SU767607A1 - Adjustment device for testing arrangement - Google Patents

Description

(54) ADJUSTING DEVICE TO THE TEST The invention relates to a test technique and can be used in the construction of test benches designed for rotors, mainly drum-type. An adjustment device to the test bench is known, which contains an output signal sensor and an amplifier connected to it in the feedback circuit fl. A disadvantage of this device is that it cannot be used for test benches for research rotors. The closest to the proposed technical entity is an adjustment device for a test bench containing a base and a rheostat with a handle mounted on base 2. The disadvantage of such a device is that it does not provide high reliability tests of rotors of a specific design, for example drum . The purpose of the invention is to increase confidence. STAND This goal is achieved by the fact that the device is equipped with rigidly fixed 1N1s (5VANSh1 illuminators, photodetectors located opposite them and connected to the last electromagnets with the cores interacting with the stick of the dimmer.) Fig. 2 shows a section A-A in Fig. 1. The device comprises a base 1, a rheostat 2 with a handle 3 mounted on the base, an axis 4 of the handle, a plate 5 mounted on an axis 4 rigidly connected to the base 1 the illuminators 6-10, opposite the photodetectors 11-15, and electromagnets 16-20 connected to the photodetectors with the bark 21-25, interacting with the plate 5 located on the same axis 4 with the handle 3 all the way along its movement while turning the handle The stand has bearing supports 26, 27, the rotor 28 under study, rotor electric drive 29 connected to the rheostat 2. Illuminators 6 10 and photodetectors 11-15 are attached to the base in such a way that the light rays are parallel to the axis of rotation of the rotor. The distance of each beam from the axis of rotation is selected based on the condition that the limit angle of rotation of the handle, limited by the crust of the corresponding electromagnet, is permissible for a rotor of a given diameter of the rotation speed.

The operation of the device is as follows.

When the rotor is not on the stand, the circuits of the photodetectors 11-15 are open, and the core of electromagnets is sunk into them. In this case, the handle 3 can be turned to the maximum angle. When the sgtora is mounted on supports 26, 27, it intersects part of the rays of the illuminators, their electrical circuits close, electromagnets operate, and their core limits the angle of rotation of the handle, thereby the rotor with a certain diameter limits the maximum; Rotation speed to its permissible previously calculated value -

Thus, the proposed adjustment device for

767607

The electrical connection of the handle stops with the forming surface of the rotor creates conditions ensuring an increase in the reliability of studies of rotors of specific structures and considerable masses. .

Claims (2)

Invention Formula An adjustment device to the test bench, comprising a base and a rheostat with a handle, ycra-i updated on a base, characterized in that, in order to increase reliability, it is equipped 5 fixed on the basis of illuminators located on. against them are photodetectors and electromagnets connected to the last with coils interacting with 0 with a rheostat handle. Sources of information taken into account in the examination C 1. Yorish Yu. I. Vibrometry. M., Mechanical Engineering, 1963, p. 634. 2. Kuiydzhi, A.A., et al. Automatic balancing of rotors of high-speed machines, M., Mashinostroyenie 1974, p. 24 -25 (prototype).