CN102513180B - 一种正置倒置组合式复合多曲柄摇杆机构破碎机 - Google Patents

一种正置倒置组合式复合多曲柄摇杆机构破碎机 Download PDF

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CN102513180B
CN102513180B CN201210009819.5A CN201210009819A CN102513180B CN 102513180 B CN102513180 B CN 102513180B CN 201210009819 A CN201210009819 A CN 201210009819A CN 102513180 B CN102513180 B CN 102513180B
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朱兴良
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Yiwu Lingfeng Intellectual Property Service Co ltd
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Abstract

本发明公开了一种正置倒置组合式复合多曲柄摇杆机构破碎机,结构特征是:动颚由整体状改进为上、下两节动颚组合状;偏心轴设置在上、下动颚结合部;上、下动颚分别配置颚板并与机架上的固定颚板形成上、下破碎副,摇杆机构设为上、下复合多曲柄摇杆机构。本发明显著的功能特点是:使破碎机的破碎腔上端与下端共同具有“增力效应”的破碎力和足够大的水平行程;上端的水平行程满足大料需要大冲程的破碎要求,下端的水平行程满足“小颗粒、大排放”的细碎排放要求。本发明将是综合技术参数较为合理,结构紧凑、功能优越、高效节能的破碎设备。

Description

一种正置倒置组合式复合多曲柄摇杆机构破碎机
技术领域
本发明涉及破碎机械技术领域,更具体地说是一种正置倒置组合式复合多曲柄摇杆机构破碎机。
背景技术
颚式破碎机,俗称颚破,是历史悠久,使用最广泛的破碎设备之一。
现有技术下,颚破有一个先天性结构弊端,就是动颚下部的肘板结构是一个处于“减力效应”下的机构。它是以排放为主要功能,而不是以破碎为主要功能设置的。本发明人对此作了改进:用双曲柄摇杆机构代替原来的单曲柄摇杆机构,变动颚下部“减力效应”为“增力效应”,使动颚下部原来以排放功能为主的设置提升为以破碎功能为主的设置(排放功能是顺承完成)。这样,从效果上看,实际上相当于一台设备具有了二级破碎的功能和效果,使颚破的破碎效率大幅度提高(详见本申请人的发明专利申请号为201110092031.0,发明名称为“一种具有双轴双曲柄摇杆机构的颚式破碎机”)。
美中不足的是上述先前的发明中:(1)动颚水平行程是上小、下大(因为动颚以偏心驱动轴为支点运动,其动颚摆幅为扇形,离偏心轴轴心越远摆幅越大,故动颚下部摆幅大而上部摆幅小);(2)破碎力也是上小下大(因为双曲柄摇杆机构使动颚下部的破碎力具有增力效应”)。双曲柄摇杆机构这种独特的性能,利用好了就是优点,利用反了就是缺点。比如:双曲柄摇杆机构的增力效应,使其颚破动颚下部具有比动颚上部更大的破碎力。这一特性符合颚破作为二段式破碎时其下部细碎作功比上部粗碎作功更大的现实要求,对此是一种优点。但从另一方面看,在动颚上部原料大需要大行程,下部原料小需要小行程,应该是摆幅上大下小,对此又是一种缺点。
针对上述矛盾,为了满足破碎机需要动颚行程上大下小,破碎力也要求上大下小的工作状况,发明人又设计了倒置式双曲柄摇杆机构(申请号为201120410296.6,发明名称为“一种倒置式双曲柄摇杆机构的破碎机”),以满足上述特征要求。本发明人曾认为,解决的办法是让双曲柄摇杆机构有正置式和倒置式两种形式的选择:当要求其破碎力为“上小、下大”、破碎冲程“上小、下大”时,选用正置式;反之,当要求其破碎力为“上大、下小”、破碎冲程“上大、下小”时,选用倒置式。
发明人现在进一步的思考是能否在同一设备中同时满足上述两种工况要求。
发明内容
本发明的目的在于克服上述现有技术的不足,提供了一种使最大限度提升颚破的破碎功能与效率的正置倒置组合式复合多曲柄摇杆机构破碎机破碎机。
为了达到以上目的,本发明通过以下技术方案实现:一种正置倒置组合式复合多曲柄摇杆机构破碎机,包括机架、传动机构、动颚机构、复合多曲柄摇杆机构、固定颚板和活动颚板,固定颚板和活动颚板对峙形成破碎腔,固定颚板设置在机架上,活动颚板设置在动颚机构上,动颚机构与复合多曲柄摇杆机构相连接,其特征在于,所述的动颚机构的结构:包括前偏心驱动轴、上节前动颚、下节前动颚;
所述的复合多曲柄摇杆机构的结构:包括后偏心驱动轴、上段前肘板、上段后肘板、上节后动颚、下节后动颚、下段前肘板和下段后肘板;
上节前动颚下端与下节前动颚上端均枢接在前偏心驱动轴上,上节后动颚下端与下节后动颚上端均枢接在后偏心驱动轴上,前偏心驱动轴和后偏心驱动轴均连接在传动机构上;
上段前肘板前端枢接在上节前动颚后侧上方,后端枢接在上节后动颚前侧上方;上段后肘板前端枢接在上节后动颚后侧上方,后端枢接在机架上;
下段前肘板前端枢接在下节前动颚后侧下方,后端枢接在下节后动颚前侧下方;下段后肘板前端枢接在下节后动颚后侧下方,后端枢接在机架上。
本发明显著的结构特征是:①动颚由整体状改进上、下两节动颚组合状;②偏心轴设置在上、下动颚结合部;③上、下动颚分别配置颚板并与机架上的固定颚板形成上、下破碎副;④曲柄摇杆机构设计为复合多曲柄摇杆机构。
复合多曲柄摇杆机构是本发明中的一个重要亮点,它是这样一套机构:由后偏心驱动轴、上节后动颚、上段前肘板组成一套曲柄摇杆机构,其中后偏心驱动轴为曲柄,上节后动颚为连杆,上段前肘板为摇杆。同理,另外还有三个曲柄摇杆机构(“后偏心驱动轴+上节后动颚+上段后肘板”一套;“后偏心驱动轴+下节后动颚+下段前肘板”一套;还有“后偏心驱动轴+下节后动颚+下节后肘板”一套)。以上四套曲柄摇杆机构相互叠置并复合连接成一体。
复合多曲柄摇杆机构也可看成是上、下两个“双曲柄摇杆机构”的组合体。它具有以下几个方面的显著功效:
<一>“双曲柄摇杆机构”具有“增力效应”,使破碎机具有高效率,(详见本发明人先前申请的发明,申请号为:201110092031.0,发明名称为:一种具有双轴双曲柄摇杆机构的颚式破碎机)。但双曲柄摇杆机构只使动颚下部具有“增力效应”,而动颚上部则没有。本发明中的复合多曲柄摇杆机构使动颚上、下部都具有“增力效应”,使破碎机的结构更完善、破碎效率更高。
<二>复合多曲柄摇杆机构的上、下两级“双曲柄摇杆机构”的运动(即一紧一松运动)可有多种组合:①可以上、下两级同步一紧一松;②也可以反向一紧一松,即上、下两级的进程破碎作功与回程空转是错开的,当上边为进程破碎作功收紧时,下边是回程空转放松,当上边为回程放松时,下边是进程破碎作功收紧。这样,后偏心驱动轴就处于全程驱动作功状态。至此,现有技术颚式破碎机半程作功的先天性弊端就由本发明攻克消除了。
<三>动颚运动水平行程分布合理,并可控可调。虽然现有技术复摆破要比简摆破的动颚水平行程合理,但复摆破上部行程是不可调,而本发明是上、下水平行程都可调,能使破碎机始终处于最佳状态工作。
从直观上看,本发明可看成是由一个正置双曲柄摇杆机构和一个倒置双曲柄摇杆机构组合而成(偏心轴共用)。从技术上看,它解决了现有技术颚破设计中,对水平行程“上大下小”或“上小下大”必须二者选一的难题。在本发明中上节后动颚完成的是粗破功能,其水平行程可设置为“上大下小”,以满足物料上大下小所需的水平行程要求;下节后动颚完成的是细破功能,水平行程可设置为上小下大,以满足动颚下部“小紧边,大行程”,实现“小颗粒,大排量”要求。变二者选其一为二者相统一。
在现有技术下,颚破分为粗破系列和细碎系列,粗破的破碎腔啮合角大(小于26度),注重的是破碎比(破碎成品的颗粒尺寸大小与原料颗粒尺寸大小之比),对动颚的运动特性要求是水平行程上大下小,即上面大料需要破碎大行程,下部小料需要破碎小行程。
在现有技术下,细碎的破碎腔啮合角小(小于19度),注重的是均匀的细料,要求颗粒细化对动颚的运动特性要求是水平行程小,而对排放口又要求有大排放,需要水平行程大。
在现有技术下,要同时实现上述粗破和细碎两种破碎功能的要求是通过破碎生产线来完成的,即运用多级破碎。
本发明将现有技术下的动颚设计为上、下两节动颚组合状,并结合“复合多曲柄摇杆机构设计”,设计成“正置”和“倒置”两者优点相结合的破碎机,使破碎副的啮合角水平行程及破碎力的分布实现完美统一。这是本发明的核心技术。
作为优选,活动颚板包括上段活动颚板和下段活动颚板,上段活动颚板设置在上节前动颚上,下段活动颚板设置在下节前动颚上。
上、下动颚分别配置颚板并与机架上的固定颚板形成上、下破碎副,能够实现真正技术意义上的一机二级破碎的目的。
作为优选,传动机构包括前传动齿轮和后传动齿轮,前偏心驱动轴连接在前传动齿轮上,后偏心驱动轴连接在后传动齿轮上,前传动齿轮和后传动齿轮相啮合。
齿轮啮合传动的同步性更强,虽然不同双电机也能够达到相同目的,但是后者成本更好,而且或多或少有点差异。
附图说明
图1为本发明的一种结构示意图。
图中:1-机架,2-固定颚板,3-前偏心驱动轴,4-后偏心驱动轴,5-上节前动颚,6-下节前动颚,7-上段前肘板,8-上段后肘板,9-上节后动颚,10-下节后动颚,11-下段前肘板,12-下段后肘板,13-上段活动颚板,14-下段活动颚板,15-前传动齿轮,16-后传动齿轮。
具体实施方式
下面结合附图和具体实施例对本发明作进一步的说明。
实施例:如图1所示,一种正置倒置组合式复合多曲柄摇杆机构破碎机,包括机架1,机架1上设置有固定颚板2。
上节前动颚5下端与下节前动颚6上端均枢接在前偏心驱动轴3上,上节后动颚9下端与下节后动颚10上端均枢接在后偏心驱动轴4上。前偏心驱动轴3连接在前传动齿轮15上,后偏心驱动轴4连接在后传动齿轮16上,前传动齿轮15和后传动齿轮16相啮合。
上段前肘板7前端枢接在上节前动颚5后侧上方,后端枢接在上节后动颚9前侧上方;上段后肘板8前端枢接在上节后动颚9后侧上方,后端枢接在机架1上;
下段前肘板11前端枢接在下节前动颚6后侧下方,后端枢接在下节后动颚10前侧下方;下段后肘板12前端枢接在下节后动颚10后侧下方,后端枢接在机架1上。
活动颚板包括上段活动颚板13和下段活动颚板14,上段活动颚板13设置在上节前动颚5上,下段活动颚板14设置在下节前动颚6上。上段活动颚板13和下段活动颚板14分别与固定颚板2上、下部分对峙形成上、下两级破碎腔。
以上所述之实施例仅为本发明之较佳实施例,并非以此限制本发明的实施范围,故凡依本发明之形状、原理所作的变化,均应涵盖在本发明的保护范围内。

Claims (1)

1.一种正置倒置组合式复合多曲柄摇杆机构破碎机,包括机架、传动机构、动颚机构、复合多曲柄摇杆机构、固定颚板和活动颚板,固定颚板和活动颚板对峙形成破碎腔,固定颚板设置在机架上,活动颚板设置在动颚机构上,动颚机构与复合多曲柄摇杆机构相连接,其特征在于,所述的动颚机构的结构:包括前偏心驱动轴、上节前动颚、下节前动颚;活动颚板包括上段活动颚板和下段活动颚板,上段活动颚板设置在上节前动颚上,下段活动颚板设置在下节前动颚上;
所述的复合多曲柄摇杆机构的结构:包括后偏心驱动轴、上段前肘板、上段后肘板、上节后动颚、下节后动颚、下段前肘板和下段后肘板;
上节前动颚下端与下节前动颚上端均枢接在前偏心驱动轴上,上节后动颚下端与下节后动颚上端均枢接在后偏心驱动轴上,前偏心驱动轴和后偏心驱动轴均连接在传动机构上;
上段前肘板前端枢接在上节前动颚后侧上方,后端枢接在上节后动颚前侧上方;上段后肘板前端枢接在上节后动颚后侧上方,后端枢接在机架上;
下段前肘板前端枢接在下节前动颚后侧下方,后端枢接在下节后动颚前侧下方;下段后肘板前端枢接在下节后动颚后侧下方,后端枢接在机架上;
传动机构包括前传动齿轮和后传动齿轮,前偏心驱动轴连接在前传动齿轮上,后偏心驱动轴连接在后传动齿轮上,前传动齿轮和后传动齿轮相啮合。
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