Weather-proof precise photo-thermal push rod

By employing worm gear mechanical transmission and a multi-layer sealing structure, the accuracy and reliability issues of hydraulic push rods in harsh environments are solved, enabling high-precision micro-adjustment and low-cost maintenance, making it suitable for concentrated solar power generation and solar tracking systems.

CN224453572UActive Publication Date: 2026-07-03DONGGUAN TOMUU ACTUATOR TECH CO LTD
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Patent Information

Application Number
CN202522106767.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-30
Publication Date
2026-07-03
Estimated Expiration
2035-09-30

AI Technical Summary

Technical Problem

Hydraulic actuators suffer from insufficient motion accuracy and poor reliability in harsh environments, and are complex and costly to maintain, making it difficult to meet the reliability and fine-tuning requirements of solar thermal power generation and solar tracking systems.

Method used

It adopts worm gear mechanical transmission, and the inner tube forms a dynamic seal with the outer tube through lip seal and Y-shaped seal. The load force is distributed by bearing housing, and combined with anti-loosening components and external magnetic induction switch, it can achieve high-precision non-contact adjustment and multi-layer protection.

Benefits of technology

It improves the motion accuracy and service life of the push rod in harsh environments, simplifies the maintenance process, reduces maintenance costs, and meets the high reliability and fine-tuning requirements of solar thermal power generation and solar tracking systems.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model belongs to the technical field of push rods, and particularly discloses a weather-proof precision photo-thermal push rod which comprises a box body, the output end of the box body is rotationally connected with a lead screw, a worm gear is sleeved on the portion, located in the box body, of the lead screw, a worm is rotationally connected in the box body and meshed with the worm gear, and an inner pipe and an outer pipe are sequentially sleeved on the lead screw from inside to outside. The lead screw is connected with the inner pipe through a sliding seat, the inner pipe penetrates through a fixing seat at the top of the outer pipe and is in dynamic sealing connection with the fixing seat, the lead screw is fixedly sleeved with an anti-loosening assembly and a shaft sleeve assembly in sequence in the extension direction of the inner pipe, the shaft sleeve assembly is arranged on the anti-loosening assembly in an overlapped mode, and a bearing seat is fixedly connected to the position, opposite to the shaft sleeve assembly, in the outer pipe in a threaded mode. The bearing seat sleeves the shaft sleeve assembly, and the two ends of the bearing seat are rotationally connected with the shaft sleeve assembly through thrust bearings. The worm gear and the worm are adopted to drive the lead screw to rotate, and a dynamic sealing structure and a load force dispersion structure are matched, so that the motion precision and reliability of the push rod in a severe environment are improved, and the service life is prolonged.
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