CN220819185U - A weighing plate used in a weighing system of a mobile large-piece transport vehicle - Google Patents

Abstract

A weighing plate used in a weighing system for a mobile large-piece transport vehicle comprises: a frame bottom plate and a weighing module; the middle of the frame bottom plate has a recessed portion that matches the shape of the weighing module, and the weighing module is arranged in the recessed portion in the middle of the frame bottom plate; the frame bottom plate is also provided with a calibration mounting hole for installing a gantry-type reaction force device of a load measuring instrument. The weighing plate of the utility model is applied to a weighing system for a mobile large-piece transport vehicle, and can be temporarily installed on a solid and flat highway or a spacious road surface to automatically weigh vehicles passing through the system area, and has the advantages of portability, movable deployment, and high weighing accuracy.

Description

A weighing plate used in a weighing system of a mobile large-piece transport vehicle

Technical Field

The utility model belongs to the technical field of metering and weighing equipment, in particular to a weighing plate used in a weighing system of a mobile large-piece transport vehicle.

Background technique

Large transport vehicles refer to oversized transport vehicles that carry non-disassembled items, and vehicles that transport and distribute goods with large total mass and volume on the road. The "Regulations on the Management of Oversized Transport Vehicles on Highways" issued by the Highway Bureau of the Ministry of Transport requires that key information such as "total mass of vehicle and cargo" and "axle load of each axle" should be accurately weighed and confirmed during the application and on-site inspection.

The transportation process of large-scale transport vehicles is very complicated and requires special transportation tools and escort solutions. These large-scale goods are characterized by "high value, overweight, overlength, overwidth, overheight, and indivisibility". They are generally urgently needed equipment for key projects. If they are delayed due to weight verification, it will seriously affect the construction progress of key projects, increase the operating costs of enterprises and drivers, and highlight social contradictions.

At present, due to the lack of reliable on-site weighing methods, there are great hidden dangers in transportation safety, road construction and maintenance, and the protection of people’s property. If management methods such as verbal propaganda and education of drivers are relied upon, the effect will be very limited.

Utility Model Content

The technical problem to be solved by the utility model is to provide a weighing plate used in a weighing system of a mobile large-piece transport vehicle, which is easy to splice and has fast and accurate measurement.

A weighing plate used in a weighing system of a mobile large-piece transport vehicle comprises: a frame bottom plate and a weighing module;

The middle part of the frame bottom plate has a recessed part matching the shape of the weighing module, and the weighing module is arranged in the recessed part in the middle part of the frame bottom plate; the weighing module and the frame bottom plate are connected as a whole by bolts with pre-tightening force at both ends of the weighing module; both longitudinal sides of the frame bottom plate are provided with snap-fit devices for longitudinal connection; one transverse side of the frame bottom plate is provided with a hinge for transverse connection;

The weighing module comprises: an elastic body and a resistance strain gauge;

The middle part of the elastic body has three bridge-type main load-bearing beams, and two strain holes are provided at the two ends of each main load-bearing beam where the strain is the largest, and the resistance strain gauge is pasted in the strain hole; the front and rear of each main load-bearing beam together form a measuring bridge, forming a multi-sensor matrix arrangement, so that the weighing value of the object being weighed at any position on the weighing module is basically the same;

A circuit board mounting frame with a sealing cover is provided at both ends of the elastic body, a circuit module is installed inside the mounting frame, and the circuit module is connected to the resistance strain gauge for processing and sending weighing data;

The frame bottom plate is also provided with a calibration installation hole for installing a gantry type reaction force device of a load measuring instrument.

Furthermore, thin-walled metal cover plates are welded to both side walls of the strain hole of the weighing module.

Furthermore, the frame bottom plate is made of alloy.

The advantages of the utility model are:

1. After being spliced, the weighing plates of the utility model can form a mobile large-piece transport vehicle weighing system, which can weigh a maximum wheel weight of 20t and an axle weight of 40t. There is no upper limit to the total weight of the vehicle and cargo, the number of axles and wheels, and the weighing accuracy is not less than 5%;

2. The weighing plate of the utility model (or after splicing) can not only weigh vehicles, but also weigh goods.

3. It is portable and can be deployed in a mobile manner. The maximum road slope is 3%, and it is suitable for vehicles with various suspension types.

4. The measurement value can be traced to ensure the weighing data is accurate and reliable.

5. The weighing system formed by splicing the weighing plates of the utility model can be temporarily installed on a solid and flat highway or a spacious road surface to automatically weigh the vehicles passing through the system area, obtain the axle load, total mass of the vehicle and cargo, number of axles, axle type, wheelbase, license plate, time, speed and other information of the passing vehicles, perform over-limit and overload detection on large-scale transport vehicles and upload the detection data to the management system or cloud platform.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

FIG1 is a schematic diagram of the overall structure of a weighing plate of the present invention.

FIG. 2 is a schematic diagram of the three-dimensional structure of the weighing plate of the present invention when viewed from above.

FIG. 3 is a schematic diagram of the exploded structure of the weighing plate of the present invention from top view.

FIG. 4 is a schematic diagram of the exploded structure of the weighing plate of the present invention when viewed from above.

FIG. 5 is a front view of the weighing plate of the present invention.

FIG. 6 is a top view of the weighing plate of the present invention.

FIG. 7 is a left view of the weighing plate of the present invention.

FIG8 is a schematic structural diagram of a weighing plate of the utility model used in a weighing system of a mobile large-piece transport vehicle.

Detailed ways

As shown in FIG. 1 to FIG. 8 , a weighing plate 1 used in a weighing system of a mobile large-piece transport vehicle comprises: a frame bottom plate 11 and a weighing module 12;

The middle part of the frame bottom plate 11 has a recessed portion matching the shape of the weighing module 12, and the weighing module 12 is arranged in the recessed portion in the middle part of the frame bottom plate 11; the weighing module 12 and the frame bottom plate 11 are connected as a whole by bolts 13 with pre-tightening force at both ends of the weighing module 12; both longitudinal sides of the frame bottom plate 11 are provided with snap devices 111 for longitudinal connection; and one transverse side of the frame bottom plate 11 is provided with a hinge 112 for transverse connection;

The weighing module 12 comprises: an elastic body 121 and a resistance strain gauge 122; the middle part of the elastic body 121 has three bridge-type main load-bearing beams, and two strain holes 1211 are provided at the two ends of each main load-bearing beam where the strain is the largest, and the resistance strain gauge 122 is pasted in the strain hole 1211; the front and rear of each main load-bearing beam together form a measuring bridge, forming a multi-sensor matrix arrangement, so that the weighing value of the object being weighed at any position on the weighing module 12 is basically the same;

A circuit board mounting frame 123 with a sealing cover is provided at both ends of the elastic body 121, and a circuit module is installed inside the mounting frame 123, and the circuit module is connected to a resistance strain gauge 122 (sensor) for processing and sending weighing data;

Thin-walled metal cover plates 1212 are welded to both side walls of the strain hole 1211 of the weighing module 12 to prevent water vapor, dust or other impurities from entering.

The frame bottom plate 11 is also provided with a calibration installation hole 113 for installing the gantry type reaction force device 301 of the load measuring instrument 300. The frame bottom plate 11 is made of alloy, and the bottom has an anti-slip design.

There are multiple weighing plates 1 mentioned above. Multiple weighing plates 1 are connected through longitudinal snap devices 111 to form a weighing plate group A group, and then another multiple weighing plates 1 are connected through longitudinal snap devices 111 to form another weighing plate group B group (the same as group A), and then the weighing plate group A group and the weighing plate group B group are spliced through transverse hinges to form a mobile large-scale transport vehicle weighing system 100. When weighing the vehicle formally, it is necessary to arrange two mobile large-scale transport vehicle weighing systems 100, and arrange the two mobile large-scale transport vehicle weighing systems 100 according to the distance between the two rows of tires of the large-scale transport vehicle to be weighed. The large-scale transport vehicle drives smoothly on the two constructed weighing systems 100, ensuring that all axles pass through the weighing module 12 at least once, and obtain the weighing data of each axle load and the total mass of the vehicle and cargo from the weighing data processor of the circuit module.

The weighing plates of the utility model can form a mobile large-scale transport vehicle weighing system after being spliced, which can weigh a maximum wheel weight of 20t, an axle weight of 40t, and no upper limit on the total weight of the vehicle and cargo, and no upper limit on the number of axles and wheels, and the weighing accuracy is not less than 5%; the weighing plates of the utility model (or after being spliced) can not only weigh vehicles, but also weigh cargo; it is portable and can be deployed movably, with a maximum road slope of 3%, and is suitable for vehicles of various suspension types; it can trace the value to ensure that the weighing data is accurate and reliable. The weighing system formed by the splicing of the weighing plates of the utility model can be temporarily installed on a solid and flat highway or a spacious road surface, automatically weigh the vehicles passing through the system area, obtain the axle load, total mass of the vehicle and cargo, number of axles, axle type, wheelbase, license plate, time, speed and other information of the passing vehicles, and perform over-limit and overload detection on large-scale transport vehicles and upload the detection data to the management system or cloud platform.

The above embodiments and drawings do not limit the form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims (3)

1. A weighing plate used in a weighing system of a mobile large-piece transport vehicle, characterized in that it comprises: a frame bottom plate and a weighing module; The middle part of the frame bottom plate has a recessed part matching the shape of the weighing module, and the weighing module is arranged in the recessed part in the middle part of the frame bottom plate; the weighing module and the frame bottom plate are connected as a whole by bolts with pre-tightening force at both ends of the weighing module; both longitudinal sides of the frame bottom plate are provided with snap-fit devices for longitudinal connection; one transverse side of the frame bottom plate is provided with a hinge for transverse connection; The weighing module comprises: an elastic body and a resistance strain gauge; The middle part of the elastic body has three bridge-type main load-bearing beams, and two strain holes are provided at the two ends of each main load-bearing beam where the strain is the largest, and the resistance strain gauge is pasted in the strain hole; the front and rear of each main load-bearing beam together form a measuring bridge, forming a multi-sensor matrix arrangement, so that the weighing value of the object being weighed at any position on the weighing module is basically the same; A circuit board mounting frame with a sealing cover is provided at both ends of the elastic body, a circuit module is installed inside the mounting frame, and the circuit module is connected to the resistance strain gauge for processing and sending weighing data; The frame bottom plate is also provided with a calibration installation hole for installing a gantry type reaction force device of a load measuring instrument. 2. A weighing plate used in a weighing system for a mobile large-piece transport vehicle as described in claim 1, characterized in that thin-walled metal cover plates are welded to both side walls of the strain hole of the weighing module. 3. A weighing plate used in a weighing system for a mobile large-piece transport vehicle as claimed in claim 1, characterized in that the frame bottom plate is made of alloy.