CN101063446A - Enclosed compression device, device and method for manufacturing same - Google Patents

Enclosed compression device, device and method for manufacturing same Download PDF

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Publication number
CN101063446A
CN101063446A CN 200610136091 CN200610136091A CN101063446A CN 101063446 A CN101063446 A CN 101063446A CN 200610136091 CN200610136091 CN 200610136091 CN 200610136091 A CN200610136091 A CN 200610136091A CN 101063446 A CN101063446 A CN 101063446A
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CN
China
Prior art keywords
air gap
compression device
cylinder shell
enclosed compression
rotary driving
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CN 200610136091
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CN100520073C (en
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岩崎俊明
国分忍
白畑智博
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

The invention provides a sealed compression device, the producing apparatus and the method thereof. The cylinder casing of the sealing container has a deformation applying area formed from the outer circumference which applies the permanent deformation to the cylinder casing and improves the gas length uniformity of the gas gap around the drive rotation axis. Thus, the invention comprises all of the residual stress in the cylinder casing of the sealed container and compensates gas gap change between the electromotor rotor and electromotor stator brought by deviation and improves its uniformity.

Description

Enclosed compression device and manufacturing installation thereof and its manufacture method
Technical field
The present invention relates to a kind of enclosed compression device and manufacturing installation and its manufacture method of in seal container, having assembled compressor, motor, having reached the rotary driving axle that connects compressor and motor.
Background technique
In this enclosed compression device, seal container is made of the two end part of end housing seal cylinder shell.Compressor has cylinder that forms pressing chamber and the compression rotor that rotates in pressing chamber, cylinder for example is fixed in the interior week of cylinder shell by arc spot welding at multiple spot.Motor has stator and stator is fixed to week and the cylinder devices spaced apart of compressor in cylinder shell across air gap motor rotor in opposite directions week in this stator.Be provided with compression rotor at the rotary driving axle.This rotary driving axle is rotatably mounted by the cylinder of compressor, extends to the interior week of motor rotor, is engaged in motor rotor.
In such enclosed compression device, on the cylinder shell of seal container, the heat that produces during because of the cylinder of arc spot welding compressor produces permanent deformation near arc spot welding point.Heat initial conditions when residual stress that the amount of deformation of permanent deformation that results from each arc spot welding point produces when materials processing is become cylindric during with the materials processing of cylinder shell and arc spot welding etc. changes, and the relative position relation that the cylinder shell after the cylinder welding and the relative position relation of cylinder are set before its welding departs from.Above-mentioned residual stress from the made of cylinder shell the time to be configured as rolling, heat treatment cylindraceous, welding, and a plurality of manufacturing procedures such as punching press accumulate, for each cylinder shell, deviation is big, is difficult to correctly control the residual stress of this cylinder shell.In addition, because the unstability of arc phenomenon, the heat initial conditions when cylinder is carried out arc spot welding also is difficult to correctly control its heat, weld interval.
Therefore, cylinder is being welded to the cylinder shell front and back, the stator of motor and the relative position relation of motor rotor produce skew, there is deviation aspect its side-play amount and the offset direction, so the gap length of the air gap that forms between the stator of motor and motor rotor is inhomogeneous around running shaft.
Prior art at patent documentation 1 is a kind of like this technology that discloses in the TOHKEMY 2000-291577 communique, this technology is improved the uniformity of the axial air gap of rotary driving with the cylinder arc spot welding of the compressor minimal point to the permanent deformation that results from cylinder shell.In addition, prior art at patent documentation 2 is to disclose such technology in the Japanese kokai publication hei 6-284655 communique, in this technology, the enclosed compression device made from the initial stage is an object, variable quantity according to the axial air gap of direction detection rotary driving of the intensity of the vibration that produces when the motor starting and vibration, in the big occasion of the deviation of air gap, for the enclosed compression device that next will make, the weld interval of the predetermined welding position when regulating cylinder with compressor and being welded in the welding of cylinder shell.
The paragraph 0019～0022 of [patent documentation 1] TOHKEMY 2000-291577 communique
The paragraph 0004～0005 of [patent documentation 2] Japanese kokai publication hei 6-284655 communique
Yet, in the technology that is disclosed in patent documentation 1, when there is deviation in the heat initial conditions when the arc spot welding of the residual stress of cylinder shell and cylinder, corresponding to these deviations, the minimal point position change of the permanent deformation of cylinder shell, so, the gap length of generation air gap uneven problem around the rotary driving axle.In addition, in the technology that is disclosed in patent documentation 2, enclosed compression device about the initial stage manufacturing, can not adjust air gap, in addition, in the enclosed compression device of next making, the deviation of the heat input quantity with the cylinder arc spot welding of compressor during to cylinder shell makes that the gap length of the axial air gap of rotary driving is inhomogeneous.
Summary of the invention
The gap length that the present invention proposes a kind ofly to improve such problem, make the axial air gap of rotary driving more homogenization improvement enclosed compression device, in addition, manufacturing installation and its manufacture method of this enclosed compression device proposed.
Enclosed compression device of the present invention has seal container, motor, compressor, reaches the rotary driving axle; This seal container has cylinder shell; This motor have the stator that is fixed in week in the above-mentioned cylinder shell and in air gap and this stator phase to motor rotor; This compressor has and is fixed in the above-mentioned cylinder shell week and forms the cylinder of pressing chamber and the compression rotor that rotates in above-mentioned pressing chamber; This rotary driving axle is delivered to above-mentioned compression rotor with the rotating force of above-mentioned motor rotor; It is characterized in that: above-mentioned cylinder shell has the distortion that forms from its periphery and applies the zone, and this distortion applies the zone above-mentioned cylinder shell is applied permanent deformation, improves the gap length uniformity of the axial above-mentioned air gap of above-mentioned rotary driving.
In addition, it is characterized in that of the manufacturing installation of enclosed compression device of the present invention: have relative enclosed compression device and carry out the air gap correcting device that air gap is proofreaied and correct; This enclosed compression device under assembled state at least at the stator of interior all fixed motors of the cylinder shell of seal container and the cylinder of compressor, the motor rotor of above-mentioned motor across the interior phase of air gap and said stator to, above-mentioned motor rotor is connected in the compression rotor of above-mentioned compressor by the rotary driving axle; Above-mentioned air gap correcting device has processing head and s operation control mechanism; This processing head is in the above-mentioned cylinder shell of the enclosed compression device of above-mentioned assembled state relatively and proofreaies and correct processing from its periphery, and the inhomogeneity distortion of gap length that is formed for improving the axial above-mentioned air gap of above-mentioned rotary driving applies the zone; The position and the processing conditions of the above-mentioned correction processing of this s operation control mechanism computing are controlled above-mentioned processing head.
In addition, the manufacture method of enclosed compression device of the present invention comprises assembling procedure and air gap correcting process; It is characterized in that: above-mentioned assembling procedure is at the stator of interior all fixed motors of the cylinder shell that constitutes seal container and the cylinder of compressor, the motor rotor of above-mentioned motor across the interior phase of air gap and said stator to, above-mentioned motor rotor carries out the assembling of above-mentioned enclosed compression device by the compression rotor ground that the rotary driving axle is connected in above-mentioned compressor, in addition, above-mentioned air gap correcting process above-mentioned cylinder shell of above-mentioned relatively enclosed compression device behind above-mentioned assembling procedure is proofreaied and correct processing from its periphery, and the inhomogeneity distortion of gap length that is formed for improving the axial above-mentioned air gap of above-mentioned rotary driving applies the zone.
In enclosed compression device of the present invention, it is characterized in that, cylinder shell has the distortion that forms from its periphery and applies the zone, and this distortion applies the zone permanent deformation is applied to above-mentioned cylinder shell, improves the gap length uniformity of the axial above-mentioned air gap of above-mentioned rotary driving; Above-mentioned distortion applies the zone and can form from the periphery of cylinder shell under the assembled state of enclosed compression device; Therefore, comprise cylinder shell all residual stresss, be accompanied by cylinder fixing heat initial conditions interior, compensate the variation of the air gap that these deviations bring, can improve the uniformity of this gap length.
In addition, in the manufacturing installation of enclosed compression device of the present invention, the air gap correcting device has processing head and s operation control mechanism; This processing head is in the above-mentioned cylinder shell of the enclosed compression device of assembled state relatively and proofreaies and correct processing from its periphery, and the inhomogeneity distortion of gap length that is formed for improving the axial air gap of rotary driving applies the zone; The position and the processing conditions of the above-mentioned correction processing of this s operation control mechanism computing are controlled above-mentioned processing head; So, comprise the cylinder shell that is in assembled state all residual stresss, be accompanied by cylinder fixing heat initial conditions interior, compensate the variation of the air gap that these deviations bring, can improve the uniformity of this gap length.
In addition, in the manufacture method of enclosed compression device of the present invention, assembling procedure is at the stator of interior all fixed motors of the cylinder shell that constitutes seal container and the cylinder of compressor, the motor rotor of above-mentioned motor across the interior phase of air gap and said stator to, above-mentioned motor rotor carries out the assembling of above-mentioned enclosed compression device by the compression rotor ground that the rotary driving axle is connected in above-mentioned compressor, in addition, above-mentioned air gap correcting process above-mentioned cylinder shell of above-mentioned relatively enclosed compression device behind above-mentioned assembling procedure is proofreaied and correct processing from its periphery, and the inhomogeneity distortion of gap length that is formed for improving the axial above-mentioned air gap of above-mentioned rotary driving applies the zone; Therefore, comprise the cylinder shell behind the assembling procedure all residual stresss, be accompanied by cylinder fixing heat initial conditions interior, compensate the variation of the air gap that these deviations bring, can improve the uniformity of this gap length.
Description of drawings
Fig. 1 is the perspective view that the mode of execution 1 of enclosed compression device of the present invention is shown.
Fig. 2 is the longitudinal section of mode of execution 1.
Fig. 3 applies the explanatory drawing of the permanent deformation of zone generation for the distortion of mode of execution 1.
Fig. 4 is the longitudinal section of mode of execution 2 that the manufacturing installation of enclosed compression device of the present invention is shown.
Fig. 5 is the block diagram that the control system of mode of execution 2 is shown.
Fig. 6 is the performance plot that the air gap adjustment amount characteristic that is stored in s operation control mechanism of mode of execution 2 is shown.
Fig. 7 is the flow chart of mode of execution 3 that the manufacture method of enclosed compression device of the present invention is shown.
Fig. 8 illustrates the enclosed compression device before the air gap correcting process of mode of execution 3 and the sectional view of the enclosed compression device behind the air gap correcting process.
Fig. 9 is the sectional view that the mode of execution 4 of enclosed compression device of the present invention is shown.
Embodiment
Below, with reference to description of drawings plurality of embodiments of the present invention.
Mode of execution 1
Fig. 1 is the perspective view that the mode of execution 1 of enclosed compression device of the present invention is shown, and Fig. 2 is its longitudinal section.
The enclosed compression device 100 of mode of execution 1 has seal container 10, motor 20, compressor 30, rotary driving axle 40, reaches liquid-storage container 50.This enclosed compression device 100 for example is applied to air conditioner, refrigerator etc.
Seal container 10 has cylinder shell 11 and end housing 12,13.These housings 11,12,13 for example are made of thin steel plate.For example by being cylindricly to constitute steel formability, its central axis becomes the configuration of vertical direction ground to cylinder shell 11.This cylinder shell 12 is also referred to as middle casing, is disposed at 12,13 of end housings.The upper opening portion ground of end housing 11 O-ring tubular housings 11 is fixed in cylinder shell 11.This end housing 12 is also referred to as upper shell, the discharge tube 14 of heart portion configuration therein.This discharge tube 14 is discharged by being compressed for example refrigeration agent of gas after compressor 30 compressions.The lower openings portion ground of end housing 13 O-ring tubular housings 11 is fixed in cylinder shell 11.This end housing 13 is also referred to as lower shell body, at these end housing 13 fixed foot portion housings 15.This foot's housing 15 is used for fixing enclosed compression device 100.Seal container 10 forms confined space 16 in inside.
Motor 20 is a monocyclic-start induction motor for example, is disposed at confined space 16, has stator 21 and motor rotor 25.Stator 21 has stator core 22 and stator coil 23.Stator core 22 for example constitutes cylindric by stacked silicon steel plate, for example by being pressed into or hot charging is fixed to the inner peripheral surface of the cylinder shell 11 of seal container 10.Stator coil 23 is wound in stator core 22.This stator coil 23 for example is connected to commercial ac power source, in the interior week generation rotating magnetic field of stator core 22.Motor rotor 25 for example constitutes cylindric by stacked silicon steel plate, be disposed at the interior week of stator 21, and the outer circumferential face of the inner peripheral surface of stator 21 and motor rotor 25 across the air gap 27 of ring-type in opposite directions.Motor rotor 25 is accepted rotating magnetic field across air gap 27 from stator 21, by this rotating magnetic field rotation.
Compressor 30 is disposed at confined space 16 with motor 20, has cylinder 31, compression rotor 35, first and second bearings 37,38.Cylinder 31 is for example by constituting cast iron or agglomerated material processing.This cylinder 31 has the external diameter ground slightly littler than cylinder shell 11 internal diameters to be made, and for example is fixed in the inner peripheral surface of cylinder shell 11 by a plurality of arc spot welding points 32.A plurality of arc spot welding points 32 form by carrying out arc spot welding from the outside of cylinder shell 11.Central part at cylinder 31 forms pressing chamber 33.This pressing chamber 33 for example forms by the central part of cutting cylinder 31.
Compression rotor 35 is disposed at pressing chamber 33.This compression rotor 35 passes through rotation in pressing chamber 33, thereby the gas that is compressed from liquid-storage container 50 is compressed.The gas that is compressed that has been subjected to compression at pressing chamber 33 is discharged to confined space 16, discharges from discharge tube 14 by air gap 27.
First, second bearing 37,38 for example is made of bearing metal.Respectively 33 ground, seal compression chamber with clutch shaft bearing 37 be fixed in cylinder 31 above, with second bearing 38 be fixed in cylinder 31 below.These first, second bearings 37,38 are fixed in cylinder 31, seal compression chamber 33 in the mode from the central part of clamping cylinder 31 up and down.
Rotary driving axle 40 is the common axis of rotation to motor 20 and compressor 30, extends the ground configuration at confined space 16 along vertical direction.This rotary driving axle 40 connects the cylinder 31 of compressor, connects pressing chamber 33, extends to the interior week of motor rotor 35.At these rotary driving axle 40 integrally formed compression rotors 35.Rotary driving axle 40 is rotatably mounted by first, second bearing 37,38 in the part that connects cylinder 31.Support the underpart of 38 pairs of rotary driving axles 40 of second bearing, but clutch shaft bearing 37 is more supporting rotary driving axle 40 by the position of central part than second bearing 37.For this reason, clutch shaft bearing 37 constitutes the main bearing of rotary driving axle 40, and second bearing 38 constitutes auxiliary bearing.
Rotary driving axle 40 has the first portion 41 of the cylinder 31 that connects compressor 30 below clutch shaft bearing 37, in addition, have above clutch shaft bearing 38 towards the second portion 42 of the interior Zhou Yanshen of motor rotor 25.First portion 41 does not dispose bearing by 38 supportings of second bearing at second portion 42, becomes free part, at this second portion 42 motor rotor 25 is installed.Rotary driving axle 40 is rotated driving by motor rotor 25.
Liquid-storage container 50 is disposed at the outside of seal container 10, is installed on seal container 10.The connecting tube 52 of the underpart of this liquid-storage container 50 joins suction pipe 55 that is communicated with the suction port 33a of pressing chamber 33 and the connecting tube 54 that is fixed in cylinder shell 11 to by soldering part 53.Connecting tube 54 is fixed in the outside of cylinder shell 11.Suction pipe 55 connects cylinder shell 11 and connecting tube 54 from the suction port 33a of pressing chamber 33, is projected into the outside at seal container 10.The connecting tube 52 of liquid-storage container 50 is embedded into the inside of suction pipe 55, is soldered to suction pipe 55 and connecting tube 54 by soldering part 53.
The cylinder shell 11 of seal container 10 has the 11A of first portion, second portion 11B, reaches intermediate portion 11C as shown in Figure 1.The 11A of first portion is the part of the stator 21 of all within it fixed motors 20.Second portion 11B is the part of the cylinder 31 of all within it fixing compressors 30.Intermediate portion 11C is the part that is sandwiched in 11A of first portion and second portion 11B.At this intermediate portion 11C,, form distortion and apply regional 11S according to the present invention.This distortion applies regional 11S as shown in Figure 1, forms along the length A ground that circumferentially has of rotary driving axle 40 at intermediate portion 11C.
Distortion applies regional 11S and is formed between top SE and terminal EE around rotary driving axle 40.Top SE is in the angular position 1 around the rotary driving axle 40, and terminal EE is positioned at the angular position 2 around the rotary driving axle 40.Distortion applies regional 11S and forms circular-arc between top SE and terminal EE with having length A.
Distortion applies regional 11S and forms by carrying out local heating at the correction processing part 11W that is set in intermediate portion 11C from its periphery in mode of execution 1.The distortion that this local heating forms applies regional 11S and is formed on the enclosed compression device 100 that is in assembled state.Under this assembled state, have the motor 20 of stator 21 and motor rotor 25, compressor 30, and rotary driving axle 40 in seal container 10 internal configurations with cylinder 31 and compression rotor 35, stator 21 and cylinder 31 all are fixed in the interior week of cylinder shell 11, in addition, motor rotor 25 is connected by rotary driving axle 40 with compression rotor 35.In addition, under above-mentioned assembled state, liquid-storage container 50 is installed on seal container 10, and its connecting tube 52 is soldered to the connecting tube 54 that is fixed in cylinder shell 11 by soldering part 53.In addition, at cylinder shell 11 anchor portion housings 12,13, constitute seal container 10.
Distortion applying portion 11S applies permanent deformation to the cylinder shell 11 of the enclosed compression device 100 that is in above-mentioned assembled state, improve the same axle offset or the off-centre of rotary driving axle 40, improve the uniformity of the gap length of this rotary driving axle 40 air gap 27 on every side.Fig. 3 is applied the explanatory drawing of the permanent deformation that regional 11S applies cylinder shell 11 by distortion for explanation.Fig. 3 (a) and (b), (c) are the sectional view of the intermediate portion 11C of cylinder shell 11.Fig. 3 (a) illustrates and proofreaies and correct processing part 11W and its peripheral part 11P.Fig. 3 (b) illustrates the state that carries out local heating over against this correction processing part 11W, and Fig. 3 (c) illustrates the natural cooling state after this local heating.In Fig. 3 (c), correction processing part 11W becomes distortion and applies regional 11S.
Carry out local heating to proofreading and correct processing part 11W in the stage of Fig. 3 (b), make by this local heating and proofread and correct processing part 11W thermal expansion, apply pushing force Fb towards peripheral part 11P.This pushing force Fb extends ground generation effect with peripheral part 11P.Under the state of the local heating of carrying out this Fig. 3 (b), proofreading and correct processing part 11W towards direction generation opposite and the identical compressive plastic deformation of this pushing force Fb size with pushing force Fb.This compressive plastic deformation produces by the thermal expansion of the temperature rising generation of correction processing part 11W and the decline of yield strength.Proofread and correct processing part 11W and finish the back natural cooling in local heating.Proofread and correct processing part 11W and produce contraction, apply the contractile force Fc that peripheral part 11P is stretched by this natural cooling.This contractile force Fc shrinks by the identical amount of compressive plastic deformation of proofreading and correct processing part 11W and taking place by with its heating the time and produces, and this contractile force Fc is applied to cylinder shell 11 with becoming permanent deformation.
The variation characteristic of the air gap 27 around the rotary driving axle 40 is for example measured the enclosed compression device 100 that is in assembled state according to the known method that is disclosed in Japanese kokai publication hei 6-284655 communique.The variation characteristic of this air gap 27 is represented the relation that the gap length of angular orientation around the rotary driving axle 40 and the air gap 27 relative with it changes.
Proofread and correct processing part 11W for becoming the part that distortion applies regional 11S by local heating and natural cooling after this, to apply regional 11S corresponding with distortion, has the setting of top SE identical with it and terminal EE ground.The processing conditions of the angular position 1 of top SE, the terminal EE of this correction processing part 11W, θ 2 and correction processing part 11W is a heating condition, according to the variation characteristic of the air gap 27 around the rotary driving axle 40, make the uniformity of gap length of this air gap 27 be predetermined with improving.As a result, to apply the such contractile force Fc of uniformity that regional 11S will improve the gap length of the air gap 27 around the rotary driving axle 40 be that permanent deformation Fc puts on cylinder shell 11 in distortion.
In the assembling procedure of enclosed compression device 100, the initial first portion that the stator 21 of motor 20 is fixed in cylinder shell 11.After this, connect the pressing chamber 33 ground configuration driven running shafts 40 of the cylinder 31 of compressor 30, first, second bearing 37,38 is embedded into this rotary driving axle 40, behind these first, second bearing 37,38 supporting rotary driving axles 40, motor rotor 25 is installed on this rotary driving axle 40, under this state, cylinder 31 is fixed in the interior week of cylinder shell 11 by arc spot welding.After this, liquid-storage container 50 is installed, this connecting tube 52 and suction pipe 55 and connecting tube 54 solderings.
Cylinder 31 is being carried out in the operation of arc spot welding, make air gap 27 homogenization ground around rotary driving axle 40 of 25 of the stator 21 of motor 20 and motor rotors keep the position relation of stator 21 and motor rotor 25, under this state, carry out arc spot welding, but the reasons such as deviation of the deviation of the heat initial conditions of the deviation of the residual stress of cylinder shell 11 and arc spot welding, the weld interval of a plurality of arc spot welding point 32 make rotary driving axle 40 produce with axle offset or off-centre, and the gap length of the air gap 27 around this rotary driving axle 40 becomes inhomogeneous.
In addition,, cylinder shell 11 is heated once more, make the assembly department distortion of the cylinder 31 of compressor 30, produce inclination, off-centre at cylinder 31 being undertaken also connecting tube 54 being heated in the operation of soldering by the connecting tube 52 of 53 pairs of liquid-storage containers 50 of soldering part.The inclination of the cylinder 31 that this soldering produces, off-centre make that also the gap length of rotary driving axle 40 air gap 27 on every side is inhomogeneous.
The inhomogeneous of air gap 27 increases vibration, noise when enclosed compression device 100 operations, in the occasion that constitutes motor 20 by monocyclic-start induction motor, its startability is worsened, and, cause that also motor rotor 25 is contacted with the accident of stator 21 in the worst occasion.
In mode of execution 1, distortion applies enclosed compression device 100 formation that regional 11S is in assembled state relatively, so, the same axle offset or the off-centre of the rotary driving axle 40 that the heat input when the permanent deformation Fc that distortion applies regional 11S improves the arc spot welding of cylinder 31 of all residual stresss of cylinder shell 11 and compressor 30 in being in the enclosed compression device of assembled state causes, in addition, the same axle offset or the off-centre of the rotary driving axle 40 that the heat input during connecting tube 52 soldering of liquid-storage container 50 causes are also improved, and can improve the uniformity of the gap length of the air gap 27 around the rotary driving axle 40.In addition, at all interior enclosed compression devices 100, by measuring the variation characteristic of the air gap 27 around the rotary driving axle 40, thereby can improve the uniformity of the gap length of its air gap 27 about the enclosed compression device that comprises the manufacturing initial stage.
Mode of execution 2
Fig. 4 is the longitudinal section of mode of execution 2 that the manufacturing installation of the manufacturing that is used for enclosed compression device of the present invention is shown, and Fig. 5 is the block diagram of control system that the mode of execution 2 of manufacturing installation shown in Figure 4 is shown.This manufacturing installation is used for the manufacturing of Fig. 1, enclosed compression device shown in Figure 2 100, is used to form distortion and applies regional 11S.
The manufacturing installation 200 of this mode of execution 2 has air gap correcting device 210.This air gap correcting device 210 has housing 130 as shown in Figure 4, and assembling is used to form the various device that distortion applies regional 11S in this housing 130.Housing 130 has upper body 140 and lower case 150.At the bottom of upper body 140 configuration base 101, configuration turntable 102 on this base 101.This turntable 102 can configuration rotatably in horizontal plane.The enclosed compression device 100 that is in assembled state is set on this turntable 102.Enclosed compression device 100 makes the axis of rotary driving axle 40 consistent with the axis of turntable 102, and foot's housing 15 is installed on the turntable 102.Set up locating stud 103 at turntable 102.These locating stud 103 relative turntables 102 are set to predetermined initial setting position with enclosed compression device 100.The sense of rotation of turntable 102 illustrates with arrow R.
Driving mechanism 105 and retarder 104 at lower case 150 configuration turntables 102.Driving mechanism 105 for example is a motor, is rotated driving via 104 pairs of turntables 102 of retarder.The output shaft 104a of retarder 104 extends along vertical direction, is connected in turntable 102.
Also dispose processing head 106, mobile mechanism 120, fuel gas supply pipe 107, oxygen supplying pipe 108, input mechanism 109 in upper body 140.Processing head 106 for example is made of gas burner.The intermediate portion 11C that processing head 106 makes its front end add the cylinder shell 11 of the Ministry of worker and enclosed compression device 100 disposes opposite to each other.Mobile mechanism 120 radially drives processing head 106 towards direction shown in the arrow B along enclosed compression device 100, and processing head 106 is advanced towards enclosed compression device 100, then, moves from it with retreating.When the formation distortion applied regional 11S, processing head 106 was put mobile towards advanced potential by mobile mechanism 120, but after the formation distortion applied regional 11S, processing head 106 moved to going-back position.At progressive position, the front end of processing head 106 adds the periphery of the Ministry of worker near cylinder shell 11, and the flame of processing head 106 is directly jetted to proofreading and correct processing part 11W.
Mobile mechanism 120 has guide rail 121 and driving mechanism 122.Guide rail 121 is towards the radially extension ground configuration of cylinder shell 11.At driving mechanism 122 processing head 106 is installed.Driving mechanism 122 mountings make processing head 106 near cylinder shell 11 ground processing head 106 be advanced on guide rail 121, in addition, from cylinder shell 11 processing head 106 are retreated.
Fuel gas supply pipe 107 and oxygen supplying pipe 108 are connected in processing head 106, to processing head 106 fueling gases hydrocarbon gas C for example 2H 2With oxygen O 2, produce flame in the Ministry of worker that adds of the front end of processing head 106.This flame carries out local heating to proofreading and correct processing part 11W, forms distortion and applies regional 11S.
The control system of air gap correcting device 210 as shown in Figure 5, comprise input mechanism 109, s operation control mechanism 110, sequencer 111, servoamplifier 112, reach gas flow controller 113, the delivery volume of the fuel gas and the oxygen of controlling and driving mechanism 105 and relative processing head 106.S operation control mechanism 110 for example is made of personal computer.Input mechanism 109 is a touch pad for example, constitutes the input mechanism of relative s operation control mechanism 110.The variation characteristic of the air gap 27 around the rotary driving axle 40 of these input mechanism 109 input enclosed compression devices 100.
The variation characteristic of this air gap 27 is measured by the known method that for example is disclosed in Japanese kokai publication hei 6-28465 communique as described above.In this known method, about the enclosed compression device 100 that is in assembled state, make motor 20 rotations practically, in the periphery of cylinder shell 11 2 vibration detecting sensors are installed, measure the variation characteristic of air gap 27.In 2 vibration detecting sensors first detecting sensor of shaking is set to the position of the attraction force maximum that the 23 pairs of motor rotors of stator coil 25 by motor 20 produce, in addition, second vibration transducer is set to around rotary driving axle 40 from first vibration detecting sensor by 90 degree position spaced.
S operation control mechanism 110 is according to the variation characteristic of the air gap 27 of input, and computing is a heating condition with angular position 1, θ 2 and the processing conditions of relative this correction processing part 11W that processing part 11W is proofreaied and correct in decision.Proofread and correct the angular position 1 of processing part 11W, top SE and the terminal EE that the distortion shown in Figure 1 of θ 2 regulations applies regional 11S.Heating condition is the heat that adds of relative correction processing part 11W, the delivery volume of the relative processing head 106 with oxygen of control fuel gas.
Driving mechanism 105 is controlled via sequencer 111 and servoamplifier 112 by s operation control mechanism 110.This drive motor 105 is initial as the preparation driving, under the state of processing head 106 fueling G﹠Os, do not make turntable 102 rotations, for enclosed compression device 100, the top SE that turntable 102 is rotated to proofread and correct processing part 11W from the initial setting position and processing head 106 front ends add the consistent state of the Ministry of worker.Then, fuel gas and oxygen are supplied to processing head 106, produce under the state of flame, drive as proofreading and correct processing at processing head 106, turntable 102 is driven, add Ministry of worker's consistent location up to terminal EE that proofreaies and correct processing part 11W and processing head 106 front ends.This correction processing drives processing head 106 is controlled to the state of progressive position by mobile mechanism 120 under to be carried out, and the decision distortion applies angular position 1, the θ 2 of regional 11S.
Gas flow controller 113 is configured in 106 of fuel gas storage bottle 114 and oxygen storage bottle 115 and processing heads.This gas flow controller 113 is controlled via sequencer 111 from s operation control mechanism 110, and the heat that adds of the local heating of processing head 106 is controlled.Being controlled at of heat that add of this local heating controlled to processing head 106 under the state of progressive position by mobile mechanism 120 and to carry out, and control is applied the size of the permanent deformation Fc that regional 11S produces by distortion.
Fig. 6 illustrates the performance plot of relation that distortion applies the adjustment amount of the angular range of regional 11S and air gap.The transverse axis of Fig. 6 represents to be out of shape the angular range (length A) that applies regional 11S, and the angular range 180 degree from the angular orientation 0 around the rotary driving axle 40 to the angular orientation is shown.The longitudinal axis of Fig. 6 is represented to be out of shape and is applied the adjustment amount of regional 11S to air gap 27.
Fig. 6 illustrates 3 adjustment amount characteristic C1, C2, C3.Adjustment amount characteristic C1 is the characteristic when setting a trap the adding heat and be c1 of portion heating, adjustment amount characteristic C2, the C3 characteristic during for the adding heat and be c2, c3 of the portion's of setting a trap heating respectively.As can be seen, by being set at the relation of c1＜c2＜c3, increase the heat that adds of local heating, thereby can increase the adjustment amount of air gap 27.
Fig. 6 example illustrates distortion and applies the occasion of the angular range of regional 11S for from 0 to 180 degree.Yet distortion applies the angular range of regional 11S as below 180 degree, can read the adjustment amount characteristic of air gap 27 from the characteristic of Fig. 6.When distortion applied regional 11S and is in 2 of angular position 1 and angular position as shown in Figure 1, its angular range, theta was θ=θ 2-θ 1, can read the adjustment amount characteristic of air gap 27 of the scope from angle 0 to angle θ of Fig. 6.The adjustment amount characteristic of 110 these Fig. 6 of storage of s operation control mechanism, according to this adjustment amount characteristic, decision is proofreaied and correct angular position 1, the θ 2 of processing part 11W and is added heat.
As described above, the manufacturing installation 200 of mode of execution 2 comprises air gap correcting device 210, this air gap correcting device 210 is in the cylinder shell 11 of the enclosed compression device 100 of assembled state relatively and proofreaies and correct processing from its periphery, form distortion and apply regional 11S, so, in the enclosed compression device 100 that is in assembled state, the same axle offset or the off-centre of the rotary driving axle 40 that the heat input in the time of can improving the arc spot welding of cylinder 31 of all residual stresss of cylinder shell 11 and compressor 30 causes, in addition, the same axle offset or the off-centre of the rotary driving axle 40 that the heat input the during soldering of the connecting tube 52 of liquid-storage container 50 causes also improve, and can improve the uniformity of the gap length of the air gap 27 around the rotary driving axle 40.In addition, in all interior enclosed compression devices 100, by measuring the variation characteristic of the air gap 27 around the rotary driving axle 40, thereby can improve the uniformity of the gap length of this air gap 27 at the enclosed compression device that comprises the manufacturing initial stage.
Mode of execution 3
Fig. 7 is the flow chart of mode of execution 3 that the manufacture method of enclosed compression device of the present invention is shown.The manufacture method of this mode of execution 3 is the manufacture method of the enclosed compression device 100 of mode of execution 1, uses the air gap correcting device 210 of mode of execution 2 to apply regional 11S in enclosed compression device 100 formation distortion.
Flow chart shown in Figure 7 comprises the assembling procedure ASS of enclosed compression device 100 and the air gap correcting process AMA after this assembling procedure ASS.In assembling procedure ASS, like that, assembling does not form the enclosed compression device 100 that distortion applies regional 11S shown in Fig. 8 (a).Under the assembled state of this enclosed compression device 100, as described above, have the motor 20 of stator 21 and motor rotor 25, compressor 30, and live axle 40 in the internal configurations of seal container 10 with cylinder 31 and compression rotor 35, stator 21 and cylinder 31 are fixed in the interior week of cylinder shell 11, in addition, motor rotor 25 is connected by live axle 40 with compression rotor 35.In addition, under above-mentioned assembled state, liquid-storage container 50 is installed on seal container 10, and its connecting tube 52 is soldered to seal container 10 by soldering part 53, at cylinder shell 11 engagement end portion housings 12,13.
Air gap correcting process AMA implements after assembling procedure ASS finishes, and forms distortion at the enclosed compression device 100 that is in assembled state like that and apply regional 11S shown in Fig. 8 (b), the homogenization of the gap length of the air gap 27 of realization enclosed compression device 100.The enclosed compression device 100 of Fig. 8 (b) is identical with enclosed compression device shown in Figure 2 100.Air gap correcting process AMA comprises 11 steps as shown in Figure 7 from ST100 to ST110.In initial step ST100, measure the variation characteristic of rotary driving axle 40 air gap 27 on every side of the enclosed compression device 100 that is in assembled state by known testing apparatus.
Among the step ST101 below, the enclosed compression device 100 that will be in assembled state is set on the turntable 102.In this step ST101, use locating stud 103 that enclosed compression device 100 is set to the initial setting position, be set on the turntable 102.Turntable 102 is set to the initial setting position.Among the step ST102 below, the variation characteristic of the air gap 27 that will be measured by step ST100 is input to input mechanism 109.Among the step ST103 below, according to the variation characteristic of the air gap of importing 27, the processing conditions of being proofreaied and correct angular position 1, θ 2 and the correction processing part 11W of processing part 11W by 110 computings of s operation control mechanism is a heating condition.At this step ST103, s operation control mechanism 110 uses the adjustment amount characteristic of air gap shown in Figure 6, the delivery volume of the fuel gas and the oxygen of angular position 1, θ 2 and the relative processing head 106 of decision correction processing part 11W.
In following step ST104, prepare driving by 105 pairs of turntables 102 of drive motor, make turntable 102 rotate to the correction processing initial position of enclosed compression device 100 from the initial setting position.In this step ST104, driving is as one man prepared to enclosed compression device 100 with the top (angular position 1) of proofreading and correct processing part 11W in the position that makes the front end of processing head 106 add the Ministry of worker.In following step ST105, be heating condition according to processing conditions by 110 computings of s operation control mechanism, set the delivery volume of fuel gas and oxygen by gas flow controller 113.
In following step ST106, make processing head 106 carry out moving of progressive position by mobile mechanism 120, in processing head 106 igniting, begin proofreading and correct the local heating of processing part 11W.In step ST107, proofread and correct processing by 105 pairs of turntables 102 of drive motor and drive, enclosed compression device 100 relative processing heads 106 are rotated relatively.This correction processing drives at processing head 106 jets flame under the state of proofreading and correct processing part 11W shift calibrating processing part 11W.This correction processing drives the consistent continuation before with the terminal (angular position 2) of proofreading and correct processing part 11W in position that adds the Ministry of worker at the front end of processing head 106.
In following step ST108, it is consistent with the terminal (angular position 2) of proofreading and correct processing part 11W to make the front end of processing head 106 add the position of the Ministry of worker, make processing head 106 flame-out, and stop the rotation that drive motor 105 produces turntable 102, make processing head 106 retreat into going-back position by mobile mechanism 120.In following step ST109, make turntable 102 return to the initial setting position, finish operation at step ST110.
In forming the enclosed compression device 100 that is out of shape before applying regional 11S, such shown in Fig. 8 (a), the gap length g1 that for example in the upper end part of stator 21 and motor rotor 25 also is the left side is littler than the gap length g2 on its right side, in addition, at the end portion of stator 21 and motor rotor 25, the gap length g3 in left side is littler than the gap length g4 on its right side.Be g1＜g2, g3＜g4.In addition, air gap g1 is littler than air gap g3, and air gap g2 is bigger than air gap g4, so, g1＜g3, g2＞g4.That is, motor rotor 25 relative stator 21 are the center rotation with cylinder 31, are in the state of inclination, become g1＜g3＜g4＜g2.Fix or the skew of the air gap that the soldering of cylinder 31 and connecting tube 52 produces is essentially such state shown in Fig. 8 (a) by the arc spot welding of cylinder 31 and cylinder shell 11.
Apply in the enclosed compression device 100 of regional 11S in the formation distortion, such shown in Fig. 8 (b), from the periphery of cylinder shell 11 distortion is applied the position that regional 11S is formed into becomes less gap length g1, g3, these gap lengths g1, g2, g3, g4 evenly turn to uniform gap length g.
As described above, in the manufacture method of the enclosed compression device of mode of execution 3, comprise air gap correcting process AMA, this air gap correcting process AMA is in the cylinder shell 11 of the enclosed compression device 100 of assembled state relatively and proofreaies and correct processing from its periphery, form distortion and apply regional 11S, so, in the enclosed compression device 100 of assembled state, improve the same axle offset or the off-centre of the rotary driving axle 40 that the heat input of cylinder 31 when arc spot welding of all residual stresss of cylinder shell 11 and compressor 30 bring, in addition, the same axle offset or the off-centre of the rotary driving axle 40 that the heat input of the connecting tube 52 of liquid-storage container 50 when soldering causes also improve, and can improve the uniformity of the gap length of rotary driving axle 40 air gap 27 on every side.In addition, at all interior enclosed compression devices 100, by measuring the variation characteristic of the air gap 27 around the rotary driving axle 40, thereby can improve the uniformity of the gap length of its air gap 27 about the enclosed compression device at initial stage of comprising manufacturing.
Mode of execution 4
Fig. 9 is the sectional view that the mode of execution 4 of enclosed compression device of the present invention is shown.In the enclosed compression device 100A of this mode of execution 4, the distortion of mode of execution 1 applies regional 11S and changes into distortion applying portion 11F, and this distortion applying portion 11F forms by making correction processing part 11W carry out local deformation.Other constitutes and the enclosed compression device 100 of mode of execution 1 constitutes in the same manner.
The distortion applying portion 11F of the enclosed compression device 100A of mode of execution 4 forms by making correction processing part 11W local deformation.This proofreaies and correct s operation control mechanism 110 decisions of the position of processing part 11W by mode of execution 2, has top SE and terminal EE.Processing head 106 forms the local deformation head that applies external force at this correction processing part 11W from its periphery.Distortion applying portion 11F forms the pressure that correction processing part 11W applies the size that is determined by s operation control mechanism 110 by made the local deformation head by s operation control mechanism 110.The pressure ground that applies by the size of s operation control mechanism 110 decisions in the scope of local deformation head from the top SE that proofreaies and correct processing part 11W to terminal EE rotates turntable 102.
Also to apply regional 11S same with the distortion of mode of execution 1 for the distortion applying portion 11F of mode of execution 4, and cylinder shell 11 is applied permanent deformation Fc, improves the uniformity of the gap length of the air gap 27 around the rotary driving axle 40.
Enclosed compression device of the present invention for example is used for air conditioner, refrigerator etc.

Claims (12)

1. an enclosed compression device has seal container, motor, compressor, reaches the rotary driving axle;
This seal container has cylinder shell;
This motor have the stator that is fixed in week in the described cylinder shell and in air gap and this stator phase to motor rotor;
This compressor has and is fixed in the described cylinder shell week and forms the cylinder of pressing chamber and the compression rotor that rotates in described pressing chamber;
This rotary driving axle is delivered to described compression rotor with the rotating force of described motor rotor; It is characterized in that:
Described cylinder shell has the distortion that forms from its periphery and applies the zone, and this distortion applies the zone described cylinder shell is applied permanent deformation, improves the gap length uniformity of the axial described air gap of described rotary driving.
2. enclosed compression device according to claim 1 is characterized in that: described distortion applies between the second portion that the zone is formed at the first portion of fixing described stator of described cylinder shell and fixing described cylinder.
3. enclosed compression device according to claim 1 is characterized in that: described distortion applies the zone and forms by described cylinder shell is carried out local heating.
4. enclosed compression device according to claim 1 is characterized in that: described distortion applies the regional predetermined length ground that circumferentially has along described cylinder shell and forms.
5. enclosed compression device according to claim 1 is characterized in that: described distortion applies the zone and forms by making described cylinder shell carry out local deformation.
6. the manufacturing installation of an enclosed compression device is characterized in that: have relative enclosed compression device and carry out the air gap correcting device that air gap is proofreaied and correct; This enclosed compression device under assembled state at least at the stator that is fixed with motor interior week of the cylinder shell of seal container and the cylinder of compressor, the motor rotor of described motor across the interior phase of air gap and described stator to, described motor rotor is connected in the compression rotor of described compressor by the rotary driving axle;
Described air gap correcting device has processing head and s operation control mechanism; This processing head is proofreaied and correct processing with respect to the described cylinder shell of the enclosed compression device that is in described assembled state from its periphery, and the inhomogeneity distortion of gap length that is formed for improving the axial described air gap of described rotary driving applies the zone; The position and the processing conditions of the described correction processing of this s operation control mechanism computing are controlled described processing head.
7. the manufacturing installation of enclosed compression device according to claim 6, it is characterized in that: under described assembled state, also the periphery at described cylinder shell is equipped with liquid-storage container, this liquid-storage container be brazed in the connecting tube of described cylinder shell connecting tube.
8. the manufacturing installation of enclosed compression device according to claim 6, it is characterized in that: the input of described s operation control mechanism is the variation characteristic of the axial described air gap of described rotary driving that is measured to of object with the enclosed compression device that is in described assembled state, according to the position and the processing conditions of the described correction processing of the variation characteristic computing of this air gap.
9. the manufacture method of an enclosed compression device comprises assembling procedure and air gap correcting process; It is characterized in that: described assembling procedure is at the stator of interior all fixed motors of the cylinder shell that constitutes seal container and the cylinder of compressor, the motor rotor that makes described motor across the interior phase of air gap and described stator to, described motor rotor is connected in the compression rotor of described compressor by the rotary driving axle, carry out the assembling of described enclosed compression device thus
In addition, described air gap correcting process described cylinder shell with respect to described enclosed compression device behind described assembling procedure is proofreaied and correct processing from its periphery, and the inhomogeneity distortion of gap length that is formed for improving the axial described air gap of described rotary driving applies the zone.
10. the manufacture method of enclosed compression device according to claim 9 is characterized in that: in described assembling procedure, also in the periphery of described cylinder shell liquid-storage container is installed, with the connecting tube that is brazed in described cylinder shell connecting tube of this liquid-storage container.
11. the manufacture method of enclosed compression device according to claim 9 is characterized in that: in described air gap correcting process, described correction is processed as local heating, forms described distortion by this local heating and applies the zone.
12. the manufacture method of enclosed compression device according to claim 9, it is characterized in that: described air gap correcting process comprises: the operation of measuring the variation characteristic of the axial described air gap of described rotary driving, variation characteristic according to described air gap determines the position of described correction processing and the operation of processing conditions, reaches the operation of described cylinder shell being proofreaied and correct processing according to the position and the processing conditions of described correction processing.
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CN107425683A (en) * 2017-08-22 2017-12-01 安徽美芝精密制造有限公司 Control method on compressor, air conditioner and compressor winding electrically
CN111287967A (en) * 2018-12-07 2020-06-16 广东美芝精密制造有限公司 Rotary compressor
CN114667394A (en) * 2019-11-21 2022-06-24 三菱电机株式会社 Sealed compressor, refrigeration cycle device, and method for manufacturing sealed compressor

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US4547131A (en) * 1983-07-25 1985-10-15 Copeland Corporation Refrigeration compressor and method of assembling same
JP2605512B2 (en) * 1991-07-30 1997-04-30 ダイキン工業株式会社 Compressor and method of manufacturing compressor
JP3443132B2 (en) * 1993-03-30 2003-09-02 三洋電機株式会社 Method of detecting air gap deviation in rotor of rotary compressor motor and method of improving air gap deviation in rotor using the method of detecting deviation
JPH08284858A (en) * 1995-04-12 1996-10-29 Sanyo Electric Co Ltd Manufacture of rotary compressor
JP4206555B2 (en) * 1999-04-07 2009-01-14 ダイキン工業株式会社 Compressor

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CN105736321A (en) * 2016-04-18 2016-07-06 瑞智(青岛)精密机电有限公司 Novel compressor top cover capable of increasing pulse times
CN107425683A (en) * 2017-08-22 2017-12-01 安徽美芝精密制造有限公司 Control method on compressor, air conditioner and compressor winding electrically
CN111287967A (en) * 2018-12-07 2020-06-16 广东美芝精密制造有限公司 Rotary compressor
CN114667394A (en) * 2019-11-21 2022-06-24 三菱电机株式会社 Sealed compressor, refrigeration cycle device, and method for manufacturing sealed compressor

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