Propeller driving assembly of underwater vehicle

Abstract

The utility model relates to a driving assembly, in particular to a propeller driving assembly of an underwater vehicle. A double-bearing structure is characterized in that a propeller driving assembly of an underwater vehicle is fixedly mounted through a sleeve and comprises a motor and the like; a transmission shaft is connected to an output shaft at the bottom of the motor through a coupler, a first bearing seat is mounted on the lower portion of the motor and rotationally connected with the transmission shaft, a flow guide structure is mounted on the lower portion of the motor, a bottom shell is mounted on the lower portion of the flow guide structure, blades are in key connection with the lower portion of the transmission shaft, and power of the motor is transmitted to the blades through the transmission shaft. The transmission shaft can be more stably fixed through the first bearing seat and the second bearing seat, so that the transmission shaft can be more stable during rotation; and the sleeve is in key connection with the transmission shaft and is sleeved on the transmission shaft, so that the blades can be conveniently detached during maintenance.

Description

Technical Field

[0001] This utility model relates to a drive component, and more particularly to a propeller drive component for a submarine. Background Technology

[0002] With the deepening of ocean exploration and development, submersibles have been widely used and developed as important underwater detection and operation tools. Among various types of submersibles, the propeller drive assembly is one of the core components, directly affecting the propulsion efficiency, stability, and operational flexibility of the submersible. Although traditional propeller designs and technologies can meet certain requirements, they still have some limitations when facing complex marine environments and diverse mission requirements.

[0003] Complex installation: Traditional propeller blades usually need to be fixed separately to the output shaft. This design not only increases the difficulty of assembly, but may also cause the blades to loosen due to vibration or corrosion during long-term use, affecting the operational stability of the submersible.

[0004] Structural stability issues: Most existing designs use only a single bearing to support the motor output shaft. Under high load or long-term operation conditions, this can easily lead to output shaft misalignment, thereby reducing the propeller's working efficiency and potentially damaging the motor.

[0005] Therefore, there is an urgent need to develop a propeller drive assembly for submarines with a dual-bearing structure and fixed installation via a sleeve. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, the present invention provides a propeller drive assembly for a submarine with a dual-bearing structure and fixed installation by a sleeve.

[0007] The technical solution is as follows: A propeller drive assembly for a submersible includes a motor, a first bearing housing, a bottom shell, a flow guide structure, a drive shaft, blades, and a mounting base. The output shaft at the bottom of the motor is connected to the drive shaft via a coupling. The first bearing housing is mounted on the lower part of the motor and is rotatably connected to the drive shaft. The flow guide structure is mounted on the lower part of the motor, and the bottom shell is mounted on the lower part of the flow guide structure. Blades are keyed to the lower part of the drive shaft, and a mounting base is installed inside the bottom shell.

[0008] Furthermore, the blade consists of a sleeve and blades, with the sleeve keyed to the drive shaft and blades mounted on the outside of the sleeve.

[0009] Furthermore, the mounting base consists of a second bearing housing, a support inclined plate, and a conical head. The support inclined plate is installed inside the bottom shell, and the second bearing housing is fixedly connected to the middle of the support inclined plate by bolts. The bottom end of the drive shaft is rotatably connected to the second bearing housing, and a conical head is installed at the bottom of the bottom shell.

[0010] Furthermore, the cone-shaped head retracts downwards.

[0011] Furthermore, the contact surface between the supporting inclined plate and the bottom shell is stepped and is snapped into the bottom shell.

[0012] Furthermore, the bottom of the supporting inclined plate is a sheet that is twisted counterclockwise.

[0013] Compared with the prior art, the present invention has the following advantages: the present invention can fix the transmission shaft more stably through the first bearing seat and the second bearing seat, so that the transmission shaft can be more stable when rotating; the sleeve key is connected to the transmission shaft, and the sleeve is fitted on the transmission shaft, which can facilitate the disassembly of the blades during maintenance. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is an exploded view of the present invention.

[0016] Figure 3 This is a three-dimensional structural diagram of the components on the motor of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the impeller and mounting base of this utility model.

[0018] Figure 5 This is an enlarged view of the mounting base of this utility model.

[0019] Reference numerals: 1. Motor, 11. First bearing housing, 2. Bottom shell, 3. Guide structure, 4. Drive shaft, 5. Paddle, 51. Sleeve, 52. Blade, 6. Mounting base, 61. Second bearing housing, 62. Supporting inclined plate, 63. Conical head. Detailed Implementation

[0020] The preferred technical solution of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Example: A propeller drive assembly for a submarine, such as Figures 1-5As shown, the device includes a motor 1, a first bearing housing 11, a base 2, a flow guiding structure 3, a drive shaft 4, blades 5, and a mounting base 6. The output shaft at the bottom of the motor 1 is connected to the drive shaft 4 via a coupling. The first bearing housing 11 is mounted on the lower part of the motor 1 and is rotatably connected to the drive shaft 4. The flow guiding structure 3 is mounted on the lower part of the motor 1, and the base 2 is mounted on the lower part of the flow guiding structure 3. The drive shaft 4 is keyed to the lower part of the drive shaft 4, transmitting power from the motor 1 to the blades 5, allowing the blades 5 to rotate. The blades 5 consist of a sleeve 51 and blades 52. The sleeve 51 is keyed to the drive shaft 4 and fits onto the drive shaft 4, allowing for easy disassembly of the blades 5 during maintenance. Blades 52 are mounted on the outer side of the sleeve 51. The mounting base 6 is installed inside the base 2, and the mounting base 6 is formed by a second bearing housing 61. The submersible consists of a support ramp 62 and a conical head 63. The support ramp 62 is installed inside the bottom shell 2. A second bearing seat 61 is bolted to the middle of the support ramp 62. The first bearing seat 11 and the second bearing seat 61 can more stably fix the drive shaft 4, making the drive shaft 4 more stable when rotating. The bottom end of the drive shaft 4 is rotatably connected to the second bearing seat 61. A conical head 63 is installed at the bottom of the bottom shell 2. The conical head 63 is recessed downward to facilitate the discharge of water from inside the submersible. The contact surface between the support ramp 62 and the bottom shell 2 is stepped and snaps into the bottom shell 2. The stepped structure allows the support ramp 62 to be quickly fixed inside the bottom shell 2. The bottom of the support ramp 62 is a counterclockwise twisted plate. Through this structure, the water flow can be dispersed and the submersible can propel itself better.

[0022] It should be understood that this embodiment is for illustrative purposes only and is not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A propeller drive assembly for a submersible vehicle, characterized by, The utility model relates to a motorized paddle for water conservancy, which comprises a motor (1), a first bearing seat (11), a bottom shell (2), a flow guide structure (3), a transmission shaft (4), a paddle (5) and a mounting seat (6), the output shaft at the bottom of the motor (1) is connected with the transmission shaft (4) through a shaft coupling, the first bearing seat (11) is arranged at the lower part of the motor (1) and is rotationally connected with the transmission shaft (4), the flow guide structure (3) is arranged at the lower part of the motor (1), the bottom shell (2) is arranged at the lower part of the flow guide structure (3), the paddle (5) is keyed to the lower part of the transmission shaft (4), and the mounting seat (6) is arranged in the bottom shell (2).

2. A propeller drive assembly for a submersible as claimed in claim 1, wherein, The paddle (5) is composed of a sleeve (51) and a blade (52), the sleeve (51) is keyed to the transmission shaft (4), and the blade (52) is arranged outside the sleeve (51).

3. A propeller drive assembly for a submersible as claimed in claim 2, wherein, The mounting seat (6) is composed of a second bearing seat (61), a supporting inclined plate (62) and a conical head (63), the supporting inclined plate (62) is arranged in the bottom shell (2), the second bearing seat (61) is fixedly connected to the middle part of the supporting inclined plate (62) through bolts, the bottom end of the transmission shaft (4) is rotationally connected with the second bearing seat (61), and the conical head (63) is arranged at the bottom of the bottom shell (2).

4. A propeller drive assembly for a submersible as claimed in claim 3, wherein, The conical head (63) is recessed downward.

5. A propeller drive assembly for a submersible as claimed in claim 4, wherein, The contact surface between the supporting inclined plate (62) and the bottom shell (2) is stepped and clamped in the bottom shell (2).

6. A propeller drive assembly for an underwater vehicle as claimed in claim 5 wherein, The bottom of the supporting inclined plate (62) is a counterclockwise twisted sheet.

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