CN2186810Y - Transformer oil pump - Google Patents
Transformer oil pump Download PDFInfo
- Publication number
- CN2186810Y CN2186810Y CN 93229949 CN93229949U CN2186810Y CN 2186810 Y CN2186810 Y CN 2186810Y CN 93229949 CN93229949 CN 93229949 CN 93229949 U CN93229949 U CN 93229949U CN 2186810 Y CN2186810 Y CN 2186810Y
- Authority
- CN
- China
- Prior art keywords
- casing
- flange
- impeller
- vane
- transformers
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a pump, particularly a transformer oil pump, which is a dedicated oil pump for conveying insulating oil and is suitable for the forced oil circulation cooling of large-sized power transformers, furnace transformers, electric locomotive transformers and other transformers for specific use. The utility model comprises a fixed flange, a movable flange, a vane, a motor stator, a motor rotor, a spiral casing, a rotation shaft, a casing, etc., wherein, double-flange structure is adopted to ensure that the movable flange can rotate arbitrarily to be concentric with connection pipelines, so the installation is easy. In addition, a vane throat opening bearing is added to make a vane shaft turn into double supporting points structure, so that swinging movement in the rotation of the vane is reduced, stability is enhanced, mechanical corrosion at the throat opening part is eliminated, safe operation of the transformer is ensured, and simultaneously, noise is lowered, and advanced in lengthening life of machine.
Description
The utility model belongs to the pump class, and particularly a kind of transformer oil pump is applicable to the forced oil-circulation cooling of large-scale power transformer, furnace transformer, electric locomotive transformer and other dedicated transformer, is the special-purpose oil pump of carrying insulating oil.
At present, the oil pump structure that the high-power transformer oil cooling system is used, its oil inlet and outlet flange are dead the connection, because the deviation that connecting pipeline is made, versatility is poor, is difficult to align mutually, and difficulty is installed.The inherent impeller of existing in addition oil pump is a cantilever structure, and less stable causes the front end damage of bearings easily, reduces working life, causes grinding easily at the aditus laryngis place simultaneously, forms the abrasive metal powder and sneaks in the insulating oil, seriously jeopardizes the transformer safe operation.
In view of this, the purpose of this utility model is to overcome above-mentioned prior art defective, and a kind of easy for installation, noise is low, the life-span is long, safe and reliable to operation transformer oil pump is provided.
The purpose of this utility model realizes by following technical measures: transformer oil pump is by fastening flange, loose flange, impeller, motor stator, rotor, spiral case, rotating shaft, compositions such as casing, wherein, filler opening fastening flange and casing welding, the fastening flange upper-end surface is a sealing surface, loose flange and fastening flange are slidingly matched, impeller aditus laryngis bearing insert is in the casing upper end, the impeller upper end is placed in the impeller aditus laryngis bearing, impeller is set in the rotating shaft by tightening nut, rotating shaft is coaxial with rotor, and the rotor spindle nose falls within the lower bearing, and is fixed on the casing lower curtate, every flange apparatus on casing, pump chamber and motor stator are separated, and spiral case is welded in casing one side, the sealing pump housing one side, opposite side is an oil outlet, oil outlet and casing welding.
The utility model is owing to adopt two cover flange arrangements, and loose flange can rotate arbitrarily, can guarantee with connecting pipeline concentric, thereby easy for installation.In addition, increase impeller aditus laryngis bearing, make impeller shaft become two fulcrum structures, reduce the swing in the impeller operation, improved stability, eliminated the mechanical wear at aditus laryngis position, guaranteed that transformer moves safely and reliably, reduced noise simultaneously, helped the prolonged mechanical life-span.
In conjunction with the accompanying drawings concrete structure of the present utility model is described further.
Fig. 1 is a structural representation of the present utility model.
Fig. 1 is embodiment of the present utility model.
With reference to Fig. 1, transformer oil pump is by fastening flange 1, loose flange 2, impeller 5, motor stator 10, rotor 9, spiral case 6, rotating shaft 8, casing 12 compositions such as grade, wherein filler opening fastening flange 1 welds with casing 12, fastening flange 1 upper-end surface is a sealing surface, loose flange 2 is slidingly matched with fastening flange 1, impeller aditus laryngis bearing 3 inserts are in the upper end of casing 12, impeller 5 is placed in the impeller aditus laryngis bearing 3, impeller 5 is installed in the rotating shaft 8 by tightening nut 4, rotating shaft 8 is coaxial with rotor 9, the spindle nose of rotor 9 falls within the lower bearing 11, and lower bearing 11 is fixed in the bearing bracket 13 of casing 12 bottoms, installs on casing 12 every flange 7, pump chamber and motor stator 10 are separated, spiral case 6 is welded in a side of casing 12, and opposite side is an oil outlet 14, oil outlet 14 and casing 12 welding.
Claims (1)
1, transformer oil pump, by fastening flange, loose flange, impeller, motor stator, rotor, spiral case, rotating shaft, compositions such as casing, it is characterized in that the welding of filler opening fastening flange and casing, the fastening flange upper-end surface is a sealing surface, loose flange and fastening flange are slidingly matched, impeller aditus laryngis bearing insert is in the upper end of casing, impeller set places in the impeller aditus laryngis bearing, impeller is installed in the rotating shaft by tightening nut, rotating shaft is coaxial with rotor, the spindle nose of rotor falls within the lower bearing, and lower bearing is fixed in the bearing bracket of bottom of shell, every flange apparatus on casing, pump chamber and motor stator are separated, spiral case is welded in a side of casing, and opposite side is an oil outlet, oil outlet and casing welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93229949 CN2186810Y (en) | 1993-12-17 | 1993-12-17 | Transformer oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93229949 CN2186810Y (en) | 1993-12-17 | 1993-12-17 | Transformer oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2186810Y true CN2186810Y (en) | 1995-01-04 |
Family
ID=33806712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93229949 Expired - Fee Related CN2186810Y (en) | 1993-12-17 | 1993-12-17 | Transformer oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2186810Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328514C (en) * | 2004-08-26 | 2007-07-25 | 三门尔格科技有限公司 | Whole sealing oil pump for transformer |
-
1993
- 1993-12-17 CN CN 93229949 patent/CN2186810Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328514C (en) * | 2004-08-26 | 2007-07-25 | 三门尔格科技有限公司 | Whole sealing oil pump for transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |