WO2014110968A1

WO2014110968A1 - Driving apparatus for variable valve lift

Info

Publication number: WO2014110968A1
Application number: PCT/CN2013/090809
Authority: WO
Inventors: 刘涛; 刘胜强; 林文; 赵国东; 尹吉; 王忠宁; 王龙
Original assignee: 长城汽车股份有限公司
Priority date: 2013-01-15
Filing date: 2013-12-28
Publication date: 2014-07-24

Abstract

The present invention discloses a driving apparatus for a variable valve lift, and relates to engine parts, so as to increase the use life of parts and reduce the processing cost and fuel consumption of the engine. The driving apparatus comprises a valve, a valve connecting rod, a valve swinging arm, and a camshaft driving the valve to be open or closed. A swinging arm and a swinging arm adjusting frame are disposed between the valve swinging arm and the camshaft, a first rotating center and a second rotating center are disposed on the swinging arm, and when the camshaft rotates, the camshaft drives the swinging arm to swing around the first rotating center, so as to drive the valve connecting rod to perform a linear reciprocating motion to make the valve to be open or closed. The swinging arm adjusting frame has a rotating portion and a driving portion, and the driving portion is in flexible connection to the first rotating center of the swinging arm. The swinging arm adjusting frame rotates around the rotating portion to drive the swinging arm to rotate around the second rotating center and adjust the position of the first rotating center, and the swinging arm adjusting frame further has a gap used for being connected to a power-driven mechanism. The present invention is used for implementing the continuous variability of a valve lift.

Description

一种可变气门升程驱动装置本申请要求于 201 3 年 1 月 15 日提交中国专利局、申请号为 201 31 0014388. 6 , 发明名称为 "一种可变气门升程驱动装置"、和 201 3 年 1月 15 日提交中国专利局、申请号为 201 31 0014477. 0、发明名称为 "一种可变气门升程驱动装置"的中国专利申请的优先权，其全部内容通过引用结合在本申请中。 A variable valve lift driving device is claimed in the Chinese Patent Office on January 15, 201, and the application number is 201 31 0014388. 6, the invention name is "a variable valve lift driving device", and Priority of Chinese Patent Application No. 201 31 0014477. 0, entitled "Variable Valve Lift Driving Device", filed on January 15, 2013, the entire contents of which are incorporated by reference. In this application.

技术领域本发明涉及发动机部件，尤其涉及一种可变气门升程驱动装置。 TECHNICAL FIELD The present invention relates to engine components, and more particularly to a variable valve lift drive.

背景技术 Background technique

气门是发动机中的一个重要部件，用于向发动机内输入燃料并排出燃烧后的废气。在发动机领域中，气门升程指的是气门从刚刚打开到完全打开所运动的高度，也就是气门的开启高度。发动机中使用的凸轮轴的凸轮型线不同，所获得的气门升程也不同。传统发动机的气门升程是固定不变的，即其凸轮轴的凸轮型线只有一种，其升程设计是对发动机在全工况下的平衡性选择，因此该升程不可能使发动机在高速区和低速区都得到良好响应，结果是发动机既得不到最佳的高速效率，也得不到最佳的低速扭矩，只是得到了在全工况下较为平衡的性能。可变气门升程技术（ VVL , variable valve lift )能够根据发动机的不同工况改变其气门升程，使发动机在高速区和低速区都能得到良好的响应，从而改善发动机的高速功率和低速扭矩。现有的可变气门升程技术按照其控制效果可分为分段可变气门升程和连续可变气门升程。与分段可变气门升程相比，连续可变气门升程可以更好地配合发动机的燃烧***，具有一定的优越性。现有的可变气门升程驱动装置中，大多是通过改变凸轮轴的凸轮型线来获得不同的气门升程。具体的做法是使用组合式的凸轮轴，该组合式凸轮轴上设有多个具有不同型线的凸轮，通过该组合式凸轮轴上的不同凸轮型线来驱动气门连杆往复运动，从而使气门升程可变。但是在使用该可变气门升程驱动装置变换气门升程的过程中，凸轮轴、气门连杆等相关零部件均承受了不同程度的冲击载荷，降低了零部件的使用寿命。而且组合式的凸轮轴比传统的凸轮轴结构复杂、质量大，增加了发动机的加工成本和燃油消耗量。 The valve is an important component in the engine for inputting fuel into the engine and exhausting the burned exhaust gas. In the engine field, valve lift refers to the height at which the valve moves from just opening to fully opening, that is, the opening height of the valve. The cam profile of the camshaft used in the engine is different, and the valve lift obtained is also different. The valve lift of a conventional engine is fixed, that is, there is only one cam profile of the camshaft, and the lift design is a balance selection of the engine under full working conditions, so the lift is impossible to make the engine Both the high-speed zone and the low-speed zone are well-received. As a result, the engine does not get the best high-speed efficiency, and the optimal low-speed torque is not obtained, but the performance is balanced under all working conditions. Variable valve lift (VVL) can change the valve lift according to different operating conditions of the engine, so that the engine can get good response in both high-speed and low-speed areas, thus improving the engine's high-speed power and low-speed torque. . The existing variable valve lift technology can be divided into a segmented variable valve lift and a continuously variable valve lift according to its control effect. Compared with the segmented variable valve lift, the continuously variable valve lift can better match the combustion system of the engine and has certain advantages. In the existing variable valve lift drive device, most of the cam profile by changing the camshaft To get different valve lifts. The specific method is to use a combined camshaft, wherein the combined camshaft is provided with a plurality of cams having different profiles, and the different cam profiles on the combined camshaft drive the valve links to reciprocate, thereby The valve lift is variable. However, in the process of changing the valve lift using the variable valve lift drive device, the camshaft, the valve connecting rod and the like are subjected to different degrees of impact loads, thereby reducing the service life of the components. Moreover, the combined camshaft is more complex and of higher quality than the conventional camshaft, which increases the machining cost and fuel consumption of the engine.

发明内容本发明实施例提供一种可变气门升程驱动装置，以提高零部件的使用寿命，降低发动机的加工成本和燃油消耗量。为达到上述目的，本发明实施例釆用如下技术方案：一种可变气门升程驱动装置，包括：气门、与气门连接的气门连杆、与气门连杆连接的气门摇臂、以及驱动气门打开或关闭的凸轮轴，其特征在于，在气门摇臂和凸轮轴之间设有摆臂和摆臂调节架，摆臂上设有第一旋转中心和第二旋转中心，凸轮轴转动时带动摆臂围绕第一旋转中心摆动以驱动气门连杆直线往复运动实现气门的打开或闭合；摆臂调节架具有转动部、驱动部，所述驱动部与所述摆臂的第一旋转中心活动连接；所述摆臂调节架绕所述转动部转动，以带动摆臂围绕第二旋转中心转动同时调节第一旋转中心的位置；所述摆臂调节架还具有豁口，所述豁口用于连接动力驱动机构；所述动力驱动机构用于驱动所述摆臂调节架绕所述转动部转动，以带动摆臂围绕第二旋转中心转动同时调节第一旋转中心的位置。 SUMMARY OF THE INVENTION Embodiments of the present invention provide a variable valve lift driving device to improve the service life of components and reduce the processing cost and fuel consumption of the engine. In order to achieve the above object, the embodiment of the present invention uses the following technical solution: A variable valve lift driving device, comprising: a valve, a valve connecting rod connected to the valve, a valve rocker arm connected to the valve connecting rod, and a driving valve The cam shaft that is opened or closed is characterized in that: a swing arm and a swing arm adjusting frame are arranged between the valve rocker arm and the cam shaft, and the swing arm is provided with a first rotation center and a second rotation center, and the cam shaft is rotated. The swing arm swings around the first rotation center to drive the valve link to linearly reciprocate to realize opening or closing of the valve; the swing arm adjustment frame has a rotating portion and a driving portion, and the driving portion is movably connected with the first rotating center of the swing arm The swing arm adjustment frame rotates around the rotating portion to drive the swing arm to rotate around the second rotation center while adjusting the position of the first rotation center; the swing arm adjustment frame further has a gap, and the gap is used for connecting the power a driving mechanism; the power driving mechanism is configured to drive the swing arm adjusting frame to rotate around the rotating portion to drive the swing arm to rotate around the second rotating center Simultaneously adjust the position of the first center of rotation.

优选地，所述第二旋转中心与所述转动部的中' ^轴同轴线设置。 Preferably, the second rotation center is disposed coaxially with the middle '^ axis of the rotating portion.

其中，所述豁口的表面形状为 U型，所述动力驱动机构包括偏心轴及驱动所述偏心轴旋转的动力源，所述豁口与所述偏心轴上的偏心轮卡接。 Wherein, the surface shape of the gap is U-shaped, and the power driving mechanism includes an eccentric shaft and a power source for driving the eccentric shaft to rotate, and the gap is engaged with the eccentric wheel on the eccentric shaft.

优选地，所述的可变气门升程驱动装置，还包括固定在发动机缸盖上的轴承座，所述轴承座与所述转动部连接，并支承所述凸轮轴。优选地，所述的可变气门升程驱动装置，还包括套设在所述驱动部上回位弹簧，所述回位弹簧一端与所述摆臂调节架固定连接，另一端与所述摆臂固定连接。 Preferably, the variable valve lift driving device further includes a fixed on the engine cylinder head a bearing housing, the bearing housing is coupled to the rotating portion and supports the cam shaft. Preferably, the variable valve lift driving device further includes a return spring sleeved on the driving portion, and one end of the return spring is fixedly connected with the swing arm adjusting frame, and the other end is opposite to the pendulum The arm is fixedly connected.

其中，第一旋转中心为第一通孔，第一通孔内设有第一销轴，所述摆臂通过第一销轴与所述摆臂调节架上的驱动部活动连接；第二旋转中心为第二通孔，第二通孔内设有第二销轴，第二销轴上设有与凸轮轴配合运动的摆臂滚子。 The first rotation center is a first through hole, and the first through hole is provided with a first pin shaft, and the swing arm is movably connected to the driving portion on the swing arm adjustment frame through the first pin shaft; the second rotation The center is a second through hole, and the second through hole is provided with a second pin shaft, and the second pin shaft is provided with a swing arm roller that cooperates with the cam shaft.

优选地，所述驱动部包括设于所述摆臂调节架上的第三通孔及设于第三通孔内的驱动轴，所述驱动轴与所述第一销轴活动连接。优选地，所述气门包括第一气门和第二气门，所述气门连杆包括与第一气门连接的第一气门连杆和与第二气门连接的第二气门连杆，所述气门摇臂包括与第一气门连杆连接的第一气门摇臂和与第二气门连杆连接的第二气门摇臂，所述摆臂包括第一摆臂和第二摆臂，所述摆臂调节架包括第一摆臂调节架和第二摆臂调节架，所述第一摆臂和第一摆臂调节架设置于所述第一气门摇臂和凸轮轴之间，所述第二摆臂和第二摆臂调节架设置于所述第二气门摇臂和凸轮轴之间，所述第一摆臂调节架和第二摆臂调节架上均具有所述第一旋转中心和第二旋转中心，所述第一摆臂调节架具有第一转动部和第一驱动部，所述第一驱动部与所述第一摆臂调节架上的第一旋转中心活动连接，所述第二摆臂调节架具有第二转动部和第二驱动部，所述第二驱动部与所述第二摆臂调节架上的第一旋转中心活动连接；凸轮轴转动时带动第一摆臂围绕所述第一摆臂调节架上的第一旋转中心摆动以驱动第一气门连杆直线往复运动实现第一气门的打开或闭合，并且凸轮轴转动时带动第二摆臂围绕所述第二摆臂调节架上的第一旋转中心摆动以驱动第二气门连杆直线往复运动实现第二气门的打开或闭合；第一摆臂调节架绕自身的第一转动部转动以带动第一驱动部围绕第一转动部转动同时调节第一摆臂调节架上的第一旋转中心的位置，第二摆臂调节架绕自身的第二转动部转动以带动第二驱动部围绕第二转动部转动同时调节第二摆臂调节架上的第一旋转中心的位置；所述第一摆臂调节架和所述第二摆臂调节架上均设有所述豁口，所述第一摆臂调节架上的豁口为第一豁口，所述第二摆臂调节架上的豁口为第二豁口，所述第一豁口和第二豁口用于连接所述动力驱动机构，所述动力驱动机构用于驱动第一摆臂调节架绕自身的第一转动部转动以带动第一驱动部围绕第一转动部转动同时调节第一摆臂调节架上的第一旋转中心的位置，还用于驱动第二摆臂调节架绕自身的第二转动部转动以带动第二驱动部围绕第二转动部转动同时调节第二摆臂调节架上的第一旋转中心的位置。优选地，所述第一转动部与所述第一摆臂调节架上的第二旋转中心同轴设置。优选地，所述第二转动部与所述第二摆臂调节架上的第二旋转中心同轴线设置。优选地，为了使凸轮轴的承重能力更好、第一转动部和第二转动部的位置固定，所述的可变气门升程驱动装置还包括位于所述凸轮轴、第一摆臂调节架及第二摆臂调节架之间的轴承座，所述轴承座具有连接部，所述第一转动部及所述第二转动部共同与所述连接部活动连接。优选地，为了能够实现第一气门和第二气门的不同开度，所述第一豁口的表面形状与所述第二豁口的表面形状不相同。优选地，为使动力传递过程能量损失较少，传递效率较高，所述动力驱动机构包括曲拐轴及驱动所述曲拐轴旋转的伺服电机；所述曲拐轴包括同轴设置的两个直线部和位于两个直线部之间且固定连接两个直线部的曲拐部，所述两个直线部的轴线与所述曲拐部的轴线平行且之间具有指定的距离，所述第一豁口及第二豁口均卡接所述曲拐部。 Preferably, the driving portion includes a third through hole provided on the swing arm adjusting frame and a driving shaft disposed in the third through hole, and the driving shaft is movably connected to the first pin shaft. Preferably, the valve includes a first valve and a second valve, and the valve link includes a first valve link connected to the first valve and a second valve link connected to the second valve, the valve rocker a first valve rocker arm connected to the first valve link and a second valve rocker arm connected to the second valve link, the swing arm including a first swing arm and a second swing arm, the swing arm adjuster The first swing arm adjuster and the second swing arm adjuster are disposed, the first swing arm and the first swing arm adjustment frame are disposed between the first valve rocker arm and the cam shaft, the second swing arm and a second swing arm adjustment frame is disposed between the second valve rocker arm and the cam shaft, and the first swing arm adjustment frame and the second swing arm adjustment frame respectively have the first rotation center and the second rotation center The first swing arm adjustment frame has a first rotating portion and a first driving portion, and the first driving portion is movably connected with a first rotating center on the first swing arm adjusting frame, the second swing arm The adjustment frame has a second rotating portion and a second driving portion, and the second driving portion and the second pendulum a first rotating center movable connection on the adjusting frame; driving the first swing arm to swing around the first rotating center on the first swing arm adjusting frame to rotate the first swinging arm to linearly reciprocate the first valve link to realize the first valve Opening or closing, and rotating the cam shaft to rotate around the first rotation center on the second swing arm adjustment frame to drive the second valve link to linearly reciprocate to realize opening or closing of the second valve; The first swing arm adjustment frame rotates around its first rotating portion to drive the first driving portion to rotate around the first rotating portion while adjusting the position of the first rotating center on the first swing arm adjusting frame, and the second swing arm adjusts the winding frame The second rotating portion of the rotation is rotated to drive the second driving portion to rotate around the second rotating portion a position of the first rotation center on the second swing arm adjustment frame; the first swing arm adjustment frame and the second swing arm adjustment frame are respectively provided with the notch, the first swing arm adjustment frame The gap is a first gap, the gap on the second swing arm adjustment frame is a second gap, the first gap and the second gap are used to connect the power drive mechanism, and the power drive mechanism is used to drive the first a swing arm adjusting frame rotates around its first rotating portion to drive the first driving portion to rotate around the first rotating portion while adjusting the position of the first rotating center on the first swing arm adjusting frame, and is also used for driving the second swing arm The adjusting frame rotates around its second rotating portion to drive the second driving portion to rotate around the second rotating portion while adjusting the position of the first rotating center on the second swing arm adjusting frame. Preferably, the first rotating portion is disposed coaxially with the second rotating center on the first swing arm adjusting frame. Preferably, the second rotating portion is disposed coaxially with the second rotation center on the second swing arm adjustment frame. Preferably, in order to make the bearing capacity of the camshaft better, and the positions of the first rotating portion and the second rotating portion are fixed, the variable valve lift driving device further includes the cam shaft and the first swing arm adjusting frame. And a bearing seat between the second swing arm adjusting frame, the bearing seat has a connecting portion, and the first rotating portion and the second rotating portion are movably connected to the connecting portion. Preferably, in order to enable different opening degrees of the first valve and the second valve, the surface shape of the first gap is different from the surface shape of the second gap. Preferably, in order to make the power transmission process less energy loss, the power transmission mechanism includes a crankshaft and a servo motor that drives the crankshaft rotation; the crankshaft includes two coaxially disposed a straight portion and a bell crank portion between the two straight portions and fixedly connecting the two straight portions, the axes of the two straight portions being parallel to the axis of the crank portion and having a specified distance therebetween, The first gap and the second gap are respectively engaged with the crank portion.

优选地，为了降低装配时确保第一驱动轴与第一旋转中心同轴、第二驱动轴与第二旋转中心同轴线的难度，所述第一驱动部包括设于所述第一摆臂调节架上的第四通孔及设于所述第四通孔内的第一驱动轴，所述第一驱动轴与第一摆臂调节架上的第一旋转中心活动连接；所述第二驱动部包括设于所述第二摆臂调节架上的第五通孔及设于所述第五通孔内的第二驱动轴，所述第二驱动轴与所述第二摆臂调节架上的第一旋转中心活动连接。 Preferably, in order to reduce the difficulty of ensuring that the first drive shaft is coaxial with the first rotation center and the second drive shaft and the second rotation center are coaxial during assembly, the first driving portion is disposed on the first swing arm a fourth through hole on the adjusting frame and a first driving shaft disposed in the fourth through hole, the first driving shaft is movably connected with a first rotating center on the first swing arm adjusting frame; the second Drive package a fifth through hole provided in the second swing arm adjusting frame and a second driving shaft disposed in the fifth through hole, the second driving shaft and the second swing arm adjusting frame The first rotating center is connected to the activity.

具体而言，所述第一摆臂调节架上的第二旋转中心为设在第一摆臂的第六通孔，所述第二摆臂调节架上的第二旋转中心为设在第二摆臂的第七通孔；第六通孔内安装有第一摆臂滚子，所述第一摆臂滚子与所述凸轮轴上的第一凸轮相接触；第七通孔内安装有第二摆臂滚子，所述第二摆臂滚子与所述凸轮轴上的第二凸轮相接触。对于本发明实施例提供的可变气门升程驱动装置而言，凸轮轴转动时带动摆臂围绕第一旋转中心摆动以驱动气门连杆直线往复运动实现气门的打开或闭合，摆臂调节架转动时带动摆臂围绕第二旋转中, ^转动以调节第一旋转中心的位置，这样当第一旋转中心位于一个位置处时可以实现一种气门升程，当通过摆臂调节架调整第一旋转中心使其位于另一个不同位置处时可以实现另一种不同的气门升程，因此可以根据发动机的不同使用工况对气门升程进行改变。本发明实施例中实现可变气门升程的方式与现有技术中使用组合式凸轮轴实现可变气门升程的方式不同，不会由于变更具有不同型线的凸轮来驱动气门连杆运动而对凸轮轴、气门连杆等零部件产生冲击作用，延长了凸轮轴、气门连杆等相关零部件的使用寿命；而且由于不会在凸轮轴上设置多个具有不同型线的凸轮，因此与本发明实施例中的摆臂配合使用的凸轮轴结构简单、质量小，降低了发动机的加工成本和燃油消耗量。同时，摆臂调节架还具有豁口，从而驱动机构中的部件可以容纳于豁口内，节约了空间，使得可变气门升程驱动装置的结构更加紧 Specifically, the second rotation center on the first swing arm adjustment frame is a sixth through hole provided in the first swing arm, and the second rotation center on the second swing arm adjustment frame is set in the second a seventh through hole of the swing arm; a first swing arm roller is mounted in the sixth through hole, the first swing arm roller is in contact with the first cam on the cam shaft; and the seventh through hole is mounted therein a second swing arm roller, the second swing arm roller being in contact with a second cam on the camshaft. For the variable valve lift driving device provided by the embodiment of the present invention, when the cam shaft rotates, the swing arm is swung around the first rotating center to drive the valve link to linearly reciprocate to realize the opening or closing of the valve, and the swing arm adjusting frame rotates. When the swing arm is rotated around the second rotation, ^ rotates to adjust the position of the first rotation center, so that when the first rotation center is at a position, a valve lift can be realized, when the first rotation is adjusted by the swing arm adjustment frame The center allows it to achieve a different valve lift when it is located at a different location, so the valve lift can be changed depending on the operating conditions of the engine. The manner in which the variable valve lift is implemented in the embodiment of the present invention is different from the prior art in that the combined camshaft is used to realize the variable valve lift, and the valve link motion is not driven by changing the cams having different profiles. Impact on camshafts, valve linkages, etc., prolonging the service life of camshafts, valve linkages, etc.; and because there are no cams with different profiles on the camshaft, The camshaft used in the swing arm of the embodiment of the invention has a simple structure and small mass, and reduces the processing cost and fuel consumption of the engine. At the same time, the swing arm adjustment frame also has a slit, so that the components in the driving mechanism can be accommodated in the gap, saving space and making the structure of the variable valve lift driving device tighter.

附图说明 DRAWINGS

为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例所需要使用的附图作简单地介绍。图 1为本发明可变气门升程驱动装置之实施例 1提供的一种可变气门升程驱动装置的分解结构示意图；图 2为图 1提供的可变气门升程驱动装置改进后的另一种可变气门升程驱动装置的分解结构示意图；图 3为本发明可变气门升程驱动装置之实施例 2提供的可变气门升程驱动装置的结构分解示意图；图 4为图 3中动力驱动机构的结构示意图；图 5为图 3中第一摆臂调节架的结构示意图；图 6为图 3中第二摆臂调节架的结构示意图。具体实施方式下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚地描述。本发明实施例提供的可变气门升程驱动装置，包括：气门、与气门连接的气门连杆、与气门连杆连接的气门摇臂、以及驱动气门打开或关闭的凸轮轴，其特征在于，在气门摇臂和凸轮轴之间设有摆臂和摆臂调节架，摆臂上设有第一旋转中心和第二旋转中心，凸轮轴转动时带动摆臂围绕第一旋转中心摆动以驱动气门连杆直线往复运动实现气门的打开或闭合；摆臂调节架具有转动部、驱动部，所述驱动部与所述摆臂的第一旋转中心活动连接；所述摆臂调节架绕所述转动部转动，以带动摆臂围绕第二旋转中心转动同时调节第一旋转中心的位置；所述摆臂调节架还具有豁口，所述豁口用于连接动力驱动机构；所述动力驱动机构用于驱动所述摆臂调节架绕绕所述转动部转动，以带动摆臂围绕第二旋转中心转动同时调节第一旋转中心的位置。这样当第一旋转中心位于一个位置处时可以实现一种气门升程，当通过摆臂调节架调整第一旋转中心使其位于另一个不同位置处时可以实现另一种不同的气门升程，因此可以根据发动机的不同使用工况对气门升程进行改变。本发明实施例中实现可变气门升程的方式与现有技术中使用组合式凸轮轴实现可变气门升程的方式不同，不会由于变更具有不同型线的凸轮来驱动气门连杆运动而对凸轮轴、气门连杆等零部件产生冲击作用，延长了凸轮轴、气门连杆等相关零部件的使用寿命；而且由于不会在凸轮轴上设置多个具有不同型线的凸轮，因此与本发明实施例中的摆臂配合使用的凸轮轴结构简单、质量小，降低了发动机的加工成本和燃油消耗量。同时，摆臂调节架还具有豁口，从而驱动机构中的部件可以容纳于豁口内，节约了空间，使得可变气门升程驱动装置的结构更加紧凑。下面结合附图来详细说明本发明提供的可变气门升程驱动装置的优选实施例。可变气门升程驱动装置之实施例 1 图 1为本发明可变气门升程驱动装置之实施例 1提供的一种可变气门升程驱动装置的分解结构示意图。如图 1所示，该可变气门升程驱动装置包括：气门 1 1、与气门 1 1连接的气门连杆 12、与气门连杆 12连接的气门摇臂 13、以及驱动气门 1 1打开或关闭的凸轮轴 14 , 在气门摇臂 13和凸轮轴 14之间设有摆臂 15和摆臂调节架 16 , 摆臂 15上设有第一旋转中心 151和第二旋转中心 152 , 凸轮轴 14转动时带动摆臂 15围绕第一旋转中心 151摆动以驱动气门连杆 12直线往复运动实现气门 1 1 的打开或闭合；摆臂调节架 16具有转动部 161、驱动部 162 , 驱动部 162与摆臂 15 的第一旋转中心 151活动连接；摆臂调节架 16绕转动部 161转动，以带动摆臂 15围绕第二旋转中心 152转动同时调节第一旋转中心 151的位置；摆臂调节架 16还具有豁口 163 , 豁口 163用于连接动力驱动机构 17 ; 动力驱动机构 17用于驱动摆臂调节架 16绕转动部转动，以带动摆臂 15围绕第二旋转中心 152转动同时调节第一旋转中心 151的位置。从而动力驱动机构 17中的部件可以容纳于豁口 163 内，节约了空间，使得可变气门升程驱动装置的结构更加紧凑。这样当第一旋转中心 151位于一个位置处时可以实现一种气门升程，当动力驱动机构驱动摆臂调节架 16绕转动部 161转动以带动摆臂 15围绕第二旋转中心 152转动同时，调整第一旋转中心 151使其位于另一个不同位置处时可以实现另一种不同的气门升程，因此，本发明实施例提供的可变气门升程驱动装置可以实现气门升程的连续可调。本发明实施例提供的可变气门升程驱动装置实现可变气门升程的方式与现有技术中使用组合式凸轮轴实现可变气门升程的方式不同，不会由于变更具有不同型线的凸轮来驱动气门连杆运动而对凸轮轴、气门连杆等零部件产生冲击作用，延长了凸轮轴、气门连杆等相关零部件的使用寿命；而且由于不会在凸轮轴上设置多个具有不同型线的凸轮，因此与本发明实施例中的摆臂配合使用的凸轮轴结构简单、质量小，降低了发动机的加工成本和燃油消耗量。 In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments will be briefly described below. 1 is a variable valve provided in Embodiment 1 of a variable valve lift driving device of the present invention; FIG. 2 is an exploded perspective view showing another modified valve lift driving device of the variable valve lift driving device provided in FIG. 1; FIG. 3 is a schematic diagram of a variable valve lift of the present invention; FIG. 4 is a schematic structural view of the power driving mechanism of FIG. 3; FIG. 5 is a schematic structural view of the first swing arm adjusting frame of FIG. 3; FIG. 6 is a schematic structural view of the second swing arm adjusting frame of FIG. 3. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the drawings in the embodiments of the present invention. The variable valve lift driving device provided by the embodiment of the invention includes: a valve, a valve connecting rod connected to the valve, a valve rocker arm connected to the valve connecting rod, and a cam shaft driving the valve to open or close, wherein A swing arm and a swing arm adjusting frame are arranged between the valve rocker arm and the cam shaft. The swing arm is provided with a first rotation center and a second rotation center. When the cam shaft rotates, the swing arm swings around the first rotation center to drive the valve. The linear reciprocating movement of the connecting rod realizes opening or closing of the valve; the swing arm adjusting frame has a rotating portion and a driving portion, and the driving portion is movably connected with the first rotating center of the swing arm; the swing arm adjusting frame rotates around the swinging arm Rotating to rotate the swing arm about the second center of rotation while adjusting the position of the first center of rotation; the swing arm adjuster further has a gap for connecting the power drive mechanism; the power drive mechanism is for driving The swing arm adjustment frame rotates around the rotating portion to drive the swing arm to rotate around the second rotation center while adjusting the position of the first rotation center. Thus, when the first center of rotation is at a position, a valve lift can be realized, and when the first center of rotation is adjusted by the swing arm adjuster to be at another different position, another different valve lift can be realized. Therefore, the valve lift can be changed according to different operating conditions of the engine. The manner of realizing the variable valve lift in the embodiment of the present invention is different from the manner of using the combined camshaft to realize the variable valve lift in the prior art, and does not have a change due to the change. The same type of cam drives the valve linkage to impact the camshaft, valve linkage and other components, prolonging the service life of the camshaft, valve linkage and other related components; and because it is not set on the camshaft A plurality of cams having different profiles, so that the camshaft used in conjunction with the swing arm in the embodiment of the present invention has a simple structure and a small mass, which reduces the processing cost and fuel consumption of the engine. At the same time, the swing arm adjuster also has a slit, so that the components in the drive mechanism can be accommodated in the gap, saving space and making the structure of the variable valve lift drive more compact. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the variable valve lift driving apparatus provided by the present invention will be described in detail with reference to the accompanying drawings. Embodiment 1 of Variable Valve Lift Driving Device FIG. 1 is an exploded perspective view showing a variable valve lift driving device according to Embodiment 1 of the variable valve lift driving device of the present invention. As shown in FIG. 1, the variable valve lift driving device includes: a valve 1 1 , a valve connecting rod 12 connected to the valve 1 1 , a valve rocker arm 13 connected to the valve connecting rod 12 , and a driving valve 1 1 open or The closed camshaft 14 is provided with a swing arm 15 and a swing arm adjusting frame 16 between the valve rocker arm 13 and the cam shaft 14. The swing arm 15 is provided with a first rotation center 151 and a second rotation center 152, and the cam shaft 14 When the rotation swings the swing arm 15 around the first rotation center 151 to drive the valve link 12 to linearly reciprocate to realize the opening or closing of the valve 1 1 ; the swing arm adjustment frame 16 has the rotating portion 161 , the driving portion 162 , the driving portion 162 and the pendulum The first rotation center 151 of the arm 15 is movably connected; the swing arm adjustment frame 16 rotates around the rotating portion 161 to drive the swing arm 15 to rotate around the second rotation center 152 while adjusting the position of the first rotation center 151; the swing arm adjustment frame 16 further The opening 163 is configured to connect the power driving mechanism 17; the power driving mechanism 17 is configured to drive the swing arm adjusting frame 16 to rotate around the rotating portion to drive the swing arm 15 to rotate around the second rotating center 152 while adjusting the first rotating center 151. s position. Thus, the components in the power drive mechanism 17 can be housed in the recess 163, saving space and making the structure of the variable valve lift drive more compact. Thus, when the first rotation center 151 is at a position, a valve lift can be realized. When the power driving mechanism drives the swing arm adjustment frame 16 to rotate around the rotating portion 161 to drive the swing arm 15 to rotate around the second rotation center 152, the adjustment is performed. The first rotation center 151 can realize another different valve lift when it is located at another different position. Therefore, the embodiment of the present invention provides The variable valve lift drive can continuously adjust the valve lift. The variable valve lift driving device provided by the embodiment of the present invention realizes the variable valve lift in a manner different from the prior art in that the combined camshaft realizes the variable valve lift, and does not have different profiles due to the change. The cam drives the valve link movement to impact the camshaft, the valve connecting rod and the like, and prolongs the service life of the camshaft, the valve connecting rod and the like, and does not have a plurality of camshafts. The cams of different profiles, therefore, the camshaft used in combination with the swing arm in the embodiment of the present invention has a simple structure and a small mass, which reduces the processing cost and fuel consumption of the engine.

上述实施例提供的可变气门升程驱动装置中，摆臂调节架 16铰接在发动机的位置固定的零部件上，例如铰接在发动机的盖体上，摆臂调节架 16 能够围绕铰接处转动，因此转动部 161 的中心轴即为该铰接处，且该中心轴固定不动。当第一旋转中心 151 位于第一位置时，使摆臂调节架 16 围绕转动部 161 的中心转动某一角度，以使第一旋转中心 151位于另一个不同于第一位置的第二位置。 In the variable valve lift driving device provided by the above embodiment, the swing arm adjusting frame 16 is hinged on the fixed component of the engine, for example, hinged on the cover of the engine, and the swing arm adjusting frame 16 can rotate around the hinge. Therefore, the central axis of the rotating portion 161 is the hinge, and the central shaft is fixed. When the first center of rotation 151 is in the first position, the swing arm adjuster 16 is rotated about the center of the rotating portion 161 by an angle such that the first center of rotation 151 is located at another second position different from the first position.

第二旋转中心 152可以与摆臂调节架 16的转动部 161的中心轴同轴线 ,这样，如果得知了第一旋转中心 151从第一位置到第二位置的过程中 , 摆臂调节架 16围绕转动部 161 的中心轴所转过的角度值，也就能得知摆臂 15 绕第二旋转中心 152 所转过的角度值。当然，如果得知了摆臂 15 绕第二旋转中心 152所转过的角度值，也就能得知摆臂调节架 16围绕转动部 161的中心轴所转过的角度值。 The second rotation center 152 may be coaxial with the central axis of the rotating portion 161 of the swing arm adjustment frame 16, such that if the first rotation center 151 is known from the first position to the second position, the swing arm adjustment frame The angle value of the swing arm 15 about the second rotation center 152 can also be known by the angle value of the rotation around the central axis of the rotating portion 161. Of course, if the angle value of the swing arm 15 about the second rotation center 152 is known, the angle value of the swing arm adjustment frame 16 about the central axis of the rotation portion 161 can be known.

上述实施例提供的可变气门升程驱动装置中，如图 1所示，豁口 163 的表面形状可以为 U型，动力驱动机构 17可以包括偏心轴 31及驱动偏心轴 31旋转的动力源，如果偏心轮 31 1相对于 U型豁口 163转动，将损耗一部分能量，传递动力的效率较低。本实施例中，豁口 163 与偏心轴 31上的偏心轮 31 1卡接。即偏心轮 31 1与 U型豁口 163之间无相对运动，从而使得偏心轮 31 1 直接把动力传递给摆臂调节架 16 , 能量损失较少，传递效率较高。上述实施例提供的可变气门升程驱动装置中，如图 1所示，还可以包括固定在发动机缸盖上的轴承座 32, 轴承座 32可以与转动部 161连接，并支承凸轮轴 14, 使得转动部 161的中心轴固定，从而使凸轮轴 14的承重能力更好。转动部 161 的中心轴固定，使得更容易获知摆臂调节架 16 位置变化时其自身绕转动部 161的中心轴所转过的角度。 In the variable valve lift driving device provided by the above embodiment, as shown in FIG. 1, the surface shape of the cutout 163 may be U-shaped, and the power driving mechanism 17 may include an eccentric shaft 31 and a power source for driving the rotation of the eccentric shaft 31, if When the eccentric 31 1 rotates relative to the U-shaped opening 163, a part of the energy is lost, and the efficiency of transmitting power is low. In the present embodiment, the notch 163 is engaged with the eccentric 31 1 on the eccentric shaft 31. That is, there is no relative movement between the eccentric 31 1 and the U-shaped opening 163, so that the eccentric 31 1 directly transmits power to the swing arm adjustment frame 16, which has less energy loss and high transmission efficiency. In the variable valve lift driving device provided by the above embodiment, as shown in FIG. The bearing housing 32 is fixed to the engine head, and the bearing housing 32 is connectable to the rotating portion 161 and supports the cam shaft 14 so that the central shaft of the rotating portion 161 is fixed, so that the bearing capacity of the cam shaft 14 is better. The central axis of the rotating portion 161 is fixed, so that it is easier to know the angle by which the swing arm adjusting frame 16 is rotated about the central axis of the rotating portion 161 when the position of the swing arm adjusting frame 16 is changed.

上述实施例提供的可变气门升程驱动装置中，还可以包括：套设在驱动部上的回位弹簧 33, 回位弹簧 33—端与摆臂调节架 16 固定连接，另一端与摆臂 15固定连接。 The variable valve lift driving device provided by the above embodiment may further include: a return spring 33 sleeved on the driving portion, the return spring 33-end is fixedly connected with the swing arm adjusting frame 16, and the other end and the swing arm 15 fixed connection.

当摆臂 15绕第一旋转中心 151转过某一角度时，此时气门 11开启。摆臂 15会将回位弹簧 33压紧，使得回位弹簧 33储存了弹性势能。当气门 11关闭时，回位弹簧 33会将储存的弹性势能释放，从而使摆臂 15回到未发生转动时的位置。 When the swing arm 15 is rotated through the first rotation center 151 by an angle, the valve 11 is now opened. The swing arm 15 presses the return spring 33 so that the return spring 33 stores the elastic potential energy. When the valve 11 is closed, the return spring 33 releases the stored elastic potential energy, thereby causing the swing arm 15 to return to the position where it did not rotate.

上述实施例提供的可变气门升程驱动装置中，如图 2所示，第一旋转中心 151为第一通孔 41, 第一通孔 41 内设有第一销轴 411, 摆臂 15通过第一销轴 411与摆臂调节架 16上的驱动部 162活动连接；第二旋转中心 152为第二通孔 42, 第二通孔 42 内设有第二销轴 421, 第二销轴 421上设有与凸轮轴 14配合运动的摆臂滚子 43。本实施例中第一旋转中心 151 具体可以为第一通孔 41, 第二旋转中心 152具体可以为第二通孔 42, 且第一通孔 41 内可设有第一销轴 411, 摆臂 15通过第一销轴 411与摆臂调节架 16上的驱动部 162活动连接；第二旋转中心 152可以为第二通孔 42, 第二销轴 421上可设有与凸轮轴 14 配合运动的摆臂滚子 43, 凸轮轴 14驱动摆臂滚子 43以使摆臂 15围绕第一销轴 411摆动实现气门 11的打开或闭合，摆臂调节架 16转动带动摆臂 15围绕第二销 421轴转动以调节第一销轴 411的位置。 In the variable valve lift driving device provided in the above embodiment, as shown in FIG. 2, the first rotating center 151 is a first through hole 41, and the first through hole 41 is provided with a first pin shaft 411, and the swing arm 15 passes through The first pin 411 is movably connected to the driving portion 162 of the swing arm adjusting frame 16; the second rotating center 152 is a second through hole 42, and the second through hole 42 is provided with a second pin 421, and the second pin 421 A swing arm roller 43 that cooperates with the cam shaft 14 is provided thereon. In this embodiment, the first rotating center 151 may be a first through hole 41, and the second rotating center 152 may be a second through hole 42. The first through hole 41 may be provided with a first pin 411, and the swing arm 15 is movably connected to the driving portion 162 of the swing arm adjusting frame 16 through the first pin shaft 411; the second rotating center 152 may be a second through hole 42, and the second pin shaft 421 may be provided with a cooperative movement with the cam shaft 14 The swing arm roller 43 drives the swing arm roller 43 to swing the swing arm 15 around the first pin shaft 411 to open or close the valve 11. The swing arm adjuster 16 rotates to swing the swing arm 15 around the second pin 421. The shaft is rotated to adjust the position of the first pin shaft 411.

需要说明的是，第一旋转中心 151和第二旋转中心 152的实现形式并不局限于通孔，例如可以使摆臂 15与第一销轴 411一体成型，或者与第二销轴 421—体成型，在这种形式下，摆臂 15并不围绕与之一体成型的第一销轴 411或第二销轴 412转动，而是跟随其一起转动。 It should be noted that the implementation forms of the first rotation center 151 and the second rotation center 152 are not limited to the through holes. For example, the swing arm 15 may be integrally formed with the first pin 411 or may be integrally formed with the second pin 421. Forming, in this form, the swing arm 15 does not rotate about the first pin shaft 411 or the second pin shaft 412 which is integrally formed, but rotates therewith.

摆臂滚子 43可以将第二旋转中心 152的位置临时固定，以便驱动摆臂 15围绕第二旋转中心 152转动。具体可以为将摆臂滚子 43抵靠在与之接触的其他零部件上使摆臂滚子 43 固定不动，例如抵靠在凸轮轴 14的凸轮上，然后驱动摆臂 15转动以使第二销轴 421相对于摆臂滚子 43旋转，从而使摆臂 15能够围绕第二旋转中心 152旋转。在摆臂 15围绕第二旋转中心 152旋转的运动完成后，凸轮轴 14转动，凸轮轴 14上的凸轮的大端抵靠摆臂滚子 43并使摆臂滚子 43带动第二销轴 421 , 再由第二销轴 421 带动摆臂 15围绕第一旋转中心 151摆动。 The swing arm roller 43 can temporarily fix the position of the second rotation center 152 to drive the pendulum The arm 15 rotates about a second center of rotation 152. Specifically, the swing arm roller 43 can be fixed against the other components in contact with the swing arm roller 43 , for example, against the cam of the camshaft 14 , and then the swing arm 15 is driven to rotate. The second pin 421 rotates relative to the swing arm roller 43, so that the swing arm 15 can rotate about the second center of rotation 152. After the movement of the swing arm 15 about the second rotation center 152 is completed, the cam shaft 14 is rotated, the large end of the cam on the cam shaft 14 abuts against the swing arm roller 43 and the swing arm roller 43 drives the second pin shaft 421. Then, the second pin 421 drives the swing arm 15 to swing around the first rotation center 151.

上述实施例提供的可变气门升程驱动装置中，驱动部 162可以包括设于摆臂调节架 16上的第三通孔 44及设于第三通孔 44内的驱动轴 45 , 驱动轴 45与第一旋转中心 151活动连接。这样摆臂 15能够绕驱动轴 45转动，驱动轴 45与第一旋转中心 151共用一个轴，大大降低了装配时确保驱动轴 45与第一旋转中心 151 同轴的难度。此外，驱动轴 45能够直接将摆臂调节架 16上的动力传递给与其活动链接的摆臂 15 , 而无需再设置其他的传递动力的零件。上述实施例提供的可变气门升程驱动装置中，第一销轴 41 1和第一通孔 41之间可以设有轴承 46 , 可以使第一销轴 41 1和第一通孔 41之间具有更好的相对运动，该轴承 46可以选用滚针轴承，滚针轴承的径向厚度较小，适合于放置在第一销轴 41 1与第一通孔 41之间的狭小空间内。但并不局限于此，如果空间允许，也可以使用其他形式的轴承 46 , 如圓珠滚子轴承等。具体而言，轴承 46的数目为两个，该两个轴承均套在第一销轴 41 1上且与第一销轴 41 1 间隙配合，因此为避免轴承在第一销轴 41 1 上产生轴向运动，可以在该两个轴承 46之间的第一销轴 41 1上套设 4氐挡轴承 46的衬套（未图示），应当清楚，滚针轴承的数目可以不局限于两个。 In the variable valve lift driving device provided in the above embodiment, the driving portion 162 may include a third through hole 44 disposed on the swing arm adjusting frame 16 and a driving shaft 45 disposed in the third through hole 44, and the driving shaft 45 It is movably connected to the first rotation center 151. Thus, the swing arm 15 can be rotated about the drive shaft 45, and the drive shaft 45 shares a shaft with the first rotation center 151, which greatly reduces the difficulty of ensuring that the drive shaft 45 is coaxial with the first rotation center 151 during assembly. In addition, the drive shaft 45 can directly transmit power on the swing arm mount 16 to the swing arm 15 with its active link without the need to provide additional power transmitting components. In the variable valve lift driving device provided by the above embodiment, a bearing 46 may be disposed between the first pin 41 1 and the first through hole 41, and the first pin 41 1 and the first through hole 41 may be With better relative motion, the bearing 46 can be a needle bearing, which has a small radial thickness and is suitable for being placed in a narrow space between the first pin 41 1 and the first through hole 41. However, it is not limited to this, and other types of bearings 46, such as ball bearings, may be used if space permits. Specifically, the number of the bearings 46 is two, and the two bearings are sleeved on the first pin 41 1 and are in clearance with the first pin 41 1 , so that the bearing is prevented from being generated on the first pin 41 1 . For axial movement, a bushing (not shown) of the 4-way bearing 46 may be sleeved on the first pin 41 1 between the two bearings 46. It should be clear that the number of needle bearings may not be limited to two. One.

上述实施例提供的可变气门升程驱动装置中，第一销轴 41 1的两端可以卡接有卡簧用于防止第一销轴 41 1的轴向蹿动。 In the variable valve lift driving device provided in the above embodiment, the both ends of the first pin 41 1 may be engaged with a retaining spring for preventing axial sway of the first pin 41 1 .

上述实施例提供的可变气门升程驱动装置中，第二销轴 421的两端可以卡接有卡簧用于防止第二销轴 421的轴向蹿动。可变气门升程驱动装置之实施例 2 In the variable valve lift driving device provided in the above embodiment, the two ends of the second pin shaft 421 may be engaged with a retaining spring for preventing axial sway of the second pin shaft 421. Embodiment 2 of variable valve lift driving device

图 3为本发明可变气门升程驱动装置之实施例 2的结构分解示意图。如图 3所示，该可变气门升程驱动装置，包括：第一气门 1-11和第二气门 1-1 、与第一气门 1-11连接的第一气门连杆 1-12和与第二气门 1-1 连接的第二气门连杆 1— 12' 、与第一气门连杆 1-12连接的第一气门摇臂 1-13和与第二气门连杆 1-12' 连接的第二气门摇臂 1-13' 、以及驱动第一气门 1-11和第二气门 1-1 打开或闭合的凸轮轴 1-14, 在第一气门摇臂 1-13和凸轮轴 1-14之间设有第一摆臂 1-15和第一摆臂调节架 1-16, 在第二气门摇臂 1-13' 和凸轮轴 1-14之间设有第二摆臂 1-15' 和第二摆臂调节架 1-16' ；第一摆臂 1-15上设有第一旋转中心 1-151和第二旋转中心 1-152, 第二摆臂 1-15' 上设有第一旋转中心 1-15 和第二旋转中心 1-152' , 第一摆臂调节架 1-16上设有与第一旋转中心 1-151活动连接的第一驱动部 1-162,第二摆臂调节架 1-16'上设有与第一旋转中心 1-15 活动连接的第二驱动部 1-162' 。凸轮轴 1-14转动时带动第一摆臂 1-15围绕第一旋转中心 1-151摆动以驱动第一气门连杆 1-12 直线往复运动实现第一气门 1-11 的打开或闭合，并且凸轮轴 1-14转动时带动第二摆臂 1-15'围绕第一旋转中心 1-15 摆动以驱动第二气门连杆 1-12' 直线往复运动实现第二气门 1-1 的打开或闭合。 Fig. 3 is a schematic exploded view showing the structure of the variable valve lift driving device of the present invention. As shown in FIG. 3, the variable valve lift driving device includes: a first valve 1-11 and a second valve 1-1, a first valve link 1-12 connected to the first valve 1-11, and a second valve link 1-12' connected to the second valve 1-1, a first valve rocker 1-13 connected to the first valve link 1-12, and a second valve link 1-12' a second valve rocker arm 1-13', and a camshaft 1-14 that drives the first valve 1-11 and the second valve 1-1 to open or close, at the first valve rocker arm 1-13 and the camshaft 1-14 There are a first swing arm 1-15 and a first swing arm adjustment frame 1-16, and a second swing arm 1-15' between the second valve rocker arm 1-13' and the cam shaft 1-14. And the second swing arm adjusting frame 1-16'; the first swing arm 1-15 is provided with a first rotation center 1-151 and a second rotation center 1-152, and the second swing arm 1-15' is provided with a first a rotation center 1-15 and a second rotation center 1-152', the first swing arm adjustment frame 1-16 is provided with a first driving portion 1-162 movably connected to the first rotation center 1-151, and the second pendulum The arm adjustment bracket 1-16' is provided with a second drive movably connected to the first rotation center 1-15 Department 1-162'. When the camshaft 1-14 rotates, the first swing arm 1-15 is swung around the first rotation center 1-151 to drive the first valve link 1-12 to linearly reciprocate to open or close the first valve 1-11, and When the camshaft 1-14 rotates, the second swing arm 1-15' is swung around the first rotation center 1-15 to drive the second valve link 1-12' to linearly reciprocate to open or close the second valve 1-1. .

第一摆臂调节架 1-16绕自身的第一转动部 1-161转动以带动第一驱动部 1-162围绕第一转动部 1-161转动同时调节第一旋转中心 1-151的位置，第二摆臂调节架 1-16' 绕自身的第二转动部 1-161' 转动以带动第二驱动部 1-162'围绕第二转动部 1-161'转动同时调节第一旋转中心 1-15 的位置； The first swing arm adjusting frame 1-16 rotates around its first rotating portion 1-161 to drive the first driving portion 1-162 to rotate around the first rotating portion 1-161 while adjusting the position of the first rotating center 1-151. The second swing arm adjusting frame 1-16' rotates around its second rotating portion 1-161' to drive the second driving portion 1-162' to rotate around the second rotating portion 1-161' while adjusting the first rotating center 1- 15 position;

第一摆臂调节架 1-16上设有第一豁口 1-163, 第二摆臂调节架 1-16' 上设有第二豁口 1-163' , 第一豁口 1-163和第二豁口 1-163' 用于连接动力驱动机构 1-17, 从而动力驱动机构 1-17 中的部件可以容纳于第一豁口 1-163 和第二豁口 1-163' 内，节约了空间，使得可变气门升程驱动装置的结构更加紧凑。 The first swing arm adjustment frame 1-16 is provided with a first gap 1-163, and the second swing arm adjustment frame 1-16' is provided with a second gap 1-163', the first gap 1-163 and the second gap 1-163' is used to connect the power drive mechanism 1-17, so that the components in the power drive mechanism 1-17 can be accommodated in the first gap 1-163 and the second gap 1-163', saving space and making it variable Valve lift drive The structure is more compact.

这样当第一旋转中心 1-151 位于一个位置处时可以实现一种气门升程，当调整第一旋转中心 1-151使其位于另一个不同位置处时可以实现另一种不同的气门升程，当第一旋转中心 1-15 位于一个位置处时可以实现一种气门升程，当调整第一旋转中心 1-15 使其位于另一个不同位置处时可以实现另一种不同的气门升程。第一气门的气门升程可以与第二气门的气门升程相同或不同。因此可以根据发动机的不同使用工况对第一气门和第二气门的气门升程进行改变。本发明实施例中实现可变气门升程的方式与现有技术中使用组合式凸轮轴实现可变气门升程的方式不同，不会由于变更具有不同型线的凸轮来驱动各气门连杆运动而对凸轮轴、各气门连杆等零部件产生冲击作用，延长了凸轮轴、各气门连杆等相关零部件的使用寿命；而且由于不会在凸轮轴上设置多个具有不同型线的凸轮，因此与本发明实施例中的各摆臂配合使用的凸轮轴结构简单、质量小，降低了发动机的加工成本和燃油消耗量。 Thus, when the first rotation center 1-151 is located at one position, a valve lift can be realized, and when the first rotation center 1-151 is adjusted to be at another different position, another different valve lift can be realized. A valve lift can be achieved when the first center of rotation 1-15 is at a position, and another different valve lift can be achieved when the first center of rotation 1-15 is adjusted to be at a different position. . The valve lift of the first valve may be the same as or different from the valve lift of the second valve. Therefore, the valve lift of the first valve and the second valve can be changed depending on the operating conditions of the engine. The manner of realizing the variable valve lift in the embodiment of the present invention is different from the manner in which the combined camshaft is used to realize the variable valve lift in the prior art, and the movement of each valve link is not driven by changing the cams having different profiles. The impact on the camshaft and the valve connecting rods, etc., prolongs the service life of the camshafts, valve links and other related components; and because there are no cams with different profiles on the camshaft Therefore, the cam shaft used in combination with each swing arm in the embodiment of the present invention has a simple structure and a small mass, and reduces the processing cost and fuel consumption of the engine.

上述实施例提供的可变气门升程驱动装置中，第一摆臂调节架 1-16 铰接在发动机的位置固定的零部件上，例如铰接在发动机的盖体上，第一摆臂调节架 1-16能够围绕铰接处转动，因此第一转动部 1-161 的中心即为该铰接处，且该中心固定不动。当第一旋转中心 1-151位于第一位置时，使第一摆臂调节架 1-16围绕第一转动部 1-161 的转动某一角度，以使第一旋转中心 1— 151位于另一个不同于第一位置的第二位置。第二旋转中心 1-152可以与第一摆臂调节架 1-16的第一转动部 1-161 同轴设置，这样，如果得知了第一旋转中心 1-151从第一位置到第二位置的过程中，第一摆臂调节架 1-16围绕第一转动部 1-161所转过的角度值，也就能得知第一摆臂 1-15绕第二旋转中心 1-152所转过的角度值。当然，如果得知了第一摆臂 1-15绕第二旋转中心 1-152所转过的角度值，也就能得知第一摆臂调节架 1-16围绕第一转动部 1-161所转过的角度值。上述实施例提供的可变气门升程驱动装置中，第二摆臂调节架 1-16' 铰接在发动机的位置固定的零部件上，例如铰接在发动机的盖体上，第二摆臂调节架 1-16' 能够围绕铰接处转动，因此第二转动部 1-161' 的中心即为该铰接处，且该中心固定不动。当第一旋转中心 1-15 位于第一位置时，使第二摆臂调节架 1-16' 围绕第二转动部 1-161' 的转动某一角度，以使第一旋转中心 1-15 位于另一个不同于第一位置的第二位置。 In the variable valve lift driving device provided by the above embodiment, the first swing arm adjusting frame 1-16 is hinged to the fixed position component of the engine, for example, hinged on the cover of the engine, and the first swing arm adjusting frame 1 The -16 is rotatable about the hinge, so that the center of the first rotating portion 1-161 is the hinge, and the center is fixed. When the first rotation center 1-151 is in the first position, the first swing arm adjustment frame 1-16 is rotated about the first rotation portion 1-161 by an angle such that the first rotation center 1 - 151 is located at the other Different from the second position of the first position. The second rotation center 1-152 may be disposed coaxially with the first rotation portion 1-161 of the first swing arm adjustment frame 1-16, such that if the first rotation center 1-151 is known from the first position to the second During the position, the first swing arm adjusting frame 1-16 is rotated around the first rotating portion 1-161, and the first swing arm 1-15 is also known to be around the second rotating center 1-152. The angle value of the turn. Of course, if the angle value of the first swing arm 1-15 rotated around the second rotation center 1-152 is known, it can be known that the first swing arm adjustment frame 1-16 surrounds the first rotating portion 1-161. The angle value that was rotated. In the variable valve lift driving device provided by the above embodiment, the second swing arm adjusting frame 1-16' Hinged to the fixed position of the engine, for example hinged on the cover of the engine, the second swing arm adjuster 1-16' can rotate around the hinge, so the center of the second rotating portion 1-161' is Hinged, and the center is fixed. When the first rotation center 1-15 is in the first position, the second swing arm adjustment frame 1-16' is rotated around the second rotation portion 1-161' so that the first rotation center 1-15 is located. Another second location that is different from the first location.

第二旋转中心 1— 152' 可以与第二摆臂调节架 1-16' 的第二转动部 1-161' 同轴线设置，这样，如果得知了第一旋转中心 1-15 从第一位置到第二位置的过程中，第二摆臂调节架 1-16' 围绕第二转动部 1-161' 所转过的角度值，也就能得知第二摆臂 1-15' 绕第二旋转中心 1-152' 所转过的角度值。当然，如果得知了第二摆臂 1-15' 绕第二旋转中心 1-152' 所转过的角度值，也就能得知第二摆臂调节架 1-16' 围绕第二转动部 1-16 所转过的角度值。如图 3所示，上述实施例提供的可变气门升程驱动装置中，还可以包括位于凸轮轴 1-14、第一摆臂调节架 1-16及第二摆臂调节架 1-16' 之间的轴承座 1-21, 轴承座 1-21具有连接部 1-211, 第一转动部 1-161及第二转动部 1— 16 共同与连接部 1—211活动连接。这样轴承座 1-21能够对凸轮轴 1-14起到支承作用，使得凸轮轴的承重能力更好。同时，轴承座连接在发动机缸盖上，使得与其上连接部 1-211 活动连接的第一转动部 1-161及第二转动部 1-16 位置固定，从而使第一摆臂调节架 1-16及第二摆臂调节架 1-16' 的位置固定，使得上述可变气门升程驱动装置的结构更加简单、紧凑。上述实施例提供的可变气门升程驱动装置中，再次参见图 3, 还可以包括动力驱动机构 1-17,动力驱动机构 1-17能够驱动第一摆臂调节架 1-16 绕自身的第一转动部 1-161转动以带动第一驱动部 1-162围绕第一转动部 1-161转动同时调节第一旋转中心 1-151 的位置，还能够驱动第二摆臂调节架 1-16' 绕自身的第二转动部 1-16 转动以带动第二驱动部 1-162' 围绕第二转动部 1-16 转动同时调节第一旋转中心 1-15 的位置，使得第一摆臂调节架 1-16、第二摆臂调节架 1-16' 转动效果更好。上述实施例提供的可变气门升程驱动装置中，第一豁口 1-163及第二豁口 1— 163' 的表面形状均可以为 U型。 U型的豁口易于加工，也便于卡设动力驱动机构 1-17。当然，第一豁口 1-163及第二豁口 1-163' 的表面形状不局限于 U型，也可以为其他易于加工的形状。上述实施例提供的可变气门升程驱动装置中，第一豁口 1-163的表面形状可以与第二豁口 1-163' 的表面形状不相同。由于第一豁口 1-163与第二豁口 1— 163' 的表面形状不相同，即第一豁口 1-163、第二豁口 1-163' 的表面与动力驱动机构接触点就不同，那么第一摆臂调节架 1-16和第二摆臂调节架 1-16' 上的第一驱动部 1-162和第二驱动部 1-162' 的位置也就不同从进而使第一气门 1-11与第二气门 1-1 的气门升程不同。也就是说能够实现第一气门 1-11和第二气门 1-1 的不同开度。因此，应用本发明实施例中的可变气门升程驱动装置，可以使发动机在不同工况下在同一气缸中的第一气门和第二气门升程不同，能够实现在某个工况下调节两个气门的开度不一致来提高了发动机在该工况下燃料的燃烧效率，从而提供发动机的动力性、经济性和怠速稳定性。同时，也可以降低发动机尾气的排放量。 The second rotation center 1 - 152' may be disposed coaxially with the second rotation portion 1-161' of the second swing arm adjustment frame 1-16', so that if the first rotation center 1-15 is known from the first During the position to the second position, the angle of the second swing arm 1-16' rotated around the second rotating portion 1-161' can also be known that the second swing arm 1-15' The angle value of the two rotation centers 1-152'. Of course, if the angle value of the second swing arm 1-15' rotated around the second rotation center 1-152' is known, it can be known that the second swing arm adjustment frame 1-16' surrounds the second rotation portion. 1-16 The angle value that was rotated. As shown in FIG. 3, the variable valve lift driving device provided in the above embodiment may further include a cam shaft 1-14, a first swing arm adjusting frame 1-16, and a second swing arm adjusting frame 1-16'. Between the bearing blocks 1-21, the bearing housing 1-21 has a connecting portion 1-211, and the first rotating portion 1-161 and the second rotating portion 1-16 are movably connected to the connecting portion 1-211. Thus, the bearing housing 1-21 can support the cam shaft 1-14, so that the bearing capacity of the cam shaft is better. At the same time, the bearing housing is connected to the engine cylinder head, so that the first rotating portion 1-161 and the second rotating portion 1-16 which are movably connected to the upper connecting portion 1-211 are fixed in position, so that the first swing arm adjusting frame 1 - The position of the 16 and second swing arm adjustment brackets 1-16' is fixed, so that the structure of the variable valve lift driving device is simpler and more compact. In the variable valve lift driving device provided by the above embodiment, referring again to FIG. 3, the power driving mechanism 1-17 can also be included, and the power driving mechanism 1-17 can drive the first swing arm adjusting frame 1-16 around itself. A rotating portion 1-161 is rotated to drive the first driving portion 1-162 to rotate around the first rotating portion 1-161 while adjusting the position of the first rotating center 1-151, and is also capable of driving the second swing arm adjusting frame 1-16' Rotating around its own second rotating portion 1-16 to drive the second driving portion 1-162' to rotate around the second rotating portion 1-16 while adjusting the position of the first rotating center 1-15, so that the first swing arm adjusting frame 1 -16, The second swing arm adjustment frame 1-16' has better rotation effect. In the variable valve lift driving device provided in the above embodiment, the surface shapes of the first gap 1-163 and the second gap 1 - 163' may both be U-shaped. The U-shaped gap is easy to process, and it is also convenient to set the power drive mechanism 1-17. Of course, the surface shape of the first gap 1-163 and the second gap 1-163' is not limited to the U shape, and may be other shapes that are easy to process. In the variable valve lift driving device provided by the above embodiment, the surface shape of the first gap 1-163 may be different from the surface shape of the second gap 1-163'. Since the surface shape of the first gap 1-163 and the second gap 1 - 163' are different, that is, the surface of the first gap 1-163 and the second gap 1-163' is different from the contact point of the power driving mechanism, then the first The positions of the first driving portion 1-162 and the second driving portion 1-162' on the swing arm adjusting frame 1-16 and the second swing arm adjusting frame 1-16' are different from each other to thereby make the first valve 1-11 It is different from the valve lift of the second valve 1-1. That is to say, different opening degrees of the first valve 1-11 and the second valve 1-1 can be achieved. Therefore, the variable valve lift driving device in the embodiment of the present invention can make the first valve and the second valve lift in the same cylinder different under different working conditions, and can be adjusted under certain working conditions. The opening of the two valves is inconsistent to improve the combustion efficiency of the engine under this condition, thereby providing the engine's power, economy and idle stability. At the same time, it can also reduce the emissions of engine exhaust.

上述实施例提供的可变气门升程驱动装置中，如图 4所示，动力驱动机构 1-17包括曲拐轴 1-31及驱动曲拐轴 1-31旋转的伺服电机（图中未示出）；曲拐轴 1-31 包括同轴设置的两个直线部 1-311 和位于两个直线部 1-311之间且固定连接两个直线部的曲拐部 1-312,两个直线部 1-311的轴线与曲拐部 1-312的轴线平行且之间具有指定的距离，第一豁口 1-163及第二豁口 1— 163' 均卡接曲拐部 1-312。如果曲拐部 1-312相对于第一豁口 1-163或第二豁口 1-163' 转动，将损耗一部分能量，传递动力的效率较低。本实施例中，第一豁口 1-163 和第二豁口 1— 163' 均与曲拐轴 1-31 上的曲拐部 1-312 卡接。即曲拐部 1-312与第一豁口 1-163或第二豁口 1-163' 之间均无相对运动，从而使得曲拐部 1-312能够直接把动力传递给第一摆臂调节架 1-16和第二摆臂调节架 1-16' , 能量损失较少，传递效率较高。上述实施例提供的可变气门升程驱动装置中，参见图 5和图 6, 第一驱动部 1-162还可以包括设于第一摆臂调节架 1-16上的第四通孔 1-41及设于第四通孔 1-41 内的第一驱动轴 1-42, 第一驱动轴 1-42与第一旋转中心 1-151活动连接；第二驱动部 1-162' 包括设于第二摆臂调节架 1-16' 上的第五通孔 1-51及设于第五通孔 1-51 内的第二驱动轴 1-52, 第二驱动轴 1-52与第一旋转中心 1-15 活动连接。这样第一摆臂 1-15 能够绕第一驱动轴 1-42转动，第一驱动轴 1-42 与第一旋转中心 1-151 共用一个轴，大大降低了装配时确保第一驱动轴 1-42与第一旋转中心 1-151 同轴的难度。同样地，第二摆臂 1-15' 能够绕第二驱动轴 1—52转动，第二驱动轴 1-52与第二旋转中心 1-152' 共用一个轴，大大降低了装配时确保第二驱动轴 1-52与第二旋转中心 1-152' 同轴线的难度。此外，第一驱动轴 1-42能够直接将第一摆臂调节架 1-16上的动力传递给与其活动链接的第一摆臂 1-15, 而无需再设置其他的传递动力的零件。不难看出，第二驱动轴 1-52也是同样道理。上述实施例提供的可变气门升程驱动装置中，再次参见图 3第二旋转中心 1-152 可以为设在第一摆臂 1-15 的第六通孔 1-153, 第二旋转中心 1-152' 可以为设在第二摆臂的第七通孔 1-153' ；第六通孔 1-153 内安装有第一摆臂滚子 1-154, 第一摆臂滚子 1-154与凸轮轴 1-14上的第一凸轮 1-141相接触；第七通孔 1-153' 内安装有第二摆臂滚子 1-154' ，第二摆臂滚子 1-154' 与凸轮轴 1-14上的第二凸轮 1-142相接触。这样第一摆臂滚子 1-154和第二摆臂滚子 1-154' 可以巧妙地将第二旋转中心 1— 152和第二旋转中心 1-152' 的位置临时固定，以便驱动第一摆臂 1-15 围绕第二旋转中心 1-152转动，以及第二摆臂 1-15' 围绕第二旋转中心 1-152' 转动。具体为将第一摆臂滚子 1-154和第二摆臂滚子 1-154' 抵靠在与它们接触的其他零部件上使第一摆臂滚子 1-154和第二摆臂滚子 1-154' 固定不动。第一摆臂滚子 1-154可以与凸轮轴 1-14上的第一凸轮 1-141相接触，第二摆臂滚子 1-154' 与凸轮轴 1-14上的第二凸轮 1-142相接触。然后驱动第一摆臂 1-15和第二摆臂 1-15' 转动以使第一摆臂 1-15能够围绕第二旋转中心 1-152旋转、第二摆臂 1-15' 能够围绕第二旋转中心 1-152' 旋转。 In the variable valve lift driving device provided by the above embodiment, as shown in FIG. 4, the power driving mechanism 1-17 includes a crank shaft 1-31 and a servo motor that drives the crank shaft 1-31 to rotate (not shown) The crank shaft 1-31 includes two straight portions 1-311 disposed coaxially and a crank portion 1-312 located between the two straight portions 1-311 and fixedly connecting the two straight portions, two straight lines The axis of the portion 1-311 is parallel to the axis of the crank portion 1-312 and has a specified distance therebetween, and the first gap 1-163 and the second gap 1 - 163' are all engaged with the crank portion 1-312. If the crank portion 1-312 is rotated relative to the first gap 1-163 or the second gap 1-163', a part of the energy will be lost, and the efficiency of transmitting power is low. In this embodiment, the first gap 1-163 and the second gap 1-163' are all engaged with the crank portion 1-312 on the crank shaft 1-31. That is, there is no relative movement between the crank portion 1-312 and the first gap 1-163 or the second gap 1-163', so that the crank portion 1-312 can directly transmit power to the first swing arm adjustment frame 1 -16 and the second swing arm adjustment frame 1-16' have less energy loss and higher transmission efficiency. In the variable valve lift driving device provided by the above embodiment, referring to FIG. 5 and FIG. 6, the first driving portion 1-162 may further include a fourth through hole 1 - 1 disposed on the first swing arm adjusting frame 1-16 41 and a first driving shaft 1-42 disposed in the fourth through hole 1-41, the first driving shaft 1-42 is movably connected to the first rotating center 1-151; the second driving portion 1-162' is included in a fifth through hole 1-51 on the second swing arm adjusting frame 1-16' and a second driving shaft 1-52 disposed in the fifth through hole 1-51, the second driving shaft 1-52 and the first rotation Center 1-15 active connection. Thus, the first swing arm 1-15 can rotate about the first drive shaft 1-42, and the first drive shaft 1-42 shares one axis with the first rotation center 1-151, which greatly reduces the first drive shaft 1 during assembly. The difficulty of 42 coaxial with the first rotation center 1-151. Similarly, the second swing arm 1-15' can rotate about the second drive shaft 1-52, and the second drive shaft 1-52 shares a shaft with the second rotation center 1-152', which greatly reduces the second time during assembly. The difficulty of the drive shaft 1-52 and the second rotation center 1-152' on the same axis. In addition, the first drive shaft 1-42 can directly transmit power on the first swing arm mount 1-16 to the first swing arm 1-15 with its active link without the need to provide additional power transmitting components. It is not difficult to see that the second drive shaft 1-52 is the same. In the variable valve lift driving device provided by the above embodiment, referring again to FIG. 3, the second rotation center 1-152 may be a sixth through hole 1-153 disposed on the first swing arm 1-15, and the second rotation center 1 -152' may be a seventh through hole 1-153' provided in the second swing arm; a first swing arm roller 1-154 is installed in the sixth through hole 1-153, the first swing arm roller 1-154 Contacting the first cam 1-141 on the camshaft 1-14; installing the second swing arm roller 1-154' in the seventh through hole 1-153', the second swing arm roller 1-154' and The second cams 1-142 on the camshafts 1-14 are in contact. Thus, the first swing arm roller 1-154 and the second swing arm roller 1-154' can skillfully fix the positions of the second rotation center 1-152 and the second rotation center 1-152' to drive the first The swing arm 1-15 rotates about the second rotation center 1-152, and the second swing arm 1-15' rotates about the second rotation center 1-152'. Specifically, the first swing arm roller 1-154 and the second swing arm roller 1-154' are abutted against other components in contact with the first swing arm roller 1-154 and the second swing arm. Sub 1-154' is fixed. The first swing arm roller 1-154 can be in contact with the first cam 1-141 on the camshaft 1-14. The second swing arm roller 1-154' is in contact with the second cam 1-142 on the camshaft 1-14. The first swing arm 1-15 and the second swing arm 1-15' are then driven to rotate so that the first swing arm 1-15 can rotate about the second rotation center 1-152, and the second swing arm 1-15' can surround the first The second rotation center 1-152' rotates.

在第一摆臂 1-15 围绕第二旋转中心 1-152旋转、第二摆臂 1-15' 能够围绕第二旋转中心 1-152' 旋转的运动完成后，凸轮轴 1-14转动，凸轮轴 1-14 上的第一凸轮 1-141 的大端抵靠第一摆臂滚子 1-154, 第二凸轮 1-142的大端抵靠第二摆臂滚子 1-154' , 从而第一摆臂滚子 1-154带动第一摆臂 1-15 围绕第一旋转中心 1-151摆动、第二摆臂 1-15' 围绕第一旋转中心 1-15 摆动。以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。 After the first swing arm 1-15 rotates around the second rotation center 1-152 and the second swing arm 1-15' can rotate about the second rotation center 1-152', the cam shaft 1-14 rotates, the cam The large end of the first cam 1-141 on the shaft 1-14 abuts against the first swing arm roller 1-154, and the large end of the second cam 1-142 abuts against the second swing arm roller 1-154', thereby The first swing arm roller 1-154 drives the first swing arm 1-15 to swing around the first rotation center 1-151, and the second swing arm 1-15' swings around the first rotation center 1-15. The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any change or replacement that can be easily conceived by those skilled in the art within the technical scope of the present invention is All should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

权利要求书 claims

1、一种可变气门升程驱动装置，包括：气门、与气门连接的气门连杆、与气门连杆连接的气门摇臂、以及驱动气门打开或关闭的凸轮轴，其特征在于，在气门摇臂和凸轮轴之间设有摆臂和摆臂调节架，摆臂上设有第一旋转中心和第二旋转中心，凸轮轴转动时带动摆臂围绕第一旋转中心摆动以驱动气门连杆直线往复运动实现气门的打开或闭合； 1. A variable valve lift driving device, including: a valve, a valve connecting rod connected to the valve, a valve rocker connected to the valve connecting rod, and a camshaft that drives the valve to open or close, characterized in that, on the valve A swing arm and a swing arm adjustment frame are provided between the rocker arm and the camshaft. The swing arm is provided with a first rotation center and a second rotation center. When the camshaft rotates, the swing arm is driven to swing around the first rotation center to drive the valve connecting rod. Linear reciprocating motion realizes the opening or closing of the valve;

摆臂调节架具有转动部、驱动部，所述驱动部与所述摆臂的第一旋转中心活动连接；所述摆臂调节架绕所述转动部转动，以带动摆臂围绕第二旋转中心转动同时调节第一旋转中心的位置； The swing arm adjustment frame has a rotating part and a driving part. The driving part is movably connected with the first rotation center of the swing arm; the swing arm adjustment frame rotates around the rotating part to drive the swing arm around the second rotation center. Rotate while adjusting the position of the first rotation center;

所述摆臂调节架还具有豁口，所述豁口用于连接动力驱动机构；所述动力驱动机构用于驱动所述摆臂调节架绕所述转动部转动，以带动摆臂围绕第二旋转中心转动同时调节第一旋转中心的位置。 The swing arm adjustment frame also has a gap, and the gap is used to connect a power drive mechanism; the power drive mechanism is used to drive the swing arm adjustment frame to rotate around the rotation part to drive the swing arm around the second rotation center. Rotate while adjusting the position of the first rotation center.

2、根据权利要求 1所述的可变气门升程驱动装置，其特征在于，所述第二旋转中心与所述转动部的中心轴同轴线设置。 2. The variable valve lift driving device according to claim 1, wherein the second rotation center is coaxially arranged with the central axis of the rotating part.

3、根据权利要求 1所述的可变气门升程驱动装置，其特征在于，所述豁口的表面形状为 U型，所述动力驱动机构包括偏心轴及驱动所述偏心轴旋转的动力源，所述豁口与所述偏心轴上的偏心轮卡接。 3. The variable valve lift driving device according to claim 1, wherein the surface shape of the notch is U-shaped, the power driving mechanism includes an eccentric shaft and a power source that drives the eccentric shaft to rotate, The gap is engaged with the eccentric wheel on the eccentric shaft.

4、根据权利要求 1或 2所述的可变气门升程驱动装置，其特征在于，还包括固定在发动机缸盖上的轴承座，所述轴承座与所述转动部连接，并支承所述凸轮轴。 4. The variable valve lift driving device according to claim 1 or 2, further comprising a bearing seat fixed on the engine cylinder head, the bearing seat being connected to the rotating part and supporting the Camshaft.

5、根据权利要求 1所述的可变气门升程驱动装置，其特征在于，还包括套设在所述驱动部上回位弹簧，所述回位弹簧一端与所述摆臂调节架固定连接，另一端与所述摆臂固定连接。 5. The variable valve lift driving device according to claim 1, further comprising a return spring sleeved on the driving part, one end of the return spring being fixedly connected to the swing arm adjustment frame , the other end is fixedly connected to the swing arm.

6、根据权利要求 1所述的可变气门升程驱动装置，其特征在于，第一旋转中心为第一通孔，第一通孔内设有第一销轴，所述摆臂通过第一销轴与所述摆臂调节架上的驱动部活动连接；第二旋转中心为第二通孔，第二通孔内设有第二销轴，第二销轴上设有与凸轮轴配合运动的摆臂滚子。 6. The variable valve lift driving device according to claim 1, wherein the first rotation center is a first through hole, a first pin is provided in the first through hole, and the swing arm passes through the first through hole. The pin is movably connected to the driving part on the swing arm adjustment frame; the second rotation center is a second through hole, a second pin is provided in the second through hole, and the second pin is provided with a movement mechanism that cooperates with the camshaft. of swing arm rollers.

7、根据权利要求 5所述的可变气门升程驱动装置，其特征在于，所述驱动部包括设于所述摆臂调节架上的第三通孔及设于第三通孔内的驱动轴，所述驱动轴与所述第一销轴活动连接。 7. The variable valve lift driving device according to claim 5, wherein the driving part includes a third through hole provided on the swing arm adjustment frame and a driving member provided in the third through hole. shaft, the driving shaft is movably connected with the first pin.

8、根据权利要求 1所述的可变气门升程驱动装置，其特征在于，所述气门包括第一气门和第二气门，所述气门连杆包括与第一气门连接的第一气门连杆和与第二气门连接的第二气门连杆，所述气门摇臂包括与第一气门连杆连接的第一气门摇臂和与第二气门连杆连接的第二气门摇臂，所述摆臂包括第一摆臂和第二摆臂，所述摆臂调节架包括第一摆臂调节架和第二摆臂调节架，所述第一摆臂和第一摆臂调节架设置于所述第一气门摇臂和凸轮轴之间，所述第二摆臂和第二摆臂调节架设置于所述第二气门摇臂和凸轮轴之间，所述第一摆臂调节架和第二摆臂调节架上均具有所述第一旋转中心和第二旋转中心，所述第一摆臂调节架具有第一转动部和第一驱动部，所述第一驱动部与所述第一摆臂调节架上的第一旋转中心活动连接，所述第二摆臂调节架具有第二转动部和第二驱动部，所述第二驱动部与所述第二摆臂调节架上的第一旋转中心活动连接； 8. The variable valve lift driving device according to claim 1, wherein the valve includes a first valve and a second valve, and the valve connecting rod includes a first valve connecting rod connected to the first valve. and a second valve connecting rod connected to the second valve, the valve rocker arm includes a first valve rocker arm connected to the first valve connecting rod and a second valve rocker arm connected to the second valve connecting rod, the swing arm The arm includes a first swing arm and a second swing arm, the swing arm adjustment frame includes a first swing arm adjustment frame and a second swing arm adjustment frame, the first swing arm and the first swing arm adjustment frame are arranged on the between the first valve rocker arm and the camshaft, the second swing arm and the second swing arm adjusting bracket are arranged between the second valve rocker arm and the camshaft, the first swing arm adjusting bracket and the second swing arm adjusting bracket are arranged between the second valve rocker arm and the camshaft. The swing arm adjustment frame has the first rotation center and the second rotation center. The first swing arm adjustment frame has a first rotating part and a first driving part. The first driving part is connected with the first swing arm. The first rotation center on the arm adjustment frame is movably connected, the second swing arm adjustment frame has a second rotating part and a second driving part, the second driving part is connected to the first rotation center on the second swing arm adjustment frame. Rotation center active connection;

凸轮轴转动时带动第一摆臂围绕所述第一摆臂调节架上的第一旋转中心摆动以驱动第一气门连杆直线往复运动实现第一气门的打开或闭合，并且凸轮轴转动时带动第二摆臂围绕所述第二摆臂调节架上的第一旋转中心摆动以驱动第二气门连杆直线往复运动实现第二气门的打开或闭合； When the camshaft rotates, it drives the first swing arm to swing around the first rotation center on the first swing arm adjustment frame to drive the first valve connecting rod to linearly reciprocate to open or close the first valve, and when the camshaft rotates, it drives The second swing arm swings around the first rotation center on the second swing arm adjustment frame to drive the second valve connecting rod to linearly reciprocate to open or close the second valve;

第一摆臂调节架绕自身的第一转动部转动以带动第一驱动部围绕第一转动部转动同时调节第一摆臂调节架上的第一旋转中心的位置，第二摆臂调节架绕自身的第二转动部转动以带动第二驱动部围绕第二转动部转动同时调节第二摆臂调节架上的第一旋转中心的位置； The first swing arm adjustment frame rotates around its first rotating part to drive the first driving part to rotate around the first rotating part while adjusting the position of the first rotation center on the first swing arm adjustment frame, and the second swing arm adjustment frame rotates around its own first rotating part. The second rotating part of itself rotates to drive the second driving part to rotate around the second rotating part while adjusting the position of the first rotation center on the second swing arm adjustment frame;

所述第一摆臂调节架和所述第二摆臂调节架上均设有所述豁口，所述第一摆臂调节架上的豁口为第一豁口，所述第二摆臂调节架上的豁口为第二豁口，所述第一豁口和第二豁口用于连接所述动力驱动机构，所述动力驱动机构用于驱动第一摆臂调节架绕自身的第一转动部转动以带动第一驱动部围绕第一转动部转动同时调节第一摆臂调节架上的第一旋转中心的位置，还用于驱动第二摆臂调节架绕自身的第二转动部转动以带动第二驱动部围绕第二转动部转动同时调节第二摆臂调节架上的第一旋转中心的位置。 The first swing arm adjustment frame and the second swing arm adjustment frame are both provided with the gap, the gap on the first swing arm adjustment frame is the first gap, and the second swing arm adjustment frame is The gap is a second gap, and the first gap and the second gap are used to connect the power driving mechanism. The power driving mechanism is used to drive the first swing arm adjustment frame to rotate around its first rotating part to drive the third swing arm adjustment frame. One drive The moving part rotates around the first rotating part while adjusting the position of the first rotation center on the first swing arm adjusting frame, and is also used to drive the second swing arm adjusting frame to rotate around its second rotating part to drive the second driving part around The second rotating part rotates while adjusting the position of the first rotation center on the second swing arm adjustment frame.

9、根据权利要求 8所述的可变气门升程驱动装置，其特征在于，所述第一转动部与所述第一摆臂调节架上的第二旋转中心同轴设置。 9. The variable valve lift driving device according to claim 8, wherein the first rotating part is coaxially arranged with the second rotation center on the first swing arm adjustment frame.

10、根据权利要求 8所述的可变气门升程驱动装置，其特征在于，所述第二转动部与所述第二摆臂调节架上的第二旋转中心同轴设置。 10. The variable valve lift driving device according to claim 8, wherein the second rotating part is coaxially arranged with the second rotation center on the second swing arm adjustment frame.

11、根据权利要求 8所述的可变气门升程驱动装置，其特征在于，还包括位于所述凸轮轴、第一摆臂调节架及第二摆臂调节架之间的轴承座，所述轴承座具有连接部，所述第一转动部及所述第二转动部共同与所述连接部活动连接。 11. The variable valve lift driving device according to claim 8, further comprising a bearing seat located between the camshaft, the first swing arm adjustment frame and the second swing arm adjustment frame, The bearing seat has a connecting part, and the first rotating part and the second rotating part are movably connected to the connecting part.

12、根据权利要求 8所述的可变气门升程驱动装置，其特征在于，所述第一豁口的表面形状与所述第二豁口的表面形状不相同。 12. The variable valve lift driving device according to claim 8, wherein the surface shape of the first gap and the surface shape of the second gap are different.

13、根据权利要求 8所述的可变气门升程驱动装置，其特征在于，所轴包括同轴设置的两个直线部和位于两个直线部之间且固定连接两个直线部的曲拐部，所述两个直线部的轴线与所述曲拐部的轴线平行且之间具有指定的距离，所述第一豁口及第二豁口均卡接所述曲拐部。 13. The variable valve lift driving device according to claim 8, wherein the shaft includes two linear portions arranged coaxially and a crank located between the two linear portions and fixedly connecting the two linear portions. part, the axes of the two straight parts are parallel to the axis of the crank part and have a specified distance between them, and the first and second notches are both engaged with the crank part.

14、根据权利要求 8-11 中任一项所述的可变气门升程驱动装置，其特征在于，所述第一驱动部包括设于所述第一摆臂调节架上的第四通孔及设于所述第四通孔内的第一驱动轴，所述第一驱动轴与第一摆臂调节架上的第一旋转中心活动连接； 14. The variable valve lift driving device according to any one of claims 8-11, wherein the first driving part includes a fourth through hole provided on the first swing arm adjustment frame. And a first drive shaft located in the fourth through hole, the first drive shaft is movably connected to the first rotation center on the first swing arm adjustment frame;

所述第二驱动部包括设于所述第二摆臂调节架上的第五通孔及设于所述第五通孔内的第二驱动轴，所述第二驱动轴与所述第二摆臂调节架上的第一旋转中心活动连接。 The second driving part includes a fifth through hole provided on the second swing arm adjustment frame and a second drive shaft provided in the fifth through hole, and the second drive shaft and the second The first rotation center on the swing arm adjustment frame is movably connected.

15、根据权利要求 8所述的可变气门升程驱动装置，其特征在于，所述第一摆臂调节架上的第二旋转中心为设在第一摆臂的第六通孔，所述第二摆臂调节架上的第二旋转中心为设在第二摆臂的第七通孔；第六通孔内安装有第一摆臂滚子，所述第一摆臂滚子与所述凸轮轴上的第一凸轮相接触；第七通孔内安装有第二摆臂滚子，所述第二摆臂滚子与所述凸轮轴上的第二凸轮相接触。 15. The variable valve lift driving device according to claim 8, characterized in that: The second rotation center on the first swing arm adjustment frame is the sixth through hole provided on the first swing arm, and the second rotation center on the second swing arm adjustment frame is the seventh through hole provided on the second swing arm. through hole; a first swing arm roller is installed in the sixth through hole, and the first swing arm roller is in contact with the first cam on the camshaft; a second swing arm roller is installed in the seventh through hole The second swing arm roller is in contact with the second cam on the camshaft.