SU1421894A1 - Piston group of axial-plunger hydraulic machine - Google Patents

Abstract

The invention allows to increase the durability and simplify the design) o6 | capacious pump. Spherical head 2 n / p nzhara I im from the axis. yu and distribution channels 4 connected to each other. On the head 2, a larva with a hydrostatic onor 6 is installed. The support 6 is matched with an inclined disk 7 and contains peripheral ports. working chambers 8, 9 with the possibility of communication with the control panel and distributor, cap 4. The chamber 9 is permanently connected with the axial channel, or with the channel 4. The internal control of the form 11I.: 1ipd1) of the icy cup, nmekmtse1 li) of the hny part and in the central part of the hip dpf (rpchesk1 nonsrposgp k), I. / / if-1/2 (/ so.ch(mk, where // height is wa. 1u.e.ugo according to the bank: il dpamstre heads 2; pv-i.Ki - .makspma.chnp yro.i paraklopa axis the plunger I relate 1e, flax to the axis 6ani- maka. Lubrication of the pipe 1 | with iiapiii ocynic- with is a liquid, a constant flow in the pocket 12, communicating it with the chamber 8 allows you to constantly drain the liquid, i.e. wash the Hiapunpnoe compound. I H.P. (1-1. , 2 and 1. o (L 4 N3 oo co 4

Description

The invention ranges from positive displacement pumps, in particular to axial-plunger hydraulic machines with free-supported pistons.

The purpose of the invention is to increase durability and simplify the design.

FIG. 1 shows a piston group, a general view; in fig. 2 - the same, with the maximum deviation of the swash plate.

The 1-st group of axial-plunger hydro-magnetic consists of a plunger 1 with a spherical head 2, having an axial 3 and distribution channels 4, interconnected, on which P1 is hinged ycTaiioB. Ie baq.mak 5 with a hydrostatic support 6, conjugated with an inclined disk.m 7 and containing peripheral 8 and central 9 working chambers with the possibility of communicating with channels 3 and 4, with the central working chamber 9 communicating permanently or with axial channel 3, or with one of the distribution channels 4. The inner surface of the shoe 5 is made in the form of a cylindrical glass having spherical surfaces 10 and 11 in the upper and central parts of the bottom, mating with the spherical head 2 of the plunger I. The spherical surface 10 is formed by a pu calendering eat, and spherical surface

1 1 by machining. Between

The surface 10 of the spherical head 2 and the internal surfaces of the base 5 are formed by an annular pocket 12, which is cooler with peripheral working chambers 8 and has the possibility of communication with the axial 3 and distribution 4 channels.

The height of the cilipipe surface of the shoe is made equal to

 + sol-rmm

where h d

PV, K, poppy plunger.

The porpnea group of axial-plunger hydromapi type works as follows.

If there is an angle (3 inclinations of the swash plate 7 when reciprocating the piston group, pressure is created at the outlet of the pump (in the case of a hydraulic maneuver - hydraulic pump) or pressure is applied from the side of the plunger 1 (in the case of ina - 1 idromotor). This fluid under pressure comes from the end cavity of the plunger 1 in the axial 3 and distribution 4 channels. P) n

height of the wafer at the sa shoe;

diameter of the spherical head of the plunger;

the maximum angle of inclination of the axis is single-axis 6ain

0

five

0

five

0

five

0

five

0

This fluid flows through the axial channel 3 into the central working chamber 9, the hydrostatic support 6 ascends on the film of working fluid above the working surface of the swash plate 7. If there is an angle (5, liquid flows through the distribution channels 4 into the annular pocket 12 and from there into peripheral workers chambers 8, creating a film of working fluid with the central working chamber 9. At p close to maximal, the flow of liquid into the working chamber 9 is carried out through the distributor channel 4, and in the annular Arman 12 - with the help of axial channel 3. Lubrication of the rubbing pair is carried out with a fluid that is constantly in the annular pocket 12, and communicating it with an irriperium 1) working chambers 8 allows the fluid to be constantly updated, removing foreign particles that form in case of friction, i.e. flush the hinge joint.

Claims (2)

1. Porisheva group axialpo-p. 1y} a single hydraulic collimator containing a plunger with a spherical head having axial and distribution channels interconnected on which a base is mounted with a spherical counter surface and a hydrostatic support containing peripheral and central working chambers with the possibility of communicating with axes and distribution ducts., the central working chamber of the plenum is permanently connected to one of the channels, characterized in that, in order to increase durability and simplify the design, the shoe n with the inner cylindrical surface mating with a spherical surface and forming with the end surface of the cylindrical cavity, permanently communicating with the peripheral chambers of the hydrostatic bearing, and the axial distribution channels and arranged to communicate with HO- Lost shoe. 2. Piston group according to claim 1, characterized in that the height of the cylindrical surface of the shoe is equal to / y ft-f | rasp, K., where / g is the height of the shoe that is rolled along sa; d is the diameter of the spherical head n, the tunnel; PN-MKC is the maximum yro, i slope of the plunger axis relative to the axis of the tower. (Rig.y.