CN110861748B - Stepless speed change device for manual bicycle - Google Patents
Stepless speed change device for manual bicycle Download PDFInfo
- Publication number
- CN110861748B CN110861748B CN201911036429.5A CN201911036429A CN110861748B CN 110861748 B CN110861748 B CN 110861748B CN 201911036429 A CN201911036429 A CN 201911036429A CN 110861748 B CN110861748 B CN 110861748B
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- wheel disc
- chain wheel
- axle
- chain
- speed change
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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
- B62M23/00—Transmissions characterised by use of other elements; Other transmissions
-
- 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
- B62M25/00—Actuators for gearing speed-change mechanisms specially adapted for cycles
- B62M25/02—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers
- B62M25/04—Actuators for gearing speed-change mechanisms specially adapted for cycles with mechanical transmitting systems, e.g. cables, levers hand actuated
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmissions By Endless Flexible Members (AREA)
Abstract
The invention relates to a manual bicycle stepless speed change device, and belongs to the technical field of bicycles. The manual bicycle stepless speed change device comprises a front chain wheel disc and a rear chain wheel disc, wherein the front chain wheel disc and the rear chain wheel disc respectively comprise a steel wire rope, a separation blade, a spring, a shifting blade, a bearing, a sliding plate, a transmission rod, a sliding block, a stress plate, a main wheel, an axle, a chain rod and an outer barrel, and the front chain wheel disc further comprises the steel wire rope. The invention realizes stepless speed change by changing the radius of the wheel disc and the transmission ratio, provides a stepless speed change device of a bicycle with optional transmission ratio, and realizes comfortable riding experience without pause and contusion.
Description
Technical Field
The invention relates to a manual bicycle stepless speed change device, and belongs to the technical field of bicycles.
Background
At present, in the speed changer of bicycles on the market, the transmission ratio of front and rear chain wheels is changed by changing the size of the chain wheels for speed regulation, and gears are required to be shifted during the speed regulation so that chains are shifted to the corresponding chain wheels. This kind of bicycle can only change speed when sprocket and chain motion when riding, and speed change can damage speed change gear by force when static, has obvious pause and frustrates and feels when the variable speed moreover to stir the gear at times too fast too slowly and can cause sprocket and rim plate not very good butt joint to lead to falling the chain, and the drive ratio of sprocket around this kind of bicycle is set for well, and optional front and back sprocket cooperation figure is limited, needs a more comfortable bicycle speed change gear.
Disclosure of Invention
In view of the above problems and deficiencies of the prior art, the present invention provides a manual bicycle stepless speed change device. The invention realizes stepless speed change by changing the radius of the wheel disc and the transmission ratio, provides a stepless speed change device of a bicycle with optional transmission ratio, and realizes comfortable riding experience without pause and contusion. The invention is realized by the following technical scheme.
A manual bicycle stepless speed change device comprises a front chain wheel disc 14 and a rear chain wheel disc 15, wherein the front chain wheel disc 14 and the rear chain wheel disc 15 respectively comprise a steel wire rope 1, a baffle plate 2, a spring 3, a shifting piece 4, a bearing 5, a sliding plate 6, a transmission rod 7, a sliding block 8, a stress plate 9, a main wheel 10, an axle 11, a chain rod 12 and an outer cylinder 13, the baffle plate 2 in the front chain wheel disc 14 and the rear chain wheel disc 15 is fixed on an axle frame and is connected and fixed with one side of the spring 3, the other side of the spring 3 is fixedly connected with the shifting piece 4, the shifting piece 4 is fixed with an inner ring of the bearing 5, an outer ring of the bearing 5 is connected and fixed with the sliding plate 6, the axle 11 is arranged in the middle of the sliding plate 6, the axle 11 is in clearance fit with the inner ring of the bearing 5, a plurality of transmission rods 7 extending uniformly are arranged on a sliding plate slideway on the other, axle 11 passes main wheel 10, axle 11 both ends tip is connected with the running-board respectively, main wheel 10 is the tapered cone that has the slope, be equipped with a plurality of slide on the main wheel 10 conical surface along the axial, be equipped with a slider 8 and slider 8 can follow the slide and slide on every slide, every slide top both sides are equipped with atress board 9, a chain bar 12 is cliied in the middle of atress board 9, main wheel 10 outside is equipped with the urceolus 13 fixed with main wheel 10 disc both sides, be equipped with a plurality of urceolus slides that correspond with the slide on the urceolus 13 circular side wall, every chain bar 12 passes an urceolus slide, preceding chain wheel dish 14 is connected with rear sprocket 15 through chain bar 12 and the chain transmission at top, all be equipped with the rope hole on separation blade 2 and the plectrum 4 in the preceding chain wheel dish 14, wire rope 1 passes separation blade 2 rope hole and spring 3 after-fixing on plectr.
The working principle of the stepless speed change device of the manual bicycle is as follows:
during riding, the axle 11 of the front chain wheel disc 14 rotates to drive the main wheel 10 and the sliding plate 6 to rotate. The slide 6, which carries the bearing 5 with the outer ring rotating and the inner ring not rotating, is held by the link means of the flap 2 and the spring 3.
During speed change, the steel wire rope 1 is manually controlled to pull the spring 3 to contract, the spring 3 (does not rotate) is compressed and pulls the inner ring of the bearing 5 to generate displacement, the outer ring (rotates) can rotate along with the sliding plate 6 and pulls the sliding plate 6 to displace, the sliding plate 6 pulls the transmission rod 7 to displace towards the sliding plate 6 side, the transmission rod 7 displaces downwards in a sliding plate slide way, the sliding block 8 connected with the transmission rod 7 is pulled to displace towards the sliding plate 6 side in a slide way formed by the stress plate 9 and the axle 11, and the sliding block 8 drives the chain rod 12 to displace towards the sliding plate 6 side. Since the main wheel 10 is approximately conical and sloped, the chain bar 12 moves from right to near left of the axle 11, the chain bar 12 is of constant length, so that the overall radius of the front sprocket 14 is reduced.
As the radius of the front chain wheel disk 14 becomes smaller and the chain loosens, the rear chain wheel disk 15 pushes the slide block 8 under the tension of the spring 3 of the rear chain wheel disk, so that the chain rod 12 moves to the right side of the axle 11, the whole radius of the rear chain wheel disk 15 becomes larger, and the chain is supported. The radius of the front chain wheel disc 14 is reduced, the radius of the rear chain wheel disc 15 is increased, the transmission ratio is changed, the speed change effect is achieved, and at the moment, labor is saved when the bicycle goes up a slope.
If the steel wire rope 1 of the front chain wheel disc 14 is loosened, the spring 3 of the front chain wheel disc 14 is loosened, the chain rod 12 is pushed to be close to the right side of the axle 11, the whole radius is increased, the length of the chain is unchanged, the radius of the rear chain wheel disc 15 is reduced, the transmission ratio is changed, and the riding speed is higher.
The invention has the beneficial effects that:
the invention changes the position of the chain rod on the axle by the telescopic spring, generates the radius change of the front chain wheel disc and the rear chain wheel disc, and changes the transmission ratio. The invention has no pause and contusion in stepless speed change, has stable structure, can manually and randomly change the radius of the chain wheel, and has the advantages of simple operation, comfortable riding and the like.
Drawings
Fig. 1 is a schematic view of the installation position of the present invention.
Fig. 2 is a schematic view of the installation position of the present invention.
FIG. 3 is a schematic view of the front sprocket, rear sprocket and chain assembly of the present invention.
Fig. 4 is an internal schematic view of the transmission of the present invention (chain bar omitted).
Fig. 5 is an exploded view a of the transmission of the present invention (chain bar omitted).
Fig. 6 is an exploded view of the transmission of the present invention (chain bar omitted).
FIG. 7 is the connection diagram of the main wheel, the sliding block, the stress plate, the chain rod and the transmission rod of the present invention.
In the figure: 1-steel wire rope, 2-baffle plate, 3-spring, 4-plectrum, 5-bearing, 6-sliding plate, 7-transmission rod, 8-sliding block, 9-stress plate, 10-main wheel, 11-axle, 12-chain rod, 13-outer cylinder, 14-front chain wheel disc and 15-rear chain wheel disc.
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
Example 1
As shown in figures 1 to 7, the manual bicycle stepless speed change device comprises a front chain wheel disc 14 and a rear chain wheel disc 15, wherein the front chain wheel disc 14 and the rear chain wheel disc 15 respectively comprise a steel wire rope 1, a baffle plate 2, a spring 3, a shifting sheet 4, a bearing 5, a sliding plate 6, a transmission rod 7, a sliding block 8, a stress plate 9, a main wheel 10, an axle 11, a chain rod 12 and an outer cylinder 13, the baffle plate 2 in the front chain wheel disc 14 and the rear chain wheel disc 15 is fixedly connected with an axle frame and fixedly connected with one side of the spring 3, the other side of the spring 3 is fixedly connected with the shifting sheet 4, the shifting sheet 4 is fixedly connected with an inner ring of the bearing 5, an outer ring of the bearing 5 is fixedly connected with the sliding plate 6, the axle 11 is arranged in the middle of the sliding plate 6, the axle 11 is in clearance fit with the inner ring of the bearing 5, a plurality of transmission rods 7 extending uniformly are arranged on a sliding plate slide way on, axle 11 passes main wheel 10, axle 11 both ends tip is connected with the running-board respectively, main wheel 10 is the tapered cone that has the slope, be equipped with a plurality of slide on the main wheel 10 conical surface along the axial, be equipped with a slider 8 and slider 8 can follow the slide and slide on every slide, every slide top both sides are equipped with atress board 9, a chain bar 12 is cliied in the middle of atress board 9, main wheel 10 outside is equipped with the urceolus 13 fixed with main wheel 10 disc both sides, be equipped with a plurality of urceolus slides that correspond with the slide on the urceolus 13 circular side wall, every chain bar 12 passes an urceolus slide, preceding chain wheel dish 14 is connected with rear sprocket 15 through chain bar 12 and the chain transmission at top, all be equipped with the rope hole on separation blade 2 and the plectrum 4 in the preceding chain wheel dish 14, wire rope 1 passes separation blade 2 rope hole and spring 3 after-fixing on plectr.
While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes can be made without departing from the spirit and scope of the present invention.
Claims (1)
1. A manual bicycle stepless speed change device is characterized in that: comprises a front chain wheel disc (14) and a rear chain wheel disc (15), wherein the front chain wheel disc (14) and the rear chain wheel disc (15) respectively comprise a steel wire rope (1), a baffle (2), a spring (3), a shifting piece (4), a bearing (5), a sliding plate (6), a transmission rod (7), a sliding block (8), a stress plate (9), a main wheel (10), an axle (11), a chain rod (12) and an outer cylinder (13), the baffle (2) in the front chain wheel disc (14) and the rear chain wheel disc (15) is fixed on an axle frame and is connected and fixed with one side of the spring (3), the other side of the spring (3) is fixedly connected with the shifting piece (4), the shifting piece (4) is fixed with an inner ring of the bearing (5), an outer ring of the bearing (5) is connected and fixed with the sliding plate (6), the axle (11) is arranged in the middle of the sliding plate (6), the axle (11) is in clearance fit with the bearing (5), a plurality of uniform extended transmission, the end part of each transmission rod (7) is fixedly connected with a slide block (8), the top of each slide block (8) is provided with a chain rod (12) which is vertical to the slide block (8), an axle (11) penetrates through a main wheel (10), the end parts of the two ends of the axle (11) are respectively connected with pedals, the main wheel (10) is a tapered body with gradient, the tapered surface of the main wheel (10) is axially provided with a plurality of slideways, each slideway is provided with a slide block (8) and the slide block (8) can slide along the slideway, both sides of the top of each slideway are provided with stress plates (9), the middle of each stress plate (9) clamps one chain rod (12), the outer part of the main wheel (10) is provided with outer cylinders (13) which are fixed with both sides of the circular surface of the main wheel (10), the circular side wall of each outer cylinder (13) is provided with a plurality of outer cylinder slideways which correspond to the slideways, each chain rod (12) penetrates through one outer cylinder slideway, a front, rope holes are formed in the blocking piece (2) and the shifting piece (4) in the front chain wheel disc (14), and the steel wire rope (1) penetrates through the rope holes of the blocking piece (2) and the spring (3) and then is fixed to the rope holes of the shifting piece (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911036429.5A CN110861748B (en) | 2019-10-29 | 2019-10-29 | Stepless speed change device for manual bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911036429.5A CN110861748B (en) | 2019-10-29 | 2019-10-29 | Stepless speed change device for manual bicycle |
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| Publication Number | Publication Date |
|---|---|
| CN110861748A CN110861748A (en) | 2020-03-06 |
| CN110861748B true CN110861748B (en) | 2021-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911036429.5A Active CN110861748B (en) | 2019-10-29 | 2019-10-29 | Stepless speed change device for manual bicycle |
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| Country | Link |
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| CN (1) | CN110861748B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19735001A1 (en) * | 1997-08-13 | 1998-05-14 | Peter Schuller | Automatic gear for bicycle |
| CN102062196A (en) * | 2009-06-02 | 2011-05-18 | 杨鲁川 | Equivalent diameter adjustable chain wheel device, stepless speed change device and power system |
| CN102069891A (en) * | 2009-11-23 | 2011-05-25 | 卞焕永 | A transmission shift for bicycle |
| CN102720817A (en) * | 2012-06-18 | 2012-10-10 | 任孝忠 | Speed change gear with non-closed chains and function of cone-assisted enlargement and reduction |
| CN203255336U (en) * | 2013-05-23 | 2013-10-30 | 昆明学院 | Stepless speed change device for bicycle |
| CN203714130U (en) * | 2013-12-31 | 2014-07-16 | 马一杰 | Electronic control stepless speed change belt transmission device used for bicycle |
| CN203780728U (en) * | 2013-12-25 | 2014-08-20 | 桂林电子科技大学 | Stepless speed change device of bicycle |
| CN104527914A (en) * | 2014-12-30 | 2015-04-22 | 吕元胜 | Stepless transmission bicycle applying same |
| CN107472453A (en) * | 2017-08-20 | 2017-12-15 | 辛永升 | Voluntarily overall width V bands stepless gear system |
| CN208102245U (en) * | 2018-04-20 | 2018-11-16 | 临沂大学 | Bicycle buncher |
| CN208816619U (en) * | 2018-06-15 | 2019-05-03 | 李存伟 | Stepless automatic transmission |
| CN209258322U (en) * | 2018-12-18 | 2019-08-16 | 李汯锜 | Stepless speed change device and bicycle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140102588A (en) * | 2013-02-14 | 2014-08-22 | 변환영 | Unauthorized transmission for bicycles |
| KR20150009684A (en) * | 2013-07-17 | 2015-01-27 | 이동엽 | The power transmission apparatus for a bicycle |
-
2019
- 2019-10-29 CN CN201911036429.5A patent/CN110861748B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19735001A1 (en) * | 1997-08-13 | 1998-05-14 | Peter Schuller | Automatic gear for bicycle |
| CN102062196A (en) * | 2009-06-02 | 2011-05-18 | 杨鲁川 | Equivalent diameter adjustable chain wheel device, stepless speed change device and power system |
| CN102069891A (en) * | 2009-11-23 | 2011-05-25 | 卞焕永 | A transmission shift for bicycle |
| CN102720817A (en) * | 2012-06-18 | 2012-10-10 | 任孝忠 | Speed change gear with non-closed chains and function of cone-assisted enlargement and reduction |
| CN203255336U (en) * | 2013-05-23 | 2013-10-30 | 昆明学院 | Stepless speed change device for bicycle |
| CN203780728U (en) * | 2013-12-25 | 2014-08-20 | 桂林电子科技大学 | Stepless speed change device of bicycle |
| CN203714130U (en) * | 2013-12-31 | 2014-07-16 | 马一杰 | Electronic control stepless speed change belt transmission device used for bicycle |
| CN104527914A (en) * | 2014-12-30 | 2015-04-22 | 吕元胜 | Stepless transmission bicycle applying same |
| CN107472453A (en) * | 2017-08-20 | 2017-12-15 | 辛永升 | Voluntarily overall width V bands stepless gear system |
| CN208102245U (en) * | 2018-04-20 | 2018-11-16 | 临沂大学 | Bicycle buncher |
| CN208816619U (en) * | 2018-06-15 | 2019-05-03 | 李存伟 | Stepless automatic transmission |
| CN209258322U (en) * | 2018-12-18 | 2019-08-16 | 李汯锜 | Stepless speed change device and bicycle |
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| Publication number | Publication date |
|---|---|
| CN110861748A (en) | 2020-03-06 |
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