Simple movements, sophisticated technology
We listen very carefully…
The close relationship we enjoy with our customers ensures more than just the smooth completion of a transaction or order. It also makes our customer service second to none. Through conversations and contact with our clients and partners, we can appreciate and respond to their demands and requirements. Something that the competition in the Far East find very hard to do… This contact also allows us to react quickly to the latest market developments, while also optimizing our traditional product portfolio. Although our engineers at Würges are experts for vibration technology, they also keep their ears open when talking with customers whose expertise lies in other industries or technologies.
This listening and learning allows Würges to develop brand new applications and uses for its motors. Let us take you and your company into a world where everything is in motion!
Extract from the instructions of operating
Tasks to be solved
Compaction of bulk product, discharge means for storage bins (fine grained product) vibrating tables and jacks, moulds and formework for the concrete industry, pocket filters, discharge means for storage bins (coarse grained product) chutes, small screens, filters for flexible tubes, screens systems, chutes (coarse grained product) long filters in flexible tubes.
| n | bg max | s max |
|---|---|---|
| 3000 | 15 | 0,3 |
| 1500 | 10 | 0,8 |
| 1000 | 8 | 1,4 |
| 750 | 6 | 2,0 |
Formulae for nonbending systems
(1) The torque of vibrating constructions with the vibration motor is:
(2) equally is:
(3) The vibration amplitude results from (1) and (2) as:
(4) As the torque of vibration motors is indicated in the leaflet,
the calculation results from speed and centrifugal force. As a means
of security the acceleration factor must be examined. This factor is
determined by the construction engineer. This represents the swinging
mass with respect to the acceleration of the earth.
The maximun acceleration factors, which are subordinated to the synchronous speeds must not be exceeded. Otherwise ist could occur that the machine parts do not resist to the load of vibration with the result that they can break.
Explanation of formula signs
| Denomination | Formula symbol | Value | Measureunit |
|---|---|---|---|
| centrifugal force of the vibration motor | F | * | N |
| workingtorque of the vibration motor | MV | * | cmkg |
| mass of the vibration motor | mV | * | kg |
| synchronous speed of the vibration motor | n | * | min-1 |
| amplitude (2x) of the construction | s | - | cm |
| mass of the vibrating construction without vibration motor | m | - | kg |
| workingtorque of the vibrating construction without vibration motor | M | - | cmkg |
| acceleration factor | bg | ||
| acceleration | g | 9,81 | m/s |
* These data can be found in the data sheets.
Proper handling .... Instructions of operating
Instructions of operating
Important remark concerning the personal safety of operators
The operation manual must be read and understood by everybody in
charge of putting the vibration motors into operation, maintenance
and repair work For the better understanding of the operation manual
also the list of spares for the motor type concerned must be consulted.
Würges vibration motors are constructed according to the prior art.
When used as provided they are save in operation.
As it is implied in the constructional feature, vobration motors can
generate destructive forces. When improperly used, vibration motors
are apt to provoke danger, e. g. the vibration motors or parts thereof
can drop after getting loose form the holding fixture. For this reason
safety measures must be adopted. Putting vibration motors into
operation without protective cover is forbidden.
Remarks concerning the assembly
bration motors must be mounted only on plane and nonbending mounting surfaces. They must not be distorded. Only screws of grade 8,8 and nuts of grade 6 must be used. The screws must be secured from getting slack, e. g. by spring washers or the like. Screws and nuts must be retightened after about two hours of operation if they have slackened. Their firm seating must be examined. Further examinations for tight seating of the screws and nuts must be performed once a day.
Starting torques
The minimum starting torques are for:
4 M5 = 8Nm , M 8 = 30 Nm , M10 = 55 Nm , M12 = 90 Nm
M16 = 150 Nm , M20 = 280 Nm, M24 = 450 Nm
Attention: If the fastening screws are slack is impending danger
that the feet of the vibrator can break.
Instructions for establishing the power connection
The power connection must be established only by persons who are skilled in the art. The voltage and periodicity of the power line must be in agreement whit the data on the machine plate. The motor must be connected to a power system which meets the VDE requirements (VDE = Association of German Electricians). Each motor must be connected in series with a thermal circuit breaker, the power rating of which must be set according to the data on the machine plate.
Only a flexible cable must be used for the connection. We recommend the following cable type: NSSHÖU-J 4 x 1.5’, of 14 mm diameter, according to VDE 0250. Cables of plastic are unsuitable
Setting the centrifugal force
Provided that no different centrifugal force had been indicated in the order sheet, the motor has been set for the full centrifugal force. In order to be able to change the centrifugal force both protective covers must be taken off. Once the protective covers are taken off, the centrifugal force may be changed as desired. But it must be observed that the adjustment is the same on both sides. The values for setting flywheels for the vibration motors are given in the list of spares
Attention! After the adjustment, loosened screws must be
tightened again and removed protective covers must be mounted again.
If this is not observed, risk of accidents is impending.