37results about How to "Guaranteed flexible contact" patented technology

The invention provides a flexible joint bearing structure. The flexible joint bearing structure effectively ensures that an outer ring of a joint bearing is in flexible contact with a shell during mechanical connection, effectively avoids the bearing damage caused by the abrasion of a bearing in use, and prolongs the service life of the bearing, thereby reducing the production cost. The flexible joint bearing structure comprises an outer ring and an inner ring and is characterized in that the outer ring is made from a flexible material.

The invention discloses a floating type leaf-stripping roller for a sugar cane harvester. The floating type leaf-stripping roller comprises a power input shaft, a roller rack, a leaf-stripping plate, clamping plates, a limit spring and the like. Six rib plates are radially welded to the roller rack. A plurality of mounting holes and spring limit holes are evenly distributed in each rib plate. The longitudinal section of the leaf-stripping plate is of an inverted-T shape, the upper portion of the leaf-stripping plate is evenly provided with V-shaped grooves, and a plurality of protruding teeth are machined in each V-shaped groove. The L-shaped clamping plates are provided with a plurality of mounting holes corresponding to the rib plates. The leaf-stripping plate is elastically connected with the rib plates through a plurality of limit springs mounted in the spring limit holes. The clamping plates are mounted on two sides of the rib plates of the roller rack through bolts and clamp the leaf-stripping plate. The floating type leaf-stripping roller has the advantages that the adaptability of the leaf-stripping roller to sugar canes of various diameters can be improved effectively, the contact area of the V-shaped grooves and the sugar canes is increased, flexible contact of the sugar canes and the leaf-stripping roller is guaranteed, sugar cane blocking and breaking probability is lowered, and stripping efficiency is increased.

The invention provides a checking fixture for measuring the depth of a bottom hole of a valve retainer of an engine cylinder cover, and the checking fixture is used for completing detection of the depth size of the bottom hole of the valve retainer of the engine cylinder cover. The checking fixture comprises a measurement execution mechanism, a displacement transmission mechanism, a support and control mechanism and a measurement data display mechanism, wherein the measurement execution mechanism comprises a guide measuring rod, a flange base and a flange cover; the guide measuring rod is located at the lower end of the checking fixture and consists of a measuring head and a connection base; the bottom face of the connection base is a test reference surface; the top end of the connection base is fixedly connected with the corresponding element of the support and control mechanism; the flange base is in an inverted disk structure; a large round hole is arranged on the top face of the flange base, and the bottom face of the flange base is provided with a measuring face; the flange cover is fixedly mounted on the top face of the flange base; and a disk-shaped groove is arranged at the center of the flange cover; and the disk-shaped groove is connected with a peripheral framework through three ribs. The checking fixture disclosed by the invention has the advantages of compact structure and simplicity in operation. The detection precision of a working piece to be measured can be ensured, and the service life of the checking fixture is prolonged.