CN110470372A - The dynamic calibration apparatus of car load - Google Patents
The dynamic calibration apparatus of car load Download PDFInfo
- Publication number
- CN110470372A CN110470372A CN201910904226.7A CN201910904226A CN110470372A CN 110470372 A CN110470372 A CN 110470372A CN 201910904226 A CN201910904226 A CN 201910904226A CN 110470372 A CN110470372 A CN 110470372A
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- CN
- China
- Prior art keywords
- stress crossbeam
- crossbeam
- stress
- car load
- dynamic calibration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/01—Testing or calibrating of weighing apparatus
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention relates to a kind of dynamic calibration apparatus of car load, it is characterized in that: including reinforcing bearing assembly, load cell and force application apparatus；A corresponding load cell below each tire of vehicle to be calibrated, is mounted on displacement sensor at each tire of vehicle to be calibrated；The reinforcing bearing assembly includes support housing, and the stress crossbeam that can be moved up and down is installed on support housing, and the both ends of stress crossbeam are connected to the frame beam of railway carriage two sides, and the center rotating of the stress crossbeam is mounted on support housing；Force application apparatus is installed on the support housing, the output end of force application apparatus connects stress crossbeam, and Xiang Shouli crossbeam applies active force；One end installation period of the stress crossbeam sexually revises the pulsation forcer of stress crossbeam center of gravity.The present invention can exclude the frictional influence of spring, be demarcated using the active force of periodically pulsing, and the relation curve of complete, accurate vehicle load and camber of spring is obtained.
Description
Technical field
The present invention relates to a kind of dynamic calibration apparatus of car load, especially a kind of to be suitable for tank truck, container car
Car load caliberating device.
Background technique
Currently, both at home and abroad in automobile weighing field mostly using various stress, strain, displacement, angular transducer, into
The related parameter measurement of row.
A kind of technical solution in the prior art is to move pit scale structure on car to, and cargo carries out scale as loadage
Weight.This kind of technical solution is onboard difficult to meet wanting for this respect the problem is that pit scale has strict demand to levelness
It asks；Especially require vehicle for static state, but car needs to pay close attention to loss of goods during the motion, in this case the technical side
Case is just unable to satisfy.Especially the key member of pit scale is prone to wear under current intelligence, leads to accuracy decline, difficult very much.
In recent years with the progress of sensor technology, many sensor accuracy class get a promotion, and can reflect that load causes to join
Several variations.The spring force deformation for measuring each wheel of vehicle, the load capacity of vehicle is obtained by calculating, this is just needed first really
Determine relationship of the vehicle load with camber of spring.Traditional measurement loading force and the relationship of deformation always slowly reinforce by the way of,
The loading force of application and the measurement of camber of spring are all static.Using the relationship of load and deformation that this calibration mode obtains
For when measuring vehicle load, individually when load and individually unloading, the curve of loading force and deformation force not to be overlapped completely, is such as schemed
, can only be as reference shown in 1, error is 15% or more sometimes.This is because existing between spring and vehicle frame when Slow loading, unloading
Static friction, and confficient of static friction is not definite value, friction is objective reality, can not be avoided.
Influence of the static friction in the calibration process of car load and camber of spring relationship is how solved, vehicle is being carried out
The accuracy raising of load measurement is of great importance.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies in the prior art, a kind of dynamic calibration dress of car load is provided
It sets, excludes the frictional influence of spring, demarcated using the active force of periodically pulsing, complete, accurate vehicle can be obtained
The relation curve of load and camber of spring.
According to technical solution provided by the invention, the dynamic calibration apparatus of the car load, it is characterized in that: including reinforcing
Bearing assembly, load cell and force application apparatus；A corresponding load cell below each tire of vehicle to be calibrated, for examining
Survey the bearing capacity of each tire；It is mounted on displacement sensor at each tire of the vehicle to be calibrated, it is every for detecting
The deflection of flat spring at a tire；The reinforcing bearing assembly includes support housing, and installation can be upper and lower on support housing
Mobile stress crossbeam, the both ends of stress crossbeam are connected to the frame beam of railway carriage two sides, the center rotating of the stress crossbeam
It is mounted on support housing, realizes swinging for stress crossbeam；Force application apparatus, force application apparatus are installed on the support housing
Output end connect stress crossbeam, with to stress crossbeam apply active force；One end installation period of the stress crossbeam sexually revises
The pulsation forcer of stress crossbeam center of gravity.
Further, the pulsation forcer uses the eccentric wheel structure of uniform rotation.
Further, the eccentric wheel structure is driven by motor.
Further, the both ends of the stress crossbeam pass through connecting rod respectively and connect with the frame beam of railway carriage two sides admittedly
It is fixed.
Further, the connecting rod at stress crossbeam both ends is fixed by clamping device and frame beam.
Further, the force application apparatus uses hydraulic jack.
Further, force measuring machine is set on the force application apparatus.
The invention has the following advantages that
(1) it is static defect that the caliberating device that uses of the present invention, which avoids conventional measurement and measures one's own ability and deform all, using dynamically, enclose
Make cyclically-varying around some load value, the deformation of measurement is also dynamically to make cyclically-varying around some deformation values, is surveyed in this way
The vehicle load measured-deformation relationship standard curve can exclude the frictional influence of spring, and precision is more acurrate.
(2) dynamic calibration apparatus of the present invention is suitable for various vehicles, is particularly suitable for tank truck, container car
Car load and camber of spring relationship dynamic calibration.
Detailed description of the invention
Fig. 1 is individually to load in the prior art and curve synoptic diagram when individually unloading.
Fig. 2 is the structural schematic diagram of the dynamic calibration apparatus of car load of the present invention.
Fig. 3 is the structural schematic diagram of the reinforcing bearing assembly.
Fig. 4 is the sectional view of the stress crossbeam.
Description of symbols: 1- railway carriage, 2- support housing, 3- stress crossbeam, 4- load cell, 5- clamping device, 6-
Frame beam, 7- flat spring, 8- pulsation forcer, 9- tire, 10- force application apparatus, 11- calibrating platform, 12- reinforce bearing group
Part, 13- connecting rod.
Specific embodiment
Below with reference to specific attached drawing, the invention will be further described.
As shown in Fig. 2, the structural schematic diagram of the dynamic calibration apparatus for car load of the present invention, the caliberating device
Including calibrating platform 11, reinforcing bearing assembly 12, load cell 4, clamping device 5, pulsation forcer 8 and force application apparatus
10；Vehicle to be calibrated is located on calibrating platform 11 when being demarcated, and dynamometry is arranged on the vehicle runway rack of calibrating platform 11 and passes
Sensor 4, a corresponding load cell 4 below each tire 9 of vehicle to be calibrated, for detecting the bearing capacity of each tire；
It is mounted on displacement sensor at each tire 9 of the vehicle to be calibrated, for detecting the deformation of flat spring 7 at each wheel
Amount；As shown in figure 3, the reinforcing bearing assembly 12 includes support housing 2, installation can be moved up and down on support housing 2
Stress crossbeam 3；As shown in figure 4, the center rotating of the stress crossbeam 3 is mounted on support housing 2, stress crossbeam 3 is realized
It swings；Force application apparatus 10 is installed on the support housing 2, the output end of force application apparatus 10 connects stress crossbeam 3, with to
Stress crossbeam 3 applies active force；The both ends of the stress crossbeam 3 pass through connecting rod 13 and clamping device 5 and 1 two sides of railway carriage respectively
Frame beam 6 be connected and fixed；It is equipped with pulsation forcer 8 in one end of the stress crossbeam 3, which adopts
With the eccentric wheel by motor driving rotation.
In the present embodiment, the force application apparatus 10 can be realized and apply to stress crossbeam 3 using hydraulic jack
Different size of active force.
The course of work of the dynamic calibration apparatus of car load of the present invention are as follows:
(1) force application apparatus 10 to stress crossbeam 3 apply active force, meanwhile, pulse forcer 8 eccentric wheel by motor drive into
Row rotation, so that the center of gravity cyclically-varying of 3 one end of stress crossbeam, to periodically be in pulsation by the power that force application apparatus 10 applies
Mode be applied on frame beam 6, that is, be applied to frame beam 6 power periodically surround certain value fluctuation；
(2) load cell 4 of 9 lower section of each tire of vehicle to be calibrated detects applied force, the tire 9 of 6 two sides of frame beam
Alternately bear applied force from top to bottom；The collected power of each load cell 4 is periodic pulsating force, surrounds one
Definite value fluctuation；
(3) displacement sensing while applying periodically pulsing power to vehicle to be calibrated, at each tire of vehicle to be calibrated
Device detects the deflection of flat spring 7, and obtained spring deflection is also to fluctuate around some value；
(4) spring deflection that applied force and detection obtain is depicted as to the vehicle-mounted load relation curve of deformation-of spring, each bullet
Spring is respectively formed a deformation-vehicle-mounted load criterion curve, and the vehicle-mounted load criterion curve of the deformation-is performance graph, energy
Enough exclude the frictional influence of spring.
The dynamic calibration apparatus use of car load of the present invention is dynamic, makees cyclically-varying around some load value
Applied force, measurement and deformation be also it is dynamic, make cyclically-varying around some deformation values, so that measurement is maintained dynamic, due to
Dynamic friction coefficient is more stable, then load and unloading when coefficient of friction be always just it is stable, in this way measure obtain
Vehicle load-Set criteria curve either for loading, unload all be to be overlapped.
Claims (7)
1. a kind of dynamic calibration apparatus of car load, it is characterized in that: including reinforcing bearing assembly (12), load cell (4)
With force application apparatus (10)；A corresponding load cell (4) below each tire of vehicle (9) to be calibrated, for detecting each wheel
The bearing capacity of tire；It is mounted on displacement sensor at each tire (9) of the vehicle to be calibrated, for detecting each tire
Locate the deflection of flat spring (7)；The reinforcing bearing assembly (12) includes support housing (2), installs energy on support housing (2)
The stress crossbeam (3) enough moved up and down, the both ends of stress crossbeam (3) are connected to the frame beam (6) of railway carriage (1) two sides, described
The center rotating of stress crossbeam (3) is mounted on support housing (2), realizes swinging for stress crossbeam (3)；In the bearing
Force application apparatus (10) are installed on shell (2), the output end of force application apparatus (10) connects stress crossbeam (3), with to stress crossbeam (3)
Apply active force；One end installation period of the stress crossbeam (3) sexually revises the pulsation forcer of stress crossbeam (3) center of gravity
(8).
2. the dynamic calibration apparatus of car load as described in claim 1, it is characterized in that: the pulsation forcer (8) is adopted
With the eccentric wheel structure of uniform rotation.
3. the dynamic calibration apparatus of car load as claimed in claim 2, it is characterized in that: the eccentric wheel structure is driven by motor
It is dynamic.
4. the dynamic calibration apparatus of car load as described in claim 1, it is characterized in that: the both ends of the stress crossbeam (3)
It is connected and fixed respectively by connecting rod (13) and the frame beam (6) of railway carriage (1) two sides.
5. the dynamic calibration apparatus of car load as claimed in claim 4, it is characterized in that: the stress crossbeam (3) both ends
Connecting rod (13) is fixed by clamping device (5) and frame beam (6).
6. the dynamic calibration apparatus of car load as described in claim 1, it is characterized in that: the force application apparatus (10) is using oil
Press jack.
7. the dynamic calibration apparatus of car load as described in claim 1, it is characterized in that: being arranged on the force application apparatus (10)
Force measuring machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910904226.7A CN110470372A (en) | 2019-09-24 | 2019-09-24 | The dynamic calibration apparatus of car load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910904226.7A CN110470372A (en) | 2019-09-24 | 2019-09-24 | The dynamic calibration apparatus of car load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110470372A true CN110470372A (en) | 2019-11-19 |
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ID=68516553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910904226.7A Pending CN110470372A (en) | 2019-09-24 | 2019-09-24 | The dynamic calibration apparatus of car load |
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| Country | Link |
|---|---|
| CN (1) | CN110470372A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157092A (en) * | 2020-01-02 | 2020-05-15 | 深圳市汉德网络科技有限公司 | Vehicle-mounted weighing automatic calibration method and computer readable storage medium |
| CN115752890A (en) * | 2022-11-29 | 2023-03-07 | 中国科学院光电技术研究所 | Pressure sensor calibration device of fuel assembly plate spring detection tool |
-
2019
- 2019-09-24 CN CN201910904226.7A patent/CN110470372A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157092A (en) * | 2020-01-02 | 2020-05-15 | 深圳市汉德网络科技有限公司 | Vehicle-mounted weighing automatic calibration method and computer readable storage medium |
| CN115752890A (en) * | 2022-11-29 | 2023-03-07 | 中国科学院光电技术研究所 | Pressure sensor calibration device of fuel assembly plate spring detection tool |
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