Why does the reducer specify the highest and lowest positions of the lubricating oil level?

The movement of the gear is indispensable for the lubrication of the gear oil, but too much gear oil will cause poor heat dissipation in the gearbox, which will easily lead to a temperature increase and aggravate the wear of the gear, and too much gear oil will also cause high energy consumption;

If the gear oil is added too little, it will cause insufficient lubrication, which will also lead to wear and tear of the gear. Therefore, it is necessary to limit the highest position and the lowest position of the lubricating oil surface. The design of the gearbox is generally determined according to the size and load of the gear set.

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Reason: Because too much lubricating oil will cause poor heat dissipation in the gearbox, it is easy to lead to temperature rise and aggravate the wear of gears, and too much gear oil will also cause large energy consumption; If the lubricating oil is added too little, it will cause insufficient lubrication, which will also lead to wear of the gears. Therefore, it is necessary to limit the highest position and the lowest position of the lubricating oil surface.

Before commissioning, the gear unit is loaded with the recommended type and value of grease. For vertically mounted gearboxes, an additional lubrication measure is used, as the lubricating oil may not guarantee reliable lubrication of the top bearing. Before operation, the appropriate amount of lubricating oil is injected into the reducer, and the viscosity of the lubricating oil is selected according to the following list.

Reducers are usually equipped with oil injection holes and oil drain plugs. Therefore, when ordering a gear unit, the installation location must be specified.

If the liquid level is too high, there is too much oil, one is waste, and the other is that the heat is not easy to lose.

If the liquid level is too low, there is too little oil, which is easy to cause poor lubrication.

Hope it helps you hope thank you.

In order to avoid stirring up the dirt deposited at the bottom of the oil pool when the transmission rotates, the distance between the top of the tooth of the big gear and the bottom surface of the oil pool should be greater than 30mm, and it is generally set at 30 50mm.

The oil immersion depth of the big gear in the oil pool is one tooth height, but should not be less than 10mm. The oil level thus determined can be used as the minimum oil level. Take into account factors such as the continuous evaporation, loss and agitation loss of oil in use.

The highest oil level should also be determined, and the highest oil level is generally not greater than 1 3 of the radius of the transmission part (the highest oil level of the small and medium-sized dust reduction rubber speed changer is 5 10mm higher than the lowest oil level). When the linear velocity of the outer edge of the rotating part is greater than 12m s, oil injection lubrication should be considered.

At least above the gear shaft, not below the gear shaft.

The oil window shall prevail, and the general situation is about 1 2.

In winter, the temperature is lower, because the temperature level will increase as the temperature rises.

If there is less oil, it will not play a lubricating role, and if there is too much oil, it will easily overflow.

In view of the leakage problem, the traditional method requires disassembling and opening the reducer, replacing the sealing gasket or applying sealant, which is not only time-consuming and laborious, but also difficult to ensure the sealing effect, and leakage will occur again during operation.

Polymer materials can be treated for leakage on site, and the material has superior adhesion, oil resistance and 350% elongation, which overcomes the impact of reducer vibration and solves the problem of reducer leakage for enterprises.

If there is less oil, it will not play a lubricating role, and if there is too much oil, it will easily overflow. The distance you said should be a larger space, and it is also set according to lubrication.

Geared motor grease is a waterproof sealing grease refined by thickening modified silicone oil with a highly adhesive inorganic thickener and adding a variety of additives and structural improvers such as anti-oxidation and anti-corrosion. With excellent water resistance and excellent corrosion resistance, this adhesive waterproof grease meets the requirements of food safety in contact with drinking water, and is designed for the sealing and lubrication of pressure valves and drinking water valves, and can also be used for the lubrication and sealing of friction parts of metal plastics, plastic plastics, ceramics ceramics and ceramics plastics.

It is used in high temperature or low temperature environment, and requires good sealing and lubrication of water-resistant ceramic friction surface, copper shaft, gear, etc., and can be used for a long time in the range of -40 200 and the water pressure is less than 10kg cm2.

It is suitable for the lubrication and sealing of valves in sanitary equipment, brewing equipment, beverage equipment and drinking water equipment faucets (ceramic water valves and plug valves).

This adhesive waterproof grease meets the requirements of food safety in contact with drinking water and is designed for the sealing and lubrication of pressure valves, drinking water valves, as well as for the lubrication and sealing of friction parts of metal plastics, plastic plastics, ceramic ceramics, and ceramic plastics.

Reducer grease is made of inorganic thickener thickened high viscosity index synthetic oil, and added with extreme pressure anti-wear, anti-rust, anti-oxidation and other additives, refined by special process of high-temperature gear grease, the grease has strong viscosity, can overcome high-speed centrifugal force, specially developed to meet the lubrication and noise reduction of small motor gears under high temperature and high-speed working conditions, with excellent high temperature, wear resistance and sound reduction. Applicable temperature range: -40 +220 .

It has excellent high temperature resistance, and is not easy to soften, lose and dry at high temperatures; Excellent high-speed resistance, extreme pressure, anti-wear performance, strong bearing capacity; Excellent adhesion and oil film lubricity, vibration damping and noise reduction effect is remarkable; Excellent oxidation resistance, good compatibility with most plastics and seals.

It is suitable for lubrication and noise reduction of high-temperature and high-speed leak-proof gears, small geared motors, plastic metal gears and turbine worms; It is used for the lubrication of cylinder pistons and gears of electric tools such as electric hammers, electric drills, cutting machines, angle grinders, electric scissor mowers, etc., and can be used for long-term lubrication of synchronous motor gears of high-temperature ovens.

Common names: power tool gear grease, high-speed gear grease, high temperature high-speed gear grease, high viscosity gear grease, gear adhesion grease, electric hammer grease, impact drill grease, metal gear grease, window roller gear grease, electric drill grease, electric hammer cylinder grease, power tool grease, high-speed power tool grease, electric hammer grease, electric drill grease, noise reduction and anti-wear grease, high-speed gear grease, high-speed motor grease, long-life gear grease, worm gear special grease, Worm gear grease, power tool gear oil, high temperature anti-wear grease, noise reduction anti-wear grease, shovel gear grease, cylinder grease, high-speed tool grease, high-speed gear adhesion grease, gear reducer motor grease.

The main consideration is lubricity, fluidity and extreme pressure wear resistance, and it is recommended to choose 00 extreme pressure semi-fluid grease. Choose the right product according to the working temperature, generally -20 120 is enough.

The selection of reducer grease should be selected according to the working conditions, such as temperature, speed, load and noise reduction requirements, and several commonly used types are introduced

The first type, high-temperature grease, generally used at a temperature of more than 200 degrees, the commonly used models are: fully synthetic high-temperature bearing grease of Tiger Head Hotolube, the use temperature is -50 +250, Klube's NB52 and Total's DF202.

The second category, high-load grease, the commonly used models are: fully synthetic molybdenum disulfide high temperature grease of Tiger Head Hotolube, operating temperature -50 +250, NB52 from Kruber and DF202 from Total. The third category, low-temperature grease, used in low-temperature environment, commonly used models:

Tiger Head Hotolube's fully synthetic cryogenic aviation grease, service temperature -60 +180, Kruber's 2 dl and Great Wall's 7007, etc.

The selection of reducer grease should be determined according to the working temperature, load, speed, shear strength and other working conditions

1) Excellent anti-wear and extreme pressure performance, which can withstand large loads or high impact loads;

2) Excellent high and low temperature performance, excellent thermal oxidation stability and low temperature start-up;

3) Good water resistance and leakage prevention and noise reduction ability, effectively prevent grease leakage;

4) Excellent mechanical stability and colloidal stability, long service life.

The gear reducer adopts the following lubrication methods:

1.Pressure lubrication method: add an oil pump to the engine, and use the pressure of the oil pump to force the oil to each lubrication point.

Pressure lubrication belongs to forced lubrication, which relies on the oil pump to deliver the lubricating oil to the friction pair at a certain pressure. The oil pressure is less than 100 kilograms of square centimeters, the lubricating oil is not required to be large and the friction pair that supports a considerable load is lubricated by using a plunger oil pump, and the plunger pump is installed in the casing, and the oil supply is realized by its reciprocating motion.

2.Splash lubrication method: Splash lubrication is based on the rotation speed of the rotary parts sealed in the chassis when the rotation speed is large (5m s

Generally, there are many ways to splash.

The horizontal cycloid hard tooth surface reducer of the machine is smooth in the oil pool under normal circumstances, and the oil surface height can be raised in the middle of the oil window.

In order to improve the function of the hard tooth reducer and extend the service life of the cycloidal pinwheel hard tooth surface reducer, it is recommended to use 70 or 90 extreme pressure gear oil.