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The advantages and disadvantages of several commonly used electric lifting mechanisms are as follows: hydraulic electric lifting mechanisms: using hydraulic technology, smooth lifting and low noise.Emergency manual valve: In case of power failure,Lower limit switch: In normal working state, before the suspension cage touches the buffer, the lower limit switch first acts.Low power consumption: When the hydraulic guide rail lifting platform descends, it is driven by the pressure generated by its own weight, greatly saving energy and reducing consumption.Greenland,Double layer steel mesh: The diameter of the steel bars is mm, with a spacing of mm.When the horizontal distance between the edge of the cage and the edge of the landing or between the cage and the landing door is greater than mm and there is no effective protection from other structures, the side protection device for the landing entrance should be equipped.Manual pump: When the system malfunctions, the manual pump can be operated to pump high-pressure oil to raise the car to the nearest floor position

Later, when there is a major malfunction of the lifting platform, it should not be used again to avoid accidents, personnel and property losses.m； When the lifting speed is greater than .m/s, after the upper limit switch is triggered by the hanging cage, the upper small safety distance L should meet the following requirements: L=+.V, where L is the upper safety distance; V: Increase speedFrom the above comparison, it can be seen that hydraulic electric lifting mechanisms have stable lifting low noise, large load bearing capacity, and are relatively simple,OrlandoAnthony, making them suitable for use in stage equipment.index,Monthly maintenance and inspection of hydraulic lifting platform rollers,OrlandoNew South Memphis, intermediate shafts and bearings, oil cylinder pin shafts and bearings, boom hinge shafts and bearings for wear. Add some oil to each part to extend the service life of the lifting platform bearings. The quality and level of hydraulic oil. The lifting platform should be raised throughout the entire process, and at this position, the hydraulic ground should be - millimeters higher than the bottom of the box. If the hydraulic oil becomes dark, sticky, or has foreign objects such as gravel it should be replaced in a timely manner ( # hydraulic oil). Annual maintenance and inspection of all hydraulic pipelines and joints of the lifting platform. The pipeline must not be damaged, and the joints must not be loose. All joints must be tightened. Remove and disassemble the lowering valve of the lifting platform, blow out the plunger with compressed air, then install it and reinstall it. Drain and discard the hydraulic oil, tighten the joint, remove the oil filter, clean it with compressed air, and then return it to the oil tank and connect the pipeline.The bearing capacity of the ground under the concrete foundation plate should be greater than .Mpa.When the wall bracket cannot meet the requirements of the construction site, it should be designed and calculated separately.

Setting requirements: The verticality deviation of the installation of the guide rail frame of the construction electric elevator should comply with the requirements of the user manual and specifications, as specified in the above table.For more, please check,Model Example: Hanging Cage Specification: LABSC/TDx Type I: ~ Type II: ~ Type V: ~ Technical Requirements: The load-bearing capacity of the foundation should be greater than P: P=(hanging cage weight+outer cage weight+total weight of guide rail frame+counterweight+load) x. (kN).. The shutdown device (emergency stop switch) should be installed outside the ground protective fence; b) Pulley room (if any. Pulley room refers to a room where only pulleys or speed limiters and electrical equipment are installed; c) hanging cage top, ifSmall safe operation distance: Circuit voltage (kV) of external power lines<~~~ Small safe operation distance (m) Setting requirements: A small safe distance should be maintained between the outer edge of the construction electric elevator and the edge of the external overhead power line.Orlando,Civil engineering advantages: The pit depth of the guide rail type lifting platform is generally around -mm, and the top layer is not affected. It can be customized according to the location and environment.When the door is closed, except for the gap between the lower part of the door that should not exceed mm, any through-hole and opening size related to the distance between any door and adjacent moving parts, as well as the gap around the door or the gap between parts, should comply with the provisions of Table of GB -.Vertical lead screw electric lifting mechanism: Adopting a lead screw transmission method, it can achieve the lifting of a double-layer tabletop. Multiple lifting platforms can be formed as needed and different steps can be formed within the travel range to meet the needs of meetings and performances; Pavilion, Terrace, Tower, Pavilion; Ideal props.