Abstract: The present invention relates to a wire rope suspension device, control method and multi-rope friction lift system, the device comprising: a first beam (6) and a second beam (9) which are passed by a wire rope (1) and fixed to the wire rope (1); a suspension joint (15), for connecting a lifting container (30); a suspension cylinder (14), having two ends respectively connected to the second beam (9) and the suspension joint (15); a wedge joint (8), being disposed in an accommodating chamber provided inside the second beam (9); and a wire rope bias limiting mechanism, being disposed between the wedge joint (8) and the second beam (9), for driving the wedge joint (8) to lock a wire rope section on one side of the wedge joint (8) itself and releasing movement restriction of a wire rope section on the other side of the wedge joint (8), when the second beam (9) has a displacement with respect to the first beam (6) in a predetermined direction. The present invention allows a convenient rope adjustment operation.

Abstract: The present invention relates to a wire rope suspension device, control method and multi-rope friction lift system, the device comprising: a first beam (6) and a second beam (9) which are passed by a wire rope (1) and fixed to the wire rope (1); a suspension joint (15), for connecting a lifting container (30); a suspension cylinder (14), having two ends respectively connected to the second beam (9) and the suspension joint (15); a wedge joint (8), being disposed in an accommodating chamber provided inside the second beam (9); and a wire rope bias limiting mechanism, being disposed between the wedge joint (8) and the second beam (9), for driving the wedge joint (8) to lock a wire rope section on one side of the wedge joint (8) itself and releasing movement restriction of a wire rope section on the other side of the wedge joint (8), when the second beam (9) has a displacement with respect to the first beam (6) in a predetermined direction. The present invention allows a convenient rope adjustment operation.

Abstract: A method and device for detecting the temperature of a motor winding, a method and device for thermal protection of a motor are provided, the method for detecting the temperature of a motor winding includes: obtaining the temperature of the motor winding at a first time before a time step; calculating the temperature rise of the rotor equivalent body after the motor runs for the time step; then calculating the temperature of the motor winding after the motor runs for the time step by superposing the temperature rise of the rotor equivalent body after the motor runs for the time step on the temperature of the motor winding obtained at the first time. By the method for detecting the temperature of a motor winding, the real-time monitoring on the temperature of the winding is achieved, thus applying the ability of the motor and improving sensitivity.

Abstract: A method and device for detecting the temperature of a motor winding, a method and device for thermal protection of a motor are provided, the method for detecting the temperature of a motor winding includes: obtaining the temperature of the motor winding at a first time before a time step (S10); calculating the temperature rise of the rotor equivalent body after the motor runs for the time step (S20); then calculating the temperature of the motor winding after the motor runs for the time step by superposing the temperature rise of the rotor equivalent body after the motor runs for the time step on the temperature of the motor winding obtained at the first time (S30). By the method for detecting the temperature of a motor winding, the real-time monitoring on the temperature of the winding is achieved, thus playing the ability of the motor and improving sensitivity.