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Elaborate on the walking mechanism and lifting mechanism of electric hoists

releaseTime:2024-07-02 08:46:10source:Mu TiannumberOfPageViews:0

The walking mechanism and lifting mechanism of the electric hoist are its core functional components, responsible for horizontal movement and vertical lifting of heavy objects, respectively. The following is a detailed explanation of these two mechanisms:

Walking Mechanism

1. Travel Motor

Function: Provides power for the horizontal movement of electric hoists. The walking electric motor is usually part of an electric sports car, ensuring that the electric hoist can move left and right along the track or ground.

Features: Depending on the design, the walking motor can be driven through gear transmission or directly drive the wheels to achieve walking. The gear transmission method increases torque and reduces speed, making walking smoother; The direct drive method is more compact and efficient.

2. Transmission Mechanism

Composition: mainly including electrical devices and connecting devices. The electrical device controls the normal operation of the electric hoist, ensuring the accurate start, stop, and speed adjustment of the walking motor. The connecting device is responsible for connecting the driving wheel and the passive wheel (or the wheel to the track), transmitting walking power.

Features: Electrical devices typically include controllers, switches, protective devices, and other components to achieve precise control of the walking motor. The connecting device needs to have sufficient strength and stability to withstand various forces and vibrations during walking.

3. Walking speed

Value: The walking speed may vary depending on the model and load capacity of the electric hoist. For example, the walking speed of some electric hoists can reach 20m/min or higher.

Influencing factors: The walking speed is influenced by various factors such as motor power, transmission ratio, load weight, and track conditions.

Lifting Mechanism

1. Lifting Motor

Function: Provides power for the vertical lifting of electric hoists. The lifting motor drives the winding mechanism to wind or release the steel wire rope, thereby achieving the lifting of heavy objects.

Features: The lifting motor usually adopts a conical rotor three-phase asynchronous braking motor, which has good heat dissipation, long service life, and safety. The insulation level and protection level should be selected according to the working environment.

2. Winch Mechanism

Composition: mainly includes components such as drum, steel wire rope, guide wheel, etc. Fix the steel wire rope on the drum and orderly roll and release it; As a load-bearing and transmission component, steel wire rope transmits the power of the lifting motor to the suspended object; The guide wheel is used to guide the direction of movement of the steel wire rope.

Features: The design of the hoisting mechanism needs to consider the diameter, length, and arrangement of the steel wire rope to ensure stability and safety during the lifting process. At the same time, it is necessary to consider the strength and stiffness of the drum to withstand the stress and torque generated during the winding and release process.

3. Reducer

Function: Reduce the speed of the lifting motor and increase the torque, so that the winding mechanism can smoothly and controllably lift heavy objects.

Features: The reducer achieves speed regulation and power transmission through gear transmission. The reduction ratio and transmission efficiency need to be selected based on the power and load weight of the motor being increased.

4. Braking System

Function: Provide necessary braking force during the lifting process to ensure that the equipment can quickly and smoothly fix the position of heavy objects when stopped.

Features: The braking system usually uses components such as electromagnetic brakes or hydraulic brakes. Electromagnetic brakes have the characteristics of fast response speed, strong braking force, and high reliability; Hydraulic brakes are suitable for situations that require a large braking torque. In high-speed and frequently operated chain electric hoists, dual braking may also be used to improve safety.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoistwire rope electric hoistHand chain hoist, lever hoist, pneumatic hoist and other lifting equipment    

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