Continuous automatic detection device for unloading limit of bottom side unloading type mine car

Abstract

The utility model belongs to the technical field of mining transportation, and particularly discloses a continuous automatic detection device for an unloading limit of a bottom side unloading type mine car. Supports are fixed to the outer sides of the two sides of a rail of the detection device respectively, optical range finders are fixed to the top ends of the supports, lenses of the optical range finders upwards point to the bottom faces of wing plates on the corresponding sides of the bottom side dumping mine car on the rail, and a data recording display screen is further arranged in a control room outside the rail. The data recording display screen is in signal connection with the optical range finders on the two sides of the track, and the data recording display screen and the optical range finders are electrically connected with the power source. The optical range finders are arranged on the two sides of the rail respectively to measure the height from the bottom face of the mine car wing plate to the rail top, meanwhile, the data recording display screen connected with the optical range finders is arranged in the control room, whether the numerical value of the mine car meets the limit or not can be displayed in real time, and therefore the potential safety hazard of impact generated when the mine car enters and exits an unloading station is avoided; the device has the characteristics of simple structure, high detection efficiency, safety and reliability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of mining transportation, and particularly relates to a bottom-side unloading type mine car unloading limit continuous automatic detection device which is simple in structure, high in detection efficiency and safe and reliable. BACKGROUND

[0002] The rail mine car is the main force for mine transportation, and its normal operation is always the focus of equipment management. The bottom-side unloading type mine car and the bottom unloading type mine car are the mainstream rail mine car structures at present because of large volume and high unloading efficiency, but the wings on both sides of the car are required to smoothly load and unload the supporting wheels of the unloading station. In order to ensure the smoothness of the rail mine car when entering and leaving the unloading station, it is very important to ensure that the design standard height of the top surface of the rail to the working surface of the supporting wheel of the unloading station is 900 mm. Through years of use experience summary, it is known that if the aforementioned height exceeds 900 mm (i.e. the unloading limit, that is, the height from the top surface of the rail to the bottom surface of the wings on the side of the mine car is less than 900 mm), and if it cannot be handled in time, the wings on the side of the rail mine car will impact the supporting wheels of the unloading station when entering and leaving the unloading station, which may affect the service life of the supporting wheel group of the unloading station, or even damage the foundation of the unloading station. Since the damage to the foundation of the unloading station is an accelerated process, once the foundation is damaged, it will adversely affect the safety, efficiency and service life of the mine transportation.

[0003] Through the structural analysis of the existing bottom-side unloading type mine car and the bottom unloading type mine car and the unloading station by the inventor, it is considered that the factors causing the unloading limit to exceed the standard are: the wheel set displacement caused by the wear of the V-shaped rubber spring of the rail mine car, the wear of the wheel tread of the rail mine car, and the wear and deformation of the supporting wheel group of the unloading station and the wear and deformation of the track. The last two factors belong to the part of the unloading station and the track, which can be easily measured and found out and rectified by visual inspection if there is a problem. However, the wheel set and the V-shaped rubber spring of the rail mine car are installed on the chassis, and careful inspection can only be carried out on each car in the maintenance chamber, which is an impossible task for the mine transportation system to check a large number of rail mine cars every day. Therefore, in the prior art, an intelligent technical solution using machine vision is adopted to detect the height between the bottom surface of the side wings of the running mine car and the top surface of the rail, so as to eliminate the impact and even collision caused by the unloading limit exceeding the standard. However, the machine vision solution has high cost and complicated training process, and has high requirements for light changes and the cleanliness of the side wings of the rail mine car, resulting in poor actual application effect and difficulty in meeting the high reliability requirements of mine transportation.

[0004] In view of the above problems, it is particularly important to design a bottom-side unloading type mine car unloading limit continuous automatic detection device which is simple in structure, high in detection efficiency and safe and reliable to replace the current manual detection and machine vision solution. CONTENT OF THE UTILITY MODEL

[0005] The bottom side discharge type mine car unloading limit continuous automatic detection device has the advantages of simple structure, high detection efficiency and safety and reliability.

[0006] The utility model discloses a track, the outside of track both sides is fixedly arranged with the vertical upwards extending support respectively, the top of support is fixedly arranged with optical range finder, the highest point of optical range finder is lower than the wing plate lowest point of bottom side discharge type mine car on the track, the lens of optical range finder points to the wing plate bottom surface of bottom side discharge type mine car corresponding side on the track upwards, still be provided with data record display screen in the control chamber of track outside, data record display screen is connected with the signal of optical range finder both sides of track respectively, and data record display screen and optical range finder are connected with power supply electrically.

[0007] Further, the support is in the shape of "[", and one end of the bottom is fixedly connected with the corresponding side of the track, or the support is in the shape of inverted "L", and the straight rod is fixedly arranged on the ground outside the track; at least two supports are arranged on the same side of the track, and a horizontal support rod is fixedly connected between the supports on the same side; and the top ends of the two outermost supports on the same side of the track are fixedly provided with optical range finders.

[0008] Further, a digital camera is fixedly arranged on the support rod on one side or both sides of the track, and a PLC controller is further arranged on the side of the data record display screen; and the optical range finders, the digital camera and the data record display screen are signal-connected with the PLC controller.

[0009] Further, the utility model further comprises an alarm arranged on the support or the side of the data record display screen, and the driving circuit of the alarm is signal-connected with the PLC controller.

[0010] Further, a signal lamp or a warning display screen is further fixedly arranged on one side of the track between the support and the unloading station, and the signal lamp or the warning display screen is signal-connected with the PLC controller, and is used for driving the signal lamp or the warning display screen to respond when the measurement value read by the PLC controller is less than the minimum threshold value.

[0011] Further, a jet nozzle is fixedly arranged on the support fixed with the optical range finder and / or the support rod fixed with the digital camera, the opening end of the jet nozzle points to the lens of the corresponding optical range finder or digital camera, the jet nozzle is communicated with the gas supply pipe of a high-pressure gas supply device through a pipeline, and a switch is arranged on the pipeline connected with the jet nozzle.

[0012] Further, the support is fixedly arranged outside the straight track in the transportation roadway, and the optical range finder is an infrared range finder or a laser range finder.

[0013] Further, the supporting rods on the two sides of the track or outside the supporting rods are respectively fixed with lighting systems, and the PLC controller is connected with the control switch signals of the lighting systems to control the start and stop of the lighting systems.

[0014] The utility model discloses the beneficial effects of:

[0015] 1, the utility model discloses the optical range finder of fixed support of setting up respectively on the two sides of track, through optical range finder respectively continuous measurement the height of the wing plate bottom surface to the track top (i.e. unloading limit) of passing through the mine car, simultaneously setting up the data record display screen of connecting with optical range finder in the control chamber to store and real -time display the unloading limit value of mine car, not only simple structure, and compared with artificial detection efficiency improves significantly, and can discover the over limit mine car in time and take the countermeasure, can effectively eliminate the safety hidden danger of the impact of mine car with the towing wheel when entering and exiting the unloading station.

[0016] 2, the utility model discloses the unloading limit of passing through the mine car is measured by optical range finder, not only low cost compared with the machine vision scheme, and also need not training, and can use after installation debugging, and the optical range finder is low to the cleanliness requirement of the light change and the wing plate of the rail mine car side, even under the condition of no illumination, can also work normally, especially suitable for the limit monitoring of mine transportation system.

[0017] 3, the utility model discloses further cooperate optical range finder and set up digital camera, and correspondingly set up the PLC controller of signal connection with optical range finder and digital camera, thereby can identify the number of the over limit mine car and alarm in time when the PLC controller monitors, realizes the full automation of over limit detection, not only need not manual operation and judge whether the mine car is over limit, and improve the reliability of detection, fundamentally eliminate the safety hidden danger of the over limit mine car unloading, ensure the safety of unloading process. Especially set up the air jet nozzle of intercommunication with high pressure gas supply device on the side of the lens of optical range finder or digital camera, can remove the dust and impurities of the lens of optical range finder or digital camera as needed or regularly, can improve the reliability of limit detection.

[0018] Summarized above, the utility model has the characteristics of simple structure, high detection efficiency and safe and reliable. ACCURACY

[0019] Figure 1 It is one of the detection process schematic diagram of the utility model;

[0020] Figure 2 It is Figure 1 the right view of the utility model;

[0021] Figure 3 It is the second detection process schematic diagram of the utility model;

[0022] Figure 4 It isFigure 3 right view of the figure;

[0023] In the figure: 1-track, 2-bracket, 3-optical range finder, 4-bottom side dump car, 5-wing plate, 6-data recording display screen, 7-brace, 8-digital camera, 9-PLC controller, 10-alarm, 11-illumination system, 12-jet nozzle, L-unloading limit. DETAILED DESCRIPTION

[0024] The utility model makes further explanation in connection with the drawings and examples, but does not limit the utility model in any way, and any change or improvement based on the utility model teaching belongs to the protection scope of the utility model.

[0025] As Figures 1 to 4 The utility model discloses a track 1, the outer side of track 1 both sides is fixed with the bracket 2 that extends vertically upwards respectively, the top of bracket 2 is fixed with optical range finder 3, the highest point of optical range finder 3 is lower than the lowest point of wing plate 5 of bottom side dump car 4 on track 1, the lens of optical range finder 3 points to the bottom surface of wing plate 5 on the corresponding side of bottom side dump car 4 on track 1, the control chamber of track 1 outer side is also provided with data recording display screen 6, data recording display screen 6 is connected with optical range finder 3 on the both sides of track 1 signal respectively, data recording display screen 6 and optical range finder 3 are connected with power supply electrically respectively.

[0026] Data recording display screen 6 is the digital display screen or liquid crystal display with storage function of prior art.

[0027] Bracket 2 is "[ " shape and the bottom one end is fixedly connected with the corresponding side track 1, or bracket 2 is inverted " L " shape and straight rod bottom is fixed on the ground outside track 1, and the same side of track 1 is provided with at least two brackets 2 and is fixedly connected with the horizontal brace 7 between each bracket 2 of the same side, and the top of the outermost two brackets 2 of the same side of track 1 is fixedly provided with optical range finder 3. The same side of track 1 is arranged with two optical range finders 3, can avoid the failure of one of optical range finders 3 to cause the automatic detection device of the utility model to stop working, also can avoid misjudgment through two mutual comparisons, improve the reliability of use.

[0028] The brace 7 on one side or both sides of the track 1 is fixedly provided with a digital camera 8, and the data recording display screen 6 side is further provided with a PLC controller 9, and the optical range finder 3, the digital camera 8 and the data recording display screen 6 are signal connected with the PLC controller 9 respectively.

[0029] This utility model also includes an alarm 10 disposed on the bracket 2 or on the side of the data recording display screen 6, wherein the driving circuit of the alarm 10 is connected to the PLC controller 9.

[0030] A signal light or warning display screen is also fixedly installed on one side of the track 1 between the bracket 2 and the unloading station. The signal light or warning display screen is connected to the PLC controller 9 and is used to drive the signal light or warning display screen to respond when the measured value read by the PLC controller 9 is less than the minimum threshold.

[0031] A nozzle 12 is fixedly installed on the bracket 2 on which the optical rangefinder 3 is fixed and / or on the support rod 7 on which the digital camera 8 is fixed. The opening end of the nozzle 12 points to the lens of the corresponding optical rangefinder 3 or digital camera 8. The nozzle 12 is connected to the air supply pipe of the high-pressure air supply device through a pipe. A switch is installed on the pipe connected to the nozzle 12.

[0032] The bracket 2 is fixedly installed on the outside of the straight track 1 in the transport tunnel, and the optical rangefinder 3 is an infrared rangefinder or a laser rangefinder.

[0033] The optical rangefinder 3 is a handheld optical rangefinder or an optical rangefinder sensor.

[0034] A lighting system 11 is fixedly installed on the support rods 7 on both sides of the track 1 or on the outside of the support rods 7. The PLC controller 9 is connected to the control switch signal of the lighting system 11 to control the start and stop of the lighting system 11.

[0035] The working principle and process of this utility model:

[0036] like Figures 1 to 4 As shown, when the bottom-discharge mine car 4 and the bottom-discharge mine car pass through the automatic detection device of this utility model (detection is carried out both when entering and exiting the unloading station), each laser rangefinder (i.e., optical rangefinder 3) on both sides of the track 1 continuously measures the height from the bottom surface of the wing plate 5 on both sides of the mine car to the top of the track (i.e., the unloading limit L), and then transmits the measured value to the PLC controller 9. When the PLC controller 9 receives readings from both optical rangefinders 3 on the same side of the track 1, it controls the digital camera 8 to take a side photo of the corresponding bottom-discharge mine car 4, and then compares the measured value of the optical rangefinder 3 with the threshold. When the measured value is less than the threshold, it reads the number of the bottom-discharge mine car 4 in the photo, and then transmits the number of the bottom-discharge mine car 4 and the measured value to the data recording display screen 6 in the control room for display. If necessary, the alarm 10 and the signal light or warning display screen on one side of the track 1 between the support 2 and the unloading station are activated to remind the operators or drivers in the control room to take corresponding measures. The operators in the control room record the number of the oversized mine car and the actual value; when the measured value is not less than the threshold, only the measured value is transmitted to the data recording display screen 6 for display.

[0037] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A kind of bottom side dump car unloading limit continuous automatic detection device, including track (1), it is characterized in that: The outer side of the track (1) is fixedly provided with a vertical upward extending support (2), the top end of the support (2) is fixedly provided with an optical range finder (3), the highest point of the optical range finder (3) is lower than the lowest point of the wing plate (5) of the bottom side dump car (4) on the track (1), the lens of the optical range finder (3) points upward to the bottom surface of the wing plate (5) on the corresponding side of the bottom side dump car (4) on the track (1), the control room outside the track (1) is further provided with a data recording display screen (6), the data recording display screen (6) is signal connected with the optical range finder (3) on both sides of the track (1), and the data recording display screen (6) and the optical range finder (3) are electrically connected with the power supply.

2. The device for continuously and automatically detecting the unloading limit of the bottom dump car according to claim 1, characterized in that: The support (2) is in the shape of "[", one end of the bottom is fixedly connected with the corresponding side of the track (1), or the support (2) is in the shape of inverted "L", and the straight rod bottom is fixed on the ground outside the track (1); at least two supports (2) are arranged on the same side of the track (1), and horizontal support rods (7) are fixedly connected between the supports (2) on the same side, and the top ends of the two outermost supports (2) on the same side of the track (1) are fixedly provided with optical range finders (3).

3. The device according to claim 2, characterized in that it comprises: The support rod (7) on one side or both sides of the track (1) is fixedly provided with a digital camera (8), and the data recording display screen (6) side is further provided with a PLC controller (9), and the optical range finder (3), the digital camera (8) and the data recording display screen (6) are signal connected with the PLC controller (9).

4. The device for continuously and automatically detecting the unloading limit of the bottom dump car according to claim 3, characterized in that: Further comprising an alarm (10) arranged on the support (2) or the side of the data recording display screen (6), and the driving circuit of the alarm (10) is signal connected with the PLC controller (9).

5. The device according to claim 3, characterized in that it comprises: The track (1) side between the support (2) and the unloading station is further fixedly provided with a signal lamp or a warning display screen, the signal lamp or the warning display screen is signal connected with the PLC controller (9), and is used for driving the signal lamp or the warning display screen to respond when the measured value read by the PLC controller (9) is less than the minimum threshold value.

6. The device according to claim 3, characterized in that it comprises: The support (2) fixed by the optical range finder (3) and / or the support rod (7) fixed by the digital camera (8) is fixedly provided with a jet nozzle (12), the opening end of the jet nozzle (12) points to the lens of the corresponding optical range finder (3) or digital camera (8), the jet nozzle (12) is communicated with the gas supply pipe of the high-pressure gas supply device through a pipeline, and a switch is arranged on the pipeline connected with the jet nozzle (12).

7. The device according to claim 3, characterized in that it comprises: The support (2) is fixedly arranged outside the straight track (1) in the transportation roadway, and the optical range finder (3) is an infrared range finder or a laser range finder.

8. The device according to any one of claims 3 to 7, characterized in that: The support rod (7) on both sides of the track (1) or outside the support rod (7) is further fixedly provided with an illumination system (11), and the PLC controller (9) is signal connected with the control switch of the illumination system (11) to control the start and stop of the illumination system (11).

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