5 results about "Barrel Shaped" patented technology

The utility model provides a raised head rivet disassembling auxiliary device which comprises a guide sleeve (1), a drill rod (2), a first bearing (3), a drill rod spring (4), a second bearing (5), a four-claw sliding block (6), a sliding block spring (7) and a drill bit (8), the guide sleeve (1) is in a barrel shape, a straight hole is formed in the upper end of the barrel shape, and a step hole is formed in the lower end of the barrel shape and used for installing the second bearing (5), the drill rod (2), the drill rod spring (4) and the first bearing (3); four sliding grooves are formed in the outer surface of the lower end of the barrel shape and used for installing a four-claw sliding block (6) and a sliding block spring (7), and the guide sleeve (1) provides an installation supporting structure for other parts. The drill rod (2) is in a round straight rod shape with a boss in the middle, the upper end of the drill rod is installed in the first bearing (3), the lower surface of the boss makes contact with the upper end of the drill rod spring (4), the lower end of the drill rod is installed in the second bearing (5), the drill rod (2) is used for transmitting power, and the upper end of the drill rod is connected with a pneumatic tool and a drill bit (8).

The utility model provides a split type gear shaft, and belongs to the technical field of machinery. The problem that an existing gear shaft is not stable in structure is solved. The split type gear shaft comprises a gear and a shaft body arranged below the gear, a barrel-shaped connecting part is formed on the bottom wall of the gear, a connecting column is arranged at the upper end of the shaft body and inserted into the connecting part, the connecting column and the connecting part are connected in a matched mode through a spline, a circle of through holes are formed in the side wall of the connecting part in a radial penetrating mode, and a first threaded hole is formed in the connecting column in the radial direction. The number of the first threaded holes is the same as that of the through holes, a bolt is arranged in each through hole, the rod portion of each bolt is screwed into the corresponding first threaded hole, and a positioning column is further formed on the bottom wall of the gear and located in the connecting portion. An inserting hole is vertically formed in the top wall of the connecting column, the positioning column is inserted into the inserting hole, the first threaded holes are in a penetrating shape, second threaded holes are formed in the side wall of the positioning column, the second threaded holes and the first threaded holes are the same in number and correspond in position in a one-to-one mode, and the rod portion of the bolt is further screwed into the corresponding second threaded holes. The split type gear shaft is stable in structure.

The invention relates to a welding manipulator for a pipeline and a waterproof welding method thereof.The welding manipulator comprises a welding body, a control system and a rack, the rack comprises a sealing mechanism, a water pumping mechanism, a crawling mechanism and a barrel mechanism, and the barrel mechanism is arranged on the peripheral wall of the pipeline in a barrel-shaped sleeving mode; the two sealing mechanisms are located at the two ends of the barrel mechanism, the crawling mechanism is connected with the barrel mechanism and used for driving the barrel mechanism to move along a pipeline, the welding body and the water pumping mechanism are both connected with the barrel mechanism, and the sealing mechanisms, the water pumping mechanism and the crawling mechanism are all electrically connected with the control system. Due to the adoption of the technical scheme, when the welding manipulator for the pipeline is used for welding a damaged part of a submarine pipeline, the part needing to be welded can be isolated from seawater, the possibility that the seawater affects welding is reduced to a certain extent, and the welding efficiency is improved. And the welding quality is ensured to a certain extent.

The utility model discloses a kind of pneumatic hydraulic jack with pull rod type oil tank, it is related to jack technical field, including vehicle body, oil tank, air valve and switch, vehicle body includes base and wheel, and hydraulic cylinder, valve body and oil pump are provided on base;Vent hole, oil filler and oil outlet are provided on oil tank, axle holder is fixedly arranged on base, axle is fixedly arranged on axle holder, and wheel is rotatably arranged at the both ends of axle;Oil tank oil tank includes long barrel shape oil loading barrel and set first pipe fitting, first pipe fitting is rotatably connected on axle by being set first shaft hole on the lateral wall, and gripping portion is provided at the top of oil tank, further including locking mechanism for locking and unlocking the rotation of oil tank, locking mechanism includes several first insertion slot, second insertion slot, insertion pin, brake handle, brake cable and rebound mechanism, and oil tank forms push-pull piece for pushing and pulling vehicle body. It is lighter in weight and smaller in size, convenient for the whole jack to be towed, and convenient for the angle of oil tank to be adjusted.

The invention relates to the technical field of large-diameter ultra-deep socketed piles, and discloses large-diameter ultra-deep socketed pile all-casing and rotary excavating multi-stage combined barrel drill construction equipment. Comprising a casing pipe arranged in a soil layer, a rotary excavating barrel drill for drilling in the soil layer to form a soil layer hole, and a guide barrel drill for pre-drilling in a rock stratum to form a guide hole in the rock stratum, the multi-stage combined barrel drill is used for drilling in a rock stratum so as to sequentially and secondarily broach the guide hole to form an expansion hole; the broaching barrel drill is used for re-broaching the lower part of the expansion hole so as to enable the expansion hole to be in a straight barrel shape; the diameter of the reaming barrel drill is the same as that of the rotary excavating barrel drill, the diameter of the soil layer hole is the same as that of the expansion hole, and the soil layer hole and the expansion hole are communicated up and down to form a socketed pile hole; on the basis that the reaming precision is improved in reaming construction and the reaming effect is guaranteed, the hole shape after reaming meets the straight barrel-shaped requirement of the socketed pile.