CN109286267A - Thread connection Water well submersible motor - Google Patents
Thread connection Water well submersible motor Download PDFInfo
- Publication number
- CN109286267A CN109286267A CN201811507661.8A CN201811507661A CN109286267A CN 109286267 A CN109286267 A CN 109286267A CN 201811507661 A CN201811507661 A CN 201811507661A CN 109286267 A CN109286267 A CN 109286267A
- Authority
- CN
- China
- Prior art keywords
- thrust
- screw thread
- pedestal
- shaft block
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000010985 leather Substances 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 11
- 238000012423 maintenance Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000005266 casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/132—Submersible electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
- H02K5/1732—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings radially supporting the rotary shaft at both ends of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of thread connection Water well submersible motors, including end socket, shell, top chock and upper sliding bearing, upper end cover, stator, rotor, step and properties of journal bearing lubricated, thrust shaft block and thrust bearing component, pedestal and leather cup, stator fills in shell, weld end ring in shell both ends, end socket and top chock and upper end cover by bolt-connection together, upper end cover and step respectively with shell both ends end ring thread connection, and sealing ring sealing and holding screw locking are set, thrust bearing component includes thrust disc group and thrust bearing group and ball-and-socket support column, step is that screw thread pair couples with thrust shaft block, it is provided with sealing ring sealing and holding screw locking, pedestal is also that screw thread pair couples with thrust shaft block, it is provided with sealing ring sealing, leather cup is fixed in pedestal；It is convenient with stator built-in line, and the length and string quantity of motion of motor rotor shaft can be accurately adjusted by ball-and-socket support column after motor installation, reduce the beneficial effect of installation and maintenance cost.
Description
Technical field
The present invention relates to a kind of Water well submersible motor, especially a kind of thread connection Water well diving electricity
Machine.
Background technique
In the prior art, the structure of Water well submersible motor generally comprises end socket, shell, top chock and upper sliding
It bearing, stator, rotor, step and properties of journal bearing lubricated, thrust shaft block and thrust bearing component, pedestal and is fitted into
Leather cup, wherein stator is mounted in shell, and the both ends of shell are respectively welded upper end ring flange and lower end ring flange, institute
State end socket, top chock, shell upper end ring flange be connected by bolts together, the step, thrust shaft block, bottom
Together with seat, leather cup are connected by bolts with the lower end ring flange of shell, the thrust bearing component includes thrust disc group and stops
Thrust bearing group, and be threadably coupled within thrust shaft block bottom centre and carry the ball-and-socket support column of thrust bearing group bottom, this
Structure will also go up lathe essence since the upper end ring flange and lower end ring flange at shell both ends are welded after stator is pressed into shell
End face of flange is processed, because workpiece weight is larger, carries and processing cost is higher, simultaneously as upper end ring flange and lower end are around-France
Blue presence stops, and the end line packet of stator built-in line must stay in enclosure interior, causes stator built-in line difficult, installation cost compared with
In order to solve the above-mentioned technical problem height has a first utility model patent " submersible motor ", the patent No.
200420028520.5, a upper end cover is increased, the both ends of shell are welded with externally threaded end ring, the end socket and upper axis
It holds seat and upper end cover is connected by bolts together, upper end cover and step the end ring thread connection with shell both ends respectively, and
It is sealed by setting sealing ring and holding screw locking, this structure allows the end line packet of stator built-in line to protrude outside shell end,
It can solve stator built-in line difficult problem, still, it is logical that length and the string quantity of motion limitation of motor rotor shaft, which need strict control,
It crosses ball-and-socket support column screw thread rotation and raises and reduces and adjust what thrust bearing group and thrust disc group controlled armature spindle lifting, by
It is connected by bolts in the lower end ring flange of the step of above structure, thrust shaft block, pedestal, leather cup and shell
Together, the length and string quantity of motion of motor rotor shaft can not be adjusted by ball-and-socket support column again after mounting, it is necessary in budget model
Good shot nest support column is pre-adjusted in enclosing, thrust bearing component is installed again, when installation accumulated error is larger, need to adjust repeatedly,
Waste of manpower and time, and motor is after a period of use because thrust bearing group and the abrasion of thrust disc group may increase rotor
Axis string quantity of motion can cause the lost of life that shaft coupling linking intensity is reduced and thrust bearing component is hit, need repairing again
Thrust shaft block and pedestal must be all removed when adjusting to be adjusted repeatedly, waste of manpower and time.
Summary of the invention
The technical problem to be solved by the invention is to provide one kind, and stator built-in line can be made convenient, can also motor be facilitated to install
The length and string quantity of motion of motor rotor shaft can be accurately adjusted by ball-and-socket support column afterwards, reduces the spiral shell of installation and maintenance cost
Line couples Water well submersible motor.
In order to solve the above-mentioned technical problem, the technical solution of thread connection Water well submersible motor of the present invention is: packet
Include end socket, shell, top chock and upper sliding bearing, upper end cover, stator, rotor, step and properties of journal bearing lubricated, thrust shaft
Seat and thrust bearing component, pedestal and the leather cup being fitted into are held, wherein stator is mounted in shell, and the both ends of shell
Be welded with externally threaded end ring, the end socket and top chock and upper end cover are connected by bolts together, the upper end cover and
The step end ring thread connection with shell both ends respectively, and sealed by setting sealing ring and holding screw locking, it is described
Thrust bearing component includes thrust disc group and thrust bearing group, and is threadably coupled within thrust shaft block bottom centre and carries only
The ball-and-socket support column of thrust bearing group bottom, its main feature is that: the step be with thrust shaft block coupled by screw thread pair, and
And seal in screw thread pair connection position setting sealing ring and locked with holding screw, the pedestal is also to pass through with thrust shaft block
Screw thread pair connection, and sealed in screw thread pair connection position setting sealing ring, wherein the leather cup is fixed in pedestal.
As currently preferred technical solution first is that: the step couples with the screw thread pair of thrust shaft block is
Connection is realized by the internal screw thread of external screw thread and thrust shaft block upper end outside step lower end.
As currently preferred technical solution second is that: it is to pass through that the pedestal couples with the screw thread pair of thrust shaft block
The internal screw thread of pedestal upper end couples with the realization of the external screw thread of thrust shaft block lower end.
As currently preferred technical solution third is that: the tail portion axle center of the ball-and-socket support column is heavy with interior hexagonal
Hole, is equipped with the outer-hexagonal locking plate for being fixed on thrust shaft block bottom surface in the interior hexagonal counterbore, in the outer-hexagonal locking plate
The heart has raised outer-hexagonal head to cooperate, and interior hexagonal counterbore can be adjusted ball-and-socket support column turn and latched position, the outer-hexagonal are locked
Piece is to be screwed by its periphery in thrust shaft block bottom surface.
As currently preferred technical solution fourth is that: the bottom of the pedestal has centre bore, and the leather cup passes through
The centre bore is installed in pedestal, and the edge of the leather cup is arranged on the seam allowance positioning of central aperture edge, and by a band center
The bottom cover in hole is pushed down to be fixed with circlip.
The beneficial effects of the present invention are: due to the present invention in addition to the upper end cover and step respectively with shell both ends
End ring thread connection is able to solve outside stator built-in line difficult problem, and the step and thrust shaft block is also made to pass through screw thread pair
Connection, the pedestal couple with thrust shaft block also by screw thread pair, and wherein leather cup is fixed in pedestal, in installation process
In, before last mounting seat and leather cup, first carries out the turn of ball-and-socket support column and adjust thrust bearing group and thrust disc group for armature spindle
It goes up and down to adjust the length of motor rotor shaft and string quantity of motion to after properly, then pedestal and leather cup is installed, when maintenance is wanted
When readjusting the length and string quantity of motion of motor rotor shaft, it is only necessary to pedestal or leather cup are removed, so, the present invention has
Stator built-in line can be made convenient, can accurately adjust motor rotor shaft by ball-and-socket support column after capable of also facilitating motor to install
Length and string quantity of motion reduce the beneficial effect of installation and maintenance cost.
Detailed description of the invention
Thread connection Water well of the invention is described in more detail with submersible motor with reference to the accompanying drawing.
Fig. 1 is the sectional structure chart of thread connection Water well submersible motor of the present invention.
Fig. 2 is the main view of thread connection Water well submersible motor of the present invention.
Fig. 3 is the perspective view of Fig. 2.
Fig. 4 is the section view knot of step installation properties of journal bearing lubricated in thread connection Water well submersible motor of the present invention
Composition.
Fig. 5 is the main view of step in thread connection Water well submersible motor of the present invention.
Fig. 6 is the sectional view along A-A of Fig. 5.
Fig. 7 is the perspective view of Fig. 6.
Fig. 8 is the perspective view of Fig. 5.
Fig. 9 is the main view of thrust shaft block installation ball-and-socket support column in thread connection Water well submersible motor of the present invention
Figure.
Figure 10 is the B-B direction cross-sectional view of Fig. 9.
Figure 11 is the main view of thrust shaft block in thread connection Water well submersible motor of the present invention.
Figure 12 is the C-C of Figure 11 to cross-sectional view.
Figure 13 is the perspective view of Figure 12.
Figure 14 is the perspective view of Figure 11.
Figure 15 is the main view of ball-and-socket support column in thread connection Water well submersible motor of the present invention.
Figure 16 is the D-D of Figure 15 to cross-sectional view.
Figure 17 is the perspective view of Figure 16.
Figure 18 is the main view of outer-hexagonal locking plate in thread connection Water well submersible motor of the present invention.
Figure 19 is the E-E of Figure 18 to cross-sectional view.
Figure 20 is the perspective view of Figure 18.
Figure 21 is the cross-sectional view of pedestal installation leather cup in thread connection Water well submersible motor of the present invention.
Figure 22 is the main view of pedestal in thread connection Water well submersible motor of the present invention.
Figure 23 is the F-F of Figure 22 to cross-sectional view.
Figure 24 is the perspective view of Figure 23.
Figure 25 is the perspective view of Figure 22.
Specific embodiment
As shown in Fig. 1~25, the embodiment of thread connection Water well submersible motor of the present invention is: including end socket 1,
Shell 2, top chock 3 and upper sliding bearing 31, upper end cover 4, stator 5, rotor 6, step 7 and properties of journal bearing lubricated 71 are stopped
Thrust bearing seat 8 and thrust bearing component 81, pedestal 9 and the leather cup 10 being fitted into, wherein stator 5 is mounted in shell 2, and
And the both ends of shell 2 are welded with externally threaded end ring 21, the end socket 1 and top chock 3 and upper end cover 4 are connected by bolts
Together, the upper end cover 4 and step 7 21 thread connection of end ring with 2 both ends of shell respectively, and it is close by setting sealing ring
Envelope and holding screw locking, the thrust bearing component 81 include thrust disc group 811 and thrust bearing group 812 and screw thread connection
Connect and carry the ball-and-socket support column 813 of 812 bottom of thrust bearing group in 8 bottom centre of thrust shaft block, the step 7 with
Thrust shaft block 8 is to be coupled by screw thread pair, and seal and holding screw lock in screw thread pair connection position setting sealing ring
Fixed, the pedestal 9 is also to be coupled by screw thread pair, and sealing ring is arranged at screw thread pair connection position with thrust shaft block 8
Sealing, wherein the leather cup 10 is fixed in pedestal 9.In the present embodiment, end socket 1, end ring 21, top chock 3, upper end cover 4,
Step 7, thrust shaft block 8, pedestal 9 can manufacture post-processing using cast iron or cast steel, and shell 2 uses stainless steel control
It makes, stator 5 is first pressed into shell 2, then welds the end ring 21 at both ends, reprocesses 21 end face of end ring and external screw thread, finally
Stator built-in line is carried out, the step 7 couples with the screw thread pair of thrust shaft block 8 and the spiral shell of pedestal 9 and thrust shaft block 8
Line duplicate invoice, which connects, can design internal and external threads connection according to motor seal requirement, and the leather cup 10 is fixed on the knot in pedestal 9
The open end of leather cup is mainly fixed in pedestal 9 by structure mode；During the installation process, last mounting seat 9 and leather cup 10
Before, it first carries out 813 turn of ball-and-socket support column and adjusts thrust bearing group 812 and thrust disc group 811 and hold 6 shaft end of rotor to go up and down
The length and string quantity of motion for adjusting motor rotor shaft are installed to after suitable, then by pedestal 9 and leather cup 10, will be again when repairing
When adjusting the length and string quantity of motion of motor rotor shaft, it is only necessary to pedestal 9 or leather cup 10 are removed, so, the present invention has
Stator built-in line can be made convenient, can accurately adjust motor rotor shaft by ball-and-socket support column after capable of also facilitating motor to install
Length and string quantity of motion reduce the beneficial effect of installation and maintenance cost.
As shown in Fig. 1~14, as a preferred embodiment of the present invention first is that: the step 7 and thrust bearing
The screw thread pair connection of seat 8 is to realize connection by the internal screw thread of 8 upper end of external screw thread and thrust shaft block outside 7 lower end of step
's.It is that the smooth of outer surface of motor and sealing effect are controlled using optimal threaded connection mode to greatest extent in the present embodiment
Fruit.
As shown in Fig. 1~25, as a preferred embodiment of the present invention second is that: the pedestal 9 and thrust shaft block 8
Screw thread pair connection is to realize to couple with the external screw thread of 8 lower end of thrust shaft block by the internal screw thread of 9 upper end of pedestal.The present embodiment
In, it is that the smooth and sealing effect of outer surface of motor is controlled using optimal threaded connection mode to greatest extent.
As shown in Fig. 1,9~20, as a preferred embodiment of the present invention third is that: the tail of the ball-and-socket support column 813
Portion axle center has interior hexagonal counterbore 814, is equipped with one in the interior hexagonal counterbore 814 and is fixed on 8 bottom surface of thrust shaft block
Outer-hexagonal locking plate 82,82 center of outer-hexagonal locking plate have raised outer-hexagonal head 821 to cooperate interior hexagonal counterbore 814 can be by ball-and-socket branch
813 turn of bearing column adjusts and latched position, and the outer-hexagonal locking plate 82 is to be screwed by its periphery 822 in thrust bearing
8 bottom surfaces of seat.It is that ball-and-socket support column 813 is effectively enable to facilitate adjusting and locking by outer-hexagonal locking plate 82 in the present embodiment,
Not needing additional means can operate, and outer-hexagonal locking plate 82 can use metal stamping formed, also moldable casting.
As shown in Fig. 1,21~25, as a preferred embodiment of the present invention fourth is that: during the bottom of the pedestal 9 has
Heart hole 91, the leather cup 10 are installed in pedestal 9 by the centre bore 91, and the edge of the leather cup 10 is arranged on 91 side of centre bore
The seam allowance of edge positions, and is pushed down by a bottom cover 92 with centre bore and fixed with circlip 93.In the present embodiment, bottom cover 92 is not still
For be fixed with sealing cup 10, be also used to support and live to be operated internal water-filling by motor and generate internal pressure that leather cup 10 is allowed to sink
Bottom, avoids 10 excessive deformation of leather cup, the centre bore of bottom cover 92 for breathing freely, bottom cover 92 can using metal stamping formed,
Moldable casting, this structure can first install pedestal 9, finally just install leather cup 10, fixed so that it is convenient to skin with circlip 93
The installation and maintenance of bowl 10 also facilitate and adjust the lifting of ball-and-socket support column 813.
The above is the preferred embodiment of the present invention, is not constituted a limitation on the scope of protection of the present invention, as long as
It is to implement the purpose of the present invention with essentially identical means, all should belong to protection scope of the present invention.
Claims (5)
1. a kind of thread connection Water well submersible motor, including end socket (1), shell (2), top chock (3) and upper sliding
Bearing (31), upper end cover (4), stator (5), rotor (6), step (7) and properties of journal bearing lubricated (71), thrust shaft block (8)
With thrust bearing component (81), pedestal (9) and the leather cup (10) being fitted into, wherein stator (5) is mounted in shell (2),
And the both ends of shell (2) are welded with externally threaded end ring (21), the end socket (1) and top chock (3) and upper end cover (4)
It is connected by bolts together, the upper end cover (4) and step (7) join with end ring (21) screw thread at shell (2) both ends respectively
Connect, and by setting sealing ring seal and holding screw locking, the thrust bearing component (81) include thrust disc group (811) and
Thrust bearing group (812), and be threadably coupled within thrust shaft block (8) bottom centre and carry thrust bearing group (812) bottom
Ball-and-socket support column (813), it is characterised in that: the step (7) with thrust shaft block (8) is coupled by screw thread pair,
And it is sealed in screw thread pair connection position setting sealing ring and holding screw locks, the pedestal (9) and thrust shaft block (8)
It is also to be coupled by screw thread pair, and sealed in screw thread pair connection position setting sealing ring, wherein the leather cup (10) is solid
It is scheduled in pedestal (9).
2. thread connection Water well submersible motor according to claim 1, it is characterised in that: the step
(7) coupling with the screw thread pair of thrust shaft block (8) is external screw thread and thrust shaft block (8) by outside step (7) lower end
The internal screw thread of upper end realizes connection.
3. thread connection Water well submersible motor according to claim 1, it is characterised in that: the pedestal (9) with
The screw thread pair connection of thrust shaft block (8) is the external screw thread of internal screw thread and thrust shaft block (8) lower end by pedestal (9) upper end
Realize connection.
4. thread connection Water well submersible motor according to claim 1, it is characterised in that: the ball-and-socket support column
(813) tail portion axle center has interior hexagonal counterbore (814), is equipped with one in the interior hexagonal counterbore (814) and is fixed on thrust
The outer-hexagonal locking plate (82) of bearing block (8) bottom surface, outer-hexagonal locking plate (82) center have six in raised outer-hexagonal head (821) cooperation
Angle counterbore (814) can adjust (813) turn of ball-and-socket support column and latched position, and the outer-hexagonal locking plate (82) is to pass through it
Periphery (822) is screwed in thrust shaft block (8) bottom surface.
5. thread connection Water well submersible motor according to claim 1, it is characterised in that: the pedestal (9)
Bottom has centre bore (91), and the leather cup (10) is installed in pedestal (9) by the centre bore (91), the side of the leather cup (10)
Edge is arranged on the seam allowance positioning at centre bore (91) edge, and is pushed down with circlip (93) admittedly by a bottom cover (92) with centre bore
It is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507661.8A CN109286267B (en) | 2018-12-11 | Screw thread connection water filling type submersible motor for well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811507661.8A CN109286267B (en) | 2018-12-11 | Screw thread connection water filling type submersible motor for well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109286267A true CN109286267A (en) | 2019-01-29 |
| CN109286267B CN109286267B (en) | 2024-06-21 |
Family
ID=
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285534Y (en) * | 1997-01-16 | 1998-07-01 | 中原石油勘探局电潜泵技术研究所 | Submerged motor for well |
| CN2393254Y (en) * | 1999-10-29 | 2000-08-23 | 陈瑞珍 | Submersible motor |
| CN2607693Y (en) * | 2002-12-28 | 2004-03-24 | 陈瑞珍 | Submersible motor base structure device |
| CN1563665A (en) * | 2004-03-29 | 2005-01-12 | 濮阳市信宇石油机械化工有限公司 | Automatic controlled, energy saving environmental protected beam-pumping unit |
| WO2007031147A1 (en) * | 2005-09-13 | 2007-03-22 | Komet Group Holding Gmbh | Tool head with adjusting motor |
| CN201536289U (en) * | 2009-06-11 | 2010-07-28 | 江门市瑞荣泵业有限公司 | Diving motor lower bearing seat structure |
| CN104836366A (en) * | 2015-05-15 | 2015-08-12 | 河北虹银泵业股份有限公司 | Anti-eccentric-wear submersible motor |
| US20160372987A1 (en) * | 2012-06-18 | 2016-12-22 | Inpro/Seal Llc | Explosion-proof current diverting device |
| CN209030023U (en) * | 2018-12-11 | 2019-06-25 | 广东瑞荣泵业有限公司 | Thread connection Water well submersible motor |
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2285534Y (en) * | 1997-01-16 | 1998-07-01 | 中原石油勘探局电潜泵技术研究所 | Submerged motor for well |
| CN2393254Y (en) * | 1999-10-29 | 2000-08-23 | 陈瑞珍 | Submersible motor |
| CN2607693Y (en) * | 2002-12-28 | 2004-03-24 | 陈瑞珍 | Submersible motor base structure device |
| CN1563665A (en) * | 2004-03-29 | 2005-01-12 | 濮阳市信宇石油机械化工有限公司 | Automatic controlled, energy saving environmental protected beam-pumping unit |
| WO2007031147A1 (en) * | 2005-09-13 | 2007-03-22 | Komet Group Holding Gmbh | Tool head with adjusting motor |
| CN201536289U (en) * | 2009-06-11 | 2010-07-28 | 江门市瑞荣泵业有限公司 | Diving motor lower bearing seat structure |
| US20160372987A1 (en) * | 2012-06-18 | 2016-12-22 | Inpro/Seal Llc | Explosion-proof current diverting device |
| CN104836366A (en) * | 2015-05-15 | 2015-08-12 | 河北虹银泵业股份有限公司 | Anti-eccentric-wear submersible motor |
| CN209030023U (en) * | 2018-12-11 | 2019-06-25 | 广东瑞荣泵业有限公司 | Thread connection Water well submersible motor |
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