What is the Role of the Drive System in a Mineral Sizer
Introduction
The composition structure of Mineral sizer includes a motor, a coupling, a reducer, a coupling, a front bearing assembly, a crushing roller component, a rear bearing assembly, and synchronous gears. The drive structure and control system of Mineral sizer, based on the PLC automatic variable frequency speed regulation control system, the dual-motor + synchronous gear drive equipment strictly controls the meshing space of the crushing teeth, improves the crushing efficiency and effect of mineral sizer, stabilizes the working current, and achieves the effect of reducing energy consumption.
The principle of Mineral sizer
Mineral sizer is an efficient crushing device with a complex and precise structure, mainly composed of multiple key components. These components include a sturdy integral base, a frame that supports the entire device, key gear rollers responsible for crushing materials, a reducer for reducing speed and increasing torque, a hydraulic coupling for smooth power transmission, couplings connecting various transmission components, a lubrication system ensuring the smooth operation of the mineral sizer, and an electrical system providing power, etc.
Working principle
The motor is used to provide working power, and the output end of the motor is connected to the input shaft of the coupling. The coupling is used for overload protection. The coupling is connected to the reducer, and the reducer is connected to the crushing roller component through a coupling. The front bearing assembly and the rear bearing assembly are respectively installed at both ends of the crushing roller component. The synchronous pulley is installed at the tail of the mineral sizer, that is, after the rear bearing assembly.
The synchronous gear connects two separate transmission systems together, forcing the two crushing rollers to operate synchronously. The motor drives the reducer to start smoothly through the coupling. The reducer transmits the torque to the crushing roller component through the coupling, and the crushing roller component rotates according to the preset working mode. Synchronous gears are used to force the two crushing roller components to run synchronously.
Crushing principle
When the mineral sizer starts up and enters the working state, the two toothed rollers will rotate at high speed driven by electricity. At this point, the material to be crushed falls from above the mineral sizer into the crushing position between the two toothed rollers. Small pieces of material leak out from the gap between the two toothed rollers, while large pieces of material will be subjected to multiple crushing effects from the two toothed rollers, including shearing, squeezing and stretching, etc.
These crushing actions work in coordination to effectively break down large pieces of material into small pieces that meet the requirements of the finished product. Ultimately, the material that meets the size requirements of the finished product will be discharged through the gap between the toothed rollers, completing the entire crushing process.
Mineral sizer motor drive classification
Mineral sizer can be classified into two forms based on the number of motors: single-motor drive and dual-motor drive.
Single motor drive
The power is provided by a single motor, which is protected against overload through a hydraulic coupling. The speed is reduced by a reducer and the torque and load are transmitted, driving the active crushing roller to rotate. Under the action of the synchronous gear, it drives the driven crushing roller to rotate. The above can be simply referred to as the single drive + synchronous gear structure.
Because the transmission mode only provides kinetic energy with a single motor, and the power of a single motor is less than that of a double motor, it is prone to jamming. If the aim is to increase power, the selection of equipment models for motors, couplings and reducers will be too large, resulting in energy waste of the equipment. Moreover, the size of individual motors, couplings and reducers is relatively large, which affects the overall layout and installation of the equipment.
Dual-motor drive
Two motors independently drive two crushing toothed rollers to rotate and mesh for material crushing. The power and transmission components of the two toothed rollers are respectively controlled and operate independently. In actual working conditions, due to the large torque and the unstable loading of materials by the crushing teeth, the biting materials may experience phenomena such as “retraction” and “slip”, resulting in blockage of the crushed materials, over-limit output particle size and an increase in fine particles, leading to poor crushing efficiency and effect. Therefore, synchronous gears need to be installed to force the two crushing roller components to operate synchronously.
Performance characteristics
Overload protection
Through the connection effect of the hydraulic coupling, the motor and the reducer are closely connected, forming an effective protection mechanism. When the mineral sizer encounters an overload situation during operation, the hydraulic coupling can intervene in time to prevent the overload from causing damage to the motor, thereby ensuring the safety and stability of the motor and making the entire system operation more reliable.
Independent drive
The two toothed rollers of Mineral sizer are respectively driven by two independent motors, enabling each toothed roller to operate independently. This design brings extremely high flexibility, enhancing the adaptability and operational convenience of the mineral sizer. In practical applications, this independently driven design enables mineral sizer to better adapt to various complex working environments.
High utilization rate
The crushing teeth adopt a unique tiger tooth style design and are surfacing with hard alloy material on the surface, significantly enhancing the strength and wear resistance of the tooth part. This design not only can effectively crush high-hardness materials, but also can be directly repaired after the teeth wear, which extends the service life of the mineral sizer and significantly improves its comprehensive utilization rate.
Wide range of applications
Mineral sizer is not only suitable for crushing ores of different hardness levels such as high, medium and low, but also widely used in the crushing treatment of various materials including coal gangue and coke. Its wide range of applications enables mineral sizer to play a significant role in various industrial fields and meet the diverse needs of different users.
Summary
The drive system of Mineral sizer mainly serves to provide power and control the synchronous operation of the crushing rollers. The drive system outputs power through the motor, which is then transmitted to the crushing roller via components such as the coupling, reducer, and coupling, enabling it to rotate in accordance with the set working mode.
Meanwhile, the installation of synchronous gears ensures that the two crushing rollers can operate synchronously, thereby guaranteeing the stability and efficiency of the crushing process. In the crushing operation, the drive system not only provides the necessary power support but also enables the synchronous operation of the crushing rollers through precise control, which is the key to the efficient and stable operation of Mineral sizer.
