3results about How to "Improve walking efficiency" patented technology

The utility model belongs to wall -climbing robot technical field, concretely relates to a kind of magnetic type chassis and wall -climbing robot.The magnetic type chassis includes: connecting framework;Two track assemblies, respectively installed in the two sides of connecting framework;The track assembly includes: side plate, for connecting in the side of connecting framework;The side plate is obtuse triangle, its rear end acute angle and front end acute angle are respectively provided with driving wheel and driven wheel, its top angle obtuse angle is provided with tension pulley, and tension pulley is located in the rear side of the median line of the bottom side of side plate;And magnetic track, install on driving wheel, driven wheel and tension pulley.By setting tension pulley to be closer to driving wheel in horizontal direction, by such design combination driving assembly's installation position of driving wheel, the gravity center of magnetic track is overall backward, to this offset the influence that overall gravity center is moved forward because work module is installed in front portion, ensure that wall -climbing robot reliably adheres and stably moves, improve walking efficiency.

The application discloses a caterpillar self-propelled rotary cultivator, which comprises a chassis system, a power system, a transmission system and a rotary cultivator device. The chassis system comprises a frame assembly, a walking driving mechanism and a walking caterpillar assembly. The walking driving mechanism comprises a gearbox arranged at the front end of the frame assembly. The walking caterpillar assembly comprises caterpillars arranged at the left and right sides of the frame assembly, a driving wheel drivingly connected with the output end of the gearbox, rear wheels supporting the caterpillars and a plurality of supporting wheels. The power system comprises an engine and a fuel tank. The engine is arranged on the frame assembly and drivingly connected with the output end of the gearbox. The fuel tank is arranged on the frame assembly. The transmission system comprises a PTO transmission box and a rear output transmission shaft. The input end of the PTO transmission box is drivingly connected with the output end of the engine, and the rear output end of the PTO transmission box is connected with the rear output transmission shaft. The rotary cultivator device is arranged at the tail of the chassis system. Compared with the prior art, the application realizes comprehensive improvement in power transmission, structural layout, driving experience and operation adaptability.

The application discloses a walking hydraulic system and an engineering vehicle. The walking hydraulic system comprises first and second oil ports connected with a shunt valve respectively; a motor circuit comprising first, second, third and fourth motor circuits connectable between the shunt oil port of the shunt valve of the first oil port and the second oil port; a reversing valve group comprising a plurality of reversing valves dispersedly arranged in a hydraulic oil circuit and used for switching a series working state or a parallel working state of the motor circuit; in the parallel working state, the first and third motor circuits are arranged in parallel, and the second and fourth motor circuits are arranged in parallel; in the series working state, the second and third motor circuits are arranged in series, and the first and fourth motor circuits are arranged in series. The engineering vehicle and the walking hydraulic system thereof can switch the connection mode of front and rear motors between series and parallel, the motor oil flow in the series state is doubled compared with the motor oil flow in the parallel state, and the walking speed is increased.