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Understanding And Installation Of Elevator Guide Shoes

9/27/2020 10:06:31 PM

1. What role does the elevator guide shoe play? 


There are a total of 4 elevator guide shoes, two on the top and two on the top, which are stuck on the track to fix the car. There is a shoe lining (nylon material) inside the guide shoe, which is in contact with the three sides of the guide rail, and there is an oil box outside to lubricate the guide rail.  


The guide shoe is the guiding function. It is stuck on the guide rail (there is a gap, but there is little), and the elevator will not shake when it runs up and down. The guide shoe is composed of a guide shoe head, a guide shoe body, and a guide shoe seat.




2. What is the classification of guide shoes?


The car guide shoes are installed under the upper beam of the car and the safety gear seat at the bottom of the car, and the counterweight guide shoes are installed on the upper and bottom of the counterweight frame, generally four in each group. 


The main types of guide shoes are sliding guide shoes and rolling guide shoes.  


a. Sliding guide shoes-mainly used in elevators below 2m/s 


There are fixed sliding guide shoes and elastic sliding guide shoes.



b. Rolling guide shoes-mainly used in high-speed elevators, but also can be used in medium-speed elevators. 


My personal opinion:  


The function of the guide shoe in the entire elevator is equivalent to the shock absorber spring in the car. Like a spring, as long as it can achieve the shock absorption effect, it is a qualified product. Throughout the world, products only have the origin and quality of workmanship. There is no obvious distinction between high and low brands. According to my analysis, the best quality and price balance of this product should come from domestic factories.


If you need further confirmation, you need to measure the hole distance and the thickness of the guide rail and take a photo to confirm.


The guide shoe is a slidable nylon block between the elevator guide rail and the car. It is called guide shoe. It can fix the car on the guide rail so that the car can only move up and down. There is an oil cup on the guide shoe to reduce the shoe lining. Friction with the guide rail. Each elevator car is equipped with four sets of guide shoes, respectively installed on both sides of the upper beam and under the safety gear seat at the bottom of the car; four sets of counterweight guide shoes are installed on the bottom and upper part of the counterweight beam.


The guide shoe fixed on the car can reciprocate up and down along the fixed guide rail installed on the wall of the building hoistway to prevent the car from deflection or swinging during operation.


Installation of guide shoes


The installation method of the guide shoe is to put it on the installation position of the car frame guide rail. After finding the correct position, fix it on the car guide rail frame with bolts. The installation of guide shoes must meet the following requirements:


1. After the upper and lower guide shoes are installed in place, they should be on the same vertical line. No skew or deflection is allowed. Ensure that the upper and lower guide shoes are in line with the center of the safety jaw.


2. Fixed guide shoes are mainly used for freight elevators. The clearance on both sides should be the same, and the clearance between the inner lining and the top surface of the track should be 0.5-2mm