RU58637U1 - DEVICE FOR RESEARCHING TOPOGRAPHY OF WORKING SURFACES OF PARTS OF ROLLING BEARINGS - Google Patents

Abstract

The proposed device relates to the field of engineering and is intended to conduct research on the topography of the working surfaces of parts of rolling bearings. The general installation device is as follows: racks are mounted on the measuring plate. In the racks, a high-precision screw with a flywheel is attached, a tracking device with a dial indicator with a division price of 1 μm is attached to the screw. To avoid turning the device, a tracking support is used. The indicator is fixed in the tracking device with a screw. The test sample with a flat surface is attached to the measuring plate with the help of strips and screws. To control the path length of the investigated surface, a measured ruler of increased accuracy was applied, with a division price of 1 mm. For the study of cylindrical surfaces (the universal joint of the cardan or the inner ring of the bearing), racks with clamps mounted in the bearing supports are mounted on the measuring plate. To fix the bearings in the support, retaining rings and a lock nut are used. The rack itself is mounted on a measuring plate with screws, with the possibility of moving the racks in the grooves of the measuring plate.

Description

The device relates to mechanical engineering and is intended to conduct a study of the topography of the working surfaces of rolling bearing parts.

Known profilograph - profilometer mod.252 (Yakushev P.I., Vorontsov L.N., Fedotov N.M. Interchangeability, standardization and technical measurements. M.: Engineering, 1986, from 196-203, Fig. 8.28, prototype) comprising a measuring unit with a counting unit and a recording device, a diamond needle, supports, a probe and an inductive transducer.

The disadvantage of this device is that when conducting static and dynamic studies of rolling bearings, there is a need to study the topography of the working surfaces of great length. Using a profilograph - profilometer is not always possible due to the complexity of the installation and the small length of the study sites.

In connection with the foregoing, an installation was developed for conducting topographic studies of working surfaces of a flat and cylindrical shape.

The technical task is to improve the research of the topography of the working surfaces of a flat and cylindrical shape of great length.

The technical result is achieved due to the fact that, in contrast to the prototype, the device contains a control measuring device, moreover, it is equipped with a tracking device mounted on a screw

increased accuracy with a dial indicator with the ability to move the indicator leg in horizontal and vertical plane along the test sample, the tracking device is equipped with a tracking support, and a tip with a technical diamond is installed in the indicator leg.

Figure 1 - presents a device for researching flat surfaces, a General view; figure 2 is the same side view; figure 3 is the same, a top view; figure 4 is a device for mounting cylindrical surfaces, a General view, figure 5 is a device for mounting cylindrical samples, for example, the inner ring of the bearing, General view.

A device for studying the topography of the working surfaces of parts of rolling bearings has a measuring plate 1 (Fig. 1, on which the racks 2 are mounted. The racks 6 are mounted with a high precision screw 6 with a flywheel 9, a tracking device 8 with a dial indicator 7 is mounted on the screw, with the possibility of movement indicator legs in horizontal and vertical plane, with a division price of 1 μm. For precision surface measurement, a tip with a technical diamond is installed in indicator leg 7. To avoid turning the tracking device 8, install and the tracking support 10 (Fig. 2). The indicator 7 is fixed in the tracking device 8 by a screw 11. The test sample with a flat surface 4 is attached to the measuring plate 1 using the straps 3 and screws 5. To control the path length of the test surface (flat, cylindrical) applied measuring line 12 of increased accuracy, (figure 3) with a division price of 1 mm

For the study of cylindrical surfaces (Figs. 4, 5), the racks 13 with clamps 18 mounted in the bearing bearings 15 are mounted on the measuring plate 1. For fixing the bearings in the support 15, locking rings 16 and a fixing nut 14 are used. The rack itself

mounted on the measuring plate with screws 19, with the possibility of moving the racks in the grooves of the measuring plate 1. In this device, the universal joint 17 (Fig. 4) or the inner ring 20 of the bearing (Fig. 5) are used as the object under study. Therefore, the mounting racks are made removable, they are replaced depending on the test sample with a different type of surface: flat or cylindrical.

The device operates as follows.

The test sample 4 with a flat surface is attached with the help of strips 3 and screws 5 to the measuring plate 1. The indicator leg 7 is mounted on the test sample 4 and fixed with a screw 11 in the tracking device 8. After fixing the indicator 7, the tracking support 10 is adjusted to adjust the system. By rotating the flywheel 9, the reference point is established on the measuring ruler 12. Next, by rotating the flywheel 9 with a given step, move the leg of the indicator 7 along the test sample 4 and take the readings of indicator 7.

To study the surface of cylindrical samples (Figs. 4 and 5), in the form of a cross 17 or an inner bearing ring 20, racks 13 are installed on the measuring plate and the test samples 17 or 20 are installed between them using the clamping device 18. The indicator leg 7 is mounted on the test sample 17 or 20 and is fixed with a screw 11 in the tracking device 8. After fixing the indicator 7, the tracking support 10 is adjusted to equalize the system. By rotating the flywheel 9, the reference point is established on the measuring ruler 12. Then, by rotating the flywheel 9 with a given step, move the indicator leg 7 along the test sample 17 or 20 and take the readings of indicator 7.

Thus, the proposed technical solution allows you to explore both flat and cylindrical surfaces of great length in one pass of the indicator leg.

The device has several advantages. The first is small dimensions; the second is the ease of maintenance and installation of measuring systems; the third is the study of both flat and cylindrical samples; the fourth is the study of long surfaces.

The device can be easily implemented in mechanical engineering and can be used to study the topography of the working surfaces of rolling bearing parts.

Claims (3)

1. A device for studying the topography of the working surfaces of parts of rolling bearings, including a control measuring device, characterized in that it is equipped with a tracking device mounted on a high-precision screw with a dial indicator with the ability to move the indicator legs in horizontal and vertical plane along the test sample. 2. The device according to claim 1, characterized in that the tracking device is equipped with a tracking support. 3. The device according to claim 1, characterized in that a tip with a technical diamond is installed in the indicator leg.