SU1435805A1 - Axial=flow plunger hydraulic machine - Google Patents

Description

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The invention relates to hydraulic machine building, in particular to volumetric hydraulic machines of axial-piston type with the upper shaft, cylinder block.

The purpose of the invention is to increase the durability and reliability of the hydraulic machine.

The drawing shows an axial-plunger hydraulic machine, a longitudinal section.

The hydraulic machine consists of a housing 1 in which a drive shaft 3 with a flange 4 is mounted on bearings 2. In flange 4 there is fixed a central spike 5 and hydrostatic shoes b with heads of 7 plungers 8. The shoes 6 rest on a washer 9 fixed from rotation with respect to the body 1 by a pin 10. The plungers 8 are installed in the cylinder block 11 with the formation of the working chambers 12. The cylinder block 11 is made in the form of separate cylinders 13 with spherical heads 14 supported on the corresponding spherical recesses 15 of the attachment bottom 16, spring-loaded to the to the fixed disk 17 and rigidly fixed on the central stud 5. In addition, the cylinders 13 enter with a gap into the holes 18 of the carrier 19, rigidly fixed on the central stud 5. On the spherical heads 14 of the cylinders 13 there are annular grooves 20 and axial channels 21 that connect the grooves 20 with a cavity of 22 housing 1. In the plungers 8 and the shoes 6 are made axial throttle holes 23 and 24, informing the workers ka0

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measures 12 with cameras 25 hydrostatic discharge of shoes 6.

Gidromashina works as follows.

The torque transmitted by the drive shaft 3 to the center pin 5 and the pistons 8 causes the rotation of the cylinder block 11. The presence of an annular groove 20, connected via an axial channel 21 to the cavity 22 of the housing 1, prevents the cylinders 13 from being pushed out from the spherical recesses 15 of the attachment bottom 16 due to the presence of the working fluid in the articulated spherical pair.

Claims (1)

Invention Formula An axial-plunger hydraulic head, containing a drive shaft mounted in a housing cavity on bearings with a flange and central spike and plungers rigidly fixed on it, a cylinder block, each cylinder of which is made with a spherical head, supported by a corresponding spherical recess of the secondary bottom, located on the distribution disk and rigidly fixed on the central spike, drove with openings for cylinders, rigidly fixed on the central spike, characterized in that, in order to increase the durability Spines and reliability, annular grooves are made on the surface of spherical cylinder spikes, communicating with the body cavity through axial channels made also on the heads.