阅读说明：本技术 一种单侧变速轴驱动装置 (Unilateral variable speed shaft drive arrangement ) 是由 张权伟 张德宝 李建培 于 2021-07-05 设计创作，主要内容包括：本发明公开了一种单侧变速轴驱动装置,涉及自行车技术领域,包括轴体,所述轴体上设置有行星齿轮机构,所述行星齿轮机构的一侧设置有车架安装座,另一侧设置有车轮安装座；所述行星齿轮机构包括固定在车架安装座上的齿圈和设置在轴体上的第一固定架,所述第一固定架的一侧设置有第二固定架,且第一固定架和第二固定架之间转动设置有多个行星齿轮,多个所述行星齿轮啮合设置在齿圈内,且多个所述行星齿轮之间啮合连接有太阳轮。本发明通过设置的行星齿轮机构能够利用行星齿轮、齿圈和太阳轮的配合提高车轮的转速,达到变速省力的目的,本设计能够提高驱动装置的扭矩力,使得驱动装置传动更加稳定,故障率低,使用寿命长,安全性高。(The invention discloses a unilateral variable speed shaft driving device, which relates to the technical field of bicycles and comprises a shaft body, wherein a planetary gear mechanism is arranged on the shaft body, a frame mounting seat is arranged on one side of the planetary gear mechanism, and a wheel mounting seat is arranged on the other side of the planetary gear mechanism; the planetary gear mechanism comprises a gear ring fixed on a frame mounting seat and a first fixing frame arranged on a shaft body, wherein a second fixing frame is arranged on one side of the first fixing frame, a plurality of planetary gears are arranged between the first fixing frame and the second fixing frame in a rotating mode, the planetary gears are meshed in the gear ring, and the planetary gears are meshed with one another to form a plurality of sun gears. The planetary gear mechanism can improve the rotating speed of the wheel by utilizing the matching of the planetary gear, the gear ring and the sun gear, so as to achieve the aim of speed change and labor saving.)

1. A unilateral variable speed shaft drive device, includes axis body (1), its characterized in that: a planetary gear mechanism (2) is arranged on the shaft body (1), a frame mounting seat (3) is arranged on one side of the planetary gear mechanism (2), and a wheel mounting seat (4) is arranged on the other side of the planetary gear mechanism;

planetary gear mechanism (2) are including fixing ring gear (21) on frame mount pad (3) and setting first mount (22) on axis body (1), one side of first mount (22) is provided with second mount (23), and rotates between first mount (22) and second mount (23) and be provided with a plurality of planetary gear (24), and is a plurality of planetary gear (24) meshing sets up in ring gear (21), and is a plurality of the meshing is connected with sun gear (25) between planetary gear (24).

2. The single-sided variable-speed shaft drive device according to claim 1, characterized in that: one side of the sun wheel (25) is provided with a cylinder (26), and the cylinder (26) is matched with the wheel mounting seat (4).

3. The single-sided variable-speed shaft drive device according to claim 2, characterized in that: the cylinder (26) is provided with a fixed key (261).

4. The single-sided variable-speed shaft drive device according to claim 3, characterized in that: and a key groove matched with the fixed key (261) is formed in the wheel mounting seat (4).

5. The single-sided variable-speed shaft drive device according to claim 1, characterized in that: the wheel mounting seat (4) comprises a first sleeve (41), and a second sleeve (42) is arranged on one side of the first sleeve (41).

6. The single-sided variable-speed shaft drive device according to claim 5, characterized in that: the first sleeve (41) is provided with a plurality of fixing pieces (5) distributed in a circular array.

7. The single-sided variable-speed shaft drive device according to claim 6, characterized in that: the fixing piece (5) is a bolt.

8. The single-sided variable-speed shaft drive device according to claim 6, characterized in that: the first sleeve (41) is provided with a through hole matched with the fixing piece (5).

9. The single-sided variable-speed shaft drive device according to claim 1, characterized in that: and external threads are arranged at two ends of the shaft body (1).

10. The single-sided variable-speed shaft drive device according to claim 1, characterized in that: the first fixing frame (22) is rotatably connected with the shaft body (1) through a bearing.

Technical Field

The invention relates to the technical field of bicycles, in particular to a unilateral speed change shaft driving device.

Background

The bicycle, also known as a bicycle or a bicycle, is a two-wheeled small land vehicle, and is a green and environment-friendly vehicle with the pedal stepping power after people ride the bicycle, and is popular with the public. The traditional bicycle is generally driven backwards in a chain mode, the transmission structure is complex, and the space occupancy rate is large, so that the front-drive bicycle is gradually developed.

However, the front-wheel drive bicycle driving device on the market at present generally adopts a transmission shaft to directly realize front-wheel drive, has low transmission torque, can only realize acceleration of wheels through acceleration of pedals, is labor-consuming, has unstable transmission, has certain potential safety hazard, and has high failure rate. Accordingly, one skilled in the art has provided a one-sided shift shaft driving apparatus to solve the problems set forth in the background art described above.

Disclosure of Invention

The present invention is directed to a one-sided transmission shaft driving device to solve the above-mentioned problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: a unilateral variable speed shaft driving device comprises a shaft body, wherein a planetary gear mechanism is arranged on the shaft body, a frame mounting seat is arranged on one side of the planetary gear mechanism, and a wheel mounting seat is arranged on the other side of the planetary gear mechanism; the planetary gear mechanism comprises a gear ring fixed on a frame mounting seat and a first fixing frame arranged on a shaft body, wherein a second fixing frame is arranged on one side of the first fixing frame, a plurality of planetary gears are arranged between the first fixing frame and the second fixing frame in a rotating mode, the planetary gears are meshed in the gear ring, and the planetary gears are meshed with one another to form a plurality of sun gears.

As a further description of the above technical solution: and a cylinder is arranged on one side of the sun wheel and is matched with the wheel mounting seat.

As a further description of the above technical solution: the cylinder is provided with a fixed key.

As a further description of the above technical solution: and the wheel mounting seat is provided with a key groove matched with the fixed key.

As a further description of the above technical solution: the wheel mount pad includes first sleeve, one side of first sleeve is provided with the second sleeve.

As a further description of the above technical solution: a plurality of fixing pieces distributed in a circular array are arranged on the first sleeve.

As a further description of the above technical solution: the fixing piece is a bolt.

As a further description of the above technical solution: and the first sleeve is provided with a through hole matched with the fixing piece.

As a further description of the above technical solution: and external threads are arranged at two ends of the shaft body.

As a further description of the above technical solution: the first fixing frame is rotatably connected with the shaft body through a bearing.

Compared with the prior art, the invention has the beneficial effects that: the invention provides a single-side variable-speed shaft driving device, which can improve the rotating speed of a sun gear by utilizing the matching of a planetary gear and a gear ring through an arranged planetary gear mechanism, so that the rotating speed of the sun gear is greater than the rotating speeds of a first fixing frame and a second fixing frame, the rotating speed of wheels is improved, and the purpose of speed change and labor saving is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic structural view of a single-sided variable speed shaft drive;

FIG. 2 is a right side view of a single-sided variable speed shaft drive;

FIG. 3 is an exploded view of a single-sided shift shaft drive;

FIG. 4 is a cross-sectional view of a single-sided shift shaft drive;

FIG. 5 is a schematic view of the mounting structure of the planetary gear mechanism and the frame mounting seat in a single-sided transmission shaft driving apparatus;

FIG. 6 is a schematic view showing an installation structure of a planetary gear and a ring gear in a single-side shift shaft driving apparatus;

FIG. 7 is a schematic view of a sun gear and wheel mounting base mounting structure of a single-sided derailleur drive;

FIG. 8 is a schematic view showing an installation structure of a sun gear and a planetary gear in a single-side variable-speed shaft driving apparatus;

fig. 9 is a reference view showing a use state of a one-side shift shaft drive device.

Description of reference numerals:

1. a shaft body; 2. a planetary gear mechanism; 21. a ring gear; 22. a first fixing frame; 23. a second fixing frame; 24. a planetary gear; 25. a sun gear; 26. a cylinder; 261. a fixed key; 3. a frame mounting seat; 4. a wheel mount; 41. a first sleeve; 42. a second sleeve; 5. a fixing member; 6. a frame; 7. Pedaling; 8. a wheel frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 9, an embodiment of the present invention provides a technical solution: a unilateral variable speed shaft driving device comprises a shaft body 1, wherein a planetary gear mechanism 2 is arranged on the shaft body 1 and used for realizing the variable speed of a bicycle, a frame mounting seat 3 is arranged on one side of the planetary gear mechanism 2, a wheel mounting seat 4 is arranged on the other side of the planetary gear mechanism, and the frame mounting seat 3 and the wheel mounting seat 4 are both sleeved on the shaft body 1; the planetary gear mechanism 2 comprises a gear ring 21 fixed on the frame mounting seat 3 and a first fixing frame 22 arranged on the shaft body 1, the gear ring 21 is fixedly connected with the frame mounting seat 3, the first fixing frame 22 is rotatably connected with the shaft body 1 through a bearing, one side of the first fixing frame 22 is provided with a second fixing frame 23, a plurality of planetary gears 24 are rotatably arranged between the first fixing frame 22 and the second fixing frame 23, the plurality of planetary gears 24 are meshed with each other and arranged in the gear ring 21, a sun gear 25 is meshed with the plurality of planetary gears 24, the rotating speed of the sun gear 25 can be increased through the matching of the planetary gears 24 and the gear ring 21 by the arranged planetary gear mechanism 2, so that the rotating speed of the sun gear 25 is larger than the rotating speeds of the first fixing frame 22 and the second fixing frame 23, the rotating speed of wheels is increased, the purpose of speed change and labor saving is achieved, and the torque force of the driving device can be increased by the design, the transmission of the driving device is more stable, the failure rate is low, the service life is long, the safety is high, and the problems that the transmission torque of the driving device of the front-wheel-drive bicycle is low, the acceleration of the wheel is hard, the transmission is unstable, certain potential safety hazards exist, and the failure rate is high in the prior art are solved.

Specifically, rotation through axis body 1 drives first mount 22 and rotates, and then drives second mount 23 and rotate, make planetary gear 24 on the second mount 23 rotate along ring gear 21, and reverse rotation, thereby drive sun gear 25 and rotate, make sun gear 25's direction of rotation the same with axis body 1's direction of rotation, and simultaneously, wheel mount pad 4 rotates along with sun gear 25, it advances to drive the bicycle front wheel, and sun gear 25's slew velocity is greater than the slew velocity of first mount 22 and second mount 23, thereby reach the laborsaving purpose of variable speed.

In another embodiment of the present invention, a cylinder 26 is disposed on one side of the sun gear 25, the cylinder 26 is adapted to the wheel mounting seat 4, and the sun gear 25 is mounted on the wheel mounting seat 4 through the cylinder 26, so as to facilitate mounting and dismounting of the sun gear 25.

In another embodiment of the present invention, a fixing key 261 is disposed on the cylinder 26, a key slot adapted to the fixing key 261 is disposed on the wheel mounting seat 4, and the cylinder 26 and the wheel mounting seat 4 can be fastened and fixed by the fixing key 261 and the key slot, so as to facilitate fixing of the sun gear 25.

In yet another embodiment of the present invention, the wheel mounting seat 4 comprises a first sleeve 41, a second sleeve 42 is disposed on one side of the first sleeve 41, the cylinder 26 is mounted in the first sleeve 41, and the wheel frame 8 is mounted outside the second sleeve 42.

In another embodiment of the present invention, the first sleeve 41 is provided with a plurality of fixing members 5 distributed in a circular array, the fixing members 5 are bolts, the first sleeve 41 is provided with through holes adapted to the fixing members 5, and the fixing members 5 are arranged to facilitate the fixing of the wheel frame 8, thereby facilitating the installation of the wheel and facilitating the installation and removal of the wheel.

In another embodiment provided by the invention, the two ends of the shaft body 1 are provided with external threads, the installation of the pedals 7 is facilitated through the arranged external threads, and the pedals 7 are fixed with the shaft body 1 through the threads, so that the pedals 7 can be installed and replaced quickly.

The working principle of the invention is as follows: in the practical use process, the frame 6 is mounted on the frame mounting seat 3, the wheel frame 8 is fixed on the wheel mounting seat 4 through the fixing piece 5, the front wheel is sleeved on the wheel frame 8, the pedals 7 are connected to two ends of the shaft body 1, the shaft body 1 is driven to rotate through the rotation of the pedals 7, and then the first fixing frame 22 on the shaft body is driven to rotate, the second fixing frame 23 rotates along with the first fixing frame 22, so that the planetary gear 24 between the first fixing frame 22 and the second fixing frame 23 rotates along the track of the gear ring 21 and performs reverse rotation, and then the sun gear 25 is driven to rotate, so that the rotation direction of the sun gear 25 is the same as the rotation direction of the shaft body 1, meanwhile, the wheel mounting seat 4 rotates along with the sun gear 25 to drive the bicycle wheel on the wheel mounting seat to advance, and the rotation speed of the sun gear 25 is increased through the matching of the planetary gear 24 and the gear ring 21 by the arranged planetary gear mechanism 2, make the rotational speed of sun gear 25 be greater than the rotational speed of first mount 22 and second mount 23 to improve the rotational speed of wheel, reach the laborsaving purpose of variable speed, realize the forerunner of bicycle and rotate, this design can improve drive arrangement's moment of torsion power, make drive arrangement transmission more stable, the fault rate is low, long service life, and the security is high.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.