CN101645596B - Protection device for speed regulating branch control cabinet of vibrating motor - Google Patents
Protection device for speed regulating branch control cabinet of vibrating motor Download PDFInfo
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- CN101645596B CN101645596B CN200910307403XA CN200910307403A CN101645596B CN 101645596 B CN101645596 B CN 101645596B CN 200910307403X A CN200910307403X A CN 200910307403XA CN 200910307403 A CN200910307403 A CN 200910307403A CN 101645596 B CN101645596 B CN 101645596B
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Abstract
A protection device for a speed regulating branch control cabinet of a vibrating motor is disclosed, relating to construction tool. Using a quadrupole circuit breaker as the protection device for the motor leads to high cost, and the branch control cabinet is controlled by an AC contactor to switch on and switch off, which is not only free from the functionalities of a protection branch and a frequency converter, but also high in cost. The protection device comprises a startup stopping device arranged at the branch control cabinet and an overload protection device arranged at an input end of a motor power source, which are characterized in that: the startup stopping device comprises a branch control cabinet air switch, the overload protection device comprises a motor air switch, a first output end and a second output end of the branch control cabinet air switch are connected with the input end of the motor air switch which is connected with a first phase line and a second phase line of the motor, and a third output end of the branch control cabinet air switch is connected with a third phase line of the motor. The safety of product is enhanced while the cost for system is lowered.
Description
[technical field]
The present invention relates to building implement, refer to protection device for speed regulating branch control cabinet of vibrating motor especially.
[background technology]
One cover dither motor frequency converter timing system, it is mainly used in high-speed railway, highway, highway bridge, engineering construction concrete prefabricated element.A general cover dither motor frequency converter timing system comprises 27 parallel branch control cubicles, any moment only allows a branch control cabinet in work, every branch control cabinet need be controlled on the concrete prefabricated mould all motors and move simultaneously or stop simultaneously, and each concrete prefabricated mould has 8～9 motors.In actual moving process, the normal loosening phase shortage phenomenon that caused that occurs because of anchor bolt is burnt the motor situation.For avoiding motor overload, the scheme that adopts as shown in Figure 1, 2 at present: civil power enters the power input 1 of frequency converter 2, and power take-off U, the V of frequency converter, 3 parallel connections of W three-phase are input among L1, L2, the L3 of A.C. contactor 7 in the branch control cabinet 4; Contact T1, the T2 of A.C. contactor 7, T3 are connected to four-pole circuit breaker 6, and three utmost points are connected to motor 10 in the output of four-pole circuit breaker 6, and an other utmost point is connected to motor run indicator 11.When the dither motor phase shortage was transshipped, through the electric current increase of four-pole circuit breaker 6, the sheet metal temperature of four-pole circuit breaker 6 raise and closed contact is disconnected, the stall of motor dead electricity, and the indicator light 11 that is connected with circuit breaker 6 simultaneously goes out.This method reliability height, but on a branch road, need be provided with 9 four-pole circuit breakers, 1 A.C. contactor, 11,1 button 8 of 9 indicator lights etc., frequency converter 2 is connected to form a cover system with 27 branch roads in parallel, and cost is quite high; On the other hand, in case the branch control cabinet short circuit, A.C. contactor can't be cut off the electricity supply, and frequency converter, branch control cabinet very easily lost efficacy because of electric current is excessive.
[summary of the invention]
The technical assignment of the technical problem to be solved in the present invention and proposition is that the prior art scheme is improved and improved, and a kind of protection device for speed regulating branch control cabinet of vibrating motor is provided, and makes it when guaranteeing machine operation safety, reduces cost.For this reason, the present invention takes following technical scheme:
Protection device for speed regulating branch control cabinet of vibrating motor; comprise frequency converter; the branch control cabinet of the plural platform parallel connection that is connected with frequency converter; the motor of the plural platform parallel connection that is connected with a branch control cabinet; be located at the startup arresting stop of branch control cabinet and be positioned at the overload protection arrangement of motor power input; it is characterized in that: described startup arresting stop comprises the branch control cabinet air switch; described overload protection arrangement comprises the motor air switch; described branch control cabinet air switch is provided with first output; second output and the 3rd output; described motor air switch is provided with first output and second output; first output of branch control cabinet air switch links to each other with the input of second output with the motor air switch; first output of described motor air switch and second output link to each other with first phase line and second phase line of motor respectively, and the 3rd output of branch control cabinet air switch links to each other with the third phase line of motor.Each motor is equipped with a motor air switch, branch control cabinet is equipped with a branch control cabinet air switch, link to each other with the output of branch control cabinet air switch after the input parallel connection of a plurality of motor air switches, link to each other with the output of frequency converter after the input parallel connection of a plurality of branch control cabinet air switches.One branch road cabinet control switch is used to control the start and stop of all motors that link to each other with this control cubicle, and a motor air switch can be used for controlling the motor that is attached thereto dead electricity.Use startup shutdown switch place of switches button and the A.C. contactor of branch control cabinet air switch as branch control cabinet, can understand motor power on/off situation from the position of air switch, so can omit indicator light again, but also omitted the relevant facility that the ac contactor coil in the branch control cabinet is powered, effectively reduce cost; On the other hand, in case branch road is short-circuited, the branch control cabinet air switch can be cut off the electricity supply, and effectively protects the components and parts on frequency converter and this branch road, improves the safety in utilization of product, increases the service life.The motor air switch links to each other with the motor phase line, in case motor overload, phase shortage, short circuit, the motor air switch just can disconnect motor power, protection motor and the branch control cabinet that is attached thereto.
As the further of technique scheme improved and replenish, the present invention also comprises following additional technical feature:
One power line is introduced the input of described frequency converter, and the output of frequency converter is connected with the input of the branch control cabinet air switch of a plurality of parallel connections.
Described branch control cabinet air switch is three utmost point air switches, but it is arranged in the opticoel of a branch control cabinet.But three utmost point air switches are arranged in opticoel and are convenient to check and operate.
Described motor air switch is two utmost point air switches, but it is arranged in the opticoel of branch control cabinet.Two utmost point air switches reduce cost than four utmost point air switches under the prerequisite of reliably protecting motor.But air switch is arranged in the opticoel of branch control cabinet, checks, easy to operate.
Beneficial effect:
1, used the switch of air switch as branch control cabinet; frequency converter in the protection system and the components and parts in the branch road; use indicator light, shift knob, A.C. contactor have been omitted simultaneously; but also the 220V that has omitted branch control cabinet powers reduction system cost when improving Product Safety.
2, adopted the motor air switch to adopt the two poles of the earth breaker protection motor, reduced by two utmost points, guaranteed to have reduced cost under the product reliability prerequisite than four-pole circuit breaker.
[description of drawings]
Fig. 1 be existing frequency converter with branch control cabinet in be connected block diagram;
Fig. 2 is existing branch control cabinet electric diagram;
Fig. 3 be frequency converter of the present invention with branch control cabinet in be connected block diagram;
Fig. 4 is an electrical connection diagram in the branch control cabinet of the present invention.
[embodiment]
Below in conjunction with Figure of description technical scheme of the present invention is described in further detail.
As Fig. 3; shown in 4: the present invention includes frequency converter 2; the branch control cabinet 4 of the plural platform parallel connection that is connected with frequency converter 2; the motor 10 of the plural platform parallel connection that is connected with a branch control cabinet 4; be located at the startup arresting stop of branch control cabinet 4 and be positioned at the overload protection arrangement of motor 10 power inputs; starting arresting stop is three utmost point branch control cabinet air switches 12; overload protection arrangement is a two-pole machine air switch 13; branch control cabinet air switch 12 is provided with first output; second output and the 3rd output; motor air switch 13 is provided with first output and second output; first output of branch control cabinet air switch 12 links to each other with the input of second output with motor air switch 13; first output of motor air switch 13 and second output link to each other with first phase line and second phase line of motor 10 respectively, and the 3rd output of branch control cabinet air switch 12 links to each other with the third phase line of motor 10.One power line is introduced the input 1 of frequency converter 2, and the output 3 of frequency converter 2 is connected with the branch control cabinet air switch of a plurality of parallel connections 12 inputs 5.But it is arranged in the opticoel of a branch control cabinet 4.But it is arranged in the opticoel of branch control cabinet 4.
The course of work: exchange the input 1 that the 380V power supply is incorporated into frequency converter 2, the U of frequency converter 2 (T1), V (T2), W (T3) output 3 is connected with the input 5 of the branch control cabinet air switch 12 of 27 parallel connections, branch control cabinet air switch 12 closes, all motor air switches 13 in this branch control cabinet 4 are closed, make first output and second output of output 9 of branch control cabinet air switch 12 be connected with two of motor 10 by motor air switch 13, the 3rd output of the output 9 of branch control cabinet air switch 12 directly links to each other with the third phase line of motor 10, thereby, when frequency converter 2 in when operation, the motor 10 that the branch control cabinet 4 that branch control cabinet air switch 12 closes is connected all can move.If certain motor 10 has one to open circuit mutually, then the electric current of two-phase increases in addition, wherein has a utmost point that is connected in the motor air switch 13 at least, when the current value of this utmost point rated value greater than motor air switch 13, behind the operation certain hour, the motor air switch 13 of this utmost point will disconnect, cause at least that two-phase makes motor 10 three-phases all not have electric current for opening circuit, can get from last analysis, be in a utmost point in motor air switch 13 the two poles of the earth mutually if open circuit, then another utmost point of motor air switch 13 will disconnect, and does not pass through motor air switch 13 mutually if open circuit, and then the two poles of the earth of motor air switch 13 all can disconnect, like this, protected the normal operation of motor 10; Only there is the two-phase overload situations in motor 10 overloads; there are not motor 10 1 phase overload situations; thereby the two-phase the rarest of motor 10 overloads is mutually by motor air switch 13; if only by a utmost point; this utmost point operation will disconnect after a period of time so; and phase shortage appears; other utmost point with rear motor air switch 13 also will disconnect; if the two-phase of motor 10 overloads is all passed through motor air switch 13; then operation after a while; the two poles of the earth of motor air switch 13 all can disconnect, motor 10 dead electricity, thus protected motor 10 overloads.
Protection device for speed regulating branch control cabinet of vibrating motor shown in above Fig. 3,4 is specific embodiments of the invention; substantive distinguishing features of the present invention and progress have been embodied; can be according to the use needs of reality; under enlightenment of the present invention; it is carried out the equivalent modifications of aspects such as shape, structure, all at the row of the protection range of this programme.
Claims (4)
1. protection device for speed regulating branch control cabinet of vibrating motor; comprise frequency converter (2); the branch control cabinet (4) of the plural platform parallel connection that is connected with frequency converter (2); the motor (10) of the plural platform parallel connection that is connected with a branch control cabinet (4); be located at the startup arresting stop of branch control cabinet (4) and be positioned at the overload protection arrangement of motor (10) power input; it is characterized in that: described startup arresting stop comprises branch control cabinet air switch (12); described overload protection arrangement comprises motor air switch (13); described branch control cabinet air switch (12) is provided with first output; second output and the 3rd output; described motor air switch (13) is provided with first output and second output; first output of branch control cabinet air switch (12) links to each other with the input of second output with motor air switch (13); first output of described motor air switch (13) and second output link to each other with first phase line and second phase line of motor (10) respectively, and the 3rd output of branch control cabinet air switch (12) links to each other with the third phase line of motor (10).
2. protection device for speed regulating branch control cabinet of vibrating motor according to claim 1; it is characterized in that: a power line is introduced the input (1) of described frequency converter (2), and the output (3) of frequency converter (2) is connected with branch control cabinet air switch (12) input (5) of a plurality of parallel connections.
3. protection device for speed regulating branch control cabinet of vibrating motor according to claim 2 is characterized in that: described branch control cabinet air switch (12) is three utmost point air switches, its be arranged in a branch control cabinet (4) but opticoel.
4. protection device for speed regulating branch control cabinet of vibrating motor according to claim 3 is characterized in that: described motor air switch (13) is two utmost point air switches, its be arranged in branch control cabinet (4) but opticoel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910307403XA CN101645596B (en) | 2009-09-21 | 2009-09-21 | Protection device for speed regulating branch control cabinet of vibrating motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910307403XA CN101645596B (en) | 2009-09-21 | 2009-09-21 | Protection device for speed regulating branch control cabinet of vibrating motor |
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| Publication Number | Publication Date |
|---|---|
| CN101645596A CN101645596A (en) | 2010-02-10 |
| CN101645596B true CN101645596B (en) | 2011-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910307403XA Active CN101645596B (en) | 2009-09-21 | 2009-09-21 | Protection device for speed regulating branch control cabinet of vibrating motor |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111650879B (en) * | 2020-07-01 | 2024-06-25 | 辽宁品诺环保科技有限公司 | Electric control system of eddy current separator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2725421Y (en) * | 2004-08-21 | 2005-09-14 | 杨小建 | Starting device of concrete vibrator |
| CN201051737Y (en) * | 2007-07-16 | 2008-04-23 | 郑智杰 | High frequency vibrator power control cabinet |
| CN201523216U (en) * | 2009-09-21 | 2010-07-07 | 卧龙电气集团股份有限公司 | Vibration motor speed-regulating branch pipe control cabinet protection device |
-
2009
- 2009-09-21 CN CN200910307403XA patent/CN101645596B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2725421Y (en) * | 2004-08-21 | 2005-09-14 | 杨小建 | Starting device of concrete vibrator |
| CN201051737Y (en) * | 2007-07-16 | 2008-04-23 | 郑智杰 | High frequency vibrator power control cabinet |
| CN201523216U (en) * | 2009-09-21 | 2010-07-07 | 卧龙电气集团股份有限公司 | Vibration motor speed-regulating branch pipe control cabinet protection device |
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| Publication number | Publication date |
|---|---|
| CN101645596A (en) | 2010-02-10 |
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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 | ||
| ASS | Succession or assignment of patent right |
Owner name: SHAOXING OLI-WOLONG VIBRATOR CO., LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20110518 Address after: 312300 No. 1801 Renmin West Road, Zhejiang, Shangyu Applicant after: Wolong Electric Group Co., Ltd. Co-applicant after: Shaoxing Oli-wolong Vibrator Co., Ltd. Address before: 312300 No. 1801 Renmin West Road, Zhejiang, Shangyu Applicant before: Wolong Electric Group Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |