CN210571410U - Tire performance testing device - Google Patents
Tire performance testing device Download PDFInfo
- Publication number
- CN210571410U CN210571410U CN201921239163.XU CN201921239163U CN210571410U CN 210571410 U CN210571410 U CN 210571410U CN 201921239163 U CN201921239163 U CN 201921239163U CN 210571410 U CN210571410 U CN 210571410U
- Authority
- CN
- China
- Prior art keywords
- tire
- platform
- performance testing
- tire performance
- simulation
- 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.)
- Active
Links
Images
Landscapes
- Tires In General (AREA)
Abstract
The utility model discloses a tire dynamic and static performance testing device, including actuating mechanism, reduction gears, pivot, elevation structure and be used for the pivot support of fixed rotating shaft, pivot support fixed connection in one side of elevation structure, the one end of pivot rotatably connect in reduction gears, elevation structure still including be used for with test tire surface contact's all kinds of road conditions simulation test platform. The utility model discloses can test the tire static load performance such as pressure, deformation, area of contact under different loads to and deformation, wearing and tearing, pressure, frictional force, multiple dynamic parameter performance such as temperature under extreme condition such as sliding friction, hypervelocity, overload.
Description
Technical Field
The utility model relates to a testing arrangement technical field especially relates to a testing arrangement to large-scale solid tyre performance.
Background
The inspected items of a tire generally include: outer edge dimension, tensile strength, elongation at break, abrasion loss (Akron), hardness, durability, high speed performance, ground contact coefficient, inner tube-free tire unseating resistance, adhesive strength, amount of subsidence, rate of subsidence, ground contact coefficient, static load performance, absolute value of tensile strength change after aging, and the like. The device used for testing the durability and the high-speed performance basically comprises a rotary drum system, a hydraulic loading system, a control system and a protection device, and the testing principle is as follows: the rotary drum rotates to drive the tire to rotate at a certain speed, the hydraulic cylinder pushes the test tire to move to a corresponding distance under the control of the photoelectric ruler or the travel switch, and the test tire is contacted with the rotary drum to reach a certain resistance and then is subjected to performance test in a rolling friction mode.
However, the performance of the tire which can be tested by the existing testing device is relatively single, multiple performance tests are difficult to complete by one testing device, and the existing testing device cannot detect the performance of the large engineering tire under the limit working conditions of sliding friction, overspeed, overload and the like.
Therefore, the performance testing device which has multifunctional testing capability and can test the performance of the tire under the limit conditions of sliding friction, overspeed, overload and the like is needed in the field.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a tire testing device with multi-function testing capability.
The utility model discloses a main objective is to realize one kind and can test the tire at the performance test device under extreme condition such as sliding friction, hypervelocity, overload.
It is still another object of the present invention to provide a tire testing device capable of testing the tire deformation performance.
Another object of the present invention is to provide a tire testing device capable of testing tire pressure.
The utility model discloses a another purpose is to realize a can detect tire rubber wear resistance's testing arrangement.
In order to achieve the above object, the utility model provides a tire performance testing device, at least include actuating mechanism, connect in actuating mechanism's speed reduction mechanism, pivot, elevation structure and be used for fixed rotating shaft's pivot support, pivot support fixed connection in one side of elevation structure, the one end of pivot rotatably connect in speed reduction mechanism, the last simulation test platform that is used for all kinds of road conditions with test tire surface contact that is provided with of elevation structure, the tire is relative during simulation test platform's upper surface motion with the frictional force that produces between the simulation test platform is sliding friction.
In some embodiments, the lifting structure further includes a lifting table, a lifting table support for supporting the lifting table, and an oil cylinder for driving the lifting table to lift, the simulation test platform is of a detachable structure, the simulation test platform is fixedly disposed on the upper portion of the lifting table support, a pressure sensor for testing the local pressure of the tire is disposed in the center of the simulation test platform, and the simulation test platform is designed with a measuring device for measuring the contact area between the tire and the platform; the oil cylinder is arranged at the lower part of the simulation test platform; the device is characterized in that a displacement sensor used for measuring the vertical deformation of the tire is arranged in the oil cylinder, and a pressure sensor used for measuring and controlling the load borne by the whole simulation test tire is further arranged at the top of the oil cylinder.
In some specific embodiments, a pull rod is further disposed at one end of the lifting platform, and a tension sensor for detecting the magnitude of the sliding friction force between the tire and the simulation test platform is disposed on the pull rod.
In some embodiments, an end of the other end of the pull rod is fixedly disposed on the lifting structure through a nut.
In some specific embodiments, a brush for cleaning rubber powder on the surface of the tested tire is further fixedly arranged on the lifting platform.
In some embodiments, the top of the oil cylinder is provided with a ball joint connector, and the pressure sensor is arranged on the ball joint connector.
In some embodiments, a guide block is disposed at a side of the lifting structure.
In some embodiments, the driving mechanism is an ultra-high power driving motor, and the speed reduction mechanism is a multi-gear speed reducer.
In some embodiments, a counting sensor for recording the number of revolutions of the rotating shaft is arranged on the rotating shaft bracket.
In some embodiments, the testing device is further provided with a plurality of non-contact temperature sensors.
The utility model has the advantages that:
the utility model discloses a tire testing device, because the utility model discloses a combined drive of super large power driving motor and many gears gearbox, utilize the reduction ratio of the different gears of many gears speed reducer, the conversion between high low-speed and the not equidimension torque output of test machine has been realized, the requirement of tire performance under the different operating modes of detection large-span within range has been realized, realized simultaneously at sliding friction, the hypervelocity, effectively detect tire performance under the extreme operating mode such as overload, the function singleness problem that current test equipment detects and can only carry out the detection to specific type's tire has also been overcome simultaneously, the type of test equipment has been reduced, the cost is reduced, economic benefits has been improved.
The utility model discloses with pivot lug connection in gearbox, the mode that the rotary drum drove the tire has been cancelled, the slew velocity is direct to be shifted through the speed reducer and is realized, and simultaneously, directly carry out the loading to being tested the tire through elevation structure, and keep the last simulation test platform of elevation structure to be the horizontal plane, the horizontal plane does not produce the displacement during the test, make by the motion relation between test tire and the simulation test platform be the sliding friction motion, thereby can simulate the tire well at certain load, the comprehensive properties of this extreme operating mode of braking slip under the certain speed condition.
In addition, because the simulation testable platform is of a detachable structure, the simulation test platform with different roughness degrees can be replaced to directly test different road conditions according to the specific conditions of the road conditions to be tested, so that the test cost of the product is greatly reduced, and the benefit is improved.
The utility model discloses lift platform utilizes the electro-hydraulic proportional control technique to realize the power closed-loop control and the displacement monitoring of hydro-cylinder, specifically, controls the displacement that detects and control the elevating platform through electro-proportional valve and the displacement inductor that sets up in the hydro-cylinder, and then detects the deformation volume of tire vertical direction under the different loads; the magnitude of external force borne by the tire is detected and controlled through a force sensor arranged at the top of the oil cylinder, and the contact area of the tire and the platform under load is measured preferentially through impression, so that the integral pressure of the tire is obtained; a pressure sensor is arranged at the center of the test platform and used for testing the local pressure of the tire; the tire deformation, loading force, pressure, sliding friction, tire abrasion, tire temperature and other performances of the tire under different external forces and different road conditions are realized, the working efficiency is improved, and the testing cost is saved.
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an exploded view of the lift platform of FIG. 1;
FIG. 3 is a schematic axial cross-sectional view of the oil cylinder system of FIG. 1;
FIG. 4 is a schematic view of the driving mechanism of FIG. 1;
FIG. 5 is a diagram of the deformation state of the tire of FIG. 1 before and after loading.
Detailed Description
As shown in fig. 1 to 4, the present embodiment provides a tire performance testing apparatus, which includes a motor 1 as a driving mechanism, a transmission case 2 connected to the motor 1 as a speed changing mechanism, a rotating shaft 4, a lifting structure, and a rotating shaft bracket 41 for fixing the rotating shaft 4, wherein the rotating shaft bracket 41 is fixedly connected to one side of the lifting structure.
In this embodiment, the motor 1 used as the driving mechanism is an ultra-high power driving motor, and the speed change mechanism is a multi-gear transmission case 2.
Because the utility model discloses a combined drive of super large power driving motor and many gears gearbox, utilize the reduction ratio of the different gears of many gears speed reducer, the conversion between high low-speed of test machine and the not equidimension torque output has been realized, the requirement of detecting the tire performance under the different operating modes of large-span within range has been realized, realized effectively detecting the tire performance under extreme operating mode such as sliding friction simultaneously, hypervelocity, overload, the problem that current test equipment detects the function singleness has also been overcome simultaneously, the kind of test equipment has been reduced, the cost is reduced, economic benefits is improved.
As shown in fig. 1, one end of the rotating shaft 4 is rotatably connected to the transmission case 2, and the tire 5 to be tested is disposed at the end of the other end of the rotating shaft 4. The rotating shaft support 41 is provided with a counting sensor 42 for recording the number of revolutions of the rotating shaft 4.
As shown in fig. 1, the lifting structure includes a simulation test platform 33 for contacting with the outer surface of the tire 5 to be tested, and the upper surface of the simulation test platform 33 is a plane. The lifting structure further comprises a lifting platform 3, a lifting platform support 39 used for supporting the lifting platform 3 and a displacement sensor 321 arranged in an oil cylinder 32 used for driving the lifting platform 3 to lift, a pressure sensor 40 used for testing the local pressure of the tire is arranged at the center of the detachable structure of the simulation test platform 33, the simulation test platform 33 is fixedly arranged on the upper surface of the lifting platform support 39, and a pressure sensor 38 is further arranged at the lower part of the lifting platform support 39.
As shown in fig. 2 and 5, the position of the tire to be measured and the displacement of the lifting platform 3 are controlled by an electro proportional valve and a displacement sensor 321 arranged in the oil cylinder 32, so that the deformation amount of the tire in the vertical direction under different loads is detected; the magnitude of external force borne by the tire is detected and controlled through a force sensor 38 arranged at the top of the oil cylinder, and the contact area of the tire and the platform under load is measured preferentially through impression, so that the integral pressure of the tire is obtained; a pressure sensor 40 is provided through the center of the test platform for testing the local pressure of the tire.
Because with pivot lug connection in gearbox, cancelled the mode that the rotary drum drove the tire, the slew velocity directly shifts gears through the speed reducer and realizes, simultaneously, directly carry out the loading to the tire under test through elevation structure, and keep the simulation test platform on the elevation structure to the horizontal plane, the horizontal plane does not produce the displacement during the test for the motion relation between tire under test and the simulation test platform is sliding friction motion, thereby can simulate the comprehensive properties of this extreme operating mode of tire braking slip under certain load, certain speed condition well.
In addition, because the simulation testable platform is of a detachable structure, the simulation test platform with different roughness degrees can be replaced to directly test different road conditions according to the specific conditions of the road conditions to be tested, so that the test cost of the product is greatly reduced, and the benefit is improved.
As shown in fig. 2, a pull rod 35 is further disposed at one end of the simulation test platform 33, a tension sensor 36 for detecting the magnitude of the friction force between the tire 5 and the simulation test platform 33 is disposed on the pull rod 35, and an end portion of the other end of the pull rod 35 is fixedly disposed on the lifting table support 39 through a nut 6. The tension sensor 36 is used for detecting the magnitude of the sliding friction force under different loading forces for tire friction resistance research.
As shown in fig. 2, a brush 34 for cleaning rubber powder on the surface of the tire to be tested is further fixedly arranged on the lifting platform 3, and the rubber powder on the surface of the tire 5 can be cleaned in time through the brush 34 so as to be collected.
Preferably, in order to collect the powder in time, the device is also provided with a tire rubber powder collecting device, and the tire rubber wear data is accurately measured by a precise weighing instrument, so that the detection of the wear resistance of the tire rubber is realized.
As shown in fig. 2, the lifting structure is provided with guide blocks 37 at its sides.
As shown in fig. 3 and 4, the oil cylinder 32 is disposed at the lower portion of the simulation test platform 33, and the oil cylinder 32 is fixedly connected to the bottom of the lifting table 3 by the oil cylinder mounting base 324 and is fixed by the oil cylinder fixing plate 325 to ensure that the oil cylinder shaft 326 is in a vertical position.
A displacement sensor 321 is arranged in a cylinder shaft 326 of the oil cylinder 32, and a force sensor 36 for measuring and controlling the load of the simulation test platform is arranged at the top of the oil cylinder 32. The top of the cylinder shaft 326 is provided with a ball joint connector 323, the ball joint connector 323 is fixed by a ball joint gland 322, and the pressure sensor 38 is fixed on the ball joint connector 323.
In the embodiment, the force closed-loop control and displacement monitoring of the oil cylinder are realized by utilizing an electro-hydraulic proportional control technology, specifically, the position of the tested tire and the displacement of the lifting platform 3 are controlled by an electro-proportional valve and a displacement sensor 321 arranged in the oil cylinder 32, and further the deformation amount of the tire in the vertical direction under different loads is detected; the magnitude of external force borne by the tire is detected and controlled through a force sensor 38 arranged at the top of the oil cylinder, and the contact area of the tire and the platform under load is measured preferentially through impression, so that the integral pressure of the tire is obtained; a pressure sensor 40 is arranged at the center of the test platform and used for testing the local pressure of the tire; the tire deformation, loading force, pressure, sliding friction, tire abrasion, tire temperature and other performances of the tire under different external forces and different road conditions are realized, the working efficiency is improved, and the testing cost is saved.
When the device is used specifically, as shown in fig. 1 to 4, the motor 1 drives the gearbox 2 to enable the rotating shaft 4 in the rotating shaft support 41 and the tire 5 to rotate together, the oil cylinder 32 and the ball hinge connector 323 are fixedly connected to the force sensor 322, the force sensor 322 is fixedly connected with the lifting platform 3, the lifting platform 3 can vertically move up and down through the lifting and contracting of the oil cylinder 32, and the simulation test platform 33 applies load to the tire, so that the test of various performances of the tested tire is realized.
The linkage of the ball-hinged connector 323, the pull rod 35 and the guide block 37 ensures the displacement precision of the lifting platform 3 in the vertical direction. The displacement sensor 321, the force sensor 322 and the tension sensor 36 obtain required test values, the number of turns of the rotating shaft is recorded through the counting and sensing device 42, and then the calculation mileage data is calculated, and the static load test of the deformation quantity and the loading force of the tire under the action of external force when the tested tire is in a static state is completed according to the following calculation formula.
The specific formula is as follows:
F＝(P1+P2-2P0)*A/9800
＝F1+F2-M
wherein:
f, tire cylinder loading force (T);
f1 — lifting platform force sensor;
f2 — lifting platform force sensor;
p is the actual oil cylinder pressure (MPa);
p0-no-load cylinder pressure (MPa);
a-the area of a rodless cavity of the oil cylinder (mm ^ 2);
m-self weight of the lift table (T).
And (3) compression deformation detection: two oil cylinders are arranged at the lower part of the simulation test platform, displacement sensors are arranged on the two oil cylinders, and the displacement values respectively detected by the two oil cylinders are Y1 and Y2;
△X＝Y-C
△ X-tire compression deformation value;
y is the ascending displacement of the lifting cylinder, wherein Y is (Y1+ Y2)/2;
c, fixing and displacing tires of various specifications when the tires are in contact with the lifting platform;
utilize motor direct drive tire, utilize the power closed-loop control and the displacement monitoring of electro-hydraulic proportional control technique realization hydro-cylinder to promote elevation structure and do dynamic load test, the formula is as follows:
F＝(P1+P2-2P0)*A/9800
＝F1+F2-M
f, tire cylinder loading force (T);
f1 — lifting platform force sensor;
f2 — lifting platform force sensor;
p is the actual oil cylinder pressure (MPa);
p0-no load (no contact with tire) cylinder pressure (MPa);
a-the area of a rodless cavity of the oil cylinder (mm ^ 2);
m-self weight of the lift table (T).
The running mileage is obtained by calculating the number of turns of the wheel table obtained by the sensor of the rotating shaft, and the calculation formula is as follows:
s ═ pi D × n/1000000; wherein:
s-mileage (km);
d-tire diameter (mm);
n-number of turns.
In other embodiments, the testing device is also provided with a plurality of non-contact temperature sensors to detect the azimuth temperature of the tested tire, so that the specific situation of monitoring the heat generated by the tested tire when sliding under extreme working conditions is achieved.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. The utility model provides a tire performance testing arrangement, includes actuating mechanism at least, connect in actuating mechanism's reduction gears, pivot, elevation structure and be used for the pivot support of fixed pivot, pivot support fixed connection in one side of elevation structure, a serial communication port, the one end of pivot rotatably connect in reduction gears, the last simulation test platform that is used for all kinds of road conditions with test tire surface contact that is provided with of elevation structure, the tire is relative during simulation test platform's upper surface motion with the frictional force that produces between the simulation test platform is sliding friction.
2. The tire performance testing device of claim 1, wherein the lifting structure further comprises a lifting table, a lifting table support for supporting the lifting table, and an oil cylinder for driving the lifting table to lift, the simulation testing platform is of a detachable structure, the simulation testing platform is fixedly arranged at the upper part of the lifting table support, a pressure sensor for testing the local pressure of the tire is arranged on the simulation testing platform, and the simulation testing platform is designed with a measuring device for measuring the contact area between the tire and the platform; the oil cylinder is arranged at the lower part of the simulation test platform; the device is characterized in that a displacement sensor used for measuring the vertical deformation of the tire is arranged in the oil cylinder, and a pressure sensor used for measuring and controlling the load borne by the whole simulation test tire is further arranged at the top of the oil cylinder.
3. The tire performance testing device of claim 2, wherein a pull rod is further disposed at one end of the lifting platform, and a tension sensor for detecting the magnitude of the sliding friction between the tire and the simulation testing platform is disposed on the pull rod.
4. The tire performance testing apparatus of claim 3, wherein an end of the other end of the pull rod is fixedly disposed on the lifting structure by a nut.
5. The tire performance testing device of claim 4, wherein a brush for cleaning rubber powder on the surface of the tested tire is further fixedly arranged on the lifting table.
6. The tire performance testing apparatus of claim 2, wherein the top of said cylinder is provided with a ball joint connector, and said pressure sensor is disposed on said ball joint connector.
7. The tire performance testing apparatus of claim 1, wherein a guide block is provided to a side of the elevating structure.
8. The tire performance testing device of any one of claims 1, 2, 6 or 7, wherein the driving mechanism is an ultra-high power driving motor, and the speed reducing mechanism is a multi-gear speed reducer.
9. The tire performance testing apparatus of claim 1, wherein a counter sensor for recording the number of revolutions of the spindle is provided on the spindle support.
10. The tire performance testing apparatus of claim 1, wherein a plurality of non-contact temperature sensors are further provided on the testing apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921239163.XU CN210571410U (en) | 2019-08-02 | 2019-08-02 | Tire performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921239163.XU CN210571410U (en) | 2019-08-02 | 2019-08-02 | Tire performance testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210571410U true CN210571410U (en) | 2020-05-19 |
Family
ID=70641584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921239163.XU Active CN210571410U (en) | 2019-08-02 | 2019-08-02 | Tire performance testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210571410U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375997A (en) * | 2019-08-02 | 2019-10-25 | 岳阳山益科技有限公司 | Tyre performance test device |
| CN111780986A (en) * | 2020-06-19 | 2020-10-16 | 东风汽车集团有限公司 | Dynamic braking retarding torque testing system and method based on whole vehicle working condition |
-
2019
- 2019-08-02 CN CN201921239163.XU patent/CN210571410U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375997A (en) * | 2019-08-02 | 2019-10-25 | 岳阳山益科技有限公司 | Tyre performance test device |
| CN111780986A (en) * | 2020-06-19 | 2020-10-16 | 东风汽车集团有限公司 | Dynamic braking retarding torque testing system and method based on whole vehicle working condition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110375997A (en) | Tyre performance test device | |
| CN210571410U (en) | Tire performance testing device | |
| CN101699242B (en) | Accelerated rolling bearing fatigue life tester | |
| CN201060144Y (en) | Rolling friction abrasion machine | |
| CN103048136A (en) | High and low temperature environment service life testing machine for joint bearing | |
| CN105466702B (en) | Mecanum wheel comprehensive detection experimental rig | |
| CN103076178A (en) | Experimental machine for evaluating impact-loading type tribological performance of joint bearing | |
| CN106769134A (en) | The test device of Lunar Orbiter drive mechanism effectiveness of performance under high and low temperature environment | |
| CN108613920A (en) | A kind of simulation test device and method for tire and pavement friction process study | |
| CN103134668B (en) | Pulley rotation device for detecting flexibility and utilize it to carry out the method detected | |
| CN207423535U (en) | A kind of automobile loads braking performance detector | |
| CN201532306U (en) | Rolling bearing fatigue life strengthened test machine | |
| CN101509830A (en) | Gear box detection device | |
| CN2893684Y (en) | Vehicle tyre high-speed durable testing machine | |
| CN201521429U (en) | Screw pump driving head performance detection testing device | |
| CN206095618U (en) | Selector inspection robot | |
| CN115493538B (en) | Harbor machinery gyration position detection device | |
| CN202793970U (en) | Double-disc type lubricating oil tractive power testing machine | |
| CN111735712A (en) | Step chain life test device | |
| CN2376624Y (en) | Comprehensive test platform for motor vehicle | |
| CN208254818U (en) | Half vehicle floating installation of parallel four-bar double-slider based on load feedback | |
| CN202453176U (en) | Pulley rotation flexibility detecting device | |
| CN102252841A (en) | Wind power watt pitch, yaw and main bearing testing machine | |
| CN114354482B (en) | Device and method for monitoring damage of steel wire rope-wheel groove roller and sliding friction coupling | |
| CN201458586U (en) | Novel crane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |