Medium and large submersible sewage pump horizontal installation structure

Abstract

This utility model designs a horizontal installation structure for a medium-to-large submersible sewage pump, including a submersible motor, pump body, channel steel base, motor bracket, and motor upper end cover. The bottom of the pump body is fixedly connected to the channel steel base. The bottom of the motor upper end cover of the submersible motor is connected to the motor bracket, and the bottom of the motor bracket is fixedly connected to the channel steel base. The pump body base, inlet pipe, and inlet flange are all cast from the same part as the pump body. The advantages of this utility model are that the pump body is re-molded, eliminating the need for the pump bracket and inlet pipe parts, and the pump body base and inlet pipe are cast integrally with the pump body. The motor bracket is connected to the submersible motor and includes a limiting mechanism, with the addition of a channel steel base for easy horizontal installation. Concrete is poured into the channel steel base to improve the unit's vibration resistance. These features enhance the rigidity of the unit and improve the reliability of pump operation.

Description

Technical Field

[0001] This utility model relates to a horizontal installation structure for medium and large submersible sewage pumps. Background Technology

[0002] Horizontal installation of submersible sewage pumps is common in small submersible sewage pumps. Existing horizontal installation structures for small submersible sewage pumps are shown below. Figure 1 31 Submersible sewage pump, 32 Pump bracket, 33 Inlet pipe, 34 Clamp, 35 Motor bracket. Small submersible sewage pumps have low power and light weight, resulting in minimal vibration during operation. A pump bracket and inlet pipe are typically installed at one end of the pump body, while a pump bracket and clamp are installed on the motor side. This simple support scheme can meet the required rigidity. However, for medium and large submersible sewage pumps, due to their heavy weight and significant operational vibration, existing horizontal mounting structures cannot meet the required rigidity. Therefore, a new horizontal mounting structure is urgently needed to address the issue of insufficient rigidity. Summary of the Invention

[0003] This utility model addresses the problem of insufficient support rigidity in the horizontal installation of medium and large submersible sewage pumps in existing technologies, and provides a horizontal installation structure for medium and large submersible sewage pumps. This utility model designs a horizontal installation structure for medium and large submersible sewage pumps, including a submersible motor, a pump body, a channel steel base, a motor bracket, and a motor upper end cover. The bottom of the pump body is fixedly connected to the channel steel base. The bottom of the motor upper end cover of the submersible motor is connected to the motor bracket, and the bottom of the motor bracket is fixedly connected to the channel steel base. The pump body has an inlet pipe and an inlet flange at its inlet. The pump body has feet symmetrically arranged along its centerline, with mounting holes at the feet. The pump body feet, inlet pipe, and inlet flange are all cast from the same body. The motor bracket consists of a base plate, a support frame, and side plates. The support frame is welded... The base plate is attached to the support frame, which has a base plate hole. Several side plates are welded between the support frame and the base plate. The support frame has a semi-circular groove, and a semi-circular convex ring is provided on the outer side of the semi-circular groove. Several mounting screw holes are provided on the semi-circular convex ring along the axial direction. The connecting surface of the motor upper end cover has an outer end face, and screw holes are provided on the outer end face along the circumference. Corresponding housing threaded holes are provided on the housing end face of the submersible motor. Threaded holes are provided between the screw holes in the lower semi-circle. The outer end face of the motor upper end cover fits into the semi-circular groove of the motor bracket, and the lower semi-circle of the outer end face abuts against the semi-circular convex ring at the semi-circular groove of the motor bracket. Screws are installed in the mounting screw holes on the semi-circular convex ring of the motor bracket, corresponding to the screw holes on the upper end cover of the motor, to be screwed into the screw holes on the upper end cover of the motor. Screws are also installed in the mounting screw holes on the semi-circular convex ring of the motor bracket, corresponding to the screw holes on the upper end cover of the motor and the terminal block, to be screwed into the screw holes on the submersible motor housing. Concrete is poured into the channel steel base. The advantages of this utility model are: the pump body is re-molded, eliminating the pump bracket and inlet pipe parts; the pump body base and inlet pipe are cast integrally with the pump body. The motor bracket is connected to the submersible motor and, considering limiting movement, a channel steel base is added to facilitate horizontal installation. The concrete pouring into the channel steel base helps the unit resist vibration. These features enhance the rigidity of the unit and improve the reliability of pump operation. Attached Figure Description

[0004] Figure 1 This is a schematic diagram of the existing technology.

[0005] Figure 2 for Figure 1 The left view.

[0006] Figure 3 This is a schematic diagram of the structure of this utility model.

[0007] Figure 4 This is a cross-sectional view of the pump body structure of this utility model.

[0008] Figure 5 for Figure 4 The left view.

[0009] Figure 6 This is a cross-sectional view of the motor bracket structure of this utility model.

[0010] Figure 7 for Figure 6 The left view.

[0011] Figure 8 This is a cross-sectional view of the upper end cover structure of the motor of this utility model.

[0012] Figure 9 for Figure 8 The right view. Detailed Implementation

[0013] The specific embodiments of this utility model are described in detail below with reference to the accompanying drawings, so that those skilled in the art can more clearly understand how to practice this utility model. Although this utility model has been described in conjunction with its preferred embodiments, these embodiments are merely illustrative and not intended to limit the scope of this utility model.

[0014] The figure shows a horizontal installation structure for a medium-to-large submersible sewage pump, including a submersible motor 1, a pump body 2, a rotor 6, a channel steel base 3, a motor bracket 4, and a motor upper end cover 5. The bottom of the pump body is fixedly connected to the channel steel base. The bottom of the motor upper end cover of the submersible motor is connected to the motor bracket, and the bottom of the motor bracket is fixedly connected to the channel steel base. The pump body has an inlet pipe 7 and an inlet flange 8 at its inlet. The pump body has feet 9 symmetrically arranged along its centerline, with mounting holes 24 for connecting to the channel steel base with bolts 25. The pump body feet, inlet pipe, and inlet flange are all cast from the same body. The motor bracket consists of a base plate 10, a support frame 11, and side plates 12. The support frame is welded... The base plate is attached to the bottom plate, which has a bottom plate hole 23 for connection with the bolt 26 of the channel steel base. Several side plates are welded between the support frame and the bottom plate. The support frame has a semi-circular groove 13, and a semi-circular convex ring 14 is provided on the outside of the semi-circular groove. Several mounting screw holes 15 are provided on the semi-circular convex ring along the axial direction. An outer end face 16 is provided at the connecting surface of the motor upper end cover. Screw holes 17 are provided on the outer end face along the circumference. Corresponding housing threaded holes 18 are provided on the housing end face of the submersible motor. Threaded holes 19 are provided between the screw holes in the lower semi-circle. The outer end face of the motor upper end cover fits into the semi-circular groove of the motor bracket, and the lower semi-circle of the outer end face abuts against the semi-circular convex ring at the semi-circular groove of the motor bracket. Screws 20, which connect to the screw holes on the upper cover of the motor, are installed in the mounting screw holes on the semi-circular convex ring of the motor bracket, corresponding to the screw holes on the upper cover of the motor. Screws 27, which connect to the screw holes on the submersible motor terminal block 28 and the housing, are installed in the mounting screw holes on the semi-circular part of the upper cover of the motor. Screws 21, which connect to the screw holes on the submersible motor terminal block and the housing, are installed in the mounting screw holes on the upper semi-circle of the upper cover of the motor. Concrete 22 is poured into the channel steel base.

[0015] In actual manufacturing, the pump body was re-molded, eliminating the pump bracket and inlet pipe components. The pump body base and inlet pipe were cast integrally with the pump body. The motor bracket connects to the submersible motor and is horizontally positioned by a semi-circular convex ring against the outer end face of the motor's upper cover. A channel steel base was added to facilitate horizontal installation. Concrete was poured into the channel steel base to improve the unit's vibration resistance. These features enhance the unit's rigidity and improve the pump's operational reliability.

Claims

1. A horizontal installation structure for a medium-to-large submersible sewage pump, comprising a submersible motor, a pump body, a channel steel base, a motor bracket, and a motor upper end cover; the bottom of the pump body is fixedly connected to the channel steel base; the bottom of the motor upper end cover of the submersible motor is connected to the motor bracket; and the bottom of the motor bracket is fixedly connected to the channel steel base. The pump body is characterized by... The pump body has an inlet pipe and an inlet flange at its inlet. The pump body has feet symmetrically arranged along its centerline, with mounting holes at each foot. The pump body feet, inlet pipe, and inlet flange are all cast from the same body. The motor bracket consists of a base plate, a support frame, and side plates. The support frame is welded to the base plate, which has holes. Several side plates are welded between the support frame and the base plate. The support frame has a semi-circular groove, and a semi-circular convex ring is located on the outer side of the groove. Several mounting screw holes are axially located on the semi-circular convex ring. The upper end cover of the motor has an outer end face at its connecting surface, with screw holes circumferentially located on the outer end face. Corresponding housing threaded holes are located on the end face of the submersible motor housing, and threaded holes are located between the screw holes in the lower semi-circle. The outer end face of the upper end cover of the motor fits into the semi-circular groove of the motor bracket, and the lower semi-circle of the outer end face abuts against the semi-circular convex ring in the semi-circular groove of the motor bracket.

2. A horizontal installation structure for a medium-large submersible sewage pump according to claim 1, characterized in that, The motor bracket has mounting screw holes on its semi-circular convex ring that correspond to the screw holes on the upper end cover of the motor, which are screws that can be screwed into the screw holes on the upper end cover of the motor. The motor bracket also has mounting screw holes on its semi-circular convex ring that correspond to the screw holes on the upper end cover of the motor and the terminal block, which are screws that can be screwed into the screw holes on the submersible motor housing. The upper end cover of the motor has mounting screw holes on its semi-circular surface that correspond to the screw holes on the terminal block and the housing of the submersible motor.

3. A horizontal installation structure for a medium-large submersible sewage pump according to claim 1, characterized in that, The channel steel base is filled with concrete.

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