CN205872357U - Gear shift device - Google Patents
Gear shift device Download PDFInfo
- Publication number
- CN205872357U CN205872357U CN201620712746.XU CN201620712746U CN205872357U CN 205872357 U CN205872357 U CN 205872357U CN 201620712746 U CN201620712746 U CN 201620712746U CN 205872357 U CN205872357 U CN 205872357U
- Authority
- CN
- China
- Prior art keywords
- ratchet
- gearshift
- driving member
- main part
- sided
- 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- Withdrawn - After Issue
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- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
Abstract
The utility model relates to a gear shift device, include: first driving medium, secondary drive spare and gearshift, it accepts the chamber to form between secondary drive spare and the first driving medium, secondary drive spare is equipped with and is located the inner wall of acceping the intracavity, first driving medium is equipped with and is located the outer wall of acceping the intracavity, the outer wall department of first driving medium is equipped with first ratchet, the inner wall department of secondary drive spare is equipped with the second ratchet, the gearshift includes: the piece of shifting puts up and installs at least one the gear shift piece on a frame of shifting, shift the piece including main part and extension, be provided with resilient means in the extension or in the gear shift piece frame, the one end of main part is equipped with two -sided pawl, the other end or the middle section of main part are provided with the locating hole, the portion with resilient means matched with manual gear shifting that is equipped with on the axial lead of gear shift piece frame can realize shifting through axial displacement manual gear shifting portion, and the transmission of ratchet and pawl simultaneously still has freewheel clutch's function.
Description
[technical field]
This utility model relates to a kind of gearshift.
[background technology]
Bicycle speed-varying unit is divided into internal speed changer and outer variator two kinds, and outer variator is that the open link chain mechanism of employing is
Drive system, makes chain transform on different flywheels to realize different chains by stirring the selector being installed on bicycle front
Bar gear ratio, owing to outer variator is exposed outside, is therefore easier to get rusty, and is easily subject to the interference of external force, so warp
Often needing periodic maintenance to maintain, internal speed changer is mainly using planetary gears as transmission main body, is sealed in inside flower-drum,
Through multilamellar special seal material protection, so rainwater, dust, grease etc. cannot be introduced into, therefore without time-based maintenance, it is achieved that exempt from
The advantage of maintenance.Internal speed changer is mainly made up of planetary gear mechanism and gearshift, gearshift of the prior art
Generally there is following technological deficiency: 1, structure is the most complicated, it is relatively big that workman repairs difficulty, 2, cannot realize surmounting simultaneously from
Clutch and two functions of gearshift.
[utility model content]
For solving the problems referred to above, the gearshift dress that the purpose of this utility model is to provide a kind of compact conformation, shifts gears firm
Put.
For achieving the above object, the technical scheme that this utility model is taked is: a kind of gearshift, including: the first transmission
Part, the second driving member and gearshift, described second driving member is sheathed on the first driving member, described second driving member and first
Forming host cavity between driving member, described second driving member is provided with the inwall being positioned at host cavity, and described first driving member is provided with
It is positioned at the outer wall of host cavity, is provided with the first ratchet at the outer wall of described first driving member, at the inwall of described second driving member
Being provided with the second ratchet, described gearshift includes: gearshift part frame and be installed on gearshift part frame at least one shift member, described
Gearshift part includes the extension that the sidewall of main part and main body extends, and described gearshift part main part is contained in host cavity,
Being provided with elastic device in described extension or in shift member frame, one end of described main part is provided with two-sided ratchet, two-sided ratchet
In inner face ratchet and the first ratchet match, outside ratchet and the second ratchet in two-sided ratchet match, described main part
The other end or stage casing be provided with location hole, described gearshift part by be installed on location hole in connector be connected with shift member frame
Connecing, the axial line of described shift member frame is provided with the manual shift portion that can move axially along axial line, and described shift member frame is pacified
Equipped with the elastic for controlling two-sided ratchet initial position.
A kind of gearshift in this utility model is further arranged to: described two-sided ratchet is arranged at the one of main part
End, hole, described location is arranged at the other end of main part, and described extension is arranged between two-sided ratchet and hole, location.
A kind of gearshift in this utility model is further arranged to: described two-sided ratchet is arranged at the one of main part
End, described extension is arranged at the other end of main part, and hole, described location is arranged between two-sided ratchet and extension.
A kind of gearshift in this utility model is further arranged to: described elastic device includes elastic component and ball
Body.
A kind of gearshift in this utility model is further arranged to: described ball body is ball, ball roller or cone
Head cylinder.
A kind of gearshift in this utility model is further arranged to: the side in described manual shift portion is provided with the conical surface.
A kind of gearshift in this utility model is further arranged to: described elastic is torsion spring, spring wire or spring
Sheet.
A kind of gearshift in this utility model is further arranged to: described first ratchet and the first driving member one become
Type or fixing connection, described second ratchet and the one-body molded or fixing connection of the second driving member.
Compared with prior art, the gearshift structure during this utility model has the advantages that this utility model
Compact, easy to operate, shift gears firm, by move axially manual shift portion can realize gearshift, the transmission of ratchet and pawl simultaneously
Also there is the function of freewheel clutch.
[accompanying drawing explanation]
Fig. 1 is the structural representation of gearshift in this utility model embodiment 1.
Fig. 2 is the structural representation of the first driving member in this utility model embodiment 1.
Fig. 3 is the structural representation of the second driving member in this utility model embodiment 1.
Fig. 4 is the structural representation of shift member in this utility model embodiment 1.
Fig. 5 is the sectional structure schematic diagram of shift member in this utility model embodiment 1.
In Fig. 1 to Fig. 5: 1, the first driving member, 10, outer wall, the 11, first ratchet, the 2, second driving member, 20, inwall, 21,
Second ratchet, 3, gearshift, 30, gearshift part frame, 31, gearshift part, 310, main part, 311, inner face ratchet, 312, outside spine
Pawl, 313, hole, location, 314, sidewall, 315, extension, 316, elastic device, 3160, elastic component, 3161, ball body, 4, house
Chamber, 5, manual shift portion, 50, the conical surface.
[detailed description of the invention]
Referring to shown in Figure of description 1, this utility model is a kind of centrifugal gearshift, mainly by the first driving member 1,
Second driving member 2 and gearshift more than 3 part composition.
Please continue to refer to Fig. 2 to Fig. 5, described second driving member 2 is sheathed on the first driving member 1, described second driving member 2
And forming host cavity 4 between the first driving member 1, described second driving member 2 is provided with the inwall 20 being positioned at host cavity 4, described the
One driving member 1 is provided with the outer wall 10 being positioned at host cavity 4, is provided with the first ratchet 11, institute at the outer wall 10 of described first driving member 1
State and at the inwall 20 of the second driving member 2, be provided with the second ratchet 21, in the present embodiment, described first ratchet 11 and the first transmission
Part 1 is one-body molded, and described second ratchet 21 is one-body molded with the second driving member 2.Described gearshift 3 includes: gearshift part frame 30
And it is installed on the gearshift part 31 on gearshift part frame 30, in the present embodiment, the quantity of described shift member 31 is one, certainly exists
In other embodiments, the quantity of described shift member can also be two, three the most.Described gearshift part 31 includes main body
Portion 310, described main part 310 is contained in host cavity 4, and one end of described main part 310 is provided with two-sided ratchet, in two-sided ratchet
Inner face ratchet 311 match with the first ratchet 11, the outside ratchet 312 in two-sided ratchet matches with the second ratchet 21, institute
State the other end of main part 310 and be provided with hole 313, location, described gearshift part 31 by the pin that is installed in hole 313, location with change
Shelves part frame 30 is connected, and the sidewall 314 of described main part 310 is extended with extension 315, and described extension 315 is positioned at hole, location
Between 313 and two-sided ratchet, being provided with elastic device 316 in described extension 315, described elastic device 316 includes elastic component
3160 and ball body 3161, described ball body 3161 can be ball, ball roller or conehead cylinder, described elastic device 316
Effect be when ratchet do not transmit power servo-actuated time, ratchet can springing on ratchet.Certainly, in other implementations, described
Elastic device 316 also can be not arranged in extension 315, and is arranged in gearshift part frame 30, also can realize this utility model, institute
The axial line stating shift member frame 30 is provided with the manual shift portion 5 matched with elastic device 316, and described manual shift portion 5 can
Moving axially along axial line, the one end in described manual shift portion 5 is provided with the conical surface 50, in order to engage smoothly.Described shift member frame 30
On the elastic (not shown) for controlling ratchet initial position is installed, described elastic can be torsion spring or spring leaf.
In the present embodiment, the operation principle of gearshift is: during initial position, relies on the elastic force of elastic, described shift member
Inner face ratchet 311 be meshed with the first ratchet 11 of the first driving member 1, during gearshift, move axially manual shift portion 5, make to change
Stopper 5 engages with the ball body 3161 of shift member elastic device, and gearshift portion 5 jack-up gearshift part 31 circular direction outward launches, inner face
Ratchet 311 disengages with the first ratchet 11 of the first driving member 1, and the second ratchet 21 phase of outside ratchet 312 and the second driving member 2 is nibbled
Close, it is achieved gearshift, the transmission of ratchet and pawl simultaneously also has the function of freewheel clutch.
Embodiment 2
Remaining structure of gearshift in the present embodiment is the most same as in Example 1, and its difference is the structure of shift member 31,
In the present embodiment, described two-sided ratchet is arranged at one end of main part 310, and described extension 315 is arranged at main part 310
The other end, hole, described location 313 is arranged between two-sided ratchet and extension 315, and in the present embodiment, the work of gearshift is former
Reason is: during initial position, relies on the elastic force of elastic, second in the outside ratchet 312 of described gearshift part and the second driving member 2
Ratchet 21 is meshed, and time to be shifted gears, moves axially manual shift portion 5, makes the ball in manual shift portion 5 and gearshift part elastic device
Body 3161 engages, and shifting sleeve 5 jack-up gearshift part 31 circular direction inside is packed up, so that outside ratchet 312 and the second driving member 2
Second ratchet 21 disengages, and makes inner face ratchet 311 engage with the first ratchet 11 of the first driving member 1, it is achieved gearshift, simultaneously ratchet and
The transmission of ratchet also has the function of freewheel clutch.
The principle of the above embodiments only illustrative this utility model creation and effect thereof, and the reality that part is used
Execute example, not for limiting this utility model；It should be pointed out that, for the person of ordinary skill of the art, without departing from this
On the premise of utility model creates design, it is also possible to making some deformation and improvement, these broadly fall into protection of the present utility model
Scope.
Claims (8)
1. a gearshift, it is characterised in that including: the first driving member, the second driving member and gearshift, described second passes
Moving part is sheathed on the first driving member, forms host cavity, described second transmission between described second driving member and the first driving member
Part is provided with the inwall being positioned at host cavity, and described first driving member is provided with the outer wall being positioned at host cavity, described first driving member
Outer wall at be provided with the first ratchet, be provided with the second ratchet at the inwall of described second driving member, described gearshift includes: gearshift
Part frame and be installed on gearshift part frame at least one shift member, described gearshift part includes that the sidewall of main part and main body prolongs
The extension stretched, described gearshift part main part is contained in host cavity, is provided with elasticity in described extension or in shift member frame
Device, one end of described main part is provided with two-sided ratchet, and inner face ratchet and the first ratchet in two-sided ratchet match, two-sided spine
Outside ratchet and the second ratchet in pawl match, and the other end of described main part or stage casing are provided with hole, location, described gearshift
Part is connected with shift member frame by the connector being installed in hole, location, and the axial line of described shift member frame is provided with can be along axle
The manual shift portion that heart line moves axially, described shift member frame is provided with the elasticity for controlling two-sided ratchet initial position
Portion.
2. a kind of gearshift as claimed in claim 1, it is characterised in that: described two-sided ratchet is arranged at the one of main part
End, hole, described location is arranged at the other end of main part, and described extension is arranged between two-sided ratchet and hole, location.
3. a kind of gearshift as claimed in claim 1, it is characterised in that: described two-sided ratchet is arranged at the one of main part
End, described extension is arranged at the other end of main part, and hole, described location is arranged between two-sided ratchet and extension.
4. a kind of gearshift as claimed in claim 1, it is characterised in that: described elastic device includes elastic component and ball
Body.
5. a kind of gearshift as claimed in claim 4, it is characterised in that: described ball body is ball, ball roller or cone
Head cylinder.
6. a kind of gearshift as claimed in claim 1, it is characterised in that: the side in described manual shift portion is provided with the conical surface.
7. a kind of gearshift as claimed in claim 1, it is characterised in that: described elastic is torsion spring, spring wire or spring
Sheet.
8. a kind of gearshift as claimed in claim 1, it is characterised in that: described first ratchet and the first driving member one become
Type or fixing connection, described second ratchet and the one-body molded or fixing connection of the second driving member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620712746.XU CN205872357U (en) | 2016-07-07 | 2016-07-07 | Gear shift device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620712746.XU CN205872357U (en) | 2016-07-07 | 2016-07-07 | Gear shift device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205872357U true CN205872357U (en) | 2017-01-11 |
Family
ID=57695306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620712746.XU Withdrawn - After Issue CN205872357U (en) | 2016-07-07 | 2016-07-07 | Gear shift device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205872357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106005234A (en) * | 2016-07-07 | 2016-10-12 | 张家港川梭车业有限公司 | Gear shifting device |
-
2016
- 2016-07-07 CN CN201620712746.XU patent/CN205872357U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106005234A (en) * | 2016-07-07 | 2016-10-12 | 张家港川梭车业有限公司 | Gear shifting device |
| CN106005234B (en) * | 2016-07-07 | 2018-06-01 | 张家港川梭车业有限公司 | A kind of gearshift |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170111 Effective date of abandoning: 20180601 |
|
| AV01 | Patent right actively abandoned |