Cyclic forward and reverse variable speed vacuum compressor

Abstract

The invention belongs to vacuum compressors and relates to a circulating type forward and reverse speed changing vacuum compressor. The circulating type forward and reverse speed changing vacuum compressor is characterized in that a vacuum compression device is driven by a forward and reverse speed changing electric transmission mechanism, the forward and reverse speed changing electric transmission mechanism drives a forward and reverse speed changing transmission device through a motor driving assembly, wherein the forward and reverse speed changing transmission device is composed of a reducing assembly, a forward and reverse rotation gear assembly, a direction changing device and an increasing device; the electric transmission device which is processed under high speed, speed reduction, direction changing and speed increasing drives the tandem piston unit of the vacuum compression device to move reciprocatingly inside the a hydraulic compression cylinder. The circulating type forward and reverse speed changing vacuum compressor achieves the efficient function of integrating vacuumization and compression and is reasonable in design and compact in structure, can achieve forward and reverse direction changing and speed increasing and has the advantages of having a high-speed driving function, improving the vacuumization and compression efficiency, being reliable in performance and stable in operation and the like.

Description

technical field [0001] The invention belongs to vacuum compression machinery, in particular to a circulating forward and reverse direction-changing and speed-changing vacuum compressor. 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 transmission will inevitably cause vibration and n...

AI Technical Summary

Problems solved by technology

Although the screw reciprocating vacuum compressor has improved compared with the structure of the above-mentioned reciprocating vacuum pump and reciprocating compressor, the main disadvantage is that the jaw clutch is easy to disengage during normal operation and the electric transmission device cannot operate under high speed conditions. Carrying out normal work restricts the efficiency of vacuuming and compressing functions of the vacuum compressor; The forward and reverse variable speed vacuum compressor is driven by a motor drive assembly composed of a machine base, a motor and a belt drive. The forward and reverse variable speed transmission device includes a reduction device, a forward and reverse gear Synchronous drive mechanism, forward and reverse direction changing device and speed increasing device, wherein the forward and reverse direction changing device includes a forward and reverse direction changing gear mechanism and a direction changing main shaft mechanism; the forward and reverse direction changing gear shaft mechanism consists of a direction changing gear shaft, a The direction changing gear, the upper and lower shaft sleeves, the direction changing roller key, the duckbill key, the b direction changing gear, the upper and lower end covers, the overrunning clutch and the overrunning clutch cover; Composition of C-reversing gear, D-reversing gear, B-reversing gear, commutator and buffer

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