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Method for selecting electric control handles and designing parameters

A technology of parameter design and control handle, which is applied in the direction of pump control, mechanical equipment, liquid variable capacity machinery, etc., can solve the problems of unstable pump displacement change and reduced stability, so as to ensure adaptability, overcome errors, The effect of improving design efficiency

Inactive Publication Date: 2012-06-20
无锡市钻通工程机械有限公司
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Problems solved by technology

However, in many cases, the handle model is only selected according to the matching of the voltage and the maximum current, without dynamic analysis of the electrical parameters of the handle and the oil pump, that is, there is no change in the handle output current with the position of the potentiometer (handle part) Conduct in-depth analysis, which leads to unsteady changes in pump displacement and reduces the smoothness of corresponding actions in the entire hydraulic system

Method used

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  • Method for selecting electric control handles and designing parameters
  • Method for selecting electric control handles and designing parameters
  • Method for selecting electric control handles and designing parameters

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Embodiment Construction

[0077] The present invention will be further described below in conjunction with figure and embodiment.

[0078] The design scheme of the present invention is: according to the circuit principle of the corresponding handle, the current change curve of the electric control handle is obtained, analyzed and compared; the parameters of the electric control handle are adjusted to achieve an optimal design.

[0079] The technical solution adopted by the present invention to solve the above-mentioned technical problems includes the following steps performed by a computer, and its flow process is as follows: figure 1 shown.

[0080] 1. Determine the circuit principle of the electric control handle and the calculation formula of the corresponding parameters of each branch

[0081] The present invention is designed for the handle of the following two circuit principles:

[0082] 1) For the single potentiometer control handle, see the circuit diagram figure 2 , the basic formula of t...

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Abstract

The invention relates to a method for selecting control handles for a variable pump and designing parameters, which is suitable for two different control handles. The method comprises the following steps of: firstly setting a variable factor and a variation unit according to the handle type, building a coordinate system, and outputting current variation curves of all branches; selecting a fine tuning amount, determining a fine tuning amplitude, and outputting current variation curves in real time; and comparing a series of the current variation curves, and selecting a circuit parameter value which is corresponding to the curve with stable current variation. The method disclosed by the invention has the advantages of avoiding blind selection of handles in comparison with the present handle selection method, ensuring the adaptability of the handles and the selected variable pump, capably solving technical problems through computer tools conveniently after carrying out classification processing on all related amounts, conquering the errors brought by tedious manual computations, and improving the design efficiency.

Description

technical field [0001] The invention relates to a method for selecting and parameter designing an electric control handle, which is used for the electric control handle of a variable displacement pump. Background technique [0002] Many construction machinery use electric control variable pumps, and the matching of the electric control handle is directly related to the stability of the pump output displacement. However, in many cases, the handle model is only selected according to the matching of the voltage and the maximum current, without dynamic analysis of the electrical parameters of the handle and the oil pump, that is, there is no change in the handle output current with the position of the potentiometer (handle part) An in-depth analysis is carried out, which leads to the unsteady change of the pump displacement, which reduces the smoothness of the corresponding action in the entire hydraulic system. Contents of the invention [0003] The purpose of the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B49/06
Inventor 杨朋朋吴晓芳
Owner 无锡市钻通工程机械有限公司
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