CN107269488B - The fixing means of both ends tilted-plate compressor and inclined plate and rotary shaft - Google Patents
The fixing means of both ends tilted-plate compressor and inclined plate and rotary shaft Download PDFInfo
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- CN107269488B CN107269488B CN201710108183.2A CN201710108183A CN107269488B CN 107269488 B CN107269488 B CN 107269488B CN 201710108183 A CN201710108183 A CN 201710108183A CN 107269488 B CN107269488 B CN 107269488B
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- inclined plate
- rotary shaft
- plate
- axial direction
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/10—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/0804—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B27/0808—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B25/00—Multi-stage pumps
- F04B25/04—Multi-stage pumps having cylinders coaxial with, or parallel or inclined to, main shaft axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/0804—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B27/0821—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block component parts, details, e.g. valves, sealings, lubrication
- F04B27/0839—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block component parts, details, e.g. valves, sealings, lubrication valve means, e.g. valve plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/06—Mobile combinations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
Landscapes
- 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
Inclined plate includes: base portion, and one end in the axial direction is equipped with the bearing plane for being connected to thrust bearing；And rake, both ends piston is assigned and is moved back and forth.By in rake be located at radial outside and when end corresponding with the top dead center position of both ends piston of side is located at is set as at the top of inclined plate, specific direction is set as, the imaginary line upwardly extended in the side vertical relative to bearing plane is set as reference axis the end for the side for being fixed on the rotary shaft of inclined plate to close direction at the top of inclined plate, rotary shaft by relative to reference axial direction specific direction AR it is inclined in a manner of be fixed on inclined plate.
Description
Technical field
The present invention relates to the both ends tilted-plate compressor for having rotary valve and such both ends ramp type can be set to
The inclined plate of compressor and the fixing means of rotary shaft.
Background technique
As disclosed in Japanese Unexamined Patent Publication 2003-222075 bulletin, it is known to which a kind of both ends for having rotary valve are oblique
Board-like compressor.Rotary valve is for importing refrigerant into cylinder holes.
About the structure of rotary valve, the rotary shaft itself for being occasionally used for rotating inclined plate constitutes rotary valve.In this case,
Refrigerant in cylinder holes (discharge chambe) in discharge stroke can be easy from the suction passage being connected to the cylinder holes along rotary valve
Periphery towards cylinder holes external leakage.The leakage of refrigerant can become the reason of declining the volumetric efficiency of compressor.
Compressor disclosed in Japanese Unexamined Patent Publication 2003-222075 bulletin has been applied flexibly in the cylinder holes in discharge stroke
The compressing force (compression reaction force) of generation applies pressing force to rotary valve, thus ensures rotary valve relative to suction passage
Leakproofness.However, in the case where the load of compressor is low, in discharge stroke (past dynamic (Japanese: past dynamic) of piston)
Cylinder holes in generate compressing force also become smaller.The pressing force that can apply to rotary valve also becomes smaller, and rotary valve is logical relative to sucking
The leakproofness on road is easy to die down in the case where comparing high load capacity.
Summary of the invention
Even if the purpose of the present invention is to provide one kind in the case where the load of compressor is low, also it is able to suppress in row
Out the refrigerant in the cylinder holes (discharge chambe) of stroke from the suction passage being connected to the cylinder holes along the periphery of rotary valve towards cylinder
The both ends tilted-plate compressor of hole external leakage and the inclined plate and rotary shaft that such both ends tilted-plate compressor can be set to
Fixing means.
Had based on both ends tilted-plate compressor of the invention: cylinder body includes the axis hole extended in the axial direction, setting
Multiple cylinder holes around above-mentioned axis hole extend radially and make each cylinder holes in above-mentioned axis hole and multiple above-mentioned cylinder holes
Multiple suction passage of connection and inclined plate room；Inclined plate is configured in above-mentioned inclined plate room；Both ends piston is configured at above-mentioned
Side and other side zoning discharge chambe in cylinder holes, in the above-mentioned axial direction of the inside of above-mentioned cylinder holes；Rotary shaft is configured at
In above-mentioned axis hole, integrally rotated with above-mentioned inclined plate；And a pair of of thrust bearing, it is arranged to clip in above-mentioned axial direction above-mentioned
Inclined plate, in above-mentioned rotary shaft, equipped with the rotary valve with the access for importing refrigerant to above-mentioned discharge chambe, by above-mentioned
Rotary valve rotation, the outer peripheral surface that above-mentioned rotary valve is alternately repeated seals above-mentioned suction passage and above-mentioned access connects
Above-mentioned suction passage is passed through, above-mentioned inclined plate includes: base portion, has the insertion hole for the insert of above-mentioned rotary shaft, with above-mentioned a pair
A pair of of bearing plane that thrust bearing abuts against is separately positioned on one end and another side in above-mentioned axial direction；And inclination
Portion extends from above-mentioned base portion towards above-mentioned radial outside, relative to above-mentioned axially inclined, assigns to above-mentioned both ends piston past
It is multiple mobile, by above-mentioned rake be located at above-mentioned radial outside and with the above-mentioned both ends piston that is located at above-mentioned side
The corresponding end of top dead center position is set as that the end of the above-mentioned side of the above-mentioned rotary shaft of above-mentioned inclined plate at the top of inclined plate, will be fixed on
Portion is set as specific direction to the close direction in above-mentioned inclined plate top, will prolong on the direction vertical relative to above-mentioned a pair of of bearing plane
When the imaginary line stretched is set as reference axis, above-mentioned rotary shaft by relative to said reference axially above-mentioned specific direction it is inclined in a manner of
It is fixed on above-mentioned inclined plate.
Above-mentioned and other purposes, feature, situation and advantage of the invention from it is associated with attached drawing and understand with this
It invents related detailed description below and is apparent from.
Detailed description of the invention
Fig. 1 is the cross-sectional view for showing the both ends tilted-plate compressor 100 in embodiment.
Fig. 2 is the regarding sectional view along the II-II line in Fig. 1.
Fig. 3 is the cross-sectional view for enlargedly showing a part in Fig. 2.
Fig. 4 is the regarding sectional view along the IV-IV line in Fig. 1.
Fig. 5 is the cross-sectional view for enlargedly showing a part in Fig. 4.
Fig. 6 is the cross-sectional view for showing the rotary shaft 21 and inclined plate 23 that configure among both ends tilted-plate compressor 100.
Fig. 7 be show the rotary shaft 21 and inclined plate 23 for being used in both ends tilted-plate compressor 100, from both ends ramp type
The cross-sectional view of the state removed among compressor 100.
Fig. 8 is for illustrating for the rotary shaft 21 and inclined plate 23 that are used in both ends tilted-plate compressor 100 preferably
Tilt angle theta cross-sectional view.
Fig. 9 is for illustrating to rotate for the rotary shaft 21 and inclined plate 23 that are used in both ends tilted-plate compressor 100
The top view of the variation of the inclined direction of axis 21.
Figure 10 is the cross-sectional view for showing the general fixing means of rotary shaft 21 and inclined plate 23.
Figure 11 is the cross-sectional view for showing the fixing means 1 of rotary shaft 21 and inclined plate 23.
Figure 12 is the cross-sectional view for showing the fixing means 2 of rotary shaft 21 and inclined plate 23.
Figure 13 is the cross-sectional view for showing the fixing means 3 of rotary shaft 21 and inclined plate 23.
Figure 14 is the cross-sectional view for showing the fixing means 4 of rotary shaft 21 and inclined plate 23.
Specific embodiment
Hereinafter, being illustrated referring to attached drawing to embodiment.Same attached drawing mark is marked to the same part and corresponding part
Note, sometimes without repeat description.
[both ends tilted-plate compressor 100]
Fig. 1 is the cross-sectional view for showing the both ends tilted-plate compressor 100 in embodiment.Fig. 2 is along the II- in Fig. 1
The regarding sectional view of II line.Fig. 3 is the cross-sectional view for enlargedly showing a part in Fig. 2.Fig. 4 is along the IV-IV in Fig. 1
The regarding sectional view of line.Fig. 5 is the cross-sectional view for enlargedly showing a part in Fig. 4.
Referring especially to Fig. 1, both ends tilted-plate compressor 100 has: cylinder body 11,12, front housing 13, rear shell 14, rotary shaft 21,
Shaft sealing part 22, inclined plate 23, thrust bearing 25,26 and both ends piston 29.
(cylinder body 11, thrust bearing 25)
Axis hole 112 is provided through in cylinder body 11.Axis hole 112 and the axis hole 122 for being set to cylinder body 12 be formed together along
Axial 110 axis holes extended.The part opposite with aftermentioned rotary valve 35 in the inner peripheral surface of axis hole 112, is formed with
It seals circumferential surface 113 (Fig. 1, Fig. 3).Seal internal diameter of the internal diameter of circumferential surface 113 than sealing the part other than circumferential surface 113 in axis hole 112
It is small.Rotary shaft 21 (aftermentioned) is supported on cylinder body 11 via sealing circumferential surface 113.
It around axis hole 112 among cylinder body 11, is positioned away from from axis hole 112, with the side arranged in the circumferential
Formula is equipped with multiple cylinder holes 27 (Fig. 2).Multiple suction passage 33 are equipped with around axis hole 112 among cylinder body 11.Suction passage
33 extend radially, and are connected to axis hole 112 with cylinder holes 27.The entrance 331 of suction passage 33 is in sealing 113 upper opening of circumferential surface
(Fig. 2, Fig. 3).
Cricoid ridge 111 (Fig. 1) is formed in the end face positioned at 12 side of cylinder body of cylinder body 11.Thrust bearing 25 is set to
In ridge 111.Thrust bearing 25 and aftermentioned thrust bearing 26 are arranged to clip inclined plate 23 (base portion 231) on axial 110.
(cylinder body 12, thrust bearing 26)
Axis hole 122 is provided through in cylinder body 12.Axis hole 122 and the axis hole 112 for being set to cylinder body 11 be formed together along
Axial 110 axis holes extended.The part opposite with aftermentioned rotary valve 36 in the inner peripheral surface of axis hole 122, is formed with
It seals circumferential surface 123 (Fig. 1, Fig. 5).The internal diameter of circumferential surface 123 is sealed than in the part other than the sealing circumferential surface 123 in axis hole 122
Diameter is small.Rotary shaft 21 (aftermentioned) is supported on cylinder body 12 via sealing circumferential surface 123.
It around axis hole 122 among cylinder body 12, is positioned away from from axis hole 122, with the side arranged in the circumferential
Formula is equipped with multiple cylinder holes 28 (Fig. 4).Multiple suction passage 34 are equipped with around axis hole 122 among cylinder body 12.Suction passage
34 extend radially, and are connected to axis hole 122 with cylinder holes 28.The entrance 341 of suction passage 34 is in sealing 123 upper opening of circumferential surface
(Fig. 4, Fig. 5).
Cricoid ridge 121 (Fig. 1) is formed in the end face positioned at 11 side of cylinder body of cylinder body 12.Thrust bearing 26 is set to
In ridge 121.Thrust bearing 25,26 is arranged to clip inclined plate 23 (base portion 231) on axial 110.By by thrust bearing 25,
26 clip inclined plate 23 on axial 110, are thus fixed on the rotary shaft 21 of inclined plate 23 and are carried out positioning in this direction.
(both ends piston 29)
As shown in Figure 1, cylinder body 11,12 is engaged each other on axial 110, inclined plate room thus is formed in their inside
24.Front and back (13 side of front housing being set as front side, 14 side of rear shell is set as rear side) pairs of cylinder holes 27,28 constitutes a cylinder holes.Two
Head piston 29 is configured among the cylinder holes, the side and the other side on axial the 110 of the inside of cylinder holes, zoning compression respectively
Room 271,281.
(front housing 13)
Discharge room 131 is formed in front housing 13.Front housing 13 is engaged in cylinder body 11, is equipped with valve plate 15, valve between them
It forms plate 16 and retainer forms plate 17.It is formed with outlet 151 in valve plate 15, plate 16 is formed in valve and is formed with dump valve
161, plate 17, which is formed, in retainer is formed with retainer 171.
(rear shell 14)
Discharge room 141 and suction chamber 142 are formed in rear shell 14.Rear shell 14 is engaged in cylinder body 12, sets between them
There are valve plate 18, valve to form plate 19 and retainer formation plate 20.It is formed with outlet 181 in valve plate 18, forms 19 shape of plate in valve
At there is dump valve 191, plate 20 is formed in retainer and is formed with retainer 201.
(rotary shaft 21, shaft sealing part 22)
As shown in Figure 1, rotary shaft 21 includes end 213, it is located at the side on axial 110；And the other end 214,
Positioned at the other side in this direction.Rotary shaft 21 is configured in axis hole 112,122, by cylinder body 11,12 formation axis hole 112,
122 inner peripheral surface part (specifically, sealing circumferential surface 113,123) bearing is that can rotate.Shaft sealing part 22 is arranged to wrap
Being located in spinning shaft 21 leans on the week of the part of position of side (213 side of end) than the part supported by sealing circumferential surface 113
It encloses.The slip film with wear resistance is equipped in sealing circumferential surface 113,123 and/or the outer peripheral surface of rotary shaft 21.
(speech is changed in the state that rotary shaft 21 and inclined plate 23 are not assembled as both ends tilted-plate compressor 100
It, in the state of having removed rotary shaft 21 and inclined plate 23 among both ends tilted-plate compressor 100), rotary shaft 21 with
It is fixed on inclined plate 23 towards the inclined mode of specific direction (details are described later referring to Fig. 7).In rotary shaft 21 and inclined plate
In the state that 23 are assembled as both ends tilted-plate compressor 100, rotary shaft 21 is by sealing circumferential surface 113,123 to tilt
State support, the direction that the central axis 21G of rotary shaft 21 extends being slightly tilted relative to axial the 110 of axis hole 112,122.
As shown in Figure 1, rotary valve 35,36 and the setting of rotary shaft 21 are integrated (rotary shaft 21 composition itself in rotary shaft 21
Rotary valve 35,36).Specifically, rotary shaft 21 has hollow portion 212, access 31 and access 32.
Along with the rotation of rotary shaft 21, the outlet 311 of access 31 is intermittently connected to the entrance of suction passage 33
331.That is, rotary valve 35 is rotated along with the rotation of rotary shaft 21, the outer peripheral surface of rotary valve 35 is thus alternately repeated
35S seals suction passage 33 and access 31 is connected to suction passage 33.
Along with the rotation of rotary shaft 21, the outlet 321 of access 32 is intermittently connected to the entrance of suction passage 34
341.That is, rotary valve 36 is rotated along with the rotation of rotary shaft 21, the outer peripheral surface of rotary valve 36 is thus alternately repeated
36S seals suction passage 34 and access 32 is connected to suction passage 34.
(inclined plate 23)
Inclined plate 23 includes base portion 231 and rake 235, is configured in inclined plate room 24.Inclined plate 23 is by aluminium and/or aluminium alloy system
At.Base portion 231 has the insertion hole 23H inserted for rotary shaft 21.Rotary shaft 21 inserts (such as indentation) in insertion hole 23H, and
It is fixed on inclined plate 23.
Thrust bearing 25 is set between cylinder body 11 and base portion 231.One end on axial the 110 of base portion 231, is equipped with
It is connected to the bearing plane 236 of thrust bearing 25.In the state that inclined plate 23 is assembled in inclined plate room 24 together with rotary shaft 21,
Bearing plane 236 is orthogonal relative to the axial direction 110 of axis hole 112,122.
Thrust bearing 26 is set between cylinder body 12 and base portion 231.Another side on axial the 110 of base portion 231, if
There is the bearing plane 237 for being connected to thrust bearing 26.In the present embodiment, another on axial the 110 of the base portion 231 of inclined plate 23
One end is formed with cricoid ridge 234.The diameter of ridge 234 is bigger than the diameter of ridge 121.Ridge 234 is connected to thrust axis
Hold 26.That is, constituting bearing plane 237 by the surface of ridge 234.It is assembled in inclined plate room 24 together in inclined plate 23 and rotary shaft 21
In the state of, bearing plane 237 is orthogonal relative to the axial direction 110 of axis hole 112,122.
Rake 235 has the shape of plate, and the outside from base portion 231 towards radial 23C (Fig. 1) obliquely extends.Incline
The center line 23L of inclined portion 235 is relative to axial 110 and radial direction 23C inclination.Rake 235 is via locking boots (English: shoe)
301,302 engaging in both ends piston 29.Inclined plate 23 can assign both ends piston 29 by integrally rotating with rotary shaft 21
It moves back and forth.
(suction stroke of cylinder holes 27)
Cylinder holes 27 formed suction stroke state when, in other words, in both ends piston 29 from the left side of Fig. 1 to the right
When mobile suction stroke (double action movement (Japanese: double action movement)), the access 31 that rotary shaft 21 is arranged outlet 311 with
It is connected in the entrance 331 for the suction passage 33 that cylinder body 11 is arranged.Refrigerant in the hollow portion 212 of rotary shaft 21 is via access
31 and suction passage 33 and be inhaled into the discharge chambe 271 of cylinder holes 27.
(stroke is discharged in the compression of cylinder holes 27)
When cylinder holes 27 forms the state of compression or discharge stroke, in other words, it is being in right side of the both ends piston 29 from Fig. 1
When the compression moved to the left or discharge stroke (toward movement (Japanese: toward movement)), in the access that rotary shaft 21 is arranged
31 outlet 311 and the connection of the entrance 331 for the suction passage 33 being arranged in cylinder body 11 are cut off.Refrigeration in discharge chambe 271
Agent is from outlet 151, dump valve 161 by being discharged to discharge room 131.The refrigerant being discharged to discharge room 131 is to not shown
External refrigerant circuit outflow.It flows back to the refrigerant that external refrigerant circuit flows out to suction chamber 142.
(suction stroke of cylinder holes 28)
Cylinder holes 28 formed suction stroke state when, in other words, in both ends piston 29 from the right side of Fig. 1 to the left
When mobile suction stroke (double action movement (Japanese: double action movement)), the access 32 that rotary shaft 21 is arranged outlet 321 with
It is connected in the entrance 341 for the suction passage 34 that cylinder body 12 is arranged.Refrigerant in the hollow portion 212 of rotary shaft 21 is via access
32 and suction passage 34 and be inhaled into the discharge chambe 281 of cylinder holes 28.
(stroke is discharged in the compression of cylinder holes 28)
When cylinder holes 28 forms the state of compression or discharge stroke, in other words, it is being in left side of the both ends piston 29 from Fig. 1
When the compression moved to the right or discharge stroke (toward movement (Japanese: toward movement)), in the access that rotary shaft 21 is arranged
32 outlet 321 and the connection of the entrance 341 for the suction passage 34 being arranged in cylinder body 12 are cut off.Refrigeration in discharge chambe 281
Agent is from outlet 181, dump valve 191 by being discharged to discharge room 141.The refrigerant being discharged to discharge room 141 is to not shown
External refrigerant circuit outflow.It flows back to the refrigerant that external refrigerant circuit flows out to suction chamber 142.
(about compression reaction force)
It is set as cylinder holes 27 (27A) shown in FIG. 1 and is in the state compressed or stroke is discharged.In this case, shown in Fig. 4
Two cylinder holes 28 (28B) are also at compression or the state of stroke are discharged.The cylinder holes 27 of state in compression or discharge stroke
Both ends piston 29 (29A) in (27A) is compressing the refrigerant in cylinder holes 27 (27A) and is being discharged to discharge room 131
Compression reaction force is born when refrigerant.The compression reaction force via both ends piston 29 (29A), locking boots 301, inclined plate 23 to
Rotary shaft 21 is transmitted.
The compression reaction force transmitted via both ends piston 29 (29A) to inclined plate 23 is used as and is indicated in Fig. 1 with arrow F1
Power and act on inclined plate 23.The compression reaction transmitted via the both ends piston 29 (29B) in cylinder holes 28 (28B) to inclined plate 23
Power also acts on inclined plate 23 as same power F2 (being indicated in Fig. 1 with arrow F2).
During the part for being located at the center on axial 110 and on radial direction 23C in the rake 235 by inclined plate 23 is set as
When center portion CT, power F1, F2 will make to rotate centered on central part CT with the integrated rotary shaft 21 of inclined plate 23.Rotary shaft 21
It is supported to separate relative to the inner peripheral surface of axis hole 112,122, inner circumferential of the rotary shaft 21 relative to axis hole 112,122
The displacement in face is transmitted to rotary valve 35,36.
That is, via in compress or discharge stroke state cylinder holes 27 (27A, 28B) in both ends piston 29 (29A,
29B) and to the compression reaction force that rotary shaft 21 is transmitted, towards the cylinder holes 27 (27A) of the state in compression or discharge stroke
To the force of rotary valve 35 (referring to the arrow AR1 in Fig. 6).Equally, rotary valve 36 is also by compression reaction force towards cylinder holes 28
(28B) force (referring to the arrow AR2 in Fig. 6).
By the outer peripheral surface 35S towards the rotary valve 35 to exert a force in the cylinder holes 27 (27A) for compressing or being discharged stroke, it is crimped
Sealing circumferential surface near the entrance 331 for the suction passage 33 being connected to in the cylinder holes 27 (27A) for compressing or being discharged stroke
113.The refrigerant in discharge chambe 271 in cylinder holes 27 (27A) in compression or discharge stroke becomes difficult to from suction passage
The volumetric efficiency of 33 leakages, compressor improves.
By the outer peripheral surface 36S towards the rotary valve 36 to exert a force in the cylinder holes 28 (28B) for compressing or being discharged stroke, it is crimped
Sealing circumferential surface near the entrance 341 for the suction passage 34 being connected to in the cylinder holes 28 (28B) for compressing or being discharged stroke
123.The refrigerant in discharge chambe 281 in cylinder holes 28 (28A) in compression or discharge stroke becomes difficult to from suction passage
The volumetric efficiency of 34 leakages, compressor improves.
Fig. 6 is the cross-sectional view for showing the rotary shaft 21 and inclined plate 23 that configure among both ends tilted-plate compressor 100.Figure
Rotary shaft 21 shown in 6 and inclined plate 23 form the state assembled as both ends tilted-plate compressor 100.Fig. 7 is to show
Be used in both ends tilted-plate compressor 100 rotary shaft 21 and inclined plate 23, remove among both ends tilted-plate compressor 100
State cross-sectional view.As described above, rotary shaft 21 and inclined plate 23 not by as both ends tilted-plate compressor 100 and
(in other words, in the shape for having removed rotary shaft 21 and inclined plate 23 among both ends tilted-plate compressor 100 in the state of assembling
Under state), rotary shaft 21 by towards specific direction it is inclined in a manner of be fixed on inclined plate 23.It is not illustrated clearly in Fig. 6, but as above
It is described, in the state that rotary shaft 21 and inclined plate 23 are assembled as both ends tilted-plate compressor 100, rotary shaft 21 by
Seal state support of the circumferential surface 113,123 to have tilted, the direction that the central axis 21G of rotary shaft 21 extends relative to axis hole 112,
Axial the 110 of 122 are slightly tilted towards specific direction.
Referring to Fig.1, the end of the side of the rake 235 of inclined plate 23 is set as at the top of inclined plate by Fig. 6 and Fig. 7 herein
238.At the top of inclined plate 238 be in rake 235 positioned at radial direction 23C outside and make the side (rotary shaft 21 positioned at axial direction 110
213 side of end) discharge chambe 271 (Fig. 1) form discharge state, corresponding with the top dead center position of piston 29A part.
Moreover, the end 213 of the side for the rotary shaft 21 for being fixed on inclined plate 23 is set as certain party to 238 close directions at the top of inclined plate
To AR.
Referring to Fig. 7, by what is upwardly extended in the vertical side of the bearing plane 236 being arranged relative to the base portion 231 in inclined plate 23
Imaginary line is set as reference axis 236G.Axis hole 112,122 and inclined plate room are not configured in rotary shaft 21 and inclined plate 23
In the state of in 24 (in the state of having removed rotary shaft 21 and inclined plate 23 among both ends tilted-plate compressor 100),
Rotary shaft 21 by relative to reference axis 236G to specific direction AR it is inclined in a manner of be fixed on inclined plate 23.
That is, in previous compressor, in rotary shaft 21 and inclined plate 23 by the group as both ends tilted-plate compressor 100
In the state of having filled, the central axis 21G of rotary shaft 21 is parallel relative to reference axis 236G.On the other hand, in the present embodiment,
(in Fig. 6, shown in Fig. 7 in the state that rotary shaft 21 and inclined plate 23 are assembled as both ends tilted-plate compressor 100
Under state), the central axis 21G of rotary shaft 21 is not parallel relative to reference axis 236G, rotary shaft 21 relative to reference axis 236G to
Specific direction AR inclination.In the state that rotary shaft 21 and inclined plate 23 are assembled as both ends tilted-plate compressor 100
(in the state of shown in Fig. 6), state support of the rotary shaft 21 by sealing circumferential surface 113,123 to have tilted, in rotary shaft 21
The direction that mandrel 21G extends is slightly tilted relative to axial the 110 of axis hole 112,122.In addition, for rotary shaft shown in Fig. 7
21 inclined degree is turgidly illustrated for convenience of explanation.Both ends tilted-plate compressor 100 in embodiment is such as
The above is constituted.
(effect and effect)
As stated in the beginning, compressor disclosed in Japanese Unexamined Patent Publication 2003-222075 bulletin has been applied flexibly in discharge row
The compressing force (compression reaction force) generated in the cylinder holes of journey, to rotary valve apply pressing force (arrow AR1 shown in Fig. 6,
AR2), leakproofness of the rotary valve relative to suction passage is thus ensured.
In the case where the load of compressor is low, the compressing force generated in the cylinder holes in discharge stroke also becomes smaller.It is logical
Pressing force obtained from overcompression reaction force also becomes smaller, the feelings of rotary valve high load capacity compared with the leakproofness of suction passage
It is easy to die down under condition.
The rotary shaft 21 of present embodiment is in rotary shaft 21 and inclined plate 23 not by as both ends tilted-plate compressor 100
And in the state of assembling, it is tilted relative to reference axis 236G to specific direction AR.Specific direction AR, which refers to, is fixed on inclined plate 23
The end 213 of the side of rotary shaft 21 is to 238 close directions at the top of inclined plate.
In the state that rotary shaft 21 and inclined plate 23 are assembled as both ends tilted-plate compressor 100, rotary shaft
21 are supported by sealing circumferential surface 113,123.In this state, the direction that the central axis 21G of rotary shaft 21 extends is also relative to axis hole
112, axial the 110 of 122 are slightly tilted (Fig. 1, Fig. 6).
As a result, rotary shaft 21 (can join the force of rotary valve 35 towards the cylinder holes 27 (27A) of the state in discharge stroke
According to the arrow AR1 in Fig. 6), and exert a force towards the cylinder holes 28 (28B) of the state in compression or discharge stroke to rotary valve 36
(referring to the arrow AR2 in Fig. 6).Even if the use environment of the low-load in the effect for being difficult to the effect by compression reaction force
Under, the refrigerant that can also effectively inhibit in the cylinder holes (discharge chambe) in discharge stroke is logical from the sucking for being connected to the cylinder holes
Curb rotary valve periphery towards cylinder holes external leakage.
(tilt angle theta)
Referring to Fig. 8, about the access 31 for being set to rotary shaft 21, by the center comprising the access 31 in axial direction 110
The position of 31G, relative to axial 110 vertical planes be set as datum plane 31K.By the position in the rake 235 of inclined plate 23
It is set as central part CT in the part at the center in axial direction 110 and on radial direction 23C, it will be between central part CT and datum plane 31K
Axial direction on distance be set as L.
The radius of turn of outer peripheral surface 35S in datum plane 31K, rotary valve 35 is set as R1, it will be in datum plane 31K
, the radius of the inner peripheral surface 112S of axis hole 112 (i.e. sealing circumferential surface 113) be set as R2.
In datum plane 31K, by inner peripheral surface 112S (the i.e. sealing circumferential surface of the outer peripheral surface 35S of rotary valve 35 and axis hole 112
113) gap between is set as CL.It is assembled in rotary shaft 21 and inclined plate 23 as both ends tilted-plate compressor 100
Under state, the value (that is, value of R2-R1) of clearance C L can be set as such as 5 μm or more and 50 μm or less.
In the state that rotary shaft 21 and inclined plate 23 are not assembled as both ends tilted-plate compressor 100, preferably
The tilt angle theta of rotary shaft 21, which is set such that, becomes zero with the comparable value of clearance C L.
That is, radius of turn R1 of the connection to the outer peripheral surface 35S of rotary valve 35 is carried out defined part P1 and central part CT
Straight line be set as T1, straight line T1 is set as α relative to axial 110 angle.In this case, α=tan- 1(R1/L) pass
It is tied to form vertical.
Will connection to the radius R2 of the inner peripheral surface 112S of axis hole 112 (i.e. sealing circumferential surface 113) carry out as defined in part P2 with
The straight line of central part CT is set as T2, and straight line T2 is set as β relative to axial 110 angle.In this case, β=tan- 1
(R2/L) relationship is set up.
It, will in the state that rotary shaft 21 and inclined plate 23 are not configured in axis hole 112,122 and inclined plate room 24
Rotary shaft 21 is set as θ to the inclined angle of specific direction AR relative to reference axis 236G.Preferably, meet 0 < θ≤(β-α)
Relationship, i.e. 0 < θ≤(tan- 1(R2/L)-tan- 1(R1/L)) relationship.It is further preferred that 5 μm of satisfaction≤(R2-R1)≤
50 μm of relationship.
Fig. 9 is to show rotary shaft 21 and inclined plate 23 from the axial 110 parallel directions relative to axis hole 112,122
When appearance top view.For the inclined degree of rotary shaft 21 shown in Fig. 9, turgidly carried out also for explanation is facilitated
Diagram.As described above, the side for the rotary shaft 21 that will be fixed on inclined plate 23 end 213 at the top of inclined plate 238 close sides
To be set as specific direction AR, by what is upwardly extended in the vertical side of the bearing plane 236 being arranged relative to the base portion 231 in inclined plate 23
When imaginary line is set as reference axis 236G (not shown), rotary shaft 21 is with inclined to specific direction AR relative to reference axis 236G
Mode is fixed on inclined plate 23.
The rotary shaft 21 from the axial 110 parallel directions relative to axis hole 112,122 and inclined plate 23 the case where
Under, when 238 straight line is set as Y1 (Fig. 9) at the top of by the position and inclined plate that link axial 110 (axle center) of axis hole 112,122,
In the above-described embodiment, the mode on straight line Y1, rotary shaft are located at the center 213a of the end 213 of rotary shaft 21
21 tilt relative to reference axis 236G to specific direction AR.It is tilted relative to reference axis 236G to specific direction AR in rotary shaft 21
It is such in the case where, also include situation as described below.
That is, in rotary shaft 21 and the feelings of inclined plate 23 from the axial 110 parallel directions relative to axis hole 112,122
Under condition, will be orthogonal relative to above-mentioned straight line Y1 and when being set as X1 by the straight line in axial 110 (axle center), rotary shaft 21 can also
To be located at the position leaned on than straight line X1 close to 238 side at the top of inclined plate with the center 213a of the end 213 of rotary shaft 21
Mode relative to reference axis 236G tilt.Such situation is also contained in rotary shaft 21 relative to reference axis 236G to certain party
To the inclined such situation of AR.For example, the center of the end 213 of rotary shaft 21 shown in double dot dash line in Fig. 9
213b meets such situation.
In other words, in rotary shaft 21 and inclined plate 23 from the axial 110 parallel directions relative to axis hole 112,122
In the case where, (in Fig. 9 paper, it is divided into across straight line X1 when inclined plate 23 is divided into two regions by straight line X1
Upper and lower region in inclined plate 23), it is also possible to rotary shaft 21 and is tilted relative to reference axis 236G, so that the end of rotary shaft 21
The center 213a or center 213b in portion 213 are located adjacent to the region of 238 side at the top of inclined plate compared with straight line X1
It is interior.As shown in the double dot dash line in Fig. 9, though the center 213b in the end of rotary shaft 21 213 be not at it is above-mentioned
It, also can be oblique to approaching relative to reference axis 236G (not shown) by the end 213 of rotary shaft 21 in the case where on straight line Y1
238 direction (that is, specific direction AR) inclination at the top of plate, to obtain effect similar to the above and effect.
[fixing means]
Referring to Fig.1 0, as the general method for rotary shaft 21 to be fixed on to inclined plate 23, prepare machine table 300,
Inclined plate 23 is loaded on the 300S of its surface.Central axis 23J of the surface 300S of machine table 300 relative to the insertion hole 23H of inclined plate 23
Vertically, rotary shaft 21 is along the central axis 23J relative to insertion hole 23H parallel direction (along vertical relative to surface 300S
Direction) and be pressed among insertion hole 23H (AR23).In the method, it is difficult to make rotary shaft 21 relative to reference axis 236G
(Fig. 7) is tilted to specific direction AR.
(fixing means 1)
Referring to Fig.1 1, in order to tilt rotary shaft 21 to specific direction AR relative to reference axis 236G (Fig. 7), such as can examine
Consider the surface inclined surface 300S for making machine table 300.In this case, the surface of machine table 300 is placed in inclined plate 23
In the state that 300S is upper, the central axis 23J of the insertion hole 23H of reference axis 236G and/or inclined plate 23 and situation shown in Fig. 10 are not
Together.The direction that rotary shaft 21 extends along the central axis 23J of the insertion hole 23H with reference axis 236G and/or in the setting of inclined plate 23
Different directions and be pressed among insertion hole 23H.In this way, rotary shaft 21 can be made relative to reference axis 236G (figure
7) it is tilted to specific direction AR.
(fixing means 2)
Referring to Fig.1 2, it, can also be pre- in order to tilt rotary shaft 21 to specific direction AR relative to reference axis 236G (Fig. 7)
Insertion hole 23H is first disposed relative to reference axis 236G inclination.In this case, rotary shaft 21 is along relative to insertion hole
The central axis 23J of 23H parallel direction (directions different from the direction that reference axis 236G extends) and be pressed into insertion hole 23H it
In.In this way, rotary shaft 21 can also tilted relative to reference axis 236G (Fig. 7) to specific direction AR.
(fixing means 3)
Referring to Fig.1 3, it, can also be in order to tilt rotary shaft 21 to specific direction AR relative to reference axis 236G (Fig. 7)
Be, in order to make reference axis 236G tilt, by constitute inclined plate 23 base portion 231 component axial direction on a pair of of end face 400,
401 are cut, to form a pair of of bearing plane 236,237.
(fixing means 4)
Referring to Fig.1 4, it, can also be pre- in order to tilt rotary shaft 21 to specific direction AR relative to reference axis 236G (Fig. 7)
First frangible portion 236J is formed in inclined plate 23.Frangible portion 236J is located adjacent to from the position of the insertion hole 23H in base portion 231
238 side, frangible portion 237J are located adjacent to another party from the position of the insertion hole 23H in base portion 231 at the top of inclined plate
Inclined plate at the top of 239 side.When making rotary shaft 21 be pressed into insertion hole 23H, by the way that there are frangible portions 236J, 237J, and
Rotary shaft 21 can be made to tilt relative to reference axis 236G (Fig. 7) to specific direction AR.
Embodiments of the present invention are illustrated, it is to be understood that embodiment of disclosure is in all respects all
It is illustration rather than restrictive content.The scope of the present invention is indicated by claims, it is intended that including with claims
Being had altered in impartial meaning and range.
Claims (6)
1. a kind of both ends tilted-plate compressor, has:
Cylinder body includes the axis hole extended in the axial direction, multiple cylinder holes for being set to around the axis hole, prolongs radially
It stretches and the multiple suction passage for being connected to the axis hole with each cylinder holes in multiple cylinder holes and inclined plate room；
Inclined plate is configured in the inclined plate room；
Both ends piston is configured in the cylinder holes, the side and the other side in the axial direction of the inside of the cylinder holes
Zoning discharge chambe；
Rotary shaft is configured in the axis hole, is integrally rotated with the inclined plate；And
A pair of of thrust bearing is arranged to clip the inclined plate in the axial direction,
In the rotary shaft, equipped with the rotary valve with the access for importing refrigerant to the discharge chambe, by described
Rotary valve rotation, the outer peripheral surface that the rotary valve is alternately repeated seals the suction passage and the access connects
The suction passage is passed through,
The inclined plate includes:
Base portion has the insertion hole for rotary shaft insert, a pair of of the bearing plane abutted against with the pair of thrust bearing
The one end and another side being separately positioned in the axial direction；And
Rake extends from the base portion towards the radial outside, living to the both ends relative to described axially inclined
Plug, which assigns, to be moved back and forth,
It will stop positioned at the radial outside in the rake and with the upper of the both ends piston for being located at the side
The corresponding end in point position is set as at the top of inclined plate,
The end for the side for being fixed on the rotary shaft of the inclined plate is set as to the close direction in the inclined plate top
Specific direction,
When the imaginary line upwardly extended in the side vertical relative to the pair of bearing plane is set as reference axis,
The rotary shaft by relative to specific direction described in the reference axial direction it is inclined in a manner of be fixed on the inclined plate.
2. both ends tilted-plate compressor according to claim 1,
By being located in the axial direction in the rake and the part at the center radially is set as central part,
By the position at the center in the axial direction comprising the access, relative to the axially vertical plane be set as base
Directrix plane,
By the central part in the axial direction between the datum plane at a distance from be set as L,
The radius of turn of the outer peripheral surface of rotary valve in the datum plane, described is set as R1,
The radius of the inner peripheral surface of axis hole in the datum plane, described is set as R2,
It will be in the state that the rotary shaft and the inclined plate are not configured in the axis hole and the inclined plate room, institute
When stating rotary shaft and being set as θ relative to the inclined angle of specific direction described in the reference axial direction,
Meet 0 < θ≤(tan- 1(R2/L)-tan- 1(R1/L)) relationship.
3. both ends tilted-plate compressor according to claim 2,
5 μm of satisfaction≤(R2-R1)≤50 μm of relationship.
4. the fixing means of a kind of inclined plate and rotary shaft is set to both ends tilted-plate compressor of any of claims 1 or 2
The fixing means of inclined plate and rotary shaft,
Has following process: along the different direction in the direction extended from the reference axis, rotary shaft indentation is described slotting
Among through-hole.
5. the fixing means of a kind of inclined plate and rotary shaft is set to both ends tilted-plate compressor of any of claims 1 or 2
The fixing means of inclined plate and rotary shaft,
Has following process: along the different side in the direction extended from the central axis for the insertion hole being arranged in the inclined plate
To among the rotary shaft indentation insertion hole.
6. the fixing means of a kind of inclined plate and rotary shaft is set to both ends tilted-plate compressor of any of claims 1 or 2
The fixing means of inclined plate and rotary shaft,
Have following process: being carried out by a pair of of end face in the axial direction of the component to the base portion for constituting the inclined plate
Cutting, to form the pair of bearing plane.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016070400A JP6390655B2 (en) | 2016-03-31 | 2016-03-31 | Double-headed swash plate compressor, and fixing method between swash plate and rotating shaft |
| JP2016-070400 | 2016-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107269488A CN107269488A (en) | 2017-10-20 |
| CN107269488B true CN107269488B (en) | 2019-04-19 |
Family
ID=60005826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710108183.2A Expired - Fee Related CN107269488B (en) | 2016-03-31 | 2017-02-27 | The fixing means of both ends tilted-plate compressor and inclined plate and rotary shaft |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6390655B2 (en) |
| KR (1) | KR101878594B1 (en) |
| CN (1) | CN107269488B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63173861A (en) * | 1987-01-10 | 1988-07-18 | Sanden Corp | Rotary swash plate type compressor having main shaft supported in cantilever form |
| JPH0533761A (en) * | 1991-07-31 | 1993-02-09 | Toyota Autom Loom Works Ltd | Swash plate supporting construction for swash plate type compressor |
| CN1432733A (en) * | 2001-11-21 | 2003-07-30 | 株式会社丰田自动织机 | Refrigerant sucker mechanism for piston-type compressor and the piston-type compressor |
| CN101074660A (en) * | 2006-03-31 | 2007-11-21 | 株式会社丰田自动织机 | Swash plate type compressor |
| EP2728184A2 (en) * | 2012-11-05 | 2014-05-07 | Kabushiki Kaisha Toyota Jidoshokki | Swash plate type variable displacement compressor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1012197B (en) * | 1988-02-11 | 1991-03-27 | 三电有限公司 | Refrigerant compressor |
| JP2946696B2 (en) * | 1990-09-03 | 1999-09-06 | 株式会社豊田自動織機製作所 | Swash plate compressor |
| JP2006009789A (en) * | 2004-05-25 | 2006-01-12 | Toyota Industries Corp | Piston type compressor |
-
2016
- 2016-03-31 JP JP2016070400A patent/JP6390655B2/en not_active Expired - Fee Related
-
2017
- 2017-02-21 KR KR1020170022752A patent/KR101878594B1/en active IP Right Grant
- 2017-02-27 CN CN201710108183.2A patent/CN107269488B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63173861A (en) * | 1987-01-10 | 1988-07-18 | Sanden Corp | Rotary swash plate type compressor having main shaft supported in cantilever form |
| JPH0533761A (en) * | 1991-07-31 | 1993-02-09 | Toyota Autom Loom Works Ltd | Swash plate supporting construction for swash plate type compressor |
| CN1432733A (en) * | 2001-11-21 | 2003-07-30 | 株式会社丰田自动织机 | Refrigerant sucker mechanism for piston-type compressor and the piston-type compressor |
| CN101074660A (en) * | 2006-03-31 | 2007-11-21 | 株式会社丰田自动织机 | Swash plate type compressor |
| EP2728184A2 (en) * | 2012-11-05 | 2014-05-07 | Kabushiki Kaisha Toyota Jidoshokki | Swash plate type variable displacement compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017180348A (en) | 2017-10-05 |
| KR20170113051A (en) | 2017-10-12 |
| JP6390655B2 (en) | 2018-09-19 |
| KR101878594B1 (en) | 2018-07-13 |
| CN107269488A (en) | 2017-10-20 |
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Granted publication date: 20190419 Termination date: 20210227 |