Systems and methods for assembling a hammer tool
AssigneeCaterpillar Inc.
InventorCody Moore
Life of this patent
Estimating the term…
Abstract
Systems and methods can include stretching a stud of a hammer assembly by tightening, according to a preset amount, a plurality of fasteners, which can extend from a first end surface and/or a second end surface of a first nut threadedly coupled to the stud, against an upper surface of a body of the hammer assembly. The fasteners and the first nut can provide a clamping load for the stud upon completion of the tightening. The systems and methods can also include, after the stretching, tightening a second nut, which can be threadedly connected to the stud, toward a seat formed in the body of the hammer assembly; and further tightening the second nut, against the seat. The systems and methods can further include transferring the clamping load from the fasteners and first nut to the second nut.
Claims11
A method comprising:
- threading a collar assembly, which includes a first collar and a plurality of fasteners extending through respective threaded holes of the first collar, onto a first threaded portion of a tie rod such that the collar assembly directly contacts an upper surface of the body of a hammer assembly;
- tightening the fasteners to press against the upper surface of the body of the hammer assembly to stretch the tie rod and move a second collar, which is threaded onto a second threaded portion of the tie rod, away from a ledge inside the body of the hammer assembly by a predetermined distance;
- after said tightening the fasteners, hand-tightening the second collar to be in direct contact with the ledge formed inside the body of the hammer assembly and such that a portion of the body of the hammer assembly is around an outer sidewall of the second collar;
- and
- after said hand-tightening the second collar to be in direct contact with the ledge formed inside the body of the hammer assembly, further tightening the second collar against the ledge using a tightening tool.
A method comprising:
- stretching a stud of a hammer assembly by tightening, according to a preset amount, a plurality of jack bolts, which extend from a first end surface of a first nut threadedly coupled to the stud, against an upper surface of a body of the hammer assembly, the jack bolts and first nut providing a clamping load for the stud upon completion of said stretching;
- after said stretching, tightening a second nut, which is threadedly connected to the stud, toward a seat formed in the body of the hammer assembly;
- further tightening the second nut, against the seat, using a tightening tool;
- and
- transferring the clamping load from the jack bolts and first nut to the second nut.
Dependencies are inferred from the claim text.