CN104696036A - Engine rocker capable of lubricating valve clearance - Google Patents
Engine rocker capable of lubricating valve clearance Download PDFInfo
- Publication number
- CN104696036A CN104696036A CN201510019107.5A CN201510019107A CN104696036A CN 104696036 A CN104696036 A CN 104696036A CN 201510019107 A CN201510019107 A CN 201510019107A CN 104696036 A CN104696036 A CN 104696036A
- Authority
- CN
- China
- Prior art keywords
- rocker
- oil
- valve
- engine
- oil channel
- 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
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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
- F01L1/181—Centre pivot rocking arms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention discloses an engine rocker capable of lubricating valve clearance. The engine rocker is structurally characterized in that an auxiliary oil channel is added to the rocker and communicated with a main oil channel, and the top end of the main oil channel is sealed with a steel ball; an oil outlet hole is formed in one end, corresponding to the main oil channel, in the rocker; an oil jet hole of the auxiliary oil channel is aligned to a contact surface of a valve and the rocker, and meanwhile, the diameter of the oil jet hole of the auxiliary oil channel is smaller than that of the oil outlet hole of the main oil channel, so that ejected engine oil has sufficient ejection pressure. By means of angle design of the main oil channel and the auxiliary oil channel, the engine oil ejected by the auxiliary oil channel is directly sprayed to the contact surface of the valve and the rocker; for a rocker assembly having the traditional functions, lubricating oil is directly sprayed to the contact position through design change of the oil paths in the rocker, the temperature of the contact surface is reduced while the lubrication function is guaranteed, and the problem of wear of the valve and the rocker is solved effectively. The engine rocker is simple in structure and is formed through slight improvement of the conventional rocker structure.
Description
Technical field
The invention belongs to engine parts structure technology, be specifically related to a kind of improvement of engine rocker technology.
Background technique
The effect of valve rocker be coordinate camshaft in good time open valve, complete air inlet and the exhaust of motor.One end of rocking arm press against valve stem, and the other end connects tappet, and on camshaft, the peach tip part in the inclined center of circle correspond to each push rod.When overhang forwards top to, tappet will move upward under pressure, and promote rocking arm rear end and lift, due to leverage, rocking arm front end then compresses valve stem, and valve is opened.When the peach tip part on cam turns to below through 180 ° of motions, valve under the reaction force of valve spring, upwards can rise, and completes the work of closing air outlet flue.
In recent years along with the develop rapidly of automobile industry, also more and more higher to the rotation speed requirements of motor, the motion frequency therefore between valve and rocking arm and speed also more and more faster.Because these moving element working environments are comparatively severe, lubrication between conventional rocker and valve is by in-engine oil mist lubrication, but this mode effect in this high speed engine is bad, and cause the wearing and tearing of valve and rocking arm larger, except affecting engine performance, the serious engine valve that causes ruptures, and motor is scrapped.Proposition of the present invention can make valve and rocking arm larger problem of wearing and tearing be resolved.
Summary of the invention
The object of the invention is, propose a kind of can by the engine rocker in oil lubricating valve stem and rocking arm gap, thus the problem that valve and rocking arm wear and tear can be solved.
For realizing this object the technical solution used in the present invention be: on rocking arm, set up secondary oil duct, secondary oil duct communicates with main oil gallery, and the top steel ball of main oil gallery is shut.Oil outlet is provided with one end corresponding with main oil gallery in rocking arm.The nozzle opening of secondary oil duct aims at the surface of contact of valve and rocking arm.
In prior art, the oil outlet of main oil gallery is arranged on the side of rocking arm, and the lubrication between valve stem and rocker head is the mist of oil formed by main oil-hole ejection machine oil, indirectly drops between valve stem and rocker head.Except lubrication effect is bad, because the oil level falling valve stem and rocking arm gap is little, so substantially can not get cooling.The present invention has set up the secondary oil duct communicated with main oil gallery on rocking arm, is shut by former for main oil gallery oil outlet simultaneously.By designing specific major-minor oil duct angle, ensure that the machine oil that secondary oil duct sprays is directly injected on the surface of contact of valve and rocking arm.
Feature of the present invention and beneficial effect are that Rocker arm assembly has under traditional function, by changing oil circuit design in rocking arm, lubricant oil is made to be directly injected to contact position, while guarantee lubrication, reduce the temperature of surface of contact, thus efficiently solve the problem that valve and rocking arm wear and tear.Structure of the present invention is simple, improves a little rocker structure traditional at present, efficiently solves the difficult problem that engine valve and rocker head wear and tear, improves the quality of motor.
Accompanying drawing explanation
Fig. 1 is the Principles and methods figure of rocking arm of the present invention.Arrow shown in figure is direction of engine oil flow.
Fig. 2 is major and minor oil channel structure parameter schematic diagram in the present invention.
Embodiment
Structure of the present invention to be further described by embodiment below in conjunction with accompanying drawing.
Can lubricate the engine rocker of valve clearance, its structure is: on rocking arm 1, set up secondary oil duct 5, secondary oil duct communicates with main oil gallery 4, and the top steel ball 6 of main oil gallery is shut, and the nozzle opening of secondary oil duct aims at the surface of contact (as Fig. 1) of valve 2 and rocking arm.Be provided with oil outlet 3 with one end corresponding with main oil gallery in rocking arm, machine oil is lubricated adjusting screw of rocker arm 7 by oil outlet.Machine oil flows into main oil gallery and main oil gallery from the pitman arm shaft of hollow, requires that the aperture Ф 2 of secondary oil duct oilhole is less than the aperture Ф 1 of main oil gallery oilhole simultaneously, to ensure that the machine oil sprayed has enough jet pressures.
As embodiment, the aperture Ф 2=1.5mm of secondary oil duct oilhole; The aperture Ф 1=3mm of main oil gallery oilhole.
In order to ensure that the machine oil that main oil gallery sprays is directly injected on the surface of contact of valve and rocking arm, the angle α between described main oil gallery and secondary oil duct is 85 °; The center line of secondary oil duct is to the projector distance H1=3mm of rocking arm seamed edge.
Make the surface of contact of valve and rocking arm obtain sufficient lubrication and cooling by above-mentioned design, thus prevent valve stem and rocker head from wearing and tearing.
The present invention has been successfully applied in QD32 Engine Series, and using effect is obvious, solves the problem that valve stem and rocker head wear and tear, the workmanship of this Engine Series is improved significantly.
Claims (3)
1. can lubricate the engine rocker of valve clearance, it is characterized in that: on rocking arm (1), set up secondary oil duct (5), secondary oil duct communicates with main oil gallery (4), the top steel ball (6) of main oil gallery is shut, the nozzle opening of secondary oil duct aims at the surface of contact of valve (2) and rocking arm, be provided with oil outlet (3) with one end corresponding with main oil gallery in rocking arm, machine oil is lubricated adjusting screw of rocker arm (7) by oil outlet.
2. according to the engine rocker that can lubricate valve clearance according to claim 1, it is characterized in that: the aperture Ф 2 of described secondary oil duct oilhole is less than the aperture Ф 1 of main oil gallery oilhole.
3. according to the engine rocker that can lubricate valve clearance according to claim 1, it is characterized in that: the angle between described main oil gallery and secondary oil duct is 85 °; The center line of secondary oil duct is 3mm to the projector distance of rocking arm seamed edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510019107.5A CN104696036A (en) | 2015-01-15 | 2015-01-15 | Engine rocker capable of lubricating valve clearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510019107.5A CN104696036A (en) | 2015-01-15 | 2015-01-15 | Engine rocker capable of lubricating valve clearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104696036A true CN104696036A (en) | 2015-06-10 |
Family
ID=53343525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510019107.5A Pending CN104696036A (en) | 2015-01-15 | 2015-01-15 | Engine rocker capable of lubricating valve clearance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104696036A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089346A (en) * | 2016-08-18 | 2016-11-09 | 安徽天利动力股份有限公司 | A kind of rocker arm assembly of band forced lubrication structure |
| CN107060932A (en) * | 2016-12-21 | 2017-08-18 | 中国北方发动机研究所(天津) | A kind of engine roller rocking arm |
| CN111734510A (en) * | 2020-07-31 | 2020-10-02 | 广西玉柴机器股份有限公司 | Engine rocker arm |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200975273Y (en) * | 2006-11-17 | 2007-11-14 | 哈尔滨哈飞汽车工业集团有限公司 | Double lubricating circuit valve rocker apparatus |
| CN102330585A (en) * | 2011-08-05 | 2012-01-25 | 无锡开普动力有限公司 | Lubrication mechanism of valve rocker |
| CN202883042U (en) * | 2012-10-28 | 2013-04-17 | 长城汽车股份有限公司 | Automobile engine valve rocker lubricating structure |
| US20140283774A1 (en) * | 2013-03-22 | 2014-09-25 | Caterpillar Inc. | Rocker arm assembly and method of lubricating a valve train |
-
2015
- 2015-01-15 CN CN201510019107.5A patent/CN104696036A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200975273Y (en) * | 2006-11-17 | 2007-11-14 | 哈尔滨哈飞汽车工业集团有限公司 | Double lubricating circuit valve rocker apparatus |
| CN102330585A (en) * | 2011-08-05 | 2012-01-25 | 无锡开普动力有限公司 | Lubrication mechanism of valve rocker |
| CN202883042U (en) * | 2012-10-28 | 2013-04-17 | 长城汽车股份有限公司 | Automobile engine valve rocker lubricating structure |
| US20140283774A1 (en) * | 2013-03-22 | 2014-09-25 | Caterpillar Inc. | Rocker arm assembly and method of lubricating a valve train |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089346A (en) * | 2016-08-18 | 2016-11-09 | 安徽天利动力股份有限公司 | A kind of rocker arm assembly of band forced lubrication structure |
| CN107060932A (en) * | 2016-12-21 | 2017-08-18 | 中国北方发动机研究所(天津) | A kind of engine roller rocking arm |
| CN107060932B (en) * | 2016-12-21 | 2018-11-02 | 中国北方发动机研究所(天津) | A kind of engine roller rocking arm |
| CN111734510A (en) * | 2020-07-31 | 2020-10-02 | 广西玉柴机器股份有限公司 | Engine rocker arm |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |
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| WD01 | Invention patent application deemed withdrawn after publication |