SPEED REDUCING DEVICE FOR TWIN-SCREW KNEADING EXTRUDER

To provide a speed reducing device for a twin-screw kneading extruder capable of stably monitoring torque over a long period of time.SOLUTION: Provided is a speed reducing device 3 for a twin-screw kneading extruder 1. The speed reducing device 3 comprises a speed reducer 4 and a calculation unit 8. The speed reducer 4 is provided with an input shaft 43 driven by a motor 9, transmission shafts 45,47,49 driven by the input shaft 43, a first output shaft 41 and a second output shaft 42 driven by the transmission shaft 45,47,49, and a first bearing member 61 and second bearing member 62 that receive these shafts 41,42. A strain measuring instrument 7 is installed on the first bearing member 61. A calculation unit 8 is provided with a first torque calculation unit 81 for calculating torque of the first output shaft 41 from strain measured by the strain measuring instrument 7, and a second torque calculation unit 82 for calculating torque of the second output shaft 42 from the torque of the first output shaft 41 and torque of the input shaft 43.SELECTED DRAWING: Figure 1 【課題】長期間にわたって安定してトルクを監視することが可能な二軸混練押出機の減速装置を提供する。【解決手段】二軸混練押出機１の減速装置３であり、減速装置３は減速機４および演算部８を具備する。減速機４は、モータ９で駆動される入力軸４３と、入力軸４３で駆動される伝達軸４５，４７，４９と、伝達軸４５，４７，４９で駆動される第１出力軸４１および第２出力軸４２と、これら４１，４２を受ける第１軸受部材６１および第２軸受部材６２とを備える。第１軸受部材６１にひずみ計測器７が設置される。演算部８は、ひずみ計測器７で計測されたひずみから第１出力軸４１のトルクを算出する第１トルク算出部８１と、第１出力軸４１のトルクおよび入力軸４３のトルクから第２出力軸４２のトルクを算出する第２トルク算出部８２とを備える。【選択図】図１