CN110758706A

CN110758706A - Externally-hung electric propulsion device for automobile ferry

Info

Publication number: CN110758706A
Application number: CN201910984148.6A
Authority: CN
Inventors: 陈维加
Original assignee: Suzhou Pavamis Power Co Ltd
Priority date: 2019-10-16
Filing date: 2019-10-16
Publication date: 2020-02-07

Abstract

The invention discloses an externally-hung electric propulsion device for an automobile ferry, which is characterized by comprising a plurality of pairs of electric propellers, wherein two electric propellers of each pair are respectively arranged at the left side and the right side of the automobile ferry, each electric propeller comprises a navigation floating body, more than one electric propeller arranged on the navigation floating body and a driver thereof, and a power battery arranged in the navigation floating body and used for supplying energy to the electric propellers and the driver thereof; the navigation floating body is connected to the automobile ferry through a detachable connecting mechanism; the automobile ferry is characterized by further comprising an external controller which is arranged on the automobile ferry and connected with drivers of the electric propellers in a wired or wireless mode, and the external controller is used for controlling the positive and negative rotation and the rotating speed of the electric propellers. The invention solves the pollution problem of the prior automobile ferry driven by fuel power, has the characteristic of quick replacement, solves the problem of endurance of the electric automobile ferry with a built-in battery, saves energy, and is easy to implement and popularize.

Description

Externally-hung electric propulsion device for automobile ferry

Technical Field

The invention relates to an externally-hung electric propulsion device for an automobile ferry.

Background

With the rapid development of society, the number of fuel (diesel oil or gasoline) motor vehicles and boats is increased extremely rapidly, and the air pollution is also serious while the life of people is improved. In recent years, various measures are taken by the nation to reduce air pollution, and the policy of supporting new energy automobiles is particularly and vigorously promoted. Therefore, in short years, the technologies of batteries, motors, control systems and whole vehicles are rapidly developed, and the proportion of electric vehicles is rapidly increased. The discharge capacity per horsepower of a marine vessel is far more severe than that of an automobile. According to a research report on atmospheric pollutants of ships in Jiangsu province, which is published by the environmental detection center in Jiangsu province in 2014 12 months, the water transportation condition and the ship pollution in China are investigated in great detail. Compared with ships in the world, the ship engine in China has obvious defects, and low-end diesel engines are widely applied, so that the difference from the international level exists. In the aspect of air pollution of marine diesel engines, the emission of China is far higher than the level of developed countries in Europe and America. With the further development of economy in China, the pollution of ships is more and more serious, so that how to control and reduce the exhaust emission of ships is urgent.

As is known, an automobile ferry is also a very important vehicle in some inland river or lake areas, and the automobile ferry itself is a fuel (diesel or gasoline) motor boat, and the pollution and the energy consumption are huge.

Considering the problems of large energy consumption of single running of the automobile ferry and continuous cruising, if an electric driving scheme with a built-in battery is adopted, the electric driving scheme cannot be suitable for the application environment of the current automobile ferry. The scheme of the built-in battery is necessary to adopt a large-capacity battery in order to ensure a long navigation mileage, but the large-capacity battery is inconvenient and expensive to replace on one hand, and on the other hand, the charging time is very long, so that the service cycle and the efficiency of the automobile ferry cannot be ensured. In addition, if various existing automobile ferries are electrically transformed or an electric ship is directly adopted to replace an existing ship, the transformation is obviously unrealistic, the transformation cost is high, a large amount of existing automobile ferries are wasted, and a large amount of resources are wasted. Therefore, a better scheme for solving the pollution problem of the existing automobile ferry and the endurance problem of the electric automobile ferry with a built-in battery is urgently needed.

Disclosure of Invention

The invention aims to: the utility model provides an outer hanging electric propulsion means for car ferry, it can solve the pollution problem of the car ferry of present fuel power drive and the continuation of the journey problem of the electric automobile ferry of built-in battery to the energy saving is easily implemented and is promoted simultaneously.

The technical scheme of the invention is as follows: an externally-hung electric propulsion device for an automobile ferry is characterized by comprising a plurality of pairs of electric propellers, wherein two electric propellers of each pair are respectively arranged at the left side and the right side of the automobile ferry, each electric propeller comprises a sailing floating body, more than one electric propeller and a driver thereof arranged on the sailing floating body, and a power battery which is arranged in the sailing floating body and used for supplying energy to the electric propellers and the drivers thereof; the navigation floating body is connected to the automobile ferry through a detachable connecting mechanism; the automobile ferry is characterized by further comprising an external controller which is arranged on the automobile ferry and connected with drivers of the electric propellers in a wired or wireless mode, and the external controller is used for controlling the positive and negative rotation and the rotating speed of the electric propellers.

When more than one electric propeller is arranged on each electric propeller, the electric propellers can be arranged on the sailing floating body side by side in the longitudinal direction or in the transverse direction, or arranged in a high-low staggered manner and in the front-back staggered manner, and the invention is not limited to the arrangement.

Furthermore, the electric propellers are angle-fixed electric propellers, the peripheral controller controls the rotating speed of the electric propellers of each pair of two electric propellers through differential speed, and further controls the running direction of the automobile ferry, and the differential speed control is a mature technology at present and has no technical obstacle to technicians in the industry. Of course, in the case of the solution that the fixed electric propeller is used as the electric propeller, the lateral movement (for example, the landing state) of the automobile ferry is difficult to be realized, so that the situation can still be realized by starting the angle-rotating electric propeller of the automobile ferry.

Normally, each electric propeller in the invention is docked under the condition that the automobile ferry is in shore, and certainly, other ships can be towed to the navigation position of the automobile ferry for docking operation. In order to facilitate the operation, it is more preferable that a cockpit is provided on the navigation floating body of each electric propeller, and an internal controller electrically connected to a driver of the electric propeller is provided in the cockpit, and the internal controller is used for controlling the forward and reverse rotation and the rotation speed of the electric propeller. The design of cockpit makes things convenient for personnel directly to control single electric propulsor implementation, also is convenient for the delivery personnel to carry out the butt joint operation of navigation body and car ferryboat simultaneously and peripheral hardware controller and electric screw driver's connection debugging operation.

Further, the electric propeller adopts the existing angle rotating type electric propeller capable of rotating 360 degrees, and the external controller can also control the steering angle of the angle rotating type electric propeller so as to control the driving direction of the electric propeller or the automobile ferry driven by the electric propeller. It should be said that the design that the electric propeller on the electric propeller also adopts the electronic propeller of angle rotation formula has given electric propeller's own sufficient navigation freedom, makes things convenient for its butt joint with the car ferry, and the butt joint of car ferry when especially being favorable to the navigation (not the state of being against the shore). The control of the navigation direction of the electric propeller obviously can control the navigation direction of the automobile ferry driven by the electric propeller, and is particularly convenient for controlling the transverse movement of the automobile ferry, because the electric propeller of the existing automobile ferry is the angle-rotating electric propeller capable of rotating 360 degrees. Alternatively, even if the electric propeller a uses the angle rotation type electric propeller, the rotation speed of the electric propeller of each pair of two electric propellers can be controlled at a different speed by the external controller, thereby controlling the traveling direction of the automobile ferry.

Of course, the electric propeller, whether it is an angle-fixed electric propeller or an angle-rotating electric propeller, is a mature technology at present, and the technologies of the driver and the connection control between the driver and the external controller are well known in the industry.

On the basis, in order to further simplify the structural design of a single electric propeller, an angle-rotating electric propeller is preferably designed, and the structure of the angle-rotating electric propeller is as follows:

the electric propeller comprises a propeller, a propeller driving mechanism, a steering rod and a steering rod rotation driving mechanism; the steering rod is rotatably assembled at the lower part of the navigation floating body, and the propeller is transversely and rotatably assembled at the lower part of the steering rod; the propeller driving mechanism comprises a shell, a propelling motor, a planetary gear speed reducing mechanism, a propeller driving longitudinal shaft, a propeller driving transverse shaft and a bevel gear transmission mechanism; the outer shell is fixed on the upper part of the navigation floating body, the propulsion motor is fixed on the outer shell, the output shaft of the propulsion motor is connected with a propeller driving longitudinal shaft arranged in a steering rod through a planetary gear speed reducing mechanism arranged in the outer shell, the propeller driving longitudinal shaft is connected with a propeller driving transverse shaft through a bevel gear transmission mechanism, and the propeller driving transverse shaft is connected with a propeller; the steering rod rotation driving mechanism comprises a direction motor, a steering rod connecting shaft, a steering worm wheel and a steering worm; the steering rod is fixed with a steering rod connecting shaft positioned in the shell, the steering rod connecting shaft is fixed with a steering worm wheel, the direction motor is fixed on the shell, and the output shaft of the direction motor is matched with the steering worm wheel through a steering worm.

More preferably, the navigation floating body is provided with a cockpit, the cockpit is internally provided with an internal controller which is electrically connected with a driver of the electric propeller, and the internal controller is used for controlling the positive and negative rotation, the rotating speed and the steering angle of the electric propeller. Similarly, the design of the cockpit facilitates direct control of the electric propeller by personnel, and meanwhile, the design is convenient for the carrying personnel to carry out butt joint operation of the navigation floating body and the automobile ferry and connection debugging operation of the external controller and the electric propeller driver.

Further, the detachable connecting mechanism is one of a spring buckle ring mechanism, a buckle mechanism, a loop bar mechanism, a manual mechanical locking mechanism, an electric mechanical locking mechanism and an electromagnetic locking mechanism, and comprises a male end connecting mechanism fixed on the navigation floating body and a female end connecting mechanism which is used for being fixed with the hull of the automobile ferry and matched with the male end connecting mechanism, or the detachable connecting mechanism comprises two connecting frames or connecting plates which are respectively fixed on the navigation floating body and the hull of the automobile ferry, and the two connecting frames or connecting plates are connected and fixed through bolts or binding ropes.

The detachable connecting mechanism is designed to facilitate the quick butt joint and reliable fixation between the externally-hung electric propulsion device and the automobile ferry. The design forms of the male end connecting mechanism and the female end connecting mechanism and the matching structures of the male end connecting mechanism and the female end connecting mechanism are various and are common quick connecting mechanisms in the industry at present, and the list is not exhaustive.

Taking the existing snap ring mechanism as an example, the snap ring mechanism is composed of a snap ring body and a connecting ring or a connecting rod matched with the snap ring body, wherein the snap ring body is composed of a U-shaped buckle and two elastic overturning blocks which are symmetrically abutted and arranged at the opening part of the U-shaped buckle through a torsion spring and a pivot. After the connecting rod is squeezed open and the two elastic overturning blocks are abutted into the U-shaped buckle, the two elastic overturning blocks are closed again and are fixed with the connecting rod. The spring buckle body is used as a male end connecting mechanism to be fixed or integrally designed on the navigation floating body, and the connecting ring or the connecting rod is used as a female end connecting mechanism to be fixed on a ship body of the automobile ferry. Therefore, the connection can be completed only by clamping the connecting ring or the connecting rod into the spring retaining ring body.

Or taking the existing buckle mechanism as an example, the buckle mechanism is composed of a connecting rod and a U-shaped buckle for the interference clamping of the connecting rod, the U-shaped buckle is used as a male end connecting mechanism to be fixed or integrally designed on the navigation floating body, and the connecting rod is used as a female end connecting mechanism to be welded on the hull of the automobile ferry. Therefore, the connection can be completed only by clamping the connecting rod into the U-shaped buckle.

Furthermore, at least more than three detachable connecting mechanisms are adopted between each electric propeller and the automobile ferry, and at least three detachable connecting mechanisms are distributed in a triangular mode in the longitudinal plane. The design purpose of the three-angle distribution of the detachable connecting mechanism is to prevent the electric propeller from being overturned laterally when the automobile ferry sails transversely, and improve the connection stability of the electric propeller and the automobile ferry hull. It should be noted that, for a single detachable connection mechanism, when the male end connection mechanism and the female end connection mechanism are designed to be wider in the transverse direction and longer in the longitudinal direction, the same restriction function as above can be achieved, and the electric propeller is prevented from being overturned in the lateral direction.

Furthermore, the navigation floating body is provided with a charging module connected with the power battery, the charging module comprises an electric quantity monitoring module, and the peripheral controller is provided with a low electric quantity warning device and an electric quantity display device which are electrically connected with the electric quantity monitoring module.

Further, the automobile ferry in the invention refers to a fuel-powered automobile ferry, or an electrically-driven automobile ferry with a built-in battery, or an unpowered ferry barge.

The wired connection mode of the peripheral controller and the electric propeller driver in the invention refers to that the communication lines of the peripheral controller and the electric propeller driver are directly connected in a cable mode with an electric connector, and the wireless connection mode refers to that the remote connection control is carried out through infrared communication and radio communication or by means of the existing network communication modes such as wifi, 4G, 5G and the like.

The external controller and the internal controller in the invention can be made into a traditional mechanical control device consisting of a steering wheel and a power propelling rod, or can be made into liquid crystal screen touch equipment.

The invention has the advantages that:

1) the invention belongs to an independent external hanging device, which can be used as a navigation power device of any existing automobile ferry, and particularly can close a fuel driving device after a fuel-powered automobile ferry is applied to the invention, thereby realizing zero-emission noiseless work and well solving the pollution problem and the noise problem of the existing automobile ferry. Compared with the design scheme of the conventional electric automobile ferry with the built-in battery, the invention has the characteristic of quick replacement, and can continuously provide sailing driving force for the ship body, thereby effectively solving the problem of endurance of the ferry and reducing the cost input of purchasing and replacing the expensive built-in battery for the automobile ferry.

2) The invention can be widely applied to the prior automobile ferry in any water areas such as inland rivers, lakes, reservoirs and the like, has wide application range, can gradually reduce the use of the prior automobile ferry powered by fuel particularly after being applied to a motorless ferry barge, and well solves the pollution problem and the noise problem of the prior automobile ferry.

3) Compared with the automobile ferry driven by the fuel oil, the traditional automobile ferry driven by the fuel oil has the advantage that the annual operation cost is greatly saved on the premise of the same power (driving power) and use conditions (round-trip times and round-trip voyage). Taking the existing automobile ferry driven by 800 tons of diesel oil as an example, two 200kw diesel engines are adopted, and if the scheme adopts a pair of electric propellers, each electric propeller is provided with two 100kw motors as power and is provided with 16 groups of batteries for supplying energy, each group of batteries has 100 degrees of electricity and has a value of 10 ten thousand yuan, so the energy consumption cost of the two groups of batteries is compared as shown in the following table:

as can be seen from the above table, the electricity cost per unit mileage is about 28% of the oil cost, and the saving is about 72%. Each group of batteries has 100 DEG electricity and the value is 10 ten thousand yuan, and each electric propeller is provided with 16 groups of batteries and the total value is 160 ten thousand yuan. The value of 16 groups of batteries is 160 ten thousand yuan, and the depreciation cost of each year is 80 ten thousand yuan according to the calculation of 3000 times of the service life of the batteries. The automobile ferry driven by the present invention can save about 174 ten thousand yuan each year by operating for 300 days a year.

4) When the quick-release type connecting mechanism is actually used, only a small change is made on the hull of the existing automobile ferry, the female end connecting mechanism or the connecting plate or the connecting support of the quick-release type connecting mechanism is added, and the external controller is added, so that the quick-release type connecting mechanism is low in modification cost and easy to implement and popularize.

5) When the invention is used, the power and the operating mechanism of the prior automobile ferry are not changed at all, and when the externally-hung electric propulsion device is not used, the automobile ferry can still sail freely and is still driven by the original driver without the operation of professional personnel.

6) The present invention is very convenient to butt joint and assemble and disassemble with the existing automobile ferry, and can be replaced in several minutes under the condition of no ship stopping, so that the cruising ability is greatly improved.

7) Compared with the existing automobile ferry which is an independent external hanging device, the automobile ferry can be disconnected in case of accidental ignition or even explosion of the power battery in the single electric propeller, and the automobile ferry is not endangered.

Drawings

The invention is further described with reference to the following figures and examples:

FIG. 1 is a front view of the present invention mounted on a prior art diesel powered automotive ferry;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a schematic perspective view of FIG. 1;

FIG. 4 is a front view of a single electric thruster;

FIG. 5 is a perspective view of a single electric thruster;

FIG. 6 is a schematic view of a single three-dimensional structure of a diesel-powered automotive ferry;

FIG. 7 is a sectional view of the structure of the angle-rotating electric propeller;

FIG. 8 is a block diagram of a circuit connection structure of the peripheral controller and the electric thrusters on both sides;

FIG. 9 is a perspective view of a second embodiment of a releasable attachment mechanism;

FIG. 10 is a perspective view of a third embodiment of a releasable attachment mechanism;

fig. 11 is a perspective view of a detachable connecting mechanism in a fourth embodiment.

Wherein: A. an electric thruster; 1. sailing the floating body; 1a, a cockpit; 2. an electric propeller; 3. A power battery; 4. an automobile ferry; 5. a peripheral controller; 6. a steering lever; 7. a propeller; 8. a housing; 9. a propulsion motor; 10. a planetary gear reduction mechanism; 11. a propeller drive longitudinal axis; 12. the propeller drives the cross shaft; 13. a bevel gear transmission mechanism; 14. a direction motor; 15. a steering rod connecting shaft; 16. A steering worm gear; 17. a steering worm; 18. a connecting rod; 19. a spring snap ring body; 19a, a U-shaped buckle; 19b, an elastic overturning block; 20. an electrical connector; 21. a driver; 22. an X-shaped clamp body; 23. A clamp body opening and closing motor; 24. a nut block; 25. a pivotal shaft; 26. a U-shaped lock hook; 27. an electric lead screw pair; 28. a central support; 29. a gear drive motor; 30. a gear; 31. a rack guide rail; 32. a rack.

Detailed Description

Example (b): the externally-mounted electric propulsion device for the ferry of the automobile provided by the invention is described in detail below with reference to fig. 1 to 8 as follows:

first, as shown in fig. 1 to fig. 3, the automobile ferry 4 in the present embodiment is an existing automobile ferry driven by 800 tons of diesel oil, and the external electric propulsion device is composed of two electric thrusters a symmetrically arranged on the left and right sides of the automobile ferry 4 and an external controller arranged on the automobile ferry 4 and connected to the electric propellers 2 for controlling the two electric thrusters a to operate.

Referring again to fig. 4, each of the electric thrusters a has a sailing floating body 1, and the sailing floating body 1 of the present embodiment is designed in a boat shape with a cockpit 1a provided in the middle; an electric propeller 2 is all installed to navigation body 1 front and back end, and two electric propellers 2 are connected with same driver (omitting in the figure), by its synchro control (omitting in the figure), and navigation body 1 is inside to be established the battery compartment simultaneously, puts into power battery 3 and for electric propeller 2 and driver energy supply.

In the present embodiment, each electric propeller 2 is an angle-rotating electric propeller 6 capable of rotating 360 °, and as shown in fig. 7, the angle-rotating electric propeller 6 is specifically configured as follows: the steering mechanism consists of a propeller 7, a propeller driving mechanism, a steering rod 6 and a steering rod rotation driving mechanism; the steering rod 6 is rotatably assembled at the lower part of the navigation floating body 1, and the propeller 7 is transversely and rotatably assembled at the lower part of the steering rod 6; the propeller driving mechanism comprises a shell 8, a propelling motor 9, a planetary gear speed reducing mechanism 10, a propeller driving longitudinal shaft 11, a propeller driving transverse shaft 12 and a bevel gear transmission mechanism 13; the outer casing 8 is fixed on the upper part of the navigation floating body 1, the propulsion motor 9 is fixed on the outer casing 8, the output shaft of the propulsion motor is connected with a propeller driving longitudinal shaft 11 arranged in the steering rod 6 through a planetary gear speed reducing mechanism 10 arranged in the outer casing 8, the propeller driving longitudinal shaft 11 is connected with a propeller driving transverse shaft 12 through a bevel gear transmission mechanism 13, and the propeller driving transverse shaft 12 is connected with the propeller 7; the steering rod rotation driving mechanism comprises a direction motor 14, a steering rod connecting shaft 15, a steering worm wheel 16 and a steering worm 17; a steering rod connecting shaft 15 positioned in the shell 8 is fixed on the steering rod 6, a steering worm wheel 16 is fixed on the steering rod connecting shaft 15, a direction motor 14 is fixed on the shell 8, and an output shaft of the direction motor is matched with the steering worm wheel 16 through a steering worm 17.

Referring to fig. 5 and 6, the sailing float 1 of the electric propulsion device a on each side of the present embodiment is connected to the side of the existing automobile ferry 4 through three spring-buckle mechanisms disposed in a triangular manner in the longitudinal plane, so as to push the automobile ferry 4 to operate. In this embodiment, each spring buckle mechanism is composed of a spring buckle body 19 and a connecting rod 18 matched with the spring buckle body 19, and the spring buckle body 19 is composed of a U-shaped buckle 19a and two symmetrical and abutting elastic turning blocks 19b which are arranged at the mouth of the U-shaped buckle 19a through a torsion spring and a pivot. When the connecting rod 18 is pushed open the two elastic turning blocks 19b to abut into the U-shaped buckle 19a, the two elastic turning blocks 19b are closed again, thereby being fixed with the connecting rod 18. The spring buckle body 19 is used as a male end connecting mechanism and welded on the navigation floating body 1, and the connecting rod 18 is used as a female end connecting mechanism and welded on the hull of the automobile ferry 4. This is accomplished by merely snapping the connecting rod 18 into the snap ring body 19.

Referring to fig. 8, the peripheral controller 5 in the present embodiment is a conventional mechanical control device composed of a steering wheel and a power propulsion lever, and has a dashboard for displaying the speed and heading. The control circuit of the peripheral controller 5 is connected to the drivers 21 of the electric propellers 2 of the electric propellers a on both sides through two electric connectors 20, respectively, for synchronously controlling the forward and reverse rotation and the rotation speed of the four electric propellers 2 on both sides, and the steering angle thereof. In this embodiment, the internal controller is disposed in the cockpit 1a, and the configuration and arrangement of the internal controller is the same as those of the external controller 5, which is not described again, and is convenient for the personnel to control the electric propeller a.

When the sailing floating bodies 1 of the electric propellers A at two sides are butted with the hull of the existing automobile ferry 4, the external controller 5 is directly arranged in the cockpit of the automobile ferry 4 and is controlled by the driver of the original automobile ferry 4. In addition, in this embodiment, the navigation floating body 1 is provided with a charging module connected to the power battery 3, the charging module includes an electric quantity monitoring module, and a dashboard of the peripheral controller 5 is provided with a low electric quantity warning device and an electric quantity display device electrically connected to the electric quantity monitoring module.

The present 800-ton diesel-driven automobile ferry 4 adopted in this embodiment adopts two 200kw diesel engines, and the pair of electric thrusters a of this embodiment each has two 100kw propulsion motors 9 as power, and is equipped with 16 groups of batteries to supply power, and each group of batteries has 100 degrees of electricity, and has a value of 10 ten thousand yuan. Then the energy consumption cost comparison between the original diesel driving scheme and the automobile ferry adopting the driving scheme of the embodiment is as follows:

Example 2: embodiment 2 is the same as embodiment 1 in design structure (electric thruster a, electric propeller 2, and peripheral controller 5) as a whole, except for the difference in the detachable connection mechanism between the electric thruster a and the automobile ferry 4. Specifically, as shown in fig. 9, the detachable connection mechanism in this embodiment is an electromechanical locking mechanism, and two electromechanical locking mechanisms arranged in parallel at equal heights in the transverse direction are used to complete the connection between the navigation floating body 1 and the automobile ferry 4.

As shown in fig. 9, the single electromechanical locking mechanism is composed of a connecting rod 18 and an X-shaped electric clamp locking device, the X-shaped electric clamp locking device is composed of an X-shaped clamp body 22 and a clamp body opening and closing motor 23 connected to drive the X-shaped clamp body 22 to open and close, one of two clamping arms of the X-shaped clamp body 22 is pivotally provided with a nut block 24, the other clamping arm is fixed with the clamp body opening and closing motor 23, and an output shaft of the clamp body opening and closing motor 23 is provided with a threaded section matched with the nut block 24. The X-shaped electric clamping lock device is arranged on the navigation floating body 1 as a male end external connection mechanism, namely a pivot shaft 25 at the center of an X-shaped clamping body 22 is welded and fixed on the navigation floating body 1, and a connecting rod 18 is welded on an automobile ferry 4 as a female end external connection mechanism. Compared with the manually operated buckling mechanism in the embodiment 1, the operation is obviously more convenient and labor-saving.

Example 3: embodiment 3 is the same as the design structure of embodiment 1 (electric thruster a, electric propeller 2, and peripheral controller 5) as a whole, except for the difference in the detachable connection mechanism between the electric thruster a and the automobile ferry 4. As shown in fig. 10, the detachable connection mechanism in this embodiment is still an electromechanical locking mechanism, and two electromechanical locking mechanisms arranged in parallel at equal heights in the transverse direction are still used to complete the connection between the navigation floating body 1 and the automobile ferry 4.

As shown in fig. 10, the single electromechanical locking mechanism of the present embodiment is composed of a connecting rod 18 and an electric transverse-moving locking hook device, the electric transverse-moving locking hook device is composed of a U-shaped locking hook 26 and an electric screw pair 27 connected to drive the U-shaped locking hook 26 to move transversely, and a movable nut block of the electric screw pair 27 is welded and fixed to the U-shaped locking hook 26.

The electric transverse moving lock hook device is arranged on the navigation floating body 1 as a male end external connection mechanism, namely, the electric screw rod pair 27 is welded and fixed on the navigation floating body 1, and the connecting rod 18 is still welded on the automobile ferry 4 as a female end external connection mechanism.

Example 4: embodiment 4 is the same as the design structure of embodiment 1 (electric thruster a, electric propeller 2, and peripheral controller 5) as a whole, except for the difference in the detachable connection mechanism between the electric thruster a and the automobile ferry 4. As shown in fig. 11, the detachable connection mechanism in this embodiment is still an electromechanical locking mechanism, the female connection mechanism is two connection rods 18 welded on the automobile ferry 4, and the male connection mechanism is a dual electric locking hook device provided on the navigation floating body 1 and capable of locking the two connection rods 18 at the same time. As shown in fig. 11, the dual electric locking device is located between two connecting rods 18, and is composed of a central bracket 28, a gear driving motor 29, a gear 30, two racks 32 disposed in corresponding rack guide rails 31, and a U-shaped locking hook 26. The gear driving motor 29 is disposed above the central bracket 28, and has an output shaft with a fixed gear 30, and two rack rails 31 are disposed in a central symmetry manner with respect to a gear 32 and are parallel to each other. A rack 32 in a rack rail 31 engages with the gear 30. The extended section of the end of the rack 31 is welded and fixed with a U-shaped lock hook 26 which respectively acts with the two connecting rods 18. Compared with the detachable connecting mechanisms related to the previous embodiments 1-3, the detachable connecting mechanism in the embodiment has higher mechanism execution efficiency, and can obtain higher connection reliability and stability by being used alone.

It should be understood that the above-mentioned embodiments are only illustrative of the technical concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All modifications made according to the spirit of the main technical scheme of the invention are covered in the protection scope of the invention.

Claims

1. An externally-hung electric propulsion device for an automobile ferry is characterized by comprising a plurality of pairs of electric propellers (A), wherein two electric propellers (A) in each pair are respectively arranged at the left side and the right side of the automobile ferry, each electric propeller (A) comprises a navigation floating body (1), more than one electric propeller (2) arranged on the navigation floating body (1) and a driver (21) thereof, and a power battery (3) arranged in the navigation floating body (1) and used for supplying power to the electric propellers (2) and the driver (21) thereof; the navigation floating body (1) is connected to the automobile ferry (4) through a detachable connecting mechanism; the automobile ferry is characterized by further comprising an external controller (5) which is arranged on the automobile ferry (4) and connected with a driver (21) of the electric propeller (2) of each electric propeller in a wired or wireless mode, wherein the external controller (5) is used for controlling the positive and negative rotation and the rotating speed of the electric propeller (2).

2. The externally-hung electric propulsion device for the ferry of the automobile as claimed in claim 1, characterized in that the electric propellers (2) are fixed-angle electric propellers, and the peripheral controller controls the rotation speed of the electric propellers (2) of each pair of two electric propellers (A) through differential speed, so as to control the driving direction of the ferry of the automobile.

3. The externally-hung electric propulsion device for the ferry of the automobile as claimed in claim 1, wherein the electric propeller (2) is an angle-rotation type electric propeller, and the external controller (5) can also control the steering angle of the angle-rotation type electric propeller so as to control the driving direction of the electric propeller (A) itself or the automobile ferry (4) driven by the electric propeller or the external controller controls the rotating speed of the electric propeller (2) of each pair of two electric propellers (A) through differential speed so as to control the driving direction of the automobile ferry.

4. The externally-hung electric propulsion device for the ferry of the automobile as claimed in claim 3, characterized in that the electric propeller (2) is an angle-rotating electric propeller, comprising a propeller (7), a propeller driving mechanism, a steering rod (6) and a steering rod rotating driving mechanism; the steering rod (6) is rotatably assembled at the lower part of the navigation floating body (1), and the propeller (7) is transversely and rotatably assembled at the lower part of the steering rod (6); the propeller driving mechanism comprises a shell (8), a propelling motor (9), a planetary gear speed reducing mechanism (10), a propeller driving longitudinal shaft (11), a propeller driving transverse shaft (12) and a bevel gear transmission mechanism (13); the outer shell (8) is fixed on the upper part of the navigation floating body (1), the propulsion motor (9) is fixed on the outer shell (8), the output shaft of the propulsion motor is connected with a propeller driving longitudinal shaft (11) arranged in the steering rod (6) through a planetary gear speed reducing mechanism (10) arranged in the outer shell (8), the propeller driving longitudinal shaft (11) is connected with a propeller driving transverse shaft (12) through a bevel gear transmission mechanism (13), and the propeller driving transverse shaft (12) is connected with the propeller (7); the steering rod rotation driving mechanism comprises a direction motor (14), a steering rod connecting shaft (15), a steering worm wheel (16) and a steering worm (17); a steering rod connecting shaft (15) positioned in the shell (8) is fixed on the steering rod (6), a steering worm wheel (16) is fixed on the steering rod connecting shaft (15), a direction motor (14) is fixed on the shell (8), and an output shaft of the direction motor is matched with the steering worm wheel (16) through a steering worm (17).

5. The externally-hung electric propulsion device for the automobile ferry according to claim 1, characterized in that the detachable connection mechanism is one of a snap ring mechanism, a buckle mechanism, a loop bar mechanism, a manual mechanical latch mechanism, an electromechanical latch mechanism and an electromagnetic latch mechanism, and comprises a male end connection mechanism fixed on the navigation floating body (1) and a female end connection mechanism used for being fixed with the hull of the automobile ferry (4) and matched with the male end connection mechanism, or the detachable connection mechanism comprises two connection frames or connection plates respectively fixed on the hull of the navigation floating body (1) and the hull of the automobile ferry (4), and the two connection frames or connection plates are connected and fixed through bolts or binding ropes.

6. The externally-hung electric propulsion device for ferry wheels of automobiles as claimed in claim 1 or 5, wherein at least three or more detachable connection mechanisms are adopted between each electric propeller (A) and the ferry wheel (4), and at least three of the detachable connection mechanisms are distributed in a triangular manner in the longitudinal plane.

7. The externally-hung electric propulsion device for the ferry of the automobile as claimed in claim 2, characterized in that the navigation floating body (1) is provided with a cockpit (1 a), the cockpit (1 a) is internally provided with an internal controller electrically connected with the driver (21) of the electric propeller (2), and the internal controller is used for controlling the positive and negative rotation and the rotating speed of the electric propeller (2).

8. The externally-hung electric propulsion device for the ferry of the automobile as claimed in claim 3, characterized in that the navigation float (1) is provided with a cockpit (1 a), the cockpit (1 a) is internally provided with an internal controller electrically connected with the driver (21) of the electric propeller (2), and the internal controller is used for controlling the positive and negative rotation and the rotating speed as well as the steering angle of the electric propeller (2).

9. The externally-hung electric propulsion device for the ferry of the automobile as claimed in claim 1, wherein the sailing float (1) is provided with a charging module connected with the power battery (3), the charging module comprises a power monitoring module, and the peripheral controller (5) is provided with a low power alarm device and a power display device electrically connected with the power monitoring module.

10. The externally-hung electric propulsion device for the automobile ferry according to claim 1, characterized in that the automobile ferry (4) is a fuel-powered automobile ferry, or an electrically-driven automobile ferry with a built-in battery, or an unpowered ferry barge.