CN106494563B - Fixed single round of ring gear centre wheel directly drives multi-gear full-automatic derailleur - Google Patents
Fixed single round of ring gear centre wheel directly drives multi-gear full-automatic derailleur Download PDFInfo
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- CN106494563B CN106494563B CN201611193320.9A CN201611193320A CN106494563B CN 106494563 B CN106494563 B CN 106494563B CN 201611193320 A CN201611193320 A CN 201611193320A CN 106494563 B CN106494563 B CN 106494563B
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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
- B62M11/18—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears with a plurality of planetary gear units
Abstract
The invention discloses a gear ring center wheel fixed single-wheel direct-drive multi-gear full-automatic transmission, which comprises: center pin, wheel hub and speed change mechanism, speed change mechanism includes two sets of planetary transmission and at least one set of automatic centrifugal gearshift, planetary transmission includes: first planet derailleur and second planet derailleur, first planet derailleur includes first planet carrier, first ring gear, first planet wheel and first centre wheel, second planet derailleur includes second planet carrier, second ring gear, second planet wheel and second centre wheel, be equipped with freewheel clutch between first planet carrier and the wheel hub or between second planet carrier and the wheel hub, every set of automatic centrifugal gearshift includes: the ratchet piece frame is arranged in the hub, and the ratchet wheel is only arranged on the outer side of the second gear ring or is simultaneously arranged on the outer sides of the second gear ring and the second planet carrier.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of bicycles, in particular to a gear ring center wheel fixed single-wheel direct-drive multi-gear full-automatic transmission.
[ background of the invention ]
The bicycle speed changer is divided into an inner speed changer and an outer speed changer, the outer speed changer adopts an open chain mechanism as a transmission system, a chain is changed to different flywheels by shifting a gear shifter arranged in front of a bicycle to realize different chain transmission ratios, the outer speed changer is exposed outside, so the outer speed changer is easy to rust and easy to be interfered by external force, regular maintenance is often needed, the inner speed changer mainly adopts a planetary gear mechanism as a transmission main body, and is sealed inside a hub and protected by multiple layers of special sealing materials, so rainwater, dust, oil dirt and the like cannot enter, the regular maintenance is not needed, and the advantage of no maintenance is realized. The following disadvantages are common to prior art internal transmissions: 1. manual gear shifting is needed, and automatic gear shifting cannot be realized; 2. when the internal transmission is shifted into high gear, the kick frequency, if reduced, makes it difficult to maintain the transmission in high gear.
[ summary of the invention ]
In order to solve the problems, the invention aims to provide a gear ring center wheel fixed single-wheel direct-drive multi-gear full-automatic transmission capable of reducing the requirement on the step frequency.
In order to achieve the purpose, the invention adopts the technical scheme that: a fixed single round of multi-gear full-automatic derailleur that directly drives of ring gear centre wheel includes: the central shaft is a power input part, the hub is a power output part, the speed change mechanism comprises two sets of planetary transmissions and at least one set of automatic centrifugal gear shift mechanism, and the planetary transmissions comprise: first planet derailleur and second planet derailleur, first planet derailleur includes first planet carrier, first ring gear, first planet wheel and first centre wheel, second planet derailleur includes second planet carrier, second ring gear, second planet wheel and second centre wheel, first ring gear is fixed mutually with the frame, first planet carrier and center pin integrated into one piece or fixed connection, first centre wheel cover is located on the center pin, first centre wheel and second ring gear form an assembly, second centre wheel cover is located on the center pin and is fixed mutually with the frame, be equipped with freewheel clutch between first planet carrier and the wheel hub or between second planet carrier and the wheel hub, every set of automatic centrifugal gear shifting mechanism includes: the ratchet wheel is arranged on the second gear ring or on the second gear ring and the second planet carrier simultaneously.
Preferably, the gear ring center wheel fixed single-wheel direct-drive multi-gear full-automatic transmission is further configured as follows: the automatic centrifugal gear shifting mechanism further comprises at least one linkage piece, the pawl piece is installed on the pawl fixing frame through a first connecting piece, the linkage piece is installed on the pawl fixing frame through a second connecting piece, the pawl piece and the linkage piece are arranged at intervals in the circumferential direction, and the pawl piece comprises: the linkage piece comprises a third end part, a fourth end part and a second installation part, wherein the inner wall of the second end part of at least one pawl piece is provided with a pawl part matched with the ratchet wheel, the first installation part of the pawl piece is provided with a first installation hole used for installing a first connecting piece, the linkage piece comprises a third end part, a fourth end part and a second installation part arranged between the third end part and the fourth end part, the second installation part of the linkage piece is provided with a second installation hole used for installing a second connecting piece, the first end part of the pawl piece and/or the fourth end part of the linkage piece are/is provided with a balancing weight, the first end part of the pawl piece is limited at the inner side of the fourth end part of the linkage piece along the radius direction, the second end part of the pawl piece is limited at the inner side of the third end part of the linkage piece or the fourth end part of the linkage piece is limited at the inner side of the first end part of the pawl piece along the radius direction, The third end part of the linkage part is limited at the inner side of the second end part of the pawl part, and an elastic part for controlling the initial position of the pawl part is arranged on the pawl fixing frame or on the linkage part or on the pawl part.
Preferably, the gear ring center wheel fixed single-wheel direct-drive multi-gear full-automatic transmission is further configured as follows: the automatic centrifugal gear shifting mechanism further comprises at least one linkage piece, the pawl piece is mounted on the pawl fixing frame through a first connecting piece, one end of the linkage piece is movably connected with one adjacent pawl piece, the other end of the linkage piece is movably connected with the other adjacent pawl piece, the pawl piece and the linkage piece are arranged at intervals in the circumferential direction, the pawl piece comprises a first end portion, a second end portion and a first mounting portion arranged between the first end portion and the second end portion, a balancing weight is arranged at the first end portion of the pawl piece, a pawl portion matched with the ratchet wheel is arranged on the inner wall of the second end portion of at least one pawl piece, a first mounting hole used for mounting the first connecting piece is formed in the first mounting portion of the pawl piece, and an elastic piece used for controlling the initial position of the pawl piece is mounted on the pawl piece frame.
Preferably, the gear ring center wheel fixed single-wheel direct-drive multi-gear full-automatic transmission is further configured as follows: the elastic part is a torsion spring, a spring or a spring piece.
Preferably, the gear ring center wheel fixed single-wheel direct-drive multi-gear full-automatic transmission is further configured as follows: the pawl mount includes: the annular base and from the annular base's of the inner wall several mount pads that extend inwards, the pawl spare is installed on the mount pad.
Preferably, the gear ring center wheel fixed single-wheel direct-drive multi-gear full-automatic transmission is further configured as follows: the first connecting piece and the second connecting piece are pins.
Preferably, the gear ring center wheel fixed single-wheel direct-drive multi-gear full-automatic transmission is further configured as follows: the matching surface of the pawl piece and the linkage piece is arranged in an involute shape or an arc shape.
Preferably, the gear ring center wheel fixed single-wheel direct-drive multi-gear full-automatic transmission is further configured as follows: the first planet carrier is connected with the central shaft through a spline.
Preferably, the gear ring center wheel fixed single-wheel direct-drive multi-gear full-automatic transmission is further configured as follows: the one end of center pin is equipped with the boss, be equipped with bearing or ball between boss and the first ring gear, be equipped with bearing or ball between first ring gear and the wheel hub, the one end of second centre wheel is equipped with and binds the piece, be equipped with bearing or ball between second centre wheel and the piece of binding, be equipped with bearing or ball between second centre wheel and the wheel hub.
Compared with the prior art, the invention has the following beneficial effects: the gear ring center wheel fixed single-wheel direct-drive multi-gear full-automatic transmission has the advantages of compact structure, convenience in installation, high transmission efficiency, firm gear shifting and stable speed change.
[ description of the drawings ]
Fig. 1 is a schematic front view of a single-wheel direct-drive multi-gear full-automatic transmission with a fixed ring gear and a fixed center wheel in embodiment 1 of the invention.
Fig. 2 is an exploded structural schematic view of a single-wheel direct-drive multi-gear full-automatic transmission with a fixed ring gear and a fixed center wheel in embodiment 1 of the invention.
Fig. 3 is a schematic sectional view taken along line a-a of fig. 1.
Fig. 4 is a schematic structural view of the first automatic centrifugal shift mechanism in embodiment 1 of the invention.
Fig. 5 is a schematic sectional structure view of a single-wheel direct-drive multi-speed full-automatic transmission with a fixed ring gear and a fixed center wheel in embodiment 2 of the invention.
In the figure: 1. central shaft, 10, boss, 2, hub, 3, planetary transmission, 30, first planetary transmission, 300, first carrier, 301, first ring gear, 302, first planet wheel, 303, first central wheel, 31, second planetary transmission, 310, second carrier, 311, second ring gear, 312, second planet wheel, 313, second central wheel, 4, automatic centrifugal shifting mechanism, 40, first automatic centrifugal shifting mechanism, 400, first pawl carrier, 4000, elastic member, 401, first pawl, 4010, first end, 4011, second end, 4012, first mounting portion, 4013, pawl portion, 4014, first mounting hole, 4015, weight, 402, first linkage, 4020, third end, 4021, fourth end, 4022, second mounting portion, 4023, second mounting hole, 4024, weight 403, first ratchet wheel, 41, second automatic centrifugal shifting mechanism, 410. the second pawl member holder 411, the second pawl member 4110, the counterweight block 4111, the pawl part 412, the second linkage member 413, the second ratchet wheel 5, the overrunning clutch 50, the pawl 51, the ratchet wheel 6 and the fastening member.
[ detailed description ] embodiments
Example 1
Referring to fig. 1 to 4, a gear ring center wheel fixed single-wheel direct-drive multi-gear full-automatic transmission comprises: the automatic transmission comprises a central shaft 1, a hub 2 and a speed change mechanism arranged between the central shaft 1 and the hub 2, wherein the central shaft is a power input part, the hub is a power output part, and the speed change mechanism comprises two sets of planetary transmissions 3 and two sets of automatic centrifugal gear shifting mechanisms 4.
The planetary transmission 3 includes a first planetary transmission 30 and a second planetary transmission 31, the first planetary transmission 30 includes a first planet carrier 300, a first gear ring 301, a first planet wheel 302 and a first center wheel 303, the second planetary transmission 31 includes a second planet carrier 310, a second gear ring 311, a second planet wheel 312 and a second center wheel 313, the first gear ring 301 is fixed to the frame, the first planet carrier 300 is connected to the center shaft 1 through a spline, the first center wheel 303 is sleeved on the center shaft 1, the first center wheel 303 and the second gear ring 311 are integrally formed, the second center wheel 313 is sleeved on the center shaft 1 and fixed to the frame, an overrunning clutch 5 is disposed between the first planet carrier 300 and the hub, the overrunning clutch 5 includes a pawl 50 and a ratchet 51, in this embodiment, the pawl 50 is disposed on the first planet carrier 300, the ratchet wheel 51 is disposed in the hub 2, but in other embodiments, the pawl 50 may be disposed in the hub 2, and the ratchet wheel 51 may be disposed on the first carrier 300, so as to implement the present invention.
The automatic centrifugal shift mechanism 4 includes: the first automatic centrifugal gear shifting mechanism 40 includes a first pawl frame 400, three first pawls 401, three first linkages 402 and a first ratchet 403, the first pawl frame 400 is disposed in a wheel hub, the first ratchet 403 is disposed outside a second gear ring 311, an elastic member 4000 for controlling an initial position of the first pawl 401 is mounted on the first pawl frame 400, the elastic member 4000 may be a torsion spring, a spring or a leaf spring, and in other embodiments, the elastic member 4000 may be mounted on the first pawl 401 or the first linkage 402, which may also implement the present invention. The first pawl member 401 and the first linkage member 402 are both mounted on the first pawl member frame 400 by pins, the plurality of first pawl members 401 and the plurality of first linkage members 402 are arranged at intervals in the circumferential direction, and the first pawl member 401 includes: a first end 4010, a second end 4011 and a first mounting portion 4012 disposed between the first end 4010 and the second end 4011, wherein the first mounting portion 4012 of the first pawl member 401 is provided with a first mounting hole 4014 for mounting a pin, in this embodiment, a pawl portion 4013 matched with the first ratchet wheel 403 is disposed on an inner wall of the second end 4011 of each pawl member 401, and in other embodiments, only one pawl member 401 is provided with a pawl portion 4013 matched with the first ratchet wheel 403 on an inner wall of the second end 4011, or only two pawl members 401 are provided with pawl portions 4013 matched with the first ratchet wheel 403 on an inner wall of the second end 4011, so that the present invention can be implemented. The first linkage member 402 includes a third end 4020, a fourth end 4021 and a second mounting portion 4022 disposed between the third end 4020 and the fourth end 4021, the second mounting portion 4022 of the first linkage member 402 is provided with a second mounting hole 4023 for mounting a pin, the first end 4010 of the first pawl member 401 is provided with a weight block 4015, the fourth end 4021 of the first linkage member 402 is provided with a weight block 4024, the first end 4010 of the first pawl member 401 is radially limited inside the fourth end 4021 of the first linkage member 402, the second end 4011 of the first pawl member 401 is radially limited inside the third end 4020 of the first linkage member 402, so that not only can the pawl member generate a centrifugal force, but also the advantage can be generated by the linkage member, thereby greatly increasing the centrifugal force of the centrifugal mechanism and further miniaturizing the whole centrifugal mechanism, meanwhile, the centrifugal mechanism with the structure can be provided with more centrifugal pawls, so that the whole centrifugal mechanism is higher in stability during working. The matching surfaces of the first pawl 401 and the first linkage piece 402 are arranged in an involute shape or an arc shape, so that the swing angle of the first pawl 401 and the swing angle of the first linkage piece 402 can be kept consistent. The second automatic centrifugal shift mechanism 41 has the same structure as the first automatic centrifugal shift mechanism 40, and includes a second pawl frame 410, three second pawls 411, three second linkages 412, and a second ratchet 413, where the second pawl frame 410 is disposed in the hub 2, and the second ratchet 413 is disposed outside the second carrier 310, in this embodiment, the first automatic centrifugal shift mechanism 40 and the second automatic centrifugal shift mechanism 41 are both provided with three pawls and three linkages, but in other embodiments, no linkage, only one linkage, or only one pawl may be provided, and the present invention may also be implemented. Of course, in other embodiments, the automatic centrifugal gear shifting mechanism may also be a structure in which one end of the link is movably connected with one of the adjacent pawls, and the other end of the link is movably connected with the other adjacent pawl, that is, the link may be respectively movably connected with two adjacent pawls by bending both ends or directly movably connected with two adjacent pawls by a pin, and at this time, the link acts as a linkage function equivalent to a balance pull rod, and the present invention can also be implemented.
The one end of center pin 1 is equipped with boss 10, be equipped with bearing or ball between boss 10 and the first ring gear 301, be equipped with bearing or ball between first ring gear 301 and the wheel hub, piece 6 that merges is installed to the one end of second centre wheel 313, be equipped with bearing or ball between second centre wheel 313 and piece 6 that merges, be equipped with bearing or ball between second centre wheel 313 and the wheel hub 2.
The working principle of the single-wheel direct-drive full-automatic transmission with the fixed gear ring center wheel is as follows: in the first gear low speed, the pawl 50 in the overrunning clutch 5 is a normally open pawl, that is, the first carrier 300 and the hub 2 are always kept in an engaged state, power is input from the central shaft 1, because the first carrier 300 is fixed with the central shaft 1, the first carrier 300 is kept engaged with the hub 2, and therefore power is finally transmitted to the hub 2 and is output by the hub 2, so as to realize the first gear low speed, as the speed of the central shaft 1 increases, the end of the weight block 4110 of the second pawl member 411 of the second automatic centrifugal gear shifting mechanism 41 moves in a direction away from the shaft center under the action of centrifugal force, because the weight block 4110 and the pawl portion 4111 of the second pawl member 411 are respectively arranged at both ends of the second pawl member 411, based on the lever principle, the end of the pawl portion 4111 of the second pawl member 411 moves in the shaft center direction, so as to engage with the second ratchet 413 on the second carrier 310, when the second automatic centrifugal gear shifting mechanism 41 works, the overrunning clutch 5 is in a follow-up state, power is input from the central shaft 1, power is transmitted to the first planet carrier 300 because the first planet carrier 300 is fixedly connected with the central shaft 1, the power is transmitted to the second ring gear 311 through the transmission of the first planet gear 302, the first planet carrier 300 transmits the power to the first center wheel 303, the power is transmitted to the second ring gear 311 because the first center wheel 303 and the second ring gear 311 are integrally formed, the power is transmitted to the second planet carrier 310 through the transmission of the second planet gear 312, the power is transmitted to the second planet carrier 310 through the second ring gear 311, the power is finally transmitted to the hub 2 and is output by the hub 2 because the second planet carrier 310 is meshed with the hub 2, two-gear medium speed is realized, when the rotating speed of the central shaft 1 is further increased, the balancing weight 4015 end of the first automatic centrifugal gear shifting mechanism 40 moves in a direction far away from the shaft center under the action of centrifugal force, because the weight block 4015 and the pawl portion 4013 of the first pawl member 401 are respectively disposed at two ends of the first pawl member 401, based on the lever principle, the end of the pawl portion 4013 of the first pawl member 401 moves toward the axial direction to engage with the first ratchet 403 on the second ring gear 311, when the first automatic centrifugal shift mechanism 40 operates, the second automatic centrifugal shift mechanism 41 and the overrunning clutch 5 are in a follow-up state, power is input from the central shaft 1, because the first planet carrier 300 is fixedly connected with the central shaft 1, power is transmitted to the first planet carrier 300, through the transmission of the first planet wheel 302, the first planet carrier 300 transmits power to the first central wheel 303, because the first central wheel 303 and the second ring gear 311 are integrally formed, power is transmitted to the second ring gear 311, because the second ring gear 311 engages with the hub 2, power is finally transmitted to the hub 2 and is output by the hub 2, and the high speed of the third gear is realized. The single-wheel direct-drive three-gear full-automatic transmission can reduce the requirement on the step frequency in middle and high gears, such as: assuming that the opening working speeds of the pawls of the first and second automatic centrifugal shifting mechanisms are 160 rpm and 80 rpm respectively, the speed ratio of the first planetary mechanism is 1:3, the speed ratio of the second planetary mechanism is 1.5:1, when the central shaft inputs 70 rpm, the rotation speed of the hub is the same as the input rotation speed of the central shaft, namely 70 rpm, because the pawls of the first and second automatic centrifugal shifting mechanisms are both mounted on the hub, the pawls of the first and second automatic centrifugal shifting mechanisms cannot be opened at this time, the power 1:1 is output from the hub to realize a first-gear low speed, when the input rotation speed of the central shaft reaches 80 rpm, the rotation speed of the hub also reaches 80 rpm, the pawls of the second automatic centrifugal shifting mechanism are opened and meshed with the ratchet wheel of the second planet carrier to realize a second-gear medium speed, at this time, the rotation speed of 160 rpm of the second planetary carrier (80 rpm: speed ratio 3/speed ratio 1.5) is much greater than the operating rotation speed of 80 rpm at which the pawls of the second automatic centrifugal mechanism are opened, so that the input rotation speed of the center shaft, that is, the depressing frequency can be reduced. In the operating state that the pawl of the second automatic centrifugal mechanism is opened, when the input rotation speed of the central shaft is increased to 80 revolutions per minute again, the rotation speed of the hub is 160 revolutions per minute (80 revolutions per minute speed ratio 3/speed ratio 1.5), the pawl of the first automatic centrifugal gear shifting mechanism is opened and meshed with the ratchet wheel of the second gear ring, and a three-gear high-speed gear is realized, at the moment, the rotation speed of the second gear ring is 240 revolutions per minute (8 revolutions per minute speed ratio 3) and is far greater than the operating rotation speed of the first automatic centrifugal mechanism of 160 revolutions per minute when the pawl is opened, so the input rotation speed of the central shaft can be reduced, namely the trampling frequency can be reduced. Through a series of improvement input rotational speed, realize automatic centrifugal shift, reduce and trample the frequency, improve input rotational speed once more, realize this automatic centrifugal shift cycle of higher level automatic centrifugal shift once more.
Example 2
Referring to fig. 5, the remaining structure of the gear ring center wheel fixed single-wheel direct-drive multi-gear full-automatic transmission in the present embodiment is the same as that in embodiment 1, except that: in embodiment 1, two sets of automatic centrifugal shifting mechanisms are provided, and the overrunning clutch is provided between the first carrier and the hub, whereas in the present embodiment, one set of automatic centrifugal shifting mechanisms is provided, and in comparison with embodiment 1, embodiment 2 removes the second automatic centrifugal shifting mechanism in embodiment 1, and provides the overrunning clutch originally provided between the first carrier and the hub at a position where the second automatic centrifugal shifting mechanism is removed.
The operating principle of the single-wheel direct-drive multi-gear full-automatic transmission with the fixed gear ring and the central wheel in the embodiment is as follows: in the first gear low speed, the pawl 50 in the overrunning clutch 5 is a normally open pawl, that is, the second planet carrier and the hub are always in an engaged state, power is input from the central shaft 1, the first planet carrier 300 is fixedly connected with the central shaft 1, so that power is transmitted to the first planet carrier 300, the first planet carrier 300 transmits power to the first central wheel 303 through transmission of the first planet wheel 302, the first central wheel 303 and the second ring 311 are integrally formed, so that power is transmitted to the second ring 311, the second ring 311 transmits power to the second planet carrier 310 through transmission of the second planet wheel 312, since the second planet carrier 310 is engaged with the hub 2, power is finally transmitted to the hub 2 and is output by the hub 2, the 1-gear low speed is realized, when the rotating speed of the central shaft 1 is further increased, the counterweight end of the first ratchet pawl 401 of the first automatic centrifugal shifting mechanism 40 moves in a direction away from the shaft center under the action of centrifugal force, because the counterweight block and the pawl portion of the first pawl 401 are respectively disposed at both ends of the first pawl 401, based on the lever principle, the end of the pawl of the first pawl 401 moves toward the axial center, thereby engaging with the first ratchet wheel 403 on the second ring gear 311, when the first automatic centrifugal gear shifting mechanism 40 works, the overrunning clutch 5 is in a follow-up state, power is input by the central shaft 1, since the first planet carrier 300 is fixedly coupled with the central shaft 1, power is transmitted to the first planet carrier 300, by the transmission of the first planet wheel 302, the first planet carrier 300 transmits power to the first centre wheel 303, since the first center gear 303 is integrally formed with the second ring gear 311, power is transmitted to the second ring gear 311, since the second ring gear 311 is engaged with the hub 2, the power is finally transmitted to the hub 2 and is output from the hub 2, thereby achieving the second gear high speed.
In conclusion, the gear ring center wheel fixed single-wheel direct-drive multi-gear full-automatic transmission is compact in structure, convenient to install, high in transmission efficiency, firm in gear shifting and stable in speed change, and the requirement on pedaling frequency can be reduced when the transmission is in a middle gear or a high gear, so that riding is easier.
The above-mentioned embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments may be used, not restrictive; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (9)
1. The utility model provides a fixed single round of ring gear centre wheel directly drives multi-gear full automatic transmission which characterized in that includes: the central shaft is a power input part, the hub is a power output part, the speed change mechanism comprises two sets of planetary transmissions and at least one set of automatic centrifugal gear shift mechanism, and the planetary transmissions comprise: first planet derailleur and second planet derailleur, first planet derailleur includes first planet carrier, first ring gear, first planet wheel and first centre wheel, second planet derailleur includes second planet carrier, second ring gear, second planet wheel and second centre wheel, first ring gear is fixed mutually with the frame, first planet carrier and center pin integrated into one piece or fixed connection, first centre wheel cover is located on the center pin, first centre wheel and second ring gear form an assembly, second centre wheel cover is located on the center pin and is fixed mutually with the frame, be equipped with freewheel clutch between first planet carrier and the wheel hub or between second planet carrier and the wheel hub, every set of automatic centrifugal gear shifting mechanism includes: the ratchet wheel is arranged on the second gear ring or on the second gear ring and the second planet carrier simultaneously.
2. The full-automatic transmission of claim 1, wherein the single-wheel direct-drive multi-gear full-automatic transmission with the fixed gear ring and the central wheel is characterized in that: the automatic centrifugal gear shifting mechanism further comprises at least one linkage piece, the pawl piece is installed on the pawl fixing frame through a first connecting piece, the linkage piece is installed on the pawl fixing frame through a second connecting piece, the pawl piece and the linkage piece are arranged at intervals in the circumferential direction, and the pawl piece comprises: the linkage piece comprises a third end part, a fourth end part and a second installation part, wherein the inner wall of the second end part of at least one pawl piece is provided with a pawl part matched with the ratchet wheel, the first installation part of the pawl piece is provided with a first installation hole used for installing a first connecting piece, the linkage piece comprises a third end part, a fourth end part and a second installation part arranged between the third end part and the fourth end part, the second installation part of the linkage piece is provided with a second installation hole used for installing a second connecting piece, the first end part of the pawl piece and/or the fourth end part of the linkage piece are/is provided with a balancing weight, the first end part of the pawl piece is limited at the inner side of the fourth end part of the linkage piece along the radius direction, the second end part of the pawl piece is limited at the inner side of the third end part of the linkage piece or the fourth end part of the linkage piece is limited at the inner side of the first end part of the pawl piece along the radius direction, The third end part of the linkage part is limited at the inner side of the second end part of the pawl part, and an elastic part for controlling the initial position of the pawl part is arranged on the pawl fixing frame or on the linkage part or on the pawl part.
3. The full-automatic transmission of claim 1, wherein the single-wheel direct-drive multi-gear full-automatic transmission with the fixed gear ring and the central wheel is characterized in that: the automatic centrifugal gear shifting mechanism further comprises at least one linkage piece, the pawl piece is mounted on the pawl fixing frame through a first connecting piece, one end of the linkage piece is movably connected with one adjacent pawl piece, the other end of the linkage piece is movably connected with the other adjacent pawl piece, the pawl piece and the linkage piece are arranged at intervals in the circumferential direction, the pawl piece comprises a first end portion, a second end portion and a first mounting portion arranged between the first end portion and the second end portion, a balancing weight is arranged at the first end portion of the pawl piece, a pawl portion matched with the ratchet wheel is arranged on the inner wall of the second end portion of at least one pawl piece, a first mounting hole used for mounting the first connecting piece is formed in the first mounting portion of the pawl piece, and an elastic piece used for controlling the initial position of the pawl piece is mounted on the pawl piece frame.
4. A full-automatic transmission with a fixed ring gear, a fixed center gear, a single direct-drive and multiple gears as claimed in claim 2 or 3, characterized in that: the elastic part is a torsion spring, a spring or a spring piece.
5. A full-automatic transmission with a fixed ring gear, a fixed center gear, a single direct-drive and multiple gears as claimed in claim 2 or 3, characterized in that: the pawl mount includes: the annular base and from the annular base's of the inner wall several mount pads that extend inwards, the pawl spare is installed on the mount pad.
6. The full-automatic transmission of claim 2, wherein the single-wheel direct-drive multi-gear full-automatic transmission with the fixed gear ring and the central wheel is characterized in that: the first connecting piece and the second connecting piece are pins.
7. The full-automatic transmission of claim 1, wherein the single-wheel direct-drive multi-gear full-automatic transmission with the fixed gear ring and the central wheel is characterized in that: the matching surface of the pawl piece and the linkage piece is arranged in an involute shape or an arc shape.
8. The full-automatic transmission of claim 1, wherein the single-wheel direct-drive multi-gear full-automatic transmission with the fixed gear ring and the central wheel is characterized in that: the first planet carrier is connected with the central shaft through a spline.
9. The full-automatic transmission of claim 1, wherein the single-wheel direct-drive multi-gear full-automatic transmission with the fixed gear ring and the central wheel is characterized in that: the one end of center pin is equipped with the boss, be equipped with bearing or ball between boss and the first ring gear, be equipped with bearing or ball between first ring gear and the wheel hub, the one end of second centre wheel is equipped with and binds the piece, be equipped with bearing or ball between second centre wheel and the piece of binding, be equipped with bearing or ball between second centre wheel and the wheel hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611193320.9A CN106494563B (en) | 2016-12-21 | 2016-12-21 | Fixed single round of ring gear centre wheel directly drives multi-gear full-automatic derailleur |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611193320.9A CN106494563B (en) | 2016-12-21 | 2016-12-21 | Fixed single round of ring gear centre wheel directly drives multi-gear full-automatic derailleur |
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| CN106494563A CN106494563A (en) | 2017-03-15 |
| CN106494563B true CN106494563B (en) | 2022-02-11 |
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| CN201611193320.9A Active CN106494563B (en) | 2016-12-21 | 2016-12-21 | Fixed single round of ring gear centre wheel directly drives multi-gear full-automatic derailleur |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106969102B (en) * | 2017-05-11 | 2023-09-22 | 张家港川梭车业有限公司 | Single-wheel driving pawl movable gear shifting two-gear speed changing device |
| CN106949200B (en) * | 2017-05-11 | 2023-09-22 | 张家港川梭车业有限公司 | Movable gear shifting three-gear speed changing device with two-wheel driving pawls |
| CN106985964B (en) * | 2017-05-11 | 2022-05-13 | 张家港川梭车业有限公司 | Movable gear-shifting three-gear speed change device with single-wheel drive pawl |
| 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 |
| CN108974243B (en) * | 2018-09-12 | 2024-02-13 | 昆山唐泽新能源科技有限公司 | Automatic speed-changing hub |
| CN109185406B (en) * | 2018-11-14 | 2023-09-22 | 张家港川梭车业有限公司 | Single rear wheel direct drive transmission |
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|---|---|---|---|---|
| GB1090410A (en) * | 1965-05-29 | 1967-11-08 | Raleigh Industries Ltd | Epicyclic change speed gear hubs |
| DE19720796B4 (en) * | 1997-05-16 | 2005-10-20 | Bernhard Rohloff | Multi-speed gear hub for bicycles |
| DE602007011028D1 (en) * | 2007-01-18 | 2011-01-20 | Shimano Kk | Drive hub for a bicycle and method for shifting such a drive hub |
| TW201125775A (en) * | 2010-01-26 | 2011-08-01 | Univ Nat Sun Yat Sen | Sixteen-speed drive hub for bicycles |
| CN103863515B (en) * | 2012-12-07 | 2016-04-27 | 东莞环美能源科技发展有限公司 | For the transmission device of wheel |
| CN106114747B (en) * | 2016-07-22 | 2018-08-28 | 张家港川梭车业有限公司 | A kind of bicycle use three-step gear shift driving device |
| CN206511066U (en) * | 2016-12-21 | 2017-09-22 | 张家港川梭车业有限公司 | A kind of gear ring center wheel fixes single-wheel and directly drives multi gear fully-automatic gearbox |
-
2016
- 2016-12-21 CN CN201611193320.9A patent/CN106494563B/en active Active
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