CN216625376U - Automatic control power switching device of double-power steel grabbing machine - Google Patents
Automatic control power switching device of double-power steel grabbing machine Download PDFInfo
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- CN216625376U CN216625376U CN202123071280.XU CN202123071280U CN216625376U CN 216625376 U CN216625376 U CN 216625376U CN 202123071280 U CN202123071280 U CN 202123071280U CN 216625376 U CN216625376 U CN 216625376U
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Abstract
The utility model relates to the technical field of steel grabbing machines, in particular to an automatic control power switching device of a double-power steel grabbing machine. The switching contactor includes a normally open contact and a normally closed contact. And the coil of the switching contactor and the input end of the normally open contact are connected to the power supply end. And the output end of the normally open contact and the output end of the normally closed contact of the switching contactor are both connected to the load end. The control relay is provided with a normally open contact, and two ends of the control relay are respectively connected to the input end of the normally closed contact of the switching contactor and the storage battery. And a coil of the control relay is connected to the storage battery through a key switch. The output end of the control relay is also connected with a starting motor. The starting motor is connected with the diesel engine in a transmission way. When the power supply end is electrified, the load end is driven by the electric energy of the power grid. When the power supply end is powered off, the load end is driven by the electric energy of the diesel engine and the storage battery.
Description
Technical Field
The utility model relates to the technical field of steel grabbing machines, in particular to an automatic control power switching device of a double-power steel grabbing machine.
Background
In the industry of steel grabbing machines of engineering machinery, the mainstream products at present are diesel type hydraulic steel grabbing machines and electric type hydraulic steel grabbing machines; wherein the diesel type steel grabbing machine has strong power and high flexibility of use places; the electric steel grabbing machine has the advantages that the power cannot be changed obviously due to the change of the altitude in use, no exhaust pollution is caused, the noise is low, the requirement on air cleanliness is low, the maintenance cost is low, the operation reliability is good, the overload capacity is high, and the use cost is low.
However, the working conditions of actual use are complex, and the steel grabbing machine cannot be switched between electric driving and diesel driving according to requirements, so that the use scene of the steel grabbing machine is single.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a double-power steel grabbing machine control power supply automatic switching device which can switch power supplies of steel grabbing machines according to needs.
The embodiment of the utility model is realized by the following technical scheme:
a double-power steel grabbing machine control power supply automatic switching device comprises a switching contactor, a power supply end, a storage battery, a control relay, a key switch and a load end;
the switching contactor comprises a normally open contact and a normally closed contact; the coil of the switching contactor and the input end of the normally open contact are connected to the power supply end; the output end of the normally open contact and the output end of the normally closed contact of the switching contactor are both connected to the load end;
the control relay is provided with a normally open contact; two ends of a normally open contact of the control relay are respectively connected with an input end of a normally closed contact of the switching contactor and the storage battery; the coil of the control relay is connected to the storage battery through a key switch; the output end of the control relay is also connected with a starting motor; the starting motor is connected with the diesel engine in a transmission way.
Further, the power supply end is a 380V alternating current power supply; the power end is provided with a 24V direct current power supply; and the output end of the 24V direct-current power supply is connected with the coil of the switching contactor and the input end of the normally open contact.
Furthermore, a misoperation prevention relay is also arranged; the anti-misoperation relay is provided with a normally closed contact; the coil of the misoperation prevention relay is connected to the output end of the 24V direct-current power supply; and two ends of a normally closed contact of the misoperation prevention relay are respectively connected to the output end of the storage battery and the input end of the key switch.
Further, the load end comprises a lighting lamp, a controller, a display instrument, a water spraying motor, a windscreen wiper, a battery valve and the like.
Further, the 380V alternating current power supply is also connected with a driving motor; and a soft starter is arranged at a power end of the driving motor.
Further, the 380V alternating current power supply is also provided with a circuit breaker; the driving motor and the 24V direct-current power supply are connected to the output end of the circuit breaker.
Further, a fuse is arranged between the switching contactor and the load end.
The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects:
when the double-power steel grabbing machine control power supply automatic switching device is used, a power supply end is connected with a power grid, and a storage battery is connected with a generator of a diesel engine. When the power supply end is electrified, the coil of the switching contactor is electrified, so that the normally open contact of the switching contactor is closed and the normally closed contact is opened. At this time, the load end is connected with the power supply end, so that the load end is driven by the electric energy of the power grid. Simultaneously, the load end is disconnected from the diesel engine and the battery. When the power supply end is powered off, the coil of the switching contactor is powered off, so that the normally open contact of the switching contactor is disconnected and the normally closed contact is closed. At the moment, the load end is communicated with the diesel engine and the storage battery, so that the load end is driven by electric energy of the diesel engine and the storage battery. Meanwhile, the load terminal is disconnected from the power supply terminal.
The double-power steel grabbing machine can conveniently switch the power supply of the steel grabbing machine between the power supply end and the storage battery by controlling the automatic power supply switching device. And then make this kind of grab steel machine can select suitable drive mode according to the operating mode of in-service use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic circuit diagram of an automatic control power switching device of a dual-power steel grabbing machine provided by the utility model.
Icon: 1-switching contactor, 2-power end, 3-storage battery, 4-control relay, 5-key switch, 6-load end, 7-starting motor, 8-diesel engine, 9-24V direct current power supply, 10-misoperation prevention relay, 11-soft starter, 12-driving motor, 13-circuit breaker and 14-fuse.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of this application is used, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figure 1, the utility model provides a double-power steel grabbing machine control power supply automatic switching device which comprises a switching contactor 1, a power supply end 2, a storage battery 3, a control relay 4, a key switch 5 and a load end 6.
The switching contactor 1 includes a normally open contact and a normally closed contact. The coil of the switching contactor 1 and the input end of the normally open contact are both connected to the power supply end 2. The output end of the normally open contact and the output end of the normally closed contact of the switching contactor 1 are both connected to the load end 6.
The control relay 4 is provided with a normally open contact. And two ends of a normally open contact of the control relay 4 are respectively connected with the input end of the normally closed contact of the switching contactor 1 and the storage battery 3. The coil of the control relay 4 is connected to the battery 3 through a key switch 5. The output end of the control relay 4 is also connected with a starting motor 7. The starting motor 7 is in transmission connection with the diesel engine 8. The starting motor 7 is electrified to drive the diesel engine 8 to rotate, so that the diesel engine 8 is started. The diesel engine 8 is provided with a power generation device. When the diesel engine 8 rotates, its corresponding generator rotates to generate electric power. This electric energy is consumed by the load terminal 6, and the remaining electric energy is stored in the battery 3.
The power source terminal 2 is connected to a drive motor 12. The driving motor 12 and the diesel engine 8 are respectively connected with one set of hydraulic system, and the two sets of hydraulic systems can independently control the action of the steel grabbing machine.
When the double-power steel grabbing machine control power supply automatic switching device is used, the power supply end 2 is connected with a power grid, and the storage battery 3 is connected with a generator of a diesel engine 8. When the power supply terminal 2 is energized, the coil of the switching contactor 1 is energized, so that the normally open contact of the switching contactor 1 is closed and the normally closed contact is opened. At this time, the load terminal 6 is connected to the power source terminal 2, so that the load terminal 6 is driven by the electric energy of the power grid. At the same time, the load side 6 is disconnected from the diesel engine 8 and the battery 3. When the power supply terminal 2 is powered off, the coil of the switching contactor 1 is powered off, so that the normally open contact of the switching contactor 1 is opened and the normally closed contact is closed. At the moment, the load end 6 is communicated with the diesel engine 8 and the storage battery 3; when the key switch 5 is turned on, the coil of the control relay 4 is electrified, so that the storage battery 3 is connected with the starting motor 7 and the load end 6, and the diesel engine 8 is started and the load end 6 is driven by electric energy of the diesel engine 8 and the storage battery 3. At the same time, the load terminal 6 is disconnected from the power supply terminal 2. In this process, the steel grab is driven by the diesel engine 8.
The double-power steel grabbing machine can conveniently switch the power supply of the steel grabbing machine between the power supply end 2 and the storage battery 3 by controlling the automatic power supply switching device. And then make this kind of grab steel machine can select suitable drive mode according to the operating mode of in-service use.
In this embodiment, the load end 6 includes loads such as an illumination lamp, a controller, a display instrument, a water spray motor, a wiper, and a battery valve. The power supply end 2 is a 380V alternating current power supply. The power supply terminal 2 is provided with a 24V dc power supply 9. The output terminal of the 24V dc power supply 9 is connected to the coil of the switching contactor 1 and the input terminal of the normally open contact. The 380V alternating current power supply is also connected with a driving motor 12. The power supply terminal 2 of the drive motor 12 is provided with a soft starter 11. When the power end 2 is electrified, the soft starter 11 enables the driving motor 12 to be started, and then the steel grabbing machine is driven to work. Meanwhile, only the power supply of 24V converts 380V alternating current power supply into direct current power supply to work by each part of the load end 6.
In this embodiment, a malfunction prevention relay 10 is also provided. The anti-malfunction relay 10 is provided with normally closed contacts. The coil of the malfunction prevention relay 10 is connected to the output terminal of the 24V dc power supply 9. Two ends of a normally closed contact of the misoperation prevention relay 10 are respectively connected to the output end of the storage battery 3 and the input end of the key switch 5. When the power source terminal 2 is turned on, the coil of the malfunction prevention relay 10 is energized, and the key switch 5 and the battery 3 are disconnected from each other. In this case, the closing of the key switch 5 also does not allow the coil of the control relay 4 to be energized. The coil of the control relay 4 is energized only by closing the key switch 5 when the power supply 2 is open, so that the battery 3 is connected to the load 6 and the starter motor 7. This avoids the diesel engine 8 being started by mistakenly touching the key switch 5 when the steel grab is in the power mode.
In this embodiment, the 380V ac power supply is further provided with a circuit breaker 13. The drive motor 12 and the 24V dc power supply 9 are both connected to the output of the circuit breaker 13. The on-off of the power supply end 2 can be conveniently controlled through the circuit breaker 13.
In the present embodiment, a fuse 14 is provided between the switching contactor 1 and the load terminal 6. The fuse 14 can prevent the load terminal 6 from overcurrent, and plays a role in protection.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a double dynamical steel machine control power automatic switching control equipment which characterized in that: the device comprises a switching contactor (1), a power supply end (2), a storage battery (3), a control relay (4), a key switch (5) and a load end (6);
the switching contactor (1) comprises a normally open contact and a normally closed contact; the input ends of a coil and a normally open contact of the switching contactor (1) are connected to the power supply end (2); the output end of a normally open contact and the output end of a normally closed contact of the switching contactor (1) are both connected to the load end (6);
the control relay (4) is provided with a normally open contact; two ends of a normally open contact of the control relay (4) are respectively connected with an input end of a normally closed contact of the switching contactor (1) and the storage battery (3); the coil of the control relay (4) is connected to the storage battery (3) through a key switch (5); the output end of the control relay (4) is also connected with a starting motor (7); the starting motor (7) is connected to the diesel engine (8) in a transmission manner.
2. The dual-power steel grabbing machine control power supply automatic switching device according to claim 1 is characterized in that: the power end (2) is a 380V alternating current power supply; the power supply end (2) is provided with a 24V direct-current power supply (9); and the output end of the 24V direct current power supply (9) is connected with the coil of the switching contactor (1) and the input end of the normally open contact.
3. The dual-power steel grabbing machine control power supply automatic switching device of claim 2 is characterized in that: an anti-misoperation relay (10) is also arranged; the anti-misoperation relay (10) is provided with a normally closed contact; the coil of the misoperation prevention relay (10) is connected to the output end of the 24V direct-current power supply (9); and two ends of a normally closed contact of the misoperation prevention relay (10) are respectively connected to the output end of the storage battery (3) and the input end of the key switch (5).
4. The dual-power steel grabbing machine control power supply automatic switching device of claim 3 is characterized in that: the load end (6) comprises an illuminating lamp, a controller, a display instrument, a water spraying motor, a windscreen wiper and a battery valve.
5. The dual-power steel grabbing machine control power supply automatic switching device of claim 2 is characterized in that: the 380V alternating current power supply is also connected with a driving motor (12); the power end (2) of the driving motor (12) is provided with a soft starter (11).
6. The dual-power steel grabbing machine control power supply automatic switching device of claim 5, characterized in that: the 380V alternating current power supply is also provided with a breaker (13); and the driving motor (12) and the 24V direct-current power supply (9) are connected to the output end of the circuit breaker (13).
7. The dual-power steel grabbing machine control power supply automatic switching device of claim 1, characterized in that: a fuse (14) is arranged between the switching contactor (1) and the load end (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123071280.XU CN216625376U (en) | 2021-12-08 | 2021-12-08 | Automatic control power switching device of double-power steel grabbing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123071280.XU CN216625376U (en) | 2021-12-08 | 2021-12-08 | Automatic control power switching device of double-power steel grabbing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216625376U true CN216625376U (en) | 2022-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123071280.XU Active CN216625376U (en) | 2021-12-08 | 2021-12-08 | Automatic control power switching device of double-power steel grabbing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216625376U (en) |
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2021
- 2021-12-08 CN CN202123071280.XU patent/CN216625376U/en active Active
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