A counterweight body with self-tensioning effect

Abstract

The invention relates to a balance weight body with a self-tensioning effect. The balance weight body comprises two parallel fixing plates, a rack and metal balance weights, wherein the fixing plates are fixedly connected through two horizontal fixing rods; the rack is arranged between the fixing plates; the balance weights are fixed on the fixing plates; the rack comprises two clamping plates; a first long slotted hole and a second slotted hole, which penetrate through the front parts and the rear parts of the clamping plates are formed in the clamping plates; the two fixing rods are arranged in the first long slotted hole and the second slotted hole respectively; the rack further comprises a first fixed pulley, a second fixed pulley, a movable pulley and a connecting wire rope; the first fixed pulley and the second fixed pulley are fixed between the two clamping plates; the two ends of the connecting wire rope are connected with the fixing rods respectively; the top of the rack is fixedly connected with an upper wire rope; the movable pulley is fixedly connected with a lower wire rope. Since the distance between the nodes of the upper wire rope and the lower wire rope of the balance weight body provided by the invention can be adjusted freely within a certain range, a hanging wire rope can be kept tight, a traction wheel is free from the phenomena of slipping and idle rotation during working, and the working stability of the whole traction mechanism is guaranteed.

Description

technical field [0001] The invention relates to the technical field of counterweights, in particular to a counterweight with self-tensioning effect. Background technique [0002] At present, lifting platforms are used in many places, such as elevators, lifting and loading equipment during high-rise building construction, and car lifting platforms for underground or above-ground three-dimensional garages. When lifting platforms are used, they are usually winches or tractors. The steel cable is connected to the car or the lifting platform, and the counterweight must be suspended on the steel cable. Usually the counterweight is a simple weight, which is connected up and down with the steel cable, so that it does not need to be tensioned when using the winch, but when the traction machine is set at the bottom of the system, the steel cable at the bottom of the counterweight is easy to appear The slack phenomenon causes the traction sheave to slip and cannot work normally. Con...

AI Technical Summary

Problems solved by technology

Usually the counterweight is a simple weight, which is connected up and down with the steel cable, so that it does not need to be tensioned when using the winch, but when the traction machine is set at the bottom of the system, the steel cable at the bottom of the counterweight is easy to appear Slack phenomenon, causing the traction sheave to slip and not work normally

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