SU1155880A1 - Device for measuring torque - Google Patents

Abstract

A DEVICE FOR MEASURING A ROTATING MOMENT, comprising a rotatable body with a pointing arrow 8CBCJ f. TE;,: - SiflJJi;:; The fixed gearbox, main gears, rigidly connected to the input and output shafts of the device, and kinematically associated satellites, which are rigidly connected to an oblique roller, mounted in bearings of a rotary body associated with a force action element, characterized by that, in order to improve the measurement accuracy, the rotary body is made U-shaped and equipped with a bearing placed on the crossbar of the U-shaped body and connected to the element of the power action, made in the form of a spring (Leny. SP About 00 00

Description

The invention relates to a measuring technique and can be used to measure the moment on the shaft of horizontal machines, as well as a safety 5 Ufi connecting the shaft of a high power motor with the shaft of the working axine.

Torque measurement devices are known, comprising a fixed body, a main gear connected to the master and a driven shaft, and two latitude gears associated with a movable suit carrying a directional arrow 15 and connected to the frame with screw springs with 1J.

However, the device is characterized by insufficient accuracy, due to the reflected angle of rotation of the movable disk.

The closest in technical essence to the invention} 1I) is a device for measuring torque, comprising a rotatable 25 housing with a pointing arrow, a fixed scale, main gear wheels rigidly connected to the input and output shafts of the device, and kinematically connected with them are tellanites, which are rigidly connected with a common roller, mounted in bearings of a rotary body, connected with a force element. in the form of a cargo truck

The disadvantage of this device is low accuracy, due to the limited angle of rotation of the hull due to the fact that the hull is made of Q in the form of a frame, and the element of force action on the hull in the form of a cargo swing.

The aim of the invention is to increase accuracy.

This goal is achieved by the fact that, in a device comprising a rotary body with a pointing arrow, a fixed scale, main gear wheels rigidly connected to the input 50 and output shafts of the device, and kinematically associated satellites that are rigidly connected to a common shaft. . lump mounted in bearings of a rotary body associated with the 55 ctmoBoro element, the rotary body is filled with a U-shaped and equipped with a bearing placed on

the crossbar of the U-shaped case and connected with the element of force action, made in the form of a spring.

FIG. 1 shows schematically the device, a general view; in fig. 2 cut A-A on. FIG. one.

The torque measuring device consists of an engine 1, on the shaft 2 of which an end section on bearings 3 has an U-shaped rotary body 4 which, with another end section through the bearing 5, rests on the shaft 6 of the test machine 7 located coaxially with respect to the shaft 2 of the engine 1. The sections of shafts 2 and 6, located on both sides of the U-shaped housing 4, which are the input and output shaft of the device, are fitted with gears 8 and 9, which engage with the satellites 10 and 11. The latter, in turn impaled and the ends of the roller 12 located on the bearing 13 in the crank section of the U-shaped housing 4. The cross of the U-shaped housing 4 is provided with a bearing 14 connected to the spring To the U-shaped housing 4 on the engine side 1 is fixedly attached to the indicator of the measured value (arrow) 16, and to the engine body 1 - scale 17.

Engine 1 and test machine 7 are installed respectively on frames 18 and 19.

The device works as follows. .

The torque generated by the engine 1 during its operation through the gear wheel 8, the satellite 10 and the shaft 12 is transmitted to the satellite 11, which with its teeth presses against the teeth of the wheel 9. As a result, the satellite 11 begins to roll around the wheel 9, At the same time, the satellite 10 rolls over the gear wheel 8. In this case, the U-shaped body 4 rotates relative to the coaxial shafts 2 and 6. Together with the body 4, the angular displacement receives an indicator of the measured value (arrow) 16.

The rolling of satellites 10 and 11 on the gears 8 and 9 will continue until the moments are equal from the teeth of the rolling satellites 10 and 11 and the resistance 3 to the rotation of the shaft 6 of the test machine 7. When the load on the shaft 6 of the test machine 7 increases ( and a corresponding increase in the resistance of its shaft), the rolling of the wheels 10 and 11 along the gear wheels 8 and 9 continues. As a result, the U-shaped body 4 and with it the indicator 16 will move to an even greater angle. Upīts equality mentioned moments By reducing the load on the shaft 6 of the test machine 7 przpkina 1.5 returns the U-shaped housing 4 in a position 04 at which there will be a mogshntov equality. In case of a sharp increase in the load on the shaft 6 of the tested machine 7, the U-shaped case will perform a rotational motion relative to the shafts of the engine and the tested machine, which will eliminate the overload of the engine. The invention makes it possible to improve measurement accuracy by creating conditions for direct (direct) torque measurement and a significant increase in the angular stroke of the indicator of the measured value, since the housing can rotate freely by angles of 180 or more.

Claims (1)

DEVICE FOR TORQUE MEASUREMENT, comprising a rotary housing with a directional arrow, a fixed scale, main gears rigidly connected to the input and output shafts of the device, and kinematically connected satellites that are rigidly connected to a common roller installed in the bearings of the rotary housing connected with an element of power action, characterized in that, in order to increase the accuracy of measurements, the rotary housing is made U-shaped and equipped with a bearing placed on the U-shaped crossbeam case and associated with the element of power impact, made in the form of a spring. Fig! > 1 1155880 2