CN108678826A - A kind of drive mechanism of vehicle cam - Google Patents
A kind of drive mechanism of vehicle cam Download PDFInfo
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- CN108678826A CN108678826A CN201810458795.9A CN201810458795A CN108678826A CN 108678826 A CN108678826 A CN 108678826A CN 201810458795 A CN201810458795 A CN 201810458795A CN 108678826 A CN108678826 A CN 108678826A
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- cam
- camshaft
- wheel
- driving wheel
- drive mechanism
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/08—Shape of cams
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The present invention provides a kind of drive mechanisms of vehicle cam, belong to automobile technical field.It, which solves existing automobile camshaft, can only export a kind of cam profile, cannot achieve the technical issues of port timing changes, cornerite changes.The drive mechanism of this vehicle cam, automobile includes camshaft and cam, it is characterized in that, this drive mechanism includes eccentric wheel, outer driving wheel, eccentric wheel and cam, which rotate, to be set on camshaft, eccentric wheel includes forming eccentric main wheel body with camshaft, the peripheral surface of main wheel body is cylindrical surface, outer driving wheel rotation is set on the peripheral surface of main wheel body, outer driving wheel can be driven to be rotated around eccentric wheel when cam axle, the drive mechanism that outer driving wheel can be made to be moved synchronously with eccentric wheel is equipped between outer driving wheel and eccentric wheel, driving structure of the driving eccentric wheel around cam axle is connected on eccentric wheel.The present invention can realize that port timing changes, and cornerite changes, and improves the performance of engine.
Description
Technical field
The invention belongs to automobile technical fields, are related to a kind of drive mechanism of vehicle cam.
Background technology
Vehicle cam is installed on camshaft, and when cam axle, band moving cam rotates synchronously and makes valve motion, from
And the opening and closing of inlet valve and exhaust valve are controlled, so that engine is generated the movement of four stroke cycles.
Existing cam is shaped on camshaft, as Chinese patent discloses a kind of camshaft (Shen
Please number：201710113694.3), including：Shaft core, and the first cam and the second cam integrally formed with shaft core, the one of shaft core
End has been radially formed protrusion, in protrusion lateral edge the axial line distance of any point to shaft core be respectively less than the first cam with
Second cam respectively edge any point to shaft core axial line distance.The cam of the camshaft and axle center be also using one at
The structure of type after camshaft design is good, can only export a kind of cam profile, therefore when opening and closing of the valve relative to piston motion
Between be it is fixed, the molded line which is exported cannot achieve port timing change, cornerite change, be unfavorable for automobile low speed torque
It is unable to get good output with the performance of the promotion of high-speed power, engine, oil consumption and discharge are also larger.
Invention content
The purpose of the present invention is there is the above problem in view of the prior art, it is proposed that a kind of transmission knot of vehicle cam
Structure, the technical problem to be solved by the present invention is to how realize that cam exports different cam profiles, to promote engine
Energy.
Object of the invention can be realized by the following technical scheme：A kind of drive mechanism of vehicle cam, automobile include
Camshaft and cam, which is characterized in that this drive mechanism includes eccentric wheel, outer driving wheel, and the eccentric wheel and the cam are equal
Rotation is set on camshaft, and the eccentric wheel includes forming eccentric main wheel body, the peripheral surface of the main wheel body with camshaft
For cylindrical surface, the outer driving wheel rotation is set on the peripheral surface of main wheel body, and when cam axle can drive outer driving
Wheel is rotated around eccentric wheel, and the transmission knot that outer driving wheel can be made to be moved synchronously with cam is equipped between the outer driving wheel and cam
Structure is connected with driving structure of the driving eccentric wheel around cam axle on the eccentric wheel.
Camshaft is connect by chain or belt with engine crankshaft, and when crank rotation drives cam axle.Cam
Axis drives outer driving wheel to rotate first, then passes through the drive mechanism between outer driving wheel and cam so that outer driving wheel drives convex
Wheel rotation.Since the peripheral surface of eccentric wheel main wheel body is cylindrical surface, and the rotation of outer driving wheel is set on the peripheral surface of main wheel body,
Therefore when camshaft drives outer driving wheel rotation, eccentric wheel can't rotate, and cam output at this time is a kind of specific convex
Take turns molded line.When needing to change the cam profile of output, can be rotated with movable eccentric wheel by driving structure, and outer driving wheel is
It is set on the main wheel body of eccentric wheel, and main wheel body forms bias with camshaft, therefore can be driven outside when eccentric wheel rotates
Driving wheel moves, and the position of outer driving wheel opposing cam axis changes, at this point, since cam is that rotation is set on camshaft
, because when driving wheel moves in addition certain angle can be rotated with moving cam by the drive mechanism between outer driving wheel and cam
Degree so that the cam profile of cam output changes.Therefore, the drive mechanism of this cam can be realized by the angle of eccentric wheel
The output of a variety of cam profiles so that valve opening/closing time is changed, and realizes that port timing changes, cornerite changes, Neng Gouman
Requirement of the sufficient engine in different operating modes to torque and power, greatly improves the performance of engine, while improving engine oil
Consumption and discharge.
In the drive mechanism of above-mentioned vehicle cam, the drive mechanism includes the pin being connected on outer driving wheel
One, the cam upper edge camshaft radially offers the sliding slot one of vertical bar shape, and one end of the pin one is slidably connected at described
In sliding slot one.The sliding slot one of vertical bar shape limits degree of freedom of the pin one in camshaft circumferential direction, therefore can make cam and outer drive
Driving wheel moves synchronously together, and since outer driving wheel is set on eccentric wheel, either camshaft drives outer driving
Wheel rotation or eccentric wheel drive outer driving wheel to move, outer driving wheel can opposing cam axis shift, therefore one energy of pin
Length direction along sliding slot one slides so that the radial direction of one opposing cam axis of pin has degree of freedom, ensures the suitable of outer driving wheel
Smooth movement.
In the drive mechanism of above-mentioned vehicle cam, the drive mechanism includes the pillar being located on flank of cam, institute
The radial direction for stating outer driving wheel upper edge camshaft offers the slide opening of vertical bar shape, and the pillar is slidably connected in the slide opening.
In the drive mechanism of above-mentioned vehicle cam, the outer driving wheel is in annular shape, is connected on the outer driving wheel
Have a pin two, the pin one and pin two be located at outer driving wheel it is same diametrically, it is connected on the periphery wall of the camshaft
There is trundle, the trundle and camshaft are perpendicular, offer the sliding slot of vertical bar shape on the trundle along its length
Two, one end of the pin two is slidably connected in the sliding slot two.Trundle is rotated together with camshaft, the sliding slot of vertical bar shape
Two so that pin two is only capable of radially sliding along camshaft, therefore outer driving wheel can be driven to rotate when trundle rotates.And cunning
The principle of slot one is similar, and pin two can be slided along the length direction of sliding slot two so that pin two has with respect to the radial direction of camshaft
Degree of freedom ensures the smooth movement that outer driving wheel can be on eccentric wheel.
In the drive mechanism of above-mentioned vehicle cam, the outer driving wheel is located at the side of cam, the cam direction
The resigning groove to swing back and forth in cam for trundle is offered on the side of outer driving wheel, the trundle stretches into described allow
In the groove of position.When eccentric wheel rotates, the swing of left and right can occur for trundle.At this time by the way that resigning groove is arranged in cam,
Trundle is arranged inside cam, so that cam and outer driving wheel can lean on relatively close, structure is compacter, subtracts
Small axial dimension of the entire mechanism on camshaft, is conducive to the optimization design of size.
In the drive mechanism of above-mentioned vehicle cam, spliced eye, the biography are offered on the periphery wall of the camshaft
The inner end of dynamic pin, which is fixed, to be plugged in the spliced eye, and the outer end of the trundle is located in the resigning groove, the sliding slot
Two are located at the outer end of trundle.Trundle plugged and fixed is in spliced eye, therefore trundle and camshaft can be separately manufactured, no
It is only easily manufactured, trundle need to be only inserted into spliced eye when mounted, installation is also more convenient.
In the drive mechanism of above-mentioned vehicle cam, the axis hole passed through for camshaft is offered in the middle part of the cam
One, the resigning groove has left side wall, right side wall and arc-shaped lateral wall, between the left side wall and the inner end of right side wall
The opening being connected with axis hole one is formed, the lateral wall is connected between left side wall and the outer end of right side wall, the left side wall
The distance between right side wall is gradually increased by inner end to outer end.Since eccentric wheel is in rotation, trundle is to do left and right back and forth
It swings, and the axle center of camshaft remains unchanged, therefore the swinging track of trundle is a sector, the application will also step down recessed
Slot design reduces the face of resigning groove in being substantially in sector under the premise of ensureing that trundle is swung smoothly as far as possible
Product, avoids resigning groove area larger and influences the intensity of cam.
In the drive mechanism of above-mentioned vehicle cam, the eccentric wheel further includes the driving being located on main wheel body one side
Wheel body, eccentric wheel have through main wheel body and the axis hole two of wheel body, the camshaft are driven rotationally to be threaded through the axis hole
In two, the center line of the axis hole two is overlapped with the center line line of driving wheel body, the center of the center line and main wheel body of axis hole two
Line sequence.The center line of axis hole two and the center line sequence of main wheel body, therefore main wheel body and camshaft form bias, and axis
The center line in hole two is overlapped with the center line line of driving wheel body, therefore it is concentric setting to drive wheel body and camshaft, in this way
Driving structure convenient can be connected on driving wheel body, band movable eccentric wheel rotates.
In the drive mechanism of above-mentioned vehicle cam, the driving structure includes that the fixed eccentric wheel that is set in drives wheel body
On driven gear and the driving gear that is meshed with driven gear, the driving gear, which is connected with, to drive driving gear to rotate
Driving motor.Driving motor passes sequentially through driving gear, driven gear band movable eccentric wheel rotates.
Compared with prior art, the drive mechanism of this vehicle cam has the following advantages：
1, the drive mechanism of this vehicle cam is eccentric by changing by the way that eccentric wheel and outer driving wheel are arranged on camshaft
The angle of wheel can realize the output of different cam profiles, therefore can change port timing and cornerite in real time in different operating modes, together
When can also pass through and change phase and cornerite and promote low engine speed and high speed performance.
2, the drive mechanism of this vehicle cam is realized by mechanical transmission structure, therefore at low cost, can be in various shelves
It is generally used in secondary vehicle, therefore there is stronger practicability.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention.
Fig. 2 is the explosive view of the present invention.
Fig. 3 is the dimensional structure diagram that the present invention saves driving gear and driven gear.
Fig. 4 is the front view of the present invention.
Fig. 5 is the sectional view of A-A in Fig. 4.
Fig. 6 is the front view one that the present invention saves driving gear and driven gear.
Fig. 7 is the front view two that the present invention saves driving gear and driven gear.
In figure, 1, camshaft；2, cam；3, eccentric wheel；31, main wheel body；32, wheel body is driven；4, outer driving wheel；5, pin
One；6, sliding slot one；7, resigning groove；71, left side wall；72, right side wall；73, lateral wall；8, pin two；9, trundle；10, sliding
Slot two；11, spliced eye；12, axis hole one；13, driving gear；14, driven gear；15, driven-mechanism；16, axis hole two.
Specific implementation mode
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
Embodiment one
As shown in Figure 1, automobile includes camshaft 1, cam 2, the drive mechanism of this vehicle cam includes eccentric wheel 3, outer drive
Driving wheel 4, eccentric wheel 3 and cam 2 are rotated and are set on camshaft 1, and outer driving wheel 4 is in annular shape, outer driving wheel 4 and eccentric wheel
3 are located at the same side of cam 2.The driving structure that driving eccentric wheel 3 is rotated around camshaft 1 is connected on eccentric wheel 3.Driving structure
Including the fixed driven gear 14 being set on the driving wheel body 32 of eccentric wheel 3 and the driving gear being meshed with driven gear 14
13, the driving gear 13 is connected with the driving motor that driving gear 13 can be driven to rotate.Driving motor passes sequentially through driving tooth
Wheel 13, driven gear 14 are rotated with movable eccentric wheel 3.
In conjunction with shown in Fig. 1 and Fig. 2, eccentric wheel 3 includes forming eccentric main wheel body 31 with camshaft 1 and being located at main wheel body 31
Driving wheel body 32 on one side, driving wheel body 32 are integrally formed with main wheel body 31.The peripheral surface of main wheel body 31 is cylindrical surface, outside
The rotation of driving wheel 4 is set on the peripheral surface of main wheel body 31.Eccentric wheel 3 has through main wheel body 31 and drives the axis hole of wheel body 32
2 16, camshaft 1 is rotationally threaded through in axis hole 2 16, the center line line weight of the center line and driving wheel body 32 of axis hole 2 16
It closes, the center line of axis hole 2 16 and the center line sequence of main wheel body 31.The center of the center line and main wheel body 31 of axis hole 2 16
Line sequence, therefore main wheel body 31 and camshaft 1 form bias, and the center line of the center line of axis hole 2 16 and driving wheel body 32
Line overlaps, therefore it is concentric setting to drive wheel body 32 and camshaft 1, convenient can connect driving on driving wheel body 32 in this way
Structure, band movable eccentric wheel 3 rotate.
Camshaft 1 can drive outer driving wheel 4 to be rotated around eccentric wheel 3 when rotating, specifically, in conjunction with Fig. 2, Fig. 4 and Fig. 5 institute
Show, be fixed with pin 28 on outer driving wheel 4, pin 1 and pin 28 be located at outer driving wheel 4 it is same diametrically, camshaft 1
Periphery wall on be fixed with trundle 9, trundle 9 and camshaft 1 are perpendicular, are offered along its length on trundle 9 straight
One end of the sliding slot 2 10 of strip, pin 28 is slidably connected in sliding slot 2 10.Trundle 9 is rotated together with camshaft 1, directly
The sliding slot 2 10 of strip is so that pin 28 is only capable of radially sliding along camshaft 1, therefore can be driven outside when trundle 9 rotates
Driving wheel 4 rotates.Similar with the principle of sliding slot 1, pin 28 can be slided along the length direction of sliding slot 2 10 so that pin 28
The radial direction of opposing cam axis 1 has degree of freedom, ensures that outer driving wheel 4 can be in the smooth movement on eccentric wheel 3.
As shown in Figure 2 and Figure 5, spliced eye 11 is offered on the periphery wall of camshaft 1, the inner end of trundle 9, which is fixed, to be plugged
In spliced eye 11, the outer end of trundle 9 is located in resigning groove 7, and sliding slot 2 10 is located at the outer end of trundle 9.Trundle 9 is inserted
It connects and is fixed in spliced eye 11, therefore trundle 9 and camshaft 1 can be separately manufactured, it is not only easily manufactured, it only needs when mounted
Trundle 9 is inserted into spliced eye, installation is also more convenient.
As shown in Figures 2 and 3, cam 2 is towards offering on the side of outer driving wheel 4 for trundle 9 in cam 2 back and forth
The resigning groove 7 of swing, trundle 9 stretch into resigning groove 7.The middle part of cam 2 offers the axis hole one passed through for camshaft 1
12, resigning groove 7 has left side wall 71, right side wall 72 and arc-shaped lateral wall 73, the inner end of left side wall 71 and right side wall 72
Between form the opening that is connected with axis hole 1, lateral wall 73 is connected between left side wall 71 and the outer end of right side wall 72, a left side
The distance between side wall 71 and right side wall 72 are gradually increased by inner end to outer end.Since eccentric wheel 3 is in rotation, trundle 9 is
Do what left and right swung back and forth, and the axle center of camshaft 1 remains unchanged, therefore the swinging track of trundle 9 is a sector, this Shen
It is substantially in sector to be also in by the design of resigning groove 7 please, therefore is reduced under the premise of ensureing that trundle 9 is swung smoothly as far as possible
7 area of resigning groove avoids 7 area of resigning groove larger and influences the intensity of cam 2.When eccentric wheel 3 rotates, trundle 9
The swing of left and right can occur.Pass through the setting resigning groove 7 in cam 2 at this time so that trundle 9 can be arranged in cam 2
Portion, so that cam 2 and outer driving wheel 4 can lean on relatively close, structure is compacter, reduces entire mechanism on camshaft 1
Axial dimension, be conducive to the optimization design of size.
As shown in Figure 2 and Figure 5, the fortune synchronous with eccentric wheel 3 of outer driving wheel 4 can be made by being equipped between outer driving wheel 4 and eccentric wheel 3
Dynamic drive mechanism, the drive mechanism include the pin 1 being connected on outer driving wheel 4, and 2 upper edge camshaft of cam 1 is radial to be opened
One end of sliding slot 1 equipped with vertical bar shape, pin 1 is slidably connected in sliding slot 1.The sliding slot 1 of vertical bar shape limits pin
One 5 degree of freedom in 1 circumferential direction of camshaft is followed closely, therefore cam 2 can be made to be moved synchronously together with outer driving wheel 4, and due to outer drive
Driving wheel 4 is set on eccentric wheel 3, therefore either camshaft 1 drives the rotation of outer driving wheel 4 or eccentric wheel 3 to drive outside
Driving wheel 4 moves, outer driving wheel 4 can opposing cam axis 1 shift, therefore pin 1 can be along the length direction of sliding slot 1
Sliding so that the radial direction of one 5 opposing cam axis 1 of pin has degree of freedom, ensures the smooth movement of outer driving wheel 4.
The operation principle of this programme is briefly introduced below in association with attached drawing：
Camshaft 1 is connect by chain or belt with engine crankshaft, drives camshaft 1 to rotate when crank rotation.It is convex
Wheel shaft 1 drives outer driving wheel 4 to rotate first, then passes through the drive mechanism between outer driving wheel 4 and cam 2 so that outer driving wheel 4
Band moving cam 2 rotates synchronously.Since the peripheral surface of 3 main wheel body 31 of eccentric wheel is cylindrical surface, and the rotation of outer driving wheel 4 is set in master
On the peripheral surface of wheel body 31, therefore when camshaft 1 drives outer driving wheel 4 to rotate, eccentric wheel 3 can't rotate, at this time
Cam 2 exports a kind of specific cam profile.
It can be 3 turns with movable eccentric wheel by driving structure when needing to change the cam profile of output in conjunction with Fig. 6 and Fig. 7
It is dynamic, and outer driving wheel 4 is to be set on the main wheel body 31 of eccentric wheel 3, and main wheel body 31 and camshaft 1 form bias, therefore
Outer driving wheel 4 can be driven to move when eccentric wheel 3 rotates, the position of 4 opposing cam axis 1 of outer driving wheel changes, at this point, by
It is that rotation is set on camshaft 1 in cam 2, it can be by between outer driving wheel 4 and cam 2 when because of the movement of driving wheel 4 in addition
Drive mechanism drive camshaft 1 rotate certain angle so that cam 2 export cam profile change.
Therefore, the drive mechanism of this cam 2 can realize that a variety of cam profiles are exported to quilt by the angle of eccentric wheel 3
Driving mechanism 15 so that valve opening/closing time is changed, and realizes that port timing changes, cornerite changes, and disclosure satisfy that engine
In requirement of the different operating modes to torque and power, the performance of engine is greatly improved, while improving engine consumption and discharge.
Embodiment two
The present embodiment is essentially identical with the structure and principle of embodiment one, and different place is：The structure of transmission can
To be replaced using following scheme, drive mechanism includes the pillar being located on 2 side of cam, the diameter of 4 upper edge camshaft 1 of outer driving wheel
To the slide opening for offering vertical bar shape, pillar is slidably connected in slide opening.
Embodiment three
The present embodiment is essentially identical with the structure and principle of embodiment one, and different place is, camshaft 1 can be with
It uses and drives outer driving wheel 4 to rotate with lower structure, there is vertical lug boss on trundle 9, in 4 upper edge cam of outer driving wheel
Axis radially offers slide opening, and lug boss is slidably connected in slide opening.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although 1, camshaft is used more herein；2, cam；3, eccentric wheel；31, main wheel body；32, wheel body is driven；4、
Outer driving wheel；5, pin one；6, sliding slot one；7, resigning groove；71, left side wall；72, right side wall；73, lateral wall；8, pin two；
9, trundle；10, sliding slot two；11, spliced eye；12, axis hole one；13, driving gear；14, driven gear；15, driven-mechanism；
16, the second-class term of axis hole, but it does not preclude the possibility of using other terms.The use of these items is only for more easily
Describe and explain the essence of the present invention；Being construed as any one of the additional limitations all is disagreed with spirit of that invention
's.
Claims (8)
1. a kind of drive mechanism of vehicle cam, automobile includes camshaft (1) and cam (2), which is characterized in that this drive mechanism
Including eccentric wheel (3), outer driving wheel (4), the eccentric wheel (3) and the cam (2) are rotated and are set on camshaft (1),
The eccentric wheel (3) includes forming eccentric main wheel body (31) with camshaft (1), and the peripheral surface of the main wheel body (31) is cylinder
Face, outer driving wheel (4) rotation are set on the peripheral surface of main wheel body (31), and the camshaft (1) can drive outer when rotating
Driving wheel (4) around eccentric wheel (3) rotate, between the outer driving wheel (4) and cam (2) equipped with can make outer driving wheel (4) with it is convex
The drive mechanism that (2) move synchronously is taken turns, the drive that driving eccentric wheel (3) is rotated around camshaft (1) is connected on the eccentric wheel (3)
Dynamic structure.
2. the drive mechanism of vehicle cam according to claim 1, which is characterized in that the drive mechanism includes being connected in
Pin one (5) on outer driving wheel (4), cam (2) the upper edge camshaft (1) radially offer the sliding slot one (6) of vertical bar shape,
One end of the pin one (5) is slidably connected in the sliding slot one (6).
3. the drive mechanism of vehicle cam according to claim 2, which is characterized in that the outer driving wheel (4) is in annulus
Shape, pin two (8) is fixed on the outer driving wheel (4), and the pin one (5) is located at outer driving wheel (4) with pin two (8)
It is same diametrically, trundle (9), the trundle (9) and camshaft (1) phase are fixed on the periphery wall of the camshaft (1)
Vertically, the sliding slot two (10) of vertical bar shape, one end of the pin two (8) are offered on the trundle (9) along its length
It is slidably connected in the sliding slot two (10).
4. the drive mechanism of vehicle cam according to claim 3, which is characterized in that the outer driving wheel (4) is located at convex
Take turns the side of (2), the cam (2) is towards offering on the side of outer driving wheel (4) for trundle (9) to come in cam (2)
The dynamic resigning groove (7) of backswing, the trundle (9) are stretched into the resigning groove (7).
5. the drive mechanism of vehicle cam according to claim 4, which is characterized in that the periphery wall of the camshaft (1)
On offer spliced eye (11), the inner end of the trundle (9), which is fixed, to be plugged in the spliced eye (11), the trundle
(9) outer end is located in the resigning groove (7), and the sliding slot two (10) is located at the outer end of trundle (9).
6. the drive mechanism of vehicle cam according to claim 5, which is characterized in that opened up in the middle part of the cam (2)
There are the axis hole one (12) passed through for camshaft (1), the resigning groove (7) that there is left side wall (71), right side wall (72) and be in arc
The lateral wall (73) of shape is formed between the left side wall (71) and the inner end of right side wall (72) and is opened with what axis hole one (12) was connected
Mouthful, the lateral wall (73) is connected between left side wall (71) and the outer end of right side wall (72), the left side wall (71) and right side
The distance between wall (72) is gradually increased by inner end to outer end.
7. the drive mechanism of the vehicle cam according to any one of claim 1 to 6, which is characterized in that the bias
Wheel (3) further includes the driving wheel body (32) being located on main wheel body (31) one side, eccentric wheel (3) have through main wheel body (31) and
The axis hole two (16) of wheel body (32), the camshaft (1) is driven rotationally to be threaded through in the axis hole two (16), the axis hole
The center line of two (16) is overlapped with the center line line of driving wheel body (32), in the center line and main wheel body (31) of axis hole two (16)
Heart line sequence.
8. the drive mechanism of vehicle cam according to claim 7, which is characterized in that the driving structure includes fixing sleeve
The driven gear (14) being located on eccentric wheel (3) driving wheel body (32) and the driving gear being meshed with driven gear (14)
(13), the driving gear (13) is connected with the driving motor that driving gear (13) can be driven to rotate.
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| CN201810458795.9A CN108678826B (en) | 2018-05-14 | 2018-05-14 | A kind of drive mechanism of vehicle cam |
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| CN201810458795.9A CN108678826B (en) | 2018-05-14 | 2018-05-14 | A kind of drive mechanism of vehicle cam |
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| CN108678826B CN108678826B (en) | 2019-10-15 |
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| JP2015200244A (en) * | 2014-04-09 | 2015-11-12 | 株式会社オティックス | Valve gear mechanism of internal combustion engine |
| JP2016138538A (en) * | 2015-01-29 | 2016-08-04 | トヨタ自動車株式会社 | Variable valve device of internal combustion engine |
| CN107269339A (en) * | 2016-03-31 | 2017-10-20 | 现代自动车株式会社 | Continuous variable valve timing apparatus and the engine provided with the device |
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| CN108678826B (en) | 2019-10-15 |
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