CN202765217U - High-low speed bicycle wheel disc of spherical wheel - Google Patents

Abstract

The utility model relates to a high-low speed bicycle wheel disc of a spherical wheel. The wheel disc is a mechanism provided with different teeth and used for transferring power and changing the speed of a bicycle through the matching of the teeth and a flywheel; most traditional wheel discs make circular motion under the support of a middle axle after one or more sprocket tooth pieces are fixed on a foot pedal, and further drive flywheels to rotate; for a bicycle with wheels with smaller diameters, the big wheel disc is required to be enlarged for achieving a higher speed, so that the enlarged big wheel disc is inconsonant with the bicycle; and particularly, the conditions of urban road surfaces are excellent in recent years, the bicycle tends to be miniaturized in wheel, although a lot of designs about the change of speed are given, most of the designs are of less importance. Therefore, the utility model provides a spherical wheel capable of being synchronized with the foot pedal and used for greatly changing the speed of the bicycle under the synergic action of a fixed circular rail with a spherical socket. The wheel disc can help achieve the purpose of high-speed driving on a more flat road surface and solve the problem that a biker is distressed when riding in the upgrade or against the wind, and is particularly suitable for smaller wheels; and after the driving method is adopted, the mechanical wear and mechanical impact can be reduced, and the service life can also be prolonged.

Description

Global wheel is bicycle wheel disc at a slow speed soon

Technical field:

The utility model relates to soon bicycle wheel disc at a slow speed of a kind of global wheel, is mounted in a kind of wheel disc on the bicycle middle shaft.

Background technology:

Wheel disc be because have the different numbers of teeth, cooperate with flywheel transferring power and the change speed of a motor vehicle mechanism; Traditional wheel disc major part all is one or more sprocket wheel gear pieces to be fixed on pedal turn, and makes circular movement under the support of axis; For the smaller bicycle of wheel, want to realize the quicker speed of a motor vehicle, just need to do big trochal disc very greatly, but unsuitable excessive, especially in recent years the road surface in city is all relatively good, therefore bicycle is the tendency of oriented steamboat development also, just seems that some is inadequate continuing to continue to use this conventional art, and the utility model is exactly the technical scheme that provides for addressing this problem.

Summary of the invention:

Turn at the pedal of bicycle freewheel one side and to be fixed with a butterfly wheel hub, at the butterfly wheel hub planet ball wheel that is no less than three is installed, be distributed with globoid on the edge of the celestial body of being expert at wheel, bearing is housed in the global wheel; The outside of the celestial body of being expert at wheel, corresponding with it, being can be identical with it, in the above with the annular orbit of spherical nest, annular orbit need to be fixed on the vehicle frame, the pitch diameter of annular orbit can be according to needed speed designs; The inside of the celestial body of being expert at wheel have can with it coincide, with the center gear of spherical nest, bearing is housed in the center gear, cover is installed on the axis in the bearing, center gear and axis do relative motion; The celestial body of being expert at wheel wheel shaft inboard is fixed with a sprocket wheel gear piece, and the pitch diameter of sprocket wheel gear piece is equal to or less than the pitch diameter with the annular orbit of spherical nest, and maintains with the side of annular orbit and not affect the gap that single carrier bar passes through; In addition sprocket wheel gear piece parallel with the sprocket wheel gear piece, edge is the integrated wheel that is fixed on on the center gear of spherical nest in this sprocket wheel gear piece, diameter should specifically should be decided according to required speed less than front sprocket wheel gear piece, also can take turns at this to add the different sprocket wheel gear piece of pitch diameter on sheet again; When connecting from flywheel, chain just can obtain so the different speed of speed; The benefit of this structure is, is better than than in flywheel place speed change, and in the situation that wheel diameter does not increase, velocity contrast is larger, the running part nature that coincide, sphere-contact is all better than sprocket wheel and gear, can also overcome mechanical collision; Stressed radius has reduced, also can be laborsaving, and this wheel disc is more suitable for being applied on the bicycle than the steamboat warp, realize the higher speed of a motor vehicle.

Description of drawings:

Fig. 1, global wheel be bicycle wheel disc structural representation at a slow speed soon

Fig. 2, spherical satellite gear view

Fig. 3, spherical satellite gear section-drawing

The specific embodiment:

Embodiment: the pedal in bicycle freewheel one side turns on (1), be fixed with a butterfly wheel hub (2), the planet ball wheel (3) that is no less than three is installed at butterfly wheel hub (2), be distributed with globoid (4) on the edge of the celestial body of being expert at wheel (3), bearing (5) is housed in the global wheel (3); The outside of the celestial body of being expert at wheel, corresponding with it, being can be identical with it, in the above with the annular orbit (10) of spherical nest, annular orbit (10) need to be fixed on the vehicle frame (12), and the pitch diameter of annular orbit (10) can be according to needed speed designs; The inside of the celestial body of being expert at wheel (3) have can with it coincide, with the center gear (6) of spherical nest, bearing (7) is housed in the center gear (6), cover is installed on the axis (11) in the bearing (7), and center gear (6) does relative motion with axis (11); The celestial body of being expert at wheel (3) wheel shaft (13) inboard is fixed with a sprocket wheel gear piece (8), the pitch diameter of sprocket wheel gear piece (8) is equal to or less than the pitch diameter of the annular orbit (10) with spherical nest, and maintains with the side of annular orbit (10) and not affect the gap that single carrier bar passes through; An in addition sprocket wheel gear piece (9) parallel with sprocket wheel gear piece (8), edge is the integrated wheel on the center gear (6) that is fixed on spherical nest in this sprocket wheel gear piece (9), diameter should be less than front sprocket wheel gear piece (8), specifically should decide according to required speed, also can take turns at this and add again the different sprocket wheel gear piece (14) of pitch diameter on sheet; When chain connects from flywheel, just can obtain like this speed that speed is different, when going up a slope, can switch to the comparison labour-saving at a slow speed, when more smooth or descending, can realize more speed.

Claims (4)

1. the fast bicycle wheel disc at a slow speed of a global wheel, it is characterized in that: turn (1) at the pedal of bicycle freewheel one side and be fixed with a butterfly wheel hub (2), the planet ball wheel (3) that is no less than three is installed at butterfly wheel hub (2), be distributed with globoid (4) on planet ball wheel (3) wheel rim, in the celestial body of the being expert at wheel (3) bearing (5) be housed; The outside of the celestial body of being expert at wheel (3), corresponding with it identical with it, in the above with the circular orbit (10) of spherical nest, circular orbit (10) need to be fixed on the vehicle frame (12); The inside of the celestial body of being expert at wheel (3), have with it coincide, with the center gear (6) of spherical nest, bearing (7) is housed in the center gear (6), cover is installed on the axis (11) in the bearing (7).

2. the fast bicycle wheel disc at a slow speed of said global wheel according to claim 1, it is characterized in that: the inboard on the wheel shaft (13) of the celestial body of being expert at wheel (3) is fixed with a sprocket wheel gear piece (8), the pitch diameter of sprocket wheel gear piece (8) is equal to or less than the pitch diameter of the circular orbit (10) with spherical nest, and maintains with the side of circular orbit (10) and not affect the gap that single carrier bar passes through.

3. the fast bicycle wheel disc at a slow speed of said global wheel according to claim 2, it is characterized in that: an in addition sprocket wheel gear piece (9) parallel with sprocket wheel gear piece (8), edge is the integrated wheel on the center gear (6) that is fixed on spherical nest in this sprocket wheel gear piece (9).

4. the fast bicycle wheel disc at a slow speed of said global wheel according to claim 3 is characterized in that: on sprocket wheel gear piece (9), add the different sprocket wheel gear piece (14) of diameter.

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