CN2821290Y - Power transfer system - Google Patents
Power transfer system Download PDFInfo
- Publication number
- CN2821290Y CN2821290Y CN 200520061653 CN200520061653U CN2821290Y CN 2821290 Y CN2821290 Y CN 2821290Y CN 200520061653 CN200520061653 CN 200520061653 CN 200520061653 U CN200520061653 U CN 200520061653U CN 2821290 Y CN2821290 Y CN 2821290Y
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- Prior art keywords
- follower
- power
- transmission system
- flexible connector
- perforate
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Abstract
The utility model relates to a power transfer system which is at least provided with a driving wheel, a first driven wheel, a second driven wheel and an elastic connecting piece, wherein the driving wheel is matched with a power generating device to drive the first driven wheel to rotate, thereby, the power generated by the power generating device is transferred to the first driven wheel. The power transfer system also comprises the elastic connecting piece which is connected with one driven wheel of the first driven wheel and the second driven wheel and is elastically abutted to the other driven wheel, thereby, through the elastic connecting piece, the power transferred to the first driven wheel can be transferred to the second driven wheel.
Description
[technical field]
The utility model is about a power-transmission system, and especially a kind of gear that can prevent collapses the power-transmission system of tooth.
[background technique]
Power transmission system is one of requisite element of many machinery.For example now be widely used in record or reproducing device in the every field, it has a movable read/write cell, by optics or magnetic principles with data logging on the disc of a quick rotation or read the data that are stored on the disc.Therefore, in the inside of these records or reproducing device, need provide a driver element respectively driving disk rotate and read/write cell moves.
Please referring to Fig. 1, a traditional driver element 80 is mounted on the sheet metal 82 of this record or reproducing device.Driver element 80 has a spindle motor 800, and it is fixed in a side of sheet metal 82.Spindle motor 800 has a rotating shaft 802, and rotating shaft 802 is passed and stretched out outside the sheet metal 82.One axle center rotating disk 804 is fixed in the end of rotating shaft 802, with disc (figure do not show) thus the center hole fit drive disc rotation.This driver element 80 also has a drive motor 806 and a driving mechanism 808, drive motor 806 produces driving force, driving mechanism 808 connects the reading unit 86 of drive motors 806 and this record or reproducing device, moves thereby the driving force that drive motor 806 produces is passed on the read/write cell 86 to drive the direction that this reading unit 86 sets along guide rail 88.This driving mechanism 808 comprises a driving gear set 810 and a driving rack 812, and driving rack 812 is fixedlyed connected with read/write cell 86.Driving gear set 810 has first, second and third duplicate gear (not indicating) and combines, thereby forms one or three grades of train of reduction gears.The gearwheel of first duplicate gear of driving gear set 810 is meshed with driving gear 807 on the drive motor 806, thereby the driving force that drive motor 806 is produced is passed on the driving gear set 810.Driving gear set 810 inner engagement driving, and the gearwheel of this second duplicate gear matches with the small gear of this first duplicate gear, the gearwheel of the 3rd duplicate gear matches with the small gear of this second duplicate gear, thereby reduces the rotational velocity of gear and transfer a driving force on the 3rd duplicate gear.The small gear of the 3rd duplicate gear is meshed with driving rack 812, thereby this driving force is passed on the driving rack 812.
Because driving gear set 810 is made by plastic materials usually, drive motor 806 all can produce phenomenons such as collapsing tooth because torsion is excessive with driving gear set 810, thereby makes driver element 80 be damaged.Yet the load of drive motor 806 output is excessive, perhaps driving rack 812 run between the gear that emergency situations all can cause driving gear set 810 or between driving gear set 810 and the driving rack 812 torsion surpass and limit.
With regard to above-mentioned record or reproducing device, the tooth phenomenon that collapses that avoid driving rack 812 generation emergency situations to cause is very difficult.One, this record or reproducing device are when writing down or reading data, and reading unit 86 is at first read dish and resetted.That is, finding data before corresponding physical position on the disc, reading unit 86 can be moved to the end of guide rail 88 inboards always.Because effect of inertia, can transmit sizable torsion between driving gear set 810 and the driving rack 812 this moment, when the size of torsion surpasses allowed band, the tooth phenomenon will occur collapsing.In addition, this record or reproducing device will pass through a lot of processes from assembling, test, be transported to use, and this record or reproducing device all might be by accidental falls in each process.When this record or reproducing device fell, reading unit 86 can move on to the inside and outside two ends of guide rail 88 suddenly.Reading unit 86 arrives the moment at the inside and outside two ends of guide rail 88, and the torsion that transmits between driving gear set 810 and the driving rack 812 is quite big, is easy to produce collapse the tooth phenomenon.
The above-mentioned tooth phenomenon that collapses not only is present in this record or the reproducing device, but ubiquitous problem, for example electronic toys, automobile etc. in the power-transmission system.
[summary of the invention]
In view of this, provide a kind of and can avoid collapsing the power-transmission system of tooth phenomenon in fact for necessary.
One power-transmission system, it has a driving wheel, first, second follower and a Flexible Connector at least.Thereby this driving wheel matches with a dynamic power generator spare and drives this first follower and rotates transmission of power with this dynamic power generator spare generation to this first follower.This power-transmission system comprises that also this Flexible Connector is connected with a wherein follower in first, second follower, and elasticity presses on another follower, thereby can be with on transmission of power to the second follower that reaches on first follower by this Flexible Connector.
Compared with prior art, above-mentioned power-transmission system adopts a Flexible Connector to realize power transmission between first follower and second follower, this Flexible Connector is connected with a follower, and elasticity presses on another follower, thereby, can make one first follower drive second follower and rotate the realization transmission of power by the effect of stiction.When maximum static friction force between the follower that torsion compresses greater than this Flexible Connector and its elasticity appears in this power-transmission system, this Flexible Connector no longer keeps relative static state with first, second follower, this Flexible Connector and connected follower can be done slide relative with respect to another follower, thereby avoid collapsing the generation of tooth phenomenon fully.
[description of drawings]
Fig. 1 be the record of the traditional driver element of tool or reproducing device stereogram.
Fig. 2 is the information recording/reproducer stereogram that tool adopts a better embodiment of the utility model power-transmission system.
Fig. 3 is the drive motor of information recording/reproducer shown in Figure 2 and the stereogram of train of reduction gears assembling back.
Fig. 4 is the 3rd a follower stereogram of information recording/reproducer shown in Figure 2.
Fig. 5 is the stereogram of the integral type device of the Flexible Connector of information recording/reproducer shown in Figure 2 and the 4th follower.
[embodiment]
In order to understand the power-transmission system of the utility model better, below be that example elaborates with the information recording/reproducer that adopts the utility model power conveying system to unify better embodiment.But the power-transmission system of the utility model is not limited in and is applied in the information recording/reproducer, and it also can apply in other electronic devices that comprise power transmission system, as electronic toys etc.
See also Fig. 2, an information recording/reproducer 99 has a substrate 10, a spindle motor 20, a read/write cell 30, a drive motor 40 and a power-transmission system 50.Wherein, substrate 10 has an opening 12, and spindle motor 20 is fixed in a side of substrate 10, and with the adjacent setting of a minor face of opening 12.Substrate 10 is passed to stretch out the opposite side of substrate 10 in the axle center 22 of spindle motor 20.One rotating disk 24 is fixed in the end in axle center 22, and can with disc (figure do not show) fit mutually, thereby drive this disc rotation.One guide rail 32 is along the disc radial cross-over connection in opening on 12.Read/write cell 30 1 sides are sheathed on the guide rail 32, and opposite side slides and is erected on the side of opening 12.Drive motor 40 is fixed on the substrate 10, and with guide rail 32 adjacent settings.Power-transmission system 50 connects drive motor 40 and read/write cell 30 respectively, thereby the transmission of power that drive motor 40 is produced is done along the direction of guide rail 32 and moved forward and backward to drive read/write cell 30 to read/write cell 30.
See also Fig. 3, power-transmission system 50 comprises a train of reduction gears 52, a driving rack 54 and two pivot pins 56.Wherein, train of reduction gears 52 is connected on the drive motor 40, and driving rack 54 is fixedlyed connected with read/write cell 30.Train of reduction gears 52 can be set the train of reduction gears of any progression as required, and present embodiment is that example illustrates its structure with the double-reduction gear group.This train of reduction gears 52 comprises a driving wheel 520 and the first, second, third and the 4th follower 522,524,526,528 (please referring to Fig. 5).Driving wheel 520 is sheathed in the rotating shaft of drive motor 40, and is meshed with first follower 522.The mode that between driving wheel 520 and first follower 522 can be gear engagement cooperates, and also can be that the mode by belt pulley cooperates.The diameter of driving wheel 520 is far smaller than the size of first follower 522, thereby realizes first order deceleration.First, second follower 522,524 coaxial settings, the two is fixed on the substrate 10 by pivot pin 56.First, second follower 522,524 can be respectively large and small gear concentric in the duplex gear.Second follower 524 is meshed with the 3rd follower 526, and the diameter of second follower 524 is far smaller than the size of the 3rd follower 526, thereby realizes that the second level slows down.Three, connect by a Flexible Connector 58 between the 4th follower 526,528, the 4th follower 528 is meshed with driving rack 54.
See also Fig. 4, the 3rd follower 526 has relative two side faces (indicate), and its center has a perforate 527 that runs through the 3rd follower 526.The core vertical extent of a wherein side of the 3rd follower 526 forms an annular flange flange 529.Flexible Connector 58 (please referring to Fig. 3) part is contained in this perforate 527 and with the edge elasticity of perforate 527 and is connected.
See also Fig. 5, Flexible Connector 58 and the 4th follower 528 are an integral type device, and Flexible Connector 58 has a circular body portion 580, and this main part 580 directly is formed on the end face (figure does not show) of the 4th follower 528.The diameter of main part 580 is greater than the diameter of the perforate 527 of the 3rd follower 526, and its center also offers a perforate 582, and pivot pin 56 runs through the center hole (figure does not show) of the 4th follower 528, the perforate 582 of main part 580 and the perforate 527 of the 3rd follower 526.Main part 580 is provided with a depression 581 on the circumference of contiguous outer rim.The annular flange flange 529 of the 3rd follower 526 is contained in the depression 581.Flexible Connector 58 also is provided with some overhangs 586 and grab 588.Overhang 586 and grab 588 are positioned on the same circumference, and arranged in a crossed manner mutually.Overhang 586 is a horseshoe-shaped structure, and it has one and is vertically connected at the fixing part 586a on the main part 580, the joint 586c that a pressure section 586b and vertically is connected and fixed 586a of portion and pressure section 586b.When Flexible Connector 58 was filled on the 3rd follower 526, elastic strain took place and is close on the sidewall of perforate 527 of the 3rd follower 526 in pressure section 586b.The hook end of grab 588 (not indicating) stretches out perforate 527 and is hooked on the upper surface (not indicating) of the 3rd follower 526, thereby location Flexible Connector 58 and the 4th follower 588 on above-below direction prevent to locate Flexible Connector 58 and the 4th follower 588 rocks.
When information recording/reproducer 99 work, spindle motor 20 begins rotation with drive motor 40, and spindle motor 20 drives disc rotation by rotating disk 24.The driving wheel 520 of Power Train 50 is positioned in the rotating shaft of drive motor 40, so it can rotate along with the rotation of drive motor 40.Driving wheel 520 matches with first follower 522, thereby with transmission of power to the first follower 522.Because of first follower 522 and second follower 524 are the concentric big small gear of same duplicate gear, so power can be passed to second follower 524.Second follower 524 is meshed with the 3rd follower 526 and with transmission of power to the three followers 526.Owing to be close on the 3rd follower 526 after overhang 586 elastic strains of Flexible Connector 58, therefore when the 3rd follower 526 rotates, produce stiction between the 3rd follower 526 and the overhang 586, under the effect of stiction, Flexible Connector 58 is along with the 3rd follower 526 rotates, thus with transmission of power to Flexible Connector 58.Because Flexible Connector 58 and the 4th follower 528 are the integral type device, therefore the 4th follower 528 can rotate along with Flexible Connector 58, thereby with on transmission of power to the four followers 528.The 4th follower 528 is meshed with driving rack 54, thus with transmission of power to driving rack 54 and change the direction of power.Driving rack 54 is fixedlyed connected with reading unit 30, does along the direction of guide rail 32 and moves forward and backward thereby drive reading unit 30, finishes the whole process of transmission of power thus.
Because in the power transmission process of power-transmission system 50, the 3rd follower 526 is to drive Flexible Connector 58 to rotate under the effect of stiction, thereby could be with transmission of power to subsequent element.Therefore, reading dish when information recording/reproducer resets or is caused that by situations such as accidental falls when having big torsion between train of reduction gears 52 and the driving rack 54, the size of torsion can be above the maximum static friction force between the overhang 586 of the 3rd follower 526 and Flexible Connector 58.Thereby, slide relative can take place between the 3rd follower 526 and the Flexible Connector 5, avoided torsion to exceed allowed band and cause the phenomenon that collapses tooth thus fully.And precedingly directly Flexible Connector 58 and the 4th follower 528 are made of one the formula device, can reduce component number.Therefore, reduce the demand of mould to reduce cost and to be easy to assembling.
The above only is a better embodiment of the present utility model, and the 3rd follower 526 can directly be meshed with driving wheel 520 or drive by belt, also can the two be provided with other followers with transmission of power to the three followers 526 on.In above-mentioned better embodiment, Flexible Connector 58 is connected with the 4th follower 528 and elasticity presses on the 3rd follower 526, but Flexible Connector 58 also can be connected with the 3rd follower 526 or be one-body molded, and presses on the 4th follower 528.And, will be to those skilled in the art, can make other according to the technical solution of the utility model and be equal to replacement or be applied near field, and all these replacements or application all should belong to the protection domain of the utility model claim.
Claims (10)
1. a power-transmission system, it has a driving wheel and reaches first, second follower at least, thereby this driving wheel matches with a dynamic power generator spare and drives this first follower and rotates transmission of power with this dynamic power generator spare generation to this first follower, it is characterized in that: this power-transmission system also comprises a Flexible Connector, this Flexible Connector is connected with a wherein follower in first, second follower, and elasticity presses on another follower, thereby can be with on transmission of power to the second follower that reaches on first follower by this Flexible Connector.
2. power-transmission system as claimed in claim 1 is characterized in that: this Flexible Connector is an integral type device with the follower that is connected with it.
3. power-transmission system as claimed in claim 2 is characterized in that: this Flexible Connector has at least one elastic arm, and this first follower has a perforate, and this elastic arm to small part is contained in this perforate.
4. power-transmission system as claimed in claim 2 is characterized in that: this Flexible Connector has a main part, and this main part directly is formed on the end face of second follower.
5. power-transmission system as claimed in claim 4, it is characterized in that: this Flexible Connector is provided with a plurality of overhangs on this main part, this first follower center has a perforate, and this overhang to small part is contained in the perforate of this first follower and elasticity presses on the sidewall of this perforate.
6. power-transmission system as claimed in claim 5, it is characterized in that: this overhang comprises a fixing part, a pressure section and a junction, on this this main part of fixing part vertical fixing, this pressure section compresses mutually with the perforate sidewall of this first follower, and this joint connects this fixing part and this pressure section.
7. power-transmission system as claimed in claim 4 is characterized in that: this Flexible Connector is provided with at least one grab to match with this first follower on this main part.
8. power-transmission system as claimed in claim 4 is characterized in that: this first follower has a flange, and this main part is being provided with a depression with the corresponding position of this flange, and the flange of this first follower is contained in the depression of this Flexible Connector.
9. power-transmission system as claimed in claim 1 is characterized in that: this power-transmission system also comprises center tooth wheels, and it matches with this driving wheel and this first follower respectively with on transmission of power to the first follower.
10. power-transmission system as claimed in claim 1 is characterized in that: power-transmission system also comprises a driving rack, and this driving rack matches and is fixed in this second follower and treats on the moving member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520061653 CN2821290Y (en) | 2005-07-15 | 2005-07-15 | Power transfer system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520061653 CN2821290Y (en) | 2005-07-15 | 2005-07-15 | Power transfer system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2821290Y true CN2821290Y (en) | 2006-09-27 |
Family
ID=37017844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520061653 Expired - Fee Related CN2821290Y (en) | 2005-07-15 | 2005-07-15 | Power transfer system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2821290Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705481A (en) * | 2012-06-19 | 2012-10-03 | 无锡市百顺机械厂 | Carrier gear |
| CN104024688A (en) * | 2012-01-30 | 2014-09-03 | 京瓷办公信息系统株式会社 | Drive power transmission device and optical unit |
| WO2017066946A1 (en) * | 2015-10-21 | 2017-04-27 | 深圳市大疆创新科技有限公司 | Transmission structure, follow focus, execution end of the follow focus, and imaging apparatus |
-
2005
- 2005-07-15 CN CN 200520061653 patent/CN2821290Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104024688A (en) * | 2012-01-30 | 2014-09-03 | 京瓷办公信息系统株式会社 | Drive power transmission device and optical unit |
| CN104024688B (en) * | 2012-01-30 | 2016-11-16 | 京瓷办公信息系统株式会社 | Driving force transfer device and optical unit |
| CN102705481A (en) * | 2012-06-19 | 2012-10-03 | 无锡市百顺机械厂 | Carrier gear |
| WO2017066946A1 (en) * | 2015-10-21 | 2017-04-27 | 深圳市大疆创新科技有限公司 | Transmission structure, follow focus, execution end of the follow focus, and imaging apparatus |
| US10443687B2 (en) | 2015-10-21 | 2019-10-15 | Sz Dji Osmo Technology Co., Ltd. | Transmission mechanism, follow focus, follow focus actuator, and imaging device |
| US11035438B2 (en) | 2015-10-21 | 2021-06-15 | Sz Dji Osmo Technology Co., Ltd. | Transmission mechanism, follow focus, follow focus actuator, and imaging device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060927 |