Speed increase gear drive mechanism of speed increase device of circulation type forward and backward turning and variable speed vacuum compressor

Abstract

The invention belongs to a vacuum compressor, and particularly relates to a speed increase gear drive mechanism of a speed increase device of a circulation type forward and backward turning and variable speed vacuum compressor. The speed increase gear drive mechanism comprises an output shaft, an output gear, a main turning shaft, a turning gear, a speed increase gearbox and a turning case, and is characterized in that a speed increase gear drive mechanism body is installed on the output gear of the output shaft and composed of a first transition gear shaft, a first transition gear, a second transition gear, a second transition gear shaft, a third transition gear and a fourth transition gear, the first transition gear shaft is provided with the first transition gear and the second transition gear sequentially, the third transition gear and the fourth transition gear are sequentially installed on the second transition gear shaft, the output gear is meshed with the third transition gear, the fourth transition gear is meshed with the first transition gear, and the second transition gear is meshed with the turning gear of the main turning shaft. The speed increase gear drive mechanism is reasonable in design and compact in structure, and has the advantages of being high in speed increase transmission ratio, stable and reliable in transmission performance, capable of improving the vacuum pumping efficiency and compression efficiency of the vacuum compressor, and the like.

Description

technical field [0001] The invention belongs to vacuum compressors, in particular to a speed-increasing gear transmission mechanism of a cycle-type forward and reverse variable-speed vacuum compressor speed-increasing device. Background technique [0002] At present, in mechanical products, such as mechanical transmission devices of reciprocating vacuum pumps and reciprocating compressors, most of its structures adopt motors, belt transmissions to drive crankshafts and eccentric wheel-type transmission mechanisms. The reciprocating motion is realized by using the slider and the connecting rod to cooperate to push the piston. Due to the restriction of the above-mentioned transmission mode, the distribution form of the cylinder body can only be V-shaped, fan-shaped or parallel twin-cylinder type. Due to the periodic inflection point or dead point in the transmission of the crankshaft and the eccentric wheel—that is, the dead point where the output torque is "0"; the transmissi...

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Problems solved by technology

Although the screw reciprocating vacuum compressor has improved compared with the structure of the above-mentioned reciprocating vacuum pump and the reciprocating compressor, there are still some shortcomings and deficiencies in its transmission device. It is easy to disengage and its transmission device cannot work normally under high-speed conditions, which restricts the efficiency of the vacuuming and compression functions of the vacuum compressor; The forward and reverse variable speed vacuum compressor is a circular forward and reverse variable speed vacuum compressor. The variable speed transmission device includes a reduction device, a forward and reverse gear synchronous drive assembly, a forward and reverse reversing device and a speed increasing device, among which

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