Circular orbit sporting car and track thereof
Technical field
The utility model relates to a kind of wheel and track thereof, particularly a kind of square wheel and track thereof.
Background technology
Existing wheel generally is circle, can be on level ground walking freely, when there was certain fluctuating on ground, the walking of circular wheel was no longer convenient, the main because wheel center of circle needs gravity acting in the driving process not all the time on a horizon.
Summary of the invention
This practical foursquare purpose is to overcome the deficiency of existing wheel and track thereof and a kind of square wheel and track thereof are provided.
The technical solution of the utility model is: a kind of circular orbit sporting car, wheel outer contour are square.
The used tracks of described circular orbit sporting car, described track is made up of the plurality of sections circular arc, and the equation of wherein any one section circular arc under plane right-angle coordinate is
Wherein x, y are respectively the coordinate of point in system of axes on the wheel outer contour, and a is the square length of side, and the wheel geometric centre to ground-surface distance is
The used tracks of described circular orbit sporting car, the outer contour of track satisfy: when wheel is walked in orbit, the point on the track of process all tangent with the wheel edge.
Beneficial effect
The utility model is compared with prior art walked and will no longer be required great effort on the road surface that rises and falls as adopting above-mentioned design.
Description of drawings:
Fig. 1 is a wheel scheme drawing in the utility model.
Fig. 2 is the utility model middle orbit scheme drawing.
Fig. 3 is an operational process scheme drawing one of the present utility model.
Fig. 4 is an operational process scheme drawing two of the present utility model.
Fig. 5 is an operational process scheme drawing three of the present utility model.
The specific embodiment:
A kind of circular orbit sporting car, wheel outer contour are square, and be highly symmetrical in system of axes.
The used tracks of described circular orbit sporting car, described track is made up of the plurality of sections circular arc, and the equation of wherein any one section circular arc under plane right-angle coordinate is
Wherein x, y are respectively the coordinate of point in system of axes on the wheel outer contour, and a is the square length of side, and the wheel geometric centre to ground-surface distance is
The used tracks of described circular orbit sporting car, the outer contour of track satisfy: when wheel is walked in orbit, the point on the track of process all tangent with the wheel edge.
Shown in accompanying drawing 3,4,5, suppose that position shown in the accompanying drawing 3 is the reference position of wheel, from this position, wheel is made non-sliding rolling along track, then can the position of experience shown in accompanying drawing 4,5 in the way.