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    • 1. 发明授权
    • Hydraulic excavator
    • 液压挖掘机
    • US07174968B2
    • 2007-02-13
    • US10852192
    • 2004-05-25
    • Takayuki OkunishiShinya NakataHiroshi ShimokakiuchiHiroshi MoritaShintaro SakitaniYoshiyasu Umezu
    • Takayuki OkunishiShinya NakataHiroshi ShimokakiuchiHiroshi MoritaShintaro SakitaniYoshiyasu Umezu
    • E02F3/76
    • E02F3/964E02F9/085
    • The present invention provides a hydraulic excavator provided with a dozer device comprising an arm having a rear end connected to a fulcrum portion provided on a lower frame of a lower traveling body, a dozer blade provided at an extreme end of the arm, and a dozer cylinder for swinging the arm in vertical direction, characterized in that the dozer cylinder and the arm are arranged in a state of forming two sides of a triangle as viewed from the side, the arm swings vertically so that the dozer cylinder does not interfere with a bottom of an upper rotating body rotatably mounted on the lower traveling body, and an approach angle when the dozer blade vertically moved by the arm is placed in the highest position is set to 35 degrees or more, thereby capable of securing travelability equal to an excavator without a dozer device.
    • 本发明提供一种具有推土装置的液压挖掘机,该推土机装置具有后端,该后臂与设置在下行进体的下框架上的支点部连接,设置在该臂的末端的推土铲,以及推土机 气缸,用于在垂直方向上摆动臂,其特征在于,推进器气缸和臂布置成从侧面观察形成三角形的两侧的状态,臂垂直摆动,使得推土机气缸不干扰 可旋转地安装在下行进体上的上旋转体的底部,并且当通过臂垂直移动的推土铲叶片位于最高位置时的接近角度被设定为35度以上,由此能够确保与挖掘机等同的行驶性能 没有推土机装置。
    • 7. 发明授权
    • Excavator
    • 挖掘机
    • US07048072B2
    • 2006-05-23
    • US11103548
    • 2005-04-12
    • Takayuki OkunishiShintaro Sakitani
    • Takayuki OkunishiShintaro Sakitani
    • E02F3/76E02F3/80E01H5/06
    • E02F3/7609
    • In an excavator, a blade surface for performing an earth removal operation while a blade is set in contact with the ground satisfies the following conditions: A) upward pushing force components Fu that push dirt upward along the blade surface are generated; B) an upper part of the blade surface has a release surface portion in which a forward-upward release force that rolls the dirt pushed upward by Fu forward is generated; C) when downward pressing force components Fd are generated in response to the generated release force, a total downward pressing force ΣFd> a total upward pushing force ΣFu; and D) if each Fu is given a positive value and if each Fd and a reduced amount of each Fu caused when the dirt hits the release surface portion are given negative values, a value of force at an endmost section of the release surface portion is positive.
    • 在挖掘机中,用于在叶片与地面接触的同时执行排土操作的叶片表面满足以下条件:A)产生沿着叶片表面向上推动污物的向上推力分量Fu; B)叶片表面的上部具有释放面部分,在该释放表面部分中产生向上推动释放力,该向前释放力滚动由Fu向前推动的污物; C)当响应于所产生的释放力而产生向下按压力分量Fd时,总向下推压力ΣFd>总向上推力SigmaFu; 和D)如果每个Fu被赋予正值,并且如果在污物撞击释放表面部分时引起的每个Fd和减少的量被赋予负值,则释放表面部分的最末端处的力的值为 正。
    • 8. 发明申请
    • Excavator
    • 挖掘机
    • US20050230129A1
    • 2005-10-20
    • US11103548
    • 2005-04-12
    • Takayuki OkunishiShintaro Sakitani
    • Takayuki OkunishiShintaro Sakitani
    • E02F3/76E02F3/815
    • E02F3/7609
    • In an excavator, a blade surface for performing an earth removal operation while a blade is set in contact with the ground satisfies the following conditions: A) upward pushing force components Fu that push dirt upward along the blade surface are generated; B) an upper part of the blade surface has a release surface portion in which a forward-upward release force that rolls the dirt pushed upward by Fu forward is generated; C) when downward pressing force components Fd are generated in response to the generated release force, a total downward pressing force ΣFd>a total upward pushing force ΣFu; and D) if each Fu is given a positive value and if each Fd and a reduced amount of each Fu caused when the dirt hits the release surface portion are given negative values, a value of force at an endmost section of the release surface portion is positive.
    • 在挖掘机中,用于在叶片与地面接触的同时执行排土操作的叶片表面满足以下条件:A)产生沿着叶片表面向上推动污物的向上推力分量Fu; B)叶片表面的上部具有释放面部分,在该释放表面部分中产生向上推动释放力,该向前释放力滚动由Fu向前推动的污物; C)当响应于所产生的释放力而产生向下按压力分量Fd时,总向下推压力ΣFd>总向上推力SigmaFu; 和D)如果每个Fu被赋予正值,并且如果在污物撞击释放表面部分时引起的每个Fd和减少的量被赋予负值,则释放表面部分的最末端处的力的值为 正。