CN105346694A - Structural device of ship whale tail wheel propeller based on stepping motor control - Google Patents

Abstract

The invention relates to a structural device of a marine whale tail wheel propeller controlled by a stepping motor. The device mainly consists of a pod shell, a rotary wheel (5) installed in the pod shell, and a rotary wheel (5) ), a plurality of blades (2) connected on both sides, a driving mechanism that drives the rotary wheel (5) to rotate, and a driving mechanism that drives the blades (2) to swing. According to different working conditions, the present invention can change the size of the thrust by adjusting the blade swing law and the rotating speed of the rotary wheel, and make the propulsion device run with higher propulsion efficiency, which improves the utilization rate of the output power of the main engine and saves energy in ships. Advantages.

Description

Structural device of marine whale tail wheel propeller based on stepping motor control

technical field

The invention relates to the technical field of ship propulsion, in particular to a structural device of a ship whale tail wheel propeller controlled by a stepping motor.

Background technique

Today, energy saving and emission reduction are getting more and more attention in all walks of life. Improving propulsion efficiency is also an important measure for energy saving and emission reduction in the shipbuilding field; the whale-tail wheel propeller adopts the bionics principle of simulating the thrust generated by the tail swing of a whale, and has high propulsion efficiency. High, low hydrodynamic noise; the theoretical propulsion efficiency of the whale tail wheel propeller is above 85%, much higher than the traditional propeller propeller; the Dutch walvisstaart company has developed a mechanical prototype and is conducting ship tests. However, domestic research in this field is relatively blank.

Based on the above background, the applicant proposed a structural device of a marine whale tail wheel propeller based on stepping motor control. The propulsion device can adjust the rotation speed of the rotary wheel and the swing law of the blades according to different working conditions to achieve higher propulsion. efficiency.

Contents of the invention

The technical problem to be solved by the present invention is to provide a structural device of a ship's whale-tail wheel propeller based on stepping motor control, so as to avoid the disadvantage of a purely mechanical whale-tail wheel propeller with complicated mechanical structure.

The present invention solves its technical problem and adopts the following technical solutions:

The structural device of the ship's whale tail wheel propeller based on the stepping motor control provided by the present invention mainly consists of a pod housing, a revolving wheel installed in the pod housing, a plurality of blades connected to both sides of the revolving wheel, It consists of a drive mechanism that drives the rotary wheel to rotate, and a drive mechanism that drives the blades to swing.

The driving mechanism that drives the rotary wheel to rotate is composed of the main engine in the ship and its power transmission mechanism; the power transmission mechanism is composed of a vertical shaft, a horizontal shaft, a tapered roller bearing, a support bearing, and an umbrella-shaped shaft for power transmission. Composed of large gear and bevel pinion, wherein: the vertical shaft passes through the support bearing and is connected to the drive shaft of the main engine through a coupling, while the vertical shaft is connected with the bevel pinion through a key, and the bevel pinion is fixed on the horizontal shaft On the top, the horizontal shaft is connected with the rotary wheel through a flat key.

The number of the driving mechanism driving the blades to swing is the same as the number of the blades, and the driving mechanisms driving the blades to swing are evenly arranged on the inner circumference of the rotary wheel.

Each driving mechanism that drives the swing of the blade is composed of a blade connecting shaft, a sealing ring, a needle roller support bearing, a bearing fixing sleeve, a rigid coupling, and a stepping motor. One end is connected, and the other end of the rigid coupling is connected with the output shaft of the stepping motor. The rotation of the stepping motor drives the blade to swing to adjust the swing angle; the blade connecting shaft passes through the needle roller support bearing, and the needle roller support bearing is fixed on the bearing. in the inner ring of the sleeve.

The blade connection shaft has one end as a square tail end connected with the square inner hole at the center of the blade tail, and the other end as a cylinder connected with a rigid coupling.

On both sides of the horizontal rotating shaft, there are anti-winding mechanisms that prevent winding when the rotary wheel rotates. Each anti-winding mechanism is composed of a collector ring, wherein: the moving ring of the collector ring is fixed on the horizontal rotating shaft On the top, it rotates synchronously with the rotary wheel, and the fixed ring of the collector ring is fixed by the main support plate and the auxiliary support plate in the pod housing; the moving ring is provided with an outlet connected to the stepping motor, and the fixed The ring is provided with a wire inlet.

A gear lubricating mechanism is arranged on the bevel gear and the bevel pinion. The gear lubricating mechanism is composed of a gear lubricating cover and a pinion lubricating cover. It is connected by bolts and fixed on the sub-support plate in the pod shell; the pinion lubricating cover is divided into two parts, left and right, and the two parts are connected by bolts and fixed on the upper shell of the pod with screws through the connecting piece. superior.

A waterproof mechanism is arranged at the rotary wheel, and the waterproof mechanism is composed of a skeleton oil seal and a pan-seal sealing ring, wherein: the skeleton oil seal and the pan-seal sealing ring are set on the rotary wheel, and are pre-installed with the upper shell and the lower shell of the pod. Match the remaining slots.

The pod shell is composed of a pod upper shell and a pod lower shell connected by bolts; a support mechanism composed of a main support plate, an auxiliary support plate and a support tripod is arranged inside the pod shell, wherein : The main support plate and the auxiliary support plate are fixed in the slots of the upper shell of the pod and the lower shell of the pod; the supporting legs are fixed on both sides of the main support plate through screw connections.

Compared with the prior art, the present invention has the following main technical effects:

1. It has good energy saving and emission reduction benefits.

The specific airfoil blades of the new drive mechanism adopted can adjust the swing law according to the required working conditions according to the stepping motor control program, so as to change the swing law of the blades, adapt to more working conditions, and achieve higher The propulsion efficiency improves the utilization rate of the engine output power, saves energy, and has good energy-saving and emission-reduction benefits.

2. Easy maintenance and strong adaptability.

The vertical shaft transmits power to the horizontal shaft through the bevel gear, and then to the rotary wheels on both sides. The inside of the pod uses the main support plate and the auxiliary support plate to reasonably integrate the mechanical structure such as gears, stepping motors, and collector rings. The electrical mechanism is partitioned; the detachable and separate pod upper shell, pod lower shell, and large and small gear lubrication cover greatly facilitate the maintenance and replacement of internal parts of the device, and have strong adaptability.

3. Compact structure, saving space.

The rotary wheel and the stepping motors on the rotary wheel are symmetrically arranged on both sides of the pod housing, the middle vertical shaft transmits power to the horizontal shaft through the bevel gear, and current collectors are arranged on both sides of the horizontal shaft. The ring device makes full use of the space at the gear to design the gear lubrication cover. These arrangements make great use of the space inside the pod and make the whole structure more compact.

Description of drawings

Fig. 1 is the front view of the structural device (not including the fairing) of the ship's whale tail wheel propeller based on the stepping motor control of the present invention.

Fig. 2 is the internal structural diagram of the structural device of the marine whale tail wheel propeller based on the stepping motor control of the present invention.

Fig. 3 is the partial view of the bevel gear of the structural device of the marine whale tail wheel propeller based on the stepping motor control of the present invention.

Fig. 4 is the structural diagram of the control blade swing of the structural device of the marine whale tail wheel propeller based on the stepping motor control of the present invention.

In the figure: 1. The upper shell of the pod, 2. The blade, 3. The lower shell of the pod, 4. The vertical shaft, 5. The rotary wheel, 6. The connecting shaft of the blade, 7. The sealing ring, 8. The needle roller Support bearing, 9. Bearing fixed sleeve, 10. Rigid coupling, 11. Stepping motor, 12. Skeleton oil seal, 13. Pansysel sealing ring, 14. Transverse shaft, 15. Collector ring, 16. Main support plate , 17. Tapered roller bearing, 18. Bevel gear, 19. Gear lubricating cover, 20. Auxiliary support plate, 21. Support tripod, 22. Bevel pinion, 23. Pinion lubricating cover, 24. Connecting piece, 25. support bearing.

detailed description

The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings.

The structural device of the marine whale tail wheel propeller based on the stepping motor control provided by the present invention has a structure as shown in Figures 1 to 4: it includes a power transmission mechanism that is organically combined, a driving mechanism that drives the blades to swing, and an anti-winding mechanism. Wire mechanism, gear lubricating mechanism, waterproof mechanism, and supporting mechanism. These mechanisms cooperate with each other to make the rotary wheel rotate and the blades swing, so as to maintain high propulsion efficiency under different working conditions and improve the utilization rate of the output power of the main engine. Save fuel consumption.

The power transmission mechanism is arranged in the pod housing, and the power transmission mechanism consists of a vertical shaft 4, a rotary wheel 5, a horizontal shaft 14, a tapered roller bearing 17, a large bevel gear 18, a bevel pinion 22, The supporting bearing 25 is composed of, wherein: the vertical rotating shaft 4 passes through the supporting bearing 25, and is connected with the drive shaft of the main engine in the ship through a coupling, and at the same time, the other end of the vertical rotating shaft 4 is connected with the bevel pinion 22 through a key, and the bevel gear 18 Fixed on the horizontal shaft 14 by a key, the rotary wheel 5 is connected with the horizontal shaft 14 by a flat key. The bevel gear meshes to realize power transmission.

The driving mechanism for driving the blades to swing is arranged on the inner circumference of the rotary wheel 5. The driving mechanism for driving the blades to swing is composed of a blade connecting shaft 6, a sealing ring 7, a needle bearing bearing 8, a bearing fixing sleeve 9, and a rigid coupling 10, a stepper motor 11, wherein: the square inner hole at the center of the tail of the blade 2 is connected to the square end of the blade connecting shaft 6, and the cylindrical end of the blade connecting shaft 6 is connected to one end of the rigid coupling 10, and the rigid coupling 10 The other end of the blade is connected with the output shaft of the stepping motor 11, and the swing angle is adjusted by driving the blades to swing through the rotation of the stepping motor; in the inner circle.

The anti-winding mechanism is arranged on the horizontal rotating shaft 14, and an anti-winding mechanism is arranged on each of the rotary wheels on both sides. The anti-winding mechanism is composed of a collector ring 15, wherein: the moving ring of the collector ring 15 is fixed on On the horizontal rotating shaft 14, it rotates synchronously with the rotary wheel 5. The fixed ring of the collector ring 15 is fixed on the main support plate 16 and the auxiliary support plate 20. The moving ring is provided with an outlet connected to the stepping motor. A wire inlet connected to the circuit in the ship is provided so that the lead wires of the stepping motor will not be entangled when the rotary wheel 5 rotates.

The gear lubricating mechanism is arranged on the bevel gear 18 and the bevel pinion 22. The gear lubricating mechanism is composed of a gear lubricating cover 19 and a pinion lubricating cover 23, wherein: the big gear lubricating cover 19 is divided into an upper and a lower gear. Two parts, the two parts are connected by bolts and fixed on the auxiliary support plate 20 by screws. The pinion lubricating cover 23 is divided into two parts, left and right, and the two parts are connected by bolts, and are fixed on the upper casing 1 of the pod with screws by the connecting piece 24 .

The waterproof mechanism is arranged at the rotary wheel 5, and the waterproof mechanism is composed of a skeleton oil seal 12 and a pan-sealing sealing ring 13, wherein: the skeleton oil seal 12 and the pan-sealing sealing ring 13 are set on the rotary wheel 5, and are connected with the hanging The upper casing 1 of the cabin cooperates with the channel reserved in the lower casing 3 of the pod.

The support mechanism is arranged inside the pod, and the support mechanism is composed of the upper shell 1 of the pod, the lower shell 3 of the pod, the main support plate 16, the auxiliary support plate 20 and the supporting foot frame 21, wherein: the upper shell of the pod The shell 1 is connected with the lower shell 3 of the pod by bolts; the main support plate 16 and the auxiliary support plate 20 are fixed in the slots of the upper shell 1 of the pod and the lower shell 3 of the pod; the supporting legs 21 are connected by screws Fixed on both sides of the main support plate 16.

The structural device of the ship's whale tail wheel propeller based on the stepping motor control provided by the present invention, its working process is: the vertical shaft is connected with the main engine transmission shaft installed inside the ship through a coupling, and the main engine rotates to drive the vertical shaft through The bevel gear transmits power to the horizontal shaft, driving the rotary wheels at both ends of the horizontal shaft to rotate. The stepper motor on the rotary wheel rotates synchronously with the rotary wheel. At the same time, the leads of the stepper motor pass through the collector ring and are installed inside the hull. The automatic control circuit of the stepping motor is connected with the driving circuit, the circuit outputs signals, the shaft of the stepping motor rotates, and drives the blades to swing around their own axis according to a certain law, generating forward thrust, pushing the ship forward, and maintaining high propulsion efficiency.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent replacements without departing from the spirit and scope of the technical solutions of the present invention shall fall within the scope of the claims of the present invention.

Claims (9)

1. A structural device based on a stepper motor controlled whale tail wheel propeller, characterized in that the device is mainly composed of a pod housing, a rotary wheel (5) that is contained in the pod housing, and a rotary wheel (5) A plurality of blades (2) connected on both sides, a drive mechanism that drives the rotary wheel (5) to rotate, and a drive mechanism that drives the blades (2) to swing. 2. The structural device of the ship's whale tail wheel propeller according to claim 1, characterized in that the drive mechanism that drives the rotary wheel (5) to rotate is made up of the main engine and its power transmission mechanism in the ship; the power The transmission mechanism consists of a vertical shaft (4), a horizontal shaft (14), a tapered roller bearing (17), a support bearing (25), and a bevel gear (18) and a bevel pinion (22) for power transmission. Composition, wherein: the vertical rotating shaft (4) passes through the support bearing (25), and is connected with the drive shaft of the main engine through a coupling, and at the same time, the vertical rotating shaft (4) is connected with the bevel pinion (22) through a key, and the bevel-shaped large Gear (18) is fixed on the transverse rotating shaft (14), and transverse rotating shaft (14) is connected with rotary wheel (5) by flat key. 3. The structural device of the marine whale tail wheel propeller according to claim 1, characterized in that the number of the driving mechanism that drives the swing of the blades (2) is the same as the number of the blades (2), and the blades (2) are driven The swinging drive mechanism is evenly arranged on the inner circumference of the rotary wheel (5). 4. The structural device of the marine whale tail wheel propeller according to claim 3, characterized in that each drive mechanism that drives the swing of the blade (2) is connected to the shaft (6), sealing ring (7), needle roller by the blade Supporting bearing (8), bearing fixing sleeve (9), rigid coupling (10) and stepper motor (11), wherein: the tail of the blade (2) connects the shaft (6) and the rigid coupling (10) through the blade ), the other end of the rigid coupling (10) is connected with the output shaft of the stepper motor (11), and the swing angle is adjusted by driving the blade to swing through the rotation of the stepper motor; the blade connecting shaft passes through the needle bearing (8), the needle support bearing (8) is fixed in the inner ring of the bearing fixed sleeve (9). 5. The structural device of the ship's whale tail wheel propeller according to claim 4, characterized in that the blade connecting shaft (6), one end of which is a square tail end, is connected to the square inner part of the blade (2) tail center. The holes are connected, and the other end is cylindrical and connected with the rigid shaft coupling (10). 6. The structural device of the ship's whale tail wheel propeller according to claim 1, characterized in that the two sides on the transverse rotating shaft (14) are arranged with anti-winding devices that prevent the winding of the rotary wheel (5) from occurring when it rotates. Winding mechanism, each anti-winding mechanism is made up of slip ring (15), and wherein: the moving ring of slip ring (15) is fixed on the horizontal rotating shaft (14), rotates synchronously with rotary wheel (5), and the set The fixed ring of the electric ring (15) is fixed by the main support plate (16) and the auxiliary support plate (20) in the pod housing; The fixed ring is provided with a wire inlet. 7. The structural device of the marine whale tail wheel propeller according to claim 2, characterized in that a gear lubricating mechanism is arranged on the bevel gear (18) and the bevel pinion (22), and the gear lubricating mechanism consists of The large gear lubricating cover (19) and the pinion lubricating cover (23) are composed, wherein: the large gear lubricating cover (19) is divided into upper and lower parts, and the two parts are connected by bolts and fixed in the pod shell by screw connections The pinion lubricating cover (23) is divided into two parts, left and right, and the two parts are connected by bolts, and are fixed on the upper shell of the pod with screws by connecting piece (24). 8. The structural device of the ship's whale tail wheel propeller according to claim 1, characterized in that a waterproof mechanism is arranged at the rotary wheel (5), and the waterproof mechanism consists of a skeleton oil seal (12), a pan-seal seal ( 13) Composition, wherein: the skeleton oil seal (12) and the pan-seal sealing ring (13) are sleeved on the rotary wheel (5), and cooperate with the reserved grooves in the upper shell and the lower shell of the pod. 9. The structural device of the marine whale tail wheel propeller according to claim 1, characterized in that the pod housing is made up of the pod upper housing (1) and the pod lower housing (3) connected by bolts; A support mechanism consisting of main support plate (16), auxiliary support plate (20) and support foot frame (21) is arranged inside the pod housing, wherein: main support plate (16) and auxiliary support plate (20) are fixed on In the draw-in slots of the pod upper casing (1) and the pod lower casing (3); the supporting legs (21) are fixed on both sides of the main support plate (16) through screw connections.