CN112865020B - Vibrating bucket work protection circuit and concentrating machine - Google Patents
Vibrating bucket work protection circuit and concentrating machine Download PDFInfo
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- CN112865020B CN112865020B CN202011532789.7A CN202011532789A CN112865020B CN 112865020 B CN112865020 B CN 112865020B CN 202011532789 A CN202011532789 A CN 202011532789A CN 112865020 B CN112865020 B CN 112865020B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0852—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load directly responsive to abnormal temperature by using a temperature sensor
Abstract
The invention discloses a vibrating bucket work protection circuit and a concentrating machine, wherein the vibrating bucket work protection circuit comprises a temperature detection module, a vibration detection module, a heartbeat package module and a control module, the heartbeat package module is provided with a temperature detection input end, a vibration detection input end and an output end, the temperature detection input end of the heartbeat package module is connected with the output end of the temperature detection module, the vibration detection input end of the heartbeat package module is connected with the output end of the vibration detection module, the input end of the control module is connected with the output end of the heartbeat package module, and the output end of the control module is connected with a controlled end of a vibrating bucket driving motor. Thereby solved the technical problem that the vibrating hopper operational reliability of concentrator is low.
Description
Technical Field
The invention relates to the technical field of vibration, in particular to a vibration hopper work protection circuit and a concentrating machine.
Background
The vibrating hopper plays an important role as a part of the concentrating machine, the performance of the vibrating hopper influences the performance of the concentrating machine and the efficiency and the effect of concentrating, but the conditions of overheating of a driving motor of the vibrating hopper and stopping of the vibrating hopper often occur in the working process of the vibrating hopper, the concentrating machine is possibly damaged while the vibrating hopper is damaged, and the working reliability of the vibrating hopper of the concentrating machine is reduced.
Disclosure of Invention
The invention mainly aims to provide a vibration hopper work protection circuit, and aims to solve the technical problem that the vibration hopper of a concentrating machine is low in work reliability.
In order to achieve the above object, the present invention provides a protection circuit for operation of a vibrating bucket, comprising:
the temperature detection module is used for detecting the working temperature of the vibration bucket driving motor so as to obtain a temperature detection signal corresponding to the working temperature of the vibration bucket driving motor;
the vibration detection module is used for detecting the vibration frequency of the vibration hopper driving motor so as to obtain a vibration detection signal corresponding to the vibration frequency of the vibration hopper driving motor;
the heartbeat package module is provided with a temperature detection input end, a vibration detection input end and an output end, the temperature detection input end of the heartbeat package module is connected with the output end of the temperature detection module, and the vibration detection input end of the heartbeat package module is connected with the output end of the vibration detection module;
the heartbeat packet module is used for outputting a first heartbeat packet signal when the working temperature of the vibration bucket driving motor is determined to be in a preset temperature interval and the vibration frequency of the vibration bucket driving motor is determined to be in a preset frequency interval according to the temperature detection signal and the vibration detection signal; when the working temperature of the vibrating bucket driving motor is determined not to be in a preset temperature range and/or the vibration frequency of the vibrating bucket driving motor is determined not to be in a preset frequency, outputting a second heartbeat packet signal; and
the input end of the control module is connected with the output end of the heartbeat package module, and the output end of the control module is connected with the controlled end of the vibrating bucket driving motor;
the control module is used for controlling the vibration bucket driving motor to keep a current running state when the first heartbeat packet signal is received and the frequency of the first heartbeat packet signal is determined to be in a preset frequency interval; when the first heartbeat packet signal is received and the frequency of the first heartbeat packet signal is determined not to be in a preset frequency interval, controlling the vibration bucket driving motor to stop working; and when the second heartbeat packet signal is received, controlling the vibration bucket driving motor to stop working.
Optionally, the temperature detection module includes a first temperature sensor, a second temperature sensor, a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor, and a second pin of the first temperature sensor and a first end of the first resistor are respectively connected to a second end of the second resistor; a second pin of the second temperature sensor and a first end of the third resistor are respectively connected with a first end of a fourth resistor; the second end of the first resistor is connected with the first end of the first capacitor; the second end of the third resistor is connected with the first end of the second capacitor; a second end of the second resistor, a second end of the fourth resistor, a second end of the first capacitor and a second end of the second capacitor are all grounded; the output end of the temperature detection module comprises a second end of the first resistor and a second end of the third resistor.
Optionally, the vibration detection module includes a spring-type vibration sensor, and an output end of the vibration detection module includes a first pin and a second pin of the spring-type vibration sensor.
Optionally, the heartbeat package module includes a heartbeat chip, the heartbeat chip has a first temperature detection input pin, a second temperature detection input pin, a first vibration detection input pin, a second vibration detection signal input pin and an output pin, the first temperature detection input pin of the heartbeat chip is connected to the second end of the first resistor, the second temperature detection input pin of the heartbeat chip is connected to the second end of the third resistor, the first vibration detection input pin of the heartbeat chip is connected to the first pin of the spring type vibration sensor, and the second vibration detection input pin of the heartbeat chip is connected to the second pin of the spring type vibration sensor; the temperature detection input end of the heartbeat package module comprises a first temperature detection input pin and a second temperature detection input pin of the heartbeat chip, the vibration detection input end of the heartbeat package module comprises a first vibration detection input pin and a second vibration detection input pin of the heartbeat chip, and the output pin of the heartbeat chip is the output end of the heartbeat package module.
Optionally, the control module includes a main control chip, an optocoupler, a fifth resistor, and a sixth resistor, the main control chip has an input pin and a vibration bucket control signal output pin, a first end of the fifth resistor is connected to the output pin of the heartbeat chip, and a second end of the fifth resistor is connected to a second pin of the optocoupler; a third pin of the optical coupler and a second end of the sixth resistor are respectively connected with an input pin of the main control chip, and a first pin of the optical coupler and a fourth pin of the optical coupler are both grounded; the vibration bucket control signal output pin of the main control chip is connected with the controlled end of the vibration bucket driving motor, the first end of the fifth resistor is the input end of the control module, and the vibration bucket control signal output pin of the main control chip is the output end of the control module.
Optionally, the vibration bucket working protection circuit further includes a voltage conversion module, the temperature detection module further has a power end, the vibration detection module further has a power end, the heartbeat package module further has a power end, the control module further has a power end, an input end of the voltage conversion module is connected with the power input end, and the power end of the temperature detection module, the power end of the vibration detection module, the power end of the heartbeat package module, and the power end of the control module are respectively connected with an output end of the voltage conversion module and are configured to output a second voltage after voltage conversion is performed on a first voltage accessed by the power input end.
Optionally, the voltage conversion module is any one or more of a rectification circuit, a filter circuit, a buck chopper circuit, a boost chopper circuit, a buck chopper circuit, and a linear voltage stabilizing circuit.
Optionally, the vibration bucket working protection circuit further comprises an indication module, the control module further has an indication signal output end, and an input end of the indication module is connected with an indication signal output end of the control module;
the control module is used for outputting a corresponding indication signal according to the first heartbeat packet signal or the second heartbeat packet signal;
and the indicating module is used for indicating the working state of the vibration bucket according to the indicating signal.
Optionally, the indication module is any one or more of an LED lamp, a buzzer, a loudspeaker and a display screen.
The invention also provides a concentrator comprising a vibrating bucket operation protection circuit as defined in any one of the preceding claims.
The invention provides a vibration bucket work protection circuit which is formed by arranging a temperature detection module, a vibration detection module, a heartbeat package module, a control module and the like. The temperature detection module is used for detecting the working temperature of the vibration bucket driving motor, the vibration detection module is used for detecting the vibration frequency of the vibration bucket driving motor, the heartbeat package module is used for outputting a first heartbeat package signal when the working temperature of the vibration bucket driving motor is determined to be in a preset temperature interval and the vibration frequency of the vibration bucket driving motor is determined to be in a preset frequency interval according to the temperature detection signal and the vibration detection signal, outputting a second heartbeat package signal when the working temperature of the vibration bucket driving motor is determined not to be in the preset temperature interval and/or the vibration frequency of the vibration bucket driving motor is determined not to be in the preset frequency interval, and the control module is used for outputting a second heartbeat package signal when the first heartbeat package signal is received and the frequency of the first heartbeat package signal is identified to be in the preset frequency interval according to the first heartbeat package signal or the second heartbeat package signal, controlling the vibrating hopper driving motor to keep a current running state; when the first heartbeat packet signal is received and the frequency of the first heartbeat packet signal is identified to be not in a preset frequency interval, controlling the vibration bucket driving motor to stop working; and controlling the vibration bucket driving motor to stop working when the second heartbeat packet signal is received. Thereby solved the technical problem that the vibrating hopper operational reliability of concentrator is low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to the structures shown in the drawings without creative efforts for those skilled in the art.
FIG. 1 is a schematic block diagram of a vibration bucket operation protection circuit according to the present invention;
fig. 2 is a schematic circuit diagram of an embodiment of the protection circuit for operation of a vibrating bucket.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of designing "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, an element defined as "a first" or "a second" can include at least one of the element either explicitly or implicitly. In addition, the technical solutions in the embodiments may be combined with each other, but must be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is no longer within the protection scope of the present invention.
In order to solve the technical problem of low working reliability of the vibrating hopper of the concentrating machine, the invention provides a working protection circuit of the vibrating hopper, which is suitable for the concentrating machine.
Referring to fig. 1, in an embodiment of the present invention, the working protection circuit for a vibrating bucket provided by the present invention includes a temperature detection module 10, a vibration detection module 20, a heartbeat packet module 30 and a control module 40, where the heartbeat packet module 30 has a temperature detection input end, a vibration detection input end and an output end, the temperature detection input end of the heartbeat packet module 30 is connected to the output end of the temperature detection module 10, the vibration detection input end of the heartbeat packet module 30 is connected to the output end of the vibration detection module 20, the input end of the control module 40 is connected to the output end of the heartbeat packet module 30, and the output end of the control module 40 is connected to a controlled end of a driving motor for the vibrating bucket.
The temperature detection module 10 is configured to detect a working temperature of the vibration bucket driving motor to obtain a temperature detection signal corresponding to the working temperature of the vibration bucket driving motor. The vibration detection module 20 is configured to detect a vibration frequency of the vibration bucket driving motor to obtain a vibration detection signal corresponding to the vibration frequency of the vibration bucket driving motor. The heartbeat package module 30 is configured to output a first heartbeat package signal when determining that the working temperature of the vibration bucket driving motor is within a preset temperature range and the vibration frequency of the vibration bucket driving motor is within a preset frequency range according to the temperature detection signal and the vibration detection signal, and output a second heartbeat package signal when determining that the working temperature of the vibration bucket driving motor is not within the preset temperature range and/or the vibration frequency of the vibration bucket driving motor is not within the preset frequency range. The control module 40 is configured to control the vibration bucket driving motor to keep a current operating state when the first heartbeat packet signal is received and the frequency of the first heartbeat packet signal is identified to be in a preset frequency interval according to the first heartbeat packet signal or the second heartbeat packet signal; when the first heartbeat packet signal is received and the frequency of the first heartbeat packet signal is identified to be not in a preset frequency interval, controlling the vibration bucket driving motor to stop working; and when receiving a second heartbeat packet signal, controlling the vibration bucket driving motor to stop working.
In the concentrating machine, the vibrating hopper is used for feeding raw ores into the concentrating machine, so that the phenomena of arching, blocking and bin sticking among the raw ores are prevented. In the working process of the vibration bucket driving motor, the working temperature of the vibration bucket driving motor is detected through the temperature detection module 10, a temperature detection signal is acquired to the heartbeat package module 30, meanwhile, the vibration frequency of the vibration bucket driving motor is detected through the vibration detection module 20, a vibration detection signal is acquired to the heartbeat package module 30, the heartbeat package module 30 compares the temperature detection signal and the vibration detection signal with a preset value, whether the vibration bucket driving motor works normally is analyzed, a corresponding heartbeat package signal is output to the control module 40, the control module 40 identifies whether the vibration bucket driving motor is matched and acquires the working state of the driving motor according to the corresponding heartbeat package signal, and a corresponding control signal of the vibration bucket driving motor is output to maintain the normal work of the vibration bucket driving motor or stop the vibration bucket driving motor.
The invention forms a vibration bucket working protection circuit by arranging the temperature detection module 10, the vibration detection module 20, the heartbeat package module 30, the control module 40 and the like. Temperature detection module 10 detects the operating temperature of vibration fill driving motor and acquires the temperature detect signal, vibration detection module 20 detects the vibration frequency of vibration fill driving motor and acquires the vibration detect signal, heartbeat package module 30 is used for according to temperature detect signal and vibration detect signal, judge whether vibration fill driving motor normally works, and output corresponding heartbeat package signal to control module 40, control module 40 is according to corresponding heartbeat package signal, whether discernment is the vibration fill driving motor of adaptation and acquires driving motor operating condition, and output corresponding vibration fill driving motor control signal, in order to maintain vibration fill driving motor normally to work or stop vibration fill driving motor work. Thereby solved the technical problem that the vibrating hopper operational reliability of concentrator is low.
Referring to fig. 2, in an embodiment of the present invention, the temperature detecting module 10 includes a first temperature sensor NTC1, a second temperature sensor NTC2, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a first capacitor C1 and a second capacitor C2, wherein a second pin of the first temperature sensor NTC1 and a first end of the first resistor R1 are respectively connected to a second end of the second resistor R2; a second pin of the second temperature sensor NTC2 and a first end of the third resistor R3 are respectively connected with a first end of the fourth resistor R4; a second end of the first resistor R1 is connected with a first end of the first capacitor C1; a second end of the third resistor R3 is connected with a first end of the second capacitor C2; the second terminal of the second resistor R2, the second terminal of the fourth resistor R4, the second terminal of the first capacitor C1, and the second terminal of the second capacitor C2 are all grounded. The second terminal of the first resistor R1 and the second terminal of the third resistor R3 form the output terminal of the temperature detecting module 40.
Among them, the NTC (Negative Temperature Coefficient) Temperature sensor is a thermistor, and as the Temperature rises, the resistance value thereof decreases in a specific curve according to the property of the resistance material. During the operation of the concentrating machine, the vibrating hopper is usually vibrated by two driving motors, when one group of the vibrating hopper driving motors starts to operate, the resistance value of the first temperature sensor NTC1 is changed along with the change of the operating temperature of the driving motors, because the NTC1 is connected with the second resistor R2 in series, the change of the resistance value of the NTC1 influences the change of the second resistor divided by the resistance value of the NTC1, the resistance value of the NTC1 and the temperature can be obtained by detecting the voltage on the R2, and the voltage on the R2 is output as a first temperature detection signal. Similarly, in the operation of the other group of driving motors, the voltage at R4 is output as a second temperature detection signal. The temperature of the vibration bucket driving motor can be detected by the first temperature sensor NTC1 and the second temperature sensor NTC2, and the sensitivity is high. Meanwhile, the device is small in encapsulation, simple in structure, small in occupied space and not prone to damage, and production cost and later maintenance cost are reduced.
Optionally, besides the NTC as the temperature sensor, a temperature sensor such as an infrared temperature sensor or a PTC temperature sensor may also be used, and in practical application, an appropriate speed sensor may be selected according to practical requirements, which is not limited herein.
Referring to fig. 2, in an embodiment of the invention, the vibration detection module 20 includes a spring-loaded vibration sensor U1, and the first leg and the second leg of the spring-loaded vibration sensor U1 constitute the output end of the vibration detection module.
Wherein, U1 is inside to have the spring, when a vibration fill driving motor vibrates, can extrude inside spring, and spring vibration sensor U1 can be through a high level signal of first foot external output at this moment, and through the quantity that detects high level signal, just can obtain driving motor's vibration frequency, and on the same way, when another driving motor vibrates and extrudes inside spring, U1 can be through a high level of second foot output. Through spring vibration sensor U1, can detect the vibration frequency of vibration fill driving motor, sensitivity is higher. Meanwhile, the device is simple in structure and small in occupied space, and production cost and later maintenance cost are reduced.
Optionally, besides the spring-type vibration sensor for measuring the vibration frequency, a vibration sensor such as an inductive vibration sensor or a piezoelectric vibration sensor may be used, and in actual application, an appropriate speed sensor may be selected according to actual requirements, which is not limited herein.
Referring to fig. 2, in an embodiment of the present invention, the heartbeat packet module 30 includes a heartbeat chip U2, the heartbeat chip U2 has a first temperature detection input pin ZD-WD 1, a second temperature detection input pin ZD-WD 2, a first vibration detection input pin ZD1, a second vibration detection signal input pin ZD2 and an output pin XTB, the first temperature detection input pin ZD-WD 1 of the heartbeat chip is connected to a second end of the first resistor R1, the second temperature detection input pin ZD-WD 2 of the heartbeat chip is connected to a second end of the third resistor R3, the first vibration detection input pin ZD1 of the heartbeat chip is connected to a first pin of the spring-type vibration sensor U1, and the second spring-type vibration detection input pin ZD2 of the heartbeat chip is connected to a second pin of the spring-type vibration sensor U1; the first temperature detection input pin ZDD-WD1 and the second temperature detection input pin ZDD-WD2 of the heartbeat chip form a temperature detection input end of the heartbeat packet module, the first vibration detection input pin ZD1 and the second vibration detection input pin ZD2 of the heartbeat chip form a vibration detection input end of the heartbeat packet module, and the output pin XTB of the heartbeat chip is an output end of the heartbeat packet module.
The heartbeat package is generally used for maintaining the link, when the heartbeat chip U2 detects voltages on R2 and R4 through ZDD-WD1 and ZDD-WD2, the voltages are compared with preset values, the preset values are set for customer requirements, if the preset values are not in a preset value interval, the working temperature can be judged to be abnormal, and if the preset values are in a preset value interval, the working temperature can be judged to be normal. Meanwhile, the heartbeat chip acquires high level signals through ZD1 and ZD2, if a plurality of stable high level signals can be received simultaneously, and after analysis, the frequency of the first vibration detection signal is consistent with the second vibration detection signal, and the vibration hopper driving motor is judged to be working normally, and if the stable excessive high level signals cannot be received simultaneously or the frequency of the first vibration detection signal is inconsistent with the frequency of the second vibration detection signal, the vibration hopper driving motor is judged to be working abnormally. When the working temperature is abnormal and/or the vibration bucket driving motor works abnormally, the output pin XTB of the heartbeat chip U2 is in a high resistance state. When the working temperature is normal and the vibration bucket driving motor works normally, the heartbeat chip U2 outputs a first heartbeat packet signal through the output pin XTB, the first heartbeat packet signal is a pulse signal, and the frequency of the pulse signal is the vibration frequency of the vibration bucket driving motor. Through heartbeat package module 30, can realize real-time detection to the strong compatibility of flexibility is high, can be compatible host computer from top to bottom, through heartbeat chip U2, can be when receiving temperature detected signal and vibration detected signal, the heartbeat package signal that the very fast reaction output corresponds, and sensitivity is higher, and the integrated level is high, circuit structure is simple, and the cost is lower.
Alternatively, the ZD1, ZD2, ZDD-WD1 and ZDD-WD2 pins of the heartbeat chip U2 may be analog pins or digital pins.
Optionally, the heartbeat chip U2 is an MCU (micro controller Unit) in the present application, and may also use a DSP (Digital Signal processor), an FpGA (Field Programmable Gate Array), and in practical application, an appropriate chip may be selected according to actual requirements, which is not limited herein.
Referring to fig. 2, in an embodiment of the present invention, the control module 40 includes a main control chip U3, an optical coupler U4, a fifth resistor R5, and a sixth resistor R6, the main control chip U3 has an input pin ZDD-XTB and a vibration bucket control signal output pin ZDD-KZ, a first end of the fifth resistor R5 is connected to an output pin XTB of the heartbeat chip U2, and a second end of the fifth resistor R5 is connected to a second pin of the optical coupler U4; a third pin of the optical coupler U4 and a second end of the sixth resistor R6 are respectively connected with an input pin ZDD-XTB of the main control chip U3, and a first pin of the optical coupler U4 and a fourth pin of the optical coupler U4 are both grounded; a vibration hopper control signal output pin ZDD-KZ of the main control chip U3 is connected with a controlled end of a vibration hopper driving motor, a first end of a fifth resistor R5 is an input end of the control module 40, and a vibration hopper control signal output pin ZDD-KZ of the main control chip U3 is an output end of the control module.
After the control module 40 receives the first heartbeat packet signal, according to the conduction principle of the optocoupler, when the voltage of the second pin is higher than that of the first pin, the third pin is conducted with the fourth pin. When the heartbeat module 30 outputs the first heartbeat packet signal, that is, the heartbeat chip U2 outputs the pulse signal through the XTB pin, the high level signal thereof pulls up the voltage of the second pin through the R5, and the on condition is satisfied. An input pin ZDD-XTB of the main control chip U3 is changed into a ground state from a state of being pulled to V2 by R6, the main control chip U3 acquires a low level signal through the ZDD-XTB, so that the first heartbeat packet signal level is inverted and then input into the main control chip U3 to obtain the working frequency of the vibration bucket driving motor, and the working frequency is compared with a preset value which is set according to customer requirements so as to identify whether the vibration bucket driving motor meets the specification or not and keep the current working state of the vibration bucket driving motor. When the XTB pin of the heartbeat chip U2 is pulled up, the ZDD-XTB of the main control chip U3 is pulled up by R6, a high level state is kept, the vibration bucket driving motor is judged to be abnormal, and the vibration bucket driving motor is controlled to stop. Through main control chip U3, can be convenient for control the vibration fill driving motor, improved the integrated nature of circuit, simple structure, the cost is lower.
Optionally, the ZDD-XTB and ZDD-KZ pins of the master control chip U3 may be analog pins or digital pins.
Optionally, the main control chip U3 is an MCU (micro controller Unit), and besides, a DSP (Digital Signal processor) and an FpGA (Field Programmable Gate Array) may be used, and in actual application, an appropriate chip may be selected according to actual requirements, which is not limited herein.
Referring to fig. 2, in an embodiment of the present invention, the vibration bucket working protection circuit further includes a voltage conversion module, the temperature detection module 10 further has a power supply end, the vibration detection module 20 further has a power supply end, the heartbeat package module 30 further has a power supply end, and the control module 40 further has a power supply end, an input end of the voltage conversion module is connected to the power supply input end, the power supply end of the temperature detection module 10, the power supply end of the vibration detection module 20, the power supply end of the heartbeat package module 30, and the power supply end of the control module 40 are respectively connected to an output end of the voltage conversion module, and are configured to output a second voltage V2 after performing voltage conversion on a first voltage V1 connected to the power supply input end. The first pin of the first temperature sensor NTC1 is connected with V2, the second pin of the second temperature sensor NTC2 is connected with V2, the third pin and the fourth pin of the spring type vibration sensor U1 are respectively connected with a second voltage V2, the power pin VCC of the heartbeat chip U2 is connected with the second voltage V2, the power pin VDD of the main control chip U3 is connected with the second voltage V2, and the first end of the sixth resistor is connected with the second voltage V2. The voltage conversion module is any one or more of a rectification circuit, a filter circuit, a buck chopper circuit, a boost chopper circuit, a buck chopper circuit and a linear voltage stabilizing circuit.
The first temperature sensor NTC1, the second temperature sensor NTC2, the spring type vibration sensor U1, the heartbeat chip U2 and the main control chip U3 are used as precision chips, the integration level is high, the package is small, and the borne voltage is often low. Through the voltage conversion module, chips or electronic elements which are connected with different power input ends and different power supply voltage requirements can be compatible, and the compatibility and the ductility of the circuit are improved.
Referring to fig. 2, in an embodiment of the present invention, the vibration bucket working protection circuit further includes an indication module, and the control module 40 further has an indication signal output end, and an input end of the indication module is connected to the indication signal output end of the control module 40. The master control chip U3 further has an indication signal output pin IND, and the indication signal output pin IDN of the master control chip U3 is connected to the controlled terminal INS of the indication module 40. The indicating module is any one or more of an LED lamp, a buzzer, a loudspeaker and a display screen.
The control module is used for outputting a corresponding indication signal according to the first heartbeat packet signal or the second heartbeat packet signal. And the indicating module is used for indicating the working state of the vibrating hopper according to the indicating signal. Through indicating module, can realize instructing vibration fill driving motor's operating condition for the user, convenience of customers observes and detects in real time to in time report to the police when breaking down, improved the convenience.
The working principle of the present invention is explained below with reference to the above module contents and fig. 2:
in the working process of the concentrating machine, the first temperature sensor NTC1, the second temperature sensor NTC2, the spring type vibration sensor U1, the heartbeat chip U2 and the main control chip U3 are used as precise chips, the integration level is high, the encapsulation is small, the borne voltage is low, and the first voltage V1 connected to the power input end needs to be subjected to voltage reduction conversion through the voltage conversion module and then the second voltage V2 is output to be supplied to the chips to serve as driving voltage. The resistance values of the NTC1 and the NTC2 change along with the working temperature of the two groups of vibration motors, the heartbeat chip U2 detects the voltages on the R2 and the R4 through the ZDD-WD1 pin and the ZDD-WD2 pin, and whether the working temperature of the NTC1 and the NTC2 are in a preset temperature range can be confirmed through comparison with a preset value. Meanwhile, the heartbeat chip U2 acquires a plurality of high level signals output by the first pin and the second pin of the spring sensor U1 through the pins ZD1 and ZD2, and the vibration frequency of the two groups of vibration bucket driving motors can be obtained through the number of the high level signals read from the chip.
When the working temperature is abnormal and/or the vibration bucket driving motor works abnormally, the output pin XTB of the heartbeat chip U2 is in a high-resistance state. Because XTB is in the high impedance state, so opto-coupler U4 does not satisfy the conduction condition, the ZDD-XTB foot of U3 is pulled up to second voltage V2 by resistance R6 all the time, U3 continuously receives the high level signal through ZDD-XTB, consequently judges the work of vibration fill driving motor abnormal, through ZDD-KZ output control signal with control vibration fill motor shutdown, and through IND output instruction signal with control instruction module with the warning suggestion vibration fill driving motor work abnormal to the user.
When the working temperature is normal and the vibration bucket driving motor works normally, the heartbeat chip U2 outputs a first heartbeat packet signal through the output pin XTB, the first heartbeat packet signal is a pulse signal, and the frequency of the pulse signal is the vibration frequency of the vibration bucket driving motor. Pulse signals are subjected to level inversion after optical coupling and input into the main control chip U3 through ZDD-XTB, the main control chip U3 obtains the working frequency of the vibration bucket driving motor, whether the vibration bucket driving motor meets the specification or not is identified through comparison with a preset value, if the driving motor does not meet the preset specification, the U3 controls the vibration bucket driving motor to stop through ZDD-KZ and outputs an indication signal through IND to prompt a user that the specification of the motor is wrong. If the driving motor meets the preset specification, the U3 controls the vibrating bucket driving motor to keep the current working state through ZDD-KZ, and outputs an indication signal through IND to display that the vibrating bucket driving motor is in normal operation.
In summary, the technical problem of low working reliability of the vibrating hopper of the concentrating machine is solved through the temperature detection module 10, the vibration detection module 20, the heartbeat packet module 30, the control module 40, the voltage conversion module and the indication module. Besides, more types of electronic components and chips can be compatible through the voltage conversion module, and compatibility and ductility are improved. Meanwhile, the convenience of use of a user is improved through the indicating module, and visual operation and use are facilitated.
The invention also provides a concentrator comprising a vibrating bucket operation protection circuit, the specific circuit of which is as described above with reference to the embodiments.
It should be noted that, since the concentrator of the present invention includes all the embodiments of the above-mentioned vibration bucket working protection circuit, the concentrator of the present invention has all the advantages of the above-mentioned vibration bucket working protection circuit, and the details are not described herein again.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. A vibrating hopper operation protection circuit for a concentrator, the vibrating hopper operation protection circuit comprising:
the temperature detection module is used for detecting the working temperature of the vibration bucket driving motor so as to obtain a temperature detection signal corresponding to the working temperature of the vibration bucket driving motor;
the vibration detection module is used for detecting the vibration frequency of the vibration hopper driving motor so as to obtain a vibration detection signal corresponding to the vibration frequency of the vibration hopper driving motor;
the heartbeat package module is provided with a temperature detection input end, a vibration detection input end and an output end, the temperature detection input end of the heartbeat package module is connected with the output end of the temperature detection module, and the vibration detection input end of the heartbeat package module is connected with the output end of the vibration detection module;
the input end of the control module is connected with the output end of the heartbeat package module, and the output end of the control module is connected with the controlled end of the vibrating bucket driving motor;
the vibration detection module is used for detecting the vibration frequencies of the two vibration bucket driving motors so as to obtain a first vibration detection signal and a second vibration detection signal corresponding to the vibration frequencies of the vibration bucket driving motors;
the temperature detection module is used for detecting the working temperatures of the two vibration bucket driving motors so as to obtain a first temperature detection signal and a second temperature detection signal corresponding to the working temperatures of the vibration bucket driving motors;
the heartbeat package module is used for determining that a plurality of stable high-level signals can be received simultaneously according to a first vibration detection signal, a second vibration detection signal, a first temperature detection signal and a second temperature detection signal, the frequency of the first vibration detection signal is the same as that of the second vibration detection signal, and when the temperatures of the two vibration bucket driving motors are in a preset temperature range, outputting a first heartbeat package signal, wherein the frequency of the first heartbeat package signal is the same as that of the first vibration detection signal and that of the second vibration detection signal; when determining that a plurality of stable high-level signals cannot be received at the same time and/or the working temperature is not in a preset temperature interval and/or the frequency of the first vibration detection signal is inconsistent with that of the second vibration detection signal, outputting a second heartbeat packet signal;
the control module is used for controlling the two vibrating bucket driving motors to keep a current running state when the first heartbeat packet signal is received and the frequency of the first heartbeat packet signal is determined to be a preset value; when the first heartbeat packet signal is received and the frequency of the first heartbeat packet signal is determined not to be a preset value, controlling the two vibration bucket driving motors to stop working; when the second heartbeat packet signal is received, controlling the two vibration bucket driving motors to stop working;
the temperature detection module comprises a first temperature sensor, a second temperature sensor, a first resistor, a second resistor, a third resistor, a fourth resistor, a first capacitor and a second capacitor, wherein a second pin of the first temperature sensor and a first end of the first resistor are respectively connected with a second end of the second resistor; a second pin of the second temperature sensor and a first end of the third resistor are respectively connected with a first end of a fourth resistor; the second end of the first resistor is connected with the first end of the first capacitor; the second end of the third resistor is connected with the first end of the second capacitor; a second end of the second resistor, a second end of the fourth resistor, a second end of the first capacitor and a second end of the second capacitor are all grounded; the output end of the temperature detection module comprises a second end of the first resistor and a second end of the third resistor;
the vibration detection module comprises a spring type vibration sensor, and the output end of the vibration detection module comprises a first pin and a second pin of the spring type vibration sensor.
2. The vibrating bucket working protection circuit of claim 1, wherein the heartbeat package module comprises a heartbeat chip, the heartbeat chip is provided with a first temperature detection input pin, a second temperature detection input pin, a first vibration detection input pin, a second vibration detection signal input pin and an output pin, the first temperature detection input pin of the heartbeat chip is connected with the second end of the first resistor, the second temperature detection input pin of the heartbeat chip is connected with the second end of the third resistor, the first vibration detection input pin of the heartbeat chip is connected with the first pin of the spring type vibration sensor, and the second vibration detection input pin of the heartbeat chip is connected with the second pin of the spring type vibration sensor; the temperature detection input end of the heartbeat package module comprises a first temperature detection input pin and a second temperature detection input pin of the heartbeat chip, the vibration detection input end of the heartbeat package module comprises a first vibration detection input pin and a second vibration detection input pin of the heartbeat chip, and the output pin of the heartbeat chip is the output end of the heartbeat package module.
3. The vibrating bucket working protection circuit as claimed in claim 2, wherein the control module comprises a main control chip, an optical coupler, a fifth resistor and a sixth resistor, the main control chip is provided with an input pin and a vibrating bucket control signal output pin, a first end of the fifth resistor is connected with the output pin of the heartbeat chip, and a second end of the fifth resistor is connected with a second pin of the optical coupler; a third pin of the optical coupler and a second end of the sixth resistor are respectively connected with an input pin of the main control chip, and a first pin of the optical coupler and a fourth pin of the optical coupler are both grounded; the vibration bucket control signal output pin of the main control chip is connected with the controlled end of the vibration bucket driving motor, the first end of the fifth resistor is the input end of the control module, and the vibration bucket control signal output pin of the main control chip is the output end of the control module.
4. The circuit according to claim 1, further comprising a voltage conversion module, wherein the temperature detection module further comprises a power supply terminal, the vibration detection module further comprises a power supply terminal, the heartbeat package module further comprises a power supply terminal, and the control module further comprises a power supply terminal, wherein an input terminal of the voltage conversion module is connected to the power supply input terminal, and the power supply terminal of the temperature detection module, the power supply terminal of the vibration detection module, the power supply terminal of the heartbeat package module, and the power supply terminal of the control module are respectively connected to an output terminal of the voltage conversion module, and are configured to convert a first voltage received at the power supply input terminal into a second voltage and output the second voltage.
5. The vibration bucket working protection circuit of claim 4, wherein the voltage conversion module is any one or more of a rectification circuit, a filter circuit, a buck chopper circuit, a boost chopper circuit, a buck-boost chopper circuit and a linear voltage stabilizing circuit.
6. The vibrating bucket working protection circuit of claim 1, further comprising an indication module, wherein the control module further has an indication signal output terminal, and an input terminal of the indication module is connected with the indication signal output terminal of the control module;
the control module is used for outputting a corresponding indication signal according to the first heartbeat packet signal or the second heartbeat packet signal;
and the indicating module is used for indicating the working state of the vibration bucket according to the indicating signal.
7. The vibrating bucket working protection circuit as claimed in claim 6, wherein the indication module is any one or more of an LED lamp, a buzzer, a loudspeaker and a display screen.
8. A concentrator, characterized in that the concentrator includes a vibrating bucket operational protection circuit as claimed in any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011532789.7A CN112865020B (en) | 2020-12-22 | 2020-12-22 | Vibrating bucket work protection circuit and concentrating machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011532789.7A CN112865020B (en) | 2020-12-22 | 2020-12-22 | Vibrating bucket work protection circuit and concentrating machine |
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| CN112865020B true CN112865020B (en) | 2021-11-19 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105508136A (en) * | 2015-12-28 | 2016-04-20 | 北京天诚同创电气有限公司 | Variable pitch control device and method for wind generating set and variable pitch system |
| CN108664051A (en) * | 2017-03-28 | 2018-10-16 | 杭州海康威视数字技术股份有限公司 | Maintaining method, device and the holder of horizontal stage electric machine |
| CN111609882A (en) * | 2020-05-15 | 2020-09-01 | 中国矿业大学 | Intelligent fault diagnosis system and method for large-sized combined dry separator |
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2020
- 2020-12-22 CN CN202011532789.7A patent/CN112865020B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508136A (en) * | 2015-12-28 | 2016-04-20 | 北京天诚同创电气有限公司 | Variable pitch control device and method for wind generating set and variable pitch system |
| CN108664051A (en) * | 2017-03-28 | 2018-10-16 | 杭州海康威视数字技术股份有限公司 | Maintaining method, device and the holder of horizontal stage electric machine |
| CN111609882A (en) * | 2020-05-15 | 2020-09-01 | 中国矿业大学 | Intelligent fault diagnosis system and method for large-sized combined dry separator |
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Denomination of invention: Working protection circuit of vibrating bucket and concentrator Effective date of registration: 20220705 Granted publication date: 20211119 Pledgee: Ganzhou Branch of Bank of Communications Co.,Ltd. Pledgor: GANZHOU GOOD FRIEND TECHNOLOGY Co.,Ltd. Registration number: Y2022980009878 |
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Granted publication date: 20211119 Pledgee: Ganzhou Branch of Bank of Communications Co.,Ltd. Pledgor: GANZHOU GOOD FRIEND TECHNOLOGY Co.,Ltd. Registration number: Y2022980009878 |