CN101566081B - Valve rocker of valve mechanism of internal combustion engine - Google Patents
Valve rocker of valve mechanism of internal combustion engine Download PDFInfo
- Publication number
- CN101566081B CN101566081B CN 200810095923 CN200810095923A CN101566081B CN 101566081 B CN101566081 B CN 101566081B CN 200810095923 CN200810095923 CN 200810095923 CN 200810095923 A CN200810095923 A CN 200810095923A CN 101566081 B CN101566081 B CN 101566081B
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- valve
- section
- dividing plate
- side wall
- sidewall
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Abstract
The invention relates to a valve rocker (1) comprising a crank-shaped rocker body (2), a contact surface (6), a valve opening tapping surface (8) and a bearing part (12). The crank-shaped rocker body (2) is formed by deforming a plate; the contact surface (6) is arranged on the first end section (3) of the crank-shaped rocker body (2) and used for operating the air changing valve opening; the valve opening tapping surface (8) is arranged on the second end section of the crank-shaped rocker body (2); the bearing part (12) is arranged on the middle section of the crank-shaped rocker body (2) andused for bearing the valve rocker (1) on a valve rocker shaft; the middle section of the crank-shaped rocker body (2) is provided with a double-U shaped cross section; the double-U shaped cross secti on is provided with two cross section sections which are axially arranged in parallel on the bearing part (12) and are opened opposite to each other; and the double-U shaped cross section comprises a first side wall (13), a second side wall (14) and a shared division plate (15).
Description
Technical field
The present invention relates to a kind of valve rock arm of internal combustion valve mechanism, have one by sheet deformation and vertically go up valve opening minute junction on the surface of contact that is used for operation scavenging air valve valve opening on rectangular rocker body that crank-like consists of, first end section that is arranged on rocker body, second end section that is arranged on rocker body and intermediate section that is arranged on rocker body on be used for the valve rock arm rotation motion be bearing in bearing portion on rocker shaft.
Background technique
This have one by sheet deformation and vertically the valve rock arm of the rectangular rocker body that consists of of upper crank-like have disclosed by DE 10 2,005 046 897 A1 that classification consists of.The known valve rock arm that refers to moulding on a kind of kinology relevant to rocker shaft of concept crank-like, wherein the first end section of valve rock arm and the second end section have the median surface of skew each other, the perpendicular distribution of valve rock arm.The scavenging air valve vertical misalignment by valve mechanism structure once in a while predesignated relevant to rocker shaft with valve opening minute junction followed in this moulding.This valve mechanism structure example is as known with the tappet valve mechanism that adopts lower arranging cam axle, and wherein the valve opening of valve rock arm divides junction to consist of as the globular hinge axle sleeve of tappet.This valve mechanism structure is also known with the small displacement internal-combustion engine that is used for two-wheel drive automobile or minicar in addition, and wherein valve opening minute junction also can be used as the roller formation without friction tap OHC.
The rocker body of the valve rock arm that proposes in the document that beginning is quoted has the cross section of channel section basically by its longitudinal extension, but its crank-like due to rocker body is born oblique bending.In machinery/strength theory the implication of concept oblique bending commonly used known be the distortion of parts under load condition, wherein, the load plane of bending moment does not match with principal axis of inertia by the part cross section center of gravity.In the valve rock arm situation of general high load, this part distortion causes the unallowed high flexion torsion of one or two end sections of rocker body simultaneously, and particularly because the supporting of the seamed edge on surface of contact and/or valve opening minute junction causes excessive material extruding.
Another shortcoming of the valve rock arm that proposes in the document of quoting relates to the high degree of deformation of rocker body, and it not only causes the U-shaped distortion on cross section, and also must cause S or the Z-shaped distortion of crank-like on the longitudinal section simultaneously.
Summary of the invention
Therefore purpose of the present invention is, these shortcomings of avoiding introducing are also therefore to the so further formation of the valve rock arm that starts alleged type, make valve rock arm also have on the one hand enough moulding stability under high operating load, and distortion spending that on the other hand can be suitable and process is made reliably.
This purpose is achieved by the feature of claim 1 according to the present invention, and the advantageous further formation of tool of the present invention and formation can be consulted dependent claims.The rocker body section that has dual U-shaped on a cross section in the zone of section therebetween accordingly, this end face with two bearing portion axially on side by side and the section section of relatively opening wide.This section section comprise a first side wall, second sidewall and is connected a shared dividing plate and one is connected the first side wall with dividing plate the first cross bar with is connected the second cross bar that the second sidewall is connected with dividing plate.In this regard, the first end section forms by the first side wall and dividing plate and the second end section forms by the second sidewall and dividing plate.
Therefore central idea of the present invention relates to the dual U-shaped section on the rocker body cross section, and its moulding is equivalent to two lever segments of non-crank-like basically, and it merges in the zone of dividing plate mutually.Due to this moulding, even divide under the high load of useful extrusion ratio on junction at surface of contact and valve opening, the undesired effect that also beginning of rocker body oblique bending can be mentioned drops to bottom line or eliminates fully.
As the embodiment of the present invention of introducing later also show, rocker body is on the process that can remain on according to the relevant degree of deformation of moulding of the present invention is reliable low-level.
In further formation of the present invention, the first cross bar or the second cross bar or both have the space of window type in the zone of bearing portion.The space of window type is mainly used in reducing the valve rock arm quality useful to valve mechanism, and on the not obviously impact of its rigidity.
Valve rock arm is useful, namely low quality particularly also can realize thus, be that the first side wall extends between first end section and bearing portion, the second sidewall is extending between the second end section and bearing portion and dividing plate extends between first end section and the second end section like this, and the longitudinal extension that makes dividing plate is obviously greater than longitudinal extension and the obvious longitudinal extension greater than the second sidewall of the first side wall.Valve rock arm produces in plan view thus Z-shapedly describes by the embodiment who introduces later of the present invention equally.
As hold the selection of the rocker body at place to having the surface of contact hydraulic valve backlash compensation spare of automatically adjusting again as scavenging air valve, the first end section that has in addition the rocker body of the first side wall, dividing plate and the first cross bar can have the section of U-shaped on cross section, wherein, be distributed in the end face of the valve clearance adjusting bolt that passes the first cross bar for the surface of contact of operation scavenging air valve valve opening.
In this regard, simple structure and cheaply mode of execution produce thus, that is, valve clearance adjusting bolt screws in the first cross bar and by being arranged between the first side wall and dividing plate and the locking nut of end surface supporting on the first cross bar prevent reversing and fixed.Particularly in the situation that the situation of locking nut and when adjusting valve clearance adjusting bolt for this reason required instrument discharge, according to purpose, the channel section of rocker body first end section seals to scavenging air valve.
In further formation of the present invention, valve opening divides junction, and the roller on bolt consists of by rolling element bearing selectively without friction tap cam as being used for, wherein, the second sidewall and dividing plate be divided into two-part ring embedding roller and bolt mutually to the bolt hole internal support at center on the second sidewall and dividing plate.
In addition, bearing portion consists of as cylindrical sleeve, and this sleeve utilizes its internal surface to be distributed in the gap of the first side wall, dividing plate and the second sidewall around rocker shaft and outer surface thereof.In this regard, sleeve at least with the first side wall be connected gap strength, moulding or the material of sidewall and reasonably be connected.Particularly in the situation that the welding of sleeve and rocker body, if hinder the instrument contact of soldering appliance, as long as sleeve is connected with the first and second sidewalls enough firmly, just can cancel being connected of sleeve and dividing plate.
As the selection to the bearing portion of such formation, on the one hand can each comfortable sidewall and dividing plate between have a dividing busing that is enclosed within on sleeve, be used for making rocker body bearing portion axially on moulding stable.Aspect the sleeve moulding reasonably was fixed on rocker body, the possibility of existence was, sleeve at one end or have circular groove on two ends, the inside thrust ring of axially mounting on rocker body of packing into.In the situation that only have thrust ring, the other end of sleeve can have one and extend radially outwardly and the same circular groove of axially mounting on rocker body.
But as to separating the selection of the sleeve made from rocker body, then bearing portion also can be used as whole from sidewall and when needing the bearing hole of moulding from dividing plate consist of.
At last, be the lubrication and cooling roller, sleeve can have a hydraulic oil nozzle opening of aiming at roller.According to purpose, the hydraulic oil supply is carried out with the cross-drilled hole that is arranged in this rocker shaft and be communicated with nozzle opening in a suitable manner by the hydraulic oil vertical passage of rocker shaft inside in this regard.
Description of drawings
Other features of the present invention illustrate the accompanying drawing of the embodiment of the present invention from following explanation and simplification.Wherein:
Fig. 1 illustrates the perspective view that is tilted to according to valve rock arm of the present invention;
Fig. 2 illustrates the perspective exploded view of Fig. 1 valve rock arm; And
Fig. 3 illustrates the cross section I-I according to Fig. 1.
Embodiment
Fig. 1 and 2 illustrates the valve rock arm 1 of an internal combustion valve mechanism with installment state or exploded view.Valve rock arm 1 comprises the rectangular rocker body 2 by sheet deformation, and it is with first end section 3, the second end section 4 and intermediate section 5.Be arranged on first end section 3 and be distributed in an end face that screws in the valve clearance adjusting bolt 7 in rocker body 2 for the surface of contact 6 that operates unshowned scavenging air valve valve opening.Be arranged on that valve opening minute junction 8 on the second end section 4 constitutes by needle roller group 10 here and raceway is bearing in the roller 11 on bolt 9, be used for the cam of a same unshowned camshaft of tap.For valve rock arm 1 can be bearing in to rotation motion on a same unshowned rocker shaft, use a bearing portion that is arranged on intermediate section 5, it here consists of as cylindrical sleeve 12 and utilizes its internal surface around rocker shaft.
Can clearly be seen that, valve rock arm 1 crank-like consists of, method be with the imaginary median surface of the longitudinal axis vertical orientation of sleeve 12 by valve clearance adjusting bolt 7 and roller 11 each other at a distance of distributing.As reference Fig. 3 see, the section that rocker body 2 has dual U-shaped on a cross section in section 5 zone therebetween for producing this crank-like, its by two sleeve 12 axially on side by side section section form, wherein, section section single U-shaped separately consists of and is relatively unlimited.The dual U-shaped section on the gyratory directions of valve rock arm 1 by a first side wall 13, second sidewall 14 and is connected that a shared dividing plate 15 forms and the first cross bar 16 of laterally by one, the first side wall 13 being connected with dividing plate 15 with the gyratory directions of valve rock arm 1 with is connected second cross bar 17 that the second sidewall 14 is connected with dividing plate 15 and forms.In addition, rocker body 2 is Z-shaped formation in plan view, method is that the first side wall 13 is only extending between first end section 3 and bearing portion 12 and the only extension between the second end section 4 and bearing portion 12 of the second sidewall 14, and dividing plate 15 is distributed to the second end section 4 always and therefore obviously is longer than the first side wall 13 and the second sidewall 14 from first end section 3.
The first end section 3 that forms by the first side wall 13, dividing plate 15 and the first cross bar 16 has the channel section that seals to scavenging air valve on a cross section, wherein, valve clearance adjusting bolt 7 screw in a screw 18 that distributes by the first cross bar 16 and utilize locking nut 19 anti-reverse fixing.Locking nut 19 be arranged between the first side wall 13 and dividing plate 15 and end surface supporting on the first cross bar 16.Wrench faces for locking valve clearance adjusting bolt 7 and locking nut 19 use employing 20 or 21 marks.
The second end section 4 forms by the second sidewall 14 and dividing plate 15, and their minute two-part ring embedding rollers 11 also have each other the bolt hole 22 at center, and the inside bolt 9 is also for example fixed by the end face punching press.
As seeing from Fig. 3, sleeve 12 utilize its outer surface to be distributed to the first side wall 13, dividing plate 15 and be connected the gap 23 of sidewall 14, all connect and be fixed in all three gaps 23,24 and 25 by horizontal pressure in 24 or 25 and in this embodiment.As to this selection and the professional workforce is known that sleeve 12 is fixed on possibility on rocker body 2, beginning proposes in unclosed mode.
Can find out in addition the nozzle opening 26 of a processing on sleeve 12 from Fig. 2 and 3, it is aimed at roller 11 it is lubricated with cooling and be communicated with a respective radial holes on the rocker shaft of conveying liquid force feed.
The as far as possible little quality of valve rock arm 1 realizes by the window type on rocker body 2 and space 27 that have long hole shape here and 28 at last, and it had both been processed in the zone of bearing portion 12 at (referring to Fig. 3) on the first cross bar 16 and has also processed on the second cross bar 17.
Reference character
1 valve rock arm
2 rocker bodies
3 first end sections
4 second end sections
5 intermediate sections
6 surface of contact
7 valve clearance adjusting bolts
8 valve openings divide junction
9 bolts
10 needle roller groups
11 rollers
12 bearing portions, sleeve
13 the first side walls
14 second sidewalls
15 dividing plates
16 first cross bars
17 second cross bars
18 screws
19 locking nuts
20 wrench faces
21 wrench faces
22 bolts hole
The gap of 23 the first side walls
The gap of 24 dividing plates
The gap of 25 second sidewalls
26 nozzle openings
Space on 27 first cross bars
Space on 28 second cross bars
Claims (9)
1. the valve rock arm of internal combustion valve mechanism (1) has: by sheet deformation and the rectangular rocker body (2) that consists of of crank-like in the vertical, be arranged on the surface of contact (6) on the first end section (3) of rocker body (2), be used for operation scavenging air valve valve opening, be arranged on the valve opening minute junction (8) on the second end section (4) of rocker body (2), with the bearing portion (12) on the intermediate section that is arranged on rocker body (2) (5), be used for valve rock arm (1) rotation motion be bearing in rocker shaft, it is characterized in that, described rocker body (2) therebetween the section (5) the zone in have dual U-shaped on a cross section section, this section with two described bearing portion (12) axially on side by side and the section section of relatively opening wide, this section section comprises the first side wall (13), the second sidewall (14) is with the dividing plate that is connected (15) and with described the first side wall (13) the first cross bar (16) that is connected with described dividing plate (15) and the second cross bar (17) that described the second sidewall (14) is connected with described dividing plate (15), wherein, described first end section (3) forms by described the first side wall (13) and described dividing plate (15), and wherein said the second end section (4) forms by described the second sidewall (14) and described dividing plate (15).
2. by valve rock arm claimed in claim 1 (1), it is characterized in that, the first cross bar (16) has the space (27) of a window type and/or the second cross bar (17) has a window type in the zone of bearing portion (12) space (28) in the zone of bearing portion (12).
3. by valve rock arm claimed in claim 1 (1), it is characterized in that, the first side wall (13) extends between first end section (3) and bearing portion (12), the second sidewall (14) extends between the second end section (4) and bearing portion (12), and dividing plate (15) extends between first end section (3) and the second end section (4) like this, and the longitudinal extension that makes dividing plate (15) is obviously greater than the longitudinal extension of the first side wall (13) and obviously greater than the longitudinal extension of the second sidewall (14).
4. by valve rock arm claimed in claim 1 (1), it is characterized in that, first end section (3) with rocker body (2) of the first side wall (13), dividing plate (15) and the first cross bar (16) has the section of U-shaped on cross section, wherein, be distributed in the end face of the valve clearance adjusting bolt (7) that passes the first cross bar (16) for the surface of contact (6) of operation scavenging air valve valve opening.
5. by valve rock arm claimed in claim 4 (1), it is characterized in that, valve clearance adjusting bolt (7) screws in the first cross bar (16) and by being arranged between the first side wall (13) and dividing plate (15) and anti-torsion of the locking nut (19) of end surface supporting on the first cross bar (16) fixed.
6. by valve rock arm claimed in claim 4 (1), it is characterized in that, the channel section of rocker body (2) first end section (3) seals to scavenging air valve.
7. by valve rock arm claimed in claim 1 (1), it is characterized in that, valve opening minute junction (8) constitutes selectively by rolling element (10) and is bearing in roller (11) on bolt (9), be used for the tap cam, wherein, the second sidewall (14) and dividing plate (15) be divided into two-part ring embedding roller (11) and bolt (9) mutually to bolt hole (22) internal support at center on the second sidewall (14) and dividing plate (15).
8. by valve rock arm claimed in claim 1 (1), it is characterized in that, bearing portion (12) consists of as cylindrical sleeve, this sleeve utilizes its internal surface to be distributed in the gap (23,24,25) of the first side wall (13), dividing plate (15) and the second sidewall (14) around rocker shaft and outer surface thereof, wherein, sleeve (12) at least with the first side wall (13) be connected the gap (23,25) of sidewall (14) and be connected securely.
9. by valve rock arm claimed in claim 7 (1), it is characterized in that, bearing portion (12) consists of as cylindrical sleeve, this sleeve utilizes its internal surface to be distributed in the first side wall (13) around rocker shaft and outer surface thereof, the gap (23 of dividing plate (15) and the second sidewall (14), 24,25) in, wherein, sleeve (12) at least with the gap (23 of the first side wall (13) and the second sidewall (14), 25) connect securely, sleeve (12) has a hydraulic oil nozzle opening (26) of aiming at roller (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810095923 CN101566081B (en) | 2008-04-25 | 2008-04-25 | Valve rocker of valve mechanism of internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810095923 CN101566081B (en) | 2008-04-25 | 2008-04-25 | Valve rocker of valve mechanism of internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101566081A CN101566081A (en) | 2009-10-28 |
| CN101566081B true CN101566081B (en) | 2013-06-12 |
Family
ID=41282421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810095923 Expired - Fee Related CN101566081B (en) | 2008-04-25 | 2008-04-25 | Valve rocker of valve mechanism of internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101566081B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102010011828A1 (en) * | 2010-03-18 | 2011-09-22 | Schaeffler Technologies Gmbh & Co. Kg | Switchable lever for a valve train of an internal combustion engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1263980A (en) * | 1999-02-19 | 2000-08-23 | Ina滚动轴承谢夫勒无限责任公司 | Rocker arm of internal-combustion engine valve mechanism |
| DE102005046897A1 (en) * | 2005-09-30 | 2007-04-05 | Schaeffler Kg | Rocker arm of valve train assembly of internal combustion engine has thin walled steel sheet wherein rocker arm is hollow at end of cross beam, whereby end walls are substantially parallel in range to each other |
| CN1975117A (en) * | 2005-11-21 | 2007-06-06 | 通用汽车环球科技运作公司 | Two-step rocker arm having roller element cam followers |
-
2008
- 2008-04-25 CN CN 200810095923 patent/CN101566081B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1263980A (en) * | 1999-02-19 | 2000-08-23 | Ina滚动轴承谢夫勒无限责任公司 | Rocker arm of internal-combustion engine valve mechanism |
| DE102005046897A1 (en) * | 2005-09-30 | 2007-04-05 | Schaeffler Kg | Rocker arm of valve train assembly of internal combustion engine has thin walled steel sheet wherein rocker arm is hollow at end of cross beam, whereby end walls are substantially parallel in range to each other |
| CN1975117A (en) * | 2005-11-21 | 2007-06-06 | 通用汽车环球科技运作公司 | Two-step rocker arm having roller element cam followers |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101566081A (en) | 2009-10-28 |
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Owner name: SCHAEFFLER KG Free format text: FORMER OWNER: FAG KUGELFISCHER AG + CO. OHG Effective date: 20100914 |
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Owner name: SCHAEFFLER FIFTH INVESTMENT MANAGEMENT GMBH + CO., Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH + CO. KG Effective date: 20150724 |
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Owner name: SCHAEFFLER TECHNOLOGY GMBH + CO. KG Free format text: FORMER NAME: SCHAEFFLER TECHNOLOGIES GMBH + CO. KG Owner name: SCHAEFFLER TECHNOLOGIES GMBH + CO. KG Free format text: FORMER NAME: SCHAEFFLER FIFTH INVESTMENT MANAGEMENT GMBH + CO., KG |
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Address after: German Herzogenaurach Patentee after: SCHAEFFLER TECHNOLOGIES AG & CO. KG Address before: German Herzogenaurach Patentee before: SCHAEFFLER TECHNOLOGIES GmbH & Co.KG Address after: German Herzogenaurach Patentee after: SCHAEFFLER TECHNOLOGIES GmbH & Co.KG Address before: German Herzogenaurach Patentee before: Fifth Schaeffler investment management GmbH & Co.KG |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20190425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |