CN206511066U

CN206511066U - A kind of gear ring center wheel fixes single-wheel and directly drives multi gear fully-automatic gearbox

Info

Publication number: CN206511066U
Application number: CN201621410045.7U
Authority: CN
Inventors: 黄英可
Original assignee: Zhangjiagang Chuansuo Vehicle Industry Co Ltd
Current assignee: Zhangjiagang Chuansuo Vehicle Industry Co Ltd
Priority date: 2016-12-21
Filing date: 2016-12-21
Publication date: 2017-09-22
Anticipated expiration: 2026-12-21

Abstract

Single-wheel, which is fixed, the utility model discloses a kind of gear ring center wheel directly drives multi gear fully-automatic gearbox, including：Central shaft, wheel hub and gear, the gear include two sets of planetary transmissions and at least a set of automatic centrifugation shifter, and the planetary transmission includes：First planetary transmission and the second planetary transmission, first planetary transmission includes the first planet carrier, the first gear ring, the first planetary gear and the first centre wheel, second planetary transmission includes the second planet carrier, the second gear ring, the second planetary gear and the second centre wheel, freewheel clutch is provided between first planet carrier and wheel hub or between the second planet carrier and wheel hub, often covering automatic centrifugation shifter includes：Pallet piece frame, ratchet and at least one pallet piece, the pallet piece set up and are placed in wheel hub, and the ratchet is only arranged at the outside of the second gear ring or while be arranged at the outside of the second gear ring and the second planet carrier, so as to can reduce the requirement to stepping on frequency when medium-to-high grade.

Description

A kind of gear ring center wheel fixes single-wheel and directly drives multi gear fully-automatic gearbox

【Technical field】

The utility model is related to technical field of bicycles, and in particular to it is complete that multi gear is directly driven in a kind of gear ring center wheel fixation single-wheel Automatic transmission.

【Background technology】

Bicycle speed-varying unit is divided into two kinds of internal speed changer and outer speed changer, outer speed changer be use open link chain mechanism for Transmission system, transforms to chain by stirring the selector being installed in front of bicycle and different chains is realized on different flywheels Bar gearratio, because outer speed changer is exposed outside, therefore is easier to get rusty, and is easily disturbed by external force, so through Often periodic maintenance is needed to maintain, internal speed changer mainly using planetary gears as transmission main body, is sealed in inside flower-drum, By multilayer special seal material protection, so rainwater, dust, grease etc. cannot be introduced into, therefore without time-based maintenance, realize and exempt from The advantage of maintenance.The existing following defect of internal speed changer generally existing in the art：1st, hand shift is needed, it is impossible to realize and move certainly Shelves；2nd, when internal speed changer is shifted to top gear, if stepping on frequency in reduction, then speed changer is difficult to hold in top gear.

【Utility model content】

To solve the above problems, the purpose of this utility model is to provide a kind of reduce to stepping on the gear ring center that frequency is required Multi gear fully-automatic gearbox is directly driven in the fixed single-wheel of wheel.

To achieve the above object, the technical scheme that the utility model is taken is：A kind of gear ring center wheel is fixed single-wheel and directly driven Multi gear fully-automatic gearbox, including：Central shaft, wheel hub and the gear being arranged between central shaft and wheel hub, the center Axle is power input, and the wheel hub is power output member, and the gear includes two sets of planetary transmissions and at least a set of Automatic centrifugation shifter, the planetary transmission includes：First planetary transmission and the second planetary transmission, the first row Star speed changer includes the first planet carrier, the first gear ring, the first planetary gear and the first centre wheel, and second planetary transmission includes Second planet carrier, the second gear ring, the second planetary gear and the second centre wheel, first gear ring are mutually fixed with vehicle frame, and described first Planet carrier is integrally formed or is fixedly connected with central shaft, and first centre wheel is sheathed on central shaft, first centre wheel With the second gear ring one sub-assembly of formation, second centre wheel is sheathed on central shaft and mutually fixed with vehicle frame, the first row Freewheel clutch is provided between carrier and wheel hub or between the second planet carrier and wheel hub, often covering automatic centrifugation shifter includes： Pallet piece frame, ratchet and at least one pallet piece, the pallet piece are installed on pallet piece frame, and the pallet piece sets up and is placed in wheel In hub, the ratchet is only arranged on the second gear ring or while is arranged on the second gear ring and on the second planet carrier.

Preferably, a kind of gear ring center wheel in the utility model fixes single-wheel directly to drive multi gear fully-automatic gearbox further It is set to：The automatic centrifugation gearshift also includes at least one STATEMENT OF FEDERALLY SPONSORED, and the pallet piece is installed by the first connector In on ratchet fixed mount, the STATEMENT OF FEDERALLY SPONSORED is installed on ratchet fixed mount by the second connector, the pallet piece and STATEMENT OF FEDERALLY SPONSORED It is set in distance in a circumferential direction, the pallet piece includes：First end, the second end and it is arranged at first end and second Provided with the ratchet being engaged with ratchet at the first installation portion between end, the inwall of the second end of at least one pallet piece Portion, the first installation portion of the pallet piece is provided with the first mounting hole for being used for installing the first connector, and the STATEMENT OF FEDERALLY SPONSORED includes the Three ends, the 4th end and the second installation portion being arranged between the 3rd end and the 4th end, the second peace of the STATEMENT OF FEDERALLY SPONSORED Dress portion is provided with the second mounting hole for being used for installing the second connector, the first end of the pallet piece and/or the 4th of STATEMENT OF FEDERALLY SPONSORED the End is provided with balancing weight, and inner side, the institute of the 4th end of STATEMENT OF FEDERALLY SPONSORED are limited in along the first end of pallet piece described in radial direction The second end for stating pallet piece is limited in the inner side or the 4th end along STATEMENT OF FEDERALLY SPONSORED described in radial direction of the end of STATEMENT OF FEDERALLY SPONSORED the 3rd The inner side that the inner side of pallet piece first end, the 3rd end of the STATEMENT OF FEDERALLY SPONSORED are limited in the second end of pallet piece is limited in, Elastic component for controlling pallet piece initial position is installed on the ratchet fixed mount or in STATEMENT OF FEDERALLY SPONSORED or on pallet piece.

Preferably, a kind of gear ring center wheel in the utility model fixes single-wheel directly to drive multi gear fully-automatic gearbox further It is set to：The automatic centrifugation gearshift also includes at least one STATEMENT OF FEDERALLY SPONSORED, and the pallet piece is installed by the first connector In on ratchet fixed mount, one end of the STATEMENT OF FEDERALLY SPONSORED is flexibly connected with adjacent one of pallet piece, the STATEMENT OF FEDERALLY SPONSORED it is another One end is flexibly connected with another adjacent pallet piece, and the pallet piece and STATEMENT OF FEDERALLY SPONSORED are set in distance in a circumferential direction, The pallet piece includes first end, the second end and the first installation portion being arranged between first end and the second end, institute The first end for stating pallet piece is provided with balancing weight, provided with being engaged with ratchet at the inwall of the second end of at least one pallet piece Ratchet portion, the first installation portion of the pallet piece is provided with the first mounting hole for being used for installing the first connector, the pallet piece Elastic component for controlling pallet piece initial position is installed on frame.

Preferably, a kind of gear ring center wheel in the utility model fixes single-wheel directly to drive multi gear fully-automatic gearbox further It is set to：The elastic component is torsion spring, spring or spring leaf.

Preferably, a kind of gear ring center wheel in the utility model fixes single-wheel directly to drive multi gear fully-automatic gearbox further It is set to：The ratchet fixed mount includes：Several mounting seats that the inwall of circular base portion and certainly circular base portion extends internally, The pallet piece is installed in mounting seat.

Preferably, a kind of gear ring center wheel in the utility model fixes single-wheel directly to drive multi gear fully-automatic gearbox further It is set to：Described the first connector, the second connector are pin.

Preferably, a kind of gear ring center wheel in the utility model fixes single-wheel directly to drive multi gear fully-automatic gearbox further It is set to：The mating surface of the pallet piece and STATEMENT OF FEDERALLY SPONSORED is set in involute shape or arc shaped.

Preferably, a kind of gear ring center wheel in the utility model fixes single-wheel directly to drive multi gear fully-automatic gearbox further It is set to：Connected between first planet carrier and central shaft by spline.

Preferably, a kind of gear ring center wheel in the utility model fixes single-wheel directly to drive multi gear fully-automatic gearbox further It is set to：One end of the central shaft is provided with boss, and bearing or ball, described first are provided between the boss and the first gear ring Be provided with bearing or ball between gear ring and wheel hub, one end of second centre wheel provided with and tight part, second centre wheel with And bearing or ball are provided between tight part, bearing or ball are provided between second centre wheel and wheel hub.

Compared with prior art, the utility model has the advantages that：Gear ring center wheel in the utility model is consolidated Order wheel directly drives that multi gear fully-automatic gearbox compact conformation, easy for installation, transmission efficiency, gear shift be firm, speed change is stable, in addition Speed changer in the utility model can be reduced to stepping on the requirement of frequency when medium-to-high grade, so that it is lighter to ride.

【Brief description of the drawings】

Fig. 1 is that gear ring center wheel fixes the main view that multi gear fully-automatic gearbox is directly driven in single-wheel in the utility model embodiment 1 Structural representation.

Fig. 2 is that gear ring center wheel fixes the decomposition that multi gear fully-automatic gearbox is directly driven in single-wheel in the utility model embodiment 1 Structural representation.

Fig. 3 is the cross section structure diagram along line A-A shown in Fig. 1.

Fig. 4 is the structural representation of the first automatic centrifugation shifter in the utility model embodiment 1.

Fig. 5 is that gear ring center wheel fixes the section view that multi gear fully-automatic gearbox is directly driven in single-wheel in the utility model embodiment 2 Structural representation.

In figure：1st, central shaft, 10, boss, 2, wheel hub, 3, planetary transmission, the 30, first planetary transmission, 300, first Planet carrier, the 301, first gear ring, the 302, first planetary gear, the 303, first centre wheel, the 31, second planetary transmission, 310, second Planet carrier, the 311, second gear ring, the 312, second planetary gear, the 313, second centre wheel, 4, automatic centrifugation shifter, 40, first Automatic centrifugation shifter, the 400, first pallet piece frame, 4000, elastic component, the 401, first pallet piece, 4010, first end, 4011st, the second end, the 4012, first installation portion, 4013, ratchet portion, the 4014, first mounting hole, 4015, balancing weight, 402, One STATEMENT OF FEDERALLY SPONSORED, the 4020, the 3rd end, the 4021, the 4th end, the 4022, second installation portion, the 4023, second mounting hole, 4024, match somebody with somebody Pouring weight, the 403, first ratchet, the 41, second automatic centrifugation shifter, the 410, second pallet piece frame, the 411, second pallet piece, 4110th, balancing weight, 4111, ratchet portion, the 412, second STATEMENT OF FEDERALLY SPONSORED, the 413, second ratchet, 5, freewheel clutch, 50, ratchet, 51, Ratchet, 6 and tight part.

【Embodiment】

Embodiment 1

Join shown in Fig. 1 to Fig. 4, a kind of gear ring center wheel fixes single-wheel and directly drives multi gear fully-automatic gearbox, including：Central shaft 1st, wheel hub 2 and the gear being arranged between central shaft 1 and wheel hub 2, the central shaft are power input, and the wheel hub is Power output member, the gear includes two sets of planetary transmissions 3 and two sets of automatic centrifugation shifters 4.

The planetary transmission 3 includes the first planetary transmission 30 and the second planetary transmission 31, and first planet becomes Fast device 30 includes the first planet carrier 300, the first gear ring 301, the first planetary gear 302 and the first centre wheel 303, second planet Speed changer 31 includes the second planet carrier 310, the second gear ring 311, the second planetary gear 312 and the second centre wheel 313, first tooth Circle 301 is mutually fixed with vehicle frame, is connected between first planet carrier 300 and central shaft 1 by spline, first centre wheel 303 are sheathed on central shaft 1, and first centre wheel 303 is integrally formed with the second gear ring 311,313 sets of second centre wheel Mutually fixed on central shaft 1 and with vehicle frame, freewheel clutch 5 is provided between first planet carrier 300 and wheel hub, it is described super More clutch 5 includes ratchet 50 and ratchet 51, and in the present embodiment, the ratchet 50 is arranged on the first planet carrier 300, spine Wheel 51 is arranged in wheel hub 2, certainly in other implementations, and the ratchet 50 may also set up in wheel hub 2, the ratchet 51 may also set up on the first planet carrier 300, can also realize the utility model.

The automatic centrifugation shifter 4 includes：First automatic centrifugation shifter 40 and the second automatic centrifugation gear shift machine Structure 41, the first automatic centrifugation shifter 40 include the first pallet piece frame 400, three the first pallet pieces 401, three first The ratchet 403 of STATEMENT OF FEDERALLY SPONSORED 402 and first, the first pallet piece frame 400 is arranged in wheel hub, and first ratchet 403 is arranged at It is provided with the outside of second gear ring 311, the first pallet piece frame 400 for controlling the initial position of the first pallet piece 401 Elastic component 4000, the elastic component 4000 can be torsion spring, spring or spring leaf, it is certainly in other implementations, described Elastic component 4000 may be mounted on the first pallet piece 401 or in the first STATEMENT OF FEDERALLY SPONSORED 402, can equally realize the utility model. The STATEMENT OF FEDERALLY SPONSORED 402 of first pallet piece 401 and first is installed on the first pallet piece frame 400 by pin, and described several first Pallet piece 401 and several first STATEMENT OF FEDERALLY SPONSOREDs 402 are set in distance in a circumferential direction, and first pallet piece 401 includes：First End 4010, the second end 4011 and the first installation portion 4012 being arranged between first end 4010 and the second end 4011, First installation portion 4012 of first pallet piece 401 is provided with the first mounting hole 4014 for mounting pin, in present embodiment In each pallet piece 401 the second end 4011 inwall at be equipped with the ratchet portion 4013 being engaged with the first ratchet 403, when So in other embodiments, can also only one of which pallet piece 401 the second end 4011 inwall at be provided with and the first spine The ratchet portions 4013 that are engaged of wheel 403, or only two pallet pieces 401 the second end 4011 inwall at be provided with and first The ratchet portion 4013 that ratchet 403 is engaged, can equally realize the utility model.First STATEMENT OF FEDERALLY SPONSORED 402 includes the 3rd end Portion 4020, the 4th end 4021 and the second installation portion 4022 being arranged between the 3rd end 4020 and the 4th end 4021, institute The second installation portion 4022 of the first STATEMENT OF FEDERALLY SPONSORED 402 is stated provided with the second mounting hole 4023 for mounting pin, first pallet piece 401 first end 4010 is provided with balancing weight 4015, and the 4th end 4021 of first STATEMENT OF FEDERALLY SPONSORED 402 is provided with balancing weight 4024, it is limited in the end 4021 of the first STATEMENT OF FEDERALLY SPONSORED 402 the 4th along the first end 4010 of the first pallet piece 401 described in radial direction Inner side, be limited in the end of the first STATEMENT OF FEDERALLY SPONSORED 402 the 3rd along the second end 4011 of the first pallet piece 401 described in radial direction 4020 inner side, so sets and is advantageous in that not only pallet piece can produce centrifugal force, STATEMENT OF FEDERALLY SPONSORED can also produce centrifugal force, so that The centrifugal force of centrifugal mechanism is substantially increased so that the more miniaturization that whole centrifugal mechanism can be set, while this kind of structure Centrifugal mechanism more centrifugal ratchet quantity can be set so that stability is higher during the work of whole centrifugal mechanism.It is described The mating surface of first pallet piece 401 and the first STATEMENT OF FEDERALLY SPONSORED 402 is set in involute shape or arc shaped, so as to make the first pallet piece 401 pivot angle and the pivot angle of the first STATEMENT OF FEDERALLY SPONSORED 402 are consistent.The structure and first of the second automatic centrifugation shifter 41 The structure of automatic centrifugation shifter 40 is identical, including the second pallet piece frame 410, three the second pallet pieces 411, three second The ratchet 413 of moving part 412 and second, the second pallet piece frame 410 is arranged in wheel hub 2, and second ratchet 413 is arranged at The outside of two planet carriers 310, in the present embodiment, the first automatic centrifugation gearshift 40 and the second automatic centrifugation gearshift Mechanism 41 is respectively provided with three pallet pieces and three STATEMENT OF FEDERALLY SPONSOREDs, certainly in other embodiments, can also be not provided with STATEMENT OF FEDERALLY SPONSORED or One STATEMENT OF FEDERALLY SPONSORED is only set or a pallet piece is only set, the utility model can be equally realized.Certainly in other embodiment party In formula, the structure that automatic centrifugation gearshift may also is that, one end of the STATEMENT OF FEDERALLY SPONSORED and adjacent one of ratchet Part is flexibly connected, and the other end of the STATEMENT OF FEDERALLY SPONSORED is flexibly connected with another adjacent pallet piece, i.e., STATEMENT OF FEDERALLY SPONSORED can pass through two Holding the mode of bending, the pallet piece adjacent with two is constituted and is flexibly connected or STATEMENT OF FEDERALLY SPONSORED is direct adjacent with two by pin respectively Pallet piece constitute be flexibly connected, now STATEMENT OF FEDERALLY SPONSORED plays linkage equivalent to balancing pull rod, can equally realize this practicality newly Type.

One end of the central shaft 1, which is provided between boss 10, the gear ring 301 of boss 10 and first, is provided with bearing or rolling Pearl, is provided with bearing or ball between first gear ring 301 and wheel hub, one end of second centre wheel 313 is provided with and tight Part 6, is provided with bearing or ball, between second centre wheel 313 and wheel hub 2 between second centre wheel 313 and simultaneously tight part 6 Provided with bearing or ball.

Gear ring center wheel, which fixes single-wheel and directly drives the operation principle of fully-automatic gearbox, in the utility model is：One grade of low speed When, the ratchet 50 in freewheel clutch 5 is normally opened ratchet, i.e., described first planet carrier 300 is remained with wheel hub 2 engages shape State, power is inputted by central shaft 1, because the first planet carrier 300 and central shaft 1 are mutually fixed, the first planet carrier 300 again with wheel hub 2 Engagement is kept, therefore power is finally transferred to wheel hub 2 and carries out power output by wheel hub 2, one grade of low speed is realized, with central shaft The lifting of 1 speed, the effect of the end of balancing weight 4110 of the second pallet piece 411 of the second automatic centrifugation shifter 41 in centrifugal force Direction motion of the lower edge away from axle center, because the balancing weight 4110 of the second pallet piece 411 and ratchet portion 4111 are respectively arranged at the The two ends of two pallet pieces 411, based on lever principle, the end of ratchet portion 4111 of the second pallet piece 411 is moved to axis direction, so that It is meshed with the second ratchet 413 on the second planet carrier 310, when the mechanism of the second automatic centrifugation gear shift 41 works, freewheel clutch 5 In servo-actuated state, power is inputted by central shaft 1, because the first planet carrier 300 is fixedly connected with central shaft 1, therefore power is passed The first planet carrier 300 is defeated by, by the transmission of the first planetary gear 302, first planet carrier 300 is delivered power in first Heart wheel 303, because the first centre wheel 303 is integrally formed with the second gear ring 311, therefore power is transferred to the second gear ring 311, passes through The transmission of second planetary gear 312, second gear ring 311 delivers power to the second planet carrier 310, due to the second planet carrier 310 are meshed with wheel hub 2, therefore power is ultimately transferred to wheel hub 2 and carries out power output by wheel hub 2, realizes two grades of middling speeds, when When the rotating speed of central shaft 1 is further lifted, the end of balancing weight 4015 of the first pallet piece 401 of the first automatic centrifugation shifter 40 Moved under the influence of centrifugal force along the direction away from axle center, balancing weight 4015 and ratchet portion due to the first pallet piece 401 4013 are respectively arranged at the two ends of the first pallet piece 401, based on lever principle, the end of ratchet portion 4013 of the first pallet piece 401 to Axis direction is moved, so that be meshed with the first ratchet 403 on the second gear ring 311, the work of the first automatic centrifugation shifter 40 When making, the second automatic centrifugation shifter 41 and freewheel clutch 5 are in servo-actuated state, and power is inputted by central shaft 1, by It is fixedly connected in the first planet carrier 300 with central shaft 1, therefore power is transferred to the first planet carrier 300, passes through the first planetary gear 302 transmission, first planet carrier 300 delivers power to the first centre wheel 303, due to the first centre wheel 303 and second Gear ring 311 is integrally formed, therefore power is transferred to the second gear ring 311, because the second gear ring 311 is meshed with wheel hub 2, therefore dynamic Power is ultimately transferred to wheel hub 2 and carries out power output by wheel hub 2, realizes third gear at a high speed.Single-wheel in the utility model directly drives three Shelves fully-automatic gearbox can reduce the requirement to stepping on frequency when medium-to-high grade, for example：Assuming that first, second automatic centrifugation shifter The operating rate that ratchet is opened is respectively 160 revs/min, 80 revs/min, and the speed of the first planetary mechanism is than being 1:3, the second planet The fast ratio of mechanism is 1.5:1, when 70 revs/min of central shaft input speed, now the rotating speed of wheel hub turns with central shaft input Speed is identical, i.e., 70 revs/min, because first, second automatic centrifugation shifter ratchet is all mounted on wheel hub, so now First, second automatic centrifugation shifter ratchet can not all open, power 1:1 is exported by wheel hub, realizes one grade of low speed, central When heart axle input speed reaches 80 revs/min, now the rotating speed of wheel hub has also reached 80 revs/min, the second automatic centrifugation gear shift Mechanism ratchet is opened and is meshed with the ratchet of the second planet carrier, realizes two grades of mid rangers, now the rotating speed 160 of the second planet carrier Rev/min (80 revs/min * speed compares 1.5 than 3/ speed), much larger than the working speed of the ratchet opening of the second automatic centrifugation mechanism 80 revs/min, it is possible to reduce the input speed of central shaft, that is, it can reduce and trample frequency.In the second automatic centrifugation Under the working condition that the ratchet of mechanism is opened, when central shaft input speed increases again to 80 revs/min, the rotating speed of wheel hub is 160 revs/min (80 revs/min * speed compares 1.5 than 3/ speed), the first automatic centrifugation shifter ratchet opening and with the second gear ring Ratchet be meshed, realize third gear top gear, now 240 revs/min of the rotating speed of the second gear ring (8 revs/min of * speed compare 3), long-range 160 revs/min of the working speed opened in the ratchet of the first automatic centrifugation mechanism, it is possible to which the input for reducing central shaft turns Speed, that is, it can reduce and trample frequency.By a series of raising input speeds, automatic centrifugation gear shift is realized, frequency is trampled in reduction Rate, improves input speed again, and higher level automatic centrifugation gear shift this automatic centrifugation gear shift circulation is realized again.

Embodiment 2

Join shown in Fig. 5, gear ring center wheel in the present embodiment fixes single-wheel and directly drives multi gear fully-automatic gearbox remaining structure Same as Example 1, difference is：In embodiment 1, two sets of automatic centrifugation shifters, overdrive clutch are set altogether Device is arranged between the first planet carrier and wheel hub, and in the present embodiment, a set of automatic centrifugation shifter is set altogether, is compared In embodiment 1, embodiment 2 eliminates the second automatic centrifugation shifter in embodiment 1, and originally will be arranged at the first planet Freewheel clutch between frame and wheel hub, which is arranged at, to be removed at the position of the second automatic centrifugation shifter.

Gear ring center wheel, which fixes single-wheel and directly drives the operation principle of multi gear fully-automatic gearbox, in present embodiment is：It is one grade low When fast, the ratchet 50 in freewheel clutch 5 remains engagement, power for normally opened ratchet, i.e. the second planet carrier and wheel hub Inputted by central shaft 1, because the first planet carrier 300 is fixedly connected with central shaft 1, therefore power is transferred to the first planet carrier 300, By the transmission of the first planetary gear 302, first planet carrier 300 delivers power to the first centre wheel 303, in first Heart wheel 303 is integrally formed with the second gear ring 311, therefore power is transferred to the second gear ring 311, passes through the biography of the second planetary gear 312 Dynamic, second gear ring 311 delivers power to the second planet carrier 310, because the second planet carrier 310 is meshed with wheel hub 2, because This power is ultimately transferred to wheel hub 2 and carries out power output by wheel hub 2, realizes 1 grade of low speed, when the rotating speed of central shaft 1 is further During lifting, the balancing weight end of the first pallet piece 401 of the first automatic centrifugation shifter 40 is under the influence of centrifugal force along remote The direction motion in axle center, because the balancing weight and detent portions of the first pallet piece 401 are not arranged at the two of the first pallet piece 401 End, based on lever principle, the ratchet portion end of the first pallet piece 401 is moved to axis direction so that with the on the second gear ring 311 One ratchet 403 is meshed, when the first automatic centrifugation shifter 40 works, and the freewheel clutch 5 is in servo-actuated state, power Inputted by central shaft 1, because the first planet carrier 300 is fixedly connected with central shaft 1, therefore power is transferred to the first planet carrier 300, By the transmission of the first planetary gear 302, first planet carrier 300 delivers power to the first centre wheel 303, in first Heart wheel 303 is integrally formed with the second gear ring 311, therefore power is transferred to the second gear ring 311, due to the second gear ring 311 and wheel hub 2 It is meshed, therefore power is ultimately transferred to wheel hub 2 and carries out power output by wheel hub 2, realizes two grades of high speeds.

In summary, gear ring center wheel in the utility model fixes single-wheel directly to drive multi gear fully-automatic gearbox structure tight Gather, easy for installation, transmission efficiency, gear shift are firm, speed change is stable, the speed changer in the utility model can when medium-to-high grade in addition Reduction is to stepping on the requirement of frequency, so that it is lighter to ride.

Principle and its effect that the above embodiments only illustrative the utility model is created, and the reality that part is used Example is applied, not for limitation the utility model；It should be pointed out that for the person of ordinary skill of the art, not departing from this On the premise of utility model creates design, various modifications and improvements can be made, these belong to protection of the present utility model Scope.

Claims

1. a kind of gear ring center wheel fixes single-wheel and directly drives multi gear fully-automatic gearbox, it is characterised in that including：Central shaft, wheel hub And the gear between central shaft and wheel hub is arranged at, the central shaft is power input, and the wheel hub is power output Part, the gear includes two sets of planetary transmissions and at least a set of automatic centrifugation shifter, the planetary transmission bag Include：First planetary transmission and the second planetary transmission, first planetary transmission include the first planet carrier, the first gear ring, First planetary gear and the first centre wheel, second planetary transmission include the second planet carrier, the second gear ring, the second planetary gear and Second centre wheel, first gear ring is mutually fixed with vehicle frame, and first planet carrier is integrally formed or is fixedly connected with central shaft, First centre wheel is sheathed on central shaft, one sub-assembly of the first centre wheel and the second gear ring formation, in described second Heart wheel is sheathed on central shaft and mutually fixed with vehicle frame, between first planet carrier and wheel hub or the second planet carrier and wheel hub it Between be provided with freewheel clutch, often cover automatic centrifugation shifter include：Pallet piece frame, ratchet and at least one pallet piece, it is described Pallet piece is installed on pallet piece frame, and the pallet piece sets up and is placed in wheel hub, the ratchet be only arranged on the second gear ring or It is arranged at simultaneously on the second gear ring and on the second planet carrier.

2. a kind of gear ring center wheel as claimed in claim 1 fixes single-wheel and directly drives multi gear fully-automatic gearbox, it is characterised in that： The automatic centrifugation gearshift also includes at least one STATEMENT OF FEDERALLY SPONSORED, and the pallet piece is installed on ratchet by the first connector and consolidated Determine on frame, the STATEMENT OF FEDERALLY SPONSORED is installed on ratchet fixed mount by the second connector, the pallet piece and STATEMENT OF FEDERALLY SPONSORED are in circumference side It is set in distance upwards, the pallet piece includes：First end, the second end and it is arranged between first end and the second end The first installation portion, provided with the ratchet portion being engaged with ratchet, the spine at the inwall of the second end of at least one pallet piece First installation portion of bluff piece is provided with the first mounting hole for being used for installing the first connector, and the STATEMENT OF FEDERALLY SPONSORED includes the 3rd end, the Four ends and the second installation portion being arranged between the 3rd end and the 4th end, the second installation portion of the STATEMENT OF FEDERALLY SPONSORED is provided with use In the second mounting hole for installing the second connector, the first end of the pallet piece and/or the 4th end of STATEMENT OF FEDERALLY SPONSORED are provided with and matched somebody with somebody Pouring weight, the inner side of the 4th end of STATEMENT OF FEDERALLY SPONSORED, the pallet piece are limited in along the first end of pallet piece described in radial direction The second end is limited in the inner side of the end of STATEMENT OF FEDERALLY SPONSORED the 3rd or is limited in ratchet along the 4th end of STATEMENT OF FEDERALLY SPONSORED described in radial direction The inner side of part first end, the 3rd end of the STATEMENT OF FEDERALLY SPONSORED are limited in the inner side of the second end of pallet piece, and the ratchet is consolidated Determine the elastic component for controlling pallet piece initial position is installed on frame or in STATEMENT OF FEDERALLY SPONSORED or on pallet piece.

3. a kind of gear ring center wheel as claimed in claim 1 fixes single-wheel and directly drives multi gear fully-automatic gearbox, it is characterised in that： The automatic centrifugation gearshift also includes at least one STATEMENT OF FEDERALLY SPONSORED, and the pallet piece is installed on ratchet by the first connector and consolidated Determine on frame, one end of the STATEMENT OF FEDERALLY SPONSORED is flexibly connected with adjacent one of pallet piece, the other end and the phase of the STATEMENT OF FEDERALLY SPONSORED Another adjacent pallet piece is flexibly connected, and the pallet piece and STATEMENT OF FEDERALLY SPONSORED are set in distance in a circumferential direction, the ratchet Part includes first end, the second end and the first installation portion being arranged between first end and the second end, the pallet piece First end be provided with balancing weight, provided with the ratchet being engaged with ratchet at the inwall of the second end of at least one pallet piece Portion, the first installation portion of the pallet piece, which is provided with the first mounting hole for being used for installing the first connector, the pallet piece frame, pacifies Equipped with the elastic component for controlling pallet piece initial position.

4. a kind of gear ring center wheel fixes single-wheel and directly drives multi gear fully-automatic gearbox as claimed in claim 2 or claim 3, its feature exists In：The elastic component is torsion spring, spring or spring leaf.

5. a kind of gear ring center wheel fixes single-wheel and directly drives multi gear fully-automatic gearbox as claimed in claim 2 or claim 3, its feature exists In：The ratchet fixed mount includes：Several mounting seats that the inwall of circular base portion and certainly circular base portion extends internally, it is described Pallet piece is installed in mounting seat.

6. a kind of gear ring center wheel as claimed in claim 2 fixes single-wheel and directly drives multi gear fully-automatic gearbox, it is characterised in that： Described the first connector, the second connector are pin.

7. a kind of gear ring center wheel as claimed in claim 1 fixes single-wheel and directly drives multi gear fully-automatic gearbox, it is characterised in that： The mating surface of the pallet piece and STATEMENT OF FEDERALLY SPONSORED is set in involute shape or arc shaped.

8. a kind of gear ring center wheel as claimed in claim 1 fixes single-wheel and directly drives multi gear fully-automatic gearbox, it is characterised in that： Connected between first planet carrier and central shaft by spline.

9. a kind of gear ring center wheel as claimed in claim 1 fixes single-wheel and directly drives multi gear fully-automatic gearbox, it is characterised in that： One end of the central shaft be provided with boss, between the boss and the first gear ring be provided with bearing or ball, first gear ring with Bearing or ball are provided between wheel hub, one end of second centre wheel is provided with simultaneously tight part, second centre wheel and and tight part Between be provided with bearing or ball, between second centre wheel and wheel hub be provided with bearing or ball.