CN1056692C - Method and apparatus for weighing automotive axles separately - Google Patents
Method and apparatus for weighing automotive axles separately Download PDFInfo
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- CN1056692C CN1056692C CN 94114844 CN94114844A CN1056692C CN 1056692 C CN1056692 C CN 1056692C CN 94114844 CN94114844 CN 94114844 CN 94114844 A CN94114844 A CN 94114844A CN 1056692 C CN1056692 C CN 1056692C
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- weighing
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- automobile
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Abstract
The present invention relates to a method and a device for weighing automobiles in a split axle way, which belongs to the field of gravity measurement. The present invention uses the method of weighing single axle load one by one and then accumulating the axle loads to obtain the total load to reduce and thin a weighting table so as to save a large quantity of metal and occupation area. The volume of the weighing device designed for implementing the weighting method is far smaller than that of the traditional integral weighbridge. At least two sensors are arranged in the weighing table, and are inversely connected with a bearing table top. The device is also provided with a secondary meter and a display and printing mechanism which are controlled by a microcomputer. The device can be used for measuring the load of various existing motor vehicles, and the precision comes up to the national third-grade weighting standard. The present invention can be used as a motor truck scale and an overload detection device.
Description
The invention belongs to the gravimetry field.
Traditional automobile Weighing method is to connect car band goods once to weigh on on-ground weigher, based on this Weighing method, present known automobile weighing device adopts monolithic construction mostly, not only bulky, from great, floor area is big, and complex structure, cost height, transportation difficulty.
U.S. Pat 3966002 discloses a kind of portable weighing device, under several wheels of tested automobile, each places a weighing unit, and each weighing unit interconnects, and automobile reaches on each weighing unit, once measure complete vehicle weight, this method operation inconvenience, time-consuming very long, and need several weighing units, measuring accuracy is low, is only applicable to overload and detects.
Application for a patent for invention " portable electronic weighter for truck " (CN1055974) discloses a kind of each weight of measuring respectively and has added up and ask the device of automobile gross weight, its load-bearing load receptacle is a closed oil tank, fuel tank is equipped with metal-coating outward, utilizes load-bearing rear fuel tank end face distortion causing fuel tank inner fluid static pressure to change through the pressure transducer output signal.This kind device adopts fuel tank as pressure transmission part, complex structure not only, and cost is high, and can cause the fluctuation of metal strain and oil viscosity because of the seasonal variations of climate temperature, and measuring accuracy is had certain influence.
Utility application " ground type axle metering dynamic electronic rail balance " (CN21134764) discloses a kind of track scale that is used to measure train load, also be to adopt the split axle check weighing to add up to ask the method for gross weight, its structure adopts rail mounted cavity scale face, cavity is built-in with the sensor of 4 symmetrical distributions, and socket the weighing platform both ends by two arm-ties, big frame of whole formation, floor area is bigger, and its orbit-shaped structure also is unsuitable for automobile and weighs.
The objective of the invention is to design a kind of automobile that is used for and weigh and adopt split axle to weigh and add up, ask simple in structure, the scale body is little, floor area is little, cost is low, the easy for installation weighing automotive axles separately device of gross weight.
The technical scheme of taking is for achieving the above object: a kind of automobile that is used for is weighed, adopt and divide shaft weighing method, each Dan Chuizai of survey adds up and obtains the heavy weighing automotive axles separately device of car load earlier, comprise weighing unit, sensor and micro-processor controlled secondary instrument, it is characterized in that: the bearing platform upper surface of described weighing unit is equal with ground, its area is less than the car load floor area, be equipped with at least 2 sensors that distribute symmetrically and evenly in weighing unit inside, each sensor links with the mode and the bearing platform lower surface of upside-down mounting, and device contacts with steel plate on the ground at the pressure head on the sensor.
The table top of bearing platform can be to make with metal.
The table top of bearing platform can be the member that metal frame adds cement.
Advantage of the present invention is: because the method that adopts split axle to weigh, bearing platform only need support the automobile single shaft, required area greatly reduces, its weight can alleviate 90%, save steel 90%, thereby cost is reduced, floor area is dwindled, easy for installation, and the multiaxis superduty carrier of can weighing, the weighing limit that has surmounted traditional on-ground weigher, and because the advantage of structure and employing microcomputer, devices such as secondary instrument, its measuring accuracy reach national III level scale standard and adopt the present invention to adopt the structure that sensor is directly installed on the bearing platform below, the two contact area is strengthened, bending strength improves, and makes the weighing platform attenuate of can trying one's best, and reaches the purpose of design of lightness and has reduced check weighing intermediate transfer link---fuel tank and outer cover thereof as patented claim CN1055979.The present invention not only reaches lightness more because designs simplification is reasonable in design by comparison, precision is higher, the beyond thought technique effect that cost is lower, and also expanded application is in the detection of dynamic of highway, created very high economic return, annual value of production has exceeded ten million yuan.
Accompanying drawing 1 is traditional on-ground weigher figure that weighs;
Accompanying drawing 2a is split axle measurement model t of the present invention
1Constantly survey the front axle synoptic diagram;
Accompanying drawing 2b is split axle measurement model t of the present invention
2Constantly survey the rear axle synoptic diagram;
Accompanying drawing 2c is a split axle measurement model car load metering isoboles of the present invention;
Accompanying drawing 3a is that the present invention surveys the front axle force diagram;
Accompanying drawing 3b is that the present invention surveys the rear axle force diagram;
Accompanying drawing 4 is weighing unit semisectional views of the present invention;
Accompanying drawing 5 is measuring system calcspars of the present invention.
Further specify embodiment in conjunction with the accompanying drawings:
As shown in Figure 1, traditional required measurement table top of automobile Weighing method is greater than the automobile floor area.
Be illustrated in figure 2 as automotive axles separately measurement model of the present invention, as long as required measurement bearing platform can carry single shaft, Fig. 2 a represents t
1It is heavy constantly to measure front axle, and Fig. 2 b represents t
2It is heavy constantly to measure rear axle, and Fig. 2 c represents, works as t
2-t
1→ 0, antero posterior axis is surveyed the result and is superposed to the heavy equivalence metering figure of car load.The measuring sequence of each can be at random.
Force analysis during the automobile check weighing as shown in Figure 3, the plane is equal with ground 1 on the bearing platform 7, and looking whole automobile 3 is the constant rigid body of a center of gravity, and its stressing conditions can be reduced to plane parallel power system on smooth road surface, and Fig. 3 a is illustrated in t
1Constantly, automobile 3 front axles reach on the weighing unit 2, and its stressing conditions is: by centre of gravity of vehicle one downward gravity P is arranged, at the antero posterior axis place, reaction of supports F is vertically upward arranged
1, F
2, be one of static equilibrium condition according to plane parallel power:
P＝F
1+F
2
Simultaneously, according to the mechanics theorem of " acting force and reacting force equal and opposite in direction, direction is opposite, acts on the same straight line ", reaction of supports F
1And F
2Absolute value equal to act on the gravity P at antero posterior axis place
1And P
2, and P
1With P
2Can be considered two component of gravity P decomposition at the antero posterior axis place.That is:
F
1＝P
1
F
2＝P
2
P
1+P
2＝F
1+F
2＝P
General custom claims P
1, P
2For axle is heavy, title P is a gross weight.The above-mentioned relation formula has proved the basis of method for measuring weight of the present invention.
Fig. 3 b represents that automobile hind axle reaches the stressing conditions on the weighing unit, and the relation of each power is identical with Fig. 3 a.
At t shown in Fig. 3 a
1Constantly record the heavy P of front axle
1,
At t shown in Fig. 3 b
2Constantly record the heavy P of rear axle
2,
Work as t
2-t
1→ 0, twice measurement result addition draws automobile gross weight P, deducts the weight of automobile self, just draws the dead weight capacity of automobile.
For the automobile that has more than the diaxon, identical with aforementioned calculation according to the static equilibrium condition of plane parallel power system, the automobile gross weight equals the heavy sum of each single shaft, that is:
P＝∑P
1→n
Apparatus structure of the present invention as shown in Figure 4,6 upside-down mountings of sensor 5 usefulness bolts are below load-bearing table top 7, this sensor 5 is G * B beam type sensor (Ministry of Aerospace 701, all there are manufacturing in 702 institutes and Beijing Zhong Shan Institute for New Technologies), connected mode of the present invention strengthens the contact area of sensor 5 and bearing platform 7, bending strength improves, make the weighing platform attenuate of can trying one's best, reach the made of light design requirement, weighing unit inside can be symmetrical, at least 2 sensors are set equably, make it stressed evenly, the pressure head 4 that links with sensor contacts with the steel plate 8 on being installed in ground 1.
Bearing platform 7 can be used the metal manufacturing, also can add the structure of cement with metal frame.
Fig. 5 represents measuring system calcspar of the present invention, gravity causes the microdeformation of sensor elastomer when weighing, and convert gravitational cue to electric signal, again in turn through amplifying circuit, filtering circuit, micro-processor controlled secondary instrument is imported in the A/D conversion, and links through IO interface and display, printer and the keyboard of microcomputer, carload lot may be displayed on the display screen of secondary instrument, also printable in case of necessity output.
Measuring method provided by the present invention and device can weighing be limited to the lorry (tank truck is not within this weighs scope) that loads solid-state goods, can survey existing various motor vehicles dead weight capacity, measuring accuracy reaches national III level scale standard (measuring error is no more than 0.1%), can be used as truck scale and the use of overload checkout equipment.
Claims (3)
1, a kind of automobile that is used for is weighed, adopt and divide shaft weighing method, each substance of survey adds up and obtains the heavy weighing automotive axles separately device of car load earlier, comprise weighing unit, sensor and micro-processor controlled secondary instrument, it is characterized in that: the bearing platform upper surface of described weighing unit is equal with ground, its area is less than the car load floor area, be equipped with at least 2 sensors that distribute symmetrically and evenly in weighing unit inside, each sensor links with the mode and the bearing platform lower surface of upside-down mounting, and device contacts with steel plate on the ground at the pressure head on the sensor.
2, according to the described device of claim 1, it is characterized in that: the table top of affiliated bearing platform is to make with metal.
3, according to the described device of claim 1, it is characterized in that: the table top of affiliated bearing platform is the member that metal frame adds cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94114844 CN1056692C (en) | 1994-08-12 | 1994-08-12 | Method and apparatus for weighing automotive axles separately |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94114844 CN1056692C (en) | 1994-08-12 | 1994-08-12 | Method and apparatus for weighing automotive axles separately |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1116706A CN1116706A (en) | 1996-02-14 |
| CN1056692C true CN1056692C (en) | 2000-09-20 |
Family
ID=5037218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94114844 Expired - Fee Related CN1056692C (en) | 1994-08-12 | 1994-08-12 | Method and apparatus for weighing automotive axles separately |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1056692C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434881C (en) * | 2006-04-24 | 2008-11-19 | 江承学 | Front dynamically-measuring protecting balance of automobile |
| CN102155973A (en) * | 2011-02-18 | 2011-08-17 | 山东省计量科学研究院 | Field static vehicle weighing detecting method of dynamic road vehicle automatic weighing instrument |
| CN109990881A (en) * | 2017-12-29 | 2019-07-09 | 巴斯夫聚氨酯特种产品（中国）有限公司 | Sunk type platform balance |
-
1994
- 1994-08-12 CN CN 94114844 patent/CN1056692C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1116706A (en) | 1996-02-14 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING CITY ZHONGSHAN NEW TECHNOLOGY EQUIPMENT IN Free format text: FORMER OWNER: ZHAO MENGJIE Effective date: 20090814 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090814 Address after: Beijing City, Xicheng District Xizhimen Nanxiaojie Guoying No. 1 12 floor Patentee after: Beijing Zhongshan Institute of New Technology and Equipment Address before: Beijing city Xicheng District Gokokuji Street No. 74 Patentee before: Zhao Mengjie |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20000920 Termination date: 20130812 |