Drag chain PA66 wire carrier for CNC machine

1, according to the support plate maximum aperture Dma to determine the height of the chain plate hg and drag chain model.

2, the support plate cavity aperture D1=d+ is equal to about 0.1d (take an integer). Where d= outer diameter of wire, cable, liquid and gas hose.
3, according to the functional requirements of the tow chain to determine the bending radius of the tow chain of the support plate type:
① When the size of the pipe joint of the cable is larger than the bore of the inner cavity of the support plate or it needs to be disassembled and repaired frequently, the split type support plate can be selected;
② When the tow chain needs to carry a large load of pipes and cables, high-strength support plate type-monolithic type should be selected;
③ The specifications and varieties of the installation cable are more, and the frame type support plate can be selected.
4, the use of the machine tool drag chain is limited, or affected by the environment, the need to use steel belt protection support plate.
5, according to the number of installed pipes to determine the width of the support plate b1, so that the width of the tow chain B.

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In order to increase the weatherability and kneading resistance of the cable, the insulation layer is made of high intensity irradiation type ethylene propylene rubber material with weatherability and kneading resistance. Ethylene propylene rubber insulation should be tightly squeezed on the conductor to ensure that there are no visible bubbles and impurities in the section, the appearance is smooth, the irradiation is sufficient, and it is easy to separate from the conductor to achieve better insulation protection effect.
In order to strengthen the strength of the entire cable structure and ensure the durability of the cable, the center reinforcement is selected. The center reinforcement consists of an irradiated ethylene-propylene rubber layer, which is extruded from aramid yarn and aramid yarn. In order to separate each cable core, improve the insulation effect, enhance the structural strength, and improve the tensile and compressive strength, the filler is selected. The filling reinforcement is made of fine jute rope, which will not increase the weight of the cable while achieving the above purpose.