CN202346366U - Chain running detection circuit - Google Patents
Chain running detection circuit Download PDFInfo
- Publication number
- CN202346366U CN202346366U CN2011204772008U CN201120477200U CN202346366U CN 202346366 U CN202346366 U CN 202346366U CN 2011204772008 U CN2011204772008 U CN 2011204772008U CN 201120477200 U CN201120477200 U CN 201120477200U CN 202346366 U CN202346366 U CN 202346366U
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- CN
- China
- Prior art keywords
- chain
- detection circuit
- relay
- plc
- running detection
- 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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- Control Of Conveyors (AREA)
Abstract
The utility model discloses a chain running detection circuit. A speed measurement switch is arranged on a driven wheel for driving a chain and connected to a relay; a normally closed contact signal of the relay is input into a program of a programmable logic controller (PLC); and the PLC outputs a signal to drive an indicating lamp and an alarm. The chain running detection circuit can detect whether the chain runs normally and sound an alarm so as to guarantee normal running of production and prevent production halt.
Description
Technical field
The utility model relates to a kind of testing circuit, especially a kind of chain operation testing circuit.
Background technology
A kind of discharging spiral was arranged in the past, and it drives the spiral sprocket wheel by motor through chain, and after the long-time running, chain often ruptures, and needs in time to repair to change, as finds untimelyly then can cause stopping accident.
Summary of the invention
The utility model aims to provide a kind of chain testing circuit, and whether it can detect chain work normal, thereby guarantees the transfer system normal operation, prevents that stopping accident from taking place.The task of the utility model is to accomplish like this; A kind of chain operation testing circuit; It is characterized in that: the switch that tests the speed is installed driving on the follower of chain; The switch that tests the speed is connected on the relay, and normally closed some signal of relay is input in the PLC program, and PLC output drives indicator lamp and annunciator.Whether the running that the utility model can detect chain is normal, and gives the alarm, and guarantees to produce normal operation, prevents that the stopping production accident from taking place.
Description of drawings
Fig. 1 is the test the speed circuit connection diagram of switch and relay of this circuit; Fig. 2 is the order drawing in the PLC.
The specific embodiment
Connect the DC24V power supply to the switch that tests the speed, and make DC24V relay K l of output control, be input to voltage signal of PLC, lead to, be high level with the normally closed contact of Kl; Disconnected, be low level; The zone bit of getting band 0.5HZ flicker in PLC inside respectively with the Kl incoming signal with.After the chain fracture, the switch that tests the speed does not detect turn signal, and Kl breaks off, and the normally closed point of Kl is connected, and IKI is a high level, and indicator lamp and warning loud-speaker will glimmer and pipe.
Claims (1)
1. chain operation testing circuit; It is characterized in that: the switch that tests the speed is installed driving on the follower of chain; The switch that tests the speed is connected on the relay, and normally closed some signal of relay is input in the PLC program, and PLC output drives indicator lamp and annunciator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204772008U CN202346366U (en) | 2011-11-25 | 2011-11-25 | Chain running detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204772008U CN202346366U (en) | 2011-11-25 | 2011-11-25 | Chain running detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202346366U true CN202346366U (en) | 2012-07-25 |
Family
ID=46535387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204772008U Expired - Fee Related CN202346366U (en) | 2011-11-25 | 2011-11-25 | Chain running detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202346366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017036029A1 (en) * | 2015-09-06 | 2017-03-09 | 中国矿业大学 | Breakage detection system and method of chains of a scraper conveyor |
-
2011
- 2011-11-25 CN CN2011204772008U patent/CN202346366U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017036029A1 (en) * | 2015-09-06 | 2017-03-09 | 中国矿业大学 | Breakage detection system and method of chains of a scraper conveyor |
| US10207874B2 (en) | 2015-09-06 | 2019-02-19 | China University Of Mining And Technology | Breakage detection system and method of chains of a scraper conveyor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20120725 Termination date: 20121125 |