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What are the differences between gear reducers and clutches (1) Posted by : admin / Posted on : Nov 23, 2019

The biggest feature of the planetary hydraulic power shift gear reducer is that the loader only needs two forward gears and one reverse gear, which can realize the full shifting effect of loading, driving and retreating, making the loader extremely active. Adapt to the regulation of external resistance. When the loader is in a normal high forward and reverse speed, the overrunning clutch automatically separates the two turbines independently, that is, the power output by the secondary turbine passes the power through the secondary output gear and the intermediate input shaft. Each gear position enables the load performance to achieve variable speed travel, thus achieving material agility transfer. When the loader suddenly increases in external resistance during the shovel pretending process, for example, when the shovel is loaded with large materials, the overrunning clutch automatically lowers the rotational speed and increases the torque under the cooperation of the twin-turbo torque converter, so that the wheel occurs enough. The power to perform normal shovel work.
When the dragging resistance is quite large, the structural characteristics of the overrunning clutch will be more fully displayed. At this time, the overrunning clutch will actively be in a complete wedge condition, that is, the outer ring gear, the inner ring cam, and the intermediate input shaft form one. The rigid body, the first and second turbines of the torque converter work at the same time, and all the generated torque is transmitted to the overrunning clutch, the gear reducer, the outer ring gear and the intermediate input shaft simultaneously transmit power to the gearbox. The loader often exhibits wheel-side slip, which is generally referred to as the "stall" condition, which is achieved by the characteristics of the over-rotating clutch application of the twin-turbo torque converter. The torque converter pump wheel is driven by the high-speed rotation of the mobilizer, and the torque converter is The secondary turbine speed is zero, and the torque output at this time is the maximum value, and the driving force of the loader wheel is also the maximum value. The general 50 loader can generate more than 13 tons of driving force. The overrunning clutch of the planetary gearbox is applied by its own one-way separation and cooperation, and the external characteristics of the torque converter are used to achieve the above-mentioned active adaptation to the external working conditions. See the torque converter characteristic map and the overrunning clutch working diagram. It is seen from the external characteristic diagram of the torque converter that the torque is the maximum when the turbine speed is zero.

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