Handling system for ground-engaging wear parts secured to earth working equipment

Patent metadata

Field	Value
Publication number	US-10988916-B2
Application number	US-201715621921-A
Country	US
Kind code	B2
Filing date	Jun 13, 2017
Priority date	Jun 13, 2016
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

A handling system for handling ground-engaging wear parts used on earth working equipment includes handling tools to remove and handle wear parts from equipment and/or to install new wear parts. The tools can include a torque or other tool to engage and/or disengage a lock retained by the wear member. The handling system allows an operator maintain a distance from heavy parts being removed or installed, reducing the risk of injury.

First claim

The invention claimed is:

1. A handling system for ground-engaging wear parts for earth working equipment, the handling system comprising:
a plurality of discrete handling tools each including a gripping assembly to grip and release a first or second wear part, wherein the gripping assembly of each of the handling tools includes a pair of movable arms and at least one actuator to selectively move the arms to grip and release the first or second wear part, wherein the gripping assembly of a first of the handling tools is suited to grip the first wear part and the gripping assembly of a second of the handling tools is suited to grip the second wear part, and wherein the second wear part is different than the first wear part;
a manipulator having a connector to separately engage and move each of the handling tools to engage a wear part for installing and/or removing the first or second wear part onto or from a base of the earth working equipment; and
a controller to control the movements of the manipulator and the handling tools.

2. The handling system of claim 1 wherein the gripping assembly of one of the handling tools engages a nose of the wear part.

3. The handling system of claim 1 wherein the manipulator includes a three-axis joint supporting the handling tool wherein the three axes are spaced apart and arranged seriatim to each other.

4. The handling system of claim 3 including a hydraulic drive to power the handling tool and the manipulator.

5. The handling system of claim 1 wherein at least one of the handling tools includes a lock release device movable to contact and release a lock securing the wear part to the base.

6. The handling system of claim 5 wherein the lock release device includes a rotary drive to turn a threaded component in the lock.

7. A handling system of claim 1 wherein the gripping assembly for each of the handling tools includes a support to engage a front end of the wear part.

8. The handling system of claim 1 wherein the second wear part has a different size than the first wear part.

9. The handling system of claim 1 wherein the second wear part has a different design than the first wear part.

10. A handling system for ground-engaging wear parts for earth working equipment, the handling system comprising:
a handling tool including bearing surfaces for engaging a nose on the wear part and a support for engaging and releasing a lock opening in the nose to hold the wear member, and a lock release device movable to contact and release a lock securing the wear part to the base, the lock release device including a rotary drive to turn a threaded component in the lock;
a manipulator to support and move the handling tool to engage the wear part, and install and/or remove the wear part onto or from a base; and
a controller to control the movements of the handling tool and the manipulator.

11. The handling system of claim 10 wherein the manipulator includes a three-axis joint supporting the handling tool wherein the three axes are spaced apart and arranged seriatim to each other.

12. The handling system of claim 11 including a hydraulic drive to power the handling tool and the manipulator.

13. The handling system of claim 10 including a second handling tool fora second wear part of a different style, the second handling tool including a gripping assembly for gripping and releasing the second wear part.

14. The handling system of claim 13 wherein the manipulator includes a connector to alternatively engage each of the handling tools.

15. The handling system of claim 13 wherein the two handling tools are joined to a single chassis capable of moving the handling tools alternatively into position to engage a wear part.

16. A handling system for ground-engaging wear parts for earth working equipment, the handling system comprising:
a manually-operated manipulator incorporating an operator force multiplier; and
a handling tool connected to the manipulator and having a gripping assembly to hold and release a wear part for removal and/or installation of the wear part from and/or onto earth working equipment, the gripping assembly including a pair of movable arms, and at least one actuator to selectively move the arms to grip and release the wear part;
wherein the manipulator is a crane with a tool balancer.

17. The handling system of claim 16 wherein the handling tool includes a support to engage the wear part.

18. The handling system of claim 16 including a plurality of discrete handling tools, wherein the manipulator includes a connector to separately engage and move each of the handling tools to engage a wear part.

Assignees

• Esco Corp
• Esco Group Llc

Inventors

• Paul David M
• Clarke Rodney K
• Carpenter Christopher M
• Cowgill Noah D
• Finley Taylor M
• Carpenter Ryan J

Classifications

• E02F9/2891 Primary

  Tools for assembling or disassembling · CPC title

• E02F9/2883

  Wear elements for buckets or implements in general · CPC title

• E02F9/24 Primary

  Safety devices {, e.g. for preventing overload (E02F9/226 takes precedence)} · CPC title

• E02F9/2037

  Coordinating the movements of the implement and of the frame · CPC title

• E02F9/2833

  Retaining means, e.g. pins · CPC title