Anti-winding device for propeller shaft

Abstract

A propeller shaft anti-winding device comprises a driving part and a propeller rotating through the driving part, the driving part is provided with a driving shaft driving the propeller to rotate, the driving shaft is sleeved with a cutting part, and the cutting part is located between the driving part and the propeller; the cutting piece is fixedly connected to the driving piece, a plurality of cutting knives used for preventing the driving shaft from being wound are arranged on the cutting piece, and the cutting knives are arranged towards the propeller; compared with the prior art, the driving shaft is sleeved with the cutting piece fixedly connected with the driving piece, so that the driving shaft rotates relative to the cutting piece in the rotating process, sundries on the driving shaft can be cut and removed, the driving shaft is prevented from being locked by the sundries, and the stability and safety of the driving shaft in the using process are ensured; and the sailing safety of the ship is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ship equipment, in particular to a propeller shaft anti-winding device. Background Art

[0002] At present, the propulsion device of a ship generally adopts a propeller, which is composed of a hub and propeller blades. The propeller is connected to the output shaft of the motor, and the motor rotates the output shaft to drive the propeller to rotate to drive the navigation of the ship.

[0003] In some complex waters, such as those rich in herbaceous plants such as aquatic plants and fabrics such as fishing nets and ropes, the propeller shaft will be entangled by the above-mentioned debris when the ship is sailing, affecting the normal operation of the propeller. Sometimes the propeller shaft will be locked by the debris, causing the motor to fail to rotate or even burn, which can easily cause safety accidents.

[0004] To solve the above problems, Chinese patent application number 202123332833.2 discloses a propeller anti-winding device, which includes a first cutting assembly and a second cutting assembly, wherein the first cutting assembly includes a first cutting knife arranged on the propeller, and the second cutting assembly includes a second cutting knife arranged on the housing of the drive device. Chinese patent application number 201820738821.9 discloses a propeller anti-winding device, which includes a fixing seat mounted on the stern shaft, a plurality of blades are arranged on the fixing seat, a groove is arranged on the end face of the fixing seat, the blade is plugged into the groove, and a fixing member that cooperates with the fixing seat is also arranged on the end face of the fixing seat.

[0005] In the above-mentioned prior art, the cutting assembly is installed on the propeller, and the cutting assembly rotates synchronously with the propeller. The cutting assembly is driven to rotate by the propeller, so that the cutting assembly can cut the debris on the propeller. Although the above-mentioned scheme can cut the debris on the propeller, it is unable to remove the water plants and other debris that have been entangled on the drive shaft, so that the drive shaft is locked by the debris, which can easily cause the drive motor to fail to operate normally or even be damaged. Utility Model Content

[0006] The utility model aims to overcome the defects in the prior art and provides a propeller shaft anti-winding device which can cut and remove the debris on the driving shaft.

[0007] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a propeller shaft anti-winding device, including a driving member and a propeller rotated by the driving member, the driving member is provided with a driving shaft for driving the propeller to rotate, the driving shaft is sleeved with a cutting member, and the cutting member is located between the driving member and the propeller; the cutting member is fixedly connected to the driving member, and the cutting member is provided with a plurality of cutting knives for preventing the driving shaft from winding, and the plurality of cutting knives are arranged toward the propeller.

[0008] As a preferred solution of the utility model, the plurality of cutting knives are arranged along the circumferential direction of the cutting piece.

[0009] As a preferred solution of the utility model, a cutting gap is formed between the cutting knife and the propeller to prevent the cutting knife from colliding with the propeller.

[0010] As a preferred solution of the utility model, a housing is installed at the end of the driving member, and the cutting member is fixedly arranged on the end surface of the housing.

[0011] As a preferred solution of the utility model, the shell is formed with a plurality of first bolt holes for fixing the cutting member, the cutting member is formed with a plurality of second bolt holes corresponding to the first bolt holes one by one, and the second bolt holes are installed with bolts connected to the first bolt holes.

[0012] As a preferred solution of the utility model, a connecting hole for passing the driving shaft is formed in the middle of the shell, and a mounting hole for passing the driving shaft is formed in the middle of the cutting piece.

[0013] As a preferred solution of the utility model, the propeller is fixedly connected to the end of the drive shaft, and the drive shaft rotates synchronously with the propeller.

[0014] As a preferred solution of the utility model, a mounting section for mounting a propeller is formed at the end of the drive shaft, and the diameter of the mounting section is smaller than the diameter of the drive shaft.

[0015] As a preferred solution of the utility model, an external thread for connecting to a propeller is formed on the mounting section.

[0016] As a preferred solution of the utility model, an axial hole connected to the mounting section is formed in the middle of the propeller, and an internal thread matching the external thread is formed in the axial hole.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. By sleeved on the drive shaft and fixedly connected to the driving member, the drive shaft rotates relative to the cutting member during the rotation process, so that the debris on the drive shaft can be cut and removed, preventing the drive shaft from being locked by the debris, ensuring the stability and safety of the drive shaft during use, and improving the safety of ship navigation;

[0019] 2. Furthermore, by setting the cutting knife on the side of the cutting piece and setting a cutting gap between the cutting piece and the propeller, the cutting knife is located in the cutting gap, and the cutting and cleaning of debris is achieved under the action of the cutting knife, avoiding the setting of the cutting knife affecting the normal operation of the propeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the cutting piece of the utility model

[0022] Figure numerals: driving member 1, driving shaft 101, mounting section 1011, housing 102, first bolt hole 1021, connecting hole 1022, propeller 2, shaft hole 201, cutting member 3, cutting knife 301, blade 3011, mounting hole 302, second bolt hole 303, bolt 304. DETAILED DESCRIPTION

[0023] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-Figure 2 As shown, a propeller shaft anti-winding device includes a driving member 1 and a propeller 2 rotated by the driving member 1, the driving member 1 is provided with a driving shaft 101 for driving the propeller 2 to rotate, the driving shaft 101 is sleeved with a cutting member 3, and the cutting member 3 is located between the driving member 1 and the propeller 2; the cutting member 3 is fixedly connected to the driving member 1, and the cutting member 3 is provided with a plurality of cutting knives 301 for preventing the driving shaft 101 from winding, and the plurality of cutting knives 301 are arranged toward the propeller 2.

[0025] Furthermore, the driving member 1 usually uses an electric pusher or an oil-driven propeller as a power device for driving the propeller to rotate. The propeller 2 is arranged on the output end of the driving member 1, and the driving shaft 101 is arranged on the output end of the driving member 1. The driving shaft 101 passes through the cutting member 3 and is fixedly connected to the propeller 2; the cutting member 3 is fixedly arranged at the end of the driving member 1, and the cutting member 3 is located at the output end of the driving member 1. When the driving shaft 101 drives the propeller 2 to rotate, the cutting member 3 is fixed relative to the driving member 1, so that the driving shaft 101 rotates relative to the cutting member 3 during the rotation process, so that the debris on the driving shaft 101 can be cut and removed, and the driving shaft 101 can be prevented from being locked by debris, thereby ensuring the stability and safety of the driving shaft 101 during use, and improving the safety of ship navigation.

[0026] In addition, the cutting member 3 is a circular structure, the cutting member 3 is arranged parallel to the end surface of the driving member 1, and the axis of the cutting member 3 and the axis of the driving shaft 101 are located on the same horizontal line.

[0027] A plurality of cutting knives 301 are arranged along the circumferential direction of the cutting piece 3. Furthermore, a plurality of cutting knives 301 are arranged on the side of the cutting piece 3, and the plurality of cutting knives 301 are evenly and equidistantly distributed. The ends and both sides of the cutting knives 301 are formed with blades 3011 for cutting debris. When debris on the driving shaft 101 is cut and removed, the blades 3011 on both sides and the ends of the cutting knives 301 ensure that the debris can be completely removed, thereby improving the cleaning effect of the debris.

[0028] A cutting gap is formed between the cutting knife 301 and the propeller 2 to prevent the cutting knife 301 from colliding with the propeller 2. Furthermore, the cutting knife 301 is located in the cutting gap, and the cutting knife 301 can cut and clean the debris to avoid the setting of the cutting knife 301 affecting the normal operation of the propeller 2.

[0029] A housing 102 is installed at the end of the driving member 1 , and the cutting member 3 is fixedly arranged on the end surface of the housing 102 . The cutting member 3 is parallel to the end surface of the housing 102 and is fixedly arranged.

[0030] The shell 102 is provided with a plurality of first bolt holes 1021 for fixing the cutting member 3, and the cutting member 3 is provided with a plurality of second bolt holes 303 corresponding to the first bolt holes 1021 one by one, and the second bolt holes 303 are provided with bolts 304 connected to the first bolt holes 1021. Furthermore, the second bolt holes 303 are located between two adjacent cutting knives 301, and the cutting member 3 is fixed to the shell 102 by the bolts 304. Meanwhile, since the second bolt holes 303 are located between two adjacent cutting knives 301, when the bolts 304 tighten the cutting member 3, uniform force is ensured on the cutting member 3, thereby avoiding shaking of the cutting member 3 due to uneven force, and further causing the cutting member 3 to collide with the drive shaft 101 or the propeller 2, thereby damaging the drive shaft 101 or the propeller 2.

[0031] A connecting hole 1022 for passing the driving shaft 101 is formed in the middle of the housing 102, and a mounting hole 302 for passing the driving shaft 101 is formed in the middle of the cutting member 3. The connecting hole 1022 and the mounting hole 302 are located on the same axis.

[0032] The propeller 2 is fixedly connected to the end of the drive shaft 101, and the drive shaft 101 rotates synchronously with the propeller 2. Specifically, a mounting section 1011 for mounting the propeller 2 is formed at the end of the drive shaft 101, and the diameter of the mounting section 1011 is smaller than the diameter of the drive shaft 101. Furthermore, by setting the mounting section 1011, when the propeller 2 is mounted on the mounting section 1011, since the diameter of the mounting section 1011 is smaller than the diameter of the drive shaft 101, the installation position of the propeller 2 is limited, thereby forming a cutting gap between the propeller 2 and the cutting knife 301. Under the action of the cutting gap, interference between the cutting knife 301 and the propeller 2 is avoided, thereby avoiding damage to the cutting knife 301 and the propeller 2.

[0033] The mounting section 1011 is formed with an external thread for connecting to the propeller 2 , and the middle portion of the propeller 2 is formed with an axial hole 201 connected to the mounting section 1011 , and the axial hole 201 is formed with an internal thread matching the external thread.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0035] Although the following terms are used more frequently in this article: driving member 1, driving shaft 101, mounting section 1011, housing 102, first bolt hole 1021, connecting hole 1022, propeller 2, shaft hole 201, cutting member 3, cutting knife 301, blade 3011, mounting hole 302, second bolt hole 303, bolt 304, etc., the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A propeller shaft anti-winding device, comprising a driving member (1) and a propeller (2) rotated by the driving member (1), characterized in that: The driving member (1) is provided with a driving shaft (101) for driving the propeller (2) to rotate, and a cutting member (3) is sleeved on the driving shaft (101), and the cutting member (3) is located between the driving member (1) and the propeller (2); the cutting member (3) is fixedly connected to the driving member (1), and a plurality of cutting knives (301) are provided on the cutting member (3) for preventing the driving shaft (101) from winding, and the plurality of cutting knives (301) are arranged toward the propeller (2); a housing (102) is installed at the end of the driving member (1), and the cutting member (3) is fixedly arranged on the end surface of the housing (102); a plurality of first bolt holes (1021) for fixing the cutting member (3) are formed on the housing (102), and a plurality of second bolt holes (303) corresponding to the first bolt holes (1021) are formed on the cutting member (3), and bolts (304) connected to the first bolt holes (1021) are installed on the second bolt holes (303).

2. A propeller shaft anti-winding device according to claim 1, characterized in that: The plurality of cutting knives (301) are arranged along the circumferential direction of the cutting member (3).

3. A propeller shaft anti-winding device according to claim 1, characterized in that: A cutting gap is formed between the cutting blade (301) and the propeller (2) to prevent the cutting blade (301) from colliding with the propeller (2).

4. A propeller shaft anti-winding device according to claim 1, characterized in that: A connecting hole (1022) for passing the driving shaft (101) is formed in the middle of the housing (102), and a mounting hole (302) for passing the driving shaft (101) is formed in the middle of the cutting member (3).

5. The propeller shaft anti-winding device according to claim 1, characterized in that: The propeller (2) is fixedly connected to the end of the drive shaft (101), and the drive shaft (101) and the propeller (2) rotate synchronously.

6. A propeller shaft anti-winding device according to claim 5, characterized in that: The end of the driving shaft (101) is formed with a mounting section (1011) for mounting the propeller (2), and the diameter of the mounting section (1011) is smaller than the diameter of the driving shaft (101).

7. A propeller shaft anti-winding device according to claim 6, characterized in that: The mounting section (1011) is provided with an external thread for connecting to the propeller (2).

8. A propeller shaft anti-winding device according to claim 7, characterized in that: The propeller (2) has an axial hole (201) in the middle thereof which is connected to the mounting section (1011), and an internal thread which matches the external thread is formed in the axial hole (201).

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