CN205824060U - A kind of planetary gear type speed change gear - Google Patents
A kind of planetary gear type speed change gear Download PDFInfo
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- CN205824060U CN205824060U CN201620601173.3U CN201620601173U CN205824060U CN 205824060 U CN205824060 U CN 205824060U CN 201620601173 U CN201620601173 U CN 201620601173U CN 205824060 U CN205824060 U CN 205824060U
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- gear
- planet
- speed change
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- sun gear
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Abstract
The utility model discloses a kind of planetary gear type speed change gear, including main shaft, the first planet train being successively set on main shaft and the second planet circular system, and braking system, wherein the second planet circular system is with the first gear ring in first planet train as planet carrier, and the second sun gear in braking system and the second planet circular system is connected.This design compact conformation, it is possible to achieve two notch speed degree export and steadily shift gears；It realizes first order speed change by first planet train and exports, and is realized second level speed change by the second planet circular system with first planet train and coordinating of braking system and is exported by the second planet circular system；It is by the way of braking system gradually locks the second sun gear, the speed making the second planet circular system externally export becomes larger, gearshift stationarity is good, can alleviate ride medium velocity and change suddenly brought pause and transition in rhythm or melody sense, optimizes and rides impression and improve the safety ridden.
Description
Technical field
This utility model relates to the technical field of variator, particularly to a kind of planetary gear type speed change gear.
Background technology
The gearshift of the electric assisted bicycle people that mainly rides is changed and chain by handle bracing wire in the market
The size of the sprocket wheel of engagement.This outer speed change is difficult to regulation due to shift bracing wire, and the factors such as bracing wire tension simultaneously is elongated affect, meeting
Cause gear shift failure or gear entanglement, affect impression of riding and even affect riding safety, furthermore during this gearshift gear shift
Need manually to transfer the files, it is impossible to accomplish automatic gear shifting, have impact on impression of riding to a certain extent.
At Chinese patent application prospectus, CN2015104174416 is difficult to regulation for hand pulling type gearshift and changes
Keeping off failed problem, disclose the gearshift of a kind of electric motor car two speed transmission, described variator includes drive mechanism, deceleration
Mechanism, gearshift, gear selection mechanism etc., its gearshift includes that block selecting spline, block selecting are dialled slotting, and block selecting spline is dialled slotting by block selecting
Pull and engage with top gear gear, or engage with bottom gear gear.This it be designed with electronic gearshift and instead of artificial gearshift,
Making gearshift more convenient, but when gearshift, its speed is change suddenly, pause and transition in rhythm or melody sense is relatively strong, affects ride impression and peace of riding
Entirely.
Utility model content
The purpose of utility model: the open a kind of planetary gear type speed change gear of this utility model, compact conformation, it is possible to achieve
Two notch speed degree export and steadily shift gears；Ride medium velocity can be alleviated and change suddenly brought pause and transition in rhythm or melody sense, optimize
Ride and experience and improve the safety ridden.
Technical scheme: in order to realize object above, the utility model discloses a kind of planetary gear type speed change gear, including
Main shaft, the first planet train being successively set on main shaft and the second planet circular system, and braking system, wherein the second planetary gear
System is with the first gear ring in first planet train as planet carrier, and the second sun gear in braking system and the second planet circular system is connected
Connect.This design compact conformation, it is possible to achieve two notch speed degree export and steadily shift gears；It realizes by first planet train
One-level speed change also exports, and realizes second level change by the second planet circular system with first planet train and coordinating of braking system
Speed is also exported by the second planet circular system；It makes the second planet circular system by the way of braking system gradually locks the second sun gear
Externally the speed of output becomes larger, and gearshift stationarity is good, can alleviate ride medium velocity change suddenly brought
Frustrate sense, optimize and ride impression and improve the safety ridden.
Further, above-mentioned a kind of planetary gear type speed change gear, described first planet wheel fastens and is provided with input gear, the
One planet circular system is with input gear as planet carrier.This design realizes the first order with first planet train with coordinating of input gear
Speed change, compact conformation, reduce the volume of this device.
Further, above-mentioned a kind of planetary gear type speed change gear, described first planet train also include the first sun gear,
The one group of first planet gear being arranged between the first sun gear and the first gear ring and engaging with both respectively and input gear are solid
Fixed one group of first rotating shaft connected, wherein first planet gear be arranged in the first rotating shaft and can around the first axis of rotation, first
The outer ring of gear ring is provided with the first output external tooth；Described second planet circular system also include the second gear ring, be arranged on the second sun gear and
Fix, between second gear ring and respectively with one group of second planetary gear and first gear ring of both engagements, a group second turn be connected
Axle, wherein the second planetary gear is arranged in the second rotating shaft and can be around the second axis of rotation, and the outer ring of the second gear ring is provided with second
Output external tooth.This design drives first planet gear to revolve round the sun around the first sun gear, when the first sun gear by input gear
When maintaining static, the rotational velocity of first planet gear increases, then the first gear ring is under the drive of first planet gear, can be relatively
Input gear externally exports with fixed drive ratio, it is achieved first order speed change；Same principle, drives the second row by the first gear ring
Star gear revolves round the sun around the second sun gear, and when the second sun gear maintains static, the second planetary rotational velocity increases, then
Second gear ring, under the second planetary drive, can externally export with fixed drive ratio by relative first gear ring, it is achieved the second level
Speed change；The design being provided with output external tooth outside gear ring makes the more compact structure of this device；It addition, the design of this epicyclic train
Also having stable transmission, bearing capacity is high and transmits high-power feature.
Further, above-mentioned a kind of planetary gear type speed change gear, described first sun gear is provided with the first beam barrel, and described the
Two sun gears are provided with the second beam barrel；First sun gear, the first gear ring are arranged on main shaft by one group of bearing respectively, input gear
It is arranged on the first beam barrel by one group of bearing；Second sun gear is arranged on main shaft by one group of bearing, and the second gear ring passes through
One group of bearing is arranged on the second beam barrel.This design makes compact conformation, body under conditions of ensureing stable transmission as far as possible
Long-pending reduction；The setting of this multiple bearing makes the rotation between each parts more steady with smooth and easy, and ensures rotating accuracy.
Further, above-mentioned a kind of planetary gear type speed change gear, described first sun gear is by unilateral bearing and outside
Casing is connected.This design, vehicle is when properly functioning, and the first sun gear maintains static under unilateral bearing effect, it is achieved
First order speed change；When speed bust or vehicle reverse, or in the case of other, there is applied external force to feed back to system, make
During one gear ring reversion, the first sun gear can rotate backward under unilateral bearing effect, is so possible to prevent input gear to invert
And then cause motor reversal, it is also possible to prevent abnormal high pulling torque from causing the damage of drive disk assembly, play a protective role, improve change
The stability that speed variator runs.
Further, above-mentioned a kind of planetary gear type speed change gear, described braking system includes driving means, actuating device
With one group of locking device, one of which locking device is distributed in the second sun gear periphery, actuating device one end and driving means phase
Connecting, the other end and one group of locking device are connected, and locking device can be around the second sun gear rotation under the drive of actuating device
Turn and move closer to the second sun gear and compress；Locking device is provided with elastic component, and is connected with actuating device by elastic component.
This design by locking actuating device gradually by locking device by the most locked for the second sun gear, during locked, second too
The rotating speed of sun wheel slowly reduces, and the second planetary rotational velocity slowly increases, and the rotating speed of the second gear ring can be gradually increasing directly
Locked to the second sun gear, now the rotating speed of the second gear ring reaches steady state value, the mild second level speed change rather than suddenly of realizing
Rise to rated speed, gearshift procedure can alleviate speed and change suddenly the pause and transition in rhythm or melody sense brought, optimize impression of riding, and
Improve the safety ridden.
Further, above-mentioned a kind of planetary gear type speed change gear, described braking system is additionally provided with controller and sensor.
This design by sensor detection speed pass the result to controller, when speed reach gearshift require time, control unit
Sending instruction makes braking system start working, it is achieved self shifter.
Further, above-mentioned a kind of planetary gear type speed change gear, described one group of locking device end is provided with friction plate.This
Planting design utilizes friction plate to improve the frictional force between locking device and the second sun gear, only needs less elastic force suitable with regard to producing
When frictional force, in order to reduce the rotating speed of the second sun gear；When after the hard contact being transferred to frame for movement by the soft contact of elastic component,
Locking the second sun gear that its sufficiently large frictional force ability is reliable and stable.
Technique scheme is it can be seen that this utility model has the advantages that one described in the utility model
Planetary gear type speed change gear, this design compact conformation, volume is little, and bearing capacity is high and transmission power is big；Rotate more flat
Steady with smooth and easy, rotating accuracy is high；Two notch speed degree outputs can be realized and steadily shift gears；It gradually locks the by braking system
The mode of two sun gears, the speed making the second planet circular system externally export becomes larger, and gearshift stationarity is good, can alleviate and ride
During speed change suddenly brought pause and transition in rhythm or melody sense, optimizing ride impression and improve the safety ridden；When speed is dashed forward
Fall or vehicle reverse, the first sun gear can rotate backward under unilateral bearing effect, play a protective role, improve speed change
The stability of plant running.
Accompanying drawing explanation
Fig. 1 is the detonation configuration figure of a kind of planetary gear type speed change gear described in the utility model；
Fig. 2 is the cross-section structure removing braking system of a kind of planetary gear type speed change gear described in the utility model
Figure；
Fig. 3 is the structure chart of a kind of planetary gear type speed change gear braking system described in the utility model；
Fig. 4 is the structure chart of the upper cover of a kind of planetary gear type speed change gear braking system described in the utility model；
In figure: 1-main shaft, 2-first planet train, 21-the first gear ring, 211-first exports external tooth, 22-first sun
Wheel, 221-the first beam barrel, 23-first planet gear, 24-the first rotating shaft, 3-the second planet circular system, 31-the second sun gear, 311-
Second beam barrel, 32-the second gear ring, 321-second exports external tooth, 33-the second planetary gear, 34-the second rotating shaft, 4-braking system,
41-driving means, 411-motor, 412-motor gear, 42-actuating device, 421-gear, 422-worm screw, 423-straight-tooth
Wheel, 43-locking device, 431-elastic component, 432-locking sliding block, 433-locking pin, 434-friction plate, 44-variator rotating shaft,
45-base, 46-upper cover, 451,461-special-shaped slot, 452,462-boss, 5-input gear.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model detailed description of the invention is described in detail.
Embodiment
A kind of planetary gear type speed change gear of the present utility model, as shown in Figures 1 to 4, including main shaft 1, sets gradually
First planet train 2 on main shaft 1 and the second planet circular system 3, and braking system 4.
First planet train 2 is provided with input gear 5, and first planet train 2 is with input gear 5 as planet carrier；Described
One planet circular system 2 also includes first gear ring the 21, first sun gear 22, is arranged between the first sun gear 22 and the first gear ring 21 also
One group first rotating shaft 24, Qi Zhong being connected fixing with input gear 5 with one group of first planet gear 23 of both engagements respectively
One planetary gear 23 is arranged in the first rotating shaft 24 and can rotate around the first rotating shaft 24, and it is defeated that the outer ring of the first gear ring 21 is provided with first
Going out external tooth 211, inner ring is provided with internal tooth, and the quantity of first planet gear 23 and the first rotating shaft 24 is 3, it is also possible to for other numbers
Mesh；First sun gear 22 is connected with external box of microvave by unilateral bearing, and the i.e. first sun gear 22 can only be around unidirectional turn of main shaft 1
Dynamic；First sun gear 22 is provided with the first beam barrel 221, and first sun gear the 22, first gear ring 21 is arranged on by one group of bearing respectively
On main shaft 1, input gear 5 is arranged on the first beam barrel 221 by one group of bearing.When external drive drives input gear 5 to rotate
Time, because the first sun gear 22 maintains static under the effect of unilateral bearing, first planet gear 23 is both public around the first sun gear 22
Turning and do again rotation, make the first gear ring 21 speedup rotate and export, drive outer chains wheel to rotate, this is first order speed change.Above institute
State gear train and be first planet train 2.
Second planet circular system 3 is with the first gear ring 21 in first planet train 2 as planet carrier, and the second planet circular system 3 includes
Second sun gear the 31, second gear ring 32, it is arranged between the second sun gear 31 and the second gear ring 32 and engages with both respectively
One group of second planetary gear 33 and the first fixing one group of second rotating shaft 34 being connected of gear ring 21, wherein the second planetary gear 33 is pacified
Being contained in the second rotating shaft 34 and can rotate around the second rotating shaft 34, the outer ring of the second gear ring 32 is provided with the second output external tooth 321, inner ring
It is provided with internal tooth；The quantity of the second planetary gear 33 and the second rotating shaft 34 is 3, it is also possible to for other numbers；Second sun gear
31 are provided with the second beam barrel 311, and braking system 4 is connected with the second beam barrel 311 of the second sun gear 31；Second sun gear 31 passes through
One group of bearing is arranged on main shaft 1, and the second gear ring 32 is arranged on the second beam barrel 311 by one group of bearing and can rotate around it.
When first order chronotropic action, the planet carrier (the i.e. first gear ring 21) of the second planet circular system 3 is rotating always, and the second sun gear
31 is freely rotatable with the second gear ring (32), when speed reaches gear shift requirement, braking system 4 by the most locked for the second sun gear 31,
During locked, the rotating speed of the second sun gear 31 slowly reduces, and the rotational velocity of the second planetary gear 33 gradually rises, and second
The rotating speed of gear ring 32 can be gradually increasing, until the second sun gear 31 is locked, the rotating speed of the second gear ring 32 reaches steady state value, then and second
Gear ring 32 can rotate with fixed drive ratio relative to the first gear ring 21 and externally export, and drives outer chains to take turns rotation, and this is the second level
Speed change.The above gear train is the second planet circular system 3.
Braking system 4 includes driving means 41, actuating device 42 and one group of locking device 43, also includes offering one respectively
The base 45 of group special-shaped slot 451,461 and upper cover 46, one of which locking device 43 is distributed in the second beam barrel 311 periphery, transmission
Device 42 one end is connected with driving means 41, and the other end and one group of locking device 43 are connected, and locking device 43 can pass
Rotate around the second beam barrel 311 under the drive of dynamic device 42 and move closer to the second beam barrel 311 and compress.Base 45 and upper cover 46
Being respectively equipped with boss 452,462, special-shaped slot 451,461 is opened on boss 452,462 respectively；Locking device 43 includes elastic component
431, locking sliding block 432 and locking pin 433；Actuating device 42 includes gear 421, and the worm screw 422 engaged with gear 421, with snail
The spur gear 423 that bar 422 is coaxially disposed, its middle gear 421 is worm gear, and spur gear 423 is connected with driving means 41；Drive dress
Put 41 and include that motor 411 and motor gear 412, motor 411 are connected with outside controller and sensor, motor tooth
Wheel 412 engages with spur gear 423.The wherein gear 421 phase clamping of locking sliding block 432 and actuating device 42, elastic component 431 one end
Being connected with locking sliding block 432, the other end is connected with gear 421, and elastic component 431 is compression spring, locking sliding block 432 side opening two
Hole, is used for installing elastic component 431；Opening hole in the middle of locking sliding block 432, locking pin 433 via through holes passes locking sliding block 432 and two
End is connected with special-shaped slot 451,461 respectively.Described gear 421 is internal is provided with one group of lobe, and locking sliding block 432 is fastened on adjacent
Between two lobe, wherein locking sliding block 432 dual-side is parallel to each other, accordingly, and the draw-in groove that adjacent two lobe are formed
Side be also parallel to each other；Locking sliding block 432 end is provided with groove, is arranged with friction plate 434, wherein friction plate 434 in groove
The end face of prominent locking sliding block 432.The quantity of above-mentioned locking device 43 is 3, and accordingly, the quantity of special-shaped slot 451,461 is divided
It is not 3, all circular array shape distributions centered by the second beam barrel 311 of locking device 43 and special-shaped slot 451,461.Described different
The shape groove 451,461 radial distance away from the second beam barrel 311 center tapers into towards gear 421 gyratory directions；Special-shaped slot 451,
461 include the first limiting section and the second limiting section, and the first limiting section is at that end of radial distance maximum and near the second axle
That sidewall of cylinder 311, the second limiting section is that end in radial distance minimum and that side away from the second beam barrel 311
Wall；Minimum range between first limiting section and the second beam barrel 311 outer surface is more than locking device 43 (i.e. friction plate foremost
The prominent front end face of 434) arrive the minimum range between locking pin 433 outer surface, the second limiting section and the second beam barrel 311 appearance
Minimum range between face arrives locking equal to or slightly less than locking device 43 (i.e. the prominent front end face of friction plate 434) foremost
Ultimate range between pin 433 outer surface.
When normal vehicle operation, the first limiting section contacts and limits the position of locking device 43 with locking pin 433, prevents
It contacts with the second beam barrel 311, and impact is normal to travel；When bicyclist's riding speed or required torque reach gear shift requirement, control
Device processed sends action command, carries out self shifter, and motor 411 operates, and drives step by step through actuating device 42, and gear 421 rotates
And driving locking device 43 to rotate, locking pin 433 moves under the regulation of special-shaped slot 451,461 simultaneously, then locking device 43 meeting
Rotating while close to the second beam barrel 311, in approach process, locking device 43 can be in elastic component 431(compression spring)
Effect is lower first to be contacted with the second beam barrel 311, because elastic component 431(compression spring) elastic force less, frictional force deficiency is so that the
Two beam barrels 311 are stopped extremely, but can slowly reduce the rotating speed of the second beam barrel 311, when motor 411 is rotated further, and locking pin 433 enters
During minimum that end of radial distance, the second limiting section contacts with locking pin 433 and compresses, and makes locking device 43 and the second beam barrel
Realizing the hard contact of frame for movement between 311, the second beam barrel 311 will be locked.
Described braking system can be various ways, if possess can by function locked for the second sun gear 31,
And for realizing fluid drive, described braking system can be by the element drives of electrical control by motor, electromagnetism etc..
The above is only preferred implementation of the present utility model, it should be noted that for the ordinary skill of the art
For personnel, on the premise of without departing from this utility model principle, it is also possible to make some improvement, these improve and also should be regarded as this
The protection domain of utility model.
Claims (8)
1. a planetary gear type speed change gear, it is characterised in that: include main shaft (1), be successively set on first on main shaft (1)
Planet circular system (2) and the second planet circular system (3), and braking system (4), wherein the second planet circular system (3) is with the first row star-wheel
The first gear ring (21) in system (2) is planet carrier, braking system (4) and the second sun gear (31) in the second planet circular system (3)
It is connected.
A kind of planetary gear type speed change gear the most according to claim 1, it is characterised in that: described first planet train
(2) be provided with input gear (5), first planet train (2) with input gear (5) as planet carrier.
A kind of planetary gear type speed change gear the most according to claim 2, it is characterised in that: described first planet train
(2) also include the first sun gear (22), be arranged between the first sun gear (22) and the first gear ring (21) and nibble with both respectively
The one group of first planet gear (23) closed one group first rotating shaft (24) being connected fixing with input gear (5), wherein first planet
Gear (23) is arranged on the first rotating shaft (24) and above and can rotate around the first rotating shaft (24), and the outer ring of the first gear ring (21) is provided with first
Output external tooth (211)；Described second planet circular system (3) also includes the second gear ring (32), is arranged on the second sun gear (31) and
Between two gear rings (32) and respectively with one group of second planetary gear (33) of both engagements and the first gear ring (21) fixing it is connected
One group of second rotating shaft (34), wherein the second planetary gear (33) is arranged in the second rotating shaft (34) and can turn around the second rotating shaft (34)
Dynamic, the outer ring of the second gear ring (32) is provided with the second output external tooth (321).
A kind of planetary gear type speed change gear the most according to claim 3, it is characterised in that: described first sun gear (22)
Being provided with the first beam barrel (221), described second sun gear (31) is provided with the second beam barrel (311)；First sun gear (22), the first gear ring
(21) being arranged on main shaft (1) by one group of bearing respectively, input gear (5) is arranged on the first beam barrel by one group of bearing
(221) on；Second sun gear (31) is arranged on main shaft (1) by one group of bearing, and the second gear ring (32) is pacified by one group of bearing
It is contained on the second beam barrel (311).
A kind of planetary gear type speed change gear the most according to claim 3, it is characterised in that: described first sun gear (22)
It is connected with external box of microvave by unilateral bearing.
A kind of planetary gear type speed change gear the most according to claim 1, it is characterised in that: described braking system (4) wraps
Including driving means (41), actuating device (42) and one group of locking device (43), one of which locking device (43) is distributed in second
Sun gear (31) periphery, actuating device (42) one end is connected with driving means (41), the other end and one group of locking device (43)
Being connected, locking device (43) can rotate and to second sun around the second sun gear (31) under the drive of actuating device (42)
Wheel (31) moves closer to and compresses；Locking device (43) is provided with elastic component (431), and by elastic component (431) and actuating device
(42) connect.
A kind of planetary gear type speed change gear the most according to claim 6, it is characterised in that: described braking system (4) is also
It is provided with controller and sensor.
A kind of planetary gear type speed change gear the most according to claim 6, it is characterised in that: described one group of locking device
(43) end is provided with friction plate (434).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620601173.3U CN205824060U (en) | 2016-06-20 | 2016-06-20 | A kind of planetary gear type speed change gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620601173.3U CN205824060U (en) | 2016-06-20 | 2016-06-20 | A kind of planetary gear type speed change gear |
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| Publication Number | Publication Date |
|---|---|
| CN205824060U true CN205824060U (en) | 2016-12-21 |
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ID=58145395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620601173.3U Active CN205824060U (en) | 2016-06-20 | 2016-06-20 | A kind of planetary gear type speed change gear |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606135A (en) * | 2017-10-25 | 2018-01-19 | 上海荣乐汽车电子有限公司 | A kind of electric gear change executing agency of small size high torque |
| CN108134200A (en) * | 2017-12-22 | 2018-06-08 | 东莞市本量电子科技有限公司 | A kind of built-in bi-motor changes six grades of electric turning antenna driver |
-
2016
- 2016-06-20 CN CN201620601173.3U patent/CN205824060U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606135A (en) * | 2017-10-25 | 2018-01-19 | 上海荣乐汽车电子有限公司 | A kind of electric gear change executing agency of small size high torque |
| CN108134200A (en) * | 2017-12-22 | 2018-06-08 | 东莞市本量电子科技有限公司 | A kind of built-in bi-motor changes six grades of electric turning antenna driver |
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