CN103899375B - 一种具有中央螺栓的凸轮轴调节器 - Google Patents

一种具有中央螺栓的凸轮轴调节器 Download PDF

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Publication number
CN103899375B
CN103899375B CN201210572711.7A CN201210572711A CN103899375B CN 103899375 B CN103899375 B CN 103899375B CN 201210572711 A CN201210572711 A CN 201210572711A CN 103899375 B CN103899375 B CN 103899375B
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central bolt
stator
camshaft adjuster
rotor
protecgulum
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CN103899375A (zh
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何艳桦
欧成
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Schaeffler Technologies AG and Co KG
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Schaeffler Technologies AG and Co KG
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Priority to CN201210572711.7A priority Critical patent/CN103899375B/zh
Priority to US14/655,432 priority patent/US9938863B2/en
Priority to PCT/CN2013/089950 priority patent/WO2014101709A1/zh
Priority to DE112013006206.2T priority patent/DE112013006206T5/de
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34453—Locking means between driving and driven members
    • F01L2001/34456—Locking in only one position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34483—Phaser return springs

Abstract

一种具有中央螺栓的凸轮轴调节器，其包括定子和抗扭地与凸轮轴连接的转子，所述转子收容于所述定子内部并且在转子和定子之间形成若干工作腔。一个前盖和一个后盖分别位于所述定子的前后两侧并且通过若干螺栓与所述定子结合在一起。一个压缩弹簧的第一端卡扣于所述前盖的外部而该压缩弹簧的第二端固定于所述转子上。一个中央螺栓自所述前盖上设置的开口安装入所述凸轮轴调节器的内部，所述中央螺栓设有一个能够推动所述压缩弹簧到准确位置的导引部，这样就不需要在凸轮轴调节器内部设置支撑压缩弹簧的支撑装置，因而有利于优化凸轮轴调节器的结构并且降低生产成本。

Description

一种具有中央螺栓的凸轮轴调节器
技术领域
本发明涉及内燃机技术领域，尤其涉及一种应用于内燃机技术领域的具有中央螺栓的凸轮轴调节器。
背景技术
在具有机械式阀控制机构的内燃机中，换气阀被由曲轴驱动的凸轮轴的凸轮所控制，其中，针对曲轴与凸轮轴之间的确定的相位，通过凸轮的布置和形状可以确定阀的配气相位。根据内燃机的当前运行工况，可以通过改变曲轴与凸轮轴之间的相位来对阀的配气相位产生影响，由此可以实现有利的效果，比如减少燃油消耗和有害物质的产生。这种自由选择地调整曲轴与凸轮轴之间的相位的装置即凸轮轴调节器。
中国专利申请201010212448.1号揭示了一种凸轮轴调节器，其包括与曲轴传动相连的外转子或者说是定子、同心地设置在定子的中空腔中的内转子或者说是转子、前盖、后盖、弹簧及若干固定螺栓。前盖、后盖分别位于定子的两侧，所述固定螺栓穿过定子从而将前盖和后盖结合在一起。弹簧的一端固定在前盖上，另一端则固定在转子上，这样可以让转子和定子之间抗扭地连接。由于弹簧为压缩弹簧并且在轴向上具有一定的长度，若没有支撑，弹簧可能会在转子内部倾斜，这将会影响转子向凸轮轴上固定时中央螺栓的安装。因此，在本专利揭示的凸轮轴调节器中，前盖向内突伸形成一个环状的支撑装置以支撑弹簧的前端，这样可以有效防止弹簧的倾斜。
美国专利公告6,450,137号同样揭示了一种类似的凸轮轴调节器，它也是通过在前盖设置支撑装置来防止弹簧的倾斜。当然，也可以设置其他单独形成的支撑装置来实现弹簧的支撑。但是，由于在前盖上设置支撑装置会造成前盖尺寸的增加并且增加额外的制造成本，此外，单独形成的支撑装置也会增加凸轮轴调节器组装的复杂性并且增加制造成本。
因此，需要提供一种改进的凸轮轴调节器以解决上述问题。
发明内容
本发明解决的问题是提供一种具有中央螺栓的结构简单的凸轮轴调节器。
为解决上述问题，本发明采用如下技术方案：一种具有中央螺栓的凸轮轴调节器，其包括定子和抗扭地与凸轮轴连接的转子，所述转子收容于所述定子内部并且在转子和定子之间形成若干工作腔，一个前盖和一个后盖分别位于所述定子的前后两侧并且通过若干螺栓与所述定子结合在一起，一个压缩弹簧的第一端卡扣于所述前盖的外部而该压缩弹簧的第二端固定于所述转子上，一个中央螺栓自所述前盖上设置的开口安装入所述凸轮轴调节器的内部，所述中央螺栓设有一个能够推动所述压缩弹簧到准确位置的导引部。
与现有技术相比，本发明具有以下优点：中央螺栓的导引部可以推动所述压缩弹簧到准确位置，这样就不需要在凸轮轴调节器内部设置支撑压缩弹簧的支撑装置，因而有利于优化凸轮轴调节器的结构并且降低生产成本。
附图说明
图1是本发明的凸轮轴调节器的立体图；
图2是图1所示的凸轮轴调节器的前视图；
图3是图2所示的凸轮轴调节器沿A-A线的剖视图，其中中央螺栓部分安装入凸轮轴调节器内；
图4是图2所示的凸轮轴调节器沿A-A线的剖视图，其中中央螺栓完全安装入凸轮轴调节器内。
具体实施方式
由图1至图3所示，本发明的凸轮轴调节器100具有定子3和抗扭地与凸轮轴7连接的转子2，其中定子3由未显示出的内燃机的曲轴来驱动。在定子3和转子2之间布置有多个工作腔，工作腔通过定子3的径向向内突出的凸起部形成，这些凸起部支撑在转子2的径向内部直径上。工作腔通过设置于转子2的翼板（可以是单独形成的也可以是一体形成的）分别被划分成两个工作腔，这些工作腔内被施加压力介质，从而可以改变转子2相对于定子3的相对转动位置，同时也可以改变凸轮轴相对于曲轴的相对转动位置。
定子3的前后两侧分别设置有前盖1和后盖4，通过若干螺栓8可以将前盖1、定子3和后盖4结合在一起。转子2收容于定子3的内部，为了保持定子3和转子2之间的抗扭地连接，转子2的一侧安装有一个螺旋状压缩弹簧5。压缩弹簧5沿转子2的轴向方向安装，并且在轴向上具有一定的长度。压缩弹簧5的第一端勾扣于前盖1上，而相对的第二端则勾扣于转子2上，由于前盖1与定子3结合在一起，压缩弹簧5可以保持转子2与定子3之间的抗扭连接。需要指出的是，压缩弹簧5的第一端勾扣于前盖1的外部，因此前盖1并不需要设置固定机构来固定压缩弹簧5的第一端。这样，前盖1就不会在轴向上增加整个凸轮轴调节器100的尺寸。
凸轮轴7的一端抵靠于转子2，并且凸轮轴7内部设有用以收容中央螺栓6的轴孔71，其中，中央螺栓6可以将凸轮轴调节器100固定至凸轮轴7上。中央螺栓6包括细长的主体部61、头部63及连接主体部61和头部63的导引部62。导引部62的表面具有一定的坡度，并且导引部62靠近头部63一侧的尺寸大于靠近主体部61一侧的尺寸。主体部61的外表面上设有若干外螺纹（未图示），这些外螺纹与凸轮轴7内部的内螺纹（未图示）相互咬合从而将中央螺栓6固定在凸轮轴7内。
如图3和图4所示，中央螺栓6自前盖1中央设置的开口11向内插入凸轮轴调节器100内。主体部61首先进入凸轮轴7的轴孔71内，随着主体部61的进一步深入，导引部62将移动至压缩弹簧5的内部，假如此时压缩弹簧5有一定的倾斜，导引部62的表面将推动压缩弹簧5的内部直到头部63支撑于压缩弹簧5的内部。由于导引部62的存在，即使压缩弹簧5有一定的倾斜，中央螺栓6也可以正常安装并且导引部62能够将压缩弹簧5导引恢复到准确位置。这样，就不需要在凸轮轴调节器100内部设置支撑压缩弹簧5的支撑装置，因而有利于优化凸轮轴调节器100的结构并且降低生产成本。
虽然本发明仅就某些示范性实施方式进行描述，这些描述应该仅作为示例而不构成限制。在所附权利要求书记载的范围内，在不脱离本发明精神和范围情况下，各种变化均是可能的。

Claims (4)

1.一种具有中央螺栓的凸轮轴调节器，其包括定子和抗扭地与凸轮轴连接的转子，所述转子收容于所述定子内部并且在转子和定子之间形成若干工作腔，一个前盖和一个后盖分别位于所述定子的前后两侧并且通过若干螺栓与所述定子结合在一起，一个压缩弹簧的第一端卡扣于所述前盖的外部而该压缩弹簧的第二端固定于所述转子上，一个中央螺栓自所述前盖上设置的开口安装入所述凸轮轴调节器的内部，其特征在于：所述中央螺栓设有一个能够推动所述压缩弹簧到准确位置的导引部。
2.如权利要求1所述的具有中央螺栓的凸轮轴调节器，其特征在于：所述中央螺栓包括头部和细长的主体部，所述导引部连接所述头部和主体部，所述中央螺栓完全安装入凸轮轴调节器内时，所述头部支撑所述压缩弹簧。
3.如权利要求2所述的具有中央螺栓的凸轮轴调节器，其特征在于：所述导引部的表面具有一定坡度，并且该导引部靠近头部一侧的尺寸大于靠近主体部一侧的尺寸。
4.如权利要求1至3中任一项所述的具有中央螺栓的凸轮轴调节器，其特征在于：与转子连接的凸轮轴设有轴孔，该轴孔与所述前盖的开口对应以让所述中央螺栓安装。
CN201210572711.7A 2012-12-25 2012-12-25 一种具有中央螺栓的凸轮轴调节器 Expired - Fee Related CN103899375B (zh)

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CN201210572711.7A CN103899375B (zh) 2012-12-25 2012-12-25 一种具有中央螺栓的凸轮轴调节器
US14/655,432 US9938863B2 (en) 2012-12-25 2013-12-19 Camshaft phaser having central bolt
PCT/CN2013/089950 WO2014101709A1 (zh) 2012-12-25 2013-12-19 一种具有中央螺栓的凸轮轴调节器
DE112013006206.2T DE112013006206T5 (de) 2012-12-25 2013-12-19 Nockenwellenversteller mit Mittelbolzen

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DE102017111110A1 (de) 2017-05-22 2018-11-22 Schaeffler Technologies AG & Co. KG Nockenwellenversteller mit einem Kettenrad und einem damit kraft- und/oder formschlüssig verbundenen Stator
CN109124200B (zh) * 2018-11-08 2024-02-09 广西玉柴机器股份有限公司 一种机体固定及展示装置
CN114151157B (zh) * 2021-11-26 2024-04-26 中国北方发动机研究所(天津) 一种凸轮轴辅助支撑结构

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DE10064222B4 (de) 1999-12-24 2006-02-09 Aisin Seiki K.K., Kariya Verstellbares Ventilsteuersystem
JP4538937B2 (ja) * 1999-12-24 2010-09-08 アイシン精機株式会社 弁開閉時期制御装置
JP4161370B2 (ja) * 2003-12-15 2008-10-08 株式会社デンソー バルブタイミング調整装置
JP2005325758A (ja) * 2004-05-13 2005-11-24 Denso Corp バルブタイミング調整装置
CN101769183A (zh) * 2010-01-18 2010-07-07 上海交通大学 可变气门正时相位控制器
CN101900005B (zh) 2010-06-29 2011-10-26 绵阳富临精工机械股份有限公司 发动机可变气门正时系统凸轮轴智能调相器
JP5505257B2 (ja) 2010-10-27 2014-05-28 アイシン精機株式会社 弁開閉時期制御装置
JP5357137B2 (ja) 2010-12-24 2013-12-04 日立オートモティブシステムズ株式会社 内燃機関のバルブタイミング制御装置

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US9938863B2 (en) 2018-04-10
WO2014101709A1 (zh) 2014-07-03
DE112013006206T5 (de) 2015-09-10
CN103899375A (zh) 2014-07-02
US20160201525A1 (en) 2016-07-14

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