Propelling system

Abstract

A propelling system comprises a controller and a plurality of propelling devices, each propelling device comprises a first driving device, a second driving device, a gear box, an output shaft and an output actuator, the first driving devices, the second driving devices and the gear boxes are all fixedly installed on a ship body, and the first driving devices, the gear boxes, the output shafts and the output actuators are sequentially arranged. The gearbox is provided with an output end and an input end, the first driving device is detachably connected to the input end, one end of the output shaft is connected to the output end, the other end of the output shaft is connected to the output actuator, the first driving device can drive the output shaft to rotate, and the second driving device is arranged on the outer side of the output shaft in a sleeving mode and is in transmission connection with the output shaft. The second driving device can drive the output shaft to rotate, and the controller is connected to the first driving device and the second driving device; the width of each propelling device in the propelling system is small, the structure is compact, and workers can conveniently maintain a ship.

Description

Technical Field

[0001] The utility model relates to the technical field of ship propulsion systems, in particular to a propulsion system. Background Art

[0002] At present, in order to save energy, ships will adopt a hybrid propulsion system to provide their forward power. The hybrid propulsion system mainly includes two driving devices with different powers, a gearbox with two input ends and one output end, an output shaft and a propulsion actuator. The two driving devices are respectively connected to the two input ends, the output end is connected to the output shaft, and the output shaft is connected to the propulsion actuator. When sailing at high speed, the driving device with lower power and the gearbox are disengaged, and the driving device with higher power and the gearbox are combined to ensure that the sailing speed is high enough; when sailing at low speed, the driving device with lower power and the gearbox are combined, and the driving device with higher power and the gearbox are disengaged to reduce noise and energy consumption. However, in this structure, the two driving devices are installed at the gearbox at the same time, which makes the width of the hybrid propulsion system larger, and the hybrid propulsion system becomes more bloated, which will squeeze the operation and maintenance space, which is not conducive to the maintenance and maintenance of the ship. Utility Model Content

[0003] The utility model aims to provide a propulsion system to solve the technical problem that the structure of the traditional hybrid propulsion system is relatively bloated and is not conducive to the maintenance and upkeep of the ship.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a propulsion system, including a controller and multiple propulsion devices, the multiple propulsion devices are arranged at intervals along the width direction of the hull, the propulsion devices include a first drive device, a second drive device, a gear box, an output shaft, and an output actuator, the first drive device, the second drive device and the gear box are all fixedly installed on the hull, the first drive device, the gear box, the output shaft and the output actuator are arranged in sequence, the gear box is provided with an output end and an input end, the first drive device is detachably connected to the input end, one end of the output shaft is connected to the output end, and the other end of the output shaft is connected to the output actuator, the first drive device can drive the output shaft to rotate, the second drive device is sleeved on the outside of the output shaft, the second drive device is transmission-connected to the output shaft, the second drive device can drive the output shaft to rotate, the rated power of the first drive device is greater than the rated power of the second drive device, and the controller is connected to the first drive device and the second drive device.

[0005] Optionally, it also includes a generator set, the second drive device includes a hollow shaft motor, the generator set is fixedly installed on the hull, the generator set is connected to the hollow shaft motor, the shaft hole of the motor shaft of the hollow shaft motor is sleeved on the outside of the output shaft, and the motor shaft of the hollow shaft motor is fixedly connected to the output shaft.

[0006] Optionally, the propulsion device further includes a frequency converter, which is connected to the second drive device to adjust the actual power of the second drive device, the controller is connected to the frequency converter, and the generator set is connected to the frequency converter.

[0007] Optionally, the second driving device includes a plurality of the hollow shaft motors, and the plurality of the hollow shaft motors are arranged in sequence along the axial direction of the output shaft.

[0008] Optionally, the rated power of the generator set is 90kW to 110kW, and the rated power of the second drive device is 35kW to 45kW.

[0009] Optionally, the first driving device is a diesel engine.

[0010] Optionally, the rated power of the first driving device is 600 kW to 700 kW.

[0011] Optionally, the rated power of the first driving device is 15 to 18 times the rated power of the second driving device.

[0012] Optionally, the output actuator is a propeller or a jet pump.

[0013] Compared with the prior art, the propulsion system of the utility model has the following beneficial effects:

[0014] The utility model controls multiple propulsion devices arranged at intervals along the width direction of the hull through a controller to provide forward power to the ship, wherein a first drive device, a gear box, an output shaft and an output actuator are arranged and connected in sequence to form a linear power transmission structure, so that the occupied width is smaller. When the ship needs to sail at high speed, the first drive device is connected to the gear box in combination, and the first drive device can transmit power to the output shaft in sequence, so that the output actuator performs high-speed propulsion operations. Furthermore, in order to save energy, the ship relies on the second drive device for low-speed navigation. The second drive device is sleeved on the outside of the output shaft and directly connected to the output shaft to reduce the width of the second drive device protruding outward, thereby preventing the increase in the total width of the system. When the ship sails at low speed, the first drive device is detached from the gear box, and the second drive device directly drives the output shaft to rotate, thereby causing the output actuator to perform low-speed propulsion operations. In summary, each propulsion device in the propulsion system of the utility model has a small width and a compact structure, which is convenient for staff to maintain and service the ship. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is a relationship diagram of the utility model.

[0017] Figure numerals: 1. Propulsion device; 11. First drive device; 12. Second drive device; 13. Gearbox; 14. Output shaft; 15. Output actuator; 16. Frequency converter; 2. Generator set. DETAILED DESCRIPTION

[0018] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0021] like Figure 1 and 2As shown, a propulsion system of the utility model includes a controller and multiple propulsion devices 1, and the multiple propulsion devices 1 are arranged at intervals along the width direction of the hull. The propulsion device 1 includes a first drive device 11, a second drive device 12, a gear box 13, an output shaft 14, and an output actuator 15. The first drive device 11, the second drive device 12 and the gear box 13 are all fixedly installed on the hull. The first drive device 11, the gear box 13, the output shaft 14 and the output actuator 15 are arranged in sequence. The gear box 13 is provided with an output end and an input end. The first drive device 11 can be detachably connected to the The input end, one end of the output shaft 14 is connected to the output end, the other end of the output shaft 14 is connected to the output actuator 15, the first drive device 11 can drive the output shaft 14 to rotate, the second drive device 12 is sleeved on the outside of the output shaft 14, the second drive device 12 is transmission-connected to the output shaft 14, the second drive device 12 can drive the output shaft 14 to rotate, the rated power of the first drive device 11 is greater than the rated power of the second drive device 12, and the controller is connected to the first drive device 11 and the second drive device 12.

[0022] In the above technical solution, a controller controls multiple propulsion devices 1 arranged at intervals along the width direction of the hull to provide the ship with forward power, wherein the first drive device 11, the gear box 13, the output shaft 14 and the output actuator 15 are arranged and connected in sequence to form a linear power transmission structure, so that the occupied width is small. When the ship needs to sail at high speed, the first drive device 11 is connected to the gear box 13 in a row, and the first drive device 11 can transmit power to the output shaft 14 in sequence, thereby enabling the output actuator 15 to perform high-speed propulsion operations. Further, in order to save energy, the ship relies on the first drive device 11. The second drive device 12 is used for low-speed navigation. The second drive device 12 is sleeved on the outside of the output shaft 14 and is directly connected to the output shaft 14 to reduce the width of the second drive device 12 protruding outward, thereby preventing the total width of the system from increasing. When the ship is sailing at a low speed, the first drive device 11 is disengaged from the gear box 13, and the second drive device 12 directly drives the output shaft 14 to rotate, thereby causing the output actuator 15 to perform a low-speed propulsion operation. In summary, each propulsion device 1 in the propulsion system of the utility model has a small width and a compact structure, which is convenient for staff to maintain and service the ship.

[0023] Furthermore, it also includes a generator set 2, and the second drive device 12 includes a hollow shaft motor. The generator set 2 is fixedly installed on the hull, and the generator set 2 is connected to the hollow shaft motor. The axial hole of the motor shaft of the hollow shaft motor is sleeved on the outside of the output shaft 14, and the motor shaft of the hollow shaft motor is fixedly connected to the output shaft 14, wherein the generator set 2 provides electrical energy for the second drive device 12, and the structure of the output shaft 14 passing through the axial hole of the hollow shaft motor can effectively reduce the radial protrusion distance of the second drive device 12 along the output shaft 14, thereby preventing the second drive device 12 from increasing the total width of the propulsion system.

[0024] Furthermore, the propulsion device 1 also includes a frequency converter 16, which is connected to the second drive device 12 to adjust the actual power of the second drive device 12, the controller is connected to the frequency converter 16, and the generator set 2 is connected to the frequency converter 16; the controller controls the frequency converter 16 to adjust the actual power of the second drive device 12, thereby controlling the actual sailing speed during low-speed sailing.

[0025] Furthermore, the second drive device 12 includes a plurality of hollow shaft motors, and the plurality of hollow shaft motors are arranged in sequence along the axial direction of the output shaft 14. When sailing at a low speed, the plurality of hollow shaft motors can transmit power to the output shaft 14 at the same time to reduce the power requirement of each hollow shaft motor, thereby reducing the volume of the hollow shaft motor (the larger the rated power of the motor, the larger its volume is usually).

[0026] Furthermore, the rated power of the generator set 2 is 90kW to 110kW, preferably 100kW, and the rated power of the second drive device 12 is 35kW to 45kW, preferably 40kW, to meet the needs of low-speed navigation and minimize actual noise; wherein, the rated power of the generator set 2 must be greater than the sum of the rated powers of the two second drive devices 12, and the generator set 2 is composed of multiple ultra-quiet generator sets 2.

[0027] Furthermore, the first driving device 11 is a diesel engine; further, the rated power of the first driving device 11 is 600 kW to 700 kW to meet the demand of high-speed navigation.

[0028] Furthermore, the rated power of the first driving device 11 is 15 to 18 times the rated power of the second driving device 12 , so that there is a significant power difference between the first driving device 11 and the second driving device 12 .

[0029] Furthermore, the output actuator 15 is a propeller or a jet pump, so that the propulsion system obtains forward power through propeller rotation or jetting.

[0030] Furthermore, the first drive device 11 and the gear box 13 are connected via an elastic coupling, the gear box 13 and the output shaft 14 are connected via a flange or a universal joint, and the second drive device 12 and the output shaft 14 are connected via a key or a pin.

[0031] Furthermore, the specific connection methods of fixed setting and fixed connection refer to the relative position relationship of two components that can be fixedly connected, including fixing by connecting parts, fixing by welding, fixing by adhesives, fixing by integral molding, and fixing by snap connections.

[0032] Furthermore, the connecting parts include fasteners, straps, ties, pneumatic connecting elements, hydraulic connecting elements, flange plates, Velcro, and buttons.

[0033] In summary, the embodiment of the utility model provides a propulsion system, and its technical effects are:

[0034] The utility model controls a plurality of propulsion devices 1 arranged at intervals along the width direction of the ship to provide the ship with forward power through a controller, wherein a first drive device 11, a gear box 13, an output shaft 14 and an output actuator 15 are arranged and connected in sequence to form a linear power transmission structure, so that the occupied width is small. When the ship needs to sail at high speed, the first drive device 11 is connected to the gear box 13 in a row, and the first drive device 11 can transmit power to the output shaft 14 in sequence, thereby enabling the output actuator 15 to perform high-speed propulsion operations. Furthermore, in order to save energy, the ship relies on the second The driving device 12 is used for low-speed navigation, and the second driving device 12 is sleeved on the outside of the output shaft 14 and is directly connected to the output shaft 14 to reduce the width of the second driving device 12 protruding outward, thereby preventing the total width of the system from increasing. When the ship is sailing at a low speed, the first driving device 11 is disengaged from the gear box 13, and the second driving device 12 directly drives the output shaft 14 to rotate, thereby causing the output actuator 15 to perform a low-speed propulsion operation. In summary, each propulsion device 1 in the propulsion system of the utility model has a small width and a compact structure, which is convenient for the staff to maintain and service the ship.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A propulsion system, characterized in that: The invention comprises a controller and a plurality of propulsion devices (1), wherein the plurality of propulsion devices (1) are arranged at intervals along the width direction of the ship body, wherein the propulsion device (1) comprises a first drive device (11), a second drive device (12), a gear box (13), an output shaft (14), and an output actuator (15), wherein the first drive device (11), the second drive device (12), and the gear box (13) are all fixedly mounted on the ship body, wherein the first drive device (11), the gear box (13), the output shaft (14), and the output actuator (15) are arranged in sequence, wherein the gear box (13) is provided with an output end and an input end, wherein the first drive device (11) is detachably connected to the input end, One end of the output shaft (14) is connected to the output end, and the other end of the output shaft (14) is connected to the output actuator (15); the first drive device (11) can drive the output shaft (14) to rotate; the second drive device (12) is sleeved on the outside of the output shaft (14); the second drive device (12) is transmission-connected to the output shaft (14); the second drive device (12) can drive the output shaft (14) to rotate; the rated power of the first drive device (11) is greater than the rated power of the second drive device (12); and the controller is connected to the first drive device (11) and the second drive device (12).

2. The propulsion system according to claim 1, characterized in that: It also includes a generator set (2), the second drive device (12) includes a hollow shaft motor, the generator set (2) is fixedly installed on the hull, the generator set (2) is connected to the hollow shaft motor, the shaft hole of the motor shaft of the hollow shaft motor is sleeved on the outside of the output shaft (14), and the motor shaft of the hollow shaft motor is fixedly connected to the output shaft (14).

3. The propulsion system according to claim 2, characterized in that: The propulsion device (1) further comprises a frequency converter (16), wherein the frequency converter (16) is connected to the second drive device (12) to adjust the actual power of the second drive device (12), the controller is connected to the frequency converter (16), and the generator set (2) is connected to the frequency converter (16).

4. The propulsion system according to claim 2, characterized in that: The second driving device (12) comprises a plurality of hollow shaft motors, and the plurality of hollow shaft motors are arranged in sequence along the axial direction of the output shaft (14).

5. The propulsion system according to claim 2, characterized in that: The rated power of the generator set (2) is 90 kW to 110 kW, and the rated power of the second drive device (12) is 35 kW to 45 kW.

6. The propulsion system according to claim 1, characterized in that The first driving device (11) is a diesel engine.

7. The propulsion system according to claim 1 or 6, characterized in that: The rated power of the first driving device (11) is 600 kW to 700 kW.

8. The propulsion system according to claim 1, characterized in that The rated power of the first driving device (11) is 15 to 18 times the rated power of the second driving device (12).

9. The propulsion system according to claim 1, characterized in that The output actuator (15) is a propeller or a jet pump.

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