轧钢机械，用于轧机传动动力分配。二芯箱是用来将主减速机的扭矩传递分配给轧辊。二芯箱一般采用人字齿轮传动，传递扭矩较大。二芯箱由箱体、轴、人字齿轮等组成，传动比为1，齿轮节圆直径 等于二芯箱中心距。

Steel rolling machinery, used for the power distribution of rolling mill transmission. The two-core box is used to distribute the torque transmission of the main reducer to the rolls. Two-core boxes generally use herringbone gears for transmission, which can transmit a relatively large torque. The two-core box is composed of a box body, a shaft, herringbone gears, etc. Its transmission ratio is 1, and the pitch circle diameter of the gears is equal to the center distance of the two-core box

二芯箱主要零部件都经过精密加工，并通过精心组装和测试，因而噪声较低。在正确选型和正常维护的条件下使用寿命长。箱体类采用高强度铸钢保证箱体足够刚性，人字齿轮经过热处理提高齿面的硬度，提高了人字齿轮的使用寿命。

The main components of the two-core box have all undergone precise processing and have been carefully assembled and tested, thus resulting in relatively low noise. It has a long service life under the conditions of correct selection and normal maintenance. The box body type is made of high-strength cast steel to ensure sufficient rigidity of the box body. The herringbone gears undergo heat treatment to enhance the hardness of the tooth surface, thereby increasing the service life of the herringbone gears.

二芯箱轴的轴承用双列调心滚子轴承，滚动轴承摩擦损失小，维护方便。

The bearings of the two-core box shaft use double-row self-aligning roller bearings. Rolling bearings have small friction losses and are easy to maintain.

本产品还具有结构紧凑、外形美观、润滑条件好、传动效率高、传动准确可靠等优点，广泛用于轧钢生产线上。

This product also features a compact structure, an attractive appearance, good lubrication conditions, high transmission efficiency, and accurate and reliable transmission. It is widely used in steel rolling production lines.