A kind of electric hoist lifting reducer exhaust device

By connecting the internal and external exhaust pipes, the oil leakage problem of the electric hoist lifting reducer in the rotating installation direction is solved by utilizing the principle of communicating vessels, ensuring normal exhaust and sealing of the reducer in different installation directions.

CN224742884UActive Publication Date: 2026-09-11NUCLEON XINXIANG CRANE
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Patent Information

Application Number
CN202521747475.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-18
Publication Date
2026-09-11
Estimated Expiration
2035-08-18

AI Technical Summary

Technical Problem

Existing electric hoist lifting reducers are prone to oil leakage when rotating in the installation direction, and the traditional method of adjusting the position of the exhaust cap has not effectively solved the oil leakage problem.

Method used

The internal and external exhaust pipes are connected by a connecting pipe, and the gas inside the reducer housing is discharged using the principle of communicating vessels, ensuring normal exhaust and no oil leakage whether installed vertically or horizontally.

Benefits of technology

This technology enables normal venting of the reducer under different installation orientations, avoids oil leakage, and improves the sealing and reliability of the reducer.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model discloses a kind of electric hoist hoisting speed reducer exhaust devices, including outer exhaust pipe, connecting pipe and inner exhaust pipe;The inner exhaust pipe is vertically arranged in the reducer box, outer exhaust pipe is vertically arranged outside the reducer box, the opening of outer exhaust pipe and inner exhaust pipe is all upwards, the opening of inner exhaust pipe is higher than the oil level in the reducer box, outer exhaust pipe and inner exhaust pipe are communicated by connecting pipe, and connecting pipe penetrates the sidewall of the reducer box.The utility model utilizes the principle of communicating vessel to discharge gas inside the reducer box through outer exhaust pipe, and normal exhaust without oil leakage can be ensured when the reducer is vertically or horizontally installed, solving the oil leakage problem caused by the rotation direction when installation for traditional speed reducer.
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