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Locking and automatic unlocking mechanism for two-dimensional tracking rotating-tables

An automatic unlocking and tracking turntable technology, applied in the direction of the locking device when the movable parts of the measuring device are not in use, can solve the problem of small locking torque and cannot be provided, and achieve high reliability, simple and reliable structure, pollution-free safety The effect of reliable recycling

Active Publication Date: 2012-10-31
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0003] In order to solve the technical problems of the existing locking methods such as small locking torque and inability to provide auxiliary support stiffness, the present invention provides a two-dimensional tracking turntable locking and automatic unlocking mechanism, which adopts a locking method of explosive bolt pyrotechnics, Taking into account the locking and automatic unlocking of the rotary mechanical limit of the turntable, simple and reliable

Method used

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  • Locking and automatic unlocking mechanism for two-dimensional tracking rotating-tables
  • Locking and automatic unlocking mechanism for two-dimensional tracking rotating-tables
  • Locking and automatic unlocking mechanism for two-dimensional tracking rotating-tables

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Embodiment Construction

[0018] The invention is mainly used for the locking of the two-dimensional tracking turntable in the non-working state, can realize automatic unlocking according to the instruction, and is in the working state after unlocking. The mechanism and its use are illustrated below in conjunction with the accompanying drawings.

[0019] see figure 1 , the fixed support is fixedly connected with the installation datum, which is used to fix the explosion bolt and play the role of the mechanical limit of the turntable; the explosion bolt is the main force-bearing part of the mechanism, and bears the rotation moment and bending moment caused by vibration; the inside of the lock nut While the thread is firmly connected to the explosion bolt, the micro switch is pressed down through the micro switch mounting seat to generate a locking signal (indicating the current locking state), and its external thread is firmly connected to the buffer ring.

[0020] The rotating part and the fixed suppo...

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Abstract

The invention provides a locking and automatic unlocking mechanism for two-dimensional tracking rotating-tables, which is used for solving the technical problems that the conventional locking mode is small in locking torque, and can not provide auxiliary support stiffness, and the like. The locking and automatic unlocking mechanism for two-dimensional tracking rotating-tables comprises a fixed support, an explosion bolt, a locking nut and a microswitch assembly, wherein the microswitch assembly is used for emitting status signals of the explosion bolt, and the microswitch assembly comprises a microswitch installing base (sleeved on a shaft of the explosion bolt) and a microswitch (arranged on the microswitch installing base); and a rotating part is connected in series with and in threaded fixing with the fixed support through the explosion bolt, the fixed support and the microswitch installing base are respectively located on both sides of the rotating part, and the locking nut locks the microswitch installing base, the rotating part and the fixed support together. The mechanism disclosed by the invention concurrently has the locking and automatic unlocking functions of rotating mechanical limitation of rotating-tables; the mechanism is simple and reliable, and integrated in design; the locking only limits the rotating DOF (degrees of freedom); and the mechanism has no external force on a precision rotating shaft system.

Description

technical field [0001] The invention relates to a positioning locking and unlocking mechanism of a rotating device. Background technique [0002] At present, the locking of the degree of freedom of rotation of photoelectric measuring equipment is realized by locking screws or screw rods, and the locking and unlocking operations are completed manually by humans. With the wide-scale application of two-dimensional tracking turntables in the aerospace field, it has become difficult or even impossible to open the rotation degree of freedom of the turntable through manual operation. Before the installation platform enters the working state, if the rotation degree of freedom of the turntable is not locked, the optical equipment mounted on the turntable will be damaged due to vibration and impact. Therefore, the rotation degree of freedom of the turntable must be locked to protect the mounted optical equipment. After the installation platform enters the working state, the degree o...

Claims

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Application Information

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IPC IPC(8): G01D11/22
Inventor 李治国王振宇刘朝晖
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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