Micro-scale six-roller mill with static stability

A six-high rolling mill, micro-scale technology, applied in the direction of metal rolling stand, metal rolling mill stand, metal rolling, etc., can solve the problems of micro-scale instabilities, achieve the elimination of super large axial force, stable operation, The effect of extending the service life

Active Publication Date: 2011-06-29
中重科技(天津)股份有限公司
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  • Abstract
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Problems solved by technology

[0003] In order to solve the disadvantages of micro-scale static indetermination existing in the roll system of the existing thin-strip six-high rolling mill, the present invention provides a micro-scale static six-high rolling mill

Method used

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  • Micro-scale six-roller mill with static stability
  • Micro-scale six-roller mill with static stability
  • Micro-scale six-roller mill with static stability

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Embodiment Construction

[0025] figure 1 It is a 650mm microscale static determinate six-high rolling mill disclosed by the present invention. The six-roll rolling mill includes a driving motor, a reducer, a gear stand and a frame 1, and the parallel positioning device of the six-roll rolling mill presses the four bearing seats of the upper and lower back-up rolls (2, 7) against the On the side slide plate 13 of the frame column, the eight bearing seats of the upper and lower intermediate rolls (3, 6) and the upper and lower work rolls (4, 5) are pressed against the intermediate roll bending device block 20 , the axes of the six rolls are located on the same vertical plane, that is, the offset distance between the six rolls is zero, that is, e=0.

[0026] The structures of the parallel positioning devices of the upper and lower back-up roll systems (2, 7) are the same, wherein the back-up roll hydraulic cylinder I 10 and the back-up roll hydraulic cylinder II11 are respectively set on the upper and l...

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Abstract

The invention discloses a micro-scale six-roller mill with static stability. The six-roller mill is characterized in that parallel positioning devices are utilized to position the axial lines of six rollers of upper and lower bearing roller systems (2, 7), upper and lower middle roller systems (3, 6) and upper and lower working roller systems (4, 5) in the same vertical plane, i.e., the offset distance among the six rollers is zero. A micro-scale mechanism with static stability is arranged between the upper and lower bearing roller system (2, 7); and a micro-scale eccentric shaft mechanism with static stability is arranged between the middle roller operating side end cover (35) and middle roller axial moving mechanism of the upper and lower middle roller systems (3, 6). In the invention, a rolling mill roller system can maintain the equivalent static-stability condition of a mechanism under the condition of alternating the running state of no load during rolling intermission and high load during rolling, and the dynamic micro-scale crossing behavior of two rollers of bearing base kinematic pair with a backlash under an external interference moment is prevented so that the radial loadings of each line of rollers of the columnar rolling bearing are uniformly distributed to prolong the service life, therefore, the safe and stable operation of the six-roller mill can be realized under a heavy-load and high-speed condition.

Description

technical field [0001] The invention relates to the technical field of heavy metallurgical machinery, in particular to a micro-scale static deterministic six-high rolling mill. Background technique [0002] The roll system of the modern six-high rolling mill for rolling thin strips is a micro-scale statically indeterminate mechanism, which includes two aspects, 1) The unavoidable clearance required for the convenience of roll replacement and assembly and compensation for the thermal expansion of the bearing seat becomes the rolling condition The source of the static instability (instability) of the roll system, plus the "parallel positioning" offset setting between the axes of the six rolls cannot achieve the setting effect, and the initial crossing and dynamic micro-scale crossing phenomena will inevitably occur between the rolls, resulting in super large axial force And the deviation of the rolling support reaction force. The variation range of the micro-scale crossing an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B13/02B21B31/00
Inventor 申光宪肖宏李明郑永江谢红飙马景良赵永和
Owner 中重科技(天津)股份有限公司
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