CN218498916U

CN218498916U - Motor assembly for deep well pump

Info

Publication number: CN218498916U
Application number: CN202222238141.XU
Authority: CN
Inventors: 周刚; 但春杰; 陆先高
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-02-17
Anticipated expiration: 2032-08-24

Abstract

The utility model provides a motor assembly that deep well pump was used, including motor housing, rotor and controller subassembly, the motor housing both ends are equipped with motor lower cover and motor upper cover, and motor upper cover links firmly with motor housing mutually, is equipped with shielding component in the motor housing, and shielding component includes the stator shielding cover, is equipped with the stator between stator shielding cover and the motor housing, and the stator shielding cover links firmly with the motor housing inner wall. A sealing cavity is formed by matching the motor shell with the lower motor cover and the upper motor base body, and a shielding assembly is arranged in the motor shell to protect the stator and the rotor, so that the problem of improving the strength of the sealing structure is solved.

Description

Motor assembly for deep well pump

Technical Field

The utility model belongs to the technical field of the deep-well pump, a motor assembly that deep-well pump was used is related to.

Background

The deep well pump comprises a motor and a pump body, wherein the motor shaft and the pump body are connected into a whole after being connected, and the deep well pump is a pump which is immersed into an underground well for pumping and delivering water and is widely used for agricultural irrigation, industrial and mining enterprises, urban water supply and drainage and sewage treatment.

At present, the variety of deep well pumps is increasing, and among them, deep well pumps comprising canned motors are more commonly used. The shielding motor is permanent magnetic and can rotate at a high speed when in use, and a controller is arranged in the shielding motor to realize the control of the motor. The shielding case among the prior art often the lug weld on the motor end cover, the relative position of shielding case, motor end cover and motor housing need be considered to the connected mode of above-mentioned shielding case to the stability of shielding case receives the influence of motor end cover great, therefore above-mentioned structural design is complicated and stability is relatively poor, takes place to damage easily.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a motor assembly that deep well pump was used, the utility model aims to solve the technical problem that: how to improve the stability in use of motor assembly for the deep well pump.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a motor assembly that deep well pump was used, includes motor housing, rotor and controller subassembly, the motor housing both ends are equipped with motor lower cover and motor upper cover, motor upper cover links firmly with motor housing mutually, be equipped with shielding component in the motor housing, shielding component includes the stator shielding cover, be equipped with the stator between stator shielding cover and the motor housing, the stator shielding cover links firmly with the motor housing inner wall.

In the motor assembly for the deep well pump, the motor upper seat cover and the motor lower cover are arranged at the two ends of the motor shell, the motor upper seat cover and the motor shell form a sealing cavity of the motor component formed by the motor component, and the motor lower cover and the motor shell form a sealing cavity of the controller. In motor element's sealed intracavity, stator shielding cover directly links firmly with the motor housing inner wall, compares in stator shielding cover and links firmly on the motor upper bracket lid, and stator shielding cover is difficult to appear making a round trip the condition of rocking in sealed intracavity, and stator shielding cover designs simplyr and connects more stably, improves the stability in use of motor assembly for the deep well pump.

In foretell motor assembly for deep well pump, the stator shield cover includes first shield cover and the second shield cover that is located stator one side, be welded connection or integrated into one piece between first shield cover and the second shield cover, there is the clearance between rotor shield cover and the first shield cover. Because the stator shielding sleeve adopts the first shielding sleeve and the second shielding sleeve, the stator shielding sleeve has a more proper sealing effect, and the stator shielding sleeve are welded or connected in an integrated forming mode, so that the connection strength of the stator shielding sleeve and the stator shielding sleeve is ensured.

In foretell motor assembly for deep well pump, the second shield cover is the flaring form, first shield cover is the tube-shape, the opening of first shield cover is in the inner wall of second shield cover and links to each other, the lateral wall and the motor housing welded connection or integrated into one piece of second shield cover. Because the second shielding sleeve adopts the flaring-shaped design and the outer side wall of the second shielding sleeve is welded with the motor shell, the stator shielding sleeve is ensured not to generate circumferential displacement when in use, and the motor shell is welded with the second shielding sleeve, thereby avoiding the reduction of the connection strength of the sealing structure caused by welding a plurality of positions after the motor shell and the second shielding sleeve pass through the upper base body of the motor.

In the motor assembly for the deep well pump, the motor upper seat cover comprises an upper seat body fixedly connected with the motor shell, a plastic upper cover and a one-way valve positioned on one side of the plastic upper cover, and the plastic upper cover and the upper seat body are in interference fit or are integrally formed. Because seal through interference fit's mode between upper housing and the plastic upper cover to further the high leakproofness of cavity has been guaranteed, and owing to adopt the plastic upper cover, thereby make when the installation, can not produce great wearing and tearing to the upper housing, as an alternative, plastic upper cover and upper housing are the integrated into one piece design.

In the motor assembly for the deep well pump, the motor housing is welded to or integrally formed with a connecting portion on the upper seat body, and the connecting portion is a circular ring or a circular groove located at the edge of the upper seat body. Through set up the ring on last pedestal to the area of contact of last pedestal and motor housing has been increased, thereby has guaranteed joint strength.

In the motor assembly for the deep well pump, the upper seat body is provided with a groove capable of accommodating the plastic upper cover. Through set up the recess that holds the plastic upper cover on last pedestal to guarantee that the plastic upper cover can not reciprocating motion in last pedestal, thereby guaranteed the joint strength of motor upper seat body.

In the motor assembly for the deep well pump, the controller component comprises a control panel and a cable which penetrates through the lower motor cover and is connected with the control panel, a sealing element is arranged between the cable and the lower motor cover, and a pressing plate capable of sealing and extruding to deform is arranged on one side of the lower motor cover. Through setting up the control panel in that the motor is inside to cable through passing the motor lower cover links to each other with the control panel, thereby makes the motor possess certain maneuverability, because seal through the mode of clamp plate extrusion sealing member between cable and the motor lower cover, thereby avoided because motor lower cover and cable do not seal and the sealed inefficacy that leads to.

In the motor assembly for the deep well pump, an O-ring for sealing is arranged between the lower cover of the motor and the motor housing. An O-shaped sealing ring is arranged between the lower motor cover and the motor shell, so that the sealing effect of the motor assembly is further ensured.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model discloses in, in motor element's sealed intracavity, the stator shielding cover directly links firmly with the motor housing inner wall, compares in the stator shielding cover and links firmly on the motor upper bracket lid, the stator shielding cover design is simpler and connect more stably, improves the stability in use of motor assembly for the deep well pump.

2. The utility model discloses a mode of passing wire casing and motor lower cover with the cable has avoided the fluting in the rotor direction to because the cable passes through the sealing member with the motor lower cover and links to each other, and through the clamp plate with sealing member extrusion deformation, thereby make to have higher sealing performance between cable and the motor lower cover, and sealed through O type circle, thereby prevent to lead to the control panel short circuit because the water infiltration of high pressure is sealed the chamber, promoted motor assembly's sealing performance.

Drawings

Fig. 1 is an overall cross-sectional schematic view of the present invention;

FIG. 2 is an enlarged partial schematic view of FIG. 1;

in the figure, 1, a motor shell; 2. a rotor; 3. a controller assembly; 3a, a control panel; 3b, a cable; 4. a lower cover of the motor; 4a, a sealing member; 4b, pressing plates; 5. a motor upper seat cover; 5a, an upper seat body; 5b, plastic upper cover; 5c, a one-way valve; 6. a shielding assembly; 6a, a stator shielding sleeve; 6a1, a first shielding sleeve; 6a2 and a second shielding sleeve; 7. and a stator.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 and 2, a motor assembly for a deep well pump includes a motor housing 1, a rotor 2 and a controller assembly 3, a motor lower cover 4 and a motor upper cover 5 are disposed at two ends of the motor housing 1, the motor upper cover 5 includes an upper base 5a fixedly connected to the motor housing 1, a plastic upper cover 5b, and a check valve 5c disposed at one side of the plastic upper cover 5b, the plastic upper cover 5b and the upper base 5a are in interference fit, as an alternative, the plastic upper cover 5b and the upper base 5a are integrally formed, the motor housing 1 is connected to the motor upper cover 5 by a ring disposed on the upper base 5a in a welding manner, as an alternative, the motor housing 1 and the motor upper cover 5 are integrally formed, a shielding assembly 6 is disposed in the motor housing 1, the shielding assembly 6 includes a stator shielding sleeve 6a, and stator housing 6a is including being the first housing 6a1 of tube-shape and being located stator 7 one side and being the second housing 6a2 of flaring form, be welded connection or integrated into one piece between first housing 6a1 and the second housing 6a2, there is the clearance with between the first housing 6a1, be equipped with stator 7 between stator housing 6a and the motor casing 1, stator housing 6a links firmly with motor casing 1 inner wall, and controller subassembly 3 includes control panel 3a and is located to pass motor lower cover 4 and the cable 3b that links to each other with control panel 3a, be equipped with sealing member 4a between cable 3b and the motor lower cover 4, motor lower cover 4 one side is equipped with the clamp plate 4b that enables sealed extrusion deformation to be equipped with the O type circle that is used for sealing between motor lower cover 4 and the motor casing 1. Because the motor shell 1 is fixedly connected with the motor lower cover 4 and the motor upper seat cover 5 and sealed, the stator 7, the rotor 2 and the control panel 3a which are positioned in the motor assembly are ensured to not be short-circuited or corroded due to direct exposure in water. And because motor upper base lid 5 comprises upper base body 5a, plastic upper cover 5b and check valve 5c, and upper base body 5a directly adopts interference fit with plastic upper cover 5b, consequently upper base body 5a forms sealedly with plastic upper cover 5b, because the characteristic of plastic material, compare in metal material, the plastic material has higher toughness, thereby make it under operational environment, still can possess certain intensity, and through set up check valve 5c on plastic upper cover 5b, inside sealed has been guaranteed to a certain extent. Because set up by stator shield 6a and the shield assembly 6 who constitutes in motor housing 1, and second shield 6a2 that is located on stator shield 6a is flaring and its outside links firmly with the inner wall welding of motor housing 1, thereby make its both compare with link to each other through upper base 5a, avoided leading to the lower problem of joint strength because of welding many times, the port of the first shield 6a1 that is the tube-shape links to each other with the inside wall welding of second shield 6a2, thereby form sealedly, avoided because there is the clearance between the two and lead to making the leakage. And because the one end of control panel 3a is connected with the cable 3b, in order to guarantee that the cable 3b will not leak in the motor assembly when linking to each other with control panel 3a, thus lose the sealed effect, consequently will fix a position and seal through the sealing member 4a on the motor lower cover 4, in order to guarantee it can be fully sealed, so place the clamp plate 4b on one side of motor lower cover 4, and through the bolt fastening, force sealing member 4a to extrude deformation and fill motor lower cover 4 and cable 3b, thus guaranteed the leakproofness, in order to prevent that its cable 3b of motor assembly from receiving buoyancy influence to shake back and forth and lead to damaging under operational environment, consequently set up the wire casing and fix with the wire casing sheath on motor housing 1. Because the operational environment of this motor assembly is the deep well, need pay attention to this motor assembly's leakproofness, consequently set up seal structure on motor upper seat lid 5 and the motor lower cover 4 at motor assembly both ends to set up shielding component 6 in motor housing 1, and make shielding component 6 and motor housing 1 lug connection, thereby reduced the stress concentration that many times welding brought, promoted seal structure's joint strength.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although 1, motor housing is used more herein; 2. a rotor; 3. a controller assembly; 3a, a control panel; 3b, a cable; 4. a motor lower cover; 4a, a sealing member; 4b, pressing plates; 5. a motor upper seat cover; 5a, an upper seat body; 5b, a plastic upper cover 6 and a shielding component; 6a, a stator shielding sleeve; 6a1, a first shielding sleeve; 6a2 and a second shielding sleeve; 7. stator, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a motor assembly that deep well pump was used, includes motor housing (1), rotor (2) and controller subassembly (3), motor housing (1) both ends are equipped with motor lower cover (4) and motor upper cover (5), its characterized in that, motor upper cover (5) link firmly with motor housing (1) mutually, be equipped with shielding component (6) in motor housing (1), shielding component (6) include stator shielding cover (6 a) be equipped with the stator between stator shielding cover (6 a) and motor housing (1), stator shielding cover (6 a) link firmly with motor housing (1) inner wall.

2. The motor assembly for the deep well pump according to claim 1, wherein the stator shielding sleeve (6 a) comprises a first shielding sleeve (6 a 1) and a second shielding sleeve (6 a 2) located at one side of the stator shielding sleeve (6 a), and the first shielding sleeve (6 a 1) and the second shielding sleeve (6 a 2) are connected by welding or are integrally formed.

3. The motor assembly for the deep well pump according to claim 2, wherein the second shielding sleeve (6 a 2) is in a flaring shape, the first shielding sleeve (6 a 1) is in a cylindrical shape, the opening of the first shielding sleeve (6 a 1) is positioned on the inner side wall of the second shielding sleeve (6 a 2) and connected with the inner side wall of the second shielding sleeve, and the outer side wall of the second shielding sleeve (6 a 2) is welded with the motor housing (1) or integrally formed with the motor housing (1).

4. The motor assembly for the deep well pump according to claim 1, wherein the motor upper seat cover (5) comprises an upper seat body (5 a) fixedly connected with the motor housing (1), a plastic upper cover (5 b), and a check valve (5 c) located on one side of the plastic upper cover (5 b), and the plastic upper cover (5 b) and the upper seat body (5 a) are in interference fit or are integrally formed.

5. The motor assembly for the deep well pump according to claim 4, wherein the motor housing (1) is welded to or integrally formed with a connecting portion of the upper seat (5 a), and the connecting portion is a circular ring or a circular groove located at the edge of the upper seat (5 a).

6. The motor assembly for the deep well pump according to claim 4, wherein the upper seat body (5 a) is provided with a groove for accommodating the plastic upper cover (5 b).

7. The motor assembly for the deep well pump according to claim 1, wherein the controller component (3) comprises a control board (3 a) and a cable (3 b) which passes through the motor lower cover (4) and is connected with the control board (3 a), a sealing member (4 a) is arranged between the cable (3 b) and the motor lower cover (4), and a pressing plate (4 b) which can extrude and deform the sealing member is arranged on one side of the motor lower cover (4).

8. The motor assembly for the deep well pump according to claim 1 or 7, wherein an O-ring for sealing is arranged between the motor lower cover (4) and the motor housing (1).