SU93852A1 - Length Measuring Instrument - Google Patents

Description

The scheme of a belt transmission gmekhan is well known in measuring equipment; the ism with the shaft of the shaft, suffers from a significant disadvantage. It is there that, due to the rolling of the roller, the end of the arrow attached to it describes no circular arc, la elongated: cycloid. Since the cyclideal sh, feces are difficult to make, it is replaced by an arc scale. However, such a replacement can be performed without significant error only in a small part of the curve, which reduces the size of the instrument.

The proposed instrument is aimed at completely eliminating the kinematic error of the instrument with the Lenta mechanism and, thereby, creating the possibility of increasing the limit of its measurement. For this purpose, it is proposed to reinforce a non-needle and a round uniform scale on the rolling roller. In this case, the role of the indicator is carried out by a fixed p; jacquer, nanosepNa n-a Transparent1 1 cover n) 1: boron and coinciding in direction with the trajectory of the center: shaft. Pr; this is a relational motion; A roller with a scale of 1 does not affect the reading, which is determined only by the rotational composition of this movement.

FIG. 1 shows the rear view of the device, and FIG. 2-front view.

On the roller 1 (qbHr. 1) there are tapes and tapes. tapes 2 | non | B | Ezhen in the measurement process; leins 3 is attached to the measuring pin 4 IH has moved along with it; tape 5 is for dl. tension (the entire system.

When the spindle is mixed, the roller rolls along the belt 2, the instantaneous centers of speed are located at the points corresponding to the drawing point, and the points of application are from the spindle points to the corresponding point. Gear ratio mechanism is

t-r-r

 Dg

where: R is the radius of the strelka; or the radius of divisions of the scale, r-radius 1B | alika under the tape, And r-difference of the radii of the roller under the tapes.

On a rolling roller, the roller is reinforced with a circular uniform scale of 6; the tape 3 is connected to the cable 4, the tape 5 with the spring 7, and the end of the L19NTA 2 is fixed on the core 8, which makes it possible to fix the position with the help of a screw 9 mei Tb, and: tape 2 and then install the device on the bullets. The spring 10 creates a measuring force and at the same time, OLioiioe will have a knp zero setting system. The countdown of the Provozak but non-movable Rmske // (Phn. 2).

PRIORITY

A device for measuring HAL | IN, the basis of HIH used by Anni Ne1) of a rolling roller, GO roller, sticking ribbons with one of its stunenii with the device’s cornea, and the other with a moving izler: It was due to the fact that, with the aim of expanding the measurement limits, the round uniform scale of the instrument was fixed on rolling in the alik, and as a pointer to the use of fixed risk, on the transparent lid and coinciding in direction with the axis of movement of the shaft shaft.

Ouig. i