2results about How to "Flexible drive mode" patented technology

The invention discloses a gecko-like magnetic control reversible attachment / desorption device, which comprises a substrate layer made of a magnetic composite material, bionic cilia and adsorption discs, a plurality of bionic cilia are arranged on the surface of the substrate layer, one end of each bionic cilia is connected with the surface of the substrate layer to form an inclined included angle, and the other end of each bionic cilia is connected with one adsorption disc. The device not only has the bionic characteristic of a gecko, but also has the capability of being controlled by using an external magnetic field, is flexible and diverse in driving mode, has good deformation performance, can bear larger deformation and tension without being damaged, and has the characteristics of small size, easiness in control and production, quick response and the like. The invention further discloses a preparation method of the adsorption disc, the adsorption disc can be automatically formed based on a magnetic surrounding aggregation mechanism, the adsorption disc has the advantages of being low in cost and easy to obtain, the preparation process is simple and efficient, and batch production can be achieved.

The application discloses a magnetorheological and latch integrated locking device, which comprises at least one clamping arm installed on a pipe pulling machine and used for locking a joint pipe, the clamping arm comprises oppositely installed first and second arc-shaped arms which are hinged, and a second telescopic rod used for driving; and further comprises a latch mechanism and a magnetorheological mechanism, wherein the magnetorheological mechanism comprises a magnetorheological liquid bag installed close to an inner side wall and an excitation coil used for providing a strong magnetic field. The magnetorheological flexible and close locking and the latch mechanical clamping locking structure are integrated, and the two structures are in cooperation, so that the joint pipe is effectively prevented from slipping, moving and accidentally falling during the pulling process, the locking reliability is greatly improved, and the operation requirement of the pipe pulling machine for large load pulling is met.