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    CONTROL VALVE
    1.
    发明申请
    CONTROL VALVE 有权
    控制阀

    公开(公告)号：US20160003372A1

    公开(公告)日：2016-01-07

    申请号：US14789030

    申请日：2015-07-01

    Applicant: SANDVIK MINING AND CONSTRUCTION OY

    Inventor： Timo LEINO ,  Timo MUUTTONEN ,  Antti KOSKIMAKI ,  Ari KOTALA

    IPC: F16K47/04 ,  E21B21/10 ,  E21B21/08 ,  F16K31/12

    CPC classification number: E21B4/14 ,  E21B4/06 ,  E21B21/08 ,  E21B21/103 ,  F16K31/12 ,  F16K47/04

    Abstract: A control valve for controlling flow of a pressure fluid in a breaking device includes a sleeve-like control valve having at least one opening enabling flow of the pressure fluid through the opening. The at least one opening includes at least one wall, at least a part of which is not arranged in a direction parallel to a radial direction of the control valve extending through the middle point of the cross section of the opening on the outer circumference of the control valve, such that the pressure fluid flowing through the opening may be arranged to rotate the control valve about the longitudinal axis of the control valve.

    Abstract translation: 用于控制断开装置中的压力流体流动的控制阀包括套筒状的控制阀，该阀套具有至少一个使得压力流体能够通过开口流动的开口。 所述至少一个开口包括至少一个壁，所述至少一个壁的至少一部分不沿与所述控制阀的径向方向平行的方向设置，所述控制阀延伸穿过所述开口外周上的所述开口的横截面的中点 控制阀，使得流过开口的压力流体可以布置成使控制阀围绕控制阀的纵向轴线旋转。

    ROCK DRILLING ARRANGMENT AND MACHINE
    2.
    发明申请
    ROCK DRILLING ARRANGMENT AND MACHINE 有权

    公开(公告)号：US20220176535A1

    公开(公告)日：2022-06-09

    申请号：US17436732

    申请日：2020-03-16

    Applicant: SANDVIK MINING AND CONSTRUCTION OY

    Inventor： Antti KOSKIMAKI ,  Mikko HAMALAINEN ,  Matti VIINIKKA

    IPC: B25D17/28 ,  B25D9/14 ,  E21B4/14

    Abstract: A rock drilling arrangement includes an impact device having a frame, pressure chambers in the frame, and a piston arranged in the impact device. The arrangement further includes a rear mounting arrangement for attaching the impact device to a carriage, a front mounting arrangement for attaching the impact device to a machine component, at least one fore pressure accumulator arranged on a front side of the rear mounting arrangement in an axial direction of the piston, and at least one rear pressure accumulator arranged on a back side of the rear mounting arrangement. The fore pressure accumulator and the rear pressure accumulator are connected to one of the pressure chambers and arranged to absorb pressure fluctuations in the pressure chambers.

    BREAKING DEVICE
    3.
    发明申请
    BREAKING DEVICE 有权
    破碎装置

    公开(公告)号：US20160001432A1

    公开(公告)日：2016-01-07

    申请号：US14789618

    申请日：2015-07-01

    Applicant: SANDVIK MINING AND CONSTRUCTION OY

    Inventor： Timo KELA ,  Timo MUUTTONEN ,  Antti KOSKIMAKI

    IPC: B25D9/14 ,  E21B1/02 ,  B25D9/12

    CPC classification number: B25D9/145 ,  B25D9/12 ,  B25D9/18 ,  B25D9/20 ,  B25D2250/275 ,  E21B1/02 ,  E21B7/025

    Abstract: A breaking device includes a frame, an impact device having a pressure chamber with a rear pressure chamber and a front pressure chamber. The breaking device further includes a first low pressure port at the rear pressure chamber, a first low pressure channel and a first low pressure accumulator connected to the first low pressure channel. The breaking device further includes a second low pressure port at the rear pressure chamber substantially opposite to the first low pressure port, second low pressure channel and a second low pressure accumulator connected to the second low pressure channel. The first low pressure accumulator and the second low pressure accumulator are arranged at the outer circumference of the frame of the breaking device at different positions in the axial direction of the breaking device.

    Abstract translation: 破碎装置包括框架，具有带有后压力室的压力室和前压力室的冲击装置。 断路装置还包括在后压力室处的第一低压端口，连接到第一低压通道的第一低压通道和第一低压蓄能器。 该断路装置还包括一个与第一低压端口基本相反的后压力室的第二低压端口，第二低压通道和连接到第二低压通道的第二低压蓄能器。 第一低压蓄能器和第二低压蓄能器在断开装置的轴向的不同位置处设置在断路装置的框架的外周。

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