SU1560788A1 - Distribution assembly of axial-piston machine - Google Patents

Abstract

The invention can be used in volumetric hydraulic machines, in particular in the distribution devices of axial-piston hydraulic machines. The purpose of the invention is to increase reliability by making channels 23 connecting the annular channel 14 with the side surface inclined and forming the line passing through the center of the plate and the center of the channel exit to the side surface of the plate, directed in the direction of rotation of the plate. When the cylinder block and plate rotate, which performs the function of a centrifugal pump and on the surface of which, facing the distributor, a channel system is made, most of the fluid in the channels 22 will flow around the profiles of the channels 22 and be forced out into the internal cavity of the hydraulic machine. 1 hp f-ly, 4 ill.

Description

one

(21) 363036 / 25-29

(22) 01/13/88

(46) 04.30.90. Bul Number 16

(71) Kirovograd Plant of Hydraulic Power Machines Hydrosila; XXV Congress of the CPSU

(72) L. G., Zolotarevsky, S.S. Saltan, V.L. Tkachenko, S.V. Lysenko,

A.G. Nagorny, V.P. Grigoriev, Yu.F. Kachanov and V.A. Lychakov (53) 621.651 (088.8)

(56) USSR Author's Certificate No. 1285187, cl .- F 04 B 1/20, 1985,

(DISTRIBUTIVE DEVICE OF AXIAL PISTON HYDRAULIC MACHINE

(57) The invention can be used in volumetric hydraulic machines, in particular in the distribution devices of axial-piston hydraulic machines. The purpose of the invention is to increase the reliability by making channels 23 connecting the annular channel 14 with a side surface inclined and forming with a line passing through the center of the plate and the center of the channel exit to the side surface of the plate, an acute angle directed in the direction of rotation of the plate . When the cylinder block and plate rotate, which performs the function of a centrifugal pump and on the surface of which, facing the distributor, a channel system is made, most of the fluid in the channels 22 will flow around the profiles of the channels 22 and be forced out into the internal cavity of the hydraulic machine. T hp f-ly, 4 ill.

22

/four

sixteen

SP O

M

00 00

Fig.E

315

The invention relates to hydraulic machines for volumetric displacement, in particular, to distributing devices for axial-piston hydraulic machines.

The purpose of the invention is to improve on reliability.

Fig, I schematically shows the proposed distribution device, section; FIG. 2 is a section A-L in FIG. one; FIG. 3 is a section BB in FIG. one; in fig. k is the same if the channels are inclined.

The distribution device contains a block of I cylinders, a plate 2 with arcuate windows 3 according to the number of cylinders. The plate 2 rotates together with the cylinder block 1 by means of a pin h, which enters the groove on the plate 2 and is centered relative to the cylinder block by the sleeve 5. The cylinder block 1 has pistons 6 and is pressed by a spring placed around the drive shaft 8, together with the plate 2 to the distributor 9 which is centered relative to the plate 2 by the outer race of the bearing 10, pressed into the housing 11 of the hydraulic machine. By turning the valve 9 is fixed by a pin 12, pressed into the housing 11.

The surface of the plate 2, adjacent to the end of the cylinder block 1, has annular and non-through radial channels 13 for diversion of leaks, as well as an annular channel 1A with pockets 15 on the surface b adjacent to the surface

When the switchgear for non-reversible hydraulic machines is operating, the liquid will be carried out of the channels

17 of the distributor 9. The annular channels 13 and 1A communicated with each other through 23, and from the internal cavity with hydromachine holes 1.8 in the plate 2. Two will flow into the annular channel of the annular channels 19 and 20 in the plate 2 from the side of the central sleeve. 5 are communicated with each other through holes 21. The annular channel Ik with pockets 45-15 communicates with the internal cavity of the housing with channels 22 and 23, which are made on po14 on the plate 2 in a reversible hydromachine, circulating the cooled liquid between surfaces 16 and 17.

Claims (1)

1. An axial-piston hydraulic machine distributor device containing a rotating cylinder block and a distributor with high and low pressure windows installed in the inner cavity of the cylinder; a plate with arcuate windows is mounted on the cylinder block according to the number of cylinders, and at its end facing the distributor an annular channel and channels connecting the annular channel to the side surface of the plate, the surfaces 16 of plate 2 tangentially to the channel, i.e. The axes of symmetry of channels 22 and 23 lie on one straight line and touch the axis of symmetry of channel 1A. In a non-reversible hydromachine, the channels 23 are inclined so that the symmetry axis of each channel 23 forms with the axis of the plate 2 passing through its center and the intersection point of the axis of symmetry of the channel 23 with the outer side surface 2k of the plate 2, an acute angle 0 0 35 is directed in the direction of rotation of the plate and is 5-65 °. Axial piston hydraulic machine works as follows. When the cylinder block 1 and plate 2 are rotated (it acts as a centrifugal pump) most of the fluid in channels 22 will flow around the profiles of channels 22 and will be forced into the internal cavity of the hydraulic machine. From the channels 22 a small portion of the liquid will also be forced out by the action of centrifugal force. In this case, a pressure differential is formed between the through holes 21 and the ends of the channels 22 near the side surface of the plate 2 and the cooled liquid from the inner cavity of the hydraulic machine through the through holes 21, non-through radial and ring channels 13 and through holes 18 enters the ring channel on the plate. There will be a constant circulation of the cooled liquid between the surfaces 16 and 17. The fluid in the channels 23 will not be forced into the annular channel 1A, since this is prevented by the centrifugal force acting on it. When the direction of rotation of the cylinder block 1 and the plate 2 is changed, a similar cooling of the surfaces 16 and 17 with the only difference will be that the liquid will be forced out of the channels 23. When the switchgear for non-reversible hydraulic machines is operating, the liquid will be carried out of the channels five 0 l 23, and from the internal cavity of the hydraulic machine will flow into the annular channel 45 23, and from the internal cavity of the hydraulic machine will flow into the circular channel 14 on the plate 2, circulating the cooled liquid between the surfaces 16 and 17. Invention Formula 23, and from the inner cavity of the hydraulic machine will flow into the annular channel 1. An axial-piston hydraulic machine distributor device containing a rotating cylinder block and a distributor with high and low pressure windows installed in the inner cavity of the cylinder; a plate with arcuate windows is mounted on the cylinder block according to the number of cylinders, and at its end facing the distributor an annular channel and channels connecting the annular channel to the side surface of the plate, 13 21 FIG. 2 FIG. H 5-5 L