CN107725361A - Convolute-hydrodynamic mechanics - Google Patents

Convolute-hydrodynamic mechanics Download PDF

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Publication number
CN107725361A
CN107725361A CN201710406077.2A CN201710406077A CN107725361A CN 107725361 A CN107725361 A CN 107725361A CN 201710406077 A CN201710406077 A CN 201710406077A CN 107725361 A CN107725361 A CN 107725361A
Authority
CN
China
Prior art keywords
convolution
scroll
pedestal
main body
bearing
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN201710406077.2A
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Chinese (zh)
Other versions
CN107725361B (en
Inventor
笹尾智浩
冈本裕介
露口勇辅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Miura Co Ltd
Original Assignee
Miura Co Ltd
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Filing date
Publication date
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Publication of CN107725361A publication Critical patent/CN107725361A/en
Application granted granted Critical
Publication of CN107725361B publication Critical patent/CN107725361B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
    • F04C18/0253—Details concerning the base
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F01C1/0207—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F01C1/0246—Details concerning the involute wraps or their base, e.g. geometry
    • F01C1/0253—Details concerning the base
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/02—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F01C1/0207—Rotary-piston machines or engines of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F01C1/0246—Details concerning the involute wraps or their base, e.g. geometry
    • F01C1/0269—Details concerning the involute wraps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
    • F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
    • F04C18/0246—Details concerning the involute wraps or their base, e.g. geometry
    • F04C18/0269—Details concerning the involute 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
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/18—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber
    • F04C28/22—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/50—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/80—Other components
    • F04C2240/805—Fastening means, e.g. bolts

Abstract

The present invention provides convolute-hydrodynamic mechanics.Link in the position than the outer the week side of boss of scroll body of circling round in the convolute-hydrodynamic mechanics of multiple bent axles, there is provided can minimize convolution scroll and the structure of maintainability can be improved.Convolute-hydrodynamic mechanics possess：Fixed scroll, it is provided with gyrate fixed scroll body in the plate face of affixed side baseplate part；Convolution scroll main body, it is provided with the gyrate convolution scroll body engaged with fixed scroll body in the plate face of convolution side base plate portion, and is provided with multiple notch of the inner side extension from the end face of the peripheral part of convolution side base plate portion radially；Circle round scroll pedestal, its by insert peripheral part bolt fix convolution scroll main body, also, with notch be correspondingly provided with secure convolution scroll main body in the state of enter notch inner side multiple bearing portions；And multiple bent axles, they are provided with the core shift axle portion towards bearing portion insertion.

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 technology
In the past, in convolute-hydrodynamic mechanics, it is known that the part that the ratio in scroll of circling round is provided with convolution scroll body is leaned on The peripheral part in outside links the construction of multiple bent axles.As the document for disclosing this convolute-hydrodynamic mechanics, there is patent text Offer 1 and patent document 2.In patent document 1, describe and link 2 in the side of the peripheral part of convolution scroll and opposite side The construction of bent axle, in patent document 2, the peripheral part described in convolution scroll circumferentially links the construction of 3 bent axles.
Citation
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2004-36591 publications
Patent document 2：Japanese Unexamined Patent Publication 2003-120552 publications
The content of the invention
The invention problem to be solved
Link in the position than the outer the week side of boss of scroll body of circling round in the construction of bent axle, it is necessary in the outer circumferential side of scroll body that circles round Ensure the space for linking bent axle, therefore, the overall external diameter of convolution scroll becomes big, and weight can also increase.If scroll of circling round becomes Greatly, then correspondingly, the exterior (housing) of convolute-hydrodynamic mechanics can also maximize.Reducing manufacturing cost and ensuring to set Space this aspect, it is expected the miniaturization of convolute-hydrodynamic mechanics.In addition, in order to carry out the convolution scroll body of convolution scroll (such as replacing of sheet packing (tip seal) etc.) is safeguarded, it is necessary to enter to be about to bent axle and the overall link solution of scroll of circling round The operation removed, in efficient activity this aspect of upkeep operation, there is also room for improvement.
It is an object of the present invention to link the scroll fluid of multiple bent axles in the position than the outer the week side of boss of scroll body of circling round In machinery, there is provided can minimize convolution scroll and the structure of maintainability can be improved.
Means for solving the problems
The present invention relates to a kind of convolute-hydrodynamic mechanics, wherein, the convolute-hydrodynamic mechanics possess：Fixed scroll, It is provided with gyrate fixed scroll body in the plate face of affixed side baseplate part；Convolution scroll main body, it is in convolution side base 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 of the inner side extension of the end face of the peripheral part of side base plate portion radially；Circle round scroll pedestal, and it is by insert The fastening member of the peripheral part fixes the convolution scroll main body, also, is correspondingly provided with the notch solid Determined it is described convolution scroll main body in the state of enter the notch inner side multiple bearing portions；And multiple songs Axle, they are provided with the core shift axle portion towards bearing portion insertion.
Preferably, in the convolution side base plate portion, circumferentially spaced to be positioned apart from multiple projecting pieces, the projecting piece Outside radially is extended and inserted for the fastening member, is provided with described in storage and is stretched in the convolution scroll pedestal The recess 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 base plate portion Body, a pair of fixed scrolls are arranged at the both sides of the convolution side base plate portion, and the convolution scroll pedestal is configured to, energy It is enough to dismount the convolution scroll main body from one side relative to the hole set in the central portion.
Invention effect
According to the present invention, link the convolute-hydrodynamic mechanics of multiple bent axles in the position than the outer the week side of boss of scroll body of circling round In, it can be achieved to minimize convolution scroll and the structure of maintainability can be improved.
Brief description of the drawings
Fig. 1 is the figure of the one side for the convolute-hydrodynamic mechanics for showing one embodiment of the present invention.
Fig. 2 is the II-II sectional views in Fig. 1.
Fig. 3 is the exploded perspective view of the convolution scroll of Fig. 1 convolute-hydrodynamic mechanics.
Fig. 4 is the enlarged drawing of Fig. 2 left part.
Fig. 5 is the top view for schematically showing the convolution scroll main body for being fixed on convolution scroll pedestal.
Description of reference numerals：
1 convolute-hydrodynamic mechanics；
3 bent axles；
5 fixed scrolls；
6 convolution scroll bodies；
8 core shift axle portions；
16 convolution side base plate portions；
17 convolution scroll main bodys；
18 convolution scroll pedestals；
19 receiving openings (hole)；
20 affixed side baseplate parts；
22 projecting pieces；
26 recesses；
28 bolts (fastening member)；
50 fixed scroll bodies；
70 peripheral parts；
71 notch；
80 bearing portions.
Embodiment
Hereinafter, the preferred embodiment of the present invention is illustrated referring to the drawings.Fig. 1 shows convolute-hydrodynamic mechanics The figure of one side (such as side view on the upward view or left and right directions on above-below 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 Fig. 2 left part.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 bent axle Direction illustrates as " axial direction ".The axial direction is that Fig. 2 (strictly speaking due to being II-II sectional views, therefore is its left-half Or right half part) in above-below direction.In order to illustrate, sometimes by axial direction side be set to upside and by axial direction it is another Side is set to downside etc. to show up and down, but is not intended to the posture for limiting convolute-hydrodynamic mechanics 1.When in use, can be with song Axle 3 configures convolute-hydrodynamic mechanics 1 along the direction beyond above-below direction, the mode of such as left and right directions.
<The overall structure of convolute-hydrodynamic mechanics>
The main composition of convolute-hydrodynamic mechanics 1 of present embodiment is to possess：Housing 4, it is held in the shell with can circling round The convolution scroll 2 of body 4, it is fixed on a pair of fixed scrolls 5 of housing 4 in a manner of clipping convolution scroll 2, makes convolution whirlpool The multiple bent axles 3 and make the synchronous rotating synchro structure 45 of the rotation of multiple bent axles 3 that rotating part 2 circles round.
<Housing>
In the present embodiment, the box-like that housing 4 is formed as a generally rectangular, overlook at central portion, by scroll 2 of circling round The storage of convolution scroll body 6 for the reception hole 7 that can circle round, (above-below direction in Fig. 2) is formed through vertically.In housing 4 In, bent axle 3 is arranged on the circumferential multiple opening positions for surrounding reception hole 7, also, the bent axle 3 with the diameter parallel of reception hole 7 The accommodation space 9 of core shift axle portion 8 connected via opening portion 10 with reception hole 7.
The housing 4 of present embodiment possesses the substantially rectangular outside plate 12 of flat first outside plate 11 and second, outside these Plate shape turns into mutually corresponding size.First outside plate 11 and the second outside plate 12 are in the axial direction separately and abreast arranged opposite, outside End edge connects each other by appropriate connecting plate 13.As shown in Fig. 2 being axially facing above-below direction of bent axle 3 is being configured into whirlpool In the case of rotary fluid machinery 1, the first outside plate 11 turns into upper plate, and the second outside plate 12 turns into lower plate.In addition, by bent axle 3 In the case of being axially facing left and right directions and configuring convolute-hydrodynamic mechanics 1, the first outside plate 11 and the second outside plate 12 turn into side Plate.Equally, connecting plate 13 turns into side plate in the case where placing convolute-hydrodynamic mechanics 1 along the vertical direction, in left-right direction Turn into upper plate or lower plate etc. in the case of placing convolute-hydrodynamic mechanics 1.
In the corresponding position of the first outside plate 11 and the second outside plate 12, open pore 7A has been 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 bulb in housing 4.The open pore of first outside plate 11 The open pore 7A of 7A and the second outside plate 12 turns into the circular hole with formed objects.In the example shown in Fig. 2, the open pore of top 7A perisporium protrudes downward compared with the lower surface of the first outside plate 11, the open pore 7A of lower section perisporium and the second outside plate 12 Compare and protrude upward in upper surface.
In flange 15 of each open pore 7A bottom formed with annular shape.Specifically, opening in axial side (top) The end (bottom) of the inner side of oral pore 7A perisporium, flange 15, the opposing party are provided with a manner of radially inner side is extended Face, in the end (upper end) of the inner side of the open pore 7A of thickness direction opposite side (lower section) perisporium, prolonged with radially inner side The mode of stretching is provided with flange 15.Each flange 15 of ratio in housing 4 leans on the position of radial outside formed with the hollow of ring-type Portion, the hollow bulb turn into the accommodation space 9 of the core shift axle portion 8 of bent axle 3.Moreover, the accommodation space 9 is between a pair of flanges 15 Opening portion 10 circumferentially continuously (hypothetically connects the open pore 7A of both sides (upper and lower) and formed between it towards reception hole 7 Blank part) opening.
It should be noted that for the first outside plate 11 and the second outside plate 12, can as Fig. 1 front and rear end edge (in other words Say Fig. 2 right side) upper surface of the lower surface of the first outside plate 11 and the second outside plate 12 is connected by connecting plate 13 like that, also may be used The end face of the first outside plate 11 is connected end edge (in other words Fig. 2 left side) in the left and right such as Fig. 1 by connecting plate 13 With the end face of the second outside plate 12.In addition, each connecting plate 13 can be arranged on the first outside plate as the connecting plate 13 on Fig. 1 right side 11 and second outside plate 12 end edge whole region, can also be arranged on as the connecting plate 13 in Fig. 1 left side outside first A part for the end edge of the outside plate 12 of plate 11 and second.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 as bolt 14, word is not limited to Bolt on face, various screws can also be used, on this point, other bolts described later are similarly.
<Convolution scroll>
As shown in FIG. 2 and 3, the main composition of scroll 2 of circling round is to possess：With convolution side base plate portion 16 and convolution whirlpool The convolution scroll main body 17 of scroll 6 and the convolution scroll pedestal 18 linked for bent axle 3.
<Convolution scroll main body>
Convolution scroll main body 17 is configured to, in a detachable manner from the one 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 discoideus convolution side base plate portion 16 two sides (upper surface and lower surface) are respectively arranged with convolution scroll body 6.
Convolution scroll body 6 is the tabular vertically extended from the plate face of convolution side base plate portion 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 base plate portion 16 The convolution scroll body 6 that (upper surface) is set is towards axial side (top), in the convolution whirlpool that another side (lower surface) is set Scroll 6 is towards the opposite side (lower section) of axial direction, and the convolution scroll body 6 of (two sides) is mutual with shape, size and configuration up and down 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 along convolution scroll body 6 vortex and configure.The sheet of present embodiment Seal 21, which is embedded into, to be formed in the groove of the stretching leading section extended from convolution side base plate portion 16 in convolution scroll body 6. In drawing, the upper end of the convolution scroll body 6 of upside, the bottom of the convolution scroll body 6 of downside, which turn into, stretches out leading section.And And sheet packing 21 can dismount relative to convolution scroll body 6.It should be noted that in Fig. 3 and Fig. 5, piece is eliminated The diagram of shape seal 21 and relative construction.
The multiple projecting pieces 22 extended in the outside that the peripheral part 70 of convolution side base plate portion 16 is provided with radially.Need Illustrate, the peripheral part 70 of present embodiment is until being provided with convolution scroll body in the plate face than circling round side base plate portion 16 The region untill the end face (outermost the week side of boss) of radial outside is leaned in 6 part, turns into the part for including diametrically outermost side Scope inside.
Projecting piece 22 is provided with multiple at spaced intervals in the circumferential.In the present embodiment, a pair will be adjacent to Projecting piece 22 is set to one group, and the group has been equally spaced multiple in the circumferential.Specifically, a pair of projecting pieces 22 with three groups and 120 degree of intervals and the central portion for side base plate portion 16 of circling round are integrally formed.In the present embodiment, projecting piece 22 forms peripheral part 70 A part.It should be noted that the shape of convolution side base plate portion 16 can be changed suitably, projecting piece 22 can be omitted and be set to Circle, polygon etc..In this case, peripheral part also turns into until the part than being provided with convolution scroll body is by radial outside Region untill end face (outermost the week side of boss).
Each projecting piece 22 of present embodiment is formed as the one side (upper surface) of thickness direction from convolution side base plate portion 16 Central continuous tabular.As illustrated at the right side of figure 2, projecting piece 22 is formed as the central portion of its thickness ratio convolution side base plate portion 16 It is slightly thin.
In the peripheral part 70 of convolution side base plate portion 16, it is provided with and the bearing portion 80 of convolution scroll pedestal 18 described later The notch 71 of the corresponding shape of profile.Notch 71 equally spaced configures in the circumferential, and from the end face in outside radially Inner side is shaped generally as arc-shaped.In the present embodiment, formed with cutting between a pair of projecting pieces 22 of peripheral part 70 are formed Oral area 71.
As shown in figure 3, two bolt insertion holes 23 in a manner of along being circumferentially separated of convolution side base plate portion 16 respectively along upper Lower insertion it is formed at the plate face of each projecting piece 22.In addition, being opposed to convolution the approximately radial of side base plate portion 16, stretched at two Slice 22 is also formed with the pin-and-hole 25 for stop pin 24 described later insertion.
<Circle round scroll pedestal>
Convolution scroll pedestal 18 is formed through the convolution side base plate portion for receiving convolution scroll main body 17 in central portion 16 receiving opening 19, its global shape are 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 bent axle 3.Bearing hole 33 has been formed through in each bearing portion 80.Each bearing hole 33 turns into top and configures big footpath Hole 33a and bottom configuration diameter holes 33b stepped hole.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 Individual corner is configured with bearing portion 80.It should be noted that the shape of convolution scroll pedestal 18 be not limited under vertical view be in Roughly triangular shape, it can also suitably be changed to circular shape etc..
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 26 of piece 22 is arranged at the circumferential both sides of each bearing portion 80.Recess 26 from the side of thickness direction by cutting away receiving opening 19 internal perisporium and formed, and in a manner of the axial central portion that its bottom surface is located at receiving opening 19 towards thickness direction side (on Side) opening.
In the bottom surface of each recess 26, inserted formed with the bolt with being formed on the projecting piece 22 of convolution scroll main body 17 Screwed hole 27 corresponding to hole 23.In addition, the position at approximately radial opposed two with receiving opening 19, stop pin 24 is from bottom surface court The side of axial direction is provided projectingly on the bottom surface of recess 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 bent axle 3 and are provided with convolution bearing 29.(more specifically prevent from moistening from protection convolution bearing 29 Lubrication prescription is used up) from the viewpoint of, it is preferably prevented from the heat transfer from convolution scroll main body 17 to convolution scroll pedestal 18.In this reality Apply in mode and be configured to, the internal diameter of receiving opening 19 is sized greatly than the external diameter for side base plate portion 16 of circling round.Thus, it is vortexed in convolution In the state of the receiving opening 19 of part pedestal 18 embedded in convolution scroll main body 17, convolution side base plate portion 16 outer peripheral face with connecing Receive between the inner peripheral surface in hole 19 formed with gap, the biography from convolution scroll main body 17 to convolution scroll pedestal 18 can be prevented Heat.
<Fixed scroll>
Fixed scroll 5 is configured in the axial both sides (upper and lower in Fig. 2) of convolution scroll 2.Each fixed scroll 5 exists The one side of discoideus affixed side baseplate part 20, the fixed scroll body of one or more tabulars is vertically arranged with the plate face 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 be arranged to convolution 6 corresponding number of scroll body, shape and size, and be configured to from fixation The central portion of side base plate portion 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 base plate portion 16 for the scroll 2 that fills and circle round Gap sheet packing 51.Vortex of the sheet packing 51 along fixed scroll body 50 and configure.The piece of present embodiment Shape seal 51 is embedded into the groove for the stretching leading section extended from affixed side baseplate part 20 being formed in fixed scroll body 50 In.In drawing, the bottom of the fixed scroll body 50 of the fixed scroll 5 of upside, the fixation whirlpool of the fixed scroll 5 of downside The upper end of scroll 50, which turns into, stretches out leading section.Moreover, sheet packing 51 can dismount relative to fixed scroll body 50.
In each fixed scroll 5, cylindric periphery scroll body 52 is provided with a manner of surrounding fixed scroll body 50. In Fig. 2 drawing, 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 base The stretching size that plate portion 20 is extended) 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 base plate portion 16.One or more peripheral seal 52A are along periphery scroll body 52 It is arranged circumferentially.
The peripheral seal 52A of present embodiment be embedded into be formed in periphery scroll body 52 from affixed side baseplate part 20 In the groove for the stretching leading section extended.In drawing, the bottom 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 turns into, stretches out leading section.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 fixed scroll body 50 is engaged with convolution scroll body 6, with the side that can be dismounted Formula is arranged at the upper and lower of housing 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 housing 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 housing 4 in a detachable manner by bolt 53 The lower surface of the flange 15 of side.It should be noted that multiple positions in the circumference of the flange 15 of housing 4 are provided with stop pin 55, the stop pin 55 is embedded in the pin-and-hole in the setting of affixed side baseplate part 20 of fixed scroll 5, so as to which scroll be fixed 5 relative to the positioning in the circumference of housing 4.
As shown in Figure 1 and Figure 2, the outer circumferential side of a pair of fixed scrolls 5 is provided with the first opening 60, the opposing party respectively Face, the central portion of a pair of fixed scrolls 5 is provided with the second opening 61 respectively.It should be noted that first opening 60 with And second opening member 62,63 that is provided with tubulose of opening 61.In addition, in fig. 2, the second opening 61 vertically shown can also Center with the convolution side base plate portion 16 for scroll 2 of circling round according to circumstances and in a manner of separating through hole is interconnected.
<Bent axle>
Bent axle 3 is arranged at position at two in the peripheral part of convolution scroll 2 (convolution scroll pedestal 18), preferably sets Put at three more than position.In the present embodiment, bent axle 3 convolution scroll 2 peripheral part, be arranged in circumference at equal intervals Three at position.
As shown in figure 1, circumference of the bent axle 3 along housing 4 is equally spaced the position at three, it is in the present embodiment phase Same construction.In addition, as shown in Fig. 2 each bent axle 3 configures in a manner of its axis is along above-below direction.Each bent axle 3 is arranged to, The hollow bulb of housing 4 is vertically penetrated in drawing.
As shown in Fig. 2 (especially left side) and Fig. 4, the core shift axle portion 8 of each bent axle 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 Footpath, it is divided into large-diameter portion 35a, central diameter portion 35b and minor diameter part 35c.In addition, in the bottom of core shift axle portion 8, it is concentrically formed with Wide diameter portion 8a.
Each bent axle 3 is provided with Weight balancer 49, to realize the smoothly rotation for scroll 2 of circling round.In this embodiment party In formula, weight is respectively arranged with the upper end of the bottom of the main shaft part 34 of upside and the large-diameter portion 35a of the main shaft part 35 of downside Measure balancer 49.
Each bent axle 3 is clipping the main shaft part 34,35 of the both sides of core shift axle portion 8, and housing 4 is held in a manner of rotating freely The first outside plate 11 and the second outside plate 12.In the present embodiment, the main shaft part 34 of top rotates via clutch shaft bearing 36 The first outside plate 11 of housing 4 is held in freely, and 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 housing 4.
In the main shaft part 34,35 of the both sides for clipping core shift axle portion 8 of each bent axle 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 described above that Sample is formed as that ladder is bar-shaped, and large-diameter portion 35a and central diameter portion 35b stepped portion (large-diameter portion 35a lower surface) turns into First Rank portion 3a.The upper surface of the inner ring of second bearing 37 abuts with first step portion 3a.
On each bent axle 3, the axial side end (bottom in Fig. 2) in core shift axle portion 8 is provided with second Rank portion 3b.As described above, the bottom of core shift axle portion 8 is provided with wide diameter portion 8a, with the stepped portion between wide diameter portion 8a (wide diameter portion 8a upper surface) turns into second step portion 3b.The lower surface of the inner ring of convolution bearing 29 is supported with second step portion 3b Connect.It should be noted that the convolution bearing 29 for being arranged at core shift axle portion 8 can be it is single can also be it is multiple, to be multiple In the case of, the lower surface for being configured at the inner ring of convolution bearing 29 square most on the lower abuts with second step portion 3b.Shown in drawing Example in, be vertically overlappingly provided with two convolution bearings 29 in core shift axle portion 8.
In the first outside plate 11 and the second outside plate 12 of housing 4, three in circumference corresponding with the set location of bent axle 3 Place position vertically penetrate formed with shaft mounting hole 38,39.The shaft mounting hole 38 of first outside plate 11 of housing 4 is formed as ladder Shape hole, in diameter holes 38a formed below, up formed with large diameter hole 38b.The shaft mounting hole of second outside plate 12 of housing 4 39 are again formed as stepped hole, up formed with diameter holes 39a, in large diameter hole 39b formed below.
In the present embodiment, clutch shaft bearing 36 and second bearing 37 are formed by rolling bearing.Known rolling bearing It is configured to, is being configured to along its circumferential array maintain multiple rollings between the substantially cylindric inner ring of concentric circles and outer ring Kinetoplast.Thus, the inner ring of rolling bearing and outer ring rotate freely via rolling element.It should be noted that it is arranged at torque-transmitting axle Each convolution bearing 29 in portion 8 also uses the structure same with clutch shaft bearing 36 and second bearing 37 in the present embodiment.
The fixation of second bearing 37 towards the second outside plate 12 of housing 4 is carried out as follows.That is, to large diameter hole 39b press-ins the The outer ring of two bearings 37, until the upper surface of outer ring is connected to the diameter holes 39a of the shaft mounting hole 39 of the second outside plate 12 and big footpath Untill hole 39b stepped portion (large diameter hole 39b upper surface).Then, it is using bolt 41 that the retainer ring 40 of annular shape is overlapping Ground is fixed on the lower surface of the second outside plate 12.Thus, second bearing 37 sandwiches the stepped portion of shaft mounting hole 39 with consolidating with outer ring 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 press-in of second bearing 37.That is, into second bearing 37 The central diameter portion 35b of circle press-in main shaft part 35, untill the upper surface of the inner ring of second bearing 37 is connected to first step portion 3a. Moreover, central diameter portion 35b bottom turns into threaded portion, therefore the first fixing nut 42 is screwed into the threaded portion.Thus, the second axle 37 are held to be fixed in a manner of inner ring is sandwiched between first step portion 3a and fixing nut 42.
The fixation of clutch shaft bearing 36 towards the first outside plate 11 of housing 4 is carried out as follows.That is, it is embedded in axle to large diameter hole 38b Shell 43 is held, until the flange lower surface that the outer ring of clutch shaft bearing 36 is held in bearing case 43 and bearing case 43 is connected to the Untill 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, it is pressed into the main shaft part 34 of top to the inner ring of clutch shaft bearing 36.
<Rotating synchro structure>
Three bent axles 3 obtain the position (in other words obtaining phase) of core shift axle portion 8, and are entered by rotating synchro structure 45 Row synchronous rotary.Rotating synchro structure 45 can use gear, but use timing belt 46 in the present embodiment.
Main shaft part 35 (minor diameter part 35c) of the rotating synchro structure 45 of present embodiment in the lower section of each bent axle 3 is fixed with Tooth form belt wheel 47, timing belt 46 are winded between these tooth form belt wheels 47.Now, as shown in figure 1, timing belt 46 is also hooked in tension force Roller 48, of timing belt 46 can be adjusted by adjusting the position (relative to the position of the radial direction of reception hole 7) of jockey pulley 48 Power.
It should be noted that one (bent axle of bottom right in Fig. 1 of present embodiment) in three bent axles 3 turns into from outside The driving bent axle 3A for being powered (or exporting recovery power to outside) is inputted, remaining two this defeated as not carrying out directly Enter (or output) from dynamic crankshaft 3B.
<The assembling of convolute-hydrodynamic mechanics>
One of the assembling operation of the convolute-hydrodynamic mechanics 1 of present embodiment is illustrated.First, whirlpool of circling round is illustrated Rotating part pedestal 18 and the link of convolution scroll main body 17.To the insertion convolution scroll master of recess 26 of convolution scroll pedestal 18 The projecting piece 22 of body 17, and the convolution side base of the insertion convolution scroll of receiving opening 19 main body 17 to convolution scroll pedestal 18 Plate portion 16.Pass through the projecting piece 22 of the insertion convolution scroll of stop pin 24 main body 17 of the recess 26 to convolution scroll pedestal 18 Pin-and-hole 25, so as to which the scroll main body 17 that circle round is relative to the positioning in the circumference of convolution scroll pedestal 18.
As shown in figure 5, in the state of positioning of the convolution scroll pedestal 18 with convolution scroll main body 17 has been carried out, into For the scroll pedestal 18 that circles round bearing portion 80 enter convolution scroll main body 17 notch 71 inner side state.Fig. 5 Shown double dot dash line is links the imaginary circular arc of the end face of a pair of projecting pieces 22, but a part for bearing portion 80 turns into association To position relationship as the circular arc.In this condition, inserted by the bolt of the projecting piece 22 to the both sides for sandwiching bearing portion 80 Through hole 23 is inserted bolt 28 and screwed togather with the screwed hole 27 of recess 26.
In order to fix convolution scroll main body 17 to convolution scroll pedestal 18, it is necessary to which projecting piece 22 is such for tight The space of fixing bolt 28 is formed at the peripheral part 70 of convolution side base plate portion 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 projecting pieces 22 formed notch 71, be achieved in will to convolution be vortexed The space that part pedestal 18 links convolution scroll main body 17 is formed at the peripheral part 70 of convolution side base plate portion 16 and convolution is vortexed The bearing portion 80 of part pedestal 18 is configured at the layout of the inner side of radial direction.In other words, convolution side base plate portion 16 peripheral part 70, with The mode for being threaded through the track of the imaginary circle of the restraint location of circumference is configured with bearing portion 80, it may also be said to is to avoid periphery The restraint location in portion 70 and be configured with notch 71.
Convolution scroll pedestal 18 can be separated with convolution scroll main body 17 if bolt 28 is unloaded, therefore, will returned Vortex rotating part main body 17 is fixed on convolution scroll pedestal 18 in a detachable manner.It should be noted that it can also omit Stop pin 24 and pin-and-hole 25.Next, to convolution scroll 2 is installed on into housing 4 in a manner of it can circle round via bent axle 3 Operation illustrate.First, second bearing 37 is installed to the second outside plate 12.On the other hand, via convolution bearing 29 and after Each bent axle 3 is installed on convolution scroll 2 by the force-applying piece 57 stated.Will convolution via the convolution bearing 29 for being installed on bearing hole 33 Scroll 2 is held in bent axle 3.Convolution scroll 2 be configured with to the reception hole 7 of housing 4 convolution scroll body 6 in the state of, into For the state for configuring convolution side base plate portion 16 and convolution scroll pedestal 18 perpendicularly to the axis with reception hole 7.Convolution is vortexed Opening portion 10 of the part pedestal 18 between the flange 15 of housing 4 and extend towards the outside of reception hole 7.Scroll of circling round pedestal 18 Each bearing hole 33 turn into the flange 15 of housing 4 compared with configure radial outside position relationship.
Next, installed to each bent axle 3 of the insertion convolution scroll 2 of second bearing 37 of the second outside plate 12.This When, each bent axle 3 is installed with 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, clutch shaft bearing 36 is configured between the first outside plate 11 and bent axle 3.To The open pore 7A of first outside plate 11 and the second outside plate 12 is fixed with fixed scroll 5.
So, in the convolute-hydrodynamic mechanics 1 of present embodiment, convolution scroll body 6 is configured at shell by convolution scroll 2 In the reception hole 7 of body 4, and housing 4 is held in a manner of it can circle round in the position than reception hole 7 in the outer part.On the other hand, Fixed scroll body 50 is configured in the reception hole 7 of housing 4 by fixed scroll 5, and can removably be arranged at the convex of reception hole 7 Edge 15, so as to the reception hole 7 of closure shell 4.Now, the affixed side baseplate part 20 of fixed scroll 5 is also accommodated in reception hole 7 It is 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 situation and Situation as expander.
<As compressor or the convolute-hydrodynamic mechanics of air blower>
In the case where convolute-hydrodynamic mechanics 1 are compressor or air blower, make driving bent axle 3A rotations can (in other words Say input power).Assigned externally to driving bent axle 3A and be powered (in other words input power), with this concomitantly, also passed through Make to rotate from dynamic crankshaft 3B by rotating synchro structure 45, and convolution scroll 2 is circled round.For example, the one of driving bent axle 3A The main shaft part 35 of side is directly linked with the output shaft of motor (omitting diagram), is in other words connected with the defeated of motor via shaft coupling Shaft.
Thereby, it is possible to convolution scroll 2 is circled round relative to fixed scroll 5.Now, to the confession of driving bent axle 3A supplies Also it is transferred to power via rotating synchro structure 45 from dynamic crankshaft 3B, three bent axles 3 and synchronizes rotation.It is vortexed when making convolution , can be from the suction fluid of the first opening 60 when part 2 circles round relative to fixed scroll 5, and while in convolution scroll body 6 and fix The fluid is compressed between scroll body 50, while making the fluid, from the outer side of the vortex, side is moved inwardly, so that from The discharge of second opening 61.
<Convolute-hydrodynamic mechanics as expanding machine>
In the case where convolute-hydrodynamic mechanics 1 are expanding machine, supplied fluid is utilized convolution scroll 2 is circled round (rotation), and rotate each bent axle 3 via rotating synchro structure 45, so as to assign recovery power (in other words to driving bent axle 3A Say output power).Rotary driving force (in other words exporting power) is assigned to driving bent axle 3A.It is for example, straight in driving bent axle 3A Have by the input shaft of motivation (machinery for thering is expanding machine to drive), be in other words connected with via shaft coupling by the defeated of motivation in succession Enter axle.
Moreover, when from the second 61 incoming fluid of opening, in the presence of the power of fluid, convolution scroll 2 is circled round, Fluid is expanded while being discharged from the first opening 60.Thereby, it is possible to the rotary driving force for scroll 2 of circling round is dynamic as recovery Power is taken out from driving bent axle 3A.It should be noted that now, it is bent with driving also via rotating synchro structure 45 from dynamic crankshaft 3B Axle 3A synchronous rotaries.
In addition, the convolute-hydrodynamic mechanics 1 of present embodiment can also be used as follows：Make drive by motor Dynamic crankshaft 3A is rotated in the opposite direction, and fluid is discharged from the suction fluid of the second opening 61, and towards the first opening 60.
So, the convolute-hydrodynamic mechanics 1 of present embodiment can act as compressor, expanding machine, air blower, vavuum pump Deng.It should be noted that being not particularly limited for the fluid for compressing or expanding etc., air, steam, refrigerant can be corresponded to Etc. various fluids.
Embodiment from the description above, play following effect.
That is, convolute-hydrodynamic mechanics 1 possess：Fixed scroll 5, it is provided with vortex in the plate face of affixed side baseplate part 20 The fixed scroll body 50 of shape；Scroll of circling round main body 17, it is provided with and fixed scroll body in the plate face of convolution side base plate portion 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 base plate portion 16 radially Inner side extension multiple notch 71；Scroll of circling round pedestal 18, it fixes convolution by the bolt 28 of insert peripheral part 70 Scroll main body 17, also, be correspondingly provided with entering in the state of convolution scroll main body 17 is secured with notch 71 To multiple bearing portions 80 of the inner side of notch 71；And multiple bent axles 3, they are provided with the torque-transmitting axle inserted towards bearing portion 80 Portion 8.
Thus, using the notch 71 for scroll main body 17 of circling round, the bearing portion 80 of convolution scroll pedestal 18 can be made Positioned at the inner side of radial direction, thus can by circle round scroll pedestal 18 radial direction be sized to it is smaller, can also realize in Put back into the miniaturization of the housing 4 of vortex rotating part pedestal 18.
In addition, the link of the bearing portion 80 and bent axle 3 relative to the convolution scroll 2 of housing 4 will not be released, can be easy Ground unloads fixed scroll 5 from housing 4, therefore, it is possible to be easily surface-treated or the part caused by raw material more Change, reprocess, the elimination that foreign matter is engaging-in, internal cleaning etc..For example, the sheet that can easily carry out convolution scroll body 6 is close The peripheral seal 52A of sealing 21, the sheet packing 51 of fixed scroll body 50 and periphery scroll body 52 replacing.
In addition, in the present embodiment, it is circumferentially spaced to be positioned apart from multiple projecting pieces in convolution side base plate portion 16 22, the outside of projecting piece 22 radially is extended and inserted for bolt 28, and convolution scroll pedestal 18 is provided with storage The recess 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 enters bearing portion 80 To the structure of the inner side of the radial direction of convolution scroll main body 17.
In addition, can also use gap is formed between the outer peripheral face of convolution side base plate portion 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.Formed , depending on the situation, also can be so that further radially notch 71 and the gap pair are cut in inner side in the structure in gap The mode for the amount answered forms bearing portion 80.That is, the miniaturization of 2 overall radial direction of realization convolution scroll can be made while 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 base plate portion 16 Scroll body 6, a pair of fixed scrolls 5 are arranged at the both sides of convolution side base plate portion 16, and convolution scroll pedestal 18 is configured to, can Relative to the receiving opening 19 set in the central portion convolution scroll main body 17 is dismounted from one side.
Thereby, it is possible to by be provided with two sides convolution scroll body 6 convolution scroll main body 17 from convolution scroll pedestal 18 one side is dismounted quickly, and therefore, dismounting operation when safeguarding becomes easy, and can shorten the activity duration.At this In embodiment, while it is desirable to some decomposition at the clutch shaft bearing 36 of housing 4, but without point at convolution bearing 29 Solution, it becomes possible to unload convolution scroll main body 17 upward from convolution scroll pedestal 18.Therefore, it is same with fixed scroll 5 Ground, it also can easily carry out the maintenance of convolution scroll main body 17.
In addition, the convolute-hydrodynamic mechanics 1 of present embodiment are also formed as described below.
<Convolution scroll body is arranged at the construction on two sides>
The convolute-hydrodynamic mechanics 1 of present embodiment possess：Convolution scroll 2, is consisted of, in convolution side base plate portion 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 one side of pedestal 18 is installed on the receiving opening 19 of central portion；A pair of fixed scrolls 5, it is arranged to, in affixed side baseplate part 20 One side be provided with gyrate fixed scroll body 50, the fixed scroll body 50 is engaged with convolution scroll body 6, and clip convolution Scroll 2；Multiple bent axles 3, it is arranged on multiple positions in the circumference of convolution scroll pedestal 18, by making via rotary shaft Hold 29 and keep the core shift axle portion 8 of convolution scroll pedestal 18 synchronously to rotate, so that convolution scroll 2 is relative to fixed whirlpool Rotating part 5 circles round.
It should be noted that when scroll main body 17 can be circled round relative to the convolution dismounting of scroll pedestal 18, enter one Step is preferably able to the reception hole 7 via housing 4 and dismounts convolution scroll main body 17 relative to convolution scroll pedestal 18.At this In the case of, the external diameter of the convolution side base plate portion 16 of convolution scroll main body 17 is formed as less than the internal diameter of the reception hole 7 of housing 4, And then the internal diameter of the flange 15 less than reception hole 7.Therefore, after fixed scroll 5 is unloaded from housing 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 housing 4, and The dismounting being not accompanied by any bearing portion 80, therefore workability further improves.
<Positioning based on fixing screws>
In addition, separating time of the insertion convolution scroll of receiving opening 19 main body 17 to convolution scroll pedestal 18 with gap In the case of revolving side base plate portion 16, the scroll main body 17 that preferably carries out circling round as described below is relative to convolution scroll pedestal 18 Positioning radially.That is, supporting member (31) is equally spaced preferably arranged on week in the circumferential in all side walls of receiving opening 19 At upward three more than position, the leading section 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, screwed hole 32 insertion radially is formed, as branch The fixing screws 31 (such as hexagon ring fixing screws) of bearing member are screwed into the screwed hole 32.Moreover, the front end of fixing screws 31 Portion inwards protrudes from all side walls of receiving opening 19.Pass through returning the leading section of fixing screws 31 and convolution scroll main body 17 The peripheral part of rotation side base plate portion 16 abuts and keeps (clamping) convolution side base plate portion 16, thus allows for side base plate portion 16 of circling round Relative to the positioning radially of receiving opening 19.By making fixing screws 31 be retreated relative to screwed hole 32, convolution can be adjusted Side base plate portion 16 relative to receiving opening 19 position.In addition, according to expectation, can also use binding agent and by the phase of fixing screws 31 Fixed for convolution scroll pedestal 18.Position of the convolution side base plate portion 16 relative to receiving opening 19 is determined using fixing screws 31 After putting, the position of fixing screws 31 is fixed, and can make convolution scroll main body 17 axially (with side base plate portion of circling round The vertical direction of 16 plate face) on dismounted relative to convolution scroll pedestal 18.In order to prevent from convolution scroll main body 17 to The heat transfer of scroll of circling round pedestal 18, preferably fixing screws 31 are also by the low material shape of thermal conductivity ratio convolution scroll pedestal 18 Into being formed in the present embodiment by stainless steel.It should be noted that in the case of structure as use, foregoing lock Rationed marketing 24 is configured to coordinate and chimeric by gap with pin-and-hole 25.
<Force application component>
In addition, according to the convolute-hydrodynamic mechanics 1 of present embodiment, in the core shift axle portion 8 of all bent axles 3, in rotary shaft Holding the gap setting between 29 outer ring and the bearing hole 33 for scroll 2 of circling round has the force-applying piece 57 of annular shape.Thus, circling round During the convolution of scroll 2, even if convolution scroll 2 is vibrated relative to bent axle 3 under the influence of centrifugal force, it can also suppress to circle round Gap between the bearing hole 33 of the outer ring of bearing 29 and 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, as shown in Fig. 2 left-half, in the state of the core shift axle portion 8 of bent axle 3 configures towards the side that most keeps left, return Vortex rotating part 2 is vibrated towards left side under the influence of centrifugal force, and load is applied 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 as to which fixed scroll body 50 and convolution scroll body 6 will approach.However, pass through force Part 57 controls the load, so as to suppress the gap X to circle round between the outer ring of bearing 29 and the bearing hole 33 for scroll 2 of circling round It is landfilled, the gap Y between the side of fixed scroll body 50 and the scroll body 6 that circles round can be remained and wish gap.Even if in addition, Assuming that the gap X between the bearing hole 33 of the outer ring of convolution bearing 29 and scroll 2 of circling round is filled completely, can also exert a force Impact is relaxed in the presence of part 57, the breakage of each scroll body 50,6 can be prevented., can along with the convolution of convolution scroll 2 Such act on continuously is realized successively along the circumference of bent axle 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 part be relaxed.Further, since being capable of adjust automatically whirlpool Gap Y between scroll 50,6, thus, it is also possible to make the stable performance of convolute-hydrodynamic mechanics 1.
<Bent axial locating structure>
In addition, according to the convolute-hydrodynamic mechanics 1 of present embodiment, first step portion 3a and second are set in bent axle 3 Rank portion 3b, first step portion 3a is used for the positioning towards the side of fixed scroll 5, second step portion 3b is used for towards convolution scroll The positioning of 2 sides, thus easily realize the positioning of axial each scroll 2,5 relative to each bent axle 3.In other words, by protect The bearing bearing surface for holding the second outside plate 12 of the housing 4 of fixed scroll 5 (abuts stepped with the upper surface of second bearing 37 Portion) on the basis of assemble each component, so as to mechanically determine the axial location of convolution scroll 2.Moreover, it is arranged at 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 direction gap Y adjustment function.
<The holding construction of the convolution scroll of bent axle>
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 bent axle 3 and fixed.At this In embodiment, two convolution bearings 29 by up and down it is overlapping in a manner of be pressed into core shift axle portion 8.Now, the rotary shaft of lower section The lower surface for holding 29 inner ring abuts with second step portion 3b.The upper end for being additionally, since core shift axle portion 8 is threaded portion, therefore, The second fixing nut 56 is screwed into the threaded portion.Thus, circle round bearing 29 inner ring to sandwich second step portion 3b and fixed spiral shell Mode between mother 56 is fixed.
On the other hand, it is spaced apart in the outer ring of convolution bearing 29 with the bearing hole 33 (large diameter hole 33a) of convolution scroll 2 Slightly gap, and have the force-applying piece 57 of annular shape in the gap setting.The force-applying piece 57 can be flexible ring (such as O-ring), or stiff ring (such as resin ring of engineering plastics).If it should be noted that 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 big footpath that outer ring is sized greatly.In addition, in the present embodiment, the outer peripheral face circumferentially shape in the outer ring of convolution bearing 29 Into the fitting recess for thering is the inner peripheral portion for force-applying piece 57 to be embedded in.Moreover, the inner peripheral portion of circular force-applying piece 57 is embedded into outer ring Fitting recess, 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 replacing Structure, and the inner peripheral surface in bearing hole 33 sets fitting recess, and the peripheral part of the force-applying piece 57 of annular shape is embedded into bearing hole 33 Fitting recess, 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 bearing hole 33 of the outer ring of convolution bearing 29 and convolution scroll pedestal 18.Need what is illustrated It is, in the present embodiment, the position at two up and down of each outer peripheral face of the bearing 29 in outer ring that circle round, via the force-applying piece of annular shape 57 and be held in bearing hole 33.
Moreover, on convolution scroll pedestal 18, it is fixed with all wall upper surfaces of bearing hole 33 by bolt 59 Determine ring 58.The retainer ring 58 can allow movement of the scroll 2 relative to the radial direction of outer ring of circling round, and limit the movement of axial direction.
Rotated as core shift axle portion 8 with the concentric arrangement of bearing hole 33, in the present embodiment, convolution bearing 29 Gap (one side) X between the outer peripheral face of outer ring and the large diameter hole 33a of bearing hole 33 inner peripheral surface be less than fixed scroll body 50 with The minimum setting value (two in the state of of gap (gap of the radial direction 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 and fills the gap X under the influence of centrifugal force, so as to Convolution scroll body 6 will be collided fixed scroll body 50, due to bearing hole 33 large diameter hole 33a inner peripheral surface first with convolution The outer peripheral face 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.
So, using the force-applying piece 57 of annular shape come keep the circling round outer peripheral face of bearing 29 and large diameter hole 33a inner peripheral surface Between gap.Thus, the gap circled round between the outer ring of bearing 29 and the bearing hole 33 for scroll 2 of circling round is filled out by force-applying piece 57 Bury, and in the case where that elastic deformation can occur, the adjustment in gap can be realized.
<Convolution scroll main body and the heat-insulated of scroll pedestal that circle round by middleware>
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 overlapping and be 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 26 The middleware 30 of sheet.In other words, passed through for fixing the bolt 28 of convolution scroll main body 17 to 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 screwed hole 27 of part pedestal 18.
Convolution scroll main body 17 fixed relative to convolution scroll pedestal 18 by 12 bolts 28, but half wherein Opening position using middleware 30 as thermal insulation barriers 30A, remaining half opening position using middleware 30 as separator 30B.Specifically Ground said, a pair of recesses 26 of corresponding configuration and this is installed in each corner of the convolution scroll pedestal 18 with roughly triangular shape Between a pair of projecting pieces 22 of a pair of recesses 26, along the circumference of receiving opening 19, for example according to separator 30B, thermal insulation barriers 30A, Thermal insulation barriers 30A and separator 30B order set middleware 30.
Thermal insulation barriers 30A and separator 30B is all formed as shape and size substantially identical to each other, but can also be according to feelings Condition it is different and different.By using the corresponding separator 30B of the thickness with thermal insulation barriers 30A, hardness, part is easily thermally shielded 30A material is selected.In addition, as described later, if forming separator 30B by metal material, thickness and precision is easily realized, also can It is enough to suppress the deformation because of caused by the fastening load of bolt 28.In addition to thermal insulation barriers 30A, also recess 26 and projecting piece 22 it Between sandwich metal separator 30B, thus, it is possible to the scroll main body 17 that regularly maintains to circle round relative to convolution scroll base The setting height of seat 18, therefore, convolution scroll 2 is fixed with the configuration on the above-below direction of fixed scroll 5, can be suppressed The clearance of the opening 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 thermal conductivity ratio low material of scroll pedestal 18 of circling round.From this Point sets out, and in the case where middleware 30 is foregoing separator 30B, separator 30B also serves as a kind of thermal insulation barriers and plays work( 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 ceramic or separator 30B of plastic thermal insulation barriers 30A or stainless steel.Moreover, as above institute State, the convolution side base plate portion 16 of convolution scroll main body 17 is with the inner peripheral surface of receiving opening 19 and the periphery of convolution side base plate portion 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 26 and convolution scroll main body 17, not only the lower surface of the bottom surface of recess 26 and projecting piece 22 across Middleware 30 and be not directly contacted with, and by formed than projecting piece 22 big one enclose recess 26, so as to recess 26 side with The outer rim of projecting piece 22 is also not directly contacted with.In addition, except for fixing convolution scroll main body to convolution scroll pedestal 18 Outside 17 bolt 28, further preferably stop pin 24 also by thermal conductivity ratio circle round the low material of scroll 18 (aluminium alloys) of pedestal ( This is stainless steel) 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, in addition to heat-insulated by middleware 30, it is embedded into convolution scroll base in convolution scroll main body 17 In the state of the receiving opening 19 of seat 18, between being formed between the outer peripheral face of convolution side base plate portion 16 and the inner peripheral surface of receiving opening 19 Gap.Thus, turning into prevents the construction of the heat transfer from convolution scroll main body 17 to convolution scroll pedestal 18.
<By middleware fixed scroll and housing it is heat-insulated>
Situation with scroll 2 of circling round is similarly, for fixed scroll 5, in order to which protection setting is in the first axle of housing 4 36 and second bearing 37 (more specifically preventing lubricant from using up) are held, is preferably prevented from the biography from fixed scroll 5 to housing 4 Heat.Therefore, as shown in Fig. 2 and Fig. 4, fixed scroll 5 is overlapping without directly connecing preferably across the second middleware 54 with housing 4 Touch.
Specifically, it is the flange 15 of housing 4 is overlapping across middleware 54 with the affixed side baseplate part 20 of fixed scroll 5 .The middleware 54 can be the flange 15 for being used to the affixed side baseplate part 20 of fixed scroll 5 being fixed on housing 4 The shim-like that bolt 53 passes through, or the circumferential overall overlapping annular shape with the flange 15 of housing 4.In addition, with convolution The situation of 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 housing 4.
Moreover, the affixed side baseplate part 20 of fixed scroll 5 is with open pore 7A inner peripheral surface and affixed side baseplate part 20 The mode of spaced apart at gaps of outer peripheral face be embedded into the open pore 7A of housing 4.Or the even if position of the flange 15 in housing 4 Place is put, the periphery scroll body 52 of fixed scroll 5 is also between the outer peripheral face of the inner peripheral surface of flange 15 and periphery scroll body 52 The mode for separating gap is embedded in.In addition, in addition to for fixed scroll 5 to be fixed on into the bolt 53 of housing 4, preferably lock Pin 55 can also be formed by the low material of thermal conductivity ratio housing 4 (being herein stainless steel).In such manner, it is possible to prevent from fixed scroll 5 heat transfer to housing 4, realize the protection of clutch shaft bearing 36 and second bearing 37.
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 be changed.
For example, in the above-described embodiment, fixed scroll 5 and housing 4 can also be integrally formed.Specifically, also may be used 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, the wind of cooling can also be set in the peripheral part of convolution scroll pedestal 18 Fan.For example, it is also possible to the outer peripheral face in convolution scroll pedestal 18 circumferentially, equally spaced sets the fan that extends towards outside. Now, fan can also be integrally formed with convolution scroll pedestal 18, can also be with the peripheral part weight for the scroll pedestal 18 that circles round It is folded and integrated.In the latter case, can also be at both in order to improve the close property of convolution scroll pedestal 18 and fan Between sandwiched fin.By setting fan in convolution scroll pedestal 18, so that when scroll 2 of circling round has carried out convolution, Because of circumnutation generation and the forced convertion heat transfer of extraneous air, the cooling of convolution scroll 2 is promoted.
In addition, by convolution scroll pedestal 18 peripheral part formed appropriate groove (such as convolution scroll pedestal On 18 thickness direction separation and circumferentially extend the rectangular-shaped groove that towards convolution scroll pedestal 18 respectively), it may have with wind Fan same action effect.By circumferentially setting multiple grooves in the peripheral part of convolution scroll pedestal 18, by increasing capacitance it is possible to increase pass Hot area, effectively realize air cooling.In addition, by being set to rectangular-shaped groove, so as to which intensity decreases are also smaller, cooling air Flowing non axial flowing as the direction at a right angle with axle, therefore, will not hinder flowing of the air relative to groove, also can Effectively carry out the air cooling of convolution scroll 2.
In addition, in the above-described embodiment, especially in affixed side baseplate part 20, fixed scroll 5 can also be carried out Air cools down or water cooling.For example, it is also possible in the affixed side baseplate part 20 of fixed scroll 5, with the phase of fixed scroll body 50 It is provided for being formed the sheathing member in water flowing portion between the face tossed about or the component overlapped, water is circulated in the water flowing portion.
In addition, in the above-described embodiment, convolution scroll master is installed in convolution scroll pedestal 18 in top view In the case of 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 set in convolution scroll pedestal 18 more than appropriate balanced adjustment 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, do not expand the profile of convolution scroll pedestal 18, it becomes possible to obtain convolution scroll 2 overall balances.If it should be noted that it is being arranged at the remaining wall portion display unit code of convolution scroll pedestal 18, portion Part management also becomes easy.
In addition, in the above-described embodiment, the piece of sheet packing 21, fixed scroll body 50 for the scroll body 6 that circles round More than any of peripheral seal 52A of shape seal 51 and periphery scroll body 52 seal, can also omit it Set.In this case, scroll 5 is easily fixed relative to the dismounting of housing 4, convolution scroll main body 17 relative to returning The dismounting of vortex rotating part pedestal 18, therefore also can easily carry out the maintenance of inside.Therefore, it is possible to easily carry out part Surface treatment or the engaging-in elimination of the reply to raw material, foreign matter, internal cleaning etc..
In addition, in the above-described embodiment, housing 4 is formed as a generally rectangular under top view, but is not limited to this, Toroidal, triangle can be formed as, other are polygon-shaped.
In addition, in the above-described embodiment, flange 15 is set in the reception hole 7 of housing 4, overlappingly installed in the flange 15 The peripheral part of the affixed side baseplate part 20 of fixed scroll 5, but the setting of flange 15 can also be omitted, and above and below housing 4 Surface (upper surface of the first outside plate 11, the lower surface of the second outside plate 12) 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, using bolt 53 etc., fixed scroll 5 is dismounted relative to housing 4 .
In addition, in the above-described embodiment, the radical of bent axle 3 is set to three, but more than four can also be set to.At this In the case of, one therein can be set to drive bent axle 3A, be set to 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 the outer ring that the force-applying piece 57 of annular shape is arranged to core shift axle portion 8 and the scroll pedestal that circles round Gap between 18 bearing hole 33, then the force-applying piece 57 of annular shape is arranged to outer ring and the guided rings of core shift axle portion 8 Gap between endoporus.In such manner, it is possible to realize the position adjustment of convolution scroll 2 and the radial direction of bent axle 3.
In addition, in the above-described embodiment, possess multiple convolution bearings 29 as the bearing for keeping core shift axle portion 8, but In addition to the convolution bearing 29 overlaps each other except end face each other, in end surfaces adjuster can also and overlapping.Adjuster example Such as be formed as cylindric and be configured at outer ring.In such manner, it is possible to realize convolution scroll 2 and the axial position adjustment of bent axle 3.Together Sample, even if in the case where convolution bearing 29 is one, adjuster can be also used, to realize convolution scroll 2 and bent axle 3 The position adjustment of axial direction.

Claims (3)

1. a kind of convolute-hydrodynamic mechanics, wherein,
The convolute-hydrodynamic mechanics possess：
Fixed scroll, it is provided with gyrate fixed scroll body in the plate face of affixed side baseplate part；
Circle round scroll main body, its convolution side base plate portion plate face be provided with engaged with the fixed scroll body it is gyrate Circle round scroll body, also, is provided with the multiple of the inner side extension from the end face of the peripheral part of the convolution side base plate portion radially Notch；
Circle round scroll pedestal, and it fixes the convolution scroll main body by the fastening member for inserting the peripheral part, also, It is correspondingly provided with entering the notch in the state of the convolution scroll main body is secured with the notch Multiple bearing portions of inner side；And
Multiple bent axles, they are provided with the core shift axle portion towards bearing portion insertion.
2. convolute-hydrodynamic mechanics according to claim 1, wherein,
In the convolution side base plate portion, 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 for storing the projecting piece is provided with 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 base plate portion,
A pair of fixed scrolls are arranged at the both sides of the convolution side base plate portion,
The convolution scroll pedestal is configured to, and can dismount the convolution whirlpool from one side relative to the hole set in the central portion Rotating part main body.
CN201710406077.2A 2016-08-10 2017-06-01 Convolute-hydrodynamic mechanics Active CN107725361B (en)

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