阅读说明：本技术 一种防止单轨吊剐蹭致灾的监测预警系统及方法 (Monitoring and early warning system and method for preventing single-rail hanging scratch and damage ) 是由 冯晓巍 杨厚强 于 2021-07-21 设计创作，主要内容包括：一种防止单轨吊剐蹭致灾的监测预警系统及方法,系统：两个监测预警机构分别安装在单轨吊车头的左右两侧；监测预警机构包括固定连杆A、固定连杆B、感应报警器和触发线；感应报警器包括外壳体、固定触发片、活动触发片、弹簧、感应控制器、报警器和反向刀片；方法：张紧触发线并使弹簧处于弹性拉伸状态；在锚杆索或者其他支护构件外露端阻挡住触发线时,反向刀片将触发线割断,感应控制器在检测到固定和活动触发片吸合后控制触发报警器鸣笛预警；操作人员听到报警提醒后采取应急措施防止损害。该系统和方法能够及时发现巷道两帮煤岩体的变形情况,并能自动化的进行报警提醒,以使操作人员能够及时采取有效的应对措施,起到减少灾害发生的作用。(A monitoring and early warning system and method for preventing a monorail crane from being scratched and causing disasters is disclosed, and the system comprises: the two monitoring and early warning mechanisms are respectively arranged on the left side and the right side of the head of the monorail crane; the monitoring and early warning mechanism comprises a fixed connecting rod A, a fixed connecting rod B, an induction alarm and a trigger line; the induction alarm comprises an outer shell, a fixed trigger piece, a movable trigger piece, a spring, an induction controller, an alarm and a reverse blade; the method comprises the following steps: tensioning the trigger line and placing the spring in elastic tension; when the exposed end of the anchor rod cable or other supporting components blocks the trigger line, the reverse blade cuts off the trigger line, and the induction controller controls the trigger alarm to whistle and early warn after detecting that the fixed trigger piece and the movable trigger piece are sucked; and after hearing the alarm prompt, the operator takes emergency measures to prevent damage. The system and the method can find the deformation conditions of the coal and rock bodies on the two sides of the roadway in time, and can automatically alarm and remind, so that operators can take effective countermeasures in time, and the disaster is reduced.)

1. A monitoring and early warning system for preventing a monorail crane from being scratched and causing disasters comprises two monitoring and early warning mechanisms and is characterized in that the monitoring and early warning mechanisms are arranged on the monorail crane;

the two monitoring and early warning mechanisms are arranged on the left side and the right side of the monorail crane head (2) in a bilateral symmetry manner;

the monitoring and early warning mechanism comprises two fixed connecting rods A (3), two fixed connecting rods B (6), two induction alarms (5) and two trigger lines (4);

the two fixed connecting rods A (3) are respectively arranged on the left side and the right side of the lower end of the monorail crane head (2); the length direction of the fixed connecting rod A (3) extends along the width direction of the monorail crane head (2), and the inner end of the fixed connecting rod A is fixedly connected with the outer end of the monorail crane head (2);

the two fixed connecting rods B (6) are respectively arranged at the left part and the right part above the monorail crane head (2), the lower ends of the fixed connecting rods B (6) are fixedly connected with the upper end of the monorail crane head (2), and the upper ends of the fixed connecting rods B (6) are bent outwards and then extend to the outer side of the monorail crane head (2);

the two induction alarms (5) are respectively positioned at the outer sides of the upper ends of the two fixed connecting rods B (6) and are respectively and correspondingly arranged above the outer ends of the two fixed connecting rods A (3); the induction alarm (5) comprises an outer shell (5-12), a fixed trigger piece (5-5), a movable trigger piece (5-2), a spring (5-1), an induction controller (5-6), an alarm (5-8) and a reverse blade (5-9); the inner side plate of the outer shell (5-12) is fixedly connected with the upper end part of the fixed connecting rod B (6), and the part of the bottom plate of the outer shell, which corresponds to the outer end of the fixed connecting rod A (3), is provided with a through hole (5-11); the fixed trigger piece (5-5) and the movable trigger piece (5-2) are both made of conductive metal, magnets with different magnetic poles are embedded in the fixed trigger piece and are arranged at the upper part of the inner cavity of the outer shell (5-12), the fixed trigger piece (5-5) is transversely arranged, and the upper end of the fixed trigger piece is fixedly connected with the top plate of the outer shell (5-12) through a fixed connecting rod C (5-4); the movable trigger piece (5-2) is connected below the fixed trigger piece (5-5) through two induction wires (5-3) made of insulating materials and limited in the range of being attracted with the fixed trigger piece (5-5) through the induction wires (5-3); the spring (5-1) is arranged in the inner cavity of the outer shell (5-12) and correspondingly arranged above the through hole (5-11), and the upper end of the spring is connected with the center of the lower end face of the movable contact spring piece (5-2); the induction controller (5-6) is arranged in the inner cavity of the outer shell (5-12) and is installed at the upper end of the fixed trigger piece (5-5), one detection end of the induction controller is electrically connected with the fixed trigger piece (5-5), and the other detection end of the induction controller is electrically connected with the movable trigger piece (5-2) through a lead (5-10); the alarm (5-8) is arranged outside the outer shell (5-12) and is connected with the output end of the induction controller (5-6) through a data transmission lead (5-7); the reverse blade (5-9) is arranged at the bottom of the inner cavity of the outer shell (5-12), is fixedly connected to the bottom plate of the outer shell (5-12), and has a cutting edge close to the through hole (5-11);

the two trigger lines (4) are respectively corresponding to the arrangement of the two induction alarms (5); the upper end of the trigger line (4) is connected with the lower end of the spring (5-1), the lower end of the trigger line penetrates out of the outer shell (5-12) through the through hole (5-11), and the trigger line is connected with the outer end of the fixed connecting rod A (3) after being tensioned; the trigger line (4) is in a vertical state when in a tensioning state, the spring (5-1) is elastically stretched, and the movable trigger piece (5-2) is pulled away from the suction state with the fixed trigger piece (5-5) through the spring (5-1); the trigger line (4) is in clearance fit with the cutting edge of the counter blade (5-9) in a vertical state and is in butt fit with the cutting edge of the counter blade (5-9) when the trigger line is elastically bent and tensioned.

2. The monitoring and early warning system for preventing the monorail crane from being scratched and causing disasters is characterized in that a pull ring is fixedly connected to the center of the lower end face of the movable trigger piece (5-2), and the upper end of the spring (5-1) is connected with the center of the lower end face of the movable trigger piece (5-2) through the pull ring.

3. The monitoring and early warning system for preventing monorail crane gramming according to claim 1 or 2, characterized in that the alarm (5-8) is an audible and visual alarm.

4. The monitoring and early warning system for preventing monorail crane gramming according to claim 3, characterized in that the trigger line (4) is flush with the outer boundary of the monorail crane carriage (9) in a pre-tightening state.

5. The monitoring and early warning system for preventing monorail crane scratching disasters is characterized in that the induction alarm (5) further comprises a power supply module, the power supply module is installed inside the outer shell (5-12), and the power supply module supplies direct current power to the induction controller (5-6) and the alarm (5-8) respectively.

6. The monitoring and early warning system for preventing the monorail crane from being scratched and causing disasters is characterized in that the induction controllers (5-6) are further connected with a monorail crane head (2) braking system and a monorail crane head (2) speed measuring system.

7. A monitoring and early warning method for preventing monorail crane scratch from causing disasters comprises the monitoring and early warning system for preventing monorail crane scratch from causing disasters according to claims 1 to 5, and is characterized by comprising the following steps:

the method comprises the following steps: before the monorail is hung in a roadway (1) to run, the lower end of the trigger wire (4) is tightened on the outer end of the fixed connecting rod A (3) to tension the trigger wire (4) and enable the spring (5-1) to be in an elastic stretching state, and therefore the movable trigger piece (5-2) and the fixed trigger piece (5-5) are in a separated state;

step two: in the single-rail hoisting process, if a roadway section is about to pass through a roadway side part (10) and deforms seriously, the exposed end of an anchor rod cable or other supporting members (8) blocks a trigger line (4), the trigger line (4) is bent, the trigger line (4) is in an elastic bending tensioning state at the moment, a reverse blade (5-9) cuts off the trigger line, a spring (5-1) which is originally connected with the trigger line (4) and is in an elastic stretching state is contracted into a normal loosening state, the movable trigger piece (5-2) and a fixed trigger piece (5-5) are tightly attached due to the magnetic attraction effect, under the connection effect of a lead (5-10), the tightly attached movable trigger piece (5-2) and the fixed trigger piece (5-5) are connected with two detection ends of an induction controller (5-6), and the induction controller (5-6) outputs alarm control through the output end of the induction controller after the two detection ends are short-circuited, and outputs an alarm control signal Signals are sent to a trigger alarm (5-8) to control the trigger alarm (5-8) to whistle and early warn so as to remind a driver or an operator of the monorail crane to take emergency measures;

step three: after a monorail crane driver or an operator hears the alarm (5-8) to alarm, a low-speed slow running mode is started for the monorail crane, then an emergency braking measure is taken, the monorail crane is stopped at the upstream section of the area with the excessive deformation of the roadway side part (10), and the monorail crane carriage (9) is prevented from being scraped by anchor rods or other supporting components (8); after the monorail crane stops, special constructors use special tools to carry out truncation operation and reinforcement supporting treatment on exposed ends of anchor cables or other supporting members (8) in the deformed roadway side parts (10), and after the treatment is finished, the monorail crane continues to move forward through the area until the operation is finished.

8. The monitoring and early warning method for preventing the monorail crane from being scratched and causing disasters according to claim 7, wherein in the fourth step, after the set time after the induction controller (5-6) sends out the alarm control signal, when the running speed of the monorail crane does not fall within the set range, the induction controller (5-6) sends out an emergency braking signal to the brake system of the monorail crane head (2), and the brake system of the monorail crane head (2) automatically controls the monorail crane to carry out emergency braking action after receiving the emergency braking signal, so that the monorail crane stops at the upstream section of the area with the excessive deformation of the roadway side part (10), and the monorail crane carriage (9) is prevented from being scratched by an anchor rope or other supporting components (8).

Technical Field

The invention relates to the technical field of roadway engineering such as large-deformation horizontal roadways of coal mines and the like, in particular to a monitoring and early warning system and method for preventing a monorail crane from being scratched to cause disasters.

Background

The coal mine mainly adopts the underground mining, wherein the inclined shaft exploitation mode is widely applied to the exploitation of shallow mines as one of three exploitation roadway preparation modes. Due to the increasingly complex excavation stress environment and the failure of timely supporting of the head-on side of the roadway, the two sides of the excavated roadway are moved closer in the later period, and even the roadway cannot meet the normal production requirement. The coal mine generally uses the monorail crane to transport materials and personnel used for construction in a production working face, and the width sizes of the monorail crane carriage and the monorail crane head are large, so that a certain roadway span space is needed in the operation process of the monorail crane carriage and the monorail crane head. When the approaching amount of the two sides of the roadway exceeds a certain range, the exposed ends of the constructed anchor cables of the two sides inevitably cause rubbing of the monorail crane in the running process, the inclined shaft has a certain inclination angle, the monorail crane is easy to face upwards or tip over, and accordingly unforeseen safety accidents can be caused.

In order to prevent the occurrence of the situation of scratching and causing a disaster, an existing monorail crane mostly adopts an emergency braking mode after an operator finds that the damage is reduced, the mode plays a role in reducing the possibility of occurrence of a safety accident to a certain extent, however, in a horizontal roadway with large surrounding rock deformation, the sight of the operator is limited by the environment, if the operator finds that the situation is delayed, the collision is very easy to occur, after the actual collision occurs, the carriage is often instantaneously overturned or tilted upwards, and the effective emergency safety braking is difficult to perform through related measures, so that the safety accident cannot be efficiently avoided, the existing technology cannot play a role in effectively reducing the occurrence of the disaster, and the function of early warning of early detection cannot be achieved.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a monitoring and early warning system and a method for preventing a monorail crane from being scratched to cause disasters, the system can find the deformation conditions of coal rock bodies on two sides of a roadway in time and can automatically carry out alarm reminding, so that an operator can take effective countermeasures in time, and the effect of reducing disasters can be effectively achieved. The method has simple steps, can carry out automatic early warning when the deformation of the coal and rock bodies on the two sides of the roadway exceeds the critical value of a specific range, and can help to reduce the probability of disasters.

In order to achieve the purpose, the invention provides a monitoring and early warning system for preventing a monorail crane from being scratched and causing disasters, which comprises two monitoring and early warning mechanisms, wherein the two monitoring and early warning mechanisms are arranged on the left side and the right side of a monorail crane head in a bilateral symmetry manner;

the monitoring and early warning mechanism comprises two fixed connecting rods A, two fixed connecting rods B, two induction alarms and two trigger lines;

the two fixed connecting rods A are respectively arranged on the left side and the right side of the lower end of the monorail crane head; the length direction of the fixed connecting rod A extends along the width direction of the monorail crane head, and the inner end of the fixed connecting rod A is fixedly connected with the outer end of the monorail crane head;

the two fixed connecting rods B are respectively arranged at the left part and the right part above the head of the monorail crane, the lower ends of the fixed connecting rods B are fixedly connected with the upper end of the head of the monorail crane, and the upper ends of the fixed connecting rods B are bent outwards and then extend to the outer side of the head of the monorail crane;

the two induction alarms are respectively positioned at the outer sides of the upper ends of the two fixed connecting rods B and are respectively and correspondingly arranged above the outer ends of the two fixed connecting rods A; the induction alarm comprises an outer shell, a fixed trigger piece, a movable trigger piece, a spring, an induction controller, an alarm and a reverse blade; the inner side plate of the outer shell is fixedly connected with the upper end part of the fixed connecting rod B, and a through hole is formed in the bottom plate of the outer shell at the part corresponding to the outer end of the fixed connecting rod A; the fixed trigger piece and the movable trigger piece are both made of conductive metal, magnets with different magnetic poles are embedded in the fixed trigger piece and are arranged at the upper part of the inner cavity of the outer shell, the fixed trigger piece is transversely arranged, and the upper end of the fixed trigger piece is fixedly connected with the top plate of the outer shell through a fixed connecting rod C; the movable trigger piece is connected below the fixed trigger piece through two induction wires made of insulating materials and limited in the range of being attracted with the fixed trigger piece through the induction wires; the spring is arranged in the inner cavity of the outer shell and correspondingly arranged above the through hole, and the upper end of the spring is connected with the center of the lower end face of the movable trigger piece; the induction controller is arranged in the inner cavity of the outer shell and is arranged at the upper end of the fixed trigger piece, one detection end of the induction controller is electrically connected with the fixed trigger piece, and the other detection end of the induction controller is electrically connected with the movable trigger piece through a lead; the alarm is arranged outside the outer shell and is connected with the output end of the induction controller through a data transmission lead; the reverse blade is arranged at the bottom of the inner cavity of the outer shell, is fixedly connected to the bottom plate of the outer shell, and is provided with a cutting edge close to the through hole;

the two trigger lines are respectively corresponding to the arrangement of the two induction alarms; the upper end of the trigger line is connected with the lower end of the spring, and the lower end of the trigger line penetrates out of the outer shell through the through hole and is connected with the outer end of the fixed connecting rod A after being tensioned; the trigger line is in a vertical state when in a tensioning state, the spring is elastically stretched, and the movable trigger piece is pulled away from the suction state with the fixed trigger piece through the spring; the trigger line is in clearance fit with the cutting edge of the reverse blade under the vertical state, and is in butt fit with the cutting edge of the reverse blade when the elastic bending is tensioned.

Furthermore, in order to facilitate installation and disassembly, the center of the lower end face of the movable trigger piece is fixedly connected with a pull ring, and the upper end of the spring is connected with the center of the lower end face of the movable trigger piece through the pull ring.

Furthermore, in order to improve the reminding effect, the alarm is an audible and visual alarm.

Further, in order to guarantee accurate monitoring effect, the trigger line is kept flat with the outer boundary of the monorail crane carriage in the pre-tightening state.

Preferably, the induction alarm further comprises a power module, wherein the power module is installed inside the outer shell and is used for supplying direct-current power to the induction controller and the alarm respectively.

Further, the induction controller is also connected to the monorail head brake system and the monorail head speed measurement system in order to obtain the monorail travel speed in real time and to automatically send an emergency brake signal to the monorail head brake system in an emergency situation.

In this technical scheme, set up two monitoring early warning mechanisms through the left and right sides at the monorail crane locomotive to adopt two trigger lines monitoring in the wall of roadway stock cable or other to strut the distance that the component reaches the monorail crane carriage, just can be automatic monitor the deformation condition of wall of roadway portion in advance, and can carry out timely warning of whistling through the alarm when the not satisfied current condition of deflection, so that monorail crane driver or operator can in time take the security of effectual emergency braking measure guarantee operation. The system is simple in structure, low in manufacturing cost, convenient and quick to install on the original basis, and convenient to popularize and apply on a large scale. The method can accurately monitor the deformation condition of the coal rock mass on two sides of the roadway, and can effectively play a role in reducing disasters.

The invention also provides a monitoring and early warning method for preventing the single-rail hoisting damage caused by rubbing, which comprises a monitoring and early warning system for preventing the single-rail hoisting damage caused by rubbing, and is characterized by comprising the following steps:

the method comprises the following steps: before the monorail crane runs in a roadway, the lower end of the trigger wire is tightened on the outer end of the fixed connecting rod A to tension the trigger wire and enable the spring to be in an elastic stretching state, and therefore the movable trigger piece and the fixed trigger piece are in a separated state;

step two: in the process of hoisting and traveling the monorail, if the monorail crane is going to pass through a roadway section with severe deformation of a roadway side part, exposed ends of anchor rods or other supporting components block a trigger line and bend the trigger line, at the moment, the trigger line is in an elastic bending tensioning state, a reverse blade cuts the trigger line, and then a spring which is originally connected with the trigger line and is in an elastic stretching state is contracted into a normal loosening state;

step three: after a monorail crane driver or an operator hears an alarm and gives an alarm, a low-speed slow running mode is started for the monorail crane, then an emergency braking measure is taken, the monorail crane is stopped at an upstream section of an area with an excessively large deformation amount of a roadway side part, and a monorail crane carriage is prevented from being scratched by an anchor rod cable or other supporting components; after the monorail crane stops, special constructors use special tools to perform truncation operation and reinforcement supporting treatment on exposed ends of anchor rods and cables or other supporting members in the deformed roadway side parts, and after the treatment is finished, the monorail crane continues to move forward through the area until the operation is finished.

Further, in order to automatically carry out emergency braking through the monorail crane head braking system under the condition that a monorail crane driver or an operator cannot take emergency braking measures in time so as to take double guarantee measures to ensure safe, stable and reliable operation of the monorail crane, in the fourth step, after the set time after the induction controller sends out the alarm control signal, the running speed of the monorail crane still does not fall within the set range, the induction controller sends out an emergency braking signal to the monorail crane head braking system, and the monorail crane head braking system automatically controls the monorail crane to carry out emergency braking action after receiving the emergency braking signal, so that the monorail crane is stopped at the upstream section of the area with the overlarge deformation of the roadway side part, and the monorail crane carriage is prevented from being scratched by anchor ropes or other supporting components.

The method has simple steps, can automatically monitor whether the anchor rod cable or other supporting members in the deformed roadway side part can influence the safe operation of the monorail crane, can play a role in early warning and reminding in time, can ensure that an operator can take emergency treatment measures in time, and can automatically carry out emergency braking on the premise that the operator cannot take the treatment measures. The invention has ideal monitoring and reminding effects, strong application value and popularization value and can effectively ensure the stable and reliable operation of the monorail crane.

Drawings

FIG. 1 is a schematic view of an installation structure of a pre-detection early warning system in the invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a front view of FIG. 1;

fig. 4 is a schematic structural diagram of the advanced detection warning system of the present invention.

In the figure: 1. the monorail crane comprises a roadway, 2 parts of a monorail crane head, 3 parts of a fixed connecting rod A, 4 parts of a trigger line, 5 parts of an induction alarm, 6 parts of a fixed connecting rod B, 7 parts of I-steel, 8 parts of an anchor rod cable or other supporting components, 9 parts of a monorail crane carriage, 10 parts of a roadway side part, 11 parts of an auxiliary connecting rod, 5-1 part of a spring, 5-2 parts of a movable trigger piece, 5-3 parts of an induction line, 5-4 parts of a fixed connecting rod C, 5-5 parts of a fixed trigger piece, 5-6 parts of an induction controller, 5-7 parts of a data transmission lead, 5-8 parts of an alarm, 5-9 parts of a reverse blade, 5-10 parts of a lead, 5-11 parts of a through hole, 5-12 parts of an outer shell.

Detailed Description

The present invention is further described below.

As shown in fig. 1 to 4, the monitoring and early warning system for preventing the monorail crane from being scratched comprises two monitoring and early warning mechanisms, wherein the two monitoring and early warning mechanisms are arranged on the left side and the right side of a monorail crane head 2 in a bilateral symmetry manner;

the monitoring and early warning mechanism comprises two fixed connecting rods A3, two fixed connecting rods B6, two induction alarms 5 and two trigger lines 4;

the two fixed connecting rods A3 are respectively arranged on the left side and the right side of the lower end of the monorail crane head 2; the length direction of the fixed connecting rod A3 extends along the width direction of the monorail crane head 2, and the inner end of the fixed connecting rod A3 is fixedly connected with the outer end of the monorail crane head 2;

the two fixed connecting rods B6 are respectively arranged at the left part and the right part above the monorail crane head 2, the lower ends of the fixed connecting rods B6 are fixedly connected with the upper end of the monorail crane head 2, and the upper ends of the fixed connecting rods B6 are bent outwards and then extend to the outer side of the monorail crane head 2;

the two induction alarms 5 are respectively positioned at the outer sides of the upper ends of the two fixed connecting rods B6 and are respectively and correspondingly arranged above the outer ends of the two fixed connecting rods A3; the induction alarm 5 comprises an outer shell 5-12, a fixed trigger piece 5-5, a movable trigger piece 5-2, a spring 5-1, an induction controller 5-6, an alarm 5-8 and a reverse blade 5-9; the inner side plate of the outer shell 5-12 is fixedly connected with the upper end part of the fixed connecting rod B6, and the part of the bottom plate of the outer shell corresponding to the outer end of the fixed connecting rod A3 is provided with a through hole 5-11; the fixed triggering piece 5-5 and the movable triggering piece 5-2 are both made of conductive metal, magnets with different magnetic poles are embedded in the fixed triggering piece and are arranged at the upper part of the inner cavity of the outer shell 5-12, the fixed triggering piece 5-5 is transversely arranged, and the upper end of the fixed triggering piece is fixedly connected with the top plate of the outer shell 5-12 through a mutually fixed connecting rod C5-4; the movable trigger piece 5-2 is connected below the fixed trigger piece 5-5 through two induction wires 5-3 made of insulating materials and limited in the range of attracting with the fixed trigger piece 5-5 through the induction wires 5-3; the spring 5-1 is arranged in the inner cavity of the outer shell 5-12 and correspondingly arranged above the through hole 5-11, and the upper end of the spring is connected with the center of the lower end face of the movable trigger piece 5-2; the induction controller 5-6 is arranged in the inner cavity of the outer shell 5-12 and is arranged at the upper end of the fixed trigger piece 5-5, one detection end of the induction controller is electrically connected with the fixed trigger piece 5-5, and the other detection end of the induction controller is electrically connected with the movable trigger piece 5-2 through a lead 5-10; the alarm 5-8 is arranged outside the outer shell 5-12 and is connected with the output end of the induction controller 5-6 through a data transmission lead 5-7; the reverse blade 5-9 is arranged at the bottom of the inner cavity of the outer shell 5-12, is fixedly connected to the bottom plate of the outer shell 5-12, and the cutting edge of the reverse blade is arranged close to the through hole 5-11;

the two trigger lines 4 are respectively corresponding to the arrangement of the two induction alarms 5; the upper end of the trigger line 4 is connected with the lower end of the spring 5-1, the lower end of the trigger line penetrates out of the outer shell 5-12 through the through hole 5-11, and the trigger line is connected with the outer end of the fixed connecting rod A3 after being tensioned; the trigger line 4 is in a vertical state when in a tensioning state, the spring 5-1 is elastically stretched, and the movable trigger piece 5-2 is pulled away from the suction state with the fixed trigger piece 5-5 through the spring 5-1; the trigger line 4 is in clearance fit with the cutting edge of the counter blade 5-9 in a vertical state and is in butt fit with the cutting edge of the counter blade 5-9 when elastically bent and tensioned.

Preferably, the monorail crane further comprises two auxiliary connecting rods 11, the two auxiliary connecting rods 11 are correspondingly arranged above the two fixed connecting rods A3 and are respectively arranged on the left side and the right side of the upper end of the monorail crane head 2, the inner ends of the auxiliary connecting rods 11 and the outer end of the monorail crane head 2 are fixedly connected, the outer ends of the auxiliary connecting rods 11 and the outer end of the fixed connecting rod A3 are flat, and a round hole for the trigger line 4 to pass through is formed in each auxiliary connecting rod 11; by the co-operating arrangement of the auxiliary link 11 and the fixed link a3, the normal vertical position of the firing line 4 can be further ensured.

In order to facilitate installation and disassembly, the center of the lower end face of the movable trigger piece 5-2 is fixedly connected with a pull ring, and the upper end of the spring 5-1 is connected with the center of the lower end face of the movable trigger piece 5-2 through the pull ring.

In order to improve the reminding effect, the alarm 5-8 is an audible and visual alarm.

In order to ensure accurate monitoring, the trigger line 4 is flush with the outer boundary of the monorail car 9 in the pre-tightening state.

Preferably, the induction alarm 5 further comprises a power supply module, the power supply module is installed inside the outer shell 5-12, and supplies direct current power to the induction controllers 5-6 and the alarm 5-8 respectively.

In order to obtain the running speed of the monorail crane in real time and automatically send an emergency braking signal to the monorail crane head braking system in an emergency state, the induction controllers 5-6 are also connected with the monorail crane head 2 braking system and the monorail crane head 2 speed measuring system.

Set up two monitoring early warning mechanisms through the left and right sides at the monorail crane locomotive to adopt two to trigger the line monitoring tunnel group in stock cable or other strut member to the distance of monorail crane carriage, just can be automatic monitor the deformation condition of tunnel group portion in advance, and can carry out timely warning of whistling through the alarm when the not satisfied current condition of deflection, so that monorail crane driver or operator can in time take the security of effectual emergent braking measure guarantee operation. The system is simple in structure, low in manufacturing cost, convenient and quick to install on the original basis, and convenient to popularize and apply on a large scale. The method can accurately monitor the deformation condition of the coal rock mass on two sides of the roadway, and can effectively play a role in reducing disasters.

The invention also provides a monitoring and early warning method for preventing the single-rail hoisting damage caused by rubbing, which comprises a monitoring and early warning system for preventing the single-rail hoisting damage caused by rubbing, and is characterized by comprising the following steps:

the method comprises the following steps: before the monorail is hung in the roadway 1 to run, the lower end of the trigger wire 4 is tightened on the outer end of the fixed connecting rod A3 to tension the trigger wire 4 and enable the spring 5-1 to be in an elastic stretching state, so that the movable trigger piece 5-2 and the fixed trigger piece 5-5 are in a separated state;

step two: in the process of hoisting and traveling the monorail, if the monorail is going to pass through a roadway section with serious deformation of a roadway wall part 10, the exposed end of an anchor rod cable or other supporting members 8 blocks a trigger line 4 and bends the trigger line 4, at the moment, the trigger line 4 is in an elastic bending tensioning state, a reverse blade 5-9 cuts off the trigger line, so that a spring 5-1 which is originally connected with the trigger line 4 and is in an elastic stretching state is contracted into a normal loosening state, a movable trigger piece 5-2 is tightly attached to a fixed trigger piece 5-5 due to the magnetic attraction effect, the tightly attached movable trigger piece 5-2 and the fixed trigger piece 5-5 are communicated with two detection ends of an induction controller 5-6 under the connection effect of a lead 5-10, the induction controller 5-6 outputs an alarm control signal to a trigger alarm 5-8 through an output end of the induction controller after the two detection ends are in short circuit, controlling a trigger alarm 5-8 to whistle for early warning to remind a driver or an operator of the monorail crane to take emergency measures;

step three: after a monorail crane driver or an operator hears the alarm 5-8 to alarm, a low-speed slow running mode is started for the monorail crane, then an emergency braking measure is taken, the monorail crane is stopped at the upstream section of the area with the overlarge deformation of the roadway side part 10, and the monorail crane carriage 9 is prevented from being scratched by an anchor rod cable or other supporting members 8; after the monorail crane stops, special constructors perform truncation operation and reinforcement supporting treatment on the exposed ends of anchor cables or other supporting members 8 in the deformed roadway side part 10 by using special tools, and the monorail crane continues to move forward through the area until the operation is finished after the treatment is finished.

In order to automatically carry out emergency braking by a monorail crane head braking system under the condition that a monorail crane driver or an operator cannot take emergency braking measures in time so as to take double guarantee measures to ensure the safe, stable and reliable operation of a monorail crane, in the fourth step, after the set time after the induction controller 5-6 sends out the alarm control signal, when the running speed of the monorail crane still does not fall into the set range, the induction controller 5-6 sends an emergency braking signal to the monorail crane head 2 braking system, and the monorail crane head 2 braking system receives the emergency braking signal and then carries out emergency braking through interaction of a braking mechanism in the monorail crane and the I-steel 7, so that the monorail crane is stopped at the upstream section of the area with the excessive deformation of the roadway wall part 10, and the monorail crane carriage 9 is prevented from being scratched by anchor rods or other supporting members 8.

The method has simple steps, can automatically monitor whether the anchor rod cable or other supporting members in the deformed roadway side part can influence the safe operation of the monorail crane, can play a role in early warning and reminding in time, can ensure that an operator can take emergency treatment measures in time, and can automatically carry out emergency braking on the premise that the operator cannot take the treatment measures. The invention has ideal monitoring and reminding effects, strong application value and popularization value and can effectively ensure the stable and reliable operation of the monorail crane.