Pipeline inspection device with enhanced image control
摘要
說明書
The hub 30 also includes various other mating members that help align and support the hub 30 within the drum 34. The cavity 198 of the hub 30 includes at least one protrusion 230 that is shaped to align with the recesses 158 on the core 138 of the mounting assembly 118. For example, the hub 30 includes a square protrusion 230 that is received within the square recess 158 on the face 162 of the core 138. The protrusion 230 defines a pocket that receives the sensor 150 for monitoring movement of the magnets 146 to help determined the amount of cable 14 that has been extended from the drum 34. In some embodiments, the core 138 and the hub 30 may include more or fewer recesses 158 and protrusions 230, respectively, to help align the hub 30 with the drum 34. In the illustrated embodiment, the hub 30 also includes a rim 234 that extends around the perimeter of the cylindrical body 182 for mating with the opening 58 of the drum 34. When the hub 30 is received within the drum 34, the rim 234 engages with the edge of the opening 58 to help align the hub 30 relative to the drum 34. In the illustrated embodiment, the rim 234 further includes a hook 238 to help grip the edge of the opening 58 in the drum 34. In the illustrated embodiment, the hook 238 is arcuate and extends along a bottom edge of the rim 234.
