SU1439469A1 - Friction testing machine - Google Patents

Abstract

The invention relates to tribological testing of materials under dynamic loading. The goal is to expand operational capabilities by creating shock load at a given point of reciprocal movement during testing. Counterblocks 8 are fixed on the table 7, and samples are mounted in the holder 3. By means of mechanism 9, the specimens are brought into contact with counterblocks 8. Brazing 12 establishes a static load. As the cam rotates, the eccentric 13 rests on the carriage 2 and sets it in motion. Copier 11 compressing spring 6 through lever 5 changes static load. Cam 16 through the plunger 15, the nut 17, the spring 18 and the rocker 14 transmits the shock load on the samples. By changing the position of the cam 16 relative to the eccentric 13, the shock load is set at a given point of relative movement of the samples. 1 il. Yu

Description

j

with so

4 O5 CD

The invention relates to a testing technique and can be designed for the investigation of the tribotechnical properties of materials and lubricants under dynamic loading,

The purpose of the invention is to expand the operational capabilities by creating a shock loading during testing at a given point of mutual movement,

The drawing shows a diagram of the friction mat.

Mapping friction contains base 1, carriage 2, sample holders 3, load unit, complete in the form fixed on base 1 when:; and axis 5 of lever 5 interacting with one arm through spring 6 with corresponding holder 3 samples, table 7 for fastening the contra-strips 8, the table-raising mechanism 9, 7 (the bracket 10, the lever 5, the other arm communicating through the sms copier 11 with the carriage 2 the nut 12 regulates the static load force, the eccentric 13, the yoke 1A rigidly connected to the pusher 15 ,, cam 16, nut 17, spring 18.

The friction machine works like this.

Counterblocks 8 are fixed on the table 7, and samples are mounted in the holder 3. By means of mechanism 9, lifting table 7 samples are brought into contact with counter-specimens B. Regulating nut 12 sets the required static load. During rotation, the eccentric 13, resting against the carriage 25, drives it in a movement in the horizontal direction, carried out a reciprocating movement of the samples relative to the counter-specimens 8, fixed

ten

15

39469 2

A copier 11, which is clamped on a carriage, compresses the spring 6 through the lever. 5, changes the static load on the sample. The cam 16 rotates in the vertical direction the pusher 15, which transmits the shock load installed by means of the nut 17 and spring 18 through the rocker 14 to the samples mounted in the holder 3. Change the position of the cam 16 relative to the eccentric 13, set the shock load to the point of mutual movement of the tested samples.

dp

20

thirty

35

If necessary, the eccentric 13 uses a bracket 10 to vertically move the sample holder, which ensures one-sided mutual movement of the tested samples.

Formula I.3 gain

A friction machine containing a base mounted on it with the possibility of moving the carriage, a drive of reciprocating movement connected with it, an eccentric connected to it, a unit connected to it kinematically, loadings and sample and counter holders holders, that, in order to expand operational capabilities by creating, during the testing of impact loads at a given point, mutual displacement, it is equipped with a beam, whose shoulders are connected to the respective specimen holders, and a cam, connected with the drive of the reciprocating movement and interacting with its profile surface with the rocker arm.

Claims (1)

A friction machine containing a base mounted on it with the possibility of moving the carriage, an associated drive of reciprocating movement, an eccentric connected to it, a kinematically associated node, loading and sample holders and counterpiece, characterized in that operational capabilities by creating, during the test, a shock loading at a given point of mutual displacement, it is equipped with a beam, whose shoulders are connected to the respective sample holders, and a cam is connected with a drive reciprocating movement and interacting its profile surface with the rocker arm.