CS250779B1 - Mechanism for transmitting the signal from the rotating part to a fixed number of revolutions - Google Patents

Abstract

The purpose of the solution is to remove sliding contacts from the signal path and thus prevent signal interference by contact noise. This is achieved by winding the working conductor (6j into the gap between the cylinder (1) and the drum (2), while the winding is closed by a fixed pin (3) and a rotating pin (4). The direction of winding is changed by means of a ring (5). During the rotation of the rotating pin (4) relative to the fixed pin (3j, the conductor is always wound onto the cylinder (1) in one part and unwound and pressed against the drum (2) in the other, while the ring (5) ensures a tight fit of the turns. The maximum number of turns is equal to twice the number of turns of the conductor. Other uses are in the field of connection technology, in the transmission of electrical and optical signals, in the transmission of flammable or gaseous media, in machine tools, etc.

Description

The invention relates to a mechanism for direct transmission of an electrical signal from a rotating part of a device to a fixed, limited number of revolutions of a rotating part, such that the working conductor is wound on a rotating roller, the winding sense being changed by a ring and closed.

The problem of transmitting electrical signals from rotating parts is solved either by using sliding contacts or by winding a loosely laid lead-in conductor onto the rotating part. In the first case, there are difficulties in transmitting very weak signals when the actual contact noise and external interference signals are applied. High demands on the design of the sliding contacts are also present when carrying large currents. Here, the limiting factor is the contact resistance of the contacts. If the transmission is solved by a winding wire, there are problems with storing the unwound wire; at a higher number of revolutions, the required length of the wire results in an unbearable large.

The iP-paragraph of the proposed solution consists in that the mechanism consists of a cylinder, a fixed pin and a pivot pin, a finger, a rotary drum and a wire such that the wire is fixed in the pivot pin and fixed pin, wound on the roller through the ring and . In order to allow the mechanism to function properly, the cylinder, drum and ring must be rotatable relative to both pins and to each other.

In particular, the advantages of the mechanism of the present invention are that the useful signal does not pass through the sliding contacts, thereby eliminating the possibility of interference with the contact noise, saving the material used to make the contacts. If such a mechanism is used instead of an arrangement in which a loosely laid conductor is wound on a rotating cylinder, there are no problems with the deposition of the unwound conductor. In addition, the required wire length for the proposed solution is about half.

The uepoiriadainie mechanism is shown in the attached figures. Fig. 1 shows a cross-section through the mechanism without the conductor drawn. The roller 1 and the drum 2 have the possibility of rotation relative to the fixed pin 3 and to the pivot pin 4. In the gap between the roller 1 and the drum 2 there is a freely movable ring 5 shown in FIG. 3. In FIG. 2 shows the manner of winding the conductor 6. This extends through the axis of the pivot pin 4, where it is fixed and extends on ¹ circumference of the pivot in an oblique direction.

Further, it is wound on the roll 1, the winding sense being changed by the ring 5. The second k-one conductor passes through the fixed pin 3, where it is fixed in the same way as in the pivot pin 4. After winding the conductor, the entire assembly is enclosed in the drum 2 .

If the pivot 4 starts to rotate, e.g. This cylinder will rotate together with the pivot pin 4, since the shrinkage of the conductor 6 will be tightened around this part. Therefore, there will be no friction between the winding conductor 6 and the drum 2. During winding, the conductor 6 passes through a slot in the ring 5, which changes the sense of its winding.

In the part above the ring 5, the conductor 6 unwinds, its threads here trying to expand and press against the drum 2, which does not allow the threads to disintegrate. The ring 5 rotates at half speed relative to the pivot pin 4 and at the same time moves toward the fixed pin 3. The drum 2 is now not rotated relative to the fixed pin 3. If the pivot 4 rotates to the right, the ratios will be reversed.

The threads in the lower part between the ring 5 and the pivot pin 4 will tend to unfold, preventing them from the drum 2. This will (in this case, rotate with the pin 4 and the bottom of the threads. The threads above the ring 5 will now tighten around The space between the roller 1 and the drum 2 must be selected so as to accommodate the necessary number of windings tightly wound on the roller 1 through the ring 5, leaving between the conductor surface and the drum 2 some gap needed for the mechanism to function properly.

The required number of conductor turns is about half the number of revolutions that the pivot pin 4 has to perform. The working conductor 6 can have any number of cores. Its outer shell must have a circular cross-section.

In addition to the aforementioned application, i. j. The proposed mechanism can also be used for the transmission of optical signals, if the electric conductor is replaced by a fiber-optic cable. of gaseous media to the reading part.

Claims (1)

SUBJECT Mechanism for transmitting a signal from a rotating part to a fixed number of revolutions consisting of a cylinder, a fixed pin, a pivot pin, a ring, a drum and a conductor, characterized in that the conductor (6j is fixed in the pivot pin (4) and in a fixed YNALEZ pin (3) and is wound on a roller (1) through a ring (5) and closed by a drum (2), wherein the roller (1j, drum (21 and ring (5J) is pivotally mounted relative to the fixed pin (3) and pivot pin (4) and with respect to each other, 1 sheet of drawings 250779 of FIG zwzz / l i 1 i li -— ------------------------- - * Z i r- - I both # 1 Fig. 2