Belt fan with replaceable impeller

Abstract

The utility model discloses a belt material fan with a replaceable impeller, which relates to the technical field of belt material fans and comprises an equipment base, a driving motor is fixedly mounted on the equipment base, a protective cover is mounted on one side of the driving motor, and a fan component is fixedly mounted on the equipment base. The fan assembly comprises a fan volute fixedly mounted on the equipment base, a mounting opening is formed in a fan volute side plate, a volute side plate is arranged at the mounting opening, and a positioning mechanism is arranged between the volute side plate and the fan volute. The positioning mechanism comprises a positioning base fixedly installed on the fan volute and a positioning ring base fixedly installed on a volute side plate, a rubber ring is fixedly installed on the positioning ring base, and an adsorption groove is formed in the positioning base. According to the belt material draught fan with the replaceable impeller, the volute side plate can be rapidly disassembled and assembled through the positioning mechanism, and a user can conveniently and rapidly replace the impeller.

Description

TECHNICAL FIELD

[0001] The utility model relates to a belt material fan technology field, concretely is a belt material fan of replaceable impeller. BACKGROUND

[0002] The belt material fan is a kind of equipment widely used in industrial field, and is mainly used for the conveying and processing of material. It usually has the characteristics of high pressure, large air volume, low noise, etc., and can meet the needs of different industries. The working principle of the belt material fan is to convey the material from one place to another by the airflow generated by the fan. During the conveying process, the fan can maintain the integrity and stability of the material, avoiding damage and scattering of the material. At the same time, the belt material fan can also adjust the speed and air volume of the fan according to the characteristics of the material and the different conveying distances, to achieve the best conveying effect.

[0003] In industrial applications, the belt material fan is a common device, and its impeller part is prone to damage after a long time of operation and use. Once the impeller is damaged, in order to repair or replace it, the worker needs to take a series of steps. First, there is usually a volute side plate on the volute side plate of the fan, which is tightly connected with the fan volute by a large number of bolts. In order to smoothly remove the damaged impeller and replace the new one, the user must first perform a tedious but necessary operation, that is, to loosen the bolts that fix the volute side plate one by one. Only when all the bolts are loosened, the volute side plate can be opened, and then the impeller can be accessed for subsequent replacement work, which is more inconvenient. SUMMARY

[0004] The utility model aims at providing a belt material fan with replaceable impeller to solve the problem of inconvenient replacement of fan impeller in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a belt material fan with replaceable impeller, comprising a device base, a driving motor is fixedly installed on the device base, a protective cover is installed on one side of the driving motor, a fan assembly is fixedly installed on the device base, the fan assembly comprises a fan volute fixedly installed on the device base, an installation port is formed in the volute side plate, a volute side plate is arranged at the installation port, a positioning mechanism is arranged between the volute side plate and the fan volute, the positioning mechanism comprises a positioning base fixedly installed on the fan volute and a positioning ring seat fixedly installed on the volute side plate, a rubber ring is fixedly installed on the positioning ring seat, and an adsorption groove is formed in the positioning base.

[0006] Preferably, an air inlet pipe is fixedly installed on one side of the positioning base, a sealing cap is arranged at the end of the air inlet pipe, an air outlet pipe is fixedly installed on the other side of the positioning base, and a one-way valve is arranged in the air outlet pipe.

[0007] Preferably, the positioning base is welded and fixedly installed on the fan volute, and the positioning ring seat is welded and installed on the volute side plate.

[0008] Preferably, the air inlet pipe is provided with threads at the end, the sealing cap is connected to the end of the air inlet pipe through the threads, and the volute side plate is installed at the installation opening of the fan volute through the positioning mechanism.

[0009] Preferably, the fan assembly further comprises a positioning support fixedly installed on the fan volute and a driving shaft rotatably installed on the fan volute, one end of the driving shaft is fixedly installed with a belt pulley, the other end of the driving shaft is provided with an impeller body, a fixing nut is threadedly installed on the driving shaft, and the positioning support is provided with a bearing seat.

[0010] Preferably, the bearing seat is provided with a bearing, and the driving shaft is rotatably installed on the bearing seat through the bearing.

[0011] Preferably, the fan volute is fixedly installed on the equipment base through the positioning support, the impeller body is fixedly installed on the driving shaft through the fixing nut, the impeller body is rotatably installed in the fan volute through the driving shaft, and the belt pulley is rotatably installed on one side of the bearing seat through the driving shaft.

[0012] Compared with the prior art, the fan assembly has the following beneficial effects:

[0013] 1. After the fixing nut is removed, the impeller body is loosened, so that the user can easily dismount the impeller body from the driving shaft. After the positioning ring seat is connected to the positioning base, the air in the adsorption groove can be extracted through the air extraction pipe, so that the positioning ring seat is firmly adsorbed on the positioning base, and the volute side plate can be quickly fixed on the installation opening of the fan volute.

[0014] 2. After the sealing cap is removed, external air enters the adsorption groove, so that the pressure in the adsorption groove and the atmospheric pressure reach a balanced state. When the pressure in the adsorption groove and the atmospheric pressure are balanced, the positioning ring seat fixed on the adsorption groove will be loosened. After the positioning ring seat is loosened, the dismounting process of the volute side plate can be quickly performed, so that the user can easily replace the impeller body. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the local structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the fan assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the positioning mechanism of this utility model.

[0019] The following are the labeling elements in the diagram: 1. Equipment base; 2. Drive motor; 3. Protective cover; 4. Fan assembly; 401. Fan volute; 402. Impeller body; 403. Mounting port; 404. Fixing nut; 405. Drive shaft; 406. Pulley; 407. Bearing seat; 408. Positioning bracket; 5. Positioning mechanism; 501. Positioning ring seat; 502. Air inlet pipe; 503. Rubber ring; 504. Positioning base; 505. Adsorption tank; 506. Extraction pipe; 507. Sealing cap; 7. Volute side plate. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a material conveyor with a replaceable impeller, including a base 1, a drive motor 2 fixedly installed on the base 1, a protective cover 3 installed on one side of the drive motor 2, and a fan assembly 4 fixedly installed on the base 1. The fan assembly 4 includes a fan volute 401 fixedly installed on the base 1, an installation port 403 is provided on the side wall of the fan volute 401, a volute side plate 7 is provided at the installation port 403, and a positioning mechanism 5 is provided between the volute side plate 7 and the fan volute 401. The positioning mechanism 5 can realize the quick disassembly and assembly of the volute side plate 7, which facilitates the user to quickly replace the impeller body 402.

[0022] like Figure 2 and Figure 3 As shown, the fan assembly 4 includes a fan volute 401 fixedly installed on the equipment base 1. The fan volute 401 has an installation port 403 on its side wall and a volute side plate 7 at the installation port 403. The fan assembly 4 also includes a positioning bracket 408 fixedly installed on the fan volute 401 and a drive shaft 405 rotatably installed on the fan volute 401. A pulley 406 is fixedly installed at one end of the drive shaft 405, and an impeller body 402 is provided at the other end of the drive shaft 405. A fixing nut 404 is threaded on the drive shaft 405. A bearing seat 407 is provided on the positioning bracket 408, and a bearing is provided on the bearing seat 407. The drive shaft 405 is rotatably installed on the bearing seat 407 through the bearing.

[0023] Specifically, during maintenance or component replacement, the first step is to unscrew the retaining nut 404, which easily loosens the impeller body 402. This allows the user to conveniently remove the impeller body 402 from the drive shaft 405. When the pulley 406 begins to rotate, it drives the drive shaft 405 to rotate via a transmission mechanism. As the drive shaft 405 rotates, the impeller body 402 also begins to rotate inside the fan casing 401. This series of rotational actions ultimately leads to the generation of airflow, which in turn drives the movement of materials, thus realizing the material conveying process.

[0024] like Figure 2 and Figure 4 As shown, the positioning mechanism 5 includes a positioning base 504 fixedly installed on the fan casing 401 and a positioning ring seat 501 fixedly installed on the side plate 7 of the casing. A rubber ring 503 is fixedly installed on the positioning ring seat 501. An adsorption groove 505 is opened on the positioning base 504. An air inlet pipe 502 is fixedly installed on one side of the positioning base 504. A sealing cap 507 is provided at the end of the air inlet pipe 502. An air extraction pipe 506 is fixedly installed on the other side of the positioning base 504. A one-way valve is provided in the air extraction pipe 506.

[0025] Specifically, during operation, the sealing cap 507 must first be opened, allowing outside gas to freely enter the adsorption tank 505. As outside gas flows in, the air pressure inside the adsorption tank 505 gradually reaches equilibrium with the external atmospheric pressure. Once the air pressure inside the adsorption tank 505 is balanced with the atmospheric pressure, the positioning ring seat 501, which was previously tightly adhered to the adsorption tank 505 due to the pressure difference, will begin to loosen. Once the positioning ring seat 501 loosens, the user can quickly remove the volute side plate 7, greatly simplifying the process and improving work efficiency. After removing the volute side plate 7, the user can easily replace the impeller body 402, thus completing the entire maintenance or replacement process.

[0026] Working principle: During use, the belt drives the pulley 406 to rotate, which in turn drives the drive shaft 405 to rotate. The drive shaft 405 then drives the impeller body 402 to rotate within the fan casing 401, thereby generating airflow and moving the material. By unscrewing the fixing nut 404, the impeller body 402 can be loosened, allowing the user to easily remove it from the drive shaft 405. When replacing the impeller body 402, the sealing cap 507 can be opened. After opening the sealing cap 507, external gas will enter the adsorption tank 505. As external gas flows in, the gas pressure inside the adsorption tank 505 will gradually reach an equilibrium with the external atmospheric pressure. Once the air pressure in the adsorption tank 505 is balanced with the atmospheric pressure, the positioning ring seat 501, which was previously tightly adsorbed onto the adsorption tank 505 due to the air pressure difference, will begin to loosen. After the positioning ring seat 501 loosens, the volute side plate 7 can be quickly removed, making it convenient for the user to replace the impeller body 402. After the impeller body 402 is replaced, the positioning ring seat 501 can be reconnected to the positioning base 504. After the positioning ring seat 501 is connected to the positioning base 504, the air in the adsorption tank 505 can be extracted through the air extraction pipe 506, so that the positioning ring seat 501 is firmly adsorbed onto the positioning base 504, and the volute side plate 7 can be quickly fixed at the mounting port 403 of the fan volute 401.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A material conveyor with replaceable impeller, comprising a base (1), on which a drive motor (2) is fixedly mounted, and a protective cover (3) is mounted on one side of the drive motor (2), characterized in that: A fan assembly (4) is fixedly installed on the equipment base (1). The fan assembly (4) includes a fan volute (401) fixedly installed on the equipment base (1). An installation port (403) is provided on the side wall of the fan volute (401). A volute side plate (7) is provided at the installation port (403). A positioning mechanism (5) is provided between the volute side plate (7) and the fan volute (401). The positioning mechanism (5) includes a positioning base (504) fixedly installed on the fan volute (401) and a positioning ring seat (501) fixedly installed on the volute side plate (7). A rubber ring (503) is fixedly installed on the positioning ring seat (501). An adsorption groove (505) is provided on the positioning base (504).

2. A material conveyor fan with a replaceable impeller according to claim 1, characterized in that: An air inlet pipe (502) is fixedly installed on one side of the positioning base (504), and a sealing cap (507) is provided at the end of the air inlet pipe (502). An air extraction pipe (506) is fixedly installed on the other side of the positioning base (504), and a one-way valve is provided inside the air extraction pipe (506).

3. A material conveyor fan with a replaceable impeller according to claim 2, characterized in that: The positioning base (504) is welded and fixedly installed on the fan casing (401), and the positioning ring seat (501) is welded and installed on the side plate (7) of the casing.

4. A material conveyor fan with a replaceable impeller according to claim 3, characterized in that: The intake pipe (502) is threaded at the end, and the sealing cap (507) is threaded to the end of the intake pipe (502). The volute side plate (7) is installed at the mounting port (403) on the fan volute (401) by the positioning mechanism (5).

5. A material conveyor fan with a replaceable impeller according to claim 4, characterized in that: The fan assembly (4) further includes a positioning bracket (408) fixedly installed on the fan volute (401) and a drive shaft (405) rotatably installed on the fan volute (401). A pulley (406) is fixedly installed at one end of the drive shaft (405), and an impeller body (402) is provided at the other end of the drive shaft (405). A fixing nut (404) is threaded on the drive shaft (405), and a bearing seat (407) is provided on the positioning bracket (408).

6. A material conveyor fan with a replaceable impeller according to claim 5, characterized in that: The bearing housing (407) is provided with a bearing, and the drive shaft (405) is rotatably mounted on the bearing housing (407) via the bearing.

7. A material conveyor fan with a replaceable impeller according to claim 5, characterized in that: The fan casing (401) is fixedly installed on the equipment base (1) by the positioning bracket (408), the impeller body (402) is fixedly installed on the drive shaft (405) by the fixing nut (404), the impeller body (402) is rotatably installed in the fan casing (401) by the drive shaft (405), and the pulley (406) is rotatably installed on one side of the bearing seat (407) by the drive shaft (405).

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