CN112960065A - Power input device suitable for bicycle - Google Patents
Power input device suitable for bicycle Download PDFInfo
- Publication number
- CN112960065A CN112960065A CN202110317538.5A CN202110317538A CN112960065A CN 112960065 A CN112960065 A CN 112960065A CN 202110317538 A CN202110317538 A CN 202110317538A CN 112960065 A CN112960065 A CN 112960065A
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- gear shaft
- bearing
- shaft
- gear
- output shaft
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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
- B62M11/145—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 bottom bracket
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a power input device suitable for a bicycle, which comprises a first gear shaft and a second gear shaft which are rotationally connected, wherein the surfaces of the first gear shaft and the second gear shaft are respectively provided with a first straight gear and a second straight gear; the first output shaft is fixedly connected with the second output shaft, the third gear shaft is rotatably installed on the surface of the first output shaft, the fourth gear shaft is rotatably installed on the surface of the second output shaft, and the third gear shaft and the fourth gear shaft are respectively provided with a first limiting assembly and a second limiting assembly, so that the first output shaft always rotates along the same direction. When the bicycle is mounted on a bicycle, the first output shaft can continuously rotate along the same direction without the rotation degree of the pedal connecting rod during riding, and the transmission efficiency is high.
Description
Technical Field
The invention belongs to the technical field of product engineering, and particularly relates to a power input device suitable for a bicycle.
Background
Bicycles, also known as bicycles or bicycles, are typically two-wheeled small land vehicles. After a person rides the vehicle, the person steps on the pedal as power, and the vehicle is a green and environment-friendly vehicle. The bicycle is of various types, including single-person bicycles, double-person bicycles and multi-person bicycles.
When the existing power input device suitable for the bicycle is used, the mechanism has dead point positions, so that the transmission efficiency of the traditional mechanism is lower.
Therefore, in order to solve the above problem, it is necessary to develop and design a power input device for a bicycle, which solves the problem of low efficiency of the conventional power input device for a bicycle.
Disclosure of Invention
The present invention is directed to overcome the deficiencies of the prior art and to provide a power input device for a bicycle, which solves the above problems in the prior art.
The invention provides the following technical scheme:
a power input device suitable for a bicycle comprises a base, a first gear shaft, a second gear shaft, a third gear shaft, a fourth gear shaft, a transmission assembly, a first output shaft and a second output shaft, wherein the first gear shaft, the second gear shaft, the third gear shaft and the fourth gear shaft are arranged on the base;
the transmission assembly is arranged between the third gear shaft and the fourth gear shaft and can enable the rotating directions of the third gear shaft and the fourth gear shaft to be opposite all the time;
the first output shaft and the second output shaft are fixedly connected, the third gear shaft is rotatably installed on the surface of the first output shaft, the fourth gear shaft is rotatably installed on the surface of the second output shaft, and the third gear shaft and the fourth gear shaft are respectively provided with a first limiting assembly and a second limiting assembly, so that the first output shaft always rotates along the same direction.
Furthermore, a first ratchet wheel is arranged on the surface of the first output shaft, the first limiting assembly comprises a first screw, a first spring and a first pawl, the first screw is mounted in a threaded hole of the third gear shaft, two ends of the first spring are tightly attached to the first screw and the first pawl respectively, and the first pawl is tightly attached to the first ratchet wheel.
Furthermore, a second ratchet wheel is arranged on the surface of the second output shaft, the second limiting assembly comprises a second screw, a second spring and a second pawl, the second screw is installed in a threaded hole of the fourth gear shaft, two ends of the second spring are tightly attached to the second screw and the second pawl respectively, and the second pawl is tightly attached to the second ratchet wheel.
Furthermore, the first gear shaft, the second gear shaft, the first output shaft and the second output shaft are respectively installed in the installation holes of the base, the surfaces of the first gear shaft, the second gear shaft, the first output shaft and the second output shaft are respectively provided with a first bearing, a second bearing, a third bearing and a fourth bearing, and the first bearing, the second bearing, the third bearing and the fourth bearing are respectively installed in a bearing seat of the base.
Furthermore, a first oil seal, a second oil seal, a third oil seal and a fourth oil seal are respectively arranged on the surfaces of the first gear shaft, the second gear shaft, the first output shaft and the second output shaft.
Furthermore, a fifth bearing and a first inner snap ring are arranged between the third gear shaft and the first output shaft, and the first inner snap ring is tightly attached to the surface of the fifth bearing; and a sixth bearing and a second inner snap ring are arranged between the fourth gear shaft and the second output shaft, and the second inner snap ring is tightly attached to the surface of the sixth bearing.
Further, a seventh bearing is mounted on the outer surface of the first gear shaft and is mounted in a bearing seat of the base; and an eighth bearing is arranged between the first gear shaft and the second gear shaft.
Furthermore, the transmission assembly comprises a fifth gear shaft, a first bevel gear arranged on the surface of the fifth gear shaft, a second bevel gear arranged on the surface of the third gear shaft and a third bevel gear arranged on the surface of the fourth gear shaft, wherein the first bevel gear is respectively meshed with the second bevel gear and the third bevel gear.
Furthermore, the fifth gear shaft is installed on the base, a ninth bearing is installed on the surface of the fifth gear shaft, and the ninth bearing is installed in a bearing seat of the base.
Further, the surface of the base is provided with an upper cover, and the base and the upper cover are fixedly connected through a first bolt and a first nut which are meshed with each other.
Compared with the prior art, the invention has the beneficial effects that:
with this device fixed mounting on bicycle frame, control two bicycle pedal connecting rods and connect first gear shaft respectively, when riding, do not need the footboard connecting rod rotation degree just can make first output shaft rotate along the equidirectional continuity, transmission efficiency is high.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention from another perspective;
FIG. 3 is a schematic top view of the present invention shown in FIG. 3;
FIG. 4 is a cross-sectional view A-A of FIG. 4;
FIG. 5 is a cross-sectional view B-B of FIG. 4;
FIG. 6 is a cross-sectional view C-C of FIG. 4;
FIG. 7 is a cross-sectional view D-D of FIG. 4;
FIG. 8 is an assembled schematic view of the first output shaft and the second output shaft;
FIG. 9 is an external structural view of the present invention;
labeled as: 1-second gear shaft, 2-second oil seal, 3-second bearing, 4-base, 5-first bolt, 6-first nut, 7-seventh bearing, 8-first gear shaft, 9-first bearing, 10-first oil seal, 11-first output shaft, 12-third oil seal, 13-third bearing, 14-ninth bearing, 15-fifth gear shaft, 16-second inner snap ring, 17-sixth bearing, 18-second screw, 19-fourth bearing, 20-fourth oil seal, 21-third gear shaft, 22-fourth gear shaft, 23-second output shaft, 24-fifth bearing, 25-first inner snap ring, 26-eighth bearing, 27-second spring, 28-second pawl, 29-a first screw, 30-a first spring, 31-a first pawl, 32-an upper cover, 33-a first straight gear, 34-a second straight gear, 35-a third straight gear, 36-a fourth straight gear, 37, a first bevel gear, 38-a second bevel gear, 39-a third bevel gear, 40-a first ratchet wheel and 42-a second ratchet wheel.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
It should be noted that in the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1, a power input device for a bicycle comprises a base 4, and a first gear shaft 8, a second gear shaft 1, a third gear shaft 21, a fourth gear shaft 22, a transmission assembly, a first output shaft 11 and a second output shaft 23 which are arranged on the base 4; the first gear shaft 8 is rotatably connected with the second gear shaft 1, a first straight gear 33 and a second straight gear 34 are respectively arranged on the surfaces of the first gear shaft 8 and the second gear shaft 1, a third straight gear 35 meshed with the first straight gear 33 is arranged on the surface of the third gear shaft 21, a fourth straight gear 36 meshed with the second straight gear 34 is arranged on the surface of the fourth gear shaft 22, and a transmission assembly is arranged between the third gear shaft 21 and the fourth gear shaft 22 and can enable the rotating directions of the third gear shaft 21 and the fourth gear shaft 22 to be opposite all the time; the first output shaft 11 is fixedly connected with the second output shaft 23, the third gear shaft 21 is rotatably installed on the surface of the first output shaft 11, the fourth gear shaft 22 is rotatably installed on the surface of the second output shaft 23, and the third gear shaft 21 and the fourth gear shaft 22 are respectively provided with a first limiting assembly and a second limiting assembly, so that the first output shaft 11 always rotates along the same direction.
As shown in fig. 3, 6 and 8, the first ratchet wheel 40 is arranged on the surface of the first output shaft 11, the first limiting component comprises a first screw 29, a first spring 30 and a first pawl 31, the first screw 29 is installed in the threaded hole of the third gear shaft 21, two ends of the first spring 30 are respectively tightly attached to the first screw 29 and the first pawl 31, and the first pawl 31 is tightly attached to the first ratchet wheel 40.
As shown in fig. 3, 7 and 8, the second ratchet wheel 42 is arranged on the surface of the second output shaft 23, the second limiting component comprises a second screw 18, a second spring 27 and a second pawl 28, the second screw 18 is installed in the threaded hole of the fourth gear shaft 22, two ends of the second spring 27 are respectively tightly attached to the second screw 18 and the second pawl 28, and the second pawl 28 is tightly attached to the second ratchet wheel 42.
As shown in fig. 1, the first gear shaft 8, the second gear shaft 1, the first output shaft 11 and the second output shaft 23 are respectively installed in the installation holes of the base 4, the first bearing 9, the second bearing 3, the third bearing 13 and the fourth bearing 19 are respectively installed on the surfaces of the first gear shaft 8, the second gear shaft 1, the first output shaft 11 and the second output shaft 23, and the first bearing 9, the second bearing 3, the third bearing 13 and the fourth bearing 19 are respectively installed in the bearing seats of the base 4.
As shown in fig. 2-4, a fifth bearing 24 and a first inner snap ring 25 are installed between the third gear shaft 21 and the first output shaft 11, and the first inner snap ring 25 is tightly attached to the surface of the fifth bearing 24; and a sixth bearing 17 and a second inner snap ring 16 are arranged between the fourth gear shaft 19 and the second output shaft 23, and the second inner snap ring 16 is tightly attached to the surface of the sixth bearing 17.
As shown in fig. 1, 3 and 5, the seventh bearing 7 is mounted on the outer surface of the first gear shaft 8, and the seventh bearing 7 is mounted in a bearing seat of the base 4 for supporting the first gear shaft 8; an eighth bearing 26 is installed between the first gear shaft 8 and the second gear shaft 1 so that the two can rotate relatively.
As shown in fig. 1, the transmission assembly includes a fifth gear shaft 15, a first bevel gear 37 mounted on a surface of the fifth gear shaft 15, a second bevel gear 38 mounted on a surface of the third gear shaft 21, and a third bevel gear 39 mounted on a surface of the fourth gear shaft 22, the first bevel gear 37 being engaged with the second bevel gear 38 and the third bevel gear 39, respectively. The fifth gear shaft 15 is installed on the base 4, the ninth bearing 14 is installed on the surface of the fifth gear shaft 15, and the ninth bearing 14 is installed in the bearing seat of the base 4.
As shown in fig. 9, the upper cover 32 is mounted on the surface of the base 4, and the base 4 and the upper cover 32 are fixedly connected by the first bolt 5 and the first nut 6 engaged with each other.
The working principle of the embodiment is as follows: the device is fixedly arranged on a bicycle frame, and a left bicycle pedal connecting rod and a right bicycle pedal connecting rod are respectively connected with a first gear shaft 8. When the first gear shaft 8 drives the third gear shaft 21, since the second bevel gear 38 is engaged with the first bevel gear 37 and the third bevel gear 39 is also engaged with the first bevel gear 37, the third gear shaft 21 and the fourth gear shaft 22 are always rotated in opposite directions, so the first gear shaft 8 and the second gear shaft 1 are always rotated in opposite directions. Referring to fig. 6 and 7, when the third gear shaft 21 rotates clockwise, the first pawl 31 engages with the first ratchet 40 of the first output shaft 11, so that the first output shaft 11 also rotates clockwise, and at this time, the fourth gear shaft 22 rotates counterclockwise, and since the first output shaft 11 and the second output shaft 23 are connected together, the second output shaft 23 also rotates clockwise, and at this time, the second pawl 28 does not engage with the second ratchet on the surface of the second output shaft 23, and is in an unlocked state, and does not hinder the rotation of the first output shaft 11. Similarly, when the third gear shaft 21 rotates counterclockwise, the first pawl 31 and the first ratchet wheel 40 are in an unlocked state, and at this time, the fourth gear shaft 22 rotates clockwise, the second pawl 28 and the second ratchet wheel 42 are engaged, so that the second output shaft 23 also rotates clockwise, and the first output shaft 11 connected to the second output shaft 23 also keeps rotating clockwise. Therefore, when riding, the first output shaft 11 can continuously rotate without rotating the pedal connecting rod by 360 degrees, thereby avoiding the occurrence of mechanism dead points and improving the transmission efficiency.
Example 2
As shown in fig. 1, the present embodiment provides a power input device for a bicycle, wherein a first oil seal 10, a second oil seal 2, a third oil seal 12 and a fourth oil seal 20 are respectively mounted on the surfaces of a first gear shaft 8, a second gear shaft 1, a first output shaft 11 and a second output shaft 23; the first oil seal 10 is positioned between the first bearing 9 and the base 4, the second oil seal 2 is positioned between the second bearing 3 and the base 4, the third oil seal 12 is positioned between the third bearing 13 and the base 4, the fourth oil seal 20 is positioned between the fourth bearing 19 and the base 4, and each oil seal has a sealing effect.
The rest of the structure of this example is the same as example 1.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A power input device suitable for a bicycle is characterized by comprising a base, a first gear shaft, a second gear shaft, a third gear shaft, a fourth gear shaft, a transmission assembly, a first output shaft and a second output shaft, wherein the first gear shaft, the second gear shaft, the third gear shaft, the fourth gear shaft, the transmission assembly, the first output shaft and the second output shaft are arranged on the base;
the transmission assembly is arranged between the third gear shaft and the fourth gear shaft and can enable the rotating directions of the third gear shaft and the fourth gear shaft to be opposite all the time;
the first output shaft and the second output shaft are fixedly connected, the third gear shaft is rotatably installed on the surface of the first output shaft, the fourth gear shaft is rotatably installed on the surface of the second output shaft, and the third gear shaft and the fourth gear shaft are respectively provided with a first limiting assembly and a second limiting assembly, so that the first output shaft always rotates along the same direction.
2. The power input device for bicycles of claim 1, wherein the first output shaft has a first ratchet wheel on its surface, the first limiting component comprises a first screw, a first spring and a first pawl, the first screw is mounted in the threaded hole of the third gear shaft, two ends of the first spring are respectively closely attached to the first screw and the first pawl, and the first pawl is closely attached to the first ratchet wheel.
3. The power input device for bicycles of claim 2, wherein the second output shaft has a second ratchet wheel on its surface, the second limiting member comprises a second screw, a second spring and a second pawl, the second screw is mounted in the threaded hole of the fourth gear shaft, two ends of the second spring are respectively closely attached to the second screw and the second pawl, and the second pawl is closely attached to the second ratchet wheel.
4. The power input apparatus for a bicycle according to claim 1, wherein the first gear shaft, the second gear shaft, the first output shaft and the second output shaft are respectively installed in the installation holes of the base, the first bearing, the second bearing, the third bearing and the fourth bearing are respectively installed on the surfaces of the first gear shaft, the second gear shaft, the first output shaft and the second output shaft, and the first bearing, the second bearing, the third bearing and the fourth bearing are respectively installed in the bearing seats of the base.
5. The power input apparatus for a bicycle according to claim 1, wherein the first gear shaft, the second gear shaft, the first output shaft, and the second output shaft are surface-mounted with a first oil seal, a second oil seal, a third oil seal, and a fourth oil seal, respectively.
6. The power input apparatus for a bicycle according to claim 1, wherein a fifth bearing and a first inner snap ring are installed between the third gear shaft and the first output shaft, and the first inner snap ring is closely attached to a fifth bearing surface; and a sixth bearing and a second inner snap ring are arranged between the fourth gear shaft and the second output shaft, and the second inner snap ring is tightly attached to the surface of the sixth bearing.
7. The power input apparatus for a bicycle according to claim 1, wherein a seventh bearing is installed on an outer surface of the first gear shaft, the seventh bearing being installed in a bearing housing of the base; and an eighth bearing is arranged between the first gear shaft and the second gear shaft.
8. The power input apparatus for a bicycle according to claim 1, wherein the transmission assembly includes a fifth gear shaft, a first bevel gear mounted on a surface of the fifth gear shaft, a second bevel gear mounted on a surface of the third gear shaft, and a third bevel gear mounted on a surface of the fourth gear shaft, the first bevel gear being engaged with the second bevel gear and the third bevel gear, respectively.
9. The power input apparatus for a bicycle according to claim 8, wherein the fifth gear shaft is mounted on the base, the fifth gear shaft having a ninth bearing surface mounted thereon, the ninth bearing being mounted in a bearing housing of the base.
10. The power input device for a bicycle according to claim 1, wherein the base is surface-mounted with an upper cover, and the base and the upper cover are fixedly connected by a first bolt and a first nut engaged with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110317538.5A CN112960065A (en) | 2021-03-25 | 2021-03-25 | Power input device suitable for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110317538.5A CN112960065A (en) | 2021-03-25 | 2021-03-25 | Power input device suitable for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112960065A true CN112960065A (en) | 2021-06-15 |
Family
ID=76278344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110317538.5A Pending CN112960065A (en) | 2021-03-25 | 2021-03-25 | Power input device suitable for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112960065A (en) |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104988A (en) * | 1986-08-14 | 1988-02-17 | 韩英斌 | Bicycle drive |
| JP2006137401A (en) * | 2004-11-14 | 2006-06-01 | Riichi Tomoyose | Bicycle driven by worm gear |
| CN2900340Y (en) * | 2006-04-21 | 2007-05-16 | 邵国强 | Manpower booster device and its power saving bicycle, tricycle and foot pedal boat |
| CN201283989Y (en) * | 2007-12-28 | 2009-08-05 | 谢凯年 | Coaxial double flywheel bevel wheel group capable of improving manpower mechanical efficiency |
| KR101050313B1 (en) * | 2010-10-21 | 2011-07-19 | 서식원 | The power transmission device of chainless bicycle |
| CN102199861A (en) * | 2011-05-10 | 2011-09-28 | 海尔集团公司 | Pedal type washing machine and multi-gear transmission system used for same |
| CN102619937A (en) * | 2012-04-09 | 2012-08-01 | 哈尔滨工业大学 | Device for converting reciprocating rotation into rotation in same direction |
| CN204895553U (en) * | 2015-09-01 | 2015-12-23 | 三峡大学 | Crashproof energy -absorbing device of auto steering dish |
| CN205327326U (en) * | 2016-01-16 | 2016-06-22 | 徐奇凡 | Pedal cross box |
| CN109501922A (en) * | 2018-11-01 | 2019-03-22 | 广州大学 | A kind of bicycle driven by the linear reciprocation mode of trampling |
| CN109562817A (en) * | 2016-04-20 | 2019-04-02 | J·陈 | Manpower drives ship or land craft |
| CN209241186U (en) * | 2018-10-31 | 2019-08-13 | 南京航空航天大学 | A kind of Movable truck protective guard based on ratchet mechanism |
| CN111098970A (en) * | 2020-01-13 | 2020-05-05 | 周坚 | Up-down treading type bicycle |
| CN111717321A (en) * | 2020-07-10 | 2020-09-29 | 深圳市南博自动化设备有限公司 | Bicycle with a wheel |
| CN212738420U (en) * | 2020-06-15 | 2021-03-19 | 党胜利 | Vehicle driving mechanism |
-
2021
- 2021-03-25 CN CN202110317538.5A patent/CN112960065A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86104988A (en) * | 1986-08-14 | 1988-02-17 | 韩英斌 | Bicycle drive |
| JP2006137401A (en) * | 2004-11-14 | 2006-06-01 | Riichi Tomoyose | Bicycle driven by worm gear |
| CN2900340Y (en) * | 2006-04-21 | 2007-05-16 | 邵国强 | Manpower booster device and its power saving bicycle, tricycle and foot pedal boat |
| CN201283989Y (en) * | 2007-12-28 | 2009-08-05 | 谢凯年 | Coaxial double flywheel bevel wheel group capable of improving manpower mechanical efficiency |
| KR101050313B1 (en) * | 2010-10-21 | 2011-07-19 | 서식원 | The power transmission device of chainless bicycle |
| CN102199861A (en) * | 2011-05-10 | 2011-09-28 | 海尔集团公司 | Pedal type washing machine and multi-gear transmission system used for same |
| CN102619937A (en) * | 2012-04-09 | 2012-08-01 | 哈尔滨工业大学 | Device for converting reciprocating rotation into rotation in same direction |
| CN204895553U (en) * | 2015-09-01 | 2015-12-23 | 三峡大学 | Crashproof energy -absorbing device of auto steering dish |
| CN205327326U (en) * | 2016-01-16 | 2016-06-22 | 徐奇凡 | Pedal cross box |
| CN109562817A (en) * | 2016-04-20 | 2019-04-02 | J·陈 | Manpower drives ship or land craft |
| CN209241186U (en) * | 2018-10-31 | 2019-08-13 | 南京航空航天大学 | A kind of Movable truck protective guard based on ratchet mechanism |
| CN109501922A (en) * | 2018-11-01 | 2019-03-22 | 广州大学 | A kind of bicycle driven by the linear reciprocation mode of trampling |
| CN111098970A (en) * | 2020-01-13 | 2020-05-05 | 周坚 | Up-down treading type bicycle |
| CN212738420U (en) * | 2020-06-15 | 2021-03-19 | 党胜利 | Vehicle driving mechanism |
| CN111717321A (en) * | 2020-07-10 | 2020-09-29 | 深圳市南博自动化设备有限公司 | Bicycle with a wheel |
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