CN210824173U - Belt edge tearing early warning control device - Google Patents
Belt edge tearing early warning control device Download PDFInfo
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- CN210824173U CN210824173U CN201921686894.9U CN201921686894U CN210824173U CN 210824173 U CN210824173 U CN 210824173U CN 201921686894 U CN201921686894 U CN 201921686894U CN 210824173 U CN210824173 U CN 210824173U
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- early warning
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- control device
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Abstract
The utility model relates to a belt transportation technical field specifically is belt limit tears early warning controlling means. The utility model discloses a thereby solve and take place the belt limit in the belt transportation and tear the problem because of can not in time discover to bring serious loss for the conveying system, so provide a belt limit and tear early warning controlling means. The belt edge tearing early warning control device comprises two carrier rollers for clamping a belt, wherein a potentiometer is fixedly connected below each carrier roller, and the difference signal of the output voltage of the potentiometer is processed by a processing circuit to control belt edge tearing early warning. The device is small in size, simple in structure and convenient to process, the input signal adopts the voltage signal as a judgment value, the belt fault can be found in time by rapidly feeding back the output signal through the comparator, the loss is prevented from being enlarged, and the production efficiency is effectively improved.
Description
Technical Field
The utility model relates to a belt transportation technical field specifically is belt limit tears early warning controlling means.
Background
The colliery is belt transport in the pit place more, in the belt transportation process, because each working face has article such as stock to fall on the transportation belt in the transportation, the belt limit condition of tearing appears easily, under the general condition, in time the discovery problem has handled and can not bring serious consequence, but if the discovery is not in time, in case the trouble that brings for colliery underground transportation system after the belt limit is torn is inestimable, lead to stopping production under the serious condition, even several days stop production, cause serious loss, the production efficiency has been influenced greatly.
Disclosure of Invention
The utility model discloses a thereby solve and take place the belt limit in the belt transportation and tear the problem because of can not in time discover to bring serious loss for the conveying system, so provide a belt limit and tear early warning controlling means.
The utility model discloses an adopt following technical scheme to realize: the belt edge tearing early warning control device comprises two carrier rollers for clamping a belt, wherein a potentiometer is fixedly connected below each carrier roller, and the difference signal of the output voltage of the potentiometer is processed by a processing circuit to control belt edge tearing early warning.
When the belt conveyor works, the two carrier rollers are respectively arranged on the two sides of the belt, when the belt conveyor is arranged, the carrier rollers on the two sides clamp the belt, and when the belt normally runs, the relative distance between the carrier rollers on the two sides is unchanged, so that the difference value of the voltages output by the two potentiometers is also unchanged, namely the relative voltage value is unchanged; when the belt width is torn because of unknown unpredictable trouble, both sides bearing roller relative distance changes, so the difference of the voltage of two potentiometers output changes, and relative voltage value changes promptly. Whether the belt edge of the belt is torn or not is judged by judging whether the relative voltage value of the belt is changed or not, and then the belt edge tearing early warning is controlled by the state of the belt through a processing circuit, so that monitoring personnel can timely pay attention to adjustment and check belt edge tearing faults.
The utility model discloses produced beneficial effect as follows: the device is small in size, simple in structure and convenient to process, the input signal adopts the voltage signal as a judgment value, the belt fault can be found in time by rapidly feeding back the output signal through the comparator, the loss is prevented from being enlarged, and the production efficiency is effectively improved.
Drawings
Fig. 1 is a schematic view of the installation of the present invention;
fig. 2 is a schematic view of the connection between the carrier roller and the potentiometer according to the present invention;
fig. 3 is a processing circuit diagram of the present invention.
In the figure: the device comprises a carrier roller 1, a support 2, a linkage rod 3, a fixing rod 4, a potentiometer 5, a reset spring 6, a bearing 7, a positioning screw 8 and a positioning pin 9.
Detailed Description
The belt edge tearing early warning control device comprises two carrier rollers 1 used for clamping a belt, wherein a potentiometer 5 is fixedly connected below the carrier roller 1, and the difference signal of the output voltage of the potentiometer 5 is subjected to control of belt edge tearing early warning through a processing circuit.
As shown in fig. 1, during operation, two carrier rollers 1 are respectively installed on two sides of a belt, during installation, the carrier rollers 1 on the two sides clamp the belt, and when the belt normally runs, the relative distance between the carrier rollers 1 on the two sides is unchanged, so that the difference value of the voltages output by two potentiometers 5 is also unchanged, namely the relative voltage value is unchanged; when the width of the belt is torn due to unknown unpredictable faults, the relative distance between the carrier rollers 1 on the two sides is changed, so that the difference value of the voltages output by the two potentiometers 5 is changed, namely the relative voltage value is changed. Whether the belt edge of the belt is torn or not is judged by judging whether the relative voltage value of the belt is changed or not, and then the belt edge tearing early warning is controlled by the state of the belt through a processing circuit, so that monitoring personnel can timely pay attention to adjustment and check belt edge tearing faults.
During concrete implementation, early warning controlling means is torn on belt limit still includes support frame 2, rotate on the support frame 2 and install trace 3, the one end of trace 3 pass through dead lever 4 with 1 fixed connection of bearing roller, the other end of trace 3 and the transmission shaft fixed connection of potentiometre 5, be equipped with reset spring 6 on the trace 3, reset spring 6's one end and dead lever 4 or trace 3 fixed connection, the other end and 2 fixed connection of support frame, this structure makes both sides bearing roller 1 can convenient and fast's tight belt of clamp more.
The support frame 2 is provided with a bearing 7, the linkage rod 3 is rotatably installed on the support frame 2 through the bearing 7, and the linkage rod 3 is connected with the support through the bearing 7, so that the linkage rod 3 can conveniently rotate, and the sensitivity of the output voltage of the potentiometer 5 is indirectly improved. The other end of the linkage rod 3 is coaxially and fixedly connected with a transmission shaft of the potentiometer 5, so that the sensitivity of the potentiometer 5 is further improved, and meanwhile, the service life of the potentiometer 5 is indirectly prolonged. The coupling rod 3 is hollow, the transmission shaft of the potentiometer 5 is vertically inserted into the other end of the coupling rod 3 and is fixedly connected with the transmission shaft of the potentiometer 5 through the positioning bolt 8, and the coupling rod is connected with the transmission shaft of the potentiometer 5 through the positioning bolt 8, so that the sensitivity of the coupling rod is improved, and the coupling rod is convenient to disassemble when the potentiometer 5 is replaced and maintained in the future. The two ends of the reset spring 6 are respectively and fixedly connected with the fixed rod 4 or the linkage rod 3 and the support frame 2 through the positioning pins 9, and the structure is convenient to detach in the future during maintenance. The linkage rod 3 is vertically connected with the fixed rod 4, and the structure is more convenient for clamping a belt when in use.
The processing circuit comprises a comparator, a first resistor R1, a light emitting diode D1, a fourth resistor R4, a filter capacitor C1, a third resistor R3, a triode, a diode D2 and a relay, wherein V of the comparator isCCV of terminal and power supplyCCThe ends are connected, the grounding end of the comparator is grounded, one pin of each of the two potentiometers 5 is connected with a power supply VCCThe middle pins are all connected with the input end of the comparator, the other pin is all grounded, the first resistor R1 and the light emitting diode D1 are connected in series in the forward direction and then form a parallel circuit with the resistor R4, and one end of the parallel circuit is connected with a power supply VCCThe other end of the resistor is connected with the filter capacitor C1 in series and then grounded, the node of the fourth resistor R4 connected with the filter capacitor C1 is connected with the output end of the comparator through the third resistor R3, meanwhile, the node of the fourth resistor R4 connected with the filter capacitor C1 is also connected with the base electrode of the triode, and the emitter electrode of the triode is connected with the second resistor in series and then connected to the power supply VCCAnd the collector of the triode is connected with one end of the relay coil, the other end of the relay coil is grounded, the two ends of the relay coil are reversely connected with a diode D2 in parallel, and the normally open contact of the relay is connected with the control module P2. The circuit diagram is shown in fig. 3. When the belt runs normally, the light-emitting diode D1 is not conducted, namely, does not emit light, the triode is not triggered, and the normally open contact 1-3 of the relay is not closed; when the belt breaks down, the light-emitting diode D1 is conducted to emit light (the light-emitting diode indicates that the belt breaks down), at the moment, the triode is also triggered, the normally open contact 1-3 of the relay is closed, the signal is changed into an on-off signal through the control module P2 and is transmitted to the belt centralized control to enable the belt to give an alarm and stop, and therefore monitoring personnel can pay attention to adjust and check the faults in time.
When the device is formally operated, the belt edge tearing early warning device is firstly installed on a platform for debugging, because the intelligent centralized control center is not accessed, the test signal uses the normally closed contacts 1-5 of the relay in the circuit diagram, and when the belt breaks down during debugging, the output signal is an open circuit signal. Secondly, after the belt is debugged completely, the belt power supply is connected to the starting motor through the signal controller during formal operation, and the signal controller is connected to the 24V direct-current power supply for power supply. When all the parts are normal, the belt starts to run, the signal of the protection device only displays the power input lamp (the light emitting diode D3) under the condition of no fault, and the signal output indicator lamp (the light emitting diode D1) is not lighted. When the belt edge is torn to narrow one side of the belt, the potentiometer acts, the voltage difference output by the potentiometers on the two sides changes, and then the signal indicator lamp (light emitting diode D1) is lightened, a fault signal is output, meanwhile, the triode is conducted, the normally open contact 1-3 of the relay is closed, the signal is transmitted to the belt starting and stopping controller through the control module P2, the belt stops running, and an alarm is given. And (4) turning off the power supply of the motor, replacing the belt, recovering the normal operation, turning off the signal indicator lamp and finishing the fault treatment. The power supply of the motor is switched on, and the belt returns to normal operation.
In this embodiment, the comparator is a dual voltage comparator integrated circuit LM393D chip.
The device is suitable for belt transportation systems with large and medium-sized transportation, the belt is required to be an integrated belt such as a vulcanized belt, a non-manual riveting belt can be widely used for the same type of belt transportation systems, and the device is not limited to coal mine transportation.
Claims (9)
1. The belt edge tearing early warning control device is characterized by comprising two carrier rollers (1) used for clamping a belt, wherein a potentiometer (5) is fixedly connected below each carrier roller (1), and the difference signal of the output voltage of the potentiometer (5) is subjected to control of belt edge tearing early warning through a processing circuit.
2. The belt edge tearing early warning control device according to claim 1, further comprising a support frame (2), wherein a linkage rod (3) is rotatably mounted on the support frame (2), one end of the linkage rod (3) is fixedly connected with the carrier roller (1) through a fixing rod (4), the other end of the linkage rod (3) is fixedly connected with a transmission shaft of a potentiometer (5), a reset spring (6) is arranged on the linkage rod (3), one end of the reset spring (6) is fixedly connected with the fixing rod (4) or the linkage rod (3), and the other end of the reset spring is fixedly connected with the support frame (2).
3. The belt edge tearing early warning control device as claimed in claim 2, wherein a bearing (7) is arranged on the support frame (2), and the linkage rod (3) is rotatably mounted on the support frame (2) through the bearing (7).
4. The belt edge tearing early warning control device as claimed in claim 3, wherein the other end of the linkage rod (3) is coaxially and fixedly connected with a transmission shaft of the potentiometer (5).
5. The belt edge tearing early warning control device as claimed in claim 4, wherein the linkage rod (3) is hollow, and a transmission shaft of the potentiometer (5) is vertically inserted into the other end of the linkage rod (3) and is fixedly connected with the other end of the linkage rod through a positioning bolt (8).
6. The belt edge tearing early warning control device as claimed in claim 5, wherein two ends of the return spring (6) are respectively and fixedly connected with the fixing rod (4) or the linkage rod (3) and the support frame (2) through a positioning pin (9).
7. The belt edge tearing early warning control device as claimed in claim 6, wherein the linkage rod (3) is vertically connected with the fixing rod (4).
8. The belt edge tearing warning control device according to claim 1, 2, 3, 4, 5, 6 or 7, wherein the processing circuit comprises a comparator, a first resistor R1, a light emitting diode D1, a fourth resistor R4, a filter capacitor C1, a third resistor R3, a triode, a diode D2 and a relay, and V of the comparator isCCV of terminal and power supplyCCThe ends are connected, the grounding end of the comparator is grounded, and one pin of each of the two potentiometers (5) is connected with a power supply VCCThe middle pins are all connected with the input end of the comparator, the other pin is all grounded, the first resistor R1 and the light emitting diode D1 are connected in series in the forward direction and then form a parallel circuit with the resistor R4, and one end of the parallel circuit is connected with a power supply VCCThe other end of the fourth resistor R4 is connected with the filter capacitor C1 in series and then is grounded, the node of the fourth resistor R4 connected with the filter capacitor C1 is connected with the output end of the comparator through a third resistor R3, and meanwhile, the third resistor R3 is connected with the output end of the comparatorThe node of the fourth resistor R4 connected with the filter capacitor C1 is also connected with the base electrode of the triode, and the emitter electrode of the triode is connected with the second resistor in series and then is connected with the power supply VCCAnd the collector of the triode is connected with one end of the relay coil, the other end of the relay coil is grounded, the two ends of the relay coil are reversely connected with a diode D2 in parallel, and the normally open contact of the relay is connected with the control module P2.
9. The belt edge tearing warning control device according to claim 8, wherein the comparator is a dual voltage comparator integrated circuit LM393D chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921686894.9U CN210824173U (en) | 2019-10-10 | 2019-10-10 | Belt edge tearing early warning control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921686894.9U CN210824173U (en) | 2019-10-10 | 2019-10-10 | Belt edge tearing early warning control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210824173U true CN210824173U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921686894.9U Active CN210824173U (en) | 2019-10-10 | 2019-10-10 | Belt edge tearing early warning control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210824173U (en) |
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2019
- 2019-10-10 CN CN201921686894.9U patent/CN210824173U/en active Active
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