SU1744426A1 - Device for control of antifriction bearing run-out - Google Patents

Abstract

The invention relates to a measurement technique and can be used to control rolling bearing beatings. The aim of the invention is to simplify the design and ensure the control of radial beats. When inspecting, a monitored bearing 5 is installed so that its inner ring is based on the base supports 2 and 3 and the discharge rollers 4. A weight 15 is installed on the outer ring with a rod 16 with a magnet 17 at the end. The inner ring of the bearing 5 is driven into rotation by means of the motor 6, the coupling 7, the pulleys 8, 9, the axle 10, the plate 11, the bearing 12 and the clamping flange 13. The magnet 17 will fix the outer ring in the position determined by the position of the magnet 18. Meters 19 and 20 will fix axial and radial beats respectively. 2 Il.

Description

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The invention relates to a measurement technique and can be used to control rolling bearing beatings.

A device for controlling rolling bearing beats is known, comprising a base, a drive of rotation of one of the rings, a floating weight with clamping elements and a link-driver mechanism and a beat meter 1 fixed on the base.

The disadvantages of the known device include the ability to control only radial beats, the need to use a compensating coupling that affects the error in measuring beats. The presence of a mechanical connection in a transmission chain held by a compensation coupling or a rotatable load leads to random fluctuations in the load. Compensating for the center of gravity mismatch with the free rotation of the measuring ring and the coupling used also complicates the design.

A device for controlling rolling bearing runout is known. the prototype and the base containing, the basic supports installed on it, the rotational drive of one of the rings, the load mounted on the other rings, the driving mechanism fixed on the load and the axial displacements of the ring loaded with the load 2 fixed on the base.

The drawback of the device is that the controlled bearing ring is based on supports for an additional bearing, the use of which complicates the design and reduces the accuracy of the measurement of the beats. This device is closest to the proposed device.

The aim of the invention is to improve the accuracy, simplify the design and ensure control of the runout of the bearing.

This goal is achieved by the fact that the device for controlling rolling bearing beatings contains a base, basic supports mounted on it, a rotational drive for one of the rings, a weight mounted on another ring, a driving mechanism fixed on the base, and an axial displacement meter mounted on the base, loaded with a load, provided with an additional gauge of linear displacements, fixed on the base with the possibility of interaction with the cylindrical seating surface of the ring, loaded The base load is rigid and installed with the ability to interact simultaneously with the face and cylindrical surfaces of the rotating ring, and the driving mechanism is made in the form of rods with magnets at the ends and magnets mounted on the base with

the possibility of interaction with the corresponding poles of the same magnets.

Fig. 1 shows a diagram of an apparatus for monitoring rolling bearing beatings; on

figure 2 - the same. view from above.

The device comprises a base 1, basic supports 2 and 3 mounted on it, spring-loaded discharge rollers 4, rotational drive of the inner ring of the bearing 5, made in the form of a motor 6, coupling 7, pulleys 8 and 9, wheel 10, plate 11, spherical bearing 12, clamping flange 13 and columns 14, load 15, mounted on the outer ring of the bearing 5, the driving mechanism, made in the form of a rod 16 radially fixed on the load 15 with a magnet 17 at the end and a magnet 18. mounted on the base 1. a meter fixed on the base

19 axial displacements of a ring loaded with a load 15, and a gauge of 20 radial displacements. To compensate for the measuring force of the meters 19 and 20, spring-loaded

tips 21. The device can rotate both the outer and inner rings of the bearing 5. With the help of magnets 17 and 18, the movable ring is rotated to the position specified by the air gap between the magnets 17 and 18.

The device works as follows.

In the initial state, the controlled bearing 5 is mounted on rigid basic supports 2 and 3 and spring-loaded discharge rollers 4 with an internal ring. A load 15 is set on the outer ring of the bearing. A drive made in the form of an engine 6, a coupling 7, pulleys 8 and 9, an axle 10, a plate 11, a spherical bearing 12, a pressure flange 13 and columns 14 rotates the inner ring

controlled bearing. The permanent magnet 17, when the ring is rotated, will move radially to a permanent magnet 18 located on the base, ensuring the immobility of the outer ring.

Rotating, the inner bearing ring, located on the rigid supports 2 and 3, transmits the beating of the raceway to a non-rotating outer ring.

When measuring, the rotational drive of the inner ring of the bearing 5 rotates

the inner ring of the bearing under control through the transmission system, on the outer ring of the bearing 5, a weight 15 is installed with a fixed rod 16 with a permanent magnet 17 on the end, which interacts with a permanent magnet 18 on the base 1, to restrict it from turning. The permanent magnet 17, when rotating the ring, moves radially to a permanent magnet 18. Rotating, the inner ring of the bearing transfers the beating of the raceway to a non-rotating outer ring. Meters 19 and 20 will indicate the deviations of the inner raceway, i.e. runout of the bearing inner ring.

When the outer ring is rotated on the inner ring, a weight is set and measured on the inner ring of the bearing, where the meter indicates the deviation of the runout of the outer ring track, the runout of the outer ring of the rolling bearing.

Such a scheme for measuring the runout of bearings has the following advantages: the rejection of compensating couplings, which reflects on the accuracy of measurement, simplifies the design of the device and the possibility of using the proposed scheme to adopt automated means of controlling the runout of bearings.

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Claims (1)

Invention Formula A device for monitoring the rolling bearing beatings, containing a base, basic supports mounted on it, a rotational drive of one of the rings, a load mounted on another ring, a driving mechanism attached to the load and a measuring instrument for axial displacements of the ring loaded by the load, different that, in order to simplify the design and ensure control of the radial runout of the bearing, it is equipped with an additional gauge of linear displacements fixed on the base with the possibility of interaction and with a cylindrical seating surface of a ring loaded with cargo, the basic supports are made rigid and installed with the ability to interact simultaneously with the end and cylindrical surfaces of the rotating ring, and the driving mechanism is made in the form of rods with magnets on the ends and magnets mounted on with the possibility of interaction with the corresponding poles of the same magnets. Phage. 2