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Grating smart ring groove rivet

A technology of ring groove rivets and smart rings, which is applied to rivets, measurement of the change force of the optical properties of the material when it is stressed, and measurement devices, etc., to save costs, improve service life, and reduce strength damage.

Pending Publication Date: 2020-08-07
MEISHAN CRRC FASTENING SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to provide a ring groove rivet that can detect the fastening axial force in real time, so as to solve the problem of real-time detection of the fastening axial force of the ring groove rivet in the process of installation and use in the prior art

Method used

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  • Grating smart ring groove rivet
  • Grating smart ring groove rivet
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Embodiment Construction

[0019] The present invention is further described below in conjunction with specific embodiment, and specific embodiment is the further description of the principle of the present invention, does not limit the present invention in any way, and the identical or similar technology of the present invention all does not exceed the scope of protection of the present invention.

[0020] In conjunction with the accompanying drawings.

[0021] The present invention includes a grating sensor 1 and a ring groove rivet 2; wherein the grating sensor 1 is composed of a grating sensor body 101, an end fixing device 102, an outer stainless steel protective cover 103, a fixed adhesive layer 104, etc., and the grating sensor body 101 and the outer stainless steel The protective cover 103 is tightly integrated through the fixed adhesive layer 104, which can protect the grating sensor body 101 and improve the service life of the grating sensor 1;

[0022] The end fixing device 102 is provided wi...

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Abstract

The invention discloses a grating smart ring groove rivet which comprises a grating sensor and a ring groove rivet body; a blind hole with a step structure is formed in the position, from a head to arivet bar, of the center of a rivet shaft of the ring groove rivet body; the measuring end of the grating sensor is located in the blind hole and is in contact with the bottom of the blind hole; and the grating sensor is provided with an end fixing device to be in threaded connection and fixing with a step portion of the blind hole of the ring groove rivet body. By adopting the grating smart ringgroove rivet provided by the invention, the problem that axial force cannot be monitored in real time in the installation and use process of the ring groove rivet is solved; and meanwhile, the servicelife of the sensor is prolonged through the grating sensor armored by a stainless steel protective sleeve; as the grating sensor and the ring groove rivet are in threaded connection, the grating sensor is detachable and used for multiple times, the use rate of the grating sensor is increased, and the cost can be saved; and with arrangement of the grating sensor, strength damages to the ring groove rivet can be reduced, and the grating sensor is suitable for the tail pull-off type ring groove rivet at the same time to realize monitoring of the axial force in the riveting process.

Description

technical field [0001] The invention belongs to the technical field of riveting, in particular to the design and manufacture of a pull rivet riveting fastener, which belongs to the riveting type (B21J) and fastener type (F16B) of metal machining, and particularly relates to a grating intelligent ring groove rivet . Background technique [0002] The detection of the axial force of fasteners is a common problem that exists in the industry and needs to be solved urgently. Some key equipment in aerospace, rail transit, building steel structure, wind power generation, nuclear power valves, power plants, chemical industry, boilers, water pumps and other industrial fields all have the demand for axial force detection of fasteners. The conventional detection method consists of The axial force sensor can be calculated indirectly through the torque, and there is no method to detect the axial force in real time during the installation and operation of fasteners. [0003] The ring gro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B19/08G01L1/24
CPCF16B19/08G01L1/242
Inventor 左世斌贾云龙赵祥云张钦董帅何旭王旺兵王仕柏邓涛
Owner MEISHAN CRRC FASTENING SYST CO LTD
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