Several functions of worm gear reducer
Oct 09, 2021
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1. Worm gear reducer has self-locking function:
Worm gear reducer is a kind of transmission machinery with compact structure, large transmission ratio and self-locking function under certain conditions. It is one of the most commonly used reducers. Among them, the hollow shaft worm gear reducer not only has the above Features, easy installation, reasonable structure, and more and more widely used. The hollow shaft worm gear reducer is equipped with a helical gear reducer at the input end of the worm gear reducer. The multi-stage reducer constitutes a very low output speed. It is a combination of a helical gear stage and a worm gear stage, which is better than a pure single Grade worm gear reducer has higher efficiency. Moreover, the vibration is low, the noise is low, and the energy consumption is low.
2. The law of rotation direction of worm gear:
The rotation direction of the worm and the worm wheel is similar to the spiral transmission. The worm is equivalent to the screw and the worm wheel is equivalent to the nut. The difference is that the nut can perform linear motion, while the worm wheel can only perform rotational motion. This is a right-handed worm (right-handed is more commonly used). If it rotates in the direction of the hollow arrow (viewed from the left end of the worm axis, it rotates clockwise), when the worm cannot move axially, the "nut" of the worm wheel can only move towards Move to the left, which means that the worm gear should rotate in a clockwise direction. The judgment with the "right-hand rule" is also very simple. When the worm is a right-hand thread, the bending direction of the four fingers of the right hand represents the direction of rotation of the worm, and the direction of rotation of the worm wheel is opposite to the direction of the thumb. For the left worm, use the "Left Hand Rule".
3. Installation form of miniature worm gear reducer:
1. A variety of installation methods can be used according to actual requirements, and all six sides can be installed.
2. The installation must be firm and reliable.
3. The working mechanism of the prime mover and the reducer must be carefully aligned, and the error shall not be greater than the allowable compensation of the coupling used.
4. Rotate by hand after installation, it must be flexible and free from jamming. Replacement of lubricating oil Fourth, replace lubricating oil
1. The first use or the new replacement of the worm pair, the replacement of lubricating oil after 150-400 hours of operation, and the subsequent oil change interval is less than or equal to 4000 hours.
2. Regularly check the quantity and quality of the oil, keep enough lubricating oil, and replace the oil mixed with impurities or deteriorated in time.
3. The amount of oil injection must be in accordance with the requirements of the table. The mixing of oils of different brands is prohibited, and the oils of the same brand but different viscosities are allowed to be mixed.
4. Attached table 1 for the amount of oil, oil product according to attached table 25, the working environment temperature of the reducer is -40~+40℃. When the ambient temperature is lower than 0°C, the lubricating oil must be heated to above 0°C before starting or use lubricating oil with a low freezing point.
Five, matters needing attention:
1. Do not hammer the housing of the reducer with gravity to avoid damage.
2. Regularly check whether the installation foundation, seals, transmission shaft, etc. are normal.
3. In normal use, the maximum temperature of the lubricating oil should be less than 85°C. When the oil temperature rises abnormally and produces abnormal noise, it must be shut down immediately for inspection, and the fault can be removed before it can continue to be used.
4 The replacement of new spare parts must be used after running-in and load test.
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