A device and process for rapid and continuous replacement of a large-angle strong adhesive tape

By using a rapid and continuous replacement device and process for high-inclination angle strong conveyor belts, and utilizing a hydraulically controlled belt safety brake and track traction device, safe and efficient belt replacement is achieved, solving the problems of safety risks, low efficiency, and limited space in the replacement of high-inclination angle strong conveyor belts.

CN115972148BActive Publication Date: 2026-04-21TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Filing Date
2022-12-30
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Replacing high-intensity tape at large angles presents challenges such as significant safety risks, low efficiency, high labor intensity, and limited space that prevents the simultaneous placement of old and new tapes.

Method used

A high-inclination, high-strength conveyor belt rapid and continuous replacement device is adopted, including an unloading roller, a conveyor belt safety brake, a speed sensor, and a belt release device. The clamping and releasing actions are controlled by a hydraulic system, and combined with a track traction belt replacement device, the continuous replacement of old and new conveyor belts is realized.

Benefits of technology

It achieves safe and efficient tape replacement, reduces construction time, avoids tape slippage accidents, reduces labor intensity, and solves the problem of limited space in the tape replacement environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a rapid and continuous replacement device and process for high-inclination angle strong conveyor belts, including: Step 1, vulcanizing a new conveyor belt; Step 2, checking the safety of the conveyor belt's safety braking device; Step 3, cutting the old conveyor belt and feeding it into the track traction belt replacement device; Step 4, pulling the new conveyor belt to the vulcanization platform and vulcanizing the joint between the old and new conveyor belts; Step 5, controlling the belt release device to lower the conveyor belt a certain length onto the redirecting roller; Step 6, starting the track traction belt replacement device and adjusting the belt release speed to match the recovery speed; Step 7, shutting down the track traction belt replacement device and stopping the new conveyor belt; Step 8, disconnecting the joint between the old and new conveyor belts, pulling out the old conveyor belt, and vulcanizing the joint of the new conveyor belt; Step 9, tensioning the tail section of the machine, and after the machine has run smoothly during trial operation, dismantling the belt replacement equipment. This invention can avoid accidents caused by conveyor belt slippage due to hydraulic system failure, and the system can stop and lock after stalling and slipping. The method is simple and safe to operate and can significantly shorten the construction period.
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Description

Technical Field

[0001] This invention relates to the field of belt replacement technology for belt conveyors, and in particular to a rapid and continuous replacement device and process for high-inclination, high-strength belts. Background Technology

[0002] Currently, most mineral resource transportation systems use belt conveyors for transportation. After a certain period of use, the conveyor belts need to be replaced, and the replacement process for high-angle, high-strength conveyor belts is even more complex and dangerous. The existing process uses a ground winch to release the belt segment by segment. The distance between the winch and the wellhead is limited, so the clamps need to be reinstalled every time a new belt segment is released. The high-strength conveyor belt quick replacement process has the following problems: (1) High safety risk. There is a risk of the belt slipping during the replacement of the large-angle conveyor belt. The segment release requires multiple installation and disassembly of the clamps. If the clamps are not installed properly, it is easy to cause a safety accident; (2) Low belt replacement efficiency. The segment release method results in a discontinuous replacement process. The installation and disassembly of the clamps during this period takes up a lot of time and seriously affects the belt replacement efficiency; (3) High labor intensity. The installation and disassembly of the clamps involves a large number of workers and repeated work; (4) The existing crawler continuous belt replacement process adopts the method of pulling up the belt and releasing the belt. It is necessary to place the vulcanized new belt in front of the unloading drum. However, in reality, the belt replacement environment is small and the old belt and the new belt cannot be released at the same time. Summary of the Invention

[0003] The purpose of this invention is to provide a device and process for rapid and continuous replacement of high-inclination angle strong adhesive tape, which solves the problems of high safety risks, low tape replacement efficiency, high labor intensity, and limited space in the tape replacement environment that prevents the old and new tapes from being placed at the same time.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This invention discloses a rapid and continuous replacement device for high-inclination, high-strength conveyor belts, comprising an unloading roller. A conveyor belt safety brake, a second speed sensor, a first speed sensor, a second belt release device, and a first belt release device are sequentially arranged on the right side of the unloading roller. A vulcanizing platform is provided between the unloading roller and the conveyor belt safety brake. A redirecting roller is located diagonally below the first belt release device. A first roller, a second roller, and a third roller are installed above the unloading roller. A fourth roller is installed below the unloading roller. A track traction belt changing device is located to the left of the fourth roller, and a belt winding machine is located to the left of the track traction belt changing device.

[0006] Furthermore, the belt safety brake includes an upper belt safety brake device and a lower belt safety brake device, which are arranged in reverse order and have the same structure.

[0007] The upper-layer tape safety braking device includes a frame mounted on the ground. Two hydraulic cylinders are positioned in the middle of the frame, and brake plates are mounted on the bottom surface of each cylinder. A base plate is mounted on the frame near the brake plates. Each hydraulic cylinder includes a cylinder body assembly. A disc spring is mounted inside the cylinder body assembly via an upper and lower disc spring sleeve. A pressure screw is located at the center of the upper disc spring sleeve, extending to the outside of the cylinder body assembly. The exposed end of the pressure screw is mounted on the frame via a first locking cap and a first locking key. A piston is connected to the lower disc spring sleeve via a second locking cap and a second locking key. A guide sleeve is located at the end of the piston away from the lower disc spring sleeve. The piston rod at the center of the piston passes through the guide sleeve and is connected to the brake plate via a round nut. The guide sleeve is connected to the end of the cylinder body assembly away from the pressure screw via a hole, a locking key, and a pressure cap.

[0008] Furthermore, the track traction and track changing device is located above the fixed bracket, and a lower track locking mechanism is provided on the right side of the track traction and track changing device. The track traction and track changing device includes an upper track and a lower track.

[0009] A rapid and continuous replacement process for high-angle, high-strength adhesive tape, utilizing the high-angle, high-strength adhesive tape rapid and continuous replacement device as described above, includes the following steps:

[0010] Step 1, vulcanizing new rubber belts: vulcanize and bond the new rubber belts in sequence, and stack them neatly on the right side of the unloading drum, with the center line of the stacked new rubber belts roughly coinciding with the center line of the conveyor.

[0011] Step 2, check if the safety brake device of the conveyor belt is safe: clamp the safety brake device of the lower conveyor belt, loosen the tensioning device at the tail of the machine, start the belt conveyor to advance the upper conveyor belt a certain distance, clamp the safety brake device of the upper conveyor belt, and observe that there is no slippage before starting to change the belt.

[0012] Step 3: Cut the old tape and send it into the track traction belt changing device: Build the vulcanization platform a certain distance behind the tape on the unloading roller, cut the old tape on the vulcanization platform, wrap one end of the old tape around the top of the fourth roller, pass through the track traction belt changing device, and wind it onto the winding machine.

[0013] Step 4: Pull the new tape to the vulcanization platform and vulcanize the joint between the new and old tapes: Pass the new tape through the first tape release device, the second tape release device, the first speed sensor, the second roller, the third roller and the first roller in sequence, and enter the vulcanization platform. Vulcanize the new and old tapes on the vulcanization platform to form a joint between the new and old tapes. After vulcanization is completed, remove the vulcanization platform.

[0014] Step 5: Control the tape release device to lower the tape to a certain length on the redirecting roller: Activate the upper tape safety brake device and the lower tape safety brake device, control the first tape release device and the second tape release device to lower the tape to a certain length on the redirecting roller;

[0015] Step 6: Start the track traction and belt changing device, adjust the unloading speed to match the recovery speed, and recycle the old belt through the winding machine: Start the track traction and belt changing device, adjust the first unloading device and the second unloading device so that their unloading speed matches the recovery speed of the track traction and belt changing device, and continuously replace the old belt with the new belt, and recycle the old belt through the winding machine;

[0016] Step 7, shut down the track traction and belt changing device and stop the new belt: build the vulcanization platform a distance behind the belt under the unloading drum. When the vulcanization joint of the old and new belts reaches the vulcanization platform, shut down the track traction and belt changing device, clamp the upper belt safety brake device and the lower belt safety brake device, and stop the new belt with the first belt release device and the second belt release device.

[0017] Step 8: Disconnect the old and new belt joints, remove the old belt, and vulcanize the new belt joint: Disconnect the vulcanized joint of the old and new belts, remove the old belt from the track traction belt changing device, and pull the remaining new belt around the unloading roller to the vulcanization platform to vulcanize the new belt joint, forming a new belt vulcanized joint.

[0018] Step 9: Tension the tail section of the machine. After the machine runs smoothly during trial operation, remove the belt changing equipment. After the new belt has been vulcanized and closed, tension the tail section of the machine, start the machine for trial operation, and remove the belt changing equipment after the machine runs smoothly. The belt changing is now complete.

[0019] Furthermore, in step three, the old tape is threaded through using a field winch.

[0020] Furthermore, in step three, the lower locking belt mechanism uses hydraulic release and spring clamping, equipped with a hydraulic station to release the belt. Before the old belt passes through the lower locking belt mechanism, the upper track, the lower track, and the lower locking belt mechanism are released first. After the old belt passes through, the upper track, the lower track, and the lower locking belt mechanism clamp the old belt.

[0021] Furthermore, in step four, the first tape release device and the second tape release device adopt a hydraulic release and spring clamping method, and are equipped with a hydraulic station for release control. The installation distance between the first tape release device and the second tape release device should not be less than 30m. The new tape is threaded through the site using a winch. When the new tape passes through the first tape release device and the second tape release device, the hydraulic station is controlled to release the brake.

[0022] Furthermore, in step five, the belt safety brake is a hydraulic release mechanism with spring clamping, equipped with a hydraulic station for release control, and the lowering distance is 5-10m.

[0023] Furthermore, in step six, the first speed sensor and the second speed sensor detect the downward speed of the new conveyor belt. If the new conveyor belt is detected to be slipping down, the first belt release device, the second belt release device, the lower belt locking mechanism, and the belt safety brake will be clamped together, and the track traction belt changing device will be shut down.

[0024] Furthermore, in step eight, before the old belt is extracted from the track traction and belt changing device, the brakes of the lower locking mechanism, the upper track, and the lower track should be released. The extraction of the old belt and the traction of the new belt are carried out with the help of a winch on site.

[0025] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0026] The vulcanization of the new conveyor belt of this invention can be carried out before construction, which can reduce the construction period occupied by belt replacement; multiple rollers are arranged above the unloading roller, and the new conveyor belt is placed behind the unloading roller. The belt is pulled down by means of pulling down the belt, which realizes the belt replacement in the narrow space in front of the unloading roller; the hydraulic release brake and spring clamping belt locking and releasing device can avoid accidents caused by belt slippage due to hydraulic system failure; the speed sensor installed on the belt can stop and lock the system when the belt stalls and slips down; the conveyor belt safety brake, the first belt releasing device, the second belt releasing device, and the lower locking mechanism used in this process are all equipped with hydraulic stations to control the clamping and releasing actions, which is simple and safe to operate and can significantly shorten the construction period. Attached Figure Description

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] Figure 1 This is a schematic diagram of the first step in the rapid and continuous replacement process of the high-angle strong adhesive tape of the present invention.

[0029] Figure 2 This is a schematic diagram of step three in the rapid and continuous replacement process of the high-angle strong adhesive tape of the present invention.

[0030] Figure 3 This is a schematic diagram of step four in the rapid and continuous replacement process of the high-angle strong adhesive tape of the present invention.

[0031] Figure 4 This is a schematic diagram of step five in the rapid and continuous replacement process of the high-angle strong adhesive tape of the present invention.

[0032] Figure 5 This is a schematic diagram of step seven in the rapid and continuous replacement process of the high-angle strong adhesive tape of the present invention.

[0033] Figure 6 This is a schematic diagram of step eight in the rapid and continuous replacement process of the high-angle strong adhesive tape of the present invention.

[0034] Figure 7 This is a schematic diagram of the upper layer tape safety braking device of the present invention;

[0035] Figure 8 This is a schematic diagram of the hydraulic cylinder structure of the present invention;

[0036] Explanation of reference numerals in the attached drawings: 1. New conveyor belt; 2. First unloading device; 3. Second unloading device; 4. First speed sensor; 5. Belt safety brake; 51. Upper belt safety brake device; 52. Lower belt safety brake device; 6. Second speed sensor; 7. Fixed bracket; 8. Track traction and belt changing device; 81. Lower belt locking mechanism; 82. Upper track; 83. Lower track; 9. Winding machine; 10. First roller; 11. Second roller; 12. Third roller; 13. Fourth roller; 14. Unloading roller; 15. Redirecting roller; 16. Vulcanizing platform; 17. New and old 18. New tape vulcanizing joint; 51-1. Frame; 51-2. Hydraulic cylinder; 51-3. Brake clamp; 51-4. Base plate; 51-5. First locking cap; 51-6. First locking key; 51-7. Pressure screw; 51-8. Cylinder body assembly; 51-9. Upper sleeve of disc spring; 51-10. Disc spring; 51-11. Lower sleeve of disc spring; 51-12. Second locking cap; 51-13. Second locking key; 51-14. Piston; 51-15. Guide sleeve; 51-16. Hole locking key; 51-17. Pressure cap; 51-18. Piston rod. Detailed Implementation

[0037] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0038] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0039] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0040] like Figure 1-8 As shown, a high-inclination angle, high-strength, rapid, and continuous conveyor belt replacement device includes an unloading roller 14. On the right side of the unloading roller 14 are sequentially arranged a conveyor belt safety brake 5, a second speed sensor 6, a first speed sensor 4, a second belt release device 3, and a first belt release device 2. A vulcanizing platform 16 is provided between the unloading roller 14 and the conveyor belt safety brake 5. A redirecting roller 15 is provided diagonally below the first belt release device 2. A first roller 10, a second roller 11, and a third roller 12 are installed above the unloading roller 14. A fourth roller 13 is installed below the unloading roller 14. A track traction belt changing device 8 is provided to the left of the fourth roller 13, and a winding machine 9 is provided to the left of the track traction belt changing device 8.

[0041] Specifically, such as Figure 7-8 As shown, the tape safety brake 5 includes an upper tape safety brake device 51 and a lower tape safety brake device 52. The upper tape safety brake device 51 and the lower tape safety brake device 52 are arranged in reverse order. The upper tape safety brake device 51 and the lower tape safety brake device 52 have the same structure. The upper tape safety brake device 51 and the lower tape safety brake device 52 are used to stop the upper and lower tapes, respectively.

[0042] The upper belt safety braking device 51 includes a frame 51-1, which is mounted on the ground. Two hydraulic cylinders 51-2 are positioned in the middle of the frame 51-1. A brake plate 51-3 is mounted on the bottom surface of each hydraulic cylinder 51-2. A base plate 51-4 is mounted on the frame 51-1 near the brake plate 51-3. Each hydraulic cylinder 51-2 includes a cylinder body assembly 51-8. A disc spring 51-10 is mounted inside the cylinder body assembly 51-8 via an upper disc spring sleeve 51-9 and a lower disc spring sleeve 51-11. A pressure screw 51-7 is positioned at the center of the upper disc spring sleeve 51-9 and extends to the cylinder body assembly 51-8. On the outside, the exposed end of the pressure screw 51-7 is mounted on the frame 51-1 via a first keycap 51-5 and a first key 51-6. A piston 51-14 is connected to the lower disc spring sleeve 51-11 via a second keycap 51-12 and a second key 51-13. A guide sleeve 51-15 is provided at the end of the piston 51-14 away from the lower disc spring sleeve 51-11. The piston rod 51-18 at the center of the piston 51-14 passes through the guide sleeve 51-15 and is connected to the brake clamp 51-3 via a round nut. The guide sleeve 51-15 is connected to the end of the cylinder assembly 51-8 away from the pressure screw 51-7 via a hole, a key 51-16, and a pressure cap 51-17. The upper belt safety braking device 51 is driven by a hydraulic system. The pressure of the disc spring is preset by the pressure screw, which pushes the piston rod to apply pressure to the brake plate. The base plate is below the brake plate and is fixed to the frame, so that the brake plate and the base plate clamp the belt.

[0043] The track traction and track changing device 8 is located above the fixed bracket 7. A lower track locking mechanism 81 is provided on the right side of the track traction and track changing device 8. The track traction and track changing device 8 includes an upper track 82 and a lower track 83. Specifically, the model of the track traction and track changing device is BLHD-400 / 1.6.

[0044] A rapid and continuous replacement process for high-angle, high-strength adhesive tape, utilizing the high-angle, high-strength adhesive tape rapid and continuous replacement device as described above, includes the following steps:

[0045] Step 1, vulcanizing the new tape: unfold all the new tapes 1 in sequence and vulcanize them into a whole, and stack them neatly on the right side of the unloading roller 14, with the center line of the stacked new tapes 1 roughly coinciding with the center line of the conveyor.

[0046] Step 2: Check if the safety brake device of the conveyor belt is safe: Control the hydraulic station to clamp the safety brake device 52 of the lower conveyor belt, loosen the tensioning device at the tail of the machine, start the belt conveyor so that the upper conveyor belt advances about 300mm, control the hydraulic station to clamp the safety brake device 51 of the upper conveyor belt, and after ten minutes, if the conveyor belt does not slip, it means that the safety brake is effective and you are ready to change the belt.

[0047] Step 3: Cut the old tape and send it into the track traction belt changing device: Build the vulcanization platform 16 a distance behind the tape on the unloading roller 14. Cut the old tape on the vulcanization platform 16. Use a field winch to pass one end of the cut old tape over the top of the fourth roller 13 and through the lower locking mechanism 81 into the middle of the upper track 82 and the lower track 83 of the track traction belt changing device 8, and pull it onto the winding machine 9.

[0048] The lower locking belt mechanism 81 uses hydraulic release and spring clamping. It is equipped with a hydraulic station to release the belt. Before the old belt passes through the lower locking belt mechanism 81, the upper track 82, the lower track 83 and the lower locking belt mechanism 81 are released first. After the old belt passes through, the upper track 82, the lower track 83 and the lower locking belt mechanism 81 clamp the old belt.

[0049] Step 4: Pull the new tape to the vulcanization platform and vulcanize the joint between the new and old tapes: The new tape 1 is pulled by the on-site winch and passes through the first tape release device 2, the second tape release device 3, the first speed sensor 4, the second roller 11, the third roller 12 and the first roller 10 in sequence, and enters the vulcanization platform 16. The new and old tapes are vulcanized on the vulcanization platform 16 to form a vulcanization joint 17 between the new and old tapes. After vulcanization is completed, the vulcanization platform 16 is removed.

[0050] The first tape release device 2 and the second tape release device 3 adopt hydraulic release and spring clamping, and are equipped with a hydraulic station for release control. The installation distance between the first tape release device 2 and the second tape release device 3 should not be less than 30m. The new tape 1 is threaded by a field winch. When the new tape 1 passes through the first tape release device 2 and the second tape release device 3, the hydraulic station is controlled to release the brake. After passing through, the hydraulic station is controlled to pass through the first roller 10, the second roller 11 and the third roller 12 at an appropriate speed.

[0051] Step 5: Control the tape release device to lower the tape to a certain length on the redirecting roller: Activate the upper tape safety brake device 51 and the lower tape safety brake device 52, and control the first tape release device 2 and the second tape release device 3 to lower the tape to a certain length on the redirecting roller 15.

[0052] The belt safety brake 5 is a hydraulic release and spring clamping type, equipped with a hydraulic station for release control, and the lowering distance is 5-10m;

[0053] Step Six: Activate the track traction and belt changing device, adjust the unloading speed to match the recovery speed, and recycle the old belt through the winding machine: Activate the track traction and belt changing device 8, adjust the first unloading device 2 and the second unloading device 3 so that their unloading speed matches the recovery speed of the track traction and belt changing device 8, the old belt is pulled out from the lower belt safety brake device 52 by the traction of the track traction and belt changing device 8, and the new belt 1 is brought in from the upper belt safety brake device 51 by the old belt, the new belt 1 continuously replaces the old belt, and the old belt is recycled through the winding machine 9;

[0054] During the above process, the first speed sensor 4 and the second speed sensor 6 detect the downward speed of the new tape 1. If the new tape 1 is detected to be slipping, the first tape release device 2, the second tape release device 3, the lower tape locking mechanism 81 and the tape safety brake 5 will be clamped, and the track traction and tape changing device 8 will be shut down.

[0055] Step 7, shut down the track traction and belt changing device and stop the new belt: build the vulcanization platform 16 at a distance behind the belt under the unloading roller 14. When the vulcanization joint 17 of the old and new belts reaches the vulcanization platform 16, shut down the track traction and belt changing device 8, clamp the upper belt safety brake device 51 and the lower belt safety brake device 52, and stop the new belt 1 with the first belt release device 2 and the second belt release device 3.

[0056] Step 8: Disconnect the old and new tape joints, remove the old tape, and vulcanize the new tape joint: Disconnect the vulcanized joint 17 of the old and new tapes at the vulcanization platform 16. Control the hydraulic station to release the brakes of the upper track 82, the lower track 83, and the lower locking mechanism 81. Use the on-site winch to pull the old tape out from the track traction and tape changing device 8 and use the tape winding machine 9 to recycle it. Then, pull the remaining new tape 1 out from the first tape release device 2 and the second tape release device 3, and pull it over the unloading roller 14 to the vulcanization platform 16 to vulcanize the new tape joint, forming a new tape vulcanized joint 18. After the vulcanization is completed and the inspection is qualified, remove the vulcanization platform 16.

[0057] Step 9: Tension the tail section of the conveyor. After the machine runs smoothly during trial operation, remove the belt changing equipment: After the new belt 1 is vulcanized and closed, tension the tail section of the conveyor, slowly start the conveyor, and check for belt deviation. After confirming that there is no deviation, load and test run. During the trial run, gradually increase the transport volume until the rated transport volume is reached and the operation is stable. Remove all the belt changing equipment, and the belt changing is completed.

[0058] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A rapid and continuous replacement process for high-angle, high-strength adhesive tape, comprising a rapid and continuous replacement device for high-angle, high-strength adhesive tape, characterized in that: The system includes an unloading roller (14), on the right side of which are arranged a belt safety brake (5), a second speed sensor (6), a first speed sensor (4), a second belt release device (3), and a first belt release device (2). A vulcanizing platform (16) is provided between the unloading roller (14) and the belt safety brake (5). A redirecting roller (15) is provided diagonally below the first belt release device (2). A first roller (10), a second roller (11), and a third roller (12) are installed above the unloading roller (14). A fourth roller (13) is installed below the unloading roller (14). A track traction belt changing device (8) is provided on the left side of the fourth roller (13). A winding machine (9) is provided on the left side of the track traction belt changing device (8). The tape safety brake (5) includes an upper tape safety brake device (51) and a lower tape safety brake device (52). The upper tape safety brake device (51) and the lower tape safety brake device (52) are arranged in reverse order. The upper tape safety brake device (51) and the lower tape safety brake device (52) have the same structure. The upper belt safety braking device (51) includes a frame (51-1) set on the ground. Two hydraulic cylinders (51-2) are arranged in the middle of the frame (51-1). A brake plate (51-3) is provided on the bottom surface of the hydraulic cylinder (51-2). A base plate (51-4) is provided on the side of the frame (51-1) near the brake plate (51-3). The hydraulic cylinder (51-2) includes a cylinder body assembly (51-8). A disc spring (51-10) is installed inside the cylinder body assembly (51-8) through an upper disc spring sleeve (51-9) and a lower disc spring sleeve (51-11). A pressure screw (51-7) is arranged at the center of the upper disc spring sleeve (51-9) and extends to the cylinder body assembly (51-8). On the outside, the exposed end of the pressure screw (51-7) is mounted on the frame (51-1) via a first keycap (51-5) and a first key (51-6). A piston (51-14) is connected to the lower disc spring sleeve (51-11) via a second keycap (51-12) and a second key (51-13). A guide sleeve (51-15) is provided at the end of the piston (51-14) away from the lower disc spring sleeve (51-11). The piston rod (51-18) at the center of the piston (51-14) passes through the guide sleeve (51-15) and is connected to the brake clamp (51-3) via a round nut. The guide sleeve (51-15) is connected to the end of the cylinder assembly (51-8) away from the pressure screw (51-7) via a hole, a key (51-16), and a pressure cap (51-17). The track traction and track changing device (8) is set above the fixed bracket (7), and a lower track locking mechanism (81) is set on the right side of the track traction and track changing device (8). The track traction and track changing device (8) includes an upper track (82) and a lower track (83). The aforementioned high-angle, high-strength tape quick and continuous replacement device includes the following steps for changing the tape: Step 1, vulcanizing the new tape: vulcanize the new tape (1) in sequence and stack them neatly on the right side of the unloading roller (14), with the center line of the stacked new tape (1) roughly coinciding with the center line of the conveyor. Step 2, check if the safety brake device of the conveyor belt is safe: clamp the safety brake device (52) of the lower layer conveyor belt, loosen the tensioning device at the tail of the machine, start the belt conveyor to make the upper belt advance a certain distance, clamp the safety brake device (51) of the upper layer conveyor belt, and observe that there is no slippage before starting to change the belt. Step 3: Cut the old tape and send it into the track traction belt changing device: Build the vulcanization platform (16) a distance behind the tape on the unloading roller (14), cut the old tape on the vulcanization platform (16), wrap one end of the old tape around the top of the fourth roller (13), pass through the track traction belt changing device (8), and wind it onto the winding machine (9); Step 4: Pull the new tape to the vulcanization platform and vulcanize the new and old tapes together: Pass the new tape (1) through the first tape release device (2), the second tape release device (3), the first speed sensor (4), the second roller (11), the third roller (12) and the first roller (10) in sequence, and enter the vulcanization platform (16). Vulcanize the new and old tapes on the vulcanization platform (16) to form a vulcanization joint (17) between the new and old tapes. After vulcanization is completed, remove the vulcanization platform (16). Step 5: Control the tape release device to lower the tape to a certain length on the redirecting roller: Activate the upper tape safety brake device (51) and the lower tape safety brake device (52), control the first tape release device (2) and the second tape release device (3), and lower the tape to a certain length on the redirecting roller (15). Step 6: Start the track traction belt changing device, adjust the unloading speed to match the recovery speed, and recycle the old belt through the winding machine: Start the track traction belt changing device (8), adjust the first unloading device (2) and the second unloading device (3) to match the unloading speed of the belt to match the recovery speed of the track traction belt changing device (8), and continuously replace the old belt with the new belt (1). The old belt is recycled through the winding machine (9). Step 7, shut down the track traction and belt changing device and stop the new belt: build the vulcanization platform (16) a distance behind the belt under the unloading roller (14). When the vulcanization joint (17) of the old and new belts reaches the vulcanization platform (16), shut down the track traction and belt changing device (8), clamp the upper belt safety brake device (51) and the lower belt safety brake device (52), and stop the new belt (1) with the first belt release device (2) and the second belt release device (3). Step 8: Disconnect the old and new tape joints, remove the old tape, and vulcanize the new tape joint: Disconnect the vulcanized joint (17) of the old and new tapes, remove the old tape from the track traction belt changing device (8), and pull the remaining new tape (1) around the unloading roller (14) to the vulcanization platform (16) to vulcanize the new tape joint and form a new tape vulcanized joint (18); Step 9: Tension the tail of the machine. After the machine runs smoothly, remove the belt changing equipment: After the new belt (1) is vulcanized and closed, tension the tail of the machine, start the machine for trial operation, and remove the belt changing equipment after the machine runs smoothly. The belt changing is completed.

2. The rapid and continuous replacement process for high-angle, high-strength adhesive tape according to claim 1, characterized in that: In step three, the old tape is threaded through using a field winch.

3. The rapid and continuous replacement process for high-angle, high-strength adhesive tape according to claim 1, characterized in that: In step three, the lower locking belt mechanism (81) uses hydraulic release and spring clamping. It is equipped with a hydraulic station to release the belt. Before the old belt passes through the lower locking belt mechanism (81), the upper track (82), the lower track (83) and the lower locking belt mechanism (81) are released first. After the old belt passes through, the upper track (82), the lower track (83) and the lower locking belt mechanism (81) are used to clamp the old belt.

4. The rapid and continuous replacement process for high-angle, high-strength adhesive tape according to claim 1, characterized in that: In step four, the first tape release device (2) and the second tape release device (3) adopt hydraulic release and spring clamping, and are equipped with a hydraulic station for release control. The installation distance between the first tape release device (2) and the second tape release device (3) should not be less than 30m. The new tape (1) is threaded by a field winch. When the new tape (1) passes through the first tape release device (2) and the second tape release device (3), the hydraulic station is controlled to release the brake.

5. The rapid and continuous replacement process for high-angle, high-strength adhesive tape according to claim 1, characterized in that: In step five, the belt safety brake (5) is hydraulically released and spring-clamped, equipped with a hydraulic station for release control, and the lowering distance is 5-10m.

6. The rapid and continuous replacement process for high-angle, high-strength adhesive tape according to claim 1, characterized in that: In step six, the first speed sensor (4) and the second speed sensor (6) detect the downward speed of the new tape (1). If the new tape (1) is detected to be slipping, the first tape release device (2), the second tape release device (3), the lower tape locking mechanism (81) and the tape safety brake (5) will be clamped together, and the track traction and tape changing device (8) will be shut down.

7. The rapid and continuous replacement process for high-angle, high-strength adhesive tape according to claim 1, characterized in that: In step eight, before the old belt is extracted from the track traction and belt changing device (8), the brakes of the lower locking mechanism (81), the upper track (82) and the lower track (83) should be released. The extraction of the old belt and the traction of the new belt (1) are carried out with the help of a winch on site.

Citation Information

Patent Citations

  • Conveying belt change method for conveyor

    CN103738661A