Multifunctional friction wear testing device

Abstract

The invention discloses a multifunctional friction wear testing device. The device comprises a workbench, a variable loading assembly, an upper friction pair assembly, a reciprocating type lower friction pair assembly, a pin disc type lower friction pair assembly, a crank disc and a spindle motor; a loading rod is fixed in the middle of a cross beam of the workbench; a roller wheel is connected tothe bottom of the loading rod; the upper friction pair component abutting against the roller wheel is arranged below the roller wheel; the upper friction pair assembly is fixed on a side surface stand column and is provided with an upper clamp used for fixing an upper sample piece; and the reciprocating type lower friction pair assembly or the pin disc type lower friction pair assembly is detachably fixed on the workbench below the upper friction pair assembly and is provided with a lower clamp used for fixing a lower sample piece. The two lower friction pair assemblies can be driven by the spindle motor and the crank disc, so that the utilization rate of equipment components is improved, and the overall cost of equipment is reduced; and multiple different friction tests can be realized,a load can be periodically changed, and a roller wheel balancing device ensures that external loading force is radially downward and acts on the upper sample piece.

Description

technical field [0001] The invention belongs to the technical field of friction test devices, and in particular relates to a multifunctional friction and wear test device. Background technique [0002] Due to the needs of modern industry, mechanical products are developing towards large-scale, high-speed, high-load and high-level automation, and higher and higher requirements are put forward for equipment reliability, precision retention, life extension, energy saving and cost reduction. These requirements are closely related to friction, wear and lubrication. Studies have shown that all machinery and equipment work relying on the relative motion of the friction pairs between their parts, and there must be friction and wear if there is relative motion. The friction and wear caused by improper lubrication not only affects the work and life of human beings, but also causes serious waste. In order to study the phenomenon of friction and wear and its essence, correctly evaluat...

AI Technical Summary

Problems solved by technology

Different friction and wear testing machines have been manufactured on the market for these friction and wear forms, such as MHK-500 ring block friction and wear testing machine, WMJ-1500 reciprocating friction testing machine, etc., but in the actual test process, we will encounter more than one In order to meet the requirements of the test, we usually purchase multiple friction and wear testing machines with different motion forms, which results in a substantial increase in the cost of the experiment and a waste of equipment resources

Of course, the UMT series multifunctional friction and wear testing machine of the US CETR company can perform tribological tests of various friction pairs, but the price is expensive.

[0004] In addition, the friction and wear testing machines on the market have a very high degree of integration, so when designing the external load of the simulated working condition, it is often simply to use the rated force loading method

However, the actual working conditions are more complicated, and the combination of different speeds and different external loads has a very different impact on the friction and wear test.

In addition, the existing friction testing machine is also suitable for a variety of samples of different shapes and sizes, and it is inconvenient to adjust the axes and centers of the upper and lower samples.

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