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Analysis of Causes of Instability of Platform Lifting Platform

by:Powerston     2021-07-20
Analyze the reasons for the instability of the lifting platform in the platform. Anyone who knows the hydraulic lifting platform knows that when the lifting speed of the lifting platform is unstable and the countermeasures are used, the lifting platform can meet the basic functional requirements. The hydraulic lifting platform is driven by steel wire ropes and is mostly used to transport goods. It is composed of tower, hanging basket, hoist, etc. The tower is generally a truss structure, which is pulled by cables to keep it upright. The hanging basket is welded with section steel and is a container for loading goods. The hoist is fixed on the ground, the wire rope is connected to the gondola through the pulley on the top of the tower, and the gondola is pulled to run up and down, and the operator controls it on the ground. platform is a kind of lifting machinery that vertically transports people or objects. It also refers to the equipment for vertical transportation in logistics systems such as factories and automatic warehouses. The lifting platform is often equipped with a variety of flat transportation equipment as a connecting device for conveyor lines of different heights. It is generally driven by hydraulic pressure, so it is called hydraulic lifting platform. In addition to transporting goods at different heights, it is widely used in high-altitude installation and maintenance operations. From the point of view of on-site use, the lifting platform can meet the basic functional requirements. Common phenomena include slipping of the cigarette case, difficulty in detecting the median value in the rising position, impact noise when rising, and oil leakage in the hydraulic cylinder. The on-site inspection is mainly due to the excessively fast lifting speed of the hydraulic cylinder, which leads to an increase in the failure rate and seriously affects the production efficiency. Analysis of the reasons for the unstable lifting speed of the hydraulic cylinder There are many reasons for the unstable lifting speed of the hydraulic cylinder, including design, manufacturing and use. Aiming at the problems of the hydraulic system, the reason for the unstable lifting speed of the hydraulic cylinder of the lifting cage platform is analyzed by the speed stiffness theory: the composition of the lifting hydraulic circuit. Oil pump safety valve, reversing valve, one-way valve (without bypass), lifting cylinder.    established the speed stiffness analysis formula of the lifting ring. The flow into the hydraulic cylinder, that is, the flow through the one-way valve is the flow of the super valve, the shape of the valve and the hydraulic viscosity, etc. The flow area of u200bu200bthe AT inlet is the flow area of u200bu200bthe port (raising NO). The outlet pressure of the hydraulic pump; P1 is the pressure of the intake chamber of the hydraulic cylinder to increase the plug area of u200bu200bthe hydraulic cylinder; according to the index determined by the shape of the pump port, the speed formula of the speed control circuit is obtained. When the valve port area is constant, the output speed of the hydraulic cylinder changes with the load. The influence of load on speed is expressed by speed stiffness T: the output speed of the construction lift actuator hydraulic cylinder decreases as the load increases. In order to make the feed a positive number, a negative sign is added to the formula. The greater the speed rigidity of the air inlet speed control circuit, the better the speed stability of replacing the hydraulic circuit with a lifting platform.   When the load is constant, the smaller the intake port, the higher the system speed rigidity; conversely, the larger the opening area, the lower the intake port. platform is a kind of lifting machinery that vertically transports people or objects. It also refers to the equipment for vertical transportation in logistics systems such as factories and automatic warehouses. The lifting platform is often equipped with a variety of flat transportation equipment as a connecting device for conveyor lines of different heights. It is generally driven by hydraulic pressure, so it is called hydraulic lifting platform. In addition to transporting goods at different heights, it is widely used in high-altitude installation and maintenance operations.   When the load is constant, the speed stiffness at low speed is better, and when the load changes, the speed stiffness under a smaller load is better. By increasing the oil supply pressure and increasing the effective area of u200bu200bthe hydraulic cylinder, the speed stiffness of the hydraulic cylinder can be improved. In summary, many equipment failures are related to hydraulic pressure. The main reason for the failure of the lifting platform is the unreasonable design of the lifting speed control circuit of the hydraulic system. This is an issue worthy of concern for relevant companies.
In the past few decades, building material hoist production has increased because of the use of suspended working platform.
For details on suspended working platform, see Wuxi Powerston Technology Co.,Ltd at Powerston Construction Equipment.
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