mechanism (10) and the cleaning mechanism (11) is provided with a cleaning mechanism (12) and the cleaning mechanism (13) is provided with a cleaning mechanism (14) and the cleaning mechanism (9) is provided with a cleaning mechanism (15) and the cleaning mechanism (9) is provided with a cleaning mechanism (10) and the cleaning mechanism (9) is provided with a cleaning mechanism (11) and the cleaning mechanism (9) is provided with a cleaning mechanism (10 ... The mechanism (4) is located at the rear end of the unwinding mechanism (3), the cleaning mechanism (4) is used to clean the cable, and the front end of the base (1) is also provided with a cleaning mechanism (5), the cleaning mechanism (5) comprises a rotating roller (51), a bucket (52) and a collecting box (53), the rotating roller (51) is rotatably supported on the bottom of the base (1), the bucket (52) is installed on the rotating roller (51), the bucket (52) is tangent to the ground, and the collecting box (53) is located on one side of the rotating roller (51), and the collecting box (53) is used to collect coal mine slag; The top side wall of the collection box (53) is provided with a material trough (531), the material trough (531) is arranged in an inclined manner, one end of the material trough (531) is close to the rotating roller (51), one end of the material trough (531) is provided with a clearance opening, a receiving plate is hinged in the clearance opening through a torsion spring, when the bucket (52) rotates a certain angle, the bucket (52) and the receiving plate are displaced relative to each other until the bucket (52) passes over the receiving plate, and the other end of the material trough (531) is located on one side of the opening of the collection box (53); The base (1) is also provided with an auxiliary wire feeding mechanism (6), which comprises a crank-connecting rod slider mechanism (61) and a clamping claw cylinder (62). The turntable of the crank-connecting rod slider mechanism (61) is rotatably supported on the base (1), a fourth pulley transmission mechanism (10) is provided between the turntable of the crank-connecting rod slider mechanism (61) and the output shaft of the drive motor (31), the slider of the crank-connecting rod slider mechanism (61) is slidably provided on the base (1) along a horizontal direction, the clamping claw cylinder (62) is installed on the slider of the crank-connecting rod slider mechanism (61), and the clamping claw cylinder (62) clamps the cable.

2. A connection device for a soft mobile DC cable for mining according to claim 1, characterized in that: A first pulley transmission mechanism (7) is arranged between the driving motor (31) and the rotating roller (51), one of the pulleys of the first pulley transmission mechanism (7) is coaxially arranged with the output shaft of the driving motor (31), and the other pulley of the first pulley transmission mechanism (7) is coaxially arranged with the rotating roller (51).

3. The connection device of a soft mobile DC cable for mining according to claim 1 is characterized in that: The rolling mechanism (2) comprises two rotating shafts (21) and four rollers (22), the two rotating shafts (21) are rotatably supported at the front and rear ends of the base (1), the four rollers (22) are respectively installed at the two ends of the rotating shafts (21), a second pulley transmission mechanism (8) is arranged between the driving motor (31) and one of the rotating shafts (21), and a third pulley transmission mechanism (9) is arranged between the two rotating shafts (21).

4. The connection device of a soft mobile DC cable for mining according to claim 1 is characterized in that: The cleaning mechanism (4) comprises a stand (41), two cleaning brush rollers (42) and two mutually meshing transmission gears (43), wherein the stand (41) is mounted on the upper surface of the base (1), the two cleaning brush rollers (42) are rotatably supported on the stand (41), the two cleaning brush rollers (42) are arranged at intervals in the vertical direction, one of the transmission gears (43) is coaxially arranged with one of the cleaning brush rollers (42), and the other transmission gear (43) is coaxially arranged with the remaining cleaning brush roller (42), and a fifth pulley transmission mechanism (11) is arranged between the output shaft of the drive motor (31) and one of the cleaning brush rollers (42).

5. A connection device for a soft mobile DC cable for mining according to claim 4, characterized in that: The stand (41) is provided with a collecting trough, and the collecting trough is located below the cleaning brush roller (42). A guide tube (413) is provided at the bottom of the stand (41), one end of the guide tube (413) is connected to the collecting trough, and the other end of the guide tube (413) is connected to the collecting box (53). A scraper (411) is slidably provided inside the stand (41), and the scraper (411) is movably sleeved on the cleaning brush roller (42).

6. The connection device of a soft mobile DC cable for mining according to claim 1 is characterized in that: The lower surface of the base (1) is provided with a T-shaped groove (1e1), the top of the collection box (53) is fixed with a T-shaped bar (533), the T-shaped bar (533) is plugged into the T-shaped groove (1e1), the upper surface of the base (1) is slidably provided with a plug pin (1f), the top of the T-shaped bar (533) is provided with a plug hole, the plug pin (1f) is plugged into the plug hole.

7. The connection device of a soft mobile DC cable for mining according to claim 1, characterized in that: The side wall of the collection box (53) is provided with an observation window (534).

8. A method for using a connection device for a soft mobile DC cable for use in a mine, which is implemented by using a connection device for a soft mobile DC cable for use in a mine as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Move the connecting device to the starting point of cable laying, ensure that the rolling mechanism (2) on the base (1) is in good contact with the mine ground, and prepare to start the cable laying work; S2: starting the driving motor (31) of the unwinding mechanism (3), controlling the unwinding roller (32) to rotate, and starting to smoothly unwind the cable. At the same time, the cleaning mechanism (4) starts to work, cleaning the surface of the cable to remove impurities that may be attached; S3: During the cable laying process, the rotating roller (51) of the cleaning mechanism (5) drives the bucket (52) to contact the ground, remove the coal mine debris on the ground, ensure the cleanliness of the cable laying path, and reduce the friction and wear between the cable and the ground; S4: As the base (1) moves horizontally along the length of the mine, the cable is laid steadily on the cleaned ground. The operator should monitor the cable laying process to ensure the quality of the cable laying, pay attention to the operating status of the device, and deal with possible problems in a timely manner.

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