CN212744330U - 偏心轴式平动转子泵及发动机 - Google Patents
偏心轴式平动转子泵及发动机 Download PDFInfo
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Abstract
一种偏心轴式平动转子泵及发动机,包括第一偏心轴,第二偏心轴,转子和缸体,所述的第一偏心轴和第二偏心轴的偏心距相同且第一偏心轴第一轴和第二偏心轴第一轴都可转动的设置在缸体上,所述的第一偏心轴第二轴和第二偏心轴第二轴可转动的设置在转子上,在转子或/和缸体上设置有转子凹槽或/和缸体凹槽,滑片可在转子凹槽或/和缸体凹槽内滑动,且滑片与转子的外壁面或缸体的内壁面形成接合密封将位于滑片两侧的转子和缸体之间的空间隔开,同时转子外壁面和缸体内壁面形成接合密封的区域使处于转子和缸体之间的内部空间被分割成2个独立的空间,所述的2个独立的空间容积随转子转动发生周期性变化。
Description
技术领域
本发明涉及容积泵及发动机,尤其是真空泵,压缩泵,空压机,鼓风机,气体输送泵,液体输送泵,液体增压泵,涡轮增压器、燃气轮机、内燃机、发动机、蒸汽透平机、燃气透平机、水轮机、压力透平机、计量泵等领域,具有压缩比高、余隙容积小、结构简单、容易加工、振动小噪音低、稳定可靠等特点。
背景技术
容积泵主要利用腔体容积的变化来吸入和挤出流体,同时完成能量转换过程,比如液体透平或气体透平装置将流体的动能及势能转换成机械能。现有的滑阀泵体积大振动大多用于低转速工况、滚动活塞式压缩机密封困难、稳定性差、余隙容积较大,多用于小功率工况,且需要止回阀工作,曲柄连杆式活塞发动机体积大、侧压力大、稳定性差。
发明内容
本发明主要解决的技术问题是在降低现有容积泵制造难度,提高工作稳定性及使用寿命的前提下还能减小机械装置体积,适用于高转速工况工作,在获得极小的余隙容积的基础上实现高性能密封,流体入口和流体出口可不需要止回阀工作,可极大减小机械装置的振动及噪音。当本发明的偏心轴式平动转子泵及发动机具有多级递增或递减的工作容积结构时,设置前级的流体出口和次级流体入口连通可作为多级压缩机或多级膨胀做功机,作为往复式发动机使用时可消除活塞侧向压力,可较大范围调整缸径行程比同时提高发动机传动效率及热效率。
为实现上述目的,本发明提供以下的技术方案:
一种单偏心轴式平动转子泵及发动机,包括第一偏心轴,转子和缸体,所述的第一偏心轴的第一轴可转动的设置在缸体上,所述的第一偏心轴的第二轴可转动的设置在转子上,在转子和缸体上分别设置有转子凹槽和缸体凹槽,滑块同时在缸体凹槽和转子凹槽内滑动,且滑块与转子的外壁面或缸体的内壁面形成接合密封将位于滑块两侧的转子和缸体之间的空间隔开,同时与转子外壁面和缸体内壁面形成接合密封的区域使处于转子和缸体之间的内部空间分割成2个独立的空间,所述的2个独立的空间容积随转子转动发生周期性变化。
一种多偏心轴式平动转子泵及发动机,包括第一偏心轴,第二偏心轴,转子和缸体,所述的第一偏心轴和第二偏心轴的偏心距相同且第一偏心轴的第一轴和第二偏心轴的第一轴都可转动的设置在缸体上,所述的第一偏心轴的第二轴和第二偏心轴的第二轴可转动的设置在转子上,在转子或/和缸体上设置有转子凹槽或/和缸体凹槽,滑块可在转子凹槽或/和缸体凹槽内滑动,且滑块与转子的外壁面或缸体的内壁面形成接合密封将位于滑块两侧的转子和缸体之间的空间隔开,同时与转子外壁面和缸体内壁面形成接合密封的区域使处于转子和缸体之间的内部空间分割成2个独立的空间,所述的2个独立的空间容积随转子转动发生周期性变化。
作为对本发明的改进,所述的转子的外壁面具有一个或多个平面,所述的平面优选为矩形平面,或者所述的缸体的内壁面具有一个或多个平面,所述的平面优选为矩形平面。
作为对本发明的改进,所述的缸体内壁面外形特征具有与转子外壁面相似的外形特征。
作为对本发明的改进,在缸体和转子上还设置有与第一偏心轴偏心距相同的第三偏心轴,所述的第三偏心轴的第一轴可转动的设置在缸体上,第三偏心轴第二轴可转动的设置在转子上。
作为对本发明的改进,在所述的缸体的内壁面或转子的外壁面上圆周分别设置有一个或多个凹槽滑道及对应的弹性滑块,弹性滑块可在凹槽滑道内伸缩滑动,当缸体的内壁面或转子的外壁面接近或靠近且位于该弹性滑块位置时,该弹性滑块使该弹性滑块两侧的流体处于隔离状态。
一种具有活塞的偏心轴式平动转子泵及发动机,包括第一偏心轴,第二偏心轴,转子和缸体,所述的第一偏心轴和第二偏心轴的偏心距相同且第一偏心轴的第一轴和第二偏心轴的第一轴都可转动的设置在缸体上,所述的第一偏心轴的第二轴和第二偏心轴的第二轴可转动的设置在转子上,在缸体上设置有气缸,气缸内设置有活塞,活塞在气缸内滑动的同时活塞在转子的一侧的端面上进行往复运动,当转子转动时活塞在气缸内同步进行往复运动。
作为对本发明的改进,在所述转子的两侧都设置有气缸和活塞,设置在转子两侧的活塞彼此固定连接。
作为对本发明的改进,转子外壁面或缸体内壁面所有相互连接的面具有相切特征。
作为对本发明的改进,在所述的转子凹槽或缸体凹槽上或滑块上设置有耐磨减摩涂层或滚子(滚轮)构件减少滑块滑动时的阻力。
作为对本发明的改进,在一个或多个偏心轴上设置有平衡块以获得良好的动平衡效果,在滑块上设置有过孔以改善滑块两侧的压力差。
一种具有活塞的偏心轴式平动转子泵及发动机,包括第一偏心轴,转子和缸体,所述的第一偏心轴的第一轴可转动的设置在缸体上,所述的第一偏心轴的第二轴可转动的设置在转子上,在转子和缸体上分别设置有转子凹槽和缸体凹槽,滑块同时在缸体凹槽和转子凹槽内滑动,在转子凹槽或缸体凹槽上设置有气缸,在对应气缸的滑块上设置有活塞,活塞在气缸内滑动。
作为对本发明的改进,在所述的缸体和转子上还设置有与第一偏心轴偏心距相同的第二偏心轴;在所述的缸体和转子上还设置有与第一偏心轴偏心距相同的第三偏心轴。
作为对本发明的改进,在所述的缸体和转子圆周分布设置有多个转子凹槽及多个缸体凹槽,以及对应设置有多个滑块,在多个转子凹槽或多个缸体凹槽上对应设置有多个气缸,在每个滑块上设置有活塞与在对应的气缸内滑动。
作为对本发明的改进,当偏心轴式平动转子泵及发动机具有多级递增或递减的工作容积结构时,设置前级的流体出口和下一级流体入口连通可作为多级压缩机或多级膨胀做功机。
采用以上技术方案的有益效果是:通过在缸体和转子上设置偏心轴及缸体凹槽和转子凹槽,滑块同时在缸体凹槽及转子凹槽内滑动使转子构成平动公转运动或通过在转子和缸体上设置有第一偏心和第二偏心轴,各偏心轴的偏心距相同使转子构成平动公转运动。当滑块同时在缸体凹槽及转子凹槽内滑动时,滑块运动受缸体和转子的限制,使该滑块与缸体内壁或转子外壁形成密封时的弹性位移补偿量小,尤其是当滑块与缸体内壁上平面或转子外壁上平面形成密封时,滑块所需的密封弹性位移补偿量接近0,由于转子是平动公转运动,滑块与需要形成接合密封的转子外壁面/缸体内壁面的相对运动速度小,转子外壁面和缸体内壁面的相对运动速度也较小,从而可极大提高了滑块密封效果、可靠性、稳定性及寿命,也可使转子外壁面和缸体内壁面形成接合密封产生可靠的良好的密封隔离效果。随着转子转动一周,处于转子和缸体之间的空间内的流体完成一次排出和吸入的过程。在缸体内壁面或转子外壁面上设置有多个弹性密封件,当缸体的内壁面或转子的外壁面接近或靠近且位于弹性滑块位置时,弹性滑块使该弹性滑块两侧的流体处于隔离状态从而使转子外壁面和缸体内壁面在接近时处于较大间隙的情况下也能获得好的密封隔离效果。当转子外壁面或缸体内壁面所有相互连接的面之间都为相切特征时可获得接近0的余隙容积且无需设置止回阀,转子和缸体结构简单可靠、加工容易成本低。由于是周转运动急回特性小及振动小,通过增加平衡块可获得良好的动平衡效果,工作稳定使用寿命长。当本发明装置作为发动机(柱塞泵)使用时在缸体上设置有气缸和活塞,转子作为活塞的驱动构件工作,该结构可消除活塞侧向压力降低活塞环及活塞的制造加工难度,提高活塞及活塞环的使用寿命,可较大范围调整缸径行程比扩大发动机设计应用范围,提高发动机热效率及使用寿命,当设计成成对的气缸及活塞时可极大减小发动机体积。当在缸体和转子圆周分布设置有多个转子凹槽及缸体凹槽,以及对应设置有多个滑块,在多个转子凹槽或缸体凹槽上对应设置有多个气缸,在对应的滑块上设置有多个活塞在对应的气缸内滑动时,设置有与气缸容积变化对应的旋转的流体入口和流体出口时可无需阀控系统作为柱塞泵、压缩机、透平机、燃气轮机、发动机等应用。
附图说明
图1是本发明具有双偏心轴时内部平面结构示意图。
图2是图1所示实施例转子上设置有转子凹槽的平面结构示意图。
图3是本发明具有双偏心轴时内部平面结构示意图。
图4是本发明具有单偏心轴时内部平面结构示意图。
图5是图4所示实施例立体爆炸结构示意图。
图6是图4实施例增加弹性滑块的平面结构示意图。
图7是本发明转子作为活塞的驱动构件的立体结构示意图。
图8是本发明具有多排式多个活塞共同作用的立体结构示意图。
图9式本发明具有圆周分布的多个活塞共同作用的立体结构示意图。
图中标记是:
1-第一偏心轴,11-第一偏心轴的第一轴,12-第一偏心轴的第二轴, 2-第二偏心轴,21-第二偏心轴的第一轴,22-第二偏心轴的第二轴,3- 转子,32-转自凹槽,4-缸体,42-缸体凹槽,44-流体入口,45-流体出口,46-气缸,47-活塞,5-滑块。
具体实施方式
下面结合附图详细说明本发明的偏心式平动转子泵及发动机的优选实施方式。
请参见图1,图1揭示的是一种偏心轴式平动转子泵及发动机,包括第一偏心轴1,第二偏心轴2,转子3和缸体4,所述的第一偏心轴1 和第二偏心轴2的偏心距相同且第一偏心轴的第一轴11和第二偏心轴的第一轴21都可转动的设置在缸体4上,所述的第一偏心轴的第二轴12 和第二偏心轴的第二轴22可转动的设置在转子3上,在缸体4上设置有缸体凹槽42,缸体凹槽42内设置有滑块5,滑块5可在缸体凹槽42内滑动,滑块5和转子3上部的平面状的外壁面形成接合密封将滑块5两侧处于转子3和缸体4之间的工作空间隔开,同时与转子3外壁面和缸体4内壁面形成接合密封的区域使转子3和缸体4之间的内部空间分割成2个独立的工作空间,所述的2个独立的空间容积随转子3转动发生周期性变化从而构成一种容积泵。
本实施例中转子3朝顺时针平动公转,缸体4上设置有流体入口44 和流体出口45,缸体4内壁面及转子3外壁面为直槽口形状,本实施例中主动偏心轴为第一偏心轴1,从动偏心轴为第二偏心轴2,第一偏心轴的第一轴11为顺时针方向旋转并驱动转子3及第二偏心轴2转动,随着第一偏心轴1转动,和流体出口45贯通的工作空间体积不断减小流体排出,和流体入口44贯通的工作空间体积不断增加流体流入,上述2个空间容积变化交替进行形成容积泵的周期性变化。本实施例中,缸体4内壁面外形特征具有与转子3外壁面在相似的外形特征都是直槽口形状。
请参见图2,本实施例和图1实施例基本一样,所不同的是在转子3 上还设置有转子凹槽32,滑块5不仅在缸体凹槽42内做往复直线运动同时在转子凹槽32内做往复直线运动。
请参见图3,本实施例和图1实施例基本一样,所不同的是在缸体4 和转子3上设置有3个偏心距一样的偏心轴共同作用,转子3的外壁面的形状特征更接近圆形,外壁面各个相互连接的面之间相切,且转子3 外壁面存在一个平面平台,缸体4的内壁面具有和转子3外壁面相似的外形特征。具有弹性位移补偿的滑块5与转子3的平面平台接触并随着转子3的运动在该平面上往复滑动。
请参见图4,图4揭示的是一种只具有一个偏心轴的偏心轴式平动转子泵及发动机,包括第一偏心轴1,转子3和缸体4,所述的第一偏心轴的第一轴11可转动的设置在缸体4上,所述的第一偏心轴的第二轴 12可转动的设置在转子3上,在转子3和缸体4上分别设置有转子凹槽 32和缸体凹槽42,滑块5同时在缸体凹槽42和转子凹槽32内做往复滑动,且滑块5与转子3的外壁面或缸体4的内壁面形成接合密封将位于滑块5两侧的转子3和缸体4之间的空间隔开,同时与转子3的外壁面和缸体4的内壁面形成接合密封的区域使处于转子3和缸体4之间的内部空间分割成2个独立的空间,所述的2个独立的空间容积随转子3转动发生周期性变化构成一种容积泵。本实施例中转子3的外壁面外形特征为圆形,缸体4的内壁面外形特征为圆形,在其顶部有一个平面凹形平台,滑块5和该凹形平台贴合并在该凹形平台上做往复运动同时将该滑块5两侧的转子3和缸体4之间的空间隔开。
请参见图5,图5是图4实施例的立体爆炸结构图,滑块5具有两个相互垂直的滑块构件以同时在转子凹槽32和缸体凹槽42内滑动。
优选的,所述的转子3的外壁面具有一个或多个平面,所述的平面优选为矩形平面,或者所述的缸体的内壁面具有一个或多个平面,所述的平面优选为矩形平面。
优选的,所述的缸体4内壁面外形特征具有与转子3外壁面相似的外形特征。
优选的,在缸体4和转子3上还设置有与第一偏心轴1偏心距相同的第三偏心轴,所述的第三偏心轴的第一轴可转动的设置在缸体上,第三偏心轴的第二轴可转动的设置在转子上。
本发明中形成接合密封指两个相对运动件之间靠近、贴近、接触、压合等方式形成的密封。
请参见图6,图6实施例是在所述的缸体4的内壁面或转子3的外壁面上圆周分布设置有一个或多个凹槽滑道及弹性滑块(也可以弹簧,流体驱动弹性件等),弹性滑块在凹槽滑道内伸缩滑动,当缸体4的内壁面或转子3的外壁面接近或靠近且位于该弹性滑块位置时,该弹性滑块两侧的流体被隔开。
优选的,转子3外壁面或缸体4内壁面相互连接的面具有相切特征。
优选的,在所述的转子凹槽32或缸体凹槽42上或滑块5上设置有耐磨减摩涂层或滚子(滚轮)构件减少滑块滑动时的阻力。
优选的,在一个或多个偏心轴上设置有平衡块以获得良好的动平衡效果,在滑块上设置有过孔以改善滑块两侧的压力差。
优选的,在所述的滑块5的两侧的缸体上设置有流体入口44及流体出口45,当偏心轴式平动转子泵及发动机具有多级递增或递减的工作容积结构时,设置前级的流体出口45和下一级流体入口44连通可作为多级压缩机或多级膨胀做功机。
请参见图7,图7揭示的是本发明转子3作为活塞47驱动构件的立体结构示意图,本实施例可应用在柱塞泵、发动机、压缩机等领域。包括第一偏心轴1,第二偏心轴2,转子3和缸体4,所述的第一偏心轴1 和第二偏心轴2的偏心距相同且第一偏心轴的第一轴11和第二偏心轴的第一轴21都可转动的设置在缸体4上,所述的第一偏心轴的第二轴12 和第二偏心轴的第二轴22可转动的设置在转子3上,在缸体4上设置有气缸46,气缸46内设置有活塞47,活塞47在气缸46内滑动的同时活塞47在转子3的一侧的端面上做往复运动,当转子3转动时活塞47在气缸46内同步进行往复运动。本实施例中,在所述转子3的两侧都设置有气缸46和活塞47,设置在转子3两侧的活塞47彼此固定连接。
优选的,在缸体4和转子3上还设置有与第一偏心轴1偏心距相同的第三偏心轴,所述的第三偏心轴的第一轴可转动的设置在缸体4上,第三偏心轴的第二轴可转动的设置在转子3上。
优选的,本发明中凹槽可视为具有凹槽状的轨道/滑道,滑块在凹槽中滑动可视为直线导轨动作。
请参见图8,图8实施例中设置有2个转子3,两个偏心轴,且同一个偏心轴具有多个偏心距同时和多个活塞46共同作用。
请参见图9,图9实施例包括第一偏心轴1,转子3和缸体4,所述的第一偏心轴的第一轴可转动的设置在缸体上,所述的第一偏心轴的第二轴可转动的设置在转子3上,在转子3和缸体4上分别设置有转子凹槽32和缸体凹槽42,滑块5同时在缸体凹槽42和转子凹槽32内滑动,本实施例中在6个转子凹槽32上分别设置有6个气缸46,在对应气缸 46的6个滑块5上分别设置有6个活塞47,每个活塞47在对应的气缸 46内滑动。
本实施例中所述的第一偏心轴1的数量可以是2个或3个或多个,所述的的多个第一偏心轴1都设置在缸体4和转子3上共同作用,转子 3处于平动公转运动。
本实施例中位于转子3内的一对平行的转子凹槽32对应的一对滑块5可固定连接一起。
本实施例中,气缸46内的流体容积和转子3的位置对应,在转子3 上设置有流体入口44和流体出口45,当流体入口44和流体出口45旋转至不同位置的气缸46所在位置时,当流体入口44和流体出口45与该气缸46直接贯通,此时本发明偏心轴式平动转子泵及发动机不需要阀控系统可应用在容积泵、柱塞泵、压缩机、透平机、发动机等领域,当其中一个本实施例的偏心轴式平动转子泵及发动机作为压气机,另一个本实施例的偏心轴式平动转子泵及发动机作为透平机时构成燃气轮机。
本发明中当缸体由固定变为转动而偏心轴由转动改为固定时可认为偏心轴设置在外部而缸体设置在内部同样适用本发明保护范围。
Claims (10)
1.一种单偏心轴式平动转子泵及发动机,其特征在于,包括第一偏心轴(1),转子(3)和缸体(4),所述的第一偏心轴的第一轴(11)可转动的设置在缸体(4)上,所述的第一偏心轴的第二轴(12)可转动的设置在转子(3)上,在转子(3)和缸体(4)上分别设置有转子凹槽(32)和缸体凹槽(42),滑块(5)同时在缸体凹槽(42)和转子凹槽(32)内滑动,且滑块(5)与转子(3)的外壁面或缸体(4)的内壁面形成接合密封将位于滑块(5)两侧的转子(3)和缸体(4)之间的空间隔开,同时与转子(3)的外壁面和缸体(4)的内壁面形成接合密封的区域使处于转子(3)和缸体(4)之间的内部空间分割成2个独立的空间,所述的2个独立的空间容积随转子(3)转动发生周期性变化。
2.根据权利要求1所述的单偏心轴式平动转子泵及发动机,其特征在于:所述的转子(3)的外壁面具有一个或多个平面或所述的缸体(4)的内壁面具有一个或多个平面。
3.根据权利要求1所述的单偏心轴式平动转子泵及发动机,其特征在于:在所述的缸体(4)的内壁面或转子(3)的外壁面上圆周分布设置有一个或多个弹性密封件,当缸体(4)的内壁面或转子(3)的外壁面接近或靠近且位于该弹性密封件时,该弹性密封件两侧的流体被隔开。
4.一种多偏心轴式平动转子泵及发动机,其特征在于,包括第一偏心轴(1),第二偏心轴(2),转子(3)和缸体(4),所述的第一偏心轴(1)和第二偏心轴(2)的偏心距相同且第一偏心轴的第一轴(11)和第二偏心轴的第一轴(21)都可转动的设置在缸体(4)上,所述的第一偏心轴的第二轴(12)和第二偏心轴的第二轴(22)可转动的设置在转子(3)上,在转子(3)或/和缸体(4)上设置有转子凹槽(32)或/和缸体凹槽(42),滑块(5)可在转子凹槽(32)或/和缸体凹槽(42)内滑动,且滑块(5)与转子(3)的外壁面或缸体(4)的内壁面形成接合密封并将位于滑块(5)两侧的转子(3)和缸体(4)之间的空间隔开,同时与转子(3)外壁面和缸体(4)内壁面形成接合密封的区域使处于转子(3)和缸体(4)之间的内部空间分割成2个独立的空间,所述的2个独立的空间容积随转子(3)运动时的转子转动发生周期性变化。
5.根据权利要求4所述的多偏心轴式平动转子泵及发动机,其特征在于:所述的转子(3)的外壁面具有一个或多个平面或所述的缸体(4)的内壁面具有一个或多个平面。
6.根据权利要求4所述的多偏心轴式平动转子泵及发动机,其特征在于:在所述的缸体(4)和转子(3)上还设置有与第一偏心轴(1)偏心距相同的第三偏心轴,所述的第三偏心轴的第一轴可转动的设置在缸体(4)上,第三偏心轴的第二轴可转动的设置在转子(3)上。
7.根据权利要求4所述的多偏心轴式平动转子泵及发动机,其特征在于:在所述的缸体(4)的内壁面或转子(3)的外壁面上圆周分布设置有一个或多个弹性密封件,当缸体(4)的内壁面或转子(3)的外壁面接近或靠近且位于该弹性密封件时,该弹性密封件两侧的流体被隔开。
8.一种具有活塞的偏心轴式平动转子泵及发动机,其特征在于,包括第一偏心轴(1),转子(3)和缸体(4),所述的第一偏心轴的第一轴(11)可转动的设置在缸体(4)上,所述的第一偏心轴的第二轴(12)可转动的设置在转子(3)上,在转子(3)和缸体(4)上分别设置有转子凹槽(32)和缸体凹槽(42),滑块(5)同时在缸体凹槽(42)和转子凹槽(32)内滑动,在转子凹槽(32)或缸体凹槽(42)上设置有气缸(46),在对应气缸(46)的滑块(5)上设置有活塞(47),活塞(47)在气缸(46)内滑动。
9.根据权利要求8所述的具有活塞的偏心轴式平动转子泵及发动机,其特征在于:所述的第一偏心轴(1)的数量大于2,所述的多个第一偏心轴(1)共同设置在缸体(4)和转子(3)上一同作用。
10.根据权利要求8或权利要求9所述的具有活塞的偏心轴式平动转子泵及发动机,其特征在于:在所述的缸体(4)和转子(3)圆周分布设置有多个转子凹槽(32)及多个缸体凹槽(42),以及对应设置有多个滑块(5),每个滑块(5)在对应的转子凹槽(32)及缸体凹槽(42)内滑动,在多个转子凹槽(32)或缸体凹槽(42)上设置有多个气缸(46),滑块(5)上设置有多个活塞(47)在对应的气缸(46)内滑动。
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