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US 4,785,892 AGranted
Pile driver, pile drawer and/or drilling machine
OwnerLam M. Lueninventor
Life of this patent
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OwnerLam M. Lueninventor
Estimating the term…
A combined pile driver, pile drawer and drilling machine comprises a carriage (1), a turntable (1A) mounted on the carriage (1), support device (2), lifting device (4) and a mast system (5) comprising two mast units (3). The support device (2) comprises a tubular support bearing (9) which is hinged to the turntable (1A) at (6A) and the lifting device (4) comprises two hydraulic cylinder (6) which are hinged to the turntable (1A) at (6B) and to a bearing sleeve (9A) at (6C). The support device (2) further comprises a mast support (10) which surrounds the bearing (9) and extends through the sleeve (9A) and can be rotated about its own axis by means of an hydraulic cylinder (11) and a coupling (11A). Each mast unit (3) is mounted on the mast support (10) by brackets (14) and comprises a guide rail (13), a mast (12) which is slidable on the guide rail (13) by an hydraulic cylinder (15) and a cradle (30) which is movable on the mast (12) by an hydraulic feed cylinder (28). Each cradle (30) supports a rotary head or percussion head for a drilling tool or the like or a pneumatic hammer for pile driving. One of the masts (12) is also provided with a clamp (16) and a turning unit (17) for pile drawing. The machine can also be used as a crane. A hydraulic jack (37) is provided to support the weight of the mast system when the mast system is in a vertical position.
A machine comprising a chassis carrying a turntable rotatably mounted for rotation about a vertical axis on said chassis, an elongated lifting and/or tool carrying means and support means for the lifting and/or tool carrying means, wherein the support means is mounted to a surface of the turntable so as to be rotatable with said turntable and rotatable relative to the turntable about first and second non-parallel axes irrespective of the orientation of the lifting and/or tool carrying means relative to the said surface, the orientation of the first said axes of rotation being dependent on the rotation of the support means about the second of the axes, wherein the lifting and/or tool carrying means is rotatable with respect to the support means.
A machine comprising a chassis carrying a turntable, an elongated lifting and/or tool carrying means and support means for the lifting and/or tool carrying means, wherein the support means is mounted to a surface of the turntable about first and second non-parallel axes irrespective of the orientation of the lifting and/or tool carrying means relative to the said surface, the orientation of the first of said axes of rotation being dependent on the rotation of the support means about the second of said axes, wherein the lifting and/or tool carrying means is rotatable with respect to the support means, the axis of the elongated lifting and/or tool carrying means lying parallel to the turntable surface, the said first axis extending perpendicularly to the turntable surface, the said second axis lying in or parallel to the turntable surface, said support means being rotatable about said second axis by means of raising means, said support means being rotatable about said second axis through not more than 90.degree., said support means being rotatable through not more than 30.degree. about said first axis, said raising means comprising one or more fluid operated piston and cylinder arrangements, one of said piston and cylinder of said arrangements being pivotally connected to the turntable and the other of said piston and cylinder of said arrangements being pivotally connected to said support means, said support means being elongate and being connected to the turntable at a point remote from the pivotal connections between said support means and said piston and cylinder arrangements by a mounting capable of rotation about said first and second non-parallel axes, said support means comprising two members, one of which members is rotatably mounted on the other, and wherein the lifting and/or tool carrying means is fixed to said rotatable member, said rotatable member being rotatable by hydraulic or pneumatic means, said hydraulic or pneumatic means comprising two further piston and cylinder arrangements pivotally connected to a first gear and operable in opposition so that, in use, when the piston of one of said further piston and cylinder arrangements is extended said first gear rotates in one direction, and when the piston of the other of said piston and cylinder arrangements is extended said first gear rotates in the opposite direction, said first gear meshing with a second gear disposed at right angles thereto, said second gear being connected to rotate said rotatable member.
A machine which comprises a lifting and/or tool-carrying means and support means therefor, wherein the support means is rotatable about first and second non-parallel axes and comprises two members, one of said members is rotatably mounted on the other of said members, and wherein the lifting and/or tool carrying means is fixed to said rotatable member, said rotatable member being rotatably by hydraulic or pneumatic means comprising two piston and cylinder arrangements pivotally connected to a first gear and operable in opposition so that, in use, when the piston of one of said piston and cylinder arrangements is extended said first gear rotates in one direction and when the piston of the other of said piston and cylinder arrangement is extended said first gear rotates in the opposite direction, said first gear meshing with a second gear disposed at right angles to said first gear, said second gear being connected for rotating said rotatable member.
Dependencies are inferred from the claim text.