CN202678209U - Adjustable oil flow relay for transformer cooler - Google Patents
Adjustable oil flow relay for transformer cooler Download PDFInfo
- Publication number
- CN202678209U CN202678209U CN 201220226901 CN201220226901U CN202678209U CN 202678209 U CN202678209 U CN 202678209U CN 201220226901 CN201220226901 CN 201220226901 CN 201220226901 U CN201220226901 U CN 201220226901U CN 202678209 U CN202678209 U CN 202678209U
- Authority
- CN
- China
- Prior art keywords
- oil flow
- rotating shaft
- turbine
- flow relay
- adjustable oil
- 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 - Lifetime
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- Transformer Cooling (AREA)
Abstract
The utility model relates to an adjustable oil flow relay for a transformer cooler which is adjustable at any moment, has the characteristics of convenient operation and low adjusting costs and is safe and reliable. The adjustable oil flow relay comprises a housing, a dial, a pointer, a pointer shaft, a cam, a microswitch, a baffle plate, a rotating shaft, a coupling magnetic cylinder, return springs and an adjusting disc and also comprises a s turbine and a worm; the turbine is arranged on the rotating shaft; one end of the worm extends out of the housing; inner ends of the return springs are fixed to the rotating shaft and outer ends are fixed to the lower part of the turbine.
Description
Technical field
The utility model relates to a kind of adjustable oil flow relay of transformer cooler that monitors the oil pump ruuning situation of oil-immersed type transformer cooler.
Background technology
Oil flow relay is mounted on the oil pipe line of cooling device for transformer, is used for the measuring and protecting device whether the turning to of observational measurement cooler oil pump, flow and pipe valve open.Oil flow relay can monitor the oil pump ruuning situation of oil-immersed type transformer cooler, can also monitor whether pipeline has the situations such as unimpeded, that whether valve is opened, and when oily flow reached action flow or flow and is reduced to certain numerical value, flow indicator can send signal.Existing oil flow relay comprises housing, dial plate, pointer, needle pivot, cam, sensitive switch, plate washer, rotating shaft, coupling magnetic cylinder, back-moving spring and adjustment plate.Its operation principle is: behind the transformer Cooling pump startup, when oily flow reaches the action flow, oil stream promotes plate washer and drives the rotating shaft rotation, coupling by coupling magnetic cylinder is rotated pointer synchronously, the purpose that reaches the oily circulation regular event of demonstration or stop, the while is exportable action or stop signal also.When the cam pressing sensitive switch on the needle pivot, send the normal operation signal, pointer indication " flowing " position; When oily flow was reduced to less than the action flow, plate washer is counter-rotation under the effect of back-moving spring, and sensitive switch is in normally opened contact to be opened, the closed concurrent signal that is out of order of normally-closed contact, pointer indication " stopping " position.The technical problem of its existence is: 1, the action flow of oil flow relay is set by adjustment plate under standard ambient temperature, when transformer moves, the working temperature of oil flow relay changes, can cause oil flow relay pointer shake or not in place, defeated signal occur thereupon repeatedly switch or do not send the signal phenomenon.If the degree of tightness of regulating spring makes the oil flow relay normal operation, just transformer must be had a power failure, the oil in the oil pump is emitted, oil flow relay is pulled down from pipeline, rotate adjustment plate and adjust, very trouble is adjusted the cost height; 2, the action flow of adjustment oil flow relay is classification, can not realize electrodeless adjustment; 3, oil flow relay can not be realized online adjustment, affects the transformer normal operation, inconvenient operation.
The utility model content
The utility model is exactly for the problems referred to above, provide a kind of and can adjust at any time, easy to operate, safe and reliable, adjust the adjustable oil flow relay of the low transformer cooler of cost.
For achieving the above object, the utility model adopts following scheme, the utility model comprises housing, dial plate, pointer, needle pivot, cam, sensitive switch, plate washer, rotating shaft, coupling magnetic cylinder, back-moving spring and adjustment plate, its structural feature is also to comprise turbine and worm screw, turbine is arranged in the rotating shaft, worm screw one end stretches out outside, and back-moving spring is inner to be fixed with rotating shaft, and its outer end and turbine bottom are fixed.
The utility model beneficial effect
The utility model is realized adjusting at any time function by turbine, worm screw and back-moving spring, has the following advantages:
1, regulate the degree of tightness of back-moving spring by worm gear structure, can realize oil flow relay action flow is carried out on-line control, needn't carry out dismounting because of adjustment, easy to operate, cost is low;
2. utilize the auto-lock function of worm gear structure, the spring after the adjusting is not rebounded, the action flow after guaranteeing to adjust stable stopped to pay no attention to the false alarm that causes because of oil flow as flow, and be safe and reliable.
3. the employing worm gear structure can be realized oil flow relay action flow is carried out electrodeless adjustment, guarantees that oil flow relay action flow is in optimum state, meets the national grid construction to the reliability requirement of oil flow relay action flow.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
The utility model comprises housing 7, dial plate 2, pointer 1, needle pivot 4, cam 3, sensitive switch 5, plate washer 13, rotating shaft 14, coupling magnetic cylinder 6, back-moving spring 10 and adjustment plate 12, also comprise turbine 9 and worm screw 8, turbine 9 is arranged in the rotating shaft 14, worm screw 8 one ends stretch out housing 7 outsides, back-moving spring 10 is inner fixing with rotating shaft 14, and its outer end and turbine 9 bottoms are fixed.Adjustment plate 12 is fixedly connected with housing 7, and adjustment plate 12 middle parts are provided with boss 11, has increased the stationarity of rotating shaft 14 rotations.
During use, stretch out the worm screw 8 of housing 7 outsides by rotation, turbine 9 drives back-moving spring 10 and rotates; regulate the degree of tightness of back-moving spring 10; thereby realize regulating oil flow and make flow, use the utility model reliably to monitor the cooler oil pump, thereby the protection transformer normally moves.
Claims (2)
1. adjustable oil flow relay of transformer cooler, comprise housing, dial plate, pointer, needle pivot, cam, sensitive switch, plate washer, rotating shaft, coupling magnetic cylinder, back-moving spring and adjustment plate, characterized by further comprising turbine and worm screw, turbine is arranged in the rotating shaft, worm screw one end stretches out outside, back-moving spring is inner to be fixed with rotating shaft, and its outer end and turbine bottom are fixed.
2. the adjustable oil flow relay of transformer cooler as claimed in claim 1 is characterized in that described adjustment plate is fixedly connected with housing, and the adjustment plate middle part is provided with boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220226901 CN202678209U (en) | 2012-05-21 | 2012-05-21 | Adjustable oil flow relay for transformer cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220226901 CN202678209U (en) | 2012-05-21 | 2012-05-21 | Adjustable oil flow relay for transformer cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202678209U true CN202678209U (en) | 2013-01-16 |
Family
ID=47499093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220226901 Expired - Lifetime CN202678209U (en) | 2012-05-21 | 2012-05-21 | Adjustable oil flow relay for transformer cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202678209U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566448A (en) * | 2019-07-22 | 2019-12-13 | 浙江亚特电器有限公司 | oil quantity adjustable oil pump structure for chain saw and chain saw |
| CN111145982A (en) * | 2018-11-02 | 2020-05-12 | 中车大同电力机车有限公司 | Oil-immersed reactor and locomotive with same |
-
2012
- 2012-05-21 CN CN 201220226901 patent/CN202678209U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111145982A (en) * | 2018-11-02 | 2020-05-12 | 中车大同电力机车有限公司 | Oil-immersed reactor and locomotive with same |
| CN110566448A (en) * | 2019-07-22 | 2019-12-13 | 浙江亚特电器有限公司 | oil quantity adjustable oil pump structure for chain saw and chain saw |
| CN110566448B (en) * | 2019-07-22 | 2024-05-07 | 浙江亚特电器股份有限公司 | Oil pump structure with adjustable oil quantity for chain saw and chain saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |