CN104270038A - Rheostat structure based on electro-hydraulic starter rheostat - Google Patents
Rheostat structure based on electro-hydraulic starter rheostat Download PDFInfo
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- CN104270038A CN104270038A CN201410515903.3A CN201410515903A CN104270038A CN 104270038 A CN104270038 A CN 104270038A CN 201410515903 A CN201410515903 A CN 201410515903A CN 104270038 A CN104270038 A CN 104270038A
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- water tank
- water
- tank
- rheostat
- electrode bar
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/163—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual reluctance motor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Adjustable Resistors (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The invention discloses a rheostat structure based on an electro-hydraulic starter rheostat. The rheostat structure comprises a water tank, three pairs of electrode bars inserted into the water tank and an electrode bar lifting structure capable of changing water resistance. A standby water tank, locating columns, a float, a magnetic material arranged on the float and a reed pipe are further included, the standby water tank is arranged adjacent to the water tank, the water tank and the adjacent water tank are separated only through a common plate, a water pump is arranged in the standby water tank, and the water pump can inject water of the standby water tank into the water tank through an inlet in the upper portion of the water tank. The locating columns are fixed in the water tank. The locating columns are sleeved with the float, and the float can vertically move along the water level. The reed pipe is arranged in a sealing pipe of the non-magnetic-conducting material. When the water level of the water tank is reduced, the reed pipe is triggered by the magnetic material to be closed, and the water pump works. A water tank cover is provided with holes allowing the electrode bars to be inserted, sealing rings and housings fixing the sealing rings on the inner face of the water tank cover, and the electrode bars are sleeved with the sealing rings. The rheostat structure has the advantages of reducing the temperature of the water tank, automatically adding water, preventing water losses, and prolonging the maintenance period.
Description
Technical field
The present invention relates to a kind of variable resistance structure based on electric liquid rheostatic starter, belong to electric machine soft starting field.
Background technology
Electricity liquid rheostatic starter is used for the starting of motor, and we know, during electric motor starting, starting current is very large, and the efficiency that big current now produces is very low, therefore, waste of energy is very large, and in order to solve this technical problem, one of common scheme is serial connection variable resistance, Limited Current, by variable resistance, progressively improves the rotating speed of motor, finally reach energy-conservation object, said variable resistance, normally use water as resistance, be inserted in water by electrode again, traveling electrode obtains variable resistance.In prior art, the water capacity in water tank easily heats up evaporation, along with water level decreasing, needs constantly to supplement to add water.
In prior art, the simplest water level instruction, is realized by external transparent water pipe, but the method, need in water tank bottom perforate, add the possibility of seepage, we know as this heavy current installation, and this is not preferred scheme, so, prior art does not establish water level to indicate, but in real product, has water level to indicate and be obviously better than not having water level to indicate.
The present invention arranges water level instruction when water tank not perforate.
As preferably, described electrode bar lifting structure comprises:
Screw rod, two ends are fixed in frame respectively by upper bearing (metal) and lower bearing;
Nut, coordinates with screw rod;
Insulating frame, fixes with nut;
Battery lead plate, fixes with in described often pair of electrode bar;
Another root in often pair of electrode bar, is fixed in frame by insulation board;
Guide rail, is provided with two, is fixed in frame, can guarantee that the two ends of insulating frame are moved on guide rail;
Belt pulley, is fixed on the top of screw rod, and belt pulley is through driving-belt and rack-mounted motor linkage, and electric machine rotation, drive bolt rotary, nut moves up and down, and drives in often pair of electrode bar one to move up and down.
In order to can to screw rod frame oil, described screw tip offers the oil pocket of splendid attire oil, screw rod top offers the oilhole be communicated with oil pocket, also comprise swing arm, one end and the screw rod of this swing arm are hinged, the other end is provided with sealing block, swing arm under gravity, naturally droop, sealing block can seal oilhole, and during bolt rotary, swing arm is opened oilhole under the influence of centrifugal force and drained the oil.In order to increase centrifugal force, screw rod can select fine thread, and rotating speed can improve.The effect of this technical scheme is, can produce intermittent oiling, and oiling can be synchronous with bolt rotary, simplified apparatus; reduce friction, particularly when Water in Water Tank evaporates serious, corrosion protection can also be implemented to screw rod; it should be noted that, in order to reduce costs, screw rod and nut select ferrous material.
In addition, the part that swing arm is relevant can select two covers, or only selects a set of.
The present invention has reduction water tank temperature, automatic watering, prevents current from losing, safeguards the beneficial effect that simple and convenient, maintenance period extends.
Summary of the invention
The present invention, according to above deficiency, providing a kind of variable resistance structure based on electric liquid rheostatic starter, can reduce the temperature of water tank by arranging buffer tank, to water tank automatic watering, can also be provided with the technical scheme preventing current from losing again simultaneously.
Technical scheme of the present invention is:
Based on a variable resistance structure for electric liquid rheostatic starter, comprising:
Water tank, as water resistance;
Three pairs of electrode bars, connect water resistance, can export three resistance values;
Electrode bar lifting structure, can control a movement in often pair of electrode bar simultaneously, thus changes water resistance;
Also comprise buffer tank, the adjacent water tank of this buffer tank is arranged, the built-in water pump of buffer tank, and the water of buffer tank can be injected water tank by the entrance of water tank upper by water pump.Only have a common plate to isolate between water tank and adjacent water tank, buffer tank and water tank are independently, only just can send water by water pump between the two.It should be noted that, both are merged, namely remove dividing plate and form large water tank, its effect is different, after water evaporation in large water tank, water level decreasing, can have influence on the stroke of electrode bar, and adopt the mode of buffer tank, although water also can evaporate, the water level in water tank can supplement, minimizing be the water of buffer tank, therefore, the stroke of electrode bar is not affected.
Only have a common plate to isolate between water tank and adjacent water tank, buffer tank can absorb the heat of water tank, reduces evaporation of water.To obtain preferably heat-transfer effect.Common plate preferably selects Heat Conduction Material, such as metallic plate or heat-conducting plastic etc.
In order to automatic control, also comprise:
Reference column, is provided with two, is fixed in water tank;
Buoy, is set on reference column, can move up and down with water level;
Magnetic material and tongue tube, magnetic material is arranged on described buoy, and tongue tube is arranged in the sealed tube of non-magnet material, sealed tube is fixed on the madial wall of described water tank, and tongue tube is connected in water pump circuit, when cistern water level declines, tongue tube is triggered closed by magnetic material, pump working.
Described tank lid is provided with the hole of inserting described electrode bar, the sealing ring be enclosed within outside electrode bar, sealing ring is fixed on the case of tank lid inner face.This technical scheme has three objects, first, anti-sealing evaporates from the gap, hole of electrode bar periphery, the second, to electrode bar location, the 3rd, when electrode bar is toward pull-up, water on electrode bar can be scraped and get back in water tank, anti-sealing is brought out, and has influence on the electrical property of other electrical equipment in Electric Appliance Cabinet after evaporation.It should be noted that, when the sealing effectiveness of sealing ring is fine, pore can be set out in tank lid, prevent water tank vacuum, affect the movement of electrode bar.
In order to sealing radiator further, the surrounding of described tank lid inner face is provided with projection, and correspondingly, tank top is provided with cavity, the sealing ring of the built-in band groove of this cavity, and projection inserts the groove of sealing ring, water tank and tank lid can be sealed.
In order to the impact between reducing mutually, as preferably, described water tank is divided into three ponds by two pieces of dividing plates, and the bottom of dividing plate has the water channel in connection three ponds.
The variable resistance structure of electricity liquid rheostatic starter is arranged in Electric Appliance Cabinet usually.
Three pairs of electrode bars are connected with three phase electric machine respectively, and during for pressure regulation, water resistance has pressure drop, and at the initial stage of electric motor starting, the pressure drop on water resistance is also higher, and simultaneously electric current is huge, and water can heat up, evaporation etc.
In order to understand water level conditions, the present invention also comprises flexible bar, and the slot of partial insertion tank lid inner face, an end points and buoy are fixed, and along with moving up and down of buoy, water level vertically can be changed convert level change to by flexible bar.Flexible bar, can select the good material of the toughness such as polypropylene, tank lid can select transparent material, and be close to tank lid due to flexible bar and move, vision does not affect by water smoke.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is the partial top view of Fig. 1.
Fig. 3 is the structural representation that the flexible bar of the present invention is relevant.
Fig. 4 is the structural representation that tank seal of the present invention is relevant.
Embodiment
Now the present invention is further illustrated by reference to the accompanying drawings:
As shown in the figure, water tank 11, as water resistance;
Three pairs of electrode bars 23, connect water resistance, can export three resistance values;
Electrode bar lifting structure, can control a movement in often pair of electrode bar 23 simultaneously, thus changes water resistance;
Also comprise buffer tank 13, the adjacent water tank 11 of this buffer tank 13 is arranged, only have a common plate to isolate between water tank 13 and adjacent water tank 11, the built-in water pump 56 of buffer tank 13, the water of buffer tank 13 can be injected water tank 13 by the entrance on water tank 13 top by water pump 56.
Also comprise:
Reference column 55, is provided with two, is fixed in water tank 11;
Buoy 54, is set on reference column 55, can moves up and down with water level;
Magnetic material 53 and tongue tube 52, magnetic material 53 is arranged on buoy 54, tongue tube 52 is arranged in the sealed tube 51 of non-magnet material, sealed tube 51 is fixed on the madial wall of described water tank 11, tongue tube 52 is connected in water pump 56 circuit, when water tank 11 water level decreasing, tongue tube 52 is triggered closed by magnetic material 53, and water pump 56 works.
Tank lid 14 is provided with the hole of inserting described electrode bar 23, the sealing ring 142 be enclosed within outside electrode bar 23, sealing ring 142 is fixed on the case 141 of tank lid 14 inner face.
The surrounding of tank lid 14 inner face is provided with projection 143, and correspondingly, water tank 11 top is provided with cavity, the sealing ring 111 of the built-in band groove of this cavity, and projection 143 inserts the groove of sealing ring 111, water tank 11 and tank lid 14 can be sealed.
Water tank 13 is divided into three ponds by two pieces of dividing plates 12, and the bottom of dividing plate 12 has the water channel in connection three ponds.
The present invention also comprises flexible bar 57, and slot 141, end points and the buoy 54 of partial insertion tank lid 14 inner face are fixed, and along with moving up and down of buoy 54, water level vertically can be changed convert level change to by flexible bar 57.
Electrode bar lifting structure comprises:
Screw rod 42, two ends are fixed in frame respectively by upper bearing (metal) 44 and lower bearing 46;
Nut 45, coordinates with screw rod 42;
Insulating frame 21, fixes with nut 45;
Battery lead plate 22, fixes with in described often pair of electrode bar 23;
Another root in often pair of electrode bar 23, is fixed in frame by insulation board;
Guide rail 31, is provided with two, is fixed in frame, can guarantee that the two ends of insulating frame 21 are moved on guide rail 31;
Belt pulley 41, is fixed on the top of screw rod 42, and belt pulley 41 is through driving-belt and rack-mounted motor linkage, and electric machine rotation, drive screw rod 42 to rotate, nut 45 moves up and down, and drives in often pair of electrode bar 23 one to move up and down.
Screw rod 42 top offers the oil pocket 43 of splendid attire oil, screw rod 42 top offers the oilhole 45 be communicated with oil pocket 43, also comprise symmetrically arranged two swing arms 46, one end and the screw rod 42 of this swing arm 46 are hinged, the other end is provided with sealing block, swing arm 46 under gravity, naturally droops, and sealing block can seal oilhole 45, when screw rod 42 rotates, swing arm 46 is opened oilhole 45 under the influence of centrifugal force and is drained the oil.This oil pocket 43 also directly can connect oil can.When oilhole 45 is drained the oil, as long as can oil seepage.
Claims (5)
1., based on a variable resistance structure for electric liquid rheostatic starter, comprising:
Water tank (11), as water resistance;
Three pairs of electrode bars (23), connect water resistance, can export three resistance values;
Electrode bar lifting structure, can control a movement in often pair of electrode bar (23) simultaneously, thus changes water resistance;
It is characterized in that, also comprise buffer tank (13), this buffer tank (13) adjacent water tank (11) is arranged, a common plate is only had to isolate between water tank (13) and adjacent water tank (11), buffer tank (13) built-in water pump (56), the water of buffer tank (13) can be injected water tank (13) by the entrance on water tank (13) top by water pump (56).
2. a kind of variable resistance structure based on electric liquid rheostatic starter as claimed in claim 1, is characterized in that, also comprise:
Reference column (55), is provided with two, is fixed in water tank (11);
Buoy (54), is set on reference column (55), can moves up and down with water level;
Magnetic material (53) and tongue tube (52), magnetic material (53) is arranged on buoy (54), tongue tube (52) is arranged in the sealed tube (51) of non-magnet material, sealed tube (51) is fixed on the madial wall of described water tank (11), tongue tube (52) is connected in described water pump (56) circuit, when water tank (11) water level decreasing, tongue tube (52) is triggered closed by magnetic material (53), water pump (56) works.
3. a kind of variable resistance structure based on electric liquid rheostatic starter as claimed in claim 1 or 2, it is characterized in that, described tank lid (14) is provided with the hole of inserting described electrode bar (23), the case (141) being enclosed within electrode bar (23) sealing ring outward (142), sealing ring (142) being fixed on tank lid (14) inner face.
4. a kind of variable resistance structure based on electric liquid rheostatic starter as claimed in claim 1 or 2, it is characterized in that, the surrounding of tank lid (14) inner face of described water tank (13) is provided with projection (143), correspondingly, water tank (11) top is provided with cavity, the sealing ring (111) of the built-in band groove of this cavity, projection (143) inserts the groove of sealing ring (111), water tank (11) and tank lid (14) can be sealed.
5. a kind of variable resistance structure based on electric liquid rheostatic starter as claimed in claim 1 or 2, it is characterized in that, described water tank (13) is divided into three ponds by two pieces of dividing plates (12), and the bottom of dividing plate (12) has the water channel in connection three ponds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410515903.3A CN104270038B (en) | 2014-09-29 | 2014-09-29 | Variable resistance structure based on electro-hydraulic starting rheostat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410515903.3A CN104270038B (en) | 2014-09-29 | 2014-09-29 | Variable resistance structure based on electro-hydraulic starting rheostat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104270038A true CN104270038A (en) | 2015-01-07 |
| CN104270038B CN104270038B (en) | 2017-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410515903.3A Active CN104270038B (en) | 2014-09-29 | 2014-09-29 | Variable resistance structure based on electro-hydraulic starting rheostat |
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| CN (1) | CN104270038B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712836A (en) * | 2018-05-29 | 2018-10-26 | 常康华 | A kind of electro-hydraulic starting rheostat |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002354856A (en) * | 2001-05-25 | 2002-12-06 | Meidensha Corp | Starter for wound-rotor type motor |
| CN201233780Y (en) * | 2008-08-05 | 2009-05-06 | 上海追日电气有限公司 | Automatic water feeding device for high voltage liquid resistor |
| CN201682448U (en) * | 2009-12-25 | 2010-12-22 | 湖北万洲电气集团有限公司 | Full-closed liquid resistance starter |
| CN202143019U (en) * | 2011-03-21 | 2012-02-08 | 大禹电气科技股份有限公司 | Water resistance starting and speed regulating device for liquid-level-adjustable wound rotor type motor |
| CN104038110A (en) * | 2014-04-29 | 2014-09-10 | 江苏大恒环保电气科技股份有限公司 | Fluidic resistor device used for high-voltage fluidic resistor soft start cabinet |
| CN204103808U (en) * | 2014-09-29 | 2015-01-14 | 安吉县天宝电控设备有限公司 | Based on the variable resistance structure of electric liquid rheostatic starter |
-
2014
- 2014-09-29 CN CN201410515903.3A patent/CN104270038B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002354856A (en) * | 2001-05-25 | 2002-12-06 | Meidensha Corp | Starter for wound-rotor type motor |
| CN201233780Y (en) * | 2008-08-05 | 2009-05-06 | 上海追日电气有限公司 | Automatic water feeding device for high voltage liquid resistor |
| CN201682448U (en) * | 2009-12-25 | 2010-12-22 | 湖北万洲电气集团有限公司 | Full-closed liquid resistance starter |
| CN202143019U (en) * | 2011-03-21 | 2012-02-08 | 大禹电气科技股份有限公司 | Water resistance starting and speed regulating device for liquid-level-adjustable wound rotor type motor |
| CN104038110A (en) * | 2014-04-29 | 2014-09-10 | 江苏大恒环保电气科技股份有限公司 | Fluidic resistor device used for high-voltage fluidic resistor soft start cabinet |
| CN204103808U (en) * | 2014-09-29 | 2015-01-14 | 安吉县天宝电控设备有限公司 | Based on the variable resistance structure of electric liquid rheostatic starter |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712836A (en) * | 2018-05-29 | 2018-10-26 | 常康华 | A kind of electro-hydraulic starting rheostat |
| CN108712836B (en) * | 2018-05-29 | 2020-04-17 | 邹海娟 | Electrohydraulic rheostatic starter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104270038B (en) | 2017-06-16 |
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| PB01 | Publication | ||
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Effective date of registration: 20180612 Address after: 226500 Rugao City, Nantong City, Jiangsu Province, moving through the eleven groups. Patentee after: Nantong man Wei Wei Electric Co., Ltd. Address before: 313302 Anji County, Huzhou City, Zhejiang Province, Tian Huang Ping Town Patentee before: ANJI COUNTY TIANBAO ELECTRIC CONTROL EQUIPMENT CO., LTD. |