| 摘要 |
The present invention relates to an apparatus for changing the length of a rake of a dust separator. The purpose of the present invention is to rake up a large inert matter by selectively changing the front and rear length of a rake when many inert matters are caught in front of a main screen and a front screen. The present invention includes: fastening holes vertically penetrating the rake and located on the left and right sides at a predetermined interval; a variable rake which changes the front and rear length of the rake by being arranged on the upper surface of the rake to be movable forward and backward and to the same shape as the rake and has a variable guide hole which vertically penetrates the variable rake and is long from the front to the rear by corresponding to a location of each fastening hole; a variable rake fastening means fastened by penetrating the variable guide hole of the rake and the fastening hole of the variable rake, but loosely fastened so as to move the variable rake back and force against the rake; a variable roller changing the length of the variable rake by being supported and installed on the variable rake, but installed to selectively move in a particular range from left to right; a variable roller supporting means supporting the variable roller on both sides of the lower surface of the rake to be rotated; a length extending guide trajectory which extends toward each upper surface of the frame from a predetermined height up to the same height by gradually rising from each end surface of the frame at a finishing point of the upper end of the front screen and guides the variable roller in the variable rake length extending direction; and a length reduction guide trajectory apart from the guide rail on the lower inner surface at a predetermined interval, having an arc shape, and guiding the variable roller in a direction of reducing the length of the variable rake. |
