Backpack type car frame system for elevator

Abstract

The invention discloses a backpack type car frame system for an elevator. The backpack type car frame system comprises a lift car and a car frame or supporting the lift car, wherein the car frame comprises two stand beams which are simultaneously arranged at one side of the lift car, and upper beams which are arranged between the two stand beams and are positioned above the lift car; the two stand beams are respectively positioned at the other two opposite sides of the lift car; the upper beams comprise a main upper beam and an auxiliary upper beam; the two ends of the main upper beam are respectively connected to the two stand beams; the auxiliary upper beam is vertically arranged in the middle of the main upper beam and faces towards the lift car; a rope wheel is arranged on the auxiliary upper beam; the shaft axis direction of the rope wheel is perpendicular to the symmetrical center lines of the two stand beams; a hoisting rope bypasses the rope wheel downwards; and the ratio of the movement speed of the hoisting rope to the movement speed of the lift car is 2: 1, namely, the rope winding ratio is 2: 1. The backpack type car frame system has the beneficial effects that due to arrangement of the rope wheel, the moment of force generated when the hoisting rope bypasses the rope wheel can basically counterbalance the unbalance loading moment of force generated when the car frame system presses guide shoes on guide rails in a horizontal direction, so that the acting force between the guide shoes and the guide rails in the horizontal direction can be reduced or eliminated, and the abrasion of the guide shoes is reduced; and the comfortable feeling of riding the elevator is improved by balancing the moment of force generated by the unbalanced loading of the elevator.

Description

technical field [0001] The invention relates to a knapsack type car frame system on an elevator. Background technique [0002] In elevator equipment, the existing knapsack-type car frame system includes a car and a car frame for supporting the car. The upper beam above the car, the lower beam arranged between two vertical beams and below the car, the two vertical beams are respectively located on the other opposite sides of the car, and a bracket is installed on the lower beam. The car is placed, the bracket is fixedly connected to the bottom plate of the car, and the upper beam is provided with a clamping part that is stuck on the top plate of the car. The clamping part is used to fix the position of the car. The upper and lower ends of the vertical beam There are guide shoes on the top, and the guide shoes cooperate with the guide rails to guide the car frame system to move up and down along the guide rails. The guide rails are fixed and installed in the elevator shaft th...

AI Technical Summary

Problems solved by technology

[0002] In elevator equipment, the existing knapsack-type car frame system includes a car and a car frame for supporting the car. The upper beam above the car, the lower beam arranged between two vertical beams and below the car, the two vertical beams are respectively located on the other opposite sides of the car, and a bracket is installed on the lower beam. The car is placed, the bracket is fixedly connected to the bottom plate of the car, and the upper beam is provided with a clamping part that is stuck on the top plate of the car. The clamping part is used to fix the position of the car. The upper and lower ends of the vertical beam There are guide shoes on the top, and the guide shoes cooperate with the guide rails to guide the car frame system to move up and down along the guide rails. The guide rails are fixed and installed in the elevator shaft through brackets. Passing the traction sheave, the other end is connected to the counterweight, relying on the friction between the traction rope and the rope groove on the traction sheave to drive the car up and down, the movement speed of the traction rope is the same as the lifting speed of the car, that is, the rope winding ratio 1:1, on the elevator with the backpack type car frame system, since the direction of the center line of the car frame system deviates from the force direction of the car frame system, when the car frame system goes up and down, there is a large force in the horizontal direction. The force presses the guide shoes on the guide rails, which is easy to wear the guide shoes, especially when the car is under severe partial load, the guide shoes are severely worn, and the guide shoes need to be replaced frequently, and the comfort of the elevator ride is poor

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