CN2821168Y - 单缸四冲程汽油机的链条传动双凸轮推杆配气结构 - Google Patents

单缸四冲程汽油机的链条传动双凸轮推杆配气结构 Download PDF

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CN2821168Y
CN2821168Y CN 200520034803 CN200520034803U CN2821168Y CN 2821168 Y CN2821168 Y CN 2821168Y CN 200520034803 CN200520034803 CN 200520034803 CN 200520034803 U CN200520034803 U CN 200520034803U CN 2821168 Y CN2821168 Y CN 2821168Y
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cam
timing
assembled
lower shake
camshaft
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Expired - Fee Related
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CN 200520034803
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熊自安
杨言富
吴子楷
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Chongqing Yuantian Power Bicycle Co., Ltd.
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熊自安
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Abstract

本实用新型涉及汽油机。针对现有四冲程汽油机采用齿轮传动单凸轮推杆配气机械结构,存在着齿轮传动产生机械异响,同时在同一凸轮上不好调校下摇臂等不足之处,而提出一种结构简单,链条传动、双凸轮,推杆配气结构。所采用技术方案是,缸体5内装配有凸轮轴16,凸轮轴16轴上装配有正时从动链轮7、进气凸轮6和排气凸轮15,进气凸轮6和排气凸轮15分别贴着两下摇臂8的下臂端,曲轴箱4内装配的曲柄轴1轴上装配有正时主动链轮2,正时主动链轮2与正时从动链轮7之间装配有链条3。

Description

单缸四冲程汽油机的链条传动双凸轮推杆配气结构
一、技术领域
本实用新型涉及汽油机,尤其是一种单缸四冲程汽油机的链条传动双凸轮推杆配气结构。
二、背景技术
现有四冲程汽油机,采用齿轮传动单凸轮推杆配气机械结构,由正时主动齿轮、正时从动齿轮、单凸轮、下摇臂、推杆、上摇臂、进气门和排气门组成。其工作原理是,装于曲柄轴上的正时主动齿轮带动凸轮轴上装的正时从动齿轮,从而使凸轮轴上的凸轮转动,同一凸轮带动两个下摇臂摆动,而气门推杆穿过缸体,其上,下两端分别与上摇臂、下摇臂配合,下摇臂装在缸体上,上摇臂装在缸头上,下摇臂随着凸轮转动而摆动,通过推杆使上摇臂摆动,而两个上摇臂的另一端分别控制进气门及排气门的开、闭,完成进、排气动作。上述机械结构,存在着齿轮传动,产生机械异响,同时在同一凸轮上不好调校下摇臂等不足之处。
三、发明内容
本实用新型的目的是提供一种结构简单,链条传动、双凸轮,推杆配气结构。
本实用新型的目的所采用技术方案是,包括有下摇臂销穿过两下摇臂上部一侧的孔固定在缸头内,下摇臂的上臂端顶着推杆的下端,两推杆的上端分别顶着两上摇臂的一端,上摇臂的另一端分别顶着进气门和排气门,其缸体内装配有凸轮轴,凸轮轴轴上装配有正时从动链轮、进气凸轮和排气凸轮,进气凸轮和排气凸轮分别贴着两下摇臂的下臂端,曲轴箱内装配的曲柄轴轴上装配有正时主动链轮,正时主动链轮与正时从动链轮之间装配有链条。
本实用新型的工作原理,在曲轴箱内装配的曲柄轴旋转,带动曲柄轴轴上装配的正时主动链轮一起旋转,通过链条带动正时从动链轮旋转,随着正时从动链轮的旋转,进气凸轮和排气凸轮也随之旋转,而进气凸轮、排气凸轮的旋转使下摇臂绕着下摇臂销固定点摆动,通过推杆使两上摇臂摆动,分别推动气门开、闭,完成配气工作。
本实用新型具有结构简单紧凑,装配调校方便,旋转平稳,噪声小等特点。
四、附图说明
下面结合附图进一步说明本实用新型。
附图是本实用新型剖视结构示意图。
图中:1-曲柄轴  2-正时主动链轮  3-链条  4-曲轴箱  5-缸体6-进气凸轮  7-正时从动链轮  8-下摇臂  9-缸头  10-推杆  11-进气门  12-上摇臂  13-下摇臂销  14-排气门  15-排气凸轮  16-凸轮轴
五、具体实施方式
如附图所示,下摇臂销13穿过两下摇臂8上部一侧的孔固定在缸头9内,下摇臂8的上臂端顶着推杆10的下端,两推杆10的上端分别顶着两上摇臂12的一端,上摇臂12的另一端分别顶着进气门11和排气门14,其缸体5内装配有凸轮轴16,凸轮轴16轴上装配有正时从动链轮7、进气凸轮6和排气凸轮15,进气凸轮6和排气凸轮15分别贴着两下摇臂8的下臂端,曲轴箱4内装配的曲柄轴1轴上装配有正时主动链轮2,正时主动链轮2与正时从动链轮7之间装配有链条3。

Claims (1)

1、一种单缸四冲程汽油机的链条传动双凸轮推杆配气结构,包括有下摇臂销(13)穿过两下摇臂(8)上部一侧的孔固定在缸头(9)内,下摇臂(8)的上臂端顶着推杆(10)的下端,两推杆(10)的上端分别顶着两上摇臂(12)的一端,上摇臂(12)的另一端分别顶着进气门(11)和排气门(14),其特征是缸体(5)内装配有凸轮轴(16),凸轮轴(16)轴上装配有正时从动链轮(7)、进气凸轮(6)和排气凸轮(15),进气凸轮(6)和排气凸轮(15)分别贴着两下摇臂(8)的下臂端,曲轴箱(4)内装配的曲柄轴(1)轴上装配有正时主动链轮(2),正时主动链轮(2)与正时从动链轮(7)之间装配有链条(3)。
CN 200520034803 2005-07-09 2005-07-09 单缸四冲程汽油机的链条传动双凸轮推杆配气结构 Expired - Fee Related CN2821168Y (zh)

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CN 200520034803 CN2821168Y (zh) 2005-07-09 2005-07-09 单缸四冲程汽油机的链条传动双凸轮推杆配气结构

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CN 200520034803 CN2821168Y (zh) 2005-07-09 2005-07-09 单缸四冲程汽油机的链条传动双凸轮推杆配气结构

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100464058C (zh) * 2007-04-11 2009-02-25 苏州市吴中区双马机电有限公司 顶置凸轮轴发动机的气门开关控制装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100464058C (zh) * 2007-04-11 2009-02-25 苏州市吴中区双马机电有限公司 顶置凸轮轴发动机的气门开关控制装置

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C14 Grant of patent or utility model
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ASS Succession or assignment of patent right

Owner name: CHONGQING YUANTIANZHULI BICYCLE CO.,LTD.

Free format text: FORMER OWNER: XIONG ZIAN

Effective date: 20080926

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Effective date of registration: 20080926

Address after: Eight Chongqing town of Dadukou District Qiaozi village six clubs, zip code: 400080

Patentee after: Chongqing Yuantian Power Bicycle Co., Ltd.

Address before: Two street Jiulongpo District of Chongqing Science Park No. 169 with No. 10-1, zip code: 400039

Patentee before: Xiong Zian

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20060927

Termination date: 20110709