CN111422296A - Combined pawl transmission - Google Patents

Combined pawl transmission Download PDF

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Publication number
CN111422296A
CN111422296A CN202010375772.9A CN202010375772A CN111422296A CN 111422296 A CN111422296 A CN 111422296A CN 202010375772 A CN202010375772 A CN 202010375772A CN 111422296 A CN111422296 A CN 111422296A
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CN
China
Prior art keywords
pawl
ratchet wheel
wheel
counterweight
hub
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010375772.9A
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Chinese (zh)
Inventor
黄英可
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhangjiagang Chuansuo Vehicle Industry Co Ltd
Original Assignee
Zhangjiagang Chuansuo Vehicle Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhangjiagang Chuansuo Vehicle Industry Co Ltd filed Critical Zhangjiagang Chuansuo Vehicle Industry Co Ltd
Priority to CN202010375772.9A priority Critical patent/CN111422296A/en
Publication of CN111422296A publication Critical patent/CN111422296A/en
Pending legal-status Critical Current

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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
    • B62M11/16—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears built in, or adjacent to, the ground-wheel hub
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
    • F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
    • F16D43/16—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with clutching members having interengaging parts
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D43/00—Automatic clutches
    • F16D43/02—Automatic clutches actuated entirely mechanically
    • F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
    • F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
    • F16D2043/145—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members the centrifugal masses being pivoting

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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

The invention relates to a combined pawl transmission comprising: power input spare, center pin, wheel hub, first automatic gear shifting mechanism, second automatic gear shifting mechanism, first planet speed change mechanism, second planet speed change mechanism, first freewheel clutch and second freewheel clutch, first automatic gear shifting mechanism includes: the bicycle transmission comprises a first pawl member frame, a first ratchet wheel, a second ratchet wheel, a first pawl member, a first counterweight member, a linkage pawl member and a first balance member, wherein the first counterweight member is in linkage connection with the linkage pawl member, the first pawl member is provided with a first pawl part, the linkage pawl member is provided with a second pawl part, the first pawl part and the first ratchet wheel form a first meshing pair, the second pawl part and the second ratchet wheel form a second meshing pair, and one of the first meshing pair and the second meshing pair is disengaged when the other one is meshed, so that the speed ratio between a low gear and a medium gear of a transmission is more reasonable and easier to ride.

Description

Combined pawl transmission
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of bicycles, in particular to a combined pawl transmission.
[ background of the invention ]
The bicycle is a traditional industry, has a history of more than 100 years, is a favorite transportation and fitness tool for residents in all countries, particularly developed countries, in the world again due to the problems of environmental protection and transportation, the center of gravity of the bicycle industry in the world is being changed from the traditional transportation tool instead of walking to sports, mountain land and leisure, and the bicycle is a popular sports, fitness, leisure and entertainment product in developed countries such as the United states, Europe and the Japan. In order to make the riding easier, the speed change system of the bicycle plays an important role, the speed of the bicycle is changed by changing the cooperation of a chain and gear discs with different sizes in the front and the back of the bicycle in the prior speed change system of the bicycle, the speed change system has the defect that a shifting lever needs to be manually adjusted to shift gears, and later along with the continuous development of the technology, an automatic centrifugal gear shift mechanism appears, the automatic centrifugal gear shift mechanism can automatically shift gears according to the change of the riding speed, the riding vehicle does not need to manually adjust the shifting lever to shift gears any more, but because the speed ratio between the low gear and the medium gear of the automatic centrifugal gear shift mechanism is not reasonable, the riding is laborious.
Therefore, there is a need for a combination pawl transmission that addresses the above-mentioned problems.
[ summary of the invention ]
To solve the above problems, an object of the present invention is to provide a combined pawl transmission that can achieve both automatic shifting and ease of riding.
In order to achieve the purpose, the invention adopts the technical scheme that: a combination pawl transmission comprising: power input spare, center pin, wheel hub and set up first automatic gear shifting mechanism, second automatic gear shifting mechanism, first planetary speed change mechanism, second planetary speed change mechanism, first freewheel clutch and second freewheel clutch between center pin and wheel hub, first automatic gear shifting mechanism includes: the automatic gear shifting device comprises a first pawl member frame, a first ratchet wheel, a second ratchet wheel, at least one first pawl member, at least two first balance weight members, at least one linkage pawl member and at least one first balance member, wherein the first pawl member, the at least two first balance weight members, the at least one linkage pawl member and the at least one first balance weight member are arranged on the pawl member frame, the first balance weight member and the first pawl member form a combined member or are arranged independently, the first balance weight member and the linkage pawl member are in linkage connection, a first pawl part matched with the first ratchet wheel is arranged on the first pawl member, the first ratchet wheel is arranged on the outer circumferential surface of a power input member, the second ratchet wheel is arranged on the inner circumferential surface of a hub, a second pawl part matched with the second ratchet wheel is arranged on the linkage pawl member: the first ratchet piece rack and the second ratchet piece rack are fixedly connected with a hub or integrally formed, a third pawl part meshed with the third ratchet piece is arranged on the second ratchet piece, and the first balance weight piece, the first pawl part, the second pawl part and the second balance weight piece are all controlled to be in initial positions through elastic pieces, and the first planetary speed change mechanism comprises: first sun gear, first planet carrier, first ring gear and first planet wheel, first ring gear and center pin fixed connection or integrated into one piece, second planetary transmission includes: the second central wheel is integrally formed or fixedly connected with the central shaft, the second gear ring is fixedly connected with the first planet carrier, the first overrunning clutch is arranged between the power input part and the first central wheel, the first pawl part frame is fixedly connected with the first planet carrier or the first overrunning clutch is arranged between the first pawl part frame and the first planet carrier, the power input part is fixedly connected with the first central wheel, the second overrunning clutch is arranged between the second planet carrier and the wheel hub, the first pawl part and the first ratchet wheel form a first meshing pair, the second pawl part and the second ratchet wheel form a second meshing pair, and when one of the first meshing pair and the second meshing pair is meshed, the other one is disengaged.
Preferably, a combination pawl transmission of the present invention is further configured to: the linkage pawl member is connected with the first counterweight member through a connecting rod.
Preferably, a combination pawl transmission of the present invention is further configured to: the linkage pawl member is connected with the first counterweight member through meshing teeth.
Preferably, a combination pawl transmission of the present invention is further configured to: the first ratchet wheel and the third ratchet wheel are integrally formed.
Preferably, a combination pawl transmission of the present invention is further configured to: the one end of wheel hub is equipped with first wheel hub lid, the other end of wheel hub is equipped with the second wheel hub lid, first wheel hub lid, second wheel hub lid respectively with wheel hub fixed connection, be connected through the bearing between first wheel hub lid and the center pin. The second hub cover is connected with the power input part through a bearing, and the power input part is connected with the central shaft through a bearing.
Preferably, a combination pawl transmission of the present invention is further configured to: the second hub cap and the second pawl frame are integrally formed.
Preferably, a combination pawl transmission of the present invention is further configured to: the second counterweight is mounted on the second pawl frame and can swing relatively to the second pawl frame, the second pawl is mounted on the second pawl frame and can swing relatively to the second pawl frame, or the second pawl is mounted on the second counterweight and can swing relatively to the second counterweight, and the second counterweight includes: the counterweight part of the second counterweight part moves towards the direction far away from the third ratchet wheel to be disengaged with the third ratchet wheel, when the counterweight part of the second counterweight part moves towards the direction far away from the center of a circle, the third pawl part of the second pawl part moves towards the direction far away from the third ratchet wheel to be engaged with the third ratchet wheel, when the counterweight part of the second counterweight part moves towards the direction far away from the center of a circle, the third pawl part of the second pawl part moves towards the direction far away from the center of a circle to be engaged with the third ratchet wheel, and the second pawl part and the third ratchet wheel relatively swing under the action of the elastic part in the follow-up process.
Preferably, a combination pawl transmission of the present invention is further configured to: the central shaft is fixedly connected with the frame.
Compared with the prior art, the invention has the following beneficial effects: the switching between the low gear and the medium gear of the transmission is completed through the transmission switching of the first pawl member and the linkage pawl member, so that the speed ratio between the low gear and the medium gear of the transmission is more reasonable, and the riding is easier; in addition, the bicycle frame is fixedly connected with the bicycle frame through the central shaft, so that the bicycle frame is simpler and more convenient to mount.
[ description of the drawings ]
Fig. 1 is a front view schematically showing a combined pawl transmission according to embodiment 1 of the present invention.
Fig. 2 is an exploded view of the combined pawl transmission according to embodiment 1 of the present 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 shift mechanism in embodiment 1 of the invention.
Fig. 5 is a schematic structural view of a second automatic shift mechanism in embodiment 1 of the invention.
Fig. 6 is a schematic structural view of a second automatic shifting mechanism in embodiment 2 of the invention.
Fig. 7 is a schematic structural view of a second weight member in embodiment 2 of the present invention.
Fig. 8 is a schematic structural diagram of the first counterweight member and the linkage pawl member according to embodiment 3 of the present invention.
In fig. 1 to 5: 1. a power input, 2, a center shaft, 3, a hub, 30, a first hub cap, 31, a second hub cap, 4, a first automatic shifting mechanism, 40, a first pawl carrier, 41, a first ratchet wheel, 42, a second ratchet wheel, 43, a first pawl, 430, a first pawl portion, 44, a first counterweight, 45, a linking pawl, 450, a second pawl portion, 46, a first counterweight, 47, a pin, 48, a connecting rod, 5, a second automatic shifting mechanism, 50, a second pawl carrier, 51, a third ratchet wheel, 52, a second pawl, 520, a third pawl portion, 53, a second counterweight, 54, a second counterweight, 55, a pin, 6, a first planetary gear shifting mechanism, 60, a first center wheel, 61, a first carrier, 62, a first ring gear, 63, a first planet wheel, 7, a second planetary gear shifting mechanism, 70, a second center wheel, 71, a second planet carrier, 72. second ring gear, 73, second planet wheel, 8, first overrunning clutch, 80, first overrunning pawl rack, 81, first overrunning pawl, 9, second overrunning clutch, 90, second overrunning pawl rack, 91, second overrunning pawl, 92 and second overrunning ratchet.
In fig. 6 and 7: 5. a second automatic gear shift mechanism 50, a second pawl holder 51, a third ratchet 52, a second pawl 520, a third pawl portion 53, a second weight 530, a weight portion 531, a stopper portion 54, and a second weight.
In fig. 8: 45. the linkage pawl, 44, the first counterweight, 450, 440, the meshing teeth.
[ detailed description ] embodiments
A combination pawl transmission according to the present invention is described in further detail below with reference to specific embodiments.
Example 1
Referring to fig. 1 to 5, a combination pawl transmission includes: the automatic transmission comprises a power input part 1, a central shaft 2, a hub 3, and a first automatic gear shifting mechanism 4, a second automatic gear shifting mechanism 5, a first planetary speed change mechanism 6, a second planetary speed change mechanism 7, a first overrunning clutch 8 and a second overrunning clutch 9 which are arranged between the central shaft 2 and the hub 3. The central shaft 2 is installed on the frame and fixedly connected with the frame, one end of the hub 3 is provided with a first hub cover 30, the other end of the hub 3 is provided with a second hub cover 31, the first hub cover 30 and the second hub cover 31 are respectively fixedly connected with the hub 3, the first hub cover 30 is connected with the central shaft 2 through a bearing, the second hub cover 31 is connected with the power input part 1 through a bearing, and the power input part 1 is connected with the central shaft 2 through a bearing.
The first hub cover 30 and the second hub cover 31 constitute a part of the hub 3.
The first automatic shift mechanism 4 includes: the ratchet mechanism comprises a first pawl rack 40, a first ratchet wheel 41, a second ratchet wheel 42, at least one first pawl 43, at least two first balance weights 44, at least one linkage pawl 45 and at least one first balance weight 46, wherein the first balance weights 44 and the first pawl 43 form a combined piece or are arranged independently, the first balance weights 44 and the linkage pawl 45 are connected in a linkage manner, the first pawl 43 is provided with a first pawl part 430 matched with the first ratchet wheel 41, the first ratchet wheel 41 is arranged on the outer circumferential surface of the power input part 1, the second ratchet wheel 42 is arranged on the inner circumferential surface of the hub 3, and the linkage pawl 45 is provided with a second pawl part 450 matched with the second ratchet wheel 42.
Further, in the present embodiment, the second ratchet gear 42 is provided on the inner circumferential surface of the second hub cover 31.
Further, in this embodiment, the number of the first pawls 43 and the first balance weights 44 is two, and each first pawl 43 and one first balance weight 44 constitute an assembly, and there are two assemblies, and each assembly is mounted on the first pawl frame 40 by a pin 47 and an elastic member (not shown), which can be used to control the initial position of the assembly.
Further, in the present embodiment, the first balance weight 44 and the interlocking pawl 45 are connected by a connecting rod 48 to realize interlocking.
The second automatic shift mechanism 5 includes: a second pawl frame 50, a third ratchet wheel 51, at least one second pawl 52, at least two second weights 53 and at least one second balance 54 mounted on the second pawl frame 50, said second hubcap 31 being integrally formed with the second pawl frame 50. The first ratchet wheel 41 and the third ratchet wheel 51 are integrally formed, the second counterweight member 53 and the second pawl member 52 form an assembly or are separately arranged, the third ratchet wheel 51 is arranged on the outer circumferential surface of the power input member 1, and the second pawl frame 50 is fixedly connected with the hub 3 or is integrally formed. The second pawl 52 is provided with a third pawl part 520 engaged with the third ratchet wheel 51, the first pawl part 430 and the first ratchet wheel 41 form a first engagement pair, the second pawl part 450 and the second ratchet wheel 42 form a second engagement pair, and when one of the first and second engagement pairs is engaged, the other one is disengaged.
Further, in the present embodiment, the number of the second pawls 52 and the second balance weights 53 is two, each second pawl 52 and one second balance weight 53 form an assembly, and there are two assemblies, and each assembly is controlled in its initial position by the pin 55 and one elastic member (not shown).
Further, in the present embodiment, the second pawl frame 50 is fixedly connected to or integrally formed with the second hubcap 31.
The first planetary transmission mechanism 6 includes: first sun gear 60, first planet carrier 61, first ring gear 62 and first planet wheel 63, first ring gear 62 and center pin 2 fixed connection or integrated into one piece, second planetary gear 7 includes: in the present embodiment, the first overrunning clutch 8 is disposed between the power input member 1 and the first central wheel 60, the first overrunning clutch 8 includes a first overrunning pawl carrier 80, a first overrunning pawl 81, and a first overrunning ratchet (not shown), the first overrunning pawl carrier 80 is integrally formed or fixedly connected with the first central wheel 60, the first overrunning pawl 81 is mounted on the first overrunning pawl carrier 80, and the first overrunning ratchet is disposed on an inner circumferential surface of the power input member 1. The first pawl frame 40 is fixedly connected with the first planet carrier 61, the second overrunning clutch 9 is arranged between the second planet carrier 71 and the hub 3, the second overrunning clutch 9 comprises a second overrunning pawl frame 90, a second overrunning pawl 91 and a second overrunning ratchet 92, the second overrunning pawl frame 90 and the second planet carrier 71 are integrally formed or fixedly connected, the second overrunning pawl 91 is arranged on the second overrunning pawl frame 90, and the second overrunning ratchet 92 is fixedly connected with the hub 3. Of course, in other embodiments, the first overrunning clutch 8 may be disposed between the first pawl carrier 40 and the first carrier 61, and the power input member 1 is fixedly connected to the first sun gear 60, which also may implement the present invention.
The working principle of the combined pawl transmission is as follows: the power is inputted from the power input member 1 and outputted from the hub 3, at low speed, the first pawl 43 of the first automatic gear shifting mechanism 4 is in a disengaged state with the first ratchet wheel 41 under the action of the elastic member, the linkage pawl 45 is in an engaged state with the second ratchet wheel 42, the power is inputted from the power input member 1, the first center wheel 60 rotates with the first ratchet wheel 60 by the connection between the power input member 1 and the first center wheel 60 through the first overrunning clutch 8, the first planet carrier 61 rotates, the first planet carrier 40, the first pawl 43 and the linkage pawl 45 rotate synchronously, the linkage pawl 45 is engaged with the second ratchet wheel 42, the second ratchet wheel 42 is arranged on the inner circumferential surface of the second hub cover 31, and the second hub cover 31 is fixedly connected with the hub 3, thereby the hub 3 is driven to output power, in this case, the reduction gear.
At the middle gear, as the riding speed is increased, the first balance weight 44 moves away from the center of the circle under the action of centrifugal force, so that the first pawl member 43 is meshed with the first ratchet wheel 41, the first balance weight 44 is linked with the linkage pawl member 45, so that when the first balance weight 44 moves away from the center of the circle, the linkage pawl member 45 is driven to be disengaged from the second ratchet wheel 42, power is input by the power input member 1, the first ratchet wheel 41 rotates because the first ratchet wheel 41 is arranged on the outer circumferential surface of the power input member 1, the first ratchet wheel 41 rotates, the first pawl member 43 and the first pawl member carrier 40 rotate because the first pawl member 43 is meshed with the first ratchet wheel 41, the first pawl member carrier 40 is fixedly connected with the first planet carrier 61, so that the first planet carrier 61 rotates, the second gear ring 72 rotates because the second gear 72 is fixedly connected with the first planet carrier 61, the second ring gear 72 drives the second planet carrier 71 to rotate through the transmission of the second planet gear 73, and the second planet carrier 71 is connected with the hub 3 through the second overrunning clutch 9, so that the hub 3 rotates, which is a speed reduction output, and the first central gear 60 follows up at the moment.
In a high gear, as the riding speed is faster and faster, the second weight 53 of the second automatic gear shifting mechanism 5 moves away from the center of a circle under the action of centrifugal force, so that the second pawl 52 moves towards the center of a circle and is meshed with the third ratchet wheel 51, power is input from the power input part 1, the third ratchet wheel 51 rotates because the third ratchet wheel 51 is arranged on the power input part 1, and the second pawl 52 rotates because the third ratchet wheel 51 is meshed with the second pawl 52, so that the second pawl 52 rotates to drive the second pawl frame 50 to rotate, the second pawl frame 50 is fixedly connected with the second hub cover 31, and the second hub cover 31 is fixedly connected with the hub 3, so that the hub 3 rotates, and the process is the same speed output, and at the moment, the first planetary speed changing mechanism 6 and the second planetary speed changing mechanism 7 are in a follow-up state.
Example 2
Referring to fig. 6 and 7, the remaining structure of the present embodiment is the same as that of embodiment 1, except that the first automatic shift mechanism and the second automatic shift mechanism have different structures, in this embodiment, the second pawl 52 and the second weight 53 in the second automatic shift mechanism 5 are separately provided, the second weight 53 is mounted on the second pawl frame 50 and is relatively swingable with respect to the second pawl frame 50, the second pawl 52 is mounted on the second pawl frame 50 and is relatively swingable with respect to the second pawl frame 50, or the second pawl 52 is mounted on the second weight 53 and is relatively swingable with respect to the second weight 53, and the second weight 53 includes: the weight portion 530 and the limiting portion 531, the limiting portion 531 limits the second pawl 52 such that the third pawl portion 520 of the second pawl 52 is far away from the third ratchet wheel 51 and the third pawl portion 520 of the second pawl 52 is in a disengaged state with the third ratchet wheel 51 when the weight portion 530 is at the initial position of the weight portion 530, the second balance member 54 is connected between two adjacent second weight members 53, when the weight portion 530 of the second weight member 53 moves toward the center of a circle, the third pawl portion 520 of the second pawl 52 moves toward the direction far away from the third ratchet wheel 51 to disengage with the third ratchet wheel 51, when the weight portion 530 of the second weight member 53 moves toward the center of a circle, the third pawl portion 520 of the second pawl 52 moves toward the third ratchet wheel 51 to engage with the third ratchet wheel 51, and the second pawl 52 and the third ratchet wheel 51 relatively swing under the action of the elastic member during the following process, so that the force of the second pawl member 52 acting on the third ratchet wheel 51 by the second pawl member 52 during follow-up with the third ratchet wheel 51 is not related to the centrifugal force of the second weight member 53 and does not increase with an increase in centrifugal force, and therefore the sound of the third pawl member 520 of the second pawl member 52 hitting the third ratchet wheel 51 during follow-up and the frictional force between the third pawl member 520 and the third ratchet wheel 51 are greatly reduced, and the low noise and low resistance of the second automatic shift mechanism 5 is achieved.
Example 3
Referring to fig. 8, the rest of the structure of the present embodiment is the same as that of embodiment 1, except for the linkage between the interlocking pawl 45 and the first balance weight 44. in embodiment 1, the interlocking pawl 45 and the first balance weight 44 are linked by the connecting rod 49, while in the present embodiment, the interlocking pawl 45 and the first balance weight 44 are linked by the engaging teeth 450, 440, and the present invention can also be realized.
Compared with the prior art, the invention has the following beneficial effects: the switching between the low gear and the medium gear of the transmission is completed through the transmission switching of the first pawl member and the linkage pawl member, so that the speed ratio between the low gear and the medium gear of the transmission is more reasonable, and the 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 (8)

1. A combination pawl transmission, characterized by: the method comprises the following steps: power input spare, center pin, wheel hub and set up first automatic gear shifting mechanism, second automatic gear shifting mechanism, first planetary speed change mechanism, second planetary speed change mechanism, first freewheel clutch and second freewheel clutch between center pin and wheel hub, first automatic gear shifting mechanism includes: the automatic gear shifting device comprises a first pawl member frame, a first ratchet wheel, a second ratchet wheel, at least one first pawl member, at least two first balance weight members, at least one linkage pawl member and at least one first balance member, wherein the first pawl member, the at least two first balance weight members, the at least one linkage pawl member and the at least one first balance weight member are arranged on the pawl member frame, the first balance weight member and the first pawl member form a combined member or are arranged independently, the first balance weight member and the linkage pawl member are in linkage connection, a first pawl part matched with the first ratchet wheel is arranged on the first pawl member, the first ratchet wheel is arranged on the outer circumferential surface of a power input member, the second ratchet wheel is arranged on the inner circumferential surface of a hub, a second pawl part matched with the second ratchet wheel is arranged on the linkage pawl member: the first ratchet piece rack and the second ratchet piece rack are fixedly connected with a hub or integrally formed, a third pawl part meshed with the third ratchet piece is arranged on the second ratchet piece, and the first balance weight piece, the first pawl part, the second pawl part and the second balance weight piece are all controlled to be in initial positions through elastic pieces, and the first planetary speed change mechanism comprises: first sun gear, first planet carrier, first ring gear and first planet wheel, first ring gear and center pin fixed connection or integrated into one piece, second planetary transmission includes: the second central wheel is integrally formed or fixedly connected with the central shaft, the second gear ring is fixedly connected with the first planet carrier, the first overrunning clutch is arranged between the power input part and the first central wheel, the first pawl part frame is fixedly connected with the first planet carrier or the first overrunning clutch is arranged between the first pawl part frame and the first planet carrier, the power input part is fixedly connected with the first central wheel, the second overrunning clutch is arranged between the second planet carrier and the wheel hub, the first pawl part and the first ratchet wheel form a first meshing pair, the second pawl part and the second ratchet wheel form a second meshing pair, and when one of the first meshing pair and the second meshing pair is meshed, the other one is disengaged.
2. A combination pawl transmission as defined in claim 1, wherein: the linkage pawl member is connected with the first counterweight member through a connecting rod.
3. A combination pawl transmission as defined in claim 1, wherein: the linkage pawl member is connected with the first counterweight member through meshing teeth.
4. A combination pawl transmission as defined in claim 1, wherein: the first ratchet wheel and the third ratchet wheel are integrally formed.
5. A combination pawl transmission as defined in claim 1, wherein: the one end of wheel hub is equipped with first wheel hub lid, the other end of wheel hub is equipped with the second wheel hub lid, first wheel hub lid, second wheel hub lid respectively with wheel hub fixed connection, be connected through the bearing between first wheel hub lid and the center pin. The second hub cover is connected with the power input part through a bearing, and the power input part is connected with the central shaft through a bearing.
6. A combination pawl transmission as defined in claim 1, wherein: the second hub cap and the second pawl frame are integrally formed.
7. A combination pawl transmission as defined in claim 1, wherein: the second counterweight is mounted on the second pawl frame and can swing relatively to the second pawl frame, the second pawl is mounted on the second pawl frame and can swing relatively to the second pawl frame, or the second pawl is mounted on the second counterweight and can swing relatively to the second counterweight, and the second counterweight includes: the counterweight part of the second counterweight part moves towards the direction far away from the third ratchet wheel to be disengaged with the third ratchet wheel, when the counterweight part of the second counterweight part moves towards the direction far away from the center of a circle, the third pawl part of the second pawl part moves towards the direction far away from the third ratchet wheel to be engaged with the third ratchet wheel, when the counterweight part of the second counterweight part moves towards the direction far away from the center of a circle, the third pawl part of the second pawl part moves towards the direction far away from the center of a circle to be engaged with the third ratchet wheel, and the second pawl part and the third ratchet wheel relatively swing under the action of the elastic part in the follow-up process.
8. A combination pawl transmission as defined in claim 1, wherein: the central shaft is fixedly connected with the frame.
CN202010375772.9A 2020-05-07 2020-05-07 Combined pawl transmission Pending CN111422296A (en)

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Application Number Priority Date Filing Date Title
CN202010375772.9A CN111422296A (en) 2020-05-07 2020-05-07 Combined pawl transmission

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Application Number Priority Date Filing Date Title
CN202010375772.9A CN111422296A (en) 2020-05-07 2020-05-07 Combined pawl transmission

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CN111422296A true CN111422296A (en) 2020-07-17

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CN202010375772.9A Pending CN111422296A (en) 2020-05-07 2020-05-07 Combined pawl transmission

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114542413A (en) * 2022-02-23 2022-05-27 安徽工程大学 Portable chargeable formula aerating device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114542413A (en) * 2022-02-23 2022-05-27 安徽工程大学 Portable chargeable formula aerating device

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