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 tie rod torque system comprising:
- a collar assembly including a first collar and a plurality of fasteners extending through respective threaded holes of the first collar;
- and
- a hydraulic hammer assembly, the hydraulic hammer assembly including:
- a body,
- a plurality of tie rods running in a length-wise direction of the body at respective corner portions of the body, each of the tie rods including at a proximal end portion thereof:
- a first threaded portion having a first diameter,
- a second threaded portion having a second diameter, and
- a first non-threaded portion between the first threaded portion and the second threaded portion, the first non-threaded portion having a diameter less than the first diameter and the second diameter, and
- a plurality of second collars threadedly connected to the second threaded portion of respective ones of the tie rods,
- wherein the first collar is configured to be removably threadedly connected individually to the first threaded portion of each of the tie rods, and
- wherein the fasteners of the collar assembly abut an upper surface of the body of the hydraulic hammer assembly under a condition that the first collar is removably threadedly coupled to the first threaded portion of any one of the tie rods.
A tie rod torque system comprising:
- a collar assembly including a first collar and a plurality cif fasteners extending through respective threaded holes of the first collar;
- and
- a hydraulic hammer assembly, the hydraulic hammer assembly including:
- a body,
- a plurality of tie rods running in a length-wise direction of the body at respective corner portions of the body, each of the tie rods including at a proximal end portion thereof:
- a first threaded portion having a first diameter,
- a second threaded portion having a second diameter, and
- a first non-threaded portion between the first threaded portion and the second threaded portion, the first non-threaded portion having a diameter less than the first diameter and the second diameter, and
- a plurality of second collars threadedly connected to the second threaded portion of respective ones of the tie rods,
- wherein the first collar is configured to be removably threadedly connected individually to the first threaded portion of each of the tie rods,
- wherein threading of the first threaded portion is different in form compared to threading of the second threaded portion, and
- wherein the collar assembly abuts an upper surface of the body of the hydraulic hammer assembly under a condition that the first collar is removably threadedly coupled to the first threaded portion of any one of the tie rods.
Dependencies are inferred from the claim text.