Belt conveyor belt replacement device and replacement process thereof

Abstract

A belt conveyor belt replacement device, comprising a belt clamping and unclamping mechanism (1), a belt take-up and pay-off mechanism (2), a belt cutting mechanism (3), and a belt winding mechanism (4). The belt cutting mechanism can be water-cooled by a water cooling unit (37) when cutting a belt, thereby preventing a blade (36a) from generating harmful gas due to the generation of heat by the friction between the blade (36a) and the belt; the take-up and pay-off mechanism hydraulically drives upper and lower tracked chassis (24, 25) to clamp an old belt, then a hydraulic motor drives the upper and lower tracked chassis to pull out the old belt by means of friction, the force bearing area of the belt is large when the belt is pulled, so that the belt is not prone to deformation or damage under stress when pulled, and at the same time, the upper and lower tracked chassis are continuously in a pressing state when the belt is pulled, so that the belt is not prone to falling off and deviation, and safety is higher; the belt take-up and pay-off mechanism is used to pull the belt, the tail end of the belt does not need to be provided with a fastener and a connecting winch, so that the old belt can be wound while the belt is pulled, thereby improving belt replacement efficiency. Also provided is a belt replacement process of the belt conveyor belt replacement device.

Description

A belt conveyor belt replacement device and replacement process thereof Technical Field

[0001] The invention relates to the field of belt conveyor belt replacement, in particular to a belt conveyor rubber belt replacement device and a replacement process thereof. Background Art

[0002] As mine production capacity in my country continues to increase, belt conveyors, the primary tandem transport system for coal flow, present significant maintenance challenges, particularly those operating at steep angles and over long distances. When replacing components such as drive pulleys, idlers, and belts, the inclined belts often require clamping (to prevent them from running), loosening (maintenance), cutting (preparing for belt replacement), collecting and winding old belts, and laying new belts. For a long time, these operations have primarily been manual, supplemented by simple tools or devices. On-site operations are not only time-consuming and labor-intensive, but also highly prone to serious accidents. Technical issues

[0003] When cutting old tape during the tape change process, the traditional method is to use a grinding wheel cutter for friction cutting. The frictional heat generated by the grinding wheel during cutting will produce a large amount of harmful gases such as SO2, which will cause damage to the health of workers. When the grinding wheel cuts the wire rope core tape, a large amount of sparks will also be generated, making this cutting equipment unusable for underground operations.

[0004] The traditional belt pulling method involves attaching a buckle to one end of the cut tape and then using a winch to pull the tape out. This method works fine for short-distance belt conveyors, but for long-distance, high-angle belt conveyors, the buckle interface can easily tear when the winch is used to pull the belt, leading to belt slippage.

[0005] The traditional method for rewinding old tape is to use an electric motor to drive the tape reel through a speed reducer. As the rewinding radius increases, the tape reeling speed also increases, leading to a mismatch between the pull-off and take-up speeds. When the rewinder's tape reeling speed is less than (or greater than) the pull-off speed, tape accumulation (tape motor overload) can occur, requiring frequent stops for tape changes. Consequently, this method significantly limits tape change efficiency. Technical Solutions

[0006] In view of the problems in the prior art, the present invention provides a belt conveyor belt replacing device and a replacing process thereof.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a belt conveyor belt replacement device, including a belt clamping and loosening mechanism, a belt retracting and unreeling mechanism, a belt cutting mechanism, and a belt winding mechanism. The belt clamping and loosening mechanism is installed on the belt conveyor for clamping and loosening the belt, the belt cutting mechanism is used to cut and shear the belt, the belt retracting and unreeling mechanism is installed on the belt conveyor for collecting old tape and placing new tape, and the belt winding mechanism is arranged at one end of the belt conveyor for winding up the old tape.

[0008] Furthermore, the clamping and loosening belt mechanism includes a column, an upper fixed seat, a lower fixed seat, an upper clamping body, a lower clamping body, a first hydraulic cylinder, a second hydraulic cylinder, a stepping belt hydraulic cylinder, a ratchet transmission unit, an upper conveying frame, a lower conveying frame, a toothed chain, a third hydraulic cylinder, and a fourth hydraulic cylinder. The upper fixed seat and the lower fixed seat are respectively fixedly mounted on the upper and lower ends of the column, the upper clamping body is mounted on the lower end of the upper fixed seat through the first hydraulic cylinder, and the lower clamping body is fixedly mounted on the lower end of the upper fixed seat through the second hydraulic cylinder, and the upper The clamping body is located directly above the lower clamping body, the upper conveying frame is installed above the lower fixed seat through the fourth hydraulic cylinder, the lower conveying frame is installed above the lower fixed seat through the third hydraulic cylinder, and the upper conveying frame is located directly above the lower conveying frame, the upper conveying frame and the lower conveying frame are both transmission-mounted with the toothed chain, the stepping pull belt hydraulic cylinder is movably mounted on one end of the lower fixed seat, and the top end of the stepping pull belt hydraulic cylinder is transmission-connected to one end of the lower conveying frame through the ratchet transmission unit.

[0009] Furthermore, the ratchet transmission unit includes a transmission box, a ratchet, a plurality of pawls, and a connecting seat. The connecting seat is installed at one end of the transmission box and is movably connected to the top of the stepping belt hydraulic cylinder. The plurality of pawls are installed inside the other end of the transmission box. The ratchet is fixedly installed at one end of the lower conveying frame and is transmission-connected to the pawls.

[0010] Furthermore, the belt cutting mechanism includes a lower clamping seat, an upper clamping seat, a lower connecting block, an upper connecting block, bolts, a cutting unit, and a water cooling unit. Lower connecting blocks are symmetrically arranged on both sides of the lower clamping seat, and upper connecting blocks are symmetrically arranged on both sides of the upper clamping seat, and the corresponding lower connecting blocks and upper connecting blocks are fixed by the bolts, and the cutting unit and the water cooling unit are installed between the lower clamping seat and the upper clamping seat.

[0011] Furthermore, the cutting unit includes a cutting groove, a walking wheel, a track, a motor, a slide, a mounting frame, a worm, a rotating shaft, a turbine, and a cutting blade. The cutting groove is arranged on the top surface of the lower clamping seat, and the track is arranged on both sides of the inside of the upper clamping seat. The slide is fixedly installed on both sides of the motor and is slidably clamped in the track. The mounting frame is fixedly installed on both sides of the front end of the motor. The front end of the motor is transmission-installed with the worm, and the rotating shaft is movably installed on the mounting frame. The turbine and the cutting blade are both fixedly installed on the rotating shaft, and the turbine is transmission-connected to the worm. The walking wheel is movably installed on the outside of the mounting frame and transmission-connected to the end of the rotating shaft. At the same time, the walking wheel is located in the track.

[0012] Furthermore, the water cooling unit includes a hydraulic module, a water inlet hose, a nozzle, a return port, a filter, and a water storage tank. The water storage tank is arranged inside the lower clamp seat, the hydraulic module is fixedly installed on one end of the motor and is connected to the worm gear transmission, the water storage tank and the hydraulic module are connected through the water inlet hose, a nozzle is installed on one end of the hydraulic module, the return port is arranged in the groove, so that the groove is connected to the water storage tank, and the filter is fixedly installed in the return port.

[0013] Furthermore, the hydraulic module includes a hydraulic box, an elliptical hydraulic cavity, a water inlet, a water outlet, a driven hydraulic gear, and an active hydraulic gear. The hydraulic box is fixedly installed on one end of the motor, and the elliptical hydraulic cavity is provided inside the hydraulic box. One end of the elliptical hydraulic cavity is provided with a water inlet, and the other end is provided with a water outlet. The worm penetrates through the inside of the elliptical hydraulic cavity, and the active hydraulic gear is fixedly installed on the worm. The driven hydraulic gear is movably installed in the elliptical hydraulic cavity and is meshed and connected with the active hydraulic gear.

[0014] Furthermore, the retractable belt mechanism includes an upper brake box, a middle brake box, a lower brake box, an upper crawler chassis, a lower crawler chassis, a hydraulic drive motor, a support seat, a fixed bracket, a lifting bracket, a lifting hydraulic cylinder, and a crawler. The top end of the support seat is fixedly installed with the fixed bracket, one side of the fixed bracket is fixedly connected to the side of the lower crawler chassis, the upper end of the fixed bracket is installed with the lifting hydraulic cylinder, one end of the fixed bracket is fixedly connected to the middle brake box, the top end of the lifting hydraulic cylinder is installed with the lifting bracket, one end of the lifting bracket is connected to the upper brake box, one side of the lifting bracket is connected to the side of the upper crawler chassis, the crawlers are both transmission-installed on the upper crawler chassis and the lower crawler chassis, and the sides of the upper crawler chassis and the lower crawler chassis are both installed with the hydraulic drive motor connected to the crawler transmission.

[0015] Furthermore, the belt winding mechanism includes a base, a bracket, a winding motor, a reduction gear, a transmission shaft, a coupling, a bearing seat, a winding roller, a correction roller, and a pressure sensor. The winding motor is installed on the base, and brackets are fixedly installed at both ends of the base. The two brackets are movably installed with transmission shafts through the bearing seats. The winding roller is installed between the two transmission shafts through the coupling. The reduction gear is fixedly installed on one side of the bracket, and the winding motor is connected to the transmission shaft through the reduction gear, the correction roller is installed on the bracket, and the pressure sensor is fixedly installed on the surface of the correction roller; it also includes a controller, the pressure sensor is connected to the controller signal, and the controller is electrically connected to the winding motor.

[0016] A belt replacement process using the above-mentioned belt conveyor belt replacement device, the replacement process specifically includes the following steps:

[0017] S1: Belt clamping and loosening operation: The upper clamping body and the lower clamping body in the belt clamping and loosening mechanism, as well as the upper conveying frame and the lower conveying frame are initially in an open state, so that the belt conveyor's belt conveying materials can pass through the device normally; when clamping the belt, the first hydraulic cylinder, the second hydraulic cylinder, the third hydraulic cylinder, and the fourth hydraulic cylinder start to work, and the first hydraulic cylinder and the second hydraulic cylinder drive the upper clamping body and the lower clamping body to close to clamp the upper belt, and the third hydraulic cylinder and the fourth hydraulic cylinder drive the upper conveying frame and the lower conveying frame to close to clamp the lower belt; when feeding the belt, the stepping belt pulling hydraulic cylinder extends at the same time, driving the ratchet transmission unit to rotate forward around the axis of the lower conveying frame, thereby rotating the transmission drive shaft through the ratchet and the pawl, and then driving the toothed chain on the lower conveying frame for transmission and conveying, so that the belt pulling action is realized through the movement of the toothed chain, so that the belt at one end of the belt clamping and loosening mechanism is tightened and the belt at the other end is loosened; the stepping belt pulling hydraulic cylinder continues to extend and retract until the belt loosening operation is completed.

[0018] S2: tape cutting operation: the lower clamping seat is pressed against the bottom surface of the loosened tape, and the upper clamping seat is pressed against the top surface of the tape, and then the upper clamping seat and the lower clamping seat are closed by bolts in conjunction with the lower connecting block and the upper connecting block to clamp the tape, and then the motor is turned on to drive the worm to rotate, and the worm drives the rotating shaft to rotate through the turbine, thereby driving the cutting blade and the travel wheel to rotate, and the cutting blade cuts the tape, and the travel wheel moves in the track, thereby driving the cutting unit as a whole to gradually move forward and continue to cut the tape until the tape is completely cut off; when the worm drives the tape to be cut, it synchronously drives the active hydraulic gear to rotate, and at the same time, the active hydraulic gear drives the driven hydraulic gear to rotate, and the left ends of the two hydraulic gears separate from each other during the rotation process, forming a low pressure, sucking in cooling water through the water inlet, and pushing the cooling water to the right end along the inner wall of the elliptical hydraulic cavity, and at the same time, the right ends of the two hydraulic gears close together during the rotation process, forming a high pressure, discharging the cooling water from the water outlet, and then spraying it to the cutting position of the cutting blade through the nozzle for water cooling.

[0019] S3: Belt retracting and unreeling operation: After the old tape is cut off, the upper end of the old tape passes through the gap between the upper brake box and the middle brake box and is led out from between the upper track chassis and the lower track chassis, and the lower end of the old tape passes through the gap between the middle brake box and the lower brake box, and one end of the old tape is vulcanized and connected to the new tape through a vulcanizer, and then the belt clamping and loosening mechanism is reset to loosen the old tape; then the lifting hydraulic cylinder is actuated to drive the upper track chassis downward, and cooperate with the lower track chassis to clamp the upper end of the old tape, providing sufficient pressure for the belt pulling action to prevent the tape and the track surface from slipping against each other, and then the hydraulic drive motor is turned on to drive the tracks on the upper track chassis and the lower track chassis for transmission, so as to utilize the track friction to pull out the old tape, and while the old tape is pulled out, the new tape is pulled and replaced synchronously.

[0020] S4: Tape winding operation: one end of the old tape is tightened by the correcting roller and then wound on the winding roller, and then the winding motor is turned on to drive the winding roller to rotate and wind up the old tape; as the roll diameter continues to increase, the tape winding linear speed will also increase accordingly, and the speed difference between the tape winding and the tape pulling will also increase, resulting in an increase in the tape tension. At this time, the pressure sensor installed on the correcting roller sends this signal to the controller, and the controller filters the signal and intelligently adjusts the speed of the winding motor according to the size of the signal change, so as to ensure that the tape winding linear speed and the crawler traction and pulling speed are matched in real time; when the old tape is wound up, the new tape is synchronously pulled and replaced, and the new tape is clamped by the clamping and loosening belt mechanism, and then the joint of the old and new tapes is cut by the tape cutting mechanism, and finally the two ends of the new tape are butt-jointed and vulcanized by the vulcanizer to complete the replacement of the new tape. Beneficial effects

[0021] Beneficial effects of the present invention:

[0022] (1) The present invention discloses a belt conveyor belt replacement device and its replacement process. The belt cutting mechanism can be cooled by a water cooling unit when cutting the tape, thereby preventing the friction between the blade and the tape from generating heat and producing harmful gases such as SO2. At the same time, it can also reduce the generation of sparks when cutting the wire rope core tape and extinguish the sparks in time when they are generated. Combined with the sealing clamping of the upper and lower clamps, it can be used for underground tape cutting operations, and the upper and lower clamps clamp the tape to facilitate the cutting operation.

[0023] (2) The present invention discloses a belt conveyor belt replacement device and its replacement process. The belt retracting and unretracting mechanism drives the upper and lower crawler chassis by hydraulic pressure to clamp the old belt, and then drives the upper and lower crawler chassis by hydraulic motor to pull out the old belt by friction. Compared with pulling the belt by a buckle winch, the force area of ​​the belt is larger when the belt is pulled, so that the belt is not easily deformed or damaged when it is pulled. At the same time, the upper and lower crawler chassis are continuously in a compressed state when the belt is pulled, so that the belt is not easily fallen off or the belt is not easily run away, and the safety is higher. Moreover, when the belt is pulled by the belt retracting and unretracting mechanism, there is no need to install a buckle and connect a winch at the end of the belt, which makes it convenient to rewind the old belt while pulling the belt, thereby improving the belt replacement efficiency.

[0024] (3) The belt conveyor belt replacement device and its replacement process described in the present invention can detect the tension of the old tape through a pressure sensor while winding the old tape, thereby adjusting the speed of the winding motor according to the tension of the old tape, ensuring that the winding line speed and the crawler traction belt pulling speed are matched in real time, and will not cause problems such as tape storage or winding motor overload in the traditional winding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and examples.

[0026] FIG1 is a schematic diagram of the overall structure provided by the present invention;

[0027] FIG2 is a schematic structural diagram of the clamping and loosening belt mechanism shown in FIG1 ;

[0028] FIG3 is a schematic structural diagram of the belt retracting and unretracting mechanism shown in FIG1 ;

[0029] FIG4 is a schematic structural diagram of the ribbon cutting mechanism shown in FIG1 ;

[0030] FIG5 is a schematic structural diagram of the tape winding mechanism shown in FIG1 ;

[0031] FIG6 is a cross-sectional view of the ratchet transmission unit shown in FIG2 in the MM direction;

[0032] FIG7 is a schematic structural diagram of the cutting unit shown in FIG4 ;

[0033] FIG8 is a cross-sectional view of the lower clamp seat shown in FIG4 taken along the NN direction;

[0034] FIG9 is a vertical cross-sectional view of the hydraulic module shown in FIG7 ;

[0035] FIG10 is a diagram showing a belt replacement demonstration of the belt conveyor belt replacement device shown in FIG1 ;

[0036] In the figure: 1, clamping and loosening belt mechanism; 11, column; 12, upper fixed seat; 13, lower fixed seat; 14, upper clamping body; 15, lower clamping body; 16, first hydraulic cylinder; 17, second hydraulic cylinder; 18, stepping belt hydraulic cylinder; 19, ratchet transmission unit; 191, transmission box; 192, ratchet; 193, pawl; 194, connecting seat; 1a, upper conveyor frame; 1b, lower conveyor frame; 1c, toothed chain; 1d, third Hydraulic cylinder; 1e, fourth hydraulic cylinder; 2, belt retracting and unretracting mechanism; 21, upper brake box; 22, middle brake box; 23, lower brake box; 24, upper crawler chassis; 25, lower crawler chassis; 26, hydraulic drive motor; 27, support base; 28, fixed bracket; 29, lifting bracket; 2a, lifting hydraulic cylinder; 2b, crawler; 3, belt cutting mechanism; 31, lower clamping base; 32, upper clamping base; 33, lower connecting block; 34, upper Connecting block; 35. Bolt; 36. Cutting unit; 361. Cutting groove; 362. Travel wheel; 363. Track; 364. Motor; 365. Slide; 366. Mounting frame; 367. Worm; 368. Rotating shaft; 369. Turbine; 36a. Cutting blade; 37. Water cooling unit; 371. Hydraulic module; 3711. Hydraulic box; 3712. Elliptical hydraulic chamber; 3713. Water inlet; 3714. Outlet Water inlet; 3715, driven hydraulic gear; 3716, active hydraulic gear; 372, water inlet hose; 373, nozzle; 374, return port; 375, filter screen; 376, water storage tank; 4, belt winding mechanism; 41, base; 42, bracket; 43, winding motor; 44, reduction gear box; 45, transmission shaft; 46, coupling; 47, bearing seat; 48, winding roller; 49, deviation correction roller; 4a, pressure sensor. Modes for Carrying Out the Invention

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0038] As shown in Figures 1 to 10, a belt conveyor belt replacing device described in the present invention includes a belt clamping and loosening mechanism 1, a belt retracting and unreeling mechanism 2, a belt cutting mechanism 3, and a belt winding mechanism 4. The belt clamping and loosening mechanism 1 is installed on the belt conveyor for clamping and loosening the belt, the belt cutting mechanism 3 is used to cut and shear the belt, the belt retracting and unreeling mechanism 2 is installed on the belt conveyor for collecting the old tape and placing the new tape, and the belt winding mechanism 4 is arranged at one end of the belt conveyor for winding the old tape; through the cooperation of the belt clamping and loosening mechanism 1, the belt retracting and unreeling mechanism 2, the belt cutting mechanism 3, and the belt winding mechanism 4, continuous belt retraction and unreeling can be achieved, which greatly improves the degree of automation of the belt changing process. Workers only play an auxiliary role in the belt changing, which reduces the labor intensity of workers, improves safety, and significantly improves the efficiency of belt changing.

[0039] The clamping and loosening belt mechanism 1 includes a column 11, an upper fixed seat 12, a lower fixed seat 13, an upper clamping body 14, a lower clamping body 15, a first hydraulic cylinder 16, a second hydraulic cylinder 17, a stepping belt hydraulic cylinder 18, a ratchet transmission unit 19, an upper conveying frame 1a, a lower conveying frame 1b, a toothed chain 1c, a third hydraulic cylinder 1d, and a fourth hydraulic cylinder 1e. The upper fixed seat 12 and the lower fixed seat 13 are respectively fixedly installed on the upper and lower ends of the column 11, the upper clamping body 14 is installed on the lower end of the upper fixed seat 12 through the first hydraulic cylinder 16, and the lower clamping body 15 is fixedly installed through the second hydraulic cylinder 17. The upper clamping body 14 is mounted on the lower end of the upper fixed seat 12, and the upper clamping body 14 is located directly above the lower clamping body 15. The upper conveying frame 1a is mounted above the lower fixed seat 13 through the fourth hydraulic cylinder 1e. The lower conveying frame 1b is mounted above the lower fixed seat 13 through the third hydraulic cylinder 1d, and the upper conveying frame 1a is located directly above the lower conveying frame 1b. The toothed chain 1c is installed on both the upper conveying frame 1a and the lower conveying frame 1b. The stepping belt hydraulic cylinder 18 is movably mounted on one end of the lower fixed seat 13, and the top of the stepping belt hydraulic cylinder 18 is The end is connected to one end of the lower conveyor frame 1b through the ratchet transmission unit 19; the upper clamp 14 and the lower clamp 15, as well as the upper conveyor frame 1a and the lower conveyor frame 1b are initially in an open state, so that the belt conveyor's belt conveying material can pass through the device normally; when clamping the belt, the first hydraulic cylinder 16, the second hydraulic cylinder 17, the third hydraulic cylinder 1d, and the fourth hydraulic cylinder 1e start to work, and the first hydraulic cylinder 16 and the second hydraulic cylinder 17 drive the upper clamp 14 and the lower clamp 15 to close to clamp the upper belt, and the third hydraulic cylinder 16 and the second hydraulic cylinder 17 drive the upper clamp 14 and the lower clamp 15 to close to clamp the upper belt. 1d and the fourth hydraulic cylinder 1e drive the upper conveyor frame 1a and the lower conveyor frame 1b to close, clamping the lower tape; when feeding the tape, the stepping belt-pulling hydraulic cylinder 18 extends at the same time, driving the ratchet transmission unit 19 to rotate forward around the axis of the lower conveyor frame 1b, thereby driving the axis of the lower conveyor frame 1b to rotate, and then driving the toothed chain 1c on the lower conveyor frame 1b to transmit and convey, thereby realizing the belt-pulling action through the movement of the toothed chain 1c, so that the tape at one end of the clamping and loosening mechanism 1 is tightened and the tape at the other end is loosened; the stepping belt-pulling hydraulic cylinder 18 continues to extend and retract until the belt loosening operation is completed.

[0040] The ratchet transmission unit 19 includes a transmission box 191, a ratchet 192, multiple pawls 193, and a connecting seat 194. The connecting seat 194 is installed at one end of the transmission box 191 and is movably connected to the top of the step-pull hydraulic cylinder 18. Multiple pawls 193 are installed inside the other end of the transmission box 191. The ratchet 192 is fixedly installed at one end of the lower conveying frame 1b and is transmission-connected to the pawl 193; when the step-pull hydraulic cylinder 18 is extended, the pawl 193 is driven to rotate through the transmission box 191, so that the pawl 193 drives the ratchet 192 to rotate, thereby driving the axis of the lower conveying frame 1b to rotate.

[0041] The belt cutting mechanism 3 includes a lower clamping seat 31, an upper clamping seat 32, a lower connecting block 33, an upper connecting block 34, a bolt 35, a cutting unit 36, and a water cooling unit 37. The lower connecting blocks 33 are symmetrically arranged on both sides of the lower clamping seat 31, and the upper connecting blocks 34 are symmetrically arranged on both sides of the upper clamping seat 32. The lower connecting blocks 33 and the upper connecting blocks 34 are connected and fixed by the bolts 35. The cutting unit 36 ​​and the water cooling unit 37 are installed between the lower clamping seat 31 and the upper clamping seat 32. The water-cooling unit 37 is used to cut the tape. When cutting the tape, the lower clamp seat 31 is pressed against the bottom surface of the loosened tape, and the upper clamp seat 32 is pressed against the top surface of the tape. Then, the bolt 35 is used to cooperate with the lower connecting block 33 and the upper connecting block 34 to close the upper clamp seat 32 and the lower clamp seat 31 and clamp the tape. After that, the cutting unit 36 ​​can be used to cut the tape. At the same time, the cutting part is cooled by water through the water-cooling unit 37 to prevent the blade and the tape from generating heat and producing harmful gases such as SO2 due to friction. At the same time, it can also reduce the generation of sparks when cutting the wire rope core tape and extinguish the sparks in time when they are generated. Combined with the sealing and clamping of the upper and lower clamp seats, it can be used for underground tape cutting operations, and the upper and lower clamp seats clamp the tape to facilitate cutting operations.

[0042] The cutting unit 36 ​​includes a cutting groove 361, a walking wheel 362, a track 363, a motor 364, a slide 365, a mounting bracket 366, a worm 367, a rotating shaft 368, a turbine 369, and a cutting blade 36a. The cutting groove 361 is arranged on the top surface of the lower clamping seat 31, and the track 363 is arranged on both sides of the interior of the upper clamping seat 32. The slide 365 is fixedly installed on both sides of the motor 364 and is slidably mounted in the track 363. The mounting bracket 366 is fixedly installed on both sides of the front end of the motor 364. The front end transmission of the motor 364 is equipped with the worm 367. The rotating shaft 368 is movably installed on the mounting bracket 366. The turbine 369 and the cutting blade 36a are fixed. It is fixedly installed on the rotating shaft 368, and the turbine 369 is transmission connected to the worm 367, the walking wheel 362 is movably installed on the outer side of the mounting frame 366, and is transmission connected to the end of the rotating shaft 368, and the walking wheel 362 is located in the track 363; when the motor 364 is turned on, it drives the worm 367 to rotate, and the worm 367 drives the rotating shaft 368 to rotate through the turbine 369, thereby driving the cutting blade 36a and the walking wheel 362 to rotate, and the cutting blade 36a cuts the tape along the cutting groove 361, and the walking wheel 362 moves in the track 363, thereby driving the cutting unit 36 ​​as a whole to gradually move forward and continue to cut the tape until the tape is completely cut off.

[0043] The water cooling unit 37 includes a hydraulic module 371, a water inlet hose 372, a nozzle 373, a return port 374, a filter 375, and a water storage tank 376. The water storage tank 376 is arranged inside the lower clamping seat 31. The hydraulic module 371 is fixedly installed on one end of the motor 364 and is connected to the worm 367. The water storage tank 376 and the hydraulic module 371 are connected through the water inlet hose 372. A nozzle 373 is installed on one end of the hydraulic module 371. The return port 374 is arranged in the groove 361, so that the groove 361 is connected to the water storage tank 376. The filter 375 is fixedly installed in the return port 374. When the motor 364 drives the worm 367 to rotate and cut the tape, the worm 367 synchronously drives the hydraulic module 371 to work, so that the hydraulic module 371 draws cooling water from the water storage tank 376 through the water inlet hose 372, and sprays it to the cutting point between the cutting blade 36a and the tape through the nozzle 373 for cooling. After that, the used cooling water gathers in the cutting groove 361, and after being filtered by the filter 375, it flows back to the water storage tank 376 through the return port 374 for reuse.

[0044] The hydraulic module 371 includes a hydraulic box 3711, an elliptical hydraulic cavity 3712, a water inlet 3713, a water outlet 3714, a driven hydraulic gear 3715, and a driving hydraulic gear 3716. The hydraulic box 3711 is fixedly mounted on one end of the motor 364. The elliptical hydraulic cavity 3712 is provided inside the hydraulic box 3711. One end of the elliptical hydraulic cavity 3712 is provided with a water inlet 3713, and the other end is provided with a water outlet 3714. The worm 367 penetrates through the inside of the elliptical hydraulic cavity 3712, and the driving hydraulic gear 3716 is fixedly mounted on the worm 367. The driven hydraulic gear 3715 is movably mounted in the elliptical hydraulic cavity 3712 and meshes with the driving hydraulic gear 3716 to transmit the worm 367. Dynamic connection; wherein, the water inlet 3713 is connected with the water inlet hose 372, and the water outlet 3714 is connected with the nozzle 373. When the worm 367 rotates, the active hydraulic gear 3716 is synchronously driven to rotate, and at the same time, the active hydraulic gear 3716 drives the driven hydraulic gear 3715 to rotate. The left ends of the two hydraulic gears separate from each other during the rotation process, forming a low pressure, and the cooling water is sucked in through the water inlet 3713, and the cooling water is pushed to the right end along the inner wall of the elliptical hydraulic cavity 3712. At the same time, the right ends of the two hydraulic gears close together during the rotation process, forming a high pressure, and the cooling water is discharged from the water outlet 3714, and then sprayed to the cutting position of the cutting blade 36a through the nozzle 373 for water cooling.

[0045] The retractable belt mechanism 2 includes an upper brake box 21, a middle brake box 22, a lower brake box 23, an upper crawler chassis 24, a lower crawler chassis 25, a hydraulic drive motor 26, a support seat 27, a fixed bracket 28, a lifting bracket 29, a lifting hydraulic cylinder 2a, and a crawler 2b. The top of the support seat 27 is fixedly installed with the fixed bracket 28, one side of the fixed bracket 28 is fixedly connected to the side of the lower crawler chassis 25, the upper end of the fixed bracket 28 is installed with the lifting hydraulic cylinder 2a, one end of the fixed bracket 28 is fixedly connected to the middle brake box 22, and the lifting hydraulic cylinder 2a is fixedly installed. The top of the pressure cylinder 2a is equipped with the lifting bracket 29, one end of the lifting bracket 29 is connected to the upper brake box 21, and one side of the lifting bracket 29 is connected to the side of the upper crawler chassis 24. The crawler 2b is installed on both the upper crawler chassis 24 and the lower crawler chassis 25, and the hydraulic drive motor 26 connected to the crawler 2b is installed on the sides of the upper crawler chassis 24 and the lower crawler chassis 25. When the old tape is cut off, the upper end of the old tape passes through the gap between the upper brake box 21 and the middle brake box 22 and is released from the bottom of the upper crawler The old tape at the lower end passes through the gap between the middle brake box 22 and the lower brake box 23, and one end thereof is vulcanized and connected to the new tape through a vulcanizer, and then the clamping and loosening belt mechanism 1 is reset to loosen the old tape; then the lifting hydraulic cylinder 2a is actuated to drive the upper crawler chassis 24 downward, and cooperate with the lower crawler chassis 25 to clamp the old tape at the upper end, providing sufficient pressure for the pulling action to prevent the tape and the track surface from slipping against each other, and then the hydraulic drive motor 26 is turned on to drive the upper crawler chassis 24 and the lower crawler chassis The crawler belt 2b on 25 is used for transmission, so that the old tape is pulled out by utilizing the friction force of the crawler belt 2b, and while the old tape is pulled out, the new tape is pulled and replaced synchronously; compared with pulling the tape by means of a buckle winch, the force-bearing area of ​​the tape is larger when the belt retracting and unwinding mechanism 2 pulls the tape, so that the tape is not easily deformed or damaged when it is pulled, and at the same time, the upper and lower crawler chassis are continuously in a compressed state when the tape is pulled, so that the tape is not easily fallen off or a running accident occurs, and the safety is higher; and when the belt retracting and unwinding mechanism 2 is used to pull the tape, there is no need to install a buckle or connect a winch at the end of the tape, so that the old tape can be wound up while the tape is pulled, thereby improving the efficiency of belt replacement.

[0046] The belt winding mechanism 4 includes a base 41, a bracket 42, a winding motor 43, a reduction gear box 44, a transmission shaft 45, a coupling 46, a bearing seat 47, a winding roller 48, a deviation correction roller 49, and a pressure sensor 4a. The winding motor 43 is installed on the base 41. The brackets 42 are fixedly installed at both ends of the base 41. The transmission shaft 45 is movably installed on the two brackets 42 through the bearing seat 47. The winding roller 48 is installed between the two transmission shafts 45 through the coupling 46. The reduction gear box 44 is fixed. It is installed on one side of the bracket 42, and the winding motor 43 is connected to the transmission shaft 45 through the reduction gear box 44. The correction roller 49 is installed on the bracket 42, and the pressure sensor 4a is fixedly installed on the surface of the correction roller 49; it also includes a controller, the pressure sensor 4a is connected to the controller signal, and the controller is electrically connected to the winding motor 43; when winding the tape, one end of the old tape is tightened by the correction roller 49 and then wound on the winding roller 48, and then the winding motor 43 is turned on. , driving the winding roller 48 to rotate and rewind the old tape; as the roll diameter continues to increase, the tape linear speed will also increase accordingly, and the pulling and unwinding speed of the tape rewinding and unwinding mechanism 2 remains unchanged, so that the speed difference between the tape rewinding and the tape pulling will also increase, resulting in an increase in the tape tension. At this time, the pressure sensor 4a installed on the deviation correction roller 49 sends this signal to the controller, and the controller filters the signal and intelligently adjusts the speed of the winding motor 43 according to the size of the signal change, thereby ensuring that the tape linear speed matches the crawler traction and pulling speed in real time; when the old tape is wound up, After that, the new tape is replaced by synchronous traction, the new tape is clamped by the clamping and loosening tape mechanism 1, and the joint of the new and old tapes is cut by the tape cutting mechanism 3, and finally the two ends of the new tape are butt-jointed and vulcanized by the vulcanizer to complete the replacement of the new tape; among them, the controller uses the KZQ-1 controller sold by Kung Fu Dragon Sports flagship store, and its supporting circuit can be provided by the merchant, and the pressure sensor 4a uses the YCYL-HSM01 pressure sensor sold by Yuancheng Automation Official Enterprise Store, and its supporting circuit can be provided by the merchant.

[0047] When the present invention is in use, it is first necessary to initially open the upper clamping body 14 and the lower clamping body 15 in the clamping and loosening belt mechanism 1, as well as the upper conveying frame 1a and the lower conveying frame 1b, so that the belt conveyor's belt conveying materials can pass through the device normally; when clamping the belt, the first hydraulic cylinder 16, the second hydraulic cylinder 17, the third hydraulic cylinder 1d, and the fourth hydraulic cylinder 1e start to work, and the first hydraulic cylinder 16 and the second hydraulic cylinder 17 drive the upper clamping body 14 and the lower clamping body 15 to close to clamp the upper belt, and the third hydraulic cylinder 1d and the fourth hydraulic cylinder 1e drive the upper conveying frame 1a and the lower conveying frame 1b to close to clamp the lower belt; when feeding the belt, the stepping belt hydraulic cylinder The pressure cylinder 18 extends at the same time, driving the ratchet transmission unit 19 to rotate in the forward direction around the axis of the lower conveyor frame 1b, thereby rotating the transmission drive shaft through the ratchet 192 and the pawl 193, and then driving the toothed chain 1c on the lower conveyor frame 1b to transmit and convey, so that the belt pulling action is realized through the movement of the toothed chain 1c, so that the tape at one end of the clamping and loosening mechanism 1 is tightened and the tape at the other end is loosened; the stepping belt pulling hydraulic cylinder 18 continues to extend and retract until the belt loosening operation is completed; then, the lower clamping seat 31 is pressed against the bottom surface of the loosened tape, and the upper clamping seat 32 is pressed against the top surface of the tape, and then the upper clamping seat 32 and the lower clamping seat 31 are closed by the bolt 35 in conjunction with the lower connecting block 33 and the upper connecting block 34, and the tape is clamped. After the tape is completely cut, the worm 367 is driven to rotate, and the worm 367 drives the shaft 368 to rotate through the turbine 369, thereby driving the cutting blade 36a and the travel wheel 362 to rotate. The cutting blade 36a cuts the tape, and the travel wheel 362 moves in the track 363, thereby driving the cutting unit 36 ​​to move forward as a whole to continuously cut the tape until the tape is completely cut off; when the worm 367 drives the moving cutting tape, it synchronously drives the active hydraulic gear 3716 to rotate, and at the same time, the active hydraulic gear 3716 drives the driven hydraulic gear 3715 to rotate. During the rotation process, the left ends of the two hydraulic gears separate from each other, forming a low pressure. The water inlet 3713 sucks in cooling water and pushes the cooling water to the right end along the inner wall of the elliptical hydraulic cavity 3712. At the same time, the right ends of the two hydraulic gears close together during the rotation, forming high pressure, and the cooling water is discharged from the water outlet 3714, and then sprayed to the cutting position of the cutting blade 36a through the nozzle 373 for water cooling; again, after the old tape is cut, the upper end of the old tape passes through the gap between the upper brake box 21 and the middle brake box 22 and is led out from between the upper track chassis 24 and the lower track chassis 25, and the lower end of the old tape passes through the gap between the middle brake box 22 and the lower brake box 23, and one end of the old tape is vulcanized and connected to the new tape through a vulcanizer, and then the clamping and loosening belt mechanism 1 is reset to loosen the old tape;After that, the lifting hydraulic cylinder 2a is actuated to drive the upper crawler chassis 24 downward, and cooperate with the lower crawler chassis 25 to clamp the old tape at the upper end, providing sufficient pressure for the pulling action to prevent the tape and the track surface from slipping against each other, and then the hydraulic drive motor 26 is turned on to drive the crawlers on the upper crawler chassis 24 and the lower crawler chassis 25 to transmit, so as to use the friction force of the crawler to pull out the old tape, and at the same time as the old tape is pulled out, the new tape is pulled and replaced synchronously; finally, one end of the old tape is tightened by the deviation correction roller 49 and then wound on the winding roller 48, and then the winding motor 43 is turned on to drive the winding roller 48 to rotate and wind up the old tape; as the winding diameter continues to increase , the tape winding speed will also increase accordingly, and the speed difference between the tape winding and the tape pulling will also increase, resulting in an increase in tape tension. At this time, the pressure sensor 4a installed on the correction roller 49 sends this signal to the controller. The controller filters the signal and intelligently adjusts the speed of the winding motor 43 according to the magnitude of the signal change, thereby ensuring that the tape winding speed and the crawler traction and pulling speed match in real time. When the old tape is wound, the new tape is synchronously pulled and replaced. The new tape is clamped by the clamping and loosening mechanism 1, and the joint of the new and old tapes is cut by the tape cutting mechanism 3. Finally, the two ends of the new tape are butt-jointed and vulcanized in the vulcanizer, completing the replacement of the new tape.

[0048] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The above-described embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A belt conveyor belt replacement device, characterized in that: The belt conveyor comprises a belt clamping and loosening mechanism (1), a belt retracting and releasing mechanism (2), a belt cutting mechanism (3), and a belt winding mechanism (4). The belt clamping and loosening mechanism (1) is installed on the belt conveyor for clamping and loosening the adhesive tape, the belt cutting mechanism (3) is used to cut and sever the adhesive tape, the belt retracting and releasing mechanism (2) is installed on the belt conveyor for collecting old adhesive tape and placing new adhesive tape, and the belt winding mechanism (4) is arranged at one end of the belt conveyor for winding up the old adhesive tape.

2. The belt conveyor belt replacement device according to claim 1, characterized in that: The belt clamping and loosening mechanism (1) comprises a column (11), an upper fixed seat (12), a lower fixed seat (13), an upper clamping body (14), a lower clamping body (15), a first hydraulic cylinder (16), a second hydraulic cylinder (17), a stepping belt pulling hydraulic cylinder (18), a ratchet transmission unit (19), an upper conveying frame (1a), a lower conveying frame (1b), a toothed chain (1c), a third hydraulic cylinder (1d), and a fourth hydraulic cylinder (1e). The upper fixed seat (12) and the lower fixed seat (13) are respectively fixedly mounted on the upper and lower ends of the column (11); the upper clamping body (14) is mounted on the lower end of the upper fixed seat (12) via the first hydraulic cylinder (16); and the lower clamping body (15) is fixedly mounted on the upper fixed seat (12) via the second hydraulic cylinder (17). ), and the upper clamping body (14) is located directly above the lower clamping body (15); the upper conveying frame (1a) is installed above the lower fixed seat (13) through the fourth hydraulic cylinder (1e); the lower conveying frame (1b) is installed above the lower fixed seat (13) through the third hydraulic cylinder (1d); and the upper conveying frame (1a) is located directly above the lower conveying frame (1b); the toothed chain (1c) is installed on both the upper conveying frame (1a) and the lower conveying frame (1b); the stepping belt hydraulic cylinder (18) is movably installed on one end of the lower fixed seat (13), and the top end of the stepping belt hydraulic cylinder (18) is connected to one end of the lower conveying frame (1b) through the ratchet transmission unit (19).

3. The belt conveyor belt replacement device according to claim 2, characterized in that: The ratchet transmission unit (19) comprises a transmission box (191), a ratchet (192), a plurality of ratchet pawls (193), and a connecting seat (194); the connecting seat (194) is mounted on one end of the transmission box (191) and is movably connected to the top of the stepping belt hydraulic cylinder (18); the plurality of ratchet pawls (193) are all mounted inside the other end of the transmission box (191); the ratchet (192) is fixedly mounted on one end of the lower conveying frame (1b) and is transmission-connected to the ratchet pawls (193).

4. The belt conveyor belt replacement device according to claim 3, characterized in that: The belt cutting mechanism (3) comprises a lower clamping seat (31), an upper clamping seat (32), a lower connecting block (33), an upper connecting block (34), bolts (35), a cutting unit (36), and a water cooling unit (37). The lower connecting blocks (33) are symmetrically arranged on both sides of the lower clamping seat (31), and the upper connecting blocks (34) are symmetrically arranged on both sides of the upper clamping seat (32). The lower connecting blocks (33) and the upper connecting blocks (34) are connected and fixed by the bolts (35). The cutting unit (36) and the water cooling unit (37) are installed between the lower clamping seat (31) and the upper clamping seat (32).

5. The belt conveyor belt replacement device according to claim 4, characterized in that: The cutting unit (36) comprises a cutting groove (361), a walking wheel (362), a track (363), a motor (364), a slide bar (365), a mounting frame (366), a worm (367), a rotating shaft (368), a turbine (369), and a cutting blade (36a). The cutting groove (361) is arranged on the top surface of the lower clamping seat (31), the track (363) is arranged on both sides inside the upper clamping seat (32), the slide bar (365) is fixedly installed on both sides of the motor (364), and is slidably clamped in the track (363), and the mounting frame (366) is fixedly installed. The motor (364) is mounted on both sides of the front end thereof. The front end of the motor (364) is transmission-mounted with the worm (367). The rotating shaft (368) is movably mounted on the mounting frame (366). The turbine (369) and the cutting blade (36a) are both fixedly mounted on the rotating shaft (368). The turbine (369) is transmission-connected to the worm (367). The walking wheel (362) is movably mounted on the outside of the mounting frame (366) and transmission-connected to the end of the rotating shaft (368). The walking wheel (362) is located in the track (363).

6. The belt conveyor belt replacement device according to claim 5, characterized in that: The water cooling unit (37) comprises a hydraulic module (371), a water inlet hose (372), a nozzle (373), a return port (374), a filter (375), and a water storage tank (376); the water storage tank (376) is arranged inside the lower clamping seat (31); the hydraulic module (371) is fixedly mounted on one end of the motor (364) and is drivingly connected to the worm (367); the water storage tank (376) and the hydraulic module (371) are communicated through the water inlet hose (372); a nozzle (373) is installed at one end of the hydraulic module (371); the return port (374) is arranged in the groove (361) so that the groove (361) is in communication with the water storage tank (376); and the filter (375) is fixedly mounted in the return port (374).

7. The belt conveyor belt replacement device according to claim 6, characterized in that: The hydraulic module (371) comprises a hydraulic box (3711), an elliptical hydraulic chamber (3712), a water inlet (3713), a water outlet (3714), a driven hydraulic gear (3715), and a driving hydraulic gear (3716); the hydraulic box (3711) is fixedly mounted on one end of the motor (364); the elliptical hydraulic chamber (3712) is provided inside the hydraulic box (3711); one end of the elliptical hydraulic chamber (3712) is provided with a water inlet (3713), and the other end is provided with a water outlet (3714); the worm (367) penetrates through the inside of the elliptical hydraulic chamber (3712); the driving hydraulic gear (3716) is fixedly mounted on the worm (367); and the driven hydraulic gear (3715) is movably mounted in the elliptical hydraulic chamber (3712) and is meshingly and transmission-connected with the driving hydraulic gear (3716).

8. The belt conveyor belt replacement device according to claim 7, characterized in that: The belt retracting and unretracting mechanism (2) comprises an upper brake box (21), a middle brake box (22), a lower brake box (23), an upper crawler chassis (24), a lower crawler chassis (25), a hydraulic drive motor (26), a support seat (27), a fixed bracket (28), a lifting bracket (29), a lifting hydraulic cylinder (2a), and a crawler (2b); the fixed bracket (28) is fixedly mounted on the top of the support seat (27); one side of the fixed bracket (28) is fixedly connected to the side of the lower crawler chassis (25); the lifting hydraulic cylinder (2a) is mounted on the upper end of the fixed bracket (28); the fixed bracket (29) is fixedly mounted on the top of the support seat (27); One end of the frame (28) is fixedly connected to the middle brake box (22), the top end of the lifting hydraulic cylinder (2a) is installed with the lifting bracket (29), one end of the lifting bracket (29) is connected to the upper brake box (21), one side of the lifting bracket (29) is connected to the side of the upper crawler chassis (24), the crawler (2b) is transmission-mounted on the upper crawler chassis (24) and the lower crawler chassis (25), and the hydraulic drive motor (26) transmission-connected to the crawler (2b) is installed on the side of the upper crawler chassis (24) and the lower crawler chassis (25).

9. The belt conveyor belt replacement device according to claim 8, characterized in that: The tape winding mechanism (4) comprises a base (41), a bracket (42), a winding motor (43), a reduction gear box (44), a transmission shaft (45), a coupling (46), a bearing seat (47), a winding roller (48), a deviation correction roller (49), and a pressure sensor (4a). The winding motor (43) is mounted on the base (41). The brackets (42) are fixedly mounted at both ends of the base (41). The transmission shaft (45) is movably mounted on the two brackets (42) via the bearing seats (47). The winding roller (48) is movably mounted on the two brackets (42) via the bearing seats (47). A coupling (46) is installed between the two transmission shafts (45), the reduction box (44) is fixedly installed on one side of the bracket (42), and the winding motor (43) is connected to the transmission shaft (45) through the reduction box (44), the deviation correction roller (49) is installed on the bracket (42), and the pressure sensor (4a) is fixedly installed on the surface of the deviation correction roller (49); and a controller is also included, the pressure sensor (4a) is connected to the controller signal, and the controller is electrically connected to the winding motor (43).

10. A process for replacing an adhesive belt of a belt conveyor according to any one of claims 1 to 9, characterized in that: The replacement process specifically includes the following steps: S1: Belt clamping and loosening operation: The upper clamping body (14) and the lower clamping body (15) in the belt clamping and loosening mechanism (1) are initially in an open state, so that the belt conveying material of the belt conveyor can pass through the device normally; when the belt is clamped, the first hydraulic cylinder (16), the second hydraulic cylinder (17), the third hydraulic cylinder (1d), and the fourth hydraulic cylinder (1e) start to work, the first hydraulic cylinder (16) and the second hydraulic cylinder (17) drive the upper clamping body (14) and the lower clamping body (15) to close to clamp the upper belt, and the third hydraulic cylinder (1d) and the fourth hydraulic cylinder (1e) drive The upper conveyor frame (1a) and the lower conveyor frame (1b) are closed together to clamp the lower adhesive tape; when feeding the adhesive tape, the stepping adhesive tape hydraulic cylinder (18) is extended at the same time to drive the ratchet transmission unit (19) to rotate in the positive direction around the axis of the lower conveyor frame (1b), thereby rotating the transmission drive shaft of the ratchet wheel (192) and the pawl (193), and then driving the toothed chain (1c) on the lower conveyor frame (1b) to transmit and convey, thereby realizing the belt pulling action through the movement of the toothed chain (1c), so that the adhesive tape at one end of the clamping and loosening mechanism (1) is tightened and the adhesive tape at the other end is loosened; the stepping adhesive tape hydraulic cylinder (18) continues to extend and retract until the belt loosening operation is completed; S2: Tape cutting operation: the lower clamping seat (31) is placed tightly against the bottom surface of the loosened tape, and the upper clamping seat (32) is placed tightly against the top surface of the tape. The upper clamping seat (32) and the lower clamping seat (31) are then closed and the tape is clamped by means of the bolt (35) in coordination with the lower connecting block (33) and the upper connecting block (34). The motor (364) is then turned on to drive the worm (367) to rotate. The worm (367) drives the rotating shaft (368) to rotate through the turbine (369), thereby driving the cutting blade (36a) and the running wheel (362) to rotate. The cutting blade (36a) cuts the tape, and the running wheel (362) moves in the track (363), thereby driving the cutting unit (36) as a whole to gradually move forward. The tape is continuously cut until it is completely cut off; when the worm (367) drives the moving cutting tape, it synchronously drives the active hydraulic gear (3716) to rotate, and at the same time, the active hydraulic gear (3716) drives the driven hydraulic gear (3715) to rotate. During the rotation process, the left ends of the two hydraulic gears separate from each other, forming a low pressure, sucking cooling water through the water inlet (3713), and pushing the cooling water to the right end along the inner wall of the elliptical hydraulic cavity (3712). During the rotation process, the right ends of the two hydraulic gears close together, forming a high pressure, discharging the cooling water from the water outlet (3714), and then spraying it to the cutting position of the cutting blade (36a) through the nozzle (373) for water cooling; S3: Belt retracting and releasing operation: After the old tape is cut, the upper end of the old tape passes through the gap between the upper brake box (21) and the middle brake box (22) and is led out from between the upper crawler chassis (24) and the lower crawler chassis (25), and the lower end of the old tape passes through the gap between the middle brake box (22) and the lower brake box (23), and one end of the old tape is vulcanized and connected to the new tape through a vulcanizer, and then the clamping and releasing mechanism (1) is reset to release the old tape; then the lifting hydraulic cylinder (2a) is actuated to drive the lifting hydraulic cylinder (2a) to release the old tape. The upper crawler chassis (24) moves downward, and cooperates with the lower crawler chassis (25) to clamp the old adhesive tape at the upper end, thereby providing sufficient pressure for the pulling action to prevent the adhesive tape and the crawler surface from sliding against each other, and then the hydraulic drive motor (26) is turned on to drive the crawlers (2b) on the upper crawler chassis (24) and the lower crawler chassis (25) to transmit, thereby utilizing the friction force of the crawler belt (2b) to pull out the old adhesive tape, and while the old adhesive tape is pulled out, the new adhesive tape is pulled synchronously to be replaced; S4: Tape winding operation: one end of the old tape is tightened by the deflection correction roller (49) and then wound on the winding roller (48), and then the winding motor (43) is turned on to drive the winding roller (48) to rotate and wind up the old tape; as the winding diameter continues to increase, the tape winding linear speed will also increase accordingly, and the speed difference between the tape winding and the tape pulling will also increase, resulting in an increase in the tape tension. At this time, the pressure sensor (4a) installed on the deflection correction roller (49) sends this signal to the controller, and the controller filters the signal and intelligently adjusts the speed of the winding motor (43) according to the size of the signal change, thereby ensuring that the tape winding linear speed matches the crawler traction tape pulling speed in real time; when the old tape is wound up, the new tape is synchronously pulled and replaced, and the replaced new tape is clamped by the clamping and loosening belt mechanism (1), and then the joint of the new and old tapes is cut by the tape cutting mechanism (3), and finally the two ends of the new tape are butt-jointed and vulcanized by the vulcanizer, thereby completing the replacement of the new tape.

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