JP2020032965A - Self-propelled earth and sand loader and earth and sand loading method - Google Patents

Abstract

To provide a self-propelled earth and sand loader that can measure the volume of earth and sand to be loaded and that can move in accordance with work progress, and an earth and sand loading method.SOLUTION: A self-propelled earth and sand loader 1 comprises: a self-propellable gate frame 2; a hopper 4 that is supported via load cells 3 and 3 on the gate frame 2; and opening/closing means 6 for opening/closing a discharge opening 5 of the hopper 4. The weight of earth and sand 7 stored in the hopper 4 is measured, and the earth and sand 7 is put from the hopper 4 into a transportation vehicle traveling into a space under the gate frame 2. This prevents overloading, and dispenses with the operation of going through vehicle weighing equipment such as a truck scale installed in a predetermined location.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a self-propelled sediment loading apparatus and a method for loading sediment generated on a construction site or the like into a transport vehicle such as a dump truck.

  Conventionally, the work of loading earth and sand generated at construction sites, etc. is performed by moving a transport vehicle such as a dump truck to the work area, loading the soil on the carrier of the transport vehicle using a backhoe etc. at that site, and Using a loading device with a hopper supported on a portal frame, and loading the sediment temporarily stored in the hopper into the carrier of a transport vehicle moved under the portal frame. There is.

  On the other hand, in the earth and sand transporting work using a dump truck or the like, the weight of the load needs to be strictly controlled because accidents caused by overloading and road damage have become social problems.

  For this reason, in large dump trucks, etc., it is mandatory to install a weighing device that automatically weighs the load on the vehicle itself, but the weighing device installed in this type of vehicle has low accuracy and can not be used very much That was the current situation.

  Therefore, at construction sites that require earth and sand transportation, a vehicle weighing device such as a truck scale is installed at a predetermined location on the site, and when loading the construction site, the weight of vehicles such as dump trucks is measured for vehicles. In many cases, measurement is performed by a device and strictly controlled.

  In addition, a vehicle weighing device such as a truck scale is installed under a loading device having a hopper for storing earth and sand, and the lower end opening of the hopper is placed in a state where a transport vehicle such as a dump truck is placed on the vehicle weighing device. A method has been considered in which the loading operation is performed with the door open, and the loading amount is measured simultaneously with the loading (for example, see Patent Document 1).

JP 2006-177722 A JP-A-10-148565

  However, in the prior art as described above, when installing a vehicle weighing device such as a truck scale, it is necessary to secure a reaction force of a load cell for measuring a load and to provide a stable pit made of reinforced concrete. Installation locations are limited.

  Therefore, the transport vehicle has to go through a vehicle weighing device installed at a predetermined location, and on a site with a large site or a site where the occurrence of soil and soil is not constant, the traveling distance of the transport vehicle becomes longer, There was a problem that work efficiency was poor.

  In addition, conventional vehicle weighing devices such as truck scales measure the weight of transport vehicles loaded with earth and sand, so if overloading occurs, it must return to the loading area and unload the earth and sand. However, there is a problem that extra work time is required.

  In the conventional technique described in Patent Document 2, the loading amount can be measured while performing the loading operation, and the overloading can be prevented. However, the loading device and the vehicle weighing device are installed at predetermined positions. However, since it cannot be moved, there is a problem that it cannot be adapted to loading of sediment at a location where irregular soil is generated.

  Accordingly, the present invention has been made in view of such conventional problems, and has as its object to provide a self-propelled sediment loading apparatus and a sediment loading method which can measure the loaded earth and sand and can move as the construction progresses. It is a thing.

  The feature of the invention described in claim 1 for solving the conventional problem as described above is a self-propelled gate frame in which side frames are arranged to face each other, and supported on the gate frame via a load meter. Hopper, and an opening / closing means for opening and closing the discharge port of the hopper, weighing the weight of the earth and sand contained in the hopper, and feeding the earth and sand from the hopper to the transport vehicle that has entered under the gate frame. Self-propelled sediment loading equipment.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect, a vehicle discriminating means for discriminating a transport vehicle approaching the gate frame and specifying a loadable amount of the transport vehicle is provided.

  According to a third aspect of the present invention, in addition to the configuration of the second aspect, the vehicle discriminating means includes a camera for photographing a license plate of the transport vehicle, and a transport vehicle based on the captured image of the license plate. And a vehicle determination unit that specifies

  A feature of the invention described in claim 4 is that a self-propelled gate frame having side frames arranged opposite to each other, a hopper supported on the gate frame via a load meter, and a discharge port of the hopper is opened and closed. Using a self-propelled sediment loading device provided with an opening / closing means for moving the self-propelled sediment loading device to a sediment loading position, and then putting earth and sand into the hopper, and loading the inside of the hopper by the load meter. And loading a transport vehicle into the gate frame, opening a discharge port of the hopper, and loading the transport vehicle with the soil.

  According to a fifth aspect of the present invention, in addition to the configuration of the fourth aspect, the self-propelled sediment loading apparatus recognizes a feature of a transport vehicle approaching the gate frame and determines a loadable amount of the transport vehicle. A vehicle discriminating means for specifying the amount of earth and sand loaded into the hopper before the transport vehicle enters, and the amount of sediment loaded into the hopper based on the loadable amount specified by the vehicle discriminating means. Is to adjust.

  The self-propelled sediment loading device according to the present invention is provided with the configuration according to claim 1, by including the weighing mechanism in the loading device itself, before loading the sediment on a transport vehicle such as a dump truck, Since the weight of the earth and sand can be measured, overloading can be prevented. Further, the load amount can be measured on the spot, and there is no need to go through a vehicle weighing device such as a truck scale installed at a predetermined location.

  Further, in the present invention, by providing the configuration according to the second aspect, it is possible to cope with various transport vehicles having different actual loading amounts and to set an appropriate loading amount.

  Furthermore, according to the present invention, by providing the configuration according to claim 3, the vehicle can be accurately identified.

  In addition, the method for loading sand according to the present invention can move the loading device in accordance with the progress of the construction by providing the configuration according to claim 4, so that the method for loading the earth and sand at irregular soil generation locations can be performed. Can also respond.

  Further, in the present invention, by providing the configuration according to claim 5, the waiting time of the transporting vehicle involved in the loading operation can be reduced, and the loading amount of each vehicle can be adjusted efficiently.

It is a front view showing an example of a self-propelled earth and sand loading device concerning the present invention. It is a side view same as the above. It is a partial expanded sectional view which shows the load cell installation part same as the above. It is sectional drawing of a self-propelled earth and sand loading apparatus same as the above. It is sectional drawing which shows the state which opened the hopper same as the above. It is an outline top view showing the procedure of the earth and sand loading method concerning the present invention. It is a side view which shows the state of the recognition operation | work of the transport vehicle same as the above. It is a side view which shows the state at the time of the same earth and sand loading. It is a rear view same as the above.

  Next, an embodiment of the self-propelled earth and sand loading device 1 according to the present invention will be described based on the embodiment shown in FIGS. Note that reference numeral 1 in the figure denotes a self-propelled earth and sand loading device.

  The self-propelled sediment loading apparatus 1 includes a self-propelled portal gate frame 2, a hopper 4 supported on the gate frame 2 via load meters 3, 3, and a discharge port 5 of the hopper 4. An opening / closing means 6 for opening and closing, and a weight calculating means for calculating the weight of the earth and sand 7 in the hopper 4 based on the load measured by the load meters 3 and 3 are provided, and the earth and sand 7 temporarily stored in the hopper 4 is It can be loaded into the loading platform 8a of the transport vehicle 8 that has entered under the gate frame 2.

  Further, the self-propelled earth and sand loading device 1 is provided with vehicle discriminating means 9 for recognizing the characteristics of the transport vehicle 8 approaching the gate frame 2 and identifying the loadable amount of the transport vehicle 8, It is adapted to the vehicle 8.

  The gate frame 2 includes a pair of side frames 10, 10 facing each other at an interval in the width direction, and a connecting beam 11 connecting the side frames 10, 10. It has a gate-shaped frame shape into which a transport vehicle 8 such as a dump truck can enter.

  The side frames 10, 10 are provided with a self-propelled unit 12 that is self-propelled by a driving body 12 a such as a crawler belt or a wheel, a column 13 made of square steel or the like that stands on the self-propelled unit 12, and a space between the columns 13. It has cross beams 14 and 14 to be connected, and has a rectangular frame shape.

  Although not shown, the self-propelled unit 12 includes a driving source such as an electric motor or a prime mover, and drives the driving body 12a such as a crawler belt or wheels by the driving source.

  The self-propelled unit 12 can control the drive source and the steering by remote control such as wireless. The operating device of the self-propelled unit 12 is provided, for example, in a cockpit of a sediment feeding means 15 such as a backhoe for feeding the soil 7 into the self-propelled sediment loading device 1.

  As shown in the drawing, each support 13 has a load meter support 16 at its upper end for supporting the load cells 3 and 3, and the hopper 4 is supported on the load meter support 16 via the load meters 3 and 3. It is supposed to be.

  In this embodiment, a fixing shaft 17 penetrating the load meter support 16 is provided, and the support plate 18 of the hopper 4 is fixed on the load meter support 16 via the center hole type load meter 3. 17 is supported in a penetrating state. Incidentally, reference numeral 19 in the drawing denotes a stopper for retaining.

  The hopper 4 has a discharge port 5 that can be opened and closed at the lower end, and the discharge port 5 can be opened and closed by opening and closing means 6.

  The opening / closing means 6 includes, for example, an opening / closing winch 20 that can be remotely operated wirelessly or by a wire, and the movable plate 26 that closes the discharge port 5 by operating the opening / closing winch 20 to extend and wind the operation cable 21. It opens and closes.

  Like the self-propelled unit 12, the operating device of the opening / closing means 6 is provided at the cockpit of the earth and sand loading means 15 such as a backhoe for charging the earth and sand 7 into the self-propelled earth and sand loading device 1.

  The hopper 4 is formed in a truncated pyramid shape or the like having an open upper surface and a small cross-sectional area on the lower end side, and a supporting plate 18 is integrally provided on an outer peripheral surface thereof. 3 and the support 13.

  The weight calculation means adds the measured values of the load cells 3 and 3 to calculate the weight of the hopper 4 including the earth and sand 7 and outputs the calculated weight to the display means 24 such as a monitor. Further, the weight calculating means can calculate the weight of the earth and sand 7 by subtracting the weight of the hopper 4 in advance.

  The vehicle discriminating means 9 is installed on the gate frame 2 and discriminates the transport vehicle 8 based on the camera 22 that captures an identification target 25 such as a license plate of the transport vehicle 8 and the image of the identification target 25 captured by the camera 22. A vehicle discrimination unit 23 is provided, and information on the specified transport vehicle 8 is displayed on the display unit 24.

  The vehicle determination unit 23 compares the image data of the identification target 25 such as the license plate of the transporting vehicle 8 captured by the camera 22 with the image data of the identification target 25 registered in a database on the cloud in advance using artificial intelligence (AI). ) And the like, and data such as the vehicle type, the vehicle size, the loadable amount, etc. of the transporting vehicle 8 whose image data of the identification target 25 matches are output to the display means 24.

  The display means 24 is installed in a cockpit or the like of an input means such as a backhoe for inputting the earth and sand 7 into the self-propelled earth and sand loading device. The display means 24 displays vehicle information, a loadable weight of the vehicle, a weight of the earth and sand 7 in the hopper 4, and the like. Is displayed.

  Next, a method for loading earth and sand using the self-propelled earth and sand loading apparatus 1 will be described.

  First, the earth and sand input means 15 such as a backhoe is arranged at a predetermined position with respect to the mountain of earth and sand 7 (hereinafter referred to as earth and sand mountain 30) collected by a bulldozer or the like. In the present embodiment, as shown in FIG. 4, the upper part of the earth and sand hill 30 is leveled, and the backhoe is arranged on the earth and sand hill 30.

  Next, the self-propelled sediment loading device 1 is moved to the vicinity of the sediment charging means 15 such as a backhoe, and the estimated loading amount of the sediment 7 is charged into the hopper 4.

  When the hopper 4 is put into the earth and sand 7, the load due to the weight of the earth and sand 7 and the hopper 4 acts on each of the load meters 3 and 3 via the hopper 4, and the weight calculating means calculates the measured values of each of the load meters 3 and 3. The weight of the hopper 4 including the earth and sand 7 is calculated and output to the display means 24 such as a monitor at any time in real time.

  Note that the approximate load capacity refers to an amount of earth and sand that does not exceed the minimum load capacity of all registered transport vehicles 8. The actual loading capacity is slightly different depending on the type of vehicle and other conditions, even if the transport capacity of the transport vehicle 8 is the same as the standard. By storing this in the hopper 4 in advance, the waiting time of the transport vehicle 8 associated with the loading operation can be reduced, and the loading amount of each vehicle can be adjusted efficiently.

  Next, as shown in FIG. 7, the transporting vehicle 8 is moved to a position in front of the self-propelled earth and sand loading device 1, an image of an identification target 25 such as a license plate is captured by the camera 22, and an image of the identification target 25 such as a license plate is captured. The data is collated with the image data of the identification target 25 registered in the database on the cloud in advance, and the data such as the vehicle type, the vehicle size, the loadable amount, and the like of the transporting vehicle 8 that matches the image data of the identification target 25 are backhoeed. Output to the display means 24 mounted on the like.

  Next, as shown in FIGS. 8 and 9, the transport vehicle 8 is moved below the hopper 4 of the gate frame 2, and the hopper 4 is moved based on the difference between the recognized loading amount of the transport vehicle 8 and the estimated integrated amount. Adjust the amount of earth and sand inside.

  For example, if the estimated loading capacity is 9.6 t, the hopper 4 has already stored the earth and sand 7 in an amount not exceeding 9.6 t, and the recognized loading capacity of the transport vehicle 8 is 9 t. .8t, there is a margin of 0.2t of the difference.

  Therefore, the operator of the earth and sand loading means 15 such as a backhoe can carry the new earth and sand 7 by 0.2 tons while checking the actual weight of the earth and sand 7 in the hopper 4 displayed on the display means 24 as needed. It is possible to adjust the loading amount to be optimal for the vehicle 8.

  Next, when the adjustment of the amount of the injected soil 7 is completed, the opening / closing means 6 is operated to open the discharge port 5, and the soil 7 is loaded on the transport vehicle 8 from the hopper 4.

  At this time, since the weight of the earth and sand 7 is adjusted according to the loading amount of the transport vehicle 8, the entire amount of the earth and sand 7 in the hopper 4 is supplied, so that the optimal amount of the earth and sand 7 is prevented from being overloaded. To be loaded.

  When all of the soil 7 in the hopper 4 is discharged, the discharge port 5 is closed by the opening / closing means 6, and the soil 7 loaded on the carrier 8 a of the transport vehicle 8 is leveled.

  After the loading is completed, the transport vehicle 8 is withdrawn from the gate frame 2, and the transport vehicle 8 shifts to a transport operation.

  Then, the portion 30a of the earth and sand pile 30 where the ground is exposed by the loading is shaped so as not to hinder the movement of the transport vehicle 8 such as a dump truck or the self-propelled earth and sand loading device 1, and is prepared for the operation of the next step.

  Next, as shown in FIG. 6B, the self-propelled sediment loading device 1 is moved to a position adjacent to the earth and sand pit 30 by remote control, and the earth and sand input means 15 such as a backhoe is moved adjacent to the earth and sand hill 30. To the position, and the loading operation of the earth and sand 7 is performed in the same manner.

  Then, a series of sediment loading operations are repeated until the sediment 7 in the entire sediment mountain 30 is exhausted while moving the sediment charging means 15 such as a backhoe and the self-propelled sediment loading device.

  The self-propelled sediment loading apparatus 1 and the method for loading the earth and sand using the same are provided with the weighing mechanism in the loading apparatus itself. 7 weights can be weighed, so the loading capacity can be measured on the spot, and there is no need to go through a vehicle weighing device such as a truck scale installed at a predetermined location, and the proper amount can be loaded. No rework due to overloading.

  In addition, since the loading device can move on its own, it can be moved in accordance with the progress of the construction, and can also cope with the work of loading the earth and sand 7 at places where the earth and sand 7 are not constant.

  Furthermore, in the self-propelled earth and sand loading device 1 and the earth and sand loading method, the provision of the vehicle discriminating means 9 enables loading of the earth and sand 7 with an appropriate loading amount into the transport vehicles 8 with different loading amounts.

  In the above-described embodiment, the vehicle discriminating unit 9 is described in which the license plate of the transport vehicle 8 is imaged by the camera 22 and discrimination is performed based on the image data. There is no limitation, for example, one using an identification code such as a barcode, one using an RFID (radio frequency identifier) technology for exchanging information from an RF tag by short-range wireless communication using electromagnetic waves or electric waves, and the like. Is also good.

DESCRIPTION OF SYMBOLS 1 Self-propelled sediment loading apparatus 2 Gate frame 3 Load cell 4 Hopper 5 Discharge port 6 Opening / closing means 7 Sediment 8 Transport vehicle 9 Vehicle discriminating means 10 Side frame 11 Connecting beam part 12 Self-propelled unit 13 Support part 14 Cross beam part 15 Loading means 16 Load cell support part 17 Fixing shaft 18 Support plate 19 Stopper 20 Opening and closing winch 21 Operating cable 22 Camera 23 Vehicle discriminating part 24 Display means 25 Identification object 26 Opening and closing door 30 Mud pile

Claims (5)

  A self-propelled gate frame having a side frame opposed thereto, a hopper supported on the gate frame via a load meter, and opening / closing means for opening / closing a discharge port of the hopper; A self-propelled sediment loading apparatus, wherein the weight of the stored earth and sand is measured, and the earth and sand is charged from the hopper to a transport vehicle that has entered under the gate frame.   The self-propelled sediment loading apparatus according to claim 1, further comprising a vehicle determination unit configured to determine a transport vehicle approaching the gate frame and specify a loadable amount of the transport vehicle.   3. The self-propelled vehicle according to claim 2, wherein the vehicle determination unit includes a camera that captures a license plate of the transport vehicle, and a vehicle determination unit that identifies the transport vehicle based on the captured image of the license plate. 4. Type earth and sand loading device. A self-propelled earth and sand comprising a self-propellable gate frame having a side frame opposed thereto, a hopper supported on the gate frame via a load meter, and opening / closing means for opening and closing a discharge port of the hopper. Using a loading device,
After moving the self-propelled sediment loading device to the sediment loading position, the sediment is thrown into the hopper, the weight of the sediment in the hopper is measured by the load meter, and the transport vehicle enters the gate frame. And loading the earth and sand in the transport vehicle by opening the discharge port of the hopper. The self-propelled earth and sand loading device includes a vehicle determination unit that recognizes a characteristic of a transport vehicle approaching the gate frame and specifies a loadable amount of the transport vehicle,
5. The method according to claim 4, wherein an approximate loading amount of earth and sand is input to the hopper before the transport vehicle enters, and the amount of earth and sand input to the hopper is adjusted based on the loadable amount specified by the vehicle determination unit. Loading method of earth and sand.

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