A drive structure of an elevator

Abstract

The invention discloses a novel driving structure of an elevator. The novel driving structure comprises a driving motor, a dragging wheel connected with the driving motor, a lift car and a counter weight box. The driving motor and the dragging wheel are arranged in the counter weight box, and a steel cable led out from the top of the lift car upwards passes through two steering wheels sequentially to be connected with the top of the counter weight box. A transmission strip passes through the dragging wheel in the counter weight box, the upper end of the transmission strip is fixed on the top of an elevator shaft, the lower end of the transmission strip is fixed at the bottom of the elevator shaft, and the dragging wheel drives the counter weight box to move vertically along the transmission strip. The novel driving structure solves the installing problem of the driving motor and the dragging wheel and saves installing space. Simultaneously the driving motor and the dragging wheel serve as weights in the counter weight box, weights required to be configured are effectively reduced, and the cost is reduced.

Description

technical field [0001] The invention relates to a driving device, in particular to a driving structure of an elevator. Background technique [0002] refer to figure 1 , the figure shows the driving connection structure usually used by traditional elevators. A fixed pulley 1 is arranged on the top of the elevator shaft. The movable pulley 2 on both sides below the pulley 1 is hung with a car 3 and a counterweight box 4 respectively, and a weight 5 is arranged in the counterweight box 4 . In the above connection structure, the fixed pulley 1 is a traction pulley, and a driving motor is arranged beside the fixed pulley 1, and the driving motor drives the fixed pulley 1 to rotate, thereby driving the car 3 to rise or fall, and the movement status of the counterweight box 4 is the same as that of the car 3. on the contrary. [0003] The driving connection structure adopted by traditional elevators has the following disadvantages: one is the installation problem of the fixed pu...

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Problems solved by technology

[0003] The driving connection structure adopted by traditional elevators has the following disadvantages: one is the installation problem of the fixed pulley 1 and the driving motor. The fixed pulley 1 and the driving motor must be arranged on the top of the elevator shaft, usually at the top of the floor. 1 and the drive motor, if there is no elevator room on the floor, it is necessary to reserve a space inside the elevator shaft to install the fixed pulley 1 and the drive motor. Since the diameter of the fixed pulley 1 is more than 40 times the diameter of the steel cable according to national regulations, generally It is set between 45 and 55 times the diameter of the wire rope, resulting in a large volume of the fixed pulley 1, which takes up a lot of space on the top of the elevator, and has the disadvantages of a large amount of wire rope and a short service life caused by reverse bending of the wire rope; the second is the counterweight box 4 The weight 5 inside needs to be set with a larger quality, and the cost is higher

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