5790 results about "Tread" patented technology

Disclosed herein are tire tread rubber compositions comprising a specified elastomer component, reinforcing silica filler, a specified hydrocarbon resin, liquid plasticizer, and a cure package. The elastomer component includes styrene-butadiene rubber and high cis linear polybutadiene. Use of the disclosed ingredients may result in a tire tread having particular properties, as discussed further herein.

The invention relates to a pneumatic vehicle tire comprising a tread with profile positives delimited by grooves, including profile positives which are provided with sipes, which in plan view run at least in certain portions at an angle of 0° to 50° to the axial direction and have a width of 0.4 mm to 1.6 mm and a depth at the deepest point that is at least the profile depth reduced by 4.5 mm and at most 100% of the profile depth, with the sipes in each case being involved in forming at least one wear indicator. The wear indicator is formed by a sipe portion of the sipe which in plan view has the form of a sun symbol or a snowflake symbol.

The invention discloses a tire with a continuously woven carcass ply, and relates to the technical field of tires. Comprising a steel wire ring framework, a bead filler part, a sidewall rubber layer, a continuous woven carcass ply, a belted layer, a tread upper layer, a tread lower layer, a tire shoulder pad rubber layer, an airtight layer, a steel ring wrapping cloth layer and a seam allowance rubber protection layer, the tire side rubber layer, the belted layer, the tire shoulder pad rubber layer and the steel ring wrapping cloth layer are all arranged on the outer side of the continuously woven tire body cord fabric layer and are all attached to the continuously woven tire body cord fabric layer, and the continuously woven tire body cord fabric layer is an endpoint-free tire body cord fabric cylinder formed by continuously weaving cord threads or rubber-coated cord threads in a zigzag mode. The bead ring skeleton and at least a portion of the apex member are located inside the continuously woven carcass ply structure. The tire body cord thread cutting point generated in the manufacturing process of a traditional tire body cord fabric layer can be eliminated, and the technical problems that the rigidity at the cutting point of an existing tire body cord fabric layer is discontinuous and the bonding defect of a tire body cord thread and a rubber interface exists are solved.

A multi-layer shock absorbing cushion sole for footwear includes four layers of material, assembled in such a way that air pockets are created within the sole to provide a shock-absorbing, cushioning effect for a wearer's feet. The top layer of the sole is a hard rubber layer, preferably made from a thermoplastic rubber. The second layer is preferably positioned directly beneath the top layer, and includes shaped surfaces forming ridges and grooves on a top and bottom portion thereof to create open air pockets within the sole. The third layer, positioned below the cushion layer, is also preferably formed from a thermoplastic rubber. The bottom layer is preferably formed from natural rubber, and preferably includes a tread design on the bottom surface thereof. A multi-layer shock absorbing cushion insert for pre-existing footwear is also provided in another embodiment.

The present invention provides a motorcycle tire capable of suppressing water splashing forward for a long period of time. A motorcycle tire (1) has a circumferential groove (3). The circumferential groove (3) includes a plurality of first inclined portions (8) and a plurality of second inclined portions (9) that are inclined. The circumferential groove (3) includes a pair of groove walls (12). In a groove cross-section of the first inclined portion (8), each of the pair of groove walls (12) is inclined toward the first tread edge (T1) toward the inside in the tire radial direction with respect to a tread normal line (n). In a groove cross-section of the second inclined portion (9), each of the pair of groove walls (12) is inclined toward a second tread end (T2) toward the inside in the tire radial direction with respect to a tread normal (n).

The invention relates to the technical field of tire production, in particular to a method for identifying abnormal wear of a tire through color difference of an automobile tire tread, which comprises the following steps: determining scanning parameters; correcting scanning parameters; obtaining a point cloud picture; quantitative parameters are selected, and a wear state model is trained based on historical detection data; establishing a mapping relation; according to the detection data of the to-be-detected automobile tire and the wear state model, obtaining a quantization parameter value of the automobile tire; generating a quantization parameter point cloud picture; verifying whether the quantization parameter value is accurate or not according to the spectrogram of the reflected light and the quantization parameter point cloud atlas; and generating a visual quantization parameter point cloud picture. According to the method, scanning parameters are dynamically corrected according to the actual perimeter to ensure the accuracy of point cloud data, automatic calculation of quantization parameters is realized in combination with a machine learning model, and finally, abstract wear data are converted into a visual image through color mapping, so that the wear condition is directly obtained by observing colors, and the accuracy of the wear condition is improved. And the detection efficiency of abnormal wear of the tire is improved.

A multi-layer shock absorbing cushion sole for footwear includes multiple layers of material, assembled in such a way that air pockets are created within the sole to provide a shock-absorbing, cushioning effect for a wearer's feet. The top layer of the sole is a hard rubber layer, preferably made from a thermoplastic rubber. The second layer is preferably positioned directly beneath the top layer, and includes air pockets formed therein by various structures, methods and techniques. The optional third layer, positioned below the cushion layer, is also preferably formed from a thermoplastic rubber. The bottom layer is preferably formed from natural rubber, and preferably includes a tread design on the bottom surface thereof. A multi-layer shock absorbing cushion insert for pre-existing footwear is also provided in another embodiment.

The invention relates to a tire structure aging prediction method, in particular to a method, a system and a program product for predicting aging and damage risks of a tire multilayer structure. According to the method, nanoindentation testing is carried out on all layers (an airtight layer, a transition layer, a tread layer and the like) of the tire at different time points, elastic modulus data are obtained, and the modulus variation is calculated. And performing numerical solution on the diffusion behavior of oxygen in each layer in combination with a Fick diffusion equation, establishing a concentration-modulus coupling model, extracting an aging rate and a critical modulus change threshold, and realizing prediction of failure time of each layer, thereby evaluating the overall remaining life and safety risk of the tire. The system integrates a data acquisition module, a temperature control module and an automatic analysis module, has the advantages of high detection precision, quick response, accurate prediction and the like, and can provide a scientific basis for tire design optimization and maintenance management.

Car tyre (100) having a tread band (7) comprising a central region (L1) and two shoulder regions (L2, L3); the central region (L1) having a plurality of ribs (8, 9, 10), wherein a first rib (8) with a plurality of first transverse grooves (15) comprising a substantially straight first segment (15′), inclined relative to a direction parallel to said equatorial plane (X-X) so as to form an angle Θ smaller than or equal to 70°, a substantially straight counter-inclined second segment (15″) and a curved connecting segment (15″′) extending between said first segment (15′) and said second segment (15″); —the first rib (8) further comprising first straight sipes (21) located in the first rib (8) between said first transverse grooves (15) and extending over at least 60% of the width of said first rib (8); the first sipes (21) forming with said equatorial plane (X-X) an angle Θ′ preferably equal to the angle Θ of the first segment (15′) of the first transverse grooves (15).

The present invention provides a motorcycle tire capable of improving uneven wear resistance while maintaining wet performance. A motorcycle tire (1) has a tread portion (2). A tread portion (2) is provided with a plurality of first inclined grooves (3) that open from a crown region (Cr) toward a first tread edge (T1). The first inclined groove (3) includes a first portion (7) in which the groove width (W1) decreases from the crown region (Cr) toward the first tread edge (T1), and a second portion (8) in which the groove width (W1) increases toward the first tread edge (T1) to the first tread edge (T1).

The invention provides an all-steel tire tread pattern, and relates to the technical field of tire production. The tire tread is sequentially divided into a first tire shoulder, a first pattern block, a central pattern block, a second pattern block and a second tire shoulder by the four longitudinally formed pattern grooves along a first direction; a plurality of transverse grooves are longitudinally distributed in the surfaces of the first pattern blocks, the central pattern blocks and the second pattern blocks, and frosted lines are further arranged on the sides, tightly attached to the transverse grooves, of the first pattern blocks and the second pattern blocks; the pattern grooves extend to the groove bottoms in a wavy shape, the groove wall angles alpha of the tops of the pattern grooves range from 10 degrees to 15 degrees, and the groove wall angles beta of the groove bottoms of the pattern grooves range from 20 degrees to 25 degrees. The problems that in the prior art, an all-steel tire pattern cannot enhance the road holding force, and foreign matter such as pebbles is often clamped into a tire tread are solved, and the technical effects that the performance of an all-steel tire under various road surface conditions is improved, and the stability and safety of a vehicle during high-speed running are improved are achieved.

The invention discloses a temperature detection method and device for a mine engineering tire. The method comprises the following steps: acquiring a target thermal imaging image of a mine target area, and determining position information of each target tire on a target vehicle in the target thermal imaging image by using a target detection model; intercepting a tire area image including the target tire from the thermal imaging image according to the position information of the target tire, and dividing the tire area image into a tread area image and a sidewall area image by using a target segmentation model; the temperature information in the tread area image and the temperature information in the sidewall area image are subjected to statistics, the temperature states of the tread and the sidewall of the target tire are determined according to the statistical result, the temperature states are displayed, and the temperature states are used for reflecting whether the temperature of the tread or the sidewall is abnormal or not and the temperature abnormal area corresponding to the abnormal temperature. The technical problem that a traditional tire temperature detection scheme is not suitable for engineering tires working in the mine environment is solved.

The invention discloses a tire performance testing method and device. The method comprises the following steps: acquiring the initial depth and the post-grinding depth of each pattern groove on the tread of a target tire before and after grinding, and the initial temperature and the post-grinding temperature of each pattern block before and after grinding; determining an initial groove depth uniformity parameter, an initial temperature uniformity parameter, an after-grinding groove depth uniformity parameter and an after-grinding temperature uniformity parameter of the tread of the target tire before and after grinding based on the parameters; according to the initial groove depth uniformity parameter, the initial temperature uniformity parameter, the ground groove depth uniformity parameter and the ground temperature uniformity parameter, whether grinding of the target tire is qualified or not is evaluated; and if the grinding is qualified, testing the performance of the ground target tire. The technical problem that the accuracy of the performance test result of the polished tire is poor as the wear condition of the tread cannot be really reflected only according to the depth of the pattern groove is solved.

The invention provides a wheel tread derailment detection method and system for a railway vehicle. According to the method, jacking driving devices with jacking rotating wheels are symmetrically arranged on the two longitudinal sides of a track, a pressure sensing unit is arranged between the two jacking rotating wheels, optical detection units with orthogonal optical paths are installed on the outer sides, and displacement measurement units are integrated on the jacking rotating wheels, so that a three-dimensional detection network is formed. During detection, a top rotating wheel lifts a wheel step by step, a blocking signal, tread pressure and a vertical displacement parameter are synchronously collected, and a space mapping relation between a pressure decreasing path and a displacement abnormal point is established; converting the blocking signal into a blocking release rate, and calculating a displacement accumulated value in combination with a space mapping relation; and when the displacement accumulated value is continuously increased and the blocking release rate exceeds a threshold value, wheel-rail separation is judged, and jacking is controlled to be stopped. Through cooperative detection and analysis of multiple sensors, accurate judgment and self-adaptive jacking control of the wheel-rail separation state are achieved, and the problem of wheel diameter adaptability of a traditional fixed jacking mode is effectively solved.

The invention provides a tire test analysis and reliability evaluation method based on a damage evolution model, and the method comprises the steps: obtaining data: obtaining 12 mechanical channel data of forces and displacements of a tire in three directions and moments and rotation angles of three axes; identifying a periodic tread jitter value and a sidewall movement value of the tire as deformation channel data; acquiring a tire temperature field as temperature channel data; data analysis: analyzing the reliability of the tire based on the mechanical signal, the visual deformation signal and the temperature field signal; and reliability prediction: judging the tire damage probability based on reliability analysis results of the mechanical signal, the visual deformation signal and the temperature field signal.

A multi-layer shock absorbing cushion sole for footwear includes four layers of material, assembled in such a way that air pockets are created within the sole to provide a shock-absorbing, cushioning effect for a wearer's feet. The top layer of the sole is a hard rubber layer, preferably made from a thermoplastic rubber. The second layer is preferably positioned directly beneath the top layer, and includes shaped surfaces forming ridges and grooves on a top and bottom portion thereof to create open air pockets within the sole. The third layer, positioned below the cushion layer, is also preferably formed from a thermoplastic rubber. The bottom layer is preferably formed from natural rubber, and preferably includes a tread design on the bottom surface thereof. A multi-layer shock absorbing cushion insert for pre-existing footwear is also provided in another embodiment.

The invention discloses a nursery stock trimmer with an adjustable wheel tread for forest cultivation and a use method thereof. The nursery stock trimmer comprises a movable cart; the moving mechanism is arranged on the moving cart, the moving mechanism comprises a moving part and a rotating part, the moving part is arranged on the moving cart, the rotating part is arranged on the moving part, the fixed motor and the adjusting motor are started at the same time, and the trimmer body is adjusted to move to a proper height through transmission; the pruning machine can be adjusted according to the heights of different nursery stocks, through cooperation of the moving mechanism, the pruning machine body and the adjusting mechanism, moving wheels are turned over to the top of the pruning machine body, the angle of the pruning machine body is adjusted through a rotating motor, the side faces of the nursery stocks are pruned, and in the transportation process, the adjusting mechanism and the pruning machine body can be stored; and through rotation and transmission of the swing motor, the swing rod drives the fixed claw to swing, broken branches in front of the movable cart are cleaned, the movable cart is convenient to move, and the working efficiency is improved.

According to aspects of the invention, a tire for a vehicle comprising a tread is provided. The tread comprises a set of consecutive block patterns arranged along a circumference of the tire, each block pattern of the set of consecutive block patterns comprising a block and a first groove adjacent to the block. The set of consecutive block patterns comprises a first subset of n1 first block patterns having a first pitch length, a second subset of n2 second block patterns having a second pitch length greater than the first pitch length, and a third subset of n3 third block patterns having a third pitch length greater than the second pitch length, wherein n1 ≥ 10, 1≥n1n2≥0.50, and 3≥n2n3≥ 1.50.

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.

The invention discloses a wheel deviation resistance energy consumption monitoring method and device based on a new energy automobile, belongs to the technical field of tires of new energy automobiles, and aims to solve the problems that online monitoring is difficult to realize in the running process of an existing wheel deviation resistance monitoring method of the new energy automobile, and the energy consumption is low. And extra energy consumption caused by wheel deviation resistance is also easy to influence the prediction of the remaining mileage. The method comprises the steps that tire three-dimensional modeling sensing based on linear driving is conducted on the wheel running state of the new energy automobile, and abnormal wheel deviation tires of the new energy automobile are determined; according to geometric characteristics and mechanical characteristics between the tread and the ground, performing characteristic parameter calculation processing on the tread ground contact plane graph under an extrusion area to obtain an abnormal wheel deviation parameter of the abnormal wheel deviation tire; global contact coupling rigidity calculation is carried out on the abnormal wheel deviation parameters, and the tire stress of the abnormal wheel deviation tire is determined; and inputting the tire stress into the tire rolling resistance model to obtain the tire rolling resistance of the tire with abnormal wheel deviation.

The invention discloses a low-resistance and high-wear-resistance tire rubber composition as well as a preparation method and application thereof, and belongs to the technical field of rubber materials. The tire rubber composition comprises the following raw materials in parts by weight: 50-70 parts of natural rubber NR, 30-50 parts of solution polymerized styrene-butadiene rubber SSBR, 40-60 parts of modified white carbon black, 3-5 parts of zinc oxide, 1-2 parts of stearic acid, 1-3 parts of an anti-aging agent 6PPD and 2.5-3.5 parts of a vulcanization system. The prepared tire rubber material has the advantages that the rolling resistance is obviously reduced, the wear resistance is improved, the energy consumption is effectively reduced, and the requirements of new energy automobiles on high-performance tires are met. Through three-step modification treatment, the white carbon black is uniformly dispersed in a rubber matrix, and the interface bonding is firm, so that the prepared tire can reduce the rolling resistance of the tire using the tread rubber, and the tread rubber has higher wear resistance, tensile strength and elongation at break, and accords with the development direction of new energy automobiles in the future.

The invention discloses low-VOC (volatile organic compound) environment-friendly end-capped mercapto silane as well as a preparation method and application thereof.The preparation method comprises the following steps: by taking chloroalkyl trialkoxysilane and linear alkyl polyether alcohol as raw materials, reacting to form an intermediate c; reacting alkyl acyl chloride with sodium sulfide or sodium hydrosulfide to form an intermediate e; and reacting the intermediate c with the intermediate e to obtain a final product. Silane is used as a rubber auxiliary agent, so that the volatilization amount of alcohols in the internal mixing process of a rubber compound can be greatly reduced, the emission amount of VOC during operation is reduced, meanwhile, the vulcanization performance of a rubber material can be improved, the scorching time of the rubber material can be prolonged, the reinforcing effect of vulcanized rubber can be improved, the physical and mechanical properties of the vulcanized rubber can be improved, and the wet skid resistance of tread rubber can be improved; therefore, the environment-friendly rubber auxiliary agent is a multifunctional environment-friendly rubber auxiliary agent.

A wheel includes a boss, a rim, and a web. The rim includes a tread and a flange. A center of the rim in the axial direction of the wheel is disposed closer to the flange in the axial direction than a center of the boss in the axial direction is. The web has a plate-thickness center line that has a linear shape when the wheel is viewed in its longitudinal section. When an angle that the plate-thickness center line forms with the axial direction is denoted by a, a distance in the axial direction from a side face of the rim to an outer end of the plate-thickness center line is denoted by Pw, a length of the rim in the axial direction is denoted by Wr, and Pw / Wr is denoted by L, the wheel satisfies the expression L≥0.0223α−1.363. Where, the angle α is 90° or less.

A tire tread comprising a groove with a groove depth; a tread element adjacent to the groove; the tread element comprising a tread surface intended to engage a ground surface, a radial direction perpendicular to the tread surface, a sipe radially extending from the tread surface, along the radial direction the sipe exhibits an outer section parallel to the radial direction, an inner section parallel to the radial direction, the inner section comprising an even outer edge, an inclined section between the outer section and the inner section, the inclined section being inclined with respect to the radial direction of an inclination angle of at most 60°; the inclined section comprises undulations extending along the even outer edge.

A wireless power reception system includes a power transmission device, a power reception device, a wheel with a rim, and a tire mounted on the rim. The tire includes a bead core and a bead filler, a tire width direction cross-sectional area S1 of the bead filler is one to eight times a tire width direction cross-sectional area S2 of the bead core, the power transmission device can transmit electric power with a frequency of 1000 kHz or less wirelessly, the power reception device is disposed farther inward in the tire radial direction than a tread portion of the tire, the power reception device receives the electric power wirelessly from the power transmission device in a state such that the power transmission device is located farther outward in the tire radial direction than the tire, and the tread portion of the tire is formed from a non-magnetic material.

The rubber composition for a tire tread according to the embodiment contains a rubber component containing a diene rubber and vegetable granules having a surface treated with a sulfonic acid-type surfactant. The rubber composition for a tire tread has excellent on-ice performance, excellent wet performance, and excellent low heat generation property.

A pneumatic tire that is an example of an embodiment includes a tread and a sidewall, and the sidewall has at least one side block. At an inner end of the side block in a tire radial direction, a protrusion is formed that protrudes outward in a tire axial direction. A height H2 of the protrusion is, for example, between 1.1 and 3.0 times a height H1 of a highest portion of the side block other than the protrusion.