CN202743942U - Control device for chain plate conveying device - Google Patents
Control device for chain plate conveying device Download PDFInfo
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- CN202743942U CN202743942U CN 201220448355 CN201220448355U CN202743942U CN 202743942 U CN202743942 U CN 202743942U CN 201220448355 CN201220448355 CN 201220448355 CN 201220448355 U CN201220448355 U CN 201220448355U CN 202743942 U CN202743942 U CN 202743942U
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- chain plate
- chain
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- detecting device
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- 125000006850 spacer group Chemical group 0.000 claims description 18
- 230000003534 oscillatory effect Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 abstract description 10
- 239000000428 dust Substances 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000001960 triggered effect Effects 0.000 abstract description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 abstract 3
- 101000606504 Drosophila melanogaster Tyrosine-protein kinase-like otk Proteins 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
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Abstract
The utility model discloses a control device for a chain plate conveying device. The chain plate conveying device comprises three levels of conveying chain plates, a vibrating device and a control system and further comprises a non-contact position detecting device, wherein the non-contact position detecting device comprises a proximity switch and a locating piece fixed on the rotating shaft of a chain plate off-track detecting device. According to the utility model, the position of a metal locating piece is detected according to the magnetic field change of the electromagnetic proximity switch without utilizing a direct-contact mechanical contact point mechanism, the device is installed on site without being affected by PTA (Pure Terephthalic Acid) dust or the surrounding environment, the position detection is more sensitive and reliable than before, and a protection signal can be triggered in the case that a chain plate runs off a track, thereby preventing a chain and the chain plate from being drawn to be broken.
Description
Technical field
The utility model relates to a kind of control setup, and is particularly related to a kind of control setup and method of the chain plate conveyer for polyplant.
Background technology
Polyplant is carried in PTA with the 1/2-088-Q-03 chain plate conveyer is multiplex, and by 3 grades of transporting chain plates, oscillatory system and composition of the control systems, every grade of transporting chain plate drives running by a variable-frequency motor, and every grade of carrier bar sprocket wheel is provided with chain derailing fender guard.Real-world operation alarm free often occurs after the sprocket wheel derailing and draws bad chain and the situation of disc, has greatly increased maintenance load, when serious even affect the polyester device production run.
Take the inspection of chain derailing protection switch apart; find that switch is the mechanical type rotating cam activated switch; along with sprocket wheel rotates together; the PTA dust enters cam activated switch inside along axle in the real-world operation in sprocket rotation; causing switch to damage lost efficacy; guard signal is inoperative after the chain derailing, and motor remains in operation, and causes chain and carrier bar to draw bad.Sprocket wheel is driven by variable-frequency motor in addition, and in sprocket wheel derailing protection switch triggered as normal situation, frequency converter has certain deceleration oblique wave fall time because of self character, and motor still need move a period of time and could shut down, and also can cause chain and carrier bar to draw bad.
The utility model content
According to the influence factor of above-mentioned two aspects, the utility model proposes a kind of control setup for chain plate conveyer, that is, propose a kind of contactless position detecting device and replace original mechanical type cam activated switch.
A kind of control setup for chain plate conveyer that the utility model proposes, described chain plate conveyer comprises 3 grades of transporting chain plates, oscillatory system and control system.
Further, this device comprises the contactless position detecting device.
Further, described contactless position detecting device comprises approach switch and the spacer that is fixed in the rotating shaft of carrier bar Derail detector.
Further, described spacer is sheetmetal.
In addition, the utility model also proposes a kind of control method for chain plate conveyer, comprising:
Step 1: the position detecting device of equipped with non-contact, described contactless position detecting device is comprised of electromagnetic proximity switch and the spacer that is fixed in the rotating shaft of carrier bar Derail detector;
Step 2: electromagnetic proximity switch does not directly directly contact with the metal spacer, and when the close electromagnetic proximity switch of metal spacer, the oscillating magnetic field of electromagnetic proximity switch changes;
Step 3: utilize described changes of magnetic field to determine whether the chain mat machine chain derails, cut off immediately converter power supply behind the triggering carrier bar derailing signal.
Further, described spacer is sheetmetal.
The contactless position detecting device that the utility model proposes is comprised of electromagnetic proximity switch and the metal spacer that is fixed in the rotating shaft of carrier bar Derail detector, electromagnetic proximity switch does not directly directly contact with the metal spacer, when the close electromagnetic proximity switch of metal spacer, the oscillating magnetic field of electromagnetic proximity switch changes, utilize this changes of magnetic field just can detect the change in location of metal spacer, thereby determine whether the chain mat machine chain derails.This detection mode utilizes the changes of magnetic field of electromagnetic proximity switch to detect the position of metal spacer; without the mechanical contact mechanism that directly contacts; install at the scene and be not subjected to PTA dust and surrounding environment influence; position probing is sensitiveer and reliable before comparing; in case the situation that carrier bar derailing occurs is reliable trigger protection signal immediately, prevents that chain and carrier bar from drawing bad.
Behind the scheme implementation that the utility model proposes, after the each chain derailing in service of carrier bar delivery system, fender guard all can in time detect and warning and chain; immediately shutdown feature operation; avoid chain to be drawn bad, also reduced maintenance of equipment work amount, increased the equipment safety operation reliability.
Description of drawings
Fig. 1 is the power supply wiring figure according to the 1st grade of carrier bar dragging motor of the present utility model;
Fig. 2 is the control principle drawing according to the 1st grade of carrier bar dragging motor of the present utility model; And
Fig. 3 is according to one-level carrier bar electric machine control schematic diagram of the present utility model.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that embodiment described herein only is used for explaining the utility model, rather than be used for restriction the utility model.
The utility model proposes the control setup for chain plate conveyer, described chain plate conveyer comprises 3 grades of transporting chain plates, oscillatory system and control system.Fig. 1 shows the power supply wiring figure of the 1st grade of carrier bar dragging motor.
Preferably, this device comprises the contactless position detecting device, and described contactless position detecting device comprises approach switch and the spacer that is fixed in the rotating shaft of carrier bar Derail detector.
As shown in Figure 2; after the DCS system detects carrier bar derailing signal; disconnect intermediate relay K4 power supply by block contact (INTERLOCK); relay normally open contact control frequency converter U1 shuts down; frequency converter cuts off out-put supply after moving a period of time by the deceleration oblique wave of setting fall time; motor time-delay is out of service, and the time-delay of this grade carrier bar is out of service, and might to cause sprocket wheel to draw bad.
Described spacer is preferably sheetmetal.
In a preferred embodiment, the control method for chain plate conveyer comprises:
Step 1: the position detecting device of equipped with non-contact, described contactless position detecting device is comprised of electromagnetic proximity switch and the spacer that is fixed in the rotating shaft of carrier bar Derail detector;
Step 2: electromagnetic proximity switch does not directly directly contact with the metal spacer, and when the close electromagnetic proximity switch of metal spacer, the oscillating magnetic field of electromagnetic proximity switch changes;
Step 3: utilize described changes of magnetic field to determine whether the chain mat machine chain derails, cut off immediately converter power supply behind the triggering carrier bar derailing signal.
Fig. 3 is the one-level carrier bar electric machine control schematic diagram that the utility model proposes, as shown in Figure 3, after the DCS system detects carrier bar derailing signal, directly disconnect the power supply of contactless switch K1 by block contact (INTERLOCK), make the frequency converter dead electricity cut off immediately output, motor is out of service immediately, and this grade carrier bar stops immediately without time-delay, thereby it is bad to avoid sprocket wheel to draw.
Above-mentioned only is preferred embodiment of the present utility model, certainly, with further exploration other embodiment can also be arranged according to actual needs.But, should be clear and definite be that the conversion based on similar embodiment with same idea above-mentioned or that other is not explained out all should be encompassed within the protection domain of the utility model claim.
Claims (4)
1. a control setup that is used for chain plate conveyer is characterized in that, described chain plate conveyer comprises 3 grades of transporting chain plates, oscillatory system and control system.
2. device according to claim 1 is characterized in that, this device comprises the contactless position detecting device.
3. device according to claim 1 is characterized in that, described contactless position detecting device comprises approach switch and the spacer that is fixed in the rotating shaft of carrier bar Derail detector.
4. device according to claim 3, described spacer is sheetmetal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220448355 CN202743942U (en) | 2012-09-05 | 2012-09-05 | Control device for chain plate conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220448355 CN202743942U (en) | 2012-09-05 | 2012-09-05 | Control device for chain plate conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202743942U true CN202743942U (en) | 2013-02-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220448355 Expired - Fee Related CN202743942U (en) | 2012-09-05 | 2012-09-05 | Control device for chain plate conveying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202743942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942037A (en) * | 2012-09-05 | 2013-02-27 | 江苏申久化纤有限公司 | Control device and method for chain board conveying device |
-
2012
- 2012-09-05 CN CN 201220448355 patent/CN202743942U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102942037A (en) * | 2012-09-05 | 2013-02-27 | 江苏申久化纤有限公司 | Control device and method for chain board conveying 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: 20130220 Termination date: 20160905 |