I. Overview.
Tubular screw conveyor, also known as screw feeder, is mainly used
for conveying powdery and granular materials between inclined
rooms. The maximum feeding size is less than 5mm. It has the
characteristics of lightness, quietness and airtightness. It can be
customized according to user requirements. Diameter, different
length, different inclination, and can be equipped with a speed
regulating motor to continuously adjust the speed to achieve the
purpose of quantitative feeding.
Characteristics are below:
1. Large bearing capacity, safe and reliable
2. Strong adaptability, convenient installation and maintenance and
long service life
3. It can convey in reverse, and it can also make a conveyor convey
materials in two directions at the same time, that is, towards the
center or away from the center.
4. Good sealing, the shell is made of seamless steel pipe, and the
ends are connected with each other by flanges, and the rigidity is
good.
5. Easy to load and unload. The horizontal screw conveyor can be
loaded and unloaded at any point on the conveying line; the
vertical screw conveyor is equipped with a relatively screw-type
reclaiming device, which has excellent reclaiming performance; the
use of the screw shaft that is in direct contact with the material
pile has automatic reclaiming performance The capacity can be used
as a reclaiming device for other types of ship unloading machinery
in the port.
II. Working principle and structural characteristics
The screw conveyor uses the rotating screw to move the conveyed
material along the fixed casing to carry out the conveying work.
The head and tail bearings are moved to the outside of the casing.
The hanging bearing adopts a sliding bearing and is equipped with a
dust-proof sealing device. The bearing bush is generally used
Powder metallurgy, the conveying cement adopts felt bearing bushes,
and the suspension shaft and the screw shaft are connected by
sliding blocks.
III. Instructions for use
1. The center line of the trough and the screw shaft should
maintain good coaxiality.
2. The joints between the sections of the trough should be tight
and there should be no misalignment. Gaskets can be added between
the sections and between the top cover and the trough to ensure the
sealing of the trough. At the same time, the length error of the
trough can also be adjusted.
3. The gap between the inner wall of the trough and the spiral body
should be equal.
4. The drive shaft and the screw shaft should maintain good
coaxiality. When adjusting, the height of the drive device can be
adjusted with the help of a spacer.
5. After the spiral body is installed, a static balance test should
be carried out.
6. The intermediate suspension bearing should reliably and properly
support the connecting shaft to avoid radial deformation of the
screw shaft. The installation can be achieved by adjusting the
gasket between the bearing bushes.
7. After the whole machine is installed, check whether there is any
sundries in the machine and whether all lubricating places are
filled with enough lubricating oil.
8. During the no-load test run, the bearing should not leak oil,
and the bearing temperature rise should not exceed 20°C. During the
load test, the bearing temperature rise shall not exceed 30°C.
IV. Technical Datas
