Belt and blade propulsion system

Abstract

The invention relates to mechanical engineering. A belt and blade propulsion system comprises a U-shaped housing. Attached to one lateral wall of the housing is a toothed belt drive, below which two parallel-mounted toothed belt drives are attached to the opposite lateral wall of the housing. Blades are rigidly attached in cantilever fashion by the top part thereof, via a rod, to one toothed belt. On their opposite side, the blades are rigidly attached in cantilever fashion by the centre part thereof, via a rod, to two parallel toothed belts simultaneously. Each of the lateral walls of the housing has an actuating toothed belt drive mounted thereto. A toothed wheel of one of said actuating drives is mounted on the same shaft as a toothed wheel of the drive having the belt to which the blades are attached by the top part thereof. A toothed wheel of the other actuating drive is mounted on the same shaft as toothed wheels of the parallel drives. Second toothed wheels of the actuating drives are arranged higher up and are attached to a common shaft mounted to the lateral walls of the housing. Mounted on the housing is a drive motor having a shaft with a toothed wheel mounted thereon which is connected by a toothed belt drive to a toothed wheel mounted on the common shaft of the actuating drives. The result is a reduction in energy loss.

Description

[0001] Belt-blade propeller

[0002] The invention relates to paddle propellers for various types of vehicles for movement on water.

[0003] A caterpillar propeller is known that contains chains or flexible endless belts containing blades attached to pulleys, wherein the blades are mounted on platforms, which in turn are attached to the chain, and the platforms with the blades in the water are oriented by guides installed on the vessel (see Russian Federation patent for invention No. 2537942, class B63H1 / 34, published 10.01.2015).

[0004] The vessel has one propeller installed on each side of the vessel, with the propellers submerged in water to half their height, which creates significant hydraulic resistance and, as a result, reduces the efficiency of using this propeller.

[0005] The closest to the invention in its technical essence and the achieved result is a belt-blade propeller containing a U-shaped housing with belt drives installed on the sides of the housing and vertical blades secured to their belts between the belt drives (see patent for invention of the Russian Federation No. 2443598, class B63H1 / 34, published.

[0006] 27.02.2012).

[0007] This propulsion system maintains the vertical position of the blades as they move sequentially through and above the water, from one pulley to the next and back. However, this system uses smooth drive belts and pulleys with a smooth cylindrical surface. Under significant loads, such as when accelerating a watercraft, this causes the drive belt to slip relative to the pulleys. Furthermore, the vertical position of the blades in the water is maintained by a horizontal shelf at the top of each blade, which rests against guides, preventing the blade from shifting out of the vertical position under water pressure. This creates sliding resistance between the shelves and guides, resulting in energy losses needed to bring the propulsion system into operation.

[0008] The technical problem addressed by the present invention is to overcome the above-identified deficiencies. The technical result addressed by the present invention is the ability to reduce hydraulic energy losses during operation of a belt-blade propeller, since only the propeller blades are in the water, and they are lowered into the water only when they are imparted with translational movement along the vessel. This, in combination with the use of a belt-toothed transmission, allows for the maximum utilization of the drive engine's power to propel a vessel with the described propeller.

[0009] The said technical problem is solved and the technical result is achieved due to the fact that the belt-blade mover contains a U-shaped housing with belt drives installed on the sides of the housing and vertical blades secured to their belts between the belt drives, wherein on one side of the housing, at least one belt-toothed drive is secured to its side wall, and on the opposite side wall of the housing, two parallel-mounted belt-toothed drives are secured, the upper part of the blades are cantilevered rigidly by means of a rod on at least one toothed belt, and the middle part of the blade on the opposite side is cantilevered rigidly secured by means of another rod simultaneously on two parallel-mounted toothed belts,wherein, in order to ensure the vertical arrangement and movement of the blades, parallel belt-toothed transmissions are installed below the belt-toothed transmission installed on the opposite wall of the housing, in turn, on each of the side walls of the housing a drive belt-toothed transmission is installed, wherein the toothed wheel of one drive belt-toothed transmission is installed on one shaft with the toothed wheel of the belt-toothed transmission, on the belt of which the propeller blades are fixed with the upper part, and the toothed wheel of the other drive belt-toothed transmission is installed on one shaft with the toothed wheels of parallel belt-toothed transmissions, on the belts of which the propeller blades are fixed with the middle part, the second toothed wheels of the drive belt-toothed transmissions are located above and are fixed on a common shaft installed on the side walls of the housing, wherein the propeller drive motor is installed on the housing, on the shaft of which the toothed wheel is installed,which is connected by means of a belt-toothed transmission to a toothed wheel, which is mounted on a common shaft of the drive belt-toothed transmissions,

[0010] The study found that the efficiency of this propulsion system can be improved by ensuring that the blades are already moving forward along the vessel even when they first contact the water, and that all blades are always vertical. This allows for the full utilization of the submerged blade surface to generate propulsion. At the same time, since the propulsion system components that ensure continuous blade movement are located above the water, they do not create additional hydraulic resistance to the vessel's movement. This, combined with the use of a belt-and-tooth drive, allows for the full utilization of engine energy to propel the vessel on which this propulsion system is installed. Fig. 1 shows a photograph of the belt-and-blade propulsion system, viewed from the rear.

[0011] Fig. 2 shows a side view of the belt-blade mover.

[0012] Fig. 3 shows a front view of the belt-blade drive.

[0013] The belt-blade propeller comprises a U-shaped housing 1 with belt drives installed on the sides of the housing 1 and vertical blades 2 secured to their belts between the belt drives.

[0014] On one side of the housing 1, on its side wall 3, at least one belt-toothed transmission 4 is fixed.

[0015] On the opposite side wall 5 of the housing 1, two parallel-mounted belt-toothed transmissions 6 are secured.

[0016] The upper part of the blades 2 is rigidly fixed in a cantilever manner by means of a rod 7 on at least one toothed belt 8, and the middle part of the blade 2 on the opposite side is rigidly fixed in a cantilever manner by means of another rod 9 simultaneously on two parallel toothed belts 10.

[0017] To ensure the vertical arrangement and movement of the blades 2, parallel toothed belt transmissions 6 are installed below the toothed belt transmission 4 installed on the opposite wall 3 of the housing. On each of the side walls 3 and 5 of the housing, a drive toothed belt transmission, 11 and 12, respectively, is installed.

[0018] The toothed wheel 13 of one drive belt-toothed transmission 11 is mounted on one shaft with the toothed wheel 14 of the belt-toothed transmission 4, on the belt 8 of which the blades 2 of the propeller are fixed with their upper part.

[0019] The toothed wheel 15 of the other drive belt-toothed transmission 12 is mounted on the same shaft with the toothed wheels 16 of the parallel belt-toothed transmissions 6, on the belts 10 of which the blades 2 of the drive are fixed with their middle part.

[0020] The second gear wheels, 17 and 18 of the drive belt-toothed transmissions, respectively, 11 and 12 are located above and are secured on a common shaft 19, mounted on the side walls 3 and 5 of the housing 1.

[0021] On the housing 1, a drive motor 20 of the propeller is installed, on the shaft of which a gear wheel 21 is installed, which is connected by means of a belt-toothed transmission 22 to a gear wheel 23, which is installed on a common shaft 19 of the drive belt-toothed transmissions 11 and 12.

[0022] The belt-blade mover works as follows.

[0023] The engine 20, through its toothed wheel 21, by means of a toothed belt 24, causes the toothed wheel 23 to rotate, and then, by means of the latter and the toothed wheels 17 and 18 of the drive belt-toothed transmissions 11 and 12, causes the toothed wheels 14 and 16 to rotate synchronously.

[0024] As a result, toothed belts 8 and 10 of belt-toothed transmissions 4 and 6 are set into synchronous motion. Blades 2 begin to dive into the water and sequentially move along the housing 1 of the propeller and, due to interaction with the water, ensure the movement of the vessel on which the described belt-blade propeller is installed.

Claims

FORMULA 1. A belt-blade propeller comprising a U-shaped housing with belt drives mounted on the sides of the housing and vertical blades secured to their belts between the belt drives, characterized in that at least one belt-toothed drive is secured to one side of the housing on its side wall, and two parallel-mounted belt-toothed drives are secured to the opposite side wall of the housing, wherein the upper part of the blades is rigidly cantilevered by means of a rod on at least one toothed belt, and the middle part of the blade on the opposite side is rigidly cantilevered by means of another rod simultaneously on two parallel-mounted toothed belts, and in order to ensure the vertical arrangement and movement of the blades, the parallel-mounted belt-toothed drives are mounted below the belt-toothed drive mounted on the opposite wall of the housing, in turn,on each of the side walls of the housing there is a drive belt-toothed transmission, wherein the toothed wheel of one drive belt-toothed transmission is mounted on the same shaft with the toothed wheel of the belt-toothed transmission, on the belt of which the propeller blades are fixed with the upper part, and the toothed wheel of the other drive belt-toothed transmission is mounted on the same shaft with the toothed wheels of parallel belt-toothed transmissions, on the belts of which the propeller blades are fixed with the middle part, the second toothed wheels of the drive belt-toothed transmissions are located higher and are fixed on the common shaft, mounted on the side walls of the housing, wherein the drive motor of the propeller is mounted on the housing, on the shaft of which a toothed wheel is mounted, which is connected by means of a belt-toothed transmission to a toothed wheel, which is mounted on the common shaft of the drive belt-toothed transmissions.

Images