| 摘要 |
FIELD: mining, construction engineering. ^ SUBSTANCE: invention relates to bucket for crushing and screening of stones and similar materials. Proposed bucket has housing with inlet hole for stones to be crushed and outlet hole for broken stones with stone flow passage and stone crusher. Stone crusher contains first clamping device and second clamping device arranged in bucket-like housing for movement relative to each other, and shifting device. Shifting device contains eccentric and eccentric drive. Drive of eccentric includes hydraulic motor connected with shaft by belt drive. Shaft is installed on bucket and it carries one eccentric to rotate shaft between extreme positions spaced through 180° of shaft turning to convey combination rotation and translational movement to first clamping device relative to second clamping device, first component of shifting is directed from and to second clamping device, and second component of shifting is parallel to direction of flow. ^ EFFECT: provision of effective crushing and increased capacity, insignificant clogging by crushed material. ^ 18 cl, 5 dwg
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