CN107061269A - Screw compressor - Google Patents
Screw compressor Download PDFInfo
- Publication number
- CN107061269A CN107061269A CN201710444975.7A CN201710444975A CN107061269A CN 107061269 A CN107061269 A CN 107061269A CN 201710444975 A CN201710444975 A CN 201710444975A CN 107061269 A CN107061269 A CN 107061269A
- Authority
- CN
- China
- Prior art keywords
- rotor
- screw compressor
- bent axle
- eccentric
- housing
- 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
Links
- 230000006835 compression Effects 0.000 claims abstract description 22
- 238000007906 compression Methods 0.000 claims abstract description 22
- 230000005484 gravity Effects 0.000 claims description 23
- 238000010276 construction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 49
- 239000003507 refrigerant Substances 0.000 description 12
- 239000010687 lubricating oil Substances 0.000 description 9
- 238000001816 cooling Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 206010008469 Chest discomfort Diseases 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0021—Systems for the equilibration of forces acting on the pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
Abstract
The invention discloses a kind of screw compressor, including：Housing, housing is provided with air entry and exhaust outlet；Compression mechanical part, compression mechanical part is located in housing, and compression mechanical part includes bent axle, fixed scroll, orbiter and balance element, and bent axle has the eccentric part coordinated with orbiter, and balance element is located on bent axle；Motor, motor is located in housing and including stator and rotor, it is enclosed on bent axle to drive crank rotation outside rotor, rotor includes Part I and Part II, Part II extends upward through the through hole of rotor provided with least one in the axle of bent axle, when screw compressor is run, the second eccentric power cooperation that the first eccentric force of the generation of poor quality of Part I and Part II is produced with balance element is to balance the centrifugal force that eccentric part and orbiter are produced.According to the screw compressor of the present invention, simple in construction, cost is relatively low, while the functional of motor, reliability are high.
Description
Technical field
The present invention relates to field of fluid machinery, more particularly, to a kind of screw compressor.
Background technology
Screw compressor because its efficiency high, small volume, light weight, operate steadily the advantages of be widely used in air-conditioning and
In the systems such as heat pump.In the course of work of screw compressor, the eccentric operating of the eccentric part of orbiter and bent axle can be produced
Centrifugal force, in order to overcome in above-mentioned centrifugal force, correlation technique, sets main balance weight on bent axle, while at the end of rotor body
Portion sets secondary balance weight.However, because secondary balance weight is nonmagnetic substance, it is different from the material of rotor body, and secondary balance weight
Need with rotor body to be connected by way of screw or riveting, so that cause the part of screw compressor more, it is complicated,
Processing efficiency is low, cost is high.
Moreover, during screw compressor continuously works, the rotor of electronics runs at high speed so that the stator of motor and
Rotor heating heats up, and temperature is too high to influence the Performance And Reliability of motor.In correlation technique, the refrigerant after overcompression is arranged
Into the high pressure chest where motor so that passage flowing of the refrigerant between stator and the housing of screw compressor, to reach pair
The purpose that motor is cooled.However, refrigerant can only cool down the stator of motor in said process, it is impossible to cool down motor center section
Rotor so that cooling effect is bad, have impact on the reliability of motor so that the performance of motor can not be played further.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.Therefore, the present invention proposes a kind of whirlpool
Revolve compressor, the screw compressor it is simple in construction, cost is relatively low, while the functional of motor, reliability are higher.
Screw compressor according to embodiments of the present invention, including：Housing, the housing is provided with air entry and exhaust outlet；
Compression mechanical part, the compression mechanical part is located in the housing, and the compression mechanical part includes bent axle, fixed scroll, dynamic whirlpool
Capstan and balance element, the bent axle have the eccentric part coordinated with the orbiter, and the balance element is located on the bent axle；
Motor, the motor is located in the housing and including stator and rotor, is enclosed on the bent axle to drive song outside the rotor
Axle is rotated, and the rotor includes Part I and Part II, and the Part II is provided with least one in the bent axle
Axle extends upward through the through hole of the rotor, during the screw compressor operation, the matter of the Part I and the Part II
The second eccentric power cooperation that the first eccentric force and the balance element that amount difference is produced are produced is to balance the eccentric part and described dynamic
The centrifugal force that scroll plate is produced.
Screw compressor according to embodiments of the present invention, by setting at least one on the Part II of rotor along bent axle
The through hole for axially penetrating through rotor so that the Part I and Part II of rotor produce it is of poor quality so that in screw compressor
During operation, the second eccentric power cooperation that the first eccentric force and balance element of above-mentioned generation of poor quality are produced is to balance eccentric part and dynamic
The centrifugal force that scroll plate is produced, so as to reduce the part of screw compressor, reduces cost, while being realized well to motor
Cooling, it is ensured that the Performance And Reliability of motor.
According to some embodiments of the present invention, on the cross section of the rotor, described in the Zhou Changwei of the Part II
The half of rotor overall circumference, consequently facilitating through hole is arranged on the second portion.
According to some embodiments of the present invention, the through hole is multiple, so as to set through hole according to actual conditions
Number, preferably to meet practical application.
According to some embodiments of the present invention, circumferential uniform intervals distribution of multiple through holes along the rotor, so as to
In the ropy position of centre of gravity for the position of centre of gravity, Part I and Part II for grasping Part II, so as to facilitate rotor
Assembling.
According to some embodiments of the present invention, the shape of multiple through holes is identical, so as to facilitate adding for multiple through holes
Work.
According to some embodiments of the present invention, the cross section of the through hole is formed as polygon, circle or ellipse so that
The various shapes of through hole.
According to some embodiments of the present invention, the center of gravity of the balance element and the center of gravity of the Part II are located at the song
The homonymy of axle, so that the second eccentric force that the first eccentric force of generation of poor quality is produced with balance element can preferably coordinate with flat
Weigh eccentric part and the centrifugal force of orbiter operating generation.
According to some embodiments of the present invention, in the first plane, the orthographic projection of the center of gravity of the balance element and the song
Line between the orthographic projection of the central axis of axle is the first line, the orthographic projection of the center of gravity of the Part II and the bent axle
Central axis orthographic projection between line be the second line, the angle between first line and second line is
α, α are met：α≤10 °, first plane is the cross section of the rotor so that the first eccentric force and the second eccentric force can be with
Further preferably coordinate to balance the centrifugal force that eccentric part and orbiter operating are produced.
It is provided with to be formed in oil sump, the bent axle according to some embodiments of the present invention, in the housing and runs through in the axial direction
Its oil supplying hole, provided with the Oil Guide part extending into the oil sump in the oil supplying hole, so that lubricating oil in oil sump can be with
Bearing, orbiter and fixed scroll are lubricated successively, to extend the life-span of screw compressor.
According to some embodiments of the present invention, the aperture of the part provided with the Oil Guide part of the oil supplying hole is more than institute
The aperture of the remainder of oil supplying hole is stated, is easy to lubricating oil to flow into oil supplying hole, and flowed up along oil supplying hole.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 is the profile of screw compressor according to embodiments of the present invention；
Fig. 2 is the assembling schematic diagram of bent axle, balance element, rotor and the Oil Guide part of the screw compressor shown in Fig. 1；
Fig. 3 is another assembling schematic diagram of bent axle shown in Fig. 2, balance element, rotor and Oil Guide part；
Fig. 4 is the profile of the rotor shown in Fig. 2；
Fig. 5 is the top view of the rotor shown in Fig. 4.
Reference：
Screw compressor 100, the first line 100a, the second line 100b,
Housing 1, air entry 1a, exhaust outlet 1b, oil sump 1c, upper lid 11, casing 12, lower cover 13,
Compression mechanical part 2, bent axle 21, oil supplying hole 21a, eccentric part 211,
Fixed scroll 22, back pressure hole 22a, orbiter 23, balance element 24,
Motor 3, stator 31, rotor 32, Part I 321, Part II 322, through hole 322a,
Oil Guide part 4, the first frame 5, spill port 5a, back pressure cavity 5b, the second frame 6.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " vertical ", " longitudinal direction ", " transverse direction ", " on ",
" under ", "left", "right", " bottom ", " interior ", " outer ", " axial direction ", the orientation of the instruction such as " circumference " or position relationship is based on accompanying drawing institute
The orientation or position relationship shown, is for only for ease of the description present invention and simplifies description, rather than indicate or imply signified dress
Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the limit of the present invention
System.In addition, defining " first ", one or more this feature can be expressed or be implicitly included to the feature of " second ".
In the description of the invention, unless otherwise indicated, " multiple " are meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Screw compressor 100 according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 5.
As Figure 1-Figure 5, screw compressor 100 according to embodiments of the present invention, including housing 1, the and of compression mechanical part 2
Motor 3.
Housing 1 is provided with air entry 1a and exhaust outlet 1b, and compression mechanical part 2 is located in housing 1, and compression mechanical part 2 includes
Bent axle 21, fixed scroll 22, orbiter 23 and balance element 24, bent axle 21 have the eccentric part 211 coordinated with orbiter 23,
Balance element 24 is located on bent axle 21.Motor 3 is located in housing 1, and motor 3 includes being enclosed on outside stator 31 and rotor 32, rotor 32
To drive bent axle 21 to rotate on bent axle 21, rotor 32 includes Part I 321 and Part II 322, and Part II 322 is provided with
At least one extends upward through the through hole 322a of rotor 32 in the axle of bent axle 21, when screw compressor 100 is run, Part I 321
The the second eccentric power cooperation produced with the first eccentric force of the generation of poor quality of Part II 322 and balance element 24 is to balance bias
The centrifugal force that portion 211 and orbiter 23 are produced.
For example, as Figure 1-Figure 5, housing 1 can include upper lid 11, casing 12 and the lower cover 13 being sequentially connected up and down,
Wherein casing 12 can be with substantially cylindrical, and air entry 1a and exhaust outlet 1b can be located on casing 12, but not limited to this, and inhales
It is provided with gas port 1a at air intake duct, exhaust outlet 1b and is provided with blast pipe.Compression mechanical part 2 can be located at the top in housing 1, quiet whirlpool
Capstan 22 can be fixed in the first frame 5 in housing 1, and the first frame 5 is fixedly linked with housing 1.Eccentric part 211 can be set
In the upper end of bent axle 21, and eccentric part 211 coordinates to drive orbiter 23 to do eccentric operating with orbiter 23 so that up and down
The compression chamber of multiple crescent cylinders is limited between the orbiter 23 and fixed scroll 22 of fastening.Balance element 24 can be arranged
On bent axle 21, and balance element 24 and the eccentric setting of bent axle 21, that is to say, that in the center of gravity of balance element 24 and the rotation of bent axle 21
There is eccentric throw between heart axis, so as to during bent axle 21 is rotated, drive the eccentric rotary of balance element 24 to produce second
Eccentric force.Motor 3 can be located at the lower section of the first frame 5, wherein, rotor 32 is located inside stator 31, and bent axle 21, which is located in, to be turned
In the centre bore of son 32 so that rotor 32, which is rotated, to be rotated by band dynamic crankshaft 21 to drive orbiter 23 to operate.Rotor
32 can be made up of the superposition of some silicon steel sheets, wherein be formed with least one along bent axle 21 on the Part II 322 of rotor 32
The through hole 322a of the upper and lower end face of rotor 32 is axially penetrated through, and through hole 322a can vertically extend, so that Part I
321 is different from the quality of Part II 322, there is of poor quality, during rotor 32 is rotated, above-mentioned of poor quality to produce
Raw first eccentric force, so that the first eccentric force and the second eccentric power cooperation are transported with balancing eccentric part 211 and the bias of orbiter 23
Change the line of production raw centrifugal force.
Furthermore, when screw compressor 100 is run, rotor 32 drives orbiter 23 to do eccentric fortune by bent axle 21
Turn, refrigerant flow to the multiple compression chambers limited between orbiter 23 and fixed scroll 22 from air intake duct by air entry 1a
Interior, the high pressure refrigerant formed after the completion of compression can be discharged in discharge chamber upwards by steam vent, and then high pressure refrigerant is passed sequentially through
Between between gap, stator 31 and the housing 1 between gap, the first frame 5 and housing 1 between fixed scroll 22 and housing 1
Gap flow to the lower section of motor 3 from up to down, and then high pressure refrigerant is bottom-up passes through through hole 322a with to the rotor inside motor 3
32 are cooled down, are cooled, certainly, in the process, and high pressure refrigerant can be with bottom-up through stator 31 and rotor 32
Gap, final high pressure refrigerant discharged by exhaust outlet 1b from blast pipe.
Thus, rotor 32 is axially penetrated through by setting at least one on the Part II 322 of rotor 32 along bent axle 21
Through hole 322a so that the Part I 321 and Part II 322 of rotor 32 produce it is of poor quality so that in screw compressor 100
Running, the first eccentric force of above-mentioned generation of poor quality is with the second eccentric power cooperation of the eccentric rotary of balance element 24 generation with flat
The centrifugal force that eccentric part 211 and the eccentric operating of orbiter 23 of weighing are produced, so as to ensure the even running of screw compressor 100
Under the premise of, without setting secondary balance weight, the structure of rotor 32 is simplified, the part of screw compressor 100 is reduced, reduces into
This, improves processing efficiency, meanwhile, refrigerant can be cooled down by through hole 322a to the rotor 32 inside motor 3, to motor
3 realize good cooling, it is ensured that the Performance And Reliability of motor 3.
Screw compressor 100 according to embodiments of the present invention, by setting at least one on the Part II 322 of rotor 32
The individual through hole 322a for axially penetrating through rotor 32 along bent axle 21 so that the Part I 321 and Part II 322 of rotor 32 are produced
It is of poor quality so that when screw compressor 100 is run, the first eccentric force and balance element 24 of above-mentioned generation of poor quality produce the
Two eccentric power cooperations are to balance the centrifugal force that eccentric part 211 and orbiter 23 are produced, so as to reduce screw compressor 100
Part, reduces cost, while realizing good cooling to motor 3, it is ensured that the Performance And Reliability of motor 3.
In a particular embodiment of the present invention, on the cross section of rotor 32, the Zhou Changwei rotors 32 of Part II 322 are total
The half of girth.For example, as shown in Figure 3 and Figure 5, rotor 32 be generally formed into it is columnar structured, will along the longitudinal section of rotor 32
32 points of rotor is Part I 321 and Part II 322, the half of the overall circumference of Zhou Changwei rotors 32 of Part II 322, so that
Facilitate arrangements of the through hole 322a on Part II 322.Here, it is necessary to which explanation, " overall circumference of rotor 32 " refers to first
The girth of part 321 and the girth sum of Part II 322.It is understood that on the cross section of rotor 32, Part II
322 girth can also be set to 1/3,2/3 etc. with the ratio of the overall circumference of rotor 32 according to actual conditions, preferably to meet reality
Apply on border.
In the alternative embodiment of the present invention, through hole 322a is multiple.For example, in Fig. 3 and Fig. 5 example, second
322 are divided to be provided with five through hole 322a, and circumferential uniform intervals distributions of five through hole 322a along rotor 32, consequently facilitating grasping
The ropy position of centre of gravity of the position of centre of gravity of Part II 322, Part I 321 and Part II 322, and then facilitate and turn
The assembling of son 32.
Certainly, through hole 322a can also be set to one, and when through hole 322a is multiple, multiple through hole 322a arrangement
Mode can be set according to actual conditions, preferably to meet actual demand.
In some specific embodiments of the present invention, as shown in Figure 3 and Figure 5, multiple through hole 322a shape is identical, so that
Multiple through hole 322a processing is facilitated, it is high in machining efficiency.It is understood that multiple through hole 322a shape can also be set
To differ.
Alternatively, through hole 322a cross section is formed as polygon, circle or ellipse, so that through hole 322a shape is more
Sample, can choose the through hole 322a of suitable shape, preferably to meet actual demand according to actual conditions.Certainly, through hole
322a cross section can also be other regular or irregular shapes, such as annular, petal.
In some embodiments of the invention, the center of gravity of balance element 24 and the center of gravity of Part II 322 are located at bent axle 21
Homonymy.For example, as shown in Fig. 2-Fig. 3, the center of gravity of balance element 24 is located at the left side of bent axle 21, because through hole 322a is located at bent axle 21
Left side, then the center of gravity of Part II 321 be located at bent axle 21 left side, screw compressor 100 run during, first
Divide the first eccentric force and the second eccentric force of the eccentric operating of balance element 24 generation of 321 and the generation of poor quality of Part II 322
Direction towards the opposite side of bent axle 21 so that the first eccentric force and the second eccentric force preferably can coordinate to balance eccentric part
211 and orbiter 23 operating produce centrifugal force.
As shown in Fig. 2 because eccentric part 211 is located at the upper end of bent axle 21, rotor 32 is located at the lower section of eccentric part 211, puts down
The part 24 that weighs is located between eccentric part 211 and rotor 32, therefore during bent axle 21 and balance element 24, rotor 32 are assembled, puts down
The center of gravity of part 24 that weighs is located at the homonymy of bent axle 21, and the center of gravity and balance element 24 of eccentric part 211 with the center of gravity of Part II 322
Center of gravity be located at the opposite side of bent axle 21 so that centrifugal force and above-mentioned second that eccentric part 211 and orbiter 23 are produced are eccentric
The direction of power is towards the opposite side of bent axle 21, to realize the centrifugal force and the first bias of eccentric part 211 and the generation of orbiter 23
The balance of power, the second eccentric force.
Further, as shown in figure 3, in the first plane, the orthographic projection of the center of gravity of balance element 24 and the center of bent axle 21
Line between the orthographic projection of axis is the first line 100a, the orthographic projection of the center of gravity of Part II 322 and the center of bent axle 21
Line between the orthographic projection of axis is the second line 100b, and the angle between the first line 100a and the second line 100b is α,
α is met：α≤10 °, wherein, the first plane is the cross section of rotor 32.Thus, by setting the first line 100a and second to connect
Angle between line 100b is α≤10 ° so that Part I 321 and the first eccentric force of the generation of poor quality of Part II 322
The direction of the second eccentric force produced with the eccentric operating of balance element 24 is approximately radial on the contrary, so as to the first eccentric force and the second bias
Power further can preferably coordinate to balance the centrifugal force that eccentric part 211 and the operating of orbiter 23 are produced.
In some embodiments of the invention, it is provided with oil sump 1c, bent axle 21 to be formed in housing 1 and runs through its in the axial direction
Provided with the Oil Guide part 4 extending into oil sump 1c in oil supplying hole 21a, oil supplying hole 21a.For example, as shown in figure 1, oil sump 1c can be with
The bottom of housing 1 is located at, furthermore, oil sump 1c can be located in lower cover 13, oil supplying hole 21a is vertical along the axial direction of bent axle 21
Through the upper surface and lower surface of bent axle 21 so that oil sump 1c is communicated by oil supplying hole 21a with the oil storage portion of the first frame 5.Lead
Oily part 4 can be located at oil supplying hole 21a bottom, and the lower end of Oil Guide part 4 is extend into oil sump 1c, so that in scroll compression
During machine 100 is run, the lubricating oil in oil sump 1c can be entered in oil supplying hole 21a with right successively by Oil Guide part 4
Bearing, orbiter 23 and the fixed scroll 22 of the bottom of bent axle 21 are lubricated, and extend the use longevity of screw compressor 100
Life.
Specifically, the second frame 6 is also provided with housing 1, the second frame 6 is located between motor 3 and oil sump 1c, bent
The bottom of axle 21 is located in the second frame 6 by bearing, to realize to the spacing of the bottom of bent axle 21.The company of being formed with bent axle 21
Axis holds the aperture with oil supplying hole 21a so that the lubricating oil in oil supplying hole 21a can flow to bearing by aperture, with to bearing
It is lubricated.During screw compressor 100 is run, the lubricating oil in oil sump 1c is in the presence of Oil Guide part 4 from oil
Pond 1c is flowed up along oil supplying hole 21a, and lubricating oil flows to first after being lubricated by aperture to the bearing of the bottom of bent axle 21
In the oil storage portion of frame 5, a portion lubricating oil flows out from spill port 5a, and passes through the gap between stator 31 and housing 1
It is back in oil sump 1c downwards, another part lubricating oil flows into the compression chamber limited between orbiter 23 and fixed scroll 22
It is interior to be lubricated to orbiter 23 and fixed scroll 22.
In a particular embodiment of the present invention, as depicted in figs. 1 and 2, the oil supplying hole 21a part provided with Oil Guide part 4
Aperture be more than oil supplying hole 21a remainder aperture, in order to which the lubricating oil in oil sump 1c is in the presence of Oil Guide part 4
Flow into oil supplying hole 21a, and flowed up along oil supplying hole 21a.
As shown in figure 1, back pressure cavity 5b is also formed with housing 1, and back pressure cavity 5b is communicated with compression chamber, the refrigerant of compression can
To be flow to by the back pressure hole 22a on fixed scroll 22 in back pressure cavity 5b, the pressure value in back pressure cavity 5b is set to be in air entry 1a
Pressure value and exhaust outlet 1b pressure value between.The bottom of orbiter 23 is acting upwardly on by the gas in back pressure cavity 5b
Portion, to balance uneven axial force and torque of the refrigerant to orbiter 23 in compression chamber.
Other of screw compressor 100 according to embodiments of the present invention are constituted and operated for ordinary skill people
All it is known for member, is not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example are described
Structure, material or feature are contained at least one embodiment of the present invention or example.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can in an appropriate manner be combined in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of screw compressor, it is characterised in that including：
Housing, the housing is provided with air entry and exhaust outlet；
Compression mechanical part, the compression mechanical part is located in the housing, the compression mechanical part include bent axle, fixed scroll,
Orbiter and balance element, the bent axle have the eccentric part coordinated with the orbiter, and the balance element is located at the song
On axle；
Motor, the motor is located in the housing and including stator and rotor, is enclosed on the bent axle to drive outside the rotor
Dynamic crankshaft is rotated, and the rotor includes Part I and Part II, and the Part II is provided with least one in the song
The axle of axle extends upward through the through hole of the rotor, during the screw compressor operation, the Part I and the Part II
Generation of poor quality the second eccentric power cooperation for producing of the first eccentric force and the balance element to balance the eccentric part and institute
State the centrifugal force of orbiter generation.
2. screw compressor according to claim 1, it is characterised in that on the cross section of the rotor, described second
The half of rotor overall circumference described in partial Zhou Changwei.
3. screw compressor according to claim 1, it is characterised in that the through hole is multiple.
4. screw compressor according to claim 3, it is characterised in that circumference of multiple through holes along the rotor is
It is even to be spaced apart.
5. screw compressor according to claim 3, it is characterised in that the shape of multiple through holes is identical.
6. screw compressor according to claim 1, it is characterised in that the cross section of the through hole be formed as polygon,
Circular or ellipse.
7. screw compressor according to claim 1, it is characterised in that the center of gravity of the balance element and the Part II
Center of gravity be located at the bent axle homonymy.
8. screw compressor according to claim 7, it is characterised in that in the first plane, the center of gravity of the balance element
Orthographic projection and the bent axle central axis orthographic projection between line be the first line, the center of gravity of the Part II
Line between the orthographic projection of the central axis of orthographic projection and the bent axle is the second line, first line and described second
Angle between line is α, and α is met：α≤10 °, first plane is the cross section of the rotor.
9. screw compressor according to claim 1, it is characterised in that be provided with the housing in oil sump, the bent axle
Formed and run through in the axial direction in its oil supplying hole, the oil supplying hole provided with the Oil Guide part extending into the oil sump.
10. screw compressor according to claim 9, it is characterised in that the oil supplying hole is provided with the Oil Guide part
Part aperture be more than the oil supplying hole remainder aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444975.7A CN107061269A (en) | 2017-06-12 | 2017-06-12 | Screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444975.7A CN107061269A (en) | 2017-06-12 | 2017-06-12 | Screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107061269A true CN107061269A (en) | 2017-08-18 |
Family
ID=59594354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710444975.7A Pending CN107061269A (en) | 2017-06-12 | 2017-06-12 | Screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061269A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142232A1 (en) * | 2022-01-27 | 2023-08-03 | 广东美的环境科技有限公司 | Scroll compressor and air conditioning system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037995A (en) * | 2006-03-14 | 2007-09-19 | Lg电子株式会社 | Scroll compressor |
| KR20110123575A (en) * | 2010-05-07 | 2011-11-15 | 학교법인 두원학원 | Structure of driving part in electromotive scroll compressor |
| KR20110129775A (en) * | 2010-05-26 | 2011-12-02 | 학교법인 두원학원 | Eccentric structure of driving part in electromotive scroll compressor |
| CN202197155U (en) * | 2011-09-07 | 2012-04-18 | 安徽美芝压缩机有限公司 | Speed regulation permanent magnet synchronous motor rotor for refrigeration frequency conversion compressor |
| CN203641001U (en) * | 2012-11-30 | 2014-06-11 | 三菱电机株式会社 | Scroll compressor |
| CN104508304A (en) * | 2012-07-30 | 2015-04-08 | 大金工业株式会社 | Rotary machine and compressor |
| CN105587662A (en) * | 2016-03-01 | 2016-05-18 | 广东美的暖通设备有限公司 | Scroll compressor |
| CN105697372A (en) * | 2016-03-07 | 2016-06-22 | 广东美的暖通设备有限公司 | Scroll compressor and refrigeration system |
| CN206972516U (en) * | 2017-06-12 | 2018-02-06 | 美的集团股份有限公司 | Screw compressor |
-
2017
- 2017-06-12 CN CN201710444975.7A patent/CN107061269A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037995A (en) * | 2006-03-14 | 2007-09-19 | Lg电子株式会社 | Scroll compressor |
| KR20110123575A (en) * | 2010-05-07 | 2011-11-15 | 학교법인 두원학원 | Structure of driving part in electromotive scroll compressor |
| KR20110129775A (en) * | 2010-05-26 | 2011-12-02 | 학교법인 두원학원 | Eccentric structure of driving part in electromotive scroll compressor |
| CN202197155U (en) * | 2011-09-07 | 2012-04-18 | 安徽美芝压缩机有限公司 | Speed regulation permanent magnet synchronous motor rotor for refrigeration frequency conversion compressor |
| CN104508304A (en) * | 2012-07-30 | 2015-04-08 | 大金工业株式会社 | Rotary machine and compressor |
| CN203641001U (en) * | 2012-11-30 | 2014-06-11 | 三菱电机株式会社 | Scroll compressor |
| CN105587662A (en) * | 2016-03-01 | 2016-05-18 | 广东美的暖通设备有限公司 | Scroll compressor |
| CN105697372A (en) * | 2016-03-07 | 2016-06-22 | 广东美的暖通设备有限公司 | Scroll compressor and refrigeration system |
| CN206972516U (en) * | 2017-06-12 | 2018-02-06 | 美的集团股份有限公司 | Screw compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142232A1 (en) * | 2022-01-27 | 2023-08-03 | 广东美的环境科技有限公司 | Scroll compressor and air conditioning system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8801397B2 (en) | Compressor | |
| US6264446B1 (en) | Horizontal scroll compressor | |
| CN101946095B (en) | Centrifugal compressor assembly and method | |
| CN1754044A (en) | Scroll compressor with bifurcated flow pattern | |
| TW200426308A (en) | Scroll compressor | |
| CN103867450B (en) | Rotary compressor | |
| CN104373349B (en) | Rotary compressor and its pump group part | |
| CN101319672B (en) | Cyclone compressor | |
| CN110242592A (en) | Centrifugal compressor and its manufacturing method | |
| CN206972516U (en) | Screw compressor | |
| CN107061269A (en) | Screw compressor | |
| CN103306983B (en) | Compressor dumping-guiding plate and rotary compressor | |
| WO2019033894A1 (en) | Rotary mechanism | |
| CN105736372B (en) | Rotary compressor | |
| CN207122423U (en) | Compressor and there is its refrigerating plant | |
| CN103410736B (en) | Low backpressure rotary compressor and there is its chiller plant | |
| CN207437367U (en) | Rotary machine | |
| KR101964226B1 (en) | A compressing system | |
| CN106605068A (en) | Compressor | |
| CN203404088U (en) | Low-backpressure rotary compressor and refrigeration equipment provided with same | |
| CN104696227B (en) | Rotary compressor | |
| CN105090031B (en) | Rotary compressor and there is its refrigerating circulatory device | |
| CN113279965B (en) | Horizontal compressor | |
| CN205977686U (en) | A compressor that is used for rotor subassembly of compressor and has it | |
| CN207297362U (en) | Rotary compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190107 Address after: 528300 Shun Feng Shan Industrial Development Zone, Shunde District, Foshan, Guangdong. Applicant after: GUANGDONG MEIZHI COMPRESSOR Co.,Ltd. Address before: 528311, 26-28, B District, Mei headquarters building, 6 Mei Road, Beijiao Town, Shunde District, Foshan, Guangdong. Applicant before: MIDEA GROUP Co.,Ltd. Applicant before: GD MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190305 Address after: 528300 No. 21, Gangqian Road, Beijiao Town, Shunde District, Foshan City, Guangdong Province Applicant after: GUANGDONG MIDEA ENVIRONMENT TECHNOLOGY Co.,Ltd. Address before: 528300 Shun Feng Shan Industrial Development Zone, Shunde District, Foshan, Guangdong. Applicant before: GUANGDONG MEIZHI COMPRESSOR Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170818 |