CN107588161B - Gear ring input double-wheel drive full-automatic multi-gear transmission - Google Patents
Gear ring input double-wheel drive full-automatic multi-gear transmission Download PDFInfo
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- CN107588161B CN107588161B CN201710995072.8A CN201710995072A CN107588161B CN 107588161 B CN107588161 B CN 107588161B CN 201710995072 A CN201710995072 A CN 201710995072A CN 107588161 B CN107588161 B CN 107588161B
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- pawl
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 80
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 230000008859 change Effects 0.000 claims abstract description 15
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Abstract
The invention discloses a gear ring input double-wheel drive full-automatic multi-gear transmission, which comprises: a power input, a central shaft, a pawl cage, and a speed change mechanism comprising: the planetary gear sets and the automatic centrifugal gear shifting mechanisms of several sets, every planetary gear set includes: the automatic centrifugal gear shifting mechanism comprises a gear ring, a central wheel, a planet carrier and planet gears, wherein in every two sets of adjacent planetary transmissions, the gear ring of one set of planetary transmission and the planet carrier of the other set of planetary transmission form an assembly, the gear ring of one set of planetary transmission is fixedly connected with a power input part, an overrunning clutch is arranged between the planet carrier of the other set of planetary transmission and the pawl carrier, the pawl carrier is fixedly connected with a central shaft, each set of automatic centrifugal gear shifting mechanism comprises a ratchet wheel and at least one pawl, the ratchet wheel is arranged on the gear ring and the assembly, and the pawl is arranged on the pawl carrier, so that the centrifugal force of the pawl is greatly improved.
Description
[ field of technology ]
The invention relates to the technical field of bicycles, in particular to a gear ring input double-wheel drive full-automatic multi-gear transmission.
[ background Art ]
Please refer to chinese patent No. 201621410765.3, which discloses a center wheel fixed type double-wheel driving multi-gear full automatic transmission, comprising: the power input piece, center pin, ratchet cover and set up the speed change mechanism between center pin and ratchet cover, speed change mechanism includes: several sets of automatic centrifugal gearshift and several sets of planetary gear sets that set up side by side, every set of planetary gear set includes: the automatic centrifugal gear shifting mechanism comprises a gear ring, a central wheel, a planet carrier and planet gears, wherein in every two sets of adjacent planetary transmissions, the gear ring of one set of planetary transmission and the planet carrier of the other set of planetary transmission form an assembly, a power input part is arranged on a ratchet wheel sleeve, the planet carrier of one set of planetary transmission in a plurality of sets of planetary transmissions is fixedly connected with a central shaft or integrally formed, an overrunning clutch is arranged between the gear ring of the final end planetary transmission and the inner wall of the ratchet wheel sleeve, each set of automatic centrifugal gear shifting mechanism comprises a pawl carrier, a ratchet wheel and at least one pawl, the pawl carrier is arranged on the assembly or the planet carrier, and the ratchet wheel is arranged in the ratchet wheel sleeve. The transmission of this construction has the following drawbacks: 1. in the radial direction, the pawl is arranged inside, and the ratchet wheel is arranged outside, so that the movable range of the pawl is very limited, and the centrifugal force generated by the pawl is small, thereby influencing the shifting performance; 2. because the pawl carrier is arranged on the assembly or the planet carrier, the assembly and the planet carrier are arranged in the ratchet sleeve, so that the internal structure of the whole transmission is too complex, and the manufacturing difficulty is increased.
Accordingly, there is a need for a ring gear input dual-drive full-automatic multi-speed transmission that solves the above-identified problems.
[ invention ]
In order to solve the problems, the invention aims to provide a gear ring input double-wheel drive full-automatic multi-gear transmission capable of improving the centrifugal force of pawls.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: a ring gear input two-wheel drive full-automatic multi-speed transmission comprising: a power input, a central shaft, a pawl cage, and a speed change mechanism disposed between the central shaft and the pawl cage, the speed change mechanism comprising: several sets of planetary gear sets and several sets of automatic centrifugal gearshift that set up side by side, every set of planetary gear sets includes: the automatic centrifugal gear shifting mechanism comprises a central shaft, a plurality of sets of planetary gear transmissions, a central wheel, a planet carrier and planet gears, wherein the central wheel is sleeved on the central shaft and is fixedly connected or in shock absorption connection with the frame, the central wheels of the sets of planetary gear transmissions are integrally formed or separately arranged, in every two sets of planetary gear transmissions, the gear ring of one set of planetary gear transmissions and the planet carrier of the other set of planetary gear transmissions form an assembly, the gear ring of one set of planetary gear transmissions is fixedly connected or integrally formed with a power input part, an overrunning clutch is arranged between the planet carrier of the other set of planetary gear transmissions and the pawl carrier, the pawl carrier is fixedly connected or integrally formed with the central shaft, each set of automatic centrifugal gear shifting mechanism comprises a ratchet wheel and at least one pawl, the ratchet wheel is arranged on the gear ring of the planetary gear and the assembly, the pawl is arranged on the pawl carrier, and an elastic part for controlling the initial position of the pawl is arranged on the pawl carrier.
Preferably, a ring gear input two-wheel drive full-automatic multi-speed transmission in the present invention is further provided with: the center of the pawl is mounted to the pawl cage by a pin and one end of the pawl is provided with a weight.
Preferably, a ring gear input two-wheel drive full-automatic multi-speed transmission in the present invention is further provided with: when the number of the pawls in each automatic centrifugal shifting mechanism is two or more, the pawls are connected by the link.
Preferably, a ring gear input two-wheel drive full-automatic multi-speed transmission in the present invention is further provided with: the pawl cage includes: the pawl is arranged in the hollowed-out parts.
Preferably, a ring gear input two-wheel drive full-automatic multi-speed transmission in the present invention is further provided with: the elastic piece is a torsion spring, a spring or a spring piece.
Preferably, a ring gear input two-wheel drive full-automatic multi-speed transmission in the present invention is further provided with: the pawl holder is in spline connection with the central shaft.
Preferably, a ring gear input two-wheel drive full-automatic multi-speed transmission in the present invention is further provided with: the overrunning clutch includes an overrunning pawl and an overrunning ratchet, one of which is disposed on the pawl carrier and the other of which is disposed on the carrier of the end planetary transmission.
Compared with the prior art, the invention has the following beneficial effects: according to the gear ring input double-wheel drive full-automatic multi-gear transmission, the pawl rack and the pawl are arranged outside, and the ratchet wheel is arranged inside, so that the structure of the transmission is greatly simplified, the manufacturing difficulty and the manufacturing cost are reduced, in addition, the pawl is arranged outside, the movable position of the pawl is not limited, the centrifugal force of the pawl is greatly improved, and the gear shifting performance of the transmission is further improved.
[ description of the drawings ]
Fig. 1 is a schematic perspective view of a full automatic transmission according to the present invention.
Fig. 2 is a schematic diagram of a front view of a full automatic transmission according to the present invention.
Fig. 3 is a schematic cross-sectional view taken along line A-A of fig. 2.
Fig. 4 is a schematic cross-sectional view taken along line B-B of fig. 2.
In fig. 1 to 4: 1. a power input, 2, a center shaft, 3, a pawl carrier, 30, a spacer, 31, a hollow, 4, a planetary transmission, 40, a first planetary transmission, 400, a first center wheel, 401, a first carrier, 402, a first planetary, 403, a first ring gear, 41, a second planetary transmission, 410, a second center wheel, 411, a second carrier, 412, a second planetary wheel, 413, a second ring gear, 42, a third planetary transmission, 420, a third center wheel, 421, a third carrier, 422, a third planetary wheel, 423, a third ring gear, 5, an automatic centrifugal shift mechanism, 50, a first automatic centrifugal shift mechanism, 500, a first ratchet, 501, a first pawl, 5010, a first end, 5011, a second end, 5012, an intermediate mount, 5013, a weight, 502, a linkage, 51, a second automatic centrifugal shift mechanism, 510, a second ratchet, 511, a second pawl, 52, a third automatic centrifugal shift mechanism, 520, a third ratchet, 6, a first ratchet, 7, a second ratchet, 521, an overrunning pin, an overrunning clutch, and an overrunning combination thereof.
[ detailed description ] of the invention
The following describes a gear ring input two-wheel drive full-automatic multi-speed transmission according to the present invention in further detail by way of specific examples.
Referring to fig. 1 to 4, the ring gear input two-wheel drive full-automatic multi-speed transmission of the present invention includes: the power input member 1, the central shaft 2, the pawl carrier 3 and a speed change mechanism arranged between the pawl carrier 3 and the central shaft 2, wherein the speed change mechanism comprises three sets of planetary speed change mechanisms 4 and three sets of automatic centrifugal shift mechanisms 5 which are arranged side by side, and in the embodiment, the speed change mechanisms realize four-gear speed change in total, so that the three sets of automatic centrifugal shift mechanisms 5 and the three sets of planetary speed change mechanisms 4 are arranged, and of course, in other embodiments, the number of the automatic centrifugal shift mechanisms and the planetary speed change mechanisms can be increased or decreased according to the specific gear number required to be set. The pawl holder 3 is fixedly connected with the central shaft 2 through a spline, and the pawl holder 3 comprises a plurality of spacing parts 30 and a plurality of hollow parts 31 separated by the plurality of spacing parts 30.
The planetary transmission 4 comprises a first planetary transmission 40, a second planetary transmission 41 and a third planetary transmission 42 which are sequentially arranged from right to left, the first planetary transmission 40 comprises a first central wheel 400, a first planet carrier 401, a first planet wheel 402 and a first gear ring 403, the power input piece 1 and the first gear ring 403 are integrally formed, the second planetary transmission 41 comprises a second central wheel 410, a second planet carrier 411, a second planet wheel 412 and a second gear ring 413, the third planetary transmission 42 comprises a third central wheel 420, a third planet carrier 421, a third planet wheel 422 and a third gear ring 423, the first planet carrier 401 and the second gear ring 413 are integrally formed into a first assembly 6, the second planet carrier 411 and the third gear ring 423 are integrally formed into a second assembly 7, an overrunning clutch 8 is arranged between the third planet carrier 421 and the pawl carrier 3, and the overrunning clutch 8 has the function that the carrier 3 can be in a rotating state when the power input piece 1 stops running. The overrunning clutch 8 includes an overrunning pawl 80 and an overrunning ratchet 81, wherein in the present embodiment, the overrunning pawl 80 is disposed on the pawl carrier 3, and the overrunning ratchet 81 is disposed on the third carrier 421, and of course, in other embodiments, the overrunning pawl 80 may be disposed on the third carrier, and the overrunning ratchet 81 may be disposed on the pawl carrier, which may also implement the present invention.
The automatic centrifugal shift mechanism 5 includes a first automatic centrifugal shift mechanism 50, a second automatic centrifugal shift mechanism 51, and a third automatic centrifugal shift mechanism 52, and the first automatic centrifugal shift mechanism 50 includes: the first ratchet 500 and two first pawls 501, be equipped with the linkage piece 502 between two first pawls 501, first ratchet 500 sets up on first ring gear 403 and with first ring gear 403 integrated into one piece, first pawl 501 sets up in the fretwork portion 31 department of pawl holder 3, first pawl 501 includes first end 5010, second end 5011 and sets up the intermediate mount portion 5012 between first end 5010 and second end 5011, thereby the round pin 9 passes intermediate mount portion 5012 and installs first pawl 501 on pawl holder 3, first end 5010 is equipped with balancing weight 5013, second automatic centrifugal shift mechanism 51 includes: the second ratchet 510 and two second pawls 511, the second ratchet 510 is disposed on the first assembly 6 and is integrally formed with the first assembly 6, the second pawls 511 are disposed at the hollow portions of the pawl cage 3, and the third automatic centrifugal shifting mechanism 52 includes: the third ratchet wheel 520 and two third pawls 521 are disposed on the second assembly 7 and integrally formed with the second assembly 7, the third pawls 521 are disposed at the hollowed-out portions 31 of the pawl cage 3, and the first pawl 501, the second pawl 511 and the third pawl 521 are identical in structure and are disposed side by side on the pawl cage 3. According to the invention, the pawl cage 3 is arranged at the outermost end of the whole transmission, and the first pawl 501, the second pawl 511 and the third pawl 521 are respectively arranged at the hollowed-out parts 31 of the pawl cage 3, so that the movable positions of the first pawl 501, the second pawl 511 and the third pawl 521 are not limited, the centrifugal force of the pawls is greatly improved, and the shifting performance of the transmission is further improved.
The working principle of the transmission in the invention is as follows: the overrunning clutch in the invention is in a constant meshing state, namely, the overrunning pawl 80 on the pawl carrier 3 and the overrunning ratchet 81 on the third planet carrier 421 are always in a meshing state, the transmission in the invention realizes four-gear speed change altogether, the first automatic centrifugal gear shifting mechanism 50, the second automatic centrifugal gear shifting mechanism 51 and the third automatic centrifugal gear shifting mechanism 52 are all in a disengaging state in low-speed gear, power is input by the first gear ring 403, the first gear ring 403 transmits power to the first planet carrier 401 through the transmission of the first planet gears, the second gear ring 413 rotates because the first planet carrier 401 and the second gear ring 413 are integrally formed, the second gear ring 413 transmits power to the second planet carrier 411 through the transmission of the second planet gears 412, the third gear ring 423 rotates because the second planet carrier 411 and the third gear ring 423 are integrally formed, the third gear ring 423 rotates through the transmission of the third planet gears 422, the third gear ring 423 transmits power to the third planet carrier 421, the process is a step-by-step deceleration process, because the overrun ratchet 81 on the third planet carrier 421 is meshed with the overrun pawl 80 on the pawl carrier 3, the pawl carrier 3 rotates, because the pawl carrier 3 is fixedly connected with the central shaft 2, the power is finally transmitted to the central shaft 2 and is output through the two ends of the central shaft 2, when the riding speed reaches a certain value in the first medium speed gear, the weight end of the third pawl 521 moves away from the axle center under the centrifugal force action, so that the other end of the third pawl 521 corresponding to the weight end is meshed with the third ratchet 520, the overrun clutch 8 is in a disengaged state, the first automatic centrifugal shifting mechanism 50 and the second automatic centrifugal shifting mechanism 51 are both in a driven state, the power is input through the first gear ring 403, the first gear ring 403 transmits power to the first planet carrier 401, and the second gear ring 413 rotates because the first planet carrier 401 and the second gear ring 413 are integrally formed, the second gear ring 413 transmits power to the second planet carrier 411 through the transmission of the second planet gears 412, the third ratchet 520 on the second planet carrier 411 is meshed with the third ratchet 521 on the pawl carrier 3, so that the pawl carrier 3 rotates, the pawl carrier 3 is fixedly connected with the central shaft 2, the power is finally transmitted to the central shaft 2 and power is output through both ends of the central shaft 2, when the riding speed further rises and reaches a certain value at the second intermediate speed, the weight end of the second pawl 511 moves in a direction away from the axle center due to centrifugal force, so that the other end of the second pawl 511 corresponding to the weight end is meshed with the second ratchet 510, the overrunning clutch 8 and the third automatic centrifugal shift mechanism 52 are in a following state, the first automatic centrifugal shift mechanism 50 is in a disengaging state, power is input by the first gear ring 403, the first gear ring 403 transmits the power to the first planet carrier 401 through the transmission of the first planet gears 402, the second planet carrier 411 and the third planet carrier 421 do not transmit the power at this time, the overrunning clutch is in a following state, the second ratchet 510 arranged on the first planet carrier 401 is meshed with the second pawl 511 on the pawl carrier 3, the pawl carrier 3 rotates, the pawl carrier 3 is fixedly connected with the central shaft 2, the power is finally transmitted to the central shaft 2 and is output through the two ends of the central shaft 2, when the riding speed is lifted again to a certain value in high-speed gear, the balancing weight end of the first pawl 501 moves away from the central shaft under the centrifugal force, so that the other end of the first ratchet member 501 corresponding to the end of the weight is engaged with the first ratchet gear 500, and at this time, the overrunning clutch 8, the second automatic centrifugal shift mechanism 51 and the third automatic centrifugal shift mechanism 52 are all in the following state, power is input from the first gear ring 403, and at this time, the first ratchet gear 500 provided on the first gear ring 403 rotates synchronously, and since the first ratchet gear 500 is engaged with the first ratchet member 501 provided on the ratchet member frame 3, the ratchet member frame 3 rotates, and since the ratchet member frame 3 is fixedly connected with the center shaft 2, power is finally transmitted to the center shaft 2 and power is output through both ends of the center shaft 2.
According to the gear ring input double-wheel drive full-automatic multi-gear transmission, the pawl rack and the pawl are arranged outside, and the ratchet wheel is arranged inside, so that the structure of the transmission is greatly simplified, the manufacturing difficulty and the manufacturing cost are reduced, in addition, the pawl is arranged outside, the movable position of the pawl is not limited, the centrifugal force of the pawl is greatly improved, and the gear shifting performance of the transmission is further improved.
The above-described embodiments are merely illustrative of the principles and functions of the present invention, and some of the practical examples, not intended to limit the invention; it should be noted that modifications and improvements can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the present invention.
Claims (7)
1. A ring gear input dual-wheel drive full-automatic multi-speed transmission, comprising: a power input, a central shaft, a pawl cage, and a speed change mechanism disposed between the central shaft and the pawl cage, the speed change mechanism comprising: several sets of planetary gear sets and several sets of automatic centrifugal gearshift that set up side by side, every set of planetary gear sets includes: the automatic centrifugal gear shifting mechanism comprises a central shaft, a plurality of sets of planetary gear transmissions, a central wheel, a planet carrier and planet gears, wherein the central wheel is sleeved on the central shaft and is fixedly connected or in shock absorption connection with the frame, the central wheels of the sets of planetary gear transmissions are integrally formed or separately arranged, in every two sets of planetary gear transmissions, the gear ring of one set of planetary gear transmissions and the planet carrier of the other set of planetary gear transmissions form an assembly, the gear ring of one set of planetary gear transmissions is fixedly connected or integrally formed with a power input part, an overrunning clutch is arranged between the planet carrier of the other set of planetary gear transmissions and the pawl carrier, the pawl carrier is fixedly connected or integrally formed with the central shaft, each set of automatic centrifugal gear shifting mechanism comprises a ratchet wheel and at least one pawl, the ratchet wheel is arranged on the gear ring of the planetary gear and the assembly, the pawl is arranged on the pawl carrier, and an elastic part for controlling the initial position of the pawl is arranged on the pawl carrier.
2. A ring gear input dual-wheel drive full-automatic multi-speed transmission as defined in claim 1, wherein: the center of the pawl is mounted to the pawl cage by a pin and one end of the pawl is provided with a weight.
3. A ring gear input dual-wheel drive full-automatic multi-speed transmission as defined in claim 1, wherein: when the number of the pawls in each automatic centrifugal shifting mechanism is two or more, the pawls are connected by the link.
4. A ring gear input dual-wheel drive full-automatic multi-speed transmission as defined in claim 1, wherein: the pawl cage includes: the pawl is arranged in the hollowed-out parts.
5. A ring gear input dual-wheel drive full-automatic multi-speed transmission as defined in claim 1, wherein: the elastic piece is a torsion spring or a spring piece.
6. A ring gear input dual-wheel drive full-automatic multi-speed transmission as defined in claim 1, wherein: the pawl holder is in spline connection with the central shaft.
7. A ring gear input dual-wheel drive full-automatic multi-speed transmission as defined in claim 1, wherein: the overrunning clutch includes an overrunning pawl and an overrunning ratchet, one of which is disposed on the pawl carrier and the other of which is disposed on the carrier of the end planetary transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710995072.8A CN107588161B (en) | 2017-10-23 | 2017-10-23 | Gear ring input double-wheel drive full-automatic multi-gear transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710995072.8A CN107588161B (en) | 2017-10-23 | 2017-10-23 | Gear ring input double-wheel drive full-automatic multi-gear transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107588161A CN107588161A (en) | 2018-01-16 |
| CN107588161B true CN107588161B (en) | 2024-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710995072.8A Active CN107588161B (en) | 2017-10-23 | 2017-10-23 | Gear ring input double-wheel drive full-automatic multi-gear transmission |
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| CN (1) | CN107588161B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108974242B (en) * | 2018-09-12 | 2024-02-13 | 昆山唐泽新能源科技有限公司 | Variable speed hub centrifugal clutch assembly and automatic internal three-speed hub |
| CN112413067B (en) * | 2020-11-23 | 2022-02-11 | 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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| CN2444088Y (en) * | 2000-09-30 | 2001-08-22 | 王爱月 | Three-stages internal variable speed axle |
| CN1847083A (en) * | 2006-05-11 | 2006-10-18 | 程辉 | Automatic bicycle speed variator |
| CN101022992A (en) * | 2004-08-12 | 2007-08-22 | 摩诺托克有限公司 | Internal mechanical automatic transmission assembly |
| CN106481755A (en) * | 2016-12-21 | 2017-03-08 | 张家港川梭车业有限公司 | A kind of fixed Two-wheeled multi gear fully-automatic gearbox of centre wheel |
| CN106763569A (en) * | 2016-12-21 | 2017-05-31 | 张家港川梭车业有限公司 | A kind of double centre wheels of gear ring fix single-wheel and directly drive multi gear fully-automatic gearbox |
| CN106949202A (en) * | 2017-05-11 | 2017-07-14 | 张家港川梭车业有限公司 | A kind of Two-wheeled ratchet movable type gearshift multi-gear transmission device |
| CN207378075U (en) * | 2017-10-23 | 2018-05-18 | 张家港市九鼎机械有限公司 | A kind of gear ring inputs the full-automatic multi-shifting speed variator of Two-wheeled |
-
2017
- 2017-10-23 CN CN201710995072.8A patent/CN107588161B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2444088Y (en) * | 2000-09-30 | 2001-08-22 | 王爱月 | Three-stages internal variable speed axle |
| CN101022992A (en) * | 2004-08-12 | 2007-08-22 | 摩诺托克有限公司 | Internal mechanical automatic transmission assembly |
| CN1847083A (en) * | 2006-05-11 | 2006-10-18 | 程辉 | Automatic bicycle speed variator |
| CN106481755A (en) * | 2016-12-21 | 2017-03-08 | 张家港川梭车业有限公司 | A kind of fixed Two-wheeled multi gear fully-automatic gearbox of centre wheel |
| CN106763569A (en) * | 2016-12-21 | 2017-05-31 | 张家港川梭车业有限公司 | A kind of double centre wheels of gear ring fix single-wheel and directly drive multi gear fully-automatic gearbox |
| CN106949202A (en) * | 2017-05-11 | 2017-07-14 | 张家港川梭车业有限公司 | A kind of Two-wheeled ratchet movable type gearshift multi-gear transmission device |
| CN207378075U (en) * | 2017-10-23 | 2018-05-18 | 张家港市九鼎机械有限公司 | A kind of gear ring inputs the full-automatic multi-shifting speed variator of Two-wheeled |
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