Rolling mill and rolling-mill group
A technology for rolling mills and mills, applied in the fields of rolling mills and mills, can solve the problems of complicated reducers, and achieve the effect of compact transmission mechanism and small transmission loss.
Inactive Publication Date: 2005-10-05
JP STEEL PLANTECH CO +1
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- Abstract
- Description
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- Application Information
AI Technical Summary
Problems solved by technology
If a shell is added to a rolling mill, and the phase angle of the rolls is adjusted by changing the arrangement of the shell, the reducer will become very complicated
Method used
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Embodiment Construction
[0035] see figure 1 and 2 , first explain the basic structure of the rolling mill "A".
[0036]Rolling mill "A" is a four-roll structure having a pair of oppositely inclined rolls 1 and 1 and another pair of oppositely inclined rolls 1 and 1, the latter pair being positioned perpendicularly to the preceding pair. Four rolls 1 are distributed at 90° intervals around the hole of the rolling mill "A", and the workpiece is rolled into shape in the hole between them. A shaft 2 is fixed at the center of each roller 1 . Reference numeral 3 designates an annular housing, which houses a driving bevel gear 4, transmission mechanism 8, etc., which will be described in detail below. Housing 3 is divided into a front part 3a (in figure 1 has been removed) and a rear part 3b. The casing 3 will be described in detail below in conjunction with FIG. 3 .
[0037] Four rolls 1 are mounted on an inner shell, which in turn is accommodated in an outer shell 3 .
[0038] The shell 3 is gene...
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This invention provides a rolling mill and a rolling-mill train which are compact. Reducers to be coupled with them can be made compact. The inner surfaces of pipes to be rolled with the rolling mill and the rolling-mill train can be prevented from becoming squarish. The rolling mill comprises a plurality of rolls disposed symmetrically around the pathline of the rolling mill, an annular driving bevel gear of a large diameter for driving and rotating the rolls, an input-shaft mechanism for rotating the driving bevel gear, a plurality of transmission mechanisms disposed at regular intervals along the driving bevel gear, and a housing for holding them. The input-shaft mechanism (i) has an input shaft inserted in the housing from its outside and an input bevel gear of a small diameter mounted on the input shaft and engaging with the driving bevel gear and (ii) is disposed between two adjacent transmission mechanisms. With the input shaft disposed horizontally, the phase angle of the roll unit can be adjusted minutely.
Description
technical field [0001] The present invention relates generally to a rolling mill and a rolling train, and more particularly to a rolling mill and a rolling train for rolling workpieces into products such as steel rods, wires and steel pipes. The word "product" in this specification refers to a general concept including steel rod, steel wire and steel pipe. Background technique [0002] A multi-stage four-roll or three-roll rolling mill repeatedly rolls a workpiece in four or three directions, gradually reducing the cross-sectional area of the workpiece, thereby processing the workpiece into a desired shape with desired dimensions. [0003] Figure 9 and 10 show a typical four-high rolling mill used in the above rolling process. exist Figure 9 Among them, one input shaft 101 drives four rollers 102, 103, 104 and 105. The input shaft 101 is coupled with a roller 102 . Each of the four rollers 102, 103, 104 and 105 has bevel gears (102b, 103b, 104b or 105b, as the case ma...
Claims
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IPC IPC(8): B21B27/02B21B1/18B21B13/00B21B13/10B21B13/12B21B17/14B21B31/02B21B35/12B21B35/14
CPCB21B13/103B21B17/14B21B1/18B21B13/00
Inventor 越智重治藤原洋乾章丰冈高明板谷元晶依藤章大西寿雄菅野康二西田保夫田中伸树
Owner JP STEEL PLANTECH CO