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Synchronous belt
Category: Industry News
Release time: 2021-12-16

  Knowledge about synchronous belts,What you should collect!

  Synchronous belt,Also known as toothed belt、Timing belt、No slip zone, etc,Using steel wire rope or fiberglass as a strong layer,Circular tape covered with polyurethane or chloroprene rubber,The inner circumference of the belt is made into a toothed shape,Engage it with the toothed pulley。Synchronous beltIt is a flexible transmission form,Compared to common ordinaryVbelt、flatbeltetc.beltSimilar transmission mode。Synchronous beltDuring transmission,Accurate transmission ratio,Small axial force,Compact structure,Oil resistant,Good wear resistance,Good anti-aging performance。

  characteristic

  1、Accurate transmission,No sliding during operation,Having a constant transmission ratio;

  2、Smooth transmission,With buffering、Damping capacity,Low noise;

  3、High transmission efficiency,accessible0.98,Significant energy-saving effect;

  4、Can be used for long-distance transmission,Center distanceaccessible10mmore than;

  5、Wide speed ratio range,commonlyaccessible10,Linear velocityaccessible50m/s,Has a large power transmission range,accessibleA few watts to several hundred kilowatts;

  6、Convenient maintenance and upkeep,No lubrication required,Low maintenance costs;

  7、relative toVtypebelttransfer,Low preload,The load on the shaft and bearings is small

  Synchronous beltFailure form

  1、beltBody fatigue fracture;

  2、skinbeltInstallation tension too high or too high;

  3、beltside、beltTooth wear、Fabric stripping;

  4、Bearing layer elongation、Pitch increase、Interference in the formation of teeth、Climbing teeth;

  5、Impact、OverloadbeltBody fracture;

  6、beltCracks on the back orbeltSoftening,beltroundNoflatline;

  7、Excessive operating noise

  · Synchronous beltclassification ·

  Synchronous beltThere are two types of teeth: trapezoidal teeth and curved teeth,There are three series of arc teeth available:Circular tooth(HSeries, also known asHTDbelt)、flattopCircular tooth(SSeries, also known asbySTPDbelt)And concave parabolic teeth(Rseries)

  01

  Trapezoidal toothSynchronous belt

  Trapezoidal toothSynchronous beltThere are two types of teeth: single sided teeth and double sided teeth,for shortbySingle sidedbeltAnd double-sidedbelt。Double sidedbeltDivided according to the arrangement of teethbySymmetrical toothtype(CodeDA)And staggered tooth profile(CodeDB〕。There are two sizes available:Pitch and modulus systems。China adopts pitch system。

  02

  Arc toothSynchronous belt

  Arc toothSynchronous beltExcept for tooth shapebyCurved Outer,Its structure is similar toTrapezoidal toothSynchronous beltBasically the same,beltEquivalent pitch,Its tooth height、The tooth root thickness and tooth root fillet radius are both larger than trapezoidal teeth。beltAfter teeth are loaded,The stress distribution is good,Smooth out the stress concentration at the tooth root,Improved bearing capacity of teeth。soArc toothSynchronous beltthanTrapezoidal toothSynchronous beltHigh transmission power,And it can prevent tooth interference during the meshing process。

  Arc toothSynchronous beltGood wear resistance,Low noise during operation,No lubrication required,Can be used in harsh environments with dust。Already in Food、automobile、Textile、pharmacy、printing、Widely used in industries such as paper making。

  · Synchronous beltDamage form ·

  1、Insufficient tension:

  ifInsufficient tension,So the friction force will also be insufficient,Then there will be slipping,letSynchronous beltIncreased wear and tear,Let others lose their ability to transmit loads,Transmission instabilityletbeltTransmission loss of effectiveness。

  2、Excessive tension:

  Synchronous beltThe tension is too high,Severe deformation,Its meetingletSynchronous beltReduced service life。

  3、Synchronous beltThere are debris left on top:

  ifSynchronous beltThere is grease left on itetc.Dirt,Because the dirt contains chemicals、It can enterSynchronous belt,Destroy its material structure composition。

  4、Synchronous beltWheel not aligned:

  ifSynchronous beltFailure to align the wheels will result inSynchronous beltSlipping occurs、Distortion and internal heat and wear,thereforeSynchronous beltThe wheels must be aligned。

  5、Synchronous beltlengthNomutuallyetc.:

  ifa rowskinbeltoflengthNomutuallyetc.,EverySynchronous beltThe amount of tension that can be applied will also vary、Some may experience slipping or excessive tension,letSynchronous beltWear occurs。therefore,Be sure to choose when using ittypeSame numberSynchronous belt。

  6、Long term non operation:

  ifSynchronous beltLong time no operation,You just need to open it,Otherwise, it will decreaseSynchronous beltService life of,letSynchronous beltDeformation occurs。

  7、Rubber aging:

  ifSynchronous beltThe storage time is too long,It will cause rubber to age and reduce its lifespan。

  8、External environmental impact:

  If there is dust in the environment of the application site、Acid alkali gas or other substances can cause harmSynchronous beltGas,It will alsoletSynchronous beltService life ofShortening。

  9、Excessive vibration amplitude:

  ifDue to machine vibrationletSynchronous beltQuick twitching,This meetingletSynchronous beltSevere sun exposure occurs,Thereby reducing the service life。

  10、Starting overload:

  Synchronous beltOperating under overload conditions,Will generate too much tension,causeSynchronous beltDamage due to sliding。

  11、Synchronous beltThe groove of the wheel is worn out:

  Synchronous beltThe application time of the wheel is too long,Enhanced wear on groove edges,Incorrect angle,Synchronous beltIt will hit the bottom of the slot,bybeltMoving machines,And we must increase the tension,Causing Trianglebeltdamage。

  Frequently Asked Questions

  1、Synchronous beltTooth fracture

  2、beltAbnormal edge wear

  3、Synchronous beltSevere wear on tooth edges during use

  4、Synchronous beltDeviation

  5、Synchronous beltLongitudinal opening

  Solution

  1、NoTwistableskinbelt,Installation widthskinbeltOr largebeltround,increasebeltroundDiameter or widthskinbelt,Remove foreign objects,Correct tightening。

  2、Correct tensioning,Larger installation width、Higher power transmissionskinbelt/increaseSynchronous beltSize andbeltroundsize,inspectbelttype,Replace if necessary。

  3、replaceSynchronous beltround。

  4、Realign Axis,replacebeltroundflange,Reinforced bearings or chassis。

  5、Realign Axis,replacebeltroundflange,Reinforced bearings or chassis。

  6、replaceflangebeltround,Realignbeltround/axis,Correct tension,Remove foreign objects,Install protective cover,inspectCutting device andbeltGuiding device。