Portable hydraulic pipe bending machine

Abstract

The invention provides a portable hydraulic pipe bending machine. The portable hydraulic pipe bending machine comprises a molding bed, movable beams, pulling rods, pressure blocks, a piston, pin shafts, small pins, a manual hydraulic pump and a high pressure hosepipe; the molding bed is hinged to the pulling rods and the movable rods through the pin shafts; the pressure blocks are hinged to one ends of the pulling rods through the small pins; the piston is arranged in an oil cylinder which is arranged inside the molding bed; the manual hydraulic pump is used for providing oil pressure. A straight pipe is leaned on the molding bed through the two pressure blocks during operation, the manual hydraulic pump is repeatedly pressed to generate high pressure oil to drive the piston to move, the piston drives the movable beams to move, the movable beams drives the pulling rods which drive the pressure blocks to impose bending moments on the pipe to enable the pipe to be bent. The portable hydraulic pipe bending machine has the advantages of being portable, compact in structure, large in bending moment, applied to pipe bundle bending which has operational space constraint, not easy to generate defects such as pressuring marks, scratches and hollows on the pipe surface.

Description

technical field [0001] The invention relates to a portable hydraulic pipe bending machine with compact structure, large bending moment and limited operating space, which belongs to the technical field of pipe bending machines. Background technique [0002] At present, there are a large number of highly automated and high-precision pipe bending equipment on the market. The size of such equipment is usually large, with a length, width and height of several meters, and only straight pipes can be installed on the pipe bending equipment alone for bending. . For on-site bent pipes with limited operating space, such as but not limited to, each thick-walled straight pipe in the bent pipe bundle is parallel to each other, and the distance between them is only 3 to 5 times the outer diameter of the straight pipe. A bend with a bending radius of about 5 to 10 times the outer diameter of the pipe, and to ensure that the bent pipe and the pipe bender do not collide with the surrounding ...

AI Technical Summary

Problems solved by technology

For on-site bent pipes with limited operating space, such as but not limited to, each thick-walled straight pipe in the bent pipe bundle is parallel to each other, and the distance between them is only 3 to 5 times the outer diameter of the straight pipe. A bend with a bending radius of about 5 to 10 times the outer diameter of the pipe, and to ensure that the bent pipe and the pipe bender do not collide with the surrounding pipes during the bending process. The pipe bending equipment in the prior art cannot solve the above-mentioned operating space restrictions. Tube Bundle Bending Problem

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