IF THE BOLT IS CUT

IF THE BOLT IS CUTIt happens that some of the most common types of fastening parts — bolt weakened, cannot withstand the load: the bolt is cut, the remaining upper portion in one part and lower in another. And if the top part of it to extract just enough to work the key, to turn the lower is usually the problem. For this you have to drill a hole in it, then tap to cut a left hand thread to screw in there another bolt or pin and then use that to Unscrew the stuck “stub”.

 
This is often the drilling has to be done manually, using the so-called “ratchet”. Innovator of the mine office Voroshilovgradsky N. Seagull has found a way to mechanize this operation, the developing device on the basis of the drill. The device consists of a worm gear whose worm wheel shaft has a form that allows to insert it into the Chuck of a drill. The torque is transmitted to the second worm mounted on a shaft with a cone, designed for mounting in the drill of the required diameter. The required force for axial feed of a drill in the cone is achieved by mechanical means: unscrewing screw M24 abutting any nearest ledge. This attachment to the drill increases production, reduces labor intensity of the operation and accelerate the repair works.
 
Prefixed to drill
 
Attachment to the drill:
 
1 — reducer, 2 — worm wheel, 3 shaft, is inserted in the drill, a 4 second worm, 5 — Wai with cone, 6 — stop screw.

Recommend to read

  • OUTFIT FOR LIGHTOUTFIT FOR LIGHT
    Perhaps the desire to dress up the light source comes from the primitive worship of the miracle of fire. Even the torch could just be stuck in a split stick, and you can revive the...
  • MOPED AT ANY AGEMOPED AT ANY AGE
    Conceiving the design of the moped, I set a goal to make it easy to operate for the driver any age. This moped I have and get: easy to control on the road and on the dirt road, with...