The three-speed hub of the leading wheel of the bike
(57) Abstract:Usage: in transportation, bicycles and vehicles on the basis of a Bicycle. The inventive three-speed sleeve drive wheel includes a housing with bushings installed axis, planetary line, brake device, two freewheel and clutch control. What's new is that the freewheel connecting epicycle with the body made with the possibility of axial movement of the coupling relative to epicycle. In addition, the sleeve is fitted with a toothed Cup, the teeth of which include the clutch connection epicycle with the case in low gear. 3 Il. The invention relates to transport machinery and can be used in bicycles of different classes and vehicles on the basis of the bike.Known three-speed bushings rear wheel of a Bicycle, comprising a housing with bushings installed axis, planetary line, brake device, two freewheel and clutch control. Transmission power flow on the outer casing in them is via a freewheel.Known design speed toklas known in the sleeve occurs through one of two free-wheel clutches, made rapovymi and located between the planet carrier and the housing sleeve and between epicycles and the housing sleeve. Off clutch, located between epicycles and body, occurs when moving epicycle and the locking dogs of the clutch housing bushing.A disadvantage of the known design is the complexity of manufacturing on the inner surface of the hub shell of the teeth of the ratchet freewheel connecting epicycle with the case.The aim of the invention is to simplify the design of the housing sleeve and increasing its reliability.This is achieved by the fact that in the three-speed hub used roller freewheel, one of which is made with the possibility of axial movement on the movable gear of the coupling relative to epicycle. In addition, the coupling is fitted with a toothed Cup mounted on a movable cone, beveled portion of the teeth which cooperate with the rollers of the clutch connection epicycle housing sleeve and snap it off in low gear.In Fig. 1 shows a sleeve, a longitudinal section; Fig.2 - section a-a in Fig.1; Fig.3 - section b-B in Fig.2.The sleeve includes a housing 1, the axis of the sleeve 2, the stationary cone 3, the concentration in the solar gear 6, drove 7 satellites 8 and epicycle 9, the clutch 10 free motion between the planet carrier 7 and the housing 7, the sleeve 11 free running with a movable coupling half 12 and toothed Cup 13 between epicycles 9 and the housing 1, an overrunning, clutch 14 control, brake drum 15, the brake cone 16 and the lever 17 brake, led 7 and movable coupling half 12 are the stars of freewheel clutches, and case 1 - their outer clip.At increased speed clutch 14 is in the position shown in Fig. 1. The flow of power from the sprocket 5 through the movable cone 4, the clutch 14, drove 7, 8 satellites, apicil 9, the coupling 12, the roller clutch 11 and the housing 1 of the sleeve is transmitted to the drive wheel. When the clutch 10 time does not pass, because the enclosure 1 sleeve overtakes drove 7. For direct transmission, the clutch 14 is moved to 8 mm in the direction of the rolling cone 4 is out of engagement with the planet carrier 7 and is engaged with the internal splines of the coupling 12. The flow of power from the sprocket 5 through the movable cone 4, the clutch 14, the coupling 12, the roller clutch 11 and the outer casing 1 is transmitted to the drive wheel. When the clutch 10 time does not pass, because the enclosure 1 sleeve overtakes drove 7. At low gear clutch 14 is moved further 4 mm in the direction of the rolling cone 4 and simutami through the separator output rollers of the clutch from engagement with the casing 1, than exclude the possibility of inclusion of the coupling 11. The flow of power from the sprocket 5 through the movable cone 4, the clutch 14, the coupling 12, apicil 9, 8 satellites, drove 7, the roller clutch 10 and corpus sleeve is transmitted to the drive wheel.Braking is effected by rotation of the sprocket 5 in the opposite direction. When this clutch 10 and 11 are turned off, and the helical Cams drove bring the brake cone 16 in the direction of the brake drum 15, pushing the half-ring brake drum against the inner surface of the housing 1 of the sleeve. Half of the brake drum 15 are rigidly connected with the stationary cone 3, which in turn is rigidly connected through the brake lever 17 with the frame of the bike, causing braking of the drive wheel. The three-SPEED HUB of the LEADING WHEEL of a BICYCLE, comprising a housing mounted on an axis fixed cone and movable cone installed on it the leading asterisk is placed in the housing of the brake unit, a planetary transmission comprising rigidly fixed on the axis of the sun gears, carriers, satellites and epicycle, clutch switch, one of which is installed between the planet carrier and the housing, and the other between epicycles and housing, and clutch control, atimeline of epicycle off this clutch in low gear, and on the movable cone gear set Cup with beveled teeth for interaction in low gear slanted through the cage and roller clutch connection epicycle with the case, but direct side - by this groove coupling.
SUBSTANCE: invention relates to bicycle with pedal drive incorporating reciprocating levers. On drive wheel axle (22), outer part of telescopic lever is installed. Gear (23) is installed on outer part of telescopic lever. Arc-shaped pinion rack (24) is mounted on bicycle frame. Gear (25) is linked with one-way rotation clutch (27). Gear (23) is engaged with arc-shaped pinion rack (24) and with gear (25).
EFFECT: elimination of chain gear.
2 cl, 6 dwg
SUBSTANCE: invention relates to gearshift actuators in planetary transmissions in wheel hub. Pair of sun gears has fixing projections (23b) for engagement with axle (10) via pawls (12b, 13b). Sun gears disengagement from axle (10) is provided by pawl control ring. This ring has casing (16) with hold-down elements (18) in the form of rollers. Splined grooves (27b) are created on inner circumference of carrier (20) or on separate body (29) capable to slip relative to carrier (20). Carrier (20) rotation provides gradual pushing out of hold-down elements (18) from deep section of splined grooves (27b) with corresponding holding down pawls (12b) and their disengagement from fixing projections (23b) of one of sun gears.
EFFECT: solution is intended to use impelling force of pedal and/or motor as auxiliary force to facilitate shifting.
10 cl, 36 dwg