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叉车轮胎的非正常磨损会出现什么情况?

来源:/ 日期:2018-09-25 发布人:admin

叉车轮胎在使用中的非正常磨损一般有六种情况:一是胎冠中部超常磨损;二是胎冠两肩超常磨损;三是转向轮的胎冠内侧(或外侧)超常偏磨损;四是胎冠呈锯齿状磨损;六是胎冠局部磨损。主要表现为胎面磨损不均匀•●、帘布层之间脱层•●、帘线松散和折断及由此引起的胎体破裂。

There are six kinds of abnormal wear of fork-lift tire in use: abnormal wear in the middle of crown; abnormal wear in the shoulders of crown; abnormal abnormal abrasion in the inner (or outer) crown of steering wheel; serrated abrasion in the crown; and local abrasion in the crown. The main manifestations are uneven tread wear, delamination between the cord layers, loose and broken cord and the resulting matrix rupture.
叉车行驶时,轮胎各部分受力较为复杂:在垂直方向有垂直反力,切线方向有纵向和横向反力,使轮胎在这些方向存在整体或局部的相对滑移,引起胎面磨损及变形;在胎体内部产生拉伸•●、压缩而引起材料疲劳,从而降低强度;在帘布层之间产生剪应力,当此应力超过帘布层与橡胶层间的吸附力时,就会出现帘线松散现象;在轮胎变形中,外胎与内胎之间也会发生磨擦生热,一部分热量散发在空气中,另一部分热量积累起来,导致轮胎温度升高•●、性能下降,使轮胎非正常磨损增加,引起帘线松散•●、折断及胎体破裂等现象。
济南二手叉车
When a forklift truck is running, the forces acting on each part of the tire are more complicated: there are vertical reactions in the vertical direction, and longitudinal and transverse reactions in the tangent direction, which make the tire slip in these directions, causing tread wear and deion; tensile and compression in the inner part of the carcass lead to material fatigue, thereby reducing the strength. When the shear stress between the cord layer exceeds the adsorption force between the cord layer and the rubber layer, the cord loosening will occur; during tire deion, friction and heat will also occur between the outer tube and the inner tube, part of the heat will be emitted in the air, and the other part of the heat will accumulate, resulting in tire temperature rising. The abnormal wear of tire increases with the decrease of tire performance, resulting in loose cord, breakage and carcass rupture.
在一定的载荷和行驶条件下,叉车的轮胎有一个适宜的轮胎气压,当轮胎气压低于标准值行驶时,轮胎径向变形增大,两侧产生过度挠曲,以致胎冠两侧接地,胎侧内壁受压,胎侧外壁受拉,胎体内帘线产生较大的变形和交变应力。周期性的压缩变形,会回速帘线的疲劳损坏,使轮胎的帘布层和轮胎与地面之间相对滑移增大,摩擦产生的热量增多,轮胎温度急剧上升,使橡胶的抗拉强度降低,帘线松散和局部脱层,遇有障碍受到冲击时就产生爆胎。
Under certain load and running conditions, the tire of forklift truck has a suitable tire pressure. When the tire pressure is lower than the standard value, the radial deion of the tire increases, and excessive deflection occurs on both sides of the tire, resulting in the grounding of the crown on both sides, the compression of the inner wall of the tire side, the tension of the outer wall of the tire side, and the large deion and change of the tire cord in the tire body. Stress. Periodic compression deion will speed up tire fatigue damage, so that the tire cord layer and the tire relative slip between the ground and increase the heat generated by friction, tire temperature rises sharply, so that the tensile strength of rubber is reduced, cord loose and partial delamination, when there are obstacles under the impact of tire burst.
胎面的压力不均匀,使胎肩部分磨损严重,产生“桥式效应”,胎面呈齿状或波浪状。轮胎花纹凹部易嵌入道路的钉子和石块,引起机械损伤。胎体滚动阻力加大,燃料消耗量增加。试验表明,当轮胎气压低于标准值的20%-25%,油耗相应增加20%。当轮胎气压高于标准值行驶时,使胎冠中央接地,轮胎与路面接触面积减小,单位面积上的负荷加大,胎冠中部磨损加剧。轮胎的帘线受到过度伸张,胎体帘线应力增大,帘线疲劳过程加快,引起帘线拉断,造成轮胎早期爆胎。
The uneven pressure on the tread causes severe wear and tear on the shoulder part of the tread, resulting in a "bridge effect" with the tread in the form of teeth or waves. The tread pattern concave is easily embedded in road nails and stones, causing mechanical damage. The rolling resistance of the matrix increased and fuel consumption increased. The test showed that when the tire pressure was lower than the standard value of 20%-25%, the fuel consumption correspondingly increased by 20%. When the tire pressure is higher than the standard value, the central grounding of the crown, the contact area between the tire and the road surface is reduced, the load per unit area is increased, and the wear in the middle of the crown is aggravated. The tire cord is stretched excessively, the stress of the matrix cord increases, and the fatigue process of the tire cord is accelerated, which causes the tire cord to break and causes the tire to burst early.
有了上面的小总结,希望对广大客户有所帮助,如果有什么不理解的或者寻求帮助的请点击我们的官方网站:济南二手叉车或者来电咨询,我们会尽全力为您解决
With the above summary, I hope to help the majority of customers, if you do not understand or ask for help, please click our official website: Jinan used forklift or inquiry calls, we will do our utmost to solve for you

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