CN111780996A - Tire comprehensive wear performance test system - Google Patents
Tire comprehensive wear performance test system Download PDFInfo
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- CN111780996A CN111780996A CN202010782277.XA CN202010782277A CN111780996A CN 111780996 A CN111780996 A CN 111780996A CN 202010782277 A CN202010782277 A CN 202010782277A CN 111780996 A CN111780996 A CN 111780996A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/02—Tyres
- G01M17/021—Tyre supporting devices, e.g. chucks
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Abstract
The invention discloses a tire comprehensive wear performance testing system, which comprises a testing chamber; the bottom of the inner cavity of the test chamber is provided with a simulated pavement; the top of the test chamber is provided with a pressure applying device, a tire for test is rotatably arranged on the pressure applying device, and the pressure applying device applies pressure to the tire to enable the tire to be abutted against a simulated road surface; the pressing device is also provided with a driving system, and the driving system drives the tire to rotate so as to test the wear resistance of the tire; the device also comprises a turning angle adjusting mechanism, wherein the turning angle adjusting mechanism drives the tire to rotate by a corresponding angle to simulate the tire to turn; the simulated pavement comprises a chain plate conveyor, and a brake mechanism is further mounted on the chain plate conveyor and used for testing the friction performance between the tire and the simulated pavement when the tire slips; the test chamber is also provided with a heating device, a refrigerating device and a spraying device. The invention provides a tire comprehensive wear performance testing system which is used for testing the wear resistance of a tire.
Description
Technical Field
The invention relates to the technical field of automobile part testing, in particular to a tire comprehensive wear performance testing system.
Background
The tire is one of the most important components on the automobile, and the tire mainly plays the following roles: supporting the whole weight of the vehicle and bearing the load of the vehicle; the traction and braking torque force is transmitted, and the adhesion between the wheels and the road surface is ensured; the shock and impact force of the automobile during running are reduced and absorbed, the parts of the automobile are prevented from being violently shocked and early damaged, the high-speed performance of the automobile is adapted, the noise during running is reduced, and the running safety, the operation stability, the comfort and the energy-saving economy are ensured.
The wear of the tire is one of the main factors affecting the service life of the tire, and the tire after being worn can affect the adhesion between the tire and the road surface, thereby affecting the safety of driving. If the wear resistance of the tire is not good, the user can frequently replace the tire, and the economical efficiency of the automobile is affected.
The factors affecting the wear resistance of the tire include the material of the tire, the size of the tire, the pressure to which the tire is subjected, the shape of the tire surface, the quality of the running surface, and the like.
Some automobiles are often used in high-temperature and low-temperature environments, the high temperature and the low temperature have great influence on the service life of the tire, and other automobiles often work in saline-alkali soil and acid environments, so that the saline-alkali soil and the acid environments have great influence on the corrosion resistance of the tire and influence on the service life of the tire.
Therefore, the prior art is deficient in the lack of a tire comprehensive performance device for the wear resistance test of tires, and the wear resistance test of tires in high and low temperature environments and corrosive environments.
Disclosure of Invention
In view of at least one of the drawbacks of the prior art, it is an object of the present invention to provide a tire comprehensive wear performance test system for wear resistance testing of tires, and wear resistance testing of tires in high and low temperature environments and corrosive environments.
In order to achieve the purpose, the invention adopts the following technical scheme: the key point of the tire comprehensive wear performance testing system is that the tire comprehensive wear performance testing system comprises a testing chamber, wherein a door is arranged on one side wall of the testing chamber; the bottom of the inner cavity of the test chamber is provided with a simulated pavement; the top of the test chamber is provided with a pressing device, a tire for test is rotatably arranged on the pressing device, the tire is positioned in the test chamber and above the simulated road surface, and the pressing device applies pressure to the tire to enable the tire to abut against the simulated road surface; the pressing device is also provided with a driving system, and the driving system drives the tire to rotate so as to test the wear resistance of the tire;
the device also comprises a turning angle adjusting mechanism which is arranged at the top of the inner cavity of the test chamber and drives the tire to rotate by a corresponding angle to simulate the tire to turn;
the simulated pavement comprises a chain plate conveyor, pavement units are detachably mounted on chain plates of the chain plate conveyor, and a band-type brake mechanism is further mounted on the chain plate conveyor and can be used for holding chain wheels of the chain plate conveyor and testing the wear resistance between the chain wheels and the simulated pavement when tires slip;
the test chamber is also provided with a heating device, a refrigerating device and a spraying device, and the heating device is used for heating the test chamber to reach a set heating test temperature; the refrigerating device is used for cooling the test chamber to a set cooling test temperature; the spraying device is used for spraying corrosive solution to the tire to test the abrasion resistance of the tire in a corrosive environment.
Through the structural arrangement, a tester enters the test chamber from the door, and the tire to be tested is rotatably mounted on the pressure applying device, and the pressure applying device applies pressure to simulate the weight borne by the tire during running so as to enable the tire to abut against the simulated road surface; the surface of the simulated road surface can be set to be a road surface with certain roughness according to design requirements, and the driving system can drive the tire to rotate, so that the tire runs on the simulated road surface. The wear resistance of the tire is judged by detecting the amount of wear of the tire over a prescribed time. The smaller the amount of wear, the higher the wear resistance.
Because the tire still needs to turn frequently in the running process, the turning angle adjusting mechanism is arranged and drives the tire to rotate by a corresponding angle to simulate the tire to turn;
the wear experienced by the tire during a turn is detected.
The simulation road surface includes drag chain conveyor, and detachably installs the road surface unit on drag chain conveyor's the link joint, and drag chain conveyor adopts ripe technique, and the link joint can walk on drag chain conveyor for the simulation road surface, road surface unit can set to the road surface of certain roughness according to the design needs, and detachably installs on the link joint, can change after wearing and tearing.
When a tire of a vehicle runs on a muddy road surface, the tire often slips, and the contracting brake mechanism can hold a chain wheel of the chain plate conveyor to stop the running of the road surface unit and is used for testing the wear resistance between the tire and a simulated road surface when the tire slips; the above structure is used for observing the wear condition when the tire slips.
When the wear resistance of the tire in a high-temperature environment needs to be tested, the door is closed, and the heating device can be used for heating the test chamber to reach the set heating test temperature; the wear condition of the tire in a high-temperature environment was observed.
When the wear resistance of the tire in a low-temperature environment needs to be tested, the door is closed, and the cooling test chamber can be cooled by the refrigerating device to reach the set cooling test temperature; the wear condition of the tire in a low-temperature environment was observed.
When the wear resistance of the tire in a corrosive environment needs to be tested, the door is closed, and a corrosive acid-base solution can be sprayed to the tire through the spraying device; the wear of the tire in a corrosive environment was observed.
The pressure applying device comprises a first hydraulic cylinder, a force measuring device, a chassis and a suspension system; a cylinder barrel of a first hydraulic cylinder is vertically arranged in the center of the top surface of the test chamber and is connected with a hydraulic system, a piston rod of the first hydraulic cylinder penetrates into an inner cavity of the test chamber through a through hole in the top surface of the test chamber and is connected with the force measuring device, the force measuring device is connected with a chassis, the bottom of the chassis is provided with a suspension system, the suspension system is rotatably provided with a wheel shaft, and tires are fixedly arranged at two ends of the wheel shaft;
the turning angle adjusting mechanism comprises a stepping motor DJ1, and the stepping motor DJ1 is fixedly arranged at the top of the inner cavity of the test chamber; the stepping motor DJ1 is connected with a computer through a PLC controller; the stepping motor DJ1 drives the piston rod of the first hydraulic cylinder to rotate through a spur gear speed reducing mechanism.
The piston rod of the first hydraulic cylinder can be driven to extend, retract and stop through a hydraulic system, so that proper pressure is applied to the tire, and a force measuring device such as a force measuring instrument can be used for observing the magnitude of the applied pressure. The chassis plays a role in connecting and fixing the suspension system and the force measuring device, the suspension system is provided with a plate spring and used for buffering vibration in the running process of the tire, the suspension system is rotatably provided with a wheel shaft, and a flange plate is fixedly arranged on the wheel shaft, so that the tire is convenient to install.
The computer can control the piston rod of the first hydraulic cylinder to rotate by a corresponding angle through the stepping motor DJ1, so that the tire is controlled to rotate by a corresponding angle; simulating the friction experienced by the tire during cornering.
The abrasion of the tire during turning is conveniently tested.
The hydraulic system comprises a hydraulic system, a force measuring device and a first hydraulic cylinder, wherein the force measuring device is a force sensor, the force sensor is connected with a computer through a PLC (programmable logic controller), the hydraulic system comprises an oil pump, the inlet of the oil pump is connected with an oil tank through an oil filter, and the outlet of the oil pump is connected with the first hydraulic cylinder through a first three-position four-way electromagnetic reversing valve; the outlet of the oil pump is also connected with an oil tank through an overflow valve;
the hydraulic system controls the first hydraulic cylinder to work through a first three-position four-way electromagnetic directional valve; the first three-position four-way electromagnetic directional valve is connected with a computer through a PLC controller.
Through the structure, a tester can set the test pressure of the tire through a computer and control the first three-position four-way electromagnetic directional valve to work through the PLC, so that the piston rod of the hydraulic cylinder is controlled to extend, retract and stop. The force sensor is connected with a computer through a PLC controller, so that the pressure on the tire can be conveniently detected, and a piston rod of the first hydraulic cylinder is controlled to extend out at the beginning; when the set tire testing pressure is reached, the computer controls the piston rod to stop. And after the test is finished, controlling the piston rod of the first hydraulic cylinder to retract.
The driving system comprises a hydraulic motor, the hydraulic motor is arranged on the suspension system, an outlet of the oil pump is connected with a second three-position four-way electromagnetic reversing valve through a throttle valve, and the second three-position four-way electromagnetic reversing valve is connected with the hydraulic motor;
the hydraulic system controls the hydraulic motor to work through a second three-position four-way electromagnetic directional valve; the hydraulic motor drives the tyre to rotate, and the second three-position four-way electromagnetic directional valve is connected with a computer through a PLC controller.
Through the structure, the throttle valve is used for adjusting the rotating speed of the hydraulic motor so as to adjust the rotating speed of the tire, and a tester controls the second three-position four-way electromagnetic reversing valve through a computer so as to control the hydraulic motor to rotate forwards, reversely or stop.
The hydraulic motor is adopted to drive the tire to rotate, and when the tire is tested to slip, the hydraulic motor cannot be burnt out due to overload like the motor.
Preferably, the hydraulic motor is further connected with a speed sensor, the speed sensor is connected with a computer through a single chip microcomputer, and the rotating speed of the tire can be observed conveniently through the computer.
The chain plate conveyor comprises a rack, the rack is fixedly connected with the bottom of an inner cavity of the test chamber, two chain wheels are rotatably mounted on the rack, chains are wound on the two chain wheels, chain plates are mounted on the chains, and the chain wheels are rotatably mounted on the rack through rotating shafts;
the band-type brake mechanism comprises a second hydraulic cylinder, a tightening belt, a tension spring and a friction wheel, wherein the friction wheel is fixedly sleeved on the rotating shaft, the second hydraulic cylinder is fixed on the rack, a piston rod of the second hydraulic cylinder is connected with one end of the tightening belt, the other end of the tightening belt bypasses the friction wheel and then is connected with one end of the tension spring, and the other end of the tension spring is fixed on the rack.
Through foretell structure setting, when the skid wear of test tire, the piston rod withdrawal of tester control second pneumatic cylinder makes and holds the area tightly and hold the friction pulley, makes the sprocket stall to control road surface unit and stop walking. The tire slipped on the road surface unit, and the wear of the tire at the time of the slip was observed.
When the skid abrasion of the tire is not tested, a tester controls the piston rod of the second hydraulic cylinder to extend out, so that the clamping belt releases the friction wheel, and the chain wheel continues to rotate.
The outlet of the oil pump is connected with a second hydraulic cylinder through a third three-position four-way electromagnetic directional valve;
the hydraulic system controls the second hydraulic cylinder to work through a third three-position four-way electromagnetic directional valve; the third three-position four-way electromagnetic directional valve is connected with a computer through a PLC controller.
Through the structural arrangement, a tester controls the third three-position four-way electromagnetic directional valve to work through a computer, so that the piston rod of the second hydraulic cylinder is controlled to extend, retract or stop.
Heating device includes electric heating pipe, temperature sensor, relay J1, singlechip, and temperature sensor is fixed to be set up in the test chamber, and the singlechip passes through temperature sensor and acquires the temperature in the test chamber, and the coil through switch triode control relay J1 is switched on and off to the singlechip, and relay J1's normally closed switch control electric heating pipe switches on and off.
The single chip microcomputer is connected with a keyboard and used for inputting the heating temperature of the test chamber, the single chip microcomputer controls the coil of the relay J1 to be electrified through the switching triode, the normally closed switch of the relay J1 is closed, the electric heating pipe is controlled to be electrified, the test chamber is heated, the single chip microcomputer detects the temperature in the test chamber through the temperature sensor, when the input heating temperature is reached, the electric heating pipe is controlled to be powered off, and after the temperature in the test chamber is reduced, the single chip microcomputer controls the electric heating pipe to be electrified and heated.
The spraying device comprises a solution tank, a water pump and a spray pipe, wherein the top of the solution tank is communicated with the bottom of an inner cavity of the testing chamber through a water pipe, an inlet of the water pump is communicated with the bottom of the solution tank, an outlet of the water pump is connected with one end of the spray pipe, and the other end of the spray pipe extends into the testing chamber to be aligned with the tire.
The solution tank is used for adding a corrosive acid solution or an alkaline solution, the door is closed, the water pump is powered on, the water pump pumps the corrosive solution in the solution tank and sprays the corrosive solution through the spray pipe to the tire, and therefore the abrasion performance of the tire in a corrosive acid environment or an alkaline environment is tested.
The comprehensive wear performance testing system for the tire is used for testing the wear resistance of the tire and the wear resistance of the tire in high and low temperature environments and corrosive environments.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a circuit diagram of a PLC controller;
FIG. 4 is a block diagram of a hydraulic system;
FIG. 5 is a circuit block diagram of the present invention;
FIG. 6 is a circuit block diagram of a heating apparatus;
FIG. 7 is a circuit diagram of a heating device;
FIG. 8 is a view showing the configuration of a friction wheel;
FIG. 9 is a structural view of a pavement element;
fig. 10 is a top view of fig. 9.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
As shown in fig. 1-10, a tire comprehensive wear performance testing system comprises a testing chamber 1, wherein a door 11 is arranged on one side wall of the testing chamber 1; the bottom of the inner cavity of the test chamber 1 is provided with a simulated pavement 2; a pressure applying device 3 is installed at the top of the test chamber 1, a tire 1a for test is rotatably installed on the pressure applying device 3, the tire 1a is positioned in the test chamber 1 and above the simulated road surface 2, and the pressure applying device 3 applies pressure to the tire 1a to enable the tire 1a to abut against the simulated road surface 2; the pressing device 3 is also provided with a driving system 4, and the driving system 4 drives the tire 1a to rotate so as to test the wear resistance of the tire 1 a;
the test chamber also comprises a turning angle adjusting mechanism 10, wherein the turning angle adjusting mechanism 10 is arranged at the top of the inner cavity of the test chamber 1 and drives the tire 1a to rotate by a corresponding angle to simulate the turning of the tire 1 a;
the simulated pavement 2 comprises a chain plate conveyor 21, a pavement unit 22 is detachably mounted on a chain plate 211 of the chain plate conveyor 21, a band-type brake mechanism 23 is further mounted on the chain plate conveyor 21, and the band-type brake mechanism 23 can be used for holding a chain wheel 212 of the chain plate conveyor 21 and testing the wear resistance between the tire 1a and the simulated pavement 2 when slipping;
the testing chamber 1 is also provided with a heating device 7, a refrigerating device 8 and a spraying device 9, wherein the heating device 7 is used for heating the testing chamber 1 to a set heating testing temperature; the refrigerating device 8 is used for cooling the test chamber 1 to a set cooling test temperature; the spraying device 9 is used for spraying a corrosive solution to the tire 1a to test the abrasion resistance of the tire 1a in a corrosive environment.
By testing the wear performance of the tire 1a, the tester can judge the quality of the newly designed and produced tire 1 a.
Refrigerating plant 8 adopts current mature technology, including compressor, evaporimeter, condenser etc. and the evaporimeter sets up in test room 1, absorbs the heat in the test room 1, and compressor and condenser etc. set up outside test room 1, and its detailed structure is no longer repeated.
A refrigeration device 8 is provided at the top of the test chamber 1.
Through the structural arrangement, a tester enters the test chamber 1 from the door 11, and mounts the tire 1a to be tested on the pressure applying device 3 in a rotating way, and the pressure applying device 3 applies pressure to simulate the weight borne by the tire during running so as to enable the tire 1a to abut against the simulated road surface 2; the surface of the simulated road surface 2 can be set to be a road surface with certain roughness according to design requirements, and the driving system 4 can drive the tire 1a to rotate, so that the tire 1a runs on the simulated road surface 2. The wear resistance of the tire is determined by detecting the amount of wear of the tire 1a over a prescribed time. The smaller the amount of wear, the higher the wear resistance.
As shown in fig. 1, since the tire 1a is still frequently turned during running, by providing the turning angle adjusting mechanism 10, the turning angle adjusting mechanism 10 drives the tire 1a to turn by a corresponding angle to simulate the tire 1a to turn;
the wear received by the tire 1a in a turn is detected.
As shown in fig. 1 and 2, the simulated pavement 2 comprises a chain conveyor 21, a pavement unit 22 is detachably mounted on a chain plate 211 of the chain conveyor 21, the chain conveyor 21 adopts mature technology, the chain plate 211 can run on the chain conveyor 21 for simulating the pavement, and the pavement unit 22 can be set to be a pavement with certain roughness according to design requirements, is detachably mounted on the chain plate 211 and can be replaced after being worn.
When the tire 1a of the vehicle runs on a muddy road surface, a slipping phenomenon often occurs, and the contracting brake mechanism 23 can hold the chain wheel 212 of the chain plate conveyor 21 to stop the running of the road surface unit 22, so as to test the wear resistance between the tire 1a and the simulated road surface 2 when the tire 1a slips; the above structure is used to observe the wear condition of the tire 1a when slipping.
When the wear resistance of the tire 1a in a high-temperature environment needs to be tested, the door 11 is closed, and the test chamber 1 can be heated by the heating device 7 to reach a set heating test temperature; the wear condition of the tire 1a in a high-temperature environment was observed.
When the wear resistance of the tire 1a in a low-temperature environment needs to be tested, the door 11 is closed, and the test chamber 1 can be cooled by the refrigerating device 8 to reach a set cooling test temperature; the wear condition of the tire 1a in a low-temperature environment was observed.
When the abrasion resistance of the tire 1a under the corrosive environment needs to be tested, the door 11 is closed, and a corrosive acid-base solution can be sprayed to the tire 1a through the spraying device 9; the wear condition of the tire 1a under a corrosive environment was observed.
As shown in fig. 1, the pressing device 3 comprises a first hydraulic cylinder 31, a force measuring device 32, a chassis 33 and a suspension system 34; the cylinder 311 of the first hydraulic cylinder 31 is vertically installed in the center of the top surface of the test chamber 1 and connected with a hydraulic system 35, the piston rod 312 of the first hydraulic cylinder 31 penetrates through the inner cavity of the test chamber 1 through a through hole in the top surface of the test chamber 1 and is connected with the force measuring device 32, the force measuring device 32 is connected with a chassis 33, the bottom of the chassis 33 is provided with a suspension system 34, the suspension system 34 is rotatably provided with a wheel shaft 341, and two ends of the wheel shaft 341 are fixedly provided with tires 1 a;
the turning angle adjusting mechanism 10 comprises a stepping motor DJ1, and the stepping motor DJ1 is fixedly arranged at the top of the inner cavity of the test chamber 1; the stepping motor DJ1 is connected with a computer 6 through a PLC 5; the stepping motor DJ1 rotationally drives the piston rod 312 of the first hydraulic cylinder 31 via the spur gear reduction mechanism 101.
The turning angle adjusting mechanism 10 is only a preferred embodiment, and other turning angle adjusting mechanisms 10 may also be adopted, such as a turning steering wheel, the steering wheel is fixedly sleeved on the lower end of the piston rod 312 of the first hydraulic cylinder 31, the steering wheel is provided with a circle of angle adjusting holes, a fixing rod is detachably arranged on the top of the testing chamber 1, and the lower end of the fixing rod is inserted into the corresponding angle adjusting hole, so that the piston rod 312 of the first hydraulic cylinder 31 can be controlled to rotate by a corresponding angle.
The piston rod 312 of the first hydraulic cylinder 31 can be driven to extend, retract and stop by the hydraulic system 35 so as to apply appropriate pressure to the tire 1a, and the force measuring device 32 such as a force measuring instrument or the like can be used to observe the magnitude of the applied pressure. The chassis 33 is connected and fixed between the suspension system 34 and the force measuring device 32, the suspension system 34 is provided with a plate spring for buffering the vibration of the tire 1a in the running process, the suspension system 34 is rotatably provided with a wheel shaft 341, and a flange is fixedly arranged on the wheel shaft 341 to facilitate the installation of the tire 1 a.
The suspension system 34 is provided with a leaf spring, the upper end of which is connected with the chassis 33 by a fastener, the lower end of which is connected with a fixed sleeve by a fastener, and a wheel axle 341 is rotatably penetrated in the fixed sleeve.
The suspension system 34 is fixedly provided with a first protective cover 3a, and the first protective cover 3a prevents acid and alkali solution from splashing on the suspension system 34 and the force sensor.
The hydraulic motor 41 is mounted on a fixed sleeve of the suspension system 34 and drives the wheel shaft 341 to rotate through a gear mechanism.
The computer 6 can control the piston rod 312 of the first hydraulic cylinder 31 to rotate by a corresponding angle through the stepping motor DJ1, so as to control the tire 1a to rotate by a corresponding angle; simulating the friction to which the tire 1a is subjected during cornering.
It is convenient to test the wear to which the tire 1a is subjected during cornering.
By adopting the spur gear speed reducing mechanism 101, the height of the spur gear fixedly sleeved on the piston rod 312 of the first hydraulic cylinder 31 is larger than the height of the spur gear fixedly sleeved on the output shaft of the stepping motor DJ1, and the piston rod 312 of the first hydraulic cylinder 31 can still keep meshing when sliding up and down, and the meshing is not influenced.
The force measuring device 32 is a force sensor, the force sensor is connected with the computer 6 through the PLC 5, the hydraulic system 35 comprises an oil pump 351, the inlet of the oil pump 351 is connected with an oil tank 353 through an oil filter 352, and the outlet of the oil pump 351 is connected with the first hydraulic cylinder 31 through a first three-position four-way electromagnetic reversing valve 354; the outlet of oil pump 351 is also connected to tank 353 via relief valve 355;
the hydraulic system 35 controls the first hydraulic cylinder 31 to work through a first three-position four-way electromagnetic directional valve 354; the first three-position four-way electromagnetic directional valve 354 is connected with a computer 6 through a PLC (programmable logic controller) 5.
The force sensor adopts an EVT-14TP force sensor;
measuring range: 0-1 t-2 t-3 t-5 t-8 t-12 t-16 t-20 t-35 t-50 t-60 t-75 t.
Through the structural arrangement, a tester can set the test pressure of the tire 1a through the computer 6 and control the first three-position four-way electromagnetic directional valve 354 to work through the PLC 5, so as to control the piston rod 312 of the hydraulic cylinder 31 to extend, retract and stop. The force sensor is connected with a computer 6 through a PLC (programmable logic controller) 5, so that the pressure on the tire 1a can be conveniently detected, and a piston rod 312 of the first hydraulic cylinder 31 is controlled to extend out at the beginning; when the set tire 1a test pressure is reached, the computer 6 controls the piston rod 312 to stop. The test is completed and the piston rod 312 of the first hydraulic cylinder 31 is controlled to retract.
The driving system 4 comprises a hydraulic motor 41, the hydraulic motor 41 is installed on the suspension system 34, the outlet of an oil pump 351 is connected with a second three-position four-way electromagnetic directional valve 357 through a throttle valve 356, and the second three-position four-way electromagnetic directional valve 357 is connected with the hydraulic motor 41;
the hydraulic system 35 controls the hydraulic motor 41 to work through a second three-position four-way electromagnetic directional valve 357; the hydraulic motor 41 drives the tire 1a to rotate, and the second three-position four-way electromagnetic directional valve 357 is connected with the computer 6 through the PLC 5.
Through the above-mentioned structural arrangement, the throttle valve 356 is used to adjust the rotation speed of the hydraulic motor 41, thereby adjusting the rotation speed of the tire 1a, and the tester controls the second three-position four-way electromagnetic directional valve 357 through the computer 6, thereby controlling the hydraulic motor 41 to rotate forward, backward, or stop.
The hydraulic motor 41 is adopted to drive the tire 1a to rotate, and when the tire 1a is tested to slip, the hydraulic motor 41 can not be burnt out due to overload like an electric motor.
Preferably, the hydraulic motor 41 is further connected with a speed sensor, and the speed sensor is connected with the computer 6 through a single chip microcomputer, so that the rotating speed of the tire 1a can be conveniently observed through the computer 6.
The chain plate conveyor 21 comprises a rack 213, the rack 213 is fixedly connected with the bottom of the inner cavity of the test chamber 1, two chain wheels 212 are rotatably mounted on the rack 213, a chain is wound on the two chain wheels 212, a chain plate 211 is mounted on the chain, and the chain wheels 212 are rotatably mounted on the rack 213 through a rotating shaft 214;
the band-type brake mechanism 23 comprises a second hydraulic cylinder 231, a band-type tightening belt 232, a tension spring 233 and a friction wheel 234, wherein the friction wheel 234 is fixedly sleeved on the rotating shaft 214, the second hydraulic cylinder 231 is fixed on the frame 213, a piston rod of the second hydraulic cylinder 231 is connected with one end of the band-type tightening belt 232, the other end of the band-type tightening belt 232 is connected with one end of the tension spring 233 after bypassing the friction wheel 234, and the other end of the tension spring 233 is fixed on the frame 213.
As shown in fig. 8, the surface of the friction wheel 234 is provided with a plurality of indents 2341 or protrusions to increase the frictional force with the tightening belt 232. The dimple 2341 or protrusion is "X" shaped.
With the above arrangement, when testing the skid wear of the tire 1a, the tester controls the retraction of the piston rod of the second hydraulic cylinder 231, and causes the tightening belt 232 to tighten the friction wheel 234, and the sprocket 212 to stop rotating, thereby controlling the road surface unit 22 to stop traveling. The tire 1a slips on the road surface unit 22, and wear of the tire 1a at the time of the slip is observed.
When the tire 1a is not being tested for skid wear, the tester controls the piston rod of the second hydraulic cylinder 231 to extend, so that the tightening belt 232 releases the friction wheel 234, and the sprocket 212 continues to rotate.
The outlet of the oil pump 351 is connected with the second hydraulic cylinder 231 through a third three-position four-way electromagnetic directional valve 358;
the hydraulic system 35 controls the second hydraulic cylinder 231 to work through a third three-position four-way electromagnetic directional valve 358; the third three-position four-way electromagnetic directional valve 358 is connected with a computer 6 through a PLC 5.
Through the structural arrangement, a tester controls the third three-position four-way electromagnetic directional valve 358 to work through the computer 6, so that the piston rod of the second hydraulic cylinder 231 is controlled to extend, retract or stop.
The heating device 7 comprises an electric heating pipe 71, a temperature sensor 72, a relay J1 and a single chip microcomputer, wherein the temperature sensor 72 is fixedly arranged in the test chamber 1, the single chip microcomputer 74 obtains the temperature in the test chamber 1 through the temperature sensor 72, the single chip microcomputer 74 controls the on-off of a coil of the relay J1 through a switch triode, and a normally closed switch of the relay J1 controls the on-off of the electric heating pipe 71.
The electric heating tube 71 is fixedly provided with a second shield 73, and the second shield 73 prevents acid-base solution from splashing on the electric heating tube 71. A heating resistance wire is arranged in the electric heating tube 71.
The single chip microcomputer 74 is connected with a keyboard and used for inputting the heating temperature of the test chamber 1, the single chip microcomputer 74 controls the coil of the relay J1 to be electrified through a switching triode, the normally closed switch of the relay J1 is closed to control the electric heating pipe 71 to be electrified, the test chamber 1 is heated, the single chip microcomputer 74 detects the temperature in the test chamber 1 through the temperature sensor 72, when the input heating temperature is reached, the electric heating pipe 71 is controlled to be powered off, and after the temperature in the test chamber 1 is reduced, the single chip microcomputer 74 controls the electric heating pipe 71 to be electrified and heated.
The spraying device 9 comprises a solution tank 91, a water pump 92 and a spray pipe 93, wherein the top of the solution tank 91 is communicated with the bottom of an inner cavity of the test chamber 1 through a water pipe 911, an inlet of the water pump 92 is communicated with the bottom of the solution tank 91, an outlet of the water pump 92 is connected with one end of the spray pipe 93, and the other end of the spray pipe 93 extends into the test chamber 1 to be aligned with the tire 1 a.
The solution tank 91 is used for adding corrosive acid solution or alkaline solution, the door 11 is closed, the water pump 92 is powered on, the water pump 92 pumps the corrosive solution in the solution tank 91 and sprays the corrosive solution aiming at the tire 1a through the spray pipe 93, and therefore the abrasion performance of the tire 1a in a corrosive acid environment or an alkaline environment is tested.
The scraper chain conveyor 21 is provided with scraper chains 211 for simulating road surfaces, and the road surface units 22 are used for simulating road surfaces with different roughness. The chain scraper conveyor 21 is made of a conventional and well-established technology, and the structure thereof is not described in detail.
The pavement unit 22 comprises an upper template 221, a lower template 222, a height adjusting partition 223 and an X-shaped male die 224, wherein the height adjusting partition 223 is arranged between the upper template 221 and the lower template 222 and is used for adjusting the distance between the upper template 221 and the lower template 222, the upper template 221 is provided with an X-shaped through hole corresponding to the male die 224, one end of the male die 224 is fixedly connected with the lower template 222, and the other end of the male die 224 is inserted into the X-shaped through hole of the upper template 221 or extends out of the X-shaped through hole; the pavement unit 22 is detachably connected to the link plate 211 by a bolt 225.
Through the structural arrangement, as long as the height adjusting partition 223 with different heights is adopted, the distance between the upper template 221 and the lower template 222 is changed, and the heights of the other ends of the male dies 224 extending out of the upper template 221 are different, so that the road surfaces with different roughness can be simulated.
The other end of the male mold 224 may be flush with the upper surface of the upper mold plate 221, and the height of the height-adjusting spacer 223 may be lowered so as to protrude from the upper surface of the upper mold plate 221.
After the male mold 224 is worn, the height of the height adjusting partition 223 can be adjusted by adjusting the height adjusting partition 223, for example, the height of the height adjusting partition 223 is worn by 2 mm, so that the height adjusting partition 223 is lowered by 2 mm, and the protruding height of the male mold 224 is kept unchanged.
The height adjustment of the height adjustment partition 223 may be formed by stacking a plurality of plates, and the height adjustment may be performed by reducing the number of the plates, or may be performed by selecting a plate having a suitable height when used.
The height adjusting partitions 223 may be a plurality of partitions in the length direction, and are inserted between the upper template 221 and the lower template 222; the upper and lower mold plates 221 and 222 may be connected to each other in the longitudinal direction.
The first three-position four-way electromagnetic directional valve 354, the second three-position four-way electromagnetic directional valve 357 and the third three-position four-way electromagnetic directional valve 358 are all O-shaped three-position four-way electromagnetic directional valves.
The wall of the test chamber 1 is provided with an observation window 12 for observing the test conditions.
Finally, it is noted that: the above-mentioned embodiments are only examples of the present invention, and it is a matter of course that those skilled in the art can make modifications and variations to the present invention, and it is considered that the present invention is protected by the modifications and variations if they are within the scope of the claims of the present invention and their equivalents.
Claims (9)
1. The comprehensive wear performance testing system for the tire is characterized by comprising a testing chamber (1), wherein a door (11) is arranged on one side wall of the testing chamber (1); the bottom of the inner cavity of the test chamber (1) is provided with a simulated pavement (2); the top of the test chamber (1) is provided with a pressure applying device (3), a tire (1a) for testing is rotatably arranged on the pressure applying device (3), the tire (1a) is positioned in the test chamber (1) and above the simulated road surface (2), and the pressure applying device (3) applies pressure to the tire (1a) so as to enable the tire to abut against the simulated road surface (2); the pressing device (3) is also provided with a driving system (4), and the driving system (4) drives the tire (1a) to rotate so as to test the wear resistance of the tire (1 a);
the test chamber also comprises a turning angle adjusting mechanism (10), wherein the turning angle adjusting mechanism (10) is arranged at the top of the inner cavity of the test chamber (1) and drives the tire (1a) to rotate by a corresponding angle to simulate the turning of the tire (1 a);
the simulated pavement (2) comprises a chain plate conveyor (21), pavement units (22) are detachably mounted on a chain plate (211) of the chain plate conveyor (21), a band-type brake mechanism (23) is further mounted on the chain plate conveyor (21), and the band-type brake mechanism (23) can clamp a chain wheel (212) of the chain plate conveyor (21) and is used for testing the wear resistance between the tire (1a) and the simulated pavement (2) when the tire skids;
the testing chamber (1) is also provided with a heating device (7), a refrigerating device (8) and a spraying device (9), wherein the heating device (7) is used for heating the testing chamber (1) to a set heating testing temperature; the refrigerating device (8) is used for cooling the test chamber (1) to a set cooling test temperature; the spraying device (9) is used for spraying corrosive solution to the tire (1a) to test the wear resistance of the tire (1a) in a corrosive environment.
2. The tire integrated wear performance testing system of claim 1, wherein: the pressing device (3) comprises a first hydraulic cylinder (31), a force measuring device (32), a chassis (33) and a suspension system (34); a cylinder barrel (311) of a first hydraulic cylinder (31) is vertically installed in the center of the top surface of a test chamber (1) and is connected with a hydraulic system (35), a piston rod (312) of the first hydraulic cylinder (31) penetrates into the inner cavity of the test chamber (1) through a through hole in the top surface of the test chamber (1) and is connected with a force measuring device (32), the force measuring device (32) is connected with a chassis (33), a suspension system (34) is installed at the bottom of the chassis (33), a wheel shaft (341) is installed in the suspension system (34) in a rotating mode, and tires (1a) are fixedly installed at two ends of the wheel shaft;
the turning angle adjusting mechanism (10) comprises a stepping motor DJ1, and the stepping motor DJ1 is fixedly arranged at the top of the inner cavity of the test chamber (1); the stepping motor DJ1 is connected with a computer (6) through a PLC (5); the stepping motor DJ1 drives a piston rod (312) of the first hydraulic cylinder (31) to rotate through a spur gear speed reducing mechanism (101).
3. The tire integrated wear performance testing system of claim 2, wherein: the force measuring device (32) is a force sensor, the force sensor is connected with a computer (6) through a PLC (programmable logic controller) (5), the hydraulic system (35) comprises an oil pump (351), the inlet of the oil pump (351) is connected with an oil tank (353) through an oil filter (352), and the outlet of the oil pump (351) is connected with a first hydraulic cylinder (31) through a first three-position four-way electromagnetic reversing valve (354); the outlet of the oil pump (351) is also connected with an oil tank (353) through an overflow valve (355);
the hydraulic system (35) controls the first hydraulic cylinder (31) to work through a first three-position four-way electromagnetic directional valve (354); the first three-position four-way electromagnetic directional valve (354) is connected with a computer (6) through a PLC (5).
4. The tire integrity wear performance testing system of claim 3, wherein: the driving system (4) comprises a hydraulic motor (41), the hydraulic motor (41) is installed on the suspension system (34), an outlet of the oil pump (351) is connected with a second three-position four-way electromagnetic reversing valve (357) through a throttle valve (356), and the second three-position four-way electromagnetic reversing valve (357) is connected with the hydraulic motor (41);
the hydraulic system (35) controls the hydraulic motor (41) to work through a second three-position four-way electromagnetic directional valve (357); the hydraulic motor (41) drives the tire (1a) to rotate, and the second three-position four-way electromagnetic directional valve (357) is connected with a computer (6) through a PLC (5).
5. The tire integrity wear performance testing system of claim 3, wherein: the chain plate conveyor (21) comprises a rack (213), the rack (213) is fixedly connected with the bottom of an inner cavity of the test chamber (1), two chain wheels (212) are rotatably mounted on the rack (213), chains are wound on the two chain wheels (212), chain plates (211) are mounted on the chains, and the chain wheels (212) are rotatably mounted on the rack (213) through rotating shafts (214);
band-type brake mechanism (23) include second hydraulic cylinder (231), hold tightly area (232), extension spring (233), friction pulley (234) are overlapped on pivot (214) admittedly, second hydraulic cylinder (231) are fixed on frame (213), the one end of holding tightly area (232) is connected to the piston rod of second hydraulic cylinder (231), the one end of connecting extension spring (233) behind friction pulley (234) is walked around to the other end of holding tightly area (232), the other end of extension spring (233) is fixed on frame (213).
6. The tire integrity wear performance testing system of claim 5, wherein: the outlet of the oil pump (351) is connected with a second hydraulic cylinder (231) through a third three-position four-way electromagnetic directional valve (358);
the hydraulic system (35) controls the second hydraulic cylinder (231) to work through a third three-position four-way electromagnetic directional valve (358); the third three-position four-way electromagnetic directional valve (358) is connected with a computer (6) through a PLC (5).
7. The tire integrated wear performance testing system of claim 1, wherein: heating device (7) include electric heating pipe (71), temperature sensor (72), relay J1, singlechip, and temperature sensor (72) are fixed to be set up in test chamber (1), and temperature in test chamber (1) is acquireed through temperature sensor (72) in singlechip (74), and singlechip (74) are through the coil on-off of switch triode control relay J1, and the normally closed switch control electric heating pipe (71) of relay J1 is on-off.
8. The tire integrated wear performance testing system of claim 1, wherein: the spraying device (9) comprises a solution tank (91), a water pump (92) and a spray pipe (93), the top of the solution tank (91) is communicated with the bottom of an inner cavity of the testing chamber (1) through a water pipe (911), an inlet of the water pump (92) is communicated with the bottom of the solution tank (91), an outlet of the water pump (92) is connected with one end of the spray pipe (93), and the other end of the spray pipe (93) extends into the testing chamber (1) to be aligned to the tire (1 a).
9. The tire integrated wear performance testing system of claim 1, wherein: the pavement unit (22) comprises an upper template (221), a lower template (222), a height adjusting partition plate (223) and an X-shaped male die (224); the height adjusting partition plate (223) is arranged between the upper template (221) and the lower template (222) and is used for adjusting the distance between the upper template (221) and the lower template (222); the upper template (221) is provided with an X-shaped through hole corresponding to the male die (224), one end of the male die (224) is fixedly connected with the lower template (222), and the other end of the male die (224) is inserted into the X-shaped through hole of the upper template (221) or extends out of the X-shaped through hole; the pavement unit (22) is detachably connected with the chain plate (211) through a bolt (225).
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061986A (en) * | 2021-11-19 | 2022-02-18 | 青岛科技大学 | Rubber abrasion testing method |
| CN114136825A (en) * | 2022-01-29 | 2022-03-04 | 廊坊易砚领创科技有限公司 | Automobile tire abrasion resistance testing device |
| CN116930250A (en) * | 2023-09-15 | 2023-10-24 | 中路慧能检测认证科技有限公司 | Heat resistance detection device for vehicle tire |
| CN117606824A (en) * | 2024-01-19 | 2024-02-27 | 山东中亚轮胎试验场有限公司 | Wear resistance detection device for tire manufacturing |
| CN117606824B (en) * | 2024-01-19 | 2024-05-10 | 山东中亚轮胎试验场有限公司 | Wear resistance detection device for tire manufacturing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006208265A (en) * | 2005-01-31 | 2006-08-10 | Mitsubishi Heavy Ind Ltd | Flat-belt type tire testing machine and testing method |
| CN103076191A (en) * | 2013-01-10 | 2013-05-01 | 中国矿业大学 | Shock excitation abrasion tester for tyre in complex environment |
| CN107238541A (en) * | 2017-05-08 | 2017-10-10 | 华南理工大学 | A kind of accelerated loading device and method for ground surface material laboratory test |
| CN208254817U (en) * | 2018-06-08 | 2018-12-18 | 辽宁工业大学 | A kind of auto tire wear testing stand |
| CN109060383A (en) * | 2018-08-20 | 2018-12-21 | 交通运输部科学研究院 | A kind of emulation test system and method for tire and road surface interaction |
| CN208313597U (en) * | 2018-05-15 | 2019-01-01 | 深圳市三源色文化传播有限公司 | Tire road surface simulation device |
| CN210400870U (en) * | 2019-10-12 | 2020-04-24 | 广州苏试众博环境实验室有限公司 | Automobile tire composite working condition testing machine |
-
2020
- 2020-08-06 CN CN202010782277.XA patent/CN111780996B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006208265A (en) * | 2005-01-31 | 2006-08-10 | Mitsubishi Heavy Ind Ltd | Flat-belt type tire testing machine and testing method |
| CN103076191A (en) * | 2013-01-10 | 2013-05-01 | 中国矿业大学 | Shock excitation abrasion tester for tyre in complex environment |
| CN107238541A (en) * | 2017-05-08 | 2017-10-10 | 华南理工大学 | A kind of accelerated loading device and method for ground surface material laboratory test |
| CN208313597U (en) * | 2018-05-15 | 2019-01-01 | 深圳市三源色文化传播有限公司 | Tire road surface simulation device |
| CN208254817U (en) * | 2018-06-08 | 2018-12-18 | 辽宁工业大学 | A kind of auto tire wear testing stand |
| CN109060383A (en) * | 2018-08-20 | 2018-12-21 | 交通运输部科学研究院 | A kind of emulation test system and method for tire and road surface interaction |
| CN210400870U (en) * | 2019-10-12 | 2020-04-24 | 广州苏试众博环境实验室有限公司 | Automobile tire composite working condition testing machine |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114061986A (en) * | 2021-11-19 | 2022-02-18 | 青岛科技大学 | Rubber abrasion testing method |
| CN114061986B (en) * | 2021-11-19 | 2023-10-10 | 青岛科技大学 | Rubber abrasion testing method |
| CN114136825A (en) * | 2022-01-29 | 2022-03-04 | 廊坊易砚领创科技有限公司 | Automobile tire abrasion resistance testing device |
| CN114136825B (en) * | 2022-01-29 | 2022-05-24 | 廊坊易砚领创科技有限公司 | Automobile tire abrasion resistance testing device |
| CN116930250A (en) * | 2023-09-15 | 2023-10-24 | 中路慧能检测认证科技有限公司 | Heat resistance detection device for vehicle tire |
| CN116930250B (en) * | 2023-09-15 | 2024-01-02 | 中路慧能检测认证科技有限公司 | Heat resistance detection device for vehicle tire |
| CN117606824A (en) * | 2024-01-19 | 2024-02-27 | 山东中亚轮胎试验场有限公司 | Wear resistance detection device for tire manufacturing |
| CN117606824B (en) * | 2024-01-19 | 2024-05-10 | 山东中亚轮胎试验场有限公司 | Wear resistance detection device for tire manufacturing |
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