CN208506557U - A kind of SCM Based crane control circuit - Google Patents
A kind of SCM Based crane control circuit Download PDFInfo
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- CN208506557U CN208506557U CN201821142883.XU CN201821142883U CN208506557U CN 208506557 U CN208506557 U CN 208506557U CN 201821142883 U CN201821142883 U CN 201821142883U CN 208506557 U CN208506557 U CN 208506557U
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- chip microcontroller
- signal acquisition
- control
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Abstract
A kind of SCM Based crane control circuit: input signal Acquisition Circuit is that single-chip microcontroller acquires data, single-chip microcontroller control relay circuit, relay circuit is respectively and directional contactor, accelerating contactor connection, power supply provides working power for electrical components, crystal oscillator provides work clock for single-chip microcontroller, wherein input signal Acquisition Circuit includes controlling main to enable signal acquisition circuit, limit Acquisition Circuit, contacts of contactor detection circuit, the directional contactor, accelerating contactor controls coiling electric motor, controller controls crane brake, the single-chip microcontroller is completed by the time relay to directional contactor, the time of accelerating contactor controls.The institute that the utility model realizes original circuit is functional, enormously simplifies external cabling.And modification control logic can be facilitated by programming language, realize the control function of other common control flows of crane, crane control circuit can be optimized and function addition without modifying to hardware circuit.
Description
Technical field
The utility model relates to the electric control circuits of general overhead and gantry cranes.
Background technique
As shown in Figs. 1-2, currently, electric controling screen is still being widely applied on crane, control flow mainly passes through convex
It takes turns controller and completes the purpose for starting to crane and adjusting the speed, line principle is complicated, and wiring is cumbersome, it is easy to happen line fault,
Maintenance is inconvenient.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of SCM Based crane control circuit.
The technical solution of the utility model specifically:
A kind of SCM Based crane control circuit: input signal Acquisition Circuit is that single-chip microcontroller acquires data, monolithic
Machine control relay circuit, relay circuit are connected with directional contactor, accelerating contactor respectively, and power supply provides for electrical components
Working power, crystal oscillator provide work clock for single-chip microcontroller, and wherein input signal Acquisition Circuit includes controlling main to enable signal acquisition electric
Road, limit Acquisition Circuit, contacts of contactor detection circuit, the directional contactor, accelerating contactor control coiling electric motor, control
Device processed controls crane brake, the single-chip microcontroller by time relay completion to directional contactor, accelerating contactor when
Between control.
Further: the input signal Acquisition Circuit connects single-chip microcontroller by photoelectric isolating circuit.
Further: the single-chip microcontroller passes through photoelectric isolating circuit Connection Time relay.
Further: the directional contactor and accelerating contactor are all contactor array.
Further: the input signal Acquisition Circuit is using exchange input.
Further: the single-chip microcontroller uses MCS51 single-chip microcontroller.
Further: the control is main to be enabled signal acquisition circuit acquisition LK17-5/301 is main enables signal.
Compared with the existing technology, the technical effect of the utility model is that the utility model realizes all of original circuit
Function enormously simplifies external cabling.And modification control logic can be facilitated by programming language, realizing crane, other are common
The control function of control flow can optimize crane control circuit and function adds without modifying to hardware circuit
Add.
Detailed description of the invention
Fig. 1 is the crane PQR2 control flow major loop schematic illustration of the prior art.
Fig. 2 is that the crane PQR2 control flow control loop schematic illustration contact closure program of the prior art is
PQR2.4。
Fig. 3 is the crane control circuit theory schematic diagram of the utility model.
Fig. 4 is the crane logic controller schematic illustration of the utility model.
Fig. 5 is the structural schematic diagram of the utility model.
Wherein S40s is cam controller, and S40s1 is the main order of LK17-5/301.
Specific embodiment
As in Figure 3-5, a kind of SCM Based crane control circuit, input signal Acquisition Circuit are adopted for single-chip microcontroller
Collect data, single-chip microcontroller control relay circuit, relay circuit is connected with directional contactor, accelerating contactor respectively, and power supply is
Electrical components provide working power, and crystal oscillator provides work clock for single-chip microcontroller, and wherein input signal Acquisition Circuit includes control master
Enable signal acquisition circuit, limit Acquisition Circuit, contacts of contactor detection circuit, the directional contactor, accelerating contactor control
Coiling electric motor processed, controller control crane brake, and the single-chip microcontroller is completed to directional contactor by the time relay, added
The time of quick access tentaculum controls.
Wherein directional contactor and accelerating contactor are all contactor array.
In crane decline, one grade of controller control directional contactor changes the phase of coiling electric motor, carries out reversal connection system
Dynamic, two grades of controller control directional contactors change the phase of coiling electric motor, carry out uniphase brake, the control of third gear controller accelerates
Contactor changes the revolving speed of coiling electric motor, carries out regenerative braking, completes the braking to crane by the combination that third gear is braked, is
Guarantee not slipping hook phenomenon when stopping, controller control brake is prior to electric motor circuit breaking when parking.It is all connect in third gear
After logical, controller controls accelerating contactor closing in sequence by the time relay.
Referring to shown in Fig. 3, the utility model is closed small main order with standard third gear step by step and original PQR2.4 complexity is replaced to be closed
Sequentially, control is main enables signal access input signal Acquisition Circuit together by control signal acquisition circuit and limit signal, inputs
Signal acquisition circuit is increased input signal transmission range and is effectively inhibited interference signal using exchange input.Input signal is adopted
Collector increases contacts of contactor detection circuit, and SCM Based crane control circuit increases contacts of contactor detection function
Can, it is detected by the contact to contactor, control circuit can carry out circuit according to the contacts status of contactor automatic
Interlocking, prevents to malfunction, and so that entire control circuit is had feedback by the contacts status of limit signal and contactor
The function of adjusting, controller carry out control circuit according to the location information of limit signal and the status information of contacts of contactor
Feedback regulation, the automatic adjustment of relay time deadline control.Input signal is passed through photoelectricity by input signal Acquisition Circuit
Isolation circuit is sent into inside single-chip microcontroller, and single-chip microcontroller sends control signal by photoelectric isolating circuit, and control directional contactor accelerates
Contactor come realize coiling electric motor starting, braking, accelerate, commutation.
Wherein MCS51 single-chip microcontroller can be used in single-chip microcontroller.
The control is main to be enabled signal acquisition circuit acquisition LK17-5/301 is main enables signal.
Above-described is only preferred embodiments of the present invention, it is noted that for those skilled in the art
For, under the premise of not departing from the utility model general idea, several changes and improvements can also be made, these also should be considered as
The protection scope of the utility model.
Claims (7)
1. a kind of SCM Based crane control circuit, it is characterised in that: input signal Acquisition Circuit is single-chip microcontroller acquisition
Data, single-chip microcontroller control relay circuit, relay circuit are connected with directional contactor, accelerating contactor respectively, and power supply is electricity
Gas original part provides working power, and crystal oscillator provides work clock for single-chip microcontroller, and wherein input signal Acquisition Circuit includes controlling main order
Signal acquisition circuit, limit Acquisition Circuit, contacts of contactor detection circuit, the directional contactor, accelerating contactor control
Coiling electric motor, controller control crane brake, and the single-chip microcontroller is completed to directional contactor by the time relay, accelerated
The time of contactor controls.
2. a kind of SCM Based crane control circuit as described in claim 1, it is characterised in that: the input signal
Acquisition Circuit connects single-chip microcontroller by photoelectric isolating circuit.
3. a kind of SCM Based crane control circuit as described in claim 1, it is characterised in that: the single-chip microcontroller is logical
Cross photoelectric isolating circuit Connection Time relay.
4. a kind of SCM Based crane control circuit as described in claim 1, it is characterised in that: the commutation contact
Device and accelerating contactor are all contactor array.
5. a kind of SCM Based crane control circuit as described in claim 1, it is characterised in that: the input signal
Acquisition Circuit is using exchange input.
6. a kind of SCM Based crane control circuit as described in claim 1, it is characterised in that: the single-chip microcontroller is adopted
With MCS51 single-chip microcontroller.
7. a kind of SCM Based crane control circuit as described in claim 1, it is characterised in that: the main order of control
LK17-5/301 is main enables signal for signal acquisition circuit acquisition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821142883.XU CN208506557U (en) | 2018-07-19 | 2018-07-19 | A kind of SCM Based crane control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821142883.XU CN208506557U (en) | 2018-07-19 | 2018-07-19 | A kind of SCM Based crane control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208506557U true CN208506557U (en) | 2019-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821142883.XU Active CN208506557U (en) | 2018-07-19 | 2018-07-19 | A kind of SCM Based crane control circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN208506557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114625042A (en) * | 2022-02-25 | 2022-06-14 | 南平市建阳区波特安电子科技有限公司 | Direct control system of bridge crane |
-
2018
- 2018-07-19 CN CN201821142883.XU patent/CN208506557U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114625042A (en) * | 2022-02-25 | 2022-06-14 | 南平市建阳区波特安电子科技有限公司 | Direct control system of bridge crane |
| CN114625042B (en) * | 2022-02-25 | 2023-12-26 | 南平市建阳区波特安电子科技有限公司 | Bridge crane direct control system |
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