Sliding column type clutch spring seat device
By providing a flat wall and a drainage gap in the sliding column clutch spring seat device, the problems of foreign matter blockage and unstable spring support are solved, and stable operation and high-efficiency anti-fouling performance of the device under harsh working conditions are achieved.
Patent Information
- Application Number
- CN202423220146.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The existing sliding column clutch spring seat device is easily affected by dust and dirt in a poor working environment, which causes foreign matter to block and affect the normal operation of the spring. In addition, the spring support is unstable, affecting the stability and reliability of the clutch.
The bottom wall of the spring guide cavity of the spring seat body is designed to be a flat wall, and a drainage gap is set on one side of it. The width and length of the drainage gap are 1-2mm and 3-5mm to prevent foreign matter from sticking. Combined with the reasonable structure of the inner ring cam, the spring support is ensured to be stable.
It effectively prevents foreign matter from blocking, improves the running stability of the spring, ensures smooth rotation of the sliding column, improves the working reliability and stability of the clutch, and improves the anti-fouling performance by 30%.
Smart Images
Figure CN223411313U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a loader clutch, in particular to a sliding column type clutch spring seat device used in a loader gearbox. Background Art
[0002] The structure of the current sliding column heavy-duty overrunning clutch spring seat device in the industry is somewhat irrational. For example, due to the limited actual cleanliness of the lubricating oil and the non-sealing structure of the installation guide blind hole of the inner ring cam and the spring seat, the sliding column clutch spring seat device works in an environment with poor working conditions, the cleanliness of the lubricating oil in the box is not good, and its dust and dirt can easily enter the inner cavity. The installation guide blind hole and the inner cavity of the spring seat are prone to pressure accumulation and air suffocation. The spring seat is easily obstructed and blocked by dirt and foreign matter, causing the spring to become sticky and stuck, which in turn affects the normal operation of the sliding column, making it unable to reset in time, resulting in clutch failure. This is a problem that is found more frequently in the actual use of the roller sliding column clutch spring seat device.
[0003] In addition, the supporting bottom wall surface of the spring seat is set to a conical wall surface, and the spring seat supporting countersunk hole of the inner ring cam is also set to a conical wall surface. The considerations for setting up this structure are simple and convenient processing. However, the biggest problem with this setting structure is that the spring support is unstable, resulting in unstable spring force. Due to the instability of the spring force, the interaction between the spring seat and the sliding column is deflected and decomposed and dispersed, which affects the normal, stable and reliable operation of the clutch. Utility Model Content
[0004] The purpose of the present invention is to solve the problems existing in the prior art and provide a sliding column type clutch spring seat device. The sliding column type clutch spring seat device is reliable in operation and can be applied to various working environments.
[0005] The technical solution of the sliding column clutch spring seat device of the utility model includes a spring seat body, the spring seat body includes a spring guide cavity, the spring support bottom wall surface of the spring guide cavity is set to be a flat wall surface, the spring guide cavity of the spring seat is provided with a drainage notch, and the drainage notch is opened on the corresponding side wall close to the bottom of the spring guide cavity.
[0006] The width and length of the drainage notch are 1-2 mm and 3-5 mm respectively.
[0007] The utility model provides a drainage notch connected to the spring guide cavity of the spring seat by providing a side wall of one side of the outwardly extendable end of the spring seat close to the bottom wall of the spring guide cavity, which can effectively prevent foreign matter from sticking and blocking the spring guide cavity of the spring seat, thereby avoiding the spring seat, the spring, the installation guide blind hole of the inner ring cam and other components from being contaminated, and effectively avoiding clutch failure caused by such contamination.
[0008] At the same time, through its reasonable structural setting of the spring guide hole of the spring seat and the spring seat support countersunk hole of the inner ring cam, the spring support is more stable, the spring force performance is further improved and optimized, the stability of the spring operation is improved, and the sliding column rotates more steadily and smoothly on the inner ring cam boss surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a structural diagram of an embodiment of a sliding column type clutch spring seat device of the present utility model; Figure 2 for Figure 1 Schematic diagram of the cross-section structure along line AA; Figure 3 It is a partial cross-sectional structural diagram of the spring seat, inner ring cam, spring, slide column, etc. of the slide column type clutch spring seat device of the utility model. DETAILED DESCRIPTION
[0010] In order to further understand the technical solution of the present invention, the technical solution of the present invention is now clearly and completely described through embodiments in combination with the accompanying drawings.
[0011] like Figure 1-3 As shown in the figure, in Example 1 of the spool-type clutch spring seat device of the present invention, it includes a spring seat, which is provided with a spring guide cavity with one end open. Each boss surface of the inner ring cam 1 of the spool-type clutch spring seat device is provided with a mounting guide blind hole 2. The spring seat 3 is disposed in the mounting guide blind hole 2 of the inner ring cam 1. The outwardly extending end of the spring guide cavity 4 is closed. The spring seat 3 is inserted into the mounting guide blind hole 2 of the inner ring cam 1 through the open end of the spring guide cavity 4.
[0012] The outwardly extending end of the spring seat 3 is in contact with the outer peripheral side wall of the corresponding sliding column. The spring 6 is arranged between the bottom wall surface of the spring guide cavity 4 of the spring seat 3 and the bottom wall surface of the installation guide blind hole 2 of the inner ring cam 1.
[0013] A drainage notch 5 is provided in the sidewall of the spring seat 3, adjacent to the bottom wall of the spring guide cavity 4, i.e., the outwardly extending end. This notch 5 is located on the corresponding sidewall of the bottom of the spring guide cavity 4. The provision of this drainage notch 5 in the spring seat 3 creates a contamination-resistant spring seat structure, allowing for the drainage of contaminants and air. This effectively prevents foreign matter from adhering to and blocking the spring seat's spring guide cavity, preventing stagnation and obstruction of the spring's normal operation, and thus preventing the spring's normal force from being affected. This improves the assembly's contamination resistance by approximately 30%. The bottom wall of the mounting guide blind hole 2 of the inner ring cam 1 is V-shaped, facilitating machining.
[0014] The opposite ends of the spring 6 are provided with corresponding planar walls. The planar walls at both ends of the spring 6 are respectively abutted against the planar spring support bottom wall 7 of the spring guide cavity 4 and the planar spring seat support bottom wall 8 of the spring seat support counterbore 2. The end of the spring seat having the drainage notch 5 is correspondingly engaged with the slide post 9.
[0015] In Example 2 of the spool-type clutch spring seat assembly of the present invention, the width and length of the drainage notch are 1-2 mm and 3-5 mm, respectively. The drainage notch 5 is formed in the side wall and extends through the bottom wall of the spring guide cavity 4. The remaining structural components of this example are similar to those of the above-mentioned embodiment.
[0016] Although embodiments of the present invention have been shown, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles of the present invention, and the scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A spring seat device of a sliding column clutch, comprising a spring seat body, wherein the spring seat body comprises a spring guide cavity ... guide cavity comprises a spring guide cavity, wherein the spring guide cavity comprises a spring guide cavity, wherein the spring guide cavity comprises a spring guide The spring supporting bottom wall of the spring guide cavity is arranged as a plane wall surface, and the spring guide cavity of the spring seat is provided with a drainage notch, and the drainage notch is opened on a corresponding side wall close to the bottom of the spring guide cavity.
2. The slide column type clutch spring seat device according to claim 1, characterized in that: The width and length of the drainage notch are 1-2 mm and 3-5 mm respectively.