阅读说明：本技术 非对称多用途驱动装置 (Asymmetric multipurpose driving device ) 是由 徐志跃 于 2020-04-24 设计创作，主要内容包括：本发明所述的非对称多用途驱动装置,采用简单结实的结构,依据不同的需求,安装不同的组件便可实现车辆的三种不同类型的驱动方式；在非对称多用途驱动装置上安装一个链齿轮可成为花式踩踏自行车；在非对称多用途驱动装置上安装两个U形槽轮可变身成为绳驱动往复踩踏自行车；而在非对称多用途驱动装置上安装两只踏脚曲柄即可成为一辆直接驱动自行车。(The asymmetric multipurpose driving device adopts a simple and firm structure, and three different types of driving modes of the vehicle can be realized by installing different components according to different requirements; a chain gear is arranged on the asymmetric multipurpose driving device to form a fancy pedaling bicycle; two U-shaped grooved wheels are arranged on the asymmetric multipurpose driving device and can be changed into a rope-driven reciprocating treading bicycle; two pedal cranks are arranged on the asymmetric multipurpose driving device to form a direct-drive bicycle.)

1. The asymmetric multipurpose driving device is characterized by comprising a bearing 1, a left transmission shaft 2, a left inner flywheel 3, a hub 4, a long shaft 5, a right inner flywheel 6, a left bevel gear 7, a middle bevel gear 8, a middle gear shaft 9, a middle bevel gear 10, a middle gear shaft 11, a right bevel gear 12 and a gear box shell 13.

2. The long shaft 5 of claim 1 rigidly connected with a right bevel gear 12; the long shaft 5 is connected with the left transmission shaft 2 by a spline shaft and a spline shaft sleeve.

3. The left bevel gear 7 according to claim 1 can realize constant speed reverse transmission through the middle bevel gear 8, the middle bevel gear 10, the right bevel gear 12, the long shaft 5 and the left transmission shaft 2.

4. The intermediate gear shafts 9, 11 according to claim 1 are each rigidly connected to a gearbox housing 13.

5. The left inner flywheel 3 and the right inner flywheel 6 as claimed in claim 1 are in threaded connection with a hub;

the left inner flywheel 3 and the right inner flywheel 6 adopt inner flywheel structures; the left inner flywheel 3 and the right inner flywheel 6 can also adopt an outer flywheel structure.

6. The asymmetric multi-purpose drive device according to claim 1, wherein the sprocket 14 is attached to the bevel gear shank of the left bevel gear 7 to form a tread-type drive device; the chain gear 14 is connected with the bevel gear handle of the left bevel gear 7 by a spline shaft and a spline shaft sleeve.

7. The asymmetric multipurpose drive device according to claim 1, wherein a left U-shaped sheave 15 is mounted on the left transmission shaft 2, and a right U-shaped sheave 16 is mounted on a bevel gear shank of the left bevel gear 7, so that a double U-shaped sheave rope drive device can be formed; the left U-shaped groove wheel 15 is connected with the left transmission shaft 2, and the right U-shaped groove wheel 16 is connected with the bevel gear handle of the left bevel gear 7 by spline shafts and spline shaft sleeves.

8. The asymmetric multipurpose drive device according to claim 1, wherein a direct drive device is formed by mounting a left pedal crank 17 on the left drive shaft 2 and a right pedal crank 18 on the bevel gear shaft of the left bevel gear 7; the left pedal crank 17 is connected with the left transmission shaft 2, and the right pedal crank 18 is connected with the bevel gear handle of the left bevel gear 7 by spline shafts and spline shaft sleeves.

9. The long shaft 5 of claim 1 is connected to the bearing 1 by spline shafts and spline sleeves.

10. The asymmetric multipurpose driving device as claimed in claim 1, wherein in the application of direct-drive bicycles and double U-shaped grooved pulley rope-drive bicycles, the partial teeth of the four bevel gears of the left bevel gear 3, the middle bevel gear 7, the middle bevel gear 8 and the right bevel gear 12 are closed, so that the purpose of limiting when the left bevel gear 3 and the right bevel gear 12 are driven to corresponding positions is achieved.

Technical Field

The invention relates to the field of mechanical transmission; in particular to a multipurpose driving device of a vehicle, which is used for power transmission of a bicycle or an electric moped.

Background

The manpower vehicles such as bicycles and the like generally adopt a transmission mode that a chain and a pedal do circular motion, and the transmission mode has the problems of chain transmission loss and acting force dead angles when the pedal does circular motion; secondly, the common bicycle has only one driving mode and single function; in order to overcome the defect of chain transmission, whether the pedal crank directly acts on the driving wheel to realize direct driving or not can be realized; or the pedal is driven by a rope to do reciprocating motion so as to overcome the dead angle problem of acting force of the pedal in circular motion; a very large number of people have performed countless compensation trials; however, it is very difficult to realize direct drive or rope drive, and the transmission device has an extremely complicated structure, high cost, or a simple structure and low performance, and has no ideal realization scheme so far.

Disclosure of Invention

The purpose of the invention is as follows:

the asymmetric multipurpose driving device adopts a simple and firm structure, and three different types of driving modes of the vehicle can be realized by installing different components according to different requirements; when a chain gear is installed, the fancy treading bicycle can be formed; two U-shaped grooved wheels are arranged and can be changed into a rope to drive the bicycle to be treaded in a reciprocating manner; and two pedal cranks are arranged to form a direct-drive bicycle.

The technical scheme is as follows:

as shown in fig. 1, the asymmetric multipurpose driving device is characterized by comprising a bearing 1, a left transmission shaft 2, a left inner flywheel 3, a hub 4, a long shaft 5, a right inner flywheel 6, a left bevel gear 7, a middle bevel gear 8, a middle gear shaft 9, a middle bevel gear 10, a middle gear shaft 11, a right bevel gear 12 and a gear box shell 13.

The long shaft 5 is rigidly connected with a right bevel gear 12; the long shaft 5 is connected with the left transmission shaft 2 by a spline shaft and a spline shaft sleeve.

The left bevel gear 7 can realize constant-speed reverse transmission through the middle bevel gear 8, the middle bevel gear 10, the right bevel gear 12, the long shaft 5 and the left transmission shaft 2.

The middle gear shaft 9 and the middle gear shaft 11 are respectively and rigidly connected with a gear box shell 13.

The left inner flywheel 3 and the right inner flywheel 6 are in threaded connection with the hub; the inner flywheel means that the outer ring of the flywheel is rigidly connected with the hub, and the inner ring of the flywheel can rotate; the outer flywheel means that the inner ring of the flywheel is rigidly connected with the hub, and the outer ring of the flywheel can rotate.

The left transmission shaft 2 is connected with the left inner flywheel 3 by a spline shaft and a spline shaft sleeve; the bevel gear handle of the left bevel gear 7 is connected with the right inner flywheel 6 by a spline shaft and a spline shaft sleeve.

When the inner ring of the left inner flywheel 3 rotates anticlockwise as seen from the left end, the ratchet wheel and the pawl inside the left inner flywheel 3 are meshed to drive the wheels to move forwards; when the inner ring of the left inner flywheel 3 rotates clockwise, the ratchet wheel and the pawl inside the inner flywheel do not engage with each other and rotate freely.

When the inner ring of the right inner flywheel 6 rotates clockwise as seen from the right end, the ratchet wheel and the pawl inside the right inner flywheel 6 are meshed to drive the wheels to move forwards; when the inner ring of the right inner flywheel 6 rotates anticlockwise, the ratchet wheel and the pawl inside the right inner flywheel can rotate freely without being engaged.

As shown in fig. 4, characterized by comprising a sprocket 14; the sprocket 14 is mounted on the bevel gear shank of the left bevel gear 7; the chain gear 14 is connected with the bevel gear handle of the left bevel gear 7 by a spline shaft and a spline shaft sleeve.

As shown in fig. 5, it is characterized by comprising a left U-shaped sheave 15, a right U-shaped sheave 16; the left U-shaped groove wheel 15 is arranged on the left transmission shaft 2; the right U-shaped grooved wheel 16 is arranged on the bevel gear handle of the left bevel gear 7; the left U-shaped groove wheel 15 is connected with the left transmission shaft 2 by a spline shaft and a spline shaft sleeve; the right U-shaped groove wheel 16 is connected with the bevel gear handle of the left bevel gear 7 by a spline shaft and a spline shaft sleeve.

As shown in fig. 6, it is characterized by comprising a left pedal crank 17, a right pedal crank 18; the left pedal crank 17 is arranged on the left transmission shaft 2; a right pedal crank 18 is arranged on the bevel gear handle of the left bevel gear 7; the left pedal crank 17 is connected with the left transmission shaft 2 by a spline shaft and a spline shaft sleeve; the right pedal crank 18 is connected with the bevel gear handle of the left bevel gear 7 by a spline shaft and a spline shaft sleeve.

The working principle is as follows:

an asymmetric multi-purpose drive as described in fig. 1;

when the bevel gear handle of the left bevel gear 7 rotates clockwise under external force, the ratchet wheel and the pawl inside the right inner flywheel 6 are meshed and drive the wheel to move forward;

meanwhile, the left bevel gear 7 enables the left transmission shaft 2 to reversely rotate through the middle bevel gear 8, the middle bevel gear 10, the right bevel gear 12 and the long shaft 5;

the left transmission shaft 2 drives the left inner flywheel 3 to rotate reversely, and at the moment, the ratchet wheel and the pawl inside the left inner flywheel 3 are in a non-meshing state and rotate freely.

When the bevel gear handle of the left bevel gear 7 rotates anticlockwise under external force, the bevel gear handle of the left bevel gear 7 drives the inner ring of the right inner flywheel 6 to rotate anticlockwise, and at the moment, the ratchet wheel pawl inside the right inner flywheel 6 is in a non-meshing state and rotates freely;

meanwhile, the left bevel gear 7 enables the left transmission shaft 2 to rotate reversely through the middle bevel gear 8, the middle bevel gear 10, the right bevel gear 12 and the long shaft 5, and the left transmission shaft 2 enables ratchet pawl teeth inside the left inner flywheel 3 to be combined to enable the wheel to move forwards.

Therefore, the bevel gear handle of the left bevel gear 7 can lead the vehicle to move forwards no matter the external force is applied clockwise or anticlockwise; if the driving device is adopted to replace a hub and a flywheel of a common bicycle, the bicycle can move forward no matter the pedal is stepped forward or backward, thereby changing into a fancy stepping bicycle.

As shown in fig. 6, a left pedal crank 17 and a right pedal crank 18 are respectively arranged on the bevel gear handles of the left transmission shaft 2 and the left bevel gear 7; when a left pedal is stepped on, the left transmission shaft 2 is driven, the left transmission shaft 2 drives the left inner flywheel 3 to rotate, and at the moment, the ratchet wheel and the pawl inside the left inner flywheel 3 are meshed to enable the wheel to move forwards.

Meanwhile, the left transmission shaft 2 enables the bevel gear handle of the left bevel gear 7 to rotate reversely through the long shaft 5, the right bevel gear 12, the middle bevel gear 8 and the middle bevel gear 10; the bevel gear handle of the left bevel gear 7 drives the right pedal crank to lift; meanwhile, the bevel gear handle of the left bevel gear 7 drives the right inner flywheel 6 to rotate, and at the moment, the ratchet wheel and the pawl inside the right inner flywheel 6 rotate freely without meshing.

Similarly, when the right pedal is stepped on, the ratchet and pawl inside the right inner flywheel 6 are engaged to drive the wheels to move forwards, and the left pedal crank is lifted; the stepping movement can make the vehicle continuously move forward, thus becoming a direct-drive bicycle.

As shown in fig. 5, a left U-shaped sheave 15 and a right U-shaped sheave 16 are respectively installed on the bevel gear handles of the left transmission shaft 2 and the left bevel gear 7, and a traction rope is installed on the two U-shaped sheaves; when one side haulage rope atress is tensile, can make the opposite side haulage rope shrink, drive the wheel simultaneously and move ahead, the reciprocal receipts of both sides haulage rope just can make the wheel continuously move ahead to become the reciprocal bicycle of trampling of rope drive.

Drawings

FIG. 1 is a cross-sectional view of an asymmetric utility drive.

Fig. 2 is an assembly view of the inner freewheel.

FIG. 3 is a diagram of an inner freewheel assembly.

Fig. 4 is a schematic view of a fancy tread drive.

Fig. 5 is a schematic view of a double U-sheave rope drive.

Fig. 6 is a schematic view of a direct drive apparatus.

Detailed Description

1. Fancy pedal bicycle

As shown in fig. 4, the sprocket 14 is mounted on the bevel shank of the left bevel gear 7; the device is used for replacing a hub and a flywheel of a common bicycle; the bicycle can be driven forward by pedaling either forwards or backwards, so that six different pedaling modes are provided, and the fancy pedaling bicycle is formed.

2. Rope-driven reciprocating treading bicycle

As shown in fig. 5, a left U-shaped sheave 15 and a right U-shaped sheave 16 are respectively installed on the bevel gear handles of the left transmission shaft 2 and the left bevel gear 7, and a traction rope is installed on the two U-shaped sheaves; when the traction rope on one side is stressed and stretched, the traction rope on the other side can be contracted, and meanwhile, the wheel is driven to move forwards; the two sides of the traction rope can be retracted and extended in a reciprocating way to enable the wheels to move forward continuously, so that the reciprocating bicycle driven by the rope is changed.

3. Direct drive bicycle

As shown in fig. 6, a left pedal crank 17 and a right pedal crank 18 are respectively arranged on the bevel gear handles of the left transmission shaft 2 and the left bevel gear 7; when the left pedal is stepped on, the left inner flywheel 3 drives the wheels to move forwards, and simultaneously, the right pedal crank is lifted; when the right pedal is stepped on, the right inner flywheel 6 drives the wheels to move forwards, and simultaneously, the left pedal crank is lifted; the reciprocating stepping motion can make the bicycle move forward, thus forming a direct-drive bicycle.