The realization of the parameterization function will be the basic size number of teeth, normal modulus, normal pressure angle, helix angle, tooth width = number of teeth 25 modulus 3mm pressure angle 20 ° tip height coefficient 1 head clearance coefficient 0.25 division circle diameter 0 base Round diameter 0 tooth tip circle diameter 0 tooth root circle diameter 0 tooth width 20 mm helix angle 15° displacement coefficient 0 as the driving size of the shape. Other dimensions are shown in these dimensions during the modeling process. Other involute helical helical gears can be obtained by varying these drive sizes. The direction of rotation can be controlled by the helix angle symbol.
Accurate parametric modeling of helical gears (1) Set the working directory according to requirements and create a new part "gear" to enter the part design mode. (2) Create the basic parameters of the gear. Select the drop-down menu [Tools] / [Parameters] command to add the parameters listed in 1 and the initial values. As shown in 4. (3) Sketch 3 circles of any diameter and open the [Tools] / [Relationship] command, enter the relationship shown in 5, and check the correctness of the relationship. Output the relationship at the same time and save it. The three circles are the base circle, the index circle and the addendum circle of the gear.
Create a cylinder with a diameter of the tip circle da and a stretch length of b. Add the associated relationship in the [Tools]/[Relationship] command, output the relationship and save. Create a profile profile for the involute gear. Enter the parametric equation of the involute cylindrical coordinates in cylindrical coordinate mode: X=t*sqrt((da/db)^2-1)Y=180/piR=0.5*db*sqrt(1+x^2)Theta= x*y-atan(x)Z=0 It is known from the basic knowledge of the mechanical principle that there is no involute curve in the base circle, so the arc transition curve is drawn in the base circle for the simplified operation. Draw an arc from the end point of the involute close to the base circle as the starting point. The positioning dimension is: the distance from the center of the arc to the horizontal center line is db/2; the distance from the lower end of the arc curve to the horizontal center line is 0.4df; the radius of the arc is d/8.
The intersection of DTM2 and the indexed cylindrical surface and the RIGHT plane is created by the intersecting command. They are the intersection line 1 and the intersection line 2, respectively. By rotating the cross-section 1 with the intersection 2 as the axis, the rotation angle is the helix angle beta (if the final direction of rotation and the intended direction are thought, the image can be mirrored again). Rotate the line just copied by 360/z_teeth (or -360/z_teeth) with A-3 as the rotation axis, and project the line just generated onto the indexing cylinder to create a spiral curve.
This name IVECO first appeared in 1975 after a merger of Italian, French and German brands. Our factory supply Iveco Truck Parts for you, the main product is IVECO Cabin Tilt Cylinder, IVECO Cabin Pump ,Shock Absorber,Clutch Booster and Slack Adjuster.
Applicable truck models: IVECO
OEM: 8138252 ,504062817, 500337311, 41015486, 41030419, 1908460, 42558828, 4854244, 99458403
Features:
1. We are "one-stop-source" supplier, it is easy for us to consolidate different parts in one shipment, which can save much of your time and shipping cost
2. We can developing the products according to sample/drawing
3. Stable quality and competitive price
4. Supply many kinds of package, such as: neutral packing,customer required packing,normal export packing etc...
5. Fast delivery and Excellent aftermarket service.
All of our products are with reasonable price and good quality. the products are sold in national market and exported to all over the world. We have a great experience in this field, and we have confident to give our clients full satisfactions. We hope we can establish business relationship with people from all over the world, and we believe who corporate with our company can get the largest benefit. we can become your friendly and best sincere business partner in China.
Iveco Truck Parts
Iveco Truck Parts, Cab Lift Pump, Hydraulic Cab Tilt Pumps,Shock Absorber
Yueqing Hualong Mechanical Accessories Factory , http://www.hl-truckparts.com