摘要:
A head or bottom element of a component support, having guide rails which are arranged side-by-side and aligned in an insertion direction for receiving a printed circuit board of a plug-in module. The guide rails are constituted or formed by one-piece guide elements of the head or bottom element. The head or bottom element includes an electrically conductive material at least over portions of its area. If the head or bottom element has a surface coating of electrically non-conductive material, at least partially in the area of the guide rail, it is then possible to achieve a dependable insulation of the printed circuit board from the head or bottom element in a simple and cost-effective manner.
摘要:
A device for detachable electrical connection of a contact pin to a sheet metal component. According to this invention, a durable conducting connection of the contact pin to the sheet metal component may be achieved, whereby the sheet metal component has at least one perforation, in which a sleeve for a contact element is housed in an electrically-conducting manner, enclosing a spring element. The contact pin is housed in the sleeve by the spring element in the assembled position and the contact pin and the sleeve are electrically connected to the sheet metal component by the spring element. This arrangement has a particularly high current-carrying capacity as a result of the spring arrangement housed in the sleeve.
摘要:
A head or bottom element of a component support, having guide rails arranged side-by-side and aligned in an insertion direction for receiving a printed circuit board of a plug-in module, wherein the guide rails are formed by one-piece guide elements of the head or bottom element. The guide elements can be formed of two rows of several guide strips per guide rail, each of which extends in the insertion direction, which strips are punched out of a plate-shaped head or bottom element and are projectingly beveled in the direction toward an underside of the head element or a top of the bottom element. A distance of the guide strips of the guide rails is matched to the thickness of the printed circuit boards of the plug-in modules. The head or bottom element forms guide paths for the printed circuit boards of the plug-in modules between the rows of guide strips of the guide rails. The production of the head or bottom element is not only simplified, but is also made cheaper, and furthermore the possibility of contacting the head or bottom element with the printed circuit boards is increased.
摘要:
A head or bottom element of a component support, having guide rails arranged side-by-side and aligned in an insertion direction for receiving a printed circuit board of a plug-in module, wherein the guide rails are formed by one-piece guide elements of the head or bottom element. The guide elements can be formed of two rows of several guide strips per guide rail, each of which extends in the insertion direction, which strips are punched out of a plate-shaped head or bottom element and are projectingly beveled in the direction toward an underside of the head element or a top of the bottom element. A distance of the guide strips of the guide rails is matched to the thickness of the printed circuit boards of the plug-in modules. The head or bottom element forms guide paths for the printed circuit boards of the plug-in modules between the rows of guide strips of the guide rails. The production of the head or bottom element is not only simplified, but is also made cheaper, and furthermore the possibility of contacting the head or bottom element with the printed circuit boards is increased.
摘要:
A device for detachable electrical connection of a contact pin to a sheet metal component. According to this invention, a durable conducting connection of the contact pin to the sheet metal component may be achieved, whereby the sheet metal component has at least one perforation, in which a sleeve for a contact element is housed in an electrically-conducting manner, enclosing a spring element. The contact pin is housed in the sleeve by the spring element in the assembled position and the contact pin and the sleeve are electrically connected to the sheet metal component by the spring element. This arrangement has a particularly high current-carrying capacity as a result of the spring arrangement housed in the sleeve.
摘要:
The joint-pin modular unit for articulately connecting a fork-type or stirrup device (1) with a connecting eye embracing a joint pin (8) of the fork-type or stirrup device (1), includes at least one seal (9) provided between the connecting eye and the pin, wherein the joint pin (8) is rotationally guided in bearing bushes (6, 7) of the fork-type or stirrup device (1) and annular seals (9) are arranged between the connecting eye and the bearing bush end faces located adjacent to the connecting eye. The externally located end faces of the pin (8) are closed by covers (10, 11) tightly covering the bearing bushes (6, 7), wherein the surface of the pin is surrounded by a lubricant film and at least one substantially axial bore (13), and a plurality of radial bores (14, 15) leading to the surface of the pin, are provided for the supply of lubricant.
摘要:
A device for sucking off drillings during the drilling of boreholes, comprising a suction fan (9) and a filter (10) as well as an opening closeable by a lid for emptying the drillings reception space (8) preceding the filter (10), in which, for the simple cleaning of the filter (10), the lid (12) is connected with a vibrating mechanism for the filter (10).
摘要:
The joint-pin modular unit for articulately connecting a fork-type or stirrup device (1) with a connecting eye embracing a joint pin (8) of the fork-type or stirrup device (1), includes at least one seal (9) provided between the connecting eye and the pin, wherein the joint pin (8) is rotationally guided in bearing bushes (6, 7) of the fork-type or stirrup device (1) and annular seals (9) are arranged between the connecting eye and the bearing bush end faces located adjacent to the connecting eye. The externally located end faces of the pin (8) are closed by covers (10, 11) tightly covering the bearing bushes (6, 7), wherein the surface of the pin is surrounded by a lubricant film and at least one substantially axial bore (13), and a plurality of radial bores (14, 15) leading to the surface of the pin, are provided for the supply of lubricant.
摘要:
In a driving or mining machine including cutter rolls or drums which are mounted for rotation on a cantilever arm pivotable in the vertical direction, bearings and/or gears are arranged in the axial direction of the cutter rolls or drums between parts of the rolls or drums. The bearings and/or gears are connected with the cantilever arm or an actuating means provided in the cantilever arm. At least one stationary cutter bit is arranged on the cantilever arm in the region of the bearings and/or gears between neighboring parts of the rolls or drums in a plane through which the axis of the cantilever arm passes. The cutter bit has at least two cutting edges, a first cutting edge being provided substantially tangential to the enveloping curve of the rotating bits in the direction of the axis of the cantilever arm and a second cutting edge being provided so as to enclose an angle with the first cutting edge.
摘要:
In a heading machine (1) including a track chain running gear, a cutter arm (3) pivotally fixed to a machine frame and comprising rotatably drivable cutting tools (4), a fresh-air supply for supplying fresh air to the working face, and an exhaust means for evacuating exhaust air and dust from the working face, the heading machine (1) further comprises at least one anchor drilling and setting device (5) disposed behind the cutting tools (4) and at least one working platform (11) disposed at least partially laterally outside the anchor drilling and setting device (5), wherein at least one air duct of the fresh-air supply and/or the exhaust means is led through below the at least one working platform (11) and/or laterally led around the working platform (11).