CN102947114B - 岩石钻机和下坡驱动的方法 - Google Patents
岩石钻机和下坡驱动的方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000007774 longterm Effects 0.000 claims abstract description 5
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- 238000001816 cooling Methods 0.000 claims description 38
- 238000005553 drilling Methods 0.000 claims description 30
- 239000000110 cooling liquid Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 9
- 238000003754 machining Methods 0.000 claims description 8
- 238000002485 combustion reaction Methods 0.000 claims description 7
- 230000005520 electrodynamics Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 1
- 238000005381 potential energy Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 5
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Abstract
本发明涉及一种岩石钻机和用于岩石钻机的下坡驱动的方法。所述岩石钻机(1)包括电驱动设备(16),该电驱动设备(16)的驱动马达(M)在长期下坡驱动中起主制动器的作用。因而,所述驱动马达将动能转化为电能,通过所述电能对储能器(B)充电。为了消耗过剩电能,开启液压系统(13)或压缩空气系统(50)。由电动马达(33、55)驱动液压泵(34)和压缩机(54)。
Description
技术领域
本发明涉及一种岩石钻机,其包括设有岩石钻凿机器的吊臂,以及压力介质系统,其具有与之连接的致动器。该岩石钻机借助于无内燃机驱动设备移动,所述驱动设备包括至少一个电驱动马达和位于该驱动马达和牵引轮之间的动力传动构件。在转移驱动中,可以将待被使用的电能充到储能器中,所述储能器被包括在电动系统中。在长期下坡驱动中,驱动马达用作发电机和主制动器,并且控制所产生的电能,用以对储能器充电。
此外,本发明涉及一种用于岩石钻机的下坡驱动的方法。
在本申请的独立权利要求的前序部分中更详细描述本发明的领域。
背景技术
在矿中,岩石钻机被用于在计划好的钻凿地点处钻凿钻孔。当钻孔已被钻凿出来时,将岩石钻机转移至下一钻凿地点,用以钻凿新的钻凿扇面或钻凿面。具体地,在地下矿中,借助于电动马达产生的动力来执行转移驱动是有利的。转移驱动所需的能量可以存储在电池中。在矿中,也常常存在沿着向下倾斜的驱动斜坡来驱动岩石钻机的需求。在大型矿中,下坡驱动甚至可能耗费非常长的时间。在下坡驱动期间,电驱动马达被连接用作发电机,由该发电机产生的电被用于对电池充电。然而,在长期下坡驱动中,产生如此大量的电能,以致于使得不能将其全部用于对电池充电。因而,岩石钻机的电动系统对所产生电能进行控制的能力有限,这可以使得更难以实现高效的下坡驱动。
发明内容
本发明的目标在于提供一种新颖且改进的岩石钻机,以及涉及一种用于岩石钻机的下坡驱动的方法。
根据本发明的岩石钻机特征在于,控制单元包括这样一种控制策略,控制单元根据该控制策略响应于电动系统不足以消耗下坡驱动中所产生的过剩电能而开启至少一个压力介质系统,由此能够借助于压力介质系统而有意地提高电能消耗。
根据本发明的方法特征在于,响应对消耗过剩能量的需求而将下坡驱动期间所产生的电能转化为压能。
思想在于,在下坡驱动中,借助于被连接用作发电机的电驱动马达对岩石钻机进行减速。由此,岩石钻机的动能被转化为电能,利用该电能对储能器进行充电。不能够被存储在储能器中的过剩电能被用于驱动压力介质系统。因而,一些在减速期间产生的电能转化为压能。
优势在于,能够通过启动压力介质系统而有意地增加岩石钻机的能量消耗。因而,能够将下坡驱动的驱动速度保持足够高,因此岩石钻机的效率是良好的。
实施例的思想在于,控制单元包括这样一种控制策略,根据该控制策略,控制单元对系统消耗在减速中所产生的电能的能力进行考虑来控制下坡驱动的速度。在电动系统不能够再接收或使用向其提供的更大量电能的情况下,控制系统开始限制岩石钻机的下坡驱动速度。当以非常低的速度驱动车辆下坡时,在驱动马达中产生较少电能。
实施例的思想在于,考虑所针对的系统的最高电消耗,在下坡驱动中将岩石钻机的驱动速度最大化。
实施例的思想在于,在下坡驱动期间,增加对压能的需求以增加能量消耗。
实施例的思想在于,岩石钻机包括一种钻凿液压系统,在下坡驱动期间,该钻凿液压系统被控制单元开启,使得过剩电能能够被消耗。控制单元可包括用以实施该操作的控制策略。此外,可行的是,在下坡驱动期间开启被包括在钻凿液压系统中的一个或更多个液压致动器,因此对液压动力的需求增加。所述液压致动器可以例如是撞击装置、旋转装置、进给装置、吊臂缸或影响钻凿的另一致动器。该应用的优势在于,能够借助于岩石钻机的现有系统和组件来增加电能消耗。
实施例的思想在于,压力介质系统设有至少一个液压组件,所述液压组件能够在下坡驱动期间被开启,使得能够增加压力介质系统的能量消耗。控制单元可包括实施该操作的控制策略。该应用提供了一种用以提高压能消耗的相当简单和高效的方式。借助于所述组件,能够将压能转化为热能。
实施例的思想在于,岩石钻机包括至少一个压缩空气系统,在下坡驱动期间所述压缩空气系统被控制单元开启。控制单元可包括实施该操作的控制策略。由于该应用,能够将过剩电能用于运行一个或更多个压缩机。所产生的压缩空气能够用于在下坡驱动期间运行致动器。此外,可行的是,在下坡驱动期间,借助于压缩空气来冷却岩石钻机的组件或系统中的一个组件或系统。
实施例的思想在于,在下坡驱动期间,控制由压力介质系统产生的压力介质,用来冷却被包括在电动系统的至少一个电动组件。岩石钻机的液压系统、压缩空气系统或这两个系统可以被布置为用以提供用于冷却的压力介质。由于冷却,能够增加被包括在电动系统中的组件的载荷。此外,可行的是,使用所产生的压力流体和压缩空气来冷却岩石钻机的通常的运行制动器。
实施例的思想在于,该岩石钻机包括液体冷却系统,用于冷却被包括在电动系统中的一个或更多个电动组件。控制单元能够开启该液体冷却系统用于下坡驱动。由于该液体冷却系统,能够增加被包括在电动系统中的组件的载荷。
实施例的思想在于,岩石钻机包括液体冷却系统,利用该液体冷却系统能够冷却电动系统的组件。此外,压力介质系统被布置成用以在下坡驱动期间冷却液体冷却系统的冷却液体。
实施例的思想在于,控制单元控制被连接至压力介质系统的一个或更多个致动器,以在下坡驱动期间开启所述一个或更多个致动器。即使不存在对致动器的正常运行的需要,也故意开启所述致动器,以提高能量消耗。
实施例的思想在于,电动系统包括至少一个电动制动电阻,在下坡驱动中能够向所述电动制动电阻提供所产生的过剩电能。因而,在对储能器进行充电之后剩余的过剩电能能够被转化为制动电阻中的热能。制动电阻是增加在系统中的电消耗的相当简单的方式。制动电阻的进一步优势是其良好的载荷容量。
实施例的思想在于,电动系统包括一个或更多个制动电阻,所述制动电阻能够在下坡驱动期间与其额定载荷相比短暂地过载。控制单元或其中的载荷监测装置可设有允许所述过载的控制策略。该应用提高了系统的动态性。
实施例的思想在于,产生的压能被存储在一个或更多个压力储蓄器中。随后,可在移动载体或在操作压力介质驱动致动器时利用该存储的压能。压力储集器允许提高岩石钻机的能量效率。
附图说明
将在附图中更详细地解释本发明的一些实施例,其中:
图1是示意性示出被驱动至钻凿地点的岩石钻机的侧视图;
图2示意性示出具有电驱动马达的驱动设备,该电驱动马达通过防滑机械驱动传动装置而连接至牵引轮;
图3示意性示出第二种驱动设备,其中电动马达运行液压驱动传动装置;
图4示意性示出一些压力介质系统和液体冷却系统;并且
图5示意性示出关于控制下坡驱动的一些方面。
在附图中,为了清晰起见,以简化方式示出一些实施例。在附图中,利用相同附图标记指示类似部件。
具体实施方式
图1示出可行的岩石钻机1,其具有可移动载体2,该可移动载体2具有一个或更多个吊臂3a、3b,所述吊臂3a、3b配备有钻凿单元4。钻凿单元4可包括进给横梁5,该进给横梁5具有能够借助于进给装置7而在进给横梁5上移动的岩石钻凿机器6。岩石钻凿机器6可包括用于在工具9上产生冲击脉冲的撞击装置8,和用于旋转工具9的旋转装置10。此外,岩石钻凿机器可包括冲洗装置。图中示出的吊臂3a和布置在其中的钻凿单元4旨在用于在坑道的坑面11或在对应的钻凿地点中钻凿钻孔。可替代地,吊臂和在其上的钻凿单元可以被设计用于在岩洞的洞顶和洞壁中钻凿扇形的钻孔。此外,岩石钻机1可包括设有锚固装置12的吊臂3b,该锚固装置12也包括岩石钻凿机器6。岩石钻机1可包括一个或更多个液压系统13,液压系统13包括液压泵34、液压通道、液压罐和必要的控制装置,诸如阀等。此外,可将一个或更多个液压致动器连接至液压系统13。液压系统13可能是钻凿液压系统,移动吊臂3a、3b以及岩石钻凿机器6所必需的致动器15连接至所述钻凿液压系统。岩石钻机1还包括一个或更多个控制单元C,所述控制单元C被布置为用以控制岩石钻机1的上述系统。控制单元C可以是计算机或相应的控制装置,所述计算机或相应的控制装置包括处理器、可编程逻辑电路或任何其它适合用于该目的的控制装置,可将至少一个控制策略设定给所述控制单元C,所述控制单元C根据控制策略独立地或与操作员协作地实施控制。
在钻凿地点P,利用岩石钻机1钻凿一个或更多个钻孔。当已经完成确定用于钻凿地点P的任务时,将岩石钻机1从钻凿地点P转移驱动到新的钻凿地点或者其它地方,例如进行维护的地点。在大型矿中,也存在沿着长距离的向下倾斜驱动斜坡驱动岩石钻机1的其它需要。岩石钻机1设有驱动设备6,其完全不包括内燃机,即其是无内燃机的设备。代替地,驱动设备16包括一个或更多个电动马达M,其产生转移驱动中所需的动力。可将电动马达M连接至变速箱17,旋转动力通过轴或相应的传动构件18而从变速箱17传递至一个或更多个轮子19。可以将转移驱动所需的能量充到储能器B中,所述储能器B例如可以是电池或电池组。驱动设备16可另外地包括一个或更多个控制装置S和一个或更多个制动电阻20。驱动设备16因此包括影响转移驱动的多个电动组件K。此外,岩石钻机1可设有液体冷却系统21,通过该液体冷却系统21可以冷却被包括在驱动设备16中的电动组件K。
图2示出驱动设备6和一种用于在下坡驱动的减速期间将动能转化为电能的布置。在驱动设备16中,可通过防滑传动路径22将电动马达M直接连接至变速箱17,变速箱17可以在驱动方向上并且相应地在相反方向上包括一个、两个或更多个档位。可借助于轴23将旋转扭矩从变速箱17传递至轮轴24。在轴23和24之间,可以存在角驱动装置25等。在该情况下,在车轮19和电动马达M之间存在机械防滑传动。电动马达M还被用于减速,在该情形中,当沿着矿中的驱动斜坡向下驱动岩石钻机时,马达M用作发电机并且将载体2的动能转化成电能。所产生的电能被充到储能器B中并且因而被再生。不能够被利用的过剩电能可以被转化成制动电阻20中的热能。驱动设备16还包括控制装置S,该控制装置S可包括变频器,通过该变频器,在驱动期间和在减速期间都能够无级地控制电动马达M的旋转。控制装置S还可包括用于控制电驱动系统中的电流的其它必要的电控装置。控制装置S可包括,例如用于将储能器B和制动电阻20连接至电驱动系统的控制设备。控制装置S的运行由控制单元C控制。
在本申请中,“变频器”指的是一种控制构件,能够通过所述控制构件以无级的方式控制电驱动马达的转速。变频器可以是逆变器或其可以是DC/AC转换器,其控制电动马达的运行。
图2以虚线示出另一可替换应用,其中以防滑方式将电驱动马达直接连接至传动构件。左侧的轴24连接有轮子专用电动轮毂马达M1,其可以连接有所需的变速箱。此外,可以借助于一个共有的电驱动马达M2将旋转扭矩提供给轴24。
控制单元C不仅可以控制电驱动系统,而且还可以控制一个或更多个压力介质系统V的运行。压力介质系统V可包括液压系统13和压缩空气系统50。控制单元C可包括控制泵、控制构件和这些系统的致动器。此外,控制系统C包括监测系统,该监测系统监测电驱动系统中所产生的电能、电能的消耗以及储能器的充电水平和其接收能量的容量。在监测的基础上,控制单元C能够控制储能器B的充电,并且在下坡驱动期间使用压力介质系统V,以增加电消耗。
通过图2更明白的是,控制单元C也可控制液体冷却系统21的运行。液体冷却系统21可包括多个冷却回路26a-26d,驱动传动装置的一个或更多个电动组件K连接至每条回路。冷却回路26可设有一个或更多个阀或相应的控制构件27,通过所述阀或控制构件27可以影响冷却回路26中的液体流动。控制单元C可控制这些控制构件27,使得将实现根据冷却策略的冷却。还可以的是,控制液体冷却系统21的泵28,由此可以增加或降低冷却液体在系统中的流动。此外,液体冷却系统21包括至少一个冷却单元29,通过该至少一个冷却单元29将热能传递离开冷却液体,即:冷却液体被冷却。冷却单元29可包括传统类型的散热器和用于增强冷却的鼓风机。可替代地,冷却单元29可包括热交换器,通过该热交换器将热能从冷却液体传递至另一液体,诸如液压系统的液体。此外,可行的是,冷却单元29包括热泵,该热泵具有压缩机,利用该压缩机能够将热能从冷却液体传递到另一液体中,或者传递至室外空气。控制单元C还可控制冷却单元29的运行,使得能够影响冷却液体的温度。当有必要时,可以对冷却液体进行预冷却。
图3示出驱动设备16的可替换应用,其中电动马达M被布置为用以运行液压泵30,并且所产生的液压动力驱动被连接至变速箱17的液压马达31。因此,涉及的是液压驱动传动装置。被包括在驱动设备中的电动马达M在下坡驱动时能够被用作制动器。然后,由液压泵30产生的液压压力运行电动马达,所述电动马达被连接为用以在下坡驱动期间用作发电机。因此,电动马达M产生电能,能够利用该电能对储能器充电。能够通过开启岩石钻机的电驱动系统,尤其是液压系统13和压缩空气系统50来消耗过剩电能。图3还以虚线示出液压马达31和变速箱的另一选择的液压轮毂马达H1,和驱动轴24的液压马达H2。
图4示出岩石钻机1的压力介质系统V和冷却系统。钻凿液压系统13可包括马达33、泵34、通道35、液压罐36和控制设备37,用于将液压流体引导至与该系统连接的吊臂3a的致动器15、进给装置7和岩石钻凿机器6。此外,液压系统13可包括液压回路51,当期望增加液压系统13中的能量消耗时,能够通过控制单元C开启该液压回路51。液压回路51可包括一个或更多个液压组件52,其导致压力损失并且其能够被控制单元C控制。组件52可以是例如节流阀、阀门,诸如流量控制阀、液压马达或另一个液压致动器。因此,为了提高液压动力的消耗,控制单元C可使用一个或更多个钻凿致动器或另一个致动器,或者其可向着节流阀或类似的组件52引导液压压力。此外,可行的是,在压力储蓄器53中存储液压能。
此外,可启动压缩空气系统50,因此驱动压缩机54的电动马达55消耗电驱动系统中所产生的过剩电能。由压缩机54产生的空气射流可用于冷却驱动设备的制动电阻26或者另一组件K。
图4还示出液体冷却系统21和液压系统13之间可以存在热交换器32,其允许热能在系统之间传递。因此,可以在两个液体系统之间平衡热载荷。该图还示出了实施例的极度简化,其中通过连接装置46将冷却系统21连接至液压系统13,由此可以使用液压流体作为冷却液体。
图4还示出可以通过温度传感器L来监测驱动设备16的电动组件K的温度,可将该温度传感器L的传感器数据传递至用于控制冷却系统21的控制单元C。
图5示出驱动设备、电驱动系统和压力介质系统在下坡驱动期间的操作的极度简化视图。已结合其它视图的解释并且还在报告各实施例的说明书的开始部分介绍了在图中示出的各方面。
虽然该岩石钻机的驱动设备完全无内燃机,但是岩石钻机的载体可具有备用动力单元,其可能包括内燃机。该内燃机驱动发电机以产生电能。然而,备用动力单元不被包括在驱动设备中,并且仅旨在用在特殊情况下使用,例如当电池电量用尽或受损时使用。
在一些情况下,同样可以与其它特征无关地使用本申请中公开的特征。另一方面,有必要的话,可组合本申请中公开的特征以形成各种组合。
附图和相关描述仅旨在例证本发明的思想。本发明的细节可在权利要求书的范围内变化。
Claims (15)
1.一种岩石钻机,其包括:
可移动载体(2);
用于执行所述岩石钻机(1)的转移驱动的无内燃机驱动设备(16),所述驱动设备(16)包括至少一个电驱动马达(M)和动力传动构件(18),所述动力传动构件(18)位于所述驱动马达(M)和至少一个牵引轮(19)之间;
电动系统,所述电动系统包括至少一个储能器(B),所述转移驱动中所使用的电能能够被充到所述至少一个储能器(B)中;
至少一个压力介质系统(V),在所述压力介质系统(V)中,压力介质的压力和流动利用至少一个泵(34、54)产生,所述至少一个泵(34、54)由至少一个电动马达(33、55)驱动,所述至少一个电动马达(33、55)连接到所述电动系统;
至少一个吊臂(3a、3b),所述吊臂(3a、3b)能够相对于所述载体(2)移动,并且所述吊臂(3a、3b)设有岩石钻凿机器(6);
至少一个控制单元(C),所述至少一个控制单元(C)包括用于控制所述电动系统和所述压力介质系统的至少一种控制策略;
并且其中,所述驱动马达(M)在长期下坡驱动中用作发电机和主制动器;
并且其中,所述控制单元(C)监测所述电动系统,并且所述控制单元(C)控制下坡驱动中所产生的电能,用以对所述储能器(B)进行充电;
其特征在于:
所述控制单元(C)包括这样一种控制策略,根据所述控制策略,所述控制单元(C)响应于所述电动系统不足以消耗下坡驱动中所产生的过剩电能而开启至少一个压力介质系统(V),由此能够借助于所述压力介质系统来有意地提高电能消耗,并且
所述控制单元(C)包含这样一种控制策略,根据所述控制策略,所述控制单元(C)对所述电动系统和所述压力介质系统消耗减速中所产生的电能的能力进行考虑而控制下坡驱动的速度,
并且,所述控制单元设置用于通过对所针对的所述电动系统和所述压力介质系统的最大电消耗进行考虑,来最大化所述岩石钻机在下坡驱动中的驱动速度。
2.根据权利要求1所述的岩石钻机,其特征在于:
所述岩石钻机(1)包括钻凿液压系统(13);并且
所述控制单元(C)包含这样一种控制策略,在下坡驱动期间,所述控制单元(C)根据所述控制策略而开启所述钻凿液压系统(13),用以消耗过剩电能。
3.根据权利要求1或2所述的岩石钻机,其特征在于:
所述压力介质系统(V)设有导致压力损失的至少一个液压组件(52);并且
所述控制单元(C)被布置成用以在下坡驱动期间开启所述组件(52),由此增加所述压力介质系统(V)的能量消耗。
4.根据权利要求1或2所述的岩石钻机,其特征在于:
所述岩石钻机(1)包括至少一个压缩空气系统(50);并且
所述控制单元(C)包含这样一种控制策略,所述控制单元(C)根据所述控制策略而在下坡驱动期间开启所述压缩空气系统(50)。
5.根据权利要求1或2所述的岩石钻机,其特征在于:
所述控制单元(C)被布置成用以在下坡驱动期间控制由所述压力介质系统(V)产生的压力介质,以冷却被包括在所述电动系统中的至少一个电动组件(K)。
6.根据权利要求1或2所述的岩石钻机,其特征在于:
所述岩石钻机(1)包括至少一个液体冷却系统(21),用以冷却被包括在所述电动系统中的至少一个电动组件(K);并且
所述控制单元(C)为了下坡驱动而开启所述液体冷却系统(21)。
7.根据权利要求1或2所述的岩石钻机,其特征在于:
所述岩石钻机(1)包括至少一个液体冷却系统(21),用以冷却被包括在所述电动系统中的至少一个电动组件(K);
所述控制单元(C)为了下坡驱动而开启所述液体冷却系统(21);
并且所述压力介质系统(V)被布置成用以在下坡驱动期间冷却所述液体冷却系统(21)的冷却液体。
8.根据权利要求1或2所述的岩石钻机,其特征在于:
所述控制单元(C)被布置成用以在下坡驱动期间开启至少一个压力介质驱动致动器(7、8、10、15),以增加能量消耗,由此开启所述致动器,而不需要由所述致动器提供任何基本操作,其中所述至少一个压力介质驱动致动器(7、8、10、15)被连接到至少一个压力介质系统(V、13)。
9.根据权利要求1或2所述的岩石钻机,其特征在于:
所述电动系统包括至少一个电动制动电阻(20),用于将所述下坡驱动中所产生的过剩电能转化为热能。
10.一种用于岩石钻机的下坡驱动的方法,所述方法包括:
沿向下倾斜的驱动表面转移驱动仅设有电驱动设备的岩石钻机(1),因此属于所述岩石钻机(1)的势能作为动能的形式被释放;
主要地仅利用被包括在所述驱动设备(16)中的至少一个电驱动马达(M)来在长期下坡驱动期间对所述岩石钻机(1)的运动进行减速,所述电驱动马达被连接为用以在下坡驱动的时期段内用作发电机,由此将所述岩石钻机(1)的动能转化为电能;以及
将所述下坡驱动期间所产生的电能充到至少一个储能器(B)中,所述至少一个储能器(B)被包括在所述岩石钻机(1)的电动系统中;
其特征在于:
响应于消耗过剩能量的需要,将下坡驱动期间所产生的电能转化为压能,并且
对所针对的所述电动系统和所述压力介质系统的最大电消耗进行考虑,最大化所述岩石钻机(1)在下坡驱动中的驱动速度。
11.根据权利要求10所述的方法,其特征在于:
在下坡驱动期间增加对于压能的需求,以增加能量消耗。
12.根据权利要求11所述的方法,其特征在于:
开启钻凿液压系统(13),以增加能量消耗。
13.根据权利要求11或12所述的方法,其特征在于:
在下坡驱动期间,同时开启涉及所述岩石钻机(1)的基本操作的多个系统,而不需要这些系统的基本操作或作用。
14.根据权利要求10所述的方法,其特征在于:
将在对所述储能器(B)进行充电之后剩余的过剩电能转化为所述电动系统的电动制动电阻(20)中的热能。
15.根据权利要求14所述的方法,其特征在于:
在下坡驱动期间,允许所述电动制动电阻(20)与其额定载荷相比短暂地过载。
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