
Introduce the relevant content of industrial gears, including design parameters, material selection, etc.:
Design Parameters
Modulus: Modulus is an important parameter that determines the size and load-bearing capacity of gears, reflecting the size of gear teeth.
. The larger the modulus, the larger the teeth of the gear, and the higher the load-bearing capacity. When designing industrial gears, it is necessary to choose the appropriate module based on factors such as transmitted power, speed, and load properties Number of teeth: The number of teeth directly affects the transmission ratio and speed of the gear. By changing the gear ratio of the meshing gears, different transmission ratios can be achieved to meet the motion requirements of different industrial equipment. At the same time, the selection of the number of teeth will also affect the meshing degree of the gears, thereby affecting the smoothness of the transmission Pressure angle: Pressure angle refers to the angle between the force direction at a certain point on the gear tooth profile and the velocity direction at that point. The standard pressure angle is generally 20 °, and in some special cases, other pressure angles such as 14.5 °, 25 °, etc. may also be used. The magnitude of the pressure angle will affect the tooth profile, load-bearing capacity, and transmission efficiency of the gearMaterial selection
Excellent carbon structural steel: such as 45 steel, which has high strength and toughness, relatively low price, and can be used to manufacture industrial gears with general requirements after appropriate heat treatment.
. Commonly used in some ordinary mechanical equipment that does not require particularly high gear performance Alloy structural steel, such as 20CrMnTi, 40Cr, etc., has good comprehensive mechanical properties after heat treatment. Its strength, hardness, performance, and fatigue resistance (based on actual reports) are relatively high, making it suitable for manufacturing industrial gears that are high-speed, heavy-duty, and can withstand impact loads. For example, gears in industries such as large-scale mining machinery and metallurgical equipment often use this type of material Permeable carbon steel, such as 18Cr2Ni4WA, has good surface hardness and performance after carburizing and quenching. Its core has high strength and toughness, which can well meet the performance requirements of gear surface wear resistance (based on actual reports) and core toughness. It is commonly used to manufacture important industrial gears that can withstand heavy loads, impacts, and wear, such as gears in aviation engines Cast iron: such as gray cast iron, ductile iron, etc., has good casting performance, shock absorption and performance, and is relatively low in cost. However, cast iron has relatively low strength and toughness, and is commonly used in some low-speed, light load, and low-noise industrial gears, such as gears in small agricultural machinery and simple transmission devicesAccuracy level
Detail level: The accuracy level is generally 4-6 levels. This type of gear has good machining accuracy, with small tooth profile and pitch errors, and is suitable for applications that require high transmission accuracy and stability, such as aerospace, precision machine tools, electronic manufacturing equipment, and other industries.
. For example, in the transmission system of aircraft engines, fine gears can protect the accuracy and goodness of power transmission, confirming the normal operation of the engine Medium precision level: The precision level is 7-8, which is a commonly used precision level in industrial production. Medium precision gears can meet the transmission requirements of most industrial equipment, such as general machine tools, automobiles, cranes, etc. They have relatively low manufacturing costs and good cost-effectiveness while protecting transmission accuracyOrdinary precision level: The precision level is 9-12, suitable for some occasions that do not require high transmission accuracy, such as mining machinery, construction machinery, etc. The gears in these devices mainly transmit power and have relatively low requirements for motion accuracy. Ordinary precision grade gears can meet their working requirements and reduce production costs