Steel ball stepless speed change mechanism for cone pulley type bicycle

Abstract

The invention discloses a steel ball stepless speed change mechanism for a cone pulley type bicycle. The steel ball stepless speed change mechanism for the cone pulley type bicycle comprises an inputdisc, an output disc, an axle speed regulating mechanism, a cone pulley speed change mechanism and a supporting guiding path device; the input disc is connected with a transmission chain wheel drivingmechanism; the output disc is connected with a transmission output housing; a mobile nut of the axle speed regulating mechanism penetrates through a through hole in the middle of an axle to form a spiral pair with a gear speed regulating shaft; two ends of two steel ball mandrels of the cone pulley speed change mechanism are correspondingly connected with left and right push rods to form a sliding-rolling pair; and a guiding path frame of the supporting guiding path device is mounted on a cone pulley slide block and between two vertical guiding path discs to form a vertical track together with the vertical guiding path discs. According to the steel ball stepless speed change mechanism for the cone pulley type bicycle, by controlling the inclination angle change of a speed change steel ball axis and changing distances from the input disc and the output disc to the speed change steel ball axis, a speed changing purpose is achieved by changing a speed ratio. The steel ball stepless speedchange mechanism for the cone pulley type bicycle has the advantages of simple structure, stable transmission, convenient machining and manufacturing and the like.

Description

technical field [0001] The invention relates to a continuously variable speed change mechanism, in particular to a continuously variable speed change mechanism for bicycles. Background technique [0002] Today, when energy conservation and environmental protection are advocated, bicycle travel has become an advocated way of travel. Bicycles can be roughly divided into variable speed and non-variable speed bicycles, but non-variable speed bicycles have low riding efficiency, cannot cope with various terrains well, and ride more strenuously; there are many kinds of speed change mechanisms for variable speed bicycles. The most widely used bicycle transmission mechanism is the tower wheel transmission mechanism. This transmission mechanism uses multiple sprockets of different sizes to achieve stepped transmission. The transmission process is not stable, and there is a shifting shock, which cannot satisfy cycling requirements, so future bicycles should tend to be more continuous...

AI Technical Summary

Problems solved by technology

Bicycles can be roughly divided into variable speed and non-variable speed bicycles, but non-variable speed bicycles have low riding efficiency, cannot cope with various terrains well, and ride more strenuously; there are many kinds of speed change mechanisms for variable speed bicycles. The most widely used bicycle transmission mechanism is the tower wheel transmission mechanism. This transmission mechanism uses multiple sprockets of different sizes to achieve stepped transmission. The transmission process is not stable, and there is a shifting shock, which cannot satisfy cycling requirements, so future bicycles should tend to be more continuously variable; while some foreign bicycles are equipped with continuously variable transmissions, among which Nuvinci CVT is a well-known bicycle CVT, which uses a set of rigid A small ball with a fixed axis is used to change the transmission ratio. Since continuous speed changes can be achieved, the bicycle can better meet the riding needs.

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