CN103925033A - Swing arm adjusting bracket - Google Patents
Swing arm adjusting bracket Download PDFInfo
- Publication number
- CN103925033A CN103925033A CN201310014506.3A CN201310014506A CN103925033A CN 103925033 A CN103925033 A CN 103925033A CN 201310014506 A CN201310014506 A CN 201310014506A CN 103925033 A CN103925033 A CN 103925033A
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- China
- Prior art keywords
- swing arm
- regualting frame
- frame body
- shaft
- drive portion
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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, relate in particular to a kind of swing arm regualting frame.
Background technique
Valve is a vitals in motor, for inputting fuel and discharge the waste gas after burning in motor.In engine art, valve lift refers to valve and opens moved height completely from being just opened to, namely the Lift of valve.
Lift range variable technology (Variable Valve Lift, referred to as: VVL) can change its valve lift according to the different operating modes of motor, make motor can obtain good response in high velocity and low velocity zone, thereby improve high-speed power and the low speed torque of motor.Existing lift range variable technology is controlled effect according to it can be divided into section variable valve lift and continuously variable valve lift.Compare with section variable valve lift, continuously variable valve lift can coordinate the combustion system of motor better, has certain superiority.
In existing valve lift driving device, conventionally by the actuated by cams swing arm on camshaft, swing arm is swung around driving center, thereby make the working surface in swing arm drive valve rocker, realize the unlatching of valve.In order to realize the variable of valve lift, a kind of mechanism that can change swing arm driving central position just need to be provided, make the working surface position of swing arm can recur change, so that the lift of valve is adjustable continuously.
Summary of the invention
The embodiment of the present invention provides a kind of swing arm regualting frame, so that a kind of mechanism that can change swing arm driving central position to be provided, makes the working surface position of swing arm recur change, so that the lift of valve is adjustable continuously.
For achieving the above object, embodiments of the invention adopt following technological scheme:
The embodiment of the present invention provides a kind of swing arm regualting frame, for regulating swing arm, comprises swing arm regualting frame body, and described swing arm regualting frame body is provided with rotation section, drive portion and gap; Described drive portion is flexibly connected with described swing arm, so that described swing arm swings around the central shaft of described drive portion; Described gap is used for connecting Power Drive Unit; Described Power Drive Unit is used for driving described swing arm regualting frame body around described rotation section, to rotate together with described drive portion.
Preferably, described swing arm is provided with roller bearing, is arranged with roller on it, and for contacting with the cam of camshaft, the central shaft of described roller bearing and described rotation section coaxially arranges.
Further, described rotation section comprises and is located at the first through hole on described swing arm regualting frame body and is located at the stationary axle in described the first through hole; Described drive portion comprises and is located at the second through hole on described swing arm regualting frame body and is located at the running shaft in described the second through hole, and described swing arm is set on described running shaft.
Preferably, described running shaft is provided with Returnning spring, and described Returnning spring one end is fixedly connected with described swing arm regualting frame body, and the other end is used for being fixedly connected with described swing arm.
Further, described running shaft is multidiameter shaft, and in end, is provided with the fixedly annular slotted of limit spring sheet, and described limit spring sheet is for being limited in described swing arm between described annular slotted and described swing arm regualting frame body.
Preferably, described Power Drive Unit comprises eccentric shaft, is located at the adjusting turbine of eccentric shaft one end, the worm screw meshing with adjusting turbine and the actuating motor being fixedly connected with worm screw.
Further, described gap is U-shaped gap, the eccentric surface engagement on the surface of described U-shaped gap and described eccentric shaft; The diameter of the curved portion of described U-shaped gap equals eccentric diameter on described eccentric shaft.
In the swing arm regualting frame that the embodiment of the present invention provides, owing to being provided with rotation section, drive portion and gap on the body at swing arm regualting frame, gap is used for connecting Power Drive Unit, make Power Drive Unit drive swing arm regualting frame body around rotation section, to rotate together with drive portion, and drive portion is flexibly connected with swing arm, when swing arm regualting frame body is rotated around rotation section together with drive portion, drive swing arm is rotated, thereby changed the position that drives center in swing arm, make the working surface position of swing arm recur change, so that the lift of valve is adjustable continuously.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme of the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described.
The structural representation of a kind of swing arm regualting frame that Fig. 1 provides for the embodiment of the present invention;
The structural representation of the another kind of swing arm regualting frame that Fig. 2 provides for the embodiment of the present invention;
The bearing block structure schematic diagram that Fig. 3 provides for the embodiment of the present invention;
The swing arm regualting frame that Fig. 4 provides for the embodiment of the present invention drives the schematic diagram of swing arm.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is clearly and completely described.
The embodiment of the present invention provides a kind of swing arm regualting frame, for regulating swing arm, as shown in Figure 1, comprises swing arm regualting frame body 11, and swing arm regualting frame body 11 is provided with rotation section 12, drive portion 13 and gap 14; Drive portion 13 is flexibly connected with swing arm, so that swing arm swings around the central shaft of drive portion 13; Gap 14 is for connecting Power Drive Unit; Wherein, Power Drive Unit is used for driving 12 rotations around rotation section together with drive portion 13 of swing arm regualting frame body 11.
In the swing arm regualting frame that the embodiment of the present invention provides, owing to being provided with rotation section, drive portion and gap on the body at swing arm regualting frame, gap is used for connecting Power Drive Unit, make Power Drive Unit drive swing arm regualting frame body around rotation section, to rotate together with drive portion, and drive portion is flexibly connected with swing arm, when swing arm regualting frame body is rotated around rotation section together with drive portion, drive swing arm is rotated, thereby changed the position that drives center in swing arm, make the working surface position of swing arm recur change, so that the lift of valve is adjustable continuously.
In the swing arm regualting frame that above-described embodiment is described, swing arm is provided with roller bearing, is arranged with roller on it, and for contacting with the cam of camshaft, the central shaft of roller bearing and rotation section coaxially arranges.Therefore the angle that swing arm regualting frame body 11 rotates around rotary part can be consistent with the angle that swing arm is rotated around roller bearing, when using swing arm regualting frame to adjust the driving center of swing arm, can make the computational process of adjustment amount simplify, thereby simplify adjustment process.
In the swing arm regualting frame that above-described embodiment is described, as shown in Figure 2, rotation section 12 can comprise and is located at the first through hole on swing arm regualting frame body 11 and is located at the stationary axle 21 in the first through hole; Drive portion 13 can comprise and be located at the second through hole on swing arm regualting frame body 11 and be located at the running shaft 22 in the second through hole, and swing arm is set on running shaft 22.Swing arm regualting frame body 11 rotates around stationary axle 21 under Power Drive Unit drives, and the swing arm that running shaft 22 can be driven be set on running shaft 22 is rotated.
Wherein, stationary axle 21 can be fixed on engine cylinder and cover, also can be fixed on other fixed support part that engine cylinder covers, as shown in Figure 3, fixed support part can be bearing support 31, the lower surface both sides of bearing support 31 have protruded out support 311 downwards, and support 311 is provided with mounting hole 312, and mounting hole 312 is connected with stationary axle.
In the swing arm regualting frame that above-described embodiment is described, as shown in Figure 2, on running shaft 22, can be provided with Returnning spring 23, and Returnning spring 23 one end are fixedly connected with swing arm regualting frame body 11, the other end is used for being fixedly connected with swing arm.Returnning spring 23 one end are fixedly connected with swing arm regualting frame body 11, and the other end is fixedly connected with swing arm, and when valve opening, Returnning spring 23 produces elastic potential energy with swing arm campaign, and this elastic potential can make Returnning spring 23 get back to original state when valve-closing.
In the swing arm regualting frame that above-described embodiment is described, as shown in Figure 2, running shaft 22 can be multidiameter shaft, and in end, can be provided with the fixedly annular slotted 221 of limit spring sheet 222, and limit spring sheet 222 is for being limited in swing arm between annular slotted 221 and swing arm regualting frame body 11.Multidiameter shaft structure and limit spring sheet 222 are convenient to the dismounting of swing arm with fixing.
In the swing arm regualting frame that above-described embodiment is described, as shown in Figure 4, Power Drive Unit can comprise eccentric shaft 42, is located at the adjusting turbine 43 of eccentric shaft 42 one end, with the worm screw 44 that regulates turbine 43 to mesh and the actuating motor 41 being fixedly connected with worm screw 44.Actuating motor 41 operates and drives worm screw 44 to rotate, and the rotation of worm screw 44 simultaneously drives with the adjusting turbine 43 of worm screw 44 engagements and rotates, and make to rotate with the eccentric shaft 42 that regulates turbine 43 to be fixedly connected with, thereby band movable eccentric wheel 421 rotates.
In the swing arm regualting frame that above-described embodiment is described, gap 14 can be U-shaped gap, the surface engagement of the eccentric wheel 421 on the surface of U-shaped gap and eccentric shaft 42; The diameter of the curved portion of U-shaped gap equals the diameter of eccentric wheel 421 on eccentric shaft 42.U-shaped gap setting makes the rotation of eccentric wheel 421 in gap 14 more smooth and easy.
The working principle of the swing arm regualting frame of by Fig. 1 to Fig. 4, above-described embodiment being described is below described in detail.
Actuating motor 41 operates and drives worm screw 44 to rotate, and the rotation of worm screw 44 simultaneously drives with the adjusting turbine 43 of worm screw 44 engagements and rotates, and make to rotate with the eccentric shaft 42 that regulates turbine 43 to be fixedly connected with, thereby band movable eccentric wheel 421 rotates.Eccentric wheel 421 surfaces on eccentric shaft 42 and the surface engagement of the U-shaped gap on swing arm regualting frame body 11, make the rotation of eccentric wheel 421 drive swing arm regualting frame body 11 to rotate around stationary axle 21, the rotation of swing arm regualting frame body 11 drives the running shaft 22 that is located at swing arm regualting frame body 11 drive portion 13 places around stationary axle 21, to rotate together with swing arm regualting frame body 11, finally drives the swing arm 45 being set on running shaft 22 to rotate.
Eccentric wheel 421 exists upper limit position while rotating, and (on eccentric wheel 421 circumferential surfacies, distance eccentric shaft 42 highest distance positions are positioned at eccentric shaft 42 tops, and the position of eccentric wheel 421 while being vertical state with the circle center line connecting of eccentric wheel 421) and the lower position relative with upper limit position, when eccentric wheel 421 is rotated, drive swing arm regualting frame body 11 around stationary axle 21 back and forth movements, complete swing arm regualting frame swing arm 45 is driven to the adjustable continuously of center.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (7)
1. a swing arm regualting frame, for regulating swing arm, is characterized in that, comprises swing arm regualting frame body, and described swing arm regualting frame body is provided with rotation section, drive portion and gap; Described drive portion is flexibly connected with described swing arm, so that described swing arm swings around the central shaft of described drive portion; Described gap is used for connecting Power Drive Unit; Described Power Drive Unit is used for driving described swing arm regualting frame body around described rotation section, to rotate together with described drive portion.
2. swing arm regualting frame according to claim 1, is characterized in that, described swing arm is provided with roller bearing, is arranged with roller on it, and for contacting with the cam of camshaft, the central shaft of described roller bearing and described rotation section coaxially arranges.
3. swing arm regualting frame according to claim 1 and 2, is characterized in that, described rotation section comprises and is located at the first through hole on described swing arm regualting frame body and is located at the stationary axle in described the first through hole; Described drive portion comprises and is located at the second through hole on described swing arm regualting frame body and is located at the running shaft in described the second through hole, and described swing arm is set on described running shaft.
4. swing arm regualting frame according to claim 3, is characterized in that, described running shaft is provided with Returnning spring, and described Returnning spring one end is fixedly connected with described swing arm regualting frame body, and the other end is used for being fixedly connected with described swing arm.
5. swing arm regualting frame according to claim 3, it is characterized in that, described running shaft is multidiameter shaft, and in end, is provided with the fixedly annular slotted of limit spring sheet, and described limit spring sheet is for being limited in described swing arm between described annular slotted and described swing arm regualting frame body.
6. swing arm regualting frame according to claim 1, is characterized in that, described Power Drive Unit comprises eccentric shaft, is located at the adjusting turbine of eccentric shaft one end, with regulate the worm screw of turbine engagement and the actuating motor being fixedly connected with worm screw.
7. swing arm regualting frame according to claim 6, is characterized in that, described gap is U-shaped gap, the eccentric surface engagement on the surface of described U-shaped gap and described eccentric shaft; The diameter of the curved portion of described U-shaped gap equals eccentric diameter on described eccentric shaft.
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 true CN103925033A (en) | 2014-07-16 |
| CN103925033B CN103925033B (en) | 2017-02-08 |
Family
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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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323602A (en) * | 2015-06-23 | 2017-01-11 | 株洲时代新材料科技股份有限公司 | Swing arm length adjusting 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19960742A1 (en) * | 1999-12-16 | 2001-06-21 | Iav Gmbh | Variable valve drive, preferably for combustion engine, has pressure roller rotatably mounted in swinging arm with pivot axis fixed relative to cylinder head but adjustable in position |
| US20070074690A1 (en) * | 2005-10-04 | 2007-04-05 | Masaaki Yoshikawa | Valve train apparatus for 4 stroke-cycle internal combustion engine |
| CN101025100A (en) * | 2006-02-22 | 2007-08-29 | 本田技研工业株式会社 | Default device of actuator for variable lift valve operating mechanism |
| US20070295292A1 (en) * | 2006-06-27 | 2007-12-27 | Otics Corporation | Variable valve mechanism |
| CN101260818A (en) * | 2007-03-05 | 2008-09-10 | 皮亚乔公司 | System for continuously changing lift and phase of valve in internal combustion engine |
-
2013
- 2013-01-15 CN CN201310014506.3A patent/CN103925033B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19960742A1 (en) * | 1999-12-16 | 2001-06-21 | Iav Gmbh | Variable valve drive, preferably for combustion engine, has pressure roller rotatably mounted in swinging arm with pivot axis fixed relative to cylinder head but adjustable in position |
| US20070074690A1 (en) * | 2005-10-04 | 2007-04-05 | Masaaki Yoshikawa | Valve train apparatus for 4 stroke-cycle internal combustion engine |
| CN101025100A (en) * | 2006-02-22 | 2007-08-29 | 本田技研工业株式会社 | Default device of actuator for variable lift valve operating mechanism |
| US20070295292A1 (en) * | 2006-06-27 | 2007-12-27 | Otics Corporation | Variable valve mechanism |
| CN101260818A (en) * | 2007-03-05 | 2008-09-10 | 皮亚乔公司 | System for continuously changing lift and phase of valve in internal combustion engine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106323602A (en) * | 2015-06-23 | 2017-01-11 | 株洲时代新材料科技股份有限公司 | Swing arm length adjusting device and paired air spring torsion fatigue test device |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103925033B (en) | 2017-02-08 |
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