Shaft sleeve dismounting auxiliary assembly and shaft sleeve dismounting device

Abstract

The utility model relates to a shaft sleeve dismounting auxiliary assembly and a shaft sleeve dismounting device. The shaft sleeve dismounting auxiliary assembly comprises a tensioning sleeve and a drawing piece. The tensioning sleeve comprises a tensioning sleeve body, a first guide part and an insertion part. The expansion sleeve body is matched with the shaft sleeve in a limiting and inserting mode, and the inserting part is arranged on the expansion sleeve body and penetrates through the first end and the second end in a communicating mode. The first guide part is arranged on the outer side wall of the expansion sleeve body and connected with the second end. In the direction from the first end to the second end, the first guide part is gradually folded; the drawing piece is used for being matched with the inserting part in an inserting mode and matched with the first guiding part in a guiding mode. The drawing piece is matched with the first guide part in a jacking mode, so that at least part of the first guide part can be jacked out and tensioned in the radial direction of the shaft sleeve, and the tensioning sleeve is matched with the shaft sleeve in a tensioning mode. According to the shaft sleeve dismounting auxiliary assembly, the mounting difficulty of the shaft sleeve can be reduced, and a good tensioning effect can be achieved. Meanwhile, the recycling rate of the shaft sleeve can be increased.

Description

Technical Field

[0001] The present application relates to the technical field of shaft sleeve disassembly, and in particular to a shaft sleeve disassembly auxiliary component and a shaft sleeve disassembly device. Background Art

[0002] In some parts assembly scenarios, sleeves are often used as connectors to achieve a transition fit. Generally, sleeves, such as eccentric sleeves and other circular sleeves, are usually installed using an interference fit.

[0003] In the prior art, the removal of an interference-fit sleeve primarily involves clamping the two jaws of a pair of opposing clamps against the inner sidewall of the sleeve and then pulling the sleeve out of the hole. However, this method of removal has a small engagement area, resulting in poor securing effectiveness. Furthermore, the clamps can easily scratch the inner sidewall of the sleeve, hindering sleeve recovery. Utility Model Content

[0004] Based on this, it is necessary to provide a shaft sleeve disassembly auxiliary component and a shaft sleeve disassembly device to address the problems that the shaft sleeve has poor disassembly and fixing effect, is easily scratched and difficult to recycle.

[0005] A shaft sleeve disassembly auxiliary component, comprising:

[0006] The expansion sleeve comprises an expansion sleeve body, a first guide portion and an inserting portion; the expansion sleeve body is inserted and matched with the shaft sleeve in a limited manner, the expansion sleeve body is provided with a first end and a second end spaced relatively apart in the axial direction of the shaft sleeve, the inserting portion is provided on the expansion sleeve body and is connected to the first end and the second end; the first guide portion is provided on the outer side wall of the expansion sleeve body and connected to the second end, the expansion sleeve body is inserted and matched with the shaft sleeve guide through the first guide portion; the first guide portion is gradually retracted in the direction from the first end to the second end;

[0007] A pull-out piece is used to engage with the plug-in portion and to guide with the first guide portion; wherein the pull-out piece is lifted and engaged with the first guide portion so that at least a portion of the first guide portion can be pushed out and tightened in the radial direction of the sleeve, so that the tightening sleeve and the sleeve are tightened.

[0008] In one embodiment, the expansion sleeve body includes at least two tensioning blocks; the tensioning block is provided with the first end and the second end; the first guide portion is arranged one-to-one on the inner side wall of the tensioning block; the tensioning sleeve also includes a mounting body; one end of the mounting body is connected to the first end, and the mounting body is provided with a first socket connected to the plug-in portion, and the first socket is plugged into and matched with the pull-out piece; at least two of the tensioning blocks are arranged at intervals on the mounting body, and the inner side walls of at least two of the tensioning blocks are surrounded to form the plug-in portion.

[0009] In one embodiment, the tension sleeve further includes a protruding body; the protruding body is protruding from the outer side wall of the mounting body along the radial direction, and the protruding body is used to abut and limit with the upper side wall of the sleeve, so that the tension sleeve can abut and limit with the sleeve in the axial direction;

[0010] And / or, the hole wall of the first insertion hole is provided with an internal thread structure, and the outer side wall of the pull-out member is provided with an external thread structure; the internal thread structure is used to threadably cooperate with the external thread structure, so that the pull-out member and the tensioning sleeve are threadably cooperated.

[0011] In one embodiment, the tensioning block is provided with a first tensioning portion and a second tensioning portion along the axial direction; one end of the first tensioning portion is connected to the first end, and the other end is connected to one end of the second tensioning portion; the other end of the second tensioning portion is connected to the second end; the first guide portion is arranged on the inner side wall of the second tensioning portion; the curved surface of the inner side wall of the first tensioning portion is parallel to the axial direction; wherein, the pull-out member is tensionedly fitted with the second tensioning portion so that the second tensioning portion can be pushed out and tensioned along the radial direction.

[0012] And / or, at least two of the tightening blocks are evenly distributed axially around the expansion sleeve body.

[0013] In one embodiment, the pull-out member is provided with an ejection portion and a second guide portion; one end of the ejection portion is connected to one end of the second guide portion, and the ejection portion is used to eject and cooperate with the first tensioning portion; along the direction from the first end to the second end, the second guide portion is gradually retracted; the pull-out member is inserted into the expansion sleeve body through the second guide portion, and the second guide portion is used to abut and guide with the first guide portion; the ejection portion is ejected and tensioned with the second tensioning portion.

[0014] In one embodiment, the curved surface of the outer side wall of the ejection portion is arranged parallel to the axial direction;

[0015] And / or, the pull-out piece includes a pull rod body and a connecting body; the pull rod body is provided with the ejection part and the second guide part; the connecting body is connected to one end of the ejection part and is spaced apart from the second guide part; the connecting body is provided with a screw hole; the screw hole is used to be screwed and fixed with a disassembly tool so that the pull-out piece can be disassembled by the disassembly tool.

[0016] In one embodiment, the connecting body is further provided with a first surface and a second surface symmetrically spaced apart along the radial direction; the first surface and the second surface are used for clamping and cooperating with a disassembly tool so that the drawer can be disassembled by the disassembly tool.

[0017] In one embodiment, the curved surface of the outer side wall of the tension block is parallel to the axial direction.

[0018] In one embodiment, a protrusion is provided at one end of the tensioning block close to the second end; the protrusion is provided on the outer wall of the tensioning block; the protrusion is used to be plugged into and fitted with the recess of the sleeve, so that the protrusion can abut against the side wall of the recess to limit the position.

[0019] A sleeve disassembly device includes a disassembly tool and the sleeve disassembly auxiliary component in the above embodiment, wherein the disassembly tool is used to assist in pulling out a pull-out member so that the pull-out member drives the tension sleeve and the sleeve to be disassembled along the axial direction of the sleeve under the action of tension.

[0020] The aforementioned sleeve removal assist assembly and sleeve removal device, through the guiding function of the first guide portion, can advantageously provide guidance when inserting the pull-out member into the tension sleeve, thereby reducing the difficulty of installing the sleeve removal assist assembly and the sleeve and improving installation efficiency. Furthermore, when the pull-out member and the tension sleeve are plugged into each other, a surface-to-surface clamping fit is achieved between the sidewall of the first guide portion and the sidewall of the sleeve, preventing excessive scratching of the inner sidewall of the sleeve and facilitating sleeve recovery.

[0021] In addition, by using the pull-out piece as the force-bearing piece and transition piece of the disassembly tool, direct force is avoided on the tension sleeve, direct damage to the tension sleeve and the shaft sleeve is avoided, and the reuse efficiency of the shaft sleeve disassembly auxiliary component is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a disassembled view of the shaft sleeve disassembly auxiliary component and the shaft sleeve installation structure in one embodiment.

[0023] Figure 2 for Figure 1 A cross-sectional view of the shaft sleeve removal auxiliary component and the installation structure of the shaft sleeve is shown in FIG.

[0024] Figure 3 It is a cross-sectional view of the structure of a tension sleeve in one embodiment.

[0025] Figure 4 Schematic diagram of the connection structure between the tensioning block and the mounting body in one embodiment.

[0026] Figure 5 2 is a cross-sectional view of the structure of a drawer in one embodiment.

[0027] Figure 6 Schematic diagram of the installation structure of the connecting body and the draw rod body shown in one embodiment.

[0028] Figure 7for Figure 2 Schematic diagram of the enlarged structure of A shown in .

[0029] Description of reference numerals:

[0030] 10. Auxiliary assembly for disassembling the sleeve; 100. Tensioning sleeve; 100a. First guide portion; 100b. Connecting portion; 100c. Protrusion; 110. Expansion sleeve body; 110a. First end; 110b. Second end; 111. Tensioning block; 1111. First tensioning portion; 1112. Second tensioning portion; 120. Mounting body; 121. First plug hole; 200. Pull-out member; 210. Pull rod body; 211. Ejection portion; 212. Second guide portion; 220. Connecting body; 221. Screw hole; 222. First surface; 223. Second surface; 20. Sleeve; 201. Recess; X, axial direction. DETAILED DESCRIPTION

[0031] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0032] The present application provides a shaft sleeve disassembly device, including a disassembly tool and a shaft sleeve disassembly auxiliary component 10.

[0033] See Figures 1 to 2 A sleeve disassembly auxiliary assembly 10 provided in one embodiment of the present application includes a tension sleeve 100 and a pull-out member 200 .

[0034] Specifically, the expansion sleeve 100 includes an expansion sleeve body 110, a first guide portion 100a, and a plug-in portion 100b. The expansion sleeve body 110 is provided with a first end 110a and a second end 110b relatively spaced apart along the axial direction X of the sleeve 20. The plug-in portion 100b is provided on the expansion sleeve body 110 and is connected to the first end 110a and the second end 110b. The first guide portion 100a is provided on the inner side wall of the expansion sleeve body 110 and is connected to the second end 110b. The first guide portion 100a is gradually retracted in the direction from the first end 110a to the second end 110b. That is, when the expansion sleeve body 110 and the sleeve 20 are limitedly plugged in, the expansion sleeve body 110 can be guided and plugged into the sleeve 20 through the first guide portion 100a.

[0035] The pull-out member 200 is configured to engage with the plug-in portion 100b and to engage with the expansion sleeve body 110. When the pull-out member 200 is engaged with the plug-in portion 100b, the smaller size of the first guide portion 100a allows the pull-out member 200 to lift the first guide portion 100a, thereby tightening it in a direction away from the axial direction X (i.e., in a radial direction of the sleeve 20), thereby tightening the outer wall of the expansion sleeve 100 against the inner wall of the sleeve 20. The expansion sleeve body 110 can be a cylindrical expansion sleeve 100, and the plug-in portion 100b can be an open or semi-enclosed insertion hole, etc., to form a plug-in space.

[0036] For ease of understanding, the following describes the disassembly and cooperation between the shaft sleeve disassembly auxiliary component 10 and the shaft sleeve 20 in conjunction with an installation scenario.

[0037] When the expansion sleeve body 110 is inserted into the cavity of the shaft sleeve 20 , the first guide portion 100 a can provide a good receiving and guiding function for one end of the drawer 200 , thereby improving the movement stability of the drawer 200 .

[0038] By inserting the pull-out member 200 into the plug-in portion 100b, the plug-in portion 100b at the location of the first guide portion 100a is expanded and tightened. At this point, the expansion sleeve body 110 is radially lifted and tightened, pushing at least a portion of the first guide portion 100a radially outward and tightening. This ensures that at least a portion of the first guide portion 100a is no longer smaller than the cavity size of the sleeve 20, effectively tightening and supporting the inner wall of the sleeve 20. Furthermore, along the radial direction of the sleeve 20, an interference fit is formed between the pull-out member 200, the expansion sleeve 100, and the sleeve 20, from the inside out.

[0039] Finally, the pull-out member 200 can cooperate with the disassembly tool to provide a pulling force for the pull-out member 200 , and finally the tensioning sleeve 100 and the shaft sleeve 20 can be pulled out together through the pull-out member 200 to complete the disassembly of the shaft sleeve 20 .

[0040] In this way, the guiding effect of the first guide portion 100a can be used to provide guidance when the pull-out member 200 is inserted into the tension sleeve 100, thereby reducing the difficulty of installing the sleeve removal auxiliary assembly 10 and the sleeve 20 and improving installation efficiency. Furthermore, the limited insertion and cooperation between the pull-out member 200 and the tension sleeve 100 enables the outer wall of the tension sleeve 100 to abut against the inner wall of the sleeve 20. The tensioning effect of the first guide portion 100a on the sleeve 20 achieves a surface-to-surface tensioning and clamping fit between the first guide portion 100a and the sleeve 20, which does not cause excessive scratches on the inner wall of the sleeve 20 and facilitates the recovery of the sleeve 20.

[0041] In addition, by using the pull-out piece 200 as the force-bearing piece and transition piece of the disassembly tool, direct force is avoided on the tension sleeve 100, and direct damage to the tension sleeve 100 and the sleeve 20 is avoided, thereby improving the reuse efficiency of the sleeve disassembly auxiliary component 10 and the sleeve 20.

[0042] In some embodiments, combined Figures 3 to 4 As shown, the expansion sleeve body 110 includes at least two tensioning blocks 111. A first guide portion 100a is disposed on the inner sidewall of the tensioning block 111. The expansion sleeve 100 also includes a mounting body 120. One end of the mounting body 120 is connected to the first end 110a. The mounting body 120 is provided with a first jack 121 that communicates with the plug-in portion 100b. The drawer 200 is inserted through the first jack 121 and the plug-in portion 100b, allowing the drawer 200 to be inserted into the expansion sleeve 100.

[0043] At least two tensioning blocks 111 are spaced apart from each other on the mounting body 120, and the inner sidewalls of at least two tensioning blocks 111 enclose the plug-in portion 100b. Thus, the first guide portion 100a is positioned on the inner sidewall of the tensioning block 111, facilitating its effective guidance when the drawer 200 is inserted. Furthermore, the spacing of the tensioning blocks 111 ensures that when the drawer 200 is inserted into the plug-in portion 100b through interference fit, adjacent tensioning blocks 111 move without generating traction on each other, thereby increasing the tensioning range of the tensioning blocks 111 and optimizing the tensioning and holding effect of the tensioning blocks 111 against the inner sidewall of the sleeve 20.

[0044] It should be noted that the at least two tensioning blocks 111 may be installed evenly or unevenly.

[0045] In one embodiment, at least two tensioning blocks 111 are evenly distributed axially around the expansion sleeve body 110. This even distribution of the at least two tensioning blocks 111 in the axial direction facilitates uniform distribution of the tensioning force exerted by the tensioning blocks 111 on the sleeve 20, thereby improving the stability of the movement of the drawer 200 relative to the sleeve 20.

[0046] Specifically, in one embodiment, at least two tensioning blocks 111 are radially symmetrically arranged (i.e., a set of tensioning blocks 111 are symmetrically arranged on the same diameter). Thus, the symmetrically arranged tensioning blocks 111 encircle the insertion portion 100b, achieving symmetrical tensioning of the inner sidewall of the sleeve 20, thereby improving the stability of the pull-out member 200 when removing the sleeve 20.

[0047] In another specific embodiment, the tension sleeve 100 includes at least three tensioning blocks 111. The tensioning blocks 111 are arranged around the mounting body 120, with the spacing between any two adjacent tensioning blocks 111 being equal. This arrangement of at least three tensioning blocks 111 facilitates the formation of a tensioning clamping surface, enhancing the clamping effect on the inner wall of the sleeve 20. Furthermore, the equal spacing between any two adjacent tensioning blocks 111 helps maintain a stable center of gravity when the tension sleeve 100 is tightening the sleeve 20, thereby improving the stability of the pull-out member 200 when removing the sleeve 20.

[0048] It should be noted that the expansion sleeve body 110 in the above embodiment can be partially arranged to be inclined and gathered close to the axial direction X to form the first guide portion 100a, or the entire expansion sleeve body 110 can be arranged to be gathered along the axial direction X to form the first guide portion 100a (that is, the expansion sleeve body 110 is arranged in an inverted cone).

[0049] In some embodiments, see Figure 3 and Figure 4 , the first guide portion 100a is partially provided on the expansion sleeve body 110, so that the expansion sleeve body 110 is partially arranged at an angle. Specifically, the tensioning block 111 is provided with a first tensioning portion 1111 and a second tensioning portion 1112 along the axial direction X. The insertion portion passes through the first tensioning portion 1111 and the second tensioning portion 1112. One end of the first tensioning portion 1111 is connected to the first end 110a, and the other end is connected to one end of the second tensioning portion 1112. The other end of the second tensioning portion 1112 is connected to the second end 110b, and the first guide portion 100a is provided on the inner side wall of the second tensioning portion 1112.

[0050] The curved surface of the inner sidewall of the first tensioning portion 1111 is parallel to the axial direction X. That is, the arrangement direction of the first tensioning portion 1111 is parallel to the axial direction X, while the arrangement direction of the second tensioning portion 1112 gradually converges along the axial direction X, so that the radial dimension of at least part of the second tensioning portion 1112 is smaller than the radial dimension of the first tensioning portion 1111.

[0051] It can be understood that when the pull-out piece 200 is inserted into the plug-in portion 100b, the second tensioning portion 1112 can be guided to enable the tensioning sleeve 100 to be smoothly aligned with the sleeve 20, and the pull-out piece 200 can be tensioned with the first tensioning portion 1111 and the second tensioning portion 1112, so that the pull-out piece 200 is interference-fitted with the first tensioning portion 1111, and the first tensioning portion 1111 is pushed out and tightened, so that it is tightened and fixed to the inner wall of the sleeve 20; and the pull-out piece 200 is stretched to lift up the second tensioning portion 1112, so that it can be lifted and tightened in the radial direction, and then at least the outer wall of the second tensioning portion 1112 is tensioned and fitted with the inner wall of the sleeve 20.

[0052] In this way, unlike the overall inclined design of the tension block 111 (i.e., an inner conical surface), the first guide portion 100a is provided only on the expansion sleeve body, which reduces processing difficulty and improves processing efficiency. Furthermore, the overall inclined design increases dimensional restrictions, which is not conducive to quick insertion. Accordingly, the second tensioning portion 1112 is provided with the first guide portion 100a, which reduces the insertion length of the pull-out member 200. This avoids the radial insertion dimension restrictions imposed by the first tensioning portion 1111, reduces the insertion resistance of the pull-out member 200 when inserting the insertion portion 100b in the area of ​​the first tensioning portion 1111, and improves the efficiency of disassembly of the sleeve 20.

[0053] It should be noted that the cooperation between the pull-out member 200 and the first tensioning part 1111 can be, but is not limited to, a certain assembly gap between the side wall of the pull-out member 200 and the inner wall of the first tensioning part 1111, so as to achieve gap-type plug-in; it can also be a limited plug-in between the pull-out member 200 and the first tensioning part 1111, etc., and no excessive restrictions are imposed here.

[0054] In conjunction with any of the above embodiments of the tension sleeve 100, refer to Figure 3 As shown, the curved surface of the outer side wall of the tensioning block 111 is parallel to the axial direction X.

[0055] In this way, the curved surface of the outer wall of the tensioning block 111 is arranged parallel to the axial direction X, so that the outer wall of the expansion sleeve body 110 can fit tightly with the inner wall of the sleeve 20, and the inner wall of the expansion sleeve body 110 can fit tightly with the pull-out member 200, so that the second tensioning part 1112 can be prevented from protruding from the side wall of the first tensioning part 1111 when tightened, and thus the second tensioning part 1112 can be prevented from scratching the inner wall of the sleeve 20, and the tensioning sleeve 100 and the inner wall of the sleeve 20 are always kept in fit and tightened.

[0056] In combination with any embodiment of the above-mentioned drawer 200, Figures 5 to 6 As shown, the pull-out member 200 includes a pull rod body 210. The pull rod body 210 is provided with an ejection portion 211 and a second guide portion 212. One end of the ejection portion 211 is connected to one end of the second guide portion 212, and the ejection portion 211 is used to eject and cooperate with the first tensioning portion 1111. Along the direction from the first end 110a to the second end 110b, the second guide portion 212 is gradually retracted. The pull-out member 200 is inserted into the expansion sleeve body 110 through the second guide portion 212, and the second guide portion 212 is used to abut and guide with the first guide portion 100a. The ejection portion 211 is used for ejection and tensioning cooperation of the second tensioning portion 1112. Among them, the ejection portion 211 can be ejected and tensioned with the first tensioning portion 1111, or it can be set at intervals, limited and matched, etc., and no excessive restrictions are made here.

[0057] It is understood that when the drawer 200 is first installed on the tension sleeve 100, the second guide portion 212 can be inserted into the plug-in portion 100b first. At this time, due to the inclined design of the second guide portion 212, the second guide portion 212 is smaller in size, allowing for smooth alignment with the plug-in portion 100b, thereby improving the installation and alignment efficiency of the drawer 200 and the tension sleeve 100. When the drawer 200 is fully inserted into the plug-in portion 100b, the ejector portion 211 has an interference fit with the first tensioning portion 1111 and the second tensioning portion 1112, and the ejector portion 211 is partially inserted into the position of the second tensioning portion 1112, so that at least the second tensioning portion 1112 is radially outwardly tensioned, causing the second tensioning portion 1112 to drive the outer wall of the sleeve 20 body to tighten with the inner wall of the sleeve 20.

[0058] Thus, when the second guide portion 212 moves to a position where it can engage with the first guide portion 100a, the first guide portion 100a can provide a certain degree of support and guidance for the second guide portion 212 in the axial direction X, and can form a surface-to-surface support and guidance, thereby improving the insertion stability of the drawer 200 in the plug-in portion 100b. At the same time, it can ensure that the second tensioning portion 1112 can engage with the shaft sleeve 20.

[0059] It should be noted that the outer side wall of the ejection portion 211 can be a straight cylindrical surface or a conical surface, and no further restrictions are imposed here.

[0060] In one example, the ejection portion 211 is provided with an inclined surface structure. The inclined surface structure has a third end and a fourth end opposite each other along the axial direction X. The fourth end is connected to one end of the second guide portion 212. The fourth end and the third end are gradually converged along the axial direction X. The fourth end is used for ejection engagement with the first guide portion 100a.

[0061] In this way, the inclined surface structure can be set so that the ejection part 211 can at least partially form an outer cone surface, so that the plug-in part 100b can be fully expanded through the outer cone surface, so that the first tightening part 1111 and the second tightening part 1112 are fully expanded and tightened, thereby achieving full tightening of the expansion sleeve body 110 and the shaft sleeve 20, improving the fixing effect between the pull-out part 200, the expansion sleeve body 110 and the shaft sleeve 20, and then facilitating integrated disassembly.

[0062] In another example, see you later Figure 5, the outer side wall of the ejection portion 211 is arranged parallel to the axial direction X. That is, unlike the ejection portion 211 which is arranged in an outward tapered shape, the outer side wall of the ejection portion 211 and the side wall of the first tensioning portion 1111 are both arranged parallel to the axial direction X (i.e., the outer side wall of the ejection portion 211 is designed in a straight cylindrical shape), which reduces the difficulty of inserting the drawer 200 into the first tensioning portion 1111 and avoids the first tensioning portion 1111 being too small to form a positional obstruction to the drawer 200. In turn, the insertion force of the ejection portion 211 into the first tensioning portion 1111 can be reduced, thereby reducing the insertion difficulty.

[0063] In some embodiments, such as Figure 7 As shown, the tension block 111 has a protrusion 100c on one end, located near the second end 110b. Protrusion 100c is located on the outer sidewall of tension block 111. A recess 201 is provided on the inner wall of sleeve 20. Recess 201 can be located on the inner bottom wall of sleeve 20. Protrusion 100c is designed to engage with recess 201 of sleeve 20, allowing protrusion 100c to abut against the sidewall of recess 201 for a fixed position.

[0064] It can be understood that when the tensioning sleeve 100 is sleeved on the shaft sleeve 20, the protrusion 100c can cooperate with the recess 201 to limit the position, so that when the pull-out member 200 is disassembled along the axial direction X (such as when it is pulled out in the vertical upward direction), the end face of the protrusion 100c can abut against the side wall of the recess 201, so that the pull-out member 200 drives the shaft sleeve 20 to be lifted upward, thereby improving the disassembly stability of the pull-out member 200 and the shaft sleeve 20.

[0065] In one embodiment, see Figure 2 and Figure 3 The tension sleeve 100 further includes a protruding body. The protruding body projects from the outer sidewall of the mounting body 120 in the radial direction of the sleeve 20. The protruding body engages and engages with the upper sidewall of the sleeve 20, allowing the tension sleeve 100 to engage and engage with the sleeve 20 in the axial direction X. Thus, when the tension sleeve 100 is mounted on the sleeve 20, the protruding body engages and engages with the upper surface of the sleeve 20 to maintain insertion and positioning of the tension sleeve 100, preventing the tension sleeve 100 from causing pressure damage to other components mating with the sleeve 20.

[0066] In other embodiments, Figure 2The wall of the first insertion hole 121 is provided with an internal thread structure, and the outer wall of the drawer 200 is provided with an external thread structure. The internal thread structure is used to threadably engage with the external thread structure, thereby threading the drawer 200 and the tension sleeve 100 together. This threaded engagement between the drawer 200 and the tension sleeve 100 reduces insertion resistance when the drawer 200 is inserted into the tension sleeve 100, thereby improving assembly efficiency. Furthermore, it enhances the securing effect between the drawer 200 and the tension sleeve 100, thereby increasing the stability of the drawer 200 when disassembling the shaft sleeve 20.

[0067] Accordingly, in some embodiments, Figure 5 and Figure 6 The drawer 200 further includes a connecting body 220 . The connecting body 220 is connected to the ejection portion 211 and is spaced apart from the second guide portion 212 .

[0068] In one embodiment, the screw hole 221 is used to be threadedly connected to a disassembly tool, so that the drawer 200 can be disassembled using the disassembly tool. The disassembly tool can be a hammer with a threaded structure, etc. In this way, the threaded connection between the disassembly tool and the screw hole 221 improves the stability of the disassembly tool in disassembling the drawer 200.

[0069] Furthermore, in some other embodiments, the connecting body 220 is further provided with a first surface 222 and a second surface 223 symmetrically spaced along the radial direction. The first surface 222 and the second surface 223 are used to clamp and cooperate with a disassembly tool so that the drawer 200 can be disassembled by the disassembly tool. The disassembly tool may be a clamp, a wrench, etc. In this way, by providing the clamping surface, the connection strength between the disassembly tool and the drawer 200 can be improved, thereby improving the disassembly stability of the drawer 200 by the disassembly tool. In one example, the connecting body 220 is provided with six surfaces (for example, the connecting body 220 is a hexagonal nut or a hexagonal screw), and the projection of the connecting body 220 along the axial direction X is a regular hexagon to provide a stable clamping force.

[0070] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0071] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0072] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0073] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0074] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0075] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A sleeve disassembly auxiliary component, characterized in that: The shaft sleeve disassembly auxiliary component includes: The expansion sleeve comprises an expansion sleeve body, a first guide portion and an inserting portion; the expansion sleeve body is inserted and matched with the shaft sleeve in a limited manner, the expansion sleeve body is provided with a first end and a second end spaced relatively apart in the axial direction of the shaft sleeve, the inserting portion is provided on the expansion sleeve body and is connected to the first end and the second end; the first guide portion is provided on the inner side wall of the expansion sleeve body and connected to the second end, the expansion sleeve body is inserted and matched with the shaft sleeve guide through the first guide portion; the first guide portion is gradually retracted in the direction from the first end to the second end; A pull-out piece is used to engage with the plug-in portion and to guide with the first guide portion; wherein the pull-out piece is lifted and engaged with the first guide portion so that at least a portion of the first guide portion can be pushed out and tightened in the radial direction of the sleeve, so that the tightening sleeve and the sleeve are tightened.

2. The sleeve disassembly auxiliary assembly according to claim 1, characterized in that: The expansion sleeve body includes at least two tensioning blocks; the tensioning block is provided with the first end and the second end; the first guide portion is arranged on the inner side wall of the tensioning block in a one-to-one correspondence; the tension sleeve also includes a mounting body; one end of the mounting body is connected to the first end, and the mounting body is provided with a first socket connected to the plug-in portion, and the first socket is plugged into and matched with the pull-out piece; at least two of the tensioning blocks are arranged at intervals on the mounting body, and the inner side walls of at least two of the tensioning blocks are surrounded to form the plug-in portion.

3. The sleeve disassembly auxiliary assembly according to claim 2, characterized in that: The tension sleeve further includes a protruding body, which is protruding from the outer side wall of the mounting body along the radial direction and is configured to abut and limit against the upper side wall of the sleeve, so that the tension sleeve can abut and limit against the sleeve in the axial direction. And / or, the hole wall of the first insertion hole is provided with an internal thread structure, and the outer side wall of the pull-out member is provided with an external thread structure; the internal thread structure is used to threadably cooperate with the external thread structure, so that the pull-out member and the tensioning sleeve are threadably cooperated.

4. The sleeve disassembly auxiliary assembly according to claim 2, characterized in that: The tensioning block is provided with a first tensioning portion and a second tensioning portion along the axial direction; one end of the first tensioning portion is connected to the first end, and the other end is connected to one end of the second tensioning portion; the other end of the second tensioning portion is connected to the second end; the first guide portion is provided on the inner side wall of the second tensioning portion; the curved surface of the inner side wall of the first tensioning portion is parallel to the axial direction; wherein the pull-out member is tensionedly matched with the second tensioning portion so that the second tensioning portion can be pushed out and tensioned in the radial direction; And / or, at least two of the tightening blocks are evenly distributed axially around the expansion sleeve body.

5. The sleeve disassembly auxiliary assembly according to claim 4, characterized in that: The pull-out part is provided with an ejection portion and a second guide portion; one end of the ejection portion is connected to one end of the second guide portion, and the ejection portion is used to eject and cooperate with the first tensioning portion; along the direction from the first end to the second end, the second guide portion is gradually retracted; the second guide portion is used to abut and guide with the first guide portion; the ejection portion is ejected and tensionedly cooperated with the second tensioning portion.

6. The shaft sleeve disassembly auxiliary assembly according to claim 5, characterized in that: The curved surface of the outer side wall of the ejection portion is arranged parallel to the axial direction; And / or, the pull-out piece includes a pull rod body and a connecting body; the pull rod body is provided with the ejection part and the second guide part; the connecting body is connected to one end of the ejection part and is spaced apart from the second guide part; the connecting body is provided with a screw hole; the screw hole is used to be screwed and fixed with a disassembly tool so that the pull-out piece can be disassembled by the disassembly tool.

7. The sleeve disassembly auxiliary assembly according to claim 6, characterized in that: The connecting body is further provided with a first surface and a second surface symmetrically spaced apart along the radial direction; the first surface and the second surface are used for clamping and cooperating with a disassembly tool so that the drawer can be disassembled by the disassembly tool.

8. The shaft sleeve removal auxiliary assembly according to any one of claims 2 to 7, characterized in that: The curved surface of the outer side wall of the tension block is parallel to the axial direction.

9. The shaft sleeve removal auxiliary assembly according to claim 8, characterized in that: The tension block has a protrusion at one end close to the second end; the protrusion is arranged on the outer wall of the tension block; the protrusion is used to be plugged into and matched with the recess of the sleeve, so that the protrusion can abut against the side wall of the recess to limit its position.

10. A shaft sleeve removal device, characterized in that: It comprises a disassembly tool and a sleeve disassembly auxiliary assembly as claimed in any one of claims 1 to 9, wherein the disassembly tool is used to assist in pulling out a pull-out member so that the pull-out member is subjected to tension to drive the tension sleeve and the sleeve to be disassembled along the axial direction of the sleeve.

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