CN1313741C - 一种单缸内燃机曲轴 - Google Patents

一种单缸内燃机曲轴 Download PDF

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Publication number
CN1313741C
CN1313741C CNB2004100802136A CN200410080213A CN1313741C CN 1313741 C CN1313741 C CN 1313741C CN B2004100802136 A CNB2004100802136 A CN B2004100802136A CN 200410080213 A CN200410080213 A CN 200410080213A CN 1313741 C CN1313741 C CN 1313741C
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axle
clutch end
combustion engine
internal combustion
bent axle
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CN1587729A (zh
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王钦泉
谈乃成
程铁仕
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Changfa Power Machinery Co., Ltd., Changzhou City
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JIANGSU CHANGFA GROUP
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Abstract

一种单缸内燃机曲轴,包括一动力输出端,该动力输出端成形有与所述曲轴的旋转中心线共轴的一螺纹和一定位基面,用以连接一接轴,所述螺纹的旋转方向与所述曲轴的转动方向相反,所述接轴与所述曲轴的相对端,成形有与所述螺纹旋合的对应螺纹和与所述定位基面配合的装配基面。只需简单地更换接轴,便能与各种工作机械的驱动轴连接,实现一机多用。

Description

一种单缸内燃机曲轴
技术领域:
本发明涉及一种单缸内燃机曲轴。
背景技术:
单缸内燃机,例如单缸柴油机曲轴,通常采用整体结构,其动力输出端,常与被驱动的发电机、水泵等工作机械的驱动轴连接,由于连接方式不同,曲轴动力输出端的结构和尺寸,必须相应变化,内燃机的制造厂家,不得不制造具有各种动力输出端结构和尺寸的曲轴,提供整台内燃机,才能满足用户要求,使产品种类变得繁杂,难以预计曲轴的合理库存,增加产品的制造周期和生产成本。用户也希望,用同一内燃机,驱动多种工作机械。
发明内容:
本发明的目的,旨在提供一种改进的单缸内燃机曲轴,其动力输出端具有一可更换的接轴,以便与各种不同的工作机械的驱动轴连接,满足多种用途的需求。
按照本发明提供的一种单缸内燃机曲轴,包括一动力输出端,该动力输出端成形有与所述曲轴的旋转中心线共轴的一中心孔,该中心孔的孔壁上成形有一圆锥定位孔,所述动力输出端的外周面上成形有一细牙外螺纹,用以连接一接轴;所述外螺纹的旋转方向与所述曲轴的转动方向相反;所述接轴与所述曲轴的相对端,成形有与所述圆锥定位孔配合的外锥面和一凸肩;一与所述外螺纹旋合的压紧螺帽,压靠在所述凸肩上,将所述接轴固定连接在所述动力输出端。
按照本发明提供的上述单缸内燃机曲轴,只需简单地更换接轴,便能与各种工作机械的驱动轴连接,使产品的种类得到简化,实现一机多用;由于曲轴的动力输出端与接轴的连接螺纹的旋转方向与内燃机曲轴的转动方向相反,保证连接不会出现松动;由于采用与曲轴的旋转中心线共轴的定位基面作为接轴的安装基面,确保接轴旋转平稳,不会出现径向跳动或者轴向窜动。
本发明的进一步的特征和优点,在阅读了以下结合附图给出的实施例说明之后,将会得到更充分的理解。
附图说明:
图1示意示出按照本发明的一种单缸内燃机曲轴的实施例。
具体实施方式
参见图1,其中示意示出按照本发明的一种单缸内燃机曲轴的实施例,该曲轴可转动地支撑在齿轮室中,由于本发明仅对该曲轴的动力输出端3的结构进行改进,图中仅示出曲轴的动力输出端3和一侧齿轮室盖的结构,以及安装在齿轮室盖1中的一个油封2。如图1所示,该曲轴的动力输出端3成形有与所述曲轴的旋转中心线X-X共轴的一中心孔,该中心孔的孔壁上成形有一圆锥定位孔33,所述动力输出端3的外周面上成形有一细牙外螺纹32,用以连接一接轴4,所述细牙外螺纹32的旋转方向与所述曲轴的转动方向相反。所述接轴4用于与被驱动的工作机械,例如发电机或者水泵的驱动轴连接,具体连接方式,视要求而定,图中给出的是一种圆柱轴伸加键槽的连接形式,还可以采用圆锥轴伸加键槽,或者花键连接,或者法兰连接等形式。所述接轴4与所述曲轴的相对端,成形有与所述圆锥定位孔33配合的外锥面43和一凸肩41。一与所述细牙外螺纹32旋合的压紧螺帽6,压靠在所述凸肩41上,将所述接轴3固定连接在所述动力输出端3。
从上述实施例可以看出,本发明的单缸内燃机曲轴,尽管增加了一个接轴4,但由于它是插接动力输出端3的中心孔内的,与现有整体结构的曲轴比较,轴向长度基本保持不变。
需要指出的是,上述实施例仅为说明和便于理解之用,并非是对本发明的限制,本发明的专利保护范围,应以权利要求的内容为准。

Claims (1)

1.一种单缸内燃机曲轴,包括一动力输出端(3),其特征在于:所述动力输出端(3)成形有与所述曲轴的旋转中心线(X-X)共轴的一中心孔,该中心孔的孔壁上成形有一圆锥定位孔(33),所述动力输出端(3)的外周面上成形有一细牙外螺纹(32),用以连接一接轴(4);所述外螺纹(32)的旋转方向与所述曲轴的转动方向相反;所述接轴(4)与所述曲轴的相对端,成形有与所述圆锥定位孔(33)配合的外锥面(43)和一凸肩(41);一与所述外螺纹(32)旋合的压紧螺帽(6),压靠在所述凸肩(41)上,将所述接轴(4)固定连接在所述动力输出端(3)。
CNB2004100802136A 2004-09-28 2004-09-28 一种单缸内燃机曲轴 Expired - Fee Related CN1313741C (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581599A (en) * 1969-07-14 1971-06-01 Skil Corp Canada Ltd Thread-on connecting rod and crank assemblies
US4624156A (en) * 1984-06-20 1986-11-25 Kioritz Corporation Crankshaft assembly
EP0482929A1 (en) * 1990-10-26 1992-04-29 Briggs & Stratton Corporation Power takeoff adapter for drive shaft
EP0801237A1 (de) * 1996-04-13 1997-10-15 Motorenfabrik Hatz GmbH & Co. KG Kurbelwelle, insbesondere für Einzylinder-Verbrennungs-motoren
CN2591316Y (zh) * 2002-12-06 2003-12-10 重庆力帆实业(集团)有限公司 发动机曲轴
CN2744879Y (zh) * 2004-09-28 2005-12-07 江苏常发实业集团有限公司 一种单缸内燃机曲轴

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3581599A (en) * 1969-07-14 1971-06-01 Skil Corp Canada Ltd Thread-on connecting rod and crank assemblies
US4624156A (en) * 1984-06-20 1986-11-25 Kioritz Corporation Crankshaft assembly
EP0482929A1 (en) * 1990-10-26 1992-04-29 Briggs & Stratton Corporation Power takeoff adapter for drive shaft
EP0801237A1 (de) * 1996-04-13 1997-10-15 Motorenfabrik Hatz GmbH & Co. KG Kurbelwelle, insbesondere für Einzylinder-Verbrennungs-motoren
CN2591316Y (zh) * 2002-12-06 2003-12-10 重庆力帆实业(集团)有限公司 发动机曲轴
CN2744879Y (zh) * 2004-09-28 2005-12-07 江苏常发实业集团有限公司 一种单缸内燃机曲轴

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Assignee: Changfa Power Machinery Co., Ltd., Changzhou City

Assignor: Changfa Industrial Group Co., Ltd., Jiangsu Prov.

Contract fulfillment period: 2007.5.20 to 2017.5.20 contract change

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Denomination of invention: Single cylinder internal combustion engine crankshaft

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