SU661692A1 - Pulsed multidisk homopolar generator - Google Patents

Description

 The magnetic system has a large internal diameter necessary to accommodate all these devices. This increases generator weight and power loss. 2. Non-identity of current pulses. Due to the non-simultaneity of er batyvany pulsed contacts. This is due to the influence of random factors (for example, with different heating of the driving devices of the contact management system, the presence and pumping of lubrication, the state of the rubbing surfaces, etc. 5, as well as the non-uniformity of the mechanical characteristics of devices - due to inaccuracies inherent in the technology of their manufacture. 3. Reduced reliability of the generator. This is due to the fact that each impulse contact is driven from its drive. In addition, the generator uses a lot of elastic partitions or bellows, section This means that they pass through this perimeter and cannot be firmly connected to the pulsed contact displacers under assembly conditions. The aim of the invention is to reduce weight, improve energy performance and reliability. For this, the generator is equipped with pushers located along the periphery of the stator block coaxially with the rigidly connected through intermediate elements, for example, through bars attached to the pushers with the terminals of the peripheral impulse contacts and kinematically with the drive part of the system: contact management,. Such is the interrelation between the elements of impulse contacts and their system. control allows positioning the actuator of the SA contact system with the plane of the stator block, arranging the pushers and connecting rods of peripheral impulse contacts connected to them through intermediate elements inside the sealing rings in the airtight cavity of the stator block, making a gesture 1: parts of impulse contacts (for example, with liquid metal propellants. It should be noted that the proposed design is applicable in brushes Figure 2 shows the generator sectional view through an axial plane; Figure 2 shows the interrelation of generator elements located in the sealed cavity of the stator unit (view from the axis). The proposed generator contains a cryogenic excitation system 1, disk rotors 2 installed into bearings 3 and connected (FRIEND to the other by couplings 4 transmitting torque. The disks 2 are electrically insulated from each other, from the stator and from the drive (for this place under the bearings, and also the couplings 4 are electrically insulated, for example, with an oxide film). The disks are combined by the stator into a block having electrodes 5 and 6, connecting buses 7 and 8, as well as parts of housing 9 (the thick lines indicate the location of the electrical insulation). Electrodes 5 and 6 form xeller contact gaps 10 (internal contacts) and 11 (peripheral contacts) with corresponding disk surfaces. The peripheral contacts 11 are pulsed, containing complaints 12 for the liquid metal and displacers 13, which can move up and down along the guide surfaces in the grooves. The displacers 13 are rigidly connected to the rods 14 (Fig. 2), which are installed in the guiding surfaces of the grooves and exit into the cavity 15 of the tires 8 through the openings in them. The rods 14 are connected to the bars 16 by means of adjusting rings and clamps (rings and clamps are not shown), which allow the displacers to be installed at the correct height in the grooves when assembling the generator. Two can be connected to each bar 16. rod 14 (FIG. 2) or more rods. In order to reduce the axial size of the block, rods can be attached directly from two adjacent impulse contacts to each transversely mounted bar 16. The bars 16 are rigidly connected to axially located pushers 17. The pushers 17 pass through the holes in the connecting tires 8 and the electrodes 6 through the block parallel to the generator and exit through the upper end of the block. The tightness of the cavity of the block is provided as follows. The bellows 18 seals the outlets of the pushers 17 from the block. Pushers in bellows are strengthened using electrically insulated tips 19. Ring rubber gaskets 20 seal the joints with electrodes 6. and connecting tires 8. Electro-insulated spring 21 connecting the rotor of the generator with the drive turbine is sealed with cuffs 22. Between the compressor 21 and the turbine can be installed slip clutch (turbine and slip clutch are not shown in the figures). The cavities 15 in the tires 8 are closed by covers 23 with gaskets 24. Thus, the terminals of the impulse contacts 14, the bars 16 and the pushers 17 are inside the sealing rings 20 in the hermetic cavity of the block. To prevent electrical closure between the electrodes

By birth, the surface of the pushers 17 and the bars 16 is electrically insulated with an oxide film or a layer of fluoroplast. In order to prevent liquid metal from entering the vertical channels in which the rods 17 are located, gaskets 25 are provided. For the same purpose, seals are installed in the openings of the tires 8 through which the rods 14 pass from the grooves 12 in the cavity 15 (in the drawings, these holes and seals are not visible). Behind the end plane of the block there is a drive 26 of the contact management system. Drive can be any. In Fig. 1, the actuator 26 contains a high-torque electric motor 27 (for example, an engine with a rolling rotor), a worm gear 28 and a spring mechanism 29. The actuator 26 is kinematically connected to the pushers 17 via an asterisk 30 and tips 19. The asterisk is pressed in the middle part to the movable part of the spring mechanism 29, and the rays of the sprocket are attached to the tips 19 of the pushers 17 and rigidly connect them to each other. At the bottom of the sprocket 30 there is a return spring 31. On the side of the block are compensation tires 32, which are connected to the upper part of the block and electrically insulated from the rest of the generator. External tires are connected to flanges 33 and 34.

The rotor of each unit can be driven into rotation by two turbines located below and above the unit. In this case, the connection of the followers 17 with the actuator 26 of the contact management system must be made differently. For example, in the sprocket 30, there may be an oTBepcTfSe for mounting the turbine, and the drive device 26 of the contact management system may be located above the turbine. In other embodiments, the actuator 26 of the contact management system may be installed at the bottom of the unit or at the side of the axis. If the generator has a ferromagnetic frame structure (as in the prototype) or armor structure, then the pushers 17 exit the stator unit through the magnetic circuit adjacent to the end of the unit, or pass near it. The drive 26 of the contact management system is located above the magnetic conductor.

Generator works as follows & zm.

Turbine - rotates the disc rotors to maximum speed. Solenoid 1 creates an axial magnetic field. The displacers 13 are in the upper position (as shown in Fig. 1). At mechanism 29, the spring is compressed. Internal contacts 10 are closed,. When the engine 27 is turned on, the cam mechanism 29 rotates and releases the spring. Spring

abruptly moves down a system consisting of asterisk 30, tip 19, pushers 17, bars 16, rods 14 and displacers 13. Displacers 13 eject liquid metal from trenches 12 in the form of jets through the nozzles in them, which shortly close the electrical circuit (then the liquid metal is returned by gravity to the chute 12). A current pulse passes through the load, while the disks 2 are braking the vehicle.

10 The kinematic energy of the turbine rotor is quenched either in an elastic spring 21 or in a slip clutch (the clutch is not shown in the figures). After the break of the electric circuit, the disc rotors begin to unwind again with the turbine. The motor 27 by means of a worm gear 28 rotates the cam mechanism 29 and compresses the spring of this mechanism.

0 The return spring 31 lifts the displacers 13 and all elements connecting them with the drive 26 to the upper position. When the spring is compressed, the motor 27 stops.

5 The generator has returned to its original operating state and is ready to generate the next current pulse.

Technical and economic efficiency of the proposal consists in increasing the energy performance of the generator, reducing its mass and increasing reliability. This is achieved thanks to the rational mutual arrangement and interconnection of the elemenites.

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The generator. The generator design becomes more compact. The excitation system is as close as possible to the rotor, so the dispersion of the magnetic field decreases. The proposed design provides a rigid connection.

0 moving parts of impulse contacts with each other, which improves the switching characteristics of the generator and increases its reliability. In addition, the arrangement of axial pushers with cross-bars mounted across and bars of impulse contacts in a sealed cavity also increases the reliability of the generator. This also contributes to reducing the number

0 bellows, and their placement beyond the end plane of the block allows one to install bellows of sufficient length with a small relative deformation.

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Claims (3)

1.Bertinov L.I., Aliyevsky V.L. Troitsky S.R. Unipolar electrical machines with a liquid-metal current collection, Moscow-Leningrad, 1966, p.13. 2. USSR author's certificate №187131, cl. 21 a, 5, 1964. 3. USSR author's certificate No. 481969, cl. H 02 K 31/00, 1973. II I I II 3 Bz: