CN218121133U - Weighing platform device weighs - Google Patents
Weighing platform device weighs Download PDFInfo
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- CN218121133U CN218121133U CN202220712696.0U CN202220712696U CN218121133U CN 218121133 U CN218121133 U CN 218121133U CN 202220712696 U CN202220712696 U CN 202220712696U CN 218121133 U CN218121133 U CN 218121133U
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- strain
- roof beam
- measuring circuit
- weighing
- emergency
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Abstract
The utility model discloses a weighing platform device of weighing relates to road vehicle technical field that weighs. Including basic frame, loader, strain sensing detecting element includes the roof beam that meets an emergency, by the main measuring circuit that the strainometer of direct mount on the roof beam that meets an emergency constitutes, install on the roof beam that meets an emergency and detect the roof beam deformation volume that meets an emergency and then measure weight as the deformation sensor of auxiliary measuring circuit, basic frame, loader, strain sensing detecting element's strain roof beam, for integration overall structure form, install behind the road surface, form the solid beam structure of middle loading, both ends solid, when the wheel is used in the loader, the roof beam that meets an emergency produces deformation, and main measuring resistance and the auxiliary measuring circuit output on the roof beam that meets an emergency are proportional signal with the wheel load, the utility model relates to a weighing platform device, measurement accuracy is high, stability is good, and is reliably durable, installation maintenance convenience.
Description
Technical Field
The utility model relates to a road vehicle technical field that weighs specifically is a weighing platform device weighs.
Background
At present, the field of dynamic vehicle weighing generally adopts the mode of strain detection, and there are three common product forms:
the first kind comprises loader, weighing sensor, basic frame, adopts screw thread or spacing mode to connect between the three, and this kind of mode, static, low-speed under the condition, the precision of weighing is high, easy maintenance, but dynamic response is not good, and the vehicle high-speed condition is weighed inaccurately, and the easy not hard up harm, reliability stability is not enough.
The second kind comprises loader, straining roof beam, basic frame, adopts welded mode to form whole earlier between the three, then installs strain transducer on straining the roof beam and weighs, this kind of mode, easy maintenance, but strain transducer test mode, the degree of accuracy is not high, and receives the influence of environment and mounted position, installation stress big, reliability stability is not enough.
The third kind is rectangular shape weighing sensor, and the loader is a part of weighing sensor elastomer, and this kind of mode, reliability stability is good, but the weighing sensor elastomer can't be done too greatly, can not detect the full eigenvalue of wheel, and maintain inconvenient, can only reinstall after damaging.
SUMMERY OF THE UTILITY MODEL
The utility model provides a weighing platform device possesses the degree of accuracy height, the reliable durable, simple and convenient advantage of structure to solve the problem that exists among the above-mentioned background art.
For the purpose that realizes the degree of accuracy height, structure reliable durable, simple and convenient, the utility model provides a following technical scheme: the utility model provides a weighing platform device, includes basic frame, loader, strain sensing detecting element includes strain beam, main measuring circuit and auxiliary measuring circuit. The weighing platform device is characterized in that a connecting plate is arranged between the loader and the strain beam and used for transmitting load born by the loader to the strain beam, and a plurality of strain sensing detection units are arranged on the weighing platform device according to the bearing capacity of the weighing platform and the strength of the strain beam.
As a preferred technical scheme of the utility model, loader, basic frame, strain sensing detecting element structure for the integration, the roof beam that meets an emergency among loader, basic frame, the connecting plate and the strain sensing detecting element is connected as a whole through the welded mode.
As the utility model discloses an optimal technical scheme, basic frame is connected with the end of meeting an emergency roof beam, installs on the road surface after, and basic frame forms a whole with the road surface to make the roof beam that meets an emergency become both ends fixed, middle loaded solid strutbeam structure.
As an optimal technical scheme of the utility model, strain sensing detecting element's strain roof beam adopts high stress concentration structure, and strain roof beam's material adopts intensity limit height, elasticity limit height, and it is big to yield ratio, and elastic modulus temperature coefficient is little and stable material, strain sensing detecting element's main measuring circuit comprises strainometer and compensating circuit on strain roof beam of direct mount, strain sensing detecting element's auxiliary measuring circuit is for detecting strain sensor of strain roof beam deformation volume and constitutes.
As a preferred technical scheme of the utility model, the strainometer is installed in the even maximum strain distribution region of straining the roof beam, improves sensitivity, and the electric bridge that the strainometer is constituteed has guaranteed the measuring degree of accuracy owing to utilized differential principle, has heavily carried out zero compensation, zero temperature compensation, sensitivity temperature compensation (elastic modulus compensation), sensitivity compensation at measuring circuit simultaneously, further guarantees measuring result's the degree of accuracy, stability and has increased weighing platform application scope.
As a preferred technical scheme of the utility model, strain sensor installs on the roof beam that meets an emergency, and the roof beam that meets an emergency is provided with the position of installation strain sensor, and strain sensor installs after on the roof beam that meets an emergency, can detect the deformation of the roof beam that meets an emergency, because the deformation volume of the roof beam that meets an emergency is rather than the load proportional relation who receives, so strain sensor can detect the load that the roof beam that meets an emergency received through the deformation that detects the measuring beam.
As an optimal technical scheme of the utility model, main measuring circuit and auxiliary measuring circuit are two way independent signals of weighing, and two way signals can the exclusive use, also can connect into the signal of the same kind in parallel and use, can also use by mixing simultaneously, and weighing platform partly meets an emergency roof beam and adopts main measuring circuit's signal, partly meets an emergency roof beam and adopts auxiliary measuring circuit's signal promptly, can also singly meet an emergency roof beam one end and adopt main measuring circuit's signal, one end adoption auxiliary measuring circuit's signal.
As an optimized technical scheme of the utility model, when two kinds of signals that the weighing platform adopted were mixed and were used, can compensate the auxiliary measuring circuit according to main measuring circuit's signal.
Compared with the prior art, the utility model provides a weighing platform device weighs possesses following beneficial effect:
1. the weighing platform device has the advantages that the differential principle is applied to the main measuring circuit consisting of the modularized strain gauges, the measuring accuracy can be guaranteed, meanwhile, zero point compensation, zero point temperature compensation, elastic modulus compensation and sensitivity compensation are carried out in the main measuring circuit, the accuracy and the stability of measuring results can be further guaranteed, and the application range of the weighing platform is enlarged.
2. This weighing scale platform device weighs, deformation sensor installs back on straining the roof beam, can detect the deformation of straining the roof beam, because the deformation volume of straining the roof beam is proportional relation rather than the load that receives, so deformation sensor can detect the load that it received through the deformation that detects the straining roof beam, and then measuring weight is used for auxiliary measurement, and deformation sensor and main measuring circuit provide two way independent weighing signal, two way signals can the exclusive use, also can connect in parallel into the signal of the same kind and use, simultaneously can also the mixed use.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the strain sensing unit of the present invention.
In the figure: 1. a base frame; 2. a carrier; 3. a strain sensing detection unit; 31. a strain beam; 32. a main measurement circuit; 33. an auxiliary measurement circuit; 4. a connecting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-2, the utility model discloses a weighing scale platform device, including basic frame 1, loader 2, strain sensing detecting element 3, the main measuring circuit 32 that constitutes by the modular strainometer has utilized differential principle, can ensure measuring degree of accuracy, has carried out zero compensation, zero temperature compensation, elastic modulus compensation, sensitivity compensation simultaneously in main measuring circuit 32, can further ensure measuring result's the degree of accuracy, stability and increased weighing platform application scope, strain sensing detecting element 3 includes straining beam 31, main measuring circuit 32 and auxiliary measuring circuit 33, and deformation sensor installs the back on straining beam 31, can detect straining beam 31's deformation, because straining beam 31's deformation volume becomes proportional relation with its load that receives, so deformation sensor can detect its load that receives through the deformation that detects straining beam 31, and then measuring weight is used as auxiliary measurement, and deformation sensor and main measuring circuit 32 provide two tunnel independent weighing signal, and two tunnel independent use, also can become one way signal use in parallel connection simultaneously, can also the mixed use.
Specifically, a connecting plate 4 is disposed between the load carrier 2 and the strain beam 31 for transmitting the load borne by the load carrier 2 to the strain beam 31, the weighing scale device is provided with a plurality of strain sensing units 3 according to the weight of the weighing scale and the strength of the strain beam 31, the connecting plate 4 is used for transmitting the load borne by the load carrier 2 to the strain beam 31, and the weighing scale device can be provided with a plurality of strain beams 31 according to the weight of the weighing scale and the strength of the strain beam 31.
Specifically, the load carrier 2, the base frame 1 and the strain sensing detection unit 3 are of an integrated structure, the load carrier 2, the base frame 1, the connecting plate 4 and the strain beam 31 in the strain sensing detection unit 3 are connected into a whole in a welding mode, the base frame 1 is installed on the road surface and then forms a whole with the road surface, and the base frame 1 is connected with the end of the strain beam 31, so that the strain beam 31 is of a fixed beam structure with two fixed ends and middle loading, and is installed on occasions such as expressways, common roads, factories and ports to measure passing vehicles.
Specifically, the strain beam 31 of the strain sensing unit 3 adopts a highly stress-concentrated structure, the strain beam 31 is made of a material with a high strength limit, a high elasticity limit, a large yield ratio and a small and stable elastic modulus temperature coefficient, the main measurement circuit 32 of the strain sensing unit 3 is composed of a strain gauge directly mounted on the strain beam 31 and a compensation circuit thereof, and the auxiliary measurement circuit 33 of the strain sensing unit 3 is composed of a strain sensor for detecting the deformation amount of the strain beam 31.
Specifically, the strain gauges are arranged in the uniform maximum strain distribution area of the strain beam 31, so that the sensitivity is improved, the bridge formed by the strain gauges guarantees the measuring accuracy due to the application of the differential principle, and meanwhile, zero compensation, zero temperature compensation, sensitivity temperature compensation elastic modulus compensation and sensitivity compensation are carried out on a measuring circuit, so that the accuracy and stability of the measuring result are further guaranteed, and the application range of the weighing platform is enlarged.
Specifically, the strain sensor is mounted on the strain beam 31, the strain beam 31 is provided with a position for mounting the strain sensor, and after the strain sensor is mounted on the strain beam 31, the strain sensor can detect the deformation of the strain beam 31, and since the deformation of the strain beam 31 is in proportion to the load applied thereto, the strain sensor can detect the load applied to the strain beam 31 by detecting the deformation of the measuring beam.
Specifically, the main measuring circuit 32 and the auxiliary measuring circuit 33 are two independent weighing signals, two signals can be used independently, can also be used as one signal in parallel, and can also be used in a mixed manner, namely, a part of the strain beam 31 of the weighing platform adopts the signal of the main measuring circuit 32, a part of the strain beam 31 adopts the signal of the auxiliary measuring circuit 33, and one end of a single strain beam 31 can also adopt the signal of the main measuring circuit 32, and the other end adopts the signal of the auxiliary measuring circuit 33.
Specifically, when two signals adopted by the weighing platform are mixed for use, the auxiliary measuring circuit 33 can be compensated according to the signal of the main measuring circuit 32
The utility model discloses a theory of operation and use flow: when the load-bearing device is used, after the load-bearing device 2 is weighed, the borne load is transmitted to the strain beam 31 through the connecting plate 4, when the stress in the strain beam 31 changes, the strain gauges synchronously sense deformation, the main measurement circuit 32 formed by the modularized strain gauges utilizes the differential principle, the measurement accuracy can be guaranteed, meanwhile, zero point compensation, zero point temperature compensation, elastic modulus compensation and sensitivity compensation are carried out in the main measurement circuit 32, the accuracy and stability of the measurement result can be further guaranteed, and the application range of a weighing platform is increased.
In summary, in the weighing scale apparatus, the main measurement circuit 32 formed by the modularized strain gauges employs the differential principle, so that the measurement accuracy can be ensured, and meanwhile, the main measurement circuit 32 is subjected to zero compensation, zero temperature compensation, elastic modulus compensation and sensitivity compensation, so that the accuracy and stability of the measurement result can be further ensured, and the application range of the scale is increased; after the deformation sensor is installed on the strain beam 31, the deformation of the strain beam 31 can be detected, because the deformation amount of the strain beam 31 is in proportional relation with the load received by the strain beam, the deformation sensor can detect the load received by the strain beam 31 by detecting the deformation of the strain beam, further the measured weight is used as auxiliary measurement, the deformation sensor and the main measurement circuit 32 provide two paths of independent weighing signals, the two paths of signals can be used independently, the two paths of signals can also be connected in parallel to form one path of signal for use, and meanwhile, the two paths of signals can also be used in a mixed mode.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
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 alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a weighing platform device weighs, includes basic frame (1), loader (2), strain sensing detecting element (3) are including straining roof beam (31), main measuring circuit (32) and auxiliary measuring circuit (33), be provided with connecting plate (4) between loader (2) and the roof beam that strains (31) for on transferring the load that loader (2) bore to roof beam (31) that strains, this weighing platform device sets up a plurality of strain sensing detecting element (3) according to the intensity of weighing platform bearing capacity and roof beam (31) that strains.
2. A weighing scale device according to claim 1 wherein: the load carrier (2), the base frame (1) and the strain sensing detection unit (3) are of an integrated structure, and the load carrier (2), the base frame (1), the connecting plate (4) and a strain beam (31) in the strain sensing detection unit (3) are connected into a whole in a welding mode.
3. A weighing scale device according to claim 1 wherein: the foundation frame (1) is connected with the end of the strain beam (31), and after the foundation frame (1) is installed on a road surface, the foundation frame (1) and the road surface form a whole, so that the strain beam (31) is of a clamped beam structure with two fixed ends and middle loading.
4. A weighing scale device according to claim 1 wherein: the strain beam (31) of the strain sensing detection unit (3) adopts a high stress concentration structure, a main measurement circuit (32) of the strain sensing detection unit (3) consists of a strain gauge directly mounted on the strain beam (31) and a compensation circuit thereof, and an auxiliary measurement circuit (33) of the strain sensing detection unit (3) consists of a strain sensor for detecting the deformation quantity of the strain beam (31).
5. A weighing scale device according to claim 4 wherein: the strain gauges are arranged in a uniform maximum strain distribution area of the strain beam (31).
6. A weighing scale device according to claim 4 wherein: the strain sensor is arranged on the strain beam (31), and the strain beam (31) is provided with a position for mounting the strain sensor.
7. A weighing scale device according to claim 4 wherein: the main measuring circuit (32) and the auxiliary measuring circuit (33) are two paths of independent weighing signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220712696.0U CN218121133U (en) | 2022-03-29 | 2022-03-29 | Weighing platform device weighs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220712696.0U CN218121133U (en) | 2022-03-29 | 2022-03-29 | Weighing platform device weighs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218121133U true CN218121133U (en) | 2022-12-23 |
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ID=84493973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220712696.0U Active CN218121133U (en) | 2022-03-29 | 2022-03-29 | Weighing platform device weighs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218121133U (en) |
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- 2022-03-29 CN CN202220712696.0U patent/CN218121133U/en active Active
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