CN109185406A - A kind of single rear wheel directly drives speed changer - Google Patents
A kind of single rear wheel directly drives speed changer Download PDFInfo
- Publication number
- CN109185406A CN109185406A CN201811351999.9A CN201811351999A CN109185406A CN 109185406 A CN109185406 A CN 109185406A CN 201811351999 A CN201811351999 A CN 201811351999A CN 109185406 A CN109185406 A CN 109185406A
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- Prior art keywords
- bearing
- wheel hub
- ratchet
- wheel
- inner ring
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/44—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
- F16H3/70—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion in which the central axis of the gearing lies inside the periphery of an orbital gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/021—Shaft support structures, e.g. partition walls, bearing eyes, casing walls or covers with bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H57/082—Planet carriers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/08—General details of gearing of gearings with members having orbital motion
- F16H2057/085—Bearings for orbital gears
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Transmissions (AREA)
- Retarders (AREA)
Abstract
The invention discloses a kind of single rear wheels directly to drive speed changer, it include: central axis, power input, wheel hub and gearshift and at least one planetary transmission, each planetary transmission includes planet carrier, centre wheel, planetary gear and gear ring, one end of the wheel hub is equipped with first round hub cap, the other end of the wheel hub is equipped with the second wheel hub cover, the first round hub cap, second wheel hub cover is fixedly connected with wheel hub, a first bearing is equipped between the first round hub cap and central axis, at least one second bearing is equipped between the central axis and gear ring or planet carrier, a 3rd bearing is equipped between second wheel hub cover and gear ring or planet carrier, the first bearing, second bearing and 3rd bearing are deep groove ball bearing, the rated load of the first bearing is greater than the rated load of second bearing, the inner ring and outer ring of the first bearing Two sides are abutted against with adjacent component, to substantially prolong the service life of bearing.
Description
[technical field]
The present invention relates to technical field of bicycles, and in particular to a kind of single rear wheel directly drives speed changer.
[background technique]
Single rear wheel directly drives speed changer and generally comprises: power input, central axis, wheel hub and be set to central axis and wheel hub it
Between planetary transmission and gearshift, the central axis is fixedly connected with vehicle frame, and one end of the wheel hub is equipped with first wheel
The other end of lid, the wheel hub is equipped with the second wheel hub cover, and first round hub cap and the second wheel hub cover are fixedly connected with wheel hub, described
Power input is fixedly connected with the gear ring of planetary transmission or planet carrier, and power is inputted by power input, then passes through row
The transmission of star speed changer finally imparts power to wheel hub, carries out power output by wheel hub, since central axis is static element, wheel
Hub, first round hub cap, the second wheel hub cover, power input and planetary transmission are movement parts, therefore generally in first wheel
One first bearing is set between lid and central axis, is arranged at least between gear ring and central axis or between planet carrier and central axis
A 3rd bearing is arranged in one second bearing between gear ring and the second wheel hub cover or between planet carrier and the second wheel hub cover.
In the prior art single rear wheel directly drive speed changer first bearing, second bearing and 3rd bearing size it is identical, and
The inner ring and outer ring two sides of one bearing, second bearing and 3rd bearing are abutted against with adjacent component, and the defect of this kind of structure exists
In: 1, when transmission duty, first bearing, second bearing and 3rd bearing will be simultaneously by axial force, first bearings, second
Bearing and 3rd bearing are easily damaged, and influence service life；2, the overall dimensions of speed changer are larger, and structure is not compact enough.
Therefore, it is necessary to which the single rear wheel for providing a kind of solution above-mentioned technical problem directly drives speed changer.
[summary of the invention]
In order to solve the above technical problems, the purpose of the present invention is to provide the single rear wheels that one kind can extend bearing service life
It is straight to drive speed changer.
The technical scheme adopted by the invention is as follows: a kind of single rear wheel directly drives speed changer, comprising: central axis, power input,
Wheel hub and the gearshift being set between central axis and wheel hub and at least one planetary transmission, the central axis and vehicle frame phase
Fixed, each planetary transmission includes planet carrier, centre wheel, planetary gear and gear ring, and one end of the wheel hub is equipped with first wheel
Lid, the other end of the wheel hub are equipped with the second wheel hub cover, the first round hub cap, the second wheel hub cover be fixedly connected with wheel hub or
In both first round hub cap and the second wheel hub cover described in person, one of them is integrally formed with wheel hub, another and wheel hub are fixed and connected
It connects, a first bearing is equipped between the first round hub cap and central axis, is set between the central axis and gear ring or planet carrier
Have at least one second bearing, between second wheel hub cover and gear ring or planet carrier be equipped with a 3rd bearing, described first
Bearing, second bearing and 3rd bearing are deep groove ball bearing, and the rated load of the first bearing is greater than the volume of second bearing
Determine load, the inner ring and outer ring two sides of the first bearing are abutted against with adjacent component.
Preferably, one of present invention single rear wheel directly drives speed changer and is further arranged to: the second bearing and third
Gap or the outer ring of at least one bearing are equipped in bearing the two, between the inner ring two sides of at least one bearing and adjacent component
It is equipped between gap or the inside and outside circle and adjacent component of at least one bearing side between two sides and adjacent component and is equipped with gap
Or it is equipped with gap on the left of the inner ring of the second bearing and on the right side of the inner ring of the 3rd bearing between adjacent component simultaneously
Or it is equipped with gap on the left of the outer ring of the second bearing and on the right side of the outer ring of the 3rd bearing between adjacent component simultaneously.
Preferably, one of present invention single rear wheel directly drives speed changer and is further arranged to: one end of the central axis is set
There is the first thread segment, the other end of the central axis is equipped with the second thread segment, and the both ends of the central axis are respectively equipped with and first
The first nut that thread segment matches and the second nut matched with the second thread segment.
Preferably, one of present invention single rear wheel directly drives speed changer and is further arranged to: the number of the planetary transmission
Amount is one, and the power input is connected with the gear ring of planetary transmission or planet carrier.
Preferably, one of present invention single rear wheel directly drives speed changer and is further arranged to: the gearshift includes: spine
Bluff piece frame, centrifugal ratchet part, ratchet and the elastic component for controlling centrifugal ratchet part initial position, the pallet piece erection are placed in
It is integrally formed or is fixedly connected in wheel hub and with wheel hub, the centrifugal ratchet part is installed on pallet piece frame by pin, the spine
Wheel is set on the outer circumference surface of gear ring, and freewheel clutch, the freewheel clutch packet are equipped between the planet carrier and wheel hub
Freewheel clutch pawl and overrunning coupler ratchet-wheel are included, the freewheel clutch is pawl spring to be set on planet carrier, described super
More ratchet of clutch is set in wheel hub and is integrally formed or is fixedly connected with wheel hub, the inner ring side of the first bearing and the
One nut abuts against, and the inner ring other side of the first bearing and the stage portion of central axis abut against, outside the first bearing
Circle side is abutted against with the stage portion in wheel hub, and the outer ring other side and the overrunning coupler ratchet-wheel of the first bearing abut against,
The inner ring side of the second bearing is abutted against with center shaft step part, the inner ring other side of the second bearing and the second nut
Abut against, between the outer ring side and gear ring end face of the second bearing be equipped with gap, the side of the 3rd bearing inner ring with
Gear ring abuts against, and gap is equipped between the other side of the 3rd bearing inner ring and the end face of the second wheel hub cover.
Preferably, one of present invention single rear wheel directly drives speed changer and is further arranged to: the gearshift includes: spine
Bluff piece frame, pallet piece, the first ratchet and the second ratchet and the elastic component for controlling pallet piece initial position, the pallet piece frame
It is set between wheel hub and planetary transmission, forms the axially movable connection of radial positioning between the pallet piece frame and wheel hub,
The pallet piece is installed on pallet piece frame by pin, and first ratchet is set on the outer circumference surface of gear ring, and described second
Ratchet is set on the outer circumference surface of planet carrier, and inner ring side and the first nut of the first bearing abut against, and described first
The inner ring other side of bearing and the stage portion of central axis abut against, and outer ring side and the first round hub cap of the first bearing offset
It connects, the outer ring other side and the wheel hub stage portion of the first bearing abut against, the inner ring side of the second bearing and central axis
Stage portion abuts against, and the inner ring other side and the second nut of the second bearing abut against, the side of the 3rd bearing inner ring
It is abutted against with gear ring.
Preferably, one of present invention single rear wheel directly drives speed changer and is further arranged to: the number of the planetary transmission
Amount is two, including the first planetary transmission and the second planetary transmission, first planetary transmission include: the first planet
Frame, the first centre wheel, the first planetary gear and the first gear ring, second planetary transmission include: the second planet carrier, the second center
Wheel, the second planetary gear and the second gear ring, the first planet carrier and the second gear ring form a sub-assembly, first gear ring, the
It is connected one of in two gear rings, first planet carrier and the second planet carrier with power input.
Preferably, one of present invention single rear wheel directly drives speed changer and is further arranged to: the gearshift includes: spine
Bluff piece frame, the first centrifugal ratchet part, the second centrifugal ratchet part, the first ratchet, the second ratchet and for control the first centrifugal ratchet
Several elastic components of part and the second centrifugal ratchet part initial position, pallet piece erection be placed in wheel hub and with wheel hub one at
Type is fixedly connected, and the first centrifugal ratchet part and the second centrifugal ratchet part pass through pin and be installed on pallet piece frame, described
First ratchet is set on the outer circumference surface of the first gear ring, and second ratchet is set on sub-assembly, second planet carrier
Freewheel clutch is equipped between wheel hub, the freewheel clutch includes freewheel clutch pawl and overrunning coupler ratchet-wheel, institute
Freewheel clutch pawl is stated to be set on the second planet carrier, the overrunning coupler ratchet-wheel be fixedly connected with wheel hub or one at
Type, inner ring side and the first nut of the first bearing abut against, the inner ring other side of the first bearing and central axis
Stage portion abuts against, and the outer ring side of the first bearing and the stage portion of first round hub cap abut against, the first bearing
The outer ring other side is abutted against with overrunning coupler ratchet-wheel, and inner ring side and the center shaft step part of the second bearing abut against,
The inner ring other side of the second bearing is abutted against with the second nut, and side and the first gear ring of the 3rd bearing inner ring offset
It connects.
Preferably, one of present invention single rear wheel directly drives speed changer and is further arranged to: the quantity of the second bearing
It is two, two second bearings are arranged side by side, and spacer is equipped between two second bearings.
Compared with prior art, the invention has the following beneficial effects: the specified loads that the present invention passes through the first bearing
Lotus is greater than the rated load of second bearing, and the two sides of the inner ring and outer ring of the first bearing are abutted against with adjacent component, from
And axial force when transmission duty is made to undertake major part by the biggish first bearing of rated load, and it is smaller by rated load
Second bearing and 3rd bearing undertake fraction or do not undertake, the advantages of this arrangement are as follows: 1, second bearing and third axis
The rated load held is small, therefore its size is also small, to ensure the structural compactness of speed changer；2, extend second bearing and
The service life of 3rd bearing.
[Detailed description of the invention]
Fig. 1 is the structural schematic diagram that single rear wheel directly drives speed changer in the embodiment of the present invention 1.
Fig. 2 is the schematic cross-sectional view that single rear wheel directly drives speed changer in the embodiment of the present invention 1.
Fig. 3 is the decomposition texture schematic diagram that single rear wheel directly drives speed changer in the embodiment of the present invention 1.
Fig. 4 is the schematic cross-sectional view that single rear wheel directly drives speed changer in the embodiment of the present invention 2.
Fig. 5 is the schematic cross-sectional view that single rear wheel directly drives speed changer in the embodiment of the present invention 3.
In figure: 1, central axis, the 10, first thread segment, the 11, second thread segment, 14, first bearing, 15, second bearing, 16,
Spacer, 17,3rd bearing, 2, power input, 3, wheel hub, 30, first round hub cap, the 31, second wheel hub cover, 4, gearshift,
40, pallet piece frame, the 41, first centrifugal ratchet part, the 42, second centrifugal ratchet part, the 43, first ratchet, the 44, second ratchet, 45, bullet
Property part, 46, centrifugal ratchet part, 47, ratchet, 48, pallet piece, the 5, first planetary transmission, 50, first planet carrier, in 51, first
Heart wheel, the 52, first planetary gear, the 53, first gear ring, the 6, second planetary transmission, the 60, second planet carrier, the 61, second centre wheel,
62, the second planetary gear, the 63, second gear ring, 7, sub-assembly, 8, freewheel clutch, 80, freewheel clutch pawl, 81, overdrive clutch
Device ratchet, 9, planetary transmission, 90, planet carrier, 91, centre wheel, 92, planetary gear, 93, gear ring.
[specific embodiment]
Below by specific embodiment to a kind of single rear wheel of the present invention directly drive speed changer make it is further detailed
Description.
Embodiment 1
Join shown in Fig. 1 to Fig. 3, a kind of single rear wheel directly drives speed changer, comprising: central axis 1, power input 2, wheel hub 3 and
Gearshift 4, the first planetary transmission 5 and the second planetary transmission 6 being set between central axis 1 and wheel hub 3, the center
Axis 1 is mutually fixed with vehicle frame.
First planetary transmission 5 includes: first planet carrier 50, the first centre wheel 51, the first planetary gear 52 and first
Gear ring 53, second planetary transmission 6 include: the second planet carrier 60, the second centre wheel 61, the second planetary gear 62 and the second tooth
Circle 63, the first planet carrier 50 and the second gear ring 63 form a sub-assembly 7.
The gearshift 4 includes: pallet piece frame 40, the first centrifugal ratchet part 41, the second centrifugal ratchet part 42, the first spine
Take turns the 43, second ratchet 44 and several elasticity for controlling 42 initial position of the first centrifugal ratchet part 41 and the second centrifugal ratchet part
Part 45, the pallet piece frame 40 are set in wheel hub 3 and are integrally formed with wheel hub 3, the first centrifugal ratchet part 41 and second
Centrifugal ratchet part 42 is installed on pallet piece frame 40 by pin, and first ratchet 43 is set to the excircle of the first gear ring 53
On face, second ratchet 44 is set on the outer circumference surface of sub-assembly 7, is equipped between second planet carrier 60 and wheel hub 3
Freewheel clutch 8, the freewheel clutch 8 include freewheel clutch pawl 80 and overrunning coupler ratchet-wheel 81, it is described surmount from
Clutch pawl 80 is set on the second planet carrier 60, and the overrunning coupler ratchet-wheel 81 is fixedly connected with wheel hub 3.
One end of the central axis 1 is equipped with the first thread segment 10, and the other end of the central axis 1 is equipped with the second thread segment
11, the both ends of the central axis 1 be respectively equipped with the first nut (not shown) matched with the first thread segment 10 and with the second spiral shell
The second nut (not shown) that line section 11 matches.One end of the wheel hub 3 be equipped with first round hub cap 30, the wheel hub 3 it is another
One end is equipped with the second wheel hub cover 31, and the first round hub cap 30, the second wheel hub cover 31 are fixedly connected with wheel hub 3, and described first
It is equipped with a first bearing 14 between wheel hub cover 30 and central axis 1, is set between the central axis 1 and the first gear ring 53 there are two simultaneously
The second bearing 15 of setting is arranged, is equipped with spacer 16 between two second bearings 15.Second wheel hub cover 31 and the first gear ring 53
Between be equipped with a 3rd bearing 17, the first bearing 14, second bearing 15 and 3rd bearing 17 are deep groove ball bearing, institute
The rated load for stating first bearing 14 is greater than the rated load of second bearing 15, the inner ring side and first of the first bearing 14
Nut abuts against, and the inner ring other side of the first bearing 14 and the stage portion of central axis 1 abut against, the first bearing 14
Outer ring side and the stage portion of first round hub cap 30 abut against, the outer ring other side of the first bearing 14 and freewheel clutch spine
Wheel 81 abuts against, and the inner ring side positioned at the second bearing 15 of leftward position is abutted against with center shaft step part, is located at left lateral position
The inner ring other side for the second bearing 15 set is abutted against with spacer 16, positioned at right positions second bearing 15 inner ring side with
Spacer 16 abuts against, and the inner ring other side positioned at the second bearing 15 of right positions is abutted against with the second nut, is located at left lateral position
Gap is equipped between the outer ring side and first planet carrier 50 of the second bearing 15 set, positioned at the second bearing 15 of right positions
Gap is equipped between 63 end face of outer ring side and the second gear ring, side and the second gear ring 63 of 17 inner ring of 3rd bearing offset
It connects, gap, the 3rd bearing 17 is equipped between the other side of 17 inner ring of 3rd bearing and the end face of the second wheel hub cover 31
31 inside left-end face of outer ring side and the second wheel hub cover between be equipped with gap, the outer ring other side of the 3rd bearing 17 and the
Gap is equipped between two wheel hub covers, 31 inside right side, the setting in above-mentioned gap is not so that second bearing 15 and 3rd bearing 17 are held
By axial force or it is subjected only to lesser axial force, and makes the axial force of speed changer mainly by the biggish first bearing of rated load
14 undertake, to protect second bearing 15 and 3rd bearing 17, extend the use of second bearing 15 and 3rd bearing 17
Service life.
In the present embodiment, the power input 2 is connected with the first gear ring 53, therefore second bearing is set to first
Between gear ring 53 and central axis 1,3rd bearing is set between the first gear ring 53 and the second wheel hub cover 31, certainly other real
It applies in mode, the power input 2 can also be connected with the second gear ring 63 or first planet carrier 50 or the second planet carrier 60, and second
Bearing may also set up between the second gear ring 63 and central axis 1 or between first planet carrier 50 and central axis 1 or the second row
Between carrier 60 and central axis 1,3rd bearing 17 be may also set up between the second gear ring 63 and first round hub cap 30 or first
Between planet carrier 50 and the second wheel hub cover 31 or between the second planet carrier 60 and first round hub cap 30, this hair equally may be implemented
It is bright.
Single rear wheel directly drives the working principle of speed changer in the present embodiment are as follows: when bottom gear, the first centrifugal ratchet part 41, second
Centrifugal ratchet part 42, the first ratchet 43 and the second ratchet 44 are in disengaged position, and power is inputted by power input 2, due to
Power input 2 is connected with the first gear ring 53, therefore drives the rotation of the first gear ring 53, and the first gear ring 53 passes through the first planetary gear 52
Transmission drive first planet carrier 50 to rotate, form sub-assembly 7 since first planet carrier 50 and the second gear ring 63 are integrally formed, because
The rotation of this second gear ring 63, then pass through the transmission of the second planetary gear 62, the rotation of the second planet carrier 60 is driven, due to being set to second
Freewheel clutch 8 between planet carrier 60 and wheel hub 3 is in meshing state always, thus rotate with runner hub 3 and by wheel hub 3 into
Action edge output；When mid ranger, the first centrifugal ratchet part 41 and the first ratchet 43 are in disengaged position, the second centrifugal ratchet part 42
It is in meshing state with the second ratchet 44, power is inputted by power input 2, due to power input 2 and 53 phase of the first gear ring
Even, therefore the rotation of the first gear ring 53 is driven, the first gear ring 53 drives 50 turns of first planet carrier by the transmission of the first planetary gear 52
It is dynamic, since first planet carrier 50 and the second gear ring 63 are integrally formed composition sub-assembly 7, the second gear ring 63 rotation, due to setting
The second ratchet 44 being placed on the second gear ring 63 is meshed with the second centrifugal ratchet part 42 being set on pallet piece frame 40, pawl
Part frame 40 is integrally formed with wheel hub 3 again, therefore is rotated with runner hub 3 and carried out power output, when mid ranger, second by wheel hub 3
Planet carrier 60 is in servo-actuated state.When top gear, the first centrifugal ratchet part 41 and the first ratchet 43 are in meshing state, second from
Heart pallet piece 42 and the second ratchet 44 are in meshing state, and power is inputted by power input 2, due to power input 2 and
One gear ring 53 is connected, therefore the first gear ring 53 rotates, due to the first ratchet 43 for being set on the first gear ring 53 be set to spine
The first centrifugal ratchet part 41 on bluff piece frame 40 is meshed, and pallet piece frame 40 is integrally formed with wheel hub 3 again, therefore with runner hub 3
It rotates and power output is carried out by wheel hub 3, when top gear, first planet carrier 50 and the second planet carrier 60 are in servo-actuated state.
Embodiment 2
Join shown in Fig. 4, a kind of single rear wheel directly drives speed changer, comprising: central axis 1, power input 2, wheel hub 3 and be set to
Gearshift 4 and a planetary transmission 9 between central axis 1 and wheel hub 3, the central axis 1 are mutually fixed with vehicle frame, the row
Star speed changer 9 includes planet carrier 90, centre wheel 91, planetary gear 92 and gear ring 93.
The gearshift 4 includes: pallet piece frame 40, elastic component (not shown), centrifugal ratchet part 46 and ratchet 47, described
Elastic component is used to control the initial position of centrifugal ratchet part 46, and it is interior and integrated with wheel hub 3 that the pallet piece frame 40 is set to wheel hub 3
Molding, the centrifugal ratchet part 46 are installed on pallet piece frame 40 by pin, and the ratchet 47 is set to the excircle of gear ring 93
On face, freewheel clutch 8 is equipped between the planet carrier 90 and wheel hub 3, the freewheel clutch 8 includes freewheel clutch pawl
80 and overrunning coupler ratchet-wheel 81, the freewheel clutch pawl 80 be flexibly set on planet carrier 90, the freewheel clutch
Ratchet 81 is set in wheel hub 3 and is fixedly connected with wheel hub 3.
One end of the central axis 1 is equipped with the first thread segment 10, and the other end of the central axis 1 is equipped with the second thread segment
11, the both ends of the central axis 1 be respectively equipped with the first nut (not shown) matched with the first thread segment 10 and with the second spiral shell
The second nut (not shown) that line section 11 matches.
One end of the wheel hub 3 is equipped with first round hub cap 30, and the other end of the wheel hub 3 is equipped with the second wheel hub cover 31, institute
State first round hub cap 30, the second wheel hub cover 31 is fixedly connected with wheel hub 3, set between the first round hub cap 30 and central axis 1
There is a first bearing 14, is set between the central axis 1 and gear ring 93 there are two second bearing 15 arranged side by side, two second
Between bearing 15 be equipped with spacer 16, between second wheel hub cover 31 and gear ring 93 be equipped with a 3rd bearing 17, described first
Bearing 14, second bearing 15 and 3rd bearing 17 are deep groove ball bearing, and the rated load of the first bearing 14 is greater than second
The rated load of bearing 15, inner ring side and the first nut of the first bearing 14 abut against, the first bearing 14 it is interior
The circle other side and the stage portion of central axis 1 abut against, and outer ring side and the stage portion in wheel hub 3 of the first bearing 14 offset
It connects, the outer ring other side and the overrunning coupler ratchet-wheel 81 of the first bearing 14 abut against, positioned at the second bearing of leftward position
15 inner ring side is abutted against with 1 stage portion of central axis, the inner ring other side and spacer positioned at the second bearing 15 of leftward position
16 abut against, and the inner ring side positioned at the second bearing 15 of right positions is abutted against with spacer 16, positioned at the second of right positions
The inner ring other side of bearing 15 is abutted against with the second nut, outer ring side and planet carrier positioned at the second bearing 15 of leftward position
It is equipped with gap between 90, gap, institute are equipped between 93 end face of outer ring side and gear ring of the second bearing 15 of right positions
The side and gear ring 93 for stating 17 inner ring of 3rd bearing abut against, the other side of 17 inner ring of 3rd bearing and the second wheel hub cover 31
End face between be equipped with gap, the outer ring side of the 3rd bearing 17 is cavity, the outer ring other side of the 3rd bearing 17
Gap is equipped between 31 end face of the second wheel hub cover.
In the present embodiment, the power input 2 is connected with gear ring 93, therefore second bearing 15 is set to gear ring 93
Between central axis 1,3rd bearing 17 is set between gear ring 93 and the second wheel hub cover 31, certainly in other embodiments
In, the power input 2 can also be connected with planet carrier 90, second bearing 15 may also set up in planet carrier 90 and central axis 1 it
Between, 3rd bearing 17 may also set up between planet carrier 90 and the second wheel hub cover 31, and the present invention equally may be implemented.
Single rear wheel directly drives the working principle of speed changer in the present embodiment are as follows: when bottom gear, centrifugal ratchet part 46 and ratchet 47
In disengaged position, power is inputted by power input 2, since power input 2 is connected with gear ring 93,93 turns of gear ring
It is dynamic, by the transmission of planetary gear 92, drive planet carrier 90 to rotate, due to the overrunning coupler ratchet-wheel 81 being set on planet carrier 90
It is meshed with the freewheel clutch pawl 80 being set in wheel hub 3, therefore with the rotation of runner hub 3 and defeated by the progress power of wheel hub 3
Out；When top gear, centrifugal ratchet part 46 and ratchet 47 are in meshing state, and power is inputted by power input 2, since power is defeated
Enter part 2 to be connected with gear ring 93, therefore gear ring 93 rotates, and due to the ratchet 47 being set on gear ring 93 and is set in wheel hub 3
Centrifugal ratchet part 46 is meshed, therefore rotates with runner hub 3, and when top gear, planet carrier 90 is in servo-actuated state.
Embodiment 3
Join shown in Fig. 5, a kind of single rear wheel directly drives speed changer, comprising: central axis 1, power input 2, wheel hub 3 and be set to
Gearshift 4 and a planetary transmission 9 between central axis 1 and wheel hub 3, the central axis 1 are mutually fixed with vehicle frame, the row
Star speed changer 9 includes planet carrier 90, centre wheel 91, planetary gear 92 and gear ring 93.
The gearshift 4 includes: pallet piece frame 40, pallet piece 48, the first ratchet 43 and the second ratchet 44 and for controlling
The elastic component (not shown) of 48 initial position of pallet piece processed, the pallet piece frame 40 be set to wheel hub 3 and planetary transmission 9 it
Between, the axially movable connection of radial positioning is formed between the pallet piece frame 40 and wheel hub 3, the pallet piece 48 is installed by pin
In on pallet piece frame 40, first ratchet 43 is set on the outer circumference surface of gear ring 93, and second ratchet 44 is set to row
On the outer circumference surface of carrier 90.
One end of the central axis 1 is equipped with the first thread segment 10, and the other end of the central axis 1 is equipped with the second thread segment
11, the both ends of the central axis 1 be respectively equipped with the first nut (not shown) matched with the first thread segment 10 and with the second spiral shell
The second nut (not shown) that line section 11 matches.
One end of the wheel hub 3 is equipped with first round hub cap 30, and the other end of the wheel hub 3 is equipped with the second wheel hub cover 31, institute
State first round hub cap 30, the second wheel hub cover 31 is fixedly connected with wheel hub 3, set between the first round hub cap 30 and central axis 1
There is a first bearing 14, is set between the central axis 1 and gear ring 93 there are two second bearing 15 arranged side by side, two second
Between bearing 15 be equipped with spacer 16, between second wheel hub cover 31 and gear ring 93 be equipped with a 3rd bearing 17, described first
Bearing 14, second bearing 15 and 3rd bearing 17 are deep groove ball bearing, and the rated load of the first bearing 14 is greater than second
The rated load of bearing 15, inner ring side and the first nut of the first bearing 14 abut against, the first bearing 14 it is interior
The circle other side and the stage portion of central axis 1 abut against, and outer ring side and the first round hub cap 30 of the first bearing 14 abut against,
The outer ring other side of the first bearing 14 is abutted against with the end face in wheel hub 3, in the second bearing 15 of leftward position
Circle side is abutted against with 1 stage portion of central axis, and the inner ring other side positioned at the second bearing 15 of leftward position is abutted against with spacer,
Inner ring side positioned at the second bearing 15 of right positions is abutted against with spacer 16, in the second bearing 15 of right positions
The circle other side is abutted against with the second nut, is equipped between the outer ring side and planet carrier 90 of the second bearing 15 of leftward position
Gap is equipped with gap, the 3rd bearing between 93 end face of outer ring side and gear ring of the second bearing 15 of right positions
The side of 17 inner rings is abutted against with gear ring 93, between the other side of 17 inner ring of 3rd bearing and the end face of the second wheel hub cover 31
Equipped with gap, the outer ring side of the 3rd bearing 17 is cavity, the outer ring other side of the 3rd bearing 17 and the second wheel hub
Gap is equipped between 31 end face of lid.
In the present embodiment, the power input 2 is connected with gear ring 93, therefore second bearing 15 is set to gear ring 93
Between central axis 1,3rd bearing 17 is set between gear ring 93 and the second wheel hub cover 31, certainly in other embodiments
In, the power input 2 can also be connected with planet carrier 90, second bearing 15 may also set up in planet carrier 90 and central axis 1 it
Between, 3rd bearing 17 may also set up between planet carrier 90 and the second wheel hub cover 31, and the present invention equally may be implemented.
Single rear wheel directly drives the working principle of speed changer in the present embodiment are as follows: when bottom gear, pallet piece 48 and the first ratchet 43
In disengaged position, be in meshing state with the second ratchet 44, power is inputted by power input 2, due to power input 2 with
Gear ring 93 is connected, and gear ring 93 rotates, and by the transmission of planetary gear 92, drives planet carrier 90 to rotate, due to being set to planet carrier 90
The second ratchet 44 on outer circumference surface is meshed with pallet piece, pallet piece frame 40 again with 3 radial positioning of wheel hub, therefore with runner hub
3 rotations simultaneously carry out power output by wheel hub 3, when top gear, move axially pallet piece frame 40, make the pallet piece on pallet piece frame 40
48 are disengaged from the second ratchet 44, and are meshed with the first ratchet 43, and power is inputted by power input 2, since power is defeated
Enter part 2 to be connected with gear ring 93, gear ring 93 rotates, due to the first ratchet 43 and pallet piece 48 being set on 93 outer circumference surface of gear ring
Be meshed, pallet piece frame 40 again with 3 radial positioning of wheel hub, therefore with runner hub 3 rotate and by wheel hub 3 carry out power output.
In conclusion the present invention is greater than the rated load of second bearing 15 by the rated load of the first bearing 14,
The two sides of the inner ring and outer ring of the first bearing 14 are abutted against with adjacent component, so that axial direction when transmission duty
Power undertakes major part by the biggish first bearing 14 of rated load, and by the lesser second bearing 15 of rated load and 3rd bearing
17 undertake fraction or do not undertake, and extend second bearing 15 and 3rd bearing 17 while ensureing speed changer structure compactedness
Service life.
The principles and effects of the invention, and the implementation that part uses only is illustrated in the above embodiments
Example, and is not intended to limit the present invention；It should be pointed out that for those of ordinary skill in the art, not departing from wound of the present invention
Under the premise of making design, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Claims (9)
1. a kind of single rear wheel directly drives speed changer, comprising: central axis, power input, wheel hub and be set to central axis and wheel hub it
Between gearshift and at least one planetary transmission, the central axis mutually fixes with vehicle frame, and each planetary transmission includes row
Carrier, centre wheel, planetary gear and gear ring, one end of the wheel hub are equipped with first round hub cap, and the other end of the wheel hub is equipped with the
Two wheel hub covers, the first round hub cap, the second wheel hub cover are fixedly connected with wheel hub or the first round hub cap and second is taken turns
In hub cap the two, one of them is integrally formed with wheel hub, another is fixedly connected with wheel hub, the first round hub cap and central axis
Between be equipped with a first bearing, be equipped at least one second bearing between the central axis and gear ring or planet carrier, described the
Between two wheel hub covers and gear ring or planet carrier be equipped with a 3rd bearing, it is characterised in that: the first bearing, second bearing and
3rd bearing is deep groove ball bearing, and the rated load of the first bearing is greater than the rated load of second bearing, and described first
The inner ring and outer ring two sides of bearing are abutted against with adjacent component.
2. a kind of single rear wheel according to claim 1 directly drives speed changer, it is characterised in that: the second bearing and third axis
It holds in the two, gap or the outer ring two of at least one bearing is equipped between the inner ring two sides of at least one bearing and adjacent component
Between side and adjacent component be equipped between gap or the inside and outside circle and adjacent component of at least one bearing side be equipped with gap or
Be equipped between adjacent component simultaneously on the left of the inner ring of second bearing described in person and on the right side of the inner ring of the 3rd bearing gap or
It is equipped with gap on the left of the outer ring of second bearing described in person and on the right side of the outer ring of the 3rd bearing between adjacent component simultaneously.
3. a kind of single rear wheel according to claim 1 directly drives speed changer, it is characterised in that: one end of the central axis is equipped with
The other end of first thread segment, the central axis is equipped with the second thread segment, and the both ends of the central axis are respectively equipped with and the first spiral shell
The first nut that line section matches and the second nut matched with the second thread segment.
4. a kind of single rear wheel according to claim 3 directly drives speed changer, it is characterised in that: the quantity of the planetary transmission
It is one, the power input is connected with the gear ring of planetary transmission or planet carrier.
5. a kind of single rear wheel according to claim 4 directly drives speed changer, it is characterised in that: the gearshift includes: spine
Bluff piece frame, centrifugal ratchet part, ratchet and the elastic component for controlling centrifugal ratchet part initial position, the pallet piece erection are placed in
It is integrally formed or is fixedly connected in wheel hub and with wheel hub, the centrifugal ratchet part is installed on pallet piece frame by pin, the spine
Wheel is set on the outer circumference surface of gear ring, and freewheel clutch, the freewheel clutch packet are equipped between the planet carrier and wheel hub
Freewheel clutch pawl and overrunning coupler ratchet-wheel are included, the freewheel clutch is pawl spring to be set on planet carrier, described super
More ratchet of clutch is set in wheel hub and is integrally formed or is fixedly connected with wheel hub, the inner ring side of the first bearing and the
One nut abuts against, and the inner ring other side of the first bearing and the stage portion of central axis abut against, outside the first bearing
Circle side is abutted against with the stage portion in wheel hub, and the outer ring other side and the overrunning coupler ratchet-wheel of the first bearing abut against,
The inner ring side of the second bearing is abutted against with center shaft step part, the inner ring other side of the second bearing and the second nut
Abut against, between the outer ring side and gear ring end face of the second bearing be equipped with gap, the side of the 3rd bearing inner ring with
Gear ring abuts against, and gap is equipped between the other side of the 3rd bearing inner ring and the end face of the second wheel hub cover.
6. a kind of single rear wheel according to claim 4 directly drives speed changer, it is characterised in that: the gearshift includes: spine
Bluff piece frame, pallet piece, the first ratchet and the second ratchet and the elastic component for controlling pallet piece initial position, the pallet piece frame
It is set between wheel hub and planetary transmission, forms the axially movable connection of radial positioning between the pallet piece frame and wheel hub,
The pallet piece is installed on pallet piece frame by pin, and first ratchet is set on the outer circumference surface of gear ring, and described second
Ratchet is set on the outer circumference surface of planet carrier, and inner ring side and the first nut of the first bearing abut against, and described first
The inner ring other side of bearing and the stage portion of central axis abut against, and outer ring side and the first round hub cap of the first bearing offset
It connects, the outer ring other side and the wheel hub stage portion of the first bearing abut against, the inner ring side of the second bearing and central axis
Stage portion abuts against, and the inner ring other side and the second nut of the second bearing abut against, the side of the 3rd bearing inner ring
It is abutted against with gear ring.
7. a kind of single rear wheel according to claim 3 directly drives speed changer, it is characterised in that: the quantity of the planetary transmission
Be two, including the first planetary transmission and the second planetary transmission, first planetary transmission include: first planet carrier,
First centre wheel, the first planetary gear and the first gear ring, second planetary transmission include: the second planet carrier, the second centre wheel,
Second planetary gear and the second gear ring, the first planet carrier and the second gear ring form a sub-assembly, first gear ring, the second tooth
It is connected one of in circle, first planet carrier and the second planet carrier with power input.
8. a kind of single rear wheel according to claim 7 directly drives speed changer, it is characterised in that: the gearshift includes: spine
Bluff piece frame, the first centrifugal ratchet part, the second centrifugal ratchet part, the first ratchet, the second ratchet and for control the first centrifugal ratchet
Several elastic components of part and the second centrifugal ratchet part initial position, pallet piece erection be placed in wheel hub and with wheel hub one at
Type is fixedly connected, and the first centrifugal ratchet part and the second centrifugal ratchet part pass through pin and be installed on pallet piece frame, described
First ratchet is set on the outer circumference surface of the first gear ring, and second ratchet is set on sub-assembly, second planet carrier
Freewheel clutch is equipped between wheel hub, the freewheel clutch includes freewheel clutch pawl and overrunning coupler ratchet-wheel, institute
Freewheel clutch pawl is stated to be set on the second planet carrier, the overrunning coupler ratchet-wheel be fixedly connected with wheel hub or one at
Type, inner ring side and the first nut of the first bearing abut against, the inner ring other side of the first bearing and central axis
Stage portion abuts against, and the outer ring side of the first bearing and the stage portion of first round hub cap abut against, the first bearing
The outer ring other side is abutted against with overrunning coupler ratchet-wheel, and inner ring side and the center shaft step part of the second bearing abut against,
The inner ring other side of the second bearing is abutted against with the second nut, and side and the first gear ring of the 3rd bearing inner ring offset
It connects.
9. a kind of single rear wheel according to claim 1 directly drives speed changer, it is characterised in that: the quantity of the second bearing is
Two, two second bearings are arranged side by side, and spacer is equipped between two second bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811351999.9A CN109185406B (en) | 2018-11-14 | 2018-11-14 | Single rear wheel direct drive transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811351999.9A CN109185406B (en) | 2018-11-14 | 2018-11-14 | Single rear wheel direct drive transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109185406A true CN109185406A (en) | 2019-01-11 |
| CN109185406B CN109185406B (en) | 2023-09-22 |
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ID=64939078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811351999.9A Active CN109185406B (en) | 2018-11-14 | 2018-11-14 | Single rear wheel direct drive transmission |
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| Country | Link |
|---|---|
| CN (1) | CN109185406B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB326660A (en) * | 1929-03-07 | 1930-03-20 | Coom Kittilsen | Improvements relating to variable speed planetary gearing |
| US4706982A (en) * | 1986-04-21 | 1987-11-17 | Hartmann Dirck T | Dual range planetary transmission for pedal powered vehicles |
| KR101089683B1 (en) * | 2011-09-19 | 2011-12-05 | 주식회사 솔텍 | The bicycle an accelerator |
| CN106494563A (en) * | 2016-12-21 | 2017-03-15 | 张家港川梭车业有限公司 | A kind of gear ring center wheel is fixed single-wheel and directly drives many gear fully-automatic gearboxs |
| CN106741562A (en) * | 2017-01-20 | 2017-05-31 | 张家港川梭车业有限公司 | A kind of straight line tramples single-wheel and directly drives gear ring center wheel fixed transmission |
| CN209012347U (en) * | 2018-11-14 | 2019-06-21 | 张家港川梭车业有限公司 | A kind of single rear wheel directly drives speed changer |
-
2018
- 2018-11-14 CN CN201811351999.9A patent/CN109185406B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB326660A (en) * | 1929-03-07 | 1930-03-20 | Coom Kittilsen | Improvements relating to variable speed planetary gearing |
| US4706982A (en) * | 1986-04-21 | 1987-11-17 | Hartmann Dirck T | Dual range planetary transmission for pedal powered vehicles |
| KR101089683B1 (en) * | 2011-09-19 | 2011-12-05 | 주식회사 솔텍 | The bicycle an accelerator |
| CN106494563A (en) * | 2016-12-21 | 2017-03-15 | 张家港川梭车业有限公司 | A kind of gear ring center wheel is fixed single-wheel and directly drives many gear fully-automatic gearboxs |
| CN106741562A (en) * | 2017-01-20 | 2017-05-31 | 张家港川梭车业有限公司 | A kind of straight line tramples single-wheel and directly drives gear ring center wheel fixed transmission |
| CN209012347U (en) * | 2018-11-14 | 2019-06-21 | 张家港川梭车业有限公司 | A kind of single rear wheel directly drives speed changer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109185406B (en) | 2023-09-22 |
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