CN1427167A

CN1427167A - Compressor cylinder component element

Info

Publication number: CN1427167A
Application number: CN 01144438
Authority: CN
Inventors: 金永宗; 河傯勳; 安秉廈
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2001-12-18
Filing date: 2001-12-18
Publication date: 2003-07-02
Anticipated expiration: 2021-12-18
Also published as: CN1189661C

Abstract

A cylinder assembly of compressor is composed of cylinder with a cylindrical internal space divided into two spaces by rotary axle, the first and the second bearings inserted in the bosses at both ends of cylinder, blades inserted in the slits on said bearings and rotating with partition to switch both spaces to sucking and compressing regions, and clutches installed to both ends of cylinder for opening or closing the exhaust outlet.

Description

Compressor cylinder component element

One, technical field:

The present invention relates to a kind of cylinder of compressor assembly, particularly relate to a kind of concentricity that improves cylinder and connection bearing to prevent gas leakage and to reduce the cylinder assembly of dead volume.

Two, background technique:

Generally speaking, compressor is a kind of machinery that gas is compressed, mainly by seal container be installed in the seal container and produce the driving mechanism of power and driven by driving mechanism and gas is carried out the compressor for compressing structure form.According to the kenel of compressing mechanism, compressor can be divided into polytypes such as rotary, reciprocating type and scroll-type, promptly is a kind of schematic representation of compressing mechanism of rotary compressor shown in Fig. 1,2,3.As shown in the figure, the cylinder K of compressing mechanism has an inner space V cylindraceous, and running shaft 20 passes the center of inner space V and inserts among the cylinder assembly K, and cylinder assembly K is provided with aspirating unit 11 and air outlet flue 12 and is communicated with inner space V respectively.

One end of the axial region 21 of running shaft 20 is provided with an isolating plate 30 that has the sinusoidal waveform curved surface, the axial region 21 of running shaft 20 links to each other with driving mechanism M, and isolating plate 30 is arranged in the inner space V of cylinder assembly K and inner space V is divided into the 1st space 13 and the 2nd space 14.The V both sides, inner space of cylinder assembly K connect the

blade

40,41 that is inserted with certain thickness and certain area respectively, keep in touch with the inwall of cylinder assembly inner space V and the outer circumferential face of running shaft 20 respectively the both sides of

blade

40,41, and the end face of

blade

40,41 is kept in touch with isolating plate 30 by spring-loaded; When isolating plate 30 rotates with running shaft 20, convert the 1st space 13 and the 2nd space 14 to suction area 13a, 14a and compressing area 13a, 13b respectively.The both sides of cylinder assembly K link to each other with the engaging and disengaging gear 50 that opens and closes air outlet flue 12 respectively, to discharge the pressurized gas of the 1st, the 2nd space compression district 13b, 14b.

Cylinder assembly K mainly is made of cylinder 10, clutch shaft bearing 60 and second bearing 70.Cylinder 10 has inner space V cylindraceous; Clutch shaft bearing 60 is covered in the top and the supporting rotating shaft 20 of cylinder 10; 70 on second bearing is covered in the bottom and the supporting rotating shaft 20 of cylinder 10.The bearing support 61,71 of first and second bearing 60,70 has certain thickness and area, and the one end is provided with the support 62,67 of projection, and support 62,67 has certain height and its inside is provided with the axis hole 63,67 that is used to insert running shaft 20; The other end of bearing support 61,71 is provided with connection bump portion 64,74, connection bump portion 64,74 has certain height and with the internal diameter respective outer diameter of cylinder 10 inner space V and be provided with the blade slit 65,75 that is used to insert

blade

40,41, the outer circumferential face of the outer end of blade slit 65,75 and connection bump portion 64,74 is consistent; Also offer the exhaust port as air outlet flue 11 on the bearing support 61,71, its side then is provided with the engaging and disengaging gear 50 that is used to open and close exhaust port;

Blade

40,41 inserts in the blade slit 65,75 of bearing support 61,71 respectively and respectively by resilient supporting unit 43 supportings.

The working procedure of above-mentioned compressor structure is as follows:

When 20 rotations of driving mechanism M rotary driving axle, isolating plate 30 promptly rotates in the V of the inner space of cylinder assembly with running shaft 20, the 1st space 13 and the 2nd space 14 convert suction area 13a, 14a and compressing area 13b, 14b respectively to and suck cold media air by each intake duct 11 in the 1st space 13 and the 2nd space 14 to be compressed, and the gas after the compression is through each air outlet flue 12 discharging.

In the above-mentioned compressor structure, the connection bump portion the 64, the 74th of first and second bearing 60,70 that links to each other with cylinder 10, insertion cylinder 10 inside, though this Placement can make first, second bearing 60,70 and cylinder 10 keep concentric, with the leakage that prevents cylinder interior space pressurized gas and the interference of

blade

40,41, but the exhaust port that also makes first, second bearing 60,70 thicken, constitute air outlet flue 12 is simultaneously deepened, thereby increased the dead volume of cylinder interior and expansion losses again, and finally cause the reduction of compression efficiency.

Three, summary of the invention:

Purpose of the present invention promptly is to provide a kind of pressurized gas that not only can prevent to leak, but also can reduce the compressor cylinder component element of dead volume.

To achieve these goals, the present invention utilizes cylinder, clutch shaft bearing, second bearing, blade and engaging and disengaging gear to constitute a kind of compressor cylinder component element.Cylinder is cylindrical shape and has the inner space, and the isolating plate on the running shaft is installed in the inner space and with the inner space and is divided into the 1st space and the 2nd space, and the two ends of cylinder are provided with annular boss; Clutch shaft bearing inserts the boss of cylinder upper end and the inner space of capping cylinder; Second bearing inserts the boss of cylinder lower end and the inner space of capping cylinder; Two blades insert respectively in the clutch shaft bearing and second bearing and along with the rotation of isolating plate and convert the 1st space and the 2nd space of cylinder interior to suction area and compressing area respectively; Engaging and disengaging gear is used to open and close the exhaust port that connects first, second bearing.

Based on above structure, the present invention not only can keep cylinder and first, second bearing accurately concentric, thereby prevents high pressure gas leakage, and can reduce the degree of depth of the thickness and the exhaust port of first, second bearing, thereby reduce the dead volume of cylinder interior and expansion losses again, the raising compression efficiency.

Be described in further detail below in conjunction with the technical characteristics of specific embodiment compressor cylinder component element of the present invention.

Four, description of drawings:

Fig. 1 and Fig. 2 are the front view and the plan views of the compressing mechanism of existing rotary compressor.

Fig. 3 is the decomposing schematic representation of existing rotary compressor for compressing structure.

Fig. 4, Fig. 5 be have compressor cylinder component element of the present invention the front view and the plan view of compressing mechanism.

Fig. 6 is the decomposing schematic representation that has the compressing mechanism of compressor cylinder component element of the present invention.

Five, embodiment:

Shown in Fig. 4,5,6, adopt the compressing mechanism of compressor cylinder component element of the present invention to have a columnar inner space V, be respectively equipped with aspirating unit 83 that is communicated with inner space V and the exhaust port 95,105 that constitutes air outlet flue on the cylinder assembly K, running shaft 20 passes the center of inner space V and inserts among the cylinder assembly K.The axial region 21 of running shaft 20 links to each other with driving mechanism M, and the one end is provided with an isolating plate 30 that has the sinusoidal waveform curved surface, and this isolating plate 30 is arranged among the inner space V of cylinder assembly K and with inner space V and is divided into the 1st space 84 and the 2nd space 85.The both sides of cylinder assembly K are inserted the

blade

40,41 with certain thickness and area respectively, keep in touch with the inwall of cylinder assembly inner space V and the outer circumferential face of running shaft 20 respectively two sides of

blade

40,41, one end face of

blade

40,41 utilizes yielding support and keeps often contacting with isolating plate plate 30, along with the rotation of isolating plate 30,

blade

40,41 is converted to suction area 84a, 85a and compressing area 84b, 85b respectively with the 1st, the 2nd space 84,85.Engaging and disengaging gear 110 is installed in the both sides of cylinder assembly K and is used to open and close air outlet flue 12, to discharge the pressurized gas of the 1st, the

2nd space

84,85 compressing area 84b, 85b.

Cylinder assembly K is made of cylinder 80, clutch shaft bearing 90, second bearing 100.Cylinder 80 is provided with inner space V cylindraceous, and the two ends of cylinder block 81 form the boss 82 of annular.Clutch shaft bearing 90 has bearing support 91, and its external diameter is corresponding with the internal diameter of the boss 82 of cylinder block 81 and have certain thickness; The central authorities of bearing support 91 are provided with the protruding support 92 of certain altitude, are provided with in the support 92 to be used to insert the axle jack 93 that revolves axle 20, and a side of bearing support 91 is provided with the blade slit 94 that is used to insert blade 41.Second bearing 100 has bearing support 101, and its external diameter is corresponding with the internal diameter of the boss 82 of cylinder block 81 and have certain thickness; The central authorities of bearing support 101 are provided with the protruding support 102 of certain altitude, are provided with the axle jack 103 that is used to insert running shaft 20 in the support 102, and bearing support 101 1 sides also are provided with the blade slit 104 that is used to insert blade 40.The internal diameter of cylinder block 81 boss 82 should be greater than the internal diameter of cylinder interior SPACE V.

Clutch shaft bearing 90 inserts the boss 82 of cylinder block 81 upper ends and the upper end of capping cylinder 80 inner space V, and second bearing 100 inserts the boss 82 of cylinder block 81 lower ends and the lower end of capping cylinder 80 inner space V; Have the exhaust port 95 that forms air outlet flue on the bearing support 91 of clutch shaft bearing 90 and the bearing support 101 of second bearing 100, its side is provided with the engaging and disengaging gear 110 that is used to open and close exhaust port 95; One side of cylinder 80 is provided with the aspirating unit 83 that sucks gas; Be inserted with

blade

40,41 respectively in the blade slit 94,104 of first, second bearing 90,100,

blade

40,41 is by elastic bearing mechanism 110 supportings.

The working procedure of the compressing mechanism of employing compressor cylinder component element of the present invention is identical with the compressing mechanism working procedure shown in Fig. 1-3, so no longer describe in detail.In the present invention, the clutch shaft bearing 90 of supporting rotating shaft 20 and second turn round and look at 100 and insert in the boss 82 at cylinder block 81 two ends respectively and V two ends, capping cylinder 80 inner space, not only can make cylinder 80 and first, second bearing 90,100 keep accurately concentric, thereby the pressurized gas that prevent cylinder 80 inner space V are to external leakage, and can reduce the thickness of first, second bearing 90,100 and run through first, second bearing 90,100 and the degree of depth of the exhaust port 95,105 that forms, thereby reduce cylinder dead volume and expansion losses again, the raising compression efficiency.

Claims

1, a kind of compressor cylinder component element is made of cylinder, clutch shaft bearing, second bearing, blade and engaging and disengaging gear; Cylinder has inner space cylindraceous, and the isolating plate of running shaft inserts in the cylinder interior space and with the inner space and is divided into the 1st space and the 2nd space; The clutch shaft bearing and second Bearing Installation are at the two ends of cylinder and be provided with the exhaust port that forms air outlet flue, and running shaft inserts respectively in the axle jack of its central authorities; Blade inserts in the blade slit of the clutch shaft bearing and second bearing respectively and can the 1st, 2 spaces of cylinder be converted to suction area and compressing area respectively along with the rotation of isolating plate; Be used to open the two ends that the engaging and disengaging gear of exhaust port sets up cylinder separately; The invention is characterized in that the two ends of described cylinder are respectively equipped with the boss of annular, first, second bearing inserts the boss and the capping cylinder interior space at cylinder two ends respectively.

2, compressor cylinder component element according to claim 1 is characterized in that the external diameter of described first, second bearing is corresponding with cylinder boss internal diameter.

3, compressor cylinder component element according to claim 1 is characterized in that described cylinder boss internal diameter is greater than cylinder interior space internal diameter.