CN107725361B

CN107725361B - Convolute-hydrodynamic mechanics

Info

Publication number: CN107725361B
Application number: CN201710406077.2A
Authority: CN
Inventors: 笹尾智浩; 冈本裕介; 露口勇辅
Original assignee: Miura Co Ltd
Current assignee: Miura Co Ltd
Priority date: 2016-08-10
Filing date: 2017-06-01
Publication date: 2019-03-26
Anticipated expiration: 2037-06-01
Also published as: TWI626378B; KR101909008B1; TW201805532A; KR20180018289A; JP6729158B2; CN107725361A; JP2018025146A

Abstract

The present invention provides convolute-hydrodynamic mechanics.In the convolute-hydrodynamic mechanics that the position of side more outer than convolution scroll body links multiple crankshafts, the scroll that can make to circle round is provided and minimizes and can be improved the structure of maintainability.Convolute-hydrodynamic mechanics have: fixed scroll, and the plate face of affixed side baseplate part is provided with gyrate fixed scroll body；Convolution scroll main body is provided with the gyrate convolution scroll body engaged with fixed scroll body in the plate face of convolution side baseplate part, and is provided with the multiple notch extended from the inside of the end face of the peripheral part of convolution side baseplate part radially；Circle round scroll pedestal, by the fixed convolution scroll main body of the bolt of insert peripheral part, also, multiple bearing portions that the inside of notch is entered in the state of securing convolution scroll main body is correspondingly provided with notch；And multiple crankshafts, they are provided with the core shift axle portion being inserted into towards bearing portion.

Description

Convolute-hydrodynamic mechanics

Technical field

The present invention relates to the convolute-hydrodynamic mechanics used as compressor, expanding machine or air blower etc..

Background technique

In the past, in convolute-hydrodynamic mechanics, it is known that the part that the ratio in convolution scroll is equipped with convolution scroll body is leaned on The peripheral part in outside links the construction of multiple crankshafts.As the document of this convolute-hydrodynamic mechanics is disclosed, there is patent text Offer 1 and patent document 2.In patent document 1, it describes and links 2 in the side of the peripheral part of convolution scroll and the other side The construction of crankshaft, in patent document 2, the peripheral part described in convolution scroll circumferentially link the constructions of 3 crankshafts.

Citation

Patent document

Patent document 1: Japanese Unexamined Patent Publication 2004-36591 bulletin

Patent document 2: Japanese Unexamined Patent Publication 2003-120552 bulletin

Summary of the invention

Subject to be solved by the invention

In the construction of the position connection crankshaft of side more outer than convolution scroll body, need in the peripheral side of convolution scroll body Ensure to link the space of crankshaft, therefore, the outer diameter of convolution scroll entirety becomes larger, and weight also will increase.If scroll of circling round becomes Greatly, then correspondingly, the exterior (shell) of convolute-hydrodynamic mechanics also can enlargement.It is reducing manufacturing cost and is ensuring to be arranged Space this aspect, it is expected that the miniaturization of convolute-hydrodynamic mechanics.In addition, in order to carry out the convolution scroll body of convolution scroll It safeguards (such as replacement etc. of sheet packing (tip seal)), needs to carry out by the connection solution of crankshaft and convolution scroll entirety The operation removed, in efficient activity this aspect of upkeep operation, there is also rooms for improvement.

It is an object of the present invention to link the scroll fluid of multiple crankshafts in the position of side more outer than convolution scroll body In machinery, the scroll that can make to circle round is provided and minimizes and can be improved the structure of maintainability.

Means for solving the problems

The present invention relates to a kind of convolute-hydrodynamic mechanics, wherein the convolute-hydrodynamic mechanics have: fixed scroll, It is provided with gyrate fixed scroll body in the plate face of affixed side baseplate part；Convolution scroll main body, in convolution side group plate The plate face in portion is provided with the gyrate convolution scroll body engaged with the fixed scroll body, also, is provided with from the convolution Multiple notch that the inside of the end face of the peripheral part of side baseplate part radially extends；Circle round scroll pedestal, by insert The fixed convolution scroll main body of the fastening member of the peripheral part, also, be correspondingly provided with the notch solid Determined it is described convolution scroll main body in the state of enter the notch inside multiple bearing portions；And multiple songs Axis, they are provided with the core shift axle portion being inserted into towards the bearing portion.

Preferably, in convolution side baseplate part, circumferentially spaced to be positioned apart from multiple projecting pieces, the projecting piece Outside radially is extended and is inserted for the fastening member, is provided with described in storage and stretches in the convolution scroll pedestal The recess portion of slice, the cutting part is between the adjacent projecting piece.

Preferably, the convolution scroll main body is provided with the convolution scrollwork on the two sides of the convolution side baseplate part Body, a pair of fixed scroll are set to the two sides of the convolution side baseplate part, and the convolution scroll pedestal is configured to, energy It is enough to dismount the convolution scroll main body from single side relative to the hole being arranged in the central portion.

Invention effect

According to the present invention, the convolute-hydrodynamic mechanics of multiple crankshafts are linked in the position of side more outer than convolution scroll body In, it can be achieved that can make to circle round scroll miniaturization and can be improved the structure of maintainability.

Detailed description of the invention

Fig. 1 is the figure for showing the one side of convolute-hydrodynamic mechanics of one embodiment of the present invention.

Fig. 2 is the II-II cross-sectional view in Fig. 1.

Fig. 3 is the exploded perspective view of the convolution scroll of the convolute-hydrodynamic mechanics of Fig. 1.

Fig. 4 is the enlarged drawing of the left part of Fig. 2.

Fig. 5 is the top view for schematically showing the convolution scroll main body for being fixed on convolution scroll pedestal.

Description of symbols:

1 convolute-hydrodynamic mechanics；

3 crankshafts；

5 fixed scrolls；

6 convolution scroll bodies；

8 core shift axle portions；

16 convolution side baseplate parts；

17 convolution scroll main bodys；

18 convolution scroll pedestals；

19 receiving openings (hole)；

20 affixed side baseplate parts；

22 projecting pieces；

26 recess portions；

28 bolts (fastening member)；

50 fixed scroll bodies；

70 peripheral parts；

71 notch；

80 bearing portions.

Specific embodiment

Hereinafter, being illustrated referring to attached drawing to the preferred embodiment of the present invention.Fig. 1 shows convolute-hydrodynamic mechanics The figure of one side (such as side view on the bottom view or left and right directions in up and down direction).Fig. 2 is that the II-II in Fig. 1 is cutd open View, Fig. 3 are the exploded perspective views of convolution scroll 2, and Fig. 4 is the enlarged drawing of the left part of Fig. 2.Fig. 5 is to schematically show It is fixed on the top view of the convolution scroll main body 17 of convolution scroll pedestal 18.

In the following description, by the thickness direction of convolute-hydrodynamic mechanics and parallel with the direction of 3 directions of crankshaft Direction is illustrated as " axial direction ".The axial direction is that Fig. 2 (is its left-half strictly speaking due to being II-II cross-sectional view Or right half part) in up and down direction.In order to be illustrated, axial side is set as upside sometimes and will be axial another Side is set as downside etc. to show up and down, but is not intended to the posture for limiting convolute-hydrodynamic mechanics 1.It when in use, can be with song Axis 3 configures convolute-hydrodynamic mechanics 1 along the mode in direction, such as left and right directions other than up and down direction.

1 main composition of convolute-hydrodynamic mechanics of present embodiment is to have: shell 4 is held in the shell with being able to maneuver The convolution scroll 2 of body 4 is fixed on a pair of of fixed scroll 5 of shell 4 in a manner of clipping convolution scroll 2, makes whirlpool of circling round Multiple crankshafts 3 that rotating part 2 circles round and the rotating synchro structure 45 for keeping the rotation of multiple crankshafts 3 synchronous.

<shell>

In the present embodiment, the box-like that shell 4 is formed as a generally rectangular is overlooked at central portion, by scroll 2 of circling round The storage of convolution scroll body 6 be formed through for the reception hole 7 that is able to maneuver along axial direction (up and down direction in Fig. 2).In shell 4 In, the axis of crankshaft 3 and reception hole 7 is set in parallel at the circumferential multiple positions for surrounding reception hole 7, also, the crankshaft 3 The storage space 9 of core shift axle portion 8 be connected to via opening portion 10 with reception hole 7.

The shell 4 of present embodiment has substantially rectangular flat first outside plate 11 and the second outside plate 12, outside these Plate is formed as mutual corresponding size.First outside plate 11 and the second outside plate 12 are in the axial direction separately and arranged opposite in parallel, outside End edge is connected each other by connecting plate 13 appropriate.As shown in Fig. 2, in being axially facing crankshaft 3 up and down direction and configure whirlpool In the case where rotary fluid machinery 1, the first outside plate 11 becomes upper plate, and the second outside plate 12 becomes lower plate.In addition, by crankshaft 3 Left and right directions is axially facing in the case where configuring convolute-hydrodynamic mechanics 1, the first outside plate 11 and the second outside plate 12 become side Plate.Equally, connecting plate 13 becomes side plate in the case where placing convolute-hydrodynamic mechanics 1 along the vertical direction, in left-right direction Become upper plate or lower plate etc. in the case where placing convolute-hydrodynamic mechanics 1.

In the corresponding position of the first outside plate 11 and the second outside plate 12, open pore 7A is formed through as reception hole 7 Opening portion.The opening portion of reception hole 7 could also say that the opening portion of the hollow portion in shell 4.The open pore of first outside plate 11 The open pore 7A of 7A and the second outside plate 12 becomes the circular hole with same size.In the example shown in Fig. 2, the open pore of top The peripheral wall of 7A protrudes downward compared with the lower surface of the first outside plate 11, the peripheral wall of the open pore 7A of lower section and the second outside plate 12 It compares and protrudes upward in upper surface.

Circular flange 15 is formed in the bottom of each open pore 7A.Specifically, opening in axial side (top) The end (lower end) of the inside of the peripheral wall of oral pore 7A is provided with flange 15, another party in such a way that radially inside is extended Prolonged in the end (upper end) of the inside of the peripheral wall of the open pore 7A of the thickness direction other side (lower section) with radially inside in face The mode of stretching is provided with flange 15.Each flange 15 of ratio in shell 4 is formed with cricoid hollow by the position of radial outside Portion, the hollow portion become the storage space 9 of the core shift axle portion 8 of crankshaft 3.Moreover, the storage space 9 is via between a pair of flanges 15 Opening portion 10 circumferentially continuously towards reception hole 7 (hypothetically connect two sides (upper and lower) open pore 7A and its between made of Blank part) opening.

It should be noted that for the first outside plate 11 and the second outside plate 12, can as the front and back of Fig. 1 end edge (in other words Say the right side of Fig. 2) lower surface of the first outside plate 11 and the upper surface of the second outside plate 12 are connected by connecting plate 13 like that, it can also End face to connect the first outside plate 11 the end edge (the in other words left side of Fig. 2) such as the left and right of Fig. 1 by connecting plate 13 With the end face of the second outside plate 12.In addition, the first outside plate can be arranged in each connecting plate 13 as the connecting plate 13 on the right side of Fig. 1 11 and second outside plate 12 end edge whole region, can also be arranged in outside first as the connecting plate 13 in the left side of Fig. 1 A part of the end edge of plate 11 and the second outside plate 12.Each plate 11~13 is assembled in a detachable manner using bolt 14, by This, such as the first outside plate 11 can be unloaded relative to each connecting plate 13.It should be noted that being not limited to word as bolt 14 Various screws also can be used in bolt on face, and about this point, other aftermentioned bolts are also the same.

As shown in FIG. 2 and 3, convolution 2 main composition of scroll is to have: having convolution side baseplate part 16 and convolution whirlpool The convolution scroll main body 17 of scroll 6 and the convolution scroll pedestal 18 linked for crankshaft 3.

Convolution scroll main body 17 is configured to, in a detachable manner from the single side (drawing of convolution scroll pedestal 18 The face of upside) it is installed on the receiving opening 19 formed in central portion.Scroll main body 17 of circling round is in disk-shaped convolution side baseplate part 16 two sides (upper surface and lower surface) are respectively arranged with convolution scroll body 6.

Convolution scroll body 6 is the plate vertically extended from the plate face of convolution side baseplate part 16, and is configured to from convolution side The central portion of baseplate part 16 is bent towards peripheral part 70 in the swirl shape of involute.In the one side of convolution side baseplate part 16 The convolution scroll body 6 of (upper surface) setting is towards axial side (top), in the convolution whirlpool of another side (lower surface) setting For scroll 6 towards the axial other side (lower section), the convolution scroll body 6 of upper and lower (two sides) is mutual with shape, size and configuration Corresponding mode is formed.

In the front end of each convolution scroll body 6, it is provided with for filling between the affixed side baseplate part 20 of fixed scroll 5 Gap sheet packing 21.Sheet packing 21 is configured along the vortex of convolution scroll body 6.The sheet of present embodiment Sealing element 21 is embedded into the slot for being formed in the stretching front end extended from convolution side baseplate part 16 in convolution scroll body 6. In drawing, the upper end of the convolution scroll body 6 of upside, the lower end of the convolution scroll body 6 of downside, which become, stretches out front end.And And sheet packing 21 can be dismounted relative to convolution scroll body 6.It should be noted that piece is omitted in Fig. 3 and Fig. 5 The diagram of shape sealing element 21 and relative construction.

The peripheral part 70 of convolution side baseplate part 16 is provided with the multiple projecting pieces 22 extended in outside radially.It needs Illustrate, the peripheral part 70 of present embodiment is until being provided with convolution scroll body in the plate face than circling round side baseplate part 16 The region until the end face (near peripheral side) of radial outside is leaned in 6 part, becomes the part comprising outermost side radially Range inside.

Projecting piece 22 is provided with multiple at spaced intervals in the circumferential.In the present embodiment, a pair that will be configured adjacently Projecting piece 22 is set as one group, which has been equally spaced multiple in the circumferential.Specifically, a pair of of projecting piece 22 with three groups and 120 degree of intervals and the central portion of convolution side baseplate part 16 are integrally formed.In the present embodiment, projecting piece 22 constitutes peripheral part 70 A part.It should be noted that the shape of convolution side baseplate part 16 can be suitably changed, projecting piece 22 can be omitted and be set as Circle, polygon etc..In this case, peripheral part also becomes until the part than being provided with convolution scroll body is by radial outside Region until end face (near peripheral side).

Each projecting piece 22 of present embodiment is formed as the one side (upper surface) of thickness direction from convolution side baseplate part 16 The continuous plate in center.As illustrated at the right side of figure 2, projecting piece 22 is formed as central portion of its thickness than the side baseplate part 16 that circles round It is slightly thin.

In the peripheral part 70 of convolution side baseplate part 16, it is provided with and the bearing portion 80 of aftermentioned convolution scroll pedestal 18 The notch 71 of the corresponding shape of shape.Notch 71 equally spaced configures in the circumferential, and radially from the end face in outside Inside is shaped generally as arc-shaped.In the present embodiment, it is formed with and cuts between a pair of of the projecting piece 22 for constituting peripheral part 70 Oral area 71.

As shown in figure 3, two bolt insertion holes 23 are in a manner of along convolution being circumferentially separated of side baseplate part 16 respectively along upper Lower perforation it is formed in the plate face of each projecting piece 22.In addition, being opposed to convolution the approximately radial of side baseplate part 16, stretched at two Slice 22 is also formed with the pin hole 25 for the insertion of aftermentioned locking pin 24.

Convolution scroll pedestal 18 is formed through the convolution side baseplate part for receiving convolution scroll main body 17 in central portion 16 receiving opening 19, global shape is annular in shape.In the peripheral part of convolution scroll pedestal 18, circumferentially, equally spaced it is configured with Link the bearing portion 80 of crankshaft 3.Bearing hole 33 is formed through in each bearing portion 80.Each bearing hole 33 becomes top and configures major diameter The stepped hole of hole 33a and lower part configuration diameter holes 33b.It should be noted that bearing portion 80 may also be referred to as surrounding bearing hole Caliper portion around 33.

The convolution scroll pedestal 18 of present embodiment is formed as the roughly triangular shape being chamfered under vertical view, thirdly A corner is configured with bearing portion 80.It should be noted that convolution scroll pedestal 18 shape be not limited under vertical view be in Roughly triangular shape, it is substantially circular etc. for can also suitably changing.

Around the receiving opening 19 of convolution scroll pedestal 18 (inner peripheral portion), the stretching of convolution scroll main body 17 is received The recess portion 26 of piece 22 is set to the circumferential two sides of each bearing portion 80.Recess portion 26 is by cutting away receiving opening from the side of thickness direction 19 internal perisporium and formed, and in such a way that its bottom surface is located at the axial central portion of receiving opening 19 towards the side of thickness direction (on Side) opening.

In the bottom surface of each recess portion 26, it is formed with and is inserted with the bolt formed on the projecting piece 22 of convolution scroll main body 17 The corresponding threaded hole 27 in hole 23.In addition, the position at approximately radial opposed two with receiving opening 19, locking pin 24 is from bottom surface court Axial side is provided projectingly on the bottom surface of recess portion 26.

In addition, as shown in Fig. 2, in three corners of convolution scroll pedestal 18, for the scroll pedestal that will circle round respectively 18 are held in the core shift axle portion 8 of crankshaft 3 and are provided with convolution bearing 29.It (more specifically prevents from moistening from protection convolution bearing 29 Lubrication prescription is used up) from the perspective of, it is preferably prevented from the heat transfer from convolution scroll main body 17 to convolution scroll pedestal 18.In this reality It applies in mode and is configured to, the internal diameter of receiving opening 19 is sized greatly than the outer diameter for the side baseplate part 16 that circles round.It is vortexed as a result, in convolution The receiving opening 19 of part pedestal 18 be embedded in convolution scroll main body 17 in the state of, convolution side baseplate part 16 outer peripheral surface with connect Receive hole 19 inner peripheral surface between be formed with gap, can prevent from convolution scroll main body 17 to convolution scroll pedestal 18 biography Heat.

The configuration of fixed scroll 5 is in the axial two sides (upper and lower in Fig. 2) of convolution scroll 2.Each fixed scroll 5 exists The fixed scroll body of one or more plates is vertically arranged with the plate face for the single side of disk-shaped affixed side baseplate part 20 50.In Fig. 2, the fixed scroll 5 of upside is provided with downward fixed scroll body in the lower surface of affixed side baseplate part 20 50, the fixed scroll 5 of downside is provided with upward fixed scroll body 50 in the upper surface of affixed side baseplate part 20.

Fixed scroll body 50 is set as number corresponding with convolution scroll body 6, shape and size, and is configured to from fixation The central portion of side baseplate part 20 is bent towards peripheral part in the swirl shape of involute.

In the front end of fixed scroll body 50, it is provided between the convolution side baseplate part 16 for the scroll 2 that fills and circle round Gap sheet packing 51.Sheet packing 51 is configured along the vortex of fixed scroll body 50.The piece of present embodiment Shape sealing element 51 is embedded into the slot for the stretching front end that the slave affixed side baseplate part 20 being formed in fixed scroll body 50 extends In.In drawing, the lower end of the fixed scroll body 50 of the fixed scroll 5 of upside, the fixed scroll 5 of downside fixation whirlpool The upper end of scroll 50, which becomes, stretches out front end.Moreover, sheet packing 51 can be dismounted relative to fixed scroll body 50.

In each fixed scroll 5, cylindric periphery scroll body 52 is provided in a manner of surrounding fixed scroll body 50.? In the drawing of Fig. 2, the fixed scroll 5 of upside is provided with downward periphery scroll body in the lower surface of affixed side baseplate part 20 52, the fixed scroll 5 of downside is provided with upward periphery scroll body 52 in the upper surface of affixed side baseplate part 20.Periphery whirlpool The height (the stretching size extended from affixed side baseplate part 20) of scroll 52 and the height of fixed scroll body 50 are (from fixed side group The stretching size that plate portion 20 extends) it is generally corresponding to.

In periphery, the front end of scroll body 52 is provided with peripheral seal 52A, as returning for the scroll 2 that fills and circle round Revolve the dust seal in the gap between side baseplate part 16.One or more peripheral seal 52A are along periphery scroll body 52 It is arranged circumferentially.

The peripheral seal 52A of present embodiment is embedded into the slave affixed side baseplate part 20 being formed in periphery scroll body 52 In the slot for the stretching front end extended.In drawing, the lower end of the periphery scroll body 52 of the fixed scroll 5 of upside, under The upper end of the periphery scroll body 52 of the fixed scroll 5 of side, which becomes, stretches out front end.Moreover, peripheral seal 52A is configured to It can be dismounted relative to periphery scroll body 52.

Each fixed scroll 5 is in the state of engaging fixed scroll body 50 with convolution scroll body 6, with the side that can be dismounted Formula is set to the upper and lower of shell 4.Specifically, the peripheral part of the fixed scroll 5 of upside and affixed side baseplate part 20 is overlappingly It is fixed on the upper surface of the flange 15 of the upside of shell 4 in a detachable manner by bolt 53.In addition, the fixation whirlpool of downside The peripheral part of rotating part 5 and affixed side baseplate part 20 is overlappingly fixed under shell 4 by bolt 53 in a detachable manner The lower surface of the flange 15 of side.It should be noted that multiple positions in the circumferential direction of the flange 15 of shell 4 are provided with locking pin 55, which is embedded in the pin hole in the setting of affixed side baseplate part 20 of fixed scroll 5, so that scroll be fixed 5 relative to the positioning in the circumferential direction of shell 4.

As shown in Figure 1 and Figure 2, the peripheral side of a pair of of fixed scroll 5 is provided with the first opening 60, another party respectively Face is provided with the second opening 61 in the central portion of a pair of of fixed scroll 5 respectively.It should be noted that first opening 60 with And second opening member 62,63 that is equipped with tubulose of opening 61.In addition, in Fig. 2, the second opening 61 for vertically showing can also be with According to circumstances it is interconnected in a manner of separating through hole with the center of the convolution side baseplate part 16 of convolution scroll 2.

Crankshaft 3 is arranged at position at two in the peripheral part of convolution scroll 2 (convolution scroll pedestal 18), preferably sets It sets at three more than position.In the present embodiment, crankshaft 3 is arranged in the circumferential at equal intervals in the peripheral part of convolution scroll 2 Three at position.

As shown in Figure 1, crankshaft 3 is equally spaced the position at three along the circumferential direction of shell 4, it is in the present embodiment phase Same construction.In addition, as shown in Fig. 2, each crankshaft 3 configures in such a way that its axis is along up and down direction.Each crankshaft 3 is set as, The hollow portion of shell 4 is vertically penetrated through in drawing.

As shown in Fig. 2 (especially left side) and Fig. 4, the core shift axle portion 8 of each crankshaft 3 be eccentrically arranged in be configured at it is same Between main shaft part 34,35 on axis.In the present embodiment, the main shaft part 35 of downside is with contracting downward and periodically Diameter is divided into large-diameter portion 35a, central diameter portion 35b and small diameter portion 35c.In addition, being concentrically formed in the lower end of core shift axle portion 8 Wide diameter portion 8a.

Each crankshaft 3 is provided with Weight balancer 49, to realize the smoothly rotation of convolution scroll 2.In this embodiment party In formula, weight is respectively arranged in the upper end of the large-diameter portion 35a of the main shaft part 35 of the lower end and downside of the main shaft part 34 of upside Measure balancer 49.

Each crankshaft 3 is held in shell 4 in the main shaft part 34,35 for clipping the two sides of core shift axle portion 8 in a way freely spinning way The first outside plate 11 and the second outside plate 12.In the present embodiment, the main shaft part 34 of top is rotated via first bearing 36 It is held in the first outside plate 11 of shell 4 freely, the central diameter portion 35b of the main shaft part 35 of lower section rotates certainly via second bearing 37 Such as it is held in the second outside plate 12 of shell 4.

In the main shaft part 34,35 of the two sides for clipping core shift axle portion 8 of each crankshaft 3, in the main shaft part (in Fig. 2 of a side The main shaft part of lower section) 35 axial middle part is provided with first step portion 3a.The main shaft part 35 of lower section in drawing as it is above-mentioned that Sample is formed as that ladder is rodlike, and the stepped portion (lower surface of large-diameter portion 35a) of large-diameter portion 35a and central diameter portion 35b become First Rank portion 3a.The upper surface of the inner ring of second bearing 37 is abutted with first step portion 3a.

On each crankshaft 3, the axial side end (lower end in Fig. 2) in core shift axle portion 8 is provided with second Rank portion 3b.As described above, wide diameter portion 8a is provided in the lower end of core shift axle portion 8, with the stepped portion between wide diameter portion 8a (upper surface of wide diameter portion 8a) becomes second step portion 3b.The lower end surface of the inner ring of convolution bearing 29 is supported with second step portion 3b It connects.It should be noted that the convolution bearing 29 for being set to core shift axle portion 8 can be multiple to be individually or multiple In the case of, the lower end surface for being configured at the inner ring of the convolution bearing 29 near lower section is abutted with second step portion 3b.Shown in drawing Example in, core shift axle portion 8 vertically overlappingly setting there are two circle round bearing 29.

In the first outside plate 11 and the second outside plate 12 of shell 4, in circumferential direction corresponding with the setting position of crankshaft 3 three Place position is formed with shaft mounting hole 38,39 with vertically penetrating through.The shaft mounting hole 38 of first outside plate 11 of shell 4 is formed as ladder Shape hole is formed with diameter holes 38a in lower section, is formed with large diameter hole 38b above.The shaft mounting hole of second outside plate 12 of shell 4 39 are again formed as stepped hole, are formed with diameter holes 39a above, are formed with large diameter hole 39b in lower section.

In the present embodiment, first bearing 36 and second bearing 37 are made of rolling bearing.Known rolling bearing It is configured to, along its circumferential array maintains multiple rollings between the substantially cylindric inner ring and outer ring for being configured to concentric circles Kinetoplast.The inner ring and outer ring of rolling bearing is rotated freely via rolling element as a result,.It should be noted that being set to torque-transmitting axle Each convolution bearing 29 in portion 8 also uses structure same as first bearing 36 and second bearing 37 in the present embodiment.

The fixation of second bearing 37 towards the second outside plate 12 of shell 4 carries out as follows.That is, to large diameter hole 39b indentation the The outer ring of two bearings 37, until the upper surface of outer ring is connected to the diameter holes 39a and major diameter of the shaft mounting hole 39 of the second outside plate 12 Until the stepped portion (upper surface of large diameter hole 39b) of hole 39b.Then, circular fixed ring 40 is overlapped using bolt 41 Ground is fixed on the lower surface of the second outside plate 12.Second bearing 37 sandwiches the stepped portion of shaft mounting hole 39 with outer ring and consolidates as a result, The mode determined between ring 40 is fixed.

There is the central diameter portion 35b of the main shaft part 35 of lower section in the inner ring indentation of second bearing 37.That is, into second bearing 37 The central diameter portion 35b of circle indentation main shaft part 35, until the upper surface of the inner ring of second bearing 37 is connected to first step portion 3a. Moreover, the lower end of central diameter portion 35b becomes threaded portion, therefore the first fixture nut 42 is screwed into the threaded portion.Second axis as a result, 37 are held to be fixed in the mode that inner ring sandwiches between first step portion 3a and fixture nut 42.

The fixation of first bearing 36 towards the first outside plate 11 of shell 4 carries out as follows.That is, being embedded in axis to large diameter hole 38b Shell 43 is held, until the flange lower end surface that the outer ring of first bearing 36 is held in bearing case 43 and bearing case 43 is connected to the Until the upper surface of one outside plate 11.Then, the flange of bearing case 43 is fixed on to the upper table of the first outside plate 11 using bolt 44 Face.On the other hand, to the main shaft part 34 of the inner ring of first bearing 36 indentation top.

Three crankshafts 3 obtain the position (in other words obtaining phase) of core shift axle portion 8, and by rotating synchro structure 45 into Row synchronous rotary.Gear can be used in rotating synchro structure 45, but uses synchronous belt 46 in the present embodiment.

Main shaft part 35 (small diameter portion 35c) of the rotating synchro structure 45 of present embodiment in the lower section of each crankshaft 3 is fixed with Toothed belt 47, synchronous belt 46 are winded between these toothed belts 47.At this point, as shown in Figure 1, synchronous belt 46 is also hooked in tension Roller 48 can adjust of synchronous belt 46 by adjusting the position (the radial position relative to reception hole 7) of jockey pulley 48 Power.

It should be noted that one (crankshaft of bottom right in Fig. 1 of present embodiment) in three crankshafts 3 becomes from outside Input supplies power the driving crankshaft 3A of (or being output to the outside recycling power), and remaining two this defeated as not carrying out directly Enter the slave dynamic crankshaft 3B of (or output).

An example of the assembling operation of the convolute-hydrodynamic mechanics 1 of present embodiment is illustrated.Firstly, illustrating whirlpool of circling round The connection of rotating part pedestal 18 and convolution scroll main body 17.To the insertion convolution scroll master of recess portion 26 of convolution scroll pedestal 18 The projecting piece 22 of body 17, and the convolution side group of the insertion convolution scroll main body 17 of receiving opening 19 to convolution scroll pedestal 18 Plate portion 16.Pass through the projecting piece 22 of the insertion convolution scroll main body 17 of locking pin 24 of the recess portion 26 to convolution scroll pedestal 18 Pin hole 25, thus carry out convolution scroll main body 17 relative to convolution scroll pedestal 18 circumferential direction on positioning.

As shown in figure 5, in the state of having carried out the positioning of convolution scroll pedestal 18 and scroll main body 17 of circling round, at For circle round scroll pedestal 18 bearing portion 80 enter convolution scroll main body 17 notch 71 inside state.Fig. 5 Shown in double dot dash line be the imaginary circular arc for linking the end face of a pair of of projecting piece 22, but a part of bearing portion 80 becomes association To positional relationship as the circular arc.In this state, it is inserted by the bolt of the projecting piece 22 to the two sides for sandwiching bearing portion 80 Through-hole 23 is inserted bolt 28 and is screwed togather with the threaded hole of recess portion 26 27.

In order to need to be used for as projecting piece 22 tight to the fixed convolution scroll main body 17 of convolution scroll pedestal 18 The space of fixing bolt 28 is formed in the peripheral part 70 of convolution side baseplate part 16.In the present embodiment, as sandwich convolution be vortexed The space of the bearing portion 80 of part pedestal 18 and between a pair of of projecting piece 22 formed notch 71, be achieved in will to convolution be vortexed The space of the connection convolution scroll main body 17 of part pedestal 18 is formed in the peripheral part 70 of convolution side baseplate part 16 and convolution is vortexed The bearing portion 80 of part pedestal 18 is configured at the layout of radial inside.In other words, convolution side baseplate part 16 peripheral part 70, with The mode of the track of the imaginary circle of circumferential fastening position is threaded through configured with bearing portion 80, it may also be said to be to avoid periphery The fastening position in portion 70 and be configured with notch 71.

Convolution scroll pedestal 18 can be separated with convolution scroll main body 17 if unloading bolt 28, therefore, will be returned Vortex rotating part main body 17 is fixed on convolution scroll pedestal 18 in a detachable manner.It should be noted that also can be omitted Locking pin 24 and pin hole 25.Next, convolution scroll 2 is installed on shell 4 in a manner of being able to maneuver to via crankshaft 3 Operation be illustrated.Firstly, installing second bearing 37 to the second outside plate 12.On the other hand, via convolution bearing 29 and after Each crankshaft 3 is installed on convolution scroll 2 by the force-applying piece 57 stated.It will convolution via the convolution bearing 29 for being installed on bearing hole 33 Scroll 2 is held in crankshaft 3.Convolution scroll 2 to the reception hole 7 of shell 4 be configured with convolution scroll body 6 in the state of, at For the state of the convolution side baseplate part 16 of configuration perpendicularly to the axis and the scroll pedestal 18 that circles round with reception hole 7.Convolution is vortexed Part pedestal 18 extends via the opening portion 10 between the flange 15 of shell 4 towards the outside of reception hole 7.Circle round scroll pedestal 18 Each bearing hole 33 become with the flange 15 of shell 4 compared with configuration radial outside positional relationship.

Next, being embedded in each crankshaft 3 of convolution scroll 2 to the second bearing 37 of the second outside plate 12 and being installed.This When, each crankshaft 3 is with the installation of defined posture.In the present embodiment, in the position consistency with core shift axle portion 8 without phase difference It is mounted under state.Then, when installing the first outside plate 11, first bearing 36 is configured between the first outside plate 11 and crankshaft 3.To The open pore 7A of first outside plate 11 and the second outside plate 12 is fixed with fixed scroll 5.

In this way, convolution scroll body 6 is configured at shell by convolution scroll 2 in the convolute-hydrodynamic mechanics 1 of present embodiment In the reception hole 7 of body 4, and shell 4 is being held in a manner of being able to maneuver than the position of reception hole 7 in the outer part.On the other hand, Fixed scroll body 50 is configured in the reception hole 7 of shell 4 by fixed scroll 5, and can removably be set to the convex of reception hole 7 Edge 15, so as to the reception hole 7 of closure shell 4.At this point, the affixed side baseplate part 20 of fixed scroll 5 is also accommodated in reception hole 7 Interior, thus, it is possible to form compact structure.

Next, explanation by the convolute-hydrodynamic mechanics 1 of present embodiment be used as compressor or air blower the case where and The case where as expander.

In the case where convolute-hydrodynamic mechanics 1 are compressor or air blower, make to drive crankshaft 3A rotation can (in other words Say input power).(in other words input power) is supplied power externally to driving crankshaft 3A imparting, concomitantly, is also passed through Make to rotate from dynamic crankshaft 3B by rotating synchro structure 45, and makes the convolution of scroll 2 of circling round.For example, the one of driving crankshaft 3A The main shaft part 35 of side is directly linked with the output shaft of motor (illustration omitted), is in other words connected with the defeated of motor via shaft coupling Shaft.

Thereby, it is possible to the scrolls 2 that makes to circle round relative to the convolution of fixed scroll 5.At this point, the confession supplied to driving crankshaft 3A It is also transferred to via rotating synchro structure 45 from dynamic crankshaft 3B to power, three crankshafts 3 synchronize rotation.It is vortexed when making to circle round It, can be from 60 sucking fluids of the first opening, and on one side in convolution scroll body 6 and fixed when part 2 circles round relative to fixed scroll 5 The fluid is compressed between scroll body 50, making the fluid from the outer end side of the vortex on one side, end side is mobile inwardly, thus from Second opening, 61 discharge.

<convolute-hydrodynamic mechanics as expanding machine>

In the case where convolute-hydrodynamic mechanics 1 are expanding machine, supplied fluid is utilized to make the convolution of scroll 2 of circling round (rotation), and each crankshaft 3 is rotated via rotating synchro structure 45, to assign recycling power (in other words to driving crankshaft 3A Say output power).Rotary driving force (in other words output power) is assigned to driving crankshaft 3A.For example, straight in driving crankshaft 3A It is had in succession by the input shaft of motivation (machinery for thering is expanding machine to drive), is in other words connected with via shaft coupling by the defeated of motivation Enter axis.

Moreover, under the action of the power of fluid, convolution scroll 2 is circled round when from the second 61 incoming fluid of opening, Fluid follows 60 discharge of the first opening while expanding.It is dynamic as recycling that thereby, it is possible to the rotary driving forces for the scroll 2 that will circle round Power is taken out from driving crankshaft 3A.It should be noted that at this point, bent with driving also via rotating synchro structure 45 from dynamic crankshaft 3B Axis 3A synchronous rotary.

In addition, the convolute-hydrodynamic mechanics 1 of present embodiment can also proceed as follows use: making to drive by motor Dynamic crankshaft 3A rotates in the opposite direction, and fluid is discharged from 61 sucking fluid of the second opening, and towards the first opening 60.

In this way, the convolute-hydrodynamic mechanics 1 of present embodiment can be used as compressor, expanding machine, air blower, vacuum pump Deng.It should be noted that the fluid for being used to compress or expand etc. is not particularly limited, air, steam, refrigerant can be corresponded to Etc. various fluids.

Embodiment from the description above, has the following effect.

That is, convolute-hydrodynamic mechanics 1 have: fixed scroll 5 is provided with vortex in the plate face of affixed side baseplate part 20 The fixed scroll body 50 of shape；Convolution scroll main body 17 is provided with and fixed scroll body in the plate face of convolution side baseplate part 16 The gyrate convolution scroll body 6 of 50 engagements, and be provided with from the end face of the peripheral part 70 of convolution side baseplate part 16 radially Inside extend multiple notch 71；Circle round scroll pedestal 18, by the fixed convolution of the bolt 28 of insert peripheral part 70 Scroll main body 17, also, be correspondingly provided with notch 71 and enter in the state of securing convolution scroll main body 17 To multiple bearing portions 80 of the inside of notch 71；And multiple crankshafts 3, they are provided with the torque-transmitting axle being inserted into towards bearing portion 80 Portion 8.

As a result, using the notch 71 of convolution scroll main body 17, the bearing portion 80 of convolution scroll pedestal 18 can be made Positioned at radial inside, therefore can the radial of the scroll pedestal 18 that circle round be sized to smaller, also can be realized interior Put back into the miniaturization of the shell 4 of vortex rotating part pedestal 18.

In addition, the bearing portion 80 of the convolution scroll 2 relative to shell 4 and the connection of crankshaft 3 will not be released, can be easy Ground unloads fixed scroll 5 from shell 4, therefore, can easily be done surface treatment or because of component caused by raw material more It changes, reprocess, the elimination that foreign matter is engaging-in, internal cleaning etc..For example, the sheet that can easily be done convolution scroll body 6 is close The replacement of the peripheral seal 52A of sealing 21, the sheet packing 51 of fixed scroll body 50 and periphery scroll body 52.

In addition, in the present embodiment, it is circumferentially spaced to be positioned apart from multiple projecting pieces in convolution side baseplate part 16 22, which extends and inserts for bolt 28, and convolution scroll pedestal 18 is provided with storage The recess portion 26 of projecting piece 22, notch 71 is between adjacent projecting piece 22.

Thereby, it is possible to ensure the space for fastening bolt 28 using projecting piece 22, while realizing to enter bearing portion 80 To the structure of the radial inside of convolution scroll main body 17.

In addition, also gap can be formed using between the outer peripheral surface of convolution side baseplate part 16 and the inner peripheral surface of receiving opening 19 Structure, additionally it is possible to realize prevent from convolution scroll main body 17 to convolution scroll pedestal 18 heat transfer structure.It is being formed It, depending on the situation, also can be with further radially notch 71 and the gap pair are cut in inside in the structure in gap The mode for the amount answered forms bearing portion 80.That is, the miniaturization for realizing the whole radial direction of convolution scroll 2 can be made while being protected Both structures of convolution bearing 29 are simultaneously deposited.

In addition, in the present embodiment, convolution scroll main body 17 is provided with convolution on the two sides of convolution side baseplate part 16 Scroll body 6, a pair of of fixed scroll 5 are set to the two sides of convolution side baseplate part 16, and convolution scroll pedestal 18 is configured to, can Convolution scroll main body 17 is dismounted from single side relative to the receiving opening 19 being arranged in the central portion.

Thereby, it is possible to by two sides be provided with convolution scroll body 6 convolution scroll main body 17 from convolution scroll pedestal 18 single side is dismounted quickly, and therefore, dismounting operation when maintenance becomes easy, and can shorten the activity duration.At this In embodiment, while it is desirable to several decomposition at the first bearing 36 of shell 4, but without point at convolution bearing 29 Solution, it will be able to unload convolution scroll main body 17 upward from convolution scroll pedestal 18.Therefore, same as fixed scroll 5 Ground also can easily be done the maintenance of convolution scroll main body 17.

In addition, the convolute-hydrodynamic mechanics 1 of present embodiment are also constituted as described below.

The convolute-hydrodynamic mechanics 1 of present embodiment have: convolution scroll 2 consists of, in convolution side baseplate part 16 Two sides be provided with it is gyrate convolution scroll body 6 convolution scroll main body 17 in a detachable manner from convolution scroll The single side of pedestal 18 is installed on the receiving opening 19 of central portion；A pair of of fixed scroll 5, is set as, in affixed side baseplate part 20 Single side be provided with gyrate fixed scroll body 50, engage the fixed scroll body 50 with convolution scroll body 6, and clip convolution Scroll 2；Multiple positions in the circumferential direction of convolution scroll pedestal 18 are arranged in, by making via rotary shaft in multiple crankshafts 3 It holds 29 and the core shift axle portion 8 of convolution scroll pedestal 18 is kept synchronously to rotate, so that the scroll 2 that makes to circle round is relative to fixed whirlpool Rotating part 5 circles round.

It should be noted that when can be relative to the convolution dismounting convolution scroll main body 17 of scroll pedestal 18, into one Step is preferably able to the reception hole 7 via shell 4 and dismounts convolution scroll main body 17 relative to convolution scroll pedestal 18.At this In the case of, the outer diameter of the convolution side baseplate part 16 for scroll main body 17 of circling round is formed as less than the internal diameter of the reception hole 7 of shell 4, And then it is less than the internal diameter of the flange 15 of reception hole 7.Therefore, after unloading fixed scroll 5 from shell 4, can further from Convolution scroll pedestal 18 unloads convolution scroll main body 17.Moreover, the operation can be carried out via the reception hole 7 of shell 4, and The dismounting being not accompanied by any bearing portion 80, therefore workability further increases.

In addition, separating returning to the insertion convolution scroll main body 17 of receiving opening 19 of convolution scroll pedestal 18 with gap In the case where revolving side baseplate part 16, convolution scroll main body 17 is preferably carried out as described below relative to convolution scroll pedestal 18 Positioning radially.That is, it is preferred that receiving opening 19 all side walls, in the circumferential equally spaced by supporting member (31) be arranged in week At upward three more than position, the front end of the supporting member (31) is towards prominent in receiving opening 19.In the present embodiment, substantially three Each central portion of three end edges of the convolution scroll pedestal 18 of angular shape, radially perforation ground forms threaded hole 32, as branch The fixing screws 31 (such as hexagon ring fixing screws) of bearing member are screwed into the threaded hole 32.Moreover, the front end of fixing screws 31 Portion is inwards protruded from all side walls of receiving opening 19.By by the front end of fixing screws 31 and convolution scroll main body 17 return The peripheral part of rotation side baseplate part 16 abuts and keeps (clamping) convolution side baseplate part 16, thus allows for convolution side baseplate part 16 Positioning radially relative to receiving opening 19.By making fixing screws 31 retreat relative to threaded hole 32, convolution can be adjusted Position of the side baseplate part 16 relative to receiving opening 19.In addition, according to expectation, binder also can be used and by 31 phase of fixing screws It is fixed for convolution scroll pedestal 18.Position of the convolution side baseplate part 16 relative to receiving opening 19 has been determined using fixing screws 31 After setting, the position of fixing screws 31 is fixed, and the scroll main body 17 that can make to circle round is axially (with convolution side baseplate part The vertical direction of 16 plate face) on relative to convolution scroll pedestal 18 dismount.In order to prevent from convolution scroll main body 17 to It circles round the heat transfer of scroll pedestal 18, preferably fixing screws 31 are also by the low material shape of thermal conductivity ratio convolution scroll pedestal 18 At being formed by stainless steel in the present embodiment.It should be noted that using such structure, lock above-mentioned Rationed marketing 24 is configured to chimeric by clearance fit with pin hole 25.

In addition, convolute-hydrodynamic mechanics 1 according to the present embodiment, in the core shift axle portion 8 of all crankshafts 3, in rotary shaft The gap setting held between 29 outer ring and the bearing hole 33 for scroll 2 of circling round has circular force-applying piece 57.It is circling round as a result, When the convolution of scroll 2, even if convolution scroll 2 is vibrated relative to crankshaft 3 under the influence of centrifugal force, it is also able to suppress convolution Gap between the outer ring of bearing 29 and the bearing hole 33 for scroll 2 of circling round is landfilled, can be by fixed scroll body 50 and convolution Gap Y between the side of scroll body 6, which is remained, wishes gap.

For example, in the core shift axle portion 8 of crankshaft 3 towards in the state of configuration near left side, being returned as shown in the left-half of Fig. 2 Vortex rotating part 2 is vibrated towards left side under the influence of centrifugal force, is applied load in the right side week side of core shift axle portion 8, so as to return The chimeric gap X that spin axis holds 29 is landfilled, so that fixed scroll body 50 will be approached with convolution scroll body 6.However, passing through force Part 57 controls the load, so as to inhibit the gap X between the outer ring of convolution bearing 29 and the bearing hole 33 for scroll 2 of circling round It is landfilled, the gap Y between fixed scroll body 50 and the side for the scroll body 6 that circles round can be remained and wish gap.Even if in addition, Assuming that the gap X between the outer ring of convolution bearing 29 and the bearing hole 33 for scroll 2 of circling round is filled completely, can also exert a force Impact is mitigated under the action of part 57, can prevent the breakage of each scroll body 50,6.It, can along with the convolution of convolution scroll 2 Such effect is successively continuously realized along the circumferential direction of crankshaft 3.In such manner, it is possible to automatically adjust the gap between scroll body 50,6 Y, therefore being capable of machining accuracy, the assembly precision compared with the past that each component be mitigated.Further, since being capable of adjust automatically whirlpool Gap Y between scroll 50,6, thus, it is also possible to stablize the performance of convolute-hydrodynamic mechanics 1.

In addition, convolute-hydrodynamic mechanics 1 according to the present embodiment, are arranged first step portion 3a and second in crankshaft 3 First step portion 3a is used for the positioning towards 5 side of fixed scroll by rank portion 3b, and second step portion 3b is used for towards convolution scroll The positioning of 2 sides, the thus positioning of axial each scroll 2,5 easy to accomplish relative to each crankshaft 3.In other words, by protect The bearing bearing surface for holding the second outside plate 12 of the shell 4 of fixed scroll 5 (abuts ladder-like with the upper surface of second bearing 37 Portion) on the basis of assemble each component, to mechanically determine the axial position of convolution scroll 2.Moreover, being set to torque-transmitting axle The inner ring of the convolution bearing 29 in portion 8 is fixed on core shift axle portion 8, but outer ring is not secured to bearing hole 33, therefore, will not hinder above-mentioned Scroll body 50,6 between radial gap Y adjustment function.

As shown in Fig. 2 and Fig. 4, the inner ring of convolution bearing 29 is pressed into the core shift axle portion 8 of crankshaft 3 and fixes.At this In embodiment, two convolution bearings 29 are pressed into core shift axle portion 8 in a manner of being overlapped up and down.At this point, the rotary shaft of lower section The lower end surface for holding 29 inner ring is abutted with second step portion 3b.Moreover, because the upper end of core shift axle portion 8 is threaded portion, therefore, The second fixture nut 56 is screwed into the threaded portion.The inner ring of convolution bearing 29 is as a result, to sandwich second step portion 3b and fixed spiral shell Mode between mother 56 is fixed.

On the other hand, in the outer ring of convolution bearing 29 and being spaced apart for the bearing hole 33 (large diameter hole 33a) of convolution scroll 2 Slightly gap, and have circular force-applying piece 57 in the gap setting.The force-applying piece 57 can for flexible ring (such as O-ring), or stiff ring (such as resin ring of engineering plastics).It should be noted that if being returned by thermal conductivity ratio The low material of vortex rotating part pedestal 18 forms force-applying piece 57, it helps prevents from convolution scroll pedestal 18 to convolution bearing 29 Heat transfer.

More specifically, the large diameter hole 33a of the bearing hole 33 of convolution scroll pedestal 18 is formed as than convolution bearing 29 The major diameter that outer ring is sized greatly.Outer peripheral surface circumferentially shape in addition, in the present embodiment, in the outer ring of convolution bearing 29 At the fitting groove for having the inner peripheral portion insertion for force-applying piece 57.Moreover, the inner peripheral portion of circular force-applying piece 57 is embedded into outer ring Fitting groove, on the other hand, peripheral part are embedded into the bearing hole 33 of convolution scroll pedestal 18.But it is also possible to as Structure, and fitting groove is set in the inner peripheral surface of bearing hole 33, the peripheral part of circular force-applying piece 57 is embedded into bearing hole 33 Fitting groove, on the other hand, by inner peripheral portion be embedded into convolution bearing 29 outer ring.No matter which kind of mode, circular force-applying piece 57 all configure in the gap between the outer ring of convolution bearing 29 and the bearing hole 33 for the scroll pedestal 18 that circles round.It needs to illustrate It is, in the present embodiment, the position at two up and down of each outer peripheral surface of the bearing 29 in outer ring that circle round, via circular force-applying piece 57 and be held in bearing hole 33.

Moreover, being fixed in all wall upper surfaces of bearing hole 33 by bolt 59 on convolution scroll pedestal 18 Determine ring 58.The fixed ring 58 can permit radial movement of the convolution scroll 2 relative to outer ring, and limit axial movement.

It is rotated as core shift axle portion 8 with 33 concentric arrangement of bearing hole, in the present embodiment, convolution bearing 29 Gap (unilateral side) X between the inner peripheral surface of the large diameter hole 33a of the outer peripheral surface and bearing hole 33 of outer ring be less than fixed scroll body 50 with The minimum setting value (two in the state of of gap (the radial gap of scroll body) Y between the side of convolution scroll body 6 Design gaps between scroll body 50,6), the substantially half (such as 20~30 μm) of for example, described minimum setting value.In the situation Under, even if assuming that convolution scroll 2 is vibrated relative to core shift axle portion 8 under the influence of centrifugal force and fills the gap X, thus Make circle round scroll body 6 will collide fixed scroll body 50, due to bearing hole 33 large diameter hole 33a inner peripheral surface first with convolution The outer peripheral surface of the outer ring of bearing 29 abuts, thus, it is also possible to prevent damaged because of caused by the collision of two scroll bodies 50,6.And And using force-applying piece 57, the gap X can be prevented to be landfilled, even and if the gap X be landfilled, also can be slowly Landfill.

In this way, keeping the outer peripheral surface of convolution bearing 29 and the inner peripheral surface of large diameter hole 33a using circular force-applying piece 57 Between gap.The gap circled round between the outer ring of bearing 29 and the bearing hole 33 for scroll 2 of circling round as a result, is filled out by force-applying piece 57 It buries, and in the case where that flexible deformation can occur, can be realized the adjustment in gap.

In addition, as shown in figure 3, convolution scroll main body 17 and convolution scroll pedestal 18 are preferably across the first middleware 30 It is overlapped and is not directly contacted with.In the present embodiment, pad is folded between the lower surface of projecting piece 22 and the bottom surface of recess portion 26 The middleware 30 of sheet.In other words, for being passed through to the bolt 28 of the fixed convolution scroll main body 17 of convolution scroll pedestal 18 After the bolt insertion hole 23 of the projecting piece 22 of convolution scroll main body 17 and the hole of middleware 30, it is screwed into convolution and is vortexed The threaded hole 27 of part pedestal 18.

Scroll main body 17 of circling round is fixed by 12 bolts 28 relative to convolution scroll pedestal 18, but in wherein half Middleware 30 is regard as thermal insulator 30A at position, regard middleware 30 as separator 30B at the position of remaining half.Specifically Ground says, a pair of of recess portion 26 of corresponding configuration and is installed on this in each corner of convolution scroll pedestal 18 with roughly triangular shape Between a pair of of projecting piece 22 of a pair of of recess portion 26, along the circumferential direction of receiving opening 19, for example according to separator 30B, thermal insulator 30A, Middleware 30 is arranged in the sequence of thermal insulator 30A and separator 30B.

Thermal insulator 30A and separator 30B is all formed as shape and size substantially identical to each other, but can also be according to feelings The difference of condition and it is different.By using separator 30B corresponding with the thickness of thermal insulator 30A, hardness, it is easy to be thermally shielded part The material of 30A is selected.In addition, as described later, if forming separator 30B by metal material, thickness and precision easy to accomplish also can It is enough to inhibit to deform because of caused by the fastening of bolt 28 load.Other than thermal insulator 30A, also recess portion 26 and projecting piece 22 it Between sandwich metal separator 30B, thus, it is possible to fixedly maintain convolution scroll main body 17 relative to convolution scroll base The setting height of seat 18, therefore, convolution scroll 2 are fixed with the configuration in the up and down direction of fixed scroll 5, are able to suppress Clearance at the position of sheet packing 21,51 after assembling changes, and prevents fluid from leaking.

No matter which kind of mode, middleware 30 all formed by the low material of thermal conductivity ratio convolution scroll pedestal 18.From this Point sets out, and in the case where middleware 30 is separator 30B above-mentioned, separator 30B also plays function as a kind of thermal insulator Energy.In the present embodiment, scroll main body 17 of circling round and convolution scroll pedestal 18 are formed by light-duty aluminium alloy, but in Between part 30 be for example ceramics or plastic thermal insulator 30A or stainless steel separator 30B.Moreover, institute as above It states, the convolution side baseplate part 16 of convolution scroll main body 17 is in the periphery of the inner peripheral surface of receiving opening 19 and convolution side baseplate part 16 The mode of the spaced apart at gaps in face is embedded into the receiving opening 19 of convolution scroll pedestal 18.In addition, for the scroll pedestal that circles round The projecting piece 22 of 18 recess portion 26 and convolution scroll main body 17, not only the bottom surface of recess portion 26 and the lower surface of projecting piece 22 across Middleware 30 and be not directly contacted with, and by forming the recess portion 26 that enclose than projecting piece 22 big one, thus the side of recess portion 26 and The outer rim of projecting piece 22 is also not directly contacted with.In addition, in addition to for fixing convolution scroll main body to convolution scroll pedestal 18 Except 17 bolt 28, further preferably locking pin 24 also by thermal conductivity ratio convolution scroll pedestal 18 (aluminium alloy) low material ( This is stainless steel) it is formed.In such manner, it is possible to prevent the heat transfer from convolution scroll main body 17 to convolution scroll pedestal 18, realize The protection of convolution bearing 29.

In addition, being embedded into convolution scroll base in convolution scroll main body 17 other than heat-insulated by middleware 30 In the state of the receiving opening 19 of seat 18, between being formed between the outer peripheral surface of convolution side baseplate part 16 and the inner peripheral surface of receiving opening 19 Gap.Becoming as a result, prevents from convolution scroll main body 17 to the construction of the heat transfer of convolution scroll pedestal 18.

With convolution scroll 2 the case where similarly, for fixed scroll 5, in order to which protection setting is in the first axle of shell 4 36 and second bearing 37 (more specifically preventing lubricant from using up) are held, is preferably prevented from from fixed scroll 5 to the biography of shell 4 Heat.Therefore, as shown in Fig. 2 and Fig. 4, fixed scroll 5 and shell 4 are preferably Chong Die without directly connecing across the second middleware 54 Touching.

Specifically, the flange 15 of shell 4 is be overlapped across middleware 54 with the affixed side baseplate part 20 of fixed scroll 5 ?.The middleware 54 can be for for the flange 15 for the affixed side baseplate part 20 of fixed scroll 5 to be fixed on to shell 4 The shim-like that bolt 53 passes through, or with the whole be overlapped annular shape of the circumferential direction of the flange 15 of shell 4.In addition, with convolution The case where scroll 2 it is equally possible that combined heat insulated part and separator as middleware 54.No matter which kind of mode, middleware 54 are all formed by the low material of thermal conductivity ratio shell 4.

Moreover, the affixed side baseplate part 20 of fixed scroll 5 is in the inner peripheral surface of open pore 7A and affixed side baseplate part 20 The mode of spaced apart at gaps of outer peripheral surface be embedded into the open pore 7A of shell 4.Even if alternatively, the position of the flange 15 in shell 4 Place is set, the periphery scroll body 52 of fixed scroll 5 is also between the inner peripheral surface of flange 15 and the outer peripheral surface of periphery scroll body 52 The mode for separating gap is embedded in.In addition, preferably being locked other than the bolt 53 for fixed scroll 5 to be fixed on to shell 4 Pin 55 can also be formed by the low material of thermal conductivity ratio shell 4 (being herein stainless steel).In such manner, it is possible to prevent from fixed scroll The protection of first bearing 36 and second bearing 37 is realized in 5 heat transfer to shell 4.

More than, the preferred embodiment of the present invention is illustrated, but the present invention is not limited to the above-described embodiments, energy It is enough suitably to change.

For example, in the above-described embodiment, also may be integrally formed fixed scroll 5 and shell 4.Specifically, can also To be integrally formed the fixed scroll 5 of the first outside plate 11 and upside, and the fixed scroll of integrally formed second outside plate 12 and downside Part 5.

In addition, in the above-described embodiment, it can also be in the wind of the peripheral part setting cooling of convolution scroll pedestal 18 Fan.For example, it is also possible to which the fan extended towards outside is circumferentially, equally spaced arranged in the outer peripheral surface in convolution scroll pedestal 18. At this point, fan can also be integrally formed with convolution scroll pedestal 18, it can also be with the peripheral part weight of convolution scroll pedestal 18 It is folded and integrated.In the latter case, in order to improve convolution scroll pedestal 18 and fan close property, can also be in the two Between sandwiched cooling fin.By the way that fan is arranged in convolution scroll pedestal 18, thus when scroll 2 of circling round has carried out convolution, Because the forced convertion heat of circumnutation generation and outside air is transmitted, the cooling of convolution scroll 2 is promoted.

In addition, by convolution scroll pedestal 18 peripheral part formed slot appropriate (such as convolution scroll pedestal Separated on 18 thickness direction and respectively towards the rectangular-shaped slot of convolution scroll pedestal 18 circumferentially extended out), it may have with wind Fan same function and effect.By the way that multiple slots are circumferentially arranged in the peripheral part of convolution scroll pedestal 18, biography can be increased It is cooling to effectively realize air for heat area.In addition, by being set as rectangular-shaped slot, so that strength reduction is also smaller, cooling air Flowing become with axis direction at right angle and therefore non axial flowing will not hinder air also can relative to the flowing of slot The air that convolution scroll 2 is effectively performed is cooling.

In addition, in the above-described embodiment, especially in affixed side baseplate part 20, can also be carried out to fixed scroll 5 Air is cooling or water is cooling.For example, it is also possible in the affixed side baseplate part 20 of fixed scroll 5, with 50 phase of fixed scroll body Setting is used to form the sheathing member in water flowing portion between the face tossed about or the component overlapped, and water is made to circulate in the water flowing portion.

In addition, in the above-described embodiment, being equipped with convolution scroll master in convolution scroll pedestal 18 in overlook view In the case where the convolution scroll 2 of body 17, when the convolution of the desired position of center of gravity and convolution scroll main body 17 of convolution scroll 2 When the position of centre of gravity of scroll body 6 is slightly different, it can also be arranged more than balanced adjustment appropriate in convolution scroll pedestal 18 Wall, to adjust the position of centre of gravity of convolution scroll 2.In other words, convolution can be adjusted in the side of convolution scroll pedestal 18 The position of centre of gravity of scroll main body 17.Moreover, not expanding the shape of convolution scroll pedestal 18, it will be able to obtain convolution scroll 2 whole balances.It should be noted that if in the remaining wall portion display unit code for being set to convolution scroll pedestal 18, then portion Part management also becomes easy.

In addition, in the above-described embodiment, for the sheet packing 21 of scroll body 6 that circles round, the piece of fixed scroll body 50 Any above sealing element in the peripheral seal 52A of shape sealing element 51 and periphery scroll body 52, also can be omitted it Setting.In this case, it is easy to be fixed scroll 5 relative to the dismounting of shell 4, convolution scroll main body 17 relative to returning The dismounting of vortex rotating part pedestal 18, therefore also can easily be done internal maintenance.Therefore, it can easily be done component It is surface-treated or to the engaging-in elimination of the reply of raw material, foreign matter, internal cleaning etc..

In addition, in the above-described embodiment, shell 4 is formed as a generally rectangular under overlook view, but not limited to this, It can be formed as round, triangle, other multilateral shapes.

In addition, in the above-described embodiment, flange 15 being arranged in the reception hole 7 of shell 4, is overlappingly installed in the flange 15 The peripheral part of the affixed side baseplate part 20 of fixed scroll 5, but also can be omitted the setting of flange 15, and above and below shell 4 The surface lower surface of the second outside plate 12 (upper surface of the first outside plate 11) is overlappingly installed by the affixed side substrate of fixed scroll 5 The peripheral part in portion 20.In this case, also it is configured to so that fixed scroll 5 is dismounted relative to shell 4 using bolt 53 etc. ?.

In addition, in the above-described embodiment, the radical of crankshaft 3 is set as three, but also can be set to four or more.At this In the case of, it can be set as driving crankshaft 3A by one therein, be set as remaining from dynamic crankshaft 3B, via rotating synchro structure 45 make their synchronous rotaries.

In addition, in the above-described embodiment, cylindrical shape can also be embedded in the bearing hole 33 of convolution scroll pedestal 18 Guided rings.In this case, instead of circular force-applying piece 57 to be set to the outer ring of core shift axle portion 8 and the scroll pedestal that circles round Gap between 18 bearing hole 33, then circular force-applying piece 57 is set to outer ring and the guided rings of core shift axle portion 8 Gap between inner hole.In such manner, it is possible to realize that the radial position of convolution scroll 2 and crankshaft 3 adjusts.

In addition, in the above-described embodiment, have multiple convolution bearings 29 as the bearing for keeping core shift axle portion 8, but The convolution bearing 29 other than end face overlaps each other, can also be overlapped each other in end surfaces adjuster.Adjuster example Such as be formed as cylindric and be configured at outer ring.In such manner, it is possible to realize that the axial position of convolution scroll 2 and crankshaft 3 adjusts.Together Sample, even if adjuster is also able to use in the case where the bearing 29 that circles round is one, to realize convolution scroll 2 and crankshaft 3 Axial position adjustment.

Claims

1. a kind of convolute-hydrodynamic mechanics, wherein

The convolute-hydrodynamic mechanics have:

Fixed scroll is provided with gyrate fixed scroll body in the plate face of affixed side baseplate part；

Circle round scroll main body, convolution side baseplate part plate face be provided with engaged with the fixed scroll body it is gyrate Circle round scroll body, also, be provided with extend from the end face inside radially of the peripheral part of the convolution side baseplate part it is multiple Notch；

Circle round scroll pedestal, by the fixed convolution scroll main body of the fastening member for inserting the peripheral part, also, It is correspondingly provided with the notch and enters the notch in the state of securing the convolution scroll main body Multiple bearing portions of inside；And

Multiple crankshafts, they are provided with the core shift axle portion being inserted into towards the bearing portion.

2. convolute-hydrodynamic mechanics according to claim 1, wherein

In convolution side baseplate part, circumferentially spaced to be positioned apart from multiple projecting pieces, the outside of the projecting piece radially Extend and inserted for the fastening member,

The recess portion for storing the projecting piece is provided in the convolution scroll pedestal,

The cutting part is between the adjacent projecting piece.

3. convolute-hydrodynamic mechanics according to claim 1 or 2, wherein

The convolution scroll main body is provided with the convolution scroll body on the two sides of the convolution side baseplate part,

A pair of fixed scroll is set to the two sides of the convolution side baseplate part,

The convolution scroll pedestal is configured to, and can dismount the convolution whirlpool from single side relative to the hole being arranged in the central portion Rotating part main body.