Water jet propeller impeller blade edge structure with wear-resistant coating

Abstract

The utility model discloses a kind of water-jet propeller impeller blade edge structure with wear-resistant coating, including transmission rod and impeller body, the impeller body is sleeved on the outer surface of transmission rod, the blade edge of the impeller body is fixedly installed with outer frame, the outer surface of the outer frame is provided with front pipe body, the outer surface of the outer frame is fixedly installed with limit ring, the outer surface of the outer frame and limit ring is fixedly installed with wear-resistant coating. The utility model, by being cooperated with the components such as impeller body, outer frame, front pipe body, rear pipe body, limit ring, sliding block and fixing bolt, the function of protecting impeller blade is realized, the blade edge of impeller body is protected by outer frame structure, the blade edge of impeller body is prevented from directly contacting with the inner wall of the pipeline of water-jet propeller, so as to slow down the abrasion speed of impeller blade, prevent deformation and damage of impeller blade, ensure the normal use of water-jet propeller, prolong the service life of water-jet propeller impeller.

Description

Technical Field

[0001] This utility model relates to the field of waterjet propulsion impeller technology, and in particular to an edge structure of waterjet propulsion impeller blades with a wear-resistant coating. Background Technology

[0002] A waterjet propulsion system is a type of propulsion system in which the jetting part of the propulsion mechanism is immersed in water and uses the reaction force generated by the jetting water to propel the ship forward. It consists of a water pump, pipes, suction port, and nozzle, and can change the direction of the water jet through the nozzle to achieve ship maneuvering. It is less efficient than a propeller, but has good maneuverability. In particular, waterjet propulsion systems are well adapted to shallow waterways with muddy or sandy bottoms.

[0003] In existing technologies, water jet propulsion systems all have impellers installed inside via a drive motor. However, the impeller structure of traditional water jet propulsion systems is simple, and most of its blades are designed independently. This arrangement makes it easy for the edges of the impeller blades to come into contact with the inner wall of the water jet propulsion pipe, resulting in rapid wear of the impeller blades, and even deformation and damage to the impeller blades. This affects the normal use of the water jet propulsion system and shortens the service life of the water jet propulsion impeller. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a waterjet propeller blade edge structure with a wear-resistant coating.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a water jet propeller blade edge structure with a wear-resistant coating, comprising a transmission rod and an impeller body, wherein the impeller body is sleeved on the outer surface of the transmission rod, an outer frame is fixedly installed on the blade edge of the impeller body, a front tube is provided on the outer surface of the outer frame, a rear tube is provided at the rear end of the front tube, a limit ring is fixedly installed on the outer surface of the outer frame, and a wear-resistant coating is fixedly installed on the outer surfaces of both the outer frame and the limit ring, a connecting pipe is fixedly installed at the front end of the rear tube, a connecting block is fixedly installed on the outer surface of the rear end of the front tube, a connecting frame is fixedly installed on the outer surface of the front end of the rear tube, a slider is fixedly installed on the inner wall of the connecting frame, a fixing bolt is threadedly connected to the outer wall of the connecting frame, and a fixing component is provided on the outer surface of the transmission rod.

[0006] As a further description of the above technical solution: a groove is provided on the inner wall of the rear end of the front tube body, the limiting ring is slidably connected to the inner wall of the groove, and the connecting pipe is inserted into the groove. By setting the above components, the function of connecting the rear tube body and the front tube body is realized.

[0007] As a further description of the above technical solution: a sealing sleeve is provided on the outer surface of the connecting pipe, the circular outer wall of the sealing sleeve is in close contact with the inner wall of the groove, and the two side walls of the sealing sleeve are respectively in contact with the side wall of the connecting block and the inner wall of the connecting frame. By setting the above components, the function of sealing the connection between the front pipe and the rear pipe is realized.

[0008] As a further description of the above technical solution: the circular outer wall of the connecting block is provided with a sliding groove that matches the slider, and the fixing bolt passes through the outer wall of the connecting frame and is inserted into the outer wall of the connecting block. By setting the above components, the function of fixing the connecting frame to the outside of the connecting block is realized.

[0009] As a further description of the above technical solution: the fixing component includes a fixing plate, which is fixedly installed on the outer surface of the transmission rod at the rear end of the impeller body. The outer surface of the transmission rod is provided with a positioning groove, and a fixing sleeve is fitted on the outer surface of the transmission rod at the front end of the impeller body. Positioning blocks that are slidably connected to the positioning groove are fixedly installed on the inner walls of both the impeller body and the fixing sleeve. The outer wall of the fixing sleeve is threaded with mounting bolts. By setting the fixing component, the function of quickly fixing the impeller to the transmission rod is realized.

[0010] As a further description of the above technical solution: a driving block is fixedly installed on the side wall of the fixed plate near the impeller body, and a connecting groove for inserting the driving block is opened on the side wall of the impeller body near the fixed plate. By setting the above components, the function of connecting the fixed plate and the impeller body is realized.

[0011] As a further description of the above technical solution: the mounting bolt penetrates the outer wall of the fixing sleeve, and the mounting bolt is inserted into the outer surface of the transmission rod. By setting the above components, the function of fixing the fixing sleeve is realized.

[0012] This utility model has the following beneficial effects:

[0013] 1. Compared with existing technologies, the edge structure of the impeller blades of this waterjet propeller with wear-resistant coating, through the cooperation of components such as transmission rod, impeller body, outer frame, front tube body, rear tube body, groove, limit ring, connecting pipe, sealing sleeve, connecting block, connecting frame, slider and fixing bolt, achieves the function of protecting the impeller blades. The outer frame structure protects the edge of the impeller blades, preventing the blade edge of the impeller body from directly contacting the inner wall of the waterjet propeller pipe, thereby slowing down the wear rate of the impeller blades, preventing the impeller blades from deforming and being damaged, ensuring the normal use of the waterjet propeller, and extending the service life of the waterjet propeller impeller.

[0014] 2. Compared with the prior art, the edge structure of the impeller blades of the water jet propulsion device with wear-resistant coating, through the cooperation of components such as fixing plate, drive block, positioning groove, fixing sleeve, positioning block and mounting bolt, realizes the function of quickly fixing the impeller body to the drive rod, improves the fixing method of the impeller body in the prior art, makes fixing the impeller body more convenient, significantly improves assembly efficiency, and enhances the convenience of the water jet propulsion device impeller. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the edge structure of a water jet propulsion impeller blade with a wear-resistant coating proposed in this utility model.

[0016] Figure 2 A schematic diagram of the impeller body structure of a water jet propulsion impeller with wear-resistant coating edge structure proposed in this utility model;

[0017] Figure 3 A schematic diagram of the connecting frame structure for the edge structure of the impeller blade of a water jet propulsion device with a wear-resistant coating, as proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the groove structure of the edge structure of a water jet propulsion impeller blade with a wear-resistant coating proposed in this utility model.

[0019] Figure 5 A schematic diagram of the fixing component structure of the impeller blade edge structure of a water jet propulsion device with a wear-resistant coating proposed in this utility model;

[0020] Figure 6 This invention presents a schematic diagram of a fixing plate structure for the edge structure of a water jet propulsion impeller blade with a wear-resistant coating.

[0021] Legend:

[0022] 1. Drive rod; 2. Impeller body; 3. Outer frame; 4. Front tube; 5. Rear tube; 6. Groove; 7. Limiting ring; 8. Connecting pipe; 9. Sealing sleeve; 10. Connecting block; 11. Connecting frame; 12. Slider; 13. Fixing bolt; 14. Fixing plate; 15. Drive block; 16. Positioning groove; 17. Fixing sleeve; 18. Positioning block; 19. Mounting bolt. Detailed Implementation

[0023] 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.

[0024] Reference Figures 1 to 6 This utility model provides a water jet propeller blade edge structure with wear-resistant coating: including a transmission rod 1 and an impeller body 2. The impeller body 2 is sleeved on the outer surface of the transmission rod 1. An outer frame 3 is fixedly installed on the blade edge of the impeller body 2. A front tube 4 is provided on the outer surface of the outer frame 3. A rear tube 5 is provided at the rear end of the front tube 4. A groove 6 is opened on the inner wall of the rear end of the front tube 4. A limiting ring 7 is fixedly installed on the outer surface of the outer frame 3. The limiting ring 7 is slidably connected to the inner wall of the groove 6. A connecting pipe 8 is inserted into the groove 6. Wear-resistant coatings are fixedly installed on the outer surfaces of the outer frame 3 and the limiting ring 7. A connecting pipe 8 is fixedly installed at the front end of the rear tube 5. A sealing sleeve 9 is sleeved on the outer surface of the connecting pipe 8. The circular outer wall of the sealing sleeve 9 is tightly attached to the inner wall of the groove 6.

[0025] To facilitate the connection and fixation of the front tube 4 and the rear tube 5, a connecting block 10 is fixedly installed on the outer surface of the rear end of the front tube 4, and a connecting frame 11 is fixedly installed on the outer surface of the front end of the rear tube 5. The two side walls of the sealing sleeve 9 are respectively attached to the side wall of the connecting block 10 and the inner wall of the connecting frame 11. A slider 12 is fixedly installed on the inner wall of the connecting frame 11. A groove adapted to the slider 12 is opened on the circular outer wall of the connecting block 10. A fixing bolt 13 is threadedly connected to the outer wall of the connecting frame 11. The fixing bolt 13 passes through the outer wall of the connecting frame 11 and is inserted into the outer wall of the connecting block 10.

[0026] By setting up a transmission rod 1, impeller body 2, outer frame 3, front tube body 4, rear tube body 5, groove 6, limit ring 7, connecting pipe 8, sealing sleeve 9, connecting block 10, connecting frame 11, slider 12, and fixing bolt 13, the impeller blades are protected. By using the outer frame 3 to protect the blade edges of the impeller body 2, the blade edges of the impeller body 2 are prevented from directly contacting the inner wall of the water jet propulsion pipe, thereby slowing down the wear rate of the impeller blades, preventing deformation and damage to the impeller blades, ensuring the normal use of the water jet propulsion, and extending the service life of the water jet propulsion impeller.

[0027] A fixing assembly is provided on the outer surface of the transmission rod 1. The fixing assembly includes a fixing plate 14, which is fixedly installed on the outer surface of the transmission rod 1 at the rear end of the impeller body 2. A driving block 15 is fixedly installed on the side wall of the fixing plate 14 near the impeller body 2. A connecting groove for inserting the driving block 15 is opened on the side wall of the impeller body 2 near the fixing plate 14. A positioning groove 16 is opened on the outer surface of the transmission rod 1. A fixing sleeve 17 is sleeved on the outer surface of the transmission rod 1 at the front end of the impeller body 2. Positioning blocks 18 that are slidably connected to the positioning groove 16 are fixedly installed on the inner walls of both the impeller body 2 and the fixing sleeve 17. A mounting bolt 19 is threadedly connected to the outer wall of the fixing sleeve 17. The mounting bolt 19 penetrates the outer wall of the fixing sleeve 17 and is inserted into the outer surface of the transmission rod 1.

[0028] By setting up a fixing plate 14, a drive block 15, a positioning groove 16, a fixing sleeve 17, a positioning block 18, and mounting bolts 19, the function of quickly fixing the impeller body 2 to the transmission rod 1 is realized, which improves the fixing method of the impeller body 2 in the prior art, making it more convenient to fix the impeller body 2, significantly improving assembly efficiency, and enhancing the convenience of the water jet propulsion impeller.

[0029] Working principle: When installing the impeller of the water jet propulsion device, the drive rod 1 is located inside the rear tube 5. First, bring the impeller body 2 close to the drive rod 1 so that the positioning block 18 inside the impeller body 2 aligns with the positioning groove 16. Move the impeller body 2 to fit it onto the outside of the drive rod 1, so that the impeller body 2 slides along the outer surface of the drive rod 1. The positioning block 18 on the impeller body 2 slides inside the positioning groove 16. When the rear end of the impeller body 2 contacts the fixing plate 14, it drives the block 15 to insert into the connecting groove. Next, the fixing sleeve 17 is fitted onto the transmission rod 1. The positioning block 18 inside the fixing sleeve 17 slides inside the positioning groove 16. The fixing sleeve 17 is moved closer to the impeller body 2 along the outer surface of the transmission rod 1. When the fixing sleeve 17 contacts the front end of the impeller body 2, the mounting bolt 19 on the outer wall of the fixing sleeve 17 is turned. After the mounting bolt 19 penetrates the outer wall of the fixing sleeve 17 and rotates into the interior of the transmission rod 1, the fixing sleeve 17 is fixed, thereby fixing the impeller body 2 and completing the installation of the impeller body 2.

[0030] Next, the sealing sleeve 9 is fitted onto the outer surface of the connecting pipe 8, and the front pipe body 4 is brought close to the rear pipe body 5 so that the limiting ring 7 and the connecting pipe 8 are aligned with the groove 6, the connecting block 10 is aligned with the connecting frame 11, and the slider 12 is aligned with the slide groove. The front pipe body 4 is moved so that the impeller body 2 is inserted into the interior of the front pipe body 4, the limiting ring 7 slides along the inner wall of the groove 6, and the connecting pipe 8 is inserted into the interior of the groove 6. The sealing sleeve 9 is in close contact with the inner wall of the groove 6. Then the connecting block 10 slides into the interior of the connecting frame 11, and the slider 12 slides in the interior of the slide groove. When the connecting block 10 slides into the interior of the connecting frame 11, the limiting ring 7 slides to the end of the groove 6, and the outer frame 3 is in contact with the inner wall of the front pipe body 4. Then the fixing bolt 13 is turned so that the fixing bolt 13 passes through the outer wall of the connecting frame 11 and rotates into the interior of the connecting block 10, thereby fixing the connecting block 10 and fixing the front pipe body 4, thus completing the installation of the water jet propulsion impeller.

[0031] During the use of the water jet propulsion device, the transmission rod 1 drives the impeller body 2 to rotate, causing the outer frame 3 to rotate against the inner wall of the front tube 4. The limiting ring 7 rotates inside the groove 6, which protects the impeller blades on the one hand and improves the stability of the impeller body 2 rotation on the other. During the rotation of the impeller body 2, the water source is pushed from the rear tube 5 to the front tube 4.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterjet propeller blade edge structure with a wear-resistant coating, comprising a drive rod (1) and an impeller body (2), characterized in that: The impeller body (2) is sleeved on the outer surface of the transmission rod (1). An outer frame (3) is fixedly installed on the blade edge of the impeller body (2). A front tube (4) is provided on the outer surface of the outer frame (3). A rear tube (5) is provided at the rear end of the front tube (4). A limit ring (7) is fixedly installed on the outer surface of the outer frame (3). A wear-resistant coating is fixedly installed on the outer surfaces of both the outer frame (3) and the limit ring (7). A connecting pipe (8) is fixedly installed at the front end of the rear tube (5). A connecting block (10) is fixedly installed on the outer surface of the rear end of the front tube (4). A connecting frame (11) is fixedly installed on the outer surface of the front end of the rear tube (5). A slider (12) is fixedly installed on the inner wall of the connecting frame (11). A fixing bolt (13) is threadedly connected to the outer wall of the connecting frame (11). A fixing component is provided on the outer surface of the transmission rod (1).

2. The edge structure of a waterjet propeller blade with a wear-resistant coating according to claim 1, characterized in that: The rear end inner wall of the front tube (4) is provided with a groove (6), the limiting ring (7) is slidably connected to the inner wall of the groove (6), and the connecting tube (8) is inserted into the groove (6).

3. The edge structure of a waterjet propeller blade with a wear-resistant coating according to claim 1, characterized in that: The outer surface of the connecting pipe (8) is fitted with a sealing sleeve (9). The circular outer wall of the sealing sleeve (9) is in close contact with the inner wall of the groove (6). The two side walls of the sealing sleeve (9) are respectively in contact with the side wall of the connecting block (10) and the inner wall of the connecting frame (11).

4. The edge structure of a waterjet propeller blade with a wear-resistant coating according to claim 1, characterized in that: The outer circular wall of the connecting block (10) is provided with a groove that matches the slider (12), and the fixing bolt (13) passes through the outer wall of the connecting frame (11) and is inserted into the outer wall of the connecting block (10).

5. The edge structure of a waterjet propeller blade with a wear-resistant coating according to claim 1, characterized in that: The fixing assembly includes a fixing plate (14), which is fixedly installed on the outer surface of the transmission rod (1) at the rear end of the impeller body (2). The outer surface of the transmission rod (1) is provided with a positioning groove (16). The outer surface of the transmission rod (1) at the front end of the impeller body (2) is fitted with a fixing sleeve (17). The inner walls of the impeller body (2) and the fixing sleeve (17) are both fixedly installed with positioning blocks (18) that are slidably connected to the positioning groove (16). The outer wall of the fixing sleeve (17) is threaded with mounting bolts (19).

6. The edge structure of a waterjet propeller blade with a wear-resistant coating according to claim 5, characterized in that: The fixed plate (14) has a drive block (15) fixedly installed on the side wall near the impeller body (2), and the side wall near the fixed plate (14) of the impeller body (2) has a connecting groove for insertion into the drive block (15).

7. The edge structure of a waterjet propeller blade with a wear-resistant coating according to claim 5, characterized in that: The mounting bolt (19) penetrates the outer wall of the fixing sleeve (17) and is inserted into the outer surface of the transmission rod (1).

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