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Sizing machine

A technology for sizing mills and racks, which is applied in the direction of metal rolling racks, metal rolling mill stands, metal rolling, etc., can solve the problems of large volume and weight of roll stands, long process time, and increased costs, and achieve Reduced workload, reduced production costs, and the effect of saving production costs

Active Publication Date: 2015-12-23
LIAOCHENG ANTAI PETROLEUM MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sizing machine mainly includes a plurality of roll stands arranged in parallel on the rolling position, a transmission device for driving each roll stand, and a roll changing device. However, when the existing sizing machine rolls steel pipes, its multiple roll stands All the roll stands of the sizing machine are of the same specification. When it is necessary to roll steel pipes of different specifications, it is necessary to replace all the roll stands of the sizing machine with new roll stands of corresponding specifications at the same time through the roll changing device. Because the volume and weight of the roll stands are relatively large Large, the process of replacing the roll stand is long and cumbersome, which increases the cost of production

Method used

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Embodiment Construction

[0018] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] see Figure 1 to Figure 3 , a sizing machine according to a preferred embodiment of the present invention includes a first transmission device 1, a second transmission device 2, a first stand 3, a first roll stand 4, a second stand 5 and a second roll Stand 6, the first roll stand and the second roll stand are arranged in sequence along the rolling direction of the steel pipe, and the first roll stand is fixedly arranged on the first stand, and the second roll stand is fixedly arranged on the second stand On the seat, the outer diameter of the largest blank tube that can be rolled in the first roll stand is greater than the outer diameter of the largest blank tube ...

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Abstract

The invention relates to a sizing machine. According to the sizing machine, the number of replaced roller machine frames can be decreased, and the production cost can be saved accordingly. The sizing machine comprises first transmitting devices, second transmitting devices, a first machine base, first roller machine frames, a second machine base and second roller machine frames. The first roller machine frames and the second roller machine frames are sequentially arranged in the rolling direction of steel pipes, the first roller machine frames are fixedly arranged on the first machine base, and the second roller machine frames are fixedly arranged on the second machine base. The outer diameters of largest billet pipes which can be rolled through the first roller machine frames are larger than the outer diameters of largest billet pipes which can be rolled through the second roller machine frames. An inlet archway is arranged on the outer side face of the first machine base, and an outlet archway is arranged on the outer side face of the second machine base. Output shafts of the first transmitting devices are connected with input shafts of the first roller machine frames, the number of the second transmitting devices is equal to the number of the second roller machine frames, and output shafts of the second transmitting devices are connected with input shafts of the second roller machine frames.

Description

technical field [0001] The invention relates to a seamless steel pipe production equipment, in particular to a sizing machine. Background technique [0002] The sizing machine is a kind of equipment widely used in the field of seamless steel pipe production. It is mainly used for sizing and rolling the blank pipes rolled by the pipe rolling mill to obtain seamless steel pipes with high-precision external dimensions. The sizing machine mainly includes a plurality of roll stands arranged in parallel on the rolling position, a transmission device for driving each roll stand, and a roll changing device. However, when the existing sizing machine rolls steel pipes, its multiple roll stands All the roll stands of the sizing machine are of the same specification. When it is necessary to roll steel pipes of different specifications, it is necessary to replace all the roll stands of the sizing machine with new roll stands of corresponding specifications at the same time through the ro...

Claims

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Application Information

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IPC IPC(8): B21B31/02B21B19/10
Inventor 张志玉高万峰刘怀玉李凤魁李万明宋来柱周建超
Owner LIAOCHENG ANTAI PETROLEUM MACHINERY
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