RU48602U1 - ROTARY VALVE COMPRESSOR - Google Patents

Abstract

The utility model relates to compressor engineering and can be used in a plate compressor. The technical result that can be achieved using the proposed utility model is to reduce friction power losses in the compressor, increase the reliability and efficiency of the compressor, reduce the number of dismantling and assembly operations, simplify the scheme of maintenance and repair. The rotary vane compressor comprises a housing 1 (FIG. 1) with a pressed sleeve 2 of elastic antifriction material. Inside the housing 1, an rotor 3 is eccentrically mounted, with the possibility of its rotation, in its grooves 4 there are plates 5 that can move in the radial direction. Plates 5 divide the internal volume of the pump into separate chambers 6, 7, 8, 9 (Fig. 3). On the plates 5 at the place of their contact with the sleeve 2 of the compressor housing 1, thrust bearings 10 are rigidly fixed, made in the form of a continuation of the plate 5 with a rounding in the upper part of elastic antifriction material, with the possibility of its deformation and the weight of the plate with the ability to determine the degree of deformation of the thrust bearings 10 of the plate 5 . Inside the plate 5 has a cavity 11

for lubricant 12, and the plate itself is made of material that can be impregnated with lubricant 12. The plate 5 has a fixed process plug 13 and a plug 14 for filling with lubricant 12 during operation. Side caps 15, 16 are installed at the ends of the casing. The side cover 16 has an opening with a threaded plug 17 through which the plates 5 are filled with lubricant 12. The pulley 18 mounted on the compressor shaft has marks 19 (Fig. 2) to determine the exact position plates 5 relative to the plug 17 in the cover when refueling.

Description

The technical field to which the utility model belongs.

The utility model relates to compressor engineering and can be used in a plate compressor.

The level of technology.

Known rotary vane compressor comprising a housing with side covers, with inlet and outlet openings, an eccentrically mounted rotor, in the radial grooves of which are plates with thrust bearings, mounted on the stator side with the possibility of rotation around the axis of attachment and made with a length of 1 = 2R {π / n -arcsin [1 / Rsin (π (n-1 / n))]}. (see USSR author's certificate No. 1421904, class F 04 C 18/344, published 07. 09. 1988).

The disadvantage is the complexity of the compressor design.

Known rotary vane compressor comprising a housing with side covers, with inlet and outlet openings, an eccentrically mounted rotor, in the radial grooves of which are plates with thrust bearings, mounted on the side of the stator with the possibility of rotation around the axis of attachment and made with a radius R = R _p R _c / R _p + R _c (see USSR author's certificate No. 1321919, class F 04 C 18/344, published. 07.07.1987).

The disadvantage is the complexity of the compressor design.

The closest in technical essence and the achieved positive effect, and adopted by the authors for the prototype, is a rotary vane compressor containing a housing inside which is installed a sleeve of elastic antifriction material, with side covers with inlet and outlet openings, an eccentrically mounted rotor, in the radial grooves of which there are plates with thrust bearings, which are made in the form of a continuation of the plate with a rounding in the upper part of an elastic antifriction material, with the possibility of tew of its deformation. (see utility model No. 43,043, published. 08/30/2004)

Its disadvantage is increased labor costs for maintenance and repair of compressors, an increase in the number of disassembly and assembly operations.

Disclosure of the invention.

The technical result that can be achieved using the proposed utility model is to reduce friction power losses in the compressor, simplify the scheme of maintenance and repair, reduce the number of disassembly operations and increase the life of the compressor.

The technical result is achieved by the fact that in a rotary vane compressor comprising a housing equipped with a sleeve of elastic antifriction material, with inlet and outlet openings, an eccentrically mounted rotor, in the grooves of which are located

plates with thrust bearings, made in the form of a continuation of the plate with a rounding in the upper part of elastic antifriction material, with the possibility of its deformation and side covers, plates made with a cavity for lubricant with the possibility of filling them through the side cover with lubricant without disassembling the compressor.

Brief Description of the Drawings

Figure 1 shows a rotary vane compressor, a longitudinal section.

Figure 2 - rotary vane compressor, view from the side of the pulley.

Figure 3 - rotary vane compressor, cross section.

The implementation of the invention.

The rotary vane compressor comprises a housing 1 (FIG. 1) with a pressed sleeve 2 of elastic antifriction material. Inside the housing 1, an rotor 3 is eccentrically mounted, with the possibility of its rotation, in its grooves 4 there are plates 5 that can move in the radial direction. The plates 5 divide the internal volume of the rotary vane compressor into separate chambers 6, 7, 8, 9 (Fig. 3). On the plates 5 at the place of their contact with the sleeve 2 of the compressor housing 1, thrust bearings 10 are made rigidly made in the form of a continuation of the plate

5 with a rounding in the upper part of an elastic antifriction material, with the possibility of its deformation. With the weight of the plate, it is possible to set the degree of deformation of the thrust bearings 10 of the plate 5. Inside the plate 5 there is a cavity 11 for lubricant 12, and the plate 5 itself is made of material that can be impregnated with lubricant 12. The plate 5 has a fixed process plug 13 and the plug 14 for lubricating the lubricant material 12 during operation. Side caps 15, 16 are installed at the ends of the casing. The side cover 16 has an opening with a threaded plug 17 through which the plates 5 are filled with lubricant 12. The pulley 18 mounted on the compressor shaft has marks 19 (Fig. 2) to determine the exact position plates 5 relative to the plug 17 in the cover 16 when refueling. There are also inlet and outlet pipes 20, 21, respectively.

Rotary vane compressor operates as follows.

Suction, compression and injection of gas is carried out when the volumes of chambers 6, 7, 8, 9 (Fig. 3) are formed, formed by an eccentrically located rotor 3, plates 5, body 1 with a sleeve 2 and side covers 15, 16. Suction and injection of gas is carried out through nozzles 20 and 21, respectively. When the rotor 3 rotates under the action of centrifugal force acting on the plate 5, s

thrust bearings 10, the lubricant 12 located inside the plate 5 is metered into the friction zone, lubricating the working surfaces. To replenish the plate 5 with lubricant 12, the compressor is stopped, using the marks 19 on the pulley 18 combine the plug 17 of the side cover 16 with the plug 14 of the plate 5, pull out the plugs 17, 14, and fill the plate 5 with lubricant 12 into the cavity 11.

The proposed utility model in comparison with the prototype and other well-known technical solutions has the following advantages:

- reduction of power losses on the compressor drive;

- increase the reliability of the compressor;

- increased efficiency by reducing power loss to the drive;

- reduction in the number of dismantling and assembly operations;

- simplification of the scheme of maintenance and repair

Claims (1)

A rotary vane compressor comprising a housing with a sleeve, with inlet and outlet openings, an eccentrically mounted rotor, in the grooves of which are plates with thrust bearings and side covers, characterized in that lubricant cavities are located inside the plates, and the compressor side cover and plates are made with the possibility of refueling the plate with lubricant and on the compressor drive pulley there are marks for determining the position of the plates in the compressor.