The cam splitter is an intermittent mechanism that realizes dynamic stop motion, with significant characteristics such as high indexing accuracy, smooth operation, large transmission torque, self-locking during positioning, compact structure, small volume, low noise, good high-speed performance, and long service life. It is an ideal product to replace traditional mechanisms such as slot wheel mechanisms, ratchet mechanisms, incomplete gear mechanisms, and pneumatic control mechanisms.
Working principle of cam splitter:
The indexing cam installed in the input shaft is connected to the output tower, and the cam rollers embedded radially around the surface of the output tower make linear contact with the corresponding inclined cam cone support ribs. When the input shaft rotates, the cam roller rotates the output tower according to the given displacement curve and rolls along the inclined surface of the rib. In the area where the rib and cam end face are balanced, that is, in the static range, the roller is connected to its shaft, but the output tower itself does not rotate. Cone support ribs are usually in contact with two or three cams to eliminate elasticity between the indexing shaft and the cam structure.
Drive system:
The driving components connected to the input shaft of the splitter include pulleys, sprockets, synchronous pulleys, gears, couplings, etc. Due to load pulsation, the camshaft torque undergoes positive and negative changes within one week. The characteristics of a cam can only be effective when the camshaft rotates at a certain speed. Therefore, the instability of camshaft rotation significantly increases the torque of the splitter, which has a negative impact on intermittent motion. Therefore, camshafts cannot be driven by sliding belts, pulsating chains, and clearance gears. The use of belts or chains must be expanded. The precision of gear usage should be high to eliminate meshing clearance. Using synchronization has many advantages: it synchronizes with other actions; The conveyor belt and pulley have both friction and no gap; Low vibration, capable of achieving high speed; Choose a large-diameter pulley for better flywheel performance.
Generally speaking, the input axis of the splitter forms an axis input key connection structure. During the transmission process, due to the instability of various factors and driving factors, it is easy to generate loads. 2. During the communication process, the pulse impact with the shaft hole should be carefully adjusted. 1. Connected through flanges. Not only through this method, but also by avoiding connection with the shaft hole. Due to the intermittency of the output, there is a significant inertial force from rest to motion, from motion to rest. In addition, the mating clearance of the connector is often prone to loosening between the output end and the connector. Causing overshoot or hysteresis and vibration of the output driver. This not only reduces the output accuracy, but also seriously damages the splitter and its internal cam and needle roller bearings.