CN107600302A - A kind of transmission shaft output speed variator - Google Patents
A kind of transmission shaft output speed variator Download PDFInfo
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- CN107600302A CN107600302A CN201710995055.4A CN201710995055A CN107600302A CN 107600302 A CN107600302 A CN 107600302A CN 201710995055 A CN201710995055 A CN 201710995055A CN 107600302 A CN107600302 A CN 107600302A
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Abstract
The invention discloses a kind of transmission shaft output speed variator, including：Gear and wheel, the gear include：Transmission output shaft, speed changer framework and transmission input shaft, the both ends of the transmission output shaft are connected with hub for vehicle wheel respectively, the transmission input shaft is provided with the first driving wheel, second driving wheel and wheel for inputting, the transmission output shaft is provided with the first driven pulley and the second driven pulley, between first driving wheel and the first driven pulley, connected respectively by driving medium between second driving wheel and the second driven pulley, the wheel for inputting can move axially relative to input shaft, the wheel for inputting is provided with the first joggle piece, first driving wheel is provided with the second joggle piece being engaged with the first joggle piece, second driving wheel is provided with the 3rd joggle piece being engaged with the first joggle piece, so as to enormously simplify structure, reduce manufacture difficulty.
Description
【Technical field】
The present invention relates to technical field of bicycles, and in particular to a kind of transmission shaft output speed variator.
【Background technology】
Join shown in Fig. 1, Fig. 1 discloses a kind of two gears speed change gear of the prior art, and it includes：Speed changer framework 1`,
The input shaft 2` and output shaft 3` being installed in speed changer framework 1`, the speed changer framework 1` is fixedly connected with vehicle frame or damping
Connect, be provided between two driving wheels 4`, two driving wheel 4` and be provided with the input shaft 2` in the speed changer framework 1`
Two driven pulleys 5`, two driving wheel 4` are installed on the input sprocket 6`, the output shaft 3` being fixedly connected with input shaft 2`
Internal spline is inside respectively equipped with, the input shaft 2` is provided with the external splines being engaged with above-mentioned internal spline, defeated by moving axially
Enter axle 2` to realize gearshift, become between transmission output shaft 3` and axletree by differential mechanism and connection axis connection, this kind of structure
The defects of fast device, is：1st, this kind of speed changer is positioned on the basis of vehicle frame, causes speed changer location and installation more inconvenient, and
And easily occur position deviation in installation process, so as to influence transmission stability, 2, this kind of transmission output shaft and axletree
Between pass through differential mechanism and connection axis connection so that whole speed changer structure becomes complex；3rd, this kind of transmission power needs
To be driven by input shaft to driving wheel, therefore add structural complexity.
Therefore, it is necessary to provide a kind of transmission shaft output speed variator for solving above-mentioned technical problem.
【The content of the invention】
To solve the above problems, it is an object of the invention to provide a kind of transmission shaft simple in construction, easily manufactured is defeated
Go out speed change gear.
A kind of the technical solution adopted in the present invention is：A kind of transmission shaft output speed variator, including：Gear and
Wheel, the gear include：Transmission output shaft, the speed changer framework being installed on transmission output shaft and it is installed on change
Transmission input shaft in fast device framework, connected by bearing between transmission output shaft and the speed changer framework, the change
At least one end of fast device output shaft is connected with hub for vehicle wheel, and the transmission input shaft is provided with the first driving wheel, the second master
Driving wheel and the wheel for inputting being arranged between the first driving wheel and the second driving wheel, first driving wheel, the second driving wheel and defeated
Enter wheel to be sheathed on transmission input shaft and can rotate relative to transmission input shaft, the transmission output shaft is provided with the
One driven pulley and the second driven pulley, first driven pulley, the second driven pulley are fixedly connected with transmission output shaft respectively, described
Connected respectively by driving medium between first driving wheel and the first driven pulley, between second driving wheel and the second driven pulley
Connect, the wheel for inputting can move axially relative to input shaft, and the wheel for inputting is provided with the first joggle piece, and described first actively
Wheel is provided with the second joggle piece for being engaged with the first joggle piece, and second driving wheel is provided with the be engaged with the first joggle piece
Three joggle pieces.
Preferably, a kind of transmission shaft output speed variator in the present invention is further arranged to：Set on the wheel for inputting
There is the 3rd driving wheel, it is driven that the 3rd be installed on transmission output shaft is provided between first driven pulley and the second driven pulley
Wheel, the axially movable connection of radial positioning, the 3rd driving wheel are formed between the 3rd driven pulley and transmission output shaft
It is connected between the 3rd driven pulley by driving medium.
Preferably, a kind of transmission shaft output speed variator in the present invention is further arranged to：The speed changer output
Axle is provided with external splines, and the internal spline being engaged with above-mentioned external splines is provided with the 3rd driven pulley.
Preferably, a kind of transmission shaft output speed variator in the present invention is further arranged to：First driving wheel,
Second driving wheel, the 3rd driving wheel, the first driven pulley, the second driven pulley and the 3rd driven pulley are sprocket wheel or belt wheel, the transmission
Medium is chain or transmission belt.
Preferably, a kind of transmission shaft output speed variator in the present invention is further arranged to：On the wheel for inputting
First joggle piece is internal spline part, the 3rd joggle piece on the second joggle piece and the second driving wheel on first driving wheel
It is external splines part.
Preferably, a kind of transmission shaft output speed variator in the present invention is further arranged to：First driving wheel
On external splines part be fixedly connected or be integrally formed with the first driving wheel, external splines part on second driving wheel and the second master
Driving wheel is fixedly connected or is integrally formed.
Preferably, a kind of transmission shaft output speed variator in the present invention is further arranged to：Set in the wheel for inputting
There is freewheel clutch.
Preferably, a kind of transmission shaft output speed variator in the present invention is further arranged to：The hub for vehicle wheel with
Freewheel clutch is provided between transmission output shaft.
Compared with prior art, the present invention has the advantages that：Transmission output shaft in the present invention is directly and car
Wheel is connected, and middle without being attached again by differential mechanism, so as to simplify structure, whole speed change gear is with axletree in addition
On the basis of positioned so that installation positioning is more convenient, ensure that good transmission stability, and the present invention is straight by wheel for inputting
Driving driving wheel is connect so that input power needs not move through input shaft, so as to enormously simplify structure.
【Brief description of the drawings】
Fig. 1 is the structural representation of speed change gear in the prior art.
Fig. 2 is the dimensional structure diagram of transmission shaft output speed variator in the embodiment of the present invention 1.
Fig. 3 is the partial enlarged drawing at A in Fig. 2.
Fig. 4 is the decomposition texture schematic diagram of transmission shaft output speed variator in the embodiment of the present invention 1.
Fig. 5 is the cross section structure diagram of transmission shaft output speed variator in the embodiment of the present invention 1.
Fig. 6 is the partial enlarged drawing at B in Fig. 5.
Fig. 7 is the structural representation of transmission shaft output speed variator in the embodiment of the present invention 2.
In Fig. 1：1`, speed changer framework, 2`, input shaft, 3`, output shaft, 4`, driving wheel, 5`, driven pulley, 6`, input chain
Wheel.
Fig. 2 is into Fig. 7：1st, left wheel, the 10, first freewheel clutch, 2, right wheel, the 20, second freewheel clutch, 3, become
Fast device output shaft, the 30, first driven sprocket, the 31, second driven sprocket, the 32, the 3rd driven sprocket, 33, external splines, 4, speed changer
Framework, 5, transmission input shaft, the 50, first spline housing, the 500, first drive sprocket, the 501, first external splines, the 51, second spline
Set, the 510, second drive sprocket, the 511, second external splines, 52, input sprocket, the 520, the 3rd drive sprocket.
【Embodiment】
A kind of transmission shaft output speed variator of the present invention is made below by specific embodiment further detailed
Thin description.
Embodiment 1
Join shown in Fig. 2 to Fig. 6, the invention discloses a kind of transmission shaft output speed variator, including：Left wheel 1, right car
Wheel 2, transmission output shaft 3, the speed changer framework 4 being installed on transmission output shaft 3, the change being installed in speed changer framework 4
Fast device input shaft 5, connected between one end of the transmission output shaft 3 and the wheel hub of left wheel 1 by the first freewheel clutch 10,
Connected between the other end and the wheel hub of right wheel 2 of the transmission output shaft 3 by the second freewheel clutch 20.
First spline housing 50, the second spline housing 51 are installed on the transmission input shaft 5 and are arranged at the first spline housing
50 and the second input sprocket 52 between spline housing 51, the input sprocket 52 be provided with the 3rd drive sprocket 520, the input
Freewheel clutch is provided with sprocket wheel 52, so as to when input sprocket 52 is without power input, wheel remain able to inertia after
Continuous to rotate, first spline 50, the second spline housing 51 and input sprocket 52 are sheathed on transmission input shaft 5 and can be relative
Rotated in transmission input shaft 5, the mid diameter of transmission input shaft 5 is big, both ends diameter is small, so as to be formed and the first spline
Cover the 50 first step portions being engaged and the second step portion being engaged with the second spline housing 51 so that the first spline housing 50 and
The axially position of second spline housing 51, first spline housing 50 are provided with the first drive sprocket 500, on second spline housing 51
Provided with the second drive sprocket 510, in the present embodiment, used between the spline housing 50 of the first drive sprocket 500 and first
Spline connection, which is realized, to be fixed, and second drive sprocket 510 is integrally formed with the second spline housing 51, certainly in other embodiment party
In formula, it can be also integrally formed between the spline housing 50 of the first drive sprocket 500 and first or using other fixed forms,
Second drive sprocket 510 and the second spline housing 51 can also use other fixed forms that such as spline be connected etc.At this
In embodiment, bearing is not provided between the transmission input shaft 5 and speed changer framework 4, certainly in other embodiments
In bearing can be also set between transmission input shaft 5 and speed changer framework 4, the input sprocket 52 can be made relative to input shaft
Axial movement, first spline housing 50 are provided with the first external splines 501, and second spline housing 51 is provided with the second external splines 511,
The inner side of the input sprocket 52 is provided with the internal spline being engaged respectively with the first external splines 501 and the second external splines 511.At this
In embodiment, the axial movement gearshift engaging structure of input sprocket 52 is using spline fitted, certainly in other embodiment party
In formula, also gearshift engagement can be realized using the other structures of such as elastic steel ball, steel bead groove fit structure etc.
Bearing is provided between the transmission output shaft 3 and speed changer framework 4, is provided with the transmission output shaft 3
First driven sprocket 30, the second driven sprocket 31 and be arranged between the first driven sprocket 30 and the second driven sprocket 31 the 3rd
Driven sprocket 32, achieved a fixed connection between first driven sprocket 30 and transmission output shaft 3 by spline, described second
Achieved a fixed connection between driven sprocket 31 and transmission output shaft 3 by spline, the center of the transmission output shaft 3 is provided with
External splines 33, is provided with the internal spline (not shown) being engaged with the external splines 33 in the 3rd driven sprocket 32, and the described 3rd
Driven sprocket 32 can move axially relative to transmission output shaft 3, and certainly in other implementations, described first is driven
Sprocket wheel 30, the second driven sprocket 31 can also be integrally formed with transmission output shaft 3 or using other fixed forms, and described first
Between the driven sprocket 30 of drive sprocket 500 and first by the first chain it is (not shown) connection, second drive sprocket 510 with
Pass through the connection (not shown) of the second chain, the 3rd drive sprocket 520 and the 3rd driven sprocket between second driven sprocket 31
Pass through the connection (not shown) of the 3rd chain between 32.In the present embodiment, chain is respectively adopted in the drive and driving medium
Wheel and chain, the drive and driving medium can also use belt wheel and transmission belt in other implementations certainly, equally
The present invention can be realized.
The operation principle of speed change gear is in the present embodiment：During one gear, input sprocket 52 is moved axially, makes input sprocket 52
Interior internal spline is meshed with the second external splines 511 on the second spline housing 51, now, moves axially the 3rd driven sprocket 32,
So that the internal spline in the 3rd driven sprocket 32 is disengaged from the external splines 33 on transmission output shaft 3, power is by input chain
The input of wheel 52, because input sprocket 52 is meshed with the second spline housing 51, therefore the second spline housing 51 rotates, due to the second spline
Set 51 is integrally formed with the second drive sprocket 510, and the second drive sprocket 510 is realized further through chain and the second driven sprocket 31 and passed
Dynamic, therefore, the second driven sprocket 31 rotates, and because the second driven sprocket 31 is fixedly connected with transmission output shaft 3, speed changer is defeated
The both ends of shaft 3 are connected with hub for vehicle wheel again, therefore power is directly passed to wheel, and driving moment rotates.During two gears, axially
Mobile input sprocket 52 so that the internal spline in input sprocket 52 is in de- with the first spline housing 50 and the second spline housing 51 respectively
Open state, now move axially on internal spline and transmission output shaft 3 that the 3rd driven sprocket 32 causes in the third line movable sprocket
External splines be meshed, power is inputted by input sprocket 52, due to being fixed with the 3rd drive sprocket 520 on input sprocket 52,
Connected between three drive sprockets 520 and the 3rd driven sprocket 32 by the 3rd chain, therefore the 3rd driven sprocket 32 rotates, due to
By spline engagement between 3rd driven sprocket 32 and transmission output shaft 3, therefore transmission output shaft 3 rotates, so as to move
Power passes to the wheel at both ends, and driving moment rotates, and during three gears, moves axially input sprocket 52 so that in input sprocket 52
Internal spline is meshed with the first external splines 501 on the first spline housing 50, now, moves axially the 3rd driven pulley so that the 3rd
Internal spline in driven pulley is disengaged from the external splines 33 on transmission output shaft 3, and power is inputted by input sprocket 52, due to
Input sprocket 52 is meshed with the first spline housing 50, therefore the first spline housing 50 rotates, due to the first spline housing 50 and the first master
Movable sprocket 500 is fixedly connected, and the first drive sprocket 500 is realized further through chain and the first driven sprocket 30 and is driven, therefore, first
Driven sprocket 30 rotates, because the first driven sprocket 30 is fixedly connected with transmission output shaft 3, the both ends of transmission output shaft 3
It is connected again with hub for vehicle wheel, therefore power is directly passed to wheel, driving moment rotates.
In summary, the transmission output shaft in the present invention is directly connected with wheel, middle without being entered again by differential mechanism
Row connection, so as to simplify structure, whole speed change gear is positioned on the basis of axletree in addition so that installation positioning compared with
For convenience, good transmission stability is ensure that, the present invention directly drives driving wheel input power by wheel for inputting need not
By input shaft, so as to enormously simplify structure.
Embodiment 2
Join shown in Fig. 7, remaining structure is same as Example 1 in present embodiment, and difference is：In embodiment 1
3 sets of driving-chain wheel sets are provided with altogether, realize three gear speed changes altogether, and in the present embodiment, by what is installed on input sprocket
3rd drive sprocket and the 3rd driven sprocket being installed on transmission output shaft remove, and only retain two sets of driving-chain wheel sets, real
Existing two gear speed changes.
The operation principle of speed change gear is in present embodiment：During one gear, input sprocket 52 is moved axially, makes input sprocket
Internal spline in 52 is meshed with the second external splines 511 on the second spline housing 51, and power is inputted by input sprocket 52, due to defeated
Enter sprocket wheel 52 to be meshed with the second spline housing 51, therefore the second spline housing 51 rotates, due to the second spline housing 51 and the second active
Sprocket wheel 510 is integrally formed, and the second drive sprocket 510 is realized further through chain and the second driven sprocket 31 and is driven, therefore, second from
Movable sprocket 31 rotates, and because the second driven sprocket 31 is fixedly connected with transmission output shaft 3, the both ends of transmission output shaft 3 are again
It is connected with hub for vehicle wheel, therefore power is directly passed to wheel, driving moment rotates.During two gears, input sprocket is moved axially
52 so that the internal spline in input sprocket 52 is disengaged from the second external splines 511 on the second spline housing 51, and is spent with first
The first external splines 501 on key set 50 is meshed, and power is inputted by input sprocket 52, due to the spline housing of input sprocket 52 and first
50 are meshed, therefore the first spline housing 50 rotates, because the first spline housing 50 is fixedly connected with the first drive sprocket 500, first
Drive sprocket 500 realizes and is driven that therefore, the first driven sprocket 30 rotates further through chain and the first driven sprocket 30, due to the
One driven sprocket 30 is fixedly connected with transmission output shaft 3, and the both ends of transmission output shaft 3 are connected with hub for vehicle wheel again, because
This power is directly passed to wheel, and driving moment rotates.
The principle and its effect of the above embodiments only illustrative the invention, and the implementation that part uses
Example, not for the limitation present invention；It should be pointed out that for the person of ordinary skill of the art, wound of the present invention is not being departed from
On the premise of making design, various modifications and improvements can be made, these belong to protection scope of the present invention.
Claims (8)
- A kind of 1. transmission shaft output speed variator, it is characterised in that including：Gear and wheel, the gear bag Include：Transmission output shaft, the speed changer framework being installed on transmission output shaft and the speed changer being installed in speed changer framework Input shaft, connected by bearing between transmission output shaft and the speed changer framework, at least the one of the transmission output shaft End is connected with hub for vehicle wheel, and the transmission input shaft is provided with the first driving wheel, the second driving wheel and is arranged at the first master Wheel for inputting between driving wheel and the second driving wheel, first driving wheel, the second driving wheel and wheel for inputting are sheathed on speed changer It can rotate on input shaft and relative to transmission input shaft, the transmission output shaft is driven provided with the first driven pulley and second Wheel, first driven pulley, the second driven pulley be fixedly connected with transmission output shaft respectively, first driving wheel and first from Connected respectively by driving medium between driving wheel, between second driving wheel and the second driven pulley, the wheel for inputting can be relative Moved axially in input shaft, the wheel for inputting is provided with the first joggle piece, and first driving wheel is provided with and the first joggle piece The second joggle piece being engaged, second driving wheel are provided with the 3rd joggle piece being engaged with the first joggle piece.
- A kind of 2. transmission shaft output speed variator as claimed in claim 1, it is characterised in that：The wheel for inputting is provided with the Three driving wheels, the 3rd driven pulley being installed on transmission output shaft is provided between first driven pulley and the second driven pulley, The axially movable connection of radial positioning, the 3rd driving wheel and the are formed between 3rd driven pulley and transmission output shaft Connected between three driven pulleys by driving medium.
- A kind of 3. transmission shaft output speed variator as claimed in claim 2, it is characterised in that：The transmission output shaft is set There is external splines, the internal spline being engaged with above-mentioned external splines is provided with the 3rd driven pulley.
- A kind of 4. transmission shaft output speed variator as claimed in claim 2, it is characterised in that：First driving wheel, Two driving wheels, the 3rd driving wheel, the first driven pulley, the second driven pulley and the 3rd driven pulley are sprocket wheel or belt wheel, and the transmission is situated between Matter is chain or transmission belt.
- A kind of 5. transmission shaft output speed variator as claimed in claim 1, it is characterised in that：First on the wheel for inputting Joggle piece is internal spline part, and the 3rd joggle piece on the second joggle piece and the second driving wheel on first driving wheel is External splines part.
- A kind of 6. transmission shaft output speed variator as claimed in claim 5, it is characterised in that：On first driving wheel External splines part is fixedly connected or is integrally formed with the first driving wheel, external splines part and the second driving wheel on second driving wheel It is fixedly connected or is integrally formed.
- A kind of 7. transmission shaft output speed variator as claimed in claim 1, it is characterised in that：It is provided with the wheel for inputting super More clutch.
- A kind of 8. transmission shaft output speed variator as claimed in claim 1, it is characterised in that：The hub for vehicle wheel and speed change Freewheel clutch is provided between device output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710995055.4A CN107600302B (en) | 2017-10-23 | 2017-10-23 | Transmission shaft output speed change device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710995055.4A CN107600302B (en) | 2017-10-23 | 2017-10-23 | Transmission shaft output speed change device |
Publications (2)
| Publication Number | Publication Date |
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| CN107600302A true CN107600302A (en) | 2018-01-19 |
| CN107600302B CN107600302B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710995055.4A Active CN107600302B (en) | 2017-10-23 | 2017-10-23 | Transmission shaft output speed change device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757862A (en) * | 2018-07-26 | 2018-11-06 | 张家港川梭车业有限公司 | One kind two keeps off full-automatic speed-changing device |
| CN109398590A (en) * | 2018-11-30 | 2019-03-01 | 宁波工程学院 | Speed-changing chain component |
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| Publication number | Publication date |
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| CN107600302B (en) | 2023-02-28 |
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