Marine axial flow fan

Abstract

The utility model provides a marine axial flow fan, and relates to the technical field of axial flow fans. The axial flow fan for the ship comprises a motor, an impeller, an upper shell, a lower shell and a connecting assembly, the output end of the motor is connected with the impeller, and the motor is arranged on the lower shell; the connecting assembly comprises a locking piece, a first connecting piece, a second connecting piece and a fastening piece, one side of the first connecting piece is connected with the upper shell, one side of the second connecting piece is connected with the lower shell, one end of the locking piece sequentially penetrates through the first connecting piece and the second connecting piece, and the other end of the locking piece penetrates through the fastening piece. The fan has the advantages that the motor and the impeller can be conveniently disassembled and assembled, the whole fan does not need to be disassembled from the air pipe, and the convenience and efficiency of maintenance operation are greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of axial flow fans, and in particular to a marine axial flow fan. Background Art

[0002] Marine axial flow fans are specially designed for ventilation in ship cabins. They can transport air, sea air containing salt mist, corrosive air such as oil mist and small amounts of acid vapor generated by natural evaporation from batteries. These fans are suitable for ventilation of various cabins on board ships, boiler ventilation, and other appropriate applications.

[0003] During the use of axial flow fans, the impeller and motor may become damaged and need to be replaced. Currently, replacing these components usually requires removing the entire fan from the air duct, opening the fan housing, removing the motor and impeller, completing the repair and replacement, and then reinstalling them. This process is not only time-consuming and labor-intensive, but also seriously affects work efficiency. Therefore, a marine axial flow fan is proposed to solve the above problems. Utility Model Content

[0004] In order to improve the working efficiency of replacing and installing the motor impeller of an axial flow fan, the present application provides a marine axial flow fan.

[0005] This application provides a marine axial flow fan, which adopts the following technical solution:

[0006] A marine axial flow fan comprises a motor, an impeller, an upper housing, a lower housing and a connecting assembly, wherein the output end of the motor is connected to the impeller, and the motor is arranged on the lower housing;

[0007] The connecting assembly includes a locking member, a first connecting member, a second connecting member and a fastener. One side of the first connecting member is connected to the upper shell, and one side of the second connecting member is connected to the lower shell. One end of the locking member passes through the first connecting member and the second connecting member in sequence, and the locking member is connected to the first connecting member. The first connecting member and the second connecting member are fitted together. The fastener is threadedly connected to the end of the locking member and fits into the surface of the second connecting member.

[0008] By adopting the above technical solution, the marine axial flow fan can achieve rapid assembly and disassembly of the motor and impeller, simplifying maintenance and improving work efficiency. The design of the connection assembly eliminates the need to completely remove the fan from the air duct during maintenance. By combining the locking member with the first and second connecting members, users can easily complete the fan assembly and disassembly operation, significantly reducing the time and effort required and further improving work efficiency. Furthermore, this structure helps extend the fan's service life and reduces the risk of component damage caused by frequent assembly and disassembly.

[0009] Preferably, the first connecting member is fixedly connected to the fastener and the upper shell.

[0010] By adopting this technical solution, marine axial flow fans can be disassembled and installed more quickly during maintenance and component replacement, effectively saving maintenance time and improving work efficiency. The fixed connection between the first connector, the fastener, and the upper housing enhances the overall stability and structural strength of the fan, thereby improving the fan's reliability and durability during ship cabin ventilation.

[0011] Preferably, a support block is provided between the locking member and the upper shell.

[0012] By adopting this technical solution, a support block is installed between the locking member and the upper housing. This block not only increases the overall structural stability during fan operation, but also provides better support for the upper housing during maintenance, allowing operators to quickly lock and separate related components, simplifying the repair process. This improvement makes marine axial flow fans more efficient and practical in terms of maintenance and overhaul.

[0013] Preferably, one side of the support block is connected to the locking member, and the other side of the support block is in contact with the upper housing, and there are multiple support blocks arranged at equal distances.

[0014] By adopting this technical solution, the installation and maintenance of this marine axial flow fan is more convenient and more efficient. Multiple support blocks are evenly arranged between the locking member and the upper housing, which not only improves the stability of the connection but also enhances the robustness of the overall structure. This makes the fan less likely to loosen during actual use, ensuring reliable operation and making assembly and disassembly during maintenance more stable.

[0015] Preferably, a limiting groove is provided on the first connecting member, and a limiting block adapted to the limiting groove is fixed on the second connecting member.

[0016] By adopting the above technical solution, the limiting groove on the first connecting member and the limiting block on the second connecting member cooperate with each other, thereby improving the stability of the connecting component during the assembly process, ensuring the overall structural strength of the connecting component, and preventing loosening between the first connecting member and the second connecting member due to vibration.

[0017] Preferably, the end of the locking member is rod-shaped and has an outer wall provided with a thread, and the inner wall of the fastener is provided with an internal thread that matches the outer thread of the locking member.

[0018] By adopting the above technical solution, the inner wall of the fastener is provided with an internal thread structure that is compatible with the external thread of the locking member, so that the locking effect of the connecting assembly is more reliable, and it is convenient to maintain or replace the motor and impeller without disassembling the entire fan, thereby improving maintenance efficiency and simplifying the operation steps.

[0019] Preferably, a reinforcement component is provided between the first connecting member and the fastener, and the reinforcement component includes a blocking rod and a moving rod;

[0020] One side of the blocking rod is hinged to the first connecting piece, the moving rod is connected to one end of the fastener, and a positioning groove adapted to the blocking rod is provided on a side of the moving rod away from the fastener.

[0021] By adopting the above technical solution, the reinforcement assembly further stabilizes the connection between the first connector and the fastener, effectively improving the reliability of the overall structure. Furthermore, the coordination between the retaining rod and the positioning slot further enhances the stability of the connection, reducing loosening caused by vibration during use. This improves the operational stability of the marine axial flow fan in complex environments, simplifies maintenance, and improves work efficiency.

[0022] Preferably, the reinforcement assembly further includes a spring, and two ends of the spring are respectively connected to one side of the blocking rod and one side of the first connecting member.

[0023] By adopting the above technical solution, the spring in the reinforcement assembly is arranged between the barrier rod and the first connecting member, which can effectively enhance the stability of the overall structure, so that when the fan is replaced and repaired, the connection between the first connecting member and the fastener is more secure, thereby improving the reliability of the fan during operation.

[0024] In summary, this application has at least one of the following beneficial effects:

[0025] 1. Through the design of the connection components, the lower housing can be removed for maintenance of the motor and impeller by simply removing the fasteners, further realizing the convenient disassembly and assembly of the motor and impeller without removing the entire fan from the air duct, greatly improving the convenience and efficiency of maintenance operations;

[0026] 2. The combined use of locking parts and fasteners makes the connection between the upper and lower shells more stable and reliable, improving the firmness of the overall structure of the fan while also facilitating the disassembly and assembly of the fan;

[0027] 3. The support block enhances the mechanical strength of the connection components, which helps to improve the stability and reliability of the fan during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1It is a schematic diagram of the overall structure of an embodiment of the present application;

[0029] Figure 2 This is an embodiment of the present application Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 3 This is a schematic diagram of the structure of the connection group of the embodiment of the present application;

[0031] Figure 4 This is an embodiment of the present application Figure 3 Schematic diagram of the enlarged structure at B in the middle;

[0032] Figure 5 It is a schematic diagram of the connection structure of the blocking rod and the positioning groove in an embodiment of the present application.

[0033] Explanation of the accompanying drawings: 1. Motor; 2. Impeller; 3. Upper shell; 4. Lower shell; 5. Connecting assembly; 51. Locking member; 52. First connecting member; 53. Second connecting member; 54. Fastener; 6. Support block; 7. Limiting groove; 8. Limiting block; 9. Reinforcement assembly; 91. Stop rod; 92. Moving rod; 93. Positioning groove; 94. Spring; 10. Support frame. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-5 This application is described in further detail.

[0035] Example:

[0036] An embodiment of the present application provides a marine axial flow fan.

[0037] refer to Figure 1-2 The marine axial flow fan includes a motor 1, an impeller 2, an upper shell 3, a lower shell 4, a connecting assembly 5, a limiting groove 7, a limiting block 8 and a reinforcement assembly 9. The output end of the motor 1 is connected to the impeller 2, and the output end of the motor 1 is connected to the impeller 2. The motor 1 is installed on the lower shell 4. The inner bottom wall of the lower shell 4 is fixed with a support frame 10. The support frame 10 is fixedly connected to the motor 1. The upper shell 3 is connected to the air duct. The limiting groove 7 is opened on the upper shell 3 and is slidably connected to the limiting block 8 fixedly connected to the limiting groove 7, ensuring that the upper shell 3 and the lower shell 4 can be accurately aligned during installation and effectively preventing offset during the installation process, thereby ensuring installation accuracy and stability, thereby realizing rapid installation and disassembly of the motor 1 and the impeller 2, achieving the effect of improving work efficiency and shortening maintenance time, and effectively solving the problem of inconvenient fan maintenance in the prior art.

[0038] refer to Figure 2-3The connection assembly 5 includes a locking member 51, a first connection member 52, a second connection member 53, and a fastener 54. The fastener 54 is in contact with the surface of the second connection member 53. A reinforcement assembly 9 is provided between the first connection member 52 and the fastener 54. One side of the first connection member 52 is connected to the upper housing 3, and one side of the second connection member 53 is connected to the lower housing 4. One end of the locking member 51 passes through the first connection member 52 and the second connection member 53 in sequence, and the first connection member 52 and the second connection member 53 are in contact.

[0039] The end of the locking member 51 is rod-shaped and has threads on its outer wall. The inner wall of the fastener 54 is provided with internal threads that match the external threads of the locking member 51. The fastener 54 can be a nut. The cross-section of the locking member 51 can be U-shaped and made of high-strength steel or stainless steel, which has high corrosion resistance and strength. The fastener 54 is threadedly connected to the external threads on the end of the locking member 51 and mates with the surface of the second connecting member 53. The first connecting member 52 and the second connecting member 53 each include a support plate and a connecting plate, both of which are of an integrated design. The support plate is fixedly connected to the housing by bolts or welding. The support plate is typically a rectangular plate structure made of stainless steel or high-strength aluminum alloy, which has good corrosion resistance and rigidity. The connecting plate is used to provide a through hole for the locking member 51.

[0040] The first connector 52 is fixedly connected to the fastener 54 and the upper housing 3. A support block 6 is disposed between the locking member 51 and the upper housing 3. One side of the support block 6 is connected to the locking member 51, and the other side of the support block 6 is in contact with the upper housing 3. Multiple support blocks 6 are arranged equidistantly and can be made of stainless steel or aluminum alloy. Their specific dimensions are adjusted according to the connector design, and their width is determined by the diameter of the locking member 51. By increasing the number of support blocks 6 and optimizing their layout, the overall load-bearing strength and reliability of the connector can be significantly improved, reducing the risk of deformation due to uneven external forces.

[0041] refer to Figure 4-5 The reinforcement assembly 9 includes a retaining rod 91, a movable rod 92, and a spring 94. One side of the retaining rod 91 is hingedly connected to the first connecting member 52. Its length and cross-sectional area can be adjusted according to actual needs, and it typically adopts a rod-shaped structure with a circular or rectangular cross-section. The movable rod 92 is connected to one end of the fastener 54. A positioning slot 93 is defined on the side of the movable rod 92 away from the fastener 54, which is compatible with the retaining rod 91. The ends of the spring 94 are respectively connected to one side of the retaining rod 91 and one side of the first connecting member 52. Its elastic force enables the retaining rod 91 to automatically reset. The spring 94 is preferably made of stainless steel wire, which has excellent elasticity and corrosion resistance.

[0042] Through the cooperation between the moving rod 92 and the blocking rod 91, when the fastener 54 is about to fit with the second connecting member 53, the blocking rod 91 is moved. At this time, the spring 94 has a certain elastic force. When the fastener 54 fits with the second connecting member 53, the elastic force of the spring 94 is retracted, and the blocking rod 91 is reset, so that the outer wall of the blocking rod 91 fits with the inner wall of the positioning groove 93. At this time, the movement of the fastener 54 along the locking member 51 can be restricted, so that the reinforcement component 9 can provide additional support, making the connecting component 5 more firm and reliable.

[0043] The implementation principle of a marine axial flow fan in the embodiment of the present application is as follows:

[0044] By designing a unique quick-disassembly structure, the lower shell 4 can be removed to repair the motor 1 and the impeller 2 by simply removing the fasteners 54, so that the motor 1 and the impeller 2 can be easily replaced without disassembling the entire fan, optimizing the traditional fixed installation method, reducing tedious disassembly and assembly steps, and improving work efficiency. The connection component 5 has been analyzed and optimized in detail, and at the same time, the stability and service life of the entire structure have been improved by adding support blocks 6, limit slots 7, limit blocks 8 and reinforcement components 9.

[0045] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A marine axial flow fan, characterized in that: It comprises a motor (1), an impeller (2), an upper housing (3), a lower housing (4), and a connecting assembly (5), wherein the output end of the motor (1) is connected to the impeller (2), and the motor (1) is arranged on the lower housing (4); The connecting assembly (5) comprises a locking member (51), a first connecting member (52), a second connecting member (53) and a fastener (54); One end of the locking member (51) passes through the first connecting member (52) and the second connecting member (53) in sequence, the first connecting member (52) and the second connecting member (53) are fitted together, one side of the first connecting member (52) is connected to the upper shell (3), and one side of the second connecting member (53) is connected to the lower shell (4), and the fastener (54) is threadedly connected to the end of the locking member (51) and fits together with the surface of the second connecting member (53).

2. A marine axial flow fan according to claim 1, characterized in that: The first connecting member (52), the fastening member (54) and the upper shell (3) are all fixedly connected.

3. A marine axial flow fan according to claim 2, characterized in that: A support block (6) is provided between the locking member (51) and the upper housing (3).

4. A marine axial flow fan according to claim 3, characterized in that: One side of the support block (6) is connected to the locking member (51), and the other side of the support block (6) is in contact with the upper housing (3). The support blocks (6) are multiple and arranged at equal distances.

5. A marine axial flow fan according to any one of claims 1 to 4, characterized in that: A limiting groove (7) is provided on the upper shell (3), and a limiting block (8) adapted to the limiting groove (7) is fixed on the lower shell (4).

6. A marine axial flow fan according to claim 1, characterized in that: The end of the locking member (51) is rod-shaped and has a thread on its outer wall, and the inner wall of the fastener (54) is provided with an inner thread that matches the outer thread of the locking member (51).

7. A marine axial flow fan according to claim 5, characterized in that: A reinforcement assembly (9) is provided between the first connecting member (52) and the fastener (54), and the reinforcement assembly (9) includes a blocking rod (91) and a moving rod (92); One side of the blocking rod (91) is hinged to the first connecting member (52), the moving rod (92) is connected to one end of the fastener (54), and a positioning groove (93) adapted to the blocking rod (91) is provided on a side of the moving rod (92) away from the fastener (54).

8. A marine axial flow fan according to claim 7, characterized in that: The reinforcement assembly (9) further includes a spring (94), with two ends of the spring (94) respectively connected to one side of the blocking rod (91) and one side of the first connecting member (52).

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