CN107701254A - Rocking arm - Google Patents
Rocking arm Download PDFInfo
- Publication number
- CN107701254A CN107701254A CN201710954147.8A CN201710954147A CN107701254A CN 107701254 A CN107701254 A CN 107701254A CN 201710954147 A CN201710954147 A CN 201710954147A CN 107701254 A CN107701254 A CN 107701254A
- Authority
- CN
- China
- Prior art keywords
- arm
- axle sleeve
- arm body
- blind hole
- 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
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
- F01L1/181—Centre 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The present invention relates to a kind of rocking arm, including the arm body made of aluminium alloy, the arm body bottom are provided with axle sleeve, and arm body is divided into long arm section and galianconism section by the axle sleeve, and the axial length and arm body thickness ratio of the axle sleeve are 1:（0.8~1）；The long arm section end is hinged with the roller for promoting valve, the galianconism section end set has the adjusting screw to valve gap adjustment, blind hole is provided with the top of the arm body, the blind hole is on the arm body between adjusting screw and axle sleeve, and the direction of the depth of the blind hole along adjusting screw to axle sleeve is deepened successively.The present apparatus is simple in construction, and intensity is high, service life length.
Description
Technical field
The present invention relates to a kind of rocking arm.
Background technology
Rocking arm in automobile is actually a double-arm lever, mainly includes an axle sleeve, is arranged on the long-armed of axle sleeve both sides
And galianconism；Power for push rod is transmitted changes direction, acts on valve rod end to push valve open.Rocking arm is held in swing process
By very big moment of flexure, it is therefore desirable to have enough strength and stiffness, and less quality.
To meet above-mentioned requirements, existing rocking arm product is mostly made using forged steel, cast iron etc., and the thickness of long galianconism is done
Into thin wall shape, its intensity can not meet the working environment under high-speed motion, if increase wall thickness, causes quality overweight again, influence
Energy consumption, reduce the efficiency of engine.
The content of the invention
The present invention has made improvements in view of the above-mentioned problems of the prior art, i.e., the technical problems to be solved by the invention are
A kind of rocking arm is provided, simple in construction, intensity is high, service life length.
In order to solve the above-mentioned technical problem, the technical scheme is that：A kind of rocking arm, including the arm made of aluminium alloy
Body, the arm body bottom are provided with axle sleeve, and arm body is divided into long arm section and galianconism section, the axial length of the axle sleeve by the axle sleeve
It is 1 with arm body thickness ratio:（0.8~1）；The long arm section end is hinged with the roller for promoting valve, the galianconism Duan Duan
Portion is provided with the adjusting screw to valve gap adjustment, blind hole is provided with the top of the arm body, the blind hole is positioned at adjustment spiral shell
Follow closely and on the arm body between axle sleeve, the direction of the depth of the blind hole along adjusting screw to axle sleeve is deepened successively.
Further, the width of the blind hole is the half of arm body thickness.
Further, the length of the blind hole is the 1/3 ~ 1/2 of arm body length.
Further, the blind hole bosom height and the height ratio at most shallow place are 1：（0.25~0.5）.
Further, the length of the long arm section and galianconism section ratio is 1.5:1.
Further, it is provided with bushing on the axle sleeve madial wall.
Further, the long arm section end set has recess, and the roller is hinged in recess.
Further, the galianconism section end set has the screwed hole for the adjusting screw that is spirally connected.
Further, when the axle sleeve axial length is more than arm body thickness, it is domatic that transition is provided therebetween.
Compared with prior art, the invention has the advantages that：Arm body is more or less the same with half bush wall thickness in the present apparatus,
The thickness for the arm body widened on the basis of old structured rocking arm, while thickness is increased, in order to not increase quality, in arm
The blind hole for not influenceing structural strength is opened up at the top of body, quality is alleviated, improves intensity and service life.
The present invention will be further described in detail with reference to the accompanying drawings and detailed description.
Brief description of the drawings
Fig. 1 is the organigram at one visual angle of the embodiment of the present invention.
Fig. 2 is the organigram at another visual angle of the embodiment of the present invention.
In figure：1- arm bodies, 2- axle sleeves, 3- long arm sections, 4- galianconism sections, 5- blind holes, 6- rollers, 7- adjusting screws, 8- transition
It is domatic.
Embodiment
Embodiment one：As shown in Figure 1 and 2, rocking arm, including the arm body 1 made of aluminium alloy are planted, the arm body bottom is set
There is axle sleeve 2, arm body is divided into long arm section 3 and galianconism section 4 by the axle sleeve, and the axial length and arm body thickness ratio of the axle sleeve are
1:0.8；The long arm section end is hinged with the roller 6 for promoting valve, and the galianconism section end set adjusts gas
The adjusting screw 7 in door gap, the arm body top are provided with blind hole 5, arm of the blind hole between adjusting screw and axle sleeve
On body, the direction of the depth of the blind hole along adjusting screw to axle sleeve is deepened successively.
In the present embodiment, blind hole do not close on long arm section design, be in order to avoid reduce long arm section structural strength, meanwhile,
Blind hole is not through arm body.Blind hole is arranged on galianconism section top, effectively reduces quality simultaneously and does not reduce intensity.
In the present embodiment, the width of the blind hole is the half of arm body thickness.
In the present embodiment, the length of the blind hole is the 1/2 of arm body length.
In the present embodiment, blind hole bosom height is 3 times of the height at most shallow place.
In the present embodiment, the length ratio of the long arm section and galianconism section is 1.5:1.
In the present embodiment, bushing is provided with the axle sleeve madial wall.
In the present embodiment, the long arm section end set has recess, and the roller is hinged in recess.
In the present embodiment, the galianconism section end set has the screwed hole for the adjusting screw that is spirally connected.
In the present embodiment, when the axle sleeve axial length is more than arm body thickness, transition domatic 8 is provided therebetween.Keep away
Exempt from the junction stress concentration of arm body and axle sleeve, while improve both bonding strengths.
By broadening the thickness of arm body, quality is reduced by the blind hole by not influenceing structural strength so that originally shake
Arm does not change quality while structural strength is improved, simple in construction, and service life increases.
The width increase of rocking arm, installation contact surface increase, and intensity is higher, and work is more stable, rocking arm such as korean pine engine
Valve will gas leakage；If weight is corresponding after width increases increases, engine is with regard to slack-off, by adding blind hole, the blind hole
Correlation between size and rocking arm appearance and size is through Analysis of materials mechanics and design, reaches a preferred values.
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, it should all belong to the covering scope of the present invention.
Claims (9)
- A kind of 1. rocking arm, it is characterised in that：Including the arm body made of aluminium alloy, the arm body bottom is provided with axle sleeve, described Arm body is divided into long arm section and galianconism section by axle sleeve, and the axial length and arm body thickness ratio of the axle sleeve are 1:（0.8~1）；It is described Long arm section end is hinged with the roller for promoting valve, and the galianconism section end set has the adjustment to valve gap adjustment Screw, blind hole is provided with the top of the arm body, the blind hole is on the arm body between adjusting screw and axle sleeve, the blind hole Deepen successively in direction of the depth along adjusting screw to axle sleeve.
- 2. rocking arm according to claim 1, it is characterised in that：The width of the blind hole is the half of arm body thickness.
- 3. rocking arm according to claim 1, it is characterised in that：The length of the blind hole is the 1/3 ~ 1/2 of arm body length.
- 4. rocking arm according to claim 1, it is characterised in that：The blind hole bosom height and the height ratio at most shallow place For 1：（0.25~0.5）.
- 5. rocking arm according to claim 1, it is characterised in that：The length of the long arm section and galianconism section ratio is 1.5:1.
- 6. rocking arm according to claim 1, it is characterised in that：Bushing is provided with the axle sleeve madial wall.
- 7. rocking arm according to claim 1, it is characterised in that：The long arm section end set has recess, the roller hinge It is connected in recess.
- 8. rocking arm according to claim 1, it is characterised in that：The galianconism section end set has the spiral shell for the adjusting screw that is spirally connected Pit.
- 9. rocking arm according to claim 1, it is characterised in that：When the axle sleeve axial length is more than arm body thickness, the two Between to be provided with transition domatic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710954147.8A CN107701254A (en) | 2017-10-13 | 2017-10-13 | Rocking arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710954147.8A CN107701254A (en) | 2017-10-13 | 2017-10-13 | Rocking arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107701254A true CN107701254A (en) | 2018-02-16 |
Family
ID=61184940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710954147.8A Pending CN107701254A (en) | 2017-10-13 | 2017-10-13 | Rocking arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107701254A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4727832A (en) * | 1986-06-13 | 1988-03-01 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Roller rocker arm |
| US4856469A (en) * | 1987-09-25 | 1989-08-15 | Mazda Motor Corporation | Mechanical parts of valve driving mechanism for internal combustion engine |
| US4969957A (en) * | 1988-08-27 | 1990-11-13 | Mazda Motor Corporation | Method of producing a mechanical component with superior fatigue strength |
| CN101268254A (en) * | 2005-09-30 | 2008-09-17 | 谢夫勒两合公司 | Asymmetrical rocker arm for a valve gear of an internal combustion engine |
| CN203335156U (en) * | 2013-07-05 | 2013-12-11 | 宁波中和汽配有限公司 | Valve rocker |
| CN104533562A (en) * | 2015-01-04 | 2015-04-22 | 宁波中和汽配有限公司 | Valve rocker for automobile engine |
| US20160138436A1 (en) * | 2014-11-18 | 2016-05-19 | Caterpillar Inc. | Method of remanufacturing a rocker arm and a remanufactured rocker arm |
-
2017
- 2017-10-13 CN CN201710954147.8A patent/CN107701254A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4727832A (en) * | 1986-06-13 | 1988-03-01 | Mitsubishi Jidosha Kogyo Kabushiki Kaisha | Roller rocker arm |
| US4856469A (en) * | 1987-09-25 | 1989-08-15 | Mazda Motor Corporation | Mechanical parts of valve driving mechanism for internal combustion engine |
| US4969957A (en) * | 1988-08-27 | 1990-11-13 | Mazda Motor Corporation | Method of producing a mechanical component with superior fatigue strength |
| CN101268254A (en) * | 2005-09-30 | 2008-09-17 | 谢夫勒两合公司 | Asymmetrical rocker arm for a valve gear of an internal combustion engine |
| CN203335156U (en) * | 2013-07-05 | 2013-12-11 | 宁波中和汽配有限公司 | Valve rocker |
| US20160138436A1 (en) * | 2014-11-18 | 2016-05-19 | Caterpillar Inc. | Method of remanufacturing a rocker arm and a remanufactured rocker arm |
| CN104533562A (en) * | 2015-01-04 | 2015-04-22 | 宁波中和汽配有限公司 | Valve rocker for automobile engine |
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Legal Events
| 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: 20180216 |