In the modification to prevent the bolt from breaking in the press, the round nut is used instead of the end cover to fix the retainer. Because the length of the main shaft is not enough, the inner end of the clutch main shaft is first machined with an internally threaded hole, and then a matching joint is coupled with the main shaft. Then, the welding is firm, the length of the main shaft is increased, and finally the external part is machined into an external thread matched with the M140X2 round nut.
The front end cap of the spindle is first machined with a left-handed internal thread at the front end of the spindle, and then the end cap is coupled with the main shaft, and then fixed by two screws. Originally, the 3KWY series three-phase asynchronous motor was connected to the worm through the coupling to drive the worm wheel to rotate. The worm wheel and the upper ball seat were connected by a key. The two pins of the ball screw were stuck in the two corresponding slots of the upper ball seat. Therefore, the rotation of the worm wheel causes the rotation of the ball screw to achieve the required height.
Due to the sudden unloading, the elastic deformation of the entire force-receiving part recovers and causes the ball to violently collide with the upper and lower spherical seats. This momentary slider does not obey the motion law of the crank-link mechanism and obeys the vibration law of the elastic system. The force of the cylinder is not enough to balance the gravitational inertial force and the frictional force acting on the slider. The gap between the movements must not be maintained on the non-stressed surface during the stamping work, and the contact surface of the movement is alternating.
In the process of alternating, the movements do not obey the general friction law, so the self-locking fails, the parts move according to the specific force of the moment of disengagement. Although this movement is very small, the accumulation will gradually make the closed height Significant changes.
A gear or cogwheel (Gear Wheel) is a rotating machine part having cut teeth, or cogs, which mesh with another toothed part to transmit torque. Geared devices can change the speed, torque, and direction of a power source. Gears almost always produce a change in torque, creating a mechanical advantage, through their gear ratio, and thus may be considered a simple machine. The teeth on the two meshing gears all have the same shape. Two or more meshing gears, working in a sequence, are called a gear train or a transmission. A gear can mesh with a linear toothed part, called a rack, producing translation instead of rotation.
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