Combined rotary vane of mechanical vacuum pump
A mechanical vacuum pump, combined technology, applied in mechanical equipment, rotary piston machinery, components of pumping devices for elastic fluids, etc. Strength, cost saving, effect of reducing usage
Pending Publication Date: 2021-06-29
湖南腾智机电有限责任公司
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- Description
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Problems solved by technology
The disadvantages of this structure are: the amount of PEEK material used is too much; the rotary vane and the vane are sliding fit, and the bonding strength between the two is poor
Method used
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[0025] In order to make the invention, the technical solutions and advantages will be apparent from the accompanying drawings and specific examples. It will be appreciated that the specific embodiments described herein are intended to explain the present invention, and is not limited to the present invention.
[0026] In the description of the invention, it is to be understood that the terms "center", "longitudinal", "horizontal", "length", "width", "thickness", "upper", "under", "front", " After "," left "," right "," vertical "," horizontal "," top "," bottom "," inside "," outside ", etc.," inside "," outside ", the orientation relationship is based on the orientation shown by the drawings. Or the location relationship is intended to facilitate the description of the present invention and simplified description, rather than indicating or implying that the referred to means must have a specific orientation, and is constructed and operated in a particular direction, so it is not ...
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The invention provides a combined rotary vane of a mechanical vacuum pump. The combined rotary vane comprises a rotary vane body and a blade; the left end and the right end of the rotary vane body continue to extend leftwards and rightwards to form protruding parts; the thickness of the protruding parts is smaller than that of the rotary vane body; the two side faces and the top face of each protruding part are each provided with an axial groove; and the outer circumferential face of each protruding part and the three grooves are wrapped and filled with PEEK materials in an injection molding manner, and therefore the blade is formed. Due to the fact that the structure, used for connecting the blade, of the left end and the right end of the rotary vane body is changed into outward protruding from traditional inward concave, the three grooves are formed in each protruding part, then the PEEK materials are used for conducting injection molding wrapping on the protruding parts at the two ends of the rotary vane body, and therefore the blade is formed; and in the abovementioned way, the use amount of PEEK is greatly reduced inevitably, and cost is saved. Meanwhile, due to the existence of the three grooves, the three grooves are filled with the PEEK materials inevitably during injection molding, the blade and the protruding parts of the rotary vane body are embedded, and therefore the bonding strength of the blade and the rotary vane body obtained after injection molding is effectively guaranteed.
Description
Technical field [0001] The present invention relates to a rotary piece of a mechanical vacuum pump. Background technique [0002] Auto vacuum boost system is generally equipped with a mechanical vacuum pump to extract vacuum for vacuum booster, and help the brake system. Common mechanical vacuum pumps are determined according to the engine with the highest speed of the engine, in which a single rotary sheet mechanical vacuum pump is more popular. [0003] Since the vacuum pump typically drives the rotor by the crankshaft or camshaft through the coupling, the rotor drives the rotation of the rotation, the left and right ends of the rotor, and the pump chamber is friction, while ensuring the wear resistance of the slider, it is also necessary to reduce the rotation The turning inertia of the sheet is reducing the driving torque of the mechanical vacuum pump, thereby reducing the engine power consumption. Based on the above requirements, it is generally used as the end of the slider...
Claims
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IPC IPC(8): F04C29/00F04C18/344F04C25/02
CPCF04C18/344F04C25/02F04C29/00F04C2240/20
Inventor 刘振董仁泽
Owner 湖南腾智机电有限责任公司