1)main purpose and scope of application
The machine mainly evaluates the bearing capacity of the lubricant under the condition of extremely high point contact pressure in the form of sliding friction. Including the maximum cardless bite load PB, sintering load PD, comprehensive wear value ZMZ and other indicators. The machine can also be used as a long-term anti-wear test for lubricants, to determine the coefficient of friction, and to record friction and temperature profiles.
2)Main Specifications
No |
Item name |
Technical index |
1 |
Test force range (infinitely adjustable) |
10N~10kN |
2 |
Test force relative error |
±1% |
3 |
Friction test range |
0~300N |
4 |
Friction test error |
±1% |
5 |
Spindle speed range (infinitely adjustable) |
100~2000r/min |
6 |
Spindle speed error |
±5 r/min |
7 |
Friction pair temperature control range |
Room temperature ~260○C |
8 |
Friction pair temperature control error |
±1○C |
9 |
Test time control range |
1 second~999hour |
10 |
Spindle speed control range |
1~99999999turn |
11 |
Test steel ball |
φ12.7mm |
12 |
Dimensions |
960*750*1600 (mm) |
13 |
weight |
600kg |
3)Working conditions
a) room temperature in the range of 10~35○C;
b) the relative humidity is not more than 80%;
c) no vibration around, no corrosive medium and no interference from strong electromagnetic fields;
d) The fluctuation range of the power supply voltage should not exceed ±10% of the rated voltage, the frequency fluctuation range should not exceed 2% of the rated frequency, and the unbalanced voltage of the three-phase voltage should not exceed 10V;
e) Install correctly on a stable basis with a level of no more than 0.2/1000.
4)basic configuration
4.1. Test machine main machine: It consists of base, spindle drive, piston force system and electric control cabinet.
4.2. Full digital electrical measurement amplification control system and liquid crystal display system: real-time display of test force, friction, speed, test revolutions, time, temperature.
4.3. Load sensor sensor
4.4. Based on WINDOWS computer data processing software
4.5. Computer: Lenovo brand computer
4.6. Printer: HP Color A4 Printer
4.7. High-precision measuring microscope: Shanghai Optical Instrument Factory 15J, magnification 25X
4.8. High temperature platinum resistance sensor 1
4.9. Test friction pair:
a) 1 set of high temperature friction auxiliary oil tank;
b) 1 set of normal temperature friction sub-tank;
c) 100 balls for four ball machines.
5)Measurement and control system and test software use function
(1) Execute the test methods such as GB/T12583-1998 (Lubricant Extreme Pressure Performance Test Method) and ZB E 34007-87 (Four Ball Method Anti-Abrasion Test Method);
(2) Friction and peak and load, the accuracy is ±1% of the starting value of 20% of each range, which can be automatically calibrated;
(3) Real-time display of motor revolutions (speed) and test duration;
(4) Multiple protection functions: friction, load, motor revolution, etc.;
(5) Real-time recording of friction-time and load-time test curves, high-speed sampling;
(6) The variable structure PID control algorithm is used to adjust the loading process, the constant velocity control error is ≤ 5%, and the pressure holding control error is ≤ 0.5%;
(7) When the test force is greater than a certain upper limit, the system will automatically enter the overload protection and take certain measures in time to ensure the safety of the test machine;
(8) The test data is managed by data file, which can save all test data and curves, and print the test report format to meet the national standard requirements.
6)random accessories
category |
No |
Product name |
Quantity |
Remark |
Product |
1 |
Host |
1 set |
|
2 |
Computer (liquid crystal display) |
1 set |
Lenovo |
|
3 |
printer |
1 set |
HP |
|
4 |
15J wear spot measuring microscope |
1 set |
|
|
accessory |
1 |
High temperature wear secondary fuel tank |
1 set |
|
2 |
Normal temperature friction auxiliary oil tank |
1 set |
|
|
3 |
Four ball special steel ball |
100pcs |
|
|
4 |
Oil retaining ring (high/low temperature) |
1 each |
|
|
5 |
Collet chuck |
1pc |
|
|
6 |
Torque wheel |
1 |
|
|
tools |
1 |
Lifting screw |
4 pieces |
|
2 |
Shockproof horn |
4 pieces |
|
|
3 |
Medical forceps |
1 pc |
|
|
4 |
Medium waist plate |
1 |
|
|
5 |
Oil box wrench |
1 each |
|
|
6 |
tool |
1 set |
|
|
7 |
Spring collet loading and unloading wrench |
1 pc |
|
|
8 |
Chuck hammer |
1 pc |
|
|
Technical document |
1 |
Instruction Manual |
1 copy |
|
2 |
Software instruction manual |
1 copy |
|
|
3 |
Thermostat instruction manual |
1 copy |
|
|
4 |
Warranty card |
1 copy |
|
|
5 |
Packing List |
1 copy |
|