Elevator no-load balance coefficient detection apparatus with automatic return function

The invention provides an elevator no-load balance coefficient detection apparatus with an automatic return function. The elevator no-load balance coefficient detection apparatus comprises an upper clamp, hydraulic cylinders, a lower clamp, and sensors connected with the hydraulic cylinders and used for measuring the pulling force, the upper clamp is arranged above the hydraulic cylinders, the lower clamp is arranged below the hydraulic cylinders, the hydraulic cylinders are used for realizing the lifting of the lower clamp, the elevator no-load balance coefficient detection apparatus also comprises return mechanisms, the hydraulic cylinders are single-acting hydraulic cylinders, and the return mechanisms are arranged on the hydraulic cylinders and used for driving the hydraulic cylinders to return and driving hydraulic rods to stretch out. According to the elevator no-load balance coefficient detection apparatus, the automatic return function of the hydraulic cylinders is designed, the hydraulic cylinders can return to the initial positions after each test of the detection apparatus, and steps of initial adjustment can be reduced.