Worm Gear is a power transmission mechanism , the use of gear speed converter, the motor ( motor ) of the number of revolutions slow down to the desired rotational speed, torque and get a larger organization . In currently used for power transmission and motion mechanism, reducer wide range of applications .
Use and Maintenance
1.Do not install the gear output components , pressure tank , when you meet the mechanical coupling and reducer concentricity between the corresponding requirements and verticality .
2.The initial gear to 400 hours should be re- run oil change , oil change intervals thereafter about 4000 hours.
3.Gear box body should retain sufficient amount of lubricant , and regularly checked.
4.To keep the gear clean appearance , timely removal of dust, dirt facilitate cooling.
Common problems and their causes.
1.Fever reducer and oil spills,
2.Worm gear wear,
3.The transmission of small helical gear wear,
4.Bearings ( worm at ) damage.
Fever and oil spills
In order to improve the efficiency of worm reducer , worm gear are generally used to make non-ferrous metals , the use of hard steel to do the worm , as it is sliding friction drive, during operation , it will have a higher heat , so that the parts and seals reducer the difference between the thermal expansion , resulting in a gap with the surface , and the fluid temperature as thinning , likely to cause leakage. There are four main reasons , first, whether a reasonable mix of materials , and second friction engagement surface quality , three is the lubricant of choice , add the amount is correct, four assembly quality and the environment.
Worm generally use tin bronze , worm materials are generally paired with 45 steel hardened to HRC45 -55 , is also commonly used 40C: hardened HRC50 -55 , the worm grinder grinding to finish RaO. 8 fcm, reducer normal operation, the worm is like a hardened " rasp " , kept cutting and filing worm , the worm wheel blemishes. In general, this wear is slow , like the factory gear unit can be used some more than 10 years . If you wear faster , we must consider the gearhead selection is correct, whether there is overload operation , worm material, assembly quality or environmental reasons .
Helical gear wear
Generally occurs in the vertical installation of the gear unit , mainly with the added amount of lubricant and lubricant selection. Vertical installation , it is less likely to cause lubricating oil , gear when stopped, the motor and gear reducer between the oil drain, lack of proper lubrication protection gear , start or operation process is not effectively lubrication cause mechanical wear or damage.
Bearing damage
Gear failure, even if well sealed gear box , the plant is often found inside the gear reducer oil has been emulsified , bearings are rust, corrosion , damage , this is because the process stopped in transit gear , the gear oil from the after the thermal cooling cause condensation water produced ; course , and also bearing quality , the assembly process methods are closely related.
Workaround
1.Ensure the quality of assembly . Some can be purchased or homemade special tools, gear parts removal and installation , try to avoid tapping with a hammer and other tools ; replacement gears , worm , try to use original parts and replaced in pairs ; assembly output shaft , pay attention tolerances ; want to use anti-adhesive or Hongdan oil to protect the hollow shaft , with the area to prevent rust or wear debris, repair difficult removal.
2.Selection of lubricants and additives . Worm gear reducer 220 # gear oil is generally used for heavy-duty , frequent starting , poor use of the environment reducer, can use some lubricant additives, gear oil stopped running gear is still attached to the gear surface to form a protective film to prevent heavy load , low speed, high torque and starts direct contact between the metal . Additives containing modifiers and anti- leak seal agent, the seals remain soft and flexible , reduce oil leakage .
3.Gearhead choice of installation location . Location permitting , try not to use vertical installation . Vertical installation, the amount of oil added a lot more than the horizontally mounted , easy to cause fever reducer and oil spills .
4.Establish lubrication maintenance system . According to the lubrication " Five of" principles reducer for maintenance , so that each person has a responsibility gear regularly checked and found that the temperature rise significantly , over 40 ℃ or oil temperature exceeds 80 ℃, decline in the quality of oil or oil found more copper and produce abnormal noise and other phenomena , they should immediately stop using , timely maintenance , troubleshooting, replacement of oil . Come on , pay attention to fuel, to ensure correct lubrication of gear .
Chinabase Machinery is a group of manufacturing facilities, offering one-stop solution for mechanical
power transmissions products in China. We can supply a full-range of
power transmission products, such as chains,engineering chain, sprockets and plate wheels, pulleys, gearboxes, motors, couplings,
sleeve coupling, gears and racks. Our product range also covers locking assemblies (clamping elements/locking device), taper bushes, QD bushes,
helical gear, bolt-on hubs, torque limiters, shaft collars, motor bases and motor slides, chain detachers, chain guides, universal joint, rod ends and yokes. Our products are used in many different industry sector, like in automation engineering, drive engineering, conveyor technology, assembly and handling technology, packaging industries, the beverage, food and medical engineering, pharmaceutical production, and laboratory equipment.
