1. The noise becomes louder
Causes: Damaged transmission; wrong installation of rack and pinion; failure of lubrication
Corrective measures: check the gear transmission; refer to the installation steps to check; it is necessary to check whether there is any problem with the lubrication system
2. The working temperature rises
Reasons: unreasonable design; gear transmission overheating; ambient temperature too high
Corrective measures: check the design parameters; check the transmission, add cooling equipment if necessary; add enough cooling
3. Lubricating oil leakage
Cause: Too much lubricant; leakage
Corrective measures: remove excess lubricating oil, repair the frequency and dosage of lubricating; check gear transmission and lubricating system
4. Friction cracks appear on the tooth surface
Causes: poor lubrication; poor environment; wrong oil; magnetic effects
Corrective measures: correct the lubrication frequency and dosage, and it is recommended to use an automatic lubrication system; the use environment should be kept clean and dry, and the rack should not be affected by the external environment; the lubricating oil used is improper; confirm that the gear and rack are not magnetic
5. Gear breakage
Causes: overload; equipment collision; pitting on tooth surfaces; poor lubrication; poor parallelism or perpendicularity
Corrective measures: Check the design parameters; ensure that there are no foreign objects in the operating range of the equipment, the emergency stop device is normal, and operate the equipment according to regulations; ensure that there is good lubricant in the operating range; reconfirm the unknown accuracy of rack installation
6. The positioning error is too large
Reason: wrong position between gear and rack
Corrective measures: Reconfirm the unknown accuracy of rack installation
The planetary reducer is a kind of transmission part, which has a wide range of applications in industrial automation. The backlash in the planetary reducer refers to the backlash between the gear and the gear, which is generally called the return clearance, also known as the backlash. . The return clearance (or backlash, clearance) in the performance parameters of the planetary reducer, the lower the value, the higher the transmission accuracy, the more expensive the price, and the higher the transmission efficiency (the unit is arcmin, generally referred to as less than 3). High-precision type, 15 or more is low-precision type). Return clearance: fix the input end so that the output end rotates clockwise and counterclockwise. When the output end bears plus or minus 2% of the rated torque, the output end of the reducer is displaced by a slight angular displacement, which is the return clearance. Also called backlash. The unit is arc minutes, which is 1/60 of a degree.
If the requirements for the return clearance are relatively high, then I recommend that you use a precision planetary reducer or a harmonic reducer. The biggest feature of precision planetary reducer is high precision and large transmission capacity. It can be equipped with DC motor, single-phase motor, synchronous motor, etc. It is believed to be your ideal choice. It's just that the precision planetary reducer and the harmonic reducer have high price and long production cycle compared with the ordinary reducer. If there is no strict requirement for the clearance, you can choose the ordinary reducer.
Planetary reducer, as its name implies, rotates around the star, so the planetary reducer is like this. There are three planetary gears rotating around a sun gear. The main structure is composed of sun gear, planetary gear, ring gear, transmission shaft and drive motor. Number of stages: the number of sets of planetary gears. Since one set of planetary gears cannot meet the larger transmission ratio, sometimes two or three sets are needed to meet the user's requirement for larger transmission ratio. Due to the increase in the number of planetary gears, the length of the secondary or tertiary reduction stages will increase, and the efficiency will decrease. Compared with gear reducer, DC reducer, and worm gear reducer, planetary reducer has higher transmission accuracy, efficiency and longer life, and is widely used in all walks of life; planetary reducer is divided into large Power reducer, small power reducer.
How is the backlash of the planetary reducer formed? When the standard ordinary geared motor is in operation, there will be a problem of meshing between the teeth in the reducer, resulting in backlash.
The reducer is composed of gears of different sizes to achieve the effect of deceleration and distance increase. Among them, the requirements for gears are particularly important. There are always errors in gear processing, and the level of gear accuracy directly affects the quality of the entire reducer. Therefore, when designing, the accuracy level of the gear must be correctly selected.