CN220160202U - Mining mill drives control system slowly - Google Patents
Mining mill drives control system slowly Download PDFInfo
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- CN220160202U CN220160202U CN202321150241.5U CN202321150241U CN220160202U CN 220160202 U CN220160202 U CN 220160202U CN 202321150241 U CN202321150241 U CN 202321150241U CN 220160202 U CN220160202 U CN 220160202U
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- 238000005065 mining Methods 0.000 title claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims description 43
- 239000003921 oil Substances 0.000 claims description 28
- 239000010720 hydraulic oil Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 6
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- 238000005485 electric heating Methods 0.000 description 1
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
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Abstract
A control system of a mining mill slow-drive comprises a main loop of a slow-drive motor, wherein a three-phase power inlet wire is connected to the motor through QM1 and a contactor KM1, and the three-phase sequence is U, V, W to control the slow-drive motor to rotate positively; the three-phase power inlet wire is connected to the motor through the QM1 and the contactor KM2, and the three-phase sequence is W, V, U, so that the reverse rotation of the slow-drive motor, the main loop of the clutch hydraulic motor, the main loop of the brake motor and the main loop of the heating belt of the slow-drive motor are controlled; besides the normal forward and reverse rotation control function of the slow drive, the automatic release and engagement function is realized, the manual push-pull is avoided, the brake is released under the condition of slow drive latch, and the grinding machine automatically finds the balance position, so that the slow drive clutch is smoothly released, and the automatic release and engagement device is safe, simple and convenient and favorable for operators to master.
Description
Technical Field
The utility model relates to a control system of mining machinery equipment, in particular to a slow-driving control system of a mining mill.
Background
The mill is core equipment of a concentrating mill, and whether the mill runs normally or not is related to annual treatment capacity, so that the completion of production indexes of the whole ore enterprise is influenced. The slow driving is an important driving device for turning, overhauling and installing a lining plate before starting the mill, the existing slow driving is manually separated and meshed, and before separation, the mill cylinder is not at the balance position, so that teeth are clamped, when the teeth are separated, teeth can be smoothly separated after the balance position is found out for a long time, so that a convenient, reasonable and safe slow driving control system is designed, and the working of turning, maintenance and the like of the mill can be completed in a short time, so that the starting time of the mill is not influenced.
Disclosure of Invention
In order to overcome the defects in the background technology, the utility model discloses a mining mill slow-driving control system which realizes the control of slow-driving forward and reverse rotation, engagement and disengagement.
In order to achieve the aim of the utility model, the following technical scheme is adopted:
a slow-driving control system of a mining mill comprises
A slow-driving motor main loop;
a clutch hydraulic motor main circuit;
a brake motor main circuit;
the slow-driving motor heats the main loop of the belt;
a three-phase power supply U, V, W, N is introduced from the outside as a bus, and a QM1 access bus is connected with the KM1 in series to provide a three-phase power supply for the slow-driving motor; the QM3 access bus is connected with the KM3 in series to provide three-phase power supply for the brake motor; the QM4 access bus is connected with the KM4 in series to provide a three-phase power supply for the clutch hydraulic motor; QM5 is connected into a U phase, is connected with KM5 and a slow-driving motor heating belt in series, is connected with N, and provides a single-phase 220V power supply for the slow-driving motor heating belt;
the slow-driving motor forward and reverse rotation control circuit is used for controlling forward and reverse rotation of the slow-driving motor;
the clutch hydraulic motor control circuit is used for controlling the operation and stop of the hydraulic oil pump motor to enable the hydraulic push rod to move forwards and backwards, so that slow driving engagement and disengagement are realized;
the brake control circuit is used for controlling the brake motor, and enabling the brake to be in a band-type brake state when the slow drive is not running;
the slow-driving motor heating belt control circuit is used for heating the slow-driving motor;
a direct current power supply 24V power supply circuit for supplying power to each intermediate relay, the electromagnetic valve and the indicator lamp;
and the hydraulic station alarm detection circuit is used for detecting the liquid level and the pressure difference of the hydraulic station.
The mining mill slow-driving control system further comprises:
the ready-to-allow slow-drive starting control circuit is used for sending a signal for allowing slow drive;
the slow-driving point-driving tooth alignment control circuit is used for starting and stopping a slow-driving motor in a point-driving mode so that the slow-driving reaches a meshing tooth alignment state; the method comprises the steps of,
a status indication circuit.
The forward and reverse rotation control circuit of the slow-driving motor comprises:
the slow-driving forward rotation front end control circuit is used for interlocking with the ready-allowed slow-driving starting control circuit and interlocking with the slow-driving reverse rotation front end control circuit, so that the starting condition is met and the three-phase short circuit of a slow-driving motor is prevented;
the slow-driving reverse rotation front end control circuit is used for interlocking with the ready-allowed slow-driving starting control circuit and interlocking with the slow-driving forward rotation front end control circuit, so that the starting condition is met and the three-phase short circuit of the slow-driving motor is prevented;
the slow-driving forward rotation rear end control circuit is used for interlocking with the brake control circuit to ensure that the brake is not in a band-type brake state before the slow-driving motor is in forward movement;
the slow-driving reversing rear-end control circuit is used for interlocking with the brake control circuit to ensure that the brake is not in a band-type brake state before the slow-driving motor reverses to operate;
the clutch hydraulic motor control circuit includes: the slow-driving clutch is meshed with the disengagement control circuit, the position detection circuit and the hydraulic oil pump motor control circuit.
The slow-drive clutch engagement and disengagement control circuit comprises:
the slow-driving clutch disengagement control circuit is used for interlocking with the slow-driving clutch engagement detection circuit and interlocking with the slow-driving clutch engagement electromagnetic valve circuit, so that the oil pump motor operates, and the slow-driving clutch is disengaged in place;
and the slow-driving clutch engagement control circuit is used for interlocking with the slow-driving clutch disengagement detection circuit and interlocking with the slow-driving clutch disengagement electromagnetic valve circuit, so that the oil pump motor operates, and the slow-driving clutch is engaged in place.
The position detection circuit includes:
the slow-drive clutch disengagement detection circuit is used for detecting the disengagement position of the slow-drive clutch;
the slow-drive clutch engagement detection circuit is used for detecting the release position of the slow-drive clutch;
the slow-driving clutch is disconnected from the electromagnetic valve circuit and is used for controlling the disconnection electromagnetic valve to realize oil circuit switching;
the slow-driving clutch engagement electromagnetic valve circuit is used for controlling the engagement electromagnetic valve to realize oil circuit switching;
the position of the clutch is detected through the disengaging and engaging limit switch, and the hydraulic push rod is moved in an interlocking way to achieve the purposes of engaging and disengaging the slow drive.
The brake control circuit includes:
the brake operation delay control circuit is used for realizing the operation of a brake motor before the forward and reverse rotation of the slow-driving motor, and releasing the brake;
the brake inching loosening control circuit is used for testing the brake or automatically finding the balance position of the mill cylinder body when the clutch is not smoothly released, so that smooth tooth release is realized.
The hydraulic station alarm detection circuit includes: the oil level low detection circuit and the oil filter blockage detection circuit of the hydraulic station.
The status indication circuit includes:
a slow oil displacement station fault alarm circuit;
ready allows slow drive to start the indication circuit;
a slow-driving forward rotation indicating circuit;
a slow-driving inversion indication circuit;
an operation indication circuit of the hydraulic oil pump motor; and
and the slow-driving motor is provided with a heating belt operation indicating circuit.
Due to the adoption of the technical scheme, the utility model has the following beneficial effects:
the mining mill slow-driving control system has normal slow-driving forward and reverse rotation control function, also has automatic disengaging and engaging functions, avoids manual push-pull, releases a brake under the condition of slow-driving latch, automatically finds a balance position of the mill, and further smoothly disengages the slow-driving clutch, thereby being safe, simple and convenient and beneficial to operators to grasp.
Drawings
Fig. 1 is a primary main circuit diagram of the present utility model: and a power circuit of each motor.
Fig. 2 is a two-level control circuit diagram of the present utility model: the ready allows the slow-drive start control circuit, the slow-drive forward-rotation front-end control circuit and the inching tooth-to-tooth front-end control circuit.
Fig. 3 is a three-stage control circuit diagram of the present utility model: the clutch engagement and disengagement control circuit, the clutch hydraulic motor control circuit, the brake control circuit, the slow-drive reverse rotation rear end control circuit, the inching tooth-aligning rear end control circuit and the slow-drive motor heater control circuit.
Fig. 4 is a four-stage control circuit diagram of the present utility model: and the slow-driving clutch position detection circuit and the hydraulic station alarm detection circuit.
Fig. 5 is a state indicating circuit diagram of the present utility model.
Slow-drive motor breaker QM1, slow-drive brake motor breaker QM3, clutch hydraulic motor breaker QM4, slow-drive motor heater breaker QM5.
And controlling the power supply to be in an idle state QF1, and controlling the direct-current power supply to be in an idle state QF2 of 24V.
The motor is driven slowly forward and backward to contact the contactor KM1, the motor is driven slowly backward to contact the contactor KM2, the motor is driven slowly to contact the contactor KM3, the hydraulic motor is connected with the contactor KM4, and the motor is driven slowly to contact the contactor KM5.
The slow-driving motor forward rotating relay KA1, the slow-driving motor reverse rotating relay KA2, the ready-allowed slow-driving starting relay KA3, the externally-allowed slow-driving working relay KA4, the slow-driving clutch hydraulic station liquid level low relay KA5, the slow-driving clutch hydraulic station oil filter blocking relay KA6, the slow-driving clutch disengaging relay KA7, the slow-driving clutch engaging relay KA8, the slow-driving clutch disengaging in-place relay KA11, the slow-driving clutch engaging in-place relay KA12 and the brake operation delay relay KT.
The main motor operation/O/slow-driving operation change-over switch SA1, the slow-driving tooth alignment/normal operation change-over switch SA2, the slow-driving point-movement tooth alignment control button SB0, the slow-driving forward rotation control button SB1, the slow-driving reverse rotation control button SB2, the slow-driving stop control button SB3, the brake point-movement release control button SB4, the slow-driving clutch release control button SB5, the slow-driving clutch engagement control button SB6, the slow-driving clutch stop control button SB7 and the slow-driving hydraulic oil pump stop control button SB8.
The control power supply indicator lamp HL0, the slow-driving forward rotation indicator lamp HL1, the slow-driving reverse rotation indicator lamp HL2, the ready-to-allow slow-driving operation indicator lamp HL3, the slow-driving clutch engagement indicator lamp HL4, the hydraulic station liquid level low indicator lamp HL5, the hydraulic station oil filter blockage indicator lamp HL6, the hydraulic oil pump motor operation indicator lamp HL7 and the slow-driving electric heating belt operation indicator lamp HL8.
A thermal relay FR, a buzzer HA, and an integrated power source UR.
Description of the embodiments
The utility model will be explained in more detail by the following examples, the purpose of which is to protect all technical improvements within the scope of the utility model.
A mining mill slow-drive control system as described with reference to the accompanying drawings, comprising:
a main loop of the slow-driving motor, wherein a three-phase power inlet wire is connected to the motor through a QM1 and a contactor KM1, and the three-phase sequence is U, V, W to control the slow-driving motor to rotate positively; the three-phase power inlet wire is connected to the motor through the QM1 and the contactor KM2, and the three-phase sequence is W, V, U, so that the slow-driving motor is controlled to rotate reversely;
a clutch hydraulic motor main circuit;
a brake motor main circuit;
the slow-driving motor heats the main loop of the belt;
a three-phase power supply U, V, W, N is introduced from the outside as a bus, and a QM1 access bus is connected with the KM1 in series to provide a three-phase power supply for the slow-driving motor; the QM3 access bus is connected with the KM3 in series to provide three-phase power supply for the brake motor; the QM4 access bus is connected with the KM4 in series to provide a three-phase power supply for the clutch hydraulic motor; QM5 is connected into a U phase, is connected with KM5 and a slow-driving motor heating belt in series, is connected with N, and provides a single-phase 220V power supply for the slow-driving motor heating belt;
the slow-driving motor forward and reverse rotation control circuit is used for controlling forward and reverse rotation of the slow-driving motor;
the clutch hydraulic motor control circuit is used for controlling the operation and stop of the hydraulic oil pump motor to enable the hydraulic push rod to move forwards and backwards, so that slow driving engagement and disengagement are realized;
the brake control circuit is used for controlling the brake motor, and enabling the brake to be in a band-type brake state when the slow drive is not running;
the slow-driving motor heating belt control circuit is used for heating the slow-driving motor; as shown in fig. 3, the slow motor heater control circuit: the U phase, the normally closed contact of KM1, the normally closed contact of KM2, the auxiliary normally open contact of QM5, one end of the coil of KM5 and one end of the coil of KM5 are connected in series in sequence to form a circuit.
A direct current power supply 24V power supply circuit for supplying power to each intermediate relay, the electromagnetic valve and the indicator lamp; as shown in fig. 4, the U-phase and the N provide ac 220V power input for UR through the air-break QF2, the UR outputs 24 dc power to form two buses of +24v and 0V, and all buttons, relays, indicator lamps and detection switches of 24V are connected between the buses of +24v and 0V;
and the hydraulic station alarm detection circuit is used for detecting the liquid level and the pressure difference of the hydraulic station.
Further, the slow-driving motor forward and reverse rotation control circuit comprises: the device comprises a slow-driving forward rotation front end control circuit, a slow-driving reverse rotation front end control circuit, a slow-driving forward rotation rear end control circuit and a slow-driving reverse rotation rear end control circuit.
As shown in fig. 2, the slow-drive forward-rotation front-end control circuit: the U phase, the normally open contact of KA3, the normally closed contact of SB3, the normally open contact of SA2 and the normally open contact of SB1 are connected in parallel with the normally open contact of KA1 in sequence, the normally closed contact of SB2, the normally closed contact of KA2, one end of a coil of KA1 and the other end of the coil of KA1 are connected in series to form a circuit; the slow-driving forward-rotation front-end control circuit is used for interlocking with the ready-allowed slow-driving starting control circuit and interlocking with the slow-driving reverse-rotation front-end control circuit, so that the starting condition is met and the three-phase short circuit of the slow-driving motor is prevented.
As shown in fig. 2, the slow-drive inversion front-end control circuit: a branch is branched from the lower end of a normally open contact of SB2 of the slow-driving forward rotation control circuit, the normally open contact of SB2 is connected in parallel with the normally open contact of KA2 in sequence, the normally closed contact of SB1, the normally closed contact of KA1, one end of a coil of KA2 and the other end of the coil of KA2 are connected in series to form a circuit; the slow-driving reverse rotation front end control circuit is used for interlocking with the ready-allowed slow-driving starting control circuit and interlocking with the slow-driving forward rotation front end control circuit, so that the starting condition is met and the three-phase short circuit of the slow-driving motor is prevented.
As shown in fig. 3, the slow-drive forward-rotation back-end control circuit: the U phase, the normally open contact of KT, the normally open contact of KA1, the normally closed contact of KM2, one end of a coil of KM1 and one end of the coil of KM1 are connected in series in sequence to form a circuit; the slow-driving forward rotation rear end control circuit is used for interlocking with the brake control circuit to ensure that the brake is not in a band-type brake state before the slow-driving motor is in forward movement;
as shown in fig. 3, the slow-drive inversion back-end control circuit: a branch is separated from the lower end of a normally open contact of KT of a slow-driving forward rotation rear-end control circuit, and a normally open contact of KA2, a normally closed contact of KM1, one end of a coil of KM2 and one end of the coil of KM2 are connected in series in sequence to form a circuit; and the slow-driving reversing rear-end control circuit is used for interlocking with the brake control circuit to ensure that the brake is not in a band-type brake state before the slow-driving motor reverses.
Further, the clutch hydraulic motor control circuit includes: the slow-driving clutch is meshed with the disengagement control circuit, the position detection circuit and the hydraulic oil pump motor control circuit;
the slow-drive clutch engagement and disengagement control circuit comprises: the slow-drive clutch is disconnected from the control circuit and the slow-drive clutch is engaged with the control circuit.
As shown in fig. 3, the slow-drive clutch disengagement control circuit: the U phase, the normally closed contact of SB7, the normally closed contact of KA11 and the normally open contact of SB5 are connected in parallel with the normally open contact of KA7, the normally closed contact of KA8, one end of the coil of KA7 and the other end of the coil of KA7 are connected in series in sequence to form a circuit. The slow-driving clutch disengagement control circuit is used for interlocking with the slow-driving clutch engagement detection circuit and interlocking with the slow-driving clutch engagement electromagnetic valve circuit, so that the oil pump motor operates, and the slow-driving clutch is disengaged in place.
As shown in fig. 3, the slow-drive clutch engagement control circuit: the lower end of a normally-closed contact of a slow-driving clutch disengagement control circuit SB7 is branched, and a normally-closed contact of KA12 and a normally-open contact of SB6 are connected in parallel with a normally-open contact of KA8 in sequence, and the normally-closed contact of KA7, one end of a coil of KA8 and the other end of the coil of KA8 are connected in series to form a circuit. The slow-driving clutch engagement control circuit is used for interlocking with the slow-driving clutch disengagement detection circuit and interlocking with the slow-driving clutch disengagement electromagnetic valve circuit, so that the oil pump motor operates, and the slow-driving clutch is engaged in place.
As shown in fig. 3, the hydraulic oil pump motor control circuit: the U phase, the normally open contact of QM4, the normally closed contact of SB8, the normally closed contact of KA5 and the normally open contact of KA7 are connected in parallel with the normally open contact of KA8 in sequence, one end of a coil of KM4 and the other end of the coil of KM4 are connected in series to form a circuit.
Further, the position detection circuit includes: the device comprises a slow-drive clutch disengagement detection circuit, a slow-drive clutch engagement detection circuit, a slow-drive clutch disengagement electromagnetic valve circuit and a slow-drive clutch engagement electromagnetic valve circuit.
As shown in fig. 4, the slow-drive clutch disengagement detection circuit: the +24V, one end of a coil of a disconnection detection switch ZS-021 and a coil of KA11 and the other end of the coil of KA11 are connected in series in sequence to form a circuit, wherein the two ends of the coil of KA11 are connected in parallel with HL9; the slow-drive clutch disengagement detection circuit is used for detecting the disengagement position of the slow-drive clutch;
as shown in fig. 4, the slow-drive clutch engagement detection circuit: the +24V, one end of the coil of the meshing detection switch ZS-020, KA12 and the other end of the coil of KA12 are connected in series with 0V in sequence to form a circuit, wherein the two ends of the coil of KA12 are connected in parallel with HL4; the slow-drive clutch engagement detection circuit is used for detecting the release position of the slow-drive clutch;
as shown in fig. 4, the slow-drive clutch disengages the solenoid circuit: the normally open contact of +24V, KA7, one end of the coil of the disengaging electromagnetic valve SV006 and the other end of the coil of the disengaging electromagnetic valve are connected in series with 0V in sequence to form a circuit;
the slow-driving clutch is disconnected from the electromagnetic valve circuit and is used for controlling the disconnection electromagnetic valve to realize oil circuit switching;
as shown in fig. 4, the slow-drive clutch engages the solenoid circuit: the normally open contact of +24V, KA8, one end of the coil of the meshing electromagnetic valve SV0056 and the other end of the coil of the meshing electromagnetic valve are connected with 0V in series in sequence to form a circuit; and the slow-driving clutch engagement electromagnetic valve circuit is used for controlling the engagement electromagnetic valve to realize oil circuit switching.
The position of the clutch is detected through the disengaging and engaging limit switch, and the hydraulic push rod is moved in an interlocking way to achieve the purposes of engaging and disengaging the slow drive.
Further, the brake control circuit includes: a brake operation delay control circuit and a brake inching release control circuit;
as shown in fig. 3, the brake operation delay control circuit: the U phase, the normally open contact of KM3, one end of the KT coil and the other end of the KT coil are connected in series in sequence to form a circuit. The brake operation delay control circuit is used for realizing the operation of a brake motor before the forward and reverse rotation of the slow-driving motor, and releasing the brake;
as shown in fig. 3, the brake click release control circuit: the first control circuit is a circuit formed by serially connecting a normally open contact of SB4, a normally open contact of KA4, one end of a coil of KM3 and one end of the coil of KM3 in sequence, wherein the lower end of a normally closed contact of KM2 of the control circuit of the slow-driving motor heater is branched; the second control circuit is a circuit formed by sequentially connecting a U phase, a normally open contact of KA1, one end of a coil of KM3 and one end of the coil of KM3 in series; the third control circuit is a circuit formed by serially connecting a normally open contact of a U phase and KA2, one end of a coil of KM3 and one end of the coil of KM3 in sequence. The brake inching loosening control circuit is used for testing the brake or automatically finding the balance position of the mill cylinder body when the clutch is not smoothly released, so that smooth tooth release is realized.
Further, the hydraulic station alarm detection circuit includes: the oil level low detection circuit and the oil filter blockage detection circuit of the hydraulic station.
As shown in fig. 4, the hydraulic station oil level low detection circuit: and sequentially connecting one end of a coil of the +24V oil level low detection switch LS-003 and one end of a coil of the KA5 with the other end of the coil of the KA5 in series to form a circuit, wherein the two ends of the coil of the KA5 are connected in parallel with HL5.
As shown in fig. 4, the oil filter plug detection circuit: and sequentially connecting +24V, one end of a coil of the pressure detection switch PDSH-006 and the other end of a coil of the KA6 with 0V in series to form a circuit, wherein the two ends of the coil of the KA6 are connected with HL6 in parallel.
Further, the mining mill slow-driving control system further comprises: the ready allows for slow drive start control circuitry, slow drive point to tooth control circuitry, and status indication circuitry.
Further, as shown in fig. 2, the ready allows the slow-drive start control circuit to: the auxiliary normally open contact of the U phase and the QM1, the auxiliary normally open contact of the normally closed contact FR and the QM3 of the thermal relay, the normally open contact of the slow driving work of the change-over switch SA1, the normally open contact of the KA4, one end of a coil of the KA3 and the other end N of the coil of the KA3 are connected in series in sequence to form a circuit; the ready-allowed slow-drive starting control circuit is used for sending a signal for allowing slow drive;
further, as shown in fig. 2, the slow-driving point-to-tooth control circuit: the lower end of a normally open contact allowing a change-over switch SA1 in a slow-driving starting control circuit to work is branched, and a normally open contact of SB0, a normally closed contact of SA2, a normally open contact of an external slow-driving point-allowing relay, a normally closed contact of KA2, one end of a coil of KA1 and the other end N of KA1 are connected in series in sequence to form a circuit; and the slow driving point-driving tooth alignment control circuit is used for starting and stopping the slow driving motor in a point-driving mode so that the slow driving reaches a meshing tooth alignment state.
Further, as shown in fig. 5, the status indication circuit includes:
the fault alarm circuit of the slow oil displacement station is formed by sequentially connecting a normally open contact of +24V, KA5 with a normally open contact of KA6 in parallel and connecting HA and 0V in series;
ready allows slow drive start indication circuitry to: the normally open contact of +24V, KA3, the indicator lamp HL3 and 0V are connected in series in sequence to form a circuit;
slow-drive forward rotation indicating circuit: the normally open contact of +24V, KM1 and the indicator lamps HL1 and 0V are connected in series in sequence to form a circuit;
slow-drive inversion indication circuit: the normally open contact of +24V, KM2, the indicator lamp HL2 and 0V are connected in series in sequence to form a circuit;
hydraulic oil pump motor operation indicating circuit: the normally open contact of +24V, KM4, the indicator lamp HL7 and 0V are connected in series in sequence to form a circuit;
the slow-driving motor heating belt operation indication circuit: the normally open contact of +24V, KM5, the indicator lamp HL8 and 0V are connected in series in sequence to form a circuit;
in fig. 2, the control power supply is turned on empty and QF1 is connected with the U phase and the N, the U phase and the N are led out from the lower end of the QF1 to serve as buses, all coils of 220V buttons, relays and contactors are connected between the U phase and the N of the buses, and two ends of the control power supply indicator lamp HL0 are connected with the U phase and the N.
A mining mill slow-driving control method specifically comprises the following steps:
(1) Before the slow driving operation, the main motor stops rotating, and the main motor work/O/slow driving work change-over switch SA1 is driven to a slow driving work position, and the slow driving clutch is at a disengaging position. All the circuit breakers and the idle switches are powered on, and the power indicator lamp HL0 is controlled to be on;
(2) Firstly, observing whether the slow-driving teeth are aligned or not, if the slow-driving teeth are not aligned, pressing a slow-driving point to drive a tooth alignment control button SB0, opening a brake, operating a slow-driving motor after one second, lighting a slow-driving forward rotation indicator lamp HL1, observing that the teeth are aligned to a proper position, and loosening SB0;
(3) After alignment, the slow-driving clutch engagement control button SB6 is pressed, the hydraulic oil pump is operated, the hydraulic oil pump motor operation indicator lamp HL7 is on, when the engagement is detected in place, the slow-driving clutch engagement indicator lamp HL4 is on and interlocked with external conditions, after an allowable slow-driving operation signal is sent out, the allowable slow-driving operation indicator lamp HL3 is on, the slow-driving forward rotation control button SB1 or the reverse rotation control button SB2 is pressed, the slow-driving can drive the mill cylinder to rotate forward and reverse, when the mill cylinder rotates to a proper position, the slow-driving operation is stopped, the bearing is reported to be dead by a brake, and at the moment, the operation such as overhaul can be performed;
(4) After the work is finished, the slow driving is started to be separated, whether two tooth surfaces are clamped or not is observed, if the two tooth surfaces are clamped, the brake is used for inching to loosen the control SB4, after the cylinder body automatically finds the balance position, the SB4 is loosened, and then the slow driving is used for inching to perform forward and reverse rotation, so that no clamping teeth are ensured. When the slow-driving clutch is pressed to release the control button SB5, the hydraulic oil pump operates, the hydraulic oil pump motor operation indicator lamp HL7 is on, and after the hydraulic oil pump motor operation indicator lamp HL7 is smoothly released in place, the slow-driving clutch engagement indicator lamp HL9 is on, and the oil pump motor is automatically stopped;
(5) In the process of slow-drive engagement and disengagement, the process can be stopped by pressing a slow-drive clutch stop control button SB7, and can be stopped by clicking by pressing a slow-drive hydraulic oil pump stop control button SB 8;
(6) Under the conditions of low liquid level and oil filter blockage, the slow-driving hydraulic station can send out audible and visual alarm signals to stop the slow-driving clutch.
Claims (7)
1. A mining mill drives control system slowly which characterized in that: comprising
A slow-driving motor main loop;
a clutch hydraulic motor main circuit;
a brake motor main circuit;
the slow-driving motor heats the main loop of the belt;
a three-phase power supply U, V, W, N is introduced from the outside as a bus, and a QM1 access bus is connected with the KM1 in series to provide a three-phase power supply for the slow-driving motor; the QM3 access bus is connected with the KM3 in series to provide three-phase power supply for the brake motor; the QM4 access bus is connected with the KM4 in series to provide a three-phase power supply for the clutch hydraulic motor; QM5 is connected into a U phase, is connected with KM5 and a slow-driving motor heating belt in series, is connected with N, and provides a single-phase 220V power supply for the slow-driving motor heating belt;
the slow-driving motor forward and reverse rotation control circuit is used for controlling forward and reverse rotation of the slow-driving motor;
the clutch hydraulic motor control circuit is used for controlling the operation and stop of the hydraulic oil pump motor to enable the hydraulic push rod to move forwards and backwards, so that slow driving engagement and disengagement are realized;
the brake control circuit is used for controlling the brake motor, and enabling the brake to be in a band-type brake state when the slow drive is not running;
the slow-driving motor heating belt control circuit is used for heating the slow-driving motor;
a direct current power supply 24V power supply circuit for supplying power to each intermediate relay, the electromagnetic valve and the indicator lamp;
and the hydraulic station alarm detection circuit is used for detecting the liquid level and the pressure difference of the hydraulic station.
2. The mining mill slow-drive control system according to claim 1, wherein: further comprises:
the ready-to-allow slow-drive starting control circuit is used for sending a signal for allowing slow drive;
the slow-driving point-driving tooth alignment control circuit is used for starting and stopping a slow-driving motor in a point-driving mode so that the slow-driving reaches a meshing tooth alignment state; the method comprises the steps of,
a status indication circuit.
3. The mining mill slow-drive control system according to claim 1, wherein: the forward and reverse rotation control circuit of the slow-driving motor comprises:
the slow-driving forward rotation front end control circuit is used for interlocking with the ready-allowed slow-driving starting control circuit and interlocking with the slow-driving reverse rotation front end control circuit, so that the starting condition is met and the three-phase short circuit of a slow-driving motor is prevented;
the slow-driving reverse rotation front end control circuit is used for interlocking with the ready-allowed slow-driving starting control circuit and interlocking with the slow-driving forward rotation front end control circuit, so that the starting condition is met and the three-phase short circuit of the slow-driving motor is prevented;
the slow-driving forward rotation rear end control circuit is used for interlocking with the brake control circuit to ensure that the brake is not in a band-type brake state before the slow-driving motor is in forward movement;
and the slow-driving reversing rear-end control circuit is used for interlocking with the brake control circuit to ensure that the brake is not in a band-type brake state before the slow-driving motor reverses.
4. The mining mill slow-drive control system according to claim 1, wherein: the clutch hydraulic motor control circuit includes: the slow-driving clutch is meshed with the disengagement control circuit, the position detection circuit and the hydraulic oil pump motor control circuit;
the slow-drive clutch engagement and disengagement control circuit comprises:
the slow-driving clutch disengagement control circuit is used for interlocking with the slow-driving clutch engagement detection circuit and interlocking with the slow-driving clutch engagement electromagnetic valve circuit, so that the oil pump motor operates, and the slow-driving clutch is disengaged in place;
the slow-driving clutch engagement control circuit is used for interlocking with the slow-driving clutch disengagement detection circuit and interlocking with the slow-driving clutch disengagement electromagnetic valve circuit, so that the oil pump motor operates, and the slow-driving clutch is engaged in place;
the position detection circuit includes:
the slow-drive clutch disengagement detection circuit is used for detecting the disengagement position of the slow-drive clutch;
the slow-drive clutch engagement detection circuit is used for detecting the release position of the slow-drive clutch;
the slow-driving clutch is disconnected from the electromagnetic valve circuit and is used for controlling the disconnection electromagnetic valve to realize oil circuit switching;
the slow-driving clutch engagement electromagnetic valve circuit is used for controlling the engagement electromagnetic valve to realize oil circuit switching;
the position of the clutch is detected through the disengaging and engaging limit switch, and the hydraulic push rod is moved in an interlocking way to achieve the purposes of engaging and disengaging the slow drive.
5. The mining mill slow-drive control system according to claim 1, wherein: the brake control circuit includes:
the brake operation delay control circuit is used for realizing the operation of a brake motor before the forward and reverse rotation of the slow-driving motor, and releasing the brake;
the brake inching loosening control circuit is used for testing the brake or automatically finding the balance position of the mill cylinder body when the clutch is not smoothly released, so that smooth tooth release is realized.
6. The mining mill slow-drive control system according to claim 1, wherein: the hydraulic station alarm detection circuit includes: the oil level low detection circuit and the oil filter blockage detection circuit of the hydraulic station.
7. The mining mill slow-drive control system according to claim 2, wherein: the status indication circuit includes:
a slow oil displacement station fault alarm circuit;
ready allows slow drive to start the indication circuit;
a slow-driving forward rotation indicating circuit;
a slow-driving inversion indication circuit;
an operation indication circuit of the hydraulic oil pump motor; and
and the slow-driving motor is provided with a heating belt operation indicating circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321150241.5U CN220160202U (en) | 2023-05-12 | 2023-05-12 | Mining mill drives control system slowly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321150241.5U CN220160202U (en) | 2023-05-12 | 2023-05-12 | Mining mill drives control system slowly |
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| Publication Number | Publication Date |
|---|---|
| CN220160202U true CN220160202U (en) | 2023-12-12 |
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ID=89066684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321150241.5U Active CN220160202U (en) | 2023-05-12 | 2023-05-12 | Mining mill drives control system slowly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220160202U (en) |
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2023
- 2023-05-12 CN CN202321150241.5U patent/CN220160202U/en active Active
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