SU1285187A1 - Distribution device of axial-piston hydraulic machine - Google Patents

Abstract

The invention relates to hydraulic machine building and allows improving the reliability of the device by improving lubricity. At the end of the plate 2, installed between the distributor (P) 9 and the cylinder block (BC) 1, from the side of BC 1 there are annular channels and ck radial channels, and on the other end there is an annular channel 14 with pockets connected by an opening 23 with channels 20 opposite butt. An annular and axial circulation channels interconnected and openings connecting annular channels 20 P 9 and plates 2 are made on P 9 on the side of the housing 11. The annular channel 14 with pockets is connected to the internal cavity of the housing 11 by radial grooves 24. Due to the centrifugal forces acting on the working fluid from the rotation of the BC I result in a pressure differential between the axial circulation channel and the ends of the grooves 24 around the peripheral surface of the plate 2, which contributes to the constant circulation of the liquid between the surfaces . 5 il. (L rsD 00 el 00 11

Description

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The invention relates to hydraulic machines for volumetric displacement, in particular, to distribution devices of axial-piston hydraulic machines with a rotating cylinder block.

The purpose of the invention is to increase reliability by improving lubricity.

FIG. 1 shows a switchgear (a feed pump is shown conventionally), a longitudinal section; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one; in fig. 4 shows a section B-B in FIG. one; in fig. 5 is a section of YYD in FIG. one.

The switchgear contains cylinder block 1, 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 4, the inlet and the pressure of the working fluid in the cylinders to the surface 17 of the distributor 9, thus forming a seal between the surfaces 16 rotating relative to each other. and 17. Leakage of working fluid between both surfaces partly enters the annular channel 26, into the holes 27, into the annular channel 25, into the annular and radial channels 13, through which they are diverted to the periphery of the plate.

But most of the leaks fall into the annular channel 14 on the surface 16 of the plate 2, accumulate in the pockets 15 and are discharged into the cavity of the body of hydraulic masses through radial grooves 24.

On the other hand, the working fluid from the feed pump 22 is supplied to the axial circulation channel 21 and further to the annular channel 20 and the group of through-holes 23, to the annular channel 14 on the plate. Due to the impact on the working fluid

20 into the bone of the centrifugal forces due to rotation of the block. The cylinder block 1 has pores 6 and the bottom of the cylinders 1 forms a differential pressure spring 7 placed around the axial circulation valve. - the drive shaft 8, together with the plate 2 of the plate 21 and the ends of the radial grooves 24 to the distributor 9, which is centered near the peripheral surface of the plate relative to the plate 2 of the outer backing, which contributes to a constant circulating

my support 10, pressed

body 11 gidromashiny. From turning the distributor 9 is fixed with a clutch 12, pressed into the housing 11.

The surface of the plate 2 adjacent to the Topify of the cylinder block 1 has annular and radial channels 13 for diverting leaks, as well as an annular channel 14 with pockets 15 on the surface 16 adjacent to the surface 17 of the distributor 9.

Dispenser 9 has windows low 18

liquid between the surfaces 16 and 17, their intensive cooling and improvement of the reliability of the switchgear.

Claims (2)

Invention Formula The distribution device of the axial-pryvnevnogo gidromashiny, containing rotating cylinder block and high pressure 19 installed in the internal cavity of the housing, as well as 35 ring distributor with high windows and low channel 20 on the side adjacent to the crust pressure cipus 11 communicated with an axial circulation channel 21 of a feed pump 22. Within the annular channel 20 of the distributor 9, there are a series of through holes 23 extending into the annular channel 14 on the surface 16 of the plate 2. On the surface 16 of the plate 2 between the pockets 15 there are also made radial grooves 24 extending from the annular KA40 A cylinder with a distributor is fitted with a plate with arcuate windows according to the number of cylinders, mechanically connected to the block, and on its end face facing the cylinder block there are annular and through radial channels, on the other end there is a ring channel with pockets, and on the side of the distributor facing An annular and axial zirnal 14 is provided to the casing to the peripheral surface of the 45-ducting duct, connected between the vessels and the hydromaschine that extend into the internal cavity of the housing. The two annular channels 25 and 26 in the plate 2 on the side of the centering sleeve 5 are interconnected by a series of through holes 27. A combat, characterized in that, in order to increase reliability by improving lubricity, openings connecting the annular channels of the distributor and plates are made in the distributor. During operation, the axial-piston hydraulic is 50, with the annular channel with the pockets of the joint, the cylinder block 1 with pistons 6 with the internal cavity of the body of the body and the plate 2 is pressed by the spring 7 of the radial grooves. and the pressure of the working fluid in the cylinders to the surface 17 of the distributor 9, thereby forming a seal between the rotating surfaces 16 and 17. The working fluid leaks between the two surfaces partially fall into the annular channel 26, into the holes 27, into the annular channel 25, into annular and radial channels 13 along which they are diverted to the periphery of the plate. But most of the leaks fall into the annular channel 14 on the surface 16 of the plate 2, accumulate in the pockets 15 and are discharged into the cavity of the body of hydraulic masses through radial grooves 24. On the other hand, the working fluid from the feed pump 22 is supplied to the axial circulation channel 21 and further to the annular channel 20 and the group of through-holes 23, to the annular channel 14 on the plate. Due to the impact on the working fluid The bone of the centrifugal forces from the rotation of the block of cylinders 1 forms a pressure differential between the axial circulation channel 21 and the ends of the radial grooves 24 near the peripheral surface of the plate, which contributes to the constant circulation The bone of the centrifugal forces from the rotation of the block of cylinders 1 forms a pressure differential between the axial circulation channel 21 and the ends of the radial grooves 24 near the peripheral surface of the plate, which contributes to the constant circulation liquid between the surfaces 16 and 17, their intensive cooling and improvement of the reliability of the switchgear. Invention Formula 0 A cylinder with a distributor is fitted with a plate with arcuate windows according to the number of cylinders, mechanically connected to the block, and on its end face facing the cylinder block there are annular and through radial channels, on the other end there is a ring channel with pockets, and on the side of the distributor facing An annular and axial zirbous are made to the body, characterized in that, in order to increase reliability by improving lubricity, openings are made in the distributor, connecting the distributor and the annular channels s. moreover, the annular channel with pockets is connected with the internal cavity of the housing by radial grooves. 18 / 7 23 nineteen FIG. 2 20 Z3 FIG. 13 27 J 27