CN105201826A - Oil injection vortex air compressor of back pressure structure - Google Patents
Oil injection vortex air compressor of back pressure structure Download PDFInfo
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- CN105201826A CN105201826A CN201510611774.2A CN201510611774A CN105201826A CN 105201826 A CN105201826 A CN 105201826A CN 201510611774 A CN201510611774 A CN 201510611774A CN 105201826 A CN105201826 A CN 105201826A
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- orbiter
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Abstract
The invention relates to an oil injection vortex air compressor of a back pressure structure. The oil injection vortex air compressor comprises a fixed vortex plate, a movable vortex plate, a crossed slide ring, a crankshaft, a machine frame, a main counterbalance, an auxiliary bearing pressure ring, a rear cover, a belt wheel, an eccentric bearing, a main bearing and an auxiliary bearing. The movable vortex plate and the fixed vortex plate are meshed to form a compression cavity. The crankshaft is installed in the machine frame through a main bearing and an auxiliary bearing. The eccentric part of the crankshaft is installed on a hub of the movable vortex plate. The crankshaft and the movable vortex plate are fixedly installed through the eccentric bearing. A back pressure cavity is formed by an inner cavity space between the back side of the movable vortex plate and the machine frame. An air compression cavity is formed by a gap between the front side of the fixed vortex plate and the movable vortex plate. At least one back pressure through hole for making the back pressure cavity communicated with the air compression cavity is formed in the movable vortex plate. An oil outlet and an oil supply hole are formed in the machine frame. An oil return passageway is an oil return way which is arranged in the side wall of the machine frame and makes an air suction pressure cavity communicated with the back pressure cavity. The oil injection vortex air compressor greatly improves compression efficiency and is more stable in running.
Description
Technical field
The present invention relates to a kind of compressor, be specifically related to a kind of between Moving plate dorsal part and frame, do not adopt the oil spout scroll air compressor of seal construction back pressure cavity structure.
Background technique
Scroll air compressor is high with its efficiency, noise is low, volume is little, be conducive to the advantages such as energy-conservation and protection of the environment and be widely used in the industries such as industry, agricultural, communications and transportation needing compressed-air actuated occasion.Scroll air compressor mainly runs part whirlpool dish and only has engagement, and do not produce wearing and tearing, thus the life-span is longer than piston type, screw compressor, is pneumatic machinery ideal power source.In scroll air compressor, main operation part scroll is divided into orbiter and fixed scroll, vortex sheet is established in orbiter and fixed scroll, usually, be bonded to each other by orbiter and fixed scroll and form compression chamber, when orbiter does translation by bent axle drive along certain circular path, orbiter vortex sheet moves relative to fixed scroll vortex sheet, namely the compression chamber formed by both moves and changes its volume, thus carries out sucking, compresses, discharges, and completes compressed-air actuated process.
The fixed scroll of scroll air compressor and orbiter have axial clearance and radial clearance when running, and realize the Effec-tive Function of scroll air compressor, major measure is that when ensureing compressor operating in theory, axial clearance and radial clearance are zero.Gap when realizing fixed scroll and orbiter operation is zero, and current technology adopts axial elasticity technology and radial compliance technology.Its mode is the scroll air compressor adopting fixed radial gap, radial clearance between its fixed scroll and orbiter (gap between namely at the bottom of vortex sheet tooth top and tooth) is main by processing and assembling guarantee, for not occurring because thermal expansion and pressure distortion cause the machinery between orbiter and fixed scroll stuck when ensureing scroll air compressor running, radial clearance needs to set certain value, leakage radial many in compression process will be caused like this, cause the decline of compression efficiency.In the compressor arrangement in such fixed radial gap, improve compression efficiency, must reduce radial clearance, the probability so just causing machinery stuck rises.And, the compressor arrangement in fixed radial gap, very high to the requirement of the precision of processing, want the uniformity ensureing radial clearance, need the accuracy of form and position improving processing, needing when assembling to adopt group technology, so just causing the rising of processing and assembly cost, finally cause compressor cost increase, the competitive ability of compressor declines.
Summary of the invention
The object of the invention is, in order to solve existing compressor, there is above-mentioned deficiency, a kind of oil spout scroll air compressor of back-pressure structure is provided.
Object of the present invention can be achieved through the following technical solutions:
An oil spout scroll air compressor for back-pressure structure, comprises fixed scroll, orbiter, cross slip-ring, bent axle, frame, main equilibrium block, supplementary bearing pressure ring, bonnet, belt pulley, capacity eccentric bearing, main bearing and supplementary bearing, described orbiter engages with fixed scroll and forms compression chamber, described bent axle is arranged in frame with main bearing and supplementary bearing, the eccentric part of bent axle is arranged on the wheel hub of orbiter, by capacity eccentric bearing by bent axle and orbiter fixed installation, intracavity space between the dorsal part of described orbiter and frame forms back pressure cavity, space between the front side of described fixed scroll and orbiter forms air compressing chamber, described orbiter is at least provided with a back pressure through hole be communicated between back pressure cavity and air compressing chamber, described frame is provided with oil outlet and oil supply hole, described drainback passage is be located in frame side wall the oil return circuit being communicated in suction plenum and back pressure cavity, and described back pressure cavity is by adjustment frame oil supply hole, the size of drainback passage and orbiter back pressure through hole adjusts the gas pressure of back pressure cavity.
Object of the present invention can also be achieved through the following technical solutions:
Further, described back pressure through hole is located at the axle sleeve hole edge in orbiter, near orbiter central position.
Further, described back pressure through hole is distributed in the vortex sheet lateral location of orbiter.
Further, described fixed scroll one side, between orbiter side and the inner chamber of frame, form suction plenum, suction plenum is provided with a drainback passage and communicates with back pressure cavity.
Further, constant clearance is maintained between described orbiter and frame.
Further, the steady state value of described constant clearance is 0.02-0.1mm.
Beneficial effect of the present invention:
Intracavity space between the dorsal part of orbiter of the present invention and frame forms back pressure cavity, space between the front side of described fixed scroll and orbiter forms air compressing chamber, described orbiter is at least provided with a back pressure through hole be communicated between back pressure cavity and air compressing chamber.By structure back pressure cavity, when making compressor operation, orbiter moves axially and is closely close to fixed scroll, effectively eliminates radial leakage gap, because radial leakage gap is the topmost factor affecting compression efficiency, therefore, the present invention makes compression efficiency be greatly improved.
2, in the present invention, there is back pressure through hole owing to adopting, so without the need to using gasket structure back pressure cavity, eliminating the impact of sealing material on unfailing performance, improve the operational reliability of compressor.
3, structure of the present invention is simple, has back pressure through hole owing to adopting, and requires to decline, and can cancel assemble packets, can improve work efficiency and packaging efficiency, compressor cost is declined the accuracy of form and position of the processing of orbiter, fixed scroll and frame.
Accompanying drawing explanation
Fig. 1 is the overall distribution schematic diagram of compressor arrangement of the present invention.
Fig. 2 is compressor frame structural representation of the present invention.
Fig. 3 is compressor orbiter structural representation of the present invention.
Fig. 4 is compressor orbiter front view of the present invention.
Fig. 5 is that compressor orbiter tilting moment of the present invention is with exhaust pressure variation diagram.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Referring to figs. 1 through a kind of shown in Fig. 4 oil spout scroll air compressor of back-pressure structure, comprise fixed scroll 1, orbiter 2, cross slip-ring 3, bent axle 4, frame 5, main equilibrium block 6, supplementary bearing pressure ring 7, bonnet 8, belt pulley 9, capacity eccentric bearing 15, main bearing 16 and supplementary bearing 17, described orbiter 2 engages with fixed scroll 1 and forms compression chamber, described bent axle 4 is arranged in frame 5 with main bearing 16 and supplementary bearing 17, the eccentric part of bent axle 4 is arranged on the wheel hub of orbiter 2, by capacity eccentric bearing 15, bent axle 4 and orbiter 2 are fixedly mounted, intracavity space between the dorsal part of described orbiter 2 and frame 5 forms back pressure cavity 100, space between the front side of described fixed scroll 1 and orbiter 2 forms air compressing chamber 400, described orbiter 2 is at least provided with a back pressure through hole 2-1 be communicated between back pressure cavity 100 and air compressing chamber 400.
In embodiment, described back pressure through hole 2-1 is located at the axle sleeve hole 2-2 edge in orbiter 2, near orbiter 2 central position.Described back pressure through hole 2-1 is distributed in vortex sheet 21 lateral location of orbiter 2.Described fixed scroll 1 one side, form suction plenum 200 between orbiter 2 side and the inner chamber of frame 5 and in suction plenum 200, be provided with a drainback passage 5-2 communicate with back pressure cavity 100.Maintain constant clearance 302 between described orbiter 2 and frame 5, the steady state value of this constant clearance 302 is 0.02-0.1mm.Described frame is provided with oil outlet 5-1 and oil supply hole 5-4, described drainback passage 5-2 is located at the oil return circuit being communicated in suction plenum 200 and back pressure cavity 100 in frame 5 sidewall, and described back pressure cavity 100 adjusts the gas pressure of back pressure cavity 100 by the size of adjustment frame oil supply hole 5-4, drainback passage 5-2 and orbiter back pressure through hole 2-1.
In the present invention, as Figure 1-4, compressor frame 5 is provided with frame oil supply hole 5-4, lubricant oil enters frame rear portion and front portion by oil supply hole 5-4 respectively by the passage at frame rear portion and crankshaft center portion, lubricate bearing and the motive position such as supplementary bearing 17, main bearing 16, capacity eccentric bearing 15 and partition ring 3 respectively, lubricant oil collects in bottom frame, in back pressure cavity 100 gas pressure effect under, be provided with oil outlet 5-1 by frame 5 and drainback passage 5-2 enters suction plenum 200, plug 5-3 prevents oil leak from going out outside.When the present invention uses, by the size of setting oil supply hole 5-4, the size of drainback passage 5-2, and by setting the size of the back pressure through hole 2-1 on orbiter 2, back pressure cavity 100 is made to keep certain gas pressure when compressor operation, under the effect of this back pressure cavity 100 pressure, orbiter 2 is closely close to fixed scroll 1, radial clearance 301 at the bottom of radial clearance 300 at the bottom of orbiter tooth and between fixed scroll tooth depth and fixed scroll tooth and between orbiter tooth depth remains small―gap suture, and orbiter 2 and frame 5 supporting surface gap 302 are a steady state value.Thus, orbiter 1 of the present invention is moved axially when compressor operation and is close to fixed scroll 1 instead of deviates from fixed scroll 1, therefore can effectively eliminate radial leakage gap.
When the present invention applies, as shown in Figure 5, the pressure of back pressure cavity can adjust according to exhaust pressure operating mode, when using higher gas exhaust pressure X, now, because the tilting moment Y of orbiter 2 strengthens, need the pressure strengthening back pressure cavity 100, also being the stability ensureing Moving plate running, when using exhaust pressure to raise, needing tilting moment curve Z-direction Y-axis negative direction is moved.
Owing to eliminating radial clearance, compression efficiency is greatly improved; Avoid thus using gasket structure back pressure cavity, eliminate the impact of sealing material on reliability and performance, improve the reliability of compressor, and simplify the overall structure of compressor thus, require to decline to the accuracy of form and position of the processing of orbiter, fixed scroll and frame, and can assemble packets be eliminated, work efficiency and packaging efficiency can be improved, compressor cost is declined.The present invention has the advantages that compression efficiency is high, assembling is simple and cost is low.
Claims (6)
1. the oil spout scroll air compressor of a back-pressure structure, comprise fixed scroll (1), orbiter (2), cross slip-ring (3), bent axle (4), frame (5), main equilibrium block (6), supplementary bearing pressure ring (7), bonnet (8), belt pulley (9), capacity eccentric bearing (15), main bearing (16) and supplementary bearing (17), described orbiter (2) engages with fixed scroll (1) and forms compression chamber, described bent axle (4) is arranged in frame (5) with main bearing (16) and supplementary bearing (17), the eccentric part of bent axle (4) is arranged on the wheel hub of orbiter (2), by capacity eccentric bearing (15) by bent axle (4) and orbiter (2) fixed installation, it is characterized in that: the intracavity space between the dorsal part of described orbiter (2) and frame (5) forms back pressure cavity (100), space between the front side of described fixed scroll (1) and orbiter (2) forms air compressing chamber (400), described orbiter (2) is at least provided with a back pressure through hole (2-1) be communicated between back pressure cavity (100) and air compressing chamber (400), described frame is provided with oil outlet (5-1) and oil supply hole (5-4), described drainback passage (5-2) is for being located at the oil return circuit being communicated in suction plenum (200) and back pressure cavity (100) in frame (5) sidewall, and described back pressure cavity (100) adjusts the gas pressure of back pressure cavity (100) by the size adjusting frame oil supply hole (5-4), drainback passage (5-2) and orbiter back pressure through hole (2-1).
2. the oil spout scroll air compressor of a kind of back-pressure structure according to claim 1, it is characterized in that: described back pressure through hole (2-1) is located at axle sleeve hole (2-2) edge in orbiter (2), near orbiter (2) central position.
3. the oil spout scroll air compressor of a kind of back-pressure structure according to claim 1, is characterized in that: described back pressure through hole (2-1) is distributed in vortex sheet (21) lateral location of orbiter (2).
4. the oil spout scroll air compressor of a kind of back-pressure structure according to claim 1, it is characterized in that: described fixed scroll (1) side, between orbiter (2) side and the inner chamber of frame (5), form suction plenum (200), suction plenum (200) is provided with a drainback passage (5-2) and communicates with back pressure cavity (100).
5. the oil spout scroll air compressor of a kind of back-pressure structure according to claim 1, is characterized in that: maintain constant clearance (302) between described orbiter (2) and frame (5).
6. the oil spout scroll air compressor of a kind of back-pressure structure according to claim 5, is characterized in that: the steady state value of described constant clearance (302) is 0.02-0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510611774.2A CN105201826B (en) | 2015-09-23 | 2015-09-23 | A kind of oil spout scroll air compressor of back-pressure structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510611774.2A CN105201826B (en) | 2015-09-23 | 2015-09-23 | A kind of oil spout scroll air compressor of back-pressure structure |
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| CN105201826A true CN105201826A (en) | 2015-12-30 |
| CN105201826B CN105201826B (en) | 2018-08-24 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676261A (en) * | 2017-10-19 | 2018-02-09 | 苏州英华特涡旋技术有限公司 | A kind of screw compressor with lubrication system |
| KR20180072302A (en) * | 2016-12-21 | 2018-06-29 | 삼성전자주식회사 | Scroll compressor |
| CN110671321A (en) * | 2019-09-11 | 2020-01-10 | 河北昊方新能源科技有限公司 | Oil-free vortex brake booster pump |
| DE102020109556A1 (en) | 2020-04-06 | 2021-10-07 | Hanon Systems | Device for compressing a gaseous fluid |
| CN114962259A (en) * | 2022-05-24 | 2022-08-30 | 江苏太平洋精锻科技股份有限公司 | Back pressure mechanism of air conditioner compressor of electric automobile |
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| US4861245A (en) * | 1986-08-22 | 1989-08-29 | Hitachi, Ltd. | Scroll compressor with sealed pressure space biasing the orbiting scroll member |
| CN1132826A (en) * | 1994-10-24 | 1996-10-09 | 株式会社日立制作所 | Vortex-type compressor |
| CN201714672U (en) * | 2010-05-28 | 2011-01-19 | 湖南云箭集团有限公司 | Cooling lubricating oil oilway structure of vortex type air compressor main frame |
| CN104747438A (en) * | 2013-12-30 | 2015-07-01 | 上海三电贝洱汽车空调有限公司 | Scroll compressor |
| CN204961293U (en) * | 2015-09-23 | 2016-01-13 | 广州广涡压缩机有限公司 | Oil spout vortex air compressor of backpressure structure |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4861245A (en) * | 1986-08-22 | 1989-08-29 | Hitachi, Ltd. | Scroll compressor with sealed pressure space biasing the orbiting scroll member |
| CN1132826A (en) * | 1994-10-24 | 1996-10-09 | 株式会社日立制作所 | Vortex-type compressor |
| CN201714672U (en) * | 2010-05-28 | 2011-01-19 | 湖南云箭集团有限公司 | Cooling lubricating oil oilway structure of vortex type air compressor main frame |
| CN104747438A (en) * | 2013-12-30 | 2015-07-01 | 上海三电贝洱汽车空调有限公司 | Scroll compressor |
| CN204961293U (en) * | 2015-09-23 | 2016-01-13 | 广州广涡压缩机有限公司 | Oil spout vortex air compressor of backpressure structure |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180072302A (en) * | 2016-12-21 | 2018-06-29 | 삼성전자주식회사 | Scroll compressor |
| CN110114578A (en) * | 2016-12-21 | 2019-08-09 | 三星电子株式会社 | Scroll compressor |
| US11193476B2 (en) | 2016-12-21 | 2021-12-07 | Samsung Electronics Co., Ltd. | Scroll compressor |
| KR102549777B1 (en) * | 2016-12-21 | 2023-06-30 | 삼성전자주식회사 | Scroll compressor |
| CN107676261A (en) * | 2017-10-19 | 2018-02-09 | 苏州英华特涡旋技术有限公司 | A kind of screw compressor with lubrication system |
| CN110671321A (en) * | 2019-09-11 | 2020-01-10 | 河北昊方新能源科技有限公司 | Oil-free vortex brake booster pump |
| DE102020109556A1 (en) | 2020-04-06 | 2021-10-07 | Hanon Systems | Device for compressing a gaseous fluid |
| DE102020109556B4 (en) | 2020-04-06 | 2022-10-06 | Hanon Systems | Devices for compressing a gaseous fluid and methods for operating the devices |
| CN114962259A (en) * | 2022-05-24 | 2022-08-30 | 江苏太平洋精锻科技股份有限公司 | Back pressure mechanism of air conditioner compressor of electric automobile |
| CN114962259B (en) * | 2022-05-24 | 2023-12-05 | 江苏太平洋精锻科技股份有限公司 | Back pressure mechanism of electric automobile air conditioner compressor |
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|---|---|
| CN105201826B (en) | 2018-08-24 |
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