3results about How to "Efficient power" patented technology

The utility model relates to steel pipe machining technical field, concretely relates to a steel pipe end portion grinding machine. It includes work platform, and the upper surface of work platform is equipped with guide rail, and the upper surface of guide rail is equipped with recess, and the lateral wall of guide rail is equipped with electric telescopic handle, and the bottom surface of installation board is connected, and the lateral wall of installation board is equipped with clamping subassembly, and the upper surface of work platform is equipped with mount, and the upper surface of mount is equipped with grinding assembly, and the different size steel pipes are fixed through clamping subassembly, and the center of different size steel pipes is kept on the same horizontal line with the center of grinding assembly. The utility model discloses through the ball screw design of the biaxial surface structure V -shaped groove of adaptation different diameter steel pipe, realizes the synchronous relative movement of clamping block through the rotation of torsion block, and the operation is simple and convenient and the clamping force is even, and the geometric self -centering principle is ensured steel pipe axis and grinding assembly alignment, avoids the grinding uneven or damage due to the offset of steel pipe.

This invention relates to the field of vehicle engineering technology and discloses a power unit for a motor vehicle auxiliary power-assisted range system. The system includes an outer wheel rim, an inner wheel rim installed inside the outer wheel rim, a power mechanism fixedly connected inside the outer wheel rim, a sealing rubber fixedly connected to the outside of the inner wheel rim, a pre-fixing mechanism fixedly connected to the left side of the sealing rubber, and a power mechanism including multiple rim stabilizers. The distal sides of each of the rim stabilizers are fixedly connected to the inside of the outer wheel rim. A pressure bladder is fixedly connected inside the outer wheel rim, a cylinder stabilizer is fixedly connected to the inner wall of the pressure bladder, and a spring is fixedly connected to the inner wall of the pressure bladder. In this invention, the tire causes the pressure bladder to periodically compress and stretch the outer wheel rim, inner wheel rim, and rim stabilizers, thereby efficiently converting gravitational potential energy into high-pressure fluid pressure energy and storing it.

A work vehicle including: an engine (1); a speed changing apparatus (18) that includes a hydrostatic stepless speed changing mechanism (18A) and is configured to subject motive power transmitted from the engine (1) to speed changing and output the motive power; a travelling apparatus configured to travel on the motive power received from the speed changing apparatus (18); a speed detector (27) configured to detect a speed of the travelling apparatus (6, 7); a pressure detector (25, 26) configured to detect a hydraulic pressure in a closed circuit of the hydrostatic stepless speed changing mechanism (18A); and a controller (80) configured or programmed to: determine, by means of a determination module (81), whether or not a swashplate angle of the hydrostatic stepless speed changing mechanism (18A) is an angle suitable for stopping the work vehicle, based on the speed and the hydraulic pressure; and change the swashplate angle by means of an angle control module (82), based on a result of the determination by the determination module (81).