Abstract: A pressure-resistant hull for a submersible, includes unit hulls, reinforcing ribs, connecting channels, and closure heads. A plurality of unit hulls are provided, and are sequentially strung together spiralling upward or spiralling downward, the closure heads being arranged on the unit hulls at the first position and the last position respectively, an observation window being provided on each unit hull respectively, adjacent two unit hulls in a horizontal direction being respectively connected by means of a reinforcing rib, and at least two connecting channels being provided between adjacent two rings of the unit hulls in the vertical direction. The design method includes using a spiral joining structure to facilitate organic adjustment of the number of unit hulls, thus having better utilization of space and aiding to greatly expand the space. The sensitivity of the limit load to defects is low, increasing axial rigidity, improving the overall pressure-resistive ability.

Abstract: A pressure-resistant hull for a submersible, includes unit hulls, reinforcing ribs, connecting channels, and closure heads. A plurality of unit hulls are provided, and are sequentially strung together spiralling upward or spiralling downward, the closure heads being arranged on the unit hulls at the first position and the last position respectively, an observation window being provided on each unit hull respectively, adjacent two unit hulls in a horizontal direction being respectively connected by means of a reinforcing rib, and at least two connecting channels being provided between adjacent two rings of the unit hulls in the vertical direction. The design method includes using a spiral joining structure to facilitate organic adjustment of the number of unit hulls, thus having better utilization of space and aiding to greatly expand the space. The sensitivity of the limit load to defects is low, increasing axial rigidity, improving the overall pressure-resistive ability.

Abstract: A bending and molding mechanism includes two bases, wherein the bases are provided with a transverse sliding rail, two transverse sliding bases are disposed on the transverse sliding rail in a sliding manner, the base is provided with a transverse driving device driving the transverse sliding bases, the base is provided with a central clamping device, the transverse sliding bases are provided with a longitudinal sliding rail, the longitudinal sliding rail is provided with a longitudinal sliding base, the transverse sliding bases are provided with a longitudinal driving device driving the longitudinal sliding base to slide, the longitudinal sliding base is provided with a bending and molding device, one side of the transverse sliding base at the left side is provided with a left clamping device, and one side of the transverse sliding base at the right side is provided with a right clamping device.

Abstract: A bending mold device for bidirectional pipe bending includes a mounting base which is horizontally arranged on a rack in a sliding manner. The mounting base includes a translation lead screw driving the mounting base to slide. The rack includes a lead screw nut. A pipe bending spindle is rotatably disposed on the mounting base and a power mechanism is disposed on the mounting base. The upper end of the pipe bending spindle is movably connected to a lower rotating base. The lower rotating base includes a first pipe bending shaft and a second pipe bending shaft, which respectively include a first bending mold lower mold and a second bending mold lower mold. The rack includes a cylinder above the lower rotating base. The end part of a piston rod of the cylinder fixedly includes an upper limiting plate and a lower limiting plate in a sleeving manner.

Abstract: A self-balancing pressure hull device, belonging to the field of pressure structure technology of deep-sea submersibles, being assembled by nesting, from inside to outside, a spherical inner housing, a spherical intermediate housing and a spherical outer housing around the sphere center, pairs of symmetric coaxial connecting shaft components being connected between the spherical inner housing and the spherical intermediate housing and between the spherical intermediate housing and the spherical outer housing, respectively; axes of the two pairs of connecting shaft components are perpendicular to each other so as to enable the spherical inner housing and the spherical intermediate housing to rotate relative to each other, and the spherical intermediate housing and the spherical outer housing to rotate relative to each other, and each of the connecting shaft components in the two pairs being provided with a spring damper for resisting the axial impact between each two adjacent housings.

Abstract: A moving-rotating linear covering tool, comprising a port, a primary oil cylinder, a piston rod, a rear end cover, a base sleeved on the right end of the primary oil cylinder, and a handle fixedly connected onto the outer cylinder of the base. The port is fixedly connected to the left end of the primary oil cylinder, the center thereof being provided with a circular hole that clearance-fits the piston rod arranged in the primary oil cylinder. A circular flange of the rear end cover is fixedly connected onto the right end face of the primary oil cylinder. The base is connected to a guide supporting sheath sleeved, in a clearance-fitted way, on the outer cylinder of the primary oil cylinder. A bearing seat is provided on the right end wall of the base Two screw holes are symmetrically provided at the right end face of the rear end cover.

Abstract: A moving-rotating linear covering tool, comprising a port, a primary oil cylinder, a piston rod, a rear end cover, a base sleeved on the right end of the primary oil cylinder, and a handle fixedly connected onto the outer cylinder of the base. The port is fixedly connected to the left end of the primary oil cylinder, the center thereof being provided with a circular hole that clearance-fits the piston rod arranged in the primary oil cylinder. A circular flange of the rear end cover is fixedly connected onto the right end face of the primary oil cylinder. The base is connected to a guide supporting sheath sleeved, in a clearance-fitted way, on the outer cylinder of the primary oil cylinder. A bearing seat is provided on the right end wall of the base Two screw holes are symmetrically provided at the right end face of the rear end cover.

Abstract: A self-balanced pressure hull device, belonging to the field of pressure structure technology of deep-sea submersibles, being assembled by nesting, from inside to outside, a spherical inner housing, a spherical intermediate housing and a spherical outer housing around the sphere centre, pairs of symmetric coaxial connecting shaft components being connected between the spherical inner housing and the spherical intermediate housing and between the spherical intermediate housing and the spherical outer housing, respectively; axes of the two pairs of connecting shaft components are perpendicular to each other so as to enable the spherical inner housing and the spherical intermediate housing to rotate relative to each other, and the spherical intermediate housing and the spherical outer housing to rotate relative to each other; and each of the connecting shaft components in the two pairs being provided with a spring damper for resisting the axial impact between each two adjacent housings.

Abstract: The present invention relates to a bending mold device for bidirectional pipe bending, comprising a mounting base which is horizontally arranged on a rack in a sliding manner, wherein the mounting base is provided with a translation lead screw driving the mounting base to slide and a translation motor, the rack is provided with a lead screw nut, a pipe bending spindle is rotatably disposed on the mounting base and a power mechanism is disposed on the mounting base, the upper end of the pipe bending spindle is movably connected to a lower rotating base, the lower rotating base is provided with a first pipe bending shaft and a second pipe bending shaft, the first pipe bending shaft and the second pipe bending shaft can be alternatively concentric with the pipe bending spindle through the sliding of the mounting base, the first pipe bending shaft is provided with a first bending mold lower mold, the second pipe bending shaft is provided with a second bending mold lower mold, the rack is vertically provided with

Abstract: A device and method for adjusting a fuel supply advance angle of a multi-cylinder diesel engine includes a gear chamber, a connecting disc and a fuel pump, wherein the gear chamber and the connecting disc are in the diesel engine, and the fuel pump is at a left end surface outside the gear chamber. A main shaft end of the fuel pump extends into the gear chamber. A right end surface of the connecting disc connects to a timing gear. A right end surface of the timing gear has three penetrating circular-arc waist-shaped holes. Annular sizing blocks are arranged on the waist-shaped holes. A penetrating circular hole is at a tail end of the waist-shaped holes. The circular hole is provided with a T-shaped nut. A support screw is arranged in the T-shaped nut, and the screw head of the support screw is jacked against the annular sizing block.

Abstract: The present invention discloses a bending and molding mechanism, comprising a base, wherein the base is provide with a transverse sliding rail, two transverse sliding bases are disposed on the transverse sliding rail in a sliding manner, the base is provided with a transverse driving device driving the transverse sliding bases, the base is provided with a central clamping device which can clamp the wire and can rotate around a central axis of the wire between the two transverse sliding bases, the transverse sliding bases are provided with a longitudinal sliding rail, the longitudinal sliding rail is provided with a longitudinal sliding base, the transverse sliding bases are provided with a longitudinal driving device driving the longitudinal sliding base to slide, the longitudinal sliding base is provided with a bending and molding device, one side, close to the central clamping device, of the transverse sliding base at the left side is provided with a left clamping device capable of movably extending to clam

Abstract: Disclosed is a crosshead component of a large diesel engine. The crosshead component consists of a crosshead pin (1), slide blocks (2), wear-resisting plates (3), sealing covers (4), and a sleeve (5), and has a structure with H-shaped cross and longitudinal sections. The crosshead pin (1) is a cylinder provided with petal-shaped through holes. The slide blocks (2) are respectively fitted on and connected to outer circles of left and right ends of the crosshead pin (1). The sleeve (5) is inserted in and connected to the petal-shaped through holes (112) of the crosshead pin (1) to form oil inlet/return way cavities. Left and right end surfaces of the crosshead pin (1) are respectively connected to the sealing covers (4) for sealing the oil way cavities. Front and back ends of the slide blocks (2) are respectively connected to the wear-resisting plates (3). The crosshead component has excellent interchangeability, economy and convenience.

Abstract: A device for adjusting a fuel supply advance angle of a multi-cylinder diesel engine includes a gear chamber (3), a connecting disc (5) and a high-pressure fuel pump (2), wherein the gear chamber (3) and the connecting disc (5) are assembled in the diesel engine, and the high-pressure fuel pump (2) is arranged at a left end surface outside the gear chamber. A main shaft end of the high-pressure fuel pump (2) extends into the gear chamber (3) and is connected to the connecting disc (5). A right end surface of the connecting disc (5) is connected to a timing gear (6) of a fuel injection pump. A right end surface of the timing gear (6) of the fuel injection pump is provided with three penetrating circular-arc waist-shaped holes (61) that are away from the center and equally spaced along the circumference direction. Annular sizing blocks (63) are arranged on the waist-shaped holes (61).

Abstract: Disclosed is a crosshead component of a large diesel engine. The crosshead component consists of a crosshead pin (1), slide blocks (2), wear-resisting plates (3), sealing covers (4), and a sleeve (5), and has a structure with H-shaped cross and longitudinal sections. The crosshead pin (1) is a cylinder provided with petal-shaped through holes. The slide blocks (2) are respectively fitted on and connected to outer circles of left and right ends of the crosshead pin (1). The sleeve (5) is inserted in and connected to the petal-shaped through holes (112) of the crosshead pin (1) to form oil inlet/return way cavities. Left and right end surfaces of the crosshead pin (1) are respectively connected to the sealing covers (4) for sealing the oil way cavities. Front and back ends of the slide blocks (2) are respectively connected to the wear-resisting plates (3). The crosshead component has excellent interchangeability, economy and convenience.