Rubber bearing for submersible pump rotating shaft

Abstract

A rubber bearing sleeve is located in the center of each stage of volute and used for positioning and rotating the shaft, the rubber bearing is in a circular tube shape, a plurality of grooves are evenly distributed in the circumference of the inner wall of the rubber bearing, the grooves are formed in the length direction of the rubber bearing, and the bottom faces of the grooves are inwards-concave arc faces. The top face between every two adjacent grooves is an outwards-protruding arc face, the arc faces are tangent to the circumferential outer wall of the submersible pump rotating shaft, sealing plates are arranged at the two ends of the rubber bearing, and the sealing plates are in a circular ring shape and are integrally formed with the rubber bearing. The utility model aims to solve or at least alleviate the problem that the existing rubber bearing for the submersible pump is not ideal in silt resistance, and provides the rubber bearing for the rotary shaft of the submersible pump.

Description

Technical Field

[0001] The utility model belongs to the technical field of submersible pumps, and in particular relates to a rubber bearing for a rotating shaft of a submersible pump. Background Art

[0002] At present, most submersible pumps have original submersible pump rubber bearings. Due to the reflux phenomenon of the submersible pump rubber bearing guide groove, my country's submersible pumps have been in low efficiency and high cost operation. At the same time, the original submersible pump rubber bearing has poor anti-sediment performance, and the bearings and shafts of the submersible pump are very easy to wear, reducing the service life of the submersible pump. The Chinese utility model patent with the authorization announcement number CN2537840Y and the patent number ZL02232264.7 discloses a submersible pump anti-sediment rubber bearing. Although this submersible pump rubber bearing has a certain anti-sediment effect on the submersible pump, due to the water flow There will be a certain pressure, the pressure will squeeze the sediment into the guide groove, the guide groove will increase, and the sediment will pass through the guide groove, so its anti-sediment effect is not very ideal. Utility Model Content

[0003] The utility model aims to overcome the deficiencies in the prior art, solve or at least alleviate the problem that the anti-silt effect of the current submersible pump rubber bearing is not very ideal, and provide a rubber bearing for a submersible pump shaft.

[0004] The utility model is realized by the following technical solutions:

[0005] A rubber bearing for a submersible pump shaft, the rubber bearing being installed at the center of each stage of the volute, the rubber bearing being in a cylindrical shape, a plurality of grooves being evenly distributed on the circumference of the inner wall of the rubber bearing, the grooves being arranged along the length direction of the rubber bearing, the bottom surface of the groove being an inwardly concave arc surface, the top surface between two adjacent grooves being an outwardly convex arc surface and the arc surface being tangent to the circumferential outer wall of the submersible pump shaft;

[0006] Both ends of the rubber bearing are provided with sealing plates, and the sealing plates are annular and are integrally formed with the rubber bearing.

[0007] In order to further realize the utility model, the following technical solutions can be preferably selected:

[0008] Preferably, the circumferential inner wall of the sealing plate is in contact with the circumferential outer wall of the submersible pump shaft.

[0009] Preferably, the sealing plate has a thickness of 2 mm-5.0 mm.

[0010] Through the above technical solution, the beneficial effects of the utility model are:

[0011] The utility model is provided with sealing plates at both ends of the rubber bearing. The sealing plates fit moderately with the outer wall of the shaft. Water can normally enter the inside of the rubber bearing through the gap between the baffle plate and the shaft to achieve the lubrication effect. The sediment is blocked to the greatest extent by the baffle plate and cannot enter the inside of the rubber bearing, thereby reducing the wear of the sediment on the shaft and the rubber bearing and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the utility model;

[0013] Figure 2 is one of the structural cross-sectional views of the utility model;

[0014] Figure 3 is the second structural cross-sectional view of the utility model;

[0015] Wherein: 1 - rubber bearing; 2 - sealing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In the description of the present utility model, it should also be noted that, unless otherwise clearly defined and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0017] 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 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 in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0018] Embodiment 1:

[0019] As Figures 1-3 shown, a rubber bearing for a submersible pump rotating shaft is characterized in that the rubber bearing 1 is installed at the center of each stage of volute. The rubber bearing 1 is in a circular tubular shape. A plurality of grooves are evenly distributed on the inner wall circumference of the rubber bearing 1. The grooves are arranged along the length direction of the rubber bearing 1. The bottom surface of the groove is a concave arc surface. The top surface between two adjacent grooves is a convex arc surface and this arc surface is tangent to the circumferential outer wall of the submersible pump rotating shaft; Sealing plates 2 are arranged at both ends of the rubber bearing 1. The sealing plates 2 are in a circular ring shape and are integrally formed with the rubber bearing 1.

[0020] In the present utility model, sealing plates 2 are provided at both ends of the rubber bearing 1. The sealing plates 2 are moderately fitted to the outer wall of the shaft. Water can normally enter the inside of the rubber bearing 1 through the gap between the sealing plate 2 and the shaft to achieve the lubrication effect. The sediment is blocked to the greatest extent by the sealing plate 2 and cannot enter the inside of the rubber bearing 1, thereby reducing the wear of the sediment on the shaft and the rubber bearing 1 and extending the service life.

[0021] In order to optimize the product structure, in this embodiment, the inner circumferential wall of the sealing plate 2 is fitted to the outer circumferential wall of the submersible pump rotating shaft.

[0022] In order to ensure the water outlet and anti-sediment effect, the thickness of the sealing plate 2 is 2 mm - 5.0 mm. In this embodiment, the thickness of the sealing plate 2 is 2 mm.

[0023] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described 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 rubber bearing for a submersible pump shaft, characterized in that: The rubber bearing (1) is installed at the center of each stage of the volute, the rubber bearing (1) is in the shape of a circular tube, a plurality of grooves are evenly distributed on the circumference of the inner wall of the rubber bearing (1), the grooves are arranged along the length direction of the rubber bearing (1), the bottom surface of the grooves is an inwardly concave arc surface, the top surface between two adjacent grooves is an outwardly convex arc surface, and the arc surface is tangent to the circumferential outer wall of the submersible pump shaft; Both ends of the rubber bearing (1) are provided with sealing plates (2); the sealing plates (2) are annular and are integrally formed with the rubber bearing (1).

2. The rubber bearing for a submersible pump shaft according to claim 1, characterized in that: The circumferential inner wall of the sealing plate (2) is fitted to the circumferential outer wall of the submersible pump shaft.

3. The rubber bearing for a submersible pump shaft according to claim 1, characterized in that: The thickness of the sealing plate (2) is 2 mm to 5.0 mm.

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