The wall bracket of the construction electric elevator should be intact and reliably fixed， and its attachment distance， wall bracket spacing， and end height must comply with the requirements of the "User Manual". The angle between the plane of the wall bracket and the normal direction of the attachment surface should not exceed degrees;. When the attachment device does not meet the requirements of the "User Manual" due to conditions， its calculation sheet， design， and production materials should be confirmed by the manufacturer or reviewed by the technical leader of the installation unit， and verified by experts.
Setting requirements: For construction electric elevators that operate in multiple shifts，not badElectric elevator small，not badFolding electric elevator， the handover system should be implemented， and drivers should fill out the handover record form according to the standard requirements. The driver should conduct a pre shift inspection and confirm that there are no errors before starting the machine for operation.
not badThe suspension cage movement can only be resumed after operator operation.
Horizontal lead screw mechanical electricity
CoaseWhen 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.
Operating cost advantage and low failure rate: Due to the use of advanced hydraulic systems and good methods， the operating failure rate can be reduced to a low level.
The full height landing door should meet the following requirements: the net height of the landing door opening should not be less than m. In special circumstances， when the net height of the building entrance is less than m， it is allowed to lower the height of the lower door opening， but in any case， the net height of the lower door opening is not less than m. (Article of GB-)
Work is essential， and the main protective accessories include safety belts， guardrails， platforms and stairs， etc.
The stopper bearing of the mechanism is kept intact.
From the above comparison， it can be seen that hydraulic electric lifting mechanisms have stable lifting， low noise， long service life， large load bearing capacity， and are relatively simple， making them suitable for use in stage equipment.
detailsDuring normal operation， the horizontal distance between the closed cage door and the closed landing door should not exceed mm. Otherwise， measures should be taken to make it meet the requirements， or side protection devices at the entrance of the landing station that meet the requirements should be equipped. The distance between any opening between the side protection device and the hanging cage or landing door should not exceed mm.
Steel wire ropes， pulleys， wear， deformation， and corrosion of steel wire ropes
The safety distance between the outer edge of the upper part of the landing door and the moving parts of the electric elevator during normal operation should not be less than .m; If the rated speed is not greater than .m/s， the safety distance can be .m.
The hydraulic oil enters the upper end of the hydraulic cylinder through the explosion-proof electromagnetic directional valve， and the return oil from the lower end of the hydraulic cylinder returns to the oil tank through the balance valve， hydraulic control one-way valve， throttle valve， and explosion-proof electromagnetic directional valve. To ensure a smooth descent of heavy objects and safe and reliable braking a balance valve is installed on the return oil circuit to balance the circuit and maintain pressure， intermediate shafts and bearings so that the descent speed does not change due to heavy objects. The throttle valve regulates the flow rate and the ascending and descending speed.
recommendMonthly maintenance and inspection of hydraulic lifting platform rollers， 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， 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，not badNew electric elevator， and then return it to the oil tank and connect the pipeline.
Construction electric elevators should be equipped with travel limit switches， as follows: automatic reset type upper and lower limit switches should be installed on construction electric elevators， but the upper and lower limit switches should not be triggered as high
Small 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.
not badImplementing multiple shifts of homework should fill in and submit records according to regulations.
According to the needs of different performance genres， the form of the stage can be changed. For example， using a lift can make the theater have various forms such as an end stage， an extended stage， an island stage， an intermediate stage， a T-shaped stage， or a hall.
Horizontal lead screw mechanical electricity
