Sealing moisture removal fan shaft seal assembly

Abstract

The utility model discloses a shaft seal assembly of a sealing moisture removal fan, belongs to the technical field of tobacco processing equipment, and aims to solve the problems that an original shaft seal of the moisture removal fan is easy to deform, so that feed liquid leaks during production and cleaning water flows out during equipment cleaning. The assembly comprises a framework sealing ring, a sealing ring axial limiting plate, a fan volute, a transmission shaft and a sealing ring mounting support, the sealing ring mounting support is in threaded connection with the fan volute, the middle of the sealing ring mounting support is concave inwards, the framework sealing ring is mounted at the concave position, one end of the transmission shaft is connected with a fan impeller, and the other end of the transmission shaft is connected with the fan volute. The other end of the sealing ring penetrates through the central holes of the framework sealing ring and the sealing ring axial limiting plate to be connected with a driving motor, and the sealing ring axial limiting plate is in threaded connection with the fan volute. According to the utility model, the problems of equipment corrosion, leakage and leakage caused by seepage liquid during production due to easy deformation of the original silica gel seal can be solved, and the durability and the safety of the equipment are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of sealed moisture fan shaft seal assemblies, belong to tobacco processing equipment technical field. BACKGROUND

[0002] Cylinder tobacco processing equipment in cigarette factory silk workshop carries out uniform flavoring and material and the stable control of moisture and temperature to tobacco material by rotary processing mode.These equipment are usually equipped with moisture fan, and the purpose is to remove the excess moisture, steam, flavor and additive generated in the processing process.However, there are several major problems in the existing moisture fan: first, viscous liquid of flavor and material is easy to accumulate in the fan volute, and with the increase of liquid amount, part of fan impeller can be submerged, increase its operating load, and serious time can cause over-current alarm when fan starts, and further cause production interruption.Second, the silica gel material shaft seal between the moisture fan and the driving motor is easy to deform and fail after a period of use.Third, if the impeller part is immersed in the material liquid accumulated in the volute, the high-speed rotating impeller will splash the material liquid, and the material liquid can slide along the volute wall and finally seep out to the outside of the volute along the shaft of the fan, causing equipment leakage.Finally, when trying to flush the impeller and volute with flowing water to solve the liquid accumulation problem, a new problem is caused, that is, a large amount of water will leak out from the shaft seal of the transmission shaft.Therefore, in order to improve the sealing performance of the moisture fan shaft seal and reduce the failure and leakage in production, a new cylinder type tobacco machine equipment moisture fan shaft seal assembly needs to be designed. SUMMARY

[0003] The utility model aims at overcoming the deficiencies in the prior art, providing a kind of sealed moisture fan shaft seal assembly, which can improve the sealing performance of the moisture fan shaft seal and reduce the failure and leakage in production

[0004] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0005] A kind of sealed moisture fan shaft seal assembly, including skeleton seal ring, sealing ring axial limit plate, fan volute, transmission shaft and sealing ring installation support, the sealing ring installation support is connected with the fan volute, the middle part of the sealing ring installation support is concave, and the skeleton seal ring is installed in the concave portion, one end of the transmission shaft is connected with fan impeller, the other end passes through the center hole of the skeleton seal ring and sealing ring axial limit plate and is connected with driving motor, the sealing ring axial limit plate is connected with the fan volute.

[0006] Preferably, the sealing ring installation support is a disc-shaped structure with a hollow middle part.

[0007] Preferably, the maximum diameter edges of the sealing ring mounting bracket and the sealing ring axial limiting plate are provided with horizontal and vertical through grooves, the through grooves are connected with the plurality of fixing bolts provided on the fan volute end face, and the fixing bolts are screwed through the through grooves to screw the fan volute with the sealing ring mounting bracket and the sealing ring axial limiting plate.

[0008] Preferably, the sealing ring mounting bracket and the sealing ring axial limiting plate are made of stainless steel.

[0009] Preferably, the mounting surface of the sealing ring mounting bracket is further provided with a plurality of threaded holes, and the threaded holes are threadedly connected with the fixing bolts.

[0010] Preferably, the sealing ring axial limiting plate is a flat disc structure.

[0011] Preferably, the sealing ring axial limiting plate is provided with a first center hole, the transmission shaft is mounted between the skeleton sealing ring and the driving motor through the first center hole, the inner recess of the sealing ring mounting bracket is provided with a second center hole, and during assembly, the transmission shaft passes through the second center hole.

[0012] Preferably, the diameters of the first center hole and the second center hole are adapted to the model of the skeleton sealing ring.

[0013] Preferably, the model of the skeleton sealing ring is adapted to the diameter parameter of the transmission shaft.

[0014] Preferably, the contact surface of the sealing ring mounting bracket and the fan volute is provided with an annular sealing gasket.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses a sealing moisture-removing fan shaft seal assembly, which comprises a sealing ring mounting bracket and a sealing ring axial limiting plate, and the sealing ring mounting bracket is provided with a plurality of threaded holes. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1It is the utility model provides a kind of sealed moisture fan shaft seal assembly assembly schematic diagram;

[0018] Figure 2 It is the utility model provides a sealing ring mounting bracket structure schematic diagram;

[0019] Figure 3 It is the utility model provides the axial limit plate structure schematic diagram;

[0020] In the drawing: 1, framework sealing ring;2, stainless steel nut;3, sealing ring axial limit plate;4, fixed bolt;5, fan volute;6, fan impeller;7, transmission shaft;8, sealing ring mounting bracket;9, annular sealing washer;10, threaded hole. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the drawings. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0022] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0023] In the description of the utility model, it needs to be explained that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanically connected, or it can be electrically connected;It can be directly connected, or it can be indirectly connected through intermediate medium, or it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances. Example 1

[0024] Reference Figure 1The utility model provides a kind of sealed moisture fan shaft seal assembly, to improve the shaft seal sealing performance of moisture fan equipment of cylinder type smoke machine, to solve the problems of deformation, leakage and cleaning water outflow of moisture fan shaft seal in prior art.The component includes framework sealing ring 1, sealing ring axial limit plate 3, fan volute 5, transmission shaft 7 and sealing ring mounting bracket 8.

[0025] Sealing ring mounting bracket 8 and fan volute 5 are fixed together by screwing mode, ensure the stability and reliability of installation.Sealing ring mounting bracket 8 middle part is designed as concave shape, and concave part is used to install framework sealing ring 1, so that framework sealing ring 1 can be closely matched with transmission shaft 7, to provide better sealing effect.

[0026] One end of the transmission shaft 7 is connected with the fan impeller 6, responsible for transmitting power from the motor to the impeller, so that the impeller rotates to realize the moisture removal function;The other end passes through the center hole of the framework sealing ring 1 and the sealing ring axial limit plate 3, and is connected with the driving motor to complete the power transmission.

[0027] Sealing ring axial limit plate 3 is fixed with fan volute 5 by screwing mode, to ensure the stability of shaft seal assembly in axial direction, prevent framework sealing ring 1 from displacement in axial direction, to ensure the reliability of sealing. Example 2

[0028] To reduce weight and provide sufficient strength and stability, sealing ring mounting bracket 8 is designed as hollow disc structure in the middle.In the embodiment of the application, the maximum diameter edge of sealing ring mounting bracket 8 and sealing ring axial limit plate 3 is respectively provided with four through grooves in horizontal and vertical directions, which are threadedly connected with a plurality of fixing bolts 4 on the end face of fan volute 5, that is, the whole set of components are fixed by using four stainless steel nuts 2, to ensure the firm connection between the bracket and fan volute.Sealing ring mounting bracket 8 and sealing ring axial limit plate 3 are made of stainless steel, which has the characteristics of corrosion resistance, high temperature resistance and wear resistance, to improve the durability and reliability of the whole component.

[0029] Referring to Figure 2 Sealing ring mounting bracket 8 is also provided with a plurality of threaded holes 10 on the mounting surface, which are threadedly connected with fixing bolts 4, to further enhance the stability of the bracket and the convenience of installation.

[0030] Referring to Figure 3, the first center hole is provided on the flat disc structure, the transmission shaft 7 is installed between the skeleton seal ring 1 and the driving motor through the hole, and the second center hole is provided in the inner recess of the seal ring mounting bracket 8. When assembling, the transmission shaft 7 also passes through the hole. The diameters of the two center holes are matched with the model of the skeleton seal ring 1, which ensures the close fit between the transmission shaft 7 and the skeleton seal ring 1, thereby providing good sealing effect.

[0031] Further, the model of the skeleton seal ring 1 is matched with the diameter parameter of the transmission shaft 7, which ensures the matching between the skeleton seal ring 1 and the transmission shaft 7, thereby further enhancing the sealing performance. The contact surface between the seal ring mounting bracket 8 and the fan volute 5 is also provided with an annular sealing gasket 9 or sealed with sealant, thereby providing additional sealing protection, preventing leakage of the material liquid and cleaning water, and reducing the risk of equipment corrosion and environmental pollution.

[0032] Assembly process:

[0033] Make sure that all the required parts, including the seal ring axial limiting plate 3, the skeleton seal ring 1, the seal ring mounting bracket 8, the fixing bolt 4 and the stainless steel nut 2, are ready and meet the specification requirements;

[0034] Insert the inner recess part of the seal ring mounting bracket 8 into the inside of the fan volute 5, and make sure that the contact surface between the two is provided with an annular sealing gasket 9 or sealed with sealant to ensure the sealing performance;

[0035] Use the fixing bolt 4 to pass through the through slot of the seal ring mounting bracket 8, and symmetrically weld it on the end face of the fan volute 5 to fix the seal ring mounting bracket 8;

[0036] Insert the skeleton seal ring 1 into the inner recess part of the seal ring mounting bracket 8 in the correct installation direction, and make sure that the two are tightly matched;

[0037] Align the center holes of the seal ring axial limiting plate 3 and the seal ring mounting bracket 8 with the transmission shaft 7, and install the seal ring axial limiting plate 3 between the skeleton seal ring 1 and the driving motor, ensuring that the four through slots of the limiting plate are matched with the fixing bolt 4;

[0038] Use the fixing bolt 4 to pass through the through slot of the seal ring axial limiting plate 3, and use the stainless steel nut 2 to fix the whole assembly together;

[0039] After completing the assembly, check all the contact surfaces and connection points to ensure that there is no leakage and the sealing performance is good, and after the assembly is completed, necessary tests such as running test are carried out to verify the sealing performance and overall function of the shaft seal assembly.

[0040] The above merely is the preferred implementation manner of the present application, and it should be noted that, for the ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and deformations can be made, and these improvements and deformations should also be considered as the protection scope of the present application.

Claims

1. A shaft seal assembly for a sealing dehumidifying fan, characterized in that, The device includes a skeleton sealing ring (1), a sealing ring axial limiting plate (3), a fan volute (5), a drive shaft (7), and a sealing ring mounting bracket (8). The sealing ring mounting bracket (8) is connected to the fan volute (5). The sealing ring mounting bracket (8) has a concave center, and the skeleton sealing ring (1) is installed in the concave center. One end of the drive shaft (7) is connected to the fan impeller (6), and the other end passes through the center hole of the skeleton sealing ring (1) and the sealing ring axial limiting plate (3) and is connected to the drive motor. The sealing ring axial limiting plate (3) is connected to the fan volute (5).

2. The sealing and dehumidifying fan shaft seal assembly according to claim 1, characterized in that, The sealing ring mounting bracket (8) is a disc-shaped structure with a hollow center.

3. The sealing and dehumidifying fan shaft seal assembly according to claim 2, characterized in that, The sealing ring mounting bracket (8) and the sealing ring axial limiting plate (3) are provided with horizontal and vertical through grooves at their maximum diameter edges. The through grooves are connected to a plurality of fixing bolts (4) provided on the end face of the fan volute (5). The fixing bolts (4) pass through the through grooves to screw the fan volute (5) to the sealing ring mounting bracket (8) and the sealing ring axial limiting plate (3).

4. The sealing and dehumidifying fan shaft seal assembly according to claim 3, characterized in that, Both the sealing ring mounting bracket (8) and the sealing ring axial limiting plate (3) are made of stainless steel.

5. The sealing and dehumidifying fan shaft seal assembly according to claim 4, characterized in that, The mounting surface of the sealing ring mounting bracket (8) is also provided with multiple threaded holes (10), which are threadedly connected to the fixing bolt (4).

6. The sealing and dehumidifying fan shaft seal assembly according to claim 1, characterized in that, The sealing ring axial limiting plate (3) is a flat disc structure.

7. The sealing and dehumidifying fan shaft seal assembly according to claim 6, characterized in that, The sealing ring axial limiting plate (3) is provided with a first central hole. The drive shaft (7) passes through the first central hole and is installed between the skeleton sealing ring (1) and the drive motor. The inner recess of the sealing ring mounting bracket (8) is provided with a second central hole. During assembly, the drive shaft (7) passes through the second central hole.

8. The sealing and dehumidifying fan shaft seal assembly according to claim 7, characterized in that, The diameters of the first and second central holes are compatible with the model of the skeleton sealing ring (1).

9. The sealing and dehumidifying fan shaft seal assembly according to claim 8, characterized in that, The model of the skeleton sealing ring (1) is compatible with the diameter parameters of the drive shaft (7).

10. The sealing and dehumidifying fan shaft seal assembly according to claim 1, characterized in that, An annular sealing gasket (9) is installed on the contact surface between the sealing ring mounting bracket (8) and the fan volute (5).

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