Split type traction roller replacement device

Abstract

The utility model belongs to glass manufacturing technical field discloses a kind of split type traction roller replacement device, including roll shaft and the roller barrel of being sleeved on roll shaft, wherein, locking groove is opened in the inner wall of roller barrel, split type traction roller replacement device includes sleeve, top rod, end cap, elastic member and locking piece, locking piece is movably arranged in the head of sleeve along sleeve radial direction, and the side wall of sleeve is provided with mounting groove, part locking piece can protrude from the outer circumferential wall of sleeve by mounting groove, and is connected with locking groove;Top rod is movably threaded in sleeve along the axial direction of sleeve, for resisting locking piece, so that locking piece protrudes from the outer circumferential wall of sleeve;End cap cover is arranged in the tail of sleeve, and is fixedly connected with sleeve, and the avoiding slot for avoiding top rod is arranged in the top of end cap;Elastic member is arranged between top rod and end cap, so that top rod has the tendency of resisting locking piece. Solve the safety problem in the process of split type traction roller roller barrel replacement, and can improve roller barrel replacement efficiency.

Description

Technical Field

[0001] This utility model relates to the field of glass manufacturing technology, and in particular to a split-type traction roller replacement device. Background Technology

[0002] In the continuous production process of substrate glass and carrier glass, the split traction roller is the core component for controlling the forming accuracy and transmission stability of glass ribbon. The split traction roller includes a roller shaft, a connecting structure and at least one roller. The roller is sleeved on the roller shaft and is detachably connected to the roller shaft through the connecting structure. The roller needs to be replaced regularly according to the production cycle or equipment maintenance needs.

[0003] Currently, the commonly used split-type traction roller replacement tools in the industry rely solely on manual support by operators or simple clips for positioning. During the roller transfer and installation process, the tool components are prone to thermal deformation due to the high temperature environment around the furnace, causing the roller to slip or shift. Once the traction roller detaches, it not only causes damage to its own structure but may also impact the refractory material or forming components inside the furnace, leading to furnace damage, requiring a long downtime for repairs, and causing significant production losses.

[0004] In addition, the existing tools have a cumbersome operating process, requiring multiple operators to work together to complete positioning, docking and fixing. They also lack a standardized quick docking structure, and the excessively long roller replacement time leads to extended downtime of the glass production line, reducing equipment utilization and product output efficiency. This makes it difficult to meet the continuous and efficient requirements of large-scale production of substrate glass and carrier glass.

[0005] Therefore, there is an urgent need to propose a split-type traction roller replacement device to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this invention is to provide a split-type traction roller replacement device to solve the safety issues during the replacement process of split-type traction rollers, prevent rollers from impacting the furnace cavity, ensure equipment operation safety and production stability, improve roller replacement efficiency, shorten production line downtime, increase equipment utilization, and meet the core requirements of continuity and efficiency in the large-scale production of substrate glass and carrier glass.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A split-type traction roller replacement device includes a roller shaft and a roller sleeved on the roller shaft. The inner wall of the roller sleeve has a locking groove. The split-type traction roller replacement device includes a sleeve, a top rod, an end cap, an elastic element, and a locking element. The locking element is movably disposed radially at the head of the sleeve, and the side wall of the sleeve has an installation groove. A portion of the locking element protrudes through the installation groove from the outer peripheral wall of the sleeve and engages with the locking groove. The top rod is movably disposed axially within the sleeve and abuts against the locking element, causing the locking element to protrude from the outer peripheral wall of the sleeve. The end cap covers the tail of the sleeve and is fixedly connected to the sleeve. The top of the end cap has a clearance groove for avoiding the top rod. The elastic element is disposed between the top rod and the end cap, giving the top rod a tendency to abut against the locking element.

[0009] In some optional embodiments, the split traction roller replacement device includes at least two locking members, which are arranged at intervals relative to each other inside the sleeve, and the inner wall of the roller is provided with locking grooves corresponding to the locking members one by one.

[0010] In some optional embodiments, a guide surface is provided on the inner side of the locking member near the top bar. The guide surface gradually slopes from the inside out towards the top bar, and the shape of the top bar near the locking member is adapted to the guide surface.

[0011] In some optional embodiments, the mounting groove includes a first groove and a second groove that are connected sequentially from the inside to the outside along the radial direction of the sleeve, and a first stepped surface is provided between the first groove and the second groove.

[0012] The locking member includes a locking part and a limiting part connected together. The limiting part is slidably fitted into the first groove, the locking part is slidably fitted into the second groove, and the limiting part can be limited and abutted against the first stepped surface.

[0013] In some alternative embodiments, a limiting block is also provided at the end of the top bar away from the locking member, and the elastic member is sandwiched between the limiting block and the inner top wall of the end cap.

[0014] In some alternative embodiments, the end cap is threadedly connected to the sleeve.

[0015] In some alternative embodiments, the split traction roller replacement device further includes a handle disposed outside the end cap and detachably connected to the end of the top bar away from the locking member.

[0016] In some alternative embodiments, the sleeve is clearance-fitted with the inner wall of the roller.

[0017] In some alternative embodiments, the head of the sleeve is chamfered.

[0018] In some alternative embodiments, the outer peripheral wall of the end cap is machined with an anti-slip texture.

[0019] The beneficial effects of this utility model are:

[0020] This utility model provides a split-type traction roller replacement device. The split-type traction roller includes a roller shaft and a roller sleeved on the roller shaft. The inner wall of the roller sleeve has a locking groove. The split-type traction roller replacement device includes a sleeve, a top rod, an end cap, an elastic element, and a locking element. The locking element is movably disposed at the head of the sleeve along the radial direction, and the side wall of the sleeve has an installation groove. Part of the locking element can protrude from the outer peripheral wall of the sleeve through the installation groove and engage with the locking groove. The top rod is movably disposed inside the sleeve along the axial direction to abut against the locking element, so that the locking element protrudes from the outer peripheral wall of the sleeve. The end cap is disposed at the tail of the sleeve and is fixedly connected to the sleeve. The top of the end cap has a relief groove for avoiding the top rod. The elastic element is disposed between the top rod and the end cap so that the top rod tends to abut against the locking element.

[0021] When replacing the split-type traction roller, the operator holds the fixed end cap and pulls the top bar along the axial direction of the sleeve. The top bar moves away from the locking element and compresses the elastic element, at which point the locking element is embedded in the sleeve. Next, the sleeve is inserted into the roller to a certain depth, aligning the locking element with the locking groove. The top bar is then released, and under the restoring force of the elastic element, it pushes against the locking element, causing it to protrude from the outer circumferential wall of the sleeve and engage with the locking groove. This achieves a stable connection between the split-type traction roller replacement device and the roller. The operator can easily move and transfer the roller through the end cap, preventing the roller from falling off or shifting during replacement. This solves the safety problem during the replacement of the split-type traction roller, effectively preventing the roller from impacting the furnace cavity and ensuring equipment operation safety and production stability.

[0022] Pulling the top bar retracts the locking element into the roller, facilitating the insertion of the sleeve into the roller. Releasing the top bar allows the locking element to quickly engage with the locking groove, thus easily and quickly establishing a secure connection between the split-type traction roller changing device and the roller. When it is necessary to separate the split-type traction roller changing device from the roller, pulling the top bar again causes the locking element to quickly retract into the sleeve under its own weight or the pressure of the inner wall of the roller, allowing the sleeve to be extracted from the roller. This improves roller changing efficiency, helps shorten production line downtime, increases equipment utilization, and meets the core requirements of continuity and efficiency for large-scale production of substrate glass and carrier glass. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the split-type traction roller replacement device described in this embodiment of the utility model;

[0025] Figure 2 This is a cross-sectional view of the split-type traction roller replacement device described in this embodiment of the utility model;

[0026] Figure 3 This is a cross-sectional view of the sleeve head according to an embodiment of the present utility model;

[0027] Figure 4 This is a cross-sectional view of the sleeve tail section as described in an embodiment of this utility model.

[0028] In the picture:

[0029] 1. Sleeve; 11. Mounting groove; 111. First groove; 112. Second groove; 113. First stepped surface; 12. Chamfer; 2. Top rod; 21. Limiting block; 3. End cap; 31. Clearance groove; 4. Elastic element; 5. Locking element; 51. Guide surface; 52. Locking part; 53. Limiting part; 6. Handle. Detailed Implementation

[0030] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] like Figures 1 to 4 As shown, this utility model provides a split-type traction roller replacement device. The split-type traction roller includes a roller shaft and a roller sleeved on the roller shaft. The inner wall of the roller sleeve is provided with a locking groove. The split-type traction roller replacement device includes a sleeve 1, a top rod 2, an end cap 3, an elastic element 4, and a locking element 5. The locking element 5 is movably disposed at the head of the sleeve 1 along the radial direction of the sleeve 1, and the side wall of the sleeve 1 is provided with an installation groove 11. Part of the locking element 5 can protrude from the outer peripheral wall of the sleeve 1 through the installation groove 11 and engage with the locking groove. The top rod 2 is movably disposed inside the sleeve 1 along the axial direction of the sleeve 1 to abut against the locking element 5, so that the locking element 5 protrudes from the outer peripheral wall of the sleeve 1. The end cap 3 is covered at the tail of the sleeve 1 and is fixedly connected to the sleeve 1. The top of the end cap 3 is provided with a relief groove 31 for avoiding the top rod 2. The elastic element 4 is disposed between the top rod 2 and the end cap 3 so that the top rod 2 has a tendency to abut against the locking element 5. The head of sleeve 1 is the end that is inserted into the roller, and the tail of sleeve 1 is the holding end.

[0035] When it is necessary to replace the split-type traction roller, the operator holds the fixed end cap 3 and pulls the top rod 2 along the axial direction of the sleeve 1. The top rod 2 moves away from the locking member 5 and compresses the elastic member 4. At this time, the locking member 5 is embedded in the sleeve 1. Then, the sleeve 1 is inserted into the roller to a certain depth so that the locking member 5 corresponds to the locking groove. The top rod 2 is then released. Under the action of the restoring force of the elastic member 4, the top rod 2 pushes against the locking member 5, causing the locking member 5 to protrude from the outer peripheral wall of the sleeve 1 and engage with the locking groove. This achieves a stable connection between the split-type traction roller replacement device and the roller. The operator can easily move and transfer the roller through the end cap 3, preventing the roller from falling off or shifting during the replacement process. By adopting the above-mentioned split-type traction roller replacement device, the safety problem during the replacement process of the split-type traction roller is solved, which can effectively avoid the roller from hitting the inner cavity of the furnace and ensure the safe operation of the equipment and the stability of production operations.

[0036] Pulling the top rod 2 retracts the locking element 5 into the roller, facilitating the insertion of the sleeve 1 into the roller. Releasing the top rod 2 allows the locking element 5 to quickly engage with the locking groove, thus easily and quickly establishing a secure connection between the split-type traction roller changing device and the roller. When it is necessary to separate the split-type traction roller changing device from the roller, pulling the top rod 2 again causes the locking element 5 to quickly retract into the sleeve 1 under its own weight or the pressure of the inner wall of the roller, facilitating the extraction of the sleeve 1 from the roller. In summary, by adopting the above-mentioned split-type traction roller changing device, roller changing efficiency can be improved, production line downtime can be shortened, equipment utilization can be increased, and the core requirements of continuity and efficiency for large-scale production of substrate glass and carrier glass can be met.

[0037] In some optional embodiments, the split-type traction roller replacement device includes at least two locking elements 5, which are arranged relatively spaced apart within the sleeve 1. The inner wall of the roller has locking grooves corresponding to each locking element 5. When the top rod 2 abuts against the locking element 5, the at least two relatively arranged locking elements 5 can simultaneously protrude from the outer peripheral wall of the sleeve 1 in opposite directions, thus precisely engaging with the locking grooves on the inner wall of the roller. This symmetrical force transmission structure creates a counterbalancing effect between the two locking elements 5, forming a stable supporting effect on the inner wall of the roller. Compared to the single-point fixing method of a single locking element 5, the reverse supporting structure design can significantly disperse the radial stress generated during the handling and positioning of the roller, avoiding deformation of the locking grooves or failure of the locking elements 5 due to localized stress concentration, thus strengthening the connection reliability between the device and the roller from a structural perspective. Meanwhile, the multi-point fixing effect brought by the bidirectional top support can effectively limit the displacement space of the roller in the circumferential and axial directions. Even if the component is slightly deformed due to the high temperature environment around the furnace body, or if there is slight external force disturbance during operation, the roller can still be fixed stably and firmly, avoiding the risk of roller falling off due to unstable single-point fixing. This further ensures the safety and stability of the split traction roller replacement operation, ensuring that the replacement process is carried out efficiently and orderly, and reducing production interruptions or component damage caused by equipment connection problems.

[0038] like Figure 3As shown, in some optional embodiments, a guide surface 51 is provided on the inner side of the locking member 5 near the top rod 2. The guide surface 51 gradually tilts from the inside out towards the top rod 2, and the shape of the top rod 2 near the locking member 5 is adapted to the guide surface 51. When the top rod 2 moves axially toward the locking member 5 and applies force, the guide surface 51 can accurately bear the axial thrust of the top rod 2, and smoothly convert the axial force into a resisting force that drives the locking member 5 to move radially through its own tilt angle. There is no need to set up an additional complex force conversion mechanism. While simplifying the overall structure of the device, it greatly improves the force conversion efficiency, ensuring that the locking member 5 can quickly and smoothly protrude radially from the outer peripheral wall of the sleeve 1 and accurately dock with the locking groove on the inner wall of the roller. In addition, the shape-adapted guide structure can ensure that the contact between the top rod 2 and the locking part 5 is always surface contact, avoiding local wear caused by point contact or line contact and extending the service life of the parts; even if the parts undergo slight thermal deformation in a high-temperature environment, the adapted guide surface 51 can still maintain a stable force transmission effect, ensuring that the radial movement of the locking part 5 is not affected, further ensuring the reliable operation of the device under harsh working conditions, and providing strong support for the efficient advancement of the split traction roller replacement operation.

[0039] In some optional embodiments, the mounting groove 11 includes a first groove 111 and a second groove 112 that are connected sequentially from the inside to the outside along the radial direction of the sleeve 1. A first stepped surface 113 is provided between the first groove 111 and the second groove 112. The locking member 5 includes a locking part 52 and a limiting part 53 connected together. The limiting part 53 is slidably engaged with the first groove 111, and the locking part 52 is slidably engaged with the second groove 112. The locking part 52 can pass through the second groove 112 and protrude from the outer peripheral wall of the sleeve 1, thereby engaging with the locking groove. The limiting part 53 can be limited and abutted against the first stepped surface 113 to restrict the displacement of the locking member 5 along the radial direction of the sleeve 1 and prevent the locking member 5 from separating from the sleeve 1. While simplifying the structure, it achieves precise positioning and reliable guidance of the locking component 5, making the overall structure more compact and reducing the difficulty of operation and assembly. During operation, locking and releasing can be completed through simple pushing and resetting actions, which significantly improves the practicality and reliability of the device and ensures stable performance during frequent traction roller replacement operations.

[0040] In some optional embodiments, the head of the sleeve 1 is chamfered 12, which guides the connection between the sleeve 1 and the roller, preventing hard collisions or jamming between the head of the sleeve 1 and the edge of the roller opening. This allows the sleeve 1 to be inserted into the roller more smoothly and quickly, significantly reducing the time required for a single insertion operation. Furthermore, it prevents wear and deformation of the sleeve 1 head or the edge of the roller opening due to hard collisions, especially in high-temperature environments where the component material is prone to brittleness. This effectively protects the structural integrity of the sleeve 1 and the roller, extending the component's service life. Simultaneously, the fast and smooth insertion operation further reduces the overall replacement process time, helping the production line return to normal operation more quickly, reducing capacity losses due to downtime, and better meeting the continuous and efficient requirements of substrate glass and carrier glass production.

[0041] like Figure 4 As shown, in some optional embodiments, a limiting block 21 protrudes from the end of the top rod 2 away from the locking member 5, and the elastic member 4 is sandwiched between the limiting block 21 and the inner top wall of the end cap 3. The limiting block 21 protruding on the top rod 2 can provide a stable force application point for the elastic member 4. The elastic member 4 sandwiched between the limiting block 21 and the inner top wall of the end cap 3 can keep the elastic member 4 in a moderately pre-compressed state in its natural state. When the top rod 2 is subjected to external force and moves away from the locking member 5, the elastic member 4 can deform stably in a preset direction and store elastic potential energy. When the external force is removed, the restoring force of the elastic member 4 is directly and evenly transmitted to the top rod 2 through the limiting block 21, pushing the top rod 2 to reset, and then driving the top rod 2 to stably abut against the locking member 5, so that the locking member 5 protrudes from the outer peripheral wall of the sleeve 1 and engages with the locking groove. While simplifying the device structure, the coordination accuracy of the elastic element 4 with the top bar 2 and end cap 3 is improved, ensuring that the device maintains a stable force transmission effect during frequent locking and releasing operations, and further guaranteeing the smoothness and safety of the split traction roller replacement operation.

[0042] In some optional embodiments, the elastic element 4 is sleeved around the top rod 2, and can provide a uniform and stable elastic force to the top rod 2 through the limiting block 21, so that the top rod 2 is subjected to balanced force, avoids local stress concentration, and improves the structural reliability of the split traction roller changing device. In addition, the top rod 2 can guide and limit the compression and reset of the elastic element 4, preventing the elastic element 4 from bending and deforming during compression and reset, which would affect the reset effect, and helps to improve the reliability of the fixed connection between the split traction roller changing device and the roller.

[0043] In this embodiment, the elastic element 4 is a spring, which has a simple structure, is easy to obtain, and has a low cost. Optionally, the elastic element 4 may include, but is not limited to, rubber tubing or air springs, and is not limited here.

[0044] In some optional embodiments, the end cap 3 is threadedly connected to the sleeve 1. The threaded connection method provides a stable and reliable step connection and facilitates assembly and disassembly. When the split-type traction roller replacement device is not in use, the operator can remove the end cap 3 and take out the elastic element 4, leaving it in its natural state, thereby extending its service life. Furthermore, the elastic element 4 can be easily replaced after it reaches the end of its service life.

[0045] In some optional embodiments, the split-type traction roller changing device further includes a handle 6, which is located outside the end cap 3 and detachably connected to the end of the top rod 2 away from the locking member 5. By providing the handle 6 outside the end cap 3 and connecting it to the top rod 2, the operator can easily grasp the handle 6 to pull the top rod 2, which improves the user experience and convenience. The detachable connection between the handle 6 and the top rod 2 facilitates the assembly and disassembly of the split-type traction roller changing device.

[0046] Optionally, the connection between the handle 6 and the top rod 2 can be made by means of threaded connection or snap-fit, which can achieve convenient detachable connection, and is not limited here.

[0047] In some optional embodiments, the sleeve 1 is clearance-fitted with the inner wall of the roller. This avoids assembly jamming or component wear caused by interference fits, and the tight clearance control constrains the relative radial wobble of the two, preventing eccentric forces caused by axial misalignment. When the device is subjected to handling impacts or vibrations during roller replacement, the uniform clearance can disperse contact stress, avoiding scratches on the inner wall of the roller or deformation of the sleeve 1 caused by localized hard contact, providing dual protection for the roller and the split traction roller replacement device. At the same time, this fit reduces excessive reliance on component machining accuracy. Even in high-temperature environments with slight thermal expansion and contraction, the reserved clearance can still accommodate dimensional changes, maintaining a stable fit and ensuring that the axis remains aligned during tool operation. This reduces installation resistance caused by misalignment, making replacement operations smoother and more efficient, extending the service life of the traction roller and tool from a structural perspective, and reducing equipment maintenance costs.

[0048] In some optional embodiments, the outer peripheral wall of the end cap 3 is processed with anti-slip texture, which can improve the friction between the hand and the outer peripheral wall of the end cap 3 when the operator holds the end cap 3, effectively avoid the problem of slipping when holding it, and help to further speed up the replacement operation, reduce safety risks, and provide strong support for the efficient and safe completion of traction roller replacement.

[0049] The following is the assembly process for the split-type traction roller replacement device:

[0050] First, insert the locking element 5 into the top rod 2 and install it into the mounting groove 11; second, insert the top rod 2 from the tail of the sleeve 1 and sleeve the elastic element 4 on the end of the top rod 2 away from the locking element 5; next, thread the end cap 3 to the sleeve 1, so that the elastic element 4 is pre-compressed between the inner top wall of the end cap 3 and the limiting block 21; finally, thread the top rod 2 to the handle 6 through the clearance groove 31.

[0051] The following is the specific procedure for replacing rollers using a split-type traction roller replacement device:

[0052] First, the worker holds the end cap 3 and pulls the handle 6 backward to move the top rod 2 away from the locking part 5, so that the locking part 5 retracts and is embedded in the roller.

[0053] Secondly, while keeping the handle 6 pulled back, insert the sleeve 1 into the roller. When the locking part 5 is opposite to the locking groove, release the handle 6 so that the top rod 2 abuts against the locking part 5, and the locking part 5 engages with the locking groove.

[0054] Next, the transfer rollers;

[0055] Then, when the roller transfer is complete, pull the handle 6 backward to retract the locking part 5, and while keeping the handle 6 pulled backward, pull the sleeve 1 out of the roller.

[0056] Finally, when sleeve 1 is completely detached from the roller, release handle 6.

[0057] Through the above process, the split-type traction roller replacement device can fix the rollers when disassembling the old rollers and installing the new rollers, thereby assisting in the replacement of the rollers, preventing the rollers from shifting during the transfer process, solving the safety problem in the replacement process of split-type traction rollers, avoiding the rollers from hitting the inner cavity of the furnace, ensuring the safety of equipment operation and the stability of production operations; improving the roller replacement efficiency, shortening the production line downtime cycle, and increasing the equipment utilization rate, which can meet the core requirements of continuity and efficiency for the large-scale production of substrate glass and carrier glass.

[0058] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A split-type traction roller replacement device, wherein the split-type traction roller includes a roller shaft and a roller sleeved on the roller shaft, characterized in that, The inner wall of the roller is provided with a locking groove. The split-type traction roller replacement device includes a sleeve (1), a top rod (2), an end cap (3), an elastic element (4), and a locking element (5). The locking element (5) is movably disposed on the head of the sleeve (1) along the radial direction of the sleeve (1), and the side wall of the sleeve (1) is provided with an installation groove (11). Part of the locking element (5) can protrude from the outer peripheral wall of the sleeve (1) through the installation groove (11) and engage with the locking groove. The top rod (2) is disposed on the head of the sleeve (1) along the radial direction of the sleeve (1). The axially movable part is inserted into the sleeve (1) to abut against the locking member (5) so that the locking member (5) protrudes from the outer peripheral wall of the sleeve (1); the end cap (3) is covered at the tail of the sleeve (1) and fixedly connected to the sleeve (1); the top of the end cap (3) is provided with a relief groove (31) for avoiding the top rod (2); the elastic member (4) is disposed between the top rod (2) and the end cap (3) so that the top rod (2) has a tendency to abut against the locking member (5).

2. The split-type traction roller replacement device according to claim 1, characterized in that, The split-type traction roller replacement device includes at least two locking elements (5), which are arranged relatively at intervals in the sleeve (1). The inner wall of the roller is provided with locking grooves that correspond one-to-one with the locking elements (5).

3. The split-type traction roller replacement device according to claim 1, characterized in that, The locking member (5) has a guide surface (51) on the inner side of one end near the top rod (2). The guide surface (51) gradually tilts from the inside out towards the top rod (2). The shape of the top rod (2) near the locking member (5) is adapted to the guide surface (51).

4. The split-type traction roller replacement device according to claim 1, characterized in that, The mounting groove (11) includes a first groove (111) and a second groove (112) that are connected in sequence from the inside to the outside along the radial direction of the sleeve (1), and a first stepped surface (113) is provided between the first groove (111) and the second groove (112); The locking member (5) includes a locking part (52) and a limiting part (53) connected together. The limiting part (53) is slidably engaged with the first groove (111), the locking part (52) is slidably engaged with the second groove (112), and the limiting part (53) can limit and abut against the first stepped surface (113).

5. The split-type traction roller replacement device according to claim 1, characterized in that, The top rod (2) is further provided with a limiting block (21) at one end away from the locking member (5), and the elastic member (4) is sandwiched between the limiting block (21) and the inner top wall of the end cap (3).

6. The split-type traction roller replacement device according to claim 1, characterized in that, The end cap (3) is threadedly connected to the sleeve (1).

7. The split-type traction roller replacement device according to claim 1, characterized in that, The split-type traction roller replacement device also includes a handle (6), which is located outside the end cap (3) and is detachably connected to the end of the top rod (2) away from the locking member (5).

8. The split-type traction roller replacement device according to claim 1, characterized in that, The sleeve (1) is fitted with the inner wall of the roller with a clearance.

9. The split-type traction roller replacement device according to claim 1, characterized in that, The head of the sleeve (1) is chamfered (12).

10. The split-type traction roller replacement device according to any one of claims 1-9, characterized in that, The outer peripheral wall of the end cap (3) is processed with anti-slip texture.

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