CN211711920U - Belt feeder stay cord switch warning circuit and protection system and device - Google Patents
Belt feeder stay cord switch warning circuit and protection system and device Download PDFInfo
- Publication number
- CN211711920U CN211711920U CN201922374490.2U CN201922374490U CN211711920U CN 211711920 U CN211711920 U CN 211711920U CN 201922374490 U CN201922374490 U CN 201922374490U CN 211711920 U CN211711920 U CN 211711920U
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- pull
- cord switch
- alarm
- rectifier
- switch
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Abstract
The utility model discloses a belt conveyor pull-cord switch alarm circuit, a protection system and a device, which comprises a rectifier, a contactor coil and a pull-cord switch alarm module; the input end of the rectifier is connected with alternating current, a contactor coil is connected between the rectifier and a live wire, and the alarm modules at the two ends of the pull-cord switch are respectively connected with the input end and the output end of the rectifier; the pull-cord switch alarm module comprises a pull-cord switch and an audible and visual alarm which are connected in parallel. When the pull switch is in circuit break, the automatic bypass and the automatic sound and light alarm of the current can be realized, the problem that the pull switch is not easy to find after action is solved, the maintenance efficiency of the pull switch is improved, and the running reliability and safety of the belt are improved.
Description
Technical Field
The utility model belongs to the safety protection field of belt feeder equipment relates to a belt feeder stay cord switch warning circuit and protection system and device.
Background
The pull-cord switch is widely applied to the protection of various conveyor belt systems, and in field application, when the conveyor belt encounters an abnormal condition, the conveyor belt can be quickly stopped by using the pull-cord switch. Coal-conveying belt of thermal power factory widely uses the stay cord switch, make the interior sound contact action of stay cord switch through pulling wire rope, thereby switch-on or stop control circuit, mainly used is in the belt of promptly stopping transport, traditional stay cord switch does not have obvious action instruction, especially difficult in appearance when the slight action of stay cord switch or the stay cord switch internal fault, it is the action of which stay cord switch is hardly looked for in a plurality of series connection or parallel circuit, cause the difficulty for troubleshooting or the stay cord switch that resets, manpower and time are wasted, the timeliness of equipment troubleshooting has also been influenced, threaten safety in serious.
At present, belt pull-cord switches of some units in China do not have position codes, and the belt pull-cord switches are difficult to find after action or failure; the position of the pull-cord switch of some units is determined by the address code in the binary code mode, and the generated binary code is transmitted to the display screen of the end terminal of the belt by the signal wire to display the position of the fault. The belt conveyor has the defects that the belt conveyor has longer line and weaker signals, and the remote transmission signals need to be added with a repeater to amplify the signals for continuous transmission, so that the cost is huge, transmission errors are easy to occur in the signal transmission process, and the fault occurrence place cannot be well judged.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a belt feeder stay cord switch warning circuit and protection system and device, can realize the automatic bypass and the automatic audible and visual warning of electric current when the stay cord switch opens circuit, solved the difficult problem of discovering after the stay cord switch action, improved the efficiency that the stay cord switch overhauld, improved the reliability and the security of belt operation.
In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:
a belt conveyor pull-cord switch alarm circuit comprises a rectifier, a contactor coil and a pull-cord switch alarm module;
the input end of the rectifier is connected with alternating current, a contactor coil is connected between the rectifier and a live wire, and the alarm modules at the two ends of the pull-cord switch are respectively connected with the input end and the output end of the rectifier; the pull-cord switch alarm module comprises a pull-cord switch and an audible and visual alarm which are connected in parallel.
Preferably, the pull-cord switch alarm module comprises a divider resistor, and the divider resistor is connected with the audible and visual alarm in series.
Preferably, the audible and visual alarm is LTE-1101J in model.
Preferably, the model of the rectifier is MTC 55-16.
A belt conveyor pull rope protection system based on any one of the circuits comprises a plurality of pull rope switch alarm modules which are connected in series.
A belt conveyor pull-cord switch alarm device comprises a shell, a rectifier, a contactor coil, a pull-cord switch and an audible and visual alarm;
the top of the shell is provided with a through hole, and the audible and visual alarm extends out of the through hole and is positioned outside the shell;
the audible and visual alarm circuit is parallelly connected with the stay cord switch, and the stay cord switch both ends are connected with rectifier input and output respectively, and the alternating current is connected to the rectifier input, is connected with the contactor coil between rectifier and the live wire.
Compared with the prior art, the utility model discloses following beneficial effect has:
the circuit, through parallelly connected audible-visual annunciator and stay cord switch, can realize the automatic bypass and the automatic audible-visual annunciator of electric current when stay cord switch opens circuit, can accomplish the trouble and in time remind, solved the difficult problem of discovering behind the stay cord switch action, improved the efficiency that the stay cord switch overhauld, improved the reliability and the security of belt operation.
The system, through establishing ties the circuit, realize when stay cord switch opens circuit, audible-visual annunciator sends out the police dispatch newspaper, can make things convenient for people to judge out the fault location the very first time, finds the stay cord switch of trouble.
Device, through set up audible-visual annunciator on the casing, audible-visual annunciator and stay cord switch are parallelly connected, can be when stay cord switch opens circuit, audible-visual annunciator sends out the police dispatch newspaper, in time reminds.
Drawings
FIG. 1 is a schematic diagram of the system of the present invention;
fig. 2 is a schematic view of the structure of the device of the present invention.
Wherein: 1-a pull-cord switch; 2-a voltage dividing resistor; 3-audible and visual alarm; 4-a pull-cord switch alarm module; 5-a rectifier; 6-contactor coil; 7-a housing; 8-outlet port; 9-swing arm; 10-restorer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
stay cord switch wide application belongs to the belt scram protection facility one kind, and a plurality of stay cord switches set up along belt conveyor system, and when the conveyer belt met off tracking, disconnected area, fracture, spill abnormal conditions such as material, the staff pulling distributes in the arbitrary stay cord switch of belt conveyor system both sides and can stop conveyor belt fast.
As shown in figure 1, be belt feeder stay cord switch alarm circuit, including rectifier 5, divider resistance 2, contactor coil 6, work load, stay cord switch 1 and audible-visual annunciator 3.
The input end of the rectifier 5 is connected with alternating current, a contactor coil 6 is connected between the rectifier 5 and a live wire, and two ends of the pull-cord switch 1 are respectively connected with the input end and the output end of the rectifier 5; the divider resistor 2 is connected with the audible and visual alarm 3 in series, and the pull switch 1 is connected with the divider resistor 2 and the audible and visual alarm 3 in parallel.
When the pull-cord switch 1 works normally, current flows through the pull-cord switch 1, and the audible and visual alarm 3 does not respond, which indicates that the pull-cord switch 1 works normally; when the pull-cord switch 1 is in an open circuit state, current flows through the divider resistor 2 and the audible and visual alarm 3, and the audible and visual alarm 3 gives an alarm, which indicates that the pull-cord switch 1 with the audible and visual alarm function is in an action state or a fault state.
The belt conveyor pull rope protection system comprises a plurality of pull rope switch alarm modules 4 which are connected in series.
When the device is applied specifically, alternating current enters the rectifier 5 and the pull-cord switch 1 with the acousto-optic alarm function after passing through the contactor coil 6, when the pull-cord switch 1 is used normally, a power supply passes through the rectifier 5 and flows through the pull-cord switch 1, the other pull-cord switches 1 are normally attracted, the system works normally, and the device can be started normally; when the pull-cord switch 1 is in an open circuit, the power supply passes through the rectifier 5 and flows through the divider resistor 2 and the audible and visual alarm 3, and according to the voltage division principle of the series resistor, the rest pull-cord switches 1 are in an under-voltage working state and can not be normally attracted. Therefore, the protection effect on equipment and personnel is achieved, and when the pull-cord switch 1 goes wrong, the emergency stop fault caused by the pull-cord switch 1 can be rapidly eliminated by the working personnel according to the indication of the audible and visual alarm 3.
The type of the audible and visual alarm 3 is LTE-1101J. The model of the rectifier 5 is MTC 55-16.
As shown in figure 2, for belt feeder stay cord switch alarm device, including casing 7, outlet 8, swing arm 9, restorer 10 and audible-visual annunciator 3.
The side of casing 7 is equipped with outlet 8 for connect the stay cord, the swing of 9 swing arms of pulling control swing arm of stay cord, is equipped with restorer 10 on the swing arm 9, is used for the restoration of switch. Audible-visual annunciator 3 installs in switch casing 7's top, and casing 7 top is provided with the through-hole, and audible-visual annunciator 3 stretches out from the through-hole, is located the casing 7 outside. The internal loop wiring of the pull-cord switch 1 with the sound-light alarm function is finished, a terminal block is reserved inside the pull-cord switch 1, and external wiring is connected into the internal terminal block only through a sleeve of the pull-cord switch 1.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (6)
1. A belt conveyor pull-cord switch alarm circuit is characterized by comprising a rectifier (5), a contactor coil (6) and a pull-cord switch alarm module (4);
the input end of the rectifier (5) is connected with alternating current, a contactor coil (6) is connected between the rectifier (5) and a live wire, and alarm modules at two ends of the pull switch (1) are respectively connected with the input end and the output end of the rectifier (5); the pull-cord switch alarm module (4) comprises a pull-cord switch (1) and an acousto-optic alarm (3) which are connected in parallel.
2. The belt conveyor pull-cord switch alarm circuit according to claim 1, wherein the pull-cord switch alarm module (4) comprises a voltage-dividing resistor (2), and the voltage-dividing resistor (2) is connected in series with the audible and visual alarm (3).
3. The belt conveyor pull-cord switch alarm circuit according to claim 1, wherein the audible and visual alarm (3) is of the type LTE-1101J.
4. The belt conveyor pull-cord switch alarm circuit according to claim 1, wherein the rectifier (5) is of type MTC 55-16.
5. A belt conveyor pull rope protection system based on the circuit of any one of claims 1 to 4, characterized by comprising a plurality of pull rope switch alarm modules (4) connected in series.
6. A belt conveyor pull-cord switch alarm device is characterized by comprising a shell (7), a rectifier (5), a contactor coil (6), a pull-cord switch (1) and an acousto-optic alarm (3);
the top of the shell (7) is provided with a through hole, and the audible and visual alarm (3) extends out of the through hole and is positioned on the outer side of the shell (7);
the circuit of the audible and visual alarm (3) is connected with the pull-cord switch (1) in parallel, the two ends of the pull-cord switch (1) are respectively connected with the input end and the output end of the rectifier (5), the input end of the rectifier (5) is connected with alternating current, and a contactor coil (6) is connected between the rectifier (5) and a live wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922374490.2U CN211711920U (en) | 2019-12-25 | 2019-12-25 | Belt feeder stay cord switch warning circuit and protection system and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922374490.2U CN211711920U (en) | 2019-12-25 | 2019-12-25 | Belt feeder stay cord switch warning circuit and protection system and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211711920U true CN211711920U (en) | 2020-10-20 |
Family
ID=72819955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922374490.2U Expired - Fee Related CN211711920U (en) | 2019-12-25 | 2019-12-25 | Belt feeder stay cord switch warning circuit and protection system and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211711920U (en) |
-
2019
- 2019-12-25 CN CN201922374490.2U patent/CN211711920U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201020 Termination date: 20211225 |
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| CF01 | Termination of patent right due to non-payment of annual fee |