摘要:
The invention relates to a securing system for the roof (10) of an underground road, said securing system comprising a rock bolt (1) to which a mobile attachment device (20) can be secured, said attachment device (20) being connected to the rock bolt (1) so as to be freely rotatable relative to the rock bolt (1).
摘要:
A cable bolt comprises a cable having an elongate body with a first end and a second end, a barrel and wedge assembly attached to the cable at a position adjacent to the first end of the cable, and a seal member having a body defining a passageway that receives a portion of the elongate body of the cable. The body of the seal member includes at least one rib extending radially outward from the body of the seal member.
摘要:
A connector is disclosed for providing a positive and/or a non-positive connection between at least two connecting partners. The connector or connecting means has at least one first region which engages with the first connecting partner by way of a positive and/or a non-positive connection, and at least one second region is provided which engages with the at least second connecting partner by way of a positive and/or a non-positive connection. The connecting means provides a positive and/or non-positive connection between at least two connecting partners in a simple and inexpensive manner and which meets high safety requirements. The second region of the connecting means has a region which is formed from an at least partially flat material made of an Fe alloy with shape memory characteristics and which, when activated, ensures the positive and/or non-positive connection with the second connecting partner by way of a change in shape.
摘要:
A friction bolt assembly has a generally tubular friction bolt body defining a cavity longitudinally extending through the friction bolt body and having a split longitudinally extending along the friction bolt body to the friction bolt body leading end. A rod longitudinally extends through the cavity. An expansion element is mounted on, or integrally formed with, the rod at or toward the rod leading end and protrudes through the friction bolt body leading end. The expansion element has an engagement surface tapering toward the rod trailing end. A drive head is mounted on, or integrally formed with, the rod at or adjacent the rod trailing end. The rod is actuatable by rotation of the drive head to draw the expansion element toward the friction bolt body trailing end such that the engagement surface engages the friction bolt body at the friction bolt body leading end, radially outwardly deforming the friction bolt body at the friction bolt body leading end. The friction bolt assembly may comprise means for at least substantially preventing rotation of the expansion element relative to the friction bolt body.
摘要:
The invention relates to a yieldable rock anchor (10) comprising an anchor element (12) extending along a longitudinal center axis (A) and having a first end (14), a second end (16) and an outer surface (18). An anchor plate (20) is attached near the first end (14) of the anchor element, and an anchor head (22) is secured to the first end of the anchor element and adapted to clampingly engage the anchor plate (20). On its outer surface, the anchor element (12) is provided along at least substantially its entire length with a plurality of ribs (24). A plurality of sleeves (26), each sleeve having two opposing ends (28, 30), for covering some of the plurality of ribs is fixedly arranged on the outer surface of the anchor element (12) such that each of the opposing ends (28, 30) at least substantially sealingly engages the outer surface (18) of the anchor element (12).
摘要:
A cable bolt comprising a plurality of flexible steel filaments formed around a central member, the cable bolt having spaced bulbous portions along the length of the bolt each bulbous portion defining a cavity containing a segmented ring that surrounds the central member to engage the filaments of the bulbous portion.
摘要:
A setting tool for inserting an anchor rod into a borehole filled with a curable mass or filled with a cartridge containing a curable mass is disclosed. The setting tool includes a housing, which has a receptacle for the anchor rod, into which the anchor rod can be inserted in the longitudinal direction and in which the anchor rod can be fixed. At least one clamping element is tilted at an angle from the longitudinal axis of the receptacle and is supported in a guide in the receptacle in such a way that the clamping element can be moved from a receiving position, in which the anchor rod can be inserted into the receptacle in the longitudinal direction, to a clamping position, in which the anchor rod is fixed in the receptacle in the circumferential direction, by rotating the housing relative to the anchor rod.
摘要:
Rock bolt (1) comprising at least an elongated body (4), one end of which comprises at least a first external conical portion (16) extending through at least one hole (12) in at least a cylindrical expandable body (5), the hole (12) over a section of the bore hole in the axial direction comprises an internally conical part (15) intended to cooperate with the elongate member outer conical portion (16). Upon relative movement of the elongate body (4) and the expandable body (5) in one direction expands the expandable body in the radial direction. The relative axial movement between the elongated body (4) and the expandable body (5) is provided by at least one tensioning device (7). The rock bolt comprises at least one wedge device (2), which in use of the rock bolt, is connected to the expandable body (5) hole (12) and at least partially inserted between a first portion (17) and at least a second part (18). The rock bolt further comprises at least one connecting means (21).
摘要:
A connector is disclosed for providing a positive and/or a non-positive connection between at least two connecting partners. The connector or connecting means has at least one first region which engages with the first connecting partner by way of a positive and/or a non-positive connection, and at least one second region is provided which engages with the at least second connecting partner by way of a positive and/or a non-positive connection. The connecting means provides a positive and/or non-positive connection between at least two connecting partners in a simple and inexpensive manner and which meets high safety requirements. The second region of the connecting means has a region which is formed from an at least partially flat material made of an Fe alloy with shape memory characteristics and which, when activated, ensures the positive and/or non-positive connection with the second connecting partner by way of a change in shape.
摘要:
Alpine anchor for anchoring threaded rods in soil or rock, with a metal base plate having a number of threaded bores which are distributed about the circumference and into which the threaded rods can be screwed with an assembly machine, wherein at least one plug coupling is arranged between the stationary part and the base plate.