A high pressure water jet propeller

Abstract

The utility model provides a kind of high-pressure water jet propeller, including motor, propeller main body and mounting bracket, the motor is arranged in propeller main body front end, the output of the motor is provided with impeller assembly and is inserted into propeller main body, the mounting bracket is provided with steering lever, the steering lever one end is fixedly connected with propeller main body, the other end is provided with fixing piece, the fixing piece is used to install steering lever on mounting bracket, the steering lever is rotatably connected with mounting bracket, by the rotatable connection mode of steering lever and mounting bracket, so that the high-pressure water jet propeller can reduce kinetic energy loss when reversing, improves the reversing efficiency.

Description

Technical Field

[0001] This utility model relates to propulsion devices, and more particularly, to a high-pressure water jet propulsion device. Background Technology

[0002] Currently, Chinese patent CN209241292U discloses a water jet propulsion device, including a water jet chamber with a water inlet at the bottom. A water pump for pressurizing the water entering the chamber is located within the chamber. A nozzle connected to the water pump outlet is located at the rear of the chamber. A steering pipe capable of swinging left and right around the nozzle is connected to the nozzle. A reverse guide is hinged to the steering pipe. The reverse guide includes a rearward-protruding curved panel and two side plates located at the left and right ends of the curved panel. The opening of the reverse guide faces the nozzle. The curved panel and the two side plates together form a guide chamber. A diversion protrusion is located at the lower end of the curved panel, dividing the lower end of the guide chamber into two outlets arranged in a V-shape. This effectively prevents reflected water from flowing back to the inlet, providing sufficient reversing power for the water jet propulsion device.

[0003] The aforementioned patent still has shortcomings. The water jet propulsion device achieves the reversing function of the ship through the reverse gear guide, but achieving the reversing function through the guide will result in the loss of some kinetic energy and the reversing efficiency is low. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a high-pressure water jet propulsion device with high reversing efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a high-pressure water jet propulsion device, including a motor, a propulsion body and a mounting frame. The motor is located at the front end of the propulsion body, and an impeller assembly is provided at the output end of the motor and extends into the propulsion body. A steering rod is provided in the mounting frame. One end of the steering rod is fixedly connected to the propulsion body, and the other end is provided with a fixing member. The fixing member is used to install the steering rod on the mounting frame, and the steering rod is rotatably connected to the mounting frame.

[0006] Preferably, the fixing component includes a conical block, the mounting bracket has a conical groove at the top, the conical block is rotatably disposed in the conical groove, the top and bottom of the conical block are respectively provided with fixing holes and positioning holes, the top of the steering rod is inserted into the positioning hole, a bolt is provided in the fixing hole, and the conical block and the steering rod are fixed by bolts.

[0007] Preferably, the steering rod is further provided with a groove, one end of which is connected to a fixing hole, and the other end is located at the side end of the bottom of the steering rod.

[0008] Preferably, the propeller body includes a housing and a filter screen cover, the housing and the filter screen cover are fixed together by bolts, and the motor is fixedly mounted on the filter screen cover.

[0009] Preferably, the propeller body further includes a reinforcing bracket and a reinforcing ring. The reinforcing ring is fixedly disposed on the outside of the housing. One end of the reinforcing bracket is fixed to the motor, and the other end is fixed to the reinforcing ring. The reinforcing brackets are arranged in a ring.

[0010] Preferably, the impeller assembly includes an impeller one, an impeller two, and an induction ring, and the output shaft of the motor is provided with multiple stepped grooves, with the impeller one, the impeller two, and the induction ring respectively abutting against the corresponding stepped grooves.

[0011] Compared with the prior art, the beneficial effects of this utility model are: By using the rotating connection between the steering rod and the mounting bracket, the high-pressure water jet propulsion unit can reduce kinetic energy loss and improve reversing efficiency when reversing. The stable rotation of the steering rod on the mounting frame is achieved through the cooperation of the conical block and the conical groove, which effectively improves the structural stability of the propeller when it turns. By reinforcing the support frame and reinforcing ring, the structural strength of the entire thruster body is enhanced, making it more stable and less prone to damage when subjected to high-pressure water flow impact. By setting impeller one and impeller two, the water flow pressurization effect is improved, thereby improving the overall performance of the propeller and enhancing its anti-cavitation performance. Attached Figure Description

[0012] Figure 1 This is a cross-sectional schematic diagram of an embodiment; Figure 2 This is a side view of an embodiment.

[0013] Reference numerals in the attached drawings: 1. Motor; 2. Propeller body; 3. Mounting bracket; 4. Steering rod; 5. Fixing component; 6. Conical block; 7. Conical groove; 8. Fixing hole; 9. Positioning hole; 10. Cable groove; 11. Housing; 12. Filter screen cover; 13. Reinforcing ring; 14. Reinforcing bracket; 15. Impeller 1; 16. Impeller 2; 17. Induction ring. Detailed Implementation

[0014] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0015] A high-pressure water jet propulsion device includes a motor 1, a propulsion body 2, and a mounting frame 3. The motor 1 is located at the front end of the propulsion body 2. An impeller assembly is provided at the output end of the motor 1 and extends into the propulsion body 2. A steering rod 4 is provided in the mounting frame 3. One end of the steering rod 4 is fixedly connected to the propulsion body 2, and the other end is provided with a fixing member 5. The fixing member 5 is used to install the steering rod 4 on the mounting frame 3. The steering rod 4 is rotatably connected to the mounting frame 3.

[0016] The fixing component 5 includes a conical block 6. The mounting bracket 3 has a conical groove 7 on its top. The conical block 6 is rotatably set in the conical groove 7. The conical fit structure not only allows the steering rod 4 to rotate flexibly, but also ensures the stability of rotation. A self-lubricating coating can be sprayed on the conical surface of the conical block 6 to reduce the friction of rotation. The top and bottom of the conical block 6 are respectively provided with fixing holes 8 and positioning holes 9. The top of the steering rod 4 is inserted into the positioning hole 9. A bolt is provided in the fixing hole 8. The conical block 6 and the steering rod 4 are fixed by bolts. A wire groove 10 is also provided in the steering rod 4. One end of the wire groove 10 is connected to the fixing hole 8, and the other end is set at the side end of the bottom of the steering rod 4.

[0017] The steering rod 4 is connected to the motor 1 inside the ship via a pin. When it is necessary to change the propulsion direction, since the steering rod 4 is rotatably connected to the mounting frame 3, the steering rod 4 can be rotated within the mounting frame 3 by operating the relevant control device, thereby driving the propeller body 2 to change direction and realize the ship's steering operation.

[0018] The propeller body 2 includes a housing 11 and a filter screen cover 12. The housing 11 and the filter screen cover 12 are fixed together by bolts. The motor 1 is fixedly mounted on the filter screen cover 12. The filter screen cover 12 can perform preliminary filtration of the water flow entering the propeller body 2, preventing larger impurities from entering the propeller and damaging components such as the impeller assembly, thus extending the service life of the propeller. The propeller body 2 also includes a reinforcing bracket 14 and a reinforcing ring 13. The reinforcing ring 13 is fixedly mounted on the outside of the housing 11. One end of the reinforcing bracket 14 is fixed to the motor 1, and the other end is fixed to the reinforcing ring 13. The reinforcing bracket 14 is arranged in a ring. The reinforcing bracket 14 effectively disperses the impact force of the high-pressure water flow on the propeller during operation, so that the propeller body 2 can remain stable under high pressure and is not easily deformed or damaged, thus ensuring the normal operation of the propeller.

[0019] The impeller assembly includes impeller one 15, impeller two 16 and induced ring 17. The output shaft of motor 1 is provided with multiple stepped grooves, and impeller one 15, impeller two 16 and induced ring 17 respectively abut against the corresponding stepped grooves.

[0020] In practical applications, the high-pressure water jet propulsion system operates as follows: When motor 1 starts, its output drives the impeller assembly to rotate at high speed. During rotation, impellers 15 and 16 pressurize the water flowing into the propulsion body 2, giving it greater kinetic energy. The induction ring 17 guides the water flow direction, optimizes the water flow state, further enhances the water pressurization effect, and strengthens the propulsion force and anti-cavitation performance of the propulsion system.

[0021] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A high pressure water jet propulsor characterized by: The device includes a motor (1), a propeller body (2), and a mounting frame (3). The motor (1) is located at the front end of the propeller body (2). An impeller assembly is provided at the output end of the motor (1) and extends into the propeller body (2). A steering rod (4) is provided inside the mounting frame (3). One end of the steering rod (4) is fixedly connected to the propeller body (2), and the other end is provided with a fixing member (5). The fixing member (5) is used to install the steering rod (4) on the mounting frame (3). The steering rod (4) is rotatably connected to the mounting frame (3).

2. A high-pressure water jet propulsion device according to claim 1, characterized in that: The fixing component (5) includes a conical block (6), the mounting bracket (3) has a conical groove (7) at the top, the conical block (6) is rotatably disposed in the conical groove (7), the top and bottom of the conical block (6) are respectively provided with a fixing hole (8) and a positioning hole (9), the top of the steering rod (4) is inserted into the positioning hole (9), a bolt is provided in the fixing hole (8), and the conical block (6) and the steering rod (4) are fixed by bolts.

3. A high-pressure water jet propulsion device according to claim 2, characterized in that: The steering rod (4) is also provided with a wire groove (10), one end of which is connected to the fixing hole (8), and the other end is located at the side end of the bottom of the steering rod (4).

4. A high-pressure water jet propulsion device according to claim 1, characterized in that: The main body (2) of the thruster includes a housing (11) and a filter cover (12). The housing (11) and the filter cover (12) are fixed together by bolts. The motor (1) is fixedly mounted on the filter cover (12).

5. A high-pressure water jet propulsion device according to claim 4, characterized in that: The main body (2) of the thruster also includes a reinforcing bracket (14) and a reinforcing ring (13). The reinforcing ring (13) is fixedly installed on the outside of the housing (11). One end of the reinforcing bracket (14) is fixed to the motor (1), and the other end is fixed to the reinforcing ring (13). The reinforcing bracket (14) is arranged in a ring.

6. A high-pressure water jet propulsion device according to claim 1, characterized in that: The impeller assembly includes impeller one (15), impeller two (16) and an induction ring (17). The output shaft of the motor (1) is provided with multiple stepped grooves, and impeller one (15), impeller two (16) and induction ring (17) respectively abut against the corresponding stepped grooves.

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