High-precision and heavy-load three-roller cold rolling mill
A high-precision, cold-rolling mill technology, applied in the direction of metal rolling stands, metal rolling mill stands, and driving devices for metal rolling mills, can solve the problems of reduced rolling precision, roll deflection, and insufficient rigidity. Achieve the effects of reducing longitudinal tensile stress, reducing longitudinal speed difference and improving surface quality
A high-precision, cold-rolling mill technology, applied in the direction of metal rolling stands, metal rolling mill stands, and driving devices for metal rolling mills, can solve the problems of reduced rolling precision, roll deflection, and insufficient rigidity. Achieve the effects of reducing longitudinal tensile stress, reducing longitudinal speed difference and improving surface quality
CN112222199AActive Publication Date: 2021-01-15TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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[0052] In order to further illustrate the technical solution of the present invention, the present invention will be further described below through examples.
[0053] Such as Figure 1 to Figure 28 As shown, a high-precision, heavy-duty three-roll cold rolling mill includes a transmission mechanism 1, a connecting rod mechanism 2 and a rolling host 3;
[0054] The transmission mechanism 1 includes a main motor 4, a final reducer 5, a transmission mounting frame 6, a No. 1 transmission main shaft 7, a No. 2 transmission main shaft 8, a No. 3 transmission main shaft 9, an energy supplement motor 59 and an energy supplement speed reducer 60. The output shaft of the main motor 4 is connected with the input shaft of the final reducer 5, the output shaft of the final reducer 5 is connected with the No. 1 transmission main shaft 7, and the output shaft of the energy supplementary motor 59 is connected with the energy supplementary motor 59. The input shaft of the speed reducer 60 i...
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Abstract
The invention belongs to the technical field of metal seamless pipe rolling and particularly relates to a high-precision and heavy-load three-roller cold rolling mill. The cold rolling mill comprisesa transmission mechanism, a connecting rod mechanism and a rolling main machine. An output shaft of a main motor is connected with an input shaft of a main speed reducer. An output shaft of the main speed reducer is connected with a first transmission main shaft. A first disc, a second disc, a third disc and a fourth disc which are the same are sequentially arranged in a transmission installing frame. The other end of the first transmission main shaft is connected with the middle portion of the first disc. The two ends of a second transmission main shaft are connected with the middle portion of the second disc and the middle portion of the fourth disc correspondingly. The first disc and the second disc as well as the third disc and the fourth disc are connected through transmission pin shafts arranged eccentrically. According to the cold rolling mill, by the adoption of combination of a heavy-load eccentric transmission manner, a multi-connecting-rod drive form and an overall rack structure form, the requirement for large-deformation and heavy-load rolling can be met, and the cold rolling mill is suitable for producing and preparing metal seamless pipes with large calibers and thick walls.
Description
technical field [0001] The invention belongs to the technical field of metal seamless pipe rolling, and in particular relates to a high-precision, heavy-duty three-roller cold rolling mill. Background technique [0002] Cold rolling of metal seamless pipes is one of the effective methods for producing high-precision and high-quality pipes. At present, the main structure of large-deformation cold-rolling equipment in China is a two-roll cold rolling pipe mill, which can realize the preparation of φ720mm metal seamless pipes. The roll cold rolling mill is a pair of rolls with continuously changing tapered grooves in cross-section, which can realize the rolling of metal pipes with large deformation. However, the frame of the two-roll cold rolling mill is a split structure, causing Deformation; the roll system is composed of upper and lower rolls, which causes the roll to deflect during the rolling process, the rigidity is insufficient, and the rolling mill equipment will suffer...
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Patent Timeline
15 Jan 2021
Publication
CN112222199A
- IPC
- B21B35/12; B21B31/30
- CPC
- B21B35/12; B21B31/30
- Inventors
- 楚志兵; 李恒