CN103401370B - Expansion shaft device used for installing refrigeration compressor motor - Google Patents
Expansion shaft device used for installing refrigeration compressor motor Download PDFInfo
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- CN103401370B CN103401370B CN201310311547.9A CN201310311547A CN103401370B CN 103401370 B CN103401370 B CN 103401370B CN 201310311547 A CN201310311547 A CN 201310311547A CN 103401370 B CN103401370 B CN 103401370B
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- swelling shaft
- refrigeration compressor
- compressor motor
- slide
- expansion set
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Abstract
The invention discloses an expansion shaft device used for installing a refrigeration compressor motor, and is used for the field of the refrigeration compressor. The expansion shaft device used for installing the refrigeration compressor motor comprises a circular-tube shaped expansion shaft, an inner expansion sleeve and an outer expansion sleeve, wherein the inner expansion sleeve and the outer expansion sleeve are coaxially arranged in and outside the expansion shaft; the inner surface of the expansion shaft is an inner conical surface which is gradually reduced from top to bottom along the axial direction; the outer surface of the expansion shaft is an outer conical surface which is gradually expanded from top to bottom along the axial direction; the side walls of the inner expansion sleeve and the outer expansion sleeve are both provided with through holes evenly distributed along the circumference; an inner sliding block of which the outer end is fitted with the inner conical surface is respectively arranged in each through hole in the inner expansion sleeve; an outer sliding block of which the inner end is fitted with the outer conical surface is respectively arranged in each through hole in the outer expansion sleeve. According to the expansion shaft device used for installing the refrigeration compressor motor, which is disclosed by the invention, all components are tightly matched; the assembling offline problem due to an uneven stator and rotor installation gap can be effectively solved while the coaxial installation precision of the motor stator and the motor rotor is guaranteed, the assembling beat of the compressor is guaranteed, the production efficiency is improved, and meanwhile, a feasible scheme is provided for further reducing a gap between the stator and the rotor to improve the motor efficiency.
Description
Technical field
The present invention is used for refrigeration compressor art, particularly relates to a kind of swelling shaft device installed for refrigeration compressor motor.
Background technology
Refrigerant compressor many employings reciprocating compressor, reciprocating compressor belongs to positive displacement
compressor, be the gas of a constant volume is sequentially sucked and discharges the compressor of enclosure space.Be provided with motor in compressor, the stator of motor is fixedly connected with the body of compressor, and rotor is connected with bent axle, and rotor rotates and drives crankshaft connecting rod system to promote reciprocating motion of the pistons in stator, completes air-breathing, compression, exhaust, expansion Four processes.
Reducing stator and rotor air gap is improve a kind of important means of electric efficiency, and electric efficiency improves, and compressor efficiency also improves.Therefore any improvement taked refrigerant compressor and the measure that its efficiency and reliability are improved, totally calculate by the compressor that the whole world is using, this kind of measure can bring huge energy-saving benefit.Under existing refrigerant compressor assembly technology, rotor installation accuracy is not high is the major reason having a strong impact on compressor assembling beat, lower production efficiency, therefore cannot improve compressor efficiency by reducing stator and rotor air gap.
Along with the development of society, the requirement of refrigerator producer to compressor performance is more and more higher, and reduce a kind of important means (in current industry, electric machine rotor gap is generally at more than 0.25mm) that compressor electric motor rotor assemblage gap is raising compressor performance, but the reduction in electric machine rotor gap, the requirement of electric machine rotor installation accuracy is also uprised thereupon, otherwise and that cause production efficiency low problem uneven by machine air gap will be caused.
In prior art, motor most employing on the assembly line of compressor first assembles rotor, the assembly technology of rear assembling stator, this technique mainly contains two kinds of methods: be 1. assembled to after on bent axle by rotor, uses spacer shims uniform layout assembling stator after rotor periphery, trip bolt, pull out spacer shims, complete installation, but this method is not suitable for mechanization production, production efficiency is low; 2. accurate Central Hole of Cylinder Bolts seat dead eye, screw hole relative positioning point position, after assembling rotor, assembling stator after equipment accurate positioning cylinder seat anchor point and stator anchor point, this installation method needs cylinder seat, rotor, stator to have very high manufacturing accuracy and high accuracy stator assembly equipment, equipment investment, part processing cost are high, and part scrap rate is high.
Summary of the invention
For solving the problem, the invention provides a kind of installation accuracy, the speed that improve motor stator and rotor, being applicable to mechanization production, swelling shaft device installed by the motor boosted productivity.
The technical solution adopted for the present invention to solve the technical problems is: a kind of swelling shaft device installed for refrigeration compressor motor, comprise the swelling shaft of circular tube shaped and be coaxially located at the inner expension cap in swelling shaft inside and outside and outer expansion set, the inner surface of swelling shaft is the inner conical surface shunk gradually from top to bottom vertically, the outer surface of swelling shaft is the male cone (strobilus masculinus) expanded gradually from top to bottom vertically, the sidewall of inner expension cap and outer expansion set is equipped with some circumferentially uniform through holes, inner expension cap is equipped with in each through hole the inner slide that outer end and inner conical surface are fitted, outer expansion set is equipped with in each through hole inner outer slide of fitting with male cone (strobilus masculinus).
Be further used as the improvement of technical solution of the present invention, the sidewall of swelling shaft evenly offer some slots vertically, be provided with some securing members being fixedly connected with inner expension cap and outer expansion set through each slot.
Be further used as the improvement of technical solution of the present invention, the upper end of outer expansion set is provided with fixed support, and fixed support is provided with pilot hole directly over swelling shaft, is provided with the pull bar be coaxially fixedly connected with swelling shaft top through pilot hole.
Be further used as the improvement of technical solution of the present invention, the top of swelling shaft is provided with the interior edge of annular, passes along the screw being provided with fastening swelling shaft and pull bar in annular, is provided with screw lining between screw and the interior edge of annular.
Be further used as the improvement of technical solution of the present invention, the outside of outer expansion set is provided with the rubber ring of some each outer slides of tying tight, and the inner side of inner expension cap is provided with some spring coils strutting each inner slide.
Be further used as the improvement of technical solution of the present invention, outer expansion set and outer slide be equipped with the outer mounting groove of some placement rubber rings, inner expension cap and inner slide are equipped with the interior mounting groove of some placement spring coils.
Be further used as the improvement of technical solution of the present invention, the inner face of each inner slide and the outer face of each outer slide are the face of cylinder coaxial with swelling shaft.
Beneficial effect of the present invention: the present invention in use, outer expansion set is placed on the motor stator be pre-installed inner, inner expension cap is enclosed within bent axle, then upwards swelling shaft is pulled, under the effect of swelling shaft inner conical surface and male cone (strobilus masculinus), inner slide inwardly slides and holds bent axle tightly, and outer slide outwards slides and swelling motor stator inner circle, makes motor stator inner circle identical with the axle center of bent axle and fixed electrical machinery stator.Then in operation, rotor be hot jacket on bent axle, therefore rotor is identical with the axle center of bent axle, thus ensure that the gap uniformity of motor stator and rotor.In the present invention, each member in tight coordinates, and by first mounted motor stator mounting rotor of electric motor again, ensures motor stator and the coaxial installation accuracy of rotor, improves simultaneously and installs speed, be applicable to mechanization production.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is embodiment of the present invention internal structure schematic diagram;
Fig. 2 is embodiment of the present invention using state schematic diagram;
Fig. 3 is embodiment of the present invention axonometric drawing;
Fig. 4 is embodiment of the present invention explosive view.
Embodiment
With reference to Fig. 1 ~ Fig. 4, the invention provides a kind of swelling shaft device installed for refrigeration compressor motor, comprise the swelling shaft 1 of circular tube shaped and be coaxially located at inner expension cap 2 and the outer expansion set 3 in swelling shaft 1 inside and outside, the inner surface of swelling shaft 1 is the inner conical surface 10 shunk gradually from top to bottom vertically, the outer surface of swelling shaft 1 is the male cone (strobilus masculinus) 11 expanded gradually from top to bottom vertically, the sidewall of inner expension cap 2 and outer expansion set 3 is equipped with some circumferentially uniform through holes 4, inner expension cap 2 is equipped with in each through hole 4 inner slide 21 that outer end and inner conical surface 10 are fitted, outer expansion set 3 is equipped with in each through hole 4 inner outer slide 31 of fitting with male cone (strobilus masculinus) 11.
The present invention in use, outer expansion set 3 is placed on mounted motor stator 6 inner, inner expension cap 2 is enclosed within bent axle 7, then swelling shaft 1 is upwards pulled, under the effect of swelling shaft 1 inner conical surface 10 and male cone (strobilus masculinus) 11, inner slide 21 inwardly slides and holds bent axle 7 tightly, and outer slide 31 outwards slides and swelling motor stator 6 inner circle, makes motor stator 6 inner circle identical with the axle center of bent axle 7 and fixed electrical machinery stator 6.Then in operation, rotor be hot jacket on bent axle 7, therefore rotor is identical with the axle center of bent axle 7, thus ensure that the gap uniformity of motor stator 6 and rotor.In the present invention, each member in tight coordinates, by first mounted motor stator 6 mounting rotor of electric motor again, ensure motor stator 6 and the coaxial installation accuracy of rotor, improve simultaneously and speed is installed, be applicable to mechanization production, effectively solve the uneven assembling caused of rotor assemblage gap to roll off the production line, thus ensure the assembling beat of compressor, enhance productivity.In addition, the present invention can make rotor keep the consistency in axle center, ensures the even of rotor gap, so improve electric efficiency also to reduction rotor gap further provide a kind of feasible program.
As the preferred embodiment of the present invention, the sidewall of swelling shaft 1 evenly offers some slots 12 vertically, be provided with some securing members being fixedly connected with inner expension cap 2 and outer expansion set 3 through each slot 12.
Slot 12 upwards extends from swelling shaft 1 bottom, securing member is the pin 8 inner expension cap 2 and outer expansion set 3 connected as one through each slot 12, inner expension cap 2 is avoided to move upward with swelling shaft 1 with outer expansion set 3 when upwards pulling swelling shaft 1 by fixing outer expansion set 3, thus the inner slide 21 in through hole 4 and outer slide 31 are radially slided under the extruding of swelling shaft 1, the integraty that guarantee inner expension cap 2 and outer expansion set 3 are set of securing member, avoid fixing respectively for inner expension cap 2 and outer expansion set 3, improve result of use.
Certainly, pin 8 is preferred fastener of the present invention, all falls into protection scope of the present invention between what other were equivalent be fixedly connected with.
As the preferred embodiment of the present invention, the upper end of outer expansion set 3 is provided with fixed support 32, and fixed support 32 is provided with pilot hole 320 directly over swelling shaft 1, is provided with the pull bar 5 be coaxially fixedly connected with swelling shaft 1 top through pilot hole 320.
As the preferred embodiment of the present invention, the top of swelling shaft 1 is provided with along 13 in annular, is provided with fastening swelling shaft 1 and the screw 51 of pull bar 5, is provided with screw lining 52 in screw 51 and annular between 13 through in annular along 13.
When swelling shaft 1 works, by fixed support 32, outer expansion set 3 is fixedly connected with body, moved upward by the pneumatic or electronic pull bar 5 that makes, thus drive swelling shaft 1 to move upward by screw 51, on fixed support 32, pilot hole 320 arranges guarantee when being pulled upwardly pull bar 5, each inner slide 21 and outer slide 31 uniform force, improve the coaxial precision of motor stator 6 and bent axle 7.
As the preferred embodiment of the present invention, the outside of outer expansion set 3 is provided with the rubber ring 33 of some each outer slides 31 of tying tight, and the inner side of inner expension cap 2 is provided with some spring coils 22 strutting each inner slide 21.
As the preferred embodiment of the present invention, outer expansion set 3 and outer slide 31 are equipped with the outer mounting groove 34 of some placement rubber rings 33, inner expension cap 2 and inner slide 21 are equipped with the interior mounting groove 23 of some placement spring coils 22.
Rubber ring 33, outside in mounting groove 34 and by each outer slide 31 banding, each inner slide 21 struts by spring coil 22 in interior mounting groove 23, is put into motor stator 6 inner chamber and is enclosed within bent axle 7 time easy to use.
As the preferred embodiment of the present invention, the inner face of each inner slide 21 and the outer face of each outer slide 31 are the face of cylinder coaxial with swelling shaft 1.
The end face design on the face of cylinder increases each inner slide 21 and bent axle 7, contact-making surface between each outer slide 31 and motor stator 6 connects, and reduces pressure, avoids producing impression.
Certainly, the invention is not limited to above-mentioned execution mode, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite without prejudice to spirit of the present invention, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (7)
1. the swelling shaft device installed for refrigeration compressor motor, it is characterized in that: comprise the swelling shaft (1) of circular tube shaped and be coaxially located at inner expension cap (2) and the outer expansion set (3) in described swelling shaft (1) inside and outside, the inner surface of described swelling shaft (1) is the inner conical surface (10) shunk gradually from top to bottom vertically, the outer surface of swelling shaft (1) is the male cone (strobilus masculinus) (11) expanded gradually from top to bottom vertically, the sidewall of described inner expension cap (2) and outer expansion set (3) is equipped with some circumferentially uniform through holes (4), described inner expension cap (2) is equipped with in each through hole (4) inner slide (21) that outer end and described inner conical surface (10) are fitted, described outer expansion set (3) is equipped with in each through hole (4) inner outer slide (31) of fitting with described male cone (strobilus masculinus) (11).
2. the swelling shaft device installed for refrigeration compressor motor according to claim 1, it is characterized in that: the sidewall of described swelling shaft (1) evenly offers some slots (12) vertically, be provided with some securing members being fixedly connected with inner expension cap (2) and outer expansion set (3) through each described slot (12).
3. the swelling shaft device installed for refrigeration compressor motor according to claim 1 and 2, it is characterized in that: the upper end of described outer expansion set (3) is provided with fixed support (32), described fixed support (32) is provided with pilot hole (320) directly over swelling shaft (1), is provided with the pull bar (5) be coaxially fixedly connected with swelling shaft (1) top through described pilot hole (320).
4. the swelling shaft device installed for refrigeration compressor motor according to claim 3, it is characterized in that: the top of described swelling shaft (1) is provided with in annular along (13), be provided with fastening swelling shaft (1) and the screw (51) of pull bar (5) through in described annular along (13), in described screw (51) and annular, between (13), be provided with screw lining (52).
5. the swelling shaft device installed for refrigeration compressor motor according to claim 1 and 2, it is characterized in that: the outside of described outer expansion set (3) is provided with the rubber ring (33) of some each outer slide (31) of tying tight, the inner side of described inner expension cap (2) is provided with some spring coils (22) strutting each inner slide (21).
6. the swelling shaft device installed for refrigeration compressor motor according to claim 5, it is characterized in that: the outer mounting groove (34) described outer expansion set (3) and outer slide (31) being equipped with the described rubber ring of some placements (33), described inner expension cap (2) and inner slide (21) are equipped with the interior mounting groove (23) of the described spring coil of some placements (22).
7. the swelling shaft device installed for refrigeration compressor motor according to claim 1 and 2, is characterized in that: the inner face of each described inner slide (21) and the outer face of each described outer slide (31) are the face of cylinder coaxial with swelling shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310311547.9A CN103401370B (en) | 2013-07-23 | 2013-07-23 | Expansion shaft device used for installing refrigeration compressor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310311547.9A CN103401370B (en) | 2013-07-23 | 2013-07-23 | Expansion shaft device used for installing refrigeration compressor motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103401370A CN103401370A (en) | 2013-11-20 |
| CN103401370B true CN103401370B (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310311547.9A Active CN103401370B (en) | 2013-07-23 | 2013-07-23 | Expansion shaft device used for installing refrigeration compressor motor |
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| CN (1) | CN103401370B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104959742B (en) * | 2015-07-13 | 2018-07-17 | 广东美芝制冷设备有限公司 | The assembly tooling of rotary compressor and assembly method |
| CN109822105B (en) * | 2019-04-19 | 2024-01-30 | 郑州机械研究所有限公司 | Base metal center continuous feeding mechanism for atomization pulverizing of plasma rotating electrode |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2734703Y (en) * | 2004-10-29 | 2005-10-19 | 西南铝业（集团）有限责任公司 | Aluminium foil cutting and winding expand axle |
| CN201438662U (en) * | 2009-05-08 | 2010-04-14 | 北京毕捷电机股份有限公司 | Tire expanding device |
| CN101944809B (en) * | 2009-07-09 | 2012-09-05 | 山东中际电工装备股份有限公司 | Expanding mechanism of expanding plate |
| US8458895B2 (en) * | 2011-09-30 | 2013-06-11 | General Electric Company | Assembly for positioning a rotor retaining ring |
| CN202586662U (en) * | 2012-05-10 | 2012-12-05 | 安徽皖南新维电机有限公司 | Novel expanding device |
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| CN103401370A (en) | 2013-11-20 |
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