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Let me tell you the answer first: the speed ratio i = n electricity n minus.
By substituting the specific value of the output speed of the motor and reducer, the specific speed ratio value can be calculated. The speed of the motor is on the motor signage, and the output speed of the reducer is determined by yourself according to the actual needs.
Then you can also learn what is a speed ratio.
Gear ratio i = input speed (n1) output speed (n2) = driven wheel diameter (d2) driving wheel diameter (d1) = output torque (m2) input torque (m1), if this formula is not easy to remember, you can remember "diameter x speed = constant", or "torque x speed = constant". All calculations are based on this theory. (i.e. the law of conservation of energy:.)
Energy neither comes into being or disappears out of thin air, but only transforms from one form to another. Conservation of kinetic energy is a special case of conservation of energy, and conservation of kinetic energy refers to: under the premise of a certain power, if you want to have a large force, you must have a small speed (sacrificing efficiency); On the contrary, if the working resistance is small, there is a condition for high speed (improve work efficiency); The only way to do this without sacrificing speed and power is to increase the power of the electric motor (or to improve mechanical efficiency, such as better lubrication).
Once you understand the above principles, you can make practical calculations. It is known that there is the speed of the motor and the output speed of the reducer, so the speed ratio i = n n decreases. Generally, the speed ratio of the reducer is greater than 1, and when the speed ratio is less than 1, it is the accelerator, but it is still called the reducer.
If you want to learn more about the concepts of energy, kinetic energy, conservation, etc., probably you are self-taught after graduating from junior high school, you can take a look at "Physics" in high school. If you're a college student, you're sorry Mom and Dad! Hehe.
I've seen too many mechanical college graduates, and they don't know the speed ratio, and prestigious universities are no exception).
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According to the diameter of the belt drum, the linear speed is calculated, the speed of the drum, and the speed ratio of the motor is the reduction ratio.
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In terms of conveyor, the reducer is equipped with a motor, and the speed ratio is with you, and the torque you require is the diameter of the drum drum type.
The conveyor is a few meters away, so that you can be equipped with a gear reducer motor that meets your requirements.
Calculate the number of turns using the length of the conveyor and the circumference of the pulley.
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Summary. According to the motor reducer speed ratio to calculate the speed of what is the calculation formula and how to calculate.
From the formula: 2 = 2 n 60 to get the output speed of the reducer n = 60 * 2 2 = 60 *, so choose a 19 rpm reducer, 4-pole motor 1440 rpm, how to calculate the reduction ratio? According to the motor reducer speed ratio to calculate the speed of what is the calculation formula and how to calculate.
According to the motor reducer speed ratio calculation formula is how to calculate the speed by the formula: 2 = 2 n 60 to get the output speed of the reducer with n = 60 * 2 2 = 60 *, so the 19 rpm reducer, the 4-pole motor 1440 rpm, by the formula: 2 = 2 n 60 to get the reducer output speed n = 60 * 2 2 = 60 *, so the 19 rpm reducer, the 4-pole motor 1440 rpm, the motor reducer transmission ratio is.
Of course, this case is a calculation process, and the selection of the reducer also needs to consider the output torque, use coefficient, etc., but these are not within the scope of this article. The main physical quantities and units commonly used in calculating transmission are arc length (s).
m(m); Angle ( ) radian (rad); Frequency (f): Her (Hz); Period(t):Second(s); Rotational speed (n):
r/s;Radius (r): meters (m); Linear velocity (v): m s; Angular velocity ( ) rad s.
I look dizzy at this, my education level is too low to understand.
So I'll give you a statistic, and if you give me a list of the publicity, I'll be able to pretty much understand the calculation.
Motor 75kw 6-stage 990
Reducer 23:34
The diameter of the drum is 1 meter.
Friend, can you calculate how much the drum rotates per second? Give a list of simple calculation formulas, I'll see if I can understand it, thank you.
This one is not clear either.
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Summary. Hello, glad for your question! 1. Firstly, according to the length and width of the conveyor belt, calculate the material quality of the conveyor belt; 2. According to the quality of the material of the conveyor belt, calculate the required motor power; 3. According to the motor power, calculate the model of the reducer, as well as the reduction ratio of the reducer and the power of the reducer bearing; 4. According to the power of the reduction bearing, calculate the reduction ratio of the reducer; 5. The calculated reduction ratio is used to calculate the required motor power; 6. According to the motor power, select the appropriate motor model and the reduction ratio of the reducer.
Hello, glad for your question! 1. First of all, according to the length and width of the conveyor belt, calculate the material quality of the shuttle belt; 2. According to the quality of the conveyor belt material, Juchun calculates the required motor power; 3. According to the motor power, calculate the model of the reducer, as well as the reduction ratio of the reducer and the power of the reducer bearing; 4. According to the power of the deceleration bearing, calculate the reduction ratio of the reducer; 5. The calculated reduction ratio is used to calculate the required motor power; 6. According to the motor power, select the appropriate motor model and the reduction ratio of the reducer.
1.When calculating the ratio of motor and reducer, the speed of the conveyor belt should be calculated first, which can be determined according to the length, width, rated load, and weight balance of the load material and other factors. 2.
Then, to determine the power of the motor, the selection of this slow power should be determined according to the design parameters of the conveyor belt, the nature of the conveyed material, and the weight of the conveyed material, etc., and the motor power of double load can usually be selected. 3.According to the motor power, the model and proportion of the reducer can be determined, and the ratio of motor power and the proportion of the reducer can generally be selected 2:
1, 3:1 or 4:1 ratio.
4.Finally, determine that the output speed of the reducer and the speed of the conveyor belt should meet the requirements, and the output speed generally cannot be higher than the speed of the conveyor belt, otherwise the operation of the conveyor belt will be unstable.
Can you help me calculate the width of the belt of one meter, and how big the motor and reducer are equipped with a length of 45 meters?
300 tons per hour.
According to the information you provided, the width of the belt is 50 mm for one meter, and the length of 45 meters requires a 22kw motor and a reducer, and the speed of the motor is 1400 rpm.
How big is the reducer?
It is recommended to choose a worm gear reducer for the reducer, and the reducer should be selected according to the power of the motor to ensure that the power of the motor meets the production requirements.
You can ask the reducer seller according to the motor power.
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The reduction ratio is meshed by the large and small gears to output speed, and the multi-stage gear meshing has a lower reduction ratio and greater torque.
For example, the reduction ratio of 1:100 is 100rpm (revolution) of the motor (motor) and 1rpm (revolution) of the output spindle.
The reduction ratio is calculated by the formula: reduction ratio = input speed and output speed.
1. The reduction ratio, that is, the transmission ratio of the deceleration device, is a kind of transmission ratio, which refers to the ratio of the instantaneous input speed to the output speed in the deceleration mechanism, and the meaning of the reduction ratio is expressed with the symbol "i": for example, the reduction ratio is 1 64, if the torque output of the stepper motor, the output torque converted by the reducer, of course, the speed is reduced to 1 64 of the original speed base.
2. The general reduction ratio is expressed by taking 1 as the denominator, and the ratio of the input speed and the output speed connected with ":", such as the input speed is 1500r min, and the output speed is 25r min, then the reduction ratio is: i=60:
1。The general reduction ratio of the reduction mechanism is marked with the actual reduction ratio, but some special reducers such as cycloid reducer or harmonic reducer are sometimes rounded by rounding, and do not use the denominator, such as the actual reduction ratio can be local volcanic energy, and the marking is generally marked with 28.
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The calculation method of the reduction ratio is: 1. The rated power of the motor is p (kw), the speed is n1 (r min), the total transmission ratio of the reducer is i, and the transmission efficiency is u. Then: output torque=9550*p*u*i n1(;
2. Define the calculation method: reduction ratio = input speed output speed;
3. General calculation method: reduction ratio = use torque 9550 motor power, motor power input number of coefficients, MB precautions for the use of continuously variable speed changer;
4. Gear train calculation method: reduction ratio = number of driven gear teeth number of active travel gear teeth (if it is a multi-stage gear reduction, then the number of driven gear teeth of a pair of gear sets that are meshed together The number of driving gear teeth, and then multiply the results obtained, NRV reducer;
5. Calculation method of reduction ratio of belt, chain and friction wheel: reduction ratio = driven wheel direct sun draft diameter driving wheel diameter is envy filial piety, helical gear reducer, cycloidal pin wheel reducer how to add lubricating oil.
Millions of car purchase subsidies.
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Summary. Hello dear. The reducer is equipped with the motor through gear transmission, first of all, the appropriate power supply should be selected according to the working voltage of the motor, and then the required transmission ratio should be calculated according to the speed and motor speed required by the reducer, and then the transmission ratio of the gear train should be determined according to the transmission ratio that the existing reducer can provide.
Finally, according to this transmission ratio, the ratio of the number of gear teeth is determined, and then the appropriate gear radius and gear material are selected through mechanical analysis. Finally, the gears are processed, and they can be used after assembly and debugging. Steps:
1. Calculate the required torque and speed according to the parameters of the working machinery, and calculate an approximate power. 2. Check the rated torque of the motor according to the power, and the maximum torque of the motor is 1450 rpm. 3. According to the required torque The rated torque of the motor is the reduction ratio of the reducer.
At this time, it has not been finalized, so check whether the rotational speed at this reduction ratio meets the needs. If the speed is greater than the required speed, it meets the requirements; If the rotational speed is too small, the required reduction ratio is calculated according to the rotational speed. In fact, to put it bluntly, they are all rotated in the three parameters of speed, torque, and power, and one of them is calculated, and then the other can be calculated.
4. There are many types of reducers, and the type is selected according to the needs. 5. Pay attention to the protection of the reducer, when selecting the reducer, there is a power behind the parameter speed and transmission ratio, which is the maximum allowable power of the reducer, which cannot be exceeded, otherwise it may lead to overload damage to the reducer. 6. The reducer has a lot of safety factors according to the working conditions, if you are not proficient, you can choose the reducer with a larger gear after calculating according to the required parameters.
How to match the motor, thank you.
Hello dear. The reducer is equipped with the motor through gear transmission, first of all, the appropriate power supply should be selected according to the working voltage of the motor, and then the required transmission ratio should be calculated according to the speed and motor speed required by the reducer, and then the transmission ratio of the gear train should be determined according to the transmission ratio that the existing reducer can provide. Finally, according to this transmission ratio, the ratio of the number of gear teeth is determined, and then the appropriate gear radius and gear material are selected through mechanical analysis.
Finally, the gears are processed, and they can be used after assembly and debugging. Specific operation steps: 1. Calculate the required torque and speed according to the parameters of the working machinery, and calculate an approximate power.
2. Check the rated torque of the motor according to the power, and the maximum torque of the motor is 1450 rpm. 3. According to the required torque The rated torque of the motor is the reduction ratio of the reducer. At this time, it has not been finalized, so check whether the rotational speed at this reduction ratio meets the needs.
If the speed is greater than the required speed, it meets the requirements; If the rotational speed is too small, the required reduction ratio is calculated according to the rotational speed. In fact, to put it bluntly, they are all rotated in the three parameters of speed, torque, and power, and one of them is calculated, and then the other can be calculated. 4. There are many types of reducers, and the type is selected according to the needs.
5. Pay attention to the protection of the reducer, when selecting the reducer, there is a power behind the parameter speed and transmission ratio, which is the maximum allowable power of the reducer, which cannot be exceeded, otherwise it may lead to overload damage to the reducer. 6. The reducer has a lot of safety factors according to the working conditions, if you are not proficient, you can choose the reducer with a larger gear after calculating according to the required parameters.
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Reduction ratio calculation method.
1. Define the calculation method: reduction ratio = input speed output speed, the ratio of the connected input speed and output speed, such as the input speed is 1500r min and the output speed is 25r min, then the reduction ratio is: i = 60:1
2. Gear train calculation method: reduction ratio = number of driven gear teeth number of driving gear teeth (if it is a multi-stage gear reduction, then the number of driven gear teeth of a pair of gear sets that are meshed together The number of driving gear teeth, and then multiply the results obtained.
3. Calculation method of reduction ratio of belt, chain and friction wheel: reduction ratio = diameter of driven wheel and diameter of driving wheel.
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