An inner hole clutch rolling body assembling device

By designing an assembly device for the rolling elements of an internal clutch, and utilizing guide channels and guide arc structures, the assembly problem of small-sized inclined roller overrunning clutches was solved, achieving a safe and reliable assembly effect.

CN117484439BActive Publication Date: 2026-07-07HARBIN DONGAN ENGINE GRP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HARBIN DONGAN ENGINE GRP
Filing Date
2023-11-29
Publication Date
2026-07-07

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Abstract

The present application belongs to the technical field of mechanical assembly, and discloses an inner hole clutch rolling body assembly device, which comprises a support, a rotating shaft and a push block. The support is a rotary body structure matched with the hole of the inner hole clutch. The support center has a longitudinal through hole. The rotating shaft is rotatably arranged through the through hole of the support. The bottom of the rotating shaft is provided with the push block, which rotates with the rotating shaft. The support is laterally provided with a longitudinal guide channel. The rolling body falls into the clutch installation layer through the guide channel and enters the clutch outer ring under the pushing of the push block. The clutch rolling body assembly device is convenient to use, simple to operate and safe and reliable. It can effectively and reliably assemble various deep hole inner clutches, such as small size bevel roller type overrunning clutches, which are difficult to assemble, reduce the assembly difficulty and ensure the assembly quality.
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Description

Technical Field

[0001] This invention belongs to the field of mechanical assembly technology, and relates to an assembly device for an internal clutch, specifically an assembly device for the rolling elements of an internal clutch. Background Technology

[0002] The inclined roller overrunning clutch is a crucial component of aerospace mechanical transmission systems. Its function is to automatically disengage the input when the output speed exceeds the input speed in the reverse input or transmission direction, preventing significant malfunctions. The assembly of the inclined roller overrunning clutch is a critical step in aerospace mechanical transmission assembly, and its quality directly impacts transmission performance and flight safety.

[0003] The inclined roller overrunning clutch adopts a separate design of clutch inner shaft, clutch rollers and clutch outer ring. Its structure is developing towards miniaturization and lightweight. Therefore, the clutch is located in a small diameter deep hole. Due to the influence of structural dimensions, the original manual assembly method can no longer be realized. Current assembly methods are difficult to guarantee the assembly quality of clutch rollers. During the pressing process, the clutch rollers and clutch inner shaft are easily damaged. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides an assembly device for the rolling elements of an internal clutch, which can effectively and reliably assemble a small-sized inclined roller overrunning clutch.

[0005] The technical solution of the present invention is as follows:

[0006] An assembly device for rolling elements of an internal clutch includes a bracket, a rotating shaft, and a push block. The bracket is a rotating structure whose shape matches the hole where the internal clutch is located. The bracket has a longitudinal through hole at its center. The rotating shaft rotatably passes through the through hole of the bracket. A push block is provided at the bottom of the rotating shaft and rotates with the rotation of the rotating shaft. The bracket has a longitudinal guide channel on its side. The rolling elements fall into the clutch mounting layer through the guide channel and enter the outer ring of the clutch under the push of the push block.

[0007] Furthermore, the push block extends laterally with a protrusion located within the clutch mounting layer. A guide arc is provided at the point where the clutch mounting layer and the protrusion of the push block do not interfere longitudinally. The guide arc is located at the bottom of the guide channel, and the curvature of the guide arc causes the rolling element to move toward the inside of the clutch outer ring.

[0008] Furthermore, the guide arc is a symmetrical arc, which allows the rolling elements to be pushed into the clutch outer ring through the guide arc when the push block rotates clockwise or counterclockwise.

[0009] Furthermore, a handle is provided at the top of the pivot, which consists of a horizontally extending handle and a handle ball at the end of the handle.

[0010] Furthermore, at the clutch mounting layer, except for the guide arc, the outer diameter of the bracket is the same as the outer diameter of the inner shaft after the clutch is installed.

[0011] Furthermore, the rolling elements are clutch rollers, and the upper and lower edges of the clutch outer ring are slightly concave, so that the already installed clutch rollers will not fall out when the bracket is removed.

[0012] Furthermore, the rolling element is a clutch ball, and the inner sides of the upper and lower edges of the clutch outer ring are slightly curved so that the installed clutch ball will not fall out when the bracket is removed.

[0013] Furthermore, there are 1 to 6 guide channels, and each guide channel has a guide arc at its bottom.

[0014] The advantages of this invention are as follows:

[0015] 1. The clutch rolling element assembly device of the present invention is convenient to use, simple to operate, and safe and reliable. It can effectively and reliably assemble various deep-hole clutches that are difficult to assemble, such as small-sized inclined roller overrunning clutches, reducing the assembly difficulty and ensuring assembly quality;

[0016] 2. This invention offers various modifications, such as more guide channels. By placing the rolling elements one by one into the guide channels and then turning the handle once, a batch of rolling elements can be installed, which is extremely convenient and quick. Even the push block can have multiple protrusions, allowing all rolling elements to be installed at once with just a small turn of the handle. Installation can also be completed with a single guide channel and push block, making the device easier to manufacture. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this invention, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the clutch rolling element assembly device according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the use of the clutch rolling element assembly device according to an embodiment of the present invention;

[0020] Figure 3 yes Figure 2 AA diagram;

[0021] Among them, 1—handle ball, 2—handle, 3—cylindrical pin, 4—rotating shaft, 5—bracket, 6—push block, 7—nut, 8—washer. Detailed Implementation

[0022] This section describes embodiments of the present invention, used to explain and illustrate the technical solutions of the present invention. Unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating directions or positional relationships, are based on the orientation or positional relationships in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or case referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include more than one of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integrated connections; they can refer to mechanical connections or point connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] Example 1:

[0026] An assembly device for rolling elements of an internal clutch includes a bracket 5, a rotating shaft 4, and a pusher block 6. The bracket 5 is a rotating structure whose shape matches the hole where the internal clutch is located. The bracket 5 has a longitudinal through hole at its center. The rotating shaft 4 rotatably passes through the through hole of the bracket 5. The bottom of the rotating shaft 4 is provided with a pusher block 6, which rotates with the rotation of the rotating shaft 4. The bracket 5 is provided with a longitudinal guide channel on its side. The rolling elements fall into the clutch mounting layer through the guide channel and enter the clutch outer ring under the push of the pusher block 6.

[0027] The push block 6 has a protrusion extending laterally. The protrusion is located inside the clutch mounting layer. A guide arc is provided at the point where the clutch mounting layer and the protrusion of the push block 6 do not interfere longitudinally. The guide arc is located at the bottom of the guide channel. The curvature of the guide arc causes the rolling element to move toward the inside of the clutch outer ring.

[0028] The guide arc is a symmetrical arc, which allows the rolling element to be pushed into the clutch outer ring through the guide arc when the push block 6 rotates clockwise or counterclockwise.

[0029] The top of the rotating shaft 4 is provided with a handle, which is a horizontally extending handle 2 and a handle ball 1 at the end of the handle 2.

[0030] The outer diameter of bracket 5 at the clutch mounting layer, except for the guide arc, is the same as the outer diameter of the inner shaft after the clutch is installed.

[0031] The rolling element is a clutch roller, and the upper and lower edges of the clutch outer ring are slightly concave, so that the already installed clutch roller will not fall out when the bracket 5 is moved out.

[0032] The rolling element is a clutch ball, and the inner sides of the upper and lower edges of the clutch outer ring are slightly curved so that the installed clutch ball will not fall out when the bracket 5 is moved out.

[0033] There are 1 to 6 guide channels, and each guide channel has a guide arc at the bottom.

[0034] Example 2:

[0035] The structure of the present invention will now be described with reference to the accompanying drawings. In this example, a roller clutch is used as an example.

[0036] The bearing assembly tool mainly consists of a handle ball 1, a handle 2, a cylindrical pin 3, a rotating shaft 4, a bracket 5, a push block 6, a nut 7, and a washer 8.

[0037] The handle ball 1 is connected to the handle 2 by a thread, and the handle 2 is fixed to the rotating shaft 4 by a cylindrical pin 3. The handle can drive the rotating shaft to rotate.

[0038] The bracket 5 has a guide channel that can guide the clutch rollers to the predetermined position. The bracket 5 and the rotating shaft 4 have a small clearance and high precision fit. During use, the bracket 5 plays the roles of support, guidance and sliding bearing.

[0039] Nut 7 and washer 8 are used to fix bracket 5, push block 6 and rotating shaft 4. When handle 2 drives rotating shaft 4 to rotate, push block 6 pushes the clutch roller into the mounting groove.

[0040] The present invention can have multiple guide channels, and the push block 6 can also be a structure with multiple protrusions.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should be covered within the protection scope of the present invention.

Claims

1. An assembly device for rolling elements of an internal clutch, characterized in that, The device includes a bracket (5), a rotating shaft (4), and a push block (6). The bracket (5) is a rotating body structure whose shape matches the hole where the inner hole clutch is located. The bracket (5) has a longitudinal through hole in the center. The rotating shaft (4) can rotatably pass through the through hole of the bracket (5). The bottom of the rotating shaft (4) is provided with a push block (6). The push block (6) rotates with the rotating shaft (4). The bracket (5) has a longitudinal guide channel on its side. The rolling element falls into the clutch mounting layer through the guide channel and enters the clutch outer ring under the push of the push block (6). The push block (6) extends laterally with a protrusion. The protrusion is located inside the clutch mounting layer. A guide arc is provided at the point where the clutch mounting layer and the protrusion of the push block (6) do not interfere longitudinally. The guide arc is located at the bottom of the guide channel. The curvature of the guide arc causes the rolling element to move toward the clutch outer ring.

2. The internal clutch rolling element assembly device according to claim 1, characterized in that, The guide arc is a symmetrical circular arc, which allows the push block (6) to push the rolling element into the clutch outer ring through the guide arc when rotating clockwise and counterclockwise.

3. The internal clutch rolling element assembly device according to claim 1, characterized in that, The bracket (5) at the clutch mounting layer has the same outer diameter as the inner shaft outer diameter after the clutch is installed, except for the guide arc.

4. The internal clutch rolling element assembly device according to claim 1, characterized in that, The rolling element is the clutch roller, and the upper and lower edges of the clutch outer ring are slightly concave so that the already installed clutch roller will not fall out when the bracket (5) is moved out.

5. The internal clutch rolling element assembly device according to claim 1, characterized in that, There are 1 to 6 guide channels, and each guide channel has a guide arc at the bottom.

6. The rolling element assembly device for an internal clutch according to claim 1, characterized in that, The top of the rotating shaft (4) is provided with a handle, which is a horizontally extending handle (2) and a handle ball (1) at the end of the handle (2).