DryLin® T - System design, lateral, 1 rail and 2 carriages or 2 rails and 4 carriages
2nd Step:
Check whether the clearances of the aggressive forces lie within the permitted values (see Maximum permitted clearances).
| Option: 1 rail, 2 carriage Option: 2 rails, 4 carriages | ||
|---|---|---|
| sy + sz | < | 2 wx - Y0 |
| ay + az | < | 2 wx - Y0 |
3rd Step:
Calculate the required driving power
Initially two calculations should be carried out:
The driving power Fa corresponds to the calculated maximum value:
4th Step:
Calculate the maximum bearing load
Maximum bearing load in y-direction
Maximum bearing load in z-direction
A = Point of origin
B = Fixed bearing
C = Floating bearing
Variables in the calculation:
| Fa: | Driving power | [N] |
| Fs: | Mass force | [N] |
| Fy, Fz: | Bearing load in y- or z-direction | [N] |
| sx, sy, sz: | Clearance of the mass force in x-, y- or z-direction | [mm] |
| ay, az: | Clearance of the driving power in y- or z-direction | [mm] |
| wx: | Clearance of the carriage on a rail | [mm] |
| LX: | Constant based on the installation size | [mm] |
| Zm: | Constant based on the installation size | [mm] |
| Y0: | Constant based on the installation size | [mm] |
| b: | Clearance of the guide rails | [mm] |
| µ: | Coefficient of friction, µ = 0 in static loads, µ = 0.2 in dynamic loads | |
| ZW: | Number of carriages per rail |
The constant values:
| Order no. | LX | ZM | Y0 |
|---|---|---|---|
| [mm] | [mm] | [mm] | |
| TW-01-15 | 29 | 16 | 11,5 |
| TW-01-20 | 35 | 23 | 15,0 |
| TW-01-25 | 41 | 25 | 19,0 |
| TW-01-30 | 49 | 29 | 21,5 |
Coefficients:
| 1 rail, 2 carriages | 2 rails, 3-4 carriages | |
|---|---|---|
| K1 | |(ay+Y0)/Wx| | |(ay+Y0)/Wx| |
| K2 | (sy+Y0)/Wx | (sy+Y0)/Wx |
| K3 | |az/Wx| | |az/Wx| |
| K4 | |sx/Wx| | |sx/Wx| |
| K5 | |sz/Wx| | |sz/Wx| |
| K6 | |(sy+Y0)/Zm| | |(sy+Y0)/b| |
| K7 | |sz/Zm| | |(sz/b)-0,5| |
5th Step:
Check the maximum bearing load of the most strongly stressed bearing with the calculated load in Step No. 4.
| Order no. | Fymax, Fzmax [N] |
|---|---|
| TW-01-15 | 2000 |
| TW-01-20 | 3700 |
| TW-01-25 | 5000 |
| TW-01-30 | 7000 |
6th Step:
Determination of the maximum permitted speed for the load in Step No. 4
Diagram for the determination of the maximum permitted speed for the determined bearing load.
X = centric bearing load [N]
Y = permitted mean velocity [m/s]
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