Screen Structure Vibration

The present work aims to perform a dynamic analysis of a vibrating screen and measure the dynamic forces transmitted to its metallic support structure, by means of the acceleration g...

Abstract: Multiple frequencies constraints and analytical sensitivity methods were used in the structural optimization design of the side plate of 4YK1860 vibrating screen to reduce the …

Advanced structure and reliable operation: the circular vibrating screen adopts the barrel type vibration exciter and partial block adjustment device. Advanced rivet connection assembly frame structure improves the service life of the equipment. The spring vibration reduction device reduces the impact force on the foundation.

The physical dimensions of the riddle and screen structure were used for estimations of selected parameters required for the screen simulator. ... The examined vibration screen exhibited an amplitude of vibration for nominal excitation frequency close to 4 mm, which is twice that applied in the current research. However, it was similarly shown ...

Adopt four sets of side vibration exciting vibrator and the transmission motor does not take part in the vibration. Motor and exciting vibrator are flexibly connected;Screen box takes motor to drive vibrator through tyre coupling device with advanced structure, high vibration frequency, simple maintenance and durable firm etc. advantages.

The structure of the vibrating screen. 1. Vibration exciter. The main function of the exciter is to enable the working body to vibrate continuously. There are generally two types of vibration exciters for uniaxial vibrating screen and biaxial vibrating screen according to the eccentric reconfiguration method. 2. Sieve box

At present, the lubricating system of vibrating sieve normally utilizes the grease lubrication mode of labyrinth seal or oil sealing sealing.Its mode is in assembling exciter for vibration screen process, or vibrating sieve operates after a period of time, in bearing space lubricating grease being squeezed into vibration exciter and seal space.In vibrating sieve real work, gap is there …

We used finite element method (FEM) to analyze dynamic characteristic of large vibrating screen with hyperstatic net-beam structure. Multi natural frequency, natural modes of …

In order to efficiently separate materials of different particle sizes and enhance structural strength and reliability of the vibrating screen itself, this paper optimizes a large …

The probability screen is influenced by factors like screen inclination, vibration frequency, amplitude, wind speed, air volume, wind blowing angle, screen structure parameters, sand flow rate ...

With the demand for large-scale screening in coal preparation, the width of screen surface may increase up to 5 ms, which results in extremely complex dynamic characteristics of the screen structure. Generally, a vibrating screen may bear the coupled load consisting of intense excitation load initiated by the exciter, the inertial load of the ...

According to Mular et al. [13], FEA is a latest design technique used to analyze operating stresses distributions in screen components and screen structures under vibration and material loading. In addition, FEA could be used as a tool to fine tune vibrating screen designs by altering the stiffness of the screen structure, in order to minimize ...

For the investigation of vibration machinery with an arc-shaped working surface, Xiong et al. [13] proposed a model of flip-flow screen deck and discussed the effects of the exciter speed ...

Structural Analysis and Optimization Design of Linear Vibrating Screen ...

Analysing the forces transmitted from the vibrating screen to its structure, the analytical and experimental values were quite different, mainly at higher frequencies. ... When the screen body amplitude is 3.10 mm and the excitation frequency is 15.84 Hz, the elastic screen surface with variable vibration intensity achieves the best screening ...

The structure boasts small vibration amplitude, high frequency and big dip angle, while grants the screen with higher screening efficiency and bigger capacity. Stronger Exciting Force ZENITH strengthens the design of vibration exciter, i.e. the vibration source is more stable, and the exciting force is more powerful.

Screening operation is widely applied in metal metallurgy, mining, chemical industry, food processing, and public hazard treatment. 1–3 Vibration screen is a type of engineering machinery that completes the screening process and improves the screening efficiency. 4,5 With the reciprocating vibration of the screen mesh, the processes of loosening, …

The invention provides a vibration screen structure applied to the field of coal and mineral screening devices. A screen (4) is arranged in a box body (1) of the vibration screen structure, a vibrator (5) is further arranged on the box body (1), the vibrator (5) is connected with a motor (6) controlling the vibrator (5) to move, the motor (6) is connected with a control switch (7) …

A dynamic model of vibration screen for cement industry is established in order investigate the working performance of the system. In order to acquire result 3D model of vibration screen is created using solid works 2012. In modelling for simplicity whole mass of vibration screen is considered as equivalent mass which is supported by four spring.

Another kind of vibrating screen for processing moist coal is the high-frequency vibrating screen with parametrically excited screen surface, whose dynamic model is a multiple-DOF plate model [46] or a string structure model [47] and the excitation frequency would have a significant effect on the vibration amplitude of the screen surface.

In this paper, the modal analysis and dynamic simulation of a large linear vibrating screen are carried out by using Abaqus, a large general finite element software, and an improved scheme …

The HZXZ300x200 Type Vibrating Screen, shown in figure 1, consists of a vibration box, a universal joint, a transmission system, and a support frame, totaling approximately 5 tons in mass.The vibrating box includes a feed box, screen box, and discharge box, with the entire vibrating box weighing around 3.5 tons.

Drive (1): It drives the whole vibrating screen mechanism and provides the necessary force to transport materials across the screen.This means that there is a need to set the drive in a way that it will be able to use energy in the most efficient manner depending on the use of the machine which may differ from one industry to another, such as mining or …

Compared with a traditional unilateral-driven large vibrating screen, the proposed dual-side excitation large vibrating screen (DELVS) has a simpler screen structure and less vibration mass, which ...

Vibration Analysis (VA) is a key technique used for maintenance and fault detec­ tion of vibrating machinery. The purpose of maintenance is to analyze how well the machinery is operating …

Structure parameters were then optimized to reduce the unbalanced vibration. The air-screen combination grain cleaning system was used as the research object to tackle the unbalanced vibration that induced by the unbalanced rotor system …

The virtual prototype of circular vibrating screen was Established, and the overall structure and working principle of the device were described in detail.The natural frequency of circular ...

The flip-flow screen is an effective solution for the screening of high-water and fine materials. In this study, a flip-flow screen with crankshaft-link structure (FFSCLS) was proposed, and kinematic model governing the vibration of the screen are also presented.

In this paper, the modal analysis and dynamic simulation of a large linear vibrating screen are carried out by using Abaqus, a large general finite element software, and an …

ing screen structure, and the figures are omitted. It indicates that low-order modes of the whole vibrating screen structure are related with rubber spring sup-porting equipment. Dynamic performance of the rub-ber spring supporting equipment has great influence to vibrating screen structure's vibration performance.