English English
Mill drive gearbox

Mill drive gearbox

mill drive gearbox manufacturers, motor gearbox mill drive gearbox, gear mill drive gearbox manufacturer, Ball mill gearbox manufacturers in china, gearbox supplier, mill drive gearbox china, industrial mill drive gearboxes, planetary gearbox manufacturers,browning mill drive gearbox manufacturer

MBY series mill drive gearbox adopts modern gear design and manufacturing technology, absorbs the advantages of similar products at home and abroad, and summarizes the experience of domestic design and manufacture of similar products. It is used in industries such as cement, with low working conditions, low speed and heavy load, safe and reliable, and long service life. Features such as edge conveyor mill drive gearbox specially designed for cement grinding, coal grinding and other purposes. MBY series mill drive gearbox adopts single-stage deceleration, with special oil station, all mill drive gearboxes are hard tooth surface, the precision is up to 6 grades (GB10095-88) or more, high reliability design, design life is durable life, compared with similar products at home and abroad. The utility model has the advantages of small volume, light weight, simple and elegant appearance, simple operation, convenient maintenance, safety and reliability, and long service life.

mill drive gearboxmill drive gearbox

The vertical ball mill is a modern large-scale mechanical equipment. The mill drive gearbox of the vertical ball mill plays a very important role in the whole set of equipment. In short, the power of the general machine is designed and manufactured, and its rated power is Not changing, at this time, the greater the speed, the smaller the torque (or torque); the smaller the speed, the greater the torque. Sometimes in order to obtain a large torque, we need to use a mill drive gearbox to reduce the "primary engine" such as the engine's rotation speed, so as to get a large torque, the car and the like to slow down when going uphill and this is a reason.
It can be said that the mill drive gearbox is a kind of thing that is used by objects with speed, and he is everywhere in our lives, and the use of the mill drive gearbox is also increasing. Such as food light industry, chemical machinery, electrical machinery and electronic circuits closely related to our daily lives. Of course, there are construction machinery, cement machinery, road construction machinery, water conservancy machinery, and other industrial machinery. Moreover, it is also used in some industries found in China's economy, such as mining machinery, rubber machinery, petroleum machinery, etc., all need to use mill drive gearboxes, and the more developed these industries, the higher the requirements and demand for mill drive gearboxes, nationals The economic development is getting faster and faster, and accordingly, the use of the mill drive gearbox has attracted more and more attention.

In our lives, sports are always there, there is speed in sports, we need speed, we must need a machine to achieve the purpose of slowing down. However, we need to slow down in our daily life, factories, industry, manufacturing, machinery, etc. Of course, we need such a machine. This lays the foundation for the wide application of the mill drive gearbox, so the mill drive gearbox is not only used in our daily life, but also in various productions. The use of such a mill drive gearbox is self-evident.
Safety precautions in use.

Ball mill gearbox manufacturers in china

Before use (installation, operation, maintenance, check-in, etc.), you must read the manual and other ancillary materials.
Do use. The knowledge, safety and attention of the machine should be read before use. After reading it, keep it visible to the actual users. A kind of
Professional knowledge and skills are required in handling, setting up, laying out pipes, machine operation, operation, maintenance and inspection.
Personnel with ability to implement. Otherwise, it may cause injury or damage to the machine. Do not disassemble and disassemble the mill drive gearbox in the operation of the equipment. In addition, even when the operation stops, the input and output flanges of the mill drive gearbox are in place.
In the connection with the motor and the other machine, it is not necessary to decompose the oil inspection port, the oil supply and discharge port, and the parts outside the inspection cover. It may cause falling, flying away and other personal accidents or device damage due to the offset of gear teeth. A kind of
Do not use outside the specification of mill drive gearbox. May cause injuries and equipment damage etc. Do not put fingers and objects into the opening of the mill drive gearbox. Can cause injury and equipment damage etc. Do not use the damaged mill drive gearbox. It can cause injury and equipment damage. A kind of
Customer's own product renovation falls outside the scope of the company's quality assurance, and the company is not responsible for it. Don't remove the nameplate. A kind of the gearbox with oil station, please refer to the instruction of oil station.
Mill drive gearbox
 
Performance characteristics of LM vertical ball mill:

1. Low investment cost: The vertical ball mill integrates crushing, drying, grinding and grading and conveying. The intelligent integrated system is easy to operate, and the fully enclosed chassis is safe. The floor space is about 50% of the equivalent ball milling system. Moreover, it can be arranged in the open air, so it can greatly reduce the investment cost.

2. Low operating cost: the vertical ball mill uses the grinding roller to directly crush the ground material on the grinding disc, which has low energy consumption and saves energy by 30% to 40% compared with the equivalent ball mill system; due to the work of the vertical ball mill The grinding roller is not in direct contact with the grinding disc, and the grinding roller and the lining plate are made of high-quality materials, so the service life is long and the wear is small.

3, strong drying ability: Because the hot air is directly in contact with the material in the grinding, the material drying capacity of the vertical ball mill is very strong, saving energy, and by adjusting the hot air temperature, it can meet the requirements of different humidity materials.

4. Simple operation and reliable operation: The vertical ball mill is equipped with an automatic control system, which can realize remote control and easy operation. The vertical ball mill also has means to prevent direct contact between the sleeve and the disc liner, avoiding damaging shocks and severe vibrations.

5, product quality is stable: due to the short residence time of the material in the mill, easy to detect and control the product size and chemical composition, reduce repeated grinding, and stabilize product quality.

6. Convenient maintenance: The hydraulic opening system of the vertical ball mill can replace the roller sleeve and the lining plate by turning the rotating arm, which is convenient and quick, and reduces the downtime loss.

7. Environmental protection and pollution-free: The vertical ball mill body has small vibration, low noise, and the whole equipment is sealed. The system works under negative pressure, no dust overflows, and the environment is clean, meeting the national environmental protection requirements.
Mill drive gearbox


How the LM vertical ball mill works:

    The vertical ball mill drives the mill drive gearbox through the motor to drive the disc to rotate. The material falls from the feed port to the grinding disc through the lock feeder, and the hot air enters the mill from the air inlet. With the rotation of the grinding disc, the material moves to the edge of the grinding disc under the action of centrifugal force. When passing through the annular groove on the grinding disc, it is crushed by the vertical grinding machine grinding roller, and the crushed material is blasted by the wind ring at the edge of the grinding disc. Bring up, the large particles fall directly onto the grinding disc and re-grind. When the material in the airflow passes through the upper separator, under the action of the rotating rotor, the coarse powder falls from the cone to the grinding machine of the vertical ball mill and is re-grinded. The powder is ground together with the airflow and collected by the dust collecting device, which is the product. The moisture-containing material is dried during the contact with the hot air flow. By adjusting the hot air temperature, the requirements of different humidity materials can be met to achieve the required product. Moisture. By adjusting the separator, the thickness required for different products can be achieved.

The speed machine and the mill drive gearbox are equivalent to the iso1328-1995 standard, which has the following technical features:

1.Adopt high reliability and long life design;

2. mby (x) series edge drive mill drive gearbox adopts single-stage deceleration, the pinion adopts integral type, and the large gear adopts assembly type;

3.The gear materials are made of high-quality alloy steel, and the carburizing and quenching process is adopted.

4. the gear precision is high, not lower than the accuracy requirements of level 6 in iso1328-1995;

5.The working condition coefficient is 1.75, and the gear carrying capacity is large.

6.all rolling bearings have a life span of more than 100,000 hours;

7.The transmission is stable, the noise is low, and the service life is long;

8.mill drive gearboxes and bearings are forcibly lubricated and equipped with special oil stations, which can be docked with standard oil station products.

9.the shape is simple and generous, small size, light weight, easy to maintain.

MBY series mill drive gearbox mounting way and dimension, manual.

gear-reducer-manufacturers

gear-reducer-manufacturer

Model
iNPUT SHAFT
output shaft
i=4
i=4.5~5
i=5.6~6.3
i=7.1
g
d
l
g
d
l
g
d
l
g
d
l
Q
D
L
MBY400
270
120
200
270
100
200
270
90
180
270
80
140
270
160
200
MBY450
300
120
220
300
120
200
300
100
180
300
90
160
300
180
220
MBY500
320
140
240
320
140
200
320
110
180
320
100
160
320
180
240
MBY560
340
160
250
340
160
200
340
120
200
340
110
180
340
200
260
MBY630
370
180
250
370
160
230
370
130
200
370
120
180
370
220
300
MBY710
390
200
280
390
160
250
390
150
220
390
140
200
390
260
340
MBY800
425
220
300
425
180
260
425
18/0
240
425
160
200
425
300
380
MBY900
455
240
340
455
200
260
455
180
260
455
180
220
455
300
400
MBY1000
485
260
380
485
240
280
485
200
280
485
200
250
485
320
420
MBY1100
520
280
400
520
260
300
520
220
300
520
220
280
520
360
440

 

Model
a
V
H
h
U
A
F
f
R
S
N
T
B
G
Oil Pump
Weight(Kg)
MBY400
400
1050
850
400
50
820
700
/
275
60
4
27
450
390
YZ25
1450
MBY450
450
1160
950
450
50
900
780
390
305
60
4
27
510
450
YZ25
1950
MBY500
500
1260
1050
500
50
980
840
420
330
70
6
33
550
480
YZ40
2600
MBY560
560
1400
1170
560
55
1080
940
470
370
70
6
33
590
520
YZ40
3050
MBY630
630
1560
1310
630
55
1200
1060
530
420
70
6
39
640
57
YZ63
3400
MBY710
710
1750
1470
710
55
1350
1190
595
470
80
6
39
690
620
YZ63
4900
MBY800
800
2030
1650
800
70
1480
1280
640
500
100
6
39
760
680
YZ63
5800
MBY900
900
2140
1850
900
70
1650
1450
725
575
100
6
45
820
730
YZ63
8500
MBY1000
1000
2360
2050
1000
90
1820
1620
F/3
630
100
8
45
880
790
YZ125
9250
MBY1100
1100
2570
2250
1100
90
1980
1780
F/3
695
100
8
45
950
860
YZ125
11800

Mill drive gearboxMill drive gearbox

Analysis and Treatment of Thrust Bush Wear Accidents of Vertical Coal Mill mill drive gearbox Abstract: Lead smelting operation of lead plant in Huize Smelting Branch: Asa furnace smelting, smelting furnace blowing and other fire method lead smelting metallurgy processes, all need pulverized coal as Fuel and reducing agent; continuous normal supply of pulverized coal is the premise to ensure smelting operation; two RM1500 medium speed roller vertical coal pulverizers are arranged in the pulverized coal preparation process; continuous and smooth operation of the coal pulverizer is a guarantee of smooth production process; However, the thrust slabs of the two coal mill mill drive gearboxes in our factory often have excessive temperature, which cannot guarantee the continuous and smooth operation of the equipment for a long period of time, and cannot guarantee the smooth and smooth smelting process. This paper analyzes the common problems of the coal mill mill drive gearbox, and introduces the causes and treatment methods of the wear and tear of the thrust mill of the coal mill mill drive gearbox.

Key words: vertical coal mill; mill drive gearbox; thrust tile; wear analysis 1. Introduction to coal mill The RM1500 coal mill is a medium-speed roller-type vertical coal mill, which is driven by a motor to drive vertical deceleration. The vertical ball mill drive gearbox drives the upper grinding disc device to rotate; the two grinding rollers are pressed by the hydraulic cylinder, and the material is ground between the grinding disc and the grinding roller, and the grinding roller is driven by the rotation of the grinding disc; the raw coal material is sealed feeding The feeding of the machine enters the vertical ball mill by the lock damper, and the material falls to the center of the rotating grinding disc through the feeding port. Due to the centrifugal force, the material diffuses to the annular grinding roller road, and is further moved to the edge of the grinding disc after being ground by the grinding roller.

The material is mainly crushed and ground by the weight of the grinding roller and the pressure of the hydraulic system. Since the grinding roller and the grinding disc are not purely rolling (the rotation of the grinding disc drives the grinding roller to rotate), the material is subjected to the multi-directional stress, thereby improving Grinding ability and grinding efficiency. The hot air enters the mill from the air inlet of the lower casing. Since the air ring with the inclined blades is provided at the gap between the rotating grinding disc and the lower casing, the gas passing through the wind ring can be evenly distributed in the grinding. The ground material is blown up by the airflow at the wind ring and dried. Depending on the speed of the airflow, all or part of the material is carried by the airflow to the separator. The separator separates the ground material into fine powder and coarse powder by means of a blade and a rotor.

Mill drive gearbox

The fine powder is pulverized with the airflow and collected in the dust collecting device of the system, which is the qualified powder. The qualified pulverized coal is sent into the silo pump by the wind through the pipeline, and is supplied to the Asa furnace and the fumigating furnace for metallurgical smelting; Under the action of the separator blades, it is again grounded on the grinding disc and then re-grinded. The iron block and other debris mixed in the grinding material will be thrown out from the rotating grinding disc and fall into the slag discharge port. When the debris accumulates to a certain extent, the slag discharging door automatically opens to remove the debris.

If the motor rotates normally and the mill drive gearbox does not move, there may be problems with the transmission components, such as serious wear, let the professional check it.
Causes and troubleshooting of vertical ball mill mill drive gearbox
For various reasons, the vertical ball mill mill drive gearbox will have some faults during operation. The cause of the fault is complicated. There are many phenomena mixed together. It is necessary to analyze the faults and eliminate them in time. This requires us to conduct various investigations. According to some data recorded in the usual time, the accurate judgment is made based on the measured results and the environmental conditions.


Whether the mill drive gearbox is in good working condition can be judged from the following conditions:

1) The temperature of each temperature measuring point of the mill drive gearbox is within the normal range, and the heat balance is reached.
2) The oil pressure is normal, and the records are within the normal range without major fluctuations.
3) No oil leakage or water leakage.
4) No abnormal noise during operation.
5) Each alarm switch is turned on without an alarm signal.
6) The interlocking device is in good condition, and it can automatically stop and alarm in time if there is a fault.
7) There is no metal shavings in the double filter and magnetic filter.

Mill drive gearbox
Described separately as follows:
1. mill drive gearbox noise and vibration
a), gear or bearing damage; method: open the cover to check or replace the damaged parts
b), overload or impact load; method: check whether the mill or motor is faulty
c), the bearing is loose; method: check and tighten the fastening bolt of the bearing cap
d), mill end or motor center line offset; method: correct the center line and check the offset reason


2, mill drive gearbox oil leakage
a), oil seal and gasket are damaged or improperly assembled; method: check or replace oil seal, gasket
b), the coupling bolt is loose; method: tighten the bolt
c), the vent cap is blocked; method: check and remove the blockage


3, the mill drive gearbox oil supply pressure drops
a) damage to the oil pump or oil pump motor; method: inspection, repair or replacement
b), the oil station bypass valve is not closed; method: check and adjust the bypass valve
c), pipeline or cooler oil leakage; method: check and eliminate
d), the oil pump suction pipe takes in air; method: check the oil level of the oil station
e), the pressure gauge fails; method: check and verify the pressure gauge


4, the pressure of the mill drive gearbox oil supply rises sharply
a), the oil pipe or bearing inlet is blocked; method: check and eliminate
b), the viscosity of the oil is too high or the pressure gauge is out of order; Method: check and eliminate, check and verify the pressure gauge


5. The diaphragm coupling is shaken or has abnormal noise.
a), the diaphragm coupling bolt is loose; method: check and eliminate
b), the foundation sinking causes the deviation of the center; method: take measures to correct the center line
c), the diaphragm is damaged; method: replace the diaphragm

MBY gearboxes

Mby series mill drive gearbox adopts single-stage deceleration, with special oil station, all mill drive gearboxes are hard tooth surface, carburizing and quenching grinding teeth, the precision is up to 6 grades (gb10095-88) or more, high reliability design, design life is durable life, and Compared with similar products at home and abroad, it has the characteristics of small size, light weight, simple and elegant appearance, simple operation, convenient maintenance, safety and reliability, and long service life.

Model mby400 mby450 mby500 mby560 mby630 mby710 mby800 mby900 mby1000 mby1100

Mainly used in energy, petroleum, lifting, construction, shipbuilding, heavy industry, mining, port, transportation, aviation, steel, marine, water conservancy, engineering machinery and other fields.

 

With Best Regards,
Cherry Zhang ( Sales Department; Miss. )   
NER GROUP CO.,LIMITED
Yantai Bonway Manufacturer Co., Ltd                                      
Tel:+86-535-6330966
Mobile:+86-18865558975
www.planetary-gearbox.com
https://twitter.com/gearboxmotor 
https://www.facebook.com/somill drive gearboxes1993
Viber/Line/Whatsapp/Wechat: 008618865558975   
E-mail: cherry@somill drive gearboxes.com; Skepy ID:Live:cherry_3053
Add:No.5 Wanshoushan Road Yantai city Shandong Province, China

 

Date

09 September 2019

Tags

Helical gear

 sogears manufacturing

The best service from our transmission drive expert to your inbox directly.

Get in Touch

NER GROUP CO.,LIMITED

ANo.5 Wanshoushan Road
Yantai, Shandong,China

T+86 535 6330966

W+86 185 63806647