Automobile large-torque transmission shaft structure

By setting up oil drip holes, drainage grooves and oil outlet groove structures on the drive shaft, the problem of inconvenience of lubricating oil application is solved, and the disassembly of the dustproof sleeve is simplified by installing components, which can effectively apply lubricating oil and convenient maintenance of the dustproof sleeve.

CN223282381UActive Publication Date: 2025-08-29QUICK DIRECT (SHENZHEN) PRECISION MFG CO LTD
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Patent Information

Application Number
CN202422099537.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-28
Publication Date
2025-08-29
Estimated Expiration
2034-08-28

AI Technical Summary

Technical Problem

The existing automobile high-torque transmission shaft is inconvenient when applying lubricating oil, resulting in low application efficiency and difficult disassembly of deformable dust covers, affecting maintenance efficiency.

Method used

The oil drip hole, drainage tank and oil outlet tank structures are designed to facilitate drip, guide and apply lubricant oil, and simplify the fixing and removal of deformable dust covers by installing components.

Benefits of technology

It improves the convenience and efficiency of applying lubricant oil, simplifies the disassembly and assembly process of deformable dustproof sleeves, and improves the maintenance efficiency of the transmission shaft.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of automobile steering transmission shaft parts, and discloses an automobile large-torque transmission shaft structure which comprises a main shaft, first shaft forks are fixedly connected to the two ends of the main shaft respectively, bearings are rotationally connected to the two sides of the interior of each first shaft fork respectively, and a cross shaft is rotationally connected to the interior of each bearing. Bearings are rotatably connected to the two ends of the cross shaft, second shaft forks are rotatably connected to the outer walls of the bearings, oil dripping holes are formed in the two sides of the interior of the cross shaft, drainage grooves in an annular array are formed in the two sides of the interior of the cross shaft, and one sides of the drainage grooves are formed in one sides of the inner walls of the oil dripping holes; oil outlet grooves are formed in the two sides of the interior of the cross shaft. According to the universal joint, lubricating oil can be dripped into the universal joint through the oil dripping hole and then guided by the drainage groove, so that the lubricating oil is smeared to the contact surface of the bearing and the universal joint through the oil outlet groove, the problem that the lubricating oil is inconvenient to smear is solved, and the lubricating oil smearing convenience and smearing efficiency are improved.
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Citation Information

Patent Citations

  • Universal joint for large-torque steering transmission shaft

    CN217519088U