Screw down device of working rolls of four-roll rolling mill

A technology of a pressing device and a four-roll rolling mill, which is applied in the direction of metal rolling stands, metal rolling mill stands, and metal rolling, can solve the problems of large space occupation and huge structural mechanism, and achieve the goal of saving space and maintaining gaps Effect

Inactive Publication Date: 2011-01-19
TIANJIN JINZHONG HEAVY MACHINE & EQUIP MFG
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure mechanism of the above-mentioned device is huge and takes up a lot of space

Method used

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  • Screw down device of working rolls of four-roll rolling mill
  • Screw down device of working rolls of four-roll rolling mill
  • Screw down device of working rolls of four-roll rolling mill

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Embodiment Construction

[0010] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. as the picture shows,

[0011] A four-high rolling mill work roll pressing device, comprising a rolling mill archway 1 and a bearing seat 2 of an upper support roll placed therebetween, the center of the bearing housings corresponding to the left and right upper support rolls on the rolling mill archway are respectively provided with round holes for suspenders 3. A hydraulic cylinder hollow boom 4 is placed in the round hole of the boom. The upper end of the hollow boom of the hydraulic cylinder passes through the gland 5 placed on the top of the round hole of the boom and is connected by a nut 9. The lower end of the hollow boom of the hydraulic cylinder It is connected with the depressing oil cylinder, and the piston of the depressing oil cylinder is in contact with the top of the bearing seat of the upp...

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Abstract

The invention relates to a screw down device of working rolls of a four-roll rolling mill. The device comprises rolling mill memorial archways and bearing blocks arranged between the rolling mill memorial archways of upper supporting rolls. The device is characterized in that the rolling mill memorial archways are respectively provided with a round suspender hole corresponding to the centers of the gearing blocks of the left upper supporting rolls and the right supporting rolls; each round suspender hole is internally provided with a hydraulic cylinder hollow suspender, and the upper end of each hydraulic cylinder hollow suspender passes through a press cover at the top of the round suspender hole and is connected through a nut; the lower end of each hydraulic cylinder hollow suspender is connected with a screw down oil cylinder; and a piston of the screw down oil cylinder is in contact with the upper sides of the bearing blocks of the upper supporting rolls. The invention has the advantages that a hydraulic cylinder is used for replacing a worm gear-worm screw mechanism screw down device, thus not only the space can be saved, but also the gap of the working rolls can be automatically regulated and adjusted by utilizing a sensor to stably maintain the gap of the working rolls.

Description

technical field [0001] The invention belongs to rolling mills, in particular to a pressing device for working rolls of a four-high rolling mill. Background technique [0002] At present, the pressing device of the rolling mill adopts the motor to drive the reducer and the worm and gear mechanism to rotate and press down the screw pair to adjust the bearing seat of the upper back-up roll, and can adjust the gap of the work roll. Application number: 200510012594.9 discloses a large-scale rolling mill pressing screw mechanism, which is characterized in that the pressing screw cooperates with the main and auxiliary nuts, and the main and auxiliary nuts installed in the frame are connected by bolts with compression springs at the root , The lower part of the pressing screw matches the spherical pad, and the thread profile of the pressing screw and the main and auxiliary nuts is trapezoidal. The advantage is that the contact surface between the depressing screw and the thread te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B31/16
Inventor 马宏聂亚超
Owner TIANJIN JINZHONG HEAVY MACHINE & EQUIP MFG
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