A new type of cutting sewage pump

Abstract

The utility model discloses a novel cutting sewage pump adopts independent cutting motor and sewage pump motor to drive cutting blade and impeller respectively, realizes the independent movement of cutting blade and impeller to can make cutting blade's starting speed accelerate, and cutting blade's rotating speed is also not restricted by the rotating speed of impeller, help to improve cutting quality and efficiency. And the utility model can be after cutting blade completely cuts the clogging and starts the rotation of impeller to the broken thing is smoothly through the impeller and is discharged, reduces the possibility of clogging. In addition, the utility model discloses independent cutting motor and sewage pump motor are used in the utility model respectively to drive cutting blade and impeller, can reduce the power requirement of sewage pump motor to reduce the production difficulty.

Description

Technical Field

[0001] This utility model relates to the field of cutting pump technology, specifically to a novel cutting sewage pump. Background Technology

[0002] Traditional cutting pumps share a shaft with the centrifugal impeller, both driven by a motor, resulting in synchronized rotation speeds between the blades and the impeller. The impeller's acceleration time is relatively long, consequently extending the blade's acceleration time. This can lead to ineffective cutting or crushing of objects during the initial blade startup phase, potentially causing blockages. Furthermore, the power requirements of the cutting blades are added to the impeller drive motor's power requirements, increasing the motor's power demands and manufacturing complexity. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the present invention aims to provide a new type of cutting sewage pump.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A novel cutting sewage pump includes a sewage pump body, wherein the impeller shaft of the sewage pump body is driven to rotate by an independent sewage pump motor, and the sewage pump motor is independently powered by a sewage pump power supply.

[0006] The novel cutting sewage pump also includes a cutting section, which includes a fixed blade holder, a transverse cutting blade, a longitudinal cutting blade, a blade rotating seat, and a cutting motor. The cutting motor includes a cutting motor housing, a cutting motor hollow shaft, a cutting motor stator coil, and a cutting motor rotor coil. The cutting motor hollow shaft is axially rotatable inside the cutting motor housing. The cutting motor stator coil is fixed to the inner wall of the cutting motor housing, and the cutting motor rotor coil is fixed to the outer wall of the cutting motor hollow shaft. The cutting motor stator coil and the cutting motor rotor coil are positioned opposite each other.

[0007] The transverse cutting blade and the longitudinal cutting blade are respectively fixed to the bottom and side surfaces of the blade rotating seat. The blade rotating seat is fixedly connected to the lower end of the hollow shaft of the cutting motor, and the fixed blade holder is fixedly connected to the lower end of the housing of the cutting motor. The fixed blade holder has an inverted door-shaped structure. The blade edge of the transverse cutting blade is opposite to the transverse part of the fixed blade holder, and the blade edge of the longitudinal cutting blade is opposite to the vertical part of the fixed blade holder. The hollow shaft of the cutting motor is connected to the inlet at the lower end of the sewage pump body.

[0008] Furthermore, the lower and upper ends of the hollow shaft of the cutting motor are respectively connected to the inner rings of the lower and upper bearings, and the outer rings of the lower and upper bearings are respectively installed in the bearing chambers on the inner walls of the lower and upper flanges. The lower and upper flanges are respectively connected to the lower and upper ends of the cutting motor housing by threaded connection; the lower end of the sewage pump part is connected to the upper flange by a connecting flange.

[0009] Furthermore, the fixed tool holder is fixed to the lower flange by screws.

[0010] Furthermore, the stator coil of the cutting motor is independently powered by an external power source via a power lead wire.

[0011] Furthermore, a support base is fixedly connected to the lower end of the cutting motor housing, and the bottom position of the fixed blade holder is higher than the bottom position of the support base.

[0012] The beneficial effects of this invention are as follows:

[0013] 1. In this invention, independent cutting motors and sewage pump motors drive the cutting blade and impeller respectively, achieving independent movement of the cutting blade and impeller. This allows for faster start-up of the cutting blade, and the blade's rotation speed is not limited by the impeller's speed, thus improving cutting quality and efficiency. Furthermore, this invention allows the impeller to start rotating only after the cutting blade has completely chopped up the blockage, ensuring smooth discharge of the debris and reducing the likelihood of blockage.

[0014] 2. In this utility model, an independent cutting motor and a sewage pump motor are used to drive the cutting blade and impeller respectively, which can reduce the power requirement of the sewage pump motor and thus reduce the manufacturing difficulty. Attached Figure Description

[0015] Figure 1 This is a schematic cross-sectional view of the novel cutting sewage pump in this embodiment of the present invention;

[0016] Figure 2 for Figure 1 A magnified view of a portion of the image;

[0017] Figure 3 This is a bottom view of the connection structure between the fixed blade holder, the transverse cutting blade, and the longitudinal cutting blade in an embodiment of this utility model.

[0018] Figure 4 This is a front view of the connection structure between the fixed blade holder, the transverse cutting blade, and the longitudinal cutting blade in an embodiment of this utility model.

[0019] Figure 5 This is a side view of the connection structure between the fixed blade holder, the transverse cutting blade, and the longitudinal cutting blade in an embodiment of this utility model. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings. It should be noted that this embodiment is based on the present technical solution and provides detailed implementation methods and specific operation processes, but the protection scope of the present invention is not limited to this embodiment.

[0021] This embodiment provides a novel cutting sewage pump, such as Figure 1-5 As shown, it includes a sewage pump body 16, and the impeller shaft 17 of the sewage pump body 16 is driven to rotate by an independent sewage pump motor 15, which is independently powered by a sewage pump power supply.

[0022] The novel cutting sewage pump also includes a cutting section, which includes a fixed blade holder 1, a transverse cutting blade 2, a longitudinal cutting blade 3, a blade rotating seat 4, and a cutting motor. The cutting motor includes a cutting motor housing 17, a cutting motor hollow shaft 9, a cutting motor stator coil 8, and a cutting motor rotor coil. The cutting motor hollow shaft 9 is axially rotatable inside the cutting motor housing 17. The cutting motor stator coil 8 is fixedly disposed on the inner wall of the cutting motor housing 17, and the cutting motor rotor coil is fixedly disposed on the outer wall of the cutting motor hollow shaft 9. The cutting motor stator coil 8 and the cutting motor rotor coil are positioned opposite each other.

[0023] The transverse cutting blade 2 and the longitudinal cutting blade 3 are respectively fixed to the bottom and side surfaces of the blade rotating seat 4. The blade rotating seat 4 is fixedly connected to the lower end of the hollow rotating shaft 9 of the cutting motor. The fixed blade holder 1 is fixedly connected to the lower end of the housing 17 of the cutting motor. The fixed blade holder 1 has an inverted door-shaped structure. The blade edge of the transverse cutting blade 2 faces the transverse part of the fixed blade holder 1, and the blade edge of the longitudinal cutting blade 3 faces the vertical part of the fixed blade holder 1. The transverse and vertical parts of the fixed blade holder 1 can serve as cutting boards for the transverse cutting blade 2 and the longitudinal cutting blade 3, respectively. The hollow rotating shaft 9 of the cutting motor is connected to the inlet 14 at the lower end of the sewage pump body 16.

[0024] In this embodiment, the lower and upper ends of the hollow shaft 9 of the cutting motor are respectively connected to the inner rings of the lower bearing 7 and the upper bearing 10. The outer rings of the lower bearing 7 and the upper bearing 10 are respectively installed in the bearing chambers of the lower flange 6 and the upper flange 11. The lower flange 6 and the upper flange 11 are respectively connected to the lower and upper ends of the cutting motor housing 17 by threaded connection. The lower end of the sewage pump part 16 is connected to the upper flange 11 through the connecting flange 13.

[0025] Furthermore, in this embodiment, the fixed knife holder 1 is fixed to the lower flange 6 by screws.

[0026] Furthermore, in this embodiment, the stator coil 8 of the cutting motor is independently powered by an external power source connected to the power lead 12.

[0027] In this embodiment, a support base 5 is also fixedly connected to the lower end of the cutting motor housing 17, and the bottom position of the fixed blade holder 1 is higher than the bottom position of the support base 5. The support base 5 provides more stable support when the cutting sewage pump is working.

[0028] In the aforementioned cutting sewage pump, the sewage pump section and the cutting section are driven by independent sewage pump motors and cutting motors, respectively. During operation, the cutting motor is started first. After the stator coil of the cutting motor is energized, a magnetic field is generated. Under the influence of this magnetic field, the rotor coil of the cutting motor generates an induced current, which drives the hollow shaft 9 of the cutting motor to begin axial rotation. Driven by the hollow shaft 9 of the cutting motor, the blade rotating seat 4 drives the transverse cutting blade 2 and the longitudinal cutting blade 3 to rotate. During rotation, the transverse cutting blade 2 and the longitudinal cutting blade 3 respectively form a scissor-like cutting action with the transverse and vertical parts of the fixed blade seat 1, which can shred large particles, ribbon-like materials, and other contaminants. The higher the rotation speed, the smaller the shredded volume. After the shredding action is completed, the sewage pump motor starts, driving the impeller shaft and impeller of the sewage pump section to rotate. The shredded contaminants are sucked into the sewage pump section under the power of the impeller and discharged from the outlet of the sewage pump section.

[0029] For those skilled in the art, various corresponding changes and modifications can be made based on the above technical solutions and concepts, and all such changes and modifications should be included within the protection scope of the claims of this utility model.

Claims

1. A novel cutting sewage pump, characterized in that, It includes a sewage pump body, wherein the impeller shaft of the sewage pump body is driven to rotate by an independent sewage pump motor, and the sewage pump motor is independently powered by a sewage pump power supply; The novel cutting sewage pump also includes a cutting section, which includes a fixed blade holder, a transverse cutting blade, a longitudinal cutting blade, a blade rotating seat, and a cutting motor. The cutting motor includes a cutting motor housing, a cutting motor hollow shaft, a cutting motor stator coil, and a cutting motor rotor coil. The cutting motor hollow shaft is axially rotatable inside the cutting motor housing. The cutting motor stator coil is fixed to the inner wall of the cutting motor housing, and the cutting motor rotor coil is fixed to the outer wall of the cutting motor hollow shaft. The cutting motor stator coil and the cutting motor rotor coil are positioned opposite each other. The transverse cutting blade and the longitudinal cutting blade are respectively fixed to the bottom and side surfaces of the blade rotating seat. The blade rotating seat is fixedly connected to the lower end of the hollow shaft of the cutting motor, and the fixed blade holder is fixedly connected to the lower end of the housing of the cutting motor. The fixed blade holder has an inverted door-shaped structure. The blade edge of the transverse cutting blade is opposite to the transverse part of the fixed blade holder, and the blade edge of the longitudinal cutting blade is opposite to the vertical part of the fixed blade holder. The hollow shaft of the cutting motor is connected to the inlet at the lower end of the sewage pump body.

2. The novel cutting sewage pump according to claim 1, characterized in that, The lower and upper ends of the hollow shaft of the cutting motor are respectively connected to the inner rings of the lower and upper bearings. The outer rings of the lower and upper bearings are respectively installed in the bearing chambers on the inner walls of the lower and upper flanges. The lower and upper flanges are respectively connected to the lower and upper ends of the cutting motor housing by threaded connection. The lower end of the sewage pump part is connected to the upper flange by a connecting flange.

3. The novel cutting sewage pump according to claim 2, characterized in that, The fixed tool holder is fixed to the lower flange by screws.

4. The novel cutting sewage pump according to claim 1, characterized in that, The stator coil of the cutting motor is independently powered by an external power source connected to a power lead.

5. The novel cutting sewage pump according to claim 1, characterized in that, The lower end of the cutting motor housing is also fixedly connected to a support base, and the bottom position of the fixed blade holder is higher than the bottom position of the support base.

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