Manual steering type electric propulsion stern hanging machine

Abstract

The utility model relates to the technical field of marine propellers, and discloses a manual steering type electric propulsion stern outboard motor. Comprising a mounting frame, a tilting and swinging mechanism which is mounted on the mounting frame and has a rotational degree of freedom in the vertical direction, a steering mechanism which is mounted on the tilting and swinging mechanism and has a rotational degree of freedom in the horizontal direction, a propeller fixed below the steering mechanism, and a control system for controlling and adjusting the speed of the propeller, the control rod is horizontally swung to enable the steering mechanism to drive the thruster to rotate so as to change the propelling direction, the thruster is a rim type thruster, a rim type permanent magnet motor is integrated on the thruster, a propeller of the thruster is installed on a rotor of the rim type permanent magnet motor, and the control system is electrically connected with the rim type permanent magnet motor. The utility model aims to provide the manual steering type electric propulsion stern outboard motor which is small in size, light in weight, high in propulsion efficiency, small in noise vibration, long in service life and easy to overhaul and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of marine propellers, in particular to a manually-steering electric propulsion stern engine. Background Art

[0002] The stern motor (or outboard motor) is a ship propulsion device installed at the stern of a boat to provide thrust for the boat to travel. In the prior art, electric motors or diesel engines are mostly used as power sources. After being decelerated by a gear reduction device, the propeller is driven to rotate and generate thrust. The propeller is driven to rotate by gears and shafts, which has a complex structure, low efficiency, large size, heavy weight, and inconvenient installation and maintenance. In addition, whether it is the operation of the diesel engine or the vibration of the gear meshing, it will cause huge noise and vibration.

[0003] In addition, the propellers used in boats are immersed in water for a long time, which is not only difficult to repair when a fault occurs, but also easy to corrode parts and breed marine organisms, thereby increasing the rotation resistance of the propeller and reducing propulsion efficiency, seriously affecting the service life of the propeller and increasing the use and maintenance costs of the boat. Utility Model Content

[0004] The purpose of the utility model is to solve the above-mentioned problems and provide a manually-steering electric propulsion stern engine, which has the characteristics of small size, light weight, high propulsion efficiency and low noise and vibration. When not working, the propeller can be tilted out of the water to reduce corrosion caused by long-term immersion, extend its service life, and also facilitate overhaul and maintenance.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is: a manually-steering electric propulsion stern engine, including a mounting frame for connecting and fixing to a ship, a tilting mechanism installed on the mounting frame and having a vertical rotational freedom, a steering mechanism installed on the tilting mechanism and having a horizontal rotational freedom, a propeller fixed under the steering mechanism for providing the ship's navigation thrust, and a control system for controlling and adjusting the propeller speed, wherein the steering mechanism is provided with a joystick, and the horizontal swinging joystick can make the steering mechanism drive the propeller to rotate (i.e., rudder), thereby changing the propulsion direction, and the propeller is a rim-type propeller, and a rim-type permanent magnet motor is integrated on the propeller, and the propeller of the propeller is installed on the rotor of the rim-type permanent magnet motor.

[0006] As an improvement, the mounting frame includes a front plate, a left plate and a right plate respectively installed on the left and right sides of the front plate, a door-shaped opening is provided at the bottom of the left and right plates, and a locking handle is installed at the front end, and the clamping part of the locking handle extends into the opening.

[0007] As an improvement, the tilting mechanism includes a rotating shaft, a torsion spring sleeved on the rotating shaft, a rotating seat installed on the rotating shaft and capable of rotating around the rotating shaft, and a latch rod for positioning the rotating seat. One free end of the torsion spring is fixed on the mounting frame and the other free end is fixed on the rotating seat.

[0008] As an improvement, a pin hole is provided on at least one side of the left plate and / or right plate and the rotating seat. When the rotating seat is rotated downward to the extreme position, the pin hole on the rotating seat coincides with the axis of the pin hole on the left plate and / or right plate.

[0009] As an improvement, the steering mechanism includes an adapter shaft, a rudder plate parallel to the adapter shaft, a rudder shaft fixed in the rudder plate, and a clamp fixed on the adapter shaft and clamped on the outer surface of the rudder plate. The adapter shaft has the freedom to rotate around its axis, and one end of the joystick is connected to the top of the adapter shaft and cannot rotate in the horizontal direction.

[0010] As an improvement, a limiting groove is provided on the top of the adapter shaft, one end of the joystick is installed in the limiting groove, and the connecting end of the joystick is provided with two positioning holes along its axial direction. Pin holes are provided at positions corresponding to the positioning holes on both sides of the limiting groove, and a spring positioning pin is installed in the pin hole, and the free end of the spring positioning pin can extend into the positioning hole.

[0011] As an improvement, the adapter shaft is a hollow shaft and its inner diameter is larger than the outer diameter of the joystick. A limit block is provided at the free end of the joystick. When the joystick is inserted into the adapter shaft, the limit block is stuck at the top end of the adapter shaft.

[0012] As an improvement, the upper end of the rudder shaft is fixed in the rudder plate by a limit cover, and the top of the propeller is provided with a flange and a connecting plate, the flange is connected to the lower end of the rudder shaft, and the connecting plate is connected to the outer circumference of the rudder shaft.

[0013] As an improvement, the control system includes a control panel, a speed control handle, a control circuit board and a frequency converter. The control panel is arranged on the top of the steering mechanism, the control circuit board and the frequency converter are arranged inside the steering mechanism, the speed control handle is arranged at the free end of the joystick, the control panel, the speed control handle and the frequency converter are all electrically connected to the control circuit board, and the propeller is electrically connected to the frequency converter.

[0014] As an improvement, a first accommodating chamber is provided at the top of the inner cavity of the rudder plate and a second accommodating chamber is provided at the bottom. The control circuit board and the inverter are arranged in the first accommodating chamber, the connecting plate is located in the second accommodating chamber, and the bottom of the first accommodating chamber is a sealing structure.

[0015] Combined with the above technical solutions, compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model provides a manually-steering electric propulsion stern engine, which adopts a rim-type propeller as a power source, eliminates the transmission gear, and directly drives the propeller by the rim-type permanent magnet motor. It has the characteristics of high propulsion efficiency, low noise and vibration, high reliability, small size and light weight. When the ship is not working, the propeller can be tilted out of the water through a tilting mechanism to prevent the propeller from being immersed in water for a long time, which may cause corrosion of parts and breeding of marine organisms, thereby extending the service life of the propeller. The propeller can also be tilted out of the water during inspection and maintenance, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a manually-steering electric propulsion stern engine.

[0018] Figure 2 yes Figure 1 A partial enlarged schematic diagram of position A in the middle.

[0019] Figure 3 The utility model is a cross-sectional view of a manually-steering electric propulsion stern engine.

[0020] Figure 4 It is a schematic diagram of the connection structure between the rudder shaft and the propeller described in the utility model.

[0021] Figure 5 It is a structural schematic diagram of the hubless rim type propeller described in the utility model.

[0022] Figure 6 It is a structural schematic diagram of the hub-rim type propeller described in the utility model.

[0023] Figure 7 It is a schematic diagram of the tilting state of the tilting mechanism described in the utility model.

[0024] Figure 8 It is a schematic diagram of the position of the joystick of the utility model when it is retracted.

[0025] Among them: 1-steering mechanism, 11-adapter shaft, 111-limiting groove, 112-pin hole, 12-clamp, 13-spring positioning pin, 14-control lever, 141-positioning hole, 142-limiting block, 15-rudder plate, 151-first accommodating chamber, 152-second accommodating chamber, 16-rudder shaft, 17-limiting cover, 2-thruster, 21-housing, 22-propeller, 23-hub, 24-flange, 25-connecting plate, 26-rim type permanent magnet motor, 3-mounting frame, 31-front plate, 32-left side plate, 321-pin hole, 33-right side plate, 34-locking handle, 4-tilt mechanism, 41-rotating shaft, 42-torsion spring, 43-rotating seat, 431-pin hole, 44-pin rod, 5-control system, 51-control panel, 52-speed control handle, 53-control circuit board, 54-frequency converter. DETAILED DESCRIPTION

[0026] In order to explain the technical features and the achieved purposes and effects of the present invention in detail, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] Please see attached Figure 1-8 A manually-steering electric propulsion stern engine comprises a mounting frame 3 for being connected and fixed to a ship, a tilting mechanism 4 mounted on the mounting frame 3 and having a vertical rotational freedom, a steering mechanism 1 mounted on the tilting mechanism 4 and having a horizontal rotational freedom, a propeller 2 fixed under the steering mechanism 1 for providing a ship's navigation thrust, and a control system 5 for controlling and adjusting the speed of the propeller 2. The steering mechanism 1 is provided with a joystick 14, and the horizontal swinging joystick 14 can make the steering mechanism 1 drive the propeller 2 to rotate, thereby changing the propulsion direction. The propeller 2 is a rim-type propeller, and a rim-type permanent magnet motor 26 is integrated on the propeller 2. The propeller 2 of the propeller 2 is mounted on the rotor of the rim-type permanent magnet motor 26. The propeller 2 can be a hubless rim-type propeller, in which case the propeller 22 is directly fixed to the inner circle of the rotor of the rim-type permanent magnet motor 26 by screws; it can also be a hub-type rim-type propeller, in which case one end of the propeller 22 blade is fixed to the inner circle of the rotor of the rim-type permanent magnet motor 26, and the other end is fixed to the hub 23, and both ends of the hub 23 are connected to the outer casing 21 of the propeller 2.

[0028] In the above embodiment, the stern motor is fixed on the stern board of the boat through the mounting frame 3, and the tilting mechanism 4 can rotate upward around the mounting frame 3 to make the propeller 2 leave the water surface, and rotate downward to make the propeller 2 extend into the water to provide thrust for the ship's navigation. When the ship is not working, the propeller 2 is tilted off the water surface to prevent the propeller 2 from being immersed in water for a long time, which causes corrosion of parts and breeding of marine organisms, thereby extending the service life of the propeller. When the stern motor fails or is overhauled, the propeller 2 can also be tilted out of the water surface to facilitate maintenance and overhaul. The propulsion mode of using the rim-type permanent magnet motor 26 to drive the propeller 22 to rotate can effectively reduce the volume of the propeller, reduce the weight of the propeller, improve the space utilization rate and propulsion efficiency, and reduce the noise and vibration generated during the propulsion process of the ship. During the navigation of the ship, the operator can change the propulsion direction of the propeller 2 by swinging the joystick 14 to drive the steering mechanism 1 and the propeller 2 to rotate horizontally to achieve steering, and adjust the speed or direction of the rim-type permanent magnet motor 26 through the control system 5 to change the speed and heading of the ship. The use of a hubless rim-type propeller can make the weight of the propeller 2 lighter, and the use of a hub-rim-type propeller can make the blade structure of the propeller 22 have better strength and make it more convenient to install the blade.

[0029] Preferably, the mounting frame 3 includes a front plate 31, a left plate 32 and a right plate 33 respectively installed on the left and right sides of the front plate 31, a door-shaped opening is provided at the bottom of the left plate 32 and the right plate 33, and a locking handle 34 is installed at the front end, and the clamping part of the locking handle 34 extends into the opening.

[0030] In the above embodiment, the door-shaped opening can facilitate the transom hooking on the transom during installation. After the transom hooking on the transom, it is only necessary to rotate the locking handle 34 to clamp the transom between the pressing part of the locking handle 34 and the front plate 31, which is simple and quick to operate.

[0031] Preferably, the tilting mechanism 4 includes a rotating shaft 41, a torsion spring 42 sleeved on the rotating shaft 41, a rotating seat 43 mounted on the rotating shaft 41 and capable of rotating around the rotating shaft 41, and a latch rod 44 for positioning the rotating seat 43, one free end of the torsion spring 42 is fixed on the mounting frame 3, and the other free end is fixed on the rotating seat 43. Specifically, the two free ends of the rotating shaft 41 are respectively mounted on the left plate 32 and the right plate 33, and the free end of the torsion spring 42 is fixed on the left plate or the right plate.

[0032] In the above embodiment, when the propeller 2 is working, the torsion spring 42 is in a compressed state, and the latch rod 44 fixes the rotating seat 43 on the left side plate 32 and / or the right side plate 33 so that the propeller 2 extends into the water; when the propeller 2 needs to be lifted out of the water, it is only necessary to pull out the latch rod 44, and the torque of the torsion spring 42 is released to push the rotating seat 43 to rotate upward, thereby driving the steering mechanism 1 and the propeller 2 to lift up and leave the water surface.

[0033] Preferably, a pin hole is provided on at least one side of the left side plate 32 and / or the right side plate 33 and the rotating seat 43. When the rotating seat 43 is rotated downward to the extreme position, the pin hole 431 on the rotating seat 43 coincides with the axis of the pin hole 321 on the left side plate 32 and / or the right side plate 33.

[0034] In the above embodiment, the pin holes are provided on the left side plate 32 and / or the right side plate 33 and the rotating seat 43 so as to position the rotating seat 43 more accurately.

[0035] Preferably, the steering mechanism 1 comprises an adapter shaft 11, a rudder plate 15 parallel to the adapter shaft 11, a rudder shaft 16 fixed in the rudder plate 15, and a clamp 12 fixed on the adapter shaft 11 and clamped on the outer surface of the rudder plate 15, wherein the adapter shaft 11 has the freedom to rotate around its axis, and one end of the joystick 14 is connected to the top of the adapter shaft 11 and cannot rotate in the horizontal direction. Specifically, the adapter shaft 11 is mounted on the rotating seat 43 and can rotate in the adapter seat 43, the clamp 12 is connected to the adapter shaft 11 by a key, and the free end of the clamp 12 is connected by a screw or bolt.

[0036] In the above embodiment, the rotating seat 43 is connected to the clamp 12 through the adapter shaft 11. The key connection between the clamp 12 and the adapter shaft 11 can enable the rudder plate 15 fixed at the other end of the clamp 12 and the joystick 14 connected to the top of the adapter shaft 11 to maintain consistency in horizontal rotation, thereby achieving the purpose of horizontally swinging the joystick 14 to drive the steering mechanism 1 and the propeller 2 to rotate horizontally and ultimately change the propulsion direction of the propeller 2.

[0037] Preferably, a limiting groove 111 is provided at the top of the adapter shaft 11, one end of the operating rod 14 is installed in the limiting groove 111, and the connecting end of the operating rod 14 is provided with two positioning holes 141 along its axial direction, and pin holes 112 are provided at positions corresponding to the positioning holes 141 on both sides of the limiting groove 111, and a spring positioning pin 13 is installed in the pin hole 112, and the free end of the spring positioning pin 13 can extend into the positioning hole 141.

[0038] In the above embodiment, when used to manipulate the steering, the joystick 14 is in a horizontal state, and the joystick 14 and the adapter shaft 11 are connected by a single hole. At this time, only one of the two ends of the positioning hole 141 has spring positioning pins 13 extending into the positioning hole 141, and the left and right side walls of the limit groove 111 can limit the left and right movement or shaking of the joystick 14. When the joystick 14 is rotated to a position colinear with the rotating shaft 11, the two positioning holes 141 of the joystick 14 are inserted into the spring positioning pins 13 to connect the joystick 14 and the adapter shaft 11 into one. At this time, after pulling out the latch rod 44, the rotating seat 43 can be rotated around the rotating shaft 41 by toggling the joystick 14 up and down, making the tilting process easier.

[0039] Preferably, the adapter shaft 11 is a hollow shaft and its inner diameter is larger than the outer diameter of the joystick 14 . A limit block 142 is provided at the free end of the joystick 14 . When the joystick 14 is inserted into the adapter shaft 11 , the limit block 142 is stuck at the top of the adapter shaft 11 .

[0040] In the above embodiment, the operating rod 14 is housed in the cavity at the center of the adapter shaft 11, which can reduce the space occupied during carrying and transportation, making carrying and transportation easier and more convenient.

[0041] Preferably, the upper end of the rudder shaft 16 is fixed in the rudder plate 15 through a limit cover 17, and the top of the housing 21 of the propeller 2 is provided with a flange 24 and a connecting plate 25, wherein the flange 24 is connected to the lower end of the rudder shaft 16, and the connecting plate 25 is connected to the outer circumference of the rudder shaft 16. Exemplarily, the limit cover 17 is connected to the rudder shaft 16 and the rudder plate 15 through screws, and the connecting plate 25 is connected to the outer circumference of the rudder shaft 16 through a clamp (not shown in the figure), and the outer circumference of the rudder shaft 16 can be processed to be flat to prevent the rudder shaft 16 from rotating.

[0042] In the above embodiment, the two ends of the rudder shaft 16 are respectively fixedly connected to the rudder plate 15 and the flange 24 of the propeller 2, which can ensure that the propeller 2 can change direction under the drive of the steering mechanism 1. Exemplarily, the rudder shaft 16 and the flange 24 are connected by a threaded joint (not shown in the figure), and a connecting plate 25 is arranged on the top of the outer shell 21 of the propeller 2, and it is fixed to the outer circumference of the rudder shaft 16 as a whole, which can share part of the thrust and weight and reduce the stress at the connection between the rudder shaft 16 and the flange 24.

[0043] Preferably, the control system 5 includes a control panel 51, a speed control handle 52, a control circuit board 53 and a frequency converter 54, wherein the control panel 51 is arranged on the top of the steering mechanism 1, the control circuit board 53 and the frequency converter 54 are arranged inside the steering mechanism 1, the speed control handle 52 is arranged at the free end of the joystick 14, the control panel 51, the speed control handle 52 and the frequency converter 54 are all electrically connected to the control circuit board 53, and the propeller 2 is electrically connected to the frequency converter 54. Exemplarily, a CPU is integrated on the control circuit board.

[0044] In the above embodiment, the stern engine can be powered by a battery pack or a generator set configured on the ship, and the speed and direction of the rim-type permanent magnet motor 26 can be controlled by the frequency converter 54, thereby driving the ship to move. During the navigation of the ship, the operator can send a speed control signal to the control circuit board 53 by twisting the speed control handle 52. After receiving the speed control signal, the control circuit board 53 controls the frequency converter 54 to change the current frequency and direction of the rim-type permanent magnet motor 26, thereby changing the speed and direction of the rim-type permanent magnet motor 26 and the propeller 22, and then changing the speed and heading of the ship. The control panel 51 is used to display the operating parameters and status of the propeller 2

[0045] Preferably, a first accommodating chamber 151 is provided at the top of the inner cavity of the rudder plate 15, and a second accommodating chamber 152 is provided at the bottom, the control circuit board 53 and the inverter 54 are arranged in the first accommodating chamber 151, the connecting plate 25 is located in the second accommodating chamber 152, and the bottom of the first accommodating chamber 151 is a sealing structure.

[0046] In the above embodiment, the control circuit board 53, the inverter 54 and the connecting plate 25 are all placed inside the rudder plate 15, making full use of the internal space of the rudder plate 15, making the overall appearance of the stern motor more concise, and reducing the water resistance during the navigation of the ship.

[0047] It should be noted that the various embodiments in the present invention are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0048] The utility model and its implementation methods are described in detail above, and such description is not restrictive. The drawings show only some implementation methods of the utility model, and the actual structure is not limited thereto. Ordinary technicians in this field can be inspired by it and make various modifications, improvements and substitutions without departing from the concept of the utility model, which should all belong to the protection scope of the utility model.

Claims

1. A manually-steering electric propulsion stern engine, characterized in that: include: A mounting frame, used for connection and fixation with a ship; A tilting mechanism is mounted on the mounting frame and has a rotational freedom in a vertical direction; A steering mechanism, which is installed on the tilting mechanism and has a horizontal rotational degree of freedom; The propeller is fixed under the steering mechanism and is used to provide thrust for the ship to sail; a control system for controlling and adjusting the speed of the thrusters; The steering mechanism is provided with a joystick, and horizontal swinging of the joystick can cause the steering mechanism to drive the propeller to rotate, thereby changing the propulsion direction; The propeller is a rim-type propeller, a rim-type permanent magnet motor is integrated on the propeller, the propeller of the propeller is installed on the rotor of the rim-type permanent magnet motor, and the control system is electrically connected to the rim-type permanent magnet motor.

2. The manually-steering electric propulsion stern engine according to claim 1, characterized in that: The mounting frame includes a front plate, a left plate and a right plate respectively installed on the left and right sides of the front plate, a door-shaped opening is provided below the left and right plates, and a locking handle is installed at the front end, and the clamping part of the locking handle extends into the opening.

3. The manually-steering electric propulsion stern engine according to claim 2, characterized in that: The tilting mechanism includes a rotating shaft, a torsion spring sleeved on the rotating shaft, a rotating seat installed on the rotating shaft and capable of rotating around the rotating shaft, and a latch rod for positioning the rotating seat. One free end of the torsion spring is fixed on the mounting frame, and the other free end is fixed on the rotating seat.

4. The manually-steering electric propulsion stern engine according to claim 3, characterized in that: A latch hole is provided on at least one side of the left plate and / or the right plate and the rotating seat. When the rotating seat is rotated downward to the limit position, the latch hole on the rotating seat coincides with the axis of the latch hole on the left plate and / or the right plate.

5. The manually-steering electric propulsion stern engine according to claim 1, characterized in that: The steering mechanism includes a transfer shaft, a rudder plate parallel to the transfer shaft, a rudder shaft fixed in the rudder plate, and a clamp fixed on the transfer shaft and clamped on the outer surface of the rudder plate. The transfer shaft has the freedom to rotate around its axis, and one end of the joystick is connected to the top of the transfer shaft and cannot rotate in the horizontal direction.

6. The manually-steering electric propulsion stern engine according to claim 5, characterized in that: A limiting groove is provided at the top of the adapter shaft, one end of the joystick is installed in the limiting groove, and the connecting end of the joystick is provided with two positioning holes along its axial direction. Pin holes are provided at positions corresponding to the positioning holes on both sides of the limiting groove, and a spring positioning pin is installed in the pin hole, and the free end of the spring positioning pin can extend into the positioning hole.

7. The manually-steering electric propulsion stern engine according to claim 6, characterized in that: The transfer shaft is a hollow shaft and its inner diameter is larger than the outer diameter of the joystick. A limit block is provided at the free end of the joystick. When the joystick is inserted into the transfer shaft, the limit block is stuck at the top end of the transfer shaft.

8. The manually-steering electric propulsion stern engine according to claim 5, characterized in that: The upper end of the rudder shaft is fixed in the rudder plate through a limiting cover, and a flange and a connecting plate are arranged on the top of the propeller. The flange is connected to the lower end of the rudder shaft, and the connecting plate is connected to the outer circumference of the rudder shaft.

9. The manually-steering electric propulsion stern engine according to claim 8, characterized in that: The control system includes a control panel, a speed regulating handle, a control circuit board and a frequency converter. The control panel is arranged on the top of the steering mechanism, the control circuit board and the frequency converter are arranged inside the steering mechanism, the speed regulating handle is arranged at the free end of the joystick, the control panel, the speed regulating handle and the frequency converter are all electrically connected to the control circuit board, and the propeller is electrically connected to the frequency converter.

10. The manually-steering electric propulsion stern engine according to claim 9, characterized in that: The top of the rudder plate inner cavity is provided with a first accommodating cavity, and the bottom is provided with a second accommodating cavity. The control circuit board and the inverter are arranged in the first accommodating cavity, and the connecting plate is located in the second accommodating cavity. The bottom of the first accommodating cavity is a sealing structure.

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