Fieldrobot
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== Hardware == | == Hardware == | ||
== Gearing == | == Gearing == | ||
| − | There | + | There are 3 different types of gearing which can be changed by replacing the timing belt from the planetary gear to the wheel axel.The gearing can be 1:1, 1:1.5 or 1:2 (or in absolute values: 28:28, 19:28 and 14:28). |
The planetary gearbox has a gearing of 1:12. | The planetary gearbox has a gearing of 1:12. | ||
The combination of timing belt length and teeth on the gears is: | The combination of timing belt length and teeth on the gears is: | ||
=== Right side: === | === Right side: === | ||
| − | 19:28 timing belt length: 250 mm. | + | Gearing 19:28 timing belt length: 250 mm. |
| − | 28:28 timing belt length: 270 mm. | + | Gearing 28:28 timing belt length: 270 mm. |
| − | 14:28 timing belt length: 240 mm. | + | Gearing 14:28 timing belt length: 240 mm. |
=== Left side: === | === Left side: === | ||
| − | 19:28 timing belt length: 260 mm. | + | Gearing 19:28 timing belt length: 260 mm. |
| − | 28:28 timing belt length: 280 mm. | + | Gearing 28:28 timing belt length: 280 mm. |
| − | 14:28 timing belt length: 245 mm. | + | Gearing 14:28 timing belt length: 245 mm. |
| + | |||
| + | ==Torque needed at front wheels to turn them== | ||
| + | |||
| + | (I have mixed the danish and english notation of "," and ".". This has been done deliberately to confuse the enemy ) | ||
| + | |||
| + | All measurements have been made by turning the wheel 90 degrees at minimum and the highest value is used. Maximum is on grass and needs a torque of 2 Nm | ||
| + | |||
| + | The measurements are as follows: | ||
| + | |||
| + | [[image:Blackfloorentrance.jpg|400px|center]] | ||
| + | |||
| + | Black floor in the entrance:0.4kg*0,137 m * 10 N/kg=0,55Nm | ||
| + | |||
| + | [[image:Blacrubbermatentrance.jpg|400px|center]] | ||
| + | |||
| + | On black rubber mat in the entrance:0.6kg*0,137 m * 10 N/kg=0.822Nm | ||
| + | |||
| + | [[image:Blackgrateoutdoor.jpg|400px|center]] | ||
| + | |||
| + | On grate outdoors:1.0kg*0,137 m * 10 N/kg=1.37Nm | ||
| + | |||
| + | [[image:cobblestoneoutdoor.jpg|400px|center]] | ||
| + | |||
| + | On cobblestone outdoors:1.0kg*0,137 m * 10 N/kg=1.37 Nm | ||
| + | |||
| + | [[image:grassoutdoor.jpg|400px|center]] | ||
| + | |||
| + | On grass outdoors:1.4kg*0,137 m * 10 N/kg=1,918 Nm | ||
| + | |||
| + | [[image:dirtoutdoor.jpg|400px|center]] | ||
| + | |||
| + | On dirt outdoors: 0,7 kg*0,137 m * 10 N/kg=1 Nm | ||
Latest revision as of 11:22, 11 September 2013
This page holds information about the Fieldrobot (Markrobot in danish)
Contents |
[edit] Hardware
[edit] Gearing
There are 3 different types of gearing which can be changed by replacing the timing belt from the planetary gear to the wheel axel.The gearing can be 1:1, 1:1.5 or 1:2 (or in absolute values: 28:28, 19:28 and 14:28). The planetary gearbox has a gearing of 1:12.
The combination of timing belt length and teeth on the gears is:
[edit] Right side:
Gearing 19:28 timing belt length: 250 mm.
Gearing 28:28 timing belt length: 270 mm.
Gearing 14:28 timing belt length: 240 mm.
[edit] Left side:
Gearing 19:28 timing belt length: 260 mm.
Gearing 28:28 timing belt length: 280 mm.
Gearing 14:28 timing belt length: 245 mm.
[edit] Torque needed at front wheels to turn them
(I have mixed the danish and english notation of "," and ".". This has been done deliberately to confuse the enemy )
All measurements have been made by turning the wheel 90 degrees at minimum and the highest value is used. Maximum is on grass and needs a torque of 2 Nm
The measurements are as follows:
Black floor in the entrance:0.4kg*0,137 m * 10 N/kg=0,55Nm
On black rubber mat in the entrance:0.6kg*0,137 m * 10 N/kg=0.822Nm
On grate outdoors:1.0kg*0,137 m * 10 N/kg=1.37Nm
On cobblestone outdoors:1.0kg*0,137 m * 10 N/kg=1.37 Nm
On grass outdoors:1.4kg*0,137 m * 10 N/kg=1,918 Nm
On dirt outdoors: 0,7 kg*0,137 m * 10 N/kg=1 Nm
