Lead screw transmission assembly

By adopting pulleys and multiple bearing structures in the lead screw transmission assembly, the shaking and wear problems caused by a single bearing are solved, the transmission efficiency and stability are improved, and the service life is extended.

CN222296888UActive Publication Date: 2025-01-03SHANDONG JING MEI SECURITY EQUIP CO LTD
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Patent Information

Application Number
CN202421262322.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-04
Publication Date
2025-01-03
Estimated Expiration
2034-06-04

AI Technical Summary

Technical Problem

The existing lead screw drive assembly is not very effective when used, and a single bearing is prone to cause the lead screw to shake and wear, resulting in a short service life and unstable service life.

Method used

Adopt a structure including pulley, shaft, positioning sleeve, snap ring, bearing, inner ring, outer ring and limit ring. The belt drives the shaft and shaft sleeve to rotate in the shell to reduce wear between the shaft and the shell , and support the bearings through the outer ring and inner ring to avoid shaking and improve transmission effect and stability.

Benefits of technology

It effectively reduces wear between the shaft and the shell, avoids bearing shaking, improves the efficiency and stability of the lead screw transmission, and extends the service life.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222296888U_ABST
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Abstract

The utility model belongs to the technical field of lead screws, and particularly relates to a lead screw transmission assembly which comprises a belt pulley and a shaft rod inserted in an insertion hole of the belt pulley, two positioning shaft sleeves are installed on the outer surface of the shaft rod, and through the arrangement of an inner ring, an outer ring, a bearing and a fixing ring, when the lead screw transmission assembly is used, the positioning shaft sleeves are fixed. The shaft rod is installed in the shell and then fixed through the end cover, the shaft sleeve and the shaft rod are fixed through the clamping ring, then after the shell is installed at a designated position, the belt wheel is driven by the belt to rotate, the belt wheel drives the shaft sleeve on the shaft rod to rotate in the shell, and the shaft rod drives the fixing ring to rotate in the bearing in the shell. Abrasion between the shaft rod and the shell can be reduced through the bearings, the two bearings are supported through the outer ring and the inner ring, shaking of the two bearings is avoided, and therefore the shaft rod can rotate through the belt wheel, the transmission effect of the shaft rod is improved, and meanwhile lead screw transmission is more stable.
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