SU1446347A1 - Axial-flow piston hydraulic machine - Google Patents

Abstract

The invention can be used in transmissions of vehicles. The purpose of the invention is to increase the energy intensity and simplify the design of the hydraulic machine. A cylinder block with pistons 4 and shoes 5 is mounted in the housing on the drive shaft. Combining the shoes 5, the separator 6 presses them against the working surface. (P) an inclined washer 8 installed in the trunnions 9. The surface 7 is peripherally provided with openings 10 and channels 11, in which radial and axial pushers (T) 12 and 13 are placed. The latter are supported on springs 14.P 15 and 16 T 12 and 13 are at an angle of 53-65 °. an axis 17 T 12. A ring 18 is installed between T 12 and the separator 6. The lateral II of the ring 18 has a bevel at an angle of 25-37 ° C axis 17. Anti-friction coating on the support P 20 of the ring 18 reduces the coefficient. friction. The arrangement of the mechanism for pressing the shoes 5 to the washer 8 is compact and allows reducing the spring force, since the angles of the bevels on T 12 and 13 provide a clamp with greater force. 1 hp f-ly, 3 ill. i (P

Description

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The invention relates to axial piston piston rotors with rotary cylinder blocks that can be used in hydrostatic transmissions of various vehicles,

The purpose of the invention is to increase the energy intensity and simplify the design of the hydraulic machine.

Figure 1 shows the hydraulic machine, a longitudinal section; figure 2 - section aa in figure 1; on fig.Z - device podzhati shoes.

through the intermediate ring 18, antifriction coating on the support surface 20 of the ring 18 reduces the coefficient of friction. The implementation of the mating surfaces of the pushers at an angle in the range of 53-65 to the axis of the radial pusher, and the side surface of the ring with a bevel at an angle in the range of 25-37 ° to the axis of the radial pusher ensures optimum pressure. Bashmakov to the inclined washer.

Device pressing mechanism bash

Hydraulic machine contains installed J5 poppies to inclined washer done

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in the housing 1 on the drive shaft 2, a block of 3 cylinders with pistons 4 and shoes 5 located in the separator 6. Combined the shoes 5, the separator 6 presses them against the working surface 20 7 of the inclined washer 8 installed in the trunnions 9. The working surface 7 at the periphery it is provided with openings 10 and channels 11 in which radial 12 and axial 13 pushers are placed, with the last 01 being stored on springs 14.

The mating surfaces 15 and 16 of the pushers 12. and 13 are made at an angle ZZ-b3 to the axis 17 of the radial pusher 12.

In addition, a ring 18 can be installed between the radial pusher 12 and the separator 6. The lateral surface of the ring 18 has a bevel 19 at an angle of 25-37 to the axis 17 of the radial pusher 12. The supporting surface 20 of the ring 18 is designed as an anti-friction collar, for example from PTFE.

Hydraulic machine works as follows.

When the drive shaft 2 rotates, the cylinder block 3 rotates, the driving pistons 4 and the shoes 5, which rest on the inclined washer 8. The separator 6 provides synchronism of rotation of the shoes 5 and the necessary pressing to the inclined washer 8, the spring 14 acts on the axial pusher 13 and the force from springs 14 is transferred from axial pusher 13 through mating surfaces 15 and 16 to radial pusher 12, and then directly to separator 6 or

it is most compact and allows to reduce the spring force, since the angles of the bevels on the radial and axial surfaces of the bodies ensure that the shoes are clamped with much greater force.

Claims (2)

1. An axial-piston hydraulic machine containing a cylinder block with pistons and shoes installed in a bus on the drive shaft with CiinapaTope with the possibility of contact with a working surface on a 30-pt washer installed in the trunnions and a shoe preload consisting of a group of pushers having inclined mating surfaces characterized in that, in order to increase the energy intensity and control of the hydraulic machine design, the working surface of the inclined washer is circumferentially provided with holes and channels for radial and axial stems pushers mounted to vzash1odeystvi each other and separable torus, wherein the axial pushers are spring-loaded in the channels, and the mating surface of the pushrods are made 35 40 45 at an angle of 53-65 to the axis of the radial pusher. 2. Hydromachine according to claim 1, characterized in that the separato is provided with a gland ring, which is in association with the radial pusher, the side surface of the ring is made with a bent at an angle of 25-37 ° to the axis of the pusher, and the bearing surface of the ring is collar with anti-friction coating. it is most compact and allows to reduce the spring force, since the bevel angles on the radial and axial pushers provide for the clamping of the shoes with much greater force. Invention Formula 1. An axial piston hydraulic machine containing a cylinder block with pistons and shoes mounted in a housing on the drive shaft, located in CiinapaTope with the possibility of contact with the working surface on. clone washer installed in the pins and press-fit device consisting of a group of pushers having inclined mating surfaces, characterized in that, in order to increase power consumption and simplify the design of the hydraulic machine, the working surface of the inclined washer on the periphery is provided with holes and channels for radial and axial pushers installed with the possibility of interaction between themselves and the separator, the axial pushers are spring-loaded in the channels, and the mating surfaces of the pushers are made at an angle of 53-65 to the axis of the radial pusher. 2. Hydromachine according to claim 1, characterized in that the separator is equipped with a gland ring mating with a radial pusher, the side surface of the ring is made with a bevel at an angle of 25-37 ° to the axis of the pusher, and the supporting surface of the ring is made in the form of a collar with antifriction coating. 1 2