CN219906765U - Driving control circuit - Google Patents
Driving control circuit Download PDFInfo
- Publication number
- CN219906765U CN219906765U CN202320861333.8U CN202320861333U CN219906765U CN 219906765 U CN219906765 U CN 219906765U CN 202320861333 U CN202320861333 U CN 202320861333U CN 219906765 U CN219906765 U CN 219906765U
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- contactor
- power supply
- control circuit
- relay
- motor
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- 239000007787 solid Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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- Control Of Multiple Motors (AREA)
Abstract
The utility model discloses a driving control circuit, which adopts a solid-state relay; the third motor is connected to the solid-state relay through the first overcurrent relay, the second overcurrent relay and the third overcurrent relay, the solid-state relay is connected to the alternating current power supply through the third air switch, the direct current power supply, the normally-closed contact of the first overcurrent relay, the normally-closed contact of the second overcurrent relay, the normally-closed contact of the third overcurrent relay and the third fuse are connected in series, one end of the direct current power supply is connected to the negative electrode of the solid-state relay, the other end of the direct current power supply is connected to the first positive electrode of the solid-state relay through the fifth normally-open button and the second travel switch, and the other end of the direct current power supply is also connected to the second positive electrode of the solid-state relay through the sixth normally-open button and the first travel switch. The driving control circuit adopts the solid state relay, and has advanced process and high sensitivity.
Description
Technical Field
The utility model relates to a driving control circuit.
Background
The existing driving control circuit has the defects that the driving lifting hook works up and down, the positive and negative rotation circuit formed by two contactors is controlled, the contactors are frequently attracted and released to enable the contacts to be easy to damage and the movable parts to be blocked, and meanwhile, the screws of the contactors are loose to easily cause poor line contact, phase failure and the like.
Disclosure of Invention
The utility model provides a driving control circuit which solves the technical problems and adopts the following technical scheme:
a drive control circuit comprising: the control circuit comprises an up-down control circuit, a left-right control circuit and a front-back control circuit, wherein the up-down control circuit, the left-right control circuit and the front-back control circuit are connected to an alternating current power supply;
the up-down control circuit includes: a third motor M3, a first overcurrent relay KJ1, a second overcurrent relay KJ2, a third overcurrent relay KJ3, a solid-state relay, a first travel switch SQ1, a second travel switch SQ2, a fifth normally-on button SB5, a sixth normally-on button SB6, a direct-current power supply DCP, a third air switch QF3, and a third fuse FU3;
the third motor M3 is connected to the solid-state relay through the first overcurrent relay KJ1, the second overcurrent relay KJ2 and the third overcurrent relay KJ3, the solid-state relay is further connected to the ac power supply through the third air switch QF3, the dc power supply DCP, the normally closed contact KJ11 of the first overcurrent relay KJ1, the normally closed contact KJ21 of the second overcurrent relay KJ2, the normally closed contact KJ31 of the third overcurrent relay KJ3 and the third fuse FU3 are connected in series, one end of the dc power supply DCP is connected to the ac power supply and the other end of the dc power supply DCP is connected to the negative electrode of the solid-state relay, the other end of the dc power supply DCP is connected to the first positive electrode of the solid-state relay through a fifth normally open button SB5 and a second travel switch SQ2, and the other end of the dc power supply DCP is further connected to the solid-state relay SB6 through a sixth normally open button SB6 and the first positive electrode of the solid-state relay SQ 1.
Further, the front-back control circuit includes: the motor comprises a first motor M1, a first contactor KM1, a second contactor KM2, a first normally open button SB1, a second normally open button SB2 and a first fuse FU1, wherein the first motor M1 is connected to an alternating current power supply in a first connection mode through the first contactor KM1, the first motor M1 is connected to the alternating current power supply in a second connection mode through the second contactor KM2, the first normally open button SB1, an auxiliary normally closed point KM22 of the second contactor KM2 and a contactor coil KM11 of the first contactor KM1 are connected in series to form a forward control sub-circuit, the second normally open button SB2, an auxiliary normally closed point KM12 of the first contactor KM1 and a contactor coil KM21 of the second contactor KM2 are connected in series to form a backward control sub-circuit, and the forward control sub-circuit and the backward control sub-circuit are connected in parallel to form a forward control sub-circuit and a backward control sub-circuit with the first fuse FU1.
Further, the front-rear control circuit further includes a first air switch QF1, the first contactor KM1 is connected to an ac power supply through the first air switch QF1, and the second contactor KM2 is connected to the ac power supply through the first air switch QF 1.
Further, the front-rear control circuit further includes a first thermal relay FR1, the first thermal relay FR1 is disposed between the first motor M1 and the first contactor KM1 and between the first motor M1 and the second contactor KM2, and an auxiliary normally-closed contact FR11 of the first thermal relay FR1 is connected in series with the first fuse FU1.
Further, the left-right control circuit includes: the device comprises a second motor M2, a third contactor KM3, a fourth contactor KM4, a third normally open button SB3, a fourth normally open button SB4 and a second fuse FU2, wherein the second motor M2 is connected to an alternating current power supply in a first connection mode through the third contactor KM3, the second motor M2 is connected to the alternating current power supply in a second connection mode through the fourth contactor KM4, the third normally open button SB3, an auxiliary normally closed point KM42 of the fourth contactor KM4 and a contactor coil KM31 of the third contactor KM3 are connected in series to form a left control sub-circuit, the fourth normally open button SB4, an auxiliary normally closed point KM32 of the third contactor KM1 and a contactor coil KM41 of the fourth contactor KM4 are connected in series to form a right control sub-circuit, and the left control sub-circuit and the right control sub-circuit are connected in parallel to form a left control sub-circuit and a right control sub-circuit to the alternating current power supply.
Further, the left-right control circuit further includes a second air switch QF2, the third contactor KM3 is connected to an ac power supply through the second air switch QF2, and the fourth contactor KM4 is connected to the ac power supply through the second air switch QF 2.
Further, the left-right control circuit further includes a second thermal relay FR2, the second thermal relay FR2 is disposed between the second motor M2 and the third contactor KM3 and between the second motor M2 and the fourth contactor KM4, and an auxiliary normally-closed contact FR21 of the second thermal relay FR2 is connected in series with the first fuse FU2.
Further, the dc power supply DCP provides a 24V dc voltage.
Further, the type of the solid state relay is MGR-3M4860 three-phase forward and reverse solid state relay.
The utility model has the advantages that the provided driving control circuit adopts the solid state relay, and has advanced process and high sensitivity.
Drawings
Fig. 1 is a schematic diagram of a driving control circuit according to the present utility model.
Detailed Description
The utility model is described in detail below with reference to the drawings and the specific embodiments.
Fig. 1 shows a driving control circuit of the present utility model, which includes: the up-down control circuit, the left-right control circuit and the front-back control circuit are connected to an alternating current power supply.
As a preferred embodiment, the up-down control circuit includes: the three-phase current control circuit comprises a third motor M3, a first overcurrent relay KJ1, a second overcurrent relay KJ2, a third overcurrent relay KJ3, a solid-state relay, a first travel switch SQ1, a second travel switch SQ2, a fifth normally-on button SB5, a sixth normally-on button SB6, a direct-current power supply DCP, a third air switch QF3 and a third fuse FU3.
Specifically, the third motor M3 is connected to the solid-state relay through the first overcurrent relay KJ1, the second overcurrent relay KJ2, and the third overcurrent relay KJ3, the solid-state relay is further connected to the ac power supply through the third air switch QF3, the dc power supply DCP, the normally closed contact KJ11 of the first overcurrent relay KJ1, the normally closed contact KJ21 of the second overcurrent relay KJ2, the normally closed contact KJ31 of the third overcurrent relay KJ3, and the third fuse FU3 are connected in series, one end of the dc power supply DCP is connected to the ac power supply and the other end is connected between the solid-state relay and the third air switch QF3, the other end of the dc power supply DCP is connected to the first positive electrode of the solid-state relay through the fifth normally open button SB5 and the second travel switch SQ2, and the other end of the dc power supply DCP is further connected to the second positive electrode of the solid-state relay through the sixth normally open button SB6 and the first travel switch SQ 1.
In an embodiment of the utility model, the dc power supply DCP provides a 24V dc voltage. The solid state relay is MGR-3M4860 three-phase forward and reverse solid state relay, and is a contactless switch. By changing the 24V direct current wiring, the motor can be rotated in different directions.
As a preferred embodiment, the front-rear control circuit includes: a first motor M1, a first contactor KM1, a second contactor KM2, a first normally open button SB1, a second normally open button SB2, and a first fuse FU1.
Specifically, the first motor M1 is connected to the ac power supply in a first connection manner through the first contactor KM1, and the first motor M1 is connected to the ac power supply in a second connection manner through the second contactor KM 2. The first connection mode and the second connection mode refer to connecting the first motor M1 to an ac power source in the forward direction or the reverse direction. The first normally open button SB1, the auxiliary normally closed point KM22 of the second contactor KM2 and the contactor coil KM11 of the first contactor KM1 are connected in series to form a forward control sub-circuit, the second normally open button SB2, the auxiliary normally closed point KM12 of the first contactor KM1 and the contactor coil KM21 of the second contactor KM2 are connected in series to form a backward control sub-circuit, and the forward control sub-circuit and the backward control sub-circuit are connected in parallel and then connected in series with the first fuse FU1 to form a front-back control sub-circuit which is connected to an alternating current power supply. The KM12 and the KM22 are interlocked, so that short-circuit accidents caused by simultaneous operation of the KM1 and KM2 contactors are prevented.
As a preferred embodiment, the front-rear control circuit further includes a first air switch QF1, the first contactor KM1 is connected to the ac power supply through the first air switch QF1, and the second contactor KM2 is connected to the ac power supply through the first air switch QF 1.
As a preferred embodiment, the front-rear control circuit further includes a first thermal relay FR1, the first thermal relay FR1 being disposed between the first motor M1 and the first contactor KM1 and between the first motor M1 and the second contactor KM2, and an auxiliary normally-closed contact FR11 of the first thermal relay FR1 being connected in series with the first fuse FU1.
As a preferred embodiment, the left-right control circuit includes: a second motor M2, a third contactor KM3, a fourth contactor KM4, a third normally open button SB3, a fourth normally open button SB4, and a second fuse FU2.
Specifically, the second motor M2 is connected to the ac power supply in a first connection manner through the third contactor KM3, the second motor M2 is connected to the ac power supply in a second connection manner through the fourth contactor KM4, the third normally open button SB3, the auxiliary normally closed point KM42 of the fourth contactor KM4, and the contactor coil KM31 of the third contactor KM3 are connected in series to form a left control sub-circuit, the fourth normally open button SB4, the auxiliary normally closed point KM32 of the third contactor KM1, and the contactor coil KM41 of the fourth contactor KM4 are connected in series to form a right control sub-circuit, and the left control sub-circuit and the right control sub-circuit are connected in parallel and then connected in series with the second fuse FU2 to form a left control sub-circuit to be connected to the ac power supply. The KM32 and the KM42 are interlocked, so that short-circuit accidents caused by simultaneous operation of the KM3 and KM4 contactors are prevented.
As a preferred embodiment, the left-right control circuit further includes a second air switch QF2, the third contactor KM3 is connected to the ac power supply through the second air switch QF2, and the fourth contactor KM4 is connected to the ac power supply through the second air switch QF 2.
As a preferred embodiment, the left-right control circuit further includes a second thermal relay FR2, the second thermal relay FR2 being disposed between the second motor M2 and the third contactor KM3 and between the second motor M2 and the fourth contactor KM4, and an auxiliary normally-closed contact FR21 of the second thermal relay FR2 being connected in series with the first fuse FU2.
Working principle:
the first normally open button SB1 is pressed, the coil KM11 is attracted by the electric contactor KM1, the main circuit is connected, the first motor M1 runs forward, and the vehicle runs forward. The first normally open button SB1 is released, the first motor M1 is stopped, and the traveling crane is stopped forward. Pressing the second normally open button SB2, the coil KM21 is attracted by the electric contactor KM2, the first motor M1 is switched on, and the vehicle runs in the reverse direction. The second normally open button SB2 is released, the first motor M1 stops rotating, and the traveling crane stops backwards. FR11 opens and stops forward or backward when overloaded.
Pressing the third normally open button SB3, the coil KM31 is attracted by the electric contactor KM3, the main circuit is connected, the first motor M2 is operated in the forward direction, and the vehicle runs leftwards. The third normally open button SB3 is released, the second motor M2 is stopped, and the traveling crane is stopped leftwards. The fourth normally open button SB4 is pressed, the coil KM41 is attracted by the electric contactor KM4, the second motor M2 is switched on, and the motor runs reversely and runs rightwards. The fourth normally open button SB4 is released, the second motor M2 is stopped, and the traveling crane is stopped rightward. FR21 opens and stops to the left or right when overloaded.
The fifth normal open button SB5 is pressed, the solid state relay works, the main circuit is connected, the third motor M3 runs, the lifting hook is upward, the normally closed contact of SQ1 is opened when the maximum stroke is reached, and the lifting hook is upward stopped. Or the fifth normal opening button SB5 is released, the third motor M3 is stopped, and the hook is stopped upward. Pressing a sixth normally open button SB6, replacing a wiring terminal by the solid state relay +24V, outputting a phase-changed three-phase alternating current, reversely running the third motor M3, enabling the lifting hook to be downward, and enabling the normally closed contact of the SQ2 to be opened when the maximum stroke is reached, and enabling the lifting hook to be downward stopped. Or the sixth normally open button SB6 is released and the hook is stopped downward. When overcurrent occurs, KJ11, KJ21 and KJ31 are instantaneously disconnected, and the lifting hook stops upwards or downwards.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be appreciated by persons skilled in the art that the above embodiments are not intended to limit the utility model in any way, and that all technical solutions obtained by means of equivalent substitutions or equivalent transformations fall within the scope of the utility model.
Claims (9)
1. A traffic control circuit, comprising: the control circuit comprises an up-down control circuit, a left-right control circuit and a front-back control circuit, wherein the up-down control circuit, the left-right control circuit and the front-back control circuit are connected to an alternating current power supply;
the up-down control circuit includes: a third motor M3, a first overcurrent relay KJ1, a second overcurrent relay KJ2, a third overcurrent relay KJ3, a solid-state relay, a first travel switch SQ1, a second travel switch SQ2, a fifth normally-on button SB5, a sixth normally-on button SB6, a direct-current power supply DCP, a third air switch QF3, and a third fuse FU3;
the third motor M3 is connected to the solid-state relay through the first overcurrent relay KJ1, the second overcurrent relay KJ2 and the third overcurrent relay KJ3, the solid-state relay is further connected to the ac power supply through the third air switch QF3, the dc power supply DCP, the normally closed contact KJ11 of the first overcurrent relay KJ1, the normally closed contact KJ21 of the second overcurrent relay KJ2, the normally closed contact KJ31 of the third overcurrent relay KJ3 and the third fuse FU3 are connected in series, one end of the dc power supply DCP is connected to the ac power supply and the other end of the dc power supply DCP is connected to the negative electrode of the solid-state relay, the other end of the dc power supply DCP is connected to the first positive electrode of the solid-state relay through a fifth normally open button SB5 and a second travel switch SQ2, and the other end of the dc power supply DCP is further connected to the solid-state relay SB6 through a sixth normally open button SB6 and the first positive electrode of the solid-state relay SQ 1.
2. The traffic control circuit according to claim 1, wherein,
the front-back control circuit includes: the motor comprises a first motor M1, a first contactor KM1, a second contactor KM2, a first normally open button SB1, a second normally open button SB2 and a first fuse FU1, wherein the first motor M1 is connected to an alternating current power supply in a first connection mode through the first contactor KM1, the first motor M1 is connected to the alternating current power supply in a second connection mode through the second contactor KM2, the first normally open button SB1, an auxiliary normally closed point KM22 of the second contactor KM2 and a contactor coil KM11 of the first contactor KM1 are connected in series to form a forward control sub-circuit, the second normally open button SB2, an auxiliary normally closed point KM12 of the first contactor KM1 and a contactor coil KM21 of the second contactor KM2 are connected in series to form a backward control sub-circuit, and the forward control sub-circuit and the backward control sub-circuit are connected in parallel to form a forward control sub-circuit and a backward control sub-circuit with the first fuse FU1.
3. The traffic control circuit according to claim 2, wherein,
the front-rear control circuit further comprises a first air switch QF1, the first contactor KM1 is connected to an alternating current power supply through the first air switch QF1, and the second contactor KM2 is connected to the alternating current power supply through the first air switch QF 1.
4. The traffic control circuit according to claim 3, wherein,
the front-rear control circuit further comprises a first thermal relay FR1, the first thermal relay FR1 is arranged between the first motor M1 and the first contactor KM1 and between the first motor M1 and the second contactor KM2, and an auxiliary normally-closed contact FR11 of the first thermal relay FR1 is connected in series with the first fuse FU1.
5. The traffic control circuit according to claim 1, wherein,
the left-right control circuit includes: the device comprises a second motor M2, a third contactor KM3, a fourth contactor KM4, a third normally open button SB3, a fourth normally open button SB4 and a second fuse FU2, wherein the second motor M2 is connected to an alternating current power supply in a first connection mode through the third contactor KM3, the second motor M2 is connected to the alternating current power supply in a second connection mode through the fourth contactor KM4, the third normally open button SB3, an auxiliary normally closed point KM42 of the fourth contactor KM4 and a contactor coil KM31 of the third contactor KM3 are connected in series to form a left control sub-circuit, the fourth normally open button SB4, an auxiliary normally closed point KM32 of the third contactor KM3 and a contactor coil KM41 of the fourth contactor KM4 are connected in series to form a right control sub-circuit, and the left control sub-circuit and the right control sub-circuit are connected in parallel to form a left control sub-circuit and a right control sub-circuit to the alternating current power supply.
6. The traffic control circuit according to claim 5, wherein,
the left-right control circuit further comprises a second air switch QF2, the third contactor KM3 is connected to an alternating current power supply through the second air switch QF2, and the fourth contactor KM4 is connected to the alternating current power supply through the second air switch QF 2.
7. The traffic control circuit according to claim 6, wherein,
the left-right control circuit further comprises a second thermal relay FR2, the second thermal relay FR2 is arranged between the second motor M2 and the third contactor KM3 and between the second motor M2 and the fourth contactor KM4, and an auxiliary normally-closed contact FR21 of the second thermal relay FR2 is connected in series with the second fuse FU2.
8. The traffic control circuit according to claim 1, wherein,
the dc power supply DCP provides a 24V dc voltage.
9. The traffic control circuit according to claim 1, wherein,
the solid state relay is MGR-3M4860 three-phase forward and reverse solid state relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320861333.8U CN219906765U (en) | 2023-04-13 | 2023-04-13 | Driving control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320861333.8U CN219906765U (en) | 2023-04-13 | 2023-04-13 | Driving control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219906765U true CN219906765U (en) | 2023-10-27 |
Family
ID=88432210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320861333.8U Active CN219906765U (en) | 2023-04-13 | 2023-04-13 | Driving control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219906765U (en) |
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2023
- 2023-04-13 CN CN202320861333.8U patent/CN219906765U/en active Active
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