CN209179835U - A kind of distribution timing mechanism, engine and vehicle - Google Patents
A kind of distribution timing mechanism, engine and vehicle Download PDFInfo
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- CN209179835U CN209179835U CN201821923309.8U CN201821923309U CN209179835U CN 209179835 U CN209179835 U CN 209179835U CN 201821923309 U CN201821923309 U CN 201821923309U CN 209179835 U CN209179835 U CN 209179835U
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- camshaft
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- timing gear
- timing
- nut
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Abstract
The utility model relates to technical field of engines more particularly to a kind of distribution timing mechanisms, engine and vehicle.Including camshaft and the camshaft timing gear being arranged on camshaft, one end that camshaft passes through camshaft timing gear is provided with the breakaway nut abutted with camshaft timing gear, and breakaway nut and camshaft, which cooperate to lock camshaft timing gear, to be limited.Camshaft timing gear by breakaway nut and camshaft cooperation by camshaft timing gear lock limit, without on camshaft processing bolt hole and dowel hole the installation to camshaft and camshaft timing gear can be realized.And do not need camshaft and have enough journal diameter processing bolts hole, the requirement to camshaft journal diameter is reduced, then makes distribution timing mechanism overall processing requirement reduction, reduces production cost.It for large bore engine sectional camshaft and camshaft timing gear, is not required to positioning pin and positions gear, installation can be realized without camshaft timing gear is marked.
Description
Technical field
The utility model relates to technical field of engines more particularly to a kind of distribution timing mechanisms, engine and vehicle.
Background technique
As shown in Figure 1, current camshaft timing gear 2 is most of to be assemblied on camshaft 1 by bolt 5, and it is convex
Camshaft thrust piece 6, camshaft 1 and camshaft timing gear 2 are provided between wheel shaft 1 and camshaft timing gear 2 by determining
Position pin 7 positions, and realizes the uniqueness of the two position, while needing to be equipped with positive markers on a certain tooth of camshaft timing gear 2
Note, the intermediate gear 4 engaged with the camshaft timing gear 2 realize unique positions cooperation.
But above-mentioned assembly relation has following defects that
1. needing processing bolt hole and dowel hole on existing camshaft 1, requirement on machining accuracy is high；
2. camshaft 1 needs enough journal diameters, convenient for there is enough space layout bolts hole；
3. for large bore engine, camshaft 1 and 2 volume of camshaft timing gear is big, weight is big is filled using positioning pin
Match and timing marks alignment will cause assembly difficulty.
It is, therefore, desirable to provide a kind of distribution timing mechanism, being able to solve camshaft in the prior art, there are machining accuracies to want
Seek problem high, that assembly is inconvenient.
Utility model content
The purpose of this utility model is that proposing a kind of distribution timing mechanism, the processing request to camshaft can reduce,
And it is more convenient for the assembly of large bore engine sectional camshaft and camshaft timing gear.
For this purpose, the utility model uses following technical scheme:
A kind of distribution timing mechanism is provided, including camshaft and the camshaft timing gear being arranged on the camshaft,
One end that the camshaft passes through the camshaft timing gear is provided with the super spiral shell abutted with the camshaft timing gear
Mother, the breakaway nut and the camshaft, which cooperate to lock the camshaft timing gear, to be limited.
As a kind of preferred embodiment of the utility model, the camshaft includes that abutting part, gear connection are connected with nut
Portion, the abutting part are abutted with the camshaft timing gear side, and the nut interconnecting piece passes through the camshaft timing tooth
Wheel is connected with the breakaway nut.
As a kind of preferred embodiment of the utility model, the gear connection axial length is less than the nut interconnecting piece
Axial length.
As a kind of preferred embodiment of the utility model, the camshaft timing gear is provided with pilot hole along its axial direction, institute
Stating pilot hole includes work department and through-Penetration portion, and the work department and the gear connection cooperate.
As a kind of preferred embodiment of the utility model, the axial direction that the axial length of the work department is less than the through-Penetration portion is long
Degree.
As a kind of preferred embodiment of the utility model, one end that the camshaft timing gear is abutted with the breakaway nut
It is provided with mounting groove.
As a kind of preferred embodiment of the utility model, one end that the camshaft timing gear is abutted with the breakaway nut
It is provided with weight loss groove, the weight loss groove slot bottom is provided with the mounting groove.
As a kind of preferred embodiment of the utility model, the camshaft is an integral structure.
The utility model additionally provides a kind of engine, including distribution timing mechanism described above.
The utility model provides a kind of vehicle, including engine described above.
The utility model the utility model has the advantages that
The distribution timing mechanism provided in the utility model, camshaft timing gear are cooperated by breakaway nut and camshaft
Camshaft timing gear is locked and is limited, without on camshaft processing bolt hole and dowel hole can be realized to camshaft and
The installation of camshaft timing gear.And do not need camshaft and have enough journal diameter processing bolts hole, it reduces to camshaft
The requirement of journal diameter then makes distribution timing mechanism overall processing requirement reduction, reduces production cost.Large-diameter is sent out
For motivation sectional camshaft and camshaft timing gear, be not required to positioning pin and position gear, and without to camshaft just
When gear be marked installation can be realized.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the distribution timing mechanism provided in background technique；
Fig. 2 is the structural schematic diagram of distribution timing mechanism provided by the embodiment of the utility model；
Fig. 3 is the cross-sectional view of distribution timing mechanism in Fig. 2.
In figure:
1, camshaft；11, abutting part；12, gear connection；13, nut interconnecting piece；2, camshaft timing gear；21, work
Make portion；22, through-Penetration portion；23, mounting groove；24, weight loss groove；3, breakaway nut；4, intermediate gear；5, bolt；6, camshaft thrust
Piece；7, positioning pin.
Specific embodiment
The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer,
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.It is understood that
Specific embodiment described herein is used only for explaining the utility model, rather than the restriction to the utility model.In addition it also needs
It is noted that illustrating only part relevant to the utility model for ease of description, in attached drawing and not all.
A kind of distribution timing mechanism is provided in the present embodiment, which in a pre-installation, does not need in cam
1 processing bolt hole of axis and location hole can be realized as camshaft 1 and the installation of camshaft timing gear 2 positions.Meanwhile for big
The assembly of bore engine sectional camshaft 1 and camshaft timing gear 2 is easier.
As shown in Figures 2 and 3, the distribution timing mechanism include camshaft 1, the camshaft timing that is arranged on camshaft 1
Gear 2 and breakaway nut 3, breakaway nut 3 be arranged in camshaft 1 across camshaft timing gear 2 one end and with camshaft just
When gear 2 abut, breakaway nut 3 can with camshaft 1 cooperate by camshaft timing gear 2 lock limit.
Specifically, as shown in figure 3, above-mentioned camshaft 1 includes abutting part 11, gear connection 12 and nut interconnecting piece 13,
Abutting part 11 is abutted with 2 side of camshaft timing gear.It should be noted that the camshaft 1 can be an integral structure, it can also
To be split type structure, selected with specific reference to engine size.Nut interconnecting piece 13 passes through camshaft timing gear 2 and super
Nut 3 connect, and gear connection 12 then with 2 shaft hole matching of camshaft timing gear.Specifically, 12 axis of said gear interconnecting piece
It is less than the axial length of nut interconnecting piece 13 to length.This kind restriction can make camshaft 1 when processing only to gear connection 12
It is finished and just can satisfy 1 shaft hole matching demand of camshaft timing gear 2 and camshaft.And nut interconnecting piece 13 processes essence
Degree is lower than the machining accuracy of gear connection 12, guarantees that it connect with breakaway nut 3, further decreases 1 machining accuracy of camshaft
It is required that.
Above-mentioned camshaft timing gear 2 is provided with pilot hole along its axial direction, and pilot hole includes work department 21 and through-Penetration portion 22
(referring to Fig. 3), work department 21 and 12 hole axle of gear connection cooperate, and the machining accuracy and gear connection 12 of work department 21 are processed
Required precision is higher, and in order to reduce processing cost, the axial length of work department 21 is less than through-Penetration portion 22 in the present embodiment
Axial length.Through-Penetration portion 22 and nut interconnecting piece 13 can be clearance fit, and the requirement on machining accuracy of the two is below through-Penetration portion
22 and nut interconnecting piece 13 requirement on machining accuracy.
In order to guarantee that breakaway nut 3 pushes against camshaft timing gear 2, camshaft timing gear 2 is prevented to be mounted on cam
Result from the relative rotation of camshaft 1 after on axis 1, in the present embodiment, camshaft timing gear 2 abutted with breakaway nut 3 one
End is provided with mounting groove 23.Side wall that mounting groove 23 is abutted with breakaway nut 3 processing planarity requirements are higher, and with individually to peace
The processing of 23 side wall of tankage can guarantee to process the flatness of plane, abut relative to camshaft timing gear 2 with breakaway nut 3
Side wall all processing for can also reduce processing cost and process time.
For large bore engine, one end that above-mentioned camshaft timing gear 2 is abutted with breakaway nut 3 should be also arranged
There is weight loss groove 24, and for this kind of camshaft timing gear 2, mounting groove 23 is then arranged in 24 slot bottom of weight loss groove.
Distribution timing mechanism during the installation process, in order to guarantee that camshaft 1 does not rotate, needs to limit using locking fixture
Position, and camshaft timing gear 2 does not need processing timing marks, the assembly of camshaft timing gear 2 also without the concern for timing,
Camshaft timing gear 2 is free to rotate to adjust the position engaged with intermediate gear 4.After being installed, it is only necessary to work will be locked
Assembly and disassembly remove.
The distribution timing mechanism provided in the present embodiment, camshaft timing gear 2 are matched by breakaway nut 3 and camshaft 1
Close by camshaft timing gear 2 lock limit, without on camshaft 1 processing bolt hole and dowel hole can be realized to cam
The installation of axis 1 and camshaft timing gear 2.And do not need camshaft 1 and have enough journal diameter processing bolts hole, it reduces pair
The requirement of 1 journal diameter of camshaft then makes distribution timing mechanism overall processing requirement reduction, reduces production cost.It is right
For large bore engine sectional camshaft 1 and camshaft timing gear 2, be not required to positioning pin and position gear, and also without
Camshaft timing gear 2 need to be marked can be realized installation.
A kind of engine is provided in the present embodiment, which includes the distribution timing mechanism provided in the present embodiment.
Camshaft timing gear 2 is locked and is limited by breakaway nut 3 and the cooperation of camshaft 1 by the camshaft timing gear 2 of the engine,
Without on camshaft 1 processing bolt hole and dowel hole the installation to camshaft 1 and camshaft timing gear 2 can be realized.
And do not need camshaft 1 and have enough journal diameter processing bolts hole, the requirement to 1 journal diameter of camshaft is reduced, then
Make distribution timing mechanism overall processing required precision reduction, reduces processing cost.For large bore engine segmented
For camshaft 1 and camshaft timing gear 2, be not required to positioning pin and position gear, and without to camshaft timing gear 2 into
Installation can be realized in line flag, reduces the manufacturing cost of the engine.
A kind of vehicle is also provided in the present embodiment, which includes the engine provided in the present embodiment.The vehicle uses
Above-mentioned engine, since engine cost reduces, the manufacturing cost of the vehicle also reduces accordingly.
Note that have been shown and described above the utility model basic principles and main features and the utility model it is excellent
Point.It should be understood by those skilled in the art that the utility model is not limited to the embodiments described above, above embodiment and say
Only illustrate the principles of the present invention described in bright book, on the premise of not departing from the spirit and scope of the utility model, this
Utility model will also have various changes and improvements, and these various changes and improvements fall within the scope of the claimed invention,
The claimed range of the utility model is defined by the appending claims and its equivalent thereof.
Claims (10)
1. a kind of distribution timing mechanism, including camshaft (1) and the camshaft timing gear being arranged on the camshaft (1)
(2), which is characterized in that one end that the camshaft (1) passes through the camshaft timing gear (2) is provided with and the camshaft
The breakaway nut (3) that timing gears (2) abut, the breakaway nut (3) and the camshaft (1) cooperate the camshaft just
When gear (2) lock limit.
2. distribution timing mechanism according to claim 1, which is characterized in that the camshaft (1) include abutting part (11),
Gear connection (12) and nut interconnecting piece (13), the abutting part (11) abut with the camshaft timing gear (2) side,
The nut interconnecting piece (13) passes through the camshaft timing gear (2) and the breakaway nut (3) connects.
3. distribution timing mechanism according to claim 2, which is characterized in that gear connection (12) axial length is small
In the axial length of the nut interconnecting piece (13).
4. distribution timing mechanism according to claim 2, which is characterized in that the camshaft timing gear (2) is along its axis
To being provided with pilot hole, the pilot hole includes work department (21) and through-Penetration portion (22), the work department (21) and the gear
Interconnecting piece (12) cooperation.
5. distribution timing mechanism according to claim 4, which is characterized in that the axial length of the work department (21) is less than
The axial length of the through-Penetration portion (22).
6. distribution timing mechanism according to claim 3, which is characterized in that the camshaft timing gear (2) with it is described
One end that breakaway nut (3) abuts is provided with mounting groove (23).
7. distribution timing mechanism according to claim 6, which is characterized in that the camshaft timing gear (2) with it is described
One end that breakaway nut (3) abuts is provided with weight loss groove (24), and weight loss groove (24) slot bottom is provided with the mounting groove (23).
8. distribution timing mechanism according to claim 7, which is characterized in that the camshaft (1) is an integral structure.
9. a kind of engine, which is characterized in that including such as described in any item distribution timing mechanisms of claim 1-8.
10. a kind of vehicle, which is characterized in that including engine as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821923309.8U CN209179835U (en) | 2018-11-21 | 2018-11-21 | A kind of distribution timing mechanism, engine and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821923309.8U CN209179835U (en) | 2018-11-21 | 2018-11-21 | A kind of distribution timing mechanism, engine and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209179835U true CN209179835U (en) | 2019-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821923309.8U Active CN209179835U (en) | 2018-11-21 | 2018-11-21 | A kind of distribution timing mechanism, engine and vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107629A (en) * | 2021-05-07 | 2021-07-13 | 东风柳州汽车有限公司 | Timing positioning device and method for engine camshaft |
-
2018
- 2018-11-21 CN CN201821923309.8U patent/CN209179835U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107629A (en) * | 2021-05-07 | 2021-07-13 | 东风柳州汽车有限公司 | Timing positioning device and method for engine camshaft |
| CN113107629B (en) * | 2021-05-07 | 2022-06-07 | 东风柳州汽车有限公司 | Timing positioning device and method for engine camshaft |
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