Shoveling apparatus with multi-positional shovel

• US 7,914,249 B2
• Filed: 02/12/2009
• Issued: 03/29/2011
• Est. Priority Date: 02/12/2009
• Status: Active Grant

• Current Assignee: Alpha Natural Resources, LLC (Contura Energy, Inc.)
• Original Assignee: Massey European Sales Incorporated
• Inventors: Maynard, James R, Brock, Jimmy L
• Primary Examiner(s): UNDERWOOD, DONALD W
• Application Number:
  US12/369,765
• Publication Number:
  US 20100201180A1
• Time in Patent Office: 775 Days
• Field of Search: 414/680, 414/685, 414/917, 414/686, 374/15, 374/16, 374/66
• US Class Current: 414/686
• CPC Class Codes: E21C 41/18 for brown or hard coal
• CPC Class Codes: E21F 13/063 Loading devices for use in mining

Abstract

A shoveling apparatus including a low profile vehicle, a boom assembly, and a shovel assembly for use in underground mining operations, and particularly useful in clearing coal and rock debris from a belt line corridor. The low profile vehicle includes an advanceable support that supports the boom assembly and laterally advances the boom assembly from the cab portion of the vehicle. The boom assembly includes a support structure, a rotary actuator and a linear actuator, to control lateral and vertical rotation of the support structure (and thus the shovel assembly) with respect to a ground surface. The shovel assembly includes a rotary actuator and a shovel, and in some embodiments a tilting mechanism, to control the lateral and in some cases vertical, rotation of the shovel with respect to the boom assembly.

Claims

1. A shoveling apparatus comprising:

a low profile vehicle suitable for use in underground mines, said vehicle further comprising an advanceable support structure, and one or more receptacles partially receiving and supporting longitudinal movement of said advanceable support structure;

a boom assembly;

a shovel;

first and second rotary actuators, wherein

said first rotary actuator is affixed to said advanceable support structure and said boom assembly, to control horizontal rotational movement of said boom assembly about said support structure, and

said second rotary actuator is affixed to said boom assembly and said shovel, to control horizontal rotational movement of said shovel about said boom assembly; and

first and second linear actuators, wherein

said first linear actuator is engaged with said advanceable support structure to control the longitudinal movement of the advanceable support structure, and

said second linear actuator is engaged with said boom assembly to control the vertical rotational movement of the boom assembly with respect to the first rotary actuator.

2. The apparatus of claim 1, further comprising a third linear actuator engaged with said shovel to control the vertical rotation of the shovel with respect to the second rotary actuator.

3. The apparatus of claim 1, wherein said advanceable support structure has a length of between 5′

and 8′

, and comprises a pair of parallel arms moveably positioned on opposing sides of the low profile vehicle.

4. The apparatus of claim 1, wherein said boom assembly has a length of between 6′

and 10′

, and comprises a positioning arm and a leveling arm.

5. The apparatus of claim 1, wherein said boom assembly has a first and second end, with each end having an aperture therethrough;

and wherein said first and second rotary actuators are hydraulic helical actuators, each having four feet forming a base thereof, the apparatus further comprising;

a rectangular structure affixed to and between said first rotary actuator and said advanceable support structure, with the feet of the first rotary actuator being secured to said rectangular structure;

a first bracket structure, clevises and pins, affixed to and between said first rotary actuator and said boom assembly, wherein the first bracket structure is straddle mounted on said rotary actuator, the clevises extend from said first bracket structure, and the pins extend through the aperture in the first end of the boom assembly when said end is engaged with a corresponding clevis;

a plate, clevises and pins, affixed to and between said second rotary actuator and said boom assembly, wherein the feet of the second rotary actuator are secured to said plate, the clevises extend from said plate, and the pins extend through the aperture in the second end of the boom assembly when said end is engaged with a corresponding clevis; and

a second bracket structure, affixed to and between said second rotary actuator and said shovel, wherein the second bracket structure is straddle mounted on said second rotary actuator.

6. The apparatus of claim 2, wherein said first linear actuator is a hydraulic actuator, and wherein said second and third linear actuators each comprises two hydraulic cylinder systems.

7. The apparatus of claim 1, wherein

the advanceable support structure comprises two parallel arms, positioned on opposing sides of the low-profile vehicle, so that each said arm has an internal end and an exposed end,

a face plate affixed to the exposed ends of said parallel arms

the one or more receptacles comprise at least two receptacles, each having rollers positioned therein to receive one of said parallel arms;

the vehicle further comprising opposing cavities, each cavity being positioned on corresponding sides of the vehicle to conceal and protect the respective receptacles, the first linear actuator, and a portion of the parallel arm;

the first linear actuator comprises two hydraulic cylinders, each said cylinder comprising a barrel and a cylinder rod, with each said rod being affixed to the internal end of a parallel arm, and said barrel being affixed to at least one of said receptacles.

8. The apparatus of claim 7, wherein each of the parallel arms, at the exposed end thereof, angle away from the longitudinal axis of the vehicle.

9. The apparatus of claim 1, wherein the shovel is defined in part by a cavity, and further comprises a moveable plate positioned in said cavity, a jack coupled to said plate, and a rod protruding from said plate and concealing said jack.

10. A shoveling apparatus comprising:

a low profile vehicle suitable for use in underground mines, said vehicle further comprising

a pair of parallel arms positioned on opposing sides of the low profile vehicle, each arm having an internal end and an exposed end,

at least two receptacles, each having rollers positioned thereon, wherein each of said receptacles partially receive and said rollers support longitudinal movement of one of said parallel arms,

a face plate affixed to the exposed ends of said parallel arms, and

opposing cavities, each positioned to conceal the respective receptacles and a portion of the parallel arm, on a side of the vehicle;

a positioning arm and a leveling arm;

a shovel;

first and second rotary actuators, wherein

said first rotary actuator is affixed to said parallel arms and said positioning and leveling arms, to control horizontal rotational movement of said positioning and leveling arms about said parallel arms; and

said second rotary actuator is affixed to said positioning and leveling arms and said shovel, to control horizontal rotational movement of said shovel about said positioning and leveling arms; and

first, second and third hydraulic cylinder systems, wherein

said first hydraulic cylinder system comprises two hydraulic cylinders, each said cylinder comprising a barrel and a cylinder rod, with each said rod being affixed to the internal end of a parallel arm to control the longitudinal movement thereof;

said second hydraulic cylinder system is engaged with said positioning and leveling arms to control the vertical rotational movement of the positioning and leveling arms with respect to the rotary actuator; and

said third hydraulic cylinder system is engaged with said shovel to control the vertical rotation of the shovel with respect to the second rotary actuator.

11. The apparatus of claim 10, wherein said parallel arms each have a length of between 5′

and 8′

, and said positioning and leveling arms each have a length of between 6′ and

10′

.

12. The apparatus of claim 10, wherein said positioning and leveling arms each has a first and second end, with each end having apertures therethrough, and wherein said first and second rotary actuators are hydraulic helical actuators having feet forming a base thereof, further comprising:

a rectangular structure affixed to and between said first rotary actuator and said face plate, with the feet of the first rotary actuator being secured to said rectangular structure;

a first bracket structure, clevises and pins, affixed to and between said first rotary actuator and the positioning and leveling arms, wherein the first bracket structure is straddle mounted on said first rotary actuator, the clevises extend from said first bracket structure, and the pins extend through the apertures in the first end of the positioning and leveling arms when said ends are engaged with a corresponding clevis;

a plate, clevises and pins, affixed to and between said second rotary actuator and said positioning and leveling arms, wherein the feet of the second rotary actuator are secured to said plate, the clevises extend from said plate, and the pins extend through the apertures in the second end of the positioning and leveling arms when said ends are engaged with a corresponding clevis; and

a second bracket structure, affixed to and between said second rotary actuator and said shovel, wherein the second bracket structure is straddle mounted on said second rotary actuator.

13. The apparatus of claim 10, wherein each of the parallel arms, at the exposed end thereof, angle away from the longitudinal axis of the vehicle.

14. The apparatus of claim 10, wherein the shovel is defined by a cavity and further comprises a moveable plate positioned in said cavity, a jack coupled to said plate, and a rod protruding from said plate and concealing said jack.

15. A method for removing coal and rock debris from the belt line corridor of an underground mine, said method comprising the steps of:

providing a shoveling apparatus comprising;

a low profile vehicle suitable for use in underground mines, said vehicle further comprising an advanceable support structure, and one or more receptacles partially receiving and supporting said advanceable support structure; and

a boom assembly;

a shovel;

first and second rotary actuators, wherein

said first rotary actuator is affixed to said advanceable support structure and said boom assembly, to control horizontal rotational movement of said boom assembly about said advanceable support structure; and

said second rotary actuator is affixed to said boom assembly and said shovel, to control rotational movement of said shovel about said boom assembly; and

a linear actuator, wherein said linear actuator is engaged with said boom assembly to control the vertical movement of the boom assembly.

positioning said apparatus near the corridor;

positioning the shovel within the corridor, at ground surface, and scooping coal and rock debris therefrom by linear movement of the parallel arms, linear and rotational movement of the boom assembly, and rotational movement of the shovel; and

lifting the shovel and depositing the coal and rock debris on the belt line by linear and rotational movement of the boom assembly, and rotational movement of the shovel.