CN201521444U - Whirl air compressor for changing support structure of movable disc - Google Patents
Whirl air compressor for changing support structure of movable disc Download PDFInfo
- Publication number
- CN201521444U CN201521444U CN2009202681308U CN200920268130U CN201521444U CN 201521444 U CN201521444 U CN 201521444U CN 2009202681308 U CN2009202681308 U CN 2009202681308U CN 200920268130 U CN200920268130 U CN 200920268130U CN 201521444 U CN201521444 U CN 201521444U
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- moving plate
- air compressor
- frame
- movable disc
- bent axle
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Abstract
A whirl air compressor for changing the support structure of a movable disc comprises a rack, a fixed disc, a movable disc, a crankshaft, a shaft sealing element, an air suction hole, and an air exhaust hole, wherein the fixed disc is fixed on the rack by a fastener; the movable disc and the fixed disc are combined to form a compression cavity of air; an eccentric part of the crankshaft is inserted into a wheel hub of the movable disc; the crankshaft is installed in the rack by a main bearing and a supplementary bearing; a bearing is arranged between the eccentric part of the crankshaft and the wheel hub of the movable disc; the movable disc is angularly fixed on the rack; a cylinder part is arranged at the central part of the front end of the rack; the wheel hub of the movable disc is driven by the eccentric part of the crankshaft to move horizontally around the circumference in the cylinder part; an annular groove is arranged between the cylinder part and a shell of the rack; and the front end of the cylinder part is annularly provided with a support convex ring so as to axially support the movable disc. The whirl air compressor has simple and reasonable structure and stable and reliable work, avoids the hidden trouble of the deformation of the movable disc of the compressor, ensures the air tightness of a whirl disc, enhances the product competitively, and can be widely applied to various whirl air compressors.
Description
Technical field
The utility model relates to the scroll air compressor of a kind of scroll air compressor, particularly a kind of oil spout, is a kind of scroll air compressor that changes the Moving plate supporting structure specifically.
Background technique
Scroll air compressor with its efficient height, noise is low, volume is little, help energy-conservation and protection advantage such as environment and be widely used in the compressed-air actuated occasions of industry needs such as industry, agricultural, communications and transportation.Scroll air compressor mainly moves part whirlpool dish and has only dirty to close, and do not produce wearing and tearing, thereby the life-span is longer than piston type, screw compressor, is pneumatic machinery ideal power source.In scroll air compressor, main operation part whirlpool dish is divided into Moving plate and quiet dish, establish the vortex sheet in Moving plate and the quiet dish, usually, being bonded to each other by Moving plate and quiet dish forms compression chamber, when Moving plate is driven when certain circular path is done translation by bent axle, Moving plate vortex sheet moves relative to quiet dish vortex sheet, promptly move and change its volume, thereby suck, compress, discharge, finish compressed-air actuated process by both formed compression chambers.
Fig. 1 illustrates the general configuration of existing scroll air compressor, quiet dish 1 ' and Moving plate 2 ' combination formation internal compression chamber, quiet dish 1 ' be fixed on frame 6 ' on, Moving plate 2 ' frame 6 ' support platform on, bent axle 12 ' eccentric part insert Moving plate 2 ' wheel hub in.Compressor is put structure for crouching, and makes partition ring 3 ' motion vertically.Bent axle 12 ' by main bearing 5 ' and supplementary bearing 7 ' frame 6 ' inner chamber, frame 6 ' end assembling bonnet 10 ', before have mechanical seal 11 ', at bent axle 12 ' end assembling belt pulley 9 ' and secondary equilibrium block 8a ', 8b ', main equilibrium block 4 ' frame 6 ' in, establish between Moving plate wheel hub and crankshaft eccentric portion bearing 13 '.
As shown in Figure 1, frame 6 ' the supporting outer ledge of Moving plate 2 ' dorsal part end plate, whole Moving plate core is unsettled fully, when compressor operating, air enters the compression chamber in the dish of whirlpool, along with Moving plate 2 ' motion, air is compressed, pressurized gas in the compression chamber know from experience to one of Moving plate 2 ' generation vertically with the axial gas power of quiet dish 1 ' separate, under the effect of axial force, Moving plate 2 ' be compressed against on the support convex of frame is because the force action of the axial gas power of each chamber is near the center of Moving plate, and the support convex of frame supports the end plate outer ledge area of Moving plate, the distortion of Moving plate will be bigger, and the center distortion is maximum, causes moving, gap between at the bottom of quiet disk center position molded lines tooth top and the tooth increases, finally cause internal leakage to increase, influenced the performance of compressor.While, near the partial surface the support convex inboard of frame was pressed bigger owing to the distortion of Moving plate, therefore caused near the position with the Moving plate correspondence, support convex inboard of frame to produce wearing and tearing easily, had influenced the reliability of compressor.
Summary of the invention
The technical problems to be solved in the utility model is, in existing scroll air compressor, technological deficiency yielding, internal leakage that the Moving plate supporting structure exists, provide a kind of simple and reasonable, stable and reliable operation to change the scroll air compressor of Moving plate supporting structure, avoid the hidden danger of compressor Moving plate distortion, guarantee whirlpool dish tightness, product cost is further reduced, strengthen product competitive ability, to overcome deficiency of the prior art.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of scroll air compressor that changes the Moving plate supporting structure, comprise frame, quiet dish, Moving plate, bent axle, Sealing and air-breathing, relief opening, be fixed on the frame with fastening piece on the quiet dish, combine the compression chamber that forms air with quiet dish by Moving plate; The eccentric part of bent axle inserts in the wheel hub of Moving plate, and bent axle is installed in the frame with main bearing and supplementary bearing, establishes bearing between the wheel hub of the eccentric part of bent axle and Moving plate; Described Moving plate angle is positioned on the frame, cylindrical part is established in the center portion of the front end of described frame, the wheel hub of described Moving plate is done in cylindrical part under the driving of crankshaft eccentric portion around circular translational, be annular groove between the housing of described cylindrical part and frame, establish the support collar of annular with the described Moving plate of axially support at the front end of cylindrical part.
In the scroll air compressor of above-mentioned change Moving plate supporting structure, on the bottom land anchor ring of annular groove, partition ring is set, the semicircle position of the upper surface of described partition ring and lower surface respectively is provided with a pair of protruding key respectively, two pairs of orthogonal distributions of protruding key, on the bottom surface of the bottom land anchor ring of annular groove and Moving plate a pair of keyway is set respectively, the protruding key of described partition ring places respectively in the keyway of annular groove 54 bottom land anchor rings and Moving plate bottom surface.
In the scroll air compressor of above-mentioned change Moving plate supporting structure, the internal diameter of support collar is greater than 1/3 of the Moving plate diameter, and the external diameter of support collar is less than 3/4 of the Moving plate diameter.
In the scroll air compressor of above-mentioned change Moving plate supporting structure, described frame comprises forebay and rear bay, and the wheel hub of described Moving plate and the eccentric part of bent axle and main equilibrium block are contained in the forebay.
In the scroll air compressor of above-mentioned change Moving plate supporting structure, main bearing is arranged in the cylindrical part, and main bearing is arranged between crankshaft eccentric portion and the main equilibrium block.
In the scroll air compressor of above-mentioned change Moving plate supporting structure, supplementary bearing is provided with the terminal part of rear bay.
In the scroll air compressor of above-mentioned change Moving plate supporting structure, establish bonnet, shaft seal is housed in the bonnet at the end of rear bay.
In the scroll air compressor of above-mentioned change Moving plate supporting structure, secondary equilibrium block is arranged on the end of bent axle, and described end stretches out outside the seal chamber of being made up of shroud, forebay, rear bay, bonnet.
The beneficial effects of the utility model are: by forebay being supported the change of the position of Moving plate, improved the stress of Moving plate greatly, the support force that makes Moving plate moves to position near the center from marginal position, impel the end plate deformation minimum of Moving plate, reduce internal leakage to the utmost, improve compressor performance, the supporting structure advantages of simple of the utility model forebay, adjust by supporting structure, make the scroll air compressor more stable work reliable Moving plate.
Description of drawings
Fig. 1 is the structural representation of the scroll air compressor of prior art;
Fig. 2 is the scroll air compressor structural representation of change Moving plate supporting structure described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, and accompanying drawing 2 each parts of mesoscale eddies air compressor are numbered as follows:
Bonnet 8 gland seal assemblies 81 secondary equilibrium block 9 quiet dish set screws 10
The air-breathing steering channel 12 that intakeport 11 compression chambers of quiet dish are communicated with
Bearing 14 main bearings 15 supplementary bearings 17 forebay shells 51
Forebay cylindrical part 52 support collars 53 grooves 54
In the prior art, the structure of scroll air compressor as shown in Figure 1, by quiet dish 1 ', Moving plate 2 ', bent axle 12 ', frame 6 ', bonnet 10 ' composition, quiet dish 1 ' form the compression chamber of an air with Moving plate 2 ' combine, quiet dish 1 ' be fixed on frame 6 ' on, bent axle 12 ' be assemblied in frame 6 ' in, by main bearing 5 ' with supplementary bearing 7 ' supporting, axis body one end is an eccentric part, insert in the wheel hub of Moving plate, between eccentric part and wheel hub be bearing 13 ', equilibrium block 4 ' be arranged on eccentric part and main bearing 5 ' between, in frame, be provided with and dodge the rotation that the space is enough to hold equilibrium block.The axially locating of Moving plate is limited by the support platform of quiet dish and frame, support platform be located at frame 6 ' end inner chamber outer rim, support Moving plate 2 ' the outer rim of the end plate of trying to get to the heart of a matter.Under compressor normal operation situation, pressurized gas in the compression chamber know from experience to one of Moving plate 2 ' generation vertically with the axial gas power of quiet dish 1 ' separate, therefore Moving plate 2 ' be compressed against frame 6 ' support platform on, because the force action of the axial gas power of each chamber is near the center of Moving plate, if frame 6 ' support platform support the border district of Moving plate, cause Moving plate 2 ' distortion after the long-time running, and the center distortion is maximum, cause moving, gap between at the bottom of quiet disk center position molded lines tooth top and the tooth increases, finally cause internal leakage to increase, influenced the performance of compressor.Simultaneously because Moving plate 2 ' distortion, near the partial surface frame support platform inboard is pressed bigger, therefore causes near the support platform inboard of frame easily and the position of Moving plate 2 ' correspondence produces and weares and teares, and has influenced the reliability of compressor.
The utility model is in order to solve the problem of above-mentioned existence, compressor arrangement is made improvements, as shown in Figure 2, forebay 5 centers have been designed a cylindrical part 52 in the utility model, Moving plate wheel hub 21 can move therein and not produce interference with forebay 5, the top of cylindrical part 52 is that the projection of an annular is the support collar 53 of forebay, thus, the support collar of frame is the center of close Moving plate, distortion was minimum after Moving plate 2 was compressed the axial force of gas, reduced the internal leakage of pressurized gas to greatest extent, improved the performance of compressor, the face pressure ratio of forebay support collar 53 is more even simultaneously, and reliability is improved.
The internal diameter of support collar 53 is greater than 1/3 of the Moving plate diameter among the design, and the external diameter of support collar 53 can farthest reduce the distortion of Moving plate thus less than 3/4 of the Moving plate diameter, optimize the stressed of support collar, reduce friction, make performance optimization, and guarantee that Moving plate moves stably.
The installation that Moving plate 2 cooperates with quiet dish 1 forms an air compression chamber, Moving plate 2 slidably is supported on the support collar 53 of forebay, the front end of forebay 5 is a groove 54 at housing 51 and 52 of cylindrical part, partition ring 3 is installed between Moving plate 2 base plates and the groove 54, and the upper surface of partition ring 3 has a pair of protruding key, and both lines pass the center of ring, lower surface at partition ring 3 also has a pair of protruding key, equally, both lines pass the center of ring, two pairs of orthogonal (not shown)s of protruding key.All offering the keyway (not shown) that can cooperate installation cross ring key portion on the Moving plate 2 base plate end faces and on the groove 54, Moving plate 2 has guaranteed the angle location and installation of Moving plate 2 with forebay 5 by the connection of partition ring 3.
The center of rear bay 7 offers the center hole than the slightly larger in diameter of bent axle corresponding position, and supplementary bearing 17 is installed in the rear portion of rear bay 7.Thus, because the adjacent crankshaft eccentric of main bearing 15 portion, supplementary bearing 17 is away from main bearing 15, distance between major and minor bearing is increased, thereby the stressed of bearing will significantly reduce, and improve the life-span of bearing and improve reliability, therefore when design, can select small-sized bearing, reduced the diameter of bearing, reduced cost, simultaneously because the integral arrangement compactness, make under the situation that guarantees the compressor operation balance, major and minor equilibrium block weight saving has reduced the cost of product, has improved competitive ability.
Claims (7)
1. scroll air compressor that changes the Moving plate supporting structure, comprise frame, quiet dish (1), Moving plate (2), bent axle (4), Sealing and air-breathing, relief opening, quiet dish (1) is gone up and is fixed on the frame with fastening piece, combines the compression chamber that forms air by Moving plate (2) with quiet dish (1); The eccentric part of bent axle (4) inserts in the wheel hub of Moving plate (2), bent axle is installed in the frame with main bearing (15) and supplementary bearing (17), between the wheel hub of the eccentric part of bent axle and Moving plate, establish bearing (13), it is characterized in that: described Moving plate (2) angle is positioned on the frame, cylindrical part (52) is established in the center portion of the front end of described frame, the wheel hub of described Moving plate (2) is being done in cylindrical part (52) under the driving of crankshaft eccentric portion around circular translational, be annular groove (54) between the housing (51) of described cylindrical part (52) and frame, establish the support collar (53) of annular with the described Moving plate of axially support (2) at the front end of cylindrical part (52).
2. according to the scroll air compressor of the described change Moving plate of claim 1 supporting structure, it is characterized in that: partition ring (3) is set on the bottom land anchor ring of annular groove (54), the upper surface of described partition ring (3) and the semicircle position of lower surface respectively are provided with a pair of protruding key respectively, two pairs of orthogonal distributions of protruding key, on the bottom surface of the bottom land anchor ring of annular groove (54) and Moving plate (2) a pair of keyway is set respectively, the protruding key of described partition ring (3) places respectively in the keyway of annular groove (54) bottom land anchor ring and Moving plate (2) bottom surface.
3. according to the scroll air compressor of the described change Moving plate of claim 2 supporting structure, it is characterized in that: the internal diameter of support collar (53) is greater than 1/3 of Moving plate diameter, and the external diameter of support collar (53) is less than 3/4 of Moving plate diameter.
4. according to the scroll air compressor of claim 1 or 2 or 3 described change Moving plate supporting structures, it is characterized in that: described frame comprises forebay (5) and rear bay (7), and the eccentric part and the main equilibrium block (6) of the wheel hub of described Moving plate (2) and bent axle (4) are contained in the forebay (5).
5. according to the scroll air compressor of the described change Moving plate of claim 4 supporting structure, it is characterized in that: supplementary bearing (17) is provided with the terminal part of rear bay (7).
6. according to the scroll air compressor of the described change Moving plate of claim 5 supporting structure, it is characterized in that: establish bonnet (8) at the end of rear bay (7), shaft seal is housed in the bonnet.
7. according to the scroll air compressor of the described change Moving plate of claim 6 supporting structure, it is characterized in that: secondary equilibrium block (9) is arranged on the end of bent axle, and described end stretches out outside the seal chamber of being made up of shroud (1), forebay (5), rear bay (7), bonnet (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202681308U CN201521444U (en) | 2009-10-31 | 2009-10-31 | Whirl air compressor for changing support structure of movable disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202681308U CN201521444U (en) | 2009-10-31 | 2009-10-31 | Whirl air compressor for changing support structure of movable disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201521444U true CN201521444U (en) | 2010-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202681308U Expired - Fee Related CN201521444U (en) | 2009-10-31 | 2009-10-31 | Whirl air compressor for changing support structure of movable disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201521444U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103635693A (en) * | 2011-07-01 | 2014-03-12 | Lg电子株式会社 | Scroll compressor |
| CN104047862A (en) * | 2014-07-03 | 2014-09-17 | 湖南联力精密机械有限公司 | Vortex air compressor with highly coaxial primary and auxiliary bearings |
| CN105673082A (en) * | 2016-01-19 | 2016-06-15 | 上海理工大学 | Scroll expander for micro-organic rankine cycle |
-
2009
- 2009-10-31 CN CN2009202681308U patent/CN201521444U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103635693A (en) * | 2011-07-01 | 2014-03-12 | Lg电子株式会社 | Scroll compressor |
| CN103635693B (en) * | 2011-07-01 | 2016-05-11 | Lg电子株式会社 | Screw compressor |
| CN104047862A (en) * | 2014-07-03 | 2014-09-17 | 湖南联力精密机械有限公司 | Vortex air compressor with highly coaxial primary and auxiliary bearings |
| CN105673082A (en) * | 2016-01-19 | 2016-06-15 | 上海理工大学 | Scroll expander for micro-organic rankine cycle |
| CN105673082B (en) * | 2016-01-19 | 2018-01-26 | 上海理工大学 | Miniature organic Rankine bottoming cycle scroll expander |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20181031 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |