SU488932A1 - Bladed hydraulic motor - Google Patents

Description

one

This invention relates to vane hydraulic motors used in various industrial fields, where they are used to drive mechanisms and devices.

Known semi-rotary hadator motors are known, consisting of a body with separating stops, a rotor with blades and removable fitting cuffs.

The known design of the sealing of movable joints of the working cavities of a paddle half-full hydraulic motor limits its ability to operate at high pressures, since there is no reliable sealing of the radial clearance between the housing and the rotor.

The purpose of the invention is to improve the reliability of sealing gaps.

This is achieved by the fact that a removable elastic spanner with a V-shaped cross section is installed in the hydraulic motor in the sealing areas of the end face of the cavity between the rotor with the blade and the housing and the radial clearance between the blade and

housing and trapezoidal profile with L-shaped groove on the part of the sealing of the radial clearance between the housing and the rotor.

FIG. 1 shows a three-bladed hydrodzigatepa with a removed lid, general view; Fig. 2 shows the same in Figs. A - A; Fig. 3 shows the profile of the cuff section in the sealing areas of the radial gap between the blade and the housing and the tertiary gap between the rotor with the blade and the housing; Fig. 4 shows the profile of the cuff section on the seal area of the radial clearance between the housing and the rotor.

The hydraulic motor contains a clip 1, you will execute-Euya as a single whole with three dividing stops 2. which together with. lids 3 and 4 form a housing. Inside KopirvcJ there is a shaft 5, three blades 6 and po-iX) p 7.

The inner surfaces of the housing together with the rotor form a working chamber, which is divided by blades 6 and separating stops 2 into six working cavities, each. which compacted one of the six cuffs 8.

On the blade x 6, along the perimeter, closed grooves are made, in which cuffs 8 are installed, having a trapezoidal SL profile and i groove cross section profile in the radial clearance sealing area between the housing (inner surface; separation stop 2) and the rotor and V-shaped cross section profile in the sections sealing the rear gap between the blade and the housing to the TopaoBoio gap between the rotor with the blade and the housing. : Sealing the fixed joints of the housing and the movable output ends of the shaft 5 is carried out with rubber O-rings, respectively 9. ilO-and 11.

; Pressure is supplied and the working fluid is drained into the working cavities of the hydraulic assembly through the openings 12 and 13; in the housing and the openings 14 and 15 in the rotor; 7

The Ori connection of the choke holes; 12 from the pressure port, and 13 from the drain lines due to the pressure differential per lo-j Parts of the hydraulic motor shaft 5 rotates clockwise. At the same time, under the pressure of the working fluid in the pressure line g The cuffs 8 work cavities, connected to the hole 12 through the holes 14 in the rotor, and the drain comes from the working cavities connected to the hole 13 through the hole 15.

Subject invention

Bladed hydraulic motor containing body with separating stops, rotor

15 with paddles and removable sealing cuffs, characterized in that, for the purpose of raising over: - the tightness, the cuff is made with a V-shaped, cross-sectional profile in the face sealing areas

 of the gap between the rotor with the blade and the core and the radial gap between the blade and the body and with the trapezoidal profile with L. -shaped groove in the area of the seal: the radial gap between

25 housing and rotor.

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