CN105587662B - A kind of screw compressor - Google Patents
A kind of screw compressor Download PDFInfo
- Publication number
- CN105587662B CN105587662B CN201610115537.1A CN201610115537A CN105587662B CN 105587662 B CN105587662 B CN 105587662B CN 201610115537 A CN201610115537 A CN 201610115537A CN 105587662 B CN105587662 B CN 105587662B
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- China
- Prior art keywords
- orbiter
- fixed scroll
- oil groove
- screw compressor
- oil
- Prior art date
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Links
- 238000007906 compression Methods 0.000 claims abstract description 43
- 230000006835 compression Effects 0.000 claims abstract description 42
- 239000003507 refrigerant Substances 0.000 claims description 17
- 238000000926 separation method Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 238000000605 extraction Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 87
- 239000007789 gas Substances 0.000 description 31
- 239000010687 lubricating oil Substances 0.000 description 19
- 239000010720 hydraulic oil Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical class OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- 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
- 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
- F04C29/026—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
- F04C2220/00—Application
- F04C2220/20—Pumps with means for separating and evacuating the gaseous phase
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The present invention relates to Compressor Technology field, and in particular to a kind of screw compressor.The screw compressor includes fixed scroll and orbiter, and the exhaust gas region of the fixed scroll is provided with the exhaust cushion chamber being connected with the compression chamber, the exhaust cushion chamber and is provided with gas and oil separating plant；At least provided with first oil groove and the second oil groove at the end plate face that the fixed scroll and orbiter fit and positioned at the periphery of the compression chamber, first oil groove is connected by first passage with the bottom of the exhaust cushion chamber, and second oil groove is connected by second channel with the bearing hole of the orbiter.The screw compressor efficiently solves the problem of can not having low oil extraction rate concurrently while lubricating end plate face between the orbiting and fixed scroll in the prior art.
Description
Technical field
The present invention relates to Compressor Technology field, more particularly to a kind of screw compressor.
Background technology
Screw compressor because its efficiency high, small volume, light weight, operate steadily be widely used in air-conditioning and heat pump etc.
In system.In screw compressor, the helical-type line on orbiter and fixed scroll, which is intermeshed, forms a series of moon
Thread form compression chamber, along with the eccentric operating of orbiter, crescent compression chamber is constantly moved from periphery to center, now,
Refrigerant in compression chamber is pushed to center, and its volume constantly reduces and pressure is constantly raised, until the calm disk exhaust outlet phase with
Logical, refrigerant is discharged compression chamber as gases at high pressure, completes compression process.In compressor operation, typically by being placed in bent axle
Lubricating oil is supplied to the sliding positions such as bearing, orbiter by the oil supply component of bottom from bottom oil sump by crankshaft center oilhole,
Make compressor reliability service.
At present, in screw compressor running, orbiter can be made by downward separating force in compression chamber
Topple, cause to compress endoluminal leak, reduce compression efficiency., typically can be to suppress the separation of orbiter and toppling
It is high pressure and mesolow gas that orbiter back space, which is set up in back pressure cavity, back pressure cavity, can make orbiter by upward
Back pressure, orbiter is tightly pressed against on fixed scroll, seal compression chamber.Make the back pressure set up in this way general
Separating force, particularly under the larger operating mode of pressure differential, the now friction in the orbiting and fixed scroll end plate face bonded to each other can be more than
Power also can be very big, adds power consumption and the abrasion of compressor.
To reduce the fretting wear problem brought because back pressure is excessive, prior art is opened up in the end plate face of fixed scroll
One arc oil groove, the hydraulic oil in the bearing hole of orbiter back is introduced into oil groove by the oily passage that draws in Moving plate, this
Sample can increase the lubrication between the orbiting and fixed scroll end plate, while can suppress the problem of back pressure is excessive.But, due to the height of introducing
Force feed can be progressed into compression chamber, and it discharges compressor therewith after being mixed in compression chamber with refrigerant, so add vortex
The oil extraction rate of compressor, without while having the problem of lubrication is with low oil extraction rate concurrently.
The content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention be in the prior art between the orbiting and fixed scroll end plate face lubricate while
The problem of low oil extraction rate can not be had concurrently.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides a kind of screw compressor, it includes fixed scroll and dynamic whirlpool
Capstan, forms the compression chamber for compression refrigerant between the fixed scroll and orbiter；The exhaust area of the fixed scroll
Domain, which is provided with the exhaust cushion chamber being connected with the compression chamber, the exhaust cushion chamber, is provided with gas and oil separating plant；Described quiet
At least provided with first oil groove, institute at the end plate face that scroll plate fits with orbiter and positioned at the periphery of the compression chamber
The first oil groove is stated by first passage with the bottom of the exhaust cushion chamber to be connected.
Wherein, at the end plate face that the fixed scroll and orbiter fit and positioned at the periphery of the compression chamber extremely
Less provided with second oil groove, second oil groove is connected by second channel with the bearing hole of the orbiter.
Wherein, the first passage includes the first radial passage being opened in respectively on the fixed scroll and first axially
Passage, first oil groove passes sequentially through the first axial passage, the first radial passage and is connected with the bottom of the exhaust cushion chamber.
Wherein, the second channel includes the second radial passage being opened in respectively on the orbiter and second axially
Passage, second oil groove passes sequentially through the second axial passage, the second radial passage and is connected with the bearing hole of the orbiter.
Wherein, first radial passage and or second radial passage in be provided with throttle part.
Wherein, the throttle part is throttling rod, and one end of the throttling rod is plug portion, and the other end is restriction, institute
The diameter for stating plug portion is more than the diameter of the restriction, and the outer surface of the plug portion and restriction is equipped with screw thread.
Wherein, first oil groove is opened on the end plate face of the fixed scroll or the orbiter；Described
Two oil grooves are opened on the end plate face of the fixed scroll or the orbiter.
Wherein, first oil groove and second oil groove are respectively deep-slotted chip breaker, first oil groove and the described second oil
Groove ecto-entad is arranged in order in the periphery of the compression chamber.
Wherein, the fixed scroll is provided with exhaust outlet, and the fixed scroll forms interior in the region where its exhaust outlet
Spiral-lock has the dividing plate with outlet on recess, the inner fovea part, and the space between the dividing plate and the inner fovea part is defined as
The exhaust cushion chamber.
Wherein, the bottom of the exhaust cushion chamber is provided with annular groove, and the annular groove is connected with the first passage；
The middle part of the exhaust cushion chamber is provided with step, and the gas and oil separating plant is arranged on the step.
Wherein, the gas and oil separating plant is screen pack, convex hemispherical wire side knot centered on the screen pack
Structure.
Wherein, the outward flange of the screen pack is provided with sheet metal, and the sheet metal, which is provided with, to be used to buffer with the exhaust
The fixed part of chamber connection.
Wherein, the gas and oil separating plant is orifice filter, convex hemispherical hole centered on the orifice filter
Hardened structure.
Wherein, the screw compressor also includes shell and the frame, bent axle and the driving that are respectively arranged in the shell
Device；A part for the frame is used to support the fixed scroll and orbiter, and another part is used to support the bent axle；
The drive device drives the orbiter eccentric rotary by bent axle.
(3) beneficial effect
The above-mentioned technical proposal of the present invention has the advantages that：
1), the present invention provides a kind of screw compressor, by carrying out Oil-gas Separation to the refrigerant discharged from compression chamber, and will
The lubricating oil isolated is introduced to the joint place in the orbiting and fixed scroll end plate face, the fretting wear between reduction the orbiting and fixed scroll end plate
While, it also inhibits the rising of oil extraction rate, the problem of solution can not take into account low oil extraction rate in the prior art.
2), the lubricating oil in orbiter bearing bore can also be introduced to the patch in the orbiting and fixed scroll end plate face simultaneously in the present invention
At conjunction, because the lubricating oil in the lubricating oil and orbiter bearing bore that are separated is hydraulic oil, can make orbiter by
Downward pressure, has balanced action to back pressure.
3), the present invention is provided with exhaust cushion chamber in fixed scroll exhaust gas region so that the refrigerant ejected from compression chamber is first
Be introduced into exhaust cushion chamber, needed after Oil-gas Separation from the outlet of dividing plate could enter compressor in exhaust space, therefore
Also there is the function of reduction compressor air-discharging noise to a certain extent.
4), the first oil groove and the second oil groove in the present invention can be both opened on the end plate face of fixed scroll, again can be with
It is opened on the end plate face of orbiter, its is simple in construction, flexible design.
Brief description of the drawings
Fig. 1 is the integrally-built sectional view of the screw compressor of the embodiment of the present invention one；
Fig. 2 is sectional view local above the screw compressor of the embodiment of the present invention one；
Fig. 3 is the fixed scroll of the embodiment of the present invention one and gas and oil separating plant and the Split type structure schematic diagram of dividing plate；
Fig. 4 is the top view of the screw compressor of the embodiment of the present invention one；
Fig. 5 is sectional view local above the screw compressor of the embodiment of the present invention two；
Fig. 6 is the structural representation of the throttle part of the embodiment of the present invention two；
Fig. 7 is the structural representation of the gas and oil separating plant of the embodiment of the present invention two.
Wherein, 1：Fixed scroll；2：Orbiter；3：Cross slip-ring；4：Mainframe；5：Bent axle；6：Stator；7：Rotor；
9：Slave frame；10：Lower cover；11：Casing；13：Sealing ring；14：Upper lid；15：Air intake duct；A：First back pressure chamber；B：Second back pressure
Room；18：It is vented cushion chamber；20：Gas and oil separating plant；20a：Through hole；21：Dividing plate；21a：Outlet；22：Sealing bolt；40：Section
Stream unit；101：Annular groove；102：First radial passage；103：First axial passage；104：First oil groove；105：Second oil
Groove；106：Exhaust outlet；107：Step；C：End plate face first position；D：The end plate face second place；201：Second radial passage；
202：Second axial passage.
Embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following examples are used for
Illustrate the present invention, but can not be used for limiting the scope of the present invention.
In the description of the invention, it is necessary to explanation, unless otherwise indicated, " multiple " be meant that two or two with
On；The orientation of the instruction such as term " on ", " under ", "left", "right", " interior ", " outer ", " front end ", " rear end ", " head ", " afterbody "
Or position relationship is, based on orientation shown in the drawings or position relationship, to be for only for ease of the description present invention and simplify description, and
It is not instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore
It is not considered as limiting the invention.
In addition, term " first ", " second ", " the 3rd " etc. are only used for describing purpose, and it is not intended that indicating or implying
Relative importance.Term " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or
It is detachably connected, or is integrally connected；Can be mechanical connection or electrical connection；Can be joined directly together, can also lead to
Intermediary is crossed to be indirectly connected to.For the ordinary skill in the art, visual concrete condition understands above-mentioned term at this
Concrete meaning in invention.
Embodiment one
As Figure 1-4, the screw compressor that the present embodiment is provided includes fixed scroll 1 and orbiter 2；Fixed scroll
The compression chamber for compression refrigerant is formed between 1 and orbiter 2, the exhaust gas region of fixed scroll 1 is provided with to be connected with compression chamber
Exhaust cushion chamber 18, exhaust cushion chamber 18 in be provided with gas and oil separating plant 20, from compression chamber discharge refrigerant initially enter row
Gas cushion chamber 18, then carries out Oil-gas Separation through gas and oil separating plant 20 again, and the lubricating oil being separated falls into slow to exhaust
Rush the bottom of chamber 18.Meanwhile, at the end plate face that fixed scroll 1 and orbiter 2 fit and positioned at the outer of the compression chamber
(the horizontal abutment position of fixed scroll 1 and orbiter 2 in compression chamber periphery) is enclosed at least provided with first oil groove 104, the
One oil groove 104 is connected by first passage with being vented the bottom of cushion chamber 18 so that the lubricating oil isolated is introduced into quiet whirlpool
At the end plate face of capstan 1 and orbiter 2, while the fretting wear between reducing the orbiting and fixed scroll end plate, the row of also inhibits
The rising of oil cut rate, the problem of solution can not take into account low oil extraction rate in the prior art.
Moreover, the present embodiment screw compressor is at the end plate face that fixed scroll 1 and orbiter 2 fit and positioned at institute
The periphery for stating compression chamber is at least additionally provided with second oil groove 105, and the second oil groove 105 passes through second channel and orbiter 2
Bearing hole is connected, and the lubricating oil in the bearing hole of orbiter 2 can be introduced in the second oil groove 105, equally also reduce quiet whirlpool
Abrasion between capstan 1 and the end plate face of orbiter 2.Simultaneously as the lubricating oil in the lubricating oil and bearing hole that are separated is equal
For hydraulic oil, orbiter 2 can be made by downward pressure, there is balanced action to back pressure.
The concrete form of first passage and second channel does not limit in the present embodiment, and visual actual conditions are flexibly set.
Preferably, the first radial passage 102 and first that first passage includes being opened in respectively on fixed scroll 1 is axially logical
Road 103, the first oil groove 104 passes sequentially through the first axial passage 103, the first radial passage 102 and the bottom of exhaust cushion chamber 18
It is connected.Accordingly, second channel includes the second radial passage 201, the second axial passage being opened in respectively on orbiter 2
202, the second oil groove 105 passes sequentially through the second axial passage 202, the second radial passage 201 and the bearing hole phase of orbiter 2
Even.
What deserves to be explained is, " radial passage " in the present embodiment may refer to the interconnection shown in Fig. 2, " axially
Passage " may refer to the transverse and longitudinal passage shown in Fig. 2.
Further, sealing bolt 22 can be installed in the opening portion of the first radial passage 102 in the present embodiment, meanwhile,
Throttle part 40 is provided with the second radial passage 201.
Specifically, throttle part 40 is throttling rod, and one end of the throttling rod is plug portion, and the other end is restriction, plug
The diameter in portion is more than the diameter of restriction, and the outer surface of plug portion and restriction is equipped with screw thread, for the high pressure in passage
Oil carries out the effect of reducing pressure by regulating flow.
Open up that position is same also not to limit to for the first oil groove 104 and the second oil groove 105 in the present embodiment, specifically open
If position can flexibly be set.For example：In the present embodiment, the first oil groove 104 and the second oil groove 105 are opened in fixed scroll 1
On end plate face.
In addition, the first oil groove 104 and the second oil groove 105 open up quantity and can also randomly choosed, i.e. the first oil groove 104 with
The quantity of second oil groove 105 is not less than 1.
Further, the first oil groove 104 and the second oil groove 105 are respectively deep-slotted chip breaker, the first oil groove 104 and the second oil groove
105 ecto-entads are arranged in order in the periphery of compression chamber.That is, the first distance of the oil groove 104 away from compression chamber center line is big
In the second distance of the oil groove 105 away from compression chamber center line, but it need to be covered by the end plate face of the orbiter 2.Preferably, first
The arc length of oil groove 104 is more than the arc length of the second oil groove 105, to increase lubrication area.
Provided with exhaust cushion chamber 18 at the exhaust outlet 106 of fixed scroll 1 in the present embodiment.Specifically, on fixed scroll 1
Provided with exhaust outlet 106, fixed scroll 1 forms spiral-lock on inner fovea part, inner fovea part in the region where its exhaust outlet 106 and carried out
Mouth 21a dividing plate 21, the space between dividing plate 21 and inner fovea part is defined as being vented cushion chamber 18.At the bottom of exhaust cushion chamber 18
Portion is provided with annular groove 101, and annular groove 101 is connected with first passage, passes through the first radial passage 102, the first axial passage
103 are connected with the first oil groove 104.Moreover, being provided with step 107 at the middle part of exhaust cushion chamber 18, gas and oil separating plant 20 is set
In on step 107.
The shape of gas and oil separating plant 20, material are not also limited in the present embodiment, as long as Oil-gas Separation work(can be realized
Energy.Preferably, gas and oil separating plant 20 is screen pack in the present embodiment, convex hemispherical net centered on screen pack
Face structure, beneficial to the whereabouts of lubricating oil, with preferable separating effect.Meanwhile, sheet metal, gold are provided with the outward flange of screen pack
Category piece is provided with the fixed part for being used for being fixed in exhaust cushion chamber 18.Sheet metal can be pressed on screen pack by the way of flanging
Outward flange.Moreover, being provided with the fixed part of installation bolt on sheet metal, the middle part of exhaust cushion chamber 18 can be bolted on
Step 107 on.
Certainly, the screw compressor that the present embodiment is provided also includes shell and the frame being respectively arranged in shell, song
Axle 5 and drive device；A part for frame is used to support fixed scroll 1 and orbiter 2, and another part is used to support bent axle 5；
Drive device drives orbiter 2 to carry out eccentric rotary by bent axle 5.
Specifically, shell is constituted including constituting casing 11, upper lid 14, the lower cover 10 of confined space；Frame is used including top
It is used for the slave frame 9 of spacing bent axle 5 in the mainframe 4 of spacing scroll plate and bottom；Drive device includes stator, rotor, turns
Sub-set is on bent axle 5.Moreover, being additionally provided with cross slip-ring 3 between orbiter 2 and mainframe 4.Meanwhile, in orbiter 2
The back side, form the first back pressure chamber A and the second back pressure chamber B, and sealed by sealing ring 13.First back pressure chamber A is gases at high pressure, the
Two back pressure chamber B are middle pressure or low pressure.Under the back pressure collective effect of first, second back pressure chamber, orbiter 2 is pressed against quiet
In scroll plate 1, so that compression chamber is sealed.
The course of work of this implementation screw compressor is：
Refrigerant is drawn into from air intake duct 15 in the multiple crescent compression chambers being made up of fixed scroll 1 and orbiter 2
Compression, exhaust outlet 106 from the center of fixed scroll 1 is discharged after the refrigerant in compression chamber is compressed, and is introduced into exhaust cushion chamber
In 18, and flowed towards the outlet 21a of dividing plate 21, when by gas and oil separating plant 20, lubricating oil in refrigerant will be by
Separate, and flow in annular groove 101 that (refrigerant 2 after separation can go out from dividing plate along the cambered surface of gas and oil separating plant 20
Mouth 21a is discharged in the exhaust space of screw compressor), then opened up by the first radial passage 102 radially opened up and axial direction
First axial passage 103 enters in the first oil groove 104, and the first oil groove 104 is opened in the end plate face first position C of fixed scroll 1
(as shown in Figure 2), the first oil groove 104 is looped around scrollwork periphery, and has certain with the outer of compression chamber and orbiter 2
Seal distance, and lived by the end plate cover of orbiter 2.
Meanwhile, the throttling for passing through throttle part 40 under differential pressure action from the hydraulic oil in the bearing hole of orbiter 2 is laggard
Enter in the second oil groove 105.Second oil groove 105 is opened in the end plate face second place D (as shown in Figure 2) of fixed scroll 1.
It can be seen that, in the operation process of orbiter 2, the lubricating oil of the first oil groove 104 and the second oil groove 105 can be to dynamic
The sticking part in fixed scroll end plate face is lubricated, and reduces fretting wear herein.Meanwhile, the lubrication separated from discharge
The lubricating oil that oil and Moving plate bearing hole come out is hydraulic oil, when on the end plate face for acting on orbiter 2, makes orbiter
2, by a downward pressure, have balanced action to back pressure, also reduce the pressing force to orbiter 2.
Moreover, the outlet 21a that the refrigerant after Oil-gas Separation eventually passes through dividing plate 21 enters exhaust space in compressor, because of tool
There is the structure of exhaust cushion chamber 18, it also reduces the exhaust noise of compressor to a certain extent.
Embodiment two
As illustrated in figs. 5-7, the present embodiment two and the identical technology contents not repeated description of embodiment one, the disclosure of embodiment one
Content fall within the disclosure of the present embodiment two, the present embodiment two and the difference of embodiment one be it is following some：
Gas and oil separating plant 20 is orifice filter in the present embodiment, convex hemispherical orifice plate centered on orifice filter
Structure.There are multiple through hole 20a on the orifice filter, can be directly stamped to form by sheet metal.Certainly, gas and oil separating plant 20
Also the material that can have Oil-gas Separation function by other is constituted.
The first oil groove 104, the second oil groove 105 are opened on the end plate face of orbiter 2 respectively in the present embodiment, equally
With the effect for taking into account lubrication and reduction oil extraction rate.In addition it is also possible to which one in the first oil groove 104, the second oil groove 105 is opened
On the end plate face of fixed scroll 1, another is opened on the end plate face of orbiter 2.
In the present embodiment in the first radial passage 102 be provided with throttle part 40, can to separate hydraulic oil (from
The lubricating oil separated in refrigerant) first carry out reducing pressure by regulating flow after then flow into the first oil groove 104, prevent because oil pressure is excessive cause the back of the body
The situation of insufficient pressure.Preferably, throttle part 40 be throttling rod, throttling rod include plug portion and restriction, plug portion it is straight
Footpath is more than the diameter of restriction, and the outer surface of plug portion and restriction is equipped with screw thread.
To sum up, above-mentioned technical proposal of the invention has the advantages that：
1), the present invention provides a kind of screw compressor, by carrying out Oil-gas Separation to the refrigerant discharged from compression chamber, and will
The lubricating oil isolated is introduced to the joint place in the orbiting and fixed scroll end plate face, the fretting wear between reduction the orbiting and fixed scroll end plate
While, it also inhibits the rising of oil extraction rate, the problem of solution can not take into account low oil extraction rate in the prior art.
2), the lubricating oil in orbiter bearing bore can also be introduced to the patch in the orbiting and fixed scroll end plate face simultaneously in the present invention
At conjunction, because the lubricating oil in the lubricating oil and orbiter bearing bore that are separated is hydraulic oil, can make orbiter by
Downward pressure, has balanced action to back pressure.
3), the present invention is provided with exhaust cushion chamber in fixed scroll exhaust gas region so that the refrigerant ejected from compression chamber is first
Be introduced into exhaust cushion chamber, needed after Oil-gas Separation from the outlet of dividing plate could enter compressor in exhaust space, therefore
Also there is the function of reduction compressor air-discharging noise to a certain extent.
4), the first oil groove and the second oil groove in the present invention can be both opened on the end plate face of fixed scroll, again can be with
It is opened on the end plate face of orbiter, its is simple in construction, flexible design.
Embodiments of the invention are provided for the sake of example and description, and are not exhaustively or by this to send out
It is bright to be limited to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Choosing
Select and describe embodiment and be more preferably to illustrate the principle and practical application of the present invention, and make one of ordinary skill in the art
It will be appreciated that the present invention is so as to design the various embodiments with various modifications suitable for special-purpose.
Claims (14)
1. a kind of screw compressor, it is characterised in that including fixed scroll and orbiter, the fixed scroll and orbiter
Between form the compression chamber for compression refrigerant；The exhaust gas region of the fixed scroll is provided with the exhaust being connected with the compression chamber
Gas and oil separating plant is provided with cushion chamber, the exhaust cushion chamber；
At least provided with one at the end plate face that the fixed scroll and orbiter fit and positioned at the periphery of the compression chamber
Individual first oil groove, first oil groove is connected by first passage with the bottom of the exhaust cushion chamber.
2. screw compressor according to claim 1, it is characterised in that fitted in the fixed scroll and orbiter
End plate face at and positioned at the compression chamber periphery at least provided with second oil groove, second oil groove passes through second channel
It is connected with the bearing hole of the orbiter.
3. screw compressor according to claim 2, it is characterised in that the first passage is described including being opened in respectively
The first radial passage and the first axial passage on fixed scroll, first oil groove pass sequentially through the first axial passage, first
Radial passage is connected with the bottom of the exhaust cushion chamber.
4. screw compressor according to claim 3, it is characterised in that the second channel is described including being opened in respectively
The second radial passage and the second axial passage on orbiter, second oil groove pass sequentially through the second axial passage, second
Radial passage is connected with the bearing hole of the orbiter.
5. screw compressor according to claim 4, it is characterised in that first radial passage and or described
Throttle part is provided with two radial passages.
6. screw compressor according to claim 5, it is characterised in that the throttle part is throttling rod, the throttling
One end of bar is plug portion, and the other end is restriction, and the diameter in the plug portion is more than the diameter of the restriction, the plug
Portion and the outer surface of restriction are equipped with screw thread.
7. screw compressor according to claim 2, it is characterised in that first oil groove is opened in the fixed scroll
Or on the end plate face of the orbiter；Second oil groove is opened in the end of the fixed scroll or the orbiter
In plate face.
8. screw compressor according to claim 7, it is characterised in that first oil groove is distinguished with second oil groove
For deep-slotted chip breaker, first oil groove is arranged in order in the periphery of the compression chamber with the second oil groove ecto-entad.
9. screw compressor according to claim 1, it is characterised in that the fixed scroll is provided with exhaust outlet, described
Fixed scroll, which forms spiral-lock on inner fovea part, the inner fovea part in the region where its exhaust outlet, the dividing plate with outlet, described
Space between dividing plate and the inner fovea part is defined as the exhaust cushion chamber.
10. screw compressor according to claim 1, it is characterised in that the bottom of the exhaust cushion chamber is provided with annular
Groove, the annular groove is connected with the first passage；The middle part of the exhaust cushion chamber is provided with step, the Oil-gas Separation
Device is arranged on the step.
11. screw compressor according to claim 1, it is characterised in that the gas and oil separating plant is screen pack, described
Convex hemispherical net surface structure centered on screen pack.
12. screw compressor according to claim 11, it is characterised in that the outward flange of the screen pack is provided with metal
Piece, the sheet metal is provided with the fixed part for being used for being connected with the exhaust cushion chamber.
13. screw compressor according to claim 1, it is characterised in that the gas and oil separating plant is orifice filter, institute
State convex hemispherical AND DEWATERING FOR ORIFICE STRUCTURE centered on orifice filter.
14. screw compressor according to claim 1, it is characterised in that also including shell and be respectively arranged at described
Frame, bent axle and drive device in shell；A part for the frame is used to support the fixed scroll and orbiter, separately
A part is used to support the bent axle；The drive device drives the orbiter eccentric rotary by bent axle.
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| CN201610115537.1A CN105587662B (en) | 2016-03-01 | 2016-03-01 | A kind of screw compressor |
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| CN201610115537.1A CN105587662B (en) | 2016-03-01 | 2016-03-01 | A kind of screw compressor |
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| CN105587662A CN105587662A (en) | 2016-05-18 |
| CN105587662B true CN105587662B (en) | 2017-08-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106352576A (en) * | 2016-08-22 | 2017-01-25 | 广东美的暖通设备有限公司 | Cooling system |
| JP6765263B2 (en) | 2016-09-14 | 2020-10-07 | 日立ジョンソンコントロールズ空調株式会社 | Scroll compressor |
| WO2018130134A1 (en) * | 2017-01-10 | 2018-07-19 | 艾默生环境优化技术(苏州)有限公司 | Compressor |
| CN107061269A (en) * | 2017-06-12 | 2017-08-18 | 美的集团股份有限公司 | Screw compressor |
| CN107806409B (en) * | 2017-10-25 | 2024-06-04 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor |
| DE102018201829A1 (en) * | 2018-02-06 | 2019-08-08 | Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg | Electromotive refrigerant compressor |
| WO2020093924A1 (en) * | 2018-11-06 | 2020-05-14 | 艾默生环境优化技术(苏州)有限公司 | Scroll compressor |
| CN111237189B (en) * | 2018-11-29 | 2024-07-23 | 谷轮环境科技（苏州）有限公司 | Scroll compressor with seal-oil cut-off structure |
| JP6773152B2 (en) * | 2019-02-28 | 2020-10-21 | ダイキン工業株式会社 | Scroll compressor |
| CN113775523A (en) * | 2021-10-14 | 2021-12-10 | 广东美的环境科技有限公司 | Scroll compressor and refrigeration equipment with same |
| CN114033694A (en) * | 2021-12-15 | 2022-02-11 | 广东美的环境科技有限公司 | Throttling device, scroll compressor and temperature control equipment |
| CN114183348B (en) * | 2021-12-17 | 2022-08-26 | 珠海格力电器股份有限公司 | Quiet dish subassembly reaches scroll compressor including it |
| CN114412777B (en) * | 2021-12-24 | 2023-01-10 | 珠海格力电器股份有限公司 | Movable scroll, scroll compressor and air conditioner |
| CN115163493B (en) * | 2022-08-17 | 2024-06-25 | 广东美的环境科技有限公司 | Scroll compressor and refrigeration equipment |
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| CN105587662A (en) | 2016-05-18 |
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Effective date of registration: 20190109 Address after: 528300 Shun Feng Shan Industrial Development Zone, Shunde District, Foshan, Guangdong. Patentee after: GUANGDONG MEIZHI COMPRESSOR Co.,Ltd. Address before: 528311 Penglai Road industrial town, Beijiao Town, Shunde District, Foshan, Guangdong Co-patentee before: MIDEA GROUP Co.,Ltd. Patentee before: GD MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd. |
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Effective date of registration: 20190508 Address after: 528300 3rd floor, 21 Gangqian Road, Industrial Park, Beijiao Town, Shunde District, Foshan City, Guangdong Province Patentee after: GUANGDONG MIDEA ENVIRONMENT TECHNOLOGY Co.,Ltd. Address before: 528300 Shun Feng Shan Industrial Development Zone, Shunde District, Foshan, Guangdong. Patentee before: GUANGDONG MEIZHI COMPRESSOR Co.,Ltd. |
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Effective date of registration: 20191125 Address after: 528300 3rd floor, 21 Gangqian Road, Industrial Park, Beijiao Town, Shunde District, Foshan City, Guangdong Province Co-patentee after: GD MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd. Patentee after: GUANGDONG MIDEA ENVIRONMENT TECHNOLOGY Co.,Ltd. Address before: 528300 3rd floor, 21 Gangqian Road, Industrial Park, Beijiao Town, Shunde District, Foshan City, Guangdong Province Patentee before: GUANGDONG MIDEA ENVIRONMENT TECHNOLOGY Co.,Ltd. |