公开(公告)号：US4248136A

公开(公告)日：1981-02-03

申请号：US931729

申请日：1978-08-07

申请人： Guy Blanpain ,  Pierre Grandfils

发明人： Guy Blanpain ,  Pierre Grandfils

IPC分类号： E21D23/16 ,  E21C35/14 ,  E21D23/20 ,  E21F13/08 ,  F15B11/15 ,  F15B11/16 ,  F01L25/06 ,  F01B7/18

CPC分类号： E21F13/086 ,  E21C35/14 ,  E21D23/20

摘要： The invention relates to a thrust device using a plurality of hydraulic jacks, and to the automatic control of a plurality of thrust jacks.Two differential jacks have resetting chambers which are permanently under hydraulic pressure. Associated with each jack there is a self-locking piloted valve placed in the active position by a push-rod at the end of a work stroke of the piston of the jack and restored into the inactive position by a piloted valve actuated by a push-rod 39 at the end of the return stroke of the piston to its starting position. In the active position the self-locking piloted valve controls the isolation from the supply of all the work chambers and the venting of the associated work chamber 14.

摘要翻译： 本发明涉及一种使用多个液压千斤顶的推力装置以及多个推力千斤顶的自动控制。 两个差动千斤顶具有永久在液压下的复位腔。 与每个千斤顶相关联的是，一个自锁导向阀通过推杆在插座的活塞的工作行程结束时置于主动位置，并通过由推杆驱动的导向阀恢复到非活动位置， 杆39在活塞的返回行程结束时到达其起始位置。 在主动位置，自锁导向阀控制从所有工作室的供应和相关联的工作室14的排放的隔离。

公开(公告)号：US4212362A

公开(公告)日：1980-07-15

申请号：US946055

申请日：1978-09-25

申请人： Guy Blanpain ,  Pierre Grandfils

发明人： Guy Blanpain ,  Pierre Grandfils

IPC分类号： B65G23/42 ,  B62D55/116 ,  B62D55/20 ,  B62D57/024 ,  E21C29/22 ,  B62D11/04

CPC分类号： E21C29/22 ,  B62D55/116 ,  B62D55/20

摘要： A device for causing translation of a machine carried on a sledge surrounded by an articulated track comprises a pushing member provided on a jack supported by the sledge, the pushing member cooperating with abutments provided on the inside of the track. The track comprises a plurality of articulated shoes each formed of two L-shaped half-shoes fastened together so that the shorter branches thereof are spaced from one another and are substantially parallel to the direction of movement of the track. Each abutment is carried by the shorter branches of each shoe whereby the passage formed by the space between the two shorter branches is at a position corresponding to that of the respective abutment.

摘要翻译： 用于使承载在由铰接轨道围绕的滑架上的机器的平移的装置包括设置在由滑架支撑的千斤顶上的推动构件，所述推动构件与设置在轨道内侧上的基台配合。 轨道包括多个铰接的鞋，每个铰链的鞋由两个紧固在一起的L形半鞋形成，使得其较短的分支彼此间隔开并且基本上平行于轨道的移动方向。 每个支座由每个鞋的较短分支承载，由此由两个较短分支之间的空间形成的通道处于与相应支座的位置相对应的位置。

公开(公告)号：US4358224A

公开(公告)日：1982-11-09

申请号：US166399

申请日：1980-07-07

申请人： Guy Blanpain ,  Pierre Grandfils

发明人： Guy Blanpain ,  Pierre Grandfils

IPC分类号： E21D19/04 ,  E21D23/00 ,  E21D23/04 ,  E21D23/08 ,  E21D15/34

CPC分类号： E21D23/0021 ,  E21D23/0086 ,  E21D23/0472 ,  E21D23/088

摘要： A gantry support for supporting a roof of a passage includes two parallel supporting units each having a lower frame provided with articulated tracks and an upper frame carried by props and two cross-members. The two cross-members carry an intermediate upper frame in the form of a beam which is slidable on guide elements and adapted to be clamped to the roof by small jacks. As the support advances the beam remains clamped against the roof of the passage until the beam reaches an end stop. The small jack is then released and the beam slidably advanced along the guide elements by means of a further jack.

摘要翻译： 用于支撑通道顶部的支架支撑件包括两个平行的支撑单元，每个支撑单元具有设置有铰接轨道的下框架和由道具和两个横向构件承载的上框架。 两个横向构件携带以梁的形式的中间上框架，其可在导向元件上滑动并且适于通过小插座夹紧到屋顶。 随着支撑的进行，梁保持夹紧在通道的顶部上，直到梁到达终点。 然后释放小千斤顶，并且通过另一个千斤顶沿着引导元件可滑动地前进。

公开(公告)号：US4231672A

公开(公告)日：1980-11-04

申请号：US52013

申请日：1979-06-25

申请人： Guy Blanpain ,  Pierre Grandfils

发明人： Guy Blanpain ,  Pierre Grandfils

IPC分类号： E21D17/10 ,  F16C11/06 ,  F16C11/00

CPC分类号： F16C11/0661 ,  E21D17/10 ,  Y10T403/32081

摘要： A ball joint for transmitting forces between the prop and the head-piece of a support unit has a spherical head received in the spherical internal surface of a dome. The dome is enclosed by a spherical ring which is fastened to the head. The rod of a prop carries a pivot which is mounted with radial clearance in a cylindrical cavity located within the sphericl head.

摘要翻译： 用于在支撑单元的支柱和头部件之间传递力的球形接头具有容纳在圆顶的球形内表面中的球形头部。 圆顶由固定在头部上的球形环封闭。 支柱的杆带有一个枢轴，该枢轴在径向间隙中安装在位于球形头部内的圆柱形腔内。

公开(公告)号：US4348138A

公开(公告)日：1982-09-07

申请号：US163474

申请日：1980-06-27

申请人： Guy Blampain ,  Pierre Grandfils

发明人： Guy Blampain ,  Pierre Grandfils

IPC分类号： E21D19/04 ,  E21D23/00 ,  E21D23/04 ,  E21D23/08

CPC分类号： E21D23/0021 ,  E21D23/0472 ,  E21D23/088

摘要： A gantry support for supporting a roof of a passage is advanceable along a floor of the passage. The support has two parallel supporting elements mutually spaced apart laterally of the support, each element including at least two pairs of frames provided with articulated tracks. One frame of each pair is an upper frame and the other is a lower frame, the tracks of which are adapted to be applied respectively against the roof and floor of the passage by loading jacks applying a spreading force between the upper and lower frames. An intermediate upper frame is carried by an upper cross-member extending from one supporting element to the other and at least one loading jack applying a spreading force connects each lower frame to the corresponding end of the upper cross-member.

摘要翻译： 用于支撑通道屋顶的龙门支架可沿通道的地板前进。 支撑件具有两个平行的支撑元件，该支撑元件在支撑件的侧面相互间隔开，每个元件包括设置有铰接轨道的至少两对框架。 每一对中的一个框架是上框架，另一框架是下框架，其轨道适于通过在上框架和下框架之间施加扩展力的插座加载而分别抵靠通道的屋顶和地板。 中间上框架由从一个支撑元件延伸到另一个的上横向构件承载，并且施加扩展力的至少一个装载千斤顶将每个下框架连接到上横梁的相应端部。