| Worm Reducer Frequently Asked Questions |
Worm gear reducer is a compact structure, transmission ratio, and under certain conditions, a self-locking function of the transmission machinery, is one of the most commonly used gear, which, hollow shaft worm gear reducer is not only more features, and ease of installation, reasonable structure, more and more widely used. Hollow shaft worm gear reducer worm gear reducer in the input-side installation of a helical gear reducer, reducer consisting of multi-level access to a very low output speed, is the helical gear and worm gear grade level combination, than the pure single-stage worm gear is more efficient. And vibration, low noise, low energy consumption.
Common problems and their causes. 1) fever reducer and oil spills, (2) Worm wear, (3) transmission of small helical gear wear, (4) Bearings (Worm Office) damage.
A fever reducer and oil spills. In order to improve the efficiency of worm gear reducer, worm generally done by non-ferrous metals, steel worm is using the harder, because it is sliding friction drive, during operation, will produce a higher heat, so that all parts and seals reducer differ between the thermal expansion, resulting in the production gap with the surface, while the oil temperature increases as thinning, easily lead to leaks. Four main reasons, first, whether it is reasonable mix of material, and second, the quality of engagement of surface friction, third is the choice of oil, add the amount is correct, 4 is the assembly quality and use of the environment.
2 worm gear wear. General use of bronze worm gear, worm materials generally matching the 45 steel hardened to HRC45 a 55, also commonly used in 40C: a 55 hardened HRC50 by worm grinding machine to the roughness RaO. 8 fcm, gear normal operation, worm as a hardened the "FILE", constantly cutting worm file, so that worm blemishes. In general, this wear is very slow, like a factory some gear you can use more than 10 years. If you wear faster, we must consider whether the correct gear selection, is there overload running worm materials, assembly quality, or use of the environment and other reasons.
3 small helical gear transmission wear. Generally occurs in the vertical gear installed, the main with the addition of lubricating oil and lubricating oil on the selection. Vertical installation can easily lead to lack of lubricant oil, to stop running when the reducer, motor and gear reducer between oil loss, lack of proper gear lubrication protection during start or operation is not effectively lubrication led to mechanical wear or damage.
4 worm bearing damage. Gear failure, even if the gear box seal good, the plant is often found within the gear reducer oil has been emulsified, bearings rust, corrosion, damage, because the deceleration stop process machine in operation, gear oil from the After the heat generated by cooling caused by water condensation; of course, and bearing quality, assembly process were closely related.
Solution:
(1) to ensure assembly quality. In order to ensure assembly quality, the plant purchased and made a number of special tools, demolition and installation of worm gear reducer, worm, bearings, gears and other components, try to avoid using a hammer and other tools to direct percussion; replacement gears, worm gear, try to use original replacement parts and pairs; assembly output shaft, we should pay attention to tolerance with, D ≤ 50mm, with H7 / k6, D> 50mm, by H7/m6, while using anti-oil viscosity or red lead, protect hollow shaft to prevent rust and wear, with the area to prevent fouling, maintenance difficult demolition.
(2) the selection of lubricants and additives. Worm gear reducer 220 # gear oil is generally used for some heavy load, start frequently, using a less favorable gear, the factory also use some lubricant additives (such as safety and good governance can be chemical companies), reducer stopping running, gear oil is still attached to the gear surface to form a protective film to prevent the heavy duty, low speed, high torque and start time of contact between metal and metal. Additive also contains anti-leak seal regulators and agents, to remain soft and flexible seal, reduce oil leakage.
(3) reducer installation location options. Location permitting, try not to use vertical installation. Vertical installation, add the amount of lubricant to install than the level a lot more likely to cause fever reducer and oil spills. Plant imported 40,000 bottles / 'when the draft beer lines, some with vertical installation, run over a period of time, the drive pinion has a greater wear and tear, or damage, after adjustment, the situation has much improved .
(4) to establish the appropriate lubrication maintenance system. Plant under the lubrication "Five set" principle, maintenance of the reducer, so that each gear has a regular inspection of your submissive, when the work was found significantly higher oil temperature, temperature or oil temperature exceeding 40 ℃ below 80 ℃, lower quality oil found in oil or copper, and produce more noise and other abnormal phenomena, we should immediately stop using the timely maintenance, troubleshooting, replacement of oil before use. Come on, pay attention to oil and the installation location to be consistent to ensure correct lubrication of gear.
In short, hollow shaft worm reducer easy installation, reasonable structure, reliable and durable. Of course, we should also pay attention to choose the brand reducer, powerful companies will shape according to the gear unit, cooling tendon layout, heat balance calculations, circuit design and other design features, combined with the actual use of reducer and operating conditions, with good manufacturing process to produce high quality, reliable and durable gear. User as long as the proper use of maintenance, you can get satisfactory results |
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