A bush dismounting structure

Abstract

The application discloses a bush dismounting structure and belongs to the technical field of automobile assembly. The bush dismounting structure comprises a bearing assembly, a pushing assembly and a bearing cavity. The bearing assembly is provided with the bearing cavity and an exhaust hole communicating with the bearing cavity. The pushing assembly comprises a connecting part, an extruding part and a driving part. The connecting part is used for penetrating the driving part, the extruding part and a bush hole and is connected with the bearing assembly. The driving part is arranged on the side, away from the bearing assembly, of the extruding part. The bearing assembly and the extruding part are arranged on the two sides of a vehicle frame respectively. The driving part is used for driving the extruding part to move along the axial direction of the connecting part so as to push the bush to the bearing cavity. The exhaust hole communicating with the bearing cavity is arranged on the bearing assembly. In the process that the bush enters the bearing space, the air in the bearing cavity is extruded so as to be discharged through the exhaust hole, thereby reducing the resistance of the bush entering the bearing space and facilitating the quick dismounting of the bush.

Description

Technical Field

[0001] This application belongs to the field of automotive assembly technology, and specifically relates to a bushing assembly / disassembly structure. Background Technology

[0002] The use of bushings reduces equipment wear, vibration, and noise, and provides corrosion protection. They also dampen shocks, isolate noise, reduce fatigue, and increase service life, playing a crucial role in the operational stability of vehicles. Bushings are typically removed from the frame by pushing them out of their bores using a pressure device, but this process is quite difficult. Utility Model Content

[0003] Purpose of the utility model: The embodiments of this application provide a bushing disassembly and assembly structure, which aims to overcome the technical problem that it is difficult to push the bushing out of the bushing hole.

[0004] Technical solution: The bushing assembly / disassembly structure described in this application includes:

[0005] A support assembly having a receiving cavity and an exhaust port communicating with the receiving cavity;

[0006] A pushing component includes a connecting part, a squeezing part, and a driving part. The connecting part is used to pass through the driving part, the squeezing part, and the bushing hole, and is connected to the bearing component. The driving part is located on the side of the squeezing part opposite to the bearing component.

[0007] The bearing assembly and the extrusion part are respectively disposed on both sides of the frame, and the driving part is used to drive the extrusion part to move axially along the connecting part to push the bushing toward the receiving cavity.

[0008] In some embodiments, the carrier component includes:

[0009] A receiving portion is disposed on one side of the extrusion portion along the axial direction of the connecting portion. The receiving portion has the receiving cavity and an opening communicating with the receiving cavity. The opening is disposed on the side of the receiving portion opposite to the extrusion portion.

[0010] A support portion is connected to the side of the receiving portion opposite to the extrusion portion and covers the opening; the connecting portion passes through the receiving cavity and the support portion.

[0011] In some embodiments, the carrier component further includes:

[0012] A fixing part is connected to the side of the support part away from the receiving part, and a connecting part passes through the fixing part and is connected to the fixing part.

[0013] In some embodiments, the receiving portion has the vent hole, the vent hole communicating with the opening; the supporting assembly further includes:

[0014] A positioning part is connected to the side of the support part facing the extrusion part. The positioning part passes through the exhaust hole and is spaced apart from the top wall of the exhaust hole.

[0015] In some embodiments, there are multiple exhaust holes, which are arranged at circumferential intervals along the receiving portion, and there are multiple positioning portions, each of which passes through one of the exhaust holes.

[0016] In some embodiments, there are multiple exhaust holes, with at least two exhaust holes arranged radially spaced along the connecting portion. There are multiple positioning portions, which are arranged intersectingly and extend radially along the connecting portion. Each positioning portion passes through two exhaust holes.

[0017] In some embodiments, the orthogonal projection of the extrusion portion onto the axial direction of the connection portion is located within the receiving cavity.

[0018] In some embodiments, the extrusion portion includes:

[0019] A sliding plate, wherein the connecting part passes through the sliding plate, and the sliding plate and the connecting part are slidably connected;

[0020] A thrust ring, connected to the side of the sliding plate facing the bearing assembly, is used to push the bushing.

[0021] In some embodiments, the drive unit includes:

[0022] A rotating segment, wherein the connecting part passes through the rotating segment and is threadedly connected to the rotating segment, and the extending direction of the rotating segment is the same as the extending direction of the connecting part;

[0023] The gripping segment is at least partially connected to the rotating segment, and the extending direction of the gripping segment intersects the extending direction of the rotating segment.

[0024] In some embodiments, the extrusion portion has a connecting groove on the side opposite to the support component, the connecting portion passes through the connecting groove, and the bottom end of the rotating segment is embedded in the connecting groove.

[0025] Beneficial Effects: The bushing disassembly and assembly structure of this application embodiment includes: a support assembly having a receiving cavity and an exhaust port communicating with the receiving cavity; a pushing assembly including a connecting part, a squeezing part, and a driving part, wherein the connecting part is used to pass through the driving part, the squeezing part, and the bushing hole, and is connected to the support assembly, and the driving part is disposed on the side of the squeezing part away from the support assembly; wherein the support assembly and the squeezing part are respectively disposed on both sides of the frame, and the driving part is used to drive the squeezing part to move axially along the connecting part to push the bushing towards the receiving cavity. By providing an exhaust port communicating with the receiving cavity on the support assembly, the air inside the receiving cavity is squeezed during the process of the bushing entering the support space, so that the air is discharged through the exhaust port, thereby reducing the resistance of the bushing entering the support space and facilitating the quick disassembly of the bushing. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a perspective view of the bushing assembly / disassembly structure and its connection to the vehicle frame, according to an embodiment of this application.

[0028] Figure 2 This is a cross-sectional view of the bushing assembly / disassembly structure and its connection to the vehicle frame, as described in an embodiment of this application.

[0029] Figure 3 This is a perspective view of the bushing assembly / disassembly structure according to an embodiment of this application;

[0030] Figure 4 This is a front sectional view of the bushing assembly / disassembly structure according to an embodiment of this application, wherein the positioning part is connected to the support part;

[0031] Figure 5 This is a front sectional view of the bushing assembly / disassembly structure according to an embodiment of this application, wherein the positioning part is not connected to the support part;

[0032] Figure 6 This is a perspective view of the receiving portion in an embodiment of this application;

[0033] Figure 7 This is a schematic diagram of the connection between a positioning part and a support part according to one embodiment of this application;

[0034] Figure 8 This is a schematic diagram of the connection between the positioning part and the support part in another embodiment of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 10-Bearing component; 11-Receiving cavity; 12-Exhaust port; 121-Top wall; 13-Receiving part; 131-Opening; 14-Supporting part; 15-Fixing part; 16-Positioning part; 20-Pushing component; 21-Connecting part; 22-Extrusion part; 221-Sliding plate; 222-Thrust ring; 223-Connecting groove; 23-Drive part; 231-Rotating section; 232-Holding section; 30-Frame; 31-Bushing hole; 32-Bushing. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0038] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, and "at least one" can mean one, two, or more, unless otherwise explicitly specified.

[0039] The use of bushings reduces equipment wear, vibration, and noise, provides corrosion protection, and also dampens shocks, isolates noise, reduces fatigue, and increases service life, playing a crucial role in the operational stability of vehicles. When removing bushings from the frame, they are typically pushed out of the bushing hole using a pressure device. Alternatively, a pressure plate can be used to push the bushing from the bushing hole into a receiving structure, which is usually cup-shaped. If the outer wall of the bushing happens to fit perfectly against the inner wall of the receiving structure during this process, air inside the receiving structure cannot escape, preventing the bushing from entering the interior. This makes it more difficult to push the bushing out of the bushing hole, hindering bushing removal.

[0040] In view of this, embodiments of this application provide a bushing assembly / disassembly structure to overcome at least one of the above-mentioned technical problems.

[0041] Please see Figure 1 and Figure 2 In this embodiment of the application, the bushing assembly / disassembly structure includes a support component 10 and a push component 20.

[0042] The support assembly 10 has a receiving cavity 11 and an exhaust port 12 communicating with the receiving cavity 11. The pushing assembly 20 includes a connecting portion 21, a pressing portion 22, and a driving portion 23. The connecting portion 21 is used to pass through the driving portion 23, the pressing portion 22, and the bushing hole 31, and is connected to the support assembly 10. The driving portion 23 is disposed on the side of the pressing portion 22 opposite to the support assembly 10. The support assembly 10 and the pressing portion 22 are respectively disposed on both sides of the frame 30. The driving portion 23 is used to drive the pressing portion 22 to move axially along the connecting portion 21 to push the bushing 32 toward the receiving cavity 11.

[0043] Understandably, when removing the bushing on the frame 30, the support component 10 on the bushing removal and installation structure can be positioned on one side of the frame 30. The support component 10 can contact the frame 30, and the receiving cavity 11 on the support component 10 communicates with the bushing hole 31 on the frame 30. The receiving cavity 11 can be a columnar structure with an inner diameter greater than or equal to the outer diameter of the bushing 32, allowing the bushing 32 to enter the interior of the receiving cavity 11. The pressing part 22 on the pushing component 20 is positioned on the side of the frame 30 away from the support component 10. That is, when removing the bushing 32, the support component 10 and the pressing part 22 are located on opposite sides of the bushing 32. The driving part 23 is positioned on the side of the pressing part 22 away from the support component 10, and the connecting part 21 passes through the driving part 23, the pressing part 22, and the bushing hole 31 (or the connecting part 21 passes through the interior of the bushing 32) and is connected to the support component 10. The connecting part 21 is a rod-shaped structure, such as a threaded rod. The driving part 23 and the connecting part 21 can be connected by threads. Rotating the driving part 23 converts torque into thrust along the axial direction of the connecting part 21 under the action of the threads, pushing the pressing part 22 to move along the axial direction of the connecting part 21. The orthogonal projection of the pressing part 22 along the axial direction of the connecting part 21 is at least partially located on the bushing 32. When the driving part 23 pushes the pressing part 22 toward the receiving cavity 11, the pressing part 22 will abut against one side of the bushing 32 and push the bushing 32, causing it to move toward the receiving cavity 11. During the movement, the bushing 32 gradually slides out of the bushing hole 31 and into the receiving cavity 11. If the outer wall of the bushing 32 fits perfectly with the inner wall of the receiving cavity 11, the bushing 32 and the squeezing part 22 will squeeze the air in the receiving cavity 11. The squeezed air can be discharged from the exhaust hole 12, thus preventing the air in the receiving cavity 11 from being unable to be discharged and hindering the entry of the bushing 32. This ensures that the bushing 32 can quickly enter the receiving cavity 11 from the bushing hole 31, thereby reducing the difficulty of pushing the bushing 32 and improving its disassembly and replacement efficiency.

[0044] The bushing removal and installation structure also allows the bushing 32 to be installed onto the frame 30 by swapping the positions of the load-bearing assembly 10 and the extrusion part 22. The drive part 23 remains located on the side of the extrusion part 22 away from the load-bearing assembly 10. Simultaneously, the bushing 32 is positioned between the extrusion part 22 and the bushing hole 31 on the frame 30. The drive part 23, extrusion part 22, bushing 32, and bushing hole 31 are connected to the load-bearing assembly 10 via a connecting part 21. Rotating the drive part 23 converts torque into thrust under the action of the threads, pushing the extrusion part 22 so that it can push the bushing 32 into the bushing hole 31, thus completing the installation of the bushing 32. This structure has fewer parts, is simple to assemble and disassemble, and is easy to carry. The extrusion part 22 and the load-bearing assembly 10 are interchangeable, allowing for the matching of bushings 32 of different specifications.

[0045] Please see Figure 5 In conjunction with the above embodiments, in some embodiments, the carrier component 10 includes a receiving portion 13 and a supporting portion 14.

[0046] A receiving portion 13 is disposed on one side of the extrusion portion 22 along the axial direction of the connecting portion 21. The receiving portion 13 has a receiving cavity 11 and an opening 131 communicating with the receiving cavity 11. The opening 131 is disposed on the side of the receiving portion 13 away from the extrusion portion 22. A supporting portion 14 is connected to the side of the receiving portion 13 away from the extrusion portion 22 and covers the opening 131. The connecting portion 21 passes through the receiving cavity 11 and the supporting portion 14.

[0047] It is understood that the receiving portion 13 on the supporting assembly 10 can be a sleeve-shaped structure, which has a receiving cavity 11 for receiving the bushing 32 inside, and can also be provided with an exhaust hole 12 for venting air from the receiving cavity 11. The exhaust hole 12 can be located at the middle position of the side wall of the receiving portion 13, or it can be located at the bottom position of the side wall of the receiving portion 13 (e.g., Figure 5 (As shown). An opening 131 is provided on the side of the receiving part 13 away from the extrusion part 22. The support part 14 on the bearing assembly 10 can cover the opening 131. When the bushing 32 is pushed into the inside of the receiving cavity 11, the bushing 32 can be supported by the support part 14 to prevent the bushing 32 from slipping out of the inside of the receiving cavity 11.

[0048] The support 14 and the receiving part 13 can also be an integral structure, which together form a cup-shaped structure with the opening facing the bushing hole 31 on the frame 30, so that the bushing 32 can enter the interior of the receiving cavity 11.

[0049] Please see Figure 4 and Figure 5In conjunction with the above embodiments, in some embodiments, the supporting component 10 further includes a fixing part 15, which is connected to the side of the supporting part 14 away from the receiving part 13, and the connecting part 21 passes through the fixing part 15 and is connected to the fixing part 15.

[0050] Understandably, a fixing part 15 can also be provided on the side of the support part 14 away from the receiving part 13. The fixing part 15 supports the support part 14 and prevents the support part 14 from sliding downward. The fixing part 15 can be a nut structure, sleeved on the connecting part 21 and connected to the connecting part 21 by threads. The fixing part 15 can support both the support part 14 and the receiving part 13, ensuring their stability during use. This ensures that the receiving part 13 can always abut against the frame 30 during the disassembly or installation of the bushing 32, preventing it from falling off the connecting part 21 due to external forces.

[0051] Please see Figure 3 and Figure 4 In conjunction with the above embodiments, in some embodiments, the receiving part 13 has an exhaust hole 12, which communicates with the opening 131; the bearing assembly 10 also includes a positioning part 16, which is connected to the side of the support part 14 facing the pressing part 22, and the positioning part 16 passes through the exhaust hole 12 and is spaced apart from the top wall 121 of the exhaust hole 12.

[0052] Understandably, the vent 12 can be located at the bottom of the receiving portion 13, communicating with the opening 131 on the receiving portion 13. During the disassembly of the bushing 32, when the bushing 32 is pushed into the receiving cavity 11 from the bushing hole 31, the vent 12 can continuously expel the air in the receiving cavity 11 without being covered by the moving bushing 32 (if the vent 12 is located in the middle of the receiving portion 13, it may be covered by the moving bushing 32, causing the air in the receiving cavity 11 to be unable to be expelled before the bushing 32 is fully inserted into the receiving cavity 11, thus hindering the movement of the bushing 32), until the bushing 32 moves to the bottom of the receiving cavity 11 and is fully inserted into the receiving cavity 11. A positioning part 16 can also be provided on the supporting component 10. The width of the positioning part 16 can match the width of the exhaust hole 12, so that at least a part of the positioning part 16 connected to the support part 14 is embedded in the exhaust hole 12, and the two sides of the positioning part 16 abut against the two side walls of the exhaust hole 12, thereby positioning the receiving part 13 and preventing the receiving part 13 from shifting or rotating. The top of the positioning part 16 is spaced apart from the top wall 121 of the exhaust hole 12, so that there is a certain space between them, which facilitates the air in the receiving cavity 11 to be discharged from the space between them. This does not affect the exhaust effect of the exhaust hole 12, and there is no need to set a positioning hole groove on the receiving part 13 to match the positioning part 16, which reduces the structure and reduces the difficulty of the structure processing.

[0053] Please see Figure 6 and Figure 7 In conjunction with the above embodiments, in some embodiments, there are multiple exhaust holes 12, which are arranged at intervals along the circumference of the receiving portion 13, and there are multiple positioning portions 16, each positioning portion 16 passing through one exhaust hole 12.

[0054] Understandably, multiple vent holes 12 can be provided on the receiving portion 13 to increase the exhaust volume inside the receiving cavity 11, facilitating the rapid discharge of internal air. The number of positioning portions 16 can be the same as the number of vent holes 12, and their positions correspond one-to-one, so that at least a portion of each positioning portion 16 can be embedded inside the corresponding vent hole 12. By cooperating with multiple positioning portions 16 and multiple vent holes 12, the positioning effect of the receiving portion 13 can be further improved, and the stability of the receiving portion 13 during use can be enhanced, preventing positional shift.

[0055] Please see Figure 6 and Figure 8 In conjunction with the above embodiments, in some embodiments, there are multiple exhaust holes 12, with at least two exhaust holes 12 arranged radially at intervals along the connecting portion 21, and multiple positioning portions 16, which are arranged crosswise and extend radially along the connecting portion 21, with each positioning portion 16 passing through two exhaust holes 12.

[0056] It is understandable that when multiple vent holes 12 are provided, every two vent holes 12 are arranged at radial intervals along the connecting portion 21 (e.g., Figure 6 As shown, multiple positioning parts 16 are provided on the support part 14, and the multiple positioning parts 16 are arranged intersectingly, with the intersection located at the center of the support part 14. The connecting part 21 passes through the intersection of the multiple positioning parts 16. Each positioning part 16 extends radially along the connecting part 21, so that each positioning part 16 can pass through two exhaust holes 12. The multiple positioning parts 16 not only provide a positioning effect, but also improve the structural strength of the support part 14, preventing the fixing part 15 from exerting excessive force on the support part 14, which could lead to deformation or damage to the support part 14.

[0057] Please see Figure 3 In conjunction with the above embodiments, in some embodiments, the orthogonal projection of the extrusion portion 22 on the axial direction of the connecting portion 21 is located within the receiving cavity 11.

[0058] Understandably, the orthographic projection of the extrusion part 22 needs to be located within the receiving cavity 11 so that the extrusion part 22 can be embedded into the receiving cavity 11. After the bushing 32 enters the interior of the receiving cavity 11, if the connection between the bushing 32 and the inner wall of the receiving cavity 11 is too tight, making it inconvenient to remove the bushing 32 from the interior of the receiving cavity 11, the entire structure can be removed from the frame 30, and then the connecting part 21 can be inserted into the interior of the receiving cavity 11. The driving part 23 drives the extrusion part 22 to be embedded into the receiving cavity 11, so that the extrusion part 22 pushes out the bushing 32 in the receiving cavity 11, thereby facilitating the removal of the bushing 32 located in the receiving cavity 11 and reducing the difficulty of removing the bushing 32.

[0059] Please see Figure 1 In conjunction with the above embodiments, in some embodiments, the extrusion part 22 includes a sliding plate 221 and a thrust ring 222.

[0060] The connecting part 21 passes through the sliding plate 221, and the sliding plate 221 is slidably connected to the connecting part 21. The thrust ring 222 is connected to the side of the sliding plate 221 facing the bearing assembly 10 and is used to push the bushing 32.

[0061] Understandably, a thrust ring 222 is provided on the extrusion section 22. The inner diameter of the thrust ring 222 can be the same as the inner diameter of the bushing 32, and the outer diameter of the thrust ring 222 can be smaller than the inner diameter of the bushing 32; or, the outer diameter of the thrust ring 222 can be the same as the outer diameter of the bushing 32, and the inner diameter of the thrust ring 222 can be larger than the inner diameter of the bushing 32; or, both the inner and outer diameters of the thrust ring 222 can be the same as the inner and outer diameters of the bushing 32. Both the thrust ring 222 and the bushing 32 are annular structures, which can evenly transmit the force to the bushing 32 when the thrust ring 222 moves along the axial direction of the connecting section 21, effectively pushing the bushing 32. Furthermore, the interior of the thrust ring 222 is a hollow structure, which can reduce the weight of the structure and facilitate carrying. A sliding plate 221 is connected to the side of the thrust ring 222 away from the bearing assembly 10. The sliding plate 221 has a circular structure. The driving part 23 abuts against the sliding plate 221 and drives the thrust ring 222 to move towards the bushing 32 by pushing the sliding plate 221.

[0062] Please see Figure 4 In conjunction with the above embodiments, in some embodiments, the drive unit 23 includes a rotating section 231 and a gripping section 232.

[0063] The connecting portion 21 passes through the rotating section 231 and is threadedly connected to the rotating section 231. The extending direction of the rotating section 231 is the same as the extending direction of the connecting portion 21. The gripping section 232 is at least partially connected to the rotating section 231, and the extending direction of the gripping section 232 intersects the extending direction of the rotating section 231.

[0064] It is understood that the rotating section 231 on the drive unit 23 has a tubular structure, and the connecting part 21 is located inside the rotating section 231 and connected to it via threads. Under the action of the threads, the torque of the rotation of the rotating section 231 can be converted into thrust to push the pressing part 22. The gripping section 232 on the drive unit 23 can be connected to the outside of the rotating section 231, making it convenient for the user to grip and facilitating the rotation of the rotating section 231 by the gripping section 232, thus improving the ease of rotation of the rotating section 231. The number of gripping sections 232 can be one or more, preferably two gripping sections 232, which are symmetrically arranged. The extension direction of the gripping section 232 intersects the extension direction of the rotating section 231, and preferably, the extension directions of the two are perpendicular to each other.

[0065] Please see Figure 1 In conjunction with the above embodiments, in some embodiments, the extrusion part 22 has a connecting groove 223 on the side opposite to the bearing assembly 10, the connecting part 21 passes through the connecting groove 223, and the bottom end of the rotating section 231 is embedded in the connecting groove 223.

[0066] Understandably, by providing a connecting groove 223 on the extrusion part 22, the bottom end of the rotating section 231 can be embedded into the connecting groove 223 during structural assembly. Since the rotating section 231 and the connecting part 21 are connected by threads, the connection stability is high, and the rotating section 231 is not prone to shaking on the connecting part 21. However, the connecting part 21 passes through the corresponding through hole on the extrusion part 22, and the two are not connected by threads. The connection stability between the extrusion part 22 and the connecting part 21 is low, and it is prone to shaking. Therefore, by embedding the more stable rotating section 231 into the connecting groove 223, the stability of the extrusion part 22 can be improved, preventing its position from shifting and ensuring that the extrusion part 22 can correspond to the position of the bushing 32 on the frame 30, allowing the bushing 32 to be pushed out of the bushing hole 31.

[0067] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0068] The bushing assembly and disassembly structure provided in the embodiments of this application has been described in detail above, and specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A bushing assembly / disassembly structure, characterized in that, include: The support assembly (10) has a receiving cavity (11) and an exhaust port (12) communicating with the receiving cavity (11); The pushing component (20) includes a connecting part (21), a pressing part (22) and a driving part (23). The connecting part (21) is used to pass through the driving part (23), the pressing part (22) and the bushing hole (31) and is connected to the bearing component (10). The driving part (23) is disposed on the side of the pressing part (22) away from the bearing component (10). The bearing assembly (10) and the extrusion part (22) are respectively disposed on both sides of the frame (30), and the driving part (23) is used to drive the extrusion part (22) to move axially along the connecting part (21) to push the bushing (32) toward the receiving cavity (11).

2. The bushing disassembly and assembly structure according to claim 1, characterized in that, The carrier component (10) includes: A receiving portion (13) is provided on one side of the extrusion portion (22) along the axial direction of the connecting portion (21). The receiving portion (13) has the receiving cavity (11) and an opening (131) communicating with the receiving cavity (11). The opening (131) is provided on the side of the receiving portion (13) away from the extrusion portion (22). A support portion (14) is connected to the side of the receiving portion (13) away from the squeezing portion (22) and covers the opening (131). The connecting portion (21) passes through the receiving cavity (11) and the support portion (14).

3. The bushing disassembly and assembly structure according to claim 2, characterized in that, The carrier component (10) further includes: The fixing part (15) is connected to the side of the support part (14) away from the receiving part (13), and the connecting part (21) passes through the fixing part (15) and is connected to the fixing part (15).

4. The bushing disassembly and assembly structure according to claim 2, characterized in that, The receiving portion (13) has the vent (12), which communicates with the opening (131); the supporting assembly (10) further includes: The positioning part (16) is connected to the side of the support part (14) facing the extrusion part (22). The positioning part (16) passes through the exhaust hole (12) and is spaced apart from the top wall (121) of the exhaust hole (12).

5. The bushing disassembly and assembly structure according to claim 4, characterized in that, The number of exhaust holes (12) is multiple and they are arranged at intervals along the circumference of the receiving portion (13). The number of positioning portions (16) is multiple, and each positioning portion (16) passes through one of the exhaust holes (12).

6. The bushing disassembly and assembly structure according to claim 4, characterized in that, The number of exhaust holes (12) is multiple, and at least two exhaust holes (12) are arranged at radial intervals along the connecting portion (21). The number of positioning portions (16) is multiple, and the multiple positioning portions (16) are arranged crosswise and extend radially along the connecting portion (21). Each positioning portion (16) passes through two exhaust holes (12).

7. The bushing disassembly and assembly structure according to claim 1, characterized in that, The orthographic projection of the extrusion part (22) on the axial direction of the connecting part (21) is located within the receiving cavity (11).

8. The bushing disassembly and assembly structure according to claim 1, characterized in that, The extrusion section (22) includes: A sliding plate (221) is provided, and the connecting part (21) passes through the sliding plate (221), and the sliding plate (221) is slidably connected to the connecting part (21); A thrust ring (222), connected to the side of the sliding plate (221) facing the bearing assembly (10), is used to push the bushing (32).

9. The bushing disassembly and assembly structure according to claim 1, characterized in that, The drive unit (23) includes: Rotating segment (231), the connecting part (21) passes through the rotating segment (231) and is threadedly connected to the rotating segment (231), the extending direction of the rotating segment (231) is the same as the extending direction of the connecting part (21); The gripping segment (232) is at least partially connected to the rotating segment (231), and the extending direction of the gripping segment (232) intersects the extending direction of the rotating segment (231).

10. The bushing disassembly and assembly structure according to claim 9, characterized in that, The extrusion section (22) has a connecting groove (223) on the side opposite to the bearing assembly (10), the connecting section (21) passes through the connecting groove (223), and the bottom end of the rotating section (231) is embedded in the connecting groove (223).

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