Portable hydraulic pipe bending machine

A pipe bender, a portable technology, applied in the field of portable hydraulic pipe benders, can solve problems such as tube bundle bending that cannot be solved, and achieve the effect of solving tube bundle bending problems, large bending moment, and small size

CN103316973AActive Publication Date: 2013-09-25TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2013-09-25

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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.
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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 ...

Examples

Embodiment Construction

[0017] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0018] Such as figure 1 , figure 2 As shown, the portable hydraulic pipe bender of this embodiment is mainly divided into the following parts:

[0019] Membrane (1), moving beam (2), tie rod (3), briquetting block (4), piston (5), pin shaft (6), small pin (7), high-pressure hose (8), manual hydraulic pump (9).

[0020] The connection relationship of each part is as follows: the tire membrane (1) is hinged with the tie rod (3) and the moving beam (2) through the pin shaft (6); ) is hinged; the piston (5) is located in the oil cylinder inside the membrane (1).

[0021] The characteristics of each part are as follows:

[0022] The membrane (1) is a C-shaped plane symmetrical struc...