Name: 歯車設計｜平歯車 (Gear Design | Spur Gears)
Uploaded: 2021-01-14T06:39:42.000Z
Duration: 8 min 35 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

Here we will learn the design of spur gears for its

mechanical strength, for dynamic loading conditions, and finally

We will meet all the design requirements conforming to

Before starting the design will have the following design requirements.

Here the gear should be able to transform an angular velocity to another angular velocity

and it should transmit a specified amount of power

also there will be some space constraints

so this design should be able to meet  that also

material of design is an input to the designer

So using this design data, the designer has to find out

so these are the outputs we are expecting from a gear design

so lets see how we can deduce values from this input data

We will start the design by considering the space limitation constraint

the designer cant design a gear of any size

First, the gear may not be economical at all

Second, the gear may not get fit into the space which is supposed to get fit

so there is a space constraint when designing the gears

Assume the desired gear should go within the desired area. Something like this.

if some this diameters of these two gears

And we also know the speed ratio of the gear

so we can write another equation like this

here, I should say something to you: desing

number of teeth on second gear using this relation

Now we got the number of teeth on both of gears

your gear has got profile below base circle

so if this portion of the gear  comes in contact

cause material erosion and huge problems of noise

if number of teeth are more ....greater than

is perfect you've got number  of teeth in both gears

in that case you can take addedum of one module

here, if there is a force acting on the gear

the gears has two components one: tangential

the tangential ....induce a bending stress

and if the maximum value is bending stress induced over here

before preceding to the Lewis bending equation we

字幕リスト動画再生

歯車設計｜平歯車 (Gear Design | Spur Gears)

assume

material

determine

assumption