CN208568049U - A kind of road vehicle dynamic weigher - Google Patents
A kind of road vehicle dynamic weigher Download PDFInfo
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- CN208568049U CN208568049U CN201721726037.8U CN201721726037U CN208568049U CN 208568049 U CN208568049 U CN 208568049U CN 201721726037 U CN201721726037 U CN 201721726037U CN 208568049 U CN208568049 U CN 208568049U
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- elastomer
- road
- foil gauge
- vehicle dynamic
- dynamic weigher
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Abstract
The utility model discloses a kind of road vehicle dynamic weigher, including the elastomer being embedded in road engineering material and at least one be used to experience elastomer deformation and be translated into the foil gauge of electric signal.When road of the vehicle by being equipped with the road vehicle weighing device, vehicle weight, which is transferred to deformable body through road engineering material, to be made elastomer deformation occurs, to make the foil gauge resistance value on elastomer change, the variation of foil gauge resistance value is exported by Wheatstone bridge voltage signal.
Description
Technical field
The utility model relates to a kind of road vehicle dynamic weighers, belong to Dynamic Weighing Technology field.
Background technique
Dynamic weigher is widely used in weight metering charging, overrun testing etc. application, in traffic administration, transfinites and controls
It plays an important role in reason and Management.Current weighing device, including static weighing device and dynamic weighing
Device.Dynamic weigher is usually made of supporting body and sensor, and supporting body is mounted in the groove of road bed, for holding
It carries all or part of vehicle weight and the weight transmitting that is carried it is to sensor；Sensor is set to below supporting body, is used
In by its stress check calculation be electric signal.
For the vehicle of dynamic traveling after the weighing unit for being equipped with sensor, sensor experiences the pressure letter of dynamic vehicle
Number, then a series of analysis, processing are carried out by processor, the dynamic weighing numerical value of vehicle is finally calculated.
The weighing device being installed in road bed groove at present faces following Railway Project:
1. direct vehicle weight, supporting body and sensor deflection are big, and equipment life is low；
2. supporting body surface is as it can be seen that vehicle driver often uses acceleration and deceleration, around sides such as S, top jack on the carrier
The weighing accuracy of formula influence dynamic weigher；
3. in order to avoid supporting body load capacity is transmitted to road surface, between the groove inner wall of supporting body and road bed is all reserved
Gap, but reserved gap then causes the objects such as water or silt to enter below supporting body gradually accumulation and undertake part should to be held by sensor
The pressure of load is so as to cause weighing inaccuracy, it is therefore desirable to which periodic maintenance is used to clear up sundries below supporting body；
4. vehicle dynamic can promote supporting body to move in parallel thus and road when passing through to supporting body horizontal force, the horizontal force
Face basis generates interference, influences weighing precision, for the influence for preventing the horizontal force, must be provided with water between supporting body and road bed
Flat limiting device, so as to cause weighting device structure complexity；
5. supporting body mostly uses metal material, influence to weigh effect to reduce vehicle by generating vibration when its surface,
Its usual surface is smooth as far as possible, and metal surface coefficient of friction is less than concrete/bituminous pavement coefficient of friction, to make vehicle
Braking has an impact.
Summary of the invention
The utility model aim is to provide that a kind of deformation quantity is small, structure is simple, Maintenance free, hidden and do not influence road surface
Current road vehicle dynamic weigher and method.
In order to achieve the above object, road vehicle dynamic weigher provided by the utility model, the weighing device is embedded
In in pavement material；The elastomer is bar shaped；The elastomer cross-sectional shape is I-shaped or H-type, for according to road surface
On the pressure of vehicle road pavement deformation occurs；The weighing device includes elastomer, sensing chamber and at least one foil gauge；Institute
Elastomer is stated for deformation occurs according to the pressure of the vehicle road pavement on road surface；The sensing chamber is used to mention for the elastomer
For deformation space；The foil gauge is set on the elastomer or in the elastomer, for obtaining and the matter of the vehicle
Measure the deformation characteristics data of the corresponding elastomer.
In above-mentioned road vehicle dynamic weigher, it is preferred that the foil gauge includes semiconductor gauge and/or gold
Belong to resistance strain gage.
In above-mentioned road vehicle dynamic weigher, it is preferred that the elastomer section configuration is I-shaped or H-type.
In above-mentioned road vehicle dynamic weigher, it is preferred that the foil gauge is attached at the work perpendicular to road surface
On the web of font or H-type elastomer.
In above-mentioned road vehicle dynamic weigher, it is preferred that the upper surface of the elastomer and the road surface away from
From being 5cm between 40cm.
In above-mentioned road vehicle dynamic weigher, it is preferred that the weighing device also includes Wheatstone bridge；Its
In, the deformation characteristics data are foil gauge change in resistance data, and the Wheatstone bridge is used to become the foil gauge resistance value
Change data and is converted to analog voltage signal.
In above-mentioned road vehicle dynamic weigher, it is preferred that the weighing device also includes data collection and analysis mould
Block, the data collection and analysis module are used to being converted to the analog voltage signal into digital signal and according to the digital signal
The axis tuple evidence for obtaining vehicle is calculated with the timing of the digital signal, according to the axis tuple according to acquisition vehicle weight.
In above-mentioned road vehicle dynamic weigher, it is preferred that the elastomer material is metal.
In above-mentioned road vehicle dynamic weigher, it is preferred that the weighing device also includes fixed module, described solid
Cover half block is for the weighing device to be fixed in pavement material.
In above-mentioned road vehicle dynamic weigher, it is preferred that the sensing chamber be set to inside the elastomer or
It is set between elastomer deformation side and ground end.
The advantageous effects of the utility model are: elastic in road vehicle dynamic weigher provided by the present invention
Protection of the deformation quantity of body by road engineering material, when plastic deformation does not occur for road engineering material, elastomer deformation quantity
It is minimum, to guarantee the service life of weighing device；Road vehicle weighing device is embedded in road surface and issues, and can not be found；Structure letter
It is single, Maintenance free；Surface friction coefficient is not influenced, will not be impacted to by the braking of vehicle.
Detailed description of the invention
Fig. 1 is a kind of structure chart of embodiment of the utility model；
Fig. 2 is the structural block diagram of foil gauge resistance variations acquisition；
Fig. 3 is that six-axle car passes through the datagram acquired after a kind of embodiment of the utility model.
Specific embodiment
It please refers to shown in Fig. 1, road vehicle dynamic weigher provided by the present invention specifically includes: the weighing device
It is embedded in pavement material 1, and there is certain distance with road surface and ground end；The weighing device includes elastomer 2, sensing chamber 4
With at least one foil gauge 3；The elastomer 2 is for according to the pressure of the vehicle road pavement on road surface, deformation occurs；The biography
Sense chamber 4 is used to provide deformation space for the elastomer 2；The foil gauge 3 is set on the elastomer 2, for obtain with
The deformation characteristics data of the corresponding elastomer 2 of the quality of the vehicle；Wherein, the elastomer is I-shaped or H-type,
The foil gauge 3 can be semiconductor gauge and/or metal resistance strain gauge, and the foil gauge 3 is attached at institute perpendicular to road surface
It states on I-shaped or H-type elastomer 2 web.In real work, the road vehicle dynamic weigher mainly includes insertion
It is attached to the foil gauge 3 of surface of elastomer in the elastomer 2 and cloth of road engineering material, elastomer 2 and road engineering material are total
With the sensing chamber 4 formed, senses and flexible packing material can be filled in chamber 4；When vehicle is by sensing chamber 4, road engineering material 1
Pressure of the vehicle to it is transmitted to elastomer 2, deformation occurs under pressure for elastomer 2, filling flexible packing material
Sensing chamber 4 is that elastomer 2 provides deformation stroke, correspondingly, the resistance value of foil gauge 3 becomes with the deformation of elastomer 2
Change, to generate resistance variations, can be obtained the corresponding quality of vehicle according to the resistance variations.With this, since road vehicle is dynamic
State weighing device is embedded in road surface or less and forms an entirety with road engineering material, therefore the road vehicle dynamic weighing fills
It sets without being safeguarded；The road surface for installing the weighing-appliance no longer needs to fluting and installs other weighing sensors, the intensity on road surface
It can guarantee, pavement life will be better than the weighing-appliance of road surfacing weighing sensor；Simultaneously as the weighing-appliance insertion
On road surface hereinafter, driver is invisible, therefore using targetedly acceleration and deceleration, around S, top jack etc. on weighing-appliance region
The behavior that mode influences the weighing accuracy of dynamic weigher will be controlled effectively.
In the above-described embodiments, the sensing chamber 4 is exactly the structure that bridge is similar to elastomer and road engineering material, from
And guarantee to generate more apparent deformation when elastomer 2 is under pressure, (sensing chamber) can be without any east between two bridge piers
West can also have some flexible materials that power is not subject in certain deformation range；The utility model is herein and with no restrictions.
It please refers to shown in Fig. 3, in above-mentioned an embodiment of the present invention, the weighing device also may include favour stone electricity
Bridge and data collection and analysis module (not shown)；Wherein, the deformation characteristics data are foil gauge change in resistance data, the favour
Stone electric bridge is used to the foil gauge change in resistance data being converted to analog voltage signal；The data collection and analysis module is used
In by the analog voltage signal be converted to digital signal and according to the digital signal with the timing of the digital signal calculate
The axis tuple evidence for obtaining vehicle, according to the axis tuple according to acquisition vehicle weight.When vehicle passes through, according to as shown in Figure 3
The digital signal is carried out validity screening according to the threshold value of setting, number is believed by the timing of digital signal and digital signal
Number and the timing of digital signal select to generate effective axle for vehicle information carrying number；According to effective axle for vehicle information carrying number of selection, press
The effective axis tuple evidence for generating weighing vehicle is calculated according to following formula.
Axis weight=sum (axis information carrying number) * speed * fixed coefficient k；
In actual work, strain sheet resistance can be accessed Wheatstone bridge shown in Fig. 2, its resistance variations is converted into electricity
Buckling, signal export after differential amplifier circuit amplifies to sample circuit, and sample circuit converts a signal into digital signal, single
Piece machine acquires its digital signal.Certainly, in the prior art there is also other conversion circuits and sample circuit, staff can also root
It is used according to actual needs selection, this will not be detailed here for the utility model.
Particular embodiments described above has carried out into one the purpose of this utility model, technical scheme and beneficial effects
Step is described in detail, it should be understood that being not used to limit this foregoing is merely specific embodiment of the utility model
The protection scope of invention, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done,
It should be included within the scope of protection of this utility model.
Claims (7)
1. a kind of road vehicle dynamic weigher, which is characterized in that the weighing device is embedded in pavement material；
The weighing device includes elastomer, sensing chamber and at least one foil gauge；
The elastomer is bar shaped；
The elastomer cross-sectional shape is I-shaped or H-type, for shape to occur according to the pressure of the vehicle road pavement on road surface
Become；
The sensing chamber is used to provide deformation space for the elastomer；
The foil gauge is set on the elastomer or in the elastomer, corresponding with the quality of the vehicle for obtaining
The elastomer deformation characteristics data.
2. road vehicle dynamic weigher according to claim 1, which is characterized in that the foil gauge includes semiconductor
Foil gauge and/or metal resistance strain gauge.
3. road vehicle dynamic weigher according to claim 1, which is characterized in that the elasticity body section is along vehicle
Driving direction arrangement.
4. road vehicle dynamic weigher according to claim 1, which is characterized in that the foil gauge is perpendicular to road surface
It is attached at described I-shaped or H-type elastomer web surface.
5. road vehicle dynamic weigher according to claim 1, which is characterized in that the upper surface of the elastomer with
The distance on the road surface is 5cm between 40cm.
6. road vehicle dynamic weigher according to claim 1, which is characterized in that the weighing device also includes favour
Stone electric bridge；Wherein, the deformation characteristics data are foil gauge change in resistance data, and the Wheatstone bridge is used to answer by described in
Become piece change in resistance data and is converted to analog voltage signal.
7. road vehicle dynamic weigher according to claim 1, which is characterized in that the elastomer material is gold
Belong to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721726037.8U CN208568049U (en) | 2017-12-13 | 2017-12-13 | A kind of road vehicle dynamic weigher |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721726037.8U CN208568049U (en) | 2017-12-13 | 2017-12-13 | A kind of road vehicle dynamic weigher |
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| Publication Number | Publication Date |
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| CN208568049U true CN208568049U (en) | 2019-03-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440881A (en) * | 2019-07-17 | 2019-11-12 | 徐明远 | A kind of single-point weighing system, weighing device and weighing method |
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2017
- 2017-12-13 CN CN201721726037.8U patent/CN208568049U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110440881A (en) * | 2019-07-17 | 2019-11-12 | 徐明远 | A kind of single-point weighing system, weighing device and weighing method |
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