RU3034U1 - DEVICE FOR MEASURING THE RELATIVE POSITION OF THE ENDS OF BEARING RINGS - Google Patents

Abstract

A device for measuring the relative position of the ends of the bearing rings, comprising a housing with a support table, pressure washers, with upper and lower measuring units, axially movable loading and measuring rods, characterized in that the measuring rod is located below on the axis of the supporting table, on it the base washer for the inner ring of the bearing is pivotally mounted, the upper thrust washer for this ring is made in the form of a fork pivotally connected from above with the loading rod, at the other end A membrane is installed, which is placed in a membrane chamber made in the piston of the movement mechanism, while the measuring rod and the loading rod are installed in ball clearance-free bearings, the measuring units are equipped with inductive transducers electrically connected to the indicating device, the supporting tables and thrust washers are removable, and the lower the fork is equipped with a handle for swinging the inner ring of the bearing.

Description

the ability to move two bushings, one.

FOR contacting with a measuring d-bearing, and another S5 with tires allowing them to move, and an axially mounted rod mounted axially to the bushings with a latch on the end, made in the input of folding triangular flags, equipped with a piston and a channel for supplying the working medium .

Such a device burns through a very complex mechanism of displacement and loading, consisting of a coaxial 4-piston system, which requires a complex control device during the measurement and disables the measurement performance.

A tach device is known .for measuring the axial displacement of bearing rings, selected as a prototype (see autosweet I II05749 according to class MKI S 01 B 5/14, 1984), comprising a housing with a tilting rotary table, bearing and push-buttons the washer, the upper and the highest measuring unit, are kinematically connected ..® with a spring-loaded

 .N H - .. me. X -.

the axial direction of the rod and the axial movement and loading mechanism with a drive,

A. However, such a device is complex in its design, does not have high performance and accuracy of measurements.

It should be borne in mind that when controlling the relative entry of the ends of the rings at the bearings to be duplexed, the measurement accuracy is directly dependent on the accuracy of the measurement load. For example, when monitoring small-sized precision bearings, the protrusion is mrcron (I-rO IVIKM) at an axial load of 0.5i-IO nG. It is practically impossible to create a precisely metered load using the piston systems used in known devices, since all sealing elements (rubber rings, cuffs, seals) both in the manufacturing process and during operation have significant errors, which lead to a change in the created poschpt. effort and speed of their movement.

The task is to eliminate the technical and metrological shortcomings of the known devices. For measuring the relative position of the ends of the bearing rings, to simplify the design and measurement technology, to increase the accuracy and productivity of the measurement process.

This problem is solved by the fact that the measuring rod of the device is located below on the axis of the support table, the basic support washer for the inner ring of the bearing and the upper pressure washer are pivotally mounted. For this ring it is made in the form of a vu: articulated from above with the load rod, on the other end of which is installed a membrane placed in a membrane chamber made in a piston of the minimum IvIa displacement. In this case, the measuring rod and the loading rod are installed in ball-free gapless supports, and the measuring units are equipped with inductive transducers, the signals from which are fixed /// th are shown by the device. Support tables and. our washers are made interchangeable depending on the type of bearings that are being monitored, and the acquired fork is equipped with a handle. for swinging the inner ring of the sub-bearing, which contributes to the self-installation of rolling elements on the raceways of the bearing rings.

The utility model is illustrated in the drawing, which shows:

YuigD - general view of the instrument with measuring and pneumatic

schemes. - --Yx

A device for measuring the relative position of the rings of the bearing rings comprises a base II with a removable 1 l support table 2, on which the bearing 1a is mounted, which is controlled. A replaceable pressure washer 3 is put on the opposite end of the outer ring of the bearing, with which the measuring arm 9 contacts. At the base. A fork 4 is installed on the inner end of the inner ring, through which a measuring load is applied during measurement. The fork 4 is pivotally connected to the loading rod o, on the other end of which a membrane 6 is mounted, made in the piston 7 of the displacement unit 8. The fork 4 is equipped with a handle for swinging the inner ring of the bearing for the purpose of self-installation of rolling elements on raceways. The lower measuring unit 10 is mounted on the base II on the axis of the interchangeable supporting table 2, while the measuring rod .10 is axially spring-loaded and its upper part is pivotally connected to the pressure washer in contact with the inner ring of the sub-diaphragm. The loading rod 5 and the measuring rod of the assembly 10 are installed in ball clearance-free bearings, which eliminates movement errors, provides measurement accuracy and a given value of the measurement load. The value of the relative position of the ends of the bearing rings is measured by inductive transducers 12 and 13 and is fixed by a indicating device of model 275.

ru 17 in the displacement chamber 8. The movement of the piston 7 is controlled by a valve 16. Valve 15 creates a measuring load according to an exemplary pressure gauge 18 calibrated to predetermined values. The piston 7 of the movement mechanism 8, being in its lowest position, includes a pneumatic determinant 19, providing the necessary. load when measuring. The load on the controlled bearing can be made in the range of 0.5-180 kg, which is installed according to the model pressure gauge 18.

The device operates as follows.

The handle of the crane 16 is set to the Removing position, the cart and spirit are turned on, and the pressure gauge 17 is set to 0.4 MPa by the pressure regulator 14. The pressure gauge 18 (according to its calibration data) sets the preset measuring load to the pressure gauge 15. The changeable support table 2 is mounted on the base 11 and a tuning hard standard is placed on it, corresponding to the type of bearings being monitored. and it is replaced by a removable acquired washer 3, 1 the cockpit of the crane 16 is transferred to the Measurement position. In this case, the loading rod 5 moves down, creating a contact of the plug 4 with the standard. The air distributor 19 will be open, the membrane chamber 6 through the rod 5 will provide the specified load measurement. After that, the inductive transducers 12 and 13 are adjusted to the initial position on the scale of the device 275. Then, the tuning standard is removed and the controlled bearing 1a and the replaceable plain washer 3 are installed using the handle 16. The handle 4 makes easy inking (rotation by and 30 °) of the bearing inner ring and record the performance on the scale of the device 275 in comparison with the reference.

The use of a preassigned device. For measuring the relative position of the ends of the track of the sub-bearings ensures a higher productivity of measurement due to the use of ball clearance-free supports for the loading rod and measuring rod assembly 10, and the use of the meibrane as a loading mechanism, which ensures

given measuring load with accuracy up to -50 gr. In addition, the simplicity of the design of the device provides ease of maintenance and simplification of the measurement process.

In this way, the proposed technical solution has novelty in comparison with the prototype and is industrially applicable, that is, it meets the conditions for patentability of the utility model.

Authors: Applicant: Deputy General Director,. Chernevsky fjl V.I. Filippov B.M. Brodsky A, C, Lowering Bdino

Claims (1)

A device for measuring the relative position of the ends of the bearing rings, comprising a housing with a support table, pressure washers, with upper and lower measuring units, axially movable loading and measuring rods, characterized in that the measuring rod is located below on the axis of the supporting table, on it the base washer for the inner ring of the bearing is pivotally mounted, the upper thrust washer for this ring is made in the form of a fork pivotally connected from above to the loading rod, at the other end A membrane is installed, which is placed in a membrane chamber made in the piston of the movement mechanism, while the measuring rod and the loading rod are installed in ball clearance-free bearings, the measuring units are equipped with inductive transducers electrically connected to the indicating device, the supporting tables and thrust washers are removable, and the lower the fork is equipped with a handle for swinging the inner ring of the bearing.