SU472002A1 - Torque wrench - Google Patents

Description

one

The invention relates to tools and can be used to determine the magnitude of the torque when tightening the threaded connections.

A torque wrench is known, comprising a housing with a working head fixed in it, a handle, KOTOpoii rotation 0 coincides with the axis of the working head, an elastic element that is deformed when the handle is turned away from the housing, and a pointer pipicus, deceptively deforming the elastic element through the housing.

The proposed key differs from the lime in that it is provided with a bracket mounted transversely to its axis on the handle, the elastic element is made in the form of a ring, fitted between the ends of the bracket, and the corius is V-shaped.

Between the ends of the bracket and ring there are branches of the body that serve as restraints.

In addition, the key is made with a transverse bar, with the ability to move in the branches of the body and rigidly connected with a part of the ring opposite to the one to which the indicator probe has been inserted.

In such a case, it is possible to expand the range of measurement of the magnitude of the applied torque, to exclude the appearance of

in it residual deformation, and also eliminates the measurement of torques of various types.

FIG. 1 shows the proposed key; in fig. 2 is a view along L-A in FIG. one.

The diametric key contains a body 1 of a U-shape with a branch of PL 2, a working head 3 closed in it, a handle 4, a bracket 5, an adjustable handle -1 -1 transverse to its axis, resilient, and shaped like a ring 6, located between the ends of the bracket 5, the transverse Ilaic 7, mounted for movement in the branch x 2 of the housing 1, is rigidly connected to the part of the ring, and the sensor 8, the probe 9 of which interacts with the part of the ring 6 opposite to the part to which the bar 7 is folded.

Under the action of the force, the handle 4, through the bracket 5, acts on the pinch part of the ring 6, which is deformed, supported by the opposite part of the pa branch 2 of the V-shaped body 1.

Indicator 8, supported by a probe on the surface of the ring 6, is mounted on a strap 7 connected to the part of the ring 6 opposite to that which interacts with the probe, repeats these deformations, and its torque is equal to}.

3

When measuring the momeite of the opposite power supply, the clip 5 acts on a part of the ring 6. Together with the deformation of the ring 6, the bar 7 moves with a set indicator, and its indications are proportional to the torque value 1 of this moment.

The subject invented

Claims (3)

1. A torque wrench, comprising a case with a working head fixed in it, a handle, the axis of rotation of which coincides with the axis of the working head, an elastic element deformed when the handle is rotated relative to the case, and a switch indicator that senses the deformation of the unit element through the probe, differing in that, in order to expand the measurement range of the magnitude of the torque applied, it is equipped with a bracket mounted on the handle transversely to its axis, the elastic element is designed as a ring mounted between the ends brackets, and the body is made V-shaped. 2.Klyu on n. 1, characterized in that, in order to avoid the breakage of the elastic element or the occurrence of permanent deformation in it, the body branches serving as a limiter are located between the ends of the bracket and the ring. 3. The key according to claim 1, characterized in that, in order to measure torque values of different directions, it is provided with a transverse a strap mounted for movement in the branches of the case and rigidly connected to the part of the ring opposite to that to which the indicator probe is directed. FIG. FIG. 2