SU1610338A1 - Arrangement for static balancing of articles - Google Patents

Abstract

The invention relates to mechanical engineering and can be used for static balancing of various products. The purpose of the invention is to simplify the design and increase productivity due to a different form of mandrel for balancing products, a sensitivity adjustment unit and an imbalance indicator. The device for static balancing of products comprises a base 1 in the form of an aerostatic spherical lining, on which a mandrel 2 with a spherical bearing surface is placed on the floor. A sensitivity adjustment unit is placed in the cavity of the mandrel 2 in the form of a rod 4 with annular grooves 5 and a sleeve 6 for fastening the balancing article 7. The unbalance indicator is made in the form of a curvilinear scale 9 fixed on the base 1 with the possibility of rotation around an axis perpendicular to it. 1 il.

Description

The invention relates to mechanical engineering and can be used for static balancing of various products.

The purpose of the invention is to simplify the design and increase the productivity of the device due to a different form of the mandrel for the products to be balanced, the sensitivity adjustment unit and the unbalance indicator.

The drawing shows the proposed device.

The device comprises a base 1 in the form of a concave aerostatic spherical support, a mandrel 2 placed on it with a spherical bearing surface and a cavity 3, which can be cylindrical or spherical. In cavity 3 there is a sensitivity adjustment unit in the form of a rod 4 with a crl - by grooves 5 and vtLKO 6, designed to secure

of the balanced product 7 and fixed from movement on the rod) 4 washer 8. The annular grooves 5 together with the washer 8 are designed to align the center of mass of the balanced product 7 with the center of the spherical bearing surface of the mandrel 2. The rod 4 can also be made threaded, and sleeve 6 -, in the form of a nut.

The unbalance indicator is made in the form of a curvilinear scale 9, the radius of curvature of which is equal to the radius of the sphere of the base 1. The scale 9 is hinged on the turntable 10 placed on the base 1 by means of a roller bearing 11.

The mandrel 2 with the rod 4 and the sleeve 6 forms a moving system, the center of mass of which, to ensure stability, is below the center of the sphere of the mandrel 2.

The device works as follows.

The balanced product 7 is fixed on the sleeve 6 and mounted on the rod 4-, after which compressed air is fed into the gap between the supporting surface of the mandrel 2 and the inner surface of the base 1. At the same time, the mandrel 2 pops up on the air cushion and is in a suspended state, which allows it, under the action of an imbalance of the product 7, to be turned towards its heavy place.

Next, the magnitude and angular position of the unbalance of the product 7 is determined, for which the scale 9 is rotated around the vertical axis of the base 1, the highest point on the edge of the mandrel 2 is determined and the unbalance value is read on the scale 9. The diametrically opposite point corresponds to the location of the imbalance, which is compensated by any known method.

With an imbalance of cylindrical type products 7, it is also possible to determine the position of the unbalance correction plane coinciding with the axial plane of the center of mass of the product 7. For this imbalance measurement is carried out twice, each time the product 7 is installed on the sleeve 6 in different positions different from each other by rotation product 7 on the sleeve 6 one of its ends in the opposite direction. According to the results of the imbalance measurement, the axial position of the center of mass of the product 7 is analytically determined, which is taken as the position of the correction plane.

Formula 3 turns around

A device for static balancing of products, comprising a base in the form of an aerostatic spherical inlet, placed on it a mandrel for a product with a spherical bearing surface, a sensitivity adjustment unit and an imbalance amount indicator, characterized in that, in order to simplify the design and increase productivity, the mandrel is hollow , the sensitivity adjustment unit is made in the form of a rod with annular grooves and a sleeve placed in the cavity of the mandrel for securing the product , and the unbalance indicator is made in the form of a curvilinear scale with a radius of curvature equal to the radius of the sphere of the subductor, placed on the base with the possibility of rotation around an axis perpendicular to it.

Claims (1)

Claim A device for static balancing of products, comprising a base in the form of an aerostatic spherical thrust bearing, a mandrel placed on it for a product with a spherical bearing surface, a sensitivity adjustment unit and an indicator of the magnitude of the dis-. balance, characterized in that, in order to simplify the design and increase productivity, the mandrel is made hollow, the sensitivity adjustment unit is made as a rod with annular grooves and a sleeve in the cavity of the mandrel, designed to fix the product, and the imbalance indicator is made in the form of a curvilinear scales with a radius of curvature equal to the radius of the sphere of the thrust bearing placed · on the base with the possibility of rotation around an axis perpendicular to it.