NL1019824C1 - Rotary drive device, used for generating electricity from wave power, comprises pair of reels with drive cords and gear wheels - Google Patents

Abstract

The device (1) is used to rotate a drive shaft and comprises a first reel with a drive cord and gear-wheel, a second reel with a drive cord and gear-wheel, a first free-wheel gear-wheel located in between the two gear wheels for the reels and capable of engaging with both of these wheels in a first position, a second free-wheel gear-wheel located between the two gear wheels for the reels and capable of engaging with both of these wheels in a second position, and a drive shaft connected to the free-wheel gear-wheels. The free-wheels for the two free-wheel gear-wheels ensure that the drive shaft is rotated in a given direction and the second drive cord wound up around the second reel as the first drive cord is unwound from the first reel, and that the drive shaft is rotated in the same direction as the second drive cord and the first drive cord is wound-up during unwind of the second drive cord. Independent claims are also included for the following: (1) Electricity generating device based on wave power; (2) Energy generating method.

Description

DRIVE FOR DRIVING A DRIVE SHAFT

The present invention relates to I

a drive and method for driving an I

drive shaft. The invention also relates to a

device for recovering with the rotatable drive shaft H

5 of electrical energy from waves of water. H

Apparatus for manually rotating H

a drive shaft are widely known. There are devices I

known for rotating in a certain direction I

of the drive shaft wherein, in a pulling or pushing movement, the I

10 driving stroke, a driving force on the drive shaft becomes I

transferred while in an opposite motion, H

the empty lift stroke, no driving force on the shaft becomes I

exerted. H

The known devices have the drawback that H

15 no force on H for at least half the time

the drive shaft is exercised, leaving little H

power can be transferred to the drive shaft. Upper H

a lot of energy goes on during the empty collection stroke H

lost. H

It is an object of the present invention H

to overcome these objections. H

This goal is achieved according to a first aspect of the H

The present invention achieved in a drive for H

driving a rotatable drive shaft, comprising: H

A first reel H provided with a gear wheel

means on which a first drive cord can be rolled and unrolled H

as well as a second reel rotor H provided with a gear wheel

on which a second drive cord can be rolled and unrolled; H

- a first freewheel gear that is between the H

30 first and second gear is arranged to be on an H

first position on both gears; H

- a second free-running gear arranged between the first and second gear to engage both gear wheels in a second position; - a drive shaft attached to the freewheel gears and driven therewith; Wherein the freewheel of the first and the freewheel of the second freewheel gear are adapted to simultaneously rotate the first drive cord by I to rotate the drive shaft in a determined direction of rotation and roll up the second drive cord and roll it off by I rotating the second drive cord simultaneously rotate the drive shaft in the same direction of rotation and roll up the first drive cord. Due to the drive according to the invention, an empty collection stroke can be omitted and the drive shaft is driven without significant interruption.

According to a preferred embodiment, the freewheel of the first freewheel gear is set for driving the drive shaft when unrolling the first reel member and releasing the drive shaft when unrolling the second reel member, while the freewheel of the second freewheel gear is arranged for releasing the drive shaft I when unrolling the first reel member and driving the drive member when unrolling the second reel member.

According to a further preferred embodiment, the engagement position of the first and second gear wheel on the first freewheel gear is substantially opposite the engagement position of the first and second gear wheel on the second freewheel gear.

According to a further preferred embodiment, the gears of the first and second reel members I are arranged substantially parallel to the drive shaft, substantially perpendicular to which the freewheel gears are arranged.

According to a further preferred embodiment, the drive shaft is connected to a generator for generating electricity as a result of rotation of the drive shaft.

tricity. With the electricity thus generated, an I

lamp or the like. This means that the I

lamp, without batteries and with minimal effort I

of the user can shine at any time. This I

5 is not only financially beneficial, but it also offers I

also a guarantee that light can always be present and

that no longer depends on the lifetime of I

any batteries. Moreover, it is less stressful H

for the environment. I

In another preferred embodiment, the H

drive shaft connected to a propulsion screw for H

propelling the drive. The user can now I

simply by arm movements themselves through the water I

propulsion, making optimum use of H

15 the limited available body power and body energy. I

This embodiment is particularly suitable for users H

who are unable or unwilling to use their legs. H

Another aspect of the present invention H

relates to a device for extracting electric H

Energy from wave wave of water, comprising: H

- at least one drive according to at least H

one of the preceding claims; H

a frame to be arranged in the water on which H

the drive can rest; H

- a H pivotable with respect to the frame

fitted arm; H

- at least one floating H arranged on the arm

body; H

the first drive cord on a first side at H

30 relative to the pivot point and the second drive H

cord on a second side relative to the link H

kidney point are attached to the arm for converting H

the wave in a rotational movement of the rotatable H

drive shaft; H

35 - means for converting into electrical energy H

converting the rotational energy of the drive shaft. H

In the manner described above, the in H

wave impact or swell of water stored energy H

I 4 I can be extracted, whereby no energy is lost as a result of an empty collection stroke.

According to another aspect of the present invention, a method is provided for the application 5 driving a rotatable drive shaft of a drive or device described above, comprising in each case rolling the cord of the first reel member and subsequently rolling the cord I of the second reel member for the substantially undiscovered Continuous driving of the drive shaft.

Further advantages, features and details of the present invention follow from the description of two preferred embodiments thereof. Reference is made in the description to the figures, in which: figure 1 shows a view of a person who is provided with a first embodiment of the drive according to the invention.

Figure 2 a detailed perspective view of the first embodiment.

Figure 3 shows a partly broken away side view of the first embodiment; and Figure 4 shows a second preferred embodiment of the invention.

Figure 1 is given to a person P, for example a cave researcher or the like, who requires long-term artificial light. Especially when investigating caves, it is of vital importance to have artificial light at all times. Such a person cannot afford that the artificial light, which is usually supplied, for example, by a flashlight, is no longer available as a result of the batteries of the flashlight running out.

The person P carries a preferred embodiment of a drive 1, wherein the drive generates electricity for a lamp 19. The drive 1 of the lamp 19 is arranged partly inside and partly outside a housing 3. . The housing 3 hangs around the person's neck by means of a belt 2. Outside the housing <0.-5 - f: hl

in Figure 1, tension cords 4,5 are understood to mean H

rope, chains, tires, strips, etc., which I

using both hands H of the person P alternately I

to pull down. I

In figure 2 the operation of the drive is 1 l

explained further. Shown is a part 6, at H

preferably in the form of a reel on which a left I

cord 4 can be unwound and unwound. Similarly, part I

7, preferably a reel, on which a right H

10 ter cord 5 can be unwound and unwound. Both parts 6 H

and 7 are mounted on a shaft 9 and 9 'respectively. I

Gears H are fixed with respect to the reels 6 and 7

10 and 11, each of which is provided with an H

row of teeth 11, 13. The row of teeth 11 and 13 of the gear wheels H

10 and 12 engage an H at a first position at the top

row of teeth 17 of a freewheel gear 16. The rows of teeth H

11 and 13 engage I at a second position at the bottom

a row of teeth 15 of a freewheel gear 14. The upper H

first freewheel gear 16 and the lower freewheel gear H

14 both engage on a rotatable shaft 18. H

The gear wheel 16 is designed in a known manner H

as a freewheel gear, which means that with rotation in H

a first direction to the drive shaft is taken, H

while with rotation in the opposite direction the H

25 drive shaft is released. Gear 14 is just like H

freewheel, with rotation in the first H

is rotated in the direction of the axis 18, while rotation in H

the opposite direction to the axis is released. H

The principle of the drive is furthermore H

30 illustrated in Figure 3 which is a partially opened H

shows the left side view of the drive 1. H

Visible is the tooth row 13 of the gear wheel 12 which is H

engages the tines 17 and 15 of free running gear H

16 and 14. Respectively freewheel gears 16 and 14. H

35 For example, if the left hand of person P is H

pull right cord 5 downwards (arrow Pjj will take the reel H

7, seen in side view from the left, to the right H

so that gear 12 also rotates clockwise. This H

Movement of the teeth 13 of the gear wheel I 12 clockwise causes a rotation in the direction of the arrow P. The clockwise movement of gear 12 causes rotation of the lower freewheel gear 14 in the direction opposite to P3.

Both freewheel gears 14 and 16 then transfer the rotating movement to the row of teeth 11 of gear 10, so that it rotates to the left. This ensures that the cord 4 on the left reel 6 is automatically wound up (arrow P2). The drive of the shaft 18 in the direction of the arrow P3 is brought about by pulling the cord 5 downwards in the direction of the arrow doordat3 in that the freewheel gear 16 carries the axle 18, while the freewheel gear 14 axis 18. The latter means that the freewheel gear 14 and the shaft 18, at least when the right cord 5 is pulled down, rotate in opposite directions.

When the cord 5 is fully or partially unrolled, the other hand H of the person can unroll the left cord 4 while letting the right cord 5 celebrate. When the left-hand cord 4 of the reel is unrolled, the reel 6 will rotate the left-hand gear 10 attached thereto, viewed from the left-hand side, clockwise. This causes the upper freewheel gear 16 to rotate in the direction opposite to arrow P3. Since the freewheel gear 16 is now in the freewheel, the axle is released and the freewheel gear 16 has no influence on this axle. However, the lower freewheel gear 14 is rotated in the direction of arrow P3. Since the freewheel gear during this movement is not in the freewheel, it is currently the freewheel gear 14 that drives on shaft 18.

Both freewheel gears 14 and 16 give their movement over I on gear wheel 12, which as a result will rotate counterclockwise, which has the consequence that the right-hand cord I 5 is automatically wound up.

By alternately tightening the left-hand cord 4 and the right-hand cord 5, the gear wheels 10 and

12 rotated back and forth. Because the gear wheels 10 and 12 I

engaging freewheel gears that are on a central axis I

18 of which the freewheel on the described H

is set, the drive shaft 18 is driven by the H

5 upper freewheel gear 16 and the lower freewheel

gear 14 driven. Optionally, long "H

possible strokes, meaning that I

almost the entire cord 4 into the entire cord 5 l

is unrolled. However, short strokes are also possible I

10 wherein only a small part of one cord H each

is unrolled. H

The construction described

drive shaft 18 in one direction and essentially without I

interruption of an empty stroke, or called a stroke. I

This means that use is made in a very efficient manner. I

made from the H transferred by the person to the drive

brought energy. H

In Figure 1, the drive shaft 18 is connected to H

a dynamo (not shown) that causes conversion H

20 of the rotational energy of drive shaft 18 in electric I

energy. The electrical energy is then used H

for feeding the lamp 19. H

In Figure 4, another embodiment is H

displayed. In this embodiment the drive is in H

25 has a housing 3 'mounted on an H

frame consisting of, for example, two legs 20 H

and 21. It will be clear that the H

implementation is shown schematically. When ad

example the frame is mounted on the seabed, H

30 a much more complicated frame construction used H

must become. The principle of implementation remains H

however the same. H

A hinge 24 is provided on the frame H

over which a long arm 23 can pivot. H

At the end of arm 23, a floating body 22 is provided, which H

floats on the water surface w.o. of the water w. As H

due to the wave movement of the water, the floating H

body move up and down in the direction of arrow H

* U "I δ I P. This up and down movement is transferred to a left-hand cord or chain 25 and a right-hand cord or chain 26 of the drive. Because in the illustrated embodiments the floating body is moved upwards, the left cord 25 is unrolled and the right cord 26 is automatically rolled up, while in a downward movement the right cord 26 is being rolled while the left cord 25 is rolled up automatically. . Due to the swell of the water, the drive can independently convert the energy stored in the waves into a rotation of an I drive shaft, depending on the size and speed of the wave. This rotational energy can, for example by using a generator, be converted into electrical energy. However, other energy conversions are also conceivable.

In an embodiment not shown, the drive is applied to swimmers who do not want or cannot use their legs. In such an embodiment, the drive shaft 18 is connected to a water screw. By swiveling the hands back and forth the swimmer can drive the screw, which will propel him through the water.

The present invention is not limited to the embodiments thereof described above; the rights applied for are determined by the following claims, within the scope of which many modifications are conceivable.

Claims (12)

CLAIMS 1. Drive for driving an "H rotatable drive shaft, comprising: a first reel member provided with a gear on which a first drive cord can be rolled up and unrolled, and a second reel reel provided with a gear wheel on which a H - a first freewheel gear arranged between the H first and second gear to engage on both gears in an H first position; 15. a second freewheel gear that is between the H first and second gear is arranged to engage on both gears at a second position; H - a drive shaft attached to the freewheel gears and H driven therewith; of the first drive cord simultaneously rotate the drive shaft in a certain direction of rotation and H roll up the second drive cord and the by unrolling the second drive cord H, simultaneously rotate H the drive shaft in the same direction of rotation and roll up H of the first drive cord. H 2. Drive as claimed in claim 1, wherein the H freewheel of the first freewheel gear is set H 30 for driving the drive shaft when unrolling the first reel member and releasing the drive shaft for the second shaft member when unrolling the H, while H freewheeling of the second freewheel gear is arranged H for releasing the drive shaft when unrolling the first reel member H and driving the drive member when unrolling the H second reel member. H 3. Drive as claimed in claim 1 or 2, wherein H in the engagement position of the first and second gear H on the first freewheel gear is substantially opposite the engagement position of the first and second gear on the second freewheel gear. 4. Drive as claimed in any of the foregoing claims, wherein the gear wheels of the first and second reel members are arranged substantially parallel to the drive shaft, substantially perpendicular to which the freewheel gears are arranged. 5. Drive as claimed in any of the foregoing claims, wherein the drive shaft is connected to an I generator for generating electricity as a result of rotation of the drive shaft. The drive of claim 5, wherein the I generator is connected to a lamp. I 15 7. Drive as claimed in any of the foregoing claims, wherein the drive shaft is connected to a propulsion screw for propelling the drive. 8. Drive as claimed in any of the foregoing claims, wherein the cords are provided with engagement parts on which an operator can engage the cords for manually rolling up the respective cord of successively the first and the second reel member . I 25 Device for extracting electrical energy from wave waves of water, comprising: at least one drive according to at least one of the preceding claims; - a frame to be arranged in the water on which the drive can rest; I - an arm arranged pivotally relative to the frame, I - at least one floating body arranged on the arm; Wherein the first drive cord on a first side relative to the pivot point and the second drive cord on a second side relative to the pivot point are attached to the arm for converting the wave stroke in a rotational movement of the rotatable drive shaft; Means for converting the rotational energy of the drive shaft into electrical energy. I Device as claimed in claim 9, wherein the said means comprise a generator. "I 11. Method for driving a rotatable drive shaft of a drive or device I according to any one of the preceding claims, comprising in each case rolling H of the cord of the first reel member and subsequently rolling of the cord H of the second reel member for driving the drive shaft substantially continuously. H 12. Method as claimed in claim 11, comprising manually unrolling the first and second reel run. I