Mounting structure for graphite cylinder of heating chamber of high-temperature round hearth vacuum furnace

The utility model belongs to the technical field of high-temperature vacuum furnace equipment, and particularly relates to a mounting structure for a graphite cylinder of a heating chamber of a high-temperature round-hearth vacuum furnace. The structure comprises a linear driving mechanism, an arc plate support and a cross-shaped support, the arc plate support is arranged in a heating chamber and used for supporting a heat preservation layer of the heating chamber, and a graphite cylinder can conveniently enter the heating chamber from one end of the heating chamber; the linear driving mechanism and the cross-shaped support are arranged at the two ends of the heating chamber respectively, and the cross-shaped support is located on the outer side of the graphite cylinder. The linear driving mechanism is connected with the cross-shaped support and used for driving the cross-shaped support to move in the direction close to the heating chamber till the cross-shaped support pushes the graphite cylinder into the he