CN1310877A - A process for mounting an electric motor - Google Patents
A process for mounting an electric motor Download PDFInfo
- Publication number
- CN1310877A CN1310877A CN 99808882 CN99808882A CN1310877A CN 1310877 A CN1310877 A CN 1310877A CN 99808882 CN99808882 CN 99808882 CN 99808882 A CN99808882 A CN 99808882A CN 1310877 A CN1310877 A CN 1310877A
- Authority
- CN
- China
- Prior art keywords
- rest pad
- stator
- rotating shaft
- rotor
- guiding device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/16—Centering rotors within the stator; Balancing rotors
Abstract
A process for mounting an electric motor, comprising the steps of: a) mounting a guide means (80) to one of the parts defined by a supporting block (10) having a bearing (13) and by a stator (60) of an electric motor which is affixed inside a motor housing (70) affixed to the supporting block (10); b) slidingly fitting the other of said parts into the guide means (80), in order to make the axes of the stator (60) and the bearing (13) of the supporting block (10) coincide with each other, said displacement being limited by seating at least an end portion (71) of the motor housing (70) against the supporting block (10); c) affixing, without applying tension, the motor housing (70) to the supporting block (10) in the seating position; and d) removing the guide means (80) from the part to which it has been mounted.
Description
Invention field
The present invention relates to be used for to install the rotor of the employed the sort of motor of hermetic compressor of refrigeration system and the method for stator, described rotor is carried by rest pad, and described stator then has been installed in the electronics outer cover.
Background of invention
In the well-known structures of reciprocating hermetic compressor, be equipped with in its shell: a rest pad, this rest pad are journaled in the rotating shaft of moving by a connecting rod; One piston moves back and forth in its cylinder body on being arranged at a rest pad part; The rotor of motor is being carried in described rotating shaft in the mode that does not have end play.
Described motor has a stator, it is installed on compressor case, and, the rotor that above-mentioned rotating shaft is carried is arranged on the inboard of this stator in homocentric mode, certain radial clearance is arranged between above-mentioned rotor and the stator, and this gap is calculated as can avoid contacting between rotor and the stator in motor operation course.
The rotating shaft of described connecting rod has an annular flange flange that is positioned on the cod, described cod be arranged on rest pad on the mutually homocentric mode of through hole be limited on this rest pad, described rotating shaft is inserted in the aforementioned through-hole and radially is journaled in this through hole.
In this structure of reciprocating compressor, can rest pad be fixed in stator by the hold-down screw that acts on rest pad and stator.With regard to this fixing, described rest pad has fixing hole, these fixing holes are located to be parallel to the aforementioned mode that is used to install the through hole of above-mentioned rotating shaft, each fixing hole all be arranged on that the corresponding mounting hole on the stator aligns and size becomes with the size of the hold-down screw that will use.
This fixed system can cause having more parts to be return from hookup wire and handle again, on having eliminated parts, after the detected problem, needs these parts are taken apart and reinstalled, thereby, can cause the variation of parts.
By screwing one of problem that rotor is installed on rest pad is need suitably smooth stator and the contact-making surface of cylinder body, do not line up with the axis of avoiding stator and the axis of rotating shaft, thereby said not lining up can make that rotor and stator are eccentric mutually can to make contact between the two eccentric mutually in motor operation course.For the contact-making surface of smooth rest pad suitably, must do accurate machine work to rest pad with cutting tools.
In order to make that installing hole is set can not produce remarkable influence to the metallic conduction quality of stator on stator, calculate the quantity of the lamination that constitutes described stator and the radial thickness and the size of each lamination according to the difference of the quantity of the required screw of each model compressor.
Another problem of said fixing system relates to the spiral tension force that causes because of the moment of torsion that acts on each screw when extruding the parts that rest pad and stator limited may occur.Because described stator is to be made of stacked lamination,, thereby cause to change the such problem of above-mentioned end play so Tension Difference also may change the evenness of stator.And change in torque can cause the such problem of rotor-stator collision and can absorb screwing tension force.
Summary of the invention
An object of the present invention is to provide a kind of such method, this method be used for the lamination duplexer that does not need accurately to cut rest pad and do not make rest pad and stator stand fixing tension force and the situation about not lining up that caused because of fixing above-mentioned parts under motor is installed and the rotor of motor and the axis of stator is accurately alignd.
Another object of the present invention provides a kind of aforesaid installation method, and this method does not need to change the lamination duplexer of stator, for example increases size or increasing radial clearance when the rotor of motor or stator are removed material with the dismounting of material.
Another purpose of the present invention provides the installation method with above-mentioned advantage, the adjacently situated surfaces of each parts that it does not need smooth rest pad and stator and is limited.
Can reach above-mentioned and other purpose by a kind of method that is used to install motor, described motor comprises: a stator, and it is fixed in the motor outer cover, and described motor outer cover then is fixed in a rest pad; And, a rotor, it is fixed on around the rotating shaft, and described rotating shaft axially and directly upwards all is being limited on the bearing, and this bearing is connected in above-mentioned rest pad; Described method comprises the following steps: that a-is installed in the parts that described stator and rest pad limit one with a guiding device; B-makes other parts in the above-mentioned parts advance aforementioned guiding device with the mode assembly that slides, so that the axis of the bearing of the axis of stator and rest pad is coincided each other, is posted by rest pad by an end that makes the motor outer cover at least and limits said displacement; C-covers on the above-mentioned position that reclines outside with motor and is fixed in rest pad under the situation that does not apply tension force; And d-removes guiding device from the parts that guiding device is installed.
The accompanying drawing summary
Following with reference to description of drawings the present invention, in the accompanying drawings:
Fig. 1 is shown schematically in the reciprocating compressor of prior art in the mode of vertical sectional side elevation, and it makes the stator of its motor be fixed in rest pad by a plurality of hold-down screws;
Fig. 2 is shown schematically in reciprocating compressor of the present invention in the mode of vertical sectional side elevation, and it makes the stator of its motor be fixed in rest pad;
Fig. 3 is shown schematically in the rest pad and the stator of motor of the present invention in the mode of decomposition diagram; And
Fig. 4 is shown schematically in reciprocating compressor of the present invention in the mode of perspective view, and it makes its rest pad be fixed in the motor outer cover.
Explanation to illustrative examples
Method explanation the present invention of motor below just is installed, described motor for example is an employed the sort of motor in all hermetic compressors that has as shown in Figure 1 and so on a vertical rotation axis, described compressor comprises can 1, it defines lubricating oil sump 2 at bottom place and is contained in rest pad 10 in the sealing shell, rest pad 10 has a cylinder body 11 and comprises the bearing 13 homocentric with through hole 12 at the middle part in the end, bearing 13 in the axial direction and radially upper support rotating shaft 20, rotating shaft 20 is vertical and an eccentric 20 is arranged at top place, it is articulated in piston 40 by a connecting rod 30, and piston 40 moves back and forth with being rotated in the cylinder body 11 of rotating shaft 20.
The top of rotating shaft 20 is equipped with a flange part 22, and it is positioned on the bearing 13 of rest pad 22, and the bottom of rotating shaft 20 is equipped with an oil pump 23, and it can make oil enter relative motion and need lubricated parts from oil groove 2.The rotor 50 of the motor of compressor is also being carried in rotating shaft 20 between flange part 22 and oil pump 23, rotor 50 is fixed in rotating shaft 20 in the mode of no radial clearance.
In this prior art structure, rest pad 10 is fixed in the stator 60 of motor, this stator is the form of the duplexer that is made of alignment and stacked lamination, therefore, rotor 50 by rotating shaft 20 carryings is positioned at stator 60 and mutually homocentric with stator 60, thus the smallest radial gap that relative stator 60 has certain calculated in advance to come out.
In order to carry out this prior art fixing (Fig. 1), rest pad 10 is equipped with fixing hole 14, each fixing hole all receives a corresponding hold-down screw 15, this hold-down screw is advanced to be arranged on by assembly in the corresponding mounting hole on the lamination duplexer of stator 60, so that stator 60 is fixed in rest pad 10.
This structure has above-mentioned shortcoming.
According to the present invention, rest pad 10 can be installed on the stator 60 of motor by the following installation method that will be illustrated, wherein, rest pad 10 links to each other with motor outer cover 70, motor outer cover 70 is the form of main body in a tubular form for example, and the end of this tubular body is open and stator 60 live motor in internal fixation.
For stator 60 is installed in the motor outer cover 10, in advance to the heating of motor outer cover, therefore, motor covers on outward when expanding can present the diameter that is enough to receive stator 60.When thermal contraction, the diameter of motor outer cover 70 can reduce, thereby surrounds stator 60 and fix stator 60 in the mode of no radial clearance.
According to the present invention, guiding device 80 is installed in the parts that stator 60 and rest pad 10 limited one, guiding device 80 can be to the slip assembly channeling conduct of other parts in the described parts, so that the axis of the bearing 13 of the axis of stator 60 and rest pad 10 is coincided, described guiding device 80 also can determine between stator 60 and rotor 50 to form minimum radial distance, and this distance can cause having the predetermined even air gap of the whole axial circumferential extension portion of running through rotor 50.Be posted by rest pad 10 by the end 71 that makes motor outer cover 70 at least, can limit the slide relative between rest pad 10 and the stator 60.After having realized fixing between rest pad and the motor outer cover, pull down guiding device 80 from the parts that guiding device 80 is installed.
According to the present invention, can be under the situation that does not apply any tension force for example by parts are bonded each other or weld realize said fixing.
In the embodiment shown in Fig. 2-4, motor outer cover 70 is equipped with axial protuberance for example to be equipped with three axial protuberances from one of its end, each protuberance all defines wants assembly to enter end 71 in the corresponding reception groove 16, receive groove 16 and be arranged on the installed surface 17 of rest pad 10, the degree of depth is according to the different of restriction of the predetermined relative approximation between rest pad 10 and the motor outer cover 70 are calculated.According to this explanation, motor outer cover 70 is externally carrying the mounting flange 71 that L shaped section is for example arranged, and the motor outer cover of fixing stator 60 is installed in the capsul 1 of compressor by above-mentioned mounting flange.
In a kind of optimal scheme, at least one in the parts that end 71 and reception groove 16 are limited receiving a certain amount of adhesive before the assembly mutually, and these bonding cuing open are afterwards solidified, so that fix rest pad 10 and motor outer cover 70.
In realizing a kind of method of the present invention, when motor is installed, receiving and fixed rotor 50 and before rest pad 10 is installed on motor outer cover 70, rotating shaft 20 reeves are being arranged in the through hole 12 on the rest pad 10, be positioned at until its rim lip 22 on the bearing 13 of rest pad 10.In this structure, guiding device 80 have annular shape and be placed on stator 60 and rotor 50 between so that limit between the two radial clearance.
According to shown in embodiment, guiding device 80 has the retainer 81 of a cylindrical lining form, it is at least partially disposed on the outside of stator 60 in the process of assembling motor, axial blade 82 protrudes in above-mentioned retainer, and the outer surface of axial blade 82 relative cylindrical bush for example is arranged on the circumference equi-spaced apart each other and has and will be arranged on the corresponding thickness of air gap between rotor 50 and the stator 60.
Guiding device 80 in this scheme can be installed on stator 60 promptly by following mode: can receive the slip assembly to the rotor 50 that is installed on rotating shaft 10, rotating shaft 10 then is installed in rest pad 10, perhaps, guiding device 80 can be installed to around the rotor 50 that has been fixed in rotating shaft 10, and rotating shaft 10 then is installed in rest pad 10.
In another possible scheme, guiding device 80 has the shape of cylindrical bush, and its size can occupy the whole radial space between stator 60 and the rotating shaft 20.In this structure, guiding device 80 can be installed on stator 60, so that receive the slip assembly to the rotating shaft 30 that is installed in rest pad 10, perhaps, guiding device 80 can be installed to around the rotating shaft 10 that then is installed in rest pad 10, so that advance stator 60 with the sliding type assembly.
In this structural alternative, after the parts that guiding device 80 was installed are already pulled down guiding device 80, in the beginning step of electric motor mounting method of the present invention, before rest pad 10 is positioned over the step of motor outer cover 70, rotor 50 is fixed on pivot already installs to around the rotating shaft 20 on the rest pad 10.
In another kind of structure of the present invention, guiding device 80 is the form of lining, the size of this lining can occupy the whole inner radial space of stator, this space has the corresponding radius of air gap sum with the radial thickness of rotor 50 and rotating shaft 20, and described lining is arranged between the bearing 13 of stator 60 and rest pad 10.In this structure, guiding device 80 can be installed on stator 60, so that can be with the mode assembly that slides to the bearing 13 of rest pad 10 in, perhaps, guiding device 80 be installed on above-mentioned bearing, so that reception is to the slip assembly of the stator 60 of rest pad 10.In this scheme, after the parts that guiding device 80 was installed are already pulled down guiding device 80, rotating shaft 20 is installed on the bearing 13 of rest pad 10, then, bearing 20 receives rotor 50, rotor 50 be fixed on rotating shaft 20 longitudinal extension part a part around, rotating shaft then has been journaled on the rest pad 10.
Claims (16)
1, a kind of method that is used to install motor, described motor comprises: a stator (60), it is fixed in the motor outer cover (70), and described motor outer cover then is fixed in a rest pad (10); And, a rotor (50), it is fixed on a rotating shaft (20) on every side, and described rotating shaft axially and directly upwards all is being limited on the bearing (13), and this bearing is connected in above-mentioned rest pad (10); Described method is characterised in that, this method comprises the following steps: that a-is installed in the parts that described stator (60) and rest pad (10) limited one with a guiding device (80); B-makes other parts in the above-mentioned parts advance aforementioned guiding device (80) with the mode assembly that slides, so that the axis of the bearing (13) of the axis of stator (60) and rest pad (10) is coincided each other, is posted by rest pad (10) by an end (71) that makes motor outer cover (70) at least and limits said displacement; C-is fixed in rest pad (10) with motor outer cover (70) in the above-mentioned position that reclines under the situation that does not apply tension force; And d-removes guiding device (80) from the parts that guiding device (80) is installed.
2, method as claimed in claim 1 is characterized in that, initial step before that the method comprising the steps of " a ": the bearing (13) that rotating shaft (20) is installed on rest pad (10); And, rotor (50) is fixed to rotating shaft (20) that oneself industry is installed in rest pad (10) on every side.
3, method as claimed in claim 2 is characterized in that, described guiding device (80) be the annular and be placed between stator (60) and the rotor (50), so that limit the two radial clearance.
4, method as claimed in claim 3 is characterized in that, described guiding device (80) is installed on stator (60), so that receive the slip assembly to rotor (50), rotor (50) is installed on the rotating shaft (20) that is journaled on the rest pad (10).
5, method as claimed in claim 4 is characterized in that, with described guiding device (80) be installed to be fixed in rotating shaft (20) already rotor (50) on every side, rotating shaft (20) then is installed in rest pad (10).
6, method as claimed in claim 1 is characterized in that, described guiding device (80) is the lining form, it comprise rotor (50) and be placed on stator (60) and rotating shaft (20) between so that limit radial clearance between stator (60) and the rotor (50).
7, method as claimed in claim 6 is characterized in that, step afterwards that the method comprising the steps of " d ": rotor (50) is installed on rotating shaft (20), and rotating shaft (20) then has been journaled on the rest pad (10).
8, method as claimed in claim 7 is characterized in that, described guiding device (80) is installed on stator (60), so that receive the slip assembly of countershaft (30), rotating shaft (30) then is installed in rest pad (10).
9, method as claimed in claim 8 is characterized in that, with described guiding device (80) be installed to rotating shaft (20) around, rotating shaft (20) then is installed in rest pad (10).
10, method as claimed in claim 1, it is characterized in that, described guiding device (80) is the lining form, it comprise rotating shaft (20) and be placed on stator (60) and the bearing (13) of rest pad (10) between so that limit radial clearance between stator (60) and the rotor (50).
11, as the method for claim 10, it is characterized in that step afterwards that the method comprising the steps of " d ": the bearing (13) that rotor (50) is installed on rest pad (10); And, rotor (50) is fixed to rotating shaft (20) on every side, rotating shaft (20) then has been journaled on the rest pad (10).
As the method for claim 11, it is characterized in that 12, described guiding device (80) is installed on stator (60), so that receive slip assembly to the bearing (13) of rest pad (10).
As the method for claim 12, it is characterized in that 13, described guiding device (80) is installed on bearing (13), so that receive slip assembly to the stator (60) of rest pad (10).
14, method as claimed in claim 1 is characterized in that, one of bonding and welded condition of end at least (71) that can be by being positioned at the motor outer cover on the rest pad (10) comes performing step " c ".
As the method for claim 14, it is characterized in that 15, this method also comprises additional step: make at least one parts in the end (71) of motor outer cover (70) and the parts that rest pad (10) is limited be equipped with adhesive.
16, method as claimed in claim 1 is characterized in that, this method makes motor outer cover (70) be equipped with end (71), and these ends protrude in the edge (72) of motor outer cover (70) in axial mode.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR9802567A BR9802567C1 (en) | 1998-06-26 | 1998-06-26 | Electric motor assembly process. |
| BRPI98025678 | 1998-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1310877A true CN1310877A (en) | 2001-08-29 |
Family
ID=4069981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99808882 Pending CN1310877A (en) | 1998-06-26 | 1999-06-22 | A process for mounting an electric motor |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1090454A2 (en) |
| JP (1) | JP2002519988A (en) |
| CN (1) | CN1310877A (en) |
| BR (1) | BR9802567C1 (en) |
| SK (1) | SK19952000A3 (en) |
| WO (1) | WO2000001057A2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237742A (en) * | 2010-05-06 | 2011-11-09 | 斯维奇传动系统有限公司 | Electrical machine and a method for assembling it |
| CN102710070A (en) * | 2012-06-14 | 2012-10-03 | 湘潭电机股份有限公司 | Assembly device for integrally assembling stator and rotor |
| CN105858154B (en) * | 2016-04-28 | 2018-06-26 | 浙江厚达智能科技股份有限公司 | The terminal material tidying mechanism of motor stator terminal insertion machine |
| CN111313623A (en) * | 2019-11-29 | 2020-06-19 | 青岛中加特电气股份有限公司 | Assembling method of permanent magnet motor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4481024B2 (en) * | 2004-01-30 | 2010-06-16 | 三菱電機株式会社 | Electric motor manufacturing jig and electric motor manufacturing method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT618278A (en) * | 1958-11-04 | |||
| US4031610A (en) * | 1974-04-30 | 1977-06-28 | Airborne Mfg. Co. | Method of assembly of dynamoelectric machines |
| US4128935A (en) * | 1978-01-05 | 1978-12-12 | Whirlpool Corporation | Assembly method for a motor |
| DE3318921A1 (en) * | 1983-05-25 | 1984-11-29 | Robert Bosch Gmbh, 7000 Stuttgart | Motor compressor |
| US5033941A (en) * | 1990-02-27 | 1991-07-23 | American Standard Inc. | Method for assembling rotors without fixtures |
-
1998
- 1998-06-26 BR BR9802567A patent/BR9802567C1/en not_active IP Right Cessation
-
1999
- 1999-06-22 JP JP2000557537A patent/JP2002519988A/en not_active Withdrawn
- 1999-06-22 EP EP99928934A patent/EP1090454A2/en not_active Withdrawn
- 1999-06-22 CN CN 99808882 patent/CN1310877A/en active Pending
- 1999-06-22 SK SK1995-2000A patent/SK19952000A3/en unknown
- 1999-06-22 WO PCT/BR1999/000051 patent/WO2000001057A2/en not_active Application Discontinuation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237742A (en) * | 2010-05-06 | 2011-11-09 | 斯维奇传动系统有限公司 | Electrical machine and a method for assembling it |
| CN102237742B (en) * | 2010-05-06 | 2014-09-10 | 斯维奇传动系统有限公司 | Electrical machine and a method for assembling it |
| CN102710070A (en) * | 2012-06-14 | 2012-10-03 | 湘潭电机股份有限公司 | Assembly device for integrally assembling stator and rotor |
| CN105858154B (en) * | 2016-04-28 | 2018-06-26 | 浙江厚达智能科技股份有限公司 | The terminal material tidying mechanism of motor stator terminal insertion machine |
| CN111313623A (en) * | 2019-11-29 | 2020-06-19 | 青岛中加特电气股份有限公司 | Assembling method of permanent magnet motor |
Also Published As
| Publication number | Publication date |
|---|---|
| BR9802567C1 (en) | 2000-07-04 |
| JP2002519988A (en) | 2002-07-02 |
| WO2000001057A3 (en) | 2000-02-10 |
| SK19952000A3 (en) | 2001-06-11 |
| WO2000001057A2 (en) | 2000-01-06 |
| BR9802567A (en) | 2000-03-28 |
| EP1090454A2 (en) | 2001-04-11 |
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