Maintainable half type axial flow fan for ship

Abstract

The utility model provides a maintainable marine half-type axial flow fan which comprises a machine shell, an impeller module and a driving unit which are independently arranged, and each set can be independently disassembled and replaced. A mounting seat is arranged in the machine shell, a driving unit is fixedly connected to the mounting seat, a driving shaft of the driving unit is connected with an impeller module through a connecting assembly, and the impeller module comprises an impeller shaft and blades. In actual application, if the impeller module or the driving unit is damaged, the whole set of shells does not need to be disassembled, only the fastening nuts need to be unscrewed, the fastening pieces need to be pulled out, the limitation between the connecting ends and the shells is removed, then the connecting pieces need to be unscrewed, the limitation between the connecting bases and the shells is removed, then one set of shells is disassembled, and the connecting ends are opened; and the connecting end part is rotated by 117 degrees towards the V direction, and the inner shell is screwed out, so that the driving unit and the impeller module which are arranged on the mounting seat are driven to be screwed out, and the damaged position of the driving unit or the impeller module is maintained.

Description

Technical Field

[0001] This utility model belongs to the field of marine fan technology, and specifically relates to a maintainable marine axial flow fan with a ventral surface. Background Technology

[0002] With the increasing demand for ventilation in industrial production and various venues, axial flow fans are widely used as an important ventilation device. Marine axial flow fans are ventilation devices specifically designed for ships, mainly used for air circulation and exchange inside the vessel.

[0003] Existing axial flow fans typically have large diameters and long blades. After a period of use, they are prone to wear, especially in special application scenarios such as high-temperature, high-corrosion, and high-dust environments. However, maintaining existing axial flow fans is somewhat inconvenient. If the axial flow fan is damaged, a wrench or electric wrench is required to remove multiple sets of screws on the fan housing before removing the outer casing.

[0004] Using a wrench or electric wrench, multiple sets of screws on the axial fan housing need to be removed in the required sequence to take off the outer casing. Some axial fan housings and pressure roller modules are even welded together, making it difficult to replace damaged internal components, resulting in high maintenance costs and long maintenance times.

[0005] Therefore, how to solve the defects in the above-mentioned technical solutions has become one of the urgent problems to be solved in the field of marine wind turbine technology. Utility Model Content

[0006] In view of the problems existing in the background technology, the present invention provides a maintainable marine axial flow fan, including a housing, an impeller module and a drive unit, each of which can be independently disassembled and replaced; the housing is provided with a mounting base, and the drive unit is fixedly connected to the mounting base; the drive shaft of the drive unit is connected to the impeller module through a connecting component; the impeller module includes an impeller shaft and blades.

[0007] Optionally, the housing is composed of two detachable shells, and an inner shell is provided inside the housing. A distance L of 8mm is provided between the shell and the inner shell.

[0008] The inner shell is provided with a connecting seat integrated therewith, and the connecting seat extends into the groove between two adjacent sets of shells, and the connection between the two sets of shells and the connecting seat is realized by a connector.

[0009] The housing located away from the nozzle is provided with an ear plate, and the connecting seat and the ear plate are movably connected by a hinge connector.

[0010] Optionally, an opening slot is provided on the housing away from the ear plate, and a connecting end is provided on the inner shell located inside the housing. The connecting end extends out of the opening slot and is located outside the housing. A fastener located in the threaded hole of the housing extends into the threaded hole of the connecting end and extends out, and is threadedly connected by a fastening nut.

[0011] Optionally, when the connecting end is in the open state, the connecting end can rotate 30°-117° in the V direction, with a maximum rotation angle of 117°.

[0012] Optionally, the inner shell is semi-circular, and a mounting base is provided inside the inner shell. The mounting base and the inner shell are detachably connected. A drive unit is mounted on the mounting base by a fixed connection. The drive shaft of the drive unit is provided with an impeller module. The impeller module includes an impeller, and the impeller is mounted on the mounting base by a positioning connector.

[0013] Optionally, the connecting component includes a connecting assembly, and the driving shaft of the driving unit is provided with the connecting assembly. The connecting assembly is provided with an impeller seat, and the impeller seat is provided with an impeller shaft. The impeller shaft is provided with an impeller, and the impeller is provided with at least one set of positioning ends. The positioning ends are arc-shaped and match the arc-shaped groove of the blade, and fit tightly together. They are fixedly connected by fastening bolts.

[0014] Optionally, the oil inlet of the drive unit is connected to an oil pipe, and the outlet end of the oil pipe extends out of the housing.

[0015] It is connected to the oil nozzle, which is connected to the oil pipe via a quick-locking component and locked by a lock nut.

[0016] In summary, the beneficial effects of this utility model are:

[0017] This invention disassembles the axial flow fan into independently configured housings, impeller modules, and drive units, each of which can be independently disassembled and replaced, facilitating subsequent maintenance. If an impeller module or drive unit is damaged, it is not necessary to disassemble the entire housing. Simply loosen the fastening nuts, remove the fasteners, and release the constraint between the connecting end and the housing. Then, loosen the connectors to release the constraint between the connecting seat and the housing. Next, remove one housing unit, open the connecting end, and rotate the connecting end 117° in a V-direction to unscrew the inner housing. This allows the drive unit and impeller module mounted on the mounting base to be unscrewed, enabling repair of the damaged area. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of an embodiment of a maintainable marine axial flow fan of the present invention.

[0019] Figure 2 This is a schematic diagram of another orientation of an embodiment of a maintainable marine axial flow fan of the present invention.

[0020] Figure 3 This utility model Figure 2 Enlarged view of the structure at position A in the middle;

[0021] Figure 4 This is a schematic diagram of the oil nozzle position in an embodiment of a maintainable marine axial flow fan of the present invention.

[0022] Figure 5 This is a schematic diagram of the blade connection structure of an embodiment of a maintainable marine axial flow fan according to the present invention.

[0023] Figure label:

[0024] 1. Housing; 01. Shell; 02. Inner shell; 3. Drive unit; 4. Blade; 5. Oil pipe; 6. Connecting end; 7. Fastener; 8. Fastening nut; 091. Connecting seat; 092. Connecting piece; 10. Ear plate; 11. Hinge connector; 12. Oil nozzle; 13. Quick lock; 14. Locking nut; 15. Mounting seat; 16. Connecting assembly; 161. Connecting assembly; 162. Impeller shaft; 163. Positioning connector; 164. Impeller seat; 165. Positioning end; 17. Positioning connector. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. Although exemplary embodiments are disclosed in the drawings, it should be understood that the present utility model can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to facilitate a more thorough understanding of the present utility model and to fully convey the concept of the present utility model to those skilled in the art.

[0026] In the description of this specification, the references to terms such as "certain embodiments," "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0027] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] like Figure 1-5 As shown, this embodiment provides a maintainable marine axial flow fan with a ventilated body. The axial flow fan is divided into several independently configured components: a casing, an impeller module, and a drive unit. Each component can be disassembled and replaced independently, facilitating subsequent maintenance. The casing 1 has a mounting base 15 inside, and the drive unit 3 is fixedly connected to the mounting base 15 by fastening screws or other means. The drive unit 3 includes a reducer and a motor. The drive shaft of the drive unit 3 is connected to the impeller module through a connecting assembly 16. The impeller module includes an impeller shaft 162 and blades 4.

[0029] Furthermore, the oil inlet of the drive unit 3 is connected to the oil pipe 5, and the outlet end of the oil pipe 5 extends out of the housing 1 and is connected to the oil nozzle 12. The oil nozzle 12 is connected to the oil pipe 5 through the quick-locking member 13 and is locked by the locking nut 14.

[0030] In this embodiment, the connection between the nozzle 12 and the oil pipe 5 is achieved through the quick-lock component 13. If the nozzle is damaged, it can be replaced simply by using the quick-lock component 13.

[0031] In practical applications, if the impeller located inside the casing is worn or even damaged and needs replacement, the first choice is to disassemble the casing. Disassembly is cumbersome and inconvenient for maintenance. To solve the above technical problems, please refer to [link to relevant documentation]. Figure 1-4 As shown, the housing 1 is composed of two detachable shells 01, and an inner shell 02 is provided inside the housing 1. A distance L of 8mm is provided between the shell 01 and the inner shell 02.

[0032] The inner shell 02 is provided with a connecting seat 091 integrated therewith, and the connecting seat 091 extends into the groove between two adjacent shells 01, and the connection between the two shells 01 and the connecting seat 091 is realized by the connector 092.

[0033] The housing 01 located away from the oil nozzle 12 is provided with an ear plate 10, and the connecting seat 091 is movably connected to the ear plate 10 by a hinge connector 11.

[0034] Furthermore, an opening slot is provided on the housing 01 located away from the ear plate 10, and a connecting end 6 is provided on the inner shell 02 located inside the housing 01. The connecting end 6 extends out of the opening slot and is located outside the housing 01. The fastener 7 located in the threaded hole of the housing 01 extends into the threaded hole of the connecting end 6 and extends out, and is threadedly connected by a fastening nut 8.

[0035] In this embodiment, if the impeller module or drive unit is damaged, first loosen the fastening nut 8, pull out the fastener 7, and release the restriction between the connecting end 6 and the housing 01. Then loosen the connector 092 to release the restriction between the connecting seat 091 and the housing 01. Then remove one set of housings 01.

[0036] Open the connecting end so that the connecting end can be rotated 30°-117° in the V direction, with a maximum rotation angle of 117°.

[0037] Furthermore, the inner shell 02 is designed in a semi-circular arc shape, and a mounting base 15 is provided inside the inner shell 02. The mounting base 15 is detachably connected to the inner shell 02. The mounting base 15 is fixedly connected to the drive unit 3 by means of fastening screws, etc. The drive shaft of the drive unit 3 is provided with an impeller module, and the impeller module includes an impeller. The impeller is fixedly installed on the mounting base 15 by a positioning connector 17.

[0038] In this embodiment, if the impeller module or drive unit is damaged, it is not necessary to disassemble the entire housing. Simply loosen the fastening nut 8, pull out the fastener 7, release the restriction between the connecting end 6 and the housing 01, then loosen the connector 092, release the restriction between the connecting seat 091 and the housing 01, then remove one set of housings 01, open the connecting end, rotate the connecting end 117° in the V direction, unscrew the inner housing, and then drive the drive unit and impeller module set on the mounting base 15 to unscrew out, so that the damaged part of the drive unit or impeller module can be repaired.

[0039] Furthermore, the connecting component 16 includes a connecting component 161, and the driving shaft of the driving unit 3 is provided with the connecting component 161. The connecting component 161 is provided with an impeller seat 164, and the impeller seat 164 is provided with an impeller shaft 162. The impeller shaft 162 is provided with an impeller, and the impeller is provided with at least one set of positioning ends 165. The positioning ends 165 are arc-shaped and match the arc-shaped groove of the blade 4, and fit tightly. They are fixedly connected by fastening bolts.

[0040] In this embodiment, if one set of blades is damaged and needs to be replaced, it is only necessary to unscrew the fastening bolts and then disassemble the damaged blades individually.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not restrictive. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model do not depart from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A maintainable marine axial flow fan, characterized in that, It includes a housing, impeller module and drive unit, each set of which are independently set, and each set can be disassembled and replaced independently; the housing is provided with a mounting base, and the drive unit is fixedly connected to the mounting base. The drive shaft of the drive unit is connected to the impeller module through a connecting component. The impeller module includes an impeller shaft and blades.

2. A maintainable marine axial flow fan with a ventral surface as described in claim 1, characterized in that, The housing is composed of two detachable housings, and an inner housing is provided inside the housing. A distance L of 8mm is provided between the housing and the inner housing. The inner shell is provided with a connecting seat integrated therewith, and the connecting seat extends into the groove between two adjacent sets of shells, and the connection between the two sets of shells and the connecting seat is realized by a connector. The housing located away from the nozzle is provided with an ear plate, and the connecting seat and the ear plate are movably connected by a hinge connector.

3. A maintainable marine axial flow fan with a ventral surface as described in claim 2, characterized in that, An opening slot is provided on the housing located away from the ear plate. A connecting end is provided on the inner shell located inside the housing. The connecting end extends out of the opening slot and is located outside the housing. A fastener located in the threaded hole of the housing extends into the threaded hole of the connecting end and extends out, and is threadedly connected by a fastening nut.

4. A maintainable marine axial flow fan with a ventral surface as described in claim 3, characterized in that, When the connection end is in the open state, the connection end can rotate 30°-117° in the V direction, with a maximum rotation angle of 117°.

5. A maintainable marine axial flow fan according to claim 2, characterized in that, The inner shell is designed in a semi-circular arc shape. A mounting base is provided inside the inner shell. The mounting base is detachably connected to the inner shell. A drive unit is mounted on the mounting base by a fixed connection. The drive shaft of the drive unit is provided with an impeller module. The impeller module includes an impeller. The impeller is mounted to the mounting base by a positioning connector.

6. A maintainable marine axial flow fan with a ventral surface as described in claim 1, characterized in that, The connecting assembly includes a connecting component, and the driving shaft of the driving unit is provided with the connecting component. The connecting component is provided with an impeller seat, and the impeller seat is provided with an impeller shaft. The impeller shaft is provided with an impeller, and the impeller is provided with at least one set of positioning ends. The positioning ends are arc-shaped and match the arc-shaped groove of the blade, and fit tightly. They are fixedly connected by fastening bolts.

7. A maintainable marine axial flow fan with a ventral surface as described in claim 1, characterized in that, The oil inlet of the drive unit is connected to an oil pipe, and the outlet end of the oil pipe extends out of the housing and is connected to an oil nozzle. The oil nozzle is connected to the oil pipe through a quick-locking component and is locked by a lock nut.

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