Counterweight system for an industrial machine

• US 10,106,956 B2
• Filed: 06/15/2017
• Issued: 10/23/2018
• Est. Priority Date: 04/03/2012
• Status: Active Grant

• Current Assignee: Joy Global Surface Mining Inc. (Mitsui & Company Limited)
• Original Assignee: Joy Global Surface Mining Inc. (Mitsui & Company Limited)
• Inventors: Colwell, Joseph, Hutsick, James, Schlegel, Daniel, Larson, Christopher T.
• Primary Examiner(s): Troutman, Matthew D.
• Application Number:
  US15/624,101
• Publication Number:
  US 20170284061A1
• Time in Patent Office: 495 Days
• Field of Search: 414719
• CPC Class Codes: E02F 9/18 Counterweights for cranes B66C23/72, for tractors B62D49/085

Abstract

A counterweight system for an industrial machine includes a body having a front end and a back end, the body defining a cavity, and a plurality of walls defining a plurality of discrete sections within the body, each discrete section having an aperture for inserting a counterweight into the cavity.

Claims

1. A mining machine comprising:

a base having a first end and a second, opposite end;

drive tracks coupled to the base;

a boom coupled to the base and extending from the first end of the base;

a handle coupled to the boom;

a dipper coupled to the handle; and

a counterweight system coupled to the second end of the base, the counterweight system having;

a body having a top wall, a bottom wall, a first side wall, a second side wall, and a plurality of internal walls disposed between the first side wall and the second side wall, each internal wall extending in a direction from the top wall to the bottom wall, wherein the internal walls and the first and second side walls define a plurality of internal sections; and

a plurality of counterweight slabs, each counterweight slab sized to fit entirely within one of the internal sections by inserting the counterweight slab laterally along a direction toward the first end of the base;

wherein the body has a back wall that defines a first, closed end of the body, wherein the body includes a second, opposite open end for providing access to the internal sections, wherein each counterweight slab is sized to fit entirely within one of the internal sections by inserting the counterweight slab laterally into the second, open end and toward the first, closed end, wherein the body has a plurality of intermediate walls spaced from the back wall and disposed between the first, closed end and the second, opposite end, and wherein the intermediate walls define back ends of the internal sections.

2. The mining machine of claim 1, wherein each of the intermediate walls extends parallel to the back wall.

3. The mining machine of claim 1, wherein at least one of the intermediate walls includes a cut-out region.

4. The mining machine of claim 1, wherein each of the internal sections has an identical size.

5. The mining machine of claim 1, wherein one of the internal sections has a size that is different than another one of the internal sections.

6. The mining machine of claim 1, wherein each of the plurality of counterweight slabs is a steel slab.

7. The mining machine of claim 1, wherein each of the plurality of counterweights slabs is rectangular, and has a thickness of approximately 7 inches.

8. The mining machine of claim 1, wherein each of the counterweight slabs includes a lift point for lifting the counterweight slab and placing the counterweight slab into one of the internal sections.

9. The mining machine of claim 8, wherein the lift point includes an aperture configured to receive a lifting hook.

10. The mining machine of claim 1, wherein the counterweight system includes a first staircase coupled to the first side wall and a second staircase coupled to the second side wall.

11. The mining machine of claim 10, wherein each of the first and second staircases are retractable to an upright position.

12. A mining machine comprising:

a base having a first end and a second, opposite end;

drive tracks coupled to the base;

a boom coupled to the base and extending from the first end of the base;

a handle coupled to the boom;

a dipper coupled to the handle; and

a counterweight system coupled to the second end of the base, the counterweight system having;

a body having a top wall, a bottom wall, a first side wall, a second side wall, a back wall, and a plurality of internal walls disposed between the first side wall and the second side wall, each internal wall extending in a direction from the top wall to the bottom wall, wherein the internal walls and the first and second side walls define a plurality of internal sections, wherein the back wall defines a first, closed end of the body, wherein the body includes a second, opposite open end for providing access to the internal sections, wherein the body further includes a plurality of intermediate walls spaced from the back wall and disposed between the first, closed end and the second, opposite end, wherein the intermediate walls define back ends of the internal sections, and wherein at least one of the intermediate walls includes a cut-out section.

13. The mining machine of claim 12, wherein one of the internal sections has a size that is different than another one of the internal sections.

14. The mining machine of claim 12, wherein the counterweight system includes a first staircase coupled to the first side wall and a second staircase coupled to the second side wall, wherein each of the first and second staircases are retractable to an upright position.

15. A mining machine comprising:

a base having a first end and a second, opposite end;

drive tracks coupled to the base;

a boom coupled to the base and extending from the first end of the base;

a handle coupled to the boom;

a dipper coupled to the handle; and

a counterweight system coupled to the second end of the base, the counterweight system having;

a body having a top wall, a bottom wall, a first side wall, a second side wall, and a plurality of internal walls disposed between the first side wall and the second side wall, each internal wall extending in a direction from the top wall to the bottom wall, wherein the internal walls and the first and second side walls define a plurality of internal sections; and

a plurality of counterweight slabs, each counterweight slab sized to fit entirely within one of the internal sections by inserting the counterweight slab laterally along a direction toward the first end of the base;

wherein the counterweight slabs are disposed within the body, wherein the body includes a back wall defining a first, closed end, and a plurality of doors coupled to the top wall and the bottom wall that define a second, closed end, wherein the body has a plurality of intermediate walls spaced from the back wall and disposed between the first, closed end and the second, closed end, and wherein the intermediate walls define back ends of the internal sections.

16. The mining machine of claim 15, wherein each of the intermediate walls extends parallel to the back wall.

17. The mining machine of claim 15, wherein at least one of the intermediate walls includes a cut-out region.