CN108934174A - Screw fluid machine - Google Patents
Screw fluid machine Download PDFInfo
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- CN108934174A CN108934174A CN201780003784.5A CN201780003784A CN108934174A CN 108934174 A CN108934174 A CN 108934174A CN 201780003784 A CN201780003784 A CN 201780003784A CN 108934174 A CN108934174 A CN 108934174A
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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
- 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
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
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- 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 present invention provides a kind of screw fluid machine, and oil is inhibited to mix with the mainstream of the gas sucked from suction inlet, so as to reduce air-breathing heating, and has high energy efficiency and high-performance.Middle part (4A) in shell (4) forms the positive through hole (4b) of male rotor axis (5b) perforation for male rotor (5),For the negative through hole (4c) of female rotor axis (6b) perforation of female rotor (6),Positioned at the downside of positive through hole (4b) and negative through hole (4c) and for the suction inlet (10) from the lateral male rotor 5 of motor (14) and female rotor (6) side sucking gas,And it is connected to positive through hole (4b) and negative through hole (4c) and has lubricated axis supporting mechanism (12a for returning to motor (14) side,The oil outlet passage portion (20) of oil 13a),Make to have lubricated axis supporting mechanism (12a,Oil 13a) flows into oil outlet passage portion (20) via positive oily access (17d) and the oily access (17e) of yin,And it is flowed into from the ora terminalis (10b) of the horizontal direction of suction inlet (10) to motor (14) side.
Description
Technical field
The present invention relates to use the natural refrigerants such as refrigerants, air, the carbon dioxide such as HFC class, HFO class and other pressures
The screw fluid machine of contracting gas.
Background technique
Screw fluid machine is widely spread as freezing air conditioner compressor, air compressor.To with air-conditioning in society
Machine, cooler, the main composition equipment for the heat-pump apparatus that refrigerator is representative and energy-efficient demand are extremely strong, and high energy efficiency,
High-performance is more and more important.
Existing screw fluid machine is configured to, to the axis branch for the armature spindle that can pivotally support male rotor and female rotor
Wall surface of the oil that support mechanism is lubricated along male rotor and female rotor side flows into suction inlet, and with the gas that is sucked from suction inlet
Oil storage tank is returned after the mainstream mixing of body.
Summary of the invention
Problems to be solved by the invention
But in the oil-returning structure of existing screw fluid machine, the mainstream of oil and the gas sucked from suction inlet is mixed
It closes, therefore, heat exchange is carried out between gas and oil, increase air-breathing heating, reduce compression efficiency.
Therefore, the purpose of the present invention is to provide a kind of screw fluid machines, are able to suppress oil and suck with from suction inlet
Gas mainstream mixing, thus reduce air-breathing heating, and have high energy efficiency and high-performance.
Solution for solving the problem
In order to solve the above problems, the screw fluid machine of a scheme of the invention has：Male rotor and female rotor, they
It is rotated in intermeshing；Axis supporting mechanism supports the drive shaft of above-mentioned male rotor and above-mentioned female rotor as that can rotate；
Driving mechanism drives above-mentioned male rotor and above-mentioned female rotor；Shell stores above-mentioned male rotor, above-mentioned female rotor, above-mentioned axis
Supporting mechanism and above-mentioned driving mechanism；And oil supply mechanism, to above-mentioned axis supporting mechanism for oil supply, above-mentioned shell has position
Middle part between above-mentioned driving mechanism and above-mentioned male rotor and above-mentioned female rotor is formed in above-mentioned middle part：Sun perforation
Hole is penetrated through for the drive shaft of above-mentioned male rotor；Negative through hole is penetrated through for the drive shaft of above-mentioned female rotor；Suction inlet is used
In sucking gas from above-mentioned drive mechanism side to above-mentioned male rotor and above-mentioned female rotor side；And oil outlet passage portion, and it is above-mentioned
Positive through hole and above-mentioned negative through hole are connected to and for returning the oil for having lubricated above-mentioned axis supporting mechanism to above-mentioned drive mechanism side
It returns, is configured to make to have lubricated the oil of above-mentioned axis supporting mechanism via above-mentioned oil outlet passage portion to avoid passing through along above-mentioned suction inlet
The mode of gas is returned from above-mentioned suction inlet to above-mentioned drive mechanism side.
Invention effect
In accordance with the invention it is possible to provide a kind of screw fluid machine, it is able to suppress oil and the gas from suction inlet sucking
Mainstream mixing, thus reduce air-breathing heating, and have high energy efficiency and high-performance.
Detailed description of the invention
Fig. 1 shows the horizontal cross of the screw fluid machine of first embodiment.
Fig. 2 indicates the cross-sectional view of the line A-A along Fig. 1 of the screw fluid machine of first embodiment.
Fig. 3 indicates the cross-sectional view of the line B-B along Fig. 1 of the screw fluid machine of first embodiment.
Fig. 4 indicates the cross-sectional view of the line C-C along Fig. 1 of the screw fluid machine of first embodiment.
Fig. 5 indicates the cross-sectional view of the line D-D along Fig. 4 of the screw fluid machine of first embodiment.
Fig. 6 indicates the cross-sectional view of the line C-C along Fig. 1 of the screw fluid machine of second embodiment.
Fig. 7 indicates the cross-sectional view of the line C-C along Fig. 1 of the screw fluid machine of third embodiment.
Specific embodiment
Hereinafter, being illustrated referring to attached drawing to the screw fluid machine 1 of first embodiment of the invention.
Referring to Fig.1~4, the overall structure of screw fluid machine 1 is illustrated.
Fig. 1 is the horizontal cross of the screw fluid machine 1 of present embodiment, and Fig. 2 shows the spiral shells of first embodiment
The cross-sectional view of the line A-A along Fig. 1 of bar fluid machinery 1.Fig. 3 shows the edge figure of the screw fluid machine 1 of first embodiment
The cross-sectional view of 1 line B-B.Fig. 4 shows the section view of the line C-C along Fig. 1 of the screw fluid machine 1 of first embodiment
Figure.
As shown in Figure 1, screw fluid machine 1 has compression unit 2, driving portion 3 and storage compression unit 2 and driving portion 3
Shell 4.As shown in Figure 1, 2, screw fluid machine 1 will suck in screw fluid machine 1 from the inhalation port 15 for being formed in shell 4
Gas by sucking operating room from the suction inlet 10 for the operating room for being formed with middle part 4A after motor 14.Then, it will suck
Gas compression, and spue via external from discharge port 16 to screw fluid machine 1 of the discharge opening of operating room 11.
Compression unit 2 has：By the male rotor 5 for being disposed in the rotation driving of motor 14 as driving mechanism of driving portion 3；Side
The female rotor 6 of side rotation is intermeshed with male rotor 5；Store the shell 4 of these male rotors 5 and female rotor 6；Axis supporting mechanism
12a,12b,13a,13b；Suck the oil supply mechanism 17 of side axle supporting mechanism；And the oil supply mechanism of discharge side axle supporting mechanism
(not shown).
Male rotor 5 and female rotor 6 have the male rotor axis 5b as rotary shaft, female rotor axis 6b respectively.Suck side axle branch
Support mechanism 12a is made of two roller bearings of the suction side of the male rotor axis 5b of support male rotor 5, discharge side axle supporting mechanism
12b is made of the roller bearing of the exhaust end of the male rotor axis 5b of support male rotor 5 and ball bearing.Suck side axle supporting mechanism
13a is made of the roller bearing of the suction side of the female rotor axis 6b of support female rotor 6, and discharge side axle supporting mechanism 13b is by supporting
The roller bearing and ball bearing of the exhaust end of the female rotor axis 6b of female rotor 6 are constituted.
Shell 4 has the middle part 4A between compression unit 2 and driving portion 3.Positive through hole is formed in middle part 4A
4b, negative through hole 4c, suction inlet 10 and oil outlet passage portion 20.In the male rotor axis 5b of positive through hole 4b perforation male rotor 5, and
Form the oily access 17d of sun.In the female rotor axis 6b of negative through hole 4c perforation female rotor 6, and form the oily access 17e of sun.Suction inlet
10 are located at the downside of sun through hole 4b and negative through hole 4c, and with ora terminalis 10a, 10b in horizontal direction.In addition, suction inlet
10 are widely open in 5 side of male rotor, on the contrary, being narrowly open to 6 side of female rotor.
Operating room by tooth socket 5a, 6a of male rotor 5 and female rotor 6, shell 4 inner cavity (in the diametrically opposite of each rotor
Wall surface) 7, the discharge end face 9 of the sucking end face 8 of shell 4 and shell 4 formed it is multiple.Here, 4 conduct of shell shown in FIG. 1
An example is shown as Construction integration, but be also possible to by between compression unit 2 and driving portion 3, compression unit 2 is by being arranged positive female rotor
Discharge side axle supporting mechanism shell segmentation made of segmentation construction etc..
Next, being described in detail to the structure of oil supply mechanism 17.
Sucking side axle supporting mechanism in shell 4, as sucking side axle supporting mechanism 12a and female rotor 6 to male rotor 5
The fuel supply path of 13a is formed with fuel feeding main path 17a and fuel feeding branch path 17b.Fuel feeding for example using will oil eliminator (not
Diagram) etc. the oil the isolated method that utilizes pressure difference supply, but be also possible to other methods.In 5 side of male rotor, from fuel feeding
Main path 17a pass through to the oil that sucking side axle supporting mechanism 12a is supplied prevent seal member 17c to motor 14 side leakage oil without
It can be flowed out to 14 side of motor, and after lubrication sucks side axle supporting mechanism 12a, flow out to the male rotor axis by male rotor 5
The positive through hole 4b of 5b perforation middle part 4A and the oily access 17d of sun formed.In 6 side of female rotor, supplied from fuel feeding branch path 17b
To the oil for sucking side axle supporting mechanism 13a after lubrication sucks and surveys axis supporting mechanism 13a, the yin turn by female rotor 6 is flowed out to
The negative through hole 4c of sub- axis 6b perforation middle part 4A and the oily access 17e of yin formed.
Using Fig. 4,5, to for guiding the oil outlet passage portion of oil from positive oily access 17d, yin oil access 17e to oil storage tank 21
20 are illustrated.
Fig. 5 shows the cross-sectional view of the line D-D along Fig. 4 of the screw fluid machine 1 of first embodiment.
As shown in Figure 4,5, the suction inlet 10 of operating room is formed in the sucking end face 8 of middle part 4A and will suck end face 8
The positive suction tank 18a of the male rotor side and negative suction tank 18b of female rotor side made of being excavated to rotor opposite side.In addition, in
Between portion 4A be formed with oil outlet passage portion 20.
Suction inlet 10 is formed in the downside of male rotor axis 5a and female rotor axis 6b.Positive suction tank 18a, yin suction tank 18b points
It is not formed in a manner of a part (exterior portion) along the periphery of male rotor axis 5a, female rotor axis 6b.Moreover, suction inlet 10 with
The boundary 19a of positive suction tank 18a is located at the right side of the lower part of the female rotor axis 6b in Fig. 4, and suction inlet 10 is with negative suction tank 18b's
Boundary 19b is located at the underface of female rotor axis 6b.In addition, boundary 19a, 19b are equivalent to the end in the horizontal direction of suction inlet 10
Edge 10a, 10b.
Oil outlet passage portion 20 is made of access 20a, discharge path 20b, plug 20c and discharge slot 20d.Access 20a,
Discharge path 20b and discharge slot 20d are horizontally extending, are formed, are inserted and carrying out time processing using drilling machine to shell 4
Head 20c closes the hole of the outer surface of shell 4.Under the lower part and the oily access 17e of yin of the oily access 17d of access 20a connection sun
Portion.The lower part of the oily access 17e of discharge path 20b connection yin and negative suction tank 18b.That is, discharge path 20b is connected to negative through hole 4c,
Extend to the side far from positive through hole 4b, and is open in negative suction tank 18b.Because heavy caliber is processed into oil outlet passage portion 20
Hole, so forming discharge slot 20d by the bottom surface for cutting negative suction tank 18b.Therefore, oil outlet passage portion 20 is processed into it is small
In the case where the hole of bore, discharge slot 20d is not formed.
Connection is flowed into sucking side axle supporting mechanism 12a the most of of oil for being lubricated and being flowed into positive oily access 17d
Road 20a, and flow in the horizontal direction, negative oily access 17e is flowed out to, and in yin oil access 17e and have lubricated sucking survey axis support
The oil confluence of mechanism 13a, the major part of the oil after confluence are flowed in the horizontal direction by discharge path 20b, and to negative suction tank
18b discharge.The oil for being expelled to negative suction tank 18b falls along negative suction tank 18b, from the ora terminalis 10b of suction inlet 10 to being located at motor
The oil storage tank 21 of 14 sides flows into.In this way, the oil for having lubricated sucking side axle supporting mechanism 12a, 13a is configured to, logical by oil extraction
Road portion 20 is after direction (in present embodiment, the horizontal direction) flowing intersected relative to vertical direction, from the end of suction inlet 10
Edge 10b flows to 14 side of motor.
The oil for having lubricated sucking side axle supporting mechanism 12a, 13a as a result, is returned along the wall for the ora terminalis 10b for forming suction inlet 10
Therefore 14 side of motor is able to suppress oil and mixes with the mainstream of the air-breathing body sucked from suction inlet 10, can reduce air-breathing heating.
Thereby, it is possible to realize with high energy efficiency and high performance screw fluid machine 1.
In addition, making the oil for having lubricated sucking side axle supporting mechanism 12a, 13a by oil outlet passage portion 20 along relative to lead
Direction (being horizontal direction in the present embodiment) flowing for direction intersection of hanging down, and fall along negative suction tank 18b, it also adds in yin
Suction tank 18b exists as oil film, and thus, it is possible to the temperature of oil is reduced by the heat exchange with shell 4.As a result, it is possible to drop
The heating of the low gas sucked from suction inlet 10.
In addition, the access 20a connection sun through hole 4b and negative through hole 4c in oil outlet passage portion 20, oil outlet passage portion 20
Discharge path 20b is configured to, and is connected to negative through hole 4c and extends to the side far from positive through hole 4b.Therefore, benefit can be passed through
Time processing is carried out to shell 4 with drilling machine and forms access 20a and discharge path 20b, therefore is able to easily form access 20a
And discharge path 20b.
In addition, the rotation driving male rotor 5 of motor 14, discharge path 20b is connected to negative through hole 4c, and to far from positive through hole
The side of 4b extends.It is open and narrows with the miniaturization of shell 4 in the side for being not provided with motor 14 of suction inlet 10, therefore is logical
It crosses and is configured to extend discharge path 20b from negative through hole 4c to the side far from positive through hole 4b, so as to lengthen from discharge
The distance for exporting to suction inlet 10 of road 20b reduces the temperature of oil.Therefore, it can reduce the gas sucked from suction inlet 10
Heating.
Next, being illustrated referring to Fig. 6 to the screw fluid machine 1 of second embodiment of the present invention.For with
The identical component of screw fluid machine 1 of one embodiment, marks identical reference number, omits the description, only to different portions
Divide and is illustrated.
Fig. 6 shows the cross-sectional view of the line C-C along Fig. 1 of the screw fluid machine 1 of second embodiment.
As shown in fig. 6, suction inlet 10 is located at the center of male rotor axis 5b and female rotor axis 6b, relative to orthogonal with paper
Face forms symmetrical shape.In middle part 4A, replace oil outlet passage portion 20, forms positive oil outlet passage portion 50 and negative oil outlet passage
Portion 51, and the access 20a of the lower part of the lower part and oily access 17e of yin of the not formed oily access 17d of connection sun.
Positive oil outlet passage portion 50 is made of positive discharge path 50a, plug 50b and discharge slot 50c.Positive discharge path 50a and row
Slot 50c is horizontally extending out, is formed by drilling machine to the processing of shell 4, and plug 50b is by the hole of the outer surface of shell 4
Closing.The lower part of the positive oily access 17d of discharge path 50a connection sun and positive suction tank 18a.That is, sun discharge path 50a and positive through hole 4b
Connection extends to the side far from negative through hole 4c, and is open in positive suction tank 18a.Because positive oil outlet passage portion 50 is processed
At bigbore hole, so forming discharge slot 50c by the bottom surface for cutting positive suction tank 18a.
Negative oil outlet passage portion 51 is made of negative discharge path 51a, plug 51b and discharge slot 51c.Negative discharge path 51a and row
Slot 51c is horizontally extending out, is formed by drilling machine to the processing of shell 4, and plug 51b is by the hole of the outer surface of shell 4
Closing.The lower part of the negative oily access 17e of discharge path 51a connection yin and negative suction tank 18b.That is, yin discharge path 51a and negative through hole 4c
Connection extends to the side far from positive through hole 4b, and is open in negative suction tank 18b.Because negative oil outlet passage portion 51 is processed
At bigbore hole, therefore the bottom surface by cutting negative suction tank 18b forms discharge slot 51c.
It has lubricated sucking side axle supporting mechanism 12a and the major part for flowing into the oil of positive oily access 17d passes through positive discharge path 50a
It flows in the horizontal direction, and suction tank 18a is discharged on the sunny side.The oil that Zhiyang suction tank 18a is discharged falls along positive suction tank 18a, from
The ora terminalis 10a of suction inlet 10 flows into the oil storage tank 21 for being located at 14 side of motor.In this way, having lubricated sucking side axle supporting mechanism 12a's
Oil is configured to, by positive oil outlet passage portion 50 along the direction (being horizontal direction in present embodiment) intersected relative to vertical direction
After flowing, 14 side of motor is flowed to from the ora terminalis 10a of suction inlet 10.
In addition, the major part for having lubricated the oil for sucking side axle supporting mechanism 13a and flowing into negative oily access 17e passes through negative discharge
Road 51a simultaneously flows in the horizontal direction, and is discharged to negative suction tank 18b.The oil of negative suction tank 18b is expelled to along negative suction tank 18b
It falls, the oil storage tank 21 for being located at 14 side of motor is flowed into from the ora terminalis 10b of suction inlet 10.In this way, having lubricated sucking hand shaft-support machine
The oil of structure 13a is configured to, and by negative oil outlet passage portion 51, (is in present embodiment along the direction intersected relative to vertical direction
Horizontal direction) flowing after, flow to 14 side of motor from the ora terminalis 10b of suction inlet 10.
Screw fluid machine 1 according to the present embodiment, positive oil outlet passage portion 50 and female rotor 6 with 5 side of male rotor
The negative oil outlet passage portion 51 of side, therefore oil can be made to pass through from two ora terminalis 10a, 10b of suction inlet 10, therefore be able to suppress sucking
The heat exchange of gas and oil.Thereby, it is possible to realize to reduce air-breathing heating and with high energy efficiency and high performance screw fluid machine
1。
Next, being illustrated referring to Fig. 7 to the screw fluid machine 1 of third embodiment of the present invention.For with
The identical component of screw fluid machine 1 of one embodiment, marks identical reference number, omits the description, and only illustrate difference
Part.
Fig. 7 shows the cross-sectional view of the line C-C along Fig. 1 of the screw fluid machine 1 of third embodiment.
As shown in fig. 7, in the part of the downside for the female rotor axis 6b for forming the face of negative suction tank 18b and being located at female rotor 6
It is formed with for oil to be expelled to and keeps out of the way slot 40 than the oil extraction of suction inlet 10 on the lower.
Make oily return on the lower from than suction inlet 10 as a result, therefore oil can be further suppressed and sucked with from suction inlet 10
Gas mainstream mixing, can further decrease air-breathing heating.Thereby, it is possible to realize to have more high energy efficiency and high performance spiral shell
Bar fluid machinery 1.
In addition, the present invention is not limited to the above embodiments.Those skilled in the art within the scope of the invention can be into
The various additions of row, change etc..
For example, driving male rotor 5 by motor 14, but female rotor 6 can also be driven.In this case, can also be by oil extraction
Passage portion 20 is not formed at the negative oil side access 17e, and is formed in positive oily access 17d.Alternatively, it is also possible in second embodiment
Positive suction tank 18a and negative suction tank 18b both sides form oil extraction and keep out of the way slot 40.
Symbol description
1-screw fluid machine, 4-shells, 4A-middle part, 4b-sun through hole, 4c-yin through hole, 5-sun turn
Son, 5b-male rotor axis, 6-female rotors, 6b-female rotor axis, 8-end faces, 10-suction inlets, 10a, 10b-ora terminalis, 12a,
13a-sucking side axle supporting mechanism, 14-motors, 17-oil supply mechanisms, the oily access of 17d-sun, the oily access of 17e-yin, 18a-
Positive suction tank, 18b-yin suction tank, 20-oil outlet passage portions, 20a-access, 20b-discharge path, 50-positive oil outlet passages
Portion, 50a-sun discharge path, 51-negative oil outlet passage portions, 51a-yin discharge path.
Claims (9)
1. a kind of screw fluid machine, which is characterized in that have：
Male rotor and female rotor, they are rotated in intermeshing；
Axis supporting mechanism supports the drive shaft of above-mentioned male rotor and above-mentioned female rotor as that can rotate；
Driving mechanism drives above-mentioned male rotor and above-mentioned female rotor；
Shell stores above-mentioned male rotor, above-mentioned female rotor, above-mentioned axis supporting mechanism and above-mentioned driving mechanism；And
Oil supply mechanism, to above-mentioned axis supporting mechanism for oil supply,
Above-mentioned shell has the middle part between above-mentioned driving mechanism and above-mentioned male rotor and above-mentioned female rotor,
It is formed in above-mentioned middle part：Positive through hole is penetrated through for the drive shaft of above-mentioned male rotor；Negative through hole, for above-mentioned
The drive shaft of female rotor penetrates through；Suction inlet is used to inhale from above-mentioned drive mechanism side to above-mentioned male rotor and above-mentioned female rotor side
Enter gas；And oil outlet passage portion, it is connected to and with above-mentioned positive through hole and above-mentioned negative through hole for making to have lubricated above-mentioned axis
The oil of supporting mechanism is returned to above-mentioned drive mechanism side,
It is configured to make to have lubricated the oil of above-mentioned axis supporting mechanism via above-mentioned oil outlet passage portion to avoid passing through along above-mentioned suction inlet
The mode of gas returned from above-mentioned suction inlet to above-mentioned drive mechanism side.
2. screw fluid machine according to claim 1, which is characterized in that
Above-mentioned suction inlet is located at the downside of above-mentioned positive through hole and above-mentioned negative through hole,
Make to have lubricated the oil of above-mentioned axis supporting mechanism and flow into above-mentioned oil outlet passage portion via positive oily access and the oily access of yin, and from upper
The ora terminalis for stating the horizontal direction of suction inlet is flowed into above-mentioned drive mechanism side, and wherein the oily access of the sun is by above-mentioned male rotor
Drive shaft penetrates through above-mentioned positive through hole and is formed, and yin oil access is to penetrate through above-mentioned yin by the drive shaft of above-mentioned female rotor to pass through
Through-hole and formed.
3. screw fluid machine according to claim 2, which is characterized in that
Above-mentioned oil outlet passage portion is configured to along the direction circulation oil intersected relative to vertical direction.
4. screw fluid machine according to claim 2 or 3, which is characterized in that
Above-mentioned oil outlet passage portion has：Access is connected to above-mentioned positive through hole and above-mentioned negative through hole；And discharge path,
Be connected to above-mentioned positive through hole and extends to the side far from above-mentioned negative through hole or be connected to above-mentioned yin through hole and to separate
The side of above-mentioned sun through hole extends.
5. screw fluid machine according to claim 4, which is characterized in that
Above-mentioned driving mechanism rotate drive above-mentioned male rotor in the case where, above-mentioned discharge path with it is above-mentioned yin through hole be connected to and to
Side far from above-mentioned positive through hole extends,
Above-mentioned driving mechanism rotate drive above-mentioned female rotor in the case where, above-mentioned discharge path with it is above-mentioned sun through hole be connected to and to
Side far from above-mentioned negative through hole extends.
6. screw fluid machine according to claim 4, which is characterized in that
It is formed in the above-mentioned male rotor of above-mentioned middle part and the end face of above-mentioned female rotor side：Positive suction tank, along above-mentioned sun
It a part of the drive shaft periphery of rotor and is connected to the end of a side of the horizontal direction of above-mentioned suction inlet；And yin sucking
Slot, along a part of the periphery of the drive shaft of above-mentioned female rotor and the end with another party of the horizontal direction of above-mentioned suction inlet
Portion's connection,
The above-mentioned discharge path in above-mentioned oil outlet passage portion is in above-mentioned positive suction tank or above-mentioned yin sucking channel opening.
7. screw fluid machine according to claim 2 or 3, which is characterized in that
Above-mentioned oil outlet passage portion has：Positive discharge path be connected to and to one far from above-mentioned yin through hole with above-mentioned positive through hole
Side extends；And negative discharge path, it is connected to above-mentioned negative through hole and extends to the side far from above-mentioned negative through hole.
8. screw fluid machine according to claim 7, which is characterized in that
It is formed in the above-mentioned male rotor of above-mentioned middle part and the end face of above-mentioned female rotor side：Positive suction tank, along above-mentioned sun
It a part of the periphery of the drive shaft of rotor and is connected to the end of a side of the horizontal direction of above-mentioned suction inlet；And yin sucking
Slot, along a part of the periphery of the drive shaft of above-mentioned female rotor and the end with another party of the horizontal direction of above-mentioned suction inlet
Portion's connection,
Above-mentioned sun discharge path is in above-mentioned sun sucking channel opening, and above-mentioned yin discharge path is in above-mentioned yin sucking channel opening.
9. the screw fluid machine according to claim 6 or 8, which is characterized in that
It is forming the face of above-mentioned positive suction tank and/or above-mentioned negative suction tank and is being located at above-mentioned male rotor and/or above-mentioned female rotor
The part of the downside of armature spindle is formed with oil extraction and keeps out of the way slot, which keeps out of the way slot and oil is discharged on the lower to than suction inlet.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-059472 | 2017-03-24 | ||
| JP2017059472A JP6448698B2 (en) | 2017-03-24 | 2017-03-24 | Screw fluid machinery |
| PCT/JP2017/041299 WO2018173362A1 (en) | 2017-03-24 | 2017-11-16 | Screw type fluid machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108934174A true CN108934174A (en) | 2018-12-04 |
| CN108934174B CN108934174B (en) | 2019-12-27 |
Family
ID=63584423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780003784.5A Active CN108934174B (en) | 2017-03-24 | 2017-11-16 | Screw fluid machine |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3604814A4 (en) |
| JP (1) | JP6448698B2 (en) |
| CN (1) | CN108934174B (en) |
| WO (1) | WO2018173362A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7366799B2 (en) * | 2020-02-25 | 2023-10-23 | 株式会社日立産機システム | Liquid feed type screw compressor |
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| JP2001323887A (en) * | 2000-05-12 | 2001-11-22 | Hitachi Ltd | Oil feed type screw compressor |
| CN101900120A (en) * | 2009-06-01 | 2010-12-01 | 株式会社日立工业设备技术 | Screw compressor |
| CN103807178A (en) * | 2012-11-07 | 2014-05-21 | 株式会社日立产机系统 | Screw compressor |
| CN103821713A (en) * | 2012-11-19 | 2014-05-28 | 珠海格力电器股份有限公司 | Screw rod compressor, oil path circulation system and air-conditioning unit |
| JP2015042847A (en) * | 2013-08-26 | 2015-03-05 | 日立アプライアンス株式会社 | Screw compressor |
| CN104481875A (en) * | 2014-12-19 | 2015-04-01 | 珠海格力电器股份有限公司 | Screw compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3178104A (en) * | 1962-08-20 | 1965-04-13 | Gardner Denver Co | Bearing lubrication system for compressor apparatus |
-
2017
- 2017-03-24 JP JP2017059472A patent/JP6448698B2/en active Active
- 2017-11-16 EP EP17861211.5A patent/EP3604814A4/en not_active Withdrawn
- 2017-11-16 WO PCT/JP2017/041299 patent/WO2018173362A1/en unknown
- 2017-11-16 CN CN201780003784.5A patent/CN108934174B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001323887A (en) * | 2000-05-12 | 2001-11-22 | Hitachi Ltd | Oil feed type screw compressor |
| CN101900120A (en) * | 2009-06-01 | 2010-12-01 | 株式会社日立工业设备技术 | Screw compressor |
| CN103807178A (en) * | 2012-11-07 | 2014-05-21 | 株式会社日立产机系统 | Screw compressor |
| CN103821713A (en) * | 2012-11-19 | 2014-05-28 | 珠海格力电器股份有限公司 | Screw rod compressor, oil path circulation system and air-conditioning unit |
| JP2015042847A (en) * | 2013-08-26 | 2015-03-05 | 日立アプライアンス株式会社 | Screw compressor |
| CN104481875A (en) * | 2014-12-19 | 2015-04-01 | 珠海格力电器股份有限公司 | Screw compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108934174B (en) | 2019-12-27 |
| JP6448698B2 (en) | 2019-01-09 |
| EP3604814A4 (en) | 2020-11-18 |
| EP3604814A1 (en) | 2020-02-05 |
| JP2018162694A (en) | 2018-10-18 |
| WO2018173362A1 (en) | 2018-09-27 |
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