CN201616726U - Dynamic sealing device of high-power high rotating-speed submersible motor with cooling function - Google Patents
Dynamic sealing device of high-power high rotating-speed submersible motor with cooling function Download PDFInfo
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- CN201616726U CN201616726U CN2010201128940U CN201020112894U CN201616726U CN 201616726 U CN201616726 U CN 201616726U CN 2010201128940 U CN2010201128940 U CN 2010201128940U CN 201020112894 U CN201020112894 U CN 201020112894U CN 201616726 U CN201616726 U CN 201616726U
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- axle sleeve
- shaft sleeve
- sealing device
- rotating shaft
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Abstract
The utility model relates to a dynamic sealing device of a high-power high rotating-speed submersible motor with a cooling function. The dynamic sealing device comprises a stator (1) and a rotating shaft (10), wherein, a shaft sleeve (8) is fixed on the rotating shaft (10); a sealing seat (3) is sealed with the shaft sleeve (8); a sealing gland (5) presses a skeleton seal (6) into a groove of the sealing seat (3); a sealing ring III (9) is arranged between the shaft sleeve (8) and the rotating shaft (10); the shaft sleeve (8) is provided with a self-circulation cooling structure; a cooling water inlet (12) and a cooling water outlet (13) are formed on the shaft sleeve (8); a vertically arranged blade (14) is arranged in the shaft sleeve (8); and the sealing seat (3) is fixed on an end cover (11) fixed on the stator (1). The dynamic sealing device adopting a combination of skeleton sealing and shaft sealing has high sealing performance, and the self-circulation cooling structure of the shaft sleeve solves the problem of heating of the shaft sleeve and a bearing due to the high speed rotation of the submersible motor, thereby ensuring safe, reliable and long-time running of the submersible motor.
Description
Technical field
The utility model relates to a kind of dynamic sealing device of motor, relates in particular to a kind of dynamic sealing device of high-power and high-speed submerged motor.
Background technology
Along with the expansion of ocean development and port engineering, engineerings such as China's port construction, the training of channel and marine reclamation land need working heavy construction boats and ships in a large number, and wherein reamer and dredge pump are supporting under water must use high-power and high-speed submerged motor.Both energy-conserving and environment-protective of dredger of adopting submersible electric motor to drive, digging force is big again, and speed governing is convenient, can also deal with bad working environments.Because submersible electric motor is 20～30 meters operations under water, sealing reliably is the prerequisite of the normal operation of this motor; Existing submersible electric motor is applicable to the small-power submersible electric motor with movable sealing, if be used for high-power and high-speed submerged motor, then because the rotating shaft diameter is big, the rotating speed height, oil sealing and axle sleeve contact wire speed are big, can cause the axle sleeve heating, cause that submersible electric motor leaks and damages.
Summary of the invention
The purpose of this utility model provides a kind of dynamic sealing device that is used for high-power and high-speed submerged motor, its axle sleeve adopts self-loopa cooling structure, inner heat is in time discharged, reduce the intensification of axle sleeve and bearing, guarantee submersible electric motor security of operation, reliable; It is reliable, simple in structure, easy for installation and have characteristics such as refrigerating function concurrently that it has sealingly secure.
The utility model is to implement like this, and this high-power, high speed submerged motor has the dynamic sealing device of refrigerating function concurrently, comprises stator, rotating shaft; Its characteristics are that axle sleeve is fixed in the rotating shaft, and seal receptacle and sleeve sealing in the groove of sealing gland with reinforced seal indentation sealing seat, have sealing ring III sealing between axle sleeve and the rotating shaft, and axle sleeve is a self-loopa cooling structure; Have cooling water inlet and coolant outlet on the axle sleeve, the blade of vertical layout is arranged in the axle sleeve; Seal receptacle is fixed on the end cap, and end cap is fixed on the stator.Its operation principle is: supporting 20～30 meters operations under water of the reamer under water of high-power, high speed submerged motor and large-scale dredger and dredge pump, because the rotating shaft diameter of submersible electric motor is big, the rotating speed height, the linear velocity that oil sealing contacts with axle sleeve is big, can cause the axle sleeve heating up.Axle sleeve among the present invention is a self-loopa cooling structure, utilize river below the large-scale dredger or seawater as cooling water, enter in the axle sleeve from the cooling water inlet of axle sleeve, under the drive of the longitudinal blade that in axle sleeve, rotates, cooling water circulates in axle sleeve, outside coolant outlet is discharged axle sleeve, make the axle sleeve and the bearing cooling of heating simultaneously, assurance submersible electric motor long-term safety is moved reliably.In the groove of sealing gland with reinforced seal indentation sealing seat, make seal receptacle and sleeve sealing, sealing ring III sealing is arranged between axle sleeve and the rotating shaft.When the rotating shaft of submersible electric motor ran up, reinforced seal made between seal receptacle and the axle sleeve and seals, and the oil in the motor can not leak, and outer river or the seawater of motor can not infiltrate motor interior.That dynamic sealing device of the present invention has solved is high-power, the sealing and the cooling problem of high speed submerged motor, thereby has guaranteed safe, the reliable long-term operation of submersible electric motor.
Sealing ring II is housed within seal receptacle in the utility model and the end cap, sealing ring I is housed between end cap and the stator.Sealing ring II makes between seal receptacle and the end cap and seals, and sealing ring I makes between end cap and the stator and seals, thereby has guaranteed between whole motor interior and the motor outside hermetically sealed.
Have pressing plate to separate in the middle of the reinforced seal in the utility model, pressing plate plays location and fixing to reinforced seal.Lubricating oil or lubricating grease are adopted in reinforced seal.Select for use resistant to elevated temperatures lubricating grease or lubricating oil to make sealing medium, can guarantee that motor normally is suitable for.
The utility model compared with prior art has following tangible advantage: reinforced seal and shaft seal combine, good seal performance.The self-loopa cooling structure of axle sleeve utilizes natural river or seawater to circulate in axle sleeve, the axle sleeve of cooling submersible motor and the problem of bearing heating have been solved, according to the 750kw of the utility model structure trial-production, 1480 rev/mins submersible electric motor is example, bearing temperature drops to 67 ℃ from original 83 ℃, has guaranteed long-term, the safe and reliable operation of high-power and high-speed submerged motor.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the enlarged drawing of Fig. 1 bottom bracket axle.
Fig. 3 is the profile of Fig. 2 bottom bracket axle A-A.
Number in the figure is represented: 1-stator, 2-sealing ring I, 3-seal receptacle, 4-sealing ring II, 5-sealing gland, 6-reinforced seal, 7-pressing plate, 8-axle sleeve, 9-sealing ring III, 10-rotating shaft, 11-end cap, 12-cooling water inlet, 13-coolant outlet, 14-blade.
Embodiment
Referring to accompanying drawing 1～3, this dynamic sealing device that has cooling function for high-power and high-speed submerged motor is formed and is comprised stator [1], rotating shaft [10], axle sleeve [8] is fixed in the rotating shaft [10], seal receptacle [3] and axle sleeve [8] sealing, in the groove of sealing gland [5] with reinforced seal [6] indentation sealing seat [3], between axle sleeve [8] and the rotating shaft [10] sealing ring III[9 is arranged], axle sleeve [8] is self-loopa cooling structure, have cooling water inlet [12] and coolant outlet [13] on the axle sleeve [8], the blade [4] that vertical layout is arranged in the axle sleeve [8], seal receptacle [3] is fixed on the end cap [11], and end cap [11] is fixed on the stator [1]; Between seal receptacle [3] and the end cap [11] sealing ring II[4 is housed], between end cap [11] and the stator [1] sealing ring I[2 is housed].Pressing plate [7], the high temperature resistant lubricating grease of lubricated employing of reinforced seal [6] are arranged in the middle of the reinforced seal [6].According to the 750kw of the utility model structure trial-production, 1480 rev/mins high-power and high-speed submerged motor is example, and runnability is stable, temperature rise 67k, and efficient 96.7%, speed governing is steady, is suitable for the various operating mode operations of various rotating speeds.
Claims (3)
1. dynamic sealing device that has cooling function for high-power and high-speed submerged motor, comprise stator [1], rotating shaft [10], it is characterized in that axle sleeve [8] is fixed in the rotating shaft [10], seal receptacle [3] and axle sleeve [8] sealing, in the groove of sealing gland [5] with reinforced seal [6] indentation sealing seat [3], between axle sleeve [8] and the rotating shaft [10] sealing ring III[9 is arranged], axle sleeve [8] is self-loopa cooling structure, have cooling water inlet [12] and coolant outlet [13] on the axle sleeve [8], the blade [14] that vertical layout is arranged in the axle sleeve [8], seal receptacle [3] is fixed on the end cap [11], and end cap [11] is fixed on the stator [1].
2. dynamic sealing device according to claim 1 is characterized in that between seal receptacle [3] and the end cap [11] sealing ring II[4 being housed], between end cap [11] and the stator [1] sealing ring I [2] is housed.
3. dynamic sealing device according to claim 1 is characterized in that in the middle of the reinforced seal [6] pressing plate [7], the lubricated employing lubricating oil or the lubricating grease of reinforced seal [6] being arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201128940U CN201616726U (en) | 2010-02-11 | 2010-02-11 | Dynamic sealing device of high-power high rotating-speed submersible motor with cooling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201128940U CN201616726U (en) | 2010-02-11 | 2010-02-11 | Dynamic sealing device of high-power high rotating-speed submersible motor with cooling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201616726U true CN201616726U (en) | 2010-10-27 |
Family
ID=43003088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201128940U Expired - Lifetime CN201616726U (en) | 2010-02-11 | 2010-02-11 | Dynamic sealing device of high-power high rotating-speed submersible motor with cooling function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201616726U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101820194A (en) * | 2010-02-11 | 2010-09-01 | 浙江临海电机有限公司 | Dynamic sealing device having cooling function for high-power and high-speed submerged motor |
| CN102035305A (en) * | 2010-12-17 | 2011-04-27 | 浙江临海电机有限公司 | High-speed special submerged motor for engineering ship |
| CN109327099A (en) * | 2018-12-21 | 2019-02-12 | 卧龙电气南阳防爆集团股份有限公司 | A kind of amphibian animal permanent magnetism submersible electric motor of degree of protection IP68 |
| CN113364171A (en) * | 2021-06-23 | 2021-09-07 | 中国船舶重工集团衡远科技有限公司 | Underwater motor rotor sealing assembly |
-
2010
- 2010-02-11 CN CN2010201128940U patent/CN201616726U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101820194A (en) * | 2010-02-11 | 2010-09-01 | 浙江临海电机有限公司 | Dynamic sealing device having cooling function for high-power and high-speed submerged motor |
| CN101820194B (en) * | 2010-02-11 | 2011-12-28 | 浙江临海电机有限公司 | Dynamic sealing device having cooling function for high-power and high-speed submerged motor |
| CN102035305A (en) * | 2010-12-17 | 2011-04-27 | 浙江临海电机有限公司 | High-speed special submerged motor for engineering ship |
| CN109327099A (en) * | 2018-12-21 | 2019-02-12 | 卧龙电气南阳防爆集团股份有限公司 | A kind of amphibian animal permanent magnetism submersible electric motor of degree of protection IP68 |
| CN113364171A (en) * | 2021-06-23 | 2021-09-07 | 中国船舶重工集团衡远科技有限公司 | Underwater motor rotor sealing assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG LINHAI ZHEFU MOTOR CO., LTD. Free format text: FORMER NAME: ZHEJIANG LINHAI ELECTRICAL MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 317000 No. 37, carp Hill Road, Linhai City, Zhejiang Patentee after: Zhejiang Linhai Zhefu Electric Machniery Co., Ltd. Address before: 317000 No. 37, carp Hill Road, Linhai City, Zhejiang Patentee before: Zhejiang Linhai Electric Machinery Works Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20101027 Effective date of abandoning: 20111228 |