CN216190294U - Bar electromagnet sub-control device - Google Patents

Abstract

The utility model discloses a bar electromagnet sub-control device, which belongs to the technical field of bar hoisting equipment and comprises at least one electromagnet, wherein a coil group is arranged in the electromagnet, and each coil of the coil group is connected in series with a contact of a contactor of the coil group and then is connected between the anode and the cathode of a power supply; after the coils of the contactors are connected with the respective branch switches in series, one end of each coil is connected with one end of a main switch, the other end of each coil is connected with the negative electrode of the power supply, and the other end of each main switch is connected with the positive electrode of the power supply. The utility model can solve the problem that the existing bar electromagnet cannot be separately controlled.

Description

Bar electromagnet sub-control device

Technical Field

The utility model relates to the technical field of bar hoisting equipment, in particular to an electromagnet sub-control device for controlling bar hoisting.

Background

A bar hoisting method for iron and steel enterprises generally adopts an electromagnet hoisting tool, the lower end of a sling of the hoisting tool is connected with a cross beam, a plurality of electromagnets which are controlled by a switch to be powered on or powered off are uniformly distributed along the length direction of the cross beam, and a coil and an iron core positioned in the coil are arranged in the electromagnets; when the lifting device works, the switch is pressed, and the coils are electrified to enable each electromagnet to generate magnetic force to attract all the bars in the magnetic force coverage range, so that the bars are lifted. During practical application, according to customer's requirement, need extract the stick sometimes or a small amount of rod, and when pressing the switch, the rod is held entirely, just can hoist after adopting the manual work to remove the rod of going out more, has that intensity of labour is big, work efficiency is low problem. And for the automatic hoisting of the unmanned traveling crane with the electromagnet structure only provided with one group of coils and iron cores, the stacking requirement can be completed only by multiple times of separate hoisting operation when the adsorption capacity of the bars is larger than the goods space of a warehouse, and the problem of inconvenience for the positioning and efficiency of the unmanned traveling crane is solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a bar electromagnet separate control device, which can solve the problem that the existing bar electromagnet cannot be separately controlled.

In order to solve the problems, the technical scheme adopted by the utility model is as follows: the bar electromagnet sub-control device comprises at least one electromagnet, wherein a coil group is arranged in the electromagnet, and each coil of the coil group is connected in series with a contact of each contactor and then is connected between the anode and the cathode of a power supply; after the coils of the contactors are connected with the respective branch switches in series, one end of each coil is connected with one end of a main switch, the other end of each coil is connected with the negative electrode of the power supply, and the other end of each main switch is connected with the positive electrode of the power supply.

In the above technical solution, a more specific technical solution may also be: the number of the electromagnets is four, and the electromagnets are uniformly distributed on the cross beam along the length direction of the cross beam.

Further: the main switch is a normally open switch, the branch switches are normally closed switches, and contacts of the contactor are normally open contacts.

Further: the number of the branch switches is four, and the four branch switches comprise a first branch switch, a second branch switch, a third branch switch and a fourth branch switch; the number of the contactors is four, and the contactors comprise a first contactor, a second contactor, a third contactor and a fourth contactor; the first branch switch is connected with a coil of the first contactor in series to form a first branch circuit, the second branch switch is connected with a coil of the second contactor in series to form a second branch circuit, the third branch switch is connected with a coil of the third contactor in series to form a third branch circuit, the fourth branch switch is connected with a coil of the fourth contactor in series to form a fourth branch circuit, and after the first branch circuit, the second branch circuit, the third branch circuit and the fourth branch circuit are connected in parallel, one end of the first branch circuit is connected with one end of a main switch, and the other end of the first branch circuit, the second branch circuit, the third branch circuit and the fourth branch circuit are connected with each other in parallel, the other end of the first branch circuit is connected with a negative electrode of the power supply; the other end of the main switch is connected with the anode of the power supply.

Further: the coil group comprises a first coil group, a second coil group, a third coil group and a fourth coil group, and the first coil group, the second coil group, the third coil group and the fourth coil group respectively comprise a first coil, a second coil, a third coil and a fourth coil; the first coil of the first coil group, the first coil of the second coil group, the first coil of the third coil group and the first coil of the fourth coil group are connected in parallel, and then are connected in series with a contact of the first contactor and then are connected between the positive pole and the negative pole of the power supply; the second coil of the first coil group, the second coil of the second coil group, the second coil of the third coil group and the second coil of the fourth coil group are connected in parallel, and then are connected in series with a contact of the second contactor and then are connected between the positive electrode and the negative electrode of the power supply; the third coil of the first coil group, the third coil of the second coil group, the third coil of the third coil group and the third coil of the fourth coil group are connected in parallel, and then are connected in series with a contact of the third contactor and then are connected between the positive electrode and the negative electrode of the power supply; and the fourth coil of the first coil group, the fourth coil of the second coil group, the fourth coil of the third coil group and the fourth coil of the fourth coil group are connected in parallel and then connected in series with a contact of the fourth contactor, and then connected between the positive pole and the negative pole of the power supply.

Due to the adoption of the technical scheme, compared with the prior art, the utility model has the following beneficial effects:

due to the structure of the utility model, when 1 bar needs to be put down, the corresponding branch switch is rotated to a power-off state, at the moment, the contact of the corresponding contactor is disconnected, and the corresponding coil group loses power, so that the putting down process of the bar can be completed. Similarly, if two rods are hung, the other two corresponding branch switches are rotated to a power-off state, and then the main switch is pressed, so that the required rods can be hung. So, realized the branch accuse of rod electro-magnet, the individualized demand that satisfies the customer and draw one or a small amount of rod that can be convenient, very big improvement the operating efficiency, also provide good control basis to the electro-magnet rod hoist and mount of unmanned driving.

Drawings

FIG. 1 is an electrical schematic of an embodiment of the present invention.

Detailed Description

The utility model will be further described in detail with reference to the following examples:

the bar electromagnet branch control device shown in fig. 1 comprises a main switch, at least one electromagnet, a branch switch and a contactor; the main switch is a normally open switch, the branch switches are normally closed switches, and the contacts of the contactor are normally open contacts; after coils of the contactors are connected with respective branch switches in series, one end of each coil is connected with one end of a main switch 13, the other end of each coil is connected with the negative electrode of a power supply, and the other end of each main switch 13 is connected with the positive electrode of the power supply; each coil of the coil group is connected in series with a contact of the contactor and then connected between the positive pole of the power supply and the negative pole of the power supply, and the power supply of the embodiment is a direct current 220V power supply; specifically, the method comprises the following steps: the number of the branch switches, the contactors and the electromagnets in the embodiment is four; the four electromagnets are uniformly distributed on the beam along the length direction of the beam and used for adsorbing the bar materials during hoisting; wherein: the branch switches comprise a first branch switch 9, a second branch switch 10, a third branch switch 11 and a fourth branch switch 12; the contactor comprises a first contactor, a second contactor, a third contactor and a fourth contactor; the first branch switch 9 is connected with a coil 5-1 of the first contactor in series to form a first branch circuit, the second branch switch 10 is connected with a coil 6-1 of the second contactor in series to form a second branch circuit, the third branch switch 11 is connected with a coil 7-1 of the third contactor in series to form a third branch circuit, the fourth branch switch 12 is connected with a coil 8-1 of the fourth contactor in series to form a fourth branch circuit, one end of the first branch circuit, one end of the second branch circuit, one end of the third branch circuit and one end of the fourth branch circuit are connected with one end of a main switch 13 after the first branch circuit, the second branch circuit, the third branch circuit and the fourth branch circuit are connected in parallel, and the other end of the first branch circuit, the second branch circuit, the third branch circuit and the fourth branch circuit are connected with the negative electrode of a power supply; the other end of the main switch 13 is connected with the anode of the power supply; each electromagnet is internally provided with a coil group, and the coil group of the embodiment comprises a first coil group 1, a second coil group 2, a third coil group 3 and a fourth coil group 4; the first coil group 1, the second coil group 2, the third coil group 3 and the fourth coil group 4 comprise a first coil, a second coil, a third coil and a fourth coil; the first coil group comprises a first coil 1-1, a second coil 1-2, a third coil 1-3 and a fourth coil 1-4; the second coil group comprises a first coil 2-1, a second coil 2-2, a third coil 2-3 and a fourth coil 2-4; the third coil group comprises a first coil 3-1, a second coil 3-2, a third coil 3-3 and a fourth coil 3-4; the fourth coil group comprises a first coil 4-1, a second coil 4-2, a third coil 4-3 and a fourth coil 4-4; a first coil 1-1 of a first coil group 1, a first coil 2-1 of a second coil group 2, a first coil 3-1 of a third coil group 3 and a first coil 4-1 of a fourth coil group 4 are connected in parallel, and then connected in series with a contact 5-2 of a first contactor and then connected between the positive pole and the negative pole of a power supply; the second coil 1-2 of the first coil group 1, the second coil 2-2 of the second coil group 2, the second coil 3-2 of the third coil group 3 and the second coil 4-2 of the fourth coil group 4 are connected in parallel, and then are connected in series with the contact 6-2 of the second contactor and then are connected between the positive pole and the negative pole of the power supply; a third coil 1-3 of the first coil group 1, a third coil 2-3 of the second coil group 2, a third coil 3-3 of the third coil group 3 and a third coil 4-3 of the fourth coil group 4 are connected in parallel, and then connected in series with a contact 7-2 of a third contactor and then connected between the positive pole and the negative pole of a power supply; the fourth coil 1-4 of the first coil group 1, the fourth coil 2-4 of the second coil group 2, the fourth coil 3-4 of the third coil group 3 and the fourth coil 4-4 of the fourth coil group 4 are connected in parallel, and then connected in series with the contact 8-2 of the fourth contactor and then connected between the anode and the cathode of the power supply.

During hoisting, the main switch 13 is pressed, at the moment, the coil 5-1 of the first contactor, the coil 6-1 of the second contactor, the coil 7-1 of the third contactor and the coil 8-1 of the fourth contactor are all electrified, the contact 5-2 of the first contactor, the contact 6-2 of the second contactor, the contact 7-2 of the third contactor and the contact 8-2 of the fourth contactor are closed, the first coil group 1, the second coil group 2, the third coil group 3 and the fourth coil group 4 are all electrified, and at the moment, all 4 bars are sucked by four electromagnets; if 1 bar is put down, the corresponding branch switch can be rotated to a power-off state, at the moment, the contact of the corresponding contactor is disconnected, the corresponding coil group loses power, and the putting down process of the bar can be completed. Similarly, if two rods are desired to be hoisted, the other two corresponding branch switches are rotated to the power-off state, and then the main switch 13 is pressed, so that the required rods can be hoisted. Therefore, the utility model realizes the sub-control of the bar electromagnet, can conveniently meet the individual requirements of customers for extracting one or a small number of bars, greatly improves the operation efficiency, and provides a good control foundation for the lifting of the electromagnet bars of the unmanned traveling crane.

Claims (5)

1. The utility model provides a bar electro-magnet divides accuse device, includes at least one electro-magnet, its characterized in that: a coil group is arranged in the electromagnet, and each coil of the coil group is connected in series with a contact of each contactor and then is connected between the anode and the cathode of a power supply; after the coils of the contactors are connected with the respective branch switches in series, one end of each coil is connected with one end of a main switch, the other end of each coil is connected with the negative electrode of the power supply, and the other end of each main switch is connected with the positive electrode of the power supply.

2. The bar electromagnet separate control device according to claim 1, characterized in that: the number of the electromagnets is four, and the electromagnets are uniformly distributed on the cross beam along the length direction of the cross beam.

3. The bar electromagnet separate control device according to claim 1 or 2, characterized in that: the main switch is a normally open switch, the branch switches are normally closed switches, and contacts of the contactor are normally open contacts.

4. The bar electromagnet separate control device according to claim 3, characterized in that: the number of the branch switches is four, and the four branch switches comprise a first branch switch, a second branch switch, a third branch switch and a fourth branch switch; the number of the contactors is four, and the contactors comprise a first contactor, a second contactor, a third contactor and a fourth contactor; the first branch switch is connected with a coil of the first contactor in series to form a first branch circuit, the second branch switch is connected with a coil of the second contactor in series to form a second branch circuit, the third branch switch is connected with a coil of the third contactor in series to form a third branch circuit, the fourth branch switch is connected with a coil of the fourth contactor in series to form a fourth branch circuit, and after the first branch circuit, the second branch circuit, the third branch circuit and the fourth branch circuit are connected in parallel, one end of the first branch circuit is connected with one end of a main switch, and the other end of the first branch circuit, the second branch circuit, the third branch circuit and the fourth branch circuit are connected with each other in parallel, the other end of the first branch circuit is connected with a negative electrode of the power supply; the other end of the main switch is connected with the anode of the power supply.

5. The bar electromagnet separate control device according to claim 4, characterized in that: the coil group comprises a first coil group, a second coil group, a third coil group and a fourth coil group, and the first coil group, the second coil group, the third coil group and the fourth coil group respectively comprise a first coil, a second coil, a third coil and a fourth coil; the first coil of the first coil group, the first coil of the second coil group, the first coil of the third coil group and the first coil of the fourth coil group are connected in parallel, and then are connected in series with a contact of the first contactor and then are connected between the positive pole and the negative pole of the power supply; the second coil of the first coil group, the second coil of the second coil group, the second coil of the third coil group and the second coil of the fourth coil group are connected in parallel, and then are connected in series with a contact of the second contactor and then are connected between the positive electrode and the negative electrode of the power supply; the third coil of the first coil group, the third coil of the second coil group, the third coil of the third coil group and the third coil of the fourth coil group are connected in parallel, and then are connected in series with a contact of the third contactor and then are connected between the positive electrode and the negative electrode of the power supply; and the fourth coil of the first coil group, the fourth coil of the second coil group, the fourth coil of the third coil group and the fourth coil of the fourth coil group are connected in parallel and then connected in series with a contact of the fourth contactor, and then connected between the positive pole and the negative pole of the power supply.

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