SU955153A1 - Shaft rotation angle to code converter - Google Patents

Description

one

The invention relates to automatic measurement control and can be used in devices for converting angular values to a digital code.

The known converter of the angle of rotation of the shaft into a code containing coding elements of readings made in the form of two magnetic conductors, between which the reading elements are located, the coding elements being connected to each other and to the shaft through mechanical gears 1.

The disadvantages of the converter are the low reliability of its operation and the complexity of the assembly.

The known converter of the angle of rotation of the shaft into a code that contains in each sample the coding elements of the magnetic cores and the constant ring magnet and sensitive elements located in the gaps of the coding elements interconnected to the shaft and mechanical gears 2.

The disadvantages of the converter are low reliability of operation and complexity of its assembly.

The purpose of the invention is to improve the reliability and simplify the converter angle of rotation of the shaft in the code.

The goal is achieved by the fact that in a converter containing coding elements of samples, connected to each other and to a shaft, through mechanical transmissions and made in the form of magnetic circuits with a permanent magnet, between which are located reading elements,

The Q coding element of each reference is made in the form of one semiring U-shaped magnetic core with a permanent magnet consisting of two identical half-rings with axial magnetization installed opposite one another on the inner sides of the magnetic circuit.

The driven and leading shchestorn of each mechanical transmission are integrated with the sleeve and are made with it as a whole, the outer surface of the sleeve has a half-ring2Q groove in which the coding element of the corresponding reference is installed.

FIG. 1 shows a converter of the angle of rotation of the shaft into a code, a general view; in fig. 2 is a coding element of a single reference transducer installed in 3V w, mechanical transmission locks; in fig. 3Price:, den;) 1 example of installation of reading elements; Note the countdown and the table on the code.

The transformation of the angle of rotation of the shaft into a code contains sleeve 1, driven and driven gears 2 (made in each count as one unit) and tribes 3 forming mechanical transmissions, semi-circular magnetic cores 4 of U-shaped section and H-shaped ring magnets 5 forming coding elements that read elements 6, shaft 7.

The coding element of each reference (Fig. 2, 3) contains two sections: active ("1) and passive (" O), and since it contains: - ;. The elements 6 (Fig. 1) are located at the same angle in the semicircle. distances from each other so that each section is conventionally divided into p quanta, the number of elements b in each count is p 1, and the gear ratio between the mechanical transmission between readings (scale and scale) is M 2/2.

The device works as follows.

When o (- O coding elemengs formed by magnetic core 4 and magnetism 5, all samples are in a position where their active sections do not contain reading elements 6, which corresponds to zero signals at their outputs. When the coding element is turned on relative to the fixed reading elements 6 (Fig. 3) in the direction indicated by the arrow, combinations of signals "1 and" O appear in the direction of the arrow according to the quasireflex code table. The eighth bit is read in the next reading, i.e., when turning at angle o t 180 ° tribe 3 rotates the intermediate reading coding element by the angle сХ, the induction of the working gap of which changes the states of the reading elements b, and the corresponding code combination appears at the output of the transducer. Switches in each successive sample will occur through every 180 ° of the input angle, which induces induction on the reading elements 6 in various combinations of all samples.

The economic effect of the use of the invention is due to its technical features, given above.

Claims (2)

1. The transducer of the angle of rotation of the shaft into a code containing the coding elements OTC4eT (; ii, interconnected and with wah.pom through mechanical gears and made by the F5 p. md cable carts with constant mag; it (; m, between which ras (reads are attached, which is characterized by the fact that, in order to increase the hop .; In it I encode Plum; / 1 element of each; the reference is made in:; de; one half-magnetic U-shaped magnetic field with a constant magkig, SOSTYAASH.IM from two identical half-rings with axial magnetization, set to 5 on the inner cores of the magnetic circuit. 2. A fiber former according to claim 1, wherein 10M is different, in order to simplify the conversion of 1E; , the driven and leading gears of each mechanical transmission are integrated with the sleeve and are made with it as a whole, 1 the outer surface of the sleeve has a semi-circular groove in which the coding element of the corresponding reference is installed. Sources of information taken into account during the examination 1. L. Shulgin and lr. Magnetically-modulated converters of the shaft of the pivorot shaft into the code. 1968, p. 33. - 2. USSR author's certificate 0 No. 756452, cl. G 08 C 9 / gy, 19 / i -type).