CN212479627U

CN212479627U - Novel structure for preventing well submersible pump rotor from moving in series

Info

Publication number: CN212479627U
Application number: CN202020687665.5U
Authority: CN
Inventors: 黄杰; 韩长城
Original assignee: Nanjing Beite Pump Co ltd
Current assignee: Nanjing Beite Pump Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-02-05
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses a novel structure for preventing the rotor of a submersible pump for a well from moving, which comprises a submersible motor, one end of the submersible motor is fixedly connected with a motor joint, one end of the motor joint is fixedly connected with a submersible pump main body, one end of the submersible pump main body is fixedly connected with a drainage box, a mounting groove is arranged at the position of one side of the drainage box corresponding to an impeller, a spacing ring is fixedly connected at the inner side of the mounting groove, and an auxiliary vertical plate is uniformly arranged at the outer side of the spacing ring, the utility model improves the structural strength of the spacing ring through the auxiliary vertical plate, effectively prevents the spacing ring from deforming in the using process, and the impeller shaft can drive the impeller to generate axial displacement at the moment of starting the submersible pump, and limits the extreme position of the impeller movement through a spacing gasket, so that the rotor of the submersible pump can not collide with, the damage to the shell and other parts is avoided, and the service life of the submersible pump is prolonged.

Description

Novel structure for preventing well submersible pump rotor from moving in series

Technical Field

The utility model relates to a immersible pump technical field specifically is a novel prevent structure that immersible pump rotor moved for well cluster.

Background

The submersible pump is an important device for pumping water from a deep well, when in use, the whole unit is submerged into water to work, underground water is pumped to the ground surface, the submersible pump is domestic water, mine emergency rescue, industrial cooling, farmland irrigation, seawater lifting and ship load adjustment, and can also be used for fountain landscape;

however, the impeller shaft and the submersible motor shaft of the submersible pump in the current market are connected by adopting the sleeve type coupling, when the motor shaft and the pump impeller shaft are connected, the phenomenon of insufficient space can occur in the coupling under the influence of the output shaft length of a standard submersible motor, so that the impeller shaft can not be fixed axially by a limit screw, the flow is almost zero at the moment of starting the water pump, the lift is the maximum value, the axial force of the water pump is the maximum value at the moment, the direction is along the impeller shaft to the lower part of the pump body, the reaction force of the axial force is the maximum value according to the force interaction principle, under the action of the maximum value, the rotor of the water pump can move along the impeller shaft to the upper part of the pump body, as a motor bearing has a certain amount of clearance, the motor shaft can generate a certain amount of crosstalk, the pump impeller shaft and the rotor part can also generate integral displacement upwards at the moment, when the running distance of the rotor of the water pump is large, the rotor of the submersible pump collides with the shell to damage the shell and other parts, and the service life of the submersible pump is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel structure for preventing the rotor of the well submersible pump from moving in a string way, which can effectively solve the problem that the impeller shaft and the submersible motor shaft of the submersible pump proposed in the background technology are connected by a sleeve type shaft coupling, when the motor shaft and the pump impeller shaft are connected, the phenomenon of insufficient space can be generated in the shaft coupling under the influence of the shaft extension length of a standard submersible motor, thereby causing that the impeller shaft can not fix the axial direction of the impeller shaft by a limit screw, the flow is almost zero at the moment of starting the water pump, the lift is maximum, the axial force of the water pump is maximum at the moment, the direction is along the impeller shaft to the lower part of the pump body, according to the interaction principle of force, the reaction force of the axial force is also maximum, under the action of the force, the rotor of the water pump can move along the impeller shaft to the upper part of the pump body, because the motor bearing has, at the moment of starting up, the impeller shaft and the rotor part of the water pump can also move upwards integrally, the actual moving distance is obtained by adding the impeller shaft and the rotor part of the water pump, and when the running distance of the rotor of the water pump is large, the rotor of the submersible pump can collide with the shell to damage the shell and other parts, so that the service life of the submersible pump is shortened.

In order to achieve the above object, the utility model provides a following technical scheme: a novel structure for preventing a submersible pump rotor for a well from moving in a crossing manner comprises a submersible motor, one end of the submersible motor is fixedly connected with a motor joint, one end of the motor joint is fixedly connected with a submersible pump main body, one end of the submersible pump main body is fixedly connected with a drainage box, one end edge part of an output shaft of the submersible motor is fixedly connected with a coupler, the inner side of the coupler is movably connected with an impeller shaft, one end of the outer side of the impeller shaft is fixedly connected with an impeller, a mounting groove is formed in the position, corresponding to one side of the impeller, of the inner side of the drainage box, a limiting ring is fixedly connected with the inner side of the mounting groove, an auxiliary vertical plate is uniformly arranged on the outer side of the limiting ring, a mounting chute is fixedly formed in the middle part of the inner side of, one side of the sliding magnetic sheet is fixedly connected with a supporting ring, and one side of the supporting ring is movably connected with a limiting gasket.

Preferably, the limiting ring, the supporting ring and the limiting gasket are in rotational connection with the impeller shaft.

Preferably, the opposite faces of the fixed magnetic sheet and the sliding magnetic sheet have opposite magnetic poles.

Preferably, the outer sides of the fixed magnetic sheet, the sliding magnetic sheet and the supporting ring are tightly attached to the inner side surface of the mounting chute, and the sliding magnetic sheet and the supporting ring are movably connected with the inner wall of the mounting chute.

Preferably, the outer side of the limiting gasket is tightly attached to the inner side of the limiting ring, the limiting ring is in sliding connection with the limiting gasket, and a gap is reserved between the limiting gasket and the impeller in the static state of the submersible pump.

Preferably, the input end of the submersible motor is electrically connected with the commercial power output end.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages of being scientific and reasonable in structure, convenience safe in utilization:

1. the mounting groove is arranged, the limiting ring, the auxiliary vertical plate and the limiting gasket are arranged in the drainage box through the mounting groove, in the operation process of the submersible pump, the position of the limiting gasket is limited through the effect of the limiting ring, the limiting gasket is effectively prevented from being displaced in use, the structural strength of the limiting ring is improved through the auxiliary vertical plate, the limiting ring is effectively prevented from being deformed in the use process, in the moment of starting the submersible pump, the impeller shaft can drive the impeller to be axially displaced, the limiting position of the impeller to move is limited through the limiting gasket, the impeller is enabled to move to the limiting position, the rotor of the submersible pump cannot collide with the shell, the shell and other parts are prevented from being damaged, and the service life of the submersible pump is prolonged.

2. The installation spout has been set up, fixed magnetic sheet, the magnetic sheet and the support ring slide, when immersible pump quiescent condition, fixed magnetic sheet and the magnetic sheet that slides are located the both ends of installation spout respectively under the effect of repulsion, restrict spacing gasket's position through the support ring, in the twinkling of an eye that impeller and spacing gasket bump, through the magnetic sheet and the support ring that slide give way backward, receive big impact to spacing gasket and cushion, the impact to spacing gasket's influence has been reduced, spacing gasket's life has been improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the installation structure of the spacing washer of the present invention;

FIG. 3 is a schematic view of the mounting structure of the support ring of the present invention;

FIG. 4 is a partial sectional view of the present invention;

reference numbers in the figures: 1. a submersible motor; 2. a motor joint; 3. a submersible pump body; 4. a drain tank; 5. a coupling; 6. an impeller shaft; 7. an impeller; 8. mounting grooves; 9. a limiting ring; 10. An auxiliary vertical plate; 11. installing a chute; 12. fixing the magnetic sheet; 13. a sliding magnetic sheet; 14. a support ring; 15. spacing gasket.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figures 1-4, the utility model provides a technical scheme, a novel structure for preventing the rotor of a submersible pump for a well from moving in a crossing way, which comprises a submersible motor 1, wherein the input end of the submersible motor 1 is electrically connected with the commercial power output end, one end of the submersible motor 1 is fixedly connected with a motor joint 2, one end of the motor joint 2 is fixedly connected with a submersible pump main body 3, the model of the submersible pump main body 3 is 225QCJ60, one end of the submersible pump main body 3 is fixedly connected with a drainage box 4, one end part of the output shaft of the submersible motor 1 is fixedly connected with a coupling 5, the inner side of the coupling 5 is movably connected with an impeller shaft 6, one end of the outer side of the impeller shaft 6 is fixedly connected with an impeller 7, the inner side of the drainage box 4 is provided with a mounting groove 8 corresponding to one side of the, the middle part of the inner side of the limit ring 9 is fixedly provided with a mounting chute 11, one end of the inner side of the mounting chute 11 is fixedly connected with a fixed magnetic sheet 12, one side of the mounting chute 11 corresponding to the fixed magnetic sheet 12 is movably connected with a sliding magnetic sheet 13, the magnetic poles of the opposite faces of the fixed magnetic sheet 12 and the sliding magnetic sheet 13 are opposite, one side of the sliding magnetic sheet 13 is fixedly connected with a support ring 14, the outer sides of the fixed magnetic sheet 12, the sliding magnetic sheet 13 and the support ring 14 are tightly attached to the inner side face of the mounting chute 11, the sliding magnetic sheet 13 and the support ring 14 are movably connected with the inner wall of the mounting chute 11, when the submersible pump is in a static state, the fixed magnetic sheet 12 and the sliding magnetic sheet 13 are respectively positioned at the two ends of the mounting chute 11 under the action of repulsive force, the position of the limit gasket 15 is limited by the support ring, the large impact on the limiting gasket 15 is buffered, so that the influence of the impact on the limiting gasket 15 is reduced, and the service life of the limiting gasket 15 is prolonged;

one side of the supporting ring 14 is movably connected with a limiting gasket 15, the limiting ring 9, the supporting ring 14, the limiting gasket 15 and the impeller shaft 6 are rotatably connected, the outer side of the limiting gasket 15 is tightly attached to the inner side of the limiting ring 9, the limiting ring 9 and the limiting gasket 15 are in sliding connection, a gap is reserved between the limiting gasket 15 and the impeller 7 in a static state of the submersible pump, the limiting ring 9 is installed in the drainage box 4 through the installation groove 8, the position of the limiting gasket 15 is limited through the action of the limiting ring 9 in the operation process of the submersible pump, the displacement of the limiting gasket 15 in use is effectively avoided, the structural strength of the limiting ring 9 is improved through the auxiliary vertical plate 10, the deformation of the limiting ring 9 in the use process is effectively prevented, the impeller shaft 6 can drive the impeller 7 to generate axial displacement at the moment of starting the submersible pump, the limit position of the movement of the impeller 7 is limited through the limiting gasket 15, when the impeller 7 moves to the limit position, the rotor of the submersible pump cannot collide with the shell, so that the shell and other parts are prevented from being damaged, and the service life of the submersible pump is prolonged.

The utility model discloses a theory of operation and use flow: the utility model discloses in the practical application process, install inside 4 drain boxes through mounting groove 8 with spacing ring 9, in the in-process of immersible pump operation, the position of spacing gasket 15 is restricted through the effect of spacing ring 9, spacing gasket 15 displacement in use has effectively been avoided, the structural strength of spacing ring 9 has been promoted through supplementary riser 10, spacing ring 9 has effectively been prevented to take place to warp in the use, in the twinkling of an eye that the immersible pump starts, impeller shaft 6 can drive impeller 7 and take place axial displacement, limit the extreme position of impeller 7 motion through spacing gasket 15, make impeller 7 when moving extreme position, the rotor of immersible pump can not collide with the casing, casing and other parts have been avoided taking place to damage, the life of immersible pump has been improved;

when immersible pump quiescent condition, fixed magnetic sheet 12 and the magnetic sheet 13 that slides are located the both ends of installation spout 11 respectively under the effect of repulsion, restrict limiting gasket 15's position through support ring 14, in the twinkling of an eye that impeller 7 and limiting gasket 15 bump, through sliding magnetic sheet 13 and support ring 14 yielding backward, receive big impact to limiting gasket 15 and cushion, reduced the impact to limiting gasket 15's influence, improved limiting gasket 15's life.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel prevent structure that well immersible pump rotor moved by cluster, includes submersible motor (1), its characterized in that: one end of the submersible motor (1) is fixedly connected with a motor connector (2), one end of the motor connector (2) is fixedly connected with a submersible pump main body (3), one end of the submersible pump main body (3) is fixedly connected with a drainage box (4), one end edge part of an output shaft of the submersible motor (1) is fixedly connected with a coupling (5), the inner side of the coupling (5) is movably connected with an impeller shaft (6), one end of the outer side of the impeller shaft (6) is fixedly connected with an impeller (7), a mounting groove (8) is formed in the position of the inner side of the drainage box (4) corresponding to one side of the impeller (7), a limiting ring (9) is fixedly connected to the inner side of the mounting groove (8), auxiliary vertical plates (10) are uniformly arranged on the outer side of the limiting ring (9), a mounting chute (11) is fixedly formed in the middle part of the inner side of the limiting, the magnetic sheet installation device is characterized in that a sliding magnetic sheet (13) is movably connected to one side of the corresponding fixed magnetic sheet (12) in the installation sliding groove (11), a supporting ring (14) is fixedly connected to one side of the sliding magnetic sheet (13), and a limiting gasket (15) is movably connected to one side of the supporting ring (14).

2. The novel structure for preventing the rotor of the submersible pump for the well from moving in a string mode according to claim 1, is characterized in that the limiting ring (9), the supporting ring (14) and the limiting gasket (15) are in rotating connection with the impeller shaft (6).

3. The new structure for preventing the rotor of the well submersible pump from moving in series as claimed in claim 1, characterized in that the fixed magnetic sheet (12) and the sliding magnetic sheet (13) have opposite magnetic poles.

4. The structure for preventing the rotor of the submersible pump for the well from moving in a string mode according to claim 1, wherein the outer sides of the fixed magnetic sheet (12), the sliding magnetic sheet (13) and the supporting ring (14) are tightly attached to the inner side surface of the installation chute (11), and the sliding magnetic sheet (13) and the supporting ring (14) are movably connected with the inner wall of the installation chute (11).

5. The novel structure for preventing the rotor of the submersible pump for the well from moving in a string mode according to claim 1, wherein the outer side of the limiting gasket (15) is tightly attached to the inner side of the limiting ring (9), the limiting ring (9) is in sliding connection with the limiting gasket (15), and a gap is reserved between the limiting gasket (15) and the impeller (7) in a static state of the submersible pump.

6. The novel structure for preventing the rotor of the submersible pump for the well from moving in a string manner according to claim 1, wherein the input end of the submersible motor (1) is electrically connected with the commercial power output end.