SU109448A1 - A device for measuring the pressure forces of a sawn bar on fiber in scutching machines - Google Patents

Description

The subject of the invention is a device for measuring the pressure forces of a billet bar on a fiber in scutching machines using an electrical resistance strain gauge.

The device allows you to measure the pressure force directly on the working body of the scutching machine. It is made in the form of a strip between the guiding balls, covered by the fiber being processed and the interacting ends with toe springs, which are not compatible with wire resistance sensors and attached to the stiffener corner of the blade.

FIG. 1 is a cross-sectional view of the device; in fig. 2 is a view according to AL in FIG. one.

Two annular springs / with a diameter of 50 mm are fixed at a distance of 200 mm from one another to a stiffener angle 2 attached to the axle beam.

On the part of each of the springs / there are two wire resistance sensors 3 glued, one from the external and another from the internal of the springs.

The ring bar 4 is freely supported by a loosely movable strip 4 with a working edge of a thickness of 3 ml to a length of 300 mm, encompassing the treated rim. In order to reduce the friction of the nlank, it is moved between the guide balls 5 located on both its sides.

Bilna strip 4 has a guide grooves 6 that fix its correct position i and serve at the same time as stoppers in the case of a sharp increase in pressure.

The wires from the sensors are fixed on the lattice of the mobile drum panel and attached to the current collector connected to the amplifying equipment with an oscilloscope.

Depending on the magnitude of the force, G1 arises, its between the edge of the bil movable bar and the fiber, the magnitude of the deformations of the ring holes varies;

sensor E5, which, through the amplifier and oscilloscope, shows the nature of the changes in the pressure of the shade bar on the fiber.

Before me et and: about b r with t with n and

Prispobleiiye to measure the sig of the pressure bar on the fiber in scutching machines using an electric resistance strain gauge, about the fact that, in order to measure the pressure forces directly on the working body of the machine, it is made in the form movable between the direction of yush, the balls of the strap covered by the fiber being processed and interacting with its ends with ring springs carrying wire resistance sensors and attached to the stiffener corner of the blade knife.