CN215334270U

CN215334270U - Combined parking gear

Info

Publication number: CN215334270U
Application number: CN202120342347.XU
Authority: CN
Inventors: 周文虎; 段崇和; 吕元之
Original assignee: Laiwu Xinyi Powder Metallurgy Industry Technology Research Institute; Jinan Xinyi Powder Metallurgy Co ltd
Current assignee: Laiwu Xinyi Powder Metallurgy Industry Technology Research Institute; Jinan Xinyi Powder Metallurgy Co ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-12-28
Anticipated expiration: 2031-02-05

Abstract

The utility model provides a combined parking gear, and mainly relates to the field of automobile accessories. The utility model provides a modular parking gear, includes inner ring and outer loop, the inner ring inner circle is provided with the internal tooth, be provided with the external tooth on the outer loop outer wall, the setting can be dismantled at the outer loop intracavity to the inner ring. The outer ring center sets up the installation cavity, set up a plurality of keyways in the installation cavity, set up the mounting key corresponding with the keyway on the inner ring outer wall. The utility model has the beneficial effects that: the utility model can respectively process the internal tooth and the external tooth of the parking gear, thereby improving the production efficiency; and this kind of connected mode can be changed the inner ring that damages, has saved the cost.

Description

Combined parking gear

Technical Field

The utility model mainly relates to the field of automobile accessories, in particular to a combined parking gear.

Background

The parking gear of the automobile speed reducer comprises a circular plate body, wherein the outer side of the circular plate body is provided with an outer tooth surface, and the inner side of the circular plate body is provided with an inner tooth surface. The existing method for processing the parking gear is to directly select bar cutting processing, form an outer tooth surface by hobbing and then form an inner tooth surface by a gear shaping processing method. The production mode of the cutting machining is low in efficiency, is only suitable for single-piece or small-batch production and application, and can cut off a metal streamline when the gear shaping is carried out to machine the inner gear surface, the strength of the gear surface is low, gear damage is easy to occur, defective products can be generated once the gear shaping damage occurs, and therefore resource waste is caused.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides the combined parking gear which is assembled in a combined mode to obtain the parking gear, so that the inner teeth and the outer teeth of the parking gear can be processed respectively, and the production efficiency is improved. And this kind of connected mode can be changed the inner ring that damages, has saved the cost.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the utility model provides a modular parking gear, includes inner ring and outer loop, the inner ring inner circle is provided with the internal tooth, be provided with the external tooth on the outer loop outer wall, the setting can be dismantled at the outer loop intracavity to the inner ring.

The outer ring center sets up the installation cavity, set up a plurality of keyways in the installation cavity, set up the mounting key corresponding with the keyway on the inner ring outer wall.

And both sides of the joint of the inner ring and the outer ring are provided with fixing rings, and the fixing rings are fixed on the outer ring and/or the inner ring through bolts.

And the outer ring and/or the inner ring are/is provided with a ring groove matched with the fixing ring.

Compared with the prior art, the utility model has the beneficial effects that:

the inner ring and the outer ring are fixedly connected in an inserting assembly mode, so that the inner teeth of the inner ring and the outer teeth of the outer ring can be processed simultaneously, and the production efficiency is greatly improved.

Through the mode of erection joint, reducible cost waste because gear shaping damage causes, and in the use, also can reduce cost of maintenance by changing the inner ring alone after the internal tooth damages.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention with the retaining ring removed;

FIG. 3 is a schematic view of the outer ring structure of the present invention;

FIG. 4 is a schematic diagram of the inner ring structure of the present invention.

Reference numerals shown in the drawings: 1. an inner ring; 2. an outer ring; 3. internal teeth; 4. an outer tooth; 5. a mounting cavity; 6. a keyway; 7. installing a key; 8. a fixing ring; 9. and a ring groove.

Detailed Description

The utility model is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.

As shown in fig. 1 to 4, in actual production, the machining of the parking gear takes time mainly in the hobbing of the outer tooth surface and the shaping of the inner tooth surface. In order to save the processing time, the utility model provides a combined parking gear which comprises an inner ring 1 and an outer ring 2, wherein inner teeth 3 are processed on inner ring gear shaping of the inner ring 1, outer teeth 4 are processed on outer walls of the outer ring 2 through hobbing, and the inner ring 1 is detachably arranged in an inner cavity of the outer ring 2. Through the detachable installation mode, the inner ring 1 and the outer ring 2 can be assembled after being independently processed, and therefore the processing efficiency of the parking gear is improved.

Specifically, the center of the outer ring 2 is provided with a mounting cavity 5, the inner wall of the mounting cavity 5 is provided with a plurality of key slots 6, and the outer wall of the inner ring 1 is provided with mounting keys 7 corresponding to the key slots 6. The inner ring 1 and the outer ring 2 can be fixed through the matching of the mounting key 7 and the key groove 6, and the tight meshing of the inner ring and the outer ring is realized. Further, in order to ensure that the inner ring 1 and the outer ring 2 cannot derail after being meshed, fixing rings 8 are arranged on two sides of the joint of the inner ring 1 and the outer ring 2, and the fixing rings 8 are fixed on the outer ring 2 and/or the inner ring 1 through bolts. The axial positions of the inner ring 1 and the outer ring 2 can be positioned through the arrangement of the fixing ring 8, and the outer ring 2 and the inner ring 1 are prevented from being deviated.

Specifically, the outer ring 2 and/or the inner ring 1 are provided with ring grooves 9 matched with the fixing rings 8. The fixing ring 8 can be clamped into the ring groove 9, and the fixing mode can avoid the fixing ring 8 from being higher than the outer ring 2 or the inner ring 1 and interfering with other parts.

Preferably, the ring groove 9 of the device is arranged on the inner ring of the outer ring 2 and the outer ring of the inner ring 1, the middle part of the inner ring 1 is provided with a lug boss, and the thickness of the outer ring of the inner ring 1 is consistent with that of the outer ring 2. The fixing ring 8 can be ensured to be axially positioned relative to the inner ring 1 and the outer ring 2 by clamping the fixing ring 8 into the ring groove 9.

Claims

1. A modular parking gear, includes inner ring (1) and outer loop (2), its characterized in that: inner ring (1) inner circle is provided with internal tooth (3), be provided with external tooth (4) on outer ring (2) outer wall, the setting can be dismantled in outer ring (2) inner chamber in inner ring (1), inner ring (1) and outer ring (2) link up department both sides and all set up solid fixed ring (8), gu fixed ring (8) pass through the bolt fastening on outer ring (2) and/or inner ring (1).

2. A modular parking gear according to claim 1, characterised in that: the mounting structure is characterized in that a mounting cavity (5) is arranged at the center of the outer ring (2), a plurality of key grooves (6) are formed in the mounting cavity (5), and mounting keys (7) corresponding to the key grooves (6) are arranged on the outer wall of the inner ring (1).

3. A modular parking gear according to claim 2, characterised in that: and the outer ring (2) and/or the inner ring (1) are/is provided with a ring groove (9) matched with the fixing ring (8).