Portable milling cutting device for pipe special-shaped hole and method
A cutting device and special-shaped hole technology, applied in milling machines, milling machine equipment, details of milling machine equipment, etc., can solve the problem of inconvenient opening of special-shaped holes, etc., and achieve the effect of light weight, small size, easy portability and installation
Inactive Publication Date: 2020-01-14
INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS
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Problems solved by technology
[0003] The purpose of the present invention is to provide a portable milling and cutting device and method for special-shaped holes in pipelines, so as to solve the problems in the prior art that pipeline installation and emergency repair sites need to use open flame flame cutting and it is inconvenient to open special-shaped holes, and realize pipeline installation and emergency repair. The purpose of mechanical milling and cutting of special-shaped holes
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[0029] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples and accompanying drawings. As a limitation of the present invention.
[0030] Such as Figure 1 to Figure 3 The shown is a portable milling and cutting device for special-shaped holes in pipes. There are 3 tensioning claws 1 in total, which are evenly distributed along the circumference and are connected to the fixed ring 2 through threads. Rotating the tensioning claw 1 can adjust the tensioning claw 1 and the fixing ring 2. relative position. There are 18 bearings 17, which are evenly distributed along the circumference, and the inner ring of the bearing 17 is in interference connection with the installation shaft on the fixed ring 2; The slewing ring 3 rotates together when the gear 16 rotates. The first drive device 15 is fixedly connected with the fixed ring 2, the pini...
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The invention discloses a portable milling cutting device for a pipe special-shaped hole and a method. The device comprises a milling power head, and further comprises a holding mechanism, a rotatingmechanism and a linear moving mechanism which are sequentially connected, wherein the holding mechanism is used for holding a pipeline to be machined, the rotating mechanism is used for rotating around the circumferential direction of the pipeline to be machined, the linear moving mechanism synchronously rotates with the rotating mechanism, the milling power head is arranged on the linear moving mechanism, and the linear moving mechanism is used for driving the milling power head to linearly move in the axial direction of the pipeline to be machined. According to the portable milling cutting device for the pipe special-shaped hole and the method, the problems that in the prior art, pipeline installation and emergency maintenance sites need to use an open flame to perform cutting, and the special-shaped hole is inconvenient to form are solved, and the purpose of special-shaped hole mechanical milling cutting forming at the pipeline installation and emergency maintenance sites is achieved.
Description
technical field [0001] The invention relates to the field of pipeline processing, in particular to a portable milling and cutting device and method for special-shaped holes in pipelines. Background technique [0002] In petroleum, nuclear power, chemical and other industries for pipeline installation or emergency repair work, it is necessary to cut intersecting lines, square holes or special-shaped holes before welding pipeline tees and elbows. The traditional method is to use flame cutting technology to cut intersecting lines, square holes or special-shaped holes. For pipelines transporting flammable fluids such as petroleum, nuclear power, and chemical industry, due to the high risk of open flame operations, it is necessary to remove combustibles in the pipeline and do sufficient safeguard work before construction, resulting in low operating efficiency. Moreover, it is inconvenient to set special-shaped holes in the prior art. Contents of the invention [0003] The pur...
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IPC IPC(8): B23C1/00B23C1/027B23C1/20B23C3/02B23C9/00
CPCB23C1/005B23C1/027B23C1/20B23C3/02B23C9/00
Inventor 张玉杰刘勇张安徐勤杰
Owner INST OF MACHINERY MFG TECH CHINA ACAD OF ENG PHYSICS