Microcomputer control spring migration pressure testing machine is developed for locomotive enterprise spring load testing machine, in addition to the regular spring test function, can more strictly in accordance with European standard EN13298 spiral steel suspension spring in locomotive vehicle suspension system for the axial stiffness, the lateral displacement, transverse force, lateral stiffness, migration direction, deviation Angle of test and calculation, output the coordinates of different curve.
Function
1. Conventional spring test function
1.1 it has various control modes such as force, displacement and deformation
◆ set the test force to test the deformation of the spring
◆ set the deformation amount and test the test force of the spring.
◆ set the test force to test the remaining height of the spring;
◆ set the remaining height of the spring, test force of the spring, general function.
1.2 general functions
A) according to different spring design requirements, enter known parameters, and the experiment can be done automatically. After the experiment is completed, the initial position of the test can be returned automatically. If batch testing is carried out, it will show more powerful advantages. Users only need to input test parameters once to realize all the automatic operations except the replacement of spring during the experiment, which has a very high test efficiency.
B) it can complete the functions of parameter calibration, zero point removal, parameter storage and loading of the sensor; The controller has the functions of over-limit of test parameters, over-set automatic shutdown or alarm lamp protection.
C) operating system WindowsXP, Win7 platform, full Chinese operation interface, human-machine interface friendly, all the operation of the testing machine through the computer keyboard and mouse, the computer screen shows the test force, displacement, beam moving speed, the working state of the testing machine, and with shortcut keys. Real-time data collection, data operation and processing, and provide data storage, query, printing and other functions, can real-time display, draw the test fort-deformation curve, curve can be enlarged or shrunk, local curve amplification, and users can be in the amplification area by dragging the mouse to achieve the translation of the enlarged curve.
2. Testing function of transverse stiffness and transverse free bending deformation
The specified axial static force is applied on the spring to measure the deformation and direction of the spring on the X and Y axes, and calculate the bending direction, deviation and Angle of the measuring platform.
By applying a specified axial static force to the spring, the force that the platform can return to its original central position, as well as the bending force, is measured.
The axial static force of the same size is applied on the spring, and the transverse force is constantly applied on the spring. The transverse force under the specified transverse displacement is measured, the transverse stiffness of the spring is calculated and the transverse stiffness -- deformation curve of the spring is drawn.
Main technical parameters
| NO. | Project name | Parameters and indexes | |||
| 1 | Maximum loading capacity (KN) | Axial 200 | Crosswise 40 | ||
| 2 | measurement range of load (KN) | 4-200 | 1-40 | ||
| 3 | Minimum resolution of load（N） | 2 | 2 | ||
| 4 | Minimum resolution of displacement(mm) | 0.01 | |||
| 5 | Test space when compression | ≥500 | |||
| 6 | relative error of load indication | ≤±0.5% | |||
| 7 | relative error of zero | ≤±1.0% | |||
| 8 | Effective test space(mm) | Axial 100 | X ±60 | Y ±60 | |
| 9 | Axial parallelism error | ≤0.2 | |||
| 10 | Axial offset error | ≤1.0 | |||
| 11 | Axial loading speed | 0.05mm/min~500mm/min | |||
| 12 | Lateral loading speed | 0.05mm/min~500mm/min | |||
| 13 | Axial pressure plate diameter (mm) | 500 | |||
| 14 | Safety device | Meet technical agreement | |||
| 15 | Standard | GB/ t2611-92 | |||
| 16 | Motor power | ||||
| 17 | Supply voltage | ||||
| 18 | Shape size | ||||
| 19 | Package size | ||||
| 20 | Net weight (Kg) | ||||
| 21 | Gross weight (Kg) | ||||
