CN106275230A

CN106275230A - Flywheel for vehicle

Info

Publication number: CN106275230A
Application number: CN201610163860.6A
Authority: CN
Inventors: 陈庆函; 陈恺贝
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-06-29
Filing date: 2016-03-22
Publication date: 2017-01-04
Anticipated expiration: 2036-03-22
Also published as: CN106275230B; TW201700345A; TWI610844B

Abstract

A flywheel for vehicle comprises a hollow intermediate penetrating member and a plurality of fluted discs, wherein the fluted discs penetrate and are fixed outside the intermediate penetrating member and are arranged in sequence according to the size of the outer diameter; the middle penetrating sleeve is provided with a combination hole at the end of the fluted disc with the minimum outer diameter; the tail end gear is arranged outside the combining hole, a center hole is formed in the circle center of the tail end gear, the tail end gear faces a combining end of the combining hole and is embedded into the combining hole, the combining end and the combining hole are combined and fixed through a combining means, and the tail end gear can be limited by the combining means to be linked with the medium penetrating sleeve piece together. Therefore, the tail end gear is not sleeved outside the medium penetrating sleeve piece in a penetrating mode, the outer diameter of the tail end gear is smaller, the gear ratio is improved, and the speed of the bicycle is increased.

Description

Flywheel in vehicle

[technical field]

The present invention provides a kind of flywheel in vehicle, and a kind of end gear overall diameter making this flywheel is less, increases car The gear ratio of son, to improve the flywheel in vehicle structure riding speed.

[background technology]

The flywheel of bicycle is connected with the wheel hub of trailing wheel, connects flywheel and front fluted disc with chain, via trampling foot-operated strip Dynamic nipper disc spins, through chain-driving flywheel and rear wheel, makes bicycle advance.This flywheel is mainly by a plurality of overall diameters Large and small fluted disc and a ratchet of the different number of teeth of different and coupling are constituted, and this ratchet makes the large and small fluted disc can only be to one-directional rotation Can not reverse, this large and small fluted disc is ordered arrangement from large to small.Rider can be via being fixed on hands the two of position, the left and right sides Variator before and after the control of individual gearshift knob, changes the gear ratio between the fluted disc of front fluted disc and flywheel, and then weight power is trampled in adjustment Or speed.But, each fluted disc of known lock dentition formula or cassette flywheel is adopted and is set on the mode wearing on axle of ratchet and adjoins Fixing, the trepanning interior diameter in the middle of the fluted disc of this minimum is because being limited can not be reduced by this overall diameter wearing axle, and therefore this flies The minimum fluted disc of wheel by above-mentioned limitation cannot do less, on the whole general minimum fluted disc is 14 teeth, and the most minimum is found 11 Tooth, even if but this minimum fluted disc only 11 tooth, needed for still can not meeting functional small wheel bicycle rider.Though occurring 7 teeth recently, But non-lock dentition formula, this flywheel structure is to adopt unilateral bearing structure, and the flywheel structure using ratchet configuration from the present invention is different, the most mutually Incompatible.In consideration of it, applicant proposes present patent application.

[summary of the invention]

It is an object of the invention to provide a kind of end gear overall diameter making this flywheel less, increase the gear of car Ratio, improves the flywheel in vehicle structure riding speed.

For reaching above-mentioned purpose, the method is mainly characterized in that and wear, in an intermediary, the fluted disc end that part configuration overall diameter is minimum It is provided with a combined hole；Separately having an end gear, this end gear is located at outside this combined hole, and the center of circle of this end gear sets Putting a centre bore, this terminal teeth wheel face, to a binding end of this combined hole, embeds in this combined hole, between this binding end and combined hole With one engagement means combine, and this engagement means can limit this end gear wear part with this intermediary together with interlock, thus this end End tooth wheel is not set on this intermediary and wears outside part, and the overall diameter making this end gear is less, to improve gear ratio, promotes car Speed.

By technical scheme, details are as follows below:

A kind of flywheel in vehicle, the intermediary including a hollow form wears part and large and small fluted disc group, and this large and small fluted disc group wears And be fixed on this intermediary and wear outside part, the large and small fluted disc forming this large and small fluted disc group is to set according to overall diameter size sequential Put；It is characterized in that:

This intermediary wears this small tooth plate end that part configures this overall diameter minimum and is provided with a combined hole；Separately there is a terminal teeth Wheel, this end gear is located at outside this combined hole, and the center of circle of this end gear arranges a centre bore, and this terminal teeth wheel face is to this knot Close a binding end in hole, embed in this combined hole, be combined with an engagement means between this binding end with combined hole and fixing, and this knot Conjunction means limit this end gear wear part with this intermediary together with interlock, thus the overall diameter of this end gear is not worn by this intermediary The overall diameter of external member limits and diminishes.

Wherein, this combined hole is a screw, and the binding end of this end gear is a threaded section, and this by threaded combines hands Section, wears part by this end gear with this intermediary and is combined.

Wherein, between this binding end with combined hole, engagement means with plug-in is combined.

Wherein, also include that a ratchet, described intermediary wear part, have one first to wear in the axial projection respectively of the center of circle two side position Sleeve and one second wears axle；This first and second outer peripheral face respectively one first section of wearing and one second section of wearing wearing axle, should First and second section of wearing is a concavo-convex ratchet structure, and the teeth groove of this ratchet structure is axially extending setting；This first and second wears axle End face be respectively provided with one first screw and aforementioned combined hole；First axle and this second intermediary wearing between axle is worn at this Wear part outer wall and have intermediary's fluted disc to evagination；

This ratchet, has an axis hole, and this axis hole is provided with internal screw thread adjacent to a hub end, with a wheel hub one end set by One facing combines connection in lock tooth mode；The other end hole wall of this axis hole has a ratchet inwall, and the teeth groove of this ratchet inwall is Axially arranged；This ratchet wears part end towards this intermediary and is outward extended with one first threaded section, this first threaded section with this first Screw is spirally connected；

This large fluted disc group, is set on this and first wears outside axle, by a plurality of large fluted discs more than this intermediary's fluted disc overall diameter Composition is adjoined with concentric circular；This each large fluted disc, according to overall diameter size sequential, is provided with between one between every two these large fluted discs Spacer ring separates；The centre bore aperture of such large fluted disc is to coordinate with this first overall diameter wearing axle, and the center of this large fluted disc It is the configuration of axially extended ratchet that the inwall in hole coordinates the ratchet structure of this first section of wearing also to do teeth groove；

This small tooth plate group, is set on this and second wears outside axle, by a plurality of small tooth plates less than this intermediary's fluted disc overall diameter Composition is adjoined with concentric circular；This each small tooth plate, according to overall diameter size sequential, is provided with between one between every two these small tooth plates Spacer ring separates, and the fluted disc overall diameter size of this small tooth plate group and aforementioned large fluted disc group is in forward arranging；The center of such small tooth plate Aperture, hole second wears axle overall diameter with this and coordinates, and the inwall of the centre bore of this small tooth plate coordinates the ratchet of this second section of wearing Structure also does the configuration of teeth groove axially extended ratchet.

Wherein, the projection that faces out in week in binding end one position of this end gear has a baffle ring, should via this baffle ring Small tooth plate group end is fixed side and is pushed away fixing.

Wherein, it is provided with a spacer ring between last fluted disc of this end gear and this small tooth plate group.

Wherein, the axis hole of this ratchet, corresponding to the aperture of this ratchet inner wall position, is equal or less than this end gear Centre bore aperture.

Wherein, this flywheel be combined with wheel hub after axis hole after being passed by an axletree, be positioned at the axletree of this end gear end Being coated with outward the sleeve of a hollow form, this sleeve stretches into the end contact of this flywheel inside end and this wheel hub, and the other end stretches out this Outside end gear, the nut packing that this other end is locked on this axletree facing by again.

Wherein, between the maximum fluted disc of this ratchet and this large fluted disc group, wear a gear chain sheet.

Advantage of the present invention and effect are that this end gear is not set on this intermediary and wears outside part, make this end gear Overall diameter is less, improves gear ratio, promotes the speed of car.

[accompanying drawing explanation]

It it is axonometric chart after the flywheel of the embodiment of the present invention is connected with the wheel hub of trailing wheel shown in Fig. 1.

It it is the cut-away section front view after the flywheel of the embodiment of the present invention is connected with the wheel hub of trailing wheel shown in Fig. 2.

It it is the axonometric chart after the flywheel of the embodiment of the present invention is connected with wheel hub shown in Fig. 3.

It it is the flywheel exploded perspective view of the embodiment of the present invention shown in Fig. 4.

It it is the flywheel exploded perspective view of another angle of the embodiment of the present invention shown in Fig. 5.

It is flywheel and the wheel hub assembled sectional view of the embodiment of the present invention shown in Fig. 6.

It it is the axonometric chart to be separated of flywheel and the wheel hub of the embodiment of the present invention shown in Fig. 7.

It it is the sectional view to be separated of flywheel and the wheel hub of the embodiment of the present invention shown in Fig. 8.

In figure, label is described as follows:

Trailing wheel 2 wheel hub 20 wheel hub one end 21 facing 210

Axletree 22 sleeve 220 nut 221 flywheel 1

Intermediary wears part 10 first and wears axle 100 second and wear axle 101 first section of wearing 102

First screw 103 second section of wearing 104 second screw (screw) 105 combined hole 1050

Intermediary's fluted disc 106 ratchet structure 107 ratchet 11 first baffle ring 110

First threaded section 111 groove 112 axis hole 113 internal screw thread 114

Ratchet inwall 115 large fluted disc group 12 large fluted disc 120a, 120b spacer ring 121

Centre bore 122 keeps off chain sheet 123 small tooth plate group 13

Small tooth plate 130a, 130 b spacer ring 131 centre bore 132 end gears 14

Second threaded section (threaded section) 140 binding end 1400 spacer ring 141

Centre bore 142 second baffle ring (baffle ring) 143 extracting tool 30 engagement means 1A

[detailed description of the invention]

Please refer to shown in Fig. 1-5, the flywheel 1 of the present invention is the wheel being applied to lock dentition formula with a bicycle rear 2 As a example by facing 210 locking of hub 20 one end 21, after this flywheel 1 is combined with wheel hub 20, axis hole is passed by an axletree 22 again, this axletree The two ends of 22 are fixed with vehicle frame again.This flywheel 1 comprises:

One intermediary wears part 10, and as illustrated in figures 4-5, for hollow form, both sides are distinguished the most axially outwardly projection and are hollow form One first wears axle 100 and one second wears axle 101, and this first and second axle center wearing axle 100,101 wears part 10 with this intermediary Axle center overlap.This first and second outer peripheral face respectively one first section of wearing 102 and one second section of wearing wearing axle 100,101 104, this first and second section of wearing 102,104 is the ratchet structure 107 of a concavo-convex rule match, and the teeth groove of this ratchet structure 107 is Axially extending setting.This first and second end face wearing axle 100,101 is respectively provided with one first screw 103 and one second screw 105.This intermediary wears has intermediary's fluted disc 106 to evagination in the middle of part 10, and this intermediary's fluted disc 106 can be worn with this intermediary with threaded External member 10 is fixed, or to wear part 10 one-body molded with this intermediary.

One ratchet 11, as illustrated in figures 4-5, has one first baffle ring 110, and this first baffle ring 110 wears part 10 towards this intermediary Holding axially extending has one first threaded section 111, and this first threaded section 111 can be spirally connected with this first screw 103, this first baffle ring The side face of 110 has plurality of grooves 112, is available for a clamping device and clamps and drive the first threaded section rotating this ratchet 11 111 are spirally connected with this first screw 103 or separate.This ratchet 11 has an axis hole 113, and this axis hole 113 is adjacent to aforementioned wheel hub 20 one end 21 are provided with internal screw thread 114, to be combined connection with the facing 210 of aforementioned wheel hub 20 one end 21 in lock tooth mode；Another opposite end Axis hole 113 hole wall there is the ratchet inwall 115 that teeth groove is axially arranged, in order to engage (as shown in Figure 8) with an extracting tool 30.

One large fluted disc group 12, as illustrated in figures 4-5, is more than a plurality of large fluted discs of intermediary's fluted disc 106 with one heart by overall diameter Circle adjoins composition, and is set in this and first wears on axle 100.Form large fluted disc 120a, 120b of this large fluted disc group 12 ... etc., depend on According to this large fluted disc overall diameter size sequential, it is provided with a spacer ring 121 between these every two fluted disc 120a, 120b and separates.Such Centre bore 122 aperture of fluted disc 120a, 120b is to wear axle 100 with first to coordinate, and the hole wall of this centre bore 122 coordinate this The ratchet structure of one section of wearing 102 also does the configuration of teeth groove axially extended concavo-convex ratchet.This large fluted disc group 12 be set on this first After wearing on axle 100, and after wearing a gear chain sheet 123, then by the first threaded section 111 and the first screw 103 spiral shell of this ratchet 11 Gu, this large fluted disc group 12 will be fixed on this intermediary and wear the first of part 10 and wear on axle 100, wear part 10 consubstantiality with this intermediary Interlock.

One small tooth plate group 13, as illustrated in figures 4-5, is less than a plurality of small tooth plates of intermediary's fluted disc 106 with one heart by overall diameter Circle adjoins composition, and is set in this and second wears on axle 101.Form small tooth plate 130a, 130b of this small tooth plate group 13 .... etc. Deng, according to this small tooth plate overall diameter size sequential, it is provided with a spacer ring 131 between every two small tooth plate 130a, 130b and separates. Centre bore 132 aperture of such small tooth plate 130a, 130b wears axle 101 with second and coordinates, and the inwall of this centre bore 132 coordinates The ratchet structure of this second section of wearing 104 also does the configuration of teeth groove axially extended ratchet.This small tooth plate group 13 be set on second When wearing on axle 101, with the fluted disc overall diameter size of aforementioned large fluted disc group 12 in forward arranging, i.e. according to overall diameter size sequentially Arrangement.

One end gear 14, as illustrated in figures 4-5, is located at outside this small tooth plate group 13, second wears axle 101 end towards this and is Axially extending have one second threaded section 140, and the projection that faces out in week in this second threaded section 140 1 position has a ring second Baffle ring 143 (baffle ring 143), this second threaded section 140 is spirally connected with this second second screw 105 wearing axle 101, and (i.e. one has thread Section 140, another has screw 105), thus, this end gear 14 second can wear axle 101 axle head with this and fixes, and by this second Above-mentioned small tooth plate group 13 end side is pushed tight and is fixed on second and wears on axle 101 (as shown in Figure 6) by baffle ring 143.This end Also a spacer ring 141 it is provided with between last fluted disc 130b of gear 14 and this small tooth plate group 13, empty using the receiving as chain Between.The center of circle of this end gear 14 is provided with a centre bore 142, and this centre bore 142 passes for this axletree 22.This end gear 14 Each tooth equivalent radiated projection by the side face of this second threaded section 140, second wear axle because this end gear 14 is not set on this On 101, not limited by this second overall diameter wearing axle 101, therefore the overall diameter of this end gear 14 can be less, the tooth of Boulez Number is less, to increase the gear ratio of car.

To lock tooth after above-mentioned flywheel 1 is completed and by the facing 210 of the screw 114 of this ratchet 11 and wheel hub 20 one end 21 Formula locks, i.e. as shown in Fig. 1-3 and Fig. 6.Behind the center of the coalition that this axletree 22 passes this flywheel 1 and wheel hub 20, it is positioned at this The axletree 22 of end gear 14 end is coated with a hollow sleeve 220, and this sleeve 220 stretches into flywheel 1 inside end and this wheel hub 20 end Portion abuts against, and the other end stretches out this outer predetermined length (such as 1-3mm) of end gear 14, then with a nut 221 and axletree 22 Facing is spirally connected and by this sleeve 220 end packing, makes this predetermined length can be as the receiving space of chain, and this sleeve 220 Leave a suitable space between the inwall of the centre bore 142 of outer wall and this end gear 14, it is to avoid this flywheel 1 when riding stress and When causing the most eccentric, the inwall of the centre bore 142 of this end gear 14 produces with the outer wall of this sleeve 220 and touches, and should The suitably existence in space, in time disassembling this flywheel 1 and separate with wheel hub 20, the extracting tool 30 being also available for this hollow form passes in and out.

The axis hole 113 of aforementioned ratchet 11 is positioned at the aperture of this ratchet inwall 115 position, is equal or less than this end gear Centre bore 142 aperture of 14, is intended to the combination removing between the facing 210 of this flywheel 1 and wheel hub 20 one end 21, as Figure 7-8, first Nut 221 is moved back in rotation, and takes out sleeve 220, and the hollow extracting tool 30 holding one end appearance mask ratchet face 31 stretches into this end End tooth wheel 14 centre bore 142 hole in and extend into the end, this extracting tool 30 end can hit against the end of this wheel hub 20 one end 21 Portion, the ratchet face 31 of this extracting tool 30 just engages with the ratchet inwall 115 of this ratchet 11, therefore rotates extracting tool 30 Drive this ratchet 11 consubstantiality to interlock, make the internal screw thread 114 of this ratchet 11 depart from the facing 210 of aforementioned wheel hub 20 one end 21, as This, this flywheel 1 can be disassembled with wheel hub 20 and separate.

Secondly, above-mentioned end gear 14 and this intermediary wear part 10 and configure the combination between small tooth plate group 13 end, except Above-mentioned be combined with lock dentition formula engagement means with the second threaded section 140 and the second screw 105 outside, also can wear part 10 in this intermediary and join Put small tooth plate group 13 end and one combined hole 1050 (i.e. this second screw 105 is with this combined hole 1050 replacement), this end gear are set The binding end 1400 of 14 also can change the structure matched into, can embed in this combined hole 1050, this binding end 1400 and combined hole Combine with the engagement means 1A of plug-in and fixing between 1050, and this end gear 14 and this intermediary wear after part 10 clamping can one Rise interlock and without departing from, also can reach identical combination effect.

According to upper, the end gear 14 of the present invention wears the second of part wear on axle 101 because not being set on this intermediary, therefore should The centre bore 142 of end gear 14 is not limited by this second overall diameter wearing axle 101, the therefore overall diameter of this end gear 14 Diminishing, relative tooth counts is less.As each graphic shown in, end gear 14 number of teeth of the present invention can be 8 teeth, more conventional most end fluted disc The number of teeth being 11 teeth or 14 teeth is less, can increase the gear ratio of car.

Claims

1. a flywheel in vehicle, the intermediary including a hollow form wears part and large and small fluted disc group, this large and small fluted disc group wear and Being fixed on this intermediary and wear outside part, the large and small fluted disc forming this large and small fluted disc group is to arrange according to overall diameter size sequential； It is characterized in that:

This intermediary wears this small tooth plate end that part configures this overall diameter minimum and is provided with a combined hole；Separately there is an end gear, This end gear is located at outside this combined hole, and the center of circle of this end gear arranges a centre bore, and this terminal teeth wheel face is to this combination One binding end in hole, embeds in this combined hole, is combined with an engagement means and fixing between this binding end with combined hole, and this combination Means limit this end gear wear part with this intermediary together with interlock, thus the overall diameter of this end gear is not worn by this intermediary The overall diameter of part limits and diminishes.

Flywheel in vehicle the most according to claim 1, it is characterised in that: this combined hole is a screw, the knot of this end gear Closing end is a threaded section, by this engagement means of threaded, with this intermediary, this end gear is worn part and is combined.

Flywheel in vehicle the most according to claim 1, it is characterised in that: with the combination of plug-in between this binding end and combined hole Means combine.

4. according to the flywheel in vehicle described in claim 1 or 2 or 3, it is characterised in that: also include that a ratchet, described intermediary wear Part, has one first to wear axle and one second in the axial projection respectively of the center of circle two side position and wears axle；This first and second wears outside axle Side face respectively one first section of wearing and one second section of wearing, this first and second section of wearing is a concavo-convex ratchet structure, and this ratchet is tied The teeth groove of structure is axially extending setting；This first and second end face wearing axle is respectively provided with one first screw and aforementioned combined hole；Position First axle is worn and this second intermediary wearing between axle wears part outer wall and has intermediary's fluted disc to evagination in this；

This ratchet, has an axis hole, and this axis hole is provided with internal screw thread adjacent to a hub end, with the tooth set by a wheel hub one end Face combines connection in lock tooth mode；The other end hole wall of this axis hole has a ratchet inwall, and the teeth groove of this ratchet inwall is axial Arrange；This ratchet wears part end towards this intermediary and is outward extended with one first threaded section, this first threaded section and this first screw It is spirally connected；

This large fluted disc group, is set on this and first wears outside axle, by more than this intermediary's fluted disc overall diameter a plurality of large fluted discs with Heart circle adjoins composition；This each large fluted disc, according to overall diameter size sequential, is provided with a spacer ring between every two these large fluted discs Separate；The centre bore aperture of such large fluted disc is to coordinate with this first overall diameter wearing axle, and the centre bore of this large fluted disc It is the configuration of axially extended ratchet that inwall coordinates the ratchet structure of this first section of wearing also to do teeth groove；

This small tooth plate group, is set on this and second wears outside axle, by less than this intermediary's fluted disc overall diameter a plurality of small tooth plates with Heart circle adjoins composition；This each small tooth plate, according to overall diameter size sequential, is provided with a spacer ring between every two these small tooth plates Separating, the fluted disc overall diameter size of this small tooth plate group and aforementioned large fluted disc group is in forward arranging；The centre bore hole of such small tooth plate Footpath second wears axle overall diameter with this and coordinates, and the inwall of the centre bore of this small tooth plate coordinates the ratchet structure of this second section of wearing Also the configuration of teeth groove axially extended ratchet is done.

Flywheel in vehicle the most according to claim 4, it is characterised in that: this end gear is in the side face of binding end one position Outwards projection has a baffle ring, via this baffle ring, this small tooth plate group end is fixed side and pushes away fixing.

Flywheel in vehicle the most according to claim 4, it is characterised in that: this end gear and last tooth of this small tooth plate group A spacer ring it is provided with between dish.

Flywheel in vehicle the most according to claim 4, it is characterised in that: the axis hole of this ratchet corresponds to this ratchet inner wall position Aperture, be equal or less than the centre bore aperture of this end gear.

Flywheel in vehicle the most according to claim 4, it is characterised in that: this flywheel be combined with wheel hub after axis hole in by a car After axle passes, being positioned at the sleeve being coated with a hollow form outside the axletree of this end gear end, this sleeve stretches into this flywheel inside end Abutting against with the end of this wheel hub, the other end stretches out outside this end gear, and this other end is locked on this axletree facing by one again One nut packing.

Flywheel in vehicle the most according to claim 4, it is characterised in that: between the maximum fluted disc of this ratchet and this large fluted disc group, Wear a gear chain sheet.