GrabCAD 模型信息
RASSOR Bucket Drum · 模型 267848
In this mechanism, a number of small buckets are placed on the side surface of a cylinder. By rotating the cylinder around its axis, these buckets are filled with soil at the lowest point of the cylinder and begin to unload into the reservoir at the highest point. The reservoir is made of two shells on top of each other. When loading is completed, the outer shell rotates 180 degrees around the main axis and, like a cap, prevents the soil from spilling out when moving. Also, during the time of emptying, the inner shell begins to rotate and in a very short time it empties the soil. Volumetric capacity of a small bucket is 0.11 lit and 16 of them are placed on the circumference. If the mechanism rotates at a speed of 20 rpm, its 25-liter capacity will be filled within 45 seconds and it will be completely empty in about 3 seconds. If the whole body is made of titanium, the total mass of the structure will be only 2840 g. The volume capacity of the soil reservoir is about 25 liters and even more. Advantages I. Since narrow ducts and grooves are not used, there is no possibility of clogging. II. Since the soil reservoir is stable and does not need to be rotated, less force is required and energy consumption is saved. III. The volume to mass ratio is high and the loading and unloading time is short. IV. Since the buckets are symmetrically arranged in a row, they do not produce lateral force.
- 格式
- Rendering、Other、STL、STEP / IGES
- 分类
- Aerospace、Construction、Robotics
- 标签
- nasadrumchallenge、rassor、drum、challenge、nasa、excavator、bucket
- 数据更新
- 2026-09-30T08:20:46Z