CN213906648U - Crane alarm control system - Google Patents
Crane alarm control system Download PDFInfo
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- CN213906648U CN213906648U CN202120032083.8U CN202120032083U CN213906648U CN 213906648 U CN213906648 U CN 213906648U CN 202120032083 U CN202120032083 U CN 202120032083U CN 213906648 U CN213906648 U CN 213906648U
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Abstract
A lifting driving alarm control system relates to the technical field of automatic control, and aims to solve the technical problem of how to modify the existing driving alarm bell so that the driving alarm bell automatically gives an alarm along with the driving action; the lifting travelling crane driving motor opens the band-type brake before each action, a plurality of normally closed contacts of a band-type brake relay coil for controlling the band-type brake are connected in series, then an intermediate relay coil is connected, a normally closed contact of the intermediate relay coil is used for controlling a time delay relay coil, and a normally open contact of the time delay relay coil is used for controlling an alarm bell; through transforming, present jack-up driving alarm bell is automatic to follow the driving action and is warned, need not the manual work and has carried out manual warning, has solved the potential safety hazard.
Description
Technical Field
The utility model belongs to the technical field of automatic control, concretely relates to jack-up driving alarm control system.
Background
When the workshop was used the driving to lift by crane the operation, the alarm device of driving installation all needed the manual work to carry out manual control, had some driving drivers to forget often in the operation process and carry out alarm bell and warn and just directly start the driving and bring great hidden danger for the safety, through transforming, the automatic driving action of following of driving alarm bell now is warned, has solved the potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in how to reform transform current driving alarm bell for driving alarm bell is automatic to follow the driving action and is warned.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
a crane alarm control system comprises a main circuit and an alarm control circuit, wherein the main circuit comprises a three-phase alternating current contactor (2) and a crane driving motor (4); the alarm control circuit comprises a miniature circuit breaker (10), a first thermal relay (11), a start/emergency stop button (12), a first linkage button (13), a three-phase alternating current contactor normally-open contact (14), a three-phase alternating current contactor coil (15), a second linkage button (16), a band-type brake relay coil (17), a band-type brake relay first normally-closed contact (20), a band-type brake relay second normally-closed contact (21), a band-type brake relay third normally-closed contact (22), a band-type brake relay fourth normally-closed contact (23), an intermediate relay coil (24), an intermediate relay coil normally-closed contact (25), a time delay relay coil (26), a time delay relay normally-open contact (27) and an alarm bell (28); the three-phase alternating current contactor (2) is connected with a driving motor (4) of the crane in series; the three-phase alternating current contactor coil (15) controls the three-phase alternating current contactor (2) to be closed and closed, so that the starting and stopping of the driving motor (4) of the crane are controlled; the intelligent control system comprises a first thermal relay (11), a start/emergency stop button (12), a first linkage button (13) and a three-phase alternating current contactor coil (15) which are sequentially connected in series, wherein the non-series end of the first thermal relay (11) is connected with a live wire of a first power supply through a miniature circuit breaker (10), and the non-series end of the three-phase alternating current contactor coil (15) is connected with a zero line of the first power supply through the miniature circuit breaker (10); the normally open contacts (14) of the three-phase alternating current contactor are connected in parallel at two ends of the first linkage button (13); the second linkage button (16) is connected with a band-type brake relay coil (17) in series, the non-series end of the second linkage button (16) is connected to the common point of the start/emergency stop button (12) and the first linkage button (13) in series, and the non-series end of the second linkage button (16) is connected with the zero line of the first power supply 2 through the miniature circuit breaker (10); a first normally closed contact (20) of the band-type brake relay, a second normally closed contact (21) of the band-type brake relay, a third normally closed contact (22) of the band-type brake relay, a fourth normally closed contact (23) of the band-type brake relay and an intermediate relay coil (24) are sequentially connected in series and then connected with a first power supply through a miniature circuit breaker (10); the normally closed contact (25) of the intermediate relay coil is connected with the time delay relay coil (26) in series and then is connected with a first power supply through a miniature circuit breaker (10); the time delay relay normally open contact (27) is connected with the alarm bell (28) in series and then is connected with a first power supply through the miniature circuit breaker (10).
The lifting travelling crane driving motor (4) opens the band-type brake before each action, a plurality of normally closed contacts of a band-type brake relay coil (17) for controlling the band-type brake are connected in series, then an intermediate relay coil (24) is connected, a time delay relay coil (26) is controlled by using an intermediate relay coil normally closed contact (25), and an alarm bell is controlled by using a time delay relay normally open contact (27) of the time delay relay coil (26); through transforming, present jack-up driving alarm bell is automatic to follow the driving action and is warned, need not the manual work and has carried out manual warning, has solved the potential safety hazard.
As a further improvement of the technical scheme of the utility model, the main circuit also comprises an air switch (1), a three-phase thermal relay (3), a normally open contact (5) of a band-type brake relay and a band-type brake coil (6); the air switch (1), the three-phase alternating current contactor (2), the three-phase thermal relay (3) and the crane driving motor (4) are sequentially connected in series, and the non-series end of the air switch (1) is connected with a second power supply; one end of a normally open contact (5) of the band-type brake relay is connected to the common point of the air switch (1) and the three-phase alternating current contactor (2) in series connection, and the other end of the normally open contact (5) of the band-type brake relay is connected with a band-type brake coil (6).
As the further improvement of the technical proposal of the utility model, the first power supply is a 220V alternating current power supply.
As a further improvement of the technical scheme of the utility model, the second power supply be 380V three-phase alternating current power supply.
As the further improvement of the technical proposal of the utility model, the miniature circuit breaker (10) adopts the miniature circuit breaker of the model S201M-C6.
As the further improvement of the technical proposal of the utility model, the model of the three-phase AC contactor (2) is ABB A9-30-10.
As the further improvement of the technical proposal of the utility model, the model of the three-phase thermal relay (3) is TA25 DU.
The utility model has the advantages that:
(1) the lifting travelling crane driving motor (4) opens the band-type brake before each action, a plurality of normally closed contacts of a band-type brake relay coil (17) for controlling the band-type brake are connected in series, then an intermediate relay coil (24) is connected, a time delay relay coil (26) is controlled by using an intermediate relay coil normally closed contact (25), and an alarm bell is controlled by using a time delay relay normally open contact (27) of the time delay relay coil (26); through transforming, present jack-up driving alarm bell is automatic to follow the driving action and is warned, need not the manual work and has carried out manual warning, has solved the potential safety hazard.
(2) The miniature circuit breaker (10) adopts a miniature circuit breaker of S201M-C6 type, has an explosion-proof function, and is suitable for the environments of explosive dust and explosive gas in coal mines.
(3) The model of the three-phase thermal relay (3) is TA25DU, and the current setting range of the thermal relay is 7.5-11A; the tripping grade of the thermal overload relay is 10A, the working environment temperature is-25 ℃ to +55 ℃, the thermal overload relay is suitable for EEX e motor protection, and can be matched with various contactors in a plug-in manner or can be additionally and independently installed.
(4) The three-phase alternating current contactor (2) is ABB A9-30-10 in model, is of a protection type, has a direct action type action structure, and has double breakpoints as contacts, and has the characteristics of small volume, light weight, low power consumption, long service life, safety and reliability.
(5) The technical scheme of the utility model reform transform control circuit, the engineering volume is little, the input is few, reaches better effect.
Drawings
Fig. 1 is a main circuit diagram of a crane according to an embodiment of the present invention;
fig. 2 is an alarm control circuit diagram of the crane vehicle according to the embodiment of the present invention.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The technical solution of the present invention is further described below with reference to the drawings and specific embodiments of the specification:
example one
Fig. 1 is a main circuit of a crane, which comprises an air switch (1), a three-phase alternating current contactor (2), a three-phase thermal relay (3), a crane driving motor (4), a brake relay normally open contact (5) and a brake coil (6); the air switch (1), the three-phase alternating current contactor (2), the three-phase thermal relay (3) and the crane driving motor (4) are sequentially connected in series, and the non-series end of the air switch (1) is connected with a 380V alternating current power supply; one end of a normally open contact (5) of the band-type brake relay is connected to the common point of the air switch (1) and the three-phase alternating current contactor (2) in series connection, and the other end of the normally open contact (5) of the band-type brake relay is connected with a band-type brake coil (6).
Fig. 2 is an alarm control circuit of a crane, which comprises a miniature circuit breaker (10), a first thermal relay (11), a start/emergency stop button (12), a first linkage button (13), a three-phase alternating current contactor normally-open contact (14), a three-phase alternating current contactor coil (15), a second linkage button (16), a brake relay coil (17), a first normally-closed contact (20) of the brake relay, a second normally-closed contact (21) of the brake relay, a third normally-closed contact (22) of the brake relay, a fourth normally-closed contact (23) of the brake relay, an intermediate relay coil (24), a normally-closed contact (25) of the intermediate relay coil, a time delay relay coil (26), a normally-open contact (27) of the time delay relay, and an alarm bell (28).
The intelligent control system comprises a first thermal relay (11), a start/emergency stop button (12), a first linkage button (13) and a three-phase alternating current contactor coil (15) which are sequentially connected in series, wherein the non-series end of the first thermal relay (11) is connected with a live wire of a 220V power supply through a miniature circuit breaker (10), and the non-series end of the three-phase alternating current contactor coil (15) is connected with a zero line of the 220V power supply through the miniature circuit breaker (10); the normally open contacts (14) of the three-phase alternating current contactor are connected in parallel at two ends of the first linkage button (13); the second linkage button (16) is connected with a band-type brake relay coil (17) in series, the non-series end of the second linkage button (16) is connected to the common point of the start/emergency stop button (12) and the first linkage button (13) in series, and the non-series end of the second linkage button (16) is connected with the zero line of a 220V power supply through a miniature circuit breaker (10); a first normally closed contact (20) of the band-type brake relay, a second normally closed contact (21) of the band-type brake relay, a third normally closed contact (22) of the band-type brake relay, a fourth normally closed contact (23) of the band-type brake relay and an intermediate relay coil (24) are sequentially connected in series and then connected with a 220V power supply through a miniature circuit breaker (10); the normally closed contact (25) of the intermediate relay coil is connected with the time delay relay coil (26) in series and then is connected with a 220V power supply through a miniature circuit breaker (10); the normally open contact (27) of the time delay relay is connected with the alarm bell (28) in series and then is connected with a 220V power supply through the miniature circuit breaker (10).
The miniature circuit breaker (10) adopts a miniature circuit breaker of S201M-C6 type, has an explosion-proof function, and is suitable for the environments of explosive dust and explosive gas in coal mines.
The model of the three-phase thermal relay (3) is TA25DU, and the current setting range of the thermal relay is 7.5-11A; the tripping grade of the thermal overload relay is 10A, the working environment temperature is-25 ℃ to +55 ℃, the thermal overload relay is suitable for EEX e motor protection, and can be matched with various contactors in a plug-in manner or can be additionally and independently installed.
The three-phase alternating current contactor (2) is ABB A9-30-10 in model, is of a protection type, has a direct action type action structure, and has double breakpoints as contacts, and has the characteristics of small volume, light weight, low power consumption, long service life, safety and reliability.
The working principle is as follows: when the three-phase AC contactor works, the first linkage button (13) is closed, the coil (15) of the three-phase AC contactor is electrified, the normally open contact (14) of the three-phase AC contactor is attracted and self-protected, and the three-phase AC contactor (2) is closed; meanwhile, the second linkage button (16) is disconnected, the band-type brake relay coil (17) loses power, the normally open contact (5) of the band-type brake relay is disconnected, the band-type brake coil (6) loses power, the band-type brake is released, and the hoisting travelling crane driving motor (4) normally acts. Because the coil (17) of the band-type brake relay loses electricity, the first normally closed contact (20) of the band-type brake relay, the second normally closed contact (21) of the band-type brake relay, the third normally closed contact (22) of the band-type brake relay and the fourth normally closed contact (23) of the band-type brake relay are simultaneously disconnected, the coil (24) of the intermediate relay loses electricity, the normally closed contact (25) of the coil of the intermediate relay is closed, the coil (26) of the time delay relay is electrified, the normally open contact (27) of the time delay relay is closed, and the alarm bell (28) sounds when electrified to warn; and after the time delay is finished, releasing the time delay relay coil (26), finishing the warning, and waiting for the action of the driving motor (4) of the next crane.
The lifting travelling crane driving motor (4) opens the band-type brake before each action, a plurality of normally closed contacts of a band-type brake relay coil (17) for controlling the band-type brake are connected in series, then an intermediate relay coil (24) is connected, a time delay relay coil (26) is controlled by using an intermediate relay coil normally closed contact (25), and an alarm bell is controlled by using a time delay relay normally open contact (27) of the time delay relay coil (26); through transforming, present jack-up driving alarm bell is automatic to follow the driving action and is warned, need not the manual work and has carried out manual warning, has solved the potential safety hazard.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. The crane alarm control system is characterized by comprising a main circuit and an alarm control circuit, wherein the main circuit comprises a three-phase alternating current contactor (2) and a crane driving motor (4); the alarm control circuit comprises a miniature circuit breaker (10), a first thermal relay (11), a start/emergency stop button (12), a first linkage button (13), a three-phase alternating current contactor normally-open contact (14), a three-phase alternating current contactor coil (15), a second linkage button (16), a band-type brake relay coil (17), a band-type brake relay first normally-closed contact (20), a band-type brake relay second normally-closed contact (21), a band-type brake relay third normally-closed contact (22), a band-type brake relay fourth normally-closed contact (23), an intermediate relay coil (24), an intermediate relay coil normally-closed contact (25), a time delay relay coil (26), a time delay relay normally-open contact (27) and an alarm bell (28); the three-phase alternating current contactor (2) is connected with a driving motor (4) of the crane in series; the three-phase alternating current contactor coil (15) controls the three-phase alternating current contactor (2) to be closed and closed, so that the starting and stopping of the driving motor (4) of the crane are controlled; the intelligent control system comprises a first thermal relay (11), a start/emergency stop button (12), a first linkage button (13) and a three-phase alternating current contactor coil (15) which are sequentially connected in series, wherein the non-series end of the first thermal relay (11) is connected with a live wire of a first power supply through a miniature circuit breaker (10), and the non-series end of the three-phase alternating current contactor coil (15) is connected with a zero line of the first power supply through the miniature circuit breaker (10); the normally open contacts (14) of the three-phase alternating current contactor are connected in parallel at two ends of the first linkage button (13); the second linkage button (16) is connected with a band-type brake relay coil (17) in series, the non-series end of the second linkage button (16) is connected to the common point of the start/emergency stop button (12) and the first linkage button (13) in series, and the non-series end of the second linkage button (16) is connected with the zero line of the first power supply 2 through the miniature circuit breaker (10); a first normally closed contact (20) of the band-type brake relay, a second normally closed contact (21) of the band-type brake relay, a third normally closed contact (22) of the band-type brake relay, a fourth normally closed contact (23) of the band-type brake relay and an intermediate relay coil (24) are sequentially connected in series and then connected with a first power supply through a miniature circuit breaker (10); the normally closed contact (25) of the intermediate relay coil is connected with the time delay relay coil (26) in series and then is connected with a first power supply through a miniature circuit breaker (10); the time delay relay normally open contact (27) is connected with the alarm bell (28) in series and then is connected with a first power supply through the miniature circuit breaker (10).
2. A crane alarm control system according to claim 1, wherein the main circuit further comprises an air switch (1), a three-phase thermal relay (3), a normally open contact (5) of a brake relay, and a brake coil (6); the air switch (1), the three-phase alternating current contactor (2), the three-phase thermal relay (3) and the crane driving motor (4) are sequentially connected in series, and the non-series end of the air switch (1) is connected with a second power supply; one end of a normally open contact (5) of the band-type brake relay is connected to the common point of the air switch (1) and the three-phase alternating current contactor (2) in series connection, and the other end of the normally open contact (5) of the band-type brake relay is connected with a band-type brake coil (6).
3. A crane alarm control system as claimed in claim 1 wherein said first power supply is a 220V ac power supply.
4. A crane alarm control system as claimed in claim 2 wherein said secondary power supply is a 380V three phase ac power supply.
5. A crane alarm control system as claimed in claim 1, wherein said miniature circuit breaker (10) is of the type S201M-C6.
6. A crane alarm control system according to claim 1, wherein the three-phase ac contactor (2) is of the type ABB a 9-30-10.
7. A crane alarm control system according to claim 2, wherein the three-phase thermal relay (3) is of the type TA25 DU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120032083.8U CN213906648U (en) | 2021-01-06 | 2021-01-06 | Crane alarm control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120032083.8U CN213906648U (en) | 2021-01-06 | 2021-01-06 | Crane alarm control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213906648U true CN213906648U (en) | 2021-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120032083.8U Active CN213906648U (en) | 2021-01-06 | 2021-01-06 | Crane alarm control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213906648U (en) |
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2021
- 2021-01-06 CN CN202120032083.8U patent/CN213906648U/en active Active
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