CN114261899A

CN114261899A - Coal mine underground single-rail crane ranging alarm device

Info

Publication number: CN114261899A
Application number: CN202210118413.4A
Authority: CN
Inventors: 陶琼; 吴雪茹; 王先成
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2022-02-08
Filing date: 2022-02-08
Publication date: 2022-04-01

Abstract

The invention relates to the technical field of underground safe transportation of coal mines and discloses a distance measurement alarm device for a coal mine monorail car; the device includes that the monorail hangs the cab, ultrasonic ranging device is equipped with to the outdoor both sides of cab, be provided with the control cabinet in the monorail hangs the cab, be provided with central controller in the control cabinet, be provided with emergency stop device on the control cabinet, emergency stop device normally closed contact pass through coil, optical coupler with central controller links to each other, still be provided with display and audible-visual annunciator on the control cabinet, display and audible-visual annunciator pass through the circuit with central controller links to each other. The monorail crane is improved, the distance between a cab and a mine wall is detected by installing the ultrasonic ranging device, an alarm is given and the vehicle body is braked when the distance exceeds a set value, so that the problem that transported materials are easily scraped and rubbed against the mine wall when the distance between the vehicle body and the mine wall is too close can be effectively solved, and the underground transportation safety is further improved.

Description

Coal mine underground single-rail crane ranging alarm device

Technical Field

The invention relates to the technical field of underground coal mine safety transportation, in particular to a distance measurement alarm device for an underground coal mine single-rail crane.

Background

The monorail crane is a system which uses a specially-made I-steel hung above a roadway as a track, and uses hanging vehicles with various functions to form a train set, and uses a traction device to draw the train set and make the train run along the track. The traction power of the underground monorail crane for the coal mine can be provided by a steel wire rope, a diesel engine, a storage battery or a pneumatic device. The monorail crane is common transportation equipment under a coal mine, and can convey personnel, materials and equipment to any required place. At present, when a monorail crane runs, due to the fact that the size of transported materials is too large or the placement position is not standard, the distance between the transported materials and a roadway wall is too small, the roadway wall is cut off or scratched to equipment tools placed on two sides of a roadway, the cut-off equipment tools are dragged, huge potential safety hazards are caused to the equipment tools and workers, and safety accidents are caused. Therefore, the monorail crane distance measurement alarm device is provided.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a distance measurement alarm device for a single-rail crane in a coal mine, which aims to solve the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a colliery is single rail in pit hangs range finding alarm device, includes ultrasonic ranging device, ultrasonic ranging device sets up in the outer both sides of automobile body front and back end driver's cabin, with central controller wireless connection, central controller sets up in the control cabinet, links to each other with the automobile body power through voltage converting circuit, central controller links to each other with audible-visual annunciator, audible-visual annunciator sets up on the main control cabinet, presents different operating condition according to the difference of detection distance, still be provided with LCD display and scram device on the control cabinet, LCD display with central controller links to each other and shows the distance and the alarm information that detect in fact, the scram device can by central controller control, the automobile body is braked when the distance is too near.

Further, the rear end of the front end of the vehicle body is provided with a cab, the number of the ultrasonic ranging devices is two, 4 of the ultrasonic ranging devices are arranged outside the two cabs, different numbers are given to each ranging device, and ranging information and alarm information are displayed in the two cabs simultaneously.

Furthermore, the ultrasonic ranging device is in 2.4GHz wireless connection with the master control device.

Furthermore, the audible and visual alarm has different states when the detection distance is less than 0.2m,0.2m-3m and is greater than 3 m.

Further, an emergency stop device is arranged on a console of the cab, is controlled by the central controller and is electrically isolated from the central controller.

(III) advantageous effects

Compared with the prior art, the invention provides a distance measurement alarm device for a single-rail crane in a coal mine, which has the following beneficial effects:

1. this monorail hoist range finding alarm device detects the distance in automobile body and tunnel through ultrasonic technology, with data wireless transmission to main control unit on, reduced the connection of circuit, the installation is simple, and circuit stability obtains improving.

2. This monorail hoist range finding alarm device, the setting in two driver's cabins is the same with the ultrasonic wave information of receiving completely, through display information, audible-visual annunciator and scram device, lets the driver from the vision, the sense of hearing reacts to the detection distance with 3 aspects of action, makes the warning more swift more intelligent. The normally closed contact of the emergency stop device is connected with the central controller, and when the emergency stop device receives an emergency stop signal, the circuit can be cut off instantly, so that the vehicle stops for the first time, and the occurrence of accidents is further reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the circuit structure of the present invention.

In the figure: 1. a monorail crane cab; 2. a monorail crane track; 3. an ultrasonic ranging device; 4. a console; 5. a central controller; 6. a display; 7. an audible and visual alarm; 8. a sudden stop device; 9. an ultrasonic module; 10. and a wireless communication module.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the invention provides a technical scheme of a distance measuring and alarming device for a coal mine underground monorail crane, which is characterized in that: the monorail crane comprises a monorail crane cab 1; 2. a monorail crane track; 3. an ultrasonic ranging device; 4. a console; 5. a central controller; 6. an LCD display; 7. an audible and visual alarm; 8. a sudden stop device; 9. an ultrasonic module; 10. and a wireless communication module. Ultrasonic ranging device 3 sets up 1 outer both sides in rear end cab of automobile body, with central controller 5 wireless connection in the control cabinet 4 avoids the line connection, has improved the reliability of device, central controller 5 pass through voltage conversion circuit with cab 1 power links to each other, provides reliable stable power for master control device, central controller 5 links to each other with audible-visual annunciator 7, audible-visual annunciator 7 sets up on control cabinet 4, presents different operating condition according to the detection distance audible-visual annunciator, has strengthened the efficiency of judging the distance. The control console 4 is also provided with an LCD display 6 and an emergency stop device 8, the LCD display 6 is connected with the central controller 5 and displays the detected distance and alarm information, the emergency stop device 8 is connected with the central controller 5, and when the distance is too small, the emergency stop device 8 receives an emergency stop signal of the central controller 5, so that emergency stop of the monorail crane can be realized, a driver can find abnormal conditions in time and process the abnormal conditions, and safe operation is realized.

The working principle of the device is as follows: when the monorail crane runs, 4 ultrasonic ranging modules detect the distance between a locomotive cab and a tail cab and a coal roadway, the ultrasonic ranging modules transmit measured signals to a central controller of the ranging modules, the central controller outputs information to a wireless communication module, the wireless communication module transmits the signals to a wireless communication module in a console, the central controller in the console receives the information and then outputs the information to a display, an audible and visual alarm and an emergency stop device, when the detection distance received by the central controller is larger than a set threshold value of 3m, the audible and visual alarms of the two cab cabs do not sound, the lamp is green, the distance is safe, and the monorail crane can continue running; when the distance is less than 3m and greater than 0.2m, the audible and visual alarm begins to sound, the signal lamp turns red and flashes, and a driver can judge the position with abnormal distance by observing the distance information and the number displayed on the display and stop the vehicle for processing. If the detection distance is less than the set threshold value of 0.2m, the detection distance is very close, the detection distance is very dangerous, a driver can not operate the emergency stop device in time under the condition and continues to operate, safety accidents such as scraping and rubbing of objects are likely to occur, in order to avoid the occurrence of the conditions, a central controller in a console of the device sends an emergency stop signal to the emergency stop device, a normally closed contact of the emergency stop device is disconnected, a vehicle is braked instantly, the emergency stop is quicker than the condition that the driver manually presses the emergency stop device, and the monorail crane is ensured to stop in time. Because the front cab and the rear cab are the same, the signals received by the two cabs are also the same, so that the two cabs can be monitored simultaneously, and the safe operation of the monorail crane is further improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a colliery is monorail crane range finding alarm device in pit which characterized in that: including single track hanging cab (1), install on single track hanging track (2) cab (1), ultrasonic ranging device (3) set up both sides outside single track hanging cab (1), be provided with control cabinet (4) in cab (1), be provided with central controller (5) in control cabinet (4), be provided with audible-visual annunciator (6), LCD display (7) on control cabinet (4), and with central controller (5) pass through line connection, and scram device (8) set up on control cabinet (4).

2. The coal mine underground single-track crane ranging alarm device according to claim 1, characterized in that: the monorail crane is provided with two driver cabs at the head and the tail of the vehicle, and all devices of the two driver cabs are completely the same.

3. The coal mine underground single-track crane ranging alarm device according to claim 1, characterized in that: and a central controller (5) in the console (4) is in 2.4G wireless communication with the ultrasonic ranging device (3) through a wireless communication module.

4. The coal mine underground single-track crane ranging alarm device according to claim 1, characterized in that: and a central controller (5) in the console (4) is connected with a power supply of the cab (1) through a voltage conversion circuit, and the ultrasonic ranging device (3) is powered by a battery.

5. The coal mine underground single-track crane ranging alarm device according to claim 1, characterized in that: and a central controller (5) in the console (4) controls a normally closed contact of the emergency stop device (8) to be turned off by controlling an optical coupler and a relay, so that the braking function is realized.

6. The coal mine underground single-track crane ranging alarm device according to claim 1, characterized in that: the acousto-optic alarm device (7) is green in light when in safe distance, flashes red and gives an alarm when in dangerous distance, and displays distance measurement and alarm information on the display (6).

7. The coal mine underground single-track crane ranging alarm device according to claim 1, characterized in that: both the ultrasonic ranging device and the console have a central controller and wireless communication modules, STC89C52 series and nRF24L01+, respectively.