SU38804A1 - Lever dynamometer - Google Patents

Description

To determine the power of the engines in the number of instruments used for this purpose, the device with gears from the engine under test to the drum is known, which, when rotated, lifts the load suspended to the drum using a cable so that the load lifting speed and weight judge the power of the engine; The same device is also used to determine the forces required for idling the engine, which is achieved by turning the drum, which in turn rotates the engine at idle with a load suspended from the cable that encloses the drum.

The present invention is intended to clarify the adjustment of the dynamometer of the specified type to a specific, predetermined load, using the adjusting device in it as an arresting device for the instrument indicator arrow; both are achieved by using a micrometer as an instrument controller.

In FIG. 1 is a side view of the device with a partial section; and FIG. 2 is a sectional view from above;

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FIG. 3 is a side view of the ratchet engagement in the transmission to the drum; and FIG. 4-side view of the brake device.

The device consists of a drum 2, rotated by a cable 53 or a chain, at the end of which a cup 54 is fitted for a removable load 55; In order to differentiate the movement of gears in the device in the system of these gears, a second drum 50 is used, on which is also its own cable with a load 52 suspended thereto. The drums 2 and 50 rotate in opposite directions. For lifting weights 55, 52, there is a roller 8 with gear 9 and a ratchet 6, for directing the cable to the drum 2 the same roller 8 is used, having a screw cut along which the carriage 10 moves with two rollers II between which the cable passes. For the right and left strokes of the device, the coupling 18 on the shaft 14 driven from the drum 2 serves as a switch 19. The worm rotates to 29 from the axis of the wind wheel 2, in turn the rotating centrifugal regulator 31; bushing lever control 43 - 44 activates the stopwatch 42, which is specified by the lever transmission in the action-only when you turn onHHH drum 2; the counter 45 turns of the device has a drive in the form of a finger, mounted on the drum 50.

A stop 33 is in contact with the flange 30 of the controller bushing, which is connected to the micrometer 32; the micrometer bushing is movable in the frame of the device and is equipped with a gear rack connected with the gear sectors 37 of the lever U; the second arm of which serves as an arrow indicating the degree of uniformity of operation of the device during the test period. To stop the device, use the brake, which consists of a disk 25 sitting on the shaft 22 of the device, and a spring belt 26, which envelops the disk; one end of the belt 26 is fixed, while the other is connected to crank 28.

The test mechanism is attached directly to the shaft of the drum 2 or to the transmission shaft 14; in the latter case, due to the coupling 18, the direction of rotation of the tested mechanism can be changed.

The calculation of the required mobility to rotate the mechanism under study is determined by the usual method in the formulas, which reflect the speed of the tested mechanism, indicated by the counter 45 and the stopwatch 42, as well as the force required to move the mechanism measured by the load 53 on the device cup 54.

The magnitude of the maximum load on the iribor is controlled by the rotary head of the micrometer 32 moving the stop of the micrometer rod 33; the same reception sets the pointer of the lever 38 to zero.

The subject matter of the invention.

A lever dynamometer using a centrifugal regulator, characterized in that, as a limit load controller, and a catch to the arrow of its cathode | A micrometer 32 is applied in which the sleeve is freely placed in the undercut of the dynamometer and rack and pinion gear M 37 associated with a lever load screw 34 Micrometer enan en alz III, intended for communication with the centrifugal regulator 30. h

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