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  •       What are the factors affecting gear life?



      1.Number of gear teeth: too many teeth are not conducive to gear processing, If it have too few teeth, gear teeth meshing times will increase,so it will reduce gear life.
      2.Gear width coefficient: gear width coefficient determines the size of tooth width, and increasing tooth width can improve the bearing capacity, but the larger the tooth width, the more uneven the load distribution along the tooth width. Therefore, a suitable tooth width coefficient should be selected.
      3.Pressure angle: the general standard pressure angle is 20 degrees.If increase the pressure angle.,the bending strength and contact strength of gear will be increased.
      4.Module: for general drive module > 2mm.
      5.Material of gear:
        A.Gear surface should have sufficient hardness and wear resistance to avoid pitting, gluing and plastic deformation as far as possible.
        B.The core of the gear should be of sufficient strength and toughness to withstand the breaking of the gear heel and the impact load.
        C.There should be good processing and heat treatment properties to make it easy to process and improve its mechanical properties.
  •       About processing procedures about custom products
      About processing procedures about custom products
      Design product as customer requirements→analyse mold flow →verify Prototype→injection molding→test production→produce product→assembly products→package product→transport,Every manufacturing process have passed strict quality inspection and control in to guarantee our product quality.
      ZHAOWEI provides you with a one-stop mini transmission system customized production and assembly services.
  •       Please tell me more information about the range of parameters.
      I’m glad to help you,We can custom micro planetary gearboxes as requirements,there a range of parameter as follows.
      Outer diameter:3.4mm-38mm
      Voltage:3V-24V
      Power:0.01W-50W
      Output speed:5rpm-1500rpm
      Ratio:2-2000
      Output torque:1gf.cm-50kgf.cm
      Noise: 45DB
      Types of motor:DC motor,stepping motor
      Gear materials:metal,plastic
      If you still have any questions,you can contact our online sales manager.
  •       I haven’t found a suitable gearbox, what should i do?
      Don’t worry, we can custom micro gearboxes as your requirements. You just needs to supply product parameters you need to us,such as voltage,speed,current and out diameter,then our engineer will talk with you about more details. If you still have any questions, you can contact our sales manager.

  •       What ZHAOWEI offers?


      We offer micro gearboxes, gear reducers,small reduction motors. If you haven’t find  products you needs,you can consult with our online sales manger.
  •       Common troubles and reasons of micro gear reducer


      As we know,The longer the working time, the more serious the wear of the internal transmission device, and then a variety of troubles appear.The next content are some troubles about micro gear reducers and their reasons.

      1.Abnormal heating of micro gear reducer
      Abnormal heating of the reducer means that the bearing or shell parts of the reducer have a serious heat, which exceeds the normal temperature range. The bearing is heated,which is seen commonly.
      Possible reasons:
      Overloaded operation of reducer;improper assembly of bearings,gears, shafts;bearing wear and so on;short time start and stop too much;too high or too low voltage;poor lubrication,etc.

      2.Abnormal vibration and sound of micro gear reducer
      The meaning is that vibration and sound of micro gear reducer apparently increase and beyond the normal allowable range,or vibration and sound of gear reducer are abnormal.
      Possible reasons:
      Gear and shaft damage;gear meshing part has foreign matter stuck;gear meshing has matter;micro gear reducer and motor coaxiality error is large;fixed not firm;bolt loose;lubricating oil is not clean and impurity,etc.

      3.Oil leak
      Mainly the position of the bearing end cover of the speed reducer , the sealing surface or the combination surface of the casing and other parts have lubricating oil leakage .
      Possible reasons:
      Poor sealing, box deformation, shell damage and so on;it may also be in the gear transmission,friction heat,resulting in oil temperature rise,oil thinning and easy to leak.

  •       How to calculate transmission ratio?


      1. i=n1/n2=D2/D1 ,i=n1/n2=z2/z1.
      i represents transmission ratio or gear ratio
      n1 represents the speed of drive gear
      n2 represents the speed of driven gear
      D2 represents the diameter of driven gear
      D1 represents the diameter of driving gear
      Z2 represents the tooth number of driven gear
      Z1 represents the tooth number of driving gear

      2.Multistage gear transmission : the transmission ratio between each two shafts is calculated according to the above formula 2: the total transmission ratio from the first axis to the n-axis is calculated according to the following formula: total transmission ratio = (Z2/Z1)×(Z4/Z3)×(Z6/Z5) = (n1/n2)×(n3/n4)×(n5/n6).


  •       What is ZHAOWEI mission?

      Our mission is to provide the innovative, advanced and first-class products for our customers.

  •       How to deal with some common troubles of gear reducer?
       
      How to deal with some common troubles of gear reducer?

      We talked about common troubles and reasons of gear reducer the day before yesterday ,I will talk how to deal with these troubles in detail now.
      1.The oil leak trouble
      (1)Ensure coaxiality when installing and debugging, replace skeleton oil seal for wear oil seal.
      (2)Replace gasket.
      (3)Binding bolt.
      (4)Run out of lubricating oil and replace better lubricating oil and seal after gasoline is cleaned by gasoline.

      2.The trouble of abnormal heating of gear reducer
      (1)Measure no load and load voltage.
      (2)Check micro gear reducer fan and clean vent, strengthen ventilation and reduce ring temperature.
      (3)Use the clamp ammeter to check the current of each phase and deal with the trouble.
      (4)Reduce the number of times of forward and reverse rotation of the spur gear reducer or replace the micro gear reducer suitable for frequent starting and reverse rotation.

      3. The trouble of abnormal vibration problem
      (1)Adjust and replace shafts, bearings and gears.
      (2)Adjust chain tightness.
      (3)Disassembly inspection and replacement.
      (4)Fastening bolt increases lubricating oil.
      (5)Replacement of lubricating oil.
      (6)Remove the foreign body and clean the reducer box.
      However,you'd better do enough to avoid some common troubles of gear reducer. First, you need to choose reliable gear reducer manufacturer.Second,choose the right product. Second, the need for installation and debugging.Third,periodic maintenance, so as to reduce product failures and prolong life of gear reducer.

      Shenzhen ZHAOWEI Machinery & Electronics Co., Ltd was established in April 1997 which is State High-Tech enterprise for gear transmission design and manufacture. It provides the total drive solution for customers from design, tooling fabrication, components manufacturing and assembly. For more details,you can contact our online sales manager.

       
  •       Do you know the features of gear motor?
      Do you know the features of gear motor?

      In terms of the features of gear motor, there are several good features of gear motor which can be utilized.

      1.Small volume, good-looking, high loading capability
      2.Wide range, different levels of transmission ratio
      3.Low noise, low consumption
      4.Universality, which means it is cheap and convenient to maintain
      5.Great quality to work under terrible condition( 80 degree or -10 degree)
      6.It can be matched with many other motors like DC motor, AC motor, variable frequency motor and so on.
      Zhaowei company has specialized in micro motor and gear motor for more than 20 years, aimed to provide customer with a better service.Shenzhen ZHAOWEI Machinery & Electronics Co., Ltd was established in April 1997 which is State High-Tech enterprise for gear transmission design and manufacturing. It provides the total drive solution for customers from design, tooling fabrication, components manufacturing and assembly.
  •       What is The Distinguishing Feature of Coaxial Gear Reduction Motor?
      What is The Distinguishing Feature of Coaxial Gear Reduction Motor?

      The radial size compact, but the axial size is bigger.Due to large intermediate shaft, shaft at the time of loading of the one song is bigger, so along the tooth width of load concentration phenomenon more serious.At the same time as the center of the two stage gear must be consistent, so tell level gear bearing capacity is difficult to make full use of, and, in the middle part of the bearing lubrication slowdown is more difficult.Deceleration of the motor at both ends of the input and output terminal is located in the same axis, bring the overall configuration of gearing.
  •       Common troubles and reasons of gear reducer
      Common troubles and reasons of gear reducer

      As we know,The longer the working time, the more serious the wear of the internal transmission device, and then a variety of troubles appear.Today i will talk some troubles about gear reducer and their reasons.

      1.Abnormal vibration and sound of gear reducer
      The meaning is that vibration and sound of gear reducer apparently increase and beyond the normal allowable range,or vibration and sound of gear reducer are abnormal.
      Possible reasons:
      Gear and shaft damage;gear meshing part has foreign matter stuck;gear meshing has matter;gear reducer and motor coaxiality error is large;fixed not firm;bolt loose;lubricating oil is not clean and impurity,etc.

      2.Abnormal heating of gear reducer
      Abnormal heating of the reducer means that the bearing or shell parts of the reducer have a serious heat, which exceeds the normal temperature range. The bearing is heated,which is seen commonly.
      Possible reasons:
      Overloaded operation of reducer;improper assembly of bearings,gears, shafts;bearing wear and so on;short time start and stop too much;too high or too low voltage;poor lubrication,etc.

      3.Oil leak
      Mainly the position of the bearing end cover of the speed reducer , the sealing surface or the combination surface of the casing and other parts have lubricating oil leakage .
      Possible reasons:
      poor sealing, box deformation, shell damage and so on;it may also be in the gear transmission,friction heat,resulting in oil temperature rise,oil thinning and easy to leak.

      How to deal with these matters?Please wait for us to update tomorrow.If you have any question,please contact our sales manager.
      Shenzhen ZHAOWEI Machinery &Electronics Co.,Ltd was established in April 1997 which is State High-Tech enterprise for gear transmission design and manufacturing.It provide the total drive solution for customers from design,tooling fabrication,components manufacturing and assembly.I believe it can meet your needs.

  •       ZHAOWEI Planetary Gear Box
      ZHAOWEI Planetary Gear Box
      Gear is transfer movement and power of machinery, has a long history, gear transmission and has a large range of speed ratio and large power, high reliability, accurate transmission ratio, the advantages of long service life, is an essential part of most mechanical equipment transmission parts.

      Everyday gear box according to the structural form can be divided into seven categories: involute cylindrical gear box, cycloidal needle wheel fixed axis gear box, arc cylindrical gear transmission gear box, bevel gear drive and hypoid gear transmission, worm drive.Involute planetary gear transmission, the non-circular gear transmission, etc.Different forms of gear structure in transmission ratio, transmission.Work speed, lubrication requirements, reliability, cost efficiency, etc have different advantages and disadvantages, so want to choose suitable for real gear box the desires of their products, to seriously consider the requirements of the following several aspects:

      1. Gear case of machine work on the structure and the requirement of dynamic parameters, such as actuator size, quality, power, speed, efficiency and transmission ratio, load characteristic, etc.
      2. The performance of the gear case of machine work for requirements: such as reliability, service life, noise, vibration, temperature rise and transmission precision, etc.
      3. Gear box, technology advanced, reasonable, economical, general interchangeability.
      4. The gear products of low cost, high efficiency, high precision, high reliability and other factors.
      Many factors influence of gear damage, such as material selection, processing technology, so that to install such errors could lead to the failure of the gear.In gear work injury is divided into five categories: the basic form of tooth surface wear, fatigue, glue, plastic deformation and broken gear, etc.

      Gear wear refers to the gears in the gearbox in the process of meshing gear surface material constant process of friction and consumption.According to the damage mechanism of the wear can be divided into the adhesive wear, abrasive wear and surface fatigue wear, corrosion, wear, etc.And by the depth of the gear abrasion wear can be divided into mild, moderate wear, excessive wear.Two meshing gear tooth surface metal, agglutination abrasion is direct contact with the under certain pressure, and relative motion after welded, the metal from the tooth surface tear falls, or from one tooth to another tooth surface transfer phenomenon and cause of damage.Gear meshing is actually a relatively rolling, and the relative sliding process.The function of these two kinds of force pulse cycle change gear surface layer depths of shear stress.Tooth surface under the action of the shear stress, cause local damage metal flake.The damage forms and pitting fatigue spalling, shallow fatigue spalling fatigue spalling and hardening layer 3 kinds.
  •       How to determine the model of a reduction motor
      How to determine the model of a reduction motor?

      Step 1.Determine the operating speed of the machine and calculate the reduction ratio of the gear reduction motor based on this speed (reduction ratio = entry axis speed / output axis velocity = motor speed / mechanical speed)

      Step 2.Calculate the torque of the load, select the force of the gear reducer based on this torque and determine the model of the gear reducer.If you don’t know,you can contact our  online sales manager.

      Step 3.Determine additional features of the reduction motor, such as power off brake, power on brake, frequency conversion, shrunk frame, shell material, etc. Some additional functions are available only in specific factories, so when you want to choose motors,you should communicate with supplier well.

      It’s very important to choose a suitable motor for your machine,you should consider all kind of parameter,such as voltage,speed.current,and should distinguish different situations,such as no load and at rated load.If you have any questions,you can contact our online engineer or sales manager,we are glad to help you,for more details,you can contact our online sales manager.

  •       Advantages of Planetary reduction motor
      Advantages of Planetary reduction motor
      Compared with cylindrical reduction motor, planetary reduction has many unique advantages. Its most remarkable feature is that it can split the power while transmitting the power, and the input axis and the output axis have coaxiality, that is, the output axis and the input axis are set on the same main axis. Therefore, planetary reduction motor transmission has been used to replace the ordinary gear drive, and as a kind of mechanical transmission in the accelerator and transmission device.The main characteristics of the planetary reduction motor are as follows.

        1.Smooth motion, strong ability to resist shock and vibration. Because several planetary gears of the same structure are used to distribute evenly around the center wheel,so the force between the planetary wheel and the rotating arm can be balanced.So the movement of planetary gear transmission is stable.

        2.Transmission is relatively large, can achieve motion synthesis and decomposition. As long as the type of planetary gear transmission and the gear matching scheme are properly selected, a large transmission ratio can be obtained with a few gears. In the planetary reduction motor transmission, the transmission ratio can reach several thousand.

        3.Planetary reduction motor is small in size, small in mass, compact in structure and large in bearing capacity. Because the planetary gear transmission has the power shunt, the coaxial transmission of each center wheel and the reasonable application of the internal meshing gear pair, the structure of the planetary gear transmission can be very compact. Moreover, several planetary gears are distributed evenly around the center wheel to share the load, which makes the load of each gear less, and allows these gears to adopt smaller modulus. In addition the coaxial reducer makes full use of the large bearing capacity of the inner meshing and the volume of the inner gear ring itself in order to reduce the outer dimension of the gear reducer. General, planetary gear drive the size and mass of the outer profile is about 1/2/5 of the normal gear drive (under the same load).

        4.Planetary reduction motor drive efficiency is high. Because of the symmetry of the planetary gear transmission structure, that is, it has several symmetrical planetary gears, the reaction force acting on the center wheel and the rotating arm bearing can balance each other, which is helpful to improve the transmission efficiency. When the transmission type is chosen properly and the structure is arranged reasonably, its efficiency value can reach 0.97 ~ 0.99.

        ZHAOWEI produces planetary gear reducer,reduction motor with 21 experience.It deserves your trust!if you have any questions,you can contact our online sales manager.

Contact us

Shenzhen ZhaoWei Machinery & Electronics Co. Ltd. Add: Zhaowei Industry Park, Middle Chaoyang Road, Yanchuan Street, Songgang Town, Bao'an District, Shenzhen, 518105, Guangdong, China

Tel: +86-755-27322645
Fax: +86-755-27323949
Email:sales@zwgearbox.com

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