A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ELECTRIC CYLINDER, AND WORK MACHINE
To effectively release heat from a motor and heat on a sun gear tooth surface to an outside.SOLUTION: An electric cylinder comprises: a motor which is a drive source; an output shaft rotating as the motor is driven; a sun gear coupled to the output shaft and rotating as the output shaft rotates; a cylindrical holder disposed adjacently to an axial end surface of the motor and having a fluid storage portion in which a magnetic fluid can be stored between itself and the outer circumference of the sun gear; a pair of pole pieces provided on an inner circumferential surface of the holder; and a magnet disposed between the pair of pole pieces and retaining the magnetic fluid in the fluid storage portion by an action of a magnetic field.SELECTED DRAWING: Figure 17
【課題】モータからの熱とサンギヤ歯面の熱とを外部へ効率的に逃がすことができる。【解決手段】電動シリンダは、駆動源であるモータと、前記モータの駆動により回転する出力軸と、前記出力軸に連結され、前記出力軸の回転により回転するサンギヤと、前記モータの軸方向端面に隣接して配置され、前記サンギヤの外周との間に磁性流体を収容可能な流体収容部を有する筒状のホルダと、前記ホルダの内周面に設けられた一対の磁極片と、前記一対の磁極片の間に配置され、磁場の作用により前記磁性流体を前記流体収容部に保持する磁石と、を備える。【選択図】図１７
ELECTRIC CYLINDER, AND WORK MACHINE
To effectively release heat from a motor and heat on a sun gear tooth surface to an outside.SOLUTION: An electric cylinder comprises: a motor which is a drive source; an output shaft rotating as the motor is driven; a sun gear coupled to the output shaft and rotating as the output shaft rotates; a cylindrical holder disposed adjacently to an axial end surface of the motor and having a fluid storage portion in which a magnetic fluid can be stored between itself and the outer circumference of the sun gear; a pair of pole pieces provided on an inner circumferential surface of the holder; and a magnet disposed between the pair of pole pieces and retaining the magnetic fluid in the fluid storage portion by an action of a magnetic field.SELECTED DRAWING: Figure 17
【課題】モータからの熱とサンギヤ歯面の熱とを外部へ効率的に逃がすことができる。【解決手段】電動シリンダは、駆動源であるモータと、前記モータの駆動により回転する出力軸と、前記出力軸に連結され、前記出力軸の回転により回転するサンギヤと、前記モータの軸方向端面に隣接して配置され、前記サンギヤの外周との間に磁性流体を収容可能な流体収容部を有する筒状のホルダと、前記ホルダの内周面に設けられた一対の磁極片と、前記一対の磁極片の間に配置され、磁場の作用により前記磁性流体を前記流体収容部に保持する磁石と、を備える。【選択図】図１７
ELECTRIC CYLINDER, AND WORK MACHINE
電動シリンダ及び作業機械
IITANI HIDEFUMI (author) / AKAZAKI SHOTA (author)
2023-08-01
Patent
Electronic Resource
Japanese