SU1632143A1 - Correction composition - Google Patents

Abstract

The invention relates to a balancing technique in mechanical engineering and improves reliability by eliminating the uncoupling of the corrective mass from external influences. The correction mass moves in the annular grams with a trapezoidal cross section of the rotor groove and consists of two elements 4 and 5 with a cross section in the form of a trapezium. The elements contact each other. another plane 6 extending through the side of the trapezium. In the element 4, a retainer is installed in the form of an elastic element 7 and a ball interacting with the end of the rotor groove, with the result that the elements are wedged and fixed in the rotor groove. 4 yl

Description

The invention relates to a balancing technique and can be used for balancing large rotors.

The aim of the invention is to increase reliability by eliminating the release of corrective mass from external influences.

Fig. 1 shows corrective mass, section; FIG. 2 is a view along arrow A in FIG. one; Fig 3 is a view along arrow B of Fig 1; in fig. 4 is a view along arrow B in FIG. 2

Corrective mgs 1 is located in the groove 2 of the rotor 3, which is annular with a trapezoidal cross section, and consists of two elements 4 and 5 with a cross section in the form of a trapezium, installed with the possibility of interaction with each other by planes 6 passing through the side of the trapezia B of one of the elements

a retainer is installed in the form of an elastic element 7 for which a spring is used, and a ball 8 interacting with the end of the rotor groove, as a result of which the correction mass is wedged and fixed in the rotor groove. The corners 9 serve to ensure the joint rotation of the two elements into the rotor groove and the grooved protrusion 10 for contact, for example, with a grooved end 11 of the rod 12 of a hydraulic cylinder 13 fixed on a fixed rack (not shown)

Adjustments are made as follows.

After the rotor 3 installed in the supports of the vacuum test bench (not shown in the drawing) emerges, the angle and the imbalance value in the correction planes are measured at the operating frequency. The installation location of the corrective masses is stopped. The rotor is stopped and

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when used to press, for example, a hydraulic cylinder, a grooved end 11 of the rod 12 and a corrugated protrusion 10 of the corrective mass 1 are fed. Fluid is supplied to the hydraulic cylinder 13, the rod of which acts on the element 4 and embeds it in the trapezoidal groove 2, squeezes the spring element 7 and relaxes mass of

Then rotate the rotor to the desired angle and turn off the hydraulic cylinder. Under the action of the elastic element 7, the element 4 returns to its original position, fixing the correction mass in a predetermined position. Similarly, the permutation of the correction masses is made in the other correction planes.

five

Claims (1)

Claims of the invention Correction mass containing two elements for trapezoidal cross section with a trapezoidal cross section and a trapezoid cross section and a retainer, characterized in that in order to increase reliability by eliminating unlocking of the corrective mass as a result of external influences, the retainer made in the form of an elastic element connected with one of the elements and designed to interact with the end of the rotor groove, and the elements are installed with the ability to interact with r with another plane passing through the side of the trapezium about 1110 Thebes Type B G1 in id in FIG. four