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A spring pin for electric power fittings that is convenient for robot maintenance work

A technology of electric fittings and spring pins, which is applied to springs, springs/shock absorbers, coil springs, etc., can solve problems such as high installation risk, inconvenient operation, and complex structure, so as to improve the reliability of pin connection, improve reliability, Reduce the effect of relative motion

Active Publication Date: 2022-08-05
LUDONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The installation, disassembly and maintenance of existing bolts with pinholes, nuts and closed pins used for electrical fittings require professionals to use special operating tools, which is inconvenient to operate and high in installation risks; in addition, when designing the maintenance robot, it is necessary to design the structure Complex dedicated manipulator, needs improvement

Method used

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  • A spring pin for electric power fittings that is convenient for robot maintenance work
  • A spring pin for electric power fittings that is convenient for robot maintenance work
  • A spring pin for electric power fittings that is convenient for robot maintenance work

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Embodiment Construction

[0071] The technical solutions of the present invention are described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0072] figure 1 It is a schematic diagram of the overall structure of the spring pin, the nut 2 and the bolt 3 . The bolt 3 includes a cylindrical screw and a head, with an external thread on the screw, and a radial pin hole 31 at the end of the screw away from the head; it is the existing loose connection for power fittings. bolts with pin holes. The present invention does not change the existing bolt structure with pin holes for loose connection of power fittings, so that the nut 2 with the spring pin of the present invention can be used for the replacement of missing nuts and closing pins of power fittings, which is convenient for eliminating defects and maintenance work.

[0073] The nut 2 has an axial through hole, and the inner surface of the through hole has an inner thread, and the inner thread cooperates wit...

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Abstract

The invention relates to a spring pin for electric power fittings which is convenient for robot maintenance work, belongs to the technical field of electric power fittings, and is an integral structure comprising a pin segment, a spring segment and a connecting segment. The pin section is pinned with the bolt, and the connecting section is fixedly connected with the nut, so that the nut can be prevented from retreating and limited along the circumferential direction relative to the bolt, ensuring reliable withdrawal and limiting. The spring segment has a cylindrical helical structure, and the screw rod surrounding the bolt is opposite to the external thread of the bolt and has elasticity, so that the nut can automatically adapt to the installation position of the bolt. There is a gap between the spring segment and the screw rod of the bolt to avoid wear. During installation, the pin section abuts the external thread of the bolt, and rotates through the nut to automatically enter the pin hole of the bolt, which facilitates robot maintenance operations and improves the safety and reliability of assembly, disassembly and maintenance operations. It is easy and convenient to effectively avoid falling objects and operating errors.

Description

technical field [0001] The invention relates to a spring pin, in particular to a spring pin used for electric power fittings, and belongs to the technical field of electric power fittings. Background technique [0002] Bolts and nuts are widely used as fasteners for fittings installed in overhead power lines and substations to realize the detachable connection of fittings, which is convenient for disassembly and maintenance. When the bolt is subjected to a transverse shear load, the nut does not have an axial tightening preload, which is called a loose connection. When loose connection, in order to prevent the nut from falling off, the closed pin is widely used to stop the retreat and play a limiting role. In the electric power industry standard DL / T 1343-2014 "Closed Pins for Electric Power Fittings", it is clearly stipulated that the closed pin is made of austenitic stainless steel strip, bent to form, with a round head and a long pin rod. And two feet, one pin has a pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16B39/26F16B19/02F16F1/12B65G47/22
CPCF16B39/26F16B19/02F16F1/123F16F1/046B65G47/22
Inventor 苏子林赵万胜王程骏
Owner LUDONG UNIVERSITY
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