Dual Rotor Piston Drive

Abstract

The invention discloses a double-rotor piston driving device. The double-rotor piston driving device comprises a device body, a rotor assembly, a piston assembly and a flow distribution mechanism; thedevice body is provided with an accommodating cavity which is V-shaped in the axial direction, the rotor assembly has a double-rotor structure and comprises a first rotor and a second rotor which arerotatably arranged at the two ends of the V-shaped accommodating cavity, and a first piston cavity and a second piston cavity are separately correspondingly and eccentrically formed in the first rotor and the second rotor; the piston assembly comprises a first piston arranged in the first piston cavity, a second piston arranged in the second piston cavity and a piston connecting rod of which thetwo ends are separately connected with the first piston and the second piston in the axial direction; and the piston connecting rod has a V-shaped structure of which the phase is the same as that of the accommodating cavity. By the double-rotor piston driving device, the structure can be simplified, a spatial arrangement mode is optimized, and load transmission is improved; and the rotors and thedevice body can further be integrated with magnets or armatures separately in a fused manner, and thus, an electromechanical fused driving device is constructed.

Description

technical field [0001] The invention relates to the field of transmission drive, in particular to a double-rotor piston drive device. Background technique [0002] In the modern industrial system, the piston drive mechanism is the core mechanism of key equipment such as engines, compressors, and piston pumps. It is the key to energy conversion and transmission, and the crankshaft-connecting rod piston drive mechanism is the most widely used. But even the long-standing crankshaft-connecting rod piston drive mechanism is not perfect, and it mainly has the following defects: [0003] 1. Crankshaft connecting rod type piston drive mechanism, the crankshaft structure is complex, the processing and manufacturing process requirements are high, and the manufacturing cost is high; a complicated crankcase and its supporting accessories are required. As the number of pistons increases, the system structure is drastically complicated. [0004] 2. The rotation of the crankshaft and the ...

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Problems solved by technology

[0003] 1. Crankshaft connecting rod type piston drive mechanism, the crankshaft structure is complicated, the processing and manufacturing process requirements are high, and the manufacturing cost is high; a complicated crankcase and its supporting accessories are required. With the increase of the number of pistons, the system structure is drastically complicated

[0004] 2. The rotation of the crankshaft and the swing of the connecting rod occupy a large space, resulting in a large crankcase; in addition, the piston is arranged linearly along the crankshaft, resulting in an uncompact overall structure of the system; the more pistons need to be supported, the longer the crankshaft, the longer the system length, and the crankshaft load worse performance

[0005] 3. When the crankshaft, connecting rod and piston are running, there is an angle between the connecting rod and the axis of the piston, and a large deflection angle is formed under the condition of large force, which forms a radial thrust on the piston, increases mechanical loss, and increases wear of the piston / cylinder liner

[0006] 4. The existing electromechanical hybrid devices are all independent power machinery and independent motors, which are combined in series and parallel under the cooperation of the transmission mechanism. The electromechanical matching is poor, the coupling is difficult, the structure fusion is low, and the entire system structure is complicated. Large size, low power-to-weight ratio

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