CN107060932A - A kind of engine roller rocking arm - Google Patents

A kind of engine roller rocking arm Download PDF

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Publication number
CN107060932A
CN107060932A CN201611193065.8A CN201611193065A CN107060932A CN 107060932 A CN107060932 A CN 107060932A CN 201611193065 A CN201611193065 A CN 201611193065A CN 107060932 A CN107060932 A CN 107060932A
Authority
CN
China
Prior art keywords
roller
rocking arm
fork
rocker body
interlude
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.)
Granted
Application number
CN201611193065.8A
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Chinese (zh)
Other versions
CN107060932B (en
Inventor
胡立萍
张丽
孙亚奇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China North Engine Research Institute Tianjin
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China North Engine Research Institute Tianjin
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Publication date
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Priority to CN201611193065.8A priority Critical patent/CN107060932B/en
Publication of CN107060932A publication Critical patent/CN107060932A/en
Application granted granted Critical
Publication of CN107060932B publication Critical patent/CN107060932B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12Transmitting gear between valve drive and valve
    • F01L1/18Rocking arms or levers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M9/00Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
    • F01M9/10Lubrication of valve gear or auxiliaries
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01LCYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12Transmitting gear between valve drive and valve
    • F01L1/18Rocking arms or levers
    • F01L2001/186Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison

Abstract

The invention provides a kind of engine roller rocking arm, including rocker body, universal ball structure and roller bearing, the rocker body is U-shape structure, includes the fork-type arm at interlude and its two ends, and two fork-type arms are constituted by the transition circle segmental arc and straightway coupled with interlude;The end of two fork-type arms of the rocker body is respectively provided with one and opens a grade bearing hole, each opens grade bearing hole and installs a set of roller bearing, each roller bearing is made up of roller and roller axle.Relative to prior art, the present invention has the advantage that:Roller rocking arm of the present invention can realize the demand of the high compact Layout air dispensing machine for top-set camshaft of Four valve.And roller rocking arm rigidity is larger, it is ensured that valve opening of the same name and closing are synchronous, there is accurate port timing.

Description

A kind of engine roller rocking arm
Technical field
The invention belongs to engines distribution structure member technical field, more particularly, to a kind of engine roller rocking arm.
Background technology
Rocking arm is one of important parts in engine valve actuating mechanism, and its function is the motion and effect for transmitting cam Power, changes direction and is transmitted to valve, make valve opening.Rocking arm shape matching in valve actuating mechanism is complicated.At present, it is high-power both at home and abroad The structural shape of diesel engine rocking arm is generally single armed or both arms fork shaped lever, with structure it is relatively simple the features such as.And it is this Rocking arm is elongate rod because of both arms forked type, and this rocking arm rigidity is not big enough and both arms forked type bar is it is difficult to ensure that rigidity requirement, while The demand of tight space overhead camshaft arrangement is not adapted to, and valve actuating mechanism frictional work is big;It is past when driving two valves of the same name There is big phase deviation in opening and closing toward valve, and the error of port timing is larger, can influence the performance of engine.
The content of the invention
In view of this, the present invention is directed to propose a kind of engine roller rocking arm, can be achieved the high compact Layout top of Four valve Put the demand of camshaft valve actuating mechanism.And roller rocking arm rigidity is larger, it is ensured that valve opening of the same name and closing are synchronous, have Accurate port timing.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way:
A kind of engine roller rocking arm, including rocker body, universal ball structure and roller bearing, the rocker body are U Type structure, including interlude and the fork-type arm at its two ends, two fork-type arms are by the transition circle segmental arc and straight line coupled with interlude Section is constituted;The end of two fork-type arms of the rocker body is respectively provided with one and opens a grade bearing hole, each opens grade bearing hole and installs one Roller bearing is covered, each roller bearing is made up of roller and roller axle;The two ends of the interlude of the rocker body are respectively provided with One mounting hole, each mounting hole installs a universal ball structure, and the bottom connection pressure head of the universal ball structure is described universal Upper surface one end that spherical structure is located at interlude is installed by universal ball end adjustment bolt;Oil leab is provided with inside the rocker body, The oil duct that lubricating oil is entered back on two fork-type arms after being entered by the oil circuit on rocker arm shaft in rocker body is to lubricate valve rod end And cam end.
Further, it is stifled provided with rocking arm oil between the opening on the inside of grade bearing hole of the roller and rocker body.
Further, the oil duct in the fork-type arm is provided with steel ball in one end of valve.
Further, the interlude is linear pattern.
Relative to prior art, the present invention has the advantage that:
(1) roller rocking arm of the present invention can realize the demand of the high compact Layout air dispensing machine for top-set camshaft of Four valve.And And roller rocking arm rigidity is larger, it is ensured that valve opening of the same name and closing are synchronous, there is accurate port timing.
(2) between the bearing outer ring and camshaft of roller rocking arm for roll plus slide, can be effectively reduced rocking arm and Friction and wear between camshaft, valve actuating mechanism friction power loss reduction, valve actuating mechanism has good power performance.
(3) the oil leab arrangement of roller rocking arm of the present invention is convenient, and oil can be individually arranged on each arm of both sides Road, can easily realize the lubrication of valve end and each roller bearing;Engine consumption can also be reduced to a certain extent.Rolling Pillar rocking arm can be applicable on the high reinforcing stimuluses such as engineering machinery, car and boat power, gas engine.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the front view of engine roller rocking arm described in the embodiment of the present invention;
Fig. 2 is Fig. 1 A-A faces sectional view.
Description of reference numerals:
1- pressure heads, 2- steel balls, 3- universal ball end adjustment bolts, 4- rollers, 5- roller axles, 6- rocker bodies, 7- rocking arms oil is stifled.
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases Mutually combination.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of engine roller rocking arm, as shown in Figure 1, 2, including rocker body 6, universal ball structure and roller bearing,
The rocker body 6 is U-shape structure, includes two fork-type arms at interlude and its two ends, two fork-type arms by with centre The transition circle segmental arc and straightway of section connection are constituted, and the interlude is linear pattern;
The end of two fork-type arms of the rocker body 6 is cam end, is respectively provided with one and opens a grade bearing hole, each drives a grade bearing A set of roller bearing is installed in hole, and each roller bearing is made up of roller 4 and roller axle 5, and the roller 4 and rocker body are opened Provided with rocking arm oil stifled 7 between on the inside of shelves bearing hole;
The interlude of the rocker body 6 is valve end, and the two ends of the interlude are respectively provided with a mounting hole, each to install A universal ball structure is installed in hole, and the bottom connection pressure head 1 of the universal ball structure, the universal ball structure is located at interlude Universal ball end adjustment bolt 3 is installed in upper surface one end, to adjust the gap with valve, it is ensured that two valves of the same name are synchronously opened And closing;
Oil leab is equipped with inside the interlude and two fork-type arms of the rocker body 6, lubricating oil passes through on rocker arm shaft The oil duct that oil circuit is entered back on two fork-type arms after entering in rocker body 6 is to lubricate valve rod end and cam end.
Oil duct in the fork-type arm is provided with steel ball 2 in one end of valve.
When engine is distribution cam axle rotation when working, drive rocking arm to be swung around rocker arm shaft by rocking arm roller 4, roll The head of pillar rocking arm is descending, and the pressure head 1 of universal ball structure contacts with valve stem end surface and pushes down on valve opening, leads to simultaneously Valve collet and valve spring holder compression valve spring are crossed, as camshaft continues to rotate, cam is reached after maximum lift, is pressed The valve spring of contracting is by valve spring disk gradually by valve-closing.Lubricating oil enters rocking arm by the oil circuit opened up on rocker arm shaft The oil duct entered back into after in body 6 on two fork-type arms is to lubricate valve rod end and cam end.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.

Claims (4)

1. a kind of engine roller rocking arm, it is characterised in that:Including rocker body (6), universal ball structure and roller bearing,
The rocker body (6) is U-shape structure, includes the fork-type arm at interlude and its two ends, and two fork-type arms join by with interlude The transition circle segmental arc and straightway connect is constituted;
The end of two fork-type arms of the rocker body (6) is respectively provided with one and opens a grade bearing hole, each opens grade bearing hole and installs one Roller bearing is covered, each roller bearing is made up of roller (4) and roller axle (5);
The two ends of the interlude of the rocker body (6) are respectively provided with a mounting hole, and each mounting hole installs a universal ball structure, Install universal in the bottom connection pressure head (1) of the universal ball structure, upper surface one end that the universal ball structure is located at interlude Bulb adjustment bolt (3);
Be provided with oil leab inside the rocker body (6), lubricating oil entered by the oil circuit on rocker arm shaft in rocker body (6) after again Into the oil duct on two fork-type arms to lubricate valve rod end and cam end.
2. engine roller rocking arm according to claim 1, it is characterised in that:The roller (4) and rocker body are opened It is stifled (7) provided with rocking arm oil between on the inside of shelves bearing hole.
3. engine roller rocking arm according to claim 1, it is characterised in that:Oil duct in the fork-type arm is close to gas Steel ball (2) is provided with one end of door.
4. engine roller rocking arm according to claim 1, it is characterised in that:The interlude is linear pattern.
CN201611193065.8A 2016-12-21 2016-12-21 A kind of engine roller rocking arm Active CN107060932B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611193065.8A CN107060932B (en) 2016-12-21 2016-12-21 A kind of engine roller rocking arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611193065.8A CN107060932B (en) 2016-12-21 2016-12-21 A kind of engine roller rocking arm

Publications (2)

Publication Number Publication Date
CN107060932A true CN107060932A (en) 2017-08-18
CN107060932B CN107060932B (en) 2018-11-02

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CN201611193065.8A Active CN107060932B (en) 2016-12-21 2016-12-21 A kind of engine roller rocking arm

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111212960A (en) * 2017-10-13 2020-05-29 戴姆勒股份公司 Valve train for an internal combustion engine of a motor vehicle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4913104A (en) * 1988-11-30 1990-04-03 Henley Manufacturing Corporation Rocker arm for operating two valves
CN101410592A (en) * 2006-03-31 2009-04-15 日本精工株式会社 Cam follower device
CN201310389Y (en) * 2008-11-07 2009-09-16 浙江新柴股份有限公司 Valve driving device of four-valve diesel engine
CN103046977A (en) * 2012-12-20 2013-04-17 中国兵器工业集团第七0研究所 Special-shaped swing arm
CN203335157U (en) * 2013-07-22 2013-12-11 中国重汽集团济南动力有限公司 Valve rocker assembly of valve train with overhead cam
CN104088680A (en) * 2014-06-22 2014-10-08 中国北方发动机研究所(天津) Frame rocker
CN104696036A (en) * 2015-01-15 2015-06-10 东风朝阳朝柴动力有限公司 Engine rocker capable of lubricating valve clearance
CN105275528A (en) * 2014-07-15 2016-01-27 雅各布斯车辆系统公司 Lost motion valve actuation systems with locking elements including wedge locking elements

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4913104A (en) * 1988-11-30 1990-04-03 Henley Manufacturing Corporation Rocker arm for operating two valves
CN101410592A (en) * 2006-03-31 2009-04-15 日本精工株式会社 Cam follower device
CN201310389Y (en) * 2008-11-07 2009-09-16 浙江新柴股份有限公司 Valve driving device of four-valve diesel engine
CN103046977A (en) * 2012-12-20 2013-04-17 中国兵器工业集团第七0研究所 Special-shaped swing arm
CN203335157U (en) * 2013-07-22 2013-12-11 中国重汽集团济南动力有限公司 Valve rocker assembly of valve train with overhead cam
CN104088680A (en) * 2014-06-22 2014-10-08 中国北方发动机研究所(天津) Frame rocker
CN105275528A (en) * 2014-07-15 2016-01-27 雅各布斯车辆系统公司 Lost motion valve actuation systems with locking elements including wedge locking elements
CN104696036A (en) * 2015-01-15 2015-06-10 东风朝阳朝柴动力有限公司 Engine rocker capable of lubricating valve clearance

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111212960A (en) * 2017-10-13 2020-05-29 戴姆勒股份公司 Valve train for an internal combustion engine of a motor vehicle
CN111212960B (en) * 2017-10-13 2022-03-01 戴姆勒股份公司 Valve train for an internal combustion engine of a motor vehicle

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