CN-224200854-U - Impeller sealing device

CN224200854UCN 224200854 UCN224200854 UCN 224200854UCN-224200854-U

Abstract

The impeller sealing device consists of a cover plate, a pressing plate, a rubber ring, an annular sealing groove and screws, wherein a blade nest is welded on a hub, a blade tray is arranged in the blade nest, a blade shaft is arranged under the blade tray, a blade seat is arranged under the blade, and an adjusting arm is arranged on the blade shaft; the wheel hub is provided with the annular sealing groove, the annular sealing groove is internally provided with the rubber ring, the rubber ring is higher than the surface of the wheel hub, the rubber ring is pressed with the cover plate, and the gap between the blade seat and the blade nest is sealed by the rubber ring.

Inventors

XIE HAIJUN
ZHENG XINHUA
LI CHUNPING
XU JIANFENG
SHI LEI
CHANG FEI
LI SHILONG

Assignees

山西巨龙风机有限公司

Dates

Publication Date: 20260505
Application Date: 20250628

Claims (1)

1. The impeller sealing device comprises a cover plate, a pressing plate, a rubber ring, an annular sealing groove and screws, wherein a blade nest is welded on a hub, a blade tray is arranged in the blade nest, a blade shaft is arranged under the blade tray, a blade seat is arranged under the blade, and an adjusting arm is arranged on the blade shaft.

Description

Impeller sealing device Technical Field The utility model relates to an impeller sealing device. Background The blade angle of main fan impeller of mine can be adjusted, and the blade is accomplished blade angle through the regulating arm and is adjusted, but because the medium that the mine was taken out contains steam and impurity, dust great, often leads to the clearance between blade seat and the blade nest to be blocked by impurity, appears the unable condition of adjusting of blade angle, can only demolish the clearance blade seat with the blade during maintenance and can continue the adjustment behind impurity between the blade nest, maintenance work is troublesome, and work load is big, and is periodic length, unsafe. Disclosure of Invention The utility model aims to overcome the defects of the prior art and provide an impeller sealing device without dismantling blades. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: The impeller sealing device comprises a cover plate, a pressing plate, a rubber ring, an annular sealing groove and screws, wherein a blade nest is welded on a hub, a blade tray is arranged in the blade nest, a blade shaft is arranged under the blade tray, a blade seat is arranged under the blade, and an adjusting arm is arranged on the blade shaft. Compared with the prior art, the utility model has the beneficial effects that the mine dust water vapor can be blocked outside the rubber ring, the gap between the blade seat and the blade nest can not be blocked by impurities, the condition that the blade angle can not be adjusted can not occur, and the utility model is safe and reliable. Drawings FIG. 1 is a schematic diagram of a prior art structure; FIG. 2 is a top view of FIG. 1; FIG. 3 is a schematic diagram of an embodiment of the present utility model; FIG. 4 is a top view of FIG. 3; FIG. 5 is a schematic view of two crescent shaped platens 2; fig. 6 is a schematic structural view of the cover plate 1; Fig. 7 is a schematic structural view of the rubber ring 3; fig. 8 is a schematic view of the structure of the blade 5 and the blade seat 14; fig. 9 is a schematic view of the structure of the blade tray 15 and the blade shaft 7; Fig. 10 is a schematic view of the lateral planing surface of the hub 6 with the blade pocket 12 welded thereto. The figure symbol illustration comprises a pressing plate 1, a cover plate 2, a rubber ring 3, a blade 5, a hub 6, a blade shaft 7, a gasket 8, an adjusting arm 9, a spring pad 10, an adjusting disc 11, a blade nest 12, a bolt 13, a blade seat 14, a blade tray 15, an annular sealing groove 16 and a screw 17. Detailed Description Fig. 1 is a schematic structural view of the prior art, fig. 2 is a top view of fig. 1, a blade nest 12 is welded on a hub 6 of the prior art, fig. 10 is a schematic structural view of a lateral planing surface of the hub 6 welded with the blade nest 12, a blade tray 15 is arranged in the blade nest 12, a blade shaft 7 is arranged under the blade tray 15, a blade seat 14 is arranged under the blade 5, an adjusting arm 9 is arranged on the blade shaft 7, the blade 5 and the blade shaft 7 are connected with an adjusting disc 11 through the adjusting arm 9, and the adjusting disc 11 axially moves to drive the adjusting arm 9 to rotate so as to realize the rotation of the blade 5 to finish angle adjustment. Because a gap exists between the blade seat 14 and the blade nest 12, dust and moisture pumped by the fan can block the gap between the blade seat 14 and the blade nest 12, so that the blade angle is difficult to adjust, the blade is required to be detached for cleaning, the maintenance work is troublesome, the workload is large, the period is long, the blade nest 12 and the blade seat 14 are easy to damage, and the blade is unsafe. Examples Fig. 3 is a schematic structural view of an embodiment of the utility model, fig. 4 is a top view of fig. 3, an impeller sealing device of the utility model comprises a cover plate 1, a pressing plate 2, a rubber ring 3, an annular sealing groove 16 and screws 17, a blade nest 12 is welded on a hub 6, a blade tray 15 is arranged in the blade nest 12, a blade shaft 7 is arranged below the blade tray 15, a blade seat 14 is arranged below a blade 5, fig. 8 is a schematic structural view of the blade 5 and the blade seat 14, and an adjusting arm 9 is arranged on the blade shaft 7, and is characterized in that the blade seat 14 is provided with two crescent pressing plates 2, fig. 5 is a schematic view of the two crescent pressing plates 2, the blade seat 14 is connected with the blade tray 15 through the pressing plate 2 and the screws 13, the cover plate 2 is provided with the cover plate 1, fig. 6 is a schematic structural view of the cover plate 1 is fixed on the pressing plate 2 through the screws 17, the hub 6 is provided with the annular sealing groove 16, the annular sealing groove 16 is provided with the rubber ring 3 in the ann