CN102896502A - Bearingless direct-driven rotating platform - Google Patents
Bearingless direct-driven rotating platform Download PDFInfo
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- CN102896502A CN102896502A CN2012103780345A CN201210378034A CN102896502A CN 102896502 A CN102896502 A CN 102896502A CN 2012103780345 A CN2012103780345 A CN 2012103780345A CN 201210378034 A CN201210378034 A CN 201210378034A CN 102896502 A CN102896502 A CN 102896502A
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- motor rotor
- drive motor
- direct drive
- flange
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Abstract
The invention discloses a bearingless direct-driven rotating platform, comprises a direct-driven motor rotor, a direct-driven motor stator and a shell, wherein the direct-driven motor stator is fixedly connected with the shell; the bearingless direct-driven rotating platform is characterized in that the flange of the direct-driven motor rotor is arranged in an axial locating groove which is arranged on the inner wall of the shell, and the flange is slidingly matched with a contact surface of the axial locating groove, to drive the direct-driven motor rotor to axially rotate. According to the bearingless direct-driven rotating platform provided by the invention, the bearing in the conventional direct-driven rotating platform is avoided, and the flange of the direct-driven motor rotor is directly supported and arranged in the axial locating groove which is arranged on the inner wall of the shell to form a sliding fit, therefore, on the basis of not affecting the axial rotation of the direct-driven motor rotor, the axial sizes of the direct-driven rotating platforms of various models are reduced by 50-200mm, and the size of the processed workpiece is correspondingly increased.
Description
Technical field
The present invention relates to a kind of platform that directly turns, refer to particularly a kind of be suitable for that large load, low speed or discontinuous rotation occasion use directly turn platform without bearing.
Background technology
Directly turn platform generally by exporting forming without frame direct driving motor, bearing, supporting bable tops, high-acruracy survey element and positioning unit structural member etc. of driving torque, bearing is directly to turn platform to rotate requisite parts usually.And directly turning platform as the 4th axle of lathe, its thickness has directly tied up the processing stroke of lathe, but has dwindled the size range of processing work.In the reality, then need increase the processing stroke of lathe as guaranteeing the processing work size, can cause so the significantly increase of lathe price.And in order to guarantee directly to turn to greatest extent the driving torque of platform, the radial dimension of motor often can't shorten.
Summary of the invention
Technical problem to be solved by this invention just provides and a kind ofly directly turns platform without bearing, has less axial dimension, but can increase on the basis that does not change other structure of lathe the size of processing work.
For solving the problems of the technologies described above, provided by the inventionly a kind ofly directly turn platform without bearing, comprise direct drive motor rotor, direct driving motor stator and casing, described direct driving motor stator is fixedly connected with casing, its special feature is: the flange of described direct drive motor rotor props up in the axial location groove of being located at the casing inner wall setting, the contact-making surface formation of flange and axial location groove is slidingly matched, and is used for the axial-rotation of direct drive motor rotor.
In the technique scheme, on the axial location groove of described casing, with the mating surface of direct drive motor rotor flange through quenching and milled processed, and be filled with lubricating grease.
Further, the fineness of described mating surface after grinding reaches
The preferred lithium saponify of described lubricating grease.
In the technique scheme, the flange upper surface of described direct drive motor rotor is provided with preload ring, is used for regulating the damping moment of torsion of direct drive motor rotor, and described preload ring links to each other with casing.
Compared with prior art, beneficial effect of the present invention is: save traditional bearing that directly turns in the platform, be slidingly matched and the flange of direct drive motor rotor directly is located in the axial location groove of casing inner wall setting and is consisted of, on the basis that does not affect the axial rotation of driving rotor, make the axial dimension that directly turns platform of all size reduce by 50 ~ 200mm, but and then increased accordingly the size of processing work.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention;
Among the figure: 1-axle rotating seal ring, 2-preload ring, 3-lubricating grease, 4-direct drive motor rotor, 5-direct driving motor stator, 6-casing, 7-measuring cell.
The specific embodiment
Below in conjunction with accompanying drawing specific embodiments of the invention are described in further detail:
As shown in Figure 1, of the present inventionly a kind ofly directly turn platform without bearing, comprise direct drive motor rotor 4, direct driving motor stator 5, casing 6 and measuring cell 7.Direct driving motor stator 5 is fixedly connected with casing 6 respectively with measuring cell 7.The flange of direct drive motor rotor 4 props up in the axial location groove of being located at the setting of casing 6 inwalls, the flange upper surface then is provided with the preload ring 2 that links to each other with casing 6, by the adjusting in radial and axial gap between preload ring 2 and the direct drive motor rotor 4, can regulate the damping moment of torsion of direct drive motor rotor 4.In actual the use, pretightning force should guarantee that initial damping moment of torsion is not more than 5% of direct driving motor nominal torque.Also be provided with axle between preload ring 2 and the direct drive motor rotor 4 with rotating seal ring 1, both played sealing function, do not affect again the rotation of direct drive motor rotor 4.The contact-making surface formation of the flange of direct drive motor rotor 4 and axial location groove is slidingly matched, and is convenient to the axial-rotation of direct drive motor rotor 4, and this mating surface is through quenching and milled processed, and the surface abrasion resistance after the quenching is better, and the fineness after the grinding reaches
Repack with grease 3 after processing, preferred stability in the present embodiment, the lithium saponify that wearability is good.
Because the platform that directly turns of the present invention omitted at least one to two bearing than traditional structure, thus its axial dimension tradition directly turn platform and reduce by 50 ~ 200mm, corresponding, but the size of lathe processing work has increased 50 ~ 200mm.
Core of the present invention is the flange of direct drive motor rotor directly is located in the axial location groove of casing inner wall setting and consists of to be slidingly matched, so that the bearing that need not in the traditional structure namely can be realized original function, significantly reduce directly to turn the axial dimension of platform, but so that increased the size of processing work on the basis that does not change other structure of lathe.So its protection domain is not limited to above-described embodiment.Obviously, those skilled in the art can carry out various changes and distortion and do not depart from the scope of the present invention and spirit the present invention, for example: it is described that the position of casing 6 inwall axial location grooves and size are not limited to embodiment, as long as be slidingly matched with corresponding direct drive motor rotor 4; Lubricating grease 3 also can be selected other conventional kind etc.If these changes and distortion belong in the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and is out of shape interior.
Claims (5)
1. one kind directly turns platform without bearing, comprise direct drive motor rotor (4), direct driving motor stator (5) and casing (6), described direct driving motor stator (5) is fixedly connected with casing (6), it is characterized in that: the flange of described direct drive motor rotor (4) props up in the axial location groove of being located at the setting of casing (6) inwall, the contact-making surface formation of flange and axial location groove is slidingly matched, and is used for the axial-rotation of direct drive motor rotor (4).
2. according to claim 1ly a kind ofly directly turn platform without bearing, it is characterized in that: on the axial location groove of described casing (6), with the mating surface of direct drive motor rotor (4) flange through quenching and milled processed, and be filled with lubricating grease (3).
3. according to claim 2ly a kind ofly directly turn platform without bearing, it is characterized in that: the fineness of described mating surface after grinding reaches
4. according to claim 2ly a kind ofly directly turn platform without bearing, it is characterized in that: described lubricating grease (3) is lithium saponify.
5. arbitrary claim is described in 4 according to claim 1 a kind ofly directly turns platform without bearing, it is characterized in that: the flange upper surface of described direct drive motor rotor (4) is provided with preload ring (2), be used for regulating the damping moment of torsion of direct drive motor rotor (4), described preload ring (2) links to each other with casing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210378034.5A CN102896502B (en) | 2012-10-08 | 2012-10-08 | A kind of bearing-free directly turns platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210378034.5A CN102896502B (en) | 2012-10-08 | 2012-10-08 | A kind of bearing-free directly turns platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102896502A true CN102896502A (en) | 2013-01-30 |
| CN102896502B CN102896502B (en) | 2016-02-10 |
Family
ID=47569145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210378034.5A Active CN102896502B (en) | 2012-10-08 | 2012-10-08 | A kind of bearing-free directly turns platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102896502B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112198344A (en) * | 2020-10-19 | 2021-01-08 | 华中科技大学 | Full-freedom-degree bearing-free motor test platform |
Citations (10)
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|---|---|---|---|---|
| GB238840A (en) * | 1925-07-07 | 1925-08-27 | Waldau Maschf | Improvements in screw pumps |
| FR2309070A1 (en) * | 1975-04-23 | 1976-11-19 | Dornier System Gmbh | PULSE MOTOR |
| US5577775A (en) * | 1995-02-07 | 1996-11-26 | Barco, A Division Of Marison Industries | Bearingless coolant union |
| CN101123377A (en) * | 2007-08-15 | 2008-02-13 | 北京首科凯奇电气技术有限公司 | A direct drive turning device |
| CN101480778A (en) * | 2009-01-24 | 2009-07-15 | 苏州江南电梯(集团)有限公司 | Direct driving type accurate turn plate |
| DE102008033872A1 (en) * | 2008-07-18 | 2010-01-21 | Maschinenfabrik FRÖMAG GmbH & Co. KG | Device for drawing, shaping, evacuating, piercing, calibrating and/or twisting of e.g. recess, in workpiece, has drive fastened at machine frame, and moving tool carrier, where drive is formed as electromagnetic linear motor |
| CN201639404U (en) * | 2010-03-30 | 2010-11-17 | 宁波安信数控技术有限公司 | Bearingless motor |
| CN201792207U (en) * | 2010-09-15 | 2011-04-13 | 株洲卓越高科技实业有限公司 | Rotating table |
| CN102287487A (en) * | 2011-08-12 | 2011-12-21 | 中国煤炭科工集团太原研究院 | Planetary transmission device with high reliability and no bearing |
| CN202190157U (en) * | 2011-07-16 | 2012-04-11 | 李照祥 | Novel bearingless motor |
-
2012
- 2012-10-08 CN CN201210378034.5A patent/CN102896502B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB238840A (en) * | 1925-07-07 | 1925-08-27 | Waldau Maschf | Improvements in screw pumps |
| FR2309070A1 (en) * | 1975-04-23 | 1976-11-19 | Dornier System Gmbh | PULSE MOTOR |
| US5577775A (en) * | 1995-02-07 | 1996-11-26 | Barco, A Division Of Marison Industries | Bearingless coolant union |
| CN101123377A (en) * | 2007-08-15 | 2008-02-13 | 北京首科凯奇电气技术有限公司 | A direct drive turning device |
| DE102008033872A1 (en) * | 2008-07-18 | 2010-01-21 | Maschinenfabrik FRÖMAG GmbH & Co. KG | Device for drawing, shaping, evacuating, piercing, calibrating and/or twisting of e.g. recess, in workpiece, has drive fastened at machine frame, and moving tool carrier, where drive is formed as electromagnetic linear motor |
| CN101480778A (en) * | 2009-01-24 | 2009-07-15 | 苏州江南电梯(集团)有限公司 | Direct driving type accurate turn plate |
| CN201639404U (en) * | 2010-03-30 | 2010-11-17 | 宁波安信数控技术有限公司 | Bearingless motor |
| CN201792207U (en) * | 2010-09-15 | 2011-04-13 | 株洲卓越高科技实业有限公司 | Rotating table |
| CN202190157U (en) * | 2011-07-16 | 2012-04-11 | 李照祥 | Novel bearingless motor |
| CN102287487A (en) * | 2011-08-12 | 2011-12-21 | 中国煤炭科工集团太原研究院 | Planetary transmission device with high reliability and no bearing |
Non-Patent Citations (1)
| Title |
|---|
| 卢健康: "《电机与电力拖动简明教程》", 31 March 2012 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112198344A (en) * | 2020-10-19 | 2021-01-08 | 华中科技大学 | Full-freedom-degree bearing-free motor test platform |
| CN112198344B (en) * | 2020-10-19 | 2021-11-19 | 华中科技大学 | Full-freedom-degree bearing-free motor test platform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102896502B (en) | 2016-02-10 |
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