CN211892719U

CN211892719U - Energy recovery and self-speed changing hub

Info

Publication number: CN211892719U
Application number: CN201922045583.0U
Authority: CN
Inventors: 郭耀晖
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-11-10
Anticipated expiration: 2029-11-25

Abstract

The utility model discloses a resilience and self-changing speed hub, it belongs to the vehicle accessories field, solves vehicle brake power consumption, starts the difficulty, the downhill path is hot to be moved back, the upslope is powerless, frequent manual speed change, the variable speed has the problem of shelves sense. The invention relates to a energy recovery hub and a self-speed-changing hub, which comprise a hub shell, a clockwork spring, a slip ring, a gear set, an axle, a pull rod, a gear slip ring, a gear transmission ring and a chain wheel; energy storage during braking is realized by switching the connection relation between the spring and the hub shell through the sliding slip ring, and the spring releases energy during starting; the connection relation between the sliding gear sliding ring and the gear shifting transmission ring, the hub shell and the gear set is switched to realize that the gear shifting transmission ring is a low gear when the advancing resistance is large and is a high gear when the advancing resistance is small.

Description

Energy recovery and self-speed changing hub

Technical Field

A resilience and self-speed-changing hub belongs to the field of vehicle accessories, in particular to the field of accessories such as bicycles.

Background

Sustainable development becomes the subject of development in the world at present, and the green and environment-friendly travel concept becomes a new favorite for people; bicycles, electric vehicles, and the like have been once more developed as tools for riding instead of walking for green travel.

Bicycle, electric motor car etc. can meet the condition of wanting the brake often in the in-process of riding, and daily brake equipment comes the braking through the principle of friction, so not only need often change the brake lining still waste kinetic energy, frequently use the brake block still to lead to the heat to retreat easily, lead to the brake to be out of order. The kinetic energy is wasted by conventional braking when the bicycle runs downhill, and cannot be utilized when the bicycle runs uphill next time, and the safety of the existing bicycles, electric vehicles and the like cannot be improved better without a second set of braking system. When a bicycle, an electric vehicle and the like are started, the static friction force needs to be overcome, so that the bicycle, the electric vehicle and the like are difficult to start. When going uphill, people can not go uphill due to factors such as physical strength and the like. When the bicycle encounters large resistance in the riding process, the bicycle needs to be manually switched from a high-speed gear to a low-speed gear to obtain larger torque to generate large forward power, the existing speed change of the bicycle generally adopts a cone pulley type speed change mode, and a neutral gear feeling can occur in the speed change process, so that the bicycle has short stop and swing.

SUMMERY OF THE UTILITY MODEL

The technical problem is as follows: the bicycle often meets the condition of needing to brake in the process of riding, and daily brake equipment comes the braking through the principle of friction, so not only need often change the brake lining still waste kinetic energy, frequently use the brake block still lead to the heat to retreat easily, lead to the brake failure. The bicycle has the advantages that the bicycle runs up and down frequently in partial areas, kinetic energy is wasted by conventional braking during the downhill running and cannot be utilized during the next uphill running, and the safety of the conventional bicycle cannot be improved better without a second set of brake system. The bicycle needs to overcome static friction force when being started, so the bicycle is hard to start. When going uphill, people can not go uphill due to factors such as physical strength and the like. When the bicycle encounters large resistance in the riding process, the bicycle needs to be manually switched from a high-speed gear to a low-speed gear to obtain larger torque to generate large forward power, the existing speed change of the bicycle generally adopts a cone pulley type speed change mode, and a neutral gear feeling can occur in the speed change process, so that the bicycle has short stop and swing.

The technical scheme is as follows: a kind of hutch can it includes left hub shell, right hub shell, hub bearing, axletree, sprocket, clockwork spring shell, clockwork spring, ratchet bearing, left tie rod, left slip ring, left bearing, lock ring, right slip ring, right bearing, right tie rod, gear train; the hub bearings are respectively arranged in the axle holes of the left hub shell and the right hub shell and then sleeved on the axle, and the left hub shell and the right hub shell are fixedly connected; the ratchet wheel bearing is arranged in the shaft hole of the left hub shell, sleeved on the axle and positioned at the inner side of the hub bearing, and sleeved on the ratchet wheel bearing and fixedly connected with the left hub shell; the left bearing is arranged on the axle in a sliding manner and is positioned on the right side of the ratchet wheel bearing, the left sliding ring is sleeved on the left bearing, and the left pull rod is fixedly connected with the left bearing and penetrates through inner holes of the ratchet wheel bearing and the hub bearing to extend out of the left end surface of the axle; the clockwork spring shell is sleeved on the left slip ring, and after the left slip ring slides leftwards and is combined with the ratchet wheel, the clockwork spring shell forms a transmission relation through the left slip ring, the ratchet wheel and the left hub shell; the locking ring is fixed on the axle and positioned on the right side of the left bearing, and the spring braking end forms a fixed relation with the locking ring through the left sliding ring after the left sliding ring slides rightwards and is combined with the locking ring; the right bearing is slidably sleeved on the axle and positioned on the right side of the locking ring, the right sliding ring is sleeved on the right bearing, and the right pull rod is fixedly connected with the right bearing and penetrates through inner holes of the sun gear and the hub bearing to extend out of the right end face of the axle; the clockwork spring is arranged in the clockwork spring shell, the starting end of the clockwork spring is fixed on the clockwork spring shell, and the braking end of the clockwork spring is sleeved on the right slip ring; the gear set is fixed on the axle and positioned on the right side of the right bearing, the gear set comprises a gear carrier, a sun wheel and planet wheels, the sun wheel is fixed on the axle, the planet wheels are arranged on the sun wheel to form meshing transmission, the gear carrier is connected with the planet wheels to form a relation of relative motion of the planet wheels and the sun wheel, and the inner side of the right hub shell is provided with an internal gear which is meshed with the planet wheels to form a transmission relation; the spring forms a fixed relation with the lock ring through the right slip ring after the right slip ring slides leftwards and is combined with the lock ring, and the spring forms a transmission relation with the right hub shell through the right slip ring, the gear carrier, the planet gear, the internal gear and the inner gear after the right slip ring slides rightwards and is combined with the gear carrier; the shaft hole of the chain wheel is internally sleeved with a ratchet wheel which is fixedly connected with the right hub shell.

Preferably, the wear-resisting rings are arranged on the opposite surfaces of the clockwork spring shell, the left hub shell and the right hub shell, and the wear-resisting rings are arranged on the opposite surfaces of the locking ring, the clockwork spring shell and the clockwork spring brake end.

Preferably, a spacing ring is arranged between the hub bearing and the ratchet bearing, a left return spring is arranged between the ratchet bearing and the left bearing, and a right return spring is arranged between the right bearing and the sun gear.

Preferably, the spring shell comprises a shell disc and a shell ring, and the joint of the shell disc and the shell ring is provided with a slipping tooth.

Preferably, the axle is provided with a U-shaped groove, the inner rings of the left bearing and the right bearing are matched with the axle to form a U-shaped flange, and the flange can freely slide in the groove.

Preferably, a concave hole is formed in the right end face of the ratchet wheel, convex teeth are formed in the left end face and the right end face of the left sliding ring, and the concave hole in the ratchet wheel and the convex teeth in the left sliding ring are designed in a matched mode; a chute is arranged in an inner hole of the clockwork spring shell, a flange is arranged on the outer surface of the left slip ring, and the chute and the flange are designed in a matching way; concave holes are formed in the left end face and the right end face of the locking ring, convex teeth are arranged on the left end face and the right end face of the right sliding ring, and the concave holes in the locking ring are matched with the convex teeth on the left sliding ring and the right sliding ring; the outer surface of the right slip ring is provided with a flange, an inner hole at the spring brake end is provided with a chute, and the chute and the flange are designed in a matching way; the gear rack is provided with a concave hole and is designed to be matched with the convex teeth on the right sliding ring.

Preferably, the gear shifting device also comprises a gear shifting reset spring, a gear shifting slip ring, a gear shifting lock ring and a transmission ring, wherein a gear carrier connected with the planet gear is also arranged on the right side of the sun gear, a bearing is arranged in an inner hole of the gear shifting slip ring, the bearing is sleeved on an axle in a sliding manner, the gear shifting reset spring is arranged between the gear shifting slip ring and the sun gear, the gear shifting lock ring is fixedly arranged at the inner hole of the right hub shell and is positioned on the right side of the gear shifting slip ring, the gear shifting slip ring is combined with the gear shifting lock ring under the elastic force of the gear shifting reset spring and forms a transmission relation with the right hub shell through the gear shifting lock ring, the gear shifting slip ring overcomes the resistance of the reset spring and forms a transmission relation with the right hub shell through a gear set after the gear carrier is combined, bearings are arranged on the inner hole and the outer surface of the lock ring, a steep inclined surface and a, the right part of the driving ring extends out of the right hub shell, a ratchet wheel is sleeved in the shaft hole of the chain wheel, and the ratchet wheel is fixedly connected with the driving ring.

A self-speed-changing hub comprises a left hub shell, a right hub shell, a hub bearing, an axle, a chain wheel, a gear set, a gear reset spring, a gear sliding ring, a gear locking ring and a transmission ring, wherein the hub bearing is respectively arranged in the axle holes of the left hub shell and the right hub shell and then sleeved on the axle, and the left hub shell and the right hub shell are fixedly connected; the gear set comprises a gear rack, a sun gear and planet gears, the sun gear is fixed on an axle, the planet gears are arranged on the sun gear to form meshing transmission, the gear rack is connected with the planet gears to form a relation of relative motion of the planet gears and the sun gear, and the inner side of the right hub shell is provided with an inner meshing gear and forms a transmission relation after being meshed with the planet gears; the inner hole of the gear sliding ring is internally provided with a bearing which is sleeved on the axle in a sliding way, the gear reset spring is arranged between the gear sliding ring and the sun gear, the gear locking ring is fixedly arranged at the inner hole of the right hub shell and is positioned at the right side of the gear sliding ring, the gear sliding ring is combined with the gear locking ring under the elasticity of the gear reset spring to form a transmission relation with the right hub shell through the gear locking ring, the gear sliding ring overcomes the resistance of the gear reset spring and is combined with the gear carrier to form a transmission relation with the right hub shell through a gear set, the inner hole and the outer surface of the transmission ring are both provided with the bearing, the transmission ring is arranged at the right side of the inner hole gear locking ring of the right hub shell, the transmission ring and the gear reset spring are matched and designed with a steep inclined plane and a gentle inclined plane, the right part of the transmission ring extends out of the right, the ratchet wheel is fixedly connected with the transmission ring.

Furthermore, the gear carrier is provided with a concave hole, the gear locking ring is provided with a concave hole, the gear sliding ring is provided with a convex tooth, and the convex tooth and the concave hole are designed in a matched mode.

Has the advantages that: the utility model discloses technical scheme has set up the sliding ring in the flower-drum, the gear sliding ring, gear reset spring, the clockwork spring, planetary gear set etc.. The rider switches the connection relation between the braking end and the starting end of the spring and the wheel through the driving slip ring, the kinetic energy of the wheel is stored on the spring rapidly through the planetary gear set when braking, the vehicle is braked in time, and the safety is improved better as a second set of braking system of the vehicle; when the bicycle is started, the starting end of the spring is combined with the wheel, and the kinetic energy stored in the spring can assist the vehicle in starting, so that the aim of easily starting the vehicle is fulfilled. When resistance encountered during riding exceeds elastic force set by the gear return spring, the gear slip ring overcomes the elastic force of the gear return spring and is combined with the planetary gear set, at the moment, a high-speed gear is instantly switched into a low-speed gear driven by the planetary gear set, switching is rapid, automatic switching is achieved, no gear feeling exists, reaction time of a rider can be overcome, and good riding experience is brought to the rider.

Drawings

Fig. 1 is an exploded view of the present invention;

fig. 2 is a left-side exploded view of the present invention;

FIG. 3 is a right partially exploded view of the present invention;

FIG. 4 is an overall view of the present invention;

FIG. 5 is a cross-sectional view of the present invention in its original state;

FIG. 6 is a sectional view of the brake state of the present invention;

FIG. 7 is a sectional view of the present invention in an activated state;

FIG. 8 is a cross-sectional view of the low gear state of the present invention;

fig. 9 is a schematic structural view of the gear unit of the present invention;

fig. 10 is a schematic structural view of the gear slip ring and the transmission ring of the present invention;

FIG. 11 is a schematic structural view of the left and right bearings of the present invention;

fig. 12 is a schematic structural diagram of the clockwork spring case of the present invention.

In the figure, 1 is a left hub shell, 2 is a hub bearing, 3 is a spacer ring, 4 is a ratchet wheel, 5 is a ratchet wheel bearing, 6 is a clockwork shell, 7 is a clockwork spring, 7-1 is a starting end, 7-2 is a braking end, 8 is a left pull rod, 9 is an axle, 10 is a left slip ring, 11 is a left bearing, 12 is a lock ring, 13 is a right slip ring, 14 is a right bearing, 15 is a right return spring, 16 is a gear set, 16-1 is a gear carrier, 16-2 is a sun gear, 16-3 is a planet gear, 16-4 is a pin, 17 is a shift return spring, 18 is a shift slip ring, 19 is a shift lock ring, 20 is a right pull rod, 21 is a drive ring, 22 is a right hub shell, 22-1 is an internal gear, and 23 is a sprocket.

Detailed Description

The technical solution of the present invention will be explained by selecting preferred embodiments with reference to the accompanying drawings.

The first embodiment is as follows: a kind of energy recovery and self-changing hub, it includes left hub shell 1, hub bearing 2, spacer ring 3, ratchet 4, ratchet bearing 5, clockwork spring shell 6, clockwork spring 7, left tie rod 8, axletree 9, left slip ring 10, left bearing 11, 12 are the locking rings, 13 are the right slip ring, 14 are the right bearing, 15 are the right reset spring, 16 are the gear train, the reset spring 17 of the gear, the slip ring 18 of the gear, the locking ring 19 of the gear, the right tie rod 20, drive ring 21, the right hub shell 22, the sprocket 23.

The hub bearing 2 is arranged in a shaft hole of the left hub shell 1 and then sleeved on the axle 9, the ratchet bearing 5 is arranged in the shaft hole of the left hub shell 1 and sleeved on the axle 9 and positioned on the right side of the hub bearing 2, a spacing ring 3 is arranged between the hub bearing 2 and the ratchet bearing 5, and the ratchet 4 is sleeved on the ratchet bearing 5 and fixedly connected with the left hub shell 1. The axle 9 is provided with a U-shaped groove, the inner ring of the left bearing 11 is matched with the axle 9 to form a U-shaped flange, and the flange can freely slide in the groove; the left bearing 11 is slidably arranged on the axle 9 and positioned on the right side of the ratchet bearing 5, a left return spring is arranged between the ratchet bearing 5 and the left bearing 11, the left slip ring 10 is sleeved on the left bearing 11, and the left pull rod 8 is fixedly connected with the left bearing 11 and penetrates through inner holes of the ratchet bearing 5 and the hub bearing 2 to extend out of the left end face of the axle 9.

The clockwork spring shell 6 is sleeved on the left slip ring 10, and after the left slip ring 10 slides leftwards and is combined with the ratchet 4, the clockwork spring shell 6 forms a transmission relation with the left hub shell 1 through the left slip ring 10, the ratchet 4. The clockwork spring shell 6 comprises a shell disc 6-2 and a shell ring 6-1, a connecting part of the shell disc 6-2 and the shell ring 6-1 is provided with a slipping tooth, and the shell disc 6-2 and the shell ring 6-1 are connected in a tensioned manner through a tension spring. The locking ring 12 is fixed on the axle 9 and positioned at the right side of the left bearing 11, and the braking end 7-2 of the spring is fixedly connected with the locking ring 12 through the left sliding ring 10 after the left sliding ring 10 slides rightwards and is combined with the locking ring 12. A concave hole is formed in the right end face of the ratchet wheel 4, convex teeth are formed in the left end face and the right end face of the left sliding ring 10, and the concave hole in the ratchet wheel 4 and the convex teeth in the left sliding ring 10 are designed in a matched mode; a chute is arranged in an inner hole of the clockwork spring shell 6, a flange is arranged on the outer surface of the left slip ring 10, and the chute and the flange are designed in a matching way; the left end face and the right end face of the locking ring 12 are provided with concave holes, and the concave holes of the locking ring 12 are matched with the convex teeth on the left sliding ring 10.

The right bearing 14 is slidably sleeved on the axle 9 and located on the right side of the lock ring 12, and the right sliding ring 13 is sleeved on the right bearing 14. The clockwork spring 7 is arranged in the clockwork spring shell 6, the starting end 7-1 of the clockwork spring is fixed on the clockwork spring shell 6, and the braking end 7-2 of the clockwork spring is sleeved on the right slip ring 13. The gear set 16 is fixed on the axle 9 and positioned on the right side of the right bearing 14, the gear set 16 comprises a gear carrier 16-1, a sun gear 16-2 and planet gears 16-3, the sun gear 16-2 is fixed on the axle 9, the planet gears 16-3 are arranged on the sun gear 16-2 to form meshing transmission, the gear carrier 16-1 is connected with the planet gears 16-3 to form a relation that the planet gears 16-3 and the sun gear 16-2 move relatively, and an inner ring gear 22-1 is arranged on the inner side of the right hub shell 22 and is meshed with the planet gears 16-3 to form a transmission relation. A right return spring 15 is provided between the right bearing 14 and the sun gear 16-2. The right pull rod 20 is fixedly connected with the right bearing 14 and passes through the sun gear 16-2, an inner hole of the right hub shell 22 and the like to extend out of the right end surface of the axle 9. Convex teeth are arranged on the left end face and the right end face of the right sliding ring 13, and concave holes in the locking ring 12 are matched with the convex teeth on the right sliding ring 13; the outer surface of the right slip ring 13 is provided with a flange, an inner hole of the spring brake end 7-2 is provided with a sliding groove, and the sliding groove and the flange are designed in a matched mode; the gear rack 16-1 is provided with a concave hole and is designed to be matched with the convex teeth on the right slip ring 13. The spring 7 is fixedly connected with the lock ring 12 through the right slip ring 13 after the right slip ring 13 slides leftwards and is combined with the lock ring 12, and the spring 7 is in transmission relation with the right hub shell 22 through the right slip ring 13, the gear carrier 16-1, the planet wheel 16-3, the internal gear 22-1 after the right slip ring 13 slides rightwards and is combined with the gear carrier 16-1. Wear-resisting rings are arranged on the opposite surfaces of the clockwork spring shell 6, the left hub shell 1 and the right hub shell 22, and wear-resisting rings are arranged on the opposite surfaces of the lock ring 12, the clockwork spring shell 6 and the clockwork spring brake end 7-2.

The carrier 16-1 connected with the planet wheel 16-3 is also arranged at the right side of the sun wheel 16-2, and a bearing is arranged in an inner hole of the gear sliding ring 18 and is sleeved on the axle 9 in a sliding way. A range return spring 17 is disposed between the range ring 18 and the sun gear 16-2. The gear locking ring 19 is fixedly arranged at the inner hole of the right hub shell 22 and is positioned at the right side of the gear sliding ring 18. The gear carrier 16-1 is provided with a concave hole, the gear locking ring 19 is provided with a concave hole, the gear sliding ring 18 is provided with convex teeth, and the convex teeth and the concave hole are designed in a matching mode. The gear slide ring 18 is combined with the gear lock ring 19 under the elastic force of the gear return spring 17, and then the gear slide ring 18 and the right hub shell 22 form a transmission relationship through the gear lock ring 19. The gear slide ring 18 overcomes the resistance of the gear return spring 17 and is combined with the gear carrier 16-1, and then the gear slide ring 18 forms a transmission relationship with the right hub shell 22 through the gear set 16. The inner hole and the outer surface of the transmission ring 21 are both provided with bearings, and the transmission ring 21 is arranged on the right side of the inner hole gear locking ring 19 of the right hub shell 22. The transmission ring 21 and the gear return spring 17 are provided with a steep inclined surface and a gentle inclined surface in a matching manner, the inclined surface penetrates through an inner hole of the gear lock ring 19, the right part of the transmission ring 21 extends out of the right hub shell 22, a ratchet wheel is sleeved in a shaft hole of the chain wheel 23, and the ratchet wheel is fixedly connected with the transmission ring 21. The left hub shell 1 and the right hub shell 22 are fixedly connected.

The process of the energy recovery and the self speed change of the hub is as follows: in the original state, the left slip ring 10 slides to the right under the action of the left return spring to be combined with the lock ring 12, namely, the starting end 7-1 of the spring is fixedly connected with the axle 9 through the spring shell 6, the left slip ring 10 and the lock ring 12. The right slip ring 13 slides leftwards under the action of the right return spring 15 to be combined with the locking ring 12, namely, the braking end 7-2 of the spring is fixedly connected with the axle 9 through the right slip ring 13 and the locking ring 12. The spring 7 is now in the stored or original state.

The shift sliding ring 18 slides rightwards under the action of the shift return spring 17 to be combined with the shift locking ring 19, namely, the chain wheel 23 forms a transmission relation with the right hub shell 22 through the transmission ring 21, the shift sliding ring 18, the shift locking ring 19, and the hub is in a high-speed state.

When the brake is needed, the right pull rod 20 is pulled to slide rightwards, and the right slip ring 13 overcomes the elastic force of the right return spring 15 and is combined with the gear rack 16-1 under the acting force of the pull rod 20; namely, the braking end 7-2 of the spiral power spring forms a transmission relationship with the right hub shell 22 through the right slip ring 13, the gear carrier 16-1, the planet wheel 16-3, the internal gear 22-1. At the same time, the position relation of other parts is unchanged, the kinetic energy of the forward rotation of the wheel can be rapidly transmitted to the clockwork spring 7 to drive the clockwork spring 7 to contract, and the kinetic energy of the rotation of the wheel is converted into the potential energy of the clockwork spring 7 to be stored and brake the wheel. When the brake is finished, the right pull rod 20 is released, the right slip ring 13 slides leftwards under the action of the right return spring 15 to be combined with the lock ring 12, and the spring is in an energy storage state.

When the vehicle is started, the left pull rod 8 is pulled to slide leftwards, the left slip ring 10 slides leftwards under the action of the left pull rod 8 and overcomes the elasticity of the left return spring to be combined with the ratchet wheel 4, namely, the starting end 7-1 of the clockwork spring forms a transmission relation with the left hub shell 1 through the clockwork spring shell 6, the left slip ring 10 and the ratchet wheel 4. At the moment, the position relation of other parts is not changed, and the wheel rotates forwards under the driving of the potential energy of the clockwork spring 7. When the starting is completed, the left pull rod 8 is released, the left slip ring 10 slides to the right under the action of the left return spring to be combined with the locking ring 12, and the hub is in the original state. When the left slip ring 10 cannot be reset in time after starting, the ratchet 4 plays a role in separating the wheel from the transmission of the left slip ring 10, and prevents the clockwork spring 7 from being extruded reversely to hinder starting. The spring shell 6 is provided with the slipping teeth, so that even if the ratchet 4 is damaged, the spring 7 can be prevented from being extruded reversely under the action of the slipping teeth to block starting and protect the spring 7 when the left slip ring 10 cannot be reset in time after starting; when the braking distance is too long and exceeds the maximum limit of the spring 7, the spring 7 can be prevented from breaking through the action of the sliding teeth.

When the vehicle runs and meets large resistance and the resistance exceeds the gear return spring 17, the inclined plane at the joint of the transmission ring 21 and the gear sliding ring 18 is dislocated, and the slow inclined plane is separated from the steep inclined plane and is still combined together under the acting force of the gear return spring 17 after the steep inclined plane is dislocated. The position relation of other parts is unchanged, the gear sliding ring 18 overcomes the elasticity of the gear return spring 17 to slide leftwards and is combined with the gear frame 16-1 when the steep inclined plane relatively moves, and at the moment, after the gear is changed, the vehicle is switched from a high-speed gear to a low-speed gear; the vehicle forward speed slows down and the forward torque increases. When the resistance of the vehicle in the process of advancing is reduced, the elastic force of the gear return spring 17 pushes the gear slide ring 18 to slide rightwards to be combined with the gear lock ring 19, and the vehicle is switched from a low gear to a high gear.

Example two: a energy-recovery hub does not comprise a gear return spring 17, a gear sliding ring 18, a gear locking ring 19, a right pull rod 20 and a transmission ring 21 which are described in the first embodiment. The hub bearing 2 is respectively arranged in the shaft holes of the left hub shell 1 and the right hub shell 22 and then sleeved on the axle 9, and the left hub shell 1 is fixedly connected with the right hub shell 22. A ratchet wheel is sleeved in the shaft hole of the chain wheel 23 and fixedly connected with the right hub shell 22. The rest is as described in the first embodiment.

Example three: a self-speed-changing hub comprises a left hub shell 1, a right hub shell 22, a hub bearing 2, an axle 9, a chain wheel 23, a gear set 16, a gear return spring 17, a gear sliding ring 18, a gear locking ring 19 and a transmission ring 21. The hub bearing 2 is respectively arranged in the shaft holes of the left hub shell 1 and the right hub shell 22 and then sleeved on the axle 9, and the left hub shell 1 is fixedly connected with the right hub shell 22. The gear set 16 comprises a gear carrier 16-1, a sun gear 16-2 and planet gears 16-3, the sun gear 16-2 is fixed on the axle 9, the planet gears 16-3 are arranged on the sun gear 16-2 to form meshing transmission, and the gear carrier 16-1 is connected with the planet gears 16-3 to form a relation of relative movement of the planet gears 16-3 and the sun gear 16-2. The inner side of the right hub shell 22 is provided with an internal gear 22-1) and forms a transmission relation after being meshed with the planet wheels 16-3. A bearing is arranged in an inner hole of the gear sliding ring 18 and is sleeved on the axle 9 in a sliding mode. The gear return spring 17 is arranged between the gear sliding ring 18 and the sun gear 16-1, and the gear locking ring 19 is fixedly arranged at the inner hole of the right hub shell 22 and is positioned at the right side of the gear sliding ring 18. The gear carrier 16-1 is provided with concave holes, the gear locking ring 19 is provided with concave holes, the gear sliding ring 18 is provided with convex teeth, and the convex teeth and the concave holes are designed in a matched mode. The gear slide ring 18 is combined with the gear lock ring 19 under the elastic force of the gear return spring 17, then the gear slide ring 18 forms a transmission relation with the right hub shell 22 through the gear lock ring 19, and the gear slide ring 18 overcomes the resistance of the gear return spring 17, and then the gear slide ring 18 is combined with the gear carrier 16-2, and then the gear slide ring 18 forms a transmission relation with the right hub shell 22 through the gear set 16. The hole and the surface of driving ring 21 all set up bearing and driving ring 21 and set up in the right side of the hole gear catch 19 of right side flower-drum shell 22, and the cooperation design has steep inclined plane and gentle inclined plane and the hole department that gear catch 19 was worn to locate on driving ring 21 and gear reset spring 17, and outside right part of driving ring 21 stretched out right flower-drum shell 22, the ratchet was equipped with to the cover in the shaft hole of sprocket 23, ratchet and driving ring 21 fixed connection. The rest is as described in the first embodiment.

Example four: the combination of the left sliding ring 10 and the ratchet wheel 4, the combination of the left sliding ring 10 and the locking ring 12, the combination of the locking ring 12 and the right sliding ring 13, the combination of the right sliding ring 13 and the gear frame 16-1, the combination of the gear sliding ring 18 and the gear frame 16-1 and the combination of the gear sliding ring 18 and the gear locking ring 19 all adopt the combination of friction disks. The remainder as described in any one of embodiments one to three.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a resilience and self-changing flower-drum, its contains left flower-drum shell (1), right flower-drum shell (22), flower-drum bearing (2), axletree (9), sprocket (23), its characterized in that: the spring type ratchet wheel mechanism further comprises a spring shell (6), a spring (7), a ratchet wheel (4), a ratchet wheel bearing (5), a left pull rod (8), a left sliding ring (10), a left bearing (11), a lock ring (12), a right sliding ring (13), a right bearing (14), a right pull rod (20) and a gear set (16); the hub bearings (2) are respectively arranged in shaft holes of the left hub shell (1) and the right hub shell (22) and then sleeved on the axle (9), and the left hub shell (1) is fixedly connected with the right hub shell (22); the ratchet wheel bearing (5) is arranged in a shaft hole of the left hub shell (1), sleeved on the axle (9) and positioned on the inner side of the hub bearing (2), and the ratchet wheel (4) is sleeved on the ratchet wheel bearing (5) and fixedly connected with the left hub shell (1); the left bearing (11) is arranged on the axle (9) in a sliding manner and positioned on the right side of the ratchet bearing (5), the left sliding ring (10) is sleeved on the left bearing (11), and the left pull rod (8) is fixedly connected with the left bearing (11) and penetrates through inner holes of the ratchet bearing (5) and the hub bearing (2) to extend out of the left end face of the axle (9); the clockwork spring shell (6) is sleeved on the left slip ring (10), and after the left slip ring (10) slides leftwards and is combined with the ratchet wheel (4), the clockwork spring shell (6) forms a transmission relation through the left slip ring (10), the ratchet wheel (4) and the left hub shell (1); the locking ring (12) is fixed on the axle (9) and positioned on the right side of the left bearing (11), and the spring brake end (7-2) forms a fixed relation with the locking ring (12) through the left sliding ring (10) after the left sliding ring (10) slides rightwards and is combined with the locking ring (12); the right bearing (14) is slidably sleeved on the axle (9) and positioned on the right side of the locking ring (12), the right sliding ring (13) is sleeved on the right bearing (14), and the right pull rod (20) is fixedly connected with the right bearing (14) and penetrates through inner holes of the sun gear (16-2) and the hub bearing (2) to extend out of the right end face of the axle (9); the clockwork spring (7) is arranged in the clockwork spring shell (6), the starting end (7-1) of the clockwork spring is fixed on the clockwork spring shell (6), and the braking end (7-2) of the clockwork spring is sleeved on the right slip ring (13); the gear set (16) is fixed on the axle (9) and positioned on the right side of the right bearing (14), the gear set (16) comprises a gear rack (16-1), a sun gear (16-2) and planet gears (16-3), the sun gear (16-2) is fixed on the axle (9), the planet gears (16-3) are arranged on the sun gear (16-2) to form meshing transmission, the gear rack (16-1) is connected with the planet gears (16-3) to form a relation that the planet gears (16-3) and the sun gear (16-2) move relatively, and the inner side of the right hub shell (22) is provided with an internal meshing gear (22-1) which is meshed with the planet gears (16-3) to form a transmission relation; the right slip ring (13) slides leftwards to be combined with the lock ring (12), the spring (7) forms a fixed relation with the lock ring (12) through the right slip ring (13), and the right slip ring (13) slides rightwards to be combined with the gear rack (16-1), and the spring (7) forms a transmission relation with the right hub shell (22) through the right slip ring (13), the gear rack (16-1), the planet gear (16-3), the internal gear (22-1); a ratchet wheel is sleeved in the shaft hole of the chain wheel (23) and fixedly connected with the right hub shell (22).

2. A reversible and self-shifting hub as claimed in claim 1, wherein: wear-resisting rings are arranged on the opposite surfaces of the clockwork spring shell (6) and the left and right hub shells (1, 22), and wear-resisting rings are arranged on the opposite surfaces of the lock ring (12) and the clockwork spring shell (6) and the clockwork brake end (7-2).

3. A reversible and self-shifting hub as claimed in claim 1, wherein: a spacing ring (3) is arranged between the hub bearing (2) and the ratchet bearing (5), a left return spring is arranged between the ratchet bearing (5) and the left bearing (11), and a right return spring (15) is arranged between the right bearing (14) and the sun gear (16-2).

4. A reversible and self-shifting hub as claimed in claim 1, wherein: the clockwork spring shell (6) comprises a shell disc (6-2) and a shell ring (6-1), and a connecting part of the shell disc (6-2) and the shell ring (6-1) is provided with a slipping tooth.

5. A self-energizing and self-changing hub as claimed in claim 1, wherein the axle (9) is provided with a U-shaped groove, and the inner rings of the left bearing (11) and the right bearing (14) are matched with the axle (9) to form a U-shaped flange, and the flange can freely slide in the groove.

6. A self-energizing and self-shifting hub according to any one of claims 1 to 5, wherein: a concave hole is formed in the right end face of the ratchet wheel (4), convex teeth are formed in the left end face and the right end face of the left sliding ring (10), and the concave hole in the ratchet wheel (4) and the convex teeth in the left sliding ring (10) are designed in a matched mode; a chute is arranged in an inner hole of the clockwork spring shell (6), a flange is arranged on the outer surface of the left slip ring (10), and the chute and the flange are designed in a matching way; concave holes are formed in the left end face and the right end face of the locking ring (12), convex teeth are formed in the left end face and the right end face of the right sliding ring (13), and the concave holes in the locking ring (12) are matched with the convex teeth on the left sliding ring (10) and the right sliding ring (13); a flange is arranged on the outer surface of the right slip ring (13), a sliding groove is arranged in an inner hole of the spring brake end (7-2), and the sliding groove and the flange are designed in a matched mode; the gear rack (16-1) is provided with a concave hole and is designed to be matched with a convex tooth on the right sliding ring (13).

7. A self-energizing and self-shifting hub according to any one of claims 1 to 5, wherein: the gear shifting mechanism is characterized by further comprising a gear shifting reset spring (17), a gear shifting sliding ring (18), a gear shifting lock ring (19) and a transmission ring (21), a gear carrier (16-1) connected with the planet gear (16-3) is also arranged on the right side of the sun gear (16-2), a bearing is arranged in an inner hole of the gear shifting sliding ring (18) and is slidably sleeved on the axle (9), the gear shifting reset spring (17) is arranged between the gear shifting sliding ring (18) and the sun gear (16-2), the gear shifting lock ring (19) is fixedly arranged on the inner hole of the right hub shell (22) and is positioned on the right side of the gear shifting sliding ring (18), the gear shifting sliding ring (18) is combined with the gear shifting lock ring (19) under the elastic force of the gear shifting reset spring (17), and then the gear shifting sliding ring (18) forms a transmission relation with the right hub shell (22) through the gear shifting lock ring (19), and then the gear shifting sliding ring (18) is combined with the gear ) Form the transmission relation with right flower-drum shell (22), the hole and the surface of transmission ring (21) all set up bearing and transmission ring (21) and set up in the right side of hole gear catch (19) of right flower-drum shell (22), cooperation design has the hole department that gear catch (19) were worn to locate in steep inclined plane and gentle inclined plane and inclined plane on transmission ring (21) and gear reset spring (17), the right part of transmission ring (21) stretches out outside right flower-drum shell (22), the ratchet is equipped with to the axle hole endotheca of sprocket (23), ratchet and transmission ring (21) fixed connection.