CN206278219U - A kind of three-step gear shift drive device of speed change stabilization - Google Patents
A kind of three-step gear shift drive device of speed change stabilization Download PDFInfo
- Publication number
- CN206278219U CN206278219U CN201621335511.XU CN201621335511U CN206278219U CN 206278219 U CN206278219 U CN 206278219U CN 201621335511 U CN201621335511 U CN 201621335511U CN 206278219 U CN206278219 U CN 206278219U
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- China
- Prior art keywords
- ratchet
- input
- output
- fixed mount
- speed change
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Abstract
The utility model discloses a kind of three-step gear shift drive device of speed change stabilization, including：Wheel hub, central shaft, the gear being arranged between wheel hub and central shaft and fork shift mechanism, the gear include：Planetary transmission, input gearshift and output gearshift, the planetary transmission include：Gear ring, centre wheel, planetary gear and planet carrier, the input gearshift include：Input ratchet fixed mount and the several first input ratchets and several second input ratchets that are installed on input ratchet fixed mount, the output gearshift include：Output ratchet fixed mount and the several output centrifugal ratchets being installed on output ratchet fixed mount, the output ratchet fixed mount are fixedly connected with wheel hub, and the fork shift mechanism includes：Shifting sleeve and fork shift bar, are connected between the shifting sleeve and fork shift bar by fork shift drive link, the utility model by setting in wheel hub a set of centrifugation gearshift and a set of manual gear shift mechanism, so as to three-step gear shift can be realized.
Description
【Technical field】
The utility model is related to technical field of bicycles, and in particular to a kind of three-step gear shift drive device of speed change stabilization.
【Background technology】
Bicycle speed-varying unit is divided into two kinds of internal speed changer and outer speed changer, outer speed changer be use open link chain mechanism for
Transmission system, transforms to chain by stirring the selector being installed in front of bicycle and different chains is realized on different flywheels
Bar gearratio, because outer speed changer is exposed outside, therefore is easier to get rusty, and is easily disturbed by external force, so through
Often periodic maintenance is needed to maintain, internal speed changer is mainly using planetary gears as transmission main body, is sealed in inside flower-drum,
By multilayer special seal material protection, so rainwater, dust, grease etc. cannot be introduced into, therefore without time-based maintenance, realize and exempt from
The advantage of maintenance.
【Utility model content】
To solve the above problems, the purpose of this utility model is to provide a kind of transmission efficiency, the three-level of speed change stabilization
Speed-changing driving device.
To achieve the above object, the technical scheme that the utility model is taken is：A kind of three-step gear shift of speed change stabilization drives
Device, including：Wheel hub, central shaft, the gear being arranged between wheel hub and central shaft and fork shift mechanism, the gear
Including：Planetary transmission, input gearshift and output gearshift, the planetary transmission include：Gear ring, centre wheel, OK
Star-wheel and planet carrier, the centre wheel are fixedly connected or are integrally formed with central shaft, and the input gearshift includes：Input spine
Pawl fixed mount and the several first input ratchets and several second input ratchets that are installed on input ratchet fixed mount, described first
Input ratchet, the second input ratchet are installed on input ratchet fixed mount by connector, are set on the input ratchet fixed mount
Have for controlling the first the first elastic portion for being input into ratchet initial position and for controlling second to be input into the of ratchet initial position
Two elastic portions, the output gearshift includes：Export ratchet fixed mount and be installed on several defeated on output ratchet fixed mount
Go out centrifugal ratchet, the 3rd elasticity for controlled output centrifugal ratchet initial position is installed on the output ratchet fixed mount
Portion, the output ratchet fixed mount is fixedly connected with wheel hub, and the output centrifugal ratchet includes main part and is arranged at main part
Balancing weight on the one side of one end, one end of the main part is provided with two-sided ratchet, and the other end of the main part is provided with fixed
Position hole, the balancing weight is arranged at same one end with two-sided ratchet, and one end of the gear ring is provided with and is engaged with the first input ratchet
The first ratchet, one end of the planet carrier is provided with the second ratchet being engaged with the second input ratchet, the gear ring it is another
End forms host cavity with the other end of planet carrier, and the main part of the output centrifugal ratchet is contained in host cavity, the gear ring
The inwall in host cavity is provided with, the handle ratchet wheel being engaged with output centrifugal ratchet is provided with the inwall of the gear ring, it is described
Planet carrier is provided with the outer wall in host cavity, and the outer spine being engaged with output centrifugal ratchet is provided with the outer wall of the planet carrier
Wheel, the inner face ratchet portion of the two-sided ratchet is engaged with outer ratchet, outside ratchet portion and the handle ratchet wheel phase of the two-sided ratchet
Coordinate, the fork shift mechanism includes：Shifting sleeve and fork shift bar, are connected between the shifting sleeve and fork shift bar by fork shift drive link
Connect, the shifting sleeve is sheathed on central shaft, the fork shift bar is arranged in central shaft and can be moved axially relative to central shaft,
The central shaft is provided with the chute with fork shift transmission rod.
A kind of three-step gear shift drive device of speed change stabilization in the utility model is further arranged to：The output centrifugation
The ratchet tooth form of the two-sided ratchet of ratchet is that can not surmount accompanying trapezoidal toothed.
A kind of three-step gear shift drive device of speed change stabilization in the utility model is further arranged to：The handle ratchet wheel and
The ratchet tooth form of outer ratchet is that can not surmount accompanying trapezoidal toothed.
A kind of three-step gear shift drive device of speed change stabilization in the utility model is further arranged to：Several outputs
Connected by balancing pull rod between centrifugal ratchet.
A kind of three-step gear shift drive device of speed change stabilization in the utility model is further arranged to：The shifting sleeve
Outside is provided with the boss being engaged with the first input ratchet and the second input ratchet.
A kind of three-step gear shift drive device of speed change stabilization in the utility model is further arranged to：The input ratchet
One end of fixed mount is provided with first and tight part, and the first ball, institute are provided between the input ratchet fixed mount and first and tight part
The one end for stating output ratchet fixed mount is provided with second and tight part, and the is provided between the output ratchet fixed mount and second and tight part
Two balls.
A kind of three-step gear shift drive device of speed change stabilization in the utility model is further arranged to：The input ratchet
The 3rd ball is provided between fixed mount and wheel hub.
A kind of three-step gear shift drive device of speed change stabilization in the utility model is further arranged to：First elasticity
Portion, the second elastic portion and the 3rd elastic portion are torsion spring, spring or spring leaf.
A kind of three-step gear shift drive device of speed change stabilization in the utility model is further arranged to：The connector
It is pin.
A kind of three-step gear shift drive device of speed change stabilization in the utility model is further arranged to：The shifting sleeve with
Back-moving spring is provided between centre wheel.
Compared with prior art, the utility model has the advantages that：Three-step gear shift in the utility model drives
Apparatus structure is compact, easy for installation, transmission efficiency, firm, speed change stabilization of shifting gears, and is changed by setting a set of centrifugation in wheel hub
Retaining device and a set of manual gear shift mechanism, so as to three-step gear shift can be realized.
【Brief description of the drawings】
Fig. 1 is the main structure diagram of three-step gear shift drive device in the utility model.
Fig. 2 is the decomposition texture schematic diagram of three-step gear shift drive device in the utility model.
Fig. 3 is the cross section structure diagram along line A-A shown in Fig. 1.
In figure：1st, wheel hub, 2, central shaft, 20, chute, 3, gear, 4, fork shift mechanism, 40, shifting sleeve, 400, convex
Platform, 401, back-moving spring, 41, fork shift bar, 42, fork shift drive link, 5, planetary transmission, 50, gear ring, the 500, first ratchet,
501st, handle ratchet wheel, 51, centre wheel, 52, planetary gear, 53, planet carrier, the 530, second ratchet, 531, outer ratchet, 54, host cavity, 6,
Input gearshift, 60, input ratchet fixed mount, the 600, first elastic portion, the 601, second elastic portion, 61, first input ratchet,
62nd, second input ratchet, 63, pin, 7, output gearshift, 70, output ratchet fixed mount, the 700, the 3rd elastic portion, 71, output
Centrifugal ratchet, 710, main part, 711, balancing weight, 712, two-sided ratchet, 7120, inner face ratchet portion, 7121, outside ratchet portion,
713rd, location hole, 8, first and tight part, 9, second and tight part.
【Specific embodiment】
A kind of three-step gear shift drive device of speed change stabilization described in the utility model is made below by specific embodiment
It is described in further detail.
Shown in ginseng Fig. 1 to Fig. 3, a kind of three-step gear shift drive device of speed change stabilization, including：Wheel hub 1, central shaft 2, setting
Gear 3 and fork shift mechanism 4 between wheel hub 1 and central shaft 2.
The gear 3 includes：Planetary transmission 5, input gearshift 6 and output gearshift 7, the planet become
Fast device 5 includes：Gear ring 50, centre wheel 51, planetary gear 52 and planet carrier 53, the centre wheel 51 be fixedly connected with central shaft 2 or
It is integrally formed, the input gearshift 6 includes：Input ratchet fixed mount 60 and the number being installed on input ratchet fixed mount 60
Individual first input ratchet 61 and several second input ratchets 62, the first input ratchet 61, second input ratchet 62 pass through pin
63 are installed on input ratchet fixed mount 60, and the input ratchet fixed mount 60 is provided with the beginning of for controlling first to be input into ratchet 61
Beginning position the first elastic portion 600, the input ratchet fixed mount 60 is provided with for controlling second to be input into the initial bit of ratchet 62
The second elastic portion 601 put, the output gearshift 7 includes：Export ratchet fixed mount 70 and be installed on output ratchet and fix
Several output centrifugal ratchets 71 on frame 70, are connected between several output centrifugal ratchets 71 by balancing pull rod.The output spine
The 3rd elastic portion 700 for the initial position of controlled output centrifugal ratchet 71, first elasticity are installed on pawl fixed mount 70
Portion 600, the second elastic portion 601, the 3rd elastic portion 700 can be torsion spring, spring or spring leaf.The output ratchet fixed mount 70
It is fixedly connected with wheel hub 1, the output centrifugal ratchet 71 includes main part 710 and is arranged at the one side of the one end of main part 710
On balancing weight 711, one end of the main part 710 is provided with two-sided ratchet 712, and the other end of the main part 710 is provided with fixed
Position hole 713, the balancing weight 711 is arranged at same one end with two-sided ratchet 712, and one end of the gear ring 50 is provided with and the first input
The first ratchet 500 that ratchet 61 is engaged, one end of the planet carrier 53 is provided be engaged with the second input ratchet 62 second
Ratchet 530, the other end of the gear ring 50 forms host cavity 54 with the other end of planet carrier 53, and the main part 710 is contained in
In host cavity 54, the gear ring 50 is provided with the inwall in host cavity 54, be provided with the inwall of the gear ring 50 with output from
The handle ratchet wheel 501 that heart ratchet 71 is engaged, the planet carrier 53 is provided with the outer wall in host cavity 54, the planet carrier 53
Be provided with outer wall with the output outer ratchet 531 that is engaged of centrifugal ratchet 71, the inner face ratchet portion 7120 of the two-sided ratchet 712 with
Outer ratchet 531 is engaged, and the outside ratchet portion 7121 of the two-sided ratchet 712 is engaged with handle ratchet wheel 501.The two-sided ratchet
712 inner face ratchet portion 7120 and the tooth form in outside ratchet portion 7121 are and can not surmount accompanying trapezoidal toothed, the interior spine
The ratchet tooth form of wheel 501 and outer ratchet 531 is and can not surmount accompanying trapezoidal toothed, so sets and is advantageous in that：Can not
Surmount retinue, can only run-in synchronism, shift gears it is more stable.One end of the input ratchet fixed mount 60 is provided with first and tight part 8,
The first ball, one end of the output ratchet fixed mount 70 are provided between the input ratchet fixed mount 60 and first and tight part 8
Second and tight part 9 are provided with, the second ball is provided between the output ratchet fixed mount 70 and second and tight part 9.The input spine
The 3rd ball is provided between pawl fixed mount 60 and wheel hub 1.
The fork shift mechanism 4 includes：Shifting sleeve 40 and fork shift bar 41, by dialling between the shifting sleeve 40 and fork shift bar 41
Shelves drive link 42 is connected, and the shifting sleeve 40 is sheathed on central shaft 2, and the fork shift bar 41 is arranged in central shaft 2 and can phase
Make to move back and forth for central shaft 2, the central shaft 2 is provided with the chute 20 being engaged with fork shift drive link 42, the shifting sleeve
40 outside is provided with the boss 400 being engaged with the first input input ratchet 62 of ratchet 61 and second, in the present embodiment, institute
State and back-moving spring 401 is provided between shifting sleeve 40 and centre wheel 51, certainly in other implementations, the back-moving spring
401 may also set up between fork shift drive link 42 and central shaft 2.
The operation principle of three-step gear shift drive device is in the utility model：Power is input into by input ratchet fixed mount 60,
By being exported by output ratchet fixed mount 70 after the speed change of gear 3, fixed with wheel hub 1 due to output ratchet fixed mount 70 and connected
Connect, therefore final power is exported from wheel hub 1, the gear 3 in the utility model realizes three-step gear shift altogether, during initial position,
Shifting sleeve 40 be located at low order end, first input ratchet 61 opens, second input ratchet 62 closes, it is described first input ratchet 61 with
The first ratchet 500 on gear ring 50 is meshed, therefore power is transferred to gear ring 50 by input detent mounts 60, by planetary gear
52 transmission, gear ring 50 delivers power to planet carrier 53, during output 71 initial position of centrifugal ratchet, two-sided ratchet 712 it is interior
Face ratchet portion 7120 is meshed with the outer ratchet 531 of planet carrier 53, therefore planet carrier 53 delivers power to output ratchet and consolidates again
Determine frame 70 and output centrifugal ratchet 71, it is final to drive wheel hub 1 to rotate, slow shelves speed change is realized, it is mobile manually when speed to be accelerated
Fork shift bar 41, fork shift bar 41 is moved from right to left, so that the second input ratchet 62 is opened, the first input ratchet 61 is closed,
Second input ratchet 62 is meshed after opening with second ratchet 530 of the one end of planet carrier 53, and the first input ratchet 61 is closed
The first ratchet 500 with gear ring 50 is disengaged from afterwards, therefore, power is transferred to planet carrier 53 by input detent mounts 60, this
When output centrifugal ratchet 71 the inner face ratchet portion 7120 of two-sided ratchet 712 be still meshed with the outer ratchet 531 of planet carrier 53,
Therefore power is input into by planet carrier 53, then is exported by planet carrier 53, is formed one to one and is exported, and realizes middle-grade speed change, when input speed
When degree is accelerated again, the balancing weight 711 for exporting centrifugal ratchet 71 is moved to the direction away from axle center under the influence of centrifugal force so that
The inner face ratchet portion 7120 for exporting centrifugal ratchet 71 is separated with the outer ratchet 531 of planet carrier 53 so that output centrifugal ratchet 71
Outside ratchet portion 7121 be meshed with the handle ratchet wheel 501 of gear ring 50, therefore, power is transferred to row by input ratchet fixed mount 60
Carrier 53, then output ratchet fixed mount 70 and output centrifugal ratchet 71 are transferred to by gear ring 50, it is final to drive wheel hub 1 to rotate, it is real
Existing fast shelves speed change.
In sum, three-step gear shift driving device structure in the utility model is compact, easy for installation, transmission efficiency,
Gearshift is firm, speed change stabilization, by setting a set of centrifugation gearshift and a set of manual gear shift mechanism in wheel hub, so that can be real
Existing three-step gear shift.
Principle and its effect that the above embodiments only illustrative the utility model is created, and the reality that part uses
Example is applied, not for limitation the utility model；It should be pointed out that for the person of ordinary skill of the art, not departing from this
On the premise of utility model creates design, various modifications and improvements can be made, these belong to protection of the present utility model
Scope.
Claims (10)
1. the three-step gear shift drive device that a kind of speed change is stablized, it is characterised in that including：Wheel hub, central shaft, be arranged at wheel hub with
Gear and fork shift mechanism between central shaft, the gear include：Planetary transmission, input gearshift and output
Gearshift, the planetary transmission includes：Gear ring, centre wheel, planetary gear and planet carrier, the centre wheel are fixed with central shaft
Connect or be integrally formed, the input gearshift includes：It is input into ratchet fixed mount and is installed on input ratchet fixed mount
Several first input ratchets and several second input ratchets, the first input ratchet, the second input ratchet are pacified by connector
Loaded on input ratchet fixed mount, the input ratchet fixed mount is provided with for controlling first to be input into the of ratchet initial position
One elastic portion and the second elastic portion for controlling the second input ratchet initial position, the output gearshift include：Output
Ratchet fixed mount and the several output centrifugal ratchets being installed on output ratchet fixed mount, install on the output ratchet fixed mount
There is the 3rd elastic portion for controlled output centrifugal ratchet initial position, the output ratchet fixed mount is fixedly connected with wheel hub,
The output centrifugal ratchet includes main part and the balancing weight being arranged on the one side of main part one end, the one of the main part
End is provided with two-sided ratchet, and the other end of the main part is provided with location hole, and the balancing weight is arranged at same one end with two-sided ratchet,
One end of the gear ring is provided with the first ratchet being engaged with the first input ratchet, and one end of the planet carrier is provided with defeated with second
Enter the second ratchet that ratchet is engaged, the other end of the gear ring and the other end of planet carrier form host cavity, the output from
The main part of heart ratchet is contained in host cavity, and the gear ring is provided with the inwall in host cavity, at the inwall of the gear ring
The handle ratchet wheel being engaged with output centrifugal ratchet is provided with, the planet carrier is provided with the outer wall in host cavity, the planet carrier
Outer wall at be provided with and export the outer ratchet that is engaged of centrifugal ratchet, inner face ratchet portion and the outer ratchet of the two-sided ratchet match
Close, the outside ratchet portion of the two-sided ratchet is engaged with handle ratchet wheel, and the fork shift mechanism includes：Shifting sleeve and fork shift bar, institute
State and connected by fork shift drive link between shifting sleeve and fork shift bar, the shifting sleeve is sheathed on central shaft, the fork shift bar sets
It is placed in central shaft and can be moved axially relative to central shaft, the central shaft is provided with the chute with fork shift transmission rod.
2. the three-step gear shift drive device that a kind of speed change as claimed in claim 1 is stablized, it is characterised in that：The output centrifugation
The ratchet tooth form of the two-sided ratchet of ratchet is that can not surmount accompanying trapezoidal toothed.
3. the three-step gear shift drive device that a kind of speed change as claimed in claim 1 is stablized, it is characterised in that：The handle ratchet wheel and
The ratchet tooth form of outer ratchet is that can not surmount accompanying trapezoidal toothed.
4. the three-step gear shift drive device that a kind of speed change as claimed in claim 1 is stablized, it is characterised in that：Several outputs
Connected by balancing pull rod between centrifugal ratchet.
5. the three-step gear shift drive device that a kind of speed change as claimed in claim 1 is stablized, it is characterised in that：The shifting sleeve
Outside is provided with the boss being engaged with the first input ratchet and the second input ratchet.
6. the three-step gear shift drive device that a kind of speed change as claimed in claim 1 is stablized, it is characterised in that：The input ratchet
One end of fixed mount is provided with first and tight part, and the first ball, institute are provided between the input ratchet fixed mount and first and tight part
The one end for stating output ratchet fixed mount is provided with second and tight part, and the is provided between the output ratchet fixed mount and second and tight part
Two balls.
7. the three-step gear shift drive device that a kind of speed change as claimed in claim 1 is stablized, it is characterised in that：The input ratchet
The 3rd ball is provided between fixed mount and wheel hub.
8. the three-step gear shift drive device that a kind of speed change as claimed in claim 1 is stablized, it is characterised in that：First elasticity
Portion, the second elastic portion and the 3rd elastic portion are torsion spring, spring or spring leaf.
9. the three-step gear shift drive device that a kind of speed change as claimed in claim 1 is stablized, it is characterised in that：The connector is
Pin.
10. the three-step gear shift drive device that a kind of speed change as claimed in claim 1 is stablized, it is characterised in that：The shifting sleeve
Back-moving spring is provided between centre wheel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620996416 | 2016-08-31 | ||
| CN2016209964168 | 2016-08-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206278219U true CN206278219U (en) | 2017-06-27 |
Family
ID=59074465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621335511.XU Withdrawn - After Issue CN206278219U (en) | 2016-08-31 | 2016-12-07 | A kind of three-step gear shift drive device of speed change stabilization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206278219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106428403A (en) * | 2016-08-31 | 2017-02-22 | 张家港川梭车业有限公司 | Three-level variable-speed drive device stable in speed change |
-
2016
- 2016-12-07 CN CN201621335511.XU patent/CN206278219U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106428403A (en) * | 2016-08-31 | 2017-02-22 | 张家港川梭车业有限公司 | Three-level variable-speed drive device stable in speed change |
| CN106428403B (en) * | 2016-08-31 | 2021-11-02 | 张家港川梭车业有限公司 | Stable tertiary variable speed drive arrangement changes speed |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170627 Effective date of abandoning: 20211102 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170627 Effective date of abandoning: 20211102 |