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introduction：Knuckle bearings are widely used in engineering hydraulic cylinders,Forging machine,Construction machinery,Automation equipment，Shock absorbers for cars，Hydraulic machinery and other industries. Introduction and classification of knuckle bearings Knuckle bearings are spherical plain bearings，The basic type consists of an inner surface with a spherical sliding spherical contact、Outer ring composition。Depending on its structure and type，Can withstand radial load、Axial load，Or radial、Joint axial loads acting simultaneously。Because the spherical sliding contact area of the joint bearing is large，The Angle of inclination is large，At the same time, it is also because most of the joint bearings have adopted special process treatment methods，Such as surface phosphating、galvanize、Chrome plated or outer sliding surface lining、Insert packing、。Therefore, it has a large load capacity and impact resistance，And has corrosion resistance、wear-resistant、self-centering、The characteristics of good lubrication or self-lubrication
2018-03-14 Reading quantity 216
introduction：Belt type slide and screw type slide have great differences in accuracy and speed。Because of the structure，The speed transmission effect of belt type slide is better than that of screw type slide，So when we use it，When velocity or acceleration is the first consideration，Generally choose belt type slide table。
2018-03-14 Reading quantity 353
introduction：The concept of optical axis parallel refers to the parallel beam of light parallel to the optical axis of the binocular instrument after passing through the left and right systems，The degree to which two parallel beams are parallel to each other。evident，There are two different optical axis concepts involved here。One is the optical axis of whats called a binocular viewing instrument，It refers to the stacked axis of the optical system，In a coaxial spherical system, it is the line of the centers of curvature。In actual optical instruments，Because parts must have manufacturing errors and assembly errors，An optical axis in this sense does not actually exist，It is only used as a reference for correcting parts or instruments。
2018-03-13 Reading quantity 383
introduction：2、Sliding block The unground part of the upper surface of the early slider is black，The late product has a metallic color of shot peening。AThe type slider has laser etched on the upper surface of the non-abrasiveABBATypeface and guideway cross section pattern identification，BThe logo of the type slider is on the side。 Imitation text or pattern lines are thicker，Slightly fuzzy。In addition，Only one side of a genuine slider is the datum（grind），The imitation products are mostly ground on both sides。
2018-03-13 Reading quantity 498
introduction：Always observe the lubrication of bearings：To ensure that the lubrication is timely enough，It requires the user to apply the linear flange bearing，Through constant observation，Lubricate bearings in time when they are poorly lubricated。
2018-03-12 Reading quantity 373
introduction：PLCThe daily maintenance and maintenance is relatively simple，Mainly to replace fuses and lithium batteries，Basically no other vulnerable components。Due to the random access memory that stores user programs(RAM)、The counter and auxiliary relays with holding function are protected by lithium batteries，Lithium battery life is about5years，When the voltage of the lithium battery gradually decreases to a certain extent，PLCThe battery voltage on the base unit drops to the indicator light，The program supported by the lithium battery can be retained for about a week，Batteries must be replaced，This is the main content of daily maintenance。
2018-03-12 Reading quantity 208
introduction：Wanxin Motor and motor Wanxin Electric Machine（colloquially“motor”）It refers to an electromagnetic device that converts or transmits electrical energy according to the law of electromagnetic induction。The motor uses letters in the circuitM（Old standardD）expression，Its main function is to generate driving torque，As a power source for electrical appliances or various machinery，The generator uses letters in the circuitGexpression，Its main function is to convert mechanical energy into electrical energy。Maintenance for each mechanical part is to improve its life，Every part of the machinery industry needs to be maintained，The following Xiaobian will take you to understand the maintenance methods of Wanxin motor：
2018-03-12 Reading quantity 204
introduction：Bearing housing is very prone to wear，If the wear is serious，It affects the appearance and the service life，For such a bearing seat we can not normally use，As long as timely repair can continue to use，Otherwise, its a waste.。However, many people do not know much about the repair steps of the bearing seat，So we cant fix it，Lets take a look at it。
2018-03-10 Reading quantity 456
introduction：What are the more common faults of sliding bearings 1、Bearing corrosion：Spectral analysis found that the concentration of non-ferrous elements was abnormal；Many submicron wear particles of non-ferrous bronze bore bearing appear in plain bearings；Excessive lubricating oil moisture、Acid value exceeding standard。 2、Journal surface corrosion：Spectral analysis of brass bushing found abnormal iron concentration，There are many submicron particles of iron composition in plain bearings，Lubricating oil moisture exceeds the standard or acid value exceeds the standard。
2018-03-10 Reading quantity 385
introduction：People in the field of switching power supply technology are developing related power electronic devices，Development of switching frequency conversion technology，The two promote each other to promote the switching power supply with more than double digit growth rate towards light every year、small、thin、Low noise、High reliability、The direction of anti-interference development。Switching power supply can be divided intoAC/DCandDC/DCTwo broad categories，DC/DCThe converter is now modular，And the design technology and production process at home and abroad have been mature and standardized，And has been recognized by users，butAC/DCModularity of，Because of its own characteristics make in the modular process，Encountered more complex technical and process manufacturing problems。The structure and characteristics of the two types of switching power supplies are described below。
2018-03-09 Reading quantity 263
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