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.
Setting requirements: When the distance between the outer edge of the construction electric elevator and the external overhead power line cannot meet the requirements of a small safety distance， the protective measures taken should comply with the specification requirements.
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High lifting height， using side mounted oil cylinders， stable operation， noise free， easy maintenance， design calculations should be carried out.
Once again， weekly inspections should be conducted to check whether the connecting screws at various parts of the lifting platform are tightened， whether the sealing rings are damaged or ineffective， whether there is a lack of hydraulic oil， and whether the oil cylinder is leaking. It is necessary to clean the lifting frame， scissors， wiring， and oil cylinder once a week to avoid dust and debris affecting normal operation.
Flat screw mechanical electric lifting mechanism: The lifting platform of this structure has the advantages of small civil engineering coordination， shallow foundation pit required large stroke， stable operation， low noise， accurate positioning， and low cost. Adopting a horizontal screw drive and a scissor fork structure to achieve the lifting motion of the table， it can be stopped arbitrarily within the range of travel.
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 ohms; The power supply of the electric elevator can be cut off.
There is a certain itinerary.
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，ZandanThree Rivers， but in any case， the net height of the lower door opening is not less than m. (Article of GB-)
new productThe scaffolding of the parking platform should be laid tightly and firmly.
Setting requirements: The quality of the standard section should meet the requirements of the product manual. Before installing the construction electric elevator， all components should be inspected， and standard sections and other components with severe wear and deformation should be replaced.
Every theater is a public place with a large number of people， and safety considerations should be taken into account in stage design. According to relevant national regulations， in order to prevent accidents caused by the crushing of electric elevators or improper control by drivers. Electric elevators should be equipped with the following necessary safety devices to ensure that the car of the electric elevator stops rising or falling in a timely manner.
The hydraulic oil enters the upper end of the hydraulic cylinder through the explosion-proof electromagnetic directional 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， 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.
Development CurriculumThe end height of the guide rail frame above the high attachment point should comply with the provisions of the user manual.
Precautions during operation: Mechanical operations should be gentle and smooth， and mechanical operations should be avoided， otherwise impact loads will inevitably occur， causing frequent mechanical failures and greatly shortening the service life. Generated during homework
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，ZandanLeche， it will take on the function of raising or lowering. In order to prevent the lift car from crashing or sinking 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， the safety distance can be .m.