One-way clutch assembling device

By designing the limit structure of the top block and clamping frame, the problems of cage and roller series movement and position deviation in the assembly of the one-way clutch of the starter generator are solved, and the accurate installation and efficient assembly of the components are achieved.

CN222176590UActive Publication Date: 2024-12-17WUHAN QINLING LINKCO AVIATION POWER SYST CO LTD
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Patent Information

Application Number
CN202323568760.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-25
Publication Date
2024-12-17
Estimated Expiration
2033-12-25

AI Technical Summary

Technical Problem

The existing one-way clutch assembly method of starting generators cannot effectively limit the cage and roller rod, resulting in easy series movement and position deviation during assembly, affecting assembly quality and efficiency.

Method used

A one-way clutch assembly device is designed, including a top block and a clamping frame. Through the limiting projection and embedded part structure, the cage and roller rod do not move in series during assembly and are carried out through the guide hole and insertion part. Accurate positioning to prevent position deviation.

Benefits of technology

It effectively prevents the cage and roller from moving and falling in the assembly process, ensures the accurate installation position of the components, reduces rework, and improves assembly efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a one-way clutch assembling device which comprises an ejector block and a clamping frame, one end of the ejector block is used for being inserted into one end of a hollow shaft, a guide hole is formed in the ejector block, a limiting protrusion is formed on the side wall of the ejector block, the clamping frame comprises an insertion portion and an external portion, the insertion portion is used for being inserted into the guide hole, and the external portion is used for being inserted into the guide hole. The inserting part is used for being sleeved with a retainer. The technical scheme provided by the utility model has the beneficial effects that the retainer is blocked by the ejector block, the retainer and the rolling rod do not move in the assembly process, the rolling rod does not fall off, and the quality risk is eliminated; and meanwhile, by arranging the limiting protrusions, the depth of the portion, inserted into the hollow shaft, of the retainer can be positioned, and the situation that due to position deviation, subsequent bearings and linings cannot be assembled and need to be reassembled, and the working efficiency is affected is prevented.
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Description

Technical Field

[0001] The utility model relates to the technical field of clutch assembly, in particular to a one-way clutch assembly device. Background Art

[0002] The DC starter generator is an important accessory of the DC power supply system of a certain type of aircraft. It acts as a starter to start the engine and as a generator to supply DC power to the network on the aircraft. Figure 1 As shown, the starter generator one-way clutch 100 is installed inside the hollow shaft of the generator rotor, and is composed of a special profile of a flexible shaft 110, a roller 120, a retainer 130 and other components. A special profile that matches the roller 120 is formed on the outer wall of the flexible shaft 110. When the starter generator is in the starting state, the armature is driven to rotate by an external power source. At this time, the special profile of the flexible shaft 110 and the roller 120 are in a slipping state, and the armature drives the reducer and then drives the flexible shaft 110 to rotate, thereby achieving the purpose of deceleration; when the starter generator is in the power generation state, the engine drives the flexible shaft 110 to rotate. At this time, the special profile of the flexible shaft 110 and the roller 120 are in a tight state, and the flexible shaft drives the armature to rotate 1:1, thereby playing the role of a one-way clutch.

[0003] like Figure 1 As shown, the existing assembly method of the starter generator one-way clutch 100 is as follows: insert a metal cylinder into the center hole of the retaining frame 130, insert the metal cylinder, the roller 120, and the retaining frame 130 into one end of the hollow shaft 140, and then insert the soft shaft 110 into the other end of the hollow shaft 140. During the process of pushing the soft shaft 110, when the soft shaft 110 contacts the metal cylinder, the metal cylinder can be ejected until the metal cylinder is completely ejected. At this time, the head end 111 of the soft shaft 110 extends out from the center hole of the retaining frame 130, and then the nut 150 is screwed into the head end 111 of the soft shaft 110 to lock the soft shaft 110 to prevent the soft shaft 110 from retracting, thereby completing the assembly of the starter generator one-way clutch 100.

[0004] This assembly technology has the following disadvantages and shortcomings:

[0005] (1) This method cannot limit the position of the retainer 130 and the roller 120 during assembly. When the flexible shaft 110 is pushed in, the flexible shaft 110 is likely to contact the retainer 130 and the roller 120, causing the retainer 130 to move inside the hollow shaft 140. During assembly, the roller 120 is likely to fall off due to the movement of the retainer 130. After assembly, it is difficult to detect the roller 120 inside the hollow shaft 140, causing assembly quality risks.

[0006] (2) The installation position of the one-way clutch assembly in the hollow shaft 140 cannot be guaranteed to be accurate. The position deviation of the one-way clutch assembly after assembly causes the subsequent bearings and bushings to be unable to be assembled, requiring rework and reassembly, which affects work efficiency. Utility Model Content

[0007] In view of this, it is necessary to provide a one-way clutch assembly device to solve the technical problems that the existing assembly process of the starter generator one-way clutch easily causes the retaining frame to move inside the hollow shaft, the roller rod to fall off, and the installation position accuracy cannot be guaranteed.

[0008] In order to achieve the above-mentioned purpose, the utility model provides a one-way clutch assembly device, including a top block and a clamping frame, one end of the top block is used to insert one end of a hollow shaft, a guide hole is formed in the top block, and a limiting protrusion is formed on the side wall of the top block. The clamping frame includes an insertion part and an external part, the insertion part is used to insert into the guide hole, and the insertion part is used to sleeve a retaining frame.

[0009] In some embodiments, a receiving hole is formed at one end of the insertion portion, and the receiving hole is used to accommodate the head end of the flexible shaft.

[0010] In some embodiments, the aperture of the receiving hole is larger than the diameter of the head end of the flexible shaft, and the aperture of the receiving hole is smaller than the aperture of the flexible shaft.

[0011] In some embodiments, the external portion includes a blocking portion and a handle, one end of the blocking portion is fixed to the insertion portion and is used to abut against the top block, and the handle is fixed to the other end of the blocking portion.

[0012] In some embodiments, the size of the blocking portion is larger than the diameter of the guide hole.

[0013] In some embodiments, the handle is smaller than the blocking portion.

[0014] In some embodiments, a limiting step is formed inside the hollow shaft, the portion of the hollow shaft located inside the limiting step forms a first socket, the portion of the hollow shaft located outside the limiting step forms a second socket, an embedding portion is formed at the end of the top block, the embedding portion is used to embed into the first socket, and the top block is used to embed into the second socket.

[0015] In some embodiments, when the limiting protrusion abuts against one end of the hollow shaft, the top block abuts against the limiting step.

[0016] In some embodiments, an outer diameter of the embedding portion is equal to an inner diameter of the first insertion hole.

[0017] In some embodiments, the outer diameter of the top block is equal to the inner diameter of the second socket.

[0018] Compared with the prior art, the technical solution proposed by the utility model has the following beneficial effects: when installing the one-way clutch, first apply grease to the roller rod and the retaining frame; then pass the clamping frame through the center hole of the top block, then insert the retaining frame into the insertion part of the clamping frame, and then embed the roller rod into the retaining frame; then push the combination consisting of the clamping frame, the top block, the retaining frame and the roller rod into one end of the hollow shaft until the limiting protrusion of the top block hits the end of the hollow shaft, then hold the top block with one hand, and insert the flexible shaft into the other end of the hollow shaft with the other hand. After the flexible shaft contacts the clamping frame, the clamping frame will be pushed out of the hollow shaft. When the clamping frame is withdrawn, the retaining frame will not shift because it is blocked by the top block. After the clamping frame completely leaves the hollow shaft, the top block is pulled out. At this time, the head end of the flexible shaft will be exposed from the center hole of the retaining frame, and then the nut is screwed into the head end of the flexible shaft to lock the flexible shaft to prevent the flexible shaft from retracting, thereby completing the assembly of the starter generator one-way clutch. In the utility model, the retaining frame is blocked by the top block, and the retaining frame and the roller rod will not move in the assembly process, and the roller rod will not fall off, thereby eliminating quality risks. At the same time, by setting a limit protrusion, the depth of the retaining frame inserted into the hollow shaft can be positioned to prevent position deviation from causing subsequent bearings and bushings to be unable to be assembled, requiring rework and reassembly, thereby affecting work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the cross-sectional structure of an existing starter generator one-way clutch after assembly;

[0020] Figure 2 It is a cross-sectional structural schematic diagram of an embodiment of a one-way clutch assembly device provided by the utility model;

[0021] Figure 3 yes Figure 2 A schematic structural diagram of a one-way clutch assembly device;

[0022] Figure 4 yes Figure 3 A schematic diagram of the structure of the one-way clutch assembly device after the flexible shaft pushes the clamping frame to move;

[0023] Figure 5 yes Figure 2 An exploded view of the one-way clutch assembly in FIG. 1 (omit the starter generator one-way clutch);

[0024] In the figure: 100-starter generator one-way clutch, 110-flexible shaft, 111-head end, 120-roller, 130-retaining frame, 140-hollow shaft, 141-limiting step, 150-nut, 200-one-way clutch assembly device, 210-clamping frame, 211-insertion part, 2111-accommodation hole, 212-external part, 2121-blocking part, 2122-handle, 220-top block, 221-guide hole, 222-limiting protrusion, 223-embedded part. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0026] Please refer to Figure 2-Figure 5 The utility model provides a one-way clutch assembly device 200, including a top block 220 and a clamping frame 210, one end of the top block 220 is used to insert one end of the hollow shaft 140, a guide hole 221 is formed in the top block 220, and a limiting protrusion 222 is formed on the side wall of the top block 220, the clamping frame 210 includes an insertion portion 211 and an external portion 212, the insertion portion 211 is used to insert the guide hole 221, and the insertion portion 211 is used to sleeve the retaining frame 130.

[0027] When installing the one-way clutch, first apply grease to the roller bar 120 and the retaining frame 130; then pass the clamping frame 210 through the guide hole 221 of the top block 220, then insert the retaining frame 130 into the insertion portion 211 of the clamping frame 210, and then embed the roller bar 120 into the retaining frame 130; then push the assembly consisting of the clamping frame 210, the top block 220, the retaining frame 130 and the roller bar 120 into one end of the hollow shaft 140 until the limiting protrusion 222 of the top block 220 hits the end of the hollow shaft 140, then hold the top block 220 with one hand, and insert the flexible shaft 110 into the hollow shaft with the other hand At the other end of 140, after the flexible shaft 110 contacts the clamping frame 210, the clamping frame 210 will be pushed out of the hollow shaft 140. When the clamping frame 210 withdraws, the retaining frame 130 will not shift because the top block 220 blocks the retaining frame 130. After the clamping frame 210 completely leaves the hollow shaft 140, the top block 220 is pulled out. At this time, the head end 111 of the flexible shaft 110 will be exposed from the center hole of the retaining frame 130, and then the nut 150 is screwed into the head end 111 of the flexible shaft 110 to lock the flexible shaft 110 to prevent the flexible shaft 110 from retracting, thereby completing the assembly of the starter generator one-way clutch 100.

[0028] In the utility model, the retaining frame 130 is blocked by the top block 220, and the retaining frame 130 and the roller rod 120 will not move in the assembly process, and the roller rod 120 will not fall, thereby eliminating quality risks. At the same time, by setting the limiting protrusion 222, the depth of the retaining frame 130 inserted into the hollow shaft 140 can be positioned to prevent position deviation from causing the subsequent bearings and bushings to be unable to be assembled, requiring rework and reassembly, thereby affecting work efficiency.

[0029] In order to facilitate the accommodation of the head end 111 of the flexible shaft 110, please refer to Figure 3 and Figure 4 In a preferred embodiment, a receiving hole 2111 is formed at one end of the insertion portion 211 , and the receiving hole 2111 is used to accommodate the head end 111 of the flexible shaft 110 .

[0030] In order to facilitate the accommodation of the head end 111 of the flexible shaft 110, please refer to Figure 3 and Figure 4 In a preferred embodiment, the diameter of the receiving hole 2111 is larger than the diameter of the head end 111 of the flexible shaft 110 , and the diameter of the receiving hole 2111 is smaller than the diameter of the flexible shaft 110 .

[0031] To implement the functions of the external unit 212, please refer to Figure 3 and Figure 4 In a preferred embodiment, the external portion 212 includes a blocking portion 2121 and a handle 2122 , one end of the blocking portion 2121 is fixed to the insertion portion 211 and is used to abut against the top block 220 , and the handle 2122 is fixed to the other end of the blocking portion 2121 .

[0032] In order to realize the function of the blocking part 2121, please refer to Figure 3 and Figure 4 In a preferred embodiment, the size of the blocking portion 2121 is larger than the aperture of the guide hole 221 .

[0033] For ease of use, please refer to Figure 3 and Figure 4 In a preferred embodiment, the size of the handle 2122 is smaller than the size of the blocking portion 2121 .

[0034] To improve the stability of the top block 220, please refer to Figure 2-Figure 5In a preferred embodiment, a limiting step 141 is formed in the hollow shaft 140, the portion of the hollow shaft 140 located in the limiting step 141 forms a first plug hole, and the portion of the hollow shaft 140 located outside the limiting step 141 forms a second plug hole. An embedding portion 223 is formed at the end of the top block 220, and the embedding portion 223 is used to embed into the first plug hole, and the top block 220 is used to embed into the second plug hole. The double-layer limiting method can improve the stability of the top block 220.

[0035] In order to improve the limiting effect of the top block 220, please refer to Figure 2-Figure 5 In a preferred embodiment, when the limiting protrusion 222 abuts against one end of the hollow shaft 140 , the top block 220 abuts against the limiting step 141 .

[0036] In order to specifically implement the embedding of the embedding portion 223 into the first jack, please refer to Figure 2-Figure 5 In a preferred embodiment, the outer diameter of the embedding portion 223 is equal to the inner diameter of the first insertion hole.

[0037] In order to specifically implement the embedding of the top block 220 into the second plug hole, please refer to Figure 2-Figure 5 In a preferred embodiment, the outer diameter of the top block 220 is equal to the inner diameter of the second insertion hole.

[0038] In order to better understand the present invention, the following Figure 1-Figure 5 The working process of the one-way clutch assembly device provided by the utility model is described in detail: when installing the one-way clutch, first apply grease to the rolling rod 120 and the retaining frame 130; then pass the clamping frame 210 through the guide hole 221 of the top block 220, and then insert the retaining frame 130 into the insertion portion 211 of the clamping frame 210, and then embed the rolling rod 120 into the retaining frame 130; then push the assembly consisting of the clamping frame 210, the top block 220, the retaining frame 130 and the rolling rod 120 into one end of the hollow shaft 140 until the limiting protrusion 222 of the top block 220 hits the end of the hollow shaft 140, and then use one hand to support the top block 220, Use the other hand to insert the flexible shaft 110 into the other end of the hollow shaft 140. After the flexible shaft 110 contacts the clamping frame 210, the clamping frame 210 will be pushed out of the hollow shaft 140. When the clamping frame 210 withdraws, the retaining frame 130 will not shift because the top block 220 blocks the retaining frame 130. After the clamping frame 210 completely leaves the hollow shaft 140, the top block 220 is pulled out. At this time, the head end 111 of the flexible shaft 110 will be exposed from the center hole of the retaining frame 130, and then the nut 150 is screwed into the head end 111 of the flexible shaft 110 to lock the flexible shaft 110 to prevent the flexible shaft 110 from retracting, thereby completing the assembly of the starter generator one-way clutch 100.

[0039] In the utility model, the retaining frame 130 is blocked by the top block 220, and the retaining frame 130 and the roller rod 120 will not move in the assembly process, and the roller rod 120 will not fall, thereby eliminating quality risks. At the same time, by setting the limiting protrusion 222, the depth of the retaining frame 130 inserted into the hollow shaft 140 can be positioned to prevent position deviation from causing the subsequent bearings and bushings to be unable to be assembled, requiring rework and reassembly, thereby affecting work efficiency.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A one-way clutch assembly device, characterized in that: It includes a top block and a clamping frame, one end of the top block is used to insert one end of the hollow shaft, a guide hole is formed in the top block, a limiting protrusion is formed on the side wall of the top block, and the clamping frame includes an insertion part and an external part, the insertion part is used to insert the guide hole, and the insertion part is used to sleeve a retaining frame.

2. The one-way clutch assembly device according to claim 1, characterized in that: A receiving hole is provided at one end of the insertion portion, and the receiving hole is used to accommodate the head end of the flexible shaft.

3. The one-way clutch assembly device according to claim 2, characterized in that: The aperture of the receiving hole is larger than the diameter of the head end of the flexible shaft, and the aperture of the receiving hole is smaller than the aperture of the flexible shaft.

4. The one-way clutch assembly device according to claim 1, characterized in that: The external part includes a blocking part and a handle. One end of the blocking part is fixed to the insertion part and is used to abut against the top block. The handle is fixed to the other end of the blocking part.

5. The one-way clutch assembly device according to claim 4, characterized in that: The size of the blocking portion is larger than the diameter of the guide hole.

6. The one-way clutch assembly device according to claim 5, characterized in that: The size of the handle is smaller than that of the blocking portion.

7. The one-way clutch assembly device according to claim 1, characterized in that: A limiting step is formed inside the hollow shaft, the portion of the hollow shaft located inside the limiting step forms a first socket, the portion of the hollow shaft located outside the limiting step forms a second socket, an embedding portion is formed at the end of the top block, the embedding portion is used to embed into the first socket, and the top block is used to embed into the second socket.

8. The one-way clutch assembly device according to claim 7, characterized in that: When the limiting protrusion abuts against one end of the hollow shaft, the top block abuts against the limiting step.

9. The one-way clutch assembly device according to claim 7, characterized in that: The outer diameter of the embedding portion is equal to the inner diameter of the first insertion hole.

10. The one-way clutch assembly device according to claim 7, characterized in that: The outer diameter of the top block is equal to the inner diameter of the second insertion hole.