CN201726241U - Motorized spindle with cage motor stator cooling structure - Google Patents
Motorized spindle with cage motor stator cooling structure Download PDFInfo
- Publication number
- CN201726241U CN201726241U CN2010202833040U CN201020283304U CN201726241U CN 201726241 U CN201726241 U CN 201726241U CN 2010202833040 U CN2010202833040 U CN 2010202833040U CN 201020283304 U CN201020283304 U CN 201020283304U CN 201726241 U CN201726241 U CN 201726241U
- Authority
- CN
- China
- Prior art keywords
- motor stator
- bearing assembly
- casing
- main shaft
- cooling structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a motorized spindle with a cage motor stator cooling structure, which comprises a spindle assembly, a motor stator, a motor rotor, a cage body, a front bearing assembly and a rear bearing assembly, wherein the motor stator is arranged in the cage body, the motor rotor is sleeved on the spindle assembly, the spindle assembly is arranged in the motor stator and is supported on the cage body through the front bearing assembly and the rear bearing assembly, the cage body is provided with a cage cooling channel for cooling the motor stator, the front end of the cage body is provided with a front bearing block for the front bearing assembly to be installed, the front bearing block and the cage body are casted into a whole, one end of the motor stator, which is close to one end of the front bearing block, is provided with a stator side ring, and the force can act on the stator side ring from the front bearing block through a tube tooling to push the motor stator out of the rear end of the cage body. The motorized spindle with the cage motor stator cooling structure has the advantages of compact structure, convenient disassembly and good cooling effect.
Description
Technical field
The utility model relates to the main shaft functional part of mechanical manufacturing field high speed lathe, relates in particular to the electric main shaft of band mouse cage type motor stator cooling structure.
Background technology
With high cutting speed, high feed speed, high manufacturing accuracy is that the high speed and precision processing of principal character is one of four big advanced manufacturing technologies in the present age, is to make manufacturing technology produce the new and high technology that revolutionary character for the second time leaps continue Numeric Control Technology after.The high speed and precision machining tool not only has high production efficiency, and can improve the machining accuracy and the surface quality of part significantly.The electric main shaft of high-speed precise machine tool is as the Core Feature parts, and the height of its performance directly has influence on the overall development level of high speed and precision machining tool.The electricity main shaft is a kind of high-tech product that directly depends on the height electromechanical integration of technology such as bearing technology, accurate manufacturing and assembling.Its characteristics are, the function and the machine tool chief axis function of motor combined together from structure, have saved complicated middle transmission link, but have speed-regulating range width, the little Fast starting of moment of inertia and parking, be easy to realize advantages such as stepless speed regulation and accurate control.Along with the develop rapidly of modern manufacturing industry to high-speed, high accuracy, high efficiency direction, more and more higher to the performance requirement of machine tool chief axis unit, electric main shaft just progressively replaces traditional belt driven type mechanical main shaft, becomes the main flow structure of modern machine main shaft.
At present, the motor stator great majority of electricity main shaft adopt the helicla flute circulation type of cooling, but adopt the helicla flute type of cooling, need between electric machine casing and motor stator, increase a water shutoff cover, motor stator and water shutoff cover are solidified as a whole, during the dismounting motor stator, can adopt frock to act directly on water shutoff and put, make the dismounting of motor stator comparatively convenient, but the water shutoff cover will increase the radial dimension of electric main shaft, cause on the engineering main shaft casing oversize, its application is restricted, in addition, has spiral fluted water shutoff cover when packing motor stator into, the rubber seal at water shutoff cover two ends is easy to be caused seal failure by frictional force fail in shear.
Above-mentioned deficiency for fear of helicla flute water shutoff cover, the axial hole that often adopts on electric machine casing processing to be circle distribution on the engineering comes the cooling motor stator, mouse cage type motor stator cooling structure just, this cooling structure can dispense the water shutoff cover, thereby reduces the radial dimension of electric main shaft housing.But, owing to saved the water shutoff cover, caused the dismounting difficulty of motor stator to increase, be pressed into the convenience of housing and extrusion housing for motor stator, must make form separately to front-end bearing pedestal, rear bearing block and electric machine casing, motor stator just can adopt annulus sleeve frock to be pressed into or to extrude housing like this.
But this structure has been brought problem on the other hand again.The fore bearing of high-speed electric main shaft is owing to generate heat serious under the effect of processing load, for guaranteeing its heat radiation and prolonging its useful life, also need to carry out the external forced cooling, if and the form that adopts front-end bearing pedestal and electric machine casing to separate, cooling structure will be difficult to be provided with, simultaneously, the integral rigidity that front-end bearing pedestal is connected with electric machine casing will descend, the axiality of front-end bearing pedestal hole and motor stator also is difficult to guarantee that this will directly have influence on the Specifeca tion speeifications such as rotating accuracy of electric main shaft in disassembly process.
The utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, and the electric main shaft of the band mouse cage type motor stator cooling structure of a kind of compact conformation, easy accessibility, good cooling results is provided.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of electric main shaft with mouse cage type motor stator cooling structure, comprise spindle assemblies, motor stator, rotor, casing, fore bearing assembly and rear bearing assembly, described motor stator is sheathed in the casing, described rotor is sheathed on the spindle assemblies, described spindle assemblies places in the motor stator, and be supported on the casing by fore bearing assembly and rear bearing assembly, described casing is provided with the squirrel-cage cooling duct that is used for the cooling motor stator, described casing front end is provided with the front-end bearing pedestal that is used to install the fore bearing assembly, described front-end bearing pedestal and casing are cast into one, described motor stator is arranged with the stator side ring near an end of front-end bearing pedestal, can act on from the endoporus of described front-end bearing pedestal on the described stator side ring and with motor stator by the cylindrical shell frock and release from box back.
Described stator side ring one end is and the barrel of motor stator socket that the other end is the annulus portion that is blocked in the motor stator front end.
The endoporus aperture of described annulus portion is d, and the endoporus aperture of described front-end bearing pedestal is D, d＜D.
Described squirrel-cage cooling duct is made up of a plurality of axial holes of circumferentially evenly arranging along casing, and adjacent two axial holes are communicated with by the connectivity slot that is opened in tank ends, and at least one described axial hole is connected with external water source.
Described front-end bearing pedestal is provided with the fore bearing cooling duct, and described fore bearing cooling duct is connected with at least one described axial hole.
Described box back is equiped with the linear bearing assembly, be set with rear bearing block in the described linear bearing assembly, described rear bearing assembly is installed in the rear bearing block, described rear bearing block rear end is provided with spring bearer plate, is provided with the compression spring between the linear axis bearing of described spring bearer plate and described linear bearing assembly.
Compared with prior art, advantage of the present utility model is:
The electric main shaft of band mouse cage type motor stator cooling structure of the present utility model cools off motor stator by the squirrel-cage cooling duct is set on casing, employing provides supporting with the front-end bearing pedestal that casing is cast into one for the fore bearing assembly, this has not only saved the water shutoff cover, reduced the radial dimension of electric main shaft, and be convenient to guarantee the axiality of electric chief axis system, improve the rotating accuracy of electric main shaft, meanwhile, end at the close front-end bearing pedestal of motor stator is arranged with the stator side ring, thereby under the situation that the water shutoff cover is not set, even front-end bearing pedestal and casing are cast into one, also can dismantle motor stator by the stator side ring very easily, for improving the rotating accuracy of electric main shaft, the volume that reduces electric main shaft provides strong support.The annulus portion endoporus aperture of stator side ring is less than the endoporus aperture of front-end bearing pedestal, is convenient to that the endoporus from front-end bearing pedestal inserts the cylindrical shell frock when the dismounting motor stator, and the cylindrical shell frock is acted on the stator side ring, makes the convenient disassembly, quick of motor stator.The fore bearing cooling duct that is provided with on the front-end bearing pedestal is connected with the axial hole of casing upper cage formula cooling duct, makes the cooling structure of electric main shaft obtain simplifying, and is convenient to processing, saves cost.Rear bearing block is installed in box back by the linear bearing assembly, and spring bearer plate is set in the rear bearing block rear end, between the linear axis bearing of spring bearer plate and linear bearing assembly, the compression spring is set, but makes electric main shaft have the ability of compensating axial elasticity thermal deformation.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1;
Fig. 4 is the enlarged drawing of Fig. 1 cathetus bearing assembly and rear bearing assembly part.
Each label is represented among the figure:
1, spindle assemblies; 2, motor stator; 3, rotor; 4, casing; 5, fore bearing assembly; 6, rear bearing assembly; 7, stator side ring; 8, axial hole; 9, connectivity slot; 10, fore bearing cooling duct; 11, linear bearing assembly; 12, rear bearing block; 13, spring bearer plate; 14, compression spring; 41, front-end bearing pedestal; 71, barrel; 72, annulus portion; 111, linear axis bearing.
Embodiment
Fig. 1 to Fig. 4 shows a kind of electric main shaft embodiment with mouse cage type motor stator cooling structure of the present utility model, this electricity main shaft comprises spindle assemblies 1, motor stator 2, rotor 3, casing 4, fore bearing assembly 5 and rear bearing assembly 6, motor stator 2 is sheathed in the casing 4, rotor 3 is sheathed on the spindle assemblies 1, spindle assemblies 1 places in the motor stator 2, and be supported on the casing 4 by fore bearing assembly 5 and rear bearing assembly 6, casing 4 is provided with the squirrel-cage cooling duct that is used for cooling motor stator 2, casing 4 front ends are provided with the front-end bearing pedestal 41 that is used to install fore bearing assembly 5, front-end bearing pedestal 41 is cast into one with casing 4, this has not only saved the water shutoff cover, reduced the radial dimension of electric main shaft, and be convenient to guarantee the axiality of electric chief axis system, improve the rotating accuracy of electric main shaft, meanwhile, motor stator 2 is arranged with stator side ring 7 near an end of front-end bearing pedestal 41, thereby under the situation that the water shutoff cover is not set, even front-end bearing pedestal 41 and casing 4 are cast into one, also can dismantle by 7 pairs of motor stators 2 of stator side ring very easily, can act on from the endoporus of front-end bearing pedestal 41 on the stator side ring 7 by the cylindrical shell frock during dismounting, and motor stator 2 is released from casing 4 rear ends.The volume of the rotating accuracy that is designed to improve electric main shaft of stator side ring 7, the electric main shaft of reduction provides strong support.
In the present embodiment, stator side ring 7 one ends are the barrel 71 with motor stator 2 sockets, the other end is the annulus portion 72 that is blocked in motor stator 2 front ends, the endoporus aperture of annulus portion 72 is d, the endoporus aperture of front-end bearing pedestal 41 is D, d＜D, be convenient to dismounting during motor stator 2 endoporus from front-end bearing pedestal 41 insert the cylindrical shell frock, and the cylindrical shell frock acted on the stator side ring 7, make the convenient disassembly, quick of motor stator 2.The squirrel-cage cooling duct is made up of a plurality of axial holes 8 of circumferentially evenly arranging along casing 4, adjacent two axial holes 8 are communicated with by the connectivity slot 9 that is opened in casing 4 two ends, at least one axial hole 8 is connected with external water source, front-end bearing pedestal 41 is provided with fore bearing cooling duct 10, fore bearing cooling duct 10 is connected with at least one axial hole 8, fore bearing assembly 5 required cooling fluids are delivered to fore bearing cooling duct 10 by axial hole 8, this makes that the cooling structure of electric main shaft obtains simplifying, and is convenient to processing, saves cost.Casing 4 rear ends are equiped with linear bearing assembly 11, be set with rear bearing block 12 in the linear bearing assembly 11, rear bearing assembly 6 is installed in the rear bearing block 12, rear bearing block 12 rear ends are provided with spring bearer plate 13, be provided with compression spring 14 between the linear axis bearing 111 of spring bearer plate 13 and linear bearing assembly 11, rear bearing assembly 6 carries out pretension by the reaction force that compression spring 14 acts on the spring bearer plate 13, but compression spring 14 makes electric main shaft have the ability of compensating axial elasticity thermal deformation.
Above-mentioned is preferred embodiment of the present utility model, is not the utility model is done any pro forma restriction.Though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model.Any those of ordinary skill in the art, under the situation that does not break away from the technical solutions of the utility model scope, all can utilize the technology contents of above-mentioned announcement that technical solutions of the utility model are made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solutions of the utility model, all should drop in the scope of technical solutions of the utility model protection any simple modification, equivalent variations and modification that above embodiment did according to the utility model technical spirit.
Claims (7)
1. electric main shaft with mouse cage type motor stator cooling structure, comprise spindle assemblies (1), motor stator (2), rotor (3), casing (4), fore bearing assembly (5) and rear bearing assembly (6), described motor stator (2) is sheathed in the casing (4), described rotor (3) is sheathed on the spindle assemblies (1), described spindle assemblies (1) places in the motor stator (2), and be supported on the casing (4) by fore bearing assembly (5) and rear bearing assembly (6), it is characterized in that: described casing (4) is provided with the squirrel-cage cooling duct that is used for cooling motor stator (2), described casing (4) front end is provided with the front-end bearing pedestal (41) that is used to install fore bearing assembly (5), described front-end bearing pedestal (41) is cast into one with casing (4), described motor stator (2) is arranged with stator side ring (7) near an end of front-end bearing pedestal (41), can act on described stator side ring (7) from the endoporus of described front-end bearing pedestal (41) by the cylindrical shell frock and go up and motor stator (2) is released from casing (4) rear end.
2. the electric main shaft of band mouse cage type motor stator cooling structure according to claim 1, it is characterized in that: described stator side ring (7) one ends are and the barrel (71) of motor stator (2) socket that the other end is for being blocked in the annulus portion (72) of motor stator (2) front end.
3. the electric main shaft of band mouse cage type motor stator cooling structure according to claim 2 is characterized in that: the endoporus aperture of described annulus portion (72) is d, and the endoporus aperture of described front-end bearing pedestal (41) is D, d＜D.
4. according to the electric main shaft of each described band mouse cage type motor stator cooling structure in the claim 1 to 3, it is characterized in that: described squirrel-cage cooling duct is made up of a plurality of axial holes (8) of circumferentially evenly arranging along casing (4), adjacent two axial holes (8) are communicated with by the connectivity slot (9) that is opened in casing (4) two ends, and at least one described axial hole (8) is connected with external water source.
5. the electric main shaft of band mouse cage type motor stator cooling structure according to claim 4, it is characterized in that: described front-end bearing pedestal (41) is provided with fore bearing cooling duct (10), and described fore bearing cooling duct (10) is connected with at least one described axial hole (8).
6. according to the electric main shaft of each described band mouse cage type motor stator cooling structure in the claim 1 to 3, it is characterized in that: described casing (4) rear end is equiped with linear bearing assembly (11), be set with rear bearing block (12) in the described linear bearing assembly (11), described rear bearing assembly (6) is installed in the rear bearing block (12), described rear bearing block (12) rear end is provided with spring bearer plate (13), is provided with compression spring (14) between the linear axis bearing (111) of described spring bearer plate (13) and described linear bearing assembly (11).
7. the electric main shaft of band mouse cage type motor stator cooling structure according to claim 5, it is characterized in that: described casing (4) rear end is equiped with linear bearing assembly (11), be set with rear bearing block (12) in the described linear bearing assembly (11), described rear bearing assembly (6) is installed in the rear bearing block (12), described rear bearing block (12) rear end is provided with spring bearer plate (13), is provided with compression spring (14) between the linear axis bearing (111) of described spring bearer plate (13) and described linear bearing assembly (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202833040U CN201726241U (en) | 2010-08-06 | 2010-08-06 | Motorized spindle with cage motor stator cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202833040U CN201726241U (en) | 2010-08-06 | 2010-08-06 | Motorized spindle with cage motor stator cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201726241U true CN201726241U (en) | 2011-01-26 |
Family
ID=43494594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202833040U Expired - Lifetime CN201726241U (en) | 2010-08-06 | 2010-08-06 | Motorized spindle with cage motor stator cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201726241U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895170A (en) * | 2010-08-06 | 2010-11-24 | 湖南大学 | Electric main shaft with mouse cage type motor stator cooling structure |
| CN108788196A (en) * | 2018-06-21 | 2018-11-13 | 广东中聪智能装备有限公司 | A kind of synchronous servo electro spindle of precise numerical control machine |
-
2010
- 2010-08-06 CN CN2010202833040U patent/CN201726241U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895170A (en) * | 2010-08-06 | 2010-11-24 | 湖南大学 | Electric main shaft with mouse cage type motor stator cooling structure |
| CN108788196A (en) * | 2018-06-21 | 2018-11-13 | 广东中聪智能装备有限公司 | A kind of synchronous servo electro spindle of precise numerical control machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103047317A (en) | Internal star wheel overrun clutch | |
| CN102644590A (en) | Adjustable vane cell pump with stator comprising recesses | |
| CN102886534B (en) | High-speed and high-rigidity dynamic and static pressure built-in electric main shaft | |
| CN201726241U (en) | Motorized spindle with cage motor stator cooling structure | |
| CN201925177U (en) | Submersible through-flow pump with planetary gear reducing mechanism | |
| CN101060262A (en) | Built-in type hybrid motor spindle | |
| CN109773546A (en) | A kind of ball electric spindle | |
| CN101895170B (en) | Electric main shaft with mouse cage type motor stator cooling structure | |
| CN201044389Y (en) | Electric motor built-in type activity piezo-electricity principal axis | |
| CN202334080U (en) | Explosion-proof motor | |
| CN102126030B (en) | Direct-drive motorized spindle of lathe | |
| CN203778782U (en) | Motorized spindle for deep holes | |
| CN201042766Y (en) | Rotor cage type cooling structure of machine tool principal axis liquid sliding surface bearing | |
| CN101702544B (en) | Tilting-pad bearing built-in motor | |
| CN201906832U (en) | Main spindle device | |
| CN201674315U (en) | Motor end cover | |
| CN107877370B (en) | Double-end main shaft | |
| CN215009876U (en) | Permanent magnet motor driving device with forced air cooling structure | |
| CN201351633Y (en) | Novel mechanical seating auxiliary circulating pump | |
| CN101707418A (en) | Electric spindle arranging structure easy to replace motor and using method thereof | |
| CN201898403U (en) | High-speed electric main shaft supported by a plurality of groups of bearings | |
| CN201563017U (en) | Tilting-pad bearing built-in type motor | |
| CN104827116A (en) | Swing mechanism | |
| CN201414041Y (en) | Hub motor | |
| CN205927139U (en) | Machinery tool changing permanent magnetism synchronization electric main shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110126 Effective date of abandoning: 20120725 |