WO2018127737A1

WO2018127737A1 - Mechanism

Info

Publication number: WO2018127737A1
Application number: PCT/IB2017/050076
Authority: WO
Inventors: Shukhrat MUKHAMEDJANOV
Original assignee: Mukhamedjanov Shukhrat
Priority date: 2017-01-09
Filing date: 2017-01-09
Publication date: 2018-07-12

Abstract

The mechanism and method for merging rotations of different shafts to increase RPM wherein torque is preserved. The inventive device has input and output shafts that join through their male and female fittings at joining ends with bearings inside. The input shaft has a large input pulley or gear fixed to it to connect to motor or external power source. Both input and output shafts are housed in bearings to a frame. One perpendicular shaft is mounted on bearings to both ends to the fork shaped arms of the input shaft and goes through the hole with greater diameter in the input shaft to allow the perpendicular shaft to rotate freely around its own axis. A large bevel gear is fixed on one side of the perpendicular shaft and engages with same sized large bevel gear mounted at 90 degrees to it but fixed to a frame. A twice smaller bevel gear is fixed on the other side of the perpendicular shaft and meshes at 90 degrees with same sized small bevel gear fixed to the output shaft. When external force or motor drives the input gear, the perpendicular shaft moves at exact same speed and force as the large input gear. Simultaneously, the large bevel gear on the perpendicular shaft meshes with stationary large bevel gear at 90 degrees and rotates the perpendicular shaft around its own axis. While the perpendicular shaft rotates perpendicular to the input shaft axis at a rotational speed of the large input gear, it also rotates around its own axis at the same speed. These two different rotations merge through small bevel gear on the perpendicular shaft that inherits rotational speed of the input shaft and that of perpendicular shaft around its own axis and transmit double speed to the same diameter small gear on the output shaft. The output shaft and output gear fixed to it rotate twice as fast as the input shaft with preserved torque as large input and output gears are of the same diameter.

Description

Mechanism and method for merging rotations of different shafts to increase RPM wherein torque is preserved.

The present invention relates to the mechanism that gives acceleration of rotational motion and more specifically to the device that merges two different shafts rotations in order to increase RPM wherein torque doesn’t decrease.

The present invention allows multiple increases of RPM while torque stays unchanged with the exception of minor loss of force due to friction of bearings and gears.

As an analogy, the work of the present invention can be compared with pole vault. In ordinary high jump one can reach a maximum of 2.5 meters. However, in pole vault one may reach more than 5 meters. In this case muscles of both arms and legs are involved as well as pole power.

In the conventional method a gear ratio can increase the output torque or output speed of a mechanism, but at the expense of the other. The conventional principle of gear ratio is to transmit input force through the rim of gears or gear train and it is the basic method for transmission systems. For example, sprockets on a bicycle. Using low gear allows one to pedal easily uphill, but with a lower bicycle speed. Conversely, a high gear provides a higher bicycle speed, but more torque is required to turn the pedal. Similar effect occurs in vehicle transmissions where gears are used. With the conventional method of gear ratio it is impossible to preserve Mechanical Advantage due to the fact that in a conventional method speed is drawn from the rim of a large input gear with many teeth driving the output smaller gear with fewer teeth, a tradeoff between speed and torque occurs.

A force applied at a right angle to a lever multiplied by its distance from the lever’s fulcrum is its torque. So by the conventional method the difference in radius that defines moment arm and teeth number decrease as speed increases. Hence the conventional transmission systems trade off speed for torque or vice versa and consume more power or fuel to accelerate and lose torque or gain torque and lose speed.

The present invention consists of two frame bodies, three rotating shafts – input, perpendicular and output shafts, with gears fixed to them. One stationary gear is fixed to a frame. All other gears rotate with their shafts. The large gear on the input shaft has same diameter as the gear on one side of the perpendicular shaft and one stationary gear fixed to a frame. The small gear on the other side of the perpendicular shaft engages with same radius small gear fixed to the output shaft. The small gears are twice as small as large gears. The large input gear on the input shaft can also be a pulley or sprocket and is connected to the motor. When connected to the motor, all three shafts rotate. The output shaft will rotate twice as fast as other shafts wherein torque of the mechanism will not change. This is the advantageous effect of the mechanism. When the mechanism is continued as a “train”, the RPM will increase in geometric progression: 1; 2; 4; 8; 16; 32; 64; 128; 256 …

The present invention can be used in transmission systems of practically any transport vehicle or device. For instance, power stations of any type to achieve better efficiency in driving generators, in light and heavy transportation vehicles, trucks, marine and submarine boats, cruise liners, heavy cargo ships, trains, helicopters, aircrafts and etc. It can also be used in any pedal powered device to help boost speed so that person pedaling the device doesn’t exhaust his/her energy.

There are numerous gear devices. For example, U.S. Pat. No. 2,783,657 to Kohlhagen Walter; U.S. Pat. No. 106,360 to B. Hamlin; U.S. Pat. No. 1,067,144 to Charles R. Schilling; U.S. Pat. No. 4,550,629 to Mutsumi Kawamoto; U.S. Pat. No. 2,513,217 to Thomas F.I. Tomlines; U.S. Pat. No. 3,812,739 to Yoichi Mori; U.S. Pat. No. 4,395,925 to Hermann Gaus.

Kohlhagen Walter (U.S. Pat. No. 2,783,657) discloses constant torque drive that is constant in magnitude despite intermittent power input in the drive.

Mutsumi Kawamoto (U.S. Pat. No. 4,550,629) discloses a continuously variable speed transmission for motor vehicles.

While conventional transmission systems and gear trains may be suitable for the particular purpose to which they address, they are not suitable to increase RPM of shafts with torque preserved.

None of the prior art discloses an invention which can provide acceleration of rotational motion through merging rotations.

In these respects, the present invention departs from the conventional concepts and devices of prior art and in so doing, provide a mechanism primarily developed to increase RPM wherein torque is preserved.

The invention pertains to mechanism and method for merging rotations of different shafts to increase RPM wherein torque is preserved and comprises a large input gear/wheel fixed to input shaft. The input shaft mounted on bearings and housed to a frame. There are two fork shaped arms of the input shaft on both sides. The purpose of the arms is to hold perpendicular shaft that is mounted on bearings in both ends. The fork shaped arms of the input shaft rotate the perpendicular shaft together with the input shaft. The perpendicular shaft has two different sized bevel gears with 1:2 ratio fixed to either side. A large bevel gear on the perpendicular shaft meshes with the same sized bevel gear at 90 degrees that in turn is fixed to a frame and is stationary. The perpendicular shaft goes through the hole with larger diameter in the input shaft so that the perpendicular shaft can freely rotate around its own axis. Smaller sized bevel gear fixed to the other side of the perpendicular shaft also meshes at 90 degrees with the same sized bevel gear that is fixed to the right end of the output shaft. The output shaft also housed on bearings fixed to a frame. It should be noted that the left end of the input shaft that meets the right end of output shaft has a male fitting that fits into the female fitting of the output shaft with bearings inside to allow the two shafts to rotate independently at different speeds.

To the accomplishment of the above details, this invention may be embodied in the form illustrated in the accompanying drawings, attention being called to the fact, however, that the drawings are illustrative only, and that changes may be made in the specific construction illustrated and described within the scope of the appended claims.

Fig.1

is a top plan view of the present invention.

Fig.2

is a cross section of the top plan view of the present invention.

Fig.3

is a side view of bevel gears.

Fig.4

is a “train” view of the present invention.

Turning now descriptively to the drawings, in which similar reference characters denote similar elements throughout the several views, FIG.1 through 4 illustrate the mechanism and method for merging rotations of different shafts to increase RPM wherein torque is preserved comprises a large input gear/pulley 2 fixed to the input shaft 6 that sits on bearings 26 as shown in FIG.2. The left end of the input shaft 6 has male fitting 28 that fits into female fitting 30 in the right end of the output shaft 22. It is also used as a support point for the input shaft 6. The input shaft 6 has two fork-shaped arms 8 to hold perpendicular shaft 10 that is mounted on bearings at both ends. The perpendicular shaft 10 goes through a larger diameter hole in the input shaft 6 to allow the perpendicular shaft 10 to rotate around its axis. A large bevel gear 12 is fixed to one end of the perpendicular shaft 10 and smaller bevel gear 18 is fixed to the other side of the perpendicular shaft 10. The ratio of the bevel gears 12 and 18 is 1:2. In order to balance the perpendicular shaft, a load 20 is fixed onto the perpendicular shaft 10 next to smaller gear 18. Perfect balancing is essential for smooth operation.

As shown in FIG. 1 small bevel gear 18 meshes with the same sized bevel gear 16 fixed to the output shaft 22. Large bevel gear 14 is of the same radius as bevel gear 12. Large bevel gear 14 is fixed to a frame 4 and is the only stationary gear.

Upon rotation of the input gear 2, the perpendicular shaft 10 rotates perpendicular to the input shaft axis at the same speed as input gear 2 and as one single unit. However, as the perpendicular shaft pushes to the center of the large gear 12, it starts to rotate around its own axis thanks to a large stationary bevel gear 14. As a result, two perpendicular motions merge and transmit rotation further to small bevel gear 18 which pushes same radius bevel gear 16 fixed to the output shaft 22 and transmits rotary motion at twice the speed than the input shaft 6.

As shown in FIG.1, 2 and 4, force F and radius r in the present invention are constant at each stage:

F x r = constant

FIG.3 shows one rotation of the input shaft 6 while the output shaft 22 makes 2 full rotations. When one more large gear 24 is fixed to the output shaft 22, the torque of the large gear 24 will be equal to the torque of the input gear 2 as they have same radius. However, the large gear 24 will rotate at twice the speed than the input gear 2. When the mechanism repeats itself in a train mode as shown in FIG.4, the RPM will increase in geometric progression.

Claims

Mechanism and method for merging rotations of different shafts to increase RPM wherein torque is preserved: an input shaft with two fork shaped arms; a perpendicular shaft; an output shaft; 4 large gears of the same diameter; 2 small bevel gears of the same diameter; a load fixed to said perpendicular shaft; a frame consisting of several detachable parts;
The device of claim 1, further comprising: one of said 4 large gears is fixed to said input shaft and serves as large input gear or pulley, the second of said 4 large gears is bevel gear fixed to one end of said perpendicular shaft at 90 degrees to the third of said 4 large gears being also bevel gear fixed to a frame bar and is stationary wherein the fourth gear is output gear.
The device of claim 1, further comprising: one of said 2 small bevel gears is fixed to the other end of said perpendicular shaft whereas the other of said 2 small gears is fixed to said output shaft. Both small bevel gears engage at 90 degrees.
The device of claim 1, further comprising: a perpendicular shaft that goes through a larger diameter hole in said input shaft and sits on bearings on both ends housed on said fork shaped arms of said input shaft.
The device of claim 4, wherein the left end of said input shaft having male fitting that joins the right end of said output shaft having female fitting with bearings inside.
The device of claim 1, further comprising: the method wherein rotations of two perpendicular to each other shafts merge and create faster rotation.