Shaker motor problems Analysis

Laboratory shaker main supporting standard sub-sieve used instead of hand sieve, with time standards, intensity, frequency, uniform advantages. In the process of using the

shaker vibration motor burnout can be considered more common faults, then why could easily cause such failures happen? Below cause vibration motor burned for several reasons and

preventive measures described in detail:  coal crushing plant
1) anchor bolt loosening problems

This is caused by the vibration motor burned one of the major failures due to the special structure of the vibration motor itself, its ends eccentric excitation force generated

per minute to two thousand times the impact on the bolt, and then due to the vibration of the motor itself of the vibration, the bolt is easy to loose, once a loose bolts, in a

short period of time will cause other bolts loose, and even rupture, thus burning motor.  coal production line

Preventive measures: ① often reinforced bolt; ② increased locking devices; ③ foot and motor ground floor to ensure good contact, even by force to make a few bolts.

In the selection, try using one of the seat shell vibration motor (ie, to foot the chassis), place one foot is processed, it can ensure its standards. The seat shell allogeneic

(ie, to the foot end caps at both ends), due to the foot is a graded processing, re-assembled, assembly errors due the presence of the foot is not easy to ensure its ground

level, so that the subject of several bolts force is not easy even while a larger force of a bolt is easy to loose, thus causing the other bolts loose, broken, burned the motor.

2) Installation Issues

Because vibration motor at both ends with heavy eccentric, such as vertical or inclined installation (ie, vertical or inclined axis horizontal), the bearing axial eccentric

block to withstand gravity. If no special device in vibration motor (ie plane bearing), it will adversely affect the bearing, thus shortening life.

Preventive measures: ① Select the vertical vibration motor (ie increase inside plane bearing); ② Avoid vertical or inclined installation.


3) eccentric adjustment

Adjust the eccentric block, mistakenly tune ends eccentric direction reversed, so that the vibration motor torque generated a space, so that the vibration motor work in a non-

normal state, thereby causing burned. Therefore, adjusting the eccentric block, be sure to pay attention to its symmetry, that both ends of the eccentric block to twenty-two

correspondence, or that both ends of the center of gravity of the eccentric shaft parallel with the cable, can not be a different surface states.

4) protective cover sealing problems

Since most of the vibration motor is very poor working conditions, dusty, if shields Mifengbuyan easily into the dust, causing friction eccentric operation, thus burning motor.

So bad place in the work environment, a protective cover to increase the seal, two guards to regularly clean the dust inside.

5) Temperature

Equipment conveying material temperature is not too high. Because the vibration motor is rigidly connected with the device, it can be said as a whole, if the device conveying

the material temperature is too high, it is very easy to cause vibration motor and chassis ground temperature increases, causing cooling difficulties, thereby burning motor.

Preventive measures: ① without affecting the device work under the premise, as far as possible away from the vibration motor high temperature material; ② to find ways to

reduce the temperature of the material.

6) heat problem

General Motors - ends with a fan, work along the casing above the wind flow studs, not only heat faster, but also above the dust cleared, the motor in good working condition.

The vibration motor can be due to fanless cooling, thanks to the natural cooling, plus most of the work environment is very harsh, dusty, dust easily deposited on the surface of

the motor, causing the internal temperature is too high, burning motor.

Preventive measures: ① often clears the motor surface dust to be in good working conditions; ② In the design process, the surface should be smooth, vibration motor, so that is

not easy to accumulate dust, if dust larger environments, you should consider reducing go to cabinet surface cooling ribs, because at this time, not only would not achieve the

cooling effect cooling ribs, but easy to make dust accumulation, impeding the motor cooling.