What Are the Common Fault of Hammer Crusher?
Time:2015-01-19 11:37 Author:clirik
What are the common fault of hammer crusher?
Hammer crusher’s common troubles :
1. The reason of bearing overheating: the shortage or the large quantity of lubricating grease, the lubricating filthy metamorphic, the damage of bearing.
Eliminating methods:filling appropriate lubricating grease, the grease should be 50% of its space volume, cleanout the bearing, replace the lubricating grease, change the hammer head and the grating.
2. The reason of discharging granularity oversizing: hammer head wear too much, the breakage of the grating.
Eliminating methods: change the hammer head and the grating.
3. The reason of yield decreasing: the gap of grating is blocked, feeding in raw material is asymmetry.
Eliminating methods: parking, cleanout the stemming of the grating gap. adjust the organization of feeding in raw material
4. The reason of the elastic coupling generate the rat-tat: the pin roll is becoming flexible, the abrasion of the elastic ring.
Eliminating methods:parking,tighten up the nut of the pin roll,change the elastic ring.
5. The reason of machine’s interior generate the rat
tat: the gouge enter into the interior of the machine, the lining plate fastener is becoming flexible, hammer impact on the lining plate, the breakage of hammer or other parts.
Eliminating methods:parking, cleanout the crushing cavity. check the situation of the lining plate whether is fastening or not. and the interval between the hammer and grating. change other breakage parts.
6. The reason of machine’s vibration: when change the hammer or cone head abrasion can not make the rotor up to standard, the hammer is broken, the rotor is out- of - balance, pin roll is snapped. the triangel tray and disc is broken.
Eliminating methods: discharge the hammer. choose the hammer by its weight, change the hammer and pin roll. electro welding and mending.
The Description Of Hammer Crusher:
Hammer crusher is equipment using high speed rotary hammers to crush materials, mainly applied to the industries of metallurgy, mining, chemistry, cement, construction, refractory materials and ceramics. it can crush hard and soft ores into medium or small size, such as barite, limestone, gypsum, terrazzo, coal, slag, and up to 100 different kinds.
The Advantage Of Hammer Crusher:
High capacity, high crushing ratio
uniform particle size, simple structure
low investment, easy management and maintenance
The Specifications Of Hammer Crusher:
|
Type |
PC400*300 |
PC600*400 |
PC800*600 |
|
Rotor Diameter(mm) |
400 |
600 |
800 |
|
Rotor Width(mm) |
300 |
400 |
600 |
|
Rotor Speed(r/min) |
1100 |
1000 |
960 |
|
Max Feeding Size(mm) |
<100 |
<220 |
<350 |
|
Finished particle size(mm) |
0-10 |
0-20 |
0-25 |
|
Capacity(t/h) |
3～8 |
8～15 |
15～45 |
|
Power(/kw) |
11 |
18.5～22 |
45 |
|
Hammer Number(/pieces) |
12～16 |
12～20 |
20～28 |
|
Dimension(L*W*H mm) |
855*795*860 |
1150*1095*1230 |
2360*1490*1415 |
The Working Principle Of Hammer Crusher:
Hammer crusher mainly consists of frame, rotor, support iron and grate bars. The frame is divided into two parts: upper part and lower part which are welded by steel plates after being cut. liners made of high manganese steels within the frame can be replaced after being worn out. The rotors consist of the turn plate, pin shafts, and hammers which are grouped regularly in the main shaft. the motor drives the rotors to rotate quickly in the crushing cavity, and hammers spread outward as a result of centrifugal force from the rotation of the rotors. large materials entering the crusher through the feed inlet are stricken, impacted, cut and ground by the highspeed hammers to small size. qualified material crushed will be screened out and exit from the gap of the grate bars while the unqualified will be left in the crushing cavity to be further hammered and ground until reach the standard size. the size of the final product can be adjusted by changing the grate bars. The gap between the rotors and the grate bars can also be adjusted according to different requirement. these are the working principle of hammer crusher.
Note: This specification is just referencing, any changes are subject to the products
