摘要:
Apparatus for longitudinally segmenting a cruciform shaped irradiated boiling water reactor control rod having four elongated blades radially extending from a central spline, into four flat panels. The apparatus employs a double bladed band saw with the band saw blades orthogonally oriented at two different elevations and having one side of each band saw blade crossing over the center of the spline of the control rod in between the control rod blades.
摘要:
A band saw machine is provided with a body frame, two wheels provided on the body frame and rotating by driving force on an inclined plane which is inclined to a basic plane which is flush with a cutting plane, a saw blade formed in loop and strained between the two wheels, a stabilizing member bringing a portion of the saw blade which runs around a cutting section which is fixed between the wheels and on an edge intersected the inclined plane with the basic plane close to the basic plane in near-parallel, and a depressing mechanism fixed up adjacent to the cutting section side of the stabilizing member to clear the gap between the saw blade and the basic plane.The band saw machine, for example in a ship on building, can finely cut a protrusion on a floor of a bottom to its root to remove it. Thus, an extra effort to smooth a floor can be saved.
摘要:
The invention relates to an apparatus for working, especially cutting tubular and round-bar type pieces (1), said apparatus comprising a clamping mechanism (2) adapted to be fastened to said work piece (1) rotatably therearound and said clamping mechanism (2) having attached thereto a tool unit (3), which is provided with adjustment means (4) for displacing said tool unit (3) relative to the clamping mechanism (2) towards or away from the work piece (1), and said clamping mechanism (2) including a frame element (5) and first and second arms (6, 7) extending therefrom, said arms (6, 7) being articulated at one end to the frame element (5) of the clamping mechanism (2) and each arm (6, 7) has its free end fitted with a bearing axle (31, 32), which is provided with at least one bearing wheel (15, 16), the clamping mechanism (2) having its frame element (5) provided in a rotatable and axially immobile fashion with a threaded shaft (20), whose first end has a right-handed thread provided with a first nut (21) and whose second end has a left-handed thread provided with a second nut (22), and said threaded shaft (20) being provided with a member (23) for rotating the threaded shaft (20), and the first arm (6) and the first nut (21) being articulated to each other by means of a first suspension arm (24) and the second arm (7) and the second nut (22) being articulated to each other by means of a second suspension arm (25). The apparatus further comprises two second bearing axles (33, 34), fitted adjustably relative to their mutual distance between the arms (6, 7) and the frame element (5), each of said axles being provided with at least one bearing wheel (35, 36).
摘要:
A sample cutting assembly includes a base block, a saw pressure plate, an external blade guide, and an internal blade guide. The cutter can be used to conveniently remove samples for Material testing to determine serviceability or material condition. Apparatuses and techniques for using the sample cutting assembly are also disclosed.
摘要:
An apparatus for cutting workpieces adapted to engage the workpiece in at least four points of surface engagement. The apparatus has a clamping mechanism designed to be fastened to the workpiece. The clamping mechanism has a tool unit attached which includes adjustment means for displacing the tool unit relative to the clamping mechanism towards or away from the workpiece. The clamping mechanism has a frame element and arms extending from the clamping mechanism. Each of the four arms includes a bearing wheel. Each of the wheels may be used to engage a workpiece to retain its position while it is being cut.
摘要:
A portable sawmill (20) having a frame (22) adapted to be disposed transversely of a log (24). A pair of horizontally spaced apart wheels (26a,b) are adapted to straddle the log (24). The wheels (26a,b) are rotatably supported by the frame (22) for rotation in a substantially vertical plane. A band saw blade (28) is trained around the wheels (26a,b) and for movement transversely of the log (24). An engine (30) is provided for rotating at least one of the wheels (26a,b) to cause the band saw blade (28) to form a cut in the log (24) as the frame (22) is moved longitudinally along the log (24). An elevating assembly (44) is provided for supporting the frame (22) so as to enable vertical adjustment of the band saw blade (28) relative to a top surface of the log (24). Guide rollers (40) are interconnected through the frame (22) for guiding the frame (22) along the log (24).
摘要:
A band saw for sawing a rail of a track is configured for fastening to a vice which can be clamped onto the rail and is provided with a feed device. The band saw includes a frame in which four saw band rollers are mounted. A saw band is stretched around the four saw band rollers and, in a recess of the frame, the saw band is twisted into a sawing plane by guiding elements. Due to the utilization of four saw band rollers, there is little wear of the saw band, resulting in a longer service life.
摘要:
Apparatus for longitudinally segmenting a cruciform shaped irradiated boiling water reactor control rod having four elongated blades radially extending from a central spline, into four flat panels. The apparatus employs a double bladed band saw with the band saw blades orthogonally oriented at two different elevations and having one side of each band saw blade crossing over the center of the spline of the control rod in between the control rod blades.
摘要:
A method of cutting underwater structures which comprises the following steps:a local underwater step including:the anchorage of cutting means in the cutting area, exactly positioned to effect the desired cut, to the structure to be cut;a remotely-controlled step including:the automatic activation and de-activation, from a spot at the surface, of the cutting means and the automatic feed thereof in the cutting direction from a non-interference position through the structure, the cutting means being provided with cutting tools for cutting metallic and non-metallic materials;a local underwater step for recovering the cutting means (T).