CN111874199A

CN111874199A - Low-rotating-speed output marine propeller mounting machine

Info

Publication number: CN111874199A
Application number: CN202010793928.5A
Authority: CN
Inventors: 滕秀峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2020-11-03

Abstract

The invention discloses a low-rotating-speed output marine propeller hanging machine which comprises an engine and a propeller hanging machine mainly composed of propellers, wherein the engine is connected with the propellers through a speed reducing mechanism used for reducing the rotating speed of the propellers to between 300-700 revolutions. According to the low-rotation-speed output marine propeller hanging machine with the structure, the belt speed reduction unit, the upper gear box speed reduction assembly and the lower gear box speed reduction assembly in the speed reduction mechanism are adopted, three-stage speed reduction between the engine and the propeller is realized, the engine and the propeller can perform speed reduction transmission between 2.5:1 and 5:1, high-rotation-speed power output by the engine can be converted into low-rotation-speed and high-torque power to be output to the propeller, the diameter of the propeller blade can be increased, high thrust and high navigational speed are provided for ships, the driving efficiency is improved, and the beneficial effects of energy conservation and consumption reduction are achieved.

Description

Low-rotating-speed output marine propeller mounting machine

Technical Field

The invention relates to a propeller mounting machine technology, in particular to a low-rotating-speed output marine propeller mounting machine.

Background

The marine outboard motor is one of the outboard motor, and marine internal-combustion engine drive outboard motor and screw combination are integrative, and external hanging is at the stern, and the screw stretches into the aquatic, and rotatory promotion boats and ships advance, and present marine outboard motor of fishing generally drives boats and ships through upper and lower case gear box normal direction diversion to power transmission for the screw, and the transmission speed ratio is less than 2 usually: 1, the rotating speed of the propeller is too high and the torque is small in use, so that the equivalent diameter of the propeller blade is limited, the propeller blade is not suitable for the requirement of low navigational speed and large towing force of a fishing boat, the optimal matching power cannot be provided for the propeller, and the driving efficiency is reduced.

Disclosure of Invention

The invention aims to provide a low-rotating-speed output marine propeller mounting machine, which adopts a belt speed reduction unit, a first gear speed reduction assembly and a second gear speed reduction assembly in a speed reduction mechanism to realize three-stage speed reduction between an engine and a propeller, so that the engine and the propeller can perform speed reduction transmission between 2.5:1 and 5:1, high-rotating-speed power output by the engine can be converted into low-rotating-speed and high-torque power to be output to the propeller, the diameter of the propeller blade can be increased, high thrust and high navigational speed are provided for ships, the driving efficiency is improved, and the beneficial effects of saving energy and reducing consumption are achieved.

In order to achieve the purpose, the invention provides a low-rotating-speed output marine propeller hanging machine, which comprises an engine and a propeller hanging machine mainly composed of a propeller, wherein the engine is connected with the propeller through a speed reducing mechanism used for reducing the rotating speed of the propeller to 300-700 revolutions.

Preferably, the deceleration mechanism includes a belt deceleration unit and a gear deceleration unit.

Preferably, the belt deceleration unit comprises a small-diameter belt pulley connected with the output end of the engine and a large-diameter belt pulley connected with the small-diameter belt pulley through a belt, the large-diameter belt pulley is connected with one end of a transverse transmission shaft of the upper gearbox, and the other end of the transverse transmission shaft penetrates into the upper gearbox and is rotatably connected with the inner wall of the upper gearbox.

Preferably, the diameter ratio of the small-diameter pulley to the large-diameter pulley is between 1:1.5 and 1: 2.4.

Preferably, the gear speed reducing unit comprises an upper gear box speed reducing assembly and a lower gear box speed reducing assembly which are connected with the output end of the belt speed reducing unit.

Preferably, the upper gearbox speed reduction assembly comprises a first bevel pinion fixed on the outer side of the transverse transmission shaft and a first bevel pinion meshed with the first bevel pinion, the first bevel pinion is connected with the top end of the vertical transmission shaft, and the bottom end of the vertical transmission shaft penetrates through the middle cylinder, enters the lower gearbox and is connected with the lower gearbox speed reduction assembly.

Preferably, the reduction ratio of the first bevel pinion gear and the first bevel bull gear is 1.1 to 1.4 to 1.

Preferably, the lower gearbox speed reduction assembly comprises a second bevel pinion connected with the bottom end of the vertical transmission shaft and a second bevel pinion meshed with the second bevel pinion, the second bevel pinion is connected with one end of an umbrella shaft, and the other end of the umbrella shaft penetrates through the lower gearbox and is connected with a propeller hub of the propeller.

Preferably, the reduction ratio of the second bevel pinion gear to the second bevel bull gear is 1.3 to 2.5 to 1.

Therefore, the low-rotation-speed output marine propeller hanging machine with the structure realizes three-stage speed reduction between the engine and the propeller by adopting the belt speed reduction unit, the upper gearbox speed reduction assembly and the lower gearbox speed reduction assembly in the speed reduction mechanism, so that the engine and the propeller are driven between 2.5:1 and 5:1, high-rotation-speed power output by the engine can be converted into low-rotation-speed and high-torque power to be output to the propeller, the diameter of the propeller blade can be increased, high thrust and high navigational speed are provided for ships, the driving efficiency is improved, and the beneficial effects of saving energy and reducing consumption are achieved.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

FIG. 1 is a front cross-sectional view of a low speed output marine oar loader according to an embodiment of the present invention;

fig. 2 is a side cross-sectional view of a low speed output marine oar loader according to an embodiment of the present invention.

Wherein: 1. an engine; 2. a small diameter pulley; 3. a large diameter pulley; 4. an upper gearbox; 5. a first bevel pinion gear; 6. a transverse transmission shaft; 7. a first big bevel gear; 8. a vertical transmission shaft; 9. a middle cylinder; 10. a lower gear box; 11. a propeller; 12. a second big bevel gear; 13. a paddle shaft; 14. a second bevel pinion.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, and it should be noted that the present embodiment is based on the technical solution, and the detailed implementation and the specific operation process are provided, but the protection scope of the present invention is not limited to the present embodiment.

FIG. 1 is a front cross-sectional view of a low speed output marine oar loader according to an embodiment of the present invention; fig. 2 is a side sectional view of a low-speed-output propeller mounting machine for a ship according to an embodiment of the present invention, and as shown in the drawing, the structure of the present invention includes an engine 1 and a propeller mounting machine mainly composed of a propeller 12, and the engine 1 is connected to the propeller 12 via a speed reduction mechanism for reducing the speed of the propeller 12 to between 300 and 700 revolutions.

Specifically, the deceleration mechanism comprises a belt deceleration unit and a gear deceleration unit.

The belt speed reducing unit comprises a small-diameter belt pulley 2 connected with the output end of the engine 1 and a large-diameter belt pulley 3 connected with the small-diameter belt pulley 2 through a belt, the large-diameter belt pulley is connected with one end of a transverse transmission shaft 6 of the upper gear box 4, and the other end of the transverse transmission shaft 6 penetrates into the upper gear box 4 and is connected with the inner wall of the upper gear box 4 in a rotating mode. The diameter ratio of the small-diameter pulley 2 to the large-diameter pulley 3 is 1:1.5 to 1: 2.4.

Preferably, the gear reduction unit comprises an upper gearbox 4 reduction assembly and a lower gearbox 10 reduction assembly connected to the output of the belt reduction unit.

More specifically, the upper gearbox 4 speed reduction assembly comprises a first bevel pinion 5 fixed on a transverse transmission shaft of the upper gearbox 4 and a first bevel pinion 7 engaged with the first bevel pinion 5, the first bevel pinion 7 is connected with the top end of a vertical transmission shaft 8, and the bottom end of the vertical transmission shaft 8 penetrates through a middle cylinder 9 and then enters the lower gearbox 10 to be connected with the lower gear speed reduction assembly. The second step reduction ratio of the first bevel pinion 5 and the first bevel pinion 7 is 1.1 to 1.4 to 1.

Preferably, the speed reduction assembly of the lower gearbox 10 comprises a second bevel pinion 14 connected with the bottom end of the vertical transmission shaft 8 and a second bevel pinion 12 engaged with the second bevel pinion 14, the second bevel pinion 12 is connected with one end of a propeller shaft 13, and the other end of the propeller shaft 13 penetrates through the lower gearbox 10 and is connected with the hub of the propeller 12. The reduction ratio of the second bevel pinion 14 to the second bevel pinion 12 is 1.3 to 2.5 to 1.

The working process is as follows:

after the engine 1 is started, the engine 1 drives the large-diameter belt pulley 3 to rotate through the small-diameter belt pulley 2 and the belt, primary speed reduction rotation is achieved, further, the upper gearbox 4 is driven to rotate through the transverse transmission shaft, the transverse transmission shaft 6 drives the first big bevel gear 7 to rotate in a steering mode through the first small bevel gear 5, secondary speed reduction is achieved, further, the vertical transmission shaft 8 is driven to rotate, the vertical transmission shaft 8 drives the second big bevel gear 12 to rotate in a steering mode through the second small bevel gear 14, tertiary speed reduction is achieved, accordingly, the propeller 12 is driven to rotate through the propeller shaft 13, and the ship is pushed to advance.

Therefore, the low-rotation-speed output marine propeller hanging machine with the structure realizes three-stage speed reduction between the engine and the propeller by adopting the belt speed reduction unit, the upper gearbox speed reduction assembly and the lower gearbox speed reduction assembly in the speed reduction mechanism, so that the engine and the propeller are in speed reduction transmission between 2.5:1 and 5:1, high-rotation-speed power output by the engine can be converted into low-rotation-speed and high-torque power to be output to the propeller, the diameter of the propeller blade can be increased, high thrust and high navigational speed are provided for ships, the driving efficiency is improved, and the beneficial effects of saving energy and reducing consumption are achieved.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a low rotational speed output marine outboard motor, includes that engine and the outboard motor of mainly constituteing by the screw constitute which characterized in that: the engine is connected with the propeller through a speed reduction mechanism for reducing the rotating speed of the propeller to between 300 and 700 revolutions.

2. The low speed output marine outboard propulsion system of claim 1, further comprising: the speed reducing mechanism comprises a belt speed reducing unit and a gear speed reducing unit.

3. The low speed output outboard propulsion system of claim 2, further comprising: the belt speed reduction unit comprises a small-diameter belt pulley connected with the output end of the engine and a large-diameter belt pulley connected with the small-diameter belt pulley through a belt, the large-diameter belt pulley is connected with one end of a transverse transmission shaft of the upper gearbox, and the other end of the transverse transmission shaft penetrates into the upper gearbox and is rotatably connected with the inner wall of the upper gearbox.

4. The low speed output marine outboard propulsion system of claim 3, further comprising: the diameter ratio of the small-diameter belt pulley to the large-diameter belt pulley is 1: 1.5-1: 2.4.

5. The low speed output marine outboard propulsion system of claim 3, further comprising: the gear speed reducing unit comprises an upper gear box speed reducing component and a lower gear box speed reducing component which are connected with the output end of the belt speed reducing unit.

6. The low speed output marine outboard propulsion system of claim 5, further comprising: the upper gearbox speed reduction assembly comprises a first small bevel gear fixed on the upper gearbox transverse transmission shaft and a first big bevel gear meshed with the first small bevel gear, the first big bevel gear is connected with the top end of the vertical transmission shaft, and the bottom end of the vertical transmission shaft penetrates through the middle cylinder, enters the lower gearbox and is connected with the second gear speed reduction assembly.

7. The low speed output marine outboard propulsion system of claim 6, further comprising: the speed reduction ratio of the first small bevel gear and the first big bevel gear is 1.1-1.4 to 1.

8. The low speed output marine outboard propulsion system of claim 6, further comprising: the lower gear box speed reduction assembly comprises a second small bevel gear connected with the bottom end of the vertical transmission shaft and a second large bevel gear meshed with the second small bevel gear, the second large bevel gear is connected with one end of a propeller shaft, and the other end of the propeller shaft penetrates through the lower gear box and then is connected with a propeller hub of a propeller.

9. The low speed output marine outboard propulsion system of claim 8, further comprising: the reduction ratio of the second bevel pinion to the second bevel bull gear is 1.3 to 2.5 to 1.