CN206797622U - A kind of portable gear of gearshift three speed change gear of single wheel drive ratchet - Google Patents
A kind of portable gear of gearshift three speed change gear of single wheel drive ratchet Download PDFInfo
- Publication number
- CN206797622U CN206797622U CN201720522399.9U CN201720522399U CN206797622U CN 206797622 U CN206797622 U CN 206797622U CN 201720522399 U CN201720522399 U CN 201720522399U CN 206797622 U CN206797622 U CN 206797622U
- Authority
- CN
- China
- Prior art keywords
- gear
- gearshift
- ratchet
- pallet piece
- speed change
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of portable gear of gearshift three speed change gear of single wheel drive ratchet, including：Central shaft, wheel hub, planetary transmission, gearshift and group retaining device, the planetary transmission include：First planetary transmission and the second planetary transmission, first planetary transmission include：First planet carrier, the first centre wheel, the first planetary gear and the first gear ring, second planetary transmission include：Second planet carrier, the second centre wheel, the second planetary gear and the second gear ring, first gear ring is integrally formed or is fixedly connected with the second centre wheel, one of them in first planet carrier, the second planet carrier and the second centre wheel three is integrally formed or is fixedly connected with central shaft, second gear ring is mutually fixed with vehicle frame, and the gearshift includes：Pallet piece frame, ratchet and the several ratchets being installed on pallet piece frame, the pallet piece frame are sheathed on central shaft and formed between wheel hub and be slidably connected, so as to substantially increase gearshift stability.
Description
【Technical field】
It the utility model is related to technical field of bicycles, and in particular to a kind of portable gear of gearshift three of single wheel drive ratchet becomes
Speed variator.
【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, transform 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 it is easier to get rusty, and is easily disturbed by external force, so through
Often periodic maintenance is needed to maintain, internal speed changer mainly using planetary gears as transmission main body, is sealed in hub interior,
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 advantages of maintenance.
【Utility model content】
To solve the above problems, the purpose of this utility model is to provide a kind of list compact-sized, gearshift stability is good
The portable gear of gearshift three speed change gear of wheel drive ratchet.
To achieve the above object, the technical scheme that the utility model is taken is：A kind of portable gearshift of single wheel drive ratchet
Three gear speed change gears, including：Central shaft, wheel hub and the planetary transmission being arranged between central shaft and wheel hub, gearshift and
Retaining device is dialled, the planetary transmission includes：First planetary transmission and the second planetary transmission, first planetary transmission
Including：First planet carrier, the first centre wheel, the first planetary gear and the first gear ring, second planetary transmission include：Second row
Carrier, the second centre wheel, the second planetary gear and the second gear ring, first centre wheel are sheathed on central shaft and mutually consolidated with vehicle frame
Fixed, first gear ring is integrally formed or is fixedly connected with the second centre wheel and is sheathed on central shaft, first planet carrier,
One of them in second planet carrier and the second centre wheel three is integrally formed or is fixedly connected with central shaft, second gear ring
Mutually fixed with vehicle frame, the gearshift includes：Pallet piece frame, ratchet and at least one ratchet being installed on pallet piece frame,
Elastic component for controlling pallet piece initial position is installed on the pallet piece frame, formed between the pallet piece frame and wheel hub
It is slidably connected, the first ratchet that the ratchet includes being arranged on the first planet carrier outer circumference surface, to be arranged at the first gear ring cylindrical
The second ratchet on side face and the 3rd ratchet being arranged on the second planet carrier outer circumference surface.
Preferably, in a kind of portable gear of gearshift three speed change gear of above-mentioned single wheel drive ratchet, the pallet piece frame
Outer wall and wheel hub both inwalls in, be provided with key on one of part, be provided with another part and be engaged with key
Keyway to realize slip of the pallet piece frame relative to wheel hub.
Preferably, in a kind of portable gear of gearshift three speed change gear of above-mentioned single wheel drive ratchet, described group of retaining device
Including：Pin is dialled, is installed on to dial and dials block piece and back-moving spring on pin.
Preferably, in a kind of portable gear of gearshift three speed change gear of above-mentioned single wheel drive ratchet, on described group of block piece
Provided with boss, the pallet piece frame is provided with the groove being engaged with boss.
Preferably, in a kind of portable gear of gearshift three speed change gear of above-mentioned single wheel drive ratchet, the pallet piece frame
Set in annular shape, several openings are offered on the pallet piece frame, the pallet piece is contained in the opening and pacified by pin
Loaded on pallet piece frame.
Preferably, in a kind of portable gear of gearshift three speed change gear of above-mentioned single wheel drive ratchet, the central shaft
One end is provided with end cap and fastening screw nut, is connected between the end cap and the first centre wheel by tooth, and the end cap is mutually solid with vehicle frame
It is fixed.
Preferably, in a kind of portable gear of gearshift three speed change gear of above-mentioned single wheel drive ratchet, the elastic component is
Spring, torsion spring or shell fragment.
Preferably, in a kind of portable gear of gearshift three speed change gear of above-mentioned single wheel drive ratchet, on the pallet piece
Provided with the ratchet portion being engaged with ratchet, the ratchet portion is provided with engagement spigot surface
Compared with prior art, the utility model has the advantages that：The utility model single wheel drive ratchet moves
Gearshift in the gear speed change gear of formula gearshift three not only acts as the effect of gearshift and also acts as the work of freewheel clutch simultaneously
With therefore, the speed change gear in the utility model need not be separately provided freewheel clutch, and structure is simplified significantly, gearshift
Manipulation is convenient and gearshift stability also greatly promotes.
【Brief description of the drawings】
Fig. 1 is the front view structure of the portable gear of gearshift three speed change gear of single wheel drive ratchet in the utility model embodiment 1
Schematic diagram.
Fig. 2 is the sectional structure of the portable gear of gearshift three speed change gear of single wheel drive ratchet in the utility model embodiment 1
Schematic diagram.
Fig. 3 is the decomposition texture of the portable gear of gearshift three speed change gear of single wheel drive ratchet in the utility model embodiment 1
Schematic diagram.
In figure：1st, central shaft, 2, wheel hub, the 3, first planetary transmission, the 30, first centre wheel, the 31, first planet carrier, 32,
First planetary gear, the 33, first gear ring, the 4, second planetary transmission, the 40, second centre wheel, the 41, second planet carrier, the 42, second row
Star-wheel, the 43, second gear ring, 5, gearshift, 50, pallet piece frame, 500, strip keyway, 501, opening, 502, spring, 503,
Groove, 51, pallet piece, 510, ratchet portion, the 52, first ratchet, the 53, second ratchet, the 54, the 3rd ratchet, 6, dial retaining device, 60,
Dial pin, 61, dial block piece, 610, boss, 7, end cap, 8, fastening screw nut.
【Embodiment】
A kind of portable gear of gearshift three of single wheel drive ratchet described in the utility model is become below by specific embodiment
Speed variator is described in further detail.
Join shown in Fig. 1 to Fig. 3, a kind of portable gear of gearshift three speed change gear of single wheel drive ratchet, including：Central shaft 1, wheel
Hub 2 and planetary transmission (including the first planetary transmission 3 and the second planetary transmission being arranged between central shaft 1 and wheel hub 2
4), gearshift 5 and group retaining device 6.One end of the central shaft 1 is provided with end cap 7 and fastening screw nut 8, the end cap 7 and vehicle frame
It is mutually fixed, connected between the end cap 7 and wheel hub 2 by bearing or roller, pass through axle between the end cap 7 and fastening screw nut 8
Hold or roller connects.
First planetary transmission 3 includes：First centre wheel 30, the first planet carrier 31, the first planetary gear 32 and first
Gear ring 33, second planetary transmission 4 include：Second centre wheel 40, the second planet carrier 41, the second planetary gear 42 and the second tooth
Circle 43, first centre wheel 30 is connected with end cap 7 by tooth, and the end cap 7 is mutually fixed with vehicle frame, first gear ring 33 and
Second centre wheel 40 is integrally formed and is sheathed on central shaft 1, and second gear ring 43 is mutually fixed with vehicle frame, in present embodiment
In, second planet carrier 41 is fixedly connected with central shaft 1.Certainly in other implementations, the central shaft 1 also can be with
First planet carrier 31 or the second centre wheel 40 are fixedly connected.
The gearshift 5 includes：Pallet piece frame 50, three pallet pieces 51 being installed on pallet piece frame 50, it is arranged at
The first ratchet 52 on the outer circumference surface of first planet carrier 31, the second ratchet 53 being arranged on the outer circumference surface of the first gear ring 33 and set
The 3rd ratchet 54 being placed on the outer circumference surface of the second planet carrier 41, the pallet piece frame 50 are sheathed on central shaft 1, the wheel hub
Strip key is provided with 2 inwall, the strip being engaged with strip key is provided with the outer wall of the pallet piece frame 50
Keyway 500, certainly in other implementations, also can be so that pallet piece frame 50 can slidably reciprocate relative to wheel hub 2
Strip key is set at the outer wall of pallet piece frame 50, strip keyway is set at the inwall of wheel hub 2, can also realize pallet piece frame
50 relative to wheel hub 2 relative slip, the pallet piece frame 50 sets in circular, offered on the pallet piece frame 50 several
Opening 501, the pallet piece 51 are contained in the opening 501 and are installed on by pin on pallet piece frame 50.The pallet piece 51
Ratchet portion 510 is provided with, the both ends in the ratchet portion 510 are respectively equipped with engagement spigot surface, and the engagement spigot surface is in ratchet portion 510
Guide effect is played when being meshed with ratchet, so that gearshift is more steady.The pallet piece frame 50, which is provided with, to be used to control
The elastic component of the initial position of pallet piece 51, in the present embodiment, the elastic component are spring 502, are implemented certainly in others
In mode, the elastic component is alternatively other elastic components such as torsion spring or flexure strip.
Described group of retaining device 6 includes dialling pin 60, is installed on group block piece 61 and the back-moving spring dialled on pin 60, described group
Boss 610 is provided with block piece 61, the pallet piece frame 50 is provided with the groove 503 being engaged with boss 610.
The operation principle of the portable gear of gearshift three speed change gear of single wheel drive ratchet is in the utility model：During bottom gear,
Pallet piece 51 is meshed under the control of spring with the 3rd ratchet 54, and power is inputted by central shaft 1, due to central shaft 1 and second
Planet carrier 41 is fixedly connected, therefore the synchronous axial system of the second planet carrier 41, because the 3rd ratchet 54 is arranged on the second planet carrier 41,
3rd ratchet 54 is meshed with pallet piece 51 again, and pallet piece 51 is arranged on pallet piece frame 50 again, therefore pallet piece frame 50 is synchronous
Rotate, because, by key connection, therefore power is ultimately transferred to wheel hub 2 and carried out by wheel hub 2 between pallet piece frame 50 and wheel hub 2
Power output；During middle speed gear, manual mobile pallet piece frame 50 so that the ratchet 54 of pallet piece 51 and the 3rd on pallet piece frame 50 is de-
From engagement, and it is meshed with the first ratchet 52, power is inputted by central shaft 1, is fixed and connected due to the planet carrier 41 of central shaft 1 and second
Connect, therefore the synchronous axial system of the second planet carrier 41, the second planet carrier 41 impart power to by the transmission of the second planetary gear 42
Two centre wheels 40, because the second centre wheel 40 and the first gear ring 33 are integrally formed, therefore the synchronous axial system of the first gear ring 33, the first tooth
Circle 33 imparts power to the first planet carrier 31 by the transmission of the first planetary gear 32, because the first ratchet 52 is arranged at the first row
On the outer circumference surface of carrier 31, the first ratchet 52 is meshed with pallet piece 51 again, and pallet piece 51 is arranged on pallet piece frame 50, because
This synchronous axial system of pallet piece frame 50, because, by key connection, therefore power is ultimately transferred to take turns between pallet piece frame 50 and wheel hub 2
Hub 2 simultaneously carries out power output by wheel hub 2.During top gear, manual mobile pallet piece frame 50 so that the pallet piece on pallet piece frame 50
51 are separated with the first ratchet 52, and are meshed with the second ratchet 53, and power is inputted by central shaft 1, due to central shaft 1 and second
Planet carrier 41 is fixedly connected, therefore the synchronous axial system of the second planet carrier 41, the transmission that the second planet carrier 41 passes through the second planetary gear 42
The second centre wheel 40 is imparted power to, because the second centre wheel 40 and the first gear ring 33 are integrally formed, therefore the first gear ring 33
Synchronous axial system, because the second ratchet 53 is arranged on the first gear ring 33, the second ratchet 53 is meshed with pallet piece 51 again, pallet piece
51 are arranged on pallet piece frame 50 again, therefore the synchronous axial system of pallet piece frame 50, due to passing through key between pallet piece frame 50 and wheel hub 2
Connection, therefore power is ultimately transferred to wheel hub 2 and carries out power output by wheel hub 2.
In summary, the gearshift that the portable gearshift three of the utility model single wheel drive ratchet is kept off in speed change gear is not only
Play a part of gearshift and also act as the effect of freewheel clutch simultaneously, therefore, the speed change gear in the utility model need not
Freewheel clutch is separately provided, structure is simplified significantly, and gearshift manipulation is convenient and gearshift stability also greatly promotes.
The 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, this is not being departed from
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 (8)
- A kind of 1. portable gear of gearshift three speed change gear of single wheel drive ratchet, it is characterised in that including：Central shaft, wheel hub and set Planetary transmission, gearshift and group retaining device, the planetary transmission being placed between central shaft and wheel hub include：The first row Star speed changer and the second planetary transmission, first planetary transmission include：First planet carrier, the first centre wheel, the first row Star-wheel and the first gear ring, second planetary transmission include：Second planet carrier, the second centre wheel, the second planetary gear and second Gear ring, first centre wheel are sheathed on central shaft and mutually fixed with vehicle frame, the first gear ring and the second centre wheel one It is molded or is fixedly connected and be sheathed on central shaft, in first planet carrier, the second planet carrier and the second centre wheel three One of them is integrally formed or is fixedly connected with central shaft, and second gear ring is mutually fixed with vehicle frame, and the gearshift includes： Pallet piece frame, ratchet and at least one pallet piece being installed on pallet piece frame, it is provided with the pallet piece frame for controlling The elastic component of pallet piece initial position, formed and be slidably connected between the pallet piece frame and wheel hub, the ratchet includes being arranged at The first ratchet on first planet carrier outer circumference surface, the second ratchet being arranged on the first gear ring outer circumference surface and it is arranged at second The 3rd ratchet on planet carrier outer circumference surface.
- A kind of 2. portable gear of gearshift three speed change gear of single wheel drive ratchet as claimed in claim 1, it is characterised in that：It is described In both the outer wall of pallet piece frame and the inwall of wheel hub, key is provided with one of part, be provided with another part with The keyway that key is engaged is to realize slip of the pallet piece frame relative to wheel hub.
- A kind of 3. portable gear of gearshift three speed change gear of single wheel drive ratchet as claimed in claim 1, it is characterised in that：It is described Dialling retaining device includes：Pin is dialled, is installed on to dial and dials block piece and back-moving spring on pin.
- A kind of 4. portable gear of gearshift three speed change gear of single wheel drive ratchet as claimed in claim 3, it is characterised in that：It is described Dial block piece and be provided with boss, the pallet piece frame is provided with the groove being engaged with boss.
- A kind of 5. portable gear of gearshift three speed change gear of single wheel drive ratchet as claimed in claim 1, it is characterised in that：It is described Pallet piece frame is set in circular, offers several openings on the pallet piece frame, the pallet piece is contained in the opening simultaneously It is installed on by pin on pallet piece frame.
- A kind of 6. portable gear of gearshift three speed change gear of single wheel drive ratchet as claimed in claim 1, it is characterised in that：It is described One end of central shaft is provided with end cap and fastening screw nut, is connected between the end cap and the first centre wheel by tooth, the end cap with Vehicle frame is mutually fixed.
- A kind of 7. portable gear of gearshift three speed change gear of single wheel drive ratchet as claimed in claim 1, it is characterised in that：It is described Elastic component is spring, torsion spring or shell fragment.
- A kind of 8. portable gear of gearshift three speed change gear of single wheel drive ratchet as claimed in claim 1, it is characterised in that：It is described Pallet piece is provided with the ratchet portion being engaged with ratchet, and the ratchet portion is provided with engagement spigot surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720522399.9U CN206797622U (en) | 2017-05-11 | 2017-05-11 | A kind of portable gear of gearshift three speed change gear of single wheel drive ratchet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720522399.9U CN206797622U (en) | 2017-05-11 | 2017-05-11 | A kind of portable gear of gearshift three speed change gear of single wheel drive ratchet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206797622U true CN206797622U (en) | 2017-12-26 |
Family
ID=60740470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720522399.9U Withdrawn - After Issue CN206797622U (en) | 2017-05-11 | 2017-05-11 | A kind of portable gear of gearshift three speed change gear of single wheel drive ratchet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206797622U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985964A (en) * | 2017-05-11 | 2017-07-28 | 张家港川梭车业有限公司 | Movable gear-shifting three-gear speed change device with single-wheel drive pawl |
-
2017
- 2017-05-11 CN CN201720522399.9U patent/CN206797622U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985964A (en) * | 2017-05-11 | 2017-07-28 | 张家港川梭车业有限公司 | Movable gear-shifting three-gear speed change device with single-wheel drive pawl |
| CN106985964B (en) * | 2017-05-11 | 2022-05-13 | 张家港川梭车业有限公司 | Movable gear-shifting three-gear speed change device with single-wheel drive pawl |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20171226 Effective date of abandoning: 20220513 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20171226 Effective date of abandoning: 20220513 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |