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Fast tightening device for screw pair in small space

A thread pair, small space technology, applied in the direction of wrench, manufacturing tools, wrench, etc., can solve the problems of difficulty in tightening nuts, low tightening efficiency, difficulty in applying tightening torque, etc., to achieve improved tightening efficiency, low cost, and easy installation The effect of the lanyard

Active Publication Date: 2016-11-16
北京实验工厂有限责任公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem solved by the technology of the present invention is: to overcome the deficiencies of the prior art, to provide a fast tightening device for thread pairs in a small space, which solves the problems of difficulty in tightening nuts in a narrow space, low tightening efficiency and difficulty in applying tightening torque

Method used

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  • Fast tightening device for screw pair in small space
  • Fast tightening device for screw pair in small space
  • Fast tightening device for screw pair in small space

Examples

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Effect test

Embodiment

[0050] The present invention designs two parts, the sleeve and the quick loading and unloading wrench, figure 1 Structural diagram when using the present invention.

[0051] The process of using this set of devices to install and remove self-sealing joints:

[0052] (1) in figure 1 As shown, put 2 sleeves on the 3 self-sealing nuts of the servo mechanism 4 redundant tubes. Image 6 The inner hexagon end of the sleeve shown is 47mm and fits with 3 self-sealing nuts, and the opening of the sleeve is 32mm just enough to pass through figure 1 4 redundant tubes in.

[0053](2) in figure 1 As shown, place 1 quick-release wrench over the socket. Figure 5 The socket 46mm hex end shown mates with the wrench head.

[0054] (3) image 3 and Figure 4 It is a sketch of the overall structure of the sleeve, and its outer diameter, inner hole, outer hexagon, inner hexagon, small hole, height, chamfering, rounding and other design are reasonable.

[0055] (4) When tightening the sel...

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Abstract

A fast tightening device for a screw pair in small space comprises a sleeve and a fast dismounting wrench and is used for tightening and dismounting a redundant tube self-sealing nut between two servo mechanisms in a new-generation carrier rocket servo system. In a new-generation carrier rocket servo product, mounting space for a redundant tube self-sealing joint is small, then one open transfer sleeve is designed skillfully, a redundant tube is avoided, the sleeve is clamped to the nut conveniently, and the tightening space for the wrench is increased; meanwhile, opening appearance and size of the fast tightening wrench are designed specially, so that the nut can be tightened when the wrench clamps the transfer sleeve once, the position of the wrench relative to the sleeve is changed counterclockwise, and the nut is tightened clockwise. During dismounting, the wrench direction is changed, the position of the wrench relative to the sleeve is changed clockwise, and the nut is dismounted counterclockwise. The fast tightening device can be extensively applied to other conditions of fast mounting and dismounting of nuts in small space.

Description

technical field [0001] The invention relates to a fast tightening device for thread pairs in a small space, belonging to the technical field of assembly tools. Background technique [0002] The first-stage servo mechanism of the new-generation launch vehicle adopts a redundant design, and the high and low pressure oil circuits of the two servo mechanisms are connected through the high and low pressure redundant pipes. The high and low pressure interfaces of the servo mechanism are self-sealing joints, and the two ends of the high and low pressure redundant pipes are corresponding self-sealing joints. The self-sealing joint connection between the redundant pipe and the servo mechanism is realized by tightening the outer nut, and at the same time, a certain tightening torque needs to be applied to the outer nut. [0003] Due to space constraints, the servomechanism has a compact design. The installation space of the redundant pipe and the self-sealing joint of the servo mech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/48
CPCB25B13/48
Inventor 丁勇吕凤实马俊杰刘伟王宁李杰
Owner 北京实验工厂有限责任公司
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