An electric push cylinder
By using an automatic sealing structure and a gear set to transmit torque, the problem of sealing failure of the electric cylinder under harsh working conditions has been solved, achieving higher sealing performance and service life.
CN121367362BActive Publication Date: 2026-07-10WUXI HONGBA MECHANICAL ELECTRICAL EQUIP
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUXI HONGBA MECHANICAL ELECTRICAL EQUIP
- Filing Date
- 2025-10-30
- Publication Date
- 2026-07-10
AI Technical Summary
Technical Problem
Existing electric actuator cylinders suffer from seal failure under harsh operating conditions, allowing moisture to enter the interior and affecting the accuracy of the thrust stroke and service life.
Method used
It adopts an automatic sealing structure, including shell seal, cylinder seal and end seal. It uses temperature change and magnetic attraction to achieve automatic sealing. Combined with gear set to transmit torque to lead screw, it ensures sealing effect.
Benefits of technology
It improves the sealing performance of the electric cylinder in harsh environments, reduces water vapor ingress, extends service life, and improves thrust accuracy.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN121367362B_ABST
Abstract
This application relates to the field of electric actuator technology, and in particular to an electric actuator cylinder, comprising a housing and a protective cover. A mounting base is provided between the housing and the protective cover. A drive motor is mounted inside the housing and on the mounting base. A housing seal is provided between the housing and the protective cover, which can automatically seal the housing and the protective cover according to temperature changes. The housing has a hollow outer cylinder with open ends. A lead screw is rotatably mounted on the mounting base. The outer cylinder is sleeved on the lead screw. A transmission port for the lead screw to pass through is provided on the housing. A cylinder seal is provided between the housing and the outer cylinder for sealing. A drive seat is slidably mounted inside the outer cylinder along the axis of the lead screw. The drive seat is threaded to the lead screw. A movable cylinder is provided on the drive seat and coaxially sleeved on the lead screw. An end seal is provided between the movable cylinder and the outer cylinder for sealing. A gear set is provided inside the protective cover. This application has the effect of improving the sealing performance of the electric actuator cylinder.
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