southern subur
southern subur
southern suburThe 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.
When the landing door is closed the full width of the lifting passage opening should be covered.
southern suburbs.The inner bearing of the roller in the device is in good condition, and a complete grease film surface is maintained between the curved surface of the roller and the main chord of the aluminum alloy electric elevator. A good grease film surface can reduce wear and noise
Small safe operation distance: Circuit voltage (kV) of external power lines<11~1035~110220330~550 Small safe operation distance (m) 4681015 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.
.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 0.75m; If the rated speed is not greater than 0.7m/s, the safety distance can be 0.40m.
Horizontal lead screw mechanical electricity
Double layer steel mesh: The diameter of the steel bars is 12mm, with a spacing of 200mm.
Setting requirements: The foundation and foundation of the construction electric elevator should meet the requirements of the user manual. Before installing the construction electric elevator, the foundation should be inspected and accepted according to the requirements of the specifications. Only after passing the inspection can the installation be carried out.
8m； When the lifting speed is greater than 0.8m/s, after the upper limit switch is triggered by the hanging cage, the upper small safety distance L should meet the following requirements: L=8+0.1V2,southern suburbsElectric pulley elevator, where L is the upper safety distance; V: Increase speed
Setting requirements: The layout and installation of all cables and wiring of electric elevators should be able to prevent mechanical damage.
Promotion.Safety grounding device. In order to protect against electrical equipment. The metal casing of electrical equipment and the metal structure of electric elevators should be equipped with a safety grounding device. The grounding wire should operate multiple wires, and the neutral wire should not be arbitrarily held as a safety grounding wire. Its grounding resistance should not exceed 4 ohms; The power supply of the electric elevator can be cut off.
Implementing multiple shifts of homework should fill in and submit records according to regulations.
When the landing door is closed, the full width of the lifting passage opening should be covered.
The oil cylinder and sealing components are made of imported components to solve the problem of unstable oil pressure and oil leakage of components for customers.
Encyclopedic knowledge.Before installation, the installation unit should confirm that the foundation, foundation bearing capacity,southern suburbsZoomlion Electric Elevator, embedded parts, concealed engineering acceptance form, and concrete strength report.
How to determine the sufficient amount of clean oil for the hydraulic station of an electric elevator? Why cannot water be used to flush the hydraulic station of an electric elevator?
Use floor doors and cage door devices on construction sites where conditions permit.
southern suburbs.Setting requirements: For construction electric elevators that operate in multiple shifts, 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.
Braking. The brake limit switch for partial motion control of the electric hoist traction machine. Assembly that restricts the operation of the lift car when it is opened to a high or low position; If the limit switch controls the overtravel switch. When the car travels to a high or low position, it will take on the function of raising or lowering. In order to prevent the lift car from crashing or sinking,southern suburbsElectric elevator mechanism, stage equipment should be dismantled with over travel switches that can cut off power and cannot be automatically reset, and installed in the machine room, rather than in the shaft; A buffer should be installed that can absorb the energy of the moving mechanism and reduce impact.
Vertical lead screw electric lifting mechanism: Adopting a lead screw transmission method, Terrace and different steps can be formed within the travel range to meet the needs of meetings and performances; Pavilion, Tower, Pavilion; Ideal props.