Cutlery
Patent
1975-09-10
1977-09-06
Bertsch, Richard A.
Cutlery
175 17, 175337, F16C 3700
Patent
active
040464318
ABSTRACT:
A bearing assembly for a rotary drilling tool for a continuous mining machine includes inner and outer races having respective annular bearing surfaces and an annular channel formed between the races for water lubrication and cooling of roller bearing members positioned within the channel. A pump supplies pressurized flow through the channel sufficient to lubricate the bearing and to prevent feedback of rock particles. A transfer passageway drains the water from the bearing assembly and feeds it to the tool to cool the cutter teeth and to allay the fine respirable dust which is potential health hazard to the mine workers. The rollers of the bearing each include an annular notch to form a portion of the flow channel. The notches occupy approximately fifteen percent of the cross-sectional area. Elastic ring support for the outer race absorbs a major portion of the drilling stress from the tool. Rotary water seals and wipers beside the bearings form a rotary water-tight joint. The bearing assembly maintains the concentric position of the fixed and rotary elements of the seals and wipers.
REFERENCES:
patent: 2037967 (1936-04-01), Costa
patent: 2050988 (1936-08-01), Zublin
patent: 3921735 (1975-11-01), Dysart
Bertsch Richard A.
Gardiner Donald A.
Lack Thomas
The United States of America as represented by the Secretary of
LandOfFree
Water lubricated bearing assembly for mining machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Water lubricated bearing assembly for mining machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Water lubricated bearing assembly for mining machine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2159830