纯电动装载机高转速行星式变速箱
By simplifying the planetary gear structure and the design of the fixed-axis reduction mechanism, the problems of large space and high cost of existing pure electric high-speed motor gearboxes have been solved, achieving a compact gearbox structure and low-cost gear shifting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGGONG FUJIAN QIAOXIANG CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-07-17
AI Technical Summary
Existing dedicated gearboxes for high-speed electric motors suffer from problems such as large space occupation, bulky structure, and high manufacturing cost.
It adopts a simplified planetary gear structure combined with a fixed-axis reduction mechanism design, including components such as housing, internal gear ring, planet carrier, sun gear, planet gears, and output shaft. It achieves a large reduction ratio through first-stage, second-stage, and third-stage reduction, and the shifting mechanism is located on the output shaft.
It achieves a compact gearbox structure, small footprint, and low material cost, while providing convenient and safe gear shifting.
Smart Images
Figure CN224515861U_ABST
Abstract
Claims
1. A high speed planetary gearbox for a pure electric loader, characterized in that, It includes a gearbox housing (1), an internal gear ring (2), a planetary carrier (3), a connecting pin (4), an input shaft (5), a sun gear (6), planetary gears (7), a secondary reduction shaft (8), an output shaft (9), a shift sleeve (10), a high-speed gear (11), a low-speed gear (12), and a shifting mechanism (13); the internal gear ring (2) is locked and fixed on the gearbox housing (1), the sun gear (6) is splined with the input shaft (5), the sun gear (6) meshes with the planetary gears (7), and the planetary gears (7) are assembled inside the planetary carrier (3) through the connecting pin (4) to form a primary reduction. The planetary carrier (3) and The reduction ratio of the sun gear (6) is 1+n, where n is the ratio of the number of teeth of the internal gear ring (2) to the number of teeth of the sun gear (6); the planet carrier (3) then transmits power through the driven spur gear of the second-stage reduction shaft (8) to form a second-stage reduction; the driving spur gear of the second-stage reduction shaft (8) then meshes with the driven spur gear of the output shaft (9) to form a third-stage reduction; the shifting mechanism (13) is located on the output shaft (9), and the shifting sleeve (10) is installed in the middle of the output shaft (9). The high-speed gear (11) is installed on one side of the shifting sleeve (10), and the low-speed gear (12) is installed on the other side of the shifting sleeve (10).