Anyone who knows the vibrating screen knows that the linear vibrating screen uses the vibration motor to excite the material as a vibration source, so that the material is thrown up on the screen and moves forward in a straight line at the same time, the material enters the feeding port of the screening machine uniformly from the feeder. Several specifications of sieve on-screen and under-screen are produced through the multi-layer screen, which are respectively excluded from the respective outlets. During the operation of the linear sieve, material deviation is a common problem, but many people still do not know how to solve it. Today, the editor of Shaker Industry Network will share with you 7 reasons for the deviation of linear screen materials.
1.Vibration motor improperly installed
Since the linear vibration screen is used to transport and screen the material, it is pushed by the vibration source body, that is, the vibration motor gives the material a fixed-size excitation force in a fixed direction. Therefore, when the material is not well conveyed, basically It can be judged that there is a problem with the mounting angle of the vibration motor.
2. Heavy equipment workload and long running time
Whether it is human beings or equipment, there is a certain limit to the amount of work that can be done each day. People who work for a long time will be tired or even sick, and the equipment will fail. Compared with a relatively large linear vibrating screen, due to its heavy weight, if you add large-scale screening labor over many years, some parts of the body will become loose due to this long repeated vibration and strong inertia. , Which may cause the angle of the vibration motor to change, and the phenomenon of material deviation.
3. Not evenly feeding as required
The requirements repeatedly mentioned in the manual of the linear vibrating screen are: uniform feeding. Because if the material is fed more or less, it is easy to cause the sieving accuracy to be unstable, and due to the large amount of material, the material stress deviation is large, and the problem of the material sideways appears.
4. Aging and loosening of parts such as the shock absorption spring of the screen body
In addition to the vibration motor providing the main screening source power to the linear vibrating screen, the linear vibrating screen damping springs, bouncing balls, sealing rubber rings, etc. that are due to shock absorption also affect the vibrating screen force and the linearity more or less. The water of the vibrating screen body is stable.
If a certain part has problems such as aging, the linear vibrating screen will be uneven and the screen will be unstable, which will cause the problem of the deviation of the discharge direction. In severe cases, there will even be sudden abnormal noises, and the severe life of the linear vibrating screen will be greatly reduced. And other issues. Therefore, it is necessary to regularly inspect and maintain the equipment. In addition, the use of parts and materials is also very important.
5. The center of gravity of the linear screen itself is unstable or the position of the eccentric block of the motor is unbalanced
Today's vibrating screen equipment market is fiercely competitive and the market is too saturated, which leads to chaos in the market. Some people choose to recognize low prices, which will inevitably be exploited by unscrupulous manufacturers to sell inferior imitation linear vibrating screens at abnormal market prices. Second, it doesn't have any technical content, so you must keep your eyes open when purchasing equipment and purchase equipment from regular manufacturers.
6. Different materials and stiffness for shock-absorbing spring
It is also a quality problem that is often talked about. The importance of damping springs to linear vibrating screens is no less than that of vibration motors. He plays a pivotal role in maintaining the stability of linear vibrating screens and extending the life of linear vibrating screens. Many prices are much lower than Manufacturers with normal sales prices rely on cutting corners of parts and consumables to attract customers, which eventually leads to heavy losses for some customers.
7. Screen box deformation
The screen box refers to the screen frame and the screen surface fixed around the screen above the vibration motor and below the feeding port. Under normal working of the linear vibrating screen, especially the large-scale and high-frequency linear vibrating screen, the screen frame needs both the gravity of the large-scale screening material and the strong excitation force of the vibration motor. If the strength is not enough, it is easy to deform, Damage problem. The strength of the screen box mainly depends on the material selection, welding process and additional stable design of the manufacturer.
In the case of material deviation in production, you can find out the root cause of the failure and the corresponding solution according to the above 7 reasons. In addition, in daily production, you should be familiar with the working principle, performance and common failure phenomena of the vibrating screen, operate it properly, and do daily maintenance to reduce the failure rate and improve work efficiency.