| 摘要 |
The present invention relates to a disconnecting device for a four-wheel drive vehicle, capable of pushing a sleeve with small torque by installing a cam on an input shaft and evenly pushing the sleeve and of preventing a torsion force from being generated. The disconnecting device for a four-wheel drive vehicle also improves fuel efficiency and enables rapid connection by reducing power consumption and enabling rapid connection by using an elastic force of a spring and power of a motor in a connection operation. The disconnecting device for a four-wheel drive vehicle includes: an input shaft having a spline gear on the outer circumference at one end; an output shaft parallel to the input shaft and having the spline gear on the outer circumference at one end facing the input shaft; a sleeve spline-connected to the gear unit of the input shaft and the gear unit of the output shaft and blocking or transmitting power by linearly moving; a push ring for pushing the sleeve and having a cam pin protruding from the outer circumference; a rotor into which the push ring is inserted and which has a cam hole connected to the cam pin and a gear unit on the outer circumference at one end; a worm gear connected to the gear unit of the rotor; the motor for rotating the worm gear; a first bearing installed between the rotor and the input shaft; a housing for fixing the first bearing; a second bearing installed in the output shaft; and the spring installed between the sleeve and the second bearing. |
