SU1435817A1 - Positive-displacement hydraulic machine - Google Patents

Abstract

The invention allows to simplify the design and increase the reliability of the hydraulic machine. On the end surfaces 11, 12 of each piston 7, 8, profiled protrusions (B) 13, 14 are made, and on opposite surfaces 15, 16, depressions 17, 18 are made similar to profile B. In a toroidal bore 6 of housing 1, in which Pistons with the formation of working chambers 9 and 10 are installed, and on the outer diameter 30 of the rotor 4 one profiled groove 32, 33 is made. Each piston is equipped with a coupling mechanism 22 and 23 made in the form of a flat spring-loaded plate relative to the piston. Each mechanism is equipped with two B 24, 25 and a similar profile B 13 and 14 hole. The plate is installed in the piston with the possibility of radially relative to the bore of mixing and interaction of the B 24. 25 with one of the slots. Profile 13, 14, depressions 17, 18 of the piston and the plate aperture are made in. a cone. When the shaft 5 is rotated, one of the pistons is immobile due to the fact that its B is recessed in the corresponding groove of the housing, and the other piston rotates together with the rotor, reducing the volume of one working chamber and increasing the volume of the other. 1 hp f-ly, 4 ill. A-A SO (L

Description

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The invention is related to mechanical engineering, in particular, to rotary hydraulic machines of volumetric displacement, and can be used in various systems of hydraulic propulsion.

The purpose of the invention is to improve the reliability of the hydraulic machine.

FIG. 1 shows a volumetric hydraulic machine, a longitudinal section; in fig. 2 is a section A-A in FIG. one; in fig. 3 — lia node of FIG. 2; in fig. 4 - section B-B in FIG. 3; The volumetric hydraulic machine comprises a housing 1 with cavities high 2 and low 3 pressure. The housing 1 has a rotor 4 with a shaft 5, forming a toroidal bore 6, in which is located), two hollow pistons 7 and 8 with the formation of working chambers 9 and 10. On the end surfaces 1 and 12 of the pistons 7 and 8 there are profiled protrusions 13 and 14, and on opposite sides of 15 and 16, the depressions 17 and 18 are formed and the projections 13 and 14 prof. L, in particular, in the form of a cone. Moreover, the protrusions 13 and 14 and depressions 17 and 18 are located along the central axis 19 of the pistons 7 and 8. On the sides 15 and 16 there are cylindrical grooves 20 (the second groove is not shown) in which the flat springs 21 are installed (the second spring is not shown). Pistons 7 and 8 are equipped with joint mechanisms 22 and 23 made in the form of a flat, spring-loaded plate relative to the piston 7 or 8. Each mechanism 22 And 23 of the connection, has protrusions 24 and 25, as well as two through holes 26 and 27: one - 26 - cylindrical under the flat spring and the second - 27, whose profile is similar to the profile of the projections 13 and 14 of the piston 7 or 8, introduced into a truncated cone. The cylindrical bore 26 is offset from the central axis 28 of the coupling mechanisms 22 and 23, the axis 29 of the second bore 27 coincides with the central axis 28 of the coupling mechanisms 22 and 23. The outer groove diameter 30 of the rotor 4 and the inner surface 31 of the gore bore 6 of the housing 1 are provided with shaped grooves 32 and 33 for the projections 24 and 25 of the coupling mechanisms 22 and 23.

Gidromashina works as follows.

When the shaft 5 rotates, the rotor 4 is rotated. The piston 7 remains stationary due to the fact that the projection 24 of the joint mechanism 22 under the action of a flat spring 21 entering the groove: 10) 7 and the cylindrical bore 26 of the joint mechanism 22 will be recessed 33 of housing 1, 8 rotates together with the rotor 4, since the mechanism 23 connecting with its EXHIBITION 25 under the action of a flat spring (not shown) will be recessed into the prospect) or groove 32 of the rotor 4. When rotating, the piston 8 reduces the volume of the working chamber 9 and while increasing the volume second working chamber 10. The operation is carried out supply of hydraulic fluid from .polosti 3 into the chamber 10 and the displacement of hydraulic fluid into the cavity poddavleniem 2. The piston 7 is fixed until

. until the protrusion 14 of the piston 8 enters the conical bore 27 of the connecting mechanism 22 of the piston 7 (shown by the dotted line in FIG. 3). At the output of the protrusion 14 into the hole 27, the coupling mechanism 22, overcoming the force of the spring 21, is displaced until the central axis 28 of the connecting shaft 28 coincides with the central axis 19 of the pistons 7 and 8. The protrusion 14 of the piston 8 penetrates into the depression 17 of the piston 7 and the latter piston 8 begins its movement. At that

The same time, the protrusion 25 of the connecting mechanism 22 of the norsing 7 gradually enters the profiled groove 32 of the rotor 4, and a similar part 25 of the mechanism 23 of the connection of the piston 8 leaves this groove 32 and another protrusion (not shown) enters the profiled

5 groove 33 of the bore 6 of the housing 1, fix the por- tion 8 in place. As the rotor 4 rotates further, the duty cycle repeats.

The invention simplifies the design and increases its reliability.

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Claims (2)

1. A volumetric hydraulic machine, comprising a housing with high and low pressure cavities, in the toroidal bore of which two pistons are placed with the formation of working chambers, and a rotor communicating with the pistons through a connecting mechanism, characterized in that, in order to simplify the design and increase reliability, one of the end surfaces of each norn it is equipped with a profiled protrusion, and the other has a depression similar to the protrusion profile, each toron has a shaped groove in the toroidal bore of the body and a pa of the outer diameter of the rotor, each piston is equipped with a connecting mechanism, and the plate is spring-wise relative to the piston. Equipped with a through-profile gurshn profile similar to a protrusion and two protrusions and installed in a piston with the possibility of radial with respect to the bore of the housing movement and the interaction of each plate with one of the grooves. 2. Hydromanual no. 1, characterized in that the profile of the protrusion and trough of the piston and the orifice plate of the mechanism of the H1N1 mechanism is made in the form of a cone. 9g.1 33 ig./