CN219004607U - Cooling structure, electric spindle and machine tool - Google Patents
Cooling structure, electric spindle and machine tool Download PDFInfo
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- CN219004607U CN219004607U CN202223258339.0U CN202223258339U CN219004607U CN 219004607 U CN219004607 U CN 219004607U CN 202223258339 U CN202223258339 U CN 202223258339U CN 219004607 U CN219004607 U CN 219004607U
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- 238000001816 cooling Methods 0.000 title claims abstract description 247
- 239000000110 cooling liquid Substances 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims description 14
- 230000000694 effects Effects 0.000 description 10
- 239000012809 cooling fluid Substances 0.000 description 9
- 238000003754 machining Methods 0.000 description 8
- 238000009792 diffusion process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model provides a cooling structure, an electric spindle and a machine tool, wherein the cooling structure comprises a shaft core, a rotor, a bearing and a bearing sleeve, wherein the rotor and the bearing are sleeved on the shaft core, the bearing is arranged in the bearing sleeve, and a first cooling channel is arranged on the circumferential outer side surface of the bearing sleeve; the cooling structure further includes: the cooling component is sleeved on the shaft core and positioned between the rotor and the bearing, the cooling component is provided with a second cooling channel, an inlet of the second cooling channel is used for introducing cooling liquid, and an outlet of the second cooling channel is communicated with the first cooling channel, so that the cooling liquid flows into the first cooling channel from the outlet after passing through the second cooling channel.
Description
Technical Field
The utility model relates to the technical field of numerical control machine tools, in particular to a cooling structure, an electric spindle and a machine tool.
Background
The high-speed motorized spindle generally selects an external circulation cooling or axial cooling mode to cool the motor and the bearing, the cooling structure is simple, the optimal cooling effect is not easy to achieve, heat of a motor rotor cannot be blocked to be transmitted to the bearing inner ring through the shaft core, so that the temperature of the bearing inner ring is increased, when the spindle is in heavy cutting and high rotating speed, the heating values of the motor and the bearing are large, the whole heat increase of the spindle can seriously influence the operation precision and the processing precision quality of the spindle and the thermal elongation of the shaft core, and finally the processing quality of a machine tool is seriously influenced.
In the prior art, an internal and external cooling structure of a high-speed motorized spindle is provided, but the cooling structure of the front end of the spindle is single in form, the cooling effect of a bearing is not good enough, and the front bearing can be cooled only by means of an annular cooling groove on a bearing seat at the front end. The front bearing cannot be cooled on the side surface, the heat of the motor rotor cannot be prevented from diffusing to the front end, the cooling effect of the front bearing is limited, the machining precision of the main shaft under heavy cutting and high rotating speed is difficult to ensure, and the thermal elongation of the shaft core of the main shaft is difficult to control.
Disclosure of Invention
The utility model mainly aims to provide a cooling structure, an electric spindle and a machine tool, so as to solve the problem that the cooling effect of the high-speed electric spindle cooling structure in the prior art is poor.
In order to achieve the above object, according to one aspect of the present utility model, there is provided a cooling structure including a shaft core, a rotor, a bearing, and a bearing housing, both of which are sleeved on the shaft core, the bearing being disposed in the bearing housing, a first cooling passage being provided at a circumferential outer side surface of the bearing housing; the cooling structure further includes: the cooling component is sleeved on the shaft core and positioned between the rotor and the bearing, the cooling component is provided with a second cooling channel, an inlet of the second cooling channel is used for introducing cooling liquid, and an outlet of the second cooling channel is communicated with the first cooling channel, so that the cooling liquid flows into the first cooling channel from the outlet after passing through the second cooling channel.
Further, the bearing has a first end face and a second end face which are sequentially arranged in an axial direction thereof, and at least part of the end faces of the cooling member is fitted to the first end face.
Further, the second cooling passage includes a first passage extending in a radial direction of the cooling member, a first end of the first passage forming an inlet, a second passage, and a third passage, the second end of the first passage communicating with the second passage; the second passage is an annular passage and extends in the circumferential direction of the cooling member; the third passage extends in a radial direction of the cooling member, a first end of the third passage communicates with the second passage, and a second end of the third passage forms an outlet.
Further, the cooling member includes: the cooling sleeve bush is sleeved on the shaft core; the cooling sleeve is sleeved on the cooling sleeve bushing; the first channel and the third channel are both arranged on the cooling jacket, and the second channel is arranged on the cooling jacket and/or the cooling jacket bushing.
Further, the axis of the first channel and the axis of the second channel are coincident or parallel.
Further, the second passage is a groove structure provided on the circumferential outer side surface of the cooling jacket bushing, and the notch of the groove structure is respectively communicated with the second end of the first passage and the first end of the third passage.
Further, the first cooling channel is a spiral flow channel, and the spiral flow channel is arranged around the circumferential outer side surface of the bearing sleeve.
Further, the cooling structure further includes: the shaft sleeve is sleeved on the bearing sleeve, and the first cooling channel is arranged on the bearing sleeve and/or the shaft sleeve; the shaft sleeve is provided with a liquid outlet channel which is communicated with one end of the first cooling channel away from the outlet.
Further, the cooling structure further includes: the shaft sleeve is sleeved on the cooling component; the shaft sleeve is provided with a liquid inlet channel which is communicated with an inlet of the second cooling channel.
According to another aspect of the present utility model there is provided an electric spindle comprising the cooling structure described above.
According to a further aspect of the utility model there is provided a machine tool comprising an electric spindle, the electric spindle being as described above.
By applying the technical scheme of the utility model, the cooling structure comprises a shaft core, a rotor, a bearing sleeve and a cooling part, wherein a first cooling channel is arranged on the circumferential outer side surface of the bearing sleeve, and the cooling part is provided with a second cooling channel. The cooling liquid flows into the second cooling channel from the inlet of the second cooling channel and then flows out from the outlet of the second cooling channel, and as the cooling component is positioned between the rotor and the bearing, the second cooling channel arranged on the cooling component cools the bearing on one side surface and blocks the forward diffusion of the heat of the rotor on the other side, namely blocks the heat of the rotor from diffusing to the bearing; the cooling liquid continuously flows forwards after flowing out of the outlet of the second cooling channel and enters the first cooling channel, and is mainly used for cooling the bearing, and the cooling structure is used for greatly improving the cooling of the bearing, so that the temperature rise is effectively reduced, and the running precision and the machining precision of the electric spindle are improved; in addition, the cooling structure can cool the bearing and the shaft core at the side surface, thereby reducing the thermal elongation of the electric spindle and improving the machining precision and quality of the machine tool.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:
fig. 1 shows a schematic view of an embodiment of a cooling structure according to the utility model.
Wherein the above figures include the following reference numerals:
10. a shaft core; 20. a rotor; 30. a bearing; 40. a bearing sleeve; 41. a first cooling channel; 50. a cooling member; 51. a second cooling channel; 511. a first channel; 512. a second channel; 513. a third channel; 52. a cooling jacket bushing; 53. a cooling jacket; 54. a shaft sleeve; 541. a liquid outlet channel; 542. and a liquid inlet channel.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The utility model provides a cooling structure, please refer to fig. 1, which comprises a shaft core 10, a rotor 20, a bearing 30 and a bearing sleeve 40, wherein the rotor 20 and the bearing 30 are sleeved on the shaft core 10, the bearing 30 is arranged in the bearing sleeve 40, and a first cooling channel 41 is arranged on the circumferential outer side surface of the bearing sleeve 40; the cooling structure further includes: the cooling part 50 is sleeved on the shaft core 10 and is positioned between the rotor 20 and the bearing 30, the cooling part 50 is provided with a second cooling channel 51, an inlet of the second cooling channel 51 is used for introducing cooling liquid, and an outlet of the second cooling channel 51 is communicated with the first cooling channel 41, so that the cooling liquid flows into the first cooling channel 41 from the outlet after passing through the second cooling channel 51.
The cooling structure of the present utility model includes a shaft core 10, a rotor 20, a bearing 30, a bearing housing 40, and a cooling member 50, the bearing housing 40 being provided with a first cooling passage 41 on a circumferential outer side surface thereof, the cooling member 50 having a second cooling passage 51. The cooling liquid flows into the second cooling channel 51 from the inlet of the second cooling channel 51 and then flows out from the outlet of the second cooling channel 51, and since the cooling component 50 is located between the rotor 20 and the bearing 30, the second cooling channel 51 provided on the cooling component 50 on the one hand laterally cools the bearing 30 and on the other hand blocks the forward diffusion of the heat of the rotor 20, i.e. blocks the heat of the rotor 20 from diffusing to the bearing 30; the cooling liquid continuously flows forwards after flowing out of the outlet of the second cooling channel 51 and enters the first cooling channel 41, and is mainly used for cooling the bearing 30, and the cooling structure is used for greatly improving the cooling of the bearing 30, so that the temperature rise is effectively reduced, and the running precision and the machining precision of the electric spindle are improved; in addition, the cooling structure can cool the bearing and the shaft core at the side surface, thereby reducing the thermal elongation of the electric spindle and improving the machining precision and quality of the machine tool.
Specifically, as shown in fig. 1, the cooling structure includes a plurality of bearings 30, each of the plurality of bearings 30 being located on a side of the cooling member 50 away from the rotor 20, the plurality of bearings 30 being disposed in order along the axial direction of the shaft core 10.
In the present embodiment, the bearing 30 has a first end face and a second end face which are disposed in this order in the axial direction thereof, and at least part of the end faces of the cooling member 50 is fitted to the first end face.
Specifically, at least part of the end surface of the cooling member 50 is fitted to the first end surface of the bearing 30, ensuring that the cooling fluid can cool the bearing 30 through the first end surface of the bearing 30 when the cooling fluid flows into the second cooling passage 51 of the cooling member 50 from the inlet, and improving the cooling effect.
In the present embodiment, the second cooling passage 51 includes a first passage 511, a second passage 512, and a third passage 513, the first passage 511 extending in the radial direction of the cooling member 50, a first end of the first passage 511 forming an inlet, a second end of the first passage 511 communicating with the second passage 512; the second passage 512 is an annular passage and extends in the circumferential direction of the cooling member 50; the third passage 513 extends in a radial direction of the cooling member 50, a first end of the third passage 513 communicates with the second passage 512, and a second end of the third passage 513 forms an outlet.
Specifically, the cooling liquid flows in from the inlet of the second cooling passage 51, flows in the second passage 512 along the first passage 511, flows in the third passage 513 via the second passage 512, and flows out from the outlet of the second cooling passage 51, so that the bearing 30 can be cooled from the side on the one hand, and the forward diffusion of the heat of the rotor 20 can be blocked on the other hand. The restriction of the coolant flow path by the first passage 511, the second passage 512, and the third passage 513 makes the coolant flow path longer, enabling sufficient cooling of the bearing 30 and the shaft core 10.
In the present embodiment, the cooling member 50 includes: a cooling jacket sleeve 52 sleeved on the shaft core 10; a cooling jacket 53 sleeved on the cooling jacket bushing 52; the first passage 511 and the third passage 513 are each provided on the cooling jacket 53, and the second passage 512 is provided on the cooling jacket 53 and/or the cooling jacket bushing 52.
Specifically, the cooling jacket bushing 52 is connected to the cooling jacket 53 by screws, and then integrally connected to the bearing housing 40 by screws; the cooling fluid flows in from the inlet of the second cooling channel 51, flows along the first channel 511 on the cooling jacket 53 into the annular second channel 512 on the cooling jacket 53 and/or the cooling jacket bushing 52, flows in via the second channel 512 into the third channel 513 on the cooling jacket 53, and finally flows out from the outlet of the second cooling channel 51, on the one hand, the bearing 30 can be cooled from the side and, on the other hand, the forward diffusion of the heat of the rotor 20 can be blocked.
In the present embodiment, the axis of the first passage 511 and the axis of the second passage 512 are coincident or disposed in parallel.
Specifically, the axis of the first channel 511 and the axis of the second channel 512 are coincident or parallel, so that the cooling liquid flowing into the annular second channel 512 from the first channel 511 can cool the bearing 30 from the side uniformly along the second channel 512, and the uneven cooling of the bearing 30 due to uneven distribution of the cooling liquid in the circumferential direction of the cooling member is prevented, and the cooling effect is prevented from being affected.
In the present embodiment, the second passage 512 is a groove structure provided on the circumferential outer side surface of the cooling jacket sleeve 52, and the notches of the groove structure communicate with the second end of the first passage 511 and the first end of the third passage 513, respectively.
Specifically, the cooling fluid flows in from the inlet, along the first channel 511 from the slot into the groove structure on the circumferential outer side of the cooling jacket sleeve 52, from the slot into the third channel 513, and finally out from the outlet, on the one hand the cooling fluid may flow along the circumferential outer side of the cooling jacket sleeve 52 to sufficiently cool the side of the bearing 30, and on the other hand the heat of the rotor 20 may be blocked from spreading forward.
In the present embodiment, the first cooling passage 41 is a spiral flow passage provided around the circumferential outer side surface of the bearing housing 40.
Specifically, the first cooling passage 41 is provided around the circumferential outer side surface of the bearing housing 40, and the spiral flow passage is structured so that the cooling liquid can sufficiently cool the bearing 30 from the circumferential outer side of the bearing housing 40 after the cooling liquid flows into the first cooling passage 41.
In this embodiment, the cooling structure further includes: the shaft sleeve 54, the shaft sleeve 54 is sleeved on the bearing sleeve 40, and the first cooling channel 41 is arranged on the bearing sleeve 40 and/or the shaft sleeve 54; the sleeve 54 is provided with a liquid outlet channel 541, and the liquid outlet channel 541 is communicated with one end of the first cooling channel 41 away from the outlet.
Specifically, the cooling liquid flows forward after flowing out from the outlet of the second cooling passage 51, enters the first cooling passage 41 on the bearing housing 40 and/or the shaft housing 54, forms a uniform cooling flow path, that is, the first cooling passage 41, mainly for cooling the bearing 30, flows out from the first cooling passage 41 into the liquid outlet passage 541 on the shaft housing 54, and finally flows out from the outlet on the shaft housing 54.
In this embodiment, the cooling structure further includes: a sleeve 54 fitted over the cooling member 50; the sleeve 54 is provided with a liquid inlet passage 542, and the liquid inlet passage 542 communicates with the inlet of the second cooling passage 51.
Specifically, the cooling fluid flows in from the inlet of the sleeve 54, enters the second cooling passage 51 along the fluid inlet passage 542 on the sleeve 54, and then flows out from the outlet of the second cooling passage 51, to cool the bearing 30 laterally on the one hand, and to block the forward diffusion of the heat of the rotor 20 on the other hand. Specifically, the cooling structure further includes a stator cooling jacket and a stator, which are respectively connected and fixed with the shaft sleeve 54 through set screws in the circumferential direction.
Specifically, the rotor 20 is interference-connected to the shaft core 10.
The utility model also provides an electric spindle, which comprises the cooling structure in the embodiment.
The utility model also provides a machine tool, which comprises an electric spindle, wherein the electric spindle is the electric spindle in the embodiment.
In particular, as shown by the arrows in fig. 1, the cooling fluid flows in from the inlet of the sleeve 54, enters the second cooling channel 51 along the inlet channel 542 on the sleeve 54, and then flows out from the outlet of the second cooling channel 51, thereby forming a uniform cooling fluid flow path, i.e. the second channel 512, which cools the bearing 30 laterally on one hand and blocks the forward diffusion of the heat of the rotor 20 on the other hand; the cooling fluid flows forward from the outlet of the second cooling channel 51, enters the first cooling channel 41, forms a uniform cooling channel therein, is mainly used for cooling the bearing 30, flows into the liquid outlet channel 541 on the shaft sleeve 54, and finally exits from the outlet on the shaft sleeve 54. The reciprocating circulation is performed in this way, and a front-end double-flow-channel cooling structure comprising the first cooling channel 41 of the bearing sleeve 40, the second cooling channel 51 formed between the cooling sleeve bush 52 and the cooling sleeve 53 is formed at the front end of the electric spindle, so that the temperature rise control of the whole electric spindle can be ensured, the temperature of the bearing 30 is also completely controlled, the temperature rise of the electric spindle is effectively reduced, the final machining precision is improved, the thermal elongation of the shaft core is effectively reduced, and the problem that the cooling effect of the high-speed electric spindle cooling structure in the prior art is poor is solved.
The embodiment of the cooling structure solves the following technical problems:
1. the cooling structure of the utility model can completely and effectively control the temperature rise of the electric spindle, effectively block the heat of the motor rotor 20, and greatly improve the cooling of the bearing 30 by transmitting the heat to the inner ring of the bearing 30 through the shaft core 10, thereby effectively reducing the temperature rise and improving the running precision and the processing precision of the electric spindle.
2. The utility model can simultaneously realize the cooling of the motor and the bearing 30 through the cooling structure at the front end of the electric spindle, thereby effectively reducing the heating value of the motor, effectively blocking the conduction of heat to the shaft core 10 and the bearing 30 and cooling.
3. The utility model provides a cooling structure suitable for a high-speed motorized spindle, which realizes double cooling of the motorized spindle bearing 30 and solves the problems of poor cooling effect and single cooling form of the bearing 30; the cooling structure can cool the bearing 30 and the shaft core 10 at the side surface, thereby effectively blocking the heat of the motor rotor 20 from being transmitted to the inner ring of the bearing 30 through the shaft core 10, reducing the integral temperature rise of the electric spindle, improving the integral cooling effect, reducing the thermal elongation of the electric spindle and improving the processing precision and quality of a machine tool.
From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:
the cooling structure of the present utility model includes a shaft core 10, a rotor 20, a bearing 30, a bearing housing 40, and a cooling member 50, the bearing housing 40 being provided with a first cooling passage 41 on a circumferential outer side surface thereof, the cooling member 50 having a second cooling passage 51. The cooling liquid flows into the second cooling channel 51 from the inlet of the second cooling channel 51 and then flows out from the outlet of the second cooling channel 51, and since the cooling component 50 is located between the rotor 20 and the bearing 30, the second cooling channel 51 provided on the cooling component 50 on the one hand laterally cools the bearing 30 and on the other hand blocks the forward diffusion of the heat of the rotor 20, i.e. blocks the heat of the rotor 20 from diffusing to the bearing 30; the cooling liquid continuously flows forwards after flowing out of the outlet of the second cooling channel 51 and enters the first cooling channel 41, and is mainly used for cooling the bearing 30, and the cooling structure is used for greatly improving the cooling of the bearing 30, so that the temperature rise is effectively reduced, and the running precision and the machining precision of the electric spindle are improved; in addition, the cooling structure can cool the bearing and the shaft core at the side surface, thereby reducing the thermal elongation of the electric spindle and improving the machining precision and quality of the machine tool.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of being practiced otherwise than as specifically illustrated and described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (11)
1. The utility model provides a cooling structure, includes axle core (10), rotor (20), bearing (30) and bearing housing (40), rotor (20) with bearing (30) are all overlapped and are established on axle core (10), bearing (30) set up in bearing housing (40), characterized in that, the circumference lateral surface of bearing housing (40) is provided with first cooling channel (41); the cooling structure further includes:
the cooling component (50) is sleeved on the shaft core (10) and is positioned between the rotor (20) and the bearing (30), the cooling component (50) is provided with a second cooling channel (51), an inlet of the second cooling channel (51) is used for introducing cooling liquid, and an outlet of the second cooling channel (51) is communicated with the first cooling channel (41), so that the cooling liquid flows into the first cooling channel (41) from the outlet after passing through the second cooling channel (51).
2. The cooling structure according to claim 1, wherein the bearing (30) has a first end face and a second end face disposed in this order in an axial direction thereof, and at least a part of the end faces of the cooling member (50) are fitted to the first end face.
3. The cooling structure according to claim 1, characterized in that the second cooling channel (51) comprises a first channel (511), a second channel (512) and a third channel (513), the first channel (511) extending in a radial direction of the cooling element (50), a first end of the first channel (511) forming the inlet, a second end of the first channel (511) being in communication with the second channel (512);
the second passage (512) is an annular passage and extends in a circumferential direction of the cooling member (50);
the third channel (513) extends in a radial direction of the cooling member (50), a first end of the third channel (513) communicates with the second channel (512), and a second end of the third channel (513) forms the outlet.
4. A cooling structure according to claim 3, characterized in that the cooling member (50) comprises:
a cooling jacket sleeve (52) sleeved on the shaft core (10);
a cooling jacket (53) sleeved on the cooling jacket bushing (52);
the first channel (511) and the third channel (513) are both arranged on the cooling jacket (53), and the second channel (512) is arranged on the cooling jacket (53) and/or the cooling jacket bushing (52).
5. The cooling structure according to claim 4, characterized in that the axis of the first channel (511) and the axis of the second channel (512) are coincident or arranged in parallel.
6. The cooling structure according to claim 4, characterized in that the second channel (512) is a groove structure provided on the circumferential outer side of the cooling jacket bushing (52), the notches of the groove structure being in communication with the second end of the first channel (511) and the first end of the third channel (513), respectively.
7. The cooling structure according to any one of claims 1 to 6, characterized in that the first cooling channel (41) is a spiral flow channel, which is arranged around the circumferential outer side of the bearing housing (40).
8. The cooling structure according to any one of claims 1 to 6, characterized in that the cooling structure further comprises:
a shaft sleeve (54), wherein the shaft sleeve (54) is sleeved on the bearing sleeve (40), and the first cooling channel (41) is arranged on the bearing sleeve (40) and/or the shaft sleeve (54);
the shaft sleeve (54) is provided with a liquid outlet channel (541), and the liquid outlet channel (541) is communicated with one end of the first cooling channel (41) away from the outlet.
9. The cooling structure according to any one of claims 1 to 6, characterized in that the cooling structure further comprises:
a sleeve (54) which is sleeved on the cooling component (50);
the shaft sleeve (54) is provided with a liquid inlet channel (542), and the liquid inlet channel (542) is communicated with the inlet of the second cooling channel (51).
10. An electric spindle comprising a cooling structure according to any one of claims 1 to 9.
11. A machine tool comprising an electric spindle, characterized in that the electric spindle is an electric spindle according to claim 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223258339.0U CN219004607U (en) | 2022-12-02 | 2022-12-02 | Cooling structure, electric spindle and machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223258339.0U CN219004607U (en) | 2022-12-02 | 2022-12-02 | Cooling structure, electric spindle and machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219004607U true CN219004607U (en) | 2023-05-12 |
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ID=86244551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223258339.0U Active CN219004607U (en) | 2022-12-02 | 2022-12-02 | Cooling structure, electric spindle and machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219004607U (en) |
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2022
- 2022-12-02 CN CN202223258339.0U patent/CN219004607U/en active Active
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