挖掘装载机变速箱变速泵驱动结构
By setting grooves and bosses on the drive shaft and the drive gear for a mating connection, the assembly difficulties caused by the high precision of spline machining are solved, achieving low-cost and high-efficiency assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGGONG FUJIAN QIAOXIANG CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-17
AI Technical Summary
The spline machining accuracy problem in the transmission pump drive structure of existing excavator loaders leads to assembly difficulties, and the spline machining requires custom-made tools, which increases the machining cost.
The drive shaft has a groove that connects to the boss on the drive gear, replacing the spline connection. This achieves power transmission, simplifies machining, and improves assembly efficiency.
It reduced manufacturing costs, simplified the assembly process, and improved assembly efficiency.
Smart Images
Figure CN224515859U_ABST
Abstract
Claims
1. A drive structure for a transmission pump of an excavator loader, comprising a drive shaft (1), an oil seal (2), a positioning support sleeve (3), a drive gear (4), a driven gear (5), a pump body (6), a guide wheel seat (7), and screws (8); the drive gear (4) and the driven gear (5) are assembled inside the pump body (6) to realize the function of the transmission pump sucking and pumping oil; the pump body (6) is locked and fixed to the guide wheel seat (7) by six evenly distributed screws (8); a positioning support sleeve (3) and an oil seal (2) are provided at the front end of the pump body (6), the positioning support sleeve (3) plays a role in positioning and supporting the drive shaft (1), and the oil seal (2) realizes the oil sealing function of the overall structure; characterized in that, The right end of the drive shaft (1) has two grooves (1.1) arranged symmetrically along the circumferential direction; the inner hole of the drive gear (4) has two bosses (4.1) arranged symmetrically to cooperate with the grooves (1.1) on the hole wall near the right end.