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WO2018150977A1 - Compresseur à spirale à rotation double, et procédé d'assemblage de celui-ci - Google Patents

Compresseur à spirale à rotation double, et procédé d'assemblage de celui-ci Download PDF

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Publication number
WO2018150977A1
WO2018150977A1 PCT/JP2018/004225 JP2018004225W WO2018150977A1 WO 2018150977 A1 WO2018150977 A1 WO 2018150977A1 JP 2018004225 W JP2018004225 W JP 2018004225W WO 2018150977 A1 WO2018150977 A1 WO 2018150977A1
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WO
WIPO (PCT)
Prior art keywords
driven
drive
side wall
scroll member
drive side
Prior art date
Application number
PCT/JP2018/004225
Other languages
English (en)
Japanese (ja)
Inventor
弘文 平田
隆英 伊藤
竹内　真実
拓馬 山下
恵太 北口
Original Assignee
三菱重工サーマルシステムズ株式会社
三菱重工業株式会社
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 三菱重工サーマルシステムズ株式会社, 三菱重工業株式会社 filed Critical 三菱重工サーマルシステムズ株式会社
Priority to US16/485,601 priority Critical patent/US20190376513A1/en
Priority to CN201880012029.8A priority patent/CN110337543B/zh
Priority to EP18754702.1A priority patent/EP3569862A4/fr
Publication of WO2018150977A1 publication Critical patent/WO2018150977A1/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
    • 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
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/007—Sealings for working fluid between radially and axially moving parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
    • F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F04C29/0057—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions for eccentric movement
    • 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
    • F01C17/066—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements with an intermediate piece sliding along perpendicular axes, e.g. Oldham coupling
    • 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
    • F04C2240/20—Rotors
    • 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

Definitions

  • the present invention relates to a dual-rotating scroll compressor and a method of assembling the same.
  • a twin-rotating scroll compressor has been known conventionally (see Patent Document 1).
  • This includes a drive-side scroll and a driven-side scroll that rotates in synchronization with the drive-side scroll, and the driven shaft that supports the rotation of the driven-side scroll with respect 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.
  • the dual rotation scroll compressor may adopt a structure in which the drive side scroll or the driven side scroll is divided in the axial direction, and the tip of the spiral wall of the drive side scroll or the driven side scroll is a support member A structure supported by may be employed.
  • a structure supported by may be employed.
  • the structure for performing this phase positioning is provided at at least two places around the rotation axis, the center of gravity shifts from the rotation axis depending on the way of providing the positioning structure, which causes noise and vibration.
  • the present invention has been made in view of such circumstances, and provides a double-turning scroll compressor capable of suppressing as much as possible the generation of noise and vibration due to the shift of the center of gravity of the scroll member and a method of assembling the same.
  • the purpose is to
  • the dual-rotating scroll compressor of the present invention and the assembling method thereof employ the following means.
  • the dual-rotating scroll compressor includes a drive-side scroll member that has a spiral drive side wall body that is rotationally driven by a drive unit and that is disposed on a drive-side end plate;
  • a driven side scroll member having a driven side wall corresponding to the drive side wall, the driven side wall being engaged with the drive side wall to form a compression chamber, and the drive side scroll member
  • a synchronous drive mechanism for transmitting a driving force from the drive-side scroll member to the driven-side scroll member so that the driven-side scroll member rotates at the same angular velocity in the same direction and in the same direction;
  • positioning pins for positioning the phase around the rotation axis of the drive-side scroll member are provided at two positions around the rotation axis, and And one or more dummy pins provided at equal angular intervals around the rotation axis, and / or at the tip of the driven side wall in the axial direction, around the rotation axis of the driven scroll member.
  • the drive side wall disposed on the end plate of the drive side scroll member is engaged with the corresponding driven side wall of the driven side scroll member.
  • 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 performs rotational motion at the same angular velocity in the same direction with respect to the drive scroll member.
  • a dual-rotation scroll compressor is provided in which both the drive-side scroll member and the driven-side scroll member rotate.
  • two positioning pins positioning of the phase around the rotation axis is performed.
  • the center of gravity can be determined around the rotation axis by providing the dummy pins so as to be equiangularly spaced around the rotation axis together with the positioning pin. Thereby, low noise and low vibration can be realized.
  • the dual-rotating scroll compressor includes a drive-side scroll member that has a spiral drive side wall body that is rotationally driven by a drive unit and that is disposed on a drive-side end plate; A driven side scroll member having a driven side wall corresponding to the drive side wall, the driven side wall being engaged with the drive side wall to form a compression chamber, and the drive side scroll member A synchronous drive mechanism for transmitting a driving force from the drive-side scroll member to the driven-side scroll member so that the driven-side scroll member rotates at the same angular velocity in the same direction and in the same direction;
  • the assembly reference hole into which the assembly pin used at the time of assembly is inserted to position the phase around the rotation axis of the drive side scroll member is inserted at the tip of the Two or more dummy holes are provided at two locations, and at least one dummy hole provided at equal angular intervals around the rotation axis along with the assembly reference hole, and / or at the tip of the driven sidewall in the axial direction
  • the center of gravity can be determined around the rotation axis by providing dummy holes at equal angular intervals around the rotation axis together with the assembly reference hole. Thereby, low noise and low vibration can be realized.
  • the dual-rotating scroll compressor includes a drive-side scroll member that has a spiral drive side wall body that is rotationally driven by a drive unit and that is disposed on a drive-side end plate; A driven side scroll member having a driven side wall corresponding to the drive side wall, the driven side wall being engaged with the drive side wall to form a compression chamber, and the drive side scroll member A synchronous drive mechanism for transmitting a driving force from the drive-side scroll member to the driven-side scroll member so that the driven-side scroll member rotates at the same angular velocity in the same direction and in the same direction;
  • the positioning pin for positioning the phase around the rotation axis of the drive side scroll member is made of the same material as the drive side wall at the tip of the
  • a positioning pin for positioning the phase around the rotation axis of the driven scroll member is made of the same material as that of the driven sidewall, and / or at the tip of the driven sidewall in the axial direction.
  • the locating pin is made of the same material as the wall, the center of gravity can be defined around the rotation axis. Thereby, low noise and low vibration can be realized.
  • the dual-rotating scroll compressor includes a drive-side scroll member that has a spiral drive side wall body that is rotationally driven by a drive unit and that is disposed on a drive-side end plate; A driven side scroll member having a driven side wall corresponding to the drive side wall, the driven side wall being engaged with the drive side wall to form a compression chamber, and the drive side scroll member A synchronous drive mechanism for transmitting a driving force from the drive-side scroll member to the driven-side scroll member so that the driven-side scroll member rotates at the same angular velocity in the same direction and in the same direction;
  • an assembly reference hole into which an assembly pin used at the time of assembly for positioning the phase around the rotation axis of the drive side scroll member is inserted Two points are provided symmetrically with respect to the axis and / or assembled on the surface of the driven end plate opposite to the driven side wall to position the phase around the rotation axis of the driven scroll member. Two assembly reference holes are provided symmetrically with
  • the drive side scroll member has a first drive side end plate and a first drive side wall, and the first drive side scroll member is driven by the drive unit.
  • a drive side scroll portion, and a second drive side scroll portion having a second drive side end plate and a second drive side wall body, wherein a tip end of the first drive side wall body in the axial direction and the second drive side wall body The positioning of the phase about the rotation axis of the drive side scroll member is performed between the tip in the axial direction of the drive scroll member.
  • Positioning pins and dummy pins are provided at the tip of the drive side wall.
  • the assembly reference hole and the dummy hole are provided at the tip of the drive side wall body.
  • the driven-side scroll member is provided on one side surface of the driven-side end plate, and a first driven-side wall that engages with the first drive side wall.
  • a second driven side wall body provided on the other side surface of the driven side end plate and meshed with the second drive side wall body, and disposed with the first drive side end plate interposed therebetween;
  • the shaft of the second driven side wall is disposed between the first support member fixed to the tip end side in the axial direction of the side wall and rotating with the first driven side wall, and the second drive side end plate
  • a second support member fixed to the front end side of the second direction and rotated with the second driven side wall, between the first driven side wall and the first support member, and the second driven side wall
  • Positioning pins and dummy pins are provided between the driven side wall and the support member.
  • an assembly reference hole or a dummy hole is provided between the driven side wall and the support member.
  • a method of assembling a dual-rotating scroll compressor according to the above-mentioned method of assembling a dual-rotating scroll compressor, the step of inserting and positioning the assembly pin in the assembly reference hole. And assembling the drive-side scroll member and / or the driven-side scroll member in a positioned state, and removing the assembly pin.
  • FIG. 1 shows a dual-rotation scroll compressor 1 according to a first embodiment.
  • 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 (drive unit) 5 housed on one end side of the housing 3, and a drive-side scroll member 70 and a driven-side scroll member housed on the other end side of the housing 3. It has 90 and.
  • the housing 3 has a substantially cylindrical shape, and includes a motor accommodating portion 3 a that accommodates the motor 5 and a scroll accommodating portion 3 b that accommodates the scroll members 70 and 90.
  • Cooling fins 3c for cooling the motor 5 are provided on the outer periphery of the motor housing 3a.
  • a discharge port 3d for discharging compressed air (working fluid) is formed at an end portion of the scroll housing portion 3b.
  • the housing 3 is provided with an air inlet for drawing air (working fluid).
  • 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 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.
  • 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 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 3 d 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 7c connected to the drive shaft 6, and extends in a direction orthogonal to the drive side rotational axis CL1.
  • the first drive side shaft portion 7 c is provided rotatably with respect to the housing 3 via a first drive side bearing 11 formed as a ball bearing.
  • the first drive side end plate 71a has a substantially disc shape in a plan view.
  • a plurality of spiral first drive side walls 71b are provided on the first drive side end plate 71a.
  • the first drive side wall bodies 71b are arranged at equal intervals around the drive side rotation axis line CL1.
  • the second drive side scroll portion 72 includes a second drive side end plate 72a and a second drive side wall 72b. Similar to the first drive side wall 71 b described above, a plurality of second drive side walls 72 b are provided 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 rotatably with respect to the housing 3 via a second drive side bearing 14 formed as a ball bearing.
  • a discharge port 72d is formed in the second drive side end plate 72a along the drive side rotational axis CL1.
  • Two sealing members 16 are provided between the second drive side shaft portion 72c and the housing 3 on the tip end side (left side in FIG. 1) of the second drive side shaft portion 72c than the second drive side bearing 14 ing.
  • the two seal members 16 and the second drive-side bearing 14 are disposed at predetermined intervals in the direction of the drive-side rotation axis CL1.
  • a lubricant for example, a grease which is a semisolid lubricant, is enclosed between the two seal members 16.
  • the number of sealing members 16 may be one. In this case, the lubricant is enclosed between the seal member 16 and the second drive side bearing 14.
  • the first drive side scroll portion 71 and the second drive side scroll portion 72 are fixed in a state in which the tips (free ends) of the wall bodies 71 b and 72 b face each other.
  • the fixing of the first drive side scroll portion 71 and the second drive side scroll portion 72 is achieved by fixing a wall fixing bolt (not shown) to a flange portion 73 provided at a plurality of locations in the circumferential direction so as to protrude radially outward.
  • the wall fixing portion 31 is performed.
  • the top view of the 1st drive side scroll part 71 is shown by FIG.
  • the second drive side scroll unit 71 also has a similar shape.
  • a bolt hole 31a into which the wall fixing bolt 31 is inserted is provided at the winding end of the wall 71b.
  • wall fixing bolts 31 are provided at three locations.
  • Positioning pin holes 40a into which the positioning pins 40 are fitted are provided on the side of two of the three bolt holes 31a.
  • a dummy pin hole 41a into which the dummy pin 41 is inserted is provided on the side of the remaining one bolt hole 31a.
  • the dummy pin 41 is made of the same material as the positioning pin 40, but is loosely fitted so as not to position the dummy pin hole 41a. Two positioning pins 40 and one dummy pin 41 are provided at equal intervals around the drive side rotation axis CL1.
  • a driven end plate 90a is located substantially at the center in the axial direction (horizontal direction in the drawing).
  • a discharge through hole (through hole) 90h is formed at the center of the driven end plate 90a, and compressed air flows to the discharge port 72d.
  • the first driven side wall body 91b is provided on one side surface of the driven side end plate 90a, and the second driven side wall body 92b is provided on the other side surface 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 engaged with the first drive side wall body 71b of the first drive side scroll portion 71, and on the discharge port 3d side from the driven side end plate 90a.
  • the installed second driven side wall 92 b is engaged with the second driving side wall 72 b of the second driving scroll portion 72.
  • a first support member 33 and a second support member 35 are provided at both ends of the driven scroll member 90 in the axial direction (horizontal direction in the drawing).
  • the first support member 33 is disposed on the motor 5 side, and the second support member 35 is disposed on the discharge port 3 d side.
  • the first support member 33 is fixed to a tip (free end) on the outer peripheral side of the first driven side wall 91 b by a first support fixing bolt 34, and the second support member 35 is a second driven side wall 92 b. Is fixed by a second support fixing bolt 36 to a tip (free end) on the outer peripheral side of
  • a shaft portion 33 a is provided on the central axis 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 central axis 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.
  • the driven scroll member 90 is configured to rotate around the driven rotation axis CL2 via the support members 33 and 35.
  • 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, the rolling bearing (ring) is provided on the first drive side end plate 71 a, and the pin member 15 b is provided on the first support member 33. While the driving force is transmitted from the drive-side scroll member 70 to the driven-side scroll member 90 by the pin ring mechanism 15, both scroll members 70, 90 rotate at the same angular velocity in the same direction.
  • FIG. 3 shows a side view taken along arrow III-III in FIG.
  • first support fixing bolts 34 are provided at three locations.
  • Positioning pin holes 42 a into which the positioning pins 42 are fitted are provided on the side of the two first support fixing bolts 34 among these.
  • a dummy pin hole 43 a into which the dummy pin 43 is inserted is provided on the side of the remaining one first support fixing bolt 34.
  • the dummy pin 43 is made of the same material as the positioning pin 42, it is loosely fitted so as not to position the dummy pin hole 43a.
  • Two positioning pins 42 and one dummy pin 43 are provided at equal intervals around the driven rotation axis CL2.
  • the second support member 35 has a similar configuration.
  • the twin-rotating scroll compressor 1 configured as described above operates as follows.
  • the drive shaft 6 is rotated about the drive-side rotation axis CL1 by the motor 5
  • the first drive-side shaft 7c connected to the drive shaft 6 is also rotated, whereby the drive-side scroll member 70 is driven along the drive-side rotation axis CL1.
  • the drive side scroll member 70 rotates, the drive force is transmitted from the support members 33 and 35 to the driven side scroll member 90 through the pin ring mechanism 15, and the driven side scroll member 90 rotates around the driven side rotation axis CL2.
  • the pin member 15b of the pin ring mechanism 15 moves in contact with the inner circumferential surface of the circular hole, both scroll members 70, 90 rotate at the same angular velocity in the same direction.
  • both scroll members 70, 90 rotate, the air sucked from the suction port of housing 3 is drawn from the outer peripheral side of both scroll members 70, 90, and the compression chamber formed by both scroll members 70, 90 Incorporated into
  • 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. 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 91b passes through the discharge through hole 90h formed in the driven side end plate 90a, and the second drive side wall 72b and the second driven side wall 92b.
  • the air after merging 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 led to an internal combustion engine (not shown) and used as combustion air.
  • the following effects are achieved.
  • FIG. 2 by using two positioning pins 40 for the drive-side scroll member 70, positioning of the phase around the drive-side rotation axis CL1 is performed. Further, by providing the dummy pins 41 so as to form equiangular intervals around the drive side rotation axis CL1 together with the positioning pin 40, the center of gravity is determined around the drive side rotation axis CL1.
  • FIG. 3 by using two positioning pins 42 for the driven scroll member 90, positioning of the phase about the driven rotation axis CL2 is performed.
  • the center of gravity is determined around the driven side rotation axis CL2.
  • assembly reference holes 44 a are respectively provided on the sides of the three wall fixing bolts 31. These three assembly reference holes 44a are provided at equal angular intervals around the drive side rotation axis CL1.
  • the assembly reference hole 44 a is a hole used to insert an assembly pin when assembling the first drive side scroll portion 71 and the second drive side scroll portion 72. Since the positioning around the drive side rotation axis CL1 is determined by the two assembly pins, one of the three assembly reference holes 44a becomes a dummy hole not used at the time of assembly. However, the three assembly reference holes 44a have the same shape.
  • the assembly pins are inserted into the two assembly reference holes 44a, and positioning is performed by combining the two scroll portions 71 and 72. . And both scroll parts 71 and 72 are fixed using wall fixing bolt 31. Thereafter, the assembly pins are removed to complete the assembly of the scrolls 71 and 72.
  • assembly reference holes 45a are provided on the sides of the three first support fixing bolts 34, respectively. These three assembly reference holes 45a are provided at equal angular intervals around the driven side rotation axis CL2.
  • the assembly reference hole 45 a is a hole used to insert an assembly pin when assembling the first support member 33 and the driven scroll member 90. Since positioning about the driven side rotational axis CL2 is determined by two assembly pins, one of the three assembly reference holes 45a becomes a dummy hole not used at the time of assembly. However, the three assembly reference holes 45a have the same shape.
  • the second support member 35 has a similar configuration.
  • the driven scroll member 90 and the first support member 33 When assembling the driven scroll member 90 and the first support member 33, first, insert the assembly pins into the two assembly reference holes 45a, and combine the driven scroll member 90 and the first support member 33 for positioning. Do. Then, the driven scroll member 90 and the first support member 33 are fixed using the first support fixing bolt 34. Thereafter, the assembly pin is removed, and the assembly of the driven scroll member 90 and the first support member 33 is completed. The assembly of the driven scroll member 90 and the second support member 35 is similarly performed.
  • the following effects are achieved.
  • positioning of the phase around the rotation axes CL1 and CL2 is performed at the time of assembly.
  • dummy holes space holes as the assembly reference holes 44a, 45a
  • the center of gravity is set around the rotation axes CL1, CL2. It can be determined. Thereby, low noise and low vibration can be realized.
  • the third embodiment is different from the first embodiment in the configuration of the positioning pin and the other configuration is the same, so only the difference will be described.
  • positioning pins 40 are provided on the sides of two of the three wall fixing bolts 31 as in the first embodiment. However, the positioning pin 40 is not provided on the side of the remaining one of the wall fixing bolts 31 and no hole for the pin is provided. Further, the positioning pin 40 is made of the same material as the drive side scroll member 70. That is, when the drive side scroll member 70 is an aluminum alloy, the positioning pin 40 is also an aluminum alloy.
  • positioning pins 42 are provided on the sides of two of the three first support fixing bolts 34 in the same manner as in the first embodiment. However, the positioning pin 42 is not provided on the side of the remaining one first support fixing bolt 34, and the hole for the pin is not provided. Further, the positioning pin 42 is made of the same material as the driven scroll member 90. That is, when the driven scroll member 90 is an aluminum alloy, the positioning pin 42 is also an aluminum alloy.
  • the following effects are achieved.
  • positioning of the phase around the rotation axes CL1 and CL2 is performed. Since the positioning pins 40 and 42 are made of the same material as the scroll members 70 and 90, the center of gravity can be defined around the rotation axes CL1 and CL2. Thereby, low noise and low vibration can be realized.
  • the fourth embodiment is different from the first embodiment in that positioning is performed at the end of the wall 71b, 72b, 91b and 92b, but positioning is performed using an end plate.
  • the assembly reference hole 46a sandwiches the drive side rotation axis line CL1 on the surface opposite to the surface on which the wall 71b of the end plate 71a of the first driven scroll portion 71 is provided. Two are provided. Three bolt holes 31a are provided in the first driven scroll portion 71, but the positioning pin holes 40a and the dummy pin holes 41a as in the first embodiment are not provided on the side of the bolt holes 31a.
  • reference numeral 15b1 denotes a pin hole into which the pin member 15b shown in FIG. 1 is inserted.
  • the assembly reference hole 46a sandwiches the drive side rotation axis CL1 on the surface opposite to the surface on which the wall 72b of the end plate 72a of the second driven scroll portion 72 is provided. Two are provided. Although three bolt holes 31a are provided in the second driven side scroll portion 72, the positioning pin holes 40a and the dummy pin holes 41a as in the first embodiment are not provided on the side of the bolt holes 31a.
  • the following effects are achieved. Since two assembly reference holes 46a are provided on the surface of the end plates 71a and 72a opposite to the surface on which the walls 71b and 72b are provided, positioning of the phase around the rotation axis CL1 is performed at the time of assembly. Further, since the assembly reference holes 46a are provided symmetrically with respect to the rotation axis CL1, the center of gravity can be determined around the rotation axis CL1. Thereby, low noise and low vibration can be realized. In addition, since the assembly reference holes 46a are provided in the end plates 71a and 72a and there is no need to provide the assembly reference holes in the walls 71b and 72b, the positions for providing the assembly reference holes are irrespective of the shapes of the walls 71b and 72b. It can be set arbitrarily.
  • wall body 71b, 72b, 91b, 92b was made into three lines was demonstrated as an example in each embodiment mentioned above, this invention is not limited to this.
  • the present invention is also applicable to three or more, preferably odd-numbered scroll compressors in which positioning pins can not be provided symmetrically with respect to the rotation axis.
  • a dual-rotating scroll compressor is used as the supercharger, but the present invention is not limited to this, and any compressor that compresses fluid can be widely used.
  • it can also be used as a refrigerant compressor used in an air conditioning machine.
  • it is also possible to apply the scroll type compressor 1 of this invention to the air control apparatus which utilized the force of the air as a brake system for rail vehicles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

Le compresseur à spirale à rotation double de l'invention est équipé : d'un élément spirale côté entraînement (70) qui est entraîné en rotation par une partie entraînement, et qui possède une paroi côté entraînement (71b) de forme hélicoïdale disposée sur une plaque extrémité côté entraînement (71a); et d'un élément spirale côté entraîné qui est disposé sur une plaque extrémité côté entraîné, qui possède une paroi côté entraîné correspondant à la paroi côté entraînement (71b), et qui forme une chambre de compression par emboîtement de la paroi côté entraîné vis-à-vis de la paroi côté entraînement (71b). Des goupilles de positionnement (40) positionnant une phase autour d'une ligne axiale de rotation côté entraînement (CL1) de l'élément spirale côté entraînement (70), au niveau d'une extrémité avant dans la direction axiale de la paroi côté entraînement (71b), sont agencées en deux endroits autour de la ligne axiale de rotation côté entraînement (CL1), et une fausse-goupille (41) agencée de manière à former un intervalle angulaire égale autour de la ligne axiale de rotation côté entraînement (CL1), est agencée avec les goupilles de positionnement (40).
PCT/JP2018/004225 2017-02-17 2018-02-07 Compresseur à spirale à rotation double, et procédé d'assemblage de celui-ci WO2018150977A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US16/485,601 US20190376513A1 (en) 2017-02-17 2018-02-07 Co-rotating scroll compressor and method of assembling the same
CN201880012029.8A CN110337543B (zh) 2017-02-17 2018-02-07 双旋转涡旋型压缩机
EP18754702.1A EP3569862A4 (fr) 2017-02-17 2018-02-07 Compresseur à spirale à rotation double, et procédé d'assemblage de celui-ci

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-028083 2017-02-17
JP2017028083A JP6787814B2 (ja) 2017-02-17 2017-02-17 両回転スクロール型圧縮機およびその組立方法

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US12104594B2 (en) 2021-11-05 2024-10-01 Copeland Lp Co-rotating compressor
US11624366B1 (en) 2021-11-05 2023-04-11 Emerson Climate Technologies, Inc. Co-rotating scroll compressor having first and second Oldham couplings
US11732713B2 (en) 2021-11-05 2023-08-22 Emerson Climate Technologies, Inc. Co-rotating scroll compressor having synchronization mechanism

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JP2018132036A (ja) 2018-08-23
CN110337543B (zh) 2021-05-28
CN110337543A (zh) 2019-10-15
US20190376513A1 (en) 2019-12-12
EP3569862A1 (fr) 2019-11-20
EP3569862A4 (fr) 2020-06-17
JP6787814B2 (ja) 2020-11-18

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