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Disassembly tool and method of compression spring in cylinder block

A technology of compressing springs and disassembly tools, which is applied in the direction of fluid pressure actuators, servo motor components, mechanical equipment, etc., can solve problems such as difficult repairs, difficult disassembly and installation, time-consuming and laborious disassembly methods, and achieve the goal of improving practicability Effect

Pending Publication Date: 2019-05-24
XI'AN PETROLEUM UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the contact surface between the cylinder body and the valve plate is so worn that it is difficult to repair, it is necessary to replace the cylinder body, take out the compression spring, and put it into a new cylinder body
However, there are no special tools in actual use. In operation, it is necessary to make corresponding tools on site according to the size of the cylinder, and use pressure equipment such as a press to compress the compression spring to take out the circlip located above the compression spring. This disassembly method Time-consuming and labor-intensive, and difficult to disassemble and install

Method used

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  • Disassembly tool and method of compression spring in cylinder block
  • Disassembly tool and method of compression spring in cylinder block

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0023] see figure 1 and figure 2 , a disassembly and assembly tool for the compression spring inside the cylinder body, including a pressure plate 1, a piston rod 2, a cylinder head 3, a cylinder barrel 4, an oil drain bolt 5, a base 6, a hydraulic spring 7, a pressing mechanism 8, a cylinder body 9, a compression Spring 10, circlip 11;

[0024] The cylinder head 3 and the cylinder barrel 4 are threadedly connected, the center of the cylinder head 3 has a through hole, the piston rod 2 can move axially along the through hole, the hydraulic spring 7 is located in the cylinder barrel 4, and the pressing mechanism 8 is hinged to the base 6 . The pressing plate 1 and the piston rod 2 are threadedly connected and can move up and down with the piston rod 2 axially, and the pressing plate 1 presses the spring compression 10 in the cylinder 9 downward through the downward ...

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Abstract

The invention discloses a disassembly tool and method of a compression spring in a cylinder block. A hydraulic spring and a piton rod are positioned in a cylinder barrel; the hydraulic spring is positioned under the piston rod; a pressing plate is in threaded connection with the piston rod; and the piston rod can move in the axial direction of the cylinder barrel. When a pressing mechanism is operated to enable the piston rod to move down, the pressing plate moves down with the piston rod to compress the hydraulic spring and to compress the compression spring in the cylinder block, so that a snap spring can be taken out. When an oil release bolt is loosened, under the effect of the hydraulic spring in the cylinder barrel, oil in a rod cavity of the hydraulic cylinder is discharged, and thepiston rod is recovered to an original position; the pressing plate is taken down; and the compression spring is taken out to finish disassembly of the compression spring in the cylinder block. The disassembly tool uses hydraulic force for disassembly, so that the manpower can be saved, the operation is convenient, the working intensity can be greatly reduced, the working efficiency is improved,and the production efficiency is further improved.

Description

technical field [0001] The invention relates to the technical field of hydraulic pump disassembly and assembly, in particular to a disassembly tool and method for a compression spring inside a cylinder body. Background technique [0002] In the current technical field of disassembly and assembly of hydraulic pumps, it is very difficult to disassemble and assemble the compression spring inside the cylinder of the plunger pump. There are three evenly distributed grooves on the splines of the cylinder body, which are used to place three thimbles. The compression spring in the cylinder body is to withstand the three thimbles, press the sliding shoe to the swash plate, and make the piston return. Make the pump have good self-priming ability, and at the same time make the cylinder body and the valve plate close to each other, so as to ensure that there is basically no leakage when the pump is started. Therefore, the compression spring plays a very important role in the cylinder b...

Claims

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Application Information

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IPC IPC(8): F15B15/20F15B15/22F15B15/14F15B13/04
Inventor 王金刚王奇何飞
Owner XI'AN PETROLEUM UNIVERSITY
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