Prevent structure of heat to attenuator conduction

The utility model discloses a prevent structure of heat to attenuator conduction, including attenuator (4) and output shaft (5), attenuator (4) are connected with output shaft (5) through thermal -insulated subassembly, and thermal -insulated subassembly comprises clamping ring (2) and heat insulating ring (1), and clamping ring (2) interior disc is connected with attenuator (4) cooperation, and the interior circle and the cooperation of clamping ring (2) excircle of heat insulating ring (1) are connected, and the excircle and the cooperation of output shaft (5) hole of heat insulating ring (1) are connected. The utility model discloses ensureing that the attenuator temperature keeps under the condition at the within range of normal work, heat insulating ring and clamping ring have fine intensity and machinability can, the exact fit of can ensure to insulate against heat subassembly and attenuator, and prevent that heat insulating ring and clamping ring during operation from producingunnecessary thing, influe