CN2753042Y - Micro-synchronous rotor - Google Patents
Micro-synchronous rotor Download PDFInfo
- Publication number
- CN2753042Y CN2753042Y CN 200420095462 CN200420095462U CN2753042Y CN 2753042 Y CN2753042 Y CN 2753042Y CN 200420095462 CN200420095462 CN 200420095462 CN 200420095462 U CN200420095462 U CN 200420095462U CN 2753042 Y CN2753042 Y CN 2753042Y
- Authority
- CN
- China
- Prior art keywords
- commentaries
- cavity
- core
- synchronous motor
- print seat
- 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 micro-synchronous rotor which comprises a circular magnet sheathed with a rotating shaft which is formed by combining and assembling two segments, wherein the upper part is a turning core with a gear, the lower part is a turning core seat sheathed with the circular magnet, and the turning core is connected with the turning core seat by a clamping buckle. The middle part of the turning core is the gear, a base of the turning core is provided with a clamping piece, and the middle of the turning core is a cavity. The part of the turning core, on which the cavity is arranged, extends downward to form a pipe joint protruding out of the base. The upper part of the corresponding turning core is provided with a clamping column, the center of the turning core seat is a cavity which is communicated with that of the turning core by the pipe joint to form a motor rotating shaft path. The rotating shaft is divided into two segments to be manufactured by the utility model, the injection molding height of the rotating shaft is lowered, the pressure of injection molding is reduced, the thickness of the magnet is correspondingly reduced, and thus, the material cost of the rotor is reduced. The utility model has the advantages of simple and rational structure, low cost, segmented assembly of the turning core, accurate positioning and stable turning.
Description
Technical field
The utility model relates to a kind of small synchronous motor, particularly a kind of small synchronous motor rotor.
Background technology
At present, the small synchronous motor rotor is injection moulding rotating shaft in annular magnet, if the diameter of magnet is big more, the rotating shaft that needs to carry out injection moulding so is also big more, and the height of rotating shaft is also high more, needed injection pressure is also big more, and relative magnet thickness also increases, and can effectively prevent the magnet breakage because increase magnet thickness.But the rotor cost of manufacture of this structure is higher, and the gear beating degree in the motor is big, and because the rotating shaft of disposable injection moulding is too high, causes the axiality of rotating shaft internal cavities poor easily, causes the rotor running unstable.
The utility model content
The purpose of this utility model is to provide that a kind of reason simple in structure is closed, cost is low, the small synchronous motor rotor of segmentation assembling, accurate positioning, to overcome weak point of the prior art.
A kind of small synchronous motor rotor by this purpose design comprises and the annular magnet of rotating shaft socket that its architectural feature is that rotating shaft is a segmentation structure.
Above-mentioned rotating shaft is two sections combine and assemble, and top is the commentaries on classics core that has gear, and the bottom is and the commentaries on classics core print seat of annular magnet socket, changes core and join by buckle or screw thread with the commentaries on classics core print seat.
Above-mentioned commentaries on classics core middle part is a gear, and its base portion is provided with the screens sheet, is provided with cavity in the middle of the commentaries on classics core, and this cavity place part is extended downwards, forms the pipe joint of an outstanding base portion; Dui Ying commentaries on classics core print seat top is provided with the card post therewith, changes the middle cavity that is provided with of core print seat; The screens sheet is buckled between the card post, changes the core cavity and is connected by pipe joint with commentaries on classics core print seat cavity, forms a machine shaft passage.The screens sheet is a sector structure, and symmetrical being distributed in changeed the core base portion, is fan-shaped opening between the screens sheet; Dui Ying card post also is a sector structure therewith, and its shape is identical with fan-shaped opening.The inboard inwardly slight inclination of card post, its top is provided with limited step.Commentaries on classics core print seat cavity top is provided with and changes the positioning step that the core pipe joint matches.Machine shaft channel middle diameter is greater than the diameter of machine shaft, and these passage two ends are respectively equipped with circular step, adopts the equal diameter matched in clearance between this circular step and the machine shaft; Cavity between two circular steps partly forms the oil storage tank of machine shaft.Circular step is separately positioned on to be changeed in core print seat cavity and the commentaries on classics core cavity.Commentaries on classics core print seat cavity) base portion is provided with a shoulder hole.Rotor next door is provided with rotor changes the gear that core joins, and gear is provided with the locating piece that can rotate with gear, and this locating piece matches with card post on the commentaries on classics core print seat.
The utility model is divided into two sections making with rotating shaft, and by original whole rotating shaft and annular magnet injection moulding together, a part of changing into rotating shaft is with the annular magnet injection moulding, and injection moulding highly greatly reduces, the pressure when also just having reduced injection moulding simultaneously; And can guarantee the accuracy of manufacture that rotating shaft cogs, the beating degree of gear can be reduced to 0.04 by original 0.08; Because injection pressure is little, the thickness of magnet has also just reduced accordingly, and the material cost of rotor has also just reduced; Respectively there is a circular step that cooperates with machine shaft at machine shaft passage two ends, and the mode that adopts equal diameter to cooperate between this circular step and the machine shaft is joined, and has guaranteed the linearity between circular step and the machine shaft; Part between two circular steps is the oil storage tank of machine shaft, can store certain lubricating oil in this oil storage tank, provides lubricated fully for machine shaft rotates; Simultaneously, the diameter of this two circular step is little, concentricity is higher, and the middle bigger oil storage tank structure of diameter, both can avoid because machine shaft itself is not enough owing to linearity, it is eccentric to cause machine shaft to rotate, work noise is big, can guarantee that again it meets installation and rotates needed linearity, has also reduced the requirement to injection moulding simultaneously.
The utility model reason simple in structure is closed, cost is low, change core segmentation assembling, accurate positioning, running are stable.
Description of drawings
Fig. 1 is the utility model one example structure schematic diagram.
Fig. 2 is for changeing the core perspective view.
Fig. 3 is partly cut-away's structural representation of Fig. 1.
Fig. 4 is the outer partly cut-away of the another embodiment of a utility model structural representation.
Fig. 5 determines the structural representation of rotation direction for the utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1-Fig. 5, this small synchronous motor rotor comprises the annular magnet 1 with the rotating shaft socket, rotating shaft is two sections combine and assemble, top is the commentaries on classics core 2 that has gear, and the bottom is and the commentaries on classics core print seat 3 of annular magnet 1 socket, changes core 2 and join by buckle or screw thread with commentaries on classics core print seat 3.
Changeing core 2 middle parts is gear 21, and its base portion is provided with screens sheet 22, is provided with cavity 24 in the middle of the commentaries on classics core 2, and these cavity 24 place parts are extended downwards, form the pipe joint 23 of an outstanding base portion; Dui Ying commentaries on classics core print seat 3 tops are provided with card post 31 therewith, change the core print seat 3 middle cavitys 32 that are provided with; Screens sheet 22 is buckled between the card post 31, changes core cavity 24 and is connected by pipe joint 23 with commentaries on classics core print seat cavity 32, forms a machine shaft passage.Screens sheet 22 is a sector structure, and symmetrical being distributed in changeed core 2 base portions, is fan-shaped opening between the screens sheet 22; Dui Ying card post 31 also is a sector structure therewith, and its shape is identical with fan-shaped opening.Card post 31 inboard inwardly slight inclination.When guaranteeing work, buckle has certain bonding strength, can be provided with limited step at its top.Commentaries on classics core print seat cavity 32 tops are provided with and change the positioning step 321 that core pipe joint 23 matches.Machine shaft channel middle diameter is greater than the diameter of machine shaft, and these passage two ends are respectively equipped with circular step 322 and 241, and circular step 322 and 241 is separately positioned on to be changeed in core print seat cavity 32 and the commentaries on classics core cavity 24, referring to Fig. 3 and Fig. 4.This circular step 241 and 322 and machine shaft between adopt isodiametric gap fiting mode to join.Cavity between two circular steps 241 and 322 partly forms the oil storage tank of machine shaft.Circular step 322 and 241 is separately positioned on to be changeed core print seat cavity 32 and changes core cavity 24 inner ends or middle somewhere, plays the purpose of positioning motor rotating shaft and partition oil storage tank.Change core print seat cavity 32 base portions and be provided with a shoulder hole 323.
The rotor next door is provided with rotor changes the gear 4 that core 2 joins, and gear 4 is provided with can be with the locating piece 5 of gear 4 rotations, and locating piece 5 is arranged on the disk, referring to Fig. 5, can smear full-bodied lubricating oil between disk and gear 4 lower surfaces; When gear 4 rotated, the locating piece 5 on disk and the disk also rotated thereupon.When locating piece 5 turns to when blocking post 31 and lean along a direction, locating piece 5 can block rotor, and rotor can not be rotated further along the direction of original rotation, this moment, rotor was toward back rotation, locating piece 5 is also along with revolution, and on this direction, locating piece 5 no longer blocks rotor rotation.Can pass through installing and locating piece 5, determine the direction of rotation of rotor, such as the admission function that realizes laminator.
Claims (10)
1. a small synchronous motor rotor comprises and the annular magnet (1) of rotating shaft socket, it is characterized in that described rotating shaft is a segmentation structure.
2. small synchronous motor rotor according to claim 1, it is characterized in that described rotating shaft is two sections combine and assemble, top is the commentaries on classics core (2) that has gear, and the bottom is and the commentaries on classics core print seat (3) of annular magnet (1) socket, changes core and join by buckle or screw thread with the commentaries on classics core print seat.
3. small synchronous motor rotor according to claim 2, it is characterized in that described commentaries on classics core (2) middle part is gear (21), its base portion is provided with screens sheet (22), changes the middle cavity (24) that is provided with of core, this cavity place part is extended downwards, forms the pipe joint (23) of an outstanding base portion; Dui Ying commentaries on classics core print seat (3) top is provided with card post (31) therewith, changes the middle cavity (32) that is provided with of core print seat; Screens sheet (22) is stuck between the card post (31), changes the core cavity and is connected by pipe joint with commentaries on classics core print seat cavity, forms a machine shaft passage.
4. small synchronous motor rotor according to claim 3 is characterized in that described screens sheet (22) is sector structure, and symmetrical being distributed in changeed core (2) base portion, is fan-shaped opening between the screens sheet; Dui Ying card post (31) also is a sector structure therewith, and its shape is identical with fan-shaped opening.
5. small synchronous motor rotor according to claim 4 is characterized in that the inboard inwardly slight inclination of described card post (31), and its top is provided with limited step.
6. small synchronous motor rotor according to claim 3 is characterized in that described commentaries on classics core print seat cavity (32) top is provided with and changes the positioning step (321) that core pipe joint (23) matches.
7. small synchronous motor rotor according to claim 3, it is characterized in that the diameter of described machine shaft channel middle diameter greater than machine shaft, these passage two ends are respectively equipped with circular step, adopt the equal diameter matched in clearance between this circular step and the machine shaft; Cavity between two circular steps partly forms the oil storage tank of machine shaft.
8. small synchronous motor rotor according to claim 7 is characterized in that described circular step is separately positioned in commentaries on classics core print seat cavity and the commentaries on classics core cavity.
9. small synchronous motor rotor according to claim 3 is characterized in that described commentaries on classics core print seat cavity (32) base portion is provided with a shoulder hole (323).
10. small synchronous motor rotor according to claim 3, it is characterized in that described rotor next door is provided with the gear (4) that joins with rotor commentaries on classics core (2), gear is provided with the locating piece (5) that can rotate with gear, and this locating piece matches with card post (31) on the commentaries on classics core print seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420095462 CN2753042Y (en) | 2004-11-16 | 2004-11-16 | Micro-synchronous rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420095462 CN2753042Y (en) | 2004-11-16 | 2004-11-16 | Micro-synchronous rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2753042Y true CN2753042Y (en) | 2006-01-18 |
Family
ID=35914452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420095462 Expired - Lifetime CN2753042Y (en) | 2004-11-16 | 2004-11-16 | Micro-synchronous rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2753042Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963858B (en) * | 2009-09-22 | 2015-05-20 | 中芯国际集成电路制造(北京)有限公司 | Micro-electromechanical device and manufacturing method thereof |
| CN104785849A (en) * | 2015-04-20 | 2015-07-22 | 禹伟 | Conveying belt driving module of horizontal double-blade shearing machine |
-
2004
- 2004-11-16 CN CN 200420095462 patent/CN2753042Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102963858B (en) * | 2009-09-22 | 2015-05-20 | 中芯国际集成电路制造(北京)有限公司 | Micro-electromechanical device and manufacturing method thereof |
| CN104785849A (en) * | 2015-04-20 | 2015-07-22 | 禹伟 | Conveying belt driving module of horizontal double-blade shearing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141116 Granted publication date: 20060118 |