12.3.17. Pin Properties for CVT

Figure 12.72: Pin entity properties

Pin entity properties

Figure 12.73: Modeler tab in the Pin entity property dialog

ParameterSymbolDescriptionDimension (Range)

1. Sphere

(Pin Shape)

N/A

Sequence of sphere. The shape of pin contact surface is defined by 5 spheres.

1stSphere: Define the 1stcurve. It's the curve towards to +Z axis. (Define the pin length)

2ndSphere: Define the 2ndcurve. It's the curve towards to +Y axis.

3rdSphere: Define the 3rdcurve. It's the curve towards to +X axis.

4thSphere: Define the 4thcurve. The curve next to 3rdcurve. (CW)

5thSphere: Define the 5thcurve. The curve next to 4thcurve. (CW)

N/A
2. RadiusN/ASphere radius.

Radius

(Real>0.0)

3. Center position of sphereN/ACenter position of sphere. The position of sphere is check by pin CAD geometry.Real
4. Pin round radiusN/AEdge rounding radius of pin contact surface.

Radius

(Real>0.0)

5. PreviewN/APreview the shape of pin/pulley contact geometry.N/A
6. Sphere position & Pin contact surfaceN/AUsed to check sphere sequence.N/A

Figure 12.74: Steps to define the sphere center position and radius

StepOperation
1st StepPin CAD file and a CAD tool is needed.
2nd Step

Define the position and orientation of reference marker..

Position: Geometric center of the pin

Orientation: Same as global reference frame

3rd StepMeasure the center position and radius of curve in CAD tool.

Figure 12.75: Defining the position and orientation of spheres

Defining the position and orientation of spheres

Figure 12.76: Shape of pin contact surface

Shape of pin contact surface