CN210780609U

CN210780609U - CST speed regulation control signal generation device

Info

Publication number: CN210780609U
Application number: CN201921968299.4U
Authority: CN
Inventors: 魏良跃; 范守俊; 邹德明; 杨树明; 张祥新; 李伟平; 赵成栋; 鲍元勃
Original assignee: Yanzhou Coal Mining Co Ltd
Current assignee: Yanzhou Coal Mining Co Ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-06-16
Anticipated expiration: 2029-11-14

Abstract

The utility model provides a CST speed regulation control signal generating device, the anode of the power supply is connected with a resistor R1, a triode T1, a triode T2 and a triode T3; the resistor R1 and the resistor R2 are connected with the capacitor C, the diode D1 is connected with the capacitor C in parallel, the triode T1 is connected with the resistor R1 and the triode T2, the triode T2 is connected with the diode D2, the diode D3 and the resistor R3, and the diode D2 and the diode D3 are respectively connected with a motor; the resistor R3 is connected with the triode T3 and the diode D4, the triode T3 is connected with the diode D5 and the diode D6, and the diode D5 and the diode D6 are respectively connected with a motor; and the resistor R2 and the four motors are connected with the negative pole of the power supply. The current is controlled by D1 and D4, and R1, R2 and C control signals are controlled from 4mA to 18mA to control the motor to start and drive CST, so that the phenomenon that CST cannot work continuously due to abnormal signal feedback is avoided, and the production efficiency is improved.

Description

CST speed regulation control signal generation device

Technical Field

The utility model relates to a mining equipment technical field especially relates to a CST speed governing control signal generates device.

Background

The speed regulator of CST (controllable start transmission controller) has a speed regulating drive signal. The speed regulation driving signal is given according to the completion of the starting of the motor of the CST, and the size of the given driving signal is determined according to the feedback signal, so that the CST is driven to load at a constant speed.

However, sometimes the feedback signal is abnormal, so that the CST cannot normally obtain the driving signal and cannot complete the start-up speed regulation. The occurrence of a fault sometimes cannot be handled in a short time, which affects the production efficiency. In order to improve the production efficiency, a CST speed regulation control signal generation device is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a CST speed governing control signal generates device to solve because the technical problem that production efficiency is low that CST feedback signal caused unusually.

In order to solve the technical problem, the embodiment of the utility model discloses following technical scheme:

a CST speed regulation control signal generation device comprises a power supply, wherein the positive electrode of the power supply is electrically connected with the first end of a resistor R1, a triode T1, a triode T2 and the collector of a triode T3 respectively; a second end of the resistor R1 and a first end of the resistor R2 are respectively connected with a capacitor C, a diode D1 is connected with the capacitor C in parallel, a second end of the resistor R1 is also electrically connected with a base electrode of a triode T1, an emitter electrode of a triode T1 is electrically connected with a base electrode of a triode T2, an emitter electrode of a triode T2 is respectively electrically connected with an anode of a diode D2, a cathode of a diode D3 and a first end of the resistor R3, a cathode of a diode D2 and a first end of the motor M1 are respectively connected with a resistor R4, and a cathode of a diode D3 and a first end of the motor M2 are respectively connected with a resistor R5; a second end of the resistor R3 is respectively and electrically connected with a base electrode of the triode T3 and an anode of the diode D4, an emitter electrode of the triode T3 is respectively and electrically connected with an anode of the diode D5 and an anode of the diode D6, a cathode of the diode D5 and a first end of the motor M3 are respectively connected with the resistor R6, and a cathode of the diode D6 and a first end of the motor M4 are respectively connected with the resistor R7; the second end of the resistor R2, the second end of the motor M1, the second end of the motor M2, the second end of the motor M3 and the second end of the motor M4 are respectively electrically connected with the negative pole of the power supply; the resistor R6 and the resistor R7 are variable resistors.

Optionally, the resistor R6 and the resistor R7 each include two parallel resistors, the resistor R6 is a parallel resistor of the resistor R8 and the resistor R9, the resistor R7 is a parallel resistor of the resistor R10 and the resistor R11, and the resistor R9 and the resistor R11 are each a variable resistor.

Optionally, the resistances of the resistor R8 and the resistor R10 are both 2K Ω, the resistances of the resistor R3, the resistor R4, and the resistor R5 are all 1K Ω, and the maximum resistances of the resistor R9 and the resistor R11 are both 2K Ω.

Optionally, the transistor T1, the transistor T2, and the transistor T3 are all NPN transistors.

Optionally, both diode D1 and diode D4 are zener diodes.

Has the advantages that: the utility model provides a CST speed regulation control signal generation device, which comprises a power supply, wherein the anode of the power supply is respectively electrically connected with the first end of a resistor R1, a triode T1, a triode T2 and the collector of a triode T3; a second end of the resistor R1 and a first end of the resistor R2 are respectively connected with a capacitor C, a diode D1 is connected with the capacitor C in parallel, a second end of the resistor R1 is also electrically connected with a base electrode of a triode T1, an emitter electrode of a triode T1 is electrically connected with a base electrode of a triode T2, an emitter electrode of a triode T2 is respectively electrically connected with an anode of a diode D2, a cathode of a diode D3 and a first end of the resistor R3, a cathode of a diode D2 and a first end of the motor M1 are respectively connected with a resistor R4, and a cathode of a diode D3 and a first end of the motor M2 are respectively connected with a resistor R5; a second end of the resistor R3 is respectively and electrically connected with a base electrode of the triode T3 and an anode of the diode D4, an emitter electrode of the triode T3 is respectively and electrically connected with an anode of the diode D5 and an anode of the diode D6, a cathode of the diode D5 and a first end of the motor M3 are respectively connected with the resistor R6, and a cathode of the diode D6 and a first end of the motor M4 are respectively connected with the resistor R7; the second end of the resistor R2, the second end of the motor M1, the second end of the motor M2, the second end of the motor M3 and the second end of the motor M4 are respectively electrically connected with the negative pole of the power supply; the resistor R6 and the resistor R7 are variable resistors. The utility model discloses in, diode D1 and D4 control output current signal size respectively, and resistance R1, resistance R2 and electric capacity C control signal follow 4mA to 18 mA's output time. Since the motors M1 and M2 control the main driving roller, the loading current is 18mA, and the motors M3 and M4 drive the current to adjust the resistor R6 and the resistor R7 according to the load condition. After the motor is started, the PLC outputs a starting signal, so that the device can generate four paths of 4-18mA signals to respectively drive four CSTs. The signal is about 3 minutes from 4mA to 18mA (the starting time is regulated by R1, R2 and C), different change driving signals correspond to corresponding rotating speeds, and the change of 4-18mA corresponds to the belt being slow to fast. When reaching 18mA, the belt conveyor can run at full speed. The utility model discloses in, through diode D1 and D4 control output current signal size, resistance R1, resistance R2 and electric capacity C control signal are from 4mA to 18 mA's output time, and through control resistance R4, resistance R5, resistance R6 and the start of resistance R7 driving motor, make the device produce four ways 4 ~ 18mA signals, drive four CSTs respectively, the unable continuation work of CST of having avoided causing because of the signal feedback in the CST is unusual, and the production efficiency is improved.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a circuit diagram of a CST speed control signal generating device provided by the utility model.

Detailed Description

Referring to fig. 1, in order to provide a circuit diagram of a CST speed regulation control signal generation apparatus of the present invention, it can be known that the present invention provides a CST speed regulation control signal generation apparatus, which includes a power supply, an anode of the power supply is electrically connected with a first end of a resistor R1, a collector of a transistor T1, a transistor T2, and a collector of a transistor T3, respectively; a second end of the resistor R1 and a first end of the resistor R2 are respectively connected with a capacitor C, a diode D1 is connected with the capacitor C in parallel, a second end of the resistor R1 is also electrically connected with a base electrode of a triode T1, an emitter electrode of a triode T1 is electrically connected with a base electrode of a triode T2, an emitter electrode of a triode T2 is respectively electrically connected with an anode of a diode D2, a cathode of a diode D3 and a first end of the resistor R3, a cathode of a diode D2 and a first end of the motor M1 are respectively connected with a resistor R4, and a cathode of a diode D3 and a first end of the motor M2 are respectively connected with a resistor R5; a second end of the resistor R3 is respectively and electrically connected with a base electrode of the triode T3 and an anode of the diode D4, an emitter electrode of the triode T3 is respectively and electrically connected with an anode of the diode D5 and an anode of the diode D6, a cathode of the diode D5 and a first end of the motor M3 are respectively connected with the resistor R6, and a cathode of the diode D6 and a first end of the motor M4 are respectively connected with the resistor R7; the second end of the resistor R2, the second end of the motor M1, the second end of the motor M2, the second end of the motor M3 and the second end of the motor M4 are respectively electrically connected with the negative pole of the power supply; the resistor R6 and the resistor R7 are variable resistors. The triode T1, the triode T2 and the triode T3 are all NPN; the diode D1 and the diode D4 are both zener diodes. The resistor R1, the diode D1 and the triode T1 form a first series voltage stabilizing circuit, after the first series voltage stabilizing circuit, the voltage value of the emitter of the triode T1 is reduced from 24V to a voltage value smaller than the voltage 20V of the diode D1, and after the first series voltage stabilizing circuit passes through the diode D2 and the resistor R4, the current reaching the motor M1 becomes 4-18 mA. Similarly, after passing through diode D3 and resistor R5, the current to motor M2 becomes 4-18 mA. The resistor R3, the diode D3 and the triode T3 form a second series voltage stabilizing circuit, after the second series voltage stabilizing circuit, the voltage value of the emitter of the triode T3 is reduced to be less than 12V, and the current reaching the motor M3 is changed into 4-13mA after passing through the diode D5 and the resistor R6. Similarly, after passing through diode D6 and resistor R7, the current to motor M4 becomes 4-13 mA. The utility model discloses in, diode D1 and D4 control output current signal size respectively, and resistance R1, resistance R2 and electric capacity C control signal follow 4mA to 18 mA's output time. Since the motors M1 and M2 control the main driving roller, the loading current is 18mA, and the motors M3 and M4 drive the current to adjust the resistor R6 and the resistor R7 according to the load condition. After the motor is started, the PLC outputs a starting signal, so that the device can generate four paths of 4-18mA signals to respectively drive four CSTs. The signal is about 3 minutes from 4mA to 18mA (the starting time is regulated by R1, R2 and C), different change driving signals correspond to corresponding rotating speeds, and the change of 4-18mA corresponds to the belt being slow to fast. When reaching 18mA, the belt conveyor can run at full speed. The utility model discloses in, through diode D1 and D4 control output current signal size, resistance R1, resistance R2 and electric capacity C control signal are from 4mA to 18 mA's output time, and through control resistance R4, resistance R5, resistance R6 and the start of resistance R7 driving motor, make the device produce four ways 4 ~ 18mA signals, drive four CSTs respectively, the unable continuation work of CST of having avoided causing because of the signal feedback in the CST is unusual, and the production efficiency is improved.

In order to drive different CST, in this embodiment, the resistor R6 and the resistor R7 each include two parallel resistors, the resistor R6 is a parallel resistor of the resistor R8 and the resistor R9, the resistor R7 is a parallel resistor of the resistor R10 and the resistor R11, and the resistor R9 and the resistor R11 are both variable resistors. The loading current of the motor M3 and the loading current of the motor M4 are 13mA, and the resistance values of the resistor R6 and the resistor R7 need to be adjusted according to the magnitude of the driving current. Because the resistor R9 and the resistor R11 are variable resistors, after the resistor R9 and the resistor R8 are connected in parallel, and after the resistor R10 and the resistor R11 are connected in parallel, the resistance of the resistor R6 is also variable, and the resistance of the resistor R7 is also variable, the magnitude of the driving current is controlled by controlling the resistor R6 and the resistor R7, and the corresponding CST can be driven. Because the loading current 18mA of the motor M1 and the motor M2 and the loading current 13mA of the motor M3 and the motor M4 are used for normally driving the motor M3 and the motor M4 to start, in this embodiment, the resistances of the resistor R8 and the resistor R10 are both 2K Ω, the resistances of the resistor R3, the resistor R4 and the resistor R5 are all 1K Ω, and the maximum resistances of the resistor R9 and the resistor R11 are both 2K Ω. The magnitude of the driving current can be controlled according to the resistor R6 and the resistor R7.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A CST speed regulation control signal generation device is characterized by comprising a power supply, wherein the positive electrode of the power supply is electrically connected with the first end of a resistor R1, a triode T1, a triode T2 and the collector electrode of a triode T3 respectively;

a second end of the resistor R1 and a first end of the resistor R2 are respectively connected with a capacitor C, a diode D1 is connected with the capacitor C in parallel, a second end of the resistor R1 is further electrically connected with a base of the triode T1, an emitter of the triode T1 is electrically connected with a base of the triode T2, an emitter of the triode T2 is respectively electrically connected with an anode of the diode D2, a cathode of the diode D3 and a first end of the resistor R3, a cathode of the diode D2 and a first end of the motor M1 are respectively connected with a resistor R4, and a cathode of the diode D3 and a first end of the motor M2 are respectively connected with a resistor R5;

a second end of the resistor R3 is respectively and electrically connected with a base of a triode T3 and an anode of a diode D4, an emitter of the triode T3 is respectively and electrically connected with an anode of a diode D5 and an anode of a diode D6, a cathode of the diode D5 and a first end of the motor M3 are respectively connected with the resistor R6, and a cathode of the diode D6 and a first end of the motor M4 are respectively connected with the resistor R7;

the second end of the resistor R2, the second end of the motor M1, the second end of the motor M2, the second end of the motor M3 and the second end of the motor M4 are electrically connected with the negative pole of the power supply respectively;

the resistor R6 and the resistor R7 are both variable resistors.

2. The signal generating apparatus according to claim 1, wherein the resistor R6 and the resistor R7 each include two parallel resistors, the resistor R6 is a parallel resistor of a resistor R8 and a resistor R9, the resistor R7 is a parallel resistor of a resistor R10 and a resistor R11, and the resistor R9 and the resistor R11 are each a variable resistor.

3. The signal generating apparatus as claimed in claim 1, wherein the resistances of the resistor R8 and the resistor R10 are 2K Ω, the resistances of the resistor R3, the resistor R4 and the resistor R5 are 1K Ω, and the maximum resistances of the resistor R9 and the resistor R11 are 2K Ω.

4. The signal generating apparatus as claimed in claim 1, wherein the transistor T1, the transistor T2, and the transistor T3 are all NPN.

5. The signal generating apparatus of claim 1, wherein the diode D1 and the diode D4 are both zener diodes.