A one-way clutch retainer

Abstract

This utility model belongs to the technical field of mechanical transmission devices and discloses a one-way clutch retainer, including four arc-shaped modules. The four arc-shaped modules can be spliced ​​into a complete retainer. One end of each module is fixedly connected to multiple positioning pins, and the other end of each module has multiple pin holes adapted to the size of the positioning pins. One end of each module is fixedly connected to two symmetrically arranged mounting blocks. By designing the retainer as a split structure spliced ​​from four arc-shaped modules, this utility model allows for individual module replacement when a roller in a certain module fails. This only requires unlocking the limiting component and disassembling the corresponding module from the whole unit, without replacing the entire retainer. This solves the problem of needing to replace the entire retainer when a part of the traditional integrated retainer is damaged, and reduces subsequent maintenance costs.

Description

Technical Field

[0001] This utility model relates to the field of mechanical transmission device technology, and more specifically, to a one-way clutch retainer. Background Technology

[0002] A one-way clutch is a component in a mechanical transmission system that enables one-way locking and free rotation. It is widely used in automotive automatic transmissions, industrial speed reducers, and engineering machinery transmission systems. Its core function is to use the one-way motion characteristics of the internal rollers to ensure that power can only be transmitted in one direction, and automatically disengages when the direction is reversed. The cage is a core structural component of a one-way clutch. It is usually a ring or arc-shaped component used to precisely position the rollers and guide them to move along a specific trajectory during locking and disengagement.

[0003] In the existing technology, the cage of one-way clutches is mostly made of one piece. When individual rollers fail due to wear or impact breakage, the entire cage needs to be removed from the clutch and replaced as a whole, resulting in high maintenance costs.

[0004] In view of this, we propose a one-way clutch retainer. Utility Model Content

[0005] Technical problems to be solved The purpose of this invention is to provide a one-way clutch retainer to solve the problem mentioned in the background art that when individual rollers of a traditional one-way clutch retainer wear, break, or become stuck, the entire retainer needs to be replaced, resulting in high maintenance costs.

[0006] Technical solution

[0007] A one-way clutch retainer includes four arc-shaped modules that can be assembled into a complete retainer. One end of each module is fixedly connected to a plurality of locating pins, and the other end of each module has a plurality of pin holes adapted to the size of the locating pins. One end of each module is fixedly connected to two symmetrically arranged mounting blocks, and the other end of each module has two mounting holes adapted to the size of the mounting blocks. The mounting blocks are provided with limiting components for fixing the mounting blocks in the mounting holes.

[0008] Preferably, the positioning pin is cylindrical, and three positioning pins are fixedly connected to the end face of the module. The module has three pin holes for positioning and connecting with the positioning pins of adjacent modules.

[0009] Preferably, the limiting component includes an expansion block elastically connected to the mounting block and an expansion hole formed in the mounting hole, the size of which is adapted to the size of the expansion block.

[0010] Preferably, the end of the expansion block is provided with a guide slope with an inclined surface, the guide slope is used to guide the expansion block to move into the mounting block when the expansion block passes through the mounting hole.

[0011] Preferably, a movable plate is fixedly connected to the bottom of the expansion block, and a movable groove for moving the movable plate and the expansion block is provided in the mounting block. The depth of the movable groove is greater than the height of the movable plate and the expansion block, so that the expansion block can be completely retracted into the mounting block when it is squeezed.

[0012] Preferably, both sides of the mounting block are fixedly connected to sliders with a T-shaped cross-section, and the movable groove is provided with a groove adapted to the size of the slider. The movable plate is elastically connected to the inner bottom wall of the movable groove by multiple springs.

[0013] Preferably, an unlocking rod is fixedly connected to the movable plate, the unlocking rod penetrates the inner arc surface of the module, and the end of the unlocking rod is flush with the end face of the module. Beneficial effects

[0014] Compared with existing technologies, the advantages of this utility model are: This invention designs the cage as a split structure consisting of four arc-shaped modules. When the rollers in individual modules fail, only the limiting components need to be unlocked and the corresponding module removed from the whole structure to replace a single module, without having to replace the entire cage. This solves the problem of needing to replace the whole cage when a part of the traditional integrated cage is damaged, and reduces subsequent maintenance costs.

[0015] This invention achieves rapid alignment and stable connection between modules by precisely inserting positioning pins into the pin holes of adjacent modules and by cooperating with mounting blocks and mounting holes, combined with the elastic expansion characteristics of expansion blocks. This simplifies assembly operations and improves installation accuracy.

[0016] This invention, through the setting of the unlocking rod, allows the expansion block to be retracted into the mounting block by pressing the movable plate with the unlocking rod during disassembly, thereby completing the connection between adjacent modules. This avoids the problems of stripping or loosening caused by repeated disassembly of traditional bolt connections, allowing the modules to be repeatedly disassembled and reassembled while maintaining a stable connection, greatly extending the service life of the cage. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram showing the disassembled parts of this utility model; Figure 3 This is another exploded view of the present invention; Figure 4This is a cross-sectional view of the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 for Figure 4 Enlarged view of point B in the middle; Figure 7 This is a cross-sectional view of the mounting block of this utility model.

[0018] The following are the labels in the diagram: 1. Module, 2. Locating pin, 3. Pin hole, 4. Mounting block, 5. Mounting hole, 6. Expansion block, 7. Expansion hole, 8. Movable plate, 9. Spring, 10. Unlocking rod, 11. Movable groove, 12. Slider, 13. Slide groove, 14. Guide slope. Detailed Implementation

[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 this utility model.

[0020] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Please see Figure 1-7 This utility model provides a technical solution: A one-way clutch retainer includes four arc-shaped modules 1, which can be assembled into a complete retainer. One end of each module 1 is fixedly connected to multiple locating pins 2, and the other end of each module 1 has multiple pin holes 3 that are adapted to the size of the locating pins 2. One end of each module 1 is fixedly connected to two symmetrically arranged mounting blocks 4, and the other end of each module 1 has two mounting holes 5 that are adapted to the size of the mounting blocks 4. Each mounting block 4 has a limiting component for fixing it within the mounting holes 5. This design, by replacing the traditional one-piece retainer structure with separate modules 1, allows for direct replacement of damaged modules 1 when rollers in individual modules fail due to wear or impact, without needing to replace the entire retainer. Furthermore, the cooperation between the locating pins 2 and the pin holes 3 provides basic positioning for the assembly of modules 1, while the limiting components ensure the reliability of the connection after assembly.

[0023] In addition, the positioning pin 2 is cylindrical, and three positioning pins 2 are fixedly connected to the end face of module 1. Module 1 has three pin holes 3 for positioning and connecting with the positioning pins 2 of adjacent modules 1. With this setting, the cooperation of the three positioning pins 2 and the three pin holes 3 forms a multi-point cooperation limit, ensuring the accuracy of splicing multiple modules 1.

[0024] Secondly, the limiting component includes an expansion block 6 elastically connected to the mounting block 4 and an expansion hole 7 opened in the mounting hole 5. The size of the expansion hole 7 is adapted to the size of the expansion block 6. The end of the expansion block 6 is provided with a guide slope 14 with an inclined surface. The guide slope 14 is used to guide the expansion block 6 to move towards the inside of the mounting block 4 when it passes through the mounting hole 5. The limiting component includes an expansion block 6 elastically connected to the mounting block 4 and an expansion hole 7 opened in the mounting hole 5. The size of the expansion hole 7 is adapted to the size of the expansion block 6. With this setting, when the mounting block 4 is inserted into the mounting hole 5, the expansion block 6 will be squeezed by the inner wall of the mounting hole 5 and shrink towards the inside of the mounting block 4 until it is fully inserted into the mounting hole 5. Then, the expansion block 6 will return to its original outer diameter under the elastic action and fit with the expansion hole 7 to form a limiting. This simplifies the assembly steps and can also avoid the problem of module 1 separation caused by loose fasteners. The setting of the guide slope 14 further improves the convenience of splicing.

[0025] Furthermore, a movable plate 8 is fixedly connected to the bottom of the expansion block 6, and a movable groove 11 is provided in the mounting block 4 for the movement of the movable plate 8 and the expansion block 6. The depth of the movable groove 11 is greater than the height of the movable plate 8 and the expansion block 6, so that the expansion block 6 can be completely stored inside the mounting block 4 when it is squeezed. The movable groove 11 provides sufficient storage space for the expansion block 6, ensuring that the expansion block 6 can pass smoothly through the mounting hole 5 with the mounting block 4 after being squeezed.

[0026] Furthermore, both sides of the mounting block 4 are fixedly connected to sliders 12 with a T-shaped cross-section. The movable groove 11 has a groove 13 that matches the size of the slider 12. The movable plate 8 is elastically connected to the inner bottom wall of the movable groove 11 by multiple springs 9. In specific implementation, the groove 13 should not penetrate the movable groove 11 so that the expansion block 6 can be in the extended state in the initial state. This ensures that after the expansion block 6 moves to the expansion hole 7, it can limit the mounting block 4 through the expansion hole 7. The sliders 12 and the slider 12 make the extension and retraction of the expansion block 6 maintain linear motion and prevent it from deviating.

[0027] In addition, an unlocking rod 10 is fixedly connected to the movable plate 8. The unlocking rod 10 penetrates the inner arc surface of the module 1, and the end of the unlocking rod 10 is flush with the end face of the module 1. With this setting, when the module 1 needs to be disassembled, the operator can directly press the unlocking rod 10 on the inner arc surface of the module 1 to push the movable plate 8 into the movable slot 11, so that the expansion block 6 can be stored in the mounting block 4. At this time, the module 1 can be pulled out from the adjacent module 1, further improving the convenience of disassembly, assembly and maintenance.

[0028] Working principle: When assembling the cage, first take two modules 1, align the mounting block 4 of one module 1 with the mounting hole 5 of the other module 1 and insert it. At this time, the expansion block 6 on the mounting block 4 is squeezed by the inner wall of the mounting hole 5 and shrinks into the module 1 along the movable groove 11. When the expansion block 6 moves to the expansion hole 7, the expansion block 6 resets outward under the elastic force of the spring 9 and fits with the expansion hole 7 to form a limit, and the two modules 1 are firmly spliced ​​into a semi-circular structure. Then, following the same steps, the other two modules 1 are also spliced ​​into another semi-circular structure. Finally, the two semi-circular structures are spliced ​​into a complete ring cage. When the rollers in individual modules 1 fail and need maintenance, the entire cage needs to be disassembled into two independent semi-circular structures by the cooperation of the unlocking rod 10 and the movable plate 8. Then, the unlocking operation is repeated for the damaged module 1 in the target semi-circle, and the damaged module 1 is removed and replaced.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A one-way clutch cage characterized by: It includes four arc-shaped modules (1), which can be spliced ​​together to form a complete retainer. One end of each module (1) is fixedly connected to multiple positioning pins (2), and the other end of each module (1) is provided with multiple pin holes (3) that are adapted to the size of the positioning pins (2). One end of each module (1) is fixedly connected to two symmetrically arranged mounting blocks (4), and the other end of each module (1) is provided with two mounting holes (5) that are adapted to the size of the mounting blocks (4). The mounting blocks (4) are provided with limiting components for fixing the mounting blocks (4) in the mounting holes (5).

2. The one-way clutch cage of claim 1, wherein: The positioning pin (2) is cylindrical. Three positioning pins (2) are fixedly connected to the end face of the module (1). The module (1) has three pin holes (3) for positioning and connecting with the positioning pins (2) of the adjacent module (1).

3. The one-way clutch retainer as described in claim 1, characterized in that: The limiting component includes an expansion block (6) elastically connected to the mounting block (4) and an expansion hole (7) opened in the mounting hole (5), the size of the expansion hole (7) being adapted to the size of the expansion block (6).

4. The one-way clutch retainer as described in claim 3, characterized in that: The end of the expansion block (6) is provided with a guide slope (14) with an inclined surface. The guide slope (14) is used to guide the expansion block (6) to move into the mounting block (4) when the expansion block (6) passes through the mounting hole (5).

5. The one-way clutch retainer as described in claim 4, characterized in that: The bottom of the expansion block (6) is fixedly connected to a movable plate (8). The mounting block (4) has an active groove (11) for the movement of the movable plate (8) and the expansion block (6). The depth of the active groove (11) is greater than the height of the movable plate (8) and the expansion block (6), so that the expansion block (6) can be completely retracted into the mounting block (4) when it is squeezed.

6. The one-way clutch retainer as described in claim 5, characterized in that: Both sides of the mounting block (4) are fixedly connected to sliders (12) with a T-shaped cross section. The movable groove (11) is provided with a groove (13) that matches the size of the slider (12). The movable plate (8) is elastically connected to the inner bottom wall of the movable groove (11) by multiple springs (9).

7. The one-way clutch retainer as described in claim 5, characterized in that: An unlocking rod (10) is fixedly connected to the movable plate (8). The unlocking rod (10) penetrates the inner arc surface of the module (1), and the end of the unlocking rod (10) is flush with the end face of the module (1).

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