CN104270038B - Variable resistance structure based on electro-hydraulic starting rheostat - Google Patents
Variable resistance structure based on electro-hydraulic starting rheostat Download PDFInfo
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- CN104270038B CN104270038B CN201410515903.3A CN201410515903A CN104270038B CN 104270038 B CN104270038 B CN 104270038B CN 201410515903 A CN201410515903 A CN 201410515903A CN 104270038 B CN104270038 B CN 104270038B
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- water
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- water tank
- electrode bar
- buoy
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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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- Power Engineering (AREA)
- Adjustable Resistors (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The invention discloses a kind of variable resistance structure based on electro-hydraulic starting rheostat, including：Water tank；Insert three pairs of electrode bars of water tank；The electrode bar lifting structure of water resistance can be changed；Also include buffer tank, the adjacent water tank of the buffer tank is set, only have common plate isolation between water tank and adjacent water tank, the water of buffer tank can be injected water tank by the built-in water pump of buffer tank, water pump by the entrance of water tank upper.Locating dowel, is fixed in water tank；Buoy, is set in locating dowel, can be moved up and down with water level；Magnetic material on buoy, the tongue tube in the seal pipe of non-magnet material, when cistern water level declines, tongue tube is triggered by magnetic material and closed, pump working.The case that tank lid is provided with the hole for inserting the electrode bar, the sealing ring being enclosed within outside electrode bar, sealing ring is fixed on tank lid inner face.The present invention has to be reduced water tank temperature, automatic watering, prevents the beneficial effect that current lose, maintenance period extends.
Description
Technical field
The present invention relates to a kind of variable resistance structure based on electro-hydraulic starting rheostat, category electric machine soft starting field.
Background technology
Electro-hydraulic starting rheostat is used for the starting of motor, it is known that during electric motor starting, starting current is very big, now
The efficiency that high current is produced is very low, therefore, waste of energy is very big, is string to solve one of the technical problem, common scheme
Variable resistance is connect, electric current is limited, by variable resistance, the rotating speed of motor is stepped up, the purpose of energy-conservation is finally reached, described variable resistance is led to
It is often to be inserted into water as resistance, then by electrode with water, traveling electrode obtains variable resistance.In the prior art, water tank
The interior water capacity easily heats up evaporation, as water level decreasing adds water, it is necessary to be continuously replenished.
The content of the invention
The present invention is not enough according to more than, there is provided a kind of variable resistance structure based on electro-hydraulic starting rheostat, standby by setting
The temperature of water tank can be reduced with water tank, again can be to water tank automatic watering, while being also provided with the technical scheme for preventing current from losing.
The technical scheme is that：
A kind of variable resistance structure based on electro-hydraulic starting rheostat, including：
Water tank, as water resistance；
Three pairs of electrode bars, connect water resistance, can export three resistance values；
Electrode bar lifting structure, can simultaneously control a movement in each pair electrode bar, so as to change water resistance；
Also include buffer tank, the adjacent water tank of the buffer tank is set, and the built-in water pump of buffer tank, water pump can be by standby water
The water of case injects water tank by the entrance of water tank upper.Only have common plate isolation between buffer tank and adjacent water tank, it is standby
Water tank and water tank are independent, are only capable of just sending water by water pump between the two.It should be noted that both are merged, that is, tear open
Except dividing plate forms large water tank, its effect is different, and after the water evaporation in large water tank, water level decreasing influences whether electrode bar
Stroke, and by the way of buffer tank, although water can also evaporate, but water level in water tank can be supplement, reduction
It is the water of buffer tank, therefore, the stroke of electrode bar is not influenceed.
Only has common plate isolation between water tank and adjacent water tank, buffer tank can absorb the heat of water tank, reduce water
Evaporation.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 automatically control, also include：
Locating dowel, is provided with two, is fixed in water tank；
Buoy, is set in locating dowel, can be moved up and down with water level；
Magnetic material and tongue tube, magnetic material are arranged on the buoy, and tongue tube is arranged on the close of non-magnet material
In tube sealing, seal pipe is fixed on the madial wall of the water tank, and tongue tube is connected in water pump circuit, when cistern water level declines,
Tongue tube is triggered by magnetic material and closed, pump working.
The tank lid is provided with the hole for inserting the electrode bar, the sealing ring being enclosed within outside electrode bar, fixes sealing ring
In the case of tank lid inner face.The technical scheme has three purposes, and first, prevent water from being evaporated from the slit gap on electrode bar periphery,
Second, electrode bar is positioned, the 3rd, when electrode bar is toward pull-up, the water on electrode bar can be scraped and returned in water tank, prevent water
It is brought out, the electrical property of other electrical equipment Electric Appliance Cabinet Nei is had influence on after evaporation.It should be noted that when the sealing effectiveness of sealing ring
When very well, venthole can be opened up in tank lid, prevent water tank vacuum, influence the movement of electrode bar.
In order to further sealing radiator, the surrounding of the tank lid inner face are provided with projection, correspondingly, tank top sets
Cavity is equipped with, the built-in sealing ring with groove of the cavity, projection inserts the groove of sealing ring, water tank and tank lid can be sealed.
In order to reduce influence from each other, preferably, the water tank is divided into three ponds, dividing plate by two pieces of dividing plates
Bottom have connection three water channels in pond.
The variable resistance structure of electro-hydraulic starting rheostat is typically mounted in Electric Appliance Cabinet.
Three pairs of electrode bars are connected with three phase electric machine respectively, and during for pressure regulation, water resistance has a pressure drop, the initial stage of electric motor starting,
Pressure drop on water resistance is also higher, while electric current is huge, water can be heated up, evaporated.
In order to understand water level conditions, present invention additionally comprises flexible bar, the slot of partial insertion tank lid inner face,
End points is fixed with buoy, with moving up and down for buoy, can vertically be changed water level by flexible bar and is converted into level change
Change.Flexible bar, can select the preferable materials of toughness such as polypropylene, and tank lid can select transparent material, because flexibility is indicated
Bar is close to tank lid movement, and vision is not influenceed by water smoke.
In the prior art, simplest water level is indicated, and is realized by external transparent water pipe, but the method is, it is necessary in water tank
Bottom opening, increased the possibility of seepage, it is understood that as this heavy current installation, this is not preferred scheme, so, existing skill
Art does not set water level instruction, but in real product, has water level to indicate to be clearly superior to what no water level was indicated.
The present invention is exactly to set water level in the case of water tank not perforate to indicate.
Preferably, the electrode bar lifting structure includes：
Screw rod, two ends are fixed in frame by upper bearing (metal) and lower bearing respectively；
Nut, coordinates with screw rod；
Insulating frame, fixes with nut；
A fixation in battery lead plate, with each pair electrode bar；
Another in each pair electrode bar, it is fixed in frame by insulation board；
Guide rail, is provided with two, is fixed in frame, can ensure 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 turns through transmission belt and rack-mounted motor linkage, motor
It is dynamic, drive screw rod to rotate, nut is moved up and down, and drives one in each pair electrode bar to move up and down.
In order to be able to screw rod frame oil, the screw tip offers the oil pocket for containing oil, and screw rod top offers and oil pocket
The oilhole of connection, also including swing arm, with screw rod is hinged, the other end is provided with sealing block, swing arm exists for one end of the swing arm
In the presence of gravity, naturally droop, sealing block can seal oilhole, and when screw rod is rotated, swing arm is opened under the influence of centrifugal force
Oilhole is drained the oil.In order to increase centrifugal force, screw rod can select fine thread, and rotating speed can be improved.The effect of the technical scheme is to produce
Raw intermittent oiling, oiling can be synchronous with screw rod rotation, simplifies equipment, friction is reduced, particularly in the feelings that water tank water evaporation is serious
Under condition, moreover it is possible to which, to screw rod implementation corrosion protection, it is necessary to explanation is, for reduces cost, screw rod and nut select ferrous material.
In addition, the related part of swing arm can select two sets, or only select a set of.
The present invention has to be reduced water tank temperature, automatic watering, prevents current from losing, safeguards that simple and convenient, maintenance period extends
Beneficial effect.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is the partial top view of Fig. 1.
Fig. 3 is the related structural representation of flexibility bar of the invention.
Fig. 4 is the related structural representation of tank seal of the present invention.
Specific embodiment
In conjunction with accompanying drawing, the present invention is further illustrated：
As illustrated, 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 simultaneously control a movement in each pair electrode bar 23, so as to change water resistance；
Also include buffer tank 13, the adjacent water tank 11 of the buffer tank 13 sets, buffer tank 13 and adjacent water tank 11
Between only a common plate isolation, the built-in water pump 56 of buffer tank 13, water pump 56 can by the water of buffer tank 13 pass through water tank 13
The entrance injection water tank 11 on top.
Also include：
Locating dowel 55, is provided with two, is fixed in water tank 11；
Buoy 54, is set in locating dowel 55, can be moved up and down with water level；
Magnetic material 53 and tongue tube 52, magnetic material 53 are arranged on buoy 54, and tongue tube 52 is arranged on non-magnetic material
In the seal pipe 51 of material, seal pipe 51 is fixed on the madial wall of the water tank 11, and tongue tube 52 is connected in the circuit of water pump 56, when
During 11 water level decreasing of water tank, tongue tube 52 triggers closure by magnetic material 53, and water pump 56 works.
Tank lid 14 is provided with the hole for inserting the electrode bar 23, the sealing ring 142 being enclosed within outside electrode bar 23, by sealing ring
142 cases 140 for being fixed on the inner face of tank lid 14.
The surrounding of the inner face of tank lid 14 is provided with projection 143, and correspondingly, the top of water tank 11 is provided with cavity, in the cavity
Sealing ring with groove 111 is put, projection 143 inserts the groove of sealing ring 111, water tank 11 can be sealed with tank lid 14.
Water tank 13 is divided into three ponds by two pieces of dividing plates 12, and the bottom of dividing plate 12 has three water channels in pond of connection.
Present invention additionally comprises flexible bar 57, slot 141, end points and a buoy of the inner face of partial insertion tank lid 14
54 fix, and with moving up and down for buoy 54, can vertically change water level by flexible bar 57 and be converted into level change.
Electrode bar lifting structure includes：
Screw rod 42, two ends are fixed in frame by upper bearing (metal) 44 and lower bearing 46 respectively；
Nut 45, coordinates with screw rod 42；
Insulating frame 21, fixes with nut 45；
A fixation in battery lead plate 22, with each pair electrode bar 23；
Another in each pair electrode bar 23, it is fixed in frame by insulation board；
Guide rail 31, is provided with two, is fixed in frame, can ensure 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, belt pulley 41 through transmission belt and rack-mounted motor linkage,
Motor is rotated, and drives screw rod 42 to rotate, and nut 45 is moved up and down, and drives one in each pair electrode bar 23 to move up and down.
The top of screw rod 42 offers the oil pocket 43 for containing oil, and the top of screw rod 42 offers the oilhole 45 connected with oil pocket 43,
Also include symmetrically arranged two swing arms 46, one end of the swing arm 46 with screw rod 42 is hinged, the other end is provided with sealing block,
Swing arm 46 under gravity, is naturally drooped, and sealing block can seal oilhole 45, when screw rod 42 is rotated, swing arm 46 from
Oilhole 45 is opened in the presence of mental and physical efforts to drain the oil.The oil pocket 43 can also be directly connected to oil can.When oilhole 45 is drained the oil, as long as can oil seepage
.
Claims (1)
1. a kind of variable resistance structure based on electro-hydraulic starting rheostat, including：
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 simultaneously control a movement in each pair electrode bar (23), so as to change water resistance；
It is characterized in that, also including buffer tank (13), the adjacent water tank (11) of the buffer tank (13) is set, buffer tank (13) with
Only have a common plate between adjacent water tank (11) to isolate, buffer tank (13) built-in water pump (56), water pump (56) energy will be standby
The water of water tank (13) injects water tank (11) by the entrance on water tank (11) top；
The surrounding of tank lid (14) inner face of the water tank (11) is provided with projection (143), and correspondingly, water tank (11) top is set
There is cavity, the built-in sealing ring (111) with groove of the cavity, the groove of projection (143) insertion sealing ring (111) can be by water tank
(11) sealed with tank lid (14)；
Also include：
Locating dowel (55), is provided with two, is fixed in water tank (11)；
Buoy (54), is set in locating dowel (55), can be moved up and down with water level；
Magnetic material (53) and tongue tube (52), on buoy (54), tongue tube (52) is installed in non-for magnetic material (53)
In the seal pipe (51) of permeability magnetic material, seal pipe (51) is fixed on the madial wall of the water tank (11), and tongue tube (52) is connected on
In water pump (56) circuit, when water tank (11) water level decreasing, tongue tube (52) is triggered by magnetic material (53) and closed, water pump
(56) work；
Also include flexible bar (57), the slot (141) of partial insertion tank lid (14) inner face, an end points and buoy (54)
It is fixed, with moving up and down for buoy (54), water level can vertically be changed by flexible bar (57) and be converted into level change；
The tank lid (14) be provided with insert the electrode bar (23) hole, be enclosed within the outer sealing ring (142) of electrode bar (23),
Sealing ring (142) is fixed on the case (140) of tank lid (14) inner face；
The water tank (11) is divided into three ponds by two pieces of dividing plates (12), and the bottom of dividing plate (12) has three ponds of connection
Water channel.
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 CN104270038A (en) | 2015-01-07 |
| CN104270038B true 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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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108712836B (en) * | 2018-05-29 | 2020-04-17 | 邹海娟 | Electrohydraulic rheostatic starter |
Citations (5)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2014
- 2014-09-29 CN CN201410515903.3A patent/CN104270038B/en active Active
Patent Citations (5)
| 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 |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN104270038A (en) | 2015-01-07 |
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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. |