CN201817826U - High-accuracy metering loading machine - Google Patents
High-accuracy metering loading machine Download PDFInfo
- Publication number
- CN201817826U CN201817826U CN2010202046721U CN201020204672U CN201817826U CN 201817826 U CN201817826 U CN 201817826U CN 2010202046721 U CN2010202046721 U CN 2010202046721U CN 201020204672 U CN201020204672 U CN 201020204672U CN 201817826 U CN201817826 U CN 201817826U
- Authority
- CN
- China
- Prior art keywords
- loading machine
- loader
- big arm
- obliquity sensor
- obliquity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Component Parts Of Construction Machinery (AREA)
- Operation Control Of Excavators (AREA)
Abstract
The utility model relates to a high-accuracy metering loading machine capable of furthest improving the measuring accuracy of the loading machine, comprising a loading machine and an electronic scale, wherein two ends of a hydraulic cylinder in the loading machine are respectively provided with a pressure sensor, and data signals detected by the two pressure sensors are transmitted to a secondary instrument arranged on a machine body and are used for detecting the loading capacity of the loading machine; two included angle sensors are respectively arranged in the middle of a large arm and the machine body of the loading machine, and data signals detected by the two included angle sensors are transmitted to the secondary instrument and are used for detecting the lifting angle and the lifting speed of the large arm of the loading machine and the road slope; and the secondary instrument obtains accurate weighing data by processing the input data. The high-accuracy measurement loading machine has the advantages that 1. the difficulty of large measuring accuracy error in the operating process of the loading machine in the prior art is solved; and 2. the installation and the maintenance are extremely convenient, and the measuring accuracy of the electronic scale of the loading machine is greatly improved.
Description
Technical field
The utility model relates to a kind of high-precision metering loading machine that can improve the loader measuring accuracy to greatest extent, belongs to the loader electronic scale and makes the field.
Background technology
Publication number CN1749710A, title " loader electronic weighing system and with its method that useful load is measured ", this weighing system comprises sensor groups, the automatic measurement and control unit, signal processing circuit, computer and treatment system, power supply, described sensor groups is a lifting force measuring transducer group, the automatic measurement and control unit is a position of bucket measuring switch group, the output of this lifting force measuring transducer group and position of bucket measuring switch group links to each other with the input of signal processing circuit, the output of signal processing circuit links to each other with the embedded computer of band weighing software by A/D data conversion module and I/O mouth, the method of useful load being measured with said system is to measure the quality of scraper bowl content material by the lifting force of measuring loading shovel, comprise: the system boot self check, input for information about, zero setting, automatically weigh, accumulative total, zero clearing in the process, step such as repeat to weigh, this system and method for measurement science thereof, can obtain higher weighing accuracy under dynamic environment, system's operating maintenance is convenient.Its weak point: because the oil pressure of oil cylinder and weight weight are not the one-variable function relation, but it is relevant with jacking angle, road gradient, jacking speed, therefore the inclination angle that pavement behavior causes changes because background technology is not considered loader itself, when making at the jacking angle when big (＞70 °), the gradient that the road surface is 5 ° is enough to cause the error in dipping more than 4%, and the smart amount of metering is poor.
The utility model content
Purpose of design: avoid the not middle part in the background technology, design detection and processing that a kind of inclination angle that causes by the road pavement situation changes, can improve the high-precision metering loading machine of loader measuring accuracy to greatest extent.
Design scheme: in order to realize above-mentioned purpose of design.Two obliquity sensors are contained in design on big arm middle part and the loader car body respectively, are major technique technical characterictics of the present utility model.The purpose of doing like this is: because the precision that the inclination angle that road gradient causes changes metering has most important influence, to improving loader scale measuring accuracy decisive influence is arranged, therefore the application installs an obliquity sensor respectively on big arm end and loader car body, obliquity sensor detects gradient data with it, hoist angle-data and the rising or falling speed data of the big arm of loader transfer to the secondary meter that is positioned on the car body by data wire, secondary meter will receive the lifting angle of the big arm of loader, rising or falling speed and road gradient carry out data to be handled, can accurately obtain the accurate Weight Loaded of loader, specifically:
α is the angle between big arm of loader and plumb line among the figure, record with the obliquity sensor 5 that is contained on the big arm, β is the angle of oil cylinder and big arm, and available angular transducer records, and also the tilt angle gamma indirect calculation that can record by the obliquity sensor 6 that is contained on the car body obtains.
According to moment equilibrium condition: mgLsin α=FL1sin β (1)
Wherein L is big arm lengths, and L1 is a distance between oil cylinder fulcrum and the big arm, and F is the oil cylinder top lift.
Can get weight mg=FL1sin α/(L1sin β) (2) by (1)
By (2) as seen, weight of material is directly proportional with top lift, but factor of proportionality is relevant with α, β.
If loader is in level, then the fixing relation of α and β existence needs only loader machinery structure and determines, records α and gets final product unique definite β, vice versa.Therefore when not considering road gradient, measure one of α, β and determine that goods weight is feasible.
But, in fact the loader working environment is relatively more abominable usually, it is big probability event that there is the gradient on the road surface, if the inclination angle, road surface is γ, above-mentioned (1) equation is still set up, but change has taken place the corresponding relation of α and β, when β is constant, if corresponding α 1 during level, α will become α 1+ γ when then the inclination angle is γ, thereby equation (2) can be expressed as:
mg＝FL1sin(α1+γ)/(L1sinβ) (3)
Because to specific loader, α 1 and β have one-to-one relationship, can calculate accurate weight as long as therefore measure F and α, β, γ three's two.
In practice in the program in order to obtain good precision and anti-shake performance, we adopt and measure that one section continuous angular interval data obtains result more accurately in the lifting process.In data processor, also solved obliquity sensor and disturbed and the slower difficult problem of response speed than being easier to be given a shock.
Considered also that in practical programs loader different hoisting velocity when promoting weight causes the different liquids flow velocity that the influence and the oil temperature of measurement result are changed the influence that causes hydrodynamic performance (mainly being viscosity) to change.
Technical scheme: high-precision metering loading machine, it comprises loader and electronic scale, hydraulic jack two ends in the described loader are equipped with pressure sensor respectively, and the data-signal that its two pressure sensors detect transfers to the load capacity that the secondary meter that is positioned on the driver's cabin is used to detect loader; Two obliquity sensors are contained in respectively on big arm end and the loader car body, the data-signal that its two obliquity sensors detect transfers to lifting angle, rising or falling speed and the road gradient that is positioned at the secondary meter on the car body and is used to detect the big arm of loader, and secondary meter draws the data of weighing accurately by the processing to above-mentioned input data.
The utility model is compared with background technology, and the one, solved in the loader running that background technology exists because road gradient causes the difficult problem that the measuring accuracy error is big; The 2nd, adopt obliquity sensor not need transmission device, installation and maintenance are very convenient, improved the measuring accuracy of loader electronic scale greatly.
Description of drawings
Fig. 1 is the structural representation of high-precision metering loading machine.
Fig. 2 is a metering loading machine reduced force analysis chart.
The specific embodiment
Embodiment 1: with reference to attached Fig. 1 and 2.High-precision metering loading machine, it comprises loader and electronic scale, hydraulic jack 2 two ends in the described loader are equipped with pressure sensor 3 and pressure sensor 4 respectively, and signal output part and the signal input part of secondary meter 7 on being positioned at car body are connected and are used to detect the load-bearing weight of loader; Two obliquity sensors 5 and obliquity sensor 6 are contained in respectively on big arm 1 end and the loader car body, its signal output part and the signal input part of secondary meter 7 on being positioned at driver's cabin are connected and are used to detect lifting angle, rising or falling speed and the road gradient of the big arm of loader, and secondary meter 7 draws the data of weighing accurately by the processing to above-mentioned input data.
In conjunction with the accompanying drawings 1 and 2, the application's enforcement is further described.
α is the angle between big arm of loader and plumb line among the figure, record with the obliquity sensor 5 that is contained on the big arm, β is the angle of oil cylinder and big arm, and available angular transducer records, and also the tilt angle gamma indirect calculation that can record by the obliquity sensor 6 that is contained on the car body obtains.
According to moment equilibrium condition: mgLsin α=FL1sin β (1)
Wherein L is big arm lengths, and L1 is a distance between oil cylinder fulcrum and the big arm, and F is the oil cylinder top lift.
Can get weight mg=FL1sin α/(L1sin β) (2) by (1)
By (2) as seen, weight of material is directly proportional with top lift, but factor of proportionality is relevant with α, β.
If loader is in level, then the fixing relation of α and β existence needs only loader machinery structure and determines, records α and gets final product unique definite β, vice versa.Therefore when not considering road gradient, measure one of α, β and determine that goods weight is feasible.
In fact the loader working environment is relatively more abominable usually, it is big probability event that there is the gradient on the road surface, if the inclination angle, road surface is γ, above-mentioned (1) equation is still set up, but change has taken place in the corresponding relation of α and β, when β is constant, and corresponding α 1 during as if level, α will become α 1+ γ when then the inclination angle is γ, thereby equation (2) can be expressed as:
mg＝FL1sin(α1+γ)/(L1sinβ) (3)
Because to specific loader, α 1 and β have one-to-one relationship, can calculate accurate weight as long as therefore measure F and α, β, γ three's two.
In practice in the program in order to obtain good precision and anti-shake performance, we adopt and measure that one section continuous angular interval data obtains result more accurately in the lifting process.In data processor, also solved obliquity sensor and disturbed and the slower difficult problem of response speed than being easier to be given a shock.
Considered also that in practical programs loader different hoisting velocity when promoting weight causes the different liquids flow velocity that the influence and the oil temperature of measurement result are changed the influence that causes hydrodynamic performance (mainly being viscosity) to change.
Embodiment 2: on the basis of embodiment 1, in the described obliquity sensor 5 and 6 one of can change angular transducer into, also can obtain effect same, but the secondary meter operation program should be with reference to the corresponding adjustment of equation (3).
Embodiment 3: on the basis of embodiment 1, described obliquity sensor 5 and one of 6 can be installed on the jacking cylinder, and at this moment the secondary meter operation program should be with reference to the corresponding adjustment of equation (3).
What need understand is: though the foregoing description is to the mentality of designing of the present utility model detailed text description of contrasting; but these text descriptions; just the simple text of the utility model mentality of designing is described; rather than to the restriction of the utility model mentality of designing; any combination, increase or modification that does not exceed the utility model mentality of designing all falls in the protection domain of the present utility model.
Claims (4)
1. high-precision metering loading machine, it comprises loader and electronic scale, it is characterized in that: on hydraulic jack (2) two ends in the described loader pressure sensor (3) and pressure sensor (4) are housed respectively, the data-signal that its two pressure sensors (3) and pressure sensor (4) detect transfers to the load capacity that the secondary meter (7) that is positioned on the car body is used to detect loader; Two obliquity sensors (5) and obliquity sensor (6) are contained in respectively on big arm (1) end and the loader car body, the data-signal that its two obliquity sensors (5) and obliquity sensor (6) detect transfers to secondary meter (7) that is positioned on the car body and lifting angle, rising or falling speed and the road gradient that is used to detect the big arm of loader, and secondary meter (7) draws weighing data accurately by the processing to above-mentioned input data.
2. high-precision metering loading machine according to claim 1 is characterized in that: in described obliquity sensor (5) and the obliquity sensor (6) one of can change angular transducer into.
3. high-precision metering loading machine according to claim 1 is characterized in that: one of described obliquity sensor (5) and obliquity sensor (6) can be installed on the jacking cylinder.
4. high-precision metering loading machine according to claim 1 is characterized in that: the metering formula of described loader is: according to moment equilibrium condition: mgLsin α=FL1sin β (1)
Loader weighing weight mg=FL1sin α/(L1sin β) (2)
Wherein: L is big arm lengths, L1 is a distance between oil cylinder fulcrum and the big arm, F is the oil cylinder top lift, α is the angle between big arm of loader and plumb line, record with the obliquity sensor (5) that is contained on the big arm, β is the angle of oil cylinder and big arm, and available angular transducer records, and also the tilt angle gamma indirect calculation that can record by the obliquity sensor (6) that is contained on the car body obtains;
If the inclination angle, road surface is γ, above-mentioned (1) equation is still set up, but change has taken place in the corresponding relation of α and β, when β is constant, if corresponding α 1 during level, α will become α 1+ γ when then the inclination angle is γ, thereby equation (2) can be expressed as: mg=FL1sin (α 1+ γ)/(L1sin β) (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202046721U CN201817826U (en) | 2010-05-26 | 2010-05-26 | High-accuracy metering loading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202046721U CN201817826U (en) | 2010-05-26 | 2010-05-26 | High-accuracy metering loading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201817826U true CN201817826U (en) | 2011-05-04 |
Family
ID=43915789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202046721U Expired - Fee Related CN201817826U (en) | 2010-05-26 | 2010-05-26 | High-accuracy metering loading machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201817826U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2516632A (en) * | 2013-07-26 | 2015-02-04 | Jc Bamford Excavators Ltd | A method of weighing a load |
| CN110258681A (en) * | 2019-07-18 | 2019-09-20 | 四川德程建设有限公司 | A kind of loading machine being precisely weighed |
-
2010
- 2010-05-26 CN CN2010202046721U patent/CN201817826U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2516632A (en) * | 2013-07-26 | 2015-02-04 | Jc Bamford Excavators Ltd | A method of weighing a load |
| US9630822B2 (en) | 2013-07-26 | 2017-04-25 | J. C. Bamford Excavators Limited | Method of weighing a load lifted by a lifting arm of a machine |
| GB2516632B (en) * | 2013-07-26 | 2017-11-29 | Jc Bamford Excavators Ltd | A method of weighing a load |
| CN110258681A (en) * | 2019-07-18 | 2019-09-20 | 四川德程建设有限公司 | A kind of loading machine being precisely weighed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101832810B (en) | High-precision metering loading machine | |
| CN101571442B (en) | Calibration method for six-dimension force sensor calibration device with medium measurement range | |
| CN104949746B (en) | A kind of vehicular non-contact vehicle load mass dynamic monitor and detection method | |
| CN101571441B (en) | Six-dimension force sensor calibration device with medium measurement range | |
| CN203269481U (en) | Load weighing and load gravity center measuring device for inserting type forklift | |
| CN200982885Y (en) | Automatic weighting device of loader | |
| CN102392664B (en) | Hydraulic support with inclination sensors and height measurement method thereof | |
| CN102735318A (en) | Measurement system for a material transfer vehicle | |
| CN104034469B (en) | The assay method of crane wheel load | |
| CN102778287A (en) | System and method for controlling tiltable weighing electronic scale | |
| CN101672689A (en) | Weighing system and weighing method thereof | |
| CN202782852U (en) | Vehicle load self measuring device and car | |
| CN101881626A (en) | Self-correcting horizontal loading device | |
| CN201817826U (en) | High-accuracy metering loading machine | |
| CN2856134Y (en) | Monkey hammer type benkelman beams deflectometer | |
| CN201892566U (en) | Hopper scale calibration device | |
| CN108760108A (en) | Crane wheel pressure detection method based on stress survey technology | |
| CN203148627U (en) | Vehicle centroid height measuring device | |
| CN204043764U (en) | Shovel loader intelligent weighing system | |
| CN204831747U (en) | Low -speed high reynola number wind tunnel half model measured force balance | |
| CN114076632A (en) | Vehicle load measuring system and method | |
| CN100582685C (en) | Electronic weighing scale of loader | |
| CN203116829U (en) | Dynamic vehicle weighing device | |
| CN103438965B (en) | Hinge type storage tank Weighing device | |
| CN100582686C (en) | Electronic weighing scale of loader |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20120526 |