Marine propeller gearbox

Abstract

The utility model discloses a marine propeller gearbox, which belongs to the technical field of marine propellers, and comprises a main box shell, a shaft pipe sleeve is fixedly mounted at the bottom end of the main box shell, a lower box shell is fixedly mounted at the bottom end of the shaft pipe sleeve, a clutch mechanism is arranged in the main box shell, and the lower box shell is fixedly mounted at the bottom end of the shaft pipe sleeve. A gear shifting mechanism is arranged in the main box shell, and a transmission mechanism is arranged in the shaft pipe sleeve and the lower box shell. The clutch mechanism and the gear shifting mechanism are arranged, the wet-type multi-plate clutch is adopted as a core component of the clutch mechanism, the clutch is composed of a plurality of metal friction plates and a pressing device, the metal friction plates are arranged alternately, the friction plates are soaked in lubricating oil, and the lubricating oil not only plays a cooling role, but also can provide a more stable friction coefficient. According to the utility model, the gear shifting mechanism and the transmission mechanism are arranged, and the horizontal shaft design is used, so that the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of marine propeller, in particular to a marine propeller gearbox. BACKGROUND

[0002] Marine propeller is usually driven by an electric or gasoline engine, with a propeller, through the propeller fast rotation, push the boat sailing in the water, and in the ship power system, the performance of the propeller gearbox directly affects the sailing efficiency of the ship, control stability and power transmission reliability.

[0003] The current marine propeller uses a triangular belt drive, commonly uses dry clutch as the mechanical clutch structure, this structure uses in the water surface, often because of splashing causes the problem of skidding, causes the mechanical transmission efficiency to be low, triangular band abnormal wear and tear etc.

[0004] Therefore, it is urgent to provide a marine propeller gearbox to solve the above problems. INVENTION CONTENTS

[0005] The utility model solves the technical problem in the prior art, and provides a marine propeller gearbox.

[0006] To solve the above technical problems, one technical scheme of the utility model is provided: a marine propeller gearbox is provided, which comprises a main box shell, a shaft sleeve is fixedly installed at the bottom end of the main box shell, a lower box shell is fixedly installed at the bottom end of the shaft sleeve, a clutch mechanism is arranged in the main box shell, a gear shifting mechanism is arranged in the main box shell, and a transmission mechanism is arranged in the shaft sleeve and the lower box shell.

[0007] The utility model is further provided as follows: the clutch mechanism comprises a clutch fixed in the main box shell, a first shaft is connected to the output shaft of the clutch, a first gear is fixedly installed outside the first shaft, and a clutch module is arranged on one side of the clutch.

[0008] Through the above technical scheme, when the ship starts, the engine starts to operate and provides power for the clutch, the clutch module controls the clutch to engage, the power of the engine is output to the first shaft through the clutch, the first shaft drives the first gear to rotate, and if it is necessary to temporarily interrupt power transmission, the clutch module controls the clutch to separate, and the power connection between the engine and the subsequent transmission mechanism is cut off.

[0009] The utility model is further provided as follows: the gear shifting mechanism comprises a second shaft rotatably installed in the main box shell, a second gear is fixedly installed outside the second shaft, and a third gear is fixedly installed outside the second shaft.

[0010] Through the above technical solution, the second shaft drives the second gear and the third gear to rotate.

[0011] The present invention is further configured such that: a third shaft is rotatably mounted inside the main housing, a fourth gear is fixedly mounted outside the third shaft, the outer surface of the fourth gear meshes with the outer surface of the first gear, and a fifth gear is fixedly mounted outside the third shaft, the outer surface of the fifth gear meshes with the outer surface of the second gear.

[0012] Through the above technical solution, the first gear drives the third shaft to rotate through the fourth gear, the third shaft drives the fifth gear to rotate, and the fifth gear drives the second shaft to rotate through the second gear.

[0013] The present invention is further configured such that: the transmission mechanism includes a fourth shaft rotatably mounted inside the main housing, a sixth gear is slidably connected to the outside of the fourth shaft, the outer surface of the sixth gear meshes with the outer surface of the fourth gear, and the outer surface of the sixth gear meshes with a third gear.

[0014] Through the above technical solution, the sixth gear drives the fourth shaft to rotate, and the sixth gear can move on the fourth shaft, thereby controlling the sixth gear to mesh with the fourth gear or the third gear to form three gears: forward, reverse and neutral.

[0015] The present invention is further configured such that: a first bevel gear is fixedly installed at one end of the fourth shaft, a fifth shaft is rotatably installed inside the shaft sleeve, a second bevel gear is fixedly installed at one end of the fifth shaft, and the outer surface of the second bevel gear meshes with the outer surface of the first bevel gear.

[0016] Through the above technical solution, the fourth shaft drives the first bevel gear to rotate, and the first bevel gear drives the fifth shaft to rotate through the second bevel gear.

[0017] The present invention is further configured such that: a shifting module is provided inside the main housing, the shifting module is rotatably connected to one side of the sixth gear, a third bevel gear is fixedly installed at the other end of the fifth shaft, a sixth shaft is rotatably installed inside the lower housing, a fourth bevel gear is fixedly installed outside the sixth shaft, and the outer surface of the fourth bevel gear meshes with the outer surface of the third bevel gear.

[0018] Through the above technical solution, the sixth gear is driven to move by the shift module, thereby performing a shift operation. The fifth shaft drives the third bevel gear to rotate, and the third bevel gear drives the sixth shaft to rotate through the fourth bevel gear.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. This utility model is equipped with a clutch mechanism and a shifting mechanism, and uses a wet multi-plate clutch as the core component of the clutch mechanism. This clutch consists of multiple alternating metal friction plates and a pressing device. The friction plates are immersed in lubricating oil. The lubricating oil not only plays a cooling role, but also provides a more stable coefficient of friction, reduces slippage, and improves mechanical efficiency.

[0021] 2. This utility model, by incorporating a shifting mechanism and a transmission mechanism, utilizes a horizontal shaft design, arranging the input shaft, intermediate transmission gear, and output shaft on the same horizontal line. This layout lowers the center of gravity of the transmission system, improves the stability of the equipment, facilitates connection and integration with other components, and makes it easier to interface with general-purpose engines. This significantly reduces the limitations users face when selecting engines and lowers operating costs. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a diagram of the internal structure of the present invention;

[0024] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0025] Figure 4 for Figure 2 A magnified view of a section at point B in the middle;

[0026] Figure 5 This is a diagram showing the internal structure of the main housing of this utility model.

[0027] In the diagram: 1. Main housing; 2. Shaft sleeve; 3. Lower housing; 4. Clutch mechanism; 401. Clutch; 402. First shaft; 403. First gear; 404. Clutch module; 5. Gear shifting mechanism; 501. Second shaft; 502. Second gear; 503. Third gear; 504. Third shaft; 505. Fourth gear; 506. Fifth gear; 6. Transmission mechanism; 601. Fourth shaft; 602. Sixth gear; 603. First bevel gear; 604. Fifth shaft; 605. Second bevel gear; 606. Gear shifting module; 607. Third bevel gear; 608. Sixth shaft; 609. Fourth bevel gear. Detailed Implementation

[0028] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0029] Please see Figures 1-5A marine propulsion gearbox includes a main housing 1, a shaft sleeve 2 fixedly mounted at the bottom of the main housing 1, and a lower housing 3 fixedly mounted at the bottom of the shaft sleeve 2. A clutch mechanism 4 is provided inside the main housing 1. The clutch mechanism 4 includes a clutch 401 fixed inside the main housing 1. The output shaft of the clutch 401 is connected to a first shaft 402. A first gear 403 is fixedly mounted on the outside of the first shaft 402. A clutch module 404 is provided on one side of the clutch 401. When the ship starts, the engine starts running and provides power to the clutch 401. The clutch module 404 controls the clutch 401 to engage. The engine power is transmitted to the first shaft 402 through the output shaft of the clutch 401 and a coupling. The first shaft 402 drives the first gear 403 to rotate. If it is necessary to temporarily interrupt power transmission, the clutch module 404 controls the clutch 401 to disengage, cutting off the power connection between the engine and the subsequent transmission mechanism 6.

[0030] like Figure 3 and Figure 5 As shown, a gear shifting mechanism 5 is provided inside the main housing 1. The gear shifting mechanism 5 includes a second shaft 501 rotatably mounted inside the main housing 1, a second gear 502 fixedly mounted on the outside of the second shaft 501, a third gear 503 fixedly mounted on the outside of the second shaft 501, a third shaft 504 rotatably mounted inside the main housing 1, a fourth gear 505 fixedly mounted on the outside of the third shaft 504, the outer surface of the fourth gear 505 meshing with the outer surface of the first gear 403, and a fifth gear 506 fixedly mounted on the outside of the third shaft 504, the outer surface of the fifth gear 506 meshing with the outer surface of the second gear 502. The first gear 403 drives the third shaft 504 to rotate through the fourth gear 505, the third shaft 504 drives the fifth gear 506 to rotate, the fifth gear 506 drives the second shaft 501 to rotate through the second gear 502, and the second shaft 501 drives the third gear 503 to rotate.

[0031] like Figures 3-5As shown, a transmission mechanism 6 is provided inside the shaft sleeve 2 and the lower housing 3. The transmission mechanism 6 includes a fourth shaft 601 rotatably mounted inside the main housing 1. A sixth gear 602 is slidably connected to the outside of the fourth shaft 601. The outer surface of the sixth gear 602 meshes with the outer surface of the fourth gear 505 and the third gear 503. A first bevel gear 603 is fixedly mounted at one end of the fourth shaft 601. A fifth shaft 604 is rotatably mounted inside the shaft sleeve 2. A second bevel gear 605 is fixedly mounted at one end of the fifth shaft 604. The outer surface of the second bevel gear 605 meshes with the outer surface of the first bevel gear 603. A shifting module 606 is provided inside the main housing 1. The shifting module 606 is rotatably connected to one side of the sixth gear 602. A third bevel gear 607 is fixedly mounted at the other end of the fifth shaft 604. The lower housing 3... The internal rotating part of the shaft 601 has a sixth shaft 608, and the external part of the sixth shaft 608 has a fourth bevel gear 609 fixedly mounted. The outer surface of the fourth bevel gear 609 meshes with the outer surface of the third bevel gear 607. The sixth gear 602 drives the fourth shaft 601 to rotate. The sixth gear 602 can move on the fourth shaft 601, thereby controlling the sixth gear 602 to mesh with the fourth gear 505 or the third gear 503 to form three gears: forward, reverse, and neutral. The shift module 606 drives the sixth gear 602 to move, thereby performing a shift operation. The fourth shaft 601 drives the first bevel gear 603 to rotate. The first bevel gear 603 drives the fifth shaft 604 to rotate through the second bevel gear 605. The fifth shaft 604 drives the third bevel gear 607 to rotate. The third bevel gear 607 drives the sixth shaft 608 to rotate through the fourth bevel gear 609.

[0032] In use, when the ship starts, the engine begins to run and provides power to the clutch 401. The clutch module 404 controls the clutch 401 to engage, and the engine's power is transmitted to the first shaft 402 through the clutch 401. The first shaft 402 drives the first gear 403 to rotate. If it is necessary to temporarily interrupt the power transmission, the clutch module 404 controls the clutch 401 to disengage, cutting off the power connection between the engine and the subsequent transmission mechanism 6. The first gear 403 drives the third shaft 504 to rotate through the fourth gear 505. The third shaft 504 drives the fifth gear 506 to rotate. The fifth gear 506 drives the second shaft 501 to rotate through the second gear 502. The second shaft 501 drives the third gear 506 to rotate. 3. The sixth gear 602 drives the fourth shaft 601 to rotate. The sixth gear 602 can move on the fourth shaft 601, thereby controlling the sixth gear 602 to mesh with the fourth gear 505 or the third gear 503 to form three gears: forward, reverse, and neutral. The shift module 606 drives the sixth gear 602 to move, allowing the ship to flexibly adjust its speed according to different navigation needs. The fourth shaft 601 drives the first bevel gear 603 to rotate. The first bevel gear 603 drives the fifth shaft 604 to rotate through the second bevel gear 605. The fifth shaft 604 drives the third bevel gear 607 to rotate. The third bevel gear 607 drives the sixth shaft 608 to rotate through the fourth bevel gear 609.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A marine propulsion gearbox, comprising a main housing (1), characterized in that: A shaft sleeve (2) is fixedly installed at the bottom end of the main housing (1), and a lower housing (3) is fixedly installed at the bottom end of the shaft sleeve (2). A clutch mechanism (4) is provided inside the main housing (1), a shifting mechanism (5) is provided inside the main housing (1), and a transmission mechanism (6) is provided inside the shaft sleeve (2) and the lower housing (3).

2. A marine propulsion gearbox according to claim 1, characterized in that: The clutch mechanism (4) includes a clutch (401) fixed inside the main housing (1). The output shaft of the clutch (401) is connected to a first shaft (402). A first gear (403) is fixedly installed on the outside of the first shaft (402). A clutch module (404) is provided on one side of the clutch (401).

3. A marine propulsion gearbox according to claim 2, characterized in that: The shifting mechanism (5) includes a second shaft (501) rotatably mounted inside the main housing (1), a second gear (502) fixedly mounted on the outside of the second shaft (501), and a third gear (503) fixedly mounted on the outside of the second shaft (501).

4. A marine propulsion gearbox according to claim 3, characterized in that: The main housing (1) is rotatably mounted with a third shaft (504), and a fourth gear (505) is fixedly mounted on the outside of the third shaft (504). The outer surface of the fourth gear (505) meshes with the outer surface of the first gear (403). The third shaft (504) is fixedly mounted with a fifth gear (506), and the outer surface of the fifth gear (506) meshes with the outer surface of the second gear (502).

5. A marine propulsion gearbox according to claim 4, characterized in that: The transmission mechanism (6) includes a fourth shaft (601) rotatably mounted inside the main housing (1). The fourth shaft (601) is externally limited and slidably connected to a sixth gear (602). The outer surface of the sixth gear (602) meshes with the outer surface of the fourth gear (505), and the outer surface of the sixth gear (602) meshes with a third gear (503).

6. A marine propulsion gearbox according to claim 5, characterized in that: A first bevel gear (603) is fixedly installed at one end of the fourth shaft (601), and a fifth shaft (604) is rotatably installed inside the shaft sleeve (2). A second bevel gear (605) is fixedly installed at one end of the fifth shaft (604), and the outer surface of the second bevel gear (605) meshes with the outer surface of the first bevel gear (603).

7. A marine propulsion gearbox according to claim 6, characterized in that: The main housing (1) is equipped with a shift module (606) inside. The shift module (606) is rotatably connected to one side of the sixth gear (602). The other end of the fifth shaft (604) is fixedly installed with a third bevel gear (607). The lower housing (3) is rotatably installed with a sixth shaft (608). The outside of the sixth shaft (608) is fixedly installed with a fourth bevel gear (609). The outer surface of the fourth bevel gear (609) meshes with the outer surface of the third bevel gear (607).

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