CN1847704A - 柔性拨块 - Google Patents

柔性拨块 Download PDF

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Publication number
CN1847704A
CN1847704A CN 200510065427 CN200510065427A CN1847704A CN 1847704 A CN1847704 A CN 1847704A CN 200510065427 CN200510065427 CN 200510065427 CN 200510065427 A CN200510065427 A CN 200510065427A CN 1847704 A CN1847704 A CN 1847704A
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China
Prior art keywords
guide sleeve
gearshift
shifting block
spring
coupling shaft
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CN 200510065427
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CN100567778C (zh
Inventor
欧阳抗美
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Shanghai Yingdaxin Automotive Electronic Co., Ltd.
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SHANGHAI YINGDAXIN AUTOMOTIVE ELECTRONIC CO Ltd
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Priority to CNB2005100654270A priority Critical patent/CN100567778C/zh
Publication of CN1847704A publication Critical patent/CN1847704A/zh
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Publication of CN100567778C publication Critical patent/CN100567778C/zh
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Abstract

本发明为汽车电子控制的自动变速系统的换挡拨块装置，是推动换挡同步环的拨块机构。目前的同类换挡拨块都是钢性整体机构，特别是在液压控制系统作用下，由于油温等外界因素变化，特别是主动轮和被动轮速度差的变化，会造成同步惯量的很大差别，同步力变化将很大，造成同步环不能柔性工作，换挡冲击严重。特别是在同步力要求大的挡位，冲击会更大。一般的解决办法是增大同步摩擦力，做成双锥以上同步环，这样技术难度和成本大幅增加。

Description

柔性拨块
技术领域
本发明为汽车电子控制的自动变速系统的换挡拨块装置，是推动换挡同步环的拨块机构。
背景技术
目前的同类换挡拨块都是钢性整体机构，特别是在液压控制系统作用下，由于油温等外界因素变化，特别是主动轮和被动轮速度差的变化，会造成同步惯量的很大差别，同步力变化将很大，造成同步环不能柔性工作，换挡冲击严重。特别是在同步力要求大的挡位，冲击会更大。一般的解决办法是增大同步摩擦力，做成双锥以上同步环，这样技术难度和成本大幅增加。
发明内容
为了克服普通机械变速箱同步摩擦力不足的缺点，使换挡柔顺，在装有换挡肖的换挡拨块座内孔的基础上，套入弹簧导向套，在相对安装的弹簧导向导中装入螺旋弹簧，将连接轴插入弹簧导向套和弹簧中，连接轴为台阶轴，插入导向套后，大端紧靠在导向套左端面，另一端通过定位套，紧靠在导向套的外端面，连接轴通过止退螺钉与左右换挡活塞杆连接。定位螺套分别拧紧在换挡拨块座孔的两端，装在换挡拨块座中的弹簧导向套，中间留有5-10mm间隙。在同步反作用力的作用下，降低运行速度，增加同步时间，控制施加在同步环上的压力不超过规定值，力量过大，也不至于损坏弹簧和换挡肖。
本发明的有益效果是由于采用了弹簧导向套和螺旋弹簧以及连接轴，达到了拨块柔性化的目的，使结构紧凑，换挡动作稳定柔顺，在换挡力过负荷的情况下，也能使系统正常工作，降低了成本，提高了寿命，满足了机械变速箱自动化的要求。
附图说明
图1是柔性拨块图；
图1中：1、左换挡活塞杆；2、止退螺钉；3、连接轴；4、换挡肖；5、换挡拨块座；6、止退螺钉；7、右换挡活塞杆；8、左定位螺套；9、左弹簧导向套；10、螺旋弹簧；11、右弹簧导向套；12、右定位螺套、13、定位套。
具体实施方式
在图1中，在装有换挡肖4的换挡拨块座5的内孔基础上，套入左弹簧导向套9和相对安装的弹簧导向套11，在弹簧导向套9、11中装入螺旋弹簧10，将连接轴3插入弹簧导向套9、11后，连接轴3的大端紧靠在左导向套9的外端面，另一端通过定位套12紧靠在右导向套11的外端面。连接轴3左端通过止退螺钉2、6与左右换挡活塞杆1、7连接。左右定位螺套8、12，分别拧紧在换挡拨块座5的两端，装在换挡拨块座5中的左右弹簧导向套9、12，中间留有5-10mm间隙。

Claims (4)

1、一种汽车换挡用柔性拨块，采用装有换挡肖的换挡拨块座为基础，通过连接轴与左右活塞杆连接，其特征在于：在换挡拨块座内孔的基础上，套入弹簧导向套，在相对安装的弹簧导向套中装入螺旋弹簧，将连接轴插入弹簧导向套和弹簧中。
2、根据权利要求1所述的柔性拨块，其特征在于：连接轴为台阶轴，插入导向套后，大端紧靠在导向套左端面，另一端通过定位套紧靠在右导向套的外端面。
3、根据权利要求1所述的柔性拨块，其特征在于：定位螺套分别拧紧在换挡拨块座孔的两端。
4、根据权利要求1所述的柔性拨块，其特征在于：装在换挡拨块座中的弹簧导向套，中间留有5-10mm间隙。
CNB2005100654270A 2005-04-05 2005-04-05 柔性拨块 Expired - Fee Related CN100567778C (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2005100654270A CN100567778C (zh) 2005-04-05 2005-04-05 柔性拨块

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2005100654270A CN100567778C (zh) 2005-04-05 2005-04-05 柔性拨块

Publications (2)

Publication Number Publication Date
CN1847704A true CN1847704A (zh) 2006-10-18
CN100567778C CN100567778C (zh) 2009-12-09

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CNB2005100654270A Expired - Fee Related CN100567778C (zh) 2005-04-05 2005-04-05 柔性拨块

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CN (1) CN100567778C (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103089980A (zh) * 2011-11-01 2013-05-08 欧阳抗美 一种选换挡缓冲器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103089980A (zh) * 2011-11-01 2013-05-08 欧阳抗美 一种选换挡缓冲器
CN103089980B (zh) * 2011-11-01 2016-07-06 杭州前进齿轮箱集团股份有限公司 一种选换挡缓冲器

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Publication number Publication date
CN100567778C (zh) 2009-12-09

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