Oil seal press-fitting device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING HAINACHUAN AUTOMOTIVE PARTS
- Filing Date
- 2025-04-09
- Publication Date
- 2026-06-26
Smart Images
Figure CN224406844U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of oil seal press-fitting technology, and more specifically, to an oil seal press-fitting device. Background Technology
[0002] An oil seal is a mechanical seal widely used in applications requiring the prevention of lubricating oil or liquid leakage from the interior of mechanical components. If an oil seal is not installed correctly, oil leakage may occur, affecting the normal operation of the mechanical parts. For example, in a transmission, if the oil seal leaks, the lubricating oil inside the transmission housing will decrease, leading to poor lubrication of gears, bearings, and other structures, causing abnormal noises, abnormal wear, and even damage to the transmission.
[0003] In related technologies, the installation process of oil seals generally involves: first, placing the oil seal on the shaft, allowing it to slide to the opening of the oil seal receiving space; then, applying force using a pressure component to press the oil seal into the receiving space. However, when the oil seal slides to the opening of the receiving space, it may tilt. Consequently, after the pressure component presses the oil seal into the receiving space, the outer circumference of the oil seal may not fit well against the inner wall of the receiving space, resulting in the oil seal failing to achieve the expected sealing effect after installation. Utility Model Content
[0004] The purpose of this disclosure is to provide an oil seal press-fitting device to solve the technical problems existing in the related art.
[0005] To achieve the above objectives, this application provides an oil seal press-fitting device, comprising:
[0006] A pusher structure, the lower end of which is used to abut against an oil seal;
[0007] A clamping structure is located outside the pushing structure and is used to clamp the oil seal. A stop portion is provided at the lower end of the clamping structure.
[0008] The first elastic element is connected to the pushing structure through the first elastic element, and the first elastic element can extend or shorten in the vertical direction.
[0009] The pushing structure is capable of moving relative to the clamping structure when the stop portion is stopped, so that the oil seal is disengaged from the clamping structure and pressed into the oil seal receiving space.
[0010] Optionally, the clamping structure includes a sleeve and a plurality of clamping members. The sleeve is sleeved outside the pushing structure and connected to the pushing structure through the first elastic member. The plurality of clamping members are spaced apart along the circumference of the sleeve and connected to the sleeve. The plurality of clamping members are used to clamp the oil seal together.
[0011] Optionally, the stop portion is the lower end face of the sleeve, and the lower end face of the clamping member is higher than the lower end face of the sleeve.
[0012] Optionally, the clamping structure further includes a rotating shaft and a second elastic element. The sleeve has a plurality of mounting grooves extending along the vertical direction. The plurality of mounting grooves correspond one-to-one with the plurality of clamping elements. Each clamping element is rotatably mounted in the corresponding mounting groove via the rotating shaft.
[0013] Each of the mounting slots includes an upper slot section and a lower slot section. The upper end of each clamping member is connected to the corresponding upper slot section by a second elastic member. Each lower slot section has a clearance opening for exposing the lower end of the clamping member so that the lower end of the clamping member can abut against the outer peripheral surface of the oil seal.
[0014] Optionally, a limiting part is provided on the outer peripheral surface of the pushing structure, and an avoidance groove is provided on the sleeve. The limiting part passes through the avoidance groove, and the avoidance groove extends along the vertical direction. The upper end of the avoidance groove is closed and the lower end is open.
[0015] Optionally, the oil seal pressing device further includes a connector, which is disposed above the clamping structure and connected to the pushing structure. The lower end of the first elastic member is connected to the clamping structure, and the upper end of the first elastic member is connected to the connector.
[0016] Optionally, the first elastic element is a first spring, and the oil seal pressing device further includes a guide rod. The lower end of the guide rod is connected to the clamping structure, and the upper end of the guide rod is movably inserted through the connecting member. The first spring is sleeved on the guide rod.
[0017] Optionally, the oil seal press-fitting device further includes a positioning structure, which includes a positioning shaft and a third elastic element;
[0018] The push structure has an internal cavity, the positioning shaft is located inside the cavity, and the lower end of the cavity is an open end through which the positioning shaft can pass.
[0019] The lower end of the positioning shaft is provided with a positioning part, and the outer diameter of the positioning part gradually decreases from top to bottom.
[0020] The third elastic element is located inside the cavity, and the lower end of the third elastic element is connected to the upper end of the positioning shaft, while the upper end of the third elastic element is connected to the cavity wall.
[0021] Optionally, the pushing structure includes a pressure rod and a pressure head, the lower end of the pressure rod being detachably connected to the pressure head via a first fastener, and the lower end of the pressure head being used to abut against the oil seal.
[0022] Optionally, the pushing structure includes a pressure rod and a connecting seat. The connecting seat is sleeved on the upper end of the pressure rod, and the side wall of the connecting seat is detachably connected to the pressure rod by a second fastener. The upper end of the connecting seat is provided with a connecting part for connecting to the driving mechanism.
[0023] Through the above technical solution, the oil seal pressing device is equipped with a clamping structure, which can clamp the oil seal and keep it perpendicular to the shaft on which the oil seal is fitted. The oil seal is then sent to the opening of the oil seal receiving space, and then the pushing structure presses the oil seal into the oil seal receiving space. This allows the oil seal to enter the oil seal receiving space in a position perpendicular to the shaft on which the oil seal is fitted, ensuring that the outer circumference of the oil seal fits well with the inner wall of the oil seal receiving space, thus guaranteeing the sealing effect after the oil seal is installed.
[0024] Other features and advantages of this disclosure will be described in detail in the following detailed description section. Attached Figure Description
[0025] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:
[0026] Figure 1 This is an exploded view of an oil seal press-fitting apparatus provided in an exemplary embodiment of the present disclosure, wherein the oil seal is also shown.
[0027] Figure 2 This disclosure provides a front view of an oil seal press-fitting apparatus according to an exemplary embodiment, wherein an oil seal is also shown.
[0028] Figure 3 It is along Figure 2 A cross-sectional view along line AA in the middle.
[0029] Figure 4 This is an exploded view of the pressure bar and pressure head of a push structure provided in an exemplary embodiment of this disclosure, wherein a positioning shaft is also shown.
[0030] Figure 5 This is a perspective view of a sleeve provided according to an exemplary embodiment of the present disclosure.
[0031] Explanation of reference numerals in the attached figures
[0032] 100. Oil seal pressing device; 10. Clamping structure; 11. Sleeve; 111. Stop part; 112. Clearance groove; 113. Mounting groove; 1131. Lower groove section; 1132. Upper groove section; 12. Clamping component; 13. Rotating shaft; 14. Second elastic component; 20. Pushing structure; 21. Pressure rod; 211. First connecting hole; 214. Elastic washer; 22. Pressure head; 221. Second connecting hole; 222. Anti-reverse installation structure; 223. Pressure head body; 224. Limiting part; 23. Connecting seat; 231. Connecting part; 24. First fastener; 25. Second fastener; 26. Cavity; 30. Positioning structure; 31. Third elastic component; 32. Positioning shaft; 321. Positioning part; 33. Slider; 40. First elastic component; 50. Connecting component; 60. Guide rod; 200. Oil seal. Detailed Implementation
[0033] The specific embodiments of this disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this disclosure.
[0034] In the description of this disclosure, it should be understood that the terms "up," "down," "up and down direction," etc., indicate the orientation or positional relationship based on... Figure 2 and Figure 3 The orientations shown in the drawings are defined only for the purpose of facilitating and simplifying the description of this disclosure, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or a specific orientation construction and operation, and therefore should not be construed as a limitation of this disclosure.
[0035] In this disclosure, it should be noted that terms such as "first" and "second" are used to distinguish one element from another and do not indicate sequence or importance. Furthermore, in the description with reference to the accompanying drawings, the same reference numerals in different drawings denote the same elements.
[0036] In the description of this disclosure, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "connect," "link," and "install" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.
[0037] like Figures 1 to 5As shown, this disclosure provides an oil seal pressing device 100, including a pushing structure 20, a clamping structure 10, and a first elastic member 40. The lower end of the pushing structure 20 is used to abut against the oil seal 200. The clamping structure 10 is located outside the pushing structure 20 and is used to clamp the oil seal 200. The lower end of the clamping structure 10 is provided with a stop portion 111. The clamping structure 10 is connected to the pushing structure 20 through the first elastic member 40, which can extend or shorten in the vertical direction. The pushing structure 20 can move relative to the clamping structure 10 when the stop portion 111 is stopped, so that the oil seal 200 is disengaged from the clamping structure 10 and pressed into the oil seal receiving space.
[0038] When pressing the oil seal 200 using the oil seal pressing device 100 provided in this disclosure, the oil seal 200 can be clamped by the clamping structure 10 first, and then the entire oil seal pressing device 100 can be moved so that the clamping structure 10 and the pushing structure 20 move together toward the direction close to the oil seal receiving space. When the stop part 111 of the clamping structure 10 is stopped, the clamping structure 10 can no longer move toward the direction close to the oil seal receiving space. At this time, the pushing structure 20 continues to move toward the direction close to the oil seal receiving space relative to the clamping structure 10. The first elastic member 40 is compressed, and the pushing structure 20 gradually pushes the oil seal 200 out of the clamping structure 10 and gradually presses the oil seal 200 into the oil seal receiving space.
[0039] It should be noted that the stop portion 111 of the clamping structure 10, when installing the oil seal 200, is stopped by a structure outside the oil seal receiving space. For example, in a transmission, there is an oil seal receiving space between the transmission shaft and the housing. The oil seal 200 can be sleeved on the shaft and installed in the oil seal receiving space. A stop flange is usually formed on the inner wall of the housing. This stop flange is adjacent to the opening of the oil seal receiving space. When the oil seal pressing device 100 presses the oil seal 200, the stop flange can abut against the stop portion 111 of the clamping structure 10 to stop the clamping structure 10.
[0040] Furthermore, during the process of the clamping structure 10 moving the oil seal 200 to the oil seal receiving space, the pushing structure 20 may or may not contact the oil seal 200; that is, it may or may not abut against the oil seal 200. When the clamping structure 10 is stopped, it no longer follows the pushing structure 20. At this time, the pushing structure 20 continues to move and abuts against the oil seal 200, and continues to push the oil seal 200 until it is installed in place. Here, the thrust of the pushing structure 20 can be provided by human power or by a drive mechanism; this disclosure does not limit this.
[0041] Through the above technical solution, since the oil seal pressing device 100 provided in this disclosure is provided with a clamping structure 10, the clamping structure 10 can clamp the oil seal 200, so that the oil seal 200 is sent to the opening of the oil seal receiving space in a posture perpendicular to the shaft on which the oil seal is fitted. Then, the oil seal 200 is pressed into the oil seal receiving space by the pushing structure 20, so that the oil seal 200 can enter the oil seal receiving space in a posture perpendicular to the shaft on which the oil seal is fitted, ensuring that the outer peripheral surface of the oil seal 200 fits well with the inner wall of the oil seal receiving space, and ensuring the sealing effect of the oil seal 200 after installation.
[0042] Optionally, such as Figure 1 As shown, the clamping structure 10 may include a sleeve 11 and multiple clamping members 12. The sleeve 11 is sleeved on the outside of the pushing structure 20. The sleeve 11 can be connected to the pushing structure 20 through a first elastic member 40, so that the sleeve 11 can move with the pushing structure 20 and can move relative to the pushing structure 20. The multiple clamping members 12 can be connected to the sleeve 11. The clamping members 12 can move with the sleeve 11 or stop moving. The multiple clamping members 12 can be arranged at intervals along the circumference of the sleeve 11. In this way, the multiple clamping members 12 can form abutment force at multiple positions on the outer wall of the oil seal 200, so that the multiple clamping members 12 can be used to jointly clamp the oil seal 200, ensuring the stability of the oil seal 200 clamping and preventing the oil seal 200 from falling or shifting.
[0043] The stop portion 111 of the clamping structure 10 may be the lower end face of the clamping member 12 or the lower end face of the sleeve 11, or the lower end face of the clamping member 12 and the lower end face of the sleeve 11 may together form the stop portion 111. This disclosure does not limit this.
[0044] In one exemplary embodiment provided in this disclosure, the stop portion 111 is the lower end face of the sleeve 11, and the lower end face of the clamping member 12 is higher than the lower end face of the sleeve 11. With this configuration, when the stop portion 111 is stopped, i.e., the lower end face of the sleeve 11 is abutted, the lower end face of the clamping member 12 does not need to be abutted. This ensures that when the clamping member 12 releases the oil seal 200, there is no resistance from the lower end face of the clamping member 12 being abutted, thereby facilitating the release of the oil seal 200 by the clamping member 12 and preventing the lower end face of the clamping member 12 from being abutted and affecting the detachment of the oil seal 200.
[0045] As one implementation, the clamping member 12 can be configured as an elastic structure, such as a spring sheet, which can clamp the oil seal 200 with elastic force, and after the oil seal 200 is released, the elastic structure on the clamping member 12 can spring back to its original state. With this configuration, the stability of the oil seal 200 being clamped can be ensured, while also facilitating the release of the oil seal 200.
[0046] As another implementation method, such as Figure 3 and Figure 5 As shown, the clamping structure 10 may also include a rotating shaft 13 and a second elastic element 14. The sleeve 11 has multiple mounting grooves 113 extending in the vertical direction. The multiple mounting grooves 113 correspond one-to-one with multiple clamping elements 12. Each clamping element 12 is rotatably mounted in the corresponding mounting groove 113 via the rotating shaft 13. In this way, the clamping element 12 can rotate along the rotating shaft 13, and the lower ends of the multiple clamping elements 12 can move closer or further away from each other to achieve clamping and releasing of the oil seal 200.
[0047] Each mounting groove 113 includes an upper groove section 1132 and a lower groove section 1131. A second elastic member 14 connects the upper end of each clamping member 12 to the corresponding upper groove section 1132. Thus, when each second elastic member 14 pushes the upper end of its corresponding clamping member 12, the lower ends of the multiple clamping members 12 tend to move closer together, which helps to ensure that the lower ends of the clamping members 12 can press against the oil seal 200. Here, each lower groove section 1131 may have a clearance opening to expose the lower end of the clamping member 12, allowing the lower end of the clamping member 12 to abut against the outer peripheral surface of the oil seal 200, thereby preventing the lower end of the clamping member 12 from being blocked by the sleeve 11.
[0048] Optionally, the second elastic element 14 can be a spring, an elastic block, etc., and this disclosure does not limit it.
[0049] Optionally, such as Figure 1 and Figure 2 As shown, a limiting part 224 can be provided on the outer peripheral surface of the pushing structure 20, and a relief groove 112 is provided on the sleeve 11. The limiting part 224 passes through the relief groove 112, which extends vertically. The upper end of the relief groove 112 is closed and the lower end is open. The open lower end of the relief groove 112 allows the limiting part 224 to be located at the open lower end of the relief groove 112, that is, the lower end of the sleeve 11 will not block the limiting part 224. Since the limiting part 224 passes through the relief groove 112 on the sleeve 11, the stop part 111 and the limiting part 224 at the lower end of the sleeve 11 can be stopped by the same structure. When the push structure 20 pushes the oil seal 200 to move, when the limiting part 224 of the push structure 20 is stopped, that is, stopped by the structure outside the oil seal receiving space mentioned above (for example, stopped by the stop flange on the transmission housing), the push structure 20 stops moving, and the oil seal 200 is installed in place.
[0050] Here, the distance between the limiting part 224 and the contact position between the pushing structure 20 and the oil seal 200 (i.e., the lower end of the pushing structure 20) is the required installation depth of the oil seal 200. This setting makes it easy to control the installation depth of the oil seal 200 and avoids the oil seal pressing device 100 from over-pressing or under-pressing the oil seal 200.
[0051] In some implementations, such as Figure 1 As shown, multiple limiting parts 224 can be provided, and the clearance grooves 112 can be set according to the number of limiting parts 224. Multiple limiting parts 224 can be set along the circumference of the pushing structure 20. In this way, it can be ensured that the limiting parts 224 are subjected to uniform force when they stop, and the pushing structure 20 is prevented from tilting due to uneven force.
[0052] Optionally, the oil seal pressing device 100 may further include a connector 50, which is disposed above the clamping structure 10 and connected to the pushing structure 20. The lower end of the first elastic member 40 is connected to the clamping structure 10, and the upper end of the first elastic member 40 is connected to the connector 50. This arrangement facilitates the connection between the pushing structure 20 and the clamping structure 10, and the first elastic member 40 can be compressed when the pushing structure 20 moves relative to the clamping structure 10.
[0053] Optionally, there can be multiple first elastic elements 40, which can be spaced apart circumferentially around the pushing structure 20. Correspondingly, there can also be multiple connecting elements 50, each corresponding to one of the multiple pushing structures 20; or, the connecting element 50 can be a disc, which is sleeved on the pushing structure and connected to the multiple first elastic elements 40. For example, as... Figure 2 In the embodiment where the connector 50 is a disc, the connector 50 can be sleeved on the pressure rod 21 of the push structure 20.
[0054] Here, the first elastic element 40 can be a spring, elastic block, or sheet, or other elastic structure that can return to its original shape after the external force is removed. This ensures that when the clamping structure 10 is stopped, the first elastic element 40 can shorten in the vertical direction, so that the clamping structure 10 no longer moves with the pushing structure 20. Furthermore, when the stop portion 111 is not stopped, the first elastic element 40 can rebound (i.e., extend) in the vertical direction, so that the clamping structure 10 and the pushing structure 20 can be reset.
[0055] In one exemplary embodiment provided in this disclosure, the first elastic element 40 can be a first spring. The oil seal pressing device 100 also includes a guide rod 60. The lower end of the guide rod 60 is connected to the clamping structure 10, and the upper end of the guide rod 60 is movably inserted through the connecting member 50. The first spring is sleeved on the guide rod 60. The first spring and the clamping structure 10 allow the clamping structure 10 to move away from or closer to the connecting member 50 via the first spring. The guide rod 60 prevents the first spring from twisting or shifting during vertical extension and retraction, thus avoiding affecting the position of the clamping structure 10.
[0056] When the stop 111 is stopped, the clamping structure 10 stops moving, but the pushing structure 20 continues to move downward. Since the clamping structure 10 is connected to the pushing structure 20, the first spring is compressed at this time, and the clamping structure 10 moves upward relative to the pushing structure 20. During this process, the clamping structure 10 drives the guide rod 60 to move upward relative to the pushing structure 20. After the oil seal 200 is installed, the oil seal pressing device 100 is removed, the stop 111 is no longer abutted, and the first spring returns to its original state, so that the clamping structure 10 resets.
[0057] Optionally, the oil seal pressing device 100 may further include a positioning structure 30, which includes a positioning shaft 32 and a third elastic element 31. The pushing structure 20 has an internal cavity 26, within which the positioning shaft 32 is located. The lower end of the cavity 26 is an open end through which the positioning shaft 32 can pass. A positioning portion 321 is provided at the lower end of the positioning shaft 32, with its outer diameter gradually decreasing from top to bottom. The third elastic element 31 is located within the cavity 26, with its lower end connected to the upper end of the positioning shaft 32 and its upper end connected to the cavity wall of the cavity 26. Since the positioning shaft 32 is connected to the pushing structure 20 via the third elastic element 31, the positioning shaft 32 can move together with the pushing structure 20.
[0058] The positioning shaft 32 is used to position the oil seal pressing device 100, ensuring that the axial direction of the positioning structure 30 is coaxial with the axial direction for supplying the oil seal 200, thereby ensuring that the oil seal 200 is perpendicular to the shaft for supplying the oil seal 200, and thus ensuring the sealing performance of the oil seal 200 after installation. Specifically, the shaft for supplying the oil seal is hollow. The positioning part 321 of the positioning shaft 32 can extend into the interior of the hollow shaft. When the outer wall of one side of the positioning part 321 has touched the upper end of the inner wall of the hollow shaft, but the outer wall of the other side of the positioning part 321 has not yet touched the upper end of the inner wall of the hollow shaft, it indicates that the oil seal pressing device 100 is offset. At this time, as the pushing structure 20 continues to move downward, since one side of the positioning part 321 has already abutted the upper end of the inner wall of the hollow shaft, the oil seal pressing device 100 will move towards the other side where there is a gap, thereby correcting the offset of the oil seal pressing device 100. When the entire outer sidewall of the positioning part 321 is in contact with the upper end of the inner sidewall of the hollow shaft at the same horizontal plane, the positioning shaft 32 stops moving with the pushing structure 20. At this point, the positioning shaft 32 is positioned. As the pushing structure 20 continues to move, the third elastic member 31 is compressed.
[0059] Here, the positioning part 321 can be configured as a suitable structure such as a cone or a frustum.
[0060] In some embodiments, the positioning structure 30 may further include a slider 33 connected to the positioning shaft 32. The inner wall of the cavity 26 is provided with a groove extending axially along the pushing structure 20. The slider 33 is mounted in the groove and can slide along the groove. In this way, when the third elastic member 31 is compressed, the positioning shaft 32 will move along the trajectory of the slider 33 along the groove, thus avoiding the positioning shaft 32 from shifting relative to the pushing structure 20 and improving positioning accuracy.
[0061] Optionally, the pushing structure 20 may include a pressure rod 21 and a pressure head 22. The lower end of the pressure rod 21 is detachably connected to the pressure head 22 via a first fastener 24, and the lower end of the pressure head 22 is used to abut against the oil seal 200. In this way, the oil seal pressing device 100 can replace the pressure head 22 with a suitable one according to the size and model of the oil seal 200.
[0062] Here, the pressure head 22 and the pressure rod 21 can be connected by a first fastener 24, which can be a suitable structure such as a screw or bolt. Figure 3 and Figure 4 As shown, when the first fastener 24 is a screw, a step can be provided on the inner wall of the pressure head body 223, and a through second connecting hole 221 can be provided on the step. The second connecting hole 221 can be a threaded hole or a through hole. A first connecting hole 211 is provided at the lower part of the pressure rod 21. The first connecting hole 211 can be a threaded hole. The screw connects the first connecting hole 211 and the second connecting hole 221, and the screw nut is pressed onto the step, completing the installation of the pressure head 22 and the pressure rod 21. This facilitates the installation and disassembly of the pressure head 22 and the pressure rod 21.
[0063] In some embodiments, the lower end of the pressure head 22 is also provided with an anti-reverse mounting structure 222, such as... Figure 4 As shown, the anti-reverse mounting structure 222 can be set as a downward protrusion. In this way, when the oil seal 200 is placed in reverse, it will interfere with the anti-reverse mounting structure 222, thereby ensuring the correct placement of the oil seal 200 and improving the installation efficiency and accuracy of the oil seal 200.
[0064] It is understandable that, such as Figure 3 The cavity 26 shown above can be formed inside the pressure rod 21 and the pressure head 22. The sleeve 11 can be sleeved on the pressure rod 21 and connected to the pressure rod 21. The connector 50 can be located outside the pressure rod 21 and connected to the pressure rod 21.
[0065] Optionally, the pushing structure 20 may further include a pressure rod 21 and a connecting seat 23. The connecting seat 23 is sleeved on the upper end of the pressure rod 21, and the side wall of the connecting seat 23 is detachably connected to the pressure rod 21 by a second fastener 25. The upper end of the connecting seat 23 is provided with a connecting part 231 for connecting with a drive mechanism. The drive mechanism is used to provide power for the downward movement of the pressure rod 21.
[0066] The second fastener 25 can be configured as a quick-change device to facilitate the replacement of the pressure rod 21. For example, the second fastener 25 can be configured as a threaded component, with a threaded hole on the pressure rod 21 to engage with the threaded component. Alternatively, the second fastener 25 can be configured as a snap-fit component, with a snap-fit groove on the pressure rod 21, allowing the snap-fit component to engage with the snap-fit groove to complete the connection between the two.
[0067] To ensure a tighter connection between the pressure rod 21 and the connecting seat 23, the oil seal pressing device 100 may also include an elastic washer 214. The outer diameter of the elastic washer 214 is larger than the outer diameter of the pressure rod 21. The elastic washer 214 is clamped between the outer side of the pressure rod 21 and the inner side of the connecting seat 23. This ensures a tight fit between the pressure rod 21 and the connecting seat 23, which helps to prevent the pressure rod 21 from shaking.
[0068] The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
[0069] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction, and this disclosure will not describe the various possible combinations separately.
[0070] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.
Claims
1. An oil seal press fitting device characterized by comprising: include: A pusher structure, the lower end of which is used to abut against an oil seal; A clamping structure is located outside the pushing structure and is used to clamp the oil seal. A stop portion is provided at the lower end of the clamping structure. The first elastic element is connected to the pushing structure through the first elastic element, and the first elastic element can extend or shorten in the vertical direction. The pushing structure is capable of moving relative to the clamping structure when the stop portion is stopped, so that the oil seal is disengaged from the clamping structure and pressed into the oil seal receiving space.
2. The oil seal press assembly of claim 1, wherein, The clamping structure includes a sleeve and a plurality of clamping members. The sleeve is sleeved outside the pushing structure and connected to the pushing structure through the first elastic member. The plurality of clamping members are spaced apart along the circumference of the sleeve and connected to the sleeve. The plurality of clamping members are used to clamp the oil seal together.
3. The oil seal press assembly of claim 2, wherein, The stop portion is the lower end face of the sleeve, and the lower end face of the clamping member is higher than the lower end face of the sleeve.
4. The oil seal press assembly of claim 2, wherein, The clamping structure further includes a rotating shaft and a second elastic element. The sleeve has multiple mounting slots extending along the vertical direction. Each of the multiple mounting slots corresponds to a multiple clamping element. Each clamping element is rotatably mounted in the corresponding mounting slot via the rotating shaft. Each of the mounting slots includes an upper slot section and a lower slot section. The upper end of each clamping member is connected to the corresponding upper slot section by a second elastic member. Each lower slot section has a clearance opening for exposing the lower end of the clamping member so that the lower end of the clamping member can abut against the outer peripheral surface of the oil seal.
5. The oil seal pressing device according to claim 2, characterized in that, A limiting part is provided on the outer peripheral surface of the pushing structure, and an avoidance groove is provided on the sleeve. The limiting part passes through the avoidance groove, which extends along the vertical direction. The upper end of the avoidance groove is closed and the lower end is open.
6. The oil seal press-fitting device according to any one of claims 1-5, characterized in that, The oil seal pressing device further includes a connector, which is disposed above the clamping structure and connected to the pushing structure. The lower end of the first elastic member is connected to the clamping structure, and the upper end of the first elastic member is connected to the connector.
7. The oil seal pressing device according to claim 6, characterized in that, The first elastic element is a first spring. The oil seal pressing device also includes a guide rod. The lower end of the guide rod is connected to the clamping structure, and the upper end of the guide rod is movably inserted through the connecting member. The first spring is sleeved on the guide rod.
8. The oil seal pressing device according to claim 1, characterized in that, The oil seal press-fitting device also includes a positioning structure, which includes a positioning shaft and a third elastic element; The push structure has an internal cavity, the positioning shaft is located inside the cavity, and the lower end of the cavity is an open end through which the positioning shaft can pass. The lower end of the positioning shaft is provided with a positioning part, and the outer diameter of the positioning part gradually decreases from top to bottom. The third elastic element is located inside the cavity, and the lower end of the third elastic element is connected to the upper end of the positioning shaft, while the upper end of the third elastic element is connected to the cavity wall.
9. The oil seal pressing device according to any one of claims 1-5 or the oil seal pressing device according to claim 8, characterized in that, The pushing structure includes a pressure rod and a pressure head. The lower end of the pressure rod is detachably connected to the pressure head via a first fastener. The lower end of the pressure head is used to abut against the oil seal.
10. The oil seal pressing device according to any one of claims 1-5 or the oil seal pressing device according to claim 8, characterized in that, The pushing structure includes a pressure rod and a connecting seat. The connecting seat is sleeved on the upper end of the pressure rod. The side wall of the connecting seat is detachably connected to the pressure rod by a second fastener. The upper end of the connecting seat is provided with a connecting part for connecting with the driving mechanism.