Cutter bit assemblies and arrangements for use with mining or tunnelling
machines
    1.
    发明授权
    Cutter bit assemblies and arrangements for use with mining or tunnelling machines 失效
    切割机组合和安装使用采矿或隧道掘进机

    公开(公告)号:US5092660A

    公开(公告)日:1992-03-03

    申请号:US601902

    申请日:1990-10-22

    IPC分类号: E21C35/18 E21C27/44 E21C35/19

    摘要: A cutter bit assembly for a mining or tunnelling machine has a cutter shank detachably fitted into a socket of a holder. To secure the shank in position a piston is displaced to cause pressure fluid to flow into a working chamber and act on a piston at one end of a rod-like securing element. The element is forced against a surface of the shank to urge the shank about a pivot and this in turn thrusts rear support surfaces of the cutter and the holder together. To release the cutter the pressure fluid is relieved and spring force displaces the securing element away from the shank. In this released condition, the cutter can be swivelled about the pivot and withdrawn from the socket.

    摘要翻译: 用于采矿或隧道掘进机的切割刀组件具有可拆卸地装配到保持器的插座中的切割器柄。 为了将柄固定在适当位置,活塞被移动以使压力流体流入工作室并且作用在杆状固定元件的一端处的活塞上。 元件被迫靠在柄的表面上以围绕枢轴推动柄,这又将切割器和保持器的后支撑表面推在一起。 为了释放切割器,释放压力流体,弹簧力使固定元件远离柄。 在这种释放状态下,刀具可绕枢轴转动并从插座中取出。

    Mineral winning plough
    3.
    发明授权
    Mineral winning plough 失效
    矿山犁

    公开(公告)号:US4583785A

    公开(公告)日:1986-04-22

    申请号:US598253

    申请日:1984-04-09

    IPC分类号: E21C27/32

    CPC分类号: E21C27/32

    摘要: A coal plough has an elongate plough body which is provided with cutters at each end. The plough body is supported at each of its two ends, by a flat narrow skid on a plate of a plough guide. The skids constitute wear-resistant members and are connected to the plough body in a readily replaceable manner. The skids are so shaped that they guide the plough in the lower zone of the plough guide, and establish connection between the plough and the plough drive chain.

    摘要翻译: 煤犁具有在每端设置有切割器的细长犁体。 犁体在其两端的每一端处由犁导板的板上的平坦的窄的滑道支撑。 滑板构成耐磨构件,并以易于更换的方式连接到犁体。 滑橇的形状使其能够引导犁引导件的下部区域中的犁,并在犁和犁驱动链之间建立连接。

    Cutter-bit assemblies
    4.
    发明授权
    Cutter-bit assemblies 失效
    刀头组装

    公开(公告)号:US4762372A

    公开(公告)日:1988-08-09

    申请号:US24620

    申请日:1987-03-11

    CPC分类号: E21C35/19 E21C27/44

    摘要: A cutter-bit assembly employs an arcuate wedge to secure a cutter-bit within a pocket of a holder. The wedge fits into a tapered gap between complementary curved surfaces of the holder and the cutter-bit shank. A projecting insert carried by the shank mates with a serrated portion on the wedge. Contact is established between the wedge and the curved surfaces of the holder and the shank over outer regions separated by non-contacting clearances.

    摘要翻译: 铣刀组件采用弧形楔形件将切割刀头固定在保持器的口袋内。 楔形件装配在保持器和切割刀柄之间的互补曲面之间的锥形间隙中。 由柄承载的突出插入物与楔形物上的锯齿部分配合。 在楔形件和保持器的弯曲表面之间建立接触,并且在由非接触间隙分开的外部区域上形成柄。

    Connections for scraper-chain conveyors
    6.
    发明授权
    Connections for scraper-chain conveyors 失效
    刮板链输送机连接

    公开(公告)号:US4787501A

    公开(公告)日:1988-11-29

    申请号:US93261

    申请日:1987-09-04

    IPC分类号: B65G19/28

    CPC分类号: B65G19/285

    摘要: To firmly connect an upper trough-like component of a scraper-chain conveyor to a lower component use is made of arch-like locking pieces which fit on a side plate of the lower component which overlaps the side wall of the upper component. The upper regions of the locking pieces having inwardly projecting noses which fit into apertures in the side plate and side wall. Sockets are formed in projections on the side plate to receive the heads of screw-threaded securing elements which locate in recesses in the locking pieces and project through holes in side walls thereof. The securing elements adopt an inclined disposition and when nuts are tightened on their shanks the locking pieces tend to force and hold the upper component down on the lower component.

    摘要翻译: 为了将刮板链式输送机的上部槽状部件牢固地连接到下部部件,使用的是弓形锁定件,其配合在与上部部件的侧壁重叠的下部部件的侧板上。 锁定片的上部区域具有向内突出的鼻孔,其配合在侧板和侧壁中的孔中。 插座形成在侧板上的突起中,以容纳定位在锁定件中的凹槽中的螺纹固定元件的头部并突出在其侧壁中的孔。 固定元件采用倾斜的配置,当螺母在其柄上拧紧时,锁定件倾向于强制并将上部部件保持在下部部件上。

    Mineral mining installations
    7.
    发明授权
    Mineral mining installations 失效
    矿山开采设施

    公开(公告)号:US4715659A

    公开(公告)日:1987-12-29

    申请号:US907940

    申请日:1986-09-16

    CPC分类号: E21C35/12 E21C27/34 E21C35/20

    摘要: A mineral mining installation employs a scraper-chain conveyor constructed from individual pans joined end-to-end and a plough having a drive plate running beneath the conveyor and on a skid bed formed as a sub-frame structure on the floor of the working. The drive plate is connected via guide means to the haulage run of a chain in a lower guide passage at the side of the conveyor opposite to the plough. An upper guide passage accommodates the return run of the chain. The passages are defined by a guide structure fitted to the side walls of the pans and includes detachable covers which can be removed for access purposes. At least some of the covers are linked with the sub-frame structure with the aid of tongue-and-groove connections. These connections permit limited movement of the pans and guide structure relative to the sub-frame structure longitudinally of the conveyor and limited raising and tilting movements of the side walls of the pans opposite the machine and the covers relative to the sub-frame structure as the drive plate passes along the conveyor.

    摘要翻译: 矿物采矿设备采用刮板链式输送机,该输送机是由端到端连接的单独的平底锅和一个具有在输送机下面运行的驱动板的犁和在工作台面上作为子框架结构形成的滑动床构成的。 驱动板通过引导装置连接到传送带相对于犁的一侧的下导向通道中的链条的运送。 上引导通道容纳链条的回程。 通道由安装在平底锅的侧壁上的引导结构限定,并且包括可拆卸的盖,用于进入目的可以移除。 至少一些盖子借助于榫槽连接与子框架结构连接。 这些连接允许平板和引导结构相对于输送机纵向的子框架结构的有限的移动,并且与机架和盖相对的底板相对于子框架结构的侧壁的限制的升高和倾斜运动作为 驱动板通过输送机。

    Connections between the pans of scraper-chain conveyors
    8.
    发明授权
    Connections between the pans of scraper-chain conveyors 失效
    刮板链式输送机平底锅之间的连接

    公开(公告)号:US5033604A

    公开(公告)日:1991-07-23

    申请号:US533384

    申请日:1990-06-05

    IPC分类号: B65G19/28

    CPC分类号: B65G19/287

    摘要: The pans of a scraper-chain conveyor have a plough guide at one side. The pans are connected together at said one side with the aid of coupling pieces engaged in pockets in the side walls of the pans. Each coupling piece is pivotably fitted to a plate-like securing element which serves as a handle to enable the coupling piece to be inserted into or removed from the pockets. The securing element can be swung down into further pockets formed in the plough guide to lock the coupling piece in place.

    摘要翻译: 刮板链式输送机的平底锅在一侧具有犁式导轨。 平底锅在所述一侧借助于与平底锅的侧壁中的凹穴接合的联接件连接在一起。 每个联接件可枢转地装配到用作手柄的板状固定元件上,以使联接件能够插入或从袋中取出。 固定元件可以向下摆动到形成在犁式引导器中的另外的凹穴中,以将联接件锁定在适当的位置。

    Control of mineral mining machines
    9.
    发明授权
    Control of mineral mining machines 失效
    矿山机械的控制

    公开(公告)号:US4934757A

    公开(公告)日:1990-06-19

    申请号:US322951

    申请日:1989-03-14

    CPC分类号: E21C35/10 E21C27/34

    摘要: A coal wining plough in a longwall working employs adjustable floor cutters mounted on curved carriers displaced in guideways on the body of the plough. Wedges abut on the upper ends of the carriers and are moved by hydraulic piston and cylinder units to set the position of the floor cutters and define the cutting level adopted by the plough. The units are operated with the aid of valves which respond to an electronic control device. Command signals from a remote control station are transmitted as by a radio to the plough to set up the electronic control device. Sensors on the plough provide electrical signals representing the position of the interface between the coal face and the floor and these signals are transmitted back to the control station. In a control sequence the plough runs along the seam and the sensor(s) provide signals relayed to the control station which also receives signals representing the distance moved by and/or the position of the plough. On a succeeding run the control station provides the control of the leading floor cutter in accordance with a control program.

    摘要翻译: 长壁工作中的煤犁耕作采用可调式地板切割机,安装在犁体上的导轨上移动的弯曲载体上。 楔子抵靠在托架的上端,并由液压活塞和气缸单元移动,以设定地板切割器的位置并确定犁所采用的切割级别。 这些单元借助于响应于电子控制装置的阀操作。 来自远程控制站的命令信号通过无线电发送到犁地以建立电子控制装置。 犁上的传感器提供表示煤面和地面之间的界面位置的电信号,这些信号被传送回控制站。 在控制顺序中,犁沿接缝运行,并且传感器提供中继到控制站的信号,该信号还接收代表犁的移动距离和/或位置的信号。 在接下来的运行中,控制站根据控制程序提供领先的地板切割机的控制。