A servo electric cylinder structure

By using precisely selected ball screw support bearings and an automatic lubrication system, combined with the chain drive of the servo motor and reducer, the problems of poor axial force capacity and low torsional resistance of the servo electric cylinder are solved, achieving a high-precision, long-life servo electric cylinder structure.

CN224319178UActive Publication Date: 2026-06-02GUANGZHOU R & S MACHINERY EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU R & S MACHINERY EQUIP
Filing Date
2025-07-17
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing servo electric cylinders have poor axial force capacity and low torsional and tensile rigidity, which makes the support bearings prone to breakage, resulting in short service life and poor repeatability.

Method used

Employing precisely selected ball screw pair support bearings, combined with a servo motor, reducer, and chain drive of the ball screw pair, ensures that axial pressure is converted into surface contact load. Through automatic lubrication oil replenishment and feedback from the moving grating ruler, low-speed high-torque output and high-precision displacement are achieved.

Benefits of technology

It improves the stability of repeated pressure application and displacement value of servo electric cylinders, extends the service life, ensures the accuracy and reliability of large-tonnage servo electric cylinders, and avoids the lubrication failure and bearing breakage problems of traditional electric cylinders.

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    Figure CN224319178U_ABST
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Abstract

This utility model discloses a servo electric cylinder structure, belonging to the field of servo electric cylinders. The servo electric cylinder structure includes an independent base plate, with a base fixedly connected to the bottom of the base plate, an electric cylinder housing fixedly connected to the top of the independent base plate, and a supporting top plate fixedly connected to the top of the electric cylinder housing. A drive assembly is disposed on the top of the supporting top plate. This utility model solves the problems of poor axial force capacity, low torsional and tensile rigidity in traditional servo electric cylinders, improving important indicators such as stable repeated pressure application, stable displacement value, and bearing overheating during long-term operation. It mainly addresses the precise selection and matching of the rotating ball screw pair support bearings, accurately measuring various important assembly and matching parameters of each support bearing, and specifically designing automatic lubrication of key components throughout the process, ensuring the accuracy, stability, and reliability of large-tonnage servo electric cylinders and increasing their service life.
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