CN103925033B - Swing arm adjusting bracket - Google Patents
Swing arm adjusting bracket Download PDFInfo
- Publication number
- CN103925033B CN103925033B CN201310014506.3A CN201310014506A CN103925033B CN 103925033 B CN103925033 B CN 103925033B CN 201310014506 A CN201310014506 A CN 201310014506A CN 103925033 B CN103925033 B CN 103925033B
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- swing arm
- adjusting bracket
- arm adjusting
- bracket body
- drive division
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Abstract
The invention provides a swing arm adjusting bracket, relates to a vehicle engine component, and aims at providing a mechanism which can change positions of a swing arm drive center. The swing arm adjusting bracket continuously changes positions of the working face of a swing arm, and thereby enables the lift range of an air valve to be continuously adjustable. According to the swing arm adjusting bracket, a rotation portion, a drive portion and a notch are arranged on the body of the swing arm adjusting bracket, the notch is used to connect the swing arm adjusting bracket with a power drive device and enables the power drive device to drive the body of the swing arm adjusting bracket to rotate around the rotation portion together with the drive portion, the drive portion is connected with the swing arm in moving mode, and then the swing arm is driven to rotate when the body of the swing arm adjusting bracket and the drive portion rotate together around the rotation portion, and therefore the positions of the swing arm drive center are changed, the positions of the working face of the swing arm is continuously changed, and the lift range of the air valve is continuously adjustable.
Description
Technical field
The present invention relates to engine components, more particularly, to a kind of swing arm adjusting bracket.
Background technology
Valve is one of electromotor vitals, for inputting fuel into electromotor and discharging useless after burning
Gas.In engine art, valve stroke refers to valve and fully opens moved height from being just opened to, that is, gas
The Lift of door.
Lift range variable technology (Variable Valve Lift, referred to as：VVL) can be according to the difference of electromotor
Operating mode changes its valve stroke, makes electromotor can obtain good response in high velocity and low regime, thus improving electromotor
High-speed power and low speed torque.Existing lift range variable technology can be divided into section variable valve liter according to its control effect
Journey and continuously variable valve lift.Compared with section variable valve stroke, continuously variable valve lift can preferably coordinate to be sent out
The combustion system of motivation, has certain superiority.
In existing valve lift driving device, generally pass through the actuated by cams swing arm on camshaft, make swing arm around driving
Pivot, so that the work surface in swing arm drives valve rocker, realizes the unlatching of valve.Can in order to realize valve stroke
Become it is necessary to provide a kind of mechanism that can change swing arm driving center, so that the work surface position of swing arm is continuously sent out
Raw change, so that the lift continuously adjustabe of valve.
Content of the invention
The embodiment of the present invention provides a kind of swing arm adjusting bracket, to provide a kind of machine that can change swing arm driving center
Structure, makes the work surface position of swing arm recur change, so that the lift continuously adjustabe of valve.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that：
The embodiment of the present invention provides a kind of swing arm adjusting bracket, for adjusting swing arm, including swing arm adjusting bracket body, described pendulum
Arm adjusting bracket body is provided with rotation section, drive division and gap；Described drive division is flexibly connected with described swing arm, so that described pendulum
Arm swings around the central shaft of described drive division；Described gap is used for connecting Power Drive Unit；Described Power Drive Unit is used for
Described swing arm adjusting bracket body is driven to rotate around described rotation section together with described drive division.
Preferably, described swing arm is provided with roller bearing, is arranged with roller thereon, for the cam contact with camshaft, described
Roller bearing is arranged with the central axis of described rotation section.
Further, described rotation section includes the first through hole being located on described swing arm adjusting bracket body and is located at described
Fixing axle in one through hole；Described drive division includes the second through hole being located on described swing arm adjusting bracket body and is located at described
Rotary shaft in two through holes, described swing arm is set in described rotary shaft.
Preferably, described rotary shaft is provided with back-moving spring, and described back-moving spring one end is fixedly connected described swing arm and adjusts
Section frame body, the other end is used for being fixedly connected described swing arm.
Further, described rotary shaft is multidiameter, and is provided with the annular slotted of fixing limit spring piece in end, described
Limit spring piece is used for described swing arm is limited between described annular slotted and described swing arm adjusting bracket body.
Preferably, described Power Drive Unit includes eccentric shaft, the regulation turbine being located at eccentric shaft one end and adjusts turbine
The worm screw of engagement and the servomotor being fixedly connected with worm screw.
Further, described gap is U-shaped gap, the eccentric on the surface of described U-shaped gap and described eccentric shaft
Surface engagement；The diameter of the arch section of described U-shaped gap is equal to the diameter of eccentric on described eccentric shaft.
In swing arm adjusting bracket provided in an embodiment of the present invention, due to rotation section, drive being provided with the body of swing arm adjusting bracket
Dynamic portion and gap, gap is used for connecting Power Drive Unit, makes Power Drive Unit drive swing arm adjusting bracket body and drive division
Rotate around rotation section together, and drive division is flexibly connected with swing arm, makes swing arm adjusting bracket body around rotation section together with drive division
During rotation, driving swing arm to rotate, thus changing the position that center is driven on swing arm, so that the work surface position of swing arm is recurred
Change, so that the lift continuously adjustabe of valve.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to required use in embodiment description
Accompanying drawing be briefly described.
Fig. 1 is a kind of structural representation of swing arm adjusting bracket provided in an embodiment of the present invention；
Fig. 2 is the structural representation of another kind swing arm adjusting bracket provided in an embodiment of the present invention；
Fig. 3 is bearing block structure schematic diagram provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram that swing arm adjusting bracket provided in an embodiment of the present invention drives swing arm.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.
The embodiment of the present invention provides a kind of swing arm adjusting bracket, for adjusting swing arm, as shown in figure 1, including swing arm adjusting bracket
Body 11, swing arm adjusting bracket body 11 is provided with rotation section 12, drive division 13 and gap 14；Drive division 13 is with swing arm activity even
Connect, so that swing arm swings around the central shaft of drive division 13；Gap 14 is used for connecting Power Drive Unit；Wherein, power drive dress
Put for driving swing arm adjusting bracket body 11 to rotate around rotation section 12 together with drive division 13.
In swing arm adjusting bracket provided in an embodiment of the present invention, due to rotation section, drive being provided with the body of swing arm adjusting bracket
Dynamic portion and gap, gap is used for connecting Power Drive Unit, makes Power Drive Unit drive swing arm adjusting bracket body and drive division
Rotate around rotation section together, and drive division is flexibly connected with swing arm, makes swing arm adjusting bracket body around rotation section together with drive division
During rotation, driving swing arm to rotate, thus changing the position that center is driven on swing arm, so that the work surface position of swing arm is recurred
Change, so that the lift continuously adjustabe of valve.
Above-described embodiment description swing arm adjusting bracket in, swing arm is provided with roller bearing, is arranged with roller thereon, for cam
The cam contact of axle, roller bearing is arranged with the central axis of rotation section.Therefore swing arm adjusting bracket body 11 rotates around rotating part
The angle that angle can be rotated around roller bearing with swing arm is consistent, when being adjusted to the driving center of swing arm using swing arm adjusting bracket
When whole, the calculating process of adjustment amount can be made to simplify, thus simplifying adjustment process.
In the swing arm adjusting bracket of above-described embodiment description, as shown in Fig. 2 rotation section 12 can include being located at swing arm adjusting bracket
First through hole on body 11 and be located at the fixing axle 21 in first through hole；Drive division 13 can include being located at swing arm adjusting bracket originally
The second through hole on body 11 and be located at rotary shaft 22 in the second through hole, swing arm is set in rotary shaft 22.Swing arm adjusting bracket is originally
Body 11 rotates around fixing axle 21 under Power Drive Unit driving, enables rotary shaft 22 to drive the pendulum being set in rotary shaft 22
Arm rotates.
Wherein, fixing axle 21 can be fixed on engine cylinder lid it is also possible to the other being fixed on engine cylinder lid is solid
Determine in support member, as shown in Figure 3, fixed support part can be bearing block 31, and the lower surface both sides of bearing block 31 are downward
Protrude out support 311, support 311 is provided with installing hole 312, and installing hole 312 has been connected with fixing axle.
In the swing arm adjusting bracket of above-described embodiment description, as shown in Fig. 2 back-moving spring 23 can be provided with rotary shaft 22,
And back-moving spring 23 one end is fixedly connected swing arm adjusting bracket body 11, the other end is used for being fixedly connected swing arm.Back-moving spring 23 1
End is fixedly connected with swing arm adjusting bracket body 11, and the other end is fixedly connected with swing arm, and in valve opening, back-moving spring 23 is with pendulum
Arm motion produces elastic potential energy, and this elastic potential can make back-moving spring 23 return to original state in valve-closing.
In the swing arm adjusting bracket of above-described embodiment description, as shown in Fig. 2 rotary shaft 22 can be multidiameter, and in end
The annular slotted 221 of fixing limit spring piece 222 can be provided with, limit spring piece 222 is used for for swing arm being limited in annular slotted
Between 221 and swing arm adjusting bracket body 11.Multidiameter structure and limit spring piece 222 are easy to dismounting and the fixation of swing arm.
Above-described embodiment description swing arm adjusting bracket in, as shown in figure 4, Power Drive Unit can include eccentric shaft 42,
Be located at eccentric shaft 42 one end adjusts worm screw 44 and the servo being fixedly connected with worm screw 44 that turbine 43 is engaged with regulation turbine 43
Motor 41.Servomotor 41 operates and drives worm screw 44 to rotate, and rotating of worm screw 44 drives the regulation engaged with worm screw 44 simultaneously
Turbine 43 rotates, and makes and adjusts the eccentric shaft 42 that turbine 43 is fixedly connected and rotate, thus carrying movable eccentric wheel 421 to rotate.
Above-described embodiment description swing arm adjusting bracket in, gap 14 can be U-shaped gap, the surface of U-shaped gap with bias
The surface engagement of the eccentric 421 on axle 42；The diameter of the arch section of U-shaped gap is equal to eccentric 421 on eccentric shaft 42
Diameter.U-shaped gap setting makes rotation in gap 14 for the eccentric 421 more smooth.
The operation principle of the swing arm adjusting bracket by Fig. 1 to Fig. 4, above-described embodiment being described below is described in detail.
Servomotor 41 operates and drives worm screw 44 to rotate, and rotating of worm screw 44 drives the regulation engaged with worm screw 44 simultaneously
Turbine 43 rotates, and makes and adjusts the eccentric shaft 42 that turbine 43 is fixedly connected and rotate, thus carrying movable eccentric wheel 421 to rotate.Eccentric shaft
Eccentric 421 surface on 42 and the surface engagement of the U-shaped gap on swing arm adjusting bracket body 11, make the rotation of eccentric 421
Swing arm adjusting bracket body 11 is driven to rotate around fixing axle 21, the rotation of swing arm adjusting bracket body 11 drives and is located at swing arm adjusting bracket originally
Rotary shaft 22 at body 11 drive division 13 is rotated around fixing axle 21 together with swing arm adjusting bracket body 11, finally drives and is set in rotation
Swing arm 45 in rotating shaft 22 rotates.
There is upper limit position and (be located at apart from eccentric shaft 42 highest distance position on eccentric 421 periphery in eccentric 421 when rotating
Eccentric shaft 42 top, and the position being eccentric 421 during vertical state with the circle center line connecting of eccentric 421) and and upper limit position
Relative lower position, makes eccentric 421 drive swing arm adjusting bracket body 11 around fixing axle 21 back and forth movement when rotating, completes to put
Arm adjusting bracket drives the continuously adjustabe at center to swing arm 45.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can readily occur in, all answer
It is included within the scope of the present invention.Therefore, protection scope of the present invention with described scope of the claims should be
Accurate.
Claims (7)
1. a kind of swing arm adjusting bracket, for adjusting swing arm it is characterised in that including swing arm adjusting bracket body, described swing arm is adjusted
Frame body is provided with rotation section, drive division and gap；Described drive division is flexibly connected with described swing arm, so that described swing arm is around institute
The central shaft stating drive division swings；Described gap is used for connecting Power Drive Unit；Described Power Drive Unit is used for driving institute
State swing arm adjusting bracket body to rotate around described rotation section together with described drive division；
The work surface of described swing arm is contacted with valve rocker, and the opening and closing driving valve rocker to control valve is passed through in described swing arm.
2. swing arm adjusting bracket according to claim 1, it is characterised in that described swing arm is provided with roller bearing, is arranged with thereon
Roller, for the cam contact with camshaft, described roller bearing is arranged with the central axis of described rotation section.
3. swing arm adjusting bracket according to claim 1 and 2 is it is characterised in that described rotation section includes being located at described swing arm
First through hole on adjusting bracket body and be located at the fixing axle in described first through hole；Described drive division includes being located at described swing arm
The second through hole on adjusting bracket body and be located at rotary shaft in described second through hole, described swing arm is set in described rotary shaft
On.
4. swing arm adjusting bracket according to claim 3 is it is characterised in that described rotary shaft is provided with back-moving spring, and institute
State back-moving spring one end and be fixedly connected described swing arm adjusting bracket body, the other end is used for being fixedly connected described swing arm.
5. swing arm adjusting bracket according to claim 3, it is characterised in that described rotary shaft is multidiameter, and sets in end
There is the annular slotted of fixing limit spring piece, described limit spring piece is used for for described swing arm being limited in described annular slotted and institute
State between swing arm adjusting bracket body.
6. swing arm adjusting bracket according to claim 1 is it is characterised in that described Power Drive Unit includes eccentric shaft, sets
Adjust turbine in eccentric shaft one end and the servomotor adjusting the worm screw that engages of turbine and be fixedly connected with worm screw.
7. swing arm adjusting bracket according to claim 6 it is characterised in that described gap be U-shaped gap, described U-shaped gap
Surface and described eccentric shaft on eccentric surface engagement；The diameter of the arch section of described U-shaped gap is equal to described inclined
The diameter of eccentric on heart axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310014506.3A CN103925033B (en) | 2013-01-15 | 2013-01-15 | Swing arm adjusting bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310014506.3A CN103925033B (en) | 2013-01-15 | 2013-01-15 | Swing arm adjusting bracket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103925033A CN103925033A (en) | 2014-07-16 |
| CN103925033B true CN103925033B (en) | 2017-02-08 |
Family
ID=51143394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310014506.3A Active CN103925033B (en) | 2013-01-15 | 2013-01-15 | Swing arm adjusting bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103925033B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323602B (en) * | 2015-06-23 | 2018-05-29 | 株洲时代新材料科技股份有限公司 | Pendulum arm length regulating device and paired air spring torsion fatigue test device |
| CN107009393A (en) * | 2017-04-26 | 2017-08-04 | 广东仕诚塑料机械有限公司 | One kind cutting pendulous device and its swinging method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19960742B4 (en) * | 1999-12-16 | 2006-09-28 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Variable valve train, preferably for internal combustion engines |
| JP2007127117A (en) * | 2005-10-04 | 2007-05-24 | Masaaki Yoshikawa | Valve system apparatus for four-stroke internal combustion engine |
| JP4226607B2 (en) * | 2006-02-22 | 2009-02-18 | 本田技研工業株式会社 | Default device for actuator for variable valve mechanism |
| EP1873362B1 (en) * | 2006-06-27 | 2010-02-17 | Otics Corporation | Variable valve mechanism |
| ITMI20070443A1 (en) * | 2007-03-05 | 2008-09-06 | Piaggio & C Spa | SYSTEM FOR THE CONTINUOUS VARIATION OF THE VALVE AND STAGE OF THE VALVES IN AN INTERNAL COMBUSTION ENGINE |
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2013
- 2013-01-15 CN CN201310014506.3A patent/CN103925033B/en active Active
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| Publication number | Publication date |
|---|---|
| CN103925033A (en) | 2014-07-16 |
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