一种行星架安装结构

Abstract

本实用新型公开了一种行星架安装结构，涉及行星架技术领域，包括行星架主体，所述行星架主体在行星齿轮两侧对称安装，一侧所述行星架主体中心通过轴承转动安装有中心轴，且中心轴对应行星架主体两侧板之间键连接固定有中心太阳齿轮，所述行星架主体的两侧板相对一侧对应中心太阳齿轮外圈转动安装有多个行星齿轮，且多个行星齿轮均与中心太阳齿轮啮合，采用双侧板开放式结构的行星架主体安装中心太阳齿轮和行星齿轮，变悬臂梁为简支梁，极大改善了受力，通过球窝对接凹槽和球面对接插块的对接配合，使得行星轮轴两端被支撑的同时，自动补偿各行星轮之间的不同心误差，使载荷分布均匀。

Claims

1. A planetary carrier mounting structure, characterized in that: The system includes a planetary carrier body (1), which is symmetrically mounted on both sides of the planetary gears. A central shaft (10) is rotatably mounted on the center of one side of the planetary carrier body (1) via a bearing. A central sun gear (2) is fixedly connected between the central shaft (10) and the two side plates of the planetary carrier body (1). Multiple planetary gears (3) are rotatably mounted on the opposite side of the two side plates of the planetary carrier body (1) corresponding to the outer ring of the central sun gear (2). All the multiple planetary gears (3) mesh with the central sun gear (2). The center of the wheel (3) is mounted with a planetary gear shaft (4) through a bearing. Both ends of the planetary gear shaft (4) are threaded through the planetary carrier body (1) and connected with fastening nuts (9). The inner walls of both sides of the planetary carrier body (1) are provided with multiple pairs of mounting through holes (11) corresponding to the outer ends of the planetary gear shaft (4). The inner side of the mounting through holes (11) is provided with ball-and-socket mating grooves (5). The journals at both ends of the planetary gear shaft (4) are fitted with ball-and-socket mating blocks (6). The ball-and-socket mating blocks (6) on both sides are inserted into the ball-and-socket mating grooves (5).

2. The planetary carrier mounting structure of claim 1, wherein: The planetary gear shaft (4) is a stepped shaft, and the spherical contact block (6) is interference-fitted with the outer end of the planetary gear shaft (4). The shaft section in the middle of the planetary gear shaft (4) that supports the planetary gear (3) is a smooth shaft, and its diameter is greater than the diameter of the journals at both ends.

3. The planetary carrier mounting structure of claim 1, wherein: The planetary gear shaft (4) has a pre-tightening adjustment cover (8) threaded at both ends of its outer wall, and a disc spring assembly (7) is sleeved between the pre-tightening adjustment cover (8) and the outer spherical contact block (6).

4. The planetary carrier mounting structure of claim 3, wherein: There is a gap between the pre-tightening adjustment cover (8) and both sides of the planetary gear (3).

5. The planetary carrier mounting structure of claim 1, wherein: The spherical contact block (6) is made of bimetallic composite material, with the inner layer being high-hardness alloy steel and the outer layer being self-lubricating copper alloy.

6. The planetary carrier mounting structure of claim 1, wherein: The ball-and-socket joint groove (5) is surface hardened to a hardness greater than HRC55 and coated with a solid lubricating film.

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