WO2018151015A1 - Compresseur à spirale à rotation double - Google Patents

Compresseur à spirale à rotation double Download PDF

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Publication number
WO2018151015A1
WO2018151015A1 PCT/JP2018/004473 JP2018004473W WO2018151015A1 WO 2018151015 A1 WO2018151015 A1 WO 2018151015A1 JP 2018004473 W JP2018004473 W JP 2018004473W WO 2018151015 A1 WO2018151015 A1 WO 2018151015A1
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WO
WIPO (PCT)
Prior art keywords
drive
driven
support member
scroll
drive side
Prior art date
Application number
PCT/JP2018/004473
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English (en)
Japanese (ja)
Inventor
弘文 平田
隆英 伊藤
Original Assignee
三菱重工業株式会社
三菱重工サーマルシステムズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱重工業株式会社, 三菱重工サーマルシステムズ株式会社 filed Critical 三菱重工業株式会社
Publication of WO2018151015A1 publication Critical patent/WO2018151015A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents

Definitions

  • the present invention relates to a dual-rotation scroll compressor.
  • An object of the present invention is to provide a double-rotating scroll compressor capable of improving the processability of a driven scroll provided with walls on both sides of an end plate.
  • the dual-rotating scroll compressor includes a first drive side plate and a plurality of first drive side walls provided at predetermined angular intervals around the center of the first drive side plate.
  • a second drive side scroll portion having a first drive side scroll portion, a second drive side end plate, and a plurality of second drive side wall bodies provided at predetermined angular intervals around the center of the second drive side end plate;
  • a wall fixing portion for fixing the first drive side scroll portion and the second drive side scroll portion in a state where the first drive side wall body and the second drive side wall body face each other, from the drive portion
  • a drive side scroll member rotationally driven by the transmitted driving force, a driven side end plate positioned between the first drive side wall and the second drive side wall, and a center of one surface of the driven side end plate Provided at predetermined angular intervals around the plurality of A plurality of first driven side walls provided corresponding to each of the first driving side walls, and the plurality of second driving side walls provided at predetermined angular intervals around the
  • a support member configured to rotate with the driven scroll member, wherein a support member fixing portion to which the support member is fixed is provided on a tip surface of the driven side wall body. Said support Fixing surface of the wood fixing portion, in which are located the tooth crest and the same plane.
  • a support member fixing portion fixed to the support member is provided on the tip of the driven side wall of the driven side scroll member, and the fixing surface of the support member fixing portion is located on the same plane as the tip.
  • the support member is provided with a support member main body located on the axially outer side of the first drive side plate or the second drive side plate.
  • the support member main body may be provided with a protrusion projecting toward the support member fixing portion.
  • the support member includes a support member main body located on the axially outer side of the first drive side plate or the second drive side plate; and the support member
  • the adjustment member installed between the main body and the support fixing portion may be provided. According to this, since the support member main body and the adjustment member are provided as separate members, processing of the support member main body becomes easy. Further, the adjustment of the gap between the facing end plates of the scroll members and the tip end surface of the wall can be easily performed by adjusting the height of the adjusting member.
  • the support member may be fixed to the tip of each of the plurality of first driven side walls or the plurality of second driven side walls. Since the support members are fixed by the tooth tops provided on the driven side walls, the stability is improved.
  • a first support member which is fixed to the tooth top surface of the plurality of first driven side walls and rotates together with the driven scroll portion
  • a second support member may be provided, which is fixed to the tooth top surfaces of the plurality of second driven side walls and rotates with the driven scroll portion.
  • the first drive-side scroll portion is rotationally driven by the drive portion
  • the second drive-side scroll portion is fixed to the wall from the first drive-side scroll portion
  • a second support member main body which is rotationally driven by the driving force transmitted through the second support member, the second support member being located on the axially outer side of the second drive side plate, and the second support member main body;
  • a second support adjusting member installed between the support fixing portions.
  • the adjustment member can be provided on the second support member side, and the other first support member side can be a support member in which the projecting portion is formed. Adjustment of the is also possible.
  • a support member fixing portion fixed to the support member is provided on the tip of the driven side wall of the driven side scroll member, and the fixing surface of the support member fixing portion is located on the same plane as the tip.
  • FIG. 6 is a plan view showing a plurality of first driven side walls of the driven scroll member. It is a side view of the 1st support member seen from the motor side. It is the principal part enlarged view which expanded the principal part of the 2nd support member. It is the principal part enlarged view which expanded the principal part of the 2nd support member which concerns on a modification.
  • FIG. 1 is a longitudinal sectional view showing a double-turn scroll compressor 1 according to an embodiment of the present invention.
  • the double-rotating scroll compressor 1 can be used, for example, as a turbocharger that compresses combustion air (fluid) supplied to an internal combustion engine such as a vehicle engine.
  • the double-rotating scroll compressor 1 includes a housing 3, a motor 5 as a drive unit accommodated on one end of the housing 3, a drive shaft 6 for transmitting a driving force of the motor 5, and the other end of the housing 3.
  • Drive side scroll member 7 provided between drive side scroll member 7 and driven side scroll member 9, support member 4 supporting rotation of driven side scroll member 9, support member 4 and drive side scroll member 7
  • a pin ring mechanism 15 is provided as a drive transmission mechanism for transmitting a driving force from the member 7 to the driven scroll member 9.
  • the housing 3 has a substantially cylindrical shape.
  • the housing 3 includes a motor housing portion 3a for housing the motor 5, cooling fins 3b formed on the outer periphery of the motor housing portion 3a, a scroll housing portion 3c for housing the scroll members 7 and 9, and a scroll housing portion 3c. And an outlet 3d for discharging compressed air.
  • the housing 3 is also provided with an air inlet (not shown) for drawing air.
  • the scroll housing portion 3 c is divided by a division plane P perpendicular to the axial direction of each of the scroll members 7 and 9.
  • the divided surface P is located at a position where the circumferential surface 3f is separated from the side surface 3e of the scroll housing 3c in contact with the motor housing 3a.
  • the parting plane P is fastened by fixing it through the bolt 3g.
  • the motor 5 is driven by supplying power from a power supply source (not shown).
  • the rotation control of the motor 5 is performed by a command from a control unit (not shown).
  • the motor 5 has a stator 5a and a rotor 5b.
  • the stator 5a is fixed to the inner peripheral side of the motor housing 3a.
  • the rotor 5b rotates around the drive side rotation axis CL1.
  • the drive shaft 6 extending on the drive side rotation axis line CL1 is connected to the rotor 5b.
  • the drive shaft 6 is connected to the first drive side shaft portion 71 c of the drive side scroll member 7 via a bolt 6 a.
  • the drive shaft 6 is rotatably provided with respect to the housing 3 via the first drive bearing 11.
  • a rear end bearing 17 for rotatably supporting the drive shaft 6 with the housing 3 is provided.
  • the drive-side scroll member 7 includes a first drive-side scroll portion 71 located on the motor 5 side and a second drive-side scroll portion 72 located on the discharge port 3 d side.
  • the first drive side scroll portion 71 includes a first drive side end plate 71a and a plurality of first drive side walls 71b.
  • the first drive side end plate 71a is connected to a first drive side shaft 71c connected to the drive shaft 6, and extends in a direction orthogonal to the drive side rotational axis CL1.
  • the first drive side end plate 71a has a substantially disc shape in a plan view.
  • FIG. 2 is a top view showing the plurality of first drive side walls 71b of the first drive side scroll portion 71.
  • first drive side wall bodies 71b in a spiral shape are provided on the first drive side end plate 71a.
  • the first drive side wall 71b in the form of three strips is disposed at equal intervals around the drive side rotation axis CL1.
  • the wound end portions 71e of the first drive side walls 71b are not fixed to the other wall portions but are independent. That is, no wall portion is provided to connect and reinforce the respective winding end portions 71e.
  • the second drive side scroll portion 72 includes a second drive side end plate 72 a and a plurality of second drive side walls 72 b. Similar to the first drive side wall 71b (see FIG. 2) described above, three second drive side walls 72b are provided on the second drive side end plate 72a.
  • a second drive side shaft portion 72c extending in the direction of the drive side rotation axis CL1 is connected to the second drive side end plate 72a.
  • the second drive side shaft portion 72 c is provided rotatably with respect to the housing 3 via the second drive side bearing 14.
  • a seal member 14a is provided which divides the high pressure space and the low pressure space.
  • the second drive side shaft portion 72c is formed with a discharge port 72d along the drive side rotational axis CL1.
  • the first drive side scroll portion 71 and the second drive side scroll portion 72 are fixed in a state where tips (free ends) of the drive side walls 71 b and 72 b face each other.
  • the first drive-side scroll portion 71 and the second drive-side scroll portion 72 respectively have flange portions 73a and 73b formed to project outward in the radial direction. ) Is provided.
  • a plurality of flanges 73 are provided in the circumferential direction.
  • Each flange portion 73 is fastened by a pin 31.
  • Each of the drive scrolls 71 and 72 is fixed by the pin 31, so that movement in a direction away from each other in the axial direction (horizontal direction in FIG. 1) is permitted.
  • Each flange portion 73 and the pin 31 correspond to a wall fixing portion.
  • the driven scroll member 9 includes a driven end plate 91 extending in a direction perpendicular to the direction of the drive rotation axis CL1, and a plurality of first driven side walls 92a provided on both surfaces of the driven end plate 91 and a plurality of first driven side walls 92a. And a second driven side wall 92b (sometimes referred to as a driven side wall 92 unless otherwise specified).
  • a through hole 91a is formed at the center of the driven end plate 91, and air after compression is configured to flow to the discharge port 72d.
  • the driven scroll member 9 rotates about the driven rotation axis CL2.
  • the plurality of first driven side walls 92 a are disposed on the surface of the driven side end plate 91 facing the motor 5, and are engaged with the first driving side walls 71 b of the first drive side scroll portion 71.
  • the plurality of second driven side walls 92b are disposed on the surface of the driven side end plate 91 facing the discharge port 3d, and are engaged with the second driving side walls 72b of the second drive side scroll portion 72.
  • a compression space CS is formed between the driven side walls 92a and 92b and the driving side walls 71b and 72b corresponding to the driven side walls.
  • FIG. 3 is a plan view showing the plurality of first driven side walls 92 a of the driven scroll member 9.
  • the first driven side wall 92a is provided in three or three rows.
  • the first driven side walls 92a are arranged at equal intervals around the driven side rotation axis CL2.
  • An end portion 92e which is a circumferential outer end of each first driven side wall 92a is a free end.
  • a fixing portion 92c as a support member fixing portion to which the support member 4 is fixed is provided in the vicinity of the winding end portion 92e of each first driven side wall 92a, and the fixing portion 92b is used to fasten the support member 4
  • Bolt holes 92d are formed.
  • the second driven side wall 92b also has the same configuration, and thus the description thereof is omitted.
  • the support member 4 has a first support member 41 located on the motor 5 side and a second support member 42 located on the discharge port 3 d side. Each support member 4 is provided at each end of the driven scroll member 9 in the direction of the driven rotation axis CL2.
  • the first support member 41 is fixed via the fixing portion 92c of the first driven side wall 92a and the bolt 41a.
  • the bolt 41a is fastened to the bolt hole 92d of the fixing portion 92c as shown in FIG.
  • the second support member 42 is fixed via the fixing portion 92c of the second driven side wall 92b and the bolt 42a.
  • the first drive-side scroll portion 71 is sandwiched between the first support member 41 and the driven-side scroll member 9. Therefore, the first drive side end plate 71 a is disposed to face the first support member 41.
  • a first support member shaft 41 b is provided on the central axis side of the first support member 41.
  • the first support member shaft portion 41 b is fixed to the housing 3 via the first support member bearing 41 c.
  • a second support member shaft portion 42b is provided on the central axis side of the second support member 42.
  • the second support member shaft portion 42 b is fixed to the housing 3 via a second support member bearing 42 c.
  • the driven scroll member 9 is configured to rotate around the driven rotation axis CL2 via the support members 41 and 42.
  • FIG. 4 is a side view of the first support member 41 viewed from the motor side.
  • the first support member 41 has a radially extending portion 41d extending radially outward to the outer peripheral position of each first driven side wall 92b at each position where the tip of each first driven side wall 92a is fixed. There is.
  • the region between the radially extending portions 41d is shaped so as not to extend to the outer peripheral side of each first driven side wall 92b, thereby achieving weight reduction.
  • the radially extending portions 41 d are provided in three directions at equal angular intervals.
  • the first support member 41 and the first drive side scroll portion 71 are shown, and the driven side scroll member 9 is not shown.
  • the pin ring mechanism 15 has a ring member 15 a provided on the first support member 41 and a pin member 15 b provided on the first drive side end plate 71 a.
  • the pin ring mechanism 15 is used as a synchronous drive mechanism for transmitting the driving force from the drive side scroll member 7 to the driven side scroll member 9 so that the scroll members 7 and 9 rotate and orbit synchronously.
  • FIG. 5 is an enlarged view of an essential part of the second support member 42.
  • the configuration of the first support member 41 is the same as that of the second support member 42 in the following description, and therefore the description thereof is omitted, and the second support member 42 will be representatively described.
  • the second support member 42 is provided with a support member main body 42d located outside the second drive side end plate 72a in the direction of the driven side rotation axis CL2.
  • a protrusion 42 e is provided which protrudes toward the fixed portion 92 c of the driven scroll member 9.
  • the protrusion 42e extends to a fixing surface 92f as a tip end surface of the fixing portion 92c, and is fixed in contact with the fixing surface 92f.
  • the fixed surface 92 f of the driven scroll member 9 is located on the same plane as the tooth tip surface 92 g which is the tip end surface of the driven side wall 92 of the driven scroll member 9.
  • a bolt through hole 42f is formed in the protrusion 42e, and the bolt 42a is fastened. Thereby, the second support member 42 and the second driven sidewall 92b are fastened.
  • the air sucked from the suction port of the housing 3 is drawn from the outer peripheral side of the scroll members 7 and 9.
  • the compression space is taken into the formed compression chamber.
  • the compression chamber formed by the first drive side wall 71b and the first driven side wall 92a and the compression chamber formed by the second drive side wall 72b and the second driven side wall 92b are separately compressed. Ru.
  • the volume of each compression chamber decreases as it moves toward the center, and the air is compressed accordingly.
  • the air compressed by the first drive side wall 71b and the first driven side wall 92a passes through the through hole 91a formed in the driven side end plate 91, and the second drive side wall 72b and the second driven side wall 92b
  • the air that has been compressed is merged with the air that has been compressed, and the merged air passes through the discharge port 72 d and is discharged from the discharge port 3 d of the housing 3 to the outside.
  • the discharged compressed air is led to an internal combustion engine (not shown) and used as combustion air.
  • the tooth top surfaces 92g of the first driven side wall 92a and the second driven side wall 92b of the driven scroll member 9 are formed on the same plane, and the fixing surface 92f is also included in the same plane. Therefore, since the tooth top surface 92g becomes flat and the tooth heights become substantially the same, machining becomes easy. Processability can be improved without the need for complicated processing.
  • the protrusion 42 e is provided in the support member 4, the processing of the support member 4 is not required to have high accuracy as in the driven scroll member 9. Since the processing is also relatively easy, by providing the protrusion 42 e on the support member 4, the processability of the rotary scroll compressor 1 is improved. Therefore, a cost-saving configuration can be realized.
  • the present invention is not limited to the above-described embodiment, and can be implemented in various embodiments.
  • the support member 4 is described as being provided with the protrusion 42 e, but the present invention is not limited to this.
  • the adjustment member 4a may be provided between the support member 4A and the driven scroll member 9 instead of the protrusion 42e.
  • FIG. 6 is an enlarged view of an essential part of the second support member 42A of the dual rotation scroll compressor 1A according to the modification.
  • the present modification differs from the above-described embodiment in that the adjustment member 4Aa is provided instead of the protrusion 42e, and the other configuration is the same.
  • the same components as those in the embodiment described above are denoted by the same reference numerals, and the description thereof will be omitted.
  • the configuration of the first support member in the modification is the same as the configuration of the second support member 42A in the parts described below, so the description is omitted, and the second support member 42A is represented explain.
  • the second support member 42A is provided with a support member main body 42Ad located outside the second drive side end plate 72a in the direction of the driven side rotation axis line CL2, and between the support member main body 42Ad and the driven side scroll member 9
  • the adjustment member 4Aa is provided.
  • As the adjustment member 4Aa for example, a metal cylindrical collar is used.
  • bolt through holes 42Af and 4a1 through which the bolts 42Aa are inserted are respectively formed.
  • the second support member 42A and the drive-side scroll member 9 are fastened by the bolt 42Aa through the adjustment member (second support adjustment member) 4Aa.
  • the adjustment member 4Aa is provided as a separate member from the support member 4A, processing of the support member 4A is facilitated. Further, the adjustment of the gap between the facing end plates of the scroll members 7 and 9 and the tip end surface of the wall can be easily performed by adjusting the height of the adjusting member 4A. Since the drive-side scroll member 7, the driven-side scroll member 9, and the support member 4 have slight dimensional errors, it is possible to easily cope with the variation in the clearance caused by combining them by changing the adjustment member 4A.
  • the fixing portion 92c is provided at the winding end portion 92e of each driven side wall 92, and the support member 4 is fixed to the fixing portion 92c.
  • the invention is not limited thereto.
  • the fixing portion 92c may be provided at the winding end portion 92e of some of the driven side walls 92, and the support member 4 may be fixed.
  • the provision of the first support member 41 and the second support member 42 has been described, but the present invention is not limited to this. Either one of the support members may be provided.
  • each support member to the driven scroll member has been described as having the same configuration, but the present invention is not limited thereto.
  • a support member main body and an adjustment member 4Aa may be provided as a second support member, and a support member main body having a protrusion (a configuration similar to the reference numeral 42e in FIG. 5) may be provided as a first support member.
  • One adjustment member 4Aa is provided, and the other is a support member 4 having a projection formed thereon, so that it is possible to adjust the gap with the adjustment member 4Aa while suppressing the number of parts.
  • the first support member may be provided with the adjustment member 4Aa, and the second support member may be provided with a support member having a protrusion.
  • the present invention is not limited to this, as long as the fluid is compressed. It can be widely used, and can also be used, for example, as a refrigerant compressor used in an air conditioning machine.
  • the scroll compressor of the present invention may be applied to a pneumatic control system using the force of air as a brake system for a railway vehicle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

L'invention concerne un compresseur à spirale à rotation double (1) qui est équipé : d'un élément spirale côté entraînement (7) qui possède une partie rebord (73) sur laquelle sont fixées individuellement des parties spirale côté entraînement (71, 72) ; d'une plaque extrémité côté entraîné (91) qui est positionnée entre des parois côté entraînement (71b, 72b) ; d'un élément spirale côté entraîné (9) qui possède une pluralité de premières parois côté entraîné (92a) et une pluralité de secondes parois côté entraîné (92b) chacune agencée sur les deux faces de la plaque extrémité côté entraîné (91) ; et d'un élément support (4) fixé sur un sommet de dent (92g) des parois côté entraîné (92a, 92b), et exerçant une rotation avec l'élément spirale côté entraîné (9). Une partie fixation d'élément support (92c) sur laquelle est fixée l'élément support (4), est agencée sur un sommet de dent (92g) des parois côté entraîné, et une face fixation d'une partie fixation d'élément support (92c) est positionnée à l'intérieur du même plan que le sommet de dent (92g).
PCT/JP2018/004473 2017-02-17 2018-02-08 Compresseur à spirale à rotation double WO2018151015A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-028080 2017-02-17
JP2017028080A JP2018132034A (ja) 2017-02-17 2017-02-17 両回転スクロール型圧縮機

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Publication Number Publication Date
WO2018151015A1 true WO2018151015A1 (fr) 2018-08-23

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PCT/JP2018/004473 WO2018151015A1 (fr) 2017-02-17 2018-02-08 Compresseur à spirale à rotation double

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JP (1) JP2018132034A (fr)
WO (1) WO2018151015A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013227906A (ja) * 2012-04-25 2013-11-07 Anest Iwata Corp 両回転型スクロール膨張機及び該膨張機を備えた発電装置
JP2014088775A (ja) * 2012-10-29 2014-05-15 Scroll Giken:Kk スクロール流体機械

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013227906A (ja) * 2012-04-25 2013-11-07 Anest Iwata Corp 両回転型スクロール膨張機及び該膨張機を備えた発電装置
JP2014088775A (ja) * 2012-10-29 2014-05-15 Scroll Giken:Kk スクロール流体機械

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