Impact material fracturing device for excavators and the like

Claim 2

A slim profile mechanically driven impact fracturing apparatus, said apparatus comprising: a housing member; an elongated fracturing shank pivotally-mounted at one end to said housing member for oscillatory movement about said pivotal mounting and including a fracturing tip at the other end; a drive shaft rotatably mounted to said housing member and extending substantially parallel to said shank and in tHe plane of oscillation thereof; a motor secured to said housing member and connected to said drive shaft; an eccentric journal mounted on said drive shaft for rotation therewith; an impact member supported by said housing member for impact engagement with said shank; and, a rigid link journalled at one end to said eccentric journal and pivotally connected at the other end to said impact member.

Claim 3

The apparatus of claim 1 wherein said journal of said link to said eccentric includes a self-aligning bearing.

Claim 4

The apparatus of claim 1 wherein said fracturing tip extends at substantially right angles to said pivotal axis.

Claim 5

The apparatus of claim 1 wherein said housing member is rotatably mounted to a movable frame for 360* of rotation with respect thereto.

Claim 6

The apparatus of claim 4 wherein said 360* of rotation is about an axis substantially parallel to said drive shaft and in said plane of oscillation; and, said apparatus includes means to rotate said housing member with respect to said movable frame.

Claim 7

The apparatus of claim 5 wherein said axis is disposed between said shaft and said shank.

Claim 8

The apparatus of claim 6 wherein said apparatus is mounted on the outer end of an extensible boom.

Claim 9

The apparatus of claim 6 wherein said apparatus is supported by said movable frame for at least 180* of pivotal movement about a horizontal axis.

Claim 10

The apparatus of claim 1 wherein said drive shaft includes a massive flywheel for storing inertial energy.

Claim 11

The apparatus of claim 9 including hydraulic motor operatively connected to a said drive shaft to power said apparatus.

Claim 12

The apparatus of claim 7 wherein said extensible boom comprises the linkage of a hydraulic excavator, including a boom, a stick, and bucket tilt linkage; and, said movable frame is pivotally connected to the outer end of said stick and to said bucket tilt linkage.

Claim 13

An impact rock fracturing machine comprising in combination: an excavator machine comprising a mobile undercarriage, a rotatable upper structure mounted for 360* rotation about a vertical axis on said undercarriage, a boom pivoted at one end to said upper structure for pivotal movement in a vertical plane with respect to said upper structure, a stick pivotally connected at one end to the outer end of said boom and including bucket pivot connecting means and tilt linkage at its outer end, and a hydraulic jack for each of said boom, stick, and tilt linkage for pivot of movement of each about its respective pivot point; an impact fracturing tool including a housing pivotally mounted on the outer end of said stick at the bucket pivot means and connected to said bucket tilt linkage for pivotal movement about a first axis with respect to said stick so that said tool can be extended outward away from said undercarriage and upper structure by extension of said linkage; and said housing supporting said impact fracturing tool and mounted for complete 360* rotation with respect to said stick about a second axis which extends at substantially right angles to said first axis.

Claim 14

An impact rock fracturing machine comprising in combination: an excavator machine comprising a mobile undercarriage, a rotatable upper structure mounted for 360* rotation about a vertical axis on said undercarriage, a boom pivoted at one end to said upper structure for pivotal movement in a vertical plane with respect to said upper structure, a stick pivotally connected at one end to the outer end of said boom and including bucket pivot connecting means and tilt linkage at its outer end, and a hydraulic jack for each of said boom, stick, and tilt linkage for pivot of movement of each about its respective pivot point; an impact fracturing tool including a housing pivotally mounted on the outer end of said stick at the bucket pivot means and connected to said bucket tilt linkage for pivotal movement about a first axis with respect to said stick so that said tool can be extended outward away from said undercarriage and upper structure by extension of said linkage; and said housing supporting said impact fracturing tool and mounted for complete 360* rotation with respect to said stick about a second axis which extends at substantially right angles to said first axis.

Claim 15

The machine of claim 12 wherein said fracturing tool includes a fracturing shank mounted in said housing for movement at right angles to said second axis and including a point extending away from said axis; impact means disposed adjacent said shank for intermittently impacting said shank; a shaft rotatably mounted in said housing parallel to said second axis and including an eccentric throw; and, means establishing a positive connection of said eccentric throw to said impact means to positively drive same.

Claim 16

An impact rock fracturing machine comprising in combination: an excavator machine comprising a mobile undercarriage, a rotatable upper structure mounted on said undercarriage, a boom pivoted at one end to said upper structure, a stick pivotally connected to the other end of said boom and including buckEt pivot connecting means and tilt linkage; an impact fracturing tool including a housing pivotally mounted on said stick at the bucket pivot means and connected to said bucket tilt linkage for pivotal movement about a first axis with respect to said stick; said housing supporting said impact fracturing tool and mounted for complete rotation with respect to said boom about a second axis which extends at substantially right angles to said first axis; said fracturing tool includes a fracturing shank pivotally mounted in said housing for movement at right angles to said second axis and including a point extending away from said axis; impact means disposed adjacent and pivotally mounted to said shank for intermittently impacting said shank; a shaft rotatably mounted in said housing parallel to said second axis and including an eccentric throw; and connecting means comprising a rigid link member pivotally connected at one end to said impact means and journaled at the other end to said eccentric throw.

Claim 17

An impact rock fracturing machine comprising in combination: an excavator machine comprising a mobile undercarriage, a rotatable upper structure mounted on said undercarriage, a boom pivoted at one end to said upper structure, a stick pivotally connected to the other end of said boom and including buckEt pivot connecting means and tilt linkage; an impact fracturing tool including a housing pivotally mounted on said stick at the bucket pivot means and connected to said bucket tilt linkage for pivotal movement about a first axis with respect to said stick; said housing supporting said impact fracturing tool and mounted for complete rotation with respect to said boom about a second axis which extends at substantially right angles to said first axis; said fracturing tool includes a fracturing shank pivotally mounted in said housing for movement at right angles to said second axis and including a point extending away from said axis; impact means disposed adjacent and pivotally mounted to said shank for intermittently impacting said shank; a shaft rotatably mounted in said housing parallel to said second axis and including an eccentric throw; and connecting means comprising a rigid link member pivotally connected at one end to said impact means and journaled at the other end to said eccentric throw.

Claim 18

A mechanically driven impact fracturing apparatus, said apparatus comprising: a housing; an elongated fracturing shank pivotally mounted at one end to said housing member for oscillatory movement about said pivotal mounting and including a fracturing tip at the other end; a drive shaft rotatably mounted in said housing and extending substantially parallel to said shank and in the plane of oscillation thereof; said drive shaft including an eccentric journal for rotation therewith; and an impact member supported in said housing for impact engagement with said shank, and including substantially rigid means journaled to said eccentric journal for establishing a positive connection of said impact member to said eccentric journal.

Claim 19

A mechanically driven impact fracturing apparatus, said apparatus comprising: a housing; an elongated fracturing shank pivotally mounted at one end to said housing member for oscillatory movement about said pivotal mounting and including a fracturing tip at the other end; a drive shaft rotatably mounted in said housing and extending substantially parallel to said shank and in the plane of oscillation thereof; said drive shaft including an eccentric journal for rotation therewith; and an impact member supported in said housing for impact engagement with said shank, and including substantially rigid means journaled to said eccentric journal for establishing a positive connection of said impact member to said eccentric journal.

Claim 20

The impact fracturing apparatus of claim 15 comprising: a rotary hydraulic motor mounted on said housing for rotating said drive shaft.

Claim 21

The impact fracturing apparatus of claim 15 comprising a massive flywheel mounted on said drive shaft and rotatable therewith for storing massive amounts of inertial energy.

Claim 22

The impact fracturing apparatus of claim 15 comprising mounting means for mounting said housing for at least limited angular adjustment about an axis extending parallel to the axis of said drive shaft.

Claim 23

The impact fracturing apparatus of claim 17 comprising mounting means for mounting said housing for at least limited angular adjustment about an axis extending parallel to the axis of said drive shaft.

Claim 24

The impact fracturing apparatus of claim 19 comprising: a rotary hydraulic motor mounted on said housing for rotating said drive shaft.