SU561008A1 - Plate Hydromachine - Google Patents

Description

(54) PLASTIC HYDRAULIC MACHINE

The invention relates to plate hydraulic machines and can be used in heavy-duty machines and other machines. The known plate-type hydraulic machine, in which, in order to reduce the contact pressure between the distribution discs and the stator, in the plane of the junction of the discs with the stator, there are grooves in the discs into which the charging pressure is applied. 1 . The purpose of the invention is to reduce the contact pressure between the stator and the dam by introducing hydraulic unloading of parts. This is achieved by the fact that the groove in the plane of the junction of the distribution discs with the stator is connected to the low pressure cavity. The hydraulic machine can only be made around the perimeter of the high pressure cavities. This reduces the pressing force, for example, by increasing the diameter of the disk neck, which leads to a simultaneous decrease in the contact pressure between the stator and the disks, and the load on the parts connecting the cover to the housing. FIG. 1 shows the proposed hydraulic machine (section A-A of FIG. 2); in fig. 2 section bb FIG. one; in fig. 3 shows a section bb of FIG. one; in fig. 4 is a sectional view of FIG. 1; In case 1, a swinging set is mounted, consisting of a flat disk 2, a stator 3 with an internal profile layer, a disk 4, a rotor 5 and plates 6. The rotor 5 is mounted on a shaft 7 mounted on supports in the housing 1. The suction cavity 8 surrounds the pumping set and is sealed from the annular cavity 9 by the ring 10 on the outer diameter of the disk 4. From the drainage cavity 11, the cavity 8 is compacted by pressing the end surface of the disk 2 to the housing 1.

Annular nag 1tetel1 on cavity 9 ushshtyats o-t drekazh-ny hollow 1.1 ring 12 on the disk 4.

A flat DISC 2 is located on the face surface facing the rotor 5; Ring band 13: Yes, the diameter of which corresponds to the mounting angle of the slots in the rotor

5AAAAUT, 6, two diametrically razor rails 14 in sectors,

where the plates 6 are moved under the action of the profile surface of the stators inside the poi-opa 5, two notches 15, diametrically arranged in sectors where the plates are

6 vyvvigakugs IchZ rotor 5, and an annular groove 16, covering the grooves 14 n. in the cavity of the grooves 15.

The disk 4 has on the end surface facing to the rotor, the circular groove 17, whose diameter is equal to the diameter of the groove 13, which connects the holes 18 to the other end of the disk 4; two diametrically spaced CKB03HbLx notch 19. corresponding to the grooves 14 in the disk 2; two grooves 20, corresponding to the notches 15 on the disk 2 and the lateral Bijixoa to the periphery of the disk 4, and an annular groove 21, covering the groove. 19 and exit u-Yu in the cavity of the grooves 20

Hydraulic machine works as follows.

When the rotor 5 rotates, under the action of centrifugal forces, the plate 6 emerges from the slots in the rotor I pressed against the profile surface of the stator 3. The chambers between the rotor 5, the stator 3 and the plates 6 in the suction area expand and absorb the working fluid. holes in housing 1, ring 9, grooves 14 and 2O.

The chamber between the plates is transferred by a cut through the jumper on the stator profile with the maximum diameter and due to the narrowing of the rod 6 to the rotor 5 it is narrowed. The working fluid from the chambers is displaced into the grooves 14 and 19, the annular cavity 9 and through the opening in the housing 1. At the same time, the working fluid under pressure in the annular cavity 9 presses the entire pumping set to the housing 1 and through the openings 18 the groove 13 and 17 fills cavities under the passages 6. This ensures reliable clamping of the plates 6 to the c-tator 3 in the suction cavity.

The working fluid under pressure leaks out in the slots between the stator 3 and the disks 2 and 4 not further than the grooves 16 and 21. Leaks along these grooves enter the suction strip of the pump,

The area between the diameter of the groove 21 and the outer diameter of the stator is unloaded from the discharge pressure, which reduces the force exerted by the disks from the stator 3. This decrease in the pressing force allows the diameter of the neck to be increased at the same outer diameter of the stator, sealing the annular cavity 9 in the housing 1 ., to reduce the force acting on the body parts.

Due to the posting of the groove from the low-pressure cavity, the load on the parts connecting the housing to the cover is reduced, and the contact pressure is reduced between the stator and the distributor disk, which reduces the overall dimensions; gidromashyky.

Form a invention

1 Hydromachine layers, comprising a housing, a bonnet with a cover, a stator, a rotor with plates and distribute spruce disks that separate the inner cavity of the housing into a cavity of high and low pressure, one of the distribution discs having contact surfaces with a stator, a closed groove is hydraulically pressed against the stator, about 10 and so on, in order to reduce the load on the parts connecting the key to the housing, said groove is connected to the low pressure cavity of the hydraulic machine.

2. Plast-1ata hydraulic machine, p. 1, characterized in that, in order to reduce the contact pressure of the honey by the stator and the clamped disc, the flask is made only around the perimeter of the high-pressure cavities. Sources of information taken into consideration during the examination:

1, US Patent No. 3479962, 103-136, 1965,

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