DEVICE FOR ROCK- AND CONCRETE MACHINING
    81.
    发明公开
    DEVICE FOR ROCK- AND CONCRETE MACHINING 有权
    Ventilloser液压机Schlagmechanismus

    公开(公告)号:EP2694251A1

    公开(公告)日:2014-02-12

    申请号:EP12767471.1

    申请日:2012-04-03

    发明人: PETTERSSON, Maria

    摘要: The invention concerns a hydraulic striking tool for application in rock and/or concrete cutting equipment containing a machine housing (100;200) with a cylinder (115;215) with a moveably mounted piston (145;245) which during operation performs a repetitive forward and backward movement relative to the machine housing (100;200) and directly or indirectly strike a rock and/or concrete cutting tool (155;255), and where the piston (145;245) includes a driving part (165;265) which separates a first (120;220) and a second (105;221 ) driving chamber formed between the piston (145;245) and the machine housing (100;200) and where these driving chambers are arranged to include a pressurised working fluid during operation. The total volume V of the first and second driving chambers is inversely proportional dimensioned to the square of a for the striking tool recommended maximal pressure p, as well as proportional, by a proportionality constant k within the interval 5.3-21.0, to the product of the pistons energy E during the strike against the tool and compression module β of the working fluid.

    摘要翻译: 本发明涉及一种用于岩石和/或混凝土切割设备的液压打击工具,其包含具有带有可移动安装的活塞(145; 245)的气缸(115; 215)的机器壳体(100; 200),所述活塞在操作期间执行重复 相对于机器壳体(100; 200)的向前和向后运动并且直接或间接地撞击岩石和/或混凝土切割工具(155; 255),并且其中活塞(145; 245)包括驱动部分(165; 265) ),其分离形成在活塞(145; 245)和机器壳体(100; 200)之间的第一(120; 220)和第二(105; 221)驱动室,并且其中这些驱动室被布置成包括加压工作 流体在运行。 第一和第二驱动室的总体积V与用于打击工具推荐最大压力p的a的平方成正比,并且与5.3-21.0的间隔内的比例常数k成比例地相对于 在冲击工具时的活塞能量E和工作流体的压缩模块β。

    METHOD AND SYSTEM FOR CONTROLLING A COMPRESSOR AT A ROCK DRILLING APPARATUS AND A ROCK DRILLING APPARATUS
    84.
    发明公开
    METHOD AND SYSTEM FOR CONTROLLING A COMPRESSOR AT A ROCK DRILLING APPARATUS AND A ROCK DRILLING APPARATUS 审中-公开
    方法和系统用于控制压缩机用于岩石钻孔和岩石钻

    公开(公告)号:EP2609281A1

    公开(公告)日:2013-07-03

    申请号:EP11820260.5

    申请日:2011-08-25

    IPC分类号: E21B21/08 E21B44/00

    摘要: The present invention relates to a control of a compressor (8) at a rock drilling apparatus, said rock drilling apparatus including a power source for driving a compressor (8) at a rock drilling process, said compressor (8) being arranged to operate according to a first mode and according to a second mode, wherein, in said first mode, the work produced by the compressor (8) is arranged to be controlled by controlling the rotation speed of said compressor (8), and wherein, in said second mode, the work produced by the compressor (8) is arranged to be controlled by controlling the air flow at the compressor inlet. The method includes determining a parameter value representing a demand of work from said compressor (8), controlling the compressor (8) according to said first mode when said parameter value representing a demand of work from said compressor (8) exceeds a first demand, and controlling the compressor (8) according to said second mode when said parameter value representing a demand of work from said compressor is lower than said first demand. The invention also relates to a system and a rock drilling apparatus.

    HYDRAULIC PERCUSSIVE ARRANGEMENT, PISTON GUIDE AND DRILLING RIG
    88.
    发明公开
    HYDRAULIC PERCUSSIVE ARRANGEMENT, PISTON GUIDE AND DRILLING RIG 审中-公开
    液压冲击安排,活塞导向钻井

    公开(公告)号:EP2552651A1

    公开(公告)日:2013-02-06

    申请号:EP11763133.3

    申请日:2011-03-22

    发明人: JONSSON, Per

    IPC分类号: B25D9/12 B25D17/06

    摘要: The present invention relates to a hydraulic percussive arrangement comprising a displaceable arrangement (1) in a casing (11), in which casing (11) the following are arranged at the displaceable arrangement (1): a first chamber (5) connected to a return line (7) for hydraulic oil, a bushing (6) on a first side of the first chamber (5) and separated from the first chamber (5) by a first gap (12) along the displaceable arrangement (1), and a second chamber (2) with a higher pressure of hydraulic oil than that of the first chamber (5) and arranged on a second side of the first chamber (5), separated from the first chamber (5) by a second gap (4) along the displaceable arrangement (1). According to the invention, a third chamber (8) is fixed arranged between the second gap (4) and the first chamber (5) and the third chamber (8) is connected to the first chamber (5) not only by a first passage (14) but also by a third gap (9) along the displaceable arrangement (1). The invention relates also to a piston guide in such a hydraulic percussive arrangement and to a drilling rig with such a percussive arrangement.

    METHOD AND ARRANGEMENT AT TRUCKS FOR TIPPING A LOADING BIN
    89.
    发明公开
    METHOD AND ARRANGEMENT AT TRUCKS FOR TIPPING A LOADING BIN 审中-公开
    方法和系统,用于小费CHARGE集装箱的卡车

    公开(公告)号:EP2536589A1

    公开(公告)日:2012-12-26

    申请号:EP11744977.7

    申请日:2011-02-17

    发明人: NIVA, Karl-Erik

    IPC分类号: B60P1/04

    CPC分类号: B60P1/283

    摘要: A truck for heavy transport that comprises a front part coupled with a rear part. The rear part comprises a load arrangement including a load frame arranged to support a loading bin. The loading bin is arranged such that it can be pivoted at the rear end of the load frame, whereby the load arrangement or load frame comprises a pivot arrangement arranged to displace the point of attack of the weight of the load during a lifting operation of the loading bed.