CN106286570A - A kind of bent axle and rotor-type compressor - Google Patents
A kind of bent axle and rotor-type compressor Download PDFInfo
- Publication number
- CN106286570A CN106286570A CN201610860132.0A CN201610860132A CN106286570A CN 106286570 A CN106286570 A CN 106286570A CN 201610860132 A CN201610860132 A CN 201610860132A CN 106286570 A CN106286570 A CN 106286570A
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- China
- Prior art keywords
- rib
- connecting portion
- cross
- section
- eccentric part
- 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.)
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Classifications
-
- 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
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
-
- 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
- F04C2240/00—Components
- F04C2240/60—Shafts
-
- 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
- F16C2360/00—Engines or pumps
- F16C2360/42—Pumps with cylinders or pistons
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a kind of bent axle and rotor-type compressor, belong to Compressor Technology field.The bent axle of the present invention includes main shaft, countershaft, connecting shaft, upper eccentric part and lower eccentric part, upper eccentric part is placed between main shaft with countershaft with lower eccentric part and is connected by connecting shaft, and connecting shaft includes the lower rib that upper rib, upper connecting portion and lower end that upper end is all connected all be connected with lower eccentric part, lower connecting portion with upper eccentric part；Upper rib is crisscross arranged up and down with lower rib, the sidewall of upper connecting portion is connected with the sidewall of upper rib, the lower end of upper connecting portion is connected with the upper end of lower rib, and the sidewall of lower connecting portion is connected with the sidewall of lower rib, and the upper end of lower connecting portion is connected with the lower end of upper rib.The connecting shaft of the bent axle that the present invention provides has the upper rib and lower rib being crisscross arranged, and crankshaft strength is high, improves the reliability of compressor.
Description
Technical field
The present invention relates to Compressor Technology field, particularly relate to a kind of bent axle and include the rotor-type compressor of this bent axle.
Background technology
The double-exhaust structure design of single compressed level has been used for twin-tub twin-stage, multi-cylinder twin-stage, twin-tub single-stage and multi-cylinder single-stage
Deng in rotor-type compressor.Generally, the pump partition plate of the compressor with double-exhaust structure is made up of upper spacer and lower clapboard, and
Upper spacer or lower clapboard are designed with exhaust structure, thus the spacing between adjacent two eccentric parts of bent axle is relatively big, at high pressure ratio, height
Under the bad working environments such as pressure reduction, shaft part (connecting shaft) stress deformation that bent axle is positioned between two eccentric parts is serious, causes the compressor can
Poor by property.
For the problems referred to above, prior art provides a kind of bent axle with reinforcement structure, as it is shown in figure 1, in connecting shaft
Upper and lower be respectively arranged with rib 31 ' and lower rib 33 '.Although the bent axle of this structure is to a certain extent
The problem improving deformation, but owing to upper rib 31 ' and lower rib 33 ' are only located at the upper and lower of connecting shaft, stress
Being strengthened not yet in the middle part of serious connecting shaft, bent axle is the most yielding.
Summary of the invention
Because the problems referred to above, it is an object of the present invention to propose the song that a kind of intensity is high, axle system bearing capacity is high
Axle；
Further object is that and propose the compressor that a kind of reliability is high.
For reaching this purpose, on the one hand, the present invention adopts the following technical scheme that
A kind of bent axle, including main shaft, countershaft, connecting shaft, upper eccentric part and lower eccentric part, described upper eccentric part with described under
Eccentric part is placed between described main shaft with described countershaft and is connected by described connecting shaft, and described connecting shaft includes that upper end is all and institute
State lower rib, lower connection that upper rib, upper connecting portion and the lower end of eccentric part connection are all connected with described lower eccentric part
Portion；Described upper rib is crisscross arranged up and down with described lower rib, the sidewall of described upper connecting portion and described upper rib
Sidewall connects, and the lower end of described upper connecting portion is connected with the upper end of described lower rib, and the sidewall of described lower connecting portion is with described
The sidewall of lower rib connects, and the upper end of described lower connecting portion is connected with the lower end of described upper rib.
Further, described upper rib and described lower rib are respectively L1 and L2 in axial length, described upper partially
Distance between heart portion and described lower eccentric part is L, 3mm≤(L1+L2)-L.
Further, described upper rib, described upper connecting portion, described lower rib and the cross section of described lower connecting portion
The most arcuately.
Further, the center of circle that the cross section of described upper connecting portion is corresponding with the cross section of described lower connecting portion is respectively positioned on institute
Stating on the axis of main shaft, the center of circle that the cross section of described upper rib is corresponding is positioned on the axis of described upper eccentric part, described under
The center of circle that the cross section of rib is corresponding is positioned on the axis of described lower eccentric part.
Further, the eccentric throw of described upper eccentric part is e1, and the eccentric throw of described lower eccentric part is e2, described upper reinforcement
The radius that the cross section in portion is corresponding with the cross section of described upper connecting portion is respectively R1, R2, the cross section of described lower rib with
The radius that the cross section of described lower connecting portion is corresponding is respectively R3, R4；R1 ＞ (R4-e2), R3 ＞ (R2-e1).
Further, the central angle that the cross section of described upper rib is corresponding is corresponding with the cross section of described lower rib
Central angle sum is more than or equal to 360 degree.
Further, the string that the chord length that the cross section of described upper connecting portion is corresponding is corresponding with the cross section of described upper rib
Long equal；Chord length that the cross section of described lower connecting portion the is corresponding chord length corresponding with the cross section of described lower rib is equal.
Further, described connecting shaft is structure as a whole.
On the other hand, the present invention adopts the following technical scheme that
A kind of rotor-type compressor, including any of the above-described described bent axle.
Further, described rotor-type compressor be twin-tub two-pole rotor formula compressor, multi-cylinder two-pole rotor formula compressor,
Twin-tub single stage rotor formula compressor or multi-cylinder single stage rotor formula compressor.
Beneficial effects of the present invention is as follows:
The bent axle that the present invention provides, the connecting shaft between upper eccentric part and lower eccentric part has the upper rib being crisscross arranged
With lower rib, the middle part that each several part of connecting shaft especially stress is serious is all strengthened, and drastically increases bent axle
Intensity, reduce axle system adaptability to changes, improve loading capacity of oil film, and then improve the reliability of compressor.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing bent axle；
Fig. 2 is the perspective view of the bent axle that the preferred embodiment of the present invention one provides；
Fig. 3 is the partial cutaway view of the bent axle that the preferred embodiment of the present invention one provides；
Fig. 4 is the sectional view of F-F line along Fig. 3；
Fig. 5 is the sectional view of E-E line along Fig. 3；
Fig. 6 is the sectional view of the rotor-type compressor that the preferred embodiment of the present invention two provides.
In figure:
1, main shaft；2, countershaft；3, connecting shaft；4, upper eccentric part；5, lower eccentric part；6, housing；7, motor；8, lower cylinder；
9, upper cylinder；10, lower roller；11, upper roller；12, lower clapboard assembly；13, upper spacer assembly；14, lower flange assembly；15, on
Flange assembly；16, exhaustor；31, upper rib；32, upper connecting portion；33, lower rib；34, lower connecting portion；31 ', upper reinforcement
Portion；32 ', lower rib.
Detailed description of the invention
Further illustrate technical scheme below in conjunction with the accompanying drawings and by detailed description of the invention.
Preferred embodiment one:
This preferred embodiment provides a kind of bent axle, and it is double that it mainly but does not limit to the twin-tub being applied to have double-exhaust structure
Pole rotor type compressor, multi-cylinder two-pole rotor formula compressor, twin-tub single stage rotor formula compressor, multi-cylinder single stage rotor formula compressor
Deng.
Refer to the structural representation of the bent axle that Fig. 2 to Fig. 5, Fig. 2 provide for the present embodiment, it include main shaft 1, countershaft 2,
Connecting shaft 3, upper eccentric part 4 and lower eccentric part 5, upper eccentric part 4 and lower eccentric part 5 are placed between main shaft 1 and countershaft 2 and by even
Spindle 3 connects.Wherein, connecting shaft 3 includes upper rib 31, upper connecting portion 32 and the lower end that upper end is all connected with upper eccentric part 4
The lower rib 33 that is all connected with lower eccentric part 5, lower connecting portion 34；Upper rib 31 is crisscross arranged with lower rib about 33
(bottom of sidewall i.e. going up rib 31 is connected with the top of lower rib 33 sidewall), the sidewall of upper connecting portion 32 and upper reinforcement
The sidewall in portion 31 connects, and the lower end of upper connecting portion 32 is connected with the upper end of lower rib 33, the sidewall of lower connecting portion 34 with under add
The sidewall in strong portion 31 connects, the upper end of lower connecting portion 34 is connected with the lower end of upper rib 33.Upper rib 31, upper connecting portion
32, the cross section of lower rib 33 and lower connecting portion 34 is both preferably arcuately, i.e. the bottom of the flat sidewall of upper rib 31
Being connected with the top of lower rib 33 flat sidewall, the flat sidewall of upper connecting portion 32 connects with the flat sidewall of upper rib 31
Connecing, the flat sidewall of lower connecting portion 34 is connected with the flat sidewall of lower rib 31.
The bent axle that the present embodiment provides, the connecting shaft 3 between upper eccentric part 4 and lower eccentric part 5 has be crisscross arranged upper
Rib 31 and lower rib 33, the middle part that each several part of connecting shaft 3 especially stress is serious is all strengthened, and greatly carries
The high intensity of bent axle, reduce axle system adaptability to changes, improve loading capacity of oil film, and then improve the reliable of compressor
Property.
Upper rib 31 and the staggered scope of lower rib 33 specifically need to be arranged according to the carrying situation etc. of bent axle, can
To improve the intensity of bent axle, to reduce axle system adaptability to changes.But preferably, upper rib 31 and lower rib 33 are axial
Length is respectively L1 and L2, and the distance between upper eccentric part 4 and lower eccentric part 5 is L, 3mm≤(L1+L2)-L, i.e. upper rib
31 and the staggered distance of lower rib 33 more than 3mm.
Further, the center of circle that the cross section of upper connecting portion 32 is corresponding with the cross section of lower connecting portion 34 is respectively positioned on main shaft 1
Axis on, the center of circle that the cross section of upper rib 31 is corresponding is positioned on the axis of eccentric part 4, the cross section of lower rib 33
The corresponding center of circle is positioned on the axis of lower eccentric part 5.Upper rib 31, upper connecting portion 32, lower rib 33, lower connecting portion 34
The radius that cross section is corresponding specifically need to be arranged according to the carrying situation etc. of bent axle, it is preferable that the eccentric throw of upper eccentric part 4 is
E1, the eccentric throw of lower eccentric part 5 is e2, the radius difference that the cross section of upper rib 31 is corresponding with the cross section of upper connecting portion 32
For R1, R2, the radius that the cross section of lower rib 33 is corresponding with the cross section of lower connecting portion 34 is respectively R3, R4；R1 ＞ (R4-
E2), R3 ＞ (R2-e1).
On the basis of said structure, the cross section pair of chord length corresponding to the cross section of upper connecting portion 32 and upper rib 31
The chord length answered is equal；Chord length that the cross section of lower connecting portion 34 the is corresponding chord length corresponding with the cross section of lower rib 33 is equal,
So that the flat sidewall of the flat sidewall of upper connecting portion 32 and upper rib 31 is docked completely, the flat sidewall of lower connecting portion 34
Dock completely with the flat sidewall of lower rib 33.
On the basis of said structure, the cross section of central angle corresponding to the cross section of upper rib 31 and lower rib 33
Corresponding central angle sum is more than or equal to 360 degree.Wherein it is possible to be the arc that the cross section of upper rib 31 is corresponding be major arc, under
The arc that the cross section of rib 33 is corresponding is minor arc or semicircle；Can also be the arc that the cross section of upper rib 31 is corresponding be bad
Arc, the arc that the cross section of lower rib 33 is corresponding is major arc；Can also is that the arc that the cross section of rib 31 is corresponding is semicircle,
The arc that the cross section of lower rib 33 is corresponding is major arc or semicircle, it can be ensured that the stiffening effect in the middle part of connecting shaft.
Preferred embodiment two:
A kind of rotor-type compressor, including the bent axle described in preferred embodiment one.This rotor-type compressor can be twin-tub
Two-pole rotor formula compressor, multi-cylinder two-pole rotor formula compressor, twin-tub single stage rotor formula compressor or multi-cylinder single stage rotor formula pressure
Contracting machine.Above-mentioned rotor-type compressor preferably has the rotor-type compressor of double-exhaust structure.
Fig. 6 show a kind of twin-tub two-pole rotor formula compressor with double-exhaust structure that the present embodiment provides, its bag
The motor 7 that include housing 6, is arranged in housing 6, lower cylinder 8, upper cylinder 9, lower roller 10, upper roller 11, lower clapboard assembly 12,
Upper spacer assembly 13, lower flange assembly 14, upper flange component 15, exhaustor 16 and the bent axle described in preferred embodiment one, the therapeutic method to keep the adverse QI flowing downwards
Cylinder 8 and upper cylinder 9 are coordinated with lower eccentric part 5, the upper eccentric part 4 of bent axle by lower roller 10, upper roller 11 respectively, lower clapboard group
Part 12 and upper spacer assembly 13 are placed between lower cylinder 8 and upper cylinder 9 by order from bottom to up, lower clapboard assembly 12 or on every
Exhaust structure it is provided with, in flange assembly 15 is fixed on housing 6 and be connected with upper cylinder 9, lower flange assembly 14 on board component 13
Being connected with lower cylinder 8, exhaustor 16 is connected in housing 6 upper end.
The rotor-type compressor that the present embodiment provides is owing to being provided with above-mentioned bent axle, and it is applicable to high pressure ratio, High Pressure Difference
Etc. operating mode, reliability is high.
The know-why of the present invention is described above in association with specific embodiment.These describe and are intended merely to explain the present invention's
Principle, and limiting the scope of the invention can not be construed to by any way.Based on explanation herein, the technology of this area
Personnel need not pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes fall within
Within protection scope of the present invention.
Claims (10)
1. a bent axle, including main shaft (1), countershaft (2), connecting shaft (3), upper eccentric part (4) and lower eccentric part (5), described on
Eccentric part (4) and described lower eccentric part (5) are placed between described main shaft (1) and described countershaft (2) and by described connecting shaft (3)
Connect, it is characterised in that
Described connecting shaft (3) include upper rib (31) that upper end is all connected with described upper eccentric part (4), upper connecting portion (32) and
Lower rib (33) that lower end is all connected with described lower eccentric part (5), lower connecting portion (34)；Described upper rib (31) is with described
Lower rib (33) is crisscross arranged up and down, and the sidewall of described upper connecting portion (32) is connected with the sidewall of described upper rib (31),
The lower end of described upper connecting portion (32) is connected with the upper end of described lower rib (33), the sidewall of described lower connecting portion (34) and institute
The sidewall stating lower rib (31) connects, and the upper end of described lower connecting portion (34) is connected with the lower end of described upper rib (33).
A kind of bent axle the most according to claim 1, it is characterised in that described upper rib (31) and described lower rib
(33) being respectively L1 and L2 in axial length, the distance between described upper eccentric part (4) and described lower eccentric part (5) is L,
3mm≤(L1+L2)-L。
A kind of bent axle the most according to claim 1, it is characterised in that described upper rib (31), described upper connecting portion
(32), the cross section of described lower rib (33) and described lower connecting portion (34) is the most arcuately.
A kind of bent axle the most according to claim 3, it is characterised in that the cross section of described upper connecting portion (32) with described under
The center of circle that the cross section of connecting portion (34) is corresponding is respectively positioned on the axis of described main shaft (1), described upper rib (31) transversal
The center of circle corresponding to face is positioned on the axis of described upper eccentric part (4), the position, the center of circle that the cross section of described lower rib (33) is corresponding
On the axis of described lower eccentric part (5).
A kind of bent axle the most according to claim 4, it is characterised in that the eccentric throw of described upper eccentric part (4) is e1, described
The eccentric throw of lower eccentric part (5) is e2, the cross section of described upper rib (31) and the cross section pair of described upper connecting portion (32)
The radius answered is respectively R1, R2, and the cross section of described lower rib (33) is corresponding with the cross section of described lower connecting portion (34)
Radius is respectively R3, R4；R1 ＞ (R4-e2), R3 ＞ (R2-e1).
6. according to the arbitrary described a kind of bent axle of claim 3 to 5, it is characterised in that the cross section of described upper rib (31)
The central angle sum that corresponding central angle is corresponding with the cross section of described lower rib (33) is more than or equal to 360 degree.
7. according to the arbitrary described a kind of bent axle of claim 3 to 5, it is characterised in that the cross section of described upper connecting portion (32)
The chord length that corresponding chord length is corresponding with the cross section of described upper rib (31) is equal；The cross section pair of described lower connecting portion (34)
The chord length the answered chord length corresponding with the cross section of described lower rib (33) is equal.
8. according to the arbitrary described a kind of bent axle of claim 1 to 5, it is characterised in that described connecting shaft (3) is structure as a whole.
9. a rotor-type compressor, it is characterised in that include the bent axle as according to any one of claim 1 to 8.
Rotor-type compressor the most according to claim 9, it is characterised in that: described rotor-type compressor is that twin-tub is bipolar
Rotor-type compressor, multi-cylinder two-pole rotor formula compressor, twin-tub single stage rotor formula compressor or multi-cylinder single stage rotor formula compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610860132.0A CN106286570A (en) | 2016-09-27 | 2016-09-27 | A kind of bent axle and rotor-type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610860132.0A CN106286570A (en) | 2016-09-27 | 2016-09-27 | A kind of bent axle and rotor-type compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106286570A true CN106286570A (en) | 2017-01-04 |
Family
ID=57716392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610860132.0A Pending CN106286570A (en) | 2016-09-27 | 2016-09-27 | A kind of bent axle and rotor-type compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106286570A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5134900A (en) * | 1988-11-03 | 1992-08-04 | Emitec Gesellschaft Fur Emissionstechnologie Mbh | Crankshaft with hollow pins |
| DE19509155A1 (en) * | 1995-03-14 | 1996-09-19 | Bayerische Motoren Werke Ag | Hypocycloidal crank gear for reciprocating piston machines, in particular for internal combustion engines with opposing rows of cylinders |
| CN2447567Y (en) * | 2000-10-24 | 2001-09-12 | 上海日立电器有限公司 | Crankshaft with high-rigid connecting shaft for double-cylinder rotary compressor |
| CN2813935Y (en) * | 2005-08-26 | 2006-09-06 | 西安庆安制冷设备股份有限公司 | Crankshaft of high-rigid double-cylinder rotor type compressor |
| CN206206376U (en) * | 2016-09-27 | 2017-05-31 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of bent axle and rotor-type compressor |
-
2016
- 2016-09-27 CN CN201610860132.0A patent/CN106286570A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5134900A (en) * | 1988-11-03 | 1992-08-04 | Emitec Gesellschaft Fur Emissionstechnologie Mbh | Crankshaft with hollow pins |
| DE19509155A1 (en) * | 1995-03-14 | 1996-09-19 | Bayerische Motoren Werke Ag | Hypocycloidal crank gear for reciprocating piston machines, in particular for internal combustion engines with opposing rows of cylinders |
| CN1178574A (en) * | 1995-03-14 | 1998-04-08 | 宝马公司 | Hypocycloidal crank mechanism for piston engines, engines especially for opposed-cylinder IC engines |
| CN2447567Y (en) * | 2000-10-24 | 2001-09-12 | 上海日立电器有限公司 | Crankshaft with high-rigid connecting shaft for double-cylinder rotary compressor |
| CN2813935Y (en) * | 2005-08-26 | 2006-09-06 | 西安庆安制冷设备股份有限公司 | Crankshaft of high-rigid double-cylinder rotor type compressor |
| CN206206376U (en) * | 2016-09-27 | 2017-05-31 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of bent axle and rotor-type compressor |
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Application publication date: 20170104 |
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