Pod propulsor shell with reliably installed motor

Abstract

The utility model relates to the technical field of pod shells, and discloses a pod propeller shell reliable in motor installation, which comprises a pod shell, a motor installation cabin is arranged at the bottom of the pod shell, a plurality of annular frameworks are arranged in the motor installation cabin, and motors are fixedly connected in the annular frameworks. A plurality of rib plates are fixedly connected into the pod shell, an air outlet channel is formed among the rib plates, an air inlet channel is formed by the rib plates and the inner wall of the pod shell, the bottom of the air outlet channel is located at the top of the motor, the bottom of the air inlet channel is located at the two ends of the motor, and cooling air enters from the outer space above the pod shell. After flowing into the motor mounting cabin along the air inlet channel, the air enters a gap between silicon steel plates of the motor from two sides of the motor, flows out from the middle of the motor after being cooled, passes through the air outlet channel at the upper part of the shell, is pumped away by an external fan and is circulated, so that the contact area is large, the air inlet and outlet cooling path is short, and the cooling efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of pod housing technology, specifically a pod propulsion housing with reliable motor mounting. Background Technology

[0002] Podded propulsion systems are widely used in various types of ships due to their advantages such as high efficiency, low vibration, and energy saving.

[0003] The underwater hull of a podded propulsion system typically consists of a hull connecting hull and a propulsion hull. Core components such as the propulsion motor and propulsion drive shaft are housed within the propulsion hull. Therefore, the reliability and ease of installation of key components like the motor within the underwater hull are crucial factors that must be considered in the hull design.

[0004] Regarding the existing related technologies, the inventors believe that the following defects exist: the motor installation method of the traditional pod shell is to fit the motor body into the cylindrical shell and then fix it by welding; the cooling method is to use cold air to enter from the left and exit from the right, which has low cooling efficiency and is difficult to install and transport. Utility Model Content

[0005] To address the technical problems of existing cooling methods that use cold air to enter from the left and exit from the right, which result in low cooling efficiency and difficulties in installation and transportation, this utility model provides a pod propulsion housing with reliable motor installation.

[0006] This utility model is achieved using the following technical solution: a pod propulsion housing with reliable motor mounting, comprising a pod housing, a motor mounting compartment at the bottom of the pod housing, multiple annular frames inside the motor mounting compartment, motors fixedly connected inside the multiple annular frames, multiple stiffening plates fixedly connected inside the pod housing, an air outlet channel formed between the multiple stiffening plates, an air inlet channel formed between the multiple stiffening plates and the inner wall of the pod housing, an operating platform fixedly connected to the bottom of the pod housing, and two auxiliary studs on the outer sides of the motor mounting compartment.

[0007] Preferably, the bottom of the air outlet duct is located at the top of the motor, and the bottom of the air inlet duct is located at both ends of the motor.

[0008] Preferably, the annular skeleton has multiple circumferential keyways machined inside.

[0009] Preferably, the motor mounting compartment has two first manholes on both sides, and the motor mounting compartment has an auxiliary hole connected inside, which is located at one end of the motor.

[0010] Preferably, the operating platform has multiple ventilation holes in the middle and two operating channels at both ends.

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

[0012] In use, this utility model employs a pod-like casing to fix the motor, allowing cooling air to enter the motor air gap from both sides, thereby improving cooling efficiency.

[0013] When using this invention, after the motor is installed in place, the circumferential keyway is installed, and finally the two ends of the motor are welded to the ring frame, the torque transmission performance and impact resistance of the motor can be further improved, which is conducive to improving the service life of the motor.

[0014] In use, this utility model uses four auxiliary studs on both sides of the pod to position the pod shell during transportation, thereby facilitating transportation and installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cooling airflow direction inside the pod shell of this utility model;

[0017] Figure 3 This is a sectional view of the pod shell of this utility model;

[0018] Figure 4 This is a schematic diagram of the motor mounting compartment and the annular frame structure of this utility model;

[0019] Figure 5 This is a cross-sectional view of the operating platform of this utility model.

[0020] In the diagram: 1. Pod shell; 2. Motor mounting compartment; 3. Motor; 4. Annular frame; 5. Air outlet duct; 6. Air inlet duct; 7. Operating platform; 8. Auxiliary studs; 9. Operating channel; 10. Circumferential keyway; 11. Auxiliary hole; 12. First manhole; 13. Ventilation hole. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] Example 1: Please refer to Figure 1 - Figure 5This embodiment provides a reliable motor mounting pod propulsion housing, including a pod housing 1. A motor mounting compartment 2 is provided at the bottom of the pod housing 1. Multiple annular frames 4 are provided inside the motor mounting compartment 2. A motor 3 is fixedly connected inside the multiple annular frames 4. Multiple stiffening plates are fixedly connected inside the pod housing 1. An air outlet channel 5 is formed between the multiple stiffening plates. An air inlet channel 6 is formed between the multiple stiffening plates and the inner wall of the pod housing 1. The bottom of the air outlet channel 5 is located at the top of the motor 3, and the bottom of the air inlet channel 6 is located at both ends of the motor 3.

[0023] The upper part of the pod shell 1 is divided into two spaces, an inner and outer air outlet channel 5 and an air inlet channel 6, by internally welded stiffening plates. The motor 3 is installed on the annular frame 4 inside the motor mounting compartment 2. The annular frames 4 are interconnected. Cooling air enters from the external space above the pod shell 1, flows into the interior of the motor mounting compartment 2 through the air inlet channel 6, and then enters the gap between the silicon steel plates of the motor 3 from both sides. After cooling, it flows out from the middle of the motor 3, passes through the air outlet channel 5 at the top of the shell, and is drawn away by the external fan for circulation. This method has a large contact area and a short air inlet and outlet cooling path, which greatly improves the cooling efficiency.

[0024] Furthermore, the motor installation in the motor mounting compartment 2 is not a complete sleeve of the cylindrical shell, but is designed with an annular frame 4 inside the shell. The number of annular frames 4 is evenly distributed according to the length of the motor 3. In addition, the inner diameter of the annular frames 4 is not equal, but arranged in a stepped shape, forming a tapered shape as a whole. Thus, the annular frames 4 play a guiding and centering role when the motor 3 is installed, and at the same time strengthen the shell.

[0025] Among them, by setting circumferential keyways 10 on the annular frame 4 to transmit torque, since the motor inside the motor mounting compartment 2 is a high-power motor with a large torque transmission, in order to ensure reliability, after the motor 3 is installed in place, six circumferential keyways 10 are evenly arranged on the circumference of the mounting annular frame 4. After the motor 3 is installed in place, the circumferential keyways 10 are installed, and finally the two ends of the motor 3 are welded to the annular frame 4. This can further improve the torque transmission performance and impact resistance of the motor, which is conducive to improving the service life of the motor 3.

[0026] Furthermore, an operating platform 7 is fixedly connected to the bottom of the inner side of the pod shell 1, and two auxiliary studs 8 are provided on the outer sides of the motor mounting compartment 2. The auxiliary studs 8 on both sides of the compartment are used for positioning during transportation.

[0027] Furthermore, two first manholes 12 are opened on both sides of the motor mounting compartment 2, and an auxiliary hole 11 is provided inside the motor mounting compartment 2. The auxiliary hole 11 is located at one end of the motor 3. Multiple ventilation holes 13 are opened in the middle of the operating platform 7, and two operating channels 9 are opened at both ends of the operating platform 7.

[0028] The pod housing 1 has an operating platform 7 inside, and the motor mounting compartment 2 has two first manholes 12 on the outside. There are auxiliary holes 11 on the internal stiffeners of the motor mounting compartment 2. At the same time, the operators can conveniently inspect or repair the circuits and oil circuits inside the pod housing 1 from the operating platform 7. The motor part is located below the operating platform 7, and personnel can enter from the operating passage 9 to work below. The auxiliary holes 11 on the stiffeners can be used to assist in hoisting small parts or fixing lines, thereby greatly improving the convenience of installation and maintenance.

[0029] Working principle: The motor 3 is fixed by the pod housing 1, which allows cooling air to enter the motor air gap from both sides of the motor 3, improving cooling efficiency; the design of the circumferential keyway 10 can prevent the motor 3 from loosening after long-term operation, improving stability, reliability and service life. During transportation, the auxiliary studs 8 on the outside of the motor mounting compartment 2 are used for fixation, which facilitates transportation.

[0030] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A podded thruster housing with reliable motor mounting, comprising a podded housing (1), characterized in that, The bottom of the pod housing (1) is provided with a motor mounting compartment (2). The motor mounting compartment (2) is provided with multiple annular frames (4). The motors (3) are fixedly connected inside the multiple annular frames (4). The pod housing (1) is fixedly connected with multiple stiffeners. An air outlet channel (5) is formed between the multiple stiffeners. An air inlet channel (6) is formed between the multiple stiffeners and the inner wall of the pod housing (1). An operating platform (7) is fixedly connected to the bottom of the pod housing (1). Two auxiliary studs (8) are provided on the outer sides of the motor mounting compartment (2).

2. The pod propulsion housing with reliable motor mounting according to claim 1, characterized in that, The bottom of the air outlet channel (5) is located at the top of the motor (3), and the bottom of the air inlet channel (6) is located at both ends of the motor (3).

3. The pod propulsion housing with reliable motor mounting according to claim 1, characterized in that, The annular skeleton (4) has multiple circumferential keyways (10) machined inside.

4. The pod propulsion housing with reliable motor mounting according to claim 1, characterized in that, Two first manholes (12) are provided on both sides of the motor mounting compartment (2), and an auxiliary hole (11) is provided inside the motor mounting compartment (2). The auxiliary hole (11) is located at one end of the motor (3).

5. A pod propulsion housing with reliable motor mounting according to claim 1, characterized in that, The operating platform (7) has multiple ventilation holes (13) in the middle and two operating channels (9) at both ends.

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