Teaching test bed device for double-engine parallel operation marine propeller
By designing a teaching test bench for marine propulsion with dual engines running in parallel, and using a variable frequency motor and gearbox to simulate propulsion operation, the problem of students' inability to operate on a real ship was solved. This enabled diversified teaching and practical skills, and improved students' understanding and mastery of propulsion structure and operation mode.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-24
AI Technical Summary
It is difficult for college students to troubleshoot and disassemble and repair marine main propulsion systems on actual ships, and as the complexity of the systems increases, understanding and mastering them becomes even more difficult.
Design a teaching test bench device for a dual-engine parallel-operation marine propulsion system, including a propulsion mechanism, a transmission shaft system, a propeller, and an observation tank. The device simulates the operation of an actual propulsion system through a variable frequency motor and a dual-engine parallel-operation gearbox, enabling simulated teaching of single-engine single-propeller and dual-engine parallel-operation modes.
It enabled teaching and hands-on practice on the structural principles, operation, disassembly, installation, and maintenance of marine propulsion systems, improving students' understanding and mastery of the various structures and operating states of propulsion systems, and equipping them with the ability to demonstrate and practice diverse operating modes.
Smart Images
Figure CN224036019U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ship teaching equipment technical field especially, it relates to a kind of marine propeller teaching test bench device of double-machine parallel operation. BACKGROUND
[0002] Marine main propulsion system is the power generated by main engine into the thrust of ship advancing, to overcome the resistance of ship sailing in water, push the sailing of ship. Current ship propeller is non-standard customization production, installation and debugging are carried out in shipyard, operation and use are carried out on real ship, and fault handling and disassembly and repair during the running of ship are also carried out on real ship. It is difficult for students of higher learning institutions to have such opportunity to work with real ship, which will cause that students can only understand and master it through text, video and other ways, and it is difficult to understand and master.
[0003] Moreover, for the more complex structure and function of marine main propulsion system, it is more difficult for students to understand and master. At present, with the development of marine main propulsion system, it has developed various forms, such as propeller, single-machine single-blade, double-machine parallel operation and other forms, which include the diversification development of marine main propulsion system in propulsion power structure, propeller function, gear box form and other aspects, which also brings more difficulty for students to understand and master. Therefore, a kind of marine propeller teaching test bench device of double-machine parallel operation is needed to solve the above technical problems. CONTENT OF UTILITY MODEL
[0004] The utility model aims at providing a kind of marine propeller teaching test bench device of double-machine parallel operation, can realize the simulation of marine propeller single-machine single-blade operation mode, double-machine parallel operation mode and the display of propulsion mechanism, gear box, transmission shaft system and propeller structure, and can be used and operated in higher learning institutions teaching, to facilitate students to understand and master more comprehensively.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] Marine propeller teaching test bench device of double-machine parallel operation, including propulsion mechanism, transmission shaft system, propeller and observation water tank;
[0007] The above-mentioned propulsion mechanism includes two variable frequency motors and double-machine parallel operation gear box, the above-mentioned double-machine parallel operation gear box includes output end and two input ends, and the two above-mentioned variable frequency motors are connected to the two input ends of the above-mentioned double-machine parallel operation gear box one by one;One end of the above-mentioned transmission shaft system is connected to the output end of the above-mentioned double-machine parallel operation gear box, and the other end is connected to the propeller;
[0008] The above-mentioned double-machine parallel operation gear box is used to connect at least one of the above-mentioned two variable frequency motors with the above-mentioned transmission shaft system;
[0009] The observation water tank is filled with liquid water, and the other end of the transmission shaft system is sealed through the observation water tank, and the propeller is arranged in the observation water tank and immersed in the liquid water.
[0010] Optionally, the double-machine parallel gear box comprises an output shaft system, two input shaft systems and two clutches, the input shaft systems are in transmission connection with the output shaft system, the two clutches are in one-to-one connection with the two input shaft systems, and the clutches can be engaged or disengaged to enable the corresponding input shaft systems and the output shaft system to be in transmission connection or disconnected.
[0011] Optionally, the clutch is a wet multi-plate friction clutch.
[0012] Optionally, the transmission shaft system comprises an intermediate shaft and a stern shaft, the stern shaft and the intermediate shaft are detachably connected, the intermediate shaft is connected to the output shaft of the double-machine parallel gear box, and the stern shaft is connected to the propeller.
[0013] Optionally, the transmission shaft system further comprises a plurality of support bearings, and the support bearings are arranged on the intermediate shaft or the stern shaft.
[0014] Optionally, the propeller is a variable-pitch propeller.
[0015] Optionally, the propulsion mechanism further comprises two high-elastic couplings, each high-elastic coupling is arranged between the corresponding variable frequency motor and the input end of the double-machine parallel gear box.
[0016] Optionally, the propulsion mechanism further comprises a hydraulic station, the hydraulic station is connected to the double-machine parallel gear box, and the hydraulic station is used for supplying hydraulic oil to the double-machine parallel gear box.
[0017] Optionally, the propulsion mechanism further comprises a plurality of temperature sensors, the plurality of temperature sensors are arranged on the double-machine parallel gear box, the transmission shaft system and / or the propeller.
[0018] The propulsion mechanism further comprises a plurality of pressure sensors, and the plurality of pressure sensors are arranged on the double-machine parallel gear box, the transmission shaft system and / or the propeller.
[0019] Optionally, the propulsion mechanism further comprises a remote control station, and the variable frequency motor, the double-machine parallel gear box and the propeller are electrically connected to the remote control station.
[0020] The beneficial effects of the utility model are as follows:
[0021] The utility model provides a kind of dual-engine parallel operation's marine propeller teaching test bench device, the use of frequency conversion motor to simulate actual marine propeller diesel engine drive and the simulation conversion of each operating gear;And by dual-engine parallel operation gear box and transmission shaft system, the driving power of frequency conversion motor is transmitted to propeller to drive propeller movement, realize the simulation of the overall structure of dual-engine parallel operation's marine propeller, to realize the structure principle of marine propeller, operation use, disassembly and installation, maintenance teaching and real ship equipment training function of subject, more conveniently student is driven to marine gear box, the operation of dual-engine parallel operation gear box, transmission and the propulsion of propeller different draft under transmission shaft system etc.Each structure and operating state etc. Knowledge point is efficiently understood and mastered.And, by using dual-engine parallel operation gear box, it is realized to transmission shaft system input driving force provided by at least one of two input power sources, so that the teaching test bench device has single-engine single propeller operating mode and dual-engine parallel operation operating mode, improve the diversity of the teaching test bench device operating state, realize a dual-engine parallel operation's marine propeller teaching test bench device can complete the display and practical operation of multiple operating modes. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 It is the plan view of the dual-engine parallel operation's marine propeller teaching test bench device provided by the utility model specific embodiment.
[0023] Figure 2 It is the front view of the dual-engine parallel operation's marine propeller teaching test bench device provided by the utility model specific embodiment.
[0024] In the drawing:
[0025] 10, propulsion mechanism;11, frequency conversion motor;12, dual-engine parallel operation gear box;13, high elastic coupling;
[0026] 20, transmission shaft system;21, intermediate shaft;22, stern shaft;23, support bearing;24, shaft coupling;25, stern tube;
[0027] 30, propeller;40, observation water tank;50, hydraulic station;60, remote control station. DETAILED DESCRIPTION
[0028] The utility model is further explained in detail in connection with drawing and embodiment below.It can be understood that the specific embodiment described here is only used to explain the utility model, and is not limited to the utility model.In addition, it needs to be explained that, for the convenience of description, only part related to the utility model is shown in the drawing, not all structures.
[0029] In the description of the utility model, unless another definite provision and limitation, the term "link", "connect", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integral ; can be direct connection, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's mutual action relation. For ordinary skilled in the art, the above-mentioned term can be understood in the utility model with the concrete meaning of the specific situation.
[0030] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional feature between them. Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature. The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.
[0031] In the description of the embodiment, the terms "on", "under", "left", "right", etc. orientation or position relationship is based on the orientation or position relationship shown in the drawing, just for the convenience of description and simplification operation, and not indicate or imply that the device or element referred to must have a particular orientation, with a particular orientation and operation, therefore, cannot be understood as a restriction on the utility model. In addition, the terms "first", "second" are just used to distinguish in the description, and have no special meaning.
[0032] The following refers to Figure 1 And Figure 2 The utility model provides a ship propeller teaching test bench device of double machine parallel running is introduced.
[0033] The embodiment provides a ship propeller teaching test bench device of double machine parallel running, for simulating the ship propeller of double machine parallel running and being applied in higher education teaching, so that students more comprehensively understand and master the simulation of ship propeller single machine single propeller operation mode, double machine parallel running mode and the structure of propulsion mechanism 10, gear box, transmission shaft system 20 and propeller 30, realize the structure principle, operation use, disassembly installation, maintenance of ship propeller, and the teaching and real ship equipment training function of subject.
[0034] Please refer to Figure 1 And Figure 2Specifically, the dual-engine parallel operation ship propeller teaching test bench device comprises a propulsion mechanism 10, a transmission shaft system 20, a propeller 30 and an observation water tank 40. The propulsion mechanism 10 comprises two variable frequency motors 11 and a dual-engine parallel operation gearbox 12, the dual-engine parallel operation gearbox 12 comprises one output end and two input ends, and the two variable frequency motors 11 are connected to the two input ends of the dual-engine parallel operation gearbox 12 in one-to-one correspondence; one end of the transmission shaft system 20 is connected to the output end of the dual-engine parallel operation gearbox 12, and the other end is connected to the propeller 30; the dual-engine parallel operation gearbox 12 is used for connecting at least one of the two variable frequency motors 11 and the transmission shaft system 20; the observation water tank 40 is filled with liquid water, the other end of the transmission shaft system 20 is sealingly provided in the observation water tank 40, and the propeller 30 is arranged in the observation water tank 40 and immersed in the liquid water.
[0035] The dual-engine parallel operation ship propeller teaching test bench device in the embodiment simulates the diesel engine driving of the actual ship propeller and the simulation conversion of each operating gear through the use of the variable frequency motor 11; and the driving power of the variable frequency motor 11 is transmitted to the propeller 30 through the dual-engine parallel operation gearbox 12 and the transmission shaft system 20 to drive the propeller 30 to move, so as to realize the simulation of the overall structure of the dual-engine parallel operation ship propeller, thereby realizing the teaching and real-ship equipment training functions of the structure principle, operation and use, disassembly and installation, maintenance and maintenance of the ship propeller, and more conveniently enabling students to efficiently understand and master the knowledge points of the driving of the ship gearbox, the operation of the dual-engine parallel operation gearbox 12, the transmission of the transmission shaft system 20 and the propulsion of the propeller 30 under different water depths and other structural and operating states. Moreover, the driving power provided by at least one of the two input power sources is input to the transmission shaft system 20 through the use of the dual-engine parallel operation gearbox 12, so that the teaching test bench device has a single-engine single-propeller operating mode and a dual-engine parallel operation mode, the diversity of the operating state of the teaching test bench device is improved, and one dual-engine parallel operation ship propeller teaching test bench device can complete the display and operation of multiple operating modes.
[0036] It should be noted that the single-engine single-propeller operating mode is a mode in which a single power source (in the embodiment, the variable frequency motor 11) drives the propeller 30 to operate, and the dual-engine parallel operation mode is a mode in which two power sources (in the embodiment, the variable frequency motor 11) drive the propeller 30 to operate.
[0037] Specifically, the variable frequency motor 11 comprises a motor structure and a frequency converter, the frequency converter can perform speed simulation to control the operating gear and realize the control of the speed of the propeller 30, thereby simulating the actual ship operation process.
[0038] Further, the double-machine parallel operation gearbox 12 comprises an output shaft system, two input shaft systems and two clutches, the input shaft systems are in transmission connection with the output shaft system, the two clutches are in one-to-one connection with the two input shaft systems, and the clutches can be engaged or disengaged to make the corresponding input shaft system and the output shaft system in transmission connection or disconnection. During operation, by controlling the engagement or disengagement of the two clutches, the corresponding input shaft system and the output shaft system can be in transmission connection or disconnection, so that the single-machine single-propeller operation mode and the double-machine parallel operation mode can be realized, and students can master the method and process of engaging, emptying and disengaging the clutch.
[0039] Optionally, the clutch is a wet multi-plate friction clutch, which reduces the clutch impact during parallel operation of the secondary machine, thereby meeting the parallel and single operation requirements of the double-machine parallel operation gearbox 12 for the two power sources.
[0040] Specifically, the input shaft system comprises two input shafts, the two input shafts are connected to the inner ring and the outer ring of the clutch respectively, one of the two input shafts is connected to the variable frequency motor 11, and the other is in transmission connection with the output shaft system, so that when the clutch is engaged, the two input shafts are connected, and the variable frequency motor 11 transmits input power to the output shaft system, and when the clutch is disengaged, the two input shafts are disconnected.
[0041] Specifically, the input shaft system and the output shaft system are in transmission connection through gears, so as to realize the transmission connection of the two and also realize the function of gearbox speed change.
[0042] Optionally, the propulsion mechanism 10 further comprises two high-elastic couplings 13, each high-elastic coupling 13 is connected between each variable frequency motor 11 and the input end of the corresponding double-machine parallel operation gearbox 12, so as to realize the connection of the two and have the advantages of high elasticity, large torque transmission and high reliability.
[0043] Further, the transmission shaft system 20 comprises an intermediate shaft 21 and a propeller shaft 22, the propeller shaft 22 and the intermediate shaft 21 are detachably connected, the intermediate shaft 21 is connected to the output shaft of the double-machine parallel operation gearbox 12, and the propeller shaft 22 is connected to the propeller 30. This arrangement further refines the transmission shaft system 20, so that the transmission shaft system 20 has the function of simulating the disassembly of the shaft system of an actual ship.
[0044] Specifically, the transmission shaft system 20 further comprises a plurality of support bearings 23, the support bearings 23 are arranged on the intermediate shaft 21 or the propeller shaft 22 to support the transmission shaft system 20 and make it run stably, thereby prolonging the service life. Optionally, the support bearings 23 are provided in two, one of the two support bearings 23 is arranged on the intermediate shaft 21, and the other is arranged on the propeller shaft 22, so as to more effectively support the entire transmission shaft system 20.
[0045] Specifically, the transmission shaft system 20 further comprises a shaft coupling 24 arranged between the intermediate shaft 21 and the propeller shaft 22 to realize the connection of the two.
[0046] Specifically, the propeller shaft 22 is provided with a stern tube 25 for supporting and sealing the propeller shaft 22, and the stern tube 25 is provided with an air valve for inputting corresponding air pressure into the observation water tank 40, so as to simulate the adjustment of the air pressure, facilitate the students to understand the relationship between the control air pressure and the draft, and the support bearing 23 arranged on the propeller shaft 22 is located between the stern tube 25 and the propeller shaft 22 to realize the supporting function. Moreover, the two ends of the stern tube 25 are provided with sealing structures at the connection positions with the propeller shaft 22, so as to realize the flow of air in the stern tube 25, and also realize the sealing connection between the observation water tank 40 and the propeller shaft 22, so as to avoid the liquid water in the observation water tank 40 from flowing out.
[0047] Further, the propeller 30 is a controllable pitch propeller, and by arranging the controllable pitch propeller, the adjustment operation and actual operation of the pitch of the propeller 30 can be realized; so as to facilitate the students to master the structure composition and characteristics of the controllable pitch propeller, master the adjustment method and adjustment process of the pitch and correctly perform the pitch adjustment operation, so as to display the structure composition, characteristics and working principle of the controllable pitch propeller by the actual object, and display the method of pitch adjustment and pitch locking and the method of pitch being locked as a fixed pitch propeller when a fault occurs.
[0048] Specifically, the observation water tank 40 comprises a tank body and a valve, the tank body is provided with liquid water, and the valve is used for the communication between the tank body and the outside, so as to realize the entering and discharging of the liquid water, and thus the adjustment of the draft can be realized.
[0049] Optionally, the observation water tank 40 further comprises a vibration structure, which can simulate the actual flow state of the liquid water, so as to simulate the motion state of the propeller 30 under various environments.
[0050] More specifically, at least part of the tank wall of the tank body is arranged as a transparent structure, so as to facilitate the observation and learning.
[0051] Please continue to refer to Figure 1 and Figure 2 In the embodiment, the double-machine parallel operation ship propeller teaching test bench device further comprises a hydraulic station 50 connected to the double-machine parallel operation gear box 12, and the hydraulic station 50 is used for supplying hydraulic oil to the double-machine parallel operation gear box 12 to ensure the normal operation of the double-machine parallel operation gear box 12.
[0052] Further, the teaching test bench device for the marine propeller with double engines in parallel also comprises a temperature sensor arranged in the gear box 12, the transmission shaft system 20 and / or the propeller 30, so as to detect the temperature of the gear box 12, the transmission shaft system 20 and / or the propeller 30 during operation, and / or the teaching test bench device for the marine propeller with double engines in parallel also comprises a pressure sensor arranged in the gear box 12, the transmission shaft system 20 and / or the propeller 30, so as to detect the pressure of the gear box 12, the transmission shaft system 20 and / or the propeller 30 during operation, so that the students can more conveniently understand and master the temperature and / or pressure changes of the marine propeller with double engines in parallel during actual operation, or the temperature and / or pressure changes of some structures.
[0053] Further, the teaching test bench device for the marine propeller with double engines in parallel also comprises a remote control station 60, and the variable frequency motor 11, the gear box 12 and the propeller 30 are electrically connected to the remote control station 60. The remote control station 60 is used for controlling the variable frequency motor 11, the gear box 12 and the propeller 30, so as to control the variable frequency motor 11, the gear box 12 and the propeller 30. In addition, the hydraulic station 50 is also electrically connected to the remote control station 60, so as to control the hydraulic station 50.
[0054] Specifically, the remote control station 60 adopts a touch screen as a terminal, adopts a field bus network communication configuration system architecture, realizes the functions of variable pitch control of the propeller 30, variable frequency drive speed control of the variable frequency motor 11, clutch control and the like, and monitors the running states of all the devices, and performs corresponding alarm and protection actions. It can be understood that the specific control structures can all adopt the control structures commonly used in the prior art, and details are not described herein.
[0055] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not limitations on the embodiments of the utility model. For ordinary skilled persons in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A teaching and experimental platform for a dual-engine marine propulsion system, characterized in that: It includes a propulsion mechanism (10), a transmission shaft system (20), a propeller (30), and an observation water tank (40); The propulsion mechanism (10) includes two variable frequency motors (11) and a dual-motor parallel gearbox (12). The dual-motor parallel gearbox (12) includes an output end and two input ends. The two variable frequency motors (11) are connected one-to-one to the two input ends of the dual-motor parallel gearbox (12). One end of the transmission shaft system (20) is connected to the output end of the dual-motor parallel gearbox (12), and the other end is connected to the propeller (30). The dual-motor parallel gearbox (12) is used to connect at least one of the two variable frequency motors (11) to the transmission shaft system (20); The observation tank (40) is filled with liquid water, and the other end of the transmission shaft (20) is sealed through the observation tank (40). The propeller (30) is placed in the observation tank (40) and submerged in the liquid water.
2. The teaching and experimental platform device for a dual-engine marine propulsion system according to claim 1, characterized in that, The dual-machine parallel gearbox (12) includes an output shaft system, two input shaft systems and two clutches. The input shaft systems are connected to the output shaft system in a transmission manner. The two clutches are connected to the two input shaft systems in a one-to-one correspondence. The clutches can be engaged or disengaged to make the corresponding input shaft system and the output shaft system in a transmission connection or disconnection.
3. The teaching and experimental platform device for a dual-engine marine propulsion system according to claim 2, characterized in that, The clutch is a wet multi-plate friction clutch.
4. The teaching and experimental platform device for a dual-engine marine propulsion system according to claim 1, characterized in that, The transmission shaft system (20) includes an intermediate shaft (21) and a stern shaft (22). The stern shaft (22) and the intermediate shaft (21) are detachably connected. The intermediate shaft (21) is connected to the output shaft of the dual-engine parallel gearbox (12), and the stern shaft (22) is connected to the propeller (30).
5. The teaching and experimental platform for a dual-engine marine propulsion system according to claim 4, characterized in that, The transmission shaft system (20) also includes several support bearings (23), which are disposed on the intermediate shaft (21) or the stern shaft (22).
6. The teaching and experimental platform for a dual-engine marine propulsion system according to claim 1, characterized in that, The propeller (30) is an adjustable pitch propeller.
7. The teaching and experimental platform for a dual-engine marine propulsion system according to claim 1, characterized in that, The propulsion mechanism (10) also includes two high-elasticity couplings (13), and each of the variable frequency motors (11) and the input end of the corresponding dual-motor parallel gearbox (12) are connected through the high-elasticity couplings (13).
8. The teaching and experimental platform device for a dual-engine marine propulsion system according to claim 1, characterized in that, It also includes a hydraulic station (50) connected to the dual-machine parallel gearbox (12), which supplies hydraulic oil to the dual-machine parallel gearbox (12).
9. The teaching and experimental platform for a dual-engine marine propulsion system according to claim 1, characterized in that, It also includes a plurality of temperature sensors, wherein the plurality of temperature sensors are disposed in the dual-machine parallel gearbox (12), the transmission shaft system (20) and / or the propeller (30); and / or, It also includes several pressure sensors, which are disposed in the dual-machine parallel gearbox (12), the transmission shaft system (20) and / or the propeller (30).
10. The teaching and experimental platform device for a dual-engine marine propulsion system according to claim 1, characterized in that, It also includes a remote control station (60), and the variable frequency motor (11), the dual-motor parallel gearbox (12) and the propeller (30) are all electrically connected to the remote control station (60).