Linear actuator and robot
By adding a lubricating medium and a sealing structure to the linear actuator, the problem of severe bearing overheating was solved, and heat was effectively dispersed and transferred, thereby improving the actuator's performance and lifespan.
CN223834518UActive Publication Date: 2026-01-27苏州卓誉电气技术有限公司
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Patent Information
- Application Number
- CN202520717249.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-04-16
AI Technical Summary
Technical Problem
In existing linear actuators, the bearings generate significant heat when subjected to axial and radial pressures, and the heat dissipation problem has not been effectively solved.
Method used
In linear actuators, by adding a lubricating medium to the rolling element surface of the radial thrust bearing and setting a lubrication area between the bearing and the lead screw and nut, the heat generated by friction is reduced by using a sealing structure and clearance connection design, and the heat is transferred through the main housing to avoid heat accumulation.
Benefits of technology
This effectively reduces heat buildup in the bearings of the linear actuator, maintaining good working performance and service life.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN223834518U_ABST
Abstract
The utility model belongs to the technical field of intelligent manufacturing, and relates to a linear actuator and a robot. In the linear actuator, roller areas of a pair of centripetal thrust bearings (31) jointly form a first lubricating area, a second lubricating area is formed between a lead screw (22) and a nut (21), and the centripetal thrust bearings (31), the lead screw (22) and the nut (21) reduce heat generated by friction through lubrication. Moreover, the first lubricating area and the second lubricating area are adjacent and are communicated through the first gap (41) and the second gap (42) reserved on one side of the inner end wall of the front flange (12), so that a sealing structure is reduced, heat between the first lubricating area and the second lubricating area can be dispersed, heat can be transferred to the outside through the main shell (11), and the service life of the main shell (11) is prolonged. Therefore, local heat accumulation of the linear actuator at the centripetal thrust bearing (31) can be avoided, and good working performance of the linear actuator can be maintained.
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