CN105952649A - Compressor - Google Patents
Compressor Download PDFInfo
- Publication number
- CN105952649A CN105952649A CN201610447351.6A CN201610447351A CN105952649A CN 105952649 A CN105952649 A CN 105952649A CN 201610447351 A CN201610447351 A CN 201610447351A CN 105952649 A CN105952649 A CN 105952649A
- Authority
- CN
- China
- Prior art keywords
- compressor
- pressure
- bearing
- base bearing
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/50—Bearings
- F04C2240/54—Hydrostatic or hydrodynamic bearing assemblies specially adapted for rotary positive displacement pumps or compressors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention discloses a compressor. The compressor comprises a housing, a motor and a compressing mechanism, wherein an oil bath is arranged at the bottom of the housing; the compressing mechanism comprises a main bearing, a cylinder component, an auxiliary bearing, a crankshaft and a piston; the main bearing and the auxiliary bearing are arranged at two axial ends of the cylinder component; a first end of the crankshaft is connected with the motor, and a second end of the crankshaft penetrates the main bearing, the cylinder component and the auxiliary bearing; the piston is arranged on the crankshaft in a sleeving manner, located in a cylinder of the cylinder component, and provided with a piston inner chamber; the compressing mechanism is connected with the inner circumferential wall of the housing in a sealing manner to divide the interior of the housing into a first pressure cavity and a second pressure cavity of which the pressure is lower than that of the first pressure cavity; the motor is located in the first pressure cavity; the oil bath is located in the second pressure cavity; the piston inner chamber is communicated with the first pressure cavity; the pressure of the first pressure cavity is exhaust pressure of the compressor; and the pressure of the second pressure cavity is suction pressure of the compressor. According to the compressor provided by the invention, the volume efficiency and the energy efficiency of the compressor are guaranteed.
Description
Technical field
The present invention relates to Compressor Technology field, especially relate to a kind of compressor.
Background technology
In correlation technique, owing to the oil sump of low back pressure compressor is low pressure so that piston cavity is also low pressure, cylinder exhaust
The high pressure coolant that chamber is discharged is easily serious to piston inner hole leakage and leakage, thus causes low back pressure compressor volumetric efficiency
Declining, efficiency is relatively low.It is additionally, since discharge chamber to be arranged in low-pressure shell so that the seal structure complex of discharge chamber,
Discharge chamber cannot do greatly, and too small discharge chamber then cannot be carried out oil point, and after Oil-gas Separation, high pressure refrigeration oil cannot
Return to low pressure oil sump, and use capillary oil return cannot adapt to variable working condition environment.
Summary of the invention
It is contemplated that at least solve one of technical problem present in prior art.To this end, one object of the present invention exists
In proposing a kind of compressor, volumetric efficiency and the efficiency of described compressor are ensured.
According to the compressor of the present invention, including: housing, the bottom of described housing has oil sump；Motor, described motor sets
In described housing；Compression mechanism, described compression mechanism is positioned at the side of the neighbouring described oil sump of described motor, described
Compression mechanism includes that base bearing, cylinder assembly, supplementary bearing, crankshaft and piston, described base bearing and described supplementary bearing set
At the axial two ends of described cylinder assembly, and described base bearing is positioned at the side of neighbouring described motor of described cylinder assembly,
Described cylinder assembly includes cylinder, and the first end of described bent axle is connected with described motor, and the second end of described bent axle passes
Described base bearing, described cylinder assembly and described supplementary bearing, described piston bush is located on described bent axle and is positioned at described gas
In cylinder, described piston has piston cavity, is tightly connected to incite somebody to action between described compression mechanism and the internal perisporium of described housing
Described enclosure interior is separated into the first pressure chamber and pressure the second pressure chamber less than described first pressure chamber's pressure
Room, described motor is positioned at described first pressure chamber, and described oil sump is positioned at described second pressure chamber, described work
Plug inner chamber communicates with described first pressure chamber, and described first pressure chamber's pressure is the pressure at expulsion of described compressor,
Described second pressure chamber's pressure is the pressure of inspiration(Pi) of described compressor.
According to the compressor of the present invention, by arranging the first pressure chamber and pressure less than the second of first pressure chamber's pressure
Pressure chamber, and make piston cavity and the first pressure chamber communicate, it is ensured that the volumetric efficiency of compressor and efficiency.
According to some embodiments of the present invention, the discharge chamber of described cylinder is positioned at described first pressure chamber.
Alternatively, clearance seal between described supplementary bearing and described bent axle.
Further, described housing being formed with the air vent communicated with described first pressure chamber, described air vent is positioned at
The side away from described compression mechanism of described motor, the gas mixture discharged from described discharge chamber flows through described motor
After realize Oil-gas Separation.
According to some embodiments of the present invention, described cylinder has suction muffler, and wherein said compression mechanism is formed and institute
Stating the suction passage that suction muffler communicates, the lubricating oil in described oil sump is suitable to enter described air-breathing by described suction passage
Chamber.
According to some embodiments of the present invention, described bent axle has eccentric part, and wherein said piston bush is located at described eccentric part
On, pushing surface till a side surface of the neighbouring described supplementary bearing of described eccentric part, described thrust surface and described supplementary bearing it
Between be provided with rolling thrust structure so that the friction between described thrust surface and described supplementary bearing is rolling friction.
Further, a side surface of the neighbouring described eccentric part of described supplementary bearing is formed for only accommodating described rolling
The holding tank of selection structure.
Alternatively, described rolling thrust structure is ball thrust bearing.
According to some embodiments of the present invention, described base bearing is formed for by described first pressure chamber and described work
The communicating passage of plug inner space, described communicating passage includes: connectivity slot, and described connectivity slot is formed at described base bearing
Neighbouring described motor a side surface on and along described bent axle axial annular extend；With connect subchannel, described company
First end of logical subchannel connects with described connectivity slot, and the second end of described connection subchannel is with described piston cavity even
Logical.
Further, described compressor farther includes: shell is collected in oil return, and described oil return is collected shell and is located at described base bearing
Neighbouring described motor a side surface on, described oil return is collected and is limited oil return collecting tank between shell and described base bearing,
The conductive channel communicated with described oil return collecting tank, the profit in described oil return collecting tank it is formed with on wherein said base bearing
Lubricating oil is suitable to be entered between described base bearing and described bent axle by described conductive channel.
According to some embodiments of the present invention, it is tightly connected between the internal perisporium of described base bearing and described housing.
Further, a side surface of the neighbouring described motor of described base bearing is provided with sealed frame, and described base bearing leads to
Cross described sealed frame to be connected with described housing seal.
Alternatively, between described sealed frame and the internal perisporium of described housing, boxing is connected.
Further, it is provided with sealing gasket between described sealed frame and described base bearing.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become from the following description
Substantially, or by the practice of the present invention recognize.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage will become bright from combining the accompanying drawings below description to embodiment
Aobvious and easy to understand, wherein:
Fig. 1 is the schematic diagram of compressor according to embodiments of the present invention；
Fig. 2 is the enlarged drawing in the A portion that Fig. 1 centre circle shows；
Fig. 3 is the enlarged drawing in the B portion that Fig. 1 centre circle shows；
Fig. 4 is the enlarged drawing in the C portion that Fig. 1 centre circle shows；
Fig. 5 is the enlarged drawing in the D portion that Fig. 1 centre circle shows；
Fig. 6 is another schematic diagram of compressor according to embodiments of the present invention, illustrated therein is the flow direction of lubricating oil；
Fig. 7 is the enlarged drawing in the E portion that Fig. 6 centre circle shows.
Reference:
100: compressor；
1: housing；11: the first pressure chamber；12: the second pressure chamber；
13: air vent；14: reservoir；2: motor；
3: base bearing；31: hub portion；32: flange portion；321: connectivity slot；322: connection subchannel；
4: cylinder；41: air intake passage；5: supplementary bearing；51: cover plate；
511: the first subchannels；52: the second subchannels；53: suction passage；
54: holding tank；541: annular oil groove；
6: bent axle；61: eccentric part；611: thrust surface；7: piston；71: piston cavity；
8: roll thrust structure；9: shell is collected in oil return；91: oil return collecting tank.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish phase
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to
The embodiment that accompanying drawing describes is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ",
" width ", " thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ",
" level ", " top ", " end ", " interior ", " outward ", " axially ", " radially ", " circumferential " etc. refer to
The orientation shown or position relationship for based on orientation shown in the drawings or position relationship, be for only for ease of the description present invention and
Simplify and describe rather than indicate or imply that the device of indication or element must have specific orientation, with specific orientation
Structure and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or imply relatively heavy
The property wanted or the implicit quantity indicating indicated technical characteristic.Thus, " first ", the spy of " second " are defined
Levy and can express or implicitly include one or more this feature.In describing the invention, unless otherwise saying
Bright, " multiple " are meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " install ",
" be connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect,
Or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible in by
Between medium be indirectly connected to, can be the connection of two element internals.For the ordinary skill in the art, may be used
Above-mentioned term concrete meaning in the present invention is understood with concrete condition.
Below with reference to Fig. 1-Fig. 7, compressor 100 according to embodiments of the present invention is described.Compressor 100 can be vertical pressure
Contracting machine.In the application explained below, illustrate as a example by compressor 100 is as vertical compressor.Certainly, originally
Those of skill will appreciate that of field, compressor 100 can also be horizontal compressor.
As shown in figures 1 to 6, compressor 100 such as vertical compressor according to embodiments of the present invention, including housing 1,
Motor 2 and compression mechanism.
The bottom of housing 1 has oil sump.When compressor 100 works, it is right that the such as refrigeration oil of the lubricating oil in oil sump is suitable to
Each kinematic pair of compression mechanism is lubricated, and to ensure the properly functioning of compression mechanism, thus extends compressor 100
The service life of such as vertical compressor.
Motor 2 and compression mechanism are each provided in housing 1, and compression mechanism is positioned at the side of the neighbouring oil sump of motor 2, such as figure
Shown in 1 and Fig. 6, motor 2 is positioned at the top of housing 1, and compression mechanism is positioned at the bottom of housing 1.
Compression mechanism includes base bearing 3, cylinder assembly, supplementary bearing 5, bent axle 6 and piston 7, specifically, main shaft
Hold 3 and supplementary bearing 5 be located at the axial two ends (such as, the top and bottom in Fig. 1 and Fig. 6) of cylinder assembly, and
Base bearing 3 is positioned at the side (such as, the upside in Fig. 1 and Fig. 6) of the neighbouring motor 2 of cylinder assembly.Air cylinder group
Part includes that cylinder 4, cylinder 4 have suction muffler and discharge chamber, and suction muffler is for sucking from coolant to be compressed (as low temperature is low
Pressure coolant), discharge chamber is for treating the coolant after compression refrigerant is compressed and discharges compression (such as High Temperature High Pressure coolant).
First end (such as, the upper end in Fig. 1 with Fig. 6) of bent axle 6 is connected with motor 2, the second end (example of bent axle 6
As, the lower end in Fig. 1 and Fig. 6) through base bearing 3, cylinder assembly and supplementary bearing 5.Piston 7 is set in bent axle 6
On, piston 7 is positioned at cylinder 4 and the inwall along cylinder 4 can roll.When motor 2 works, bent axle 6 rotate with
Drive and be set in the piston 7 thereon internal perisporium rolling along cylinder 4 so that the coolant to be compressed entering in cylinder 4 to be entered
Row compression.Piston 7 has piston cavity 71, and now piston 7 can be the hollow circular ring shape structure of both ends open.
Cylinder assembly can only include a cylinder 4, and now compressor 100 such as vertical compressor is single cylinder compressor,
Fig. 1 and Fig. 6 shows single cylinder compressor for illustration purposes, but those of ordinary skill is being read time
After the technical scheme in face, it is clearly understood that the multi-cylinder that the program is applied to has two or more cylinder 4
In the technical scheme of compressor, within this also falls into protection scope of the present invention.
It is tightly connected between compression mechanism and the internal perisporium of housing 1 to be separated into the first pressure chamber 11 by internal for housing 1
With the second pressure chamber 12 that pressure is less than the first pressure chamber 11 pressure, motor 2 is positioned at the first pressure chamber 11,
Oil sump is positioned at the second pressure chamber 12, and the first pressure chamber 11 pressure is the pressure at expulsion of compressor 100, and second
Pressure chamber 12 pressure is the pressure of inspiration(Pi) of compressor 100.Now compression mechanism is separated into pressure not by internal for housing 1
Same higher-pressure region (the i.e. first pressure chamber 11) and low-pressure area (the i.e. second pressure chamber 12).Wherein, compressor 100
The pressure of low-temp low-pressure coolant that generally sucks from the air entry of compressor 100 of pressure of inspiration(Pi), and compressor 100
The High Temperature High Pressure coolant generally discharged from the air vent 13 of compressor 100 after compressor 100 compresses of pressure at expulsion
Pressure.It is understood that the concrete pressure of High Temperature High Pressure coolant obtained after low-temp low-pressure coolant and compression and temperature
Degree etc. specifically can be arranged according to the particular type of compressor 100, preferably to meet actual requirement.
Wherein, piston cavity 71 communicates with the first pressure chamber 11, the pressure in piston cavity 71 be pressure at expulsion (i.e.
High pressure), now the pressure in piston cavity 71 is roughly the same with the pressure in the discharge chamber of cylinder 4, thus gas row
High pressure coolant in air cavity is difficult to leak to piston cavity 71, solves traditional low back pressure compressor piston cavity 71
The leakage problem that low pressure causes.It addition, piston 7 by the height gap between itself and base bearing 3 and supplementary bearing 5,
And the gap between the suction muffler of seal oil piston 7 and cylinder 4 prevents the pressure in piston cavity 71 to suction
Air cavity leaks.
Compressor 100 such as vertical compressor according to embodiments of the present invention, by arranging the first pressure chamber 11 and pressure
Power is less than the second pressure chamber 12 of the first pressure chamber 11 pressure, and makes piston cavity 71 and the first pressure chamber 11
Communicate, it is ensured that the volumetric efficiency of compressor 100 such as vertical compressor and efficiency.
According to some embodiments of the present invention, the discharge chamber of cylinder 4 is positioned at the first pressure chamber 11, now discharge chamber
It is placed in the environment under high pressure of the first pressure chamber 11, compared with the sealing structure of low back pressure compressor discharge chamber, according to this
The sealing structure of discharge chamber of invention is simplified greatly, and discharge chamber can do relatively large, such that it is able to enter
Row Oil-gas Separation.
Further, housing 1 being formed with the air vent 13 communicated with the first pressure chamber 11, air vent 13 is positioned at
The side away from compression mechanism of motor 2, such as, as shown in figures 1 to 6, air vent 13 is formed at housing 1
Top, realizes Oil-gas Separation after the gas mixture of discharge chamber discharge flows through motor 2.Specifically, arrange from discharge chamber
The gas mixture gone out can be directly entered the first pressure chamber 11, and the motor 2 in flowing through the first pressure chamber 11
Shi Jinhang Oil-gas Separation, isolated lubricating oil flows downward under the action of gravity of self, and high pressure coolant then continues
Flow up and discharge from air vent 13.
Alternatively, clearance seal between supplementary bearing 5 and bent axle 6, now the gap between supplementary bearing 5 and bent axle 6 is very
Little, for example, it is possible to be 10 microns-30 microns (including endpoint value), such that it is able to realize capillary throttling action, from
The lubricating oil of motor 2 side reflux is behind the gap flowed through between supplementary bearing 5 and bent axle 6, and the pressure of lubricating oil can drop
Low to suitable with the pressure being positioned at the second pressure chamber 12 oil sump.And, lubricating oil is flowing through supplementary bearing 5 and bent axle
During gap between 6, not only supplementary bearing 5 and bent axle 6 are played the effect of lubrication, also further ensure countershaft simultaneously
Hold the sealing between 5 and bent axle 6.
According to some embodiments of the present invention, compression mechanism is formed with the suction passage that the suction muffler with cylinder 4 communicates
53, the lubricating oil in oil sump is suitable to enter suction muffler by suction passage 53.Specifically, with reference to Fig. 6 and combine figure
7, one end away from cylinder 4 of supplementary bearing 5 is provided with cover plate 51, and suction passage 53 includes be formed on cover plate 51
One subchannel 511 and the second subchannel 52 being formed on supplementary bearing 5 and connect with the first subchannel 511, the second son
Passage 52 communicates, thus, when compressor 100 with the air intake passage 41 being formed on cylinder 4 and connect with suction muffler
During work, the lubricating oil flowed through in the coolant of reservoir 14 and oil sump can be sucked by breathing process the suction of cylinder 4
In air cavity, specifically, coolant enters suction muffler by air intake passage 41, lubricating oil flow through successively the first subchannel 511,
Second subchannel 52, then enter suction muffler by air intake passage 41, to lubricate and to seal each kinematic pair.
According to some embodiments of the present invention, with reference to Fig. 1 and combine Fig. 2, bent axle 6 has eccentric part 61, wherein piston
7 are set on eccentric part 61, and a side surface of the neighbouring supplementary bearing 5 of eccentric part 61 is (such as, in Fig. 1 and Fig. 2
Lower surface) it is thrust surface 611, it is provided with rolling thrust structure 8 between thrust surface 611 and supplementary bearing 5 so that thrust surface
Friction between 611 and supplementary bearing 5 is rolling friction.Alternatively, rolling thrust structure 8 is ball thrust bearing, but
It is not limited to this.Due to the first pressure chamber 11 and the existence of the height pressure reduction of the second pressure chamber 12, bent axle 6 can be pressed
The upper surface of tight supplementary bearing 5, causes frictional resistance to increase, therefore at the above-mentioned thrust surface 611 of eccentric part 61 of bent axle 6
And rolling thrust structure 8 such as ball thrust bearing is set between supplementary bearing 5, by between thrust surface 611 and supplementary bearing 5
Sliding friction be transformed into rolling friction, with reducing friction resistance.Bent axle 6 with partially passing through that supplementary bearing 5 coordinates
Roll the endoporus of thrust structure 8 such as ball thrust bearing, and with supplementary bearing 5 matched in clearance to constitute sliding bearing, hold
By radial load.Owing to piston cavity 71 is high pressure, above-mentioned second end of bent axle 6 is low pressure, therefore at both sides pressure reduction
The lower lubricating oil of effect by from piston cavity 71 by rolling thrust structure 8, bent axle 6 and the fit clearance of supplementary bearing 5
Flow to low pressure oil sump, thus realize rolling the lubrication of the sliding bearing that thrust structure 8, bent axle 6 and supplementary bearing 5 are constituted and
Cooling.
Further, a side surface (such as, the upper surface in Fig. 1 and Fig. 2) of the neighbouring eccentric part 61 of supplementary bearing 5
On be formed for accommodate roll thrust structure 8 holding tank 54, such as, as depicted in figs. 1 and 2, holding tank 54
Can be downwardly concaved by a part for the upper surface of supplementary bearing 5 and be formed, and holding tank 54 and supplementary bearing 5 with bent axle 6
The endoporus coordinated directly connects, and rolls thrust structure 8 such as ball thrust bearing and can be directly placed in this holding tank 54,
Certainly, two thrust washers of ball thrust bearing can also be fixed inwall with thrust surface 611 and holding tank 54 respectively.
Further, as in figure 2 it is shown, be formed with the circumferentially extending ring along supplementary bearing 5 on the diapire of holding tank 54
Shape oil groove 541, is suitable in annular oil groove 541 store lubricating oil with normal lubricated balls thrust bearing.
According to some embodiments of the present invention, with reference to Fig. 1 and combine Fig. 3, base bearing 3 is formed for pressing first
The communicating passage that power chamber 11 connects with piston cavity 71, thus, it is possible to the pressure being effectively ensured in piston cavity 71
For high pressure (i.e. the pressure with the first pressure chamber 11 is substantially the same).Specifically, communicating passage includes: connectivity slot
321 with connect subchannel 322, (such as, connectivity slot 321 is formed at a side surface of the neighbouring motor 2 of base bearing 3
Upper surface in Fig. 1 and Fig. 3) on, such as, as it is shown on figure 3, connectivity slot 321 can be by the upper table of base bearing 3
The part in face is downwardly concaved formation, and connectivity slot 321 is along the axial annular extension of bent axle 6, now connectivity slot 321
For around the cannelure of bent axle 6, thus, by arranging connectivity slot 321 ringwise, through the isolated profit of motor 2
After lubricating oil flow to the upper surface of base bearing 3 along the inwall of housing 1, the no matter lubricating oil any position in housing 1 circumference
Put, all can flow into connectivity slot 321, and finally flow into oil sump, without occurring that lubricating oil accumulates in the first pressure chamber
Situation in 11.
As shown in Figure 3-Figure 5, connect first end (such as, the upper end in Fig. 1 and Fig. 3) of subchannel 322 and connect
Groove 321 connects, and connects in the second end (such as, the lower end in Fig. 1 and Fig. 3) and the piston of subchannel 322
Chamber 71 connects.Thus, the part in isolated lubricating oil is by downward for the endoporus along piston cavity 71, supplementary bearing 5
Flowing back to oil sump, in the process, lubricating oil is respectively to eccentric part 61 and piston 7 and bent axle 6 and supplementary bearing 5 structure
The sliding bearing become is lubricated；Another part then flows up along the helical oil groove of base bearing 3, and from base bearing 3
Top discharge, in the process, the sliding bearing that oil lubrication base bearing 3 and bent axle 6 are constituted.Wherein, even
Above-mentioned first end of logical subchannel 322 preferably diapire with connectivity slot 321 is connected, to ensure the profit in connectivity slot 321
Lubricating oil can be smoothly through connection subchannel 322 and enter piston cavity 71.
Further, as shown in Fig. 1, Fig. 3, Fig. 5-Fig. 6, compressor 100 such as vertical compressor farther includes:
Shell 9 is collected in oil return, and oil return is collected the top of shell 9 and opened wide, and oil return is collected shell 9 and is located at the neighbouring motor 2 of base bearing 3
A side surface on, oil return is collected and is limited oil return collecting tank 91 between shell 9 and base bearing 3, and oil return collecting tank 91 is used
In storing isolated lubricating oil such as refrigeration oil and to base bearing 3 lubrication oil supply.Specifically, base bearing 3 includes vertically
The hub portion 31 being sequentially connected and flange portion 32, oil return collection shell 9 passes hub portion 31 and fixes with flange portion 32,
Such as, oil return is collected shell 9 and can be fastened on base bearing 3 by screw, and oil return is collected outside shell 9 and hub portion 31
Limit oil return collecting tank 91 between perisporium, be wherein formed with the conducting communicated with oil return collecting tank 91 on base bearing 3 and lead to
Road, the lubricating oil in oil return collecting tank 91 is suitable to enter between base bearing 3 and bent axle 6 by conductive channel, with to master
The sliding bearing that bearing 3 and bent axle 6 are constituted is lubricated, and simultaneously works as the effect sealed.Wherein, conductive channel
The one end being connected with oil return collecting tank 91 is preferably placed at the bottom of oil return collecting tank 91.Base bearing 3 is entered through conductive channel
With the lubricating oil between bent axle 6 and the lubricating oil from communicating passage entrance are after discharging from the top of base bearing 3, permissible
Flow back in oil return collecting tank 91, i.e. lubricating oil such as refrigeration oil in oil return collecting tank 91 flows back to main shaft through conductive channel
Continue lubricating spindle in holding the helical oil groove of 3 and hold 3 and the sliding bearing that constituted of bent axle 6, it is achieved circulation.
According to some embodiments of the present invention, with reference to Fig. 1 and combine Fig. 4, between the internal perisporium of base bearing 3 and housing 1
It is tightly connected, such as, fastening can be realized by boxing one circle and seal between the internal perisporium of base bearing 3 and housing 1,
But it is not limited to this.Certainly, a side surface of the neighbouring motor 2 of base bearing 3 is also provided with sealed frame, main shaft
Hold 3 to be tightly connected with housing 1 by sealed frame.Alternatively, boxing between the internal perisporium of sealed frame and housing 1
Connect.
Further, between sealed frame and base bearing 3, it is provided with sealing gasket, to be further ensured that the first pressure chamber 11
And the sealing that second between pressure chamber 12.Wherein, screw is used between base bearing 3, sealed frame and sealing gasket
Fasten and seal.
Suction hole is opened in the second pressure chamber 12 side, enters cylinder 4 after reservoir 14 realizes Oil-gas Separation.Low
The lubricating oil in force feed pond such as refrigeration oil enters cylinder 4 by air intake passage 41 and lubricates and seal associated gap.Cylinder 4
The coolant after interior compression steam vent on base bearing 3 and supplementary bearing 5 is discharged, and flows through in the first pressure chamber 11
Motor 2 realizes Oil-gas Separation, isolated freezing oil-lubricated bearing and piston cavity 71, warp in the first pressure chamber 11
Cross the gap between supplementary bearing 5 and bent axle 6 and return to low pressure oil sump, it is achieved whole circulation.
Compressor 100 such as vertical compressor according to embodiments of the present invention, solves the work of traditional low back pressure compressor
The plug leakage problem that causes of inner chamber 71 low pressure and discharge chamber too small cannot the problem of oil point, and high pressure profit after Oil-gas Separation
The problem that lubricating oil such as refrigeration oil cannot return to low pressure oil sump.It addition, the simple in construction of the compressor 100 of the present invention, property
Can be high, good reliability, it is adaptable to few oil sealing, coolant is the use of inflammable and explosive coolant occasion.
Other of compressor 100 such as vertical compressor according to embodiments of the present invention constitute and operate for this area
It is all known for those of ordinary skill, is not detailed herein.
In the description of this specification, reference term " embodiment ", " some embodiments ", " illustrative examples ",
It is concrete that the description of " example ", " concrete example " or " some examples " etc. means to combine this embodiment or example describes
Feature, structure, material or feature are contained at least one embodiment or the example of the present invention.In this manual, right
The schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure,
Material or feature can combine in any one or more embodiments or example in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: do not taking off
In the case of the principles and objective of the present invention, these embodiments can be carried out multiple change, revise, replace and modification,
The scope of the present invention is limited by claim and equivalent thereof.
Claims (14)
1. a compressor, it is characterised in that including:
Housing, the bottom of described housing has oil sump；
Motor, described motor is located in described housing；
Compression mechanism, described compression mechanism is positioned at the side of the neighbouring described oil sump of described motor, and described compression mechanism includes
Base bearing, cylinder assembly, supplementary bearing, crankshaft and piston, described base bearing and described supplementary bearing are located at described air cylinder group
The axial two ends of part, and described base bearing is positioned at the side of neighbouring described motor of described cylinder assembly, described air cylinder group
Part includes cylinder, and the first end of described bent axle is connected with described motor, the second end of described bent axle through described base bearing,
Described cylinder assembly and described supplementary bearing, described piston bush is located on described bent axle and is positioned at described cylinder, described work
Plug has piston cavity, is tightly connected with by described enclosure interior between described compression mechanism and the internal perisporium of described housing
It is separated into the first pressure chamber and pressure the second pressure chamber less than described first pressure chamber's pressure, described motor position
In described first pressure chamber, described oil sump is positioned at described second pressure chamber, described piston cavity and described the
One pressure chamber communicates, and described first pressure chamber's pressure is the pressure at expulsion of described compressor, described second pressure chamber
Chamber pressure is the pressure of inspiration(Pi) of described compressor.
Compressor the most according to claim 1, it is characterised in that the discharge chamber of described cylinder is positioned at described first
In pressure chamber.
Compressor the most according to claim 2, it is characterised in that gap between described supplementary bearing and described bent axle
Seal.
Compressor the most according to claim 2, it is characterised in that be formed on described housing and described first pressure
The air vent that power chamber communicates, described air vent is positioned at the side away from described compression mechanism of described motor,
The gas mixture discharged from described discharge chamber realizes Oil-gas Separation after flowing through described motor.
Compressor the most according to claim 1, it is characterised in that described cylinder has suction muffler, wherein said
Being formed with, in compression mechanism, the suction passage communicated with described suction muffler, the lubricating oil in described oil sump is suitable to by described
Suction passage enters described suction muffler.
6. according to the compressor according to any one of claim 1-5, it is characterised in that described bent axle has eccentric part,
Wherein said piston bush is located on described eccentric part, pushes away till a side surface of the neighbouring described supplementary bearing of described eccentric part
Face,
Be provided with rolling thrust structure between described thrust surface and described supplementary bearing so that described thrust surface and described supplementary bearing it
Between friction be rolling friction.
Compressor the most according to claim 6, it is characterised in that the neighbouring described eccentric part of described supplementary bearing
The holding tank for accommodating described rolling thrust structure it is formed with on one side surface.
Compressor the most according to claim 6, it is characterised in that described rolling thrust structure is ball thrust shaft
Hold.
Compressor the most according to claim 1, it is characterised in that be formed on described base bearing for by described
The communicating passage that first pressure chamber connects with described piston cavity,
Described communicating passage includes:
Connectivity slot, on a side surface of the neighbouring described motor that described connectivity slot is formed at described base bearing and along described bent axle
Axial annular extend；With
Connection subchannel, the first end of described connection subchannel connects with described connectivity slot, and the of described connection subchannel
Two ends connect with described piston cavity.
Compressor the most according to claim 9, it is characterised in that farther include:
Shell is collected in oil return, and described oil return is collected on a side surface of the neighbouring described motor that shell is located at described base bearing, described
Oil return is collected and is limited oil return collecting tank between shell and described base bearing,
The conductive channel communicated with described oil return collecting tank it is formed with, in described oil return collecting tank on wherein said base bearing
Lubricating oil is suitable to be entered between described base bearing and described bent axle by described conductive channel.
11. compressors according to claim 1, it is characterised in that described base bearing and the internal perisporium of described housing
Between be tightly connected.
12. compressors according to claim 11, it is characterised in that the neighbouring described motor of described base bearing
One side surface is provided with sealed frame, and described base bearing is connected with described housing seal by described sealed frame.
13. compressors according to claim 12, it is characterised in that described sealed frame is interior with described housing
Between perisporium, boxing connects.
14. compressors according to claim 12, it is characterised in that described sealed frame and described base bearing it
Between be provided with sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610447351.6A CN105952649B (en) | 2016-06-17 | 2016-06-17 | Compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610447351.6A CN105952649B (en) | 2016-06-17 | 2016-06-17 | Compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105952649A true CN105952649A (en) | 2016-09-21 |
| CN105952649B CN105952649B (en) | 2018-03-23 |
Family
ID=56905982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610447351.6A Active CN105952649B (en) | 2016-06-17 | 2016-06-17 | Compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105952649B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286302A (en) * | 2016-09-13 | 2017-01-04 | 西安庆安制冷设备股份有限公司 | A kind of rotor-type compressor structure |
| CN107616847A (en) * | 2017-09-11 | 2018-01-23 | 苏州速迈医疗设备有限公司 | The Bearning mechanism and surgical operation microscope of surgical operation microscope |
| CN107869463A (en) * | 2016-09-26 | 2018-04-03 | 广东美芝精密制造有限公司 | Compressor |
| CN108591537A (en) * | 2018-06-19 | 2018-09-28 | 广东美芝精密制造有限公司 | Fluid pressure switching valve, capacity-varying rotary type compressor and refrigerating circulatory device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000265979A (en) * | 1999-03-12 | 2000-09-26 | Mitsubishi Electric Corp | Rotary compressor |
| JP2002195180A (en) * | 2000-12-27 | 2002-07-10 | Fujitsu General Ltd | Rotary compressor |
| CN101265906A (en) * | 2007-03-15 | 2008-09-17 | 三星电子株式会社 | Rotary type compressor |
| JP2010174675A (en) * | 2009-01-28 | 2010-08-12 | Panasonic Corp | Hermetically-sealed compressor |
| CN103511260A (en) * | 2013-03-06 | 2014-01-15 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN103827499A (en) * | 2011-09-28 | 2014-05-28 | 大金工业株式会社 | Compressor |
| CN204941942U (en) * | 2015-08-24 | 2016-01-06 | 广东美芝制冷设备有限公司 | Rotary compressor and compression assembly thereof |
| CN105545736A (en) * | 2016-01-22 | 2016-05-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotating cylinder piston compressor pump body and compressor comprising same |
| CN205689435U (en) * | 2016-06-17 | 2016-11-16 | 广东美芝制冷设备有限公司 | Compressor |
-
2016
- 2016-06-17 CN CN201610447351.6A patent/CN105952649B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000265979A (en) * | 1999-03-12 | 2000-09-26 | Mitsubishi Electric Corp | Rotary compressor |
| JP2002195180A (en) * | 2000-12-27 | 2002-07-10 | Fujitsu General Ltd | Rotary compressor |
| CN101265906A (en) * | 2007-03-15 | 2008-09-17 | 三星电子株式会社 | Rotary type compressor |
| JP2010174675A (en) * | 2009-01-28 | 2010-08-12 | Panasonic Corp | Hermetically-sealed compressor |
| CN103827499A (en) * | 2011-09-28 | 2014-05-28 | 大金工业株式会社 | Compressor |
| CN103511260A (en) * | 2013-03-06 | 2014-01-15 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN204941942U (en) * | 2015-08-24 | 2016-01-06 | 广东美芝制冷设备有限公司 | Rotary compressor and compression assembly thereof |
| CN105545736A (en) * | 2016-01-22 | 2016-05-04 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotating cylinder piston compressor pump body and compressor comprising same |
| CN205689435U (en) * | 2016-06-17 | 2016-11-16 | 广东美芝制冷设备有限公司 | Compressor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286302A (en) * | 2016-09-13 | 2017-01-04 | 西安庆安制冷设备股份有限公司 | A kind of rotor-type compressor structure |
| CN107869463A (en) * | 2016-09-26 | 2018-04-03 | 广东美芝精密制造有限公司 | Compressor |
| CN107616847A (en) * | 2017-09-11 | 2018-01-23 | 苏州速迈医疗设备有限公司 | The Bearning mechanism and surgical operation microscope of surgical operation microscope |
| CN108591537A (en) * | 2018-06-19 | 2018-09-28 | 广东美芝精密制造有限公司 | Fluid pressure switching valve, capacity-varying rotary type compressor and refrigerating circulatory device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105952649B (en) | 2018-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205689435U (en) | Compressor | |
| CN202579183U (en) | Compressor | |
| US7600986B2 (en) | Filtering device for multistage compression type rotary compressor | |
| US7556482B2 (en) | Scroll compressor with enhanced lubrication | |
| CN103912493B (en) | Compressor and refrigeration system with same | |
| US9239054B2 (en) | Scroll compressor with oil-cooled motor | |
| CN105952649A (en) | Compressor | |
| JP5863135B2 (en) | Reciprocating compressor | |
| JP5014346B2 (en) | Expander-integrated compressor and refrigeration cycle apparatus including the same | |
| CN106481555B (en) | A kind of horizontal compressor and temperature equipment | |
| CN106168215B (en) | Compressor | |
| CN106194735B (en) | Rotary compressor and refrigerating circulatory device with it | |
| CN110325738A (en) | Compressor | |
| CN106168216A (en) | Compressor | |
| CN106382227A (en) | Multi-stage compression type rotary compressor and refrigerating circulating device provided with same | |
| CN206035813U (en) | Rotary compressor and have its refrigeration cycle device | |
| CN101900113B (en) | Compressor and oil-cooling system | |
| CN104696227B (en) | Rotary compressor | |
| JP2012013052A (en) | Hermetic compressor and refrigerating cycle device | |
| JP2009180176A (en) | Scroll compressor | |
| CN207420872U (en) | A kind of compressor | |
| CN214403973U (en) | Compressor static disc, static disc assembly, compressor and oil way structure | |
| CN205858587U (en) | Compressor | |
| CN207111436U (en) | A kind of compressor | |
| CN217481540U (en) | Compressor oil return structure, compressor and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |