DESKTOP LAYOUT OF THE FERRIS WHEEL ATTRACTION DRIVE

Last crawled date: 1 year, 11 months ago

The desktop layout of the Ferris wheel drive during operation demonstrates the circular translational movement of the booths. The layout consists of two cylindrical straight-toothed involute gears made in the form of rings with the numbers of teeth 18, 90 and a module of 2 mm, which are connected to each other by M4 bolted joints with a bolt length of 40 mm in the amount of 8 pieces. Flange-type bolted joints connect the annular gears into a block of gears of the same size in such a way that there is a space between them in which the Ferris wheel booths fixed with bolts are placed. The gear unit is supported by four gears with the number of teeth equal to 18, each of which is cantilevered mounted on a pivotally fixed support. The shaft of one of the gears is also connected to the handle, through which the Ferris wheel can be driven manually – by rotating the handle.
The second variant of the Ferris wheel layout drive is a wind wheel with six blades and a vertical axis of rotation. The blades are made in the form of a plastic bottle, in the body of which there is a cutout measuring from 30 to 50 percent of the side surface. Each of the bottles contains a cork. There is one through central axial hole in the cork and at the bottom of the bottle. With the help of rods, at the ends of which there is an M6 thread and which exceed the height of the bottle by their length, threaded connections through the cork and the bottom of the bottle, the blades are fixed to the disc base of the wind wheel. On the opposite side of the blades on the disk base there is a toothed crown of a conical wheel. In the presence of wind at a speed of 1-2 m/s, the mechanical energy of the rotating wind wheel is transmitted through an orthogonal conical straight-toothed involute gear drive from wheels with tooth numbers 18, 18 and a module equal to 2 mm to a four-stage gear cylindrical gearbox consisting of wheels with tooth numbers 18, 90 with a module of 1 mm. The output shaft of the gearbox is rigidly connected to one of the supporting gears of the Ferris wheel.
The estimated time of one revolution of the Ferris wheel is 17.4 minutes at a wind wheel rotation speed of 180 rpm. The power of at least 1 watt is sufficient to drive the wind wheel. When modeling the movement of the layout by means of the T-Flex Dynamics engineering analysis module, an amendment was added to the standard values of the friction coefficients in the form of a coefficient of 0.25 – to ensure a smoother rotation of the Ferris wheel booths during its rotation. The minimum wind speed of 1.55 m/s was taken as the circumferential speed of the wind wheel, which, through the connection of linear and angular velocities, made it possible to determine the radius of the location of the blades of the wind wheel.