CN214506741U

CN214506741U - Water-filled cooling type submersible motor

Info

Publication number: CN214506741U
Application number: CN202120501348.4U
Authority: CN
Inventors: 葛丽珍; 王晓玲; 吴晓锋; 王君; 张怀阳; 彭毅信
Original assignee: Shaanxi Fulong Pump Co ltd
Current assignee: Shaanxi Fulong Pump Co ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-10-26
Anticipated expiration: 2031-03-09

Abstract

The utility model discloses a fill water cooling formula submersible motor, including the dustcoat in be equipped with stator and rotor the rotor on be equipped with the pivot the dustcoat both ends be equipped with upper seal cavity and lower seal cavity respectively upper seal cavity and lower seal cavity in all be equipped with installation ball bearing's bearing groove, the pivot run through upper seal cavity and stretch into down in the seal cavity pivot and upper seal cavity and lower seal cavity cooperation position be provided with mechanical seal the bearing groove of upper seal cavity and lower seal cavity in all be equipped with the cover and establish at the epaxial ball bearing of rotating lower seal cavity in be equipped with lower bearing gland the upper seal cavity in be equipped with the upper bearing gland. The bearing of the water-filled type water-cooling structure motor adopts the ball bearing, so that the applicability is stronger, the effective heat dissipation of the motor is ensured, the failure rate is low, the service life is long, and the requirement of deep well diving operation can be met.

Description

Water-filled cooling type submersible motor

Technical Field

The utility model relates to a motor especially relates to fill water-cooled submersible motor.

Background

The submersible motor for the well used in the market of China is mainly divided into a water-filled type, an oil-filled type and a dry type. The water filling type all adopts sliding bearings, and the motors all adopt vertical installation due to the working characteristics of the sliding bearings, are easy to wear and have short service life. The oil-filled type adopts rolling bearings, but the cooling effect of the motor is poor, the leakage is easy to occur, and the production cost is high. The dry motor is mostly used for a small-sized submersible electric pump, is not suitable for deep well operation, runs for a long time and is easy to break down due to water seepage.

SUMMERY OF THE UTILITY MODEL

Not solve not enough among the prior art, provide a cooling effect good, the fault rate is low, long service life's the formula of filling water dive motor, the utility model discloses the technical scheme who adopts is:

the utility model provides a fill water-cooled submersible motor, including the shell cover in be equipped with stator and rotor the rotor on be equipped with the pivot the shell cover both ends be equipped with sealed cavity and lower seal cavity respectively last sealed cavity and lower seal cavity in all be equipped with the bearing groove of installation ball bearing, the pivot run through sealed cavity and stretch into down in the sealed cavity pivot and last sealed cavity and lower seal cavity cooperation position be provided with mechanical seal the bearing groove of last sealed cavity and lower seal cavity in all be equipped with the cover and establish in the epaxial ball bearing of rotating lower seal cavity in be equipped with down the bearing gland last sealed cavity in be equipped with the bearing gland.

Furthermore, a bearing adjusting seat is arranged in the lower sealing cavity, and an adjusting bolt capable of adjusting the lower bearing gland to move along the axial direction of the rotating shaft is arranged on the bearing adjusting seat.

Furthermore, a sand throwing ring is sleeved on the part of the rotating shaft extending out of the upper sealing cavity.

Furthermore, the components forming the upper sealing chamber comprise an upper bearing seat and an upper bearing cover, the bearing groove is arranged on the upper bearing seat, a mechanical seal for sealing the matching part of the counter shaft and the upper bearing cover is arranged in the upper sealing chamber, and a mechanical seal for sealing the matching part of the counter shaft and the upper bearing seat is arranged outside the upper sealing chamber.

Furthermore, a mechanical seal for sealing the matching part of the counter shaft and the upper bearing gland is arranged in the upper seal chamber.

Furthermore, the components forming the lower sealing chamber comprise a lower bearing seat and a lower bearing cover, the bearing groove is arranged on the lower bearing seat, and a mechanical seal for sealing the matching part of the counter shaft and the lower bearing seat is arranged outside the lower sealing chamber.

Furthermore, the device also comprises a liquid inlet hole and a liquid outlet hole which are communicated with the inner cavity of the shell cover.

Furthermore, one end of the upper sealing cavity is provided with a connecting seat connected with the water pump.

The utility model discloses the motor cooling adopts the formula water-cooling structure that fills, and the bearing adopts ball bearing, can realize the level of motor, perpendicular, slope installation, and the suitability is stronger, ensures the effective heat dissipation of motor, and the fault rate is low, long service life to can satisfy the demand of deep well dive operation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The submersible motor shown in figure 1 comprises a housing cover 1, a stator 2 and a rotor 3 are arranged in the housing cover 1, a rotating shaft 4 is arranged on the rotor 3, an upper sealing chamber 5 and a lower sealing chamber 6 are respectively arranged at two ends of the housing cover 1, the connecting parts of the upper sealing chamber 5 and the lower sealing chamber 6 and the housing cover 1 are arranged in a sealing way, the rotating shaft 4 penetrates through the upper sealing chamber 5, one section of the rotating shaft extends out for connecting a submersible pump, the other end of the rotating shaft 4 extends into the lower sealing chamber 6, bearing grooves are respectively arranged in the upper sealing chamber 5 and the lower sealing chamber 6 for installing ball bearings, the ball bearings are arranged in the bearing grooves and are sleeved on the rotating shaft 4 at the corresponding parts, so as to realize the support of two ends of the rotating shaft 4, because the submersible motor adopts flushing water for cooling, and the rotating shaft 4, the upper sealing chamber 5 and the lower sealing chamber 6 are both in shaft hole matching relation, in order to prevent cooling water from entering the upper sealing chamber 5 and the lower sealing chamber 6 to influence the bearing work, set up mechanical seal 7 at pivot 4 and last sealed cavity 5 and the 6 cooperation positions of lower sealed cavity, make upper sealed cavity 5 and the sealed cavity 6 sealed cavity down form sealed cavity through mechanical seal 7, thereby the ball bearing of protection installation in upper sealed cavity 5 and lower sealed cavity 6, avoid because the motor fills the work of water cooling influence ball bearing, the realization fills water cooling's submersible motor and can adopts ball bearing to support pivot 4, fix ball bearing in order to installing at the bearing groove, be equipped with upper bearing gland 9 in last sealed cavity 5, be equipped with lower bearing gland 8 in the sealed cavity down.

Because machining precision and assembly precision can not be guaranteed, need adjust ball bearing axial position, consequently still be provided with bearing adjusting seat 10 in sealed cavity 6 down, be equipped with adjusting bolt 11 on the bearing adjusting seat 10, through adjusting bolt 11 adjustment lower bearing gland 8 position that compresses tightly, ball bearing satisfies the assembly requirement during.

A sand throwing ring 12 is arranged at one section of the rotating shaft 4 extending out of the upper sealing chamber 5, so that the suction water pump is prevented from being blocked by sand during working.

The specific forming structure of the upper sealed chamber 5 and the lower sealed chamber 6 is as shown in fig. 1, the components composing the upper sealed chamber 5 include an upper bearing seat 5-1 and an upper bearing cover 5-2, the upper bearing seat 5-1 and the upper bearing cover 5-2 are connected to enclose the upper sealed chamber 5, the upper bearing seat 5-1 is fixed on the housing cover 1, the upper bearing cover 5-2 is connected with the upper bearing seat 5-1 in a sealing way, wherein a bearing groove is arranged on the upper bearing seat 5-1, an upper bearing cover 9 is connected to the upper bearing seat 5-1 to press the ball bearing in the bearing groove, because the rotating shaft 4 penetrates through the upper sealed chamber 5, on the basis of the structure, the rotating shaft 4 and the upper bearing seat 5-1, the upper bearing cover 9 and the upper bearing cover 5-2 all have a shaft hole matching relationship, and sealing is needed at the matching place of the shaft holes, as shown in FIG. 1, a mechanical seal 7 is arranged outside an upper seal chamber 5 to seal the shaft hole assembly positions of a rotating shaft 4 and an upper bearing seat 5-1, the mechanical seal 7 is arranged in the upper seal chamber 5 to seal the shaft hole assembly positions of the rotating shaft 4 and an upper bearing cap 5-2 at the same time, and because the shaft hole assembly positions of the rotating shaft 4 and the upper bearing cap 9 are positioned in the upper seal chamber 5 and the shaft hole matching parts of the upper bearing cap 5-2 and the upper bearing seat 5-1 and the rotating shaft 4 are sealed, the bearing cap 9 on the rotating shaft 4 does not need to be sealed, but the shaft hole assembly positions of the rotating shaft 4 and the upper bearing cap 9 are also sealed for better sealing effect and with double insurance.

The components forming the lower sealing chamber 6 as shown in fig. 1 comprise a lower bearing seat 6-1 and a lower bearing cover 6-2, the lower bearing seat 6-1 and the lower bearing cover 6-2 are connected to form the lower sealing chamber 6, a bearing groove is formed in the lower bearing seat 6-1, the lower bearing cover 8 and a bearing adjusting seat 10 are both connected to the lower bearing seat 6-1, the tail end of the rotating shaft 4 does not need to be connected with external equipment to support the section, therefore, the rotating shaft 4 does not need to penetrate through the lower sealing chamber 6, the rotating shaft only has shaft hole matching with the lower bearing seat 6-1, and a mechanical seal 7 is arranged outside the lower sealing chamber 6 to seal the matching position of the rotating shaft 4 and the shaft hole of the lower bearing seat 6-1.

As the motor is cooled by filling water and needs to be cooled by filling water into the shell cover 1, a liquid inlet hole 1-1 and a liquid outlet hole 1-2 are also arranged on the motor, and the specific positions can refer to the liquid inlet hole 1-1 and the liquid outlet hole 1-2 shown in figure 1 and can penetrate through the upper sealing cavity 5 and the lower sealing cavity 6 but are not communicated with the inner cavity of the sealing cavity.

In order to facilitate the connection of the submersible motor and the submersible pump, the connecting seat 13 is arranged at one end of the upper sealing chamber 5, the submersible pump can be connected with the connecting seat 13 through a flange, and meanwhile, the submersible pump is connected with the rotating shaft 4 conveniently.

Claims

1. The utility model provides a fill water cooling formula dive motor, including shell cover (1) in be equipped with stator (2) and rotor (3) on be equipped with pivot (4), its characterized in that: outer cover (1) both ends be equipped with sealed cavity (5) and lower sealed cavity (6) respectively last sealed cavity (5) and lower sealed cavity (6) in all be equipped with the bearing groove of installation ball bearing, pivot (4) run through sealed cavity (5) and stretch into down in sealed cavity (6) pivot (4) and last sealed cavity (5) and lower sealed cavity (6) cooperation position be provided with mechanical seal (7) the bearing groove of last sealed cavity (5) and lower sealed cavity (6) in all be equipped with the ball bearing of cover establishing on pivot (4) lower sealed cavity (6) in be equipped with down bearing cover (8) last sealed cavity (5) in be equipped with bearing cover (9).

2. A water-filled cooled submersible motor as recited in claim 1, wherein: the lower seal chamber (6) is internally provided with a bearing adjusting seat (10), and the bearing adjusting seat (10) is provided with an adjusting bolt (11) capable of adjusting the lower bearing gland (8) to move along the axial direction of the rotating shaft (4).

3. A water-filled cooled submersible motor as recited in claim 1, wherein: a sand throwing ring (12) is sleeved on the part of the rotating shaft extending out of the upper sealing chamber (5).

4. A water-filled cooled submersible motor as claimed in claim 1, 2 or 3, wherein: the parts forming the upper sealing chamber (5) comprise an upper bearing seat (5-1) and an upper bearing cover (5-2), the bearing groove is formed in the upper bearing seat (5-1), a mechanical seal (7) for sealing the matching part of the counter shaft (4) and the upper bearing cover (5-2) is arranged in the upper sealing chamber (5), and a mechanical seal (7) for sealing the matching part of the counter shaft (4) and the upper bearing seat (5-1) is arranged outside the upper sealing chamber (5).

5. A water-filled cooled submersible motor as recited in claim 4, wherein: and a mechanical seal (7) for sealing the matching part of the counter shaft (4) and the upper bearing gland (9) is arranged in the upper seal chamber (5).

6. A water-filled cooled submersible motor as claimed in claim 1, 2 or 3, wherein: the parts forming the lower sealing chamber (6) comprise a lower bearing seat (6-1) and a lower bearing cover (6-2), the bearing groove is arranged on the lower bearing seat (6-1), and a mechanical seal (7) for sealing the matching part of the counter shaft (4) and the lower bearing seat (6-1) is arranged outside the lower sealing chamber (6).

7. A water-filled cooled submersible motor as recited in claim 1, wherein: also comprises a liquid inlet hole (1-1) and a liquid outlet hole (1-2) which are communicated with the inner cavity of the shell cover (1).

8. A water-filled cooled submersible motor as recited in claim 1, wherein: one end of the upper sealing chamber (5) is provided with a connecting seat (13) connected with the water pump.