drive rod

drive rod

[′drīv ‚räd]
(engineering)
Hollow shaft in the swivel head of a diamond-drill machine through which energy is transmitted from the drill motor to the drill string. Also known as drive spindle.
References in periodicals archive ?
Our cousin Bulek was kind enough to drive Rod, accompanied by Nanay and Tatay, to PGH from Gulod.
The reamer drive rod is inserted down the bore and the pull through reamer is screwed on to it.
In the actual structure, the cross-sectional area of the drive rod is larger to ensure its rigidity, while the cross-sectional area of the intermediate link is smaller to reduce its mass.
The driver features a dual handle for balance and ergonomic gripping, a heavy-duty drive rod for high-quality splices, and pneumatic driving power for a robust installation.
The thought of placing a drive rod down the bore and setting the bullet deep into the mostly-chambered cartridge gave me grave thoughts of what might happen if the round went off.
In addition, innovative damping, which is directly integrated in the drive rod, allows short cycle times and a much longer admissible finger length.
This system does not require an inner drive rod through the drill stem that restricts flow and needs regular maintenance.
A month after his death his pals completed the Land's End to John O'Groats fundraising drive Rod had planned raising pounds 5,000 in his memory for Ty Hafan.
The canted coil spring design can apply consistent pressure around a drive rod for effective sealing without introducing much friction.
Deltec turned to the Hollis, New Hampshire-based company to produce a part that would be critical in the Deltec Cozmo Pump's ultimate success: a lead screw and nut (what Deltec describes as a "drive rod") that would compress the syringe to inject the insulin.
To ensure maximum service life the steel piston drive rod was ground, hard chrome-plated then polished to minimise wear where the rod passed through the composite seals at each end of the cylinder.
However, four miles off the Devon coast, a drive rod powering one of the Waverley's 20-foot paddles fractured.