CN210555419U - Gear transmission structure of electric bicycle - Google Patents
Gear transmission structure of electric bicycle Download PDFInfo
- Publication number
- CN210555419U CN210555419U CN201921519458.2U CN201921519458U CN210555419U CN 210555419 U CN210555419 U CN 210555419U CN 201921519458 U CN201921519458 U CN 201921519458U CN 210555419 U CN210555419 U CN 210555419U
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- gear
- transmission shaft
- flywheel
- small
- bevel gear
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Abstract
The utility model discloses a gear transmission structure of an electric bicycle, two ends of a box body are respectively fixed at the center of a bicycle body and the center of a rear wheel, and a box cover is buckled with the box body; the middle shaft transmission shaft is provided with a first-stage big bevel gear through the front ends of the vehicle body and the box body and is connected with the flywheel gear transmission shaft through a gear transmission shaft, a first-stage small bevel gear and a second-stage small bevel gear are respectively arranged at two ends of the gear transmission shaft, and the first-stage small bevel gear is in contact connection with the first-stage big bevel gear; one end of the flywheel gear transmission shaft is fixed with the small flywheel gear through a copper sleeve, and the other end of the flywheel gear transmission shaft is provided with a bearing; the small flywheel, the rear drive motor and the rear wheel are fixed together, and the small flywheel is connected with the second-stage small bevel gear through a small flywheel gear. The utility model discloses an adopt the gear drive structure to replace traditional chain drive for transmission efficiency is higher, more laborsaving, adopts motor and gear drive matched with mode to make electric bicycle more stable when advancing.
Description
Technical Field
The utility model relates to an electric motor car accessory technical field, more specifically the saying so relates to an electric bicycle gear drive structure.
Background
In recent years, the use of electric vehicles is more common in the life of people, and the electric vehicles are popular with people due to the characteristics of low hand difficulty, convenient operation and high safety factor.
What the electric motor car on the existing market often taken is that chain structure and motor cooperation drive, and traditional chain drive not only makes the transmission efficiency step-down, and in use is more hard, and the condition that the chain drops very easily appears in use moreover leads to the safety problem to appear.
Therefore, the technical problem to be solved by those skilled in the art is how to provide a transmission structure of an electric bicycle with high transmission efficiency and more stable performance.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an electric bicycle gear drive structure that not only transmission efficiency is high, and the performance is more stable moreover.
In order to achieve the above object, the utility model provides a following technical scheme: the method mainly comprises the following steps: the device comprises a pedal, a box cover, a middle shaft transmission shaft, a gear transmission shaft, a fly gear transmission shaft, a box body, a flywheel, a rear drive motor and a rear wheel; wherein, two ends of the box body are respectively fixed at the centers of the vehicle body and the rear wheel, and the box cover is buckled with the box body; the middle shaft transmission shaft is provided with a first-stage big bevel gear through the front ends of the vehicle body and the box body and is connected with the flywheel gear transmission shaft through a gear transmission shaft, a first-stage small bevel gear and a second-stage small bevel gear are respectively arranged at two ends of the gear transmission shaft, and the first-stage small bevel gear is in contact connection with the first-stage big bevel gear; one end of the flywheel gear transmission shaft is fixed with the small flywheel gear through a copper sleeve, and the other end of the flywheel gear transmission shaft is provided with a bearing; the small flywheel, the rear drive motor and the rear wheel are fixed together, and the small flywheel is connected with the second-stage small bevel gear through a small flywheel gear.
Preferably, in the above gear transmission structure for an electric bicycle, pedals are respectively provided at two ends of the middle shaft transmission shaft, and a bearing is provided at a joint of the pedals and the middle shaft transmission shaft, and the bearing is fixed on the case cover.
Preferably, in the above gear transmission structure for an electric bicycle, the small flywheel is a one-way gear, and is divided into an inner ring and an outer ring, wherein when the bicycle moves forwards in the pedal mode, the outer ring and the inner ring rotate simultaneously, and when the bicycle moves forwards in the electric mode, the outer ring is not moved, and the rear drive motor drives the inner ring to rotate.
According to the above technical scheme, compare with prior art, the utility model discloses an electric bicycle gear drive structure is provided, the utility model discloses an adopt gear drive structure to replace traditional chain drive for transmission efficiency is higher, more laborsaving, adopts motor and gear drive matched with mode to make electric bicycle more stable when advancing, makes the utility model has the characteristics of simple structure, high, the stability of transmission efficiency are good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1, which is a gear transmission structure of an electric bicycle according to the present invention.
The utility model discloses, mainly include: the device comprises a pedal 5, a box cover 12, a middle shaft transmission shaft 2, a gear transmission shaft 6, a fly gear transmission shaft 6, a box body 11, a flywheel, a rear drive motor 15 and a rear wheel 16; wherein, two ends of the box body 11 are respectively fixed at the center of the vehicle body 1 and the rear wheel 16, and the box cover 12 is buckled with the box body 11; the middle shaft transmission shaft 2 is provided with a first-stage big bevel gear 3 through the front ends of the vehicle body 1 and the box body 11, and is connected with a flywheel gear transmission shaft 9 through a gear transmission shaft 6, a first-stage small bevel gear 7 and a second-stage small bevel gear 8 are respectively arranged at two ends of the gear transmission shaft 6, and the first-stage small bevel gear 7 is in contact connection with the first-stage big bevel gear 3; one end of the flywheel gear transmission shaft 9 is fixed with a small flywheel gear 13 through a copper sleeve 10, and the other end is provided with a bearing 4; the small flywheel 14, the rear drive motor 15 and the rear wheel 16 are fixed together, and the small flywheel 14 is connected with the second-stage small bevel gear 8 through the small flywheel gear 13.
In order to further optimize the technical scheme, two ends of the middle shaft transmission shaft 2 are respectively provided with a pedal 5, a bearing 4 is arranged at the joint of the pedal 5 and the middle shaft transmission shaft 2, and the bearing 4 is fixed on the box cover 12.
In order to further optimize the technical scheme, the small flywheel 14 is a one-way gear and is divided into an inner ring and an outer ring, when the pedal mode moves forwards, the outer ring and the inner ring rotate simultaneously, and when the electric forward mode moves forwards, the outer ring is not moved, and the rear drive motor drives the inner ring to rotate.
In order to further optimize the technical scheme, in the pedal forward mode, the pedal 5 drives the primary bevel gear 3 to rotate through the middle shaft transmission shaft 2 and drives the flywheel gear transmission shaft 9 to rotate through the gear transmission shaft 6; the small flywheel 14, the rear drive motor 15 and the rear wheel 16 are fixed together and are in transmission connection with the second-stage small bevel gear 8 through the small flywheel gear 13, so that the rear wheel 16 is driven to rotate; the pedal 5 and the flywheel tooth transmission shaft 9 are provided with bearings 4, so that the flexibility is greatly increased.
In order to further optimize the technical scheme, in the electric forward mode, the rear drive motor 15 rotates to drive the rear wheel 16 and the small flywheel 14 to rotate, the small flywheel 14 is a one-way flywheel, the rear drive motor 15 intelligently drives the inner ring of the small flywheel 14 to rotate, the outer ring of the small flywheel 14 does not move, then the transmission shaft cannot be driven to rotate, and the pedal 5 cannot rotate.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. The utility model provides an electric bicycle gear drive structure which characterized in that mainly includes: the automatic gearbox comprises a pedal (5), a box cover (12), a middle shaft transmission shaft (2), a gear transmission shaft (6), a fly gear transmission shaft (6), a box body (11), a flywheel, a rear drive motor (15) and a rear wheel (16); wherein, two ends of the box body (11) are respectively fixed at the centers of the vehicle body (1) and the rear wheel (16), and the box cover (12) is buckled with the box body (11); the middle shaft transmission shaft (2) is provided with a first-stage big bevel gear (3) through the front end of the vehicle body (1) and the box body (11), and is connected with a flywheel gear transmission shaft (9) through a gear transmission shaft (6), a first-stage small bevel gear (7) and a second-stage small bevel gear (8) are respectively arranged at two ends of the gear transmission shaft (6), and the first-stage small bevel gear (7) is in contact connection with the first-stage big bevel gear (3); one end of the flywheel gear transmission shaft (9) is fixed with the small flywheel gear (13) through a copper sleeve (10), and the other end is provided with a bearing (4); the small flywheel (14), the rear drive motor (15) and the rear wheel (16) are fixed together, and the small flywheel (14) is connected with the secondary small bevel gear (8) through the small flywheel gear (13).
2. An electric bicycle gear transmission structure as claimed in claim 1, wherein pedals (5) are respectively disposed at two ends of the middle shaft transmission shaft (2), a bearing (4) is disposed at a joint of the pedals (5) and the middle shaft transmission shaft (2), and the bearing (4) is fixed on the case cover (12).
3. An electrically assisted vehicle gear transmission structure according to claim 1, wherein the small flywheel (14) is a one-way gear, and is divided into an inner ring and an outer ring, the outer ring and the inner ring rotate simultaneously when the bicycle is in a pedal mode, and the outer ring is not moved and the rear drive motor drives the inner ring to rotate when the bicycle is in an electric forward mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921519458.2U CN210555419U (en) | 2019-09-12 | 2019-09-12 | Gear transmission structure of electric bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921519458.2U CN210555419U (en) | 2019-09-12 | 2019-09-12 | Gear transmission structure of electric bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210555419U true CN210555419U (en) | 2020-05-19 |
Family
ID=70671316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921519458.2U Expired - Fee Related CN210555419U (en) | 2019-09-12 | 2019-09-12 | Gear transmission structure of electric bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210555419U (en) |
-
2019
- 2019-09-12 CN CN201921519458.2U patent/CN210555419U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200519 Termination date: 20200912 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |