CN110979540A

CN110979540A - Double bicycle driving kinetic energy transmission middle shaft device

Info

Publication number: CN110979540A
Application number: CN201911254958.2A
Authority: CN
Inventors: 魏晓仪; 车勇军; 徐�明; 何燕; 周晓峰
Original assignee: Suzhou Birun Shuiyuan Environmental Protection Technology Co Ltd
Current assignee: Suzhou Birun Shuiyuan Environmental Protection Technology Co Ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-04-10

Abstract

The invention relates to a central shaft device for driving kinetic energy of a tandem bicycle. A crankset is connected, the other end is fixedly connected with at least one reverse flywheel, the five-way is located between the crankset and the reverse flywheel; a one-way bearing is connected between the central shaft and the rotatable shaft sleeve. The central axis device for driving kinetic energy of a tandem bicycle according to the present invention integrates a flywheel on the inner central axis device of the five-way, reduces the length of the rear wheel driving flywheel and the chain, makes riding more labor-saving, and the bicycle driving structure is more streamlined, Beautiful appearance; using one-way bearing, the cadence of the front and rear pedals can be different, and it does not follow the rotation when running alone.

Description

Double bicycle driving kinetic energy transmission middle shaft device

Technical Field

The invention relates to the field of tandem bicycles, in particular to a driving kinetic energy transmission center shaft device of a tandem bicycle.

Background

Most current amusement places, park and amusement park etc. all have tandem bicycle, current tandem bicycle, front and back chain wheel is independent separately, and the car has 2 sets of chains, 2 flywheels that directly are connected with rear wheel hub connection, and front and back chain wheel directly is connected with the corresponding flywheel of rear wheel through the chain respectively, and this kind of structure transmission chain is long, and rear wheel drive flywheel is too much, and is very pleasing to the eye and increase manufacturing cost, and the unnecessary resistance of drive chain in the air brought simultaneously can increase the physical demands of riding.

Disclosure of Invention

The purpose of the invention is: the double bicycle driving kinetic energy transmission center shaft device reduces the length of a rear wheel driving flywheel and a chain, so that the bicycle is more labor-saving to ride, the bicycle driving structure is simplified, and the appearance is attractive.

In order to achieve the above purpose, the present invention provides the following technical solutions:

a double bicycle driving kinetic energy transmission center shaft device comprises a center shaft, wherein a rotatable shaft sleeve is rotatably connected to the center shaft, and a five-way joint is rotatably connected to the rotatable shaft sleeve; one end of the rotatable shaft sleeve is fixedly connected with a toothed disc, the other end of the rotatable shaft sleeve is fixedly connected with at least one reverse flywheel, and the five-way valve is positioned between the toothed disc and the reverse flywheel; and a one-way bearing is connected between the middle shaft and the rotatable shaft sleeve.

Furthermore, a disk seat is fixedly connected in the chain wheel, and the chain wheel and the disk seat are sleeved on the middle shaft; the disk seat is in threaded connection with one end of the rotatable shaft sleeve.

Furthermore, end face thrust bearings are connected between one end of the rotatable shaft sleeve, which is far away from the disc seat, and the middle shaft, and between the disc seat and the middle shaft.

Furthermore, the number of the one-way bearings is two, the two one-way bearings are respectively located at two ends of the rotatable shaft sleeve, and the two one-way bearings are located between the two end face thrust bearings.

Furthermore, the two ends of the five-way valve are in threaded connection with end covers, and ball bearings are connected between the end covers and the rotatable shaft sleeve.

Further, the reverse flywheel is in threaded connection with the rotatable shaft sleeve.

Furthermore, the side of the central shaft, which is positioned on the chain wheel and is far away from the rotatable shaft sleeve, and the side of the reverse flywheel, which is far away from the rotatable shaft sleeve, are both connected with clamp springs.

The invention has the beneficial effects that: according to the driving kinetic energy transmission center shaft device of the tandem bicycle, the flywheel is integrated on the five-way inner center shaft device, the length of the rear wheel driving flywheel and the chain is reduced, the riding is more labor-saving, the bicycle driving structure is more simplified, and the appearance is attractive; the unidirectional bearing is adopted, the pedal frequency of the front pedal and the pedal frequency of the rear pedal are different, and the pedal can independently run without following rotation.

Drawings

FIG. 1 is an isometric view of a tandem bicycle drive kinetic energy transfer center shaft apparatus of the present invention;

FIG. 2 is a front view of the middle axle device for driving a tandem bicycle according to the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is an enlarged view of the portion B of FIG. 3;

FIG. 5 is a schematic view of the driving kinetic energy transferring middle axle device of a tandem bicycle according to the present invention in a use state;

in the figure: 1. a middle shaft; 2. a chain wheel; 21. a tray seat; 3. a rotatable shaft sleeve; 4. five-way connection; 5. a reverse flywheel; 6. a one-way bearing; 7. an end cap; 71. a ball bearing; 8. an end face thrust bearing; 9. a clamp spring; 10. a chain; 11. pedaling; 12. a rear wheel rotating shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 4, a tandem bicycle driving kinetic energy transmission center shaft device comprises a center shaft 1, wherein a rotatable shaft sleeve 3 is rotatably connected to the center shaft 1, and a five-way valve 4 is rotatably connected to the rotatable shaft sleeve 3; one end of the rotatable shaft sleeve 3 is fixedly connected with a chain wheel 2, the other end of the rotatable shaft sleeve is fixedly connected with a reverse flywheel 5, and a five-way valve 4 is positioned between the chain wheel 2 and the reverse flywheel 5; and a one-way bearing 6 is connected between the middle shaft 1 and the rotatable shaft sleeve 3.

The two ends of the middle shaft 1 are connected with middle pedals 11; the chain wheel 2 is used for inputting kinetic energy to a rear wheel rotating shaft 12 through a chain 10; the reverse flywheel 5 is used for receiving the driving kinetic energy transmitted by the front pedal; the rotatable shaft sleeve 3 is used for transmitting the driving kinetic energy of the reverse flywheel 5 and the middle shaft 1; the five-way valve 4 is used for supporting and protecting the rotatable shaft sleeve 3; the one-way bearing 6 is used for one-way transmission of kinetic energy, and avoids the follow-up rotation of the reverse flywheel 5 and the middle shaft 1, namely the front pedal and the rear pedal can be stepped on at different frequencies, and the single operation does not follow-up rotation.

The chain wheel 2 is internally and fixedly connected with a disc seat 21, and the chain wheel 2 and the disc seat 21 are sleeved on the middle shaft 1; the disk seat 21 is in threaded connection with one end of the rotatable shaft sleeve 3.

End face thrust bearings 8 are connected between one end, far away from the disc seat 21, of the rotatable shaft sleeve 3 and the middle shaft 1 and between the disc seat 21 and the middle shaft 1. The end face thrust bearing 8 is used for reducing friction between the rotatable shaft sleeve 3 and the middle shaft 1.

The one-way bearings 6 are specifically two, and are respectively located at two ends of the rotatable shaft sleeve 3 to be supported more stably, and the two one-way bearings 6 are located between the two end face thrust bearings 8.

The two ends of the five-way valve 4 are both in threaded connection with end covers 7, and ball bearings 71 are connected between the end covers 7 and the rotatable shaft sleeve 3. The end cap 7 is used for fixing the ball bearing 71, and the ball bearing 71 is used for reducing friction between the five-way valve 4 and the rotatable shaft sleeve 3.

The reverse flywheel 5 is in threaded connection with the rotatable shaft sleeve 3, and the reverse flywheel 5 is convenient to replace through threaded connection.

The middle shaft 1 is positioned on one side of the chain wheel 2 far away from the rotatable shaft sleeve 3 and one side of the reverse flywheel 5 far away from the rotatable shaft sleeve 3 are both connected with clamp springs 9.

The working principle is as follows: referring to fig. 5, a reverse flywheel 5 on the middle shaft device is connected with a chain wheel of the front pedal shaft through a chain 10, a chain wheel 2 on the middle shaft device is connected with a rear wheel rotating shaft 12 through a chain 10, and pedals 11 are connected with two ends of the middle shaft 1;

when the middle pedal 11 runs, the chain wheel 2 is driven to rotate by the middle shaft 1 through the one-way bearing 6 and the rotatable shaft sleeve 3, and is transmitted to the rear wheel rotating shaft 12 through the rear chain 10 to drive the rear wheel to rotate.

When the front pedal runs, the front chain 10 is transmitted to the reverse flywheel 5, the rotatable shaft sleeve 3 drives the chain wheel 2 to rotate, and the rear chain 10 is transmitted to the rear wheel rotating shaft 12 to drive the rear wheel to rotate.

When the front pedal and the middle pedal run simultaneously, the one-way bearing 6 can only transmit kinetic energy in one way, and the other direction is slightly resistant, so that the effect that the one direction does not follow the rotation is achieved, the reverse flywheel 5 and the middle shaft 1 are prevented from following the rotation, namely, the front pedal and the rear pedal can step at different frequencies and independently run without following the rotation, and the highest value of the selected power value is transmitted to the rear wheel rotating shaft 12 to drive the rear wheel to rotate.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The above examples are intended to further illustrate the present invention, but are not intended to limit the invention to these specific embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be understood to be within the protection scope of the present invention.

Claims

1. A tandem bicycle driving kinetic energy transmission central axis device, characterized in that: it comprises a central axis (1), a rotatable shaft sleeve (3) is rotatably connected on the central shaft (1), and a rotatable shaft sleeve (3) is rotatably connected on the central axis (1). A five-way (4) is rotatably connected; one end of the rotatable bushing (3) is fixedly connected with a crankset (2), and the other end is fixedly connected with at least one reverse flywheel (5). Between the disc (2) and the reverse flywheel (5); a one-way bearing (6) is connected between the central shaft (1) and the rotatable shaft sleeve (3).

2. A tandem bicycle driving kinetic energy transmission central axle device according to claim 1, characterized in that: the crankset (2) is fixedly connected with a disk seat (21), the crankset (2) and the disk seat ( 21) are sleeved on the central shaft (1); the disc seat (21) is threadedly connected with one end of the rotatable shaft sleeve (3).

3. A tandem bicycle driving kinetic energy transmission central axis device according to claim 2, characterized in that: the rotatable shaft sleeve (3) is away from one end of the disc seat (21) and the central axis (1) and the disc An end face thrust bearing (8) is connected between the seat (21) and the central shaft (1).

4. A tandem bicycle driving kinetic energy transmission center shaft device according to claim 3, characterized in that: the one-way bearing (6) specifically has two, which are respectively located at both ends of the rotatable shaft sleeve (3), The two one-way bearings (6) are located between the two end thrust bearings (8).

5. A tandem bicycle driving kinetic energy transmission central axle device according to claim 4, characterized in that: both ends of the bottom bracket (4) are threadedly connected with end caps (7), and the two end caps ( 7) A ball bearing (71) is connected with the rotatable shaft sleeve (3).

6 . The central shaft device for driving kinetic energy of a tandem bicycle according to claim 5 , wherein the reverse flywheel ( 5 ) is threadedly connected to the rotatable shaft sleeve ( 3 ). 7 .

7. A tandem bicycle driving kinetic energy transmission central shaft device according to claim 6, characterized in that: the central shaft (1) is located on the side of the crankset (2) away from the rotatable bushing (3) and on the opposite side A retaining spring (9) is connected to the side of the flywheel (5) away from the rotatable shaft sleeve (3).