CN107923399B - Helical-lobe compressor - Google Patents
Helical-lobe compressor Download PDFInfo
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- CN107923399B CN107923399B CN201680050344.0A CN201680050344A CN107923399B CN 107923399 B CN107923399 B CN 107923399B CN 201680050344 A CN201680050344 A CN 201680050344A CN 107923399 B CN107923399 B CN 107923399B
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The present invention is a kind of helical-lobe compressor (1), aforementioned helical-lobe compressor (1) has motor (6) and a pair of of yin-yang screw rotor (3), aforementioned motors (6) drive the armature spindle (21) of the screw rotor of a side, armature spindle (21) and motor drive shaft (31) are arranged by seperated ground and coaxially in the horizontal direction, the diameter of axle of the axis (21) of diameters of axle ratio another party of the axis (31) of one party is big, in the axis of a side, form the connecting hole (32) for being inserted into the axis of another party, the shaft connecting part (41 that the axis of the axis of one side and another party is integrally linked, 52) it is sandwiched between the outer peripheral surface (21b) of the axis of the inner peripheral surface (31b) and aforementioned another party that are configured at the axis of a side, by with the threaded hole (26 that is formed in armature spindle, 56) the fastening connecting member (28 being threadedly engaged, 5 8), the axis of a side and the axis of another party are linked by fastening.According to this structure, it is capable of providing a kind of helical-lobe compressor (1), aforementioned helical-lobe compressor (1) is, even if lubricating oil transmits on horizontally extending axis, also can effectively transmit torque between motor drive shaft (31) and armature spindle (21).
Description
Technical field
The present invention relates to helical-lobe compressors, in detail, are related to the connection construction between motor drive shaft and armature spindle
Helical-lobe compressor.
Background technique
In helical-lobe compressor, a pair of of yin-yang screw rotor is driven by motor rotation.The rotary driving force of motor is by with each
The mode of kind various kinds is transferred to screw rotor, such as has, and the motor drive shaft of motor is linked to turning for screw rotor via link mechanism
The structure (referring to patent document 1) of sub- axis.
Patent document 1: Japanese Unexamined Patent Application Publication 2015-508858 bulletin.
In helical-lobe compressor disclosed in patent document 1, motor drive shaft and armature spindle it is seperated constitute, motor drive shaft has use
In the access of the recess portion of the end of insertion armature spindle and the axle portion insert for externally threaded bolt will to be formed with, in armature spindle
End is formed with internal screw thread.The state of the recess portion of the end of armature spindle insertion motor drive shaft to be made to the external screw thread and armature spindle of bolt
End be threadedly engaged by internal screw thread by bolt fastening, motor drive shaft is thus linked to armature spindle.
In such connection construction, the hole bottom surface of the recess portion of the end face and motor drive shaft of the end of armature spindle is abutted, by
In the frictional force for the bearing surface effect that end face and hole bottom surface abut, torque is transmitted between motor drive shaft and armature spindle.Also, in order to
By the recess portion of the end insertion motor drive shaft of armature spindle, small axis is provided between the end of armature spindle and the recess portion of motor drive shaft
Gap.
It is motor configurations in the longitudinal of the top of screw rotor in helical-lobe compressor disclosed in patent document 1,
So the oil from bearing is difficult to enter shaft clearance.However, if horizontally extendingly in each axis of motor and screw rotor
The pressure-bearing type of configuration then transmits the lubricating oil of bearing lubrication in armature spindle, into shaft clearance.
Lubricating oil into shaft clearance bypasses the bearing surface between the end of armature spindle and the recess portion of motor drive shaft, thus acts on
Decline in the frictional force of bearing surface, makes the torque drop being passed between motor drive shaft and armature spindle.
Summary of the invention
Therefore, the technical problem to be solved by the present invention is to provide a kind of helical-lobe compressor, even if aforementioned helical-lobe compressor moistens
Lubricating oil is transmitted in horizontally extending axis, and torque also can be effectively transmitted between motor drive shaft and armature spindle.
In order to solve the problems, such as above-mentioned technology, according to the present invention, helical-lobe compressor below is provided.
That is, a kind of helical-lobe compressor, which is characterized in that have motor and a pair of of yin-yang screw rotor, aforementioned a pair of yin-yang
Screw rotor is housed inside in the rotor chamber of compressor main body, and aforementioned a pair of yin-yang screw rotor intermeshes, and aforementioned motors drive
Move the armature spindle of the screw rotor of the side in aforementioned a pair of of yin-yang screw rotor, the motor drive shaft of foregoing rotor axis and aforementioned motors
It is arranged in the horizontal direction by seperated ground and coaxially, in foregoing rotor axis and aforementioned motors axis, the diameters of axle ratio of the axis of one party is another
The diameter of axle of the axis of one side is big, in the axis of the aforementioned one side as major diameter, forms the connecting hole for being inserted into the axis of aforementioned another party,
It is inserted into the state of the aforementioned connecting hole of the axis of aforementioned one side formation in the axis of aforementioned another party, foregoing rotor axis is turned
Sub- side axle bearing portion and the jackshaft bearing portion making lubricating oil circulate and being lubricated are supported in a manner of double base, and aforementioned horse
It is supported up to axis by motor-side bearing portion, the shaft connecting part that the axis of the axis of aforementioned one side and aforementioned another party integrally links is sandwiched
Be configured between the inner peripheral surface of the axis of aforementioned one side and the outer peripheral surface of the axis of aforementioned another party, by be formed in foregoing rotor axis
The fastening connecting member that is threadedly engaged of threaded hole, the axis of the axis of aforementioned one side and aforementioned another party linked by fastening.
According to above structure, by shaft connecting part, the axis of a side and the axis of another party are integrally linked, and are linked by fastening
Component, the axis of a side and the axis of another party are linked by fastening, so even if the axis that lubricating oil extends in (transverse direction) in the horizontal direction
Upper transmitting also can effectively transmit torque between motor drive shaft and armature spindle.In addition, loosened by the way that connecting member will be fastened or
Fastening, is able to be easy to carry out the separation or assembling of motor drive shaft and armature spindle.
Detailed description of the invention
Fig. 1 is the sectional elevation of the helical-lobe compressor of the 1st embodiment of the invention.
Fig. 2 is the longitudinal section view of helical-lobe compressor shown in FIG. 1.
Fig. 3 is the partial sectional view of the motor drive shaft of helical-lobe compressor shown in Fig. 2.
Fig. 4 A is the IV-IV line regarding sectional view of Fig. 3.
Fig. 4 B is the enlarged view of a portion of the variation of the 1st embodiment.
Fig. 5 is the sectional elevation of the helical-lobe compressor of the 2nd embodiment of the invention.
Fig. 6 is the longitudinal section view of helical-lobe compressor shown in fig. 5.
Fig. 7 is the partial sectional view of the motor drive shaft of helical-lobe compressor shown in fig. 6.
Fig. 8 is the enlarged view of a portion of helical-lobe compressor shown in fig. 6.
Specific embodiment
Firstly, the helical-lobe compressor 1 of the 1st embodiment of the invention is described in detail referring to figs. 1 to Fig. 4 A.
Fig. 1 is the sectional elevation of the helical-lobe compressor 1 of the 1st embodiment.The helical-lobe compressor 1 is oil free screw compression
Machine.Rotor chamber is housed inside by the screw rotor 3 that the 1 couple of male rotor 3a and female rotor 3b that are engaged with no oil condition mutually are constituted
In 17, foregoing rotor room 17 is formed in the rotor case 4 of the compressor main body 2 of no oil feeding type.Cartridge housing 7 is installed on rotor case 4
One end, motor shell 5 are installed on the other end of rotor case 4.The motor shell 5 of motor 6 has motor shell main body 5a, cooling jacket 8, cover
9.Revolving part (rotor) 6a and fixing piece (stator) 6b are accommodated in motor shell main body 5a.5 end quilt cover 9 of motor shell is closed.
The outlet of gas not shown in the figure is formed in 6 side of motor of rotor case 4, the sucking of gas not shown in the figure
Mouth is formed in the opposite side of motor 6 at rotor case 4.In each shaft end of the opposite side of the motor 6 of male rotor 3a and female rotor 3b,
Intermeshing timing gear is installed.It is driven in general, male rotor 3a is rotated by motor 6.Pass through the rotation of the motor drive shaft 31 of motor 6
Turning driving, the male rotor axis 21 of male rotor 3a rotates, and then via timing gear, in a manner of synchronous with male rotor axis 21, yin
The female rotor axis 22 of rotor 3b rotates.
Motor 6 is the driving source for rotating the armature spindle of screw rotor 3 (usually male rotor axis 21).6 quilt of motor
Converter Control revolving speed not shown in the figure, for example, being operated with being more than the high speed rotation of 20000rpm.The revolving part of motor 6
6a is fixed in the outer peripheral portion of motor drive shaft 31, and fixing piece 6b is configured to leave the outside of revolving part 6a.It is cold in motor shell 5
But collet 8 is equipped between fixing piece 6b and motor shell main body 5a.
Motor drive shaft 31 has with from 3 side of screw rotor to multiple reducing axle portions of 13 side undergauge of motor-side bearing portion.Horse
It is for example made of up to axis 31 the 1st axle portion 44 and the 2nd axle portion 45.1st axle portion 44 of major diameter is locked to the side end face of revolving part 6a.Rotation
Turn part 6a to be assembled by the 2nd axle portion 45 relative to path.Connecting hole 32 throughout the 1st axle portion 44 whole and the 2nd axle portion 45 one
Part axially extends.Centre bore 33 is axially extended throughout the remainder of the 2nd axle portion 45.Make the convex of bearing supporting mass 37
Edge be connected to the 2nd axle portion 45 and the side end face of revolving part 6a each in the state of fastened by installation bolt 38, thus
Revolving part 6a is fixed on motor drive shaft 31.
Medial surface along motor shell main body 5a assembles cooling jacket 8, so that the state that mutual flange part abuts is by spiral shell
Bolt fastening, thus cooling jacket 8 is fixed on motor shell main body 5a.For the cold of the liquid cooling mediums such as Cooling Water or cooling oil flowing
But access 8b is formed in the cooling jacket portion 8a of cooling jacket 8.By the axial two sides for being respectively arranged at cooling channel 8b
Gasket prevents the leakage in the cooling channel 8b liquid cooling medium flowed.
The male rotor axis 21 of screw rotor 3 and the motor drive shaft 31 of motor 6 it is seperated constitute, with the axis 21,31 of two sides along water
Square to (transverse direction) axially extending mode, integrally linked by aftermentioned key 41 (shaft connecting part).The horse of male rotor axis 21
Opposite side up to 6 is supported on cartridge housing 7 by rotor-side bearing portion 11.6 side of motor of male rotor axis 21 is by jackshaft bearing portion 12
It holds in rotor case 4.That is, male rotor axis 21 supports in a manner of by 12 double base of rotor-side bearing portion 11 and jackshaft bearing portion.Gu
Bearing supporting mass 37 due to the motor-side end of motor drive shaft 31 is supported on cover 9 by motor-side bearing portion 13.Therefore, by integrally
The male rotor axis 21 and motor drive shaft 31 of connection extend coaxially into the horizontal direction (transverse direction), by rotor-side bearing portion 11, jackshaft
This 3 position bearings (i.e. 3 dot points) of bearing portion 12, motor-side bearing portion 13.On the other hand, the female rotor axis 22 of female rotor 3b is borrowed
Rotor-side bearing portion 15 and jackshaft bearing portion 16 is helped to be supported in a manner of double base in cartridge housing 7 and rotor case 4.
Rotor-side bearing portion 11 is for example by axial bearing (4 point contact ball bearing) 11a and transverse bearing (roller bearing)
11b is constituted.Jackshaft bearing portion 12 is for example by transverse bearing (roller bearing) 12a and axial bearing (4 point contact ball bearing) 12b
It constitutes.Motor-side bearing portion 13 is for example made of transverse bearing (deep-groove bearing).In addition, rotor-side bearing portion 15 for example by
Axial bearing (4 point contact ball bearing) 15a and transverse bearing (roller bearing) 15b are constituted.Jackshaft bearing portion 16 is for example by diameter
It is constituted to bearing (roller bearing) 16a and axial bearing (4 point contact ball bearing) 16b.Each bearing uses opening bearing,
So that making lubricating oil circulation to lubricate.
Shaft sealing 14a is set to the male rotor axis 21 between rotor-side bearing portion 11 and male rotor 3a.Shaft sealing 14c
The male rotor axis 21 being set between male rotor 3a and jackshaft bearing portion 12.Shaft sealing 14b is set to rotor-side bearing portion 15
Female rotor axis 22 between female rotor 3b.Shaft sealing 14d is set to the yin between female rotor 3b and jackshaft bearing portion 16 and turns
Sub- axis 22.Each shaft sealing 14a, 14b, 14c, 14d for example have as the viscous sealing element of oil seal and close as air
The mechanical sealing member of sealing.The viscous sealing element for being set to bearing side prevents lubricating oil from flowing into rotor chamber 17.It is set to screw rod
The mechanical sealing member of 3 side of rotor prevents lubricating oil to the inflow of rotor chamber 17 and compressed gas more than 17 essential limit of rotor chamber
It leaks out.
The nose portion of bearing supporting mass 37 is inserted into the centre bore 33 of motor drive shaft 31, so that the flange of bearing supporting mass 37
The state that portion is connected to the side end face of motor drive shaft 31 is fastened with installation bolt 38.Bearing supporting mass 37 is fixed on motor drive shaft as a result,
31, and one end of 13 side of motor-side bearing portion of centre bore 33 is closed.As shown in figure 3, the inner ring quilt of motor-side bearing portion 13
The locating snap ring 61 for being disposed in bearing supporting mass 37 positions in the axial direction immovablely.On the other hand, 13 phase of motor-side bearing portion
The bearing pilot hole 9a of cover 9 is installed by clearance fit, thus the outer ring of motor-side bearing portion 13 can be along axial shifting
It is dynamic.That is, motor-side bearing portion 13 is installed on motor 6 in a manner of the axial sliding for allowing outer ring.According to this structure, even if horse
It is stretched up to axis 31 due to thermal expansion, also unreasonable load can be prevented to be applied in motor-side bearing portion 13.
Cover 9 is assemblied in cooling jacket 8 in a manner of closing the opening of motor shell 5.So that cover 9 flange part be connected to it is cold
But thus the state of the side end face of collet 8 covers 9 and is fixed on cooling jacket 8 by bolt fastening.For by lubricating oil to rotor-side
The oil-feed port (not shown) that bearing portion 11,15 supplies is formed in cartridge housing 7.For by lubricating oil to jackshaft bearing portion 12,
The intermediate oil-feed port 64 and oil supplying hole 82a of 16 supplies are formed in rotor case 4.For lubricating oil to be supplied to motor-side bearing portion 13
Motor-side oil-feed port 9c be formed in cover 9.Oil supplying hole 82a is, one end is communicated with intermediate oil-feed port 64, and the other end and is formed
Space between transverse bearing 12a (16a) and axial bearing 12b (16a) communicates.In addition, rotor case 4 has intermediate connection portion
54, aforementioned intermediate connection portion 54 is one end and the clearance portion phase being formed between transverse bearing 12a and intermediate shaft sealing 14a
It is logical, and the other end is communicated with motor chamber 20.The lubricating oil for flowing to 3 side of screw rotor from transverse bearing 12a is connected across centre
Logical portion 54 flows in motor chamber 20.Intermediate oil discharge outlet 66 is formed in the bottom of the motor chamber 20 of 12 side of jackshaft bearing portion, motor-side
Bearing oil discharge outlet 78 is formed in the bottom of the motor chamber 20 of 13 side of motor-side bearing portion.Also, come together in the bottom of motor chamber 20
Lubricating oil pass through intermediate oil discharge outlet 66 and motor side bearing oil discharge outlet 78 as oil discharge outlet, be discharged to outside motor chamber 20,
It is recycled to oil tank not shown in the figure.
The diameter of axle of the male rotor axis 21 of the diameters of axle ratio screw rotor 3 of the motor drive shaft 31 of motor 6 is big.For by male rotor axis 21
6 side of motor connection end 24 insertion connecting hole 32 be formed in the motor drive shaft 31 as major diameter.It is bigger than 32 diameter of connecting hole
Centre bore 33 be formed in motor drive shaft 31.By centre bore 33 and connecting hole 32, by axially inside penetrating through for motor drive shaft 31
Through hole is formed in motor drive shaft 31, and motor drive shaft 31 is in hollow structure.Step is formed in centre bore 33 and the connection of path of major diameter
The boundary in hole 32.By the step of the through hole of perforation motor drive shaft 31, fastening connection flange 27 can be in centre bore 33 freely
Ground insert, but walk to be at the end relative to connecting hole 32.
In the inner peripheral surface 31b for the connecting hole 32 for being set to motor drive shaft 31, it is formed with such as section and is rectangle and is concave
2nd keyway 31a.Outer peripheral surface 21b in the connection end 24 for being set to male rotor axis 21, is formed with such as section and is rectangle and is
Concave 1st keyway 24a.By the 1st keyway 24a and the 2nd keyway 31a, section is the keyway 42 of rectangle along axial composition.Even
Knot end 24 is inserted into the state of connecting hole 32, and section is that the key 41 of rectangle is sandwiched the connecting hole being configured in motor drive shaft 31
Between 32 inner peripheral surface 31b and the outer peripheral surface 21b for linking end 24 of male rotor axis 21.At this point, key 41 is embedded in keyway 42, key 41
It is embedded in keyway 42.Therefore, key 41 is as the shaft connecting part work for integrally linking motor drive shaft 31 and male rotor axis 21.
In 13 side of motor-side bearing portion of connection end 24, the fastening connection end 25 that threaded hole 26 is formed is arranged at axis
End surface side.The threaded hole 26 of the threaded portion 28b and fastening connection end 25 that fasten binder bolt 28 are threadedly engaged.Connect across fastening
The screw thread insertion hole for tying flange 27, the fastening binder bolt 28 as fastening connecting member are inserted through.If making fastening connection flange
27 insertion centre bores 33 in the state of the engaging of the step of through hole fasten fastening binder bolt 28, then male rotor axis 21
Link end 24 close to 13 1 side of motor-side bearing portion, the head 28a for fastening binder bolt 28 is locked to fastening connection flange 27.
As a result, motor drive shaft 31 and male rotor axis 21 are linked by fastening by fastening binder bolt 28.In this way, turning in motor drive shaft 31 and sun
In the state that sub- axis 21 is by 41 one connection of key, motor drive shaft 31 and male rotor axis 21 are connected by fastening binder bolt 28 by fastening
Knot.
Motor drive shaft 31 and male rotor axis 21 are integrally linked by the key 41 as shaft connecting part, by as fastening linking part
The motor drive shaft 31 and male rotor axis 21 of the fastening fastening connection of binder bolt 28 of part work as one piece of an axis body.Also,
It in the inserted structure using key 41, is not influenced by lubricating oil, so even if lubricating oil turns in horizontally extending sun
Sub- axis 21 transmits and enters among connecting hole 32, also can effectively transmit torque between motor drive shaft 31 and male rotor axis 21.
At this point, fastening binder bolt 28 head 28a be located at by by motor drive shaft 31 in being formed axially through in a manner of
In heart hole 33.In detail, the mode near axial end of the head 28a to be located at the fastening connection end 25 of male rotor axis 21,
It submerges inside the centre bore 33 of motor drive shaft 31.That is, being configured to, the axial length of fastening binder bolt 28 shortens.According to this structure,
The influence for fastening the thermal expansion of binder bolt 28 tails off, and can effectively fasten.In addition, the connection end 24 of male rotor axis 21 and
The connecting hole 32 and centre bore 33 of fastening connection end 25 and motor drive shaft 31 extend coaxially into.
The transverse bearing 12a of jackshaft bearing portion 12 is installed in 6 side of motor of rotor case 4.The inner ring phase of transverse bearing 12a
Position fixed for male rotor axis 21, the outer ring of transverse bearing 12a is by locating snap ring relative to the fixed position of rotor case 4.Via
Spacer 18, bearing support 19 are installed on 6 side of motor of rotor case 4.By by bolt fastening, bearing support 19
And spacer 18 is fixed in 6 side of motor of rotor case 4.The inner ring of axial bearing 12b turns by stop nut 23a relative to sun
The fixed position of sub- axis 21.
Similarly, the transverse bearing 16a of jackshaft bearing portion 16 is installed on 6 side of motor of rotor case 4.Transverse bearing 16a's
Inner ring is relative to the fixed position of female rotor axis 22, and the outer ring of transverse bearing 16a is by locating snap ring relative to 4 fixed bit of rotor case
It sets.The inner ring of axial bearing 16b is by stop nut 23b relative to the fixed position of female rotor axis 22.
In addition, constituting the inner ring and outer ring of bearing and rolling element is usually made of steel and conductive.Therefore, it comes from
The high-frequency current in the inverter circuit of motor 6 flows through the jackshaft bearing portion 12 and motor side axle for supporting the motor drive shaft 31 of motor 6
Bearing portion 13 occurs to generate shaft voltage between jackshaft bearing portion 12 and the outer ring and inner ring of motor-side bearing portion 13 and damage bearing
Galvano-cautery phenomenon.Therefore, jackshaft bearing portion 12 and motor-side bearing portion 13 are by electric insulation.Bearing refers to example by electric insulation
The rolling element of such as bearing is made of the inorganic system's insulating materials of ceramics, the outer surface quilt of at least one party of the inner ring and outer ring of bearing
The covering of the organic systems insulating materials such as epoxy resin, unsaturated polyester resin.In addition, in the bearing part, shell of bearing support,
It can be and be connected to the part of bearing and covered by insulating materials.In this way, jackshaft bearing portion 12 and motor-side bearing portion 13 are electrical
Insulation, thereby, it is possible to be difficult to generate the high-frequency current due to the inverter circuit from motor 6 and the bearing 12,13 is damaged
The galvano-cautery phenomenon of wound.
In the above-described embodiment, in male rotor axis 21 and motor drive shaft 31, the motor drive shaft 31 of the axis work as a side
Diameters of axle ratio as another party axis work male rotor axis 21 the diameter of axle it is big, relative to the connecting hole 32 for being formed in motor drive shaft 31
It is inserted into the connection end 24 of male rotor axis 21, thus motor drive shaft 31 is linked to male rotor axis 21.
In contrast, as shown in Figure 4 B, the diameter of axle of the diameters of axle ratio motor drive shaft 31 of male rotor axis 21 is big, can be configured to, sun
Armature spindle 21 works as the axis of a side, and motor drive shaft 31 works as the axis of another party.In the variation shown in Fig. 4 B, setting
It is placed on the outer peripheral surface 34b of connection end 34 of motor drive shaft 31, such as is formed with section and is rectangle and is concave 2nd keyway
31a.On the inner peripheral surface 24b for the connecting hole 23 for being set to male rotor axis 21, such as it is formed with section and is rectangle and is concave
1st keyway 24a.By the 1st keyway 24a and the 2nd keyway 31a, section is the keyway 42 of rectangle along axial composition.
In the state that connecting hole 23 of male rotor axis 21 are inserted into the connection end 34 of motor drive shaft 31, section is the key of rectangle
The inner peripheral surface 24b of the connecting hole 23 of the outer peripheral surface 34b and male rotor axis 21 for the connection end 34 that 41 sandwicheds configured in motor drive shaft 31
Between.At this point, key 41 is embedded in keyway 42, key 41 is embedded in keyway 42.Therefore, key 41 is used as motor drive shaft 31 and male rotor axis 21
The shaft connecting part work integrally linked.
Then, referring to Fig. 5 to Fig. 8, and the 2nd embodiment of the invention is described in detail.In the 2nd embodiment
In, identical appended drawing reference is marked for the structural element with the identical function of structural element in the first embodiment described above,
The repetitive description thereof will be omitted.
In the helical-lobe compressor 1 of the 2nd embodiment, by the conical ring 52 as shaft connecting part, motor drive shaft 31 and sun
Armature spindle 21 is integrally linked.
Conical ring 52 is also referred to as wedging ring, will using the frictional force of the circumferential surface generation in the ring for being configured at assembly space
Motor drive shaft 31 and male rotor axis 21 link.Conical ring 52 is by the wedge-shaped inner ring 52a of the inclined surface with a side and has and this
The wedge-shaped outer ring 52b of the inclined surface of another party of the inclined surface engaging of one side combines to constitute.
Male rotor axis 21 connection end 24 outer peripheral surface 21b and motor drive shaft 31 connecting hole 32 inner peripheral surface 31b it
Between be formed with connecting shaft hole 35.Connecting shaft hole 35 is the circular assembly space that the end of intercommunicating pore 32 is expanding, to screw rotor 3
Side opening.52 sandwiched of conical ring is configured at the connecting shaft hole 35.Sleeve 53 is equipped in 3 side of screw rotor of conical ring 52.Sleeve
53 are connected to expanding pushing stage portion 29 compared with linking end 24.By the sleeve 53, the axis normal surface of inner ring 52a by
The direction of motor-side bearing portion 13 pushes.At this point, the outer peripheral surface of outer ring 52b is pushed to radial outside, relative to connecting shaft hole 35
Inner peripheral surface 31b contiguity and rub engaging.At the same time, the inner peripheral surface of inner ring 52a is pushed to radially inner side, relative to connection
The outer peripheral surface 21b of end 24 touches and the engaging that rubs.Therefore, motor drive shaft 31 and male rotor axis 21 by conical ring 52 inner peripheral surface
And frictional force at outer peripheral surface and integrally linked.
The outer peripheral surface of outer ring 52b and the inner peripheral surface 31b in connecting shaft hole 35 touch, the inner peripheral surface of inner ring 52a and connection end 24
Outer peripheral surface 21b contiguity.As a result, in substantial between the outer peripheral surface 21b of connection end 24 and the inner peripheral surface 31b in connecting shaft hole 35
State very close to each other.Therefore, even if from the lubricating oil of jackshaft bearing portion 12 in horizontally extending male rotor axis 21
The feelings entered between the outer peripheral surface 21b of connection end 24 and the inner peripheral surface 31b in connecting shaft hole 35 will not substantially occur for transmitting
Condition.Therefore, torque can be effectively transmitted between motor drive shaft 31 and male rotor axis 21.In addition, in the periphery of connection end 24
Increase and decrease the quantity along the conical ring 52 being axially arranged between face 21b and the inner peripheral surface 31b in connecting shaft hole 35, thus, it is possible to adjust to pass
Pass the size of torque.
In the 2nd embodiment, generated using the fastening connection structure of fastening binder bolt 58 to motor-side bearing portion 13
Direction pushing stage portion 29 pushing force, and by motor drive shaft 31 and male rotor axis 21 fastening connection.It is fastened as using
The fastening connection structure of binder bolt fastens the head of binder bolt 28 with the 1st above-mentioned embodiment it is equally possible that being
Portion 28a is located at the inside of the centre bore 33 of motor drive shaft 31.In detail, it is also possible to head 28a to be located at male rotor axis 21
Mode near the axial end of fastening connection end 25, submerges inside the centre bore 33 of motor drive shaft 31.However, in the 2nd embodiment party
In formula, the fastening connection structure different from the 1st embodiment is used.
In the fastening connection structure of the 2nd embodiment, the head 58a of fastening binder bolt 58 is located at the outer of motor drive shaft 31
Side is illustrated the fastening connection structure.
Connecting hole 32 for being inserted into the connection end 24 of 6 side of motor of male rotor axis 21 is formed in motor drive shaft 31.In horse
Up to axis 31, it is formed with the bolt hole 55 smaller than 32 diameter of connecting hole.The axle portion of fastening binder bolt 58 is inserted through bolt hole 55.It borrows
Help the bolt hole 55 of path and the connecting hole 32 of major diameter, by motor drive shaft 31 along axially through through hole be formed in motor drive shaft 31
Inside, motor drive shaft 31 are hollow structure.
Motor drive shaft 31 has with multiple reducing axle portions of undergauge from 3 side of screw rotor to 13 side of motor-side bearing portion.
Motor drive shaft 31 is for example with the 1st axle portion 44, the 2nd axle portion 45, the 3rd axle portion 46, the 4th axle portion 47.Connecting hole 32 spreads the 1st axle portion 44
Whole and the 2nd axle portion 45 a part extend.Bolt hole 55 throughout the remainder of the 2nd axle portion 45, the 3rd axle portion 46 it is complete
The fully extension in portion, the 4th axle portion 47.By 3 side of screw rotor the 1st axle portion 44 and be installed on the retainer of the 3rd axle portion 46
63, the revolving part 6a relative to the assembly of the 2nd axle portion 45 is fixed on motor drive shaft 31.4th axle portion 47 of 13 side of motor-side bearing portion is made
For the work of bearing support 47.Bearing support 47 is supported on cover 9 by motor-side bearing portion 13.
The inner ring of motor-side bearing portion 13 is by being disposed in the locating snap ring 61 of bearing supporting mass 37 by along axial immovable
Ground positioning.On the other hand, motor-side bearing portion 13 is installed relative to bearing pilot hole 9a with clearance fit, thus motor side bearing
The outer ring in portion 13 can be axially moveable.That is, motor-side bearing portion 13 is installed in a manner of the axial sliding for allowing outer ring
Motor 6.
Spring members 62 are equipped between the outer ring of motor-side bearing portion 13 and cover 9.Spring members 62 are, for example, waveform
Spring, by the outer ring of motor-side bearing portion 13 along the axial force distribution of 3 side of screw rotor.According to this structure, though motor drive shaft 31 by
Stretch in thermal expansion, the outer ring of motor-side bearing portion 13 also by along axial force distribution while move, so motor-side bearing portion
13 are difficult to the influence of the thermal expansion by motor drive shaft 31, and are also able to maintain bearing pressurization.
Axial end in 13 side of motor-side bearing portion of connection end 24 is formed with threaded hole 56.Fasten binder bolt 58
Threaded portion 58b and the threaded hole 56 of connection end 24 are threadedly engaged.If fastening binder bolt 58 is fastened, male rotor axis 21
Link end 24 close to 13 1 side of motor-side bearing portion, the head 58a for fastening binder bolt 58 is locked to bearing support 47
Side end face.As a result, motor drive shaft 31 and male rotor axis 21 are linked by fastening by fastening binder bolt 58.By being configured to fasten
The head 58a of binder bolt 58 is located at the outside of motor drive shaft 31, can be realized the machining period of motor drive shaft 31, parts count is cut
Subtract, using the simplification for fastening connection operation of fastening binder bolt 58.
Therefore, in the helical-lobe compressor 1 of the 2nd embodiment, in motor drive shaft 31 and male rotor axis 21 by conical ring 52
In the state of one connection, motor drive shaft 31 and male rotor axis 21 are linked by fastening binder bolt 58 by fastening.According to this structure,
It is transmitted even if from the lubricating oil of jackshaft bearing portion 12 in the male rotor axis 21 that (transverse direction) in the horizontal direction extends, it also can be in horse
Torque is effectively transmitted up between axis 31 and male rotor axis 21.In addition, loosening or fastening by the way that binder bolt 58 will be fastened, respectively
It can easily be done the separation or assembling of male rotor axis 21 and motor drive shaft 31.
In addition, in the present invention, in the armature spindle 21 (22) of screw rotor 3 and the motor drive shaft 31 of motor 6, the axis 31 of one party
Diameters of axle ratio another party axis 21 the diameter of axle it is big, form the axis 21 for being inserted into another party in the axis 31 of a side as major diameter
Connecting hole 32.About this, in the respective embodiments described above, the male rotor axis of the diameters of axle ratio screw rotor 3 of the motor drive shaft 31 of motor 6
21 diameter of axle is big, relative to the motor drive shaft 31 as major diameter, is formed with the connecting end of 6 side of motor for being inserted into male rotor axis 21
The connecting hole 32 in portion 24.It may, however, also be variation as shown in Figure 4 is such, the axis of the male rotor axis 21 of screw rotor 3
Diameter is bigger than the diameter of axle of the motor drive shaft 31 of motor 6, relative to the male rotor axis 21 as major diameter, is formed for being inserted into motor drive shaft 31
Link the connecting hole 23 of end 34.
In addition, in the above-described embodiment, the armature spindle conduct of the screw rotor of a side of a pair of of yin-yang screw rotor 3
The motor drive shaft 31 of male rotor axis 21, motor 6 is linked to the male rotor axis 21 of screw rotor 3.It may, however, also be the spiral shell of a side
The armature spindle of bar rotor is linked to female rotor axis 22 as female rotor axis 22, motor drive shaft 31.
In addition, the structure of rotor-side bearing portion 11, jackshaft bearing portion 12, motor-side bearing portion 13 and each shaft sealing 16a,
The structure of 16b, 17a, 17b are not limited to above embodiment.Be applicable in above-mentioned shaft connecting part 41,52 helical-lobe compressor 1 be with
The oil free type that the high speed of 20000rpm or so is driven in rotation, be also possible to import cooling oil and with the low of 3000rpm or so
The oil injection type that speed is driven in rotation.
As seen from the above description, in helical-lobe compressor 1 of the invention, have a pair of of yin-yang screw rotor 3 and motor 6,
Aforementioned a pair of yin-yang screw rotor 3 is contained in the rotor chamber 17 of compressor main body 2, and aforementioned a pair of yin-yang screw rotor 3 is mutually
Engagement, aforementioned motors 6 drive the armature spindle 21 of the screw rotor of the side in aforementioned a pair of of yin-yang screw rotor 3, foregoing rotor
The motor drive shaft 31 of axis 21 and aforementioned motors 6 is seperated, and the motor drive shaft 31 of foregoing rotor axis 21 and aforementioned motors 6 is by along level
Direction is coaxially arranged, in foregoing rotor axis 21 and aforementioned motors axis 31, the axis 21 of diameters of axle ratio another party of the axis 31 of one party
The diameter of axle it is big, in the axis 31 of the aforementioned one side as major diameter, form the connecting hole 32, In for being inserted into the axis 21 of aforementioned another party
The axis 21 of aforementioned another party is inserted into the state of the aforementioned connecting hole 32 for being formed in the axis 31 of aforementioned one side, foregoing rotor axis 21
By rotor-side bearing portion 11 and supporting lubricating oil circulation in a manner of double base come the jackshaft bearing portion 12 lubricated, and
Aforementioned motors axis 31 is supported by motor-side bearing portion 13, and the axis 21 of the axis 31 of aforementioned one side and aforementioned another party is integrally linked
Shaft connecting part 41,52 is sandwiched the outer peripheral surface of the axis 21 of the inner peripheral surface 31b and aforementioned another party that are configured at the axis 31 of aforementioned one side
It is aforementioned by the fastening connecting member 28,58 being threadedly engaged with the threaded hole 26,56 for being formed in foregoing rotor axis 21 between 21b
The axis 31 of one side and the axis 21 of aforementioned another party are linked by fastening.
According to above structure, by shaft connecting part 41,52, the axis 31 of a side and the axis 21 of another party are integrally linked, and are borrowed
Fastening connecting member 28,58 is helped, the axis 31 of a side and the axis 21 of another party are linked by fastening, so even if from jackshaft bearing portion
12 lubricating oil is transmitted in the axis 21,31 that (transverse direction) in the horizontal direction extends, also can be between motor drive shaft 31 and armature spindle 21
Effectively transmit torque.In addition, loosening or fastening by the way that connecting member 28,58 will be fastened, it is able to be easy to carry out motor
The separation or assembling of axis 31 and armature spindle 21.
The present invention can also have following feature on the basis of features described above.
That is, aforementioned shaft connecting part 41 is, insertion is set to the aforementioned inner peripheral surface 31b of the axis 31 of aforementioned one side and aforementioned another
The key 41 of the keyway 42 of the outer peripheral surface 21b of the axis 21 of side.According to this structure, using the inserted structure of key 41 not by lubricating oil
It influences, so even if lubricating oil transmits on horizontally extending axis 21,31 and enters among connecting hole 32, it also can be
Torque is effectively transmitted between motor drive shaft 31 and male rotor axis 21.
Aforementioned shaft connecting part 52 is the conical ring that the inner ring 52a engaged with each other by mutual inclined surface and outer ring 52b are constituted
52.According to this structure, the handling ease of the axis 21 of the axis 31 and another party of a side, the separation or group of motor drive shaft 31 and armature spindle 21
Dress is also easy.
Aforementioned threads hole 26 is formed in the fastening connection end 25 of foregoing rotor axis 21, the head of aforementioned fastening connecting member 28
Mode near axial end of the portion 28a to be located at aforementioned fastening connection end 25 submerges the inside of aforementioned motors axis 31.According to this
The axial length of structure, fastening connecting member 28 shortens, and the influence for fastening the thermal expansion of connecting member 28 tails off, can be effectively
Fastening.
Aforementioned motors side axle bearing portion 13 is installed on aforementioned motors 6 in a manner of allowing the axial sliding at outer ring.According to
The outer ring of the structure, motor-side bearing portion 13 can be axially moveable, even if motor drive shaft 31 is stretched due to thermal expansion, also can
It prevents from applying unreasonable load relative to motor-side bearing portion 13.
The outer ring of aforementioned motors side axle bearing portion 13 is by spring members 62 along axial force distribution.According to this structure, even if motor drive shaft
31 are stretched due to thermal expansion, and the outer ring of motor-side bearing portion 13 is also moved while by along axial force distribution, so motor-side
Bearing portion 13 is difficult to the influence of the thermal expansion by motor drive shaft 31, and is also able to maintain bearing pressurization.
Aforementioned jackshaft bearing portion 12 and aforementioned motors side axle bearing portion 13 are by electric insulation.According to this structure, can make due to
The high-frequency current in the inverter circuit from motor 6 and galvano-cautery phenomenon that the bearing 12,13 is damaged are difficult to generate.
Aforementioned compressor main body 2 be have a pair of of the yin-yang screw rotor 3 engaged with no oil condition mutually without fuel feeding
Formula, aforementioned jackshaft bearing portion 12 is located at the discharge side of aforementioned compressor main body 2, and aforementioned motors 6 have oil discharge outlet 66, aforementioned row
Hydraulic fluid port 66 is used to circulate bearing portion 12 between in the foregoing and the aforementioned lubricating oil that flows into the motor chamber of the motor 6 20 is to horse
It is discharged outside up to room 20.According to this structure, lubricating oil can energetically be made to flow to 20 side of motor chamber locating for shaft connecting part 41,52,
So lubricating oil can be inhibited to flow to 17 side of rotor chamber as much as possible.
Description of symbols
1: helical-lobe compressor (oil free screw compressor) 2: compressor main body 3: screw rotor 3a: male rotor 3b: yin
Rotor 4: rotor case 5: motor shell 5a: motor shell main body 6: motor 6a: revolving part (rotor) 6b: fixing piece (stator)
7: cartridge housing 8: cooling jacket 9: cover 9a: bearing pilot hole 11: rotor-side bearing portion 12: jackshaft bearing portion 13: motor
Side axle bearing portion 17: rotor chamber 20: motor chamber 21: male rotor axis (armature spindle；The axis of another party) 21b: outer peripheral surface 22: yin
Armature spindle (armature spindle) 24: connection the 24a: the 1 keyway of end (keyway) 25: fastening connection end 26: threaded hole 27: tight
Be connected knot flange 28: fastening binder bolt (fastening connecting member) 28a: head 28b: threaded portion 29: pushing stage portion
31: motor drive shaft (axis of a side) 31a: the 2 keyway (keyway) 31b: inner peripheral surface 32: connecting hole (through hole) 33: centre bore
(through hole) 35: connecting shaft hole 36: threaded hole 37: bearing supporting mass 41: key (shaft connecting part) 42: keyway 47: bearing branch
Bearing portion 52: conical ring (shaft connecting part) 53: sleeve 55: bolt hole (through hole) 56: threaded hole 58: fastening binder bolt
(fastening connecting member) 61: locating snap ring 62: spring members.
Claims (8)
1. a kind of helical-lobe compressor, which is characterized in that
Have motor and a pair of of yin-yang screw rotor,
Aforementioned a pair of yin-yang screw rotor is housed inside in the rotor chamber of compressor main body, and aforementioned a pair of yin-yang screw rotor is mutual
Engagement,
Aforementioned motors drive the armature spindle of the screw rotor of the side in aforementioned a pair of of yin-yang screw rotor,
The motor drive shaft of foregoing rotor axis and aforementioned motors is seperated, and the motor drive shaft of foregoing rotor axis and aforementioned motors is by along water
Square to being coaxially arranged,
It is big in the diameter of axle of foregoing rotor axis and aforementioned motors axis, the axis of diameters of axle ratio another party of the axis of one party,
In the axis of the aforementioned one side as major diameter, the connecting hole for being inserted into the axis of aforementioned another party is formed,
It is inserted into the state of the aforementioned connecting hole of the axis of aforementioned one side formation in the axis of aforementioned another party, foregoing rotor axis
It is supported in a manner of double base by rotor-side bearing portion and the jackshaft bearing portion making lubricating oil circulate and being lubricated, and preceding
Motor drive shaft is stated to be supported by motor-side bearing portion,
The shaft connecting part that the axis of the axis of aforementioned one side and aforementioned another party integrally links is sandwiched to the axis for being configured at aforementioned one side
Inner peripheral surface and aforementioned another party axis outer peripheral surface between, by what is be threadedly engaged with the threaded hole for being formed in foregoing rotor axis
The axis of fastening connecting member, the axis of aforementioned one side and aforementioned another party are linked by fastening,
Aforementioned motors have an oil discharge outlet, aforementioned oil discharge outlet be used for bearing portion circulation between in the foregoing and to the motor chamber of the motor
The aforementioned lubricating oil of interior inflow is discharged to outside motor chamber.
2. helical-lobe compressor as described in claim 1, which is characterized in that
Aforementioned shaft connecting part is key, and previous key insertion is set to the aforementioned inner peripheral surface of the axis of aforementioned one side and the axis of aforementioned another party
Outer peripheral surface keyway.
3. helical-lobe compressor as described in claim 1, which is characterized in that
Aforementioned shaft connecting part is the outer ring engaged with each other by mutual inclined surface and the conical ring that inner ring is constituted.
4. helical-lobe compressor as claimed any one in claims 1 to 3, which is characterized in that
Aforementioned threads hole is formed in the fastening connection end of foregoing rotor axis,
Mode near axial end of the head of aforementioned fastening connecting member to be located at aforementioned fastening connection end submerges aforementioned horse
Up to the inside of axis.
5. helical-lobe compressor as claimed any one in claims 1 to 3, which is characterized in that
Aforementioned motors side axle bearing portion is installed on aforementioned motors in a manner of allowing the axial sliding at outer ring.
6. helical-lobe compressor as claimed in claim 5, which is characterized in that
The outer ring of aforementioned motors side axle bearing portion is by spring members along axial force distribution.
7. helical-lobe compressor as claimed any one in claims 1 to 3, which is characterized in that
Aforementioned jackshaft bearing portion and aforementioned motors side axle bearing portion are by electric insulation.
8. helical-lobe compressor as claimed any one in claims 1 to 3, which is characterized in that
Aforementioned compressor main body is no oil feeding type, and aforementioned compressor main body has a pair of the yin engaged with no oil condition mutually
Positive screw rotor,
Aforementioned intermediate bearing portion is located at the discharge side of aforementioned compressor main body.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-169402 | 2015-08-28 | ||
| JP2015169402A JP6476093B2 (en) | 2015-08-28 | 2015-08-28 | Screw compressor |
| PCT/JP2016/072287 WO2017038334A1 (en) | 2015-08-28 | 2016-07-29 | Screw compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107923399A CN107923399A (en) | 2018-04-17 |
| CN107923399B true CN107923399B (en) | 2019-11-22 |
Family
ID=58187327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680050344.0A Active CN107923399B (en) | 2015-08-28 | 2016-07-29 | Helical-lobe compressor |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6476093B2 (en) |
| CN (1) | CN107923399B (en) |
| TW (1) | TWI621777B (en) |
| WO (1) | WO2017038334A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921541A (en) * | 2019-03-26 | 2019-06-21 | 上海欧仕格压缩机有限公司 | A kind of permanent magnetism single-bearing machine and the integral compressor using the motor |
| CN111963427B (en) * | 2019-05-20 | 2022-06-14 | 复盛实业(上海)有限公司 | Screw compressor |
| JP7153622B2 (en) * | 2019-08-26 | 2022-10-14 | 東芝三菱電機産業システム株式会社 | Stator torque transmission structure, electric motor drive system, and method of assembling stator torque transmission structure |
| JP2021122888A (en) * | 2020-02-04 | 2021-08-30 | アズビル株式会社 | Actuator device |
| CN111207154A (en) * | 2020-02-08 | 2020-05-29 | 浙江德成机械科技有限公司 | Novel hydraulic coupling device |
| BE1029297B1 (en) * | 2021-08-12 | 2022-11-08 | Atlas Copco Airpower Nv | Dental compressor drivetrain |
| KR20240118839A (en) * | 2022-01-10 | 2024-08-05 | 파커-한니핀 코포레이션 | Integrated assembly of electric motors, hydraulic pumps, and electronic drive devices and associated cooling configuration |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62209206A (en) * | 1986-02-26 | 1987-09-14 | エフ エフ ブイ トランスミツシヨン エイ ビ− | Frictional joint |
| JPH02145695U (en) * | 1989-05-12 | 1990-12-11 | ||
| JPH05133360A (en) * | 1991-11-13 | 1993-05-28 | Hitachi Ltd | Nonlubricated screw compressor |
| JPH06346876A (en) * | 1993-06-07 | 1994-12-20 | Hitachi Ltd | Hermetic screw compressor |
| EP1207306A2 (en) * | 2000-11-17 | 2002-05-22 | FINI ELETTROCOSTRUZIONI MECCANICHE S.p.A. | Screw compressor |
| CN1499080A (en) * | 2002-11-01 | 2004-05-26 | ��ʽ�������Ƹ��� | Screw compressor |
| JP2007064424A (en) * | 2005-09-01 | 2007-03-15 | Daihatsu Motor Co Ltd | Mounting device of power transmission ring |
| CN2886188Y (en) * | 2006-04-25 | 2007-04-04 | 豫新航空环控设备有限公司 | Detachable coupling |
| JP2008199801A (en) * | 2007-02-14 | 2008-08-28 | Hitachi Industrial Equipment Systems Co Ltd | Fan system |
| CN104204530A (en) * | 2012-02-28 | 2014-12-10 | 阿特拉斯·科普柯空气动力股份有限公司 | Screw compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012155959A1 (en) * | 2011-05-16 | 2012-11-22 | Aktiebolaget Skf | Rolling bearing having insulating material. |
| JP5689385B2 (en) * | 2011-08-12 | 2015-03-25 | 株式会社神戸製鋼所 | Compression device |
-
2015
- 2015-08-28 JP JP2015169402A patent/JP6476093B2/en active Active
-
2016
- 2016-07-29 WO PCT/JP2016/072287 patent/WO2017038334A1/en active Application Filing
- 2016-07-29 CN CN201680050344.0A patent/CN107923399B/en active Active
- 2016-08-04 TW TW105124785A patent/TWI621777B/en active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62209206A (en) * | 1986-02-26 | 1987-09-14 | エフ エフ ブイ トランスミツシヨン エイ ビ− | Frictional joint |
| JPH02145695U (en) * | 1989-05-12 | 1990-12-11 | ||
| JPH05133360A (en) * | 1991-11-13 | 1993-05-28 | Hitachi Ltd | Nonlubricated screw compressor |
| JPH06346876A (en) * | 1993-06-07 | 1994-12-20 | Hitachi Ltd | Hermetic screw compressor |
| EP1207306A2 (en) * | 2000-11-17 | 2002-05-22 | FINI ELETTROCOSTRUZIONI MECCANICHE S.p.A. | Screw compressor |
| CN1499080A (en) * | 2002-11-01 | 2004-05-26 | ��ʽ�������Ƹ��� | Screw compressor |
| JP2007064424A (en) * | 2005-09-01 | 2007-03-15 | Daihatsu Motor Co Ltd | Mounting device of power transmission ring |
| CN2886188Y (en) * | 2006-04-25 | 2007-04-04 | 豫新航空环控设备有限公司 | Detachable coupling |
| JP2008199801A (en) * | 2007-02-14 | 2008-08-28 | Hitachi Industrial Equipment Systems Co Ltd | Fan system |
| CN104204530A (en) * | 2012-02-28 | 2014-12-10 | 阿特拉斯·科普柯空气动力股份有限公司 | Screw compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201719019A (en) | 2017-06-01 |
| JP2017044194A (en) | 2017-03-02 |
| WO2017038334A1 (en) | 2017-03-09 |
| TWI621777B (en) | 2018-04-21 |
| CN107923399A (en) | 2018-04-17 |
| JP6476093B2 (en) | 2019-02-27 |
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Effective date of registration: 20220215 Address after: Tokyo, Japan Patentee after: Shengang Compressor Co.,Ltd. Address before: Kobe City, Hyogo Prefecture, Japan Patentee before: Kobe Steel, Ltd. |