SU601587A1 - Balancing device - Google Patents

Description

The invention relates to a balancing technique and can be used to measure the parameters of product imbalances when balancing in a measurement technique.

Known balancing device containing a frame, a torsion shaft, suspended from the frame by means of an intermediate element and tangentially located to the shaft of the rods, a mandrel for mounting a balanced product, rigidly fixed on the torsion bar, fit the Hbie on the frame and interacting with the intermediate element, and drive the excitation angle oscillation-shaft 1.

The drawback of the device is its complexity and low measurement accuracy of the imbalance due to the contact of the piezoelectric sensors with intermediate elements.

The closest in terms of technical essence is a balancing device containing a frame, a torsion shaft rigidly fixed to the frame at one end, a holder in which the second end of the shaft is fixed, a mandrel for mounting a balanced product fixed on the torsion, two piezoelectric sensors located on the staini and fixing the yoke with the shaft in one plane, and driving the excitation of angular oscillations of the shaft 2.,

The drawback of the device is the low accuracy of measurements due to the fixing of the cage with the shaft in the same plane, which leads to the fact that piezo-sensors, thus installed, pick up all the variable components of the reactions of the cage.

The purpose of the invention is to improve the measurement accuracy.

The goal is achieved by the fact that the device is equipped with two clamps that interact with the holder and are installed opposite the corresponding piezo sensor, which are located in mutually perpendicular planes, and the second end of the shaft is installed with the possibility of rotation around its axis.

FIG. 1 shows a balancing device, a general view; in fig. 2 is a section A-A of FIG. one.

The device contains a frame /, torsion shaft 2, one end rigidly fixed on Stalin 1, a ferrule 3, in bearings of which the second end of the shaft 2 is mounted to rotate around its axis, the mandrel 5 for installing the balancing product 6 rigidly fixed on the shaft 2 , two piezoelectric sensors 7 and 8, located in mutually perpendicular planes on the frame / and interacting with the sleeve 3, two clamps 9 and 10, made in the form of CLAMP screws, interacting with the holder 3 and installed opposite the corresponding piezosensor 7 or 8, and the drive of excitation of angular oscillations of the shaft, made in the form of akorie 11, rigidly mounted on the mandrel 5 and interacting with the electromagnets 12, mounted on the frame 1.

The device works as follows.

A balancing article 6 is mounted on the mandrel 5, an actuator is included which excites angular oscillations of the torsion shaft 2, and hence the mandrels 5 with the product 6. The unbalanced amount of the balanced article is determined by the piezoelectric sensors 7 and 5, which due to the presence of bearings 4 in the cage 3, they do not perceive forces from torque, but due to their location in mutually perpendicular -plastic bridges, they react to radial loads.

The device makes it possible to determine the parameters of non-equilibrium of products with high accuracy due to a certain mutual arrangement of piezo-sensors, which react to radial loads, and clamps, interacting with the holder.

Claims (2)

1. USSR author's certificate L 313111, 25 cl. G 01 M 1/02, 1970. 2. USSR author's certificate No. 439713, cl. G 01 H 1/02, 1972. ig 1