CN100385130C - Low wear rotary actuator - Google Patents
Low wear rotary actuator Download PDFInfo
- Publication number
- CN100385130C CN100385130C CNB2004100699597A CN200410069959A CN100385130C CN 100385130 C CN100385130 C CN 100385130C CN B2004100699597 A CNB2004100699597 A CN B2004100699597A CN 200410069959 A CN200410069959 A CN 200410069959A CN 100385130 C CN100385130 C CN 100385130C
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- stator
- rotor
- rotating shaft
- rotary actuator
- groove
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Abstract
The present invention relates to a rotation device with low friction, which comprises a stator component a rotor component and rotary shaft, wherein the center of the stator component is provided with a stator shaft hole; the center of the rotor is provided with a rotor shaft hole; the rotary shaft is inserted in the stator shaft hole and the rotor shaft hole so as to connect the stator component and the rotor component, and the rotary shaft can rotate freely relative to the stator component and the rotor component.
Description
(1) technical field
The relevant a kind of rotational structure of the present invention, especially relevant a kind of low wear rotary actuator with low abrasive effect.
(2) background technique
Motor application in daily life is quite extensive, for example is applied to radiation fan in the computer or compressor of air-conditioning system etc.Wherein the slewing gear of motor then is to influence motor one of the important key of quality quality in the running.The design of therefore good slewing gear to running life of prolonging motor, reduce noise etc. critical role arranged.
A kind of existing slewing gear 1 as shown in Figure 1, it comprises a bearing support 11, it offers a circular hole or a groove; One bearing 12, it offers an axis hole 121 and compact configuration in the circular hole or groove of bearing support 11; One rotating shaft 13 is inserted in the axis hole 121 also free to rotate; And one rotating shaft fastener 14 be snapped in an end of rotating shaft 13, to avoid rotating shaft 13 by deviating from the bearing 12.Its middle (center) bearing 12 can be oily copper material, be the material of profit certainly that sintering curing forms behind the powder metallurgy immersion oil of copper base, iron-based, copper iron-based, so that preferable lubricity to be provided, or ceramic material, comprise aluminium oxide, zirconium oxide, silicon nitride etc., so that preferable wear resistance to be provided.
Above-mentioned slewing gear 1 when high speed rotating, the easy fair wear and tear of surface of contact that bearing 12 two ends and rotating shaft are 13.If adopt the bearing 12 of oily copper material, though preferable lubricity can be provided, its wear resistance is relatively poor, therefore easily produces powder and gives birth to the rotten situation of lubricating fluid with the lubricating fluid hybrid concurrency, causes working life shorter.If adopt the bearing 12 of ceramic material, though preferable wear resistance can be provided, its lubricity is relatively poor, and therefore the bigger problem of noise is arranged.
In addition, in the above-mentioned slewing gear, because the gap that bearing 12 and rotating shaft are 13 is minimum, therefore can't keep relatively large lubricating fluid, and only can keep the lubricating fluid of a small amount of in the mode of utmost point shallow trench at axis hole 121 inwalls, if contain the situation generation that excessive lubricating fluid promptly has the lubricating fluid spill and leakage.
In sum, the wearing and tearing that how to improve bearing to be to prolong the working life of slewing gear, the noise when reducing slewing gear simultaneously and rotating and keep relatively large lubricating fluid in bearing and the situation that does not have a spill and leakage is to need the target of effort at present badly.
(3) summary of the invention
At the problems referred to above, the object of the present invention is to provide a kind of low wear rotary actuator, its wearing and tearing that can improve bearing are to prolong the working life of rotational structure.
Another object of the present invention is to provide a kind of low wear rotary actuator, the noise when it can reduce the rotational structure rotation.
Another purpose of the present invention is to provide a kind of low wear rotary actuator, and it can keep relatively large lubricating fluid between stator module and rotor assembly and the situation that do not have a spill and leakage takes place.
For reaching above-mentioned purpose, low wear rotary actuator of the present invention comprises stator group spare, a rotor assembly and a rotating shaft.The center of this stator module is provided with a stator axis hole; The center of this rotor assembly is provided with a rotor shaft hatch; This rotating shaft is inserted in this stator axis hole and this rotor shaft hatch, and connecting this stator module and this rotor assembly, and this rotating shaft is all free to rotate with respect to this stator module and this rotor assembly.Low wear rotary actuator of the present invention also comprises a spiral winding, and it is socketed between this rotor assembly and this stator module, and its Hand of spiral is identical with the sense of rotation of this rotating shaft.
According to low wear rotary actuator of the present invention, have at least the assembly that rotates configuration more than two to form between stator module and rotor assembly, but not single rotation configuration relation, so can significantly reduce rotating shaft wearing and tearing that stator sleeve, rotor sleeve caused.Simultaneously, because the relative velocity of rotating shaft and stator module and rotor assembly reduces, therefore low wear rotary actuator of the present invention can effectively reduce the noise when rotating.In addition, because the Hand of spiral of spiral winding is identical with the sense of rotation of rotor assembly, so rotor assembly is when rotating, and the Hand of spiral that lubricating fluid will prolong spiral winding flows to the inside grooves of stator module, and avoids the situation generation of lubricating fluid spill and leakage.
(4) description of drawings
Fig. 1 is an existing bearing framework.
Fig. 2 is the low wear rotary actuator of preferred embodiment of the present invention.
Fig. 3 is the relative position schematic representation of rotor assembly and spiral winding.
Fig. 4 is the low wear rotary actuator of another preferred embodiment of the present invention.
(5) embodiment
Hereinafter with reference to the low wear rotary actuator of relevant drawings explanation according to preferred embodiment of the present invention, wherein identical assembly will be illustrated with identical reference marks.
Please refer to Fig. 2, the low wear rotary actuator 2 of the embodiment of the invention comprises stator group spare 21, a rotor assembly 22 and a rotating shaft 23.Stator module 21 is made up of a stator seat 211 and a stator sleeve 212, and stator seat 211 is provided with a groove, can hold stator sleeve 212 and compact configuration, and a stator axis hole 2121 is offered at the center of stator sleeve 212 in addition.Rotor assembly 22 is made up of a rotator seat 221 and a rotor sleeve 222, and rotator seat 221 also is provided with a groove, can hold rotor sleeve 222 and compact configuration, and a rotor shaft hatch 2221 is offered at the center of rotor sleeve 222 in addition.23 of rotating shafts are inserted in stator axis hole 2121 and the rotor shaft hatch 2221, to connect stator module 21 and rotor assembly 22, and rotating shaft 23 is all free to rotate with respect to stator module 21 and rotor assembly 22, so rotor assembly 22 can freely rotate with respect to stator module 21.
Low wear rotary actuator 2 of the present invention also comprises two rotating shaft fasteners 24, and it is snapped in the two ends of rotating shaft 23, can avoid rotating shaft 23 to deviate from stator axis hole 2121 or rotor shaft hatch 2221; Rotating shaft fastener 24 also is individually fixed in the bottom portion of groove of stator seat 211 and the bottom portion of groove of rotator seat 221, can avoid rotating shaft fastener 24 to rock, to increase rotational stability.In addition, the two ends of rotating shaft 23 are circular-arc, reduce the area of the bottom portion of groove of contact stator module 21 or rotor assembly 22, to reduce the friction of 22 of rotating shaft 23 and stator module 21 or rotor assembly.Simultaneously, also can establish a wear plate 25 in the bottom portion of groove of stator module 21 or rotor assembly 22, in order to against an end of rotating shaft 23 to increase wear resistance, can reduce wear the gap that is produced the vibrations that cause.
Low wear rotary actuator 2 of the present invention comprises one group of magnet assembly 26 in addition, a permanent magnet for example, and it is located at the opposing side of stator module 21 and rotor assembly 22 respectively in the form of a ring, and the opposite each other polarity of magnet assembly 26 of two opposing sides.There is a natural attraction between the sexes owing to magnetic pole, stator module 21 will attract each other with rotor assembly 22 and close, but owing to the two ends of rotating shaft 23 obtain to support against wear plate 25 respectively, therefore rotor assembly 22 still can keep suitable gap with stator module 21 and can relatively freely rotate, the end points of guaranteeing rotating shaft 23 simultaneously is resisted against on the wear plate 25, to increase the stability of rotating, main wearing and tearing can also be concentrated on the wear plate 25, and make rotating shaft 23, stator module 21 and rotor assembly 22 can prolong its life-span; In addition, also because rotating shaft 23 is all free to rotate with respect to stator module 21 and rotor assembly 22, so rotor assembly 22 with respect to the relative velocity of stator module 21 if with existing identical situation under, according to structure of the present invention, its rotating shaft 23 will decrease with respect to the relative velocity of stator module 21 or rotating shaft 23 relative velocity with respect to rotor assembly 221, for rotating shaft 23 with respect between the stator module 21 and rotating shaft 23 can reduce with respect to the wearing and tearing nature between the rotor assembly 221, and then prolong its life-span.
As shown in Figure 2, low wear rotary actuator 2 of the present invention is by the suitable design of stator axis hole 2121 with rotating shaft 23, can provide enough rotational stabilities, therefore stator module 21 and 22 of rotor assembly can have a relatively large gap d, thereby can keep relatively large lubricating fluid in gap d.Low wear rotary actuator 2 of the present invention can be provided with a spiral winding 27 in this gap d, and spiral winding 27 is socketed between stator module 21 and the rotor assembly 22, please refer to Fig. 3, and its Hand of spiral R2 is identical with the sense of rotation R1 of rotor assembly 22.
Please refer to Fig. 4, it shows the low wear rotary actuator 3 of another embodiment of the present invention.Low wear rotary actuator 3 of the present invention comprises one first stator module 31, one second stator module 32, a rotor assembly 33 and a rotating shaft 23.First stator module 31 is made up of one first stator seat 311 and one first stator sleeve 312, and first stator seat 311 is provided with a groove, can hold first stator sleeve 312 and the compact configuration.Second stator module 32 is made up of one second stator seat 321 and one second stator sleeve 322, and second stator seat 321 is provided with a groove, can hold second stator sleeve 322 and the compact configuration.A stator axis hole 3121,3221 is respectively offered at the center of first stator sleeve 312 and second stator sleeve 322.Be noted that above-mentioned first stator module 31 and second stator module 32 can be collectively referred to as stator group spare.Rotor assembly 33 is made up of a rotator seat 331 and a rotor sleeve 332, and rotator seat 331 is provided with a groove, can hold rotor sleeve 332 and compact configuration, and a rotor shaft hatch 3321 is offered at the center of rotor sleeve 332.23 of rotating shafts are inserted in stator axis hole 3121,3221 and the rotor shaft hatch 3321, rotor assembly 33 is connected between first stator module 31 and second stator module 32, and rotating shaft 23 is all free to rotate with respect to first stator module 31, second stator module 32 and rotor assembly 33, so rotor assembly 33 can freely rotate with second stator module 32 with respect to first stator module 31.In addition, the function of the fastener of rotating shaft shown in Fig. 4 24, wear plate 25, spiral winding 27 is identical with embodiment's shown in Figure 2 function, does not repeat them here.
Be noted that, aforesaid stator sleeve 212, first stator sleeve 312, second stator sleeve 322 and rotor sleeve 222,332 can be oily copper material, be that sintering curing forms behind the powder metallurgy immersion oil of copper base, iron-based, copper iron-based, or be ceramic material, comprise aluminium oxide, zirconium oxide, silicon nitride etc.Adopt which kind of material end to see considering of artificer, do not break away from spirit of the present invention.
According to low wear rotary actuator of the present invention, have at least the assembly that rotates configuration more than two to form between stator module and rotor assembly, but not single rotation configuration relation, so can significantly reduce rotating shaft wearing and tearing that stator sleeve, rotor sleeve caused.Explain with low wear rotary actuator 2 of the present invention shown in Figure 2,23 of stator module 21 and rotating shafts are the rotation configuration, and 23 of rotor assembly 22 and rotating shafts also are to rotate configuration but not compact configuration.Therefore rotating shaft 23 has following three kinds of situations with the relation of stator module 21, rotor assembly 22: (1) equate with the friction of 23 of rotor assembly 22 and rotating shafts with the friction of 23 of rotating shafts as if stator module 21, then the rough relative velocity that equals 23 of rotor assembly 22 and rotating shafts of the relative velocity of 23 of stator module 21 and rotating shafts.When (2) friction of 23 of stator module 21 and rotating shafts was less than the friction of 23 of rotor assembly 22 and rotating shafts, the relative velocity that stator module 21 and rotating shaft are 23 was then greater than the relative velocity of 23 of rotor assembly 22 and rotating shafts.When (3) friction of 23 of stator module 21 and rotating shafts was greater than the friction of 23 of rotor assembly 22 and rotating shafts, the relative velocity that stator module 21 and rotating shaft are 23 was then less than the relative velocity of 23 of rotor assembly 22 and rotating shafts.Above-mentioned which kind of situation no matter, rotating shaft 23 must be less than the relative velocity of rotor assembly 22 with respect to stator module 21 with respect to the relative velocity of rotor assembly 22 with respect to the relative velocity and the rotating shaft 23 of stator module 21.
Illustrate with existing bearing shown in Figure 11 and low wear rotary actuator 2 of the present invention shown in Figure 2 again.Suppose that the relative velocity between stator and rotor is that per second 10,000 changes, stator sleeve 12 will bear the axis of rotation 13 per seconds 10,000 to change the wearing and tearing that caused in the existing bearing 1.And low wear rotary actuator 2 of the present invention, when if stator module 21 equates with the friction of 23 of rotor assembly 22 and rotating shafts with the friction of 23 of rotating shafts, though stator module 21 still is a per second 10 with the relative velocity of rotor assembly 22,000 changes, but rotor assembly 22 only is a per second 5 with respect to the relative velocity of rotating shaft 23,000 changes, stator module 21 also is a per second 5 with respect to the relative velocity of rotating shaft 23,000 changes, therefore stator sleeve 212 and rotor sleeve 222 only bear the axis of rotation 23 per seconds 5,000 changes the wearing and tearing that caused, and prolongs the working life of low wear rotary actuator 2 so can significantly reduce the wearing and tearing of stator sleeve 212 and rotor sleeve 222.Simultaneously, because the relative velocity of rotating shaft and stator module and rotor assembly reduces, therefore low wear rotary actuator of the present invention can effectively reduce the noise when rotating.
In addition, according to low wear rotary actuator of the present invention, relatively large gap d is arranged between stator module and rotor assembly, therefore can keep relatively large lubricating fluid increases lubricated effect in gap d.And because the Hand of spiral R2 of spiral winding is identical with the sense of rotation R1 of rotor assembly, so rotor assembly is when rotating, and the Hand of spiral that lubricating fluid will prolong spiral winding flows to the inside grooves of stator module, and avoids the situation generation of lubricating fluid spill and leakage.
As shown in the above description, if low wear rotary actuator of the present invention is applied in the motor, with Fig. 2 is example, its stator module 21 is to be connected in a motor base, 22 of rotor assembly are to be connected in a motor output end (for example fanning the flabellum of motor at fan), the power generation arrangement (for example the combination of silicon steel plate and electromagnet etc.) that motor is then arranged between the extending end of the outer wall of stator module 21 and rotor assembly 22 is in order to produce the relative velocity between stator module 21 and the rotor assembly 22; According to above-mentioned structure, more quiet in the time of can also making this motor in running, also make that the life-span of this motor is longer after having reduced wearing and tearing, make this motor can the acquisition industry on application widely.
The above only is an illustrative, but not is restrictive.Any personnel that are familiar with this technology all can carry out the modification of equivalence according to the embodiment of the invention described above, and do not break away from its spirit and category.So anyly do not break away from spirit of the present invention and category and, all should be contained in the accompanying Claim scope to its equivalent modifications of carrying out or change.
Claims (8)
1. low wear rotary actuator is characterized in that comprising:
One rotor assembly, its center is provided with a rotor shaft hatch;
Stator group spare, its center are provided with a stator axis hole; And
One rotating shaft, it is inserted in this rotor shaft hatch and this stator axis hole free to rotately, makes this rotor assembly free to rotate with respect to this stator module;
Wherein, this rotor assembly comprises:
One rotator seat is provided with a groove; And
One rotor sleeve, the groove of being located at this rotator seat is compact configuration, and this rotor sleeve center is provided with this rotor shaft hatch.
2. low wear rotary actuator as claimed in claim 1 is characterized in that the material of this rotor sleeve is selected from one of oily copper material and ceramic material.
3. low wear rotary actuator as claimed in claim 1 is characterized in that this stator module comprises:
One stator seat is provided with a groove; And
One stator sleeve, the groove of being located at this stator seat is compact configuration, and this stator sleeve center is provided with this stator axis hole, and wherein the material of this stator sleeve is selected from one of oily copper material and ceramic material.
4. low wear rotary actuator as claimed in claim 1 is characterized in that this stator module comprises:
One first stator module, it comprises:
One first stator seat is provided with a groove;
One first stator sleeve, the groove of being located at this first stator seat is compact configuration, and this first stator sleeve center is provided with the first stator axis hole, and wherein the material of this first stator sleeve is selected from one of oily copper material and ceramic material; And
One second stator module, it comprises:
One second stator seat is provided with a groove; And
One second stator sleeve, the groove of being located at this second stator seat is compact configuration, and this second stator sleeve center is provided with the second stator axis hole, and wherein the material of this second stator sleeve is selected from one of oily copper material and ceramic material;
Wherein, this rotor assembly is located between this first stator module and this second stator module.
5. low wear rotary actuator as claimed in claim 3 is characterized in that also comprising:
At least one rotating shaft fastener, it is snapped at least one end of this rotating shaft, deviates from this rotor shaft hatch or this stator axis hole to avoid this rotating shaft, and wherein this rotating shaft fastener is to be fixed in the bottom of groove of this rotator seat or the bottom of the groove of this stator seat;
At least one wear plate is located in the groove of this rotator seat or in the groove of this stator seat, and against at least one end of this rotating shaft;
One group of magnet assembly in the form of a ring, is located at the opposing side of this rotor assembly and this stator module respectively with the polarity that attracts each other;
One spiral winding is socketed between this rotor assembly and this stator module, and its Hand of spiral is identical with the sense of rotation of this rotating shaft.
6. low wear rotary actuator as claimed in claim 1 is characterized in that these rotating shaft two ends are circular-arc.
7. low wear rotary actuator as claimed in claim 5 is characterized in that this magnet assembly is a permanent magnet.
8. low wear rotary actuator as claimed in claim 1 is characterized in that this low wear rotary actuator is equipped on the motor, and wherein this motor also comprises a power generation arrangement, and this power generation arrangement comprises one a group of silicon steel plate and an electromagnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100699597A CN100385130C (en) | 2004-07-16 | 2004-07-16 | Low wear rotary actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100699597A CN100385130C (en) | 2004-07-16 | 2004-07-16 | Low wear rotary actuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1721719A CN1721719A (en) | 2006-01-18 |
| CN100385130C true CN100385130C (en) | 2008-04-30 |
Family
ID=35912240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100699597A Expired - Fee Related CN100385130C (en) | 2004-07-16 | 2004-07-16 | Low wear rotary actuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100385130C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI634725B (en) * | 2017-10-27 | 2018-09-01 | 建準電機工業股份有限公司 | Rotor for a motor |
| WO2021164196A1 (en) * | 2020-02-18 | 2021-08-26 | 安徽威灵汽车部件有限公司 | Rotor assembly, water pump, and vehicle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4207485A (en) * | 1978-04-24 | 1980-06-10 | The Garrett Corporation | Magnetic coupling |
| US5675203A (en) * | 1994-03-15 | 1997-10-07 | Volkswagen Ag | Motor/generator arrangement having a movable common stator |
| CN2414249Y (en) * | 2000-01-24 | 2001-01-10 | 台达电子工业股份有限公司 | Magnetic suspension bearing device |
| CN1315773A (en) * | 2000-03-27 | 2001-10-03 | 三星电机株式会社 | Scanning electric machine |
| CN2466843Y (en) * | 2001-02-01 | 2001-12-19 | 云泰科技股份有限公司 | Motor shaft tube fixing device |
| CN2466846Y (en) * | 2001-01-21 | 2001-12-19 | 云泰科技股份有限公司 | Rotor fixing structure |
| US6380653B1 (en) * | 1999-06-04 | 2002-04-30 | Denso Corporation | Rotational power converter for hybrid electric vehicle |
| US6762518B1 (en) * | 2000-06-05 | 2004-07-13 | Tokyo Parts Industrial Co., Ltd. | Flat core brushless motor |
-
2004
- 2004-07-16 CN CNB2004100699597A patent/CN100385130C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4207485A (en) * | 1978-04-24 | 1980-06-10 | The Garrett Corporation | Magnetic coupling |
| US5675203A (en) * | 1994-03-15 | 1997-10-07 | Volkswagen Ag | Motor/generator arrangement having a movable common stator |
| US6380653B1 (en) * | 1999-06-04 | 2002-04-30 | Denso Corporation | Rotational power converter for hybrid electric vehicle |
| CN2414249Y (en) * | 2000-01-24 | 2001-01-10 | 台达电子工业股份有限公司 | Magnetic suspension bearing device |
| CN1315773A (en) * | 2000-03-27 | 2001-10-03 | 三星电机株式会社 | Scanning electric machine |
| US6762518B1 (en) * | 2000-06-05 | 2004-07-13 | Tokyo Parts Industrial Co., Ltd. | Flat core brushless motor |
| CN2466846Y (en) * | 2001-01-21 | 2001-12-19 | 云泰科技股份有限公司 | Rotor fixing structure |
| CN2466843Y (en) * | 2001-02-01 | 2001-12-19 | 云泰科技股份有限公司 | Motor shaft tube fixing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1721719A (en) | 2006-01-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20160716 |