CN205187686U - It embraces system of stopping to exchange hydraulic pressure - Google Patents
It embraces system of stopping to exchange hydraulic pressure Download PDFInfo
- Publication number
- CN205187686U CN205187686U CN201520908577.2U CN201520908577U CN205187686U CN 205187686 U CN205187686 U CN 205187686U CN 201520908577 U CN201520908577 U CN 201520908577U CN 205187686 U CN205187686 U CN 205187686U
- Authority
- CN
- China
- Prior art keywords
- contactor
- normally open
- open contact
- brake holding
- phase circuit
- 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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- Stopping Of Electric Motors (AREA)
Abstract
The utility model discloses an it embraces system of stopping to exchange hydraulic pressure, it includes direct current component and the AC portion of connecting through the converter its characterized in that, and it is it embraces system of stopping to exchange hydraulic pressure to embrace the system that stops with gib head motor direct current. Interchange after the transformation is embraced the system failure rate of stopping and is hanged down, and 8000 yuan costs are reformed transform in 1 driving, just can save 16000 yuan in 1 year. 80, 000 yuan can be saved in 1 year to five drivings, can all save more than 10 ten thousand yuan every year later on moreover.
Description
Technical field
The utility model relates to brake holding system regions, specifically a kind of AC hydraulic brake holding system.
Background technology
Electromagnetic lifter driving is inhaled mainly through the electromagnetic force of direct solenoid sucker and is put steel plate, in order to prevent the unexpected power-off of crane from falling steel plate, safety misadventure occurs; So driving has 18 joint battery batteries, the power supply of voltage 220V is used for power-off and protects magnetic action.Electromagnetic lifter driving electric control circuit and gib head brake holding system are all adopt DC power control, and the gib head brake holding system of DC power control has very large shortcoming:
(1) fault rate is high, and DC coil easily burns out.
(2) maintenance cost is expensive, and DC coil is copper wire wound, and volume is large, price is high, every only 4500 yuan.
(3) to open speed of response slow in brake holding, Long-Time Service because of locked rotor current large to gib head motor damage greatly.
Utility model content
The utility model is for solving Problems existing in background technology, and provide a kind of AC hydraulic brake holding system, it comprises the direct component and AC portion that are connected by frequency converter.
Described direct component comprises two branch roads being connected in parallel on trunk roads, branch road one: the power failure button SB1 of serial connection, the magnet coil of DC contactor KM5; A normally open contact of branch road two: DC contactor KM5, the magnet coil of DC contactor KM1;
The trunk roads of described direct component connect frequency converter by another two normally open contacts of DC contactor KM5, and frequency converter connects the three phase circuit of AC portion by air switch QF;
Described AC portion comprises: three phase circuit connects in turn the normally open contact of DC contactor KM1, autotransformer AT, the normally open contact of AC contactor KM2, the normally open contact of electric contactor KM3, gib head motor stator M, wherein:
Wherein two alternately the normally closed interlock of electric contactor KM3, the magnet coil of AC contactor KM2 is connected in series in three phase circuit between autotransformer AT and the normally open contact of AC contactor KM2;
Brake holding motor is connected in three phase circuit between the normally open contact of the normally open contact of AC contactor KM2, electric contactor KM3.
Preferably, two the first brake holding motor M 1, second brake holding motor M 2 in parallel are connected in the three phase circuit between the normally open contact of the normally open contact of AC contactor KM2, electric contactor KM3.
The beneficial effects of the utility model
Exchange brake holding system failure rate low, 1 driving improvement cost 8000 yuan, just can save 16000 yuan in 1 year.Five drivings can save 80,000 yuan in 1 year, and can save more than 10 ten thousand yuan every year later.
Accompanying drawing explanation
Fig. 1 is utility model circuit diagram.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in further detail, but protection domain of the present utility model is not limited thereto:
Composition graphs 1.A kind of AC hydraulic brake holding system, it comprises the direct component and AC portion that are connected by frequency converter.
Described direct component comprises two branch roads being connected in parallel on trunk roads, branch road one: the power failure button SB1 of serial connection, the magnet coil of DC contactor KM5 (CJX2-1801DC220V); A normally open contact of branch road two: DC contactor KM5, the magnet coil of DC contactor KM1;
The trunk roads of described direct component connect frequency converter by another two normally open contacts of DC contactor KM5, and frequency converter (DC220V becomes AC170V3KW) connects the three phase circuit of AC portion by air switch QF (DZ47-60C20);
Described AC portion comprises: three phase circuit connects in turn the normally open contact of DC contactor KM1, autotransformer AT (SBK3KVA160V to 180 becomes 380V), the normally open contact of AC contactor KM2, the normally open contact of electric contactor KM3, gib head motor stator M, wherein:
Wherein two alternately the normally closed interlock of electric contactor KM3 (CJX2-3201AC380V), the magnet coil of AC contactor KM2 is connected in series in three phase circuit between autotransformer AT and the normally open contact of AC contactor KM2 (CJX2-3201AC380V);
Brake holding motor is connected in three phase circuit between the normally open contact of the normally open contact of AC contactor KM2, electric contactor KM3.
In preferred embodiment, in the three phase circuit between the normally open contact of the normally open contact of AC contactor KM2, electric contactor KM3, connect two the first brake holding motor M 1 (YWZ400-65), the second brake holding motor M 2 (YWZ400-65) in parallel.
Principle of work:
1, when electromagnetic lifter driving normally works, the electric contactor KM3 adhesive of gib head motor stator M, the first brake holding motor M 1 and the second brake holding motor M 2 work, and gib head lifting is the same with normal electromagnetism hanging car.
2, when dispatch from foreign news agency of driving a vehicle has a power failure, power to the electric cabinet of control by driving battery battery DC220V, press power failure button SB1, DC contactor KM5 works, the normally open contact of KM5 closes, DC contactor KM1 adhesive, the voltage of three-phase about the 170V that frequency converter exports is raised to 380V through three-phase single-circuit transformer AT, AC contactor KM2 obtains electric adhesive (the normally closed interlocking of KM2 and KM3) through electric contactor KM3 normally closed interlock, first brake holding motor M 1 and the second brake holding motor M 2 work, and gib head just can be transferred steel plate safely under power-off condition.
3, frequency converter effect: battery battery exports the alternation switch effect of DC220V by high-power electronic switch (thyristor or field effect transistor and IGBT pipe), and final conversion 380V alternating current controls gib head, brake holding motor and contactless switch.
Specific embodiment described herein is only do casehistory to the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (2)
1. an AC hydraulic brake holding system, is characterized in that it comprises the direct component and AC portion connected by frequency converter,
Described direct component comprises two branch roads being connected in parallel on trunk roads, branch road one: the power failure button SB1 of serial connection, the magnet coil of DC contactor KM5; A normally open contact of branch road two: DC contactor KM5, the magnet coil of DC contactor KM1;
The trunk roads of described direct component connect frequency converter by another two normally open contacts of DC contactor KM5, and frequency converter connects the three phase circuit of AC portion by air switch QF;
Described AC portion comprises: three phase circuit connects in turn the normally open contact of DC contactor KM1, autotransformer AT, the normally open contact of AC contactor KM2, the normally open contact of electric contactor KM3, gib head motor stator M, wherein:
Wherein two alternately the normally closed interlock of electric contactor KM3, the magnet coil of AC contactor KM2 is connected in series in three phase circuit between autotransformer AT and the normally open contact of AC contactor KM2;
Brake holding motor is connected in three phase circuit between the normally open contact of the normally open contact of AC contactor KM2, electric contactor KM3.
2. AC hydraulic brake holding system according to claim 1, is characterized in that connecting in the three phase circuit between the normally open contact of the normally open contact of AC contactor KM2, electric contactor KM3 two the first brake holding motor M 1, second brake holding motor M 2 in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520908577.2U CN205187686U (en) | 2015-11-14 | 2015-11-14 | It embraces system of stopping to exchange hydraulic pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520908577.2U CN205187686U (en) | 2015-11-14 | 2015-11-14 | It embraces system of stopping to exchange hydraulic pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205187686U true CN205187686U (en) | 2016-04-27 |
Family
ID=55780702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520908577.2U Expired - Fee Related CN205187686U (en) | 2015-11-14 | 2015-11-14 | It embraces system of stopping to exchange hydraulic pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205187686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106946177A (en) * | 2017-04-24 | 2017-07-14 | 李世强 | A kind of bridge crane brake gear |
-
2015
- 2015-11-14 CN CN201520908577.2U patent/CN205187686U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106946177A (en) * | 2017-04-24 | 2017-07-14 | 李世强 | A kind of bridge crane brake gear |
| CN106946177B (en) * | 2017-04-24 | 2018-11-16 | 柳州市瑞中运钢材储运有限公司 | Bridge crane cart brake device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20181114 |