Continuous full-wrapping equipment for pumping rod and wrapping method thereof

Abstract

The invention relates to continuous full-wrapping equipment for a pumping rod and a wrapping method thereof. The equipment comprises a wrapping unit, a cooling device and a pushing device. The wrapping unit is connected with an extruder which is provided with a heater used for heating wrapping materials into a molten state, and the wrapping materials are adsorbed to the surface of the pumping rod through vacuum at the wrapping unit. The method sequentially includes the following steps that (1) the heater is used for heating the wrapping materials into the molten state, and the wrapping materials are extruded into the wrapping unit; (2) the pushing device is started to push the pumping rod into the wrapping unit, and the pushing speed is adjusted according to the section shape of the part passing through the wrapping unit; and (3) the wrapping materials are adsorbed to the surface of the pumping rod through vacuum at the wrapping unit. By means of the continuous full-wrapping equipment for the pumping rod and the wrapping method thereof, continuous equal-thickness full wrapping of the pumping rod is achieved, a mold structure and specific wrapping steps for wrapping objects in irregular shapes are simplified, and the pumping rod with a special-shaped section is directly, continuously and fully wrapped under the condition that the structure of the pumping rod is not changed.

Description

technical field [0001] The invention relates to the field of sucker rods, in particular to continuous full-coating equipment for sucker rods and a coating method thereof. Background technique [0002] In the related technology, the mechanical properties of the steel sucker rod are excellent, but the wear resistance and corrosion resistance of the metal are low, which cannot cope with the harsh environment of the mine, resulting in a greatly shortened service life of the sucker rod and affecting the normal production of the oil field . In order to solve the corrosion and wear problems of the sucker rod, the surface of the sucker rod will be coated with wear-resistant and corrosion-resistant materials to increase the wear resistance and corrosion resistance of the sucker rod and prolong its service life. However, some sucker rods have special-shaped surfaces and different cross-sectional sizes, and the structure of the mold used for coating is complex, so it is impossible to ...

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Problems solved by technology

[0003] In view of the above problems, the object of the present invention is to provide a continuous full coating equipment and method for sucker rods, which solves the problem that some sucker rods have special-shaped surfaces and have different cross-section sizes, and the mold structure used for coating is complicated, which cannot be solved. Sucker rods are fully coated with equal thickness, which affects the technical problems of the coating efficiency and performance of the sucker rods

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