A bidirectional exhaust dual screw vacuum pump device
By using a bidirectional exhaust symmetrically distributed twin-screw structure, the problems of bearing failure and high energy consumption in traditional twin-screw vacuum pumps are solved. The rotor axial force is self-balanced, improving reliability and lifespan, and enhancing pumping efficiency and cooling effect.
CN224469308UActive Publication Date: 2026-07-07JIANGYIN LIANZHOUQI DIE-CASTING FACTORY
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN LIANZHOUQI DIE-CASTING FACTORY
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-07
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Figure CN224469308U_ABST
Abstract
The utility model relates to a kind of two-way exhaust's double screw vacuum pump device, including pump body, the inside of pump body is equipped with a pair of left and right rotation symmetrical distribution and mutually meshed screw rotor: driving screw rotor and driven screw rotor, driving screw rotor and driven screw rotor are engaged by synchronous gear drive;Driving screw rotor and driven screw rotor are identical with middle part optical axis compartment, two ends are opposite screw section integral rotor, optical axis section of driving screw rotor and driven screw rotor is below the air inlet of pump body, and the air suction shunt chamber of inside middle part of pump body is formed in pump body.The utility model is balanced by symmetrical rotor design and two-way exhaust structure, realizes the self-balancing of rotor inside axial force, reduces the load of thrust bearing, improves the reliability, efficiency and life of complete machine.
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