CN218062698U

CN218062698U - Driving device of deep-well pump and deep-well pump

Info

Publication number: CN218062698U
Application number: CN202221342066.5U
Authority: CN
Inventors: 莫利波; 吴海军; 胡锐
Original assignee: Zhejiang Rijing Pump Co ltd
Current assignee: Zhejiang Rijing Pump Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-12-16
Anticipated expiration: 2032-05-25

Abstract

The utility model discloses a drive arrangement and deep-well pump of deep-well pump relates to deep-well pump technical field. The driving device of the deep-well pump is used for providing power for outputting media by a pump body device of the deep-well pump; comprises the following steps: a motor assembly having at least a stator for fixing and a rotor for rotating; a barrel for housing as a drive; the oil cylinder is arranged at the top end of the inner side of the machine barrel; wherein the barrel has at least: the cylinder body accommodating section is used for accommodating an oil cylinder, and the inner diameter size of the cylinder body accommodating section is larger than the peripheral size of the motor assembly; and a body accommodating section for accommodating the motor assembly, which is located at a lower side of the cylinder accommodating section. The utility model provides a drive arrangement's of deep-well pump cylinder body holds section internal diameter size and is greater than motor element's peripheral size, and during consequently the pressure equipment motor, the injury that the motor caused to the barrel inner wall is less relatively.

Description

Driving device of deep-well pump and deep-well pump

Technical Field

The utility model belongs to the technical field of the deep-well pump, refer in particular to a drive arrangement and deep-well pump of deep-well pump.

Background

At present, the existing deep-well pump needs a pump body and a motor to be integrated and submerged to operate, so that the water pump and the motor are generally installed integrally. The bottom end of the deep well pump is provided with a machine barrel, the motor assembly is arranged in the machine barrel, and when the machine barrel and the motor assembly are installed, in order to ensure the sealing performance of a product, interference fit is usually needed, so that when the machine barrel and the motor assembly are pressed, a stator in the motor assembly easily causes damage to the inner wall of the machine barrel.

For example, the device has a Chinese utility model patent, which is 201910762312.9, and discloses an anti-bending and anti-decompression deep well pump.

The utility model discloses a can prevent that the deep-well pump from taking place to crooked to guarantee the pressure boost performance of deep-well pump, still make the problem that the barrel inner wall produced the damage when still not solving pressure equipment water pump and motor easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: a deep well pump driving device and a deep well pump are provided, in which damage to the inner wall of a casing is relatively small.

The purpose of the utility model is realized like this:

a driving device of a deep-well pump is used for providing power for outputting media by a pump body device of the deep-well pump; comprises the following steps:

a motor assembly having at least a stator for fixing and a rotor for rotating;

a barrel for housing as a drive;

the oil cylinder is arranged at the top end of the inner side of the machine barrel;

wherein the barrel has at least:

the cylinder body accommodating section is used for accommodating an oil cylinder, and the inner diameter size of the cylinder body accommodating section is larger than the peripheral size of the motor assembly; and

the organism holds the section for hold motor element, its downside that is located the cylinder body and holds the section.

And the outer side of the oil cylinder is sleeved with a sealing member, and the outer side surface of the sealing member abuts against the inner side surface of the cylinder body accommodating section.

Wherein the cylinder housing section has at least:

a second cylinder section, at least part of the cylinder being located inside the second cylinder section;

a second inclined section located at a lower end of the second barrel section and arranged to be inclined inward;

wherein the sealing member is located at least between the second barrel section and the cylinder.

Further, the oil cylinder at least also has:

a second cylinder section corresponding to the second barrel section; and

the second tightening section is positioned at the lower end of the second oil cylinder section and is tightened inwards;

wherein the second oil cylinder section comprises at least one accommodating groove,

the sealing member is located between the receiving groove and the second barrel section. Wherein the cylinder housing section has at least:

a first seal portion having at least a first barrel section and a first inclined section inclined inwardly with respect to the first barrel section;

a second sealing part which is positioned at the lower end of the first sealing part and is combined with the first sealing part;

and the second sealing part at least has the second barrel section and the second inclined section.

Further, the oil cylinder at least also has:

the first bending part at least comprises a first oil cylinder section and a first tightening section which is tightened inwards relative to the first oil cylinder section;

a second bending part which is positioned at the lower end of the first bending part and combined with the first bending part;

the second bending part at least comprises the second oil cylinder section and the second tightening section.

Furthermore, the oil cylinder at least has an extension part which is arranged at the top end of the oil cylinder;

the barrel tip abuts against the underside of the extension.

Furthermore, the driving device of the deep-well pump at least is also provided with an oil seal cover which is positioned on the upper side of the oil cylinder;

the edge of the oil seal cover extends towards the direction of the oil cylinder to form a wrapping part, and the wrapping part wraps the outer extending part and the outer side face of the top end of the machine barrel simultaneously.

Further, a deep well pump, including as above the drive arrangement of deep well pump, still include:

and the pump body device is used for outputting the medium through the power provided by the driving device.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the machine barrel is provided with a cylinder body accommodating section, and the lower side of the cylinder body accommodating section is a machine body accommodating section; when the motor assembly is pressed into the machine barrel in a pressing mode, the motor assembly firstly enters from the cylinder accommodating section, and the inner diameter size of the cylinder accommodating section is larger than the peripheral size of the motor assembly, so that the damage of the motor to the inner wall of the machine barrel is relatively small when the motor assembly is pressed into the machine barrel in a pressing mode.

2. The sealing component has elasticity and is abutted against the inner side of the accommodating section of the cylinder body during press fitting, so that the sealing property of the product is improved.

3. The cylinder body accommodating section is provided with a first sealing part and a second sealing part, and a sealing component is arranged between the second cylinder section of the second sealing part and the oil cylinder, so that when the oil cylinder is placed into the cylinder, the first sealing part cannot be abraded too much, and meanwhile, the sealing performance of a product is ensured.

4. The top end of the machine barrel abuts against the extension part of the oil cylinder, the outer side of the machine barrel abuts against the oil seal cover on the upper side of the oil cylinder, and the sealing performance of a product is improved.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

FIG. 2 is a partial cross-sectional view of FIG. 1D-D;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic structural diagram of a cylinder according to the first embodiment;

in the figure: 1-machine barrel; 11-a cylinder housing section; 111-a first seal; 1111-a first barrel section; 1112-a first inclined segment; 12-a body receiving section; 112-a second seal; 1121-second barrel section; 1122-a second inclined segment; 2-oil cylinder; 21-accommodating grooves; 22-an extension; 23-a first bend; 231-a first cylinder section; 232 — a first tightening segment; 24-a second bend; 241-a second cylinder section; 242 — a second tightening segment; 3-a sealing member; 4-sealing the oil cover; 41-wrapping part; 5-a water outlet assembly; 6-a motor assembly; 7-pump body device.

Detailed Description

The present invention will be further described with reference to specific embodiments and drawings, but the present invention is not limited to these embodiments.

[ EXAMPLES one ]

The embodiment I particularly provides a driving device of a deep-well pump.

Referring to fig. 1 in particular, fig. 1 is a schematic structural diagram of the first embodiment. As shown in fig. 1, the driving apparatus of the deep-well pump according to the present embodiment is used in a deep-well pump.

As shown in fig. 1, the deep well pump comprises a water outlet assembly 5, a motor assembly 6 and a pump body device 7. The water outlet assembly 5 is positioned at the top end of the deep well pump, the lower side of the water outlet assembly 5 is connected with the pump body device 7, and the bottom end of the deep well pump is provided with a motor assembly 6. An oil cylinder 2 is arranged between the pump body device 7 and the motor component 6. The machine barrel 1 is provided with a cylinder body accommodating section 11, the cylinder body accommodating section 11 is used for accommodating the oil cylinder 2, and the inner diameter size of the cylinder body accommodating section 11 is larger than the peripheral size of the motor assembly 6; barrel 1 also has a body receiving section 12 for receiving motor assembly 6, which is located on the underside of cylinder receiving section 11.

The driving device of the deep well pump provided by the embodiment further comprises the oil cylinder 2, and as can be seen from fig. 1, the inner diameter of the cylinder accommodating section 11 is larger than the outer periphery of the motor assembly 6, so that the friction between the motor assembly 6 and the cylinder accommodating section 11 is relatively small in the process of being installed in the machine body accommodating section 12, and the machine barrel 1 can be reduced to a certain extent, and in other words, the abrasion received by the cylinder accommodating section 11 is reduced.

Fig. 2 is a partial sectional view of fig. 1D-D. Referring to fig. 1, motor assembly 6 includes a stator 61 in contact engagement with barrel 1 and a central rotor 62 for rotation. The friction between the motor assembly 6 and the cylinder housing section 11 is mainly the friction between the stator 61 and the cylinder housing section 11. Such a design can reduce friction between the stator 61 and the cylinder housing section 11, thereby reducing the possibility of scratching the inner surface of the cylinder housing section 11.

As shown in FIG. 2, the cylinder 2 is provided inside the top end of the cylinder 1, and the outer surface of the cylinder 2 is recessed with a receiving groove 21. The sealing member 3 is arranged in the accommodating groove 21, in this embodiment, the sealing member 3 is a rubber ring, and in actual production, the sealing member 3 may be other parts having sealing performance and good deformation capability.

As shown in fig. 2, which shows the deep-well pump in a completely assembled state, the sealing member 3 is completely compressed in the receiving groove 21. The sealing member 3 itself has good elasticity and deformation capability, so that when pressed in the receiving groove 21, the sealing member 3 will expand outward and fill the receiving groove 21, so that the sealing member 3 abuts against the inner side of the cylinder receiving section 11, and the product has good sealing performance.

As shown in fig. 2, the sealing member 3 is disposed in the receiving cavity and at least partially protrudes out of the receiving groove 21 when the deep-well pump is not assembled. While the outer diameter of the portion of the sealing member 3 protruding the receiving groove 21 is larger than the cylinder 2, so that the sealing member 3 is in contact with the cylinder receiving section 11. During press fitting, the machine barrel 1 rubs against the sealing component 3, so that the friction between the cylinder body accommodating section 11 and the oil cylinder 2 is reduced, and the friction damage to the cylinder body accommodating section 11 is reduced.

Fig. 3 is an enlarged view of a portion a in fig. 2. In fig. 3, the interior of the ram 2 and other parts are omitted to more clearly show the engagement of the ram 2 with the inside of the barrel 1. As shown in FIGS. 2 to 3, the top end of the cylinder 2 has an extension 22, and the top end of the cylinder 1 abuts against the underside of the extension 22. Meanwhile, the upper side of the oil cylinder 2 is also provided with an oil seal cover 4, the edge of the oil seal cover 4 extends downwards to form a wrapping part 41, and the wrapping part 41 is connected with the outer side of the top end of the machine barrel 1. The outer side of the top end of the machine barrel 1 abuts against the wrapping portion 41 of the oil seal cover 4, the upper side of the top end of the machine barrel 1 abuts against the extending portion 22 of the oil cylinder 2, the wrapping portion 41 and the extending portion 22 enable the installation of the machine barrel 1 and the oil cylinder 2 to be more compact, and the sealing performance of a product is improved.

As shown in fig. 2 to 3, the cylinder receiving section 11 has a first sealing portion 111, and the first sealing portion 111 has a first cylinder section 1111 and a first inclined section 1112 inclined inwardly with respect to the first cylinder section. The cylinder receiving section 11 further has a second sealing portion 112, and the second sealing portion 112 is located at a lower end of the first sealing portion 111 and combined with the first sealing portion 111. In this embodiment, the joining may be by joining or may be integrally formed.

The second sealing portion 112 has a second barrel section 1121, the second barrel section 1121 being located at the lower end of the first inclined section 1112 and being joined to the first inclined section 1112; the second sealing portion 112 further has a second inclined section 1122, and the second inclined section 1122 is located at the lower end of the second barrel section 1121 and is disposed in an inwardly inclined manner; with the sealing member 3 located between the second barrel section 1121 and the ram 2. In the present embodiment, the sealing member 3 is disposed in the accommodating groove 21, and when the cylinder 2 is assembled, the sealing member 3 abuts against the second barrel section 1121, so that the friction loss between the cylinder 2 and the second barrel section 1121 is small.

Fig. 4 is a schematic structural view of the oil cylinder according to the first embodiment. As shown in fig. 4, the outer surface of the cylinder 2 is bent inward to form a first bent portion 23 and a second bent portion 24. The second bending part 24 is positioned at the lower end of the first bending part 23 and combined with the first bending part 23; wherein, the first bending portion 23 has a first cylinder section 231 and a first tightening section 232 tightened inward with respect to the first cylinder section; the second bending portion 24 has a second cylinder section 241, the second cylinder section 241 corresponds to the second barrel section 1121, and referring to fig. 3, in this embodiment, at least a portion of the first tightening section 232 also corresponds to the second barrel section 1121; the second tightening segment 242 is located at the lower end of the second cylinder segment 241 and is in an inwardly tightened configuration. This design matches the design of the first and

second sealing portions

111 and 112 of the cylinder housing section 11, and avoids the occurrence of friction with the inside of the cylinder barrel 1 due to the outer diameter of the cylinder 2 becoming too large as the cylinder barrel 1 tilts inward. Meanwhile, the oil cylinder 2 can be punched in a segmented mode during punching manufacturing, machining is facilitated, stress received by a workpiece is reduced, and the workpiece is prevented from being damaged.

The working principle is as follows: when the electronic component 6 is pressed and installed, the inner diameter of the cylinder body accommodating section 11 is larger than the peripheral dimension of the motor component 6, so that the motor component 6 can be installed into the machine body accommodating section 12 through the cylinder body accommodating section 11 relatively smoothly;

after the cylinder 2 is installed, the sealing member 3 is exposed outside the accommodation groove 21, and thus the sealing member 3 abuts against the inside of the cylinder accommodation section 11 when the sealing member 3 is installed. The sealing member 3 makes contact with the cylinder housing section 11, and friction between the oil cylinder 2 and the cylinder housing section 11 is avoided. Simultaneously, in order to match the design that the cylinder body holds section 11 leanin, hydro-cylinder 2 also designs and inwards tightens up for still hold 11 adaptation laminatings with the cylinder body after hydro-cylinder 2 cup joints sealing member 3.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A driving device of a deep-well pump is used for providing power for outputting media by a pump body device of the deep-well pump; it is characterized by comprising the following components:

a motor assembly (6) having at least a stator for fixing and a rotor for rotation;

a cylinder (1) for housing a drive;

the oil cylinder (2) is arranged at the top end of the inner side of the machine barrel (1);

wherein the barrel (1) has at least:

the cylinder body accommodating section (11) is used for accommodating the oil cylinder (2), and the inner diameter size of the cylinder body accommodating section is larger than the peripheral size of the motor assembly (6); and

the machine body accommodating section (12) is used for accommodating the motor assembly (6) and is positioned at the lower side of the cylinder body accommodating section (11).

2. Drive device for a deep-well pump according to claim 1,

the outer side of the oil cylinder (2) is sleeved with a sealing component (3), and the outer side face of the sealing component (3) abuts against the inner side face of the cylinder body accommodating section (11).

3. Drive device for a deep-well pump according to claim 2,

wherein the cylinder housing section (11) has:

a second cylinder section (1121), inside which the cylinder (2) is at least partially located;

a second inclined section (1122) which is located at the lower end of the second cylinder section (1121) and is arranged to be inclined inward;

wherein the sealing member (3) is located at least between the second barrel section (1121) and the cylinder (2).

4. Drive device for a deep-well pump according to claim 3,

the oil cylinder (2) is provided with:

a second cylinder section (241) corresponding to the second barrel section (1121); and

a second tightening segment (242) which is located at a lower end of the second cylinder segment (241) and is in an inwardly tightened configuration;

wherein the second cylinder section (241) comprises at least one receiving groove (21),

the sealing member (3) is located between the receiving groove 21 and the second barrel section (1121).

5. Drive device for a deep-well pump according to claim 3 or 4,

wherein the cylinder housing section (11) further has:

a first sealing portion (111) having at least a first barrel section (1111) and a first inclined section (1112) inclined inwardly with respect to the first barrel section;

a second sealing part (112) which is positioned at the lower end of the first sealing part (111) and is combined with the first sealing part (111);

the second seal portion (112) has at least the second cylindrical section (1121) and the second inclined section (1122).

6. Drive device for a deep-well pump according to claim 4,

the oil cylinder (2) further comprises:

a first bend (23) having at least a first cylinder section (231) and a first tightening section (232) that tightens inwardly with respect to the first cylinder section;

a second bending part (24) which is located at the lower end of the first bending part (23) and combined with the first bending part (23);

wherein the second bending portion (24) has at least the second cylinder section (241) and the second tightening section (242).

7. Drive unit for a deep-well pump according to claim 1, characterized in that the cylinder (2) has at least an outer extension (22) provided at the top end of the cylinder (2);

the top end of the cylinder (1) abuts against the lower side of the extension part (22).

8. The drive of a deep-well pump according to claim 7, characterized in that it further has at least an oil cover (4) on the upper side of the cylinder (2);

the edge of the oil seal cover (4) extends towards the direction of the oil cylinder (2) to form a wrapping part (41), and the wrapping part (41) wraps the outer extending part (22) and the outer side face of the top end of the machine barrel (1) at the same time.

9. A deep-well pump comprising a drive unit for a deep-well pump according to any of claims 1 to 8, characterized in that it further comprises: