Automatic lubricating device for the chisel of a hydraulic strik

Details Automatic lubricating device for the chisel of a hydraulic strik Automatic lubricating device for the chisel of a hydraulic strik

1990-12-03

1991-10-29

Lazarus, Ira S.

Lubrication

Systems

Machine tools

184 64, 184 74, 184 29, 184 391, 60456, F01M 902

Patent

active

050607618

ABSTRACT:
An automatic lubricating arrangement for a chisel of a hydraulic striking mechanism. A conveying unit is adapted for connection to the chisel guide supporting the chisel of the striking mechanism for charging the chisel guide with lubricating grease and is further connected to the source of operating pressure for the striking mechanism. The conveying unit includes a conveying chamber for receiving lubricating grease and a mechanism for performing a predetermined conveying stroke of adjustable magnitude each time the striking mechanism is charged with operating pressure for forcing lubricating grease out of the chamber and into the chisel guide under pressure derived from the source of operating pressure. A lubricant reservoir for storing lubricating grease is connected to the conveying unit and has a movable separating element and compression spring biasing the separating element against the lubricating grease for supplying lubricating grease to the conveying chamber of the conveying unit.

REFERENCES:
patent: 1992052 (1935-02-01), Bizzarri
patent: 2351620 (1944-06-01), Kocher
patent: 2459937 (1949-01-01), Hassman et al.
patent: 3608672 (1971-09-01), Dandridge
patent: 3693757 (1972-09-01), Callahan et al.
patent: 4047595 (1977-09-01), Baker, Jr.
patent: 4219963 (1980-09-01), Mallett
patent: 4646854 (1987-03-01), Arndt et al.

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