What lubrication method should be used for ZDY200-4.5-1 hard tooth gear reducer

1、 Normal working condition: oil bath splash lubrication

This is the standard lubrication method that comes standard with this model at the factory, suitable for the vast majority of industrial scenarios:

1. Oil bath splash lubrication adaptation conditions: gear circumferential speed ≤ 12m/s, continuous operating load not exceeding 80% of rated power, ambient temperature -10~40 ℃, no frequent impact overload.

2. Key points for oil bath splash lubrication operation: The depth of immersion of the large gear into the oil pool should be controlled at 1-2 times the full tooth height, with a minimum of 10mm. The oil should be thrown to the meshing area of the tooth surface and the bearing area through gear rotation. The oil level can be directly observed through the sight glass on both ends of the box, and the oil level should be kept at the line position in the sight glass.

3. Oil bath splash lubrication matching oil: L-CKD 220 # extreme pressure industrial gear oil is selected for conventional working conditions, and can be upgraded to L-CKD 320 # extreme pressure gear oil when the ambient temperature exceeds 35 ℃ for a long time.

4. Advantages of oil bath splash lubrication: No additional oil pump pipeline system is required, the structure is simple and easy to maintain, and it can stably form an elastic fluid dynamic pressure oil film, meeting the lubrication needs of this model under conventional working conditions. The transmission efficiency is stably maintained at over 97%.

2、 Special working condition: forced oil injection lubrication

When any of the following situations occur, it must be upgraded to forced fuel injection lubrication:

1. Adaptation conditions: The circumferential speed of the gear is greater than 12m/s, it operates at full load for a long time, the ambient temperature is higher than 45 ℃ for a long time, or the continuous operating thermal power exceeds the allowable thermal power of the model. Oil bath lubrication cannot control the oil temperature within 85 ℃.

2. Operation points: Install a lubricating oil pump with a pressure of 0.05~0.3MPa, evenly arrange nozzles along the gear tooth width direction, and directly spray lubricating oil into the gear meshing area. The circulating oil volume should be configured according to the standard of ≥ 0.5L/kW, and equipped with oil filtration and cooling devices.

3. Advantages: Significantly improving heat dissipation efficiency, timely removing frictional heat from tooth surfaces and bearings, while continuously flushing metal debris in the meshing area to avoid abrasive wear, allowing the model to maintain a stable oil film under heavy load and high-speed conditions, and extending the service life of gears and bearings by more than twice.

3、 Special cases where only the bearing parts are lubricated with grease

The use of grease lubrication is strictly prohibited for the gear pair of this model. Only in special scenarios such as low-speed light load, frequent start stop, and continuous operation for less than 2 hours per day, can grease lubrication be added to the supporting bearings at both ends:

1. Select No.2 extreme pressure lithium based grease, with the filling amount controlled at 1/3~1/2 of the bearing chamber volume, to avoid excessive filling and excessive temperature rise during bearing operation.

2. The gear pair still needs to maintain a minimum level of oil bath lubrication, with the oil level at least 10mm submerged in the large gear to prevent dry friction and wear on the tooth surface.