SU1423806A1 - Rotor-piston double-stage compressor - Google Patents

Abstract

Invention m. used in internal combustion engines. The purpose of the invention is to simplify the assembly of the compressor, improving the efficiency and life of the work. The rotors 7 and 8 on the eccentric shaft with bearings are located in the slots of the side covers 3-6. Movable gears 15 and 16 usa

Description

AND

H

)

3

ll /, 1VGGTG G TVI1 X)

22 16

 / BUT/ ///////////

/ 1 /// 1 / ////// j

/ 7

four

(

(L

with

Fyg.

They were mounted in the rotors 7 and 8, and the fixed gears 17 and 18 are located in the covers 3 and 5. The shaft is made in a combination of two parts 9 and 10, which are separate steps and connected by a splined joint. Both fragments are made independent and connected between themselves — into a single unit through an intermediate power case 2i1 and a centering ring 22. At its own shaft, on the side of the first one, the counterweight 25 is located on the side of the first shaft.

one

The invention relates to compressors, mainly rotor-piston, and can be used in a drive; x internal combustion.

The purpose of the invention is to simplify the collection to {and compressor, increase efficiency and service life.

FIG. 1 shows a compressor, 11 sectional section; in fig. 2 shows the section A-A in FIG. one ; in fig. 3 - compressor stages, made in the form of independent blocks with connecting elements.

The rotary piston compressor contains two bodies 1 and 2, covered by Skokovy lids 3 and 4, 5 and 6, two rotors 7 and 8 on the eccentric shafts ij and 10, installed with the help of the main bearings 11 and 12.13 and $ 14 3 and 4, 5 and 6, two movable gears 15 and 16, installed in rotors 6 and 8, two mobile gears 17 and 18, installed in two side covers 3 m 5. Shafts are made in the form of two independent modules 19 and 20 and assembled 13 single unit through the intermediate power housing 21. In the sockets of the inner main bearings there is a common entrovochnoe ring 22 (sevye slots 23 and 24, considered guides Eccentric shafts are formed on the installation portion indigenous podship- Yika 12 of the second stage from the first stage 8 IpoTopa set

It is assembled by modules and articulated through housing 21. Ring 22 provides coaxiality of shafts 9 and 10, the rigidity of which increases due to the fact that each module has two main bearings, the distance between which is insignificant. The presence of the housing 21 makes it possible to direct the cooling air to the crush 4 and 5, which improves the operation of the bearing assemblies 12 and 13 and ensures the discharge from the working elements of the compressor. 3 il.

common to both modules 19 and 20 counterweight 25.

The device works as follows.

When the shaft 10 rotates, the torque through the splines 23 and 24 is transmitted to the shaft 9 mounted on the shafts of the rotors 7 and 8 by means of moving

gears 15 and 17 and the fixed gears 17 and 18 make planetary motion, compressing and injecting gas.

The proposed design of a rotary piston compressor allows assembly by modules 19 and 20, i.e. separately the first and second stages, and coupling them through the intermediate case 21, the parallelism of the side surfaces of this case

provides the connection of the shafts 9 and 10 without shifting, and the common centering ring 22 ensures the coaxiality of the shafts 9 and 10. This simplifies the assembly of the compressor.

In the proposed construction, the stiffness of shafts 9 and 10 is increased. Due to the fact that each module 19 and 20 have two main bearings

11 and 12 (module 19) and 13 and 14 (module 20), the distance between the bearings is small. Thus, the load on one bearing is reduced, the deflection boom is reduced, fishing gears 9 and 10, and this leads to an increase in the service life of bearings 11–14 and synchronizing gears 15–18.

The presence of the intermediate housing 21 allows the cooling air to be directed to the side covers 4 and 5, which improves the operation of the bearing assemblies 12 and 13 and ensures good heat removal from the working elements of the compressor (buildings 1 and 2, covers 4 and 5, rotors 7 and 8). This increases the efficiency of the compressor, since the gas is compressed with heat removal. Installation on the side of the rotor 8 of the first stage of the single counterweight 25, common to both modules 19 and 20, simplifies the balancing scheme and reduces the axial dimensions.

Claims (1)

Invention Formula A rotary piston two-stage compressor, comprising a housing, side0 five 0 lids, rotors on eccentric shaft with bearings, located in the slots of the side covers, movable gears mounted in the rotors, stationary gears located in the side covers, and a counterweight, characterized in that, in order to simplify the compressor assembly, increase efficiency and work the compressor shaft is made up of a composite of two parts belonging to separate stages and connected by a spline connection, both stages are made independent and interconnected into a single unit through additionally installed industrial diate power casing and the centering ring, and a counterweight is located on, the free end of the shaft from the first stage. FIG. 2 Fig.Z 20