Shaft hole sealing device special for desulfurization fan

Abstract

The utility model belongs to the technical field of fans, and particularly relates to a special shaft hole sealing device for a desulfurization fan, which comprises a fan shell, a motor arranged on one side of the fan shell, a rotating shaft arranged at one end of the motor, a base fixedly mounted at the bottom of the motor, a sealing bearing fixedly mounted on the inner wall of the fan shell, and a fixed limiting plate fixedly mounted on one side of the fan shell. A sealing plate is fixedly installed on the outer wall of the rotating shaft, a sealing ring is arranged on the rotating shaft, the motor is electrically connected with an external power source through a wire, and the motor and the base are fixedly installed in an embedded mode. The fixed limiting plate, the first sealing groove, the second sealing groove, the sealing plate, the first sealing ring and the second sealing ring are matched for use, the sealing plate is fixedly connected with the rotating shaft, and meanwhile the sealing plate is movably connected with the fixed limiting plate; and through movable sealing connection among the first sealing ring, the second sealing ring, the first sealing groove and the second sealing groove, the connection and installation sealing performance between the rotating shaft and the fan shell can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a special shaft hole sealing device for a desulfurization fan. Background Technique

[0002] A fan is a machine that relies on the input mechanical energy to increase the gas pressure and pump the gas. It is a driven fluid machine. The fan is the Chinese customary abbreviation for gas compression and gas transportation machinery. Usually, the fans mentioned include ventilators, blowers, and wind turbines. Fans are widely used in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings for ventilation, dust removal, and cooling; ventilation and air extraction of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household electrical appliances; drying and selection of grains, air source of wind tunnels, and inflation and propulsion of hovercrafts. With the development of ventilator technology, its application range has expanded from the original transportation of harmless gases or indoor and outdoor air conditioning to the transportation of toxic gases such as coal gas, n-hexane gas, hydrogen chloride gas, and even radioactive gases and other media toxic to the human body. This requires very good sealing performance of the fan. Otherwise, gas leakage will cause environmental pollution and endanger human health.

[0003] The prior art has the following deficiencies: The prior art discloses a shaft hole sealing device for a fan housing with the publication number of CN202120255690.0, which includes a plurality of arched components arranged on the top of the wind housing and around the main shaft. The through hole formed in the middle after the docking of the plurality of arched components is used to sleeve the main shaft, and a sealing ring is arranged between the through hole and the wind housing. A plurality of tooth-shaped grooves are arranged on the inner circumferential surface formed by each arched component from top to bottom.

[0004] When the above equipment is used, its overall structure is relatively simple, and the sealing structure is relatively single. During long-term working use, its sealing performance is likely to deteriorate, affecting the working use effect and making it inconvenient to work for a long time. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a special shaft hole sealing device for a desulfurization fan to solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solution: A special shaft hole sealing device for a desulfurization fan, including a fan housing, a motor is arranged on one side of the fan housing, a rotating shaft is arranged at one end of the motor, a base is fixedly installed at the bottom of the motor, a sealing bearing is fixedly installed on the inner wall of the fan housing, a fixed limiting plate is fixedly installed on one side of the fan housing, a sealing plate is fixedly installed on the outer wall of the rotating shaft, and a sealing ring is arranged on the rotating shaft.

[0007] As a preferred technical solution of the present utility model, the motor is electrically connected to an external power supply through a wire, and the motor and the base are fixedly installed in an embedded manner.

[0008] As a preferred technical solution of the present utility model, the rotating shaft penetrates through the sealed bearing and extends into the interior of the fan housing.

[0009] As a preferred technical solution of the present utility model, the fixed limit plate and the sealing plate are of matching sizes, and the fixed limit plate and the sealing plate are movably connected.

[0010] As a preferred technical solution of the present utility model, the fixed limit plate includes a first sealing groove and a second sealing groove. The first sealing groove is provided on one side of the fixed limit plate. A second sealing groove is provided inside the first sealing groove. Both the first sealing groove and the second sealing groove are in a ring shape, and the inner diameters of the first sealing groove and the second sealing groove are the same.

[0011] As a preferred technical solution of the present utility model, the sealing plate includes a first sealing ring and a second sealing ring. The first sealing ring is provided on one side of the sealing plate. A second sealing ring is provided inside the first sealing ring. The outer diameters of the first sealing ring and the second sealing ring are adapted to the inner diameters of the first sealing groove and the second sealing groove, and the first sealing ring and the second sealing ring are respectively movably connected to the first sealing groove and the second sealing groove.

[0012] As a preferred technical solution of the present utility model, the sealing ring is made of rubber material and is provided between the rotating shaft and the sealing plate.

[0013] Compared with the prior art, the present utility model provides a special shaft hole sealing device for a desulfurization fan, which has the following beneficial effects:

[0014] 1. For this special shaft hole sealing device for a desulfurization fan, by providing a sealed bearing between the fan housing and the rotating shaft, the connection sealing performance between the rotating shaft and the fan housing can be improved. By using the fixed limit plate, the first sealing groove, the second sealing groove, the sealing plate, the first sealing ring and the second sealing ring in cooperation, the sealing plate is fixedly connected to the rotating shaft and is movably connected to the fixed limit plate at the same time. Through the movable sealing connection between the first sealing ring, the second sealing ring and the first sealing groove, the second sealing groove, the connection and installation sealing performance between the rotating shaft and the fan housing can be further improved, preventing gas leakage and affecting the working use effect.

[0015] 2. The special shaft hole sealing device for a desulfurization fan can improve the fixed installation sealing performance between the sealing plate and the rotating shaft by arranging a sealing ring between the rotating shaft and the sealing plate. At the same time, by setting the motor and the base to be embedded and fixedly installed, the stability of the motor fixed installation can be effectively improved, preventing the vibration generated during its operation from being easily transmitted to the rotating shaft, thus affecting the sealing performance between the rotating shaft and the fan housing, and facilitating better long-term operation and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 is a sectional structural schematic diagram of the present utility model;

[0018] Figure 3 For the present utility model Figure 2 is an enlarged structural schematic diagram at position A;

[0019] Figure 4 is a structural schematic diagram of the sealing plate of the present utility model;

[0020] Figure 5 is a structural schematic diagram of the rotating shaft of the present utility model.

[0021] In the figure: 1. Fan housing; 2. Motor; 3. Rotating shaft; 4. Base; 5. Sealing bearing; 6. Fixed limit plate; 601. First sealing groove; 602. Second sealing groove; 7. Sealing plate; 701. First sealing ring; 702. Second sealing ring; 8. Sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-5, in this implementation scheme: A special shaft hole sealing device for a desulfurization fan, including a fan housing 1, a motor 2 is arranged on one side of the fan housing 1 to facilitate the rotation of the rotating shaft 3. One end of the motor 2 is provided with a rotating shaft 3 to facilitate the installation of the fan blade. A base 4 is fixedly installed at the bottom of the motor 2 to facilitate the installation of the motor 2. A sealing bearing 5 is fixedly installed on the inner wall of the fan housing 1 to improve the sealing performance of the installation and use of the rotating shaft 3. A fixed limit plate 6 is fixedly installed on one side of the fan housing 1 to facilitate the limitation of the rotating shaft 3. A sealing plate 7 is fixedly installed on the outer wall of the rotating shaft 3 to improve the sealing performance of the connection and installation with the fan housing 1. A sealing ring 8 is arranged on the rotating shaft 3 to facilitate the improvement of the connection sealing performance with the sealing plate 7.

[0024] In this embodiment, the motor 2 is electrically connected to an external power supply through a wire. The motor 2 and the base 4 are fixedly installed in an embedded manner to improve the stability of its fixed installation and prevent easy vibration. The rotating shaft 3 passes through the sealing bearing 5 and extends into the fan housing 1 to facilitate the connection of the fan blade and facilitate the work and use. The fixed limit plate 6 and the sealing plate 7 are of suitable sizes, and the fixed limit plate 6 and the sealing plate 7 are movably connected to facilitate the movable adjustment and the rotation of the rotating shaft 3. The fixed limit plate 6 includes a first sealing groove 601 and a second sealing groove 602. The first sealing groove 601 is arranged on one side of the fixed limit plate 6, and the second sealing groove 602 is arranged inside the first sealing groove 601. Both the first sealing groove 601 and the second sealing groove 602 are arranged in a circular shape, and the inner diameter sizes of the first sealing groove 601 and the second sealing groove 602 are the same, which is convenient for connecting the sealing plate 7 and can improve the connection sealing performance. The sealing plate 7 includes a first sealing ring 701 and a second sealing ring 702. A first sealing ring 701 is arranged on one side of the sealing plate 7, and a second sealing ring 702 is arranged inside the first sealing ring 701. The outer diameter sizes of the first sealing ring 701 and the second sealing ring 702 are adapted to the inner diameter sizes of the first sealing groove 601 and the second sealing groove 602. The first sealing ring 701 and the second sealing ring 702 are respectively movably connected to the first sealing groove 601 and the second sealing groove 602 to facilitate the movable sealing connection and improve the connection and installation sealing performance. The sealing ring 8 is made of rubber material and is arranged between the rotating shaft 3 and the sealing plate 7 to facilitate the improvement of the connection sealing performance between the rotating shaft 3 and the sealing plate 7 and facilitate the work and use.

[0025] The working principle and usage process of the present utility model: The operator controls the motor 2 to work, which can rotate the rotating shaft 3 to drive the fan blade to rotate, facilitating the work. By arranging a sealing bearing 5 on the inner wall of the fan housing 1, the sealing performance between it and the rotating shaft 3 can be effectively improved through the sealing bearing 5. By arranging a sealing plate 7 on the rotating shaft 3, the first sealing ring 701 and the second sealing ring 702 arranged on one side of the sealing plate 7 cooperate with the first sealing groove 601 and the second sealing groove 602 for sealing connection, which can further improve the connection sealing performance between the rotating shaft 3 and the fan housing 1 and prevent gas leakage from affecting the safe working and using effect.

[0026] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A shaft hole sealing device for a desulfurization fan, comprising a fan housing (1), a motor (2) disposed on one side of the fan housing (1), a rotating shaft (3) disposed on one end of the motor (2), and a base (4) fixedly mounted on the bottom of the motor (2), characterized in that: A sealing bearing (5) is fixedly mounted on the inner wall of the fan housing (1), a fixed limit plate (6) is fixedly mounted on one side of the fan housing (1), a sealing plate (7) is fixedly mounted on the outer wall of the rotating shaft (3), and a sealing ring (8) is provided on the rotating shaft (3).

2. A shaft hole sealing device for a desulfurization blower according to claim 1, characterized in that: The motor (2) is electrically connected to an external power source via a wire, and the motor (2) and the base (4) are embedded and fixedly installed.

3. A shaft hole sealing device for a desulfurization blower according to claim 1, characterized in that: The rotating shaft (3) passes through the sealed bearing (5) and extends into the interior of the fan housing (1).

4. A shaft hole sealing device for a desulfurization blower according to claim 1, characterized in that: The fixed limiting plate (6) and the sealing plate (7) are matched in size, and the fixed limiting plate (6) and the sealing plate (7) are movably connected.

5. The shaft hole sealing device for a desulfurization blower according to claim 1 is characterized in that: The fixed limiting plate (6) comprises a first sealing groove (601) and a second sealing groove (602); the first sealing groove (601) is arranged on one side of the fixed limiting plate (6); the second sealing groove (602) is arranged inside the first sealing groove (601); the first sealing groove (601) and the second sealing groove (602) are both arranged in an annular shape; the first sealing groove (601) and the second sealing groove (602) have the same inner diameter.

6. A shaft hole sealing device for a desulfurization blower according to claim 1, characterized in that: The sealing plate (7) comprises a first sealing ring (701) and a second sealing ring (702); the first sealing ring (701) is arranged on one side of the sealing plate (7), and the second sealing ring (702) is arranged on the inner side of the first sealing ring (701); the outer diameters of the first sealing ring (701) and the second sealing ring (702) are matched with the inner diameters of the first sealing groove (601) and the second sealing groove (602); the first sealing ring (701) and the second sealing ring (702) are movably connected to the first sealing groove (601) and the second sealing groove (602), respectively.

7. A shaft hole sealing device for a desulfurization blower according to claim 1, characterized in that: The sealing ring (8) is made of rubber material and is arranged between the rotating shaft (3) and the sealing plate (7).

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