Differential, powertrain, and vehicle
By setting up lubrication channels and branch channels in the differential, the meshing and rotating connection of the planetary gears and half-shaft gears are directly lubricated, solving the problem of poor lubrication effect. This achieves the stability and reliability of the differential under high-speed differential and high-torque conditions, and reduces the difficulty of machining and assembly.
CN224533425UActive Publication Date: 2026-07-21WEICHAI POWER CO LTD +1
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WEICHAI POWER CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
Existing differentials have poor lubrication under high speed and high torque conditions, leading to wear or burning, and are difficult to manufacture and assemble.
Method used
A differential was designed that directly lubricates the meshing and rotating connection points of the planetary gears and half-shaft gears by setting lubrication oil passages and branch oil passages in the housing, and avoids friction by fixing the gear pads to the housing, thereby reducing the number of oil passages and reducing the difficulty of machining and assembly.
Benefits of technology
It improves the lubrication effect of the differential, avoids wear or burning, reduces processing and assembly costs, and improves the stability and reliability of the differential.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224533425U_ABST
Abstract
The utility model discloses a differential mechanism, power system and vehicle belong to vehicle technical field. The utility model discloses differential mechanism, power system and vehicle, can carry out lubrication to the meshing of planetary gear and half axle gear and the rotary joint of planetary gear and pin axle assembly through lubricating oil channel, and carry out lubrication to gear pad through the oil channel of oil supply of communication with lubricating oil channel, can improve the lubrication effect of differential mechanism, even if vehicle works in high speed difference, big torque state (such as vehicle is trapped in the land of mire), also can not lead to differential mechanism to appear abrasion or ablation. Meanwhile, lubricating oil channel and oil channel of oil supply all are located in output half axle, and oil channel of oil supply is communicated with lubricating oil channel, can reduce the number of oil channel, reduce the difficulty and cost of differential mechanism processing and assembly.
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