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Special tool for detaching anti-loose lock sheet

A special tool and locking plate technology, applied in the direction of manufacturing tools, hand-held tools, etc., can solve the problem of indentation on the workpiece, and achieve the effect of reducing friction, reducing operation difficulty, and smooth and labor-saving rotation process.

Pending Publication Date: 2019-02-19
HARBIN ELECTRIC POWER EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the prying process, it is easy to leave indentations on the workpiece due to the need to use the workpiece as a force point

Method used

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  • Special tool for detaching anti-loose lock sheet
  • Special tool for detaching anti-loose lock sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Such as figure 1 As shown, a special tool for removing the anti-loosening lock piece, the hook 7 is hinged with the T-shaped connector 13 through the pin 8, and the tension spring 6 is installed in the round hole opened at the upper end of the two hooks 7; the T-shaped connector 13 is fixedly connected with the lifting screw 5 through the connecting screw 11; the lifting screw 5 is threadedly connected with the end nut 1; the wrench 2 is installed in the two round holes opened on the end nut 1, and the O-ring 10 is installed in the groove at one end of the wrench 2 Backing plate 9 is pasted and fixed on the lower end of sleeve 4; Nut 12 is threadedly connected with connecting screw 11, as figure 2 shown.

[0013] Such as figure 2 Shown, the waist-shaped hole that its side wall of sleeve 4 offers installs connecting screw 11.

[0014] The assembly that extension spring 6, hook claw 7, pin 8 and T-shaped connector 13 forms can be replaced in a complete set. During ...

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Abstract

The invention relates to a special tool for detaching an anti-loose lock sheet. Claws (7) are hinged to a T-shaped connecting piece (13) through pins (8). A tension spring (6) is arranged in circularholes formed in the upper ends of the two claws (7). The T-shaped connecting piece (13) is fixedly connected with an elevating threaded rod (5) through a connecting screw (11). The elevating threadedrod (5) and an end nut (1) are in threaded connection. A wrench (2) is arranged in two circular holes formed in the end nut (1). An O-shaped ring (10) is arranged in a groove in one end of the wrench(2). The special tool is simple and reliable, and the experience requirement for operators is greatly lowered; during work, symmetric force application is conducted, counter bore installing groove damage can be effectively prevented during lock sheet detachment, and the workpiece surface is not damaged. Applicability is wide, and the special tool can be applied to multiple specifications of anti-loose lock sheets. The structure is simple, production and maintenance are easy, and the economical efficiency is high.

Description

technical field [0001] The invention is a special tool for dismounting the anti-loosening lock piece. Background technique [0002] The reactor coolant pump is the only rotating equipment in the primary circuit of the pressurized water reactor nuclear power plant. It is the heart of the nuclear power plant and is used to deliver the reactor coolant at a specified flow rate. The hydraulic components in the nuclear main pump are limited by the space size and structure, and when assembled with each other, they are mostly connected by counterbore holes and hexagon socket head bolts. The hexagon socket head bolts installed in the counterbore are secured against loosening with a special anti-loosening lock plate. [0003] For this kind of anti-loosening lock, the current disassembly method is to use a flat-blade screwdriver to insert the bottom of the anti-loosening lock embedded in the hexagon socket head bolt, and through a specific angle, use the edge of the counterbore of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B27/02
CPCB25B27/023
Inventor 赵鹏江福刘月马丹
Owner HARBIN ELECTRIC POWER EQUIP
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