Bidimensional orientating device for coal mine underground roadway
An underground roadway and orientation technology, applied in the field of instruments, can solve problems such as the inability to give a timely and accurate design orientation, and achieve the effect of avoiding the excavation of waste roadways.
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[0010] First follow figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 with Figure 7 As shown, the longitude and latitude spherical shell 1 is made of transparent glass, and the longitude value 2 and the latitude value 3 are engraved; the rotatable shell 4 is made of a 2mm iron plate, and a meridian slot 5 is dug out of the iron plate of the rotatable shell 4 Simultaneously, four positioning holes are made in the rotatable shell 4, allowing two connecting plates 12 to change positions; the screw pointer 6 is made of ordinary carbon steel and threaded at the position of the rod, and the control nut 7 is purchased from the market with the screw pointer 6 matching nuts; the control handle 8 and the control plate 9 are made of ordinary carbon steel plates, and the spacer ball 10 buys 3mm steel balls from the market; Adjust connecting rod 13 to make with common carbon steel, and adjusting nut 14 is purchased from the market, and level ball 15 is purchased the...
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