Automatic release device for bearing press-fit

Abstract

The utility model discloses a bearing press-fit automatic release device which is used for clamping a bearing and can press the clamped bearing into an inner hole of a shell, the bearing press-fit automatic release device comprises a pressing table, a clamping assembly and at least one release component, the clamping assembly is arranged on the pressing table and used for clamping the bearing, and the at least one release component is arranged on the pressing table and used for releasing the bearing. Each releasing component comprises an elastic piece, a blocking piece, a fixing block and a blocked block, the two ends of the elastic piece are connected to the blocking piece and the fixing block respectively, the fixing block is fixed to the preset height, the blocked block is arranged on the clamping assembly, and the blocking piece and the blocked block are arranged on the clamping assembly. And the stopped block is kept above the blocking piece in a manner of spacing the blocking piece, and the stopped block is driven when the pressing table is in press fit with the bearing and is acted by the blocking piece to move in the direction opposite to the pressing direction of the pressing table, so that the clamped bearing is released. Therefore, the operation that the bearing is pressed into the inner hole of the shell in a matched mode is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing press-fitting of a transmission housing, in particular to an automatic release device for bearing press-fitting. Background Art

[0002] At present, in the technical field of bearing press-fitting of a transmission housing, a press head is usually used to press a bearing clamped at the end of the press head into an inner hole of the transmission housing. However, when the inner hole diameter of the transmission housing is larger than the outer diameter of the bearing, there will be a gap between the bearing and the inner wall forming the inner hole of the transmission housing, and thus there is no bonding force between the press-fitted bearing and the inner wall forming the inner hole of the transmission housing. Therefore, when the inner hole of the transmission housing is press-fitted with a bearing by the press head and the press head returns to its original position, the bearing press-fitted in the inner hole of the transmission housing is easily lifted or even separated from the transmission housing due to the clamping force between the press head and the bearing, resulting in the failure of bearing press-fitting. Content of the Utility Model

[0003] To solve the above technical problems and achieve at least one advantage of the present utility model, the present utility model provides an automatic release device for bearing press-fitting, which is used to clamp a bearing and can press-fit the clamped bearing into an inner hole of a housing, wherein the automatic release device for bearing press-fitting includes:

[0004] A press table;

[0005] A clamping assembly, which is arranged on the press table in a manner capable of clamping the bearing;

[0006] At least one release member, each release member includes an elastic member, a blocking member, a fixed block and a blocked block, the elastic member is arranged between the blocking member and the fixed block, and two end portions of the elastic member respectively abut against the blocking member and the fixed block, the blocking member is movably connected to the elastic member and the fixed block, the fixed block is arranged at a predetermined height, and the fixed block is spaced from the pressing member by a predetermined distance, the blocked block is arranged on the clamping assembly, and the blocked block is held above the blocking member in a manner spaced from the blocking member, and the blocked block is driven and acted on by the blocking member to move in a direction opposite to the press-fitting direction of the press table when the press table press-fits the bearing, so as to release the clamped bearing.

[0007] According to an embodiment of the present utility model, the clamping assembly includes at least one elastic element, a guide post, an acting member, and a pressing member. One end of each elastic element is connected to the pressing table, and the end of each elastic element away from the pressing table is connected to the pressing member. The guide post is installed at the bottom of the pressing table, and the end of the guide post away from the pressing table extends integrally outward in the radial direction to form a first step. The acting member is installed on the guide post and abuts against the first step, and the acting member is held below the pressing member. The blocked block of the release member is installed on the side of the pressing member. The pressing member is movably connected to the guide post, and the pressing member can be acted on by the elastic element to approach and act on the acting member located on the guide post.

[0008] According to an embodiment of the present utility model, the number of the elastic elements is set to two, and the two elastic elements are symmetrically arranged between the pressing table and the pressing member.

[0009] According to an embodiment of the present utility model, the guide post extends integrally outward in the radial direction at a position close to the first step to form a second step. The cross-sectional diameter of the second step is smaller than the cross-sectional diameter of the first step, and the distance between the second step and the pressing member is smaller than the distance between the first step and the pressing member. The pressing member extends toward the direction close to the second step to form an abutting portion, and the abutting portion can abut against the second step when the elastic element acts on the pressing member.

[0010] According to an embodiment of the present utility model, the guide post and the pressing member are coaxially arranged, and the pressing member is connected to the guide post in an interference fit manner.

[0011] According to an embodiment of the present utility model, the pressing member forms a fitting portion toward the direction close to the bearing to be clamped, and the fitting portion can be fitted with the outer wall of the bearing when the pressing member acts on the acting member.

[0012] According to an embodiment of the present utility model, the number of the release members is set to two, and the two release members are evenly arranged at the circumferential position of the pressing member.

[0013] According to an embodiment of the present utility model, the guide post forms a diameter-changing portion at the end close to the first step, and the cross-sectional diameter of the diameter-changing portion gradually decreases from the end close to the pressing table to the end away from the pressing table.

[0014] According to an embodiment of the present utility model, a limiting groove is formed by the pressing table extending axially along the circumferential side. The size of the limiting groove is adapted to the size of the pushing member, and the inner wall forming the limiting groove is used to limit the moving mode of the pushing member. The pressing table further forms at least one through port communicating with the limiting groove, and the forming position of each through port is close to the end of the pushing member connected to the elastic element, for the blocking block to be installed on the pushing member.

[0015] According to an embodiment of the present utility model, the size of each through port is set to be larger than the size of the blocking block. Description of the Drawings

[0016] Figure 1 The structural schematic diagram of the bearing press-fitting automatic release device according to the present utility model in a state is shown.

[0017] Figure 2 The structural schematic diagram of the bearing press-fitting automatic release device according to the present utility model in another state is shown.

[0018] Figure 3 is Figure 2 The partial structural enlarged view of the bearing press-fitting automatic release device shown.

[0019] Figure 4 The structural schematic diagram of the bearing press-fitting automatic release device according to the present utility model in yet another state is shown.

[0020] Figure 5 is Figure 4 The partial structural enlarged view of the bearing press-fitting automatic release device shown. Detailed Embodiments

[0021] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles defined in the following description can be applied to other implementation schemes, variation schemes, improvement schemes, equivalent schemes, and other technical schemes that do not depart from the spirit and scope of the present utility model.

[0022] Those skilled in the art should understand that in the disclosure of this utility model, the orientation or positional relationship indicated by terms such as "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0023] It can be understood that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in other embodiments, the number of this element can be multiple. The term "a" should not be construed as a limitation on the quantity.

[0024] Referring to Figures 1 to 5 , an automatic release device for bearing press-fitting according to a preferred embodiment of this utility model will be elaborated in detail hereinafter. The automatic release device for bearing press-fitting is used to clamp a bearing 80 and can press-fit the clamped bearing 80 into an inner hole of a housing 90. The automatic release device for bearing press-fitting includes a pressing table 10, a clamping assembly 20, and at least one release member 30.

[0025] The clamping assembly 20 is disposed on the pressing table 10, and the clamping assembly 20 can clamp the bearing 80. Specifically, the pressing table 10 can drive the clamped bearing 80 to be press-fitted into the inner hole of the housing 90. The release member 30 can release the bearing 80 clamped by the clamping assembly 20, so that after the bearing 80 is press-fitted into the inner hole of the housing 90, the bearing 80 will not be affected by the pressing table 10 that detaches from the housing 90 and be taken away from the housing 90, thereby completing the press-fitting operation of pressing the bearing 80 into the inner hole of the housing 90.

[0026] The clamping assembly 20 includes at least one elastic element 21, a guide post 22, an acting member 23, and a pressing member 24. One end of each elastic element 21 is connected to the pressing table 10, and the end of each elastic element 21 away from the pressing table 10 is connected to the pressing member 24. The guide post 22 is installed at the bottom of the pressing table 10, and the end of the guide post 22 away from the pressing table 10 extends integrally outward in the radial direction to form a first step 221. The acting member 23 is installed on the guide post 22 and abuts against the first step 221, and the acting member 23 is held below the pressing member 24. The pressing member 24 is movably connected to the guide post 22, and the pressing member 24 can be acted on by the elastic element 21 to approach and act on the acting member 23 located on the guide post 22, so that the bearing 80 can be clamped.

[0027] It can be understood that when the elastic element 21 acts on the pressing member 24, the pressing member 24 is acted on to move along the axial direction of the guide post 22 to approach and act on the acting member 23. At this time, the acting member 23 deforms and abuts against the wall of the bearing 80 to generate a binding force, so that the bearing 80 is clamped at the position of the first step 221 of the guide post 22.

[0028] In one embodiment, the number of the elastic elements 21 is set to two, and the two elastic elements 21 are symmetrically arranged between the pressing table 10 and the pressing member 24. It should be noted that when the number of the elastic elements 21 increases, the acting force on the pressing member 24 increases, so that the binding force generated between the acting member 23 and the bearing 80 increases, so that the bearing 80 is clamped more stably.

[0029] Preferably, a second step 222 is integrally formed on the guide post 22 extending outward in the radial direction near the first step 221. The cross-sectional diameter of the second step 222 is smaller than the cross-sectional diameter of the first step 221, and the distance between the second step 222 and the pressing member 24 is smaller than the distance between the first step 221 and the pressing member 24. Correspondingly, the pressing member 24 extends toward the second step 222 to form an abutting portion 241. The abutting portion 241 can abut against the second step 222 when the elastic element 21 acts on the pressing member 24, so as to limit the axial movement distance of the pressing member 24 on the guide post 22.

[0030] It should be noted that when the second step 222 of the guide post 22 abuts against the abutting portion 241 of the pressing member 24, the axial movement distance of the pressing member 24 on the guide post 22 is restricted, so that the pressing member 24 acts on the acting member 23 to make the deformation degree of the acting member 23 controllable. Therefore, the acting member 23 is not easily damaged due to excessive deformation, thus affecting the clamping operation of the bearing 80.

[0031] Preferably, the guide post 22 and the pressing member 24 are coaxially arranged, and the pressing member 24 is connected to the guide post 22 in an interference fit manner to restrict the movement mode of the pressing member 24.

[0032] Preferably, the pressing member 24 forms a fitting portion 242 in the direction close to the clamped bearing 80. The fitting portion 242 can be fitted with the outer wall of the bearing 80 when the pressing member 24 acts on the acting member 23, so that the bearing 80 can be stably clamped.

[0033] Preferably, each elastic element 21 is implemented as a spring. The acting member 23 is implemented to include a flexible material, such as a rubber sealing ring.

[0034] Each release member 30 includes an elastic member 31, a blocking member 32, a fixing block 33 and a blocked block 34. The elastic member 31 is disposed between the blocking member 32 and the fixing block 33, and both end portions of the elastic member 31 respectively abut against the blocking member 32 and the fixing block 33. The blocking member 32 is movably connected to the elastic member 31 and the fixing block 33. The fixing block 33 is disposed at a predetermined height, and the fixing block 33 is spaced from the pressing member 24 by a predetermined distance. The blocked block 34 is installed on the side portion of the pressing member 24, and the blocked block 34 is held above the blocking member 32 at an interval from the blocking member 32, and the blocked block 34 can be driven and acted on by the blocking member 32 to move in a direction opposite to the pressing direction of the pressing table 10 when the pressing table 10 presses the bearing 80, so as to release the clamped bearing 80.

[0035] Those skilled in the art can understand that when the pressing table 10 drives the bearing 80 clamped by the clamping assembly 20 into the inner hole of the housing 90, the blocked block 34 mounted on the pressing member 24 is driven along the moving direction of the pressing table 10 and gradually abuts against the blocking member 32. Under the action of the elastic member 31, the blocking member 32 causes the blocked block 34 to drive the pressing member 24 to act on the elastic element 21. At this time, the pressing member 24 gradually approaches the pressing table 10 along the axial direction of the guiding column 22, and the pressing member 24 also gradually moves away from the acting member 23.

[0036] That is to say, when the acting member 23 is no longer acted on by the pressing member 24 and acts on the bearing 80, no bonding force is generated between the acting member 23 and the bearing 80 to clamp the bearing 80. In this way, when the pressing table 10 moves away from the housing 90, the blocking member 32 gradually returns to its original position under the action of the elastic member 31. Correspondingly, the blocked block 34 is still blocked by the blocking member 32 before the blocking member 32 returns to its original position, so that the pressing member 24 acts on the elastic element 21. At this time, since the acting member 23 is not acted on by the pressing member 24 and cannot generate a bonding force with the bearing 80 to drive the bearing 80, the bearing 80 will not be taken out of the inner hole of the housing 90, and the press-fitting operation of the bearing 80 is completed.

[0037] In addition, when the blocked block 34 moves into place, the blocking member 32 can also be acted on by the blocked block 34 and move between the elastic member 31 and the fixed block 33.

[0038] It is worth adding that when the blocked block 34 is spaced from the blocking member 32, the pressing member 24 is acted on by the elastic element 21 and gradually acts on the acting member 23. At this time, the clamping assembly 20 can clamp a new bearing 80.

[0039] In one embodiment, the number of the release members 30 is set to two, and the two release members 30 are evenly arranged on the circumferential side of the pressing member 24.

[0040] Preferably, a reduced-diameter portion 223 is formed at the end of the guiding column 22 near the first step 221, and the cross-sectional diameter of the reduced-diameter portion 223 gradually decreases from the end near the pressing table 10 to the end away from the pressing table 10, so as to facilitate guiding the pressing table 10 to press-fit the bearing 80 into the inner hole of the housing 90

[0041] Preferably, the elastic member 31 is implemented as a spring. The blocking member 32 is implemented as a retaining pin.

[0042] Preferably, a limiting groove 101 is formed on the peripheral side of the pressing table 10 and extends in the axial direction. The size of the limiting groove 101 is adapted to the size of the pushing member 24, and the inner wall forming the limiting groove 101 is used to limit the moving mode of the pushing member 24. In addition, at least one through hole 102 communicating with the limiting groove 101 is further formed on the pressing table 10. The forming position of each through hole 102 is close to the end of the pushing member 24 connected to the elastic element 21, so that the blocking block 34 is installed on the pushing member 24.

[0043] Preferably, the size of each through hole 102 is set to be larger than the size of the blocking block 34. It can be understood that when the pushing member 24 drives the blocking block 34 to move, the blocking block 34 can be driven a predetermined distance and then abuts against the inner wall forming the through hole 102, so that the moving distance of the blocking block 34 is limited. Thus, while controlling the force on the acting member 23, the force on the elastic element 21 can also be controlled, thereby preventing the acting member 23 and the elastic element 21 from being damaged due to excessive force.

[0044] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the drawings are only examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functions and structural principles of the present invention have been shown and described in the embodiments. Without departing from the principle, any deformation or modification of the embodiments of the present invention is possible.

Claims

1. An automatic release device for bearing press-fitting, which is used to clamp a bearing and can press-fit the clamped bearing into the inner hole of a housing, and is characterized in that, The automatic bearing press-fitting release device includes: A pressing table; A clamping assembly disposed on the pressing table in a manner capable of clamping the bearing; At least one release member, each release member including an elastic member, a blocking member, a fixed block, and a blocked block. The elastic member is disposed between the blocking member and the fixed block, and both end portions of the elastic member respectively abut against the blocking member and the fixed block. The blocking member is movably connected to the elastic member and the fixed block. The fixed block is disposed at a predetermined height and is spaced from the pressing member by a predetermined distance. The blocked block is disposed on the clamping assembly and is held above the blocking member in a manner spaced from the blocking member. And the blocked block is driven and acted upon by the blocking member to move in a direction opposite to the bearing press-fitting direction of the pressing table when the pressing table press-fits the bearing, thereby releasing the clamped bearing.

2. The bearing press-fitting automatic release device according to claim 1, characterized in that, The clamping assembly includes at least one elastic element, a guide post, an acting member, and a pressing member. One end portion of each elastic element is connected to the pressing table, and the end portion of each elastic element away from the pressing table is connected to the pressing member. The guide post is installed at the bottom of the pressing table, and the end portion of the guide post away from the pressing table extends integrally outward in the radial direction to form a first step. The acting member is installed on the guide post and abuts against the first step, and the acting member is held below the pressing member. The blocked block of the release member is installed on the side portion of the pressing member. The pressing member is movably connected to the guide post, and the pressing member can be acted upon by the elastic element to approach and act on the acting member located on the guide post.

3. The automatic release device for bearing press-fitting according to claim 2, wherein, The number of the elastic elements is set to two, and the two elastic elements are symmetrically arranged between the pressing table and the pressing member.

4. The automatic release device for bearing press-fitting according to claim 2, wherein The guide post extends integrally outward in the radial direction at a position near the first step to form a second step. The cross-sectional diameter of the second step is smaller than that of the first step, and the distance between the second step and the pressing member is smaller than the distance between the first step and the pressing member. The pressing member extends toward the second step to form an abutting portion, and the abutting portion can abut against the second step when the elastic element acts on the pressing member.

5. The automatic release device for bearing press-fitting according to claim 4, wherein, The guide post and the pressing member are coaxially arranged, and the pressing member is connected to the guide post in an interference fit manner.

6. The automatic release device for bearing press-fitting according to claim 5, characterized in that, The pressing member forms a fitting portion toward the direction of the clamped bearing, and the fitting portion can fit against the outer wall of the bearing when the pressing member acts on the acting member.

7. The automatic release device for bearing press-fitting according to claim 6, wherein, The number of the release members is set to two, and the two release members are evenly arranged at the circumferential position of the pressing member.

8. The automatic release device for bearing press-fitting according to claim 7, wherein, The guide post forms a reduced-diameter portion at the end near the first step, and the cross-sectional diameter of the reduced-diameter portion gradually decreases from the end near the pressing table to the end away from the pressing table.

9. The automatic release device for bearing press-fitting according to claim 8, characterized in that, The pressing table extends along the axial direction on the peripheral side to form a limiting groove. The size of the limiting groove is adapted to the size of the pushing member, and the inner wall forming the limiting groove is used to limit the movement mode of the pushing member. The pressing table further forms at least one through port communicating with the limiting groove. The forming position of each through port is close to the end of the pushing member connected to the elastic element, for installing the blocking block on the pushing member.

10. The bearing press-fitting automatic release device according to claim 9, characterized in that, The size of each through port is set to be larger than the size of the blocking block.

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