Device and method for manufacturing bell end of socket type steel pipe
The technology of a manufacturing device and manufacturing method, which is applied in the field of manufacturing devices for socket-type steel pipe sockets, can solve the problems of wasting steel pipe materials, increasing manufacturing costs, and increasing manufacturing costs, so as to avoid free deformation, have a simple structure, and reduce manufacturing costs Effect
Active Publication Date: 2020-03-10
BC P INC CHINA NAT PETROLEUM CORP +2
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Problems solved by technology
[0005] When using a steel pipe expanding machine for diameter expansion, if no mold constraints are imposed on the outer wall of the steel pipe end and the steel pipe end is allowed to deform freely, the socket will be too large and too long, which will waste steel pipe material and increase manufacturing costs.
Also, if molds are used for constraints, it will also increase manufacturing costs
Method used
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Embodiment Construction
[0053] Unless otherwise defined, all technical terms used in the embodiments of the present invention have the same meanings as commonly understood by those skilled in the art.
[0054] The socket of the steel pipe may include a connected lead-in section and a sealing section, the inner diameter of the lead-in section is larger than the outer diameter of the socket of the steel pipe, which facilitates the insertion of the socket into the socket. The inner diameter of the sealing section is equal to the outer diameter of the socket, so as to facilitate the sealing between the two. In addition, a sealing ring may be provided between the socket of the steel pipe and the socket of the steel pipe so that the two have good sealing performance.
[0055] The socket of the steel pipe can be made by spinning, which is gradually formed by rotating and applying pressure. This forming method has low pressure, which can save equipment investment and use cost, and has flexible production. ...
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The invention discloses a device and method for manufacturing a bell end of a socket type steel pipe, and belongs to the field of pipeline machining. The manufacturing device comprises an upper roll mechanism, a lower roll mechanism, a rotating driving mechanism, a jacking mechanism, a base and a control mechanism. The upper roll mechanism and the lower roll mechanism are arranged in a verticallyopposite manner. A bell end pressing groove for pressing the bell end of the steel pipe is formed between the upper roll mechanism and the lower roll mechanism. The rotating driving mechanism is in transmission connection with the upper roll mechanism through a transmission part. The lower roll mechanism is rotationally arranged on the base. The jacking mechanism is connected with the bottom wallof the base and used for vertically jacking and pulling the base and the lower roll mechanism. The control mechanism is electrically connected with the rotating driving mechanism and the jacking mechanism. The manufacturing device is simple in structure, steel pipes of different sizes and specifications can be machined, steel pipe materials are prevented from being wasted, and the manufacturing cost is reduced.
Description
technical field [0001] The invention relates to the field of pipeline processing, in particular to a manufacturing device and method for socket-type steel pipe sockets. Background technique [0002] In the construction of pipelines such as municipal water supply, multi-section steel pipes are welded to form water pipelines. However, the welding method increases installation costs and is time-consuming and laborious. By setting a socket at one end of the steel pipe and a socket at the other end of the steel pipe, the outer diameter of the socket is smaller than the inner diameter of the socket. The socket on one steel pipe is inserted into the socket on another steel pipe to realize the connection between the steel pipes. The steel pipes are connected by sockets, which reduces the installation cost, saves time and labor, and is economical and practical. Therefore, it is necessary to manufacture steel pipes with sockets or sockets. [0003] In the related art, usually one e...
Claims
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IPC IPC(8): B21D41/02
CPCB21D41/02
Inventor 王勇付彦宏王强李立何志伟方文冯伟华李德伟
Owner BC P INC CHINA NAT PETROLEUM CORP