SU1226310A1 - Method and device for determining lubricating property of lubricants - Google Patents

Abstract

This invention relates to the field of lubricant performance monitoring. The purpose of the invention is to enhance the performance, accuracy and express determination of the lubricity of lubricants. The lubricant is fed into the camera with a pair of friction, the pair of friction is brought into relative slip and the triboEMF value is measured, which is proportional to the lubricity of the lubricants. 2 sec. pfl, 1 ill.

Description

I. one

This invention relates to the field of lubricant performance monitoring and is intended to control the lubricity of 1Lubricants.

The purpose of the invention is to improve the performance, accuracy and expressiveness of determining the lubricity of lubricants.

The drawing shows the device for implementing the method.

The device comprises a frame 1, into which a bearing 2 is pressed. On the latter, a chamber 3 is mounted, in which a saddle A is mounted. In the saddle 4 a fluoroplastic liner 5 is pressed, on which a flat annular sample 6 of pure copper is mounted. Sample 7 of steel 45 is mounted on a textolite shaft 8. In which resilient steel is reinforced on plate 9, which comes in contact with sample 7, a steel needle rod 10, which is connected to the microvoltmeter inlet (not shown), contacts the resilient steel plate 9.

The device works as follows.

On shaft 8, sample 7 of steel 45 is strengthened, and a copper sample 6 is installed in seat 4. Investigated lubricant mother aj :( is fed to chamber 3. The recording device is set to zero, the friction pair is brought to relative slip and the instrument reading is read. After the test, the test lubricant is removed from the chamber, the chamber and the pair of friction are rinsed with a solvent, without disassembling the device, and another test lubricant is fed into the chamber after washing.

The lubricity of lubricants is estimated by the amount

263102

arising from friction triboEMF, which increases the accuracy of the proposed method. The material with the best lubricity is the one that, when trying to test which, a lower triboEMF value occurs, i.e. less heat is available. The measurement of the TriboEMF value was made 4 minutes after the start of the experiment. To achieve the required accuracy, the tests are repeated 3-5 times. For one test, 25 ml of the lubricant tested is required.

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Formula and. acquisitions

one . The method for determining the lubricity of lubricants, which consists in compressing two specimens on a test installation, the contact surfaces of which are separated by a thin layer of the lubricant under investigation, and result in their relative slip, characterized in that and express determination of the lubricity of lubricants, alter the triad of the load-induced electromotive force arising from the friction of the samples, judged by the magnitude of which, the lubricity of the lubricant: full-time materials.

S

2.3 A device for determining the lubricity of lubricants, containing a base, holders of two samples fixed on it, as well as measuring the electrical conductivity of the contact, characterized in that it is provided with an elastic plate fixed in the holder of the second sample and a needle rod fixedly mounted on axis holder of the first sample.

Editor A.Shishkin

Compiled by V. Mikhalkin

Tehred L.Oleynik Proofreader M.Demchik

Order 2123/41 Circulation 778 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab ,, d.4 / 5

Production and printing company, Uzhgorod, Projecto st., 4

Claims (2)

Claim 1. A method for determining the lubricity of lubricants, which consists in compressing two samples on a test setup, the contact surfaces of which are separated by a thin layer of the test lubricant, and bringing them into relative slip, characterized in that, in order to increase productivity, accuracy and the expressivity of determining the lubricating ability of lubricants, change the triboelectric power, which occurs during friction of samples, the value of which is used to judge the lubricity of lubricants in. 2. A device for determining the lubricating ability of lubricants, containing a base, holders of two samples fixed on it, as well as nodes for measuring the electrical conductivity of a contact, characterized in that it is equipped with an elastic plate fixed in the holder of the second sample and a needle rod fixedly fixed. along the axis of the holder of the first sample.