CN221006536U - Mine car weighing device - Google Patents

Abstract

A mining mine car weighing device belongs to the technical field of mining intelligent detection equipment. The device comprises a concrete foundation, a bottom plate, a track, a weighing sensor, a first card reader and a second card reader, wherein the track is provided with multiple sections and is erected on the bottom plate at intervals along the advancing line of the mine car in a head-to-tail manner, and any section of track in the multiple sections of track is set as a weighing track; the weighing sensors are arranged at intervals along the length direction of the weighing track; the first card reader is arranged on one side of the front end of the weighing track, the second card reader is arranged on one side of the rear end of the weighing track, and an information tag containing vehicle information is arranged on one side of the mine car, which faces the first card reader and the second card reader. The advantages are that: the device has the advantages of simple and reasonable structure, capability of detecting the load of the traveling mine car, no influence on the transportation efficiency, good stability and high accuracy during weighing; the automatic degree is high, the labor intensity of operators can be relieved, and overload conditions can be found in time.

Description

Mine car weighing device

Technical Field

The utility model belongs to the technical field of mining intelligent detection equipment, and particularly relates to a mining mine car weighing device.

Background

With the continuous development of social economy, the demand of mineral resources in various fields is increasing. Mine cars are standard or narrow gauge railway haulage vehicles that transport bulk materials such as ore, waste rock, coal, and the like in mines. The auxiliary shaft of the coal mine is mainly responsible for lifting and lowering transportation vehicles, operators and equipment, and if the mine car is not weighed in advance but is lowered by blind eyes, heavy load lowering or overload lifting can be caused, so that safety accidents are caused. In order to ensure safe operation of the auxiliary shaft, according to the safe lifting requirement of the coal mine cage, the vehicle must be lowered into the well to meet the load requirement allowed by the cage, however, in the existing coal mine site, the working environment is severe, the management is not standard, and the problem of overload of the mine car frequently occurs, so that parts of the mine car are easily worn, the failure rate is increased, the danger coefficient in the transportation process is increased, the load capacity of the mine car is influenced, and the transportation efficiency is reduced.

The method for quickly and accurately measuring the loading of the well entering vehicle is particularly important for the current mine transportation industry, but no widely accepted simple method exists at present, and if the loading of the mine car can be detected in real time in the running process of the mine car, the method has important significance for the operation safety of a cage and the scheduling management of mine transportation.

Disclosure of utility model

The utility model aims to provide a mining mine car weighing device which can detect the load of a traveling mine car, has high automation degree and is accurate in weighing.

The utility model aims to achieve the aim, and the mining mine car weighing device comprises a concrete foundation and a bottom plate paved on the concrete foundation, and is characterized in that: the device also comprises a track, a weighing sensor, a first card reader and a second card reader, wherein the track is provided with a plurality of sections and is erected on the bottom plate at intervals along the advancing line of the mine car in a head-to-tail manner, and any section of track in the plurality of sections of track is set as a weighing track; the weighing sensors are arranged at intervals along the length direction of the weighing track; the first card reader is arranged on one side of the front end of the weighing track, the second card reader is arranged on one side of the rear end of the weighing track, an information tag containing vehicle information is arranged on one side of the first card reader and one side of the second card reader, when the first card reader scans the information tag, the first card reader indicates that the vehicle enters the weighing track, the first card reader reads the vehicle information, each weighing sensor starts weighing the vehicle, when the second card reader scans the information tag, the second card reader indicates that the vehicle leaves the weighing track, and each weighing sensor finishes weighing and transmits data.

In a specific embodiment of the utility model, the concrete foundation is embedded with pressure-bearing brackets, the pressure-bearing brackets are provided with cross beams at intervals along the travelling line of the mine car, and the bottom plate is paved on the cross beams.

In another specific embodiment of the present utility model, the weighing sensors have six weighing sensors, and the weighing sensors are arranged at the head end and the tail end of the weighing rail and at the middle of the weighing rail in pairs.

In another specific embodiment of the present utility model, the weighing sensor has a mounting plate at the bottom and a supporting seat at the top, the mounting plate is fixed on the bottom plate, the weighing rail is bent to two sides at a position corresponding to the weighing sensor to form a fixing lug, the weighing sensor is located below the fixing lug, and the supporting seat is fixedly mounted with the fixing lug.

In still another specific embodiment of the utility model, the vehicle weighing system further comprises a weighing processor and a PLC controller, wherein the weighing processor receives data acquired by the weighing sensor, the data are transmitted to the PLC controller through a TCP network after being processed, the PLC controller is further connected with an upper computer and a cage, the PLC controller is respectively connected with a first card reader and a second card reader, when the first card reader scans an information tag, the PLC controller acquires vehicle information through the first card reader, when the second card reader scans the information tag, the PLC controller acquires weighing data from the weighing processor and transmits the weighing data to the upper computer for display, and when the PLC controller judges that the vehicle is overloaded according to a preset threshold value, the PLC controller controls the cage to be closed.

In yet another specific embodiment of the utility model, the track spacing between adjacent tracks is 2-5mm.

Due to the adoption of the structure, compared with the prior art, the utility model has the beneficial effects that: the device has the advantages of simple and reasonable structure, capability of detecting the load of the traveling mine car, no influence on the transportation efficiency, good stability and high accuracy during weighing; the automatic degree is high, the labor intensity of operators can be relieved, and overload conditions can be found in time.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a top view of the present utility model;

Fig. 3 is a circuit block diagram of the present utility model.

In the figure: 1. concrete foundation, 11, pressure-bearing bracket, 12, crossbeam; 2. a bottom plate; 3. track, 31, weighing track, 311, fixed lugs, 32, track interval; 4. weighing sensors 41, mounting plates 42 and supporting seats; 5. a first card reader; 6. a second card reader; 7. a weighing processor; and 8. A PLC controller.

Detailed Description

The following detailed description of specific embodiments of the utility model, while given in connection with the accompanying drawings, is not intended to limit the scope of the utility model, and any changes that may be made in the form of the inventive concepts described herein, without departing from the spirit and scope of the utility model.

In the following description, all concepts related to the directions (or azimuths) of up, down, left, right, front and rear are directed to the position states where the drawings are being described, so as to facilitate public understanding, and thus should not be construed as being particularly limiting to the technical solutions provided by the present utility model.

Referring to fig. 1 and 2, the utility model relates to a mining mine car weighing device, which comprises a concrete foundation 1 and a bottom plate 2 paved on the concrete foundation 1. The concrete foundation 1 is internally paved with reinforcing steel bars, and concrete construction is determined according to local actual conditions. The concrete foundation 1 must be ensured to withstand a pressure of 10t and a horizontal force of 5t. The concrete foundation must be dug to solid soil, the solid soil should be tamped, then construction and maintenance are carried out, and the installation and debugging of the weighing device cannot be carried out before the strength is reached. The concrete foundation 1 is internally embedded with pressure-bearing brackets 11 with steel structures, cross beams 12 are arranged on the pressure-bearing brackets 11 at intervals along the advancing line of the mine car, and the bottom plate 2 is paved on the cross beams 12 and is basically flush with the concrete foundation 1.

The utility model further comprises a track 3, a load cell 4, a first card reader 5 and a second card reader 6. The track 3 has multiple sections and is erected on the bottom plate 2 at intervals from head to tail along the travelling line of the mine car, and the track interval 32 between the sections of track 3 is 2-5mm. Any one section of track 3 in the multi-section track 3 is set as a weighing track 31, a plurality of weighing sensors 4 are arranged at intervals along the length direction of the weighing track 31, in the embodiment, the width of the track 3 is 60mm, the length of the weighing track 31 is 2 m 3, and the number of the weighing sensors 4 is six, and the weighing sensors 4 are arranged at the head end and the tail end of the weighing track 31 and in the middle in pairs.

The load cell 4 has a mounting plate 41 at the bottom and a support seat 42 at the top. The weighing sensor 4 is fixed on the bottom plate 2 through the mounting plate 41, the weighing rail 31 is bent towards two sides at the position corresponding to the weighing sensor 4 to form fixing lugs 311, the weighing sensor 4 is located below the fixing lugs 311, and the supporting seat 42 is fixedly mounted with the fixing lugs 311 through a bolt and nut structure. In this embodiment, the weighing cell 4 employs GZD40. The first card reader 5 is arranged on one side of the front end of the weighing track 31, and the second card reader 6 is arranged on one side of the rear end of the weighing track 31. The mine car is provided with an information tag containing vehicle information on one side facing the first card reader 5 and the second card reader 6, and the first card reader 5 and the second card reader 6 are used for scanning the information tag, and in this embodiment, the first card reader 5 and the second card reader 6 adopt KJF169.

Referring to fig. 3, the utility model further includes a weighing processor 7 and a PLC controller 8, wherein the weighing processor 7 is connected with the weighing sensor 4 and the PLC controller 8, the weighing sensor 4 detects weight during the running process of the vehicle, and the weight signal is sent to the PLC controller 8 by the weighing processor 7 through a TCP network after being calculated by the weighing processor 7. The PLC controller 8 is also connected with an upper computer and a cage, and the PLC controller 8 is respectively connected with the first card reader 5 and the second card reader 6. When the first reader 5 scans the information tag, it indicates that a mine car is driven into the weighing track 31, the first reader 5 acquires the vehicle information, identifies the car number, and each weighing sensor 4 starts weighing the car. When the second reader 6 scans the information tag, it indicates that the car is driving off the weighing track 31, and each load cell 4 ends weighing and transmits data. If the vehicle has the overrun phenomenon, the PLC 8 displays overrun information on a screen of the upper computer, and captures and acquires vehicle picture information through the camera, so that a loading operator can correct the vehicle in time, and meanwhile, the cage is closed. If the system measurement is normal, the mine car information and the weight information are stored in a database of the PLC 8 for the calling of an up-and-down information system when the vehicle goes down the well. The PLC controller 8 in this embodiment is a siemens s7-1200 series programmable controller, and its application in this embodiment is a conventional design of its function, and a detailed description is omitted here. The weighing processor 7 is not limited to a specific model, and can convert sensor data and transmit the sensor data to the PLC.

Claims (6)

1. The utility model provides a mining mine car weighing device, includes concrete foundation (1) and lays bottom plate (2) on concrete foundation (1), its characterized in that: the device also comprises a track (3), a weighing sensor (4), a first card reader (5) and a second card reader (6), wherein the track (3) is provided with a plurality of sections and is erected on the bottom plate (2) at intervals along the advancing line of the mine car in a head-tail manner, and any section of track (3) in the plurality of sections of track (3) is set as a weighing track (31); the weighing sensors (4) are arranged at intervals along the length direction of the weighing track (31); the first card reader (5) set up in the one side of weighing track (31) front end, second card reader (6) set up in the one side of weighing track (31) rear end, the mine car on be provided with the information tag that contains vehicle information in one side towards first card reader (5) and second card reader (6), when first card reader (5) scan this information tag, it drives into weighing track (31) to indicate that there is the mine car, first card reader (5) read vehicle information, each weighing sensor (4) begin weighing this car, when this information tag is scanned to second card reader (6), indicate that the mine car is driven away from weighing track (31), each weighing sensor (4) end weighing and transmission data.

2. A mining car weighing apparatus according to claim 1, wherein: the concrete foundation (1) is internally embedded with pressure-bearing brackets (11), cross beams (12) are distributed on the pressure-bearing brackets (11) at intervals along the advancing line of the mine car, and the bottom plate (2) is paved on the cross beams (12).

3. A mining car weighing apparatus according to claim 1, wherein: the weighing sensors (4) are six, and are arranged at the head end and the tail end of the weighing track (31) and in the middle in pairs.

4. A mining car weighing apparatus according to claim 1, wherein: the weighing sensor (4) is provided with a mounting plate (41) at the bottom and a supporting seat (42) at the top, the mounting plate (41) is fixed on the bottom plate (2), the weighing rail (31) is bent towards two sides at the position corresponding to the weighing sensor (4) to form a fixed lug (311), the weighing sensor (4) is positioned below the fixed lug (311), and the supporting seat (42) is fixedly installed with the fixed lug (311).

5. A mining car weighing apparatus according to claim 1, wherein: the automatic weighing device is characterized by further comprising a weighing processor (7) and a PLC (programmable logic controller) (8), wherein the weighing processor (7) receives data acquired by the weighing sensor (4), the data are transmitted to the PLC (8) through a TCP (transmission control protocol) network after being processed, the PLC (8) is further connected with an upper computer and a cage, the PLC (8) is respectively connected with a first card reader (5) and a second card reader (6), when the first card reader (5) scans an information label, the PLC (8) acquires vehicle information through the first card reader (5), when the second card reader (6) scans the information label, the PLC (8) acquires weighing data from the weighing processor (7) and transmits the weighing data to the upper computer for display, and when the PLC (8) judges that a vehicle is overloaded according to a preset threshold value, the cage is controlled to be closed.

6. A mining car weighing apparatus according to claim 1, wherein: the track interval (32) between two adjacent sections of tracks (3) is 2-5mm.