CN102761197A - Balancer and dynamic seal integrated structure - Google Patents
Balancer and dynamic seal integrated structure Download PDFInfo
- Publication number
- CN102761197A CN102761197A CN2012102389532A CN201210238953A CN102761197A CN 102761197 A CN102761197 A CN 102761197A CN 2012102389532 A CN2012102389532 A CN 2012102389532A CN 201210238953 A CN201210238953 A CN 201210238953A CN 102761197 A CN102761197 A CN 102761197A
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- Prior art keywords
- main shaft
- annular
- movable sealing
- end cap
- spring
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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 the 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 the motor used under water.Balancer commonly used now has three kinds of forms: external capsule-type, diaphragm type and piston type.They are through ambient pressure compression balancer, and balancer compression internal liquid increases liquid pressure, realizes internal and external pressure balance.Wherein external capsule-type is because an external capsule or flexible pipe, needs fixingly separately, twines, collides or rub with other objects sometimes, make it reveal inefficacy, and it is big to take volume.Diaphragm type adopts rubber or other to process film and is installed on motor afterbody or centre, because long-time the use, film may break or fatigue damage, and makes difficulty, and cost is high.Piston type is that piston is installed in the piston cylinder, and this structural safety is reliable, and cost is low, but conventional piston type with the piston independent installation, it is big to take volume.
Output shaft is at high speed rotating when work for submersible machine, and motor itself needs sealing again, so the output shaft position needs a movable sealing, should guarantee not influence the rotation of output shaft, guarantees sealing again.
Summary of the invention
The objective 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.
The object of the invention is realized through following technical scheme: balancer and movable sealing integrative-structure, and 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, and the outside of described electric motor end cap is equipped with the integrated tank hatchcover, and the end face that the integrated tank hatchcover connects end cap is provided with annular deep trouth; In the annular deep trouth annular piston is installed, the integrated tank hatchcover is provided with the connecting through hole A that is communicated with annular deep trouth, and electric motor end cap is provided with the connecting through hole B that is communicated with annular deep trouth; Integrated tank hatchcover inside also is provided with movable sealing chamber and axis hole B, and axis hole B is communicated with the movable sealing chamber, and main shaft runs through movable sealing chamber and axis hole B successively; Main shaft is provided with boss, is positioned on the main shaft in the outside of boss to be arranged with spring and rotating ring successively, and spring one end presses on the raised head face; The other end of spring presses on the rotating ring, and spring and rotating ring are positioned at the movable sealing chamber of integrated tank hatchcover, and end, movable sealing chamber is installed with stationary ring; Stationary ring is set in outside the main shaft, and rotating ring presses on the stationary ring under spring action.
Be equipped with seal groove on inner cylindrical wall that described annular piston contacts with annular deep trouth and the outer cylindrical wall, be provided with the O RunddichtringO in the seal groove.
Described integrated tank hatchcover with end face that electric motor end cap contacts on be provided with annular seal groove, be provided with the O RunddichtringO in the annular seal groove.
The present invention has the following advantages: the present invention integrates submersible machine piston pressure balanced structure and movable sealing structure, makes submersible machine simple for structure, compact, has improved reliability; Overcome that existing submersible machine takies that volume is big, the shortcoming of complex structure, poor reliability; Reduced the weight of submersible machine, reduced cost, the movable sealing structure that adopts rotating ring to cooperate with stationary ring; Sealing is reliable, and has prolonged the useful life of movable sealing.
Description of drawings
Fig. 1 is a structural representation of the present invention
Among the 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-annular deep trouth, 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 is done further description:
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, and main shaft 4 runs through axis hole A9, and the outside of described electric motor end cap 8 is equipped with integrated tank hatchcover 2; Integrated tank hatchcover 2 is installed on the electric motor end cap 8 through screw, and the end face that integrated tank hatchcover 2 connects end cap is provided with annular deep trouth 10, in the annular deep trouth 10 annular piston 3 is installed; Integrated tank hatchcover 2 is provided with the connecting through hole A11 that is communicated with annular deep trouth 10, makes outside water can get into annular deep trouth 10, and electric motor end cap 8 is provided with the connecting through hole B12 that is communicated with annular deep trouth 10; Integrated tank hatchcover 2 inside also are provided with movable sealing chamber 13 and axis hole B14, and axis hole B14 is communicated with movable sealing chamber 13, and main shaft 4 runs through movable sealing chamber 13 and axis hole B14 successively; Main shaft 4 is provided with boss 15, is positioned on the main shaft 4 in the outside of boss 15 to be arranged with spring 7 and rotating ring 6 successively, and spring 7 one ends press on boss 15 end faces; The other end of spring 7 presses on the rotating ring 6, and spring 7 and rotating ring 6 are positioned at the movable sealing chamber 13 of integrated tank hatchcover 2, and 13 ends, movable sealing chamber are provided with stepped hole; Be installed with stationary ring 5 in the stepped hole of annular seal space end, stationary ring 5 is made by carbide alloy, and stationary ring 5 is set in outside the main shaft 4; Spring 7 promotes rotating ring 6 through compression stress, and rotating ring 6 is pressed on the stationary ring 5.
Be equipped with seal groove on inner cylindrical wall that described annular piston 3 contacts with annular deep trouth 10 and the outer cylindrical wall, be provided with O RunddichtringO 1 in the seal groove, realize the sealing of annular piston 3 and annular deep trouth 10 through compressing this O RunddichtringO 1.
Described integrated tank hatchcover 2 with end face that electric motor end cap 8 contacts on be provided with annular seal groove, be provided with O RunddichtringO 1 in the annular seal groove.
The course of work of the present invention is following: when the outer water voltage rise is high; Outer water gets into annular deep trouth 10 inside through connecting through hole A11, and annular piston 3 is under pressure and moves downward, the liquid in the compression motor; Realize internal and external pressure balance; When hydraulic pressure reduced, motor internal liquid pushed back annular piston 3 again, realized internal and external pressure balance.When motor rotated, rotating ring 6 rotated with main shaft 4, because the unusual smooth of dynamic and static ring contact surface, and be prone to reach, thus when rotation relatively, 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), and electric motor end cap (8) is provided with axis hole A (9), and main shaft (4) runs through axis hole A (9); It is characterized in that: the outside of described electric motor end cap (8) is equipped with integrated tank hatchcover (2); The end face that integrated tank hatchcover (2) connects end cap is provided with annular deep trouth (10), and annular piston (3) is installed in the annular deep trouth (10), and integrated tank hatchcover (2) is provided with the connecting through hole A (11) that is communicated with annular deep trouth (10); Electric motor end cap (8) is provided with the connecting through hole B (12) that is communicated with annular deep trouth (10); Integrated tank hatchcover (2) inside also is provided with movable sealing chamber (13) and axis hole B (14), and axis hole B (14) is communicated with movable sealing chamber (13), and 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 the outside of boss (15) and be arranged with spring (7) and rotating ring (6) successively, spring (7) one ends press on boss (15) end face, and the other end of spring (7) presses on the 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), and stationary ring (5) is set in outside the main shaft (4), and rotating ring (6) presses on the stationary ring (5).
2. balancer according to claim 1 and movable sealing integrative-structure is characterized in that: be equipped with seal groove on inner cylindrical wall that described annular piston (3) contacts with annular deep trouth (10) and the outer cylindrical wall, be provided with O RunddichtringO (1) in the seal groove.
3. balancer according to claim 1 and movable sealing integrative-structure is characterized in that: described integrated tank hatchcover (2) with end face that electric motor end cap (8) contacts on be provided with annular seal groove, be provided with O RunddichtringO (1) in the 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 true CN102761197A (en) | 2012-10-31 |
| CN102761197B CN102761197B (en) | 2014-07-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210238953.2A Active CN102761197B (en) | 2012-07-11 | 2012-07-11 | Balancer and dynamic seal integrated structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN102761197B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207418A (en) * | 2015-09-07 | 2015-12-30 | 中国石油天然气集团公司 | Downhole motor protector and application thereof |
| CN105515284A (en) * | 2016-01-11 | 2016-04-20 | 东方电气集团东方电机有限公司 | Piston type protector |
| CN105507808A (en) * | 2016-01-11 | 2016-04-20 | 东方电气集团东方电机有限公司 | Underground drilling tool motor |
| CN113389899A (en) * | 2021-06-18 | 2021-09-14 | 广西玉柴机器股份有限公司 | Suspension type double-expansion-ring sealing mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201204503Y (en) * | 2008-05-24 | 2009-03-04 | 张万忠 | Dry-type waterproof type flame-proof diving dual-function motor |
| US20090133485A1 (en) * | 2006-02-14 | 2009-05-28 | Zf Lenksysteme Gmbh | Device for Uncovering an Opening in a Housing Part of a Steering Gear |
| 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 |
-
2012
- 2012-07-11 CN CN201210238953.2A patent/CN102761197B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090133485A1 (en) * | 2006-02-14 | 2009-05-28 | Zf Lenksysteme Gmbh | Device for Uncovering an Opening in a Housing Part of a Steering Gear |
| 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 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207418A (en) * | 2015-09-07 | 2015-12-30 | 中国石油天然气集团公司 | Downhole motor protector and application thereof |
| 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 |
| CN105515284A (en) * | 2016-01-11 | 2016-04-20 | 东方电气集团东方电机有限公司 | Piston type protector |
| CN105507808A (en) * | 2016-01-11 | 2016-04-20 | 东方电气集团东方电机有限公司 | Underground drilling tool 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 |
| 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 |
| CN113389899A (en) * | 2021-06-18 | 2021-09-14 | 广西玉柴机器股份有限公司 | Suspension type double-expansion-ring sealing mechanism |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102761197B (en) | 2014-07-30 |
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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. |