A one-piece striking mechanism body uses distinct heat treatments on impact and lateral surfaces to boost material hardness.
Angular single-stage gear eliminates intermediate shaft to reduce weight and mounting space while maintaining drilling power.
Spring-loaded pins select hammer piston strokes in rock drills, eliminating manual tool requirements.
An elastically deformable piston absorbs lateral pressure in a vibration hammer, preventing structural damage while hydraulic valves drive the striking unit.
An autonomous drilling control system continuously adjusts operational parameters using real-time downhole sensing and embedded machine learning predictions.
Piston-type movable components compress elastomeric seals against conductors, resolving power failure risks from hot spots in oil and gas wells.
Radial branches in the communication path reduce flow resistance and weight while maintaining striking efficiency.
A jet hammer generates rotational force via fluid nozzles to drive impact strokes.
Spindle run-off portions enable hammer nesting to shorten axial tool length without sacrificing impact force or increasing structural complexity.
A pressure reversing valve uses asymmetric feeding to stabilize piston operation in fluid-actuated percussive drilling tools.
A reel receives slack feed rope during mast retraction to keep the line secure.
An air trap arrangement traps gas to form a cushion that absorbs impact forces and simplifies assembly alignment.
Dual pistons in a hydraulic hammering device convert reflected energy into heat via throttled leakage, reducing damage to transmission members.
A hydraulic hammer pressure valve remains active during piston buffer penetration to prevent unintended shutdown.
Punching holes in a metal strip before cold-forming creates ventilation openings with rounded edges, eliminating deburring steps that damage gaskets.
A radial groove with variable depth adjusts annular seal contact pressure, reducing friction and wear during reciprocating hammer drill operation.