Horizontal swing control device for spray gun

Abstract

The utility model relates to a spray gun horizontal swing control device, which is characterized in that a driving mechanism comprises a gear, a rack and a pin hole, a rotating shaft is connected with the pin hole through a pin shaft, the rotating shaft is rotatably connected with a box body, the top end of the rotating shaft is fixedly connected with a spray gun, a driving motor and a water tank are arranged in the box body, the driving motor is connected with the gear through the pin shaft, and the gear is meshed with the rack. The high-pressure water pump is fixedly connected with the bottom of the box body and connected with the water tank through a pipeline, the spray gun and the high-pressure water pump are connected with the water pipe, and the driving motor and the high-pressure water pump are connected with the control unit. The spray gun has the advantages that the rack is driven by the driving motor to rotate, so that the spray gun swings, the spray gun swings horizontally, an operator does not need to hold the spray gun, manpower is saved, and the water spraying efficiency is improved; the driving motor, the high-pressure water pump and the travel switch are all connected with the PLC, wiring is simple, maintenance is convenient, and operation is easy.

Description

Technical Field

[0001] The utility model relates to mining equipment, in particular to a spray gun horizontal swing control device. Background Art

[0002] Due to the increasing environmental protection requirements and the promotion of green mines, dust control at mining sites has become an issue that needs to be focused on. During the mining process, a large amount of dust is raised, affecting the air quality at the work site, and has an adverse impact on the health of the workers and the surrounding environment. High-pressure spray guns are usually used on site to spray water. The direction of the spray is controlled by the operator holding the spray gun. The operator must be present on site to spray. The spraying is uneven, the effect is poor, and manpower is wasted. Summary of the invention

[0003] The utility model aims to provide a spray gun horizontal swing control device, which eliminates the need for operators to operate the spray gun by hand and improves the spraying efficiency.

[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0005] A spray gun horizontal swing control device comprises a spray gun, a driving mechanism, a driving motor, a high-pressure water pump, a box, a rotating shaft, a water tank, and a control unit. The driving mechanism comprises a gear, a rack, and a pin hole. The rotating shaft is connected to the pin hole through a pin shaft, and the rotating shaft is rotatably connected to the box body. The top of the rotating shaft is fixedly connected to the spray gun. A driving motor and a water tank are arranged in the box body. The driving motor is connected to the gear through a pin shaft, and the gear is meshed with the rack. The high-pressure water pump is fixedly connected to the bottom of the box body, and the high-pressure water pump is connected to the water tank through a pipeline. The spray gun is connected to a water pipe, and the high-pressure water pump is connected to the water pipe. The driving motor and the high-pressure water pump are connected to the control unit.

[0006] It also includes a travel switch 1 and a travel switch 2. A collision iron is arranged on the rack. The travel switch 1 and the travel switch 2 are arranged on the table of the box body and are symmetrically arranged on both sides of the rotating shaft. When the travel switch 1 or the travel switch 2 is connected with the collision iron, it is used to transmit the connection signal to the control unit.

[0007] It also includes a main circuit and a control circuit. The main circuit is connected to the control circuit, and the control circuit is connected to the control unit. The main circuit, the control circuit and the control unit are arranged in an operation box, and the operation box is arranged on the box body.

[0008] The main circuit includes main circuit one and main circuit two. Main circuit one includes overheating relay one, main contacts of the forward contactor, and circuit breaker one, which are connected to the drive motor in sequence. The main contacts of the forward contactor are connected between circuit breaker one and the drive motor to form a forward connection mode, and the main contacts of the reverse contactor are connected between circuit breaker one and the drive motor to form a reverse connection mode. Main circuit two includes overheating relay two, contactor two, and circuit breaker two, which are connected to the high-pressure water pump in sequence.

[0009] The control circuit includes a relay group 1 and a relay group 2. The coils of the relay group 1 are connected in parallel. The corresponding coils of the relay group 1 are respectively connected in series with the normally open contact of the travel switch 1, the normally open contact of the travel switch 2, and the normally open auxiliary contact of the overheating relay 1. The normally open auxiliary contact of the overheating relay 1 is connected in parallel with the normally open auxiliary contact of the overheating relay 2. The normally open contact of the relay group 2 is respectively connected with the coil of the forward contactor, the coil of the reverse contactor, and the coil of the contactor 2. The relay group 1 and the relay group 2 are connected to the control unit.

[0010] The control unit includes a CPU, a digital input module, and a digital output module. The start / stop button of the high-pressure water pump, the start / stop button of the drive motor, and the normally open contacts of relay group one are respectively connected to the digital input module through ports, and the coils of relay group two are respectively connected to the digital output module through ports.

[0011] A manual valve is provided on the pipeline.

[0012] The CPU, digital input module, and digital output module are connected through the communication port.

[0013] The control unit is PLC.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The rack is driven by the driving motor to rotate, so the spray gun can swing. The horizontal swing of the spray gun eliminates the need for operators to hold the spray gun by hand, which saves manpower and improves the efficiency of water spraying.

[0016] 2. The driving motor, high-pressure water pump and travel switch are all connected to the PLC, with simple wiring, convenient maintenance and easy operation;

[0017] 3. Connect the contactor, travel switch 1 and travel switch 2 of the main circuit to the PLC through the relay group. If the contactor, travel switch 1 and travel switch 2 fail, the corresponding port of the PLC will be prevented from being damaged, thus saving maintenance costs.

[0018] 4. The travel switches are symmetrically arranged on both sides of the rotating shaft to realize the swing and steering of the spray gun. It has a simple structure, requires little maintenance and is easy to implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the spray gun horizontal swing control device.

[0020] Figure 2 It is a schematic diagram of the AA structure of the spray gun horizontal swing control device.

[0021] Figure 3 It is a schematic diagram of the main circuit and control circuit of the spray gun horizontal swing control device.

[0022] Figure 4 This is a schematic diagram of the principle of the digital output module.

[0023] Figure 5 This is a schematic diagram of the principle of the digital input module.

[0024] Figure 6 This is a schematic diagram of the CPU principle.

[0025] In the figure: 1-high pressure spray gun 2-rotating shaft 3-driving mechanism 4-driving motor 5-operating box 6-high pressure water pump 7-water tank 8-gear 9-rack 11-strike iron 12-pin hole 13-water pipe. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the accompanying drawings of the specification, but it should be noted that the implementation of the present invention is not limited to the following embodiments.

[0027] The following examples are implemented based on the technical solution of the utility model, and provide detailed implementation methods and specific operation processes, but the protection scope of the utility model is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.

[0028] [Example 1]

[0029] See Figure 1 , Figure 2 A spray gun horizontal swing control device comprises a spray gun 1, a driving mechanism 3, a driving motor 4, a high-pressure water pump 6, a box, a rotating shaft 2, a water tank 7, a travel switch 1 to a travel switch 4, and a PLC. The driving mechanism 3 comprises a gear 8, a rack 9, and a pin hole 12. The rotating shaft 2 is connected to the pin hole 12 through a pin shaft, and the rotating shaft 2 is rotatably connected to the box. The top of the rotating shaft 2 is fixedly connected to the spray gun 1. A driving motor 4 and a water tank 7 are arranged in the box. The driving motor 4 is connected to the gear 8 through a pin shaft, and the gear 8 is meshed with the rack 9. The high-pressure water pump 6 is fixedly connected to the bottom of the box. The high-pressure water pump 6 is connected to the water tank 7 through a pipeline. The spray gun 1 is connected to a water pipe 13, and the high-pressure water pump 6 is connected to the water pipe 13. A manual valve is arranged on the pipeline; a collision iron 11 is arranged on the rack 9. Figure 2The travel switch S01, the travel switch S02, the travel switch S03, and the travel switch S04 are respectively arranged on the table of the box, and the travel switch S01 and the travel switch S02 are symmetrically arranged on both sides of the rotating shaft 2. The travel switch S03 and the travel switch S04 are respectively arranged at the over-limit position. When the travel switch S01 or the travel switch S02 or the travel switch S03 or the travel switch S04 is connected with the impact iron 11, it is used to transmit the connection signal to the PLC.

[0030] See Figure 3 to Figure 6 The main circuit includes main circuit one and main circuit two. Main circuit one includes an overheating relay F1, a main contact of a forward contactor KM01, and a circuit breaker one, which are connected in sequence with the drive motor 4. The main contact of the forward contactor KM01 is connected between the circuit breaker one and the drive motor 4 to form a forward connection mode. The main contact of the reverse contactor KM02 is connected between the circuit breaker one and the drive motor 4 to form a reverse connection mode. The main circuit two includes an overheating relay F2, a contactor two KM03, and a circuit breaker two, which are connected in sequence with the high-pressure water pump 6. The control circuit includes relay group KA01-KA05 and relay group KA06-KA08. The coils of relay group KA01-KA05 are connected in parallel. The corresponding coils of relay group KA01-KA05 are respectively connected in series with the normally open contact of travel switch one, the normally open contact of travel switch two, and the normally open auxiliary contact of overheating relay F1. The normally open auxiliary contact of overheating relay F1 is connected in parallel with the normally open auxiliary contact of overheating relay F2. The normally open contacts of relay group KA06-KA08 are respectively connected with the coil of forward contactor KM01, the coil of reverse contactor KM02, and the coil of contactor two KM03. Relay group KA01-KA05 and relay group KA06-KA08 are connected to PLC. The main circuit, control circuit, and PLC are arranged in the operation box 5, and the operation box 5 is arranged on the box body. The PLC includes a power module, a CPU, a digital input module, and a digital output module. The power module is used to provide working power. The start / stop button SB4 / SB5 of the high-pressure water pump 6, the start / stop button SB1 / SB2 / SB3 of the drive motor 4, and the normally open contacts of the relay group KA01-KA05 are respectively connected to the digital input module through ports, and the coils of the relay group KA06-KA08 are respectively connected to the digital output module through ports.

[0031] Working process:

[0032] According to the actual work needs, press the high-pressure water pump start button, the coil of the electromagnetic relay KA08 is energized, the forward or reverse start button on the water gun horizontal swing electric control device, the coil of the electromagnetic relay KA06 or KA07 is energized, the normally open contact is closed, the contactor K01 or K02 coil is energized, the main contact is closed, and the drive motor is powered on to start. If the work needs to press the manual stop button, the contactor coil is de-energized, and the drive motor is de-energized and stopped.

[0033] After normal manual start, the operator rotates the conversion switch SK2 to the automatic position, the coil of the electromagnetic relay KA09 is energized, the normally open contact is closed, and the automatic swing back operation is started; when the motor drives the swing disc to rotate to the position where the forward limit stroke S01 switch is installed, the iron on the disc will trigger the forward limit stroke switch S01, closing its normally open contact, energizing the coil of the electromagnetic relay KA01, and stopping the forward start; at the same time, the delayed connection and the reverse start are turned on; after the motor drives the swing disc to rotate to the position where the reverse limit stroke switch is installed, the iron triggers the reverse limit stroke switch S02, closing its normally open contact, energizing the coil of the electromagnetic relay KA02, and stopping the reverse start; at the same time, the delayed connection and the forward start are turned on; automatic reciprocating operation is formed. Until the operator rotates the conversion switch SK2 to the manual position, the motor will be powered off and stop running; four travel switches are needed, S01 and S02 are limit switches for forward and reverse switching operation, and S03 and S04 are limit protection switches. If S01 fails or is damaged, the impact iron will cross S01 and trigger S04, closing its normally open contacts, energizing the coil of the electromagnetic relay KA04, and starting and stopping the forward rotation, causing the motor to be powered off and stop running.

[0034] The utility model realizes the swing of the spray gun by driving the rack to rotate through the driving motor. The horizontal swing of the spray gun does not require the operator to operate the spray gun by hand, which saves manpower and improves the efficiency of water spraying. The driving motor, the high-pressure water pump and the travel switch are all connected to the PLC, which has simple wiring, convenient maintenance and easy operation. The contactor, the travel switch 1 and the travel switch 2 of the main circuit are respectively connected to the PLC through the relay group. If the contactor, the travel switch 1 and the travel switch 2 fail, the corresponding port of the PLC is prevented from being damaged, thus saving maintenance cost. The travel switches are symmetrically arranged on both sides of the rotating shaft to realize the swing and steering of the spray gun, which has a simple structure, low maintenance and is easy to implement.

Claims

1. A spray gun horizontal swing control device, characterized in that: It includes a spray gun, a driving mechanism, a driving motor, a high-pressure water pump, a box, a rotating shaft, a water tank, and a control unit. The driving mechanism includes a gear, a rack, and a pin hole. The rotating shaft is connected to the pin hole through a pin shaft, and the rotating shaft is rotatably connected to the box body. The top of the rotating shaft is fixedly connected to the spray gun. A driving motor and a water tank are arranged in the box body. The driving motor is connected to the gear through a pin shaft, and the gear is meshed with the rack. The high-pressure water pump is fixedly connected to the bottom of the box body, and the high-pressure water pump is connected to the water tank through a pipeline. The spray gun is connected to a water pipe, and the high-pressure water pump is connected to the water pipe. The driving motor and the high-pressure water pump are connected to the control unit.

2. A spray gun horizontal swing control device according to claim 1, characterized in that: It also includes a travel switch 1 and a travel switch 2. A striker is arranged on the rack. The travel switch 1 and the travel switch 2 are arranged on the table of the box body and are symmetrically arranged on both sides of the rotating shaft. When the travel switch 1 or the travel switch 2 is connected with the striker, it is used to transmit the connection signal to the control unit.

3. A spray gun horizontal swing control device according to claim 1, characterized in that: It also includes a main circuit and a control circuit. The main circuit is connected to the control circuit, and the control circuit is connected to the control unit. The main circuit, the control circuit and the control unit are arranged in an operation box, and the operation box is arranged on the box body.

4. A spray gun horizontal swing control device according to claim 3, characterized in that: The main circuit includes main circuit 1 and main circuit 2. Main circuit 1 includes overheating relay 1, main contacts of forward contactor, and circuit breaker 1 which are connected to the drive motor in sequence. The main contacts of forward contactor are connected between circuit breaker 1 and the drive motor to form a forward connection mode. The main contacts of reverse contactor are connected between circuit breaker 1 and the drive motor to form a reverse connection mode. Main circuit 2 includes overheating relay 2, contactor 2, and circuit breaker 2 which are connected to the high-pressure water pump in sequence.

5. A spray gun horizontal swing control device according to claim 3, characterized in that: The control circuit includes a relay group 1 and a relay group 2, the coils of the relay group 1 are connected in parallel, the corresponding coils of the relay group 1 are respectively connected in series with the normally open contact of the travel switch 1, the normally open contact of the travel switch 2, and the normally open auxiliary contact of the overheating relay 1, the normally open auxiliary contact of the overheating relay 1 is connected in parallel with the normally open auxiliary contact of the overheating relay 2, the normally open contact of the relay group 2 is respectively connected with the coil of the forward contactor, the coil of the reverse contactor, and the coil of the contactor 2, and the relay group 1 and the relay group 2 are connected to the control unit.

6. A spray gun horizontal swing control device according to claim 5, characterized in that: The control unit includes a CPU, a digital quantity input module, and a digital quantity output module. The start / stop button of the high-pressure water pump, the start / stop button of the drive motor, and the normally open contacts of relay group one are respectively connected to the digital quantity input module through ports, and the coils of relay group two are respectively connected to the digital quantity output module through ports.

7. A spray gun horizontal swing control device according to claim 1, characterized in that: A manual valve is arranged on the pipeline.

8. A spray gun horizontal swing control device according to claim 6, characterized in that: The CPU, digital input module, and digital output module are connected through the communication port.

9. A spray gun horizontal swing control device according to claim 1, characterized in that: The control unit is a PLC.

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