Bolt on drive assembly for a core drill with high strength spoked reinforcer

摘要

A bolt on drive assembly for a core drill which utilizes an improved high strength spoked reinforcer mounted beneath a disc. The disc and high strength spoke reinforcer are removably mounted on the tube by bolt fasteners. A drive connection is removably mounted and centrally located on a outer disc of the pair of discs. The drive connection is adapted to connect with a drive shaft to cause rotation of the tube. The system can also include a split in the disc when the high strength spoked reinforcer is not welded thereto thereby providing a means of water control. The high strength spoked reinforcer can be a separate piece that is bolted to the disc or can be integrally formed as one piece therewith. An adapter is provided that allows for standard drilling that fits into a recess in the center hub and is removable to expose the recess for attachment to a specialized drill motor, such as an A-flange.

主权项

1. A bolt on drive assembly for a core drill comprising:
a cylindrical tube having a cutting edge at one longitudinal end and an open end at an opposite longitudinal end; a mounting means mounted at said open end; a high strength spoked reinforcer, said spoked reinforcer having a center hub from which extends a plurality of spoked members, said spoked members having a strengthening member extending perpendicularly therefrom in the direction of the Z-axis and wherein said spoked members are attached to said mounting means wherein said center hub has a recessed portion that is substantially circular in shape on a side spaced apart from said spoked members; a disc mounted onto said high strength spoked reinforcer and also onto said mounting means wherein said disc includes a center aperture corresponding to said recessed portion in said center hub; a drive connection centrally mounted on said disc, said drive connection adapted to connect to a drive shaft to cause rotation of said tube; a series of removable fasteners to secure said disc and said high strength spoked reinforcer to said mounting means such that the one longitudinal end is spaced longitudinally from the high strength spoked reinforcer; and wherein the recessed portion includes a plurality of slots in a periphery of the recessed portion.