SU1737589A1 - Current-collecting device - Google Patents

Abstract

Use: electric machine 2 structure and is designed to transmit electrical signals from a stationary object to a rotating at high frequencies of rotation. SUMMARY OF THE INVENTION: The device comprises current-transmitting angular-contact bearings installed in the housing and on the shaft, a movable device, and elements of the electrical power supply. The current lead elements are made in the form of flat current-carrying and current-conducting rings in contact with bearing rings separated by elastic insulating gaskets, and in a mobile device there are a number of inclined holes with elastic inserts installed in them. 2 hp y-ly, 3 Il. about $ (L S

Description

The equipment relates to electrical engineering, in particular to devices for current collection, and can be used to supply current to rotating consumers.

Current collectors are known to include roller bearings, a pressure device and insulating gaskets with contact washers.

These devices, however, have a complex structure, large landing dimensions and insufficiently high rotational frequencies due to low dynamic characteristics due to the location of the spring on the shaft.

Current collectors are known to include roller bearings, a pressure device and insulating gaskets with current-carrying and current-collecting elements.

The disadvantages of these devices are low rotational speed (due to the bearing installation) and large axial dimensions.

The closest in technical essence is a collector device comprising a housing in which (mounted shaft on current transmitting radial-thrust bearings, spring-loaded along the axis of the shaft, elements of current input and output terminal, external current-carrying rings separated by insulating gaskets as well as internal lead rings.

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The disadvantages of it are narrow scope and low reliability. This is due to the low dynamic properties of the movable spring mounted on the shaft, as well as the high power loss of the hydraulic friction of the rotating elements. In addition, the design of the prototype is low-tech, since it has a complex assembly, especially if the number of current collection lines is more than two.

The aim of the invention is to improve the reliability, manufacturability, as well as the expansion of the field of application of the collector device.

This is achieved by the fact that the device is equipped with flat elastic insulating gaskets installed between the ends of the adjacent outer and inner bearing rings, provided with additional rigid insulating gaskets installed between adjacent internal current-removing rings, and the casing is made of two parts rigidly connected to each other .

The implementation of the device with flat elastic insulating gaskets makes it possible to compensate for the errors in the manufacture and installation of the current-transmitting angular contact bearings and to ensure an even distribution of the preliminary tension between the bearings.

The implementation of the two-piece body allows reliable elastic pressing of the set of current-transmitting angular contact bearings with high dynamic characteristics ensuring constant contact of the bodies and raceways of the angular contact bearings in terms of vibration.

The use of additional rigid insulating gaskets installed between the lead rings allows the design to be made more technological. This is due to the fact that internal rings and alternate additional insulating gaskets, which are glued together with glue, are alternately mounted on the shaft and then bore together as a whole.

FIG. 1 shows a general view of the incision device; at aig. 2 is a section A-L in FIG. one; in fig. 3 - an embodiment for the case of applying heavy prestresses

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The current collector device comprises i case 1 and shaft 2, between which current-transmitting radial-thrust bearings 3, 4 are mounted, fixed to one of the parts of case 5. At the end of one of the parts of the case there are inclined holes 6 in which elastic inserts 7 are made of dielectric material. Between the radial-thrust bearings 3, 4 there are installed flat elastic insulating i. gaskets B, 9. The elements of the electrical power supply are made in the form of external current-carrying 10 and internal current-carrying 11 rings separated by rigid insulating gaskets 12, 13.

Internal discharge rings 11 have current leads 14, made in the form of screws, from which current is supplied to the consumer through cable 15.

The current leads 14 are closed by a lid 16 installed with a radial clearance relative to the cup 17. A pin 19 and a coupling 20 serve to transmit torque to the reference signal generator 18. The device is mounted in the case 21,

The mutual arrangement of the pin 19 and the shank of the coupling 22 entering the slot-hole 23 of the cover 16, see fig. 2.

FIG. 3 shows one of the parts of the housing 5, made in the form of a nut with radial grooves 24.

The device works as follows. The current is supplied through the current leads to the external current-carrying rings 10, passes through the current-transmitting radial-thrust bearings 3, 4, the internal current-carrying rings 11 and flows to the current terminals 14, from where it is sent to the consumer through the cable 15.

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Angle information signal

the position of the shaft 2 is transmitted by the generator 18 of the reference signal from the cover 16 through the coupling 20. The cover 16 is able to self-aligning with the shank of the coupling 22, moving in the radial direction along the axis of the splint 19. In turn, the shank of the coupling 22 also self-aligning with respect to the cover 16 in the direction perpendicular to the axis of the pin 19, freely moving along the chip hole 23, since its length exceeds the length of the coupling shank.

In order to ensure minimum heat generation in angular contact bearings 3, 4, one of the parts of the housing 5, as well as flat elastic insulating gaskets 8, 9, creates an optimal preliminary tension of the current transmitting radial-resistant subtypes JQ insulating gaskets installed by 3 4. Compensation of their wear is carried out due to preliminary {wear of elastic inserts 7 installed in inclined holes b.

external current supply rings separated by insulating gaskets, as well as internal current rings, characterized in that, in order to improve reliability, processability, and expand the field of application, it is provided with flat, elasticized between the ends of the adjacent outer and The inner rings of the bearings are mounted in an X-shaped pattern; in addition, it is equipped to create a heavy preliminary. additional rigid insulating

One of the parts of the housing 5, made in the form of a nut, can be used. The radial grooves 24 made on it, displaced relative to each other by the angular pitch, ensure its elastic properties, increase the accuracy of the baeiration of the current-transmitting angular contact bearings 3, 4 and prevent the nut from self-unscrewing.

Thus, the use of the proposed device allows to increase the reliability, manufacturability, as well as expand the field of application of the collector.

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Claims (3)

1. A current collection device, comprising a housing in which a shaft is installed, on which current-carrying $ 3 radial-thrust bearings are placed, pressed along the axis of the shaft, elements with top plates installed between adjacent internal current-collecting rings, and the housing is made in two parts, rigidly connected to each other. 2. The device according to claim 1, I distinguish it with the fact that, at the end of one of the body parts, holes are inclined to the end face, in which additional elastic inserts of dielectric material are installed, protruding beyond the end of this part of the body and interacting with the extreme outer ring of the current transmitting bearing. 3. The device according to claim 1, characterized in that one of the parts of the body is made in the form of a nut connected to the other part of the body by means of a thread in which radial grooves alternate in a checkerboard pattern along the circumference. mi insulating gaskets installed the outer and current leads, separated by insulating gaskets, as well as the internal discharge rings, characterized in that, in order to increase reliability, processability, and expand the field of application, it is provided with flat elastic five 0 $ spacers installed between adjacent internal lead rings, and the body is made in two parts, rigidly connected to each other. 2. The device according to claim 1, I distinguish it with the fact that, at the end of one of the body parts, holes are inclined to the end face, in which additional elastic inserts of dielectric material are installed, protruding beyond the end of this part of the body and interacting with the extreme outer ring of the current transmitting bearing. 3. The device according to claim 1, characterized in that one of the parts of the body is made in the form of a nut connected to the other part of the body by means of a thread in which radial grooves alternate in a checkerboard pattern along the circumference. 1737589 79 1617 3 70 P 8 MLV .Fig2 Editor L. Narodna Compiled by A. Kushnir Tehred M. Morgenta 3 Proofreader S. Shekmar