Propulsion device for ship

By adopting the design of alternating use of two motors and natural cooling of spiral condenser tubes in the ship propulsion device, the problems of single motor being easily damaged and high energy consumption of water pump cooling are solved, and motor protection and propulsion efficiency are improved.

CN120621644APending Publication Date: 2025-09-12SHANDONG WOMENS UNIV

Patent Information

Application Number
CN202510994485.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-18
Publication Date
2025-09-12

AI Technical Summary

Technical Problem

In existing ship propulsion systems, single motors are easily damaged and require water pumps to drive cooling, which leads to difficulties in maintenance and high power consumption.

Method used

It adopts a driving method in which two motors are used alternately, and natural cooling is achieved through a spiral condenser to avoid damage to a single motor during long-term operation. The water cooling mechanism does not require a water pump drive, and the impeller rotation is controlled by a combination of plug connectors and gear meshing to improve propulsion efficiency.

Benefits of technology

Double protection of the motor is achieved, which reduces the risk of motor damage, saves electricity consumption and manufacturing costs, and improves propulsion efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a propulsion device for a ship, and belongs to the field of ship propulsion. Comprising a shell, and a driving mechanism is arranged in the shell; a water cooling mechanism is embedded in the lower surface of the shell; a propelling mechanism is arranged on the right side of the shell; a guide mechanism is arranged at the position, located above the driving mechanism, in the shell; the driving mechanism comprises a shaft rod, the upper surface of the shaft rod is fixedly connected with a connecting rod, and two movable grooves are formed in the upper surface of the connecting rod; in the extending or shortening process of the electric push rod, one of the two motors is located on the left and the other is located on the right, and the propelling mechanism is controlled to be started and the ship is controlled to be propelled by controlling the motor on the right to be started; by means of the mode, the electric push rod only needs to contract and is matched with two motors for alternate use, and the problem that in the prior art, the motors are prone to being damaged in the long-term operation state due to single-motor driving propelling can be solved.
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Description

Technical Field

[0001] The present invention relates to the field of ship propulsion, and in particular to a propulsion device for a ship. Background Art

[0002] A ship is a means of transport that can sail or anchor in water for transportation or operations. It has different technical performance, equipment, and structural types according to different usage requirements. Its interior mainly includes storage space, support structures, and drainage structures. It has a propulsion system that uses external or internal energy. Its appearance is generally a streamlined envelope that helps overcome fluid resistance. With the advancement of science and technology, the materials used have been continuously updated. In the early days, it was natural materials such as wood, bamboo, and hemp. In modern times, it is mostly steel, aluminum, fiberglass, acrylic, and various composite materials.

[0003] Patent: CN211943692U discloses a small ship propulsion device, including a hull, a slide fixedly connected to the side of the hull, and a slide slidably connected to the slide, the side of the slide fixedly connected to the chassis, the front and back of the slide fixedly connected to screws, and the screws are movably sleeved inside the screws. The utility model changes the connection between the device and the hull into a snap-on connection, utilizes the snap-on effect of the snap-on hole on the slide and the snap-on button on the slide, and connects the slide to the slide, thereby connecting the propulsion device to the hull. During maintenance, it is only necessary to separate the snap-on hole and the snap-on button and remove the device for maintenance. This avoids the problem that the device and the hull are mostly connected as one piece, which is inconvenient to maintain. During maintenance, workers need to dive into the water for maintenance, which consumes a lot of energy, makes maintenance difficult, and wastes labor. It facilitates maintenance of the device while saving labor.

[0004] The above technology is driven by a motor. After long-term use, the motor is easily damaged, and liquid is pumped out by a water pump to cool the motor. Since the water pump is easily affected by temperature during long-term operation, and the water pump requires an additional power source to drive it, consuming electricity, resulting in an increase in overall cost, improvements are needed. For this reason, we propose a propulsion device for ships. Summary of the Invention

[0005] Purpose of the invention: The purpose of the present invention is to provide a method for using two motors alternately to avoid the problem of a single motor being easily damaged during long-term use; another purpose of the present invention is to provide a method for cooling water without the need for a water pump.

[0006] Technical solution: A propulsion device for a ship, comprising a housing, wherein a driving mechanism is provided inside the housing; a water cooling mechanism is embedded in the lower surface of the housing;

[0007] A propulsion mechanism is provided on the right side of the housing;

[0008] A guide mechanism is provided inside the housing above the driving mechanism;

[0009] The driving mechanism includes a shaft rod, the upper surface of the shaft rod is fixedly connected to a connecting rod, the upper surface of the connecting rod is provided with two movable grooves, the interior of the movable groove is fixedly connected to a movable rod, the outer side wall of the movable rod is slidably connected to a movable block, the upper surface of the movable block is fixedly connected to a shaft column, the outer side wall of the shaft column is rotatably connected to a connecting block via a rotating shaft, the right end of the connecting block is fixedly connected to a motor, and the outer side wall of the shaft rod is fixedly connected to gear 1;

[0010] An electric push rod is fixedly connected to the left side of the interior of the housing, and a rack is fixedly connected to the right end of the output end of the electric push rod, and the front surface of the rack is meshed with the outer wall of the gear 1;

[0011] The bottom end of the shaft is rotatably connected to the inner lower surface of the shell through a rotating shaft.

[0012] Furthermore, the water cooling mechanism includes a water inlet, which is embedded in the bottom of the shell, and the upper surface of the water inlet is fixedly connected to two water inlet hoses. The top end of the water inlet hose is located on the outer wall of the motor and is fixedly connected to a spiral condenser. The output end of the spiral condenser is fixedly connected to a drain hose, and the bottom end of the drain hose passes through the bottom of the shell.

[0013] Furthermore, a filter screen is installed on the left side of the water inlet by disassembling bolts.

[0014] Furthermore, the propulsion mechanism includes a rotating rod 1, the left end of which is rotatably connected to the right side of the shell through a rotating shaft, the right end of the rotating rod 1 is fixedly connected to impeller 1, the left end of the rotating rod 1 passes through the interior of the shell and is fixedly connected to gear 2, impeller 2 is provided in front of and behind impeller 1, the left side of impeller 2 is fixedly connected to rotating rod 2, the left end of the rotating rod 2 passes through the interior of the shell and is fixedly connected to gear 3, the gear 2 is meshed with the gear 3, and the shell and the rotating rod 2 are rotatably connected through a rotating shaft.

[0015] Furthermore, a plug connector is fixedly connected to the left side of the gear 2, and a plug block is fixedly connected to the right end of the output shaft of the motor, and the plug connector is adapted to the plug block.

[0016] Furthermore, a protective net is installed on the right side of the housing outside the impeller 1 and the two impellers 2 by disassembling bolts.

[0017] Furthermore, a cover plate is installed on the front surface of the shell by means of bolts.

[0018] Furthermore, the guide mechanism includes a guide rod, and there are two guide rods. Both ends of the guide rod are fixedly connected to a fixed block, the top of the fixed block is fixedly connected to the inner upper surface of the shell, the outer side wall of the guide rod is slidably connected to a moving block, the bottom of the moving block is fixedly connected to a mounting plate, and the opposite sides of the two mounting plates opposite to each other on the left and right are fixedly connected to the two sides of the motor.

[0019] Beneficial effect: When the electric push rod is extended or shortened, one of the two motors will be on the left and the other on the right. By controlling the start of the motor on the right, the propulsion mechanism is started and the ship is propelled. This method only requires the electric push rod to be retracted and the two motors to be used alternately, which can avoid the problem of single motor driving propulsion in the existing technology, which is easy to cause motor damage under long-term operation.

[0020] During the movement of the ship, water will enter from the water inlet opening and flow into the spiral condenser through the water inlet hose. After circulating inside the spiral condenser, it will be discharged to the outside through the drain hose, thereby cooling the surface of the motor. This method allows water to automatically enter the spiral condenser to achieve cooling circulation during the movement of the ship. No water pump drive is required, which saves power output and manufacturing costs. The filter screen provided can filter the water entering the water inlet to avoid the problem of pipe blockage affecting the condensation effect.

[0021] Driven by the electric push rod, the plug-in block at the right end of the motor output shaft moving to the right can be plugged into the corresponding plug-in connector, so that through gear two and two gear threes, the two impellers two and the single impeller one can be controlled to rotate at the same time, thereby controlling the propulsion and movement of the ship. This method can control the simultaneous rotation and propulsion of impeller one and two impellers two through a single motor, thereby enhancing the propulsion effect and making the ship propulsion efficiency higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic structural diagram of the present invention without the cover plate and the protective net;

[0024] Figure 3 It is a structural schematic diagram of the driving mechanism of the present invention;

[0025] Figure 4 1 is a schematic diagram of the top view of the connecting rod of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the water cooling mechanism of the present invention;

[0027] Figure 6is a side structural schematic diagram of the propulsion mechanism of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the guide mechanism of the present invention.

[0029] In the figure: 1. shell; 2. driving mechanism; 3. water cooling mechanism; 4. propulsion mechanism; 5. guide mechanism; 6. plug connector; 7. plug block; 8. protective net; 9. cover plate; 201. shaft; 202. connecting rod; 203. movable groove; 204. movable rod; 205. movable block; 206. shaft column; 207. connecting block; 208. motor; 209. gear 1; 210. electric push rod; 211. rack; 301. water inlet; 302. water inlet hose; 303. spiral condenser; 304. drain hose; 305. filter; 401. rotating rod 1; 402. impeller 1; 403. gear 2; 404. impeller 2; 405. rotating rod 2; 406. gear 3; 501. guide rod; 502. fixed block; 503. movable block; 504. mounting plate. DETAILED DESCRIPTION

[0030] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Example

[0032] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 7 As shown, a propulsion device for a ship is provided, comprising a housing 1, wherein a driving mechanism 2 is provided inside the housing 1;

[0033] The driving mechanism 2 includes a shaft 201, the upper surface of which is fixedly connected to a connecting rod 202. Two movable grooves 203 are formed on the upper surface of the connecting rod 202. A movable rod 204 is fixedly connected to the interior of the movable groove 203. A movable block 205 is slidably connected to the outer wall of the movable rod 204. The upper surface of the movable block 205 is fixedly connected to a shaft column 206. The outer wall of the shaft column 206 is rotatably connected to a connecting block 207 via a rotating shaft. The right end of the connecting block 207 is fixedly connected to a motor 208. The outer wall of the shaft 201 is fixedly connected to a gear 1 209.

[0034] An electric push rod 210 is fixedly connected to the left side of the interior of the housing 1, and a rack 211 is fixedly connected to the right end of the output end of the electric push rod 210. The front surface of the rack 211 is meshed with the outer wall of the gear 1 209;

[0035] The bottom end of the shaft 201 is rotatably connected to the inner lower surface of the housing 1 via a rotating shaft;

[0036] A guide mechanism 5 is provided inside the housing 1 above the driving mechanism 2;

[0037] The guide mechanism 5 includes two guide rods 501, each of which is fixedly connected to a fixed block 502 at both ends. The top of the fixed block 502 is fixedly connected to the inner upper surface of the housing 1. The outer wall of the guide rod 501 is slidably connected to a moving block 503. The bottom of the moving block 503 is fixedly connected to a mounting plate 504. The opposite sides of the two mounting plates 504 are fixedly connected to the two sides of the motor 208.

[0038] When the device is in use, the two motors 208 can be intelligently controlled by an external intelligent controller to be turned on alternately, and the electric push rod 210 can be controlled to extend or retract. During the extension or retraction of the electric push rod 210, the rack 211 will be driven to move left or right, thereby toggling the gear 1 209 to rotate forward or reverse, so that the shaft 201 can rotate, thereby driving the connecting rod 202 to move, and adjusting the tilt state of the connecting rod 202 in the horizontal state. During the movement of the connecting rod 202, the two movable blocks 205 will slide inside the movable groove 203 along the outer wall of the movable rod 204. In this way, during the process of adjusting the horizontal tilt of the connecting rod 202, since the motor 208 is limited by the guide rod 501 and can only move left or right, the two motors 208 can be controlled to move one to the left and the other to the right by controlling the horizontal swing of the connecting rod 202.

[0039] Through this operation, when the electric push rod 210 is extended or shortened, one of the two motors 208 is on the left and the other is on the right. By controlling the motor 208 on the right to start, the propulsion mechanism 4 is started to control the propulsion of the ship;

[0040] This method only requires the electric push rod 210 to be retracted and the two motors 208 to be used alternately, which can avoid the problem in the prior art that a single motor 208 drives the propulsion and easily causes damage to the motor 208 during long-term operation.

[0041] like Figure 5 As shown, a water cooling mechanism 3 is embedded in the lower surface of the housing 1;

[0042] The water cooling mechanism 3 includes a water inlet 301, which is embedded in the bottom of the housing 1. The upper surface of the water inlet 301 is fixedly connected to two water inlet hoses 302. The top ends of the water inlet hoses 302 are located on the outer wall of the motor 208 and are fixedly connected to a spiral condenser tube 303. The output end of the spiral condenser tube 303 is fixedly connected to a drain hose 304. The bottom end of the drain hose 304 extends to the bottom of the housing 1.

[0043] A filter screen 305 is installed on the left side of the water inlet 301 by disassembling bolts;

[0044] During the movement of the ship, water will enter from the opening of the water inlet 301 and flow into the spiral condenser 303 through the water inlet hose 302. After circulating inside the spiral condenser 303, it will be discharged to the outside through the drain hose 304, thereby cooling the surface of the motor 208. This method allows water to automatically enter the spiral condenser 303 to realize cooling circulation during the movement of the ship, and does not require a water pump to drive it, saving power output and manufacturing costs. The filter net 305 set up can filter the water entering the water inlet 301 to avoid the problem of pipe blockage affecting the condensation effect.

[0045] like Figure 6 As shown, a propulsion mechanism 4 is provided on the right side of the housing 1;

[0046] The propulsion mechanism 4 includes a rotating rod 1 401, the left end of which is rotatably connected to the right side of the housing 1 via a rotating shaft, the right end of the rotating rod 1 401 is fixedly connected to an impeller 1 402, the left end of the rotating rod 1 401 extends into the interior of the housing 1 and is fixedly connected to a gear 2 403, impeller 1 402 is provided with an impeller 2 404 in front and rear, the left side of the impeller 2 404 is fixedly connected to a rotating rod 2 405, the left end of the rotating rod 2 405 extends into the interior of the housing 1 and is fixedly connected to a gear 3 406, the gear 2 403 is meshed with the gear 3 406, and the housing 1 and the rotating rod 2 405 are rotatably connected via the rotating shaft;

[0047] The left side of the gear 2 403 is fixedly connected with a plug connector 6, and the right end of the output shaft of the motor 208 is fixedly connected with a plug block 7, and the plug connector 6 is adapted to the plug block 7;

[0048] Driven by the electric push rod 210, the plug-in block 7 at the right end of the output shaft of the motor 208 moving to the right can be plugged into the corresponding plug connector 6, so that through the gear 2 403 and the two gears 3 406, the two impellers 2 404 and the single impeller 1 402 can be controlled to rotate at the same time, thereby controlling the propulsion and movement of the ship. This method can control the impeller 1 402 and the two impellers 2 404 to rotate and propel at the same time through a single motor 208, thereby enhancing the propulsion effect and making the ship propulsion efficiency higher.

[0049] like Figure 1 As shown, a protective net 8 is installed on the right side of the housing 1 outside the impeller 1 402 and the two impellers 2 404 by disassembling bolts;

[0050] The protective net 8 is used to shield and protect the impeller 1 402 and the impeller 2 404.

[0051] like Figure 1 As shown, a cover plate 9 is installed on the front surface of the housing 1 by disassembly of bolts;

[0052] The cover plate 9 can be easily disassembled and opened, thereby facilitating maintenance work inside the housing 1 .

[0053] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A propulsion device for a ship, comprising a housing (1), characterized in that: A driving mechanism (2) is provided inside the housing (1); A water cooling mechanism (3) is embedded and installed on the lower surface of the housing (1); A propulsion mechanism (4) is provided on the right side of the housing (1); A guide mechanism (5) is provided inside the housing (1) above the driving mechanism (2); The driving mechanism (2) includes a shaft (201), the upper surface of the shaft (201) is fixedly connected to a connecting rod (202), the upper surface of the connecting rod (202) is provided with two movable grooves (203), the interior of the movable groove (203) is fixedly connected to a movable rod (204), the outer wall of the movable rod (204) is slidably connected to a movable block (205), the upper surface of the movable block (205) is fixedly connected to a shaft column (206), the outer wall of the shaft column (206) is rotatably connected to a connecting block (207) via a rotating shaft, the right end of the connecting block (207) is fixedly connected to a motor (208), and the outer wall of the shaft (201) is fixedly connected to a gear 1 (209); An electric push rod (210) is fixedly connected to the left side of the interior of the housing (1), and a rack (211) is fixedly connected to the right end of the output end of the electric push rod (210), and the front surface of the rack (211) is meshed with the outer wall of the gear 1 (209); The bottom end of the shaft (201) is rotatably connected to the inner lower surface of the housing (1) via a rotating shaft.

2. A propulsion device for a ship according to claim 1, characterized in that: The water cooling mechanism (3) includes a water inlet (301), which is embedded in the bottom of the shell (1). The upper surface of the water inlet (301) is fixedly connected to two water inlet hoses (302). The top end of the water inlet hose (302) is located on the outer wall of the motor (208) and is fixedly connected to a spiral condenser (303). The output end of the spiral condenser (303) is fixedly connected to a drain hose (304), and the bottom end of the drain hose (304) passes through the bottom of the shell (1).

3. A propulsion device for a ship according to claim 1, characterized in that: A filter screen (305) is installed on the left side of the water inlet (301) by disassembling bolts.

4. A propulsion device for a ship according to claim 1, characterized in that: The propulsion mechanism (4) includes a rotating rod (401), the left end of the rotating rod (401) is rotatably connected to the right side of the housing (1) through a rotating shaft, the right end of the rotating rod (401) is fixedly connected to an impeller (402), the left end of the rotating rod (401) passes through the interior of the housing (1) and is fixedly connected to a gear (403), impellers (404) are provided in front of and behind the impeller (402), the left side of the impeller (404) is fixedly connected to a rotating rod (405), the left end of the rotating rod (405) passes through the interior of the housing (1) and is fixedly connected to a gear (406), the gear (403) is meshed with the gear (406), and the housing (1) and the rotating rod (405) are rotatably connected through a rotating shaft.

5. A propulsion device for a ship according to claim 4, characterized in that: The left side of the gear 2 (403) is fixedly connected with a plug connector (6), the right end of the output shaft of the motor (208) is fixedly connected with a plug block (7), and the plug connector (6) is adapted to the plug block (7).

6. A propulsion device for a ship according to claim 4, characterized in that: A protective net (8) is installed on the right side of the housing (1) outside the impeller 1 (402) and the two impeller 2 (404) by disassembling bolts.

7. A propulsion device for a ship according to claim 1, characterized in that: A cover plate (9) is detachably mounted on the front surface of the housing (1) via bolts.

8. The propulsion device for a ship according to claim 1, characterized in that: The guide mechanism (5) includes a guide rod (501), the number of the guide rods (501) is two, both ends of the guide rod (501) are fixedly connected to a fixed block (502), the top of the fixed block (502) is fixedly connected to the inner upper surface of the shell (1), the outer wall of the guide rod (501) is slidably connected to a moving block (503), the bottom of the moving block (503) is fixedly connected to a mounting plate (504), and the opposite sides of the two mounting plates (504) opposite to each other are fixedly connected to the two sides of the motor (208).

Citation Information

Patent Citations

  • Small ship propulsion device

    CN211943692U

Cited By

  • Ship propulsion device

    CN121626388A