CN107676139A - A kind of valve actuating mechanism of automobile engine - Google Patents
A kind of valve actuating mechanism of automobile engine Download PDFInfo
- Publication number
- CN107676139A CN107676139A CN201710911354.5A CN201710911354A CN107676139A CN 107676139 A CN107676139 A CN 107676139A CN 201710911354 A CN201710911354 A CN 201710911354A CN 107676139 A CN107676139 A CN 107676139A
- Authority
- CN
- China
- Prior art keywords
- valve
- spring
- actuating mechanism
- automobile engine
- rocking arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- F01L1/02—Valve drive
- F01L1/022—Chain drive
-
- 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
- F01L1/053—Camshafts overhead type
-
- 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
-
- 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
- F01L1/185—Overhead end-pivot rocking arms
-
- 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
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
- F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
- F01L1/245—Hydraulic tappets
- F01L1/25—Hydraulic tappets between cam and valve stem
-
- 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
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/10—Connecting springs to valve members
-
- 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
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/20—Shapes or constructions of valve members, not provided for in preceding subgroups of this group
-
- 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
- F01L2250/00—Camshaft drives characterised by their transmission means
- F01L2250/02—Camshaft drives characterised by their transmission means the camshaft being driven by chains
-
- 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
- F01L2810/00—Arrangements solving specific problems in relation with valve gears
- F01L2810/04—Reducing noise
Abstract
The invention discloses a kind of valve actuating mechanism of automobile engine,Including valve group and valve transmission group,Valve group includes valve and valve spring,One end of valve spring is connected with spring pedestal,Valve spring has two,And valve spring is symmetrical with the center of spring pedestal,Spring pedestal is provided with spring carrier arm,Two valve spring are intersecting and two valve spring it is oppositely oriented,The intersecting size of valve spring is the 1/2 of whole valve spring,Cavity valve guide bushing body is socketed with spring pedestal,And together with valve spins with spring pedestal,Valve train group includes rocking arm,Tappet and protruding shaft wheel,Rocking arm is connected by adjusting screw with tappet,Camshaft is provided with some equally distributed cams,One end of protruding shaft wheel is connected with protruding shaft form of gear tooth wheel,Tappet is arranged under cam,Rocking arm is connected with spring pedestal,The structure of valve actuating mechanism is simple and compact-sized in the present invention,Reduce the processing technology difficulty between parts.
Description
Technical field
The present invention relates to technical field of automobile engine, specially a kind of valve actuating mechanism of automobile engine.
Background technology
In the part of automobile engine, valve actuating mechanism is one of two important mechanisms for forming engine.In vapour
During the sparking of car, engine can be determined according to the specific works circulation in automobile engine cylinder and ignition order
Start.Can with time opening and the inlet and exhaust valve of each cylinder of closing automobile engine, to allow automobile engine to suck air in time,
Waste gas is fully excluded.Important leverage can also be provided during the compression and acting of engine, be in automobile engine
Gas burning provides a confined space.So the valve actuating mechanism of automobile engine is each cylinder fuel work by combustion of engine
Important guarantee.
And current automobile engine air distributing device is complicated, cause the spatial volume of occupancy big, and poor practicability.
The content of the invention
In order to overcome the shortcomings of prior art, the present invention provides a kind of valve actuating mechanism of automobile engine, the present invention
The structure of middle valve actuating mechanism is simple and compact-sized, can reduce the space-consuming area of valve actuating mechanism, reduce parts it
Between processing technology difficulty.
The technical solution adopted for the present invention to solve the technical problems is：A kind of valve actuating mechanism of automobile engine, including
Valve group and valve transmission group, the valve group include valve and valve spring, and one end of the valve spring is connected with spring
Base, the valve spring has two, and the valve spring is symmetrical with the center of spring pedestal, the spring
Base is provided with spring carrier arm, and two valve spring intersect and oppositely oriented, the gas of two valve spring
The intersecting size of door spring is the 1/2 of whole valve spring, and cavity valve guide bushing body, the gas are socketed with the spring pedestal
Door is arranged in cavity valve guide bushing body, and together with one end of the valve spins with spring pedestal, the valve train
Group includes rocking arm, tappet and protruding shaft wheel, and the tappet is connected by adjusting screw with rocking arm, and the camshaft is provided with some equal
The cam of even distribution, one end of the protruding shaft wheel are connected with protruding shaft form of gear tooth wheel, and the tappet is arranged under cam, the rocking arm
It is connected with spring pedestal.
As a kind of preferable technical scheme of the present invention, the head of the valve is flat roof type, and the head portion that is set up
There is valve retainer, and valve cone angle is formed between the valve retainer and head portion that, the valve cone angle is head portion that
Inclined plane and head portion that horizontal plane between angle, and the scope of valve cone angle be 30 ° -45 °.
As a kind of preferable technical scheme of the present invention, the adjusting screw is arranged on the place that rocking arm is connected with tappet,
And matched bolt is provided with adjusting screw.
As a kind of preferable technical scheme of the present invention, abrasion-proof rubber cushion, and the cam are equipped with the cam
The taper that is combined for circular and parabola of profile, the cam direction is indefinite to be arranged on camshaft.
As a kind of preferable technical scheme of the present invention, the tappet is hydraulic tappet.
As a kind of preferable technical scheme of the present invention, the camshaft toothed wheel is connected to bent axle tooth form by chain
Wheel.
As a kind of preferable technical scheme of the present invention, the rocking arm is provided with swing arm sleeve, and with spring pedestal
Build-up wear-resistant alloy is provided with the top of the rocking arm of contact.
As a kind of preferable technical scheme of the present invention, the spring pedestal is provided with two locking plates.
Compared with prior art, the beneficial effects of the invention are as follows：The structure of valve actuating mechanism is simple in the present invention and structure
It is compact, the space-consuming area of valve actuating mechanism can be reduced, reduce the processing technology difficulty between parts, and can be according to convex
Wheel drives the motion of tappet and rocking arm, and the inlet and exhaust valve of cylinder can be opened and closed in the range of certain time, so that
Air is able to timely enter cylinder, and waste gas is able to discharge from cylinder in time.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the valve group configuration schematic diagram of the present invention；
Fig. 3 is the adjusting screw structural representation of the present invention；
Fig. 4 is the rocker structure schematic diagram of the present invention.
In figure：1- valve groups；2- valve train groups；3- valves；4- valve spring；5- spring pedestals；6- spring carrier arms；7-
Cavity valve guide bushing body；8- rocking arms；9- tappets；10- protruding shaft wheels；11- adjusting screws；12- cams；13- camshaft toothed wheels；
14- valve cone angles；15- bolts；16- abrasion-proof rubber cushions；17- chains；18- bent axle toothed wheels；19- swing arm sleeves；20- locking plates.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The explanation of following embodiment is refer to the attached drawing, can be to the specific embodiment implemented to the example present invention.
The direction and position term that the present invention is previously mentioned, for example, " on ", " in ", " under ", "front", "rear", "left", "right", " interior ", "
Outside ", " side " etc., only it is direction and position with reference to annexed drawings.Therefore, the direction and position term used is to illustrate
And understand the present invention, and it is not used to the limitation present invention.
Embodiment：
As shown in Figures 1 to 4, the invention provides a kind of valve actuating mechanism of automobile engine, including valve group 1 and valve
Transmission group 2, the valve group 1 include valve 3 and valve spring 4, and one end of the valve spring 4 is connected with spring pedestal 5, institute
State spring pedestal 5 and be provided with two locking plates 20, the valve spring 4 there are two, and the valve spring 4 is with spring pedestal 5
Center it is symmetrical, the spring pedestal 5 is provided with spring carrier arm 6, and two valve spring 4 are intersecting and two
The valve spring 4 it is oppositely oriented, the intersecting size of the valve spring 4 is the 1/2 of whole valve spring 4, the spring
Base 5 is internally threaded, and cavity valve guide bushing body 7 is socketed with the spring pedestal 5, and the valve 3 is arranged on cavity gas
In the door body of conduit 7, and together with one end of the valve 3 spins with spring pedestal 5.
The valve train group 2 includes rocking arm 8, tappet 9 and protruding shaft wheel 10, and the tappet 9 is by adjusting screw 11 with shaking
Arm 8 is connected, and the tappet 9 is hydraulic tappet, and hydraulic tappet eliminates the gap of valve actuating mechanism, and the impact for reducing each part carries
Lotus and noise, performance during high engine speeds being improved, the adjusting screw 11 is arranged on the place that rocking arm 8 is connected with tappet 9,
And matched bolt 15 is provided with adjusting screw 11, the camshaft 10 is provided with some equally distributed cams
12, abrasion-proof rubber cushion 16, and the cone that the profile of the cam 12 combines for circular and parabola are equipped with the cam 12
Shape, the direction of cam 12 is indefinite to be arranged on camshaft 10, and one end of the protruding shaft wheel 10 is connected with protruding shaft form of gear tooth wheel
13, the camshaft toothed wheel 13 is connected with bent axle toothed wheel 18 by chain 17, and the tappet 9 is arranged under cam 12, institute
Rocking arm 8 is stated with spring pedestal 5 to be connected.
Preferably, the head of the valve 3 is flat roof type, and the head of the valve 3 has additional valve retainer, and
Form valve cone angle 14 between the head of valve retainer and valve 3, the valve cone angle 14 for the head of valve 3 inclined plane with
Angle between the head level of valve 3, and the scope of valve cone angle 14 is 30 ° -45 °, to obtain 3, larger valve
Resultant pressure, sealing and thermal conductivity are improved, and have preferable positioning action when valve 3 is taken a seat, while also avoid air-flow from turning
Bend through big and reduce flow velocity.
Preferably, the rocking arm 8 is provided with swing arm sleeve 19, and is pushed up in the rocking arm 8 contacted with spring pedestal 5
Portion is provided with build-up wear-resistant alloy, increases the wearability of rocking arm 8, extends the service life of rocking arm 8.
In summary, the main characteristic of the invention lies in that：
The structure of valve actuating mechanism is simple and compact-sized in the present invention, can reduce the space-consuming face of valve actuating mechanism
Product, the processing technology difficulty between parts is reduced, and can be according to the motion of cam driven tappet and rocking arm, can be certain
The inlet and exhaust valve of cylinder is opened and closed in time range, so that air is able to timely enter cylinder, waste gas is able in time
Discharged from cylinder.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Claims (8)
- A kind of 1. valve actuating mechanism of automobile engine, it is characterised in that：Including valve group (1) and valve transmission group (2), the gas Door group (1) includes valve (3) and valve spring (4), and one end of the valve spring (4) is connected with spring pedestal (5), the gas Door spring (4) has two, and the valve spring (4) is symmetrical with the center of spring pedestal (5), the spring bottom Seat (5) is provided with spring carrier arm (6), and two valve spring (4) intersect and the rotation direction phase of two valve spring (4) Instead, the intersecting size of the valve spring (4) is the 1/2 of whole valve spring (4), and socket is free on the spring pedestal (5) Chamber valve guide bushing body (7), the valve (3) be arranged on cavity valve guide bushing (7) in vivo, and one end of the valve (3) with Spring pedestal (5) spins together, and the valve train group (2) includes rocking arm (8), tappet (9) and protruding shaft wheel (10), described to endure Post (9) is connected by adjusting screw (11) with rocking arm (8), and the camshaft (10) is provided with some equally distributed cams (12), one end of the protruding shaft wheel (10) is connected with camshaft toothed wheel (13), and the tappet (9) is arranged under cam (12), The rocking arm (8) is connected with spring pedestal (5).
- A kind of 2. valve actuating mechanism of automobile engine according to claim 1, it is characterised in that：The head of the valve (3) Portion is flat roof type, and valve (3) head has additional valve retainer, and shape between the valve retainer and valve (3) head Into valve cone angle (14), the valve cone angle (14) is between the inclined plane and valve (3) head level on valve (3) head Angle, and the scope of valve cone angle (14) is 30 ° -45 °.
- A kind of 3. valve actuating mechanism of automobile engine according to claim 1, it is characterised in that：The adjusting screw (11) Installed in the place that rocking arm (8) is connected with tappet (9), and matched bolt (15) is provided with adjusting screw (11).
- A kind of 4. valve actuating mechanism of automobile engine according to claim 1, it is characterised in that：On the cam (12) Provided with abrasion-proof rubber cushion (16), and the taper that the profile of the cam (12) combines for circular and parabola, the cam (12) direction is indefinite is arranged on camshaft (10).
- A kind of 5. valve actuating mechanism of automobile engine according to claim 1, it is characterised in that：The tappet (9) is liquid Support post.
- A kind of 6. valve actuating mechanism of automobile engine according to claim 5, it is characterised in that：The camshaft toothed wheel (13) bent axle toothed wheel (18) is connected with by chain (17).
- A kind of 7. valve actuating mechanism of automobile engine according to claim 1, it is characterised in that：Set on the rocking arm (8) There is swing arm sleeve (19), and build-up wear-resistant alloy is provided with the top of the rocking arm (8) contacted with spring pedestal (5).
- A kind of 8. valve actuating mechanism of automobile engine according to claim 1, it is characterised in that：The spring pedestal (5) It is provided with two locking plates (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710911354.5A CN107676139A (en) | 2017-09-29 | 2017-09-29 | A kind of valve actuating mechanism of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710911354.5A CN107676139A (en) | 2017-09-29 | 2017-09-29 | A kind of valve actuating mechanism of automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107676139A true CN107676139A (en) | 2018-02-09 |
Family
ID=61137949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710911354.5A Pending CN107676139A (en) | 2017-09-29 | 2017-09-29 | A kind of valve actuating mechanism of automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107676139A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56141030A (en) * | 1980-04-05 | 1981-11-04 | Nissan Motor Co Ltd | Diesel engine |
| CN2856429Y (en) * | 2005-10-19 | 2007-01-10 | 陈恳 | General multiple air gates admission gear of small I.C.engine |
| CN102383888A (en) * | 2011-10-26 | 2012-03-21 | 奇瑞汽车股份有限公司 | Air valve control mechanism of push-rod-type engine |
| CN102889102A (en) * | 2011-07-21 | 2013-01-23 | 李立平 | Internal-combustion engine and distribution mechanism thereof |
| CN203906029U (en) * | 2014-05-29 | 2014-10-29 | 北汽福田汽车股份有限公司 | Valve mechanism of engine, engine and vehicle |
| CN204877572U (en) * | 2015-09-06 | 2015-12-16 | 泉州智信专利技术开发有限公司 | Put overhead valve valve timing mechanism of camshaft down |
| CN205297668U (en) * | 2016-01-20 | 2016-06-08 | 郭金锋 | Car internal combustion engine valve |
| CN106640258A (en) * | 2016-12-28 | 2017-05-10 | 潍柴动力股份有限公司 | Engine compression release type braking system and engine |
-
2017
- 2017-09-29 CN CN201710911354.5A patent/CN107676139A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56141030A (en) * | 1980-04-05 | 1981-11-04 | Nissan Motor Co Ltd | Diesel engine |
| CN2856429Y (en) * | 2005-10-19 | 2007-01-10 | 陈恳 | General multiple air gates admission gear of small I.C.engine |
| CN102889102A (en) * | 2011-07-21 | 2013-01-23 | 李立平 | Internal-combustion engine and distribution mechanism thereof |
| CN102383888A (en) * | 2011-10-26 | 2012-03-21 | 奇瑞汽车股份有限公司 | Air valve control mechanism of push-rod-type engine |
| CN203906029U (en) * | 2014-05-29 | 2014-10-29 | 北汽福田汽车股份有限公司 | Valve mechanism of engine, engine and vehicle |
| CN204877572U (en) * | 2015-09-06 | 2015-12-16 | 泉州智信专利技术开发有限公司 | Put overhead valve valve timing mechanism of camshaft down |
| CN205297668U (en) * | 2016-01-20 | 2016-06-08 | 郭金锋 | Car internal combustion engine valve |
| CN106640258A (en) * | 2016-12-28 | 2017-05-10 | 潍柴动力股份有限公司 | Engine compression release type braking system and engine |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180209 |