一种高精度的电子机械制动EMB减速器
By using the planetary-stage components of the EMB reducer as the rear half-shell as the base and the fixed-axis stage components as the gear ring as the base, a single-reference support structure is formed, which solves the problem of concentricity and positional accuracy fluctuations in the EMB reducer, achieving high-precision transmission and reliability, and reducing production costs and cycle time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING HAONENG XINGFU SYNCHRONIZER
- Filing Date
- 2025-10-22
- Publication Date
- 2026-07-17
AI Technical Summary
The concentricity, position, and center distance accuracy of existing EMB reducers in the fixed shaft stage and planetary stage are affected by the housing machining accuracy, assembly accuracy, and material thermal deformation, resulting in fluctuations in concentricity, position, and center distance accuracy, which affects transmission performance and reliability.
By using the rear half-shell of the planetary stage assembly as the mounting base and the gear ring as the mounting base of the fixed-axis stage assembly, a single-reference support structure is formed, eliminating the effects of machining errors and thermal deformation of the front half-shell and achieving high-precision concentricity and positional accuracy between the fixed-axis stage and the planetary stage.
This improved the concentricity and positional accuracy of the fixed-axis stage and the planetary stage, reduced component wear rate, extended the service life of the reducer, and reduced production costs and assembly cycle.
Smart Images
Figure CN224515902U_ABST
Abstract
Claims
1. A high-precision electro-mechanical brake (EMB) reducer, comprising a housing composed of a front half housing and a rear half housing connected together, and further comprising a motor, a fixed shaft stage assembly, a planetary stage assembly and an output shaft, characterized in that: The motor housing is fixedly connected to the outside of the rear housing, and the motor shaft extends into the housing. The fixed-axis stage assembly includes a driving gear, an idler gear, and a driven gear. The idler gear includes a wheel axle and a wheel body mounted on the wheel axle. The planetary stage assembly includes a ring gear, planetary gears, a planet carrier, and a sun gear. The driving gear is fixedly connected to the motor shaft, the idler gear axle is mounted on the gear ring through a support member, the driven gear is connected to the gear ring through a first bearing, and the idler gear meshes with the driving gear and the driven gear respectively. The gear ring is fixed on the rear half-shell, one end of the sun gear is coaxially fixed on the driven gear, and the other end of the sun gear is connected to the planet carrier through a second bearing. The planet carrier is set on the rear half-shell through a third bearing. The axle of the planet gear is rotatably connected to the planet carrier, and the planet gear meshes with both the sun gear and the gear ring. The output shaft is connected to the planet carrier, and the output shaft is arranged coaxially with the sun gear.
2. The high-precision electronic mechanical brake (EMB) decelerator according to claim 1, characterized in that: The gear ring has a side hole on its side for the idler wheel body to be inserted from the side.
3. The high-precision electromechanical braking EMB reducer according to claim 1, characterized in that: The inner hole of the gear ring is larger than the tip circle of the driven gear.
4. The high-precision electronic mechanical brake (EMB) decelerator according to claim 1, characterized in that: Screws for fixing the gear ring are provided on the side of the rear half shell.