CN107131263A - A kind of axle input type three keeps off internal speed changer - Google Patents
A kind of axle input type three keeps off internal speed changer Download PDFInfo
- Publication number
- CN107131263A CN107131263A CN201710454467.7A CN201710454467A CN107131263A CN 107131263 A CN107131263 A CN 107131263A CN 201710454467 A CN201710454467 A CN 201710454467A CN 107131263 A CN107131263 A CN 107131263A
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- China
- Prior art keywords
- ratchet
- shifting sleeve
- gear
- central shaft
- pallet piece
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
- B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
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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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/025—Support of gearboxes, e.g. torque arms, or attachment to other devices
-
- 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
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
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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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02039—Gearboxes for particular applications
- F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
-
- 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
- F16H2057/02095—Measures for reducing number of parts or components
-
- 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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/003—Transmissions for multiple ratios characterised by the number of forward speeds
- F16H2200/0039—Transmissions for multiple ratios characterised by the number of forward speeds the gear ratios comprising three forward speeds
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2002—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears
- F16H2200/2005—Transmissions using gears with orbital motion characterised by the number of sets of orbital gears with one sets of orbital gears
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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
- F16H2200/00—Transmissions for multiple ratios
- F16H2200/20—Transmissions using gears with orbital motion
- F16H2200/2079—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches
- F16H2200/2082—Transmissions using gears with orbital motion using freewheel type mechanisms, e.g. freewheel clutches one freewheel mechanisms
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Structure Of Transmissions (AREA)
Abstract
Internal speed changer is kept off the invention discloses a kind of axle input type three, including：Central shaft, wheel hub, gearshift, planetary transmission and group retaining device, the planetary transmission include：Centre wheel, planet carrier, planetary gear and gear ring, are provided with freewheel clutch between the planet carrier and wheel hub, the gearshift includes：Shifting sleeve, ratchet, pallet piece frame and at least one pallet piece, one end of the shifting sleeve is provided with the first docking section, one end of the planet carrier is provided with the second docking section being engaged with the first docking section, the pallet piece frame is integrally formed or is fixedly connected with gear ring, the ratchet includes the first ratchet being arranged in wheel hub and the second ratchet being arranged on shifting sleeve, the pallet piece includes first end, the second end and middle installation portion, the first end is provided with the first ratchet portion being engaged with the first ratchet, the second end is provided with the second ratchet portion being engaged with the second ratchet, so as to greatly reduce noise with resistance.
Description
【Technical field】
The present invention relates to technical field of bicycles, and in particular to a kind of axle input type three keeps off internal speed changer.
【Background technology】
Join shown in Fig. 1 and Fig. 2, Fig. 1 discloses a kind of three gears internal speed changer of the prior art, including：Central shaft 1`, wheel
The hub 2` and shifting sleeve 3` being arranged between central shaft 1` and wheel hub 2`, planetary transmission 4`, group retaining device 5`, power input
6` and three set of freewheel clutch, the planetary transmission 4` includes planet carrier 40`, planetary gear 41`, centre wheel 42` and gear ring 43
`, the described group of retaining device 5` include dialling pin 50` and fix bar 51`, and the is provided between the power input 6` and wheel hub 2`
One bearing 60`, is provided with second bearing 61` between the power input 6` and central shaft 1`, three sets of freewheel clutches are respectively
It is arranged at the first freewheel clutch 70` between planet carrier 40` and wheel hub 2`, be arranged between gear ring 43` and wheel hub 2`
Two freewheel clutch 71` and the 3rd freewheel clutch 72` being arranged between power input 6` and gear ring 43`, the internal speed-changing
The operation principle of device is：Central shaft 1` is mutually fixed with vehicle frame, and power is inputted by power input 6`, during bottom gear, moving gear shift
3` is covered, the second freewheel clutch 71` is closed, gear ring 43` and wheel hub 2` is in disengaged position, power is defeated by power input 6`
Enter, because power input 6` is meshed by the 3rd freewheel clutch 72` with gear ring 43`, therefore gear ring 43` is rotated, gear ring
43` imparts power to planet carrier 40` by planetary gear 41` transmission, and planet carrier 40` is further through the first freewheel clutch 70`
It is meshed with wheel hub 2`, therefore power is ultimately transferred to wheel hub 2` and carries out power output by wheel hub 2`, during middle speed gear, movement is changed
Interstage sleeve 3`, opens the second freewheel clutch 71`, gear ring 43` and wheel hub 2` is in engagement, now the first freewheel clutch
70` is in servo-actuated state, and power is inputted by power input 6`, because power input 6` passes through the 3rd freewheel clutch 72`
It is meshed with gear ring 43`, therefore gear ring 43` is rotated, because gear ring 43` is nibbled by the second freewheel clutch 71` with wheel hub 2` phases
Close, therefore power is ultimately transferred to wheel hub 2` and carries out power output by wheel hub 2`, during top gear, moving gear shift set 3` makes tooth
Enclose between 43` and wheel hub 2` in engagement, connected between shifting sleeve 3` one end and planet carrier 40` by spline, shifted gears
Connected between the other end and power input 6` that cover 3` by spline, the first freewheel clutch 70` three surpasses with the during top gear
More clutch 72` is in servo-actuated state, and power is inputted by power input 6`, due to shifting sleeve 3` and power input 6` it
Between connected by spline, therefore shifting sleeve 3` rotate, due to shifting sleeve 3` again be connected with planet carrier 40` by spline, therefore row
Carrier 40` is rotated, and planet carrier 40` imparts power to gear ring 43` by planetary gear 41` transmission, due to gear ring 43` and wheel hub
2` is meshed, therefore power is ultimately transferred to wheel hub 2` and carries out power output by wheel hub 2`.
The defect of the three gears internal speed changer is：1st, the internal speed changer has used three sets of freewheel clutches altogether, not only causes
Whole internal speed changer structure is complex, and causes that internal speed changer noise is big, resistance is big；2nd, the structure that the internal speed changer is used
It is that central shaft is mutually fixed with vehicle frame, then the weight of bicyclist and the weight of frame all will focus on defeated positioned at power
Enter in the second bearing or the second ball between axle and central shaft, cause second bearing or the second ball serious wear, resistance big.
【The content of the invention】
To solve the above problems, using less, axle it is an object of the invention to provide a kind of simple in construction, freewheel clutch
Hold or the less gear of axle input type three internal speed changer of ball abrasion.
To achieve the above object, the technical scheme taken of the present invention is：A kind of axle input type three keeps off internal speed changer, including：
Central shaft, wheel hub and the gearshift being arranged between central shaft and wheel hub, planetary transmission and group retaining device, the central shaft
For power input, the wheel hub is power output member, and the planetary transmission includes：Centre wheel, planet carrier, planetary gear and tooth
Circle, the centre wheel is sheathed on central shaft and mutually fixed with vehicle frame, and freewheel clutch is provided between the planet carrier and wheel hub,
The gearshift includes：Shifting sleeve, ratchet, pallet piece frame and at least one pallet piece being installed on pallet piece frame, it is described
One end of shifting sleeve is provided with the first docking section, and one end of the planet carrier is provided with the second docking being engaged with the first docking section
Portion, when the first docking section is docked with the second docking section, planet carrier is realized with shifting sleeve and set on synchronous axial system, the pallet piece frame
There is the elastic component for controlling pallet piece initial position, the pallet piece frame is integrally formed or is fixedly connected with gear ring, described to change
Interstage sleeve is sheathed on central shaft and is slidably connected with central shaft formation, and the shifting sleeve drives it to move axially by dialling retaining device,
The shifting sleeve radial direction and central shaft synchronous axial system, the ratchet include the first ratchet being arranged in wheel hub and are arranged at gearshift
The second ratchet on outer circumference surface is covered, the pallet piece includes first end, the second end and positioned at first end and the second end
Middle installation portion between portion, the first end is provided with the first ratchet portion being engaged with the first ratchet, the second end
Provided with the second ratchet portion being engaged with the second ratchet.
Preferably, a kind of axle input type three gear internal speed changer in the present invention is further arranged to：The freewheel clutch
Including surmounting ratchet and surmounting ratchet, one of them for surmounting ratchet and surmounting in both ratchets is arranged on planet carrier, another
It is individual to be arranged in wheel hub.
Preferably, a kind of axle input type three gear internal speed changer in the present invention is further arranged to：Described group of retaining device bag
Include and dial pin, fix bar and back-moving spring, described group of pin is axially arranged in central shaft and can made axially relative to central shaft
Mobile, the fix bar is radially arranged in shifting sleeve and can relatively rotated with shifting sleeve formation, the central shaft be provided with
The chute that fix bar is engaged, the back-moving spring is arranged between shifting sleeve and bearing or ball.
Preferably, a kind of axle input type three gear internal speed changer in the present invention is further arranged to：The two ends of the wheel hub
Be respectively equipped with the end cap mutually fixed with vehicle frame, connected between the end cap and central shaft by ball or bearing, the end cap with
Connected between wheel hub by ball or bearing.
Preferably, a kind of axle input type three gear internal speed changer in the present invention is further arranged to：The elastic component is bullet
Spring, torsion spring or shell fragment.
Preferably, a kind of axle input type three gear internal speed changer in the present invention is further arranged to：The centre wheel and end
Lid is integrally formed.
Preferably, a kind of axle input type three gear internal speed changer in the present invention is further arranged to：On the shifting sleeve
First docking section is that the second docking section on external splines, the planet carrier is internal spline.
Preferably, a kind of axle input type three gear internal speed changer in the present invention is further arranged to：Outside the shifting sleeve
Periphery includes spline segment, ratchet section, cylindrical section and conical section, provided with sky between one end of the shifting sleeve conical section and end cap
Chamber.
Preferably, a kind of axle input type three gear internal speed changer in the present invention is further arranged to：The pallet piece frame is in
Annular shape is set, and several openings are offered on the pallet piece frame, and the middle installation portion sold through pallet piece installs pallet piece
In in opening.
Preferably, a kind of axle input type three gear internal speed changer in the present invention is further arranged to：Described shifting sleeve with
Central shaft is connected by spline.
Compared with prior art, the present invention has the advantages that：The gear internal speed changer of axle input type three in the present invention
With prior art compared to a set of freewheel clutch has only been used, the usage quantity of freewheel clutch is greatly reduced, so as to reduce
Noise is mutually fixed with resistance, the in addition end cap at the internal speed changer two ends in the present invention with vehicle frame, the weight and car of bicyclist
The weight of body itself by the whole pressure-bearings of the transmission of the bearing between wheel hub and end cap or ball on end cap, and cause end cap with
Bearing or ball pressure-bearing between central shaft is smaller, so as to reduce the abrasion of the bearing or ball.
【Brief description of the drawings】
Fig. 1 is the cross section structure diagram of three gear internal speed changers in the prior art.
Fig. 2 is the decomposition texture schematic diagram of three gear internal speed changers in the prior art.
Fig. 3 is the main structure diagram that axis input type three of the present invention keeps off internal speed changer.
Fig. 4 is the cross section structure diagram that axis input type three of the present invention keeps off internal speed changer.
Fig. 5 is the decomposition texture schematic diagram that axis input type three of the present invention keeps off internal speed changer.
In Fig. 1 and Fig. 2：1`, central shaft, 2`, wheel hub, 3`, shifting sleeve, 4`, planetary transmission, 40`, planet carrier, 41`,
Planetary gear, 42`, centre wheel, 43`, gear ring, 5`, group retaining device, 50`, group pin, 51`, fix bar, 6`, power input, 60
`, clutch shaft bearing, 61`, second bearing, 70`, the first freewheel clutch, 71`, the second freewheel clutch, 72`, the 3rd surmount from
Clutch.
Fig. 3 is into Fig. 5：1st, central shaft, 10, oval chute, 2, wheel hub, 3, gearshift, 30, shifting sleeve, 300, the
A docking part, 301, spline segment, 302, ratchet section, 303, cylindrical section, 304, conical section, 305, cavity, 31, pallet piece frame,
310th, elastic component, 311, opening, the 32, first ratchet, the 33, second ratchet, 34, pallet piece, 340, first end, 3400, first
Ratchet portion, 341, the second end, the 3410, second ratchet portion, 342, middle installation portion, 4, planetary transmission, 40, centre wheel, 41,
Planet carrier, the 410, second docking section, 42, planetary gear, 43, gear ring, 5, dial retaining device, 50, dial pin, 51, fix bar, 52, multiple
Position spring, the 6, first end cap, 60, clutch shaft bearing, 61, second bearing, the 7, second end cap, 70,3rd bearing, 71, fourth bearing,
8th, freewheel clutch, 80, surmount ratchet, 81, surmount ratchet.
【Embodiment】
Further detailed is made to a kind of gear of single wheel drive three speed change gear of the present invention below by specific embodiment
Thin description.
Join shown in Fig. 3 to Fig. 5, a kind of axle input type three keeps off internal speed changer, including：Central shaft 1, wheel hub 2 and it is arranged at
Gearshift 3, planetary transmission 4 and group retaining device 5 between heart axle 1 and wheel hub 2, the central shaft 1 is power input, institute
Wheel hub 2 is stated for power output member, one end of the wheel hub 2 is provided with the first end cap 6, passes through between first end cap 6 and wheel hub 2
Clutch shaft bearing 60 is connected, and is connected between first end cap 6 and central shaft 1 by second bearing 61, the other end of the wheel hub 2
Provided with the second end cap 7, connected between second end cap 7 and wheel hub 2 by 3rd bearing 70, second end cap 7 and center
Connected between axle 1 by fourth bearing 71, the end cap 7 of the first end cap 6 and second is mutually fixed with vehicle frame respectively, certainly at other
Embodiment in, can also change bearing into ball.
The planetary transmission 4 includes：Centre wheel 40, planet carrier 41, planetary gear 42 and gear ring 43,40 sets of the centre wheel
It is integrally formed on central shaft 1 and with the first end cap 6, freewheel clutch 8, institute is provided between the planet carrier 41 and wheel hub 2
Stating freewheel clutch 8 includes surmounting ratchet 80 and surmounting ratchet 81, and in the present embodiment, the ratchet 80 that surmounts is arranged at row
In carrier 41, the ratchet 81 that surmounts is arranged in wheel hub 2, and certainly in other implementations, the ratchet may also set up
In on planet carrier, the ratchet may also set up in wheel hub, can equally realize the present invention.
The gearshift 3 includes：Shifting sleeve 30, pallet piece frame 31, the first ratchet 32 being arranged in wheel hub 2, setting
In the second ratchet 33 on the outer circumference surface of shifting sleeve 30 and two pallet pieces 34 being installed on pallet piece frame 31, the shifting sleeve
30 one end is provided with the first docking section 300, and one end of the planet carrier 41 is provided with the second couple being engaged with the first docking section 300
Socket part 410, when the first docking section 300 is docked with the second docking section 410, planet carrier 41 realizes synchronous axial system with shifting sleeve 30,
In the present embodiment, first docking section 300 is external splines, and the second docking section 410 is internal spline, certainly other real
Apply in mode, docking mode is alternatively steel ball docking or irregularly-shaped hole docking, can equally realize the present invention, the pallet piece frame 31
The elastic component 310 for being used for controlling the initial position of pallet piece 34 is provided with, the elastic component 310 can be spring, torsion spring or shell fragment.
The pallet piece frame 31 is integrally formed with gear ring 43, and the shifting sleeve 30 is sheathed on central shaft 1 and with central shaft 1 by spline
Form slip to be located by connecting, the shifting sleeve 30 drives it to move axially by dialling retaining device 5, the pallet piece 34 includes first end
Portion 340, the second end 341 and the middle installation portion 342 between first end 340 and the second end 341, the first end
Portion 340 is provided with the first ratchet portion 3400 being engaged with the first ratchet 32, and the second end 341 is provided with and the phase of the second ratchet 33
The the second ratchet portion 3410 coordinated.The middle installation portion 342 is set provided with circular hole, the pallet piece frame 31 is installed in annular shape
Put, two openings 311 are offered on the pallet piece frame 31, sell the installation circular hole through pallet piece 34 to pacify pallet piece 34
Loaded in opening 311.The outer circumference surface of the shifting sleeve 30 includes spline segment 301, ratchet section 302, cylindrical section 303 and conical section
304, cavity 305 is provided between one end of the conical section 304 and the second end cap 7, ratchet section 302 sets the second ratchet 33
At position.
Described group of retaining device 5 includes dialling pin 50, fix bar 51 and back-moving spring 52, and described group of pin 50 is axially arranged in
Can move axially in central shaft 1 and relative to central shaft 1, the radial direction of fix bar 51 be arranged in shifting sleeve 30 it is interior and with gearshift
Set 30, which is formed, to be relatively rotated, and described group of pin 50 is vertical setting with fix bar 51, and the central shaft 1 is provided with and fix bar 51
The oval chute 10 being engaged, the back-moving spring 52 is arranged between shifting sleeve 30 and fourth bearing 71.Described group of gear machine
The operation principle of structure 5 is：Axial movement dial pin 50, dial pin 50 withstand fix bar 51 so that drive shifting sleeve 30 relative to
Central shaft 1 is moved axially, and the effect of back-moving spring 52 is the shifting sleeve after displacement 30 is returned to original position.
The operation principle of axis input type three of the present invention gear internal speed changer is：During bottom gear, pin 50 is dialled in axial movement, is made
The ratchet section 302 of shifting sleeve 30 is located at the position of pallet piece 34, and now the ratchet section 302 of shifting sleeve 30 matches with pallet piece 34
Close, when ratchet section 302 is engaged with pallet piece 34, the second ratchet portion of the second ratchet 33 and pallet piece 34 on shifting sleeve 30
3410 are meshed, while the first ratchet portion 3400 on pallet piece 34 is in disengaged condition with the first ratchet 32 in wheel hub 2, move
Power is inputted by central shaft 1, drives shifting sleeve 30 to rotate, due to the second spine of the second ratchet 33 and pallet piece 34 on shifting sleeve 30
Claw 3410 is meshed, and pallet piece 34 is arranged on pallet piece frame 31 again, therefore drives pallet piece frame 31 to rotate, due to pallet piece
Frame 31 is integrally formed with gear ring 43, therefore the synchronous axial system of gear ring 43, and gear ring 43 transmits power further through the transmission of planetary gear 42
To planet carrier 41, engaged due to being realized between planet carrier 41 and wheel hub 2 by freewheel clutch, therefore power is ultimately transferred to wheel
Hub 2 simultaneously carries out power output by wheel hub 2.During middle speed gear, pin 50 is dialled in axial movement, is located at the cylindrical section 303 of shifting sleeve 30
The position of pallet piece 34, makes the part of spline segment 301 of shifting sleeve 30 connect with the internal spline 410 of planet carrier, now shifting sleeve
30 cylindrical section is engaged with pallet piece 34, when the cylindrical section of shifting sleeve 30 is engaged with pallet piece 34, and the second of shifting sleeve 30
Second ratchet portion 3410 of ratchet 33 and pallet piece 34 is in disengaged condition, at the same the first ratchet portion 3400 on pallet piece 34 with
The first ratchet 32 in wheel hub 2 is in disengaged condition, the internal spline of the one end of planet carrier 41 and the external splines one of the one end of shifting sleeve 30
Part is meshed, and power is inputted by central shaft 1, drives shifting sleeve 30 to rotate, due to passing through between shifting sleeve 30 and planet carrier 41
Spline is connected, therefore drives planet carrier 41 to rotate, and is engaged due to being realized between planet carrier 41 and wheel hub 2 by freewheel clutch 8,
Therefore power is ultimately transferred to wheel hub 2 and carries out power output by wheel hub 2.During top gear, pin 50, shifting sleeve are dialled in axial movement
30 synchronous axial movements, make shifting sleeve 30 conical section 304 move past pallet piece 34 the second end, now pallet piece 34 second
End is located in cavity 305 between shifting sleeve 30 and end cap, the internal spline of the spline segment 301 of shifting sleeve 30 completely with planet carrier
410 connect, and the second ratchet portion 3410 of the second ratchet 33 and pallet piece 34 of shifting sleeve 30 is in disengaged condition, while pallet piece
The first ratchet portion 3400 on 34 is in engagement, planet carrier under the effect of elastic component 310 with the first ratchet 32 in wheel hub 2
The internal spline of 41 one end is meshed with the external splines of the one end of shifting sleeve 30, and freewheel clutch is in servo-actuated state during top gear, moves
Power is inputted by central shaft 1, drives shifting sleeve 30 to rotate, due to being connected between shifting sleeve 30 and planet carrier 41 by spline, therefore
Planet carrier 41 is driven to rotate, planet carrier 41 imparts power to gear ring 43 by the transmission of planetary gear 42, due to pallet piece frame 31
It is integrally formed with gear ring 43, pallet piece 34 is installed on pallet piece frame 31 again, therefore pallet piece 34 is rotated, due on pallet piece 34
The first ratchet portion 3400 be meshed with the first ratchet 32 in wheel hub 2, therefore power is ultimately transferred to wheel hub 2 and by wheel hub 2
Carry out power output.
In summary, the internal speed changer in the present invention greatly reduces noise with resistance, in addition the internal speed-changing in the present invention
The end cap at device two ends is mutually fixed with vehicle frame, and the weight of the weight and vehicle body itself of bicyclist passes through clutch shaft bearing, 3rd bearing
The whole pressure-bearings of transmission on end cap, and make it that second bearing, fourth bearing pressure-bearing are smaller, so as to reduce second bearing, the
The abrasion of four bearings.
The principle and its effect of the above embodiments only illustrative the invention, and the implementation that part is used
Example, not for the limitation present invention；It should be pointed out that for the person of ordinary skill of the art, not departing from wound of the present invention
On the premise of making design, various modifications and improvements can be made, these belong to protection scope of the present invention.
Claims (10)
1. a kind of axle input type three keeps off internal speed changer, it is characterised in that including：Central shaft, wheel hub and be arranged at central shaft with wheel
Gearshift, planetary transmission and group retaining device between hub, the central shaft are power input, and the wheel hub is that power is defeated
Go out part, the planetary transmission includes：Centre wheel, planet carrier, planetary gear and gear ring, the centre wheel are sheathed on central shaft simultaneously
Mutually fixed with vehicle frame, freewheel clutch is provided between the planet carrier and wheel hub, the gearshift includes：Shifting sleeve, ratchet,
Pallet piece frame and at least one pallet piece being installed on pallet piece frame, one end of the shifting sleeve are provided with the first docking section, institute
The one end for stating planet carrier is provided with the second docking section being engaged with the first docking section, when the first docking section is docked with the second docking section
When, planet carrier realizes synchronous axial system with shifting sleeve, and the pallet piece frame is provided with the elasticity for being used for controlling pallet piece initial position
Part, the pallet piece frame is integrally formed or is fixedly connected with gear ring, the shifting sleeve be sheathed on central shaft and with central shaft shape
Into being slidably connected, the shifting sleeve drives it to move axially by dialling retaining device, the shifting sleeve radial direction and central shaft synchronous axial system,
The ratchet includes the first ratchet being arranged in wheel hub and the second ratchet being arranged on shifting sleeve outer circumference surface, the ratchet
Part includes first end, the second end and the middle installation portion between first end and the second end, the first end
Provided with the first ratchet portion being engaged with the first ratchet, the second end is provided with the second ratchet being engaged with the second ratchet
Portion.
2. a kind of gear of axle input type three internal speed changer as claimed in claim 1, it is characterised in that：The freewheel clutch includes
Surmount ratchet and surmount ratchet, one of them for surmounting ratchet and surmounting in both ratchets is arranged on planet carrier, and another sets
It is placed in wheel hub.
3. a kind of gear of axle input type three internal speed changer as claimed in claim 1, it is characterised in that：Described group of retaining device includes dialling
Pin, fix bar and back-moving spring, described group of pin are axially arranged in central shaft and can moved axially relative to central shaft,
The fix bar is radially arranged in shifting sleeve and can relatively rotated with shifting sleeve formation, and the central shaft is provided with and fix bar
The chute being engaged, the back-moving spring is arranged between shifting sleeve and bearing or ball.
4. a kind of gear of axle input type three internal speed changer as claimed in claim 1, it is characterised in that：The two ends difference of the wheel hub
Provided with the end cap mutually fixed with vehicle frame, connected between the end cap and central shaft by ball or bearing, the end cap and wheel hub
Between pass through ball or bearing and connect.
5. a kind of gear of axle input type three internal speed changer as claimed in claim 1, it is characterised in that：The elastic component be spring,
Torsion spring or shell fragment.
6. a kind of gear of axle input type three internal speed changer as claimed in claim 1, it is characterised in that：The centre wheel and end cap one
It is body formed.
7. a kind of gear of axle input type three internal speed changer as claimed in claim 1, it is characterised in that：First on the shifting sleeve
Docking section is external splines, and the second docking section on the planet carrier is internal spline.
8. a kind of gear of axle input type three internal speed changer as claimed in claim 4, it is characterised in that：The excircle of the shifting sleeve
Face includes spline segment, ratchet section, cylindrical section and conical section, and cavity is provided between one end of the shifting sleeve conical section and end cap.
9. a kind of gear of axle input type three internal speed changer as claimed in claim 1, it is characterised in that：The pallet piece frame is in annulus
Shape is set, and several openings are offered on the pallet piece frame, and pallet piece is installed on out by the middle installation portion sold through pallet piece
It is intraoral.
10. a kind of gear of axle input type three internal speed changer as claimed in claim 1, it is characterised in that：Described shifting sleeve is with
Heart axle is connected by spline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710454467.7A CN107131263B (en) | 2017-06-14 | 2017-06-14 | Shaft input type three-gear inner speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710454467.7A CN107131263B (en) | 2017-06-14 | 2017-06-14 | Shaft input type three-gear inner speed changer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107131263A true CN107131263A (en) | 2017-09-05 |
| CN107131263B CN107131263B (en) | 2023-04-07 |
Family
ID=59734006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710454467.7A Active CN107131263B (en) | 2017-06-14 | 2017-06-14 | Shaft input type three-gear inner speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107131263B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107606075A (en) * | 2017-10-23 | 2018-01-19 | 张家港市九鼎机械有限公司 | A kind of centre wheel inputs the shift transmission of manual shift two |
| CN107600302A (en) * | 2017-10-23 | 2018-01-19 | 张家港市九鼎机械有限公司 | A kind of transmission shaft output speed variator |
| CN112413067A (en) * | 2020-11-23 | 2021-02-26 | 八方电气(苏州)股份有限公司 | Multi-gear adjusting speed change mechanism of middle-placed motor and middle-placed motor |
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| Publication number | Publication date |
|---|---|
| CN107131263B (en) | 2023-04-07 |
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