SU203289A1 - DEVICE FOR MEASURING TORQUE - Google Patents

Description

Torque measuring devices are known that operate according to the principle of torque dependence on the twist angle, which include a torque meter and a dial-type indicator.

The known devices are difficult to manufacture and unstable when measuring.

Compared with the known structures, the device described makes it possible to simplify and increase the accuracy of the continuous determination of the torque. This is achieved by the fact that the torsometer is made in the form of two, hollow and continuous shafts entering it; on one side, the ends of the shafts are rigidly fastened together, and on the other ends of the shafts a follow-up device is mounted, which consists of two adjustable guides with opposite inclines and fixed on the hollow shaft, as well as a spring-loaded lever mechanism mounted on a solid shaft.

The drawing shows a diagram of a device for measuring torque.

The device comprises a hollow shaft 1, which is made of spring steel with a high yield strength; shaft 2, carrying lever 3 with a spherical tip 4; sleeve 5; indicator 6; spring 7 and adjustable guides 8.

The shaft / is rigidly connected at one end to the shaft 2, through which the measured torque is transmitted. During operation of the device, the free ends of the shafts rotate with respect to each other by a certain angle, determined by the deformation of the shaft.

To obtain the axial movement of the indicator leg 6, which is proportional to the twist angle, a two-arm lever is applied.

gear ratio 1: 5. The spring 7 constantly presses the spherical blade 4 of the lever 5 onto the adjustable rails 8, which determines the following system operation principle.

When transmitting the torque, the tip 4 together with the lever 3 will move from position a to position в, i.e. it will turn by angle φ, while the second lever arm will rise by an amount proportional to

the applied moment and the indicator arrow 6 will begin to deviate from the zero position. As the load increases, the lever rises, and the indicator tip moves up, and as the load decreases

the indicator tip is lowered, the arrow returns to zero zero.

Subject invention

A device for measuring the torque, but the magnitude of the twisting angle of the rotating shaft, containing a torsiometer, a dial gauge and a lever mechanism, characterized in that, in order to improve the design, improve the accuracy and continuity of the measurement,

made in the form of a hollow and solid shafts entering it, the ends of which are rigidly fastened on one side, and the following system mounted on the other ends of the shafts, consisting of two adjustable guides with opposite inclines fixed on the hollow shaft and a spring-loaded lever mechanism mounted on a solid shaft.