CN107244405A - A kind of pod propulsion hydraulic propeller - Google Patents

Abstract

The invention provides a pod type water jet propulsion unit, which comprises an installation platform, a pod propeller bracket arranged at the lower end of the installation platform, a pod propeller cabin body arranged at the lower end of the pod propeller bracket, The motor seat in the cabin body, the motor installed on the motor seat, the transmission shaft connected to the output end of the motor, the water jet propulsion pump installed on the transmission axis, the lower end of the pod propeller cabin is provided with an inlet, a side A nozzle is provided, a flow channel is formed between the inlet and the nozzle, and the nozzle is set facing the water jet propulsion pump, and a data transmitter and a hydraulic steering device are arranged on the upper end of the installation platform. The present invention is on the basis of maintaining the advantages of the original water jet propeller, adding the bracket, cabin body, electric propulsion system and steering device of the pod propeller, thereby reducing the complicated mechanical transmission mechanism and reversing device of the water jet propeller, and further The propulsion efficiency and operational performance of the thrusters are improved, the noise is reduced and the stealth performance is enhanced.

Description

A pod-type water jet propulsion

technical field

The invention relates to a propeller, in particular to a pod type water jet propeller.

Background technique

With the rapid development of the times, high-performance ships have gradually entered people's field of vision. In the field of high-performance ships, water jet propulsion devices have begun to play their own unique advantages. As a special propulsion device, water jet propulsion has a history of nearly 400 years, and it was first used in ship propulsion at the end of the 19th century. With its high propulsion efficiency, good anti-cavitation performance, significant vibration and noise reduction effect and good stability, it is widely used in warships, nuclear submarines, minesweepers, landing ships, high-speed ships, port operation ships, amphibious landings Ships and other special vessels. However, the mechanical transmission mechanism of the water jet propeller is relatively complex, bulky, complicated to replace the pump impeller, and has poor turning and reversing performance, which seriously limits its wide application. At the same time, with the development of domestic and foreign ships in the direction of miniaturization, invisible navigation, high speed, modular installation and energy saving, the traditional form of water jet propulsion has been unable to meet the current domestic and foreign development trends. Therefore, the installation method and the driving method of the water jet propeller need to be further improved.

At present, with the rapid development of technologies related to electronic power and control systems, pod propellers have gradually entered the field of ships. The pod propulsion adopts a completely different idea from the propulsion form of the water jet propulsion, eliminating the cumbersome propulsion shafting, placing the propulsion motor inside the cabin, and connecting it to the hull through a bracket, so that the entire cabin can achieve 360-degree Continuous rotation. This arrangement not only saves the conventional propulsion shafting and rudder, but more importantly, it can make the arrangement of the hull capacity more reasonable, and the optimization of the hull shape is more free. Performance also helps tremendously. During the construction of the ship, the pod thruster can be directly connected to the bottom of the stern as a separate module, simplifying the entire ship construction process. The advantages of the pod propulsion fill in the shortcomings of the water jet propulsion. Therefore, the combination of the water jet propulsion and the pod cabin, bracket, electric propulsion system and steering gear will further improve the high-speed and stealth of the ship. It has higher propulsion efficiency and better maneuverability during the propulsion process.

Contents of the invention

The purpose of the present invention is to provide a pod type water jet propeller.

The purpose of the present invention is achieved like this: comprise installation platform, be arranged on the pod thruster bracket of installation platform lower end, be arranged on the pod thruster cabin body of pod thruster bracket lower end, be arranged on the pod thruster cabin body The motor base, the motor installed on the motor base, the transmission shaft connected to the output end of the motor, the water jet propulsion pump installed on the transmission shaft, the lower end of the pod propeller cabin is provided with an inlet, and the side is provided with a nozzle , a flow channel is formed between the inlet and the nozzle, and the nozzle is set facing the water jet propulsion pump, and the upper end of the installation platform is provided with a data transmitter and a hydraulic steering device.

The present invention also includes such structural features:

1. The included angle between the pod propeller bracket and the pod propeller cabin is 90 degrees or 60 degrees, respectively forming an L-shaped pod water jet propulsion or an inclined L-shaped pod water jet propulsion .

2. The installation platform is arranged at the tail of the ship.

3. The pod thruster bracket set at the lower end of the installation platform means: the pod thruster bracket is set at the lower end of the installation platform through the installation flange.

Compared with the prior art, the beneficial effect of the present invention is that a pod-type water jet propeller of the present invention has the advantages of strong cavitation resistance, small vibration and good stability by adding The support 9 of the pod propeller, the pod propeller cabin body 11, the electric motor 4 and the hydraulic steering gear 5 are provided. The addition of the pod propeller support 9 makes the waterjet fully submerged in water, avoiding the large air radiation noise and long ship wake generated when the waterjet propels near the water surface, and further improving its stealth performance. The pod propeller cabin body 11 provides the space for installing the motor 4 and the drive shafting 5, so that the pod water jet propulsor directly adopts conventional electric power to drive the water jet propulsion pump to rotate, which reduces the use of diesel engines and makes the ship The space configuration is more flexible, the position of the power engine room is not restricted by the propeller, and can be freely arranged according to specific needs, thereby increasing the loading capacity and improving the economy of ship shipping. At the same time, the addition of the electric propulsion system further reduces the bulky traditional mechanical propulsion system of the water jet propulsion system, further improving the propulsion efficiency.

The hydraulic steering device 10 is added to the pod-type water jet propeller, which avoids problems such as low degree of thrust vectoring, reversing, and poor turning performance of the water jet propulsion. It makes the ship easier to operate in some emergency conditions such as emergency braking and reversing, gets rid of the restrictions of side thrust and rudder, shortens the turning cycle of the ship, improves the turning speed, and optimizes the overall maneuverability. The pod-type waterjet also promotes the trend of waterjet to modular development, the waterjet propulsion pump 6 of the waterjet, the transmission shafting 5 and the pod propeller bracket 9, the pod propeller cabin 11. The hydraulic steering device 10 constitutes a complete propulsion module. In the process of ship construction, it can always be processed as an independent module outside the shipyard. After the interior of the hull and the stern are arranged, it can be directly installed at the stern of the ship, which further reduces the ship construction cycle. At the same time, the pod type water jet As an independent module, the propeller can be easily maintained in case of failure. If necessary, the corresponding module can be disassembled and installed at sea, which further improves the maintenance efficiency of the ship. A pod-type water jet propeller can be either an inclined L-shaped pod propeller or a straight L-shaped pod propeller, and the included angle between the bracket and the cabin body can be adjusted according to task requirements.

Description of drawings

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is a structural schematic view of the present invention looking up;

Fig. 3 is a schematic view of the structure in side view direction of the present invention.

In the figure: 1. Data transmitter, 2. Mounting flange, 3. Motor base, 4. Motor, 5. Drive shafting, 6. Water jet propulsion pump, 7. Coupling, 8. Nozzle, 9. Crane Cabin propeller bracket, 10. Hydraulic steering gear, 11. Pod propeller cabin body, 12. Inlet, 13. Installation platform.

detailed description

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

In conjunction with Fig. 1 to Fig. 3 (taking oblique L shape among the figure as example), the present invention comprises installation platform 13, the pod thruster bracket 9 that is arranged on the lower end of installation platform 13, the pod that is arranged on the pod thruster bracket 9 lower ends The propeller cabin body 11, the motor seat 3 arranged in the pod propeller cabin body 11, the motor 4 installed on the motor seat 3, the transmission shaft system 5 connected with the output end of the motor, the motor shaft system installed on the transmission shaft system 5 The water jet propulsion pump 6, the lower end of the pod propeller cabin is provided with an inlet 12, and the side is provided with a nozzle 8, a flow channel is formed between the inlet and the nozzle, and the nozzle is arranged facing the water jet propulsion pump, and the upper end of the installation platform is arranged There is a data transmitter 1 and a hydraulic steering device 10 . The included angle between the pod propeller bracket and the pod propeller cabin is 90 degrees or 60 degrees, respectively forming an L-shaped pod-type water jet propeller or an inclined L-shaped pod-type water-jet propulsion unit. The installation platform 13 is arranged at the stern of the ship. The pod propeller bracket arranged at the lower end of the installation platform means that the pod propeller bracket is arranged at the lower end of the installation platform through the installation flange 2 .

The present invention is a pod-type water-jet propeller which combines a water-jet propeller and a pod propeller. The propeller directly adds a water-jet propulsion pump of the water-jet propulsion pump , Transmission shafting, inlet runner and outlet runner. The water jet propulsion pump is directly fixed on the axis of the cabin, and is installed at the end away from the propeller bracket of the pod, while the shafting system is also arranged along the axial direction of the cabin and connected with the motor shafting inside the cabin, thereby reducing the complexity of the transmission mechanism. The inlet channel is arranged at the bottom of the pod cabin to increase the inlet flow at the inlet, and the nozzle of the outlet channel is reserved at the junction of the original pod propeller and propeller. At the same time, the whole device is directly controlled by the steering device. On the basis of maintaining the advantages of the original water jet propeller, the present invention adds the pod propeller bracket, cabin body, electric propulsion system and steering device, thereby reducing the complicated mechanical transmission mechanism of the water jet propeller and further improving the Propelling efficiency and maneuverability of the thrusters, reduced noise and enhanced stealth. The bracket and the cabin of the pod thruster are added, and the angle between the bracket and the cabin can be adjusted. The water jet propulsion pump, the transmission shaft system, the inlet flow channel and the outlet flow channel of the water jet propeller are directly installed and arranged in the cabin of the pod propeller. The cabin body of the push pod propeller has joined the electric propulsion system. The support of the water jet propeller, the pod propeller, the cabin body and the propulsion system are directly controlled by the steering gear to turn the rudder. The whole set of water jet propulsion device and the support of the pod propeller, the cabin body, the electric propulsion system and the steering gear constitute a complete propulsion module.

The main purpose of the patent of the pod type water jet propulsion device of the present invention is to overcome many shortcomings in the water jet propulsion device, add the advantages of the pod propulsion device, and make the performance of the propulsion device better. The included angle between the bracket and the cabin body of the present invention can be 90, 60 degrees or other angles, which can be adjusted according to task requirements.

To sum up, the present invention provides a pod-type water-jet propeller that combines a water-jet propeller and a pod propeller. Waterjet propulsion pump, transmission shafting, inlet runner and outlet runner of the device. The water jet propulsion pump is directly fixed on the axis of the cabin, and is installed at the end away from the propeller bracket of the pod, while the shafting system is also arranged along the axial direction of the cabin and connected with the motor shafting inside the cabin, thereby reducing the complexity of the transmission mechanism. The inlet channel is arranged at the bottom of the pod cabin to increase the inlet flow at the inlet, and the nozzle of the outlet channel is reserved at the junction of the original pod propeller and propeller. At the same time, the whole device is directly controlled by the steering device. On the basis of maintaining the advantages of the original water jet propeller, the present invention adds the bracket, cabin body, electric propulsion system and steering device of the pod propeller, thereby reducing the complicated mechanical transmission mechanism and reversing device of the water jet propeller, The propulsion efficiency and operational performance of the propeller are further improved, the noise is reduced and the stealth performance is enhanced.

Claims (5)

1. a kind of pod propulsion hydraulic propeller, it is characterised in that：Pushed away including mounting platform, the gondola for being arranged on mounting platform lower end Enter device support, the PODDED PROPULSOR nacelle for being arranged on PODDED PROPULSOR pedestal lower end, the electricity being arranged in PODDED PROPULSOR nacelle Engine-bed, the motor on motor base (frame), the drive shaft system being connected with motor output end, in drive shaft system Water jet propulsion pump, the PODDED PROPULSOR nacelle lower end is provided with import, is provided with spout sideways, shape between import and spout Into runner, and spout, towards water jet propulsion pump setting, the mounting platform upper end is provided with data link and hydraulic steering dress Put.

2. a kind of pod propulsion hydraulic propeller according to claim 1, it is characterised in that：The PODDED PROPULSOR support with Angle between PODDED PROPULSOR nacelle is 90 degree or 60 degree, respectively constitutes L-type pod propulsion hydraulic propeller or oblique L-type pod propulsion Hydraulic propeller.

3. a kind of pod propulsion hydraulic propeller according to claim 1 or 2, it is characterised in that：The mounting platform is set In ship afterbody.

4. a kind of pod propulsion hydraulic propeller according to claim 1 or 2, it is characterised in that：It is arranged under mounting platform The PODDED PROPULSOR support at end refers to：PODDED PROPULSOR support is arranged on mounting platform lower end by mounting flange.

5. a kind of pod propulsion hydraulic propeller according to claim 3, it is characterised in that：It is arranged on mounting platform lower end PODDED PROPULSOR support refers to：PODDED PROPULSOR support is arranged on mounting platform lower end by mounting flange.