Ultrasonic high-strength bolt stress detection device applied to a wind turbine generator
By designing an ultrasonic high-strength bolt stress testing device, a gas-driven device and roller structure are used to achieve uniform application of coupling agent, solving the problem of uneven manual application and improving the accuracy and efficiency of testing.
CN115493732BActive Publication Date: 2026-06-30이너 몽골리아 일렉트릭 파워 그룹 컴퍼니 리미티드 이너 몽골리아 일렉트릭 파워 리서치 인스티튜트 브랜치
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 이너 몽골리아 일렉트릭 파워 그룹 컴퍼니 리미티드 이너 몽골리아 일렉트릭 파워 리서치 인스티튜트 브랜치
- Filing Date
- 2022-09-29
- Publication Date
- 2026-06-30
AI Technical Summary
Technical Problem
Uneven application of coupling agent by manual means leads to inaccurate measurements when ultrasonically inspecting high-strength bolts, affecting inspection efficiency and accuracy.
Method used
An ultrasonic high-strength bolt stress testing device was designed, which uses an air-driven device and a roller structure to achieve uniform application of coupling agent. The device includes a fixed plate, a movable plate, a roller, an airbag, and an air-driven device. The coupling agent is uniformly coated on the surface of the high-strength bolt by the rotation and squeezing action of the airbag.
Benefits of technology
This method enables uniform application of coupling agent to the surface of high-strength bolts, improving the accuracy and efficiency of test results.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN115493732B_ABST
Abstract
This invention relates to the field of high-strength bolt testing technology, specifically to an ultrasonic high-strength bolt stress testing device for wind turbine generators. It includes a fixed plate, with a first roller and a second roller rotatably connected to the underside of the fixed plate. An ultrasonic testing head is fixed between the first and second rollers. A first airbag is installed between the fixed plate and a movable plate. A storage tube is fixed inside the second roller, and a cotton sleeve communicating with the storage tube is fitted over the outside of the storage tube. A pneumatic drive device is fixed to one end of the second roller, and a spiral-shaped second airbag is fixed to the rotating part of the pneumatic drive device. The second airbag is fitted over the cotton sleeve and located inside the second roller. Multiple perforations are formed on the wall of the second roller, and the second airbag seals these perforations. This invention can effectively expel the coupling agent adsorbed inside the cotton sleeve, improving the accuracy and efficiency of high-strength bolt flaw detection results.
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