Propeller with anti-winding structure

Abstract

The utility model provides a kind of propeller with anti-winding structure, including inclined pipe, straight pipe, output shaft and impeller, the output shaft is inserted into inclined pipe and straight pipe, the impeller is fixedly arranged at output shaft top, it is fixedly connected between the inclined pipe and straight pipe, the inclined pipe side end is provided with water inlet, the straight pipe side end is provided with water outlet, flow channel cavity is formed in the inclined pipe and straight pipe, shell is also fixedly provided with shaft sleeve assembly, the output shaft is arranged in shaft sleeve assembly, the water inlet is also provided with screen and shearing assembly, the shearing assembly is used to shear sundries on screen, by being provided with screen at water inlet, sundries in water can be effectively intercepted, prevent its into propeller inside and cause winding and jam, the setting of shearing assembly can timely shear treatment to sundries on screen, further avoid the accumulation and winding of sundries, ensure the normal operation of propeller.

Description

Technical Field

[0001] This utility model relates to a propeller, and more particularly, to a propeller with an anti-entanglement structure. Background Technology

[0002] Currently, Chinese patent CN207241990U discloses a water jet propulsion device, including a water jet nozzle, a curved pipe, a propeller built into the curved pipe, a motor, and a water inlet. The free end of the curved pipe forms an outwardly flared water inlet, the pipe cross-section of which is parallel to the water surface. The pipe cross-section of the fixed end of the curved pipe is perpendicular to the water surface. The pipe diameter cross-section of the water jet nozzle is perpendicular to the water surface. The axis of the propeller built into the curved pipe is coaxial with the pipe diameter axis of the water jet nozzle. The motor drives the propeller to rotate.

[0003] The aforementioned patent still has shortcomings. It only uses an inlet grille to prevent foreign objects from entering the pipe, and its anti-entanglement ability is weak. In some complex waters, it cannot guarantee the stability of the ship's power system. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a propeller with an anti-entanglement structure, which has a strong anti-entanglement capability.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a propeller with an anti-entanglement structure, including an inclined tube, a straight tube, an output shaft, and an impeller. The output shaft extends into the inclined tube and the straight tube. The impeller is fixedly installed on the top of the output shaft. The inclined tube and the straight tube are fixedly connected. An inlet is provided at the side end of the inclined tube, and an outlet is provided at the side end of the straight tube. A flow channel cavity is formed inside the inclined tube and the straight tube. A bushing assembly is also fixedly installed inside the housing. The output shaft is installed inside the bushing assembly. A screen and a shearing assembly are also provided at the inlet. The shearing assembly is used to shear debris on the screen.

[0006] Preferably, the bushing assembly includes a first bushing, a second bushing, and a mounting bracket. The mounting bracket is fixedly disposed inside a straight pipe, the first bushing is fixedly disposed inside an inclined pipe, and the second bushing is sleeved on the output shaft and disposed between the first bushing and the mounting bracket.

[0007] Preferably, a self-lubricating pipe is also provided between the output shaft and the first and second sleeves.

[0008] Preferably, an anti-winding blade sleeve is also fitted on the output shaft. The anti-winding blade sleeve is disposed between the mounting bracket and the impeller. The outer side of the anti-winding blade sleeve is provided with multiple cutting protrusions in a circular array. The anti-winding blade sleeve rotates coaxially with the output shaft.

[0009] Preferably, the shearing assembly includes a shearing disc and a drive source. A central shaft is provided in the middle of the shearing disc. The central shaft rotates in conjunction with the center of the mesh. Shearing blades are provided at both ends of the central shaft. When the drive source drives the shearing blades to rotate around the central shaft, the shearing blades cut the debris on the mesh.

[0010] Preferably, the drive source includes a servo motor, the output end of which is provided with a gear, and the outer side of the shearing disk is provided with gear teeth in a circular array, the gear meshing with the shearing disk.

[0011] Compared with the prior art, the beneficial effects of this utility model are: By installing a screen at the water inlet, debris in the water can be effectively intercepted, preventing it from entering the propeller and causing entanglement and blockage. At the same time, the shearing component can promptly cut off the debris on the screen, further avoiding the accumulation and entanglement of debris and ensuring the normal operation of the propeller. The design of the bushing assembly makes the rotation of the output shaft more stable and avoids the risk of entanglement. The self-lubricating tube reduces the friction between the output shaft and the bushing assembly, reducing the heat and wear caused by friction, and also reducing the possibility of entanglement caused by friction. The anti-snagging blade sleeve and its outer cutting protrusion can rotate with the output shaft to cut debris that may be close to the impeller, thereby preventing debris from getting tangled between the impeller and the output shaft. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 A schematic diagram of the structure for preventing the tool sleeve from wrapping around; Figure 3 This is a schematic diagram of the shear disc structure.

[0013] Reference numerals: 1. Inclined tube; 2. Straight tube; 3. Output shaft; 4. Impeller; 5. Inlet; 6. Outlet; 7. Flow channel cavity; 8. Shaft sleeve assembly; 9. Partition screen; 10. Shearing assembly; 11. Sleeve tube one; 12. Sleeve tube two; 13. Mounting bracket; 14. Self-lubricating tube; 15. Anti-snagging blade sleeve; 16. Cutting convex angle; 17. Shearing disc; 18. Drive source; 19. Central shaft; 20. Shearing blade; 21. Servo motor; 22. Gear; 23. Gear tooth. 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 propeller with an anti-entanglement structure includes an inclined tube 1, a straight tube 2, an output shaft 3, and an impeller 4. The output shaft 3 extends into the inclined tube 1 and the straight tube 2. The impeller 4 is fixedly mounted on the top of the output shaft 3. The inclined tube 1 and the straight tube 2 are fixedly connected. An inlet 5 is provided at the side end of the inclined tube 1, and an outlet 6 is provided at the side end of the straight tube 2. A flow channel cavity 7 is formed inside the inclined tube 1 and the straight tube 2. A bushing assembly 8 is also fixedly mounted inside the housing. The output shaft 3 is mounted inside the bushing assembly 8. A screen 9 and a shearing assembly 10 are also provided at the inlet 5. The shearing assembly 10 is used to shear debris on the screen 9.

[0016] The bushing assembly 8 includes a first bushing 11, a second bushing 12, and a mounting bracket 13. The mounting bracket 13 is fixedly installed inside the straight pipe 2, the first bushing 11 is fixedly installed inside the inclined pipe 1, and the second bushing 12 is sleeved on the output shaft 3 and positioned between the first bushing 11 and the mounting bracket 13. A self-lubricating pipe 14 is also provided between the output shaft 3 and the first bushing 11 and the second bushing 12. The output shaft 3 rotates stably within the bushing assembly 8, driving the impeller 4 to rotate and generating thrust. The first bushing 11, the second bushing 12, and the mounting bracket 13 in the bushing assembly 8 work together to ensure that the output shaft 3 rotates smoothly and without deviation. The self-lubricating pipe 14 effectively reduces the friction between the output shaft 3 and the bushing assembly 8, reducing heat generation and wear, and further ensuring the stable operation of the propeller.

[0017] An anti-winding blade sleeve 15 is also fitted on the output shaft 3. The anti-winding blade sleeve 15 is positioned between the mounting bracket 13 and the impeller 4. Multiple cutting protrusions 16 are arranged in a ring array on the outer side of the anti-winding blade sleeve 15. The anti-winding blade sleeve 15 rotates with the rotation of the output shaft 3. The multiple cutting protrusions 16 on its outer side can cut debris close to the impeller 4 in a timely manner, preventing debris from getting tangled between the impeller 4 and the output shaft 3, thereby ensuring the normal operation and high efficiency of the propeller.

[0018] The shearing assembly 10 includes a shearing disk 17 and a drive source 18. A central shaft 19 is provided in the middle of the shearing disk 17. The central shaft 19 rotates with the center of the mesh 9. Shearing blades 20 are provided at both ends of the central shaft 19. When the drive source 18 drives the shearing blades 20 to rotate around the central shaft 19, the shearing blades 20 cut the debris on the mesh 9. The drive source 18 includes a servo motor 21. A gear 22 is provided at the output end of the servo motor 21. Gear teeth 23 are arranged in a ring array on the outer side of the shearing disk 17. The gear 22 meshes with the shearing disk 17.

[0019] In practical applications, the working process of the propeller is as follows: when the propeller makes abnormal noise or the hull power is insufficient, the servo motor 21 is started to work. Through the gear 22, it meshes with the gear teeth 23 on the outer side of the shearing disk 17, driving the shearing disk 17 to rotate around the central shaft 19. At this time, the shearing blades 20 set at both ends of the central shaft 19 rotate accordingly, cutting the debris on the screen 9 to prevent the debris from accumulating on the screen 9 and causing the water inlet 5 to be blocked.

[0020] 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 propeller with an anti-winding structure, comprising an inclined tube (1), a straight tube (2), an output shaft (3), and an impeller (4), wherein the output shaft (3) extends into the inclined tube (1) and the straight tube (2), the impeller (4) is fixedly mounted on the top of the output shaft (3), the inclined tube (1) and the straight tube (2) are fixedly connected, an inlet (5) is provided at the side end of the inclined tube (1), an outlet (6) is provided at the side end of the straight tube (2), and a flow channel cavity (7) is formed in the inclined tube (1) and the straight tube (2), characterized in that: A bushing assembly (8) is also fixedly installed inside the housing. The output shaft (3) is installed inside the bushing assembly (8). A screen (9) and a shearing assembly (10) are also installed at the water inlet (5). The shearing assembly (10) is used to shear debris on the screen (9).

2. A propeller with an anti-entanglement structure according to claim 1, characterized in that: The bushing assembly (8) includes a first bushing (11), a second bushing (12), and a mounting bracket (13). The mounting bracket (13) is fixedly installed inside the straight pipe (2), the first bushing (11) is fixedly installed inside the inclined pipe (1), and the second bushing (12) is sleeved on the output shaft (3) and is located between the first bushing (11) and the mounting bracket (13).

3. A propeller with an anti-entanglement structure according to claim 2, characterized in that: A self-lubricating pipe (14) is also provided between the output shaft (3) and the first sleeve (11) and the second sleeve (12).

4. A propeller with an anti-entanglement structure according to claim 2, characterized in that: An anti-winding blade sleeve (15) is also fitted on the output shaft (3). The anti-winding blade sleeve (15) is set between the mounting bracket (13) and the impeller (4). The outer side of the anti-winding blade sleeve (15) is provided with multiple cutting protrusions (16) in a ring array. The anti-winding blade sleeve (15) rotates coaxially with the output shaft (3).

5. A propeller with an anti-entanglement structure according to claim 1, characterized in that: The shearing assembly (10) includes a shearing disc (17) and a drive source (18). A central shaft (19) is provided in the middle of the shearing disc (17). The central shaft (19) is rotatably engaged with the center of the mesh (9). Shearing blades (20) are provided at both ends of the central shaft (19). When the drive source (18) drives the shearing blades (20) to rotate around the central shaft (19), the shearing blades (20) cut the debris on the mesh (9).

6. A propeller with an anti-entanglement structure according to claim 5, characterized in that: The drive source (18) includes a servo motor (21), the output end of which is provided with a gear (22), and the outer side of the shearing disk (17) is provided with a ring array of gear teeth (23), which mesh with the shearing disk (17).

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