WO2022062932A1 - 一种叶轮及旋涡式气泵 - Google Patents

一种叶轮及旋涡式气泵 Download PDF

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Publication number
WO2022062932A1
WO2022062932A1 PCT/CN2021/117869 CN2021117869W WO2022062932A1 WO 2022062932 A1 WO2022062932 A1 WO 2022062932A1 CN 2021117869 W CN2021117869 W CN 2021117869W WO 2022062932 A1 WO2022062932 A1 WO 2022062932A1
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WO
WIPO (PCT)
Prior art keywords
air
arc
impeller
pump
air outlet
Prior art date
Application number
PCT/CN2021/117869
Other languages
English (en)
French (fr)
Inventor
林兴辉
Original Assignee
台州瑞晶机电有限公司
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Filing date
Publication date
Application filed by 台州瑞晶机电有限公司 filed Critical 台州瑞晶机电有限公司
Publication of WO2022062932A1 publication Critical patent/WO2022062932A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F04D17/12—Multi-stage pumps
    • F04D17/122—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F04D17/12—Multi-stage pumps
    • F04D17/14—Multi-stage pumps with means for changing the flow-path through the stages, e.g. series-parallel, e.g. side-loads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/163—Combinations of two or more pumps ; Producing two or more separate gas flows driven by a common gearing arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/422—Discharge tongues
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/662—Balancing of rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes

Definitions

  • the invention relates to the technical field of air pumps, and discloses an impeller and a vortex air pump.
  • the vortex air pump includes a drive motor and a plurality of air pump units, each air pump unit includes a pump body and an impeller located in the pump body, and the drive motor drives the impeller to rotate simultaneously to generate high-pressure gas.
  • CN202273916U discloses an impeller of a vortex air pump, which includes an integrally casted hub, a partition plate and a plurality of blades, wherein the partition plate is arranged on the hub.
  • a plurality of blades are symmetrically distributed along the dividing plate from left to right, and the blades on the left and right sides are staggered, and reinforcing ribs are provided at the connection between the hub, the dividing plate and the blades.
  • the reinforcing ribs can increase the connection strength of the blades.
  • the connection strength of the rib structure is still limited, and the centrifugal force caused by the high speed of the blade cannot be used, so it is still Fragile.
  • the present invention is made to solve the above-mentioned problems, and aims to provide an impeller with higher strength and better adaptability to high-speed operation.
  • the invention provides an impeller, which is installed in an air pump and used for pressurizing gas, comprising: a wheel body, a middle part of which is provided with a mounting part for being sleeved on a drive shaft; two annular bosses, respectively arranged on the wheel body The two sides of the body are formed around the mounting part; two arc-shaped grooves are formed along the edge of the annular boss; a plurality of blades are located in the arc-shaped groove; wherein, the cross-sectional line of the bottom surface of the arc-shaped groove is in the shape of an arc , the depth of the arc-shaped groove gradually increases and then decreases from the direction close to the mounting portion to the direction away from the mounting portion.
  • the edge of the wheel body is provided with an arc-shaped groove bottom surface passing through the wheel body from one side and extending to the other side of the arc-shaped groove bottom surface.
  • Air tank
  • the impeller provided by the present invention may also have the following characteristics: wherein each blade extends from the groove bottom surface of the arc-shaped groove along the axial direction of the annular boss, and the outer side surface formed by the blade extension is flat with the side surface of the annular boss together.
  • impeller in the impeller provided by the present invention, it can also have the following feature: wherein the position where the blade is connected with the arc-shaped groove is an extension starting part, and the extension starting part located on one side of the wheel body extends adjacent to the other side. between the beginnings.
  • the impeller provided by the present invention may also have the following feature: wherein, the plurality of blades are arc-shaped, and each has a raised portion, and the raised portions on the plurality of blades located on the same side are all arranged clockwise.
  • impeller provided by the present invention, there may also be such a feature: wherein, the side surface of the blade away from the mounting portion is flush with the outer peripheral surface of the wheel body.
  • the impeller provided by the present invention may also have the feature that the axes of the two annular bosses coincide with the axes of the wheel body.
  • a vortex type air pump comprising: a plurality of pump bodies connected in sequence, all of which have a accommodating chamber formed inside and an air inlet and an air outlet communicated with the chamber; a plurality of impellers, which correspond to the pump bodies one-to-one to form an air pump unit, a plurality of impellers are respectively arranged in the accommodating chamber; the driving part has a driving shaft, and the driving shaft runs through each pump body; wherein, the installation part of each impeller is sleeved on the driving shaft, and is driven by the driving shaft to form airflow.
  • the vortex air pump provided by the present invention may also have such a feature, further comprising: a plurality of air seats, respectively mounted on the pump body, each having an air inlet channel communicating with the air inlet port and an air outlet communicating with the air outlet port
  • the general air intake piece is installed on the air seat, and has a plurality of air intake branches corresponding to the air intake channels one-to-one and an air intake main channel connecting each air intake branch channel, which is used for parallel connection into multiple pumps.
  • the general air outlet is installed on the air seat, and has a plurality of air outlet branches corresponding to the air outlet channels and an air outlet main channel connecting each air outlet branch channel, which is used to connect in parallel airflow.
  • the vortex air pump provided by the present invention may also have such a feature, further comprising: a plurality of air seats, respectively mounted on the pump body, each having an air inlet channel communicating with the air inlet port and an air outlet communicating with the air outlet port A plurality of in-line parts are used to connect the air inlet and outlet channels of adjacent air seats, so as to connect the air flow output by the plurality of air pump units in series.
  • the impeller includes a wheel body, a mounting portion arranged in the middle of the wheel body, annular bosses located on both sides of the wheel body and surrounding the mounting portion, and a plurality of blades.
  • An arc-shaped groove is formed, and the cross-sectional line of the groove bottom surface of the arc-shaped groove is in the shape of an arc.
  • the main bearing force of the blade is mainly concentrated on the side close to the mounting part, and the location and shape of the arc groove make the thickness of the side of the annular boss close to the mounting part greater than the thickness of the side of the annular boss away from the mounting part, Such a design improves the bearing strength of the annular boss on the side close to the mounting portion.
  • the plurality of vanes are located in the arc-shaped groove and are fixedly connected to the annular boss in a semi-circumferential manner, the contact area between the vanes and the annular boss can be increased. Therefore, the overall strength of the impeller provided by the present invention is greatly improved, and it can withstand the centrifugal force caused by the rotational speed of 10000 r/min or more.
  • FIG. 1 is a perspective view of a vortex air pump in an embodiment of the present invention
  • FIG. 2 is a cross-sectional view of a vortex air pump in an embodiment of the present invention
  • FIG. 3 is a perspective view of an impeller in an embodiment of the present invention.
  • Fig. 4 is the front view of the impeller in the embodiment of the present invention.
  • Figure 5 is a side view of an impeller in an embodiment of the present invention.
  • FIG. 6 is a cross-sectional view of an impeller in an embodiment of the present invention.
  • Fig. 7 is the partial enlarged view of A in Fig. 6 of the present invention.
  • Fig. 8 is a partial enlarged view at B in Fig. 5 of the present invention.
  • Fig. 9 is the partial enlarged view of C place among Fig. 3 of the present invention.
  • Figure 10 is a schematic diagram of a general air intake in an embodiment of the invention.
  • Figure 11 is a schematic diagram of a general air outlet in an embodiment of the invention.
  • FIG. 12 is a schematic diagram of a serial member in a modification.
  • FIG. 1 is a perspective view of a vortex air pump in an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of the vortex air pump in the embodiment of the present invention.
  • the vortex air pump 100 in this embodiment includes three impellers 1 , a driving part 2 , three pump bodies 3 , three air seats 4 , a total air intake part 5 , and a total air outlet part 6 and heat sink 7 .
  • FIG. 3 is a perspective view of an impeller in an embodiment of the present invention.
  • Fig. 4 is a front view of the impeller in the embodiment of the present invention.
  • Figure 5 is a side view of the impeller in the embodiment of the present invention.
  • 6 is a cross-sectional view of an impeller in an embodiment of the present invention.
  • the impeller 1 in this embodiment includes a wheel body 11 , a mounting seat 12 , an annular boss 13 and a plurality of blades 14 .
  • the outer shape of the wheel body 11 is in the shape of a disc.
  • the outer shape of the mounting seat 12 is a hollow cylinder, the axis of the mounting seat 12 coincides with the axial direction of the wheel body 11 , and the bottom surface and the top surface of the mounting seat 12 are higher than both sides of the wheel body 11 .
  • the inner surface of the mounting seat 12 has a key groove with a rectangular cross-section, and the direction of the key groove is parallel to the axial direction of the mounting seat 12 to form the mounting portion.
  • the left end of the mounting seat 12 is higher than the annular boss 13 on the left side of the wheel body, and the outer peripheral surface of the left end of the mounting seat 12 has an annular groove.
  • the right end of the mounting seat 12 is between the right side of the wheel body 11 and the right annular boss 13 .
  • a reinforcing portion is provided at the position of the wheel body 11 close to the mounting seat 12. The cross-section of the reinforcing portion is trapezoidal, the large end is connected to the mounting seat 12, and the small end is connected to the wheel. Body 11 is connected.
  • Fig. 7 is a partial enlarged view of part A in Fig. 6 of the present invention.
  • two annular bosses 13 are respectively disposed on both sides of the wheel body 11 , both of the two annular bosses 13 surround the mounting seat 12 and the axes of the two annular bosses 13 coincide with the axis of the wheel body.
  • the outer peripheral surfaces of the two annular bosses 13 are both flush with the outer peripheral surface of the wheel body 11 .
  • the edge position of the top surface of the annular boss 13 has a circle of arc-shaped grooves 131, the bottom surface of the arc-shaped groove 131 is in the shape of a circular arc, and the depth of the arc-shaped groove 131 is gradually from approaching the mounting portion to the direction away from the mounting portion. Increase and then decrease.
  • annular boss 13 In order to improve the stability of the annular boss 13 and the wheel body 11 , the inner peripheral surface of the annular boss 13 and the end surface of the wheel body are transitionally connected by a circular arc surface. In addition, an annular groove is formed on the inner peripheral surface of the annular boss 12 .
  • the arc-shaped groove 131 is designed in a circular arc shape, which can accommodate more gas during the rotation of the impeller 1 , thereby improving the gas transmission power of the impeller 1 .
  • the main bearing force of the blade 14 is mainly concentrated on the side close to the mounting part, and the position and shape of the arc groove 131 make the thickness of the side of the annular boss 13 close to the mounting part larger than that of the annular convex The thickness of the side of the table 13 away from the mounting portion increases the connection strength of the blade 14 .
  • FIG. 8 is a partial enlarged view of B in FIG. 5 of the present invention.
  • two air passage grooves 111 are provided at the edge of the wheel body 11 , and the two air passage grooves 111 are symmetrically arranged around the axis of the annular boss 13 .
  • the air passage groove 111 penetrates the wheel body 11 from the groove bottom surface of the arc groove 131 on one side and extends to the groove bottom surface of the arc groove 131 on the other side, so as to communicate with the arc grooves 131 located on both sides of the wheel body 11 to balance the impeller 1.
  • the air pressure on both sides of the impeller 1 during high-speed operation ensures that the impeller 1 is always in a dynamic balance state.
  • the outer shape of the blade 14 is arc-shaped and has a convex portion.
  • the plurality of blades 14 located on the same side are all located in the arc-shaped groove 131, and the convex parts of the blades 14 are all arranged clockwise, that is, the convex parts of the blades 14 are all located on the circle with the center of the wheel body 11 as the center of the circle. , and the convex direction of each convex part faces the clockwise direction of the circle.
  • the position where the blade 14 is connected to the arc-shaped groove 131 is the extension starting part, the blade 14 extends along the axis of the annular boss 13 from the extension starting part, and the extended side surface is flush with the top surface of the annular boss 13 .
  • the side surface of the blade 14 away from the mounting portion is flush with the outer peripheral surface of the wheel body 11 .
  • the blades 14 are formed in a semi-enclosed and fixed manner, thereby strengthening the connection strength of the blades 14 and improving the bearing capacity of the blades 14 .
  • the extended side surface of the vane is flush with the top surface of the annular boss, and the side surface of the vane away from the mounting portion is flush with the outer peripheral surface of the wheel body, which can prevent the vane from interfering with the pump body.
  • the extension starting part on one side of the wheel body 11 is between the adjacent extension starting parts on the other side.
  • the impeller 1 is integrally formed by a CNC machining center.
  • the wheel body 11 and the annular boss 13 are fixedly connected by bolts, and the blades 14 are fixed on the annular boss by welding. 13 in the arc-shaped groove 131.
  • FIG. 9 is a partial enlarged view of C in FIG. 3 of the present invention.
  • the end of the blade 14 extending from the bottom of the arc groove bottom along the axial direction of the annular boss has a groove portion 141 , and the groove portion 141 is located on one side of the convex surface of the blade.
  • the groove part is composed of two smoothly connected arc surfaces and a flat surface.
  • the driving member 2 is an electric motor, which has a casing (not shown in the figure), a stator (not shown in the figure) and a rotor (not shown in the figure).
  • the rotor is located inside the casing and is rotatably connected with the casing, and the stator is located between the rotor and the casing and is fixedly connected with the casing.
  • One side of the rotor has a drive shaft 21 extending out of the housing, the drive shaft 21 has three key grooves, all three key grooves are rectangular grooves, and the length direction of the three key grooves is parallel to the length direction of the drive shaft 21 .
  • the three key grooves on the drive shaft 21 are in one-to-one correspondence with the key grooves on the three impellers 1 to form three key chambers for placing keys.
  • the pump body 3 is composed of two symmetrically designed pump casings.
  • the shape of the pump casing is cylindrical.
  • the side of the pump casing has an installation chamber, a working chamber, and an intermediate chamber communicating with the installation chamber and the working chamber.
  • the two pump casings are spliced with each other so that the two installation chambers, the two working chambers and the two intermediate chambers are in one-to-one correspondence, thereby forming an accommodating chamber.
  • the peripheral surface of the pump casing has two semicircular through holes, and the through holes on the two pump casings form an air inlet and an air outlet communicating with the accommodating working chamber in a one-to-one correspondence.
  • the drive shaft 21 passes through an installation chamber in a pump body 3 and is rotatably connected to the pump casing through two bearings.
  • An impeller 1 is sleeved on the drive shaft 21 through the installation part, and is fixedly connected to the drive shaft 21 through a key, thereby Form the air pump unit.
  • the installation part of the impeller 1 is located in the installation chamber, the annular boss 13 of the impeller 1 and the impeller 1 are located in the working chamber, and the wheel body 11 connecting the mounting seat 12 and the annular boss 13 is located in the middle chamber.
  • the three pump bodies 3 are arranged coaxially.
  • the outside of the pump body 3 has seven connection seats distributed along the axis of the pump body 3, and the connection seat has one A through hole parallel to the axis of the pump body 3.
  • the through holes on the adjacent pump bodies 3 are on the same straight line, and the seven groups of bolt assemblies 31 pass through the through holes on the body in sequence, so as to connect the three pump bodies 3 fixedly.
  • the pump body 3 in the middle is fixedly connected to the pump bodies 3 on both sides through eight bolts 32 respectively, which further improves the stability of the connection between the pump bodies 3 .
  • the side surface of the pump body 3 close to the casing has two rings of annular bosses, and the two rings of annular bosses form a ring of clamping grooves.
  • the side surface of the casing has a clamping block which is matched with the clamping groove, and the clamping block is clamped in the clamping groove to fixedly connect the pump body 3 and the driving member 1 .
  • the driving member 2 is fixedly connected to the pump body 3 by means of snap connection, and directly drives the impeller to rotate through the driving shaft 21 .
  • the driving member 2 and the pump body 3 can also determine the positional relationship between the two through a mounting frame, and use an intermediate transmission mechanism, such as a cardan shaft, a reducer, and a drive transmission.
  • the three air seats 4 are formed by splicing two symmetrical seat bodies, and two semicircular channels with parallel axes are opened on one side of the seat body, and the semicircular channels on the two seat bodies are one
  • the air inlet 41 and the air outlet 42 are formed.
  • the seat body is fixed at the air inlet and the air outlet of the pump body 3 by means of bolt connection, so that the air inlet 41 communicates with the air inlet on the pump body 3 , and the air outlet 42 communicates with the air outlet on the pump body 3 .
  • Each seat body is provided with two threaded holes, and the three air seats 4 have a total of 12 threaded holes.
  • FIG. 10 is a schematic diagram of a general air intake in an embodiment.
  • the general air intake member 5 in this embodiment has one general air intake passage 51 and three air intake branch passages 52 communicating with the general air intake passage 51 .
  • the intake passage 41 on the seat 4 communicates with the three intake branch passages 52 on the general intake member 5 and the general intake passage 51 .
  • Fig. 11 is a schematic view of the total air outlet in the embodiment.
  • the general air outlet 6 in this embodiment has one general air outlet 61 and three air outlet branches 62 communicating with the general air outlet 61 .
  • the total air outlet 6 is provided with 12 installation holes, and 12 connecting bolts pass through the corresponding installation holes and are threadedly connected with the threaded holes on the seat body, so that the total air outlet 6 is fixed on the air seat 4, so that the air seat 4
  • the upper air outlet 42 and the three air outlet branches 62 on the general air outlet 6 communicate with the general air outlet 61 .
  • the heat sink 7 includes a heat sink and a plurality of heat sinks.
  • the heat sink is fixed on the pump body 3 at the left end by bolting, and the heat sinks 7 are fixed on the other two pump bodies 3 by welding.
  • the vortex air pump 100 provided in this embodiment is connected with three air pump units in parallel, and its working process is as follows: the motor is energized to drive the rotor to rotate, the rotor drives the three impellers 1 to rotate simultaneously through the drive shaft 21 , and the gas is discharged from the main air inlet 51 at this time. , the air inlet branch 52, the air inlet 41, the air inlet, and the working chamber are pressurized by the rotating impeller 1, and the pressurized gas is discharged from the pump through the air outlet, the air outlet branch 62, and the general exhaust duct 61. body 3.
  • the impeller 1 is in a high-speed rotation state. Since the vanes 14 are fixed in a semi-enclosed manner, the connection strength between the vanes 14 and the wheel body 11 is improved.
  • the impeller 1 has an air passage groove 111, and the air passage groove 111 is used for connecting the arc grooves 131 on both sides of the wheel body 11 to balance the air pressure on both sides. Therefore, the vortex air pump provided in this embodiment can operate at a rotational speed of 10000 r/min.
  • the driving member 2 drives three air pump units connected in parallel, so that the air delivery volume of the vortex air pump 100 can be increased.
  • the air delivery volume can be increased by increasing the number of air pump units, such as four air pump units, five air pump units, and the like.
  • the vortex air pump includes 3 impellers, a driving part, 3 pump bodies, an air seat, a total air inlet part and a total air outlet part.
  • the drive shaft on the drive frame extends into the pump body and is fixedly connected to the impeller in the pump body.
  • the air seat is arranged at the air inlet and the air outlet on the pump body, the total air inlet is arranged on the air seat and communicated with the air inlet, and the total air outlet is arranged on the air seat and communicated with the air outlet, so as to be connected in parallel
  • the airflow generated by the three impellers increases the air delivery volume of the vortex air pump.
  • the impeller in the vortex air pump includes a wheel body, a mounting part arranged in the middle of the wheel body, annular bosses located on both sides of the wheel body and surrounding the mounting part, and a plurality of blades, wherein the edge parts of the sides of the annular bosses on both sides are An arc-shaped groove is formed, and the cross-sectional line of the groove bottom surface of the arc-shaped groove is in the shape of an arc.
  • the main bearing force of the blade is mainly concentrated on the side close to the mounting part, and the location and shape of the arc groove make the thickness of the side of the annular boss close to the mounting part greater than the thickness of the side of the annular boss away from the mounting part, Such a design improves the bearing strength of the annular boss on the side close to the mounting portion.
  • the plurality of vanes are located in the arc-shaped groove and are fixedly connected to the annular boss in a semi-circumferential manner, the contact area between the vanes and the annular boss can be increased. Therefore, the overall strength of the impeller provided by the present invention is greatly improved, and it can withstand the centrifugal force caused by the rotational speed of 10000 r/min or more.
  • the edge of the impeller wheel body is provided with an air passage extending from the bottom surface of the arc-shaped groove groove on one side to the bottom surface of the arc-shaped groove groove on the other side. It can be passed through the air passage, so the air pressure on both sides of the wheel body can be balanced when the impeller is in a high-speed dynamic state, so as to ensure that the impeller is in a dynamic balance state, so as to realize the high-speed operation of the impeller.
  • the design of the arc groove increases the space between two adjacent blades, more gas can be accommodated, thereby improving the efficiency of the impeller to compress the gas.
  • the blades of the wheel bodies on both sides are arranged in a staggered manner, the distribution of the blades is more uniform, thereby improving the dynamic balance performance of the impeller.
  • the vortex-type air pump in this modification is substantially the same in structure as the vortex-type air pump 100 in the embodiment, and the difference lies in that the total air inlet part and the total air outlet part on the air seat are changed to the serial part 8, so that the three air pump units The output air flows are connected in series.
  • FIG. 12 is a schematic diagram of a serial member in a modification.
  • the serial member 8 has a general air inlet 81 , a general air outlet 82 and two air passages 83 .
  • the external shape of the serial member 8 is rectangular, and its four corners have through holes.
  • the connecting bolts pass through the through holes and are threadedly connected to the air seat, so that the serial member is fixed on the air seat, so that the total air inlet 81 is communicated with the air inlet 41 of the left air seat, and the total air outlet 82 is connected to the right air seat.
  • the air outlet 42 is connected, one of the air passages 83 is connected to the air outlet 42 on the left air seat and the air inlet 41 of the middle air seat, and the other air passage 83 is connected to the air outlet 42 on the middle air seat and the middle right air seat. the intake port 41.
  • the compressed gas enters the middle pump body through the gas passage in the serial member 8 to be compressed again, and the recompressed gas passes through the gas passage in the serial member 8.
  • the channel enters the right pump body for final compression, so as to obtain gas with higher pressure to meet the working requirements of actual gas-consuming equipment.
  • the serial member 8 is an integral structure, which is used to connect the air inlets and air outlets of adjacent pump bodies in series, so as to realize the step-by-step pressure of the gas, so as to meet the working requirements of the gas-using equipment.
  • the serial member 8 can also be in the form of an assembly, as long as the same function can be achieved.
  • the serial member 8 can be composed of multiple pipe fittings, and the air outlet of the left pump body is connected to the middle through the pipe fittings respectively. The air inlet of the pump body is connected, and the air outlet of the middle pump body is connected with the air inlet of the right pump body.
  • multiple air pump units can be connected in series in sequence, such as four air pump units, five air pump units, six air pump units, etc., and increase according to the actual pressure demand The number is sufficient, and the number of other air pump units will not be illustrated here.

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Abstract

一种叶轮(1)及具有该叶轮(1)的旋涡式气泵(100)，该叶轮(1)包括：轮体(11)，中部具有用于套设在驱动轴上的安装部；两个环形凸台(13)，分别设置在轮体(11)的两侧且环绕安装部形成；两个弧形槽(131)，分别沿环形凸台(13)的边缘部位形成；多个叶片(14)，位于弧形槽(131)内并与环形凸台(13)呈半包围固定连接；其中，弧形槽(131)的槽底面截面线呈圆弧形状，弧形槽(131)的深度在从靠近安装部至远离安装部的方向上逐渐增大后减小。该叶轮提高了靠近安装部一侧的环形凸台的承受强度和叶片与环形凸台的接触面积，从而大大提升了叶轮的整体强度，使叶轮能够承受超高转速所带来的离心力。

Description

一种叶轮及旋涡式气泵 技术领域
本发明涉及气泵技术领域，公开了一种叶轮及旋涡式气泵。
 背景技术
旋涡式气泵包括驱动电机以及多个气泵单元，每个气泵单元均包括泵体以及位于泵体内的叶轮，驱动电机驱动叶轮同时转动从而产生高压气体。
现有技术中存在各种不同形式的旋涡式气泵，例如，CN202273916U公开了一种旋涡式气泵的叶轮，包括一体浇筑成型的轮毂、分隔板以及多个叶片，其中，分隔板设置在轮毂的径向延伸处，多个叶片沿着分隔板左右对称分布且左右两边的叶片间隔错开，且轮毂、分隔板以及叶片的连接处设置有加强筋。
在上述一体成型类型的叶轮中，加强筋能够增加叶片连接强度。然而，当旋涡式气泵以高转速运转（例如10000r/min以上）时，由于叶片受到的离心力极大增加，该加强筋结构的连接强度仍然有限，叶片无法高转速所带来的离心力，因而仍然易损坏。
 技术问题
本发明是为了解决上述问题而进行的，目的在于提供一种强度更高、更能够适应高速运转的叶轮。
 技术解决方案
本发明提供了一种叶轮，安装在气泵内，用于对气体进行加压，包括：轮体，中部具有用于套设在驱动轴上的安装部；两个环形凸台，分别设置在轮体的两侧且环绕安装部形成；两个弧形槽，分别沿环形凸台的边缘部位形成；多个叶片，位于弧形槽内；其中，弧形槽的槽底面截面线呈圆弧形状，弧形槽的深度在从靠近安装部至远离安装部的方向上逐渐增大后减小。
在本发明提供的叶轮中，还可以具有这样的特征：其中，轮体的边缘部位设有从一侧的弧形槽槽底面穿过轮体并延伸至另一侧的弧形槽槽底面的过气槽。
在本发明提供的叶轮中，还可以具有这样的特征：其中，各个叶片分别从弧形槽的槽底面沿环形凸台的轴线方向延伸，叶片延伸形成的外侧面与环形凸台的侧面相平齐。
在本发明提供的叶轮中，还可以具有这样的特征：其中，叶片与弧形槽相连接的位置为延伸起始部，位于轮体一侧的延伸起始部在另一侧相邻延伸起始部之间。
在本发明提供的叶轮中，还可以具有这样的特征：其中，多个叶片呈弧形，均具有凸起部，位于同一侧的多个叶片上的凸起部均顺时针设置。
在本发明提供的叶轮中，还可以具有这样的特征：其中，叶片远离安装部的侧面与轮体的外周面相平齐。
在本发明提供的叶轮中，还可以具有这样的特征：其中，两个环形凸台的轴线与轮体的轴线相重合。
一种旋涡式气泵，包括：多个依次连接的泵体，均具有形成在内部的容纳腔室以及与腔室连通的进气口和出气口；多个叶轮，与泵体一一对应形成气泵单元，多个叶轮分别设置容纳腔室内；驱动件，具有驱动轴，驱动轴贯穿各个泵体；其中，各个叶轮的安装部套设在驱动轴上，并在驱动轴的驱动下转动形成气流。
在本发明提供的旋涡式气泵中，还可以具有这样的特征，还包括：多个气座，分别安装在泵体上，均具有与进气口连通的进气道以及与出气口连通的出气道；总进气件，安装在气座上，具有多个与进气道一一对应的进气支道以及将各个进气支道连通的进气总道，用于并联连通进入多个泵体的空气；总出气件，安装在气座上，具有多个与出气道一一对应的出气支道以及将各个出气支道连通的出气总道，用于并联连通从多个泵体输出的气流。
在本发明提供的旋涡式气泵中，还可以具有这样的特征，还包括：多个气座，分别安装在泵体上，均具有与进气口连通的进气道以及与出气口连通的出气道；多个串通件，用于连通相邻气座的进气道以及出气道，从而串联连通多个气泵单元输出的气流。
 有益效果
根据本发明所涉及的叶轮，由于包括轮体、设置在轮体中部的安装部、位于轮体两侧并环绕安装部的环形凸台以及多个叶片，其中两侧环形凸台侧面的边缘部位形成有弧形槽，弧形槽的槽底面截面线呈圆弧形状，弧形槽的深度在从靠近安装部至远离安装部的方向上逐渐增大后减小，因此，在实际使用过程中，叶片主要的承受力主要集中在靠近安装部的一侧，而弧形槽设置的位置以及形状使得环形凸台靠近安装部的一侧的厚度大于环形凸台远离安装部的一侧的厚度，这样的设计提高了靠近安装部一侧的环形凸台的承受强度。此外，由于多个叶片位于弧形槽并与环形凸台呈半包围固定连接，因此，能够提高叶片与环形凸台的接触面积。所以，本发明提供给的叶轮整体强度大大提高，能够承受10000r/min或以上的转速所带来的离心力。
 附图说明
图1是本发明的实施例中旋涡式气泵的立体图；
图2是本发明的实施例中旋涡式气泵的剖视图；
图3是本发明的实施例中叶轮的立体图；
图4是本发明的实施例中叶轮的主视图；
图5是本发明的实施例中叶轮的侧视图；
图6是本发明的实施例中叶轮的剖视图；
图7是本发明的图6中A处局部放大图；
图8是本发明的图5中B处局部放大图；
图9是本发明的图3中C处局部放大图；
图10是发明的实施例中总进气件的示意图；
图11是发明的实施例中总出气件的示意图；以及
图12是变形例中串通件的示意图。
 本发明的最佳实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，以下结合实施例及附图对本发明作具体阐述。
< 实施例 >
图1是本发明的实施例中旋涡式气泵的立体图。图2是本发明的实施例中旋涡式气泵的剖视图。
如1图和图2所示，本实施例中的旋涡式气泵100包括3个叶轮1、驱动件2、3个泵体3、3个气座4、总进气件5、总出气件6以及散热件7。
图3是本发明的实施例中叶轮的立体图。图4是本发明的实施例中叶轮的主视图。图5是本发明的实施例中叶轮的侧视图。图6是本发明的实施例中叶轮的剖视图。
如图3至图6所示，本实施例中的叶轮1包括轮体11、安装座12、环形凸台13以及多个叶片14。
轮体11的外形呈圆板状。
安装座12的外形呈空心圆柱状，安装座12的轴线与轮体11的轴向相重合且安装座12的底面以及顶面均高出轮体11的两侧面。安装座12的内侧面具有截面呈矩形的键槽，键槽的方向与安装座12的轴线方向相平行，从而形成安装部。
如图6所示，安装座12的左端高出位于轮体左侧的环形凸台13，且安装座12左端的外周面具有环槽。安装座12的右端在轮体11的右侧面与右侧环形凸台13之间。此外，为提高安装座12与轮体11的稳定性，在轮体11靠近安装座12的位置设有加强部，该加强部的截面呈梯形，大端与安装座12连接，小端与轮体11连接。
图7是本发明的图6中A处局部放大图。
如图7所示，两个环形凸台13分别设置在轮体11的两侧，两个环形凸台13均环绕安装座12且两个环形凸台13的轴线与轮体的轴线相重合。两个环形凸台13的外周面均与轮体11的外周面相平齐。环形凸台13顶面的边缘位置具有一圈弧形槽131，弧形槽131的槽底面截面线呈圆弧形状，弧形槽131的深度在从靠近安装部至远离安装部的方向上逐渐增大后减小。
为提高环形凸台13与轮体11的稳定性，环形凸台13的内周面与轮体的端面通过圆弧面过渡连接。此外，在环形凸台12的内周面具有一圈环槽。
弧形槽131呈圆弧状的设计，在叶轮1转动的过程中能够容纳更过的气体，从而提高叶轮1的输气功率。此外，在实际使用过程中，叶片14主要的承受力主要集中在靠近安装部的一侧，而弧形槽131设置的位置以及形状使得环形凸台13靠近安装部的一侧的厚度大于环形凸台13远离安装部的一侧的厚度，从而提高了叶片14的连接强度。
图8是本发明的图5中B处局部放大图。
如图8所示，轮体11的边缘位置设有两个过气槽111，两个过气槽111以环形凸台13的轴线为中心对称设置。过气槽111自一侧弧形槽131的槽底面贯穿轮体11并延伸至另一侧弧形槽131的槽底面，用于连通位于轮体11两侧的弧形槽131，从而平衡叶轮1在高速运转时叶轮1两侧的气压，保证叶轮1始终处于动平衡状态。
如图3和图8所示，叶片14的外形均呈圆弧形，具有凸起部。位于同一侧的多个叶片14上均位于弧形槽131内，且叶片14的凸起部均顺时针设置，即，叶片14的凸起部均位于以轮体11的中心为圆心的圆上，且各个凸起部的凸起方向均朝向该圆的顺时针方向。叶片14与弧形槽131相连接的位置为延伸起始部，叶片14自延伸起始部起始沿环形凸台13的轴线延伸，延伸的侧面与环形凸台13的顶面相平齐。此外，叶片14远离安装部的侧面与轮体11的外周面相平齐。
通过上述设计，使得叶片14形成半包围固定方式，从而加强了叶片14的连接强度，提高了叶片14的承受能力。此外，叶片延伸的侧面与环形凸台的顶面平齐、叶片远离安装部的侧面与轮体的外周面相平齐能够防止叶片与泵体发生干涉。
为提高叶轮1的动平衡性能，位于轮体11一侧的延伸起始部在另一侧相邻延伸起始部之间。
在本实施例中，叶轮1通过数控加工中心一体加工成型，在其他的实施例中，轮体11与环形凸台13通过螺栓连接的方式固定连接，叶片14通过焊接的方式固定在环形凸台13上的弧形槽131内。
图9是本发明的图3中C处局部放大图。
如图7及图9所示，叶片14自弧形槽底部的底部沿环形凸台的轴向延伸的末端具有凹槽部141，凹槽部141位于叶片凸面的一侧。凹槽部由两个光顺连接的弧面以及一个平面组成。
驱动件2为电动机，具有外壳（图中未示）、定子（图中未示）以及转子（图中未示）。转子位于外壳的内部并与外壳转动连接，定子位于转子与外壳之间并与外壳固定连接。其中，转子的一侧具有伸出外壳的驱动轴21，驱动轴21上具有三个键槽，三个键槽均为矩形槽，且三个键槽的长度方向与驱动轴21的长度方向相平行。驱动轴21上三个键槽与三个叶轮1上的键槽一一对应，形成三个用于放置键的键腔室。
如图2所示，泵体3通过两个对称设计的泵壳组成。泵壳的外形呈圆柱状。泵壳的侧面具有安装腔室、工作腔室以及连通安装腔室以及工作腔室的中间腔室。两个泵壳相互拼接使得两个安装腔室、两个工作腔室以及两个中间腔室一一对应，从而形成容纳腔室。泵壳的周面具有两个半圆形的通孔，两个泵壳上的通孔一一对应形成与容纳工作腔室连通的进气口以及出气口。
驱动轴21穿过一个泵体3中的安装腔室并通过两个轴承与泵壳转动连接，一个叶轮1通过安装部套设在驱动轴21上，并通过键与驱动轴21固定连接，从而形成气泵单元。其中，叶轮1的安装部位于安装腔室内，叶轮1的环形凸台13以及叶轮1位于工作腔室内，连接安装座12与环形凸台13的轮体11位于中间腔室内。
在本实施例中三个泵体3同轴设置，为提高相邻泵体3之间的稳定性，泵体3的外部具有七个沿泵体3轴线分布的连接座，连接座上具有一个与泵体3轴线相平行的贯穿孔。相邻泵体3上的贯穿孔在同一条直线上，七组螺栓组件31依次穿过本体上的贯穿孔，从而将三个泵体3固定连接。此外，位于中间的泵体3通过八根螺栓32分别与两侧的泵体3固定连接，进一步提高泵体3之间连接的稳定性。
为防止三个气泵单元脱离驱动轴21，在本实施例中，靠近外壳的泵体3的侧面具有两圈环形凸台，两圈环形凸台形成一圈卡槽。外壳的侧面具有与卡槽相适配的卡块，卡块卡接在卡槽内从而固定连接泵体3以及驱动件1。
在本实施例中，驱动件2通过卡接的方式与泵体3固定连接，并通过驱动轴21直接驱动叶轮转动。在其他的实施例中，驱动件2和泵体3还可以通过一个安装架确定两者之间的位置关系，并通过中间传动机构，如：万向轴、减速器、带动传动等。
如图2所示，三个气座4均为两个对称的座体拼接而成，在座体的一侧面开设两个轴线平行的半圆形通道，两个座体上的半圆形通道一一对应，形成进气道41以及出气道42。座体通过螺栓连接的方式固定在泵体3的进气口以及出气口处，使得进气道41与泵体3上的进气口连通，出气道42与泵体3上的出气口连通。每个座体均设有两个螺纹孔，三个气座4总共具有12螺纹孔。
图10是实施例中总进气件的示意图。
如图10所示，本实施例中的总进气件5具有一个总进气道51以及与总进气道51连通的三个进气支道52。总进气件5上设有12个安装孔，12根连接螺栓穿过对应的安装孔并与座体上的螺纹孔螺纹连接，从而将总进气件5固定在气座4上，使得气座4上的进气道41与总进气件5上的三个进气支道52与总进气道51相连通。
图11是实施例中总出气件的示意图。
如图11所示，本实施例中的总出气件6具有一个总出气道61以及与总出气道61连通的三个出气支道62。总出气件6上设有12个安装孔，12根连接螺栓穿过对应的安装孔并与座体上的螺纹孔螺纹连接，从而将总出气件6固定在气座4上，使得气座4上的出气道42与总出气件6上的三个出气支道62与总出气道61相连通。
散热件7包括散热座以及多个散热片，散热座通过螺栓连接的方式固定在位于左端的泵体3上，多个散热件7通过焊接的方式固定在其余两个泵体3上。
本实施例提供的旋涡式气泵100为并联连通三个气泵单元，其工作过程如下：电动机通电驱动转子转动，转子通过驱动轴21驱动三个叶轮1同时转动，此时气体由总进气道51、进气支道52、进气道41、进气口、工作腔室并通过旋转的叶轮1进行加压，加压后的气体由出气口、出气支道62、总排气道61排出泵体3。
旋涡式气泵100在工作过程中，叶轮1处于高速转动状态，由于叶片14采用半包围的方式进行固定，提高了叶片14与轮体11的连接强度。此外，叶轮1上具有过气槽111，过气槽111用于连通轮体11两侧的弧形槽131，平衡两侧的气压。因此本实施例提供的旋涡式气泵能够在10000r/min转速下运行。
在本实施例中，驱动件2驱动三个并联连通的气泵单元可以提高旋涡式气泵100的输气量。在其他的实施例中，可通过提高气泵单元的数量的方式提高输气量，如四个气泵单元、五个气泵单元等。
实施例的作用与效果
根据本发明所涉及旋涡式气泵包括3个叶轮、驱动件、3个泵体、气座、总进气件以及总出气件，驱动架上的驱动轴伸入泵体与泵体内的叶轮固定连接，气座设置在泵体上的进气口以及出气口处，总进气件设置在气座上并与进气口连通，总出气件设置在气座上并与出气口连通，从而并联连通三个叶轮产生的气流，提高了旋涡式气泵输气量。
此外，旋涡式气泵中的叶轮，包括轮体、设置在轮体中部的安装部、位于轮体两侧并环绕安装部的环形凸台以及多个叶片，其中两侧环形凸台侧面的边缘部位形成有弧形槽，弧形槽的槽底面截面线呈圆弧形状，弧形槽的深度在从靠近安装部至远离安装部的方向上逐渐增大后减小，因此，在实际使用过程中，叶片主要的承受力主要集中在靠近安装部的一侧，而弧形槽设置的位置以及形状使得环形凸台靠近安装部的一侧的厚度大于环形凸台远离安装部的一侧的厚度，这样的设计提高了靠近安装部一侧的环形凸台的承受强度。此外，由于多个叶片位于弧形槽并与环形凸台呈半包围固定连接，因此，能够提高叶片与环形凸台的接触面积。所以，本发明提供给的叶轮整体强度大大提高，能够承受10000r/min或以上的转速所带来的离心力。
根据本发明所涉及的旋涡式气泵，叶轮轮体的边缘部位设有从一侧的弧形槽槽底面延伸至另一侧的弧形槽槽底面的过气槽，所以轮体两个的气体可通过过气槽路通，因此在叶轮处于高转速动态下能够平衡轮体两侧的气压，保证叶轮处于动平衡状态，从而实现叶轮高速运转。
根据本发明所涉及的旋涡式气泵，因为弧形槽的设计增加了相邻两个叶片之间的空间，所以能够容纳更多的气体，从而提高了叶轮压缩气体的效率。
在发明提供的旋涡式气泵中，因为两侧轮体的叶片交错设置，使得叶片分布更均匀，从而提高了叶轮的动平衡性能。
< 变形例 >
本变形例中的旋涡式气泵与实施例中的旋涡式气泵100大致结构相同，其区别之处在于在将气座上总进气件以及总出气件改为串通件8，使得三个气泵单元输出的气流串联连通。
图12是变形例中串通件的示意图。
如图12所示，串通件8具有总进气口81、总出气口82以及两个过气通道83。串通件8的外形呈矩形，其四个角部具有贯穿孔。连接螺栓穿过贯穿孔与气座螺纹连接，从而将串通件固定在气座上，使得总进气口81与左侧气座的进气道41连通，总出气口82与右侧气座的出气道42连通，其中一个过气通道83连通左侧气座上出气道42以及中间气座的进气道41，另一个过气通道83连通中间气座上出气道42以及中右侧气座的进气道41。
在实际工作的过程中，左侧泵体对气体进行压缩后，压缩后的气体通过串通件8中的过气通道进入中间的泵体再次压缩，再次压缩的气体通过串通件8中的过气通道进入右侧泵体进行最终压缩，从而获得压力更高的气体，以满足对实际用气设备的工作需求。
在本变形例中，串通件8为整体式结构，用于串联连通相邻泵体的进气口以及出气口，实现气体逐级加压，从而达到用气设备的工作需求。在其他的实施例中，串通件8也可以是组件的形式，只要能够实现相同的作用即可，如，串通件8可以由多跟管件构成，通过管件分别将左边泵体的出气口与中间泵体的进气口连通、将中间泵体的出气口与右边泵体的进气口连通即可。
此外，在其他的变形例中，为获得压力更高的气体，可将多个气泵单元依次串联连接，如四个气泵单元、五个气泵单元、六个气泵单元等，根据实际的压力需求增加数量即可，在此不对其他气泵单元的数量进行举例说明。
上述实施方式为本发明的优选案例，并不用来限制本发明的保护范围。

Claims (10)

  1. 一种叶轮，安装在气泵内，用于对气体进行加压，其特征在于，包括：
    轮体，中部具有用于套设在驱动轴上的安装部；
    两个环形凸台，分别设置在所述轮体的两侧且环绕所述安装部形成；
    两个弧形槽，分别沿所述环形凸台的边缘部位形成；
    多个叶片，位于所述弧形槽内；
    其中，所述弧形槽的槽底面截面线呈圆弧形状，所述弧形槽的深度在从靠近所述安装部至远离所述安装部的方向上逐渐增大后减小。
  2. 根据权利要求1所述的叶轮，其特征在于：
    其中，所述轮体的边缘部位设有从一侧的所述弧形槽槽底面穿过所述轮体并延伸至另一侧的所述弧形槽槽底面的过气槽。
  3. 根据权利要求1所述的叶轮，其特征在于：
    其中，各个所述叶片分别从所述弧形槽的槽底面沿所述环形凸台的轴线方向延伸，所述叶片延伸形成的外侧面与所述环形凸台的侧面相平齐。
  4. 根据权利要求1所述的叶轮，其特征在于：
    其中，所述叶片与所述弧形槽相连接的位置为延伸起始部，位于所述轮体一侧的所述延伸起始部在另一侧相邻所述延伸起始部之间。
  5. 根据权利要求1所述的叶轮，其特征在于：
    其中，多个所述叶片呈弧形，均具有凸起部，位于同一侧的多个所述叶片上的所述凸起部均顺时针设置。
  6. 根据权利要求1所述的叶轮，其特征在于：
    其中，所述叶片远离所述安装部的侧面与所述轮体的外周面相平齐。
  7. 根据权利要求1所述的叶轮，其特征在于：
    其中，两个所述环形凸台的轴线与所述轮体的轴线相重合。
  8. 一种旋涡式气泵，其特征在于，包括：
    多个依次连接的泵体，均具有形成在内部的容纳腔室以及与所述腔室连通的进气口和出气口；
    多个叶轮，与所述泵体一一对应形成气泵单元，多个所述叶轮分别设置所述容纳腔室内；
    驱动件，具有驱动轴，所述驱动轴贯穿各个所述泵体；
    其中，所述叶轮为如权利要求1至权利要求7任意一项所述的叶轮，
    各个所述叶轮的安装部套设在所述驱动轴上，并在所述驱动轴的驱动下转动形成气流。
  9. 根据权利要求8所述的旋涡式气泵，其特征在于，还包括：
    多个气座，分别安装在所述泵体上，均具有与所述进气口连通的进气道以及与所述出气口连通的出气道；
    总进气件，安装在所述气座上，具有多个与所述进气道一一对应的进气支道以及将各个所述进气支道连通的进气总道，用于并联连通进入多个所述泵体的空气；
    总出气件，安装在所述气座上，具有多个与所述出气道一一对应的出气支道以及将各个所述出气支道连通的出气总道，用于并联连通从多个所述泵体输出的所述气流。
  10. 根据权利要求8所述的旋涡式气泵，其特征在于，还包括：
    多个气座，分别安装在所述泵体上，均具有与所述进气口连通的进气道以及与所述出气口连通的出气道；
    多个串通件，用于连通相邻所述气座的所述进气道以及所述出气道，从而串联连通多个所述气泵单元输出的气流。
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