CN104553831A - 采矿车辆和用于采矿车辆的能量供给的方法 - Google Patents
采矿车辆和用于采矿车辆的能量供给的方法 Download PDFInfo
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- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/025—Rock drills, i.e. jumbo drills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/51—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells characterised by AC-motors
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- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
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- B60L9/16—Electric propulsion with power supply external to the vehicle using ac induction motors
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/022—Control of the drilling operation; Hydraulic or pneumatic means for activation or operation
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/04—Distributing means for power supply in mines
- E21F17/06—Distributing electric power; Cable networks; Conduits for cables
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
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- B60L2220/00—Electrical machine types; Structures or applications thereof
- B60L2220/50—Structural details of electrical machines
- B60L2220/54—Windings for different functions
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Abstract
本发明涉及采矿车辆和用于采矿车辆的能量供给的方法。采矿车辆具有:车架;用于移动车架的驱动装备;和至少一个采矿作业装置。采矿车辆进一步具有:电动马达,用于对采矿作业装置供给动力;连接器,用于将电力从矿场的电网供给到电动马达;和能量源。电动马达至少包括一次定子绕组和二次定子绕组,使得一次定子绕组和二次定子绕组彼此电隔离。当采矿车辆经由一次定子绕组连接到矿场的电网时,电动马达被布置成:至少在一段时间内对至少一个采矿作业装置供给动力,并且至少在一段时间内经由二次定子绕组供给动力用于对能量源充电。
Description
技术领域
本发明涉及采矿车辆和用于采矿车辆的能量供给的方法。
背景技术
在矿场中,根据采矿作业装置的作业周期,在预先计划的作业地点,岩钻车和其它采矿车辆被用于执行作业。在已经执行根据作业周期的必须的任务例如钻孔钻凿之后,采矿车辆被移动到下一个作业地点,并且开始一个新的作业周期。特别地,在地下矿场中,采矿车辆通常被使用,其中用于根据作业周期的操作的驱动能量是来自矿场的电网的电。相比之下,在作业地点之间的转移驱动是通过使用燃烧引擎典型地柴油引擎获得的驱动能量而实现,由此,电缆等不限制转移驱动。然而,来自燃烧引擎的废气和噪音在矿场中导致问题。另外,燃烧引擎需要在车辆的车架上有较大的空间且必需定期维护。燃烧引擎也对矿场的用火安全具有不利影响,这是因为燃烧引擎表面温度很高,同时,还必须在车辆和矿场中存储和搬运易燃燃料。
在矿场中也使用被持续地连接到矿场的电网的采矿车辆。于是采矿车辆具有电动马达,并且典型地使用具有恒定的转速的电动马达。然后,根据作业阶段所需的动力可用液压部件调节,并且电动马达从矿场的电网获得由作业阶段的能量消耗所限定的电流及负载动力。进一步地,于是,采矿车辆的移动受到电网的约束,或者至少受到与采矿车辆连接的且盘绕在采矿车辆中或盘绕在固定电网处的电缆的约束。
例如,文献US 7 053 568的提出了一种电池驱动的采矿车辆。该文献详细描述了电池和作为驱动传递的部件的交流电马达的使用和定位。
文献US 5 293 927提出了一种从架空母线***接收其电供给的采矿车辆。该采矿车辆也具有开关,该开关用于选择是从电网还是从采矿车辆中的辅助的能量源来获取采矿车使用的能量,该辅助的能量源例如电池或柴油马达。当能量来自辅助能量源时,在没有将采矿车辆连接到架空电网的情况下,采矿车辆能够被移动较短的距离。
申请WO 2010/061058公开了一种采矿车辆,该采矿车辆在作业地点被连接到外部电网。在由采掘计划定义的作业周期期间,当车辆在作业地点时,车辆的能量储存被充电。在该作业周期完成之后,从能量储存中取得的电被用于转移驱动。
发明内容
本发明的目的是提供新型的采矿车辆及用于该采矿车辆的能量供给的方法。
该发明的特征在于独立权利要求的特征。该发明的实施例呈现在从属权利要求中。
在提出的解决方案中,采矿车辆包括车架、用于移动车架的驱动装备以及至少一个采矿作业装置。采矿车辆进一步包括:电动马达,该电动马达用于对采矿作业装置供给动力;连接器,该连接器用于将电力从矿场的电网供给到电动马达;以及能量源。电动马达至少包括一次定子绕组和二次定子绕组,使得一次定子绕组和二次定子绕组彼此电隔离。当所述采矿车辆经由所述一次定子绕组被连接到所述矿场的所述电网时,所述电动马达被布置成:至少在一段时间内对所述至少一个采矿作业装置供给动力,并且至少在一段时间内经由所述二次定子绕组供给动力用于对所述能量源充电。在全力钻凿期间,优选地,能量源不充电,因此对能量源充电不提高采矿车辆所需的来自矿场的电网的最大动力。因此,一次定子绕组连接到矿场的电网,并且经由一次定子绕组供给的电能旋转马达的转子,并且由此旋转马达的轴。因此,一次定子绕组将电网的电力转变成马达的轴动力。二次定子绕组被用于对能量源充电。在充电期间,这也在矿场的电网和能量源之间提供电隔离,由此,避免了隔离变压器或任何其它用于执行电隔离的电装置。因此,能够使在采矿车辆中使用的部件的数目最小化。
根据实施例,在全力钻凿期间,从矿场的电网和采矿车辆的能量源经由电动马达将能量供给到采矿作业装置。
采矿车辆可包括下列采矿作业装置中的一个或更多个:岩钻机、筛选机、喷浆装置、定标装置、注入装置(injection device)、炮眼装料器(blasthole charger)、装载机、翻斗器、测量装置或者用于小型挖掘的钻凿、密封和推进进给装备。岩钻机可以是面钻凿装置或者在生产孔钻凿中使用的装置,即以扇形钻凿钻孔的长孔钻凿装置。采矿作业装置是用于处理未分离的岩石的致动器,并且根据给定的作业周期,采矿作业装置执行几个连贯的作业。典型地,在一个作业场所处,以采矿作业装置执行几个类似的操作。这些操作可以被定义在挖掘计划例如钻凿计划、装填计划或者对应的采矿计划中。采矿作业装置通常被布置在悬臂上,在作业周期期间通过该悬臂移动该采矿作业装置。另一方面,采矿作业装置可被布置在采矿车辆中的对应的支撑件或支撑结构上,从而在采矿作业装置的作业周期期间支撑该装置。
附图说明
该发明的一些实施例将通过附图更详细说明,其中:
图1是采矿车辆的示意性侧视图,该采矿车辆在该情况下是岩钻车;并且
图2是采矿车辆的能量供给布置的图解。
在附图中,为了清楚的目的,简化示出该发明的一些实施例。在附图中类似的部件都标有相同的附图标记。
具体实施方式
图1示出岩钻车,该岩钻车是装备有一个或更多个采矿作业装置2的采矿车辆1的一个示例。岩钻车包括车架3,该车架3可借助于驱动装备4而移动。驱动装备4包括一个或更多个驱动马达5和一个或更多个动力传递装置6,所述一个或更多个动力传递装置6用于将驱动动力传递到一个或更多个车轮7。驱动动力传递可包括机械齿轮***和机械动力传递构件,或者,替代地,驱动动力传递可以是液压的或者电动的。在车架3上可布置一个或更多个悬臂8,并且悬臂可装备有采矿作业装置2。在图1中所示的实施例中,第一悬臂8a是钻凿悬臂,在第一悬臂8a的最外端存在包括进给梁10的岩钻单元9,借助于进给装置12能够使岩钻机11沿着进给梁10移动。岩钻机11可包括冲击装置13和旋转装置15,该冲击装置13用于在工具上产生冲击脉冲,该旋转装置15用于使工具14绕工具14的纵向轴线旋转。在岩钻车中可存在几个这样的钻凿悬臂8a。通过示例的方式,第二悬臂8b被示出为包括锚固装置16,借助于该锚固装置16能够将锚杆布置在预钻的钻孔中,从而支撑开凿的岩洞。在图1所示的实施例中,第三悬臂8c装备有用于测量钻孔的测量装置17。其它替代的采矿作业装置2包括用于将密封材料供给到岩石中的注入装置、喷浆处理装置、定标装备、在小型挖掘中使用的装置和用于进给***的装置。
采矿车辆1根据矿场18的采掘计划或对应的预拟的计划移动到作业地点19,在作业地点19处采矿作业装置2根据作业周期执行作业,这耗费了相对长的时间。例如,岩钻机的作业周期可包括在作业地点19处钻凿在钻凿计划中定义的几个钻孔。进一步地,每一个钻孔的钻凿典型地由几个作业阶段组成,例如打眼、实际钻凿、改变接杆和钻头及在钻凿后拆卸接杆装备。在作业地点19处执行钻凿作业周期可能耗费几个小时,有时甚至耗费整个作业班次。对应地,装料、锚固、测量和注入通常都是相当耗时的作业。通常,采矿作业装置2的使用涉及钻凿钻孔或者进一步处理已完成的孔。于是,这意味着处理未分离的岩石。
图1进一步示出矿场18具有电网20,该电网20可以是固定地构建,或者电网20可以由能够变更的网络组成。典型地,电网20是三相交流网。当采矿车辆1在作业地点19处的时候,它的采矿作业装置2、液压***和任何必要的辅助***主要是借助于从外部电网获得的电能来驱动。采矿车辆1可通过一个或更多个连接电缆21被连接到电网20。连接电缆21可被布置在绕线架22上,并且连接电缆21可被装备有适当的连接器23,该连接器23可被连接到电网20的供给终端上。替代地,绕线架22和电缆21可被布置在矿场18中,并且连接电缆21被连接到采矿车辆1。采矿车辆1包括一个电动马达26,该电动马达26经由连接装置24连接到电网。在采矿车辆1中,液压由液压泵27产生。液压泵由电动马达旋转。
采矿车辆1装备有连接装置24,将从电网20供给的电通过该连接装置24连接到采矿车辆1的不同装置。采矿车辆1还装备有至少一个能量源25。能量源25可以是例如电池、超级电容器或者它们的组合或者可充电的任何其它适当能量源。
图2非常示意性地示出采矿车辆的一些部分。
电动马达26被连接到电网20。电动马达26旋转液压泵27。
电动马达26包括一次定子绕组28和二次定子绕组29。一次定子绕组28和二次定子绕组29彼此电隔离。
电动马达26还包括轴30。电动马达26被连接到矿场的电网20,使得一次定子绕组28被连接到矿场的电网20。当电能从矿场的电网20供给到电动马达26时,电动马达的转子被旋转。轴30被连接到电动马达26的转子,并且由此,来自于矿场的电网20的电能旋转轴30。
轴30被连接成旋转液压泵27。当液压泵27旋转时,液压泵27对采矿车辆的液压***产生液压。采矿车辆的液压***由附图标记31所标示。
例如,液压***31中的液压被用于将动力供给到采矿作业装置2。例如,液压也可以用于驱动驱动装备的液压***,诸如用于转向和制动。
能量源25借助于逆变器32被连接到电动马达26的二次定子绕组29。能量源25也被连接到驱动马达5。能量源25可经由相同的逆变器32连接到驱动马达5,或者可以在能量源25和驱动马达5之间存在单独的逆变器。
因此,例如,来自于能量源25的能量可被用于采矿车辆1的转移驱动。
例如,在全力钻凿期间,也能从能量源25将能量供给到采矿作业装置2,由此达到推进模式。因此,在推进模式中,从矿场的电网20和能量源25将能量供给到采矿作业装置。因此,在推进模式中,通过同时从能量源25将能量供给到采矿作业装置,可减少电动马达26对于矿场的电网20的负载。
也能仅从能量源25将能量供给到采矿作业装置2。因此,例如,即使矿场的电网20不能够供给能量,也能够实现所谓的低动力钻凿。
通过从矿场的电网20经由一次定子绕组28和二次定子绕组29供给能量可以对能量源25充电。矿场的电网20和能量源25需要彼此电隔离。因为一次定子绕组28和二次定子绕组29彼此电隔离,所以,在充电期间,矿场的电网和能量源25也彼此电隔离。
优选地,当在作业周期期间采矿作业装置2的动力需求低时,执行对能量源25的充电。在充电模式下,能够将电能经由一次定子绕组28仅供给到二次定子绕组29,或者替代地,经由一次定子绕组28供给的电力可以部分地用于旋转轴30并且部分地经由二次定子绕组29用于供给充电。
***的控制可通过控制逆变器32实现,由此,从0%到100%的无级控制可以被实现。
图2也示意性地示出控制单元33。控制单元33被布置用于控制装置以执行上述操作。
单独的驱动马达5不是必须需要的,但是,电动马达26可以产生必要的驱动动力。因此,在该情况下,动力传递装置6被连接到电动马达26的轴30。
采矿车辆1可包括一个或更多个电动马达26。采矿车辆1也可包括一个或更多个液压泵27。电动马达26可旋转一个或更多个液压泵27,或者每个液压泵27均可包括它自身的电动马达。
上述的解决方案在没有液压泵27的情况下也可以被实现。因此,在这样的情况下,替代液压泵27,例如,电动马达26可被连接到水泵或者压缩机。应说明的是,在该说明书中,矿场指的是地下矿场或者露天开采的矿场。进一步地,该方法和采矿车辆可被用在紧缩的(contract)作业地点,例如当挖掘不同的岩石设施时。因此,紧缩的作业地点也可认为是一种矿场。在紧缩的作业地点处,外部电网可以是能够变更的,例如,在能够移动的支架上的机组(aggregate)。
在一些情况下,该说明书中描述的特征可以不考虑其它特征而本身使用。另一方面,根据需要,本说明书中描述的特征也可被组合以提供各种组合。
附图及相关的描述仅旨在阐明该发明的构思。该发明可在权利要求的范围内在它的细节方面变化。
对该领域的技术人员将明显的是,随着技术发展,能够以各种方式实现该发明的构想。该发明及其实施例不限于上述示例,而可在权利要求的范围内变化。
Claims (10)
1.一种采矿车辆,具有:
车架;
驱动装备,所述驱动装备用于移动所述车架;
至少一个采矿作业装置;
至少一个电动马达,所述至少一个电动马达用于对所述采矿作业装置供给动力;
连接器,所述连接器用于将电力从矿场的电网供给到所述电动马达;和
能量源,
其中所述电动马达至少包括一次定子绕组和二次定子绕组,使得所述一次定子绕组和所述二次定子绕组彼此电隔离,
并且当所述采矿车辆经由所述一次定子绕组被连接到所述矿场的所述电网时,所述电动马达被布置成:至少在一段时间内对所述至少一个采矿作业装置供给动力,并且至少在一段时间内经由所述二次定子绕组供给动力用于对所述能量源充电,其中所述矿场的电网和所述能量源彼此电隔离。
2.根据权利要求1所述的采矿车辆,其中所述电动马达包括转子和轴,所述轴被连接到所述转子,其中经由所述一次定子绕组所供给的电能被布置成至少在一段时间内用于旋转所述转子从而旋转所述轴。
3.根据权利要求2所述的采矿车辆,包括液压泵,所述液压泵用于对所述采矿作业装置供给液压,其中所述轴被布置成旋转所述液压泵。
4.根据前述权利要求中的任一项所述的采矿车辆,包括控制单元,所述控制单元被布置成控制对所述能量源的充电,当不对所述采矿作业装置供给最大动力时,执行对所述能量源的充电。
5.根据前述权利要求中的任一项所述的采矿车辆,包括控制单元,所述控制单元被布置成控制对所述能量源的充电,与对所述采矿作业装置供给动力同时地执行对所述能量源的充电。
6.根据前述权利要求中的任一项所述的采矿车辆,包括控制单元,所述控制单元被布置成控制至少在一段时间内同时从所述矿场的所述电网和所述采矿车辆的所述能量源对所述采矿作业装置供给能量。
7.一种用于采矿车辆的能量供给的方法,所述方法包括对所述采矿车辆的能量源充电,并且所述采矿车辆包括:车架;驱动装备,所述驱动装备用于移动所述车架;至少一个采矿作业装置;至少一个电动马达,所述至少一个电动马达用于对所述采矿作业装置供给动力;连接器,所述连接器用于将电力从矿场的电网供给到所述电动马达;和所述能量源,其中所述电动马达至少包括一次定子绕组和二次定子绕组,使得所述一次定子绕组和所述二次定子绕组彼此电隔离,从而所述矿场的所述电网和所述能量源彼此电隔离,并且其中当所述采矿车辆经由所述一次定子绕组被连接到所述矿场的所述电网时,所述电动马达至少在一段时间内对所述至少一个采矿作业装置供给动力,并且至少在一段时间内经由所述二次定子绕组供给动力,从而对所述能量源充电。
8.根据权利要求7所述的方法,其中当不对所述采矿作业装置供给最大动力时,执行对所述能量源的充电。
9.根据权利要求7或8所述的方法,其中与对所述采矿作业装置供给动力同时地执行对所述能量源的充电。
10.根据权利要求7至9中的任一项所述的方法,其中,至少在一段时间内,同时从所述矿场的所述电网和所述采矿车辆的所述能量源对所述采矿作业装置供给能量。
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CN105064996A (zh) * | 2015-07-10 | 2015-11-18 | 中煤科工集团沈阳设计研究院有限公司 | 露天煤矿剥离废石采用双驱汽车运输的工艺 |
CN109311411A (zh) * | 2016-06-17 | 2019-02-05 | 山特维克矿山工程机械有限公司 | 地下采矿车辆中的充电通知装置 |
CN107599893A (zh) * | 2016-07-11 | 2018-01-19 | 神华集团有限责任公司 | 电动轮自卸矿车及其动力*** |
CN113710084A (zh) * | 2019-06-24 | 2021-11-26 | 株式会社久保田 | 电动作业车辆 |
US11925131B2 (en) | 2019-06-24 | 2024-03-12 | Kubota Corporation | Electric work vehicle |
Also Published As
Publication number | Publication date |
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CA2864307C (en) | 2016-08-09 |
EP2857253A1 (en) | 2015-04-08 |
CA2864307A1 (en) | 2015-04-02 |
JP5964911B2 (ja) | 2016-08-03 |
CN104553831B (zh) | 2016-08-17 |
AU2014233590A1 (en) | 2015-04-16 |
ZA201407135B (en) | 2015-11-25 |
JP2015110890A (ja) | 2015-06-18 |
AU2014233590B2 (en) | 2016-02-18 |
US20150090499A1 (en) | 2015-04-02 |
US9518427B2 (en) | 2016-12-13 |
EP2857253B1 (en) | 2016-05-11 |
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