CN202405914U - Novel submersible motor with labyrinth seal cover - Google Patents
Novel submersible motor with labyrinth seal cover Download PDFInfo
- Publication number
- CN202405914U CN202405914U CN 201120507397 CN201120507397U CN202405914U CN 202405914 U CN202405914 U CN 202405914U CN 201120507397 CN201120507397 CN 201120507397 CN 201120507397 U CN201120507397 U CN 201120507397U CN 202405914 U CN202405914 U CN 202405914U
- Authority
- CN
- China
- Prior art keywords
- seal
- seal cover
- cover
- boss
- submersible motor
- 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.)
- Expired - Fee Related
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a novel submersible motor with a labyrinth seal cover, which comprises a terminal box cover, a wire holder, a casing, an upper bearing, a bearing pressure cover, a seal cover and a shaft. The novel submersible motor with the labyrinth seal cover is characterized in that a boss, a seal slot, a matching hole and a matching surface are processed on the seal cover, another seal slot and another boss are processed on the lower end face of the wire holder, the boss of the seal cover is inserted into the seal slot of the wire holder, and meanwhile, the boss of the wire holder is inserted into the seal slot of the seal cover to form a labyrinth seal structure, and the matching surface of the seal cover is supported on a shaft shoulder of the shaft. The novel submersible motor with the labyrinth seal cover has the advantages that the seal cover rotates along with the shaft during running of a water pump, so that the bosses and the seal slots form labyrinth seal, and further, radial gap is small while resistance is quite high, lubricating grease in the bearing cannot turn to leak, and leakage of the lubricating grease is avoided. Besides, the seal cover cannot be damaged.
Description
Technical field
The utility model relates to a kind of novel submersible motor with labyrinth seal seal cover.
Background technology
The upper bearing (metal) of submersible motor is mounted in the junction block, and bearing need add lubricating grease in use and lubricates, and can generate heat during bearing operation, causes lubricating grease thinning, will leak after lubricating grease is thinning, prevents that lubricating grease from leaking so need sealing device.In existing structure (Fig. 1), below bearing, adorning an outside framework oil seal 20 stops lubricating grease to leak; Because the life-span of outside framework oil seal, the life-span was very short generally at 500-2000 hour, so need often to change; In case changing the untimely lubricating grease that will cause leaks; Cause damage of bearings, and then cause motor to sweep hall and burn, cause very big loss.
Summary of the invention
The purpose of the utility model be solve submersible motor in the existing structure upper bearing (metal) because of lubricating grease leaks existing the problems referred to above, a kind of novel submersible motor with labyrinth seal seal cover is provided.A kind of submersible motor of the utility model design with labyrinth seal seal cover; The connector cover, junction block, casing, upper bearing (metal), bearing gland, seal cover, the axle that comprise submersible motor; It is characterized in that: on seal cover, be processed with boss, seal groove, mating holes, mating surface; Lower surface at junction block also processes seal groove and boss; The boss of seal cover inserts in the seal groove of junction block, and the boss of junction block inserts the interior formation of the seal groove labyrinth seal structure of seal cover simultaneously, and the mating surface of seal cover withstands on the shaft shoulder of axle.It is characterized in that: the seal groove width of seal cover is 10 mm, and the width of boss is 9 mm, and the degree of depth of the two is 12mm; The dimensional tolerance of mating holes is H7, and the dimensional tolerance of axle is k6.It is characterized in that: the seal groove width of junction block is 10 mm, and the width of boss is 9 mm, and the degree of depth is 12mm.Seal cover is along with axle rotates together during the advantage water pump operation of the utility model; Just formed labyrinth seal like this between boss and the seal groove, and because radial clearance is very little, resistance is very big; Lubricating grease in the bearing can not turn round and let out, and has so just stoped the leakage of lubricating grease.And seal cover can not damage yet.
Description of drawings
Below in conjunction with accompanying drawing and instance the utility model is elaborated.
Accompanying drawing 1 is existing structure use principle figure; Accompanying drawing 2 is the seal cover sketch map of the utility model; Accompanying drawing 3 is the utility model use principle figure.
20 is outside framework oil seal among Fig. 1, and 21 is that boss, 22 is that seal groove, 23 is that mating holes, 24 is mating surface among Fig. 2, and 1 is connector cover among Fig. 3, and 2 is screw; 3 is casing, and 4 is bearing, and 5 is bearing gland; 6 is seal cover, and 7 is junction block, and 8 is screw; 9 is axle, and 10 is the seal groove of junction block, and 11 is the boss of junction block.
Embodiment
As shown in the figure, be processed with boss, seal groove, mating holes, mating surface on the seal cover.Seal groove is an annular, and the seal groove width is 10 mm, and the width of boss is 9 mm, and the degree of depth of the two is 12mm; The dimensional tolerance of mating holes is H7.Lower surface at junction block also processes seal groove and boss, and the seal groove width is 10 mm, and the width of boss is 9 mm, and the degree of depth is 12mm.Be used with seal cover and junction block in use, the boss of seal cover inserts in the seal groove of junction block, and the boss of junction block inserts in the seal groove of seal cover simultaneously, and the radial clearance of boss and seal groove is 0.5mm like this, and end play is 3 mm.The mating surface of seal cover withstands on the shaft shoulder of axle, and the dimensional tolerance of mating holes is H7, and mating holes cooperates with axle; The dimensional tolerance of axle is k6, and seal cover had just formed labyrinth seal like this along with axle rotates together when this cooperation made water pump operation between boss and the seal groove; And because radial clearance is very little; Resistance is very big, and the lubricating grease in the bearing can not turn round and let out, and has so just stoped the leakage of lubricating grease.And seal cover can not damage yet, and do not need to change, and played the effect of putting things right once and for all, and greatly facilitates use.
Claims (3)
1. submersible motor with labyrinth seal seal cover; The connector cover, junction block, casing, upper bearing (metal), bearing gland, seal cover, the axle that comprise submersible motor; It is characterized in that: on seal cover, be processed with boss, seal groove, mating holes, mating surface; Lower surface at junction block also processes seal groove and boss; The boss of seal cover inserts in the seal groove of junction block, and the boss of junction block inserts the interior formation of the seal groove labyrinth seal structure of seal cover simultaneously, and the mating surface of seal cover withstands on the shaft shoulder of axle.
2. by the described a kind of submersible motor with labyrinth seal seal cover of claim 1, it is characterized in that: the seal groove width of seal cover is 10 mm, and the width of boss is 9 mm, and the degree of depth of the two is 12mm; The dimensional tolerance of mating holes is H7, and the dimensional tolerance of axle is k6.
3. by the described a kind of submersible motor with labyrinth seal seal cover of claim 1, it is characterized in that: the seal groove width of junction block is 10 mm, and the width of boss is 9 mm, and the degree of depth is 12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120507397 CN202405914U (en) | 2011-12-08 | 2011-12-08 | Novel submersible motor with labyrinth seal cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120507397 CN202405914U (en) | 2011-12-08 | 2011-12-08 | Novel submersible motor with labyrinth seal cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202405914U true CN202405914U (en) | 2012-08-29 |
Family
ID=46703531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120507397 Expired - Fee Related CN202405914U (en) | 2011-12-08 | 2011-12-08 | Novel submersible motor with labyrinth seal cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202405914U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426287A (en) * | 2013-09-04 | 2015-03-18 | 日本电产株式会社 | Motor |
| CN106357042A (en) * | 2016-09-12 | 2017-01-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Seal structure for installing outlet box and electric appliance with the same |
-
2011
- 2011-12-08 CN CN 201120507397 patent/CN202405914U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104426287A (en) * | 2013-09-04 | 2015-03-18 | 日本电产株式会社 | Motor |
| CN106357042A (en) * | 2016-09-12 | 2017-01-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Seal structure for installing outlet box and electric appliance with the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20121208 |