CN208749419U - Valve rocker structure - Google Patents
Valve rocker structure Download PDFInfo
- Publication number
- CN208749419U CN208749419U CN201821399767.6U CN201821399767U CN208749419U CN 208749419 U CN208749419 U CN 208749419U CN 201821399767 U CN201821399767 U CN 201821399767U CN 208749419 U CN208749419 U CN 208749419U
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- CN
- China
- Prior art keywords
- connecting rod
- idler wheel
- rocking lever
- valve rocker
- rocker structure
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Abstract
The utility model provides a kind of valve rocker structure, is related to technical field of engines, solves the technical problem of the air valve structure complexity of lift continuous changeable existing in the prior art.The device includes the first idler wheel, first connecting rod, constriction device, limit shaft, second connecting rod and rocking lever；One end of the first connecting rod and one end of the second connecting rod are hinged by the limit shaft, the limit shaft is fixedly connected with automobile engine, first idler wheel is rotatably connected on the other end of the first connecting rod, and the other end of the second connecting rod is flexibly connected for driving the rocking lever dynamic with the rocking lever；The both ends of the constriction device are hinged with the first connecting rod and second connecting rod respectively；First idler wheel is matched with the camshaft in automobile engine.The utility model realizes the continuous variable of valve stroke for automobile engine.
Description
Technical field
The utility model relates to technical field of engines, more particularly, to a kind of valve rocker structure.
Background technique
Rocker arm in automobile is actually a double-arm lever, and the power for transmitting push rod changes direction, acts on gas
Door rod end is to push valve open.Rocker arm makes one end rise or decline under the action of the pivoting leaf of camshaft, and the other end will be made
For valve rod.When the pivoting leaf of camshaft rises the lever arm of outside, the power that inside generates be will bear against on valve rod, to beat
Open application valve.When the armed lever of outside allows to return due to the effect of camshaft, internal armed lever rises, and allows valve spring
Compress closing function valve.
Applicants have discovered that at least there is following technical problem in the prior art:
The valve lift amount of traditional petrol engine is fixed and invariable, and the adjusting of engine load passes through control solar term
Door aperture realizes, but this control mode makes engine there is biggish pumping loss；The changeable air valve of the prior art
Lift device is mostly to be classified to adjust, and structure is complicated mostly for the valve of related lift continuous changeable.
Summary of the invention
The purpose of this utility model is to provide a kind of valve rocker structures, are connected with solving lift existing in the prior art
Continue the technical problem of variable air valve structure complexity.Optimal technical scheme institute in many technical solutions provided by the utility model
The many technical effects elaboration as detailed below that can be generated.
To achieve the above object, the utility model provides following technical scheme:
Valve rocker structure provided by the utility model, including the first idler wheel, first connecting rod, constriction device, limit shaft,
Two connecting rods and rocking lever；One end of first connecting rod and one end of second connecting rod are hinged by limit shaft, limit shaft and vapour
Car engine is fixedly connected, and the first idler wheel is rotatably connected on the other end of first connecting rod, the other end and rocking lever of second connecting rod
It is flexibly connected for driving rocking lever to swing；The both ends of constriction device are hinged with first connecting rod and second connecting rod respectively, and adjustment is received
The length of compression apparatus can change the size of angle between first connecting rod and second connecting rod；On first idler wheel and automobile engine
Camshaft match.
Preferably, constriction device is hydraulic cylinder.
Preferably, second connecting rod and rocking lever junction are additionally provided with the second idler wheel with second connecting rod rotation connection, shake
The track matched with the second idler wheel is additionally provided on armed lever.
Preferably, second connecting rod and rocking lever junction are additionally provided with the sliding block hinged with second connecting rod, go back on rocking lever
It is provided with the groove matched with sliding block.
Preferably, the section of sliding block is in I-shaped, and the protrusion to match with sliding block is provided in groove.
Preferably, through-hole is additionally provided in the middle part of sliding block, and inside grooves are provided with the shaft to match with through-hole.
Preferably, hydraulic tappet is additionally provided on rocking lever.
Preferably, the mid diameter of the first idler wheel is greater than the diameter at both ends, and the periphery of the first idler wheel is using camber line as base
The surfaces of revolution of line, the diameter of camber line are 2840mm；The cam being in contact on camshaft with the first idler wheel is provided with and the first idler wheel
The concave groove to match.
Preferably, lubricant passage way is additionally provided on limit shaft, the hinged place of limit shaft and first connecting rod and second connecting rod is equal
It is provided with the through-hole communicated with lubricant passage way.
Preferably, first connecting rod, second connecting rod and rocking lever are all made of alloy steel material 12CRMO and forge.
Valve rocker structure provided by the utility model, including the first idler wheel, first connecting rod, constriction device, limit shaft,
Two connecting rods and rocking lever；Engine cam drives rocking lever to swing by first connecting rod and the sub-assembly of the second connecting rod,
Constriction device being capable of corner dimension between stepless change first connecting rod and second connecting rod；Connected by crossing first connecting rod and second
The continuous variable of valve stroke is realized in the stepless variation of the sub-assembly of extension bar.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the schematic side view of valve rocker structure provided by the utility model.
1, first idler wheel in figure；2, first connecting rod；3, constriction device；4, limit shaft；5, second connecting rod；6, the second idler wheel；
7, rocking lever；8, hydraulic tappet；9, cam.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
As shown in Figure 1, the utility model provides a kind of valve rocker structure, including the first idler wheel 1, first connecting rod 2, receipts
Compression apparatus 3, limit shaft 4, second connecting rod 5 and rocking lever 7；One end of first connecting rod 2 and one end of second connecting rod 5 pass through limit shaft
4 is hinged, and limit shaft 4 is fixedly connected with automobile engine, and the first idler wheel 1 is rotatably connected on the other end of first connecting rod 2,
The other end of second connecting rod 5 is flexibly connected for driving rocking lever 7 to swing with rocking lever 7；The both ends of constriction device 3 are respectively with
One connecting rod 2 and second connecting rod 5 are hinged, adjust the length of constriction device 3, can change between first connecting rod 2 and second connecting rod 5
The size of angle；First idler wheel 1 is matched with the camshaft in automobile engine.First connecting rod 2 and second connecting rod 5 are used as rocker arm
The transfer part that bar 7 is swung, when angle between the two changes, valve stroke can change therewith, realize valve stroke
It is continuously adjustable.
As a kind of optional embodiment of the utility model, constriction device 3 is hydraulic cylinder, with the excellent of affected simplicity
Hydraulic cylinder elongation or contracting can be operated by control circuit in point；Constriction device 3 can also be screwed pipe, have framework simple
Advantage, by the length variation adjustment entire length for adjusting joining region between screwed pipe.
As a kind of optional embodiment of the utility model, second connecting rod 5 and 7 junction of rocking lever are additionally provided with and the
Second idler wheel 6 of two connecting rods 5 rotation connection, is additionally provided with the track matched with the second idler wheel 6, second connecting rod on rocking lever 7
Frictional resistance can be effectively reduced using rolling friction between 5 and rocking lever 7.
As a kind of optional embodiment of the utility model, second connecting rod 5 and 7 junction of rocking lever are additionally provided with and the
The hinged sliding block of two connecting rods 5, the groove matched with sliding block is additionally provided on rocking lever 7, and groove is relatively close in conjunction with sliding block
So that connection relationship is more stable between second connecting rod 5 and rocking lever 7.
As a kind of optional embodiment of the utility model, the section of sliding block in I-shaped, and be provided in groove with
The protrusion that sliding block matches, raised extending direction is identical as the extending direction of groove, and sliding block passes through between groove internal projection
Clamping so that Anti-extrusion performance more preferably.
Preferably, through-hole is additionally provided in the middle part of sliding block, and inside grooves are provided with the shaft to match with through-hole, shaft
Extending direction it is consistent with the extending direction of groove, the limit by shaft to sliding block, it can be ensured that second connecting rod 5 is with respect to rocker arm
The running track of bar 7 is run along planned orbit.Circle or rectangular can be used in the shape of slider throughbores, is transported using circular through hole sliding block
Capable is more smooth, using the more stable of square through hole sliding block operation.
As a kind of optional embodiment of the utility model, hydraulic tappet 8, hydraulic tappet 8 are additionally provided on rocking lever 7
Itself has fixed elastic strength, can be realized the self-service cover of valve in a certain range, can be used for compensating valve folding
Degree.
As a kind of optional embodiment of the utility model, the mid diameter of the first idler wheel 1 is greater than the diameter at both ends, the
The periphery of one idler wheel 1 is the surfaces of revolution using camber line as baseline, and the diameter of camber line is 2840mm；On camshaft with the first idler wheel 1
The cam 9 being in contact is provided with the concave groove to match with the first idler wheel 1.First idler wheel 1 is rotation in use, so the
The contact point of one idler wheel 1 and cam 9 is changing always, and the two contact is more synchronous, so that abrasion between the two is smaller, and generate
Noise is lower.
As a kind of optional embodiment of the utility model, be additionally provided with lubricant passage way on limit shaft 4, limit shaft 4 with
The hinged place of first connecting rod 2 and second connecting rod 5 is provided with the through-hole communicated with lubricant passage way, can ensure 2 He of first connecting rod
Second connecting rod 5 have good operating condition so that valve rocker structure mentioned by the utility model have it is stronger resist it is tired
Labor intensity meets the long-distance running demand of vehicle.
As a kind of optional embodiment of the utility model, first connecting rod 2, second connecting rod 5 and rocking lever 7 are all made of conjunction
Golden Steel material 12CRMO is forged, so that each component intensity with higher under lighter self weight state.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (10)
1. a kind of valve rocker structure, which is characterized in that including the first idler wheel (1), first connecting rod (2), constriction device (3), limit
Position axis (4), second connecting rod (5) and rocking lever (7)；
One end of the first connecting rod (2) and one end of the second connecting rod (5) are hinged by the limit shaft (4),
The limit shaft (4) is fixedly connected with automobile engine, and first idler wheel (1) is rotatably connected on the first connecting rod (2)
The other end, the other end of the second connecting rod (5) are flexibly connected for driving the rocking lever (7) to put with the rocking lever (7)
It is dynamic；
The both ends of the constriction device (3) respectively with the first connecting rod (2) and second connecting rod (5) hingedly, adjust the contraction
The length of device (3) can change the size of angle between the first connecting rod (2) and second connecting rod (5)；
First idler wheel (1) matches with the camshaft in automobile engine.
2. valve rocker structure according to claim 1, which is characterized in that the constriction device (3) is hydraulic cylinder.
3. valve rocker structure according to claim 1, which is characterized in that the second connecting rod (5) and the rocking lever
(7) junction is additionally provided with the second idler wheel (6) with the second connecting rod (5) rotation connection, also sets up on the rocking lever (7)
There is the track matched with second idler wheel (6).
4. according to valve rocker structure described in claim 1, which is characterized in that the second connecting rod (5) and the rocking lever (7)
Junction is additionally provided with the sliding block hinged with the second connecting rod (5), is additionally provided on the rocking lever (7) and the sliding block phase
The groove of cooperation.
5. according to valve rocker structure as claimed in claim 4, which is characterized in that the section of the sliding block is in I-shaped and described
The protrusion to match with the sliding block is provided in groove.
6. according to valve rocker structure as claimed in claim 4, which is characterized in that through-hole is additionally provided in the middle part of the sliding block, and
The inside grooves are provided with the shaft to match with the through-hole.
7. according to valve rocker structure described in claim 1, which is characterized in that be additionally provided with hydraulic endure on the rocking lever (7)
Column (8).
8. according to valve rocker structure described in claim 1, which is characterized in that the mid diameter of first idler wheel (1) is greater than
The diameter at both ends, the periphery of first idler wheel (1) are the surfacess of revolution using camber line as baseline, and the diameter of the camber line is
2840mm；The cam (9) being in contact on the camshaft with first idler wheel (1) is provided with and the first idler wheel (1) phase
Matched concave groove.
9. according to valve rocker structure described in claim 1, which is characterized in that be additionally provided with lubricating oil on the limit shaft (4)
Road, the limit shaft (4) and the first connecting rod (2) and the hinged place of the second connecting rod (5) are provided with and the lubrication
The through-hole that oil circuit communicates.
10. according to valve rocker structure described in claim 1, which is characterized in that the first connecting rod (2), second connecting rod (5) and
Rocking lever (7) is all made of alloy steel material 12CRMO and forges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821399767.6U CN208749419U (en) | 2018-08-28 | 2018-08-28 | Valve rocker structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821399767.6U CN208749419U (en) | 2018-08-28 | 2018-08-28 | Valve rocker structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208749419U true CN208749419U (en) | 2019-04-16 |
Family
ID=66082343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821399767.6U Active CN208749419U (en) | 2018-08-28 | 2018-08-28 | Valve rocker structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208749419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110344908A (en) * | 2019-07-12 | 2019-10-18 | 龙口中宇汽车风扇离合器有限公司 | A kind of hydraulic valve mechanism and internal combustion engine for realizing that valve opening number is variable |
-
2018
- 2018-08-28 CN CN201821399767.6U patent/CN208749419U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110344908A (en) * | 2019-07-12 | 2019-10-18 | 龙口中宇汽车风扇离合器有限公司 | A kind of hydraulic valve mechanism and internal combustion engine for realizing that valve opening number is variable |
| CN110344908B (en) * | 2019-07-12 | 2020-04-03 | 龙口中宇汽车风扇离合器有限公司 | Hydraulic valve mechanism capable of realizing variable valve opening times and internal combustion engine |
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