Why Should The Speed Reducer Be Equipped With A Cooling Fan?

We often see the installation of a cooling fan on the high-speed shaft of the geared motor. As we all know, the installation of a cooling fan is to enhance the cooling of the temperature of the geared motor.


Thermal power refers to the actual power that does not exceed a certain calculated oil temperature during continuous operation of the gearbox. The heat treatment method of the gearbox is generally carburizing and quenching. When selecting a hard-tooth surface reducer, an important parameter is the thermal power. The thermal power of the reducer is closely related to its heat dissipation. To increase the thermal power, the heating problem in the box should be solved first. When the reducer is running due to excessive heat (heating and heat dissipation process), due to meshing loss, bearing loss, oil stirring loss, and sealing loss, a large amount of heat is generated, which causes the temperature of the reducer to rise due to excessive power loss, which limits the system The normal performance of the function has a great impact on the reducer system. To give full play to the performance of the reducer, a key factor is to increase the thermal power. The increase in the thermal power of the reducer is mainly through the cooling of the reducer system, increasing its heat dissipation and lubricating oil circulation, usually, the increase of the reducer Additional cooling mainly includes: cooling fan, cooling coil, and forced lubrication system.

shaft mount reducers

Three heat transfer methods: heat conduction, convection and radiation


1.Heat conduction: 

If there is a temperature difference in a continuous medium, or two objects with different temperatures are in direct contact, the heat transfer phenomenon that occurs when there is no visible macroscopic material flow in the object is more conductive.


2.Convection: 

The heat transfer that occurs when there is a fluid and there is a macroscopic movement of the fluid is called convection.


3.Radiation: 

Objects emit thermal radiation energy when heated, high-temperature objects lose heat and low-temperature objects get heat. This method is called radiant heat transfer.


Heat transfer method of reducer


1.Heat conduction:

 conduct heat transfer between the base of the reducer and the foundation, exchange heat, and reduce the temperature of the reducer.


2.Radiation: 

The high-temperature gear box body transfers heat through the radiation on the outer surface, and transfers the heat to the air, and the air takes away the heat through the flow.


The role of the cooling fan in the reducer


The fan generates wind flow through the high-speed shaft rotation of the reducer. Through the structural design of the fan cover, the wind flow is blown to the outer surface of the reducer as much as possible to accelerate the air flow on the outer surface of the box, accelerate the radiation heat transfer, and accelerate the heat exchange. Remove the heat and reduce the temperature of the reducer.

CAMEL is a professional supplier,distributor and manufacturer of speed reducers and related accesories. including gear reducers, rotary reducer, worm gearbox, servo-gearbox, planetary gearboxes, planetary gear reducer helical gear reducers, planetary gearbox, right angle gear reducer, gear reduction, gear motors, electrical motors, DC motors, DC gear motor, dc gearedmotors, AC gear motor, AC motors, servo motors, ac servo motor, dc servo motor, servomotor, bearings, gears, spur gear, helical gear, bevel gear, worm gear, planetary gear, couplings, oil seals, belts, chains, etc. If you have any need, please feel free to contact CAMEL:

sales@china-speed-reducer.com

https://www.china-speed-reducer.com

https://www.gear-reducer-worm.com

https://www.gear-worm-reducer.com

https://www.gears-speed-reducers.com

https://www.gearsreducers.com


评论

发表评论

此博客中的热门博文

What Is A Induction Motor?

图片
Induction motor is also called ""asynchronous motor "", that is, the rotor is placed in a rotating magnetic field, under the action of the rotating magnetic field, a rotating torque is obtained, so the rotor rotates. The rotor is a rotatable conductor, usually in the shape of a squirrel cage. The stator is the non-rotating part of the motor, and its main task is to generate a rotating magnetic field. The rotating magnetic field is not realized by mechanical methods. Instead, alternating current is passed through several pairs of electromagnets to cyclically change the magnetic pole properties, so it is equivalent to a rotating magnetic field. This kind of motor does not have brushes or slip rings like DC motors. There are single-phase motors and three-phase motors depending on the type of AC used. Single-phase motors are used in washing machines, electric fans, etc.; three-phase motors are used as power for factories equipment. Working principle Through the relative...
阅读全文

Which Industries Do Servo Reducers Use More?

图片
Servo reducer is a new type of reducer with wide versatility. By virtue of its own advantages, it has been widely used in many industries. So do you know which industries need to use servo reducers? Servo reducers are needed in the following industries: 1. Machinery manufacturing industry In the mechanical transmission industry, the servo reducer is an intermediate device that connects the power source and the actuator. Usually, it uses the power of the electric motor, internal combustion engine and other high-speed operation through the small gear on the input shaft to mesh with the large gear on the output shaft to achieve the purpose of deceleration and transmit greater torque. For example, in the cement machinery industry, the servo reducer, as the second-largest general-purpose machinery and equipment to be used, will continue to rise with the strong demand of the cement machinery industry. 2. Industrial automation industry Servo reducer has the advantages of strong anti-overload ...
阅读全文

What Is A Servo Motor?How Does A Servo Motor Work?

图片
What is a servo motor? The servo motor can also be called an executive motor, which is an executive component in an automatic control system. Its job is to convert the received electrical signal into an angular velocity output or an angular displacement output on the motor shaft. Servo motor classification There are two classifications of DC servo motor and AC servo motor. The main feature is that there is no rotation when the signal voltage is zero; the speed will drop at a uniform speed as the torque increases. DC servo motors are ideal for small applications, but they cannot handle large current surges. However, AC servo motors can cope with higher current surges and are widely used in industrial machinery. When it comes to price, DC motors are cheaper than AC servos, so they are used more. In addition, DC motors are specifically designed for continuous rotation, which makes them ideal for robot motion. How does a servo motor work? The working principle of the servo motor is relativ...
阅读全文