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公开(公告)号：US20140056677A1
公开(公告)日：2014-02-27
申请号：US13994821
申请日：2011-04-20
IPC分类号： E02F3/38
CPC分类号： E02F3/38
摘要： In left and right web plates (12) of a boom (11), first to fifth web materials (12A to 12E) are joined at edge portions in a front-rear direction along welding lines (13A to 13D). In an upper flange plate (14), a rear upper flange material (14A), a front upper flange material (14B), and a middle upper flange material (14C) are joined at edge portions in a front-rear direction along welding lines (15A, 15B). Ina lower flange plate (16), first to sixth lower flange materials (16A to 16F) are joined at edge portions in a front-rear direction along welding lines (17A to 17E). The welding lines (13A to 13D) of the left and right web plates (12) are disposed in positions that are different from those of the welding lines (15A, 15B) of the upper flange plate (14) and the welding lines (17A to 17E) of the lower flange plate (16) in a front-rear direction. This makes it possible to reduce the entire weight and thereby achieve reduction in weight while ensuring bending strength, torsional strength, and the like of the boom (11).
摘要翻译： 在悬臂（11）的左右腹板（12）中，第一至第五腹板材料（12A至12E）沿着焊接线（13A至13D）沿前后方向的边缘部分接合。 在上法兰板（14）中，沿着焊接线的前后方向的边缘部分接合有后上凸缘材料（14A），前上凸缘材料（14B）和中上凸缘材料（14C） （15A，15B）。 下凸缘板（16），第一至第六下凸缘材料（16A至16F）沿焊接线（17A至17E）沿前后方向的边缘部分接合。 左和右腹板（12）的焊接线（13A〜13D）配置在与上部法兰板（14）的焊接线（15A，15B）和焊接线（17A）的位置不同的位置 至17E）的前后方向。 由此，能够减轻整体重量，能够实现起重臂（11）的弯曲强度，扭转强度等的减轻。
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公开(公告)号：US20130343854A1
公开(公告)日：2013-12-26
申请号：US14003352
申请日：2012-05-16
IPC分类号： E02F3/38
CPC分类号： E02F3/38
摘要： An arm (11) of a hydraulic excavator (1) is formed as a box-shaped structural body surrounded by left and right side plates (12, 13), an upper plate (14), a lower plate (15), and a thick rear plate (16). An upper end (16A) of the thick rear plate (16) is protruded upward from an outer surface (14A3) of the upper plate (14). Upper ends (22B) of a pair of arm cylinder brackets (22) joined to an outer surface (16C) of the thick rear plate (16) are arranged higher than the outer surface (14A3) of the rear thick upper plate (14A) and lower than the upper end (16A) of the thick rear plate (16). As a result, in each of the arm cylinder brackets (22), a joint area with the thick rear plate (16) can be ensured large, and joint strength can be improved.
摘要翻译： 液压挖掘机（1）的臂（11）形成为由左右侧板（12,13），上板（14），下板（15）和 厚的后板（16）。 厚后板（16）的上端（16A）从上板（14）的外表面（14A3）向上突出。 与厚后板（16）的外表面（16C）接合的一对臂筒支架（22）的上端（22B）布置成比后厚的上板（14A）的外表面（14A3）高， 并且比厚后板（16）的上端（16A）低。 结果，在各臂支架（22）中，可以确保与厚后板（16）的接合区域大，能够提高接合强度。
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3.发明授权公开(公告)号：US09315966B2
公开(公告)日：2016-04-19
申请号：US14003352
申请日：2012-05-16
IPC分类号： E02F3/38
CPC分类号： E02F3/38
摘要： An arm of a hydraulic excavator is formed as a box-shaped structural body surrounded by left and right side plates, an upper plate, a lower plate, and a thick rear plate. An upper end of the thick rear plate is protruded upward from an outer surface of the upper plate. Upper ends of a pair of arm cylinder brackets joined to an outer surface of the thick rear plate are arranged higher than the outer surface of the rear thick upper plate and lower than the upper end of the thick rear plate. As a result, in each of the arm cylinder brackets, a joint area with the thick rear plate can be ensured large, and joint strength can be improved.
摘要翻译： 液压挖掘机的臂形成为由左右侧板，上板，下板和厚后板包围的箱形结构体。 厚后板的上端从上板的外表面向上突出。 连接到厚后板的外表面的一对臂筒支架的上端布置成比后厚板的外表面高且比厚后板的上端低。 结果，在每个臂筒支架中，可以确保具有较厚后板的接合区域，并且可以提高接合强度。
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公开(公告)号：US09255378B2
公开(公告)日：2016-02-09
申请号：US14003341
申请日：2012-05-16
IPC分类号： E02F3/38
CPC分类号： E02F3/38
摘要： An arm of a hydraulic excavator is formed as a box-shaped structural body surrounded by left and right side plates, an upper plate joined to each of the upper end sides of each side plate, a lower plate joined to each of the lower end sides of each side plate, and a thick rear plate joined to each of the rear end sides of each side plate and the upper plate. The side plates are formed by joining a rear thick side plate and a front thin side plate. The upper plate is formed by joining two members, that is, a rear thick upper plate and a front thin upper plate, and the lower plate is formed by joining two members, that is, a rear thick lower plate and a front thin lower plate.
摘要翻译： 液压挖掘机的臂形成为由左右侧板围绕的箱状结构体，与各侧板的上端侧连接的上板，与各下端侧连接的下板 并且连接到每个侧板和上板的每个后端侧的厚的后板。 侧板通过连接后厚侧板和前薄侧板而形成。 上板通过连接两个构件，即后厚的上板和前薄的上板形成，并且下板通过将两个构件，即后厚的下板和前薄的下板 。
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公开(公告)号：US20140010624A1
公开(公告)日：2014-01-09
申请号：US14003341
申请日：2012-05-16
IPC分类号： E02F3/38
CPC分类号： E02F3/38
摘要： An arm of a hydraulic excavator is formed as a box-shaped structural body surrounded by left and right side plates, an upper plate joined to each of the upper end sides of each side plate, a lower plate joined to each of the lower end sides of each side plate, and a thick rear plate joined to each of the rear end sides of each side plate and the upper plate. The side plates are formed by joining a rear thick side plate and a front thin side plate. The upper plate is formed by joining two members, that is, a rear thick upper plate and a front thin upper plate, and the lower plate is formed by joining two members, that is, a rear thick lower plate and a front thin lower plate.
摘要翻译： 液压挖掘机的臂形成为由左右侧板围绕的箱状结构体，与各侧板的上端侧连接的上板，与各下端侧连接的下板 并且连接到每个侧板和上板的每个后端侧的厚的后板。 侧板通过连接后厚侧板和前薄侧板而形成。 上板通过连接两个构件，即后厚的上板和前薄的上板形成，并且下板通过将两个构件，即后厚的下板和前薄的下板 。
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6.发明申请Travel Drive System for Work Vehicle, Work Vehicle, and Travel Drive Method 有权工作车辆，工作车辆和行驶驱动方式的行驶驱动系统公开(公告)号：US20100032219A1
公开(公告)日：2010-02-11
申请号：US12517435
申请日：2007-11-28
CPC分类号： B60W20/10 , B60K6/46 , B60K6/52 , B60K17/04 , B60K17/356 , B60L1/003 , B60L11/123 , B60L15/20 , B60L15/2009 , B60L2200/40 , B60L2210/40 , B60L2240/12 , B60L2240/421 , B60L2240/423 , B60L2250/26 , B60L2260/28 , B60W10/08 , B60W10/103 , B60W20/00 , B60W2300/17 , B60W2510/085 , B60W2520/10 , B60W2540/10 , B60W2540/12 , B60Y2200/415 , F16H61/475 , Y02T10/6217 , Y02T10/6265 , Y02T10/645 , Y02T10/7077 , Y02T10/7241 , Y02T10/7275
摘要： A travel drive system for a work vehicle includes: an HST drive device comprising a hydraulic pump driven by a prime mover and a hydraulic motor connected to the hydraulic pump by a closed circuit; an electric motor driven by using electric power generated by drive of the prime mover; a first drive wheel driven by the HST drive device; a second drive wheel driven by the electric motor; a vehicle speed detector that detects a vehicle speed; and a control unit that distributes output of the prime mover to the HST drive device and to the electric motor such that, as the vehicle speed detected by the vehicle speed detector increases, a proportion of a first power distributed to the HST drive device decreases and a proportion of a second power distributed to the electric motor increases.
摘要翻译： 一种工作车辆的行驶驱动系统包括：HST驱动装置，包括由原动机驱动的液压泵和通过闭合回路连接到液压泵的液压马达; 通过使用由原动机的驱动产生的电力驱动的电动马达; 由HST驱动装置驱动的第一驱动轮; 由电动机驱动的第二驱动轮; 检测车速的车速检测器; 以及控制单元，其将原动机的输出分配到HST驱动装置和电动机，使得随着车速检测器检测到的车速增加，分配给HST驱动装置的第一功率的比例减小， 分配给电动马达的第二功率的比例增加。
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公开(公告)号：US06922925B2
公开(公告)日：2005-08-02
申请号：US10257682
申请日：2001-11-29
申请人： Osamu Watanabe , Seiichiro Takeshita , Takaharu Nishimura , Kazuyoshi Yamada , Makoto Sugaya , Makoto Motozu , Naohiro Ishikawa , Shougo Kimura
发明人： Osamu Watanabe , Seiichiro Takeshita , Takaharu Nishimura , Kazuyoshi Yamada , Makoto Sugaya , Makoto Motozu , Naohiro Ishikawa , Shougo Kimura
CPC分类号： E02F9/0866 , E02F3/325 , E02F3/964 , E02F9/00
摘要： A construction machine of the present invention is provided, in a compartment formed by a cover, with an engine, a centrifugal fan, and a heat exchanger for exchanging heat between cooling air blown by the centrifugal fan and a specified medium, wherein the centrifugal fan and the heat exchanger are arranged further upstream than the engine with respect to flow of cooling air, so that cooling air sucked in by the centrifugal fan is led to the engine after passing through the heat exchanger.
摘要翻译： 本发明的建筑机械在由盖构成的隔室中设置有发动机，离心风扇和热交换器，用于在由离心风扇吹送的冷却空气与特定介质之间进行热交换，其中离心式风扇 并且热交换器相对于冷却空气的流动被设置在发动机的上游的位置，使得被离心风扇吸入的冷却空气通过热交换器后被引导到发动机。
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公开(公告)号：US07712565B2
公开(公告)日：2010-05-11
申请号：US11632776
申请日：2006-03-06
申请人： Tsutomu Udagawa , Eiji Egawa , Akira Nakayama , Kazuo Takiguchi , Tsukasa Toyooka , Makoto Sugaya , Kensuke Sato
发明人： Tsutomu Udagawa , Eiji Egawa , Akira Nakayama , Kazuo Takiguchi , Tsukasa Toyooka , Makoto Sugaya , Kensuke Sato
IPC分类号： B60K17/356
CPC分类号： F16H61/435 , B60K17/10 , B60K17/356 , B60K23/08 , F16H61/425 , F16H61/439 , F16H61/44 , F16H61/444
摘要： A hydro-static transmission travel system for a working machine enables the working machine to travel over a range from low speed to high speed with a simplified circuit arrangement. By referring to a machine traveling speed (vehicle speed) based on a detected signal from a rotation sensor, a controller computes respective target tilting amounts of hydraulic motors 10, 20 and controls the tilting amount for the hydraulic motors and a clutch. Depending on whether the traveling speed exceeds a setting speed as a reference boundary, the controller selectively switches over a drive mode between low-speed four-wheel drive, in which travel units 12, 22 are both driven, and high-speed two-wheel drive, in which the front-wheel side hydraulic motor 10 is controlled to zero displacement and only the rear-wheel side travel unit 22 is driven.
摘要翻译： 一种用于工作机械的静电传动传动系统使得工作机器能够以简化的电路布置在低速到高速的范围内行进。 通过参照基于来自旋转传感器的检测信号的机器行进速度（车速），控制器计算液压马达10,20的各目标倾斜量，并控制液压马达和离合器的倾斜量。 根据行驶速度是否超过作为参考边界的设定速度，控制器选择性地切换在驱动行驶单元12,22的低速四轮驱动与高速二轮之间的驱动模式 驱动，其中前轮侧液压马达10被控制到零位移，并且仅后轮侧行驶单元22被驱动。
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公开(公告)号：US20090127928A1
公开(公告)日：2009-05-21
申请号：US12092370
申请日：2006-11-01
申请人： Tsutomu Udagawa , Eiji Egawa , Tsukasa Toyooka , Makoto Sugaya , Hideo Sorata , Tsuyoshi Nakamura , Akira Nakayama , Kazuo Takiguchi , Kensuke Satou
发明人： Tsutomu Udagawa , Eiji Egawa , Tsukasa Toyooka , Makoto Sugaya , Hideo Sorata , Tsuyoshi Nakamura , Akira Nakayama , Kazuo Takiguchi , Kensuke Satou
IPC分类号： F16H61/42
CPC分类号： F16H61/42 , B60K7/0015 , B60K17/043 , B60K17/10 , B60K17/356 , B60K2007/0092 , B60W2520/263 , B66F9/07572 , F16H61/4035 , F16H61/452 , Y10T477/619 , Y10T477/631
摘要： A travel control device for a work vehicle includes: a hydraulic pump; a plurality of hydraulic motors connected to the hydraulic pump in parallel through a closed-circuit connection, that drive different wheels with pressure oil delivered from the hydraulic pump; a slip detection device that detects a slip occurring at each of the wheels; and a flow control device that reduces, upon detection of a slip occurring at any of the wheels by the slip detection device, a quantity of pressure oil supplied to a hydraulic motor for driving the wheel at which the slip has been detected, among the plurality of hydraulic motors.
摘要翻译： 一种工作车辆的行驶控制装置，包括：液压泵; 通过闭路连接并联连接到液压泵的多个液压马达，用从液压泵输送的压力油驱动不同的车轮; 滑移检测装置，其检测在每个车轮处发生的滑动; 以及流量控制装置，其在检测到由所述滑移检测装置在任何车轮上发生的滑动时，减少供给到用于驱动已经检测到所述滑移的车轮的液压马达的压力油的数量 的液压马达。
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公开(公告)号：US20050067212A1
公开(公告)日：2005-03-31
申请号：US10500656
申请日：2003-02-26
CPC分类号： B62D7/1572 , B62D7/1509 , B66F9/0655 , B66F9/07568
摘要： One of the mode lamps 38a, 38b and 38c of the mode indicator 38 corresponding to the current steering mode is turned on yellow and the other mode lamps are turned on green or turned off, thereby indicating whether front wheels 1, 1 and rear wheels 2, 2 are at neutral. A controller 39 does not operate a mode changing valve 24 even with an instruction outputted from a mode change switch 35 when the front and rear wheels are not at neutral, and operates, in response to an instruction outputted from the mode change switch 35, the mode changing valve 24 to establish a steering mode corresponding to the instruction when the front and rear wheels are at neutral. Also, the mode indicator 38 is controlled to always indicate, as the current steering mode, one corresponding to the steering mode actually established by the mode changing valve 24. With those features, in a working vehicle in which the mode of steering front and rear wheels can be changed over between two-wheel steering and four-wheel steering, a steering system having superior operability and high reliability can be provided.
摘要翻译： 对应于当前转向模式的模式指示器38的模式灯38a，38b和38c中的一个被打开为黄色，其他模式灯被打开为绿色或关闭，从而指示前轮1,1和后轮2 ，2是中立的。 即使当前轮和后轮不处于空档时，即使从模式切换开关35输出的指令，控制器39也不操作模式切换阀24，并且响应于从模式切换开关35输出的指令而操作模式切换阀24， 模式切换阀24，以在前轮和后轮处于空档时建立与指令对应的转向模式。 此外，模式指示器38被控制为总是指示与当前转向模式相对应的模式切换阀24实际建立的转向模式。通过这些特征，在其中转向前后方向 可以在两轮转向和四轮转向之间切换车轮，可以提供具有优异的可操作性和高可靠性的转向系统。
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