Device for measuring depth of semitrailer carriage

Abstract

The utility model discloses a device for measuring the depth of a semi-trailer carriage, which comprises a vehicle material detection device, a server, a controller, a command display device, a wagon balance and a discharging device positioned right above the wagon balance, and is characterized in that the vehicle material detection device comprises a front measuring light curtain and a rear measuring light curtain which are mounted on two sides of a road surface at the front end and the rear end of the wagon balance in a mirror image manner; a vertical grating used for measuring the height of a vehicle is installed on the road surface between the rear measuring light curtain and the front measuring light curtain, the discharging device comprises a discharging conveying device used for reciprocating feeding, the right lower portion of the discharging conveying device is communicated with a telescopic pipeline fixed to the square frame, and the telescopic pipeline is connected with a discharging port. A front laser distance measuring sensor and a rear laser distance measuring sensor are correspondingly installed on the front portion and the rear portion of the square frame, a command display device used for commanding and displaying information is installed on the front side of the front measuring light curtain, and the discharging height in a compartment is detected through mutual cooperation of the interiors of the vehicle material detecting devices, so that the lifting height of a discharging opening is controlled; and the height of the discharging material level is controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of mine truck loading, in particular to a device for measuring the depth of a semi-trailer compartment. Background Art

[0002] With the development of mining and transportation technologies, the method of transporting ore by car is still relatively common; however, the loading and unloading system cannot adapt to the current efficient engineering environment because of its outdated equipment technology and poor automation, resulting in uneven loading and unloading and low efficiency.

[0003] Due to the limitations of conditions, costs and other factors, the transportation of mine ore often needs to be carried out by trucks, which generally have the following shortcomings:

[0004] 1. The exact value of the material dropping cannot be controlled by manual operation; while the use of conveyor belts will extend the material dropping time, affecting efficiency, and the material may slip and cause accidental injuries to personnel and vehicles.

[0005] 2. Due to the fixed position of the ore placing machine, the ore often forms an "ore pile" when it falls into the carriage. Halfway through the loading process, the ore needs to be leveled manually or mechanically. Moreover, this uneven distribution often requires the truck driver to move the vehicle forward and backward, affecting the loading efficiency.

[0006] 3. During the loading process, there is no weighing process and the quality of the material can only be judged by the naked eye. In order to ensure that the vehicle is not overloaded, the vehicle's performance cannot be fully utilized, the transportation efficiency is reduced, the fuel economy is reduced, and it is not conducive to environmental protection and energy saving. Utility Model Content

[0007] The utility model aims to provide a device for measuring the depth of a semitrailer compartment, which solves the above-mentioned problems in the prior art.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for measuring the depth of a semi-trailer compartment, comprising a vehicle material detection device, a server, a controller, a command display device, a weighing scale and a discharging device located directly above the weighing scale, the vehicle material detection device comprising a front measuring light curtain and a rear measuring light curtain mirror-mounted on both sides of the road surface at the front and rear ends of the weighing scale, a vertical grating for measuring the height of the vehicle is installed on the road surface between the rear measuring light curtain and the front measuring light curtain, the discharging device comprises a discharging conveying device for reciprocating feeding, one end of a telescopic pipe fixed to a square frame is connected directly below the discharging conveying device, the other end of the telescopic pipe is connected to a discharging port, a front laser ranging sensor and a rear laser ranging sensor are correspondingly installed at the front and rear of the square frame, and a command display device for commanding and displaying information is installed on the front side of the front measuring light curtain.

[0009] Preferably, the command display device includes a barrier bar, an electronic display screen, a signal light and a camera. The barrier bar falls when loading and rises when loading is completed. The signal light is a traffic indicator light, which is an LED headlight equipped with red and green colors. When the green light is on, it prompts the driver to drive forward and enter or leave under the funnel; when the red light is on, it prompts the driver to stop the car to load. The camera records the license plate on the vehicle and displays it on the electronic display screen.

[0010] Preferably, the rear measuring light curtain, the front measuring light curtain and the vertical grating are in the same vertical horizontal plane.

[0011] Preferably, the straight-line distance between the front laser ranging sensor and the rear laser ranging sensor and the telescopic pipe is 10CM-15CM, and both are located in the central position before and after the square frame, and are used to detect the position of the vehicle relative to the discharge port and the actual loading situation in the car.

[0012] Preferably, the controller is a programmable PLC, and the controller is electrically connected to the weighing scale.

[0013] Preferably, the server includes a gateway, a switch and a computer, the gateway is electrically connected to the rear measuring light curtain, the front measuring light curtain, the front laser ranging sensor, the rear laser ranging sensor and the vertical grating, and the switch and the computer are communicatively connected to the controller.

[0014] Preferably, a cylinder is installed next to the discharge port and the cylinder is fixedly connected to a discharge door. The discharge door is slidably installed on the discharge port and can slide to open / close the discharge port as the cylinder extends and retracts.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. Through the mutual cooperation within the vehicle material detection device, it is possible to detect in real time whether the vehicle is in place, and at the same time detect the height of the material discharge in the carriage, so as to control the lifting height of the discharge port to control the height of the material discharge level.

[0017] 2. Through the coordination between the discharge conveying device, telescopic pipe and discharge port of the discharge device, full automation of loading is realized, thereby improving work efficiency. At the same time, real-time data is displayed through the command display device, which is convenient for staff and drivers to observe.

[0018] 3. Weigh the vehicle in real time through the scale to prevent the vehicle from being overweight and reduce the probability of danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a device for measuring the depth of a semi-trailer compartment according to the utility model;

[0020] Figure 2 This is a schematic diagram of a command display device for measuring the depth of a semi-trailer compartment of the utility model;

[0021] Figure 3 This is a schematic diagram of a loading position detection device for measuring the depth of a semi-trailer compartment according to the utility model;

[0022] Figure 4 The utility model is a control connection schematic diagram of a device for measuring the depth of a semitrailer compartment.

[0023] Explanations in the figure: 101, rear measuring light curtain; 102, front measuring light curtain; 103, front laser ranging sensor; 104, rear laser ranging sensor; 105, vertical grating; 201, material discharge conveying device; 202, telescopic pipe; 203, material discharge port; 301, baffle; 302, electronic display screen; 303, signal light; 304, camera; 4, floor scale. DETAILED DESCRIPTION

[0024] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0025] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1 and Figure 2A device for measuring the depth of a semi-trailer compartment includes a vehicle material detection device, a server, a controller, a command display device, a weighbridge 4, and a material discharge device located directly above the weighbridge 4. The vehicle material detection device includes a front measuring light curtain 102 and a rear measuring light curtain 101 mirror-mounted on both sides of the road surface at both ends of the weighbridge 4. The rear measuring light curtain 101 and the front measuring light curtain 102 are respectively arranged near the front and rear ends of the weighbridge 4 and are arranged vertically on both sides of the front and rear sides along the direction of vehicle travel. The transmitting end and the receiving end of the light curtain 102 are respectively located on both sides of the vehicle body. A vertical grating 105 for measuring the height of the vehicle is installed on the road surface between the rear measuring light curtain 101 and the front measuring light curtain 102. The vertical grating 105 is vertically arranged and installed on a bracket with a certain height. The height of the bracket is less than the height of the vehicle. The height of the vertical grating 105 and the bracket is greater than the height of the side of the vehicle. The rear measuring light curtain 101, the front measuring light curtain 102 and the vertical grating 105 are in the same vertical horizontal plane. The device includes a material discharging and conveying device 201 for reciprocating feeding. One end of a telescopic pipe 202 fixed on a square frame is connected to the material discharging and conveying device 201 directly below, and the other end of the telescopic pipe 202 is connected to a material discharging port 203. A front laser distance measuring sensor 103 and a rear laser distance measuring sensor 104 are installed at the front and rear of the square frame respectively. A command display device for commanding and displaying information is installed on the front side of the front measuring light curtain 102. The vehicle and the material loading situation in the vehicle are detected by the vehicle material detection device, so that the controller can obtain the position of the vehicle relative to the hopper and the material loading situation in the vehicle, and control the material discharging device and the command display device to make corresponding actions accordingly, so as to achieve the purpose of automatically controlling the opening and closing of the material discharging door and guiding the driver to drive. A cylinder is installed next to the material discharging port 203 and the cylinder is fixedly connected to the material discharging door. The material discharging door is slidably installed on the material discharging port 203 and can slide to open / close the material discharging port 203 as the cylinder is extended and retracted, thereby realizing full automation of material discharging, thereby improving work efficiency, reducing costs, and improving benefits.

[0028] See also Figure 2 The command display device includes a lever 301, an electronic display screen 302, a signal light 303 and a camera 304. The lever 301 falls when loading and is lifted when loading is completed. The signal light 303 is a traffic indicator light, which is a red and green LED headlight. When the green light is on, it prompts the driver to drive forward to enter or leave the bottom of the funnel; when the red light is on, it prompts the driver to stop and load materials. One vehicle is blocked and one vehicle is loaded. The camera 304 records and collects the license plate on the vehicle and displays it on the electronic display screen 302. The electronic display screen 302 also displays the value changes of the scale 4 in real time, so that the driver can see the loaded weight in real time.

[0029] See also Figure 1The straight-line distance between the front laser distance sensor 103 and the rear laser distance sensor 104 and the telescopic pipe 202 is 10CM-15CM, and both are located in the central position of the front and rear of the square frame. They are used to detect the position of the vehicle relative to the discharge port 203 and the actual loading situation in the car, to prevent the telescopic pipe 202 from dropping too much during the loading process, resulting in the inability to load the car, and to prevent the telescopic pipe 202 from being squeezed with the edge of the car side. Furthermore, the height is detected in real time to prevent excessive loading during the loading process from causing material spillage.

[0030] See also Figure 4 The controller is a programmable PLC, which is electrically connected to the floor scale 4 so that program preset and system debugging can be completed through the computer terminal. The server includes a gateway, a switch and a computer. The gateway is electrically connected to the rear measuring light curtain 101, the front measuring light curtain 102, the front laser ranging sensor 103, the rear laser ranging sensor 104 and the vertical grating 105. The switch and the computer are connected to the controller through communication. The gateway and the computer terminal are connected to the programmable PLC controller through a switch. The switch can provide more network interfaces. The gateway, the computer terminal and the programmable PLC controller are all connected to the switch through communication. The gateway inputs the on-site detection data into the programmable PLC controller through the switch. The computer terminal accesses the programmable PLC controller through the industrial switch for system debugging.

[0031] The charging process of the utility model:

[0032] See also Figure 3 and Figure 4 ,

[0033] aFixed value of the laser sensor height from the ground

[0034] b laser ranging real-time height

[0035] c front laser ranging real-time height

[0036] d Fixed distance from laser sensor to discharge door

[0037] e Vertical grating shielding height

[0038] fFixed value of the grating mounting bracket

[0039] g Height of vehicle bottom from ground

[0040] 1. The height of the bottom of the vehicle from the ground is g = ab;

[0041] 2. According to the measured vehicle side height = e + f;

[0042] 3. Carriage depth = e + fg

[0043] S1: The green light of the signal light 303 lights up, the barrier bar 301 falls, the vehicle enters the loading area, and the front of the vehicle passes the rear measuring light curtain 101 and continues to move forward until the rear measuring light curtain 101 cannot detect the vehicle and the front measuring light curtain 102 just detects the front of the vehicle. At this time, the red light of the signal light 303 lights up, prompting the driver to stop the vehicle for loading;

[0044] S2: The camera 304 scans the license plate and displays it on the electronic display screen 302, the weighbridge 4 performs the first load-bearing and the data is displayed on the electronic display screen 302, and the data is stored and transmitted for the first time;

[0045] S3: the unloading conveying device 201 moves forward, and the front laser distance measuring sensor 103 and the rear laser distance measuring sensor 104 detect data changes in real time. When the front laser distance measuring sensor 103 and the rear laser distance measuring sensor 104 change, the unloading conveying device 201 stops moving;

[0046] S4: The telescopic pipe 202 extends to drive the discharge port 203 to fall. When the data detected by the front laser distance sensor 103 is less than d, the discharge conveying device 201 is adjusted backward in a jog manner until the front laser distance sensor 103 and the rear laser distance sensor 104 detect the same height, and the telescopic pipe 202 drives the discharge port 203 to continue to fall until the heights detected by the front laser distance sensor 103 and the rear laser distance sensor 104 are the same as d, and then the discharge conveying device 201 stops;

[0047] S5: the discharge port 203 starts to discharge the material, and the telescopic pipe 202 contracts at the same time. The front laser distance sensor 103 and the rear laser distance sensor 104 detect the height of the material in real time. When b and c are the same and b=aef, the telescopic pipe 202 moves backward and discharges the material. When b and c are the same again and b=aef, the telescopic pipe 202 continues to move backward and discharge the material. Repeat this step.

[0048] S6: The computer calculates the weight of the weighbridge 4 in real time minus the weight of the first load. When the calculated weight is the same as the weight to be loaded, the discharge port 203 is closed to stop the discharge, the signal light 303 turns green and the barrier rod 301 is lifted, and the discharge conveying device 201 is restored to its original position.

[0049] S7: The vehicle leaves. After 10 seconds when the current measuring light curtain 102 cannot detect the vehicle, the barrier rod 301 falls and a new vehicle appears and drives in to load.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the depth of a semitrailer compartment, characterized in that: The invention comprises a vehicle material detection device, a server, a controller, a command display device, a weighbridge (4), and a material discharge device located directly above the weighbridge (4). The vehicle material detection device comprises a front measuring light curtain (102) and a rear measuring light curtain (101) which are mirror-mounted on both sides of the road surface at the front and rear ends of the weighbridge (4). A vertical grating (105) for measuring the height of the vehicle is installed on the road surface between the rear measuring light curtain (101) and the front measuring light curtain (102). The material discharge device comprises a material discharge conveying device (201) for reciprocating material feeding. One end of a telescopic pipe (202) fixed on a square frame is connected directly below the material discharge conveying device (201). The other end of the telescopic pipe (202) is connected to a material discharge port (203). A front laser distance measuring sensor (103) and a rear laser distance measuring sensor (104) are correspondingly installed at the front and rear of the square frame. A command display device for commanding and displaying information is installed on the front side of the front measuring light curtain (102).

2. The device for measuring the depth of a semitrailer compartment according to claim 1, characterized in that: The command display device comprises a barrier bar (301), an electronic display screen (302), a signal light (303) and a camera (304). The barrier bar (301) is lowered when loading and raised when loading is completed. The signal light (303) is a traffic indicator light, which is an LED headlight with red and green colors. When the green light is on, it prompts the driver to drive forward to enter or leave the bottom of the funnel; when the red light is on, it prompts the driver to stop the car to load. The camera (304) records and collects the license plate on the vehicle and displays it on the electronic display screen (302).

3. The device for measuring the depth of a semitrailer compartment according to claim 1, characterized in that: The rear measuring light curtain (101), the front measuring light curtain (102) and the vertical grating (105) are located in the same vertical horizontal plane.

4. The device for measuring the depth of a semitrailer compartment according to claim 1, characterized in that: The front laser distance sensor (103) and the rear laser distance sensor (104) are 10CM-15CM away from the telescopic pipe (202) and are both located at the center of the front and rear of the square frame, and are used to detect the position of the vehicle relative to the discharge port (203) and the actual loading situation in the vehicle compartment.

5. The device for measuring the depth of a semitrailer compartment according to claim 1, characterized in that: The controller is a programmable PLC, and the controller is electrically connected to the floor scale (4).

6. The device for measuring the depth of a semitrailer compartment according to claim 1, characterized in that: The server comprises a gateway, a switch and a computer. The gateway is electrically connected to a rear measuring light curtain (101), a front measuring light curtain (102), a front laser ranging sensor (103), a rear laser ranging sensor (104) and a vertical grating (105). The switch and the computer are communicatively connected to a controller.

7. The device for measuring the depth of a semitrailer compartment according to claim 1, characterized in that: A cylinder is installed beside the discharge port (203) and the cylinder is fixedly connected to a discharge door. The discharge door is slidably installed on the discharge port (203) and can slide to open / close the discharge port (203) as the cylinder expands and contracts.

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