SU1642102A1 - Rotor hydraulic drive - Google Patents

Abstract

The invention relates to hydraulics and can be used in rotary and rotary conveyor lines for processing workpieces of various machines. The aim of the invention is to increase reliability and expand the range of applications. The cylinder block is rotated relative to the copier. The working fluid is supplied to the cylinders through the spool, chamber and channels. The switch stem surrounds the contour of the copier and lowers, for example, compressing the spring to the control spool, which is fixed by balls, until the surface goes out from under the balls, after which the spring, uncoupling, moves the slide to another stop. The grooves change their position and the control spool moves to the upper position, and the piston moves in the opposite direction. The travel time of the spools depends on the time the spring is opened. During the reverse movement, the rod moves upwards and the other spring is compressed. 1 hp f-ly, 2 ill.

Description

 The invention relates to hydraulics and can be used in rotary and rotary conveyor lines for processing workpieces of various machines.

The aim of the invention is to increase reliability and expand the range of applications.

Figure 1 shows the cylinder block of the drive; Fig. 2 shows a slide valve of translational movement.

The rotor hydraulic drive contains a cylindrical distributor 1 rigidly connected to the cylinder block 2 and made with annular chambers 3, 4 for supplying and discharging the working fluid. In cylinders 5, 6, pistons 7, 8 are placed. The control spools 9, 10 of translational movement are housed in a housing.

The spool 9 (as well as the spool 10) is made with an axial stepped bore 11 and is equipped with a ball retainer with a concentrically mounted sleeve 12 and a sleeve 13, in the radial holes of which balls 14, 15 are placed, and with a two-position switch in the form of springs 16 spring-loaded from two sides , 17 with respect to the spool 9 of the stepped stem 18 supported on the copier 19 and placed in the bore 11 of the spool 9, which is integral with the sleeve 12, and in the latter, internal annular conical grooves 20, 21 are made for interaction with the balls 14, 15, mounted on the surface of the rod 18.

To enhance the signal of the spool 9, a control spool 22 of the second stage serves

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a cad with control cavities 23, 24 connected to grooves 25, 26. The spool body 9 has channels 27-31, grooves 32, 33 are made on the spool 9. The housing cover 34 is integral with the sleeve 13 and fixed coaxially with a fixed stop 35, movable stops 36, 37 are made on the rod 18. The block 2 has channels 38, 39 for connection with a source of working fluid and a drain. The channels 40, 41 and 42, 43 serve to connect the cylinders 7, 8 with spools 9, 10, 22. There is a juice 44 on the rod 18.

Hydraulic drive of the rotor operates as follows.

The cylinder block 2 with elements mounted on it rotates relative to the copier 19. The working fluid is supplied to the cylinders 7, 8 through the controlled spool 22 of the second stage, the annular chamber 3 and through the channels 41 or 40 depending on the position of the controlled spool 22. The working fluid is withdrawn from cylinders 5, 6 through the annular chamber 4 and through channels 40 or 41, also depending on the position of the controlled spool 22. Cameras 3 and 4 are spaced apart along the axis of the distributor 1, which allows them to be sealed with seals. When the cylinder block 2 rotates relative to the copier 19, the switch rod 18 rounds the contour of the copier 19 and goes down (figure 2), pressing the spring 16 to the control slide valve 9, which is fixed relative to the body by balls 14, 15, until - under the balls, the surface will not leave on ska 44 and it will not drown, leaving the groove 21, after which the spring 16 opens the valve and moves the valve 9 to the stop 35. The switching time is equal to the time for opening the spring 16.

The grooves 32 and 33 change their position relative to the bypass channels 27-31, the cavity 24 is connected to the drain, the cavity 23 - to the feed. The spool 22 moves to the upper position, the piston 7

begins to move in the opposite direction. The time of movement of the spool 22 does not depend on the steepness of the copier 19 and the speed of movement of the piston 7, but on the time of depressurizing the spring 16. The reverse switching occurs in the same way, but the rod 18 moves with the copier upwards and compresses the spring 17,

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Claims (2)

1. A hydraulic rotor drive comprising a rotary cylinder block and a distributor hydraulically coupled with a cylinder block and with control spools of translational movement, placed in the housing with the ability to interact with a cam, as well as axial and radial channels for connection with the source of working fluid and drain, which, in order to increase reliability and extend the range application, in it each pilot valve is fixed on the cylinder block, made with an axial stepped bore and equipped with a ball retainer with a concentrically mounted sleeve and sleeve, in the radial holes of which balls are placed, as well as with a two-position switch in the form of a stepped rod spring-loaded from two sides relative to the spool, supported on a copier and placed in the axial boring of the spool , performed together with the ball retainer sleeve, and in the latter has inner annular conical grooves for interacting with balls mounted with the possibility of rolling over the surface of the rod. 2. Drive pop. 1, that is, with the fact that the distributor is rigidly connected to the cylinder block and made with annular chambers for supplying and discharging the working fluid.