An auxiliary device for replacing the idler of a belt conveyor

Abstract

The present invention relates to the technical field of idler replacement for belt conveyors, and particularly to an auxiliary idler replacement device for belt conveyors, which includes a base and a fixed seat fixedly connected to the bottom of the base. A scissor lift is installed on the base, and a guide frame is slidably connected to the scissor lift. A cross plate is fixedly connected to the guide frame and is used to support and lift the upper belt. In the present invention, the device is moved to the belt support, and through the contact between the clamping plate and the belt support, the device can be fixed on the belt support. Subsequently, the stepping motor is started to drive the screw rod to rotate. The rotation of the screw rod drives the movable seat to drive the swing arms on the left and right sides to move synchronously in and out, so that the swing arms quickly move to a position suitable for supporting the width of the upper belt. Subsequently, the upper belt can be supported and lifted by the swing arms and the cross plate to replace the idler. In this way, the position suitable for supporting the width of the upper belt can be quickly adjusted and then the idler replacement can be completed. The adjustment is convenient, thereby improving the efficiency of idler replacement.

Description

Technical Field

[0001] The present invention relates to the technical field of idler replacement for belt conveyors, and particularly to an auxiliary idler replacement device for belt conveyors. Background Art

[0002] As an important transportation device in places such as coal mines and factories, belt conveyors have the characteristics of large transportation volume, long transportation distance, high efficiency, continuous transportation, safe operation, and low noise, and play an irreplaceable role in material transportation. Idlers, as important components of belt conveyors, play a key supporting role for the conveyor belt and materials. However, during actual operation, idlers often need to be replaced regularly due to long-term loading, wear, or accidental damage.

[0003] Chinese Patent with publication number CN116674952A discloses an auxiliary idler replacement device, which relates to the technical field of idler replacement. The device includes a support mechanism and an upper support rod. The support mechanism is respectively arranged on both sides of the upper idler group. The support mechanism successively includes a second fixing member, a jack, and a first fixing member from bottom to top. The second fixing member is used for installation on the belt support. The jack is installed on the second fixing member, and the output end of the jack is connected to the first fixing member. The upper support rod hangs above the upper idler group, and both ends of the upper support rod are respectively installed on the first fixing members on both sides of the upper idler group. The upper support rod is used to drive the upper belt away from the upper idler group under the drive of the support mechanism. Although the above patent can support the conveyor belt and then replace the idler, due to the different widths of the conveyor belts of different models of belt conveyors, when the upper support rod of the device supports the conveyor belt, operators need to manually adjust the buckle positions at both ends of the upper support rod according to specific situations to adapt to different conveyor belt widths. This adjustment process is not only cumbersome but also prone to delaying time during emergency idler replacement, affecting the efficiency of idler replacement.

[0004] The present invention aims to solve the problems existing in the above patent. Therefore, an auxiliary idler replacement device for belt conveyors is proposed, which can quickly adjust the width of the support for the upper belt and then complete the idler replacement, with convenient adjustment and improved idler replacement efficiency. Summary of the Invention

[0005] In order to overcome the disadvantages that due to the different widths of the conveyor belts of different models of belt conveyors, when the upper support rod of the device supports the conveyor belt, operators need to manually adjust the buckle positions at both ends of the upper support rod according to specific situations to adapt to different conveyor belt widths. This adjustment process is not only cumbersome but also prone to delaying time during emergency idler replacement, affecting the efficiency of idler replacement, the present invention provides an auxiliary idler replacement device for belt conveyors, which can quickly adjust the width of the support for the upper belt and then complete the idler replacement, with convenient adjustment and improved idler replacement efficiency.

[0006] The present invention is achieved through the following technical approaches:

[0007] Base comprises support, castor, and frame upper is provided with guide rail, and support and conveyer frames movable end contact site are provided with recoil spring or rubber cushion, and castor is arranged on the pin of base bottom four, to carry mobile handler location.

[0008] Further explanation, the angle adjustment assembly includes a worm gear fixedly mounted on the shaft of the swing arm, an L-shaped plate fixedly connected to the movable seat, an inner spline cylinder rotatably connected to the L-shaped plate, a worm engaged with the worm gear fixedly connected to the end of the inner spline cylinder, a first spline shaft slidingly connected to the inner side of the inner spline cylinder, a movable block symmetrically slidably connected to the fixed seat, the movable block is rotatably connected to the inner spline cylinder, and a driving assembly is provided on the fixed seat for driving the first spline shaft to rotate.

[0009] Further explanation, the drive assembly includes an L-shaped seat fixedly connected to the movable block, a first spline shaft passes through the L-shaped seat, a spline sleeve is laterally rotatably connected to the L-shaped seat, the end of the spline sleeve and the end of the first spline shaft are connected by a bevel gear assembly, a second spline shaft is laterally rotatably connected to the fixed seat, and the second spline shaft is slidably connected to the inner side of the spline sleeve.

[0010] Further explanation, the belt conveyor roller auxiliary replacement device also includes a clamping assembly, the clamping assembly includes a splint symmetrically slidably connected to the inner side of the fixed seat, which is used to fix the fixed seat on the belt bracket, and a driving screw is rotatably connected to the fixed seat, and the driving screw is threadedly connected to one of the splints. A servo motor is installed on the fixed seat, and the output shaft end of the servo motor is fixedly connected to the end of the driving screw. A transmission assembly is arranged between the splint and the fixed seat, which is used to drive the right splint to move synchronously.

[0011] To further illustrate, the transmission assembly includes a spur gear rotatably connected to a fixed base, a rack fixed to a clamping plate, and the rack slidingly penetrates the fixed base and engages with the spur gear.

[0012] Further explanation, the belt conveyor roller auxiliary replacement device also includes a stabilizing component, which includes a slide symmetrically slidably connected to the inner side of the fixed seat, the slide is located between the clamping plates, and a slide rod is symmetrically slidably penetrated on the slide, and a clamping block is fixed between the ends of the slide rod on each side for further fixing the fixed seat, and a connecting spring is symmetrically connected to the slide block and is sleeved on the slide rod. Electric screws are installed on both sides of the fixed seat, and the electric screws are threadedly connected to the slide.

[0013] Further explanation: the belt conveyor roller auxiliary replacement device also includes a guide roller rotatably connected to the top of the cross plate and the top of the swing arm, which is used to guide the upper belt.

[0014] Further explanation: the belt conveyor roller auxiliary replacement device also includes a rubber sleeve fixedly mounted on the circumference of the outer side surface of the guide roller, which is used to increase the friction between the upper belt and the guide roller.

[0015] The present invention is significantly improved in that:

[0016] 1. Move the device to the belt bracket, and fix the device on the belt bracket through the contact between the splint and the belt bracket. Then start the stepper motor to drive the screw to rotate. The rotation of the screw drives the left and right swing arms to move synchronously inward and outward through the movable seat, so that the swing arm can quickly move to the position of the appropriate upper belt width support. Then, the upper belt support can be lifted up by the swing arm and the cross plate to replace the roller. In this way, the roller replacement can be completed after quickly adjusting to the position suitable for the upper belt width support. The adjustment is convenient, thereby improving the efficiency of roller replacement.

[0017] 2. Under the action of the clamping block, it can contact with the belt bracket, and the clamping block can further fix the device on the belt bracket. In this way, the fixing base can be further fixed on the belt bracket, so that the device can more stably support the upper belt.

[0018] 3. Under the action of the guide roller, whenever the swing arm and the cross plate support the upper belt through the guide roller, the guide roller can guide the upper belt, and the belt conveyor can replace the roller without stopping the machine. In this way, the upper belt can be replaced without stopping the machine, thereby not affecting the use of the belt conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the drive block, bidirectional screw and drive motor of the present invention.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the movable seat and the swing arm of the present invention.

[0022] Figure 4 This is a schematic three-dimensional structure diagram of the screw rod of the present invention.

[0023] Figure 5 This is a schematic three-dimensional structure diagram of the angle adjustment component of the present invention.

[0024] Figure 6 This is a schematic three-dimensional structure diagram of the internal spline cylinder and the first spline shaft of the present invention.

[0025] Figure 7 This is a schematic three-dimensional structure diagram of the clamping component of the present invention.

[0026] Figure 8 This is a schematic three-dimensional structure diagram of the stabilizing component of the present invention.

[0027] Figure 9 This is a schematic three-dimensional structure diagram of the slide bar and the clamping block of the present invention.

[0028] Figure 10 This is a schematic three-dimensional structure diagram of the wire roller of the present invention.

[0029] Figure 11 This is a schematic three-dimensional structure diagram of the rubber sleeve of the present invention.

[0030] The labels in the figure are: 1 - base, 2 - fixed seat, 3 - scissor lift, 31 - drive block, 32 - bidirectional screw rod, 33 - drive motor, 4 - guide frame, 5 - cross plate, 6 - movable seat, 61 - swing arm, 62 - fixed frame, 63 - stepper motor, 64 - screw rod, 7 - worm gear, 71 - L-shaped plate, 72 - internal spline cylinder, 721 - first spline shaft, 73 - worm, 74 - movable block, 75 - L-shaped seat, 76 - second spline shaft, 77 - spline shaft sleeve, 78 - circular frame, 8 - clamping plate, 81 - drive screw rod, 82 - servo motor, 83 - rack, 84 - spur gear, 9 - sliding seat, 91 - slide bar, 92 - clamping block, 93 - connecting spring, 94 - electric screw rod, 10 - guide roller, 11 - rubber sleeve. Detailed implementation manners

[0031] First, it should be noted that in the embodiments described differently, the same components are provided with the same reference numerals or the same component names. Among them, the disclosed content included in the entire specification can be transferred meaningfully to the same components with the same reference numerals or the same component names. The positional descriptions selected in the specification, such as up, down, lateral, etc., also refer to the directly described and illustrated drawings and are transferred meaningfully to the new positions when the positions change.

[0032] Example: An auxiliary replacement device for the idler of a belt conveyor, please refer to Figures 1-6As shown in the figure, it includes a base 1 and a fixed seat 2 fixedly connected to the bottom of the base 1. A scissor lift is installed on the base 1. The scissor lift includes a scissor lift frame 3, a driving block 31, a bidirectional screw 32 and a driving motor 33. The driving blocks 31 are symmetrically and slidably connected to the left and right in the middle of the base 1. A scissor lift frame 3 is installed between the driving blocks 31 on the left and right sides. A bidirectional screw 32 is horizontally rotatably connected to the middle of the base 1. The threads on the left and right sides of the bidirectional screw 32 are opposite. The bidirectional screw 32 is threadedly connected to the middle parts of the driving blocks 31 on the left and right sides. A driving motor 33 is embedded and installed on the right side of the base 1. The end of the output shaft of the driving motor 33 is fixedly connected to the right end of the bidirectional screw 32. A guide frame 4 is slidably connected between the two ends of the top of the scissor lift frame 3. A cross plate 5 is fixedly connected to the top of the guide frame 4. When the cross plate 5 moves upward, the cross plate 5 can support and lift the upper belt. It also includes a movable seat 6, a swing arm 61, a fixed frame 62, a stepping motor 63, a screw rod 64 and an angle adjustment component. A fixed frame 62 is fixedly connected to the rear side of the cross plate 5. Movable seats 6 are symmetrically and slidably connected to the left and right inside the fixed frame 62. The movable seats 6 contact the top of the cross plate 5. Swing arms 61 are rotatably connected to the ends of the movable seats 6 on the left and right sides that are away from each other. The swing arms 61 can support and lift the upper belt. A screw rod 64 is rotatably connected between the left and right sides of the fixed frame 62. The threads on the left and right sides of the screw rod 64 are opposite. The screw rod 64 is threadedly connected to the movable seats 6 on the left and right sides. A stepping motor 63 is installed on the outer left side of the fixed frame 62. The end of the output shaft of the stepping motor 63 is fixedly connected to the left end of the screw rod 64. The stepping motor 63 is used to drive the screw rod 64 to rotate. The screw rod 64 drives the movable seats 6 on the left and right sides to move in and out synchronously. The movable seats 6 drive the swing arms 61 on the left and right sides to move in and out synchronously, so that the swing arms 61 can be quickly adjusted to a position suitable for supporting the width of the upper belt. An angle adjustment component is provided between the fixed seat 2 and the movable seat 6. When the angle adjustment component operates, the angle adjustment component can adjust the angle of support of the swing arm 61.

[0033] Please refer to Figure 5 and Figure 6As shown, the angle adjustment assembly includes a worm gear 7, an L-shaped plate 71, an inner spline cylinder 72, a first spline shaft 721, a worm 73, a movable block 74 and a drive assembly. The front side of the shaft of the left and right swing arms 61 is fixedly sleeved with a worm gear 7, and the front side of the left and right movable seats 6 are fixedly connected with an L-shaped plate 71. The front sides of the left and right L-shaped plates 71 are rotatably connected with the inner spline cylinder 72. The top of the inner spline cylinder 72 is fixed with a worm 73. The worm 73 is meshed with the worm gear 7, and the worm 73 can drive the worm gear 7 to rotate, so that the swing arm 61 swings for angle adjustment. The inner spline cylinder 72 is slidably connected to the first spline shaft 721. The front side of the fixed seat 2 is symmetrically slidably connected with movable blocks 74. The movable blocks 74 on the left and right are respectively connected to the inner spline cylinders 72 on the left and right sides. The outer side of the lower part of the key cylinder 72 is rotatably connected, and a driving assembly is provided on the fixed seat 2. When the driving assembly is in operation, the driving assembly can drive the first spline shaft 721 to rotate; the driving assembly includes an L-shaped seat 75, a second spline shaft 76 and a spline shaft sleeve 77. The bottom of the movable blocks 74 on both sides are fixed with an L-shaped seat 75, the first spline shaft 721 passes through the L-shaped seat 75, and the lower part of the L-shaped seats 75 on both sides are horizontally rotatably connected with the spline shaft sleeves 77. The ends of the spline shaft sleeves 77 on both sides are close to each other and are respectively connected to the bottom ends of the first spline shafts 721 on both sides through bevel gear assemblies. The lower part of the front side surface of the fixed seat 2 is horizontally rotatably connected with the second spline shaft 76, and the second spline shaft 76 is slidably connected to the inner sides of the spline shaft sleeves 77 on both sides.

[0034] See also Figure 7 As shown, the belt conveyor roller auxiliary replacement device also includes a clamping assembly installed on the fixed seat 2, the clamping assembly includes a clamping plate 8, a driving screw 81, a servo motor 82 and a transmission assembly. The clamping plate 8 is symmetrically slidably connected to the inner side of the fixed seat 2. When the clamping plate 8 moves inward and contacts the belt bracket, the clamping plate 8 can fix the fixed seat 2 on the belt bracket. The left side of the fixed seat 2 is rotatably connected with the driving screw 81, and the driving screw 81 is threadedly connected to the left clamping plate 8. The servo motor is installed on the left side of the fixed seat 2. 82. The output shaft end of the servo motor 82 is fixedly connected to the left end of the driving screw 81. A transmission assembly is provided between the left and right side splints 8 and the fixed seat 2. When the transmission assembly is in operation, the transmission assembly can drive the right side splint 8 to move synchronously; the transmission assembly includes a rack 83 and a spur gear 84. The middle part of the fixed seat 2 is rotatably connected to the spur gear 84. The racks 83 are fixed to the right side rear surface of the left splint 8 and the left side front surface of the right splint 8. The racks 83 on both sides slide through the fixed seat 2 and engage with the spur gear 84.

[0035] First, place the device on the belt bracket and make the cross plate 5 under the upper belt, then start the servo motor 82 to rotate forward, the servo motor 82 rotates forward to drive the driving screw 81 to rotate forward, the driving screw 81 rotates forward to drive the left splint 8 to move right, the left splint 8 moves right to drive the left rack 83 to move right, the left rack 83 moves right to drive the spur gear 84 to rotate forward, the spur gear 84 rotates forward to drive the right rack 83 to move left, the right rack 83 moves left to drive the right splint 8 to move left, when the right splint 8 moves to the left and the left splint 8 moves to the right and both come into contact with the belt bracket, the left and right side splints 8 cooperate to make the fixed seat 2 directly under the upper belt, which also makes the cross plate 5 directly under the upper belt, turn off the servo motor 82, and the left and right side splints 8 cooperates to fix the fixed seat 2 on the belt bracket, making the whole device more stable to use, and then starts the stepper motor 63 to drive the screw rod 64 to rotate alternately forward and reverse, and the screw rod 64 drives the left and right movable seats 6 to move synchronously inward and outward, and the movable seat 6 drives the left and right swing arms 61 to move synchronously inward and outward. When the left and right swing arms 61 move to a position suitable for the upper belt width support, turn off the stepper motor 63, and then twist the circular frame 78 to rotate and drive the second spline shaft 76 to rotate, the second spline shaft 76 rotates to drive the spline shaft sleeve 77 to rotate, the spline shaft sleeve 77 rotates and drives the first spline shaft 721 to rotate through the bevel gear assembly, the first spline shaft 721 rotates and drives the inner spline cylinder 72 to rotate, the inner spline cylinder 72 rotates and drives the worm 73 to rotate, and the worm 73 drives The worm gear 7 rotates, and the rotation of the worm gear 7 drives the left and right swing arms 61 to swing upward. When the left and right swing arms 61 swing upward to an angle adapted to the support of the upper belt, the twisting of the circular frame 78 is stopped, the second spline shaft 76 stops driving the spline shaft sleeve 77 to rotate, the worm 73 stops driving the worm gear 7 to rotate, and the worm gear 7 stops driving the swing arm 61 to swing. The swing arm 61 and the cross plate 5 form a V-shaped groove structure and adapt to the upper belt of the belt conveyor, and the drive motor 33 can be started to drive the bidirectional screw 32 to rotate. The rotation of the bidirectional screw 32 drives the left and right drive blocks 31 to move in the direction of approaching each other. The movement of the drive block 31 drives the scissor-type lifting frame 3 to extend, and the extension of the scissor-type lifting frame 3 drives the guide frame 4 to move upward, and the guide frame 4 moves upward to drive the cross The plate 5 moves upward, and the cross plate 5 drives the movable seat 6 to move upward through the fixed frame 62. The movable seat 6 drives the swing arm 61 and the L-shaped plate 71 to move upward. The L-shaped plate 71 drives the inner spline cylinder 72 to move upward and slide on the first spline shaft 721. At the same time, when the swing arm 61 and the cross plate 5 move upward and contact the upper belt, the swing arm 61 cooperates with the cross plate 5 to quickly lift the upper belt, so that the upper belt is out of contact with the roller, and the drive motor 33 is turned off. Then the roller can be replaced. When the roller is replaced, the drive motor 33 is started to drive the bidirectional screw 32 to rotate in the opposite direction. The bidirectional screw 32 rotates in the opposite direction to drive the scissor-type lifting frame 3 to retract and reset. The scissor-type lifting frame 3 is reset to drive the guide frame 4 to move downward and reset. The guide frame 4 drives the cross plate 5 to move downward and reset.The transverse plate 5 is driven by the fixed frame 62 and the movable seat 6 to drive the swing arm 61 to move downward and reset. The swing arm 61 and the transverse plate 5 are reset and separated from contact with the upper belt. The upper belt stops being supported. The upper belt moves and resets to contact the replaced idler. The driving motor 33 is turned off, and then the circular frame 78 is twisted to rotate reversely. The circular frame 78 drives the second spline shaft 76 to rotate reversely, which also makes the swing arm 61 swing downward and reset. Subsequently, the servo motor 82 is started to drive the driving screw 81 to reverse. The reverse rotation of the driving screw 81 drives the left clamping plate 8 to move leftward and reset. The left clamping plate 8 drives the right clamping plate 8 to move rightward and reset through the rack 83 and the spur gear 84. The left and right clamping plates 8 are reset and separated from contact with the belt support. Then, the device can be removed from the belt support. In this way, it can be quickly adjusted to a suitable position for supporting the width of the upper belt and then the idler replacement is completed. The adjustment is convenient, thus improving the efficiency of idler replacement.

[0036] Please refer to Figure 8 and Figure 9 As shown, the belt conveyor idler auxiliary replacement device further includes a stabilizing component installed on the fixed seat 2. The stabilizing component includes a sliding seat 9, a sliding rod 91, a clamping block 92, a connecting spring 93 and an electric screw 94. The sliding seats 9 are symmetrically and slidably connected to the inside of the fixed seat 2 on the left and right. The sliding seats 9 are located between the left and right clamping plates 8. The lower parts of the left and right sliding seats 9 are symmetrically and slidably penetrated by the sliding rods 91 in the front and rear. A clamping block 92 is fixedly connected between the outer ends of each side of the sliding rod 91. When the clamping block 92 contacts the belt support, the clamping block 92 can further fix the fixed seat 2 to make the device more stable. The connecting springs 93 are symmetrically connected between the sides of the left and right clamping blocks 92 close to each other and the lower parts of the left and right sliding seats 9 in the front and rear. The connecting springs 93 are sleeved on the sliding rods 91. The electric screws 94 are installed on both sides of the fixed seat 2. The left and right electric screws 94 are respectively threadedly connected to the left and right sliding seats 9.

[0037] When the clamping plates 8 on both the left and right sides are in contact with the belt bracket to clamp and fix the fixing seat 2, start the rotation of the electric screw rod 94. The rotation of the electric screw rod 94 drives the sliding seats 9 on both the left and right sides to move away from each other. The sliding seats 9 drive the clamping blocks 92 on both the left and right sides to move away from each other through the connecting springs 93. When the clamping blocks 92 on both the left and right sides move away from each other and contact the inner side of the belt bracket, the clamping blocks 92 stop moving, and the sliding seats 9 continue to move to compress the connecting springs 93. Turn off the electric screw rod 94, and the sliding seats 9 stop moving. The clamping blocks 92 on both the left and right sides cooperate to further fix the fixing seat 2 on the belt bracket. After the idler roller is replaced, start the reverse rotation of the electric screw rod 94. The reverse rotation of the electric screw rod 94 drives the sliding seats 9 on both the left and right sides to move closer to each other for reset. The sliding seats 9 on both the left and right sides moving closer to each other first cause the connecting springs 93 to reset, and then the sliding seats 9 on both the left and right sides drive the clamping blocks 92 on both the left and right sides to move closer to each other for reset through the connecting springs 93. The clamping blocks 92 are reset and separated from the contact with the belt bracket, and the electric screw rod 94 is turned off. In this way, the fixing seat 2 can be further fixed on the belt bracket, so that the device can more firmly support and lift the upper belt.

[0038] Please refer to Figure 10 As shown, the belt conveyor idler roller auxiliary replacement device further includes a guide roller 10. Three guide rollers 10 are evenly spaced and rotatably connected to the top middle of the cross plate 5 and the top of the swing arms 61 on both the left and right sides. The guide roller 10 can guide the upper belt.

[0039] Please refer to Figure 11 As shown, the belt conveyor idler roller auxiliary replacement device further includes a rubber sleeve 11. A rubber sleeve 11 is fixedly sleeved on the outer side of all the guide rollers 10 along the circumference. The rubber sleeve 11 can increase the friction between the upper belt and the guide roller 10.

[0040] When the swing arm 61 and the cross plate 5 move upward, the swing arm 61 and the cross plate 5 drive the guide roller 10 to move upward. The guide roller 10 moves upward and contacts the upper belt. The swing arm 61 and the cross plate 5 support and lift the upper belt through the guide roller 10. In this way, the upper belt can be supported and lifted without stopping the belt conveyor. The rotation of the upper belt drives the rotation of the guide roller 10, and the guide roller 10 supports and guides the upper belt. After the idler roller is replaced, the swing arm 61 and the cross plate 5 move downward for reset and drive the guide roller 10 to move downward for reset. The guide roller 10 is reset and separated from the contact with the upper belt. In this way, the upper belt can be replaced without stopping the machine, so as not to affect the use of the belt conveyor.

[0041] When the guide roller 10 moves upward, the upward movement of the guide roller 10 causes the rubber sleeve 11 to move upward and contact the upper belt. The guide roller 10 guides the upper belt through the rubber sleeve 11. The rubber sleeve 11 increases the friction between it and the upper belt, enabling the guide roller 10 to guide the upper belt more stably, thereby improving the stability of guiding the upper belt. When the guide roller 10 moves downward to reset, the guide roller 10 causes the rubber sleeve 11 to move downward to reset.

[0042] Finally, it is necessary to state that the above content is only used to assist in understanding the technical solution of the present invention and should not be construed as a limitation on the protection scope of the present invention; any non-essential improvements and adjustments made by those skilled in the art based on the above content of the present invention fall within the scope claimed by the present invention.

Claims

1. A belt conveyor roller auxiliary replacement device, comprising a base (1) and a fixed seat (2) fixed to the bottom of the base (1), a scissor lift is installed on the base (1), a guide frame (4) is slidably connected to the scissor lift, and a transverse plate (5) is fixed to the guide frame (4) for supporting and lifting the upper belt, characterized in that: The invention also includes a fixed frame (62) fixed to the transverse plate (5), the inner side of the fixed frame (62) is symmetrically slidably connected to a movable seat (6) in contact with the top of the transverse plate (5), and the movable seat (6) is rotatably connected to a swing arm (61) to support and lift the upper belt. A screw rod (64) is rotatably connected between the two sides of the fixed frame (62), and the left and right sides of the screw rod (64) have opposite threads. The screw rod (64) is threadedly connected to the movable seat (6). A stepper motor (63) is installed on the fixed frame (62), and the output shaft end of the stepper motor (63) is fixedly connected to the end of the screw rod (64). The stepper motor (63) is used to drive the screw rod (64) to rotate, the screw rod (64) drives the movable seat (6) to move, and the movable seat (6) drives the swing arm (61) to move, so that the swing arm (61) is quickly adjusted to a position suitable for supporting the width of the upper belt. An angle adjustment component is provided between the fixed seat (2) and the movable seat (6) for adjusting the angle of the swing arm (61). The angle adjustment component includes a worm gear (7) fixedly mounted on the shaft of the swing arm (61), an L-shaped plate (71) fixedly connected to the movable seat (6), an inner spline cylinder (72) rotatably connected to the L-shaped plate (71), a worm (73) meshing with the worm gear (7) fixedly connected to the end of the inner spline cylinder (72), a first spline shaft (721) slidably connected to the inner side of the inner spline cylinder (72), a movable block (74) symmetrically slidably connected to the fixed seat (2), the movable block (74) rotatably connected to the inner spline cylinder (72), and a driving component provided on the fixed seat (2) for driving the first spline shaft (721) to rotate; The driving assembly includes an L-shaped seat (75) fixedly connected to the movable block (74), a first spline shaft (721) passing through the L-shaped seat (75), a spline shaft sleeve (77) rotatably connected to the L-shaped seat (75), an end of the spline shaft sleeve (77) and an end of the first spline shaft (721) being connected by a bevel gear assembly, a second spline shaft (76) rotatably connected to the fixed seat (2), and the second spline shaft (76) being slidably connected to the inner side of the spline shaft sleeve (77); The belt conveyor roller auxiliary replacement device also includes a clamping assembly, the clamping assembly includes a clamping plate (8) symmetrically slidably connected to the inner side of the fixed seat (2), used to fix the fixed seat (2) on the belt bracket, a driving screw (81) is rotatably connected to the fixed seat (2), the driving screw (81) is threadedly connected to one of the clamping plates (8), a servo motor (82) is installed on the fixed seat (2), the output shaft end of the servo motor (82) is fixedly connected to the end of the driving screw (81), and a transmission assembly is provided between the clamping plate (8) and the fixed seat (2) for driving the right clamping plate (8) to move synchronously; The transmission assembly includes a spur gear (84) rotatably connected to the fixed seat (2), a rack (83) fixed to the clamping plate (8), and the rack (83) slidingly penetrates the fixed seat (2) and meshes with the spur gear (84); The belt conveyor roller auxiliary replacement device also includes a stabilizing component, which includes a slide (9) symmetrically slidably connected to the inner side of the fixed seat (2), the slide (9) is located between the clamps (8), and a slide rod (91) is symmetrically slidably connected on the slide (9), and a clamping block (92) is fixed between the ends of the slide rod (91) on each side for further fixing the fixed seat (2), and a connecting spring (93) sleeved on the slide rod (91) is symmetrically connected between the clamping block (92) and the slide (9), and an electric screw (94) is installed on both sides of the fixed seat (2), and the electric screw (94) is threadedly connected to the slide (9).

2. The belt conveyor roller auxiliary replacement device according to claim 1, characterized in that: The belt conveyor roller auxiliary replacement device also includes a guide roller (10) rotatably connected to the top of the transverse plate (5) and the top of the swing arm (61) for guiding the upper belt.

3. The belt conveyor roller auxiliary replacement device according to claim 2, characterized in that: The belt conveyor roller auxiliary replacement device also includes a rubber sleeve (11) fixedly sleeved on the circumference of the outer side surface of the guide roller (10) and used to increase the friction between the upper belt and the guide roller (10).

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