CN202978565U - Motor with rotor shaft moving axially - Google Patents
Motor with rotor shaft moving axially Download PDFInfo
- Publication number
- CN202978565U CN202978565U CN 201220700963 CN201220700963U CN202978565U CN 202978565 U CN202978565 U CN 202978565U CN 201220700963 CN201220700963 CN 201220700963 CN 201220700963 U CN201220700963 U CN 201220700963U CN 202978565 U CN202978565 U CN 202978565U
- Authority
- CN
- China
- Prior art keywords
- armature spindle
- axially movable
- inner ring
- rotor
- motor
- 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
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Abstract
The utility model relates to a motor with a rotor shaft moving axially. The motor comprises a stator arranged in a case and a rotor arranged in the stator, two ends of the rotor shaft of the rotor are supported by a first bearing to be extended outside the case, the length of an armature of the rotor is larger than that of an iron core of the stator, and a shaft driving device driving the rotor shaft to move axially is arranged at the tail end of the rotor shaft outside the case. The motor can realize feeding of a grinding head and a cutter through axial moving of the rotor shaft, so that cost for building a working platform is saved, feeding accuracy is high, and production energy consumption is substantially lowered.
Description
Technical field
The utility model relates to technical field of motors, relates in particular to the axially movable motor of a kind of armature spindle.
Background technology
In a lot of occasions of machining, when the logical cutting head of motor band or grinding machine head processing work, need between workpiece and motor axially relatively close along motor, with cutting or grinding work piece progressively.Usually the mode that realizes above-mentioned relative motion has two kinds: one, and motor maintains static, and workbench drives the feeding of workpiece rectilinear motion; Its two, workpiece is motionless, the feeding of workbench drive motor rectilinear motion.
The selection of this dual mode depends primarily on the relative size of workpiece and motor, when workpiece is smaller and more exquisite, and travelling workpiece normally; When the larger mobile inconvenience of workpiece, normally the base with motor is fixed on a workbench, makes motor near workpiece by modes such as screw mandrel, screw rods.
In fact, it is comparatively easy to operate when workpiece is less, when the larger mobile motor of workpiece is more convenient, in following defective is often:
The workbench volume is large, and quality is heavy, and feed consumption is many, and complex structure has increased volume and the production cost of complete machine; Actuating force is large, and energy consumption is large, and production cost is high; Be subjected to the restriction of the cascaded coordination precision such as screw rod and nut, screw mandrel and the spirit of living, the precision of motor straight line forward and back motion is limited.
The utility model content
Technical problem to be solved in the utility model is to propose the axially movable motor of a kind of armature spindle, this motor has the axially movable characteristics of armature spindle, can not need to just can realize the feeding of bistrique, cutter by workbench, not only saved the cost of building platform, and feed accuracy is high, has significantly reduced the energy consumption of producing.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
The axially movable motor of a kind of armature spindle, comprise and be located at the casing internal stator, be located at the rotor in stator, the armature spindle two ends of described rotor are supported by clutch shaft bearing and are stretched out outside described casing, it is characterized in that: the armature length of described rotor is greater than the core length of described stator, and the outer armature spindle tail end of described casing has the axially movable axial brake device of drives rotor shaft axle.
Described axial brake device comprises the sleeve of the tail end that is connected to described casing, the dwang of head side face and sleeve lining threaded engagement and drive the actuator that described dwang rotates, described head be connected the tail end of armature spindle and connect by the second bearing.
The tail end of described sleeve seals by capping, and described dwang passes through this capping.
The outer ring of described the second bearing is inlaid in the interior inner chamber of described head and interference fit, and its inner ring fixed cover is located on described armature spindle.
Described dwang afterbody also is provided with turning handle.
Described clutch shaft bearing comprises inner ring, outer ring and a plurality of rolling element of being located between this inner ring and outer ring, has the rolling surface that is cylinder on the outer peripheral face of described inner ring, and when described inner ring moved axially with axle, described rolling element rolled with described rolling surface all the time and coordinates.
The head of described casing, tail end respectively form a described inner ring of confession and slide on wherein sliding cavity, and the sliding cavity of this head end has end wall, and described inner ring is during by described end wall block.
Described rolling element is roller.
Compared with prior art, the beneficial effects of the utility model are: have the axially movable characteristics of armature spindle, can not need to just can realize the feeding of bistrique, cutter by workbench, not only saved the cost of building platform, and feed accuracy is high, has significantly reduced the energy consumption of producing.
Description of drawings
By the description of its exemplary embodiment being carried out below in conjunction with accompanying drawing, the above-mentioned feature and advantage of the utility model will become apparent and easily understand.
Fig. 1 is the utility model embodiment overall structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, so that technical staff's of the same trade understanding:
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, so that technical staff's of the same trade understanding:
As shown in Figure 1, label represents respectively:
Manual handle 1, actuator 2, capping 3, dwang 4, sleeve 5, dwang head 6, angular contact bearing 7, rear end cap 8, outer ring 9, inner ring 10, sliding cavity 11, armature spindle 12, stator 13, rotor 14, support 15, sliding cavity 16, outer ring 17, roller 18, front end housing 19, inner ring 20, end wall 21, protection waveform sheath 22, grinding wheel stand 23, protective baffle plate 24, controller 25.
Shown in Figure 1, the feeding motor in the present embodiment comprises casing, and this casing is made of support 15 and the rear end cap 8 and the front end housing 19 that are assemblied in support 15 both ends open places.Be provided with the armature spindle 12 that can move axially between primary importance and the second place in casing, be fixed on the rotor 14 on described armature spindle 12 and be set in stator 13 outside described rotor 14.Wherein, stator 13 fixedly is assemblied on the inwall of support 15, described armature spindle 12 is rotatably supported by two clutch shaft bearings, and extend respectively outside the casing of described motor at its two ends, an end that stretches out front end housing 19 of armature spindle 12 consists of the output of this motor, be fixed with grinding wheel stand 23 on this output, be used for installing emery wheel.In addition, outer protection waveform sheath 22 and the protective baffle plate 24 of also being provided with of motor front end cover 19 is for the protection of armature spindle 12 outputs and grinding wheel stand 23.
These two clutch shaft bearings are the roller bearing of special tectonic, take the clutch shaft bearing that is positioned at the motor head end as example: this clutch shaft bearing by fixed cover be located at the inner ring 20 on described armature spindle 12, outer ring 17 and a plurality of roller 18 of being located between inner ring 20 and outer ring 17 that fixedly is assemblied on described front end housing 19 consists of.Be provided with raceway in outer ring 17, have the rolling surface that is cylinder on the outer peripheral face of inner ring 20, when described inner ring 20 moved axially with armature spindle 12, described roller 18 rolled with described rolling surface all the time and coordinates.That is to say, the width of this rolling surface should be not less than the axially movable range of armature spindle 12 (namely spacing between primary importance and the second place).Same, the clutch shaft bearing structure that is positioned at the motor tail end is identical with said structure, is made of the inner ring 10 and a plurality of roller of being located between inner ring 10 and outer ring 9 that are fixed on outer ring 9 on rear end cap 8, be set on armature spindle 12.
With above-mentioned clutch shaft bearing structural correspondence be, the head of casing, tail end respectively form a described inner ring of confession and slide on wherein sliding cavity, two sliding cavities all have the sidewall of cylinder, coordinate with the inner ring rolling surface gap in it, difference is: the sliding cavity 16 of motor head end has the end wall 21 for block inner ring 20, during by this end wall 21 block, described armature spindle 12 is positioned at described primary importance when inner ring 20.The sliding cavity 11 that is positioned at the motor tail end does not have the end wall of block inner ring 10.
For guaranteeing the motor normal operation, when armature spindle 12 moved axially, the iron core of stator 13 all was positioned on the armature of described rotor 14 all the time, that is to say that the armature length of rotor 14 is greater than the core length of stator 13.The core length that saying more specifically, the armature length of described rotor 14 should be not less than described stator 13 adds the range (namely spacing between primary importance and the second place) of armature spindle 12.
In addition, the tail end of armature spindle 12 is connected with axial brake device, is used for driving described rotor 12 axles and axially moves between primary importance and the second place.Axial brake device comprises that sleeve 5, the second bearing, dwang 4 and the actuator 2 of the tail end that is connected to motor case consist of.
Wherein: sleeve 5 is hollow round tubular, and its inwall arranges internal thread, and its tail end is by capping 3 sealings.Described dwang 4 passes through this capping 3, and head 6 side faces that are positioned at sleeve 5 have the external screw thread that coordinates with sleeve 5 inner threads, and the precession direction of this dwang 4 is along the axis setting of described armature spindle 12.The second bearing is angular contact bearing 7, and the outer ring of angular contact bearing 7 is inlaid in the interior inner chamber of described head 6 and interference fit, and the inner ring fixed cover of angular contact bearing 7 is located on described armature spindle 12.When rotation during dwang 4, head 6 is along screw thread precession or the back-out of sleeve 5, and then drives angular contact bearing 7 and move axially, and armature spindle 12 is synchronous to be moved axially with angular contact bearing 7.Because armature spindle 12 is supported by clutch shaft bearing, the structure of clutch shaft bearing allows inner ring relative outer ring to move axially, thereby does not hinder moving axially of armature spindle 12.Simultaneously, by said structure as can be known, during by this capping 3 block, armature spindle 12 is positioned at the second place when the head 6 of dwang 4.
Actuator 2 is used for driving described dwang 4 around the central axis rotation, and this actuator 2 can adopt motor, cylinder or other mechanical power source and assist with corresponding transmission mechanisms such as worm-and-wheel gears to realize driving the purpose of these dwang 4 rotations.
When reality was used, actuator 2 connected upper controller 25, by the amount of feeding of the program control described armature spindle 12 of controller 25.
Due to this class actuator and the structure by controller program control driving part for those skilled in the art's technological means of commonly seeing, therefore do not repeat them here
Above-mentioned by the amount of feeding of controller 25 automatic programme control armature spindles 12 except this, can also adopt the feeding of manual mode Control Shaft, to be combined with automatic control scheme.Be exactly specifically, the afterbody of described dwang 4 also is provided with turning handle 1, by rotating the rotation of the manual control dwang 4 of this turning handle 1, can manually control the feeding of armature spindle 12.
Thus, by rotation manual handle 1 or utilize controller 25 automatically to control, can realize controlling manually or automatically the axial feed of armature spindle 12.
Abovely be elaborated for utility model of the present utility model intention and execution mode by embodiment; but the utility model one of ordinary skill in the art be appreciated that; the above embodiment of the utility model is only one of preferred embodiment of the present utility model; be the length restriction; here can not all execution modes of particularize; any enforcement that can embody the utility model claim technical scheme is all in protection range of the present utility model.
Claims (8)
1. axially movable motor of armature spindle, comprise and be located at the casing internal stator, be located at the rotor in stator, the armature spindle two ends of described rotor are supported by clutch shaft bearing and are stretched out outside described casing, it is characterized in that: the armature length of described rotor is greater than the core length of described stator, and the outer armature spindle tail end of described casing has the axially movable axial brake device of drives rotor shaft axle.
2. the axially movable motor of armature spindle according to claim 1, it is characterized in that: described axial brake device comprises the sleeve of the tail end that is connected to described casing, the dwang of head side face and sleeve lining threaded engagement and drive the actuator that described dwang rotates, described head be connected the tail end of armature spindle and connect by the second bearing.
3. the axially movable motor of armature spindle according to claim 2, it is characterized in that: the tail end of described sleeve seals by capping, and described dwang passes through this capping.
4. the axially movable motor of armature spindle according to claim 3 is characterized in that: the outer ring of described the second bearing is inlaid in inner chamber in described head and interference fit, and its inner ring fixed cover is located on described armature spindle.
5. the axially movable motor of armature spindle according to claim 4, it is characterized in that: described dwang afterbody also is provided with turning handle.
6. according to claim 1-5 axially movable motors of the described armature spindle of any one, it is characterized in that: described clutch shaft bearing comprises inner ring, outer ring and a plurality of rolling element of being located between this inner ring and outer ring, has the rolling surface that is cylinder on the outer peripheral face of described inner ring, when described inner ring moved axially with axle, described rolling element rolled with described rolling surface all the time and coordinates.
7. the axially movable motor of armature spindle according to claim 6 is characterized in that: the head of described casing, tail end respectively form a described inner ring of confession and slide on wherein sliding cavity, and the sliding cavity of this head end has end wall.
8. the axially movable motor of armature spindle according to claim 7, it is characterized in that: described rolling element is roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220700963 CN202978565U (en) | 2012-12-17 | 2012-12-17 | Motor with rotor shaft moving axially |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220700963 CN202978565U (en) | 2012-12-17 | 2012-12-17 | Motor with rotor shaft moving axially |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978565U true CN202978565U (en) | 2013-06-05 |
Family
ID=48519589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220700963 Expired - Lifetime CN202978565U (en) | 2012-12-17 | 2012-12-17 | Motor with rotor shaft moving axially |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978565U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681810A (en) * | 2017-11-17 | 2018-02-09 | 上海德驱驰电气有限公司 | Bistrique direct driving motor |
-
2012
- 2012-12-17 CN CN 201220700963 patent/CN202978565U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681810A (en) * | 2017-11-17 | 2018-02-09 | 上海德驱驰电气有限公司 | Bistrique direct driving motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |
|
| CX01 | Expiry of patent term |