CN101573536A

CN101573536A - Device and method for positioning fixed scroll

Info

Publication number: CN101573536A
Application number: CNA2007800482619A
Authority: CN
Inventors: 广内隆; 诹佐利浩
Original assignee: Daikin Industries Ltd
Current assignee: Daikin Industries Ltd
Priority date: 2006-12-28
Filing date: 2007-12-21
Publication date: 2009-11-04
Anticipated expiration: 2027-12-21
Also published as: JP2008163836A; EP2096311A1; WO2008081759A1; EP2096311A4; JP4135028B2; CN101573536B

Abstract

When a fixed scroll (34) is positioned by moving it in the X-axis direction and the Y-axis direction while a scroll fluid machine is assembled, the moving direction of the fixed scroll (34) is determined according to the phase of an orbiting scroll (31) to enhance the positioning accuracy by surely preventing the fixed scroll (34) from rotating. When the outer peripheral surface of a movable-side wrap is brought into contact with the inner peripheral surface of a fixed-side wrap and the fixed scroll (34) is pushed back by the movable-side wrap when the orbiting scroll (31) is inverted after the fixed scroll (34) is moved, the portion where the outer peripheral surface of the fixed-side wrap is separated from the inner peripheral surface of the movable-side wrap (closest portion) when the fixed scroll (34) is moved is detected, as a wrap-to-wrap contact position, by a position detection mechanism (65). The position detection is performed at multiple positions to determine the center of the fixed scroll (34) for positioning.

Description

The positioning device of fixed scroll and localization method

Technical field

The present invention relates to a kind of apparatus and method that when the assembling convolute-hydrodynamic mechanics, fixed scroll positioned.

Background technique

Up to the present, convolute-hydrodynamic mechanics is widely used in the refrigerant circuit that is arranged on air conditioner etc. refrigeration agent is carried out in compressor for compressing etc.In this convolute-hydrodynamic mechanics, be formed with vortex shape scroll wrap (wrap) on fixed scroll and the moving scroll respectively, being meshing with each other by the scroll wrap of quiet side and moving side forms fluid chamber.In this convolute-hydrodynamic mechanics, moving scroll is carried out revolution motion, and the volume of fluid chamber is followed in this and constantly changed.For example, in scroll compressor, fluid is drawn into to after in the fluid chamber before the closed condition, and the volume that has become the fluid chamber of closed condition will reduce, and after the fluid in the fluid chamber was compressed, fluid was ejected when being communicated with ejiction opening in fluid chamber.

Like this, in convolute-hydrodynamic mechanics, moving scroll revolves round the sun under its scroll wrap and state that the scroll wrap of fixed scroll is meshed.Here, if in the process that moving scroll revolves round the sun, the scroll wrap of moving scroll impinges upon on the scroll wrap of fixed scroll consumingly, and moving scroll just can not worked reposefully.Therefore, for scroll is worked reposefully, the scroll wrap that just fixed scroll correctly need be arranged in the moving scroll that is revolving round the sun can not collided consumingly on the position on the scroll wrap of fixed scroll (always being equivalent to that position of the micro-gap of oil slick thickness in formation between moving scroll and the fixed scroll in the process that moving scroll revolves round the sun).Just because of this, just need when the assembling convolute-hydrodynamic mechanics, correctly position fixed scroll.Method in order to the location of carrying out such fixed scroll is for example disclosed in the patent documentation 1.

Be performed such the location under the positioning device of in patent documentation 1, being put down in writing.At first, being ready to will moving scroll, the lid part of the bearing of the crankshaft that engages with moving scroll, formation crankshaft is combined into one resulting assembly body afterwards.Next, allow moving scroll engagement in fixed scroll and this assembly body, and under this state with the rotation of motor driven crankshaft.Then, detect the change allow crankshaft rotate needed moment of torsion, the degree that moving scroll is contacted with fixed scroll according to the change of this moment of torsion, contact direction (contact position) etc. and conclude.Afterwards, the degree that contacts with fixed scroll according to this moving scroll, contact direction are calculated the distance that allow this fixed scroll move, direction etc.At last, according to this result of calculation, Yi Bian push fixed scroll to lid part, Yi Bian fixed scroll is applied along mutually orthogonal X-axis direction and the impact force of Y direction (impact force of moment), allow this fixed scroll move.

Patent documentation 1: Japanese publication communique spy opens the 2006-207528 communique

The technical problem that-invention will solve-

In above-mentioned patent documentation 1 disclosed device, the permission fixed scroll is parallel to X-axis direction and Y direction moves, and on the other hand, is provided with the guiding element that frictionally limits this fixed scroll rotation, and fixed scroll is urged on lid part by this guiding element.So when above-mentioned fixed scroll was subjected to impact force, fixed scroll will not rotate basically because of described frictional force, only parallel moving.

But, if the scroll wrap at fixed scroll touches under the state of the scroll wrap of moving scroll, impact force towards the direction that this contact force is increased (has for example imposed on fixed scroll, unit 70 from this figure right side under the state of Figure 25 applies impact force), impact force will surpass frictional force, so, although the rotation of fixed scroll is restricted, fixed scroll also also has the possibility of rotation.The fixed scroll rotation just can not correctly position fixed scroll.And, if not rotated, fixed scroll reduces impulse force power, and it is littler than frictional force that impact force will become, and fixed scroll just might not can move along X-axis direction, Y direction.

Summary of the invention

The present invention researchs and develops out for addressing the above problem just.Its purpose is:

Under the situation of assembling convolute-hydrodynamic mechanics, allow fixed scroll along X-axis direction and Y direction move fixed scroll positioned when, prevent the fixed scroll rotation reliably, thereby Location accuracy improved.

-in order to the technological scheme of dealing with problems-

The invention of first aspect is a prerequisite with a kind of positioning device of fixed scroll, be used for the assembling process at convolute-hydrodynamic mechanics 10, the position relation of the moving side scroll wrap 32 that quiet side scroll wrap 35 that is had according to fixed scroll 34 and moving scroll 31 are had positions fixed scroll 34.The positioning device of this fixed scroll comprises: component for fixing 63, Phase detection mechanism 90, position detecting mechanism 65, mobile mechanism 75 and control unit 80.This component for fixing 63 will be to moving scroll 31, assembling with the cover plate part 36 of crankshaft 20 that should moving scroll 31 engages and the bearing that constitutes this crankshaft 20 and the assembly body 11 that becomes one is fixed.The phase place or the angle of swing of described moving scroll 31 detects in this Phase detection mechanism 90.This position detecting mechanism 65 detects the position of described fixed scroll 34.The fixed scroll 34 of described moving scroll 31 engagements of these mobile mechanism's 75 transferences moves.This control unit 80 is controlled described mobile mechanism 75 with the contact condition of moving side scroll wrap 32 according to described quiet side scroll wrap 35.

This positioning device is characterised in that: described control unit 80 comprises controller 80.This controller 80 is according to by the phase place of described Phase detection mechanism 90 detected moving scroll 31 or the movement direction of angle of swing decision fixed scroll 34, simultaneously, if relevant when fixed scroll 34 being moved by described mobile mechanism 75 outer circumferential face of quiet side scroll wrap 35 leave the part of the inner peripheral surface of moving side scroll wrap 32, when fixed scroll 34 moves moving scroll 31 counter-rotatings of relief, the outer circumferential face of moving side scroll wrap 32 contacts with the inner peripheral surface of quiet side scroll wrap 35, fixed scroll 34 is pushed gets back to moving side scroll wrap 32, just by position detecting mechanism 65 with this position as scroll wrap 32, contact position between 35 detects, and carry out this position probing in a plurality of places, the central position that determines fixed scroll 34 thus positions.In addition, under said structure, " outer circumferential face of quiet side scroll wrap 35 leaves the part of the inner peripheral surface of moving side scroll wrap 32 when by described mobile mechanism 75 fixed scroll 34 being moved " has a scope, is in contact with one another or becomes established part under the state of minimum clearance but preferably leave scroll wrap 32,35.And, when judging the counter-rotating of moving scroll 31, need only after the displacement situation judgement of fixed scroll 34 allows more than the scroll 31 Rotate 180 degree, whether two

scroll wrap

32,35 have contacted and have got final product.

In the invention of this first aspect, under the state that assembly body 11 is fixed on the positioning device, mobile mechanism 75 is by control unit (controller) 80 controls, and fixed scroll 34 is positioned.Particularly, at first,, confirm that the quiet side scroll wrap 35 and the position of moving side scroll wrap 32 concern by the phase place (angle of swing) that moving scroll 31 detects in Phase detection mechanism 90.Next, allow mobile mechanism 75 work allow fixed scroll 34 towards the outer circumferential face in the quiet side scroll wrap 35 of described established part leave the inner peripheral surface of moving side scroll wrap 32 direction (following be called simply scroll

wrap

32,35 mutually away from direction) move, allow scroll 31 reverse afterwards again, detect two

scroll wrap

32,35 by position detection component 65 and contacted (outer circumferential face of moving side scroll wrap 32 and the inner peripheral surface of quiet side scroll wrap 35 contact).That is to say, because if two scroll wrap, 32,35 contacts this moment, then fixed scroll 34 is pushed and gets back to moving scroll 31 and displacement, so make the judgement that two

scroll wrap

32,35 have contacted.On the contrary, if fixed scroll 34 invariant positions just think that two

scroll wrap

32,35 contact as yet, so till 32,35 contacts of two scroll wrap, repeat the counter-rotating of fixed scroll 34 always along the mobile and moving scroll 31 of described direction.The fixed scroll 34 of this moment whenever move once amount of movement for example be from several microns to tens microns about.And, because repeat same operation, obtain the central position of fixed scroll 34 in a plurality of places.So utilize mobile mechanism 75 to allow fixed scroll 34 move to this central position.

The invention of second aspect is such, in the invention of first aspect, described mobile mechanism 75 comprises and impacts assembly 70, this impacts assembly 70 and under the state that described fixed scroll 34 is pressed on the described cover plate part 36 impact force is imposed on this fixed scroll 34, and described fixed scroll 34 is moved.

In the invention of this second aspect, fixed scroll 34 receives and moves from the impact force that impacts assembly 70.If under the state that described fixed scroll 34 is pressed on the described cover plate part 36, from impacting assembly 70 impact force is imposed on this fixed scroll 34, just can make described fixed scroll 34 move a slight distance.

The invention of the third aspect is such, first or the invention of second aspect in, the described mobile mechanism 75 of formation when moving scroll 31 is rotated action, allows fixed scroll 34 move.

In the invention of this third aspect, Yi Bian allow scroll 31 rotation, detect the angle of swing of these moving scroll 31 on one side by Phase detection mechanism 90, allow fixed scroll 34 towards

scroll wrap

32,35 mutually away from direction move, allow scroll 31 reverse afterwards.Carry out this operation in a plurality of positions, determine a plurality of contact positions of two

scroll wrap

32,35, thereby with fixed scroll 34 location.

The invention of fourth aspect is such, in the invention of either side, comprises guiding element 41 first in the third aspect, and this guiding element 41 does not change the posture of fixed scroll 34, allows fixed scroll 34 to be parallel to mutually orthogonal X-axis direction and Y direction moves; Allow X-axis direction that fixed scrolls 34 move and Y direction and impose on the direction of locomotivity (impact force) of fixed scroll 34 by described mobile mechanism 75 consistent by described guiding element 41.

In the invention of this fourth aspect, because that described guiding element 41 fixed scrolls 34 mobile obtained the X-axis direction that allows and Y direction and imposed on the direction of locomotivity of fixed scroll 34 by described mobile mechanism 75 is consistent.Therefore, can make fixed scroll 34 towards

scroll wrap

32,35 mutually away from direction move, moreover, can also prevent fixed scroll 34 rotations reliably.

The invention of the 5th aspect is such, and in the invention of fourth aspect, the described mobile mechanism 75 of formation allows fixed scroll 34 move to position according to the order of X-axis direction, Y direction, X-axis direction.

In the invention aspect the 5th, center for fixed scroll 34 at X-axis direction earlier, carry out at Y direction, and then X-axis direction is carried out, fixed scroll 34 just is positioned like this.

The invention of the 6th aspect is such, in the invention aspect the 4th or the 5th, the described mobile mechanism 75 that constitutes, after the two ends of the movable range that detects fixed scroll 34 by 65 pairs of X-axis directions of position detecting mechanism and Y direction respectively, again this fixed scroll 34 is positioned at the central authorities of this movable range.

In the invention aspect the 6th, be X-axis direction and Y direction are detected the two ends of movable range of fixed scroll 34 respectively by position detecting mechanism 65 after, again fixed scroll 34 be positioned at the central authorities of this movable range.

The invention of the 7th aspect is such, aspect first to the 6th in the invention of either side, the lubricant oil of the movable part in the described assembly body 11, the refrigerating machine oil viscosity of the scroll compressor 10 after the ratio of viscosities assembling is low.

If use full-bodied oil, especially when outside air temperature was lower, oil just can not be supplied with bearing equably, under the low speed rotation in positioning step, oil slick thickness will be inhomogeneous, and assembling just might be carried out under the state that misplaces that centers of crankshaft 20.With respect to this, in the invention aspect the 7th, the axle dislocation of crankshaft when using low viscous oil just can avoid assembling.

The invention of eight aspect is a prerequisite with a kind of localization method of fixed scroll, the localization method of this fixed scroll 34 is in order in the assembling process of convolute-hydrodynamic mechanics 10, scroll wrap 35 that is had according to fixed scroll 34 and the position of the moving scroll 31 described scroll wrap that have 32 relation position fixed scroll 34, the localization method of this fixed scroll comprises: fixing step and positioning step, in this fixing step, to move scroll 31, the cover plate part 36 of crankshaft 20 that engages with this moving scroll 31 and the bearing that constitutes this crankshaft 20 fits together, the fixed-site that makes described fixed scroll 34 become the assembly body 11 of one with described moving scroll 31 engagements is got off, in this positioning step, after described fixing step, with the contact condition of moving side scroll wrap 32 position of described fixed scroll 34 is regulated according to described quiet side scroll wrap 35.

In this localization method, in described positioning step, according to the phase place of moving scroll 31 or the movement direction of angle of swing decision fixed scroll 34, simultaneously, if relevant when fixed scroll 34 being moved by described mobile mechanism 75 outer circumferential face of quiet side scroll wrap 35 leave the part of the inner peripheral surface of moving side scroll wrap 32, when fixed scroll 34 moves moving scroll 31 counter-rotatings of relief, the outer circumferential face of moving side scroll wrap 32 contacts with the inner peripheral surface of quiet side scroll wrap 35, fixed scroll 34 is pushed gets back to moving side scroll wrap 32, then with this position as scroll wrap 32, contact position between 35 detects, and carry out this position probing in a plurality of places, the central position that determines fixed scroll 34 thus positions.This moment is also the same with the invention of first aspect, " outer circumferential face of quiet side scroll wrap 35 leaves the part of the inner peripheral surface of moving side scroll wrap 32 when by described mobile mechanism 75 fixed scroll 34 being moved " has a scope, is in contact with one another or becomes established part under the state of minimum clearance but preferably leave scroll wrap 32,35.And, when judging the counter-rotating of moving scroll 31, need only after the displacement situation judgement of fixed scroll 34 allows more than the scroll 31 Rotate 180 degree, whether two

scroll wrap

32,35 have contacted and have got final product.

In the invention of this eight aspect, the same with the invention of first aspect, at first, detect the phase place (angle of swing) of moving scroll 31, confirm that the quiet side scroll wrap 35 and the position of moving side scroll wrap 32 concern.Next, allow fixed scroll 34 along the outer circumferential face in the quiet side scroll wrap 35 of described established part leave the inner peripheral surface of moving side scroll wrap 32 direction (following be called simply scroll

wrap

scroll wrap

32,35 and contacted (outer circumferential face of moving side scroll wrap 32 and the inner peripheral surface of quiet side scroll wrap 35 contact).If fixed scroll 34 invariant positions think that then two

scroll wrap

32,35 contact as yet, so till 32,35 contacts of two scroll wrap, repeat the counter-rotating of fixed scroll 34 always along the mobile and moving scroll 31 of described direction.And, because repeat same operation in a plurality of places and obtain the central position of fixed scroll 34, so just fixed scroll 34 is positioned on this central position.

The invention of the 9th aspect is such, and in the invention of eight aspect, described positioning step is a posture that does not change fixed scroll 34, allows fixed scroll 34 be parallel to that orthogonal X-axis direction and Y direction move and to these fixed scroll 34 localization step.

In the invention aspect the 9th, be that the mobile of fixed scroll 34 is limited on X-axis direction and the Y direction, come fixed scroll 34 location, therefore, can prevent that fixed scroll 34 from rotating accidentally.

The invention of the tenth aspect is such, and in the invention aspect the 9th, described positioning step is that an order according to X-axis direction, Y direction, X-axis direction allows fixed scroll 34 move step to position.

In the invention aspect the tenth, the same with the invention of described the 5th aspect, center for fixed scroll 34 to X-axis direction earlier, carry out at Y direction again, and then X-axis direction is carried out, fixed scroll 34 just is positioned like this.

The invention of the tenth one side is such, in the invention aspect the 9th or the tenth, described positioning step be one after the two ends of the movable range that X-axis direction and Y direction is detected described fixed scroll 34 respectively, again this fixed scroll 34 is positioned at the step of the central authorities of this movable range.

In the tenth on the one hand invention, be after X-axis direction and Y direction are detected the two ends of movable range of fixed scroll 34 respectively, again fixed scroll 34 is positioned at the central authorities of this movable range.

The invention of the 12 aspect is such, and in the tenth on the one hand invention, described positioning step is one and carries out first operation, second the center step of operation of operation and the 3rd that centers that centers in order.Center in the operation first, repeat moving and the counter-rotating of moving scroll 31 of the first direction of fixed scroll 34 on the X-axis, with detect quiet side scroll wrap 35 and moving side scroll wrap 32 position contacting be decided to be first contact position of X-axis direction, repeat moving and the counter-rotating of moving scroll 31 of the second direction of fixed scroll 34 on the X-axis afterwards again, with detect quiet side scroll wrap 35 and moving side scroll wrap 32 position contacting be decided to be second contact position of X-axis direction, fixed scroll 34 is positioned on the central position of first contact position and second contact position at last.Center in the operation second, repeat moving and the counter-rotating of moving scroll 31 of the first direction of fixed scroll 34 on the Y-axis, with detect quiet side scroll wrap 35 and moving side scroll wrap 32 position contacting be decided to be first contact position of Y direction, repeat moving and the counter-rotating of moving scroll 31 of the second direction of fixed scroll 34 on the Y-axis afterwards again, with detect quiet side scroll wrap 35 and moving side scroll wrap 32 position contacting be decided to be second contact position of Y direction, fixed scroll 34 is positioned on the central position of first contact position and second contact position at last.Center in the operation the 3rd, repeat moving and the counter-rotating of moving scroll 31 of the first direction of fixed scroll 34 on the X-axis, with detect quiet side scroll wrap 35 and moving side scroll wrap 32 position contacting be decided to be first contact position of X-axis direction, repeat moving and the counter-rotating of moving scroll 31 of the second direction of fixed scroll 34 on the X-axis afterwards again, with detect quiet side scroll wrap 35 and moving side scroll wrap 32 position contacting be decided to be second contact position of X-axis direction, fixed scroll 34 is positioned on the central position of first contact position and second contact position at last.

In the invention aspect the 12, carry out first operation that centers earlier and fixed scroll 34 is positioned at the center of the movable range of X-axis, then carry out again second center operation with fixed scroll 34 be positioned at described X-axis in the heart and the center of the movable range of Y-axis, carry out the 3rd operation that centers at last, further correctly regulate the central position of fixed scroll 34 on X-axis.

The invention of the 13 aspect is such, and in the invention of either side, described positioning step is the step that a limit allows scroll 31 rotation limits that fixed scroll 34 is positioned aspect the 8th to the 12.Particularly way is as follows: also allow scroll 31 rotate when allowing fixed scroll 34 move, detect the phase place of this moving scroll 31, move constantly and the position probing moment to judge, fixed scroll 34 is located.

In the invention aspect the 13, allow scroll 31 rotate on one side, detect the angle of swing of this moving scroll 31 on one side, the movement direction that is in fixed scroll 34 in moving scroll 31 becomes when making two

scroll wrap

32,35 mutually away from the rotational position of the other side's direction, allow fixed scroll 34 move, detect the operation of the position of fixed scroll 34 in the zone opposite in a plurality of places, just can finish location fixed scroll 34 with it.

The effect of-invention-

According to the present invention, according to angle of swing by Phase detection mechanism 90 detected fixed scrolls 34, allow 75 work of described mobile mechanism and when making two

scroll wrap

32,35 after moving away from the other side's direction mutually, scroll 31 be reversed, detect fixed scroll 34 by described position detecting mechanism 65 and be pushed reverse side scroll wrap 32 and the words of displacement, just make the judgement that two

scroll wrap

32,35 have contacted, and, by carrying out this position probing in a plurality of places, the central position of decision fixed scroll 34 is to position.Because when fixed scroll 34 moves, fixed scroll 34 is to move away from the other side's directions mutually along two

scroll wrap

32,35, the phenomenon of rotating so can not take place fixed scroll 34 to receive the impact force of the direction that the contact force of pointing to two

scroll wrap

32,35 increases.Therefore, can more correctly obtain the center of fixed scroll 34 than prior art, and fixed scroll 34 correctly can be positioned at this central position.Besides, need not be for preventing that fixed scroll 34 from rotating through the earth and reducing the power that allows this fixed scroll 34 move.The result can also avoid fixed scroll 34 motionless.

According to the invention of described second aspect, under the state that described fixed scroll 34 is pressed on the described cover plate part 36, impact force is imposed on this fixed scroll 34 from impacting assembly 70, can make described fixed scroll 34 move a slight distance thus.Therefore to the Location accuracy height of fixed scroll 34.

Invention according to the described third aspect, allow scroll 31 rotate on one side, detect the phase place of this moving scroll 31 on one side, the movement direction that is in fixed scroll 34 in moving scroll 31 becomes when making two

scroll wrap

32,35 mutually away from the rotational position of the other side's direction, allow fixed scroll 34 move, detect the operation of the position of fixed scroll 34 in the zone opposite in a plurality of places, just can finish location fixed scroll 34 with it.That is to say, can allow fixed scroll 34 move in the zone that may impact (moving), can detect the position of fixed scroll 34 in zone in addition, contact, therefore in a rotary course, can do two work thereby can judge two scroll wrap 32,35.Besides, repeatedly carry out the startup of compressor motor 25 and stop, also can positioning fixed scroll 34.But locate and can increase needed cumulative time this moment.With respect to this, in the invention aspect this, cumulative time can be shortened.The result is that the producibility of scroll compressor 10 improves.

Invention according to described fourth aspect, make and allow that by above-mentioned guiding element 41 X-axis direction that fixed scroll 34 moves is consistent with the direction of the locomotivity that is imposed on fixed scroll 34 by described mobile mechanism 75 with Y direction, just can make fixed scroll 34 along

scroll wrap

32,35 mutually away from direction move, moreover, can also prevent fixed scroll 34 rotations reliably.The result is that Location accuracy further improves.

According to the invention of described the 5th aspect, center for fixed scroll 34 to X-axis direction earlier, carry out at Y direction again, and then X-axis direction is carried out, fixed scroll 34 just is positioned thus.Under being the state that do not come out as yet at the center on the Y direction, centering on the X-axis direction carry out for the first time, so may exist incorrect the time.Like this X-axis direction is carried out after twice, just can correctly locate fixed scroll 34.

According to the invention of the 6th aspect, be X-axis direction and Y direction are detected the two ends of movable range of fixed scroll 34 respectively by position detecting mechanism 65 after, again fixed scroll 34 is positioned at the central authorities of this movable range.Therefore, can correctly determine X-axis center and Y-axis center, fixed scroll 34 is located.Particularly, in the invention aspect the 5th, when fixed scroll 34 is centered, earlier X-axis direction is carried out, again Y direction is carried out, and then X-axis direction is carried out.At this moment, X-axis direction and Y direction are detected respectively after the two ends of movable range of fixed scroll 34, again the center of fixed scroll 34 is set in the central authorities of this movable range.Just because of this, so can be correctly to fixed scroll 34 location.

According to the invention of the 7th aspect, because use the low oil of refrigerator oil of the scroll compressor 10 after the ratio of viscosities assembling to make the lubricant oil of the movable part in the assembly body 11, so also can avoid the axle center dislocation of crankshaft when assembling.

Invention according to eight aspect, the same with the invention of described first aspect, according to angle of swing by Phase detection mechanism 90 detected fixed scrolls 34, allow 75 work of described mobile mechanism and make two

scroll wrap

32,35 when reversing scroll 31 after mutually moving away from the other side's direction, detect fixed scroll 34 by described position detecting mechanism 65 and be pushed reverse side scroll wrap 32 and the words of displacement, just make two

scroll wrap

32,35 judgements that contacted, and, by carrying out this position probing in a plurality of places, the central position of decision fixed scroll 34 is to position.At this moment, fixed scroll 34 moves away from the other side's directions mutually along two

scroll wrap

32,35 increases.Therefore, can more correctly obtain the center of fixed scroll 34 than prior art, and fixed scroll 34 correctly can be positioned at this central position.

According to the invention of described the 9th aspect, the mobile of fixed scroll 34 is limited on X-axis direction and the Y direction, prevented that fixed scroll 34 from rotating accidentally.Therefore can be correctly to fixed scroll 34 location.

According to the invention of described the tenth aspect, to centering of fixed scroll 34, be earlier X-axis direction to be carried out, again Y direction is carried out, and then X-axis direction is carried out.Under being the state that do not come out as yet at the center on the Y direction, centering on the X-axis direction carry out for the first time, so may exist incorrect the time.Like this X-axis direction is carried out after twice, just can correctly locate fixed scroll 34.

According to the described the tenth on the one hand invention, be after X-axis direction and Y direction are detected the two ends of movable range of fixed scroll 34 respectively, again fixed scroll 34 is positioned at the central authorities of this movable range.Therefore, can correctly determine the center of X-axis and the center of Y-axis, fixed scroll 34 is located.

Invention according to described the 12 aspect, carry out first operation that centers earlier and fixed scroll 34 is positioned at the center of the movable range of X-axis, then carry out again second center operation with fixed scroll 34 be positioned at described X-axis in the heart and the center of the movable range of Y-axis, carry out the 3rd operation that centers at last, further correctly regulate the central position of fixed scroll 34 on X-axis.Therefore, can be correctly to fixed scroll 34 location.

Invention according to described the 13 aspect, allow scroll 31 rotate on one side, detect the angle of swing of this moving scroll 31 on one side, allow fixed scroll 34 move away from the other side's direction mutually along two

scroll wrap

32,35, and the operation that scroll 31 is reversed in a plurality of places, like this to fixed scroll 34 location.Because to fixed scroll 34 location in the process of moving scroll 31 rotations, so needed cumulative time of location is shortened.

The simple declaration of accompanying drawing

[Fig. 1] Fig. 1 is the longitudinal sectional view of the related convolute-hydrodynamic mechanics of embodiment of the present invention.

[Fig. 2] Fig. 2 is the transverse sectional view of compressing mechanism.

[Fig. 3] Fig. 3 is the structural drawing of the related positioning device of embodiment of the present invention.

[Fig. 4] Fig. 4 is the stereogram of the X-Y guide element of expression positioning device.

[Fig. 5] Fig. 5 is the allocation plan that impacts assembly in the positioning device.

[Fig. 6] Fig. 6 is the structural drawing that impacts assembly.

[Fig. 7] Fig. 7 represents the skeleton diagram how positioning device controlled.

[Fig. 8] Fig. 8 is a plan view of loading onto fixed scroll assembly body before.

[Fig. 9] Fig. 9 is a plan view of loading onto fixed scroll assembly body afterwards.

[Figure 10] Figure 10 is the plan view of scroll.

[Figure 11] Figure 11 is the plan view of fixed scroll.

[Figure 12] Figure 12 is the preparation first step figure of localization method involved in the present invention.

[Figure 13] Figure 13 is preparation second block diagram of localization method involved in the present invention.

[Figure 14] Figure 14 is the preparation third step figure of localization method involved in the present invention.

[Figure 15] Figure 15 is preparation the 4th block diagram of localization method involved in the present invention.

[Figure 16] Figure 16 is preparation the 5th block diagram of localization method involved in the present invention.

[Figure 17] Figure 17 is the figure that the step on the positioning device is moved assembly body in expression.

[Figure 18] Figure 18 is the first step figure that centers of localization method involved in the present invention.

[Figure 19] Figure 19 is second block diagram that centers of localization method involved in the present invention.

[Figure 20] Figure 20 is the third step figure that centers of localization method involved in the present invention.

[Figure 21] Figure 21 is the 4th block diagram that centers of localization method involved in the present invention.

[Figure 22] Figure 22 is the 5th block diagram that centers of localization method involved in the present invention.

[Figure 23] Figure 23 is the 6th block diagram that centers of localization method involved in the present invention.

[Figure 24] Figure 24 is the 7th block diagram that centers of localization method involved in the present invention.

[Figure 25] Figure 25 is the position of expression fixed scroll and the plan view that impacts the relation between the element.

[Figure 26] Figure 26 is the position of expression fixed scroll and the plan view that impacts the relation between the element.

[Figure 27] Figure 27 is the 8th block diagram that centers of localization method involved in the present invention.

[Figure 28] Figure 28 is the 9th block diagram that centers of localization method involved in the present invention.

The figure of [Figure 29] Figure 29 step that to be expression carry down assembly body from positioning device.

The explanation of symbol

10 convolute-hydrodynamic mechanics (scroll compressor)

11 assembly bodies

20 crankshafts

31 moving scroll

32 scroll wrap (moving side scroll wrap)

34 fixed scrolls

35 scroll wrap (quiet side scroll wrap)

36 cover plates (cover plate part)

40 positioning devices (mounting equipment centers)

41 guiding elements

63 position detecting mechanisms

65 position detecting mechanisms

70 impact assembly

75 mobile mechanisms

80 control units (controller)

90 Phase detection mechanisms

Embodiment

Below, describe embodiments of the present invention with reference to the accompanying drawings in detail.In addition, at first the structure that will utilize the scroll compressor 10 that the positioning device 40 of implementing the related localization method of this mode of execution assembles is described below, again this mode of execution related positioning device 40 and localization method are described afterwards.

The structure of-scroll compressor-

As shown in Figure 1, described scroll compressor 10 constitutes so-called totally-enclosed type compressor.This scroll compressor 10 comprises the housing 15 of the seal container shape that forms lengthwise.This housing 15 is made of a torso member 16 cylindraceous that forms lengthwise and the

end plate member

17,18 that forms bowl-shape, as to be installed in torso member 16 top and bottom respectively, and

end plate member

17,18 respectively is one.

In housing 15 inside, according to from bottom to top be sequentially set with lower bearing parts 23, compressor motor 25 and compressing mechanism 30; Housing 15 inside are provided with the crankshaft 20 that prolongs up and down.

Be fixed with the suction pipe 11 of the end plate member 17 that runs through upside on the housing 15, this suction pipe 11 is communicated with the suction port of compressing mechanism 30.On the housing 15, the spraying pipe 12 that runs through torso member 16 is arranged on the position between compressing mechanism 30 and the compressor motor 25.Low-pressure gas is inhaled in the compressing mechanism 30 via described suction pipe 11, and the pressurized gas that compressed in compressing mechanism 30 are full of after the following side space of the compressing mechanism 30 in the housing 15, from spraying pipe 12 ejections.Housing 15 inside, the superjacent air space S1 of compressing mechanism 30 becomes low-voltage space, and below space S 2 becomes high-pressure space.

Crankshaft 20 comprises main shaft part 21 and eccentric part 22.The upper end portion diameter of main shaft part 21 forms greatly a little.Eccentric part 22 forms than smaller cylindric of the diameter of the upper end portion of main shaft part 21, is standing on the upper-end surface that is arranged on main shaft part 21.The axle center of this eccentric part 22 is eccentric in the axle center of main shaft part 21.

Lower bearing parts 23 are fixed near the lower end of torso member 16 of housing 15.Core at lower bearing parts 23 is formed with sliding bearing 23a, and this sliding bearing is supporting the underpart of main shaft part 21, and this underpart rotation is free.

Compressor motor 25 is so-called brushless DC motors.This compressor motor 25 comprises stator 26 and rotor 27, constitutes drive motor.Stator 26 is fixed on the torso member 16 of housing 15.This stator 26 is electrically connected on the power supply terminal 19 on the torso member 16 that is arranged on housing 15.On the other hand, rotor 27 is arranged in the inboard of stator 26 and is fixed on the main shaft part 21 of crankshaft 20.

Compressing mechanism 30 comprises moving scroll 31, fixed scroll 34 and as the cover plate 36 of cover plate part 36.

Cover plate 36 forms discoideus that central part caves in, thickness is thicker, and its peripheral part engages with the upper end portion of torso member 16.The main shaft part 21 of crankshaft 20 runs through the central position that is inserted in cover plate 36.The bearing 36a that the main shaft part 21 that these cover plate 36 formations are supporting crankshaft 20 rotates freely.

The cylindric protuberance 33 that moving scroll 31 comprises moving side end panel 31a, founding the moving side scroll wrap 32 of the vortex wall shape that is arranged on its front one side (the top side among Fig. 1) and giving prominence at its back side one side (side below among Fig. 1).Though Fig. 1 does not show that this moving scroll 31 is loaded in cover plate part (above 36 via the Oldham's coupling shown in Figure 13 39.The eccentric part 22 of crankshaft 20 is inserted in the protuberance 33 of moving scroll 31.That is to say that moving scroll 31 engages with crankshaft 20.

Fixed scroll 34 forms thicker discoideus of thickness, and has quiet side end panel 34a.The quiet side scroll wrap 35 of vortex wall shape is arranged on the central position of this fixed scroll 34.From a following side fixed scroll 34 is carved, promptly formed quiet side scroll wrap 35.

As shown in Figure 2, in compressing mechanism 30, the quiet side scroll wrap 35 of fixed scroll 34 and the moving side scroll wrap 32 of moving scroll 31 mesh together.Be meshing with each other by quiet side scroll wrap 35 and moving side scroll wrap 32, just forming a plurality of pressing chambers 37 between the inner peripheral surface of the outer circumferential face of quiet side scroll wrap 35 and moving side scroll wrap 32 and between the outer circumferential face of the inner peripheral surface of quiet side scroll wrap 35 and moving side scroll wrap 32.

The positioning device of-fixed scroll-

Positioning device 40 in this mode of execution is in the process of the described scroll compressor 10 of assembling, according to the position relation of quiet side scroll wrap 35 and moving side scroll wrap 32 fixed scroll 34 is positioned.Particularly, this positioning device 40, when fixed scroll 34 being installed on the aftermentioned assembly body 11 that in the assembling process of scroll compressor 10, forms, regulating the position of fixed scroll 34, and make the position of fixed scroll 34 and moving scroll 31 concern optimization.

After torso member 16, cover plate 36, compressor motor 25, lower bearing parts 23, crankshaft 20 and moving scroll 31 be assembled into one, promptly obtain described assembly body 11.In this assembly body 11, cover plate 36, compressor motor 25 and lower bearing parts 23 are fixed on the torso member 16, moving scroll 31 with state that crankshaft 20 engages under be loaded on the cover plate 36.In this assembly body 11, the stator 26 and the power supply terminal 19 of compressor motor 25 are electrically connected.

Structure with reference to 3 pairs of described positioning devices 40 of figure describes.This positioning device 40 comprises first framework 45 and second framework 60.

First framework 45 comprises one piece of base plate 46, one piece of upper plate 47 and four pillar parts 48.This base plate 46 forms and is square shape when overlooking, and the approximate horizontal setting.Be provided with a pillar part 48 in each bight of base plate 46.Pillar part 48 runs through base plate 46, and the lower end of pillar part 48 is outstanding towards the below from base plate 46.Upper plate 47 is fixed on the upper end of upright four pillar parts 48 that are provided with.

On base plate 46 and central position is outstanding is provided with cylindric guide element 50.When being placed on assembly body 11 on the base plate 46, this guide element 50 is directed to torso member 16 on the assigned position, and the internal diameter of this guide element 50 is bigger a little than the external diameter of torso member 16.Through hole 52 is formed on the central authorities of base plate 46.This through hole 52 is and the circular port of guide element 50 concentrics, runs through base plate 46.

Rotating coder 53 via support 54 be installed in base plate 46 below.Rotating coder 53 is arranged in the below of through hole 52, and the rotating shaft 53a of rotating coder 53 extends upward towards through hole 52.Joiner 55 is installed on the rotating shaft 53a of rotating coder 53.The oil picker 20a that this joiner 55 will be arranged on the underpart of crankshaft 20 is linked together from through hole 52 part outstanding towards the below and the rotating shaft 53a of rotating coder 53.In addition, omit diagram oil picker 20a among Fig. 1, but as shown in Figure 3, oil picker 20a and crankshaft 20 are set to one.The oil pump that does not show is installed in this oil picker, and the fuel feeding road (not shown) that this oil picker will extend along the vertical direction via the central part at crankshaft 20 is supplied with lubricant oil the slide part of bearing, compressing mechanism 30 etc.

In order to press the pushing and pressing mechanism 56 of fixed scroll 34 to be installed on the upper plate 47 towards the below.This pushing and pressing mechanism 56 comprises the bar 57a that extends towards the below, and is arranged in the substantial middle of upper plate 47.Sectional area is greater than the top that parts 58 are installed in bar 57a of pinning of this bar 57a.Guiding element 41 described later be installed in this pin parts 58 below.The pushing and pressing mechanism 56 that is constituted utilizes cylinder 57 grades that bar 57a is sent, and allows thus pin parts 58 and guiding element 41 and move towards the below, and pushing force is imposed on fixed scroll 34.

Structure with reference to 4 pairs of guiding elements 41 of figure describes.Described guiding element 41 comprises: three depression bars 28 shown in base plate 59, mutually orthogonal X-axis slide rail 49a and Y-axis slide rail 49b, the linear motion bearing 51 that engages with Y-axis slide rail 49b with X-axis slide rail 49a and following Fig. 3 of being arranged on base plate 59.

X-axis slide rail 49a is made of two slide rail parts of equal in length.These two X-axis slide rail 49a arrange and are fixed on base plate 59 with the spaced and parallel of regulation.Y-axis slide rail 49b is made of two slide rail parts of equal in length.These two Y-axis slide rail 49b with the spaced and parallel of regulation arrange and be fixed on pin parts 58 below.

Such nail-like parts (spike) the parts 28a of nail below the lower end of each depression bar 28 is formed with the nail footwear that rotate in order to prevention fixed scroll 34, when fixed scroll 34 guiding element 41 pushing force is imposed on move under the state of fixed scroll 34 in, 28 of depression bars forbid that fixed scroll 34 slides with respect to guiding element 41.Because nail-like parts 28a is formed on the lower end of depression bar 28, thus on can producing on the surface of contact of depression bar 28 and fixed scroll 34 than the surface of contact of fixed scroll 34 and cover plate 36 also big frictional force.

The place that intersects at X-axis slide rail 49a and Y-axis slide rail 49b respectively is provided with a linear motion bearing 51.That is to say, on guiding element 41, add up to be provided with four linear motion bearings 51.Each linear motion bearing 51 is similar to cuboids, is formed with the groove of X-axis direction below linear motion bearing 51, is formed with the groove of Y direction on linear motion bearing 51.X-axis slide rail 49a is entrenched in the following groove of each linear motion bearing 51, and Y-axis slide rail 49b is entrenched in the top groove of each linear motion bearing 51, can not deviate from from Z-direction (direction vertical with the plane of base plate 59).Though do not show, a plurality of pellet parts are embedded in the groove of the X-axis direction of linear motion bearing 51 and Y direction.Each linear motion bearing 51 is one and contacts with Y-axis slide rail 49b with X-axis slide rail 49a by a plurality of pellet parts, the rotation guide structure that moves as the crow flies along slide rail.Therefore, pushing force is being imposed under the state of fixed scroll 34, guiding element 41 allows fixed scroll 34 to be parallel to mutually orthogonal X-axis direction and Y direction moves, but limits this fixed scroll 34 rotations.

Second framework 60 comprises frame shape parts 61 and four pillar parts 62, and is fixed on the base plate 46.The length of each pillar part 62 is shorter slightly than the height of the torso member 16 that constitutes assembly body 11.These four pillar parts 62 are standing respectively and are being arranged on the base plate 46, equally spaced be arranged in guide element 50 around.Frame shape parts 61 form and are quadrangle or circular frame shaped parts when overlooking, and are placed on four pillar parts 62.Frame shape parts 61 are fixed on each pillar part 62, and the top of assembly body 11 is surrounded.

Frame shape parts 61 are provided with the fastening device 63 in order to fixing assembly 11, and this fastening device 63 constitutes component for fixing.Fastening device 63 comprises a plurality of movable clamping heads 64 side-prominent in frame shape parts 61.Fastening device 63 is pressed into clamping head 64 on the outer circumferential face of the torso member 16 that constitutes assembly body 11, and the radially both sides clamping assembly body 11 from torso member 16 retrains assembly body 11 thus.For example on four positions of total on the radial line of X-axis direction and Y direction fastening device 63 being set gets final product.

Frame shape parts 61 be provided with on two position detecting mechanisms 65 and the X-axis and Y-axis on respectively have two add up to four impact assembly 70.Two position detecting mechanisms 65 are used to detect the position of fixed scroll 34 on X-axis direction and Y direction.For example can use Elmillimess 66 to make position detecting mechanism 65.Elmillimess 66 utilizes electrical signal that the position of measuring object, size etc. are measured.In addition, can replace Elmillimess 66 to make described position detecting mechanism 65 with other position measurement devices such as laser displacement gauges.The laser displacement gauge towards fixed scroll 34 irradiating laser light, utilizes the addendum modification of this fixed scroll 34 of reflected light measurement.

Each impacts assembly 70 and forms cylindricly, and is included in top one side and forms bossed head 74 (with reference to figure 6).These four impact assembly 70 and constitute the mobile mechanism 75 that impact force is imposed on fixed scroll 34 and allow this fixed scroll 34 move.

As shown in Figure 5, four impact assembly 70 is that the center is being arranged radially with the fixed scroll on the cover plate 36 of described assembly body 11 34, and mutual is 90 ° at interval.That is to say, two impact assembly 70 along fixed scroll 34 first radially (X-axis direction) arrange, remaining two impact assembly 70 along with this radially quadrature second radially (Y direction) arrange.Each state that impacts that assembly 70 presented is projection posture fixed scroll 34 1 sides of head 74 separately.That is to say, impact assembly 70 along good two of radial arrangement and face each other across fixed scroll 34.

First is radially parallel with the X-axis direction of described guiding element 41.Second is radially parallel with the Y direction of described guiding element 41.In other words, guiding element 41 is allowed X-axis direction that fixed scroll 34 moves and Y direction and is impacted assembly 70 to impose on the direction of impact force of fixed scroll 34 consistent by described.One imposes on fixed scroll 34 by the described assembly 70 that impacts with the impact force of X-axis direction, and X-axis slide rail 49a just is directed in the groove of X-axis direction of linear motion bearing 51, and fixed scroll 34 just moves on X-axis direction.One imposes on fixed scroll 34 by the described assembly 70 that impacts with the impact force of Y direction, and Y-axis slide rail 49b just is directed in the groove of Y direction of linear motion bearing 51, and fixed scroll 34 just moves on Y direction.

Describe with reference to 6 pairs of structures that impact assembly 70 of figure.Impact assembly 70 and comprise a main part 71 and a cylinder portion 100.The profile of main part 71 and cylinder portion 100 all roughly is cylindric, is arranged on the same axle.

Main part 71 comprises base portion 72, piezoelectric element 73 and head 74, do as a whole form cylindric.Particularly, in this main part 71, form columned base portion 72 and head 74 together and be arranged on the same axis, piezoelectric element 73 is clipped between base portion 72 and the head 74.Be formed with projection in the tip side of head 74 (that is side opposite) with piezoelectric element 73.In main part 71, if voltage is imposed on piezoelectric element 73, piezoelectric element 73 just along the axial elongation of main part 71, just follow in this and be pushed out (with reference to figure 6 (B)) by head 74.On the other hand, if stop piezoelectric element 73 energisings, the length of piezoelectric element 73 just returns to length at the beginning, and head 74 is just followed in this and shunk back (with reference to figure 6 (A)).

Cylinder portion 100 comprises cylinder 101, piston 102 and piston rod 103.Cylinder 101 forms the cylinder-like part of hollow, and piston 102 is inserted in the cylinder 101, can moving axially along cylinder 101.Piston rod 103 is arranged on the same axis with cylinder 101.The cardinal extremity of this piston rod 103 is connected on the piston 102, and extend towards the outside of cylinder 101 on the top.The end joined of the base portion 72 of the top of piston rod 103 and main part 71.The inside of cylinder 101 is divided into first air chamber 104 and second air chamber 105 by piston 102.First air conduit 106 is connected on first air chamber 104 of a side opposite with piston rod 103, and second air conduit 107 is connected on second air chamber 105 of piston rod 103 1 sides.

Impact in the assembly 70 described, if air feeds to first air chamber 104 from first air conduit 106, simultaneously, air is arranged to second air conduit 107 from second air chamber 105, piston 102 is just towards second air chamber, 105 1 side shiftings, and main part 71 just is sent to the tip side (left side among Fig. 6) that impacts assembly 70; If air feeds to second air chamber 105 from second air conduit 107, simultaneously, to first air conduit 106, piston 102 is just towards first air chamber, 104 1 side shiftings from first air chamber, 104 rows for air, and main part 71 just is withdrawn into cardinal extremity one side (right side among Fig. 6) that impacts assembly 70.

As shown in Figure 7, be provided with the driver 82 and the controller (control unit) 80 of frequency variator 81, frequency variator 81 in the described positioning device 40.Frequency variator 81 wherein and driver 82 constitute power supply unit 83.

The input side of frequency variator 81 is connected on the source power supply 85, and outlet side is connected on the power supply terminal 19 of described assembly body 11.On the other hand, the output signal of rotating coder 53 is transfused to driver 82.

Though in Fig. 7, do not show, in described positioning device 40, be provided with laser displacement gauge 91 (with reference to Figure 18) in order to the phase place of measuring crankshaft 20.This laser displacement gauge 91 that is used to measure phase place is used to measure the phase place of crankshaft 20 and moving scroll 31, constitutes Phase detection mechanism 90 in this patent application with rotating coder 53.

Described driver 82 is calculated angle of swing, angular velocity of crankshaft 20 etc. according to the output signal of rotating coder 53, and makes the command value relevant with output current value, the output frequency of frequency variator 81 according to it.Instructions such as 82 pairs of frequency variators of driver, 81 output switching instants are so that the output and instruction value of frequency variator 81 is corresponding.Frequency variator 81 is supplied with alternating current (a.c.) the compressor motor 25 of described assembly body 11 according to the instruction works from driver 82.The command value relevant with the output current of frequency variator 81, the information relevant with the angle of swing of crankshaft 20 are input to the described controller 80 from driver 82.

Control by described controller 80 and to accomplish: on one side by rotating coder 53 detect that crankshafts 20 are turning round during in regulation rotational position (phase place), on one side according to the phase place of moving scroll 31 or the movement direction of angle of swing decision fixed scroll 34, and, make the outer circumferential face of fixed scroll 34 move predetermined distance (about several microns to ten microns) from direction by impacting assembly 70, allow scroll 31 reverse 180 ° approximately afterwards again towards the inner peripheral surface that leaves moving side scroll wrap 32 in the position of regulation.If this moment, the outer circumferential face of moving side scroll wrap 32 contacted with the inner peripheral surface of quiet side scroll wrap 35, fixed scroll 34 will move under the effect of the counter-force of moving side scroll wrap 32.Having when mobile when Elmillimess 66 detects fixed scroll 34, just is the boundary point of the movable range of fixed scroll 34 with this location confirmation.On the other hand, allow scroll 31 reverse even impact fixed scroll 34 backs, fixed scroll 34 does not also move, and then thinks: two scroll wrap 31,35 contact as yet, still the boundary point of no show movable range.Therefore, till 31,35 contacts of two scroll wrap, repeat to impact fixed scroll 34 and allow scroll 31 counter-rotatings.

Forward (first direction) and reverse (second direction) at X-axis are carried out this operation, just can detect the two ends of the movable range of fixed scroll 34 on X-axis.So, allow fixed scroll 34 move to the center of the movable range of X-axis.Next, at the forward of Y-axis with after being reversed same operation, allow scroll 31 move to the center of the movable range of Y-axis.This moment, fixed scroll 34 roughly was positioned in the center, but because for the first time centering of X-axis direction is to carry out under the state that do not come out as yet at the Y-axis center, so in this embodiment, for centering more reliably, will be once more at the forward of X-axis be reversed same operation, allow fixed scroll 34 be positioned at the control at the center of movable range.

As described below to the concrete control that impacts assembly 70.One determines the movement direction of fixed scroll 34 by the signal of Phase detection mechanism 90, and controller 80 just goes control to impact assembly 70 corresponding to this direction (that is, be provided with for moving towards this movement direction).Particularly, at first, for the projection that makes the head 74 that impacts assembly 70 contacts with fixed scroll 34, controller 80 feeds to first air chamber 104 with air from first air conduit 106, simultaneously air is arranged to second air conduit 107 from second air chamber 105, and allowed main part 71 move.One allows and impacts assembly 70 and move, and controller 80 just imposes on pulsed voltage the piezoelectric element 73 that impacts assembly 70.One imposes on the piezoelectric element 73 that impacts assembly 70 with pulsed voltage, and piezoelectric element 73 just stretches according to pulse shape.At this moment, be accompanied by the elongation of piezoelectric element 73 and the inertial force of the head 74 that is pushed out acts on the fixed scroll 34, this fixed scroll 34 only moves (about several microns to ten microns) a little.Fixed scroll 34 1 moves, and head 74 just leaves fixed scroll 34.So, impact assembly 70 and move for allowing the projection of head 74 contact fixed scroll 34 once more, allowing.Once more pulsed voltage is imposed on the piezoelectric element 73 that impacts assembly 70.So fixed scroll 34 just moves a little owing to the flexible of piezoelectric element 73.Will move at leisure at the fixed scroll 34 that has been under this repetitive operation under the state that is pulled on the cover plate 36.Moving of fixed scroll 34 one finishes, and controller 80 just feeds to second air chamber 105 with air from second air conduit 107, simultaneously air is arranged to first air conduit 106 from first air chamber 104, makes to impact assembly 70 and return at the beginning position.

Action with reference to 5 pairs of these controllers 80 of figure describes.In addition, " right side " in this paragraph, " left side ", " on ", D score is all at Fig. 5.For example, under the left side that allows fixed scroll 34 towards X-axis (or right side) mobile situation, controller 80 is just controlled the assembly 70 that impacts in right side (perhaps left side).Particularly, controller 80 is regulated first air chamber 104 of cylinder portion 100 and the air quantity in second air chamber 105 on one side, allow main part 71 move, on one side pulsed voltage is supplied with the piezoelectric element 73 of this main part 71, allow impact force action towards a left side (perhaps towards the right side) on fixed scroll 34.And under the mobile situation of the downside that allows fixed scroll 34 towards Y-axis (or upside), controller 80 is just controlled the assembly 70 that impacts of upside (or downside).

The structure of-fixed scroll and moving scroll-

Fig. 8 is the plan view of resulting assembly body 11 after torso member 16, cover plate 36, compressor motor 25, lower bearing parts 23, crankshaft 20 and moving scroll 31 are assembled, Fig. 9 is the plan view of further installing under the later state of fixed scroll 34, Figure 10 is the plan view of scroll 31, and Figure 11 is the plan view of fixed scroll 34.

That moving scroll 31 has in three places of outer circumferential face of quiet side end panel 34a is one side-prominent towards outer radial periphery, in order to obtain the periphery protuberance 31b of transient equiliblium.Fixed scroll 34 has for realizing light-weighted breach 34b in three places of outer periphery portion of quiet side end panel 34a.

As shown in Figure 8, be provided with everywhere on the cover plate 36, be formed with two cover plate side positioning pin hole 36c and five bolt hole 36d at this assembly department 36b in order to the assembly department 36b of fixed scroll 34 to be installed.Squeeze among these two cover plate side positioning pin hole 36c in order to the locating stud 38a (with reference to Figure 14) that fixed scroll 34 is positioned; With the bolt 38b (with reference to Figure 15) that is connected element fixed scroll 34 is carried out using this five bolt hole 36d when fastening.

Be formed with two fixed scroll side positioning pin hole 34c on the fixed scroll 34 and on the position corresponding to cover plate side positioning pin hole 36c, on position, be formed with five bolt hole 34d corresponding to the bolt hole 36d of cover plate part 36.Fixed scroll 34 temporarily is positioned on the cover plate 36 with locating stud 38a earlier, is fixed on the cover plate 36 with bolt 38b again.This state is shown in Fig. 9.

Under this state shown in Figure 9, can move the rotation situation of scroll 31 according to the situation of movement observation that also is the periphery protuberance 31b of detection unit via the breach 34b of fixed scroll 34.Accomplished like this and can move the periphery protuberance 31b of scroll 31 for following purpose via the breach 34b observation of fixed scroll 34.Promptly, make the detecting means 92 (with reference to Figure 18) of the laser displacement gauge 91 that constitutes Phase detection mechanism 90 be positioned at the top of breach 34b, the periphery protuberance 31b of scroll 31 is set out in detection, again according to the position of this periphery protuberance 31b and the rotating position signal of rotating coder 53, detect the phase place of crankshaft 20 in the process that compressor motor 25 turning round that is the phase place of moving scroll 31.

Described each positioning pin hole 34c, 36c are formed on the outer periphery portion of cover plate part 36 and fixed scroll 34.The gap precision of positioning pin hole 34c, 36c relative positioning pin 38a is set in relative diameter for example on the numerical value of 30 μ m ± 10 μ m.Here, if set the pitch diameter of position pin-and-hole 34c, 36c be

130mm, then the positional deviation of rotation on (θ) direction can be because the difference of base circle diameter (BCD) and slightly different, but the positional deviation of sense of rotation is greatly below 1.5 μ m, thereby can access for the θ direction fully high positional accuracy.

The localization method of-fixed scroll 34-

Next, divide the fixing step that comprises the preparation process that fixed scroll 34 is positioned and comprise the positioning step that fixed scroll 34 is centered, and by carry out earlier fixing step, after carry out the order of positioning step, the localization method that utilizes 40 pairs of fixed scrolls 34 of described positioning device to position is described.

The location preparation process of fixed scroll 34 is shown in Figure 12 in Figure 16.In preparation first step shown in Figure 12, be installed to assembly body 11 before the crankshaft 20 and be placed under the state on the carrying platform (pallet) 95 moving scroll 31 at the state that is positioned at upside with cover plate 36, will be injected among the bearing 36a of cover plate 36 as the refrigerator oil 96 that lubricant oil is used.Use the scroll compressor 10 used also low refrigerator oils 96 of refrigerator oil 96 after ratio of viscosities is assembled to make these lubricant oil.For example, if the used refrigerator oil 96 in compressor assembling back is VG68, then used lubricant oil 96 is exactly low viscous VG32, VG22 etc. in the number of assembling steps.If use full-bodied oil, especially when outside air temperature was lower, oil can not supplied with bearing equably, then under the low speed rotation when positioning step, oil slick thickness will be inhomogeneous, and assembling just might be carried out under the state that misplaces that centers of crankshaft 20.With respect to this,, just can avoid producing the axle dislocation of crankshaft 20 if use low viscous oil like this.If low viscous oil is provided also in advance the bearing 23a of lower bearing parts 23, just can more effectively prevents crankshaft 20 dislocation.

In preparation shown in Figure 13 second step, Oldham's coupling 39 and moving scroll 31 are installed on the assembly body 11, lubricant oil 96 is injected into slide part.Also be to use the scroll compressor 10 used refrigerator oil 96 low refrigerator oils 96 after ratio of viscosities is assembled to make these lubricant oil 96.

In preparation third step shown in Figure 14, fixed scroll 34 is placed on cover plate 36 and the moving scroll 31, make it become quiet side scroll wrap 35 and moving side scroll wrap 32 intermeshing states, utilize locating stud 38a temporarily fixed scroll 34 to be positioned on the X-Y axle direction again.But, from the pitch diameter of above-mentioned locating stud 38a and the relation in gap, fixed scroll 34 has been decided the position with abundant high precision on the θ direction, and therefore, final positioning means is made with this locating stud 38a in the location on the θ direction.

In preparation shown in Figure 15 the 4th step, will remain unchanged among locating stud 38a insertion positioning pin hole 34c, the 36c, and fixed scroll 34 is fastened on the cover plate 36, and fixed scroll 34 is temporarily fixed with bolt 38b.

In preparation shown in Figure 16 the 5th step, the operation of taking out locating stud 38a.As mentioned above, preparing all steps just is over.Therefore, assembly body 11 is moved on the erection unit that centers (positioning device 40) as shown in figure 17.In addition, in Figure 17, show the erection unit 40 that centers briefly.

Next, each step (second positioning step) that centers is described.

What Figure 18 showed is the state of assembly body 11 having been moved on the erection unit 40 that centers.If be the first step that centers with this state, then in this first step that centers, assembly body 11 is arranged in upside with cover plate part 36 state is placed on (Fig. 3 and Fig. 7 have omitted carrying platform 95) on the base plate 46 with carrying platform 95, after this first step that centers finishes, around assembly body 11, pushing and pressing mechanism 56, fastening device 63, impact the nut 97 that do not show among assembly 70, rotating coder 53 and joiner 55, position detecting mechanism 65, Phase detection mechanism 90, Fig. 3, power supply connector 42 etc. and be in holding state.The later block diagram of Figure 18 is the figure of the working condition in each step of expression, with fastening device 63, impact on the relevant detail section concrete structure such as assembly 70 with Fig. 3, shown in Figure 7 some difference arranged, but on the function with Fig. 3, shown in Figure 7 do not have a difference, therefore followingly working condition is described with vivid figure.

Under the state that assembly body 11 is placed on the base plate 46, as Fig. 3, shown in Figure 7, the underpart of torso member 16 (perhaps carrying platform 95) embeds the inboard of guide element 50, and the lower end surface of crankshaft 20 is positioned at the top of through hole 52, and oil picker 20a is outstanding towards the below from through hole 52.

In second step that centers shown in Figure 19, the clamping head 64 of fastening device 63 is shifted onto on the outer circumferential face of torso member 16 of assembly body 11, from every side assembly body 11 being fixed, the connector 42 of will powering is connected on the power supply terminal 19.Rotating shaft 53a with rotating coder 53 is connected on the oil picker 20a of crankshaft 20 with joiner 55, and allows the cylinder portion 57 of pushing and pressing mechanism 56 work, and fixed scroll 34 is shifted onto on the cover plate 36 of assembly body 11.

In the third step that centers shown in Figure 20, carry out nutting device 97 and descend, and the operation that bolt 38b is unclamped.Because under the constant state of fastening bolt 38b, can't utilize afterwards to impact assembly 70 and allow fixed scroll 34 move, that is can't utilize the position that impacts 70 pairs of fixed scrolls 34 of assembly to regulate.

Unclamp operation one end of bolt 38b, just carry out the 4th step that centers shown in Figure 21.In the 4th step, nutting device 97 rises, and simultaneously, the laser displacement gauge 91 of Phase detection mechanism 90 advances.At this moment, the detecting means 92 of laser displacement gauge 91 is positioned at the top of the breach 34b (with reference to figure 9) of fixed scroll 34.

The step thus much that comprises each preparation process is equivalent to the fixing step put down in writing in claims of the present invention; Step afterwards is equivalent to the positioning step put down in writing in claims of the present invention.

In the 5th step that centers shown in Figure 22, utilize driver shown in Figure 7 82 to switch on to compressor motor 25 from frequency variator 81, allow crankshaft 20 change four and turn left and rotate under the certain rotating speed of right low speed, utilize laser displacement gauge 91 to detect the periphery protuberance 31b of moving scroll 31 via the breach 34b of fixed scroll 34 in a for example second.Afterwards, driver 82 detects the phase place of crankshaft 20 that is the phase place of moving scroll 31 according to the position of this periphery protuberance 31b, the rotating position signal of rotating coder 53.

The Phase detection one of moving scroll 31 finishes, and just carries out the 6th step that centers shown in Figure 23.In the 6th step, allow the laser displacement gauge 91 of Phase detection mechanism 90 retreat, allow impact assembly 70 and advance.Allow be arranged on the X-axis with Y-axis on be that the Elmillimess 66 of position detecting mechanism 65 all advances, make it become the state of the position that can detect fixed scroll 34.

Next, in the 7th step that centers shown in Figure 24, driving by compressor motor 25 under the state of

crankshaft

20 and 31 rotations of moving scroll, fixed scroll 34 is being moved with the location by impacting assembly 70.At this moment, carry out first operation, second operation and the 3rd operation that centers that centers that centers in regular turn.First operation that centers is: earlier X-axis direction is detected the two ends of the movable range of fixed scroll 34, again fixed scroll 34 is positioned at its central position; Second operation that centers is: detect the two ends of the movable range of fixed scroll 34 at Y direction, again fixed scroll 34 is positioned at its central position; The 3rd operation that centers is: once more X-axis direction is detected the two ends of the movable range of fixed scroll 34, again fixed scroll 34 is positioned at its central position.

Because under each operation that centers, detect the phase place or the angle of swing of fixed scroll 34, so at first allow this fixed scroll 34 move according to this phase place, so that the outer circumferential face of quiet side scroll wrap 35 moves towards the direction of leaving the inner peripheral surface that moves side scroll wrap 32 towards X-axis reverse (or forward) to the position (position that the gap is narrow or position contacting) of regulation.That does like this reasons are as follows.If as shown in figure 25, be arranged in assembly 70 work that impact that make the figure right side under the state of forward one end (right side one end of figure) of X-axis in moving scroll 31, although then pushing and pressing mechanism 56 can rotate by restriction fixed scroll 34, also there is impact force to surpass frictional force, the possibility of fixed scroll 34 rotations.Will cause Location accuracy inaccurate like this.

Therefore, under this mode of execution, as shown in figure 26, be arranged in assembly 70 work that impact on figure right side of allowing under the state of a reverse end (left side one end of figure) of X-axis in moving scroll 31.Afterwards, judge when allowing scroll 31 counter-rotatings whether displacement of fixed scroll 34, if detecting to go out fixed scroll 34 has displacement, just illustrate that two

scroll wrap

32,35 contact as yet, so will repeatedly impact fixed scroll 34 and repeatedly allow scroll 31 reverse.On the other hand, have mobilely if detect fixed scroll 34, just make two

scroll wrap

32,35 and contacted, fixed scroll 34 has been pushed the judgement of returning, is an end of movable range with this position judgment.Forward (or oppositely) at X-axis carries out same operation, detects the other end of the movable range of two scroll wrap 32,35.Detect the contact position of two

scroll wrap

32,35 at X-axis, Y-axis in oppositely and forward two places (many places) like this, fixed scroll 34 is positioned in this in the heart.

In addition, from first to the 3rd center below the particular content of operation.

At first, center in the operation first, repeat the counter-rotating of fixed scroll 34 towards the reverse mobile and moving scroll 31 of X-axis, be decided to be first contact position of X-axis direction with detecting quiet side scroll wrap 35 and moving side scroll wrap 32 position contacting, next, repeat fixed scroll 34 towards the moving and the counter-rotating of moving scroll 31 of the forward of X-axis, be decided to be second contact position of X-axis direction detecting quiet side scroll wrap 35 and moving side scroll wrap 32 position contacting.At last, the middle position with first contact position and second contact position is decided to be the central position of fixed scroll 34 on X-axis direction.

Center in the operation second, repeat the counter-rotating of fixed scroll 34 towards the reverse mobile and moving scroll 31 of Y-axis, be decided to be first contact position of Y direction with detecting quiet side scroll wrap 35 and moving side scroll wrap 32 position contacting, next, repeat fixed scroll 34 towards the moving and the counter-rotating of moving scroll 31 of the forward of Y-axis, be decided to be second contact position of Y direction detecting quiet side scroll wrap 35 and moving side scroll wrap 32 position contacting.At last, the middle position with first contact position and second contact position is decided to be the central position of fixed scroll 34 on Y direction.

Center in the operation the 3rd, further repeat the counter-rotating of fixed scroll 34 towards the reverse mobile and moving scroll 31 of X-axis, be decided to be first contact position of X-axis direction with detecting quiet side scroll wrap 35 and moving side scroll wrap 32 position contacting, next, repeat fixed scroll 34 towards the moving and the counter-rotating of moving scroll 31 of the forward of X-axis, be decided to be second contact position of X-axis direction detecting quiet side scroll wrap 35 and moving side scroll wrap 32 position contacting.At last, the middle position with first contact position and second contact position is decided to be the central position of fixed scroll 34 on X-axis direction.

As mentioned above, the 7th step that centers is a such step, promptly X-axis direction and Y direction is detected respectively after the two ends of movable range of fixed scroll 34, this fixed scroll 34 is positioned at the central authorities of this movable range.Center after the operation through first to the 3rd, just obtained the center of fixed scroll 34, fixed scroll 34 just has been positioned.

In this centers the 7th step, when when impacting assembly 70 fixed scroll 34 moved, the guiding element 41 that the movement direction of fixed scroll 34 is urged mechanism 56 is limited on X-axis direction and the Y direction, and impacts towards the direction of leaving mutually in position (position that the gap is narrow or the position contacting)

scroll wrap

32,35 of regulation.Therefore, fixed scroll 34 does not rotate, and parallel moving.

Finish the location one of fixed scroll 34, next just carries out the 8th step that centers shown in Figure 27.In this centers the 8th step, at first, stop compressor motor 25 power supplies, crankshaft 20 just stops the rotation with moving scroll 31.Then, impact assembly 70 and retreat with Elmillimess 66, nutting device 97 descends, and bolt 38b is tightened, and fixed scroll 34 just is fastened on the cover plate 36.At this moment, fixed scroll 34 is properly oriented.

Afterwards, shift to the 9th step that centers shown in Figure 28.In this centered the 9th step, nutting device 97 rose, and the bar 57a of cylinder 57 retreats simultaneously, the pinning parts 58 and will therefore rise of pushing and pressing mechanism 56.And rotating coder 53 descends with joiner 55 one, and breaks away from the oil picker 20a of crankshaft 20, and fastening device 63 begins to retreat, and power supply connector 42 also begins to retreat simultaneously, and the two breaks away from power supply terminal 19.

Finished above-mentioned steps, the step that fixed scroll 34 is positioned just is all over.Afterwards, as shown in figure 29, carry out assembly body 11 from being that the workpiece that the positioning device 40 of erection unit carrys down that centers is taken out of step.

The effect of-mode of execution-

According to this mode of execution, according to angle of swing by Phase detection mechanism 90 detected fixed scrolls 34, allow 75 work of described mobile mechanism and when making two

scroll wrap

32,35 have contacted, and, by carrying out this position probing in a plurality of places, the central position of decision fixed scroll 34 is to position.Because when fixed scroll 34 moves, fixed scroll 34 is to move away from the other side's directions mutually towards two

scroll wrap

Under the state that described fixed scroll 34 is pressed on the described cover plate part 36, from impacting assembly 70 impact force is imposed on this fixed scroll 34, can make described fixed scroll 34 move a slight distance thus.Therefore to the Location accuracy height of fixed scroll 34.

Allow scroll 31 rotate on one side, detect the angle of swing of this moving scroll 31 on one side by Phase detection mechanism 90, rotational position in moving scroll 31, promptly, in two

scroll wrap

32,35 with respect to the movement direction of fixed scroll 34 mutually away from the other side's direction, allow fixed scroll 34 move, detect the operation of the position of fixed scroll 34 in the zone opposite in a plurality of places, just can finish location fixed scroll 34 with it.That is to say, can allow fixed scroll 34 move in the zone that may impact (moving), can detect the position of fixed scroll 34 in zone in addition, contact, therefore in a rotary course, can do two work thereby can judge two scroll wrap 32,35.Besides, even repeatedly carry out the startup of compressor motor 25 and stop, also can positioning fixed scroll 34.But, in this case, locate and needed cumulative time can and stop the needed acceleration and deceleration time and increase owing to the startup of compressor motor 25.In this embodiment, needed cumulative time of location can be shortened.The result is that the producibility of scroll compressor 10 improves.

Make and allow that by above-mentioned guiding element 41 X-axis direction that fixed scroll 34 moves is consistent with the direction of the impact force that is imposed on fixed scroll 34 by described mobile mechanism 75 with Y direction, just can make fixed scroll 34 towards

scroll wrap

Center for fixed scroll 34 to X-axis direction earlier, carry out at Y direction, and then X-axis direction is carried out, fixed scroll (34) just is positioned thus.Under being the state that do not come out as yet at the center on the Y direction, centering on the X-axis direction carry out for the first time, so may exist incorrect the time.Like this X-axis direction is carried out after twice, just can correctly locate fixed scroll 34.

Particularly, be X-axis direction and Y direction are detected the two ends of movable range of fixed scroll 34 respectively by position detecting mechanism 65 after, again fixed scroll 34 is positioned at the central authorities of this movable range.Therefore, can correctly determine X-axis center and Y-axis center, fixed scroll 34 is located.Besides, when fixed scroll 34 is centered, earlier X-axis direction is carried out, again Y direction is carried out, and then X-axis direction is carried out.At this moment, X-axis direction and Y direction are detected respectively after the two ends of movable range of fixed scroll 34, again the center of fixed scroll 34 is set in the central authorities of this movable range.Just because of this, so can be correctly to fixed scroll 34 location.

Because use the low oil of refrigerator oil of the scroll compressor 10 after the ratio of viscosities assembling to make the lubricant oil of the movable part in the assembly body 11, so also can avoid the axle center dislocation of crankshaft when assembling.

(other mode of execution)

Also can adopt following structure in above-mentioned each mode of execution.

For example, in the above-described embodiment, for allowing head 74 advance and retreat that impact assembly 70 use cylinder portion 100.But also can use fastening device, cam mechanism etc. to replace this cylinder portion 100; It is not the structure that necessarily has been to use piezoelectric element 73 that the parts that allow fixed scroll 34 move promptly impact assembly 70, can also adopt other structure, has for example used the mobile mechanism 75 of ball wire rod-type delivering mechanism etc.Generally speaking, suitable change can be done to its structure so long as can the mechanism that fixed scroll 34 carries out adjusting the position be got final product by mobile mechanism 75.

In the above-described embodiment, be to allow scroll 31 rotations, and meanwhile fixed scroll 34 is positioned, but also can be like this, allow scroll 31 stop in the position of regulation, impact fixed scroll 34, allow scroll 31 reverse, carry out the location on X-axis direction and the Y direction like this.

In said embodiment, be after being installed to fixed scroll 34 on the assembly body 11, the phase place of utilizing laser displacement gauge 91 to detect to set out scroll 31 via the breach 34b of fixed scroll 34, but also can be assembled into before the assembly body 11 will moving scroll 31, fixed scroll 34, detect the eccentric part 22 of crankshafts 20 in advance with laser displacement gauge equiphase feeler mechanism 90.

In addition, above-mentioned each embodiment is preferred in essence example, does not limit the present invention, application of the present invention or purposes scope etc.

-industrial applicibility-

In sum, the present invention is as when the assembling convolute-hydrodynamic mechanics fixed scroll being carried out The localization method of location of great use.

Claims

1, a kind of positioning device of fixed scroll, be used for assembling process in convolute-hydrodynamic mechanics (10), the position relation of the moving side scroll wrap (32) that quiet side scroll wrap (35) that is had according to fixed scroll (34) and moving scroll (31) are had positions fixed scroll (34), the positioning device of this fixed scroll comprises: component for fixing (63), Phase detection mechanism (90), position detecting mechanism (65), mobile mechanism (75) and control unit (80), this component for fixing (63), to moving scroll (31), the cover plate part (36) of crankshaft (20) that engages with this moving scroll (31) and the bearing that constitutes this crankshaft (20) assembles and the assembly body (11) that becomes one is fixed, the phase place or the angle of swing of described moving scroll (31) detects in this Phase detection mechanism (90), this position detecting mechanism (65), detect the position of described fixed scroll (34), this mobile mechanism (75), the fixed scroll (34) of conveying described moving scroll (31) engagement moves, this control unit (80), according to the described quiet side scroll wrap (35) and the contact condition of moving side scroll wrap (32) described mobile mechanism (75) is controlled, it is characterized in that:

Described control unit (80) comprises controller (80), the movement direction that this controller (80) determines fixed scroll (34) according to phase place or angle of swing by the detected moving scroll of described Phase detection mechanism (90) (31), if and relevant when making fixed scroll (34) mobile by described mobile mechanism (75) outer circumferential face of quiet side scroll wrap (35) leave the part of the inner peripheral surface of moving side scroll wrap (32), when the moving scroll (31) of the mobile relief of fixed scroll (34) is reversed, the outer circumferential face of moving side scroll wrap (32) contacts with the inner peripheral surface of quiet side scroll wrap (35), fixed scroll (34) is pushed gets back to moving side scroll wrap (32), just by position detecting mechanism (65) with this position as scroll wrap (32,35) mutual contact position detects, and carry out this position probing in a plurality of places, the central position that determines fixed scroll (34) thus positions.

2, the positioning device of fixed scroll according to claim 1 is characterized in that:

Described mobile mechanism (75) comprises and impacts assembly (70) that this impacts assembly (70) and under the state that described fixed scroll (34) is pressed on the described cover plate part (36) impact force is imposed on this fixed scroll (34), and described fixed scroll (34) is moved.

3, the positioning device of fixed scroll according to claim 1 is characterized in that:

The described mobile mechanism (75) that constitutes when moving scroll (31) is rotated action, allows fixed scroll (34) move.

4, the positioning device of fixed scroll according to claim 1 is characterized in that:

Comprise guiding element (41), this guiding element (41) does not change the posture of fixed scroll (34), and permission fixed scroll (34) is parallel to mutually orthogonal X-axis direction and Y direction moves;

Quiet vortex (34) move since described guiding element (41) to have obtained the X-axis direction and the Y direction that allow consistent with the direction of the locomotivity that is imposed on fixed scroll (34) by described mobile mechanism (75).

5, the positioning device of fixed scroll according to claim 4 is characterized in that:

The described mobile mechanism (75) that constitutes allows fixed scroll (34) move to position according to the order of X-axis direction, Y direction, X-axis direction.

6, the positioning device of fixed scroll according to claim 4 is characterized in that:

The described mobile mechanism (75) that constitutes after the two ends of the movable range that X-axis direction and Y direction is detected fixed scroll (34) respectively by position detecting mechanism (65), is positioned at this fixed scroll (34) central authorities of this movable range again.

7, the positioning device of fixed scroll according to claim 1 is characterized in that:

The lubricant oil of the movable part in the described assembly body (11), the refrigerating machine oil viscosity of the scroll compressor (10) after the ratio of viscosities assembling is low.

8, a kind of localization method of fixed scroll, be used for assembling process in convolute-hydrodynamic mechanics (10), scroll wrap (35) that is had according to fixed scroll (34) and the position of the described scroll wrap that has of moving scroll (31) (32) relation position fixed scroll (34), the localization method of this fixed scroll comprises: fixing step and positioning step, in this fixing step, to move scroll (31), the cover plate part (36) of crankshaft (20) that engages with this moving scroll (31) and the bearing that constitutes this crankshaft (20) fits together, the fixed-site that will make described fixed scroll (34) become the assembly body (11) of one with described moving scroll (31) engagement is got off, in this positioning step, after described fixing step, according to the described quiet side scroll wrap (35) and the contact condition of moving side scroll wrap (32) position of described fixed scroll (34) is regulated, be it is characterized in that:

In described positioning step, according to the phase place of moving scroll (31) or the movement direction of angle of swing decision fixed scroll (34), if and relevant when making fixed scroll (34) mobile by described mobile mechanism 75 outer circumferential face of quiet side scroll wrap (35) leave the part of the inner peripheral surface of moving side scroll wrap (32), when the moving scroll (31) of the mobile relief of fixed scroll (34) is reversed, the outer circumferential face of moving side scroll wrap (32) contacts with the inner peripheral surface of quiet side scroll wrap (35), fixed scroll (34) is pushed gets back to moving side scroll wrap (32), just with this position as scroll wrap (32,35) contact position between detects, and carry out this position probing in a plurality of places, the central position that determines fixed scroll (34) thus positions.

9, the localization method of fixed scroll according to claim 8 is characterized in that:

Described positioning step is a posture that does not change fixed scroll (34), allows fixed scroll (34) be parallel to that mutually orthogonal X-axis direction and Y direction move and with this fixed scroll (34) localization step.

10, the localization method of fixed scroll according to claim 9 is characterized in that:

Described positioning step is that an order according to X-axis direction, Y direction, X-axis direction allows fixed scroll (34) move step to position.

11, the localization method of fixed scroll according to claim 9 is characterized in that:

Described positioning step be one after the two ends of the movable range that X-axis direction and Y direction is detected described fixed scroll (34) respectively, again this fixed scroll (34) is positioned at the step of the central authorities of this movable range.

12, the localization method of fixed scroll according to claim 11 is characterized in that:

Described positioning step is one and carries out first operation, second the center step of operation of operation and the 3rd that centers that centers in order,

Center in the operation first, repeat the counter-rotating of fixed scroll (34) along the mobile and moving scroll (31) of the first direction of X-axis, to detect quiet side scroll wrap (35) and moving side scroll wrap (32) position contacting be decided to be first contact position of X-axis direction, repeat moving and the counter-rotating of moving scroll (31) of the second direction of fixed scroll (34) on the X-axis afterwards again, to detect quiet side scroll wrap (35) and moving side scroll wrap (32) position contacting be decided to be second contact position of X-axis direction, at last fixed scroll (34) is positioned on the central position of first contact position and second contact position;

Center in the operation second, repeat moving and the counter-rotating of moving scroll (31) of the first direction of fixed scroll (34) on the Y-axis, to detect quiet side scroll wrap (35) and moving side scroll wrap (32) position contacting be decided to be first contact position of Y direction, repeat moving and the counter-rotating of moving scroll (31) of the second direction of fixed scroll (34) on the Y-axis afterwards again, to detect quiet side scroll wrap (35) and moving side scroll wrap (32) position contacting be decided to be second contact position of Y direction, at last fixed scroll (34) is positioned on the central position of first contact position and second contact position;

Center in the operation the 3rd, repeat moving and the counter-rotating of moving scroll (31) of the first direction of fixed scroll (34) on the X-axis, to detect quiet side scroll wrap (35) and moving side scroll wrap (32) position contacting be decided to be first contact position of X-axis direction, repeat moving and the counter-rotating of moving scroll (31) of the second direction of fixed scroll (34) on the X-axis afterwards again, to detect quiet side scroll wrap (35) and moving side scroll wrap (32) position contacting be decided to be second contact position of X-axis direction, at last fixed scroll (34) is positioned on the central position of first contact position and second contact position.

13, the localization method of fixed scroll according to claim 8 is characterized in that

Described positioning step is the step that a limit allows scroll (31) rotation limit that fixed scroll (34) is positioned.