A coupling

A 2019 - coupling profile 06 - 18 intelligent drawing frame, Laura straight league of servo motor and reducer, motor output shaft and input speed reducer shaft connection between the way, the accuracy, cost, transmission torque, factors, such as ratio of structure is varied, in this article a practical and common way of connection. Figure 1 is shown in figure 1 servo motors for the servo motor, which is suitable for installation with green face and torus surface, is processing surface, high dimensional accuracy, form and position tolerances of precision. Figure 2 figure 2 for planetary gear train speed reducer, planetary gear train can achieve a large reduction ratio. Diagram, green face and torus as the matching surface, is machined surface, and cooperate with servo motor. Yellow elastic tube expanding for reducer input shaft, on the other side blue shaft for the output shaft. Figure 3 locking ring coupling figure 4 lock ring in figure 3, figure 4 is locking ring coupling structure, for high strength GB70 screw, the screw by tightening the screws, narrow lock the inner hole diameter of the ring ( In fact after tightening the screws, inner hole) is not a perfect circle To compress the yellow elastic tube expanding in figure 2. Trimming the position and size in figure 3 is very exquisite, trimming can be reduced when tightening the screw by locking ring change of resistance ( Stretch) 。 Figure 5 installation tutu is servo motor and speed reducer ( Transparent falsified processing, there is no reduction gear train, only the appearance of a reducer sketch) Join, locking ring installation schematic diagram, the installation, first remove the dust cover from the reducer on the wrench via, the locking ring loop on the input shaft of the reducer, and Allen wrench into his hole, probably determine the locking ring of axial and radial position. Then put the servo motor and reducer, motor output shaft inserted elastic expansion tube hole, figure 2, figure 3, the green surface in joint together, and through the corners of the four screws ( Not shown) Lock. At last, the spin lock screw locking ring, the motor output shaft and gear reducer input shaft will join together. Figure 6 local signal tutu is a local map, very clearly shows that this kind of coupler structure model. Note: 1. Used by wrench hole, a total of two coupling, and symmetric distribution center, determines the locking ring installation, according to a direction. If the corresponding location on the surface of the reducer four dozen eight holes, installing a lock ring, can not consider the direction, but it is very uneconomical. 2. Automatic brake servo motor reducer changed is not convenient. Because, if you want to change the speed reducer, loose lock tight ring is the first step, but the servo motor at the instant of the stalling, lock screw of the circumferential position is arbitrary, is not necessarily to wrench hole. 3. Torus lock mode, when the contact pressure, can provide very large frictional force ( See euler's formula) To ensure the transmission torque without slippage. In a smaller space, this kind of simple and practical structure, low manufacturing cost. （ Source: textile machinery),