Electric propulsion device of scientific investigation ship

Abstract

The invention discloses an electric propulsion device of a scientific investigation ship, which comprises an electric propeller, the electric propeller comprises a suspension fixing system, the electric propeller further comprises a full-electric propulsion system, and the full-electric propulsion system comprises a generator set arranged in a cabin and a motor serving as a propulsion power device of a paddle. The suspension fixing system comprises a fixing shell, the fixing shell comprises a shell body and fixing plates arranged on the bottom face of the rear end of the shell body, a gear transmission mechanism is installed between the fixing plates, and the gear transmission mechanism comprises a connecting shaft, a rotating wheel, a gear, a pushing block and an operating handle. The structure of electric propulsion of the two steering oars and electric propulsion of the two side thrusters is adopted, the propulsion efficiency of the oars is improved, the cabin space utilization rate is increased, the number of equipment is reduced, and therefore the maintenance workload is reduced, energy efficiency is high, noise is reduced, waste gas emission is reduced, and environment protection is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of marine technology, in particular to a scientific research ship electric propulsion device. BACKGROUND

[0002] The scientific research ship refers to a ship used for investigating and researching special tasks such as marine hydrology, geology, weather, biology, etc.

[0003] However, the existing scientific research ship has the following technical problems and defects: The use of traditional propulsion method, i.e. diesel engine through long shafting, results in low utilization rate of cabin space and reduced effective load; The engine room of diesel engine has large vibration, high noise, and much oil pollution, and the exhaust emission affects air quality and sanitary conditions; The main engine is large and high, which increases the difficulty and workload of maintenance; The wide and broad deadwood and side thrust hole, as well as the multi-point support A-frame at the tail greatly increase the appendage resistance of the ship, which greatly affects the rapidity of the ship; The small ship size limits the diameter of the propeller, which affects the propulsion efficiency; The existing ship electric propulsion device in the market, the suspension fixing system realizes clamping the ship electric propulsion device on the scientific research ship by manually operating screws respectively, and the clamping operation stability and convenience need to be improved. SUMMARY

[0004] (I) Technical problems to be solved In order to overcome the shortcomings of the prior art, the present application provides a scientific research ship electric propulsion device.

[0005] (II) Technical scheme The present application realizes the following technical scheme: the present application provides a scientific research ship electric propulsion device, which comprises an electric propulsion device, the electric propulsion device comprises a suspension fixing system, the suspension fixing system comprises a fixed shell, the electric propulsion device further comprises an all-electric propulsion system, the all-electric propulsion system comprises a generator set arranged in a cabin and an electric motor as a propeller propulsion power device, the fixed shell comprises a shell main body and a fixed plate arranged at the bottom surface of the rear end of the shell main body, a gear transmission mechanism is installed between the fixed plates, the gear transmission mechanism comprises a connecting shaft, a runner, a gear, a push block and an operating handle, the connecting shaft comprises a connecting shaft one and a connecting shaft two which are connected in an up-down shaft mode between the fixed plates, the runner is shaft-connected to the connecting shaft one, the gear is shaft-connected to the connecting shaft two, the push block is engaged with the gear at the bottom surface and is in transmission with the runner at the top surface, an integral rod is arranged at the front end of the push block, a chuck is arranged at the front end of the integral rod, and the operating handle is installed at the outer end of the connecting shaft one.

[0006] The ship propeller is two sets of full-rotation rudder propellers, each set of full-rotation rudder propeller is provided with a front propeller and a rear propeller, and the rotating directions of the front propeller and the rear propeller are opposite.

[0007] Two side thrusters are further included, the two side thrusters are installed on the bow of the ship, and the generator set is composed of three generators.

[0008] The fixed plate comprises a fixed plate one and a fixed plate two, and a protrusion is arranged on the outer side of the fixed plate two.

[0009] The rotating wheel comprises a rotating wheel one and a rotating wheel two, the pushing block comprises a pushing block one and a pushing block two, and wheel grooves for transmission of the rotating wheel one and the rotating wheel two are respectively formed in the top surfaces of the pushing block one and the pushing block two.

[0010] The gear comprises a gear one and a gear two, and the bottom surfaces of the pushing block one and the pushing block two are respectively provided with gear teeth for meshing with the gear one and the gear two.

[0011] The two ends of the connecting shaft one and one end of the connecting shaft two respectively pass through the fixed plate one and the fixed plate two and are provided with shaft plates, the other end of the connecting shaft two passes through the fixed plate two and is arranged with a thread between the connecting shaft two and the operating handle, and a fixed nut is arranged on the thread.

[0012] A mounting ring of the electric propeller is further included, one end of the mounting ring is provided with a clamping plate in an integral structure, a top clamping plate is arranged on the top shell and clamped on the outer side of the clamping plate, and the top clamping plate is fixed by bolts and nuts.

[0013] The operating handle comprises a fixed ring fixed to the rear end of the connecting shaft one and a handle body arranged on the fixed ring, and a circular ring is arranged on the outer end of the handle body.

[0014] (Three) beneficial effects Compared with the prior art, the application has the following beneficial effects: the manual operation gear transmission mechanism is used to replace the two screws in the existing market to clamp the electric propeller on the research ship, the operation is convenient, the clamping stability and convenience are improved, and the use efficiency is improved.

[0015] The application adopts the structure of two rudder propeller electric propulsion and two side thrust electric propulsion, improves the propulsion efficiency of the ship propeller, increases the utilization rate of the cabin space, reduces the number of equipment, thereby reducing the maintenance workload, has high energy efficiency, reduces noise, reduces waste gas emission, and is beneficial to environmental protection.

[0016] The gear transmission mechanism is adopted, the shafts mounted on the shaft body two are rotated by manually operating the operating handle, the movement of the pushing block one and the pushing block two is meshed, the rotating wheel one and the rotating wheel two mounted on the shaft body one are driven in the wheel groove, and the stability and convenience of the movement of the pushing block are improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is the structural schematic diagram of the invention; Figure 2 is the structural schematic diagram of the fixed shell; Figure 3 is the structural schematic diagram of the gear transmission mechanism; Figure 4 is the structural schematic diagram of the operating handle; Figure 5 is the structural schematic diagram of the mounting ring; Figure 6 is the assembly structural schematic diagram of the gear one, gear two and connecting shaft two; Figure 7 is the assembly structural schematic diagram of the rotating wheel one, rotating wheel two and connecting shaft one; The reference signs are explained as follows: suspension fixing system 1, fixed shell 2, shell body 21, top shell 22, front shell 23, fixed plate one 25, fixed plate two 26, protruding block 27, gear transmission mechanism 3, connecting shaft one 31, connecting shaft two 32, shaft plate 33, screw thread 34, fixed nut 35, rotating wheel one 36, rotating wheel two 37, gear one 38, gear two 39, pushing block one 40, pushing block two 41, integrated rod 43, chuck 44, anti-skid rubber pad 45, operating handle 5, fixed ring 51, handle body 52, circular ring 53, mounting ring 6, clamping plate 61, top clamping plate 62, bolt 63, nut 64. DETAILED DESCRIPTION EMBODIMENT

[0018] As shown in the embodiment, a power propulsion device of a scientific research ship is provided, which comprises a power propeller. Figures 1-7

[0019] The application has the following innovative points: two sets of full-rotation rudders are provided as the main propeller, each set of full-rotation rudders is provided with a front propeller and a rear propeller, the rotating directions of the front propeller and the rear propeller are opposite, forming a counter-rotating propeller system, the flow field behind the front propeller is the flow field in front of the rear propeller, so that the flow field in front of the rear propeller is opposite to the rotating direction thereof, a pre-rotation effect is generated, and the propelling efficiency of the propeller is greatly improved; a side thruster is arranged at the bow of the ship; two 1471kW motors are used as the propelling motors of each set of full-rotation rudders.

[0020] Three generators are arranged in the engine room of the ship for power supply, and the power and propelling system of the whole ship is powered by the three generators, thereby forming a full-electric propulsion system.

[0021] ​The scientific research ship adopts full electric propulsion, compared with the traditional propulsion, has the following advantages: first, using full electric propulsion is conducive to the scientific research ship to save space. Compared with the old propulsion, the full electric propulsion ship has no transmission shaft and many gears. On a general ship, the length of the transmission shaft often accounts for two-fifths of the total length of the ship. By canceling these devices, the inside of the ship will be empty a lot of space. This can not only install more equipment, but also leave room for future modification. Moreover, a scientific research ship can be truly assembled like Lego blocks, that is, we often say "modular" construction. Second, it is conducive to making the operation of the scientific research ship more easy. The automatic degree of the ship using electric propulsion is further improved, which benefits from the superiority of electronic terminal control. It is like an electric car, the starting speed is always faster than the oil car, which is conducive to the flexibility of the scientific research ship on the sea.

[0022] The scientific research ship is equipped with a full-revolution rudder propeller, which serves as the main propulsion in the normal navigation state and replaces the tail side thrust in the dynamic positioning state. It not only can provide lateral thrust, but also can greatly increase the flexibility of operation and improve the utilization rate of equipment.

[0023] The scientific research ship is equipped with two counter-rotating propellers, which greatly improve the propelling efficiency of the propeller. Research shows that the counter-rotating mode between the front propeller and the rear propeller can save about 10% of energy. Moreover, the power originally allocated to one propeller is now distributed to two propellers, which also greatly improves the propelling efficiency of the propeller.

[0024] The second innovation of the application is that the fixed shell 2 includes a shell body 21 and a fixed plate arranged on the bottom surface of the rear end of the shell body 21, the fixed plate includes a fixed plate one 25 and a fixed plate two 26, and a protrusion 27 is arranged on the outer side surface of the fixed plate two 26. A gear transmission mechanism 3 is installed between the fixed plates, which facilitates manual rotation of the operating handle 5, simultaneously rotates the gear one 38 and the gear two 39 in the same direction, and realizes the pushing of the pushing block one 40 and two, respectively. The gear transmission mechanism 3 includes a connecting shaft, a rotating wheel, a gear, a pushing block, and an operating handle 5. The connecting shaft includes a connecting shaft one 31 and a connecting shaft two 32 which are connected in an up-down shaft between the fixed plates. The rotating wheel shaft is arranged on the connecting shaft one 31, the gear shaft is arranged on the connecting shaft two 32, the bottom surface of the pushing block is engaged with the gear, the top surface is in transmission with the rotating wheel, the front end of the pushing block is provided with an integrated rod 43, the front end of the integrated rod 43 is provided with a chuck 44, and the chuck 44 can be bonded with a circular anti-slip rubber, thereby increasing the clamping firmness. The fixed shell 2 includes a top shell 22 and a front shell 23 which is arranged as an integral structure with the top shell 22, and an anti-slip rubber pad 45 is bonded on the inner side surface of the front shell 23, thereby increasing the clamping firmness. The operating handle 5 is installed on the outer end of the connecting shaft one 31. The operating handle 5 includes a fixed ring 51 fixed on the rear end of the connecting shaft two 32 and a handle body 52 arranged on the fixed ring 51, and a circular ring 53 is arranged on the outer end of the handle body 52. It is convenient for manual operation.

[0025] The rotating wheels include rotating wheel one 36 and rotating wheel two 37, and the pushing blocks include pushing block one 40 and pushing block two 41, and the top surfaces of the pushing block one 40 and the pushing block two 41 are respectively provided with wheel grooves (not marked in the figure) for driving the rotating wheel one 36 and the rotating wheel two 37. The gears include gear one 38 and gear two 39, and the bottom surfaces of the pushing block one 40 and the pushing block two 41 are provided with gear teeth for engaging the gear one 38 and the gear two 39. The engagement pushing of the pushing block one 40 and the pushing block two 41 is realized. The two ends of the connecting shaft one 31 and one end of the connecting shaft two 32 respectively pass through the fixed plate one 25 and the fixed plate two 26 and are provided with the shaft plate 33, so as to facilitate the shaft rotation of the connecting shaft one 31 and the connecting shaft two 32. The other end of the connecting shaft two 32 passes through the fixed plate two 26 and is arranged with the screw thread 34 between the fixed plate two 26 and the operating handle 5, and the fixed nut 35 is installed on the screw thread 34. The rotation of the connecting shaft two 32 is fixed by the fixed nut 35.

[0026] In order to facilitate the installation on the electric propeller, the application further comprises the mounting ring 6 installed on the electric propeller, one end of the mounting ring 6 is provided with the clamping plate 61 of an integral structure, the top clamping plate 62 clamped on the outer side surface of the clamping plate 61 is arranged on the top shell 22, and the top clamping plate 62 is respectively penetrated by the bolt 63 and fixed by the nut 64. The fixed shell 2 is conveniently disassembled and rotated around the bolt 63 by manually loosening the bolt 63.

[0027] Working principle: The suspension fixing system in the application is installed on the marine electric propeller through the mounting ring. In order to install the marine electric propeller on the ship, the suspension fixing system is improved to achieve the installation.

[0028] The suspension fixing system realizes the clamping on the one end edge of the research ship through the gear transmission mechanism installed in the fixed shell. Please refer to the marine electric propeller clamped on the research ship through the suspension fixing system in the existing market. Since the fixed plate one and the fixed plate two are arranged on the bottom surface of the fixed shell, the gear transmission mechanism is installed between the fixed plates, the gear one and the gear two installed on the shaft body two are engaged by manually operating the operating handle, the pushing of the pushing block one and the pushing block two is driven, the wheel grooves are arranged on the pushing block one and the pushing block two, the transmission of the rotating wheel one and the rotating wheel two installed on the shaft body one is facilitated, the distance between the chuck arranged on the front end of the integrated rod and the front shell meets the needs of the clamping on the research ship. When the clamping and fixing are completed, the shaft body two is fixed by the inward screwing of the fixed nut.

[0029] The above-described embodiments are only used to describe the preferred embodiments of the present application, and do not limit the concept and scope of the present application. Various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design concept of the present application shall fall within the protection scope of the present application, and the technical content of the present application claimed for protection has been fully recorded in the claims.

Claims

1. An electric propulsion arrangement for a research vessel, comprising an electric propulsor, the electric propulsor comprising a suspension fixation system, the suspension fixation system comprising a fixation housing, characterized in that: The electric propulsion device further comprises a full electric propulsion system, which comprises a generator set arranged in a cabin of the ship and an electric motor as a propelling power device of the propeller, the fixed housing comprises a housing body and a fixed plate arranged at a bottom surface of a rear end of the housing body, a gear transmission mechanism is arranged between the fixed plate, the gear transmission mechanism comprises a connecting shaft, a rotating wheel, a gear, a pushing block and an operating handle, the connecting shaft comprises a connecting shaft one and a connecting shaft two which are connected to each other in an up-down mode, the rotating wheel is arranged on the connecting shaft one, the gear is arranged on the connecting shaft two, the pushing block is engaged with the gear at a bottom surface and is in transmission with the rotating wheel at a top surface, an integral rod is arranged at a front end of the pushing block, a chuck is arranged at a front end of the integral rod, and the operating handle is arranged at an outer end of the connecting shaft one.

2. An electric propulsion arrangement for a research vessel according to claim 1, characterized in that: The propeller comprises two sets of full-rotating rudders, each of which is provided with a front propeller and a rear propeller, and the rotating directions of the front propeller and the rear propeller are opposite.

3. The electric propulsion arrangement of a research vessel according to claim 1 or 2, characterized in that: The electric propulsion device further comprises two side thrusters which are arranged at a bow of the ship, and the generator set comprises three generators.

4. The electric propulsion arrangement of a research vessel according to claim 1, characterized in that: The fixed plate comprises a fixed plate one and a fixed plate two, and a protrusion is arranged at an outer side surface of the fixed plate two.

5. The electric propulsion arrangement of a research vessel according to claim 1, characterized in that: The rotating wheel comprises a rotating wheel one and a rotating wheel two, and the pushing block comprises a pushing block one and a pushing block two, and the top surfaces of the pushing block one and the pushing block two are respectively provided with wheel grooves for transmission of the rotating wheel one and the rotating wheel two.

6. The electric propulsion arrangement of a research vessel according to any one of claims 1 or 5, characterized in that: The gear comprises a gear one and a gear two, and the bottom surfaces of the pushing block one and the pushing block two are respectively provided with gear teeth for engagement with the gear one and the gear two.

7. The electric propulsion arrangement of a research vessel according to claim 1, characterized in that: The two ends of the connecting shaft one and one end of the connecting shaft two respectively pass through the fixed plate one and the fixed plate two and are provided with shaft plates, and the other end of the connecting shaft two passes through the fixed plate two and is arranged with a screw thread between the other end and the operating handle, and a fixed nut is arranged on the screw thread.

8. The electric propulsion arrangement of a research vessel according to claim 1, characterized in that: The electric propulsion device further comprises a mounting ring which is arranged on the electric propulsion device, one end of the mounting ring is provided with an integral structure of a clamping plate, a top clamping plate is arranged on the top shell and is clamped on an outer side surface of the clamping plate, and the clamping plate and the top clamping plate are respectively arranged with bolts and are fixed by nuts.

9. The electric propulsion arrangement of a research vessel according to claim 1, characterized in that: The operating handle comprises a fixed ring which is fixed at a rear end of the connecting shaft one and a handle body which is arranged on the fixed ring, and a circular ring is arranged at an outer end of the handle body.

Images