The maximum acceleration of vertical shaft hoisting shall not exceed ()

The maximum acceleration of shaft hoisting shall not exceed the values of design requirements and use restrictions.

Refers to the maximum acceleration allowed by the lifting system during lifting. This value is usually determined according to the design requirements and use restrictions of the hoisting system to ensure the safety and stability of the hoisting process.

In mine hoisting, vertical shaft hoisting is a common hoisting method. Vertical shaft hoisting usually adopts cage, skip and other lifting containers to carry miners, equipment and materials. In the process of vertical shaft hoisting, it is very important to limit the maximum acceleration, because excessive acceleration may lead to the increase of friction between the hoisting container and the shaft wall, thus generating excessive friction torque, causing the hoisting system and the shaft wall to bear excessive load and affecting the safety of the hoisting process.

According to different mine design and hoisting requirements, the maximum acceleration of vertical shaft hoisting may be different. Generally speaking, the maximum acceleration of vertical shaft hoisting is usually in. In some cases, the maximum acceleration may be higher in order to meet specific lifting requirements. But in any case, the maximum acceleration value must be accurately calculated and adjusted according to the actual situation to ensure the safety and stability of the lifting process.

In order to ensure the safety of vertical shaft hoisting, besides limiting the maximum acceleration, other factors such as the design of hoisting container, the strength of hoisting wire rope and hoisting speed need to be considered. These factors need to be accurately calculated and adjusted according to the actual situation to ensure the safety and stability of the vertical shaft hoisting process.

How to calculate the maximum acceleration:

Determine the resultant force on the object. The resultant force is equal to the vector sum of all forces on an object.

Calculate the acceleration of an object with Newton's second law. The formula is: F=ma, where f stands for external force, m stands for object mass and a stands for acceleration.

Gradually change the size of the resultant force until the object can bear the maximum resultant force. The acceleration obtained at this time is the maximum acceleration.

In the concrete calculation, we need to consider the mass, friction, air resistance and other factors of the object. These factors will affect the magnitude and direction of the external force on the object, thus affecting the calculation result of the maximum acceleration.

For example, in the automobile field, the maximum acceleration can be calculated by the following formula, where f represents the engine output power, f represents the friction force, and m represents the automobile mass.

In the aviation field, the maximum acceleration can be calculated by the following formula, where V 1 represents the takeoff speed of the aircraft, V2 represents the speed when the aircraft accelerates to the maximum speed in a short time, and G represents the acceleration of gravity.