Hydraulic impact device

Details Hydraulic impact device Hydraulic impact device

1982-10-19

1986-03-18

Schran, Donald R.

Tool driving or impacting

Impacting devices

With means for rotating tool

173DIG3, 192 67R, B23B 4516

Patent

active

045762406

ABSTRACT:
A hydraulically powered impact device for rock drilling having an impact piston driven by a hydraulic drive unit and a shank rod adapted to be struck by the impact piston. A motor imparts a rotary motion to the shank rod by rotating a sleeve through a gear train. The sleeve is rotatably mounted around the shank rod. A chuck is splined to the shank rod and a dog clutch is provided between the sleeve and the chuck for engaging both. A fluid passage is formed for introducing lubricant fluid stored in a gear casing into a chamber accommodating the dog clutch. The fluid passages includes a valve which is held open as long as the cover is connected to the main casing.

REFERENCES:
patent: 2979161 (1961-04-01), Lyden
patent: 3146811 (1964-09-01), Shryock
patent: 3837409 (1974-09-01), Consoli et al.
patent: 3921731 (1975-11-01), Ekwall et al.
patent: 3934629 (1976-01-01), Boman
patent: 4159050 (1979-06-01), Hopkins, Sr. et al.
patent: 4206820 (1980-06-01), Bailey et al.

Affiliated with

Also associated with

Rating

Hydraulic impact device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hydraulic impact device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulic impact device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2301159