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Multi-stand two-roll reducing unit

A multi-stand and unit technology, applied in the direction of metal rolling stand, metal rolling mill stand, driving device for metal rolling mill, etc., can solve the problems of poor flexibility and inability to adjust the size of wire pass, etc., and achieve simple and compact , Convenient organization of production, high adjustment flexibility

Inactive Publication Date: 2011-12-21
CHANGZHOU PENGTENG METAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the inability to adjust the online pass size and poor flexibility of the existing three-roller sizing and reducing machine, the present invention provides a multi-frame two-roller reducing unit

Method used

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  • Multi-stand two-roll reducing unit
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  • Multi-stand two-roll reducing unit

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Embodiment Construction

[0017] Such as figure 1 It is a structural schematic diagram of the present invention, figure 2 It is a structural schematic diagram of the reducing unit of the present invention, a multi-frame two-roller reducing unit, including a reducing unit 11 and a box body 3, including a transmission motor 1, a protective cover 2, a main transmission shaft 4, a transmission gear pair 5, The driven transmission shaft 6, the roll 7 and the bearing 8, the protective cover 2 is covered on the box body 3, the main transmission shaft 4 and the driven transmission shaft 6 are inserted in the box body 3, and are connected with the box body 3 through the bearing 8. One end of the transmission shaft 4 is connected with the motor 1, and the other end is sleeved in the bearing 8. The driven transmission shaft 6 is meshed with the main transmission shaft 4 through the transmission gear pair 5. There are two rollers 7, which are respectively sleeved on the main transmission shaft 4 and the main tran...

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Abstract

The invention relates to the technical field of seamless steel pipe hot rolling equipment, in particular to a multi-stand two-roller diameter reducing unit. It includes transmission motor, protective cover, box body, main drive shaft, transmission gear pair, driven drive shaft, rolls and bearings. The box body is equipped with bearing chamber and end cover, the bearing is installed in the bearing room, and the end of the bearing is equipped with an adjustment cover plate. Because the box body is processed by the overall frame structure, it has high rigidity and precision, and can meet the rolling requirements of general seamless steel pipes; the rolling of general small and medium wall thickness seamless steel pipes can be realized by replacing the rolls, which has a high The flexibility of online pass size adjustment makes it convenient for enterprises to organize production according to needs, and does not need to purchase various types of equipment, which reduces the production cost of seamless steel pipes to a certain extent.

Description

technical field [0001] The invention relates to the technical field of seamless steel pipe hot rolling equipment, in particular to a multi-stand two-roller diameter reducing unit. Background technique [0002] In the hot continuous rolling equipment of seamless steel pipes, the sizing and reducing machine is one of the key finishing equipment for the continuous rolling production of seamless steel pipes. The steel pipes after hot rolling need to be reduced, rounded and sized by the sizing and reducing machine. Finally rolled into small diameter seamless steel pipe products. At present, the most widely used sizing and reducing machine is the three-roller sizing and reducing machine. The three-roller type has a small peripheral speed difference of the roll pass, and the roundness of the steel pipe produced by the three-roller is relatively good, but generally the adjustment of the online pass size cannot be realized. The flexibility is poor, and it cannot meet the requirement...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B19/10B21B31/02B21B35/06
Inventor 陈忠良
Owner CHANGZHOU PENGTENG METAL PROD
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