CN218121132U

CN218121132U - Weighing platform

Info

Publication number: CN218121132U
Application number: CN202220704638.3U
Authority: CN
Inventors: 徐洪海
Original assignee: Shenzhen Innoview Technology Co ltd
Current assignee: Shenzhen Innoview Technology Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-12-23
Anticipated expiration: 2032-03-29

Abstract

The utility model discloses a weighing platform relates to the highway vehicle technical field that weighs. Including basic frame, loader and sensing detection unit, sensing detection unit includes: deformation roof beam, strain measurement circuit and quartzy piezoelectricity measuring circuit. The deformation beam of the basic frame, the loader and the sensing detection unit is in an integrated integral structure. After being installed on the road surface, the fixed supporting beam structure with middle loading and two fixed supporting ends is formed. When the wheel acts on the load carrier, the deformation beam deforms, and the strain measuring circuit and the quartz piezoelectric measuring circuit both generate signals proportional to the load of the wheel. The utility model relates to a weighing platform, measuring accuracy is all high, stability is good, reliable durable, installation maintenance convenience when dynamic and static uses.

Description

Weighing platform

Technical Field

The utility model relates to a weighing platform device technical field that the vehicle weighed specifically is a weighing platform.

Background

At present, two modes of a strain measurement principle and a quartz piezoelectric measurement principle are generally adopted in the field of dynamic vehicle weighing. The strain measurement mode has high measurement accuracy under the static and low-speed conditions of the vehicle, but has poor dynamic response performance and is not suitable for high-speed weighing. The quartz piezoelectric measurement mode is opposite, the dynamic response performance is good, the measurement accuracy is high when the vehicle runs at high speed, and the traditional weighing platform cannot carry out static and low-speed weighing.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a weighing platform device weighs possesses that measuring accuracy is all high, stable good, reliable durable, the convenient advantage is maintained in installation when sound attitude uses, has solved traditional weighing platform and can not carry out the problem that static and low-speed weighed.

For the equal high, good, reliable durable, the convenient purpose of installation maintenance of the measurement accuracy of realization above-mentioned dynamic and static when using, the utility model provides a following technical scheme: a weighing platform device comprising a base frame, a carrier and a sensing and detection unit, the sensing and detection unit comprising: the load-bearing device comprises a deformation beam, a strain measurement circuit and a quartz piezoelectric measurement circuit, wherein a connecting plate is arranged between a load bearing device and the deformation beam and used for transmitting load borne by the load bearing device to the deformation beam, and a weighing platform is provided with a plurality of sensing detection units according to the load 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, sensing detecting element structure for the integration, loader, basic frame, connecting plate are connected as a whole through the welded mode with the deformation roof beam.

As the utility model discloses an optimal technical scheme, basic frame is connected with the end of deformation roof beam, installs on the road surface after, and basic frame forms a whole with the road surface to make the deformation roof beam become both ends fixed, middle loaded solid strutbeam structure.

As a preferred technical scheme of the utility model, sensing detecting element's deformation roof beam adopts high stress concentration structure, the material of deformation roof beam adopts intensity limit height, elasticity limit height, and it is big to yield ratio, and elasticity modulus temperature coefficient is little and stable material, sensing detecting element's strain measurement circuit comprises strainometer and compensating circuit on directly mounting deformation roof beam, sensing detecting element's quartzy piezoelectricity measuring circuit is the quartz section of direct mount on deformation roof beam and its compensating circuit constitutes.

As a preferred technical scheme of the utility model, the strainometer is installed in the even maximum strain distribution district of deformation roof beam, improves sensitivity, the electric bridge that the strainometer is constituteed has utilized differential principle, has guaranteed the measuring degree of accuracy, has heavily carried out zero compensation, zero temperature 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 the utility model discloses an optimized technical scheme, quartzy section is installed on the deformation roof beam, and mounted position department produces tensile or compression when can deformation roof beam warp, have certain pretightning force during the installation of quartzy section.

As a preferred technical scheme of the utility model, strain measurement circuit and quartzy piezoelectricity measurement circuit are two way independent signals of weighing, under static state and low-speed circumstances, mainly with strain measurement circuit's signal, under the high-speed circumstances, mainly with quartzy piezoelectricity measurement circuit's signal, no matter under what kind of speed circumstances, two way signals can all compensate each other, revise each other to improve measurement accuracy.

Compared with the prior art, the utility model provides a weighing platform device weighs possesses following beneficial effect:

this weighing platform device weighs, when the wheel is used in on the loader through setting up, the deformation roof beam produces and warp, and measurement circuit and quartzy piezoelectricity measurement circuit all produce the signal proportional with the wheel load, and measurement accuracy is all high, stability is good, reliable durable, installation maintenance is convenient when the dynamic and static uses.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the sensing and detecting unit of the present invention.

In the figure: 1. a base frame; 2. a carrier; 3. a sensing detection unit; 301. a deformation beam; 302. a strain measurement circuit; 303. a quartz piezoelectric measuring circuit; 4. a connecting plate; 5. a strain gauge; 6. and (5) slicing quartz.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1, a weighing platform device includes a base frame 1, a carrier 2 and a sensing unit 3, where the sensing unit 3 includes: a deformation beam 301, a strain measurement circuit 302 and a quartz piezoelectric measurement circuit 303. Be provided with connecting plate 4 between loader 2 and the deformation roof beam 301 for on transferring the load that loader 2 bore to deformation roof beam 301, weighing platform sets up a plurality of sensing detecting element 3 according to weighing platform bearing capacity and the intensity of roof beam that meets an emergency.

In this embodiment, the connecting plate 4 effectively transmits the load to the deformation beam 301, and the data detected by the plurality of sensing units 3 are more accurate.

Specifically, the carrier 2, the base frame 1 and the sensing detection unit 3 are of an integrated structure, and the carrier 2, the base frame 1, the connecting plate 4 and the deformation beam 301 are connected into a whole in a welding manner.

In this embodiment, the strength between the carrier 2, the base frame 1 and the sensing unit 3 is high, and the sensing unit is not easily damaged.

Specifically, the end of the basic frame 1 is connected with the end of the deformation beam 301, and after the basic frame 1 is installed on the road surface, the basic frame 1 and the road surface form a whole, so that the deformation beam 301 is of a clamped beam structure with two fixed ends and middle loading.

In this embodiment, the strength between the base frame 1 and the deformation beam 301 is higher, and the load is larger.

Specifically, the deformation roof beam 301 of sensing detecting element 3 adopts high stress concentration structure, the material of deformation roof beam 301 adopts intensity limit height, elasticity limit height, and the yield ratio is big, and elasticity modulus temperature coefficient is little and stable material, the strain measurement circuit 302 of sensing detecting element 3 comprises strainometer 5 and its compensating circuit of direct mount on deformation roof beam 301, and the quartz piezoelectricity measurement circuit 303 of sensing detecting element 3 comprises for quartz section 6 and its compensating circuit of direct mount on deformation roof beam 301.

In this embodiment, the deformation effect of the deformation beam 301 is better and not easy to damage.

Specifically, strainometer 5 installs in the even maximum strain distribution area of deformation roof beam 301, improves sensitivity, the electric bridge that strainometer 5 constitutes has utilized differential principle, has guaranteed the measuring degree of accuracy, has heavily carried out zero compensation, zero temperature compensation, sensitivity compensation at measuring circuit simultaneously, further guarantees measuring result's the degree of accuracy, stability and has increased weighing platform application scope.

In this embodiment, strainometer 5 detection data is more accurate, further guarantees measuring result's the degree of accuracy, stability and has increased weighing platform application scope.

Specifically, the quartz slicing piece 6 is installed on the deformation beam 301, the deformation beam 301 is stretched or compressed when being deformed at the installation position, and a certain pre-tightening force is generated when the quartz slicing piece 6 is installed.

In this embodiment, the quartz slices 6 are not easily damaged when the deformation beam 301 is deformed.

Specifically, the strain measurement circuit 302 and the quartz piezoelectric measurement circuit 303 are two independent weighing signals, and under static and low-speed conditions, the signal of the strain measurement circuit 302 is mainly used, and under high-speed conditions, the signal of the quartz piezoelectric measurement circuit 303 is mainly used, and under any speed condition, the two signals can be mutually compensated and corrected to improve the measurement precision.

In this embodiment, the strain measurement circuit 302 and the quartz piezoelectric measurement circuit 303 can compensate and correct each other for each other no matter at what speed, so as to improve the measurement accuracy.

The utility model discloses a theory of operation and use flow: when the wheel acts on the loader 2, the deformation beam 301 deforms, the strain measurement circuit 302 and the quartz piezoelectric measurement circuit 303 both generate signals proportional to the wheel load, the strain measurement circuit 302 is composed of the strain gauge 5 directly mounted on the deformation beam 301 and a compensation circuit thereof, a bridge composed of the strain gauge 5 applies a differential principle to ensure the measurement accuracy, meanwhile, zero point compensation, zero point temperature compensation, sensitivity temperature compensation and sensitivity compensation are carried out on the measurement circuit, the accuracy and stability of the measurement result are further ensured, and the application range of a weighing platform is increased, the quartz piezoelectric measurement circuit 303 of the sensing detection unit 3 is composed of the quartz slice 6 directly mounted on the deformation beam 301 and a compensation circuit thereof, the strain measurement circuit 302 and the quartz piezoelectric measurement circuit 303 are two independent weighing signals, under the static and low speed conditions, the signal of the strain measurement circuit 302 is mainly used, under the high speed condition, the signal of the quartz piezoelectric measurement circuit 303 is mainly used, under the high speed condition, the two paths of signals can be mutually compensated and mutually corrected to improve the measurement accuracy, when the measurement is used, the measurement circuit 302 is high in the static state, the stability is durable, the dynamic and the stability is convenient to install, and the stability is convenient to install.

In conclusion, when the wheel acts on the loader 2, the deformation beam 301 deforms, the strain measurement circuit 302 and the quartz piezoelectric measurement circuit 303 both generate signals proportional to the wheel load, and the weighing platform device is high in measurement accuracy, good in stability, reliable, durable and convenient to install and maintain during dynamic and static use.

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 one of 8230; \8230;" 8230; "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 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

1. The utility model provides a weighing platform, includes basic frame (1), loader (2) and sensing detection unit (3), its characterized in that: the sensing unit (3) includes: deformation roof beam (301), strain measurement circuit (302) and quartzy piezoelectricity measurement circuit (303), be provided with connecting plate (4) between loader (2) and deformation roof beam (301) for on transferring deformation roof beam (301) with the load that loader (2) bore, the weighing platform sets up a plurality of sensing detecting element (3) according to the intensity of weighing platform bearing capacity and strain roof beam.

2. A weighing scale according to claim 1 wherein: the load carrier (2), the base frame (1) and the sensing detection unit (3) are of an integrated structure, and the load carrier (2), the base frame (1), the connecting plate (4) and the deformation beam (301) are connected into a whole in a welding mode.

3. A weighing scale according to claim 1 wherein: the end of the basic frame (1) is connected with the end of the deformation beam (301), and after the basic frame (1) is installed on the road surface, the basic frame (1) and the road surface form a whole, so that the deformation beam (301) is of a clamped beam structure with two fixed ends and middle loading.

4. A weighing scale according to claim 1 wherein: the deformation roof beam (301) of sensing detecting element (3) adopts high stress concentration structure, the material of deformation roof beam (301) adopts intensity limit height, elasticity limit height, and it is big to yield ratio, and elasticity modulus temperature coefficient is little and stable material, strain measurement circuit (302) of sensing detecting element (3) comprise strainometer (5) and its compensating circuit on deformation roof beam (301) by direct mount, quartz piezoelectricity measurement circuit (303) of sensing detecting element (3) are quartz section (6) and compensating circuit on deformation roof beam (301) for direct mount.

5. A weighing scale according to claim 4 wherein: the strain gauge (5) is arranged in a uniform maximum strain distribution area of the deformation beam (301), the sensitivity is improved, a bridge formed by the strain gauge (5) utilizes a differential principle, the measuring accuracy is ensured, zero compensation, zero temperature compensation, sensitivity temperature compensation and sensitivity compensation are carried out on a measuring circuit, the accuracy and the stability of a measuring result are further ensured, and the application range of a weighing platform is enlarged.

6. A weighing scale according to claim 4 wherein: the quartz slice (6) is arranged on the deformation beam (301), the deformation beam (301) at the installation position can be stretched or compressed when deformed, and a certain pretightening force is generated when the quartz slice (6) is arranged.

7. A weighing scale according to claim 4 wherein: the strain measurement circuit (302) and the quartz piezoelectric measurement circuit (303) are two independent weighing signals, signals of the strain measurement circuit (302) are mainly used under static and low-speed conditions, signals of the quartz piezoelectric measurement circuit (303) are mainly used under high-speed conditions, and the two signals can be mutually compensated and corrected no matter what speed condition is adopted, so that the measurement precision is improved.