CN219956779U - Calibration device for tangential force of tire rolling resistance testing machine and tire testing machine - Google Patents
Calibration device for tangential force of tire rolling resistance testing machine and tire testing machine Download PDFInfo
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- CN219956779U CN219956779U CN202320878313.1U CN202320878313U CN219956779U CN 219956779 U CN219956779 U CN 219956779U CN 202320878313 U CN202320878313 U CN 202320878313U CN 219956779 U CN219956779 U CN 219956779U
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- testing machine
- tangential force
- rolling resistance
- tire
- calibration
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- 238000012360 testing method Methods 0.000 title claims abstract description 46
- 238000005096 rolling process Methods 0.000 title claims abstract description 36
- 239000004677 Nylon Substances 0.000 claims description 14
- 229920001778 nylon Polymers 0.000 claims description 14
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 description 5
- 210000003437 trachea Anatomy 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model relates to the technical field of tire testing machines, in particular to a tangential force calibrating device of a tire rolling resistance testing machine and the tire testing machine. The utility model can ensure the accuracy of the force values of the tangential force sensor of the tire rolling resistance testing machine in the positive direction and the negative direction.
Description
Technical Field
The utility model relates to the technical field of tire testing machine equipment, in particular to a tangential force calibrating device of a tire rolling resistance testing machine and the tire testing machine.
Background
The tire rolling resistance is the resistance against the rolling direction, which is the tire rolling resistance, when the pneumatic tire is rolled on an ideal road surface (usually a flat dry road surface or a hard road surface) in which the central symmetry plane of the outer edge is consistent with the rolling direction of the wheel.
In the field of tire testing, the rolling resistance test of the tire indoor test is of great importance, and has a great importance effect on energy conservation and emission reduction of automobiles, and the oil consumption of the automobiles can be reduced by 3% -5% when the rolling resistance is reduced by 10%. Therefore, it is particularly important how to accurately measure the rolling resistance of the tire. At present, a drum type testing machine is usually used for measuring the rolling resistance of a tire, a force measuring method is mostly adopted in the testing method industry for measuring the rolling resistance of the tire, when the force measuring method is used for measuring the rolling resistance of the tire, the influence caused by the mutual intersection of a load and tangential force and the misalignment of the load needs to be eliminated, and the influence can be compensated by the forward and backward assembly of the tire (namely, the tangential force in the positive and negative directions is collected); ensuring the accuracy of the tangential force (i.e., the accuracy of the tangential force sensor) is therefore critical to the testing of the rolling resistance of the tire.
At present, a nylon rope is generally used for connecting weights and a tray to the lower portion of a connecting disc, the weight is adjusted to calibrate and check the tangential force sensor regularly, the calibration process is time-consuming and labor-consuming, the weight is increased step by step, the force received by the connecting disc cannot be finely adjusted, the calibration result is affected, and when tires of different sizes are replaced, the tangential force sensor is required to be calibrated again, so that time is wasted, and the test speed is affected.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides a tangential force calibrating device of a tire rolling resistance testing machine and the tire testing machine.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a calibration device of tire rolling resistance testing machine tangential force, includes the connection pad, be provided with tangential force sensor in the connection pad, all be provided with air bag device directly over the connection pad and under, air bag device sets up in the calibration support, calibration support and air bag device junction are provided with calibration sensor, be connected with first connecting wire on the calibration sensor, the first connecting wire other end is connected with data processing analysis system, the air bag device other end be provided with the nylon rope that the connection pad is connected, air bag device one side is connected with the air supply through the trachea, be provided with air pressure sensor on the trachea, air pressure sensor passes through the second connecting wire and is connected to on the data processing analysis system.
Further, an amplifier is provided on the first connection line, the amplifier being provided between the data processing analysis system and the calibration sensor.
Further, lifting lugs are arranged at two ends of the nylon rope, one end lifting lug of the nylon rope is connected to the air bag device, and the other end lifting lug of the nylon rope is connected to the connecting disc.
Further, reinforcing ribs are arranged in the calibration support.
Further, the airbag device has a cylindrical structure.
Further, the data processing and analyzing system is a computer.
The utility model provides a tire testing machine, includes platform base, movable platform, servo motor, connecting axle, rotary drum and tire rolling resistance testing machine tangential force's calibrating device, tire rolling resistance testing machine tangential force's calibrating device upper half sets up on the movable platform, tire rolling resistance testing machine tangential force's calibrating device lower half sets up on the platform base.
The beneficial effects achieved by the utility model are as follows:
1. the airbag device and the calibration sensor are arranged on the upper side and the lower side of the connecting disc, so that the accuracy of force values in the positive direction and the negative direction of the tangential force sensor can be calibrated; the gas pressure in the control air bag can accurately control acting force applied to the tangential force sensor and the calibration sensor, the numerical values of the tangential force sensor and the calibration sensor can be accurately displayed on the computer display, test staff can calibrate the numerical values of the tangential force sensor and the calibration sensor in real time, and the calibration work of the tangential force of the tire rolling resistance testing machine is facilitated.
2. Compared with the current popular weight hanging calibration mode, the weight hanging calibration method does not need a tester to move the weight back and forth, reduces the working strength and improves the calibration efficiency.
3. The utility model uses the control program to adjust the air pressure of the air bag device and then control the force value, thus ensuring the checking and calibrating precision, and also controlling the precision of the equipment sensor in real time through the computer interface, thereby ensuring the stability and reliability of the test data.
4. The force applied by the air bag device on the tangential force sensor and the calibration sensor is gradually increased, and the force applied by the mode of adding the weight for calibration is gradually increased.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of the calibration system of the present utility model;
fig. 3 is a schematic view of the upper alignment bracket structure of the present utility model.
The figure indicates: 1. a data processing analysis system; 2. a first connecting line; 3. an amplifier; 4. a gas source; 5. an air pressure sensor; 6. an air pipe; 7. nylon ropes; 8. a platform base; 9. lifting lugs; 10. a movable platform; 11. a servo motor; 12. a connecting shaft; 13. a rotating drum; 14. a connecting disc; 15. calibrating the sensor; 16. an air bag device; 17. calibrating the bracket; 18. and a second connecting wire.
Detailed Description
In order to better understand the objects, structures and functions of the present utility model, a device for calibrating tangential force of a tire rolling resistance testing machine and a tire testing machine according to the present utility model will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 3, a calibration device for tangential force of a tire rolling resistance testing machine comprises a connecting disc 14, a tangential force sensor is arranged in the connecting disc 14, a plurality of connecting holes are uniformly formed in the outer side of the circumference of the connecting disc 14, a calibration support 17 is arranged right above and right below the connecting disc 14, the upper calibration support 17 is fixed on a movable platform 10, the lower calibration support 17 is fixed on a platform base 8, reinforcing ribs are arranged in the calibration support 17, the reinforcing ribs are fixed on the calibration support 17 more stably, an air bag device 16 is arranged on one side, opposite to the upper calibration support 17 and the lower calibration support 17, of the air bag device 16, a calibration sensor 15 is arranged between the air bag device 16 and the calibration support 17, the calibration sensor 15 can accurately measure the applied force value of the air bag device 16, a first connecting wire 2 is connected to the calibration sensor 15, the other end of the first connecting wire 2 is connected with a data processing analysis system 1, the data processing analysis system 1 is generally a computer, an amplifier 3 is arranged on the first connecting wire 2, the amplifier 3 is arranged between the amplifier 3 and the calibration sensor 15 and the computer can read data, and the amplifier can feed back the data to the computer.
One side of the air bag device 16 is connected with an air source 4 through an air pipe 6, the air source 4 is used for providing pressure for the air bag device 16, an air pressure sensor 5 is arranged on the air pipe 6, the air pressure sensor 5 is arranged between the air source 4 and the air bag device 16, the air pressure sensor 5 is connected to a computer end through a second connecting wire 18, and the air pressure sensor 5 is used for reading air pressure data inside the air bag device 16 and feeding the data back to the computer end.
The upper and lower airbag devices 16 are respectively connected to the right upper side and the right lower side of the connecting disc 14 through nylon ropes 7, lifting lugs 9 are respectively arranged at two ends of the nylon ropes 7, and the lifting lugs 9 connected with the connecting disc 14 are hung in connecting holes on the connecting disc 14.
The utility model provides a tire testing machine, includes platform base 8, movable platform 10, servo motor 11, connecting axle 12, rotary drum 13 and tire rolling resistance testing machine tangential force's calibrating device, tire rolling resistance testing machine tangential force's calibrating device first half sets up on the movable platform 10, tire rolling resistance testing machine tangential force's calibrating device second half sets up on the platform base 8, top calibration support 17 sets up with the below calibration support 17 is relative.
When in use, the tangential force is positive in the upward direction and negative in the downward direction. When the tangential force is calibrated, the lower end lifting lug 9 of the nylon rope 7 in the upper calibration support 17 is hung in the connecting hole of the connecting disc 14, then a calibration program is set on a computer, equipment is started, the air source 4 is controlled to inject air into the air bag device 16, the air quantity of the air bag device 16 is controlled by reading the parameters of the air pressure sensor 5, the same acting force is applied to the calibration sensor 15 and the tangential force sensor at the same time, the acting force applied to the calibration sensor 15 and the tangential force sensor by the air bag device 16 is stable, and finally the indication error and the relative error of the tangential force sensor are directly calculated through automatic calculation of computer software, so that the calibration of test personnel is facilitated.
When the negative tangential force is calibrated, the lifting lug 9 at the upper end of the nylon rope 7 in the lower calibration bracket 17 is hung in the connecting hole of the connecting disc 14, and the rest steps are the same as the positive tangential force calibration process.
It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.
Claims (7)
1. The utility model provides a calibration device of tire rolling resistance testing machine tangential force, includes connection pad (14), be provided with tangential force sensor in connection pad (14), its characterized in that: the device is characterized in that an airbag device (16) is arranged right above and below the connecting disc (14), the airbag device (16) is arranged in a calibration support (17), a calibration sensor (15) is arranged at the joint of the calibration support (17) and the airbag device (16), a first connecting wire (2) is connected to the calibration sensor (15), a data processing analysis system (1) is connected to the other end of the first connecting wire (2), a nylon rope (7) connected with the connecting disc (14) is arranged at the other end of the airbag device (16), an air source (4) is connected to one side of the airbag device (16) through an air pipe (6), an air pressure sensor (5) is arranged on the air pipe (6), and the air pressure sensor (5) is connected to the data processing analysis system (1) through a second connecting wire (18).
2. A device for calibrating tangential force of a tire rolling resistance testing machine according to claim 1, wherein: an amplifier (3) is arranged on the first connecting line (2), and the amplifier (3) is arranged between the data processing analysis system (1) and the calibration sensor (15).
3. A device for calibrating tangential force of a tire rolling resistance testing machine according to claim 1, wherein: the two ends of the nylon rope (7) are respectively provided with a lifting lug (9), one end lifting lug (9) of the nylon rope (7) is connected to the air bag device (16), and the other end lifting lug (9) of the nylon rope (7) is connected to the connecting disc (14).
4. A device for calibrating tangential force of a tire rolling resistance testing machine according to claim 1, wherein: reinforcing ribs are arranged in the calibration support (17).
5. A device for calibrating tangential force of a tire rolling resistance testing machine according to claim 1, wherein: the airbag device (16) is of a cylindrical structure.
6. A device for calibrating tangential force of a tire rolling resistance testing machine according to claim 1, wherein: the data processing and analyzing system (1) is a computer.
7. A tire testing machine, characterized in that: the device comprises a platform base (8), a movable platform (10), a servo motor (11), a connecting shaft (12), a rotary drum (13) and the device for calibrating tangential force of the tire rolling resistance testing machine according to any one of claims 1-6, wherein the upper half part of the device for calibrating tangential force of the tire rolling resistance testing machine is arranged on the movable platform (10), and the lower half part of the device for calibrating tangential force of the tire rolling resistance testing machine is arranged on the platform base (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320878313.1U CN219956779U (en) | 2023-04-19 | 2023-04-19 | Calibration device for tangential force of tire rolling resistance testing machine and tire testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320878313.1U CN219956779U (en) | 2023-04-19 | 2023-04-19 | Calibration device for tangential force of tire rolling resistance testing machine and tire testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219956779U true CN219956779U (en) | 2023-11-03 |
Family
ID=88544753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320878313.1U Active CN219956779U (en) | 2023-04-19 | 2023-04-19 | Calibration device for tangential force of tire rolling resistance testing machine and tire testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219956779U (en) |
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2023
- 2023-04-19 CN CN202320878313.1U patent/CN219956779U/en active Active
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