WO2018188602A1

WO2018188602A1 - Continuous transmission for bicycle

Info

Publication number: WO2018188602A1
Application number: PCT/CN2018/082596
Authority: WO
Inventors: 罗崑樟
Original assignee: 罗崑樟
Priority date: 2017-04-12
Filing date: 2018-04-11
Publication date: 2018-10-18

Abstract

A continuous transmission (1) for a bicycle. A rotary shaft (20) is fixedly disposed on a driving shaft (10), and a double-column helical gear (70) is pivotally disposed on one side of the driving shaft (10) close to the traverse direction of the rotary shaft (20). A first reciprocal helical gear (31) is disposed on one side of a braking shaft (30), and a braking device (50) is disposed on the other side of the braking shaft (30), so as to control the rotation speed of the braking shaft (30), thereby controlling the rotation speed of the first reciprocal helical gear (31). The first reciprocal helical gear (31) engages with a first surface helical gear (71) of the double-column helical gear (70), and a second reciprocal helical gear (22) and a third reciprocal helical gear (23) are respectively and pivotally connected to the two ends of the rotary shaft (20). The second reciprocal helical gear (22) and the third reciprocal helical gear (23) respectively engage with a second surface helical gear (72) of the double-column helical gear (70). A force output helical gear (80) is pivotally connected to the driving shaft (10), and respectively engages with the second reciprocal helical gear (22) and the third reciprocal helical gear (23). A sprocket (61) is fixedly disposed at the rear end of the force output helical gear (80). When the bicycle carries a person or a heavy object or is initially started or climbs up a slope, the friction of the braking device can be controlled, the bicycle can be driven forward by stepping a pedal by using a small force, so as to achieve the efficiency of labor-saving and continuous transmission.

Description

Bicycle continuous transmission

Technical field

The present invention relates to a bicycle continuous transmission, which is specifically directed to a bicycle continuous transmission that utilizes control of braking friction to achieve easy and labor-saving riding and continuous shifting.

Background technique

Traditional bicycles, whether or not they can automatically shift gears, when the knights step on the pedals, the tires are in static contact with the floor, and the friction is greater. The knight must use a lot of effort to drive the bicycle forward. Carrying people or heavy objects, the force of stepping on is more laborious. When encountering an uphill slope, due to the increase of gravity and resistance, the rider often has a heavy pedal when going uphill, and shifts the pedal while shifting. The chain causes the bicycle to be damaged and cannot continue to ride. In addition, the traditional bicycles drive the rear wheels with chains. Not only does the chain need to be maintained frequently, but also it is easy to fall off, causing sudden stoppage, which leads to the danger of chasing; how to overcome the above shortcomings is The technical problem to be solved by the inventors.

Summary of the invention

The main object of the present invention is to provide a bicycle continuous transmission, which utilizes the friction force of the brake device to control the speed of the first interactive helical gear to be slow or not, so that the first interactive helical gear drives the double-row helical gear to rotate. It is also relatively slow or does not move. Because the knight steps on the pedal, the drive shaft rotates, and the rotary shaft rotates. The second interactive helical gear and the third interactive helical gear respectively pivoted at both ends of the rotary shaft generate revolution and rotate, and interact with each other. The action is to drive the output helical gear to rotate with the meshing force. At this time, the speed of the output helical gear is the speed at which the second interactive helical gear and the third interactive helical gear rotate and rotate, so as to change the rear end of the output helical gear. The speed of the sprocket rotation is relatively fast; when the bicycle is loaded with people, heavy objects just start or ride on the slope, the knight can easily step on the pedal, easily drive the bicycle forward, save the power of pedaling, and enhance the climbing. Endurance, it is also possible to control the friction of the brake device according to the situation at the time of riding, to achieve the best benefit of continuous shifting.

Another main object of the present invention is to provide a bicycle continuous transmission that uses a driving device instead of a sprocket and a chain to drive the rear wheel forward; when the knight steps on the pedal to rotate the drive shaft, the fixed on the drive shaft The rotating shaft rotates relative to each other and controls the frictional force of the braking device. After the interaction, the second alternating helical gear and the third alternating helical gear drive the angular output of the output helical gear to be faster, and the output helical gear is driven to be fixed. The first output helical gear of the rear end reaches the same rotational speed. At this time, the rotating first output helical gear drives the first driving helical gear that meshes with the first driving helical gear, so that the second driving helical gear of the other end of the first driving helical gear is also followed. Rotating, the second driving helical gear drives the transmission helical gear with its meshing to drive the rear wheel to drive the bicycle forward, saving the cost of repairing the chain, and the chain does not fall off, thereby improving safety.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view (I) of a preferred embodiment of the present invention.

Figure 2 is an exploded perspective view (I) of a preferred embodiment of the present invention.

Figure 3 is a partially enlarged schematic view (I) of a preferred embodiment of the present invention.

Figure 4 is a partially enlarged schematic view (2) of a preferred embodiment of the present invention.

Figure 5 is a schematic view (2) of a preferred embodiment of the present invention.

Figure 6 is an exploded perspective view (2) of a preferred embodiment of the present invention.

Figure 7 is a partially enlarged schematic view (3) of a preferred embodiment of the present invention.

Figure 8 is a partially enlarged schematic view (4) of a preferred embodiment of the present invention.

Description of the reference numerals

1: bicycle continuous transmission

10: drive shaft

101: First fastening part

11: first shell

12: second outer casing

20: rotary axis

201: second fastening portion

22: Second interactive helical gear

23: The third interactive helical gear

30: brake shaft

31: First interactive helical gear

50: brake device

51: The first brake to make a piece

52: The second brake comes to the film

53: brake hub

530: set of holes

55: brake line

61: sprocket

62: drive unit

620: output shaft

621: first output shaft

622: second output shaft

623: socket

631: first drive helical gear

632: second drive helical gear

65: Transmission helical gear

66: drive hub

67: rear wheel

70: double row helical gear

71: first bevel gear

72: second bevel gear

80: output helical gear

81: First output helical gear

90: pedal

91: First pedal shaft

92: second pedal shaft

detailed description

1 to 4, the bicycle continuous transmission 1 of the present invention mainly includes a drive shaft 10, a rotary shaft 20, a brake shaft 30 and a brake device 50; the drive shaft 10 is provided with a first fastening portion 101, back The rotating shaft 20 is provided with a corresponding second fixing portion 201. The rotating shaft 20 is fixed on the driving shaft 10 and coupled to the driving shaft 10 by the engagement of the first fastening portion 101 and the second fastening portion 201. The vertical axis is disposed; and the side of the drive shaft 10 adjacent to the lateral direction of the rotary shaft 20 is sleeved with a double row helical gear 70 having a first bevel gear 71 and a second bevel gear 72. And one end of the same side of the double-row helical gear 70 is fixed to one end of the first pedal shaft 91; one end of the brake shaft 30 is fixed with a first cross-helical gear 31, and the other end of the brake shaft 30 The brake device 50 is further provided with a brake wire 55 and a brake hub 53 having a sleeve hole 530 at the center; the brake hub 53 of the brake device 50 is sleeved and fixed to the brake shaft 30 through the sleeve 530. One end of the helical gear 31 is disposed on each side of the brake hub 53 with a first brake to cause the sheet 51 The second brake is used to make the blade 52; the two ends of the brake wire 55 are respectively fixed on the first brake urging piece 51 and the second brake urging piece 52; by controlling the tension and relaxation of the brake wire 55, A brake causes the blade 51 and the second brake to cause the blade 52 to clamp the brake hub 53 inwardly or to relax the brake hub 53 outwardly, that is, by controlling the friction of the brake device 50 against the brake shaft 30, and controlling the speed at which the brake shaft 30 rotates, Further, the speed at which the first cross bevel gear 31 of the brake shaft 30 rotates is controlled. Therefore, the speed at which the first cross bevel gear 31 rotates is controlled by the brake device 50, and the first cross bevel gear 31 and the first row of the bevel gear 70 are first. The slanting gear 71 and the third slanting gear 23 are respectively respectively disposed at two ends of the rotary shaft 20 respectively. The second bevel gear 72 of the double-row helical gear 70 corresponds to the phase engagement; the bicycle continuous transmission 1 of the present invention further includes a power output helical gear 80 and a sprocket 61, and the output helical gear 80 is pivoted on the drive shaft 10 opposite to the double row One end of the helical gear 70 and adjacent to the lateral direction of the rotary shaft 20 On one side, the second cross bevel gear 22 and the third cross bevel gear 23 pivotally disposed on the rotary shaft 20 respectively engage with the output helical gear 80, and the sprocket 61 is sleeved on the drive shaft 10 opposite to the first pedal. One end of the shaft 91 and the output helical gear 80 are fixed to each other and located at the rear end thereof, that is, the sprocket 61 and the output helical gear 80 fixed to each other are pivotally disposed on the drive shaft 10; The end of the drive shaft 10 of the wheel 61 is fixed to one end of the second pedal shaft 92. The second pedal shaft 92 is opposite to the end of the drive shaft 10 with a pedal 90; when the bicycle is loaded with people, heavy objects, Just starting or riding uphill, because the bearing is too heavy, when the pedal 90 is pressed, the knight controls the friction of the brake device 50, and when the brake device 50 is released, the double row helical gear 70 is not subjected to the resistance of the brake device 50. When the knight steps on the pedal 90, the drive shaft 10 rotates, and the rotary shaft 20 fixed on the drive shaft 10 rotates relative to the second alternate helical gear 22 and the third interactive helical gear respectively pivoted at the longitudinal ends of the rotary shaft 20 23 generates revolution and rotates, and through interaction, drives the double with it The helical gear 70 rotates. At this time, the second bevel gear 72 and the first bevel gear 71 of the double-row helical gear 70 are thus rotated all the time, and the first bevel gear 71 rotates to make it correspond to the phase. The first interactive helical gear 31 will also rotate all the time; when the knight slowly pulls the brake wire 55 of the brake device 50, the first brake on both sides of the brake hub 53 will cause the blade 51 and the second brake to cause the blade 52 to When the brake hub 53 is clamped internally, when the speed at which the brake shaft 30 rotates is slow or does not move, the speed of the first interactive helical gear 31 can be relatively slow or not rotated, so that the first cross helical gear 31 drives the double-row oblique The speed at which the gear 70 rotates is slow or does not move. At this time, the second cross helical gear 22 and the third cross helical gear 23 respectively pivoted at the longitudinal ends of the rotary shaft 20 revolve and rotate, and interact with each other to drive the mesh. The speed of the output helical gear 80 is increased. At this time, the speed of the rotation of the second cross helical gear 22 and the third cross helical gear 23 is increased, and the speed of the relative output of the output helical gear 80 is relatively fast; therefore, the speed is driven at the highest speed. When the first brakes on both sides of the brake device 50 The blade 51 and the second brake cause the blade 52 to clamp the brake hub 53 inwardly, and the brake shaft 30 is completely clamped. The speed of the output helical gear 80 and the sprocket 61 at the rear end thereof is a second interactive oblique The gear 22 and the third cross bevel gear 23 revolve and rotate at a speed to change the speed of the sprocket fixed to the rear end of the output helical gear 80; the bicycle continuous transmission 1 further includes a first casing 11 and a second The outer casing 12, the first outer casing 11 and the second outer casing 12 are correspondingly assembled on the drive shaft 10, the rotary shaft 20, the brake shaft 30 and the brake device 50, and the periphery of each gear, so that the bicycle continuous transmission 1 is a whole Referring to FIG. 5 to FIG. 8, the present invention can provide a driving device 62 instead of the sprocket 61 and the chain driving rear wheel 67 to advance the bicycle without using the sprocket 61 and the chain; the driving device 62 includes the first output The helical gear 81, the transmission helical gear 65 and the transmission hub 66, the first output helical gear 81 and the output helical gear 80 are both pivoted on the drive shaft 10 and fixed to the output helical gear 80 at the rear end thereof; The drive device 62 further includes an output shaft 620. A first driving helical gear 631 and a second driving helical gear 632 are respectively fixed at two ends of the output shaft 620. The first driving helical gear 631 is correspondingly engaged with the first power output helical gear 81, and the second driving helical gear 632 and the transmission are respectively driven. The helical gear 65 is correspondingly engaged. The transmission helical gear 65 is fixed to one end of the transmission hub 66. The transmission hub 66 is fixed to the rear wheel 67 opposite to one end of the transmission helical gear 65. The output shaft 620 can be divided into a first output shaft. a rod 621 and a second output shaft 622; one end of the first output shaft 621 is fixed with a first driving helical gear 631; the first output shaft 621 is opposite to one end of the first driving helical gear 631 by a socket 623 sets the second output shaft 622; the second driving helical gear 632 is fixed to the second output shaft 622 opposite to the end of the socket 623, when the knight steps on the pedal 90, the drive shaft 10 is rotated, let The rotary shaft 20 fixed on the drive shaft 10 rotates relative to the second, and the second cross helical gear 22 and the third cross helical gear 23 respectively pivoted at the longitudinal ends of the rotary shaft 20 revolve and rotate, and interact with each other to drive The occlusal output helical gear 80 rotates quickly at this time, the brake The output helical gear 80 drives the first output helical gear 81 fixed at the rear end thereof to reach the same rotational speed, and the rapidly rotating first output helical gear 81 drives the first drive that is engaged with the same. The helical gear 631 rotates so that the second driving helical gear 632 at the other end of the first driving helical gear 631 also rotates relative to the second driving helical gear 632, and the second driving helical gear 632 drives the transmission helical gear 65 that is engaged with it to rotate, that is, the rear wheel can be driven. 67 Let the bicycle go straight forward.

Claims

A bicycle continuous transmission mainly comprising a drive shaft, a rotary shaft, a brake shaft and a brake device;

The rotary shaft is fixed on the drive shaft;

Wherein the side of the drive shaft and adjacent to the rotary shaft is sleeved with a double row helical gear, and the double row helical gear has a first helical gear and a second helical gear;

One end of the drive shaft and the same side of the double row helical gear is fixed to one end of the first pedal shaft;

Wherein, one end of the brake shaft is fixed with a first cross bevel gear, and the other end is provided with a brake device, and by controlling the friction force of the brake device on the brake shaft, the speed of the brake shaft is controlled to control the speed of the first cross bevel gear. ;

The first cross bevel gear and the first bevel gear of the double row helical gear are correspondingly engaged;

A second alternating helical gear and a third alternating helical gear are respectively disposed at two ends of the rotary shaft, and the second alternating helical gear and the third alternating helical gear respectively correspond to the second helical gear of the double-row helical gear Occlusal

Wherein, the bicycle continuous transmission further comprises a power output helical gear;

The output helical gear is pivoted at an end of the driving shaft opposite to the double-row helical gear, and is close to the other side of the rotary shaft, so that the second alternating helical gear and the third alternating helical gear pivoted on the rotary shaft respectively output the force The helical gears correspond to the phase engagement.
The bicycle continuous transmission according to claim 1, further comprising a sprocket disposed on an end of the drive shaft opposite to the first pedal shaft and fixed to the output helical gear And located at the rear end of the output helical gear;

The end of the drive shaft extending out of the sprocket is fixed to one end of the second pedal shaft.
The bicycle continuous transmission according to claim 1, further comprising a first output helical gear, a transmission helical gear, an output shaft and a transmission hub;

The first output helical gear is pivotally disposed on the driving shaft, and the first output helical gear and the output helical gear are fixed to each other and located at a rear end of the output helical gear;

a first driving helical gear and a second driving helical gear are respectively fixed at two ends of the output shaft;

Wherein, the first driving helical gear is correspondingly engaged with the first output helical gear, and the second driving helical gear is correspondingly engaged with the transmission helical gear;

The transmission helical gear is fixed at one end of the transmission hub, and the transmission hub is fixed to the rear wheel opposite to one end of the transmission helical gear;

When the knight steps on the pedal to rotate the drive shaft and controls the friction of the brake device, the output helical gear drives the first output helical gear fixed at the rear end thereof to reach the same rotational speed, and the rotating first output helical gear drives The first driving helical gear that is engaged with the rotation of the first driving helical gear rotates relative to the second driving helical gear at the other end of the first driving helical gear; the second driving helical gear drives the transmission helical gear that is engaged with the driving helical gear, thereby driving the rear wheel to The bicycle travels fast ahead.
The bicycle continuous transmission according to claim 3, wherein the frictional force of the brake device controls the speed at which the brake shaft of the brake device rotates to be slow or not, and the first interactive helical gear fixed at one end of the brake shaft is rotated. The speed of the double-row helical gear that is engaged with the first interactive helical gear is slowed or not moved, so that the second interactive helical gear pivoted at the longitudinal ends of the rotary shaft and the third interaction The helical gear generates a revolution and rotates. After the interaction, the output helical gear of the meshing force is fastened, and the output helical gear drives the first output helical gear fixed at the rear end to reach the same rotational speed to drive the rear wheel. The bicycle travels quickly and smoothly.
A bicycle continuous transmission mainly comprises a drive shaft, a rotary shaft, a brake shaft and a brake device; the rotary shaft is fixed on the drive shaft;

Wherein the side of the drive shaft and adjacent to the rotary shaft is sleeved with a double row helical gear, and the double row helical gear has a first helical gear and a second helical gear;

One end of the drive shaft and the same side of the double row helical gear is fixed to one end of the first pedal shaft;

Wherein, one end of the brake shaft is fixed with a first cross bevel gear, and the other end is provided with a brake device, and by controlling the friction force of the brake device on the brake shaft, the speed of the brake shaft is controlled to control the speed of the first cross bevel gear. ;

The first cross bevel gear and the first bevel gear of the double row helical gear are correspondingly engaged;

A second alternating helical gear and a third alternating helical gear are respectively disposed at two ends of the rotary shaft, and the second alternating helical gear and the third alternating helical gear respectively correspond to the second helical gear of the double-row helical gear Occlusal

Wherein, the bicycle continuous transmission further comprises a power output helical gear and a sprocket;

The output helical gear is pivoted at an end of the driving shaft opposite to the double-row helical gear, and is close to the other side of the rotary shaft, so that the second alternating helical gear and the third alternating helical gear pivoted on the rotary shaft respectively output the force The helical gear corresponds to the phase bite;

Wherein the sprocket is sleeved on one end of the drive shaft opposite to the first pedal shaft and fixed to the output helical gear and located at the rear end of the output helical gear;

The end of the drive shaft extending out of the sprocket is fixed to one end of the second pedal shaft;

By controlling the friction force of the brake device, the speed of the brake shaft is slowed down, and the speed of the first interactive helical gear is relatively slow, so that the speed of the first cross helical gear to drive the double-row helical gear is also slowed. The second interactive helical gear and the third interactive helical gear that are engaged by the second helical gear of the double-row helical gear rotate faster, and the speed of the output helical gear is also relatively faster, so as to change the fixed helical gear. The speed at which the sprocket at the rear end rotates.
The bicycle continuous transmission according to claim 1 or 5, wherein the second interactive helical gear and the third interactive helical gear are respectively pivotally disposed at both ends of the longitudinal direction of the rotary shaft.
The bicycle continuous transmission according to claim 1 or 5, wherein the double row helical gear that is sleeved on the drive shaft is disposed on a side close to the lateral direction of the rotary shaft.
The bicycle-continuous transmission according to claim 1 or 5, wherein the output helical gear that is pivotally disposed at one end of the drive shaft opposite to the double-row helical gear is disposed on the other side of the lateral direction of the rotary shaft.
The bicycle continuous transmission according to claim 1 or 5, wherein the rotary shaft fixed to the drive shaft is perpendicular to the drive shaft.