SU714205A1 - Stand for testing antifriction bearings - Google Patents

Description

I.,

The invention relates to mechanical engineering and can be used to test sliding bearings.

A stand for testing sliding bearings is known, which contains a STEEL, a shaft with necks rigidly mounted on a stain for setting the tested slip pre-fins, radial loading, a reciprocating movement mechanism with clips for mounting the x test cases and a means for registering the moment of friction. The movement is made in the form of a hinged lever spatial four-arm, and on the shaft there are mounted. With spherical outer. the surface in which the test bearings are mounted 1

The disadvantage of the known stand is that, under heavy loads, inertial forces arise in the lever spatial four-starter, which do not allow fixing the true value of the load.

The aim of the invention is to approximate the test bearings to actual working conditions.

This goal is achieved due to the fact that the mechanism for returning the sprayed film is made in the form of a Hydraulic cylinder mounted on a bed on both sides of the shaft axis, the rods of which are pivotally connected to the frame rigidly connected to the clips.

FIG. 1 depicts the proposed

0 stand; in fig. 2 - section aa of FIG. 1,

The stand contains a frame 1, a shaft 2 with necks 3 fixed on a frame for installing tested sliding bearings 4, a radial loading mechanism 5 consisting of four hydraulic cylinders, a reciprocating rotary movement mechanism b, including two hydraulic cylinders with rods 7, a frame of 8 seconds fighters 9

0 to install the housings of the tested bearings 4, while the hydraulic cylinders b are mounted on the cTanine 1. on either side of the shaft axis 2, their rods are hinged to the frame 8,

5 rigidly attached to the yoke 9 links 10. The stand is also provided with a means of registering a friction moment in which strain gauges are glued onto beams of equal resistance.

0 NIN 11 mounted on shaft 2 and

Claims (1)

Claim A test bench for sliding bearings, comprising a bed, a shaft rigidly fixed to the bed with necks for installing the tested sliding bearings, a radial loading mechanism, a mechanism for reciprocating rotation with cages for mounting the bodies of the tested bearings and a means of recording the frictional moment ^ characterized in that , in order to bring the 15 tests closer to the real conditions, the mechanism of the reciprocating rotational motion_. , ... made in the form of installed, it is possible to fix ’on the bed on both sides of the axis of the shaft of hydraulic cylinders, the rods of which 20 are pivotally connected by a frame rigidly connected to clips.