A hoist pulley tensioner

By designing a belt pulley tensioning device for the hoist, and utilizing the combination of a screw and double nuts and an electric push rod, the problem of difficult replacement caused by the fixed position of the belt pulley in the existing hoist was solved, thus achieving high-precision adjustment of the belt pulley and stable equipment operation.

CN224433330UActive Publication Date: 2026-06-30GUANGDONG GUANGQING METAL ROLLING CO +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG GUANGQING METAL ROLLING CO
Filing Date
2025-09-26
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The fixed position of the upper pulley of the existing hoist makes it difficult to replace the pulley and belt, affecting the operating efficiency of the equipment.

Method used

A belt pulley tensioning device for a hoist was designed. The height of the upper belt pulley is precisely adjusted by the cooperation of a screw and double nuts. Combined with an electric push rod and a guide mechanism, the relative position of the upper and lower belt pulleys is kept stable. The adjustment method is flexible and convenient.

Benefits of technology

It achieves high-precision adjustment of the pulleys, reduces the impact of equipment vibration, improves transmission efficiency, and extends the service life of belts and pulleys.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a belt pulley tensioning device for a hoist, including a frame, a top cover, and a lower belt pulley bearing seat. The top cover is detachably connected to the top of the frame, and a belt pulley bearing seat guard plate is slidably mounted on the surface of the frame. An upper belt pulley bearing seat is provided on the surface of the belt pulley bearing seat guard plate. This utility model achieves precise adjustment of the height of the upper belt pulley through the cooperation of screw A and double nuts (nut A and nut B). After adjustment, the double nuts lock together with screw B and nut C for secondary reinforcement to prevent positional deviation. At the same time, the adjustment of the upper belt pulley can be completed simply by loosening the wrench, rotating the screw, and tightening the nuts. The two adjustment methods can be used alone or in combination, which can meet the needs of fine adjustment for slight belt slack and also meet the needs of large adjustment scenarios when replacing the belt. The guide mechanism distributes the weight load of the upper belt pulley assembly, reducing the stress on the adjustment mechanism, thereby adjusting the belt tension or replacing the belt.
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