Lump breaker for mining machine
AssigneeJoy MM Delaware, Inc.
InventorsEdward F. Niederriter, Shawn W. Franklin
Life of this patent
Estimating the term…
Abstract
A longwall shearer is positioned adjacent a face conveyor for transporting material that is cut from a mining face. The longwall shearer includes a chassis, an arm pivotably coupled to the chassis, a cutting drum for engaging the mining face, and a lump breaker for engaging material on the face conveyor. The chassis includes a first end and a second end, and the chassis is movable in at least a first direction that is generally parallel to the mining face. The cutting drum is rotatably supported on the arm. The lump breaker is pivotably coupled to the chassis about an axis, and the lump breaker includes at least one tooth for breaking apart the cut material.
Claims15
A longwall shearer for cutting material from a mining face, the longwall shearer positioned adjacent a face conveyor for transporting material, the longwall shearer comprising:
- a chassis including a first end and a second end, the chassis movable in at least a first direction that is generally parallel to the mining face;
- an arm pivotably coupled to the chassis;
- a cutting drum for engaging the mining face, the cutting drum rotatably supported on the arm and rotatable about a drum axis;
- and
- a lump breaker for engaging material on the face conveyor, the lump breaker including a breaker arm having a first end and a second end, the first end pivotably coupled to the chassis about an arm axis parallel to the drum axis, the breaker arm further including a planar surface extending between the first end and the second end, the breaker arm further including a plurality of teeth for breaking apart the cut material, the teeth supported on the planar surface and aligned linearly in a plane perpendicular to the arm axis.
A lump breaker for a longwall shearer, the longwall shearer including a chassis supporting a cutting drum for cutting material from a mining face, the chassis positioned proximate a face conveyor for transporting cut material in a first direction, the lump breaker comprising:
- an elongated arm including a first end and a second end, the first end adapted to be pivotably coupled to the chassis proximate the face conveyor, the first end being pivotable about an axis perpendicular to the first direction and parallel to a pan of the face conveyor, the arm including a planar surface extending between the first end and the second end;
- a plurality of teeth for engaging material transported on the face conveyor, the teeth supported on the planar surface and aligned linearly within a plane perpendicular to a pan of the face conveyor and parallel to the first direction;
- and
- an actuator for pivoting the arm about the axis, the actuator including a first end coupled to the arm and a second end adapted to be coupled to the chassis.
A longwall mining system for cutting material from a mining face, the longwall mining system comprising:
- a face conveyor defining a conveyor surface for transporting material, the face conveyor extending in a first direction;
- a chassis coupled to the face conveyor and positioned above the face conveyor, the chassis including a first end and a second end, the chassis being movable along the face conveyor in at least the first direction;
- an arm pivotably coupled to the chassis, the arm supporting a cutting drum for rotation about a drum axis;
- and
- a lump breaker for engaging material transported by the face conveyor, the lump breaker including a breaker arm having a first end and a second end, the first end pivotably coupled to the chassis about a breaker arm axis parallel to the drum axis, the breaker arm including a plurality of teeth positioned proximate the face conveyor, the teeth aligned in a plane perpendicular to the breaker arm axis and perpendicular to the conveyor surface.
Dependencies are inferred from the claim text.