CN109185148A - A kind of rotor assembly and compressor - Google Patents
A kind of rotor assembly and compressor Download PDFInfo
- Publication number
- CN109185148A CN109185148A CN201811308319.5A CN201811308319A CN109185148A CN 109185148 A CN109185148 A CN 109185148A CN 201811308319 A CN201811308319 A CN 201811308319A CN 109185148 A CN109185148 A CN 109185148A
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- Prior art keywords
- balance weight
- rotor
- density
- mass center
- rotor assembly
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- 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
- F04C29/06—Silencing
-
- 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
- F04C2240/20—Rotors
-
- 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
- F04C2240/80—Other components
- F04C2240/807—Balance weight, counterweight
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The present invention provides a kind of rotor assembly and compressor, the rotor assembly includes: rotor (2), with the central shaft hole (20) that the crankshaft (1) that can accommodate compressor passes through, the crankshaft has rotation axis (10)；Main balance weight (3), lower end in the rotor (2) is set, and the main balance weight (3) is cirque structure, has and accommodate the first receiving hole (30) that the crankshaft (1) passes through, and the main balance weight (3) is made of the material of two or more different densities, the mass center of the main balance weight (3) and the rotation axis (10) is made to there is offset.The effect that the eccentric part of crankshaft can be balanced through the invention, simultaneously because main balance weight is set as cirque structure, it not will form windward side between its outer peripheral surface and cold media gas, so as to effectively reduce the noise of gas-flow resistance and flow perturbation generation, and technique production is simple, high reliablity.
Description
Technical field
The invention belongs to Compressor Technology fields, and in particular to a kind of rotor assembly and compressor.
Background technique
Existing rotary compressor knot design, in order to which balance crankshaft off-centre operation, piston rotate the imbalance generated with compressor,
Semicircular balance weight generally is installed in rotor upper and lower ends, is rotated with compressor and generates centrifugal force, it is inclined to play balance crankshaft
The round effect with piston force rotary centrifugal force of the heart, to reduce vibration of compressor and noise.
For semicircle balance weight in compressor rotary course, windward side and refrigerant generate certain gas-flow resistance, increase
The power consumption of compressor, while strong flow perturbation can be generated, increase the pneumatic noise of compressor.
The gas-flow resistance and flow perturbation noise that balance weight rotation generates how are reduced, is each compressor producer primary study
Project.
Due to rotary compressor in the prior art exist due to balance weight setting and bring balance weight windward side with
The resistance that refrigerant air-flow generates is higher, and generates the technical problems such as the turbulent noise of air-flow in the windward side of balance weight, therefore
Researching and designing of the present invention goes out a kind of rotor assembly and compressor.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that rotary compressor in the prior art is overcome to exist due to flat
Weigh block setting and the higher defect of resistance of bringing balance weight windward side and refrigerant air-flow to generate, to provide a kind of rotor set
Part and compressor.
The present invention provides a kind of rotor assembly comprising:
Rotor, the central shaft hole that the crankshaft of compressor passes through can be accommodated by having, and the crankshaft has rotation axis；
The lower end of the rotor is arranged in main balance weight, and the main balance weight is cirque structure, has described in receiving
The first receiving hole that crankshaft passes through, and the main balance weight is made of the material of two or more different densities, makes the master
The mass center of balance weight and the rotation axis, which exist, to be deviated.
Preferably,
The main balance weight of circular ring shape has the first geometric center to coincide with the rotation axis, and the master is flat
The mass center of weighing apparatus block and first geometric center, which exist, to be deviated.
Preferably,
The outer diameter of the main balance weight is equal with the outer diameter of the rotor, and the main balance weight is installed to the rotor lower end
When, the main balance weight outer peripheral surface and the rotor outer peripheral surface flush, form a cylindrical body.
Preferably,
The main balance weight of circular ring shape includes first of semi-circular shape and semicircular second, and described first
Connect with described second and be formed as the main balance weight of circular ring shape, and first material by the first density is made,
Second material by the second density is made, and first density is greater than second density, so that the main balance
The mass center of block is located at first part.
Preferably,
Further include secondary balance weight, the upper end of the rotor is set, and the secondary balance weight is also cirque structure and has
Have and accommodate the second receiving hole that the crankshaft passes through, and the secondary balance weight is also by the material system of two or more different densities
At, the mass center of the secondary balance weight and the rotation axis are existed deviate.
Preferably,
The pair balance weight also has the second geometric center to coincide with the rotation axis, and the secondary balance weight
Mass center and second geometric center, which exist, to be deviated.
Preferably,
The outer diameter of the pair balance weight is equal with the outer diameter of the rotor, and the pair balance weight is installed to the rotor upper end
When, the outer peripheral surface of the secondary balance weight and the rotor outer peripheral surface flush, form a cylindrical body.
Preferably,
The secondary balance weight of circular ring shape include semi-circular shape third portion and the 4th of semi-circular shape, and the third
Portion and described 4th connect and are formed as the secondary balance weight of circular ring shape, and the third portion is by the material system of third density
At described 4th is made of the material of the 4th density, and the third density is greater than the 4th density, so that described secondary flat
The mass center of weighing apparatus block is located at the part in the third portion.
Preferably,
In the vertical section by the eccentric part, the mass center of the main balance weight is opposite with the mass center of the eccentric part
Ground is located at the two sides of the rotation axis, and the mass center of the pair balance weight and the mass center of the eccentric part are located opposite from the rotation
The same side of shaft axis.
Preferably,
The main balance weight is connected and fixed by the lower end surface of rivet or screw and the rotor and/or the secondary balance
Block is connected and fixed by the lower end surface of rivet or screw and the rotor.
The present invention also provides a kind of compressors comprising preceding described in any item rotor assembly.
A kind of rotor assembly and compressor provided by the invention have the following beneficial effects:
The present invention is by setting cirque structure for main balance weight, and the main balance weight is close by two or more differences
The material of degree is made, makes the mass center of the main balance weight and the rotation axis has offset, enables to main balance weight energy
Equalizing feature of the mass center not on rotation axis enough is constructed by the way that density of material is different, so as to the eccentric part to crankshaft
The effect being balanced, at the same time since main balance weight is set as cirque structure, between outer peripheral surface and cold media gas not
It will form windward side, so as to effectively reduce the noise of gas-flow resistance and flow perturbation generation, and technique production is simple, reliably
Property it is high.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the rotor and main balance weight, secondary balance weight in compressor of the invention；
Fig. 2 is the structural schematic diagram of the main balance weight in compressor of the invention；
Fig. 3 is the schematic diagram of internal structure of compressor of the invention.
Appended drawing reference indicates in figure are as follows:
1, crankshaft；10, rotation axis；11, eccentric part；2, rotor；20, central shaft hole；3, main balance weight；30, first holds
Receive hole；31, first；32, second；4, secondary balance weight；40, the second receiving hole；41, third portion；42, the 4th；5, stator；
6, upper bearing (metal)；7, cylinder；8, lower bearing；9, piston.
Specific embodiment
As shown in Figure 1-3, the present invention provides a kind of rotor assembly comprising:
Rotor 2, the central shaft hole 20 that the crankshaft 1 passes through can be accommodated by having；Crankshaft 1, including rotation axis 10 and partially
Center portion 11, the eccentric part 11 are able to drive the roller rotation of compressor；
The lower end of the rotor 2 is arranged in main balance weight 3, and the main balance weight 3 is cirque structure, has receiving
The first receiving hole 30 that the crankshaft 1 passes through, and the main balance weight 3 is made of the material of two or more different densities, makes
The mass center and the rotation axis 10 for obtaining the main balance weight 3, which exist, to be deviated.
The present invention is by setting cirque structure for main balance weight, and the main balance weight is close by two or more differences
The material of degree is made, makes the mass center of the main balance weight and the rotation axis has offset, enables to main balance weight energy
Equalizing feature of the mass center not on rotation axis enough is constructed by the way that density of material is different, so as to the eccentric part to crankshaft
The effect being balanced, at the same time since main balance weight is set as cirque structure, between outer peripheral surface and cold media gas not
It will form windward side, so as to effectively reduce the noise of gas-flow resistance and flow perturbation generation, and technique production is simple, reliably
Property it is high.
Preferably,
The main balance weight 3 of circular ring shape has the first geometric center to coincide with the rotation axis 10, and described
The mass center of main balance weight 3 and first geometric center, which exist, to be deviated.This is the preferred of the main balance weight of circular ring shape of the invention
Structure type, i.e., so that the center of rotation axis (the first geometric center) of circular ring shape and the rotation axis of rotor coincide, thus
So that the main balance weight of circular ring shape is rotated together with rotor around the rotation axis, to will not form rotation offset and produce
Raw centrifugal force, the mass center of further landlord's balance weight and the first geometric center deviate, can be by the mass center of the offset to crankshaft
Eccentric part play the role of dynamic balance and equalising torque, guarantee the stability of compressor.
Preferably,
The outer diameter of the main balance weight 3 is equal with the outer diameter of the rotor 2, and the main balance weight 3 is installed to the rotor 2
When lower end, the outer peripheral surface flush of the outer peripheral surface of the main balance weight 3 and the rotor 2, form a cylindrical body.This is this hair
Further preferred fit form between bright main balance weight and rotor, i.e., main balance weight is equal with the outer diameter of rotor, and revolves
Turn center line to be overlapped again, i.e., a complete cylindrical body is combined between main balance weight and rotor, to effectively further subtract
Resistance between small main balance weight and cold media gas reduces vibration and noise that air-flow generates.
Preferably,
First 31 of the main balance weight 3 of circular ring shape including semi-circular shape and second 32 semicircular and described
First 31 and described second 32 connects and is formed as the main balance weight 3 of circular ring shape, and it is described first it is 31 close by first
The material of degree is made, and second 32 material by the second density is made, and first density is greater than second density,
So that the mass center of the main balance weight 3 is located at first 31 part.This is the main balance weight of circular ring shape of the invention
Further preferred structure type passes through two parts of semi-circular shape, the material that two semicircle ring portions pass through different densities
It is made, enables to the mass center of main balance weight to be located at the side of the big semicircle ring portion of density, can effectively realize that balance crankshaft is inclined
While center portion power and moment loading, moreover it is possible to reduce gas-flow resistance and vibration noise.
Rotary compressor and its rotor assembly of the invention, the rotor assembly include: rotor, are respectively provided at rotor or more
The main balance weight of end face and secondary balance weight, wherein have axis hole in rotor, major and minor balance weight is cirque structure, circle balance
Block two parts semicircle designs different densities, and two parts semicircle volume is identical, and density is different, therefore left and right two parts semicircle quality is not
Together, balance weight mass center is biased to the big side of density, generates centrifugation towards half big circular direction of quality in compressor rotary course
Power balances the centrifugal force of compressor crank shaft off-centre operation and piston rotation generation.Upper and lower balance weight is circular configuration, is assembled
Cheng Zhong forms a cylindrical body with rotor, therefore balance weight does not have windward side, effectively reduces gas-flow resistance and flow perturbation generates
Noise, and technique production is simple, high reliablity.
Attached drawing 1 describes balance block structure, and powdered metallurgical material designs for full circle, designs the semicircle of two different densities
It suppresses, the density of one of semicircle is b, and the density of another semicircle is a, and mass center is biased to the biggish side of density half
The direction of circle density b when rotating with compressor, generates centrifugal force towards the semicircle side that density is b, plays balance crankshaft bias
Round and piston rotary centrifugal force effect, to reduce vibration of compressor and noise.
Attached drawing 3 describes the assembly method of rotor assembly, and round balance weight is installed in rotor upper and lower end face, and end face is concordant, leads to
Cross screw or rivet interlacement, the direction of upper balance weight and lower balance weight density b and density a install and design on the contrary, generating direction
Opposite centrifugal force, balance weight and air flow contacts part are upper and lower flat without windward side and leeward when compressor drum component rotates
Weigh block and rotor one cylindrical body of composition, effectively reduces the gas-flow resistance generated in rotary course and flow perturbation, reduces pressure
Contracting machine power consumption and noise.
Preferably,
Further include secondary balance weight 4, the upper end of the rotor 2 is set, is connected with the upper end of the rotor 2, and the pair
Balance weight 4 also for cirque structure and has the second receiving hole 40 for accommodating the crankshaft 1 and passing through, and the secondary balance weight 4
It is made of the material of two or more different densities, the mass center of the secondary balance weight 4 and the rotation axis is made to there is offset.
By setting cirque structure for secondary balance weight, and the secondary balance weight is by the material of two or more different densities
Material is made, the mass center of the secondary balance weight and the rotation axis is made to there is offset, enables to secondary balance weight that can pass through
Density of material is different and constructs equalizing feature of the mass center not on rotation axis, carries out so as to the eccentric part to crankshaft flat
The effect of weighing apparatus not will form between outer peripheral surface and cold media gas at the same time since secondary balance weight is set as cirque structure
Windward side, so as to effectively reduce the noise of gas-flow resistance and flow perturbation generation, and technique production is simple, high reliablity.
Preferably,
The pair balance weight 4 has the second geometric center to coincide with the rotation axis 10, and the secondary balance weight 4
Mass center and second geometric center exist deviate.This is the preferred constructive form of the secondary balance weight of circular ring shape of the invention,
I.e. so that the center of rotation axis (the second geometric center) of circular ring shape and the rotation axis of rotor coincide, so that circular ring shape
Secondary balance weight rotated together with rotor around the rotation axis, to rotation offset will not be formed and generate centrifugal force,
The mass center and the first geometric center for further making secondary balance weight deviate, can be by the mass center of the offset to the bias of crankshaft
Dynamic balance and equalising torque play the role of in portion, guarantee the stability of compressor.
Preferably,
The outer diameter of the pair balance weight 4 is equal with the outer diameter of the rotor 2, and the pair balance weight 4 is installed to the rotor 2
When upper end, the outer peripheral surface flush of the outer peripheral surface of the secondary balance weight 4 and the rotor 2, form a cylindrical body.This is this hair
Further preferred fit form between bright secondary balance weight and rotor, i.e., secondary balance weight is equal with the outer diameter of rotor, and revolves
Turn center line to be overlapped again, i.e., a complete cylindrical body is combined between secondary balance weight and rotor, to effectively further subtract
Resistance between small pair balance weight and cold media gas reduces vibration and noise that air-flow generates.
Preferably,
The 4th 42 of the third portion 41 and semi-circular shape of the secondary balance weight 4 including semi-circular shape of circular ring shape, and institute
It states third portion 41 and described 4th 42 connects and be formed as the secondary balance weight 4 of circular ring shape, and the third portion 41 is by third
The material of density is made, and described 4th 42 is made of the material of the 4th density, and the third density is close greater than the described 4th
Degree, so that the mass center of the pair balance weight 4 is located at the part in the third portion 41.This is the secondary balance weight of circular ring shape of the invention
Further preferred structure type, i.e., by two parts of semi-circular shape, the material that two semicircle ring portions pass through different densities
Material is made, and enables to the mass center of secondary balance weight to be located at the side of the big semicircle ring portion of density, can effectively realize balance crankshaft
While eccentric part power and moment loading, moreover it is possible to reduce gas-flow resistance and vibration noise.
Rotary compressor and its rotor assembly of the invention, the rotor assembly include: rotor, are respectively provided at rotor or more
The main balance weight of end face and secondary balance weight, wherein have axis hole in rotor, major and minor balance weight is cirque structure, circle balance
Block two parts semicircle designs different densities, and two parts semicircle volume is identical, and density is different, therefore left and right two parts semicircle quality is not
Together, balance weight mass center is biased to the big side of density, generates centrifugation towards half big circular direction of quality in compressor rotary course
Power balances the centrifugal force of compressor crank shaft off-centre operation and piston rotation generation.Upper and lower balance weight is circular configuration, is assembled
Cheng Zhong forms a cylindrical body with rotor, therefore balance weight does not have windward side, effectively reduces gas-flow resistance and flow perturbation generates
Noise, and technique production is simple, high reliablity.
Attached drawing 1 describes balance block structure, and powdered metallurgical material designs for full circle, designs the semicircle of two different densities
It suppresses, the density of one of semicircle is b, and the density of another semicircle is a, and mass center is biased to the biggish side of density half
The direction of circle density b when rotating with compressor, generates centrifugal force towards the semicircle side that density is b, plays balance crankshaft bias
Round and piston rotary centrifugal force effect, to reduce vibration of compressor and noise.
Attached drawing 3 describes the assembly method of rotor assembly, and round balance weight is installed in rotor upper and lower end face, and end face is concordant, leads to
Cross screw or rivet interlacement, the direction of upper balance weight and lower balance weight density b and density a install and design on the contrary, generating direction
Opposite centrifugal force, balance weight and air flow contacts part are upper and lower flat without windward side and leeward when compressor drum component rotates
Weigh block and rotor one cylindrical body of composition, effectively reduces the gas-flow resistance generated in rotary course and flow perturbation, reduces pressure
Contracting machine power consumption and noise.
Preferably,
In the vertical section by the eccentric part 11, the mass center of the main balance weight 3 and the matter of the eccentric part 11
The heart is located opposite from the two sides of the rotation axis 10, and the mass center of the pair balance weight 4 is opposite with the mass center of the eccentric part 11
Ground is located at the same side of the rotation axis 10.This is the further preferred structure type of rotor assembly of the invention, that is, is passed through
Main balance weight carries out the effect of dynamic balance and equalising torque to the eccentric part of crankshaft, flat by the pair for being located at the same side with eccentric part
Weighing apparatus block can play correcting action to main balance weight, further realize flat to the eccentric dynamic balance and torque of crankshaft, rotor
The effect of weighing apparatus.
Preferably,
The main balance weight 3 is connected and fixed by the lower end surface of rivet or screw and the rotor 2 and/or the pair is flat
Weighing apparatus block 4 is connected and fixed by the lower end surface of rivet or screw and the rotor 2.This is main balance weight and secondary balance weight of the invention
Preferred connection type between rotor can be formed between rotor by way of being spirally connected or riveting and effect is firmly fixed
Fruit rotates together it with rotor, to play the role of power and equalising torque and effect.
Rotor upper surface and lower end surface are respectively mounted balance weight, and end face is concordant, two balance weight density b (first 31) semicircles
Side installation direction on the contrary, structure is full circle design, balance weight and rotor constitute a cylindrical body, can effectively reduce rotation
Gas-flow resistance and flow perturbation.Round balance weight is made of the semicircle of two different densities, in rotary course, not because of semicircle density
Together, balance weight mass center is biased to the big side density b, therefore rotary centrifugal force direction is also the direction of density b.Upper and lower two balance weights
The centrifugal force of generation is contrary, wherein centrifugal force direction and compressor crank shaft that design rotor upper surface balance weight generates are eccentric
Circle is identical with the centrifugal force direction that piston generates, and the centrifugal force direction and compressor crank shaft that rotor lower end surface balance weight generates are eccentric
Circle is contrary with the centrifugal force that piston generates.
Rotor assembly and crankshaft upper end elastic conjunction, in compressor operation, by the effect of stator electromagnet power, rotor set
Part rotates, and drives crankshaft and piston rotation, the centrifugal force and crankshaft eccentric that balance weight, lower balance weight generate on rotor assembly
The centrifugal force that circle, piston generate mutually balances, that is, eliminates the imbalance in compressor operation.And up and down balance weight with turn
Son one cylindrical body of composition, effectively reduces the gas-flow resistance in rotor assembly rotary course and flow perturbation, reduces compressor
Power consumption and noise.
The present invention also provides a kind of compressors comprising preceding described in any item rotor assembly.The present invention is flat by that will lead
Weighing apparatus block and/or secondary balance weight are set as cirque structure, and the major and minor balance weight is by the material of two or more different densities
The mass center and the rotation axis for being made, making the major and minor balance weight, which exist, to be deviated, and enables to major and minor balance weight can
Construct equalizing feature of the mass center not on rotation axis by the way that density of material is different, so as to the eccentric part to crankshaft into
The effect of row balance, at the same time since major and minor balance weight is set as cirque structure, between outer peripheral surface and cold media gas not
It will form windward side, so as to effectively reduce the noise of gas-flow resistance and flow perturbation generation, and technique production is simple, reliably
Property it is high.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.With
It is only the preferred embodiment of the present invention described in upper, it is noted that for those skilled in the art, not
Under the premise of being detached from the technology of the present invention principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as this
The protection scope of invention.
Claims (11)
1. a kind of rotor assembly, it is characterised in that: include:
Rotor (2), the central shaft hole (20) that the crankshaft (1) of compressor passes through can be accommodated by having, and the crankshaft has rotary shaft
Line (10)；
Main balance weight (3), setting is in the lower end of the rotor (2), and the main balance weight (3) is cirque structure, has and hold
The first receiving hole (30) that the crankshaft (1) of receiving passes through, and the main balance weight (3) is by the material of two or more different densities
It is made, the mass center of the main balance weight (3) and the rotation axis (10) is made to there is offset.
2. rotor assembly according to claim 1, it is characterised in that:
The main balance weight (3) of circular ring shape has the first geometric center to coincide with the rotation axis (10), and described
The mass center of main balance weight (3) and first geometric center, which exist, to be deviated.
3. rotor assembly according to claim 2, it is characterised in that:
The outer diameter of the main balance weight (3) is equal with the outer diameter of the rotor (2), and the main balance weight (3) is installed to described turn
When sub (2) lower end, the outer peripheral surface flush of the outer peripheral surface of the main balance weight (3) and the rotor (2), form a cylinder
Body.
4. rotor assembly according to any one of claim 1-3, it is characterised in that:
The main balance weight (3) of circular ring shape includes the first (31) and semicircular second (32) of semi-circular shape, and institute
It states first (31) and second (32) and connects and be formed as the main balance weight (3) of circular ring shape, and described first
(31) it is made of the material of the first density, second (32) are made of the material of the second density, and first density is big
In second density, so that the mass center of the main balance weight (3) is located at the part of first (31).
5. rotor assembly described in any one of -4 according to claim 1, it is characterised in that:
It further include secondary balance weight (4), setting connects in the upper end of the rotor (2), with the upper end of the rotor (2), and described
Secondary balance weight (4) also for cirque structure and has the second receiving hole (40) for accommodating the crankshaft (1) and passing through, and the pair
Balance weight (4) is also made of the material of two or more different densities, make the secondary balance weight (4) mass center and the rotation
There is offset in axis.
6. rotor assembly according to claim 5, it is characterised in that:
The pair balance weight (4) has the second geometric center to coincide with the rotation axis (10), and the secondary balance weight
(4) mass center and second geometric center, which exists, to be deviated.
7. rotor assembly according to claim 6, it is characterised in that:
The outer diameter of the pair balance weight (4) is equal with the outer diameter of the rotor (2), and the pair balance weight (4) is installed to described turn
When sub (2) upper end, the outer peripheral surface flush of the outer peripheral surface of the secondary balance weight (4) and the rotor (2), form a cylinder
Body.
8. the rotor assembly according to any one of claim 5-7, it is characterised in that:
The secondary balance weight (4) of circular ring shape include semi-circular shape third portion (41) and the 4th (42) of semi-circular shape, and
The third portion (41) and the 4th (42), which connect, is formed as the secondary balance weight (4) of circular ring shape, and the third portion
(41) it is made of the material of third density, the 4th (42) are made of the material of the 4th density, and the third density is big
In the 4th density, so that the mass center of the pair balance weight (4) is located at the part of the third portion (41).
9. rotor assembly according to claim 5, it is characterised in that:
The crankshaft (1) includes the eccentric part (11) that the roller of compressor can be driven to rotate, and is passing through the eccentric part
(11) in vertical section, the mass center of the main balance weight (3) and the mass center of the eccentric part (11) are located opposite from the rotation
The two sides of shaft axis (10), the mass center of the pair balance weight (4) and the mass center of the eccentric part (11) are located opposite from the rotation
The same side of shaft axis (10).
10. rotor assembly according to claim 5, it is characterised in that:
The main balance weight (3) is connected and fixed by the lower end surface of rivet or screw and the rotor (2) and/or the pair is flat
Weighing apparatus block (4) is connected and fixed by the lower end surface of rivet or screw and the rotor (2).
11. a kind of compressor, it is characterised in that: including rotor assembly of any of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811308319.5A CN109185148A (en) | 2018-11-05 | 2018-11-05 | A kind of rotor assembly and compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811308319.5A CN109185148A (en) | 2018-11-05 | 2018-11-05 | A kind of rotor assembly and compressor |
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| CN109185148A true CN109185148A (en) | 2019-01-11 |
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| CN201811308319.5A Pending CN109185148A (en) | 2018-11-05 | 2018-11-05 | A kind of rotor assembly and compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110707844A (en) * | 2019-10-21 | 2020-01-17 | 珠海凌达压缩机有限公司 | Wind resistance reduction rotor, motor and compressor |
| CN112324639A (en) * | 2020-11-03 | 2021-02-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Counterweight structure and compressor with same |
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| CN106807818A (en) * | 2016-12-22 | 2017-06-09 | 杭州丰源铜业有限公司 | A kind of the red of compression pump motor balancing block that produce rushes technique |
| WO2017121335A1 (en) * | 2016-01-14 | 2017-07-20 | 艾默生环境优化技术(苏州)有限公司 | Rotary machine |
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| JPS63215893A (en) * | 1987-03-03 | 1988-09-08 | Matsushita Electric Ind Co Ltd | Enclosed rotary compressor |
| KR20050032422A (en) * | 2003-10-01 | 2005-04-07 | 삼성전자주식회사 | Variable capacity rotary compressor |
| CN202132229U (en) * | 2011-06-22 | 2012-02-01 | 广东美芝制冷设备有限公司 | Rotary compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110707844A (en) * | 2019-10-21 | 2020-01-17 | 珠海凌达压缩机有限公司 | Wind resistance reduction rotor, motor and compressor |
| CN112324639A (en) * | 2020-11-03 | 2021-02-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Counterweight structure and compressor with same |
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Application publication date: 20190111 |