Large-air-output centrifugal fan capable of being telescopically overhauled

Abstract

The utility model relates to the technical field of centrifugal fans, and discloses a telescopic overhaul type large-air-volume centrifugal fan, which solves the problem that the overhaul and ash removal are affected due to the fact that the existing centrifugal fan is inconvenient to disassemble and assemble, and comprises a supporting base, a machine shell is fixedly arranged at one end of the top of the supporting base, and a fan cover is fixedly arranged at the other end of the top of the supporting base. A limiting sliding groove is formed in the end, away from the machine shell, of the top of the supporting base, a lead screw is rotationally arranged in the limiting sliding groove, an inner hexagonal connector is fixedly arranged at one end of the lead screw, a motor clamping sleeve is slidably arranged in the limiting sliding groove, the lead screw is sleeved with the motor clamping sleeve, and the motor clamping sleeve is in threaded connection with the lead screw. A detachable clamping cover is fixedly arranged at the end, close to the machine shell, of the outer surface of the motor, an inserting ring connected with the detachable clamping cover is fixedly arranged at one end of the machine shell, and centrifugal blades are fixedly arranged on an output shaft of the motor. By means of the centrifugal fan with the large air output, the disassembly and assembly convenience can be improved, and then the maintenance and ash removal convenience is improved.

Description

Technical Field

[0001] This utility model belongs to the field of centrifugal fan technology, specifically a retractable and maintenance-type centrifugal fan with a large air volume. Background Technology

[0002] High-volume centrifugal fans are widely used for ventilation, dust removal, and cooling in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings. After a certain period of use, some dust will enter the interior of these fans. This dust adheres to the surface of the centrifugal impeller, affecting the exhaust efficiency. Therefore, regular dust removal and cleaning are necessary. When the fan malfunctions, disassembly and repair are also required. However, existing high-volume centrifugal fans are inconvenient to disassemble and assemble, affecting the ease of cleaning dust inside the fan and the convenience of maintenance. Therefore, this application proposes a retractable, maintenance-friendly high-volume centrifugal fan. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a retractable and maintenance-type centrifugal fan with a large air volume, which effectively solves the problem that the existing centrifugal fans are inconvenient to disassemble and assemble, thus affecting maintenance and dust removal.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a retractable and maintenance-type high-volume centrifugal fan, comprising a support base, a housing fixedly mounted at one end of the top of the support base, a limiting groove formed at the end of the top of the support base away from the housing, a lead screw rotatably mounted inside the limiting groove, an internal hexagonal connector fixedly mounted at one end of the lead screw, a motor sleeve slidably mounted inside the limiting groove, the motor sleeve being fitted onto the lead screw and threadedly connected to the lead screw, a motor fixedly mounted inside the motor sleeve, a detachable retainer fixedly mounted at the end of the outer surface of the motor near the housing, a plug ring fixedly mounted at one end of the housing and connected to the detachable retainer, and centrifugal blades fixedly mounted on the output shaft of the motor.

[0005] Preferably, one side of the detachable cover has an insertion groove that matches the insertion ring, and the inner surface of the insertion groove is provided with a sealing gasket. The middle position of the other end of the detachable cover has an installation groove that matches the motor, and the detachable cover is welded to the outer shell of the motor.

[0006] Preferably, the detachable cover has a plurality of locking knobs on its arc-shaped outer surface, and the plug ring has a plurality of threaded holes that match the locking knobs on its arc-shaped outer surface.

[0007] Preferably, the bottom ends of both sides of the motor sleeve are fixedly provided with positioning sliders that are slidably connected to the limiting slide groove.

[0008] Preferably, one end of the support base is provided with a strip-shaped end plate, which is fixedly connected to the support base by several bolts, and the lead screw is rotatably connected to both the strip-shaped end plate and the support base by bearings.

[0009] Preferably, bolt mounting holes are provided at the four corners of the top of the support base, and the housing and the support base are connected by welding through several supports. An air inlet is provided at the end of the housing away from the motor, and an exhaust port is fixedly provided on one side of the housing.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] (1) In operation, by setting limit grooves, screws, internal hexagonal joints, motor sleeves, detachable clips and plug rings, the convenience of installation and disassembly can be improved. The detachable clips can be separated from the casing, allowing the centrifugal blades to be moved out from inside the casing, thereby improving the convenience of maintenance and dust removal. By setting plug grooves, sealing gaskets, locking knobs and threaded holes, the sealing and stability of the connection between the detachable clips and the casing can be improved.

[0012] (2) By setting the strip end plate and bolts, the motor jacket can be installed and disassembled. By setting the bolt mounting holes, the support base can be fixedly connected by bolts. By setting the bearing, the mobility of the connection between the screw and the strip end plate and the support base can be improved. By setting the support, the stability of the housing can be improved. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram:

[0015] Figure 1 This is one of the structural schematic diagrams of the retractable and maintenance-type large-volume centrifugal fan of this utility model;

[0016] Figure 2 This is the second schematic diagram of the retractable and maintenance-type large-volume centrifugal fan of this utility model;

[0017] Figure 3 This is a partial structural diagram of the retractable and maintenance-type large-volume centrifugal fan of this utility model;

[0018] Figure 4 This is a schematic diagram of the detachable cover structure of this utility model;

[0019] In the diagram: 1. Support base; 2. Housing; 3. Limiting groove; 4. Lead screw; 5. Socket head cap; 6. Motor sleeve; 7. Motor; 8. Removable cover; 9. Plug-in ring; 10. Centrifugal blade; 11. Plug-in inner groove; 12. Sealing gasket; 13. Mounting groove; 14. Locking knob; 15. Threaded hole; 16. Positioning slider; 17. Strip end plate; 18. Bolt; 19. Bearing; 20. Bolt mounting hole; 21. Support; 22. Air inlet; 23. Air outlet. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Depend on Figures 1 to 4 The present invention discloses a retractable and maintenance-type high-volume centrifugal fan, comprising a support base 1, a housing 2 fixedly mounted on one end of the top of the support base 1, a limiting groove 3 formed at the end of the top of the support base 1 away from the housing 2, a lead screw 4 rotatably mounted inside the limiting groove 3, an internal hexagonal connector 5 fixedly mounted on one end of the lead screw 4, a motor sleeve 6 slidably mounted inside the limiting groove 3, the motor sleeve 6 being sleeved on the lead screw 4 and threadedly connected to the lead screw 4, a motor 7 fixedly mounted inside the motor sleeve 6, a detachable retainer 8 fixedly mounted on the outer surface of the motor 7 near the housing 2, a plug ring 9 fixedly mounted on the end of the housing 2 and connected to the detachable retainer 8, and centrifugal blades 10 fixedly mounted on the output shaft of the motor 7.

[0022] When it is necessary to inspect and clean the inside of the centrifugal fan, first release the detachable cover 8 and the plug ring 9 from the limit. Then, use a hex wrench to drive the internal hex connector 5 to rotate. The internal hex connector 5 drives the lead screw 4 to rotate. The lead screw 4 drives the motor sleeve 6 to slide inside the limit groove 3. The motor sleeve 6 drives the motor 7 to move. The motor 7 drives the detachable cover 8 and the centrifugal blades 10 to move synchronously, so that the centrifugal blades 10 are moved out of the inside of the casing 2, thereby improving the convenience of inspection and cleaning.

[0023] The side of one end of the detachable cover 8 is provided with a plug-in inner groove 11 that matches the plug-in ring 9. A sealing gasket 12 is provided on the inner surface of the plug-in inner groove 11. The middle position of the other end of the detachable cover 8 is provided with a mounting groove 13 that matches the motor 7. The detachable cover 8 is welded to the outer shell of the motor 7.

[0024] The inner groove 11 can be inserted into the plug ring 9 to form a limiting function, and the sealing gasket 12 can improve the sealing performance of the connection between the removable cover 8 and the plug ring 9.

[0025] The detachable cover 8 has several locking knobs 14 on its arc-shaped outer surface, and the plug ring 9 has several threaded holes 15 that match the locking knobs 14 on its arc-shaped outer surface, which can improve the stability of the connection between the detachable cover 8 and the plug ring 9.

[0026] The bottom ends of both sides of the motor sleeve 6 are fixedly provided with positioning sliders 16 that are slidably connected to the limiting slide groove 3, which can form a limiting function with the limiting slide groove 3;

[0027] One end of the support base 1 is provided with a strip end plate 17. The strip end plate 17 is fixedly connected to the support base 1 by several bolts 18. The lead screw 4 is rotatably connected to both the strip end plate 17 and the support base 1 by bearings 19.

[0028] The strip end plate 17 can be detached from the support base 1, thereby enabling the installation and removal of the motor clamp 6. The bearing 19 can improve the mobility of the connection between the lead screw 4 and the strip end plate 17 and the support base 1.

[0029] Bolt mounting holes 20 are provided at the four corners of the top of the support base 1. The housing 2 and the support base 1 are welded together by several supports 21, which can improve the stability of the connection between the housing 2 and the support base 1. An air inlet 22 is provided at the end of the housing 2 away from the motor 7, and an exhaust port 23 is fixedly provided on one side of the housing 2, which can realize air intake and exhaust.

[0030] In operation, the inclusion of limit grooves, lead screws, internal hexagonal joints, motor sleeves, removable retaining covers, and plug-in rings enhances the ease of installation and disassembly. The removable retaining cover can be separated from the casing, allowing the centrifugal blades to be removed from the casing, thus improving maintenance and dust removal convenience. The inclusion of plug-in grooves, sealing gaskets, locking knobs, and threaded holes improves the sealing and stability of the connection between the removable retaining cover and the casing. The inclusion of strip end plates and bolts facilitates the installation and disassembly of the motor sleeve. Bolt mounting holes allow for the bolted connection of the support base. Bearings improve the mobility of the connection between the lead screw, strip end plates, and support base. Finally, the inclusion of supports enhances the stability of the casing.

Claims

1. A retractable and maintenance-friendly high-volume centrifugal fan, comprising a support base (1), characterized in that: A housing (2) is fixedly installed at one end of the top of the support base (1). A limiting groove (3) is opened at the end of the top of the support base (1) away from the housing (2). A lead screw (4) is rotatably installed inside the limiting groove (3). An internal hexagonal connector (5) is fixedly installed at one end of the lead screw (4). A motor sleeve (6) is slidably installed inside the limiting groove (3). The motor sleeve (6) is fitted onto the lead screw (4) and threadedly connected to the lead screw (4). A motor (7) is fixedly installed inside the motor sleeve (6). A detachable cover (8) is fixedly installed at the end of the outer surface of the motor (7) near the housing (2). A plug ring (9) connected to the detachable cover (8) is fixedly installed at one end of the housing (2). Centrifugal blades (10) are fixedly installed on the output shaft of the motor (7).

2. The retractable, maintenance-friendly, high-volume centrifugal fan according to claim 1, characterized in that: The side of one end of the detachable cover (8) is provided with a plug-in inner groove (11) that matches the plug-in ring (9). A sealing gasket (12) is provided on the inner surface of the plug-in inner groove (11). The middle position of the other end of the detachable cover (8) is provided with a mounting groove (13) that matches the motor (7). The detachable cover (8) is welded to the outer shell of the motor (7).

3. The retractable, maintenance-friendly, high-volume centrifugal fan according to claim 1, characterized in that: The detachable cover (8) has several locking knobs (14) on its arc-shaped outer surface, and the plug ring (9) has several threaded holes (15) that match the locking knobs (14) on its arc-shaped outer surface.

4. A retractable, maintenance-friendly, high-volume centrifugal fan according to claim 1, characterized in that: The bottom ends of both sides of the motor sleeve (6) are fixedly provided with positioning sliders (16) that are slidably connected to the limiting slide groove (3).

5. A retractable, maintenance-friendly, high-volume centrifugal fan according to claim 1, characterized in that: One end of the support base (1) is provided with a strip end plate (17), and the strip end plate (17) is fixedly connected to the support base (1) by several bolts (18). The lead screw (4) is rotatably connected to the strip end plate (17) and the support base (1) by bearings (19).

6. A retractable, maintenance-friendly, high-volume centrifugal fan according to claim 1, characterized in that: Bolt mounting holes (20) are provided at the four corners of the top of the support base (1). The housing (2) and the support base (1) are welded together by several supports (21). An air inlet (22) is provided at the end of the housing (2) away from the motor (7). An exhaust port (23) is fixedly provided on one side of the housing (2).

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