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    HYDRAULIC IMPACT DEVICE WITH PRESSURE ACCUMULATOR
    21.
    发明公开
    HYDRAULIC IMPACT DEVICE WITH PRESSURE ACCUMULATOR 有权
    具有压力MEMORY液压避震装置

    公开(公告)号：EP2064033A1

    公开(公告)日：2009-06-03

    申请号：EP07808828.3

    申请日：2007-09-19

    申请人： Atlas Copco Construction Tools AB

    发明人： KARLSSON, Peter Börje Sixten

    IPC分类号： B25D9/14 ,  E21B1/26 ,  F15B1/14

    CPC分类号： B25D9/145 ,  B25D2250/371 ,  F15B2201/21 ,  F15B2201/3151 ,  F15B2201/3158

    摘要： A hydraulic impact device comprises a housing (10) with a cylinder (11) and a hammer piston (13) guided in the cylinder (11) and reciprocated by a hydraulic control system including a directional valve (18) and a pressure accumulator (19), wherein the pressure accumulator (19) comprises a pressure chamber (20) divided into two compartments (20a, 20b) by an elastic flexible membrane (21), and a movable membrane support (24) formed by a disc element (26) with a convex contact surface, and a spring (28) acting both as a biasing means and a guide means for the disc element (26), said spring (28) is positively located relative to the disc element (26) by a circular recess (30) in the latter and by a tubular neck portion (29) on the housing (10).

    Method and device for determining the quantity of milk extracted from one cow
    22.
    发明公开
    Method and device for determining the quantity of milk extracted from one cow 失效
    用于确定从一个COW提取的奶的数量的方法和装置

    公开(公告)号：EP0372089A4

    公开(公告)日：1990-10-24

    申请号：EP89906485

    申请日：1989-04-14

    申请人： LATVIJSK SELKOKHOZ AKAD

    发明人： MOSKVIN GENNADY ALEXEIVICH

    IPC分类号： A01J7/00 ,  A01J5/01 ,  E21B1/26 ,  E21B6/00 ,  E21B6/04 ,  E21B19/08 ,  E21B19/086 ,  E21B44/06 ,  G01F11/28 ,  G01F23/74

    CPC分类号： G01F23/74 ,  A01J5/01 ,  E21B6/00 ,  E21B44/06 ,  G01F11/284

    摘要： A method of determining the quantity of milk extracted by a milking installation from one cow consists of producing a continuous flow of milk (28) from one cow and making, from that flow, separate doses of milk (28). The production of separate doses of milk (28) in a device for implementation of said method is effected by making separate doses of milk (28) corresponding to a preset flow rate of milk (28) by means of a milk flow rate transmitter (24) located in a receiving chamber (22) of a milk counter (1), a correction being thus introduced into the process of production of separate milk doses by means of a pick-up (15) for selecting separate milk doses, said correction characterizing the dynamic error. Then, from the separate doses of milk (28), optimal doses of milk (28) are determined with due consideration of the qualities of the milk (28) and of the maximum sensitivity of the counter (1), by means of an optimal milk dose pick-up (33) located in the outlet chamber (23) of the counter (1), a correction being thus introduced into the process of determining the optimal doses of milk (28) by means of a pick-up (16) for summing the optimal milk doses, said correction characterizing the static error. The optimal doses of the milk (28) are then summed together by means of a computing unit (19).

    VORRICHTUNG ZUR ERZEUGUNG VON SCHLAGIMPULSEN ODER SCHWINGUNGEN FÜR EINE BAUMASCHINE
    25.
    发明公开
    VORRICHTUNG ZUR ERZEUGUNG VON SCHLAGIMPULSEN ODER SCHWINGUNGEN FÜR EINE BAUMASCHINE 审中-公开

    公开(公告)号：EP4001510A1

    公开(公告)日：2022-05-25

    申请号：EP20207463.9

    申请日：2020-11-13

    申请人： Eurodrill GmbH

    发明人： MERZHÄUSER, Markus

    IPC分类号： E02D7/06 ,  B06B1/18 ,  E02D7/18 ,  E21B1/26

    摘要： Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Erzeugen von Schlagimpulsen oder Schwingungen für eine Baumaschine, mit einem Gehäuse, einem Kolben, welcher in einem Arbeitsraum in dem Gehäuse reversierend zwischen einem ersten Umkehrpunkt und einem zweiten Umkehrpunkt hin und her bewegbar ist, einer Druckfluidversorgung durch welche im Bereich des ersten Umkehrpunktes und des zweiten Umkehrpunktes jeweils Druckfluid in den Arbeitsraum ein- und ausleitbar ist, wobei der Kolben zum Erzeugen der Schlagimpulse beziehungsweise der Schwingungen in die reversierende Bewegung versetzbar ist, mindestens einem steuerbaren Ventil, durch welches das Druckfluid in den Arbeitsraum ein- und/oder ausleitbar ist, und einer Steuereinheit, welche mit dem mindestens einen steuerbaren Ventil in Verbindung steht, wobei durch die Steuereinheit die Bewegung des Kolbens in dem Arbeitsraum steuerbar und veränderbar ist. Nach der Erfindung ist vorgesehen, dass die Steuereinheit ausgebildet ist, den Kolben mit einer Frequenz zu bewegen, welche einer Resonanzfrequenz einer Gesamtanordnung entspricht, welche den Kolben und das Druckfluid umfasst.

    REMOTE CONTROL OF STROKE AND FREQUENCY OF PERCUSSION APPARATUS AND METHODS THEREOF
    26.
    发明公开
    REMOTE CONTROL OF STROKE AND FREQUENCY OF PERCUSSION APPARATUS AND METHODS THEREOF 审中-公开

    公开(公告)号：EP3328591A1

    公开(公告)日：2018-06-06

    申请号：EP16833631.1

    申请日：2016-07-29

    申请人： TEI Rock Drills, Inc.

    发明人： PATTERSON, William, N.

    IPC分类号： B25D9/26 ,  B25D9/14 ,  E21B1/26 ,  E21B4/14

    CPC分类号： E21B4/14 ,  B25D9/12 ,  B25D9/26 ,  E21B44/02

    摘要： This disclosure describes methods and systems for remote control of stroke length and frequency of percussion apparatus, such as a rock hammer drill. At a high level, the hammer drill is allowed to stay at a default low stroke length and high frequency to avoid applying excessive cyclic stress to the housing of the hammer drill and can be controlled to operate at a long stroke length and low frequency when the hammer drill has engaged the target material. The long stroke length and low frequency during operation can be initiated when a sufficient forward feed pressure is provided. While the hammer drill is idling or retracting, the forward fee pressure is not sufficient for the long stroke length operation and thus the drill operates at the default state and at a safe stress level to avoid premature damage.

    DEVICE IN A ROCK DRILLING MACHINE AND ROCK DRILLING MACHINE
    28.
    发明公开
    DEVICE IN A ROCK DRILLING MACHINE AND ROCK DRILLING MACHINE 审中-公开
    EORER GESTEINSBOHRMASCHINE VORRICHTUNG在GESTEINSBOHRMASCHINE

    公开(公告)号：EP2925491A4

    公开(公告)日：2016-07-27

    申请号：EP13859488

    申请日：2013-11-22

    申请人： ATLAS COPCO ROCK DRILLS AB

    发明人： JAKOBSSON ERIK ,  JOHANSSON THOMAS

    IPC分类号： B25D9/14 ,  E21B1/26 ,  F16K27/00

    CPC分类号： B25D9/20 ,  B25D9/12 ,  B25D9/18 ,  F15B13/02 ,  F16K27/041

    摘要： A device in a hydraulic rock drilling machine (1) has a distribution valve (7, 7′, 7″) for controlling hydraulic flow to different parts of the rock drilling machine. The distribution valve has a valve body (8, 8′, 8″) which moves to and from in an axial direction inside a valve chamber (33). The valve chamber is limited in axial direction by two valve end walls (10, 11; 10′, 11′; 10″, 11″). One of the valve end walls is movable in an axial direction against an abutment (12, 12″) to define an end position for the valve body, and a pressing device (13, 13′, 13″) is provided for pressing at least one of the valve end walls against the abutment. A rock drilling machine includes the device.

    摘要翻译： 一种液压凿岩机（1）中的装置，包括与凿岩机相连的排放阀（7,7'，7“），用于控制到凿岩机的不同部分的液压流，其中分配阀包括 一个阀体（8,8'，8“），其可以在阀室（33）内沿轴向移动地布置，并且其中所述阀室在轴向上被两个阀端壁（10,11; 10'，11; 10“，11”）。 其中一个阀门端壁可以沿轴向方向抵靠着支座（12,12“）移动，从而限定阀体的终端位置，而压紧装置（13,13'，13”）是 布置成压靠所述阀端壁中的所述至少一个抵靠所述基座。 本发明还涉及一种凿岩机。