The invention discloses a device and method for maintaining a load position unchanged, the device comprises lower telescopic units, a box body, a
rope, a side edge steering unit, a center switching mechanism, an upper telescopic unit and a fixing clamp, the fixing clamp used for clamping the
rope is installed in the middle of the bottom end of the box body, and a plurality of lower telescopic units are installed at the bottom end of the box body; a plurality of lower telescopic units are installed on the top of the box body and distributed in an array mode, a center switching mechanism is installed in the middle of the box body, a plurality of upper telescopic units are installed on the top of the box body and distributed in an array mode, and side edge steering units are installed on the two sides of the top of the box body. The device is suitable for the transmission
balance test on the
single crystal furnace, and is also suitable for occasions where the upper end is continuously lifted, the load weight is increased and the position is not changed, the load does not need to be designed to be equal to a
crystal silicon rod in length or equal to a furnace body in
diameter, and space conflicts between the load and the furnace body and between the load and an auxiliary chamber are avoided.