A vertical water pump shaft leakage adjusting device

Abstract

The utility model provides a kind of vertical water pump shaft leakage amount adjusting device, the vertical water pump has pump shaft, including bearing box, original end cover and adjusting end cover, wherein, the pump shaft passes through the bearing box, located the pump shaft outside on the side of the bearing box is provided with outer thread section, original end cover and adjusting end cover are set on the outer thread section;Relative to the adjusting end cover, the original end cover is close to the bearing box;By rotating the adjusting end cover can make the pump shaft move along axial direction, and then the shaft leakage amount of the vertical water pump can be adjusted.Utilize the adjusting device to adjust the shaft leakage amount of vertical water pump, without disassembling bearing box, reduce the difficulty of overhaul, can quickly restore production, extend the running cycle of equipment, save spare parts cost.

Description

Technical Field

[0001] This utility model relates to the field of water pump technology, and in particular to a vertical water pump shaft misalignment adjustment device. Background Technology

[0002] Shaft movement refers to the amount of free axial movement of the pump shaft during operation. When a vertical pump starts, stops, or changes operating conditions, the rotor and casing expand and contract due to temperature differences, which needs to be compensated for by allowing space for shaft movement. Operating conditions such as temperature changes, hydraulic loads, and mechanical deformation can also cause changes in shaft movement.

[0003] Vertical water pumps typically use thrust bearings to limit axial displacement. Excessive axial movement can lead to problems such as bearing overload or wear, seal failure or leakage. Furthermore, excessive axial movement can cause dynamic imbalance in the rotor, exacerbating vibration. If the axial movement is not adjusted promptly, the pump shaft is prone to wear and failure.

[0004] When adjusting the shaft misalignment of a vertical water pump, the bearing housing must first be removed. After the shaft misalignment is adjusted, the bearing housing must be reinstalled. The maintenance process is cumbersome and time-consuming, which increases the labor intensity of maintenance personnel and increases costs. Utility Model Content

[0005] The purpose of this utility model is to provide a vertical water pump shaft misalignment adjustment device, which reduces the difficulty of maintenance, enables rapid resumption of production, extends the equipment operating cycle, and saves spare parts costs.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vertical water pump shaft misalignment adjustment device is disclosed. The vertical water pump has a pump shaft, including a bearing housing, an original end cover, and an adjusting end cover. The pump shaft passes through the bearing housing. An external threaded section is provided on the pump shaft located outside the bearing housing. The original end cover and the adjusting end cover are fitted onto the external threaded section. The original end cover is closer to the bearing housing than the adjusting end cover. By rotating the adjusting end cover, the pump shaft can be moved axially, thereby adjusting the shaft misalignment of the vertical water pump.

[0008] Furthermore, in the aforementioned vertical water pump shaft axial displacement adjustment device, the thread of the external thread section is a fine thread.

[0009] Furthermore, in the aforementioned vertical water pump shaft axial displacement adjustment device, the length of the external thread section is 80mm.

[0010] Furthermore, in the above-mentioned vertical water pump shaft axial displacement adjustment device, a limit sensor is provided at the end of the pump shaft located outside the adjustment end cover.

[0011] Furthermore, in the above-mentioned vertical water pump shaft misalignment adjustment device, a limiting element is provided on the pump shaft located outside the adjustment end cover.

[0012] Furthermore, in the above-mentioned vertical water pump shaft misalignment adjustment device, the limiting member and the pump shaft are detachably connected.

[0013] Analysis shows that this utility model discloses a vertical water pump shaft misalignment adjustment device. The shaft misalignment of the vertical water pump can be adjusted by using this adjustment device without disassembling the bearing housing, which reduces the difficulty of maintenance, enables rapid resumption of production, extends the operating cycle of the equipment, and saves spare parts costs. Attached Figure Description

[0014] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. Wherein:

[0015] Figure 1 A schematic diagram of the structure of an embodiment of this utility model.

[0016] Explanation of reference numerals in the attached diagram: 1. Pump shaft; 2. Original end cover; 3. Adjusting end cover; 4. Bearing housing. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Various examples are provided by way of explanation of the present invention and not by way of limitation. In fact, those skilled in the art will recognize that modifications and variations can be made to the present invention without departing from the scope or spirit of the invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention encompass such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0018] In the description of this utility model, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. The terms "connected," "linked," and "set up" used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a direct connection or an indirect connection through intermediate components; a wired connection, a radio connection, or a wireless communication signal connection. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0019] The accompanying drawings illustrate one or more examples of the present invention. The detailed description uses numerals and letters to refer to features in the drawings. Similar or analogous reference numerals in the drawings and description have been used to refer to similar or analogous parts of the present invention. As used herein, the terms “first,” “second,” and “third,” etc., are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of individual components.

[0020] like Figure 1 As shown in the embodiment of this utility model, a vertical water pump shaft misalignment adjustment device is provided. The vertical water pump has a pump shaft 1. The adjustment device includes a bearing housing 4, an original end cover 2, and an adjusting end cover 3. The pump shaft 1 passes through the bearing housing 4. An external thread section is provided on the pump shaft 1 located outside the bearing housing 4. The original end cover 2 and the adjusting end cover 3 are fitted onto the external thread section. The original end cover 2 is closer to the bearing housing 4 than the adjusting end cover 3. By rotating the adjusting end cover 3, the axial movement distance of the pump shaft 1 can be adjusted, thereby adjusting the shaft misalignment of the vertical water pump. This adjustment device adds an adjusting end cover 3 of the same specification as the original end cover 2 outside the original end cover 2. When it is necessary to adjust the shaft misalignment of the vertical water pump, rotating the adjusting end cover 3 allows the pump shaft 1 to move axially, thereby adjusting the shaft misalignment. The original end cover 2 is fixedly connected to the bearing housing and serves as a seal. This adjustment device can be used to adjust the shaft misalignment of a vertical water pump without disassembling the bearing housing 4. This effectively reduces the number of times the pump needs to be disassembled and installed for maintenance, prevents damage to other spare parts during maintenance, reduces maintenance difficulty, enables rapid resumption of production, extends the equipment's operating cycle, and saves on spare parts costs.

[0021] Furthermore, the thread of the external thread section is a fine thread.

[0022] Furthermore, the length of the external thread section is 80mm.

[0023] Furthermore, a limit sensor is provided at the end of the pump shaft 1 located outside the adjustment end cover 2, and the axial movement of the pump shaft 1 can be monitored online using the limit sensor.

[0024] Furthermore, a limiting component is provided on the pump shaft 1 located outside the adjusting end cover 2, and the limiting component is detachably connected to the pump shaft 1. After the shaft displacement is adjusted by rotating the adjusting end cover 2, the locking limiting component can fix the adjusting end cover 2 to prevent the adjusting end cover 2 from rotating during the operation of the vertical water pump.

[0025] The adjustment process is as follows: The bearing housing 4 is disassembled. An 80mm fine-pitch internal thread is machined on the pump shaft 1 outside the original end cover 2 of the bearing housing 4. Then, an adjusting end cover 3 of the same specification as the original end cover 2 is selected and installed on the pump shaft 1. A limit sensor is installed at the end of the pump shaft 1 outside the adjusting end cover 3, and then a limit component is installed on the pump shaft 1. The axial movement of the pump shaft 1 is adjusted by rotating the adjusting end cover 2. Simultaneously, the axial distance of the pump shaft 1 extending out of the bearing housing 4 is measured using calipers. When the caliper measurement meets the standard, the adjusting end cover 3 is locked using the limit component. The bearing housing 4 is reinstalled and a test rotation is performed. If there is no friction between the pump shaft 1 and the water impeller, it indicates that the axial movement has been adjusted correctly.

[0026] During the operation of the vertical water pump, the shaft movement of the pump shaft 1 is monitored online by the limit sensor. When the shaft movement needs to be adjusted, there is no need to disassemble the bearing housing 4 again. The shaft movement can be adjusted directly by rotating the adjustment end cover 3, which can quickly eliminate potential equipment hazards, reduce maintenance difficulty, and quickly restore production.

[0027] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0028] A vertical water pump shaft misalignment adjustment device is provided. This device can adjust the shaft misalignment of a vertical water pump without disassembling the bearing housing 4. It is simple and quick, can effectively and quickly eliminate potential equipment hazards, reduce maintenance difficulty, quickly restore production, extend the equipment's operating cycle, and save spare parts costs.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A vertical water pump shaft misalignment adjustment device, wherein the vertical water pump has a pump shaft, characterized in that, Includes bearing housing, original end cover, and adjusting end cover, among which, The pump shaft passes through the bearing housing, and an external thread section is provided on the pump shaft located outside one side of the bearing housing. An original end cap and an adjusting end cap are fitted on the external thread section. The original end cover is closer to the bearing housing than the adjusting end cover; Rotating the adjusting end cover allows the pump shaft to move axially, thereby adjusting the axial displacement of the vertical water pump.

2. The vertical water pump shaft misalignment adjustment device according to claim 1, characterized in that, The external thread section has a fine thread.

3. The vertical water pump shaft misalignment adjustment device according to claim 1, characterized in that, The length of the external thread section is 80mm.

4. The vertical water pump shaft misalignment adjustment device according to claim 1, characterized in that, A limit sensor is provided at the end of the pump shaft located outside the adjustment end cover.

5. The vertical water pump shaft misalignment adjustment device according to claim 1, characterized in that, A limiting element is provided on the pump shaft located outside the adjusting end cover.

6. The vertical water pump shaft misalignment adjustment device according to claim 5, characterized in that, The limiting component is detachably connected to the pump shaft.

Images