High-speed catamaran

Abstract

The utility model belongs to the technical field of ships, and discloses a high-speed catamaran. The high-speed catamaran comprises two sheet bodies, the two sheet bodies are arranged in a bilateral symmetry mode, and each sheet body is provided with a first propelling system and a second propelling system which are sequentially arranged in the width direction of the sheet body. The first propulsion system comprises a first propulsion main engine, a first reduction gear box with a clutch, a first transmission shaft and a first propeller which are connected in sequence, and the second propulsion system comprises a second propulsion main engine, a second reduction gear box with a clutch, a second transmission shaft and a second propeller which are connected in sequence; the second propelling main machine and the first transmission shaft are oppositely arranged, projection is carried out in the length direction of the sheet body, and the projection of the first propelling main machine and the projection of the second propelling main machine partially coincide. According to the utility model, the propulsion system can be smoothly arranged on the sheet body with a relatively narrow width.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to a high-speed catamaran. Background Art

[0002] A high-speed catamaran is a ship that is made up of two monohulls that are laterally connected. Modern high-performance catamarans mainly include four categories: wave-piercing catamarans, high-speed catamarans, and composite catamarans. High-speed catamarans are one of the fastest-growing catamarans today. The appearance of a typical high-speed catamaran is composed of two slender monohulls (called hulls), which are connected by a deck on the upper part. The hulls are equipped with power units, power stations and other equipment. The upper part of the deck is equipped with a superstructure, which contains cabins and living facilities.

[0003] In order to control the displacement volume of high-speed catamarans and increase the sailing speed, the width of the hull tends to be narrowed in the ship line design. However, the narrower the width of the hull, the more difficult it is to install the four-engine propulsion system. Utility Model Content

[0004] The utility model aims to provide a high-speed catamaran, which can realize the smooth loading of a four-engine propulsion system on a high-speed catamaran with a narrow hull.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A high-speed catamaran comprises two panels, which are arranged symmetrically on both sides. Each panel is provided with a first propulsion system and a second propulsion system which are arranged in sequence along the width direction of the panel. The first propulsion system comprises a first propulsion main engine, a first clutch reduction gearbox, a first transmission shaft and a first propeller which are connected in sequence along the length direction of the panel. The second propulsion system comprises a second propulsion main engine, a second clutch reduction gearbox, a second transmission shaft and a second propeller which are connected in sequence along the length direction of the panel. The second propulsion main engine is arranged opposite to the first transmission shaft, and the projection of the first propulsion main engine and the projection of the second propulsion main engine partially overlap when projected along the length direction of the panel.

[0007] As a preferred solution of the above-mentioned high-speed catamaran, the first propulsion system further includes an external fire pump, and the external fire pump is connected to a free end of the first propulsion main engine.

[0008] As a preferred solution of the above-mentioned high-speed catamaran, the first propulsion system further includes a seawater filter, and the seawater filter is arranged at the water inlet of the external fire pump.

[0009] As a preferred solution of the above-mentioned high-speed catamaran, the first propulsion system further includes a first elastic bracket, and the first propulsion main engine is installed on the sheet body through the first elastic bracket.

[0010] As a preferred embodiment of the high-speed catamaran, the body is provided with an engine room and a propeller room separated by a watertight bulkhead, the first propeller and the second propeller are partially located in the propeller room, the first propulsion main engine, the first clutch reduction gearbox, the second propulsion main engine and the second clutch reduction gearbox are all located in the engine room, and the first transmission shaft and the second transmission shaft are both arranged through the watertight bulkhead.

[0011] As a preferred solution of the above-mentioned high-speed catamaran, a first bulkhead sealing device is sleeved on the first transmission shaft and the first bulkhead sealing device is in sealing contact with the watertight bulkhead; and / or

[0012] A second compartment sealing device is sleeved on the second transmission shaft and the second compartment sealing device is in sealing contact with the watertight bulkhead.

[0013] As a preferred solution of the above-mentioned high-speed catamaran, a first elastic coupling is connected between the first propulsion main engine and the first clutch reduction gearbox; and / or

[0014] A second elastic coupling is connected between the second propulsion main engine and the second clutch reduction gearbox.

[0015] As a preferred solution of the above-mentioned high-speed catamaran, a bearing is sleeved on the first transmission shaft, and the bearing is installed in a bearing seat on the sheet body.

[0016] As a preferred solution of the above-mentioned high-speed catamaran, the first propulsion system is arranged close to the inner side of the sheet body, and the second propulsion system is arranged close to the outer side of the sheet body.

[0017] Beneficial effects of the utility model:

[0018] The high-speed catamaran proposed in the utility model comprises two first propulsion systems and two second propulsion systems, which together form a propulsion system of the high-speed catamaran, and the propulsion system is a four-engine propulsion system. When the first propulsion system and the second propulsion system are arranged on each sheet, the first propulsion system and the second propulsion system are arranged left and right along the width direction of the sheet; because the second propulsion main engine is arranged opposite to the first transmission shaft, the projection of the first propulsion main engine and the projection of the second propulsion main engine partially overlap along the length direction of the sheet, and the first propulsion main engine and the second propulsion main engine are not arranged side by side left and right, but are arranged staggered along the length direction of the sheet; and the projection of the first propulsion main engine and the projection of the second propulsion main engine partially overlap along the length direction of the sheet, that is, the transmission shafts of the first clutch reduction gearbox and the second clutch reduction gearbox adopt a diagonal staggered structure input and output to meet the width requirements of the first propeller and the second propeller, so that the space occupied by the first propulsion system and the second propulsion system along the width direction of the sheet is small, so as to adapt to the sheet with narrow width. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0020] Figure 1 This is a side view of the propulsion system of the high-speed catamaran provided in the first embodiment of the utility model after the arrangement is completed;

[0021] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0022] Figure 3 This is a top view of the propulsion system of the high-speed catamaran provided in the first embodiment of the utility model after the arrangement is completed;

[0023] Figure 4 It is a schematic diagram of a propulsion system on a sheet provided in the first embodiment of the utility model after arrangement is completed;

[0024] Figure 5 yes Figure 4 Enlarged view of point B in the middle.

[0025] In the figure:

[0026] 10, hull; 101, engine room; 102, thruster compartment; 103, watertight bulkhead;

[0027] 20. First propulsion system; 201. First propulsion main engine; 202. First clutch reduction gearbox; 203. First transmission shaft; 2031. First compartment sealing device; 2032. Bearing; 204. First propeller; 205. External fire pump; 206. Seawater filter; 207. First elastic bracket; 208. First elastic coupling;

[0028] 30. Second propulsion system; 301. Second propulsion main engine; 302. Second reduction gearbox with clutch; 303. Second transmission shaft; 3031. Second compartment sealing device; 304. Second propeller; 305. Second elastic coupling. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] Embodiment 1

[0037] High-speed catamarans are displacement ships. Whether they are stationary or sailing, they rely on the Archimedean static buoyancy to support their floating. Compared with "powered sailing" high-performance ships such as planing boats and hydrofoil boats, high-speed catamarans have relatively simple technology and construction processes. They are also safe and reliable to use, easy to repair and maintain, and have low costs. Therefore, high-speed catamarans are the most built and fastest growing type of high-performance ships.

[0038] In the design of high-speed catamarans, in order to control the displacement volume of the ship and increase the sailing speed, the width of the hull tends to be narrowed in the ship's line design.

[0039] In the prior art, the four propellers of the four-engine propulsion system of a high-speed catamaran are arranged in parallel in sequence along the width direction of the ship; this results in that the narrower the width of the catamaran, the more difficult it is to carry the four-engine propulsion system.

[0040] In order to solve the above problems, this embodiment provides a high-speed catamaran.

[0041] See also Figure 1-Figure 5 In this embodiment, the high-speed catamaran includes two panels 10, and the two panels 10 are arranged symmetrically.

[0042] Each sheet body 10 is provided with a first propulsion system 20 and a second propulsion system 30 which are arranged in sequence along the width direction of the sheet body 10 .

[0043] Specifically, the two first propulsion systems 20 and the two second propulsion systems 30 together form a propulsion system for the high-speed catamaran, which is a four-engine propulsion system.

[0044] The first propulsion system 20 includes a first propulsion host 201, a first clutch reduction gearbox 202, a first transmission shaft 203, and a first propeller 204, which are sequentially connected along the length direction of the sheet body 10. The second propulsion system 30 includes a second propulsion host 301, a second clutch reduction gearbox 302, a second transmission shaft 303, and a second propeller 304, which are sequentially connected along the length direction of the sheet body 10. The second propulsion host 301 is arranged opposite to the first transmission shaft 203, and the projection of the first propulsion host 201 and the projection of the second propulsion host 301 partially overlap along the length direction of the sheet body 10.

[0045] Optionally, in this embodiment, the power of the first propulsion main engine 201 and the second propulsion main engine 301 are both 2500 kW.

[0046] The high-speed catamaran provided in this embodiment, the two first propulsion systems 20 and the two second propulsion systems 30 together form a propulsion system of the high-speed catamaran, and the propulsion system is a four-engine propulsion system.

[0047] When the first propulsion system 20 and the second propulsion system 30 are arranged on each sheet 10, the first propulsion system 20 and the second propulsion system 30 are arranged left and right along the width direction of the sheet 10; because the second propulsion host 301 is arranged opposite to the first transmission shaft 203, when projected along the length direction of the sheet 10, the projection of the first propulsion host 201 and the projection of the second propulsion host 301 partially overlap, instead of adopting the mode of arranging the first propulsion host 201 and the second propulsion host 301 side by side left and right, the first propulsion host 201 and the second propulsion host 301 are arranged staggered along the length direction of the sheet 10; and when projected along the length direction of the sheet 10, the projection of the first propulsion host 201 and the projection of the second propulsion host 301 partially overlap, so that the space occupied by the first propulsion system 20 and the second propulsion system 30 along the width direction of the sheet 10 is small, so as to adapt to the sheet 10 with a narrower width.

[0048] That is, by adopting the structure of the high-speed catamaran provided in this embodiment, even if the width of the sheet body 10 is narrowed, the four-engine propulsion system can be smoothly arranged.

[0049] Specifically, in this embodiment, the first propulsion system 20 is disposed close to the inner side of the sheet body 10 , and the second propulsion system 30 is disposed close to the outer side of the sheet body 10 .

[0050] Specifically, in this embodiment, the first clutch reduction gearbox 202 and the second clutch reduction gearbox 302 are both gear clutch reduction gearboxes. The gear clutch reduction gearbox is an independent closed transmission device between the prime mover and the working machine, which is used to reduce the speed and increase the torque to meet the working needs.

[0051] The input shaft and output shaft of the gear belt clutch reduction gearbox are eccentrically arranged. More specifically, in this embodiment, the input shaft and output shaft of the gear belt clutch reduction gearbox are staggered along the width direction of the sheet body 10. Such an arrangement enables the first transmission shaft 203 to fully avoid the installation position of the second propulsion main engine 301, and also enables the second transmission shaft 303 to fully avoid the first propeller 204, thereby ensuring the smooth installation of the propulsion system and the compactness of the arrangement.

[0052] At the same time, in this embodiment, the first clutch reduction gearbox 202 and the second clutch reduction gearbox 302 are both gear clutch reduction gearboxes, and the input shaft and output shaft of the gear clutch reduction gearbox are not only staggered in the horizontal direction (the horizontal direction is parallel to the width direction of the sheet 10), but also staggered in the vertical direction.

[0053] The input shaft and the output shaft of the gear clutch reduction gearbox are staggered in the horizontal direction, which can make the distance between the first propulsion host 201 and the second propulsion host 301 in the width direction of the sheet body 10 closer, providing an absolute advantage for narrowing the sheet body 10, and also reserving space for equipment repair and maintenance, and fully reserving escape and fire escape passages.

[0054] Furthermore, in the present embodiment, the input shaft and the output shaft of the gear-clutch reduction gearbox are staggered in the vertical direction, and the input shaft is relatively high, so that the input axis lines of the first clutch reduction gearbox 202 and the second clutch reduction gearbox 302 are raised in the vertical direction, so that the installation height of the first propulsion main engine 201 can also be raised, and the installation height of the second propulsion main engine 301 can also be raised, thereby avoiding interference between the bottom shell of the first propulsion main engine 201 and the bottom shell of the second propulsion main engine 301 and the hull structure of the high-speed catamaran.

[0055] The provision of the first clutch reduction gearbox 202 enables the first propulsion main engine 201 to be installed at a higher height, thereby reserving sufficient height space for the installation base of the first propulsion main engine 201, so that the strength of the installation base of the first propulsion main engine 201 meets the design requirements.

[0056] Similarly, the provision of the second clutch reduction gearbox 302 enables the second propulsion main engine 301 to be installed at a higher height, thereby reserving sufficient height space for the installation base of the second propulsion main engine 301, so that the strength of the installation base of the second propulsion main engine 301 meets the design requirements.

[0057] Optionally, in this embodiment, the first transmission shaft 203 and the second transmission shaft 303 are both elastic shafts. The elastic shaft is usually composed of two guide rings with fixed ends and an elastic element in the middle.

[0058] Compared with a rigid shaft, an elastic shaft is a shaft with a certain elastic deformation, which can slow down or offset the vibration and impact in the propulsion system.

[0059] Furthermore, in this embodiment, a bearing 2032 is sleeved on the first transmission shaft 203 , and the bearing 2032 is installed on a bearing seat on the sheet body 10 .

[0060] It should be noted that, in this embodiment, the axial dimension of the first transmission shaft 203 is relatively longer than the axial dimension of the second transmission shaft 303, and the first transmission shaft 203 includes two coaxially arranged elastic shafts, and the two elastic shafts are connected by an elastic coupling. In order to stably support the first transmission shaft 203, a bearing 2032 is arranged on the elastic coupling. Further, the bearing 2032 is a cooling-free ball bearing, and a bearing seat matched with the bearing 2032 is arranged on the sheet body 10.

[0061] Specifically, in this embodiment, the first propeller 204 and the second propeller 304 are both water jet propellers.

[0062] A water jet propulsion system is a type of propulsion system that uses the reaction force of the jet water flow to drive the ship forward. It is composed of a water pump, pipes, suction ports, and nozzles, and can change the direction of the water flow through the nozzles to achieve ship control.

[0063] Furthermore, in this embodiment, the first propulsion system 20 further includes an external fire pump 205 , which is connected to a free end of the first propulsion main engine 201 . The external fire pump 205 is driven by the first propulsion main engine 201 .

[0064] Furthermore, the first propulsion system 20 also includes a seawater filter 206 , which is disposed at a water inlet of the external fire pump 205 .

[0065] The seawater filter 206 can effectively filter garbage in the seawater to ensure the normal operation of the external fire pump 205.

[0066] More specifically, the seawater filter 206 is in a right-angle form, and the filter element is directly connected to the seabed door, which is conducive to flushing the sucked garbage back to the sea.

[0067] In this embodiment, the first propulsion main engine 201 drives the external fire pump 205, so that the water suction port of the external fire pump 205 is far away from the water suction port of the first propeller 204 and the water suction port of the second propeller 304, so as to avoid interference with the water suction of the second propeller 304 and reduce the effectiveness of the four-machine propulsion system and the life of the second propeller 304.

[0068] In this embodiment, the external fire pump 205 is driven by the first propulsion main engine 201 located on the inner side of the sheet body 10. When the two external fire pumps 205 are running, the inner first propulsion main engine 201 does not participate in the propulsion of the ship, and provides sufficient load for the external fire pump 205. The ship is manipulated using the remaining two propulsion systems on the outer side (i.e., two second propulsion systems 30). Since the two outer side propulsion systems are located at the far right and far left sides of the ship, the ship's operability and maneuverability are made more powerful.

[0069] For example, Figure 3 Taking the orientation shown as an example, the upper sheet 10 is the left sheet, the lower sheet is the right sheet, the upper second propulsion system 30 is located at the far left of the ship, and the lower second propulsion system 30 is located at the far right of the ship.

[0070] Furthermore, in this embodiment, an elastic connection is adopted between the input shaft of the external fire pump 205 and the first propulsion main engine 201, an elastic connection is adopted between the input shaft of the external fire pump 205 and its water inlet, and an elastic connection is adopted between the water outlet of the external fire pump 205 and the seawater filter 206, so as to reduce the vibration and noise of the propulsion system.

[0071] Furthermore, in this embodiment, the first propulsion system 20 further includes a first elastic bracket 207 , and the first propulsion main unit 201 is mounted on the sheet body 10 via the first elastic bracket 207 .

[0072] The first elastic bracket 207 has a shock absorbing function. The first propulsion host 201 is installed on the sheet body 10 through the first elastic bracket 207. The mechanical vibration of the first propulsion host 201 can be physically isolated by the first elastic bracket 207, thereby reducing the vibration and noise transmitted from the first propulsion host 201 to the sheet body 10.

[0073] Similarly, the second propulsion system further includes a second elastic bracket, through which the second propulsion host 301 is mounted on the sheet body 10. The second elastic bracket has a shock-absorbing function, and the second propulsion host 301 is mounted on the sheet body 10 through the second elastic bracket. The mechanical vibration of the second propulsion host 301 can be physically isolated by the second elastic bracket, thereby reducing the vibration and noise transmitted from the second propulsion host 301 to the sheet body 10.

[0074] Specifically, the first elastic bracket 207 is arranged on the mounting base of the first propulsion main engine 201 ; the second elastic bracket is arranged on the mounting base of the second propulsion main engine 301 .

[0075] For example, see Figure 1 and Figure 2 In this embodiment, the first elastic bracket 207 includes a first lower mounting plate and a first upper mounting plate which are spaced apart from each other, a first elastic member is arranged between the first lower mounting plate and the first upper mounting plate, the first lower mounting plate is fixedly mounted on the mounting base of the first propulsion host 201, and the first propulsion host 201 is mounted on the first upper mounting plate; each first propulsion host 201 is configured with at least four first elastic brackets 207, and each corner of the first propulsion host 201 is provided with at least one first elastic bracket 207.

[0076] Similarly, the second elastic bracket has the same structure as the first elastic bracket 207. The second elastic bracket includes a second lower mounting plate and a second upper mounting plate spaced apart from each other, a second elastic member is disposed between the second lower mounting plate and the second upper mounting plate, the second lower mounting plate is fixedly mounted on the mounting base of the second propulsion host 301, and the second propulsion host 301 is mounted on the second upper mounting plate; each second propulsion host 301 is configured with at least four second elastic brackets, and each corner of the second propulsion host 301 is provided with at least one second elastic bracket.

[0077] Specifically, in this embodiment, a cabin 101 and a propeller cabin 102 separated by a watertight bulkhead 103 are provided in the sheet body 10, the first propeller 204 and the second propeller 304 are partially located in the propeller cabin 102, the first propulsion main engine 201, the first clutch reduction gearbox 202, the second propulsion main engine 301 and the second clutch reduction gearbox 302 are all located in the cabin 101, and the first transmission shaft 203 and the second transmission shaft 303 are both arranged through the watertight bulkhead 103.

[0078] Further, a first compartment sealing device 2031 is sleeved on the first transmission shaft 203 and the first compartment sealing device 2031 is in sealing contact with the watertight bulkhead 103; and / or

[0079] The second transmission shaft 303 is sleeved with a second bulkhead sealing device 3031 , and the second bulkhead sealing device 3031 is in sealing contact with the watertight bulkhead 103 .

[0080] More specifically, in this embodiment, a first compartment sealing device 2031 is sleeved on the first transmission shaft 203 and the first compartment sealing device 2031 is sealed against the watertight bulkhead 103 , and at the same time, a second compartment sealing device 3031 is sleeved on the second transmission shaft 303 and the second compartment sealing device 3031 is sealed against the watertight bulkhead 103 .

[0081] More specifically, in this embodiment, the first compartment sealing device 2031 and the second compartment sealing device 3031 are both ship compartment sealing devices. Further preferably, the ship compartment sealing device is a cooling-free shafting compartment sealing device. The first compartment sealing device 2031 and the second compartment sealing device 3031 are both located in the thruster compartment 102.

[0082] The first transmission shaft 203 with a compensation function, in combination with the first compartment sealing device 2031 and the bearing 2032, can ensure that the first transmission shaft 203 operates more stably.

[0083] Specifically, in this embodiment, a first elastic coupling 208 is connected between the first propulsion main engine 201 and the first clutch reduction gearbox 202; and / or

[0084] A second elastic coupling 305 is connected between the second propulsion main engine 301 and the second clutch reduction gearbox 302 .

[0085] More specifically, in this embodiment, a first elastic coupling 208 is connected between the first propulsion main engine 201 and the first clutch reduction gearbox 202 , and a second elastic coupling 305 is connected between the second propulsion main engine 301 and the second clutch reduction gearbox 302 .

[0086] The first elastic coupling 208 and the second elastic coupling 305 both have a certain compensation capability.

[0087] The elastic coupling is an integrally formed metal, usually cut from round bars. Commonly used materials include aluminum alloy, stainless steel and engineering plastics. It is suitable for various deviations and precise transmission.

[0088] Compared with rigid couplings, elastic couplings have simple structures, are easy to install, and do not require precise axial and radial dimensions. Elastic couplings have good ability to compensate for axial and radial displacements, and can alleviate the vibration and noise of the propulsion system during operation; at the same time, elastic couplings have good ability to absorb and alleviate shocks, and can reduce the vibration and shock generated by mechanical equipment during operation.

[0089] In this embodiment, the mechanical vibration of the first propulsion main engine 201 can be physically isolated by the first elastic coupling 208, thereby reducing the mechanical vibration transmitted from the first propulsion main engine 201 to the first clutch reduction gearbox 202. At the same time, the first elastic coupling 208 can compensate for the amplitude caused by the first elastic bracket 207 of the first propulsion main engine 201.

[0090] Similarly, in this embodiment, the mechanical vibration of the second propulsion main engine 301 can be physically isolated by the second elastic coupling 305, thereby reducing the mechanical vibration transmitted from the second propulsion main engine 301 to the second clutch reduction gearbox 302. At the same time, the second elastic coupling 305 can compensate for the amplitude caused by the second elastic bracket of the second propulsion main engine 301.

[0091] In the high-speed catamaran provided in this embodiment, the output end of the first clutch reduction gearbox 202 is connected to the first propeller 204 through the first transmission shaft 203. Since the first transmission shaft 203 is an elastic straight shaft with a compensation function, the efficiency and noise control of the straight shaft are absolutely superior to those of the traditional universal shaft. Similarly, the output end of the second clutch reduction gearbox 302 is connected to the second propeller 304 through the second transmission shaft 303. Since the second transmission shaft 303 is an elastic straight shaft with a compensation function, the efficiency and noise control of the straight shaft are absolutely superior to those of the traditional universal shaft.

[0092] The high-speed catamaran provided in this embodiment has a propulsion system arrangement that can also be widely used on other ships, bringing more development opportunities to the field of ship design.

[0093] Embodiment 2

[0094] This embodiment provides a method for arranging a propulsion system of a high-speed catamaran.

[0095] The method for arranging a propulsion system of a high-speed catamaran is used to arrange a propulsion system on the hull of the high-speed catamaran in the first embodiment. The method for arranging a propulsion system of a high-speed catamaran comprises the following steps:

[0096] The first propulsion system 20 and the second propulsion system 30 are sequentially arranged along the width direction of the sheet body 10;

[0097] When arranging the first propulsion system 20, the first propulsion main engine 201, the first clutch reduction gearbox 202, the first transmission shaft 203 and the first propeller 204 are sequentially connected along the length direction of the sheet body 10;

[0098] When arranging the second propulsion system 30, the second propulsion host 301, the second clutch reduction gearbox 302, the second transmission shaft 303 and the second propeller 304 are connected in sequence along the length direction of the sheet body 10, and at the same time, the second propulsion host 301 is arranged opposite to the first transmission shaft 203, projected along the length direction of the sheet body 10, and the projection of the first propulsion host 201 and the projection of the second propulsion host 301 partially overlap.

[0099] By adopting the method for arranging the propulsion system of a high-speed catamaran provided in this embodiment, it is possible to successfully complete the arrangement of the four-engine propulsion system under the premise of narrowing the width of the hull 10 of the high-speed catamaran.

[0100] Two first propulsion systems 20 and two second propulsion systems 30 together form a propulsion system for a high-speed catamaran, which is a four-engine propulsion system. When arranging the propulsion system on the high-speed catamaran, when arranging the first propulsion system 20 and the second propulsion system 30 on each sheet 10, the first propulsion system 20 and the second propulsion system 30 are arranged left and right along the width direction of the sheet 10; because the second propulsion main engine 301 is arranged opposite to the first transmission shaft 203, the projection of the first propulsion main engine 201 and the projection of the second propulsion main engine 301 partially overlap along the length direction of the sheet 10, instead of adopting the mode of arranging the first propulsion main engine 201 and the second propulsion main engine 301 side by side left and right, the first propulsion main engine 201 and the second propulsion main engine 301 are arranged in a staggered manner along the length direction of the sheet 10; and the projection of the first propulsion main engine 201 and the projection of the second propulsion main engine 301 partially overlap along the length direction of the sheet 10, so that the space occupied by the first propulsion system 20 and the second propulsion system 30 along the width direction of the sheet 10 is small, so as to adapt to the sheet 10 with a narrow width.

[0101] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A high-speed catamaran, comprising two panels (10), wherein the two panels (10) are arranged symmetrically, and characterized in that: Each of the sheet bodies (10) is provided with a first propulsion system (20) and a second propulsion system (30) which are sequentially arranged along the width direction of the sheet body (10); the first propulsion system (20) comprises a first propulsion main machine (201), a first clutch reduction gearbox (202), a first transmission shaft (203) and a first propeller (204) which are sequentially connected along the length direction of the sheet body (10); the second propulsion system (30) comprises a second propulsion main machine (301), a second clutch reduction gearbox (302), a second transmission shaft (303) and a second propeller (304) which are sequentially connected along the length direction of the sheet body (10); the second propulsion main machine (301) is arranged opposite to the first transmission shaft (203); and when projected along the length direction of the sheet body (10), the projection of the first propulsion main machine (201) and the projection of the second propulsion main machine (301) partially overlap.

2. The high-speed catamaran according to claim 1, characterized in that: The first propulsion system (20) further comprises an external fire pump (205), wherein the external fire pump (205) is connected to a free end of the first propulsion main engine (201).

3. The high-speed catamaran according to claim 2, characterized in that: The first propulsion system (20) further comprises a seawater filter (206), wherein the seawater filter (206) is arranged at the water inlet of the external fire-fighting pump (205).

4. The high-speed catamaran according to claim 1, characterized in that: The first propulsion system (20) further comprises a first elastic bracket (207), and the first propulsion main unit (201) is mounted on the sheet body (10) via the first elastic bracket (207).

5. The high-speed catamaran according to claim 1, characterized in that: The sheet body (10) is provided with a cabin (101) and a propeller cabin (102) separated by a watertight bulkhead (103); the first propeller (204) and the second propeller (304) are both partially located in the propeller cabin (102); the first propulsion main engine (201), the first clutch reduction gearbox (202), the second propulsion main engine (301) and the second clutch reduction gearbox (302) are all located in the cabin (101); the first transmission shaft (203) and the second transmission shaft (303) are both arranged through the watertight bulkhead (103).

6. The high-speed catamaran according to claim 5, characterized in that: The first transmission shaft (203) is sleeved with a first compartment sealing device (2031), and the first compartment sealing device (2031) is in sealing contact with the watertight bulkhead (103); and / or The second transmission shaft (303) is sleeved with a second compartment sealing device (3031), and the second compartment sealing device (3031) is in sealing contact with the watertight bulkhead (103).

7. The high-speed catamaran according to claim 1, characterized in that: A first elastic coupling (208) is connected between the first propulsion main engine (201) and the first clutch reduction gearbox (202); and / or A second elastic coupling (305) is connected between the second propulsion main engine (301) and the second clutch reduction gearbox (302).

8. The high-speed catamaran according to claim 1, characterized in that: A bearing (2032) is sleeved on the first transmission shaft (203), and the bearing (2032) is mounted on a bearing seat on the sheet body (10).

9. The high-speed catamaran according to any one of claims 1 to 8, characterized in that: The first propulsion system (20) is arranged close to the inner side of the sheet body (10), and the second propulsion system (30) is arranged close to the outer side of the sheet body (10).

Images