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 ?
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.
The lead screw pushes down on the drive rod, which is actually a complex machined plastic plunger.
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.
That takes pressure off the spring and prevents the drive rod from springing out of the receiver and spearing you.
The drive rod seal has three internal wiper blades that seal the circumference of the drive rod," he says.