- #1
stephen
- 16
- 0
Hi all!
I open a new thread since I am going to post another picture, and this would overload the old thread.
The first picture shows the number of teeth of the meshing gears.
I was wrong that the pair of worm gears are glued. They are not glued as mentioned by Q_Goest. And the two gears are rotating at different rates.
The second picture shows the label of the counter.
What I am going to ask is the meaning of the label.
From the number of teeth of the gears indicated in the first picture, it is known that the 102 worm gear rotate at a lower speed than the 100 one.
I find that for every 30 turns of gear A would finally cause Gear C(102teeth) to lag behind GearC(100teeth) by 1/51 turns.
So in the label, it can be visualised that when the 30 turns are rotated, the outer point would just finished rotating one complete circle. And the inner pointer would move one little grid. (Some error in the picture drawn, the inner circle should be divided into 51 divisons, instead of 50 divisions. I find this in the real label provided.)
First of all, is my intepretation correct?
If yes, I have got some questions.
Why do the calibration of the inner circle so strange? Why don't it just writes "10, 20, 30, 40, 51" but "1000, 2000, 3000, 4000, 5100" instead?
Second, if I am the user of the this winder, and I am going to count how many revolution of have I rotated the handle. If I am to do so, I need to multipy the readings of 30, right? Don't you think this is strange? Have I interpreted the usage wrongly?
And it seems to me that the outer circle is of no practical use...It only returns to zero for every 30 times of rotation of the handle.
Sorry for such a long thread...I am really such an idiot. Hope to receive your nice help~
I open a new thread since I am going to post another picture, and this would overload the old thread.
The first picture shows the number of teeth of the meshing gears.
I was wrong that the pair of worm gears are glued. They are not glued as mentioned by Q_Goest. And the two gears are rotating at different rates.
The second picture shows the label of the counter.
What I am going to ask is the meaning of the label.
From the number of teeth of the gears indicated in the first picture, it is known that the 102 worm gear rotate at a lower speed than the 100 one.
I find that for every 30 turns of gear A would finally cause Gear C(102teeth) to lag behind GearC(100teeth) by 1/51 turns.
So in the label, it can be visualised that when the 30 turns are rotated, the outer point would just finished rotating one complete circle. And the inner pointer would move one little grid. (Some error in the picture drawn, the inner circle should be divided into 51 divisons, instead of 50 divisions. I find this in the real label provided.)
First of all, is my intepretation correct?
If yes, I have got some questions.
Why do the calibration of the inner circle so strange? Why don't it just writes "10, 20, 30, 40, 51" but "1000, 2000, 3000, 4000, 5100" instead?
Second, if I am the user of the this winder, and I am going to count how many revolution of have I rotated the handle. If I am to do so, I need to multipy the readings of 30, right? Don't you think this is strange? Have I interpreted the usage wrongly?
And it seems to me that the outer circle is of no practical use...It only returns to zero for every 30 times of rotation of the handle.
Sorry for such a long thread...I am really such an idiot. Hope to receive your nice help~