High-ice-grade pod propeller with detachable paddles

Abstract

The high-ice-grade pod propeller comprises a propeller body, a driving piece is arranged in the propeller body, a connecting piece is arranged at the output end of the driving piece, the side, away from the driving piece, of the connecting piece is in transmission connection with a propeller hub, and a plurality of blades are arranged on the side wall of the propeller hub in the circumferential direction; the paddle is movably connected with the propeller hub, and the connecting piece is detachably connected with the propeller hub and the paddle. The propeller hub is improved, the mounting grooves in the propeller hub are matched with the positioning blocks, the blades can be quickly mounted, meanwhile, the positions and angles of the blades do not need to be adjusted and calibrated through the mounting mode, and quick, efficient and convenient mounting is achieved. Meanwhile, by means of the matched connection mode of the propeller hub, the positioning blocks and the positioning pins, it can be guaranteed that the propeller blades are installed more stably, and disassembly and replacement are convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of pod propellers, and in particular relates to a high-ice-class pod propeller with detachable blades. Background Art

[0002] In the field of modern ships, pod propulsion has become an important choice for many ship power systems due to its advantages such as high efficiency and flexibility, enabling ships to have better maneuverability and excellent performance in turning and precise positioning operations in narrow waters. Compared with traditional propulsion systems, it can also reduce hull resistance, improve fuel economy, and effectively reduce operating costs. However, existing ship pod thrusters have many problems with the connection structure between the blades and the motor shaft. The installation and disassembly process of the traditional connection structure is cumbersome. When the blades are worn, damaged and need to be replaced, or when daily maintenance is performed, the blades, motor shafts, etc. often require a lot of time and effort to install or disassemble. The complicated installation process not only prolongs the ship's downtime and increases maintenance costs, but may also affect the stability and reliability of the connection due to improper operation. Moreover, during long-term use, the traditional structure is easily affected by factors such as seawater corrosion, water flow impact, and mechanical vibration, and is prone to loosening and reduced sealing performance, resulting in reduced power transmission efficiency and even safety hazards, which seriously restricts the full performance of the ship pod thruster and the extension of its service life. Especially in icy environments, it is often necessary to regularly maintain or replace the blades.

[0003] The existing devices have the following defects: the connection method of the existing devices is relatively cumbersome, generally using welding or direct bolt connection, which often requires destroying the connection parts or using professional disassembly equipment during disassembly, resulting in low quick disassembly efficiency; and when replacing and installing the blades, the angle and distribution position of the blades need to be repositioned and calibrated, and the calibration generally uses manual proofreading, which is prone to installation deviations, thereby affecting the balance and working efficiency of the propeller and increasing energy consumption. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the object of the present invention is to solve the problems in the prior art and provide a high ice class pod thruster with detachable blades, so as to achieve the purpose of quickly installing or removing the blades without the need for recalibration and positioning during installation.

[0005] The present invention is implemented by the following technical solutions: A high ice-class pod thruster with detachable blades comprises a thruster body, a driving member is arranged inside the thruster body, a connecting member is arranged at the output end of the driving member, a side of the connecting member away from the driving member is transmission-connected to a hub, a plurality of blades are circumferentially arranged on a side wall of the hub, the blades are movably connected to the hub, and the connecting member is detachably connected to the hub and the blades.

[0006] To optimize the above technical solutions, the specific measures taken also include: Furthermore, the driving member includes a driving motor and a rotating shaft, the driving motor is arranged inside the propeller body, the output end of the driving motor is transmission-connected to the rotating shaft, and one end of the rotating shaft away from the driving motor passes through the propeller body and is transmission-connected to the connecting member.

[0007] Furthermore, the connecting member includes a connecting disk and a transmission shaft, the connecting disk is transmission-connected to the rotating shaft, the transmission shaft is arranged on a side of the connecting disk away from the rotating shaft, and the transmission shaft is transmission-connected to the propeller hub.

[0008] Furthermore, a groove is provided inside the hub on one side close to the connecting disk, a connecting sleeve is provided in the groove, a connecting groove is provided inside the connecting sleeve, the transmission shaft portion is provided in the connecting groove, the transmission shaft has a polygonal columnar structure, and the shape of the connecting groove is consistent with that of the transmission shaft.

[0009] Furthermore, a plurality of mounting grooves are equidistantly arranged in the circumferential direction on the side wall of the hub, the mounting grooves are connected to the grooves, the blades are movably arranged in the mounting grooves, and the connecting plate is partially inserted into the grooves and detachably connected to the blades.

[0010] Furthermore, a positioning block is provided on the blade, the positioning block is arranged in the installation groove, a positioning hole is provided on the positioning block, a plurality of positioning pins equidistantly distributed in a circle are provided on the connecting plate, the positioning pins are distributed around the transmission shaft, and the positioning pins are inserted in the positioning holes.

[0011] Furthermore, one end of the positioning block away from the blade abuts against the side wall of the connecting sleeve.

[0012] Furthermore, a plurality of first connection holes are provided on a side of the hub side wall close to the connection disk, and a plurality of second connection holes are provided on the connection disk, and the first connection holes and the second connection holes are detachably connected.

[0013] Furthermore, a sealing ring is provided between the connecting disk and the hub.

[0014] Furthermore, a sealing sheet is provided between the blade and the positioning block, the sealing sheet is in an arc-shaped structure, the sealing sheet is attached to the outer side wall of the hub, and the size of the sealing sheet is larger than the size of the mounting groove.

[0015] Beneficial effects of the present invention: The present invention improves the setting of the propeller hub and utilizes the installation groove on the propeller hub to cooperate with the positioning block, so that the blades can be quickly installed. At the same time, this installation method does not need to adjust and calibrate the position and angle of the blades, thereby achieving fast, efficient and convenient installation.

[0016] At the same time, the device can ensure more stable installation of the blades by using the matching connection between the hub, the positioning block and the positioning pin. The installation groove on the hub performs the initial positioning of the position angle of the blades, and the connection between the positioning pin and the positioning block performs the secondary positioning of the position angle of the blades, ensuring the accuracy of the blade installation and the reliability of the structural connection.

[0017] The device is provided with sealing structures between the blade and the hub, and between the connecting plate and the hub, so as to ensure the sealing performance of the whole device.

[0018] The matching mode of the transmission shaft and the mounting sleeve of the device can improve the transmission efficiency on the one hand, and provide supporting force for the positioning block at the same time, thereby further enhancing the stability of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a schematic diagram of the local structure of the present invention; Figure 3 This is a schematic diagram of the disassembly of the parts of the central axis connection mechanism of the present invention; Figure 4 It is a partial structural schematic diagram of the central axis connection mechanism of the present invention; Figure 5 It is a schematic diagram of the installation of the local structure of the central axis connection mechanism of the present invention; Figure numerals: propeller body 10, driving member 20, driving motor 21, rotating shaft 22, connecting member 30, connecting plate 31, second connecting hole 311, transmission shaft 32, positioning pin 33, propeller hub 40, groove 41, connecting sleeve 42, connecting groove 43, mounting groove 44, first connecting hole 45, blade 50, positioning block 60, positioning hole 61, sealing sheet 70, pod 80, reinforcement plate 81. DETAILED DESCRIPTION

[0020] In order to illustrate the technical solution and working principle of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] like Figure 1-Figure 5 As shown, this embodiment discloses a high ice-class pod propeller with detachable blades, including a propeller body 10, a driving member 20 is arranged inside the propeller body 10, the driving member 20 is used to provide driving force, and drive the propeller body 10 to sail, a connecting member 30 is arranged at the output end of the driving member 20, and the connecting member 30 is used to transmit the driving force of the driving member 20 to the propeller hub 40, and plays a sealing role for the propeller body 10, and the connecting member 30 is transmission-connected to the propeller hub 40 on the side away from the driving member 20, and the propeller hub 40 rotates according to the driving force transmitted by the connecting member 30. A plurality of blades 50 are circumferentially arranged on the side wall of the propeller hub 40, and the blades 50 are movably connected to the propeller hub 40, and the connecting member 30 is detachably connected to the propeller hub 40 and the blades 50. The detachable connection between the blades 50, the propeller hub 40, and the connecting member 30 facilitates the subsequent maintenance of the blades 50.

[0022] A pod 80 is provided at the upper end of the thruster body 10 , and the pod 80 is used to connect to the ship 90 . A plurality of reinforcing plates 81 arranged at intervals are provided inside the pod 80 , which can improve the connection strength between the pod 80 and the thruster body 10 .

[0023] The driving member 20 includes a driving motor 21 and a rotating shaft 22. The driving motor 21 is arranged inside the propeller body 10. The output end of the driving motor 21 is transmission-connected to the rotating shaft 22. The end of the rotating shaft 22 away from the driving motor 21 passes through the propeller body 10 and is transmission-connected to the connecting member 30.

[0024] The connecting member 30 includes a connecting disk 31 and a transmission shaft 32. The connecting disk 31 is transmission-connected to the rotating shaft 22. The transmission shaft 32 is arranged on the side of the connecting disk 31 away from the rotating shaft 22. The transmission shaft 32 is transmission-connected to the propeller hub 40. A sealing ring is also arranged between the connecting disk 31 and the propeller hub 40.

[0025] A groove 41 is provided on one side of the propeller hub 40 near the connecting disk 31, a connecting sleeve 42 is provided in the groove 41, a connecting groove 43 is provided inside the connecting sleeve 42, a transmission shaft 32 part is provided in the connecting groove 43, the transmission shaft 32 is in a polygonal columnar structure, the shape of the connecting groove 43 is consistent with the transmission shaft 32, it can be ensured that the transmission shaft 32 can be matched with the connecting groove 43, at the same time, the transmission shaft 32 and the connecting groove 43 are arranged in a polygonal columnar structure to provide a stronger torque transmission capacity, and the load is dispersedly transmitted through multiple planes, which can reduce the concentration of local stress and reduce the risk of wear and fatigue failure. It can meet the needs of ship navigation in ice environment.

[0026] A plurality of mounting grooves 44 are equidistantly arranged circumferentially on the side wall of the hub 40, the mounting grooves 44 are connected to the grooves 41, the blades 50 are movably arranged in the mounting grooves 44, the connecting disk 31 is partially inserted into the grooves 41 and is detachably connected to the blades, and the detachable connection method is specifically as follows: a positioning block 60 is arranged on the blade 50, the positioning block 60 is arranged in the mounting groove 44, a positioning hole 61 is arranged on the positioning block 60, a plurality of circumferentially equidistantly distributed positioning pins 33 are arranged on the connecting disk 31, the positioning pins 33 are distributed around the transmission shaft 32, the positioning pins 33 are inserted in the positioning holes 61, and at the same time, the end of the positioning block 60 away from the blade 50 abuts against the side wall of the connecting sleeve 42.

[0027] The assembly process of the blade 50 is as follows: First, the positioning block 60 on the blade 50 is set in the installation groove 44, and the positioning hole 61 on the positioning block 60 is facing the connecting disk 31; then, the transmission shaft 32 and the connecting groove 43 are matched with each other. At this time, due to the polygonal structure of the transmission shaft and the connecting groove 43, the position of the positioning pin 33 on the connecting disk 31 just corresponds to the positioning hole 61, and then the positioning pin 33 is inserted into the positioning hole 61 to complete the fixation of the blade 50.

[0028] A plurality of first connection holes 45 are arranged on one side of the side wall of the propeller hub 40 close to the connecting disk 31, and a plurality of second connection holes 311 are arranged on the connecting disk 31. The first connection holes 45 and the second connection holes 311 are detachably connected. The specific detachable connection method is: bolts are arranged between the first connection holes 45 and the second connection holes 311, and the connecting disk 31 and the propeller hub 40 are fastened by the bolts.

[0029] A sealing sheet 70 is provided between the blade 50 and the positioning block 60. The sealing sheet 70 is in an arc-shaped structure, and the sealing sheet 70 is attached to the outer wall of the hub 40. The size of the sealing sheet 70 is larger than the size of the mounting groove 42. The sealing sheet 70 can block the connection gap between the blade 50 and the hub 40 to ensure the sealing inside the hub 40.

[0030] The overall installation and use process of this device is as follows: First, the driving motor 21 in the driving member 20 starts to work. The driving motor 21 is arranged inside the propeller body 10. The output end of the driving motor 21 is connected to the rotating shaft 22. The driving motor 21 generates power when it runs, driving the rotating shaft 22 to rotate. The reinforcing plate 81 on the top of the driving motor 21 is connected to the propeller body 10, which plays a role in stabilizing the motor and reducing vibration.

[0031] Secondly, as the shaft 22 rotates, the connecting disk 31 fixed on one side of the shaft 22 starts to rotate, and the transmission shaft 32 on the connecting disk 31 and the positioning pins 33 around it also rotate accordingly. The positioning pins 33 are used for subsequent precise positioning, and the transmission shaft 32 is responsible for transmitting power.

[0032] Then, the connecting sleeve 42 on one side of the propeller hub 40 comes into play, and a connecting groove 43 is opened inside the connecting sleeve 42. The transmission shaft 32 is sleeved in the connecting groove 43, and the inner wall of the connecting sleeve 42 and the outer contour of the transmission shaft 32 are matching polygonal structures, and a clearance fit is adopted. In this way, the rotating transmission shaft 32 can drive the connecting sleeve 42 to rotate, and then drive the propeller hub 40 to rotate.

[0033] At the same time, during the rotation of the propeller hub 40, the mounting groove 44 thereon cooperates with the positioning block 60, the positioning block 60 is arranged in the mounting groove 44, a positioning hole 61 is opened on the positioning block 60, and the positioning pin 33 on the rotating connecting disk 31 is inserted into the positioning hole 61, ensuring that the connection between the propeller hub 40 and the connecting disk 31 is firm, so that the propeller hub 40 can rotate smoothly following the connecting disk 31.

[0034] Finally, a sealing sheet 70 between the blade 50 and the positioning block 60 is disposed on the propeller hub 40 to seal the connection gap between the positioning block 60 and the mounting groove 44 .

[0035] The above are only preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of this application. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of this application should be regarded as the protection scope of this application.

Claims

1. A high ice class pod propeller with detachable blades, characterized in that: It includes a propeller body, a driving member is arranged inside the propeller body, a connecting member is arranged at the output end of the driving member, the connecting member is transmission-connected to the propeller hub at the side away from the driving member, a plurality of blades are circumferentially arranged on the side wall of the propeller hub, the blades are movably connected to the propeller hub, and the connecting member is detachably connected to the propeller hub and the blades.

2. The high ice class pod propeller with detachable blades according to claim 1, characterized in that: The driving member includes a driving motor and a rotating shaft. The driving motor is arranged inside the propeller body. The output end of the driving motor is transmission-connected to the rotating shaft. One end of the rotating shaft away from the driving motor passes through the propeller body and is transmission-connected to the connecting member.

3. The high ice class pod propeller with detachable blades according to claim 2 is characterized in that: The connecting member comprises a connecting disc and a transmission shaft, wherein the connecting disc is in transmission connection with the rotating shaft, the transmission shaft is arranged on a side of the connecting disc away from the rotating shaft, and the transmission shaft is in transmission connection with the propeller hub.

4. The high ice class pod propeller with detachable blades according to claim 3 is characterized by: A groove is arranged on one side of the hub close to the connecting disk, a connecting sleeve is arranged in the groove, a connecting groove is opened inside the connecting sleeve, the transmission shaft is partially arranged in the connecting groove, the transmission shaft is a polygonal columnar structure, and the shape of the connecting groove is consistent with that of the transmission shaft.

5. The high ice class pod propeller with detachable blades according to claim 4, characterized in that: A plurality of mounting grooves are equidistantly arranged on the side wall of the hub in a circumferential direction, the mounting grooves are communicated with the grooves, the blades are movably arranged in the mounting grooves, and the connecting plate is partially inserted into the grooves and detachably connected to the blades.

6. The high ice class pod propeller with detachable blades according to claim 5, characterized in that: The blade is provided with a positioning block, the positioning block is arranged in the mounting groove, the positioning block is provided with a positioning hole, the connecting plate is provided with a plurality of positioning pins equidistantly distributed in a circle, the positioning pins are distributed around the transmission shaft, and the positioning pins are inserted in the positioning holes.

7. The high ice class pod propeller with detachable blades according to claim 6, characterized in that: One end of the positioning block away from the blade abuts against the side wall of the connecting sleeve.

8. The high ice class pod propeller with detachable blades according to claim 7, characterized in that: A plurality of first connection holes are arranged on one side of the hub side wall close to the connection disk, and a plurality of second connection holes are arranged on the connection disk. The first connection holes and the second connection holes are detachably connected.

9. The high ice class pod propeller with detachable blades according to claim 8, characterized in that: A sealing ring is arranged between the connecting disk and the hub.

10. The high ice class pod propeller with detachable blades according to claim 6, characterized in that: A sealing sheet is arranged between the blade and the positioning block. The sealing sheet is in an arc-shaped structure. The sealing sheet is attached to the outer side wall of the hub. The size of the sealing sheet is larger than the size of the mounting groove.

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