本发明公开了一种基于连杆式虚拟转轴的电弧炉炉壁枪活动支架结构，解决了现有技术中炉壁枪安装、调整困难，炉壁开孔过大的技术问题。本发明的电弧炉炉壁枪活动支架结构包括炉壁枪夹持单元、连杆机构、驱动单元以及连杆机构固定单元；炉壁枪夹持单元用于夹持和支撑炉壁枪枪体，连杆机构的一端与第一转轴和第二转轴销接，连杆机构的另一端与炉壁枪夹持单元销接；驱动单元的第一端与第二转轴连接，第二端与连杆机构连接；通过驱动单元的伸缩动作带动连杆机构、炉壁枪夹块运动，进而带动炉壁枪枪体运动。本发明通过设计电弧炉炉壁枪活动支架结构从而简化了枪体安装，缩短枪体整体长度，最终减少了电弧炉炉壁开孔尺寸。

The present invention discloses a movable support structure for an electric arc furnace wall gun based on a connecting rod type virtual rotating shaft, which solves the technical problems of difficult installation and adjustment of the furnace wall gun and excessive opening of the furnace wall in the prior art. The movable support structure of the electric arc furnace wall gun of the present invention includes a furnace wall gun clamping unit, a connecting rod mechanism, a driving unit, and a connecting rod mechanism fixing unit; The furnace wall gun clamping unit is used to clamp and support the furnace wall gun body. One end of the connecting rod mechanism is pin connected to the first and second rotating shafts, and the other end of the connecting rod mechanism is pin connected to the furnace wall gun clamping unit; The first end of the driving unit is connected to the second shaft, and the second end is connected to the connecting rod mechanism; The telescopic action of the driving unit drives the linkage mechanism and the clamping block of the furnace wall gun to move, thereby driving the movement of the furnace wall gun body. The present invention simplifies the installation of the gun body, shortens the overall length of the gun body, and ultimately reduces the opening size of the arc furnace wall by designing a movable bracket structure for the arc furnace wall gun.