SU657282A1 - Torque meter - Google Patents

Description

one

The invention relates to a measurement technique and can be used to measure the steepness of torque of a shaft.

A known optical torsional diameter containing a shaft, a light source, discs with slots fixed rigidly at a certain distance from each other on the shaft, which, when twisted under the action of a torque, changes the position along the disk radius of the visible light point, has large radial dimensions and insufficient measurement accuracy, 1.

The closest technical inventiveness to the invention is a torque meter containing a main shaft, concentrically to which a gripping shaft, a light source, a recording device and reflecting mirrors mounted on the shafts of the TKV light sources and a recording device are installed.

A disadvantage of the known torque meter is the impossibility of measuring the torque on shafts rotating at different speeds.

The purpose of the invention is to measure the cool of the torque on shafts rotating at different speeds.

This is due to the fact that, in the proposed meter, there are holes in the enveloping shaft located opposite the light sources and a recording device, the reflecting mirrors being made with variable angles of the surface normal to the forming shafts, and the light sources are monochromatic with different wavelengths.

Claims (2)

Fig. 1 shows the torque meter described here}. 2 - the same, cross section on fvg. 3 axonometric projection of the shaft with mirrors; "FIG. 4 is a top view of a portion of the main shaft when the reflecting mirror with a variable angle of the normal 36 has the shape of a cone, sphere, cylinder; in fig. 5 - the path of the ray & n on the surface of the ox, when the reflecting mirror has the shape of an oblique plane. The torque meter of the main shaft 1 and the gripping shaft 2, rotating with different peripheral speeds and transmitting different torques, contains reflecting mirrors 3 and 4 on the right ends of the shafts, refracting parallel luchs of light from the intersection of light 5 and 6 along reflecting shafts 1 and 2. Reflecting mirrors 7 are installed on the left ends of the shafts and in the normal angle of the surface normal in the circumferential direction to the forming shafts 1 and 2. For passage of the rays to the main shaft 1, windows are formed in the shaft / 2. 9 and 1O, Reflected rays from the reflecting mirrors 7 and 8 fall on the recording device 11 with a scale of 12 located parallel to the axis of the shafts; The recording device 11 can be made in the form of a field, photocells included in an electrical circuit of an automated recording equipment that converts light signals into digital information. It is possible for these purposes to use it in the form of fiber optics fiber beam sections, especially when using reflecting mirrors spherical or cylindrical Forms,: when a screen appears on a screen that is different from a straight line. Having the fiber bundles in accordance with the shape received by the signal, it is possible to transform it to a shape convenient to ., - ,, g. „DLI IoMvrsppl FIG. 2 shows the placement of the reflecting mirrors 7 and 8 fixed on the shafts 1 and 2 in the circumferential direction. Their number is chosen by a multiple number of holes 9, Yu in the sheeting shaft and depending on the ratios of the angular velocities of rotation of the shafts Ou and UJg and the torques M kp and, accordingly, shafts 1 to 2, Reflecting mirrors 7 and 8 can be made on a common shaft element, type gears, wheels. The light beam from the reflecting mirror 4 (c, fig, 3) deviates parallel to the generator shaft and, under the action of the moment, hits a part of the reflecting mirror 8 that has an angle of inclination to the generator shaft p, and when the moment changes by some amount, the shaft I is twisted by angle and it will reflect the / M part of the reflecting mirror 8, having an angle of inclination to the generator of the shaft. This corresponds to a new light point on the recording device 11, indicated. The distance between the points of the screen corresponding to the values of M CPU. and m1, p. equal to the DC, is directly proportional to the twist angle of the shaft 1-Ao (and, therefore, to the increment of the actual torque: Fig. 4 shows the ray path on the dimensional section of the shaft 1 when the body of rotation like a cylinder is used as a reflecting mirror 8, Applying the body of rotation like a cylinder, it is necessary to coordinate the placement of the corresponding holes 9 and Yu on the female shaft. In Fig. 5, a surface of the type of an oblique plane — a ruled surface formed by the movement of a single plane — is shown as a reflecting mirror 8. My two other crossing straight lines. In this case, holes 9 and 1O can be made on the same forming spanning shaft 2. Before starting work on rotating shafts 1 and 2, the optical system is calibrated and tuned by applying a reference to these shafts. reference load: torques, achieved by adjusting elements, for example, on a reflecting mirror 4 identities, showing reflecting mirrors 7 and 8 by successively turning both wah while shafts 1 and 2 are parallel rays of light from sources of light and 5 and 6 fall on the reflecting mirrors 3 and 4 and, reflecting from them along the axis of the shafts, fall on the reflecting mirrors 7 and 8. Under the action of the torques, shafts 1 and 2 will twist on the bases between the reflecting mirrors 3 and 7 and 4 and 8 Depending on this, the rays of the light sources 5 and 6 will arrive at different points of the recording device 11. To identify the belonging of the beams falling on the recording device 11, one or the other of the twisted shafts from the light sources 5 and 6 must be directed be monochromatic rays of light with different lengths of vpn, for example, yellow and blue spectra. In this case, the recording device 11 of the torque meter must contain elements recognizing these signals. Claims The torque meter, comprising a main shaft, concentric of which is fitted with a gripping shaft, light sources, a recording device and reflecting mirrors mounted on shafts opposite the light sources and registering a device, characterized in that it measures torque shafts, rotating with different speeds, in it there are holes in the grasping shaft opposite the light sources and the recording device, and the reflecting mirrors are made with mennymi angles to the surface normal obrazu1oschim shafts and made monochromatic light sources with different wavelengths. Sources of information taken into account during the examination 1. England patent N9 1О96606, cl. 3 1A, 1964. 2. USSR author's certificate number 8766, cl. GI 01 U 1/24, 1928. Y //////////////// 7 /////////////////////////////// ///////// 7 // UHH //// X // X /////// X /////// XX / // X /// ХХХ / XX / / X / U //////// x / X / XX / XXX /// y  S - year, 2 I ai l at eight d.2 ag.Z j 77 k w I I I I I I I / g. U25