SU371355A1 - ADJUSTABLE AXIAL PISTON HYDRAULIC MACHINE - Google Patents

Description

one

The invention relates to axial-porsche hydro, a machine with a rotating cylinder block.

Known axial hydraulic machines with a rotating cylinder of cylinders, equipped with a centrifugal wedge device for pressing the cylinder block to the face (distributor with a force depending on the speed of rotation of the cylinder block-in. When used as an adjustable hydraulic motor, the centrifugal device creates the pressing of the cylinder block cannot correspond to the pressing force, caused by the torque, in the whole range of change of the speed of the enemy's block due to the fact that the law of change is The engaging force differs from the quadratic when changing the cylinder rotational speed of Oloka due to the reduction of the displacement of the hydraulic motor.

The aim of the invention is to eliminate this drawback.

This goal is achieved by the fact that part of the load-carrying device of the centrifugal irim device is equipped with supporting elements, springs for transmitting forces to supporting elements and stops for limiting the movement of loads by centrifugal forces. When a certain rotational speed is reached, the load stops. They come into contact with the cylinder block, as a result of which these risks are shut down.

Thus, the law of change, iodi mode, is approaching the law of change

squeezing effort.

FIG. 1 schematically depicts an axially piston adjustable hydraulic motor, an incisional section; in fig. 2 - graphs of changes in the oirok of the expansive and balancing

moments acting on the cylinder of the hydraulic motor.

The 1-motor contains a rotating cylinder block 1 with a piston mn 2 adjacent to the valve 3. With the valve rigidly

axis 4 is connected, on which the block / is supported through iodilnik 5. Support washers 6 and 7 are located in the central bore of the block / CUT, adjacent, respectively, to the outer race of the bearing 5 and to the end face of the block 1. Intermediate conical surfaces of washers 6 and 7 carry wedge centrifugal weights, 9. Loads 9 through springs 10 interact with WEDGE supporting elements 11, adjacent to the conical surfaces of the shields 6

and 7. The course of the cargo .9 limit the stops 12.

To create a preliminary preload of the block / to the distributor 3 between the block and the washer 7, the spacing of the springs 13 is rotated. During rotation: the cylinder block loads 8, 9 under the action of

centrifugal forces are pressed against the washers 6, 7 n to create a pressing force of the block 1 to the distributor 5, depending on the speed of rotation of the block. When a certain rotational speed is reached, the lugs 12 of the prusses 9 enter into a co-tact with the I01 superpower of the bore-kn block 1, as a result of which the further pressing force occurs only under the action of centrifugal forces and cargo 8 and the supporting elements 11, and the law of changing the pressing force approaches closure otzhnma changes. Subject and use of b) e and E Adjustable axial-piston hydraulic machine with a rotary shaft with a c-cylinder unit and an end dispenser, equipped with a centr; the cylinder block and the thrust element, characterized in that, in order to bring the pressing force generated by the device to the pressing force over the entire range of variation of the rotational speed of the cylinder block, supporting elements interact with loads through the springs, and stops to limit the movement of loads under the action of centrifugal forces.