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现通用的爪型弹性联轴器结构如图1,两个半联轴节带有围边,在装配后将弹性块包住,可防止弹性块在离心力作用下向外移位和断裂后用出,以维持泵组正常运转。但围边底部无法加工,只能铸造成形,对铸造工艺要求较高。若能保证橡胶弹性块的爪不会断掉,联轴节的围边即可取消,可将联轴器改为图2所示的结构。后者在结构上与前者基本相同,只是去掉了围边,改变了橡胶弹性块的形状。改进后的爪形为等宽,根部呈大于90°的钝角,不象90°根角对变形敏感,且受力爪两边所受到的挤压力会产生一个向心分力,与两边的摩擦阻力一起克服离心力的作用。这样就减少了弹性爪根部的
Now common claw-type flexible coupling structure shown in Figure 1, two semi-joint with a peripheral edge, the elastic block after the package wrap, to prevent the elastic block under the centrifugal force to move outward and fracture with Out, in order to maintain the normal operation of the pump. But the edge of the bottom can not be processed, only casting shape, casting process requirements higher. If you can ensure that the rubber elastic block claws will not be broken, the coupling edge can be canceled, the coupling can be changed to the structure shown in Figure 2. The latter structure is basically the same with the former, just remove the edge, changing the shape of rubber elastic block. The improved claw shape is equal width, the root is obtuse angle greater than 90 °, unlike the 90 ° root angle is sensitive to deformation, and the squeezing force on both sides of the force claw will produce a centripetal force, and the frictional resistance Together to overcome the role of centrifugal force. This reduces the root of the elastic claw