Test bench for demonstrating propeller propulsion systems

Abstract

The present invention belongs to the technical field of ship propulsion, and discloses a test bench device for displaying a propeller propulsion system, including an observation water tank, a propulsion system component, a power component and a support component, wherein the observation water tank includes a transparent observation window; the propulsion system component includes a fixed propeller, a propeller shaft and a stern tube, wherein the fixed propeller is detachably connected to the propeller shaft and immersed in water, and the stern tube is detachably sleeved outside the propeller shaft; the power component includes a driving motor and a gearbox mechanism for driving an intermediate shaft, wherein the intermediate shaft is detachably connected to the driving motor through the gearbox mechanism, and the intermediate shaft is connected to the propeller shaft by transmission; the support component includes a stern tube bearing base supporting the stern tube, an intermediate bearing base supporting the intermediate shaft and a centering jacking base, wherein the centering jacking base jacks the intermediate shaft so that the intermediate shaft and the propeller shaft are coaxially arranged. The test bench device of the present invention can simulate the working environment of a ship propeller, and has teaching and training functions such as operation, disassembly and installation, and maintenance, thereby improving the teaching effect.

Description

Technical Field

[0001] The invention relates to the technical field of ship propulsion devices, and in particular to a test bench device for demonstrating a propeller propulsion system. Background Art

[0002] The ship propeller is a propulsion system that converts the power generated by the main engine into the thrust of the ship to overcome the resistance of the ship in the water and thus promote the ship's navigation. At present, ship propellers are all produced in a non-standard customized manner, and are installed and debugged in the shipyard in the later stage of production; the ship propellers after delivery are operated and used on the actual ship, and the troubleshooting and disassembly and maintenance of the ship propellers in the later stage of ship operation are also carried out on the actual ship. For students in shipbuilding, ocean and other related majors in colleges and universities, it is necessary professional knowledge to understand the working performance and propulsion principle of ship propellers and master the skills of troubleshooting and disassembly and maintenance. However, it is difficult for school students to have the opportunity to work with real ships. In order to solve the above problems, some schools make exhibition stands with scrapped ship propellers as teaching exhibits. Such exhibition stands do not have the conditions to simulate the working environment of ships, and ship propellers cannot be operated and used, resulting in poor teaching effects. Summary of the invention

[0003] The purpose of the present invention is to provide a test bench device for displaying a propeller propulsion system, which can simulate the working environment of a ship propeller and has teaching and training functions for subjects such as operation, use, disassembly and installation, and maintenance, thereby improving the teaching effect.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] A test bench apparatus for demonstrating a propeller propulsion system is provided, comprising:

[0006] An observation water tank, the observation water tank comprising at least one transparent observation window, the observation water tank containing water;

[0007] A propulsion system component, the propulsion system component comprising a fixed propeller, a propeller shaft and a stern tube, the fixed propeller being detachably connected to the propeller shaft, the stern tube being detachably sleeved outside the propeller shaft, and the fixed propeller being arranged in the observation water tank and immersed in water;

[0008] A power assembly, the power assembly comprising a drive motor, an intermediate shaft and a gear box mechanism, the drive motor is used to drive the intermediate shaft, the intermediate shaft is detachably connected to the drive motor through the gear box mechanism, and the intermediate shaft is drivingly connected to the propeller shaft;

[0009] A support assembly, the support assembly includes a stern tube bearing base, an intermediate bearing base and a centering jacking base, the stern tube bearing base is used to support the stern tube, the intermediate bearing base is used to support the intermediate shaft, and the centering jacking base is used to jack up the intermediate shaft so that the intermediate shaft and the propeller shaft are coaxially arranged.

[0010] As a preferred structure of the present invention, the power assembly further includes a motor frequency converter, and the motor frequency converter is used to control the rotation speed of the drive motor.

[0011] As a preferred structure of the present invention, the support assembly further comprises a ground rail foundation, and the stern tube bearing base, the intermediate bearing base and the centering jacking base are all arranged on the ground rail foundation.

[0012] As a preferred structure of the present invention, the propulsion system component also includes an oil lubrication mechanism, which includes a front bearing, a rear bearing, a front seal and a rear seal. The front bearing and the rear bearing are respectively arranged at both ends of the stern tube and are mounted between the stern tube and the propeller shaft. The front seal is used to seal the front bearing, and the rear seal is used to seal the rear bearing.

[0013] As a preferred structure of the present invention, the power assembly further includes a speed measuring mechanism, and the speed measuring mechanism is used to detect the output speed of the gear box mechanism.

[0014] As a preferred structure of the present invention, the power assembly further includes a protective cover, and the protective cover is arranged at one end of the intermediate shaft connected to the gear box mechanism.

[0015] As a preferred structure of the present invention, the power assembly further includes a highly elastic coupling, and the highly elastic coupling is used to connect the gear box mechanism and the drive motor.

[0016] As a preferred structure of the present invention, the test bench device also includes a water cooling component, which includes a cooling water pump and a circulation pipeline. The circulation pipeline is connected to the gear box mechanism, the intermediate shaft and the observation water tank in sequence. The cooling water pump is used to extract the water in the observation water tank so that the water enters the circulation pipeline.

[0017] As a preferred structure of the present invention, the test bench device also includes a control system, and the control system includes a remote control mechanism, and the remote control mechanism is used to manually control the drive motor and / or the gear box mechanism and / or the fixed propeller.

[0018] As a preferred structure of the present invention, the gear box mechanism further includes a pressure sensor and / or a temperature sensor.

[0019] Beneficial effects of the present invention:

[0020] The test bench device for displaying the propeller propulsion system provided by the present invention has a fixed propeller arranged in an observation water tank, and a transparent observation window of the observation water tank is convenient for observing the operating status of the fixed propeller in the observation water tank; the driving motor is detachably connected to the gear box mechanism, and drives the propeller shaft through the intermediate shaft to realize the long shaft system arrangement, and the gear box mechanism has forward and reverse functions and a clutch function, which can easily realize the conversion between the forward and reverse functions, and is convenient for intuitively observing the forward and reverse working conditions of the propeller shaft; the support component realizes the centering of the shaft system and simplifies the structure; the observation water tank, the propulsion system component, the power component and the support component are all connected by fasteners such as screws, and no screws are used. Fixed connection methods such as welding are convenient for disassembly and assembly, so that students can intuitively understand the internal shape and connection structure of the structural parts; the test bench device can be used for teaching in colleges and universities, transferring non-standard customized ship propellers from the actual ship to the teaching laboratories of colleges and universities, and intuitively displaying the ship propellers in the teaching laboratories. It can clearly show the structural characteristics, connection relationships and movement states of the ship propellers, and realize the teaching and training functions of the structural principles, operation, disassembly and installation, maintenance and other subjects of the ship propellers. The display is intuitive and the operation is convenient. Students can perform actual ship operations on site in the teaching laboratory to have a more comprehensive understanding and mastery of the ship propellers. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a test bench device for demonstrating a propeller propulsion system provided by an embodiment of the present invention.

[0022] In the figure:

[0023] 1. Observation water tank; 11. Transparent observation window; 2. Propulsion system components; 21. Fixed propeller; 22. Propeller shaft; 23. Stern tube; 24. Oil lubrication mechanism; 241. Front seal; 242. Rear seal; 25. Oil tank; 26. Coupling; 3. Power component; 31. Drive motor; 32. Intermediate shaft; 33. Gearbox mechanism; 34. Speed ​​measuring mechanism; 35. Protective cover; 36. High elastic coupling; 4. Support component; 41. Stern tube bearing base; 42. Intermediate bearing base; 43. Centering and lifting base; 44. Ground rail base; 45. Gearbox base; 46. Motor base; 5. Water cooling component; 51. Cooling water pump. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It is also necessary to explain that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, 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.

[0027] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0028] The ship propeller is a propulsion system that converts the power generated by the main engine into the thrust of the ship to overcome the navigation resistance of the ship in the water, thereby promoting the navigation of the ship. At present, ship propellers are all produced in a non-standard customized manner, and are installed and debugged in the shipyard in the later stage of production; the ship propellers after delivery are operated and used on the actual ship, and the fault handling and disassembly and maintenance of the ship propellers in the later stage of ship operation are also operated on the actual ship. For students of shipbuilding, ocean and other related majors in colleges and universities, it is necessary professional knowledge to understand the working performance and propulsion principle of ship propellers and master the skills of fault handling and disassembly and maintenance. However, it is difficult for school students to have the opportunity to work with real ships. In order to solve the above problems, some schools make scrapped ship propellers into exhibition stands as teaching exhibits. Such exhibition stands do not have the conditions to simulate the working environment of ships, and ship propellers cannot be operated and used, and the teaching effect is poor. In order to solve the above problems, an embodiment of the present invention provides a test bench device for displaying a propeller propulsion system.

[0029] like Figure 1As shown, the test bench device for displaying the propeller propulsion system includes an observation water tank 1, a propulsion system component 2, a power component 3 and a support component 4. The observation water tank 1 includes at least one transparent observation window 11, and the observation water tank 1 is filled with water. The transparent observation window 11 is convenient for observing the operating state of the fixed propeller 21 in the observation water tank 1. Optionally, the observation water tank 1 is also provided with auxiliary equipment such as water inlets and outlets and valves, which is convenient to use and convenient for simulating the underwater working conditions of the fixed propeller 21.

[0030] The propulsion system component 2 includes a fixed propeller 21, a propeller shaft 22 and a stern tube 23. The fixed propeller 21 is detachably connected to the propeller shaft 22, and the stern tube 23 is detachably mounted on the propeller shaft 22. The fixed propeller 21 is arranged in the observation water tank 1 and immersed in the water. The power component 3 includes a driving motor 31, an intermediate shaft 32 and a gearbox mechanism 33. The driving motor 31 is used to drive the intermediate shaft 32. The intermediate shaft 32 is detachably connected to the driving motor 31 through the gearbox mechanism 33. The intermediate shaft 32 is connected to the propeller shaft 22 through transmission to realize a long shaft system arrangement, simulating the transmission structure of the propulsion system component 2 on a real ship. Specifically, the gearbox mechanism 33 has forward and reverse functions and a clutch function, which can easily realize the conversion between the forward function and the reverse function, and is convenient for intuitively observing the forward and reverse working conditions of the propeller shaft 22.

[0031] The support assembly 4 includes a stern tube bearing base 41, an intermediate bearing base 42 and a centering lifting base 43. The stern tube bearing base 41 is used to support the stern tube 23, the intermediate bearing base 42 is used to support the intermediate shaft 32, and the centering lifting base 43 is used to lift the intermediate shaft 32 so that the intermediate shaft 32 and the propeller shaft 22 are coaxially arranged to meet the shaft system operation requirements. The centering lifting base 43 is also equipped with a jack. After the teaching demonstration is over, the shaft system can be lifted using a jack when the intermediate shaft 32 and the propeller shaft 22 are stationary, which meets the teaching use. Optionally, the support assembly 4 can also be provided with a gearbox base 45 and a motor base 46. The gearbox base 45 provides support for the gearbox mechanism 33, and the motor base 46 provides support for the drive motor 31. There is no need to use an intermediate transmission mechanism, so that the gearbox mechanism 33, the drive motor 31 and the intermediate shaft 32 are coaxially arranged, simplifying the structure. The observation water tank 1, propulsion system component 2, power component 3 and support component 4 are all connected by fasteners such as screws, without using fixed connection methods such as welding, which facilitates disassembly and assembly, allowing students to intuitively understand the internal shape and connection structure of the structural parts.

[0032] The test bench device for displaying the propeller propulsion system of the embodiment of the present invention can be applied to teaching use in colleges and universities. It can transfer the non-standard customized ship propeller from the actual ship to the teaching laboratory of the college and university, and intuitively display the ship propeller in the teaching laboratory. It can clearly display the structural characteristics, connection relationship and movement state of the ship propeller, and realize the teaching and training functions of subjects such as the structural principle, operation, disassembly and installation, and maintenance of the ship propeller. The display is intuitive and the operation is convenient. Students can perform actual ship operations on site in the teaching laboratory to have a more comprehensive understanding and mastery of the ship propeller.

[0033] As a preferred solution, the power component 3 also includes a motor inverter, which is used to control the operating gear of the drive motor 31, thereby simulating the operating gear of the diesel engine, approaching the actual working environment of the ship propeller, realizing the control of the rotation speed of the fixed propeller 21, simulating the actual ship operation process, and improving the teaching effect.

[0034] Furthermore, the support assembly 4 further includes a ground rail foundation 44, which serves as a support reference, and the stern tube bearing base 41, the intermediate bearing base 42 and the centering jacking base 43 are all arranged on the ground rail foundation 44. The ground rail foundation 44 provides a support reference, and the stern tube bearing base 41, the intermediate bearing base 42 and the centering jacking base 43 are all arranged on the ground rail foundation 44, which facilitates the centering adjustment between the shaft systems to meet the operation requirements of the shaft system and ensure the centering accuracy.

[0035] As a preferred solution, the propulsion system component 2 also includes an oil lubrication mechanism 24 and an oil tank 25. The oil lubrication mechanism 24 includes a front bearing, a rear bearing (not shown in the figure), a front seal 241, and a rear seal 242. The front bearing and the rear bearing are respectively arranged at both ends of the stern tube 23, and are sleeved between the stern tube 23 and the propeller shaft 22. The front seal 241 is used to seal the front bearing, and the rear seal 242 is used to seal the rear bearing. The front bearing and the rear bearing provide rotation support for the rotation of the propeller shaft 22, and the front seal 241 and the rear seal 242 can prevent the lubricating oil inside the stern tube 23 from leaking. The oil tank 25 provides lubricating oil for the oil lubrication mechanism 24, and the oil tank 25 can be installed on the observation water tank 1 to save space.

[0036] As a preferred solution, the power assembly 3 also includes a speed measuring mechanism 34, which is used to detect the output speed of the gear box mechanism 33, so as to grasp the speed of the intermediate shaft 32 and the propeller shaft 22, so as to facilitate students to establish the relationship between the operating state and speed of the fixed propeller 21.

[0037] Furthermore, the power assembly 3 further includes a protective cover 35, which is arranged at one end of the intermediate shaft 32 connected to the gear box mechanism 33. Since it is difficult to strictly control dust in the teaching environment of the teaching laboratory, the protective cover 35 protects the bolts of the flange part where the shaft system is installed to ensure the normal operation of the power assembly 3.

[0038] As a preferred solution, the power assembly 3 further includes a high-elastic coupling 36, which is used to connect the gear box mechanism 33 and the drive motor 31. The high-elastic coupling 36 is a torsional high-elastic coupling, which can effectively reduce and absorb vibration, improve the use factor and transmission capacity, extend the maintenance cycle and service life, use a parallel or spiral groove system to adapt to various deviations and transmit torque, has good corrosion resistance, and also increases the torque bearing capacity and rigidity, thereby improving the working reliability of the power assembly 3.

[0039] As a preferred solution, the test bench device further includes a water cooling assembly 5, which includes a cooling water pump 51 and a circulation pipeline (not shown in the figure). The circulation pipeline sequentially connects the gear box mechanism 33, the intermediate shaft 32 and the observation water tank 1. The cooling water pump 51 is used to extract water in the observation water tank 1 so that the water enters the circulation pipeline, thereby cooling the bearings of the gear box mechanism 33 and the intermediate shaft 32. After the water enters the circulation pipeline, the bearing structure of the gear box mechanism 33 and the intermediate shaft 32 is sequentially cooled to prevent the power assembly 3 from overheating.

[0040] As a preferred solution, the test bench device also includes a control system, which includes a remote control mechanism, which is used to manually control the drive motor 31 and / or the gear box mechanism 33 and / or the fixed propeller 21. Specifically, the remote control mechanism can be remotely operated by operating terminals such as handles, knobs, and conversion switches to operate the drive motor 31, the gear box mechanism 33, and the fixed propeller 21 according to teaching needs, which is convenient to use. The specific structure and remote control principle of the remote control mechanism are existing technologies in the field, and the embodiments of the present invention are not described in detail here.

[0041] As a preferred solution, the gearbox mechanism 33 also includes a pressure sensor and / or a temperature sensor. Real-time detection can be performed during operation. The pressure sensor can detect the working pressure in the gearbox mechanism 33, and the temperature sensor can detect the temperature in the gearbox mechanism 33, thereby ensuring that the gearbox mechanism 33 operates normally.

[0042] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A test bench device for demonstrating a propeller propulsion system, characterized in that: include: An observation water tank (1), the observation water tank (1) comprising at least one transparent observation window (11), the observation water tank (1) containing water; A propulsion system component (2), the propulsion system component (2) comprising a fixed propeller (21), a propeller shaft (22) and a stern tube (23), the fixed propeller (21) being detachably connected to the propeller shaft (22), the stern tube (23) being detachably sleeved on the outside of the propeller shaft (22), the fixed propeller (21) being arranged in the observation water tank (1) and immersed in water; the propulsion system component (2) further comprising an oil lubrication mechanism (24), the oil lubrication mechanism (24) comprising a front bearing, a rear bearing, a front seal (241) and a rear seal (242), the front bearing and the rear bearing being respectively arranged at two ends of the stern tube (23) and sleeved between the stern tube (23) and the propeller shaft (22), the front seal (241) being used to seal the front bearing, and the rear seal (242) being used to seal the rear bearing; A power assembly (3), the power assembly (3) comprising a drive motor (31), an intermediate shaft (32) and a gear box mechanism (33), the drive motor (31) being used to drive the intermediate shaft (32), the intermediate shaft (32) being detachably connected to the drive motor (31) via the gear box mechanism (33), and the intermediate shaft (32) being drivingly connected to the propeller shaft (22); the power assembly (3) further comprising a motor frequency converter, a speed measuring mechanism (34) and a highly elastic coupling (36), the motor frequency converter being used to control the rotation speed of the drive motor (31), the speed measuring mechanism (34) being used to detect the output rotation speed of the gear box mechanism (33), and the highly elastic coupling (36) being used to connect the gear box mechanism (33) and the drive motor (31); A support assembly (4), the support assembly (4) comprising a stern tube bearing base (41), an intermediate bearing base (42) and a centering and lifting base (43), the stern tube bearing base (41) being used to support the stern tube (23), the intermediate bearing base (42) being used to support the intermediate shaft (32), and the centering and lifting base (43) being used to lift the intermediate shaft (32) so that the intermediate shaft (32) and the propeller shaft (22) are coaxially arranged; the support assembly (4) further comprising a ground rail foundation (44), the stern tube bearing base (41), the intermediate bearing base (42) and the centering and lifting base (43) being all arranged on the ground rail foundation (44).

2. The test bench device for demonstrating a propeller propulsion system according to claim 1, characterized in that: The power assembly (3) further comprises a protective cover (35), wherein the protective cover (35) is arranged at one end of the intermediate shaft (32) connected to the gear box mechanism (33).

3. The test bench device for demonstrating a propeller propulsion system according to claim 1, characterized in that: The test bench device also includes a water cooling component (5), the water cooling component (5) includes a cooling water pump (51) and a circulation pipeline, the circulation pipeline is connected to the gear box mechanism (33), the intermediate shaft (32) and the observation water tank (1) in sequence, and the cooling water pump (51) is used to extract the water in the observation water tank (1) so that the water enters the circulation pipeline.

4. The test bench device for demonstrating a propeller propulsion system according to claim 1, characterized in that: The test bench device also includes a control system, which includes a remote control mechanism, and the remote control mechanism is used to manually control the drive motor (31) and / or the gear box mechanism (33) and / or the fixed propeller (21).

5. The test bench device for demonstrating a propeller propulsion system according to claim 1, characterized in that: The gear box mechanism (33) further comprises a pressure sensor and / or a temperature sensor.

Images