Gearbox and ship

Abstract

The utility model belongs to the technical field of ships, and discloses a gear box and a ship, the gear box comprises a box body, an input shaft system, an output shaft system, an ahead clutch shaft system, an ahead gear shaft, a back-up clutch shaft system and a back-up gear shaft. The forward gear shaft is connected with the first clutch, when the input shaft system rotates, the forward gear shaft can be driven to rotate through the first clutch, the forward gear shaft is configured to drive the output shaft system to rotate, the reverse clutch shaft system is rotationally arranged in the box body, the reverse gear shaft is connected with the second clutch, and when the input shaft system rotates, the reverse gear shaft is configured to drive the output shaft system to rotate. The reversing gear shaft can be driven to rotate through the ahead clutch shaft system and the second clutch, and the reversing gear shaft is configured to drive the output shaft system to rotate. The ship comprises a propeller and a gearbox, and the output shaft system is connected to the propeller. Through the arrangement, the gearbox can be more integrated, and effective transmission and stability of power are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to a gear box and a ship. Background Art

[0002] A marine gearbox is a gear transmission device specially designed for ships. Its main purpose is to reduce speed and increase torque, reverse the ship, and withstand propeller thrust. It is widely used in various types of ships.

[0003] Currently, marine gearboxes are not highly integrated, resulting in a significant amount of installation space. Furthermore, existing marine gearboxes cannot guarantee efficient power transmission during forward and reverse propulsion. Without main engine speed regulation, these gearboxes struggle to meet the varying speed requirements of a ship during forward and reverse propulsion. Utility Model Content

[0004] The purpose of the utility model is to provide a gear box that can be more integrated and ensure the effective transmission and stability of power.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A gearbox comprising:

[0007] Box;

[0008] An input shaft system, rotatably connected to the housing;

[0009] An output shaft system, rotatably connected to the housing;

[0010] A forward clutch shaft system is rotatably disposed in the housing, wherein the forward clutch shaft system includes a first clutch;

[0011] a spur gear shaft connected to the first clutch, such that when the input shaft system rotates, the spur gear shaft can be driven to rotate via the first clutch, and the spur gear shaft is configured to drive the output shaft system to rotate;

[0012] a reverse clutch shaft system rotatably disposed in the housing, the reverse clutch shaft system including a second clutch;

[0013] The reverse gear shaft is connected to the second clutch. When the input shaft system rotates, the reverse gear shaft can be driven to rotate through the forward clutch system and the second clutch. The reverse gear shaft is configured to drive the output shaft system to rotate.

[0014] Optionally, the speed ratio of the output shaft system when driven by the reverse gear shaft is 1.15 to 1.25 times the speed ratio of the output shaft system when driven by the forward gear shaft.

[0015] Optionally, the input shaft system includes an input shaft body, and the input shaft body is configured to be connected to a driving mechanism through a coupling, and the driving mechanism can drive the input shaft body to rotate around its own axis through the coupling.

[0016] Optionally, the input shaft system further includes an input gear, which is sleeved on the input shaft body; the forward clutch shaft system further includes a first driven shaft and a driven wheel, which is sleeved on the first driven shaft and meshedly connected to the input gear.

[0017] Optionally, the first driven shaft is connected to the spur gear shaft via the first clutch.

[0018] Optionally, the forward clutch shaft system also includes a first transmission gear, which is arranged on the first driven shaft, and the reverse clutch shaft system also includes a second driven shaft and a second transmission gear, which is arranged on the second driven shaft and meshed with the first transmission gear.

[0019] Optionally, the second driven shaft is connected to the reverse gear shaft via the second clutch.

[0020] Optionally, the output shaft system includes an output shaft body and an output gear, the output gear is sleeved on the output shaft body, the forward gear shaft is meshedly connected to the output gear, and the reverse gear shaft is meshedly connected to the output gear.

[0021] Optionally, the input shaft system and the output shaft system are coaxially arranged, the spur gear shaft and the reverse gear shaft are parallel and spaced apart, and the output shaft system, the spur gear shaft and the reverse gear shaft are arranged in a triangle.

[0022] Another object of the present invention is to provide a ship that can achieve stable sailing and higher safety.

[0023] To achieve this purpose, the present invention adopts the following technical solutions:

[0024] A ship comprises a propeller and the gearbox as described above, wherein the output shaft is connected to the propeller.

[0025] Beneficial effects of the utility model:

[0026] The utility model provides a gearbox and a ship. The gearbox includes a housing, an input shaft system, an output shaft system, a forward clutch system, a forward gear shaft, a reverse clutch system, and a reverse gear shaft. The input shaft system is rotationally connected to the housing, the output shaft system is rotationally connected to the housing, the forward clutch system is rotationally arranged in the housing, and the reverse clutch system is rotationally arranged in the housing. This arrangement realizes a high degree of integration of the gearbox, and improves the overall compactness and space utilization of the gearbox. When the ship is moving forward, the first clutch is in an engaged state, the second clutch is in a disengaged state, the input shaft system rotates, and the forward gear shaft is driven to rotate by the first clutch, and the forward gear shaft drives the output shaft system to rotate, so that the power of the input shaft system can be effectively transmitted to the forward gear shaft through the forward clutch system, and then transmitted to the output shaft system to drive the ship forward, thereby ensuring the power transmission efficiency and stability of the ship during the forward movement. When the vessel is moving astern, the first clutch is disengaged and the second clutch is engaged. The input shaft system rotates, driving the reverse gear shaft through the forward clutch system and the second clutch. The reverse gear shaft then drives the output shaft system, thereby enabling power switching between forward and reverse, and ensuring efficient and stable power transmission during reverse. The vessel includes a propeller and a gearbox, with the output shaft system connected to the propeller. This arrangement allows the gearbox of the present application to be more integrated, ensuring efficient and stable power transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of a gearbox provided by an embodiment of the present utility model;

[0028] Figure 2 It is a schematic diagram of the internal structure of the gear box provided by an embodiment of the present utility model.

[0029] In the picture:

[0030] 1. Housing; 2. Input shaft system; 21. Input shaft body; 22. Input gear; 3. Output shaft system; 31. Output shaft body; 32. Output gear; 4. Forward clutch shaft system; 41. First driven shaft; 42. Driven wheel; 43. First transmission gear; 5. Forward gear shaft; 6. Reverse clutch shaft system; 61. Second driven shaft; 62. Second transmission gear; 7. Reverse gear shaft. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0032] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0034] In the description of this embodiment, terms such as "upper," "lower," and "right" are used to refer to positions or locations based on the positions or locations shown in the accompanying drawings. These terms are intended solely to facilitate description and simplify operation, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0035] like Figure 1 and Figure 2 As shown, this embodiment provides a gearbox, which includes a housing 1, an input shaft system 2, an output shaft system 3, a forward clutch system 4, a forward gear shaft 5, a reverse clutch system 6, and a reverse gear shaft 7. The input shaft system 2 is rotatably connected to the housing 1, the output shaft system 3 is rotatably connected to the housing 1, the forward clutch system 4 is rotatably disposed in the housing 1, the forward clutch system 4 includes a first clutch, the forward gear shaft 5 is connected to the first clutch, and when the input shaft system 2 rotates, the forward gear shaft 5 can be driven to rotate through the first clutch. The forward gear shaft 5 is configured to drive the output shaft system 3 to rotate. The reverse clutch system 6 is rotatably disposed in the housing 1, the reverse clutch system 6 includes a second clutch, and the reverse gear shaft 7 is connected to the second clutch. When the input shaft system 2 rotates, the reverse gear shaft 7 can be driven to rotate through the forward clutch system 4 and the second clutch. The reverse gear shaft 7 is configured to drive the output shaft system 3 to rotate.

[0036] In this embodiment, the input shaft system 2 is rotatably connected to the housing 1, the output shaft system 3 is rotatably connected to the housing 1, the forward clutch system 4 is rotatably disposed within the housing 1, and the reverse clutch system 6 is rotatably disposed within the housing 1. This arrangement achieves a highly integrated gearbox, improving the overall compactness and space utilization of the gearbox. When the ship is moving forward, the first clutch is engaged and the second clutch is disengaged. The input shaft system 2 rotates, driving the forward gear shaft 5 via the first clutch, which in turn drives the output shaft system 3. This allows the power of the input shaft system 2 to be effectively transmitted via the forward clutch system 4 to the forward gear shaft 5, and then to the output shaft system 3 to drive the ship forward, thereby ensuring efficient and stable power transmission during the ship's forward motion. When the vessel is moving astern, the first clutch is disengaged and the second clutch is engaged. The input shaft system 2 rotates, driving the reverse gear shaft 7 through the forward clutch system 4 and the second clutch. The reverse gear shaft 7 then drives the output shaft system 3, thereby enabling power switching between forward and reverse, and ensuring efficient and stable power transmission during reverse. This arrangement allows the gearbox of this embodiment to be more integrated, ensuring efficient and stable power transmission.

[0037] The specific structure of the gearbox is described below:

[0038] Specifically, if Figure 2 As shown, the input shaft system 2 includes an input shaft body 21, which is connected to a drive mechanism via a coupling to ensure stable power input and facilitate maintenance. The drive mechanism can drive the input shaft body 21 to rotate about its own axis via the coupling, thereby ensuring smooth power transmission. The drive mechanism includes, but is not limited to, a diesel engine, an electric motor, and the like, as long as it can achieve the aforementioned functions.

[0039] Specifically, the input shaft system 2 also includes an input gear 22, which is sleeved onto the input shaft body 21 to ensure a stable connection between the two. The forward clutch shaft system 4 also includes a first driven shaft 41 and a driven wheel 42. The driven wheel 42 is sleeved onto the first driven shaft 41 and meshed with the input gear 22. When the input shaft body 21 rotates, the input gear 22 rotates, which in turn drives the driven wheel 42, thereby transmitting power to the first driven shaft 41, causing the first driven shaft 41 to rotate relative to the housing 1, ensuring smooth power transmission.

[0040] More specifically, the first driven shaft 41 is connected to the spur gear shaft 5 via a first clutch, allowing the first driven shaft 41 to transmit power to the spur gear shaft 5. By providing a first clutch between the first driven shaft 41 and the spur gear shaft 5, stable power transmission and timely disconnection can be ensured. When the ship needs to travel in spur gear, the first clutch engages, causing the first driven shaft 41 to rotate the spur gear shaft 5, which in turn drives the output shaft system 3 to rotate, ensuring the smooth progress of the ship. When the ship needs to quickly decelerate or stop in an emergency, the first clutch can be quickly disengaged, disconnecting the power connection between the first driven shaft 41 and the spur gear shaft 5, thereby protecting the gearbox from damage.

[0041] Specifically, the forward clutch shaft system 4 further includes a first transmission gear 43, which is disposed on the first driven shaft 41. The reverse clutch shaft system 6 further includes a second driven shaft 61 and a second transmission gear 62, which is disposed on the second driven shaft 61 and meshedly connected to the first transmission gear 43. When the input shaft 21 rotates, the input gear 22 drives the driven gear 42 to rotate, causing the first driven shaft 41 to rotate about its own axis. The first driven shaft 41 then drives the first transmission gear 43 to rotate, which in turn drives the second transmission gear 62, which meshes with the first transmission gear 43, to rotate the second driven shaft 61 about its own axis, thereby ensuring stable power transmission.

[0042] More specifically, the speed ratio of the output shaft system 3 driven by the reverse gear shaft 7 is 1.15 to 1.25 times the speed ratio of the output shaft system 3 driven by the forward gear shaft 5. This ensures that, when the drive mechanism is not regulating speed, the output speed of the output shaft system 3 when the vessel is in reverse is lower than the output speed of the output shaft system 3 when the vessel is in forward motion. This arrangement ensures that the vessel's speed when in reverse is lower than its speed when in forward motion, thereby better adapting to various navigation conditions, such as narrow waters and emergency avoidance scenarios, and further enhancing the vessel's maneuverability and safety. It will be appreciated that, in this embodiment, to achieve the aforementioned functionalities, the number of teeth on the second transmission gear 62 is set to 1.15 to 1.25 times the number of teeth on the first transmission gear 43 to ensure that the forward and reverse speed ratios of the gearbox are different.

[0043] More specifically, the second driven shaft 61 is connected to the reverse gear shaft 7 via a second clutch, allowing the second driven shaft 61 to transmit power to the reverse gear shaft 7. The provision of a second clutch between the second driven shaft 61 and the reverse gear shaft 7 ensures stable power transmission and timely disconnection. When the vessel needs to reverse, the second clutch engages, causing the second driven shaft 61 to rotate the reverse gear shaft 7, which in turn drives the output shaft system 3, ensuring smooth reverse movement of the vessel.

[0044] Specifically, the output shaft system 3 includes an output shaft body 31 and an output gear 32. The output gear 32 is sleeved on the output shaft body 31, and the spur gear shaft 5 is meshed and connected to the output gear 32. When the first driven shaft 41 and the first clutch between the spur gear shaft 5 are engaged, the spur gear shaft 5 rotates to drive the output gear 32 to rotate, and drives the output shaft body 31 to rotate relative to the box body 1, thereby achieving stable power output to ensure that the ship can move forward stably.

[0045] More specifically, the reverse gear shaft 7 is meshed and connected to the output gear 32. When the second clutch between the second driven shaft 61 and the reverse gear shaft 7 is engaged, the reverse gear shaft 7 rotates to drive the output gear 32 to rotate, and drives the output shaft body 31 to rotate relative to the box body 1, thereby achieving stable power output to ensure that the ship can reverse smoothly.

[0046] Specifically, if Figure 1 and Figure 2 As shown, in this embodiment, the input shaft system 2 and the output shaft system 3 are coaxially arranged, the forward gear shaft 5 and the reverse gear shaft 7 are parallel and spaced apart, and the output shaft system 3, the forward gear shaft 5 and the reverse gear shaft 7 are arranged in a triangle, so that the structure of the gearbox is more compact and the power transmission is reasonable and stable.

[0047] The specific working process of the gearbox is described below:

[0048] First, when the ship needs to move forward, the drive mechanism drives the input shaft 21 to rotate about its own axis through the coupling. The rotation of the input shaft 21 drives the input gear 22 to rotate, and the input gear 22 drives the driven wheel 42 to rotate, thereby transmitting power to the first driven shaft 41, causing the first driven shaft 41 to rotate relative to the housing 1. The rotation of the first driven shaft 41 drives the first transmission gear 43 to rotate, and drives the second transmission gear 62 meshing with the first transmission gear 43 to rotate, causing the second driven shaft 61 to rotate about its own axis. At this time, the second clutch between the second driven shaft 61 and the reverse gear shaft 7 is disengaged, and the second driven shaft 61 does not transmit power to the reverse gear shaft 7. Because the first driven shaft 41 is connected to the forward gear shaft 5 through the first clutch, the first driven shaft 41 transmits power to the forward gear shaft 5, which drives the output gear 32 to rotate through the forward gear shaft 5, and drives the output shaft 31 to rotate relative to the housing 1, thereby achieving stable power output and ensuring the stable progress of the ship. At the same time, since the reverse gear shaft 7 is meshedly connected to the output gear 32 , the reverse gear shaft 7 rotates in the reverse direction under the driving action of the output shaft body 31 .

[0049] When the ship needs to reverse, the driving mechanism drives the input shaft 21 to rotate around its own axis through the coupling. The rotation of the input shaft 21 drives the input gear 22 to rotate, and the input gear 22 drives the driven wheel 42 to rotate, thereby transmitting power to the first driven shaft 41, so that the first driven shaft 41 rotates relative to the box body 1. At this time, the first clutch between the first driven shaft 41 and the forward gear shaft 5 is disconnected, so that the first driven shaft 41 will not transmit power to the forward gear shaft 5, but will drive the first transmission gear 43 to rotate through the rotation of the first driven shaft 41, and drive the second transmission gear 62 engaged with the first transmission gear 43 to rotate, so that the second driven shaft 61 rotates around its own axis. Since the second clutch between the second driven shaft 61 and the reverse gear shaft 7 is engaged, the second driven shaft 61 drives the reverse gear shaft 7 to rotate, and the reverse gear shaft 7 drives the output gear 32 to rotate, and drives the output shaft 31 to rotate relative to the box body 1, thereby achieving stable power output to ensure that the ship can reverse smoothly. At the same time, since the output gear 32 is meshedly connected to the spur gear shaft 5 , the spur gear shaft 5 rotates in the reverse direction.

[0050] This embodiment also provides a ship, which includes a propeller and a gearbox. The output shaft system 3 is connected to the propeller, which can achieve stable driving of the ship and higher safety.

[0051] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Gear box, characterized in that, include: Box (1); An input shaft system (2) is rotatably connected to the housing (1); An output shaft system (3) is rotatably connected to the housing (1); A forward clutch shaft system (4) is rotatably arranged in the housing (1), and the forward clutch shaft system (4) includes a first clutch; A spur gear shaft (5) is connected to the first clutch, and when the input shaft system (2) rotates, the spur gear shaft (5) can be driven to rotate through the first clutch, and the spur gear shaft (5) is configured to drive the output shaft system (3) to rotate; A reverse clutch shaft system (6) is rotatably disposed in the housing (1), and the reverse clutch shaft system (6) includes a second clutch; The reverse gear shaft (7) is connected to the second clutch. When the input shaft system (2) rotates, the forward clutch shaft system (4) and the second clutch can drive the reverse gear shaft (7) to rotate. The reverse gear shaft (7) is configured to drive the output shaft system (3) to rotate.

2. The gearbox according to claim 1, characterized in that The speed ratio of the output shaft system (3) driven by the reverse gear shaft (7) is 1.15 to 1.25 times the speed ratio of the output shaft system (3) driven by the forward gear shaft (5).

3. The gearbox according to claim 1, characterized in that The input shaft system (2) comprises an input shaft body (21), wherein the input shaft body (21) is configured to be connected to a driving mechanism via a coupling, and the driving mechanism can drive the input shaft body (21) to rotate around its own axis via the coupling.

4. The gearbox according to claim 3, characterized in that The input shaft system (2) further comprises an input gear (22), which is sleeved on the input shaft body (21); the forward clutch shaft system (4) further comprises a first driven shaft (41) and a driven wheel (42), which is sleeved on the first driven shaft (41) and meshedly connected to the input gear (22).

5. The gearbox according to claim 4, characterized in that The first driven shaft (41) is connected to the spur gear shaft (5) via the first clutch.

6. The gearbox according to claim 4, characterized in that The forward clutch shaft system (4) further includes a first transmission gear (43), which is arranged on the first driven shaft (41); the reverse clutch shaft system (6) further includes a second driven shaft (61) and a second transmission gear (62), which is arranged on the second driven shaft (61) and meshedly connected to the first transmission gear (43).

7. The gearbox according to claim 6, characterized in that The second driven shaft (61) is connected to the reverse gear shaft (7) via the second clutch.

8. The gearbox according to any one of claims 1 to 7, characterized in that: The output shaft system (3) comprises an output shaft body (31) and an output gear (32), wherein the output gear (32) is sleeved on the output shaft body (31), the forward gear shaft (5) is meshedly connected to the output gear (32), and the reverse gear shaft (7) is meshedly connected to the output gear (32).

9. The gearbox according to any one of claims 1 to 7, characterized in that: The input shaft system (2) and the output shaft system (3) are coaxially arranged, the spur gear shaft (5) and the reverse gear shaft (7) are parallel and spaced apart, and the output shaft system (3), the spur gear shaft (5) and the reverse gear shaft (7) are arranged in a triangle.

10. A vessel, characterized in that It comprises a propeller and a gearbox according to any one of claims 1 to 9, wherein the output shaft system (3) is connected to the propeller.

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