WO2013187082A1 - Machine à fluide à volutes - Google Patents

Machine à fluide à volutes Download PDF

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Publication number
WO2013187082A1
WO2013187082A1 PCT/JP2013/052058 JP2013052058W WO2013187082A1 WO 2013187082 A1 WO2013187082 A1 WO 2013187082A1 JP 2013052058 W JP2013052058 W JP 2013052058W WO 2013187082 A1 WO2013187082 A1 WO 2013187082A1
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WO
WIPO (PCT)
Prior art keywords
scroll
driven
end plate
driven scroll
drive
Prior art date
Application number
PCT/JP2013/052058
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English (en)
Japanese (ja)
Inventor
智浩 笹尾
勇輔 露口
岡本　裕介
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三浦工業株式会社
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Publication of WO2013187082A1 publication Critical patent/WO2013187082A1/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
    • 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
    • F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
    • F04C18/0253—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
    • 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
    • F04C2240/50—Bearings
    • F04C2240/52—Bearings for assemblies with supports on both sides
    • 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
    • F04C2240/60—Shafts

Definitions

  • the present invention relates to a scroll fluid machine used as a compressor, an expander or a blower.
  • This application claims priority based on Japanese Patent Application No. 2012-135775 filed in Japan on June 15, 2012 and Japanese Patent Application No. 2013-008168 filed in Japan on January 21, 2013. Is hereby incorporated by reference.
  • a scroll fluid machine in which a driven scroll unit (3) is sandwiched between end plates (4a, 4b) of a drive scroll unit (4) in a casing (1, 2).
  • the drive scroll unit (4) has its drive shaft (4f, 4d) held by the casing (1, 2) by the bearings (9, 10) and at a position eccentric to the driven scroll unit (3 ) Discs (3d, 3e) are held in the casing (1, 2) by bearings (7, 8).
  • the drive scroll unit (4) and the driven scroll unit (3) are rotatably held at eccentric positions, and the driven scroll unit (3) is rotated as the drive scroll unit (4) rotates. Then, the fluid is sucked from the suction hole (3f), compressed, and discharged to the discharge hole (4j).
  • the driven wrap (3a) of the driven scroll unit (3) is formed so as to spiral inward from the peripheral side wall of the cylindrical member (outer peripheral block 30), so that the apparatus can be enlarged or rotated at high speed. It is difficult to secure strength to make it.
  • the driven scroll unit (3) is sandwiched between the end plates (4a, 4b) of the drive scroll unit (4), the drive shafts (4f, 4d) are arranged separately on the left and right sides, and one drive shaft is arranged. A double-supported structure in which the driven scroll unit (3) penetrates and is supported at both ends cannot be formed.
  • the driven scroll (8c) is configured by providing driven wraps (8b, 8b) on both sides of the end plate (8a), and the pair of driving scrolls (7c) A driving wrap (7b) is provided on one side of the end plate (7a).
  • the driven scroll (8c) is held between the drive scrolls (7c, 7c).
  • the driven wrap (8b) is secured by the end plate (8a), but the drive scroll (7c) sandwiches the driven scroll (8c) between the end plates (7a, 7a).
  • the shaft portions (7d, 5a) are arranged separately on the top and bottom, and one drive shaft is passed through the driven scroll (8c) and is supported at both ends. It cannot be a double-sided structure.
  • the shaft portion (55c) of the drive scroll (55) passes through the driven scroll (59) and is bearing (56, 57) at both ends. ) Has blades (55b) on both sides of the disk portion (55a) so as to cancel the load up and down.
  • the driven scroll (59) has a cylindrical hollow structure that accommodates the drive scroll (55), and is provided with blades (59b) on the end wall thereof.
  • the shaft portion (55c) of the drive scroll (55) is passed through the driven scroll (59), and the blade (55b) is provided on both sides of the disc portion (55a) provided in the middle of the driven scroll (59), while the exhaust port (54 ) Is provided only on the upper side, so that the compressed fluid cannot be smoothly discharged by the blades (55b) on the lower surface of the disk portion (55a).
  • the blades (55b) are provided on both sides of the disk portion (55a) of the drive scroll (55) and meshed with the blades (59b) in the hollow driven scroll (59), this meshing ( It is difficult to obtain the dimensional accuracy of each blade height, and the plate thickness (strength) of the disk portion (55a) of the drive scroll (55) is limited.
  • JP 2004-286025 A (FIGS. 1 to 4) Japanese Patent Laid-Open No. 6-341181 (FIG. 1) Japanese Patent Laid-Open No. 4-109086 (FIGS. 1, 3 and 3, page 3, lower left column, lines 13-16)
  • the problem to be solved by the present invention is to ensure the strength of both the driving scroll and the driven scroll so as to cope with the increase in size and the rotation speed.
  • the present invention has been made to solve the above problems, and the invention according to claim 1 has a drive shaft that is bearing on both sides in the axial direction, and an end plate in the middle of the drive shaft.
  • a driving scroll having a driving lap provided on one side of the end plate extending to the front end side in the axial direction of the drive shaft, and an end plate disposed on the front end side in the axial direction from the end plate of the driving scroll;
  • the end plate is provided with a driven lap through which the drive shaft passes and extends toward the proximal end in the axial direction.
  • the driven lap is arranged so as to mesh with the drive wrap, and is driven eccentrically with the drive scroll.
  • the driving scroll in between Serial integrated with the driven scroll said is a driven scroll concentric and eccentric to the driving scroll a scroll fluid machine characterized in that it comprises a driven scroll cap is bearing.
  • both the driving scroll and the driven scroll can have a dual-support structure, and the driving wrap and the driven wrap can be provided on the end plate to ensure strength. Accordingly, it is possible to easily cope with an increase in size and speed.
  • the invention according to claim 2 is the scroll fluid machine according to claim 1, further comprising a rotation synchronization mechanism that rotates the driven scroll cap and the driven scroll in accordance with the rotation of the drive scroll.
  • the driven scroll can be moved with the rotation of the drive scroll by the rotation synchronization mechanism.
  • the invention according to claim 3 is the scroll fluid machine according to claim 2, wherein the rotation synchronization mechanism is disposed between an end plate of the driven scroll cap and an end plate of the drive scroll. It is.
  • the installation location of the rotation synchronization mechanism can be between the end plate of the driven scroll cap and the end plate of the drive scroll.
  • the rotation synchronization mechanism is disposed closer to the distal end side in the axial direction than the end plate of the driven scroll, or is disposed closer to the proximal end side in the axial direction than the end plate of the driven scroll cap.
  • the rotation synchronization mechanism can be installed at the axially distal end side of the driven scroll end plate or the axially proximal end side of the driven scroll cap end plate. Thereby, the maintenance of the rotation synchronization mechanism can be facilitated.
  • a boss part is formed at the center part of the end plate of the driven scroll so as to protrude toward the tip end side in the axial direction.
  • the drive shaft is passed with a gap between them, the gap is used as a fluid flow path, and a boss part is formed in the center part of the end plate of the driven scroll cap so as to protrude toward the axial base end side,
  • the drive shaft is passed through the through hole of the boss portion with a gap between the inner peripheral surface, and the driven scroll and the driven scroll cap are connected to other members at the outer peripheral portion of the boss portion.
  • the fluid flow path can be secured with a simple configuration without the drive shaft having a hollow structure.
  • the strength of both the driving scroll and the driven scroll can be ensured so as to cope with an increase in size and a high-speed rotation.
  • FIG. 1 It is a schematic exploded perspective view of one Example of the scroll fluid machine of the present invention, and has shown the state seen from the left side (axial direction end side). It is a figure which shows the state which looked at each component of FIG. 1 from the right side (axial direction front end side). It is a schematic longitudinal cross-sectional view which shows the assembly state of each component of FIG.
  • FIG. 1 and FIG. 2 are schematic exploded perspective views showing a main part of one embodiment of the scroll fluid machine 1 of the present invention.
  • FIG. 1 is a state seen from the left side (axial base end side), and FIG. The state seen from the (front end side in the axial direction) is shown.
  • FIG. 3 is a schematic longitudinal sectional view showing an assembled state of the components shown in FIGS. 1 and 2.
  • the axial base end side refers to the left side (left side of the drive shaft) in FIG. 3
  • the axial direction distal side refers to the right side (right side of the drive shaft) in FIG.
  • the scroll fluid machine 1 of the present embodiment includes a drive scroll unit 2 and a driven scroll unit 3 that rotate around mutually eccentric axes as main parts.
  • the drive scroll unit 2 includes a drive shaft 4 that is rotated by a motor (not shown), and a drive scroll 6 that is provided in the middle of the drive scroll unit 6 and has a drive wrap 5.
  • the driven scroll unit 3 includes a driven scroll 8 having a driven wrap 7 and a driven scroll cap 9 provided so as to sandwich the drive scroll 6 therebetween.
  • the driving scroll 6 and the driven scroll 8 are accommodated in a housing 10 (10A, 10B).
  • the drive shaft 4 is horizontally arranged in FIG. 3 and is rotatably held by bearings 11 and 12 at both ends in the axial direction. Specifically, the drive shaft 4 is provided through the housing 10, and a protrusion from the housing 10 is rotatably held by a member (not shown) fixed to the housing 10 via bearings 11 and 12. Is done.
  • the drive shaft 4 is connected to an output shaft (not shown) of the motor at one end in the axial direction (in this embodiment, the axial base end) and is rotated by driving the motor.
  • the drive scroll 6 has an end plate 13 in the middle of the drive shaft 4, and a drive wrap 5 is provided on one side of the end plate 13 so as to extend toward the front end side in the axial direction of the drive shaft 4.
  • a disc-shaped end plate 13 is provided coaxially in the middle of the drive shaft 4, and the end plate 13 has an axially distal end surface extending perpendicularly to the plate surface to the axially distal end side.
  • One or more plate-like drive wraps 5 are provided.
  • the drive wrap 5 is formed in a spiral shape of an involute curve from the central portion of the end plate 13 toward the outer peripheral portion.
  • the end plate 13 is provided with two drive wraps 5 at equal intervals in the circumferential direction, but the number of drive wraps 5 can be changed as appropriate.
  • the drive shaft 4 and the drive scroll 6 are integrally formed. However, after the two are formed separately, the drive scroll 6 may be fixed to the drive shaft 4 so as to be integrally rotatable.
  • the driven scroll 8 has an end plate 14 disposed on the distal end side in the axial direction with respect to the end plate 13 of the drive scroll 6.
  • the drive shaft 4 penetrates the end plate 14 and extends to the proximal end side in the axial direction.
  • a driven wrap 7 is provided.
  • the driven scroll 8 has a disk-shaped end plate 14, and the end plate 14 has an axially proximal end surface extending to the axially proximal end side perpendicular to the plate surface.
  • One or a plurality of plate-like driven wraps 7 are provided.
  • the number of driven wraps 7 corresponding to the number of drive wraps (two in the present embodiment) is provided, and the end wraps 7 are curved in an involute curve from the center to the outer periphery.
  • the end plate 14 of the driven scroll 8 is formed with a cylindrical boss portion 15 at the center thereof so as to protrude toward the front end in the axial direction.
  • the end plate 14 and the boss portion 15 of the driven scroll 8 are integrally formed. However, after both are formed separately, the boss portion 15 may be fixed to the end plate 14 of the driven scroll 8. .
  • the hole 16 of the boss 15 of the driven scroll 8 is also formed so as to penetrate the end plate 14.
  • the diameter of the through hole 16 is formed to be larger than the outer diameter of the drive shaft 4, and the drive shaft 4 is passed through a clearance from the inner peripheral surface of the through hole 16.
  • the gap between the outer peripheral surface of the drive shaft 4 and the inner peripheral surface of the through hole 16 of the boss portion 15 is a fluid flow path (for example, discharge of the compressed fluid when the scroll fluid machine 1 is used as a compressor) as described later. It also functions as a road.
  • the end plate 14 of the driven scroll 8 has a larger diameter than the end plate 13 of the drive scroll 6.
  • the extension dimension of the driven wrap 7 from the end plate 14 of the driven scroll 8 is the extension dimension of the drive wrap 5 from the end plate 13 of the drive scroll 6 (width of the drive wrap 5). Dimension).
  • the driven scroll 8 is disposed so that the drive shaft 4 is passed through the through hole 16 and the driven wrap 7 is engaged with the drive wrap 5.
  • the driven scroll cap 9 includes an end plate 17 disposed closer to the proximal end side in the axial direction than the end plate 13 of the drive scroll 6, and a cylindrical portion 18 extending from the outer peripheral portion of the end plate 17 toward the distal end side in the axial direction.
  • the drive shaft 4 is penetrated in the center.
  • the cylindrical portion 18 has an outer diameter corresponding to the outer diameter of the end plate 14 of the driven scroll 8, and has an inner diameter larger than that of the end plate 13 of the drive scroll 6.
  • the end plate 17 of the driven scroll cap 9 is formed with a cylindrical boss portion 19 at the center thereof so as to protrude toward the proximal end in the axial direction.
  • the end plate 17 and the boss portion 19 of the driven scroll cap 9 are integrally formed, but after the two are formed separately, the boss portion 19 is fixed to the end plate 17 of the driven scroll cap 9. Also good.
  • the hole 20 of the boss portion 19 of the driven scroll cap 9 is also formed so as to penetrate the end plate 17.
  • the diameter of the through hole 20 is formed larger than the outer diameter of the drive shaft 4.
  • the diameter of the through-hole 20 of the driven scroll cap 9 may be equal to the diameter of the through-hole 16 of the driven scroll 8, but if the driven scroll cap 9 can turn with respect to the drive scroll 6, the diameter of the through-hole 16 of the driven scroll 8. It is better to make it smaller.
  • the reason is that the clearance between the through hole 16 of the driven scroll 8 and the drive shaft 4 also serves as a fluid flow path, but the clearance between the through hole 20 of the driven scroll cap 9 and the drive shaft 4 does not become a fluid flow path. Because.
  • the flow velocity can be adjusted by appropriately adjusting the diameter (flow channel cross-sectional area) of the through hole 16 of the driven scroll 8 on the side that becomes the fluid flow channel.
  • the driven scroll cap 9 has its cylindrical portion 18 so that the axial front end surface of the cylindrical portion 18 abuts against the end plate 14 of the driven scroll 8 so as to cover the meshing portion of the drive wrap 5 and the driven wrap 7. And fixed with screws or the like. Thereby, the driven scroll 8 and the driven scroll cap 9 are integrated.
  • Such a driven scroll unit 3 is rotatably held in the housing 10 by bearings 21 and 22.
  • the cylindrical plate 18 is provided on the end plate 17 of the driven scroll cap 9 so as to extend toward the front end side in the axial direction, and the end surface in the axial direction is in contact with the end plate 14 of the driven scroll 8.
  • the end plate 14 of the driven scroll 8 extends to the base end side in the axial direction to provide a cylindrical portion 18, and the base end surface of the axial direction is provided on the end plate 17 of the driven scroll cap 9. You may abut and fix.
  • the end plate 17 of the driven scroll cap 9 extends to the distal end side in the axial direction to provide a cylindrical portion 18, and the end plate 14 of the driven scroll 8 extends to the proximal end side in the axial direction to provide the cylindrical portion 18.
  • both cylindrical portions 18 may be abutted and fixed.
  • the strength of the driven wrap 7 can be further ensured by connecting the spiral outer end of the driven wrap 7 to the cylindrical portion 18. it can.
  • the housing 10 has a cylindrical shape with a step, and includes a large-diameter portion 23 at a central portion in the axial direction and small-diameter portions 24 and 25 provided on the left and right sides thereof.
  • the first housing 10A is disposed on the distal end side in the axial direction
  • the second housing 10B is disposed on the proximal end side in the axial direction.
  • the first housing 10A has a cylindrical shape with a step, the large diameter portion 23 is disposed on the axial base end side, and the small diameter portion 25 is disposed on the axial distal end side.
  • the inner diameter of the large diameter portion 23 is larger than the outer diameter of the cylindrical portion 18 of the driven scroll cap 9, and the width dimension of the large diameter portion 23 is the end plate 14 of the driven scroll 8 and the end plate 17 of the driven scroll cap 9. Greater than the distance.
  • the second housing 10B includes a small-diameter portion 24 having the same configuration as the small-diameter portion 25 of the first housing 10A, and a disk portion 26 provided at the tip in the axial direction. Then, the first housing 10A and the second housing 10B are integrated so that the disk portion 26 of the second housing 10B closes the opening of the large diameter portion 23 of the first housing 10A.
  • the first housing 10A is provided with the large-diameter portion 23, and the opening on the proximal end side in the axial direction is closed by the disc portion 26 of the second housing 10B. It is good also as a structure which provides the large diameter part 23 in the two housing 10B side, and closes the opening part of the axial direction front end side with the disc part of 10 A of 1st housings.
  • the driven scroll 8 and the driven scroll cap 9 that house the drive scroll 6 are housed in the housing 10.
  • the boss portions 15 and 19 of the driven scroll 8 and the driven scroll cap 9 are rotatably held in the inner holes of the small diameter portions 25 and 24 of the housing 10 via the bearings 22 and 21 at the outer peripheral portions thereof.
  • the driven scroll 8 and the driven scroll cap 9 can be integrally rotated on the same axis.
  • the drive shaft 4 of the drive scroll 6 is rotatably held by the member (not shown) integral with the housing 10 via the bearings 11 and 12. In this way, the driven scroll unit 3 is held eccentrically with the drive scroll unit 2 so as to be rotatable.
  • a rotation synchronization mechanism 27 is provided between the end plate 13 of the drive scroll 6 and the end plate 17 of the driven scroll cap 9, and is driven as the drive scroll unit 2 rotates.
  • the scroll unit 3 rotates.
  • the configuration of the rotation synchronization mechanism 27 is not particularly limited, but in the present embodiment, it is an Oldham coupling. That is, as shown in FIG. 1, first convex portions 28, 28 are formed on the axially proximal end surface of the end plate 13 of the drive scroll 6 so as to extend in the radial direction at positions opposed to the radial direction. . Further, as shown in FIG. 2, second convex portions 29, 29 are formed in the axially leading end surface of the end plate 17 of the driven scroll cap 9 so as to extend in the radial direction at positions opposed to the radial direction. Yes.
  • both the convex portions 28 and 29 are connected by the Oldham ring 30 so that the first convex portion 28 and the second convex portion 29 are shifted by 90 degrees.
  • the Oldham ring 30 has first recesses 31, 31 formed in the radial direction on the axial front end surface, and second recesses 32, 32 formed in the radial direction on the axial base end surface.
  • the first concave portion 31 and the second concave portion 32 are formed at positions shifted by 90 degrees in the circumferential direction, and the first convex portion 28 is fitted into the first concave portion 31 to be slidable.
  • the second convex portion 29 is fitted in the concave portion 32 and can be slid.
  • the scroll fluid machine 1 of the present embodiment is configured as described above, when the drive scroll 6 is rotated by the drive shaft 4, the driven scroll 8 is also rotated at a position eccentric to the drive shaft 4. Along with this, fluid is sucked from the suction port (not shown) of the large-diameter portion 23 of the housing 10 and the cylindrical portion 18 of the driven scroll cap 9, and the fluid is compressed between the driving wrap 5 and the driven wrap 7. However, the spiral can be moved from the outer end side to the inner end side and discharged from the through hole 16 of the boss portion 15 of the driven scroll 8. If the drive shaft 4 is reversed, fluid can be sucked from the through hole 16 of the boss portion 15 of the driven scroll 8 and discharged to the suction port.
  • the scroll fluid machine 1 of the present embodiment can be used as a compressor, an expander, a blower, a vacuum pump, and the like.
  • the driving scroll 6 and the driven scroll 8 receive a force in a direction away from each other, but the end plate 13 of the driving scroll 6 and the driven scroll cap 9 (integrated with the driven scroll 8) via the Oldham ring 30. If the end plate 17 is kept in contact, the pressure in the axial direction can be offset. In addition, you may perform such a function with the member arrange
  • Such a member may be a protrusion provided on the end plate 13 of the drive scroll 6 or a protrusion provided on the end plate 17 of the driven scroll cap 9.
  • the driving scroll 6 or the driving shaft 4, the driven scroll 8 or the driven scroll cap 9 may be dealt with by restricting the axial movement of the housing 10.
  • the driving scroll 6 has the driving wrap 5 provided on the end plate 13, while the driven scroll 8 has the driven wrap 7 provided on the end plate 14. Thereby, deformation of the driving scroll 6 and the driven scroll 8 can be prevented.
  • the drive shaft 4 is provided with bearings 11 and 12 on both sides in the axial direction of the housing 10 or a member integral therewith, while the driven scroll 8 is provided with a driven scroll cap 9 and is also provided with bearings 21 and 12 on both sides in the axial direction. 22
  • both the driving scroll 6 and the driven scroll 8 are supported by both ends instead of being cantilevered, so that it is possible to cope with an increase in size and speed.
  • the rotation synchronization mechanism 27 that rotates the driven scroll 8 with the rotation of the driving scroll 6 is disposed between the end plate 13 of the driving scroll 6 and the end plate 17 of the driven scroll cap 9, and thus has a simple configuration. Rotational transmission from the driving scroll 6 to the driven scroll 8 can be performed in a compact and reliable manner.
  • the scroll fluid machine 1 of the present invention is not limited to the configuration of the above embodiment, and can be changed as appropriate.
  • the rotation synchronization mechanism 27 rotates the driven scroll 8 and the driven scroll cap 9 as the drive scroll 6 rotates
  • the installation location and specific configuration are not limited to the above-described embodiment.
  • the rotation synchronization mechanism 27 is disposed between the end plate 17 of the driven scroll cap 9 and the end plate 13 of the drive scroll 6.
  • the end plate 14 may be disposed closer to the distal end side in the axial direction than the end plate 14, or may be disposed closer to the proximal end side in the axial direction than the end plate 17 of the driven scroll cap 9.
  • the rotation synchronization mechanism 27 may be disposed either inside or outside the housing 10.
  • the rotation synchronization mechanism 27 is configured by an Oldham coupling, but is not limited thereto, and various conventionally known configurations can be employed.
  • the installation location is not particularly limited. Therefore, in the following, when there is a reference about an installation location, it is an example. That is, as described above, the rotation synchronization mechanism 27 is disposed between the end plate 17 of the driven scroll cap 9 and the end plate 13 of the drive scroll 6, in the axial front end side than the end plate 14 of the driven scroll 8, or the driven scroll cap.
  • Nine end plates 17 may be disposed at any position on the proximal side in the axial direction.
  • (A) Pin Crank Mechanism A plurality of crank members having two pins whose center positions are offset by a distance corresponding to the turning radius of the drive scroll 6 are used. In each crank member, for example, one pin is held by the end plate 13 of the drive scroll 6 and the other pin is held by the end plate 17 of the driven scroll cap 9. Then, the rotation of the driving scroll 6 is transmitted to the driven scroll 8 through this crank member.
  • Cam pin mechanism For example, a plurality of pins are arranged on the base end side in the axial direction of the end plate 13 of the driving scroll 6 and perpendicular to the plate surface, and the driving scroll is started from the center of the pin on the tip end side in the axial direction of the end plate 17 of the driven scroll cap 9. A hole having a radius in contact with the outer diameter of the pin is provided for each pin, with the center position offset by a distance corresponding to the turning radius of 6. Then, the rotation of the driving scroll 6 is transmitted to the driven scroll 8 through the pin and the inner peripheral portion of the hole provided in the driven scroll cap 9.
  • (C) Relay gear mechanism A drive gear and a driven gear having the same gear shape are formed on, for example, the drive shaft 4 and the boss portion 19 of the driven scroll cap 9, and the rotation of the drive gear is transmitted to the driven gear via the relay gear. To do.
  • (D) Ball coupling mechanism For example, between the end plate 13 of the drive scroll 6 and the end plate 17 of the driven scroll cap 9, a plurality of pockets for holding balls (steel balls) on the end plates 13, 17 And a ball is held between the rings. The rotation of the driving scroll 6 is transmitted to the driven scroll 8 while the ball rolls along the pocket of the ring.
  • (E) Magnet coupling mechanism A drive magnet and a driven magnet having the same outer diameter and magnetization pattern are provided on the drive shaft 4 and the boss portion 19 of the driven scroll cap 9, and the rotation of the drive magnet is transferred to the driven magnet via the relay magnet. introduce.

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

Abstract

La présente invention concerne une machine à fluide à volutes garantissant la résistance d'une volute d'entraînement et d'une volute entraînée de façon à pouvoir faire face à de plus grandes tailles et à des vitesses de rotation plus élevées. Un arbre d'entraînement (4) est reçu (11, 12) aux deux extrémités dans la direction axiale. La volute d'entraînement (6) est pourvue d'un chevauchement d'entraînement (5) sur une surface d'une plaque d'extrémité (13). La volute entraînée (8) est conçue de telle sorte qu'un chevauchement entraîné (7) met en prise le chevauchement d'entraînement (5), et est supportée (21, 22) de manière excentrique par rapport à la volute d'entraînement (6). La volute d'entraînement (6) est disposée entre la plaque d'extrémité (17) d'un capuchon de volute entraînée (9) et la plaque d'extrémité (14) de la volute entraînée (8).
PCT/JP2013/052058 2012-06-15 2013-01-30 Machine à fluide à volutes WO2013187082A1 (fr)

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JP2012-135775 2012-06-15
JP2012135775 2012-06-15
JP2013008168A JP2014015926A (ja) 2012-06-15 2013-01-21 スクロール流体機械
JP2013-008168 2013-01-21

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JP6185297B2 (ja) * 2013-06-14 2017-08-23 アネスト岩田株式会社 スクロール式流体機械

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2557519B2 (ja) * 1989-01-31 1996-11-27 三菱電機株式会社 全系回転形スクロール流体装置
JP2864635B2 (ja) * 1990-03-12 1999-03-03 ダイキン工業株式会社 スクロール型流体装置
JPH11132168A (ja) * 1997-10-30 1999-05-18 Nitto Kohki Co Ltd スクロール式流体機械
JP3424322B2 (ja) * 1994-05-30 2003-07-07 ダイキン工業株式会社 共回り型スクロール流体機械

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2557519B2 (ja) * 1989-01-31 1996-11-27 三菱電機株式会社 全系回転形スクロール流体装置
JP2864635B2 (ja) * 1990-03-12 1999-03-03 ダイキン工業株式会社 スクロール型流体装置
JP3424322B2 (ja) * 1994-05-30 2003-07-07 ダイキン工業株式会社 共回り型スクロール流体機械
JPH11132168A (ja) * 1997-10-30 1999-05-18 Nitto Kohki Co Ltd スクロール式流体機械

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