Novel high-reliability gearbox synchronizer packaging sliding block

Abstract

The utility model provides a novel high-reliability gearbox synchronizer packaging sliding block, and belongs to the technical field of synchronizers. The problems that in the prior art, the bottom of a synchronizer packaging sliding block is in a sealed state, and the steel ball disengaging thrust variation range is large are solved. The sliding block comprises a sliding block body, a steel ball and a reset spring, a bottom hole is formed in the bottom of the sliding block body, a sealing cover is fixedly installed in the bottom hole, a through axial hole is formed in the sliding block body, the bottom hole is communicated with the axial hole, the sealing cover is located at the bottom end of the axial hole, and the reset spring is installed in the axial hole and connected with the upper end face of the sealing cover. The bottom of the steel ball is fixedly connected with the top of the reset spring. The utility model has the advantages of stable structure, long service life and convenience in cleaning.

Description

Technical Field

[0001] This utility model belongs to the field of synchronizer technology, and relates to a gearbox synchronizer packaging slider, and particularly to a novel high-reliability gearbox synchronizer packaging slider. Background Technology

[0002] The encapsulation slider is an important functional component in the gearbox synchronizer. Although it is small in size and not complex in structure, its function is indispensable, such as... Figure 1 As shown, in existing conventional gearbox synchronizer packaging sliders, the steel ball is held in place by using an upper tapered neck. This necking can be achieved through punching or riveting. Both punching and riveting suffer from axial control instability, resulting in the steel ball's free height and working height failing to meet design requirements. More importantly, the deformation of the riveted necking is inconsistent due to variations in material hardness and normal machining variations in the outer diameter and height of the hole before necking. This leads to inconsistent deformation and springback, resulting in a large range of variations in the steel ball's ejection thrust. Furthermore, the bottom of existing conventional gearbox synchronizer packaging sliders is sealed, making it difficult to clean the inside of the slider body.

[0003] Chinese patent publication number CN218761026U discloses a synchronizer assembly, including an output shaft, a synchronizer hub sleeved on the output shaft, an encapsulation slider sleeved on the synchronizer hub, a synchronizer sleeve sleeved on the outer side of the encapsulation slider, and friction ring assemblies symmetrically arranged on both sides of the synchronizer hub. Each friction ring assembly has a shift gear at the end away from the synchronizer hub. The end face of the shift gear near the friction ring assembly has an external spline and a stop hole. When the synchronizer shifts gears, the external spline can mesh with the synchronizer sleeve, and the stop hole cooperates with the friction ring assembly.

[0004] As can be seen from the specification and accompanying drawings of the patent, the synchronizer assembly provided by the patent has a sealed structure below the synchronizer encapsulation slider, which also has the above-mentioned problems during use. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in the existing technology by providing a novel high-reliability gearbox synchronizer packaging slider.

[0006] The objective of this utility model can be achieved through the following technical solution: A novel high-reliability gearbox synchronizer encapsulation slider includes a slider body, a steel ball, and a return spring. The slider body has a bottom hole, in which a cover is fixedly installed. The slider body has a through axial hole, the bottom hole is connected to the axial hole, and the cover is located at the bottom end of the axial hole. The return spring is installed inside the axial hole and connected to the upper end face of the cover. The bottom end of the steel ball is fixedly connected to the top end of the return spring.

[0007] In the aforementioned novel high-reliability gearbox synchronizer packaging slider, the inner diameter of the bottom hole is larger than the inner diameter of the axial hole, a groove is formed at the junction of the bottom hole and the axial hole, and the upper outer end of the cover is connected to the groove.

[0008] In the aforementioned novel high-reliability gearbox synchronizer package slider, a tapered constriction is formed at the upper end of the slider body.

[0009] In the aforementioned novel high-reliability gearbox synchronizer packaging slider, the outer surface of the cover is connected to the inner wall of the bottom hole.

[0010] In the aforementioned novel high-reliability gearbox synchronizer package slider, an outer expansion groove is provided in the slider body at the lower end of the bottom hole, and the cover is located above the outer expansion groove.

[0011] Compared with the prior art, the novel high-reliability gearbox synchronizer encapsulation slider provided by this utility model has the following beneficial effects: 1. It adopts a bottom opening structure for direct filling of steel balls, avoiding the risks of springback instability and dimensional instability after the steel balls are installed and the opening narrows; 2. The axial hole is machined by metal cutting, and the inner wall of the axial hole is smooth, so that this utility model has a stable and reliable working force and steel ball ejection thrust; 3. The structure of the slider body through the axial hole and the bottom hole allows for effective cleaning of the slider body before the cover assembly. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the existing conventional gearbox synchronizer packaged slider structure;

[0013] Figure 2 This is a schematic diagram of the structure of this utility model.

[0014] In the diagram: 1. Slider body; 11. Bottom hole; 12. Axial hole; 13. Slot; 14. Tapered neck; 15. Outer expansion groove; 2. Steel ball; 3. Return spring; 4. Cover. Detailed Implementation

[0015] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0016] like Figure 2 As shown, this embodiment includes a slider body 1, a steel ball 2, and a return spring 3. An axial hole 12 is formed inside the slider body 1, extending along the longitudinal direction of the slider body 1 and passing through it. The axial hole 12 is machined from metal, and its inner wall has a smooth and flat structure. A tapered constriction 14 is formed at the upper end of the slider body 1. A bottom hole 11 is formed at the bottom of the slider body 1, communicating with the axial hole 12. A cap 4 is fixedly installed in the bottom hole 11, and the bottom hole 11 is connected to the axial hole 12. The cover 4 is located at the bottom of the axial hole 12. The return spring 3 is installed inside the axial hole 12 and connected to the upper end face of the cover 4. The bottom end of the steel ball 2 is fixedly connected to the top end of the return spring 3. The return spring 3 drives the steel ball 2 to move along the axial hole 12. The inner diameter of the bottom hole 11 is larger than the inner diameter of the axial hole 12. A groove 13 is formed at the junction of the bottom hole 11 and the axial hole 12. The upper outer end of the cover 4 is connected to the groove 13. The outer surface of the cover 4 is connected to the inner wall of the bottom hole 11.

[0017] Specifically, the cover 4 and the slider body 1 are welded together, and the upper outer end of the cover 4 and the slot 13 are tightly welded together. The outer surface of the cover 4 and the inner wall of the bottom hole 11 are also tightly welded together.

[0018] Specifically, when the return spring 3 is not compressed, the upper end of the steel ball 2 extends out of the upper end of the axial hole 12 and the tapered constriction 14. When the return spring 3 is compressed, the steel ball 2 is located inside the axial hole 12.

[0019] To elaborate further, such as Figure 2 As shown, an outer expansion groove 15 is provided in the slider body 1 at the lower end of the bottom hole 11. The outer expansion groove 15 makes the weld between the cover 4 and the slider body 1 lower than the bottom of the slider body 1, which facilitates the welding of the cover 4 and the slider body 1.

[0020] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0021] Although this document uses a variety of terms, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this invention; interpreting them as any additional limitation would contradict the spirit of this invention.

Claims

1. A novel high-reliability gearbox synchronizer encapsulated slider, comprising a slider body (1), a steel ball (2), and a return spring (3), characterized in that: The bottom of the slider body (1) is provided with a bottom hole (11), and a cover (4) is fixedly installed in the bottom hole (11). The slider body (1) is provided with a through axial hole (12). The bottom hole (11) is connected to the axial hole (12) and the cover (4) is located at the bottom end of the axial hole (12). The reset spring (3) is installed inside the axial hole (12) and connected to the upper end face of the cover (4). The bottom end of the steel ball (2) is fixedly connected to the top end of the reset spring (3).

2. The novel high-reliability gearbox synchronizer packaging slider according to claim 1, characterized in that: The inner diameter of the bottom hole (11) is larger than the inner diameter of the axial hole (12). A groove (13) is formed at the junction of the bottom hole (11) and the axial hole (12). The upper outer end of the cover (4) is connected to the groove (13).

3. The novel high-reliability gearbox synchronizer packaging slider according to claim 1, characterized in that: The upper end of the slider body (1) has a tapered constriction (14).

4. The novel high-reliability gearbox synchronizer packaging slider according to claim 1, characterized in that: The outer surface of the cap (4) is connected to the inner wall of the bottom hole (11).

5. A novel high-reliability gearbox synchronizer packaging slider according to claim 1, characterized in that: An outer expansion groove (15) is provided in the slider body (1) at the lower end of the bottom hole (11), and the cover (4) is located above the outer expansion groove (15).

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