Back to results
US 5,355,964 AGranted
Pile driving and/or pile pulling vibratory assembly with counterweights
OwnerJohn L. Whiteinventor
Life of this patent
Estimating the term…
Abstract
A pile driving and/or pile pulling vibratory assembly for imparting a vibratory force to a pile wherein the vibratory assembly has a housing and a pair of counterweights rotatably carried in receiving areas within the housing. The counterweight has a cylindrical gear portion and an eccentric weight portion integrally formed therewith. The eccentric weight portion has insert-receiving areas therein that are adapted to each receive a solid tungsten rod. The solid tungsten rod is adhered within the insert receiving area with an adhesive. Driving motors are operatively connected to the counterweights and are adapted to rapidly rotate the counterweights within the housing in order to generate substantial vibratory forces.
Claims27
A vibratory assembly for imparting a vibratory force to a pile, comprising:
- a housing having at least one counterweight receiving means;
- a counterweight rotatably carried in said receiving means for rotation about a rotational axis, said counterweight having a cylindrical gear portion and an eccentric weight portion integral with said cylindrical gear portion, said eccentric weight portion having at least one insert-receiving area formed therein, said counterweight being made of a first metal;
- a solid insert member securely positioned in one of said at least one insert-receiving areas said solid insert member being made of a second metal having a specific gravity greater than the specific gravity of said first metal, and a melting point temperature of 328.degree. C. or greater;
- and
- at least one driving means operatively connected to said counterweight and adapted to rotate said counterweight about its rotational axis.
2 more elements
A vibratory assembly for imparting a vibratory force to a pile, comprising:
- a housing having first and second counterweight receiving means;
- a first counterweight rotatably carried in said first receiving means for rotation about a rotational axis, said first counterweight having a cylindrical gear portion and an eccentric weight portion integral with said cylindrical gear portion, said eccentric weight portion having at least one insert-receiving area formed therein, said first counterweight being made of a first metal;
- a second counterweight rotatably carried in said second receiving means for rotation about a rotational axis, said second counterweight having a cylindrical gear portion and an eccentric weight portion integral with said cylindrical gear portion, said eccentric weight portion having at least one insert-receiving area formed therein, said second counterweight being made of said first metal;
- a first solid insert member securely positioned in one of said at least one insert-receiving area of said first counterweight, said first solid insert member being made of a second metal having a specific gravity greater than the specific gravity of said first metal, and a melting point temperature of 328.degree. C. or greater;
- a second solid insert member securely positioned in one of said at least one insert-receiving area of said second counterweight, said second solid insert member being made of said second metal;
- and
- at least one driving means operatively connected to said first and second counterweights and adapted to rotate said first and second counterweights about their rotational axis.
4 more elements
A vibratory assembly for imparting a vibratory force to a pile, comprising:
- a housing having an even number of counterweight receiving means;
- an even number of counterweights, said counterweights being rotatably carried in said counterweight receiving means for rotation about a rotational axis, each of said counterweights having a cylindrical gear portion and an eccentric weight portion integral with said cylindrical gear portion, said eccentric weight portion having at least one insert-receiving area formed therein, said counterweights being made of a first metal;
- a plurality of solid insert members, at least one of said solid insert members securely positioned in said at least one insert-receiving areas of said counterweights respectively, each of said solid insert members being made of a second metal having a specific gravity greater than the specific gravity of said first metal, and a melting point temperature of 328.degree. C. or greater;
- and
- at least one driving means operatively connected to said counterweights and adapted to rotate each of said counterweights about their rotational axis.
2 more elements
A counterweight assembly for use in a vibratory pile driver and/or pile puller, comprising:
- a cylindrical gear portion having a plurality of gear teeth around its circumference, said cylindrical gear portion being made of a first metal;
- an eccentric weight portion connected to said cylindrical gear portion at a position radially outward of the axis of said cylindrical gear portion, said eccentric weight portion having at least one insert-receiving area therein, said eccentric weight portion being made of said first metal;
- and
- at least one solid insert member having a predetermined size securely positioned in said at least one insert-receiving area respectively, said at least one solid insert member being made of a second metal having a specific gravity greater than the specific gravity of said first metal and a melting point temperature of 328.degree. C. or greater.
1 more element
A method of making a counterweight assembly of a vibratory device for imparting a vibratory force to a pile, comprising the steps of:
- forming with a first metal a counterweight having a cylindrical gear portion and an eccentric weight portion integral with the cylindrical gear portion, a coaxially aligned aperture through said cylindrical gear and eccentric weight portions and adapted to receive a shaft, and at least one insert-receiving area in said eccentric weight adapted to receive a solid insert member;
- providing a solid insert member sized to fit within the at least one insert-receiving area from a second metal having a specific gravity greater than the specific gravity of the first metal and a melting point of 328.degree. C. or greater;
- inserting the solid insert member into the at least one insert-receiving area;
- securing the solid insert member within said at least one insert-receiving area;
- forming a plurality of gear teeth around the circumference of the cylindrical gear portion;
- and
- balancing the counterweight assembly such that the center of gravity of the eccentric weight portion is aligned with the gear teeth.
4 more elements
A method of making a counterweight assembly of a vibratory device for imparting a vibratory force to a pile, comprising the steps of:
- casting with a first metal a counterweight having a cylindrical gear portion and an eccentric weight portion integral with the cylindrical gear portion, a coaxially aligned aperture through said cylindrical gear and said eccentric weight portion and adapted to receive a shaft, and at least one insert-receiving area in said eccentric weight adapted to receive a solid insert member;
- boring the at least one insert-receiving area such that the inside dimensions of the receiving area is slightly larger than the outside dimensions of the solid insert member;
- providing the solid insert member being made of tungsten and having a specific gravity greater than the specific gravity of said first metal and sized to fit within the at least one insert-receiving area;
- inserting the solid insert-member into the at least one insert-receiving area;
- adhering the solid insert member within said insert-receiving area with an adhesive;
- cutting a plurality of gear teeth around the circumference of the cylindrical gear portion;
- and
- balancing the counterweight assembly such that the center of gravity of the eccentric weight portion is aligned with the gear teeth.
5 more elements
Dependencies are inferred from the claim text.