CN212656997U

CN212656997U - Wet-type permanent magnet motor immersible pump

Info

Publication number: CN212656997U
Application number: CN202020778954.6U
Authority: CN
Inventors: 熊维安; 周应来; 周彬
Original assignee: HUNAN NEPTUNE PUMP CO Ltd
Current assignee: HUNAN NEPTUNE PUMP CO Ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2021-03-05
Anticipated expiration: 2030-05-12

Abstract

The utility model belongs to the technical field of the water pump equipment technique and specifically relates to a wet-type permanent-magnet machine immersible pump is related to, including water pump body and motor, the pump comprises impeller, guide vane body, check valve, guide bearing and pump shaft, and the motor comprises bearing seal, last guide bearing, rotor, stator, lower guide bearing, thrust disc, footstep bearing, base, regulation bag and gland. The utility model has the advantages that the motor is arranged below the water pump body, the outlet of the pump directly conveys water, the shafting is short, the operation is stable and reliable, and the mechanical loss is small; the graphite radial sliding bearing and the fan-shaped block thrust sliding bearing are adopted, so that the service life is long, and the bearing capacity is strong. The thrust bearing seat is provided with a spherical support and has a self-leveling function; the pressure regulating bag is arranged at the base of the motor, so that the internal and external pressures under different flooding depths can be balanced, and the reliable sealing of the motor shaft extension part is ensured.

Description

Wet-type permanent magnet motor immersible pump

Technical Field

The utility model relates to a water pump equipment technical field specifically is a wet-type permanent-magnet machine immersible pump.

Background

The submersible pump is an important device for pumping water from a deep well. When in use, the whole unit is submerged to work, and underground water is extracted to the ground surface, so that the unit is used for domestic water, mine emergency, industrial cooling, farmland irrigation, seawater lifting and ship load regulation, and can also be used for fountain landscape. At present, the shafting of the submersible pump is too long, and the mechanical loss is too large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wet-type permanent-magnet machine immersible pump to solve the present immersible pump shafting overlength that proposes in the above-mentioned background art, the too big problem of mechanical loss.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a wet-type permanent-magnet machine immersible pump, includes water pump body and motor, connect through the festival of intaking between water pump body and the motor, the water pump body includes the pump shaft, the guide bearing has been cup jointed at the both ends of pump shaft, be connected with guide vane body and impeller on the circumference of pump shaft, the water pump body is kept away from the check valve is installed to the one end of motor, the motor includes stator, permanent magnet, rotor and base, the both ends of rotor are connected with guide bearing respectively and lead the bearing down, on lead and install the bearing seal, the rotor is close to lead a tip of bearing and install the thrust disc down, install footstep bearing on the thrust disc, install the regulation bag in the base, a tip of base inlays to establish and installs the gland.

Preferably, the permanent magnet is made of a neodymium iron boron permanent magnet material.

Preferably, a protective cover is sleeved outside the water inlet joint.

Preferably, the protective cover is provided with a plurality of through holes which are uniformly and equidistantly arranged.

Preferably, the two end parts of the protective cover are respectively provided with a connecting ring, and the connecting rings are provided with a plurality of fixing holes which are uniformly arranged in an annular manner at equal intervals.

Preferably, the protective cover is connected to the water pump body and the motor respectively through connecting rings at two ends.

Preferably, the thrust bearing is provided with a spherical support seat.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the wet-type permanent magnet motor submersible pump consists of a water pump body and a motor, wherein the water pump body and the motor are connected into a whole through a water inlet joint, the motor is arranged below the water pump body, and a water pipe is directly arranged at the outlet of the pump; the graphite radial sliding bearing and the fan-shaped block thrust sliding bearing are adopted, so that the service life is long, and the bearing capacity is strong. The thrust bearing seat is provided with a spherical support and has a self-leveling function. The pressure regulating bag is arranged at the base of the motor, so that the internal and external pressures under different flooding depths can be balanced, and the reliable sealing of the motor shaft extension part is ensured.

2. This wet-type permanent-magnet machine immersible pump protective cover passes through the go-between at both ends and connects respectively on water pump body and motor, and the protective cover through setting up can prevent that bulky impurity from getting into inside the water pump body, improves wet-type permanent-magnet machine immersible pump's life.

Drawings

FIG. 1 is a schematic sectional view of the present invention;

FIG. 2 is a schematic view of a part of the structure of the present invention;

fig. 3 is a schematic structural view of the protective cover of the present invention.

In the figure: 1. a check valve; 2. a guide bearing; 3. a guide blade body; 4. an impeller; 5. a pump shaft; 6. a water inlet joint; 7. shaft sealing; 8. an upper guide bearing; 9. a rotor; 10. a permanent magnet; 11. a stator; 12. a lower guide bearing; 13. a thrust disc; 14. a thrust bearing; 15. a base; 16. an adjustment capsule; 17. a gland; 18. a protective cover; 181. a through hole; 182. a connecting ring; 183. a fixing hole; 19. a water pump body; 20. a motor; 21. a spherical supporting seat.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Example 1

The utility model provides a wet-type permanent-magnet machine immersible pump, as shown in fig. 1, fig. 2 and fig. 3, including water pump body 19 and motor 20, connect through water inlet joint 6 between water pump body 19 and the motor 20, water pump body 19 includes pump shaft 5, guide bearing 2 has been cup jointed at the both ends of pump shaft 5, be connected with guide vane body 3 and impeller 4 on the circumference of pump shaft 5, check valve 1 is installed to the one end that water pump body 19 kept away from motor 20, motor 20 includes stator 11, permanent magnet 10, rotor 9 and base 15, the both ends of rotor 9 are connected with guide bearing 8 and lower guide bearing 12 respectively, install bearing seal 7 on the upper guide bearing 8, thrust disc 13 is installed to one end that rotor 9 is close to lower guide bearing 12, install footstep bearing 14 on the thrust disc 13, install regulation bag 16 in the base 15, a tip of base 15 inlays to establish and installs.

Specifically, the permanent magnet 10 is made of a neodymium iron boron permanent magnet material, the motor 20 is a permanent magnet motor made of a neodymium iron boron permanent magnet material, and the motor is large in power density, small in size and light in weight; the graphite radial sliding bearings (the upper guide bearing 8 and the lower guide bearing 12) and the fan-shaped block thrust bearing 14 are adopted, so that the service life is long, and the bearing capacity is high.

It is worth noting that the filling of the motor 20 ensures that the coil is sufficiently cooled, while providing a lubricating cooling fluid for the sliding bearings.

Further, the safety cover 18 has been cup jointed to the outside of water inlet section 6, the through-hole 181 that a plurality of even equidistance were arranged has been seted up on the safety cover 18, go-between 182 is all installed at the both ends of safety cover 18, it is the fixed orifices 183 of cyclic annular range to set up a plurality of even equidistance on the go-between 182, safety cover 18 connects respectively on water pump body 19 and motor 20 through the go-between 182 at both ends, inside the safety cover 18 through the setting can prevent bulky impurity entering water pump body 19, improve the life of wet-type permanent magnet motor immersible pump.

In addition, the thrust bearing 14 is provided with a spherical supporting seat 21 with a self-leveling function.

The utility model discloses a wet-type permanent-magnet machine immersible pump comprises water pump body 19 and motor 20 two parts, and it connects into an organic whole through water inlet joint 6, and motor 20 is under water pump body 19, and the pump export is the raceway directly, has the characteristics that the shafting is short, and the operation is steady and reliable, and mechanical loss is little, and motor 20 is permanent-magnet machine, chooses for use neodymium iron boron permanent-magnet material, and motor 20 power density is big, makes its small, light in weight; the graphite radial sliding bearing and the fan-shaped block thrust sliding bearing are adopted, so that the service life is long, and the bearing capacity is strong. The thrust bearing seat is provided with a spherical support and has a self-leveling function. The pressure adjusting bag 16 is arranged at the base of the motor, so that the internal and external pressures under different flooding depths can be balanced, and the reliable sealing of the motor shaft extension part is ensured.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a wet-type permanent-magnet machine immersible pump which characterized in that: the centrifugal pump comprises a water pump body (19) and a motor (20), wherein the water pump body (19) is connected with the motor (20) through a water inlet joint (6), the water pump body (19) comprises a pump shaft (5), guide bearings (2) are sleeved at two ends of the pump shaft (5), a guide vane body (3) and an impeller (4) are connected to the circumference of the pump shaft (5), a check valve (1) is installed at one end, far away from the motor (20), of the water pump body (19), the motor (20) comprises a stator (11), a permanent magnet (10), a rotor (9) and a base (15), an upper guide bearing (8) and a lower guide bearing (12) are respectively connected to two ends of the rotor (9), a shaft seal (7) is installed on the upper guide bearing (8), a thrust disc (13) is installed at one end, close to the lower guide bearing (12), of the rotor (9), and a thrust bearing (14) is installed on the thrust disc (13), install regulation bag (16) in base (15), a tip of base (15) is inlayed and is established and install gland (17).

2. The wet pm machine submersible pump of claim 1, wherein: the permanent magnet (10) is made of a neodymium iron boron permanent magnet material.

3. The wet pm machine submersible pump of claim 1, wherein: and a protective cover (18) is sleeved outside the water inlet joint (6).

4. The wet permanent magnet motor submersible pump of claim 3, wherein: the protective cover (18) is provided with a plurality of through holes (181) which are uniformly arranged at equal intervals.

5. The wet permanent magnet motor submersible pump of claim 4, wherein: both ends of safety cover (18) all install go-between (182), go-between (182) is last to be seted up a plurality of even equidistance and is fixing hole (183) that the ring-type was arranged.

6. The wet permanent magnet motor submersible pump of claim 5, wherein: the protective cover (18) is respectively connected to the water pump body (19) and the motor (20) through connecting rings (182) at two ends.

7. The wet pm machine submersible pump of claim 1, wherein: and a spherical supporting seat (21) is arranged on the thrust bearing (14).