Low-noise tire and manufacturing device therefor

Abstract

A low-noise tire, comprising a tire tread (1); the tire tread (1) is circumferentially provided with variable-pitch pattern blocks (100), the variable-pitch pattern blocks (100) having a large-angle diagonal design; a closely-spaced noise-disrupting sipe design is used for water evacuation grooves of a shoulder portion of the tire tread (1). Further disclosed is a manufacturing device. Using a combined variable-pitch arrangement mode for circumferential pitch distribution on the tread enhances the handling performance while achieving the goal of noise reduction. The large-angle diagonal pattern design can increase the water evacuation efficiency and reasonably guide and control gas movement in pattern grooves, so as to achieve the purposes of water evacuation and noise reduction. Using the closely-spaced noise-disrupting sipe design for the water evacuation grooves of the shoulder portion of the tread reduces transverse flow of air at the tread so as to achieve the effect of reducing tire noise, and improves the grip so as to improve the performance of the tire on wet roads and snowy roads.

Description

Low-noise tire and processing device thereof Technical Field

[0001] The invention belongs to the field of tire processing, and in particular relates to a low-noise tire and a processing device thereof. Background Art

[0002] Low-noise tires are specifically designed to reduce vehicle noise. Noise is a major problem in urban and highway environments, causing discomfort and disturbance to drivers and the surrounding environment. Low-noise tires effectively reduce the generation and transmission of noise through improvements in tire tread design, material selection, and structural optimization. These tires not only provide a more comfortable and quiet driving experience, but also help reduce urban and highway noise pollution, improving the environment and residents' quality of life.

[0003] The length of the transverse pattern blocks in traditional tire pattern design is fixed, which leads to the interference-enhanced noise caused by the superposition of the fixed frequency noise mentioned above. At the same time, due to the transverse pattern design, the drainage and exhaust effects are poor. Water and air cannot be properly channeled during driving, resulting in loud driving noise. In addition, since the tread groove shoulders of traditional tires are open, air will flow laterally along the tread, thereby increasing the noise during driving.

[0004] Summary of the Invention

[0005] The present invention provides a low-noise tire and a processing device thereof, which are used to solve the problems raised in the above-mentioned background technology: the length of the transverse pattern blocks in the traditional tire pattern design is fixed, which leads to the interference-enhanced noise caused by the superposition of the fixed frequency noise mentioned above; at the same time, since the transverse pattern design has poor drainage and exhaust effects, water and air cannot be properly drained during driving, resulting in a large driving noise; and further, since the tread groove shoulders of traditional tires are open, air will flow laterally along the tread, thereby increasing the technical problems of noise during driving.

[0006] In order to solve the above technical problems, the present invention discloses a low-noise tire and a processing device thereof. The tire includes a tire tread, and variable-pitch pattern blocks are provided on the circumference of the tire tread. The variable-pitch pattern blocks adopt a large-angle oblique design, and the drainage grooves in the shoulder groove part of the tire tread are designed with fine scrambled steel sheets.

[0007] A processing device comprises a mounting platform, which is fixedly connected to an L-shaped support platform, the left and right sides of the L-shaped support platform are fixedly connected to tire mounting assemblies, and a hanging platform is installed on the mounting platform.

[0008] Preferably, the hanging platform includes a fixed column, a pitching arm and a manipulator, the fixed column is fixedly connected to the mounting platform, the pitching arm is rotatably connected to the fixed column, and the manipulator is installed on a side of the pitching arm away from the fixed column.

[0009] Preferably, the tire mounting assembly includes a telescopic drive member, the telescopic drive member is fixedly connected to the drive member mounting nut, the drive member mounting nut is threadedly connected to the height adjustment screw, and the working end of the telescopic drive member is rotatably connected to the tire mounting plate.

[0010] Preferably, the tire mounting plate includes a top plate and a bottom plate, the top plate is fixedly connected to the bottom plate, a plurality of meshing sliders are slidably connected to the top plate, an arc-shaped contact block is fixedly connected to the meshing slider, a mounting cavity is formed between the top plate and the bottom plate, a plurality of driving screws are rotatably connected in the mounting cavity, an engaging nut is threadedly connected to the driving screw, a plurality of engaging bevels are provided on the upper surface of the engaging nut, the engaging slider and the engaging nut are meshed with each other, a gear ring is rotatably connected in the mounting cavity, the gear ring and the meshing nut are meshed with each other, a screw drive motor is installed on one of the driving screws, and the screw drive motor is used to drive the driving screw to rotate.

[0011] Preferably, it also includes a tire qualification analysis component, which includes several storage gears, which are rotatably connected to the mounting platform, and a storage cavity is formed between the L-shaped support platform and the mounting platform, and the inner wall of the storage cavity is fixedly connected to an L-shaped guide plate, and the L-shaped guide plate is slidably connected to a Z-shaped plate, and the bottom of the Z-shaped plate is fixedly connected to an auxiliary guide slider, and the auxiliary guide slider is slidably connected to the slider guide groove of the L-shaped support platform. The upper surface of the Z-shaped plate is provided with an engaging rack, and the storage gear and the engaging rack are meshed with each other. An electric storage screw is rotatably connected to the Z-shaped plate, and an auxiliary test plate is threadedly connected to the electric storage screw, and a raised plate is installed on the top surface of the auxiliary test plate, and a plurality of evenly arranged limit holes 1 are opened on the bottom surface of the auxiliary test plate, and a limit pin 1 is slidably connected to the Z-plate, and the limit pin 1 is used to cooperate with the limit hole 1. A plurality of evenly arranged limit holes 2 are opened at the bottom of the Z-plate, and a plurality of limit pins 2 are slidably connected to the L-shaped support platform, and the limit pins 2 are used to cooperate with the limit holes 2.

[0012] Preferably, it also includes a grinding assembly, which includes an adjusting motor, the adjusting motor is fixedly connected to the Z-shaped plate, the adjusting motor output end is fixedly connected to an adjusting screw, the adjusting screw is threaded with an adjusting nut, the two adjusting nuts are respectively hingedly connected to a lifting link, the two lifting links are hinged in the middle, and the ends of the two lifting links away from the adjusting nuts are hingedly connected to the lifting guide plate, and the grinding assembly body is installed on the lifting guide plate.

[0013] Preferably, the grinding assembly main body includes a base body, which is mounted on the lifting guide plate, a cam shaft is rotatably connected to the base body, a push cam is fixedly connected to the cam shaft, a wedge-shaped trigger is slidably connected to the base body, a buffer elastic member is sleeved on the wedge trigger, two symmetrically arranged intermediate gears are rotatably connected to the base body, and a straight wedge-shaped rack and an L-shaped rack are respectively engaged with the upper and lower sides of the intermediate gear, the straight wedge-shaped rack and the L-shaped rack are slidably connected to the base body left and right, the straight wedge-shaped rack is used to cooperate with the wedge-shaped trigger, an air bag is installed in the base body, a nozzle is installed on the L-shaped rack, and the air bag is communicated with the nozzle;

[0014] Two symmetrically arranged feed adjusting screws are rotatably connected in the seat body, and a feed grinding seat is threadedly connected on the feed adjusting screws.

[0015] Preferably, the system further comprises: a grip performance evaluation system for evaluating the grip performance of the tire, the grip performance evaluation system comprising:

[0016] A quality sensor is provided on the raised plate and is used to detect the quality of the tire;

[0017] Ultrasonic sensor 1, which is arranged on the tire mounting assembly and is used to detect the width of each groove of the tire;

[0018] Ultrasonic sensor 2, which is arranged on the tire mounting assembly and is used to detect the groove depth of the tire;

[0019] A counter is provided on the tire mounting assembly and is used to detect the total number of revolutions of the tire during the testing process;

[0020] A timer is provided on the tire mounting assembly and is used to detect the total time the tire is used in the testing process;

[0021] Controller 1, alarm 1, controller 1 is electrically connected to the mass sensor, ultrasonic sensor 1, ultrasonic sensor 2, counter, timer and alarm 1, and controller 1 alarms based on the mass sensor, ultrasonic sensor 1, ultrasonic sensor 2, counter and timer, including the following steps:

[0022] Step 1: Calculate the actual tire grip based on the mass sensor, ultrasonic sensor 1, ultrasonic sensor 2, counter, and timer:

[0023] Among them, F s is the actual grip of the tire, α is the coefficient of restitution of the tire, which ranges from 0.1 to 0.99, γ is the elastic hysteresis coefficient of the tire, G is the weight of the tire, that is, the detection value of the mass sensor, N is the preset weight of the vehicle body, and B iis the width of the i-th type of tire groove, that is, the detection value of ultrasonic sensor 1, n is the number of tire groove types, d is the depth of the tire groove, that is, the detection value of ultrasonic sensor 2, is the elastic modulus of the tire material, v1 is the Poisson's ratio of the tire material, is the elastic modulus of the material of the raised plate, v2 is the Poisson's ratio of the material of the raised plate, D is the diameter of the tire, A is the number of rotations of the tire during the test, that is, the detection value of the counter, t is the detection value of the timer, π is the circumference of the circle, which is 3.14, θ i is the radian value of the acute angle of inclination of the i-th groove of the tire, sinθ i is θ i The sine value of

[0024] Step 2: Calculate the actual compliance coefficient of the tire's grip performance based on step 1:

[0025] Among them, τ is the actual qualification coefficient of the tire's grip performance, F s0 For the preset grip corresponding to the tire size and test conditions, controller 1 compares the actual grip performance qualification coefficient of the tire with the preset grip performance qualification coefficient of the tire. If the actual grip performance qualification coefficient is less than the preset grip performance qualification coefficient of the tire, controller 1 controls alarm 1 to issue an alarm prompt.

[0026] Preferably, it also includes a sound pressure level sensor, which is used to detect the noise emitted by the tire during the grip test. The sound pressure level sensor is electrically connected to controller one, and controller one is electrically connected to alarm two. When the actual detection value of the sound pressure level sensor is greater than the preset detection value, controller one controls alarm two to issue an alarm prompt.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The low-noise all-season tire applied for by the present invention adopts a combined variable pitch arrangement when arranging the pitches in the circumferential direction of the tread, with the number of pitches being 10-80, thereby enhancing the handling performance while achieving the goal of noise reduction. The large-angle oblique pattern design increases the drainage efficiency and the gas movement in the pattern grooves is reasonably guided and controlled, thereby achieving the purpose of drainage and noise reduction. It is particularly suitable for low-profile passenger car tires. The drainage grooves in the shoulder groove part of the tread are designed with fine scrambled steel sheets, which reduces the lateral flow of air in the tread, achieves the effect of reducing tire noise, improves grip, and enhances the wetland performance and snow performance of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0030] FIG1 is a schematic diagram of the structure of a low-noise tire according to the present invention;

[0031] FIG2 is a second schematic diagram of the low-noise tire structure of the present invention;

[0032] FIG3 is a schematic structural diagram of a processing device according to the present invention;

[0033] FIG4 is a schematic diagram of the structure of the mounting platform of the present invention;

[0034] FIG5 is a schematic structural diagram of a tire mounting assembly according to the present invention;

[0035] FIG6 is a schematic structural diagram of a tire mounting plate according to the present invention;

[0036] FIG7 is a front view of the tire mounting plate of the present invention;

[0037] FIG8 is a cross-sectional view of a tire mounting plate of the present invention;

[0038] FIG9 is a schematic diagram of the Z-shaped plate structure of the present invention;

[0039] FIG10 is a schematic diagram of the main structure of the grinding assembly of the present invention.

[0040] In the figure: 1. tire tread; 100. variable pitch pattern block; 2. mounting platform; 200. L-shaped support platform; 3. tire mounting assembly; 300. telescopic drive member; 301. drive member mounting nut; 302. height adjustment screw; 303. tire mounting plate; 3030. top plate; 3031. bottom plate; 3032. engagement slider; 3033. arc-shaped contact block; 3034. drive screw; 3035. engagement nut; 3036. engagement twill; 3037. gear ring; 3038. screw drive motor; 3039. mounting cavity; 4. hanging platform; 400. fixing column; 401. Lift arm; 402, manipulator; 5, tire acceptance analysis assembly; 500, storage gear; 5000, storage chamber; 5001, L-shaped guide plate; 5002, Z-shaped plate; 5003, auxiliary guide slider; 5004, slider guide groove; 5005, meshing rack; 5006, electric storage screw; 5007, auxiliary test plate; 5008, raised plate; 5009, limit hole 1; 501, limit pin 1; 5010, limit hole 2; 5011, limit pin 2; 6, grinding assembly; 600, adjustment motor; 6000, adjustment screw; 6001, adjustment nut; 6002, lifting connecting rod; 6003, lifting guide plate; 601, grinding assembly body; 6010, seat body; 6011, cam shaft; 6012, push cam; 6013, wedge-shaped trigger member; 6014, intermediate gear; 6015, straight wedge-shaped rack; 6016, L-shaped rack; 6017, buffer elastic member; 6018, airbag; 6019, nozzle; 602, feed adjustment screw; 6020, feed grinding seat. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0042] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but this must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0043] The present invention provides the following embodiments

[0044] Example 1

[0045] An embodiment of the present invention provides a low-noise tire and a processing device thereof. As shown in Figures 1-10, the tire includes a tire tread 1, and the tire tread 1 is provided with variable pitch pattern blocks 100 in the circumferential direction. The variable pitch pattern blocks 100 adopt a large-angle oblique design, and the drainage grooves in the shoulder groove part of the tire tread 1 adopt a fine scrambled steel sheet design.

[0046] The working principle and beneficial effects of the above technical solution are as follows: The low-noise all-season tire applied for by the present invention adopts a combined variable pitch arrangement when arranging the pitches in the circumferential direction of the tread, with the number of pitches ranging from 10 to 80, thereby enhancing handling performance while achieving the goal of noise reduction. The large-angle oblique pattern design increases drainage efficiency and rationally guides and controls the movement of gas in the pattern grooves, achieving the goals of drainage and noise reduction. It is particularly suitable for low-profile passenger car tires. The drainage grooves in the shoulder groove portion of the tread are designed with fine scrambled steel sheets, which reduces the lateral flow of air in the tread, achieving the effect of reducing tire noise, improving grip, and enhancing the tire's wet and snow performance.

[0047] It solves the problem that the length of the transverse pattern block in the traditional tire pattern design is fixed, which leads to the interference-enhanced noise caused by the superposition of the fixed frequency noise mentioned above. At the same time, due to the transverse pattern design, the drainage and exhaust effects are poor. Water and air cannot be properly channeled during driving, resulting in loud driving noise. In addition, since the tread groove shoulders of traditional tires are open, air will flow laterally along the tread, thereby intensifying the technical problem of noise during driving.

[0048] Example 2, based on Example 1, includes a mounting platform 2, which is fixedly connected to an L-shaped support platform 200, with tire mounting assemblies 3 fixedly connected to the left and right sides of the L-shaped support platform 200, and a hanging platform 4 installed on the mounting platform 2;

[0049] The hanging platform 4 includes a fixed column 400, a pitch arm 401 and a manipulator 402. The fixed column 400 is fixedly connected to the mounting platform 2, the pitch arm 401 is rotatably connected to the fixed column 400, and the manipulator 402 is installed on the side of the pitch arm 401 away from the fixed column 400.

[0050] The working principle and beneficial effects of the above technical solution are as follows: after the tire is installed, the tire is lifted to the tire installation assembly 3 by the lifting platform 4 and installed by the tire installation assembly 3. After installation, the surface of the tire is polished and the quality is analyzed and tested;

[0051] When the platform 4 is working, the spatial position of the manipulator 402 is flexibly adjusted through the pitch arm 401, and the tire is grabbed by the manipulator 402.

[0052] Example 3, based on Example 2, the tire mounting assembly 3 includes a telescopic drive member 300, the telescopic drive member 300 is fixedly connected to the drive member mounting nut 301, the drive member mounting nut 301 is threadedly connected to the height adjustment screw 302, and the working end of the telescopic drive member 300 is rotatably connected to the tire mounting plate 303;

[0053] The tire mounting plate 303 includes a top plate 3030 and a bottom plate 3031. The top plate 3030 is fixedly connected to the bottom plate 3031. A plurality of engaging sliders 3032 are slidably connected to the top plate 3030. An arc-shaped contact block 3033 is fixedly connected to the engaging slider 3032. A mounting cavity 3039 is formed between the top plate 3030 and the bottom plate 3031. A plurality of driving screws 3034 are rotatably connected in the mounting cavity 3039. The driving screws 3034 are threaded. It is connected to an engaging nut 3035, and a plurality of engaging bevel grooves 3036 are provided on the upper surface of the engaging nut 3035. The engaging slider 3032 is engaged with the engaging nut 3035. A gear ring 3037 is rotatably connected in the mounting cavity 3039, and the gear ring 3037 is engaged with the engaging nut 3035. A screw drive motor 3038 is installed on one of the driving screws 3034, and the screw drive motor 3038 is used to drive the driving screw 3034 to rotate.

[0054] The working principle and beneficial effects of the above technical solution are as follows: when the tire is clamped, the height adjustment screw 302 rotates to drive the drive member mounting nut 301 to move up and down to a suitable position, and then the telescopic drive member 300 is extended and retracted so that the tire mounting plate 303 is inserted into the middle of the tire, and then the screw drive motor 3038 is started to drive its corresponding drive screw 3034 to rotate, and the drive screw 3034 rotates to drive the meshing nut 3035 to move along the axis direction of the drive screw 3034 under the action of the thread, and the meshing nut 3035 is engaged. During the movement, the engaging slider 3032 slides radially along the top plate 3030 away from the center until it abuts the inner wall of the tire. Simultaneously, the engaging nut 3035 moves, driving the gear ring 3037 to rotate. The gear ring 3037 rotates, driving the other engaging nuts 3035 except those equipped with the lead screw drive motor 3038 to move, ultimately driving the engaging sliders 3032 corresponding to the other engaging nuts 3035 to slide radially along the top plate 3030 away from the center until they abut the inner wall of the tire, thereby clamping the tire.

[0055] Example 4, based on Example 2, further includes a tire qualification analysis component 5, which includes a plurality of storage gears 500, which are rotatably connected to the mounting platform 2, and a storage cavity 5000 is formed between the L-shaped support platform 200 and the mounting platform 2, and an L-shaped guide plate 5001 is fixedly connected to the inner wall of the storage cavity 5000, and a Z-shaped plate 5002 is slidably connected to the L-shaped guide plate 5001. The bottom of the Z-shaped plate 5002 is fixedly connected to an auxiliary guide slider 5003, and the auxiliary guide slider 5003 is slidably connected to the slider guide groove 5004 of the L-shaped support platform 200. The upper surface of the Z-shaped plate 5002 is provided with a meshing rack 5005, and the storage gear 500 and the meshing rack 500 are engaged. 5 are meshed with each other, an electric storage screw 5006 is rotatably connected in the Z-shaped plate 5002, an auxiliary test plate 5007 is threadedly connected to the electric storage screw 5006, a raised plate 5008 is installed on the top surface of the auxiliary test plate 5007, a plurality of evenly arranged limiting holes 5009 are opened on the bottom surface of the auxiliary test plate 5007, a limiting pin 1 501 is slidably connected in the Z-shaped plate 5002, the limiting pin 1 501 is used to cooperate with the limiting hole 1 5009, a plurality of evenly arranged limiting holes 2 5010 are opened on the bottom of the Z-shaped plate 5002, a plurality of limiting pins 2 5011 are slidably connected in the L-shaped support platform 200, the limiting pins 2 5011 are used to cooperate with the limiting holes 2 5010.

[0056] The working principle and beneficial effects of the above technical solution are as follows: when performing a tire conformity analysis, the auxiliary guide slider 5003 slides along the slider guide groove 5004, causing the Z-shaped plate 5002 to slide out of the storage cavity 5000, and then the second limiting latch 5011 moves upward to cooperate with the second limiting hole 5010, thereby achieving the positioning of the Z-shaped plate 5002, and then the electric storage screw 5006 rotates to cause the auxiliary test plate 5007 to extend outward, and then the first limiting latch 501 moves upward to cooperate with the first limiting hole 5009, thereby achieving the positioning of the auxiliary test plate 5007. During this process, flexible tire testing can be achieved by replacing the protruding plate 5008;

[0057] During the test, the tire rotates under the action of the tire mounting plate 303, and the auxiliary test plate 5007 is used to simulate different roads.

[0058] Example 5, based on Example 4, further includes a grinding assembly 6, the grinding assembly 6 including an adjusting motor 600, the adjusting motor 600 is fixedly connected to the Z-shaped plate 5002, the output end of the adjusting motor 600 is fixedly connected to an adjusting screw 6000, the adjusting screw 6000 is threadedly connected to an adjusting nut 6001, the two adjusting nuts 6001 are respectively hingedly connected to a lifting link 6002, the two lifting links 6002 are hinged at the middle part, the ends of the two lifting links 6002 away from the adjusting nuts 6001 are hingedly connected to a lifting guide plate 6003, and the lifting guide plate 6003 is mounted with a grinding assembly body 601;

[0059] The grinding assembly main body 601 includes a base 6010, which is mounted on a lifting guide plate 6003. A cam shaft 6011 is rotatably connected to the base 6010, and a push cam 6012 is fixedly connected to the cam shaft 6011. A wedge-shaped trigger member 6013 is slidably connected to the base 6010, and a buffer elastic member 6017 is sleeved on the wedge-shaped trigger member 6013. Two symmetrically arranged intermediate gears 6014 are rotatably connected to the base 6010. The upper and lower sides of the intermediate gear 6014 are respectively engaged with a straight wedge-shaped rack 6015 and an L-shaped rack 6016. The straight wedge-shaped rack 6015 and the L-shaped rack 6016 are slidably connected to the base 6010. Used to cooperate with the wedge-shaped trigger member 6013, an air bag 6018 is installed in the base body 6010, and a nozzle 6019 is installed on the L-shaped rack 6016. The air bag 6018 is connected to the nozzle 6019;

[0060] Two symmetrically arranged feed adjustment screws 602 are rotatably connected in the seat body 6010 , and a feed grinding seat 6020 is threadedly connected to the feed adjustment screws 602 .

[0061] The working principle and beneficial effects of the above technical solution are as follows: when the grinding assembly 6 is working, the auxiliary test plate 5007 is stored in the Z-shaped plate 5002, and then the adjustment motor 600 is started to drive the adjustment screw 6000 to rotate. The rotation of the adjustment screw 6000 drives the two adjustment nuts 6001 to move toward each other along the adjustment screw 6000, thereby causing the lifting guide plate 6003 to move upward under the action of the two lifting connecting rods 6002, and finally causing the grinding assembly body 601 to contact the tire body;

[0062] Then, the feed adjustment screw 602 rotates to drive the grinding seat 6020 to move up and down, and the grinding feed amount is fine-tuned. Then, the cam shaft 6011 rotates to drive the push cam 6012 to rotate. The rotation of the push cam 6012 cooperates with the buffer elastic member 6017 to make the wedge-shaped trigger member 6013 reciprocate up and down. The wedge-shaped trigger member 6013 moves upward to push the straight wedge-shaped rack 6015 to slide. The straight wedge-shaped rack 6015 drives the intermediate gear 6014 to rotate. The rotation of the intermediate gear 6014 drives the L-shaped rack 6016 to move left and right. The left and right movement of the L-shaped rack 6016 repeatedly squeezes the airbag 6018, thereby squeezing the air in the airbag 6018 through the nozzle 6019. The squeezed air is sprayed onto the tire surface, thereby blowing away the grinding debris. The timely treatment of the debris can ensure the grinding quality to the greatest extent.

[0063] During the grinding process, the tire mounting plate 303 rotates to drive the tire to rotate, and the tire is brought into contact with the feed grinding seat 6020 to achieve grinding of the tire.

[0064] Example 6, based on Example 4, further includes: a grip performance evaluation system for evaluating the grip performance of the tire, the grip performance evaluation system including:

[0065] A mass sensor is provided on the raised plate 5008 and is used to detect the quality of the tire;

[0066] Ultrasonic sensor 1, which is arranged on the tire mounting assembly and is used to detect the width of each groove of the tire;

[0067] Ultrasonic sensor 2, which is arranged on the tire mounting assembly and is used to detect the groove depth of the tire;

[0068] A counter is provided on the tire mounting assembly and is used to detect the total number of revolutions of the tire during the testing process;

[0069] A timer is provided on the tire mounting assembly and is used to detect the total time the tire is used in the testing process;

[0070] Controller 1, alarm 1, controller 1 is electrically connected to the mass sensor, ultrasonic sensor 1, ultrasonic sensor 2, counter, timer and alarm 1, and controller 1 alarms based on the mass sensor, ultrasonic sensor 1, ultrasonic sensor 2, counter and timer, including the following steps:

[0071] Step 1: Calculate the actual tire grip based on the mass sensor, ultrasonic sensor 1, ultrasonic sensor 2, counter, and timer:

[0072] Among them, F sis the actual grip of the tire, α is the coefficient of restitution of the tire, which ranges from 0.1 to 0.99, γ is the elastic hysteresis coefficient of the tire, G is the weight of the tire, that is, the detection value of the mass sensor, N is the preset weight of the vehicle body, and B i is the width of the i-th type of tire groove, that is, the detection value of ultrasonic sensor 1, n is the number of tire groove types, d is the depth of the tire groove, that is, the detection value of ultrasonic sensor 2, is the elastic modulus of the tire material, v1 is the Poisson's ratio of the tire material, is the elastic modulus of the material of the raised plate 5008, v2 is the Poisson's ratio of the material of the raised plate 5008, D is the diameter of the tire, A is the number of rotations of the tire during the test, that is, the detection value of the counter, t is the detection value of the timer, π is the circumference of the circle, which is 3.14, θ i is the radian value of the acute angle of inclination of the i-th groove of the tire, sinθ i is θ i The sine value of

[0073] Step 2: Calculate the actual compliance coefficient of the tire's grip performance based on step 1:

[0074] Among them, τ is the actual qualification coefficient of the tire's grip performance, F s0 For the preset grip corresponding to the tire size and test conditions, controller 1 compares the actual grip performance qualification coefficient of the tire with the preset grip performance qualification coefficient of the tire. If the actual grip performance qualification coefficient is less than the preset grip performance qualification coefficient of the tire, controller 1 controls alarm 1 to issue an alarm prompt.

[0075] Preferably, it also includes a sound pressure level sensor, which is used to detect the noise emitted by the tire during the grip test. The sound pressure level sensor is electrically connected to controller one, and controller one is electrically connected to alarm two. When the actual detection value of the sound pressure level sensor is greater than the preset detection value, controller one controls alarm two to issue an alarm prompt.

[0076] The working principle and beneficial effects of the above technical solution are as follows: through the design of the grip performance evaluation system, products with unqualified grip performance can be identified, thereby greatly ensuring the yield rate of tires leaving the factory. When calculating the actual grip of the tire, various parameters of the tire itself and the material parameters of the raised plate 5008 are comprehensively considered. At the same time, the calculation accurately takes into account the width and tilt angle of different structures, thereby greatly ensuring the accuracy of the calculation results.

[0077] When the actual detection value of the sound pressure level sensor is greater than the preset detection value, the controller 1 controls the alarm 2 to sound an alarm prompt, which proves that the tire noise test has failed.

[0078] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

Claims

1. A low-noise tire, characterized in that, It includes a tire tread (1). The tire tread (1) is provided with variable pitch tread blocks (100) in the circumferential direction. The variable pitch tread blocks (100) are designed with a large-angle diagonal design. The drainage grooves in the shoulder groove part of the tire tread (1) are designed with fine and scrambled steel sheets.

2. A processing device for processing a low-noise tire as described in claim 1, characterized in that: It includes an installation platform (2). The installation platform (2) is fixedly connected to an L-shaped support platform (200). Tire installation components are fixedly connected to the left and right sides of the L-shaped support platform (200). A suspension platform (4) is installed on the installation platform (2).

3. The processing device according to claim 2, wherein: The suspension platform (4) includes a fixed column (400), a pitching arm (401) and a manipulator (402). The fixed column (400) is fixedly connected to the installation platform (2). The pitching arm (401) is rotatably connected to the fixed column (400). The manipulator (402) is installed on the side of the pitching arm (401) away from the fixed column (400).

4. A processing device according to claim 2, characterized in that: The tire installation component includes a telescopic driving member (300). The telescopic driving member (300) is fixedly connected to a driving member mounting nut (301). The driving member mounting nut (301) is threadedly connected to a height adjustment lead screw (302). The working end of the telescopic driving member (300) is rotatably connected to a tire installation disc (303).

5. The processing device according to claim 4, wherein: The tire installation disc (303) includes a top disc (3030) and a bottom disc (3031). The top disc (3030) is fixedly connected to the bottom disc (3031). A number of meshing sliders (3032) are slidably connected to the top disc (3030). An arc-shaped contact block (3033) is fixedly connected to the meshing slider (3032). An installation cavity (3039) is formed between the top disc (3030) and the bottom disc (3031). A number of driving lead screws (3034) are rotatably connected in the installation cavity (3039). A meshing nut (3035) is threadedly connected to the driving lead screw (3034). A number of meshing inclined threads (3036) are provided on the upper surface of the meshing nut (3035). The meshing slider (3032) meshes with the meshing nut (3035). A toothed ring (3037) is rotatably connected in the installation cavity (3039). The toothed ring (3037) meshes with the meshing nut (3035). A lead screw driving motor (3038) is installed on one of the driving lead screws (3034). The lead screw driving motor (3038) is used to drive the driving lead screw (3034) to rotate.

6. The processing device according to claim 2, wherein: It further includes a tire qualification analysis component (5). The tire qualification analysis component (5) includes a number of storage gears (500). The storage gears (500) are rotatably connected to the mounting table (2). A storage cavity (5000) is formed between the L-shaped support table (200) and the mounting table (2). The inner wall of the storage cavity (5000) is fixedly connected with an L-shaped guide plate (5001). A Z-shaped plate (5002) is slidably connected to the L-shaped guide plate (5001). The bottom of the Z-shaped plate (5002) is fixedly connected with an auxiliary guide slider (5003). The auxiliary guide slider (5003) is slidably connected in the slider guide groove (5004) of the L-shaped support table (200). The upper surface of the Z-shaped plate (5002) is provided with a meshing rack (5005). The storage gear (500) meshes with the meshing rack (5005). An electric storage lead screw (5006) is rotatably connected inside the Z-shaped plate (5002). An auxiliary test plate (5007) is threadedly connected to the electric storage lead screw (5006). A convex plate member (5008) is installed on the top surface of the auxiliary test plate (5007). A number of uniformly arranged first limiting holes (5009) are formed in the bottom surface of the auxiliary test plate (5007). A first limiting pin (501) is slidably connected up and down inside the Z-shaped plate (5002). The first limiting pin (501) is used to cooperate with the first limiting holes (5009). A number of uniformly arranged second limiting holes (5010) are formed in the bottom of the Z-shaped plate (5002). A number of second limiting pins (5011) are slidably connected up and down inside the L-shaped support table (200). The second limiting pins (5011) are used to cooperate with the second limiting holes (5010).

7. A processing device according to claim 6, characterized in that: It further includes a grinding component (6). The grinding component (6) includes an adjustment motor (600). The adjustment motor (600) is fixedly connected to the Z-shaped plate (5002). The output end of the adjustment motor (600) is fixedly connected with an adjustment lead screw (6000). An adjustment nut (6001) is threadedly connected to the adjustment lead screw (6000). Two adjustment nuts (6001) are respectively hinged with lifting connecting rods (6002). The middle parts of the two lifting connecting rods (6002) are hinged. The ends of the two lifting connecting rods (6002) far away from the adjustment nuts (6001) are hinged to a lifting guide plate (6003). A grinding component main body (601) is installed on the lifting guide plate (6003).

8. A processing device according to claim 7, wherein: The main body (601) of the grinding assembly includes a base body (6010). The base body (6010) is installed on the lifting guide plate (6003). A cam rotating shaft (6011) is rotatably connected inside the base body (6010). A pushing cam (6012) is fixedly connected to the cam rotating shaft (6011). A wedge-shaped trigger member (6013) is slidably connected up and down inside the base body (6010). A buffer elastic member (6017) is sleeved on the wedge-shaped trigger member (6013). Two symmetrically arranged intermediate gears (6014) are rotatably connected inside the base body (6010). An L-shaped rack (6016) and a one-word wedge-shaped rack (6015) are respectively engaged with the upper and lower sides of the intermediate gear (6014). The one-word wedge-shaped rack (6015) and the L-shaped rack (6016) are slidably connected left and right inside the base body (6010). The one-word wedge-shaped rack (6015) is used to cooperate with the wedge-shaped trigger member (6013). An airbag (6018) is installed inside the base body (6010). A spray head (6019) is installed on the L-shaped rack (6016). The airbag (6018) is communicated with the spray head (6019). Two symmetrically arranged feed adjustment lead screws (602) are rotatably connected inside the base body (6010). A feed grinding base (6020) is threadedly connected to the feed adjustment lead screw (602).

9. A processing device according to claim 6, characterized in that: It further includes: A grip performance evaluation system for evaluating the grip performance of a tire. The grip performance evaluation system includes: A mass sensor which is arranged on the convex plate member (5008) and is used to detect the mass of the tire; A first ultrasonic sensor which is arranged on the tire mounting assembly and is used to detect the width of each groove of the tire; A second ultrasonic sensor which is arranged on the tire mounting assembly and is used to detect the groove depth of the tire; A counter which is arranged on the tire mounting assembly and is used to detect the total number of rotations of the tire during the detection process; A timer which is arranged on the tire mounting assembly and is used to detect the total time used by the tire during the detection process; A first controller and a first alarm. The first controller is electrically connected to the mass sensor, the first ultrasonic sensor, the second ultrasonic sensor, the counter, the timer and the first alarm. The first controller controls the first alarm to give an alarm based on the mass sensor, the first ultrasonic sensor, the second ultrasonic sensor, the counter and the timer, including the following steps: Step 1: Based on the quality sensor, ultrasonic sensor 1, ultrasonic sensor 2, counter, and timer, calculate the actual grip of the tire: Among them, F s is the actual grip of the tire, α is the recovery coefficient of the tire, with a value range of 0.1 - 0.99, γ is the elastic hysteresis coefficient of the tire, G is the weight of the tire, which is the detection value of the mass sensor, N is the preset weight of the vehicle body, B i is the width of the i-th groove of the tire, which is the detection value of the first ultrasonic sensor, n is the number of types of tire grooves, d is the depth of the tire groove, which is the detection value of the second ultrasonic sensor, is the elastic modulus of the tire material, and v1 is the Poisson's ratio of the tire material, E is the elastic modulus of the material of the raised plate member (5008), v2 is the Poisson's ratio of the material of the raised plate member (5008), D is the diameter of the tire, A is the number of turns the tire rolls during the test, that is, the detected value of the counter, t is the detected value of the timer, π is the pi, with a value of 3.14, θ i is the radian value of the acute angle of inclination of the i-th groove of the tire, sinθ i is θ i the sine value of; Step 2: Calculate the actual qualified degree coefficient of the tire's grip performance based on Step 1: Among them, τ is the actual qualification coefficient of the tire's grip performance, and F s0 is the preset grip force corresponding to the tire size and test conditions. The first controller compares the actual qualification coefficient of the tire's grip performance with the preset qualification coefficient of the tire's grip performance. If the actual qualification coefficient of the grip performance is less than the preset qualification coefficient of the tire's grip performance, the first controller controls the first alarm to give an alarm prompt.

10. A processing device according to claim 9, characterized in that: It further includes a sound pressure level sensor which is used to detect the noise emitted by the tire during the grip performance test. The sound pressure level sensor is electrically connected to the first controller. The first controller is electrically connected to a second alarm. When the actual detection value of the sound pressure level sensor is greater than the preset detection value, the first controller controls the second alarm to give an alarm prompt.

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