WO2018151014A1 - Compresseur à spirale à rotation double - Google Patents

Compresseur à spirale à rotation double Download PDF

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Publication number
WO2018151014A1
WO2018151014A1 PCT/JP2018/004469 JP2018004469W WO2018151014A1 WO 2018151014 A1 WO2018151014 A1 WO 2018151014A1 JP 2018004469 W JP2018004469 W JP 2018004469W WO 2018151014 A1 WO2018151014 A1 WO 2018151014A1
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WO
WIPO (PCT)
Prior art keywords
drive
driven
side wall
scroll
wall body
Prior art date
Application number
PCT/JP2018/004469
Other languages
English (en)
Japanese (ja)
Inventor
弘文 平田
隆英 伊藤
拓馬 山下
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
Priority to US16/484,925 priority Critical patent/US20200003213A1/en
Priority to CN201880011978.4A priority patent/CN110300853B/zh
Priority to EP18755010.8A priority patent/EP3567252B1/fr
Publication of WO2018151014A1 publication Critical patent/WO2018151014A1/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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/02—Rotary-piston machines or engines 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
    • F01C1/0207—Rotary-piston machines or engines 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 both members having co-operating elements in spiral form
    • F01C1/0246—Details concerning the involute wraps or their base, e.g. geometry
    • F01C1/0253—Details concerning the base
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/02—Rotary-piston machines or engines 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
    • F01C1/0207—Rotary-piston machines or engines 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 both members having co-operating elements in spiral form
    • F01C1/023—Rotary-piston machines or engines 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 both members having co-operating elements in spiral form where both members are moving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
    • F01C17/06—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements
    • 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
    • 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
    • F04C18/0207—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 both members having co-operating elements in spiral form
    • F04C18/023—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 both members having co-operating elements in spiral form where both members are moving
    • 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
    • F04C18/0207—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 both members having co-operating elements in spiral form
    • F04C18/023—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 both members having co-operating elements in spiral form where both members are moving
    • F04C18/0238—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 both members having co-operating elements in spiral form where both members are moving with symmetrical double wraps
    • 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
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/50—Bearings

Definitions

  • the present invention relates to a double-rotating scroll compressor.
  • a double-rotation scroll compressor is known (see Patent Document 1).
  • This comprises a drive-side scroll and a driven-side scroll that rotates synchronously with the drive-side scroll, and the driven shaft that supports the rotation of the driven-side scroll is divided by a turning radius relative to the drive shaft that rotates the drive-side scroll.
  • the drive shaft and the driven shaft are rotated at the same angular velocity in the same direction with an offset of only.
  • the double-rotating scroll compressor may adopt a structure in which the tip of the spiral wall of the driving scroll or the driven scroll is supported by a support member.
  • a positioning pin for accurately positioning the phase around the rotation axis of the drive side scroll and the driven side scroll is provided in order to ensure the engagement of the spiral wall body.
  • the positioning pin is press-fitted into the spiral wall body, the wall body is deformed and the meshing between the wall bodies is impaired, and there is a possibility that the performance and durability are lowered.
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide a double-rotating scroll compressor that does not have a risk of reducing performance and durability when positioning a wall body with a positioning pin.
  • a double-rotating scroll compressor according to an aspect of the present invention includes a drive-side scroll member that is rotationally driven by a drive unit and has a spiral drive side wall disposed on a drive-side end plate, and a driven-side end plate.
  • a driven side scroll member that has a driven side wall body corresponding to the driving side wall body, and that forms a compression chamber by meshing the driven side wall body with the driving side wall body, and the driving side scroll
  • a synchronous drive mechanism for transmitting a driving force from the driving scroll member to the driven scroll member so that the member and the driven scroll member rotate in the same direction at the same angular velocity
  • the wall is connected to a distal end in the axial direction of at least one of the driven side wall bodies by a positioning pin for positioning a phase around the rotation axis.
  • Support member rotating is provided with the positioning pins, while being pressed against the support member, is fitted in a non-pressed state with respect to the wall.
  • the drive side wall disposed on the end plate of the drive side scroll member and the corresponding driven side wall of the driven side scroll member are engaged with each other.
  • the drive side scroll member is rotationally driven by the drive unit, and the driving force transmitted to the drive side scroll member is transmitted to the driven side scroll member via the synchronous drive mechanism.
  • the driven scroll member rotates and rotates with the same angular velocity in the same direction with respect to the drive scroll member.
  • a double-rotation scroll compressor in which both the drive-side scroll member and the driven-side scroll member rotate is provided.
  • the wall body and the support member are connected by a positioning pin. While the positioning pin is press-fitted into the support member, the positioning pin is fitted into the wall body in a non-press-fitted state.
  • the positioning pin can be firmly fixed to the support member, and the wall body is not deformed by the insertion of the positioning pin. Since shape deformation does not occur in the wall, there is no risk of performance or durability degradation.
  • insertion in a non-pressed state means insertion that does not cause deformation of the pin hole and deformation of the member by fitting the positioning pin, and includes, for example, a clearance fit.
  • the positioning pins are provided at least at two locations around the rotational axis.
  • the position around the rotation axis can be determined by providing two positioning pins.
  • the drive-side scroll member includes a first drive-side end plate and a first drive side wall, and is driven by the drive unit.
  • a drive-side scroll portion; a second drive-side scroll portion having a second drive-side end plate and a second drive side wall; and the driven-side scroll member is provided on one side of the driven-side end plate.
  • a first support member which is disposed with a side end plate interposed therebetween, is fixed to an axial front end side of the first driven side wall body, and rotates together with the first driven side wall body; and the second drive side end plate An axially distal end side of the second driven side wall disposed between A second support member that is fixed and rotates together with the second driven side wall body, wherein the positioning pin is between the first driven side wall body and the first support member, and the second driven side wall body. It is provided between the second support members.
  • the driven side scroll member includes the first driven side wall body and the second driven side wall body, a positioning pin is provided between the support member to which each is connected.
  • the positioning pin is press-fitted into the support member, it is inserted into the wall body in a non-fitted state, so there is no risk of performance or durability deterioration.
  • FIG. 1 is a longitudinal sectional view showing a double-rotating scroll compressor according to a first embodiment of the present invention. It is the fragmentary longitudinal cross-section which showed the surroundings of the positioning pin provided in the 1st driven side wall body. It is the fragmentary longitudinal cross-section which showed the modification of FIG. It is the fragmentary longitudinal cross-section which showed the other modification of FIG. It is the longitudinal cross-sectional view which showed the double-rotation scroll type compressor which concerns on 2nd Embodiment.
  • FIG. 1 shows a double-rotating scroll compressor (scroll compressor) 1 according to the first embodiment.
  • the double-rotating scroll compressor 1 can be used as a supercharger 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 (drive unit) 5 housed on one end side of the housing 3, a drive-side scroll member 70 and a driven-side scroll member housed on the other end side of the housing 3. 90.
  • the housing 3 has a substantially cylindrical shape, and includes a motor accommodating portion 3a for accommodating the motor 5 and a scroll accommodating portion 3b for accommodating the scroll members 70 and 90.
  • the cooling fin 3c for cooling the motor 5 is provided in the outer periphery of the motor accommodating part 3a.
  • a discharge port 3d for discharging compressed air (working fluid) is formed at the end of the scroll accommodating portion 3b.
  • the housing 3 is provided with an air suction port for sucking air (working fluid).
  • the motor 5 is driven by power supplied 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 stator 5 a of the motor 5 is fixed to the inner peripheral side of the housing 3.
  • the rotor 5b of the motor 5 rotates around the drive side rotation axis CL1.
  • a drive shaft 6 extending on the drive side rotation axis CL1 is connected to the rotor 5b.
  • the drive shaft 6 is connected to the first drive side shaft portion 7 c of the drive side scroll member 70.
  • the drive-side scroll member 70 includes a first drive-side scroll portion 71 on the motor 5 side and a second drive-side scroll portion 72 on the discharge port 3d side.
  • the first drive side scroll portion 71 includes a first drive side end plate 71a and a first drive side wall 71b.
  • the first drive side end plate 71a is connected to a first drive side shaft portion 7c connected to the drive shaft 6, and extends in a direction orthogonal to the drive side rotation axis CL1.
  • the first drive side shaft portion 7c is rotatably provided to the housing 3 via a first drive side bearing 11 that is a ball bearing.
  • the first drive side end plate 71a has a substantially disc shape when viewed in plan.
  • a plurality of first driving side wall bodies 71b having a spiral shape are provided on the first driving side end plate 71a.
  • the first drive side walls 71b are arranged at equal intervals around the drive side rotation axis CL1.
  • the second drive side scroll part 72 includes a second drive side end plate 72a and a second drive side wall 72b. Similar to the first drive side wall 71b described above, a plurality of second drive side walls 72b are formed in a spiral shape.
  • a cylindrical 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 72c is provided so as to be rotatable with respect to the housing 3 via the second drive side bearing 14 which is a ball bearing.
  • a discharge port 72d is formed in the second drive side end plate 72a along the drive side rotation axis CL1.
  • two seal members 16 are provided on the distal end side (left side in FIG. 1) of the second drive side shaft portion 72c with respect to the second drive side bearing 14. ing.
  • the two seal members 16 and the second drive side bearing 14 are disposed with a predetermined interval in the direction of the drive side rotation axis CL1.
  • a lubricant for example, a grease which is a semi-solid lubricant is enclosed.
  • the number of seal members 16 may be one. In this case, the lubricant is sealed between the seal member 16 and the second drive side bearing 14.
  • the first drive side scroll part 71 and the second drive side scroll part 72 are fixed in a state where the tips (free ends) of the wall bodies 71b and 72b face each other.
  • the first drive-side scroll portion 71 and the second drive-side scroll portion 72 are fixed to wall fixing bolts fastened to flange portions 73 provided at a plurality of locations in the circumferential direction so as to protrude outward in the radial direction.
  • Wall body fixing part) 31 31.
  • the driven-side scroll member 90 has a driven-side end plate 90a positioned substantially at the center in the axial direction (horizontal direction in the figure).
  • a discharge through-hole (through-hole) 90h is formed in the center of the driven side end plate 90a so that the compressed air flows to the discharge port 72d.
  • a first driven side wall 91b is provided on one side of the driven side end plate 90a, and a second driven side wall 92b is provided on the other side of the driven side end plate 90a.
  • the first driven side wall body 91b installed on the motor 5 side from the driven side end plate 90a is meshed with the first driving side wall body 71b of the first driving side scroll portion 71, and from the driven side end plate 90a to the discharge port 3d side.
  • the installed second driven side wall 92 b is engaged with the second drive side wall 72 b of the second drive side scroll portion 72.
  • a first support member 33 and a second support member 35 are provided at both ends in the axial direction (horizontal direction in the drawing) of the driven scroll member 90.
  • the first support member 33 is disposed on the motor 5 side, and the second support member 35 is disposed on the discharge port 3d side.
  • the first support member 33 is fixed to the outer peripheral end (free end) of the first driven side wall 91b by the first support fixing bolt 34, and the second support member 35 is the second driven side wall 92b.
  • the second support fixing bolt 36 fixes the front end (free end) on the outer peripheral side of the first support fixing bolt 36.
  • Positioning about the driven side rotation axis CL2 between the first support member 33 and the first driven side wall 91b is performed by a positioning pin 40 provided at an angular position different from the first support fixing bolt 34. Specifically, as shown in FIG. 2, one end of the positioning pin 40 is inserted into a pin insertion hole 91 b 1 formed at the tip of the first driven side wall 91 b, and the positioning pin 40 is inserted into the first support member 33. The other end is press-fitted. The positioning pin 40 is fitted into the pin insertion hole 91b1 of the first driven side wall 91b in a non-pressed state.
  • the positioning pins 40 are provided at two locations around the driven side rotation axis CL2. However, three or more positioning pins 40 may be provided. In this case, the third or more positioning pins 40 do not actually need to be positioned, and are so-called dummy pins. Similarly, positioning pins are provided between the second support member 35 and the second driven side wall 92b.
  • a shaft portion 33 a is provided on the center shaft side of the first support member 33, and the shaft portion 33 a is fixed to the housing 3 via a first support member bearing 37.
  • a shaft portion 35 a is provided on the center shaft side of the second support member 35, and the shaft portion 35 a is fixed to the housing 3 via a second support member bearing 38.
  • a pin ring mechanism (synchronous drive mechanism) 15 is provided between the first support member 33 and the first drive side end plate 71a. That is, a rolling bearing (ring) is provided on the first drive side end plate 71a, and a pin member 15b is provided on the first support member 33.
  • a driving force is transmitted from the driving side scroll member 70 to the driven side scroll member 90 by the pin ring mechanism 15, and both scroll members 70, 90 are rotated in the same direction at the same angular velocity.
  • the double-rotating scroll compressor 1 having the above-described configuration operates as follows.
  • the drive shaft 6 is rotated around the drive-side rotation axis CL1 by the motor 5
  • the first drive-side shaft portion 7c connected to the drive shaft 6 also rotates, thereby causing the drive-side scroll member 70 to move to the drive-side rotation axis CL1.
  • the driving scroll member 70 rotates, the driving force is transmitted from the support members 33 and 35 to the driven scroll member 90 via the pin ring mechanism 15, and the driven scroll member 90 rotates about the driven rotation axis CL2. To do.
  • both scroll members 70 and 90 rotate in the same direction at the same angular velocity.
  • the air sucked from the suction port of the housing 3 is sucked from the outer peripheral sides of the scroll members 70 and 90 and is formed by the scroll members 70 and 90.
  • the compression chamber formed by the first drive side wall 71b and the first driven side wall 91b and the compression chamber formed by the second drive side wall 72b and the second driven side wall 92b are separately compressed. The Each compression chamber decreases in volume as it moves toward the center, and air is compressed accordingly.
  • the air compressed by the first drive side wall 71b and the first driven side wall 91b passes through the discharge through hole 90h formed in the driven side end plate 90a, and passes through the second drive side wall 72b and the second driven side wall 92b. And the compressed air passes through the discharge port 72d and is discharged from the discharge port 3d of the housing 3 to the outside.
  • the discharged compressed air is guided to an internal combustion engine (not shown) and used as combustion air.
  • the positioning pin 40 for positioning the driven side wall bodies 91b and 92b and the support members 33 and 35 is press-fitted into the support members 33 and 35, it is not press-fitted into the driven side wall bodies 91b and 92b. It was decided to insert in the state. Thereby, the positioning pin 40 can be firmly fixed to the support members 33 and 35, and the driven side wall bodies 91b and 92b are not deformed by the insertion of the positioning pin 40. In this way, since the driven side wall bodies 91b and 92b are not deformed, there is no possibility that the performance and durability of the double-rotation scroll compressor 1 will be lowered.
  • a cylindrical collar 33b that is a separate body may be provided on the protruding portion of the first support member 33, and the positioning pin 40 may be press-fitted into the collar 33b. Since the collar 33b is provided as a separate member from the first support member 33, the processing of the first support member 33 is facilitated. Moreover, the space
  • the positioning pin 40 may penetrate the collar 33 b and press-fit into the first support member 33.
  • the positioning pin 40 may be press-fitted into the through hole of the collar 33b or may be a clearance fit.
  • a similar collar can be provided on the second support member 35.
  • FIG. 5 shows a double-rotating scroll compressor 1A having a single tooth.
  • the double-rotating scroll compressor 1A includes support members 20 and 22 that support the wall bodies 7b and 9b of the drive-side scroll member 7 and the driven-side scroll member 9, respectively.
  • FIG. 5 does not show the periphery of the motor 5 shown in FIG. 1, this embodiment also has the same structure.
  • the drive side support member 20 is fixed to the front end (free end) of the drive side wall 7 b of the drive side scroll member 7 via the positioning pin 41.
  • the positioning pin 41 is inserted into the drive side wall body 7b in a non-press-fit state, while being pressed into the drive side support member 20.
  • the driven side scroll member 9 is sandwiched between the driving side support member 20 and the driving side scroll member 7. Therefore, the driven side end plate 9 a is disposed so as to face the driving side support member 20.
  • the drive side support member 20 has a shaft portion 20a on the center side.
  • the shaft portion 20a is rotatably attached to the housing 3 via a drive-side support member bearing 26 that is a ball bearing.
  • the drive-side support member 20 rotates about the drive-side rotation axis CL ⁇ b> 1 like the drive-side scroll member 7.
  • a pin ring mechanism 15 ' is provided between the drive side support member 20 and the driven side end plate 9a. That is, the ring member 15a is provided on the driven side end plate 9a, and the pin member 15b is provided on the driving side support member 20.
  • the driven side support member 22 is fixed to the distal end (free end) of the driven side wall body 9 b of the driven side scroll member 9 via a positioning pin 41.
  • the positioning pin 41 is press-fitted into the driven side support member 22 while being fitted into the driven side wall body 9b in a non-press-fitted state.
  • the driving scroll member 7 is sandwiched between the driven support member 22 and the driven scroll member 9. Therefore, the driving side end plate 7 a is disposed so as to face the driven side support member 22.
  • the driven support member 22 has a shaft portion 22a on the center side.
  • the shaft portion 22a is rotatably attached to the housing 3 via a driven-side support member bearing 28 that is a ball bearing.
  • the driven side support member 22 rotates around the driven side rotation axis CL ⁇ b> 2 similarly to the driven side scroll member 9.
  • the positioning pins 41 for positioning the walls 7b and 9b and the support members 20 and 22 are press-fitted into the support members 20 and 22, they are not press-fitted into the walls 7b and 9b. It was decided to insert in the state. As a result, the positioning pins 41 can be firmly fixed to the support members 20 and 22, and the shape of the walls 7b and 9b due to the insertion of the positioning pins 41 is not affected. Thus, since shape deformation does not arise in each wall 7b, 9b, there is no possibility that the performance and durability of the double-rotating scroll compressor 1A will be lowered.
  • the double-rotating scroll type compressor is used as the supercharger.
  • the present invention is not limited to this, and can be widely used as long as it compresses fluid.
  • it can also be used as a refrigerant compressor used in an air conditioning machine.
  • the scroll compressor of the present invention can also be applied to an air control device that uses 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)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Rotary Pumps (AREA)

Abstract

Le compresseur à spirale à rotation double de l'invention est équipé : d'un élément spirale côté entraînement qui est entraîné en rotation par une partie entraînement, et qui possède une paroi côté entraînement de forme hélicoïdale disposée sur une plaque extrémité côté entraînement ; et d'un élément spirale côté entraîné (90) qui est disposé sur une plaque extrémité côté entraîné (90a), qui possède une paroi côté entraîné correspondant à la paroi côté entraînement, et qui forme une chambre de compression par emboîtement de la paroi côté entraîné vis-à-vis de la paroi côté entraînement. Un premier élément support (33) exerçant une rotation avec une première paroi côté entraîné (91b) par connexion avec au moyen d'une goupille de positionnement (40) positionnant une phase autour d'une ligne axiale de rotation, vis-à-vis d'une extrémité avant dans la direction axiale de la première paroi côté entraîné (91b), est agencé, et la goupille de positionnement (40) est ajustée de force sur ce premier élément support (33), et ajustée dans un état sans ajustement de force sur la première paroi côté entraîné (91b).
PCT/JP2018/004469 2017-02-17 2018-02-08 Compresseur à spirale à rotation double WO2018151014A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US16/484,925 US20200003213A1 (en) 2017-02-17 2018-02-08 Co-rotating scroll compressor
CN201880011978.4A CN110300853B (zh) 2017-02-17 2018-02-08 双旋转涡旋型压缩机
EP18755010.8A EP3567252B1 (fr) 2017-02-17 2018-02-08 Compresseur à spirale à rotation double

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JP7017240B2 (ja) * 2018-10-09 2022-02-08 有限会社スクロール技研 スクロール型圧縮機

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JP5443132B2 (ja) * 2009-11-05 2014-03-19 有限会社スクロール技研 スクロール流体機械

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JPS5443132B2 (fr) 1976-11-10 1979-12-18
JPS55101789A (en) * 1979-01-31 1980-08-04 Hitachi Ltd Scroll fluid machine
JPS5859391A (ja) * 1981-10-02 1983-04-08 Hitachi Ltd オクロ−ル圧縮機用スクロ−ルの製作法
JP2010071226A (ja) * 2008-09-19 2010-04-02 Scroll Giken:Kk スクロール流体機械
JP5443132B2 (ja) * 2009-11-05 2014-03-19 有限会社スクロール技研 スクロール流体機械
JP2013227905A (ja) * 2012-04-25 2013-11-07 Anest Iwata Corp スクロール膨張機

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JP6707478B2 (ja) 2020-06-10
US20200003213A1 (en) 2020-01-02
CN110300853A (zh) 2019-10-01
JP2018132035A (ja) 2018-08-23
CN110300853B (zh) 2020-10-27
EP3567252A1 (fr) 2019-11-13
EP3567252A4 (fr) 2019-12-04
EP3567252B1 (fr) 2020-06-24

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