Friday, October 30, 2015

How to solve the problem of DC motor abnormal sound?

How to solve the problem of DC motor abnormal sound?

There are many kinds of DC geared motor common fault, here I will talk about it when a failure in the problem of sound, this is also one of the most common problems, why there is a different ring and how to repair? 


If there is no axial channeling dynamic collision caused by the armature, should be a structure have loose phenomenon. Everyone please remember a principle: The pole on the gasket shouldn’t be got rid of more often, this will affect the motor performance and running state, about the problem of noise here is the following method: open the electric control system of the motor power supply access oscilloscope waveform is there lack of wave head, lacks can produce vibration and noise, then check the compensation coil and armature connection, if failed it may be the magnetic circuit is too strong, electromagnetic noise, you can put the motor to at the rated speed, to see whether there is in a certain range, and then cut off the power supply. Then to see whether there are noise in the process of slowing down, if not that is electromagnetic noise can be determined, if not it should be mechanical issues. 


So, we in the future when using gear motor, ensure that every time it is in the correct operation, also we can't forget the more at ordinary times of maintenance, it is a good way to prevent or reduce the problem.


PK Machinery has been exporting belt conveyor, bucket elevator, scraper conveyor, screw conveyor, vibrating screen and other spare parts for many years. We do believe business between our customers and us can develop fast. Any enquiry, please contact us!

Wednesday, October 28, 2015

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.

Saturday, October 17, 2015

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.

motorized drum
 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)

motorized drum drawing

Monday, October 12, 2015

Lubrication of Rigid Impeller Feeder

Add sufficient 00# lithium lubricating grease to reducer of rigid impeller feeder,within 6-10 months of being put into use, the transmission and bearing parts of rotary valve should be replaced and the grease also need to be changed. If rotary valve works in a high ambient temperature, humid or too much air return, please shorten the time of changing the new grease.
During operation, please check the lubrication parts every month.
Above mentioned lubrication time is just the minimum requirements, detailed time should be flexible and depends on the operation condition.
List of Lubrication parts
No.Name of Lubrication partLubrication materialLubrication part cycleLubrication method
 1Coupling2# lubricating grease1000 hoursLubricator
 2Bearing seat3# calcium base grease1 monthLubricator
 3Gearmotor00# lithium lubricating grease6 monthsLubricator

rigid impeller feeder with round inlet

Friday, October 9, 2015

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.

Henan Pingyuan Mining Machinery Co., Ltd is the most professional manufacturer of Belt conveyorVibrating screenBucket elevatorScrew conveyorand 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
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