Centrifugal fan convenient for on-vehicle maintenance

Abstract

The utility model relates to centrifugal fan field, concretely relates to a centrifugal fan convenient to on -vehicle maintenance, install in the sanitation car, including fan structure, fan structure include volute, driving motor and access door, driving motor install driving motor outside access door, the motor main shaft of driving motor passes through access door and is equipped with impeller, the rotatable installation of access door on volute, the impeller of fan structure's difficult dismounting and the existence of security risk of present stage have been solved, the frequency of fan overhaul is high in the service life of sanitation car, and the on -vehicle maintenance difficulty of centrifugal fan has been plaguing the user's problem all the time.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal fans, specifically to a centrifugal fan that is easy to maintain on a vehicle. Background Technology

[0002] Currently, centrifugal fans installed on sanitation vehicles mainly consist of a volute, impeller, and drive shaft. The impeller is hidden inside the volute, and the wear of the volute is from the inside out. Because the impeller obstructs the view, it is inconvenient to observe the wear inside the volute. Currently, if the impeller needs to be repaired or the wear inside the volute needs to be checked, the fan body needs to be lifted and the impeller removed. The impeller removal of the existing fan structure is difficult and poses a safety hazard. The fan maintenance frequency is high during the service life of the sanitation vehicle, and the difficulty of maintaining the centrifugal fan on the vehicle has always been a problem for users.

[0003] In summary, a centrifugal fan that is easy to maintain on-board is proposed to solve the aforementioned problems. Utility Model Content

[0004] The purpose of this utility model is to provide a centrifugal fan that is easy to maintain on the vehicle, which solves the problems of difficult impeller disassembly and safety hazards in the current fan structure, high fan maintenance frequency during the service life of sanitation vehicles, and difficulty in maintaining centrifugal fans on the vehicle.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A centrifugal fan that is easy to maintain on-vehicle is installed inside a sanitation vehicle and includes a fan structure. The fan structure includes a volute, a drive motor, and an inspection door. The drive motor is installed on the outside of the inspection door. The motor shaft of the drive motor passes through the inspection door and is equipped with an impeller. The inspection door is rotatably mounted on the volute.

[0007] Further, it also includes a fan frame, which is divided into two parts, one part of which is installed on the inspection door and the other part of which is installed on the volute.

[0008] Further specifying, the volute is hollow inside, and a through hole is provided on the volute, the size of which matches the size of the impeller.

[0009] Further specified, the cavity of the volute is fixedly provided with an inner rubber lining and an air inlet, the inner rubber lining is provided on the annular side wall of the cavity of the volute, and the air inlet is provided on the rear side wall of the cavity of the volute.

[0010] Furthermore, an air outlet is provided at the bottom of the volute, and the air outlet is connected to the volute.

[0011] The advantages of this utility model over the current technology are as follows:

[0012] 1. The maintenance door is rotatably mounted on the volute. The motor shaft of the drive motor passes through the maintenance door and is equipped with an impeller. When the centrifugal fan needs maintenance, the bolts fixing the maintenance door can be removed. At this time, the maintenance door can rotate 90° with the drive motor and impeller, exposing the impeller to the outside. The user has enough space to inspect or replace the impeller. At the same time, after the maintenance door is opened, the user can easily observe the wear condition inside the volute.

[0013] 2. The inner rubber lining reduces wear on the volute and extends its lifespan.

[0014] 3. A fan frame is provided, which can improve the overall rigidity of the fan. Attached Figure Description

[0015] Figure 1 This is a three-dimensional illustration of the present invention. Figure 1 ;

[0016] Figure 2 This is a three-dimensional illustration of the present invention. Figure 2 ;

[0017] Figure 3 This is a simplified schematic diagram of the present invention installed inside a sanitation vehicle.

[0018] The markings in the diagram correspond to: 1-box body, 2-side door of the protective cover, 3-volute, 4-drive motor, 5-inspection door, 6-impeller, 7-rotating shaft, 8-fan frame, 9-inner rubber lining, 10-air inlet, 11-air outlet. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments. Example

[0020] like Figures 1-3As shown, a centrifugal fan that is easy to maintain on-vehicle is installed inside the body 1 of a sanitation vehicle. The body 1 of the sanitation vehicle is equipped with a protective side door 2. The centrifugal fan includes a fan structure, which includes a volute 3, a drive motor 4, and an inspection door 5. The drive motor 4 is installed on the outside of the inspection door 5. The motor shaft of the drive motor 4 passes through the inspection door 5 and is equipped with an impeller 6. The centrifugal fan adopts a direct drive method. The inspection door 5 is connected to the volute 3 through a rotating shaft 7 and then fixed to the volute 3 with bolts. It also includes a fan frame 8, which is divided into two parts. One part is welded to the inspection door 5, and the other part is welded to the volute 3. The two parts of the frame are connected by threads, which can improve the overall rigidity of the centrifugal fan. The volute 3 is hollow inside and has a through hole. The size of the through hole matches the size of the impeller 6. During operation, the impeller 6 is placed in the cavity through the through hole. When maintenance is required, the impeller 6 is disassembled and fixed. The bolts of the maintenance door 5 are fixed. At this time, the maintenance door 5 can rotate 90° with the drive motor and impeller, exposing the impeller 6 to the outside. The user has enough space to inspect or replace the impeller 6. At the same time, after the maintenance door 5 is opened, the user can easily observe the wear condition inside the volute 3. The cavity of the volute 3 is also fixedly equipped with an inner rubber liner 9 and an air inlet 10. The inner rubber liner 9 is set on the annular side wall of the cavity of the volute 3, and the air inlet 10 is set on the rear side wall of the cavity of the volute 3. The inner rubber liner 9 can reduce the wear of the volute 3 and extend its service life. At the same time, the maintenance door 5 makes it easy to replace the inner rubber liner 9. An air outlet 11 is set at the bottom of the volute 3 and is connected to the volute 3. Without lifting the housing 1, the centrifugal fan can be easily inspected on the vehicle by opening the side door 2 of the protective cover and the maintenance door 5, which solves the problem that has always plagued users of the inconvenience of inspecting centrifugal fans on the vehicle.

[0021] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] The above provides a detailed description of a centrifugal fan that is easy to maintain on-vehicle. The specific embodiments are only used to help understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from it, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A centrifugal fan that is easy to maintain on-vehicle, installed inside a sanitation vehicle, characterized in that: The fan structure includes a volute (3), a drive motor (4), and an inspection door (5). The drive motor (4) is installed on the outside of the inspection door (5). The motor shaft of the drive motor (4) passes through the inspection door (5) and is equipped with an impeller (6). The inspection door (5) is rotatably mounted on the volute (3).

2. The centrifugal fan for easy on-board maintenance according to claim 1, characterized in that: It also includes a fan frame (8), which is divided into two parts, one part is installed on the inspection door (5), and the other part is installed on the volute (3).

3. A centrifugal fan that is easy to maintain on-vehicle according to claim 1, characterized in that: The volute (3) has a hollow interior and a through hole is provided on the volute (3). The size of the through hole matches the size of the impeller (6).

4. A centrifugal fan that is easy to maintain on-vehicle according to claim 1, characterized in that: The cavity of the volute (3) is fixedly provided with an inner rubber lining (9) and an air inlet (10). The inner rubber lining (9) is provided on the annular side wall of the cavity of the volute (3), and the air inlet (10) is provided on the rear side wall of the cavity of the volute (3).

5. A centrifugal fan that is easy to maintain on-vehicle according to claim 4, characterized in that: An air outlet (11) is provided below the volute (3), and the air outlet (11) is connected to the volute.

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