A mechanical extrusion molding device for thimble heat transfer tubes

Abstract

The invention relates to a mechanical type extrusion forming device for a dimple heat transfer tube. The extrusion forming device is composed of motor driving systems, transmission systems, rack systems and pressure head systems. The extruding and forming device is characterized in that the transmission systems are connected with the motor driving systems, cover plates on the right ends of the transmission systems are connected with the rack systems through bolts, and clamping jaws on the left ends of the transmission systems are connected with the pressure head systems through bolts; and when the extruding and forming device works, small bevel gears engage with the bevel teeth of large bevel gears, the large bevel gears engage with the plane threads of the clamping jaws, the rotating motion of motors can be converted into the radial movements of the pressure head systems, and therefore pressure heads extrude polished tubes. Compared with the prior art, a plurality of sets of pressure heads are adopted to extrude the polished tubes, structural parameters such as the height, shape, number and installation distance of the pressure heads are changed, the dimple heat transfer tubes with different structural parameters can be manufactured, the processing and manufacturing efficiency is high, and the production cost is low; and in addition, synchronism of the motion of the pressure heads can be achieved through the planar screw drive, and therefore the consistency of the extruded dimple structural parameters is guaranteed.

Description

technical field [0001] The invention relates to the field of processing and forming heat transfer tubes, in particular to a mechanical extruding device for heat transfer tubes. Background technique [0002] Heat transfer is a very common natural phenomenon and a common process in industries such as power, nuclear energy, electronics, transportation, refrigeration, chemical, petroleum, aerospace, etc. The heat exchanger occupies a key position in the above-mentioned industries. The heat exchanger is not only an indispensable part to ensure the normal operation of the entire engineering equipment, but also occupies an important share in the entire project in terms of metal consumption, power consumption and capital investment. . Taking a power plant as an example, if the boiler is also used as heat exchange equipment, the capital investment of the heat exchanger accounts for about 70% of the total investment of the power plant; in petrochemical industry, the investment of the...

AI Technical Summary

Problems solved by technology

[0005] However, although there are many kinds of heat transfer tube processing and manufacturing devices, there is currently no extruding device suitable for thimble heat transfer tubes, and most of them are hydraulic extrusion devices.

The hydraulic type device is easy to leak hydraulic oil and pollute the environment, and the synchronization of the hydraulic system is not easy to guarantee. Therefore, a new type of extrusion molding device is urgently needed to solve the above problems

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