637results about "Tyre parts" patented technology

The invention discloses a tire finite element modeling and multidirectional rigidity optimization method and system based on characteristic lines. The method comprises the following steps: extracting tire section characteristic lines from a three-dimensional digital model; introducing the tire section characteristic line into a finite element analysis environment, generating a three-dimensional tire geometric model by rotationally scanning the characteristic line, and performing grid division on the model; setting tire material attributes, performing zoning setting on the model according to a tire crown, a tire shoulder and a tire side wall, and setting tire thickness based on zoning; applying a constraint boundary condition at the center of the tire, and establishing a contact form of the tread and the ground; a progressive inflation pressure load is applied, the deformation state of the inflated tire is calculated, and longitudinal rigidity, radial rigidity and lateral rigidity calculation and analysis steps are set; the tire elasticity modulus and the cord fabric thickness are used as design variables, and an optimization algorithm is adopted to solve a multi-objective optimization function. The method has the advantages of being simple in modeling method and high in practical operability, the tire modeling threshold can be lowered, and the fund and time cost of refined modeling is reduced.

A rubber coating for a radiofrequency identification device for a tyre characterized in that it comprises: (a) 100 phr of at least one diene-based elastomer; (b) at least one chemical according to formula (1) wherein the chemical comprises in its structure at least the structure of the 2,2′-methylenediphenol, and wherein the 2,2′-methylenediphenol may be substituted in ortho, para, meta position or any combination thereof with an aliphatic, linear or branched, hydrocarbon chain comprising from 1 to 10 C atoms, or may be polymerized in ortho, para, meta position or any combination thereof with one or more additional alkylphenol units. A radiofrequency identification (RFID) module for a tyre comprising a radiofrequency identification device surrounded by a rubber coating, a tyre or a tyre retread comprising such radiofrequency identification module, and use of a rubber coating for surrounding a radiofrequency identification device.

The invention belongs to the technical field of tire engineering design, and discloses an engineering tire belted layer end structure finite element design analysis method and system. Comprising the steps of obtaining and preprocessing tire carcass contour data and initial belted layer parameters, conducting belted layer end parametric modeling on the basis of a standardized tire geometric model, constructing a durability finite element analysis model to obtain a stress-strain distribution field, conducting multi-parameter sensitivity analysis to determine a key influence factor weight matrix, and obtaining a stress-strain distribution field. And optimally designing a belted layer end structure based on the matrix, and finally performing durability verification and evaluation. According to the method, through accurate geometric expression, flexible parametric modeling, accurate performance analysis and multi-objective optimization design, belted layer end stress distribution uniformization and structural rigidity optimization are achieved.

The invention provides an aircraft tire shoulder heat generation optimization method and system based on interlayer pixel-level modeling, and relates to the technical field of aircraft tires, and the method comprises the steps: outputting an interlayer pixel-level model; extracting basic parameters of a tire shoulder area; tire shoulder heat generation simulation is executed, and a tire shoulder area temperature distribution cloud picture is output; positioning the highest temperature extreme value and the coordinate position of the high-temperature accumulation area; taking minimization of the maximum temperature extreme value as a heat generation temperature optimization target, taking a condition that the area of a high-temperature accumulation area is smaller than 15% of the total area of a tire shoulder area as a heat generation range constraint condition, and setting a parameter adjustment vector array of basic parameters of the tire shoulder area; executing particle swarm iterative optimization, and outputting tire shoulder optimization correlation parameters; and outputting the thermodynamic optimization parameters of the tire shoulder. According to the method, the technical problem that the durability and the critical speed of the tire are finally affected due to the fact that a macroscopic model is mostly adopted for calculation in an aviation tire shoulder heat generation optimization method in the prior art, and a detailed physical process between different hierarchical structures is ignored is solved.

The invention discloses special mute cotton for tires, which comprises a mute layer and a back adhesive tape, and the back adhesive tape is prepared from the following substances in parts by mass: 80-100 parts of styrene-butadiene-styrene block copolymer, 50-60 parts of tackifier, 20-30 parts of naphthenic oil, 5-15 parts of adsorbent, 1-2 parts of antioxidant 1520 and 1-2 parts of cross-linking agent. The prepared mute cotton does not need laser treatment and polishing, can effectively absorb a release agent on the inner wall of a tire, the bonding effect can reach cohesive failure of a self-adhesive layer, revolutionary change is achieved, tire agents, tire stores and even vehicle owners can operate the mute cotton by themselves, equipment assistance is not needed, construction is simple, cost is low, and large-scale popularization can be achieved.

The present invention provides a tire processing device, a tire repair device, a repair sheet, a tire repair method, and a tire manufacturing method. The tire repair device (10) of the present invention comprises: a tire support portion (15) that rotatably supports a pneumatic tire (5); and an attachment mechanism (18) that causes a softening additive to adhere to a tread portion (5A) of the pneumatic tire (5) supported by the tire support portion (15) so that the additive permeates the tread portion (5A).

To provide a feature capable of improving the estimation accuracy of a magic formula model used as a tire characteristic model.SOLUTION: This tire characteristic model identification method comprises: a pre-processing step; a first identification step; and a second identification step. In the pre-processing step, a first parameter group is identified in a basic formula of a magic formula model, and a second parameter group is derived using a detailed formula of the magic formula model on the basis of the first parameter group. In the first identification step, setting the second parameter group derived in the pre-processing step as an initial value and a representative parameter in the second parameter group variable, identification is carried out using the basic formula and the detailed formula. In the second identification step, setting the second parameter group updated in the first identification as an initial value and at least one of a load dependent parameter, a camber angle dependent parameter, and an inner pressure parameter variable, identification is carried out using the basic formula and the detailed formula.SELECTED DRAWING: Figure 3

The invention belongs to the technical field of tire design, and discloses a mining wide-body vehicle tire crown carcass contour design method and system, and the method comprises the steps: collecting data to construct a working condition pedigree, carrying out load analysis to obtain an inflation equilibrium state target contour, and forming a crown stress-strain ideal distribution domain; surveying and mapping a material rigidity change mapping table, constructing a deformation matrix, and reversely solving to obtain an initial contour map of the mold; dividing crown carcass curvature partitions, carrying out crown stress analysis, and carrying out matching evaluation to form a deviation correction parameter set; a contour design scheme is accurately corrected, inflation deformation is simulated, and a final crown carcass contour map is obtained through adaptability evaluation selection. According to the method, through combination of mechanical analysis and material characteristics, accurate contour control of the tire from design to production is achieved, and the durability and working condition adaptability of the tire of the mining wide-body vehicle are improved.

The utility model relates to the technical field of improving the mute effect of an automobile tire, and discloses a mute structure for improving the mute effect of the automobile tire, mute cotton formed by a polyurethane matrix is embedded in the inner wall of the tire, the matrix is provided with micropores, and reinforced fibers are respectively arranged in the transverse direction and the longitudinal direction of the matrix. And the polyurethane matrix is bonded with the inner wall of the tire through a glue layer. The silence cotton can effectively absorb and disperse vibration and noise generated in the running process of the tire through the combination of the micropore structure and the reinforced fibers. In addition, the use of the polyurethane matrix ensures that the mute cotton has good elasticity and durability, so that the mute effect of the mute cotton is kept in long-term use. According to the utility model, not only is the comfort of the automobile improved, but also the noise pollution to the environment is reduced. By adopting the organic silicon sealing glue as the bonding layer, the tight combination of the mute cotton and the inner wall of the tire is ensured, the abnormal sound possibly generated in the driving process is avoided, and the high practical value and the market application prospect are achieved.

The invention belongs to the field of wheel road tests and bench tests, and particularly relates to a wheel bench impact test method and system equivalent to test field road impact. The method comprises the following steps: determining a road impact condition of a vehicle for road test; the road impact working condition is reproduced; in the reproduced road impact working condition, simulation prediction of rack impact test energy is carried out; and generating a bench impact test scheme based on a simulation prediction result. Compared with a traditional road test, the method has the same test effect, the test period can be greatly shortened, test resources and cost are saved, potential risks of the wheel road test are found in advance, and a necessary rapid test verification means is provided for wheel design and verification. The assessment of the road test on the wheel is equivalent to the bench test, the reliability of the road test on the wheel is verified before the whole vehicle road test, the risk of failure of the wheel in the whole vehicle road test stage is reduced, and the method is wide in application range, simple, reliable and low in cost.

This analysis device comprises: a sound absorption rate calculation unit that calculates a sound absorption rate on the basis of design information of a sound absorption structure; a modeling unit that generates a finite element model on the basis of design information of a tire; a sound absorption rate setting unit that sets a sound absorption boundary having a sound absorption rate to a finite element model on the basis of arrangement information of the sound absorption structure with respect to the tire; and a sound pressure analysis unit that analyzes a sound pressure distribution of an internal space of the tire on the basis of the finite element model in which the sound absorption boundary is set.

The invention discloses an intelligent simulation analysis method and system for standing wave characteristics and safety performance of an automobile tire, and relates to the technical field of intelligent simulation analysis and automobile safety. The intelligent simulation analysis method and system for the standing wave characteristic and the safety performance of the automobile tire comprises the following steps that S1, multi-dimensional simulation driving data are obtained and preprocessed; s2, reconstructing a tire structure response based on the preprocessed multi-dimensional simulation driving data, and measuring the intense degree of the structure response; s3, simulating tire temperature change in combination with a temperature rise simulation process, and judging whether temperature rise abnormity exists in the local area or not; and S4, carrying out space overlapping comparison on the structure response abnormity and temperature rise abnormity areas, and identifying a space overlapping state. The problems that a tire local high-temperature area and a standing wave high-response area are overlapped to cause structural instability easily, recognition is difficult to achieve in advance in the prior art, the monitoring mode is based on the overall trend, and a recognition and early warning mechanism for the local overlapping situation is lacked, so that the tire burst risk is difficult to perceive in time are solved.

To provide a tire simulation method and a tire simulation device which can shorten a computation time of a crack progress.SOLUTION: The tire simulation method includes tire model acquisition step ST01 which acquires a tire model for analyzing a rolling state of a tire, tire model deformation calculation step ST02 which calculates deformation of the tire model equivalent to one lap of tire rolling when the tire is grounded, tire part model acquisition step ST03 which acquires a tire part model for analyzing a part of the tire model, tire part model deformation calculation step ST04 which calculates deformation of the tire part model on the basis of the deformation of the tire model, crack progress model generation step ST07 which generates a crack progress model which defines a base point of the crack on the tire part model and crack progress analysis step ST08 which analyzes crack progress by calculating the deformation of the crack progress model on the basis of the deformation of the tire part model.SELECTED DRAWING: Figure 2

The invention relates to a heating system (1) for putting at least one tyre (P1, P2, P3, P4) at a predetermined target temperature, the system comprising: at least one heating enclosure (10, 12) for receiving said at least one tyre (P1, P2, P3, P4); a temperature-control system (20) comprising at least one heating device (21) and at least one temperature sensor (23), the temperature-control system (20) being configured to actuate the heating device (21) when the internal temperature measured by the temperature sensor (23) is strictly lower than the target temperature; the heating device (21) being an electrical energy heating device (21) comprising at least one electrical resistor. The invention also relates to a method for heating tyres (P1, P2, P3, P4) for putting at least one tyre (P1, P2, P3, P4) at a predetermined target temperature.

The invention relates to the technical field of engineering tires, in particular to a rubber engineering tire performance evaluation method and system. The method comprises the following steps: acquiring tire sample basic attribute information, mine operation dynamic loading information and mine topographic feature information, and simulating the influence of acting forces in different directions on tires at different positions under the working condition of mine operation based on the mine operation dynamic loading information and the mine topographic feature information in combination with the tire sample basic attribute information. Dynamic orientation acting force characteristic information is obtained; on the basis of the basic attribute information of the tire sample and in combination with the dynamic azimuth acting force characteristic information, simulating the negative influence of the tire in the process of transmitting the dynamic acting force to the steel wire ring to obtain the negative performance information of the tire; and based on the tire negative performance information, evaluating the performance performance information of the tire in the long and short periods, and determining and outputting a tire performance evaluation report. The tire damage analysis is more targeted, and the evaluation depth and accuracy are greatly improved.

The utility model relates to the technical field of semitrailer tire burst safety protection, and discloses a semitrailer tire burst emergency locking safety protection device which comprises a hub body and a spoke, a first supporting ring is arranged on the upper portion of the center of the outer side of the hub body, and a second supporting ring is arranged on the lower portion of the center of the outer side of the hub body. A connecting adjusting device is arranged at the other end of the first supporting ring and comprises two square grooves, arc-shaped screw rods are arranged between one end of the first supporting ring and one end of the second supporting ring and close to the front portion and the rear portion, and the two ends of the two arc-shaped screw rods penetrate through the two square grooves correspondingly to the inner walls of the two square grooves; and the outer sides of the two end parts of the two arc-shaped screw rods are in threaded connection with locking nuts in a sleeving manner. According to the hub main body adjusting device, a worker can adjust the locking nut to adjust and adapt to the hub main body according to different sizes of the hub main body through the connecting adjusting device, so that the universality and the adaptability of the device are improved.

The present invention relates to the field of tire manufacturing technology, and more particularly to a tire forming method, apparatus, and computer program product for optimizing the rounded reciprocating (RRO) out-of-roundness (RRO) of a green tire. The method comprises the following steps: 1) setting multiple apex positioning angles between 0 and 360 degrees in the forming machine product parameter column; 2) conducting a building drum and steel apex combination test at each angle, measuring the RRO out-of-roundness of 15 to 30 green tires, and taking the average value; 3) comparing the data to determine the minimum RRO out-of-roundness when the positioning angle is angle A; and 4) rotating the building drum by angle A, then combining the building drum with the steel apex. The present invention uses online RRO out-of-roundness data to adjust the angle between the building drum and the steel apex, effectively preventing the overlap of the high points of the building drum and the steel apex, thereby improving the overall quality of the tire.

The present invention provides a high-pressure foaming system for the inside of a tire, wherein the high-pressure foaming system, while continuously loading and unloading tires, automatically and uniformly injects a high-pressure mixture of raw materials into the tires to effectively and continuously produce tires with sound insulation and sound absorption effects. The high-pressure foaming system includes: a loading conveyor on which tires are placed upright from the outside and continuously conveyed in a straight line toward a supply path; a rotary table which is arranged in a perpendicular direction so as to correspond to the end of the loading conveyor, and which rotates individual tires in a locked and fixed state and drives the tires to repeatedly rotate by a set operation angle; an unloading conveyor which is disposed spaced apart from the loading conveyor with respect to the rotary table and on which the tires that have passed through the rotary table are placed upright and then continuously conveyed in a straight line toward a discharge path; a switching conveyance gripper which is installed between the loading conveyor and the unloading conveyor so as to correspond to the rotary table and can grip and then pick up and convey tires, and which drives the supply and discharge of tires toward the rotary table; and a high-pressure foaming device which is disposed on the opposite side of the rotary table to the switching conveyance gripper, and foams a mixed primer at high pressure inside the tires fixed on the rotary table.

A customizable inner tire insert may include an inflatable duct; a puncture-resistant, pressure-adjustable insert at least partially surrounding the inflatable duct; and a valve in operable communication with the inflatable duct.

The utility model discloses a self-repairing explosion-proof protection structure in a tire, which relates to the technical field of tires and comprises a tire. The anti-explosion sticker is arranged on the inner wall of the tire and used for preventing the tire from bursting, the anti-explosion sticker comprises an outer rubber layer, a first foaming layer, a net-shaped tension layer and a second foaming layer, the outer rubber layer is arranged on the inner wall of the tire, the first foaming layer is laid on the side face of the outer rubber layer, the net-shaped tension layer is laid on the side face of the first foaming layer, and the second foaming layer is laid on the side face of the net-shaped tension layer. A layer of glue is smeared between the outer glue layer and the inner wall of the tire, anti-explosion pastes are assembled on the inner wall of the tire in all directions, and adhesive stickers are smeared on the inner wall of the tire in advance, so that the tire can be subjected to anti-explosion treatment in all directions, and after the tire is punctured, a damaged area can be subjected to automatic repair and air leakage prevention treatment; and meanwhile, the condition that a gap is formed between the foaming body and the tire can be avoided, so that the tire not only has an anti-explosion effect, but also has good riding comfort and safety.

The present application provides a sponge-filled automobile tire and a manufacturing method thereof, comprising a tire body and a sponge block; the tire body is provided with a through hole for passing through a hub, and a cavity is arranged in the tire body and communicates with the through hole, and the sponge block is inserted into the cavity; the sponge block is provided with a through opening, and a cloth sleeve is sleeved on the outer wall of the sponge block outside the through opening. The present application utilizes the design of the cloth sleeve, the cloth sleeve is sleeved on the outside of the sponge block, when the sponge block is filled into the cavity, the cloth sleeve on the outside of the sponge block is bonded with the glue sprayed on the inner wall of the cavity, avoiding the case that the sponge block is directly bonded inside the cavity, when the tire body is punctured, the cloth sleeve is separated from the tire body, so that the sponge block can be disassembled, which facilitates the disassembly of the sponge block, and avoids the case that the sponge block and the tire body are bonded and broken during disassembly of the sponge block, part of the sponge block is left in the cavity, which causes inconvenience in cleaning and repairing the tire body.

The present invention provides a tire dimension measuring device and a tire dimension measuring system that can measure the tread radius of a tire with high precision. [Solution] A tire dimension measuring device 1. It includes a tire holder 2 for holding a tire T in a vertical position with the tire rotation axis Tc horizontal, and a non-contact displacement meter 3 for measuring at least the tread radius of the tire T held by the tire holder 2. The non-contact displacement meter 3 further includes a mover for moving the held tire in the tire radial direction and / or tire axial direction, and measures the tire outer diameter and / or tire total width.

The invention discloses a tire with a power generation function and a power generation method and relates to the technical field of new energy automobiles. The tire with the power generation function comprises a dynamic and static matching assembly and an energy recovery device, the dynamic-static matching assembly comprises a stator and a rotor; the rotor lantern ring section is movably sleeved outside the stator, and the rotor ratchet wheel section is suspended outside one axial end of the stator; the energy recovery device comprises a power input part and a power output part, and power transmission based on elastic connection is adopted between the power input part and the power output part. When the joint of the power input piece and the tire bead is sunken inwards, the power output piece is temporarily jointed with the rotor ratchet wheel section; and when the joint of the power input piece and the tire bead is restored, the power output piece is temporarily separated from the rotor ratchet wheel section. An automatic power generation method in vehicle running is applied to a tire with a power generation function. The power generation device is integrated in the automobile tire, and the grounding deformation of the tire is converted into electric energy through the combination of a ratchet mechanism and electromagnetic induction.

Pneumatic tire (12) with at least one damping element (8), wherein the at least one damping element (8) is located in an interior space (13) of the pneumatic tire (12) on an inner surface (7) of the tire opposite a tread (1) of the pneumatic tire (12), and wherein the at least one damping element (8) is at least partially made of a porous material and is designed to reduce noise, and wherein the at least one damping element (8) is bonded to the inner surface (7) of the tire, and wherein the pneumatic tire (12) is rotatable about an axis of rotation (R) in a direction of rotation (U), and wherein the at least one damping element (8) has at least one sound-interacting surface (18) and a maximum width (B) and a maximum height (H), wherein the maximum width (B) of the at least one damping element (8) is an extension of the at least one damping element (8).which extends perpendicular to the longitudinal axis (14) of the at least one damping element (8) and preferably parallel to the axis of rotation (R) of the pneumatic tire (12), and wherein a maximum height (H) of the at least one damping element (8) is such an extension of the at least one damping element (8) that extends perpendicular to the longitudinal axis (14) of the at least one damping element (8) and parallel to a radius of the pneumatic tire (12) and perpendicular to the axis of rotation (R) of the pneumatic tire (12), wherein the at least one sound-interacting surface (18) of the at least one damping element (8) is designed as a wave-shaped sound-interacting surface (18) according to at least one waveform, wherein the waveform follows a non-periodic function or a random pattern, in particular a random pattern based on a binary number sequence or a binary matrix, characterized in thatthat the waveform follows a damped function,

The application provides a four-wheel vertical load dynamic estimation system and simulation method of a variable load working condition commercial vehicle, relates to the field of vehicle motion characteristic simulation, and is composed of a nonlinear three-degree-of-freedom vehicle body model, a tire model, a four-wheel side slip angle / slip rate calculation model, a four-wheel vertical load solving model and a mass center position and spring mass estimation model. The mass center position and spring mass estimation model can be combined with the vehicle static axle load to estimate the mass center and mass related information, and correct the parameters in the vehicle body model and the vertical load solving model. The four-wheel vertical load and load transfer rate of the commercial vehicle can be obtained under the premise that the wheels are not additionally modified.

A tire framework comprises at least one set of integrated base bodies and a plurality of supporting structures, the base bodies are of a plate-shaped structure, fixing protrusion base body connectors are connected with fixing groove base body connectors so as to enable the base bodies to form a cylindrical structure, and at least one base body function hole is formed in the base bodies in a penetrating mode so as to enhance the attaching force of the base bodies and rubber materials. The at least one base body connecting port is formed in the base body so as to be connected with the pressure bearing ring, the multiple supporting structures transversely extend from the base body and are arranged in the radial direction of the tire, the supporting structures can be bent to form the radian of a tire body framework, and the supporting structure positioning holes are formed in the outer sides, away from the base body, of the supporting structures in a penetrating mode. The supporting structure functional holes are formed in the inner sides, close to the base body, of the supporting structures in a penetrating mode so as to enhance the attaching force of the supporting structures and rubber materials, the number of connecting points of the supporting structures on the tread portion is eliminated, supporting performance is high, and controllability is excellent.

To provide a tire physical information estimation system, a calculation model generation system and a tire physical information estimation method which can construct a simplified calculation model to estimate physical information concerning a tire.SOLUTION: A tire physical information estimation system 100 comprises a physical information estimation part 32 and a data acquisition part 31. The physical information estimation part 32 has a learning-type calculation model 32a extending from an input layer to an output layer, which estimates tire physical information that is generated by motion of a tire 10. The data acquisition part 31 acquires data input to the input layer. The calculation model 32a has a feature extraction part that executes convolution calculation in which a filter is set in a first combination of the tire 10, a vehicle and a road surface condition, and a fully coupled part learnt in a second combination different from the first combination.SELECTED DRAWING: Figure 2

The present invention discloses a wheel, which includes a hub, a ring-shaped tread, and support blocks disposed between the hub and the ring-shaped tread. A gas storage chamber for storing compressed air or inert gas is provided inside the hub. The wheel of the present invention has no risk of flat tires or air leakage, and is more economical and environmentally friendly for replacement and maintenance; moreover, the wheel can bear higher air pressure, has higher stiffness performance and lower rolling resistance. The present invention also discloses a vehicle.

To provide a tire which enables improvement of durability of a conductive member when the conductive member used for signal communication and power supply of an electronic device is installed on an inner surface rubber layer, and to provide a manufacturing method of the tire.SOLUTION: A tire includes: an inner surface rubber layer 10 forming a tire inner surface; and a conductive member 20 disposed on the inner surface rubber layer 10. The conductive member 20 is formed of a knitted fabric at least partially formed of a conductive yarn 23 and having elasticity. At least a part of a conductive part 21 formed of the conductive yarn 23 is filled with an elastomer 25 for filling spaces in the knitted fabric.SELECTED DRAWING: Figure 3