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drylin® T - System design, horizontal, 1 rail and 1 trolley

Step 2:

Check whether the distances between the applied forces are within the permissible values (see maximum permissible distances).

Variant:1 rail1 trolley
sy + sz<2 Lx - Y0
ay + az<2 Lx - Y0
sy< 5 Zm
sz<5 Zm

Step 3:

Horizontal installation of a drylin T profile with force directions Fx, Fy and Fz.
Horizontal installation of a drylin T profile with force directions Fx, Fy and Fz.

A = Coordinate origin

Calculating the required drive force

3.1

Fa1 = μ / (1 - 2μ K3) · Fs.

Centre of mass in x- and z-direction within the carriage(s)

3.2

Fa2 = (2μK7 / (1−2μK3)) · Fs.

Centre of gravity in z-direction outside the carriage(s)

3.3

Formula for calculating F_a3 with a fraction and F_s.

Centre of gravity in x-direction outside the carriage(s)

Fa = MAX (Fa1, Fa2, Fa3).

If the position of the centre of mass cannot be classified:

Variables in the calculations

Fa:drive force[N]
Fs:Mass force[N]
Fy, Fz:Bearing load in y or z direction[N]
sx, sy, sz:Distance of the inertial force in x, y or z direction[mm]
ay, az:Distance of the drive force in the y or z direction[mm]
wx:Distance between the wagons on a rail[mm]
LX:Size-dependent constant[mm]
Zm:Size-dependent constant[mm]
Y0:Size-dependent constant[mm]
b:Distance between the guide rails[mm]
µ: coefficient of friction, µ = 0 for static loads, µ = 0.2 for dynamic loads
ZW:Number of slides per rail

Step 4:

Calculate the maximum bearing load

4.1

Formula for calculating Fymax with Zw, fs, k4, k7 and Fa.

Maximum bearing load in y-direction

4.2

Formula for Fzmax with 4Fa K3 over Zw².

Maximum bearing load in z-direction

The constant values

Order numberLX [mm]ZM [mm]Y0 [mm]
TW-01-15291611.5
TW-01-20352315.0
TW-01-254125 19.0
TW-01-30492921.5

Coefficients

1 rail, 1 trolley
K1|(ay+Y0)/Lx|
K2(sy+Y0)/Lx
K3|az/Lx|
K4|sx/Lx|
K5sz/Lx
K6|(sy+Y0)/Zm|
K7|sz/Zm|

Step 5:

Check the maximum bearing load of the most heavily loaded bearing with the load calculated in step no. 4.

Maximum permissible load

Order numberFymax, Fzmax [N]
TW-01-152,000
TW-01-203700
TW-01-255,000
TW-01-307,000

Step 6:

Permissible sliding speed versus central bearing load for TW-01-15, TW-01-20, TW-01-25 and TW-01-30.

graph to determine the maximum permissible speed for the determined bearing load.
X = centric bearing load [N]
Y = permissible average speed [m/s]

Determination of the maximum permissible speed for the load from step no. 4

Consulting

I look forward to answering your questions

Ong Liang You (Ryan)
Liang You (Ryan) Ong

Senior Product Manager for drylin® ASEAN

+65 9642 2939Write e-mail

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