CN203925638U - The eccentric rocker arm assembly of four-valve diesel engine and inlet and exhaust valve thereof - Google Patents
The eccentric rocker arm assembly of four-valve diesel engine and inlet and exhaust valve thereof Download PDFInfo
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- CN203925638U CN203925638U CN201420049865.2U CN201420049865U CN203925638U CN 203925638 U CN203925638 U CN 203925638U CN 201420049865 U CN201420049865 U CN 201420049865U CN 203925638 U CN203925638 U CN 203925638U
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Abstract
First the utility model discloses a kind of eccentric rocker arm assembly of inlet and exhaust valve of four-valve diesel engine, comprise rocking arm, one end of described rocking arm is provided with the roll wheel assembly for coordinating with cam, the other end is provided with the fore-set assembly for driving diesel engine inlet valve or exhaust valve to open and close, and described rocking arm is provided with for rotate cooperation and is arranged on the mounting hole that cylinder of diesel engine covers; Described roll wheel assembly comprises that rotation cooperation is arranged on the roller on described rocking arm, and described fore-set assembly comprises the fore-set being fixedly mounted on rocking arm, and the axis of described fore-set is parallel perpendicular to the symmetry plane of its axis with described roller.The invention also discloses a kind of four-valve diesel engine, comprise cylinder head, in described cylinder head, be provided with the inlet valve rocker assembly and the exhaust valve rocker arm assembly for driving exhaust valve to open and close that for driving into valve, open and close, described inlet valve rocker assembly and exhaust valve rocker arm assembly include the eccentric rocker arm assembly of inlet and exhaust valve as above.
Description
Technical field
The utility model belongs to Diesel Engine Technique Field, is specifically related to the eccentric rocker arm assembly of a kind of four-valve diesel engine forming based on CW200 Diesel Engine Development and inlet and exhaust valve thereof.
Background technique
Along with social development, requirement for clean environment firendly is also more and more higher, Abgasgesetz for marine diesel engine is also increasingly strict, existing two valve marine diesel engine are more and more difficult to adapt to stricter emission standard requirement aspect discharge, so the exploitation of four-valve diesel engine is just more and more important.
In order to meet the requirement of the conditions such as power and discharge, by rational structural configuration, design, can realize two valves to the leap of four valve marine diesel engine.CW200 four-valve diesel engine is researched and developed and is formed on the basis of original two valve diesel.Under these circumstances, because original 2 valve diesel inlet and exhaust valve rocker arm assemblies whens motion with corresponding valve on same working plane, if original rocker arm assembly is directly applied on four-valve diesel engine, can interfere with other component of cylinder head.
In addition, due to very frequent of the opening and closing action of the inlet and exhaust valve rocker arm assembly of diesel engine, and inlet and exhaust valve rocker arm assembly is crucial movement parts part in diesel engine, so the lubrication effect of rocker arm assembly will affect the service behaviour of its life-span and diesel engine greatly.And the lubrication effect of existing inlet and exhaust valve rocker arm assembly is bad, had a strong impact on the service behaviour of rocker arm assembly and diesel engine.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of four-valve diesel engine and the eccentric rocker arm assembly of inlet and exhaust valve thereof, the eccentric rocker arm assembly of this inlet and exhaust valve not only can meet usage requirement, and can effectively prevent from interfering with other component that are arranged in Four-valve diesel engine cylinder head of.
For achieving the above object, the utility model provides following technological scheme:
First the utility model has proposed a kind of eccentric rocker arm assembly of inlet and exhaust valve of four-valve diesel engine, comprise rocking arm, one end of described rocking arm is provided with the roll wheel assembly for coordinating with cam, the other end is provided with the fore-set assembly for driving diesel engine inlet valve or exhaust valve to open and close, and described rocking arm is provided with for rotate cooperation and is arranged on the mounting hole that cylinder of diesel engine covers; Described roll wheel assembly comprises that rotation cooperation is arranged on the roller on described rocking arm, and described fore-set assembly comprises the fore-set being fixedly mounted on rocking arm, and the axis of described fore-set is parallel perpendicular to the symmetry plane of its axis with described roller.
Further, the axis of described roller and the axis of described mounting hole are parallel.
Further, the lower end of described fore-set is provided with spherical fitting surface, and described spherical fitting surface is provided with the spheric seating coordinating with its sphere.
Further, described rocking arm is provided with for the fore-set mounting hole of described fore-set is installed, and described fore-set is fixedly mounted in this fore-set mounting hole.
Further, in described mounting hole, lining is installed, described lining is provided with and prolongs the circumferential oil groove that its inwall extends, and in described rocking arm, is respectively equipped with for the roll wheel assembly lubricant passage way system of lubricated described roll wheel assembly with for lubricating the fore-set component lubrication oil-way system of described fore-set assembly.
Further, described rocking arm is provided with for the roller mounting hole of roller is installed, and in described roller mounting hole, roller wheel shaft is installed, and described roller rotation cooperation is arranged on described roller wheel shaft.
Further, described roll wheel assembly lubricant passage way system comprises and is arranged on described roller wheel shaft periphery wall and the annular oil groove I rounding and the oilhole I that is arranged in described rocking arm and communicates with described circumferential oil groove, annular oil groove I respectively, is provided with the oilhole II that one end communicates with described annular oil groove I, the other end leads to the rotation fitting surface between described roller and roller wheel shaft in described roller wheel shaft.
Further, described fore-set component lubrication oil-way system comprises and is arranged on described fore-set periphery wall and the annular oil groove II rounding and be arranged on the oilhole III communicating with described circumferential oil groove, annular oil groove II respectively in described rocking arm, is provided with the oilhole IV that one end communicates with described annular oil groove II, the other end leads to the spherical fitting surface between described spheric seating and fore-set in described fore-set.
The utility model has also proposed a kind of four-valve diesel engine, comprise cylinder head, in described cylinder head, be provided with the inlet valve rocker assembly and the exhaust valve rocker arm assembly for driving exhaust valve to open and close that for driving into valve, open and close, described inlet valve rocker assembly and exhaust valve rocker arm assembly include the eccentric rocker arm assembly of inlet and exhaust valve as above.
The beneficial effects of the utility model are:
The eccentric rocker arm assembly of inlet and exhaust valve of the present utility model, by the two ends at rocking arm, roll wheel assembly and fore-set assembly are set respectively, roll wheel assembly coordinates with cam, and utilize the switching of fore-set Component driver intake valve or exhaust valve, can meet usage requirement, and because the axis of fore-set is set to parallel perpendicular to the symmetry plane of its axis with roller, the axis and the roller that are fore-set are not coplanar perpendicular to the symmetry plane of its axis, so, can prevent that rocking arm and other component that are arranged in Four-valve diesel engine cylinder head of from interfering.
Accompanying drawing explanation
In order to make the purpose of this utility model, technological scheme and beneficial effect clearer, the utility model provides following accompanying drawing to describe:
Fig. 1 is the structural representation of the utility model four-valve diesel engine embodiment's cylinder head;
Fig. 2 is the structural representation of the eccentric rocker arm assembly of inlet and exhaust valve;
Fig. 3 is the structural representation of roll wheel assembly lubricant passage way system;
Fig. 4 is the structural representation of fore-set assembly.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As shown in Figure 1, be the structural representation of the utility model four-valve diesel engine embodiment's cylinder head.The four-valve diesel engine of the present embodiment, comprise cylinder head 1, in cylinder head 1, be provided with the inlet valve rocker assembly 2 and the exhaust valve rocker arm assembly 3 for driving exhaust valve to open and close that for driving into valve, open and close, inlet valve rocker assembly 2 and exhaust valve rocker arm assembly 3 include the eccentric rocker arm assembly of inlet and exhaust valve.
The eccentric rocker arm assembly of the inlet and exhaust valve of the present embodiment comprises Rocker arm 4; one end of Rocker arm 4 is provided with the roll wheel assembly for coordinating with cam; the other end is provided with the fore-set assembly for driving diesel engine inlet valve or exhaust valve to open and close, and Rocker arm 4 is provided with for being rotated cooperation and is arranged on the mounting hole on cylinder cover for diesel engine 1.Roll wheel assembly comprises that rotation cooperation is arranged on the roller 6 on Rocker arm 4, concrete; Rocker arm 4 is provided with for the roller mounting hole of roller 6 is installed; roller wheel shaft 7 is installed in roller mounting hole; roller 6 rotation cooperations are arranged on roller wheel shaft 7, and the axis of the present embodiment roller 6 is parallel with the axis of mounting hole, by roller 6 is set; can roll and coordinate with cam, reduce surface friction drag.Fore-set assembly comprises the fore-set 8 being fixedly mounted on Rocker arm 4, the axis of fore-set 8 is parallel perpendicular to the symmetry plane of its axis with roller 6, the lower end of fore-set 8 is provided with spherical fitting surface, spherical fitting surface is provided with the spheric seating 9 coordinating with its sphere, spheric seating 9 riveted joints are arranged on spherical fitting surface, prevent from dropping, by spherical fitting surface is set, the plane motion of Rocker arm 4 can be converted to the vertical motion of spheric seating 9.Rocker arm 4 is provided with for the fore-set mounting hole of fore-set 8 is installed, and fore-set 8 is fixedly mounted in fore-set mounting hole by thread matching structure.
Further, lining 5 is installed in mounting hole, lining 5 is provided with and prolongs the circumferential oil groove 11 that its inwall extends, and in Rocker arm 4, is respectively equipped with for the roll wheel assembly lubricant passage way system of lubricating roller assembly with for lubricating the fore-set component lubrication oil-way system of fore-set assembly.Roll wheel assembly lubricant passage way system comprises the annular oil groove I 12 that is arranged on roller wheel shaft 7 periphery walls and rounds and is arranged in Rocker arm 4 and the oilhole I 13 communicating with circumferential oil groove 11, annular oil groove I 12 respectively, in roller wheel shaft 7, be provided with that one end communicates with annular oil groove I 12, the other end leads to roller 6 and roller wheel shaft 7 between the oilhole II 18 of rotation fitting surface, lubricant oil can be injected between roller 6 and roller wheel shaft 7.Fore-set component lubrication oil-way system comprises the annular oil groove II 14 that is arranged on fore-set 8 periphery walls and rounds and is arranged on the oilhole III 15 communicating with circumferential oil groove 11, annular oil groove II 14 respectively in Rocker arm 4, in fore-set 8, be provided with that one end communicates with annular oil groove II 14, the other end leads to spheric seating 9 and fore-set 8 between the oilhole IV 16 of spherical fitting surface, lubricant oil can be injected between spheric seating 9 and fore-set 8.Certainly, in order to process each oilhole, also on Rocker arm 4, be provided with plug screw 17.By roll wheel assembly lubricant passage way system and fore-set component lubrication oil-way system are set, can effectively improve lubrication effect, improve service behaviour and the working life of rocker arm assembly and diesel engine.
The eccentric rocker arm assembly of inlet and exhaust valve of the present embodiment, by the two ends at Rocker arm 4, roll wheel assembly and fore-set assembly are set respectively, roll wheel assembly coordinates with cam, and utilize the switching of fore-set Component driver intake valve or exhaust valve, can meet usage requirement, and because the axis of fore-set 8 is set to parallel perpendicular to the symmetry plane of its axis with roller 6, the axis and the roller that are fore-set 8 are not coplanar perpendicular to the symmetry plane of its axis, so, can prevent that rocking arm and other component that are arranged in Four-valve diesel engine cylinder head of from interfering.
Finally explanation is, above preferred embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can to it, make various changes in the form and details, and not depart from the utility model claims limited range.
Claims (9)
1. the eccentric rocker arm assembly of the inlet and exhaust valve of a four-valve diesel engine, it is characterized in that: comprise rocking arm, one end of described rocking arm is provided with the roll wheel assembly for coordinating with cam, the other end is provided with the fore-set assembly for driving diesel engine inlet valve or exhaust valve to open and close, and described rocking arm is provided with for rotate cooperation and is arranged on the mounting hole that cylinder of diesel engine covers; Described roll wheel assembly comprises that rotation cooperation is arranged on the roller on described rocking arm, and described fore-set assembly comprises the fore-set being fixedly mounted on rocking arm, and the axis of described fore-set is parallel perpendicular to the symmetry plane of its axis with described roller.
2. the eccentric rocker arm assembly of the inlet and exhaust valve of four-valve diesel engine according to claim 1, is characterized in that: the axis of described roller is parallel with the axis of described mounting hole.
3. the eccentric rocker arm assembly of the inlet and exhaust valve of four-valve diesel engine according to claim 1, is characterized in that: the lower end of described fore-set is provided with spherical fitting surface, and described spherical fitting surface is provided with the spheric seating coordinating with its sphere.
4. the eccentric rocker arm assembly of the inlet and exhaust valve of four-valve diesel engine according to claim 3, is characterized in that: described rocking arm is provided with for the fore-set mounting hole of described fore-set is installed, and described fore-set is fixedly mounted in this fore-set mounting hole.
5. according to the eccentric rocker arm assembly of the inlet and exhaust valve of the four-valve diesel engine described in claim 3 or 4, it is characterized in that: in described mounting hole, lining is installed, described lining is provided with and prolongs the circumferential oil groove that its inwall extends, and in described rocking arm, is respectively equipped with for the roll wheel assembly lubricant passage way system of lubricated described roll wheel assembly with for lubricating the fore-set component lubrication oil-way system of described fore-set assembly.
6. the eccentric rocker arm assembly of the inlet and exhaust valve of four-valve diesel engine according to claim 5, it is characterized in that: described rocking arm is provided with for the roller mounting hole of roller is installed, in described roller mounting hole, roller wheel shaft is installed, described roller rotation cooperation is arranged on described roller wheel shaft.
7. the eccentric rocker arm assembly of the inlet and exhaust valve of four-valve diesel engine according to claim 6, it is characterized in that: described roll wheel assembly lubricant passage way system comprises and is arranged on described roller wheel shaft periphery wall and the annular oil groove I rounding and the oilhole I that is arranged in described rocking arm and communicates with described circumferential oil groove, annular oil groove I respectively, is provided with the oilhole II that one end communicates with described annular oil groove I, the other end leads to the rotation fitting surface between described roller and roller wheel shaft in described roller wheel shaft.
8. the eccentric rocker arm assembly of the inlet and exhaust valve of four-valve diesel engine according to claim 5, it is characterized in that: described fore-set component lubrication oil-way system comprises and is arranged on described fore-set periphery wall and the annular oil groove II rounding and be arranged on the oilhole III communicating with described circumferential oil groove, annular oil groove II respectively in described rocking arm, is provided with the oilhole IV that one end communicates with described annular oil groove II, the other end leads to the spherical fitting surface between described spheric seating and fore-set in described fore-set.
9. a four-valve diesel engine, comprise cylinder head, it is characterized in that: in described cylinder head, be provided with the inlet valve rocker assembly and the exhaust valve rocker arm assembly for driving exhaust valve to open and close that for driving into valve, open and close, described inlet valve rocker assembly and exhaust valve rocker arm assembly include the eccentric rocker arm assembly of inlet and exhaust valve as described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420049865.2U CN203925638U (en) | 2014-01-26 | 2014-01-26 | The eccentric rocker arm assembly of four-valve diesel engine and inlet and exhaust valve thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420049865.2U CN203925638U (en) | 2014-01-26 | 2014-01-26 | The eccentric rocker arm assembly of four-valve diesel engine and inlet and exhaust valve thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203925638U true CN203925638U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420049865.2U Expired - Fee Related CN203925638U (en) | 2014-01-26 | 2014-01-26 | The eccentric rocker arm assembly of four-valve diesel engine and inlet and exhaust valve thereof |
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| Country | Link |
|---|---|
| CN (1) | CN203925638U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533562A (en) * | 2015-01-04 | 2015-04-22 | 宁波中和汽配有限公司 | Valve rocker for automobile engine |
| CN104712384A (en) * | 2015-03-31 | 2015-06-17 | 浙江龙虎锻造有限公司 | Rocker arm for automobile |
| CN110552751A (en) * | 2019-09-18 | 2019-12-10 | 广西玉柴机器股份有限公司 | take lubricating structure's inside and outside roller type rocking arm |
-
2014
- 2014-01-26 CN CN201420049865.2U patent/CN203925638U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533562A (en) * | 2015-01-04 | 2015-04-22 | 宁波中和汽配有限公司 | Valve rocker for automobile engine |
| CN104712384A (en) * | 2015-03-31 | 2015-06-17 | 浙江龙虎锻造有限公司 | Rocker arm for automobile |
| CN110552751A (en) * | 2019-09-18 | 2019-12-10 | 广西玉柴机器股份有限公司 | take lubricating structure's inside and outside roller type rocking arm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160920 Address after: 402262 Chongqing city Jiangjin Degan Industrial Park Chongqing Weichai Technology Center Patentee after: Chongqing Wei Chai Engine Ltd. Patentee after: Weichai Heavy Machinery Co., Ltd. Address before: 402262 Chongqing city Jiangjin Degan Industrial Park Chongqing Weichai Technology Center Patentee before: Chongqing Wei Chai Engine Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20190126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |