CN104270037A - Rheostat structure of electrical-hydraulic rheostat starter - Google Patents

Rheostat structure of electrical-hydraulic rheostat starter Download PDF

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Publication number
CN104270037A
CN104270037A CN201410515950.8A CN201410515950A CN104270037A CN 104270037 A CN104270037 A CN 104270037A CN 201410515950 A CN201410515950 A CN 201410515950A CN 104270037 A CN104270037 A CN 104270037A
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CN
China
Prior art keywords
water tank
water
tank
rheostat
electrode bar
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Granted
Application number
CN201410515950.8A
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Chinese (zh)
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CN104270037B (en
Inventor
江永
江加宝
章春全
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Nantong man Wei Wei Electric Co., Ltd.
Original Assignee
ANJI COUNTY TIANBAO ELECTRIC CONTROL EQUIPMENT Co Ltd
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Application filed by ANJI COUNTY TIANBAO ELECTRIC CONTROL EQUIPMENT Co Ltd filed Critical ANJI COUNTY TIANBAO ELECTRIC CONTROL EQUIPMENT Co Ltd
Priority to CN201410515950.8A priority Critical patent/CN104270037B/en
Publication of CN104270037A publication Critical patent/CN104270037A/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/02Details of starting control
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01CRESISTORS
    • H01C10/00Adjustable resistors
    • H01C10/02Liquid resistors

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Adjustable Resistors (AREA)

Abstract

The invention discloses a rheostat structure of an electrical-hydraulic rheostat starter. The rheostat structure comprises a water tank, three pairs of electrode bars and an electrode bar lifting structure. The rheostat structure further comprises two locating columns, a buoy and a flexible indication strip, wherein the locating columns are fixed into the water tank; the buoy is arranged on one locating column in a sleeving mode and can move vertically along with the water level; the flexible indication strip is partly inserted in a slot formed in the inner surface of a water tank cover, one end of the flexible indication strip is fixed to the buoy, the flexible indication strip moves vertically along with the buoy, and vertical change of the water level can be converted into horizontal change through the flexible indication strip. The water tank cover is provided with holes which the electrode bars are inserted in, seal rings arranged outside the electrode bars in a sleeving mode and a housing used for fixing the seal rings to the inner surface of the water tank cover. The rheostat structure further comprises a standby water tank, wherein the standby water tank is adjacent to the water tank, a water pump is arranged in the standby water tank, and the water pump can inject water in the standby water tank into the water tank through an inlet in the upper portion of the water tank. The rheostat structure further comprises a magnetic material and a reed switch which are used for controlling the water pump to work. The rheostat structure of the electrical-hydraulic rheostat starter has the advantages of being reasonable in structure, low in cost, easy and convenient to maintain and longer in maintenance period.

Description

The variable resistance structure of electricity liquid rheostatic starter
Technical field
The present invention relates to a kind of variable resistance structure of 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, in order to avoid leaking, the factor such as electric leakage, not establishing water level to indicate, during water level decreasing, adding water temporarily.
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.
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.
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.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 in water tank can supplement, minimizing be the water of buffer tank, therefore, the stroke of electrode bar is not affected.
The adjacent water tank of this buffer tank is arranged, and buffer tank can absorb the heat of water tank, reduces evaporation of water.As preferably, between buffer tank and water tank, only there is a common plate, to obtain preferably heat-transfer effect.
In order to automatic control, also comprise magnetic material and tongue tube, magnetic material is arranged on described buoy, 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.
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, 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 droops, and sealing block can seal oilhole, during bolt rotary, swing arm is opened oilhole under the influence of centrifugal force and is 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 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 present invention has rational in infrastructure, that cost is low, it is simple and convenient to safeguard, maintenance period extends beneficial effect.
 
Summary of the invention
The present invention, according to above deficiency, provides a kind of variable resistance structure of electric liquid rheostatic starter, adds water level instruction, automatic watering, prevents current from losing, is the technical scheme of the automatic apply oil of rotating mechanism.
Technical scheme of the present invention is:
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;
It is characterized in that, 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;
Flexible bar, 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.
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.
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:
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;
Flexible bar 57, 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.
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.
Also comprise buffer tank 13, the adjacent water tank 11 of this buffer tank 13 is arranged, the built-in water pump 56 of buffer tank 13, and 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 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.
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, top offers the oilhole 45 be communicated with oil pocket 43, also comprise swing arm 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 droop, sealing block can seal oilhole 45, and when screw rod 42 rotates, swing arm 46 is opened oilhole 45 under the influence of centrifugal force and 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.
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.

Claims (8)

1. 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:
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;
Flexible bar (57), the slot (141) of partial insertion tank lid (14) inner face, an end points and buoy (54) are fixing, along with moving up and down of buoy (54), water level vertically can be changed convert level change to by flexible bar (57).
2. the variable resistance structure of a kind of electric liquid rheostatic starter as claimed in claim 1, 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.
3. the variable resistance structure of a kind of electric liquid rheostatic starter as claimed in claim 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.
4. the variable resistance structure of a kind of electric liquid rheostatic starter as described in any one of claim 1-3, it is characterized in that, also comprise buffer tank (13), this buffer tank (13) adjacent water tank (11) is arranged, 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).
5. the variable resistance structure of a kind of electric liquid rheostatic starter as claimed in claim 4, it is characterized in that, also comprise magnetic material (53) and tongue tube (52), magnetic material (53) is arranged on described 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), water pump (56) works.
6. the variable resistance structure of a kind of electric liquid rheostatic starter as claimed in claim 5, it is characterized in that, described 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 upper mobile at 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, electric machine rotation, drive screw rod (42) to rotate, nut (45) moves up and down, and drives one in often pair of electrode bar (23) to move up and down.
7. the variable resistance structure of a kind of electric liquid rheostatic starter as claimed in claim 6, it is characterized in that, described screw rod (42) top offers the oil pocket (43) of splendid attire oil, top offers the oilhole (45) be communicated with oil pocket (43), also comprise swing arm (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 droop, 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.
8. the variable resistance structure of a kind of electric liquid rheostatic starter as claimed in claim 6, 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.
CN201410515950.8A 2014-09-29 2014-09-29 The variable resistance structure of electro-hydraulic starting rheostat Active CN104270037B (en)

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Application Number Priority Date Filing Date Title
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CN104270037B CN104270037B (en) 2017-08-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107275021A (en) * 2015-02-28 2017-10-20 朱海燕 Available for electronics or the electromagnetic drive rotating fluid of power system from variohm
CN108599626A (en) * 2018-05-08 2018-09-28 常康华 A kind of mine motor smooth starting method
CN108573785B (en) * 2018-05-08 2019-12-13 苏州理合文科技有限公司 Electrohydraulic variable resistance starter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201213245Y (en) * 2008-06-27 2009-03-25 襄樊赛克斯电气有限公司 High-low voltage cage type heat variant fluid blocking soft starter
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
CN103323079B (en) * 2013-06-05 2016-04-13 江苏方建工程质量鉴定检测有限公司 A kind of Water Level in Foundation Pit inspection well middle water level automated watch-keeping facility
CN204103806U (en) * 2014-09-29 2015-01-14 安吉县天宝电控设备有限公司 The variable resistance structure of electricity liquid rheostatic starter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107275021A (en) * 2015-02-28 2017-10-20 朱海燕 Available for electronics or the electromagnetic drive rotating fluid of power system from variohm
CN108599626A (en) * 2018-05-08 2018-09-28 常康华 A kind of mine motor smooth starting method
CN108573785B (en) * 2018-05-08 2019-12-13 苏州理合文科技有限公司 Electrohydraulic variable resistance starter

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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.