SU802830A1 - Method of determining unbalanace value of cabin-lift counterweight system - Google Patents

Description

jOU At first, the forces are applied and replaced by the counterweight with an empty cabin. The forces Pj are created by rotating the lanyard coupling 5 and fixed with a dynamometer 6. The elevator counterweight is always heavier than the empty cabin, therefore when measuring the force R, the tooth of the worm gear 10 rests on the tooth of the worm 11. When the lanyard is rotating, the force from the cable driving pulley through the low-speed gearbox is transmitted to the worm wheel 10 clockwise. At the start of rotation of the turnbuckle, the force increases until the moment when the tooth of the worm wheel is torn off the tooth of the screw. After the occurrence of a kinematic discontinuity in the transmission, the point a on the tooth of the worm gear will change to the position Oi, the angle f has passed. At the same time, the force on the dynamometer will be constant and can be easily fixed. After the worm gear rotates by an angle, the reading of the dynamometer increases sharply, which indicates a complete choice of the gap in the engagement. Similarly, force is applied and measured from the side of the cabin, which is preloaded with a nominal load. Denoting the cab mass K, the nominal mass Q, the value of losses in the shaft F and having received the nominal weight of the counterweight K + 0.5, we get PI 0.5Q A + F; p, 0.5Q + A + F; where D is the value of imbalance in the sietema. From here, A -. F. The proposed method for determining the imbalance of the cabi figure system. 1 80

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Claims (1)

g Fig .2. 0 Ul on-counterweight with the help of the force applied to the winch driving pulley greatly increases the accuracy of determining this value, since it does not depend on the gear loss in the gearbox and in the drill. There is a direct relationship between the above efforts, measured by the proposed method, the amount of unbalance in the system and the amount of losses in the mine, which greatly simplifies the balancing of the systems, eliminating the laborious sample method, and makes it possible to determine the amount of losses in the drill. Claims The method of determining the imbalance of the cab-lift counterweight system is that the cab and the counterweight are set at half the lift height, force is applied to move upward from the counterweight side and from the cabin side, and then fix these forces, characterized in that in order to increase accuracy and reduce labor intensity, efforts are made on the side of the counterweight with an empty cabin, and on the side of the cabin — when loaded with a nominal load; a rupture in the worm gear of an elevator drive reducer, after which the amount of unbalance in the system is determined as the half-difference of these efforts. Sources of information taken into account in the examination of 1- Korneev G. K. and others. Passenger and cargo elevators. M., 1958. JO .3 a. a. FIG.