CN104066930A - 具有成角度的旋转轴线的凸轮从动件 - Google Patents
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- F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups
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- F01B9/06—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft the piston motion being transmitted by curved surfaces
- F01B2009/061—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with rotary main shaft other than crankshaft the piston motion being transmitted by curved surfaces by cams
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Abstract
本发明涉及一种旋转驱动件,包括:纵向轴线(8),该纵向轴线(8)限定长度方向;弯曲的凸轮接触面(12),该弯曲的凸轮接触面(12)绕纵向轴线形成封闭的轮廓并且在长度方向上延伸;往复件(4),该往复件(4)具有在长度方向上能够移动的支架(5)。至少一个凸轮从动轮(7)通过凸轮从动轴(6)可旋转地安装在支架上,凸轮从动轴(6)在横向于长度方向的方向上延伸。轮具有与凸轮接触面(12)接合的轮接触面,以沿着凸轮接触面滚动并驱动凸轮接触面绕纵向轴线(8)旋转。凸轮从动轴(6)相对于横向方向成α角,以消除轮与凸轮表面之间的间隙并避免干涉。在滚子具有轴向负载的情况下,支架上不产生径向力。流体供给管(28)延伸穿过圆柱形主体,并且将流体压力源连接至横向端部部分和环形轮之间的空间,以使圆柱形主体相对于轮轴向移动。通过这种方式获得轮表面和凸轮之间的最佳接触力。流体供给管(25,28)穿过圆柱形主体(15)延伸,并且将流体压力源连接至横向端部部分(17)和环形轮(7)之间的空间,以关于环形轮(7)轴向移动圆柱形主体(15)。通过这种方式,实现凸轮从动轮的轴向位置的容易且精确的调节。
Description
技术领域
本发明涉及一种旋转驱动件,该旋转驱动件包括:纵向轴线,该纵向轴线限定长度方向;弯曲的凸轮接触面,该弯曲的凸轮接触面绕所述纵向轴线形成封闭的轮廓并且在长度方向上延伸;往复件,该往复件具有长度方向上能够移动的支架;至少一个凸轮从动轮,该凸轮从动轮通过凸轮从动轴可旋转地安装在所述支架上,所述凸轮从动轴在横向于所述长度方向的方向上延伸,并且该凸轮从动轴相对于所述横向方向成α角,所述凸轮从动轮具有与所述凸轮接触面接合的轮接触面,以沿所述凸轮接触面滚动并且驱动所述凸轮接触面绕所述纵向轴线旋转,其中,所述凸轮接触面大致处于所述横向方向上。
背景技术
在这类驱动系统中,旋转凸轮与凸轮滚子结合,将活塞的振荡的线性运动转变为凸轮表面的旋转运动。比如从现有技术文献U.S.1339276、U.S.1352985、U.S.1788140和U.S.5375567中已知的是,将这类驱动系统应用到发电机、内燃机、能量转换器或混合驱动(发电机/发动机结合)中。
在EP2138687中描述了:往复件包括活塞,旋转凸轮驱动线圈以产生电能。在这些已知的驱动系统中,与滚子结合的旋转凸轮件用于将凸轮的旋转运动转变为平移运动以推拉活塞。已知的是,滚子的离中心的纵向轴线最近的内侧边缘需要比位于离中心轴线更远的外侧边缘走过更短的距离。众所周知的是,为了提高滚子的耐久性和性能,这些滚子设置有锥形形状,以便于当滚轮沿着凸轮表面的弯曲路径运动时不滑动。通过提供具有外侧直径大且内侧直径小的锥形滚子的滚轮,在旋转的过程中将实现滚轮沿着近似完美的圆形路径运行,以便于当滚轮沿弯曲的凸轮表面滚动时不发生滑动。为了在旋转凸轮和滚子的轮接触面之间具有直线接触而不是点接触,已知的是将旋转凸轮表面的方向与锥形滚子的角度匹配。
已知的是,如果凸轮从动件(与滚子轴和驱动件结合)的锥形滚子相对于凸轮表面径向移动(例如朝向和远离中心纵向轴线),那么滚子和旋转凸轮的凸轮表面之间的间隙将改变。滚轮远离中心轴线朝向凸轮表面外侧的径向移动会导致异响和功率损耗,并使滚子和凸轮的耐久性和性能恶化。朝向中心轴线的移动将引起过大的预压以及性能和耐久性的恶化,并且可能导致凸轮表面和滚轮的干涉。
已知的是,在操作过程中,锥形轮主要轴向地抵靠旋转凸轮表面。由于旋转凸轮的表面的角度,产生相对于旋转凸轮的径向力。这使得安装滚子的支架在径向方向上被挤压,从而支架的纵向导轨将面临额外的负载,从而引起耐久性和性能的恶化。这种作用力还将引起不必要的间隙。
如果滚轮在旋转凸轮的内侧安装,与驱动件结合的锥形轮的装配将相对困难。
成角度的轴线或安装有凸轮从动件滚子的轴安装在支架上,避免滚子相对于凸轮表面的径向移动、滚轮和凸轮表面之间的间隙改变,并且因此避免不必要的间隙和干涉。
滚子通过成角度的轴安装在支架上,在滚子上产生轴向负载的情况下,在支架上不引入径向力,并且在组装或拆卸驱动系统的情况下,滚轮组件将容易被安装。
美国专利1,375,140公开了一种内燃机,在该内燃机中,通过由活塞支撑的成角度的滚子与形成在转子周缘的肋边的配合,使活塞的往复转变为轴的旋转运动。为了提供滚子沿肋边的真实的旋转运动,必须根据凸轮肋边而精确地调整滚子。为此,圆锥形滚子设置在推力轴承支撑的每一侧,所述推力轴承可通过螺栓调节。推力轴承可以由滚珠轴承或油膜形成。
本发明的目的是提供一种上述类型的驱动系统,在该驱动系统中,滚子沿凸轮接触面上弯曲的轨道移动,从而在相对于滚子的旋转凸轮件的径向移动的过程中,容易地改变滚子和凸轮之间的间隙。
本发明的另一目的是消除凸轮表面产生的径向力,同时将功率损耗和间隙最小化。
本发明的另外一个目的是提供一种驱动系统,在该驱动系统中,能够容易地调整轮接触面对凸轮表面的压力。
最后,根据本发明的驱动系统构造简单,并便于凸轮和滚轮的拆卸和安装(例如用于维护和修理)。
发明内容
为此,根据本发明的驱动系统的特征在于:流体供给管延伸穿过圆柱形主体,并且将流体压力源连接至横向端部部分和环形轮之间的空间,以关于环形轮轴向地移动所述圆柱形主体。
通过提供由油压驱动的滚子在其轴上的轴向位置的可调性,可以容易且精确地调整滚子和凸轮表面之间的间隙。在所述驱动系统的操作过程中,可以通过调节流体供给管中的油压完成这种调整。如果提供足够的油压,那么所述间隙将总是为零。
通过提供位于所述圆柱形主体内并位于流体管内的止回阀,以调整滚子的轴向位置,油液供给压可以保持较低,并且还可以产生所述滚子在所述凸轮接触面上的一定量的预紧力。在所述滚子上的轴向负载满载的过程中,所述止回阀可以避免轴向定位的油缸向后移动。除非所述滚子和所述凸轮表面之间没有间隙,当所述滚子没有满载时,油压将进行供给并且仅调整所述轴向定位油缸。
为了将油液从主支撑结构运输到用于安装所述滚子轴的线性往复支架中,所述主支撑结构上设置有充满油液的密封槽,所述主支撑结构设置为总是向所述支架的油液入口孔提供油液。在其他可选择的变形中,所述槽还可以设置在所述支架和所述主支撑结构的出口孔中。
附图说明
结合附图,将通过非限制性举例的方式详细描述根据本发明的旋转驱动件的多个具体实施方式。其中:
图1是根据现有技术的具有锥形滚子的已知的驱动系统的示意图,其中,滚子的凸轮从动轴垂直于长度方向;
图2是根据本发明的驱动系统的部分剖视示意图,在该驱动系统中,滚子的凸轮从动轴与长度方向成非垂直的角度,支架组件位于凸轮表面的外侧;
图3是根据本发明的驱动系统另一实施方式的部分剖视示意图,其中,支架组件位于凸轮表面内侧;
图4是锥形滚子的剖视图;
图5是弯曲的滚子的剖视图;
图6是滚子的剖视图,其中,通过垫片可在横向方向上调节凸轮从动件表面;
图7是滚子的剖视图,其中,通过油压可在横向方向上调节凸轮从动件表面;
图8是滚子安装在其支架上的横断面俯视图;以及
图9是具有4组滚子组件的主要的线性支撑结构沿图3中A-A线剖切的另一方向的视图。
具体实施方式
图1示出根据US1339276的旋转驱动系统的已知实施方式,该旋转驱动系统包括一个或多个气缸1,该气缸1具有进气门2和排气门3。可以振荡的活塞4位于气缸1内,支架或驱动件5连接于活塞4。在驱动件5上,安装有两个凸轮从动轴或滚子轴13。每个滚子轴13支撑可以绕该滚子轴13旋转的滚子7。这些滚子7为锥形并且安装为使其最小直径r1的侧面指向于旋转凸轮轴线8的中心。在两个滚子7之间设置有凸轮9,该凸轮9设置有朝向外侧的凸轮轨道10。这个凸轮9通过轴承11连接并且可以绕旋转凸轮轴线8旋转。在该凸轮9上,凸轮轨道表面12关于横向方向成γ角,该γ角与滚子锥形角β相匹配以在凸轮轨道表面12和滚子7之间具有接触线15。凸轮轴16能够可旋转地连接于被绕轴线8驱动旋转的装置。这种装置可以例如包括发电机或变速箱。所述凸轮9还可以用作飞轮。当凸轮9绕纵向凸轮轴线8旋转时,活塞4将产生振荡运动。
当活塞4从气缸1缩回时,燃料空气混合物通过打开的进气门2分配至中央燃烧室17。随着压缩冲程,进气门2关闭,燃料空气混合物被压缩。在压缩冲程的末尾附近,燃料空气混合物燃烧引起气体膨胀。在膨胀冲程的过程中,燃烧的气体推动活塞4。在排气冲程的过程中,燃烧气体通过打开的排气门3排出。
图2示出应用于凸轮发动机的根据本发明的驱动件,从而凸轮轨道10位于凸轮9的外侧。滚子轴13以α角安装并且支撑锥形滚子7。滚子具有滚子锥形角β。凸轮轨道10位于在两个滚子7之间。凸轮轨道表面12垂直于纵向轴线8。
图3示出应用于凸轮发动机的根据本发明的驱动件,其中,从内侧驱动凸轮轨道10。具有入口18和出口19的气缸1位于凸轮9的封闭的轮廓内。在气缸1内,两个活塞4可以在相反的方向上同轴移动。每个活塞4的驱动杆20连接于驱动件5,驱动件5通过驱动件5在纵向轴线8的方向上振荡移动。每个驱动件5可以在其线性移动支撑结构之间线性移动。4个滚子轴13以α角度成对安装在驱动件5上以支撑锥形凸轮从动滚子7。锥形凸轮从动滚子7具有锥形角β。凸轮轨道10设置在两个滚子7之间。滚轮7沿着凸轮轨道10使驱动件5、驱动杆20和活塞4以振荡的方式移动。当两侧活塞4都移动至其最相反的位置时,两侧气缸后的后室21内的气体被压缩。当两个活塞4将要到达其最相反的位置之前,出口19将打开以允许废气排出。接着入口18将打开,让活塞后面被压缩的新鲜空气进入气缸1中。这些被压缩的新鲜空气将废气压出气缸1。燃料通过喷油嘴22注入到吸入的气体中。当活塞4朝向彼此运动时,入口18和出口19将关闭,气体将被压缩。在压缩冲程中,后室21内的压力减小。这将使得簧片阀23打开以引入新鲜的外部空气。在压缩冲程的结尾附近,燃料空气混合物被点燃并且燃烧引起气缸1内的气体膨胀。在膨胀冲程的过程中,燃烧的气体推动活塞4。这种循环以例如100RPM至10.000RPM之间的频率不断重复。
图4示出驱动件5的详细的部分剖视视图,其中,滚子轴13的两个圆柱形主体15以α角成对安装,以支撑凸轮发动机上的锥形凸轮滚子7,其中从内侧接近凸轮轨道10。锥形凸轮滚子7具有锥形角β。锥形凸轮滚子7具有滑动轴承24。油液通过油液供给管25供给滑动轴承用于润滑。两个滚子7将凸轮轨道10围绕。
图5为细节图,其中,滚子7具有凸形的轮接触表面12。
图6为细节图,其中,滚子7和凸轮轨道10之间的间隙可以通过在凸轮滚子7和滚子轴13的推力端之间设置垫片26调节。
图7为细节图,其中,垫片26与滚子轴13的圆柱形主体15的横向端部17结合形成油液腔27,该油液腔27形成为液压执行器。套筒25绕圆柱形主体15设置并且封闭油液腔27。如果油液受压通过油液导管25、28进入油液腔27中,那么垫片26将从滚子7的推力端升起并且改变滚子7的轴向端部位置。当滚子7轴向移动时,凸轮轨道10和凸轮滚子7之间的间隙将调整到最小。图中还详细示出,油液导管28中安装有止回阀29,以在由于滚子载荷而使油缸油液腔27中的油压升至高于油液供给压力时阻止油液的回流。
图8为细节图,其中,驱动件5可以在其线性移动支撑结构30之间直线移动。线性移动支撑30固定于与支撑结构磨合的油缸1。供入油孔31的油液供给充满油液槽32的线性移动支撑结构30。部分油液供给用于润滑线性移动支撑结构30。驱动件5设置有引导至油液槽32的油液通道33,油液在油液槽32中受压。油液通道33与滚子轴25中的油液导管连接。部分油液用于润滑轴承24。部分油液供给液压油缸油液腔27以调整间隙。
最后,图9示出驱动件5及其线性移动支撑30,该线性移动支撑30与油缸1和其油液吸入孔31结合,从而为所述驱动系统供应油液。
Claims (5)
1.旋转驱动件,包括:纵向轴线(8),该纵向轴线(8)限定长度方向;弯曲的凸轮接触面(12),该弯曲的凸轮接触面(12)绕所述纵向轴线形成封闭的轮廓并且在所述长度方向上延伸;往复件(4),该往复件(4)具有在所述长度方向上能够移动的支架(5);至少一个凸轮从动轮(7),该凸轮从动轮(7)通过凸轮从动轴(6)可旋转地安装在所述支架上,所述凸轮从动轴(6)在横向于所述长度方向的方向上延伸,并且该凸轮从动轴(6)相对于所述横向方向成α角,所述凸轮从动轮(6)具有与所述凸轮接触面(12)接合的轮接触面,以沿着所述凸轮接触面滚动并驱动所述凸轮接触面绕所述纵向轴线(8)旋转,其中,所述凸轮接触面大致处于所述横向方向上,其中,所述凸轮从动轴(6)包括圆柱形主体和横向端部部分(17),所述轮接触面为绕所述圆柱形主体(15)安装的环形轮的一部分,并且在所述圆柱形主体的轴向方向上能够移动,其特征在于,流体供给管(25,28)延伸穿过所述圆柱形主体(15)并将流体压力源连接至所述横向端部部分(17)和所述环形轮(7)之间的空间,以相对于所述环形轮(7)轴向移动所述圆柱形主体(15)。
2.根据权利要求1所述的旋转驱动件,其中,所述流体供给管(28)包括位于所述圆柱形主体中的止回阀(29)。
3.根据权利要求1或2所述的旋转驱动件,其中,所述支架(5)包括两个相对的纵向侧面,每个侧面由在所述长度方向上延伸的滑动轴承(30)支撑,油液供给结构(31)连接于所述滑动轴承并且终止于所述滑动轴承和所述纵向侧面之间的间隙(32),在所述纵向侧面与所述圆柱形主体(15)中的所述流体供给管(28)之间,所述支架(5)设置有油液连接通道(33)。
4.根据权利要求1、2或3中所述的旋转驱动件,其中,绕所述圆柱形主体(15)设置有套筒,所述圆柱形主体中形成有推力腔(27),该推力腔(27)的一侧通过所述套筒界定,所述流体供给管(28)将所述流体压力源连接至所述推力腔(27)。
5.旋转驱动件,该旋转驱动件包括隔环(26),该隔环(26)在环形轮的顶面和横向端部部分之间至少部分地围绕圆柱形主体。
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NL2007988A NL2007988C2 (en) | 2011-12-16 | 2011-12-16 | Cam follower with an angled axis of rotation. |
PCT/NL2012/050880 WO2013095112A1 (en) | 2011-12-16 | 2012-12-12 | Cam follower with an angled axis of rotation |
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US (1) | US20150114148A1 (zh) |
EP (1) | EP2791468B1 (zh) |
CN (1) | CN104066930B (zh) |
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RU2568350C1 (ru) * | 2014-08-26 | 2015-11-20 | Николай Моисеевич Цовбун | Оппозитный бесшатунный поршневой двигатель внутреннего сгорания |
DE102015011354B4 (de) * | 2015-08-26 | 2021-06-10 | Ziyavdin Achmerzaev | Verbrennungsmotor in Axialkolbenbauweise |
US20190063399A1 (en) * | 2017-08-24 | 2019-02-28 | John Galveston Doud | Crankless engine |
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Also Published As
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PL2791468T3 (pl) | 2016-06-30 |
US20150114148A1 (en) | 2015-04-30 |
ES2559468T3 (es) | 2016-02-12 |
WO2013095112A1 (en) | 2013-06-27 |
EP2791468A1 (en) | 2014-10-22 |
CN104066930B (zh) | 2017-04-26 |
EP2791468B1 (en) | 2015-11-18 |
NL2007988C2 (en) | 2013-06-18 |
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