CN208901900U - A kind of more limit switch fault rapid detection systems - Google Patents
A kind of more limit switch fault rapid detection systems Download PDFInfo
- Publication number
- CN208901900U CN208901900U CN201821369075.7U CN201821369075U CN208901900U CN 208901900 U CN208901900 U CN 208901900U CN 201821369075 U CN201821369075 U CN 201821369075U CN 208901900 U CN208901900 U CN 208901900U
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- China
- Prior art keywords
- intermediate relay
- normally opened
- power supply
- limit switch
- contact
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Abstract
The utility model discloses a kind of more limit switch fault rapid detection systems, are related to field of fault detection.The utility model includes same phase power supply, with being parallel with several air switch QF with auxiliary contact between phase power supply, and any one air switch QF be successively connected in series with the coil of the normally opened contact SQ of limit switch and the first intermediate relay KA after be linked on power supply line；Wherein, the first group of normally opened contact KA' and limit switch QF of the first intermediate relay KA is connected in parallel；Second group of normally opened contact KA " of several first intermediate relay KA is connected in parallel rear and one second intermediate relay KA+2Coil be connected in series；After the normally opened auxiliary contact of several air switch QF are sequentially connected in series.The utility model passes through the first intermediate relay KA, the second intermediate relay KA+2, third intermediate relay KA+1, air switch QF and normally opened auxiliary contact KM' carry out PLC circuit design, improve the maintenance efficiency and working efficiency of sintering machine.
Description
Technical field
The utility model belongs to field of fault detection, more particularly to a kind of more limit switch fault rapid detection systems.
Background technique
In the manufacturing process of steel, it is often necessary to it is satisfactory to obtain to carry out proportion sintering to various iron and steel raw materials
Sintering feed；Wherein it is more to possess the electrical equipment more limited for sintering plant region within the jurisdiction, and sintering machine is burnt to iron and steel raw material
The core link of knot, due to technological reason, sintering machine limit is often acted, and all restores normal after limit movement every time.
It once sintering machine wherein break down sintering machine is caused to be shut down by somewhere limit, stop entire production line can only promptly
Machine；And if not apparent failure, such as soft fault and ground connection, it is difficult to find out in the short time, therefore be delayed production, makes
At heavy economic losses.
Therefore requiring study a kind of can detect the device of more limit switch faults quickly directly to improve the working efficiency of sintering machine.
Utility model content
The purpose of this utility model is to provide a kind of more limit switch fault rapid detection systems, pass through the first intermediate relay
KA, the second intermediate relay KA+2, third intermediate relay KA+1, air switch QF and normally opened auxiliary contact KM' carry out
PLC circuit design, solve the problems, such as that existing sintering machine easily breaks down reduces with shutdown maintenance inconvenience bring productivity.
In order to solve the above technical problems, the utility model is achieved through the following technical solutions:
The utility model is a kind of more limit switch fault rapid detection systems, including with phase power supply, between the same phase power supply
Be parallel with several air switch QF with auxiliary contact, and any one air switch QF successively with the normally opened touching of limit switch
The coil of point SQ and the first intermediate relay KA are linked on power supply line after being connected in series；
Wherein, the first group of normally opened contact KA' and limit switch QF of the first intermediate relay KA is connected in parallel；
Second group of normally opened contact KA " of several first intermediate relay KA is connected in parallel rear and one second intermediate relay
Device KA+2Coil be connected in series；
After the normally opened auxiliary contact of several air switch QF are sequentially connected in series, then with third intermediate relay KA+1
Coil be connected in series；
Wherein, the third intermediate relay KA+1First group of normally opened contact KA+1' and the second intermediate relay KA+2's
First group of normally-closed contact KA+2' be respectively connected in PLC circuit plate；
Be electrically connected on the power supply line contactor KM, the contactor KM successively with normally opened button SB1, normally closed press
Button SB2With the second intermediate relay KA+2Second group of normally-closed contact KA+2" be linked on another power supply line after series connection；And it is another
A fuse FU is electrically connected on one power supply line；
Wherein, the normally opened auxiliary contact KM' and normally closed button SB of the contactor KM2It is connected in parallel.
Further, the first intermediate relay KA, the second intermediate relay KA+2With third intermediate relay KA+1Point
It is not mounted in electric box.
Further, the PLC circuit plate and display screen are electrically connected.
The utility model has the following beneficial effects:
1, the utility model is by carrying out the first group of normally opened contact KA' and limit switch QF of the first intermediate relay KA
It is connected in parallel, it can be achieved that the self-insurance of the first intermediate relay KA connects, it, can be by the after limit machine halt trouble occurs for sintering machine
Lamp inside one intermediate relay KA, which is always on, comes personnel's maintenance and replacement easy to repair, improves maintenance efficiency and the work of sintering machine
Efficiency.
2, after the utility model is sequentially connected in series by the normally opened auxiliary contact of several air switch QF, then in third
Between relay KA+1Coil be connected in series；Third intermediate relay KA+1First group of normally opened contact KA+1' and second among after
Electric appliance KA+2First group of normally-closed contact KA+2' the picture report, it can be achieved that when equipment limit failure is respectively connected in PLC circuit plate
It is alert；When ground fault occurs for the line of access limit, and its limit is caused to be spaced apart tripping, computer picture report limits power failure, equipment
It will not be shut down because of ground fault；Middle control personnel have found picture alarm, notify electrical maintenance personnel to onsite lookup event immediately
Barrier restores, the effective maintenance efficiency for improving sintering machine and work effect, and provides guarantor for the personal safety of maintenance personal
Barrier.
Certainly, any product for implementing the utility model does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
Fig. 1 is a kind of Principle of Electrical System figure of more limit switch fault rapid detection systems of the utility model；
Fig. 2 is the Principle of Electrical System figure that the utility model is sintering machine in the prior art.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
As shown in Fig. 2, being the Principle of Electrical System figure of existing sintering machine, after several limit switch normally-closed contact SQ series connection
And with one the 4th intermediate relay KA1Between series connection two power supply lines of access；And the 4th intermediate relay KA1First group of normally opened touching
Point KA1' access in PLC circuit plate；
Be electrically connected with a contactor KM on power supply line, and contactor KM successively with normally opened button SB3, normally closed button SB4With
4th intermediate relay KA1Second group of normally opened contact KA1" be linked on another power supply line after series connection；And another power supply line
On be electrically connected with a fuse FU；The wherein normally opened contact FM' of contactor KM and normally closed button SB4It is connected in parallel.Fortune
When row, the 4th intermediate relay KA1Obtain electric, the 4th intermediate relay KA1Second group of normally opened contact KA1" closure, contactor KM
It obtains electric；When a certain limit switch SQ cuts off the 4th intermediate relay KA1When, the 4th intermediate relay KA1Second group of normally opened contact
KA1" becoming normally opened contact, contactor KM power loss again, sintering machine shuts down operation, while the 4th intermediate relay KA1First group it is normally opened
Contact KA1' normally opened contact reset, computer newspaper fault message, people carry out in the state that sintering machine is shut down operation and shut down at this time
Components maintenance, reduces the working efficiency of sintering machine, reduces the output of steel.
As shown in Figure 1, the utility model is a kind of more limit switch fault rapid detection systems, including with phase power supply, with mutually electricity
Several air switch QF with auxiliary contact are parallel between source, and any one air switch QF is successively normally opened with limit switch
The coil of contact SQ and the first intermediate relay KA are linked on power supply line after being connected in series；
Wherein, the first group of normally opened contact KA' and limit switch QF of the first intermediate relay KA is connected in parallel；Centering
Between relay KA carry out self-insurance connection.The purposes done so is the lamp after breaking down shutdown, on failure intermediate relay KA
It can be always on always, the light on and off situation that service worker's opening electric box can directly observe lamp on several intermediate relay KA is come
Judge failure cause and abort situation.
Second group of normally opened contact KA " of several first intermediate relay KA is connected in parallel rear and one second intermediate relay
KA+2Coil be connected in series；
After the normally opened auxiliary contact of several air switch QF are sequentially connected in series, then with third intermediate relay KA+1Line
Circle is connected in series；
Wherein, third intermediate relay KA+1First group of normally opened contact KA+1' and the second intermediate relay KA+2First
Group normally-closed contact KA+2' be respectively connected in PLC circuit plate；It alarms as equipment limit failure picture.When the line of access limit switch
When ground fault, which occurs, causes its limit to be spaced apart tripping, computer picture report limits power failure, and equipment will not be because of ground fault
And it shuts down.Middle control personnel have found picture alarm, notify electrical maintenance personnel to onsite lookup fault recovery immediately, improve and burn
The maintenance efficiency and sintering efficiency of knot machine.
Be electrically connected with a contactor KM on power supply line, contactor KM successively with normally opened button SB1, normally closed button SB2With
Two intermediate relay KA+2Second group of normally-closed contact KA+2" be linked on another power supply line after series connection；And another power supply line
On be electrically connected with a fuse FU；
Wherein, the normally opened auxiliary contact KM' and normally closed button SB of contactor KM2It is connected in parallel.
Wherein, the first intermediate relay KA, the second intermediate relay KA+2With third intermediate relay KA+1It is separately mounted to
In electric box.
Wherein, PLC circuit plate and display screen are electrically connected.
In addition, when computer picture report limits power failure, and equipment is not shut down, is exactly limited power supply and is disclosed tripping；
When computer picture report limit switch fault, and equipment is also shut down, and is exactly limited and is acted, and maintenance personal only needs to open
Field erected more limit switch fault rapid detection system electric boxs, the intermediate relay lamp for observing which limit are bright, so that it may
Accurate locking is which of N number of limit.The time of maintenance greatly reduces, the also opposite reduction of the time of equipment downtime.
And it due to can regularly be replaced to the limit of more spacing equipments of long-play, decreases because of limit
Position self reason leads to the situation of equipment downtime.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one of the utility model
In embodiment or example.In the present specification, schematic expression of the above terms be not necessarily referring to identical embodiment or
Example.Moreover, particular features, structures, materials, or characteristics described can be in any one or more embodiment or examples
In can be combined in any suitable manner.
The preferred embodiment in the utility model disclosed above is only intended to help to illustrate the utility model.Preferred embodiment is simultaneously
There is no the details that detailed descriptionthe is all, also not limiting the utility model is only the specific embodiment.Obviously, according to this theory
The content of bright book can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to preferably
The principles of the present invention and practical application are explained, so that skilled artisan be enable to better understand and utilize this
Utility model.The utility model is limited only by the claims and their full scope and equivalents.
Claims (3)
1. a kind of more limit switch fault rapid detection systems, including with phase power supply, it is characterised in that:
Be parallel with several air switch QF with auxiliary contact between the same phase power supply, and any one air switch QF according to
The secondary coil with the normally opened contact SQ and the first intermediate relay KA of limit switch is linked on power supply line after being connected in series；
Wherein, the first group of normally opened contact KA' and limit switch QF of the first intermediate relay KA is connected in parallel；
Second group of normally opened contact KA " of several first intermediate relay KA is connected in parallel rear and one second intermediate relay
KA+2Coil be connected in series；
After the normally opened auxiliary contact of several air switch QF are sequentially connected in series, then with third intermediate relay KA+1Line
Circle is connected in series；
Wherein, the third intermediate relay KA+1First group of normally opened contact KA+1' and the second intermediate relay KA+2First
Group normally-closed contact KA+2' be respectively connected in PLC circuit plate；
Be electrically connected on the power supply line contactor KM, the contactor KM successively with normally opened button SB1, normally closed button SB2
With the second intermediate relay KA+2Second group of normally-closed contact KA+2" be linked on another power supply line after series connection；And another institute
It states and is electrically connected with a fuse FU on power supply line；
Wherein, the normally opened auxiliary contact KM' and normally closed button SB of the contactor KM2It is connected in parallel.
2. a kind of more limit switch fault rapid detection systems according to claim 1, which is characterized in that among described first after
Electric appliance KA, the second intermediate relay KA+2With third intermediate relay KA+1It is separately mounted in electric box.
3. a kind of more limit switch fault rapid detection systems according to claim 1, which is characterized in that the PLC circuit plate
It is electrically connected with display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821369075.7U CN208901900U (en) | 2018-08-23 | 2018-08-23 | A kind of more limit switch fault rapid detection systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821369075.7U CN208901900U (en) | 2018-08-23 | 2018-08-23 | A kind of more limit switch fault rapid detection systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208901900U true CN208901900U (en) | 2019-05-24 |
Family
ID=66570000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821369075.7U Expired - Fee Related CN208901900U (en) | 2018-08-23 | 2018-08-23 | A kind of more limit switch fault rapid detection systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208901900U (en) |
-
2018
- 2018-08-23 CN CN201821369075.7U patent/CN208901900U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20190524 Termination date: 20200823 |