Measuring device for braking deceleration of traction drive elevator

The utility model discloses a device for measuring braking deceleration of a traction driving elevator, which comprises a reduction gearbox, the reduction gearbox is fixed on a driving host base, a traction wheel is connected with a rotating shaft of the reduction gearbox, a traction steel wire rope is wound on the traction wheel, and the surface of the traction steel wire rope is tangent to and attached to the circumferential edge of a tachometer roller. The tachometer roller is arranged on the tachometer, the tachometer is fixed on the base fixing device, the tachometer is connected with the data analyzer through the data cable, and the base fixing device is arranged on the driving host base. According to the utility model, the braking distance of the elevator under the ascending braking working condition can be accurately measured, and the measurement error caused by manual operation is avoided; the deceleration value at the braking moment of the elevator car can be automatically obtained; the device is si