CN214367552U

CN214367552U - Reverse gear planet carrier limiting structure

Info

Publication number: CN214367552U
Application number: CN202022808257.3U
Authority: CN
Inventors: 鲁成瑞; 籍胤玺; 颜海波
Original assignee: Shandong Lingong Construction Machinery Co Ltd
Current assignee: Shandong Lingong Construction Machinery Co Ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-10-08
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses a reverse gear planet carrier limit structure, it belongs to engineering machine tool technical field. The defect that the traditional reverse gear planetary gear assembly axial limiting structure in the prior art is low in working efficiency and high in labor intensity due to riveting points and is not beneficial to batch production and later-stage maintenance is overcome. Its major structure includes reverse gear planet row subassembly and input shaft, reverse gear planet row subassembly includes reverse gear bearing and reverse gear planet carrier, reverse gear bearing rotationally installs on the input shaft, and reverse gear planet carrier installs on reverse gear bearing, reverse gear planet carrier's right-hand member is equipped with the location boss, and reverse gear planet carrier's left end is equipped with the fender circle groove, is equipped with the retaining ring in the fender circle groove, and the retaining ring contacts with reverse gear bearing's left end. The utility model discloses mainly used engineering machine tool such as loader.

Description

Reverse gear planet carrier limiting structure

The technical field is as follows:

the utility model belongs to the technical field of engineering machine tool, specifically speaking especially relates to a reverse gear planet carrier limit structure.

Background art:

the planetary gearbox for the 5-ton loader has the advantages of compact structure, high reliability, good market maintainability, low maintenance cost and the like, and occupies an important share in the market. The planetary gear train of the planetary gearbox comprises a reverse gear planetary gear component, a first gear planetary gear component and two planetary gear components, wherein the reverse gear planetary gear component plays an important role in power transmission of the gearbox. To prevent the reverse row planetary gear assembly from axial play causing the working parts to interfere with each other resulting in early wear failure, the reverse row planetary gear assembly must be axially positioned.

The axial limit structure of the present reverse gear planetary row assembly is as follows: a boss is additionally arranged at the outer ring of a bearing hole of the reverse gear planet carrier and close to a friction plate, so that the reverse gear planet row assembly is prevented from moving rightwards; and a boss is additionally arranged on the right side of a bearing hole on the reverse gear planet carrier to prevent the reverse gear planet gear assembly from moving leftwards.

The measures for preventing the reverse gear planet row assembly from moving rightwards in the prior art scheme are as follows: 1. riveting points at the outer ring of the contact part of the left end surface of the reverse gear planet carrier and the bearing, wherein the material deformation of the left end surface of the reverse gear planet carrier caused by the riveting points plays a role in limiting right movement; 2. the boss is additionally arranged at the position, close to the friction plate, of the reverse gear planet carrier, and the right limiting effect on the reverse gear planet gear assembly is achieved through the contact of the friction plate and the limiting boss of the reverse gear planet carrier in the working process.

In addition, measures for preventing the reverse gear planet row assembly from moving left are as follows: and a boss is added at the right side of the bearing on the reverse gear planet carrier.

It has the following disadvantages: 1. the riveting point is easy to damage the outer ring of the bearing, the precision of the raceway is influenced, the service life and the reliability of the bearing are further influenced, the working efficiency of the riveting point is low, the labor intensity is high, and the mass production and the later maintenance are not facilitated; 2. because the normal work wearing and tearing of friction disc, the axial float of reverse gear planet carrier subassembly can be bigger and bigger, causes the bearing to make a round trip to deviate from reverse gear planet carrier dead eye, causes the oil temperature to rise to along with the further wearing and tearing of friction disc, the subassembly is arranged to the first fender planet and the subassembly is arranged to the reverse gear planet can take place the work and interfere, causes the part wearing and tearing, the incasement portion abnormal sound.

The invention content is as follows:

the to-be-solved technical problem of the utility model is overcome prior art not enough, provide a reverse gear planet carrier limit structure, its reverse gear planet row subassembly axial degree of freedom is fixed a position completely, and the location is reliable, and the assembly is simple, and the assembly efficiency is high and the batch production of being convenient for, can directly change the reverse gear bearing after pulling down the retaining ring from the left end when the reverse gear planet row subassembly is dismantled simultaneously, and market maintainability is good.

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

the utility model provides a reverse gear planet carrier limit structure, arranges subassembly and input shaft including the reverse gear planet, reverse gear planet row subassembly includes reverse gear bearing and reverse gear planet carrier, reverse gear bearing rotationally installs on the input shaft, and reverse gear planet carrier installs on reverse gear bearing, reverse gear planet carrier's right-hand member is equipped with the location boss, and reverse gear planet carrier's left end is equipped with the retainer ring groove, is equipped with the bearing retainer ring in the retainer ring groove, and the bearing retainer ring contacts with reverse gear bearing's left end.

Preferably, the reverse gear planet row assembly further comprises a reverse gear planet shaft, a planet wheel and a reverse gear inner gear ring, the reverse gear planet shaft is mounted on the reverse gear planet carrier, the planet wheel is mounted on the reverse gear planet shaft, and the planet wheel is in meshing connection with the reverse gear inner gear ring through teeth.

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

the utility model discloses a subassembly left direction displacement is arranged to reverse gear planet adopts the location boss and the contact of the bearing that reverses gear on reverse gear planet carrier bearing nest right side to carry on spacingly, the subassembly right direction displacement is arranged to reverse gear planet adopts the left bearing retainer ring of the planet carrier that reverses gear and the contact of the bearing that reverses gear to carry on spacingly, therefore, the axial degree of freedom of subassembly is arranged to the reverse gear planet is fixed a position completely, the location is reliable, the assembly is simple, the high batch production of just being convenient for of assembly efficiency, can directly change the bearing that reverses gear after the bearing retainer ring is pulled down from the left end when the subassembly is dismantled to the reverse gear planet simultaneously, market maintainability is good.

Description of the drawings:

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

fig. 2 is a schematic structural view of a middle reverse gear planet carrier of the present invention;

fig. 3 is a partial enlarged view of fig. 1 at G.

In the figure: 1. a reverse gear bearing; 2. a reverse gear planet carrier; 3. a bearing retainer ring; 4. positioning the boss; 5. a retainer groove; 6. reverse gear planet shafts; 7. a planet wheel; 8. a reverse gear ring gear; 9. an input shaft.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

Example 1:

as shown in fig. 1-3, a reverse gear planet carrier limit structure, including reverse gear planet row subassembly and input shaft 9, reverse gear planet row subassembly is including reverse gear bearing 1 and reverse gear planet carrier 2, reverse gear bearing 1 rotationally installs on input shaft 9, and reverse gear planet carrier 2 installs on reverse gear bearing 1, reverse gear planet carrier 2's bearing nest right-hand member department is equipped with location boss 4, and reverse gear planet carrier 2's left end is equipped with retainer ring groove 5, is equipped with retaining ring 3 in the retainer ring groove 5, and retaining ring 3 contacts with reverse gear bearing 1's left end and carries on spacingly.

The left displacement of the reverse gear planetary row assembly is limited by the contact of the positioning boss 4 on the right side of the reverse gear planet carrier 2 and the reverse gear bearing 1, the right displacement of the reverse gear planetary row assembly is limited by the contact of the bearing retainer ring 3 on the left side of the reverse gear planet carrier 2 and the reverse gear bearing 1, the axial freedom of the reverse gear planetary row assembly and the reverse gear bearing 1 is completely positioned, and the axial freedom of the reverse gear bearing 1 is completely limited by other mechanisms, so that the reverse gear planetary row assembly cannot have axial movement in the working process, and the reverse gear planetary row assembly and the first gear planetary row assembly cannot be worn or failed by parts due to the axial movement.

Example 2:

the utility model provides a reverse gear planet carrier limit structure, reverse gear planet row subassembly still includes reverse gear planet axle 6, planet wheel 7 and reverse gear ring gear 8, reverse gear planet axle 6 is installed on reverse gear planet carrier 2, planet wheel 7 is installed on reverse gear planet axle 6, and planet wheel 7 passes through the tooth meshing with reverse gear ring gear 8 and is connected. The other portions are the same as in example 1.

Claims

1. The utility model provides a reverse gear planet carrier limit structure, includes reverse gear planet row subassembly and input shaft (9), its characterized in that: reverse gear planet gear subassembly is including reversing gear bearing (1) and reverse gear planet carrier (2), reverse gear bearing (1) rotationally installs on input shaft (9), and reverse gear planet carrier (2) are installed on reversing gear bearing (1), the right-hand member of reverse gear planet carrier (2) is equipped with location boss (4), and the left end of reverse gear planet carrier (2) is equipped with retainer ring groove (5), is equipped with retaining ring (3) in retainer ring groove (5), and retaining ring (3) and the left end contact of reversing gear bearing (1).

2. The reverse planet carrier limiting structure according to claim 1, wherein: the reverse gear planet row assembly further comprises a reverse gear planet shaft (6), a planet wheel (7) and a reverse gear inner gear ring (8), the reverse gear planet shaft (6) is installed on the reverse gear planet carrier (2), the planet wheel (7) is installed on the reverse gear planet shaft (6), and the planet wheel (7) is connected with the reverse gear inner gear ring (8) in a gear meshing mode.