Hydraulic anti-loosening bolt and hydraulic anti-loosening bolt and nut fastening device

A fastening device and anti-loosening technology, applied in the direction of threaded fasteners, bolts, nuts, etc., can solve the problems of loosening of nuts and bolts, affecting work efficiency, waste, etc.

Active Publication Date: 2021-03-09
天海航空发动机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The actual use shows that the nut thread pitch is shortened, the double bolts cooperate with self-locking, the spring washer is tightened, etc. do have certain locking effects, but when encountering high vibration frequency and long construction period, the nuts and bolts will inevitably loosen.
However, if the bolts are welded dead, the bolts are damaged and the threads are unscrewed, when the mechanical device is to be disassembled, the bolts must be cut off first, and then the nuts should be loosened, which will greatly affect the work efficiency and cause unnecessary waste.

Method used

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  • Hydraulic anti-loosening bolt and hydraulic anti-loosening bolt and nut fastening device
  • Hydraulic anti-loosening bolt and hydraulic anti-loosening bolt and nut fastening device
  • Hydraulic anti-loosening bolt and hydraulic anti-loosening bolt and nut fastening device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] Such as figure 2 As shown, a hydraulic anti-loose loose bolt includes a nut 101, a screw 102, an outer thread 103. The nut 101 is disposed on the screw 102. The outer thread 103 is disposed on the outer surface of the screw 102. The anti-loose bolt 1 also includes a through hole 104 and a receiving chamber 105. The through hole 104 is opened on the upper surface of the nut 101. The accommodating chamber 105 is opened at the lower surface of the nut 101. The bottom end of the through hole 104 is in communication with the top end of the accommodating chamber 105. The through hole 104, the accommodating chamber 105 is located in a nut 101 between the outer wall of the screw 102 and the outer wall of the nut 101. Hydraulic anti-pore system 2 is also provided in the accommodating cavity 105.

Embodiment 2

[0090] Such as figure 1 As shown, a hydraulic anti-loosening bolt, a nut fastening device, which includes a procedure bolt 1 and a nut 3. The anti-loosening bolt 1 is assembled with the nut 3 through the outer thread 103. The anti-loose bolt 1 includes a nut 101, a screw 102, an external thread 103. The nut 101 is disposed on the screw 102. The outer thread 103 is disposed on the outer surface of the screw 102. The nut 3 includes a nut body 301, a threaded hole 302, and an internal thread 303. The threaded hole 302 is disposed on the nut body 301. The internal thread 303 is disposed on the inner wall of the threaded hole 302. The anti-loose bolt 1 also includes a through hole 104 and a receiving chamber 105. The through hole 104 is opened on the upper surface of the nut 101. The accommodating chamber 105 is opened at the lower surface of the nut 101. The bottom end of the through hole 104 is in communication with the top end of the accommodating chamber 105. The through hole 104,...

Embodiment 3

[0092] Such as Figure 4 As shown, Embodiment 2 is repeated, except that the hydraulic anti-pillar system 2 includes a housing 201, an inner casing 202, a pressing device 203, a pin shaft 204, and an elastic member 205. The inner casing 202, and the pressing device 203 are each disposed in the inner cavity of the outer casing 201, and the pressing device 203 is set to the upper portion of the inner casing 202. The pin shaft 204, the elastic member 205 is provided in the inner cavity of the inner casing 202, and the elastic member 205 is located above the top end of the pin shaft 204.

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PUM

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Abstract

The invention discloses a hydraulic anti-loosening bolt and a hydraulic anti-loosening bolt and nut fastening device. A hydraulic anti-loosening column system is arranged in a nut of the bolt, an adjustable pin shaft is arranged on the hydraulic anti-loosening column system, and the purpose that an anti-loosening mechanism of the bolt fixes the bolt to prevent loosening of the bolt is achieved bycontrolling the pin shaft to pop up and contract. The nut and the hydraulic anti-loosening column system are controlled simultaneously through a specially-designed tightening device, and then loosening and tightening action of the bolt is achieved. The hydraulic anti-loosening bolt and nut fastening device is simple in structure, easy to operate, good in anti-loosening effect and capable of beingreused.

Description

Technical field [0001] The present invention relates to a fastening device, and more particularly to a hydraulic anti-loosening bolt and a hydraulic anti-loosening bolt, a nut fastening device, belonging to a general mechanical technology. Background technique [0002] With the booming of my country's machinery, the fastening of mechanical mechanisms in many machinery systems requires assembly in replaceable form. The nut, bolt is the most widely used detachable fastening device. The application of the detachable fastening device can greatly reduce the production difficulty of the mechanical device and improve the repair efficiency of the mechanical device. [0003] In practical applications, the use scenarios of the nut and bolt fastening device include many high-frequency vibration conditions, ordinary nuts, bolt devices under high-frequency vibration, especially on high-speed railway high-speed rail bodies or engines The application will make a loose situation. It has a great ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/24F16B39/28F16B23/00B25B27/14
CPCF16B39/24F16B39/28F16B23/0007F16B23/0069B25B27/14
Inventor 朱振武谭强斌朱志胤
Owner 天海航空发动机有限公司
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