CN107939467A - Valve intake and exhaust rocker structure and diesel engine - Google Patents
Valve intake and exhaust rocker structure and diesel engine Download PDFInfo
- Publication number
- CN107939467A CN107939467A CN201711457120.4A CN201711457120A CN107939467A CN 107939467 A CN107939467 A CN 107939467A CN 201711457120 A CN201711457120 A CN 201711457120A CN 107939467 A CN107939467 A CN 107939467A
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- Prior art keywords
- intake
- rocker
- valve
- support shaft
- exhaust
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Links
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The present invention provides a kind of valve intake and exhaust rocker structure, intake rocker and exhaust rocker arm are supported by the first support shaft and the second support shaft respectively, first support shaft and the second support shaft arranged for interval on the swaying direction of intake rocker, near-end valve of the valve close to rocker arm bracket is arranged to exhaust valve, distal end valve of the valve away from rocker arm bracket is arranged to intake valve, pass through the wobble drive distal end valve event of intake rocker, pass through the wobble drive near-end valve event of exhaust rocker arm, due to the spaced apart structure of support shaft on rocker arm bracket, and intake rocker and exhaust rocker arm is coordinated to control the valve in same swinging distance respectively, so that intake valve and exhaust valve work synchronism improve, the lift of valve is easily controllable, improve the uniformity of intake and exhaust work.Present invention also offers a kind of diesel engine with above-mentioned valve intake and exhaust rocker structure.
Description
Technical field
The present invention relates to inlet and exhaust valve technical field, more specifically to a kind of valve intake and exhaust rocker structure and bavin
Oil machine.
Background technology
Valve actuating mechanism is the important composition system of engine, its function is according to the work carried out in each cylinder of engine
Circulation and the requirement of ignition order, time opening and close inlet and outlet door, fresh air is timely entered cylinder, and exhaust gas and
When from cylinder discharge.
Inlet and exhaust valve is all hung upside down in cylinder head, is made of valve collet, cotter seat, valve spring etc..Intake and exhaust
Door is driven by intake and exhaust rocker arm shaft and is opened and closed, and rational intake and exhaust Rocker Ratio, can effectively ensure that valve stroke and kinetics
Energy.
Intake rocker and exhaust rocker arm are coaxially arranged in the prior art, pass through intake rocker and the independent pendulum of exhaust rocker arm
It is dynamic, drive inlet and exhaust valve to swing.However, existing intake rocker and exhaust rocker arm are more using synchronous driving near-end valve and distal end
Valve synchronization action, to ensure the uniformity of intake and exhaust, and avoids interfering for intake rocker and exhaust rocker arm, is easy to cause
Unbalance stress in intake rocker and exhaust rocker arm swing process, causes inlet and exhaust valve to be opened and closed nonsynchronous problem.
Therefore, the uniformity of inlet and exhaust valve work how is improved, is a problem to be solved by those skilled in the art.
The content of the invention
In view of this, the present invention provides a kind of valve intake and exhaust rocker structure, to improve the consistent of inlet and exhaust valve work
Property；Present invention also offers a kind of diesel engine.
In order to achieve the above object, the present invention provides following technical solution：
A kind of valve intake and exhaust rocker structure, including intake rocker and exhaust rocker arm, and the support intake rocker and
The rocker arm bracket that the exhaust rocker arm is swung；
The rocker arm bracket includes supporting the first support shaft of the intake rocker respectively, and the of the support exhaust rocker arm
Two support shafts, first support shaft and second support shaft arranged for interval along the swaying direction of the intake rocker；
The swinging end of the intake rocker is provided with the distal end rocking arm pressure head of driving distal end valve, the pendulum of the exhaust rocker arm
Moved end is provided with the near-end rocking arm pressure head of driving near-end valve.
Preferably, in above-mentioned valve intake and exhaust rocker structure, the exhaust rocker arm includes being set up on the rocker arm bracket
The rocking arm bridge of side, positioned at the bottom of the rocking arm bridge, and the coordinated respectively with the axial both ends of second support shaft suit
One axle sleeve and the second axle sleeve, the near-end rocking arm pressure head stretch out in the top of the rocking arm bridge.
Preferably, in above-mentioned valve intake and exhaust rocker structure, the near-end rocking arm pressure head includes being respectively arranged at described
The first near-end rocking arm pressure head and the second near-end rocking arm pressure head at the both ends in rocking arm bridge support direction.
Preferably, in above-mentioned valve intake and exhaust rocker structure, second support shaft include respectively with the first axle
The the first sub- support shaft and the second sub- support shaft that set and second axle sleeve suit coordinate.
Preferably, in above-mentioned valve intake and exhaust rocker structure, first support shaft is located at the described first sub- support shaft
With the middle part of the described second sub- support shaft, the 3rd axis closed with first support sleeve assembling is provided with the intake rocker
Set.
Preferably, in above-mentioned valve intake and exhaust rocker structure, the intake rocker include stretch out in the rocking arm bridge and
Intake rocker bar between the rocker arm bracket, the swinging end of the intake rocker bar are extended be connected respectively with distal end valve
One distal end rocking arm pressure head and the second distal end rocking arm pressure head.
Preferably, in above-mentioned valve intake and exhaust rocker structure, the push rod drive seat of the exhaust rocker arm is arranged at described
Rocking arm bridge supports the one end in direction along it；The push rod drive seat of the intake rocker is arranged at the driving of the intake rocker bar
End.
Preferably, in above-mentioned valve intake and exhaust rocker structure, the rocker arm bracket includes rocker arm bracket body, described first
Support axis and second support shaft are installed in the front-end and back-end of the rocker arm bracket body respectively；Second support shaft include with
The rocker arm bracket body is affixed, and connects the connection axostylus axostyle of the described first sub- support shaft and the second sub- support shaft.
A kind of diesel engine, is provided with valve intake and exhaust rocker structure, the valve intake and exhaust rocker structure in its cylinder head
For the valve intake and exhaust rocker structure described in as above middle any one.
Valve intake and exhaust rocker structure provided by the invention, including intake rocker and exhaust rocker arm, and support air inlet are shaken
The rocker arm bracket that arm and exhaust rocker arm are swung；Rocker arm bracket includes supporting the first support shaft of intake rocker, and support exhaust to shake respectively
Second support shaft of arm, the first support shaft and the second support shaft arranged for interval along the swaying direction of intake rocker；Intake rocker
Swinging end be provided with the distal end rocking arm pressure head of driving distal end valve, the swinging end of exhaust rocker arm is provided with driving near-end valve
Near-end rocking arm pressure head.Intake rocker and exhaust rocker arm are supported by the first support shaft and the second support shaft respectively, the first support shaft and
Second support shaft arranged for interval on the swaying direction of intake rocker, near-end valve of the valve close to rocker arm bracket is arranged to be vented
Valve, is arranged to intake valve by distal end valve of the valve away from rocker arm bracket, passes through the wobble drive distal end valve of intake rocker
Action, by the wobble drive near-end valve event of exhaust rocker arm, due to the spaced apart structure of support shaft on rocker arm bracket, and matches somebody with somebody
Conjunction intake rocker and exhaust rocker arm control the valve in same swinging distance respectively so that intake valve and exhaust valve work are same
Step property improves, and the lift of valve is easily controllable, improves the uniformity of intake and exhaust work.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the installation diagram of valve intake and exhaust rocker structure provided by the invention；
Fig. 2 is the structure diagram of rocker arm bracket in Fig. 1；
Fig. 3 is the explosive view of valve intake and exhaust rocker structure in Fig. 1.
Embodiment
The invention discloses a kind of valve intake and exhaust rocker structure, improves the uniformity that inlet and exhaust valve works；The present invention
Additionally provide a kind of diesel engine.
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Whole description, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
The embodiment of the present invention, the every other reality that those of ordinary skill in the art are obtained without making creative work
Example is applied, belongs to the scope of protection of the invention.
As shown in Figure 1-Figure 3, Fig. 1 is the installation diagram of valve intake and exhaust rocker structure provided by the invention；Fig. 2 is in Fig. 1
The structure diagram of rocker arm bracket；Fig. 3 is the explosive view of valve intake and exhaust rocker structure in Fig. 1.
The present invention provides a kind of valve intake and exhaust rocker structure, including intake rocker 4 and exhaust rocker arm 5, and support
The rocker arm bracket 3 that intake rocker 4 and exhaust rocker arm 5 are swung；Rocker arm bracket 3 includes supporting the first support shaft 1 of intake rocker 4 respectively,
With the second support shaft 2 of support exhaust rocker arm 5, the first support shaft 1 and the second support shaft 2 are along the swaying direction of intake rocker 4
Arranged for interval；The swinging end of exhaust rocker arm 5 is provided with the near-end rocking arm pressure head of driving near-end valve 57, the swing of intake rocker 4
End is provided with the distal end rocking arm pressure head of driving distal end valve 45.Intake rocker 4 and exhaust rocker arm 5 are respectively by 1 He of the first support shaft
Second support shaft 2 supports, the first support shaft 1 and the second support shaft 2 arranged for interval on the swaying direction of intake rocker 4, by gas
Door is arranged to intake and exhaust valve close to the near-end valve 57 of rocker arm bracket 4, and distal end valve 45 of the valve away from rocker arm bracket 3 is arranged to
Intake valve, is acted by the wobble drive distal end valve 45 of intake rocker 4, passes through the wobble drive near-end gas of exhaust rocker arm 5
Door 57 acts, and due to the spaced apart structure of support shaft on rocker arm bracket 3, and coordinates intake rocker 4 and exhaust rocker arm 5 to control respectively
Valve in same swinging distance so that intake valve and exhaust valve work synchronism improve, and the lift of valve is easily controllable,
Improve the uniformity of intake and exhaust work.
In one specific embodiment of this case, exhaust rocker arm 5 includes the rocking arm bridge 51 for being set up in the top of rocker arm bracket 3, positioned at shaking
The bottom of arm bridge 51, and the first axle sleeve 52 and the second axle sleeve coordinated respectively with the axial both ends suit of the second support shaft 2, near-end
Rocking arm pressure head stretches out in the top of rocking arm bridge 51.Exhaust rocker arm 5 includes rocking arm bridge 51 and the first axle sleeve 52 to the support of rocking arm bridge
With the second axle sleeve, rocking arm bridge 51 is set up in the top of rocker arm bracket 3, passes through the first axle sleeve 52 and the second axle sleeve and the first support shaft 52
Axial both ends sleeve structure, realize the swing of rocking arm bridge 51.
Near-end rocking arm pressure head is stretched out at the top of rocking arm bridge 51, and near-end rocking arm pressure head extend out to near-end by the top of rocking arm bridge 51
Valve press-fit, exhaust rocker arm 5 is in near-end valve compaction process, surrounding frame support air inlet between rocking arm bridge 51 and rocker arm bracket 3
The passage of Rocker arm 4.
In one specific embodiment of this case, near-end rocking arm pressure head includes being respectively arranged at the both ends that rocking arm bridge 51 supports direction
The first near-end rocking arm pressure head 54 and the second near-end rocking arm pressure head 55.In order to avoid in 4 swing process of intake rocker, near-end rocking arm
Interference is produced between pressure head and intake rocker 4, near-end rocking arm for pressing head is set to the both ends for supporting direction positioned at rocking arm bridge 51 respectively,
In particular close to the position of the first axle sleeve 52 and the second axle sleeve, the first near-end rocking arm pressure head 54 and the second near-end rocking arm pressure head
55, the two drives one in two valves of near-end valve, the first near-end rocking arm pressure head 54 and the second near-end rocking arm for pressing respectively
Surround what is connected with 51 bottom of swing arm bridge between first 55, house the passage that intake rocker 4 is swung.
In one specific embodiment of this case, the second support shaft 2 includes assembling with the first axle sleeve 51 and the second axle sleeve set respectively
The the first sub- 22 and second sub- support shaft 21 of support shaft closed.In order to further reduce the structure of exhaust rocker arm 5, and fully expand row
Space between gas Rocker arm 5 and rocker arm bracket 3, the second support shaft 2 is set and is assembled respectively with the first axle sleeve 52 and the second axle sleeve set
The the first sub- 22 and second sub- bearing axle 21 of support shaft closed, is set with exhaust rocker arm 5 and coordinated respectively by single sub- support shaft,
Reduce the space hold between exhaust rocker arm 5 and rocker arm bracket 3.
In one specific embodiment of this case, the first support shaft 1 is located in the first sub- 52 and second sub- support shaft of support shaft
Portion, the 3rd axle sleeve 46 coordinated with the first support shaft 1 suit is provided with intake rocker 4.Due to exhaust rocker arm 5 and rocker arm bracket 3
Between space abundant release, the first support shaft 1 can be arranged between the first sub- 22 and second sub- support shaft 21 of support shaft, into
The 3rd axle sleeve 46 and the first support shaft 1 suit is set to coordinate on gas Rocker arm 4.
In one specific embodiment of this case, the air inlet that intake rocker 4 includes stretching out between rocking arm bridge 51 and rocker arm bracket 3 is shaken
Armed lever 41, the swinging end of intake rocker bar 41 are extended with the first distal end rocking arm pressure head 42 being connected respectively with distal end valve 45 and
Two distal end rocking arm pressure heads 43.Intake rocker 4 drives two valve synchronization actions of distal end valve at the same time, since intake rocker 4 is stretched
Enter the middle part of exhaust rocker arm 5 and rocker arm bracket 3, and it is supported by the first support shaft 1 is independent, because reducing the knot of intake rocker 4 as far as possible
Structure, and symmetrical frame support is in the first support shaft 1.
Intake rocker 4 is stretched between rocking arm bridge 51 and rocker arm bracket 3 by intake rocker bar 41, the swinging end of intake rocker bar 41
Symmetrical to be extended with the first distal end rocking arm pressure head 42 and the second distal end rocking arm pressure head 43, intake rocker bar 41 is moved in driving distal end valve
When making, its drive end is swung at the middle part of rocking arm bridge 51 and rocker arm bracket 3, by intake rocker and exhaust rocker arm amplitude of fluctuation
Design, avoids interfering in the two course of work.The swinging end of intake rocker bar 41 is in the first near-end rocking arm pressure head 54 and
Swung between two near-end rocking arm pressure heads 55, should design that intake rocker bar 41 separates the first distal end rocking arm pressure head 42 and the second distal end is shaken
The position of arm pressure head 43 is avoided with producing interference in 57 course of work of near-end valve.
In one specific embodiment of this case, the push rod drive seat of exhaust rocker arm 5 is arranged at rocking arm bridge 51 and supports direction along it
One end；The push rod drive seat of intake rocker 4 is arranged at the drive end of intake rocker bar 41.Intake rocker 4 is by single first
Support shaft 1 supports, and when it swings up and down, is subject to the symmetrical thrust of distal end valve, the push rod drive seat 44 of intake rocker 4 is set
The drive end of intake rocker bar 41 is placed in, and on the center line of the first support shaft 1, so as to improve 4 swing process of intake rocker
In stability.Exhaust rocker arm 5 is supported be subject to the first sub- 52 and second sub- support shaft of support shaft at the same time, can be by exhaust rocker arm 5
Push rod drive seat 56 be arranged at one end that rocking arm bridge 51 is supported direction by the first support shaft 52, by swing arm bridge 51 i.e. can be achieved pair
The synchronous driving of first near-end rocking arm pressure head 54 and the second near-end rocking arm pressure head 55.
In one specific embodiment of this case, rocker arm bracket includes rocker arm bracket body, and the first support shaft 1 and the second support shaft 2 are divided
The front-end and back-end of rocker arm bracket body are not installed in；Second support shaft 2 connects the first son branch including affixed with rocker arm bracket body
Support the connection axostylus axostyle 23 of 22 and second sub- support shaft 21 of axis.Due to the first support shaft 1 and the second support shaft 2 and intake rocker 4 and
Exhaust rocker arm 5 is sleeve structure, and rocker arm bracket 3 is arranged to by rocker arm bracket body and the first support shaft 1,2 groups of the second support shaft
Into Split type structure, the fixing end of the first support shaft 1 is located at its axial both ends, the first support shaft 1 is set in intake rocker 4
After upper, the front end of rocker arm bracket 3 is installed in by screw.Second support shaft 2 includes the first sub- 22 and second sub- support shaft of support shaft
21, the two is connected by connecting axostylus axostyle 23, and the second support shaft 2 is set on the first axle sleeve 52 and the second axle sleeve by when installation,
Axostylus axostyle 23 will be connected by screw to be fixed on rocker arm bracket body, accordingly, it is solid that locking connection axostylus axostyle 23 be opened up on rocking arm bridge 51
Determine the mounting opening of screw.
Based on the valve intake and exhaust rocker structure provided in above-described embodiment, present invention also offers a kind of diesel engine, its
Valve intake and exhaust rocker structure is provided with cylinder head, the valve intake and exhaust rocker structure which is equipped with is above-mentioned implementation
The valve intake and exhaust rocker structure provided in example.
Since the diesel engine employs the valve intake and exhaust rocker structure of above-described embodiment, thus the diesel engine by valve into
The beneficial effect that exhaust rocker arm structure is brought refer to above-described embodiment.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (9)
- A kind of 1. valve intake and exhaust rocker structure, it is characterised in that including intake rocker and exhaust rocker arm, and support it is described into The rocker arm bracket that gas rocking arm and the exhaust rocker arm are swung；The rocker arm bracket includes supporting the first support shaft of the intake rocker respectively, and second of the support exhaust rocker arm Support axis, first support shaft and second support shaft arranged for interval along the swaying direction of the intake rocker；The swinging end of the intake rocker is provided with the distal end rocking arm pressure head of driving distal end valve, the swinging end of the exhaust rocker arm It is provided with the distal end rocking arm pressure head of driving near-end valve.
- 2. valve intake and exhaust rocker structure according to claim 1, it is characterised in that the exhaust rocker arm includes being set up in Rocking arm bridge above the rocker arm bracket, positioned at the bottom of the rocking arm bridge, and the axial both ends with second support shaft respectively The first axle sleeve and the second axle sleeve coordinated is set with, the near-end rocking arm pressure head stretches out in the top of the rocking arm bridge.
- 3. valve intake and exhaust rocker structure according to claim 2, it is characterised in that the near-end rocking arm pressure head includes dividing The first near-end rocking arm pressure head and the second near-end rocking arm pressure head at the both ends in the rocking arm bridge support direction are not arranged at.
- 4. valve intake and exhaust rocker structure according to claim 3, it is characterised in that second support shaft includes difference The the first sub- support shaft and the second sub- support shaft coordinated with first axle sleeve and second axle sleeve suit.
- 5. valve intake and exhaust rocker structure according to claim 4, it is characterised in that first support shaft is positioned at described The middle part of first sub- support shaft and the second sub- support shaft, is provided with the intake rocker and first support shaft is set with The 3rd axle sleeve coordinated.
- 6. valve intake and exhaust rocker structure according to claim 4, it is characterised in that the intake rocker includes stretching out in Intake rocker bar between the rocking arm bridge and the rocker arm bracket, the swinging end of the intake rocker bar be extended with respectively with distal end The the first distal end rocking arm pressure head and the second distal end rocking arm pressure head of valve connection.
- 7. valve intake and exhaust rocker structure according to claim 6, it is characterised in that the push rod driving of the exhaust rocker arm Seat is arranged at one end that the rocking arm bridge supports direction along it；The push rod drive seat of the intake rocker is arranged at the air inlet and shakes The drive end of armed lever.
- 8. valve intake and exhaust rocker structure according to claim 5, it is characterised in that the rocker arm bracket includes rocker arm bracket sheet Body, first support shaft and second support shaft are installed in the front-end and back-end of the rocker arm bracket body respectively；Described Two support shafts connect the company of the described first sub- support shaft and the second sub- support shaft including affixed with the rocker arm bracket body Spindle bar.
- 9. a kind of diesel engine, valve intake and exhaust rocker structure is provided with its cylinder head, it is characterised in that the valve intake and exhaust Rocker structure is the valve intake and exhaust rocker structure as described in any one in claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711457120.4A CN107939467B (en) | 2017-12-28 | 2017-12-28 | Valve air inlet and outlet rocker arm structure and diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711457120.4A CN107939467B (en) | 2017-12-28 | 2017-12-28 | Valve air inlet and outlet rocker arm structure and diesel engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107939467A true CN107939467A (en) | 2018-04-20 |
| CN107939467B CN107939467B (en) | 2023-12-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711457120.4A Active CN107939467B (en) | 2017-12-28 | 2017-12-28 | Valve air inlet and outlet rocker arm structure and diesel engine |
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| CN (1) | CN107939467B (en) |
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