A Research Method of Hydraulic Pump Tolerance
A hydraulic pump and scheme technology, applied in the field of hydraulic pump tolerance research, can solve the problem of no repair standard for tolerance
Active Publication Date: 2021-03-23
国营芜湖机械厂
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Problems solved by technology
[0003] Aiming at the problem that there is no repair standard for the tolerance of the out-of-tolerance parts of the hydraulic pump, this invention proposes a research method for the tolerance of the hydraulic pump, the purpose of which is to determine the repair tolerance and form repair technical standards to reduce repair costs and ensure repair cycle Purpose
Method used
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[0027] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with the accompanying drawings and embodiments.
[0028] A hydraulic pump tolerance research method, the specific steps are as follows:
[0029] (a) Make statistics on the out-of-tolerance situation of the used parts groups at the present stage, and obtain repair experience data.
[0030] Specifically, the specific process of statistics is as follows: sorting out repair record files, grouping statistics according to different life cycles of products, and obtaining product performance failures and component wear trends throughout the life cycle.
[0031] (b) Try to analyze the reasons for the out-of-tolerance of parts and components from a theoretical point of view, and demonstrate whether a specific out-of-tolerance data can meet the performance requirements of the oil pump....
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The invention relates to an allowance research method of a hydraulic pump. The allowance research method includes the following specific steps that statistics is conducted on the out-of-tolerance condition of a component which is used in the current state, and repairing experience data are obtained; the reason for generating the out-of-tolerance condition at all positions of the component is triedto be analyzed from the angle of theory, and whether certain out-of-tolerance data can meet the performance requirement of an oil pump or not is proofed; specific implementation is conducted according to an earlier stage, and test results are obtained; and argument and analysis are conducted on the test result, the repairing tolerance is determined, and repairing technical standards are formed. By means of the allowance research method of the hydraulic pump, statistics and analysis are conducted on the out-of-tolerance condition of the part, a theoretical model is established, and the tolerance indicator is determined; a test technical scheme is formulated with the combined with related specifications according to project indicators, and tests such as a durance test, a pressure pulsationtest and a starting-stalling circulation test are conducted on an out-of-tolerance test sample; and the research result is verified according to test results, the repairing tolerance is determined, and a repairing technical standard is formed. The purposes of reducing repairing cost and ensuring the repairing period are achieved.
Description
technical field [0001] The invention relates to a research method of repair tolerance, in particular to a research method of hydraulic pump tolerance. Background technique [0002] At present, the repair standard of a certain type of hydraulic plunger pump is established with reference to the product manufacturing standard. In actual repair, the size of the moving parts in the plunger pump often exceeds the manufacturing standard, but the repair experience shows that the out-of-tolerance components can often meet the product performance requirements in the next overhaul period. The current repair is based on the overhaul guide and manufacturing drawings, and the tolerances of parts in the overhaul guide are consistent with the manufacturing drawings, so at this stage, there is no repair standard that can be relied upon. Contents of the invention [0003] Aiming at the problem that there is no repair standard for the tolerance of the out-of-tolerance parts of the hydraulic...
Claims
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IPC IPC(8): F04B51/00G01M13/00
CPCF04B51/00G01M13/00
Inventor 江怡南张峰李永龙
Owner 国营芜湖机械厂