SU57665A1 - Torque taper sleeve - Google Patents

Description

Tandem clutches are already known in which the driving and driving parts are connected to each other through the tilting counterweights, allowing the driven part to move during operation relative to the driving under the action of centrifugal forces and tangential forces perceived by the counterweights.

According to the invention, the pr) adopts a fitted bushing, based on the principle outlined above, in which, in order to use it for measuring the power (transmitted moment) of the angle; the deviation of the counterbalance counterweight, the latter is connected through a gear with a rotary brush of a sectioned resistance provided with circumferential contacts and a current source that is permanently connected to the circuit. A voltmeter, graded in degrees of angular deviation, is included between the brush and the beginning of the indicated resistance.

When the tilting counterweight is rotated and the brush moves along the contacts, the sectioned resistance is reduced by the voltage drop in the Resistance section between its beginning and the brush installation position, measured by a voltmeter, it is possible to judge the magnitude of the mathematical offset of the counterweight and, therefore, the amount of transmitted power.

In FIG. 1 and 2 schematically depict a dynamometer sleeve in two projections; FIG. 3 — electric circuit of the registering device; FIG. 4 is a graph for calculating engine power; FIG. 5- general view of the front hub; FIG. 6 is a longitudinal section of FIG. 7 is a section along the line AA in FIG. 6; FIG. 8 is a section along the line OB in FIG. 7

According to the functions performed, the hub mechanism can be divided into two parts: the power part transmitting power and the part registering the angular deviation of the mandrel 20 from the equilibrium axis OZ {Fig. one). The power transmitting mechanism in FIG. 1 is depicted schematically in the form of a disk sitting on the drive shaft 1 and equipped with a drill, highlighted on the disk at point O. On the driven shaft, a leash 19 is mounted, which is connected to the tandem rod and is able to rotate around its axis.

The moment of useful resistance applied to the disc, which sits on the driven shaft, tends to deflect the matting by 1 off angle from the radial direction OZ to the opposite direction (Rotation, the moment of centrifugal force of the tandem load, tends to return it to its original position. When transmitting the constant torque of the axis of the OZ tilt will deviate from the radial direction of OZ at a certain angle L. This position can be called the dynamic equilibrium position. When transmitting a periodically varying moment, the system.ma The motor assembly will be subject to torsional oscillations and in this case the dynamometer bushings offered can be simultaneously used as an elastic coupling. By including the coupling into the engine mass system, dangerous resonant zones can be eliminated in the working range of engine revolutions. attached to the primary of the toothed sector 3, coupled by means of gears 4 to 5 with bristles 6, on the sleeve of which a brush 9 is fixed, sliding along contacts 11 and searching for UO ( the exact number is selected depending on the required accuracy of measurement of the angular deviation of the pendulum). From the gear sleeve 6, the brush 9 is isolated from textolite pads — and the contacts // and 10 are insulated from the disk fastened with a drive shaft, a textolite ring. The taps from the CO-resistor 12 are connected to the contacts //, and the number of these contacts is selected in accordance with the required measurement accuracy. Three contact rings 7 are mounted on the master shaft /, the beginning of the resistance 12 is connected to one of them, the end of the resistance is connected to the other and 10 is connected to the third. Resistance 12 is connected to the power supply circuit through the corresponding rings 7 and contact brushes (fkg. 3). successively with the adjusting resistor, by means of which a constant voltage measured by a voltmeter V is maintained at the terminals of the resistance 12 measured by a voltmeter V. The second voltmeter Vi, whose scale is graduated in degrees The OZ direction is connected through brushes 8 on one side to contact ring 7, connected to bus 10, and on the other to ring 7 connected to the start of resistance 12. With a deviation of 1m from the radial direction .OZ (cf. fig. 1), the brush 9 moves along an arc of a circle, slipping along the contacts 11 W bus 10. From the diagram. according to fig. 3 that with rotating the brush 9 times the HiOCTb potentials at the terminals of the voltmeter Vi will change in proportion to the angle of rotation of the axis of the parallel, and by selecting the appropriate gear ratio of gear 5-6 the angular deviation of the brush 9 can be increased. By knowing the magnitude of the angular deviation a, the engine power can be calculated using the appropriate formulas. In order to simplify the process of calculating the amount of power, a graph can be built with pre-calculated power values for different values of a. Such a graph is depicted in FIG. 4, where the rotational speed n is plotted on the abscissa, and the ordinate is the power in the CKOiM logarithmic scale Ne. One of the possible (Variants of the design of the tandem dynamometer sleeve for measuring the power of an aircraft engine in flight is shown in Figures 5-8 of the drawing. On the standard end of the crankshaft 1, the engine is rigidly fixed (in the usual way) the sleeve 2, in the eyes of which the fingers 21 are hung tiki 20. On sleeve 2 on Needle bearings: 13 wife 14, 15 inta is spread, consisting of D1V.Oh halves, fastened by means of chatting 18 and leashes 19, the end of each run comes in with a bronze sleeve 23, pressed mounted in the slider 22, placed in the hole of the tiller, located on the axis of the latter.

the movement of the bushing 14-15 of the screw is limited by the thrust ball bearings 16 and 17.

To eliminate excessive deviations of the handbag 20 from the radial directional OZ and impacts when starting OR: a sharp increase in engine speed, the space 24i and above the ram and under the slider 22 is filled with oil, which flows through the hole in the crankshaft and bushing 2, through the ring the space in the finger 21 and the ball valve 25.

The ball valve serves to keep the oil in the space inside the master when the engine is stopped.

Within the limits of permissible angular deviations of the tambour, the slider 22 disperses the oil through the corresponding holes in the body of the tambourine and in the body of the slider from space 24 to space 242.

When the permissible limits of the angular deviation from the radial direction are reached, the slider 22 closes the opening 27, as a result of which the oil flows from the space into the space 24 through the openings 26 of a small section.

The further work of the oil damper is no different from the work of such on the aircraft shaft.

Instead of oil, a special cold liquid may be used.

The design of the mechanism that records the angular deviation of the master, sleep from FIG. 5-8 of the drawing, which bear the same designations as in FIG. 1 and 2.

Measuring instruments (voltmeters U and Vi) are installed in the cockpit.

The author indicates that a recording device can be used as a recording device.

The subject matter of the invention.

Torque tank

gvtulka in which the master and the knowledge

the parts are connected to each other through an assembly of counter-weights, which allow the driven part to be displaced during operation relative to the leading part, characterized in that, in order to use the sleeve for measuring the power (transmitted moment) of the various driving mechanisms, the counterweight connected through a gear 3-6 with a rotary brush 9 mounted on the leading part of the sleeve sectioned resistance 12, constantly connected to the circuit of the current source and equipped with contacts located along Circumference between the beginning of which resistance and the brush 9 is included a voltmeter graduated in degrees of angular deviations, so that when the swing of the counterweight is at a certain angle and the corresponding angular movement of the brush 9 through the resistance contacts 12, the voltage drops across the resistance section 12 between its beginning and the installation point of the brush, measured by a voltmeter, you can

It was to judge the magnitude of the angular deflection of a talted counterweight, and

consequently, about the transmitted power.

E copyright certificate E. A. Eryukova

No. 57665

1

/ 2

FIG. 2

Phil 4

E copyright certificate E. A. Eryukova

No. 57665

Wed5

HermH 6