WO2015098467A1 - スクロール流体機械 - Google Patents

スクロール流体機械 Download PDF

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Publication number
WO2015098467A1
WO2015098467A1 PCT/JP2014/082241 JP2014082241W WO2015098467A1 WO 2015098467 A1 WO2015098467 A1 WO 2015098467A1 JP 2014082241 W JP2014082241 W JP 2014082241W WO 2015098467 A1 WO2015098467 A1 WO 2015098467A1
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WO
WIPO (PCT)
Prior art keywords
scroll
housing
wrap
orbiting
orbiting scroll
Prior art date
Application number
PCT/JP2014/082241
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
智浩 笹尾
岡本　裕介
Original Assignee
三浦工業株式会社
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 三浦工業株式会社 filed Critical 三浦工業株式会社
Priority to KR1020167005749A priority Critical patent/KR102260104B1/ko
Priority to CN201480054054.4A priority patent/CN105612351B/zh
Publication of WO2015098467A1 publication Critical patent/WO2015098467A1/ja

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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
    • F04C18/0215—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 only one member is moving
    • F04C18/0223—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 only one member is 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
    • F04C23/001—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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/005—Axial sealings for working fluid
    • 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
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/70—Disassembly methods

Definitions

  • the present invention relates to a scroll fluid machine used as a compressor, an expander or a blower.
  • the scroll compressor includes a pair of fixed scrolls (1, 2), a turning scroll (3), a drive shaft (5), and an auxiliary drive shaft (6).
  • the fixed scrolls (1, 2) are provided with spiral fixed wraps (1b, 2b) on one side of the end plates (1a, 2a).
  • the orbiting scroll (3) is provided with spiral orbiting wraps (3b, 3c) on both sides of the end plate (3a). In a state where the fixed wrap (1b, 2b) and the orbiting wrap (3b, 3c) are engaged, the orbiting scroll (3) is sandwiched between the pair of fixed scrolls (1, 2).
  • the drive shaft (5) and the auxiliary drive shaft (6) are each provided with an eccentric shaft portion in the middle in the axial direction, and the orbiting scroll (3) is interposed on the eccentric shaft portion via bearings (11a, 11b). Retained.
  • the rotation of the drive shaft (5) is transmitted to the auxiliary drive shaft (6) through a rotation synchronization mechanism provided with a timing belt (17), and the orbiting scroll (3) rotates with respect to the fixed scrolls (1, 2). .
  • gas is sucked from the suction port (22), compressed, and discharged to the discharge port (10).
  • the problem to be solved by the present invention is to provide a scroll fluid machine in which the fixed scroll can be easily detached from the orbiting scroll without requiring large-scale disassembly, and thereby the internal maintenance is easy.
  • the present invention has been made in order to solve the above-mentioned problems, and the invention according to claim 1 is characterized in that the orbiting scroll provided with spiral orbiting wraps on both surfaces of the substrate portion and the orbiting wrap can be orbited.
  • a housing having a housing hole to be accommodated, wherein the substrate portion is disposed perpendicular to the axis of the housing hole, and the orbiting scroll is rotatably held by a crankshaft at three or more circumferential directions on the outer peripheral portion of the substrate portion;
  • a spiral fixed wrap is provided on one side of the end plate, and the fixed wrap is engaged with the orbiting wrap, and a pair of fixed scrolls are provided detachably on the housing so as to sandwich the orbiting scroll. It is the scroll fluid machine characterized.
  • the orbiting scroll has the orbiting wrap disposed in the housing hole of the housing and is held in the housing so as to be orbitable.
  • the fixed scroll is detachably provided on the housing so as to close the housing hole of the housing. Therefore, the fixed scroll can be easily detached from the housing without disassembling the bearing portion of the orbiting scroll with respect to the housing, and the internal maintenance can be easily performed. Further, since the orbiting scroll is held in the housing by the crankshaft at three or more locations in the circumferential direction, no dead point is generated when the orbiting scroll is rotated.
  • a tip seal that fills a gap with the end plate of the fixed scroll along the spiral of the swirl wrap is attached to and detached from the swivel wrap along the spiral of the swirl wrap.
  • the fixed wrap is detachably provided with a tip seal extending from the end plate along the spiral of the fixed wrap so as to fill a gap with the substrate portion of the orbiting scroll.
  • the fixed scroll can be easily removed from the housing without disassembling the bearing portion of the orbiting scroll with respect to the housing, and each tip seal of the fixed wrap and the orbiting wrap can be easily replaced. Yes.
  • a cylindrical outer peripheral wrap is provided on an end plate of the fixed scroll so as to surround the fixed wrap, and the outer peripheral wrap is provided with a leading end extending from the end plate.
  • the fixed scroll can be easily removed from the housing without disassembling the bearing portion of the orbiting scroll with respect to the housing, and the outer seal of the outer peripheral wrap can be easily replaced.
  • a pair of flanges are formed in the middle of the housing hole in the axial direction so as to be separated from each other in the axial direction of the housing hole and extend to the inside of the housing hole.
  • the outer peripheral portion of the orbiting scroll is held by the crankshaft so as to be orbitable with respect to the fixed scroll outside the housing hole of the housing through an opening between the pair of flanges, and the flange of the housing.
  • the end plates of the fixed scroll are overlapped and fixed detachably, and a rotational driving force is given to only one of the crankshafts installed at three or more locations in the circumferential direction of the housing.
  • Item 4 The scroll fluid machine according to any one of Items 1 to 3.
  • the fixed scroll can be attached to and detached from the flange provided in the housing hole of the housing. Since the flange is provided in the middle of the receiving hole in the axial direction, the end plate of the fixed scroll can be disposed and attached in the receiving hole, and can be assembled compactly. Further, only one of the crankshafts installed at three or more locations in the circumferential direction of the housing is given a rotational driving force, and a rotation synchronization mechanism is unnecessary. That is, even when used as a compressor or a blower, it is not necessary to apply a rotational driving force to all the crankshafts using the rotation synchronization mechanism, and a rotational driving force is applied to only one crankshaft (that is, input). Just do it.
  • the orbiting scroll can be rotated by a fluid, and a rotational driving force can be applied (that is, output) to only one crankshaft.
  • a rotational driving force that is, output
  • the orbiting scroll includes an orbiting scroll base that is held by the housing via the crankshaft, and an orbiting scroll body that is provided on both sides of the center portion of the orbiting scroll base.
  • the scroll fluid machine according to any one of claims 1 to 4, wherein the orbiting scroll main body includes the orbiting wrap and is detachably attached to the orbiting scroll base.
  • the orbiting scroll main body having the orbiting wrap is detachable from the orbiting scroll base supported by the housing, the orbiting scroll main body is removed from the orbiting scroll base. Maintenance of the scroll body is facilitated. That is, since a pair of orbiting scroll bodies can be handled individually one by one, maintenance is facilitated.
  • FIG. 3 is a sectional view taken along line III-III in FIG.
  • FIG. 4 is a partially enlarged view of FIG. 3, showing a state in which the fixed scroll is removed from the housing.
  • FIG. 1 to 4 are schematic views showing an embodiment of a scroll fluid machine 1 according to the present invention.
  • FIG. 1 is a plan view
  • FIG. 2 is a bottom view
  • FIG. 3 is a sectional view taken along line III-III in FIG. 4 is a partially enlarged view of FIG.
  • directions may be described as up and down and left and right in FIG. 3 (strictly, the left half or right half is a cross-sectional view of III-III). It is not intended to limit the attitude.
  • the scroll fluid machine 1 of the present embodiment includes a housing 2, a turning scroll 3 that is rotatably held in the housing 2, and a pair of fixed scrolls that are detachably fixed to the housing 2. 4.
  • the housing 2 is formed into a thick short cylindrical shape, and the central through-hole is an accommodation hole 6 that accommodates the orbiting wrap 5 of the orbiting scroll 3 so as to be orbitable.
  • the accommodation hole 6 also accommodates the fixed wrap 7 of the fixed scroll 4.
  • a hollow portion 8 is formed along the circumferential direction so as to open to the inner peripheral surface of the axially intermediate portion, and the axial direction sandwiching the opening 9 of the hollow portion 8 on the inner peripheral surface Flange 10 is formed on both sides so as to extend radially inward. More specifically, a hollow portion 8 is continuously formed in the circumferential side wall of the housing 2 along the circumferential direction, and the hollow portion 8 is formed at the center in the vertical direction of the inner circumferential surface of the circumferential side wall. It opens continuously along the circumferential direction, and an annular plate-like flange 10 is integrally formed so as to extend radially inward above and below the opening 9.
  • the housing 2 is composed of two upper and lower members. Specifically, in FIG. 3, the housing 2 is composed of an upper housing material 2 ⁇ / b> A disposed above and a lower housing material 2 ⁇ / b> B disposed below. Of the pair of upper and lower flanges 10 described above, the upper flange 10 is provided on the upper housing member 2A, and the lower flange 10 is provided on the lower housing member 2B. Both housing materials 2A and 2B are detachably integrated with screws 11 (FIG. 1) at the outer periphery.
  • the orbiting scroll 3 is configured by providing spiral orbiting wraps 5 on both surfaces of a disk-shaped substrate portion 12.
  • the orbiting scroll 3 includes an orbiting scroll base 13 that is rotatably held in the housing 2 and a pair of orbiting scroll bodies 14 that are fixed above and below the central portion of the orbiting scroll base 13. .
  • the orbiting scroll base 13 may be integrally formed with one or both of the pair of orbiting scroll bodies 14.
  • the orbiting scroll base 13 includes an annular plate-like portion 15, and the center round hole 16 is enlarged in both upper and lower surfaces. Then, the end plate 17 of the orbiting scroll body 14 is fitted and fixed in the enlarged diameter hole 16a.
  • attachment cylinders 19 to the crankshaft 18 are integrally formed at three circumferentially equal intervals.
  • the mounting cylinder 19 is arranged with its axis line along the vertical direction.
  • the vertical dimension of the mounting cylinder 19 is formed larger than the vertical dimension (thickness) of the plate-like portion 15.
  • Each orbiting scroll main body 14 is provided with one or a plurality of plate-like orbiting wraps 5 on one side of a disk-like end plate 17 perpendicular to the plate surface.
  • the upper orbiting scroll body 14 is provided with the orbiting wrap 5 upward on the upper surface of the end plate 17, and the lower orbiting scroll body 14 includes the end plate 17.
  • a swirl wrap 5 is provided on the lower surface facing downward. At this time, each swirl wrap 5 is formed to be curved in a spiral shape of an involute curve from the central portion of the end plate 17 toward the outer peripheral portion.
  • each orbiting wrap 5 the gap between the fixed scroll 4 and the end plate 20 is filled in the leading end portion extending from the end plate 17 (the upper end portion of the upper orbiting wrap 5 and the lower end portion of the lower orbiting wrap 5).
  • a tip seal 21 is provided along the spiral so as to be detachable.
  • each orbiting scroll main body 14 is fitted in the diameter-enlarged hole 16a of the orbiting scroll base 13, and is fixed to the orbiting scroll base 13 by screws (not shown).
  • the plate-like portion 15 of the orbiting scroll base 13 and the end plate 17 of the orbiting scroll main body 14 are integrated to constitute the substrate portion 12 of the orbiting scroll 3.
  • the turning scroll 3 becomes a shape by which the turning wrap 5 was provided in both surfaces of the board
  • a cylindrical spacer 22 is provided between the end plates 17 of the upper and lower orbiting scroll bodies 14 at the center in the radial direction, and the bending of each orbiting scroll body 14 is prevented.
  • the substrate portion 12 is arranged perpendicular to the axis of the accommodation hole 6 in a state where the orbiting wrap 5 is arranged in the accommodation hole 6 of the housing 2. At this time, the outer peripheral portion of the substrate portion 12 extends outward from the accommodation hole 6 through the opening 9 between the flanges 10 of the housing 2. And the orbiting scroll 3 is hold
  • crankshaft 18X Of the three crankshafts 18, one is a drive crankshaft 18X to which a rotational driving force is applied, and the remaining two are driven crankshafts 18Y to which such a rotational driving force is not applied.
  • FIG. 3 one shown on the left side is the drive crankshaft 18X, and the remaining two are the driven crankshaft 18Y.
  • the drive crankshaft 18X extends in the axial direction (downward in FIG. 3) from the driven crankshaft 18Y. That is, the drive crankshaft 18X and the driven crankshaft 18Y have basically the same configuration, but the drive crankshaft 18X has an extending portion 18a extending downward from the driven crankshaft 18Y.
  • Each crankshaft 18 is provided with an eccentric shaft portion 18d eccentrically between main shaft portions 18b and 18c arranged on the same axis.
  • Each crankshaft 18 is rotatably held above and below the housing 2 at both main shaft portions 18b and 18c across the eccentric shaft portion 18d.
  • the upper main shaft portion 18 b is rotatably held on the upper wall of the housing 2 via the upper bearing 23, and the lower main shaft portion 18 c rotates on the lower wall of the housing 2 via the lower bearing 24. It is held freely.
  • the outer ring of the upper bearing 23 is fitted into the upper large-diameter hole of the stepped hole provided in the upper wall of the housing 2 from above and is held by a locking ring 25 provided in the opening of the large-diameter hole. Further, the inner ring of the upper bearing 23 is fitted and fixed to the main shaft portion 18 b above the crankshaft 18.
  • the outer ring of the lower bearing 24 is fitted into the lower large-diameter hole in the stepped hole provided in the lower wall of the housing 2 from below and is held by a retaining ring 26 provided in the opening of the large-diameter hole. Further, the inner ring of the lower bearing 24 is fitted into the main shaft portion 18c below the crankshaft 18, and is held by a stepped portion of the main shaft portion 18c and a retaining nut 27 screwed into the main shaft portion 18c.
  • the mounting cylinder 19 of the orbiting scroll 3 is held on the eccentric shaft portion 18d of the crankshaft 18 via the orbiting holding bearing 28.
  • the two swivel holding bearings 28 are used while being stacked one above the other.
  • the outer ring of the orbiting holding bearing 28 is fitted into the upper large-diameter hole of the stepped hole provided in the mounting cylinder 19 of the orbiting scroll 3 from above and is held by a retaining ring 29 provided at the opening of the large-diameter hole.
  • the inner ring of the swivel holding bearing 28 is fitted into the eccentric shaft portion 18d of the crankshaft 18, and is held by a stepped portion at the lower end portion of the eccentric shaft portion 18d and a retaining nut 30 screwed into the eccentric shaft portion 18d.
  • Each crankshaft 18 is provided with a weight balancer 31 for smooth rotation of the orbiting scroll 3.
  • weight balancers 31 are respectively provided at the lower end portion of the upper main shaft portion 18b and the upper end portion of the lower main shaft portion 18b.
  • Each fixed scroll 4 is provided with one or a plurality of plate-like fixed wraps 7 on one side of a disk-like end plate 20 perpendicular to the plate surface.
  • the upper fixed scroll 4 is provided with a fixed wrap 7 on the lower surface of the end plate 20, and the lower fixed scroll 4 is provided on the upper surface of the end plate 20.
  • a fixed wrap 7 is provided upward.
  • the fixed wrap 7 is provided in a number corresponding to the swirl wrap 5, and is formed to be curved in a spiral shape of an involute curve from the central portion of the end plate 20 toward the outer peripheral portion.
  • Each fixed wrap 7 is filled with a gap between the end plate 20 extending from the end plate 20 (the lower end portion of the upper fixed wrap 7 and the upper end portion of the lower fixed wrap 7) with the end plate 17 of the orbiting scroll 3.
  • a chip seal 32 is provided along the spiral so as to be detachable.
  • Each cylindrical scroll 4 is provided with a cylindrical outer peripheral wrap 33 so as to surround the fixed wrap 7.
  • the upper fixed scroll 4 is provided with an outer peripheral wrap 33 downward on the lower surface of the end plate 20, and the lower fixed scroll 4 is disposed on the upper surface of the end plate 20.
  • An outer peripheral wrap 33 is provided upward.
  • the height of the outer peripheral wrap 33 (extension dimension from the end plate 20) substantially corresponds to the height of the fixed wrap 7 (extension dimension from the end plate 20).
  • One or a plurality of annular external seals 34 are attached to and detached from the outer peripheral wraps 33 at the leading end portions extending from the end plate 20 (the lower end portion of the upper outer peripheral wrap 33 and the upper end portion of the lower outer peripheral wrap 33). It is possible to be provided along the circumferential direction.
  • Each fixed scroll 4 is detachably provided on the top and bottom of the housing 2 in a state where the fixed wrap 7 is engaged with the turning wrap 5.
  • the upper fixed scroll 4 is fixed to the upper surface of the upper flange 10 of the housing 2 in such a manner that the outer peripheral portion of the end plate 20 is overlapped, and is detachably fixed by a screw 35 (FIG. 1).
  • the lower fixed scroll 4 is fixed to the lower surface of the lower flange 10 of the housing 2 so that the outer peripheral portion of the end plate 20 is overlapped, and is detachably fixed by a screw 35 (FIG. 2).
  • each of the pair of fixed scrolls 4 is provided with a first opening 36 on the outer peripheral side and a second opening 37 in the center.
  • the second openings 37 shown above and below may be communicated with each other by making a through hole in the center of the substrate portion 12 of the orbiting scroll 3.
  • the drive crankshaft 18X is given a rotational driving force from its extension 18a (that is, power is input).
  • an output shaft of a motor (not shown) is directly connected to the extending portion 18a of the drive crankshaft 18X, that is, connected via a coupling.
  • the motor is provided at a position that does not obstruct the attachment / detachment of the fixed scroll 4 to / from the housing 2.
  • the drive crankshaft 18X When the scroll fluid machine 1 is used as a compressor or a blower, the drive crankshaft 18X may be rotated. Thereby, the turning scroll 3 can be turned with respect to the fixed scroll 4. At this time, it is sufficient to apply the rotational driving force to only one of the three crankshafts 18 (that is, the driving crankshaft 18X), and it is necessary to apply the rotational driving force to the remaining two (that is, the driven crankshaft 18Y). Absent.
  • the orbiting scroll 3 When the orbiting scroll 3 is revolved with respect to the fixed scroll 4, the fluid is sucked from the first opening 36, and the fluid is compressed between the orbiting wrap 5 and the fixed wrap 7, while the inner end from the outer end side of the spiral. It can be moved to the side and discharged from the second opening 37.
  • the orbiting scroll 3 is rotated by the fluid, and a rotational driving force is applied to the drive crankshaft 18X (that is, power is output).
  • the input shaft of the driven machine (machine driven by the expander) is directly connected to the extending portion 18a of the drive crankshaft 18X, that is, connected via a coupling.
  • the driven machine is provided at a position that does not hinder attachment / detachment of the fixed scroll 4 to / from the housing 2.
  • the fluid When using the scroll fluid machine 1 as an expander, the fluid may be allowed to flow from the second opening 37. Thereby, the orbiting scroll 3 can be swung by the force of the fluid and discharged from the first opening 36 while expanding. Further, the rotational driving force of the orbiting scroll 3 can be taken out from the drive crankshaft 18X.
  • the scroll fluid machine 1 of the present embodiment may be used by rotating the drive crankshaft 18X in the reverse direction by a motor, sucking fluid from the second opening 37, and discharging it to the first opening 36. .
  • the scroll fluid machine 1 of the present embodiment can be used as a compressor, an expander, a blower, a vacuum pump, or the like.
  • the fluid to be compressed or expanded is not particularly limited, and can correspond to various fluids such as air, steam, and refrigerant.
  • the orbiting scroll 3 has the orbiting wrap 5 disposed in the housing hole 6 of the housing 2 and is rotatably held in the housing 2 outside the housing hole 6.
  • the fixed scroll 4 is detachably provided on the flange 10 of the receiving hole 6 so that the fixed wrap 7 is disposed in the receiving hole 6 of the housing 2 and the receiving hole 6 of the housing 2 is closed.
  • the end plate 20 of the fixed scroll 4 is also accommodated in the accommodation hole 6, so that a compact configuration can be achieved.
  • a rotational driving force is applied to only one of the crankshafts 18 installed at three locations in the circumferential direction of the housing 2.
  • No synchronization mechanism is required. Since there is no rotation synchronization mechanism, there is no member that obstructs the attachment / detachment of the fixed scroll 4 to / from the accommodation hole 6 of the housing 2, and the attachment / detachment of the fixed scroll 4 to / from the housing 2 is easy.
  • the fixed scroll 4 can be easily detached from the housing 2 as shown in FIG. 4 without disassembling the bearing portion of the orbiting scroll 3 with respect to the housing 2.
  • the tip seal 21 of the swirl wrap 5, the tip seal 32 of the fixed wrap 7, and the external seal 34 of the outer peripheral wrap 33 can be easily replaced.
  • the fixed scroll 4 can be attached to and detached from the housing 2, but the orbiting scroll main body 14 can be attached to and detached from the orbiting scroll base 13.
  • the upper and lower bearing portions of the housing 2 require some disassembly in the illustrated example, the upper and lower orbiting scroll bodies 14 can be removed from the orbiting scroll base 13. Therefore, the upper and lower orbiting scroll main bodies 14 can be handled individually, and when the orbiting wrap 5 is defective, it is possible to replace the upper and lower orbiting scroll main bodies 14 in units of one sheet (that is, only one side of the upper and lower orbiting scroll main bodies 14).
  • the orbiting scroll base 13 and the orbiting scroll main body 14 are configured separately, the orbiting scroll base 13 and the orbiting scroll main body 14 are integrally formed. Compared to the case, the size during the surface treatment can be reduced, and the cost can be reduced.
  • the orbiting scroll main body 14 can be attached to and detached from the orbiting scroll base 13 through the housing hole 6 of the housing 2.
  • the outer diameter of the end plate 17 of the orbiting scroll body 14 is formed smaller than the inner diameter of the housing hole 6 of the housing 2 and further the inner diameter of the flange 10 of the housing hole 6. Therefore, after removing the fixed scroll 4 from the housing 2, the orbiting scroll body 14 can be further removed from the orbiting scroll base 13.
  • the work can be performed through the housing hole 6 of the housing 2, and the workability is further improved because the bearing portion is not attached or detached.
  • 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 orbiting wrap 5 is accommodated in the accommodation hole 6 of the housing 2 so that the orbiting wrap 5 can be pivoted, and the orbiting scroll 3 is held in the housing 2 so as to be pivotable.
  • other configurations can be changed as appropriate as long as they are detachably provided.
  • any one or more of the tip seal 21 of the turning wrap 5, the tip seal 32 of the fixed wrap 7, and the outer seal 34 of the outer peripheral wrap 33 may be omitted.
  • the fixed scroll 4 can be easily attached to and detached from the housing 2, the internal maintenance can be easily performed. Therefore, it is possible to easily carry out surface treatment of parts, correspondence to materials, elimination of foreign matter biting, internal cleaning, and the like.
  • the housing 2 is circular in plan view, but is not limited thereto, and may be triangular or other polygonal shapes.
  • the flange 10 was provided in the accommodation hole 6 of the housing 2, and the outer peripheral part of the end plate 20 of the fixed scroll 4 was piled up and attached to the flange 10, installation of the flange 10 is abbreviate
  • the outer peripheral portion of the end plate 20 of the fixed scroll 4 may be attached to the upper and lower surfaces of the housing 2 (the upper surface of the upper wall and the lower surface of the lower wall).
  • the fixed scroll 4 may be configured to be detachable with respect to the housing 2 using screws or the like.
  • the number of crankshafts 18 is three, but may be four or more. In that case, it is preferable that only one of them is the drive crankshaft 18X and the rest is the driven crankshaft 18Y.
  • the drive crankshaft 18X and the driven crankshaft 18Y may have the same configuration, and parts may be shared.
  • a configuration similar to that of the drive crankshaft 18X may be adopted as the driven crankshaft 18Y. Even in this case, a rotational driving force is applied only to the drive crankshaft 18X. In short, it is sufficient that at least three crankshafts 18 are provided, and only one of them is given a rotational driving force.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
PCT/JP2014/082241 2013-12-26 2014-12-05 スクロール流体機械 WO2015098467A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020167005749A KR102260104B1 (ko) 2013-12-26 2014-12-05 스크롤 유체 기계
CN201480054054.4A CN105612351B (zh) 2013-12-26 2014-12-05 涡旋流体机械

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013268502A JP5958769B2 (ja) 2013-12-26 2013-12-26 スクロール流体機械
JP2013-268502 2013-12-26

Publications (1)

Publication Number Publication Date
WO2015098467A1 true WO2015098467A1 (ja) 2015-07-02

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JP6729158B2 (ja) * 2016-08-10 2020-07-22 三浦工業株式会社 スクロール流体機械
US10280922B2 (en) 2017-02-06 2019-05-07 Emerson Climate Technologies, Inc. Scroll compressor with axial flux motor
US10215174B2 (en) * 2017-02-06 2019-02-26 Emerson Climate Technologies, Inc. Co-rotating compressor with multiple compression mechanisms
US10995754B2 (en) 2017-02-06 2021-05-04 Emerson Climate Technologies, Inc. Co-rotating compressor
US11111921B2 (en) 2017-02-06 2021-09-07 Emerson Climate Technologies, Inc. Co-rotating compressor
US10465954B2 (en) 2017-02-06 2019-11-05 Emerson Climate Technologies, Inc. Co-rotating compressor with multiple compression mechanisms and system having same
CN114729637A (zh) 2019-11-15 2022-07-08 艾默生环境优化技术有限公司 共旋转的涡旋式压缩机
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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JPS5776202A (en) * 1980-10-30 1982-05-13 Ebara Corp Scroll type machine
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JP2002021754A (ja) * 2000-07-10 2002-01-23 Mineo Takahashi スクロール圧縮機
JP2002039079A (ja) * 2000-07-24 2002-02-06 Anest Iwata Corp スクロール流体機械、その組立方法およびその同期方法
JP2006183561A (ja) * 2004-12-27 2006-07-13 Anest Iwata Corp ダブルラップスクロール流体機械
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JP2012188990A (ja) * 2011-03-10 2012-10-04 Yanmar Co Ltd スクロール型流体機械

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KR20160102151A (ko) 2016-08-29
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JP5958769B2 (ja) 2016-08-02
CN105612351A (zh) 2016-05-25
KR102260104B1 (ko) 2021-06-03

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