Impeller seat ring sealing structure

Abstract

The utility model discloses an impeller seat ring sealing structure, which relates to the technical field of impeller seat ring sealing and comprises an impeller body. The seat ring is arranged in a shaft hole of a wheel shell of the impeller body, a pressing groove is formed in the end, located outside an inner cavity of the impeller, of the seat ring, and first positioning grooves distributed along the pressing groove are formed in the inner wall of the pressing groove; the stainless steel pressing ring is pressed in the pressing groove; the first sealing ring is pressed in the first positioning groove by the stainless steel pressing ring; an annular limiting groove is formed in the position, corresponding to the stainless steel pressing ring, of the rotating disc, and the inner wall of the stainless steel pressing ring extends into the limiting groove; the sealing device has the advantages of convenience in use, good sealing performance and the like.

Description

Technical Field

[0001] This utility model relates to the technical field of impeller seat ring sealing, and in particular to an impeller seat ring sealing structure. Background Technology

[0002] The moving blades of the fan are all installed in the shaft hole of the impeller through the seat ring. The seat ring and the rotating handle of the blade rotate relative to each other during use. During long-term rotation, the sealing performance will decrease, causing some substances in the airflow pulled by the fan to enter the impeller and cause internal corrosion of the impeller. Therefore, this application sets a sealing structure between the seat ring and the blade handle to reduce the entry of corrosive substances into the impeller. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an impeller seat ring sealing structure to solve the problem of poor sealing performance of the impeller seat ring in the prior art described in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an impeller seat ring sealing structure, comprising...

[0005] Impeller body;

[0006] A seat ring is disposed in the shaft hole of the impeller body housing. The end of the seat ring located outside the impeller cavity has a pressure groove, and the inner wall of the pressure groove has a first positioning groove distributed along the pressure groove.

[0007] A stainless steel pressure ring is pressed into the pressure groove;

[0008] The first sealing ring is pressed into the first positioning groove by a stainless steel pressure ring;

[0009] The turntable has an annular limiting groove corresponding to the position of the stainless steel pressure ring, and the inner wall of the stainless steel pressure ring extends into the limiting groove.

[0010] Preferably, the inner wall of the seat ring is provided with an annular second positioning groove corresponding to the position of the turntable, and the second positioning groove has a second sealing ring, which is pressed into the second positioning groove by the turntable.

[0011] Preferably, the outer wall of the impeller body is provided with a plurality of U-shaped pressure plates. The pressure plates are elastic and are arranged around the turntable. One end of the pressure plate is fixedly mounted on the impeller body, and the other end of the pressure plate faces the pressure groove. The stainless steel pressure ring has a notch corresponding to the position of the pressure plate.

[0012] Preferably, the surface of the stainless steel pressure ring is provided with a plurality of grooves, and the grooves and notches are staggered, with one end of the pressure plate extending into the groove.

[0013] The beneficial effects of adopting the above technical solutions are:

[0014] This application features a stainless steel pressure ring that can be press-fitted into the limiting groove and pressing groove of the turntable, allowing the stainless steel pressure ring to press the first sealing ring into the first positioning groove to achieve a seal. At the same time, the second sealing ring can further improve the sealing performance. In order to prevent the stainless steel pressure ring from deforming, a pressure plate is provided to apply pressure to the stainless steel pressure ring, making it less prone to deformation. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of an impeller seat ring sealing structure according to this utility model.

[0016] Figure 2 This is a top view of an impeller seat ring sealing structure according to this utility model.

[0017] Figure 3 This is a top view of the seat ring and impeller body of this utility model.

[0018] Figure 4 This is a top view of the stainless steel pressure ring of this utility model.

[0019] Figure 5 This is a schematic diagram of the tablet compression process of this utility model.

[0020] The components include: impeller body 10, seat ring 20, blade stalk 30, turntable 40, blade 41, first sealing ring 50, first positioning groove 51, stainless steel pressure ring 60, pressure groove 61, limiting groove 62, second sealing ring 70, second positioning groove 71, pressure plate 80, stop groove 81, and notch 82. Detailed Implementation

[0021] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-5 In this first embodiment, an impeller seat ring sealing structure includes...

[0023] Impeller body 10;

[0024] A seat ring 20 is disposed in the shaft hole of the impeller body 10. The end of the seat ring 20 located outside the impeller cavity has a pressure groove 61. The inner wall of the pressure groove 61 has a first positioning groove 51 distributed along the pressure groove 61.

[0025] A stainless steel pressure ring 60 is pressed into the pressure groove 61;

[0026] The first sealing ring 50 is pressed into the first positioning groove 51 by the stainless steel pressure ring 60;

[0027] The turntable 40 has an annular limiting groove 62 corresponding to the position of the stainless steel pressure ring 60, and the inner wall of the stainless steel pressure ring 60 extends into the limiting groove 62.

[0028] This embodiment is implemented as follows:

[0029] In use, the stainless steel pressure ring 60 is heated and expanded, and then pressed into the pressure groove 61. When the stainless steel pressure ring 60 cools, it will shrink, causing the inner ring of the stainless steel pressure ring 60 to enter the limiting groove 62. This achieves the positioning of the stainless steel pressure ring 60. At this time, the stainless steel pressure ring 60 can press the first sealing ring 50 into the first positioning groove 51, and the sealing performance is achieved through the first sealing ring 50 and the stainless steel pressure ring 60.

[0030] Please see Figure 1 The inner wall of the seat ring 20 is provided with an annular second positioning groove 71 corresponding to the position of the turntable 40. The second positioning groove 71 contains a second sealing ring 70, which is pressed into the second positioning groove 71 by the turntable 40.

[0031] The second sealing ring 70 of this application is positioned in the second positioning groove 71, which can further increase the sealing performance. The second sealing ring 70 of this application is wear-resistant and is a ceramic sealing ring.

[0032] Please see Figure 2 , 4 5. Several U-shaped pressure plates 80 are provided on the outer wall of the impeller body 10. The pressure plates 80 are elastic. Several pressure plates 80 surround the turntable 40. One side wall of the pressure plate 80 is fixed on the impeller body 10, and the other side wall faces the pressure groove 61. The stainless steel pressure ring 60 has a notch 82 corresponding to the position of the pressure plate 80.

[0033] This application utilizes the sidewall of the pressure plate 80 to apply pressure to the outer wall of the stainless steel pressure ring 60, making the stainless steel pressure ring 60 less prone to deformation. During pressing, the notch 82 of the stainless steel pressure ring 60 is aligned with the pressure plate 80, which does not hinder the stainless steel pressure ring 60 from entering the pressing groove 61. Because the pressure line 80 is elastic, bending the pressure plate 80 to deform it allows one sidewall of the pressure plate 80 to be pressed onto the stainless steel pressure ring 60.

[0034] Please see Figure 2 , 4 The stainless steel pressure ring 60 has several grooves 81 on its surface. The grooves 81 and notches 82 are staggered. The grooves 81 are used for one end of the pressure plate 80 to extend into.

[0035] This application allows the sidewall of the pressure plate 80 to be inserted through the surface groove 81 of the stainless steel pressure ring 60.

[0036] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A sealing structure for an impeller seat ring, characterized in that, include Impeller body; A seat ring is disposed in the shaft hole of the impeller body housing. The end of the seat ring located outside the impeller cavity has a pressure groove, and the inner wall of the pressure groove has a first positioning groove distributed along the pressure groove. A stainless steel pressure ring is pressed into the pressure groove; The first sealing ring is pressed into the first positioning groove by a stainless steel pressure ring; The turntable has an annular limiting groove corresponding to the position of the stainless steel pressure ring, and the inner wall of the stainless steel pressure ring extends into the limiting groove.

2. The impeller seat ring sealing structure according to claim 1, characterized in that, The inner wall of the seat ring is provided with an annular second positioning groove corresponding to the position of the turntable. The second positioning groove contains a second sealing ring, which is pressed into the second positioning groove by the turntable.

3. The impeller seat ring sealing structure according to claim 1, characterized in that, The outer wall of the impeller body is provided with several U-shaped pressure plates. The pressure plates are elastic and are arranged around the turntable. One end of the pressure plate is fixed to the impeller body, and the other end of the pressure plate faces the pressure groove. The stainless steel pressure ring has a notch corresponding to the position of the pressure plate.

4. The impeller seat ring sealing structure according to claim 3, characterized in that, The surface of the stainless steel pressure ring is provided with several grooves, and the positions of these grooves and notches are staggered. The grooves are used for one end of the pressure plate to extend into the groove.

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