CN104859784B - Drive assembly for bicycle - Google Patents
Drive assembly for bicycle Download PDFInfo
- Publication number
- CN104859784B CN104859784B CN201510302372.4A CN201510302372A CN104859784B CN 104859784 B CN104859784 B CN 104859784B CN 201510302372 A CN201510302372 A CN 201510302372A CN 104859784 B CN104859784 B CN 104859784B
- Authority
- CN
- China
- Prior art keywords
- gear
- transmission axle
- protecting cover
- driven gear
- bicycle
- 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.)
- Expired - Fee Related
Links
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
- B62M17/00—Transmissions characterised by use of rotary shaft, e.g. cardan shaft
-
- 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
- B62M11/02—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of unchangeable ratio
Abstract
The present invention discloses a kind of drive assembly for being used for bicycle and electric bicycle, and one end of transmission axle is fastenedly connected with preceding driven gear by spline, the first clamping screw and the first packing ring；The other end of transmission axle is fastenedly connected with rear drive gear by spline, spring, second packing ring and the second clamping screw；Transmit the pillar both ends that outer shaft sleeve is set and be respectively equipped with preceding protecting cover and rear protecting cover, preceding protecting cover passes through casing before connecting bolt connection one, one axis is installed by three bearings in preceding casing, preceding driving gear is installed with axis, the preceding driven gear of transmission axle is arranged in preceding casing by clutch shaft bearing, and the preceding driven gear of transmission axle is meshed with preceding driving gear；Protecting cover connects a rear box by connecting bolt afterwards, and the rear drive gear of transmission axle is arranged in rear box by second bearing.Passing power of the present invention is stable, reduces the proportion of goods damageds of each parts, extends service life, reduces cost.
Description
Technical field
The present invention relates to the transmission system of bicycle, and in particular to a kind of drive assembly for bicycle.
Background technology
The kind of drive of existing electric bicycle uses sprocket wheel chain drive, although this drive mechanism is provided with chain gear
Plate, but open-drive configuration is still fallen within, the trouser legs of bicyclist or shirt rim are easy to be wound or broken by the teeth by chain or sprocket wheel, very
Property or personal injury are caused to causing bicyclist to fall down.Simultaneously as after speed improves, chain is using a period of time
Afterwards easy telomere or come off, it is necessary to again safeguard or install, bring many worries to bicyclist.In the market passed in recent years
Pass axle and replace the transmission system of chain drive, but be connected by screw bolts between existing transmission axle and preceding driven tooth, rear driving tooth,
Then it is connected with each other by bearing and preceding protecting cover, rear protecting cover, transmission axle lacks relative between preceding protecting cover, rear protecting cover during due to assembling
Few axial gap, makes each parts and preceding protecting cover, the accuracy of manufacture of rear protecting cover higher, and financial cost is high.Also have at present
Producer, it is controlled by assembly technology and bolt connection effective length, though can reach installation effect, efficiency is low, no
It is adapted to batch jobs, in the case of the jolting of vehicle long-play and different road conditions, position easily occurs for preceding protecting cover, rear protecting cover
Shifting, loosening perhaps come off, or even damage, due to being connected by screw bolts between transmission axle and preceding driven tooth, rear driving tooth, lack axle
To gap, bearing clearance is occupied, and passing power is unstable, and the lighter rides difficulty, and severe one causes bearing or bolts at two ends to damage,
Service life and personal safety are influenceed, unnecessary trouble is brought to consumer.
The content of the invention
The invention aims to overcome the deficiencies in the prior art, there is provided a kind of drive assembly of bicycle, structure letter
Single, passing power is stable, reduces the proportion of goods damageds of each parts, extends the service life for transmitting assembly, reduces cost.
The purpose of the present invention can be achieved through the following technical solutions.
A kind of drive assembly for bicycle, including transmission axle, it is characterised in that：The both ends of the transmission axle are set respectively
There are preceding driven gear and rear drive gear, ladder hole, the path section and biography of preceding driven gear are provided with the preceding driven gear
Axle spline fitted is passed, the big footpath section of preceding driven gear is provided with the first clamping screw and the first packing ring, preceding driven gear and transmission axle
Fastened by the first clamping screw and the first packing ring；Ladder hole, the aperture of rear drive gear are provided with the rear drive gear
Footpath section and transmission axle spline fitted, the large aperture section of rear drive gear is interior to be provided with spring, second packing ring and the second locking screw successively
Bolt, rear drive gear are fastened with transmission axle by spring, second packing ring and the second clamping screw；The transmission outer shaft sleeve is provided with shield
Pipe, the both ends of the pillar are respectively equipped with preceding protecting cover and rear protecting cover, and the preceding protecting cover passes through casing before connecting bolt connection one, institute
One axis is installed by three bearings in casing before stating, is installed with preceding driving gear on the axis, the transmission axle it is preceding from
Moving gear is arranged in preceding casing by clutch shaft bearing, and the preceding driven gear of transmission axle is meshed with preceding driving gear；After described
Protecting cover connects a rear box by connecting bolt, and the rear drive gear of the transmission axle is arranged on rear box by second bearing
In.
The rear drive gear end is provided with the first sealing ring, and first sealing ring is between transmission axle and pillar.
The preceding driven gear end is provided with the second sealing ring, second sealing ring be located at clutch shaft bearing and preceding casing it
Between.
The clutch shaft bearing simultaneously in preceding casing and preceding protecting cover, positioned at rear box with rear protect simultaneously by the second bearing
Gai Zhong.
The rear box is provided with the connecting portion for being used for being arranged on vehicle frame, and the connecting portion is provided with what is passed through for support shaft
Opening, described Open Side Down, and the connecting portion of rear box is provided with connecting lugs, and the connecting lugs are provided with multiple connecting holes, after
Casing is fixed on vehicle frame by connecting lugs.
The modulus of the preceding driving gear, rear drive gear and preceding driven gear is 2.5.
The preceding driving gear, rear drive gear and preceding driven gear use spiral bevel gear.
The preceding protecting cover and rear protecting cover are respectively welded and are fixed on pillar.
Beneficial effects of the present invention；Transmission axle one end of the present invention is by spline, the first clamping screw and the first packing ring with before
Driven gear is fixedly connected, and the transmission axle other end passes through spline, spring, the second clamping screw and second packing ring and rear drive gear
It is fixedly connected, the preceding protecting cover of the pillar is connected by connecting bolt with preceding casing, is provided with preceding casing by 3rd bearing
One axis, preceding driving gear is installed with the axis, the preceding driven gear of transmission axle is arranged on preceding casing by clutch shaft bearing
In, the preceding driven gear of transmission axle is meshed with preceding driving gear；After the rear protecting cover of the pillar is by connecting bolt connection one
Casing, the rear drive gear of transmission axle are arranged in rear box by second bearing.The present invention is simple in construction, leaves between axial direction
Gap, the installing space of bearing is left, be intermeshed before making between driven gear and preceding driving gear, reduce each parts and shield
The required precision of pipe and difficulty of processing, avoid under vehicle long-play or road conditions of jolting, each parts displacement, loosening,
Come off or damage, reduce financial cost, and it is more firm transmission axle is connected with preceding driven gear and rear drive gear, transmission
It is more steady, noise is reduced, reduces difficulty of riding, is increased the service life, has also ensured the personal safety of bicyclist.
Further：The rear drive gear end is provided with the first sealing ring, and preceding driven gear end is provided with the second sealing ring, leads to
Cross first, second sealing ring and carry out oil sealing, ensure that the normal work of transmission axle.
Further：The clutch shaft bearing is located in preceding casing and preceding protecting cover simultaneously, the second bearing is located at simultaneously after
Casing is with rear protecting cover, radial positioning is carried out to clutch shaft bearing and second bearing.
Further；The rear box is provided with the connecting portion for being used for being arranged on vehicle frame, and the connecting portion is provided with for branch
The opening that passes through of support axle, described Open Side Down, is easy to by rear box assembling in support shaft, so as to improve efficiency of assembling and reliable
Property, save maintenance time.
Further：The modulus of the preceding driving gear, rear drive gear and preceding driven gear is 2.5, modulus tool
There is the features such as transmission efficiency, transmission stability are good, make to ride more laborsaving.
Further：The preceding driving gear, rear drive gear and preceding driven gear use spiral bevel gear so that this
Invention has the characteristics that overlap coefficient is big, bearing capacity is strong, gearratio is high, stable drive, noise are small.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the side view of the present invention；
Fig. 3 is transmission axle and the assembling schematic diagram of pillar；
Fig. 4 is Fig. 3 left view；
Fig. 5 is Fig. 3 right view；
Fig. 6 is the structural representation that the present invention is assemblied on electric bicycle.
In accompanying drawing：1 is transmission axle, and 2 be preceding driven gear, and 3 be rear drive gear, and 4 be pillar, and 4-1 is preceding protecting cover, 4-2
For rear protecting cover, 5 be preceding casing, and 6 be preceding driving gear, and 7 be axis, and 8 be rear box, and 8-1 is connecting portion, and 8-2 is opening, 8-3
It is the first clamping screw for connecting lugs, 9,10 be the first packing ring, and 11 be spring, and 12 be second packing ring, and 13 be the second locking screw
Bolt, 14 be preceding case lid, and 15 be 3rd bearing, and 16 be second bearing, and 17 be clutch shaft bearing, and 18 be the first sealing ring, and 19 be second
Sealing ring, 20 be connecting bolt, and 21 be left chain stay, and 22 be Rear wheel support axle, and 23 be frame five-through, and 24 be rear wheel drive motor,
25 be connector, and 26 be fourth bearing, and 27 be 5th bearing, and 28 be ratchet, and 29 be rear driven gear.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Referring to shown in Fig. 1 to Fig. 6, a kind of drive assembly for bicycle, including transmission axle 1, preceding driven gear 2, after
Driving gear 3, pillar 4, preceding casing 5, preceding driving gear 6, axis 7 and rear box 8, the both ends of the transmission axle 1 are set respectively
Driven gear 2 and rear drive gear 3 before putting, the both ends of the transmission axle 1 are respectively equipped with external splines and internal thread, described preceding driven
Ladder hole is provided with gear 2, is provided with spline in the path section of ladder hole, path section and the transmission axle 1 of preceding driven gear 2 are spent
Key coordinates, and the big footpath section of preceding driven gear 2 is provided with the first clamping screw 9 and the first packing ring 10, preceding driven gear 2 and transmission axle 1
Fastened by the first clamping screw 9 and the first packing ring 10；Be provided with ladder hole in the rear drive gear 3, ladder hole it is small
Be provided with spline in the section of footpath, the small-bore section and the spline fitted of transmission axle 1 of rear drive gear 3, in the large aperture section of rear drive gear 3
Spring 11, the clamping screw 13 of second packing ring 12 and second are sequentially provided with, described one end of spring 11 is against in the section of small-bore, the other end
It is against in second packing ring 12, rear drive gear 3 is fastened with transmission axle 1 by spring, packing ring and clamping screw；The transmission of the present invention
It is engaged between axle and preceding driven gear and rear drive gear by spline, packing ring and clamping screw, connection is more firm.
Pillar 4 is arranged with outside the transmission axle 1, the both ends of the pillar 4 are respectively equipped with preceding protecting cover 4-1 and rear protecting cover 4-2,
Preceding protecting cover 4-1 and rear protecting cover 4-2 are respectively welded and are fixed on pillar 4, make shape between pillar 4 and preceding protecting cover 4-1 and rear protecting cover 4-2
Into being rigidly connected, the preceding protecting cover 4-1 is provided with countersunk head screw via, and preceding casing 5 is provided with screwed hole, and preceding protecting cover 4-1 passes through
Connecting bolt 20 is connected with preceding casing 5, and the rear protecting cover 4-2 is provided with countersunk head screw hole, and rear box 8 is provided with screwed hole, rear protecting cover
4-2 is connected by connecting bolt 20 with rear box 8, is made transmission axis connection more firm, has been ensured the normal work of transmission axle.Preceding case
Body is provided with the preceding case lid 14 being engaged, and is equipped with through hole on preceding casing 5 and preceding case lid 14, the axis 7 passes through two the 3rd
Bearing 15 be arranged on preceding casing 5 and preceding case lid 14 in, be installed with axis 7 before driving gear 6, the transmission axle 1 it is preceding driven
Gear 2 is arranged in preceding casing 5 by clutch shaft bearing 17, and the clutch shaft bearing 17 is simultaneously positioned at preceding casing 5 and preceding protecting cover 4-1
In, the preceding driven gear 2 of the transmission axle 1 is meshed with preceding driving gear 6.The rear drive gear 3 of the transmission axle 1 passes through
Two bearings 16 are arranged in rear box 8, and the second bearing 16 is located in rear box 8 and rear protecting cover 4-2 simultaneously, the rear box
8 are provided with the connecting portion 8-1 for being used for being arranged on vehicle frame, and the connecting portion is provided with the opening 8-2 that support shaft passes through, the opening
8-2 is downward, is easy to be assemblied in support shaft, improves efficiency of assembling and reliability, saves maintenance time.The connecting portion of rear box 8
8-1 is provided with multiple connecting holes provided with connecting lugs 8-3, the connecting lugs 8-3, and rear box 8 is fixed by connecting lugs 8-3
On vehicle frame.
Further：The modulus of the preceding driving gear 6, rear drive gear 3 and preceding driven gear 2 is 2.5.Before described
Driving gear 6, rear drive gear 3 and preceding driven gear 2 use spiral bevel gear.
Further：The rear drive gear end is provided with the first sealing ring 18, and first sealing ring 18 is located at transmission axle 1
Between pillar 4；The preceding driven gear end is provided with the second sealing ring 19, second sealing ring 19 be located at clutch shaft bearing 17 with
Between preceding casing.
Using the electric bicycle of drive assembly of the present invention, including electric bicycle fame, electric bicycle is arranged on
The Rear wheel support axle 22 of one end of left chain stay 21 of frame, the frame five-through 23 of the other end, Rear wheel support axle 22 are provided with rear wheel drive
Motor 24, the end cap of the rear wheel drive motor 24 are provided with outwardly extending portion, connector are arranged with the outwardly extending portion
25, connector 25 is arranged on Rear wheel support axle 22 by fourth bearing 26, and the outside of connector 25 is circumferentially distributed multiple spine
Pawl and click spring, connector 25 are provided with ratchet 28 by 5th bearing 27, and ratchet 28 is interference fitted in 5th bearing 27, institute
State driven gear 29 after being arranged one outside ratchet 28, the phase of rear drive gear 3 of the rear driven gear 29 and drive assembly of the present invention
Engagement, adjusting nut, the connecting portion 8-1 outsides of rear box 8 are provided between the connecting portion 8-1 inner sides of rear box 8 and connector 25
Provided with dust cap, Rear wheel support axle 22, which is provided with, is used to locking the motor locking nut of dust cap, motor locking nut with it is dust-proof
Packing ring is provided between lid, rear box 8 is connected by connecting portion 8-1 connecting lugs 8-3 with vehicle frame；Preceding casing be arranged on it is electronic from
Drive a vehicle in the frame five-through 23 of vehicle frame, pedal is installed at the both ends of axis 7 respectively.
The course of work of the present invention：
Situation one, when middle shaft rotation, pass sequentially through preceding driving gear, preceding driven gear, transmission axle, rear drive gear,
Driven gear is driven afterwards, so that rear driven gear rotation.Because rear driven gear is connected through a screw thread with ratchet, so ratchet
Also rotating, ratchet drives connector to rotate by ratchet, the final shell rotation for causing rear wheel drive motor.
Situation two, it is similar with situation one, when axis reversely rotates, ratchet can be transferred to so that ratchet reversely rotates,
Transmission can not be now formed between ratchet and pawl to coordinate, so connector will not be had an impact when axis reversely rotates,
The shell of rear wheel drive motor will not namely be had an impact when axis reversely rotates.
Situation three, when the shell of rear wheel drive motor normally rotates, connector synchronous rotary, now ratchet and pawl it
Between can not be formed transmission coordinate, so rear wheel drive motor shell rotation ratchet will not be had an impact.
Wherein situation three can with situation together when run, situation three can be run simultaneously with situation two.
Claims (8)
1. a kind of drive assembly for bicycle, including transmission axle, it is characterised in that：The both ends of the transmission axle are respectively equipped with
Preceding driven gear and rear drive gear, the preceding driven gear is interior to be provided with ladder hole, the path section of preceding driven gear and transmission
Axle spline fitted, the big footpath section of preceding driven gear are provided with the first clamping screw and the first packing ring, and preceding driven gear leads to transmission axle
Cross the first clamping screw and the fastening of the first packing ring；Ladder hole, the small-bore of rear drive gear are provided with the rear drive gear
Section and transmission axle spline fitted, are sequentially provided with spring, second packing ring and the second clamping screw in the large aperture section of rear drive gear,
Rear drive gear is fastened with transmission axle by spring, second packing ring and the second clamping screw；The transmission outer shaft sleeve is provided with pillar,
The both ends of the pillar are respectively equipped with preceding protecting cover and rear protecting cover, and the preceding protecting cover is described by casing before connecting bolt connection one
An axis is provided with by 3rd bearing in preceding casing, is installed with preceding driving gear on the axis, the transmission axle it is preceding from
Moving gear is arranged in preceding casing by clutch shaft bearing, and the preceding driven gear of transmission axle is meshed with preceding driving gear；After described
Protecting cover connects a rear box by connecting bolt, and the rear drive gear of the transmission axle is arranged on rear box by second bearing
In.
2. the drive assembly according to claim 1 for bicycle, it is characterised in that：The rear drive gear end is provided with
First sealing ring, first sealing ring is between transmission axle and pillar.
3. the drive assembly according to claim 1 for bicycle, it is characterised in that：The preceding driven gear end is provided with
Second sealing ring, second sealing ring is between clutch shaft bearing and preceding casing.
4. the drive assembly for bicycle according to claim 1 or 3, it is characterised in that：The clutch shaft bearing is simultaneously
In preceding casing and preceding protecting cover, the second bearing is simultaneously in rear box and rear protecting cover.
5. the drive assembly according to claim 1 for bicycle, it is characterised in that：The rear box, which is provided with, to be used for
Connecting portion on vehicle frame, the connecting portion are provided with the opening passed through for support shaft, and described Open Side Down, the company of rear box
Socket part is provided with connecting lugs, and the connecting lugs are provided with multiple connecting holes, and rear box is fixed on vehicle frame by connecting lugs.
6. the drive assembly according to claim 1 for bicycle, it is characterised in that：The preceding driving gear, rear master
The modulus of moving gear and preceding driven gear is 2.5.
7. the drive assembly for bicycle according to claim 1 or 6, it is characterised in that：The preceding driving gear, after
Driving gear and preceding driven gear use spiral bevel gear.
8. the drive assembly according to claim 1 for bicycle, it is characterised in that：The preceding protecting cover and rear protecting cover point
It is not weldingly fixed on pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302372.4A CN104859784B (en) | 2015-06-05 | 2015-06-05 | Drive assembly for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510302372.4A CN104859784B (en) | 2015-06-05 | 2015-06-05 | Drive assembly for bicycle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104859784A CN104859784A (en) | 2015-08-26 |
| CN104859784B true CN104859784B (en) | 2017-12-08 |
Family
ID=53906065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510302372.4A Expired - Fee Related CN104859784B (en) | 2015-06-05 | 2015-06-05 | Drive assembly for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104859784B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108974240A (en) * | 2017-05-31 | 2018-12-11 | 卢金堂 | A kind of bicycle or electric bicycle transmission device |
| CN108974241A (en) * | 2017-05-31 | 2018-12-11 | 卢金堂 | A kind of bicycle or electric bicycle rear-wheel transmission mechanism |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935460A (en) * | 2014-04-17 | 2014-07-23 | 重庆通盛建设工业有限公司 | Bicycle shaft driving system assembly |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2544741B2 (en) * | 1987-08-10 | 1996-10-16 | 創輝株式会社 | Shaft drive type bicycle |
| CN2089911U (en) * | 1990-12-17 | 1991-12-04 | 赖大吉 | Driving construction improving for bicycle without chain |
| CN2098457U (en) * | 1991-08-12 | 1992-03-11 | 湖南省湘华机械厂 | Improved wheel gearing of bicycle |
| CN2147179Y (en) * | 1992-11-11 | 1993-11-24 | 胡家庆 | Chainless bicycle gearing speed changing device |
| CN204775807U (en) * | 2015-06-05 | 2015-11-18 | 宋兴辉 | A transmission assembly for bicycle and electric bicycle |
-
2015
- 2015-06-05 CN CN201510302372.4A patent/CN104859784B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103935460A (en) * | 2014-04-17 | 2014-07-23 | 重庆通盛建设工业有限公司 | Bicycle shaft driving system assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104859784A (en) | 2015-08-26 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160811 Address after: The two South Industrial Park Economic Development Zone 638500 Guang'an city of Sichuan province Linshui County Applicant after: Sichuan Xindongmai Auto Parts Manufacturing Co., Ltd. Address before: 400033, Chongqing District, Shapingba Town, Nanxi village Qinglong mouth Applicant before: Song Xinghui |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171208 Termination date: 20180605 |
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| CF01 | Termination of patent right due to non-payment of annual fee |