Planet shaft assembling device

Through the alignment detection and stop coordination of the guide hole and shaft assembly hole of the planetary shaft assembly device, the alignment deviation problem during planetary shaft assembly is solved, the precise assembly and damage avoidance of the planetary shaft are achieved, and the assembly quality is improved.

CN223178112UActive Publication Date: 2025-08-01ZF TRANSMISSIONS SHANGHAI
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Patent Information

Application Number
CN202422639490.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-30
Publication Date
2025-08-01
Estimated Expiration
2034-10-30

AI Technical Summary

Technical Problem

In the prior art, the alignment degree of the shaft assembly hole and the guide hole of the planet carrier cannot be guaranteed when aligning the shaft, resulting in easy damage during assembly and affecting the assembly quality.

Method used

A planetary shaft assembly device is provided, including a carrier seat, a guide member and a pressure plug. Through the alignment detection and stop fit of the guide hole and the shaft assembly hole, the accurate assembly of the planetary shaft is ensured, and the positioning member and observation hole are used to ensure the position and orientation of the planetary shaft after assembly.

Benefits of technology

It effectively avoids damage caused by alignment deviation of the planetary axis, ensures the coaxiality and position accuracy of the planetary axis after assembly, and improves assembly quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The planet shaft assembling device comprises a bearing seat, a guiding piece and a pressing-inserting piece. Wherein the bearing seat forms a bearing area for bearing the planet carrier, and the planet carrier is provided with a shaft assembling hole. The guide piece is arranged on the bearing seat, and a guide hole which can be communicated with the shaft assembling hole and allows the planet shaft to penetrate through is formed. The pressing and inserting piece is arranged in the guide hole in a pluggable mode to press the planet shaft downwards and can penetrate through the guide hole to be inserted into the shaft assembling hole in a matched mode. According to the planet shaft assembling device, alignment of the guide hole of the guide piece and the shaft assembling hole can be guaranteed, and planet shaft damage caused by alignment deviation is avoided.
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Description

Technical Field

[0001] The present disclosure relates to the technical field of planet carrier assembly, and particularly to a planetary shaft assembly device. Background Art

[0002] In the related art, when assembling a planetary shaft on a planet carrier, the planetary shaft is press-fitted into a shaft assembly hole through a guiding hole of a guiding member. However, when aligning the shaft assembly hole of the planet carrier with the guiding hole, the alignment degree between the two is often observed by the naked eye, and the alignment degree between the two cannot be guaranteed. As a result, there is often a large deviation between the axis of the guiding hole and the axis of the shaft assembly hole, which causes the planetary shaft to be easily squeezed and damaged when passing through the guiding hole and being assembled into the shaft assembly hole, affecting the assembly quality of the planetary shaft. Summary of the Invention

[0003] In view of the above-mentioned disadvantages of the prior art, the purpose of the present disclosure is to provide a planetary shaft assembly device, which is beneficial to ensuring the alignment of the guiding hole of the guiding member and the shaft assembly hole, and avoiding damage to the planetary shaft caused by alignment deviation.

[0004] The planetary shaft assembly device provided by the present disclosure includes: a bearing seat, forming a bearing area for bearing the planet carrier, and the planet carrier has a shaft assembly hole; a guiding member, arranged on the bearing seat, and forming a guiding hole that can communicate with the shaft assembly hole and through which the planetary shaft passes; and a pressing and plugging member, detachably arranged in the guiding hole to press down the planetary shaft, and passing through the guiding hole to be plugged and matched in the shaft assembly hole.

[0005] According to some embodiments provided by the present disclosure, the pressing and plugging member is provided for clearance fit in the guiding hole.

[0006] According to some embodiments provided by the present disclosure, the pressing and plugging member is provided with a stopping portion for stopping and cooperating with the guiding member.

[0007] According to some embodiments provided by the present disclosure, the stopping portion is detachably arranged on the pressing and plugging member.

[0008] According to some embodiments provided by the present disclosure, at least one observation hole communicating with the guiding hole is formed on the outer side wall of the guiding member.

[0009] According to some embodiments provided by the present disclosure, the orientation of the observation hole is configured to be consistent with the assembly orientation of the side opening of the planetary shaft.

[0010] According to some embodiments provided by the present disclosure, the guiding member forms at least one mounting hole, and the mounting hole extends along the radial direction of the guiding member and communicates with the guiding hole;

[0011] The planetary shaft assembly device further includes: at least one positioning member, which is disposed in the mounting hole in a radially telescopic manner so as to be able to position the planetary shaft extending into the side opening of the planetary shaft when extended.

[0012] According to some embodiments provided by the present disclosure, the guiding hole and the shaft assembly hole are coaxially conducted; there are at least two positioning members, and at least two of the positioning members are symmetrically arranged about the axis of the guiding hole.

[0013] According to some embodiments provided by the present disclosure, the positioning member includes: a positioning housing, which is disposed in the mounting hole and forms a positioning extension opening; a positioning head, which is disposed in the positioning housing in a telescopic manner in the positioning extension opening; and a positioning elastic member, which is disposed between the inner wall of the housing and the positioning head to provide an elastic force for the positioning head to extend out of the positioning extension opening.

[0014] According to some embodiments provided by the present disclosure, it further includes: an assembly frame, which includes: a pressing member that is spaced above the bearing seat and can press the planetary carrier.

[0015] Beneficial effects:

[0016] (1) The planetary shaft assembly device of the present disclosure is beneficial to ensuring the alignment of the guiding hole of the guiding member and the shaft assembly hole, and avoiding damage to the planetary shaft caused by alignment deviation.

[0017] (2) For the planetary shaft assembly device of the present disclosure, the axial position after the planetary shaft is assembled can be ensured.

[0018] (3) For the planetary shaft assembly device of the present disclosure, the orientation of the side opening after the planetary shaft is assembled can be ensured.

[0019] (4) For the planetary shaft assembly device of the present disclosure, the coaxiality between the axis of the planetary shaft and the axis of the shaft assembly hole can be ensured. Description of the drawings

[0020] Figure 1 is a schematic structural diagram of a planetary carrier according to an embodiment of the present disclosure.

[0021] Figure 2 is a schematic diagram when the planetary shaft assembly device according to an embodiment of the present disclosure is assembled.

[0022] Figure 3 is Figure 2 a cross-sectional view of

[0023] Figure 4 is a cross-sectional schematic diagram of a guiding member and a planetary shaft according to an embodiment of the present disclosure.

[0024] Figure 5 is a cross-sectional schematic diagram of a positioning member according to an embodiment of the present disclosure.

[0025] Reference numerals:

[0026] 10. Carrier seat; 11. Assembly frame; 111. Pressing member; 112. First support member; 113. Second support member; 101. Loading area

[0027] 20. Pressing and inserting member; 21. Stopping portion

[0028] 30. Guide member; 301. Guide hole; 302. Observation hole; 303. Mounting hole

[0029] 40. Positioning member; 41. Positioning housing; 4101. Positioning extending opening; 42. Positioning head; 43. Positioning elastic member

[0030] 91. Planet carrier; 92. Planet gear; 903. Shaft assembly hole; 94. Planet shaft; 9401. Side opening Detailed implementation manners

[0031] The following uses specific specific examples to illustrate the implementation manners of the present disclosure. Those skilled in the art can easily understand other advantages and effects of the present disclosure from the information disclosed in the present disclosure. The present disclosure can also be implemented or applied through other different specific implementation manners. Various details in the present disclosure can also be modified or changed according to different viewpoints and application scenarios without departing from the spirit of the present disclosure. It should be noted that, without conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0032] The following takes the drawings as a reference and details the embodiments of the present disclosure so that those skilled in the art to which the present disclosure pertains can easily implement it. The present disclosure can be embodied in many different forms and is not limited to the embodiments described herein.

[0033] In the description of the present disclosure, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc., mean that the specific features, structures, materials, or characteristics represented in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. Moreover, the specific features, structures, materials, or characteristics represented can be combined in any one or a group of embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples represented in the present disclosure and the features of the different embodiments or examples.

[0034] In addition, the terms "first" and "second" are used for illustrative purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the representations of the present disclosure, the meaning of "a group" is two or more, unless otherwise specifically defined.

[0035] To clearly illustrate the present disclosure, devices irrelevant to the description are omitted, and the same or similar components throughout the specification are given the same reference signs.

[0036] Throughout the specification, when it is said that a device is "connected" to another device, this includes not only the case of "direct connection", but also the case of "indirect connection" with other elements interposed therebetween. In addition, when it is said that a certain device "includes" a certain component, unless there is a particularly contrary record, it does not exclude other components, but means that other components may also be included.

[0037] Although in some examples the terms first, second, etc. are used herein to denote various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, the first interface and the second interface, etc. are indicated. Furthermore, as used herein, the singular forms "a", "an" and "the" are also intended to include the plural forms unless the context indicates otherwise. It should be further understood that the terms "comprising", "including" indicate the presence of the stated features, steps, operations, elements, modules, items, kinds, and / or groups, but do not preclude the presence, occurrence or addition of one or a group of other features, steps, operations, elements, modules, items, kinds, and / or groups. The term "or" and "and / or" used herein are construed as inclusive, or meaning any one or any combination. Thus, "A, B or C" or "A, B and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A, B and C". An exception to this definition occurs only when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way.

[0038] The technical terms used herein are only for referring to specific embodiments and are not intended to limit the present disclosure. The singular forms used herein also include the plural forms as long as the statements do not explicitly indicate the contrary meaning. The meaning of "including" used in the specification is to embody specific characteristics, regions, integers, steps, operations, elements and / or components, and does not exclude the existence or addition of other characteristics, regions, integers, steps, operations, elements and / or components.

[0039] Although not defined differently, including technical terms and scientific terms used herein, all terms have the same meaning as generally understood by those skilled in the technical field to which the present disclosure pertains. Terms defined in commonly used dictionaries are additionally interpreted to have meanings consistent with relevant technical literature and the currently presented message. Unless otherwise defined, they shall not be over-interpreted as ideal or overly formulaic meanings.

[0040] Figure 1 It is a schematic structural diagram of the planet carrier 91 according to an embodiment of the present disclosure. Refer to Figure 1 , a planetary gear 92 is installed inside the planet carrier 91. A vertically extending shaft assembly hole 903 is provided inside the planetary gear 92. Thus, after the planetary shaft 94 is assembled into the planetary gear 92, the planetary gear 92 can rotate around the planetary shaft 94. The planetary shaft 94 serves as the rotating shaft for the rotation of the planetary gear 92, can support the stable rotation of the planetary gear 92, and prevent the planetary gear 92 from displacing or wobbling during rotation, thereby ensuring the stable rotation of the planetary gear 92.

[0041] In the related art, when assembling the planetary shaft 94 inside the planet carrier 91, the planetary shaft 94 is press-fitted into the shaft assembly hole 903 through the guiding hole of the guiding member. However, when aligning the shaft assembly hole 903 of the planet carrier 91 with the guiding hole, the alignment degree between the two is often observed by the naked eye, and the alignment degree between the two cannot be guaranteed, resulting in a large deviation between the axis of the guiding hole and the axis of the shaft assembly hole 903. As a result, when the planetary shaft 94 passes through the guiding hole and is assembled into the shaft assembly hole 904, it is easily squeezed and damaged, affecting the assembly quality of the planetary shaft 94.

[0042] In view of this, the present disclosure provides a planetary shaft assembly device, which can assemble the planetary shaft 94 into the shaft assembly hole 903, and is beneficial to ensuring the alignment of the guiding hole of the guiding member and the shaft assembly hole, and avoiding damage to the planetary shaft 94 caused by alignment deviation.

[0043] Figure 2 It is a schematic diagram when the planetary shaft assembly device according to an embodiment of the present disclosure is being assembled. Figure 3 It is Figure 2 a cross-sectional view of Figure 2 and Figure 3 , the planetary shaft assembly device according to an embodiment of the present disclosure includes a carrier seat 10, a press-fitting member 20, and a guiding member 30.

[0044] The carrier seat 10 forms a bearing area 101 for bearing the planet carrier 91, and the planet carrier 91 has a vertically extending shaft assembly hole 903. It can be understood that the planet carrier 91 that can be assembled in the embodiment of the present disclosure can be as shown in s Figure 1 or can be the same as that in Figure 1The structure of the planet carrier 91 shown is different, and the planet carrier 91 having the vertically extending shaft assembly hole 903 is within the protection scope of the present disclosure.

[0045] Optionally, an assembly frame 11 is provided on the bearing seat 10. The assembly frame 11 includes a pressing member 111 that is spaced above the bearing seat 10 and can press the planet carrier 91. Thus, when the planet carrier 91 is carried by the bearing seat 10, the pressing member 111 can press the planet carrier 91, so that when the planet shaft 94 is assembled to the planet carrier 91, the planet carrier 91 can be relatively fixed and is difficult to displace and shake.

[0046] Optionally, the assembly frame 11 further includes a first support member 112 and a second support member 113. One of the first support member 112 and the second support member 113 is located within the bearing area 101, and the other is located outside the bearing area 101. The pressing member 111 is detachably mounted on the upper ends of the first support member 112 and the second support member 113. Specifically, the pressing member 111 can be mounted on the upper ends of the first support member 112 and the second support member 113 by two screws. Thus, before the pressing member 111 is mounted to the first support member 112 and the second support member 113, the planet carrier 91 can be first placed on the bearing seat 10 and carried by the bearing seat 10. Then the pressing member 111 is mounted on the upper ends of the first support member 112 and the second support member 113, thereby realizing the pressing of the pressing member 111 on the planet carrier 91.

[0047] The guiding member 30 is provided on the bearing seat 10 and forms a guiding hole 301 that can communicate with the shaft assembly hole 903 and through which the planet shaft 94 passes. Thus, during the process of assembling the planet shaft 94 into the shaft assembly hole 903, the planet shaft 94 can be first pre-assembled into the guiding hole 301, and then assembled into the shaft assembly hole 903 under the guiding and limiting action of the guiding hole 301.

[0048] The pressing and plugging member 20 is pluggably provided in the guiding hole 301 to press down the planet shaft 94 and is configured to be plugged and matched in the shaft assembly hole 903 through the guiding hole 301.

[0049] It is understood that the planetary shaft 94 and the shaft assembly hole 903 are formed in an interference fit. If the alignment deviation between the guide hole 301 and the shaft assembly hole 903 is large when the two are connected, and the deviation between the two axes is large, the planetary shaft 94 will have difficulty squeezing into the shaft assembly hole 903 when assembled into the shaft assembly hole 903 through the guide hole 301, and the planetary shaft 94 may be easily squeezed and damaged when assembled into the shaft assembly hole 903. Therefore, before assembling the planetary shaft 94, it is necessary to first check the alignment accuracy between the guide hole 301 and the shaft assembly hole 903.

[0050] Therefore, before the planetary shaft 94 is assembled into the guide hole 301, the press-fitting insert 20 can be inserted through the guide hole 301 into the shaft assembly hole 903. If the press-fitting insert 20 can be smoothly inserted into the shaft assembly hole 903, it indicates that the alignment accuracy between the guide hole 301 and the shaft assembly hole 903 meets the requirements. If the press-fitting insert 20 has difficulty being smoothly inserted into the shaft assembly hole 903, it indicates that the alignment accuracy between the guide hole 301 and the shaft assembly hole 903 does not meet the requirements. Therefore, the positions of the guide member 30 and the planetary carrier 91 can be readjusted until both can be smoothly inserted by the press-fitting insert 20. Therefore, by configuring the press-fitting insert 20 in the above-described structure, the press-fitting insert 20 can detect the alignment accuracy between the guide hole 301 and the shaft assembly hole 903, ensuring that the two are fully aligned before installing the planetary shaft 94.

[0051] Therefore, after ensuring that the guide hole 301 of the guide member 30 is fully aligned with the shaft assembly hole 903, the press-fit plug 20 can be pulled out of the guide hole 301 again, and inserted into the guide hole 301 again after the planetary shaft 94 is placed in the guide hole 301, thereby pressing down the planetary shaft 94 and pressing the planetary shaft 94 from the guide hole 301 into the shaft assembly hole 903.

[0052] Optionally, the press-fitting component 20 is provided with clearance fit in the guide hole 301. Thus, the press-fitting component 20 is unlikely to be damaged when plugged into the guide hole 301.

[0053] Optionally, the press-fitting insert 20 is provided with a stopper 21 for engaging with the guide member 30. Thus, when the press-fitting insert 20 drives the planetary shaft 94 downward, allowing the planetary shaft 94 to be smoothly inserted into the shaft assembly hole 903, and when the stopper 21 of the press-fitting insert 20 is stopped by the guide member 30, the planetary shaft 94 is press-fitted into place. Thus, by providing the stopper 21 and the guide member 30, which engage and stop, the axial position of the planetary shaft 94 after assembly can be maintained.

[0054] Optionally, the stopper 21 is detachably provided on the pressing plug-in member 20. The guiding member 30 is detachably connected to the bearing seat 10. Specifically, the guiding member 30 is detachably connected to the mounting frame 11. Thus, when the stopper 21 and the guiding member 30 are damaged after multiple stopper fittings, the guiding member 30 and the stopper 21 are convenient to replace.

[0055] Figure 4 It is a cross-sectional view schematic diagram of the guiding member 30 and the planetary shaft 94 according to an embodiment of the present disclosure. Refer to Figure 3 and Figure 4 , at least one observation hole 302 communicating with the guiding hole 301 is formed on the outer side wall of the guiding member 30. Thus, when the planetary shaft 94 is assembled into the guiding hole 301, a user can observe and adjust the initial assembling state of the planetary shaft 94 through the observation hole 302, which is beneficial to ensuring the assembling state of the planetary shaft 94 entering the shaft assembling hole 903.

[0056] Optionally, the orientation of the observation hole 302 is consistent with the assembling orientation of the side opening 9401 of the planetary shaft 94. Thus, when the planetary shaft 94 is installed into the guiding hole 301, the planetary shaft 94 can be assembled in the guiding hole 301 in such a way that the side opening 9401 of the planetary shaft 94 communicates with the observation hole 302, which is beneficial to ensuring that after the planetary shaft 94 is assembled, the side opening 9401 of the planetary shaft 94 can face a predetermined assembling orientation.

[0057] Specifically as an example, when the side opening 9401 of the planetary shaft 94 faces left after predetermined assembling, the observation hole 302 is configured to face left. Thus, when the planetary shaft 94 is installed into the guiding hole 301, through the observation of the observation hole 201 and the adjustment of the orientation of the side opening 9401 of the planetary shaft 94 after the observation, the planetary shaft 94 can be assembled in the guiding hole 301 in such a way that the side opening 9401 is aligned and communicated with the observation hole 302 on the left, that is, when the planetary shaft 94 is installed in the guiding hole 301, the side opening 9401 of the planetary shaft 94 also faces left. Thus, when the planetary shaft 94 is assembled into the shaft assembling hole 903 in the direction from top to bottom, the side opening 9401 of the planetary shaft 94 after assembling also faces left, and the orientation of the side opening 9401 of the planetary shaft 94 after assembling is consistent with the predetermined assembling orientation.

[0058] Correspondingly, when the side opening 9401 of the planetary shaft 94 faces right after the predetermined assembly, the observation hole 302 is configured to face right. Thus, when the planetary shaft 94 is installed into the guiding hole 301, through the observation via the observation hole 201 and the adjustment of the orientation of the side opening 9401 of the planetary shaft 94 after the observation, the planetary shaft 94 can be assembled in the guiding hole 301 in such a manner that the side opening 9401 is aligned and communicated with the observation hole 302 on the right side, that is, when the planetary shaft 94 is installed in the guiding hole 301, the side opening 9401 of the planetary shaft 94 also faces right. Thus, when the planetary shaft 94 is assembled into the shaft assembly hole 903 in the direction from top to bottom, the side opening 9401 of the planetary shaft 94 after assembly also faces right, and the orientation of the side opening 9401 of the planetary shaft 94 after assembly is consistent with the predetermined assembly orientation.

[0059] Optionally, the guiding member 30 forms at least one mounting hole 303. The mounting hole 303 extends radially along the guiding member 30 and is communicated with the guiding hole 301, and the mounting hole 303 and the observation hole 303 are the same hole or different holes. That is to say, the mounting hole 303 can be the observation hole 302, or the mounting hole 303 can also be another hole independently provided from the observation hole 302, such as a hole provided below the observation hole 302.

[0060] The planetary shaft assembling device further includes at least one positioning member 40. The positioning member 40 is disposed in the mounting hole 203 in a radially telescopic manner so as to extend into the side opening 9401 when extended, for positioning the planetary shaft 94.

[0061] Thus, when the planetary shaft 94 is installed in the guiding hole 301, the positioning member 31 is in an extended state and extends into the side opening 9401 of the planetary shaft 94, thereby positioning the planetary shaft 94. When the planetary shaft 94 needs to be assembled into the shaft assembly hole 903, the positioning member 31 is in a retracted state and disengages from the side opening 9401 of the planetary shaft 94, thus facilitating the subsequent press-fitting of the planetary shaft 94 into the shaft assembly hole 903.

[0062] Optionally, the guiding hole 301 and the shaft assembly hole 903 are coaxially communicated. There are at least two positioning members 31, and at least two positioning members 31 are symmetrically arranged about the axis of the guiding hole 301.

[0063] Thus, when the planetary shaft 94 is installed inside the guiding hole 301, at least two of the positioning members 31 can position the planetary shaft 94 from the symmetric two sides of the planetary shaft 94 respectively, so as to make the axis of the planetary shaft 94 in the central position, make the axis of the planetary shaft 94 able to be aligned with the axes of the guiding hole 301 and the shaft assembly hole 903, and thus when the planetary shaft 94 is assembled into the shaft assembly hole 903, the axis of the planetary shaft 94 can be aligned with the axis of the shaft assembly hole 903, which is beneficial to ensuring that the axis of the planetary shaft 94 coincides with the shaft assembly hole 903 after assembly.

[0064] Figure 5 is a cross-sectional schematic view of the positioning member 31 of the embodiment of the present disclosure. Referring to FIGS. 4 and Figure 5 , the positioning member 31 includes a positioning housing 41, a positioning head 42 and a positioning elastic member 43.

[0065] Wherein, the positioning housing 41 is arranged in the mounting hole 303, and the positioning housing 41 is formed with a positioning extension port 4101. Optionally, the positioning housing 41 can be in threaded fit in the mounting hole 303. Thus, the positioning member 31 is convenient to install and disassemble.

[0066] The positioning head 42 is telescopically arranged in the positioning housing 41 through the positioning extension port 4101. The positioning elastic member 43 is arranged between the inner wall of the positioning housing 41 and the positioning head 42 to provide an elastic force for the positioning head 42 to extend out of the positioning extension port 4101. Specifically, the positioning elastic member 43 can be a spring or an elastic member such as a strip-shaped elastic body.

[0067] Thus, when the planetary shaft 94 is located in the guiding hole 301, the positioning head 42 will extend out of the positioning extension port 4101 and extend into the side opening 9401 of the planetary shaft 94. When the planetary shaft 94 is driven downward, with the downward movement of the planetary shaft 94, the positioning head 42 will contract from the positioning extension port 4101 towards the inside of the positioning housing 41 under the pressure of the outer wall of the planetary shaft 94, so as to disengage from the side opening 9401 of the planetary shaft 94, and further enable the planetary shaft 94 to be smoothly moved downward and assembled into the shaft assembly hole 903.

[0068] The above embodiments only illustratively explain the principle and its effects of the present disclosure, rather than limiting the present disclosure. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present disclosure. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present disclosure should still be covered by the protection scope of the present disclosure.

Claims

1. Planetary shaft assembly device, characterized in that, Comprising: A carrier seat, forming a bearing area for bearing a planet carrier, and the planet carrier has a shaft assembly hole; A guide member, provided on the carrier seat, and forming a guide hole that can communicate with the shaft assembly hole and through which the planet shaft passes; and A press-fitting member, which is detachably provided in the guide hole to press down the planet shaft, and is inserted through the guide hole and fitted in the shaft assembly hole.

2. The planetary shaft assembly device according to claim 1, characterized in that The press-fitting member is provided with a clearance fit in the guide hole.

3. The planetary shaft assembly device according to claim 1, wherein, The press-fitting member is provided with a stop portion for stop cooperation with the guide member.

4. The planetary shaft assembly device according to claim 3, characterized in that, The stop portion is detachably provided on the press-fitting member.

5. The planetary shaft assembly device according to claim 1, characterized in that, At least one observation hole communicating with the guide hole is formed on the outer side wall of the guide member.

6. The planetary shaft assembly device according to claim 5, characterized in that, The orientation of the observation hole is configured to be consistent with the assembly orientation of the side opening of the planet shaft.

7. The planetary shaft assembly device according to claim 1, characterized in that The guide member forms at least one mounting hole, and the mounting hole extends along the radial direction of the guide member and communicates with the guide hole; The planet shaft assembly device further includes: at least one positioning member, which is provided in the mounting hole in a radially telescopic manner, so as to be able to position the planet shaft when extended and extend into the side opening of the planet shaft.

8. The planetary shaft assembly device according to claim 7, characterized in that, The guide hole and the shaft assembly hole are coaxially communicated; There are at least two positioning members, and at least two of the positioning members are symmetrically arranged about the axis of the guide hole.

9. The planetary shaft assembly device according to claim 7, characterized in that, The positioning member includes: A positioning housing, provided in the mounting hole and having a positioning extension port formed thereon; A positioning head, which is provided in the positioning housing in a telescopic manner in the positioning extension port; and A positioning elastic member, provided between the inner wall of the housing and the positioning head to provide an elastic force for the positioning head to extend out of the positioning extension port.

10. The planetary shaft assembly device according to claim 1, characterized in that, Further comprising: An assembly frame, including: a pressing frame member spaced above the carrier seat and capable of pressing the planet carrier.