CN103821712A - Refrigeration compressor and a method for assembling such a refrigeration compressor - Google Patents
Refrigeration compressor and a method for assembling such a refrigeration compressor Download PDFInfo
- Publication number
- CN103821712A CN103821712A CN201310579135.3A CN201310579135A CN103821712A CN 103821712 A CN103821712 A CN 103821712A CN 201310579135 A CN201310579135 A CN 201310579135A CN 103821712 A CN103821712 A CN 103821712A
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- refrigeration compressor
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims description 10
- 230000006835 compression Effects 0.000 claims abstract description 28
- 238000007906 compression Methods 0.000 claims abstract description 28
- 239000003507 refrigerant Substances 0.000 claims abstract description 4
- 230000033001 locomotion Effects 0.000 claims description 18
- 230000008602 contraction Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000386 athletic effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C29/0071—Couplings between rotors and input or output shafts acting by interengaging or mating parts, i.e. positive coupling of rotor and shaft
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- 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/06—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for stopping, starting, idling or no-load operation
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/008—Prime movers
-
- 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
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- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/06—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for stopping, starting, idling or no-load operation
-
- 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
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/0085—Prime movers
-
- 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
- F04C2240/60—Shafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
The present invention discloses a refrigeration compressor (2) that includes: an electric motor having a stator (23) and a rotor (21) provided with an axial through passage (22); a compression unit (8) adapted for compressing refrigerant; and a drive shaft (24) adapted for driving the compression unit (8), the drive shaft (24) extending into the axial through passage (22) of the rotor. The rotor (21) is slide-fitted on the drive shaft (24).
Description
Technical field
The present invention relates to a kind of refrigeration compressor, relate to especially a kind of swirl type cold compressor.
Background technique
Known swirl type cold compressor comprises:
-thering is the motor of stator and rotor, described rotor is provided with axial passage;
-being suitable for the scroll compression unit of compressed refrigerant, it comprises moving scroll element and determines scroll element, and
-be suitable for the live axle of the moving scroll element of drive compression unit, this live axle extends into the axial passage of rotor, and be fixed to tightly rotor (for example by press-fit coordinate or thermal shrinkage coordinate live axle and rotor are fixed).
In the time of compression motor start-up, rotor has along the trend that in the direction of compression unit, light axial moves.Because rotor is fixed on live axle, this can cause live axle and moving scroll element that corresponding axial motion occurs.This athletic meeting of moving scroll element is determining to produce excessive active force between scroll element and moving scroll element, and therefore can damage moving scroll element and determine scroll element, or can damage the seal element between the end plate that is arranged in the scroll of moving scroll element and determines scroll element.
In addition,, in the time of this refrigeration compressor operation, the bending of the distortion of live axle, particularly live axle can be passed to rotor and then can damage rotor.
Further, in the time of this refrigeration compressor operation, the change in torque occurring in motor will cause vibration, and this vibration is passed to axle and scroll compression unit, can damage some element of scroll compression unit.
Summary of the invention
The object of the invention is to propose a kind of improved refrigeration compressor, it can solve the problems referred to above that traditional refrigeration compressor runs into.
Another object of the present invention is to propose a kind of refrigeration compressor reliably.
Refrigeration compressor according to the present invention comprises:
-thering is the motor of stator and rotor, described rotor is provided with axial passage;
-be suitable for the compression unit of compressed refrigerant;
-be suitable for driving the live axle of described compression unit, described live axle to extend into the axial passage of described rotor and be connected to described rotor, in use, described live axle extends substantially vertically, and
-being fixed on the positioning element on described live axle, described positioning element has axial stop surface, and the underpart of described rotor leans against in described axial stop surface, and described axial stop surface is arranged to be slidably matched with the underpart of described rotor,
Wherein, the connection between described rotor and described live axle is provided in the startup of refrigeration compressor and normal course of operation and can allows, between described rotor and described live axle, limited relative movement occurs.
At refrigeration compressor run duration, this mounting type of rotor allows rotor to have little angular motion with respect to stator, and this has been avoided the mechanical tension of self-powered moving axis to be in the future delivered to rotor, and has suppressed the vibration causing because of the change in torque in motor.The inhibition of this vibration has reduced the noise level of compressor, and has suppressed to pass to the vibration of the pipeline that is connected to compressor.
In addition, in the time that air compressor motor starts, this mounting type of rotor allows rotor to have little axial motion with respect to live axle, and this has reduced moving scroll element in the impact of determining on scroll element.
Thus, according in the running of refrigeration compressor of the present invention, any damage of rotor and compression unit can be prevented.
According to one embodiment of the invention, interference fit (fit interference) value between rotor and live axle is less than 0.0003, and described interference fit value is to calculate by following formula: FI=(D
dS– D
r)/D
r, wherein, FI is the interference fit value between rotor and live axle, D
dSthe outer diameter of the part of the axial passage that extends through rotor of live axle, D
rit is the inner diameter of rotor.This interference fit value can be negative value, in this case, gapped between rotor and live axle.For example, this cooperation value can be between-0.005 to+0.0003.
According to one embodiment of the invention, rotor is slidably mounted on live axle, this means that maximum interference cooperation value is 0.
Rotor this do not need the mounting type that rotor is imposed restriction, and can allow to make rotor to have little angle and axial motion with respect to stator.
In addition, this mounting type of rotor, has avoided employing thermal shrinkage assembling mode that rotor is fixed to live axle, thereby has avoided making rotor to be exposed in high temperature.Therefore, the present invention allows to use the IPM(inner permanent magnetic body that comprises the permanent magnet that at high temperature can lose magnetism) rotor.
According to one embodiment of the invention, rotor is slidably mounted on live axle with slip cooperating relationship, this slip cooperating relationship be arranged to allow occur between rotor and live axle limited relative angle to and/or axial sliding movement.In other words, rotor is to be arranged on live axle with mode axial and/or angle gap.
This refrigeration compressor also comprises locking member, and described locking member is suitable for described live axle to be connected to rotationally described rotor.For example, described locking member can be made up of nonmagnetic substance.
According to one embodiment of the invention, locking member is suitable for allowing limited relative angle occurring to sliding movement between described rotor and described live axle.
According to one embodiment of the invention, the outer surface of described live axle has the first longitudinal fluting, the internal surface of described rotor has the second longitudinal fluting, and described the first and second longitudinal flutings circumferentially align, and described locking member extends into described the first and second longitudinal flutings.
According to an aspect of the present invention, described locking member be slidably mounted on described the first and second longitudinal flutings one of at least in.
According to an aspect of the present invention, the cross-sectional sizes of the cross-sectional sizes of described locking member and described the first and second longitudinal flutings is suitable for allowing occurring between rotor and live axle limited sliding movement to axial.
According to an aspect of the present invention, the cross-sectional sizes of the cross-sectional sizes of described locking member and described the first and second longitudinal flutings is suitable for allowing limited relative angle occurring to sliding movement between rotor and live axle.
Being arranged on described epitrochanterian the second longitudinal fluting can extend along the whole length of described rotor substantially.
According to one embodiment of the invention, positioning element is the positioning ring that is fixed to live axle.
According to one embodiment of the invention, positioning element is assembled to described live axle with thermal contraction mode.For example, positioning element can be made up of nonmagnetic substance.
According to an aspect of the present invention, this refrigeration compressor further comprises and is arranged on the described epitrochanterian first axial abutment surface and is arranged on the axial abutment surface of second on described live axle, between the described first and second axial abutment surfaces, leave predetermined axial clearance, to allow that limited motion to axial occurs between described live axle and described rotor.For example, predetermined axial clearance is between 0.005 to 1mm, and preferably between 0.5 to 1mm.
According to one embodiment of the invention, live axle has the radially end difference that defines the second axial abutment surface.
According to one embodiment of the invention, the described first and second axial abutment surfaces are arranged to prevent that described rotor from axially moving and exceeding precalculated position towards described compression unit.
The described first axial abutment surface can be arranged on rotor on the end face of compression unit.
According to one embodiment of the invention, described refrigeration compressor is swirl type cold compressor.
According to an aspect of the present invention, described live axle has the first end of the active part that is suitable for drive compression unit.
According to one embodiment of the invention, described rotor is IPM rotor.
The invention still further relates to a kind ofly for assembling the method according to refrigeration compressor of the present invention, it comprises the steps:
-described rotor is connected to described live axle, thus at startup and the normal operation period of described refrigeration compressor, allow, between described rotor and described live axle, limited relative movement occurs, and
-described positioning element is fixed to described live axle, the underpart of described rotor is leaned against in the axial stop surface of described positioning element.
According to an aspect of the present invention, above-mentioned Connection Step comprises described rotor is slidably installed to described live axle.
Described method may further include following steps:
-along live axle towards compression unit drive rotor, be resisted against until be arranged on epitrochanterian the first annular abutment surface the second annular abutment surface being arranged on live axle,
-positioning element is fixed to live axle, make itself and rotor have certain axial distance, this axial distance is corresponding with predetermined axial clearance.
The one alternative aspect according to the present invention, the method may further include following steps:
-along live axle towards compression unit drive rotor, be resisted against until be arranged on described epitrochanterian the first annular abutment surface the second annular abutment surface being arranged on described live axle,
-positioning element is fixed to live axle, make the axial stop surface of positioning element be resisted against the underpart of rotor.
According to an aspect of the present invention, described fixing step comprises positioning element is assembled to described live axle with thermal contraction mode.
This method also can comprise the steps:
-by the first longitudinal fluting and the alignment of the second longitudinal fluting,
-locking member is inserted in the first longitudinal fluting and the second longitudinal fluting.
According to an aspect of the present invention, described inserting step comprises locking member is slidably installed at least one of the first longitudinal fluting and the second longitudinal fluting.
By reading following description and with reference to the accompanying drawing of enclosing, will understand these and other advantage of the present invention.Wherein these accompanying drawings show according to refrigeration compressor of the present invention embodiment with nonrestrictive way of example.
Accompanying drawing explanation
Read together by reference to the accompanying drawings and will understand better the following embodiment who describes in detail of the present invention.But, it should be understood that, the present invention is not limited to disclosed specific embodiment.
Fig. 1 is the longitudinal sectional drawing according to swirl type cold compressor of the present invention.
Fig. 2 is the enlarged view of the detail section of Fig. 1.
Fig. 3 is the enlarged view of the detail section of Fig. 2.
Fig. 4 is the exploded perspective view of the detail section of the refrigeration compressor in Fig. 1.
Fig. 5 is the stereogram of the different elements shown in Fig. 4.Fig. 5 is the exploded perspective view of the detail section of the refrigeration compressor in Fig. 1.
Embodiment
Fig. 1 shows a kind of swirl type cold compressor 2 of vertical placement.But, without its structure is made to obvious change in the situation that, also can slant setting or horizontal positioned according to refrigeration compressor 2 of the present invention.
Refrigeration compressor 2 shown in Fig. 1 comprises the closure 3 being limited by housing 4.The top of this housing 4 and bottom are sealed by top cover 5 and base 6 respectively.
Refrigeration compressor 2 also comprises the support frame 7 being fixed in closure 3.This closure 3 and support frame 7 define low pressure volume below support frame 7, and define high pressure volume above support frame 7.
This refrigeration compressor 2 also comprises the scroll compression unit 8 that is arranged in support frame 7 tops (, in high pressure volume).This scroll compression unit 8 have cooperatively interact determine scroll element 9 and moving scroll element 11.Especially, moving scroll element 11 by the upper side supporting of support frame 7 and with its upper side sliding contact, determine scroll element 9 and fix with respect to closure 3.Determine scroll element 9 and for example can be fixed to support frame 7.
Be known that determining scroll element 9 has end plate 12 and scroll 13.This scroll 13 is stretched to moving scroll element 11 from end plate 12.Moving scroll element 11 has end plate 14 and scroll 15, and this scroll 15 is stretched to and determined scroll element 9 from end plate 14.The scroll 15 of moving scroll element 11 and to determine the scroll 13 of scroll element 9 interlaced to form multiple compression chamber 16 between them.Compression chamber 16 has variable volume.Made track when movable when moving scroll element 11 drives with respect to determining scroll element 9, the volume of compression chamber is from outer toward interior minimizing.In compression chamber 16, compressed refrigeration agent is overflowed from determining the middle of scroll element 9 and moving scroll element 11 by the opening 17 of determining in scroll element 9, guides high-pressure chamber 18 into, and the refrigeration agent after the compression in this high-pressure chamber 18 is discharged from by exhaust outlet 19.
Refrigeration compressor 2 also comprises the motor that is arranged in support frame 7 belows.This motor comprises the stator 23 that is provided with the rotor 21 of axial passage 22 and arranges around rotor 21.Motor can be for example speed-variable motor, and rotor 21 can be for example IPM rotor.
Refrigeration compressor 2 also comprises live axle 24.This live axle 24 is suitable for driving moving scroll element 11 to do orbiting.Live axle 24 stretches into the axial passage 22 of rotor 21 and is connected to rotationally rotor 21, makes live axle 24 can drive rotor 21 around pivot axis.
The bottom of live axle 24 drives oil pump 27.Oil pump 27 will be supplied to the grease channel 30 in the core that is formed on live axle 24 from the oil of fuel tank (it is defined by closure 3).
According to the present invention, rotor 21 is slidably installed to live axle 24.
As shown in Figure 2, refrigeration compressor 2 comprises and is arranged on the first ring shaped axial abutment surface 28 on rotor 21 and is arranged on the second ring shaped axial abutment surface 29 on live axle 24.As Fig. 3 specifically illustrates, between the first and second axial abutment surfaces 28 and 29, be provided with predetermined axial clearance, it is in order to allow, between rotor 21 and live axle 24, sliding movement to axial occurs.For example, this predetermined axial clearance is between 0.5 to 1 millimeter.
Especially, the first ring shaped axial abutment surface 28 is arranged on the upper-end surface of rotor 21, and live axle 24 has the radially end difference that defines the second ring shaped axial abutment surface 29.The first and second ring shaped axial abutment surfaces 28,29 are arranged to prevent that rotor 21 from exceeding precalculated position with respect to live axle 24 towards compression unit 8 axial motions.
Refrigeration compressor 2 also comprises the positioning ring 31 that is fixed to live axle 24.Described positioning ring 31 can for example be assembled to live axle 24 in the mode of thermal shrinkage.Advantageously, positioning ring 31 is made up of nonmagnetic substance.
Positioning ring 31 has axial stop surface 32, and the underpart of rotor 21 (say more accurately, be arranged on the axial abutment surface 33 on the underpart of rotor 21) is resisted against on this stop surface 32.Therefore, positioning ring 31 is set up in order to axially locating rotor 21.
Refrigeration compressor 2 also comprises stop pin 34.This stop pin 34 is suitable for live axle 24 to be connected to rotationally rotor 21.Stop pin 34 for example can be made up of nonmagnetic substance.
Stop pin 34 stretches into respectively the first longitudinal fluting 35 on the outer surface that is arranged on live axle 24 and is arranged on the second longitudinal fluting 36 on the internal surface of rotor 21.This first and second longitudinal fluting 35,36 circumferentially align (circumferentially aligned).The cross-sectional sizes of the cross-sectional sizes of stop pin 34 and the first and second longitudinal flutings 35,36 be arranged to allow to occur between rotor 21 and live axle 24 relative axially and angle sliding movement.According to embodiment shown in figure, stop pin 34 can be a bit larger tham the first longitudinal fluting 35, and stop pin 34 is pressed into and is engaged in the first longitudinal fluting 35 thus, and stop pin 34 is slidably assemblied in the second longitudinal fluting 36.But stop pin 34 also can be slidedly assemblied in the first and second longitudinal flutings 35,36 simultaneously.
The second longitudinal fluting 36 being arranged on rotor 21 can extend along the whole length of rotor 21.Advantageously, the partial-length of the first 35 of longitudinal flutings along live axle 24 extends, and defines axial stop surface 37 for the upper end of stop pin 34.Further, the axial stop surface 32 being arranged on positioning ring 31 has also formed the axial stop for the lower end of stop pin 34.
Comprise at least following steps for assembling according to the method for refrigeration compressor 2 of the present invention:
-stop pin 34 close fit are entered in the first longitudinal fluting 35, so that the upper-end surface of stop pin 34 is against the axial stop surface 37 being arranged on live axle 24;
-engage upper rotor part 21 from the underpart of live axle 24 around live axle 24;
-make stop pin 34 aim at the second longitudinal fluting 36;
-along live axle 24 towards compression unit 8 drive rotors 21, until the first annular abutment surface 28 being arranged on rotor 21 is resisted against the second annular abutment surface 29 being arranged on live axle 24;
-heating positioning ring 31;
-engage positioning ring 31 from the underpart of live axle 24 around live axle 24;
-be positioned to make itself and the radial abutment surface 33 being arranged on rotor 21 to there is certain axial distance the stayed surface of positioning ring 31 32, this axial distance is corresponding with predetermined axial clearance, and
-cooling positioning ring 31.
After assembling completes, refrigeration compressor 2 is vertically placed.Therefore, rotor 21 axially slides along live axle 24 due to gravity, until the radial abutment surface 33 being arranged on rotor 21 is resisted against on the stayed surface 32 of positioning ring 31.So introduced predetermined axial clearance between the first and second axial abutment surfaces 28,29.
It should be noted that above-mentioned positioning step can comprise is positioned to make it to abut against the radial abutment surface 33 being arranged on rotor 21 stayed surface of positioning ring 31 32.In this case, cooling due to positioning ring 31, finally can be between the first and second axial abutment surfaces 28,29 the very little axial clearance (several microns) of formation.
Certainly, the invention is not restricted to the above embodiment who describes by non-limiting example, but contained on the contrary all possible mode of execution.
Claims (11)
1. a refrigeration compressor (2), comprising:
-thering is the motor of stator (23) and rotor (21), described rotor (21) is provided with axial passage (22);
-be suitable for the compression unit (8) of compressed refrigerant;
-be suitable for driving the live axle (24) of described compression unit (8), described live axle (24) extend into the axial passage (22) of described rotor and are connected to described rotor (21), in use, described live axle (24) extends substantially vertically, and
-be fixed on the positioning element (31) on described live axle (24), described positioning element (31) has axial stop surface, the underpart of described rotor (21) is resisted against in described axial stop surface, and described axial stop surface is arranged to be slidably matched with the underpart of described rotor (21)
Wherein, the connection between described rotor (21) and described live axle (24) is provided in the startup of refrigeration compressor and normal course of operation and can allows, between described rotor (21) and described live axle (24), limited relative movement occurs.
2. refrigeration compressor according to claim 1, is characterized in that, described rotor (21) is slidably mounted on described live axle (24).
3. refrigeration compressor according to claim 1 and 2, is characterized in that further comprising locking member (34), and described locking member is suitable for described live axle (24) to be connected to rotationally described rotor (21).
4. refrigeration compressor according to claim 3, it is characterized in that, the outer surface of described live axle (24) has the first longitudinal fluting (35), the internal surface of described rotor (21) has the second longitudinal fluting (36), described the first longitudinal fluting (35) and described the second longitudinal fluting (36) circumferentially align, and described locking member (34) extends into described the first longitudinal fluting (35) and described the second longitudinal fluting (36).
5. according to the refrigeration compressor described in claim 3 or 4, it is characterized in that, described locking member is suitable for allowing limited relative angle occurring to sliding movement between described rotor and described live axle.
6. according to the refrigeration compressor described in any one in claim 1 to 5, it is characterized in that, described positioning element (31) is for being fixed to the positioning ring of described live axle.
7. according to the refrigeration compressor described in any one in claim 1 to 6, it is characterized in that, described positioning element (31) is assembled to described live axle (24) with thermal contraction mode.
8. according to the refrigeration compressor described in any one in claim 1 to 7, it is characterized in that further comprising and be arranged on the first axial abutment surface (28) on described rotor (21) and be arranged on the second axial abutment surface (29) on described live axle (24), between the described first axial abutment surface (28) and the described second axial abutment surface (29), leave predetermined axial clearance, in order to allow, between described live axle (24) and described rotor (21), limited motion to axial occurs.
9. refrigeration compressor according to claim 8, wherein, the described first axial abutment surface (28) and the described second axial abutment surface (29) are arranged to prevent that described rotor (21) from axially moving and exceeding preposition towards described compression unit (8).
10. for assembling according to a method for the refrigeration compressor (2) described in claim 1 to 9 any one, comprise the steps:
-described rotor (21) is connected to described live axle (24), thus at startup and the normal operation period of described refrigeration compressor, allow, between described rotor (21) and described live axle (24), limited relative movement occurs, and
-described positioning element (31) is fixed to described live axle (24), the underpart of described rotor (21) is resisted against in the axial stop surface of described positioning element (31).
11. methods according to claim 10, wherein, described Connection Step comprises described rotor (21) is slidably installed to described live axle (24).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1260987A FR2998339A1 (en) | 2012-11-19 | 2012-11-19 | REFRIGERATION COMPRESSOR AND METHOD FOR ASSEMBLING SUCH A REFRIGERATION COMPRESSOR |
| FR12/60987 | 2012-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103821712A true CN103821712A (en) | 2014-05-28 |
Family
ID=48050852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310579135.3A Pending CN103821712A (en) | 2012-11-19 | 2013-11-18 | Refrigeration compressor and a method for assembling such a refrigeration compressor |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20140140866A1 (en) |
| CN (1) | CN103821712A (en) |
| DE (1) | DE102013019089A1 (en) |
| FR (1) | FR2998339A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794961A (en) * | 2016-01-28 | 2020-10-20 | 特灵国际有限公司 | Twist-lock type boltless fixed scroll to frame joint |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102370499B1 (en) | 2020-03-25 | 2022-03-04 | 엘지전자 주식회사 | Rotary compressor |
| KR102370523B1 (en) | 2020-03-25 | 2022-03-04 | 엘지전자 주식회사 | Rotary compressor |
| KR102349747B1 (en) | 2020-05-22 | 2022-01-11 | 엘지전자 주식회사 | Rotary compressor |
| KR102387189B1 (en) * | 2020-05-22 | 2022-04-15 | 엘지전자 주식회사 | Rotary compressor |
| KR102378399B1 (en) | 2020-07-03 | 2022-03-24 | 엘지전자 주식회사 | Rotary compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010012489A1 (en) * | 1999-12-21 | 2001-08-09 | Yoshiaki Harakawa | Sealed-type electric compressor having refrigerant passage |
| JP2005155554A (en) * | 2003-11-27 | 2005-06-16 | Toyota Industries Corp | Electric roots type compressor |
| CN2799904Y (en) * | 2005-06-22 | 2006-07-26 | 上海三电贝洱汽车空调有限公司 | Overload protection mechanism of compressor |
| CN101004174A (en) * | 2006-01-20 | 2007-07-25 | 株式会社丰田自动织机 | Electric pump for hydrogen circulation |
| CN102782323A (en) * | 2010-01-08 | 2012-11-14 | 三星电子株式会社 | Hermetic compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040202549A1 (en) * | 2003-01-17 | 2004-10-14 | Barton Russell H. | Liquid ring pump |
| TWM371791U (en) * | 2009-05-27 | 2010-01-01 | Hanbell Precise Machinery Co Ltd | Screw compressor |
| JP5482706B2 (en) * | 2011-03-28 | 2014-05-07 | 株式会社豊田自動織機 | Compressor with transmission |
-
2012
- 2012-11-19 FR FR1260987A patent/FR2998339A1/en not_active Withdrawn
-
2013
- 2013-11-14 DE DE102013019089.4A patent/DE102013019089A1/en not_active Withdrawn
- 2013-11-18 CN CN201310579135.3A patent/CN103821712A/en active Pending
- 2013-11-19 US US14/084,093 patent/US20140140866A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010012489A1 (en) * | 1999-12-21 | 2001-08-09 | Yoshiaki Harakawa | Sealed-type electric compressor having refrigerant passage |
| JP2005155554A (en) * | 2003-11-27 | 2005-06-16 | Toyota Industries Corp | Electric roots type compressor |
| CN2799904Y (en) * | 2005-06-22 | 2006-07-26 | 上海三电贝洱汽车空调有限公司 | Overload protection mechanism of compressor |
| CN101004174A (en) * | 2006-01-20 | 2007-07-25 | 株式会社丰田自动织机 | Electric pump for hydrogen circulation |
| CN102782323A (en) * | 2010-01-08 | 2012-11-14 | 三星电子株式会社 | Hermetic compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794961A (en) * | 2016-01-28 | 2020-10-20 | 特灵国际有限公司 | Twist-lock type boltless fixed scroll to frame joint |
| CN111794961B (en) * | 2016-01-28 | 2022-10-11 | 特灵国际有限公司 | Twist-lock type boltless fixed scroll to frame joint |
Also Published As
| Publication number | Publication date |
|---|---|
| US20140140866A1 (en) | 2014-05-22 |
| DE102013019089A1 (en) | 2014-05-22 |
| FR2998339A1 (en) | 2014-05-23 |
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