CN218894920U

CN218894920U - Planet wheel equal load mechanism

Info

Publication number: CN218894920U
Application number: CN202320084666.4U
Authority: CN
Inventors: 杨顺成; 魏富德; 吴文剑; 张�浩; 乔永钦
Original assignee: Zhengzhou Research Institute of Mechanical Engineering Co Ltd
Current assignee: Zhengzhou Research Institute of Mechanical Engineering Co Ltd
Priority date: 2023-01-29
Filing date: 2023-01-29
Publication date: 2023-04-21
Anticipated expiration: 2033-01-29

Abstract

The utility model discloses a planet wheel load balancing mechanism, which is characterized in that a synchronous module is arranged on a planet gear and used for enabling a plurality of planet gears to keep synchronism during rotation, the synchronous module comprises a plurality of bases symmetrically fixed on the end part of a main body module, an annular plate arranged on one side of the base, a limiting piece arranged on the base and penetrating through the annular plate, bolts meshed with the base through the limiting piece, bearings fixedly sleeved on the outer side face of the limiting piece and connecting columns arranged in an annular array and connected with the opposite annular plate, the base is disc-shaped and fixed at the top end and the top end of the planet gear and used for installing the limiting piece, a positioning groove is eccentrically arranged at the top end of the base and used for embedding the limiting piece, and meanwhile, the eccentric arrangement can enable the planet gears to synchronously rotate during rotation, and screw holes are formed in the inner bottom wall of the positioning groove.

Description

Planet wheel equal load mechanism

Technical Field

The utility model relates to the technical field of uniform load mechanisms, in particular to a planetary gear uniform load mechanism.

Background

Vibration is easily generated when load distribution is uneven in a planetary gear transmission system, noise is increased, and even gear teeth are broken, so that the service life of the planetary gear transmission system is shortened, and therefore, improvement of load distribution unevenness among planetary gears is a problem which must be considered. Particularly, when the number of the planetary gears exceeds three, the planetary gears are more prone to unbalanced load. The primary reasons for the load distribution imbalance are unavoidable errors in manufacturing and assembly. The error is roughly divided into two parts, namely, the manufacturing error of the gear and the integrated error of the manufacturing and assembly of the planet carrier, the box body, the bearing and the like. Because the sun gear is required to be constantly kept in balanced engagement with a plurality of uniformly distributed planetary gears, the requirements on the gear motion precision such as radial runout deviation of a gear ring, base section deviation, tooth direction deviation, tooth shape deviation and the like are higher. The manufacturing and assembling integrated errors of the planet carrier, the box body, the bearing and the like are mainly angle deviation and center moment deviation of a plurality of planet gear shaft holes on the planet carrier, the integrated indexes are errors of adjacent hole pitches, coaxiality deviation of basic components and the like, and harmful elastic deformation of the components under the action of load, such as torsional deformation of a sun gear and the like, is caused by errors caused by inertia force, friction force and the like, and the errors can cause interference or clearance to be generated when the working tooth profile of the gear teeth of the center wheel or the center wheel is meshed with the planet gear, so that the load distribution among the planet gears and the uniformity of the load distribution along the meshing tooth width are damaged, and therefore, the planet wheel load balancing mechanism is continued to ensure the synchronism of the planet gears in the operation process, and the meshing clearance between the planet gears and the center wheel and an outer ring gear ring is eliminated.

Disclosure of Invention

The present utility model aims to solve one of the technical problems existing in the prior art or related technologies.

The technical scheme adopted by the utility model is as follows: a planetary gear load balancing mechanism, comprising: the main body module and the synchronous module, the synchronous module includes a plurality of bases that are the symmetry and fix on main body module tip, set up the annular slab in base one side, install on the base and pass the locating part of annular slab, pass the bolt of locating part meshing on the base, fixed cup joint the bearing on the locating part lateral surface and be annular array setting and connect the spliced pole of relative annular slab.

The present utility model may be further configured in a preferred example to: the main body module comprises a rotating shaft, a sun gear fixedly sleeved on the outer side face of the rotating shaft, a plurality of planet gears which are arranged in an annular array and meshed with the sun gear, and a toothed ring which is arranged on the outer side of the planet gears and meshed with the planet gears.

The present utility model may be further configured in a preferred example to: the top of base is the eccentric constant head tank that is provided with, open on the interior diapire of constant head tank has the screw.

The present utility model may be further configured in a preferred example to: the annular plate is provided with waist-shaped holes in an annular array, and the number of the waist-shaped holes is equal to that of the planetary gears.

The present utility model may be further configured in a preferred example to: the cross section of the limiting piece is T-shaped, the bottom end of the limiting piece penetrates through the waist-shaped hole to be mutually embedded with the positioning groove, and the bottom end of the bolt penetrates through the limiting piece to be meshed in the screw hole.

The present utility model may be further configured in a preferred example to: the inner ring of the bearing and the outer side face of the limiting piece are fixed with each other, the outer ring is tightly attached to the inner wall of the waist-shaped hole, and the thickness of the bearing is slightly larger than that of the annular plate.

The present utility model may be further configured in a preferred example to: the connecting column is arranged in the middle of the adjacent planetary gears.

By adopting the technical scheme, the beneficial effects obtained by the utility model are as follows:

1. according to the utility model, the base is symmetrically fixed on the planet gears, the positioning grooves are eccentrically formed in the outer side face of the base, meanwhile, the annular plate is arranged on one side of the base, the waist-shaped hole is formed in the annular plate, and the limiting piece penetrates through the waist-shaped hole and is fixed on the base, so that when the planet gears rotate, the limiting piece is driven to synchronously rotate, the limiting piece rotates to drive the annular plate to do cyclic reciprocating motion, and a plurality of planet gears keep synchronous rotation when rotating through the mutual matching of the limiting piece and the annular plate, so that full meshing between each planet gear, the sun gear and the toothed ring is maintained, meshing gaps between the planet gears, the central wheel and the outer ring toothed ring are eliminated, and load distribution balance among the planet gears is ensured.

2. According to the utility model, the bearing is arranged on the outer side surface of the limiting piece, and the outer side surface of the bearing is tightly attached to the inner wall of the waist-shaped hole, so that when the limiting piece drives the annular plate to move, the friction force between the limiting piece and the annular plate is reduced, the service lives of the limiting piece and the annular plate are prolonged, the use stability of the load balancing mechanism is improved, and the practical performance is improved.

Drawings

FIG. 1 is a schematic top view of the present utility model;

FIG. 2 is a schematic view of the bottom view of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

FIG. 4 is an exploded view of the structure of the present utility model;

FIG. 5 is a schematic view of a limiting member according to the present utility model;

fig. 6 is a partially exploded view of the present utility model.

Reference numerals:

100. a main body module; 110. a rotating shaft; 120. a sun gear; 130. a planetary gear; 140. a toothed ring;

200. a synchronization module; 210. a base; 211. a positioning groove; 212. a screw hole; 220. an annular plate; 221. a waist-shaped hole; 230. a limiting piece; 240. a bolt; 250. a bearing; 260. and (5) connecting the columns.

Description of the embodiments

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

Some embodiments of the utility model are described below with reference to fig. 1-6, a planet balancing mechanism comprising: the main body module 100 and the synchronization module 200, the main body module 100 includes a rotating shaft 110, a sun gear 120 fixedly sleeved on the outer side surface of the rotating shaft 110, a plurality of planet gears 130 which are arranged in an annular array and are meshed with the sun gear 120, and a toothed ring 140 which is arranged on the outer side of the planet gears 130 and is meshed with the planet gears 130, wherein the rotating shaft 110 is used for installing the sun gear 120 and driving the sun gear 120 to rotate, the sun gear 120 is used for driving the planet gears 130 to rotate, and the planet gears 130 are used for driving the toothed ring 140 to rotate.

The synchronization module 200 is installed on the planetary gears 130 for maintaining synchronicity of a plurality of planetary gears 130 when rotating, and comprises a plurality of bases 210 symmetrically fixed on the end of the main body module 100, an annular plate 220 arranged on one side of the bases 210, a limiting member 230 installed on the bases 210 and passing through the annular plate 220, a bolt 240 meshed on the bases 210 through the limiting member 230, a bearing 250 fixedly sleeved on the outer side surface of the limiting member 230, and a connecting post 260 arranged in an annular array and connected with the opposite annular plate 220, the bases 210 are disc-shaped, fixed on the top end and the top end of the planetary gears 130 for installing the limiting member 230, a positioning groove 211 is eccentrically arranged on the top end of the bases 210 for embedding the limiting member 230, and simultaneously the eccentric arrangement can drive the limiting member 230 to synchronously rotate when rotating the planetary gears 130, a screw hole 212 is formed on the inner bottom wall of the positioning groove 211, the annular plate 220 is arranged on one side of the base 210 and is provided with waist-shaped holes 221 in an annular array, the number of the waist-shaped holes 221 is equal to that of the planetary gears 130, the cross section of the limiting member 230 is T-shaped and is used for being matched with the base 210 to keep the stability of the annular plate 220, the bottom end of the limiting member 230 penetrates through the waist-shaped holes 221 and is mutually embedded with the positioning groove 211, when the limiting member 230 rotates, the annular plate 220 can be driven to do circular reciprocating motion, the bottom end of the bolt 240 penetrates through the limiting member 230 and is meshed in the screw hole 212 to keep the stability of the limiting member 230, meanwhile, the installation and the disassembly of the limiting member 230 are convenient, the use convenience is improved, the inner ring of the bearing 250 and the outer side face of the limiting member 230 are mutually fixed, the outer ring is tightly attached to the inner wall of the waist-shaped holes 221, and the thickness of the bearing 250 is slightly larger than the thickness of the annular plate 220, so that when the limiting member 230 rotates in the waist-shaped holes 221, the bearing 250 changes the friction between the limiting member 230 and the annular plate 220 from sliding friction to rolling friction, so that the friction force between the limiting member 230 and the annular plate 220 is greatly reduced, the service life of the limiting member 230 and the service life of the annular plate 220 are further prolonged, and the connecting column 260 is arranged in the middle of the adjacent planetary gears 130 and used for connecting the opposite annular members into a whole, so that the synchronism of the planetary gears 130 in rotation is further ensured.

The working principle and the using flow of the utility model are as follows: when the rotating shaft 110 rotates, the sun gear 120 is driven to rotate, the sun gear 120 drives the planet gears 130 to rotate, the planet gears 130 rotate to drive the toothed rings 140 to rotate, and the limiting pieces 230 are driven to rotate in the waist-shaped holes 221 on the annular plates 220 while the planet gears 130 rotate, so that the annular plates 220 are driven to do cyclic reciprocating operation, the planet gears 130 keep synchronism in rotation through the movement of the annular plates 220, further full meshing between the planet gears 130, the sun gear 120 and the toothed rings 140 is maintained, and meanwhile, when the limiting pieces 230 rotate in the waist-shaped holes 221, the bearings 250 change friction between the limiting pieces 230 and the annular plates 220 from sliding friction to rolling friction, so that friction force between the limiting pieces 230 and the annular plates 220 is greatly reduced, and the service life of the limiting pieces 230 and the annular plates 220 is prolonged.

Claims

1. A planetary gear load balancing mechanism, comprising: the device is characterized in that the synchronization module (200) comprises a plurality of bases (210) symmetrically fixed on the end parts of the main body module (100), annular plates (220) arranged on one side of the bases (210), limiting pieces (230) installed on the bases (210) and penetrating through the annular plates (220), bolts (240) meshed on the bases (210) through the limiting pieces (230), bearings (250) fixedly sleeved on the outer side faces of the limiting pieces (230) and connecting columns (260) which are arranged in an annular array and connected with the corresponding annular plates (220).

2. The planet wheel uniform loading mechanism according to claim 1, wherein the main body module (100) comprises a rotating shaft (110), a sun gear (120) fixedly sleeved on the outer side surface of the rotating shaft (110), a plurality of planet gears (130) which are arranged in a ring array and are meshed with the sun gear (120), and a toothed ring (140) which is arranged outside the planet gears (130) and is meshed with the planet gears (130).

3. The planet wheel uniform load mechanism according to claim 2, wherein the top end of the base (210) is eccentrically provided with a positioning groove (211), and a screw hole (212) is formed in the inner bottom wall of the positioning groove (211).

4. The planet wheel load balancing mechanism according to claim 1, wherein the annular plate (220) is provided with a plurality of waist-shaped holes (221) in an annular array, and the number of the waist-shaped holes (221) is equal to the number of the planet gears (130).

5. The planet wheel load balancing mechanism according to claim 1, wherein the cross section of the limiting member (230) is T-shaped, the bottom end of the limiting member (230) penetrates through the waist-shaped hole (221) to be mutually embedded with the positioning groove (211), and the bottom end of the bolt (240) penetrates through the limiting member (230) to be meshed in the screw hole (212).

6. The planet wheel load balancing mechanism according to claim 1, wherein an inner ring of the bearing (250) and an outer side surface of the limiting piece (230) are fixed with each other, an outer ring is tightly attached to an inner wall of the waist-shaped hole (221), and the thickness of the bearing (250) is slightly larger than that of the annular plate (220).

7. A planetary gear load balancing mechanism according to claim 1, wherein the connecting post (260) is arranged in the middle of adjacent planetary gears (130).