Energy-saving submersible sewage pump motor

Abstract

The utility model belongs to the technical field of motors, and provides an energy-saving submersible sewage pump motor, which comprises a motor base, a motor base upper cover is fixedly arranged at the top of the motor base through a plurality of bolts, a wire pressing nut is screwed on the motor base upper cover, and a cable is fixedly arranged on the motor base upper cover through the wire pressing nut; the engine base is connected with an oil chamber; by reducing the outer diameter of the stator iron core and lengthening the iron core, the overall size and weight of the sewage pump motor can be effectively reduced, after the radial diameter of the sewage pump motor is reduced, the sewage pump motor can be conveniently placed and used in a narrow space, and the use cost of raw materials can be effectively reduced under the condition that the original use functions are guaranteed; meanwhile, the groove shape and the number of turns of the stator winding are changed, the purpose of saving raw material varnished wires is achieved, and the production cost of corresponding shell castings is effectively reduced under the condition that the overall appearance of the sewage pump motor is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of motor technology, specifically an energy-saving submersible sewage pump motor. Background Technology

[0002] A sewage pump motor, typically referring to a motor used in a sewage pump, is the power source for the pump. The motor's rotation drives the impeller inside the pump, drawing sewage into the pump and discharging it. A sewage pump motor is a special type of motor designed specifically for sewage pumps, used to drive them in sewage discharge and treatment. It is widely used in sewage treatment plants, urban drainage systems, industrial wastewater treatment, and agricultural irrigation. However, currently manufactured sewage pump motors suffer from excessively large size and high production costs.

[0003] To address the problems raised in the background art, those skilled in the art have proposed an energy-saving submersible sewage pump motor. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides an energy-saving submersible sewage pump motor, thereby solving the problem of excessively high production costs of sewage pump motors in the prior art.

[0005] An energy-saving submersible sewage pump motor includes: a base, a base cover fixedly mounted on the top of the base by a plurality of bolts, a wire clamping nut screwed onto the base cover, and a cable fixedly mounted on the base cover by the wire clamping nut; an oil chamber is connected to the base, and an O-ring is provided between the base cover and the base.

[0006] Preferably, the stator winding and stator core are assembled inside the base by a pressure straightening machine, and the stator winding is embedded inside the stator core.

[0007] Preferably, a rotor core is provided inside the machine base, and a rotating shaft is hot-pressed inside the rotor core by a pressure straightening machine; a lower bearing seat is fixedly provided at the bottom of the machine base, and a support seat is provided inside both the upper cover of the machine base and the lower bearing seat; bearing two and bearing one are respectively placed at the top and bottom of the machine base through the bearing seats provided inside the upper cover of the machine base and the lower bearing seat.

[0008] Preferably, a mechanical seal is fixedly installed in the oil chamber, and mechanical oil is added to the oil chamber and the mechanical seal for lubrication.

[0009] Preferably, a skeleton oil seal is provided on the outside of the oil chamber to isolate solid impurities in the medium.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention effectively reduces the overall size and weight of the sewage pump motor by decreasing the outer diameter of the stator core and increasing the core length. After reducing the radial diameter of the sewage pump motor, it is easier to place and use in narrow spaces, and the cost of raw materials can be effectively reduced while ensuring the original functionality. At the same time, by changing the slot shape and the number of turns of the stator winding, the use of enameled wire is saved, which effectively reduces the production cost of the corresponding housing casting while reducing the overall size of the sewage pump motor. Attached Figure Description

[0012] Figure 1 This is an overall structural diagram of the sewage pump motor of this utility model;

[0013] Figure 2 This is a diagram of the stator core connection structure of this utility model;

[0014] Figure 3 This is a diagram showing the bottom connection structure of the sewage pump motor of this utility model.

[0015] In the picture:

[0016] 1. Cable; 2. Wire clamp nut; 3. Machine base cover; 4. Machine base; 5. Stator winding; 6. Stator core; 7. Rotor core; 8. Shaft; 9. Oil chamber; 10. Mechanical seal; 11. Frame oil seal; 12. Lower bearing housing; 13. Bearing 1; 14. Bearing 2; 15. O-ring. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0018] Example:

[0019] As attached Figure 1 and Figure 2 As shown:

[0020] This utility model provides a device comprising: a base 4, a base cover 3 fixedly mounted on the top of the base 4 by a plurality of bolts, a wire clamping nut 2 screwed onto the base cover 3, and a cable 1 fixedly mounted on the base cover 3 by the wire clamping nut 2; an oil chamber 9 is connected to the base 4, and an O-ring 15 is provided between the base cover 3 and the base 4.

[0021] refer to Figure 1 and Figure 2 The stator winding 5 and stator core 6 are assembled inside the base 4 by a pressure straightening machine, and the stator winding 5 is embedded inside the stator core 6.

[0022] After the stator winding 5 is embedded inside the stator core 6, it goes through processes such as end binding, shaping, pressure resistance test, impregnation, and drying to form the motor stator. Finally, it is installed into the frame 4 by a pressure straightening machine, thus completing the installation of the stator winding 5 and the stator core 6.

[0023] refer to Figure 1 and Figure 3 The base 4 is equipped with a rotor core 7, and a rotating shaft 8 is hot-pressed inside the rotor core 7 by a pressure straightening machine; a lower bearing seat 12 is fixedly installed at the bottom of the base 4, and a support seat is installed inside both the upper cover 3 of the base and the lower bearing seat 12; a second bearing 14 and a first bearing 13 are placed at the top and bottom of the base 4 respectively through the bearing seats installed inside the upper cover 3 of the base and the lower bearing seat 12.

[0024] During installation, the machined shaft 8 is first pressed into the heated rotor core 7 using a pressure straightening machine. After the rotor core 7 and shaft 8 have cooled, the rotor core 7 is then machined to the designed dimensions.

[0025] refer to Figure 1 and Figure 3 A mechanical seal 10 is fixedly installed inside the oil chamber 9, and mechanical oil is added to the oil chamber 9 and the mechanical seal 10 for lubrication;

[0026] After the mechanical seal 10 is installed in the oil chamber 9 and passes the atmospheric pressure test, an appropriate amount of mechanical lubricating oil is added for lubrication. The function of the mechanical seal 10 in the oil chamber 9 is to completely isolate the external medium of the entire sewage pump motor, so as to achieve the purpose of normal use of the stator winding 5, bearing 13 and bearing 14 in water and other media.

[0027] refer to Figure 1 and Figure 3 An external skeleton oil seal 11 is provided for the oil chamber 9 to isolate solid impurities in the medium, thereby effectively improving the service life of the mechanical seal 10.

[0028] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model.

[0029] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0030] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0031] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An energy-saving submersible sewage pump motor, characterized in that, include: A base (4) is provided with a base cover (3) fixed on the top of the base (4) by several bolts. A wire clamping nut (2) is screwed onto the base cover (3). A cable (1) is fixed onto the base cover (3) by the wire clamping nut (2). The base (4) is connected to an oil chamber (9), and an O-ring (15) is provided between the base cover (3) and the base (4).

2. The energy-saving submersible sewage pump motor as described in claim 1, characterized in that: The base (4) is equipped with a stator winding (5) and a stator core (6) through a pressure correction machine, and the stator winding (5) is embedded inside the stator core (6).

3. The energy-saving submersible sewage pump motor as described in claim 1, characterized in that: The base (4) is provided with a rotor core (7), and a rotating shaft (8) is hot-pressed inside the rotor core (7) by a pressure straightening machine; The bottom of the base (4) is fixedly provided with a lower bearing seat (12), and both the upper cover (3) and the lower bearing seat (12) are provided with support seats. The top and bottom of the base (4) are respectively provided with bearing seats provided in the upper cover (3) and the lower bearing seat (12) to place bearing two (14) and bearing one (13).

4. The energy-saving submersible sewage pump motor as described in claim 1, characterized in that: A mechanical seal (10) is fixedly installed in the oil chamber (9), and mechanical oil is added to the oil chamber (9) and the mechanical seal (10) for lubrication.

5. The energy-saving submersible sewage pump motor as described in claim 1, characterized in that: The oil chamber (9) is provided with a skeleton oil seal (11) on the outside, which is used to isolate solid impurities in the medium.

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