5 methods to solve vibration motor frequent trip problem

Almost everyone knows the basic operation of vibration motor, but there are some points we need notice in the process of operation,especially the vibration motor frequent trip problem, according to our technical personnel’s experience, now we introduce some methods to avoid the trip for your reference:
1.Capacity unconformity or aging of vibration motor air switch and overcurrent protective device, just change the switch will solve the problem.
2. The wire cable skin of vibration motor is broken ,this is mostly due to wear and tear during long period use,it can be wrapped with tape.
3. Bearing damages or lacks oil,lead to overload trip.Thus we should replace the bearing timely.
4. Vibration motor power supply doesn’t work,or circuit breaker gets aging.
5. The magnetic circuit performance of vibration motor decline,causing too much current.
The above several problems are relatively simple to handle,according to the corresponding reasons, users themselves can solve them through adopting corresponding methods. If the trip of vibration motor is not caused by the above several reasons, please do not hesitate to contact with us,our engineer will solve the problem for you.

What Factors Lead to Inflexible Rotation of Conveyor Roller?

In our daily use of conveyor roller, inflexible rotation phenomenon may occur during the operation, what factors lead to inflexible rotation of conveyor roller? Let’s see the following two parts:
The manufacturing quality of belt conveyor idlers
The manufacturing problems of belt conveyor mainly are bearing lacks of rigidity, difficult to ensure the roller assembly accuracy , which restricts the operation flexibility.
Sealing, lubrication and maintenance
Because of belt conveyor working environment is relatively poor, generally, operation site is full of dust, and the bearing sealing form has big influence on roller operation flexibility. If sealing poor, dirt can easily enter into the bearing inner which causes inflexible rotation; in addition, if bearing grease adopts common calcium base grease ,it is easy to change color and become dry, can't reach a very good lubrication effect.

 

How to solve inflexible rotation problem of conveyor roller?

To ensure accuracy during conveyor roller manufacturing process 
Such as the inner hole precision of punch bearing housing should reach grade 3, dimensional tolerance,coaxial degree and ovality of the pipe body two ends must conform to the national standard,can not exceed the tolerance.
Sealing and lubrication
in addition to ensure the quality of manufacture, also require better lubrication materials, such as lithium base grease which can improve the bearing lubrication performance, this is very necessary to prolong the service life of roller.
Bearing seat adopts labyrinth seal structure of centripetal ball bearing supporting and plastic sealing ring, which can guarantee reasonable bearing stress of roller during operation,but also ensure good dust prevention effect, small resistance, and convenient installation and easy maintenance, it can effectively reduce the conveyor operation cost at the same time. 

Difference between Tapered self-aligning roller and Friction self-aligning roller

Tapered self-aligning roller is similar with Friction self-aligning roller in structure which are mentioned when introduce the belt conveyor, their purpose is protecting belt and preventing belt deviation. However, in the process of actual use, there is a big difference between them.
The main difference:

Tapered self-aligning roller

1.Stability performance: these two kinds of roller have their own advantages and disadvantages. Tapered self-aligning roller provides a more stable transport environment for belt and material, but since the tapered roller with a certain angle, if carries the material for a long time, it will increase the radial offset of roller. While friction self-aligning roller has a stable structure so that it can carry material for a long time and won’t be influenced. but there is a certain angle between belt and roller due to design of friction pulley, the joint degree of friction self-aligning roller is lower than tapered self-aligning roller, which will reduce the stability performance of belt conveyor.
2.Friction coefficient: concerning this aspect, tapered self-aligning roller has advantage over the friction self-aligning roller, tapered self-aligning roller has a special body design of roller, it could extremely increase joint degree of belt and roller to make the belt adapt to tapered roller, it also greatly reduce the force of friction.

Friction self-aligning roller

3.Sealing Performance: the sealing performance of friction self-aligning roller is better than tapered self-aligning roller, the friction one adopts the design with independent installation of the friction pulley to promise a good sealing performance, however, because tapered self-aligning roller has a different diameter of pipe, it increase the difficulty of seal, meanwhile, performance of seal is also reduced.
4.Production cost: the structure and technology of tapered self-aligning roller are much simpler, so the cost is low, but if in the long run of using, the friction self-aligning roller is more stable and durable.

The Video show you the introduction of Conveyor Belt Roller

The Video show you the introduction of Conveyor Belt Roller

Belt conveyor roller has the highest quantity and is the most carrying parts of belt conveyor. Impact roller, friction centering carrier roller, belt conveyor roller, and so on are included. It plays the main role to support the belt conveyor and the weight of material, so the conveyor belt works smoothly. Here PK Machinery will show you a better understanding about it.Hope the following video will help you.

This video show that the conveyor belt Idler is mainly composed of steel pipe, shaft, bearing, bearing block, labyrinth seal, etc.It is the complete manufacturing equipment for conveyor belt rollers/idlers in our factory.How much do you know the working of the conveyor belt roller?Here the video will show you the processing of conveyor belt roller.Wish it can help you have a better understanding.

Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, and Vibrating screen, Bucket elevator, Screw conveyor, Scraper conveyor using the world's most advanced technology, we are willing to serve every company to meet your custom needs. our goal is "be the future global leader of mining machinery industry". have any questions, please contact us without any hesitation. 

Tel: +86 373 579 9198

Fax: +86 373 507 1699  

info@pkmachinery.com  

website:www.pkmachinery.com

Address: 289 Yellow River Road, Xinxiang City, Henan Province, China

The daily Care and Maintenance of Motorized Pulley

The daily Care and Maintenance of Motorized Pulley

Are you in trouble with maintaining and repairing motorized pulley when operate the belt conveyor? Come and check this article ,we are sure you will get a satisfied solution ! 
1. In order to create a good condition for normal operation, please check the surrounding environment, fastening bolts, oil leakage, the cable before each start-up.
2. Please start a new pulley with inching running, then it will turn into normal gradually, please check the machine vibration, noise, and temperature heating of each operating component after running for 10 minutes.
3. If oil leakage happens to motorized pulley, please pay attention to check two parts: one is oil seal, check it whether has wear and tear or deformation phenomenon, if any, please replace the cage oil seal timely; the other one is that the air outlet can’t be blocked, if there is blockage, the deposition of dust, grease and sundries shall be removed as soon as possible to ensure smooth access.
4. Regularly check the oil level in the drum is an important part of the daily maintenance, besides, regulation of the oil level height is one of the conditions to ensure the normal operation of the pulley. Inspection methods can be referred according to operation manual.

What Should Users Notice before Running the Motorized Drum with Anti-reverse

Recently, we received a feedback from our Thailand client that the motorized drum with anti-reverse of belt conveyor didn’t rotate, here PK Machinery will explain the notice we should note which can avoid this problem effectively:
1.After installation of the whole set belt conveyor, we should check the motorized drum carefully before commissioning, check and make sure the power supply must be identical to the one stipulated by the nameplate.
2.If the motorized drum with anti-reverse, the wires connection must rotate according to the indicated rotate direction.

 

 3.Check if the oil level of the drum body is satisfied before running. The methods are suggested as below: 
Rotate the drum body, keep the oil outlet as high as 2/3r, see the following figure, then remove the plug and make sure the oil surface is level with the outlet.
(This is important, if without oil, the motorized drum will occurs much noise, even not rotate, and finally it will damage)

Introduction of YZO vibration motor

YZO vibration motor has an extremely wide application scope in many engineering projects as it is a universal type of motor, such as the vibrating equipment used in hydropower construction, building materials, chemical, mining, coal, metallurgy industries etc. The vibrating equipment includes vibrating crusher, vibrating screen, vibrating packing machine, vibrating shake-out machine, vibration molding machine.
The exciting source of YZO vibratory motor is produced by power source and vibration source, the exciting force can be adjusted steplessly and it is easy to operate. 

YZO vibrator motor is not only can be applied in general vibrating equipment, but also can work in the forms of a combination of a variable vibration types, such as planispiral, spiral, shaking vibration, combination straight line, combination of long elliptic,compound double amplitude ,these vibration forms can produce new vibration equipment.

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Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, Vibrating screen, Bucket elevator, Screw conveyor, and Scraper conveyor using the world's most advanced technology, we are willing to serve every company to meet your custom needs. our goal is "be the future global leader of mining machinery industry". have any questions, please contact us without any hesitation.

Henan Pingyuan Mining Machinery Co., Ltd 

Address: 289 Yellow River Road, Xinxiang City, Henan Province, China. 

Tel: +86 373 579 9198

Fax: +86 373 507 1699

Email Address: info@pkmachinery.com

Official Website: http://www.pkmachinery.com/

Introduction of Motor IP Grade: The meaning of the second number

0: no special protection
1: drip-proof: vertical drop of water will not directly enter into the motor.
2:15 degrees angle drip proof: within a range of 15 degrees angle, water drop will not directly enter into the motor.
3: 60 degrees angle water spray proof: within a range of 60 degrees angle, water-spray will not directly enter into the motor.

4: water splash proof: splash water in any direction will not bring harmful effects to motor.
5: water spray proof: spray water in any direction will not bring harmful effects to motor.
6: water waves or strong water spray proof: furious waves or strong water spray will not bring harmful effects tomotor.
7: water immersion proof: motor immersed in the water under a stipulated pressure and time, the water inflow will not bring harmful effects.

Introduction of Motor IP Grade :The Meaning of First Number

Motor IP (INGRESS PROTECTION) grade system is drafted by IEC (INTERNATIONAL ELECTROTECHNICAL COMMISSION ).IP grade is composed of two numbers, the first number represents for anti-invasion grade of external objects and dust, the second the number shows that the sealing degree of anti- invasion of moisture and water, if the number is greater, the degree of protection will be higher.
0: no special protection
1: it can prevent external objects with solid diameter larger than 50 mm entering into the casing.
2: it can prevent external objects with solid diameter larger than12 mm entering into the casing.
3: it can prevent external objects with solid diameter larger than 2.5 mm entering into the casing.
4: it can prevent external objects with solid diameter larger than 1 mm entering into the casing.
5: protection against dust, it can prevent dust from entering to affect the normal operation of the product, and prevent dust contacting the inner casing or parts.
6: sealing against dust, it can completely prevent dust from entering into the casing and prevent the dust contacting the inner casing or parts.

The Introduction of Vibration Motor

►Customer reference list

CUSTOMER REFERENCE LIST (YEAR 2012-2014)
NO.	EQUIPMENT	VENDOR'S SCOPE OF SUPPLY
		PROJECT LOCATION	QUANTITY	TIME
47	Vibration motor	Kenya	2 Sets	20140926
42	Vibration motor	Indonesia	16 Sets	20140500

► Brief introduction:
Vibration motor is the general exciting vibration source of all kinds of vibrating machines such as vibrating screen, vibrating feeder, vibrating conveyor, vibrating flask shaker, vibrating crusher, vibrating molding machine, vibrating sand mixer, vibrating buffing machine, block-proof device, vibrating test-bed, etc.

► Features :
1. High efficiency running
2. Stable vibrating frequency
3. Dust-proof and water-proof
4. Strong resistance to vibration, large kinetic motion
5. Exciting force could be infinitely variable controlled.

►Application
Vibrating motor can be widely used in power plant, building materials, grain, coal, mine, metallurgy, chemical industry, light industry, casting, railway, port and other industries. The products have been well received by our customers. 

The Using of Conveyor Rainproof Cover

►Customer reference list

CUSTOMER REFERENCE LIST (YEAR 2012-2014)
NO.	EQUIPMENT	VENDOR'S SCOPE OF SUPPLY	QUANTITY	TIME
		PROJECT LOCATION
2	Conveyor Cover	Bolivia	350 Pieces	20120322
3	Conveyor Cover	Taiwan,China	100 Pieces	20120400
38	Conveyor Cover	Madagascar	1182 Pieces	20140400
48	Conveyor Cover	Arabia And The United Arab Emirates	485 Pieces	20141015

► Brief introduction:Conveyor rainproof cover is made by color steel plate.It is used to protect transported material, conveyor belting, idlers and structure from rain, wind, dust during transportation and reducing material loss.Conveyor cover makes operation and transportation safe and reliable,it also plays an important role to purify the environment.

► Application
Anti-rain cover is suitable for 500/650/800/1000/1200/1400/1600/1800/2000mm width belt conveyor in power station, cement plant, steel mill, chemical plant, port, dock, mine, coal plant etc.

► Features
1.Anti-rain,dust and wind
2.Safe to Handle and easy to Maintain
3.Light weight,simply assembly and dismantling
4.Long service life
5.Easy access for belt and idler repair

► Advantage

    1. Proven strength, adaptability and low maintenance. 

    2. Lightweight elements simplify assembly, dismantling and re-use. 

    3. Zinc coating of the sections and support bands combine to provide long service life. 

    4. Designed to provide easy access for belt and idler repair. 

    5. Effective length 900mm; can be overlap joint. 

    6. Thickess 0.5~1mm; 

    7. Fixed type, whole open-close type, particle open -close type, deviation conveyor hood etc;

► Selection condition

    1.What is the conveying material and its physical characteristics? such as bulk density, feeding size, temperature, mositure content etc.

    2. What is the processing capacity of the elevator?

    3. What is the lifting height of the elevator (distance between inlet and outlet)?

Five Maintenance Tips for Belt Conveyor Roller

Belt conveyor roller is an important part for belt conveyor. It accounts for 35% of a belt conveyor total cost and bears more than 70% of the resistance. So the maintenance of conveyor roller is particularly important. Today PK Machinery will share some maintenance tips with you:

1. Generally speaking, the roller normal service life is more than 20000 h and it doesn’t need maintain. But according to application place and load capacity, we should formulate a maintenance date correspondingly, as well as cleaning, adding grease and maintenance etc. For the rollers which with abnormal sound or rollers don’t rotate, please to replace timely.

2. When replace the bearing, keep the bearing opening outward, spare proper clearance when put the bearings into the roller.

3. The labyrinth seals should adopt original accessories, put the seals into the roller respectively when assembly.

 

4. During operation, the rollers should be protected from heavy items hitting the tube.

5. In order to ensure the roller sealing performance and using performance, free disassembly roller is prohibited.

Please do not hesitate to contact us if you have any inquiries about our products or company, we are ready to serve you better. 

Henan Pingyuan Mining Machinery Co., Ltd.
Address: 289 Yellow River Road, Xinxiang City, Henan Province, China. 

Tel: +86 373 579 9198

Fax: +86 373 579 9198

Email Address: info@pkmachinery.com

Official Website: http://www.pkmachinery.com/

What Should We Note During the Installation of Large Angle Belt Conveyor

Large angle belt conveyor can be transported with large inclination , it even can be vertical. It adopts sidewall belt as the main part. The advantages are: large conveying amount, small space occupation ,small noise etc. which is widely used for conveying powder, blocked material. Here PK Machinery will introduce the installation notes during installation:

1.Check whether the components of large angle belt conveyor are complete or not

Generally speaking, belt conveyor includes lots of components: head & tail frame, concave & convex segmental arc frame and middle frame, however, the quantity of trough roller frame, rollers and sealing cover is big, you need to check carefully and guarantee the components are transported to the right place.

2.Installation, positioning and welding of head and tail frame, concave and convex segmental arc frame

First of all, please find the center line of the belt conveyor by using a steel wire. When installation, please make the head & tail frame, concave & convex segmental arc frame subject to the center line.

 

3.Check belt running and adjust the belt if it runs off tracking

After installation of belt, trough roller, self-aligning roller and vertical roller, connect the power supply , run the belt and adjust the belt offset distance .

4.Installation of large dip Angle belt conveyor accessories and bolts

After adjusting the belt, you can start to install the sealing cover, head cover and fastening bolts.

Please do not hesitate to contact us if you have any inquiries about our company or products, we are ready to serve you better.

Henan Pingyuan Mining Machinery Co., Ltd

Address: 289 Yellow River Road, Xinxiang City, Henan Province, China. 

Tel: +86 373 579 9198

Fax: +86 373 507 1699

Email Address: info@pkmachinery.com

Official Website: http://www.pkmachinery.com/

Installation and Notes of Belt Conveyor Anti-rain Cover

1) Open cover and fixed cover are manufactured with the galvanized steel plate or the colorized coating steel plate. Generally ,there will be 1 piece of open cover and 7 pieces of fixed covers installed every 8 pieces covers, the 2 kinds covers also can be installed side by side alternately ( it also can be matched according to customer’s requirement). At first, fasten the fixed conveyor with drilling rivets and based on the line which is upward 30 mm from the top of Z type steel, fix a mounting hole every 450 mm, every piece of cover overlaps 2 wave crests. Open cover overlaps above the fixed covers in order to open conveniently.

 

2) The Z type steel or the connection angle iron which is the main support frame of the conveyor cover, the length is equal to the length of the installed conveyor cover

The Z type steel or the connection angle iron is welded on the channel steel or the little stiffening angle iron on both sides of the conveyor

3) Install the covers (fixed covers) from one side to another side along the conveyor, during installation, people are not allowed to stand on the covers and no hard beating and hitting is allowed.

4) Mount the fixed covers on the Z type steel with the drilling rivet. The mounting points are not less than 4 on every piece.

5) 1 piece of observation window cover could be installed every 10 pieces for convenient checking and inspecting. It is decided by users.

6) Salient point cover is only used for the salient points of the convex-concave of the conveyor. Deviation switch cover is only used for covering the deviation switch. These 2 kinds covers also can overlap the fixed covers.

 

4. Note

1) During the installation, please handle the anti-rain cover carefully and avoid scratching.

2) After installing the accessories, please clean the surface and paint the scratched points again.

Installation Drawing of Deviation Switch Cover

 According to the location of deviation switch, please install and center the drilled cover, then put the sealing strip on the cover open point flatly according to the height of the switch box cover , then install the switch box cover with 12－Φ5 rivet.

Installation drawing of deviation switch cover .

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Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyor, and Vibrating screen, Bucket elevator, Screw conveyor, Scraper conveyor using the world's most advanced technology, we are willing to serve every company to meet your custom needs. our goal is "be the future global leader of mining machinery industry". have any questions, please contact us without any hesitation. 

Henan Pingyuan Mining Machinery Co., Ltd.

Address: 298 Yellow River Road, Xinxiang City, Henan Province, China.

Tel: +86 373 579 9198Fax: +86 373 507 1699Email Address: info@pkmachinery.com

Official Website: http://www.pkmachinery.com/

Installation of Open Belt Conveyor Cover

View 1: Installation drawing of whole open –close type 

 

View 2: Installation drawing of half open –close type (double chip open- close type) 

 

1) installation of handle 

After overlapping the open cover and fixed cover, based on the center line of the cover, the location upward 250mm is the center line used for installing the handle (it can be adjustable according to height of the conveyor support frame). Put the handle straightly and drilling a 4－Φ5 hole, then fasten with the rivets.

2) installation of hinge 

Adjust one side of the cover up higher from the top of the Z type steel (angle iron) 5mm, inward 140mm from the front and back sides of the cover, and upward 27mm is the location of the hinge, then drill holes Φ5 and fasten with the rivet. Others holes are also fastened with the rivets. 

3) installation of the lock catch

After installing the hinge, on the other side of the cover, inward 185mm from front and back sides of the cover, then based on the bottom, upward 36mm and 77mm , drill holes Φ5 and fasten the lock with the rivet, next keeping the lock locking( clamp status), and then putting the lock nose on the Z type steel straightly and drilling hole to fasten.

4) installation of the open cover

Overlap the open cover on the bilateral fixed covers. The overlapped length should be the length of 2 pitches of waves, then put the other side of the hinge appressed on the angle iron and drill hole 4－Φ5 with the rivet fastened.

Please do not hesitate to contact us if you have any inquiries about our products or company. We are ready to serve you better. 

Henan Pingyuan Mining Machinery Co., Ltd.

Address: 289 Yellow River Road, Xinxiang City, Henan Province, China. 

Tel: +86 373 579 9198

Fax: +86 373 507 1699

Email Address: info@pkmachinery.com

Official Website: http://www.pkmachinery.com/

Installation of Belt Conveyor Cover Support Frame

Belt conveyor cover is applicable to power plant, cement plant, mines and other major factories which is waterproof, dust proof and windproof, it plays a great role in reducing the loss during the process of conveying goods ,making the conveyor belt more safe and reliable in operation and purifying the environment .

As the main support frame of the conveyor cover, the length of Z type steel or the connection angle iron is equal to the length of the installed conveyor cover. Please weld the Z type steel or the connection angle iron on the channel steel or the little stiffening angle iron on both sides of the belt conveyor. If need the stiffening angle iron, at first, weld the stiffening angle iron on both sides of the conveyor, then weld the Z type steel or the connection angle iron on the stiffening angle iron, detailed steps are as following:

 1) first weld the little stiffening angle iron ∟40*40*100*4(just for reference, it also can be indicated by users) every 1.5m or 2 m on both sides of the belt conveyor ( eudipleural ). The height from the intermediate frame to the top of little stiffening angle iron should ≥50mm ( it also can be decided by users).

2) Then weld the Z type steel 30*50*30*(2.0~3.0),( just for reference, it also can be replace by angle iron) and fix it on both sides of the intermediate frame top, the inner size should be 10-20mm bigger than outside size of intermediate frame.

3) After being welded please remove welding slag then paint.

Please do not hesitate to contact us if you have any inquiries about our company or products, we are ready to serve you better. 

Henan Pingyuan Mining Machinery Co., Ltd.

Address: 289 Yellow River Road, Xinxiang City, Henan Province, China. 

Tel: +86 373 579 9198

Fax: +86 373 507 1699

Email address: info@pkmachinery.com

Official Website: http://www.pkmachinery.com/