SU1435819A1 - Double-screw pump - Google Patents

Abstract

The invention allows to improve the energy performance and reliability of the twin-screw pump. In the cylindrical bores 3 of the housing casing there are two pairs of rotors (P) 4.5 with different directions of screw cutting 6. P 4.5 is installed with a gap 7 between them with a cylindrical surface 8 and an inner surface 9 of bores 3. With shafts 10 P 4.5 rigidly synchronized gears are matched. P 4,5 are installed with their geometrical axes 12,13 rotating relative to the geometrical axes 14, 15 of the bores 3 towards the geometric point 16 of the screw thread 6 in engagement and perpendicular to the plane 17. The plane 17 passes through the axes 14, 15 of the bores 3. The amount of displacement is equal to half of the gap 7, reduced by the amount of the marginal deviation of the tolerance on the manufacture of the outer diameter P 4,5, which facilitates the assembly of the pump and eliminates the wear of the surface P 4,5. 2 Il.

Description

15

fl-fi

/four

oo ate

00

with

FIG. 2

FIELD OF THE INVENTION The invention relates to mechanical engineering, in particular to dvuh, iitovye pumps.

The purpose of the invention is to increase energy standards and reliability.

FIG. 1 shows a twin-screw pump, a longitudinal section; in fig. 2 shows section A-A in FIG. one.

The twin-screw pump includes a housing 1 with a yoke 2, in which cylindrical bores 3 are stirred, two pairs of rotors are enameled

cuschel 3 clips 2 in the direction opposite to the deflection of rotors 4 and 5, i.e. with interleaving in the direction of the geometric point 16 of the inlet screw thread 6 of the rotors 4 and 5 in engagement, perpendicular to the plane 17 passing through the geometrical axes 1 and 15 of the cylindrical bores 3, by an amount equal to half the diameter of the gap 7, reduced by the maximum deviation of the field admission

4 and 5 with a different direction screw 10 on the manufacture of the outer diameter of the rotary cut 6, installed with the formation of 4 and 5, facilitates the assembly of the pump and the gap 7 between the outer cylindrical includes wear of the surface of the rotors 4 and 5

the surface 8 of the rotors 4 and 5 and the internal expense of friction on the inner surface 9

surface 9 cylindrical bores 3, cylindrical bores 3, which provides

and rigidly coupled with the shafts of 10 rotors, j-improvement of energy indices and on 4 and 5 synchronized, not 1 gear 11, with - -. ,, „„ „“

Thereby, the rotors 4 and 5 are installed with their rotational geometrical axes 12 and 13 relative to the geometrical axes 14 and 15 of the cylindrical bores 3 of the casing 2 towards the geometrical point 16 of the entrance screw 20, cutting 6 of the rotors 4 and 5 into engagement and perpendicular to the plane 17, passing through the geometrical axes 14 and 15 of cylindrical bores 3, the mixing value being equal to half of the diametrical gap 7, reduced by the amount of the maximum deviation of the tolerance mark for manufacturing the outer diameter of the rotors 4 and 5. The twin-screw pump works leduyuschim way.

25

Claims (1)

dej} the operation of the twin-screw pump. Invention Formula A twin-screw pump comprising a housing with a yoke, in cylindrical bores of which two pairs of rotors with different threading directions are installed, installed to form a gap between the outer cylindrical surface of the rotors and the inner surface of the cylindrical bores, and synchronizing gears rigidly coupled to the rotor shafts, differing in that in order to increase energy performance and reliability, the rotors are installed with When wounding, rotors 4 and 5 work - ,,. by displacing their geometrical axes, the liquid moves from the suction chamber, the scoop relative to the geometrical axes fills the depressions formed by the wine-cylindrical bores of the cage towards YOU by cutting 6, and then, having entered the closed geometric points of the screw cavity, it moves along the axes 12 and 13 roto-rg (the rotors are engaged and the perpendiculars 4 and 5, and then pushed out into the chamber of the plane passing through the geo-injections. Simultaneously the working fluid axis of the cylindrical bores, high-pressure bone On the surface, the magnitude of the displacement is half the rotors 4 and 5, which leads to their pro-diametral clearance, reduced at the height. The installation of the rotors 4 and 5 with the displacement of the maximum deviation by the tolerance of their geometrical axes 12 and 13 relate to the manufacture of the outer diameter of the geometrical axes 14 and 15 of cylindrical rotors. cuschel 3 clips 2 in the direction opposite to the deflection of rotors 4 and 5, i.e. with interleaving in the direction of the geometric point 16 of the inlet screw thread 6 of the rotors 4 and 5 in engagement, perpendicular to the plane 17 passing through the geometrical axes 1 and 15 of the cylindrical bores 3, by an amount equal to half the diameter of the gap 7, reduced by the maximum deviation of the field admission for the manufacture of the outer diameter of the rotor improvement of energy indicators and - -. ,, „„ „“ dej} the operation of the twin-screw pump. Invention Formula A twin-screw pump comprising a housing with a yoke, in cylindrical bores of which two pairs of rotors with different threading directions are installed, installed to form a gap between the outer cylindrical surface of the rotors and the inner surface of the cylindrical bores, and synchronizing gears rigidly coupled to the rotor shafts, differing in that in order to increase energy performance € 3 4 2 w eleven F1 / g.1