CN103780007A - Outer rotation type straight-drive mechanism with screw reciprocating motion - Google Patents
Outer rotation type straight-drive mechanism with screw reciprocating motion Download PDFInfo
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- CN103780007A CN103780007A CN201210396370.2A CN201210396370A CN103780007A CN 103780007 A CN103780007 A CN 103780007A CN 201210396370 A CN201210396370 A CN 201210396370A CN 103780007 A CN103780007 A CN 103780007A
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- screw rod
- rotation type
- stator department
- outward rotation
- swivel nut
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Abstract
The invention provides an outer rotation type straight-drive mechanism with screw reciprocating motion, for breaking through the blind point in the prior art. A thread sleeve in threaded connection with the a crew in a coaxial mode is directly taken as the formation of a rotor of an outer rotation type torque motor such that the number of the parts is reduced, the overall size is reduced, and the manufacturing process of the assembling and processing is simplified at the same time.
Description
Technical field
The present invention is relevant with drive technology, particularly about the reciprocating outward rotation type Zhi Qu of a kind of screw rod mechanism.
Background technology
At present, with regard to take motor with regard to the known technology that power drive screw rod carries out linear reciprocal movement, all, between motor force-output shaft and a swivel nut, suitable actuated element is set, the powerhouse ground connection providing by motor is rotated this swivel nut, and order is according to this carried out linear reciprocating motion with this screw rod that this swivel nut is coaxially spirally connected.
Particularly, refer to the known technology shown in Fig. 1, it is the tubular rotor 2 with motor 1, via a gear part 3 and swivel nut 4 interlocks, accordingly, when this rotor 2 is rotated, this swivel nut 4 is to rely on to be synchronously rotated via the transmission of this gear part 3, thereby the screw rod 5 that order and this swivel nut 4 are coaxially spirally connected is carried out linear reciprocating motion.
And be different from above-mentioned by gear-driven known technology, there is another known technology as shown in Figure 2, it is to make a swivel nut 6 directly coaxially be fixed in one end of a tubular rotor 7, and when rotor 7 is rotating, by the affixed structure between itself and swivel nut 6, this swivel nut 6 is synchronously rotated, with so that the screw rod 8 being coaxially spirally connected with this swivel nut 6 is carried out linear reciprocating motion.
Above-mentioned known art in tradition by outside train of reduction gears indirectly drive screw carry out the technology of linear reciprocal movement, therefore can be because having omitted the formation of outside train of reduction gears, and screw rod is incorporated among motor, and reached the effect that reduces overall volume and power transmission loss, but with regard to existing known technology, owing to still sticking to swivel nut and screw rod, the two belongs to the technical blind spot of same assembly, and swivel nut is considered as is the composed component being independent of outside motor, under this technology blind spot, shown in above-mentioned prior art, must be by a suitable drive technology, make motor be driven swivel nut to be rotated, no matter above-mentioned drive technology etc. is by serial connection each other between gear bridle joint or two element, all derive part and too much caused the loaded down with trivial details shortcoming of assembling processing, the cost that consumption is manufactured on foot.
Summary of the invention
Main purpose of the present invention is to provide the reciprocating outward rotation type Zhi Qu of a kind of screw rod mechanism, it is the blind spot of breaking through known technology, and swivel nut to be spirally connected with this screw coaxial, directly form as the rotor of outward rotation type torque motor, reduce according to this part quantity, dwindle overall volume and simplify simultaneously the fabrication schedule of assembling processing.
For achieving the above object, the present invention is by the following technical solutions:
The reciprocating outward rotation type Zhi Qu of a kind of screw rod mechanism, includes:
One outward rotation type torque motor, has a stator department, and one is surrounded on the rotor portions of all sides of described stator department;
One screw rod group, has a tubulose swivel nut, and a screw rod is to be coaxially bolted in described swivel nut;
Described stator department is in the form of a ring, and described screw coaxial is extended through wherein;
Described swivel nut is to have a tubulose axle body, is to be coaxially set in outside the periphery anchor ring of described stator department, and a screwed pipe body, is to be coaxially positioned on the axial one end of described axle body, and is spirally connected with the described screw rod shaft that stretches out described stator department; And,
Most magnet that described rotor portions has are to be fixed in respectively on interior all anchor rings of described axle body, and with the periphery anchor ring of described stator department in opposite directions and be separated by and come.
Described screw rod is to be Ai Kemu screw rod.
Described screw rod is to be ball screw.
The internal diameter of described axle body is the internal diameter that is greater than described screwed pipe body, and therebetween forms an annular shoulder face, and makes described shoulder face and the axial one end of described stator department end face be separated by coming.
The reciprocating outward rotation type Zhi Qu of described screw rod mechanism, also includes an angle resolver, is to be positioned between described shoulder face and the axial one end of described stator department end face.
The invention has the beneficial effects as follows: the outward rotation type Zhi Qu mechanism of reciprocating cutter is compared to known technology, to have there is part still less, simultaneously by the technology directly driving, more can reduce the man-hour that assembling machining need expend, simultaneously, the motor configuration of outward rotation type, on the winding of coil owing to winding the line by Automated winding equipment, more can reduce artificial demand, maintain good product quality simultaneously, in addition, more can obtain good position feedback signal by this angle resolver, contribute to product to be applied in the higher technical field of required precision, the applied wheel steering system of for example, shown in known technology belongs to suitable example, also be applied in the Automation Industry that needs straight line start.
Accompanying drawing explanation
Fig. 1 is the cutaway view of a known technology.
Fig. 2 is the cutaway view of another known technology.
Fig. 3 is the combination stereogram of a preferred embodiment of the present invention.
Fig. 4 is the cutaway view of a preferred embodiment of the present invention.
Drawing reference numeral: 10: the reciprocating outward rotation type Zhi Qu of screw rod mechanism; 20: outward rotation type torque motor; 21: stator department; 22: rotor portions; 221: magnet; 30: screw rod group; 31: screw rod; 32: swivel nut; 321: axle body; 322: screwed pipe body; 323: shoulder face; 40: angle resolver.
Embodiment
Below only with embodiment, the enforcement aspect that the present invention is possible is described, however not in order to limit the category of institute of the present invention wish protection, first give chat bright.
Below, lift with a preferred embodiment of the present invention, and coordinate graphic being described further.
Refer to shown in Fig. 3 and Fig. 4, the reciprocating outward rotation type Zhi Qu of institute's screw rod that provides mechanism 10 in a preferred embodiment of the present invention, it is mainly to have comprised to have an outward rotation type torque motor 20, a screw rod group 30 and an angle resolver 40.
This outward rotation type torque motor 20 is to have one to form the tubular stator portion 21 in variable magnetic field after coil electricity, and one form the rotor portions 22 of fixed magnetic field by most magnet 221, is to be located in the periphery of this stator department 21.
This screw rod group 30 is take Ai Kemu screw technique as its illustration in the present embodiment, but be not limited with it, it is also the formation of known ball screw, particularly, this screw rod group 30 is the screw rods 31 with a suitable length, and one coaxially wears the swivel nut 32 being bolted on this screw rod 31.
In addition, this angle resolver 40 is known solution hornwork in the present embodiment.
Except shown in the technology contents identical with known technology, technical characterictic of the present invention is mainly to make this screw rod group 30 and this outward rotation type torque motor 20 have a shared element textural, further make this screw rod group 30 in known technology, only have a technology contents of passive position, change into the technology contents that simultaneously has whip hand concurrently as shown in the present, specifically, the present invention has more comprised to have following technical characterictic, wherein:
This stator department 21 is in the form of a ring, and makes coil be able to form on the periphery position of this stator department 21 ring-types via automatic winding equipment, is coaxially set among this stator department 21 with seasonal this screw rod 31; And,
This swivel nut 32 also includes the tubulose axle body 321 of a suitable internal diameter, coaxially to be set in outside the periphery anchor ring of this stator department 21, the screwed pipe body 322 that one internal diameter is less than this axle body 321 is to be coaxially positioned on this axial one end of axle body 321, one 323, annular shoulder face is between this screwed pipe body 322 and this axle body 321, and be separated by and come with these stator department 21 axial one end anchor rings, the space that formed is therebetween handy for this angle resolver 40 is set, further, each composed component of this swivel nut 32 is the person of being formed in one;
22 of this rotor portions are that respectively this magnet 221 is amplexiformed respectively on the interior all anchor rings that are fixedly arranged on this axle body 321 in an orderly manner, and with this stator department 21 in opposite directions and be separated by and come, in other words, this swivel nut 32 is the proper limits for speech or action of having crossed over different component, one with this torque motor 20 as this screw rod group 30 simultaneously, and make this rotor portions 22 directly take this axle body 321 as its gyroaxis, and directly drive this swivel nut 32 to be rotated, drive according to this this screw rod 31 axially to carry out linear reciprocating motion along self.
And by the composition of above-mentioned member, the reciprocating outward rotation type Zhi Qu of this screw rod mechanism 10 is compared to known technology, to have there is part still less, simultaneously by the technology directly driving, more can reduce the man-hour that assembling machining need expend, simultaneously, the motor configuration of outward rotation type, on the winding of coil owing to winding the line by Automated winding equipment, more can reduce artificial demand, maintain good product quality simultaneously, in addition, more can obtain good position feedback signal by this angle resolver, contribute to product to be applied in the higher technical field of required precision, the applied wheel steering system of for example, shown in known technology belongs to suitable example, also be applied in the Automation Industry that needs straight line start.
Claims (5)
1. the reciprocating outward rotation type Zhi Qu of a screw rod mechanism, includes:
One outward rotation type torque motor, has a stator department, and one is surrounded on the rotor portions of all sides of described stator department;
One screw rod group, has a tubulose swivel nut, and a screw rod is to be coaxially bolted in described swivel nut;
It is characterized in that:
Described stator department is in the form of a ring, and described screw coaxial is extended through wherein;
Described swivel nut is to have a tubulose axle body, is to be coaxially set in outside the periphery anchor ring of described stator department, and a screwed pipe body, is to be coaxially positioned on the axial one end of described axle body, and is spirally connected with the described screw rod shaft that stretches out described stator department; And,
Most magnet that described rotor portions has are to be fixed in respectively on interior all anchor rings of described axle body, and with the periphery anchor ring of described stator department in opposite directions and be separated by and come.
2. the reciprocating outward rotation type Zhi Qu of screw rod according to claim 1 mechanism, is characterized in that, described screw rod is to be Ai Kemu screw rod.
3. the reciprocating outward rotation type Zhi Qu of screw rod according to claim 1 mechanism, is characterized in that, described screw rod is to be ball screw.
4. the reciprocating outward rotation type Zhi Qu of screw rod according to claim 1 mechanism, it is characterized in that, the internal diameter of described axle body is the internal diameter that is greater than described screwed pipe body, and therebetween forms an annular shoulder face, and makes described shoulder face and the axial one end of described stator department end face be separated by coming.
5. the reciprocating outward rotation type Zhi Qu of screw rod according to claim 1 mechanism, is characterized in that, also includes an angle resolver, is to be positioned between described shoulder face and the axial one end of described stator department end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210396370.2A CN103780007A (en) | 2012-10-18 | 2012-10-18 | Outer rotation type straight-drive mechanism with screw reciprocating motion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210396370.2A CN103780007A (en) | 2012-10-18 | 2012-10-18 | Outer rotation type straight-drive mechanism with screw reciprocating motion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103780007A true CN103780007A (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210396370.2A Pending CN103780007A (en) | 2012-10-18 | 2012-10-18 | Outer rotation type straight-drive mechanism with screw reciprocating motion |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6035951A (en) * | 1983-07-16 | 1985-02-23 | フエスト‐マシーネンフアブリーク ゴツトリープ シユトール | Electric linear drive device with outer rotor type yoke |
| US4828360A (en) * | 1986-08-02 | 1989-05-09 | Sony Corporation | Drive motor for camera lens assembly |
| US5912520A (en) * | 1996-03-13 | 1999-06-15 | Unisia Jecs Corporation | Feed-screw unit and electric motor using same |
| US6453761B1 (en) * | 2000-11-16 | 2002-09-24 | Thomson Saginaw Ball Screw Company, L.L.C. | Direct attachment electric motor operated ball nut and screw linear actuator |
| US20080179971A1 (en) * | 2007-01-31 | 2008-07-31 | Honeywell International, Inc. | Actuator assembly including a single axis of rotation locking member |
| CN101453145A (en) * | 2007-12-07 | 2009-06-10 | 联塑(杭州)机械有限公司 | Electric pushing device |
| CN101815885A (en) * | 2007-08-01 | 2010-08-25 | Skf公司 | Linear actuators |
-
2012
- 2012-10-18 CN CN201210396370.2A patent/CN103780007A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6035951A (en) * | 1983-07-16 | 1985-02-23 | フエスト‐マシーネンフアブリーク ゴツトリープ シユトール | Electric linear drive device with outer rotor type yoke |
| US4828360A (en) * | 1986-08-02 | 1989-05-09 | Sony Corporation | Drive motor for camera lens assembly |
| US5912520A (en) * | 1996-03-13 | 1999-06-15 | Unisia Jecs Corporation | Feed-screw unit and electric motor using same |
| US6453761B1 (en) * | 2000-11-16 | 2002-09-24 | Thomson Saginaw Ball Screw Company, L.L.C. | Direct attachment electric motor operated ball nut and screw linear actuator |
| US20080179971A1 (en) * | 2007-01-31 | 2008-07-31 | Honeywell International, Inc. | Actuator assembly including a single axis of rotation locking member |
| CN101815885A (en) * | 2007-08-01 | 2010-08-25 | Skf公司 | Linear actuators |
| CN101453145A (en) * | 2007-12-07 | 2009-06-10 | 联塑(杭州)机械有限公司 | Electric pushing device |
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Application publication date: 20140507 |