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Rotary Vane Vacuum Pump

A rotary vane vacuum pump and rotary vane technology, applied in the direction of rotary piston pumps, rotary piston machines, pumps, etc., can solve problems such as spring failure and vacuum pump damage, and achieve the effect of avoiding failure

Active Publication Date: 2017-12-15
CHANGZHOU WUJIN GUANGYU EMBOSSING ROLLER MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the utility model is: in order to overcome the problem that the rotating vanes in the inner cavity of the traditional vacuum pump are tightened by springs, and the springs will fail after long-term use, thereby causing damage to the vacuum pump, a rotary vane type is provided. vacuum pump

Method used

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  • Rotary Vane Vacuum Pump
  • Rotary Vane Vacuum Pump
  • Rotary Vane Vacuum Pump

Examples

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Effect test

Embodiment Construction

[0015] Now in conjunction with accompanying drawing, the utility model is described in further detail. These drawings are all simplified schematic diagrams, and only schematically illustrate the basic structure of the utility model, so they only show the configurations related to the utility model.

[0016] Such as Figure 1-4 A rotary vane vacuum pump shown includes a pump body 1, a sealing end cover 2 and a rotor rotary vane, the sealing end cover 2 is fixedly installed on both ends of the pump body 1, and the pump body 1 is provided with a valve communicating with the inner cavity. The suction channel 3 and the exhaust channel 4, the inner cavity of the pump body 1 is installed with a rotating shaft 5, and the upper circumference of the rotating shaft 5 is evenly distributed with telescopic rotor blades, and the ends of the two rotor blades are equipped with The slider 6 is provided with a slide rail 7 on the inner wall of the pump body 1 .

[0017] Both rotor vanes inclu...

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PUM

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Abstract

Provided is a rotary-vane vacuum pump; sealing end covers (2) are fixedly mounted on the two end faces of a pump body (1); the pump body (1) is provided with an air-suction channel (3) and air-exhaust channel (4) in communication with an inner chamber; the inner chamber of the pump body (1) is rotatably equipped with a rotating shaft (5); retractable rotor rotary vanes are evenly distributed on the circumference of the rotating shaft (5); the end sections of two rotor rotary vanes are provided with sliders (6); a slide rail (7) is provided in the circumferential direction of the inner wall of the pump body (1); the sliders (6) are slidably disposed in the slide rail (7); the end sections of the rotor rotary vanes are tangent to the inner wall of the pump body (1). The structure is a substitute for a spring, and prevents the failure that would occur after a long period of use of a spring and the resulting problem of damage to the vacuum pump.

Description

technical field [0001] The utility model relates to the technical field of vacuum pumps, in particular to a rotary vane vacuum pump. Background technique [0002] A vacuum pump is a device that uses various methods to generate, improve and maintain vacuum in a closed space. According to the working principle, it can be divided into water ring vacuum pump, Roots pump, rotary vane vacuum pump, etc. It is generally composed of pump body, rotor, rotary vane, end cover, spring, etc., and the eccentric setting in the inner cavity of the pump body There is a rotor, the outer circle of the rotor is tangent to the wall of the inner cavity of the pump, and two rotating vanes with springs are installed on the rotor. When rotating, relying on the centrifugal force and the tension of the spring to keep the top of the rotary vane in contact with the cavity wall of the pump body, the rotation of the rotor drives the rotary vane to slide along the cavity wall of the pump body, thereby chan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C25/02F04C18/344
CPCF04C18/344F04C25/02
Inventor 周琪
Owner CHANGZHOU WUJIN GUANGYU EMBOSSING ROLLER MACHINERY