CN104527783A - 双无级变速转向机构 - Google Patents

双无级变速转向机构 Download PDF

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CN104527783A
CN104527783A CN201510017930.2A CN201510017930A CN104527783A CN 104527783 A CN104527783 A CN 104527783A CN 201510017930 A CN201510017930 A CN 201510017930A CN 104527783 A CN104527783 A CN 104527783A
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output shaft
wheel disc
right output
left output
speed
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CN104527783B (zh
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陈全强
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Lens Intelligent Robot Changsha Co Ltd
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陈全强
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D11/00Steering non-deflectable wheels; Steering endless tracks or the like
    • B62D11/02Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
    • B62D11/06Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source
    • B62D11/10Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides by means of a single main power source using gearings with differential power outputs on opposite sides, e.g. twin-differential or epicyclic gears
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H9/00Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/04Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
    • F16H9/12Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
    • F16H9/16Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts
    • F16H9/18Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts only one flange of each pulley being adjustable
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H9/00Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
    • F16H9/02Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion
    • F16H9/04Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes
    • F16H9/12Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members
    • F16H9/16Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts
    • F16H2009/163Arrangements of two or more belt gearings mounted in parallel, e.g. for increasing transmittable torque

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)

Abstract

本发明涉及个人履带车辆技术领域,尤其是指一种双无级变速转向机构,包括减速箱体、装设于减速箱体内的左输出轴、右输出轴及主传动轴,减速箱体由两个壳体对合形成,所述主传动轴通过两个带式无级变速机构分别与左输出轴和右输出轴传动连接,该左输出轴和右输出轴的转速比为1:4~4:1。转向过程中,调速轮盘的左右位移量越大,两个主动带轮的宽度差越大,其左输出轴和右输出轴的转向角度也越大,从而实现了大小半径转弯的控制功能,适用于各种路况环境下小型履带车的使用,通过特定的转速差,既能保证车辆低速时的转向灵活性,又能保证车辆高速入弯时的安全性,防止过急转弯发生侧翻,安全性较高,实用性较强。

Description

双无级变速转向机构
技术领域
本发明涉及个人履带车辆技术领域,尤其是指一种双无级变速转向机构。
背景技术
履带车辆的转向系统的发展大致经历了转向离合器和液压机械差速转向系统等。目前已经提出了个人卡特彼勒履带车辆。例如,授予Martin 的美国专利第5305846 号公开了一种个人履带式车辆,这种个人履带式车辆用于由个人使用,包括一对卡特彼勒式履带,所述一对卡特彼勒式履带安装在使用者所站立的平台的下方。车辆的操作——包括通过改变驱动履带的相对速度来操纵车辆的转向——通过手动操作控制器来控制。
虽然能够构造Martin 所公开的履带式车辆,然而其存在若干缺陷。履带式车辆不同于轮式车辆,轮式车辆的转向方式难以用于履带式车辆上,常规行驶的履带式车辆与高速行驶的履带式车辆,其转向方式也大不一样,常规的履带式车辆通过其一侧履带停转,另一侧履带正常行驶的方式实现转向,但高速行驶的履带式车辆,若其一侧履带停转,则非常容易翻车而造成严重的安全事故,难以适用于可以高速行驶的履带式车辆。
发明内容
本发明要解决的技术问题是提供一种结构紧凑,可以调节左右输出轴转速比的双无级变速转向机构,通过调节左右两侧的履带轮的速度实现小型履带车的转向,既能保证车辆低速时的转向灵活性,又能保证车辆高速入弯时的安全性,防止过急转弯发生侧翻,安全性较高。
为了解决上述技术问题,本发明采用如下技术方案:一种双无级变速转向机构,包括减速箱体、装设于减速箱体内的左输出轴、右输出轴及主传动轴,减速箱体由两个壳体对合形成,所述主传动轴通过两个带式无级变速机构分别与左输出轴和右输出轴传动连接,该左输出轴和右输出轴的转速比为1:4~4:1。
优选的,所述带式无级变速机构包括装设于主传动轴的两个主动带轮及分别装设于左输出轴和右输出轴的两个从动带轮,该两个主动带轮的活动轮盘均位于两个主动带轮之间,所述两个活动轮盘固定连接形成调速轮盘,该调速轮盘的外沿套装有第一轴承及与该第一轴承连接的轴承套,所述减速箱体装设有用于驱动调速轮盘左右移动的转向总成组件。
优选的,所述主动带轮和调速轮盘的直径均为90mm~130mm,所述两个从动带轮的直径为135mm~160mm,主动带轮、从动带轮和调速轮盘的轮缘锥度相等,且该轮缘锥度为13°~20°。
优选的,所述左输出轴与主传动轴、右输出轴与主传动轴之间轴心距为140mm~200mm。
优选的,所述主动带轮和调速轮盘的直径均为105mm~115mm,所述两个从动带轮的直径为140mm~150mm;所述左输出轴与主传动轴、右输出轴与主传动轴之间轴心距为155mm~165mm,主动带轮、从动带轮和调速轮盘的轮缘锥度均为15°。
优选的,所述两个从动带轮的活动轮盘均位于两个从动带轮的外侧,所述左输出轴和右输出轴均套装有第一压紧弹簧和弹簧压盖,第一压紧弹簧的两端分别与弹簧压盖和活动轮盘抵接。
优选的,所述减速箱体的两侧分别开设有进风口和出风口,所述右输出轴上的弹簧压盖的外侧装设有风扇。
优选的,所述主传动轴套装有第二压紧弹簧和固装有弹簧挡板,该弹簧挡板的外侧装设有定盘限位片,该定盘限位片与主动带轮的定轮盘通过螺丝固定连接。
本发明的有益效果在于:本发明提供了一种双无级变速转向机构,小型履带车在高速行驶时,本发明变速发动机有效避免了转向时因单侧履带轮组停止运行而造成翻车事故,安全系数得到大大提高。转向过程中,调速轮盘的左右位移量越大,两个主动带轮的宽度差越大,其左输出轴和右输出轴的转向角度也越大,从而实现了大小半径转弯的控制功能,适用于各种路况环境下小型履带车的使用,通过调节左右两侧的履带轮的速度实现小型履带车的转向,既能保证车辆低速时的转向灵活性,又能保证车辆高速入弯时的安全性,防止过急转弯发生侧翻,安全性较高。实用性较强。
附图说明
图1为本发明实施例的立体结构分解示意图。
图2为本发明隐藏减速箱体时的立体结构示意图。
图3为本发明主传动轴部分的立体结构分解示意图。
图4为本发明左输出轴右输出轴部分的立体结构分解示意图。
具体实施方式
为了便于本领域技术人员的理解,下面结合实施例与附图对本发明作进一步的说明,实施方式提及的内容并非对本发明的限定。
如图1至图4所示,一种双无级变速转向机构,包括减速箱体2、装设于减速箱体2内的左输出轴3、右输出轴4及主传动轴5,减速箱体2由两个壳体1对合形成,所述主传动轴5通过两个带式无级变速机构分别与左输出轴3和右输出轴4传动连接。所述带式无级变速机构包括装设于主传动轴5的两个主动带轮6及分别装设于左输出轴3和右输出轴4的两个从动带轮7,该两个主动带轮6的活动轮盘8均位于两个主动带轮6之间,所述两个活动轮盘8固定连接形成调速轮盘9,该调速轮盘9的外沿套装有第一轴承10及与该第一轴承10连接的轴承套11,所述减速箱体2装设有用于驱动调速轮盘9左右移动的转向总成组件12。
在实施例一中,所述左输出轴3和右输出轴4的转速比为1:4~4:1,即两个输出轴的转速差达到最大时,左输出轴3和右输出轴4的转速比为1:4或4:1,不仅能保证车辆低速行驶时的转向灵活性,还能保证车辆高速入弯时的安全性,防止过急转弯发生侧翻,安全性较高。
本实施中,所述主动带轮和调速轮盘9的直径均为130mm,所述两个从动带轮7的直径为160mm;所述左输出轴3与主传动轴5、右输出轴4与主传动轴5之间轴心距为200mm,主动带轮6、从动带轮7和调速轮盘9的轮缘锥度相等,且该轮缘锥度为20°。在保障小型履带车安全性的前提下,变速皮带盘的尺寸不会过大,锥度适中,整体结构紧凑,易于制造和转向系统的布置。
本实施中,所述两个从动带轮7的活动轮盘8均位于两个从动带轮7的外侧,所述左输出轴3和右输出轴4均套装有第一压紧弹簧22和弹簧压盖23,第一压紧弹簧22的两端分别与弹簧压盖23和活动轮盘8抵接。在第一压紧弹簧22的作用下,活动轮盘8和定轮盘27始终向中间抵紧,以使从动带轮7的活动轮盘8和定轮盘27均能紧密地与传动皮带紧贴,防止带式无级变速机构的皮带在传递扭矩时发生打滑现象。
本实施中,所述减速箱体2的两侧分别开设有进风口13和出风口14,所述右输出轴4上的弹簧压盖23的外侧装设有风扇15,用于为减速箱体2进行通风散热,降低皮带运转时的温度,延长减速箱体2内部构件的使用寿命。
本实施中,所述主传动轴5套装有第二压紧弹簧24和固装有弹簧挡板25,该弹簧挡板25的外侧装设有定盘限位片26,该定盘限位片26与主动带轮6的定轮盘27通过螺丝固定连接。
在主动带轮6的定轮盘27组件加上弹簧第二压紧弹簧24,使主动带轮6的定轮盘27组件可在主传动轴5上有一定范围的轴向移动,这样,即使在主动带轮6的定轮盘27、调速轮盘9、主动带轮6的定轮盘27没有旋转的情况下,通过上述转向总成组件12推动调速轮盘9轴向左右移动,力量通过调速轮盘9—传动皮带—主动带轮6的定轮盘27压缩第二压紧弹簧24,使车子在最短的时间内进入最大差速比,减小转弯半径,可操控性能更强,驾驶体验感觉更佳。
在实施例二中,所述左输出轴3和右输出轴4的转速比为1:3.5~3.5:1,即两个输出轴的转速差达到最大时,左输出轴3和右输出轴4的转速比为1:3.5或3.5:1,不仅能保证车辆低速行驶时的转向灵活性,还能保证车辆高速入弯时的安全性,防止过急转弯发生侧翻,安全性更高。
本实施中,所述主动带轮和调速轮盘9的直径均为90mm,所述两个从动带轮7的直径为135mm;所述左输出轴3与主传动轴5、右输出轴4与主传动轴5之间轴心距为140mm,主动带轮6、从动带轮7和调速轮盘9的轮缘锥度相等,且该轮缘锥度为13°。在保障小型履带车安全性的前提下,变速皮带盘的尺寸不会过大,锥度适中,整体结构紧凑,易于制造和转向系统的布置。
在实施例三中,所述左输出轴3和右输出轴4的转速比为1:3.2~3.2:1,即两个输出轴的转速差达到最大时,左输出轴3和右输出轴4的转速比为1:3.2或3.2:1,不仅能保证车辆低速行驶时的转向灵活性,还能保证车辆高速入弯时的安全性,防止过急转弯发生侧翻,安全性达到最佳。
本实施中,所述主动带轮和调速轮盘9的直径均为113mm,所述两个从动带轮7的直径为146mm;所述左输出轴3与主传动轴5、右输出轴4与主传动轴5之间轴心距为163mm,主动带轮6、从动带轮7和调速轮盘9的轮缘锥度相等,且该轮缘锥度为16°。在保障小型履带车安全性的前提下,变速皮带盘的尺寸不会过大,锥度适中,整体结构紧凑,易于制造和转向系统的布置,选用皮带的型号为650×26×28的V带,其传动效率、内部结构紧凑性和安全性均达到最佳,使用寿命更长,实用性得到大大提高。
上述实施例为本发明较佳的实现方案,除此之外,本发明还可以其它方式实现,在不脱离本技术方案构思的前提下任何显而易见的替换均在本发明的保护范围之内。

Claims (8)

1.双无级变速转向机构,包括减速箱体(2)、装设于减速箱体(2)内的左输出轴(3)、右输出轴(4)及主传动轴(5),减速箱体(2)由两个壳体(1)对合形成,其特征在于:所述主传动轴(5)通过两个带式无级变速机构分别与左输出轴(3)和右输出轴(4)传动连接,该左输出轴(3)和右输出轴(4)的转速比为1:4~4:1。
2.根据权利要求1所述的双无级变速转向机构,其特征在于:所述带式无级变速机构包括装设于主传动轴(5)的两个主动带轮(6)及分别装设于左输出轴(3)和右输出轴(4)的两个从动带轮(7),该两个主动带轮(6)的活动轮盘(8)均位于两个主动带轮(6)之间,所述两个活动轮盘(8)固定连接形成调速轮盘(9),该调速轮盘(9)的外沿套装有第一轴承(10)及与该第一轴承(10)连接的轴承套(11),所述减速箱体(2)装设有用于驱动调速轮盘(9)左右移动的转向总成组件(12)。
3.根据权利要求2所述的双无级变速转向机构,其特征在于:所述主动带轮(6)和调速轮盘(9)的直径均为90mm~130mm,所述两个从动带轮(7)的直径为135mm~160mm,主动带轮(6)、从动带轮(7)和调速轮盘(9)的轮缘锥度相等,且该轮缘锥度为13°~20°。
4.根据权利要求2所述的双无级变速转向机构,其特征在于:所述左输出轴(3)与主传动轴(5)、右输出轴(4)与主传动轴(5)之间轴心距为140mm~200mm。
5.根据权利要求2所述的双无级变速转向机构,其特征在于:所述主动带轮和调速轮盘(9)的直径均为105mm~115mm,所述两个从动带轮(7)的直径为140mm~150mm;所述左输出轴(3)与主传动轴(5)、右输出轴(4)与主传动轴(5)之间轴心距为155mm~165mm,主动带轮(6)、从动带轮(7)和调速轮盘(9)的轮缘锥度均为15°。
6.根据权利要求2所述的双无级变速转向机构,其特征在于:所述两个从动带轮(7)的活动轮盘(8)均位于两个从动带轮(7)的外侧,所述左输出轴(3)和右输出轴(4)均套装有第一压紧弹簧(22)和弹簧压盖(23),第一压紧弹簧(22)的两端分别与弹簧压盖(23)和活动轮盘(8)抵接。
7.根据权利要求6所述的双无级变速转向机构,其特征在于:所述减速箱体(2)的两侧分别开设有进风口(13)和出风口(14),所述右输出轴(4)上的弹簧压盖(23)的外侧装设有风扇(15)。
8.根据权利要求2所述的双无级变速转向机构,其特征在于:所述主传动轴(5)套装有第二压紧弹簧(24)和固装有弹簧挡板(25),该弹簧挡板(25)的外侧装设有定盘限位片(26),该定盘限位片(26)与主动带轮(6)的定轮盘(27)通过螺丝固定连接。
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