CN105114314A - Rotary compressor and assembly method thereof - Google Patents
Rotary compressor and assembly method thereof Download PDFInfo
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- CN105114314A CN105114314A CN201510471112.XA CN201510471112A CN105114314A CN 105114314 A CN105114314 A CN 105114314A CN 201510471112 A CN201510471112 A CN 201510471112A CN 105114314 A CN105114314 A CN 105114314A
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Abstract
The invention discloses a rotary compressor and an assembly method thereof. The rotary compressor comprises a casing, a motor and a compressing mechanism, wherein the motor is arranged in the casing; the motor comprises a stator and a rotor; the compressing mechanism comprises a main bearing, an air cylinder assembly, an auxiliary bearing and a crankshaft, wherein the main bearing and the auxiliary bearing are respectively and axially arranged at two ends of the air cylinder assembly, one end of the crankshaft penetrates through the main bearing, the air cylinder assembly and the auxiliary bearing, the other end of the crankshaft is connected with the rotor, and the stator is fixedly connected to the main bearing. According to the rotary compressor disclosed by the invention, the stator is fixedly connected to the main bearing, so that the inner circle of the stator is not liable to deform, and the properties and the reliability of the rotary compressor are improved.
Description
Technical field
The present invention relates to Compressor Technology field, especially relate to a kind of rotary compressor and assembly method thereof.
Background technique
In correlation technique, the assembly method of rotary compressor motor and compressing mechanism is: by the rotor hot jacket of motor on the bent axle of compressing mechanism, then by the stator heating jacket of motor on housing, finally with three spot welding, compressing mechanism and housing are secured together.For guaranteeing the air gap between stators and rotators in assembly process, clearance gauge is adopted to be positioned between stators and rotators.But, this assembly method has following defect: one is that the thermal stress of hot jacket can cause the inner circle of stator to be out of shape, two is that the thermal stress of three spot welding can cause compressing mechanism deflection, the gap of adding clearance gauge is larger, thus make the air gap between stators and rotators be difficult to ensure evenly, finally to affect the Performance And Reliability of rotary compressor.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, one object of the present invention is to propose a kind of rotary compressor, and described rotary compressor structure is simple, easy to assembly and performance is good.
Another object of the present invention is the assembly method proposing a kind of rotary compressor.
Rotary compressor according to a first aspect of the present invention, comprises housing; Motor, described motor is located in described housing, and described motor comprises stators and rotators; And compressing mechanism, described compressing mechanism comprises main bearing, cylinder assembly, supplementary bearing and bent axle, described main bearing and described supplementary bearing are located at the axial two ends of described cylinder assembly respectively, one end of described bent axle run through described main bearing, described cylinder assembly with described supplementary bearing and the other end be connected with described rotor, wherein said stator is fixedly connected on described main bearing.
According to rotary compressor of the present invention, by being fixedly connected on main bearing by stator, make the inner circle of stator not yielding, thus improve performance and the reliability of rotary compressor.
In addition, following additional technical characteristics can also be had according to rotary compressor of the present invention:
According to one embodiment of present invention, rotary compressor comprises further: at least one threaded fastener, and described threaded fastener is connected with described main bearing through after described stator.
Further, described main bearing is provided with at least one connection bump extended towards the direction of described stator, and described threaded fastener is connected with described connection bump through after described stator.
Alternatively, described connection bump is formed as the annular protrusion that extends along the circumference of described main bearing.
Alternatively, to be multiple and described multiple connection bump to be spaced apart from each other setting along the circumference of described main bearing described connection bump.
Alternatively, described multiple connection bump is arranged along the circumferential uniform intervals of described main bearing.
Alternatively, described threaded fastener is screw.
According to one embodiment of present invention, in described main bearing, described cylinder assembly and described supplementary bearing described at least one be fixedly attached to described housing.
According to one embodiment of present invention, described rotor is located in described stator rotationally.
The assembly method of rotary compressor according to a second aspect of the present invention, described rotary compressor comprises housing, be located at the motor in described housing, compressing mechanism, and at least one threaded fastener, described motor comprises stators and rotators, described compressing mechanism comprises cylinder assembly, be located at main bearing and the supplementary bearing at the axial two ends of described cylinder assembly respectively, described main bearing is run through in one end, described cylinder assembly is with described supplementary bearing and the bent axle that is connected with described rotor of the other end, described threaded fastener is connected with described main bearing through after described stator, described assembly method comprises the following steps:
S1, described stator is placed on the described main bearing of described compressing mechanism;
S2, between described stator and described bent axle, place Pneumatic fixture to adjust the concentricity of described stator and described bent axle;
S3, by least one threaded fastener described through being connected with described main bearing after described stator; And
S4, exit described Pneumatic fixture.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the structural representation of the rotary compressor according to the embodiment of the present invention;
Fig. 2 is the plan view of the main bearing shown in Fig. 1;
Fig. 3 is the sectional drawing of the main bearing shown in Fig. 2;
Fig. 4 is the plan view of the stator iron core shown in Fig. 1;
Fig. 5 is the sectional drawing of the stator iron core shown in Fig. 4;
Fig. 6 is the assembling schematic diagram of the rotary compressor according to the embodiment of the present invention.
Reference character:
100: rotary compressor; 1: housing; 2: motor; 21: stator; 211: stator iron core; 2111: through hole;
22: rotor; 3: compressing mechanism; 31: main bearing; 311: connection bump; 32: cylinder 33: supplementary bearing;
34: bent axle; 35: piston; 4: threaded fastener; 5: Pneumatic fixture;
6: upper shell; 7: liquid-storage container.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " top ", " end ", " interior ", " outward ", " axis ", " radial direction ", the orientation of the instruction such as " circumference " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is less than second feature.
Below with reference to Fig. 1-Fig. 6, the rotary compressor 100 according to the embodiment of the present invention is described.
As shown in Figure 1, the rotary compressor 100 of embodiment according to a first aspect of the present invention, comprises housing 1, motor 2 and compressing mechanism 3.
Alternatively, rotary compressor 100 can be vertical compressor.Certainly, those skilled in the art are appreciated that rotary compressor 100 can also be horizontal compressor (scheming not shown).Here, it should be noted that, " vertical compressor " can be understood as the central axis upright of the cylinder 32 of the compressing mechanism 3 of rotary compressor 100 in the compressor of the attachment face of rotary compressor 100, such as, as shown in Figure 1, the central axis of cylinder 32 vertically extends.Correspondingly, " horizontal compressor " can be understood as the centerline axis parallel of cylinder 32 in the compressor of the attachment face of rotary compressor 100.In description below the application, be described for vertical compressor for rotary compressor 100.
Motor 2 is located in housing 1, and motor 2 comprises stator 21 and rotor 22.Alternatively, rotor 22 is located in stator 21 rotationally.Compressing mechanism 3 comprises main bearing 31, cylinder assembly, supplementary bearing 33 and bent axle 34, main bearing 31 and supplementary bearing 33 are located at the axial two ends of cylinder assembly respectively, such as, in the example of fig. 1, main bearing 31 is positioned at the upper end of cylinder assembly, and supplementary bearing 33 is positioned at the lower end of cylinder assembly.One end of bent axle 34 run through main bearing 31, cylinder assembly with supplementary bearing 33 and the other end be connected with rotor 22.As shown in Figure 1, main bearing 31, cylinder assembly and supplementary bearing 33 is run through in the lower end of bent axle 34, and the upper end of bent axle 34 is connected with rotor 22.
When rotary compressor 100 is single cylinder compressor, cylinder assembly comprises a cylinder 32, and now main bearing 31 is located at the upper end of this cylinder 32, and supplementary bearing 33 is located at the lower end of this cylinder 32.Such as, as shown in Figure 1, cylinder 32 has compression chamber, intakeport and is communicated with compression chamber and the vane slot extended along the radial direction of cylinder 32, piston 35 is provided with in compression chamber, piston 35 can roll along the inwall of compression chamber, slide plate is movably provided with in vane slot, the inner of slide plate is only supported so that compression chamber is divided into air aspiration cavity and exhaust cavity with the periphery wall of piston 35 respectively, intakeport is communicated with to feed refrigerant to be compressed in compression chamber with air aspiration cavity, exhaust cavity is used for the refrigerant after by compression and is expelled to outside cylinder 32.Wherein, direction " interior " can be understood as towards the direction at cylinder 32 center, and its opposite direction is defined as " outward ", namely away from the direction at cylinder 32 center.When machine operation, rotor 22 drives the piston 35 be set on the eccentric part of bent axle 34 to rotate, to compress the refrigerant entered in compression chamber.
When rotary compressor 100 is for multicylinder compressor (scheming not shown), cylinder assembly comprises multiple cylinder 32, be provided with dividing plate between adjacent two cylinders 32, main bearing 31 is located at the upper end of the cylinder 32 of the top, and supplementary bearing 34 is located at the lower end of the cylinder 32 of bottom.Wherein stator 21 is fixedly connected on main bearing 31.Thus, the assembly technology of stator 21 can be improved, make the inner circle of stator 21 not yielding.
According to the rotary compressor 100 of the embodiment of the present invention, by being fixedly connected on main bearing 31 by stator 21, make the inner circle of stator 21 not yielding, thus improve performance and the reliability of rotary compressor 100.
According to one embodiment of present invention, rotary compressor 100 comprises further: at least one threaded fastener 4, and threaded fastener 4 is connected with main bearing 31 through after stator 21.With reference to Fig. 4 and Fig. 5, stator iron core 211 is provided with through hole 2111, and threaded fastener 4 can be connected with main bearing 31 through the through hole 2111 on stator iron core 211.Alternatively, threaded fastener 4 is screw.
According to one embodiment of present invention, main bearing 31 is provided with at least one connection bump 311 extended towards the direction of stator 21, and with reference to Fig. 3, connection bump 311 vertically extends towards the direction of stator 21.Threaded fastener 4 is connected with connection bump 311 through after stator 21, now, is fixedly connected on main bearing 31 by stator 21 by connection bump 311.
Wherein, connection bump 311 can be formed as the annular protrusion extended along the circumference of main bearing 31, and now, annular protrusion constitutes the shirt rim that main bearing 31 lengthens; Connection bump 311 also can be protruding for the separate feet vertically extended to form towards the direction of stator 21, and a feet projection can be one or more.When feet projection is multiple, multiple feet projections to be spaced apart from each other setting along the circumferences of main bearing 31.Alternatively, multiple the protruding circumferential uniform intervals along main bearing 31 of feet are arranged.Such as, in the example of Fig. 2 and Fig. 3, connection bump 311 is that the separate feet vertically extended to form towards the direction of stator 21 is protruding.The quantity of propping up feet projection is 4, and the protruding circumferential uniform intervals along main bearing 31 of above-mentioned 4 feet is arranged, and thus, stator 21 can be connected on main bearing 31 securely, and technique is simple, is easy to realization.
According to one embodiment of present invention, in main bearing 31, cylinder assembly and supplementary bearing 33 above-mentioned at least one be fixedly attached to housing 1.Specifically, in main bearing 31, cylinder assembly and supplementary bearing 33 can be fixedly attached to housing 1; Also two in main bearing 31, cylinder assembly and supplementary bearing 33 can be fixedly attached to housing 1, namely can main bearing 31 and cylinder assembly be fixedly attached on housing 1, or cylinder assembly and supplementary bearing 33 are fixedly attached on housing 1, or main bearing 31 and supplementary bearing 33 are fixedly attached on housing 1; Main bearing 31, cylinder assembly and supplementary bearing 33 all can also be fixedly attached on housing 1.Wherein, be fixedly connected with and can be realized by hot jacket, also can be realized by three spot welding, the present invention does not make particular determination to this.
According to a specific embodiment of the present invention, rotary compressor 100 comprises: housing 1, motor 2 and compressing mechanism 3.Motor 2 is located in housing 1, and motor 2 comprises stator 21 and rotor 22, and rotor 22 is located in stator 21 rotationally.Compressing mechanism 3 comprises main bearing 31, cylinder assembly, supplementary bearing 33 and bent axle 34, main bearing 31 is located at the upper end of cylinder assembly, supplementary bearing 33 is located at the lower end of cylinder assembly, the lower end of bent axle 34 run through main bearing 31, cylinder assembly with supplementary bearing 33 and upper end be connected with rotor 22.Main bearing 31 is provided with 4 connection bumps 311 of the setting of uniform intervals each other extended towards the direction of stator 21, screw is connected with connection bump 311 through after stator 21, thus stator 21 is fixedly connected on main bearing 31, main bearing 31 is fixedly attached to housing 1.The rotary compressor 100 of this structure, not only technique is simple, easy to assembly, also accurately can adjust the air gap between stator 21 and rotor 22, thus improves the performance of rotary compressor 100.
The rotary compressor 100 of embodiment according to a first aspect of the present invention, stator 21 is fixedly connected on main bearing 31, structure is simple, and effectively improve assembly technology, make that the inner circle of stator 21 is not yielding, size of gaps between stator 21 and rotor 22 is suitable, thus, improve performance and the reliability of rotary compressor 100.
The assembly method of the rotary compressor 100 of embodiment according to a second aspect of the present invention, rotary compressor 100 comprises housing 1, be located at the motor 2 in housing 1, compressing mechanism 3, and at least one threaded fastener 4, motor 2 comprises stator 21 and rotor 22, compressing mechanism 3 comprises cylinder assembly, be located at main bearing 31 and the supplementary bearing 33 at the axial two ends of cylinder assembly respectively, main bearing 31 is run through in one end, cylinder assembly is with supplementary bearing 33 and the bent axle 34 that is connected with rotor 22 of the other end, threaded fastener 4 is connected with main bearing 31 through after stator 21, assembly method comprises the following steps:
S1, stator 21 is placed on the main bearing 31 of compressing mechanism 3;
S2, between stator 21 and bent axle 34, place Pneumatic fixture 5 to adjust the concentricity of stator 21 and bent axle 34;
S3, at least one threaded fastener 4 to be connected with main bearing 31 through after stator 21; And
S4, exit Pneumatic fixture 5.
Such as, in the example of fig. 6, during assembling, first stator 21 is placed on the main bearing 31 of compressing mechanism 3, between stator 21 and bent axle 34, places Pneumatic fixture 5 to adjust the concentricity of stator 21 and bent axle 34.When Pneumatic fixture 5 uses, inwardly can hold bent axle 34 tightly, outwards can the inner circle of close contact support stator 21, now, adjustable stator 21, bent axle 34 and the cooperation position of Pneumatic fixture 5, make stator 21 and bent axle 34 fix.After fixing stator 21 and bent axle 34, with at least one threaded fastener 4 through stator 21, it is made to be connected with main bearing 31, with backed off after random Pneumatic fixture 5.Then by rotor 22 hot jacket on bent axle 34, and main casing 1 hot jacket or three spot welding are fixed on main bearing 31, finally, install housing 6 and liquid-storage container 7 and weld, completing the assembling of rotary compressor 100 entirety.
The assembly method of the rotary compressor 100 of embodiment according to a second aspect of the present invention, threaded fastener 4 is adopted to be fixedly connected on main bearing 31 by stator 21, make the inner circle of stator 21 not yielding, and when assembling stator 21, have employed high-precision Pneumatic fixture 5 and adjust air gap between stator 21 and rotor 22, improve the uniformity of air gap between stator 21 and rotor 22, thus improve performance and the reliability of rotary compressor 100.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (10)
1. a rotary compressor, is characterized in that, comprising:
Housing;
Motor, described motor is located in described housing, and described motor comprises stators and rotators; And
Compressing mechanism, described compressing mechanism comprises main bearing, cylinder assembly, supplementary bearing and bent axle, described main bearing and described supplementary bearing are located at the axial two ends of described cylinder assembly respectively, one end of described bent axle run through described main bearing, described cylinder assembly with described supplementary bearing and the other end be connected with described rotor, wherein said stator is fixedly connected on described main bearing.
2. rotary compressor according to claim 1, is characterized in that, comprises further:
At least one threaded fastener, described threaded fastener is connected with described main bearing through after described stator.
3. rotary compressor according to claim 2, is characterized in that, described main bearing is provided with at least one connection bump extended towards the direction of described stator, and described threaded fastener is connected with described connection bump through after described stator.
4. rotary compressor according to claim 3, is characterized in that, described connection bump is formed as the annular protrusion extended along the circumference of described main bearing.
5. rotary compressor according to claim 3, is characterized in that, to be multiple and described multiple connection bump to be spaced apart from each other setting along the circumference of described main bearing described connection bump.
6. rotary compressor according to claim 5, is characterized in that, described multiple connection bump is arranged along the circumferential uniform intervals of described main bearing.
7. rotary compressor according to claim 2, is characterized in that, described threaded fastener is screw.
8. rotary compressor according to claim 1, is characterized in that, in described main bearing, described cylinder assembly and described supplementary bearing described at least one be fixedly attached to described housing.
9. rotary compressor according to claim 1, is characterized in that, described rotor is located in described stator rotationally.
10. the assembly method of a rotary compressor, it is characterized in that, described rotary compressor comprises housing, be located at the motor in described housing, compressing mechanism, and at least one threaded fastener, described motor comprises stators and rotators, described compressing mechanism comprises cylinder assembly, be located at main bearing and the supplementary bearing at the axial two ends of described cylinder assembly respectively, described main bearing is run through in one end, described cylinder assembly is with described supplementary bearing and the bent axle that is connected with described rotor of the other end, described threaded fastener is connected with described main bearing through after described stator, described assembly method comprises the following steps:
S1, described stator is placed on the described main bearing of described compressing mechanism;
S2, between described stator and described bent axle, place Pneumatic fixture to adjust the concentricity of described stator and described bent axle;
S3, by least one threaded fastener described through being connected with described main bearing after described stator; And
S4, exit described Pneumatic fixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510471112.XA CN105114314A (en) | 2015-08-03 | 2015-08-03 | Rotary compressor and assembly method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510471112.XA CN105114314A (en) | 2015-08-03 | 2015-08-03 | Rotary compressor and assembly method thereof |
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| CN201510471112.XA Pending CN105114314A (en) | 2015-08-03 | 2015-08-03 | Rotary compressor and assembly method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593879A (en) * | 2017-01-24 | 2017-04-26 | 广东美芝制冷设备有限公司 | Compressor |
| WO2019047477A1 (en) * | 2017-09-05 | 2019-03-14 | 上海海立电器有限公司 | Compressor and fabrication method therefor |
| CN111720327A (en) * | 2019-03-20 | 2020-09-29 | 瑞智精密股份有限公司 | Compressor device with motor locking compression pump |
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| JPH10318169A (en) * | 1997-05-21 | 1998-12-02 | Matsushita Refrig Co Ltd | Longitudinal rotary compressor |
| JP2000097183A (en) * | 1998-09-18 | 2000-04-04 | Daikin Ind Ltd | Rotary compressor |
| CN101713405A (en) * | 2009-08-22 | 2010-05-26 | 广东美芝制冷设备有限公司 | Internal gas guide mechanism for horizontal rotary compressor |
| CN102235359A (en) * | 2010-05-06 | 2011-11-09 | Lg电子株式会社 | Hermetic compressor and manufacturing method thereof |
| CN104481884A (en) * | 2014-12-05 | 2015-04-01 | 广东美芝制冷设备有限公司 | Refrigerating system and rotary compressor with axial flux motor |
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2015
- 2015-08-03 CN CN201510471112.XA patent/CN105114314A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10318169A (en) * | 1997-05-21 | 1998-12-02 | Matsushita Refrig Co Ltd | Longitudinal rotary compressor |
| JP2000097183A (en) * | 1998-09-18 | 2000-04-04 | Daikin Ind Ltd | Rotary compressor |
| CN101713405A (en) * | 2009-08-22 | 2010-05-26 | 广东美芝制冷设备有限公司 | Internal gas guide mechanism for horizontal rotary compressor |
| CN102235359A (en) * | 2010-05-06 | 2011-11-09 | Lg电子株式会社 | Hermetic compressor and manufacturing method thereof |
| CN104481884A (en) * | 2014-12-05 | 2015-04-01 | 广东美芝制冷设备有限公司 | Refrigerating system and rotary compressor with axial flux motor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593879A (en) * | 2017-01-24 | 2017-04-26 | 广东美芝制冷设备有限公司 | Compressor |
| WO2019047477A1 (en) * | 2017-09-05 | 2019-03-14 | 上海海立电器有限公司 | Compressor and fabrication method therefor |
| CN111720327A (en) * | 2019-03-20 | 2020-09-29 | 瑞智精密股份有限公司 | Compressor device with motor locking compression pump |
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Application publication date: 20151202 |