Headframe

Abstract: D laser scanning technology to a complete and high-precision reconstruction scan physical and quick access to the raw survey data, the most important feature is high precision, fast speed, approaching the prototype, has been widely used in various fields of mapping and other. In this paper, based on the three-dimensional laser scanner application elaborated on the basis of the domestic situation, and focuses on the application in the mining field, including: 3D reconstruction and measurement of open pit, headframe deformation monitoring, mining subsidence monitoring, construction land reclamation regulatory, difficult arrival region survey of coal gangue dump, landslide monitoring, deformation monitoring of underground mined area. Finally, the five aspects of the future development trend were forecasted and analyzed.

Abstract: The headframe supports tubular pipe guides in the shaft. Each guide comprises a multiplicity of pipes threaded one to another and extends below the normal range of conveyance travel in the shaft. Each guide is suspended from the headframe by a substantially solid bar depending from the headframe and threadably connected to the uppermost pipe. A bushing fixed in the shaft below the travel range has an associated pipe guide passing loosely therethrough to permit vertical and lateral movement of the pipe guide. A conveyance is suspended on wire rope from the headframe and is guided by the pipe guides. The conveyance has guide bushings slideably engaging each of the pipe guides. Weights are attached to the bottom of each of the pipe guides and the total weight added to each is not equal to that added to any other guide. This avoids having similar harmonics in the pipe guides. The weights are attached to a substantially solid bar threaded into the lower end of each of the pipe guides at a point spaced from the threaded connection between the guide and bar end. All of the threaded connections are pressure tight and the interior of each pipe guide is maintained at a pressure above atmospheric pressure. The pressure is monitored and a predetermined decrease in pressure activates an alarm. A safety mechanism is attached to the conveyance and includes a safety device operative to grip the pipe guide in response to a slack hoist rope.

Abstract: The invention relates to a device which is installed on a platform at the second layer of the existing headframe, can grab and arrange pipes automatically and conveniently, and comprises a pipe arranging device, an electric control component and a hydraulic power unit. The pipe arranging device is formed by a plurality of subcomponents, namely a main parallelogram mechanism, a pipe control mechanism and an angular rotation device, wherein the parallelogram mechanism is taken as a main loading platform, and used for placing drilling rods in the position of a borehole or grabbing the drilling rods from the position of the drilling rod; the pipe control mechanism is used for lifting the drilling rods and comprises a power clamp used for clamping the drilling rods; and the angular rotation device is installed on a movable platform to complete 180-degree rotation and is used for rotating the pipe facing to the platform at the second layer to face to the direction of the borehole or to face to the direction of the platform at the second layer from facing to the direction of the borehole. The device can be installed on the headframe conveniently, thus improving the automation level of operation to a great extent, improving the operation efficiency, and reducing the work intensity and danger of operators.