Centrifugal fan special for agricultural machine

Abstract

The utility model discloses a special centrifugal fan for agricultural machinery, which comprises a shell, a motor and an impeller, the shell is provided with an air inlet and an air outlet, the motor is mounted on one side of the shell, the impeller is mounted in the shell and connected with an output shaft of the motor, the shell is provided with a connecting disc at one end of the air inlet, and the special centrifugal fan further comprises a connecting sleeve, the connecting sleeve is of a hollow cylindrical structure with two open ends, the connecting sleeve is installed on the connecting disc, a storage box is arranged in the connecting sleeve, a drying agent is stored in the storage box, and the storage box is connected with the connecting sleeve through a plurality of connecting rods. According to the centrifugal fan special for the agricultural machine, the connecting sleeve is installed at the air inlet, the connecting sleeve and the air inlet are fixed through the bolt, the storage box is arranged in the connecting sleeve, the drying agent is contained in the storage box, when the centrifugal fan is used, the drying agent absorbs moisture in sucked air, and the moisture-proof performance of the fan is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal fans, and mainly relates to a centrifugal fan special for agricultural machinery. Background Art

[0002] Agricultural machinery refers to various machines used in crop cultivation and animal husbandry, as well as in the primary processing and handling of agricultural and livestock products. This includes agricultural power machinery, farmland construction machinery, soil tillage machinery, planting and fertilizing machinery, plant protection machinery, farmland irrigation and drainage machinery, crop harvesting machinery, agricultural product processing machinery, animal husbandry machinery, and agricultural transport machinery.

[0003] To facilitate operators' extended driving of agricultural machinery and reduce the impact of the external environment on their normal operation, many agricultural machinery are equipped with a cab and a fan inside the cab to ensure fresh air inside the cab. However, agricultural operations often take place in the early morning, when the air contains more moisture (heavy fog). This outside air is directly drawn into the fan, which can become damp inside the fan over long periods of time, shortening its service life. Utility Model Content

[0004] The utility model aims to solve some problems existing in the prior art. To this end, the purpose of the utility model is to provide a centrifugal fan for agricultural machinery, which has good moisture resistance and extends the service life of the fan.

[0005] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions:

[0006] A centrifugal fan for agricultural machinery includes a casing, a motor and an impeller. The casing is provided with an air inlet and an air outlet. The motor is installed on one side of the casing. The impeller is installed inside and connected to the output shaft of the motor. The casing is provided with a connecting disk at one end of the air inlet; it also includes a connecting sleeve, which is a hollow cylindrical structure with openings at both ends. The connecting sleeve is installed on the connecting disk. A storage box is provided inside the connecting sleeve. Desiccant is stored inside the storage box. The storage box is connected to the connecting sleeve through multiple connecting rods.

[0007] Preferably, the storage box is provided with a box cover connected with a snap button, and the box cover is provided with a plurality of evenly arranged ventilation holes.

[0008] Preferably, a waterproof layer is provided on the outer surface of the impeller.

[0009] Preferably, a plurality of first threaded holes are provided at one end of the connecting sleeve, a connecting head is provided at one end of the connecting rod, and a plurality of first through holes adapted to the first threaded holes are provided on the connecting head.

[0010] Preferably, the connecting plate is provided with a plurality of second threaded holes, and the other end of the connecting sleeve is provided with a plurality of second through holes adapted to the second threaded holes.

[0011] Preferably, a first protective net is provided between the connecting plate and the connecting sleeve, and two side surfaces of the first protective net are respectively in contact with the connecting plate and the connecting sleeve.

[0012] Preferably, a second protective net is provided at one end of the connecting sleeve, and a side surface of the second protective net is in contact with the connecting sleeve.

[0013] Preferably, both the first protective net and the second protective net are provided with through holes for installation.

[0014] Preferably, a plurality of third through holes are provided on the outer periphery of the shell.

[0015] Preferably, the thickness of the waterproof layer is 1 mm.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] This centrifugal fan for agricultural machinery is equipped with a connecting sleeve at the air inlet, and the two are fixed by bolts. A storage box is provided inside the connecting sleeve, and the storage box is filled with desiccant. When in use, the desiccant absorbs moisture in the inhaled air, thereby improving the moisture-proof performance of the fan.

[0018] The features and advantages of the present invention will be described in detail through the embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 This is a cross-sectional view of the utility model;

[0021] Figure 3 For this utility model Figure 2 A magnified view of point A in the figure;

[0022] Figure 4 This is a schematic diagram of the installation of the utility model.

[0023] Figure markings: 1. Housing, 2. Motor, 3. Impeller, 4. Connecting plate, 5. Connecting sleeve, 6. Storage box, 7. Connecting rod, 8. Box cover, 9. Vent, 10. First threaded hole, 11. Connecting head, 12. First through hole, 13. Second threaded hole, 14. Second through hole, 15. First protective net, 16. Second protective net, 17. Third through hole, 18. Cab. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of devices consistent with certain aspects of the present application, as detailed in the appended claims.

[0026] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, technical or scientific terms used in this application should have the same ordinary meaning as those understood by persons of ordinary skill in the art to which this invention belongs. The use of "a," "an," and similar terms in this specification and claims does not indicate a limitation of quantity, but rather indicates the presence of at least one. "A plurality" includes two and is equivalent to at least two. "Includes" or "comprising" and similar terms mean that the elements or objects preceding "includes" or "comprising" include the elements or objects listed after "includes" or "comprising," and their equivalents, and do not exclude other elements or objects. "Connected" or "connected" and similar terms are not limited to physical or mechanical connections and may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0027] Please refer to Figure 1-4 The centrifugal fan for agricultural machinery includes a casing 1, a motor 2 and an impeller 3. The casing 1 is provided with an air inlet and an air outlet. The motor 2 is installed on one side of the casing 1. The impeller 3 is installed inside and is connected to the output shaft of the motor 2. The casing 1 is provided with a connecting disk 4 at one end of the air inlet; it also includes a connecting sleeve 5, which is a hollow cylindrical structure with openings at both ends. The connecting sleeve 5 is installed on the connecting disk 4. A storage box 6 is provided inside the connecting sleeve 5. Desiccant is stored inside the storage box 6. The storage box 6 is connected to the connecting sleeve 5 through multiple connecting rods 7.

[0028] In the above embodiment, when the centrifugal fan for agricultural machinery is in use, the desiccant can absorb moisture in the inhaled air, thereby improving the moisture-proof performance of the fan.

[0029] Furthermore, the storage box 6 is provided with a box cover 8 connected by a snap, and a plurality of evenly arranged vent holes 9 are provided on the box cover 8. The desiccant can interact with the outside air through the vent holes 9 so that it absorbs moisture in the air.

[0030] Furthermore, a waterproof layer with a thickness of 1 mm is provided on the outer surface of the impeller 3. The waterproof layer is made of polyurethane waterproof coating, which makes the impeller 3 have good waterproof and moisture-proof properties and extends the service life of the impeller 3.

[0031] Furthermore, a plurality of first threaded holes 10 are formed at one end of the connecting sleeve 5, and a connecting head 11 is provided at one end of the connecting rod 7. The connecting head 11 is provided with a plurality of first through holes 12 that match the first threaded holes 10. Screws can be assembled in the first threaded holes 10 and the first through holes 12, that is, the connecting head 11 (connecting rod 7) is fixed to the connecting sleeve 5 by screws.

[0032] Furthermore, the connecting plate 4 is provided with a plurality of second threaded holes 13, and the other end of the connecting sleeve 5 is provided with a plurality of second through holes 14 adapted to the second threaded holes 13. Screws can be assembled in the second threaded holes 13 and the second through holes 14, that is, the connecting sleeve 5 is fixed to the connecting plate 4 by screws.

[0033] Furthermore, a first protective net 15 is provided between the connecting plate 4 and the connecting sleeve 5, with its two sides respectively contacting the connecting plate 4 and the connecting sleeve 5. A second protective net 16 is provided at one end of the connecting sleeve 5, with one side contacting the connecting sleeve 5. The protective net filters the inhaled air and prevents dust from entering the fan.

[0034] Furthermore, through holes for installation are provided on the first protection net 15 and the second protection net 16. The protection nets are fixed by screws.

[0035] Furthermore, a plurality of third through holes 17 are formed on the outer periphery of the housing 1. The third through holes 17 can be fitted with fasteners, that is, the housing 1 (blower) is fixed in the cab 18 via the fasteners.

[0036] The utility model is a centrifugal fan for agricultural machinery. Its working principle is described in conjunction with the accompanying drawings:

[0037] First, place desiccant in the storage box 6, then install the connecting rod 7 and storage box 6 into the connecting sleeve 5, and then install the connecting sleeve 5 and protective net. The centrifugal fan is activated. During use, external air is drawn into the fan through the connecting sleeve 5. The first protective net 15 performs an initial filtration of the air to prevent dust from entering the connecting sleeve 5. The filtered air passes through the desiccant, absorbing moisture from the air to prevent excessive moisture from entering the fan and causing internal moisture. The second protective net 16 filters the air again to prevent dust from entering the fan.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A centrifugal fan for agricultural machinery, comprising a housing, a motor and an impeller, wherein the housing is provided with an air inlet and an air outlet, the motor is mounted on one side of the housing, the impeller is mounted inside the housing and connected to the output shaft of the motor, and is characterized in that: The shell is provided with a connecting disk at one end of the air inlet, and also includes a connecting sleeve. The connecting sleeve is a hollow cylindrical structure with openings at both ends. The connecting sleeve is installed on the connecting disk. A storage box is provided inside the connecting sleeve. Desiccant is stored inside the storage box. The storage box is connected to the connecting sleeve through multiple connecting rods.

2. The centrifugal fan for agricultural machinery according to claim 1, characterized in that: The storage box is provided with a box cover connected with a buckle, and the box cover is provided with a plurality of evenly arranged ventilation holes.

3. The centrifugal fan for agricultural machinery according to claim 1, characterized in that: The outer surface of the impeller is provided with a waterproof layer.

4. The centrifugal fan for agricultural machinery according to claim 1, characterized in that: One end of the connecting sleeve is provided with a plurality of first threaded holes, one end of the connecting rod is provided with a connecting head, and the connecting head is provided with a plurality of first through holes adapted to the first threaded holes.

5. The centrifugal fan for agricultural machinery according to claim 4, characterized in that: The connecting plate is provided with a plurality of second threaded holes, and the other end of the connecting sleeve is provided with a plurality of second through holes adapted to the second threaded holes.

6. The centrifugal fan for agricultural machinery according to claim 5, characterized in that: A first protective net is provided between the connecting plate and the connecting sleeve, and two side surfaces of the first protective net are respectively in contact with the connecting plate and the connecting sleeve.

7. The centrifugal fan for agricultural machinery according to claim 6, characterized in that: A second protective net is provided at one end of the connecting sleeve, and a side surface of the second protective net is in contact with the connecting sleeve.

8. The centrifugal fan for agricultural machinery according to claim 7, characterized in that: The first protective net and the second protective net are both provided with through holes for installation.

9. The centrifugal fan for agricultural machinery according to claim 1, characterized in that: A plurality of third through holes are formed on the outer periphery of the shell.

10. The centrifugal fan for agricultural machinery according to claim 3, characterized in that: The thickness of the waterproof layer is 1 mm.

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