CN108548776B - Rubber material surface friction performance testing device - Google Patents
Rubber material surface friction performance testing device Download PDFInfo
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- CN108548776B CN108548776B CN201810396062.7A CN201810396062A CN108548776B CN 108548776 B CN108548776 B CN 108548776B CN 201810396062 A CN201810396062 A CN 201810396062A CN 108548776 B CN108548776 B CN 108548776B
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- 238000012360 testing method Methods 0.000 title claims abstract description 43
- 239000000463 material Substances 0.000 title claims abstract description 24
- 239000011521 glass Substances 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 25
- 238000002474 experimental method Methods 0.000 abstract description 6
- 238000004458 analytical method Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
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- General Physics & Mathematics (AREA)
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a device and a method for testing the surface friction performance of a rubber material. The testing device comprises a base, a speed power driving device, a pressure applying device, a bearing rubber appliance and a high-speed camera device; the speed power driving device drives the bearing rubber appliance to move; and a cantilever beam sensor is arranged to record the friction force on the rubber surface in real time, and the surface change of the rubber block is recorded in real time through a high-speed camera. According to the invention, through analyzing the mechanical behavior of Schallamach waves generated by the friction of the glass hemispheroid on the rubber, the analysis result of the experiment can be applied to the mechanical behavior of the rubber material, and the mechanical property of the rubber under the pressure sliding of different hemispheroids can be simulated through a finite element.
Description
Technical Field
The invention relates to a device and a method for testing the surface friction performance of a rubber material, and belongs to the technical field of material mechanical property testing.
Background
Before the tire is put into use, the tire must be tested, and the main material of the tire is rubber, so the mechanical property test of the rubber is an important link which must be tested by many tire manufacturers. The rubber can be widely produced only after the mechanical properties of the rubber are measured and the rubber is confirmed to reach the national safety standard. Furthermore, many fields now require the use of rubber, for example, the tightness of the device, the rubber composition of the shoe bottom, conveyor belts, etc., which require the detection of the mechanical properties of the rubber. For example, the patent CN102645401A of the Chinese commercial aircraft Limited liability company tests the dynamic resistance of the rubber sealing element, and uses a force sensor to measure the positive pressure in the vertical direction and the friction force in the horizontal direction. Patent CN104749061A of the university of Qingdao science and technology discloses a continuous type test device for abrasion of short fiber radial orientation tread rubber. Patent CN104777094A of the university of qinghua discloses a rubber friction performance test experimental device, which can test the rubber friction force and the rules of different road surfaces, contact areas, loads, sliding speeds and road surface environments with impurities, thereby effectively researching the rubber performance. However, the existing rubber friction testing device is generally only used for measuring the friction coefficient of rubber, other aspects are basically ignored, especially under high-speed movement, the change condition of the rubber surface is not researched, the speed of the existing rubber friction testing device is generally low, and the mechanical property of the rubber under the high-speed condition is ignored. In addition, the existing testing device usually uses a three-dimensional sensor to measure the mechanical property of rubber, and the testing cost is high. Therefore, it is necessary to provide a more efficient, simple and low-cost experimental device platform for better testing the actual mechanical properties of rubber.
Disclosure of Invention
The invention mainly solves the existing problems, provides a more efficient and concise experimental device platform and better tests the actual mechanical property of rubber. The mechanical properties of the rubber at different speeds are better simulated through finite elements. The device not only tests the friction force, but also records the change condition of the rubber surface under high-speed motion by using a high-speed camera. In addition, the device only uses one tension and compression sensor and two cantilever beam sensors to replace a three-dimensional sensor, so that the cost of the experimental device is greatly saved.
The technical scheme for solving the problems is as follows:
a rubber material surface friction performance testing device comprises a base, a speed power driving device, a pressure applying device, a bearing rubber appliance and a high-speed camera device; one end of the speed power driving device and one end of the pressure applying device are arranged on the base, the other end of the pressure applying device is arranged on the bearing appliance for bearing rubber, the force required by the rubber under different conditions is applied, and the speed power driving device drives the bearing rubber appliance to move.
Furthermore, the bearing rubber appliance is arranged on a double-guide-rail sliding rail which is arranged on the base. The speed power driving device drives the bearing rubber appliance to move through the driving connecting device. The rubber bearing device comprises a step-type aluminum alloy plate, and a glass plate is paved into the step-type aluminum alloy plate, so that a rubber block is placed on the glass for testing. The bearing rubber device fixes the cantilever beam sensor on the transverse plate assembled on the hollow groove. Bear the rubber utensil and include cascaded aluminum alloy plate, cascaded aluminum alloy plate is fixed on the cantilever beam sensor, and the frictional force on the surface of rubber transmits for cascaded aluminum alloy groove during the test, gets off through the record of cantilever beam sensor.
Further, the pressure applying device has a lifting table for adjusting the pressure applied to the rubber. The pressure applying device is provided with a pulling pressure sensor, a glass hemisphere is fixed on the pulling pressure sensor, the glass hemisphere is placed on the rubber block, and the pressure applied to the rubber is detected through the pulling pressure sensor.
And arranging the high-speed camera below the glass plate to record the surface change of the rubber block in real time.
The invention also requires a method for testing the surface friction performance of the rubber material, which is used for testing by using the device for testing the surface friction performance of the rubber material, and comprises the following steps:
adjusting the pressure applied to the rubber block to be tested through a pressure applying device, and setting a tension pressure sensor to detect the pressure applied to the rubber block;
the speed power driving device drives the bearing rubber appliance to move, so that the rubber block is driven to move;
arranging a cantilever beam sensor to record the friction force on the rubber surface in real time;
the surface changes of the rubber blocks are recorded in real time by a high-speed camera.
An experimental device for testing mechanical properties of a rubber surface comprises a base, a rubber bearing device, a glass hemisphere, a tension pressure sensor, a cantilever beam sensor, a speed power driving device, a double-guide-rail sliding rail, a high-speed camera and a pressure applying device, wherein the bearing device bearing rubber is fixed on the sliding rail; the pressure applying device is arranged on a bearing device for bearing rubber, and applies the force required by the rubber under different conditions; the tension pressure sensor is arranged between the glass hemisphere and the pressure applying device and used for transmitting pressure and measuring rubber stress data in real time; the support is also built by aluminum alloy, and the experiment platform also uses aluminum alloy, and smooth surface is horizontal, ensures that the workstation keeps the level.
The speed power driving device described in the invention comprises a linear guide rail, a servo motor and a connecting device connected with a rubber bearing appliance, wherein the servo motor is fixed at one end of the linear guide rail, the linear guide rail is provided with a spiral straight rod which is fixed on the servo motor, the spiral straight rod is provided with the connecting device connected with the rubber bearing appliance, when the servo motor rotates, the spiral rod rotates to drive the connecting device to move, so that the rubber bearing device is driven to move, the rubber bearing device is given horizontal movement speed, and the rubber fixed on the rubber bearing device has horizontal speed.
The rubber bearing device comprises a rectangular hollow groove structure assembled by aluminum alloy plate structures, a stepped aluminum alloy plate (hollow as shown in the figure), an organic glass plate and a cantilever type sensor; the rectangular hollow groove structure that the aluminum alloy plate assembled is fixed on two guide rail slide rails, and two guide rail slide rails must keep parallelly, use the nut to fix the cantilever type sensor at the rectangular hollow groove structure that the aluminum alloy plate assembled, fix cascaded aluminum alloy plate on the cantilever type sensor, the organic glass board is put on cascaded aluminum alloy plate, and rubber is placed on the organic glass board, like this can real-time measurement rubber at the frictional force of slip in-process.
The structure of the pressurizing device is as follows: a plurality of solid round rods, a plurality of rotatable connecting devices, a pull pressure sensor, a lifting platform and a glass hemisphere. The lifting platform is fixed on the experiment table top, the solid round rod is connected into a structure as shown in the figure through the rotatable connecting device, a nut hole is drilled in the center of the top end of the solid round rod, the tension and compression sensor is fixed on the solid round rod through a nut, and then the glass hemisphere is fixed on the tension and compression sensor, so that the required applied pressure can be controlled by adjusting the lifting platform, and the pressure on rubber is measured in real time through the tension and compression sensor.
The device for observing the surface change phenomenon of the material comprises: the rubber surface change recording device mainly comprises a high-speed camera, wherein the high-speed camera is placed under a pressurizing device, shooting and recording work is carried out on rubber through a square hole of an experiment platform and an organic glass plate, and the change phenomenon of the surface of a material can be recorded in real time through the high-speed camera.
During the experiment, the speed required by the rubber in the sliding process is controlled by adjusting the torque of the servo motor, the pressure applied to the rubber is controlled by controlling and adjusting the height of the lifting table, the pressure can be measured in real time by the pressurizing device, the friction force applied to the rubber in the sliding process can be measured in real time by the cantilever type sensor, and the data can be transmitted to the computer for recording and processing in real time. The experimental device can be used for applying the analysis result of the experiment to the mechanical behavior of a rubber material by analyzing the mechanical behavior of Schallamach waves generated by friction of the hard hemispheroid on the rubber, and simulating the mechanical property of the rubber under the pressure sliding of different hemispheroids through finite elements.
Drawings
FIG. 1 is a schematic structural diagram of a rubber material surface friction performance testing device of the present invention.
Fig. 2 is a driving apparatus of the frictional performance testing apparatus of the present invention.
Fig. 3 is a pressure device of the frictional performance testing apparatus of the present invention.
FIG. 4 is a rubber bearing device in the friction performance testing apparatus of the present invention.
FIG. 5 is a schematic three-dimensional structure of the friction performance testing apparatus according to the present invention.
Reference numerals: a base 1; a servo motor 2; a screw 3; a drive connection means 4; a double-guide rail slide rail 5; a double-guide-rail sliding block 6; a lifting table 7; a round bar 8; a pull pressure sensor 9; a rod 10; a connecting device 11; a cantilever sensor 12; a stepped aluminum alloy plate 13; a longitudinal plate 14; a transverse plate 15; a glass hemisphere 16.
Detailed Description
In order to make the technical scheme of the rubber material surface friction performance testing device and the testing method more clearly understood, the technical scheme of the invention is further described with reference to fig. 1-5 and the detailed description.
As shown in the figure, the experimental device for testing the mechanical property of the rubber surface comprises a base 1, a servo motor 2, a driving connecting device 4, a double-guide-rail sliding rail 5, a pressure applying device, a bearing rubber appliance and a high-speed camera device, wherein the servo motor 2 is connected with a screw rod 3, the driving connecting device 4 is fixed on the screw rod 3, so that the screw rod 3 is driven to rotate when the servo motor 2 works, then the driving connecting device moves, the rubber bearing appliance is connected with the longitudinal plate 14 on the hollow groove assembled by the two round rods 8 and the aluminum alloy plate, the hollow groove assembled by the aluminum alloy plate is fixed on the double-guide-rail sliding block 6, the double-guide-rail sliding block 6 is arranged on the double-guide-rail sliding rail 5, the driving connecting device 4 moves to drive the rubber bearing appliance to move on the double-guide-rail sliding rail 5, and the rubber can move forwards at a constant speed.
The rubber bearing device is characterized in that the cantilever beam sensor 12 is fixed on a transverse plate 15 on a hollow groove formed by assembling aluminum alloy plates, one is arranged on each plate, so that when rubber is subjected to friction force, the rubber can be recorded in real time by the cantilever beam sensor 12, the stepped aluminum alloy plates 13 are fixed on the cantilever beam sensor 12, then glass plates are paved into the stepped aluminum alloy plates 13, so that a rubber block can be placed on glass for testing, a high-speed camera can be placed below the glass block for recording the surface change of the rubber in real time, the friction force can be transmitted to the stepped aluminum alloy grooves 13, and finally the rubber can be recorded by the cantilever beam sensor.
The pressurizing device of the device is shown in fig. 3, a plurality of rods 10 can be fixed into a structure shown in fig. 3 through a connecting device 11, the magnitude of pressure applied to rubber can be adjusted by adjusting the lifting table 7 in fig. 3, the tension pressure sensor 9 is fixed on the rods 10, the glass hemisphere 16 is fixed on the tension pressure sensor 9 through a nut, and when the lifting table round rod 10 is adjusted, the lifting table round rod 10 can move up and down, and the tension pressure sensor 9 can be used for observing how much pressure is applied to the rubber.
When the rubber bearing device is used, rubber is firstly placed in the bearing device, then the lifting platform is adjusted to control the pressure to be applied to the rubber, finally the servo motor gives a constant speed to the rubber, the driving connecting device reciprocates on the screw rod to drive the bearing device to move on the double-guide-rail sliding rail, the change condition of the rubber surface is recorded through the high-speed camera, the stress data of the rubber is measured through the cantilever beam sensor, the friction force between the rubber and the glass hemisphere can be measured, and the friction force is transmitted to the computer or a memory connected with the computer to be recorded and processed. The invention has simple structure and convenient use, can accurately measure the performances of the rubber such as rigidity, wear resistance, friction characteristic, service life and the like, and provides accurate reference data for the manufacture of tires.
The above description is only a preferred embodiment of the present invention, and these embodiments are based on different implementations of the present invention, and the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A rubber material surface friction performance testing device comprises a base, a speed power driving device, a pressure applying device, a rubber bearing appliance and a high-speed camera device; the method is characterized in that: one end of the speed power driving device and one end of the pressure applying device are arranged on the base, the other end of the pressure applying device is arranged on the rubber material, the rubber material is arranged on the organic glass plate, the force required by the rubber under different conditions is applied, and the speed power driving device drives the rubber bearing device to move; the rubber bearing device comprises a rectangular hollow groove structure assembled by aluminum alloy plate structures, a stepped aluminum alloy plate, an organic glass plate and a cantilever beam sensor, wherein the glass plate is laid in the stepped aluminum alloy plate, so that a rubber block is placed on the organic glass plate surface for testing, the cantilever beam sensor is fixed on a transverse plate assembled on the hollow groove by the rubber bearing device, the stepped aluminum alloy plate is fixed on the cantilever beam sensor, and the friction force on the surface of rubber during testing is transmitted to the stepped aluminum alloy plate and is recorded by the cantilever beam sensor; and arranging the high-speed camera below the organic glass plate to record the surface change of the rubber block in real time.
2. The rubber material surface friction performance testing device according to claim 1, characterized in that: the bearing device for bearing the rubber is arranged on a double-guide-rail sliding rail which is arranged on the base.
3. The rubber material surface friction performance testing device according to claim 1, characterized in that: the speed power driving device drives the bearing device bearing the rubber to move through the driving connecting device.
4. The rubber material surface friction performance testing device according to claim 1, characterized in that: the pressure applying device has a lifting table for adjusting the pressure applied to the rubber.
5. The rubber material surface friction performance testing device according to claim 1, characterized in that: the pressure applying device is provided with a pulling pressure sensor, a glass hemisphere is fixed on the pulling pressure sensor, the glass hemisphere is placed on the rubber block, and the pressure applied to the rubber is detected through the pulling pressure sensor.
6. A method for testing the surface friction performance of a rubber material is characterized by comprising the following steps: the rubber material surface friction performance testing device of any one of claims 1 to 5 is used for testing,
adjusting the pressure applied to the rubber block to be tested through a pressure applying device, and setting a tension pressure sensor to detect the pressure applied to the rubber block;
the speed power driving device drives the bearing device bearing the rubber to move, so as to drive the rubber block to move;
arranging a cantilever beam sensor to record the friction force on the rubber surface in real time;
the surface changes of the rubber blocks are recorded in real time by a high-speed camera.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810396062.7A CN108548776B (en) | 2018-04-27 | 2018-04-27 | Rubber material surface friction performance testing device |
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| CN201810396062.7A CN108548776B (en) | 2018-04-27 | 2018-04-27 | Rubber material surface friction performance testing device |
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| CN108548776A CN108548776A (en) | 2018-09-18 |
| CN108548776B true CN108548776B (en) | 2020-04-24 |
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| CN110132740B (en) * | 2019-06-04 | 2024-05-24 | 浙江大学 | Device for rapidly judging mechanical properties of bulk magnesium alloy in batches |
| CN110763585A (en) * | 2019-12-04 | 2020-02-07 | 吉林大学 | Rotation type mechanical friction interface normal position information acquisition device |
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| CN110726664A (en) * | 2019-12-04 | 2020-01-24 | 吉林大学 | Reciprocating type mechanical friction interface in-situ information acquisition device |
| CN111638126A (en) * | 2020-05-20 | 2020-09-08 | 哈尔滨工业大学 | Experimental device for testing friction self-excited vibration of rubber material |
| CN111855235A (en) * | 2020-06-11 | 2020-10-30 | 合肥海川汽车部件***有限公司 | Automobile tire burst test device |
| CN112362575B (en) * | 2020-11-03 | 2023-09-29 | 江苏云睿汽车电器***有限公司 | Windshield wiper adhesive tape friction characteristic measurement platform |
| CN113188788A (en) * | 2021-06-10 | 2021-07-30 | 郑州轻工业大学 | Friction condition analysis test device for robot gripper during rapid grabbing |
| CN113484507B (en) * | 2021-06-29 | 2022-11-29 | 长春工业大学 | Device and method for testing strain distribution and dynamic slip rate of tread of rolling tire |
| CN117775285B (en) * | 2024-02-27 | 2024-05-17 | 四川省天域航通科技有限公司 | Cargo ejecting device for fixed wing unmanned aerial vehicle |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07325027A (en) * | 1994-05-31 | 1995-12-12 | Sony Corp | Friction coefficient measuring apparatus |
| GB2329712B (en) * | 1997-09-27 | 2001-10-24 | Ferodo Ltd | Measurement of surface wear |
| KR20120097645A (en) * | 2011-02-25 | 2012-09-05 | 한국산업안전보건공단 | Portable apparatus for measuring slippage |
| CN202433272U (en) * | 2011-12-27 | 2012-09-12 | 江门市本和机车配件实业有限公司 | Friction and wear tester for high temperature surface of metal-rubber composite sealing plate |
| CN202631407U (en) * | 2012-06-28 | 2012-12-26 | 南京金三力橡塑有限公司 | Testing device for friction coefficient of vulcanized rubber and thin plate |
| CN103954556B (en) * | 2014-04-11 | 2016-04-27 | 嘉兴职业技术学院 | One is aluminized PVDC adhesion of thin film detector |
| CN104777094B (en) * | 2015-04-10 | 2018-04-20 | 清华大学 | Rubber friction performance test experimental apparatus |
| CN208580017U (en) * | 2018-04-27 | 2019-03-05 | 哈尔滨工大泰铭科技有限公司 | A kind of rubber material surface friction property test device |
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Address after: Room 603, science and Technology Park building, Harbin University of technology, no.434, youyou street, Nangang District, Harbin City, Heilongjiang Province, 150001 Patentee after: Harbin Taiming Technology Co.,Ltd. Address before: Room 603, science and Technology Park building, Harbin University of technology, no.434, youyou street, Nangang District, Harbin City, Heilongjiang Province, 150001 Patentee before: TAIMING TECHNOLOGY CO.,LTD. HARBIN INSTITUTE OF TECHNOLOGY |