Efficient propeller for ship

Abstract

The utility model relates to the technical field of propellers, and discloses an efficient propeller for a ship, which comprises a shaft body and helical blades, the connecting rib plate integrally formed at the bottom end of the spiral blade can be clamped in the mounting groove outside the shaft body in a sliding mode, the reinforcing insertion plate can be clamped outside the spiral blade through the receding groove in one side, the two ends of the reinforcing insertion plate are fixed through the fixing bolts, and therefore the fixing bolts can be disassembled and assembled at the spacious positions on the two sides of the spiral blade more conveniently and rapidly; the connecting rib plates are clamped in the mounting grooves formed in the circumference of the shaft body in a sliding mode, so that stress points between the bottom ends of the spiral blades and the shaft body are transferred to the second reinforcing ribs on the two sides of the connecting rib plates, the two sides of the bottoms of the spiral blades abut against the shaft body, and stress is more stable; and the two sides of the spiral blade abut against the two sides of the spiral blade through the receding groove and the mounting groove in one side of the reinforcing insertion plate, so that stress points are increased on the two sides of the spiral blade, and the connection stability of the spiral blade is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of propellers, in particular to a high-efficiency propeller for ships. Background Art

[0002] The ship propeller is a device that converts the power generated by the engine into thrust to propel the ship forward. The core function of the ship propeller is to convert the energy provided by the ship's power device into thrust to propel the ship forward in the water. It overcomes the resistance of sailing in the water and ensures that the ship can sail smoothly.

[0003] For example, the Chinese patent authorization announcement number is CN212099306U, a high-efficiency propeller for a ship, including a shaft sleeve, the shaft sleeve is fixedly connected with a fixed plug rod on all sides, the outer surface of the fixed plug rod is sleeved with a plug sleeve, the top of the plug sleeve is fixedly connected with a spiral blade body, and fastening threaded holes are opened on both sides of the surface of the fixed plug rod;

[0004] In the prior art, the fastening threaded rod is rotated and drawn out from the inner cavity of the fastening threaded hole, and the fixing between the plug-in sleeve and the fixed plug-in rod is released, so that the plug-in sleeve and the spiral blade body are removed together, and the effect of separate replacement is achieved, which is not only efficient but also avoids waste. On the contrary, the limit slider in the inner cavity of the plug-in sleeve is placed in the inner cavity of the limit slideway for limiting, and the fastening threaded rod is rotated, and the fastening threaded rod is extended to the inner cavity of the fastening threaded hole, so that the fixing is completed, which solves the problem that the spiral blade of the spiral propeller cannot be replaced separately because it is a whole, and the overall replacement efficiency is low;

[0005] However, the spiral blades installed on the circumference of the existing ship propeller shaft are mostly fixed directly to the shaft by bolts. First, the bolts are installed in the gaps between adjacent spiral blades, and it is not convenient to disassemble and assemble the bolts from the gaps. In addition, the stress points at the connection between the ends of the spiral blades and the shaft are too concentrated. When the spiral blades run at high resistance, the stability of the connection is poor. Utility Model Content

[0006] The utility model aims to provide a high-efficiency propeller for ships, which can disperse the bolt connection points in the wide spaces on both sides of the spiral blades, making disassembly and assembly more convenient, and strengthen the stress points at the connection between the spiral blades and the shaft body, thereby improving the connection stability of the spiral blades.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-efficiency propeller for ships, comprising a shaft body and a spiral blade, wherein the spiral blades are installed at equal intervals on the outer circumference of the shaft body, a reinforcing plug plate is installed at the connection between the shaft body and the spiral blade, and mounting grooves are opened at equal intervals on the outer circumference of the shaft body, a connecting rib plate is integrally formed on one side of the spiral blade, the connecting rib plate is slidably engaged in the corresponding inner wall of the mounting groove, a second reinforcing rib is integrally formed on the top of the connecting rib plate, and a first reinforcing rib is integrally formed at the connection between the spiral blade and the connecting rib plate, the reinforcing plug plate is an L-shaped structure, and fixing bolts are respectively installed between the two ends of the reinforcing plug plate and the shaft body through threads, a clearance groove is opened on one side of the reinforcing plug plate, and the reinforcing plug plate is engaged with the corresponding outer side of the spiral blade through the clearance groove.

[0008] Preferably, the top of the connecting rib plate is a U-shaped structure, and the bottom end of the spiral blade is located in the U-shaped groove at the top of the connecting rib plate.

[0009] Preferably, a positioning hole matching the fixing bolt is formed at one end of the connecting rib plate.

[0010] Preferably, one side of the spiral blade conflicts with one side of the inner wall of the clearance groove, and the other side of the spiral blade conflicts with one side of the inner wall of the installation groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The connecting rib plate integrally formed at the bottom end of the spiral blade in the utility model can be slidably engaged in the mounting groove outside the shaft body, and the reinforcing plug plate can be engaged with the outside of the spiral blade through a one-side clearance groove, and fixed at both ends of the reinforcing plug plate by fixing bolts, so that it is more convenient to disassemble and assemble the fixing bolts at the spacious positions on both sides of the spiral blade, and it is more convenient to disassemble and assemble the bolts in the gap between adjacent spiral blades when compared with the existing spiral blade disassembly and assembly;

[0013] In the utility model, the connecting rib plate is slidably engaged in the installation groove opened on the circumference of the shaft body, so that the stress point between the bottom end of the spiral blade and the shaft body is transferred to the second reinforcing ribs on both sides of the connecting rib plate, so that the two sides of the bottom of the spiral blade are tightly pressed against the shaft body, and the force is more stable. The two sides of the spiral blade are pressed against the two sides of the spiral blade through the giving groove and the installation groove on one side of the reinforcement plug plate, thereby increasing the stress points on both sides of the spiral blade and improving the connection stability of the spiral blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the back structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the split structure of the reinforcement plug board in the utility model;

[0017] Figure 4 for Figure 3 Schematic diagram of the local enlarged structure at point A in the middle.

[0018] In the figure: 1, shaft; 2, spiral blade; 3, reinforcement plug plate; 4, mounting groove; 5, connecting rib plate; 21, first reinforcing rib; 31, fixing bolt; 32, clearance groove; 51, second reinforcing rib; 52, positioning hole. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] See also Figure 1-4 The utility model provides a technical solution: a high-efficiency propeller for a ship, comprising a shaft body 1 and spiral blades 2, spiral blades 2 are installed at equal intervals on the outer circumference of the shaft body 1, and a reinforcing plug plate 3 is installed at the connection between the shaft body 1 and the spiral blades 2;

[0021] The shaft body 1 is provided with mounting grooves 4 at equal intervals on the outer circumference. A connecting rib plate 5 is integrally formed on one side of the spiral blade 2. The connecting rib plate 5 is slidably engaged in the corresponding inner wall of the mounting groove 4. A second reinforcing rib 51 is integrally formed on the top of the connecting rib plate 5. A first reinforcing rib 21 is integrally formed at the junction of the spiral blade 2 and the connecting rib plate 5.

[0022] The connecting rib plate 5 integrally formed at the bottom end of the spiral blade 2 can be slidably engaged in the external mounting groove 4 of the shaft body 1, and the reinforcing plug plate 3 can be engaged on the outside of the spiral blade 2 through the one side of the groove 32, and fixed at both ends of the reinforcing plug plate 3 by fixing bolts 31, so that it is more convenient to disassemble and assemble the fixing bolts 31 at the spacious positions on both sides of the spiral blade 2. Compared with the existing spiral blade 2, it is more convenient to disassemble and assemble the bolts in the gap between adjacent spiral blades 2;

[0023] The connecting rib plate 5 is slidably engaged in the installation groove 4 opened on the circumference of the shaft body 1, so that the force point between the bottom end of the spiral blade 2 and the shaft body 1 is transferred to the second reinforcing ribs 51 on both sides of the connecting rib plate 5, so that the two sides of the bottom of the spiral blade 2 are pressed tightly against the shaft body 1, and the force is more stable. The two sides of the spiral blade 2 are pressed tightly against the two sides of the spiral blade 2 through the yield groove 32 on one side of the reinforcing plug plate 3 and the installation groove 4, thereby increasing the force points on both sides of the spiral blade 2 and improving the connection stability of the spiral blade 2.

[0024] Among them, the reinforcement plug plate 3 is an L-shaped structure, and fixing bolts 31 are respectively installed between the two ends of the reinforcement plug plate 3 and the shaft body 1 through threads. A clearance groove 32 is opened on one side of the reinforcement plug plate 3. The reinforcement plug plate 3 is engaged with the corresponding spiral blade 2 through the clearance groove 32. The spiral blade 2 is inserted into the installation groove 4 through the bottom connecting rib plate 5, and the reinforcement plug plate 3 is engaged with the outside of the spiral blade 2 through the clearance groove 32. The spiral blade 2 is fastened to the shaft body 1 and the reinforcement plug plate 3 by fixing bolts 31 at both ends of the reinforcement plug plate 3.

[0025] Among them, the top of the connecting rib plate 5 is a U-shaped structure, the bottom end of the spiral blade 2 is located in the U-shaped groove at the top of the connecting rib plate 5, and the connecting rib plate 5 is slidably engaged in the installation groove 4 opened on the circumference of the shaft body 1, so that the force point between the bottom end of the spiral blade 2 and the shaft body 1 is transferred to the second reinforcing ribs 51 on both sides of the connecting rib plate 5, so that the two sides of the bottom of the spiral blade 2 are tightly pressed against the shaft body 1, and the force is more stable.

[0026] Among them, a positioning hole 52 matching the fixing bolt 31 is opened at one end of the connecting rib plate 5, one side of the spiral blade 2 is in conflict with one side of the inner wall of the make way groove 32, and the other side of the spiral blade 2 is in conflict with one side of the inner wall of the mounting groove 4. The two sides of the spiral blade 2 are pressed against the two sides of the spiral blade 2 by the make way groove 32 on one side of the reinforcing plug plate 3 and the mounting groove 4, thereby increasing the force points on both sides of the spiral blade 2 and improving the connection stability of the spiral blade 2.

[0027] Working principle: When in use, first slide each set of spiral blades 2 into the external mounting groove 4 of the shaft body 1 through the bottom connecting rib plate 5, then snap the reinforcing plug plate 3 into the corresponding external spiral blade 2 through the one side clearance groove 32, and fix the reinforcing plug plate 3 at both ends with the fixing bolts 31, so that it is more convenient to disassemble and install the fixing bolts 31 at the spacious positions on both sides of the spiral blade 2;

[0028] The connecting rib plate 5 is slidably engaged in the installation groove 4 opened on the circumference of the shaft body 1, so that the force point between the bottom end of the spiral blade 2 and the shaft body 1 is transferred to the second reinforcing ribs 51 on both sides of the connecting rib plate 5, so that the two sides of the bottom of the spiral blade 2 are pressed tightly against the shaft body 1, and the force is more stable. The two sides of the spiral blade 2 are pressed tightly against the two sides of the spiral blade 2 through the yield groove 32 on one side of the reinforcing plug plate 3 and the installation groove 4, thereby increasing the force points on both sides of the spiral blade 2 and improving the connection stability of the spiral blade 2.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes and modifications may be made to the embodiments without departing from the principles of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency propeller for a ship, comprising a shaft (1) and a spiral blade (2), characterized in that: Spiral blades (2) are installed at equal intervals on the outer circumference of the shaft body (1), and a reinforcing plug plate (3) is installed at the connection between the shaft body (1) and the spiral blade (2). Mounting grooves (4) are opened at equal intervals on the outer circumference of the shaft body (1). A connecting rib plate (5) is integrally formed on one side of the spiral blade (2). The connecting rib plate (5) is slidably engaged in the corresponding inner wall of the mounting groove (4). A second reinforcing rib (51) is integrally formed on the top of the connecting rib plate (5). A first reinforcing rib (21) is integrally formed at the connection between the spiral blade (2) and the connecting rib plate (5). The reinforcing plug plate (3) is an L-shaped structure. Fixing bolts (31) are respectively installed between the two ends of the reinforcing plug plate (3) and the shaft body (1) through threads. A clearance groove (32) is opened on one side of the reinforcing plug plate (3), and the reinforcing plug plate (3) is engaged with the corresponding outer side of the spiral blade (2) through the clearance groove (32).

2. A high-efficiency propeller for a ship according to claim 1, characterized in that: The top of the connecting rib plate (5) is a U-shaped structure, and the bottom end of the spiral blade (2) is located in the U-shaped groove at the top of the connecting rib plate (5).

3. A high-efficiency propeller for a ship according to claim 2, characterized in that: A positioning hole (52) matching the fixing bolt (31) is formed at one end of the connecting rib plate (5).

4. A high-efficiency propeller for a ship according to claim 3, characterized in that: One side of the spiral blade (2) abuts against one side of the inner wall of the clearance groove (32), and the other side of the spiral blade (2) abuts against one side of the inner wall of the installation groove (4).

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