Ship speed change transmission system and operation method thereof and ship

Abstract

The present invention belongs to the field of ship transmission, and discloses a ship speed change transmission system, an operation method thereof and a ship, comprising a transmission mechanism, a fixed frame, a speed change mechanism and a position changing frame; the transmission mechanism comprises a driving motor; the driving motor is mounted on the outer side of the first end of the fixed frame, and the output shaft is rotatably arranged on the first end of the position changing frame; the end of the output shaft extends to the outer side of the position changing frame and is used to be connected to the ship's paddle blades; the first face gear pair and the second face gear pair are both arranged between the fixed frame and the position changing frame, and are used to transmit the output power of the driving motor to the output shaft in sequence; the speed change mechanism comprises a third face gear pair, and the position changing motor is mounted on the outer side of the second end of the fixed frame; the third face gear pair is arranged between the fixed frame and the position changing frame, and is used to transmit the output power of the position changing motor to the position changing frame; the present invention changes the driving direction of the power by changing the water entry angle of the ship's paddle blades, thereby changing the traveling posture and speed of the ship.

Description

Technical Field

[0001] The present invention belongs to the technical field of ship transmission, and in particular relates to a ship speed change transmission system, an operating method thereof, and a ship. Background Art

[0002] With the continuous development of the shipbuilding industry, the types of ships are becoming increasingly diverse, from small speedboats to large ocean-going cargo ships and cruise ships. Different ships have different requirements for transmission systems. For example, some special-purpose ships, such as engineering ships and scientific research vessels, require transmission systems that can operate stably under complex working conditions due to the particularity of their operating environment and functional requirements.

[0003] The propulsion system of a ship is the power core of the ship, and the speed reducer is an important component of the propulsion system. Its performance directly affects the efficiency and reliability of the propulsion system. There are generally two speed change methods for existing ship speed reducers. One is to achieve speed change by adjusting the pitch of the blades through an adjustable pitch propeller, and the other is to achieve speed change through an outboard propeller.

[0004] Specifically, when the speed change function is achieved by adjusting the pitch of the blades, due to the complex structure of the adjustable pitch propeller, complex hydraulic pipelines and control systems are required to drive the piston movement in the hub to achieve pitch adjustment of the blades; its complex mechanical structure leads to high requirements for the manufacturing process; in addition, in the method of using an outboard propeller, the engine, transmission device and propeller are combined together, usually in a suspended structure; but the external structure of the outboard propeller makes it relatively unstable when sailing at high speeds, and the propeller is also greatly impacted and disturbed by the water flow, resulting in reduced maneuverability of the ship, such as inaccurate steering and other problems. Summary of the Invention

[0005] In response to the technical problems existing in the prior art, the present invention provides a ship speed change transmission system, an operating method thereof, and a ship to solve the technical problems of the existing ship speed reducer, such as complex speed change structure, poor high-speed stability, and poor maneuvering stability.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: The present invention provides a ship speed-changing transmission system, comprising a transmission mechanism, a fixed frame, a speed-changing mechanism and a position-changing frame; the fixed frame and the position-changing frame are arranged in parallel; The transmission mechanism includes a drive motor, a first face gear pair, a second face gear pair, and an output shaft; the drive motor is mounted on the outside of the first end of the fixed frame, and the output shaft is rotatably disposed on the first end of the variable position frame; wherein the distal end of the output shaft extends to the outside of the variable position frame and is used to connect to the ship's propeller blades; the first face gear pair and the second face gear pair are both disposed between the fixed frame and the variable position frame, and are used to sequentially transmit the output power of the drive motor to the output shaft; The speed changing mechanism includes a third face gear pair and a shifting motor, and the shifting motor is installed on the outside of the second end of the fixed frame; the third face gear pair is arranged between the fixed frame and the shifting frame, and is used to transmit the output power of the shifting motor to the shifting frame to drive the shifting frame to rotate, thereby adjusting the water entry angle of the output shaft.

[0007] Furthermore, the transmission mechanism further includes a transmission shaft; the transmission shaft is arranged between the fixed frame and the position-shifting frame and is arranged close to one side of the drive motor; The first face gear pair includes a first cylindrical gear and a first face gear, the first cylindrical gear is mounted on the inner side of the first end of the fixed frame, and the first cylindrical gear is connected to the output end of the drive motor; the first face gear rotates and is sleeved on the transmission shaft, and the first face gear and the first cylindrical gear are engaged with each other.

[0008] Furthermore, the second face gear pair includes a second face gear and a second cylindrical gear; The second face gear is rotatably sleeved on the transmission shaft, and the second face gear is fixedly connected to the first face gear; the second cylindrical gear is coaxially fixed to the front end of the transmission shaft, and the second cylindrical gear and the second face gear are meshed with each other.

[0009] Furthermore, the transmission shaft is connected to the fixed frame through a first bearing support mechanism, and the transmission shaft is fixedly connected to the position-shifting frame through a first fixing member.

[0010] Furthermore, the speed change mechanism further includes a shift shaft; the shift shaft is arranged between the fixed frame and the shift frame, and is arranged close to one side of the shift motor; The third face gear pair includes a third face gear and a third cylindrical gear; the third cylindrical gear is installed on the inner side of the second end of the fixed frame, and the third cylindrical gear is connected to the output end of the position shifting motor; the third face gear rotates and is sleeved on the position shifting shaft, the third face gear and the third cylindrical gear are engaged with each other, and the third face gear is connected to the position shifting frame through a second fixing member.

[0011] Furthermore, the displacement shaft is connected to the fixed frame through a second bearing support mechanism.

[0012] Furthermore, it also includes a position change controller, the output end of which is connected to the control end of the position change motor; wherein the position change controller is used to generate and send a motor action instruction to the position change motor according to the received position change signal.

[0013] Furthermore, the output shaft and the position shifting frame are connected by a bearing.

[0014] The present invention also provides an operating method of a ship speed change transmission system, comprising: When the ship needs to move forward, the drive motor starts working; the output power of the drive motor is transmitted to the output shaft through the first face gear pair and the second face gear pair in sequence, so as to drive the output shaft to rotate on the positioner frame, thereby driving the ship's blades to rotate, thereby propelling the ship forward; When the ship needs to change speed or direction, the position motor starts to work; the output power of the position motor is transmitted to the position frame through the third gear pair in turn to drive the position frame to rotate, thereby adjusting the water entry angle of the output shaft; wherein, when the water entry angle of the output shaft changes, the water entry angle of the ship's blades is driven to change, thereby changing the driving direction of the power to adjust the ship's travel direction and speed.

[0015] The present invention also provides a ship, comprising the ship speed change transmission system.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The ship speed change transmission system and operation method provided by the present invention adjust the entry angle of the ship's blades into the water through the cooperation of three face gear pairs, and change the driving direction of the power by changing the entry angle of the ship's blades into the water, thereby changing the moving posture of the hull and adjusting the moving speed of the ship to realize the speed change function of the ship; specifically, the first face gear and the second face gear cooperate with each other to transmit the ship's moving power to propel the ship forward; the entry angle of the ship's blades into the water is changed by the cooperation of the third face gear and the second face gear; in the present invention, the mechanical transmission structure of the face gear pair is adopted to realize the power transmission and speed change function of the ship, replacing the traditional hydraulic speed change structure, thereby improving the reliability and safety of the transmission system; secondly, it is driven by an electric motor, and its response speed is faster and the control is more accurate than the traditional hydraulic variable pitch speed change method, thereby improving the maneuverability of the ship.

[0017] Furthermore, the position changing motor is connected to the position changing controller, so that the position changing controller can adjust the position in real time at high speed, thereby continuously adjusting the hull posture, thereby improving the stability and maneuverability of the hull. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the ship speed change transmission system provided in Example 1.

[0020] Among them, 1 is a driving motor, 2 is a fixed frame, 3 is a first cylindrical gear, 4 is a first face gear, 5 is a second face gear, 6 is a second cylindrical gear, 7 is a transmission shaft, 8 is an output shaft, 9 is a ship blade, 10 is a first fixed part, 11 is a third face gear, 12 is a shifting shaft, 13 is a third cylindrical gear, 14 is a shifting motor, 15 is a shifting controller, 16 is a shifting frame, and 17 is a second fixed part. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions, and beneficial effects solved by this application more clearly understood, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application; it is obvious that the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of this application.

[0022] Example 1 As attached Figure 1 As shown, this embodiment 1 provides a ship speed change transmission system, including a transmission mechanism, a fixing mechanism 2, a speed change mechanism and a position change frame 16; the fixed frame 2 is arranged in parallel with the position change frame 16 to provide a stable support basis for the transmission mechanism and the speed change mechanism; the transmission mechanism is used to transmit the power of the ship's propulsion to achieve the ship's propulsion; the speed change mechanism is used to achieve ship speed change by adjusting the entry angle of the ship's blades into the water.

[0023] The transmission mechanism includes a drive motor 1 , a first face gear pair, a second face gear pair, a transmission shaft 7 and an output shaft 8 .

[0024] The drive motor 1 is installed on the outside of the first end of the fixed frame 2, and is used to drive the first cylindrical gear 3 in the first face gear pair to rotate; the output shaft 8 is rotatably arranged at the first end of the position shifting frame 16, and the front end of the output shaft 8 extends between the fixed frame 2 and the position shifting frame 16, and the end of the output shaft 8 extends to the outside of the first end of the position shifting frame 16; wherein, the output shaft 8 and the position shifting frame 16 are connected by a bearing, and the end of the output shaft 8 is connected to the ship blade 9; the first face gear pair and the second face gear pair are both arranged between the fixed frame 2 and the position shifting frame 16, and are used to transmit the output power of the drive motor 1 to the output shaft 8 in sequence.

[0025] The transmission shaft 7 is arranged between the fixed frame 2 and the position shifting frame 16, and the transmission shaft 7 is arranged close to the side of the first cylindrical gear 3; wherein, the axis of the transmission shaft 7 is parallel to the axis of the fixed frame 2 or the position shifting frame 16, so as to support the first face gear 4 in the first face gear pair and the second face gear 5 in the second face gear pair, and make the first face gear 4 and the second face gear 5 rotate around the transmission shaft 7.

[0026] It should be noted that the transmission shaft 7 is connected to the fixed frame 2 through a first bearing support mechanism to rotatably support the transmission shaft 7 on the fixed frame 2; specifically, the first bearing support mechanism includes a support bearing and a fixed connector, the support bearing is sleeved on the transmission shaft 7, and the fixed connector connects the support bearing to the fixed frame 2; the first bearing support mechanism is used to support the transmission shaft 7 on the fixed frame 2, so that the transmission shaft 7 has better stability. The transmission shaft 7 is also fixedly connected to the positioner frame 16 through a first fixing member 10, so that the transmission shaft 7 and the positioner frame 16 rotate synchronously; wherein, one end of the first fixing member 10 is vertically fixed to the transmission shaft 7, and the other end of the first fixing member 10 is fixed to the positioner frame 16.

[0027] The first face gear pair includes a first cylindrical gear 3 and a first face gear 4; the second face gear pair includes a second face gear 5 and a second cylindrical gear 6; the first face gear 4 and the first cylindrical gear 3 are meshed with each other, and the second face gear 5 and the second cylindrical gear 6 are meshed with each other; wherein, the first face gear 4 and the first cylindrical gear 3 are meshed with each other to form a first face gear pair, and the second face gear 5 and the second cylindrical gear 6 are meshed with each other to form a second face gear pair.

[0028] The first cylindrical gear 3 is installed on the inner side of the first end of the fixed frame 2, and the first cylindrical gear 3 is connected to the fixed frame 2 through a bearing; the first cylindrical gear 3 is connected to the output end of the drive motor 1 through a flat key to transmit torque.

[0029] The first face gear 4, the second face gear 5 and the second cylindrical gear 6 are all arranged between the fixed frame 2 and the shifting frame 16, and the first face gear 4 and the second face gear 5 are both rotatably sleeved on the transmission shaft 7; wherein, the first face gear 4, the second face gear 5 and the transmission shaft 7 are coaxially arranged, that is, the axes of the first face gear 4, the second face gear 5 and the transmission shaft 7 coincide; the transmission shaft 7 serves as the rotating axis of the first face gear 4 and the second face gear 5, so that the first face gear 4 and the second face gear 5 can rotate around the transmission shaft 7; preferably, the first face gear 4 and the second face gear 5 are connected to the transmission shaft 7 through bearings.

[0030] The first face gear 4 is fixedly connected to the second face gear 5; wherein the diameter of the first face gear 4 is larger than the diameter of the second face gear 5, and the second face gear 5 is arranged close to the first end of the fixed frame 2; the second face gear 5 is fixed to the surface of the first face gear 4 by bolts, so that the first face gear 4 and the second face gear 5 are fixedly connected.

[0031] It should be noted that the second cylindrical gear 6 is fixedly mounted on the front end of the output shaft 8, and the second cylindrical gear 6 and the output shaft 8 are coaxially arranged so that the second cylindrical gear 6 and the output shaft 8 rotate synchronously; preferably, the second cylindrical gear 6 and the output shaft 8 adopt an integrated structure.

[0032] This embodiment 1 also provides another implementation method of the second cylindrical gear 6 and the output shaft 8, that is, the second cylindrical gear 6 and the output shaft 8 are replaced by an output gear shaft; specifically, the output gear shaft is rotatably arranged at the first end of the shifting frame 16; wherein the cylindrical gear of the output gear shaft is located between the fixed frame 2 and the shifting frame 16, and the cylindrical gear of the output gear shaft is meshed with the second face gear 5; the shaft body of the output gear shaft extends to the outside of the first end of the shifting frame 16 and is connected to the ship blade 9; wherein the shaft body of the output gear shaft is arranged through the fixed frame 2, and the shaft body of the output gear shaft is connected to the shifting frame 16 by a bearing, and the ship blade 9 is fixedly mounted on the end of the shaft body of the output gear shaft; wherein the shaft body of the output gear shaft and the axis of the shifting frame 16 are perpendicular to each other.

[0033] Design and working principle of the transmission mechanism: The driving motor 1 is connected to the first cylindrical gear 3 through a flat key to transmit torque; the first cylindrical gear 3 is supported on the fixed frame 2 by a bearing; the first cylindrical gear 3 and the first face gear 4 are meshed with each other to perform a deceleration and torque increase; the first face gear 4 is fixed to the second face gear 5 by bolts, and the transmission shaft 7 is supported on the fixed frame 2 by a first bearing support mechanism, thereby achieving support for the first face gear 4 and the second face gear 5; then, the second face gear 5 is meshed with the second cylindrical gear 6 to perform a direction change; the output shaft 8 is installed on the position shifting frame 16 through a bearing, so that the output shaft 8 rotates on the position shifting frame 16 to output torque, and the ship blades 9 installed on the output shaft 8 move the water to obtain reaction force, thereby propelling the ship forward.

[0034] The speed change mechanism includes a third face gear pair, a shift shaft 12 , a shift motor 14 and a shift controller 15 .

[0035] The shifting motor 14 is installed on the outside of the second end of the fixed frame 2, and is used to drive the third cylindrical gear 13 in the third face gear pair to rotate; the third face gear pair is arranged between the fixed frame 2 and the shifting frame 16, and is used to transmit the output power of the shifting motor 14 to the shifting frame 16 to drive the shifting frame 16 to rotate, thereby adjusting the entry angle of the output shaft 8 into the water.

[0036] The shifting shaft 12 is arranged between the fixed frame 2 and the shifting frame 16, and is arranged close to the side of the shifting motor 14; specifically, the axis of the shifting shaft 12 is parallel to the axis of the fixed frame 2 or the shifting frame 16; wherein, the shifting shaft 12 is connected to the fixed frame 2 through a second bearing support mechanism, so as to form a support with the fixed frame 2 and the shifting shaft 12; it is worth noting that the structure and function of the second bearing support mechanism are basically the same as those of the first bearing support mechanism, and are used to support the shifting shaft 12; for the second bearing support mechanism, refer to the description of the above-mentioned first bearing support mechanism, and no further details will be given here.

[0037] The third face gear pair includes a third face gear 11 and a third cylindrical gear 13. The third cylindrical gear 13 is mounted on the inner side of the second end of the fixed frame 2. The third cylindrical gear 13 is connected to the fixed frame 2 through a bearing; wherein, the third cylindrical gear 13 is connected to the output end of the position shifting motor 14 through a flat key to transmit torque.

[0038] The third face gear 11 rotates and is sleeved on the shifting shaft 12, and the third face gear 11 and the third cylindrical gear 13 are engaged with each other; wherein, the third face gear 11 and the third cylindrical gear 13 are engaged with each other to form a third face gear pair, and the third face gear 11 and the shifting shaft 12 are connected by a bearing.

[0039] It is worth noting that the third face gear 11 is connected to the positioner frame 16 through a second fixing member 17, so that the third face gear 11 drives the positioner frame 16 to rotate synchronously, and then adjusts the entry angle of the output shaft 8 to achieve the adjustment of the entry angle of the ship's propeller blade 9; wherein, one end of the second fixing member 17 is vertically fixed to the third face gear 11, and the other end of the second fixing member 17 is vertically connected to the positioner frame 16.

[0040] Specifically, the second fixing member 17 includes a rotating sleeve and a connecting rod. The rotating sleeve is installed on the shifting shaft 12 through a bearing, and the end of the rotating sleeve is fixed to the third face gear 11 with bolts; one end of the connecting rod is vertically fixed to the outer wall of the rotating sleeve, and the other end of the connecting rod is fixedly connected to the shifting frame 16.

[0041] The output end of the position shift controller 15 is connected to the control end of the position shift motor 14 ; wherein, the position shift controller 15 is used to generate and send a motor action instruction to the position shift motor 14 according to the received position shift signal.

[0042] The design and working principle of the displacement mechanism: The shift controller 15 generates and sends a motor action instruction to the shift motor 14 based on the received shift signal, controlling the shift motor 14 to rotate at a preset speed, a preset number of turns or a preset angle; the shift motor 14 is connected to the third cylindrical gear 13 by a flat key, and when the shift motor 14 rotates, the third cylindrical gear 13 is driven to rotate the same number of turns or angle; the third cylindrical gear 13 and the third face gear 11 are engaged with each other, and under a fixed transmission ratio, the speed and rotation angle of the third face gear 11 are constant; at the same time, since the third face gear 11 and the shift frame 16 are fixedly connected as a whole by the second fixing member 17, and the shift shaft 12 is supported on the fixed frame 2 by a bearing support mechanism; therefore, the speed and rotation angle of the shift frame 16 are constant; under the control of the shift controller 15, the angular velocity of the shift frame 16 is made the same as the angular velocity of the transmission shaft 7, thereby changing the water entry angle of the output shaft 8, changing the direction of the reaction force generated by the ship's blades 9, and changing the ship's traveling posture, thereby achieving the purpose of speed change.

[0043] The operating method of the ship speed change transmission system described in this embodiment 1 is as follows: When the ship needs to move forward, the drive motor 1 starts to work; the output power of the drive motor 1 is transmitted to the output shaft 8 through the first face gear pair and the second face gear pair in sequence, thereby driving the output shaft 8 to rotate on the positioner frame 16, thereby driving the ship's blades 9 to rotate, thereby propelling the ship forward; When the ship needs to change speed, the position shifting motor 14 starts to work; the output power of the position shifting motor 14 is sequentially transmitted to the position shifting frame 16 through the third face gear pair to drive the position shifting frame 16 to rotate, thereby adjusting the water entry angle of the output shaft 8; wherein, when the water entry angle of the output shaft 8 changes, the water entry angle of the ship's paddle blades 9 is driven to change, thereby changing the driving direction of the power to change the ship's travel direction and speed.

[0044] Specifically, it includes the transmission process and the speed change process.

[0045] The transmission process is as follows: The driving motor 1 is used to drive the first cylindrical gear 3 to rotate; then, the first cylindrical gear 3 is engaged with the first face gear 4 and the second face gear 5 is engaged with the second cylindrical gear 6 to transmit the power of the driving motor 1 to the output shaft 8, so that the output shaft 8 rotates on the shifting frame 16, thereby driving the ship blades 9 to rotate; in detail, when the driving motor 1 is working, the first cylindrical gear 3 connected to it is supported on the fixed frame 2 through a bearing, and the first cylindrical gear 3 and the first face gear 4 are engaged to transmit power; the first face gear 4 and the second face gear 5 are fixed by bolts, so that the speed and torque of the first face gear 4 and the second face gear 5 are consistent; the second face gear 5 and the second cylindrical gear 6 are engaged, and the coaxial fixation of the second cylindrical gear 6 and the output shaft 8 realizes the direction change and power output.

[0046] Speed ​​shifting process: The third cylindrical gear 13 is driven to rotate by the shifting motor 14; then, power is transmitted through the meshing of the third cylindrical gear 13 and the third face gear 11 to drive the shifting frame 16 to rotate; when the shifting frame 16 rotates, the water entry angle of the output shaft 8 changes, thereby changing the water entry angle of the ship's blades 9, thereby changing the travel speed of the ship; in detail, when speed change is required, the shifting controller 15 sends an instruction to the shifting motor 14, the shifting motor 14 works, thereby driving the third cylindrical gear 13 to rotate a preset angle, and the third cylindrical gear 13 and the third face gear 11 are meshed, thereby driving the third face gear 11 to rotate a preset angle; since the third face gear 11 is fixedly connected to the shifting frame 16, the shifting frame 16 is driven to rotate a preset angle; since the output shaft 8 is mounted on the shifting frame 16 using bearings, the water entry angle of the output shaft 8 will change when the shifting frame 16 rotates.

[0047] In this embodiment 1, the position shifting motor 14 is controlled by the position shifting controller 15, and the position shifting motor 14 is used to drive the third cylindrical gear 13 to rotate. The third cylindrical gear 13 and the third face gear 11 are meshed with each other, and the third face gear 11 is fixedly connected to the position shifting frame 16, so that the rotation speed of the position shifting frame 16 and the transmission shaft 7 are the same; secondly, during the entire speed shifting process, the second cylindrical gear 6 and the second face gear 5 are always in an orthogonal meshing state, ensuring that there is no impact between gears during the entire speed shifting process, thereby realizing the process of changing the angle of entry of the blades into the water; and then by changing the angle of entry of the ship's blades 9, the driving direction of the power is changed, and the traveling posture of the ship is changed to adjust the traveling speed.

[0048] The ship speed change transmission system provided in this embodiment 1 meshes the first cylindrical gear and the first face gear to form a first face gear pair, meshes the second face gear and the second cylindrical gear to form a second face gear pair, and forms a third face gear pair with the third cylindrical gear and the third face gear core; wherein, the first face gear pair transmits power, and the third face gear pair adjusts the entry angle of the ship's propeller blades into the water. While transmitting power, the second face gear pair can cooperate with the third face gear pair to change the entry angle of the ship's propeller blades into the water. By changing the entry angle of the ship's propeller blades into the water, the driving direction of the power is changed, and the moving posture of the hull is changed to adjust the travel speed.

[0049] Example 2 This embodiment 2 provides a ship, which includes the ship speed change system described in embodiment 1; it should be noted that the ship can realize the speed change function under complex working conditions; wherein, a mechanical transmission structure of face gears is used to realize the speed change function of the ship, replacing the hydraulic speed change structure, thereby improving the reliability and safety of the ship drive system; using motor drive, the response speed is faster and the control is more accurate than the hydraulic variable pitch speed change method, thereby improving the maneuverability of the ship; secondly, using motor drive, the controller can be used to adjust the position in real time at high speed, thereby continuously adjusting the hull posture, thereby improving the stability and maneuverability of the hull.

[0050] The ship speed change system described in the present invention uses three face gear pairs to realize power transmission and adjust the entry angle of the ship's blades into the water: specifically, one face gear pair is used for power transmission, one face gear pair is used to transmit power and cooperate to change the entry angle of the blades into the water, and then a mechanical mechanism of a face gear pair is used to realize the change of the entry angle of the blades into the water. By adjusting the entry angle of the blades into the water, the overall power propulsion direction is changed, thereby realizing the speed change function.

[0051] The above embodiment is only one of the implementation methods that can realize the technical solution of the present invention. The scope of protection claimed by the present invention is not limited only to this embodiment, but also includes changes, replacements and other implementation methods that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention.

Claims

1. A ship speed change transmission system, characterized in that: It comprises a transmission mechanism, a fixed frame (2), a speed change mechanism and a position changing frame (16); the fixed frame (2) and the position changing frame (16) are arranged in parallel; The transmission mechanism comprises a drive motor (1), a first face gear pair, a second face gear pair and an output shaft (8); the drive motor (1) is mounted on the outside of a first end of the fixed frame (2), and the output shaft (8) is rotatably arranged on the first end of the position-changing frame (16); wherein a distal end of the output shaft (8) extends to the outside of the position-changing frame (16) and is used to be connected to a ship blade (9); the first face gear pair and the second face gear pair are both arranged between the fixed frame (2) and the position-changing frame (16) and are used to sequentially transmit the output power of the drive motor (1) to the output shaft (8); The speed change mechanism comprises a third face gear pair and a position changing motor (14), wherein the position changing motor (14) is mounted on the outer side of the second end of the fixed frame (2); the third face gear pair is arranged between the fixed frame (2) and the position changing frame (16), and is used for transmitting the output power of the position changing motor (14) to the position changing frame (16), so as to drive the position changing frame (16) to rotate, thereby adjusting the water entry angle of the output shaft (8).

2. A ship speed change transmission system according to claim 1, characterized in that: The transmission mechanism further comprises a transmission shaft (7); the transmission shaft (7) is arranged between the fixed frame (2) and the position-changing frame (16), and is arranged close to one side of the drive motor (1); The first face gear pair comprises a first cylindrical gear (3) and a first face gear (4); the first cylindrical gear (3) is mounted on the inner side of the first end of the fixed frame (2), and the first cylindrical gear (3) is connected to the output end of the drive motor (1); the first face gear (4) is rotatably sleeved on the transmission shaft (7), and the first face gear (4) and the first cylindrical gear (3) are meshed with each other.

3. A ship speed change transmission system according to claim 2, characterized in that: The second face gear pair comprises a second face gear (5) and a second cylindrical gear (6); The second face gear (5) is rotatably sleeved on the transmission shaft (7), and the second face gear (5) is fixedly connected to the first face gear (4); the second cylindrical gear (6) is coaxially fixed to the front end of the transmission shaft (7), and the second cylindrical gear (6) and the second face gear (5) are meshed with each other.

4. A ship speed change transmission system according to claim 2, characterized in that: The transmission shaft (7) is connected to the fixed frame (2) via a first bearing support mechanism, and the transmission shaft (7) is fixedly connected to the position shifting frame (16) via a first fixing member (10).

5. A ship speed change transmission system according to claim 1, characterized in that: The speed change mechanism further comprises a shift shaft (12); the shift shaft (12) is arranged between the fixed frame (2) and the shift frame (16), and is arranged close to one side of the shift motor (14); The third face gear pair comprises a third face gear (11) and a third cylindrical gear (13); the third cylindrical gear (13) is mounted on the inner side of the second end of the fixed frame (2), and the third cylindrical gear (13) is connected to the output end of the position changing motor (14); the third face gear (11) is rotatably sleeved on the position changing shaft (12), the third face gear (11) and the third cylindrical gear (13) are meshed with each other, and the third face gear (11) is connected to the position changing frame (16) via a second fixing member (17).

6. A ship speed change transmission system according to claim 5, characterized in that: The displacement shaft (12) is connected to the fixed frame (2) via a second bearing support mechanism.

7. A ship speed change transmission system according to claim 5, characterized in that: It also includes a position change controller (15), the output end of the position change controller (15) is connected to the control end of the position change motor (14); wherein the position change controller (15) is used to generate and send a motor action instruction to the position change motor (14) based on a received position change signal.

8. A ship speed change transmission system according to claim 1, characterized in that: The output shaft (8) and the position shifting frame (16) are connected by a bearing.

9. The method for operating a ship variable speed transmission system according to any one of claims 1 to 8, characterized in that: include: When the ship needs to move, the drive motor (1) starts to work; The output power of the driving motor (1) is transmitted to the output shaft (8) via the first face gear pair and the second face gear pair in sequence, so as to drive the output shaft (8) to rotate on the position changing frame (16), thereby driving the ship's paddle blades (9) to rotate, so as to propel the ship forward; When the ship needs to change speed, the position-changing motor (14) starts to work; the output power of the position-changing motor (14) is sequentially transmitted to the position-changing frame (16) via the third gear pair to drive the position-changing frame (16) to rotate, thereby adjusting the water entry angle of the output shaft (8); wherein, when the water entry angle of the output shaft (8) changes, the water entry angle of the ship's paddle blades (9) is driven to change, thereby changing the driving direction of the power, thereby adjusting the travel direction and travel speed of the ship.

10. A ship, characterized in that: A ship speed change transmission system comprising the following:

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