1. Each guide rail should have at least two guide rail brackets with a spacing of 2.5m Under special circumstances, measures should be taken to ensure that the guide rail installation meets the bending strength requirements specified in GB7588-2003. The levelness of the guide bracket shall not be greater than 1.5%, and the buried depth of the anchor bolt or bracket of the guide bracket shall not be less than120 mm. When the bracket is welded, the weld seam must be continuous and both sides shall be welded firmly.
2, the elevator roof, guide shoes should not be deviant.
3. Every 5M, the deviation between the working face of each guide rail and the installation reference line should not be greater than the following values: the counterweight guide rail with safety tongs in the car is 0.6mm, and the T-shaped counterweight guide rail without safety tongs is1.0mm. ..
4. The guide rail shall be fixed on the guide rail frame through the pressure plate, and welding or direct connection shall not be adopted.
5. Distance deviation between the top surfaces of two rows of guide rails: car+2-0; The counterweight guide rail is +3-0.
6. When there is an installation baseline, each column of guide rails shall be tested in the whole column relative to the baseline, and the maximum deviation value shall be taken.
Adjusting guide rail
① Dismantle the installation line of the guide rail bracket, place the center line of the car guide rail at the position of the center line of the car guide rail determined on the template and fix it.
② Check the distance between the end face of apricot guide rail and the center line of car guide rail with a steel blind ruler, and adjust the distance between guide rail bracket and guide rail by adding or subtracting gaskets, so that the distance between the end face of guide rail at each measuring point and the center line of car guide rail is consistent.
Extended data
Elevator guide rail is an important part of the elevator system, which provides guidance for the car and counterweight device when the elevator is running, and also plays a supporting role in safe clamping.
The following analyzes the importance of guide rail from two aspects: safety and comfort of elevator.
1) security. The main factor affecting the safety of elevator guide rail is the material of guide rail. The guide rail material is too hard or uneven (partially too hard), so that the clamp can not get enough friction when braking, which leads to braking failure and car falling, which is the most serious working condition in elevator accidents. The guide rail should also have sufficient strength to ensure the support and impact of the car when it is safely clamped.
2) Comfort. There are several factors that affect elevator comfort through elevator guide rails:
A. Connection accuracy of guide rail: The connection accuracy of solid guide rail is guaranteed by the end size of guide rail and the symmetry of concave-convex tenon, while the connection accuracy of hollow guide rail and escalator guide rail is guaranteed by the end size and shape and position tolerance of guide rail, which directly affects the stability and comfort of elevator operation.
B roughness of the guide surface of the guide rail: the roughness of the guide surface of the guide rail directly affects whether the guide shoes can run smoothly on the guide surface, and also affects the storage of lubricating oil, thus affecting the running quality of the automobile.
C straightness and twist of the guide rail: bending and twisting at any point on the guide rail will give the car a lateral force, which will affect the up-and-down linear motion of the car and make the car feel shaking. With the increase of elevator speed, the car will feel vibration, which will affect the comfort.
Baidu encyclopedia-elevator guide rail
Baidu encyclopedia-guide rail