Portal crane interlocking device suitable for intelligent dry separator

Abstract

The utility model belongs to the technical field of intelligent dry separator fault protection, and aims to solve the problem that the whole dry separator is stopped due to poor contact of a travel switch or electric leakage caused by line damage. According to the door machine interlocking device suitable for the intelligent dry separator, a door machine interlocking proximity switch is arranged above a protective door of the dry separator, and a door machine interlocking trigger piece is fixedly connected to the protective door of the dry separator and is attached to and parallel to the outer surface of the protective door; the door machine interlocking trigger piece extends to the position above the dry separator protective door, the upper end of the door machine interlocking trigger piece is located at the height where the door machine interlocking proximity switch is located, and the induction end of the door machine interlocking proximity switch is flush with the outer surface of the dry separator protective door. The door machine interlocking proximity switch is powered by a 24V power supply, and the relay is electrically connected with the door machine interlocking proximity switch and the PLC. The device is simple in structure, low in material price and easy to install, can fundamentally solve the problems that a large amount of coal dust exists in the intelligent sorting machine, splashing carbon blocks abrade lines and the like, reduces the equipment failure rate, and improves safety benefits.

Description

Technical Field

[0001] The utility model belongs to the technical field of fault protection of intelligent dry sorting machines, and in particular relates to a door machine interlocking device suitable for intelligent dry sorting machines. Background Art

[0002] During the operation of the X-ray ore intelligent sorting machine installed in the dynamic screening workshop of the coal preparation plant, the "optical machine connection failure" failure often occurs, resulting in the inability to start the machine normally or sudden stopping. After checking one by one, it was found that the door machine interlocking device of the equipment failed, and the system defaulted that the protective door was not closed. Due to the radiation hazard of the X-ray machine, the protective door must be effectively closed during its operation, otherwise the machine cannot be started. The door machine interlocking device is the key equipment to achieve this function. Once a failure occurs, it will not self-check and will not start.

[0003] Since the dry sorting machine uses high-pressure air jet blowing, smaller carbon blocks will be irregularly ejected in the sorting machine due to excessive force, which will wear the door machine interlocking device circuit. Once the circuit outer skin is damaged and leaks electricity, the whole machine will trip and stop. In addition, high-pressure wind will cause a lot of secondary coal dust. Although there are dust removal facilities, coal dust is still inevitably accumulated in the travel switch of the door machine interlocking device, resulting in poor contact of the travel switch and such accidents, which seriously affect the normal operation of production. Utility Model Content

[0004] In order to solve at least one of the above technical problems existing in the prior art, the utility model provides a door machine interlocking device suitable for an intelligent dry sorting machine.

[0005] The utility model is implemented by the following technical scheme: a door machine interlock device suitable for an intelligent dry sorting machine, comprising a door machine interlock proximity switch, a door machine interlock trigger, a PLC controller, a relay and a 24V power supply; the door machine interlock proximity switch is arranged above the protective door of the dry sorting machine, the door machine interlock trigger is fixedly connected to the protective door of the dry sorting machine and is parallel to the outer surface of the protective door, the door machine interlock trigger extends to the top of the protective door of the dry sorting machine and the upper end is located at the height of the door machine interlock proximity switch, and the sensing end of the door machine interlock proximity switch is flush with the outer surface of the protective door of the dry sorting machine; the door machine interlock proximity switch is powered by a 24V power supply, and the relay is electrically connected to the door machine interlock proximity switch and the PLC controller.

[0006] Preferably, a sheet-like member is fixedly connected to the upper end of the dry separator, and the door machine interlock proximity switch is mounted on the sheet-like member and the sensing end is located outside the sheet-like member.

[0007] Preferably, the door machine interlock trigger is a strip-shaped sheet structure, and the lower part of the door machine interlock trigger is fixedly connected to the protective door of the dry sorting machine through an anchor.

[0008] Preferably, the dry sorting machine is provided with a protective door on each of the front and rear sides, the door interlock proximity switch includes a proximity switch SQ1 and a proximity switch SQ2, and the relay includes a relay KA1 and a relay KA2; wherein the proximity switch SQ1 and the door interlock trigger I are correspondingly installed above the front protective door, and the proximity switch SQ2 and the door interlock trigger II are correspondingly installed above the rear protective door;

[0009] The 1# and 2# terminal wires of the proximity switch SQ1 are connected to a 24V power supply, the 3# terminal wire of the proximity switch SQ1 is connected to a first end of the coil of the relay KA1, and the second end of the coil of the relay KA1 is connected to the negative electrode of the power supply;

[0010] The 1# and 2# terminal lines of the proximity switch SQ2 are connected to a 24V power supply, the 3# terminal line of the proximity switch SQ2 is connected to a first end of the coil of the relay KA2, and the second end of the coil of the relay KA2 is connected to the negative electrode of the power supply;

[0011] The parallel circuit of the two groups of normally open contacts of relay KA1 and the parallel circuit of the two groups of normally open contacts of relay KA2 are connected in series and then connected to the PLC controller. The parallel circuit of the two groups of normally closed contacts of relay KA1 and the parallel circuit of the two groups of normally closed contacts of relay KA2 are connected in parallel and then connected to the PLC controller.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device has a simple structure, low-cost materials and is easy to install. It can fundamentally solve the problems of large coal dust, splashing carbon blocks and wear lines in the intelligent sorting machine, reduce equipment failure rate and improve safety benefits. It is suitable for all intelligent dry sorting machines with ray identification and internal door interlocking devices, and can also provide a solution for all equipment with this type of problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of this embodiment;

[0016] Figure 2 4 is a circuit control principle diagram of this embodiment.

[0017] In the figure: 1-door machine interlock proximity switch; 2-door machine interlock trigger I; 3-door machine interlock trigger II; 4-PLC controller; 5-sheet component; 6-dry sorting machine protection door. DETAILED DESCRIPTION

[0018] Combined with the drawings in the embodiments of the utility model, the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented, so they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention. It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0020] The utility model provides an embodiment:

[0021] A door machine interlock device suitable for an intelligent dry sorting machine comprises a door machine interlock proximity switch 1, a door machine interlock trigger, a PLC controller 4, a relay and a 24V power supply; the door machine interlock proximity switch 1 is arranged above the dry sorting machine protective door, the door machine interlock trigger is fixedly connected to the dry sorting machine protective door and is parallel to the outer surface of the protective door, the door machine interlock trigger extends to the top of the dry sorting machine protective door and the upper end is located at the height of the door machine interlock proximity switch 1, and the sensing end of the door machine interlock proximity switch 1 is flush with the outer surface of the dry sorting machine protective door; the door machine interlock proximity switch 1 is powered by a 24V power supply, and the relay is electrically connected to the door machine interlock proximity switch 1 and the PLC controller 4.

[0022] In this embodiment, a sheet 5 is fixedly connected to the upper end of the dry sorting machine, and the door interlock proximity switch 1 is installed on the sheet 5 and the sensing end is located outside the sheet 5. The door interlock trigger is a strip-shaped sheet structure, and the lower part of the door interlock trigger is fixedly connected to the dry sorting machine protective door through an anchor. The door interlock trigger is used to be within the action range of the sensing end of the door interlock proximity switch 1 when the dry sorting machine protective door is closed;

[0023] In this embodiment, the dry sorting machine is provided with a protective door on each of the front and rear sides, the door interlock proximity switch 1 includes a proximity switch SQ1 and a proximity switch SQ2, and the relay includes a relay KA1 and a relay KA2; wherein the proximity switch SQ1 and the door interlock trigger I2 are correspondingly installed above the front protective door, and the proximity switch SQ2 and the door interlock trigger I I3 are correspondingly installed above the rear protective door;

[0024] The 1# and 2# terminal wires of the proximity switch SQ1 are connected to a 24V power supply, the 3# terminal wire of the proximity switch SQ1 is connected to a first end of the coil of the relay KA1, and the second end of the coil of the relay KA1 is connected to the negative electrode of the power supply;

[0025] The 1# and 2# terminal lines of the proximity switch SQ2 are connected to a 24V power supply, the 3# terminal line of the proximity switch SQ2 is connected to a first end of the coil of the relay KA2, and the second end of the coil of the relay KA2 is connected to the negative electrode of the power supply;

[0026] The parallel circuit of the two groups of normally open contacts of relay KA1 and the parallel circuit of the two groups of normally open contacts of relay KA2 are connected in series and then connected to the PLC controller 4. The parallel circuit of the two groups of normally closed contacts of relay KA1 and the parallel circuit of the two groups of normally closed contacts of relay KA2 are connected in parallel and then connected to the PLC controller 4.

[0027] Depend on Figure 2 As shown, when both protective doors are closed and the door machine interlock proximity switch encounters an obstacle, the positive voltage is output from the 3# terminals of SQ1 and SQ2, and the coils of relays KA1 and KA2 are energized and attracted, and the parallel circuit of the two groups of normally open contacts of relay KA1 and the parallel circuit of the two groups of normally open contacts of relay KA2 are connected, and the high-level signal is input to the first input terminal of the PLC controller 4. The control program of the PLC controller 4 remains in the on state, and the X-ray machine of the dry sorting machine works; the parallel circuit of the two groups of normally closed contacts of relay KA1 and the parallel circuit of the two groups of normally closed contacts of relay KA2 are disconnected, and the PLC controller 4 controls the dry sorting machine not to alarm.

[0028] In other cases, the first input terminal of the PLC controller 4 receives a low-level signal to control the X-ray machine of the dry sorting machine to stop working; at the same time, the parallel circuit of the two groups of normally closed contacts of the relay KA1 and the parallel circuit of the two groups of normally closed contacts of the relay KA2 are connected in at least one way, and the high-level signal is input to the second input terminal of the PLC controller 4, and the PLC controller 4 controls the dry sorting machine to alarm.

[0029] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A door interlocking device suitable for an intelligent dry sorting machine, characterized in that: It includes a door machine interlock proximity switch (1), a door machine interlock trigger, a PLC controller (4), a relay and a 24V power supply; The door machine interlock proximity switch (1) is arranged above the dry sorting machine protective door, the door machine interlock trigger is fixedly connected to the dry sorting machine protective door and is parallel to the outer surface of the protective door, the door machine interlock trigger extends to the top of the dry sorting machine protective door and the upper end is located at the height of the door machine interlock proximity switch (1), and the sensing end of the door machine interlock proximity switch (1) is flush with the outer surface of the dry sorting machine protective door; The door machine interlock proximity switch (1) is powered by a 24V power supply, and the relay is electrically connected to the door machine interlock proximity switch (1) and the PLC controller (4).

2. According to claim 1, a door interlocking device suitable for an intelligent dry sorting machine is characterized in that: The upper end of the dry separator is fixedly connected with a sheet-like member (5), and the door machine interlock proximity switch (1) is installed on the sheet-like member (5) with the sensing end located outside the sheet-like member (5).

3. According to claim 1, a door interlocking device suitable for an intelligent dry sorting machine is characterized in that: The door machine interlock trigger is a strip-shaped sheet structure, and the lower part of the door machine interlock trigger is fixedly connected to the dry sorting machine protective door through an anchor.

4. According to claim 1, a door interlocking device suitable for an intelligent dry sorting machine is characterized in that: The dry separator is provided with a protective door on both the front and rear sides, the door interlock proximity switch (1) includes a proximity switch SQ1 and a proximity switch SQ2, and the relay includes a relay KA1 and a relay KA2; A proximity switch SQ1 and a door machine interlock trigger I (2) are installed above the front protection door, and a proximity switch SQ2 and a door machine interlock trigger II (3) are installed above the rear protection door. The 1# and 2# terminal wires of the proximity switch SQ1 are connected to a 24V power supply, the 3# terminal wire of the proximity switch SQ1 is connected to a first end of the coil of the relay KA1, and the second end of the coil of the relay KA1 is connected to the negative electrode of the power supply; The 1# and 2# terminal lines of the proximity switch SQ2 are connected to a 24V power supply, the 3# terminal line of the proximity switch SQ2 is connected to a first end of the coil of the relay KA2, and the second end of the coil of the relay KA2 is connected to the negative electrode of the power supply; The parallel circuit of the two groups of normally open contacts of relay KA1 and the parallel circuit of the two groups of normally open contacts of relay KA2 are connected in series and then connected to the PLC controller (4); the parallel circuit of the two groups of normally closed contacts of relay KA1 and the parallel circuit of the two groups of normally closed contacts of relay KA2 are connected in parallel and then connected to the PLC controller (4).

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