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The construction elevator relies on what to carry heavy, static hour force point where
- Driven by two or three worm gear reducers, the ladder cage is a load bearing unit, and gravity is carried by a rack. At rest, the force point is in the meshing of the gear and rack.s
Is there a specification requirement for the floor door of the elevator to the floor? How high
- Layer should be made from steel door frame, Shanghai silk screen, and is equipped with solid and reliable locking device, elevator door layer, the process should be hanging cage crew operations, shall not be under the direct control of elevator lift cage's movement. The net height should not be lower than 1.80 m, and the width of the door should not be greater than 120mm.s
The calculation of the use of electricity in the construction elevator
- The full load is 7.5 KW. The output current is 4.2 A, is the converter 7.5 KW?s
Why is the construction elevator not up to the roof
- The free end of the construction of the lift height is only 7.5 meters high, general construction elevator drive now is the case, so the hoisting cage height and drive around 4.5 meters high, the other national standard construction elevator ceiling limit moves, drive above about 1.8 meters away from the top of the rails. So it's the free end of the construction elevator that can't satisfy the roof.s
What is the meaning of double straps in the construction elevator?
- Used for heavy to offset the hoisting cage weight so as to realize energy-saving province electric hoist, by making use of the fixed pulley for heavy gravity into upward traction hanging basket of traction, so as to reduce the drive motor load, achieve energy saving.s
6 layer of brick and concrete construction project, have tower crane still need construction elevator?
- 6 floors of brick and concrete construction projects, tower cranes do not need construction elevator. Brick structure refers to the building of the wall of vertical bearing structure, column, etc. By using brick or block masonry, lateral load-bearing beam, reinforced concrete structure is adopted for floor, roof boarding, etc. In other words, the masonry structure is a small amount of reinforced concrete and most brick wall bearing structures. The masonry structure is a kind of hybrid structure, which is composed of brick wall and reinforced concrete beams. Suitable for small width and depth, room area is small, multilayer or low-rise buildings, for load bearing walls can't change, while the frame structure of wall body can be altered.s
What is the main function of the construction elevator safety guard
- When the cage is unexpectedly overspeed, the cage will be stationary on the rail frame and cut off the power supply to ensure the safety of personnel and equipment.s
Does the new approach builder need a localizer test report
- Need, not for safety device testing qualified report, inspection agency will not issue the inspection report, in the construction of elevator installation supervision and inspection report, there is a specifically for, for safety device must have testing qualified report, to be certified.s
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