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Method for manufacturing connecting rod type plunger

A manufacturing method and connecting rod-type technology, applied in the field of aviation machinery, can solve the problems of difficulty in refinishing components, and achieve the effects of ensuring normal oil supply, good closing quality and large pull-off force.

Active Publication Date: 2013-12-04
CHANGCHUN AVIATION HYDRAULIC CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two parts (piston and socket) at both ends of the connecting rod plunger are closed, and the rotation and swing of the parts will cause great difficulty in the re-finishing of the components after closing; secondly, an inverted cone appears at the outer circular end of the part after closing , when grinding the outer circle of the piston, the inverted cone can be ground off, but there remains a groove about 0.2 deep and 0.5 wide

Method used

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  • Method for manufacturing connecting rod type plunger
  • Method for manufacturing connecting rod type plunger
  • Method for manufacturing connecting rod type plunger

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing the present invention is described in further detail, please refer to Figure 1 to Figure 9 .

[0027] Such as figure 1 and figure 2 As shown, a method for manufacturing a connecting rod plunger, the connecting rod plunger includes a piston 1, a socket 2 and a piston rod 3, and a tapered opening bush 4, a base assembly 5 and a pressure head 6 are used to close the mouth, including The following steps:

[0028] Such as image 3 and Figure 4 As shown, Step 1: Make a protrusion at the corresponding position between the outer surface of piston 1 and socket 2 and the center of the inner spherical surface;

[0029] Such as Figure 5 As shown, if the outer diameter of the piston is smaller than the outer diameter of the socket, close the piston first. Step 2: Close the end of the piston 1: put the piston rod 3 into the inner spherical surface of the piston 1, so that the inner spherical surface of the piston 1 is in the mi...

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Abstract

The invention belongs to the field of aviation machinery, and relates to a method for manufacturing a connecting rod type plunger. The method includes the steps of respectively manufacturing a projection on the outer surfaces of a piston (1) and a socket (2); closing up the piston (1) and the socket (2) by respectively using a tapered opening bush (4), a base component (5) and a pressure head (6); respectively rolling the outer surfaces of the piston (1) and the socket (2) so that the plunger can flexibly swing; and finishing the outer surfaces of the piston (1) and the socket (2). The method is fine in closing quality and maximum in breakaway force, and meets the requirements of the piston on dimensional precision, technical conditions and surface roughness, a piston rod can flexibly swing in the piston and the socket without blocking, and normal oil supply of a plunger pump is further ensured.

Description

technical field [0001] The invention belongs to the field of aviation machinery and relates to a manufacturing method of a connecting rod type plunger. Background technique [0002] Usually, the parts are closed after the inner and outer surfaces of the parts are processed, and then the closed components are generally no longer machined. The connecting rod plunger is just the opposite. First of all, the inner spherical surface of the piston is located in the middle of the part, which is relatively deep from the orifice, and the orifice is thin-walled (about 1mm). When an external force is applied to close the opening, the end surface of the piston will be piled up, and the orifice will be seriously deformed; secondly, the two ends of the part Both parts (piston and socket) are closed, but the dimensions of the outer circles of the piston and socket are not consistent, so the piston and socket are closed in a certain sequence. The two parts (piston and socket) at both ends ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/00
Inventor 冯东玲孙振贵张文春廖际云张茂香
Owner CHANGCHUN AVIATION HYDRAULIC CONTROL
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