SU119817A1 - A device for determining the displacement of the supports and spindles of the spindles of spinning and twisting machines - Google Patents

Description

The invention relates to devices for determining the displacement of the supports and spindles of the spindles of spinning and twisting machines, depending on the load applied to the top of the spindles.

A distinctive feature of the described device is that, in order to obtain smooth force-mixing curves, the spindle spindle is mixed with a screw and a slider driven by the motor or by an electric motor through a counter drive with a friction roller, which can be turned off help, eccentric and two shoulders, and register these movements with the help of a wire strain gauge located on an elastic beam; Measurement of the force is carried out with the help of another strain gauge, fixed on the U-shaped bracket, which is a link in the load circuit, and allows recording the force on the oscilloscope film or by switch instruments.

In a device made in another form, the loading of the spindle is carried out through a bracket and a spring-type dynamometer of the type of a manual force meter, which records the force, and the displacement is measured by an indicator.

To determine the force of displacement of the support sleeves and smooth loading of the sleeve with a dynamometer, a rigid tube was applied, which was attached to the head of the sleeve with a clamp, whereby the values of the distance and the movement of the sleeve were measured along the top of the tube.

To isolate a part of the deformation of the spindle due to the bending of its upper part or shank, a tube is put on and fixed to the upper part of the spindle, the top of which is subject to loading, and the support sleeve is fixed with screws.

FIG. 1 and 2 shows the device in two projections; in fig. 3-part instrument with strain gauges; in fig. 4 and 5-part instrument with

No. 119817

spring dynamometer and indicator in two projections; in fig. 6 - a device for determining the force and displacement of the support sleeve; in fig. 7 - a device for determining the deformation of the upper part and the shank of the spindle.

On the front wall of the frame / reinforced guide 2, made in the form of a dovetail, along which the square 3 can move in a vertical direction, carrying a nest 4 fixed in it with a spindle 5 spindle.

At the top of the bed, the headstock 6 is reinforced, inside which the slide 7 is moved. The slide 8 is moved by the screw 8, which is driven in rotation by the pulley 9 either by hand using the handle 10 or by the electric motor 11 by means of a flexible transmission onto the pulley 12 and from the pulley

13 by means of the friction roller 14 pressed against the pulley 9 by the spring 15.

To disconnect the transmission from the motor friction roller

14 is mounted on the end of the two shoulders lever 16, on the other end of which the finger 17 is fastened, which interacts with the eccentric 18 which is turned by hand.

The spindle 5 of the spindle can be rotated by the same electric motor // using a cord 19.

At the end of the slider 7, the U-shaped bracket 20 is pivotally attached, connected by means of a flexible cord 2 to the upper end of the spindle 5 of the spindle. The cord 21 may cover the upper end of the spindle either directly or through a block (not shown) mounted on the end of the spindle head. A wire gauge 22, connected by an electric circuit with an oscilloscope or a pointer instrument (not shown in the drawing), is attached to the bracket 20 to register the forces arising at the spindle end. To register the movements of the spindle end, a probe is used, made in the form of an elastic beam 23 mounted on two supports in the slider 24 and resting against the upper end of the spindle 5. The slider 24 with the beam 23 is set with respect to the spindle by means of a screw 25.

A wire sensor 26 is located on the beam 23 and is also connected by an electric circuit with an oscilloscope and a pointer device (not shown) for registering spindle shuffles.

Instead of a bracket 20 with a sensor 22 at the end of the slider 7, a conventional spring dynamometer 27 with a pointer force indicator can be fixed, which loads the spindle 5 by means of a bracket 28 attached to the dynamometer 27 and a flexible cord 21, and instead of a beam 23 with a sensor 26 on the slider 24 A conventional indicator 29 can be installed to register the movements of the spindle end.

To remove the characteristics of the spindle hub 30 itself, a rigid tube 31 is put on the hub head and secured to it with a clamp 32.

When removing the characteristics of the spindle spindle, the sleeve is rigidly fixed in the socket 4 with screws 33, and to isolate part of the deformation of the spindle due to the bending of its upper part or shank, put the tube 34 on the upper part of the spindle and fix it with a clip 35.

The operation on the instrument is as follows.

The slot 4 with the spindle 5 is fixed in the square 3, which is set so that the upper end of the spindle is at the level of the staple 20. The flexible cord 21 is placed on the end of the spindle 5, or on the end of the tube 31 or tube 34. Install the slider 24 by means of the screw 25 so that the beam 23, touching the upper part of the spindle 5 (or tubes 31 and 34), has a certain initial deformation, greater than the possible displacement of the spindle end under test.

The motor // is turned on or the pulley 9 is rotated by hand with the help of the handle 10. The slider 7, moving, loads the bracket 20 and, through the cord 21, transmits the force to the end of the pinch 5. In this case, the resistance of the wire sensor 22 changes, which is registered with a pointer device or recorded oscilloscope on film.

At the same time, when the spindle spindle deviates, the deformation of the beam 23 and the resistance of the sensor 26, which is recorded by the indicated instruments, change.

In the case of the use of the spring dynamometer 27 and the indicator 25, the forces and movements are recorded directly by these devices.

Subject invention

Claims (4)

1. An instrument for determining the displacement of the supports and the spindle of the spindles of the spinning and twisting machines depending on the load applied to the top of the spindle, characterized in that, in order to obtain smooth force-displacement curves, the spindle spindle is moved with the help of a screw and a slider, movement from the hand or from the electric motor through a counter drive with a friction roller that can be switched off with the help of an eccentric and two shoulders lever, and these movements are recorded with the help of a wire strain gauge located on an elastic beam, e the force accomplished via Another strain gauge mounted on a U-shaped bracket, which is a link in the load circuit, and allows you to record the force on an oscilloscope film or on switch instruments. 2. A device change according to claim 1, characterized in that the load of the pinch is carried out through a bracket and a spring dynamometer such as a hand force meter that records the force, and the movement is measured by an indicator. 3. Device on PP. 1, 2, characterized in that, in order to determine the force of displacement of the support sleeves and smooth loading of the sleeve with a dynamometer, a rigid tube is applied that is worn on the sleeve head and secured with a clip, wherein the measurement of the force and displacement of the sleeve is performed on the top of the tube. 4. Device on PP. 1-3, characterized in that, in order to determine the stiffness of the spindle and release a part of the deformation due to the bending of the upper part of the spindle or shank, a tube is attached to the upper part of the spindle and the supporting sleeve is fixed screws. PRINTS  ff 720Zi 2 4- {FIG. Z