64results about How to "Prevent clogging" patented technology

The invention discloses a sorting screen of a combine harvester, which comprises a screen body, an eccentric drive mechanism and sliding mechanisms, wherein the eccentric drive mechanism is disposed below one end of a screen body, and the sliding mechanisms are symmetrically disposed on two sides of the other end of the screen body. The screen body comprises a screen frame, an upper mesh screen, a lower mesh screen, a corrugated plate and a plurality of sorting baffles. The eccentric drive mechanism comprises a crankshaft, a pair of connecting plates and a pair bearing blocks, wherein two ends of the crankshaft are supported inside the bearing blocks through bearings respectively, a crankshaft journal is fixedly respectively connected with the lower end of every one of the connecting plates in one pair, and the upper ends of the connecting plates in one pair are fixedly connected with the front bottom and the rear bottom of the screen frame respectively. The sliding mechanisms comprise sliding seats and rollers, wherein the rollers supported at the front and the rear of the screen frame are inlaid inside the sliding seats. The sorting screen is simple and compact in structure, threshed grains fall onto the whole screen surface and flow from the left to the right, and the left and the right of the screen are evenly stressed so that the screen is less prone to damage. The screen is small in size and large in sorting area, so that the overall weight of the harvester is lowered greatly, the overall reliability of the harvester is improved, and the grains are sorted effectively and efficiently.

The invention discloses a tunnel inclined shaft construction system and a construction method. The tunnel inclined shaft construction system involves a starting device, an inclined shaft TBM and a receiving device, wherein a follow-up transportation system is arranged inside an inclined shaft excavated by the inclined shaft TBM, the inclined shaft TBM comprises a tunneling main machine and a rearmatching part, and a safety anti-running device is arranged between the tunneling main machine and the rear matching part; and the tunneling main machine comprises a cutterhead, a main drive, a star-shaped beam and a muck discharging mechanism, the main drive is arranged on the star-shaped beam and connected with the cutterhead, a cutter conveying tool is arranged inside the star-shaped beam, andthe muck discharging mechanism corresponds to the cutterhead. The structural design of the tunnel inclined shaft construction system is suitable for large-gradient inclined shafts, and the construction method is simple and effective, improves efficient and safe starting of the inclined shaft TBM, is a great innovation of inclined shaft construction and has high popularization value.

The invention discloses a juicer screw structure with material scrapers. The juicer screw structure comprises a screw provided with a thread which spirally extends downwards from the top end of the screw, a skirt is arranged at the position, below the thread, of the bottom end of the screw, and the scrapers are arranged on the skirt and used for scraping and pushing residues of fruits and vegetables. The juicer screw structure with the material scrapers has the advantages that the juicer screw structure is simple; since accumulated residues can be effectively scraped and pushed to be discharged easily, residue blockage is avoided, wear of juicing parts due to the residues can be reduced, and service life of the juicing parts is prolonged.

The invention discloses a multi-cavity injection mould hardware mould inputting jig which comprises an element taking plate and an installation plate in parallel arrangement; the installation plate is installed above the element taking plate; the element taking plate and the installation plate are elastically connected through a plurality of elastomers; a first grip is arranged on the element taking plate; a second grip is installed on the installation plate; the element taking plate is provided with a plurality of embedding element clamp heads which are in uniform distribution; the embedding element clamp heads penetrate through the element taking plate and extend from the bottom surface of the element taking plate; the embedding clamp heads are of a hollow cylindrical shape matched with the shape of a hardware element; and the bottom surfaces (corresponding to the installation plate) of the embedding clamp heads are provided with a plurality of ejection columns inserted into the embedding element clamp heads. The multi-cavity injection mould hardware mould inputting jig has the characteristics that leisure time of operators can be reasonably utilized, the injection molding cycle is shortened, and the injection molding efficiency is improved; the invalid time of the operation of an injection molding machine is shortened, and blocking and chewing can be prevented; hardware can be safely enters a mold by utilizing the jig; and within the original effective time, hardware with the number four times, eight times or even more that of the original hardware can be input.