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Shafting locking device

A locking device and shafting technology, applied in the direction of electromechanical devices, mechanical energy control, electrical components, etc., can solve the problems of repeated locking, large impact, poor stability, etc., and achieve high reliability and good flexibility , Adjustable locking torque

Active Publication Date: 2020-04-21
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the shortcomings of the above-mentioned locking method, such as large impact, inability to repeatedly lock and poor stability, the present invention provides a shaft locking device

Method used

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Embodiment Construction

[0018] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following in conjunction with specific examples, and with reference to the appended Figure 1-4 , to further illustrate the present invention.

[0019] like Figure 1-3 As shown, the motor 11 is connected to the crank 8 through the motor shaft 9, the two ends of the elastic member 6 are respectively connected to the crank 8 and the pressing rod 4 through the hinge 3 7 and the hinge 2 5, the brake lever 2 is connected to the shaft system 1, and the sensor 12 is connected with the motor 11; the base 10 is used as the main structure of the locking device to fix the motor 11 and the shafting 1, and fix the compression rod 4 through the hinge 3.

[0020] like figure 2 Shown, D 1 is the length of brake lever 2, D 2 is the length of the compression rod 4 from the hinge 3 to the compression point, D 3 is the length from hinge one 3 to hinge two 5 on the compression rod 4...

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Abstract

The invention discloses a shafting locking device. The locking device comprises a shafting, a brake rod, hinges, a pressing rod, an elastic piece, a crank, a motor shaft, a motor, a sensor and a base.The connecting relation of all components is that the motor is connected with the crank through the motor shaft, two ends of the elastic piece are correspondingly connected with the crank and the pressing rod through the hinges, the brake rod is connected with the shafting, and the sensor is connected with the motor; and the base is used as a main body structure of the locking device to fix the motor and the shafting, and the pressing rod is fixed through one hinge. The motor drives the crank to rotate within a certain range, the elastic piece and the pressing rod are controlled to compress and decompress the brake rod, and locking and unlocking of the locking device are achieved; power-off self-locking of the locking device is achieved through setting the angle of the crank when the system is locked; and through setting the lengths of the brake rod, the pressing rod and the crank and the space position of the motor shaft and the rigidity of the elastic piece, the magnitude of the locking torque of the shafting is controlled; and the state feedback of the locking device is achieved through the motor rotation angle measured by the sensor.

Description

technical field [0001] The invention relates to a shaft system locking device, which can repeatedly lock and unlock the shaft system, and is especially suitable for locking the space shaft system. Background technique [0002] In the field of aerospace, the locking methods generally include explosive bolts, shape memory alloy locking devices, hot-knife compression release mechanisms, and electric latch mechanisms. Explosive bolts will produce a large impact during the unlocking process, which may damage aerospace instruments and cause pollution during the unlocking process. The unlocking impact of the shape memory alloy is lower than that of the explosive bolt, but it cannot be reset without human operation, and the unlocking work can only be completed once. The hot knife type compression release mechanism also does not have the function of multiple locking and unlocking. The electric bolt-type mechanism has the function of repeated locking and unlocking, but there is a ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D63/00H02K7/10H02K11/21
CPCF16D63/00H02K7/10H02K11/21
Inventor 蒋仁奎梁伟张昂范斌
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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