CN102761197B - Balancer and dynamic seal integrated structure - Google Patents
Balancer and dynamic seal integrated structure Download PDFInfo
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- CN102761197B CN102761197B CN201210238953.2A CN201210238953A CN102761197B CN 102761197 B CN102761197 B CN 102761197B CN 201210238953 A CN201210238953 A CN 201210238953A CN 102761197 B CN102761197 B CN 102761197B
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- ring
- main shaft
- movable sealing
- end cap
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Abstract
The invention discloses a balancer and dynamic seal integrated structure which comprises a motor end cover (8) and a main shaft (4), wherein an integrated hatch cover (2) is installed at the outer side of the motor end cover (8); the end surface of a connecting end cover of the integrated hatch cover (2) is provided with an annular deep groove (10); an annular piston (3) is installed in the annular deep groove (10); the annular deep groove (10) is internally provided with an annular piston (3); the integrated hatch cover (2) is also internally provided with a dynamic seal cavity (13) and an axial hole B (14); a spring (7) and a dynamic ring (6) are sleeved sequentially on a main shaft (4) positioned at the outer side of a boss (15); the end part of the dynamic seal cavity (13) is fixedly provided with a static ring (5); the static ring (5) is sleeved out of the main shaft (4), and the dynamic ring (6) butts against the static ring (5) under the effect of the spring (7). The balancer and dynamic seal integrated structure provided by the invention has the beneficial effects that an underwater motor is simple and compact in structure, the reliability is improved, the weight of the underwater motor is reduced, the cost is lowered, the seal structure is reliable, and the service life of a dynamic seal is prolonged.
Description
Technical field
The present invention relates to submersible motor technical field, particularly a kind of balancer and movable sealing integrative-structure.
Background technology
Oil-filled balanced type submersible machine is little with its volume, lightweight advantage, and having arrived widely in motor applied under water.Conventional balancer has three kinds of forms now: external capsule-type, diaphragm type and piston type.They compress balancer by ambient pressure, and balancer compression internal liquid, increases liquid pressure, realizes internal and external pressure balance.Wherein external capsule-type, due to an external capsule or flexible pipe, need to be fixed separately, is wound around, collides or rub sometimes with other objects, it is revealed and lost efficacy, and it is large to take volume.Diaphragm type adopts rubber or other to make film and is installed on motor afterbody or centre, and due to long-time use, film may break or fatigue damage, and manufactures difficulty, and cost is high.Piston type is that piston is installed in piston cylinder, and this structural safety is reliable, and cost is low, and still traditional piston type is installed piston separately, takies volume large.
Output shaft is at High Rotation Speed in the time of work for submersible machine, and motor itself needs again sealing, so output shaft position needs a movable sealing, should ensure not affect the rotation of output shaft, ensures again sealing.
Summary of the invention
The object of the invention is to overcome the shortcoming of prior art, a kind of simple for structure, compact, balancer and movable sealing integrative-structure of having reduced submersible machine weight is provided.
Object of the present invention is achieved through the following technical solutions: balancer and movable sealing integrative-structure, it comprises electric motor end cap and main shaft, electric motor end cap is provided with axis hole A, main shaft runs through axis hole A, the outside of described electric motor end cap is provided with integrated tank hatchcover, the end face that integrated tank hatchcover connects end cap is provided with ring type deep trough, annular piston is installed in ring type deep trough, integrated tank hatchcover is provided with the connecting through hole A being communicated with ring type deep trough, electric motor end cap is provided with the connecting through hole B that is communicated with ring type deep trough, integrated tank hatchcover inside is also provided with movable sealing chamber and axis hole B, axis hole B is communicated with movable sealing chamber, main shaft runs through movable sealing chamber and axis hole B successively, main shaft is provided with boss, be positioned on the main shaft in outside of boss and be arranged with successively spring and rotating ring, spring one end presses on raised head face, the other end of spring presses on rotating ring, spring and rotating ring are positioned at the movable sealing chamber of integrated tank hatchcover, end, movable sealing chamber is installed with stationary ring, stationary ring is set in outside main shaft, and rotating ring presses on stationary ring under spring action.
In the inner cylindrical wall that described annular piston contacts with ring type deep trough and outer cylindrical wall, be equipped with seal groove, in seal groove, be provided with O RunddichtringO.
Described integrated tank hatchcover is provided with annular seal groove on the end face contacting with electric motor end cap, is provided with O RunddichtringO in annular seal groove.
The present invention has the following advantages: the present invention integrates submersible machine piston pressure balanced structure and movable sealing structure, make submersible machine simple for structure, compact, improve reliability, overcome that existing submersible machine takies that volume is large, the shortcoming of complex structure, poor reliability, the weight that has reduced submersible machine, has reduced cost, the movable sealing structure that adopts rotating ring to coordinate with stationary ring, sealing is reliable, and has extended the useful life of movable sealing.
Brief description of the drawings
Fig. 1 is structural representation of the present invention
In figure, 1-O RunddichtringO, 2-integrated tank hatchcover, 3-annular piston, 4-main shaft, 5-stationary ring, 6-rotating ring, 7-spring, 8-electric motor end cap, 9-axis hole A, 10-ring type deep trough, 11-connecting through hole A, 12-connecting through hole B, 13-movable sealing chamber, 14-axis hole B, 15-boss.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described:
As shown in Figure 1, balancer and movable sealing integrative-structure, it comprises electric motor end cap 8 and main shaft 4, electric motor end cap 8 is provided with axis hole A9, main shaft 4 runs through axis hole A9, the outside of described electric motor end cap 8 is provided with integrated tank hatchcover 2, integrated tank hatchcover 2 is installed on electric motor end cap 8 by screw, the end face that integrated tank hatchcover 2 connects end cap is provided with ring type deep trough 10, annular piston 3 is installed in ring type deep trough 10, integrated tank hatchcover 2 is provided with the connecting through hole A11 being communicated with ring type deep trough 10, make outside water can enter ring type deep trough 10, electric motor end cap 8 is provided with the connecting through hole B12 that is communicated with ring type deep trough 10, integrated tank hatchcover 2 inside are also provided with movable sealing chamber 13 and axis hole B14, axis hole B14 is communicated with movable sealing chamber 13, main shaft 4 runs through movable sealing chamber 13 and axis hole B14 successively, main shaft 4 is provided with boss 15, be positioned on the main shaft 4 in outside of boss 15 and be arranged with successively spring 7 and rotating ring 6, spring 7 one end press on boss 15 end faces, the other end of spring 7 presses on rotating ring 6, spring 7 and rotating ring 6 are positioned at the movable sealing chamber 13 of integrated tank hatchcover 2, 13 ends, movable sealing chamber are provided with stepped hole, in the stepped hole of annular seal space end, be installed with stationary ring 5, stationary ring 5 is made by carbide alloy, stationary ring 5 is set in outside main shaft 4, spring 7 passes through compression stress, promote rotating ring 6, rotating ring 6 is pressed on stationary ring 5.
In the inner cylindrical wall that described annular piston 3 contacts with ring type deep trough 10 and outer cylindrical wall, be equipped with seal groove, in seal groove, be provided with O RunddichtringO 1, realize the sealing of annular piston 3 and ring type deep trough 10 by compressing this O RunddichtringO 1.
Described integrated tank hatchcover 2 is provided with annular seal groove on the end face contacting with electric motor end cap 8, is provided with O RunddichtringO 1 in annular seal groove.
The course of work of the present invention is as follows: in the time that extraneous hydraulic pressure raises, extraneous water enters ring type deep trough 10 inside by connecting through hole A11, annular piston 3 is under pressure and moves downward, liquid in compression motor, realize internal and external pressure balance, in the time that hydraulic pressure reduces, motor internal liquid pushes back annular piston 3 again, realizes internal and external pressure balance.When electric machine rotation, rotating ring 6 rotates with main shaft 4, because dynamic and static ring contact surface is very smooth, and easily reach, thus in the time relatively rotating, also can regard two very even curface contacts as, thus play sealing function.
Claims (3)
1. balancer and movable sealing integrative-structure, it comprises electric motor end cap (8) and main shaft (4), electric motor end cap (8) is provided with axis hole A(9), main shaft (4) runs through axis hole A(9), it is characterized in that: the outside of described electric motor end cap (8) is provided with integrated tank hatchcover (2), the end face that integrated tank hatchcover (2) connects end cap is provided with ring type deep trough (10), annular piston (3) is installed in ring type deep trough (10), integrated tank hatchcover (2) is provided with the connecting through hole A(11 being communicated with ring type deep trough (10)), electric motor end cap (8) is provided with the connecting through hole B(12 that is communicated with ring type deep trough (10)), integrated tank hatchcover (2) inside is also provided with movable sealing chamber (13) and axis hole B(14), axis hole B(14) be communicated with movable sealing chamber (13), main shaft (4) runs through movable sealing chamber (13) and axis hole B(14 successively), main shaft (4) is provided with boss (15), be positioned on the main shaft (4) in outside of boss (15) and be arranged with successively spring (7) and rotating ring (6), spring (7) one end presses on boss (15) end face, the other end of spring (7) presses on rotating ring (6), spring (7) and rotating ring (6) are positioned at the movable sealing chamber (13) of integrated tank hatchcover (2), end, movable sealing chamber (13) is installed with stationary ring (5), stationary ring (5) is set in outside main shaft (4), rotating ring (6) presses on stationary ring (5),
In the time that extraneous hydraulic pressure raises, extraneous water is by connecting through hole A(11) enter ring type deep trough (10) inside, annular piston (3) is under pressure and moves downward, liquid in compression motor, realize internal and external pressure balance, in the time that hydraulic pressure reduces, motor internal liquid pushes back annular piston (3) again, realizes internal and external pressure balance; When electric machine rotation, rotating ring (6) rotates with main shaft (4), and rotating ring (6), stationary ring (5) contact surface are smooth, play sealing function.
2. balancer according to claim 1 and movable sealing integrative-structure, is characterized in that: in the inner cylindrical wall that described annular piston (3) contacts with ring type deep trough (10) and outer cylindrical wall, be equipped with seal groove, be provided with O RunddichtringO (1) in seal groove.
3. balancer according to claim 1 and movable sealing integrative-structure, is characterized in that: described integrated tank hatchcover (2) is provided with annular seal groove on the end face contacting with electric motor end cap (8), is provided with O RunddichtringO (1) in annular seal groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210238953.2A CN102761197B (en) | 2012-07-11 | 2012-07-11 | Balancer and dynamic seal integrated structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210238953.2A CN102761197B (en) | 2012-07-11 | 2012-07-11 | Balancer and dynamic seal integrated structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102761197A CN102761197A (en) | 2012-10-31 |
| CN102761197B true CN102761197B (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210238953.2A Active CN102761197B (en) | 2012-07-11 | 2012-07-11 | Balancer and dynamic seal integrated structure |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207418B (en) * | 2015-09-07 | 2018-07-13 | 中国石油天然气集团公司 | Downhole electrical motor protector and its application |
| CN105507808B (en) * | 2016-01-11 | 2018-10-09 | 东方电气集团东方电机有限公司 | A kind of down-hole equipment motor |
| CN105515284B (en) * | 2016-01-11 | 2018-05-04 | 东方电气集团东方电机有限公司 | A kind of piston type protector |
| CN113389899B (en) * | 2021-06-18 | 2024-04-09 | 广西玉柴机器股份有限公司 | Suspension type double-expansion-ring sealing mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201204503Y (en) * | 2008-05-24 | 2009-03-04 | 张万忠 | Dry-type waterproof type flame-proof diving dual-function motor |
| CN201450387U (en) * | 2009-04-23 | 2010-05-05 | 西安航空动力控制有限责任公司 | Sealing device of motor shaft |
| CN202696357U (en) * | 2012-07-11 | 2013-01-23 | 成都欧迅海洋工程装备科技有限公司 | Balancer and dynamic seal integrated structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007093235A1 (en) * | 2006-02-14 | 2007-08-23 | Zf Lenksysteme Gmbh | Device for uncovering an opening in a housing part of a steering gear |
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2012
- 2012-07-11 CN CN201210238953.2A patent/CN102761197B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201204503Y (en) * | 2008-05-24 | 2009-03-04 | 张万忠 | Dry-type waterproof type flame-proof diving dual-function motor |
| CN201450387U (en) * | 2009-04-23 | 2010-05-05 | 西安航空动力控制有限责任公司 | Sealing device of motor shaft |
| CN202696357U (en) * | 2012-07-11 | 2013-01-23 | 成都欧迅海洋工程装备科技有限公司 | Balancer and dynamic seal integrated structure |
Also Published As
| Publication number | Publication date |
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| CN102761197A (en) | 2012-10-31 |
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Address after: High tech Zone Gaopeng road in Chengdu city of Sichuan province 610017 5 Building No. 2 Room 501 Patentee after: CHENGDU OUXUN TECHNOLOGY CO., LTD. Address before: High tech Zone Gaopeng road in Chengdu city of Sichuan province in 610017 B No. 5 Room 201 Patentee before: Chengdu Ouxun Ocean Engineering Equipment Technology Co., Ltd. |