CN100424790C - Hydraulic start stepless speed regulating operator of cage motor - Google Patents
Hydraulic start stepless speed regulating operator of cage motor Download PDFInfo
- Publication number
- CN100424790C CN100424790C CNB2006100175586A CN200610017558A CN100424790C CN 100424790 C CN100424790 C CN 100424790C CN B2006100175586 A CNB2006100175586 A CN B2006100175586A CN 200610017558 A CN200610017558 A CN 200610017558A CN 100424790 C CN100424790 C CN 100424790C
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- CN
- China
- Prior art keywords
- speed regulating
- cage motor
- hydraulic start
- stepless speed
- insulation
- 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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Abstract
The present invention discloses a hydraulic start speed regulating operator without steps for a cage motor, which relates to a liquid varistor. The present invention aims at providing a hydraulic start speed regulating operator without steps for the cage motor, which has the advantages of simple structure, low cost, small start current, smooth and no impact. The present invention has the technical scheme that the hydraulic start speed regulating operator without steps for the cage motor comprises a fixed contact head, a static contact head and resistor liquid. Both ends of three insulation rollers are rotationally supported on a base board and a box cover of the box, a static contact strip is arranged outside each insulation roller, each static contact strip is connected with a, b c phases of a stator of a motor, electricity conducting contact strips are arranged on the insulation rollers which are symmetrical to the static contact strips; electricity conducting contact strips on the three insulation rollers are respectively and electrically connected with A, B and C of three phase power supply; chain wheels are arranged on three shafts of the insulation rollers above the box cover; chains are arranged on the three chain wheels; a driving device on the box cover is connected with the shaft of the insulation roller in a transmission way. The present invention is used for regulating the speed of motors.
Description
Technical field:
The present invention relates to a kind of liquid rheostat, particularly hydraulic start stepless speed regulating operator of cage motor.
Background technology:
When starting, existing squirrel-cage motor need use autotransformer, reactor, though can reach the purpose of electric motor starting, these corollary equipment volumes are big, expensive high voltage reactor is an example, and thousands of at least units reach tens thousand of units at most, starting current is big, starting multiplying power height, underloading rate IST/Ie is 3-5 times, heavily loaded rate IST/Ie is 5-7 times.
Summary of the invention:
The purpose of this invention is to provide a kind of simple in structurely, the little level and smooth nothing of the low and starting current of cost is impacted.Technical scheme of the present invention is, hydraulic start stepless speed regulating operator of cage motor, comprise conducting treadle bar and stationary contact bar and resistor fluid, it is characterized in that: the two ends rotational support of three insulated rollers of distribution triangular in shape is on the base plate and case lid of casing, three insulated rollers respectively be provided with outward a stationary contact bar respectively with a of motor stator, b, c is electrically connected, with the symmetrical insulated rollers of stationary contact bar on be provided with conducting treadle bar, conducting treadle bar on three insulated rollers respectively with three phase mains A, B, C is electrically connected, on three above case lid insulation roll shafts, respectively be provided with a sprocket wheel, chain places on three sprocket wheels, and the drive unit on the case lid is connected with an insulated rollers through-drive.Described drive unit is a handwheel, and this handwheel just is located on the insulation roll shaft.Described resistor fluid is NaOH or NaCl solution.Contain anti-icing fluid in the resistor fluid.The present invention is owing to adopted the technical measures of step-less adjustment resistor fluid resistance.Thereby the present invention has little, the level and smooth nothing of starting current compared with the prior art and impacts, and realizes the remarkable advantage of stepless speed regulation.
Description of drawings:
Accompanying drawing is removed the perspective view of casing for the present invention.
Embodiment:
In conjunction with above accompanying drawing the present invention is elaborated, be provided with the insulated rollers 1 that is angular distribution in the casing, its two ends are provided with axle 3 rotational support on case lid and box plate, be equipped with a vertical conducting treadle bar 2 on the surface of three insulated rollers, being provided with stationary contact bar 7 outside each insulated rollers surface can contact with the bus on the insulated rollers, and each stationary contact bar is connected on the interior supporting bracket of case.The stationary contact bar is connected with binding post on the case lid, three leads are through at respectively in the hole of insulated rollers and axle, its two ends respectively with three insulated rollers on conducting treadle bar and A, B, the C of three phase mains be connected, three binding posts on the case lid are connected mutually with a, b, the c of motor stator respectively.Respectively be provided with a sprocket wheel 4 on three insulation roll shafts outside the case lid, chain 5 places on three sprocket wheels, and handwheel 6 is installed on the insulation roll shaft.Drive motors and reductor also can be set on case lid drive one of them insulation roll shaft rotation.When adopting motor-driven, reductor should be arranged, contact-making switch should be set, make the drive motors stall when conducting treadle bar and stationary contact bar or when forwarding dorsad the stationary contact bar to.During manual actuation, can locate to be provided with a guide vane end stop for 180 ° at stationary contact bar dorsad.Fill NaOH or NaCl solution in the casing, it is resistor fluid, the concentration of resistor fluid is big more, its resistance is big more, can be according to the starting current size of power source voltage and requirement, determine the resistance of resistor fluid, mix corresponding resistor fluid, because the present invention has the technological means of step-less adjustment resistor fluid resistance, thereby do not require the resistance of accurate resistor fluid, make the resistor fluid configuration simple, and the resistor fluid that can dispose can use at the motor in the certain specification scope, enlarge the scope of application of the present invention, thereby avoided a kind of resistor fluid starter can not be used for the defective of other specification motors.Resistor fluid should flood conducting treadle bar and the stationary contact bar in the case.
Method of operation of the present invention is, prestart of the present invention should be in the room, it is the symmetric position that conducting treadle bar should be in the stationary contact bar, the distance of itself and fixed contact is maximum, at this moment, resistor fluid resistance maximum between stationary contact bar and the conducting treadle bar, when electric motor starting, at first with after conducting treadle bar and static touch article and power supply and the motor stator winding connection, rotate handwheel and make conducting treadle bar close to the static touch article gradually, this process resistor fluid value reduces gradually, motor is by increasing gradually at a slow speed, after rated speed, conducting treadle bar and stationary contact bar are joined, finish electric motor starting.The present invention is the starting of available slip ring motor also, and should be connected three conducting treadle bars respectively this moment with A, B, C in the slip ring motor rotor, simultaneously three stationary contact row cultures envelope stars is connected, and promptly can be used for the slip ring motor starting.
Claims (4)
1. hydraulic start stepless speed regulating operator of cage motor, comprise conducting treadle bar and stationary contact bar and resistor fluid, it is characterized in that: the two ends rotational support of three insulated rollers of distribution triangular in shape is on the base plate and case lid of casing, three insulated rollers respectively be provided with outward a stationary contact bar respectively with a of motor stator, b, c is electrically connected, with the symmetrical insulated rollers of stationary contact bar on be provided with conducting treadle bar, conducting treadle bar on three insulated rollers respectively with three phase mains A, B, C is electrically connected, on three above case lid insulation roll shafts, respectively be provided with a sprocket wheel, chain places on three sprocket wheels, and the drive unit on the case lid is connected with an insulated rollers through-drive.
2. hydraulic start stepless speed regulating operator of cage motor according to claim 1 is characterized in that: described drive unit is a handwheel, and this handwheel is located on the insulation roll shaft.
3. hydraulic start stepless speed regulating operator of cage motor according to claim 1 is characterized in that: described resistor fluid is NaOH or NaCl solution.
4. hydraulic start stepless speed regulating operator of cage motor according to claim 1 is characterized in that: contain anti-icing fluid in the resistor fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100175586A CN100424790C (en) | 2006-03-24 | 2006-03-24 | Hydraulic start stepless speed regulating operator of cage motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100175586A CN100424790C (en) | 2006-03-24 | 2006-03-24 | Hydraulic start stepless speed regulating operator of cage motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1832060A CN1832060A (en) | 2006-09-13 |
| CN100424790C true CN100424790C (en) | 2008-10-08 |
Family
ID=36994236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100175586A Expired - Fee Related CN100424790C (en) | 2006-03-24 | 2006-03-24 | Hydraulic start stepless speed regulating operator of cage motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100424790C (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4670735A (en) * | 1984-07-10 | 1987-06-02 | Michel Bensadoun | Liquid rheostat with circulating electrolyte |
| CN2585484Y (en) * | 2002-06-20 | 2003-11-05 | 襄樊海纳电气有限公司 | Water rheostat soft starting device for pump motor |
| CN2693205Y (en) * | 2004-03-09 | 2005-04-20 | 孙雍胜 | Welding mask |
| CN2882113Y (en) * | 2006-03-24 | 2007-03-21 | 尚勤贵 | Liquid start stepless speed regulating of cage motor |
-
2006
- 2006-03-24 CN CNB2006100175586A patent/CN100424790C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4670735A (en) * | 1984-07-10 | 1987-06-02 | Michel Bensadoun | Liquid rheostat with circulating electrolyte |
| CN2585484Y (en) * | 2002-06-20 | 2003-11-05 | 襄樊海纳电气有限公司 | Water rheostat soft starting device for pump motor |
| CN2693205Y (en) * | 2004-03-09 | 2005-04-20 | 孙雍胜 | Welding mask |
| CN2882113Y (en) * | 2006-03-24 | 2007-03-21 | 尚勤贵 | Liquid start stepless speed regulating of cage motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1832060A (en) | 2006-09-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 Termination date: 20120324 |