Monorail crane inclined drift conveying warning device

Abstract

The utility model discloses a monorail crane inclined roadway conveying warning device, belongs to the technical field of electrical protection, and solves the problems of potential safety hazards and high labor cost caused by manual warning in the process that an existing monorail crane enters an inclined roadway for conveying. According to the utility model, the electric control unit is used for opening sound-light alarm to control the opening and closing of an air valve of the pneumatic electromagnetic valve, the pneumatic electromagnetic valve drives the pneumatic control unit, and the cylinder is used for driving the double-pulley block to rotate to control the lifting of the warning door; when the monorail crane enters an inclined drift for transportation, the electric control unit sends out a sound-light alarm, a pneumatic electromagnetic valve opening air valve coil is electrified and connected, a cylinder ejector rod is pushed to move, a driving pulley is driven to move, a driving wheel and a driven wheel slide along with the driving pulley through a steel wire rope, a folding door is stretched downwards, and a warning door is closed. The safety alert door can be automatically closed when the monorail crane is in inclined roadway conveying and can be automatically opened after conveying is finished, potential safety hazards existing in manual alert are reduced, and labor cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to electrical protection technical field relates to a single track hangs oblique roadway haulage warning device. BACKGROUND

[0002] Single track hangs the car is one kind of important transport equipment in coal mine operation, mainly used for the transportation of underground materials and equipment. Single track hangs the car is installed on the single track track, moves along the track horizontally, is used for transporting coal, rock, equipment or other materials, and the use of single track hangs the car effectively improves the transportation efficiency and operation safety of coal mine.

[0003] The inclined roadway is an inclined mine passage, which is used for connecting the ground with the different depths of the flat roadway in the underground mine. The inclined roadway is often used for transporting ore, personnel, equipment and the like to the underground mine or the ground. In order to reduce the risk of accidents in the coal mine, the principle of "no person driving and no driving person" is followed in the transportation of the inclined roadway in the coal mine. In the safety facilities of the inclined roadway transportation, the sound and light alarm and the warning door play a crucial role. As safety facilities, the sound and light alarm sends a warning signal, and the warning door is used to isolate the personnel in the inclined roadway from the single track car, so as to further enhance the safety measures and reduce the risk of accidents.

[0004] The existing safety measures are that, before the single track car enters the inclined roadway for transportation, the warning net is manually pulled and the sound and light alarm is manually turned on through telephone or voice broadcast after contact. After the single track car drives into the flat roadway through the inclined roadway, the warning net is manually pulled back and the sound and light alarm is manually turned off through voice contact. The existing safety measures not only affect the work efficiency, but also increase the labor cost and labor intensity. At the same time, in the case that the two parties do not contact clearly, the information transmission is not clear, which easily causes safety hazards. UTILITY MODEL CONTENTS

[0005] The technical scheme of the utility model is used to solve the problem of manual warning, safety hazards and high labor cost in the process of the existing single track car entering the inclined roadway for transportation.

[0006] The utility model solves the above technical problems through the following technical scheme:

[0007] A single track hangs the inclined roadway haulage warning device, which comprises a single track car, an inclined track, an electric control unit, a gas control unit and a warning door.

[0008] The electric control unit includes a PLC, a first intermediate relay, a second intermediate relay, a warning light, an alarm and a pneumatic electromagnetic valve; the first intermediate relay includes a first intermediate relay coil and a first intermediate relay normally open contact, and the second intermediate relay includes a second intermediate relay coil and a second intermediate relay normally open contact; a Q0.0 port of the PLC is connected with one end of the first intermediate relay coil, a Q0.1 port of the PLC is connected with one end of the second intermediate relay coil, a Q0.2 port of the PLC is connected with one end of the warning light, a Q0.3 port of the PLC is connected with one end of the alarm, and the other ends of the first intermediate relay coil, the second intermediate relay coil, the warning light and the alarm are connected together and then connected with a negative electrode of the PLC.

[0009] The pneumatic control unit includes a pneumatic cylinder, a pneumatic cylinder top rod, a driving pulley, a double pulley block, a first lifting pulley and a second lifting pulley; the double pulley block includes a driving wheel and a driven wheel; an air inlet interface of the pneumatic cylinder is connected with an air inlet of the pneumatic electromagnetic valve, an air return interface of the pneumatic cylinder is connected with an air outlet of the pneumatic electromagnetic valve, a bottom of the pneumatic cylinder is fixedly installed on the ground, a top of the pneumatic cylinder is slidably connected with a movable end of the pneumatic cylinder top rod, a fixed end of the pneumatic cylinder top rod is fixedly connected with the driving pulley, the driving wheel and the driven wheel are coaxially arranged, the driving wheel is slidably connected with the first lifting pulley through a steel wire rope, and the driven wheel is slidably connected with the second lifting pulley through a steel wire rope; and the first lifting pulley and the second lifting pulley are installed on a top of the warning door.

[0010] The warning door includes a folding door, a door opening to position sensor and a door closing to position sensor; the bottom of the folding door is connected with the first lifting pulley and the second lifting pulley through two steel wire ropes respectively, the door opening to position sensor and the door closing to position sensor are arranged on a side of the folding door, the door opening to position sensor is arranged at a corresponding position when the folding door is completely folded, and the door closing to position sensor is arranged at a corresponding position when the folding door has a maximum stretching opening degree.

[0011] Further, the pneumatic electromagnetic valve includes a door opening pneumatic valve coil, a door closing pneumatic valve coil and a valve core; the door opening pneumatic valve coil is connected in series with the first intermediate relay normally open contact, a non-series end of the door opening pneumatic valve coil is connected with a negative electrode of the PLC, and a non-series end of the first intermediate relay normally open contact is connected with a positive electrode of the PLC; the door closing pneumatic valve coil is connected in series with the second intermediate relay normally open contact, a non-series end of the door closing pneumatic valve coil is connected with the negative electrode of the PLC, and a non-series end of the second intermediate relay normally open contact is connected with the positive electrode of the PLC; and an air inlet of the valve core is connected with the air inlet interface of the pneumatic cylinder through an air pipe, and an air outlet of the valve core is connected with the air return interface of the pneumatic cylinder through the air pipe.

[0012] Further, a magnet is installed on the car body of the single-track hanging locomotive, an upper opening magnetic induction switch is arranged at an upper opening of the inclined lane track, and a lower opening magnetic induction switch is arranged at a lower opening of the inclined lane track.

[0013] Further, the I0.0 port of the PLC is connected with one end of the upper magnetic induction switch, the I0.1 port of the PLC is connected with one end of the lower magnetic induction switch, and the other end of the upper magnetic induction switch and the other end of the lower magnetic induction switch are both connected with the positive electrode of the PLC.

[0014] Further, the I0.2 port of the PLC is connected with one end of the door opening to position sensor, the I0.3 port of the PLC is connected with one end of the door closing to position sensor, and the other end of the door opening to position sensor and the other end of the door closing to position sensor are both connected with the positive electrode of the PLC.

[0015] Further, the model of the PLC is DVP-14SS.

[0016] The utility model discloses the advantages are:

[0017] The utility model discloses a safety warning door for monorail car, which comprises a PLC, a first intermediate relay coil, a first intermediate relay normally open contact, a second intermediate relay coil, a second intermediate relay normally open contact, a warning light, an alarm, a door opening to position sensor, a door closing to position sensor, a door opening solenoid valve coil, a door closing solenoid valve coil, a valve core, a cylinder, a cylinder top rod, a driving pulley, a double pulley set, a first lifting pulley, a second lifting pulley and a folding door. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the principle diagram of the safety warning device for monorail car in the inclined roadway of the utility model embodiment one;

[0019] Fig. 1 is a schematic diagram of the safety warning device for monorail car in the inclined roadway of the utility model embodiment one; DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0021] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0022] Example 1

[0023] like Figure 1 As shown, specifically, a monorail crane inclined tunnel warning device is disclosed, including a monorail crane locomotive, an inclined tunnel track, an electric control unit, a pneumatic control unit and a warning door;

[0024] The electronic control unit includes a PLC1, a first intermediate relay, a second intermediate relay, a warning light 41, an alarm 42 and a pneumatic solenoid valve; the first intermediate relay includes a first intermediate relay coil 21 and a first intermediate relay normally open contact 22, and the second intermediate relay includes a second intermediate relay coil 31 and a second intermediate relay normally open contact 32; the Q0.0 port of the PLC1 is connected to one end of the first intermediate relay coil 21, the Q0.1 port of the PLC1 is connected to one end of the second intermediate relay coil 31, the Q0.2 port of the PLC1 is connected to one end of the warning light 41, and the Q0.3 port of the PLC1 is connected to one end of the alarm 42. The other ends of the first intermediate relay coil 21, the second intermediate relay coil 31, the warning light 41 and the alarm 42 are connected together and then connected to the negative pole of the PLC1;

[0025] The pneumatic solenoid valve includes an opening valve coil 51, a closing valve coil 52 and a valve core 53; the opening valve coil 51 is connected in series with the normally open contact 22 of the first intermediate relay, the non-series end of the opening valve coil 51 is connected to the negative pole of PLC1, the non-series end of the normally open contact 22 of the first intermediate relay is connected to the positive pole of PLC1, the closing valve coil 52 is connected in series with the normally open contact 32 of the second intermediate relay, the non-series end of the closing valve coil 52 is connected to the negative pole of PLC1, the non-series end of the normally open contact 32 of the second intermediate relay is connected to the positive pole of PLC1, the air inlet of the valve core 53 is connected to the air inlet interface of the cylinder 61 through the air pipe, and the exhaust port of the valve core 53 is connected to the return air interface of the cylinder 61 through the air pipe.

[0026] In the embodiment, the electric control unit is used for opening and closing the air valve of the pneumatic electromagnetic valve and sending sound and light alarm, the PLC 1 provides DC 12V power supply, and provides power supply for the pneumatic electromagnetic valve, the warning light 41 and the alarm 42; when the monorail hanging locomotive enters the inclined roadway to start the operation, the Q0.1 port of the PLC 1 outputs high level, the second intermediate relay coil 31 is electrified to be connected, the second intermediate relay normally open contact 32 is closed, the door closing air valve coil 52 of the pneumatic electromagnetic valve is electrified to be connected, the pneumatic electromagnetic valve uses compressed air as power to control the air control unit, and then controls the warning door to be closed, meanwhile, the Q0.2 port and the Q0.3 port of the PLC 1 output high level, the warning light 41 and the alarm 42 send sound and light alarm; conversely, when the monorail hanging locomotive ends the operation in the inclined roadway and enters the flat roadway, the Q0.2 port and the Q0.3 port of the PLC 1 lose power to stop the alarm, the Q0.0 port outputs high level, the first intermediate relay coil 21 is electrified to be connected, the door opening air valve coil 51 of the pneumatic electromagnetic valve is electrified to be connected, the pneumatic electromagnetic valve controls the air control unit, and then controls the warning door to be opened.

[0027] Specifically, the model of the PLC 1 is DVP-14SS.

[0028] The air control unit comprises a cylinder 61, a cylinder 61 top rod, a driving pulley 63, a double pulley set 64, a first lifting pulley 65 and a second lifting pulley 66; the double pulley set 64 comprises a driving wheel and a driven wheel; the air inlet interface of the cylinder 61 is connected with the air inlet of the pneumatic electromagnetic valve, the air return interface of the cylinder 61 is connected with the air outlet of the pneumatic electromagnetic valve, the bottom of the cylinder 61 is fixedly installed on the ground, the top of the cylinder 61 is slidably connected with the movable end of the cylinder 61 top rod, the fixed end of the cylinder 61 top rod is fixedly connected with the driving pulley 63, the driving wheel and the driven wheel are coaxially arranged, the driving wheel is slidably connected with the first lifting pulley 65 through a steel wire rope, and the driven wheel is slidably connected with the second lifting pulley 66 through a steel wire rope; the first lifting pulley 65 and the second lifting pulley 66 are installed on the top of the warning door.

[0029] In the embodiment, the air control unit is used for controlling the warning door to be lifted and lowered. When the monorail hanging locomotive enters the inclined roadway to start the operation, the door closing air valve coil 52 of the pneumatic electromagnetic valve is electrified, the electromagnetic force controls the spool 53 to move, allows the compressed air to enter the cylinder 61 from the pneumatic electromagnetic valve, and drives the cylinder 61 top rod to move; when the monorail hanging locomotive ends the operation in the inclined roadway, the spool 53 moves, the compressed air is discharged from the pneumatic electromagnetic valve, and the cylinder 61 top rod is retracted.

[0030] The warning door includes a folding door 71, a door opening to position sensor 72 and a door closing to position sensor 73; the bottom of the folding door 71 is connected with the first lifting pulley 65 and the second lifting pulley 66 through two steel wires respectively, the door opening to position sensor 72 and the door closing to position sensor 73 are arranged on the side of the folding door 71, the door opening to position sensor 72 is arranged at the corresponding position when the folding door 71 is completely folded, and the door closing to position sensor 73 is arranged at the corresponding position when the folding door 71 is stretched to the maximum opening degree.

[0031] In the embodiment, the driving pulley 63 is fixed on the top rod of the air cylinder 61, the driving pulley 63 changes the rotating direction of the double pulley block 64 through the steel wire, drives the coaxial driven pulley to rotate together by controlling the driving pulley, the driving pulley is slidably connected with the first lifting pulley 65 through the steel wire, and the driven pulley is slidably connected with the second lifting pulley 66 through the steel wire, so that the double pulley block 64 and the lifting pulley can be driven to rotate synchronously by the displacement of the top rod of the air cylinder 61 and the driving pulley 63, and the bottom of the folding door 71 is connected with the top lifting pulley through the steel wire, so that the opening or closing of the folding door 71 can be further driven by the displacement of the driving pulley 63.

[0032] Further, the single-track overhead vehicle is provided with a magnet, the upper opening of the inclined track is provided with an upper opening magnetic induction switch, and the lower opening of the inclined track is provided with a lower opening magnetic induction switch.

[0033] Further, the I0.0 port of the PLC1 is connected with one end of the upper opening magnetic induction switch, the I0.1 port of the PLC1 is connected with one end of the lower opening magnetic induction switch, and the other end of the upper opening magnetic induction switch and the other end of the lower opening magnetic induction switch are both connected with the positive electrode of the PLC1.

[0034] In the embodiment, when the single-track overhead vehicle enters the inclined track for operation, the I0.0 port of the PLC1 receives the electric signal sent by the upper opening magnetic induction switch at the upper opening position of the inclined track, determines that the single-track overhead vehicle enters the inclined track, and should perform the closing operation of the warning door; when the single-track overhead vehicle ends the operation in the inclined track, the I0.1 port of the PLC1 receives the electric signal sent by the lower opening magnetic induction switch at the lower opening position of the inclined track, determines that the single-track overhead vehicle enters the flat track, and should perform the opening operation of the warning door.

[0035] Further, the I0.2 port of the PLC1 is connected with one end of the door opening to position sensor 72, the I0.3 port of the PLC1 is connected with one end of the door closing to position sensor 73, and the other end of the door opening to position sensor 72 and the other end of the door closing to position sensor 73 are both connected with the positive electrode of the PLC1.

[0036] In this embodiment, the I0.2 port of the PLC1 receives the electric signal sent by the door open to position sensor 72, at this time the folding door 71 is completely folded, the warning door is completely opened, and the monorail hoist vehicle is allowed to pass; the I0.3 port of the PLC1 receives the electric signal sent by the door close to position sensor 73, at this time the folding door 71 is stretched to the maximum opening, the warning door is completely closed, and the monorail hoist vehicle is forbidden to pass.

[0037] Working principle:

[0038] When the monorail hoist vehicle enters the inclined lane to start the operation, the upper magnetic induction switch receives the magnet signal, inputs the electric signal into the I0.0 port of the PLC1, at this time the monorail hoist vehicle enters the inclined lane, the Q0.1, Q0.2 and Q0.3 ports of the PLC1 output high level, the warning light 41 and the alarm 42 emit sound and light alarm, the second intermediate relay coil 31 is energized to be connected, the second intermediate relay normally open contact 32 is closed, the door closing air valve coil 52 of the pneumatic electromagnetic valve is energized to be connected and automatically de-energized after 1s, the valve core 53 moves under the action of electromagnetic force, the compressed air enters the air cylinder 61 from the pneumatic electromagnetic valve through the air pipe, the air cylinder 61 top rod is moved, the driving pulley 63 is displaced, the driving pulley 63 is followed by the driving pulley 63, the folding door 71 is stretched downward, and the warning door is closed, when the folding door 71 is stretched to the maximum opening, the door close to position sensor 73 sends the door close to position electric signal into the I0.3 port of the PLC1.

[0039] When the monorail hoist vehicle ends the inclined lane operation and enters the flat lane, the lower magnetic induction switch receives the magnet signal, inputs the electric signal into the I0.1 port of the PLC1, the Q0.2 and Q0.3 ports of the PLC1 are de-energized to stop the alarm, the Q0.0 port outputs high level, the first intermediate relay coil 21 is energized to be connected, the door opening air valve coil 51 of the pneumatic electromagnetic valve is energized to be connected and automatically de-energized after 1s, the valve core 53 discharges the compressed air from the pneumatic electromagnetic valve under the action of electromagnetic force, the air cylinder 61 top rod is retracted, the driving pulley 63 is displaced, the driving pulley 63 is followed by the driving pulley 63, the folding door 71 is folded upward, and the warning door is opened, when the folding door 71 is completely folded, the door open to position sensor 72 sends the door open to position electric signal into the I0.2 port of the PLC1.

[0040] The above embodiment is only used to illustrate the technical scheme of the utility model, and is not limited thereto; although the utility model has been described in detail with reference to the foregoing embodiment, those skilled in the art should understand that the technical scheme recorded in the foregoing embodiment can be modified, or part of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the utility model.

Claims

1. A single track hoist inclined lane operation warning device, comprising a single track hoist vehicle and an inclined lane track, characterized in that, Also include electric control unit, pneumatic control unit and warning door; The electric control unit includes PLC (1), first intermediate relay, second intermediate relay, warning light (41), alarm (42) and pneumatic electromagnetic valve; The first intermediate relay includes first intermediate relay coil (21) and first intermediate relay normally open contact (22), and the second intermediate relay includes second intermediate relay coil (31) and second intermediate relay normally open contact (32); The Q0.0 port of PLC (1) is connected with one end of first intermediate relay coil (21), the Q0.1 port of PLC (1) is connected with one end of second intermediate relay coil (31), the Q0.2 port of PLC (1) is connected with one end of warning light (41), the Q0.3 port of PLC (1) is connected with one end of alarm (42), and the other end of first intermediate relay coil (21), second intermediate relay coil (31), warning light (41) and alarm (42) is connected together and then connected with the negative electrode of PLC (1); The pneumatic control unit includes cylinder (61), cylinder (61) top rod, drive pulley (63), double pulley block (64), first lifting pulley (65) and second lifting pulley (66); The double pulley block (64) includes driving wheel and driven wheel; The air inlet of cylinder (61) is connected with the air inlet of pneumatic electromagnetic valve, the air return interface of cylinder (61) is connected with the exhaust port of pneumatic electromagnetic valve, the bottom of cylinder (61) is fixedly installed on the ground, the top of cylinder (61) is slidably connected with the movable end of cylinder (61) top rod, the fixed end of cylinder (61) top rod is fixedly connected with drive pulley (63), the driving wheel and the driven wheel are coaxially arranged, the driving wheel is slidably connected with first lifting pulley (65) through steel wire rope, and the driven wheel is slidably connected with second lifting pulley (66) through steel wire rope, and the first lifting pulley (65) and the second lifting pulley (66) are installed on the top of the warning door; The warning door includes folding door (71), door opening to position sensor (72) and door closing to position sensor (73); The bottom of folding door (71) is connected with first lifting pulley (65) and second lifting pulley (66) through two steel wire ropes respectively, the door opening to position sensor (72) and the door closing to position sensor (73) are arranged on the side of folding door (71), the door opening to position sensor (72) is arranged at the corresponding position when folding door (71) is completely folded, and the door closing to position sensor (73) is arranged at the corresponding position when the maximum stretching opening degree of folding door (71) is reached.

2. A single rail haulage and warning device according to claim 1, characterised in that, The pneumatic electromagnetic valve comprises an opening air valve coil (51), a closing air valve coil (52) and a valve core (53); the opening air valve coil (51) is connected in series with a first intermediate relay normally open contact (22), the non-series end of the opening air valve coil (51) is connected with a negative pole of a PLC (1), the non-series end of the first intermediate relay normally open contact (22) is connected with a positive pole of the PLC (1), the closing air valve coil (52) is connected in series with a second intermediate relay normally open contact (32), the non-series end of the closing air valve coil (52) is connected with the negative pole of the PLC (1), the non-series end of the second intermediate relay normally open contact (32) is connected with the positive pole of the PLC (1), and the air inlet of the valve core (53) is connected with an air inlet interface of an air cylinder (61) through an air pipe, and the air outlet of the valve core (53) is connected with an air return interface of the air cylinder (61) through the air pipe.

3. A single track overhead inclined drift haulage warning device according to claim 2, characterised in that, The single-track hoist vehicle is provided with a magnet, the upper opening of the inclined track is provided with an upper opening magnetic induction switch, and the lower opening of the inclined track is provided with a lower opening magnetic induction switch.

4. A single track overhead inclined drift haulage warning device according to claim 3, characterised in that, One end of the upper opening magnetic induction switch is connected with an I0.0 port of the PLC (1), one end of the lower opening magnetic induction switch is connected with an I0.1 port of the PLC (1), and the other end of the upper opening magnetic induction switch and the other end of the lower opening magnetic induction switch are both connected with a positive pole of the PLC (1).

5. A single track overhead inclined drift haulage warning device according to claim 1, characterised in that, One end of a door opening in-position sensor (72) is connected with an I0.2 port of the PLC (1), one end of a door closing in-position sensor (73) is connected with an I0.3 port of the PLC (1), and the other end of the door opening in-position sensor (72) and the other end of the door closing in-position sensor (73) are both connected with the positive pole of the PLC (1).

6. A single rail hoist inclined lane playing and guarding device according to claim 1, characterized in that, The model of the PLC (1) is DVP-14SS.

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