Function and Selection Requirements of Vibrating Screen Spring

As we all know, the vibrating screen is a kind of physical screening equipment which uses the high frequency excitation force brought by the vibrating motor to vibrate rapidly for the purpose of moving material screening. Therefore, "vibration reduction and noise reduction" has become an indispensable topic in the preparation and application of vibrating screen. If a vibrating screen equipment does not have a good vibration and noise reduction process, not only will the production process be unsustainable due to the intense noise, but more importantly, the strong anti-seismic force is also a destructive upper damage to the vibrating screen itself. The vibration screen frame is broken and the outlet is cut off due to the inadequate vibration reduction measures. Cracks and so on have not never happened. Spring is a widely used shock absorber in society. Vibrating screen is no exception. Today, DAHAN Vibrating Screen Powder Machine manufacturer just like everybody introduced in detail the actual role played by spring in screening equipment and the different selection of spring by different equipment.

Spring plays an important role in cushioning and shock absorption of vibrating screen

Vibrating screen spring is a commonly used elastic element, which is widely used in various vibration equipment. It is an indispensable shock absorber in the operation of screening equipment. Its position in the vibration screen is generally between the main screen body and the base. It is a buffer device between the box body and the support frame. It bears the task of force and bounce. The material can keep moving without damaging the shock absorber of the box. The spring of the vibrating screen has the characteristics of good stability, low noise, good vibration isolation effect and long service life.

Vibrating screen spring can be divided into three kinds according to material: rubber spring, composite spring and steel spring. The appearance, characteristics and shock absorption effect of different kinds of spring are different, and each has its own advantages and disadvantages. Therefore, it is necessary to select according to the different sieving equipment in order to play a better shock absorption and cushioning function. Choosing the suitable shock absorber spring of the vibration screen should consider the material, type and quantity. Only by matching the specifications of the shock absorber spring reasonably can the service life of the vibration screen be ensured.

How to Choose the Suitable Shock Absorbing Spring According to the Type of Vibrating Screen

In order to know which kind of vibration screen spring is suitable for our own fine screening equipment, we must first make a comprehensive understanding of the characteristics and advantages of different springs, and then make a one-to-one comparison and selection according to the operation characteristics of our vibration screening equipment. Common vibration screening equipment mainly includes: linear screen, rotary screen, vibration platform. Next, Dahan specifically introduces the application and classification of three common vibration screen springs in the family of vibration screens.

Selection of Vibrating Screen Spring Based on Material

A. Steel spring:

Advantages: It has long service life and is not affected by ambient temperature. It is very suitable for the use of stainless steel vibrating screen series, such as rotary vibrating screen, light linear screen, small heavy screen and probability screen. In addition, this kind of spring is widely used on vibration platform with load less than 1 ton. It can be said that it is a widely used shock absorber.

Disadvantage: When exposed, it can not meet the European CE standard, because the hardness factor is not suitable for large vibration screens, and the swing of the relative equipment in the starting and stopping process is larger.

B. Rubber spring:

Advantages: Internal friction damp is much larger than metal spring, the amplitude is stable when the resonance zone is reached, and the sound insulation effect is excellent. It is suitable for CE certification of European standard. It is widely used in stainless steel vibrating screen series such as light linear screen, vibrating feeder and large efficient vibrating screen and YK series vibrating screen for export. It has a bearing capacity of more than 1 ton. Springs of this material are also commonly used on vibration platforms.

Especially when the vibrating screen is used in flammable and explosive industries, the selected equipment must meet the requirements of explosion-proof level. Besides the explosion-proof vibration motor, the shock absorber spring is no exception, because the common steel spring will have a certain friction with the spring fixing ring in the operation of shock absorber, which will easily cause small sparks, and the explosion-proof installation is necessary. The situation threatens; therefore, Dahan Vibrating Screen manufacturer recommends this type of natural rubber shock absorber spring.

Disadvantage: Because rubber spring is made of high polymer material, its stiffness is greatly affected by temperature, and its oil resistance and light resistance are poor, so it is easy to aging.

C. Composite spring:

The advantages of steel spring and rubber spring are synthesized, but the effect of shock absorption and vibration isolation of rubber spring is not good because of the relationship between hardness, and it is not widely used by design experts here without detailed introduction.

After selecting the material of vibration screen spring, it is also very important to determine the number of vibration screen springs. Effective shock absorbers need to calculate and design the number and distribution of vibration screen springs according to the body specifications, output, exciting force, dynamic and static load parameters of the vibration screen. The manufacturer of vibrating screen (Dahan Machinery) has obtained professional advice, otherwise it may not achieve the expected shock absorption effect.a