Axial sealing device

Abstract

The utility model relates to the technical field of air blower shaft sealing, in particular to an axial sealing device which comprises a sleeve frame, a rotating shaft is inserted into the sleeve frame, a first groove is formed in one end of the sleeve frame, a sealing ring is connected to the first groove in a clamping mode and makes contact with the rotating shaft, and a second groove is formed in the sleeve frame and makes contact with the rotating shaft in a clamping mode. The second groove is connected with two symmetrically-arranged elastic extrusion mechanisms, each elastic extrusion mechanism is connected with a sealing gasket, and each sealing gasket makes contact with the rotating shaft. The rotating shaft is in contact with the sealing gasket to extrude the sealing gasket, the sealing gasket extrudes the elastic extrusion mechanism, the elastic force generated after the elastic extrusion mechanism is pressed and the elastic force generated by the elastic extrusion mechanism push and press the sealing gasket, so that the sealing gasket is in tight contact with the rotating shaft, and after the rotating shaft rotates, the elastic force generated by the elastic extrusion mechanism pushes and presses the sealing gasket. After the rotating shaft rotates, no gap exists between the sealing gasket and the rotating shaft, and the sealing effect on the rotating shaft is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of blower shaft sealing, in particular to an axial sealing device. Background Art

[0002] In the recycling and purification workshop of the coking enterprise, a large gas blower is used in the condensing and blowing section. Its main function is to extract the gas from the coke oven and send it to the subsequent section for further processing. Since the coke oven gas contains about 5% carbon monoxide, which is harmful to the human body and is flammable and explosive, the sealing of the gas blower is very important as the main equipment for transporting coke oven gas.

[0003] The existing gas blower has an air inlet and an air outlet. The internal air cavity is equipped with an impeller fixed on the central main shaft. The rotation of the impeller generates a pressure difference to cause the blower to exhaust air. In order to prevent gas leakage, the contact between the shaft and the shell needs to be sealed. When the gas blower is working, the shaft is in a rotating state. After the rotating shaft and the sealing gasket are in contact for a long time, the contact surface between the sealing gasket and the shaft is easily worn, resulting in a gap between the sealing gasket and the shaft, thereby reducing the sealing effect of the shaft. Utility Model Content

[0004] The utility model aims to provide an axial sealing device to solve the problem in the prior art that the contact surface between the sealing gasket and the rotating shaft is easily worn, resulting in a gap between the sealing gasket and the rotating shaft, thereby reducing the sealing effect on the rotating shaft.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An axial sealing device is designed, including a sleeve carrier, wherein:

[0007] A rotating shaft is inserted into the sleeve frame, a first groove is provided at one end of the sleeve frame, a sealing ring is clamped on the first groove, and the sealing ring is in contact with the rotating shaft, a second groove is provided in the sleeve frame, and two symmetrically arranged elastic extrusion mechanisms are connected to the second groove, each of the elastic extrusion mechanisms is connected to a sealing gasket, and each of the sealing gaskets is in contact with the rotating shaft.

[0008] Preferably, an anti-corrosion layer is sprayed on the sleeve frame.

[0009] Preferably, the sealing gasket is a rubber sealing gasket.

[0010] Preferably, the elastic extrusion mechanism includes a pressure plate, which is slidably connected to the second groove, the pressure plate is fixedly connected to the sealing gasket, a movable rod is fixedly connected to the pressure plate, one end of the movable rod extends out of the second groove, a spring is fixedly connected to the pressure plate, one end of the spring is fixedly connected to the second groove, and the movable rod passes through the spring.

[0011] Preferably, the pressure plate is an arc-shaped plate, and the concave surface of the pressure plate matches the rotating shaft.

[0012] The utility model provides an axial sealing device, which has the following beneficial effects:

[0013] The sealing gasket is squeezed after the rotating shaft contacts it, and the sealing gasket squeezes the elastic squeezing mechanism. The elastic force generated by the elastic squeezing mechanism after being pressed pushes the sealing gasket, so that the sealing gasket is in close contact with the rotating shaft. After the rotating shaft rotates, the elastic force generated by the elastic squeezing mechanism pushes the sealing gasket, so that after the rotating shaft rotates, no gap will appear between the sealing gasket and the rotating shaft, thereby improving the sealing effect of the rotating shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the structure of an axial sealing device proposed by the utility model Figure 1 ;

[0015] Figure 2 A schematic diagram of the structure of an axial sealing device proposed by the utility model Figure 2 ;

[0016] Figure 3 This is a schematic cross-sectional view of an axial sealing device proposed by the utility model;

[0017] Figure 4 The utility model is a schematic diagram of the structure of an elastic extrusion mechanism in an axial sealing device.

[0018] In the figure: 1, sleeve frame; 2, first groove; 3, sealing ring; 4, second groove; 5, elastic extrusion mechanism; 6, sealing pad; 51, movable rod; 52, pressure plate; 53, spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Example 1

[0021] Reference Figure 1-3 , an axial sealing device, comprising a sleeve frame 1, wherein:

[0022] A rotating shaft is inserted into the sleeve frame 1, and an anti-corrosion layer is sprayed on the sleeve frame 1, and the anti-corrosion layer is a polyethylene anti-corrosion layer. A first groove 2 is opened at one end of the sleeve frame 1, and a sealing ring 3 is clamped on the first groove 2, and the sealing ring 3 is in contact with the rotating shaft. A second groove 4 is opened in the sleeve frame 1, and two symmetrically arranged elastic extrusion mechanisms 5 are connected to the second groove 4. Each elastic extrusion mechanism 5 is connected to a sealing gasket 6, which is a rubber sealing gasket, and each sealing gasket 6 is in contact with the rotating shaft.

[0023] Working process: after the rotating shaft passes through the sleeve frame 1, the rotating shaft contacts the sealing ring 3 and the sealing gasket 6. The two sealing gaskets 6 form a sealing ring gasket. The sealing ring 3 seals the gap between the front end of the sleeve frame 1 and the rotating shaft. At the same time, the rotating shaft squeezes the sealing gasket 6 after contacting it. The sealing gasket 6 squeezes the elastic squeezing mechanism 5. The elastic force generated by the elastic squeezing mechanism 5 after being pressed pushes the sealing gasket 6, so that the sealing gasket 6 is in close contact with the rotating shaft. After the rotating shaft rotates, the elastic force generated by the elastic squeezing mechanism 5 pushes the sealing gasket 6, so that after the rotating shaft rotates, there is no gap between the sealing gasket 6 and the rotating shaft, thereby improving the sealing effect of the rotating shaft.

[0024] Example 2

[0025] Reference Figure 4 As another preferred embodiment of the utility model, the difference from the embodiment 1 is that the elastic extrusion mechanism 5 includes a pressing plate 52, the pressing plate 52 is slidably connected to the second groove 4, the pressing plate 52 is fixedly connected to the sealing gasket 6, the pressing plate 52 is an arc-shaped plate, the concave surface of the pressing plate 52 cooperates with the rotating shaft, the pressing plate 52 is fixedly connected to a movable rod 51, one end of the movable rod 51 extends outside the second groove 4, the pressing plate 52 is fixedly connected to a spring 53, one end of the spring 53 is fixedly connected to the second groove 4, and the movable rod 51 penetrates Through the spring 53, when the rotating shaft is inserted into the sleeve frame 1, the pressure plate 52 is pulled by the movable rod 51, so that the pressure plate 52 is retracted into the second groove 4, and the pressure plate 52 moves to squeeze the spring 53. The spring 53 generates elastic force after being compressed. After the rotating shaft is inserted into the sleeve frame 1, the movable rod 51 is released. Under the elastic force of the spring 53, the pressure plate 52 moves downward through the sealing gasket 6 to contact the rotating shaft. Under the compression of the elastic force of the spring 53, the sealing gasket 6 is in close contact with the rotating shaft, and there is no gap between the sealing gasket 6 and the rotating shaft, thereby improving the sealing effect of the rotating shaft.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An axial sealing device, characterized in that: It comprises a sleeve frame (1), wherein: A rotating shaft is inserted into the sleeve (1), a first groove (2) is provided at one end of the sleeve (1), a sealing ring (3) is clamped on the first groove (2), and the sealing ring (3) is in contact with the rotating shaft, a second groove (4) is provided in the sleeve (1), and two symmetrically arranged elastic extrusion mechanisms (5) are connected to the second groove (4), each of the elastic extrusion mechanisms (5) is connected to a sealing gasket (6), and each of the sealing gaskets (6) is in contact with the rotating shaft.

2. The axial sealing device according to claim 1, characterized in that: An anti-corrosion layer is sprayed on the sleeve frame (1).

3. The axial sealing device according to claim 1, characterized in that: The sealing gasket (6) is a rubber sealing gasket.

4. The axial sealing device according to claim 1, characterized in that: The elastic extrusion mechanism (5) comprises a pressure plate (52), the pressure plate (52) being slidably connected to the second groove (4), the pressure plate (52) being fixedly connected to the sealing gasket (6), a movable rod (51) being fixedly connected to the pressure plate (52), one end of the movable rod (51) extending out of the second groove (4), a spring (53) being fixedly connected to the pressure plate (52), one end of the spring (53) being fixedly connected to the second groove (4), and the movable rod (51) passing through the spring (53).

5. The axial sealing device according to claim 4, characterized in that: The pressing plate (52) is an arc-shaped plate, and the concave surface of the pressing plate (52) matches the rotating shaft.

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