CN204984518U - Valve rocker installation mechanism and gasoline engine thereof - Google Patents
Valve rocker installation mechanism and gasoline engine thereof Download PDFInfo
- Publication number
- CN204984518U CN204984518U CN201520291307.1U CN201520291307U CN204984518U CN 204984518 U CN204984518 U CN 204984518U CN 201520291307 U CN201520291307 U CN 201520291307U CN 204984518 U CN204984518 U CN 204984518U
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- CN
- China
- Prior art keywords
- valve rocker
- inlet
- outlet door
- valve
- exhaust valve
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- Withdrawn - After Issue
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Abstract
The utility model discloses a valve rocker installation mechanism, including the valve rocker mount pad, be provided with on the valve rocker mount pad be used for that the installation advances, arranges valve rocker advance, arrange the valve rocker seat, it articulates through advancing, arrange the valve rocker axle to advance, arrange valve rocker advance, arrange on the valve rocker seat, advance, arrange that valve rocker is used for that the drive is corresponded, the contact surface of exhaust valve peak of the staff portion advancing of corresponding of perpendicular to, exhaust valve pole axis respectively, advance, arrange valve rocker seat shaft hole axis with the valve rocker mount pad has the contained angle with the faying face of cylinder end, it also has the contained angle to advance, arrange valve rocker axle shaft hole axis, it is in to advance, arrange valve rocker seat symmetrical arrangement on the valve rocker mount pad. The utility model provides a valve rocker installation mechanism and gasoline engine, power that can the high -efficient valve rocker of utilization transmitted reduces the wearing and tearing of contact surface, reduces valve actuating mechanism's work load.
Description
Technical field
The utility model relates to technical field of power equipment, particularly a kind of valve rocker mounting mechanism and petrol engine.
Background technique
Petrol engine is a kind of dynamic power machine used gasoline for the fuel, and is made up of parts such as cylinder, connecting rod, gas distribution system, oil supply system, lubrication system and ignition systems.General gasoline engines refers to except automobile-used, aviation are used, and has the reciprocating piston petrol engine of extensive use, and general power is within 20kW, and large flexible is very strong, and what have is highly professional, so general also referred to as miniature gasoline engine.The feature of general gasoline engines be structure simple, use easy and simple to handle, with low cost, be mainly used in agricultural equipment for plant protection, graden machine, small machine, generator set, building machinery, fire-fighting series facility, amusement kart, water-powered and model airplane power etc.
The gas distribution system of petrol engine is the necessary parts ensureing that petrol engine normally runs, generally comprise intake valve and exhaust valve that cylinder head is provided with, the opening and closing of intake valve and exhaust valve are controlled respectively by driving components such as rocker arm assemblies, and rocker arm assembly comprises valve rocker and corresponding pitman arm shaft and valve rocker seat.Valve rocker is hinged on valve rocker seat respectively by valve lever pin single-degree-of-freedom, and valve rocker one end coordinates with inlet and outlet door masthead portion respectively, and the other end coordinates with push rod, utilizes the transmission of camshaft to control valve opening and closing.Existing rocker arm assembly can not the power that transmits of the power arm of efficiency utilization valve rocker, and increase the wearing and tearing of surface of contact, cause existing inlet and outlet door assembly to be not closed completely, problem that inaccurate and action has some setbacks, distribution is inaccurate, waste fuel, lower efficiency, and affect the normal operation of petrol engine.
Model utility content
Based on the problems referred to above, the utility model object is to provide a kind of valve rocker mounting mechanism and petrol engine, can the power that transmits of efficiency utilization valve rocker, reduces the wearing and tearing of surface of contact, reduces the working load of valve actuating mechanism.
In order to solve the problems of the prior art, the technological scheme that the utility model provides is:
A kind of valve rocker mounting mechanism, comprise valve rocker fitting seat, described valve rocker fitting seat is provided with for being installed into, entering of exhaust valve rocker arm, exhaust valve rocker arm seat, described enter, exhaust valve rocker arm is through entering, exhaust valve rocking arm axle enters described in being hinged on, on exhaust valve rocker arm seat, described enter, exhaust valve rocker arm enters for driving correspondence, surface of contact the entering respectively perpendicular to correspondence at exhaust valve rod top, exhaust valve rod axis, described enter, the junction plane of exhaust valve rocker arm seat axis hole axis and described valve rocker fitting seat and cylinder head has angle, described enter, exhaust valve rocking arm axle axis hole axis also has angle, described enter, exhaust valve rocker arm seat is arranged symmetrically on described valve rocker fitting seat.
Further, described intake valve and exhaust valve are inclined valve, and inlet and outlet door rocking arm is also obliquely installed respectively with the surface of contact in inlet and outlet door masthead portion and its angle of inclination is equal with the angle of inclination of inlet and outlet door.
Further, described valve rocker fitting seat is provided with the installation axle hole for installing described inlet and outlet door rocker arm bracket, described inlet and outlet door rocker arm bracket comprises journal stirrup and inlet and outlet door pitman arm shaft axis hole, and described inlet and outlet door rocking arm is hinged on inlet and outlet door pitman arm shaft.
Further, on described journal stirrup and described inlet and outlet door pitman arm shaft, correspondence is provided with spacing hole, arranges fixed block and inlet and outlet door rocking arm single-degree-of-freedom be hinged on described inlet and outlet door rocker arm bracket in described spacing hole.
Further, the junction of described inlet and outlet door rocking arm and described journal stirrup is provided with the oilhole being through to described inlet and outlet door pitman arm shaft.
Further, described valve rocker fitting seat is provided with four mounting holes for being connected with petrol engine cylinder head, wherein two described mounting holes are arranged on the axis of symmetry of described inlet and outlet door rocking arm, and mounting hole described in two other is arranged on outside described inlet and outlet door rocking arm.
Further, described inlet and outlet door rocking arm back is provided with arc stiffening rib.
The utility model also provides a kind of petrol engine, and it comprises above-mentioned arbitrary described valve rocker mounting mechanism.
Compared with prior art, the utility model has the advantages that:
Adopt the technical solution of the utility model, inlet and outlet door is for driving the surface of contact at corresponding inlet and outlet valve stem top respectively perpendicular to the inlet and outlet valve stem axis of correspondence, can the power that transmits of efficiency utilization valve rocker, reduce the wearing and tearing of surface of contact, reduce the working load of valve actuating mechanism; The junction plane of rocker arm bracket axis hole axis and valve rocker fitting seat and cylinder head has angle, the mode by changing valve rocker structure can be avoided to ensure, and valve rocker drives surface of contact and engine valve stem axes normal, reduce the complex structure degree of valve rocker, make manufacturing processing technic simple, alleviate the weight of valve rocker simultaneously, reduce the timing axle working load driving valve rocker, ensure fluency and the accuracy of valve rocker work.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme of the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model;
Fig. 2 be the utility model and cylinder head body in conjunction with schematic diagram;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the structural representation that the utility model is arranged on cylinder head body;
Fig. 5 is side structure schematic diagram of the present utility model.
Wherein: 1, valve rocker fitting seat 11, inlet valve rocker 12, exhaust valve rocker arm 21, inlet valve rocker seat; 22, exhaust valve rocker arm seat; 31, inlet valve rocker axle; 32, exhaust valve rocking arm axle; 4, journal stirrup 41, spacing hole 42, tapped hole 43, tapped hole 5, mounting hole 61, inlet valve rocker axle axis hole 62, exhaust valve rocking arm axle axis hole 63, oilhole 7, fixed block 81, intake valve bar; 82, exhaust valve rod; 83, intake valve; 84, exhaust valve; 9, cylinder head.
Embodiment
Below in conjunction with specific embodiment, such scheme is described further.Should be understood that these embodiments are not limited to for illustration of the utility model limit scope of the present utility model.The implementation condition adopted in embodiment can do further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in normal experiment.
See Fig. 1-5, for the structural representation of the utility model embodiment, a kind of valve rocker mounting mechanism is provided, it comprises valve rocker fitting seat 1, valve rocker fitting seat 1 is provided with the inlet valve rocker seat 21 for being installed into valve rocker 11 and exhaust valve rocker arm 12 and exhaust valve rocker arm seat 22, inlet valve rocker 11 and exhaust valve rocker arm 12 are fixed on inlet valve rocker seat 21 and exhaust valve rocker arm seat 22 respectively by inlet valve rocker axle 31 and exhaust valve rocking arm axle 32, inlet valve rocker 11 and exhaust valve rocker arm 12 are for driving corresponding intake valve bar 81 mutually vertical with exhaust valve rod 82 axis with corresponding intake valve bar 81 respectively with the surface of contact at exhaust valve rod 82 top, the junction plane of inlet valve rocker seat 21 and exhaust valve rocker arm seat 22 axis hole axis and valve rocker fitting seat 1 and cylinder head 9 has angle, inlet valve rocker axle axis hole 61 and exhaust valve rocking arm axle axis hole 62 axis have angle simultaneously, intake valve rock shaft 21 and exhaust valve rocker arm seat 22 are arranged symmetrically on valve rocker fitting seat 1.Like this in running; the power vertical transmission of rocking arm is to valve stem top; make power obtain efficiency utilization; and reduce the wearing and tearing of surface of contact; ensure that inlet and outlet door assembly closes rear good airproof performance, degree of accuracy is high, action is smooth and easy; thus make distribution accurate, ensure the normal operation of petrol engine, with fuel saving, raise the efficiency; Do not need the structure changing valve rocker can ensure that valve rocker drives surface of contact and valve stem axes normal simultaneously, reduce the complex structure degree of valve rocker, make manufacturing processing technic simple, alleviate the weight of valve rocker simultaneously, reduce the timing axle working load driving valve rocker, ensure fluency and the accuracy of valve rocker work.
In order to optimize implementation result of the present utility model further, in this example, intake valve 83 and exhaust valve 84 are all set to inclined valve, inlet valve rocker 11 and exhaust valve rocker arm 12 are also obliquely installed respectively with intake valve bar 81 and exhaust valve rod 82, and its angle tilted is equal with the angle of inclination of intake valve 81 and exhaust valve 82 respectively, such structure can ensure that Valve Rocker Organization keeps Rocker Ratio in movement process, make the distribution moment accurately and timely, ensure that the normal operation of petrol engine.
Inlet valve rocker seat 21 and exhaust valve rocker arm seat 22 are bolted on the installation axle hole on valve rocker fitting seat 1, inlet valve rocker seat 21 comprises journal stirrup 4 and inlet valve rocker axle axis hole 61, exhaust valve rocker arm bracket 22 comprises journal stirrup 4 and exhaust valve rocking arm axle axis hole 62, and inlet valve rocker 11 and exhaust valve rocker arm 12 are hinged on inlet valve rocker axle 31 and exhaust valve rocking arm axle 32 respectively.
At journal stirrup 4, inlet valve rocker axle 31 and exhaust valve rocking arm axle 32 arrange corresponding spacing hole 41, inlet valve rocker 11 and exhaust valve rocker arm 12 single-degree-of-freedom are articulated with on inlet valve rocker seat 21 and exhaust valve rocker arm seat 22 through the spacing hole 41 on journal stirrup 4 and the tapped hole 42 on inlet valve rocker axle 31 and the tapped hole 43 on exhaust valve rocking arm axle 32 by fixed block 7, only there is the rotation of valve rocker around pitman arm shaft in the course of the work in Valve Rocker Organization, other parts are fixed by the fastening piece of valve rocker, valve rocker and pitman arm shaft adopt steel part forging to form, valve rocker seat adopts ironcasting casting to form, the basis of proof strength reduces the requirement to material, reduce costs.
In order to reduce the frictional force of rocker arm body in movement process further, ensure the flexibility of rocker motion, at inlet valve rocker 11, exhaust valve rocker arm 12, the junction point of journal stirrup 4 is provided with the oilhole 63 being through to inlet valve rocker axle 31 and exhaust valve rocking arm axle 32, lubricant oil is lubricated exist the part of relative movement.
In order to make rocking arm stressed more reasonable, the intensity strengthening rocking arm alleviates its weight simultaneously, arranges the stiffening rib of arc at the back of inlet valve rocker 11 and exhaust valve rocker arm 12.
In this example, valve rocker fitting seat 1 is provided with four mounting holes 5 for being connected with petrol engine cylinder head 9, wherein two mounting holes 5 are distributed on the axis of symmetry of inlet valve rocker 11 and exhaust valve rocker arm 12, two other mounting hole 5 is arranged on the outside of inlet valve rocker 11 and exhaust valve rocker arm 12, make to form triangle fastening structure, reasonable stress between valve rocker fitting seat 1 and cylinder head 9, add the join strength with cylinder head parts, reduce thermal distortion, reduce noise.
The utility model also relates to a kind of petrol engine, and it comprises the valve rocker mounting mechanism in the utility model embodiment, and this petrol engine is applied to motorcycle or universal machine, and universal machine comprises pump, blower fan, compressor, subtracts variable-speed motor, generator etc.
Above-mentioned example, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art person can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalent transformations of doing according to the utility model Spirit Essence or modification, all should be encompassed within protection domain of the present utility model.
Claims (8)
1. a valve rocker mounting mechanism, comprises valve rocker fitting seat (1), and described valve rocker fitting seat (1) is provided with for being installed into, exhaust valve rocker arm (11, 12) enter, exhaust valve rocker arm seat (21, 22) enter, exhaust valve rocker arm (11, 12) through entering, exhaust valve rocking arm axle (31, 32) be hinged on described in enter, exhaust valve rocker arm seat (21, 22), on, it is characterized in that: described in enter, exhaust valve rocker arm (11, 12) for driving correspondence to enter, exhaust valve rod (81, 82) surface of contact the entering respectively perpendicular to correspondence at top, exhaust valve rod (81, 82) axis, described in enter, exhaust valve rocker arm seat axis hole (61, 62) axis and described valve rocker fitting seat (1) have angle with the junction plane of cylinder head (9), described in enter, exhaust valve rocking arm axle axis hole (61, 62) axis has angle, described in enter, exhaust valve rocker arm seat (21, 22) be arranged symmetrically on described valve rocker fitting seat (1).
2. valve rocker mounting mechanism according to claim 1, it is characterized in that: intake valve (83) and exhaust valve (84) are inclined valve, inlet and outlet door rocking arm (11,12) is also obliquely installed respectively with the surface of contact at inlet and outlet door bar (81,82) top and its angle of inclination is equal with the angle of inclination of inlet and outlet door (83,84).
3. valve rocker mounting mechanism according to claim 1, it is characterized in that: described valve rocker fitting seat (1) is provided with the installation axle hole for installing described inlet and outlet door rocker arm bracket (21,22), described inlet and outlet door rocker arm bracket (21,22) comprises journal stirrup (4) and inlet and outlet door pitman arm shaft axis hole (61,62), and described inlet and outlet door rocking arm (11,12) is hinged on inlet and outlet door pitman arm shaft (31,32).
4. valve rocker mounting mechanism according to claim 3, it is characterized in that: described journal stirrup (4) and the upper correspondence of described inlet and outlet door pitman arm shaft (31,32) are provided with spacing hole (41), arrange fixed block (7) and inlet and outlet door rocking arm (11,12) single-degree-of-freedom be hinged on described inlet and outlet door rocker arm bracket (21,22) in described spacing hole (41).
5. valve rocker mounting mechanism according to claim 1, is characterized in that: described inlet and outlet door rocking arm (11,12) is provided with the junction of journal stirrup (4) oilhole (63) being through to described inlet and outlet door pitman arm shaft.
6. valve rocker mounting mechanism according to claim 1, it is characterized in that: described valve rocker fitting seat (1) is provided with four mounting holes (5) for being connected with petrol engine cylinder head (9), wherein two described mounting holes (5) are arranged on the axis of symmetry of described inlet and outlet door rocking arm (11,12), and mounting hole described in two other (5) is arranged on described inlet and outlet door rocking arm (11,12) outside.
7. valve rocker mounting mechanism according to claim 1, is characterized in that: described inlet and outlet door rocking arm (11,12) back is provided with arc stiffening rib.
8. a petrol engine, is characterized in that: comprise the arbitrary described valve rocker mounting mechanism of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520291307.1U CN204984518U (en) | 2015-05-07 | 2015-05-07 | Valve rocker installation mechanism and gasoline engine thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520291307.1U CN204984518U (en) | 2015-05-07 | 2015-05-07 | Valve rocker installation mechanism and gasoline engine thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204984518U true CN204984518U (en) | 2016-01-20 |
Family
ID=55118897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520291307.1U Withdrawn - After Issue CN204984518U (en) | 2015-05-07 | 2015-05-07 | Valve rocker installation mechanism and gasoline engine thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204984518U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832237A (en) * | 2015-05-07 | 2015-08-12 | 苏州市双马机电有限公司 | Valve rocker mounting mechanism and gasoline engine thereof |
-
2015
- 2015-05-07 CN CN201520291307.1U patent/CN204984518U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832237A (en) * | 2015-05-07 | 2015-08-12 | 苏州市双马机电有限公司 | Valve rocker mounting mechanism and gasoline engine thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160120 Effective date of abandoning: 20180223 |