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Single-stage rotary vane type vacuum pump

A rotary vane vacuum pump, single-stage technology, applied in the direction of rotary piston pumps, rotary piston machines, pumps, etc., can solve the problems of small effective volume of vacuum suction, inconsistent contact sealing pressure, and different contact sealing effects , to achieve the effects of increased vacuuming speed, reliable contact and sealing, and high vacuuming degree

Inactive Publication Date: 2014-11-05
NANTONG GUANGXING PNEUMATIC EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantages of this single-stage rotary vane vacuum pump with multi-rotor rotor structure are: 1. The effective volume of vacuum suction is small, and its maximum effective volume generally does not exceed one-half of the effective volume of the vacuum pump body cavity. ;2. The rotor and the pump body are set eccentrically, the contact sealing pressure between the rotor blade and the pump body is inconsistent, the contact sealing effect is different, and there is a phenomenon of gas leakage

Method used

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  • Single-stage rotary vane type vacuum pump

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Embodiment Construction

[0009] Such as figure 1 , figure 2 and image 3 In the shown embodiment, a single-stage rotary vane vacuum pump with only one rotary vane 22 provided on the rotor 2 is composed of a pump casing, a rotor 2 and a motor 6 . The pump casing includes a pump body 1 , a left pump cover 3 , a right pump cover 4 and a safety cover 5 . A vacuum suction port 11 and an exhaust port 12 are provided on the pump body 1 , and a gas-liquid separator 121 is provided on the exhaust port 12 . It is characterized in that: a groove 13 is provided on the inner circular surface of the pump body 1 between the suction port 11 and the exhaust port 12, and a spacer 15 is arranged in the groove 13, and the lower right side 151 of the spacer 15 is aligned with the The outer circular surface of the rotor 2 is in contact, the left end of the spacer 15 is connected with the rotatable small shaft 14 placed on the left pump cover 3 and the right pump cover 4, and the left end of the small shaft 14 is connec...

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Abstract

A single-stage rotary vane type vacuum pump. The pump round face between a pump suction port and an exhaust port is provided with a groove; the groove is provided inside with a spacer; the lower right edge of the spacer contacts the outer circular surface of a rotor, and the left end of the spacer is connected with a small shaft; the left end of the small shaft is connected with a rotating arm arranged on the outer side of a left pump cover; the rotor is an eccentric one, a rotary vane is arranged at the maximum eccentric radius, and one end of the rotary vane is in contact with the inner circular surface of the pump body; the rotating shaft of the rotor is in coaxial arrangement with the inner circle of the pump body, and the left end of the rotating shaft is respectively connected with a control handwheel arranged on the outer side of the left pump cover and a rotor balance block; and the control handwheel is provided with a lug boss, the lug boss controls a spiral arm to drive the pacer to return to the groove instantly at each rotation, without touching the rotary vane. The single-stage rotary vane type vacuum pump with rotor provided with only a piece of the rotary vane has significant characteristics of large effective volume for vacuum suction, good sealing performance of rotary vane, high degree of vacuum for the container, and high speed.

Description

technical field [0001] The invention relates to a single-stage rotary vane vacuum pump, in particular to a single-stage rotary vane vacuum pump with only one rotary vane in the rotor. Background technique [0002] At present, in the domestic vacuum pump manufacturing industry, as far as single-stage rotary vane vacuum pumps are concerned, the rotors generally have two, three, or more than three rotary vanes. For example, the patent number is 2005200725337 single-stage rotary vane vacuum pump and the patent number is 2009201880817 single-stage rotary vane vacuum pump, the rotary vanes in the rotor are two pieces; and the patent number is 2009202316412 A small single-stage rotary vane vacuum pump , there are three rotating vanes in the rotor. The main disadvantages of this single-stage rotary vane vacuum pump with multi-rotor rotor structure are: 1. The effective volume of vacuum suction is small, and its maximum effective volume generally does not exceed one-half of the effe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C18/344F04C25/02
Inventor 高雪峰
Owner NANTONG GUANGXING PNEUMATIC EQUIP
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