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Hollow rolling driving mechanism for low-temperature environment

A driving mechanism and low-temperature environment technology, which is applied in the field of wind tunnel testing, can solve problems such as transmission accuracy being affected by backlash, low transmission efficiency, and failure of the driving device and bearing group.

Active Publication Date: 2021-04-20
INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the balance and other sensor signal cables cannot pass through the mechanism; the efficiency of the transmission device is low, and the transmission accuracy is affected by the backlash; the drive device and bearing group cannot work at low temperatures

Method used

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  • Hollow rolling driving mechanism for low-temperature environment
  • Hollow rolling driving mechanism for low-temperature environment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The outer diameter of the middle bracket 5 in this embodiment is Φ440mm and the length is 1500mm. The integrated actuator 10 is arranged in the inner cavity of the middle bracket 5, and a supporting device 15 is coaxially arranged along the front end of the middle bracket 5. The integrated actuator 10 and The supporting device 15 is connected by a connecting device arranged along the axis of the integrated actuator 10, and a heating rod group is also arranged inside the connecting device. The integrated actuator 10 drives the connecting device to rotate around the integrated actuator 10 along the axis, and drives the hollow rolling drive mechanism for low temperature environment to roll within the range of -180° to +180°.

[0037] The integrated actuator 10 has an integrated structure, and the required high-precision and high-torque transmission can be achieved through the connection of the following related parts, specifically:

[0038] The bearing block 4 is fixed on ...

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Abstract

The invention discloses a hollow rolling driving mechanism for a low-temperature environment. The hollow rolling driving mechanism for the low-temperature environment comprises a middle support, an integrated actuator, a supporting device, a connecting device and a heating rod set which are coaxially arranged. The integrated actuator is arranged in an inner cavity of the middle support, the supporting device is arranged at the front end of the middle support, the integrated actuator is connected with the supporting device through the connecting device, and the heating rod set is arranged on the inner side of the connecting device. According to the hollow rolling driving mechanism for the low-temperature environment, the mechanism size is reduced, the problems of difficult cable leading-out, low-temperature work and the like are solved, and the hollow rolling driving mechanism for the low-temperature environment is a rolling mechanism capable of achieving accurate transmission, positioning and locking within a large temperature range and under the large dynamic load condition.

Description

technical field [0001] The invention belongs to the technical field of wind tunnel tests, and in particular relates to a hollow rolling drive mechanism for low-temperature environments. Background technique [0002] The rolling driving mechanism is installed in the cavity of the middle bracket, and is used to connect the supporting device of the model and the balance, and drives the supporting device to complete the rotation around the axis of the rolling mechanism. The rolling drive mechanism is mainly composed of a driving device and a transmission device. At present, the rolling drive mechanism mostly adopts a transmission structure such as a motor to drive a worm gear or a bevel gear. The disadvantage is that the signal cables of the balance and other sensors cannot pass through the inside of the mechanism; the efficiency of the transmission device is low, and the transmission accuracy is affected by the backlash; the drive device and the bearing group cannot work at lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/02G01M9/04G01M9/06H02K5/173H02K7/10H02K55/00
CPCY02E40/60
Inventor 赵宽鲍禄强任国柱马东平杨晓峰李多祝长江尉成果张伟刘煜彤
Owner INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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