Tool for detaching piston and piston detaching method

A piston and tooling technology, applied in the field of engine piston disassembly tools, can solve the problems of insufficient protection, hidden safety hazards for disassemblers, easy to damage pistons, etc., so as to reduce the labor intensity and danger, and improve the effect of repeated utilization.

Inactive Publication Date: 2018-06-19
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the method of dismounting the piston is to smash it out of the cylinder liner from the bottom of the piston after disassembling the c

Method used

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  • Tool for detaching piston and piston detaching method
  • Tool for detaching piston and piston detaching method

Examples

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Example Embodiment

[0026] The embodiments of the present invention will be described in further detail below in conjunction with the drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0027] In the description of the present invention, unless otherwise specified, "plurality" means two or more. The terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship: Based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood To limit the present invention.

[0028] Such as figure 1 with figure 2 As...

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Abstract

The invention relates to the technical field of detaching tools of engine pistons, in particular to a tool for detaching a piston and a piston detaching method. A transmission shaft of the tool is connected into the axis of a planetary gear train, a plurality of clamping claws are installed in the circumferential direction of the planetary gear train, the extending directions of all clamping clawsare the same, the transmission shaft is used for driving the planetary gear train to rotate so as to drive all clamping claws to rotate around different rotating shafts, all clamping claws are foldedor unfolded synchronously, and when all clamping claws are unfolded synchronously until the stroke scope is a maximum value, the clamping claws can be tightly clamped to the inner walls of sinking pits in the top of the piston simultaneously. The method is achieved through the tool. By means of the tool and method, the piston can be tightly expanded from the interior of the top, quick pulling ofthe piston can be achieved, the manual labor strength and risks can be effectively reduced, a piston body cannot be damaged when the piston is detached, and the repeated using rate of the piston is improved.

Description

technical field [0001] The invention relates to the technical field of dismantling tools for engine pistons, in particular to a tool for dismantling a piston and a piston dismantling method. Background technique [0002] The piston is a reciprocating part in the cylinder block of an automobile engine. The basic structure of the piston can be divided into top, head and skirt. The top of the piston is the main part of the combustion chamber, and its shape is related to the selected form of the combustion chamber. Gasoline engines mostly use flat-top pistons, which have the advantage of small heat absorption area; while diesel engine pistons often have various pits on the top, and their specific shapes, positions and sizes must be compatible with the requirements of diesel engine mixture formation and combustion . [0003] In the process of maintenance or assembly of diesel engines, when the piston needs to be disassembled, there is no special tool for disassembling the pist...

Claims

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Application Information

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IPC IPC(8): B25B27/02
CPCB25B27/02
Inventor 范振勇张冬生贾秀民黄萌萌
Owner WEICHAI POWER CO LTD
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