Barb structure at meshing position of outboard engine reduction gearbox clutch and gear

Abstract

The utility model relates to the technical field of outboard engine reduction gearbox clutches and gears, and discloses a barb structure at the meshing position of an outboard engine reduction gearbox clutch and a gear, which comprises a driving shaft, a clutch and a gear, the driving shaft is used for driving parts on the right side to rotate, and a threaded groove is formed in the right end of the driving shaft and used for being matched with a nut to fix a driving part. The first gear fixedly sleeves the left end of the driving shaft, the gear of the first gear faces leftwards, the connecting end is used for being connected with the driving shaft, the connecting end is arranged at the left end of the driving shaft and used for being connected with the clutch to transmit power, and the second gear fixedly sleeves the outer wall of the connecting end and used for being connected with the clutch to transmit power. The gear of the second gear faces rightwards. Specifically, when the clutch and the gear begin to be meshed, the barb structure plays a guiding role, and due to the fact that the tip end of the barb faces the rotating direction of the gear, when the gear rotates to be close to the clutch, the barb can enable the clutch and the gear to be aligned and meshed more smoothly, and meshing accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of outboard motor gearbox clutch and gear technology, specifically a barb structure at the meshing point of the outboard motor gearbox clutch and gear. Background Technology

[0002] Outboard motors play a crucial role in a ship's propulsion system. The meshing performance of the clutch and gears in the gearbox directly affects the overall performance of the outboard motor, including the stability and reliability of power transmission.

[0003] Traditional clutch and gear meshing structures are prone to slippage during long-term operation. This is because in the complex working environment of outboard motors, such as high-speed rotation, frequent gear shifting, and water impact, conventional structures cannot guarantee a continuous meshing relationship.

[0004] Therefore, a barb structure is needed at the engagement point of the clutch and gear in the outboard motor gearbox to improve the reliability and durability of the clutch-gear engagement. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a barb structure at the engagement point between the clutch and gear in an outboard motor gearbox, thereby solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a barb structure at the engagement point of the clutch and gear in an outboard motor gearbox, comprising:

[0007] The drive shaft has a threaded groove at its right end, which is used to fix the drive component with a nut.

[0008] A clutch is used to connect gears, and barbs are provided on both sides of the clutch;

[0009] Gear 1 is used to connect the clutch to transmit power. Gear 1 is fixedly sleeved on the left end of the drive shaft, and the gear of gear 1 faces to the left.

[0010] A connecting end is used to connect to the drive shaft, and the connecting end is located at the left end of the drive shaft;

[0011] Gear 2 is used to connect the clutch to transmit power. Gear 2 is fixedly sleeved on the outer wall of the connecting end, and the gear of gear 2 faces to the right.

[0012] Preferred options also include:

[0013] A sliding hole is used to restrict the movement direction of the clutch, and the sliding hole is opened on the inside of the drive shaft.

[0014] Preferred options also include:

[0015] A fixing hole is used to restrict the movement of the clutch. The fixing hole is opened inside the clutch and is arranged in a corresponding manner with the sliding hole.

[0016] Preferably, the barb is disposed on the side of the meshing tooth of the clutch, the barb is triangular in shape, its bottom is connected to the tooth body of the clutch, and the tip of the barb faces the rotation direction of the gear.

[0017] Preferably, the connecting end and the drive shaft are arranged on the same axis, and the meshing tooth surfaces of gear one and gear two are symmetrically arranged.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. The hook structure at the engagement point between the clutch and gear in the outboard motor gearbox improves engagement stability: The hook structure effectively prevents the clutch and gear from disengaging under complex working conditions, improving engagement stability and thus ensuring the stability of the outboard motor power transmission.

[0020] 2. The barbed structure at the engagement point of the clutch and gear in the outboard motor gearbox extends service life: By reducing slippage at the engagement point, wear on the clutch and gear is reduced, extending their service life and lowering the maintenance cost of the outboard motor. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a three-dimensional structural schematic diagram of the present utility model;

[0023] Figure 3 This is a schematic diagram of the unfolded plane of the ionomer of this utility model.

[0024] In the diagram: 1. Drive shaft; 2. Gear 1; 3. Connecting end; 4. Gear 2; 5. Clutch. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example:

[0027] Please refer to Figures 1-3.

[0028] A barb structure at the meshing point between the clutch 5 and the gear in an outboard motor gearbox includes:

[0029] Drive shaft 1, with a threaded groove at the right end for use with a nut to fix the drive component;

[0030] Clutch 5 is used to connect gears, and barbs are provided on both sides of clutch 5;

[0031] Gear 1-2 is used to connect clutch 5 to transmit power. Gear 1-2 is fixedly sleeved on the left end of drive shaft 1, and the gear of gear 1-2 faces to the left.

[0032] Connecting end 3 is used to connect to drive shaft 1, and connecting end 3 is located at the left end of drive shaft 1;

[0033] Gear 2 4 is used to connect clutch 5 to transmit power. Gear 2 4 is fixedly sleeved on the outer wall of connecting end 3, and the gear of gear 2 4 faces to the right.

[0034] Specifically, when clutch 5 begins to mesh with the gear, the barb structure plays a guiding role. Since the tip of the barb faces the direction of gear rotation, when the gear rotates and approaches clutch 5, the barb can more smoothly align clutch 5 with the gear and improve the accuracy of meshing.

[0035] In this embodiment: a sliding hole is used to limit the movement direction of the clutch 5, and the sliding hole is opened on the inner side of the drive shaft 1;

[0036] In the embodiment: a fixing hole is used to restrict the movement of the clutch 5. The fixing hole is opened inside the clutch 5 and is correspondingly arranged with the sliding hole.

[0037] Specifically, a fixing rod can pass through the fixing hole, allowing the clutch 5 to move laterally along the drive shaft 1, thereby achieving the effect of stable movement of the clutch 5.

[0038] In this embodiment: the barb is provided on the side of the meshing tooth of the clutch 5. The barb is triangular in shape, with its bottom connected to the tooth body of the clutch 5 and the tip of the barb facing the rotation direction of the gear.

[0039] Specifically, the barb is set on the side of the meshing teeth of the clutch 5, such as... Figure 3 As shown, when the clutch 5 begins to mesh with the gear, the barb structure plays a guiding role. Since the tip of the barb faces the direction of gear rotation, when the gear rotates and approaches the clutch 5, the barb can more smoothly align the clutch 5 with the gear and improve the accuracy of meshing.

[0040] The height of the barb is h in mm. The value of h depends on the specifications of clutch 5 and gear. For example, in an 18-horsepower outboard motor, h is 4.5 mm. The tilt angle α of the barb relative to the vertical angle of the side of the clutch 5 tooth is 3°.

[0041] In the embodiment: the connecting end 3 and the drive shaft 1 are arranged on the same axis, and the meshing tooth surfaces of gear 1 2 and gear 2 4 are symmetrically arranged;

[0042] Specifically, the connecting end 3 and the drive shaft 1 are on the same axis and are simultaneously sleeved on the inner side of the clutch 5, which can achieve the effect of transmission and power transmission. The meshing tooth surfaces of gear 1 2 and gear 2 4 are symmetrically arranged, which can better mesh with the clutch 5 to achieve the effect of meshing gears.

[0043] Working principle:

[0044] When clutch 5 begins to mesh with the gear, the barb structure plays a guiding role. Since the tip of the barb faces the direction of gear rotation, when the gear rotates and approaches clutch 5, the barb can more smoothly align clutch 5 with the gear and improve the accuracy of meshing.

[0045] When the clutch 5 and the gear meshing point wear down after prolonged use, resulting in a reduction in the meshing contact area, the barb structure can tightly hook the gear. The triangular structure of the barb decomposes the reverse force into a component force along the side of the barb and a component force perpendicular to the side of the barb. The component force perpendicular to the side of the barb makes the barb more firmly and reliably contact the gear tooth groove, thereby enhancing the stability of the meshing.

[0046] When shifting gears is required, the clutch 5 can separate well from the gear meshing surface due to the small hook angle, thus meeting the requirements for smooth shifting.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reverse hook structure at the meshing position of a clutch (5) of a reduction gear of an outboard motor, characterized in that, Including: Drive shaft (1), the right end of the drive shaft (1) is provided with a threaded groove, which is used to cooperate with a nut to fix the driving part; Clutch (5) for connecting gear, the two sides of the clutch (5) are provided with barbs; Gear one (2) for connecting clutch (5) to transmit power, the gear one (2) is fixedly sleeved on the left end of the drive shaft (1), and the gear of the gear one (2) faces left; Connecting end (3) for connecting drive shaft (1), the connecting end (3) is arranged on the left end of the drive shaft (1); Gear two (4) for connecting clutch (5) to transmit power, the gear two (4) is fixedly sleeved on the outer wall of the connecting end (3), and the gear of the gear two (4) faces right.

2. The reverse hook structure of the clutch (5) and the gear engagement of the outboard engine reduction gearbox according to claim 1, characterized in that, Also including: Slide hole for limiting the moving direction of the clutch (5), the slide hole is arranged on the inner side of the drive shaft (1).

3. The reverse hook structure of the clutch (5) and the gear engagement of the outboard engine reduction gearbox according to claim 2, characterized in that, Also including: Fixing hole for limiting the movement of the clutch (5), the fixing hole is arranged in the clutch (5), and the fixing hole is correspondingly arranged with the slide hole.

4. The reverse hook structure of the clutch (5) and gear engagement of the outboard engine reduction gearbox according to claim 1, characterized in that: The barb is arranged on the meshing tooth side of the clutch (5), the shape of the barb is triangular, the bottom of the barb is connected with the tooth body of the clutch (5), and the tip of the barb faces the rotating direction of the gear.

5. The reverse hook structure of the clutch (5) and gear engagement of the outboard engine reduction gearbox according to claim 1, characterized in that: The connecting end (3) and the drive shaft (1) are arranged on the same axis, and the meshing tooth surfaces of the gear one (2) and the gear two (4) are symmetrically arranged.

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