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US 6,783,090 B2Granted
Bearing shear block
AssigneeDiamond Z Manufacturing
InventorMelvin A. Zehr
Life of this patent
Estimating the term…
Abstract
An improved hammermill assembly utilizing shear bolts and shear plates designed to break upon extreme loads exerted upon the hammermill assembly, thereby reducing the occurrence of damage to the hammermill assembly or attached equipment.
Claims23
A breakaway bearing mount comprising:
- a frame having at least one receiving hole for receiving a shearing device therein;
- a lower shear plate defining at least one shear plate shearing device hole adapted to receive one or more shearing devices, said shearing devices having a shear strength, with said lower shear plate attached to said frame by said one or more shearing devices and said lower shear plate attached to a bearing assembly;
- a bearing assembly enclosing a rotatable shaft, said bearing assembly including said one or more bearing assembly connectors, said bearing assembly configured for mounting to said lower shear plate through one or more bearing assembly connectors having a shear strength greater than said shear strength of the shearing device;
- wherein the one or more shearing devices are configured to break before the bearing assembly connector when the shaft is subjected to a predetermined minimum stress.
1 more element
A combination comprising:
- a rotatable shaft, said shaft having a first shaft end and a second shaft end;
- a frame;
- a first shear plate mounted to said frame through use of at least one plate shear bolt;
- a second shear plate mounted to said frame through use of at least one plate shear bolt;
- a first bearing assembly mounted to said first shear plate through use of at least one bearing shear bolt, said first bearing assembly rotatably supporting said first shaft end;
- and
- a second bearing assembly mounted to said second shear plate through use of at least one shear bearing bolt, said second bearing assembly rotatably supporting said second shaft end;
- wherein
- said plate shear bolts are configured to a lesser shear strength rating than said bearing shear bolts, and in which said plate shear bolts are configured to break prior to the bearing shear bolts when subjected to a shearing force.
6 more elements
A bearing assembly for use with a rotatable shaft, said bearing assembly comprising:
- a shear plate mounted to a frame through use of at least one plate shear bolt;
- a bearing mounted to said shear plate through use of at least one bearing shear bolt with a bolt head, said bearing rotatably supporting said shaft;
- wherein
- said at least one shear plate bolt is configured to a lesser shear strength than said at least one bearing shear bolt, and said at least one plate bolt is configured to break before said at least one bearing shear boll when subjected to a shear force.
1 more element
A breakaway bearing assembly, for supporting a shaft and a hammermill, comprising:
- a shaft, said shaft having a first shaft end and a second shaft end;
- a frame defining at least two frame bolt holes for receiving at least one frame shear bolt from a first lower shear plate and at least one frame shear bolt from a second lower shear plate;
- a first and second lower shear plate with each defining at least one first shear bolt hole, wherein said first and second lower shear plates are configured for attachment to said frame through use of said frame shear bolts extending into said frame bolt holes and said lower shear plate bolt hole, with said first and second lower shear plates each further defining at least one upper shear plate bolt hole, each for receiving a second shear bolt;
- a first and a second upper shear plate each defining at least one second shear bolt hole wherein said first and second upper shear plates are configured for mounting to said respective first and second lower shear plates through use of said second shear bolts extending through said first and second lower and upper shear bolt holes and connecting said respective first and second upper and lower shear plates with at least one second shear bolt, said first and second upper shear plates further defining a plurality of bearing bolt holes;
- a first bearing assembly defining a plurality of bearing assembly bolt holes, said first bearing assembly configured for mounting to said first upper shear plate using a plurality of bearing assembly bolts extending through said bearing assembly bolt holes and said bearing bolt holes, said first bearing assembly rotatably supporting the first shaft end;
- and
- a second bearing assembly defining a plurality of bearing assembly bolt holes, said second bearing assembly configured for mounting to said second upper shear plate using a plurality of bearing assembly bolts extending through said bearing assembly bolt holes and said bearing bolt holes, said second bearing assembly rotatably supporting the second shaft end;
- wherein
- each of said frame shear bolts and said second shear bolts are configured to a lower shear rating that said bearing assembly bolts and thus said frame shear bolts and said second shear bolts are configured to break before said bearing assembly bolts when said shaft is subjected to a predetermined minimum stress.
6 more elements
A breakaway bearing assembly, for supporting a shaft and a hammermill, comprising:
- a shaft, said shaft having a first shaft end and a second shaft end;
- a frame defining at least two frame bolt holes for receiving at least one frame shear bolt from a first lower shear plate and at least one frame shear bolt from a second lower shear plate;
- a first and second lower shear plate with each defining at least one first shear bolt hole, wherein said first and second lower shear plates are configured for attachment to said frame through use of said frame shear bolts extending into said frame bolt holes and said lower shear plate bolt hole, with said first and second lower shear plates each further defining at least one bearing bolt holes, each for receiving a bearing bolt;
- a first bearing assembly defining a plurality of bearing assembly bolt holes, said first bearing assembly configured for mounting to said first lower shear plate using a plurality of bearing assembly bolts extending through said bearing assembly bolt holes and said bearing bolt holes, said first bearing assembly rotatably supporting the first shaft end;
- and
- a second bearing assembly defining a plurality of bearing assembly bolt holes, said second bearing assembly configured for mounting to said second lower shear plate using a plurality of bearing assembly bolts extending through said bearing assembly bolt holes and said bearing bolt holes, said second bearing assembly rotatably supporting the second shaft end;
- wherein
- each of said frame shear bolts are configured to a lower shear rating that said bearing assembly bolts and thus said frame shear bolts and said second shear bolts are configured to break before said bearing assembly bolts when said shaft is subjected to a predetermined minimum stress.
5 more elements
A breakaway bearing mount comprising:
- a frame having at least one receiving hole for receiving a shearing device therein;
- a lower shear plate defining at least one shearing device hole adapted to receive one or more shear bolts, said shear bolts having a shear strength, and used with a corresponding nut, with said lower shear plate attached to said frame by said one or more shear bolts and said lower shear plate attached to a bearing assembly;
- a bearing assembly enclosing a rotatable shaft, said bearing assembly including one or more bearing bolts, said bearing bolts configured for mounting to said lower shear plate and a shear strength greater than said shear strength of the shear bolts;
- wherein the one or more shear bolts are configured to break before the bearing bolts when the shaft is subjected to a predetermined minimum stress.
1 more element
Dependencies are inferred from the claim text.