CN103308129A - Portable weighing platform and truck scale - Google Patents
Portable weighing platform and truck scale Download PDFInfo
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- CN103308129A CN103308129A CN 201210069713 CN201210069713A CN103308129A CN 103308129 A CN103308129 A CN 103308129A CN 201210069713 CN201210069713 CN 201210069713 CN 201210069713 A CN201210069713 A CN 201210069713A CN 103308129 A CN103308129 A CN 103308129A
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Abstract
The invention discloses a portable weighing platform, which comprises a pressure sensing pad, which is used for sensing pressure data corresponding to cargo weight according to liquid deformation; a pressure sensor, which is used for converting pressure data into corresponding electric signals; and pressure equalizing plates, which are arranged on the upper surface and the lower surface of the pressure sensing pad and are used for enabling a pressure sensing unit to equally sense cargo pressure. Since the portable weighing platform comprises the pressure sensing pad based on hydraulic change, the pressure sensor and the pressure equalizing plate and the size of the portable weighing platform depends on the contact area between a load bearing object and the ground, during weighing, the goal of weighing can be realized by placing one portable weighing platform between the load bearing object and the ground, a large-area and large-size weighing platform which is needed by a truck scale or an axle weight scale in the prior art is not needed to bear the load bearing object, and the defects that the dead weight of equipment is heavy, the size is large, the assembling cost is higher, the equipment is not portable and the weighing result can be controlled artificially in the prior art are overcome.
Description
Technical field
The present invention relates to a kind of Portable weighing platform and truck scale.
Background technology
At industry fields such as traffic, the goods weight that needs the accurate Calculation vehicles to deliver carries out.At present, there are two kinds of above-mentioned purpose utensils in market, and a kind of is truck scale (Vehicle scale), and a kind of is axle load meter.
Existing truck scale also claims weighbridge, is a kind of track scale that is applicable to highway vehicle, automobile, carriage, rickshaw and weight that various oversize vehicle carries cargo, and its principle of work is to utilize the strain principles of electrical measurement to weigh.Elastic body in LOAD CELLS is pasted with elastometer, forms bridge circuit.When zero load, electric bridge is in equilibrium state, is output as zero; When the elastic body bearing load, each elastometer produces strain proportional to load thereupon, and electric bridge is exported corresponding voltage, can measure the size of load by measuring this voltage.The structure of truck scale comprises: foundation ditch, weighing platform, be installed in weighing platform below a plurality of LOAD CELLS, stick on the elastometer on the LOAD CELLS.After automobile sailed weighing platform into, weighing platform is stressed to be transferred on each LOAD CELLS, the bridge output voltage of corresponding elastometer composition, and the voltage process digital filtering of this output, linear amplification, A/D conversion, CPU processing etc. finally obtain to weigh numerical value.
But the truck scale of above-mentioned this structure owing to using the structure member of the large volumes such as foundation ditch, weighing platform on the structure, causes that the weight of equipment own is large, volume large, assembly cost is higher, without portable, and in addition, its weighing results accuracy is lower.
Axle load meter also claims weighing instrument, overrunning detector, axle test instrument, and it is except field of traffic is used, at the harbour, also there is certain application in first-class field, ore deposit.As shown in Figure 1, its structure comprises carrying platform (not shown) reaction frame 101, pressure transducer 102, lifting jack 103, liner plate 104, axle load meter table top 105 and pedestal 106, slowly cross reaction frame by automobile, change lifting jack 103 acting forces, read the data on the pressure transducer 102, obtain the weight of carrier.
But the axle load meter of this structure is a kind of processing procedure of dynamic data in fact, and therefore, its data error is very large; In addition, comprise the parts that the carrying platform equal-volume is larger on its structure, cause that the weight of equipment own is large, volume is large, assembly cost is higher, without portable.
Summary of the invention
Technical matters to be solved by this invention provides a kind of Portable automobile balance, overcomes defects of the prior art.
For solving the problems of the technologies described above, the invention provides a kind of Portable weighing platform, comprising:
The pressure-sensing pad is used for coming pressure data corresponding to sensing loading weight according to liquid deformation;
Pressure transducer is used for described pressure data is converted to corresponding electric signal;
Equal pressing plates is arranged on the upper and lower surface of pressure-sensing pad, is used for making the even sensing loading in described pressure-sensing unit pressure.
In an optimal technical scheme of the present invention, described pressure-sensing pad comprises: the oil pipe of stress deformation and injection described liquid wherein.
In an optimal technical scheme of the present invention, described oil pipe is built by rubber and fibrous material and is formed.
In an optimal technical scheme of the present invention, described oil pipe is the individual layer setting, or the multilayer setting.
In an optimal technical scheme of the present invention, described oil pipe twist shape is arranged the setting of formation individual layer, or is the setting of circuitous shape arrangement formation multilayer.
In an optimal technical scheme of the present invention, the sealing of an end of described oil pipe, an other end is inserted with described pressure transducer.
In an optimal technical scheme of the present invention, described liquid is hydraulic oil.
In an optimal technical scheme of the present invention, be provided with anti-skid design on the described equal pressing plate.
In an optimal technical scheme of the present invention, the equal pressing plate that is arranged on described pressure-sensing pad upper surface is convex.
In an optimal technical scheme of the present invention, described pressure transducer is the hydraulic pressure transducer of Wireless Data Transmission.
For solving the problems of the technologies described above, the present invention also provides a kind of Portable automobile balance, comprise: the Portable weighing platform that at least one is described above, the CPU that the input electrical signal of described weighing unit is carried out successively the filtering circuit of digital filtering, the linear amplifying circuit that amplifies, analog-to-digital A/D converter, the calculating of loading weight.
Among the present invention, the Portable weighing platform comprises: based on pressure sensing mat, pressure transducer and the equal pressing plate of hydraulic pressure variation, its size depends on the contact area on loads and ground fully, when weighing, as long as can realize weighing at loads and one of ground touching position placement, and do not need truck scale of the prior art or axle load meter to need like that the weighing platform of large tracts of land, large volume to carry loads, thereby overcome that the weight of equipment of the prior art own is large, volume is large, assembly cost is higher, without portable.
Description of drawings
Fig. 1 is the structural representation of axle load meter in the prior art.
Fig. 2 is the vertical section structural representation of Portable weighing platform embodiment one of the present invention.
Fig. 3 is the embodiment of the invention one schematic diagram of weighing.
Fig. 4 is the horizontal profile structure schematic diagram of Portable weighing platform embodiment two of the present invention.
Fig. 5 is the vertical section structural representation of Portable weighing platform embodiment three of the present invention.
Fig. 6 is the functional block diagram schematic diagram of Portable automobile balance of the present invention.
Embodiment
Below in conjunction with drawings and Examples, technical scheme of the present invention is described in further detail.
Fig. 2 is the vertical section structural representation of Portable weighing platform embodiment one of the present invention, and the Portable weighing platform comprises in the present embodiment: pressure-sensing pad 201, pressure transducer 202 and equal pressing plate 203.Be full of hydraulic pressure in the pressure-sensing pad 201 and be higher than the normal atmosphere press liquid, deformation comes pressure data corresponding to sensing loading weight according to the liquid pressurized.This pressure sensitive pad 201 can be by rubber or other macromolecular materials such as TPE, TPV, TPO, TPR, NBR/PFPA, and the one-piece casting such as the textile fibres in reinforcing fiber materials such as the radial, steel fibre forms; Pressure transducer 202 is used for described pressure data is converted to corresponding electric signal.All pressing plate 203 is arranged on the upper and lower surface of described pressure-sensing pad, is used for making the even sensing loading in described pressure-sensing unit pressure, avoids the pressure-sensing pad 201 below the loading to be flattened, and causes pressure data error misalignment.All pressing plate 203 can be made by lightweight intensity sheet material such as carbon fiber board, aluminium alloy plate, steel plate, composite panel etc.All be provided with anti-skid design on the pressing plate 203, increase the friction force between weighing unit and the ground, so that it, prevents that weighing unit is unsceptered greater than the friction force between weighing unit and the loading, throw away such as the tire in being rotated.
In the present embodiment, the equal pressing plate that is arranged on pressure-sensing pad upper surface also can be convex, so that loads pressure evenly distributes better, avoids equal pressing plate to be pressed into spill by tire.
In the present embodiment, pressure-sensing pad 201 can one be cast or firmly connection with the pressing plate of being connected 203.
In the present embodiment, in order to adapt to weighing of different loadings, can be determined according to the contact area on different loadings and ground by the weighing unit size dimension that pressure-sensing pad 201, pressure transducer 202 and equal pressing plate 203 consist of, such as can be with reference to the standard of national associated tire, the contact area of determining tire and ground be determined the size of weighing unit area.
Fig. 3 is the embodiment of the invention one schematic diagram of weighing.As shown in Figure 3, the below only illustrates the weighing unit use procedure in the present embodiment as an example of the load-carrying of four-wheel car example:
Vehicle lay-off on a more flat ground, and is placed a weighing unit 300, totally four weighing units below each tire 301; Equal pressing plate in each weighing unit is distributed to the weight of vehicle on the pressure sensing mat uniformly, and the pressure-sensing pad stress deformation in each weighing unit causes liquid wherein to produce certain pressure data; Each pressure transducer is converted to corresponding electric signal with this pressure data.Obtain respectively electric signal corresponding to each pressure transducer pressure data below four tires, according to these four electric signal, use loading computation method for hot of the prior art can obtain the load-carrying of vehicle.
Those of ordinary skills can be according to the attribute of carrier, and quantity and specification that can the flexible arrangement weighing unit be different such as tire quantity, can arrange the weighing unit of respective amount.
Fig. 4 is the horizontal profile structure schematic diagram of Portable weighing platform embodiment two of the present invention.Be with above-described embodiment structure difference, in the present embodiment, and the oil pipe 401 of filling liquid and stress deformation consists of the pressure-sensing pad of individual layer according to spiral-shaped mode, in other words, use one to be full of oil pressure rotates layout formation one individual layer in a screw fashion greater than the oil pipe 401 of the hydraulic oil of standard atmospheric pressure pressure-sensing pad, the end sealing that is positioned at the spiral center of this oil pipe 401, an other end is connected with pressure transducer 402.When weighing carrier, because all the pressing plate (not shown) can be dispersed in the pressure of loading on the plane of pressure-sensing pad, the every bit that makes oil pipe 401 is pressure-bearing evenly, avoids oil pipe 401 to be flattened, and prevents pressure data measurement misalignment.
In the present embodiment, oil pipe 401 can be built by rubber and fibrous material and be formed.
The weighing unit course of work in the present embodiment two is similar to embodiment one, does not repeat them here.
Fig. 5 is the horizontal profile structure schematic diagram of Portable weighing platform embodiment three of the present invention.Be with above-described embodiment two structure differences, in the present embodiment, and the oil pipe 501 of filling liquid and stress deformation consists of the pressure-sensing pad of multilayer according to round about manner, in other words, use one to be full of oil pressure is arranged formation one multilayer according to round about manner greater than the oil pipe 501 of the hydraulic oil of standard atmospheric pressure pressure-sensing pad, the one end sealing of this oil pipe 501, an other end is connected with pressure transducer 502.When the carrier formula of weighing, because all the pressing plate (not shown) can be dispersed in the pressure of loading on the plane of pressure-sensing pad, the every bit that makes oil pipe 501 is pressure-bearing evenly, avoids oil pipe 501 to be flattened, and prevents pressure data measurement misalignment.
In the above-described embodiments, pressure transducer is the hydraulic pressure transducer of Wireless Data Transmission, and it specifically can select the Changsha titanium to close the Multiple Type pressure transducer that Electronics Equipment Co., Ltd produces; Britain's Larry Ellison (Ellison) Sensitive Object
The PTP702 high-pressure sensor that series GS4200 type silicon-on-sapphire pressure unit, Foshan City's topology Electron equipment Co., Ltd produce.
In the above embodiment of the present invention, power issue for the hydraulic pressure transducer that solves Wireless Data Transmission, can be by the replaceable battery of configuration with the battery case of firm pressure casing, perhaps use the radio frequency reception antenna with electric capacity, when receiving the radiofrequency signal of being launched by Displaying Meter, can give simultaneously capacitor charging, supply with the sensor electricity consumption.
In the above-described embodiments, oil pipe can be selected three layers of winding steel wire flexible pipe that German SPIRSTAR extreme pressure hose, Hebei Sino-U.S. specific rubber company limited produce, Singapore AN-FLEX extreme pressure hose etc.
Fig. 6 is the functional block diagram schematic diagram of Portable automobile balance of the present invention.As shown in Figure 5, this truck scale comprises: Portable weighing platform 601, the CPU605 that the output electrical signals of described weighing unit 601 is carried out successively the filtering circuit 602 of digital filtering, the linear amplifying circuit 603 that amplifies, analog-to-digital A/D converter 604, the calculating of loading weight.This truck scale can also comprise display unit 606, presents weighing data by the wireless mode reception and to the operator.
Among the present invention, the Portable weighing platform comprises: based on pressure sensing mat, pressure transducer and the equal pressing plate of hydraulic pressure variation, its size depends on the contact area on loads and ground fully, when weighing, as long as can realize weighing at loads and one of ground touching position placement, and do not need truck scale of the prior art or axle load meter to need like that the weighing platform of large tracts of land, large volume to carry loads, thereby overcome that the weight of equipment of the prior art own is large, volume is large, assembly cost is higher, without portable.
In addition, because weighing unit of the present invention is easy to carry, weighing operation easily operates, can be by the owner of cargo or procurator's operation, namely, the owner of cargo or procurator oneself can finish in advance and weigh, and accomplishes to know very well in one's heart, if when needing in the prior art truck scale or axle load meter again to weigh, by the front and back comparing, can guarantee that data are accurate, avoid equipment operator special in the prior art to control and distort, improve the reliability of equipment.
Weighing unit of the present invention not only can be used for weighing of freight transportation vehicle, also can be widely used in the various application places that need weighting objects of every profession and trade.
Claims (11)
1. a Portable weighing platform is characterized in that, comprising:
The pressure-sensing pad is used for coming pressure data corresponding to sensing loading weight according to liquid deformation;
Pressure transducer is used for described pressure data is converted to corresponding electric signal;
Equal pressing plates is arranged on the upper and lower surface of pressure-sensing pad, is used for making the even sensing loading in described pressure-sensing unit pressure.
2. Portable weighing platform according to claim 1 is characterized in that, described pressure-sensing pad comprises: the oil pipe of stress deformation and injection described liquid wherein.
3. Portable weighing platform according to claim 2 is characterized in that, described oil pipe is built by rubber and fibrous material and formed.
4. Portable weighing platform according to claim 2 is characterized in that, described oil pipe is the individual layer setting, or the multilayer setting.
5. Portable weighing platform according to claim 4 is characterized in that, described oil pipe twist shape is arranged the setting of formation individual layer, or is the setting of circuitous shape arrangement formation multilayer.
6. Portable weighing platform according to claim 5 is characterized in that, the end sealing of described oil pipe, and an other end is inserted with described pressure transducer.
7. Portable weighing platform according to claim 1 is characterized in that, described liquid is hydraulic oil.
8. Portable weighing platform according to claim 1 is characterized in that, all is provided with anti-skid design on the pressing plate.
9. Portable weighing platform according to claim 1 is characterized in that, the equal pressing plate that is arranged on described pressure-sensing pad upper surface is convex.
10. Portable weighing platform according to claim 1 is characterized in that, described pressure transducer is the hydraulic pressure transducer of Wireless Data Transmission.
11. Portable automobile balance, it is characterized in that, comprise: the arbitrary described Portable weighing platform of at least one the claims 1-8, the CPU that the input electrical signal of described weighing unit is carried out successively the filtering circuit of digital filtering, the linear amplifying circuit that amplifies, analog-to-digital A/D converter, the calculating of loading weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210069713 CN103308129A (en) | 2012-03-16 | 2012-03-16 | Portable weighing platform and truck scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210069713 CN103308129A (en) | 2012-03-16 | 2012-03-16 | Portable weighing platform and truck scale |
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| Publication Number | Publication Date |
|---|---|
| CN103308129A true CN103308129A (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210069713 Pending CN103308129A (en) | 2012-03-16 | 2012-03-16 | Portable weighing platform and truck scale |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181096A (en) * | 2015-09-11 | 2015-12-23 | 王素新 | Liquid transfer-type weighing platform |
| CN106419063A (en) * | 2016-09-26 | 2017-02-22 | 广西壮族自治区农业科学院甘蔗研究所（中国农业科学院甘蔗研究中心） | Portable table for sugarcane weighing |
| CN106840327A (en) * | 2016-12-22 | 2017-06-13 | 深圳众思科技有限公司 | Weight acquisition methods and device |
-
2012
- 2012-03-16 CN CN 201210069713 patent/CN103308129A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181096A (en) * | 2015-09-11 | 2015-12-23 | 王素新 | Liquid transfer-type weighing platform |
| CN106419063A (en) * | 2016-09-26 | 2017-02-22 | 广西壮族自治区农业科学院甘蔗研究所（中国农业科学院甘蔗研究中心） | Portable table for sugarcane weighing |
| CN106419063B (en) * | 2016-09-26 | 2023-03-28 | 广西壮族自治区农业科学院甘蔗研究所（中国农业科学院甘蔗研究中心） | Portable table for sugarcane weighing |
| CN106840327A (en) * | 2016-12-22 | 2017-06-13 | 深圳众思科技有限公司 | Weight acquisition methods and device |
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Application publication date: 20130918 |