Auxiliary device for quickly disassembling and assembling roller

Abstract

The utility model relates to the technical field of tobacco machinery, in particular to an auxiliary device for quickly disassembling and assembling a roller, which is applied to disassembling and assembling a supporting roller of roller equipment and mainly comprises a supporting component and a lifting component. The supporting assembly is connected with the roller outer cover door and used for providing a transferring path for dismounting and mounting of the supporting roller. The height of the supporting assembly is adjustable so as to adapt to the roller supporting frames with different heights; the supporting assembly is provided with a cargo boom and is used for pre-positioning the supporting roller before lifting; the lifting assembly is connected with the top of the roller outer cover and used for providing lifting power when the supporting roller is disassembled and assembled. The lifting assembly is arranged to move in parallel in the axial direction of the roller so as to correspond to roller outer cover doors at different positions. And under the cooperative work of the supporting roller and the lifting device, the supporting roller can be quickly positioned, lifted and transferred, so that the supporting roller of the roller equipment can be efficiently disassembled and assembled.

Description

Technical Field

[0001] This utility model relates to the field of tobacco machinery technology, specifically to an auxiliary device for quick assembly and disassembly of rollers. Background Technology

[0002] In China's tobacco processing industry, roller-type equipment is the core equipment for key processes such as tobacco leaf drying, material mixing, and flavoring coating. Its operational stability and reliability directly affect the quality of tobacco products and production efficiency. As a core component of roller-type equipment, the support rollers not only support the weight of the rollers and materials but also, in conjunction with the drive system, enable continuous and automated rotation of the rollers. Their performance directly impacts the overall operation of the production line.

[0003] Due to the unique environment of tobacco processing, the support rollers operate under high temperature, high dust, and heavy load conditions for extended periods, leading to frequent malfunctions such as roller surface wear, bearing failure, and roller shaft deformation. To ensure production continuity and product quality, damaged support rollers must be repaired or replaced promptly. In actual disassembly and assembly, because the support rollers are tightly fitted with the roller shaft and bearings, they usually require complete disassembly and replacement. Furthermore, the large size and weight of this component, coupled with the confined space in its installation location, make manual operation extremely difficult.

[0004] Currently, most cigarette factories use forklifts to assist in changing support rollers; however, this method has significant drawbacks. Forklifts have poor operational flexibility, making it difficult to accurately position themselves in confined spaces and increasing the risk of collisions with surrounding equipment. Furthermore, the efficiency of manual and forklift-assisted operation is low, with a single change taking several hours, severely impacting production schedules. In addition, there are safety hazards such as falling objects and mechanical collisions during forklift handling, posing a threat to the personal safety of operators.

[0005] Therefore, the existing methods for replacing support rollers are no longer sufficient to meet the needs of efficient, safe, and intelligent production in the tobacco industry, and a new, efficient, safe, and reliable auxiliary device for disassembling and assembling support rollers needs to be developed. Summary of the Invention

[0006] To address the shortcomings of the existing technology, this utility model provides an auxiliary device for quick assembly and disassembly of rollers. The device connects to the outer cover of the roller through a support component to form a transfer channel. The lifting component provides lifting power. With the two working together, the rollers can quickly complete positioning, lifting, and transfer, achieving efficient assembly and disassembly of the support rollers of the roller equipment.

[0007] Specifically, this utility model provides an auxiliary device for quickly assembling and disassembling rollers, applied to the assembly and disassembly of support rollers in roller-type equipment; it includes a support assembly and a lifting assembly; the support assembly is connected to the outer cover of the roller and provides a transfer path for the assembly and disassembly of the support roller; the height of the support assembly is adjustable to accommodate roller support frames of different heights; the support assembly is equipped with a lifting arm for pre-positioning the support roller before lifting; the lifting assembly is connected to the top of the outer cover of the roller and provides lifting power during the assembly and disassembly of the support roller; the lifting assembly is configured to move parallel to the roller axis to correspond to the outer cover of the roller at different positions.

[0008] Furthermore, the support assembly also includes a limiting seat, a guide block, a slot, a support platform, a limiting rod, and a movable bracket;

[0009] The guide blocks are symmetrically arranged on both sides of the support platform to guide the support rollers into the transfer path;

[0010] The limiting bracket is fixed on a guide block on one side, and the limiting rod is set on the guide block on the other side opposite to the limiting bracket. The two are engaged to limit the support roller on the support platform.

[0011] The slot is located below the support platform and is used for detachable connection with the outer cover of the roller to prevent the support roller from directly contacting the outer cover of the roller when it moves along the transfer path;

[0012] The movable bracket is connected to the bottom of the support platform and is used for moving the support platform and adjusting its height.

[0013] Furthermore, the lifting assembly includes a wire rope, a hook, a traction rope, a lifting support frame, and a hoist;

[0014] The lifting support frame is bolted to the top of the drum cover to provide support for the lifting operation;

[0015] The upper end of the hoist is connected to the lifting support frame via a connecting ring, and the lower end is connected to the wire rope to provide lifting power.

[0016] The hook is connected to the wire rope and is used to hook the traction rope;

[0017] The traction rope is used to hook onto the support roller.

[0018] Furthermore, the lifting support frame has a strip-shaped hole, and an adjusting bolt passes through the strip-shaped hole; the lower end of the adjusting bolt is connected to the connecting ring; when the adjusting bolt is tightened, the installation position of the lifting assembly is fixed; when it is loosened, the adjusting bolt is allowed to slide along the strip-shaped hole to adjust the position of the lifting assembly along the axial direction of the drum.

[0019] Furthermore, the lifting arm is equipped with a lifting hook and a handle; the lifting hook is used to hook the support roller, and the handle is used to provide a point of force for the operator.

[0020] Furthermore, a first connecting rod and a second connecting rod are provided at the bottom of the support platform;

[0021] The first connecting rod has multiple adjustment holes, which, in conjunction with the movable bracket, allow for height adjustment of the support platform.

[0022] Furthermore, the movable bracket is provided with a fixing hole and a limit rod storage hole;

[0023] The fixing hole is opened on the side of the movable bracket and cooperates with the adjustment hole to adjust the height of the support platform; the movable bracket and the first connecting rod are locked by a fixing pin through the fixing hole and the adjustment hole to achieve the height fixation of the support platform;

[0024] The limit rod storage hole is located on the top of the movable bracket and is used to store unused limit rods.

[0025] Furthermore, the bottom of the movable support is equipped with casters to enable flexible movement of the support platform.

[0026] Furthermore, a protective pad is provided above the outer door of the roller, which wraps around the upper edge of the outer door of the roller to isolate the traction rope from contact with the upper edge of the outer door of the roller, thus preventing hard friction between the traction rope and the outer door of the roller when it is raised or lowered.

[0027] Working Principle: During use, the height of the support assembly is adjusted according to the height of the roller cover. The support platform 16 is adjusted to the appropriate position by engaging the adjustment hole 1611 of the support platform 16 and the fixing hole 182 of the movable bracket 18 with the fixing pin 183. The slot 15 of the support platform 16 is then connected to the lower edge of the roller cover to form a stable transfer path. The lifting support frame 24 of the lifting assembly 2 is securely connected to the top of the roller cover. Using the engagement of the adjusting bolt 242 and the slot 241, the adjusting bolt 242 is first loosened, and the position of the lifting assembly 2 is adjusted by sliding it along the roller axis to align it with the roller cover. Then, the nut on the adjusting bolt 242 is tightened to fix the adjusted position.

[0028] The protective pad 3 is fixed above the outer cover of the roller to isolate the traction rope 23 from contact with the edge of the door, so as to avoid hard friction of the traction rope 23 during lifting and avoid damage.

[0029] When disassembling the support roller, connect the traction rope 23 of the lifting assembly 2 to the support roller to be disassembled, and simultaneously hook the support roller with the lifting hook 121 on the lifting arm 12. Press down the handle 122 to fine-tune the position of the roller and lift it to the predetermined position. Start the hoist 25 to drive the wire rope 21, which in turn drives the traction rope 23 to rise, thereby pulling the support roller to move. The guide blocks 14 on both sides of the support platform 16 will guide the support roller to move along the predetermined path until the support roller is moved to the predetermined position on the support platform 16. Engage the limiting rod 17 with the limiting seat 13 to fix the support roller on the support platform 16 to prevent displacement during replacement. Separate the traction rope 23 from the support roller, and then perform the support roller replacement operation.

[0030] When installing the support roller, connect the traction rope 23 to the new support roller and release the engagement between the limit rod 17 and the limit seat 13; start the hoist 25 to drive the wire rope 21 to descend, which in turn drives the traction rope 23 to descend, and the support roller slides downward. The guide block 14 guides it back to the installation position along the original path, completing the assembly.

[0031] Beneficial effects:

[0032] 1. This invention solves the problems of difficult positioning, low efficiency, and many safety hazards in the traditional roller assembly and disassembly process by means of adjustable height, axial movement, limit protection, pre-positioning design, stable lifting, flexible movement and modular structure. It significantly improves the convenience, safety and equipment compatibility of operation and is suitable for the maintenance and repair of various roller equipment.

[0033] 2. The height-adjustable design of the support component of this utility model can adapt to roller support frames of different heights, thus expanding the applicability of the device.

[0034] 3. The lifting component of this utility model can move parallel to the roller axis by adjusting the bolts and the strip holes, flexibly corresponding to the roller outer cover door at different positions, and meeting the needs of multi-position operation.

[0035] 4. In the support assembly of this utility model, the limiting seat and the limiting rod achieve lateral limiting through interlocking. Combined with the precise guidance of the guide block, it effectively prevents downward slippage when the support roller is replaced, significantly improving operational safety.

[0036] 5. The lifting hook and handle on the lifting arm of this utility model can be used to pre-position the support rollers before lifting, reducing manual adjustment time and greatly improving disassembly and assembly efficiency.

[0037] 6. The lifting assembly of this utility model uses a hoist as a power source. The support roller is directly hooked by a wire rope and a hook. Combined with the auxiliary adjustment function of the traction rope, the lifting process is stable and the posture is controllable, thus avoiding equipment damage.

[0038] 7. The bottom of the mobile support frame of this utility model is equipped with casters, which allows the support platform to move flexibly and reduces the labor intensity of manual handling and adjustment.

[0039] 8. A protective pad is provided above the outer door of the roller in this utility model to isolate the traction rope from contact with the edge of the outer door of the roller, so as to avoid hard friction between the traction rope and the outer door of the roller during the lifting process, thereby preventing the traction rope from being worn or broken.

[0040] 9. The support platform of this utility model is detachably connected to the outer cover of the roller through a slot. When the support roller is moved, the extension of the slot covers the outer cover of the roller, so that the support roller and the outer cover of the roller are isolated from each other, avoiding direct contact between the two, thereby preventing scratches on the surface of the support roller or structural deformation. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the installation of Embodiment 1 of this utility model;

[0042] Figure 2 This is one of the schematic diagrams showing the disassembly working state of Embodiment 1 of this utility model;

[0043] Figure 3 This is the second schematic diagram of the disassembly working state of Embodiment 1 of this utility model;

[0044] Figure 4 This is a schematic diagram of the storage of the limiting rod in Embodiment 1 of this utility model;

[0045] Figure 5 This is a schematic diagram showing the connection between the limiting rod and the limiting seat in Embodiment 1 of this utility model;

[0046] Figure 6 This is one of the schematic diagrams of the support component structure in Embodiment 1 of this utility model;

[0047] Figure 7 This is a second schematic diagram of the support component structure in Embodiment 1 of this utility model;

[0048] Figure 8 This is a schematic diagram of the support component disassembled according to Embodiment 1 of this utility model;

[0049] Figure 9 This is a schematic diagram of the fixed support roller of the support assembly in Embodiment 1 of this utility model;

[0050] Figure 10 This is one of the schematic diagrams showing the cooperation between the support component and the lifting component in Embodiment 1 of this utility model;

[0051] Figure 11 This is the second schematic diagram of the cooperation between the support component and the lifting component in Embodiment 1 of this utility model;

[0052] Figure 12This is a schematic diagram of the assembly working state of Embodiment 1 of this utility model;

[0053] Figure 13 This is a schematic diagram of the installation of Embodiment 2 of this utility model;

[0054] Figure 14 Side view of the installation of Embodiment 1 of this utility model;

[0055] The diagram labels are: 1—support assembly, 12—lifting boom, 121—lifting hook, 122—handle, 13—…

[0056] —Limiting seat, 14—Guide block, 15—Slot, 16—Support platform, 161—First connecting rod, 1611

[0057] —Adjustment hole, 162—Second connecting rod, 163—Handrail, 17—Limiting rod, 18—Moving bracket, 181

[0058] —Swivel wheel, 182—Fixing hole, 183—Fixing pin, 184—Limit rod storage hole;

[0059] 2—Lifting assembly, 21—Wire rope, 22—Hook, 23—Traction rope, 24—Lifting support frame, 241—Strip hole, 242—Adjusting bolt, 243—Connecting ring, 25—Cycling hoist;

[0060] 3—Protective pad;

[0061] 4—Roller, 41—Roller cover, 42—Roller cover door;

[0062] 5—Support rollers. Detailed Implementation

[0063] The technical solution will now be described in detail with reference to the accompanying drawings of the embodiments of this utility model.

[0064] Example 1

[0065] like Figure 1 As shown, an auxiliary device for quick assembly and disassembly of rollers includes: a support assembly 1, a lifting assembly 2, and a protective pad 3;

[0066] like Figure 8 As shown, the support assembly 1 includes: a lifting arm 12, a lifting hook 121, a handle 122, a limit seat 13, a guide block 14, a slot 15, a support platform 16, a first connecting rod 161, an adjustment hole 1611, a second connecting rod 162, a handrail 163, a limit rod 17, a movable bracket 18, a caster wheel 181, a fixing hole 182, a fixing pin 183, and a limit rod storage hole 184.

[0067] like Figure 11 , 12As shown, the lifting assembly 2 includes: wire rope 21, hook 22, traction rope 23, lifting support frame 24, strip hole 241, adjusting bolt 242, connecting ring 243, and hoist 25.

[0068] like Figure 4 As shown, the support assembly 1 is connected to the outer cover door of the roller and is used to provide a transfer path for the disassembly and assembly of the support roller; the lifting arm 12 is installed on the support platform 16, and the lifting arm 12 is provided with a lifting hook 121 and a handle 122; the lifting hook 121 is used to hook the support roller, and the handle 122 is used to provide a point of force for the operator.

[0069] like Figure 5 As shown, guide blocks 14 are symmetrically arranged on both sides of the support platform 16 to guide the support rollers into the transfer path;

[0070] like Figure 6 As shown, the limiting bracket 13 is fixed on the guide block 14 on one side, and the limiting rod 17 is set on the guide block 14 on the other side opposite to the limiting bracket 13. The two are engaged to limit the support roller on the support platform 16.

[0071] The slot 15 is located below the support platform 16 and is used to detachably connect with the outer cover of the roller to prevent the support roller from directly contacting the outer cover of the roller when it moves along the transfer path.

[0072] The movable bracket 18 is connected to the bottom of the support platform 16 and is used for moving and adjusting the height of the support platform 16.

[0073] The first connecting rod 161 and the second connecting rod 162 are disposed at the bottom of the support platform 16; the first connecting rod 161 is provided with a plurality of adjustment holes 1611, which cooperate with the movable bracket 18 through the adjustment holes 1611 to realize the height adjustment of the support platform 16.

[0074] The movable bracket 18 has a fixing hole 182 and a limit rod storage hole 184.

[0075] like Figure 7 As shown, a fixing hole 182 is provided on the side of the movable bracket 18, which cooperates with the adjustment hole 1611 to adjust the height of the support platform 16; a fixing pin 183 is provided through the fixing hole 182 and the adjustment hole 1611 to lock the movable bracket 18 and the first connecting rod 161, thereby fixing the height of the support platform 16; a limit rod storage hole 184 is provided on the top of the movable bracket 18 for storing unused limit rods 17.

[0076] like Figure 8As shown, the bottom of the movable support 18 is equipped with a locking caster wheel 181 for flexible movement and positioning of the support platform 16. Unlocking the caster wheel 181 allows the movable support 18 to be pushed to the working position; locking the caster wheel 181 ensures that the support platform 16 remains stable and does not shift during operation.

[0077] like Figure 12 As shown, the lifting support frame 24 is bolted to the top of the drum cover to provide support for the lifting operation; the upper end of the hoist 25 is connected to the lifting support frame 24 via a connecting ring 243, and the lower end is connected to the wire rope 21 to provide lifting power; the hook 22 is connected to the wire rope 21 to hook the traction rope 23; the traction rope 23 is used to hook the support roller.

[0078] The lifting support frame 24 has a strip-shaped hole 241, and an adjusting bolt 242 passes through the strip-shaped hole 241. The lower end of the adjusting bolt 242 is connected to the connecting ring 243. When the adjusting bolt 242 is tightened, the installation position of the lifting assembly 2 is fixed. When it is loosened, the adjusting bolt 242 is allowed to slide along the strip-shaped hole 241 to adjust the position of the lifting assembly 2 along the axial direction of the drum.

[0079] like Figure 13 As shown, the protective pad 3 is installed above the outer door of the roller cover. The protective pad 3 wraps around the upper edge of the outer door of the roller cover to isolate the traction rope 23 from contact with the upper edge of the outer door of the roller cover, so as to avoid hard friction between the traction rope 23 and the outer door of the roller cover when the traction rope 23 is raised and lowered.

[0080] like Figure 14 As shown, when using the auxiliary device for quick roller assembly and disassembly, adjust the height of the support assembly: adjust the height of the support platform 16 in the support assembly 1 according to the height of the roller outer cover 42. Specific operation: align the adjustment hole 1611 of the support platform 16 with the fixing hole 182 of the movable bracket 18, and fix it by inserting the fixing pin 183, so that the support platform 16 is adjusted to the appropriate position. Height adjustment can be achieved through different combinations of hole positions.

[0081] Connecting a stable transfer path: The slot 15 at the front end of the support platform 16 is engaged with the lower edge of the roller outer cover door 42 to form the transfer track of the support roller 5.

[0082] Fixed lifting support frame: The lifting support frame 24 in the lifting assembly 2 is securely connected to the top of the roller cover 41 by bolts or clips.

[0083] Lateral adjustment of the lifting assembly position: Loosen the adjusting bolt 242 on the lifting support frame 24, and slide the lifting assembly 2 along the drum axis through the strip hole 241, so that the traction rope 23 and hook 22 below the hoist 25 are aligned with the center of the drum outer cover door 42. After adjustment, tighten the adjusting bolt 242 to fix the position.

[0084] Secure the protective pad 3 to the upper edge of the roller outer cover door 42 to ensure that the traction rope 23 is isolated from the edge of the door when it is lifted, so as to avoid damage to the rope due to hard friction.

[0085] like Figure 1 , 2 As shown in Figure 3, when disassembling the support roller 5: connect the traction rope 23 of the lifting assembly 2 to the support roller to be disassembled. Simultaneously, operate the lifting arm 12 so that its lifting hook 121 hooks onto the lifting lug or fixing point of the support roller 5. Fine-tune the horizontal position of the roller by pressing down the handle 122 to ensure balanced force. Operate the hoist 25 to drive the wire rope 21 to wind up, driving the traction rope 23 to vertically lift the support roller 5 until it is detached from the installation position of the drum cover 41. During the lifting process, the support roller 5 is guided by the guide blocks 14 on both sides of the support platform 16 and slides along the slot 15 into the predetermined position of the support platform 16. After reaching the position, engage the limiting rod 17 with the limiting seat 13 to fix the support roller 5 and prevent displacement. Disconnect the traction rope 23 from the support roller 5, remove the old support roller 5, and prepare to install the new support roller 5.

[0086] like Figure 12 As shown, when installing the new support roller 5: connect the new support roller 5 to the traction rope 23 via the hook 22, ensuring stability. Pull out the limit rod 17 to release its engagement with the limit bracket 13, and operate the hoist 25 to lower the wire rope 21, causing the traction rope 23 to drive the support roller 5 slowly down along the path guided by the guide block 14 until it accurately falls into the installation position of the drum cover 41. After confirming that the support roller 5 is installed in place, remove the traction rope 23 and the lifting hook 121 to complete the assembly.

[0087] Example 2

[0088] like Figure 13 As shown, the difference from Embodiment 1 is that this embodiment consists only of the lifting component 2 and the protective pad 3, and does not include the support component 1; this embodiment is suitable for scenarios where space is limited or where rapid and lightweight operation is required.

[0089] The support roller 5 is directly guided to move by the traction rope 23 of the lifting assembly 2, and the traction rope 23 of the lifting assembly 2 is connected to the support roller to be removed. The hoist 25 is operated to drive the wire rope 21 to wind up, causing the traction rope 23 to vertically lift the support roller 5 until it is removed from the installation position of the drum cover 41. The path between the support roller 5 and the drum cover 42 forms a temporary transfer track. Since the edge of the drum cover 42 is relatively hard, if the support roller 5 directly contacts and moves against it, it is easy to generate hard friction, which will not only damage the support roller 5 but may also damage the edge of the drum cover 42. To avoid this, operators can place cardboard on the temporary transfer track. Cardboard has a certain cushioning and protective function, effectively reducing the friction between the support roller 5 and the edge of the drum cover 42, ensuring that the support roller 5 is not damaged during movement. Cardboard is not standard equipment and needs to be laid manually on a temporary basis.

[0090] The operator controls the lifting position using the hoist 25, manually assists in fixing the position of the support roller 5, disconnects the connection between the traction rope 23 and the support roller 5, and removes the old support roller 5. When installing the new support roller 5, the operator connects the new support roller 5 to the traction rope 23, operates the hoist 25 to lower the wire rope 21, and slowly lowers the support roller 5 along the temporary transfer track to the roller cover installation position. After manual alignment, the installation is completed.

[0091] This embodiment significantly improves operational flexibility and cost-effectiveness through structural simplification and temporary auxiliary measures, making it particularly suitable for temporary, small-scale support roller replacement tasks and meeting diverse working conditions.

[0092] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An auxiliary device for quick assembly and disassembly of rollers, applied to the assembly and disassembly of support rollers in roller-type equipment; characterized in that: include: Support component (1) and lifting component (2); The support assembly (1) is connected to the outer cover door of the roller and is used to provide a transfer path for the disassembly and assembly of the support roller; The height of the support assembly (1) is adjustable to accommodate roller support frames of different heights; The support assembly (1) is provided with a lifting arm (12) for pre-positioning the support rollers before lifting; The lifting assembly (2) is connected to the top of the drum cover and is used to provide lifting power when the support roller is disassembled or assembled. The lifting assembly (2) is configured to move parallel to the roller axis to correspond to the roller outer cover door at different positions.

2. The auxiliary device for quick assembly and disassembly of rollers according to claim 1, characterized in that: The support assembly (1) also includes a limiting seat (13), a guide block (14), a slot (15), a support platform (16), a limiting rod (17), and a movable bracket (18); The guide blocks (14) are symmetrically arranged on both sides of the support platform (16) to guide the support rollers into the transfer path; The limiting seat (13) is fixed on the guide block (14) on one side, and the limiting rod (17) is set on the guide block (14) on the other side opposite to the limiting seat (13). The two are engaged to limit the support roller on the support platform (16). The slot (15) is located below the support platform (16) and is used to detachably connect with the outer cover of the roller to prevent the support roller from directly contacting the outer cover of the roller when it moves along the transfer path; The movable bracket (18) is connected to the bottom of the support platform (16) and is used for the movement and height adjustment of the support platform (16).

3. The auxiliary device for quick assembly and disassembly of rollers according to claim 1, characterized in that: The lifting assembly (2) includes a wire rope (21), a hook (22), a traction rope (23), a lifting support frame (24), and a hoist (25); The lifting support frame (24) is bolted to the top of the drum cover to provide support for the lifting operation; The upper end of the hoist (25) is connected to the lifting support frame (24) via a connecting ring (243), and the lower end is connected to the wire rope (21) to provide lifting power; The hook (22) is connected to the wire rope (21) and is used to hook the traction rope (23); The traction rope (23) is used to hook the support roller.

4. The auxiliary device for quick assembly and disassembly of rollers according to claim 3, characterized in that: The lifting support frame (24) has a strip hole (241) and an adjusting bolt (242) passes through the strip hole (241). The lower end of the adjusting bolt (242) is connected to the connecting ring (243). When the adjusting bolt (242) is tightened, the installation position of the lifting assembly (2) is fixed. When it is loosened, the adjusting bolt (242) is allowed to slide along the strip hole (241) to adjust the position of the lifting assembly (2) along the roller axis.

5. The auxiliary device for quick assembly and disassembly of rollers according to claim 2, characterized in that: The lifting arm (12) is provided with a lifting hook (121) and a handle (122); the lifting hook (121) is used to hook the support roller, and the handle (122) is used to provide the operator with a point of force application.

6. The auxiliary device for quick assembly and disassembly of rollers according to claim 2, characterized in that: The bottom of the support platform (16) is provided with a first connecting rod (161) and a second connecting rod (162); The first connecting rod (161) has multiple adjustment holes (1611), which cooperate with the movable bracket (18) to realize the height adjustment of the support platform (16).

7. The auxiliary device for quick assembly and disassembly of rollers according to claim 6, characterized in that: The movable bracket (18) is provided with a fixing hole (182) and a limit rod storage hole (184); The fixing hole (182) is opened on the side of the movable bracket (18) and cooperates with the adjustment hole (1611) to adjust the height of the support platform (16); by passing a fixing pin (183) through the fixing hole (182) and the adjustment hole (1611), the movable bracket (18) and the first connecting rod (161) are locked, so as to fix the height of the support platform (16); The limiting rod storage hole (184) is located on the top of the movable bracket (18) and is used to store unused limiting rods (17).

8. The auxiliary device for quick assembly and disassembly of rollers according to claim 2, characterized in that: The bottom of the movable support (18) is equipped with casters (181) to enable flexible movement of the support platform (16).

9. The auxiliary device for quick assembly and disassembly of rollers according to claim 1, characterized in that: A protective pad (3) is provided above the outer door of the roller. The protective pad (3) is wrapped around the upper edge of the outer door of the roller to isolate the traction rope (23) from contacting the upper edge of the outer door of the roller, so as to avoid hard friction between the traction rope (23) and the outer door of the roller when it is raised and lowered.

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