CN103216416A - Compressor and compressor assembling method - Google Patents
Compressor and compressor assembling method Download PDFInfo
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- CN103216416A CN103216416A CN2012100177939A CN201210017793A CN103216416A CN 103216416 A CN103216416 A CN 103216416A CN 2012100177939 A CN2012100177939 A CN 2012100177939A CN 201210017793 A CN201210017793 A CN 201210017793A CN 103216416 A CN103216416 A CN 103216416A
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Abstract
The invention discloses a compressor and a compressor assembling method. The compressor comprises a shell, a motor, a bearing block, a positioning component and a second bearing, wherein the motor is accommodated in the shell; the motor comprises a stator, a machine frame, a driving shaft and a rotor; a first bearing is arranged on the machine frame; the driving shaft is supported by the first bearing; the rotor is fixedly arranged on the driving shaft; the positioning component is used for positioning the second bearing and is connected with the bearing block; and the second bearing is connected with the positioning component and/or the bearing block and supports the driving shaft. The influence of the weight of the rotor and the driving shaft of the motor and/or the magnetic force between the stator and the rotor on the positioning of the bearing and the driving shaft can be prevented, and the positioning precision and the assembling efficiency are improved.
Description
Technical field
The present invention relates to a kind of compressor and compressor assembly method, be particularly useful for adopting the compressor of permanent magnet motor.
Background technique
Compressor can be used as the core component of chiller plant, and the Performance And Reliability of compressor has decisive influence for the working efficiency and the stability of chiller plant.And the Performance And Reliability of compressor depends on the precision of its assembling to a great extent.At present, compressor commonly used has motor, and motor comprises stator, live axle and is fixed on rotor on the live axle.And live axle can rotate it around the spin axis of live axle by two bearings.In assembly process, must carry out positioned coaxial to these two bearings, otherwise compressor is difficult to the Performance And Reliability that obtains to expect.
In the prior art, fix a bearing usually earlier, then will locate with respect to last bearing after another Bearing Installation is to live axle.Because last bearing is fixed, so, can only be to the coaxial positioning of two bearings by back one bearing adjustment is realized.Yet, in this case, rotor has been installed on the live axle, thereby adjustment back one bearing need overcome the gravity of live axle and rotor and/or the magnetic force between stator and the rotor carries out.So need very big power to realize the same axial adjustment of these two bearings.This has caused location difficulty, and causes location efficiency low and occur positioning error easily.
For this reason, need provide a kind of compressor and assembly method thereof that bearing and live axle are positioned that can make things convenient for exactly.
Summary of the invention
One of purpose of the present invention provides the weight of a kind of rotor that can eliminate motor and live axle and/or the magnetic force between stator and the rotor compressor for the interference of the location of bearing and live axle.
The present invention also aims to provide the weight of a kind of rotor that can eliminate motor and live axle and/or the magnetic force between stator and the rotor compressor assembly method for the interference of the location of bearing and live axle.
In order to realize the foregoing invention purpose, technological scheme of the present invention realizes in the following manner:
According to an aspect of the present invention, provide a kind of compressor, comprising:
Shell, the two ends of described shell are respectively by cap and base sealing;
Motor, described motor are contained in the described shell, and described motor comprises:
Stator, described stator has fixing position with respect to described shell,
Frame, described frame are connected with described shell and clutch shaft bearing are installed;
Live axle, an end of described live axle is supported by described clutch shaft bearing; With
Rotor, described rotor is fixed on the described live axle, and can rotate with respect to described stator;
Bearing support, described bearing support are fixedlyed connected with described shell or are integrally formed;
Second bearing, the described live axle of described second bearings; And
Align member, described align member are used for second bearing is positioned and is connected with described bearing support, and described second bearing is connected with described align member and/or described bearing support.
Further, described align member can be that benchmark positions with described clutch shaft bearing, and it is that the location of benchmark can be independent of described live axle and described second bearing carries out with described clutch shaft bearing.
Further, described align member can have and is used for the positioning surface that matches with second bearing.
Again further, described align member can have positioning hole, and described positioning surface can be the internal surface of described positioning hole, and its outer surface with described second bearing matches.
Again further, the aperture of described positioning hole can be greater than the diameter of live axle.
Again further, the internal surface of described positioning hole can be provided with the chamfering that is used to guide the insertion of second bearing, and the outer surface of second bearing can have chamfering.
Again further, the internal surface of described positioning hole can be periphery or conical surface.
Particularly, described align member can be a positioning ring.
Particularly, described clutch shaft bearing and described second bearing can be coaxial.
Particularly, described second bearing can be thrust bearing or comprise thrust bearing, and described thrust bearing is vertical with the spin axis of described live axle.
Particularly, can be provided with flange on the periphery of described stator, described flange links to each other with the inwall of described shell stator is fixed in described shell.
Particularly, described compressor can be the permanent magnet motor refrigeration compressor.
According to a further aspect in the invention, provide a kind of compressor assembly method, comprise step:
(a) provide frame, stator, live axle and the rotor of shell, bearing support, align member, second bearing and motor;
(b) stator and the frame with motor is fixedly mounted in the shell, in the described frame clutch shaft bearing is installed;
(c) end with live axle is assembled in the described clutch shaft bearing, and rotor is fixed on the live axle;
(d) bearing support is fixedlyed connected with shell; With
(e) be that benchmark positions described align member and the align member of having good positioning is fixedlyed connected with described bearing support with the clutch shaft bearing,
(f) be that benchmark positions described second bearing and described live axle with described align member, so that the clutch shaft bearing and second coaxial bearing, and second bearing that will have good positioning is fixedlyed connected with described align member and/or described bearing support.
Further, described align member can have and is used for the positioning surface that matches with second bearing.
Further, described align member can have positioning hole, and described positioning surface can be the internal surface of described positioning hole, and it can match with the outer surface of described second bearing.
Again further, the aperture of described positioning hole is greater than the diameter of live axle, and in described step (e), elder generation passes described live axle again from described positioning hole described align member is positioned; In described step (f), described second bearing is inserted between the positioning hole and live axle of described align member, so that the outer surface of described second bearing matches with the internal surface of described positioning hole, the internal surface of described second bearing matches with the outer surface of described live axle.
Again further, the internal surface of described positioning hole can be provided with the chamfering that is used to guide the insertion of second bearing, and the outer surface of second bearing has chamfering.
Particularly, described align member can be a positioning ring.
Particularly, described second bearing can be that thrust bearing maybe can comprise thrust bearing, and in described step (f), described thrust bearing is adjusted to vertical with the spin axis of described live axle.
Particularly, in described step (e), the location of described align member can be realized by means of location measurer and positioning fixture.
Particularly, described method can also comprise: the two ends of described shell are sealed respectively.
Thereby at least one aspect in the technique scheme of the present invention can by set align member with the weight of the operation of coaxial positioning being separated the rotor of having avoided motor and live axle with the operation of mobile live axle and the magnetic force between stator and the rotor for the location influence of bearing and live axle, improved Location accuracy and efficiency of assembling.
Description of drawings
Fig. 1 illustrates the structural representation according to the compressor of one embodiment of the invention;
The schematically illustrated pilot process that assembles compressor according to the compressor assembly method of one embodiment of the invention of Fig. 2;
Fig. 3 illustrates the schematic representation that align member is positioned according in the compressor assembly method of one embodiment of the invention;
Fig. 4 illustrates the schematic representation according to the mounting point of second bearing in the compressor of one embodiment of the invention and align member; With
The plan view and the sectional view of the schematically illustrated align member according to one embodiment of the invention of Fig. 5 a and Fig. 5 b.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, technological scheme of the present invention is described in further detail.In specification, same or analogous drawing reference numeral is represented same or analogous parts.Following explanation to embodiment of the present invention is intended to present general inventive concept of the present invention is made an explanation with reference to accompanying drawing, and not should be understood to a kind of restriction of the present invention.
Fig. 1 schematically shows a kind of compressor 100 according to an embodiment of the invention.Compressor 100 comprises shell 3, motor, bearing support 7, align member 11 and second bearing 12.The two ends of shell 3 are respectively by cap 1 and base 8 sealings.So the inside of shell 3 forms the chamber of a sealing.Motor is contained in the chamber of this sealing.Described motor can comprise stator 5, frame 16, live axle 10 and rotor 4.Stator 5 has fixing position with respect to shell 3, and for example, stator 5 can be fixed in the inwall of shell 3.In one embodiment, stator 5 can be provided with flange 9 on periphery, and is fixed on the inwall of shell 3 by described flange 9.Frame 16 is connected (in the example depicted in fig. 1, frame 16 is connected in the top of shell 3) with shell 3, be used for stator 5, rotor 4, live axle 10 are supported.Frame 16 is equipped with clutch shaft bearing 2, and an end of live axle 10 is inserted in the clutch shaft bearing 2, is supported by clutch shaft bearing 2.Rotor 4 is fixed on the live axle 10, and can rotate with respect to stator 5.In the example depicted in fig. 1, rotor 4 is surrounded by stator 5.Bearing support 7 can be fixedlyed connected with shell 3 or be integrally formed.
Align member 11 is connected with bearing support 7, and second bearing 12 is connected with align member 11 and/or bearing support 7, and supporting driving shaft 10.In example as shown in Figure 1, bearing support 7 is arranged in the side of shell 3 near base 8, fixedlys connected with the inwall of shell 3.Bearing support 7 can have axis hole or opening, passes from bearing support 7 to allow live axle 10.Bearing support 7 is used to carry second bearing 12 to satisfy the requirement of supporting driving shaft 10.Align member 11 is used for second bearing 12 is positioned.Align member 11 can be can be independent of live axle 10 and second bearing 12 is the member that benchmark positions with clutch shaft bearing 2.For example, align member 11 is and live axle 10 and the discrete member of second bearing 12.Second bearing 12 can be connected to align member 11 and/or bearing support 7 again after align member 11 is fixedly attached to bearing support 7.This connection for example can realize by means of related domain Placement commonly used such as be threaded.The location of align member 11 can relate to any translation freedoms or any rotational freedom in the three dimensional space, also can relate to the combination of these translation freedoms and rotational freedom.
In an example, align member 11 can have positioning hole 112, and described positioning surface 111 is internal surfaces of described positioning hole 112, and it can match with the outer surface of second bearing 12.In this case, position and with after bearing support 7 is connected at align member 11, second bearing 12 can be inserted in the positioning hole 112, so that the outer surface of second bearing 12 matches with the internal surface of positioning hole 112, and the internal surface of second bearing 12 matches with live axle 10, to keep correct position.The internal surface of described positioning hole 112 can be a periphery.And, also the internal surface of described positioning hole 112 can be arranged to conical surface for the ease of guiding the insertion of second bearing 12.
In one embodiment, the aperture of positioning hole 112 can be greater than the diameter of live axle 10.This makes and carries out the position when adjusting at positioning hole 112, its with live axle 10 between have enough gaps, and can not make the position adjustment of positioning hole 112 be activated an interference of spools 10.
In one embodiment, as shown in Figure 3, the internal surface of positioning hole 112 can be provided with the chamfering that is used to guide 12 insertions of second bearing.Correspondingly, the outer surface of second bearing 12 also can have chamfering, so that second bearing 12 is inserted into correct position.
In one embodiment, second bearing 12 can be thrust bearing or comprise thrust bearing.Described thrust bearing provides axially support for live axle 10, and the axial position of restriction live axle 10.In this case, need to keep thrust bearing vertical with the spin axis of live axle 10.
Next the embodiment of the assembly method of compressor 100 is described.Frame 16, stator 5, live axle 10 and the rotor 4 of shell 3, bearing support 7, align member 11 and second bearing 12 and motor at first, are provided.The stator 5 and the frame 16 of motor are fixedly mounted in the shell 3, clutch shaft bearing 2 is installed in the frame 16.For example, can stator 5 be fixed to shell 3 by the inwall that the flange on the stator 59 is connected to shell 3.Afterwards, an end of live axle 10 is assembled in the described clutch shaft bearing 2, and rotor 4 is fixed on the live axle 10.Then, bearing support 7 is fixedlyed connected with shell 3.
The schematic representation of the compressor part of the above installation step assembling of process as shown in Figure 2.The arranged direction of the shell 3 of compressor part shown in Figure 2 is opposite with the arranged direction of structure shown in Figure 1.Next, need the assembling and positioning member 11 and second bearing 12.The align member 11 and second bearing 12 are used to guarantee the tram of live axle 10.In compressor 100, the clutch shaft bearing 2 and second bearing 12 that are used for supporting driving shaft 10 need be arranged to coaxial.Thereby prevent the deflection of live axle 10.
Particularly, be that benchmark positions align member 11 at first with clutch shaft bearing 2.The location of align member 11 can be carried out by means of orientation tool 13, and this orientation tool 13 for example can be location measurer and positioning fixture.After align member 11 is finished the location, the align member 11 of having good positioning is fixedlyed connected with bearing support 7.
Afterwards, be that benchmark positions with live axle 10 second bearing 12 with align member 11, so that the clutch shaft bearing 2 and second bearing 12 are coaxial, and second bearing 12 that will have good positioning is fixedlyed connected with align member 11 and/or bearing support 7.
To have positioning hole 112 and be example as the situation of the positioning surface 111 that matches with second bearing 12 with align member 11 below, be described in more detail for the assembling of the align member 11 and second bearing 12 with the internal surface of positioning hole 112.
Earlier live axle 10 is passed from positioning hole 112, adjust the position of align member 11, for example can be adjusted to clutch shaft bearing 2 internal surface of the positioning hole 112 of align member 11 coaxial.For example can be by realizing to the location of align member 11 such as orientation tools such as location measurer, positioning fixtures, or even can use the elasticity that is distributed in the screw on align member 11 different parts to adjust.Position adjustment to align member 11 can comprise adjustment of translation position and/or oblique position adjustment.Those skilled in the art also can adopt the other techniques well known in the art means to realize the location of align member 11.After align member 11 is positioned suitable position, align member 11 is fixed on the bearing support 7.
Afterwards, second bearing 12 is inserted between the positioning hole 112 and live axle 10 of align member 11, so that the outer surface of second bearing 12 matches with the internal surface of positioning hole 112, the internal surface of second bearing 12 matches with the outer surface of live axle 10.Along with the insertion of second bearing 12, second bearing 12 promotes live axle 10 and overcomes the magnetic force between rotor 4 and the stator 5 so that live axle 10 is positioned at suitable position.Because it is coaxial that the internal surface of positioning hole 112 has been adjusted to clutch shaft bearing 2, so second bearing 12 of Pei Heing also is positioned the position coaxial with clutch shaft bearing 2 under the guiding of positioning hole 112 with it.
The diameter of positioning hole 112 can be greater than the diameter of live axle 10 corresponding sites, carries out the position when adjusting thereby make at positioning hole 112, its with live axle 10 between have enough gaps, and can not make the position adjustment of positioning hole 112 be activated an interference of spools 10.And in the prior art, align member 11 is not set, but utilize positioning equipment directly second bearing 12 that is sleeved on the live axle 10 to be positioned.Thereby, positioning the rotor 4 that can be subjected to being positioned at when adjusting on the live axle 10 interference, and be difficult to accurately locate with the magnetic force of stator 5.In the application's embodiment, the fitting operation of the positioning action and second bearing 12 is separated, in the positioning action process that align member 11 is carried out, avoided the influence of bigger perturbed force, and the simplicity that second bearing 12 has also improved operation has been installed under the guiding of align member 11.
In one embodiment, the internal surface of positioning hole 112 is provided with chamfering, can make the more convenient to operate and accurate of guiding second bearing 12 insertions.Similarly, also chamfering can be set on the outer surface of second bearing 12.
At second bearing 12 is under thrust bearing or the situation that comprises thrust bearing, and the positioning surface 111 of align member 11 is being adjusted to and also is being adjusted to vertical with the spin axis of live axle 10 when clutch shaft bearing 2 is coaxial.
Fig. 5 a and Fig. 5 b show a kind of example of align member 11, and the center of this align member 11 has positioning hole 112.The inner surface edge place of positioning hole 112 is provided with the chamfered section 1121 that is used to guide 12 insertions of second bearing.The chamfering size α of described chamfered section 1121 can come to determine as required, for example between 5 ° to 15 °, as 10 °.Fig. 5 a is a plan view, and Fig. 5 b is the sectional view that the cutting line AA in Fig. 5 a intercepts.In the embodiment shown in Fig. 5 a and Fig. 5 b, this align member 11 can also be provided with fixed hole 113,114 and 115, is used for align member 11 is fixed (for example by means of bolt or screw).Described fixed hole 113,114 can have different diameters with 115, can be through hole, also can be screw.There is shown three groups of 9 fixed holes, go for multiple fixing needs, but this not necessarily.Fixing getting final product realized in arbitrary hole that the user can select to keep wherein.
In the above-mentioned compressor assembly method, the closed at both ends of shell 3 for example can also be sealed by cap 1 and base 8 respectively.
In an embodiment of the present invention, described compressor can for example be the permanent magnet motor refrigeration compressor.
Though describe the present invention in conjunction with the accompanying drawings, disclosed embodiment is intended to the preferred embodiment for the present invention is carried out exemplary illustration in the accompanying drawing, and can not be interpreted as a kind of restriction of the present invention.
Though some embodiments of general plotting of the present invention are shown and illustrate, those skilled in the art will appreciate that, under the situation of principle that does not deviate from this present general inventive concept and spirit, can make a change these embodiments, scope of the present invention limits with claim and their equivalent.
Claims (21)
1. compressor comprises:
Shell, the two ends of described shell are respectively by cap and base sealing;
Motor, described motor are contained in the described shell, and described motor comprises:
Stator, described stator has fixing position with respect to described shell,
Frame, described frame are connected with described shell and clutch shaft bearing are installed;
Live axle, an end of described live axle is supported by described clutch shaft bearing; With
Rotor, described rotor is fixed on the described live axle, and can rotate with respect to described stator;
Bearing support, described bearing support are fixedlyed connected with described shell or are integrally formed;
Second bearing, the described live axle of described second bearings; And
Align member, described align member are used for second bearing is positioned and is connected with described bearing support, and described second bearing is connected with described align member and/or described bearing support.
2. compressor according to claim 1, wherein, described align member can be that benchmark positions with described clutch shaft bearing, and it is that the location of benchmark can be independent of described live axle and described second bearing carries out with described clutch shaft bearing.
3. compressor according to claim 2, wherein, described align member has and is used for the positioning surface that matches with second bearing.
4. compressor according to claim 3, wherein, described align member has positioning hole, and described positioning surface is the internal surface of described positioning hole, and its outer surface with described second bearing matches.
5. compressor according to claim 4, wherein, the aperture of described positioning hole is greater than the diameter of live axle.
6. compressor according to claim 4, wherein, the internal surface of described positioning hole is provided with the chamfering that is used to guide the insertion of second bearing, and the outer surface of second bearing has chamfering.
7. compressor according to claim 4, wherein, the internal surface of described positioning hole is periphery or conical surface.
8. according to each described compressor among the claim 1-7, wherein, described align member is a positioning ring.
9. according to each described compressor among the claim 1-7, wherein, described clutch shaft bearing and described second bearing are coaxial.
10. according to each described compressor among the claim 1-7, wherein, described second bearing is thrust bearing or comprises thrust bearing, and described thrust bearing is vertical with the spin axis of described live axle.
11. according to each described compressor among the claim 1-7, wherein, the periphery of described stator is provided with flange, described flange links to each other with the inwall of described shell stator is fixed in described shell.
12. according to each described compressor among the claim 1-7, wherein, described compressor is the permanent magnet motor refrigeration compressor.
13. a compressor assembly method comprises step:
(a) provide frame, stator, live axle and the rotor of shell, bearing support, align member, second bearing and motor;
(b) stator and the frame with motor is fixedly mounted in the shell, in the described frame clutch shaft bearing is installed;
(c) end with live axle is assembled in the described clutch shaft bearing, and rotor is fixed on the live axle;
(d) bearing support is fixedlyed connected with shell;
(e) be that benchmark positions described align member and the align member of having good positioning is fixedlyed connected with described bearing support with the clutch shaft bearing; With
(f) be that benchmark positions described second bearing and described live axle with described align member, so that the clutch shaft bearing and second coaxial bearing, and second bearing that will have good positioning is fixedlyed connected with described align member and/or described bearing support.
14. compressor assembly method according to claim 13, wherein, described align member has and is used for the positioning surface that matches with second bearing.
15. compressor assembly method according to claim 14, wherein, described align member has positioning hole, and described positioning surface is the internal surface of described positioning hole, and it can match with the outer surface of described second bearing.
16. compressor assembly method according to claim 15, wherein, the aperture of described positioning hole is greater than the diameter of live axle, and in described step (e), elder generation passes described live axle again from described positioning hole described align member is positioned; In described step (f), described second bearing is inserted between the positioning hole and live axle of described align member, so that the outer surface of described second bearing matches with the internal surface of described positioning hole, the internal surface of described second bearing matches with the outer surface of described live axle.
17. compressor assembly method according to claim 16, wherein, the internal surface of described positioning hole is provided with the chamfering that is used to guide the insertion of second bearing, and the outer surface of second bearing has chamfering.
18. according to each described compressor assembly method among the claim 13-17, wherein, described align member is a positioning ring.
19. according to each described compressor assembly method among the claim 13-17, wherein, described second bearing is thrust bearing or comprises thrust bearing, and in described step (f), described thrust bearing is adjusted to vertical with the spin axis of described live axle.
20. according to each described compressor assembly method among the claim 13-17, wherein, in described step (e), realize by means of location measurer and positioning fixture the location of described align member.
21. according to each described compressor assembly method among the claim 13-17, wherein, described method also comprises: the two ends of described shell are sealed respectively.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210017793.9A CN103216416B (en) | 2012-01-19 | 2012-01-19 | compressor and compressor assembly method |
| DE102013200597.0A DE102013200597B4 (en) | 2012-01-19 | 2013-01-16 | Compressor and method of assembling such a compressor |
| US13/742,417 US20130189133A1 (en) | 2012-01-19 | 2013-01-16 | Compressor and method of assembling compressor |
| US15/153,212 US10495087B2 (en) | 2012-01-19 | 2016-05-12 | Compressor and method of assembling compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210017793.9A CN103216416B (en) | 2012-01-19 | 2012-01-19 | compressor and compressor assembly method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103216416A true CN103216416A (en) | 2013-07-24 |
| CN103216416B CN103216416B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210017793.9A Expired - Fee Related CN103216416B (en) | 2012-01-19 | 2012-01-19 | compressor and compressor assembly method |
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| Country | Link |
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| CN (1) | CN103216416B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109773362A (en) * | 2019-03-28 | 2019-05-21 | 昆山华恒焊接股份有限公司 | Compressor welding system |
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|---|---|---|---|---|
| JP2001355582A (en) * | 2000-06-14 | 2001-12-26 | Matsushita Electric Ind Co Ltd | Hermetically sealed motor-driven compressor and method for assembling it |
| US20090185935A1 (en) * | 2008-01-16 | 2009-07-23 | Seibel Stephen M | Scroll machine |
| CN201412344Y (en) * | 2009-05-20 | 2010-02-24 | 浙江鸿友压缩机制造有限公司 | Positioning and connecting device for fixed blade compressor |
| CN101688533A (en) * | 2007-04-25 | 2010-03-31 | 丹佛斯商业压缩机公司 | Method of assembling a refrigerating compressor |
| CN202417872U (en) * | 2012-01-19 | 2012-09-05 | 丹佛斯（天津）有限公司 | Compressor |
-
2012
- 2012-01-19 CN CN201210017793.9A patent/CN103216416B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001355582A (en) * | 2000-06-14 | 2001-12-26 | Matsushita Electric Ind Co Ltd | Hermetically sealed motor-driven compressor and method for assembling it |
| CN101688533A (en) * | 2007-04-25 | 2010-03-31 | 丹佛斯商业压缩机公司 | Method of assembling a refrigerating compressor |
| US20090185935A1 (en) * | 2008-01-16 | 2009-07-23 | Seibel Stephen M | Scroll machine |
| CN201412344Y (en) * | 2009-05-20 | 2010-02-24 | 浙江鸿友压缩机制造有限公司 | Positioning and connecting device for fixed blade compressor |
| CN202417872U (en) * | 2012-01-19 | 2012-09-05 | 丹佛斯（天津）有限公司 | Compressor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109773362A (en) * | 2019-03-28 | 2019-05-21 | 昆山华恒焊接股份有限公司 | Compressor welding system |
| CN109773362B (en) * | 2019-03-28 | 2023-09-26 | 昆山华恒焊接股份有限公司 | Compressor welding system |
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| Publication number | Publication date |
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| CN103216416B (en) | 2016-04-13 |
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