CN219317587U

CN219317587U - Parking gear structure

Info

Publication number: CN219317587U
Application number: CN202122652842.3U
Authority: CN
Inventors: 汪胜淋
Original assignee: Chongqing Wangdefu Machinery Co ltd
Current assignee: Chongqing Wangdefu Machinery Co ltd
Priority date: 2021-11-02
Filing date: 2021-11-02
Publication date: 2023-07-07
Anticipated expiration: 2031-11-02

Abstract

The utility model relates to the technical field of parking mechanism structures, and particularly discloses a parking gear structure, which comprises a wheel disc which can be fixed on a gear shaft, wherein one end of the wheel disc is provided with a plurality of gear teeth which can be meshed with a parking pawl, the other end of the wheel disc is provided with an auxiliary disc, and the diameter of the auxiliary disc is larger than that of the gear teeth and is in sliding connection with the parking pawl, so that the position of the parking pawl can be limited by the auxiliary disc, the parking pawl and the parking gear are prevented from generating position deviation, and the problem that the parking performance is influenced due to the fact that the parking pawl and the parking gear are easy to generate position deviation when the parking pawl is impacted in the traditional vehicle parking mechanism is solved.

Description

Parking gear structure

Technical Field

The application relates to the technical field of parking mechanism structures, and specifically discloses a parking gear structure.

Background

Currently, automobiles on the market are generally provided with a parking mechanism, wherein the parking mechanism generally comprises a parking gear and a parking pawl, the parking gear is fixed on a gear shaft of a transmission, the parking pawl is controlled to be engaged with or separated from the parking gear, and after the parking pawl is engaged with the parking gear, the parking pawl locks the parking gear (which is equivalent to the gear shaft locking the transmission) so as to realize parking.

In parking, a parking pawl can be engaged with a parking gear to achieve a parking state, the parking pawl is engaged with or separated from the parking gear through hinging of a plurality of connecting rods, and in long-term use of a vehicle, the hinging positions of the connecting rods are possibly loosened, or the vehicle is impacted, and the like, so that the position of the parking pawl is cheap, position deviation is generated between the parking pawl and the parking gear, the engagement effect between the parking pawl and the parking gear is reduced, and the parking performance of the vehicle is seriously and even completely influenced.

Disclosure of Invention

The utility model aims to solve the problem that in the traditional vehicle parking mechanism, the parking pawl and the parking gear are easy to generate position deviation when being impacted, and the parking performance is affected.

In order to achieve the above purpose, the basic scheme of the utility model provides a parking gear structure, which comprises a wheel disc capable of being fixed on a gear shaft, wherein one end of the wheel disc is provided with a plurality of gear teeth capable of being meshed with a parking pawl, the other end of the wheel disc is provided with an auxiliary disc, and the diameter of the auxiliary disc is larger than that of the gear teeth and is in sliding connection with the parking pawl.

Further, an auxiliary groove is arranged between the gear teeth and the side wall of the auxiliary disc.

Further, the side wall of the auxiliary disc far away from one side of the gear teeth is provided with a buffer groove.

Further, the wheel disc inner wall is provided with a mounting hole matched with the gear shaft, and the wheel disc inner wall is provided with a first positioning groove and a second positioning groove which are positioned on two sides of the mounting hole.

Further, the first positioning groove is positioned on one side of the inner wall of the wheel disc, which is close to the buffer groove, and the inner wall of the wheel disc is provided with a baffle ring positioned at the side end of the first positioning groove.

Further, the second positioning groove is located on one side, close to the gear teeth, of the inner wall of the wheel disc, and a third positioning groove located at the side end of the second positioning groove is formed in the inner wall of the wheel disc.

Further, the inner wall of the third positioning groove is an inclined plane inclined along the axial direction of the wheel disc, and the diameter of one end of the third positioning groove close to the second positioning groove is smaller than that of one end of the third positioning groove far away from the second positioning groove.

The principle and effect of this scheme lie in:

the auxiliary wheel is arranged, so that the auxiliary wheel can achieve a limiting effect on the parking pawl, friction between the auxiliary wheel and the parking pawl is reduced through the auxiliary groove, abrasion consumption is reduced, the problem that the parking performance is affected due to the fact that position deviation easily occurs between the parking pawl and the parking gear when the parking pawl is impacted in a traditional vehicle parking mechanism is solved, and meanwhile, the wheel disc is convenient to install and axially position through the first positioning groove, the second positioning groove, the third positioning groove, the buffer groove and the like, and compactness in a transmission process is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 illustrates a cross-sectional view of a park gear structure according to an embodiment of the present application;

fig. 2 shows a front view of a gear tooth of a parking gear structure according to an embodiment of the present application.

Detailed Description

In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.

Reference numerals in the drawings of the specification include: wheel disc 1, teeth of a cogwheel 2, auxiliary disc 3, auxiliary tank 4, first constant head tank 5, second constant head tank 6, third constant head tank 7, buffer tank 8.

A parking gear structure, an embodiment of which is shown in fig. 1: the parking wheel comprises a wheel disc 1 which is forged and can be fixed on a gear shaft, a plurality of gear teeth 2 which can be meshed with parking pawls are arranged at one end of the wheel disc 1, an auxiliary disc 3 is arranged at the other end of the wheel disc 1, the diameter of the auxiliary disc 3 is larger than that of the gear teeth 2 and can be in sliding connection with the parking pawls, the parking pawls are vertically arranged above the auxiliary disc 3, the parking pawls are not contacted with the auxiliary disc 3 under the normal working state of the parking pawls, the auxiliary disc 3 does not influence the parking pawl structure, when the connecting structure of the parking pawls is loosened, or the vehicle is impacted, the parking pawls fall downwards under the gravity, the auxiliary disc 3 can limit the position of the parking pawls at the moment, the parking pawls can be meshed with the gear teeth 2, so that the parking effect is achieved, an auxiliary groove 4 is further arranged between the gear teeth 2 and the side wall of the auxiliary disc 3, the auxiliary groove 4 is annular, an inclined plane with an inclined angle of 20 degrees is arranged between the inner diameter side wall of the auxiliary groove 4 and the inner ground, an inclined plane with an inclined angle of 40 degrees is arranged between the outer diameter side wall of the auxiliary groove 4 and the inner ground, the inclined plane and the inner ground of the auxiliary groove 4 is excessively smooth, the inclined plane is arranged, the auxiliary groove 4 is more easily, the parking pawl is convenient to manufacture, and the side wall of the auxiliary groove is more than the gear tooth 8, and the side wall is more convenient to manufacture, and is more than the side wall of the auxiliary groove is more convenient to be processed, and has a smooth side wall 8.

The rim plate 1 inner wall is equipped with gear shaft complex mounting hole, rim plate 1 inner wall is equipped with first constant head tank 5 and second constant head tank 6 that are located the mounting hole both sides, first constant head tank 5 is located rim plate 1 inner wall and is close to buffer tank 8 one side, rim plate 1 inner wall is equipped with the shelves ring that is located first constant head tank 5 side, second constant head tank 6 is located rim plate 1 inner wall and is close to one side of teeth of a cogwheel 2, rim plate 1 inner wall is equipped with the third constant head tank 7 that is located second constant head tank 6 side, third constant head tank 7 inner wall is the inclined plane of slope along rim plate 1 axial direction, the inclination of this inclined plane is 6.6 and the length of this inclined plane is less than the width of teeth of a cogwheel 2, thereby improve structural strength, the diameter that third constant head tank 7 is close to second constant head tank 6 one end is less than the diameter that third constant head tank 7 kept away from second constant head tank 6 one end.

The first positioning groove 5 is matched with a gasket and the like for use, positioning is performed through a sleeve and the like, the second positioning groove 6 is matched with a connecting key for use, and the third positioning groove 7 is matched with a fixed ring and the like for use, so that the wheel disc 1 is limited in the axial direction, and the whole structure is more convenient to install and detach.

Compared with the prior art, the auxiliary wheel is arranged, so that the auxiliary wheel can achieve a limiting effect on the parking pawl, friction between the auxiliary wheel and the parking pawl is reduced through the auxiliary groove 4, abrasion consumption is reduced, the problem that in a traditional vehicle parking mechanism, when the parking pawl is impacted, position deviation is prone to occur between the parking pawl and the parking gear, and parking performance is affected is solved, meanwhile, the wheel disc 1 is convenient to install and axially position through the first positioning groove 5, the second positioning groove 6, the third positioning groove 7, the buffer groove 8 and the like, and compactness in a transmission process is improved.

The present utility model is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.

Claims

1. A parking gear structure, characterized in that: the parking wheel comprises a wheel disc which can be fixed on a gear shaft, one end of the wheel disc is provided with a plurality of gear teeth which can be meshed with a parking pawl, the other end of the wheel disc is provided with an auxiliary disc, and the diameter of the auxiliary disc is larger than that of the gear teeth and is in sliding connection with the parking pawl.

2. A parking gear structure as claimed in claim 1, wherein an auxiliary groove is further provided between the gear teeth and the auxiliary disc side wall.

3. A parking gear structure according to claim 1, wherein the side wall of the auxiliary disc on the side away from the gear teeth is provided with a buffer groove.

4. A parking gear structure according to claim 3, wherein the inner wall of the wheel disc is provided with a mounting hole matched with the gear shaft, and the inner wall of the wheel disc is provided with a first positioning groove and a second positioning groove which are positioned at two sides of the mounting hole.

5. The parking gear structure according to claim 4, wherein the first positioning groove is located on one side of the inner wall of the wheel disc, which is close to the buffer groove, and the inner wall of the wheel disc is provided with a stop ring located on the side end of the first positioning groove.

6. The parking gear structure according to claim 4, wherein the second positioning groove is located on a side of an inner wall of the wheel disc, which is close to the gear teeth, and the inner wall of the wheel disc is provided with a third positioning groove located at a side end of the second positioning groove.

7. The parking gear structure according to claim 6, wherein the inner wall of the third positioning groove is an inclined surface inclined along the axial direction of the wheel disc, and the diameter of one end of the third positioning groove close to the second positioning groove is smaller than the diameter of one end of the third positioning groove far away from the second positioning groove.