軋機前后有對中導(dǎo)衛(wèi)的升降輥道，可保證軋件正確進入軋機。三架軋機的輥系和軸承座同步更換，更換平臺在軋線外側(cè)，換輥時間長只用20min。傳動側(cè)的牌坊，通過液壓方式，由張力螺桿鎖定，操作側(cè)的牌坊為“可拉出”式，軋件導(dǎo)衛(wèi)固定在水平軋機的軸承座上。Rollmillisthemostwidelyusedinthreetypes。

A lift roller of the guide in the time before and after the mill, rolling mill can ensure the correct entering. The roll system of three rolling mills is replaced synchronously with the bearing seat, and the replacement platform is on the outside of the rolling line. The longest time for changing the roll is only 20min. The movable side arch is locked by tension screw, and the operation side arch is "pull-out" type, and the rolling guide is fixed on the bearing seat of the horizontal rolling mill.

驅(qū)動電機斜置在鋸機底座上，通過傘齒輪及主傳動軸帶動鋸片，鋸片由液壓裝置鎖緊在傳動軸上。鋸片進鋸由液壓驅(qū)動，進鋸速度根據(jù)鋸切阻力由比例閥調(diào)節(jié)。當(dāng)軋件斷面較大、鋸切阻力高時，進鋸速度慢，反之，進鋸速度塊。

The driving motor is inclined on the base of the saw machine, and the saw blade is driven through the bevel gear and the main drive shaft, and the saw blade is locked on the drive shaft by the hydraulic device. The sawing saw is driven by hydraulic pressure, and the speed of the saw is adjusted by the proportional valve according to the cutting resistance. When the section of the rolled piece is large and the cutting resistance is high, the speed of the saw is slow, and conversely, the speed block of the saw.

在軋機設(shè)置了上軋輥動態(tài)軸向調(diào)整。軋機調(diào)零后，可以測量和存儲上探頭到上輥軸及下探頭到下輥軸的距離。軋制過程中立輥如失去平衡而引起上輥或下輥的竄動，上輥會與下輥同步調(diào)整，從而保證上、下腹板對中并控制腹板和翼緣的尺寸。

There is a dynamic axial adjustment of the upper roll on the universal rolling mill. After the rolling mill is zero, the distance between the upper roll shaft and the lower probe can be measured and stored. During the rolling process, if the neutral rolls lose balance, the upper roller or the lower roll will move. The upper roller will synchronize with the lower roller, so as to ensure the upper and lower plate alignment and  the dimensi of web and flange.

四棍軋機的工作輥直徑較小，傳遞軋制力矩，軋延壓力由直徑較大的支承輥承受。這類設(shè)備的主要優(yōu)點是相對剛度較大，壓下量大、軋延力小，可軋制較薄的板材，也包括有可逆和連軋兩種。

The working roll diameter of the four bar mill is small, and the rolling torque is transferred. The rolling pressure is borne by the backup roller with larger diameter. The main advantages of this type of equipment are relatively large stiffness, large reduction, low rolling force, thin rolled sheets, and reversible and continuous rolling two.