CN204381422U - The cooling structure of electro spindle - Google Patents
The cooling structure of electro spindle Download PDFInfo
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- CN204381422U CN204381422U CN201420850384.1U CN201420850384U CN204381422U CN 204381422 U CN204381422 U CN 204381422U CN 201420850384 U CN201420850384 U CN 201420850384U CN 204381422 U CN204381422 U CN 204381422U
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- cooling channel
- top chock
- inner sleeve
- electro spindle
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Abstract
The utility model discloses a kind of cooling structure of electro spindle, comprise body, stator, upper bearing (metal), lower bearing, inner sleeve, top chock, the lower overcoat be sleeved on body bottom; Described top chock is provided with liquid outlet channel, feed pathway; Described body is provided with the first communicating passage, the second communicating passage, third connecting passage, the 4th communicating passage; Coordinate between the lateral wall of described top chock lower end and the madial wall of body and be formed with annular cooling channel; Coordinate between the madial wall of described lower overcoat and the lateral wall of body lower end and be formed with the first spiral cooling channel; Coordinate between the lateral wall of described inner sleeve and the madial wall of body and be formed with the second spiral cooling channel.The utility model can reduce lower bearing, upper bearing (metal), stator heat axle core is impacted; And, also can be formed and first cool lower bearing, then cool upper bearing (metal), finally cool the cooling order of stator, can further improve the machining accuracy of electro spindle.
Description
Technical field
The utility model relates to a kind of cooling structure of electro spindle.
Background technology
Electro spindle is usually used in carry its tools and rotates, and processes workpiece to utilize cutter.And be provided with in electro spindle upper bearing (metal), lower bearing, stator, for carry its tools rotate axle core; Described axle core is inserted in upper bearing (metal) and lower bearing, and axle core is provided with the rotor matched with stator.And in the electro spindle course of work, the heat that stator produces is passed to rotor in the mode of heat trnasfer, and upper bearing (metal), lower bearing also can produce a large amount of heats because rubbing, and after the heat of rotor, upper bearing (metal), lower bearing is passed to axle core, axle core can be caused to produce thermal stretching in the axial direction, thus affect the machining accuracy of electro spindle.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is the cooling structure providing a kind of electro spindle, its design of combination by employing first spiral cooling channel, annular cooling channel, the second spiral cooling channel, fluid cooling media can be utilized to cool lower bearing, upper bearing (metal), stator, thus its heat can be taken away, with reduce lower bearing, upper bearing (metal), stator heat axle core is impacted.
For solving the problem, the technical scheme that the utility model adopts is as follows:
The cooling structure of electro spindle, comprises body, stator, upper bearing (metal), the lower bearing be arranged in body bottom; This cooling structure also comprises the inner sleeve be arranged in body, is arranged on the top chock of body upper end, the lower overcoat be sleeved on body bottom; Described stator is arranged in inner sleeve, and described upper bearing (metal) is arranged in top chock; The feed pathway described top chock is provided with liquid outlet channel, flowing into for fluid cooling media; Described body is provided with the first communicating passage, the second communicating passage, third connecting passage, the 4th communicating passage; The lower end of described top chock is inserted in body, and coordinates the annular cooling channel being formed with and flowing through for fluid cooling media between the lateral wall of top chock lower end and the madial wall of body; The first spiral cooling channel being formed and flowing through for fluid cooling media is coordinated between the madial wall of described lower overcoat and the lateral wall of body bottom; One end of described first spiral cooling channel is communicated with feed pathway by the first communicating passage, and the other end is communicated with annular cooling channel by the second communicating passage; The second spiral cooling channel being formed and flowing through for fluid cooling media is coordinated between the lateral wall of described inner sleeve and the madial wall of body; One end of described second spiral cooling channel is communicated with annular cooling channel by third connecting passage, and the other end is communicated with liquid outlet channel by the 4th communicating passage.
Described body is hollow form and two ends all have opening.
Also sealing ring is installed between described body and top chock, described body is provided with the embedding slot for sealing ring setting-in.
Described top chock, inner sleeve, lower overcoat axially arranging successively from top to bottom along body.
Described inner sleeve is the copper inner sleeve adopting copper alloy to make.
The liquid outlet of described liquid outlet channel, the inlet of feed pathway are all arranged on the upper end of top chock.
Annular cooling channel is surrounded on the outside of top chock lower end, and the first spiral cooling channel is surrounded on the outside of body lower end, and the second spiral cooling channel is surrounded on the outside of inner sleeve.
Compared to existing technology, the beneficial effects of the utility model are:
Compared with prior art, the utility model is by employing first spiral cooling channel, annular cooling channel, the combination design of the second spiral cooling channel, fluid cooling media can be utilized lower bearing, upper bearing (metal), stator cools, thus its heat can be taken away, to reduce lower bearing, upper bearing (metal), the heat of stator impacts axle core, effectively can reduce the thermal expansion length of axle core, thus the machining accuracy of electro spindle can be improved, and, also can to upper bearing (metal), lower bearing, stator fully cools, the thermal deformation of upper bearing (metal) and lower bearing can be avoided excessive excessive with radial load, effectively can extend the service life of upper bearing (metal) and lower bearing, and can guarantee that the service behaviour of stator is more stable, in addition, by rationally arranging the annexation of the first spiral cooling channel, annular cooling channel, the second spiral cooling channel, also can be formed and first cooling lower bearing, then cooling upper bearing (metal), finally cool the cooling order of stator, can further improve the machining accuracy of electro spindle, in addition, by adopting copper inner sleeve, can heat-transfer rate be improved, and contribute to the integral rigidity protecting body.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Wherein, 1, body; 11, the first communicating passage; 12, the second communicating passage; 13, third connecting passage; 14, the 4th communicating passage; 2, inner sleeve; 21, the second spiral cooling channel; 3, top chock; 31, feed pathway; 32, liquid outlet channel; 33, annular cooling channel; 4, lower overcoat; 41, the first spiral cooling channel; 5, sealing ring.
Detailed description of the invention
Below, by reference to the accompanying drawings and detailed description of the invention, the utility model is described further, understands the utility model technical thought required for protection so that clearer.
As shown in Figure 1, 2, 3, be the cooling structure of electro spindle of the present utility model, comprise body 1, stator, upper bearing (metal), the lower bearing be arranged in body 1 bottom; This cooling structure also comprises the inner sleeve 2 be arranged in body 1, is arranged on the top chock 3 of body 1 upper end, the lower overcoat 4 be sleeved on body 1 bottom; Described stator is arranged in inner sleeve 2, and described upper bearing (metal) is arranged in top chock 3; The feed pathway 31 described top chock 3 is provided with liquid outlet channel 32, flowing into for fluid cooling media (such as cooling water etc.); Described body 1 is provided with the first communicating passage 11, second communicating passage 12, third connecting passage 13, the 4th communicating passage 14; The lower end of described top chock 3 is inserted in body 1, and coordinates the annular cooling channel 33 being formed with and flowing through for fluid cooling media between the lateral wall of top chock 3 lower end and the madial wall of body 1; The first spiral cooling channel 41 being formed and flowing through for fluid cooling media is coordinated between the madial wall of described lower overcoat 4 and the lateral wall of body 1 bottom; One end of described first spiral cooling channel 41 is communicated with feed pathway 31 by the first communicating passage 11, and the other end is communicated with annular cooling channel 33 by the second communicating passage 12; The second spiral cooling channel 21 being formed and flowing through for fluid cooling media is coordinated between the lateral wall of described inner sleeve 2 and the madial wall of body 1; One end of described second spiral cooling channel 21 is communicated with annular cooling channel 33 by third connecting passage 13, and the other end is communicated with liquid outlet channel 32 by the 4th communicating passage 14.Concrete, described top chock 3, inner sleeve 2, lower overcoat 4 axially arranging successively from top to bottom along body 1.Annular cooling channel 33 is surrounded on the outside of top chock 3 lower end, and the first spiral cooling channel 41 is surrounded on the outside of body 1 lower end, and the second spiral cooling channel 21 is surrounded on the outside of inner sleeve 2.
Preferably, described body 1 is in hollow form and two ends all have opening.
Preferably, between described body 1 and top chock 3, sealing ring 5 is also installed, described body 1 is provided with the embedding slot for sealing ring 5 setting-in, to guarantee the sealing between body 1 and top chock 3.
Preferably; described inner sleeve 2 is the copper inner sleeve 2 adopting copper alloy to make; and due to the thermal conductivity factor of copper inner sleeve 2 higher, heat conduction can be made faster, and thinner than the thickness of body 1 by being set to by the thickness of copper inner sleeve 2; be conducive to improving heat transfer efficiency further; and, in formation second spiral cooling channel 21 process, by utilizing copper inner sleeve 2; also can avoid processing bendway on body 1, thus the integral rigidity of body 1 can be protected.
The liquid outlet of described liquid outlet channel 32, the inlet of feed pathway 31 are all arranged on the upper end of top chock 3.
Cooling procedure of the present utility model is as follows: fluid cooling media flows into from feed pathway 31, then flows through the first communicating passage 11, first spiral cooling channel 41 successively, thus can cool lower bearing; Then the second communicating passage 12, annular cooling channel 33 is flowed through, thus can cool upper bearing (metal), then flow through third connecting passage 13, second spiral cooling channel 21, thus stator is cooled, finally flow through the 4th communicating passage 14, and flow out through liquid outlet channel 32.
Compared with prior art, the utility model is by employing first spiral cooling channel 41, annular cooling channel 33, the combination design of the second spiral cooling channel 21, fluid cooling media can be utilized lower bearing, upper bearing (metal), stator cools, thus its heat can be taken away, to reduce lower bearing, upper bearing (metal), the heat of stator impacts axle core, effectively can reduce the thermal expansion length of axle core, thus the machining accuracy of electro spindle can be improved, and, also can to upper bearing (metal), lower bearing, stator fully cools, the thermal deformation of upper bearing (metal) and lower bearing can be avoided excessive excessive with radial load, effectively can extend the service life of upper bearing (metal) and lower bearing, and can guarantee that the service behaviour of stator is more stable, in addition, by rationally arranging the first spiral cooling channel 41, annular cooling channel 33, the annexation of the second spiral cooling channel 21, also can be formed and first cool lower bearing, cool upper bearing (metal) again, finally cool the cooling order of stator, and because lower bearing is closer to workpiece to be machined, and upper bearing (metal) directly contacts with axle core with lower bearing, and stator passes through rotor indirect transfer heat to axle core, thus, the utility model is to lower bearing, upper bearing (metal), the priority of these three part cooling orders of stator, be dependent on the size that this three parts affect the machining accuracy of electro spindle, can further improve the machining accuracy of electro spindle, in addition, by adopting copper inner sleeve 2, can heat-transfer rate be improved, and contribute to the integral rigidity protecting body 1.
Above-mentioned embodiment is only preferred embodiment of the present utility model; can not limit the scope of the utility model protection with this, change and the replacement of any unsubstantiality that those skilled in the art does on basis of the present utility model all belong to the utility model scope required for protection.
Claims (7)
1. the cooling structure of electro spindle, comprises body, stator, upper bearing (metal), the lower bearing be arranged in body bottom; It is characterized in that: this cooling structure also comprises the inner sleeve be arranged in body, is arranged on the top chock of body upper end, the lower overcoat be sleeved on body bottom; Described stator is arranged in inner sleeve, and described upper bearing (metal) is arranged in top chock; The feed pathway described top chock is provided with liquid outlet channel, flowing into for fluid cooling media; Described body is provided with the first communicating passage, the second communicating passage, third connecting passage, the 4th communicating passage; The lower end of described top chock is inserted in body, and coordinates the annular cooling channel being formed with and flowing through for fluid cooling media between the lateral wall of top chock lower end and the madial wall of body; The first spiral cooling channel being formed and flowing through for fluid cooling media is coordinated between the madial wall of described lower overcoat and the lateral wall of body bottom; One end of described first spiral cooling channel is communicated with feed pathway by the first communicating passage, and the other end is communicated with annular cooling channel by the second communicating passage; The second spiral cooling channel being formed and flowing through for fluid cooling media is coordinated between the lateral wall of described inner sleeve and the madial wall of body; One end of described second spiral cooling channel is communicated with annular cooling channel by third connecting passage, and the other end is communicated with liquid outlet channel by the 4th communicating passage.
2. the cooling structure of electro spindle as claimed in claim 1, is characterized in that: described body is hollow form and two ends all have opening.
3. the cooling structure of electro spindle as claimed in claim 1, is characterized in that: be also provided with sealing ring between described body and top chock, described body is provided with the embedding slot for sealing ring setting-in.
4. the cooling structure of electro spindle as claimed in claim 1, is characterized in that: described top chock, inner sleeve, lower overcoat axially arranging successively from top to bottom along body.
5. the cooling structure of electro spindle as claimed in claim 1, is characterized in that: described inner sleeve is the copper inner sleeve adopting copper alloy to make.
6. the cooling structure of electro spindle as claimed in claim 1, is characterized in that: the liquid outlet of described liquid outlet channel, the inlet of feed pathway are all arranged on the upper end of top chock.
7. the cooling structure of electro spindle as claimed in claim 1, it is characterized in that: annular cooling channel is surrounded on the outside of top chock lower end, the first spiral cooling channel is surrounded on the outside of body lower end, and the second spiral cooling channel is surrounded on the outside of inner sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420850384.1U CN204381422U (en) | 2014-12-26 | 2014-12-26 | The cooling structure of electro spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420850384.1U CN204381422U (en) | 2014-12-26 | 2014-12-26 | The cooling structure of electro spindle |
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| Publication Number | Publication Date |
|---|---|
| CN204381422U true CN204381422U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420850384.1U Active CN204381422U (en) | 2014-12-26 | 2014-12-26 | The cooling structure of electro spindle |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107042420A (en) * | 2017-05-31 | 2017-08-15 | 东莞市显隆电机有限公司 | A kind of automatic tool changer handle of a knife concealed electric main shaft |
| CN108015303A (en) * | 2017-12-13 | 2018-05-11 | 广州市昊志机电股份有限公司 | A kind of permanent-magnet synchronous milling electro spindle |
| CN108302113A (en) * | 2018-01-29 | 2018-07-20 | 东莞市中镓半导体科技有限公司 | A kind of hollow shaft device with refrigerating function |
| CN108927534A (en) * | 2018-07-16 | 2018-12-04 | 深圳市爱贝科精密机械有限公司 | A kind of permanent magnet synchronization motor spindle device |
| CN108942398A (en) * | 2018-07-08 | 2018-12-07 | 深圳市爱贝科精密机械有限公司 | A kind of electro spindle cooling body |
| CN109262251A (en) * | 2018-11-06 | 2019-01-25 | 宜昌长机科技有限责任公司 | A kind of O-ring seals protection device for installing and assembly method |
| CN110460199A (en) * | 2018-05-07 | 2019-11-15 | 常州市特洛伊机电有限公司 | A kind of motor body and the electro spindle using the body |
| CN112792366A (en) * | 2021-01-29 | 2021-05-14 | 广州市昊志机电股份有限公司 | Electric spindle and machine tool |
| CN113695608A (en) * | 2021-08-19 | 2021-11-26 | 珠海格力电器股份有限公司 | Cooling device and electric spindle |
| CN113931937A (en) * | 2020-06-29 | 2022-01-14 | 新疆金风科技股份有限公司 | Bearing cooling system, bearing cooling method and wind generating set |
| CN116851792A (en) * | 2023-08-31 | 2023-10-10 | 山东豪迈数控机床有限公司 | Motorized spindle and preparation method thereof |
-
2014
- 2014-12-26 CN CN201420850384.1U patent/CN204381422U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107042420A (en) * | 2017-05-31 | 2017-08-15 | 东莞市显隆电机有限公司 | A kind of automatic tool changer handle of a knife concealed electric main shaft |
| CN108015303A (en) * | 2017-12-13 | 2018-05-11 | 广州市昊志机电股份有限公司 | A kind of permanent-magnet synchronous milling electro spindle |
| CN108302113A (en) * | 2018-01-29 | 2018-07-20 | 东莞市中镓半导体科技有限公司 | A kind of hollow shaft device with refrigerating function |
| CN110460199A (en) * | 2018-05-07 | 2019-11-15 | 常州市特洛伊机电有限公司 | A kind of motor body and the electro spindle using the body |
| CN108942398A (en) * | 2018-07-08 | 2018-12-07 | 深圳市爱贝科精密机械有限公司 | A kind of electro spindle cooling body |
| CN108927534A (en) * | 2018-07-16 | 2018-12-04 | 深圳市爱贝科精密机械有限公司 | A kind of permanent magnet synchronization motor spindle device |
| CN109262251A (en) * | 2018-11-06 | 2019-01-25 | 宜昌长机科技有限责任公司 | A kind of O-ring seals protection device for installing and assembly method |
| CN113931937A (en) * | 2020-06-29 | 2022-01-14 | 新疆金风科技股份有限公司 | Bearing cooling system, bearing cooling method and wind generating set |
| CN112792366A (en) * | 2021-01-29 | 2021-05-14 | 广州市昊志机电股份有限公司 | Electric spindle and machine tool |
| CN113695608A (en) * | 2021-08-19 | 2021-11-26 | 珠海格力电器股份有限公司 | Cooling device and electric spindle |
| CN116851792A (en) * | 2023-08-31 | 2023-10-10 | 山东豪迈数控机床有限公司 | Motorized spindle and preparation method thereof |
| CN116851792B (en) * | 2023-08-31 | 2023-11-03 | 山东豪迈数控机床有限公司 | Motorized spindle and preparation method thereof |
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