CN111734633A - Rotary-vane electronic air pump - Google Patents

Rotary-vane electronic air pump Download PDF

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Publication number
CN111734633A
CN111734633A CN202010750936.1A CN202010750936A CN111734633A CN 111734633 A CN111734633 A CN 111734633A CN 202010750936 A CN202010750936 A CN 202010750936A CN 111734633 A CN111734633 A CN 111734633A
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China
Prior art keywords
air
cover plate
symmetrical
pump
stator
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CN202010750936.1A
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Chinese (zh)
Inventor
陈秋旭
张彧
杨德桢
王晶晶
曲湄钰
赵兴龙
杨恒兆
林晓雨
其他发明人请求不公开姓名
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Individual
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Individual
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Priority to CN202010750936.1A priority Critical patent/CN111734633A/en
Publication of CN111734633A publication Critical patent/CN111734633A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
    • F04C18/3446—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
    • F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/10—Stators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/20—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)

Abstract

The application discloses rotor plate electron aspiration pump, including the pump body, connecting seat and motor, the pump body includes stator, rotor shaft, rotor plate, upper cover and lower cover, establishes "petal" shape cavity in the stator, and the petal number is N, and the rotor shaft set up with one heart in the cavity, space between stator and the rotor shaft constitutes a N pump chamber, and each pump chamber correspondence is provided with 2 air inlets and 2 gas outlets, and the upper cover plate graphite flake all is equipped with the air inlet of 2N symmetries and the gas outlet of 2N symmetries with the lower cover plate graphite flake promptly, has generally formed 2N way inlet air flow and 2N way outlet air flow. One end of the rotary sheet is positioned in the rotary sheet groove, and the other end of the rotary sheet is abutted against the cavity wall of the petal-shaped cavity; the stator is provided with an air inlet nozzle, an air outlet nozzle, an air inlet group and an air outlet group, and the upper end surface of the stator is provided with a non-through air inlet groove communicated with the air inlet nozzle; the lower end surface of the stator is provided with a non-through air outlet groove communicated with the air outlet hole nozzle. This application can effectively improve the volume utilization ratio weight reduction of pump.

Description

Rotary-vane electronic air pump
Technical Field
The application relates to the field of air pumps and air compressors, in particular to a rotary vane electronic air pump.
Background
On the occasions of air sampling and the like of an air compressor for compressing air to do work or an environment monitoring instrument, a rotary vane air pump with high efficiency, small volume, light weight, high air pumping negative pressure and stable flow is needed. At present, the rotary vane air pump for environmental monitoring sampling is the pump body structure of eccentric formula mostly, rotor off-centre sets up in stator inner chamber promptly, constitute the variable volume air chamber of air pump, nevertheless because there is the eccentricity in the rotor of eccentric formula rotary vane air pump for the stator, there is the eccentric force in the rotor when the inside high-speed rotation of stator, the eccentric force makes the vibration of rotor increase, can aggravate the friction between rotor and the stator and generate heat, lead to the energy consumption of rotary vane air pump to increase, efficiency descends, and reduce the life of rotary vane air pump. The vane rotary air pump with the symmetrical structure can eliminate the eccentricity and the eccentric force, has the advantages of more reasonability and higher efficiency, and is the first choice of the air sampling air pump in the new generation of atmospheric environment monitor.
An electronic vacuum pump for a new energy vehicle brake vacuum booster disclosed in chinese patent with publication number CN103306979B, the vacuum pump adopts a support base with a complex structure, and an air inlet pipe and an air outlet pipe are arranged on the base, when the vacuum pump works, air enters from the air inlet pipe of the support base, after being buffered by an air storage cavity of the support base, the vacuum pump is divided into two paths, namely left and right paths, which respectively enter two air inlet grooves of a lower cover of a pump chamber, and a part of the air enters an air inlet through hole of the pump chamber (i.e. a stator) from bottom to top, reaches an air inlet groove of an upper cover of the pump chamber, and then enters an inner cavity of the pump chamber from top to bottom through; the other part of the gas enters the inner cavity of the pump chamber through the diversion trench communicated with the other part of the gas. The gas entering the closed inner cavity of the pump chamber is finally discharged from the gas outlet pipe of the support base, and a four-inlet two-outlet gas path is formed. The rotary-vane vacuum pump with the symmetrical structure only has 2 air cavities, the structure of a supporting base is complex, an air inlet pipeline and an air outlet pipeline are all concentrated on the supporting base, when the vacuum pump works, the air cavities relate to parts such as the supporting base, a stator, a rotor, a rotary vane, a pump chamber upper cover, a pump chamber lower cover, a pump body cover, a driving sleeve and the like, and the sealing performance of the pump can be influenced due to the fact that the number of the parts related to the air cavities is large. In order to improve the sealing performance of the pump body, a special-shaped sealing ring or a plurality of annular sealing rings are required to be arranged on the supporting base, the sealing rings are extremely easy to age and deform, the air tightness of the vacuum pump cannot be guaranteed for a long time, and once the vacuum pump leaks air, the performances of the pump, such as air exhaust flow rate, flow stability and the like, can be reduced.
The rotary vane electronic air pump disclosed in chinese patent No. CN209704843U also adopts 2 symmetrically arranged air cavity structures, and this kind of structure only has 2 air cavities, and its volume utilization rate has obvious difference from the rotary vane vacuum pump with N cavities symmetrically arranged (N ═ 3,4,5,6,7, 8). Under the condition of the same outer diameter and size, the space utilization rate of the pump with the 2 cavities symmetrically arranged is obviously lower than that of the pump with the multiple cavities symmetrically arranged, and the air inlet amount and the air outlet amount of the pump with the 2 cavities are also lower than those of the pump with the N cavities.
Disclosure of Invention
The application provides a vane rotary electronic air pump to solve the problem that the vane rotary vacuum pump weight of current symmetrical formula structure is great, volume utilization is low, the leakproofness is lower.
The application provides a rotor blade electronic air pump, including the pump body, connecting seat and motor, the pump body with the motor passes through the connecting seat is connected, the pump body includes stator, rotor shaft, rotor blade, upper cover plate graphite flake and lower cover plate graphite flake, lower apron, the rotor shaft is the step axle, and the biggest external diameter part of step axle is rotor part, is equipped with a plurality of lining up rotor blade grooves along circumference evenly distributed on the rotor, the rotor blade inslot is equipped with the rotor blade respectively, be equipped with "petal" shape cavity of mutual symmetry on the stator, the rotor sets up with one heart in the cavity of "petal" shape, the diameter of rotor equals the minor diameter of "petal" shape cavity, "the figure of petal" shape cavity is N, the stator with the space between the rotor constitutes N pump chamber, the one end of rotor blade is located the rotor blade inslot, the other end of the rotary sheet is abutted against the cavity wall of the petal-shaped cavity; setting the number of the through air inlet hole groups and the number of the through air outlet hole groups according to the number of the pump cavities;
the stator is provided with air inlet hole nozzles, air outlet hole nozzles, N rows of symmetrical through air inlet hole groups and N rows of symmetrical through air outlet hole groups, the upper end surface of the stator is provided with a non-through annular air inlet groove, and the non-through annular air inlet groove is communicated with the air inlet hole nozzles; the lower end face of the stator is provided with a non-through annular gas outlet groove which is communicated with the gas outlet hole nozzle; the non-through annular air inlet groove and the non-through annular air outlet groove are formed in the upper end face and the lower end face of the stator along the circumference of the end faces respectively, so that the weight of the pump body can be effectively reduced; the stator is provided with N rows of symmetrical through air inlet hole groups and N rows of symmetrical through air outlet hole groups, so that the weight of the pump body can be effectively reduced;
the N rows of symmetrical through air inlet hole groups are positioned between the inner wall of the stator petal-shaped inner hole and the inner wall of the non-through annular air inlet groove and are not communicated with the stator petal-shaped inner hole and the annular non-through air inlet groove; the N rows of symmetrical through air outlet hole groups are positioned between the stator petal-shaped inner hole wall and the circular non-through air outlet groove wall and are not communicated with the stator petal-shaped inner hole and the circular non-through air outlet groove, and the number of holes in each row of through air inlet hole groups is a natural number. The number of the holes in each row of the through air outlet hole groups is a natural number.
The N rows of symmetrical through air inlet hole groups, and each 1 row of through air inlet hole groups (the number of holes is a natural number) can replace the functions and functions of the through air inlet groove by using the through air inlet groove with the outline containing the air inlet hole groups; the N rows of symmetrical through air outlet hole groups can replace the functions and functions of the N rows of symmetrical through air outlet hole groups by using one through air inlet groove with the outline containing the air inlet hole groups every 1 row of through air outlet hole groups (the number of the holes is a natural number).
The upper cover plate graphite sheet of the pump body is provided with a plurality of symmetrical upper air inlets and a plurality of symmetrical upper air outlets, and the lower cover plate graphite sheet of the pump body is provided with a plurality of symmetrical lower air inlets and a plurality of symmetrical lower air outlets;
forming an inlet gas stream through the plurality of symmetrical upper inlet openings of the upper cover graphite sheet and the plurality of symmetrical lower inlet openings of the lower cover graphite sheet; forming an outlet gas flow through the plurality of symmetrical upper gas outlets of the upper cover graphite sheet and the plurality of symmetrical lower gas outlets of the lower cover graphite sheet;
the upper cover plate is provided with an upper positioning clamp for installing and positioning the graphite sheet of the upper cover plate; the lower cover plate is also provided with a lower positioning clamp for installing and positioning the graphite sheet of the lower cover plate; the upper cover plate is assembled with the graphite flakes of the upper cover plate to form an upper cover, the lower cover plate is assembled with the graphite flakes of the lower cover plate to form a lower cover, and the upper cover and the lower cover are used for sealing the pump body.
Furthermore, the cavity is petal-shaped, the petals are symmetrically distributed, the petals and the rotor form a pump cavity, the number of the petals in the petal-shaped cavity is equal to the number of the pump cavity, the number of the pump cavity is set to be N, and the value range of N is 3,4,5,6,7 and 8; the shape of the cavity is symmetrical and the same relative to the circle center, and the function curve of the shape of each petal is expressed by a generalized elliptic function equation, an involute equation, a sine spiral equation, an annular sine curve equation or a logarithmic spiral equation.
Furthermore, a K-th shaft hole and 2 symmetrical positioning clips are arranged on the lower cover plate, an outer ring is arranged below the annular bearing arranged on the lower surface of the lower cover plate, the bearing is arranged in the outer ring of the annular bearing arranged, and an annular matching step is also arranged on the lower surface of the lower cover plate; the lower cover plate graphite sheet is also provided with 2 symmetrical clamping grooves and an L-shaped shaft hole, and the lower cover plate positioning clamp is matched with the lower cover plate graphite sheet clamping grooves, so that the lower cover plate graphite sheet can be assembled in the lower cover plate;
the symmetrical lower air outlets of the graphite sheet of the lower cover plate are communicated with the pump cavity, 2 edges of the symmetrical lower air outlets of the graphite sheet of the lower cover plate are provided with noise elimination and reduction air entraining points, and the designed air entraining points can relieve the impact of air flow and effectively reduce the noise of the air extracting pump; the symmetrical air inlets of the lower cover plate graphite sheet are communicated with the pump cavity, the edges of the symmetrical air inlets of the lower cover plate graphite sheet are also provided with noise elimination and reduction air entraining points, and the designed air entraining points can relieve the impact of air flow and effectively reduce the noise of the air extracting pump. The plurality of symmetrical lower air outlets of the lower cover plate graphite sheet and the plurality of symmetrical lower air inlets of the lower cover plate graphite sheet are different in the radial maximum size, wherein the radial maximum size of the lower cover plate graphite sheet is larger than that of the lower cover plate graphite sheet;
a plurality of symmetrical lower air outlets of the graphite sheet of the lower cover plate are directly communicated with the non-through circular air outlet groove; and the symmetrical lower air inlets of the graphite sheet of the lower cover plate are indirectly communicated with the non-through annular through air inlet grooves on the upper surface of the stator through the through air inlet hole group.
Furthermore, an R-th shaft hole and 2 symmetrical upper positioning clips are arranged on the upper cover plate, an outer ring is arranged on the annular bearing arranged on the upper surface of the upper cover plate, and a bearing is arranged in the outer ring arranged on the annular bearing; the upper cover plate graphite sheet is provided with a plurality of symmetrical upper air inlets, a plurality of symmetrical upper air outlets, 2 symmetrical upper cover plate clamping grooves and an S-shaped shaft hole, and the upper positioning clamp is matched with the upper cover plate graphite sheet clamping grooves, so that the upper cover plate graphite sheet can be assembled in the upper cover plate to form the upper cover;
the symmetrical upper air outlets of the upper cover plate graphite sheet are communicated with the pump cavity, 2 edges of the symmetrical upper air outlets of the upper cover plate graphite sheet are provided with noise elimination and reduction air entraining points, and the designed air entraining points can relieve the impact of air flow and effectively reduce the noise of the air extracting pump; a plurality of symmetrical upper air inlets of the upper cover plate graphite sheet are communicated with the pump cavity, the edges of the symmetrical upper air inlets of the upper cover plate graphite sheet are also provided with noise elimination and reduction air entraining points, and the designed air entraining points can relieve the impact of air flow and effectively reduce the noise of the air extracting pump. The plurality of symmetrical upper air inlets of the upper cover plate graphite sheet and the plurality of symmetrical upper air outlets of the upper cover plate graphite sheet are different in the radial maximum size, wherein the radial maximum size of the upper cover plate graphite sheet is larger than that of the upper cover plate graphite sheet;
a plurality of symmetrical upper air inlets of the graphite sheet of the upper cover plate are directly communicated with the non-through circular air inlet groove; and the plurality of symmetrical upper air outlets of the graphite sheet of the upper cover plate are indirectly communicated with the non-through annular air outlet groove positioned on the lower surface of the stator through the through air outlet hole group.
Furthermore, the through air inlet hole group is communicated with the upper air inlet and is simultaneously communicated with the lower air inlet of the graphite sheet of the lower cover plate; the through air outlet hole group is communicated with an upper air outlet of the upper cover plate graphite flake and is simultaneously communicated with a lower air outlet of the lower cover plate graphite flake;
when the air suction pump is used for air suction, external air enters the non-through annular air inlet groove in the upper surface of the stator through the air inlet hole nozzle of the stator, the non-through annular air inlet groove is communicated with the upper air inlet, and the air enters the pump cavity through the noise elimination and reduction air guide tip to form air inlet flow; meanwhile, the air flows into the plurality of symmetrical lower air inlets through the through air inlet hole group, and then enters the pump cavity through the noise elimination and reduction air entraining tips to form additional air inlet flow; a plurality of paths of inlet air flows are formed in total;
when the air pump exhausts, the air in the pump cavity flows out through a plurality of symmetrical lower air outlets of the graphite sheet of the lower cover plate and then flows out from the air outlet nozzle through the non-through annular air outlet groove to form air outlet flow; meanwhile, the gas in the pump cavity flows into the through gas outlet hole group through a plurality of symmetrical upper gas outlets of the upper cover plate graphite flake, and then flows out from the gas outlet hole nozzle through the non-through annular gas outlet groove to form extra gas outlet flow, so that a plurality of paths of gas outlet flows are formed.
Furthermore, a non-through annular air inlet groove is formed in the upper end face of the stator, an air inlet hole nozzle is further formed in the position close to the upper end face of the stator, the non-through annular air inlet groove is communicated with the air inlet hole nozzle, the air inlet hole nozzle is used for tapping internal threads, and the non-through annular air inlet groove is conveniently connected with an air inlet connector with external threads so as to introduce air; the lower end face of the stator is provided with a non-through circular air outlet groove, an air outlet hole nozzle is further formed in the position close to the lower end face, the non-through circular air outlet groove is communicated with the air outlet hole nozzle, the air outlet hole nozzle is used for tapping internal threads, and the non-through circular air outlet groove is conveniently connected with an air outlet joint with external threads to lead out gas.
The outer edge of the lower end face of the stator is provided with a first sealing step, and the outer edge of the upper end face of the stator is provided with a second sealing step; the upper end surface of the lower cover plate is provided with a first snap-back cover, and the first snap-back cover is matched with the first sealing step to seal the lower part of the pump body; a second back-buckling cover is arranged on the lower end face of the upper cover plate and matched with the second sealing step to seal the upper part of the pump body;
the rotary vane electronic air pump is also provided with screw through holes, and the number of the screw through holes is equal to that of the pump cavities; and the two ends of the screw through hole are respectively tapped with internal threads.
Furthermore, a first bearing mounting hole is formed in the lower end face of the lower cover plate and communicated with the Kth shaft hole; the upper end face of the upper cover plate is provided with a second bearing mounting hole, the second bearing mounting hole is communicated with the R-th shaft hole, and bearings are arranged in the first bearing mounting hole and the second bearing mounting hole.
Furthermore, the lower cover plate is provided with N screw through holes, and the graphite sheet of the lower cover plate is provided with N screw through holes; the upper cover plate is provided with N screw through holes, and the graphite sheet of the upper cover plate is provided with N screw through holes; the position of the screw through hole corresponds to the position of the screw through hole on the stator; the upper cover plate, the graphite sheet of the upper cover plate and the upper end surface of the stator can be connected through screws; the lower cover plate, the graphite sheet of the lower cover plate and the lower end surface of the stator can be connected through screws.
The rotor shaft is provided with a plurality of rotor plate grooves, a corresponding number of rotor plates are assembled in the plurality of rotor plate grooves, the number of the rotor plate grooves and the number of the rotor plates are M, and the value range of M is 6,7,8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 or 26; the number N of the pump cavities is matched with the number M of the rotary vanes to form a pump body structure of the rotary vanes with N cavities and M cavities; wherein M is more than or equal to N; the rotor shaft is connected with a rotating shaft of the motor through a coupler, the rotor shaft is of a step shaft structure, the largest diameter part of the rotor shaft is a rotor part, the diameter of the rotor is equal to the short diameter of the inner cavity of the petal-shaped stator, and the diameters of two ends of the rotor shaft are equal to the diameter of the central hole of the bearing; the upper part of the rotor shaft is respectively and sequentially provided with an upper cover plate graphite sheet, an upper cover plate and a bearing; a stator is sleeved outside a rotor part of the rotor shaft; and the lower part of the rotor shaft is respectively and sequentially provided with a lower cover plate graphite sheet, a lower cover plate and a bearing.
Furthermore, a first circular ring matching step is arranged on one side, close to the connecting seat, of the lower cover plate; the connecting seat is of a cuboid structure with a hollow-out part penetrating through the connecting seat, a second annular matching inner hole is formed in one side, close to the lower cover plate, of the connecting seat, the outer diameter of the first annular matching step is equal to the inner diameter of the second annular matching inner hole, and the lower cover plate and the connecting seat are connected with the second annular matching inner hole in a matching mode through the first annular matching step; the other side of connecting seat is equipped with the ring hole with motor flange complex, makes the motor link to each other with the connecting seat through this hole, through the connecting seat makes the pump body and motor be connected to guarantee the concentricity of motor shaft and pump body rotor shaft.
The number of the pump cavities N is matched with the number of the rotary vanes M, and various structures of the rotary vanes M with the N cavities can be formed. Considering the actual condition of the product, the patent limits the M value to be more than or equal to the N value. The product may form 2N inlet streams and 2N outlet streams. Optionally, the number of pump chambers N is 3,4,5,6,7, 8.
Optionally, the number of the rotor slots and the number of the rotors are 6,7,8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, or 26.
The application provides a rotor plate electron air pump during operation, the outside gas is got into by the inlet port mouth, and the ring shape non-link up air inlet duct through with the inlet port intercommunication gets into in the N symmetry air inlet of upper cover plate graphite flake, then the noise elimination noise reduction bleed point of the N symmetry air inlet of through the upper cover plate graphite flake, gets into the pump chamber with N way inlet air current.
Meanwhile, N rows of symmetrical air inlet through hole groups on the stator are communicated with N symmetrical air inlets of the graphite sheet of the upper cover plate and N symmetrical air inlets of the graphite sheet of the lower cover plate. Gas in the N symmetrical air inlets of the upper cover plate graphite sheet also passes through the N rows of symmetrical air inlet through hole groups on the stator simultaneously, flows to the N symmetrical air inlets of the lower cover plate graphite sheet, then passes through the noise elimination and reduction air entraining points of the N symmetrical air inlets of the lower cover plate graphite sheet, and enters the other N paths of air inlet airflow into the pump cavity simultaneously. A total of 2N intake streams are formed.
The rotor drives the rotor plate to rotate, so that the volume of the sub-pump cavities on two sides of the rotor plate is periodically changed, after the sucked gas is compressed, the gas flows out from N symmetrical gas outlets of the graphite sheets of the lower cover plate, enters the circular non-through gas outlet groove of the stator and is discharged from the gas outlet nozzle, and N paths of gas outlet airflow are formed, so that the aim of continuous gas extraction is fulfilled.
Meanwhile, the N symmetrical air outlet through hole groups on the stator are communicated with N symmetrical air outlets of the graphite sheet of the upper cover plate and N symmetrical air outlets of the graphite sheet of the lower cover plate. Gas in the N symmetrical gas outlets of the upper cover plate graphite flake also passes through the N symmetrical gas outlet through hole groups on the stator, flows to the N symmetrical gas outlets of the lower cover plate graphite flake, and other N paths of gas outlet flows are simultaneously introduced into the circular non-through gas outlet grooves of the stator and are discharged from the gas outlet nozzle. A total of 2N outgoing gas streams were formed.
In this application a N pump chamber the inside, each pump chamber correspondence is provided with 2 air inlets and 2 gas outlets, 2 air inlets and 2 gas outlets of each pump chamber are located upper cover plate graphite flake and lower cover plate graphite flake respectively.
Has the advantages that: in this application, with inlet opening mouth and outlet opening mouth setting on the stator, the gas circuit of gas circulation only relates to stator, rotor, spinning piece, upper cover and lower cover, and gas only circulates in the pump body promptly, and the part that the gas circuit relates to reduces, and the sealing performance of spinning piece electron aspiration pump is better. Meanwhile, the whole structure of the pump is simpler, the designed noise elimination and reduction air entraining points can reduce the noise of air flow, and the annular air inlet groove and the annular air outlet groove which are designed along the circumferential direction of the stator can reduce the weight of the air extracting pump.
In the application, the inner cavity of the stator is in a petal shape, N pump cavities (N is 3,4,5,6,7 and 8) are arranged according to the number N of petals, the number M of the rotary sheets can be flexibly selected in the range of M is 6,7,8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 and 26 according to the use requirement, the selection range is wide, wherein M is not less than N, and the structure of the N cavities M rotary sheets is integrally formed; for the aspiration pump that the stator is oval inner chamber, its pump chamber figure is 2, the air input of N chamber pump in this application, air output and volume utilization all obtain further optimization, the product of this type of structure all has very big superiority in the aspect of improving product air extraction efficiency, lightening product weight.
Drawings
Fig. 1 is an exploded view of the overall structure of a rotary vane electric air pump according to an embodiment of the present application;
FIG. 2 is a top view of a 4-chamber 8-rotor pump structure (with the rotor rotating clockwise) according to an embodiment of the present disclosure;
FIG. 3 is a bottom view (counterclockwise rotation of the rotor) of a 4-chamber 8-rotor pump structure according to an embodiment of the present disclosure;
FIG. 4 is a top view of a 4-chamber 9-rotor pump structure (with the rotor rotating clockwise) according to an embodiment of the present disclosure;
FIG. 5 is a bottom view (counterclockwise rotation of the rotor) of a 4-cavity 9-rotor pump body structure according to an embodiment of the present application;
FIG. 6 is a top view of a 4-chamber 10 vane pump configuration (with the rotor rotating clockwise) according to an embodiment of the present application;
FIG. 7 is a bottom view of a 4-chamber 10-rotor pump body structure (with the rotor rotating counterclockwise) according to an embodiment of the present application;
FIG. 8 is a top view of a 3-cavity 6-vane rotary pump body structure (with the rotor rotating clockwise) according to an embodiment of the present application;
FIG. 9 is a bottom view (counterclockwise rotation of the rotor) of a 3-cavity 6-rotor pump body structure according to an embodiment of the present application;
FIG. 10 is a top view of a 3-chamber 9-rotor pump structure (with the rotor rotating clockwise) according to an embodiment of the present disclosure;
FIG. 11 is a bottom view (counterclockwise rotation of the rotor) of a 3-cavity 9-rotor pump body structure according to an embodiment of the present application;
FIG. 12 is a top view of a 6-chamber 15 vane pump configuration (with the rotor rotating clockwise) according to an embodiment of the present application;
FIG. 13 is a bottom view of a 6-chamber 15 vane pump body configuration (with the rotor rotating counterclockwise) according to an embodiment of the present application;
FIG. 14 is a schematic diagram of an upper end surface structure of a stator in a 4-cavity 10-vane pump body structure according to an embodiment of the present application;
FIG. 15 is a schematic view of a lower end face structure of a stator in a 4-cavity 10-vane pump structure according to an embodiment of the present application;
FIG. 16 is a schematic cross-sectional view of a stator in a 4-cavity 10-rotor pump structure according to an embodiment of the present application;
FIG. 17 is a schematic structural diagram of an upper end surface of a lower cover plate in a 4-cavity 10-vane pump body structure according to an embodiment of the present application;
FIG. 18 is a schematic structural view of a lower end surface of a lower cover plate in a 4-cavity 10 vane pump structure according to an embodiment of the present application;
FIG. 19 is a schematic view of a side view of a lower cover plate of a 4-cavity 10 vane pump structure according to an embodiment of the present application;
FIG. 20 is a schematic view of a lower cover plate graphite sheet in a 4-chamber 10-rotor pump structure according to an embodiment of the present application;
FIG. 21 is a schematic diagram of the upper surface of the upper cover plate in a 4-chamber 10 vane pump configuration according to an exemplary embodiment of the present application;
FIG. 22 is a schematic view of the lower surface of the upper cover plate in a 4-chamber 10 vane pump configuration according to an embodiment of the present application;
FIG. 23 is a schematic side view of an upper cover plate in a 4-chamber 10 vane pump configuration according to an exemplary embodiment of the present disclosure;
FIG. 24 is a schematic view of the structure of the upper cover plate graphite sheet in a 4-chamber 10 vane-pump body structure according to an embodiment of the present application;
FIG. 25 is a top view of a rotor shaft in a 4-cavity 10-lobe pump body configuration according to an embodiment of the present application;
FIG. 26 is an oblique view of the rotor shaft in the 4-cavity 10-lobe pump body configuration shown in an embodiment of the present application;
FIG. 27 is a schematic structural diagram of a connection socket in a 4-chamber 10 vane pump body structure according to an embodiment of the present application;
FIG. 28 is a schematic top view of an integrated top cover for a 4-cavity 10 vane-type pump body configuration according to an embodiment of the present application;
FIG. 29 is a schematic view of the bottom surface of the integrated top cover of the 4-cavity 10 vane-screw pump body structure according to the embodiment of the present application;
FIG. 30 is a schematic top view of an integrated lower cap in a 4-cavity 10 vane-type pump body configuration according to an embodiment of the present application;
FIG. 31 is a schematic view of the bottom surface of the integrated lower cap in the 4-cavity 10 vane-screw pump body structure according to the embodiment of the present application;
illustration of the drawings: 1. the pump body, 11, a stator, 111, a cavity, 112, an air inlet hole nozzle, 113, an air outlet hole nozzle, 114, a through air inlet hole group, 115, a through air outlet hole group, 116, a non-through annular air inlet groove, 117, a non-through annular air outlet groove, 12, a rotor shaft, 121, a rotor, 122, a rotor groove, 123, a rotor plate, 13, a rotor plate, 14, an upper cover plate, 141, an R shaft hole, 142, an upper positioning clamp, 143, an outer ring installed on an annular bearing, 144, a second bearing installation hole, 145, a second snap-back cover, 15, an upper cover plate graphite sheet, 151, an upper air inlet, 152, an upper air outlet, 153, an upper cover plate clamping groove, 154, an S shaft hole, 16, a lower cover plate graphite sheet, 161, a lower air inlet, 162, a lower air outlet, 163, a lower cover plate clamping groove, 164, an L shaft hole, 165, a bleed air tip, 17, a lower cover plate, 171, a K shaft hole, 172, a lower positioning clamp, 173, 174. The first snap-back cover 175, the first bearing mounting hole 18, the pump cavity 2, the connecting seat 3, the motor 4, the screw through hole 5 and the coupler.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
A rotary-vane electronic air pump is shown in figure 1, and comprises a pump body 1, a connecting seat 2 and a motor 3, wherein the pump body 1 is connected with the motor 3 through the connecting seat 2, the structure of the connecting seat 2 is shown in figure 27, the pump body 1 comprises a stator 11, a rotor shaft 12, a rotary vane 13, an upper cover plate 14, an upper cover plate graphite sheet 15, a lower cover plate graphite sheet 16 and a lower cover plate 17, the rotor shaft 12 is a step shaft, the maximum outer diameter part of the step shaft is a rotor part, a plurality of penetrating rotary vane grooves 122 uniformly distributed along the circumference are arranged on a rotor 121, rotary vanes 123 are respectively arranged in the rotary vane grooves 122, symmetrical petal-shaped cavities 111 are arranged on the stator 11, the rotor 121 is concentrically arranged in the petal-shaped cavities 111, the diameter of the rotor 121 is equal to the short diameter of the petal-shaped cavities 111, the number of the petal-shaped cavities is N, the gap between the stator 11 and the rotor 121 forms N pump chambers 18, one end of the rotor 123 is located in the rotor groove 122, and the other end of the rotor 123 is abutted against the wall of the petal-shaped cavity 111; the number of the through air inlet hole groups 114 and the number of the through air outlet hole groups 115 are set according to the number of the pump chambers 18;
as shown in fig. 14, 15, and 16, the stator 11 is provided with an air inlet nozzle 112, an air outlet nozzle 113, N rows of symmetrical through air inlet hole sets 114, and N rows of symmetrical through air outlet hole sets 115, the upper end surface of the stator 11 is provided with a non-through annular air inlet groove 116, and the non-through annular air inlet groove 116 is communicated with the air inlet nozzle 112; a non-through annular gas outlet groove 117 is formed in the lower end face of the stator 11, and the non-through annular gas outlet groove 117 is communicated with the gas outlet nozzle 113; the non-through annular air inlet groove 116 and the non-through annular air outlet groove 117 are formed in the upper end face and the lower end face of the stator 11 along the circumference of the end faces respectively, so that the weight of the pump body can be effectively reduced; the stator 11 is provided with N rows of symmetrical through air inlet hole groups 114 and N rows of symmetrical through air outlet hole groups 115, so that the weight of the pump body can be effectively reduced;
the N rows of symmetrical through air inlet hole groups 114 are positioned between the inner wall of the stator petal-shaped inner hole and the inner wall of the non-through circular air inlet groove 116 and are not communicated with the stator petal-shaped inner hole and the circular non-through air inlet groove; the N rows of symmetrical through air outlet hole groups 115 are positioned between the stator petal-shaped inner hole wall and the circular non-through air outlet groove wall and are not communicated with the stator petal-shaped inner hole and the circular non-through air outlet groove, and the number of holes in each row of through air inlet hole groups is a natural number. The number of the holes in each row of the through air outlet hole groups is a natural number.
The N rows of symmetrical through intake hole groups 114, and every 1 row of through intake hole groups (the number of holes is a natural number), the function and function of which can be replaced by one through intake groove with the outline containing the intake hole groups; the N rows of symmetrical through air outlet hole groups 115 may be replaced with one through air inlet groove having a "contour including these air inlet hole groups" for every 1 row of through air outlet hole groups (the number of holes is a natural number). As shown in fig. 24, the upper cover graphite sheet 15 of the pump body 1 is provided with a plurality of symmetrical upper gas inlets 151 and a plurality of symmetrical upper gas outlets 152, and as shown in fig. 20, the lower cover graphite sheet 16 of the pump body 1 is provided with a plurality of symmetrical lower gas inlets 161 and a plurality of symmetrical lower gas outlets 162;
forming an inlet gas stream through the plurality of symmetrical upper inlet openings 151 of the upper graphene plate and the plurality of symmetrical lower inlet openings 161 of the lower graphene plate; forming a flow of exit gas through the plurality of symmetrical upper exit gas openings 152 of the upper graphene sheet and the plurality of symmetrical lower exit gas openings 162 of the lower graphene sheet;
as shown in fig. 20, 21 and 22, the upper cover plate 14 is provided with an upper positioning clip 142 for mounting and positioning the upper cover plate graphite sheet 15; the lower cover plate 17 is also provided with a lower positioning clip 172 for mounting and positioning the graphite sheet 16 of the lower cover plate; the upper cover plate 14 is assembled with upper cover plate graphite sheets 15 to form an upper cover, and the lower cover plate 17 is assembled with lower cover plate graphite sheets 16 to form a lower cover, which are used for sealing the pump body 1.
Specifically, the cavity 111 is petal-shaped, the petals are symmetrically distributed, the petals and the rotor 121 form a pump cavity 18, the number of the petals in the petal-shaped cavity 111 is the number of the pump cavity 18, the number of the pump cavities 18 is set to be N, and the value range of N is 3,4,5,6,7 and 8; the petal-shaped cavities 111 are symmetrically identical in shape relative to the circle center, and the function curve of each petal shape is expressed by a generalized elliptic function equation, an involute equation, a sine spiral equation, an annular sine curve equation or a logarithmic spiral equation.
Specifically, as shown in fig. 17, 18, and 19, the lower cover plate 17 is provided with a kth shaft hole 171 and 2 symmetrical positioning clips 172, the lower surface of the lower cover plate is provided with an outer ring 173 below the circular ring bearing, the bearing is installed in the outer ring 173 below the circular ring bearing, and the lower surface of the lower cover plate is further provided with a circular ring matching step; the lower cover plate graphite sheet 16 is further provided with 2 symmetrical clamping grooves 163 and an L-shaped shaft hole 164, and the lower cover plate positioning clips 172 are matched with the lower cover plate graphite sheet clamping grooves 163, so that the lower cover plate graphite sheet 16 can be assembled in the lower cover plate 17; forming the lower cover;
as shown in fig. 20, the plurality of symmetrical lower air outlets 162 of the lower graphite cover plate are communicated with the pump cavity 18, 2 edges of the plurality of symmetrical lower air outlets 162 of the lower graphite cover plate are provided with noise-damping and noise-reducing bleed points 165, and the designed bleed points can relieve the impact of the air flow and effectively reduce the noise of the air pump; the symmetrical lower air inlets 161 of the lower cover plate graphite sheet 16 are communicated with the pump cavity 18, the edges of the symmetrical lower air inlets 161 on the lower cover plate graphite sheet are also provided with noise elimination and reduction air entraining points 165, and the designed air entraining points can relieve the impact of air flow and effectively reduce the noise of the air extracting pump. The plurality of symmetrical lower air outlets 162 of the lower graphite cover plate are different from the plurality of symmetrical lower air inlets 161 of the lower graphite cover plate in the radial direction in the maximum dimension, wherein the radial maximum dimension of the former is larger than that of the latter;
the plurality of symmetrical lower air outlets 162 of the lower cover graphite sheet 16 are directly communicated with the non-through circular air outlet groove 117; the symmetrical lower inlet ports 161 of the lower cover graphite sheet are indirectly communicated with the non-through circular ring-shaped through inlet slots 116 on the upper surface of the stator through the through inlet hole set 114.
Specifically, as shown in fig. 28 and 29, an R- th shaft hole 141 and 2 symmetrical upper positioning clips 142 are provided on the upper cover plate 14, an outer ring 143 is installed on a circular ring bearing provided on the upper surface of the upper cover plate, and a bearing is installed in the outer ring 143 on the circular ring bearing; the upper cover graphite sheet 15 is provided with a plurality of symmetrical upper air inlets 151, a plurality of symmetrical upper air outlets 152, 2 symmetrical upper cover clamping grooves 153 and an S-th axle hole 154, and the upper positioning clamp 142 is matched with the upper cover clamping groove 153, so that the upper cover graphite sheet 15 can be assembled in the upper cover plate 14 to form the upper cover;
the symmetrical upper air outlets 152 of the upper cover plate graphite sheet are communicated with the pump cavity 18, 2 edges of the symmetrical upper air outlets 152 of the upper cover plate graphite sheet are provided with noise elimination and reduction air entraining points 165, and the designed air entraining points can relieve the impact of air flow and effectively reduce the noise of the air extracting pump; the symmetrical upper air inlets 151 of the upper cover plate graphite sheet 15 are communicated with the pump cavity 18, the edges of the symmetrical upper air inlets 151 of the upper cover plate graphite sheet are also provided with noise elimination and reduction air entraining points 165, the designed air entraining points can relieve the impact of air flow, and the noise of the air extracting pump is effectively reduced. The plurality of symmetrical upper inlet openings 151 of the upper graphite cover plate are different from the plurality of symmetrical upper outlet openings 152 of the upper graphite cover plate in the radial direction in the maximum dimension, wherein the radial maximum dimension of the former is larger than that of the latter;
the plurality of symmetrical upper inlet openings 151 of the upper cover graphite sheet 15 are directly communicated with the non-through circular inlet slot 116; the plurality of symmetrical upper air outlets 152 of the upper cover graphite sheet are indirectly communicated with the non-through circular inlet slot 116 on the lower surface of the stator through the through air outlet hole group 115.
Specifically, the through air inlet hole set 114 is communicated with the upper air inlet 151 and is also communicated with the lower air inlet 161 of the lower cover graphite sheet 16; the through air outlet group 115 is communicated with the upper air outlet 152 of the upper cover plate graphite sheet 15 and is also communicated with the lower air outlet 162 of the lower cover plate graphite sheet 16;
when the air suction pump is used for air suction, external air enters the non-through annular air inlet groove 116 on the upper surface of the stator through the air inlet hole nozzle 112 of the stator, the non-through annular air inlet groove 116 is communicated with the upper air inlet 151, and the air enters the pump cavity through the noise elimination and reduction air guide tip 165 to form air inlet flow; meanwhile, the air flows into the plurality of symmetrical lower air inlets 161 through the through air inlet hole group 114, and then enters the pump cavity 18 through the noise elimination and reduction bleed air tips 165 to form additional intake airflow; a plurality of paths of inlet air flows are formed in total;
when the air pump exhausts, the air in the pump cavity flows out through the plurality of symmetrical lower air outlets 162 of the lower cover plate graphite sheet 16, passes through the non-through annular air outlet groove 117, and flows out from the air outlet nozzle 113 to form an air outlet flow; meanwhile, the gas in the pump chamber 18 also passes through the plurality of symmetrical upper gas outlets 152 of the upper cover graphite sheet 15, passes through the through gas outlet set 115, flows from the lower gas outlet 162 into the non-through circular gas outlet groove 117, and flows out from the gas outlet nozzle 113 to form additional gas outlet flows, so that a plurality of gas outlet flows are formed.
Specifically, the upper end surface of the stator is provided with a non-through annular air inlet groove 116, the position close to the upper end surface is also provided with an air inlet hole nozzle 112, the non-through annular air inlet groove 116 is communicated with the air inlet hole nozzle 112, and the air inlet hole nozzle is tapped with internal threads and is conveniently connected with an air inlet joint with external threads so as to introduce air; the lower end face of the stator is provided with a non-through annular gas outlet groove 117, a gas outlet hole mouth 113 is further arranged at a position close to the lower end face, the non-through annular gas outlet groove 117 is communicated with the gas outlet hole mouth 113, and the gas outlet hole mouth is used for tapping internal threads and is conveniently connected with a gas outlet joint with external threads so as to lead out gas.
A first sealing step is arranged on the outer edge of the lower end face of the stator 11, and a second sealing step is arranged on the outer edge of the upper end face of the stator 11; a first snap-back cover 174 is arranged on the upper end surface of the lower cover plate 17, and the first snap-back cover 174 is matched with the first sealing step to seal the lower part of the pump body 1; a second snap-back cover 145 is arranged on the lower end face of the upper cover plate 14, and the second snap-back cover 145 is matched with the second sealing step to seal the upper part of the pump body 1;
the rotary vane electronic air pump is also provided with screw through holes 4, and the number of the screw through holes is equal to that of the pump cavities; and the two ends of the screw through hole 4 are respectively tapped with internal threads.
Specifically, a first bearing mounting hole 175 is formed in the lower end surface of the lower cover plate 17, and the first bearing mounting hole 175 is communicated with the K-th shaft hole 171; a second bearing mounting hole 144 is formed in the upper end surface of the upper cover plate 14, the second bearing mounting hole 144 is communicated with the R-th shaft hole 141, and bearings are disposed inside the first bearing mounting hole 175 and the second bearing mounting hole 144.
Specifically, as shown in fig. 30 and 31, the lower cover plate is provided with N screw through holes, and the graphite sheet of the lower cover plate is provided with N screw through holes; the upper cover plate is provided with N screw through holes, and the graphite sheet of the upper cover plate is provided with N screw through holes; the position of the screw through hole corresponds to the position of the screw through hole 4 on the stator; the upper cover plate 14, the upper cover plate graphite sheet 15 and the upper end surface of the stator can be connected through screws; the lower cover plate 17 and the lower cover plate graphite sheet 16 can be connected with the lower end surface of the stator through screws.
Specifically, as shown in fig. 25 and 26, the rotor shaft 12 further includes a rotor shaft 12, a rotor portion of the rotor shaft 12 is provided with a plurality of rotor plate grooves 122, a corresponding number of rotor plates 123 are assembled in the plurality of rotor plate grooves 122, the number of the rotor plate grooves 122 and the number of the rotor plates 123 are M, where M is 6,7,8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, or 26; the number N of the pump cavities 18 is matched with the number M of the rotary vanes 123 to form a pump body structure with N cavities and M rotary vanes; wherein M is more than or equal to N; fig. 2 and 3 are structural diagrams of the pump body structure adopting a 4-cavity 8-vane rotary vane in the present application; fig. 4 and 5 are structural diagrams of the pump body structure adopting a 4-cavity 9-rotor vane according to the present application; fig. 6 and 7 are structural diagrams of the pump body structure adopting a 4-cavity 10-rotor blade according to the present application; fig. 8 and 9 are structural diagrams of the present application in a pump body structure with 3 cavities and 6 rotary vanes; fig. 10 and 11 are structural views illustrating a pump body structure with 3 cavities and 9 rotary vanes adopted in the present application; fig. 12 and 13 are structural views illustrating a pump body structure with a 6-chamber 15-rotor according to the present application;
taking a pump body structure with 4 cavities and 10 rotary vanes as an example, the rotor shaft 12 is connected with a rotating shaft of the motor 3 through a coupler 5, the rotor shaft 12 is of a stepped shaft structure, the largest diameter part of the rotor shaft 12 is a rotor part, the diameter of the rotor is equal to the short diameter of an inner cavity of a petal-shaped stator, and the diameters of two ends of the rotor shaft 12 are equal to the diameter of a central hole of a bearing; the upper part of the rotor shaft is respectively and sequentially provided with an upper cover plate graphite sheet 15, an upper cover plate 14 and a bearing; the stator 11 is sleeved outside the rotor part of the rotor shaft; and the lower part of the rotor shaft is respectively and sequentially provided with a lower cover plate graphite sheet 16, a lower cover plate 17 and a bearing.
Specifically, a first circular ring matching step is arranged on one side of the lower cover plate 17 close to the connecting seat 2; the connecting seat 2 is of a cuboid structure with a hollow-out part penetrating through the inside, a second annular matching inner hole is formed in one side, close to the lower cover plate 17, of the connecting seat 2, the outer diameter of the first annular matching step is equal to the inner diameter of the second annular matching inner hole, and the lower cover plate 17 and the connecting seat 2 are connected with the second annular matching inner hole in a matching mode through the first annular matching step; the other side of connecting seat 2 is equipped with the ring hole with motor flange complex, makes the motor link to each other with the connecting seat through this hole, through connecting seat 2 makes pump body 1 and motor 3 be connected to guarantee the concentricity of motor shaft and pump body rotor shaft.
According to the technical scheme, when the rotary vane electronic air pump works, external air enters from the air inlet nozzle, enters the N symmetrical air inlets of the upper cover plate graphite sheet through the annular non-through air inlet grooves communicated with the air inlet holes, and then enters the N paths of air inlet airflow into the pump cavity through the noise elimination and reduction air guide tips of the N symmetrical air inlets of the upper cover plate graphite sheet.
Meanwhile, N rows of symmetrical air inlet through hole groups on the stator are communicated with N symmetrical air inlets of the graphite sheet of the upper cover plate and N symmetrical air inlets of the graphite sheet of the lower cover plate. Gas in the N symmetrical air inlets of the upper cover plate graphite sheet also passes through the N rows of symmetrical air inlet through hole groups on the stator simultaneously, flows to the N symmetrical air inlets of the lower cover plate graphite sheet, then passes through the noise elimination and reduction air entraining points of the N symmetrical air inlets of the lower cover plate graphite sheet, and enters the other N paths of air inlet airflow into the pump cavity simultaneously. A total of 2N intake streams are formed.
The rotor drives the rotor plate to rotate, so that the volume of the sub-pump cavities on two sides of the rotor plate is periodically changed, after the sucked gas is compressed, the gas flows out from N symmetrical gas outlets of the graphite sheets of the lower cover plate, enters the circular non-through gas outlet groove of the stator and is discharged from the gas outlet nozzle, and N paths of gas outlet airflow are formed, so that the aim of continuous gas extraction is fulfilled.
Meanwhile, the N symmetrical air outlet through hole groups on the stator are communicated with N symmetrical air outlets of the graphite sheet of the upper cover plate and N symmetrical air outlets of the graphite sheet of the lower cover plate. The gas in the N symmetrical gas outlets of the upper cover plate graphite flake also passes through the N symmetrical gas outlet through hole groups on the stator, flows to the N symmetrical gas outlets of the lower cover plate graphite flake, and introduces the other N paths of gas outlet flows into the annular non-through gas outlet groove of the stator. A total of 2N outgoing gas streams were formed.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.

Claims (9)

1. The utility model provides a rotor blade electron aspiration pump, which is characterized in that, includes the pump body (1), connecting seat (2) and motor (3), the pump body (1) with motor (3) pass through connecting seat (2) are connected, pump body (1) includes stator (11), rotor shaft (12), rotor blade (13), upper cover plate (14), upper cover plate graphite flake (15) and apron graphite flake (16) down, apron (17) down, rotor shaft (12) are the step axle, and the biggest external diameter part of step axle is rotor part, is equipped with a plurality of link up rotor blade grooves (122) along circumference evenly distributed on rotor (121), be equipped with rotor blade (123) respectively in rotor blade groove (122), be equipped with "petal" shape cavity (111) of mutual symmetry on stator (11), rotor (11) set up with one heart in "petal" shape cavity (111), the diameter of the rotor (11) is equal to the minor diameter of the petal-shaped cavities (111), the number of the petal-shaped cavities is N, N pump cavities (18) are formed by gaps between the stator (11) and the rotor (121), and each pump cavity (18) is correspondingly provided with 2 air inlets and 2 air outlets; one end of the rotary vane (123) is positioned in the rotary vane groove (122), and the other end of the rotary vane (123) is abutted against the cavity wall of the petal-shaped cavity (111); the number of the through air inlet hole groups (114) and the number of the through air outlet hole groups (115) are set according to the number of the pump cavities (18);
the stator (11) is provided with an air inlet nozzle (112), an air outlet nozzle (113), N rows of symmetrical through air inlet hole groups (114) and N rows of symmetrical through air outlet hole groups (115), the upper end surface of the stator (11) is provided with a non-through annular air inlet groove (116), and the non-through annular air inlet groove (116) is communicated with the air inlet nozzle (112); a non-through annular gas outlet groove (117) is formed in the lower end face of the stator (11), and the non-through annular gas outlet groove (117) is communicated with the gas outlet nozzle (113); the pump body has the advantages that the non-through annular air inlet groove (116) and the non-through annular air outlet groove (117) are formed in the upper end face and the lower end face of the stator (11) along the circumference of the end faces respectively, so that the weight of the pump body can be effectively reduced; the stator (11) is provided with N rows of symmetrical through air inlet hole groups (114) and N rows of symmetrical through air outlet hole groups (115), so that the weight of the pump body can be effectively reduced;
the N rows of symmetrical through air inlet hole groups (114) are positioned between the inner hole wall of the stator petal-shaped cavity (111) and the inner wall of the non-through circular air inlet groove (116), and are not communicated with the inner hole of the stator petal-shaped cavity (111) and the circular non-through air inlet groove; n rows of symmetrical through air outlet hole groups (115) are positioned between the inner hole wall of the petal-shaped cavity (111) of the stator and the inner wall of the circular non-through air outlet groove (117), are not communicated with the inner hole of the petal-shaped cavity (111) of the stator and the circular non-through air outlet groove, and the number of holes in each row of through air inlet hole groups is a natural number; in each row of through air outlet hole groups, the number of holes is a natural number;
a plurality of symmetrical upper air inlets (151) and a plurality of symmetrical upper air outlets (152) are arranged on the upper cover plate graphite sheet (15) of the pump body (1); the plurality of symmetrical upper inlet ports (151) and the plurality of symmetrical upper outlet ports (152) of the upper cover graphite sheet (15) are different in maximum radial dimension, wherein the maximum radial dimension of the former is larger than that of the latter;
a plurality of symmetrical lower air inlets (161) and a plurality of symmetrical lower air outlets (162) are arranged on the lower cover plate graphite sheet (16) of the pump body (1); the plurality of symmetrical lower air outlets (162) and the plurality of symmetrical lower air inlets (161) of the lower cover graphite sheet (16) have different maximum radial dimensions, wherein the maximum radial dimension of the former is larger than that of the latter;
forming an inlet gas stream through the plurality of symmetrical upper inlet ports (151) of the upper graphene sheet and the plurality of symmetrical lower inlet ports (161) of the lower graphene sheet; forming a flow of exit gas through the plurality of symmetrical upper exit gas openings (152) of the upper graphene sheet and the plurality of symmetrical lower exit gas openings (162) of the lower graphene sheet;
the upper cover plate (14) is provided with an upper positioning clamp (142) for installing and positioning the upper cover plate graphite sheet (15); the lower cover plate (17) is also provided with a lower positioning clamp (172) for installing and positioning the graphite sheet (16) of the lower cover plate; the upper cover plate (14) is assembled with an upper cover plate graphite sheet (15) to form an upper cover, the lower cover plate (17) is assembled with a lower cover plate graphite sheet (16) to form a lower cover, and the upper cover and the lower cover are used for sealing the pump body (1).
2. The rotary vane electronic air pump according to claim 1, wherein the cavity (111) is petal-shaped, the petals are symmetrically distributed, the petals and the rotor (121) form a pump cavity (18), the number of the petals in the cavity (111) is the number of the pump cavity (18), the number of the pump cavity (18) is set to be N, and the value range of N is 3,4,5,6,7, 8; the shape of the cavity (111) is symmetrical and the same relative to the circle center, and the function curve of the shape of each petal is expressed by a generalized elliptic function equation, an involute equation, a sine spiral equation, an annular sine curve equation or a logarithmic spiral equation.
3. The rotary vane electronic air pump according to claim 1, wherein the lower cover plate (17) is provided with a Kth shaft hole (171) and 2 symmetrical positioning clips (172), the lower surface of the lower cover plate is provided with a circular ring bearing lower mounting outer ring (173), a bearing is mounted in the circular ring bearing mounting outer ring (173), and the lower surface of the lower cover plate is further provided with a circular ring matching step; the lower cover plate graphite sheet (16) is also provided with 2 symmetrical clamping grooves (163) and an L-shaped shaft hole (164), and the lower cover plate positioning clamp (172) is matched with the lower cover plate graphite sheet clamping grooves (163), so that the lower cover plate graphite sheet (16) can be assembled in the lower cover plate (17); forming the lower cover;
the symmetrical lower air outlets (162) of the lower cover plate graphite sheet (16) are communicated with the pump cavity (18), 2 edges of the symmetrical lower air outlets (162) of the lower cover plate graphite sheet (16) are provided with noise elimination and reduction air entraining points (165), and the designed air entraining points can relieve the impact of air flow and effectively reduce the noise of the air extracting pump; the symmetrical air inlets (161) of the lower cover plate graphite sheet (16) are communicated with the pump cavity (18), the edges of the symmetrical air inlets (161) of the lower cover plate graphite sheet are also provided with noise elimination and reduction air entraining points (165), and the designed air entraining points relieve the impact of air flow and reduce the noise of the air extracting pump;
a plurality of symmetrical lower air outlets (162) of the lower cover plate graphite sheet (16) are directly communicated with the non-through circular air outlet groove (117); and a plurality of symmetrical lower air inlets (161) of the lower cover plate graphite sheet are indirectly communicated with a non-through circular through air inlet groove (116) positioned on the upper surface of the stator through the through air inlet hole group (114).
4. The rotary vane electronic air pump according to claim 1, wherein the upper cover plate (14) is provided with an R-th shaft hole (141) and 2 symmetrical upper positioning clips (142), the upper surface of the upper cover plate is provided with an outer ring (143) mounted on a circular ring bearing, and a bearing is mounted in the outer ring (143) mounted on the circular ring bearing; the upper cover plate graphite sheet (15) is provided with a plurality of symmetrical upper air inlets (151), a plurality of symmetrical upper air outlets (152), 2 symmetrical upper cover plate clamping grooves (153) and an S-axis hole (154), and the upper positioning clamp (142) is matched with the upper cover plate graphite sheet clamping grooves (153), so that the upper cover plate graphite sheet (15) can be assembled in the upper cover plate (14) to form the upper cover;
the symmetrical upper air outlets (152) of the upper cover plate graphite sheet are communicated with the pump cavity (18), 2 edges of the symmetrical upper air outlets (152) of the upper cover plate graphite sheet are provided with noise elimination and reduction air entraining points (165), and the designed air entraining points can relieve the impact of air flow and effectively reduce the noise of the air extracting pump; the symmetrical upper air inlets (151) of the upper cover plate graphite sheet (15) are communicated with the pump cavity (18), the edges of the symmetrical upper air inlets (151) of the upper cover plate graphite sheet are also provided with noise elimination and reduction air entraining points (165), and the designed air entraining points can relieve the impact of air flow and effectively reduce the noise of the air extracting pump;
a plurality of symmetrical upper air inlets (151) of the upper cover plate graphite sheet (15) are directly communicated with the non-through circular air inlet groove (116); and a plurality of symmetrical upper air outlets (152) of the upper cover plate graphite sheet are indirectly communicated with a non-through circular air outlet groove (117) positioned on the lower surface of the stator through the through air outlet hole group (115).
5. A rotary-vane electron air pump according to claim 2 or 3, wherein the through air inlet set (114) is in communication with the upper air inlet (151) of the upper graphite cover plate (15) and the lower air inlet (161) of the lower graphite cover plate (16); the through air outlet group (115) is communicated with an upper air outlet (152) of the upper cover plate graphite sheet (15) and a lower air outlet (162) of the lower cover plate graphite sheet (16);
when the air suction pump is used for air suction, external air enters a non-through annular air inlet groove (116) on the upper surface of the stator through an air inlet hole nozzle (112) of the stator, the non-through annular air inlet groove (116) is communicated with N symmetrically-arranged upper air inlets (151), and the air enters a pump cavity (18) through a noise elimination and reduction bleed air tip (165) to form N paths of intake airflow; meanwhile, air flows into N symmetrically arranged lower air inlets (161) through the through air inlet hole group (115), and then enters the pump cavity (18) through the noise elimination and reduction air entraining tips (165) to form additional N paths of inlet air flow; 2N paths of inlet airflow are formed in total;
when the air pump exhausts, air in the pump cavity (18) flows out through N symmetrical lower air outlets (162) of the lower cover plate graphite sheet (16), then flows out from the air outlet nozzle (113) through the non-through annular air outlet groove (117), and forms N paths of outlet airflow; meanwhile, the gas in the pump cavity (18) also passes through N upper gas outlets (152) of the upper cover plate graphite sheet (15), flows into a non-through circular gas outlet groove (117) from the lower gas outlet (162) through a through gas outlet hole group (115), and flows out from a gas outlet hole nozzle (113), so that additional N paths of gas outlet flows are formed, and 2N paths of gas outlet flows are formed in total.
6. The rotary vane electronic air pump according to claims 1 and 4, characterized in that the upper end surface of the stator is provided with a non-through circular ring-shaped air inlet groove (116), an air inlet hole nozzle (112) is further provided at a position close to the upper end surface, the non-through circular ring-shaped air inlet groove (116) is communicated with the air inlet hole nozzle (112), and the air inlet hole nozzle (112) taps internal threads and is conveniently connected with an air inlet joint with external threads so as to introduce air; the lower end face of the stator is provided with a non-through annular gas outlet groove (117), a gas outlet hole nozzle (113) is further arranged at a position close to the lower end face, the non-through annular gas outlet groove (117) is communicated with the gas outlet hole nozzle (113), and the gas outlet hole nozzle (113) taps internal threads to be conveniently connected with a gas outlet connector with external threads so as to lead out gas;
the outer edge of the lower end face of the stator (11) is provided with a first sealing step, and the outer edge of the upper end face of the stator (11) is provided with a second sealing step; a first snap-back cover (174) is arranged on the upper end face of the lower cover plate (17), and the first snap-back cover (174) is matched with the first sealing step to seal the lower part of the pump body (1); a second snap-back cover (145) is arranged on the lower end face of the upper cover plate (14), and the second snap-back cover (145) is matched with the second sealing step to seal the upper part of the pump body (1);
the rotary-vane electronic air pump is also provided with screw through holes (4), and the number of the screw through holes (4) is equal to that of the pump cavities; and the two ends of the screw through hole (4) are respectively tapped with internal threads.
7. The rotary vane electric air pump according to claim 3, wherein a lower end surface of the lower cover plate (17) is provided with a first bearing mounting hole (175), and the first bearing mounting hole (175) is communicated with the K-th shaft hole (171); a second bearing mounting hole (144) is formed in the upper end face of the upper cover plate (14), the second bearing mounting hole (144) is communicated with the R-th shaft hole (141), and bearings are arranged in the first bearing mounting hole (175) and the second bearing mounting hole (144);
the lower cover plate (17) is provided with N screw through holes, and the graphite sheet (16) of the lower cover plate is provided with N screw through holes; the upper cover plate (14) is provided with N screw through holes, and the graphite sheet (15) of the upper cover plate is provided with N screw through holes; the position of the screw through hole corresponds to the position of a screw through hole (4) on the stator; the upper cover plate, the graphite sheet of the upper cover plate and the upper end surface of the stator can be connected through screws; the lower cover plate, the graphite sheet of the lower cover plate and the lower end surface of the stator can be connected through screws.
8. A rotor electric air pump according to claim 1, further comprising a rotor shaft (12), wherein a rotor portion of the rotor shaft (12) is provided with a plurality of rotor grooves (122), a corresponding number of rotor plates (123) are assembled in the plurality of rotor grooves (122), and the number of the rotor grooves (122) and the number of the rotor plates (123) are M, wherein M is in a range of 6,7,8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25 or 26; the number N of the pump cavities (18) is matched with the number M of the rotary vanes (123) to form a pump body structure with N cavities and M rotary vanes; wherein M is more than or equal to N;
the rotor shaft (12) is connected with a rotating shaft of the motor (3) through a coupler (5), the rotor shaft (12) is of a stepped shaft structure, the largest diameter part of the rotor shaft (12) is a rotor part, the diameter of a rotor is equal to the short diameter of an inner cavity of a petal-shaped stator, and the diameters of two ends of the rotor shaft (12) are equal to the diameter of a central hole of a bearing; the upper part of the rotor shaft is respectively and sequentially provided with an upper cover plate graphite sheet (15), an upper cover plate (14) and a bearing; a stator (11) is sleeved outside a rotor part of the rotor shaft; and the lower part of the rotor shaft is respectively and sequentially provided with a lower cover plate graphite sheet (16), a lower cover plate (17) and a bearing.
9. The rotary vane electronic air pump according to claim 1, wherein one side of the lower cover plate (17) close to the connecting base (2) is provided with a first circular ring matching step; the connecting seat (2) is of a cuboid structure with a hollow-out part penetrating through the inside, a second annular matching inner hole is formed in one side, close to the lower cover plate (17), of the connecting seat (2), the outer diameter of the first annular matching step is equal to the inner diameter of the second annular matching inner hole, and the lower cover plate (17) and the connecting seat (2) are connected with the second annular matching inner hole in a matching mode through the first annular matching step; the other side of connecting seat (2) is equipped with the ring hole with motor flange complex, makes the motor link to each other with the connecting seat through this hole, through connecting seat (2) make the pump body (1) be connected with motor (3) to guarantee the concentricity of motor shaft and pump body rotor shaft.
CN202010750936.1A 2020-07-30 2020-07-30 Rotary-vane electronic air pump Pending CN111734633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010750936.1A CN111734633A (en) 2020-07-30 2020-07-30 Rotary-vane electronic air pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010750936.1A CN111734633A (en) 2020-07-30 2020-07-30 Rotary-vane electronic air pump

Publications (1)

Publication Number Publication Date
CN111734633A true CN111734633A (en) 2020-10-02

Family

ID=72656569

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010750936.1A Pending CN111734633A (en) 2020-07-30 2020-07-30 Rotary-vane electronic air pump

Country Status (1)

Country Link
CN (1) CN111734633A (en)

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