Method for detecting protruding height of shoulder of engine cylinder sleeve
An engine cylinder, protruding height technology, applied in the direction of mechanical thickness measurement, mechanical measuring device, mechanical diameter measurement, etc., can solve the problem of not truly reflecting the protruding height of the cylinder liner shoulder, missing and so on
Inactive Publication Date: 2020-09-04
GUANGXI YUCHAI MASCH CO LTD
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Problems solved by technology
Since the test data is measured in a free state (i.e. without installing the cylinder gasket and cylinder head, only by pressing it by hand), the data cannot truly reflect the protruding height of the shoulder of the cylinder liner, resulting in seemingly normal data. As a qualified false appearance, thus missing this important parameter to continue to doubt and investigate
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[0020] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.
[0021] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.
[0022] Such as Figure 1 to Figure 2 As shown, according to a kind of engine cylinder liner shoulder protruding height detection method of preferred embodiment of the present invention, comprises the following steps:
[0023] Test preparation: set a plurality of lead bullet holes 31 along the cylinder mouth at the cylinder mouth of the cylinder head gasket 3, and perform deburring treatment. Wherein the shape of the lead ...
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The invention discloses a method for detecting the protruding height of a shoulder of an engine cylinder sleeve, and the method comprises the steps: forming a plurality of lead bomb holes in a cylinder opening of a cylinder gasket along the cylinder opening, and enabling the forming positions of the lead bomb holes to just cross a gap between the outer edge of the shoulder of the cylinder sleeve and the inner edge of the cylinder hole of a cylinder body; placing the air cylinder gasket with the lead bullet hole on the air cylinder body; putting a section of lead wire into each lead bullet hole; mounting a cylinder cover, screwing bolts according to a specified sequence, and keeping the status for a period of time; loosening the bolts according to the same sequence as the screwing process,and dismounting the cylinder cover; respectively measuring the outer diameter of each lead wire at the cylinder sleeve part and the cylinder body part by using a measuring tool, and recording and making a table; and calculating the shoulder protruding height by analyzing the height difference of all the lead wires located on the air cylinder sleeve part and the air cylinder body part, and determining whether the shoulder protruding height is qualified or not. The detection method provided by the invention can accurately judge whether the cylinder sleeve generates plastic deformation or not, so that targeted improvement is carried out.
Description
technical field [0001] The invention relates to the field of mechanical manufacturing detection, in particular to a detection method for the protrusion height of the shoulder of an engine cylinder liner. Background technique [0002] When the internal and external feedback engine has flushing of the cylinder head gasket and water return failure, it is necessary to analyze and troubleshoot the cause. The current common practice is to remove the cylinder head and use a dial indicator to test the height of the shoulder of the cylinder liner to determine whether the detection parameters are satisfied. Design requirements. Since the test data is measured in a free state (i.e. without installing the cylinder gasket and cylinder head, only by pressing it by hand), the data cannot truly reflect the protruding height of the shoulder of the cylinder liner, resulting in seemingly normal data. As a qualified false appearance, thus missing to continue to doubt and investigate this impor...
Claims
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IPC IPC(8): G01B5/06G01B5/08
CPCG01B5/003G01B5/061G01B5/08
Inventor 韦明全梁靖谐
Owner GUANGXI YUCHAI MASCH CO LTD