An ultra-long conveyor belt bypass processing winding and unwinding device and a working method thereof

Abstract

The present application belongs to the field of belt conveyor supporting equipment, and particularly relates to an ultra-long conveyor belt bypass processing winding and unwinding device and an operation method thereof, characterized in that the bypass processing winding and unwinding device is fixedly arranged in a building near the belt conveyor, and the bypass processing winding and unwinding device is connected with the belt conveyor through a power roller bed, the power roller bed is temporarily arranged on pre-buried piles on the ground, the bypass processing winding and unwinding device comprises a winding mechanism, a fixed side stop frame and a base, and the winding mechanism and the fixed side stop frame are arranged perpendicularly and crossly. The present application has the beneficial effects that the winding mechanism frame can accommodate winding and storage of the belt with a length of more than 300 meters, even more than 600 meters, connection and vulcanization treatment of multiple conventional belts with a length of 50-100 meters can be completed in an offline state, the downtime of the conveyor is shortened, the production efficiency is improved, the existing winding device can be upgraded without affecting the normal production order of the belt conveyor, and the operation is convenient.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of belt conveyor supporting equipment, and particularly relates to an ultra-long conveyor belt bypass processing coiling and releasing device and a working method thereof. BACKGROUND

[0002] The belt conveyor, also known as the rubber belt conveyor, is an economic logistics conveying equipment indispensable for a rhythmic flow production line. The belt conveyor is mainly composed of two end drums and a closed conveying belt sleeved thereon. The driving drum is driven by a motor through a speed reducer. The conveying belt is dragged by the friction force between the driving drum and the conveying belt, facilitating programmed control and automatic operation.

[0003] The nylon conveying belt refers to the middle layer of canvas being nylon canvas. The nylon conveying belt has the characteristics of thin belt body, high strength, impact resistance, good grooving property, large interlayer adhesion, excellent flexibility and long service life, and is widely used in mines, coal yards, chemical industry, metallurgy, construction, ports and other departments.

[0004] Maintenance of the nylon conveying belt: 1) During transportation and storage, the conveying belt should be kept clean to avoid direct sunlight or rain and snow immersion, and should be kept away from acid, alkali, oil, organic solvents and other substances, and should be kept away from heat generating devices one meter away. 2) The warehouse temperature should be kept between-18-40℃, and the relative humidity should be kept between 50-80%. 3) During storage, the product should be coiled and placed, and should not be folded. When the nylon conveying belt is used, it needs to be connected at the head and tail to form a closed belt loop after being wound around the two end drums of the conveyor. The bonding method of the nylon conveying belt mainly includes cold vulcanization bonding and hot vulcanization bonding.

[0005] A rubber belt conveyor belt coiling device is disclosed in Chinese patent application No. 202323557705.7, which comprises a coiling mechanism. The coiling mechanism comprises a fixed frame, the fixed frame comprises side supports arranged on both sides, a coiling rotor is installed on the side support, at least one of the two coiling rotors is drivingly connected to a coiling motor, a coiling lever is detachably connected between the two coiling rotors, two coiling fixed discs are installed on the coiling lever, at least one of the coiling fixed discs is detachably connected to the coiling lever and can be adjusted and fixed at different positions in the length direction of the coiling lever.

[0006] The existing winding mechanism of the conveyor belt winding device is generally used to complete the winding of the belt with a length of less than 150 meters. For the winding operation of the belt with a length of more than 300 meters or even more than 600 meters, the belt roll is easy to deviate from stacking in the space exceeding the height of the side plate of the winding mechanism, which causes the deformation and damage of the belt, and even the collapse of the belt after being wound to a certain height, so that the winding cannot be completed. In addition, due to the large weight of the belt, the moment of inertia of the belt will cause the speed of the belt roll to be out of control during the winding and unwinding process, which exists a safety hazard and also interferes with the normal production order. The existing belt of the super-long conveyor needs to be connected in sections and vulcanized in sections during the replacement of the belt on site, so that the conveyor needs to be stopped for a long time (generally, the conveyor needs to be stopped for about one week for each replacement of the belt), which greatly affects the production efficiency. SUMMARY

[0007] The purpose of the present application is to provide a super-long conveyor belt bypass processing winding and unwinding device and its operation method, which overcomes the shortcomings of the prior art, adopts a dynamic and static combined winding structure, can accommodate the winding and storage of the belt with a length of more than 300 meters or even more than 600 meters, can complete the connection and vulcanization of the belt with a length of 50-100 meters in an offline state, and reduces the downtime of the conveyor for replacing the belt. A brake is arranged on the main shaft to balance the speed of the belt during winding and unwinding, avoid the safety hazard caused by speed loss, and ensure safe production.

[0008] To achieve the above purpose, the present application realizes the following technical scheme:

[0009] One of the technical schemes: a super-long conveyor belt bypass processing winding and unwinding device is fixedly arranged in a building near the belt conveyor, and is connected with the belt conveyor through a power roller, which is temporarily arranged on the pre-buried pile on the ground. The bypass processing winding and unwinding device comprises a winding mechanism, a fixed side stop frame and a base. The winding mechanism and the fixed side stop frame are arranged perpendicularly. The two ends of the winding mechanism are connected with the base. The bottom of the fixed side stop frame is located in a pit. The base is arranged on the pit along the two sides. The winding mechanism comprises a cylinder, a main shaft, a bearing seat, a brake and a speed reducer. The two ends of the cylinder are respectively provided with end plates. The inner side of the end plate is flush with the inner side of the fixed side stop frame. The end plate and the fixed side stop frame jointly limit the two sides of the belt roll on the cylinder. The main shaft is connected with the bearing seat. The bearing seat is connected with the base. One end of the main shaft is connected with the speed reducer. The brake is arranged on the main shaft between the speed reducer and the bearing seat. The fixed side stop frame comprises a left side plate, a right side plate and a bottom plate. The bottom of the left side plate and the right side plate is connected into a U-shaped structure through the bottom plate. The top of the left side plate and the right side plate is connected into an integral frame through connecting rods. The unwound length of the belt roll is 300-600 meters, and the thickness is 20-60 mm.

[0010] The left and right side plates are identical in structure and are formed by connecting several plate body units by bolts, the plate body unit comprises a base plate, a surrounding plate, a rib plate and a carrier roller, the back side of the base plate is provided with a continuous surrounding plate, the back side of the base plate is provided with a rib plate, and the base plate is provided with an array of carrier rollers, and the array unit of the array of carrier rollers is a combined roller composed of long carrier rollers and short carrier rollers.

[0011] The side wall of the cylinder body is provided with a deep groove for accommodating the end of the adhesive tape, the upper edge of the deep groove is provided with a tape pressing plate, the tape pressing plate is provided with a threaded hole, the threaded hole is provided with a locking screw, and the position of the tape pressing plate on the upper edge of the deep groove can be adjusted up and down; the width of the deep groove is 40-70mm, and the depth is 500-600mm.

[0012] At least one of the power rollers comprises a base, a frame, a working roller, a supporting roller and a roller gap adjusting oil cylinder, the base is provided with the frame, the lower side of the frame is provided with the supporting roller, the two ends of the supporting roller are connected with the frame through bearings, the upper side of the supporting roller is provided with the working roller, the top end of the roller gap adjusting oil cylinder is fixed on the frame, the piston end of the roller gap adjusting oil cylinder is connected with a cross beam, the working roller is connected with the cross beam through bearings, and the two ends of the cross beam are slidingly connected with the frame; one end of the supporting roller and the working roller is connected with a transmission device through a universal shaft, and the transmission device is a gear reducer driven by a motor.

[0013] The brake is a YWZ hydraulic push rod brake, and the speed reducer is a P3SB19 gear speed reducer.

[0014] The main shaft is a whole shaft body or is coaxially arranged by a left half shaft and a right half shaft.

[0015] The cylinder body comprises a cylinder shell and end flanges, the end flanges are connected at both ends of the cylinder shell, the outer side of the end flanges is connected with end plates, the inner side of the end plates is connected with an adapter disc, and the adapter disc is flush with the inner side of the end plate.

[0016] The two ends of the long carrier roller and the short carrier roller are connected with the base plate through rolling support seats; the long carrier roller is a single long roller or is spliced by two short carrier rollers.

[0017] Technical solution two: a kind of bypass processing take-up and pay-off device of super-long conveyor belt, adopt offline operation to wind belt on the cylinder of bypass processing take-up and pay-off device, at this time, the belt conveyor is normal, the length of belt is set according to the specification of belt conveyor, which can be connected by multiple belts, standby;When the conveyor belt needs to be replaced, remove the old belt, clean and check the driving drum and idler, and arrange the power roller between the bypass processing take-up and pay-off device and the belt conveyor on the pre-buried pile on the ground, and then send the belt to the front of the belt conveyor along the power roller, wind the belt on the driving drum according to the conventional operation method, and then perform bonding and vulcanization treatment on the end of the belt until the strength of the belt joint meets the requirements, remove the power roller, and the belt replacement operation is completed.

[0018] The bypass processing take-up and pay-off device is configured according to the specification and number of the belt conveyor to realize offline lengthening and storage of the belt, and quickly responds when the belt needs to be replaced.

[0019] Compared with the prior art, the beneficial effects of the present application are:

[0020] 1) The dynamic and static combined winding structure with winding mechanism and fixed side stopper can accommodate more than 300 meters of belt, even more than 600 meters of belt, which fills the technical gap in the field and leads the industry.

[0021] 2) The present application can lengthen and vulcanize multiple conventional 50-100 meter standard length belts in offline state, and then deliver the bonded belts to the conveyor by power roller to complete belt replacement, which greatly reduces the downtime of the conveyor during belt replacement, and the downtime is only 1 / 4 to 1 / 2 of the original (depending on the number of belt connection points).

[0022] 3) The technical solution of the present application is particularly suitable for upgrading the existing conveyor belt winding device, which does not affect the normal use of the conveyor, is easy to use, and is conducive to safety production. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic diagram of an embodiment of the present application;

[0024] Figure 2 is a right view of Figure 1 ;

[0025] Figure 3 is a top view of Figure 2 ;

[0026] Figure 4 is a structural schematic diagram of a winding mechanism in an embodiment of the present application;

[0027] Figure 5 is Figure 4 is a sectional view along A-A in the middle of the figure;

[0028] Figure 6 is a schematic view of a fixed side fender structure in an embodiment of the present application;

[0029] Figure 7 is a schematic view of a plate body unit structure in an embodiment of the present application;

[0030] Figure 8 is a schematic view of a power roller structure in an embodiment of the present application;

[0031] In the figure: 1 - winding mechanism, 2 - fixed side fender, 3 - base, 4 - cylinder, 5 - main shaft, 6 - bearing seat, 7 - brake, 8 - speed reducer, 9 - end plate, 10 - left side plate, 11 - right side plate, 12 - bottom plate, 13 - connecting rod, 14 - base plate, 15 - coaming, 16 - rib plate, 17 - array of carrier rollers, 18 - long carrier roller, 19 - short carrier roller, 20 - deep groove, 21 - rubber belt pressing plate, 22 - cylinder shell, 23 - end flange, 24 - adapter disc, 25 - auxiliary support seat, 26 - support rod, 27 - rolling support seat, 28 - power roller, 29 - base, 30 - frame, 31 - working roller, 32 - support roller, 33 - roller spacing adjustment oil cylinder, 34 - cross beam, 35 - transmission device, 36 - rubber belt. DETAILED DESCRIPTION

[0032] The technical solutions of the present application will be described in detail below in conjunction with specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0033] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the specific embodiments needed in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the specific embodiments described below are some embodiments of the present application, and those skilled in the art can also obtain other specific embodiments without creative labor on the basis of these specific embodiments.

[0034] The components of the embodiments of the present application described and shown in the specific embodiments herein can be arranged and designed in countless different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the specific embodiments is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application.

[0035] See Figures 1-8It is an embodiment structure schematic view of the bypass processing take-up and pay-off device of the super-long conveyor belt, the bypass processing take-up and pay-off device is fixedly arranged in a building near the belt conveyor, the bypass processing take-up and pay-off device and the belt conveyor are connected through a power roller, and the power roller is temporarily arranged on a pre-buried pile on the ground; the bypass processing take-up and pay-off device comprises a winding mechanism 1, a fixed side stop frame 2 and a base 3, the winding mechanism 1 and the fixed side stop frame 2 are arranged perpendicularly and crossly, two ends of the winding mechanism 1 are connected with the base 3, and the bottom of the fixed side stop frame 2 is located in a pit, and the base 3 is arranged on the pit along the two sides.

[0036] The winding mechanism 1 comprises a cylinder 4, a main shaft 5, a bearing seat 6, a brake 7 and a speed reducer 8, both ends of the cylinder 4 are respectively provided with end plates 9, the inner side of the end plate 9 is flush with the inner side of the fixed side stop frame 2, the end plate 9 and the fixed side stop frame 2 jointly guide and limit the stacking direction of the belt roll on the cylinder 4, the end plate 9 and the fixed side stop frame 2 jointly limit the two sides of the belt roll on the cylinder, the main shaft 5 is connected with the bearing seat 6, the bearing seat 6 is connected with the base 3, one end of the main shaft 5 is connected with the speed reducer 8, and the brake 7 is arranged on the main shaft 5 between the speed reducer 8 and the same side bearing seat 6.

[0037] A deep groove 20 for accommodating the end of the belt is arranged on the side wall of the cylinder 4, an upper edge of the deep groove 20 is provided with a belt pressing plate 21, the belt pressing plate 21 is provided with a threaded hole, a locking screw is arranged on the threaded hole, the position of the belt pressing plate 21 on the upper edge of the deep groove 20 can be adjusted up and down, the width of the deep groove is 40-70 mm, and the depth is 500-600 mm. The cylinder 4 comprises a cylinder shell 22 and an end flange 23, the length of the deep groove is equal to that of the cylinder shell 22, the end flange 23 is connected with both ends of the cylinder shell 22, the outer side of the end flange 23 is connected with the end plate 9, the inner side of the end plate 9 is connected with an adapter disc 24, and the adapter disc 24 is flush with the inner side of the end plate 9. In the embodiment of the main shaft 5, the main shaft 5 is a combined structure of a half shaft and a right half shaft, which is beneficial to reducing the cost and reducing the weight of the winding mechanism 1.

[0038] The fixed side fender 2 comprises a left side plate 10, a right side plate 11 and a bottom plate 12, the bottom of the left side plate 10 and the right side plate 11 is connected into a U-shaped structure by the bottom plate 12, the top of the left side plate 10 and the right side plate 11 is connected and fixed into a whole frame by a connecting rod 13, the unwinding length of the rubber belt roll is 300-600 meters, and the thickness is 20-60 mm. The left side plate 10 and the right side plate 11 are the same in structure, and are connected by bolts, the plate body unit comprises a base plate 14, a surrounding plate 15, a rib plate 16 and a roller array 17, the back side of the base plate 14 is provided with a continuous surrounding plate 15, the back side of the base plate 14 is provided with a rib plate 16, and the base plate 14 is provided with a roller array 17, and the array unit of the roller array is a combined roller composed of a long roller and a short roller. The two ends of the long roller 18 and the short roller 19 are connected with the base plate 14 through rolling support seats 27. In the embodiment, the long roller 18 is spliced by two short rollers 19, which is beneficial to reduce the manufacturing cost.

[0039] In the embodiment, the at least one power roller 28 comprises a base 29, a frame 30, a working roller 31, a supporting roller 32 and a roller gap adjusting oil cylinder 33, the base 29 is provided with the frame 30, the lower side in the frame 30 is provided with the supporting roller 32, the two ends of the supporting roller 32 are connected with the frame 30 through bearings, the working roller 31 is arranged above the supporting roller 32, the top end of the roller gap adjusting oil cylinder 33 is fixed on the frame 30, the piston end of the roller gap adjusting oil cylinder 33 is connected with a cross beam 34, the working roller 31 is connected with the cross beam 34 through a bearing, and the two ends of the cross beam 34 are slidingly connected with the frame 30; one end of the supporting roller 32 and the working roller 31 is respectively connected with a transmission device 35 through a universal shaft, the transmission device 35 is a gear reducer driven by a motor, the transmission device 35 drives the supporting roller 32 and the working roller 31 to synchronously and reversely rotate, applies a tension to the rubber belt 36, and completes the unwinding process. When the winding mechanism 1 performs the winding operation, the working roller is lifted by the roller gap adjusting oil cylinder 33, so that the resistance to the rubber belt can be reduced or eliminated.

[0040] In the embodiment, the brake 7 is a YWZ hydraulic push rod brake 7, which has the characteristics of high transmission efficiency and fast response. The main swing hinge points of the YWZ hydraulic push rod brake 7 are all provided with self-lubricating bearings, so that the transmission efficiency is high, and in application, it is not necessary to lubricate. Meanwhile, the action frequency is high, and the brake 7 can quickly respond to the brake instruction to realize frequent brake operation. In addition, the brake 7 adopts mature design and manufacturing process, and can stably operate under various working conditions to provide reliable brake performance. The brake process is stable, and no violent impact and vibration are generated, so as to reduce the damage to the equipment and structure. The speed reducer 8 is a P3SB19 gear speed reducer. The P3SB19 gear speed reducer adopts involute planetary gear transmission, reasonably utilizes internal and external meshing and power split, has the characteristics of light weight, small size, large transmission ratio range, high efficiency, stable operation and low noise, and adopts modular design. The P3SB19 gear speed reducer 8 can be changed and combined according to the requirements of customers, and has high flexibility.

[0041] In the embodiment of the application, in order to ensure the overall strength of the fixed side guard 2, after the winding mechanism frame is installed, auxiliary support seats 25 can be arranged outside the left side plate 10 and the right side plate 11, a support rod 26 has one end as a fulcrum of the auxiliary support seat 25 and the other end connected to the outside of the left side plate 10 and the right side plate 11.

[0042] The operation method of the super-long conveyor belt bypass processing winding and unwinding device provided by the application is that the belt is wound on the cylinder of the bypass processing winding and unwinding device through offline operation, at this time, the belt conveyor is normally operated, the length of the belt is set according to the specifications of the belt conveyor, and a plurality of 50-100 meter long belts are connected by vulcanization to form a super-long belt for standby; when the belt of the conveyor needs to be replaced, the old belt is removed, the driving roller and the supporting roller are cleaned and checked to ensure normal operation, the power roller is arranged between the bypass processing winding and unwinding device and the belt conveyor, the belt is sent to the front of the belt conveyor along the power roller, the belt is wound on the driving roller according to the conventional operation method, the end of the belt is connected and vulcanized, until the strength of the belt joint meets the requirements, the power roller is removed, and the belt replacement operation is completed.

[0043] The bypass processing winding and unwinding device is configured according to the specifications and the number of the belt conveyor, so as to realize offline lengthening and storage of the belt, and quickly respond when the belt needs to be replaced.

[0044] Therefore, in the embodiment of the application, the brake 7 is used to reliably control the winding and unwinding speed of the winding mechanism, so that the problem of out-of-control winding and unwinding speed caused by the change of the weight of the belt roll during the winding process can be effectively avoided, the purpose of safe production is achieved, and the existing winding device can be upgraded.

[0045] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A bypass handling and take-up device for ultra-long conveyor belts, characterized in that, The bypass treatment and retraction device is fixedly installed in a building near the belt conveyor. The bypass treatment and retraction device is connected to the belt conveyor via a powered roller conveyor, which is temporarily erected on pre-embedded piles in the ground. The bypass treatment and retraction device includes a winding mechanism, a fixed side guard, and a base. The winding mechanism and the fixed side guard are arranged perpendicularly and intersectingly. Both ends of the winding mechanism are connected to the base. The bottom of the fixed side guard is located in a pit, and the base is set on the two sides of the pit's edge. The winding mechanism includes a cylinder, a main shaft, a bearing housing, a brake, and a reducer. End plates are respectively provided at both ends of the cylinder. The inner side of the end plate is flush with the inner side of the fixed side baffle. The end plate and the fixed side baffle together limit the movement of the tape roll on both sides of the cylinder. The main shaft is connected to the bearing seat, which is connected to the base. One end of the main shaft is connected to the reducer. A brake is provided on the main shaft between the reducer and the bearing seat on the same side. The fixed side baffle includes a left side plate, a right side plate, and a bottom plate. The bottom of the left side plate and the right side plate are connected by the bottom plate to form a U-shaped structure. The top of the left side plate and the right side plate are connected and fixed by a connecting rod to form an integral frame. The unfolded length of the tape roll is 300-600 meters and the thickness is 20-60 mm.

2. The bypass handling and take-up device for ultra-long conveyor belts according to claim 1, characterized in that, The left and right side plates have the same structure, both consisting of several plate units connected by bolts. Each plate unit includes a base plate, a surrounding plate, stiffening plates, and rollers. The back side of the base plate has a continuous surrounding plate, and the back side of the base plate has stiffening plates. The base plate has an array of rollers, and the array unit of the roller array is a combination roller composed of long rollers and short rollers.

3. The bypass handling and take-up device for ultra-long conveyor belts according to claim 1, characterized in that, The side wall of the cylinder is provided with a deep groove for accommodating the end of the tape. A tape pressure plate is provided at the upper edge of the deep groove. The tape pressure plate is provided with a threaded hole and a locking screw. The position of the tape pressure plate at the upper edge of the deep groove can be adjusted up and down. The width of the deep groove is 40-70mm and the depth is 500-600mm.

4. The bypass handling and take-up device for ultra-long conveyor belts according to claim 1, characterized in that, At least one of the aforementioned powered roller conveyors includes a base, a frame, a working roller, a support roller, and a roller gap adjusting cylinder. The frame is mounted on the base, and the support roller is located on the lower side of the frame. Both ends of the support roller are connected to the frame via bearings. The working roller is located above the support roller. The top of the roller gap adjusting cylinder is fixed to the frame, and the piston end of the roller gap adjusting cylinder is connected to a crossbeam. The working roller is connected to the crossbeam via bearings, and both ends of the crossbeam are slidably connected to the frame. One end of each of the support roller and the working roller is connected to a transmission device via a universal joint. The transmission device is a one-in-two-out gear reducer driven by a motor.

5. The bypass handling and take-up device for ultra-long conveyor belts according to claim 1, characterized in that, The brake is a YWZ hydraulic push rod brake; the reducer is a P3SB19 gear reducer.

6. The bypass handling and take-up device for ultra-long conveyor belts according to claim 1, characterized in that, The main shaft is either a single shaft or composed of a left half-shaft and a right half-shaft arranged coaxially.

7. The bypass handling and take-up device for ultra-long conveyor belts according to claim 1, characterized in that, The cylinder body includes a shell and end flanges. The end flanges are connected to both ends of the shell. An end plate is connected to the outside of the end flange, and an adapter plate is connected to the inside of the end plate. The adapter plate is flush with the inside of the end plate.

8. A bypass handling and take-up device for ultra-long conveyor belts according to claim 2, characterized in that, Both ends of the long and short idlers are connected to the base plate via rolling support seats; the long idler is a single long roller or is composed of two short idlers spliced ​​together.

9. The operating method of the bypass treatment and take-up device for ultra-long conveyor belts according to any one of claims 1-8, characterized in that, Offline operation involves winding a conveyor belt onto the cylinder of the bypass processing and receiving device. The belt conveyor operates normally during this time. The belt length is set according to the conveyor specifications, and multiple sections of belt can be bonded and vulcanized to create a single extra-long belt for later use. When the conveyor belt needs replacement, the old belt is removed, and the drive roller and idler rollers are cleaned and inspected for proper operation. The powered roller conveyor is then arranged on pre-buried piles in the ground between the bypass processing and receiving device and the belt conveyor. The belt is delivered to the belt conveyor along the powered roller conveyor, and it is wound onto the drive roller using standard operating procedures. The ends of the belt are bonded and vulcanized until the strength of the belt joint meets the requirements. The powered roller conveyor is then removed, and the belt replacement operation is complete.

10. The operating method of the bypass treatment and take-up device for ultra-long conveyor belts according to claim 9, characterized in that, The bypass processing and take-up device is configured according to the specifications and quantity of the belt conveyor to realize offline belt extension and storage, and to respond quickly when the belt needs to be replaced.

Images