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Single-driven input shaft draft-adjustable three-roll mill

A three-high rolling mill and reduction technology, which is applied in metal rolling stands, metal rolling mill stands, metal rolling and other directions, can solve the problems of low transmission accuracy and small reduction compensation, and achieve high dimensional accuracy of products. , the effect of low cost and simple structure

Inactive Publication Date: 2006-05-24
北京中冶设备研究设计总院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the patent uses equal-pitch screw transmission (linear displacement) to approximately compensate for small eccentric radial depression adjustment, its transmission accuracy is low, and the compensation for depression is small (only 0-2mm stepless compensation)

Method used

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  • Single-driven input shaft draft-adjustable three-roll mill
  • Single-driven input shaft draft-adjustable three-roll mill
  • Single-driven input shaft draft-adjustable three-roll mill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Figure 5 It is a schematic diagram of the mechanism of Embodiment 1 of a three-roll rolling mill with adjustable reduction of a single transmission input shaft of the present invention, as shown in Figure 5 As shown, the main transmission shaft 1 and two driven shafts 11 are respectively installed at 120° in the frame 8, a bevel gear 9 is fixedly installed on each of the three shafts, two bearings 10, and two bearings 12 are installed. , two bearings 14, roll rings 17 and other components, the roll system, the pressing device, etc., are characterized in that: the bevel gears on the three transmission shafts arranged at 120° are fixedly connected with the three shafts and are connected between the rolling mill transmission and The center line is always the same when pressing and adjusting, and an external gear 7 is fixedly installed on the main transmission shaft 1 and the two driven shafts 11, and the roller sleeve 6 with the internal gear and the roller sleeve 6 are ...

Embodiment 2

[0019] Embodiment 2: The structural feature of this embodiment is that the reduction synchronous adjustment mechanism of the three rollers is realized by the first stage gear transmission and the second stage worm gear (with eccentric sleeve) worm drive.

Embodiment 3

[0020] Embodiment 3: The structural feature of this embodiment is that the synchronous adjustment mechanism for the reduction of the three rollers is realized by the first-stage chain drive and the second-stage worm gear (with eccentric sleeve) worm drive.

[0021] The roll system adjustment mechanism of the three-roll rolling mill with adjustable reduction of the single transmission input shaft can be used for rolling ferrous metals and can also be used for rolling non-ferrous metals.

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Abstract

The present invention relates to a three-high rolling mill whose single drive input shaft reduction can be regulated. It includes machine frame, a main driving shaft and two driven shafts which respectively make an angle of 120deg. With said main driving shaft, bevel gears respectively mounted on said three groups of shafts, roll system formed from components of roll collar, etc. and screwdown device and screwdown setting mechanism. Said invention also provides the concrete structure of said main driving shaft and two driven shafts. Said invention can be used for rolling high-speed rod material, wire material and pipe material, its radial adjust size is 12mm.

Description

Technical field: [0001] The invention relates to the technical field of rolling metal rods, wires and pipes, in particular to a three-roll rolling mill with adjustable reduction of a single transmission input shaft. Background technique: [0002] The three-roll rolling mill, referred to as the KOCKS rolling mill, is a tension reducing machine pioneered by the German KOCKS company in 1947 and used for seamless pipes and welded pipes. In 1954, the rolling mill was used for three-roll reducing and sizing units for bars and wire rods. Whether it is used for tension reducing machine or for reducing and sizing mills for rods and wires, this type of three-roll rolling mill is composed of a single input shaft, and the three roll shafts are synchronously driven by two pairs of spiral bevel gears. Realize the rolling of rods, wires and pipes with fixed diameters ( figure 1 , figure 2 ), the advantages of this three-roll rolling mill are: 1. Due to the three-way compression, the de...

Claims

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Application Information

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IPC IPC(8): B21B13/08B21B13/10B21B31/16
Inventor 李克涵白四清
Owner 北京中冶设备研究设计总院有限公司
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