Method for automatically selecting type of variable-force spring and determining type information

A variable force spring and model technology, applied in flexible shafts, special data processing applications, instruments, etc., can solve the problems of confusing changes in spring compression length, no selection report, and large workload, avoiding repetitive calculations. , the effect of saving computer memory and reducing workload

Active Publication Date: 2013-12-04
CHINA NUCLEAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] According to this process, interpolation calculations and trial calculations are used many times, not only the workload is heavy, time-consuming and labor-intensive, but also due to the differences in the abilities of different people and sloppy factors during the calculation process, especially many people have no correspondence with the positive and negative values ​​of the displacement. The change of the compressed length of the spring is easy to confuse, and it is easy to lead to wrong selection, which brings safety hazards, and there is generally no selection report in this process, which is not convenient for follow-up tracking

Method used

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  • Method for automatically selecting type of variable-force spring and determining type information
  • Method for automatically selecting type of variable-force spring and determining type information
  • Method for automatically selecting type of variable-force spring and determining type information

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Embodiment

[0073] First define the performance parameters of the spring through the array SV[i, j]. In this embodiment, i and j are all defined serial numbers used to represent the performance parameters of the spring, including spring models and spring series; wherein, i≥1, 1≤j≤28, the specific definition is as follows:

[0074] When 1≤j≤3, the two-dimensional array SV[i,j] of i=1 represents the spring serial number, and the two-dimensional array SV[i,j] of i=2 represents the minimum stroke of the spring under the corresponding serial number; i The two-dimensional array SV[i, j] of =3 represents the maximum stroke of the spring under the corresponding serial number;

[0075] When 4≤j≤28, the two-dimensional array SV[i,j] of i=1 represents the specific spring model, and the specific spring model is j-3; the two-dimensional array SV[i,j] of i=2 represents The minimum spring load of the spring under the corresponding model; the two-dimensional array SV[i, j] of i=3 represents the maximum ...

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Abstract

The invention discloses a method for automatically selecting the type of a variable-force spring and determining type information. The method comprises the following steps of: defining relevant performance parameters of all series of springs by an array; before type selection, pre-judging allowed maximum stiffness; calculating a working load, and then determining the range of spring series according to the working load; and finally determining the spring series according to the parameters such as the allowed maximum stiffness. By the method provided by the invention, a user can quickly determine other parameter values after determining one parameter value of the spring in the array. Because data is searched and calculated in the array in the method, internal memory required by a computer is greatly saved, a large amount of repeated operation is not required, and type selection efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the field of calculation process and method of variable force spring selection, and specifically relates to a method for automatically selecting a variable force spring model and determining the model information according to known conditions. Background technique [0002] Variable force spring supports and hangers are mainly used in factory piping systems. For example, there are more than 750 variable force spring supports and hangers used in each M310 pressurized water reactor nuclear power plant. These variable force spring supports and hangers must be calculated one by one. Determine the model, and fill in each load and installation length of the spring, so that the manufacturer can lock the spring according to the installation length before leaving the factory. [0003] At present, the conventional methods of variable force spring selection are all manual calculations. The specific process is as follows: figure 1 Shown: ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00F16C1/00
Inventor 刘虎于凤云李晓霞于勇李海冰杨俊琦彭春华王付军齐增辉
Owner CHINA NUCLEAR POWER ENG CO LTD
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