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Dry sand wear testing machine and use method thereof

A wear test, dry sand technology, applied in the direction of testing wear resistance, measuring devices, instruments, etc., can solve the problems of inability to simulate complex scenes, complex equipment structure, single simulation scene, etc., achieve simple structure, simple operation steps, The effect of many control parameters

Pending Publication Date: 2022-03-01
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It uses mortar as the wear material to simulate the wear of wear-resistant materials in contact with mortar in long-distance transportation scenarios, so as to screen out wear-resistant materials. However, the structure of the equipment is complex, the application scene is single, and there are few variable conditions. Cannot simulate more complex scenarios
[0004] In general, there are various types of friction and wear testing machines on the market, but most of these devices are bulky, have harsh test conditions, and a single simulation scene

Method used

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  • Dry sand wear testing machine and use method thereof
  • Dry sand wear testing machine and use method thereof
  • Dry sand wear testing machine and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, the dry sand wear testing machine of the present invention includes a sand storage tank 1, a speed controller 2, a sand guide nozzle 3, a servo motor 4, a planetary reducer 5, a rubber wheel 6, a sample holder 7, a control display 11 and a power supply , wherein the bottom of the sand storage tank 1 is connected with the sand guide nozzle 3, the sand guide nozzle 3 is used to guide the dry sand to flow out from the sand storage tank 1; the speed controller 2 is installed on the sand guide nozzle 3, and is used to adjust the dry sand in the sand guide nozzle 3 Flow rate; the rubber wheel 6 and the sample holder 7 are on the same horizontal plane, and are respectively placed on both sides below the sand guide nozzle 3, wherein the sand guide nozzle 3 is at a tangent position to the rubber wheel 6 and the sample holder 7; the rubber wheel 6 and the planetary The reducer 5 and the servo motor 4 are connected in turn, and the planetary reducer 5 an...

Embodiment 2

[0033] The using method of dry sand abrasion testing machine of the present invention comprises the steps:

[0034] (1) The rubber wheel connected to the speed controller reducer can adjust the speed and adjust the load applied by the cylinder to the sample; adjust the sand flow rate, the speed of the rubber wheel and the size of the applied load to simulate the friction under different working conditions , and the resistance heater can be freely loaded and unloaded to heat the sample, simulating the friction and wear at different temperatures;

[0035] (2) The selected quartz sand flows downward from the sand storage tank, and flows out from the sand guide nozzle after the speed is regulated by the speed controller, and the friction experiment is carried out on the sample between the rotating rubber wheel and the clamp that applies the load pressure;

[0036] (3) Finally, the sand flows into the sand collection tank after a series of friction processes, and the collected quar...

Embodiment 3

[0038] The sample is a coating brazed at 1060°C, and its hardness is much greater than that of other basic base materials such as carbon steel and stainless steel. Follow the steps below to simulate the wear of the sample:

[0039] (1) The cylinder load is set to 0.1MPA, the speed of the rubber wheel is 144 rpm, and the running time of the testing machine is 5 hours;

[0040] (2) Fix the above sample on the fixture, and fill the sand storage tank with quartz sand, the quartz sand flows out from the sand storage tank through the sand guide nozzle continuously, and the flowing dry sand continuously rubs against the sample under the drive of the rubber wheel;

[0041] The wear condition of the sample is judged by calculating the weight loss of the sample before and after wear or the scanning electron microscope image of the sample after wear.

[0042] The mass of 8.9945g before grinding is 8.6695g after 5 hours of wear, and the wear loss rate is 3.61%.

[0043] Such as Figure ...

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Abstract

The invention discloses a dry sand wear testing machine and a use method thereof, the dry sand wear testing machine comprises a sand storage tank, a sand guide nozzle communicated with the bottom of the sand storage tank, a speed controller mounted on the sand guide nozzle and used for controlling the flow rate of dry sand, and a rubber wheel, a planetary reducer and a servo motor which are positioned on one side below the sand guide nozzle and are sequentially connected, the sample clamp is positioned on the other side below the sand guide nozzle; and the power supply is electrically connected with the speed controller and the servo motor. The device is simple in structure and convenient to operate, and can better simulate the frictional wear condition in actual work without wasting mechanical equipment, so that the evaluation of the tribological performance of materials and the frictional wear performance between the materials is facilitated.

Description

technical field [0001] The invention relates to an abrasion testing machine and its usage method, in particular to a dry sand abrasion testing machine and its usage method. Background technique [0002] Major accidents caused by mechanical friction and wear are increasing day by day, causing serious property losses and even endangering the life and health of operators. However, the friction loss between the various parts is inevitable when the machine is running. Therefore, how to scientifically and reasonably obtain the wear critical value, calculate the service life of the machine and replace the parts in time is particularly important. [0003] Patent CN201010610042.9 discloses a kind of equipment for mortar grinding wear experiment, which includes driving motor, transmission belt, rotating shaft seat, tank body, temperature sensing device, rotary handle, device frame, screw lifting device, auxiliary motor , the transmission belt is connected to the drive motor and the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
CPCG01N3/56G01N2203/0005G01N2203/0226
Inventor 许祥平刘凯刘驰陈力王锡岭邹家生夏春智
Owner JIANGSU UNIV OF SCI & TECH
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