CN201075747Y - Structure of medium-sized vertical type DC machine - Google Patents
Structure of medium-sized vertical type DC machine Download PDFInfo
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- CN201075747Y CN201075747Y CNU2007200742115U CN200720074211U CN201075747Y CN 201075747 Y CN201075747 Y CN 201075747Y CN U2007200742115 U CNU2007200742115 U CN U2007200742115U CN 200720074211 U CN200720074211 U CN 200720074211U CN 201075747 Y CN201075747 Y CN 201075747Y
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Abstract
The utility model discloses a medium-sized vertical type direct current motor, which includes an upper end cover, a bottom end cover, a stator, a rotor including an armature and a rotation shaft, an upper bearing subassembly and a lower bearing subassembly that are sleeved on the non- shaft-extension end and the shaft-extension end of the rotation shaft respectively; the length of the armature iron core is a lengthened type; the upper bearing subassembly includes an internal cap of the upper bearing, an external cap of the upper bearing and two same upper bearings that are arranged back-to-back between the internal cap and the external cap of the upper bearing; the lower bearing subassembly includes an internal cap of the lower bearing, an external cap of the lower bearing and a lower bearing arranged between the internal cap and external cap of the lower bearing. By adopting the structure of the medium-sized vertical type direct current motor, the utility model can guarantee the performance of the motor of finished product and can also bear the horizontal type test of the motor before leaving the factor.
Description
Technical field
The utility model relates to a kind of structure of medium-sized vertical direct current machine.
Background technology
Along with the development of electric machine industry, the manufacturing technology of DC motor is also got over ripe, has formed the motor product seriation.But, also must develop a series of specific type of electric machines to satisfy various application scenarios for the various application needs of social construction.The specification of vertical direct current machine of the present utility model is 600KW, 660V, 250～600r/min, (0～250r/min is permanent torque variable voltage control, and 250～600r/min is permanent power weak-magnetic speed-regulating), exciting voltage is separate excitation 220/110V, the F class F insulation, the examination of B stage temperature rise.This motor should belong to large-scale dc motor Z710 series on specification, yet its height of center but is 560, motor produces the torque of 22.9kNm when nominal load, compare by calculating the shear stress allowable of extrusion stress and key between shaft extension end distorting stress, axle and the key, if select common #45 steel for use, diameter of shaft is about 230mm, well beyond the design permissible value.The total weight of armature is quite big in addition, and motor is vertical operation, and the heavy armature load mainly acts on the bearing of non-shaft stretching end.Therefore how developing a kind of like this special machines has become insider's problem demanding prompt solution
Summary of the invention
So the purpose of this utility model is overcoming the deficiencies in the prior art, provide a kind of and can guarantee the finished product motor performance, can bear the structure of the medium-sized vertical direct current machine of the preceding horizontal test of Motor Production Test again.
The technical scheme that realizes above-mentioned purpose is: a kind of structure of medium-sized vertical direct current machine, comprise upper end cover, bottom end cover, stator, contain the rotor of armature and rotating shaft and be set in the upper bearing (metal) assembly of rotating shaft non-shaft stretching end and the lower bearing component of shaft extension end, wherein
The length of described armature core is extended type;
Described upper bearing (metal) assembly comprise a upper bearing (metal) inner cap, a upper bearing (metal) enclosing cover and two identical be installed in upper bearing (metal) between upper bearing (metal) inner cap and the upper bearing (metal) enclosing cover in mode back-to-back;
Described lower bearing component comprises internal bearing cover, once bearing end cover and is installed in the lower bearing between lower bearing inner cap and the lower bearing enclosing cover.
The structure of above-mentioned medium-sized vertical direct current machine, wherein, described upper bearing (metal) is an angular contact ball bearing.
The structure of above-mentioned medium-sized vertical direct current machine, wherein, described lower bearing is a cylinder roller bearing.
The structure of above-mentioned medium-sized vertical direct current machine, wherein, the upper and lower end of described motor covers a measuring temperature of bearing element respectively is installed, wherein, the thermometer hole of the temperature element of lower bearing component is located at the inboard of lower bearing enclosing cover, and the thermometric outlet box is installed on the medial surface of lower bearing enclosing cover.
Owing to adopted the structure of medium-sized vertical direct current machine of the present utility model, the non-shaft stretching end that is machine shaft adopts FAG angular contact ball bearing 7240B, and pairing adopts back-to-back mode to install, and upper bearing (metal) can bear the axial load from both direction like this, and the rigidity of assurance upper bearing (metal) is higher; The finished product motor performance can be guaranteed, the preceding horizontal test of Motor Production Test can be born again.The shaft extension end bearing of machine shaft adopts FAG single row roller bearing NU244EC/C3, to guarantee the motor safety even running.
Description of drawings
Fig. 1 is the structural representation of medium-sized vertical direct current machine of the present utility model;
Fig. 2 is the structural representation of the upper bearing (metal) assembly of medium-sized vertical direct current machine of the present utility model;
Fig. 3 is the structural representation of the lower bearing component of medium-sized vertical direct current machine of the present utility model.
Embodiment
See also Fig. 1 and Fig. 2, the structure of medium-sized vertical direct current machine of the present utility model, comprise upper end cover 1, bottom end cover 2, stator 3, contain the rotor of armature 41 and rotating shaft 42 and be set in the upper bearing (metal) assembly 5 of rotating shaft 42 non-shaft stretching ends and the lower bearing component 6 of shaft extension end, wherein, the length L of armature 42 iron cores is an extended type, and 950mm is arranged approximately.
Upper bearing (metal) assembly 5 comprises a upper bearing (metal) inner cap 51, a upper bearing (metal) enclosing cover 52, go up labyrinth plate 53, two identical is installed in upper bearing (metal) 54, stop washer 55 between upper bearing (metal) inner cap 51 and the upper bearing (metal) enclosing cover 52 in mode back-to-back, wherein, upper bearing (metal) 54 is an angular contact thrust.
Because the gross weight of the armature of this medium-sized vertical direct current machine reaches about 3900kg, and motor is vertical operation, so load mainly acts on the upper bearing (metal) 54 of non-shaft stretching end, be equivalent to bear 38.2kN axial load and 22.8kN radial load, through axle is that load distributes and shaft strength calculates, the upper bearing (metal) 54 of non-shaft stretching end adopts FAG angular contact ball bearing 7240B, and pairing adopts back-to-back mode to install, upper bearing (metal) 54 can bear the axial load from both direction like this, guarantees that the rigidity of upper bearing (metal) 54 is higher; Can guarantee the finished product motor performance, can bear the preceding horizontal test of Motor Production Test again, 63 of the lower bearings of shaft extension end adopt FAG single row roller bearing NU244EC/C3, to guarantee the motor safety even running.
One measuring temperature of bearing element (not shown) respectively is installed on the upper and lower end cap 1,2 of motor, this temperature element is a Pt100 measuring temperature of bearing element, wherein, the thermometer hole of the temperature element of lower bearing component 6 is located at the inboard of bearing end cover 62, the thermometric outlet box is installed on the medial surface of bearing end cover 62, is very easy to motor and dismantles in actual motion and the maintenance temperature element.
Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (4)
1. the structure of a medium-sized vertical direct current machine comprises upper end cover, bottom end cover, stator, contains the rotor of armature and rotating shaft and is set in the upper bearing (metal) assembly of rotating shaft non-shaft stretching end and the lower bearing component of shaft extension end, it is characterized in that,
The length of described armature core is extended type;
Described upper bearing (metal) assembly comprise a upper bearing (metal) inner cap, a upper bearing (metal) enclosing cover and two identical be installed in upper bearing (metal) between upper bearing (metal) inner cap and the upper bearing (metal) enclosing cover in mode back-to-back;
Described lower bearing component comprises internal bearing cover, once bearing end cover and is installed in the lower bearing between lower bearing inner cap and the lower bearing enclosing cover.
2. the structure of medium-sized vertical direct current machine according to claim 1 is characterized in that, described upper bearing (metal) is an angular contact ball bearing.
3. the structure of medium-sized vertical direct current machine according to claim 1 and 2 is characterized in that, described lower bearing is a cylinder roller bearing.
4. the structure of medium-sized vertical direct current machine according to claim 1, it is characterized in that, the upper and lower end of described motor covers a measuring temperature of bearing element respectively is installed, wherein, the thermometer hole of the temperature element of lower bearing component is located at the inboard of lower bearing enclosing cover, and the thermometric outlet box is installed on the medial surface of lower bearing enclosing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200742115U CN201075747Y (en) | 2007-08-29 | 2007-08-29 | Structure of medium-sized vertical type DC machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200742115U CN201075747Y (en) | 2007-08-29 | 2007-08-29 | Structure of medium-sized vertical type DC machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075747Y true CN201075747Y (en) | 2008-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200742115U Expired - Fee Related CN201075747Y (en) | 2007-08-29 | 2007-08-29 | Structure of medium-sized vertical type DC machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075747Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710753B (en) * | 2009-11-05 | 2011-12-21 | 无锡哈电电机有限公司 | Shipping propulsion DC motor |
| CN102377301A (en) * | 2010-08-19 | 2012-03-14 | 永济新时速电机电器有限责任公司 | Asynchronous motor for rail grinding train |
| CN102510161A (en) * | 2011-11-19 | 2012-06-20 | 中电电机股份有限公司 | Bearing device of direct current vertical motor |
| CN103051100A (en) * | 2012-12-03 | 2013-04-17 | 江苏航天动力机电有限公司 | Novel vertical direct-current motor structure |
| CN105471161A (en) * | 2016-01-07 | 2016-04-06 | 中电电机股份有限公司 | Bearing assembling structure for vertical/horizontal-type dual-purpose motor |
| CN107910976A (en) * | 2017-12-13 | 2018-04-13 | 中车株洲电机有限公司 | A kind of vertical machine and its bottom end bearing structure |
-
2007
- 2007-08-29 CN CNU2007200742115U patent/CN201075747Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101710753B (en) * | 2009-11-05 | 2011-12-21 | 无锡哈电电机有限公司 | Shipping propulsion DC motor |
| CN102377301A (en) * | 2010-08-19 | 2012-03-14 | 永济新时速电机电器有限责任公司 | Asynchronous motor for rail grinding train |
| CN102377301B (en) * | 2010-08-19 | 2013-06-19 | 永济新时速电机电器有限责任公司 | Asynchronous motor for rail grinding train |
| CN102510161A (en) * | 2011-11-19 | 2012-06-20 | 中电电机股份有限公司 | Bearing device of direct current vertical motor |
| CN103051100A (en) * | 2012-12-03 | 2013-04-17 | 江苏航天动力机电有限公司 | Novel vertical direct-current motor structure |
| CN105471161A (en) * | 2016-01-07 | 2016-04-06 | 中电电机股份有限公司 | Bearing assembling structure for vertical/horizontal-type dual-purpose motor |
| CN107910976A (en) * | 2017-12-13 | 2018-04-13 | 中车株洲电机有限公司 | A kind of vertical machine and its bottom end bearing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080618 Termination date: 20150829 |
|
| EXPY | Termination of patent right or utility model |