CN101334020A - A hermetic type compressor - Google Patents

A hermetic type compressor Download PDF

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Publication number
CN101334020A
CN101334020A CNA2008100914712A CN200810091471A CN101334020A CN 101334020 A CN101334020 A CN 101334020A CN A2008100914712 A CNA2008100914712 A CN A2008100914712A CN 200810091471 A CN200810091471 A CN 200810091471A CN 101334020 A CN101334020 A CN 101334020A
Authority
CN
China
Prior art keywords
rotor
radial bearing
type compressor
running shaft
elastic member
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.)
Pending
Application number
CNA2008100914712A
Other languages
Chinese (zh)
Inventor
尹珉哲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Gwangju Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Samsung Gwangju Electronics Co Ltd filed Critical Samsung Gwangju Electronics Co Ltd
Publication of CN101334020A publication Critical patent/CN101334020A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/32—Balls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/18—Leaf springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B31/00—Compressor arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/50—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/50—Intrinsic material properties or characteristics
    • F05B2280/5001—Elasticity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2230/00—Purpose; Design features
    • F16F2230/22—Pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S267/00—Spring devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps
    • Y10S417/902—Hermetically sealed motor pump unit

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compressor (AREA)

Abstract

The invention discloses a closed-type compressor, the objective of the invention is to provide a closed-type compressor capable of inhibiting vertical vibration of a rotor and a rotary shaft to reduce abrasion and noise between parts. The closed-type compressor includes the rotary shaft of which the upper part is pressed into the rotor, the lower end is formed into an eccentric part, the circumference between the rotor and the eccentric part is rotatablely supported by a radial bearing fixed on a fixing bracket, and a flexible assembly used for flexibly bearing between the radial bearing and the eccentric part.

Description

Hermetic type compressor
Technical field
The present invention relates to a kind of hermetic type compressor, relate in particular to and to reduce because the wearing and tearing between the parts that the vibration of the above-below direction of rotor produces and the hermetic type compressor of noise.
Background technique
Usually, hermetic type compressor is used in the cooling cycle system of refrigerator or air conditioner, and refrigeration agent is compressed.Hermetic type compressor forms its outward appearance by seal container, and its inside is provided with to be provided the driver element of compressible drive power and receives driving force and refrigeration agent is carried out the compression unit of compression from driver element refrigeration agent, and this driver element and compression unit are provided with by fixing frame.
Described driver element is made of stator and the rotor that can be rotatably set in this stator inboard, and this rotor is according to rotating with the electromagnetic interaction of this stator.In hermetic type compressor, there is a kind of compression unit that this driver element is located at the top of seal container and will be provided with assemblies such as piston to be located at the hermetic type compressor of the bottom of seal container.
Wherein, for the superposed hermetic type compressor of driver element, described stator is fixed in fixing frame top gabarit side, and described rotor rotatably is located at the stator inboard.
And described compression unit comprises piston and cylinder, and is located at the bottom of fixing frame.The driving force of described driver element is delivered to compression unit by running shaft.
Described running shaft connects the central authorities of fixing frame and is provided with, and is pressed into described rotor on the top of the running shaft of fixing frame upside, and forms the eccentric part of eccentric rotation in the lower end of the running shaft of fixing frame downside, and this eccentric part is connected with connecting rod by piston.
Therefore, rotate by the electromagnetic interaction between stator and the rotor, then be pressed into and when the running shaft of rotor also rotates together, make the eccentric rotation of described eccentric part if having the hermetic type compressor rotor of this structure.Thus, the piston that is connected with connecting rod by eccentric part carries out compression to refrigeration agent when cylinder interior is carried out the straight line back and forth movement.
In addition, the running shaft periphery between described rotor and the eccentric part is rotatably supported by the radial bearing that is arranged at fixing frame.Fixing frame is fixed in this radial bearing its underpart, and its top is contacted with rotor and is supported.
And the oily storage area that stores machine oil is formed on the bottom of described seal container, and the eccentric part lower end of described running shaft is combined with centrifugal force by running shaft with the machine oil of this oily storage area oil suction parts to the top suction.And the inside of running shaft is formed with oil circuit, and to be used for guiding to by the machine oil that the oil suction parts will be sucked into top the friction slip portion of driver element and compression unit, this oil circuit also is formed on the outside of radial bearing sidespin rotating shaft.
Therefore, when refrigeration agent is carried out compression, if running shaft rotation, then the machine oil of described oily storage area is sucked into by the oil suction parts under the state on top, is sent to as the friction slip portion of compression unit between radial bearing and the running shaft and driver element along described oil circuit and carries out lubrication.
But, when the existing hermetic type compressor of Gou Chenging is carried out compression to refrigeration agent as mentioned above, because the up-down vibration of rotor and running shaft is collided between radial bearing and the eccentric part and between radial bearing and the rotor repeatedly, thereby cause excessive wear and generation abnormal sound between the parts.
That is, during the work of described driver element, described rotor changes into mechanical energy with the form of rotating with electric energy in the magnetic field of stator, and should form consistent with the magnetic field center of rotor for the described stator of stable rotation of rotor.But when causing the magnetic field center of stator and rotor inconsistent because of the variation in the impact of outside or magnetic field sometimes, described rotor is subjected to the thrust of above-below direction and moves to top.And, when described running shaft high speed rotating and the quantity delivered of the machine oil supplied with to described oil circuit are excessive, move according to the described axial rotary of this oil pressure top.As mentioned above, some when move on top in rotor and the running shaft, interconnective another also can be followed together and move to top.And the rotor and the running shaft that move to top move to the bottom again according to deadweight.Rotor and running shaft are because of carrying out this phenomenon up-down vibration repeatedly.
So, during the rotor up-down vibration, the lower end and the described eccentric part that are fixed in the radial bearing of described fixing frame collide repeatedly, and the upper end of radial bearing and described rotor collide repeatedly, and the over worn abnormal sound that produces simultaneously takes place described thus rotor/radial bearing/eccentric part each other.
Summary of the invention
The present invention proposes in order to address the above problem, and its purpose is to provide a kind of wearing and tearing that suppress the up-down vibration of rotor and running shaft and reduce to take place between the parts and the hermetic type compressor of noise.
To achieve these goals, hermetic type compressor provided by the present invention comprises: the periphery that running shaft, its top are pressed between rotor, lower end formation eccentric part, described rotor and the eccentric part is rotatably supported by the radial bearing that is fixed in fixing frame; Elastic member is to be used between described radial bearing of elastic support and the eccentric part.
And, be provided with first friction in the lower end of described radial bearing and the running shaft periphery between the described elastic member and reduce the unit, to be used to reduce the friction between described radial bearing and the elastic member.
And described first friction reduces the unit and comprises first ball bearing and first thrust washer, and described first thrust washer is supported on described elastic member top, and described first ball bearing is located between described first thrust washer and the radial bearing lower end.
And the running shaft periphery between the upper end of described radial bearing and the described rotor is provided with second friction and reduces the unit, to be used to reduce the friction between described radial bearing and the rotor.
And described second friction reduces the unit and comprises second ball bearing and second thrust washer, and described second ball bearing is supported on described radial bearing upper end, and described second thrust washer is located between described second ball bearing and the rotor.
And described elastic member is a leaf spring.
And described elastic member comprises: be supported on the supporting portion of described eccentric part, this supporting portion has the axle joining hole of the periphery that makes described elastic member be attached to described running shaft; Extending portion, this extending portion prolongs to upper outside obliquely from described supporting portion.
Description of drawings
The integrally-built sectional drawing of the hermetic type compressor that Fig. 1 is provided for a preferred embodiment of the present invention;
Intercept running shaft in the hermetic type compressor that Fig. 2 is provided for a preferred embodiment of the present invention, be used to sandwich the radial bearing of running shaft, the sectional drawing that first and second friction reduces unit, elastic member exploded representation;
Fig. 3 is in the hermetic type compressor that the preferred embodiments of the present invention provided, the stereogram of elastic member structure;
In the hermetic type compressor that Fig. 4 is provided for a preferred embodiment of the present invention, illustrate elastic member buffer function want portion's sectional drawing, it has represented the state that move on rotor and axial rotary top;
In the hermetic type compressor that Fig. 5 is provided for a preferred embodiment of the present invention, illustrate elastic member buffer function want portion's sectional drawing, it has represented the state that move rotor and axial rotary bottom.
Main symbol description
50: running shaft 51: eccentric part
60: radial bearing 70: elastic member
71: support part 72: extending portion
Friction in 80: the first reduces by 81: the first ball bearings in unit
The friction in 90: the second of 82: the first thrust washers reduces the unit
92: the second thrust washers of 91: the second ball bearings
Embodiment
Below, describe embodiment provided by the present invention in detail with reference to accompanying drawing.
As shown in Figure 1, hermetic type compressor provided by the present invention forms its outward appearances by seal container 10, is provided with respectively and will guides to the suction pipe 11 of seal container 10 inside and will guide to the discharge tube 12 of condenser side at seal container 10 inner compressed refrigeration agents through the refrigeration agent of the vaporizer of cooling cycle system at a side of seal container 10 and opposite side.
And, being provided with in the inside of described seal container 10 provides the driver element 30 of compressible drive power and receives driving forces and refrigeration agent is carried out the compression unit 20 of compression from driver element 30 refrigeration agent, and this driver element 30 and compression unit 20 are provided with by fixing frame 40.
Wherein, driver element 30 has the stator 31 of the top gabarit side that is fixed in described fixing frame 40 and rotatably is located at the rotor 32 of stator 31 inboards, and this rotor 32 is according to rotating with the electromagnetic interaction of stator 31.
And described compression unit 20 has: be located at the cylinder 21 of bottom one side of fixing frame 40, this cylinder 21 forms as one with fixing frame 40 and forms pressing chamber 21a in the inner space; Can carry out the piston 22 of straight line back and forth movement in pressing chamber 21a inside; Be incorporated into the cylinder head 23 of cylinder 21 1 ends, to be used for airtight pressing chamber 21a.Cylinder head 23 has refrigeration agent suction chamber 23a and the refrigeration agent severed mutually and discharges chamber 23b, wherein refrigerated medium suction chamber 23a is connected with described suction pipe 11 and refrigeration agent is guided to pressing chamber 21a, and described refrigerated medium discharge chamber 23b is connected with discharge tube 12 and will guides to discharge tube 12 at the compressed refrigeration agent of pressing chamber 21a.Be provided with valving 24 between described cylinder head 23 and the cylinder 21, be drawn into pressing chamber 21a or be discharged to the flow direction that refrigeration agent is discharged the refrigeration agent of chamber 23b from pressing chamber 21a to be used to control from refrigeration agent suction chamber 23a.
And the driving force of described driver element 30 is delivered to compression unit 20 by running shaft 50.
Running shaft 50 is arranged to connect the central authorities of fixing frame 40, is pressed into the center of described rotor 32 on the top of the running shaft 50 of fixing frame 40 upper side, and the lower end of the running shaft 50 of fixing frame 40 bottoms forms the eccentric part 51 of eccentric rotation.
Be connected the straight line back and forth movement that rotatablely moves and convert piston 22 to the off-centre that is used for eccentric part 51 between this eccentric part 51 and the described piston 22 with connecting rod 25.The periphery of the running shaft 50 between rotor 32 and the eccentric part 51 is for the through hole 41 that its lower end can be sandwiched in be formed on the fixing frame central part and rotatably supported by the radial bearing 60 that is arranged at fixing frame 40.At this, the upper end of radial bearing 60 is clamped by rotor 32, and the lower end of radial bearing 60 is clamped by the support platform 51a of eccentric part 51 upsides.
Radial bearing 60 is sandwiched in its lower end under the state of described through hole 41, will be incorporated on the fixing frame 40 by fixing bolt 100 from the supporting portion 61 that its side prolongs in order to be supported on the top of fixing frame 40, thereby is located at fixing frame 40.The bottom of rotor 32 forms the upper end that can make described radial bearing 60 and is contained in the rotor inboard.And, the lower-upper length that makes the length of the rotor 32 of radial bearing 60 upsides and the running shaft between the eccentric part 51 slightly be longer than described radial bearing 60 for the smooth rotation of rotor 32 and running shaft 50.
And the hermetic type compressor that present embodiment provided is provided with the oil lubrication structure, to be used for by the driver element 30 between oil lubricating such as running shaft 50 and the radial bearing 60 and the friction slip portion of compression unit 20.
That is, the oily storage area 13 of the machine oil that stores prearranging quatity is formed on the bottom of seal container 10.And, in eccentric part 51 lower ends of described running shaft 50 oil suction parts 110 are set, to be used to utilize of the upwards suction of machine oil of the centrifugal force of running shaft 50 with oily storage area 13.And, form oil circuit 52 at running shaft 50, guide to the friction slip portion of driver element 30 and compression unit 20 with the machine oil that is used for being sucked by oil suction parts 110.
Oil circuit 52 comprises: be formed at the first oil circuit 52a of described eccentric part 51 inboards, to be used for that machine oil is guided to top; Be formed at the second oil circuit 52b of radial bearing 60 sidespin rotating shafts 50 outsides, this second oil circuit 52b is communicated with the first oil circuit 51a; Be formed at the 3rd oil circuit (not shown) of the side of the first oil circuit 52a, to be used for that machine oil is guided to connecting rod 25 and piston 22 sides.
When being rotated motion according to compression running shaft 50 to refrigeration agent, machine oil by this oil lubrication structure oil storage area 13 is sucked into top along oil suction parts 110, so the machine oil that is sucked to top is sent to driver element 30 along described oil circuit 52 and carries out lubrication with the friction slip portion of compression unit 20, again be recovered to oily storage area 13 afterwards, thereby carry out lubrication repeatedly friction slip portion.At this moment, lubricate between described running shaft 50 and the radial bearing 60 by the machine oil that flows along the described second oil circuit 52b.
In addition, during 30 work of described driver element, described rotor 32 changes into mechanical energy with the form of rotating with electric energy in the magnetic field of stator 31, and should form consistent with the magnetic field center of rotor 32 for the described stator 31 of the stable rotation of rotor 32.But, cause the magnetic field center of stator 31 and rotor 32 not consistent because of the impact of outside or the variation in magnetic field sometimes, described rotor 32 was subjected to the thrust of above-below direction and moved to top this moment.And, when described running shaft 50 high speed rotating and the quantity delivered of the machine oil supplied with to the described second oil circuit 52b are excessive, move to top according to the described running shaft of this oil pressure 50.As mentioned above, some when move on top in rotor 32 and the running shaft 50, interconnective another also can be followed together and move to top, and the rotor 32 and the running shaft 50 that move to top move to the bottom again according to deadweight.Rotor 32 and running shaft 50 are because of carrying out this phenomenon up-down vibration repeatedly.
So, when rotor 32 and running shaft 50 up-down vibration, the lower end and the described eccentric part 51 that are fixed in the radial bearing 60 of described fixing frame 40 collide repeatedly, and the upper end of radial bearing 60 and described rotor 32 collide repeatedly, produces abnormal sound when the excessive wear phenomenon takes place rotor 32/ radial bearing 60/ eccentric part 51 each other thus.As shown in Figures 2 and 3, hermetic type compressor provided by the present invention is in order to suppress the up-down vibration of this rotor 32 and running shaft 50, be provided for elastic member 70 between elastic support radial bearing 60 and the eccentric part 51 in running shaft 50 peripheries between described radial bearing 60 and the eccentric part 51, this in the present embodiment elastic member 70 is a leaf spring.
Therefore, if by between this elastic member 70 elastic support radial bearings 60 and the eccentric part 51, then the up-down vibration of rotor 32 and running shaft 50 is absorbed inhibition by this elastic member 70.
Described elastic member 70 comprises: be supported on the supporting portion 71 of described eccentric part 51, this supporting portion 71 has the axle joining hole 71a of the periphery that makes described elastic member 70 be attached to described running shaft 50; The a pair of extending portion 72 that tilts to prolong to upper outside from described supporting portion 71.Described supporting portion 71 is in order to be formed flatly with stable contact of described eccentric part 51, and the end of described each extending portion 72 is provided with the thrust washer contacting part 72a that is formed flatly equally, to be used to contact first thrust washer 82 described later.Absorb the vibration of running shaft 50 and rotor 32 under the state that this elastic member 70 is supported by eccentric part 51 in its supporting portion 71 by supporting portion 71 and the telescopic action between the thrust washer contacting part 72a.Fig. 4 and Fig. 5 represent that respectively rotor 32 and running shaft 50 are to top (arrow A direction) mobile state and the Vibrant buffer effect that elastic member 70 is carried out under bottom (arrow B direction) mobile state.
And, always contacted by the upper end of the state lower radial bearing 60 of elastic support by described elastic member 70 between the lower end of radial bearing 60 and the eccentric part 51, and the lower end of radial bearing 60 always is contacted with elastic member 70 with rotor 32.Therefore, the up-down vibration of rotor 32 and running shaft 50 is absorbed by the buffer function of described elastic member 70, but when 50 rotations of rotor 32 and running shaft, can excessive friction between radial bearing 60 and rotor 32 and the eccentric part 51 and exist obstruction rotor 32 and running shaft 50 to do the hidden danger that rotatablely moves smoothly.
Thereupon, in the hermetic type compressor that present embodiment provided, be provided with the first friction reduction unit 80 that is used to reduce the friction between described radial bearing 60 and the elastic member 70 in the lower end of radial bearing 60 and running shaft 50 peripheries between the elastic member 70, be provided with the second friction reduction unit 90 that is used to reduce the friction between radial bearing 60 and the rotor 32 in the upper end of described radial bearing 60 and running shaft 50 peripheries between the described rotor 32.
Wherein, described first friction reduces unit 80 and is made of first ball bearing 81 and first thrust washer 82, described first thrust washer 82 with described thrust washer contacting part 72a state of contact by sliding support in elastic member 70 tops, described first ball bearing 81 is located between described first thrust washer 82 and radial bearing 60 lower ends and the support of rolling.
And, described second friction reduces unit 90 and is made of second ball bearing 91 and second thrust washer 92, described second ball bearing 91 rolls and is supported in described radial bearing 60, and described second thrust washer 92 is arranged between second ball bearing 91 and the rotor 32 and between this second ball bearing 91 of sliding support and the rotor 32.
Thus, described first friction reduces unit 80 and is located between the lower end and elastic member 70 of described radial bearing 60, described second friction reduces unit 90 and is located between radial bearing 60 upper ends and the rotor 32, the up-down vibration that suppresses rotor 32 and running shaft 50 under this state by described elastic member 70, and the lower end of radial bearing 60 and upper end contact with rotor 32 with elastic member 70 with the state that reduces friction respectively and supported, thus rotatablely moving of also can being well on of rotor 32 and running shaft 50.
In sum, hermetic type compressor provided by the present invention is by being arranged at journal bearing and rotating shaft Eccentric part between elastomeric element suppress the up-down vibration of rotating shaft and rotor, thereby prevent radial axle The top and bottom of holding and rotor and eccentric part reduce to take place between it when taking place to collide effectively Excessive wear phenomenon and abnormal sound.
And first friction reduces the unit and is located between described elastomeric element and the journal bearing lower end second Friction reduces the unit and is located between rotor and the journal bearing upper end, therefore, suppresses by described elastomeric element The up-down vibration of rotor and rotating shaft, simultaneously the lower end of journal bearing and upper end are respectively with elastomeric element with turn to The state contact that son reduces with friction, thus hermetic type compressor provided by the present invention has rotor and revolves The advantage that rotatablely moves that rotating shaft can be well on.

Claims (7)

1, a kind of hermetic type compressor is characterized in that comprising: the periphery that running shaft, its top are pressed between rotor, lower end formation eccentric part, described rotor and the eccentric part is rotatably supported by the radial bearing that is fixed in fixing frame; Elastic member is to be used between described radial bearing of elastic support and the eccentric part.
2, hermetic type compressor according to claim 1, it is characterized in that being provided with first friction in the lower end of described radial bearing and the running shaft periphery between the described elastic member reduces the unit, to be used to reduce the friction between described radial bearing and the elastic member.
3, hermetic type compressor according to claim 2 is characterized in that described first friction reduces the unit and comprises first ball bearing and first thrust washer,
Described first thrust washer is supported on described elastic member top, and described first ball bearing is located between described first thrust washer and the radial bearing lower end.
4, hermetic type compressor according to claim 1 and 2 is characterized in that the upper end of described radial bearing and the running shaft periphery between the described rotor are provided with second friction and reduce the unit, to be used to reduce the friction between described radial bearing and the rotor.
5, hermetic type compressor according to claim 4 is characterized in that described second friction reduces the unit and comprises second ball bearing and second thrust washer,
Described second ball bearing is supported on described radial bearing upper end, and described second thrust washer is located between described second ball bearing and the rotor.
6, hermetic type compressor according to claim 1 is characterized in that described elastic member is a leaf spring.
7, hermetic type compressor according to claim 6 is characterized in that described elastic member comprises: be supported on the supporting portion of described eccentric part, this supporting portion has the axle joining hole of the periphery that makes described elastic member be attached to described running shaft; Extending portion, this extending portion prolongs to upper outside obliquely from described supporting portion.
CNA2008100914712A 2007-06-26 2008-04-17 A hermetic type compressor Pending CN101334020A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070062688 2007-06-26
KR1020070062688A KR100855255B1 (en) 2007-06-26 2007-06-26 Hermetic type compressor

Publications (1)

Publication Number Publication Date
CN101334020A true CN101334020A (en) 2008-12-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2008100914712A Pending CN101334020A (en) 2007-06-26 2008-04-17 A hermetic type compressor

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CN (1) CN101334020A (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62251479A (en) 1986-04-25 1987-11-02 Hitachi Ltd Enclosed compressor
KR0182136B1 (en) * 1996-07-12 1999-05-01 삼성전자주식회사 Hermetic compressor
KR100382452B1 (en) * 2000-12-29 2003-05-09 삼성광주전자 주식회사 Hermetic Compressor
KR20050011917A (en) * 2003-07-24 2005-01-31 삼성광주전자 주식회사 Hermetic Reciprocating Compressor
KR20050121103A (en) * 2004-06-21 2005-12-26 삼성광주전자 주식회사 Hermetic compressor

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