CN201167280Y - Step-by-step motor with prepressing components - Google Patents
Step-by-step motor with prepressing components Download PDFInfo
- Publication number
- CN201167280Y CN201167280Y CNU2008200036215U CN200820003621U CN201167280Y CN 201167280 Y CN201167280 Y CN 201167280Y CN U2008200036215 U CNU2008200036215 U CN U2008200036215U CN 200820003621 U CN200820003621 U CN 200820003621U CN 201167280 Y CN201167280 Y CN 201167280Y
- Authority
- CN
- China
- Prior art keywords
- guide portion
- face
- central block
- stepper motor
- preloading spring
- 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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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/0857—Arrangements for mechanically moving the whole head
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
- H02K37/10—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors of permanent magnet type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K37/00—Motors with rotor rotating step by step and without interrupter or commutator driven by the rotor, e.g. stepping motors
- H02K37/24—Structural association with auxiliary mechanical devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The utility model relates to the technical field of stepping motors, particularly to a stepping motor with a prestressed component, with the advantages of simple structure and easy fabrication. The stepping motor has a casing formed by two components, a stator coil and a magnetic coil with coil brace are installed inside the casing, a main rotor shaft provided with a rotor magnet on the periphery thereof is installed inside the magnetic coil, one end of the main rotor shaft is extended to form a driving screw rod, and spherical bodies are arranged on the end surfaces of the main rotor shaft and the driving screw rod; a guide portion for instilling a preloaded spring having a central block and taking an elastic supporting effect is integrally formed at one end of the casing, the spherical bodies are positioned between an installation groove on the end surface of the central block and the end surface of the main rotor shaft, and the driving screw rod is subjected to a push force along the axial line generated by the preloaded spring; and a buckle component is integrally formed on the outer side of the guide portion for buckling with the preloaded spring. The stepping motor provided in the utility model reduces the number of components, so as to simply structure; and needs not to be accompanied with other equipment and perform relevant management.
Description
Technical field:
The utility model relates to the stepper motor technical field, is meant a kind of stepper motor with precompressed member simple in structure, easily manufactured that has especially.
Background technology:
General stepper motor is to change the anglec of rotation according to input pulse, and changes its rotary speed according to the frequency change of input pulse.Stepper motor is applicable in automation equipment, and in floppy disk, hard disk drive or the CD drive as computer, wherein the main shaft of stepper motor is provided with drive screw is concentric.
Move in order to prevent that drive screw from producing at axial direction, many at present employing preloading springs or other likes overcome moving axially of drive screw, these technology are all open in a lot of documents, below are exactly the patent documentation that some of them have correlation technique.
In No. 0341286 patent document of Korea S's login utility model case, drive screw is installed over against the center of central block, and in order to reduce friction, a steel ball that is used for bearing is installed between central block central portion groove and drive screw end face.Central block is provided with preloading spring, and this preloading spring adopts resin or rubber to make.
In No. 0349046 patent document of Korea S's login utility model case, disclosed the main shaft end of adopting on the precompressed member supports drive screw, make the main shaft centerline direction produce a precompression by this precompressed member, with moving axially of restriction drive screw, this precompressed member adopts resin material to make.
Korea S speciallys permit in No. 0516719 patent document, has disclosed a kind of housing that uses magnetized metal to make, the magnetizing plate that the one end is pasted, and the repulsive interaction power by the homopolarity magnet makes central block have the thrust that promotes drive screw.
Above-described stepper motor prepressing device all adopts a plurality of members to constitute, and above-mentioned housing and central block need integrated welding to fix, so just cause in process of production, these parts all need designing mould to make, and housing and central block must carry out weld job, increase manufacturing procedure and relevant quality requirements so again, made production cost of products increase.In addition, the product that adopts above-mentioned structure needs equipment such as special fixture, bonding machine in production, assembling process, and this has not only increased the competition among enterprises burden, and subsidiary equipment also occupies certain working space, causes the raising of production cost.
Particularly in No. 0516721 patent documentation of special permission, be formed with a guide portion corresponding on its housing with the central block diameter, central block and spring member are set in this guide portion, make central block and spring member insert wherein, thereby make the precompressed thrust of central block generation to the drive screw direction of axis line.
In No. 0516721 patent documentation of above-mentioned special permission, stepper motor uses the central block that has rubber-like resin material to make, central block and spring member are installed in and form the precompressed member in the stepper motor. but it adopts other guiding elements to make the complex structureization of product, cause the preceding mould of housing moulding to use, must make new mould again, make the Mold Making expense improve, product cost increases.
The utility model content:
Technical problem to be solved in the utility model is exactly in order to overcome the problem in the said goods, proposes a kind of housing and guide portion to be adopted identical material, integrated stepper motor with precompressed member.Like this, make product except that housing, other motor part does not need to change, and has reduced the number of components of product, makes designs simplification, and need not to attach other equipment and manage accordingly yet.
Another technical problem to be solved in the utility model is exactly to make the structure that cooperates with preloading spring on the housing guide portion can variation, makes product can tackle different clients' different requirements.
For solving the problems of the technologies described above, the utility model has adopted following technical scheme: this stepper motor has the housing that two each and every one bodies form, the magnetic coil that stator coil and coil brace constitute is installed in housing, the main shaft that outer periphery is equipped with rotor magnet is installed in magnetic coil, main shaft one end has extended to form drive screw, is provided with the spheroid that is used for rolling bearing at the end face of main shaft, drive screw; The one-body molded guide portion that central block is installed and plays the preloading spring of resilient support that is useful on of an end on above-mentioned housing, above-mentioned spheroid produces along the thrust that plays axial line drive screw by preloading spring between the mounting groove and main shaft end face of central block end face; One-body molded being useful on preloading spring formation in the described guide portion outside buckles the hanging platform that is connected.
Described central block end face is a quadrangle with four arc chord angles, and one end is formed with the mounting groove that spheroid is installed; The guide portion that is used for the mounting center piece all coats this central block, and this guide portion comprises four guide surfaces and four arc chord angles.
Described central block end face is circular; The guide portion that is used for the mounting center piece all coats this central block, and the end face of this guide portion is a circle corresponding with central block.
Described central block end face is an octangle; The guide portion that is used for the mounting center piece all coats this central block, and the end face of this guide portion is an octangle corresponding with central block.
Described guide portion is divided into the plurality of separate wall.
Described guide portion end face portion outwards forms 180 degree bendings, becomes the hanging platform that cooperates with preloading spring.
The surface of described guide portion end face portion forms outside protuberance, becomes the hanging platform that cooperates with preloading spring.
Described guide portion end face portion is cut out, the outwards outstanding hanging platform that cooperates with preloading spring that forms of this end face portion that is cut.
Described guide portion end face portion is cut out, and this end face portion that is cut outwards is bent into 90 degree, forms the hanging platform that cooperates with preloading spring.
Described guide portion end face portion outwards forms the bending of secondary 90 degree, becomes the hanging platform that cooperates with preloading spring.
Stepper motor according to the technique scheme making with precompressed member, the one-body molded guide portion that is used for the mounting center piece on its housing, and housing and guide portion adopt identical material one-body molded, make product integrated like this, and make other product of product to change and just can use on the utility model, not only can reduce number of components, oversimplify motor structure, and need not other attendant equipments, and relevant fixture is made and management, reduces production costs.In addition, the utility model makes the structure that cooperates with preloading spring on the housing guide portion can variation, makes product can tackle different clients' different requirements.
Description of drawings:
Fig. 1 is a sectional structure chart of the present utility model;
Fig. 2 is the decomposing schematic representation of central block, preloading spring and housing among the utility model embodiment one;
Fig. 3～Fig. 8 is the side view front view of other embodiment middle shells of the utility model.
Explanation to the major part symbol of drawing in the accompanying drawing
10a, 10b: housing 12: guide portion
14: preloading spring 14a: lug boss
14b: elastic bumps 16: central block
16a, 28a: installing hole 18: coil
20: coil brace 22: drive screw
22a: main shaft 24: rotor magnet
26: support 28: axle supports
30: spheroid 121 guide surfaces
122: separate wall 123～127: hanging platform
Embodiment:
Below in conjunction with accompanying drawing stepper motor of the present utility model is elaborated.
Fig. 1 is a sectional structure chart of the present utility model; Fig. 2 is the decomposing schematic representation of central block, preloading spring and housing among the utility model embodiment one; Fig. 3 is the side view and the front view of Fig. 2 middle shell.
See Fig. 1,2,3, step in the present embodiment, tight motor adopted pair of shells 10a, 10b, the magnetic coil that its internal fixation has rotor coil 18 and coil brace 20 to constitute, and in magnetic coil, be inserted with main shaft 22a, the periphery of this main shaft 22a is installed with rotor magnet 24, and main shaft 22a one end face has extended to form drive screw 22.
Be formed with guide portion 12 on the housing 10a, be inserted with central block 16 and preloading spring 14 in this guide portion 12, the elastic force that produces by this preloading spring 14 promotes drive screw 22, thereby produces preload pressure.The housing 10b of above-mentioned opposite side is provided with the support 26 of support drive screw rod 22, and these support 26 1 ends are provided with axle and support 28, can smooth and easyly rotate to make drive screw 22.
Above-mentioned drive screw 22 1 ends obtain to support by the central blocks 16 that are arranged on housing 10a and go up in the guide portion 12, and the axle of its other end by support 26 supports 28 and obtain to support.In central block 16 and axle support 28, be respectively arranged with installing hole 16a, 28a,, reduce friction when making drive screw 22 rotations to be used to that spheroid 30 is installed.
Above-mentioned housing 10a and the guide portion of himself 12 adopt identical material to make, and are installed in the material that preloading spring 14 also adopts and housing 10a the is same making that is used to produce preload pressure in the guide portion 12.
In addition, in the above-mentioned guide portion 12, central block 16 all is positioned at guide portion, and the in-profile of the exterior contour of central block 16 and guide portion 12 is the approximate quadrangle with four arc chord angles.
Above-mentioned preloading spring 14 structures are answered the contour shape of corresponding guide portion 12, closely cooperate to make preloading spring form in guide portion 12.As shown in Figure 3, be formed with hanging platform 123, so that preloading spring 14 cooperates with its formation grab in the guide portion outer.In addition, can not influence its cooperation even this hanging platform 123 is not a complete end face yet, as shown in Figure 4, in the present embodiment on the guide portion 12 only four end faces outwards carry out 180 and be bent to form hanging platform 123.
In addition, form the grab syndeton with preloading spring 14, also can adopt other modes to realize on the guide portion in order to satisfy on the guide portion 12, as shown in Figure 5, the directly outwards outstanding hanging platform 125 that forms on the guide surface 121 of this approximate tetragonal guide portion 12.
Upper end as note guide surface 121 on Fig. 6 is cut open, and directly outwards becomes 90 to be bent to form hanging platform 126 its upper end then.
As shown in Figure 7, guide surface 121 upper ends are cut open, and cut-away portions is outwards strutted the protuberance that forms secondary 90 degree bendings, form hanging platform 127.
Be different from the foregoing description, that explained among Fig. 8 is another kind of embodiment, and this guide portion 12 is divided into four separation walls 122, and promptly with respect to the foregoing description, the arc chord angle of guide portion 12 partly is cut.Adopt this separation wall construction like this, can outwards disperse by separating between the wall 122 gap, and form circulation, improve the product radiating effect with the air in the external world if the magnetic coil of stator coil 18 and coil brace 20 combinations produces heat.
As mentioned above, the side of housing 10a forms guide portion 12, the two is one-body molded, and the hanging platform 123～127 that its end face forms can pass through the press-moulding die moulding, and manufacturing process is very simple, so just two parts is reduced to parts, make simplifying the structure of motor, and do not need to be provided with respectively the mould of housing and guide portion, do not need other auxiliary moulds and related die pipe yet, reduced expenses.
Preloading spring 14 corresponding guide sections 12 contour shapes, its open end are formed with the lug boss 14a that a pre-hanging platform cooperates, and are formed with an elastic bumps 14b that can produce preload pressure at the center.
It is according to the above description, existing that use is elaborated to the utility model:
At first, the housing 10a that has two relative parts to form, the magnetic coil that stator coil 18 combines with coil brace 20 is installed in the 10b, is provided with the drive screw 22 that an end forms main shaft 22a in magnetic coil, rotor magnet 24 is fixed on the main shaft 22a.Fixed-type on above-mentioned housing 10b have pair drive screw 22 to form the support 26 that supports, and on the mounting groove 18a of corresponding drive screw 22 ends on the support 26 steel ball 30 is installed, and supports 28 with the axle that forms drive screw.
Then, spheroid 30, central block 16 and preloading spring 14 are installed successively in the guide portion 12 of housing 10a, spheroid 30 is positioned on the central block 16 on the mounting groove 16a on the corresponding main shaft 22a.Preloading spring 14 forms grab by its jut 14a and guide portion 12 outer hanging platforms and is connected, and the elastic force projection 14b generation elastic force in the middle of this moment preloading spring 14 act on the central block 16, and to the thrust of main shaft, drive screw 22 formation precompressed.
The utility model adopts said structure, by the motor-driven screw direction of axis line being applied a preload pressure, makes drive screw obtain to support, and prevents that it from horizontal displacement occurring.
Claims (10)
1. stepper motor with precompressed member, it comprises: have housing that two each and every one bodies form the magnetic coil that stator coil and coil brace constitute is installed in housing, the main shaft that outer periphery is equipped with rotor magnet is installed in magnetic coil, main shaft one end has extended to form drive screw, is provided with the spheroid that is used for rolling bearing at the end face of main shaft, drive screw; It is characterized in that: the one-body molded preloading spring guide portion that central block is installed and plays resilient support that is useful on of an end on above-mentioned housing, above-mentioned spheroid produces along the thrust that plays axial line drive screw by preloading spring between the mounting groove and main shaft end face of central block end face; One-body molded being useful on preloading spring formation in the described guide portion outside buckles the hanging platform that is connected.
2. the stepper motor with precompressed member according to claim 1 is characterized in that: described central block end face is a quadrangle with four arc chord angles, and one end is formed with the mounting groove that spheroid is installed; The guide portion that is used for the mounting center piece all coats this central block, and this guide portion comprises four guide surfaces and four arc chord angles.
3. the stepper motor with precompressed member according to claim 1 is characterized in that: described central block end face is for circular; The guide portion that is used for the mounting center piece all coats this central block, and the end face of this guide portion is a circle corresponding with central block.
4. the stepper motor with precompressed member according to claim 1 is characterized in that: described central block end face is an octangle; The guide portion that is used for the mounting center piece all coats this central block, and the end face of this guide portion is an octangle corresponding with central block.
5. the stepper motor with precompressed member according to claim 1 is characterized in that: described guide portion is divided into the plurality of separate wall.
6. the stepper motor with precompressed member according to claim 1 is characterized in that: described guide portion end face portion outwards forms 180 degree bendings, becomes the hanging platform that cooperates with preloading spring.
7. the stepper motor with precompressed member according to claim 1 is characterized in that: the surface of described guide portion end face portion forms outside protuberance, becomes the hanging platform that cooperates with preloading spring.
8. the stepper motor with precompressed member according to claim 1 is characterized in that: described guide portion end face portion is cut out, the outwards outstanding hanging platform that cooperates with preloading spring that forms of this end face portion that is cut.
9. the stepper motor with precompressed member according to claim 1 is characterized in that: described guide portion end face portion is cut out, and this end face portion that is cut outwards is bent into 90 degree, forms the hanging platform that cooperates with preloading spring.
10. the stepper motor with precompressed member according to claim 1 is characterized in that: described guide portion end face portion outwards forms the bending of secondary 90 degree, becomes the hanging platform that cooperates with preloading spring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2020070011180 | 2007-07-06 | ||
| KR2020070011180U KR200444938Y1 (en) | 2007-07-06 | 2007-07-06 | Stepping motor with preload structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201167280Y true CN201167280Y (en) | 2008-12-17 |
Family
ID=40192671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200036215U Expired - Lifetime CN201167280Y (en) | 2007-07-06 | 2008-01-22 | Step-by-step motor with prepressing components |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR200444938Y1 (en) |
| CN (1) | CN201167280Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315752A (en) * | 2010-07-01 | 2012-01-11 | 株式会社模雅特 | Stepping motor |
| CN105262288A (en) * | 2015-11-09 | 2016-01-20 | 哈尔滨电气动力装备有限公司 | A shield motor rotor pack aligning tool |
| WO2019242211A1 (en) * | 2018-06-22 | 2019-12-26 | 深圳市道通智能航空技术有限公司 | Motor, pan-tilt zoom device and unmanned aerial vehicle |
-
2007
- 2007-07-06 KR KR2020070011180U patent/KR200444938Y1/en not_active IP Right Cessation
-
2008
- 2008-01-22 CN CNU2008200036215U patent/CN201167280Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102315752A (en) * | 2010-07-01 | 2012-01-11 | 株式会社模雅特 | Stepping motor |
| CN102315752B (en) * | 2010-07-01 | 2013-12-18 | 株式会社模雅特 | Stepping motor |
| CN105262288A (en) * | 2015-11-09 | 2016-01-20 | 哈尔滨电气动力装备有限公司 | A shield motor rotor pack aligning tool |
| CN105262288B (en) * | 2015-11-09 | 2018-09-21 | 哈尔滨电气动力装备有限公司 | Shielding motor rotor lamination alignment tools |
| WO2019242211A1 (en) * | 2018-06-22 | 2019-12-26 | 深圳市道通智能航空技术有限公司 | Motor, pan-tilt zoom device and unmanned aerial vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20090000313U (en) | 2009-01-12 |
| KR200444938Y1 (en) | 2009-06-16 |
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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: 20081217 |
|
| CX01 | Expiry of patent term |