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CN106985963B - Single-wheel drive three-gear speed change device - Google Patents

  • ️Tue Jun 07 2022

CN106985963B - Single-wheel drive three-gear speed change device - Google Patents

Single-wheel drive three-gear speed change device Download PDF

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Publication number
CN106985963B
CN106985963B CN201710331594.8A CN201710331594A CN106985963B CN 106985963 B CN106985963 B CN 106985963B CN 201710331594 A CN201710331594 A CN 201710331594A CN 106985963 B CN106985963 B CN 106985963B Authority
CN
China
Prior art keywords
wheel
pawl
planet carrier
gear
drive
Prior art date
2017-05-11
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.)
Active
Application number
CN201710331594.8A
Other languages
Chinese (zh)
Other versions
CN106985963A (en
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.)
2017-05-11
Filing date
2017-05-11
Publication date
2022-06-07
2017-05-11 Application filed by Zhangjiagang Chuansuo Vehicle Industry Co Ltd filed Critical Zhangjiagang Chuansuo Vehicle Industry Co Ltd
2017-05-11 Priority to CN201710331594.8A priority Critical patent/CN106985963B/en
2017-07-28 Publication of CN106985963A publication Critical patent/CN106985963A/en
2022-06-07 Application granted granted Critical
2022-06-07 Publication of CN106985963B publication Critical patent/CN106985963B/en
Status Active legal-status Critical Current
2037-05-11 Anticipated expiration legal-status Critical

Links

  • 230000005540 biological transmission Effects 0.000 claims abstract description 54
  • 238000012423 maintenance Methods 0.000 description 2
  • 238000004519 manufacturing process Methods 0.000 description 2
  • 238000012986 modification Methods 0.000 description 2
  • 230000004048 modification Effects 0.000 description 2
  • 239000004065 semiconductor Substances 0.000 description 2
  • 230000009286 beneficial effect Effects 0.000 description 1
  • 239000000428 dust Substances 0.000 description 1
  • 230000000694 effects Effects 0.000 description 1
  • JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
  • -1 rainwater Substances 0.000 description 1
  • 239000003566 sealing material Substances 0.000 description 1

Images

Classifications

    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

The invention discloses a single-wheel drive three-gear speed change device, which comprises: center pin, wheel hub, gearshift and two sets of planetary transmission who sets up side by side, planetary transmission includes: a first planetary transmission and a second planetary transmission, the first planetary transmission comprising: first sun gear, first planet carrier, first planet wheel and first ring gear, second planetary transmission includes: second centre wheel, second planet carrier, second planet wheel and second ring gear, first centre wheel, second centre wheel all overlap locate on the center pin and fixed mutually with the frame, first ring gear and second planet carrier integrated into one piece or fixed connection, center pin and one of them fixed connection in first planet carrier, first ring gear, second planet carrier, the fourth of second ring gear, gearshift includes: ratchet, pawl frame and pawl, form sliding connection between pawl frame and the wheel hub to shift gears stability has been improved greatly.

Description

Single-wheel drive three-gear speed change device

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of bicycles, in particular to a single-wheel drive three-gear speed change device.

[ background ] A method for producing a semiconductor device

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, the inner speed changer is sealed inside a hub and protected by multiple layers of special sealing materials, rainwater, dust, oil dirt and the like cannot enter, the regular maintenance is not needed, and the maintenance-free advantage is realized.

[ summary of the invention ]

In order to solve the problems, the invention aims to provide a single-wheel drive three-gear speed change device which is compact in structure and good in gear shifting stability.

In order to achieve the purpose, the invention adopts the technical scheme that: a single-wheel drive three-speed transmission comprising: center pin, wheel hub and set up gearshift between center pin and wheel hub and two sets of planetary transmission who sets up side by side, planetary transmission includes: a first planetary transmission and a second planetary transmission, the first planetary transmission comprising: first sun gear, first planet carrier, first planet wheel and first ring gear, second planetary transmission includes: second centre wheel, second planet carrier, second planet wheel and second ring gear, first centre wheel, second centre wheel all overlap locate on the center pin and fixed mutually with the frame, first ring gear and second planet carrier integrated into one piece or fixed connection, the center pin is power input spare, wheel hub is power output spare, one of them fixed connection in center pin and first planet carrier, first ring gear, second planet carrier, the second ring gear, gearshift includes: the ratchet wheel comprises a first ratchet wheel arranged on the first planet carrier, a second ratchet wheel arranged on the first gear ring or the second planet carrier and a third ratchet wheel arranged on the second gear ring.

Preferably, a single-wheel drive three-speed transmission in the present invention is further configured to: the one end of center pin is equipped with first end cover and lock nut, be connected through bearing or ball between first end cover and the wheel hub, the other end of center pin is equipped with second end cover and boss, be connected through bearing or ball between second end cover and the wheel hub.

Preferably, a single-wheel drive three-speed transmission in the present invention is further configured to: the first center wheel and the second center wheel are integrally formed to form a center wheel assembly, the center wheel assembly is fixedly connected with the first end cover, and the first end cover is fixedly connected with the frame.

Preferably, a single-wheel drive three-speed transmission in the present invention is further configured to: the central wheel assembly is provided with a guide sleeve, and the guide sleeve can axially move relative to the central wheel assembly.

Preferably, a single-wheel drive three-speed transmission in the present invention is further configured to: the guide sleeve is provided with a groove, and the pawl rack is provided with a convex part accommodated in the groove.

Preferably, a single-wheel drive three-speed transmission in the present invention is further configured to: and a return spring is arranged between the guide sleeve and the first end cover.

Preferably, a single-wheel drive three-speed transmission in the present invention is further configured to: the pawl frame is arranged in a circular ring shape, a plurality of openings are formed in the pawl frame, and the pawl is accommodated in the openings and is installed on the pawl frame through pins.

Preferably, a single-wheel drive three-speed transmission in the present invention is further configured to: the elastic piece is a spring, a torsion spring or a spring sheet.

Preferably, a single-wheel drive three-speed transmission in the present invention is further configured to: the pawl component is provided with a pawl part matched with the ratchet wheel, and the pawl part is provided with a meshing guide surface.

Compared with the prior art, the invention has the following beneficial effects: the single-wheel drive three-gear speed change device adopts the pawl type gear shift mechanism, so that the structure is compact, the gear shift operation is convenient, the gear shift stability is greatly improved, in addition, the pawl type gear shift mechanism can also be used as an overrunning clutch, and the overrunning clutch does not need to be used in the planetary transmission, so the structure is greatly simplified.

[ description of the drawings ]

Fig. 1 is a front view schematically showing the structure of a single-wheel drive three-speed transmission according to the present invention.

Fig. 2 is a schematic sectional view of the single-wheel drive three-speed transmission of the present invention.

Fig. 3 is an exploded schematic view of the single wheel drive three speed transmission of the present invention.

In the figure: 1. center shaft, 10, first end cap, 11, draw-in nut, 12, second end cap, 13, boss, 2, hub, 3, shift mechanism, 30, pawl holder, 300, spring, 301, protrusion, 31, pawl, 310, pawl portion, 32, first ratchet, 33, second ratchet, 34, third ratchet, 4, first planetary gear, 40, first center wheel, 41, first planet carrier, 42, first planet wheel, 43, first ring gear, 5, second planetary gear, 50, second center wheel, 51, second planet carrier, 52, second planet wheel, 53, second ring gear, 6, guide sleeve, 60, groove.

[ detailed description ] embodiments

A single wheel drive three speed transmission according to the present invention is described in further detail below with reference to specific embodiments.

Referring to fig. 1 to 3, a single wheel drive three speed transmission includes:

center pin

1,

wheel hub

2 and set up in

shift mechanism

3 and two sets of planetary transmission (first planetary transmission 4 and second planetary transmission 5) that set up side by side between

center pin

1 and

wheel hub

2, the one end of

center pin

1 is equipped with

first end cover

10 and

lock nut

11, be connected through bearing or ball between

first end cover

10 and the

wheel hub

2, the other end of

center pin

1 is equipped with

second end cover

12 and

boss

13, be connected through bearing or ball between

second end cover

12 and the

wheel hub

2.

The first planetary transmission 4 includes: a

first sun gear

40, a

first carrier

41, a first

planetary gear

42, and a

first ring gear

43, and the second

planetary transmission

5 includes: a second

central gear

50, a

second planet carrier

51, a

second planet gear

52 and a

second ring gear

53, wherein the

first ring gear

43 and the

second planet carrier

51 are integrally formed. In this embodiment, the

first center wheel

40 and the

second center wheel

50 are integrally formed to form a center wheel assembly, the center wheel assembly is sleeved on the

center shaft

1 and is fixedly connected with the

first end cap

10, the

first end cap

10 is fixed with the frame, but in other embodiments, the center wheel assembly may be directly and fixedly connected with the frame. In the present embodiment, the

center shaft

1 is fixedly connected to the

first carrier

41, but in other embodiments, the

center shaft

1 may be fixedly connected to the

first ring gear

43, the

second carrier

51, or the

second ring gear

53.

The

gear shifting mechanism

3 includes a

pawl frame

30, three pawls 31 mounted on the

pawl frame

30, a

first ratchet

32 disposed on the outer circumferential surface of the

first carrier

41, a

second ratchet

33 disposed on the outer circumferential surface of the

first gear ring

43 or the

second carrier

51, and a third ratchet 34 disposed on the outer circumferential surface of the

second gear ring

53, the

pawl frame

30 is disposed in a circular ring shape, three openings are formed in the

pawl frame

30, and the pawls 31 are accommodated in the openings and mounted on the

pawl frame

30 through pins. The pawl member 31 is provided with a

pawl portion

310, and the

pawl portion

310 is provided with an engagement guide surface (not shown) which guides when the pawl portion engages with the ratchet wheel, so that shifting is more stable. The

pawl holder

30 is provided with an elastic member for controlling the initial position of the pawl 31. in the present embodiment, the elastic member is a

spring

300, but in other embodiments, the elastic member may be another elastic member such as a torsion spring or an elastic piece. The

pawl frame

30 can slide back and forth relative to the

hub

2, in this embodiment, an internal spline is arranged in the

hub

2, an external spline matched with the internal spline in the

hub

2 is arranged on the

pawl frame

30, of course, other sliding connection modes can be adopted in other embodiments, the invention can also be realized, in order to make the

pawl frame

30 more stable during sliding, a

guide sleeve

6 is arranged on the central wheel assembly, a return spring (not shown) is arranged between the

guide sleeve

6 and the

first end cover

10, internal teeth are arranged in the

guide sleeve

6, external teeth matched with the internal teeth are arranged on the central wheel assembly, so that the

guide sleeve

6 can move axially relative to the central wheel assembly, a

groove

60 is arranged on the outer circumferential surface of the

guide sleeve

6, the

pawl frame

30 is provided with a

convex part

301 accommodated in the

groove

60, so that the

pawl holder

30 can be forced by the force of the

guide sleeve

6 via the

central shaft

1 during axial movement.

The working principle of the single-wheel drive three-gear speed change device is as follows: in the invention, the

central shaft

1 is a power input part, the

hub

2 is a power output part, in low gear, the pawl member 31 is meshed with the

first ratchet wheel

32 under the control of a spring, power is input from the

central shaft

1, the

central shaft

1 is fixedly connected with the

first planet carrier

41, so the

first planet carrier

41 rotates synchronously, the

first ratchet wheel

32 is arranged on the

first planet carrier

41, the

first ratchet wheel

32 is meshed with the pawl member 31, the pawl member 31 is arranged on the

pawl member frame

30, so the

pawl member frame

30 rotates synchronously, and the power is finally transmitted to the

hub

2 and is output by the

hub

2 due to the spline connection between the

pawl member frame

30 and the

hub

2. At a middle gear, the

pawl carrier

30 is manually moved to cause the pawls 31 on the

pawl carrier

30 to be disengaged from the

first ratchet wheel

32 and engaged with the

second ratchet wheel

33, power is input from the

central shaft

1, the

first planet carrier

41 rotates synchronously due to the fixed connection of the

central shaft

1 and the

first planet carrier

41, the

first planet carrier

41 transmits power to the

first gear ring

43 through the transmission of the

first planet wheels

42, the

second ratchet wheel

33 is arranged on the

first gear ring

43, the

second ratchet wheel

33 is engaged with the pawls 31, the pawls 31 are arranged on the

pawl carrier

30, the

pawl carrier

30 rotates synchronously, and power is finally transmitted to the

hub

2 and is output by the

hub

2 due to the spline connection between the

pawl carrier

30 and the

hub

2. In high gear, the

pawl carrier

30 is manually moved to cause the pawl 31 on the

pawl carrier

30 to disengage from the

second ratchet wheel

33 and engage with the third ratchet wheel 34, power is input from the

central shaft

1, the

first carrier

41 rotates synchronously as the

central shaft

1 is fixedly connected with the

first carrier

41, the

first carrier

41 transmits power to the

first ring gear

43 by the transmission of the

first planet gears

42, the

second carrier

51 rotates synchronously as the

first ring gear

43 and the

second carrier

51 are integrally formed, the

second carrier

51 transmits power to the

second ring gear

53 by the transmission of the

second planet gears

52, the third ratchet wheel 34 is arranged on the

second ring gear

53, the third ratchet wheel 34 is engaged with the pawl 31, the pawl 31 is arranged on the

pawl carrier

30, the

pawl carrier

30 rotates synchronously as the

pawl carrier

30 and the

hub

2 are connected by splines, the power is finally transmitted to the

hub

2 and is output from the

hub

2.

In conclusion, the single-wheel drive three-gear speed change device is compact in structure, convenient to shift and control and greatly improved in shifting stability, and the pawl type gear shift mechanism can be used as an overrunning clutch without using the overrunning clutch in the planetary transmission, so that the structure is greatly simplified.

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 various changes and modifications can be made by those skilled in the art without departing from the inventive concept, and these changes and modifications fall within the scope of the invention.

Claims (9)

1. A single-wheel drive three-speed transmission, comprising: center pin, wheel hub and set up gearshift between center pin and wheel hub and two sets of planetary transmission who sets up side by side, planetary transmission includes: a first planetary transmission and a second planetary transmission, the first planetary transmission comprising: first sun gear, first planet carrier, first planet wheel and first ring gear, second planetary transmission includes: second centre wheel, second planet carrier, second planet wheel and second ring gear, first centre wheel, second centre wheel all overlap locate on the center pin and fixed mutually with the frame, first ring gear and second planet carrier integrated into one piece or fixed connection, the center pin is power input spare, wheel hub is power output spare, one of them fixed connection in center pin and first planet carrier, first ring gear, second planet carrier, the second ring gear, gearshift includes: the ratchet wheel comprises a first ratchet wheel arranged on the first planet carrier, a second ratchet wheel arranged on the first gear ring or the second planet carrier and a third ratchet wheel arranged on the second gear ring.

2. A single-wheel-drive three-speed transmission as claimed in claim 1, wherein: the one end of center pin is equipped with first end cover and lock nut, be connected through bearing or ball between first end cover and the wheel hub, the other end of center pin is equipped with second end cover and boss, be connected through bearing or ball between second end cover and the wheel hub.

3. A single wheel drive three speed transmission as claimed in claim 2 wherein: the first center wheel and the second center wheel are integrally formed to form a center wheel assembly, the center wheel assembly is fixedly connected with the first end cover, and the first end cover is fixedly connected with the frame.

4. A single wheel drive three speed transmission as claimed in claim 3 wherein: the central wheel assembly is provided with a guide sleeve, and the guide sleeve can axially move relative to the central wheel assembly.

5. A single wheel drive three speed transmission as claimed in claim 4 wherein: the guide sleeve is provided with a groove, and the pawl rack is provided with a convex part accommodated in the groove.

6. A single wheel drive three speed transmission as claimed in claim 4 wherein: and a return spring is arranged between the guide sleeve and the first end cover.

7. A single-wheel-drive three-speed transmission as claimed in claim 1, wherein: the pawl frame is arranged in a circular ring shape, a plurality of openings are formed in the pawl frame, and the pawl is accommodated in the openings and is installed on the pawl frame through pins.

8. A single-wheel-drive three-speed transmission as claimed in claim 1, wherein: the elastic piece is a spring, a torsion spring or a spring sheet.

9. A single-wheel-drive three-speed transmission as claimed in claim 1, wherein: the pawl component is provided with a pawl part matched with the ratchet wheel, and the pawl part is provided with a meshing guide surface.

CN201710331594.8A 2017-05-11 2017-05-11 Single-wheel drive three-gear speed change device Active CN106985963B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710331594.8A CN106985963B (en) 2017-05-11 2017-05-11 Single-wheel drive three-gear speed change device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710331594.8A CN106985963B (en) 2017-05-11 2017-05-11 Single-wheel drive three-gear speed change device

Publications (2)

Publication Number Publication Date
CN106985963A CN106985963A (en) 2017-07-28
CN106985963B true CN106985963B (en) 2022-06-07

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ID=59418334

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107339379B (en) * 2017-08-08 2023-06-16 张家港川梭车业有限公司 Movable three-gear speed change device of planetary transmission
CN107953966A (en) * 2017-12-21 2018-04-24 张家港川梭车业有限公司 A kind of centre wheel fixes centre shaft variable speed device
CN108032957A (en) * 2018-01-12 2018-05-15 张家港川梭车业有限公司 A kind of axis three keeps off speed change gear
CN108361331A (en) * 2018-04-23 2018-08-03 张家港川梭车业有限公司 A kind of single wheel drive straight line tramples three shift transmissions

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US4369674A (en) * 1979-05-18 1983-01-25 Honda Giken Kogyo Kabushiki Kaisha Power transmission device
CN85101503A (en) * 1985-04-01 1987-10-07 王启振 The direct drive unit of wheel
CN1057996A (en) * 1990-07-10 1992-01-22 常殿林 Bidirectional three-step gear shift flywheel
CN1668864A (en) * 2002-08-09 2005-09-14 腓特烈斯港齿轮工厂股份公司 Automatic gearbox
CN101397048A (en) * 2007-09-29 2009-04-01 程辉 Fully-automatic speed-changer of bicycle
EP2088023A1 (en) * 2008-02-06 2009-08-12 Kanzaki Kokyukoki Mfg. Co., Ltd. Transaxle and working vehicle equipped with transaxle

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TWI285613B (en) * 2006-02-22 2007-08-21 Univ Nat Sun Yat Sen Nine-speed drive hub for bicycles
CN102658761B (en) * 2012-05-27 2014-02-19 程大鹏 Hub integrating coaxial backpedaling braking, internal triple speed change and acceleration
CN106005234B (en) * 2016-07-07 2018-06-01 张家港川梭车业有限公司 A kind of gearshift
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CN106523608B (en) * 2016-12-31 2018-11-02 张家港川梭车业有限公司 A kind of third gear Two-wheeled fully-automatic gearbox
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB912633A (en) * 1958-06-06 1962-12-12 Fichtel & Sachs Ag Improvements in and relating to change speed cycle hubs
US4369674A (en) * 1979-05-18 1983-01-25 Honda Giken Kogyo Kabushiki Kaisha Power transmission device
CN85101503A (en) * 1985-04-01 1987-10-07 王启振 The direct drive unit of wheel
CN1057996A (en) * 1990-07-10 1992-01-22 常殿林 Bidirectional three-step gear shift flywheel
CN1668864A (en) * 2002-08-09 2005-09-14 腓特烈斯港齿轮工厂股份公司 Automatic gearbox
CN101397048A (en) * 2007-09-29 2009-04-01 程辉 Fully-automatic speed-changer of bicycle
EP2088023A1 (en) * 2008-02-06 2009-08-12 Kanzaki Kokyukoki Mfg. Co., Ltd. Transaxle and working vehicle equipped with transaxle

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