Rods for engaging a tool of a hammer within a housing of the hammer

Patent metadata

Field	Value
Publication number	US-12534871-B2
Application number	US-202217937217-A
Country	US
Kind code	B2
Filing date	Sep 30, 2022
Priority date	Sep 30, 2022
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

A hydraulic hammer includes a housing configured to receive a housing portion of a tool and a first plurality of rods provided in the housing. The first plurality of rods are configured to engage a first portion of the housing portion of the tool. The first plurality of rods are parallel to a longitudinal axis of the tool. The hydraulic hammer further includes a second plurality of rods provided in the housing. The second plurality of rods are configured to engage a second portion of the housing portion of the tool. The second plurality of rods are parallel to the longitudinal axis of the tool.

First claim

What is claimed is:

1 . A hydraulic hammer, comprising:
a housing configured to receive a housing portion of a tool; a first plurality of rods provided in the housing,
wherein the first plurality of rods are configured to engage a first portion of the housing portion of the tool, and
wherein the first plurality of rods are parallel to a longitudinal axis of the tool;
a second plurality of rods provided in the housing,
wherein the second plurality of rods are configured to engage a second portion of the housing portion of the tool, and
wherein the second plurality of rods are parallel to the longitudinal axis of the tool; and
a tool stop member, between the first plurality of rods and the second plurality of rods, configured to limit a movement of the tool, along the longitudinal axis, in a direction towards the first plurality of rods.

2 . The hydraulic hammer of claim 1 ,
wherein a quantity of the first plurality of rods is equal to a quantity of the second plurality of rods.

3 . The hydraulic hammer of claim 1 ,
wherein a length of a first rod, of the first plurality of rods, is equal to a length of a second rod of the first plurality of rods, and
wherein a width of the first rod is equal to a width of the second rod.

4 . The hydraulic hammer of claim 1 ,
wherein the first portion of the housing portion of the tool includes a first plurality of grooves,
wherein the second portion of the housing portion of the tool includes a second plurality of grooves,
wherein one or more rods, of the first plurality of rods, are configured to engage with corresponding one or more grooves of the first plurality of grooves, and
wherein one or more rods, of the second plurality of rods, are configured to engage with corresponding one or more grooves of the second plurality of grooves.

5 . The hydraulic hammer of claim 1 ,
wherein a length of a first rod, of the first plurality of rods, is equal to a length of a second rod of the second plurality of rods, and
wherein a width of the first rod is equal to a width of the second rod.

6 . The hydraulic hammer of claim 1 ,
wherein the first plurality of rods are rotatably provided in the housing, and
wherein one or more rods, of the first plurality of rods, are configured to rotate during the movement of the tool.

7 . The hydraulic hammer of claim 1 ,
wherein a first rod, of the first plurality of rods, is longitudinally aligned with a second rod of the second plurality of rods.

8 . A machine, comprising:
a machine body; a boom supported by the machine body; a stick mounted to the boom; and a hydraulic hammer mounted to the stick, wherein the hydraulic hammer comprises:
a housing configured to receive a tool,
a first plurality of rods provided in the housing and parallel to a longitudinal axis of the tool,
wherein the first plurality of rods are configured to engage a first portion of the tool,

a second plurality of rods provided in the housing and parallel to the longitudinal axis,
wherein the second plurality of rods are configured to engage a second portion of the tool, and

a tool stop member, between the first plurality of rods and the second plurality of rods, configured to limit a movement of the tool, along the longitudinal axis, in a direction towards the first plurality of rods.

9 . The machine of claim 8 ,
wherein the first portion of the tool includes a first plurality of grooves,
wherein the second portion of the tool includes a second plurality of grooves,
wherein a quantity of the first plurality of grooves is equal to a quantity of the first plurality of rods, and
wherein a quantity of the second plurality of grooves is equal to a quantity of the second plurality of rods.

10 . The machine of claim 9 ,
wherein each rod, of the first plurality of rods, is configured to engage with a corresponding one of the first plurality of grooves, and
wherein each rod, of the second plurality of rods, is configured to engage with a corresponding one of the second plurality of grooves.

11 . The machine of claim 8 ,
wherein a length of a first rod, of the first plurality of rods, is equal to a length of a second rod of the first plurality of rods,
wherein a width of the first rod is equal to a width the second rod, and
wherein a shape of the first rod is same as a shape of the second rod.

12 . The machine of claim 8 ,
wherein a length of a first rod, of the first plurality of rods, is equal to a length of a second rod of the second plurality of rods,
wherein a width of the first rod is equal to a width the second rod, and
wherein a shape of the first rod is same as a shape of the second rod.

13 . The machine of claim 8 ,
wherein the second plurality of rods are rotatably provided in the housing, and
wherein one or more rods, of the second plurality of rods, are configured to rotate during the movement of the tool.

14 . The machine of claim 8 ,
wherein a first rod, of the first plurality of rods, is longitudinally aligned with a second rod of the second plurality of rods.

15 . A housing of a hammer of a machine, the housing comprising:
a first plurality of rods,
wherein the first plurality of rods are configured to engage a first portion of a housing portion of a tool, and wherein the first plurality of rods are parallel to a longitudinal axis of the tool;
a second plurality of rods,
wherein the second plurality of rods are configured to engage a second portion of the housing portion of the tool, wherein the second plurality of rods are parallel to the longitudinal axis, and wherein the second portion is below the first portion; and
a tool stop member, between the first plurality of rods and the second plurality of rods, configured to limit a movement of the tool, along the longitudinal axis, in a direction towards the first plurality of rods.

16 . The housing of claim 15 ,
wherein the first plurality of rods are rotatably provided in the housing,
wherein the second plurality of rods are rotatably provided in the housing, and
wherein one or more rods, of at least one of the first plurality of rods or the second plurality of rods, are configured to rotate during the movement of the tool.

17 . The housing of claim 15 ,
wherein a size of a first rod, of the first plurality of rods, is equal to at least one of a size of a second rod of the first plurality of rods or a size of a third rod of the first plurality of rods.

18 . The housing of claim 15 ,
wherein the first portion of the housing portion of the tool includes a first plurality of grooves,
wherein the second portion of the housing portion of the tool includes a second plurality of grooves,
wherein each rod, of the first plurality of rods, is configured to engage with a corresponding one of the first plurality of grooves, and
wherein each rod, of the second plurality of rods, is configured to engage with a corresponding one of the second plurality of grooves.

19 . The housing of claim 15 ,
wherein a first rod, of the first plurality of rods, is longitudinally aligned with a second rod of the second plurality of rods.

20 . The housing of claim 15 ,
wherein each rod, of at least one of the first plurality of rods or the second plurality of rods, is individually replaceable.

Assignees

• Caterpillar Inc

Inventors

• Moore Cody

Classifications

• B25D2250/121

  Housing details · CPC title

• B25D17/06

  Hammer pistons; Anvils {; Guide-sleeves for pistons} · CPC title

• B25D9/12

  comprising a built-in liquid motor {, i.e. the tool being driven by hydraulic pressure} · CPC title

• B25D9/04

  of the hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member · CPC title

• E02F3/966 Primary

  of hammer-type tools (arrangements for breaking-up hard ground E02F5/305; percussion -type rippers E02F5/323) · CPC title