CN201569479U - System for measuring mass of mobile heavy objects - Google Patents
System for measuring mass of mobile heavy objects Download PDFInfo
- Publication number
- CN201569479U CN201569479U CN 200920297590 CN200920297590U CN201569479U CN 201569479 U CN201569479 U CN 201569479U CN 200920297590 CN200920297590 CN 200920297590 CN 200920297590 U CN200920297590 U CN 200920297590U CN 201569479 U CN201569479 U CN 201569479U
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- Prior art keywords
- pressure transducer
- quality
- pressure
- standard
- microprocessor
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Abstract
A system for measuring mass of mobile heavy objects relates to a mass measuring system for measuring the material mass in a hopper of a digger. The utility model comprises a first pressure sensor, and a hydraulic system of the digger, wherein the first pressure sensor is located on a hydraulic position of the hydraulic system of the digger, and is characterized in that the utility model also comprises a second pressure sensor, a standard mass object and a microprocessor, wherein the second pressure sensor is arranged on a bucket of the digger or the surface of a connecting rod connected with the digger, the upper surface of the second pressure sensor is provided with the standard mass objects, and the first pressure sensor and the second pressure sensor are connected with the microprocessor. The utility model has the advantages that the system adopts the pressure sensors and the standard mass object which are arranged on proper positions of an object to be measured so as to replace an acceleration sensor, thereby greatly reducing the cost of the measuring system for material mass in the process of measuring movement or vibration.
Description
Technical field
The utility model belongs to the field of measuring the moving object quality, particularly relates to what quality measurement system of quality of material in the hopper of measuring excavator.
Background technology
Measure now that quality of material is to gang up with the hydraulic system of pressure transducer and excavator in the hopper of excavator, go to experience hydraulic coupling with pressure transducer, with the hydraulic coupling signal with microprocessor by quality of material in the calculated with mathematical model discharge bucket of having set up.But because hopper is in continuous motion, promptly the acceleration a of hopper according to the principle of F=ma, can measure quality of material all the time changing for hydraulic coupling F.Just only rely on a pressure transducer, the quality of material that is determined in motion or the vibration has than mistake.
Measure the error problem of quality of material at hydraulic coupling F for the acceleration a that overcomes hopper, at present, be determined at the quality of material adding acceleration a key element method in motion or the vibration, be exactly that pressure transducer is in conjunction with acceleration transducer, the acceleration a that the pressure F that pressure transducer is obtained obtains in conjunction with acceleration transducer, the signal of two key element F, a is all sent into microprocessor, with quality of material in the calculated with mathematical model discharge bucket of having set up.But acceleration transducer has price comparison expensive (price is about 5000 yuan at present).In addition, the working-yard is owing to bump unavoidably, and acceleration transducer is fragile, and the acceleration transducer price comparison is expensive and easily stolen.
Summary of the invention
The purpose of this utility model provides uses the very alternative somewhat expensive acceleration transducer of price of pressure transducer of low price, cooperate with two pressure transducers, add the quality measurement system that microprocessor is determined at quality of material in motion or the vibration, the quality measurement system that is determined at quality of material in motion or the vibration of low price just is provided.
Design of the present utility model is: two pressure transducers can obtain two pressure data F1, F2, on a pressure transducer, set the standard weight (function that is equivalent to weights) that quality is m2, again because the material of two pressure transducer correspondences and the standard weight acceleration in motion or vibration is equal, be a1=a2, so the quality of material m1=m2 * F1 ÷ F2 in determined motion or the vibration.Just as long as can realize that in configuration aspects quality is that the standard weight of m2 is exerted pressure in motion or vibration to the pressure transducer that contacted, the data of setting m2 and F1, the F2 pressure data input microprocessor experienced, just can calculate the exact mass of the material in motion or the vibration with certain mathematical model.As seen, for reaching the exact mass of measuring the material in motion or the vibration, its invention main points are that the standard weight that a pressure transducer that increases newly and quality are m2 is located at the position that can experience the material acceleration in acquisition motion or the vibration, and measured point, the pressure transducer that increases newly and quality are that the standard weight of m2 should have the certain structure relation, just can reach goal of the invention.It is the annexation of each parts in the structural relation of standard weight of m2 and the system that measured point, the pressure transducer that increases newly and quality just are provided below.
Structure of the present utility model and annexation are:
A kind of system that measures motion weight quality, comprise first pressure transducer 1, be positioned at the hydraulic pressure position of the hydraulic system 2 of excavator with hydraulic system 2, the first pressure transducers 1 of excavator, it is characterized in that: also comprise one second pressure side's sensor 3, standard quality object 4 and microprocessor 5; Connecting rod 6 upper surfaces of excavator bucket or connection bucket are provided with second pressure transducer 3, are provided with standard quality object 4 at second pressure transducer, 3 upper surfaces; First pressure transducer 1 links to each other with microprocessor 5 with second pressure transducer 3.Wherein measured point, the pressure transducer that increases newly and quality are that the structural relation of the standard weight of m2 is: be made as m2 and excavator bucket or be connected between connecting rod 6 upper surfaces of bucket at standard quality object 4 and accompany second pressure transducer 3, when connecting rod 6 upper surfaces of excavator bucket or connection bucket are in motion or vibrational state, standard quality object 4 is movement therewith or vibration synchronously also, and motion or vibration force that second pressure transducer 3 just can obtain standard quality object 4 are made as F2.The position of the setting of first pressure transducer 1 and prior art that the position is set is identical, promptly be located at the hydraulic pressure position of the hydraulic system 2 that is positioned at excavator and the pressure that can obtain hydraulic system 2 is made as F1.The pressure F1 of first pressure transducer, 1 acquisition, pressure F2 input microprocessor 5 with 3 acquisitions of second pressure transducer, microprocessor 5 just can calculate the quality of material m1 in determined motion or the vibration with quality m2 and F1 and three parameters of F2 mathematical model of having set of standard weight.
Be the pollution to standard quality object 4 such as the material that prevents the practice of construction scene, water, cover the pressure that makes it to change 4 pairs second pressure transducers 3 of standard quality object on the standard quality object 4 if any earth, can on second pressure transducer 3 and standard quality object 4, be covered with a protective cover 7.Protective cover 7 can not contact with standard quality object 4.
If the signal and the microprocessor 5 of first pressure transducer 1 and second pressure transducer 3 do not match, can be in series with A/D converter 8 being in series with between first pressure transducer 1 and the microprocessor 5 between A/D converter 8, the second pressure transducers 3 and the microprocessor 5.But have function switching signal in the microprocessor 5, or signal is complementary, then can directly be connected with microprocessor 5 by sensor.
Advantage of the present utility model:
Technical problem to be solved in the utility model is to replace acceleration transducer with pressure transducer, the technical scheme of dealing with problems is certain position that the standard object (being called for short the standard quality object) with known quality is located at the measured object of motion or vibration, the pressure that the measurement standard mass objects produces in motion or vibration, also measure the pressure that concrete measured object produces simultaneously, just can calculate the measured object quality that contains the acceleration factor.The utility model theoretically, when measuring the measured object quality, no matter in motion or vibration, movement velocity is much or not at the uniform velocity, whether the degree of vibration severe, and measurement result all not have to influence for material.
The utility model adds the standard mass objects with pressure transducer, and both are located at the appropriate location of measured object, just can replace acceleration transducer to measure the measured object quality that contains the acceleration factor.And pressure transducer adds the price of standard mass objects less than 100 yuan, but the acceleration transducer price is about 5000 yuan, so significantly reduced the cost of measuring the mensuration system of quality of material in motion or the vibration.
Description of drawings
Fig. 1 is the utility model structure and the annexation synoptic diagram that first pressure transducer and standard quality object are located at excavator hopper top;
Fig. 2 is the utility model structure and the annexation synoptic diagram that first pressure transducer and standard quality object are located at the connecting rod top of excavator hopper;
1 is first pressure transducer, the 2nd among the figure, and the hydraulic system of excavator, 3 is second pressure transducers, the 4th, standard quality object, the 5th, microprocessor, the 6th, connecting rod, the 7th, protective cover, the 8th, A/D converter.
Embodiment
Usefulness first pressure transducer 1 of material actual mass is experienced by the system that embodiment 1, second pressure transducer and standard quality object are located at the mensuration motion weight quality of excavator hopper top, first pressure transducer 1 is located in the hydraulic system 2 of excavator, and method to set up is same as the method to set up of prior art.
With experiencing pressure limit is that the pressure resistance type strain type pressure transducer of 0-100 gram is that the object of 80 gram masses is as standard quality object 4 as second pressure transducer 3, with standard quality.Fix second pressure transducer 3 at excavator bucket 6 upper surfaces, in second pressure transducer, 3 upper surface fixed standard mass objects 4, second pressure transducer 3 will contact with standard quality object 4, during the mass objects 4 that sets up standard, the mode of to make second pressure transducer 3 experience standard quality object 4 pressure F2 is provided with.
First pressure transducer 1 links to each other with microprocessor 5 with second pressure transducer 3.The output terminal of microprocessor 5 is connected to display, makes the result of calculation of microprocessor 5 want and can be observed and read by the people.
Embodiment 2, second pressure transducer and standard quality object are located at the system of mensuration motion weight quality of the connecting rod top of excavator hopper
Usefulness first pressure transducer 1, the first pressure transducer 1 of experiencing the material actual mass is located in the hydraulic system 2 of excavator, and method to set up is same as the method to set up of prior art.
With experiencing pressure limit is that the pressure resistance type strain type pressure transducer that 0-200 restrains is that 150 objects that restrain are as standard quality object 4 as second pressure transducer 3, with standard quality.Connecting rod 6 upper surfaces at excavator-type shovel clamshell excavator are fixed second pressure transducer 3, in second pressure transducer, 3 upper surface fixed standard mass objects 4, second pressure transducer 3 will contact with standard quality object 4, during the mass objects 4 that sets up standard, the mode of to make second pressure transducer 3 experience standard quality object 4 pressure F2 is provided with.
First pressure transducer 1 links to each other with microprocessor 5 with second pressure transducer 3.The output terminal of microprocessor 5 is connected to display, makes the result of calculation of microprocessor 5 want and can be observed and read by the people.
Be the pollution to standard quality object 4 such as the material that prevents the practice of construction scene, water, cover the pressure that makes it to change 4 pairs second pressure transducers 3 of standard quality object on the standard quality object 4 if any earth, should on second pressure transducer 3 and standard quality object 4, be covered with a protective cover 7.Protective cover 7 can not contact with standard quality object 4, and any situation protective cover 7 all can not influence the pressure of 4 pairs second pressure transducers 3 of standard quality object.
Also be in series with A/D converter 8 being in series with between first pressure transducer 1 and the microprocessor 5 between A/D converter 8, the second pressure transducers 3 and the microprocessor 5.A/D converter 8 is the simulated data of pressure transducer to be converted to microprocessor 5 can look not and the device of the digital signal of handling.
Claims (3)
1. system that measures motion weight quality, comprise first pressure transducer (1), hydraulic system (2) with excavator, first pressure transducer (1) is positioned at the hydraulic pressure position of the hydraulic system (2) of excavator, it is characterized in that: also comprise one second pressure transducer (3), standard quality object (4) and microprocessor (5); Connecting rod (6) upper surface of excavator bucket or connection bucket is provided with second pressure transducer (3), is provided with standard quality object (4) at second pressure transducer (3) upper surface; First pressure transducer (1) links to each other with microprocessor (5) with second pressure transducer (3).
2. a kind of system that measures motion weight quality according to claim 1 is characterized in that: be covered with a protective cover (7) on second pressure transducer (3) and standard quality object (4).
3. a kind of system that measures motion weight quality according to claim 1, it is characterized in that: first pressure transducer (1 and microprocessor (5) between be in series with A/D converter (8), be in series with A/D converter (8) between second pressure transducer (3) and the microprocessor (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920297590 CN201569479U (en) | 2009-12-25 | 2009-12-25 | System for measuring mass of mobile heavy objects |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920297590 CN201569479U (en) | 2009-12-25 | 2009-12-25 | System for measuring mass of mobile heavy objects |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201569479U true CN201569479U (en) | 2010-09-01 |
Family
ID=42661772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920297590 Expired - Fee Related CN201569479U (en) | 2009-12-25 | 2009-12-25 | System for measuring mass of mobile heavy objects |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201569479U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914351A (en) * | 2012-10-11 | 2013-02-06 | 中钢集团衡阳重机有限公司 | Weighting method for electric excavator |
| CN103270837A (en) * | 2013-06-05 | 2013-09-04 | 湖南农业大学 | Variable seeding control system and method based on pressure sensor |
-
2009
- 2009-12-25 CN CN 200920297590 patent/CN201569479U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102914351A (en) * | 2012-10-11 | 2013-02-06 | 中钢集团衡阳重机有限公司 | Weighting method for electric excavator |
| CN103270837A (en) * | 2013-06-05 | 2013-09-04 | 湖南农业大学 | Variable seeding control system and method based on pressure sensor |
| CN103270837B (en) * | 2013-06-05 | 2015-07-15 | 湖南农业大学 | Variable seeding control system and method based on pressure sensor |
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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: 20100901 Termination date: 20101225 |