First, product introduction:

The MPJ-1G rolling contact fatigue wear tester is an old model of the old MJP rolling contact fatigue wear tester. The test machine uses the upper and lower specimens rolling or rolling and sliding friction pair movement form, testing the contact fatigue wear properties of the material under the condition of oil lubrication or dry friction, which conforms to the GB10622-89 phase. The test requirements are closed.

The contact fatigue tester can study the material performance and technological properties of gear, bearing, roll, rail and other parts with contact fatigue wear. The test machine adopts automatic / manual loading and stepless speed regulation. The test parameters such as load, speed, temperature, friction torque, friction coefficient and other test parameters are collected and processed in real time through computer and test data processing. The test results are given (or printed out) in the form of data and table. In practical use, the parameters such as load, speed, friction moment, time, temperature, and the material, roughness and hardness of the spouses of the friction pair can be adjusted in a wide range, and the changes of the fatigue and wear properties of the specimens under the influence of various factors are investigated and the sample table under different test parameters is used. The wear condition of the surface is used to evaluate the contact fatigue wear characteristics and the comprehensive service performance of the material.

Two. The main technical specifications:

1. Specimen load range: 800N - 10000/20000/30000N (optional test force)

2. The relative error of the load shows: + 1%

3. The long time load keeping error: + 1%

4. Spindle motor power: 5KW (optional dual motor regulation roller skating ratio)

5. Speed: 1~2000 turn / score

6. The precision of speed control: 0. 5

7. Torque measurement range: 0~25N.M

8, the relative error of torque display: + 1%

9, power supply: three phase 380V 20A

10. Temperature measurement range: ~650 C at room temperature (indication error + 1).

11. The diameter of the upper and lower samples is: 50~, 70mm, two, and the center of the sample is 60mm.

12. Measurement parameters: load, friction torque, temperature, speed and friction coefficient.

13. Draw charts and curves: load time, friction torque time, temperature time, speed time, friction coefficient time.

14. The measurement time range is 0~999 hours

15, the outline size (length, width, height): about 1460*1200*1150 mm

Three. A brief introduction to the structure principle

3.1. Loading mode

The MJP contact fatigue test machine adopts the servo control automatic lever loading structure, which has low noise and smooth loading. It can effectively overcome the problems of high load fluctuation, noise and oil pollution.

3.2 test mode

The test machine adopts the test plan for rolling contact (i.e. a pair of disc rollers). It has the characteristics of simple structure, few other factors and high contact accuracy. Two disc specimens are arranged in the vertical direction, respectively installed on the left swing box and the external spindle of the right fixed box, which is convenient for the installation and unloading of the test parts. The lever can be adjusted by loading the lever, and the lever position can be finely adjusted. The lever ratio is 1:10.

3.3 power system

The driving motor of the contact fatigue wear tester is 5KW servo motor, which has the advantages of high speed precision and constant torque output. Through the gear transmission, the rolling (sliding) motion of the two disc specimens is completed. The hanging wheel with different number of teeth can be installed on the fixed box on the right to realize the test of six different slip rates. The left and right boxes are connected by the nylon column pin coupling, and the work is good, and the circuit insulation of the left swing box is ensured. Two the main shaft of the box is equipped with three D high precision bearings to ensure that the spindle has enough rigidity and slewing accuracy.

3.4 measurement and control system

The measurement system can collect real time torque, test force, temperature and other test parameters, and output reports and curves, and use the HTMS advanced version of the special test and control software for friction and wear.

Four. Confidentiality of technical information and information

1. This technical scheme belongs to the technical information of our company. The user shall bear the obligation to confidentiality of the technical information and information provided by us. No matter whether this scheme is adopted or not, the terms are valid for a long time.

2, we should also undertake confidentiality obligations for the technical information and information provided by users.

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The contact：Janna Tang

Email:cnjntest@163.com