CN209180011U - Blade electronics aspiration pump - Google Patents

Abstract

The application discloses a kind of blade electronics aspiration pump, including the pump housing, mounting base and motor, the pump housing includes stator, rotor, lower cover and upper cover, stator is equipped with oblong cavity, rotor is arranged concentrically in the oblong cavity, gap between stator and rotor constitutes two sections of pump chambers, and one end of blade is located in blade slot, and the other end is abutted with the cavity wall of oblong cavity；Stator is equipped with air inlet, venthole and 2 symmetrical perforation air intake ducts, and the upper surface of stator, which is equipped with, penetrates through the non-through air inlet duct that air intake duct is connected to 2, and non-through air inlet duct is also connected to air inlet；The lower end surface of stator is equipped with non-through outgassing groove, and non-through outgassing groove is connected to venthole；Air inlet flow-guiding channel and outlet flow-guiding channel are additionally provided in the pump housing, perforation air intake duct is connected to pump chamber by air inlet flow-guiding channel, and pump chamber is connected to non-through outgassing groove by outlet flow-guiding channel, and lower cover and upper cover are for being sealed the pump housing.The application can effectively improve the sealing performance of pump.

Description

Blade electronics aspiration pump

Technical field

This application involves aspiration pump field more particularly to a kind of blade electronics aspiration pumps.

Background technique

When carrying out environmental monitoring gas sampling, need to use high efficiency, small in size, light-weight, pumping negative pressure height, flow Stable blade aspiration pump.Blade aspiration pump for environmental monitoring sampling is mostly the pump body structure of centering type, i.e. rotor is inclined The heart is set in bore of stator, constitutes the variable volume air cavity of aspiration pump, but since the rotor of centering type blade aspiration pump is opposite In stator there are eccentricity, for rotor in stator interior high speed rotation there are eccentric force, eccentric force increases the vibration of rotor, It can aggravate the friction and fever between rotor and stator, cause the energy consumption of blade aspiration pump to increase, efficiency decline, and reduce blade The service life of aspiration pump.The blade aspiration pump of symmetrical structure can eliminate eccentricity and eccentric force, have more reasonable, higher The advantages of effect will be the first choice of gas sampling aspiration pump in atmosphere environment supervision instrument of new generation.

Notification number is a kind of new energy vehicle brake vacuum assist device electricity consumption disclosed in the Chinese patent of CN103306979B Sub- vacuum pump, which uses a complicated support base, and air inlet pipe and an air outlet pipe is arranged on pedestal, very When empty pump work, gas is entered by the air inlet pipe of support base, after the air storing cavity buffering of support base, is divided into left and right two-way, Two air inlet ducts for respectively enteing pump chamber lower cover, into a part of gas of lower cover air inlet duct, to enter pump chamber from bottom to top (i.e. fixed Son) air through hole, reach pump chamber upper cover air inlet duct, then enter from the top down from the outgassing groove communicated with upper cover air inlet duct The inner cavity of pump chamber；Another part gas into lower cover air inlet duct passes through the inner cavity that the diversion trench that communicates therewith enters pump chamber.Into Enter the gas of pump chamber sealed internal chamber, be finally discharged from the escape pipe of support base, forms four into two gas circuits gone out.

However, the rotary-vane vaccum pump of this symmetrical structure, structure is complicated for support base, admission line and outlet Pipeline all concentrates in support base, when vacuum pump work, gas circuit be related to support base, stator, rotor, blade, on pump chamber The parts such as lid, pump chamber lower cover, pump casing cover and actuating sleeve, the part that gas circuit is related to is more, will affect the sealing performance of pump.In order to change The sealing performance of the kind pump housing needs that a special-shaped seal ring or multiple ring type seals are arranged in support base, due to close Seal easily aging deforms, and the air-tightness of vacuum pump can not be effectively ensured, once vacuum pump gas leakage, can reduce the extraction flow of pump The performances such as amount, discharge stability are unable to satisfy the requirement of atmosphere environment supervision gas sampling.

Utility model content

The application provides a kind of blade electronics aspiration pump, to solve the sliding vane rotary vacuum pump of symmetrical structure, sealing performance Low problem.

A kind of blade electronics aspiration pump provided by the present application, comprising: the pump housing, mounting base and motor, the pump housing with it is described Motor is connected by the mounting base, and the pump housing includes stator, rotor, lower cover and upper cover, and the rotor is equipped with first axle Hole and several circumferentially equally distributed blade slots, blade is respectively equipped in the blade slot, and the stator is equipped with ellipse Cavity, the rotor are arranged concentrically in the oblong cavity, and the diameter of the rotor is equal to the short of the oblong cavity Axial length, the gap between the stator and the rotor constitute two sections of pump chambers, and one end of the blade is located in the blade slot, The other end of the blade is abutted with the cavity wall of the oblong cavity；

The stator is equipped with air inlet, venthole and 2 symmetrical perforation air intake ducts, and the upper surface of the stator is set Have and penetrate through the non-through air inlet duct that air intake duct is connected to 2, the non-through air inlet duct is also connected to the air inlet；It is described fixed The lower end surface of son is equipped with non-through outgassing groove, and the non-through outgassing groove is connected to the venthole；It is additionally provided in the pump housing Air inlet flow-guiding channel and outlet flow-guiding channel, the perforation air intake duct are connected to the pump chamber by the air inlet flow-guiding channel, The pump chamber is connected to the non-through outgassing groove by the outlet flow-guiding channel；The lower cover and the upper cover are used for institute The pump housing is stated to be sealed.

Optionally, the lower cover includes lower cover plate and lower sealing cover, and the lower sealing cover is equipped with the second axis hole；Under described Cover board is equipped with lower cover outgassing groove and third axis hole, and the both ends of the lower cover outgassing groove are communicated with lower cover gas outlet, the lower cover Gas outlet is connected to the pump chamber, and the lower cover outgassing groove is connected to the non-through outgassing groove；The lower cover gas outlet and institute It states lower cover outgassing groove and constitutes the outlet flow-guiding channel.

Optionally, the upper cover includes upper cover plate and top cover labyrinth, and the top cover labyrinth is equipped with the 4th axis hole；On described Cover board is equipped with the 5th axis hole and 2 symmetrical upper cover air inlet ducts, and the end of the upper cover air inlet duct is equipped with the upper cover being connected Air inlet；The upper cover air inlet duct is connected to the perforation air intake duct, and the upper cover air inlet is connected to the pump chamber, it is described on Lid air inlet duct and the upper cover air inlet constitute the air inlet flow-guiding channel；The upper cover plate is manufactured using graphite material.

Optionally, the lower cover plate is equipped with 2 symmetrical lower cover air inlet ducts, and the end of the lower cover air inlet duct is equipped with phase The lower cover air inlet of connection；The lower cover air inlet duct is connected to the perforation air intake duct, the lower cover air inlet and the pump chamber Connection, the lower cover air inlet duct and the lower cover air inlet constitute the air inlet flow-guiding channel；The lower cover plate uses graphite material Material manufacture.

Optionally, the outer of the stator lower end surface is equipped with the first sealed step, and the outer of the stator upper surface is equipped with Second sealed step；The upper surface of the lower sealing cover is equipped with the first returning lid, the first returning lid and first sealing Step cooperation, is sealed the lower part of the pump housing；The lower end surface of the top cover labyrinth be equipped with the second returning lid, described second Returning lid and second sealed step cooperate, and are sealed to the top of the pump housing.

Optionally, the upper surface of the lower sealing cover is equipped with first bearing mounting hole, the first bearing mounting hole and institute State the connection of the second axis hole；The lower end surface of the top cover labyrinth is equipped with second bearing mounting hole, the second bearing mounting hole and institute It states the 5th axis hole to be connected to, the inside of the first bearing mounting hole and the second bearing mounting hole is equipped with bearing.

Optionally, the blade electronics aspiration pump further includes transmission shaft, between the transmission shaft and the shaft of the motor It is connected by shaft coupling, the transmission shaft is step axle construction, and the diameter in the transmission shaft middle section is equal to the first shaft hole (51) diameter, the diameter of the both ends of the drive shaft are equal to the diameter in the bearing centre hole.

Optionally, the rotor spindle structure that the transmission shaft and the rotor are integrated；The lower cover plate and the lower sealing Lid is structure as a whole, and the upper cover plate and the top cover labyrinth are structure as a whole.

Optionally, radiator structure is equipped in the outer wall of the stator, the lower cover and these three components of upper cover；Institute The set-up mode of radiator structure is stated as bonding cooling fin, or opens up radiating groove.

Optionally, the quantity of the blade slot and the blade is 6,8,10,12,14 or 16.

When blade electronics pumping pump work provided by the present application, gas is entered by air inlet, by what is be connected to air inlet Non-through air inlet duct enters in two symmetrical perforation air intake ducts, then enters in pump chamber through air inlet flow-guiding channel, rotor drives Blade rotation, changes the volume size generating period of the sub- pump chamber in blade two sides, after being compressed to the gas of sucking, gas Enter non-through outgassing groove from outlet flow-guiding channel, is then discharged from venthole, to achieve the purpose that continuous air extraction.The application In, air inlet and venthole are arranged on stator, the gas circuit of gas circulation pertain only to stator, rotor, blade, upper cover and under Lid, i.e. gas only circulate in the pump housing, and the part that gas circuit is related to is reduced, and the sealing performance of blade electronics aspiration pump is more preferable, simultaneously So that the overall structure of pump is simpler, the cost of equipment is reduced, is conducive to improve the property such as pumping efficiency and discharge stability Energy.

Detailed description of the invention

Fig. 1 is a kind of overall structure exploded view of blade electronics aspiration pump shown in the embodiment of the present application；

Fig. 2 is the stator upper end surface structure schematic diagram shown in the embodiment of the present application；

Fig. 3 is the stator lower end surface structural schematic diagram shown in the embodiment of the present application；

Fig. 4 is a kind of pump body structure schematic diagram shown in the embodiment of the present application；

Fig. 5 is another pump body structure schematic diagram shown in the embodiment of the present application；

Fig. 6 is the stator side view shown in the embodiment of the present application；

Fig. 7 is the upper end surface structure schematic diagram of the lower sealing cover shown in the embodiment of the present application；

Fig. 8 is the lower end surface structural schematic diagram of the lower sealing cover shown in the embodiment of the present application；

Fig. 9 is the lower cover plate structural schematic diagram shown in the embodiment of the present application；

Figure 10 is the lower end surface structural schematic diagram of the top cover labyrinth shown in the embodiment of the present application；

Figure 11 is the upper end surface structure schematic diagram of the top cover labyrinth shown in the embodiment of the present application；

Figure 12 is the upper cover plate structural schematic diagram shown in the embodiment of the present application；

Figure 13 is the transmission shaft structure schematic diagram shown in the embodiment of the present application；

Figure 14 is the rotor structure schematic diagram shown in the embodiment of the present application；

Figure 15 is the rotor spindle structure schematic diagram shown in the embodiment of the present application；

Lower cover structure schematic diagram shown in Figure 16 the embodiment of the present application；

Superstructure schematic diagram shown in Figure 17 the embodiment of the present application；

The stator structure schematic diagram with radiator structure shown in Figure 18 the embodiment of the present application；

The lower sealing cover structural schematic diagram with radiator structure shown in Figure 19 the embodiment of the present application；

The top cover labyrinth structural schematic diagram with radiator structure shown in Figure 20 the embodiment of the present application；

Figure 21 is the mounting base structural schematic diagram shown in the embodiment of the present application.

Marginal data: the 1- pump housing；2- mounting base；3- motor；4- stator, 41- oblong cavity, 42- pump chamber, 43- air inlet Hole, 44- venthole, 45- perforation air intake duct, the non-through air inlet duct of 46-, the non-through outgassing groove of 47-, the first sealed step of 48-, The second sealed step of 49-, 410- stator through-hole；5- rotor, 51- first shaft hole, 52- blade slot, 53- blade；6- lower cover, 61- Lower cover plate, 611- lower cover outgassing groove, 612 third axis holes, 613- lower cover gas outlet, 614- lower cover air inlet duct, 615- lower cover air inlet Mouthful, 62- lower sealing cover, the second axis hole of 621-, 622- the first returning lid, 623- first bearing mounting hole, 624- lower cover through-hole, 625- mounting post；7- upper cover, 71- upper cover plate, the 5th axis hole of 711-, 712- upper cover air inlet duct, 713- upper cover air inlet, on 72- Sealing cover, 721 the 4th axis holes, 722- the second returning lid, 723- second bearing mounting hole, 724 upper cover through-holes；8- bearing；9- is passed Moving axis, 91- shaft coupling；10- radiator structure；11- annulus sealing ring.

Specific embodiment

In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with attached drawing, it is right Technical solution in the embodiment of the present application is clearly and completely described.

As Figure 1-Figure 5, the embodiment of the present application provides a kind of blade electronics aspiration pump, including the pump housing 1,2 and of mounting base Motor 3, the pump housing 1 are connect with motor 3 by mounting base 2, and mounting base 2 is used to support the pump housing 1, and connects the pump housing 1 and motor 3, electricity Machine 3 is for driving rotor 5 to rotate, to drive pumping pump work.

The pump housing 1 include stator 4, rotor 5, lower cover 6 and upper cover 7, rotor 5 be equipped with first shaft hole 51 and it is several circumferentially The blade slot 52 of even distribution is respectively equipped with blade 53 in blade slot 52, and the stator 4 is equipped with oblong cavity 41, and rotor 5 is same The heart is set in oblong cavity 41, and the short axle that the diameter of rotor 5 is equal to oblong cavity 41 is long, between stator 4 and rotor 5 Gap constitutes two sections of pump chambers 42, and one end of blade 53 is located in blade slot 52, the other end and the oblong cavity 41 of blade 53 Cavity wall abuts.

Referring to Fig. 2 and Fig. 3, stator 4 is equipped with air inlet 43, venthole 44 and 2 symmetrical perforation air intake ducts 45, fixed The upper surface of son 4, which is equipped with, penetrates through the non-through air inlet duct 46 that air intake duct 45 is connected to, non-through air inlet duct 46 and air inlet 43 with 2 Connection；The lower end surface of stator 4 is equipped with non-through outgassing groove 47, and non-through outgassing groove 47 is connected to venthole 44；It is also set in the pump housing 1 There are air inlet flow-guiding channel and outlet flow-guiding channel, perforation air intake duct 45 is connected to pump chamber 42 by air inlet flow-guiding channel, pump chamber 42 It is connected to non-through outgassing groove 47 by outlet flow-guiding channel.Lower cover 6 and upper cover 7 guarantee pumping for being sealed to the pump housing 1 Air-tightness when pump work.

In the present embodiment, referring to Fig. 4 and Fig. 5, stator 4 is equipped with oblong cavity 41, and rotor 5 is arranged concentrically in ellipse In cavity 41, the short axle that the diameter of rotor 5 is equal to oblong cavity 41 is long, make rotor 5 remain during rotation with it is ellipse The cavity wall of circular cavity 41 is tangent, since the long axis of oblong cavity 41 is greater than the diameter of rotor 5, can make stator 4 and rotor 5 it Between gap constitute two sections of pump chambers 42, rotor 5 is equal with the height of stator 4, the height of the length of blade 53 equal to rotor 5.When When motor 3 drives rotor 5 to rotate, rotor 5 will drive blade 53 and slide along the oblong cavity 41 of stator 4,5 rotary course of rotor In, one end of blade 53 is located in blade slot 52, and cavity wall of the other end of blade 53 always with oblong cavity 41 abuts against, and makes Pump chamber 42 is separated into several sub- pump chambers by blade 53, and every sub- pump chamber is confined space, can effectively prevent each sub- pump chamber it Between occur gas circulation, to increase extraction flow and improve discharge stability.

The working process and principle of the blade electronics aspiration pump are as follows: gas is entered by air inlet 43, process and air inlet The non-through air inlet duct 46 of 43 connections enters in two symmetrical perforation air intake ducts 45, then enters pump chamber through air inlet flow-guiding channel In 42, rotor 5 drives blade 53 to rotate, and blade 53 is close to the cavity wall of oblong cavity 41 always, the air inlet water conservancy diversion of the pump housing 1 is led to Road junction and outlet flow-guiding channel mouth are separated, the volume size generating period variation of the sub- pump chamber in 53 two sides of blade, by air inlet The sub- pump chamber of flow-guiding channel mouth side expands, at this point, intracavity gas pressure reduces, outside the air inlet flow-guiding channel mouth of aspiration pump Gas pressure intensity be greater than the gas pressure intensity in the sub- pump chamber of air inlet flow-guiding channel mouth side, gas is inhaled into, with turning for blade 53 Dynamic, the sub- pump chamber of outlet flow-guiding channel mouth side is gradually reduced, and the gas sucked is compressed, then gas compressed quilt Outlet flow-guiding channel imports non-through outgassing groove 47, is discharged from venthole 44, to achieve the purpose that continuous air extraction.

Air inlet 43 and venthole 44 are arranged on stator 4 the present embodiment, and lower cover 6 and upper cover 7 are used for the pump housing 1 Portion and lower part are sealed, to make entire aspiration pump without using pump cover, the gas circuit of gas circulation pertains only to stator 4, rotor 5, blade 53, lower cover 6 and upper cover 7, i.e. gas only circulate in the pump housing 1, and the part that gas circuit is related to is reduced, blade electronics aspiration pump Sealing performance it is more preferable, while make pump overall structure it is simpler, reduce the cost of equipment, be conducive to improve pumping effect The performances such as rate and discharge stability.

In addition, the pump housing 1 in the application uses without acceptance of persons away from (symmetrical centre of stator and rotor is overlapped, without acceptance of persons away from) Symmetrical structure design, when so that rotor 5 is relative to 4 high speed rotation of stator, centrifugal force is substantially not present, is revolved at a high speed in rotor 5 When turning, is conducive to form dynamic balancing between rotor 5 and stator 4, rubbing between rotor 5, blade 53 and stator 4 can be effectively reduced It wipes, reduces the calorific value of the pump housing 1, to increase the working efficiency and service life of blade aspiration pump.Also, exist in the pump housing 1 Two sections of pump chambers 42, this two sections of pump chambers 42, which can work at the same time, to be evacuated, and the speed of evacuation and extraction flow increase substantially, Be conducive to improve the working efficiency of aspiration pump.

Blade slot 52 is equal with the quantity of blade 53, for improve blade electronics aspiration pump extraction flow and pumping efficiency, The quantity of blade slot 52 and blade 53 is the even number more than or equal to 6, and such as 6,8,10,12,14 or 16, the quantity of blade 53 is determined The number of divisions of pump chamber is determined, for example for the aspiration pump of 10 blades, the number of divisions of pump chamber is 10, i.e. pump chamber 42 can be by 10 Blade 53 is separated into 10 sub- pump chambers.On the one hand, the number of blade 53 is more, and area occupied by blade is bigger, and blade institute The area occupied is bigger, so that the area that inlet chamber and discharge chamber occupy all can be smaller, this will be to extraction flow and pumping efficiency It is unfavorable；On the other hand, blade number is more, and air cavity separation is more uniform, and the stability of flow is better.Therefore, it can realize as needed Performance objective, to choose the quantity of blade 53, the application is not construed as limiting this.

Tapping thread can be distinguished at air inlet 43 and venthole 44, and air inlet gas nozzle is installed at air inlet 43, gone out Outlet gas nozzle is installed at stomata 44；When air inlet, gas enters air inlet 43 through air inlet gas nozzle；When exhaust, from non-through outgassing groove 47 flow to the gas of venthole 44, aspiration pump are discharged by outlet gas nozzle, convenient for the inflow and discharge of gas.

In the present embodiment, perforation air intake duct 45 can use perforation air inlet slot structure as shown in Figure 4, by stator 4 It is upper that symmetrical and slot up and down, Lai Shixian air inlet are set.Alternatively, perforation as shown in Figure 5 also can be used in perforation air intake duct 45 Air inlet group structure, two perforation air inlet groups are symmetrical, and each perforation air inlet group includes several through-holes.

It is used as the optional embodiment of the application below, as shown in fig. 6, the outer of 4 lower end surface of stator is equipped with the first sealing Step 48, the outer of 4 upper surface of stator are equipped with the second sealed step 49, and the first sealed step 48 and the second sealed step 49 are ring Shape structure.First sealed step 48 is located at the outside that non-through outgassing groove 47 and 2 symmetrically penetrates through air intake duct 45, the second sealing Step 49 is located at the outside that non-through air inlet duct 46 and 2 symmetrically penetrates through air intake duct 45.It can be in the upper and lower end face of stator 4 Edge circumferentially cuts the material layer with certain thickness and width, to form the first sealed step 48 and the second sealing Step 49.The processing method of first sealed step 48 and the second sealed step 49 is not limited to the present embodiment the cutting manufacture work Skill.

Lower cover 6 includes lower cover plate 61 and lower sealing cover 62, and lower cover plate 61 is crimped with the lower end surface of stator 4, for constructing Conductance circulation road, or construct conductance circulation road and air inlet flow-guiding channel；Lower sealing cover 62 is located at the bottom of lower cover plate 61, uses It is sealed in the lower part to the pump housing 1.

Specifically, as shown in Figure 7 and Figure 8, lower sealing cover 62 is equipped with the second axis hole 621, the upper surface of lower sealing cover 62 Equipped with the first returning lid 622, the first returning lid 622 and the first sealed step 48 cooperate, and the first returning lid 622 is stuck in the first sealing On the side wall of step 48, it is sealed with the lower part to the pump housing 1.

As shown in figure 9, lower cover plate 61 be equipped with lower cover outgassing groove 611 and third axis hole 612, the two of lower cover outgassing groove 611 End is communicated with lower cover gas outlet 613, and two lower cover gas outlets 613 are symmetrical, and lower cover gas outlet 613 is connected to pump chamber 42, and lower cover goes out Air drain 611 is connected to non-through outgassing groove 47.Lower cover outgassing groove 611 is arc groove, and symmetrical two lower cover gas outlets 613 are under Lid outgassing groove 611 runs through lower cover plate 61, and lower cover outgassing groove 611 and the non-through outgassing groove 47 of stator 4 are docked and connected.Pump chamber 42 In gas from lower cover gas outlet 613 flow out, be directed in lower cover outgassing groove 611, due to lower cover outgassing groove 611 with it is non-through Outgassing groove 47 is connected to, therefore gas can flow into non-through outgassing groove 47, and outside 44 discharge pump of venthole.Lower cover gas outlet 613 Constitute the outlet flow-guiding channel with lower cover outgassing groove 611, due to there are two lower cover gas outlets 613, and positional symmetry, mutually It is staggered, is equivalent to and forms two outlet flow-guiding channels, i.e., gas circuit is " two go out " form.

Upper cover 7 includes upper cover plate 71 and top cover labyrinth 72, and upper cover plate 71 crimps with the upper surface of stator 4, for construct into Conductance circulation road, top cover labyrinth 72 are located at the top of upper cover plate 71, are sealed for the top to the pump housing 1.

As shown in Figure 10 and Figure 11, top cover labyrinth 72 is equipped with the 4th axis hole 721, and the lower end surface of top cover labyrinth 72 is equipped with the Two returning lids 722, the second returning lid 722 and the second sealed step 49 cooperate, and the second returning lid 722 is stuck in the second sealed step 49 Side wall on, be sealed with the top to the pump housing 1.By lower sealing cover 62 and top cover labyrinth 72, the top to the pump housing 1 is realized With the stringent sealing of lower part, guarantee that aspiration pump has high-air-tightness.

As shown in figure 12, upper cover plate 71 is equipped with the symmetrical upper cover air inlet duct 712 of the 5th axis hole 711 and 2, upper cover air inlet The end of slot 712 is equipped with the upper cover air inlet 713 that is connected, and two upper cover air inlets 713 are symmetrical, upper cover air inlet duct 712 with pass through Logical air intake duct 45 is connected to, and upper cover air inlet 713 is connected to pump chamber 42.Two upper cover air inlet ducts 712 are arc groove, upper cover air inlet Slot 712 and two upper cover air inlets 713 run through upper cover plate 71, and upper cover air inlet duct 712 is docked with the perforation air intake duct 45 of stator 4 Connection.Gas is entered by air inlet 43, respectively enters two symmetrically by the non-through air inlet duct 46 being connected to air inlet 43 It penetrates through in air intake duct 45, since perforation air intake duct 45 is connected to upper cover air inlet duct 712, gas can flow upwardly into upper cover air inlet Slot 712, and upper cover air inlet 713 is flowed to from upper cover air inlet duct 712, it eventually enters into pump chamber 42.Upper cover air inlet duct 712 and upper cover Air inlet 713 constitutes the air inlet flow-guiding channel, due to there are two upper cover air inlets 713, and positional symmetry, mutually staggers, It is equivalent to and forms two air inlet flow-guiding channels, i.e., gas circuit is " two into " form.

At this point, the gas circuit of pump is " Two In and Two Out " form, in order to improve the circulation area of gas, reduce the circulation resistance of gas Power, increase air inflow and gas output further, can also equally construct air inlet on lower cover plate 61 and lead to improve pumping efficiency Circulation road, specific structure are: 2 symmetrical lower cover air inlet ducts 614 are also provided on lower cover plate 61, lower cover air inlet duct 614 End is equipped with the lower cover air inlet 615 being connected, and two lower cover air inlets 615 are symmetrical；Lower cover air inlet duct 614 and perforation air intake duct 45 connections, lower cover air inlet 615 are connected to pump chamber 42.

Two lower cover air inlet ducts 614 are arc groove, under lower cover air inlet duct 614 and two lower cover air inlets 615 run through Cover board 61, lower cover air inlet duct 614 and the perforation air intake duct 45 of stator 4 are docked and connected.Gas is entered by air inlet 43, by with into The non-through air inlet duct 46 that stomata 43 is connected to respectively enters in two symmetrical perforation air intake ducts 45, due to perforation air intake duct 45 with Lower cover air inlet duct 614 is connected to, therefore gas can flow downwardly into lower cover air inlet duct 614, and from lower cover air inlet duct 614 flow to lower cover into Port 615 eventually enters into pump chamber 42.It is logical that lower cover air inlet duct 614 and lower cover air inlet 615 equally constitute the air inlet water conservancy diversion Road due to there are two lower cover air inlets 615, and positional symmetry, mutually staggers, and is equivalent to that form two air inlet water conservancy diversion logical Road, i.e. gas circuit are also " two into " form.

The upper cover plate 71 and lower cover plate 61 of above structure, constitute the gas circuit structure of " four into two go out ", make air inflow, outlet Amount and the compression efficiency of gas are multiplied, and improve the working efficiency of aspiration pump, and gas flows through the formation of these components When gas circuit, gas flow area can be increased, sufficiently heat dissipation and noise elimination noise abatement.

Between the first sealed step 48 and the first returning lid 622 of 4 lower end surface of stator, an annulus sealing can be installed Circle 11, or binder can also be used therebetween, it is ensured that the sealing performance of 1 lower part of the pump housing；Similarly, in 4 upper end of stator Between second sealed step 49 and the second returning lid 722 in face, an annulus sealing ring 11 can be installed, or can also be in the two Between use binder, it is ensured that the sealing performance on 1 top of the pump housing.

Lower cover plate 61 and upper cover plate 71 use graphite material.The small and small coefficient of friction graphite material using density, to make Lower cover plate 61 and upper cover plate 71 the two parts are made, the weight of product on the one hand can be mitigated, on the other hand can lower high speed When movement, the friction of rotor 5 and blade 53 to lower cover plate 61 and upper cover plate 71 to reduce the calorific value of the pump housing 1, and reduces by zero Abrasion between part, conducive to the service life for improving aspiration pump.

Further, the upper surface of lower sealing cover 62 be equipped with first bearing mounting hole 623, first bearing mounting hole 623 with The connection of second axis hole 621；The lower end surface of top cover labyrinth 72 is equipped with second bearing mounting hole 723, second bearing mounting hole 723 and the The inside of the connection of five axis holes 711, first bearing mounting hole 623 and second bearing mounting hole 723 is equipped with bearing 8.Such as Fig. 1 and figure Shown in 13, blade electronics aspiration pump further includes transmission shaft 9, for driving rotor 5 to rotate, between transmission shaft 9 and the shaft of motor 3 It is connected by shaft coupling 91, transmission shaft 9 is step axle construction, and the diameter in 9 middle section of transmission shaft is equal to the diameter of first shaft hole 51, is passed The diameter at 9 both ends of moving axis is equal to the diameter of 8 centre bore of bearing.

The lower end of transmission shaft 9 is passed through the third axis on lower cover plate 61 by the first shaft hole 51 that transmission shaft 9 is passed through to rotor 5 Then bearing 8 is installed in the lower end of transmission shaft 9, then the lower end of transmission shaft 9 is made to sequentially pass through first bearing mounting hole in hole 612 623, after the second axis hole 621, mounting base 2, the lower end of transmission shaft 9 is connect with the shaft of motor 3 using shaft coupling 91；It will transmission The upper end of axis 9 passes through the 5th axis hole 711 of upper cover plate 71, then installs bearing 8 in the upper end of transmission shaft 9, then make transmission shaft 9 Upper end sequentially passes through second bearing mounting hole 723 and the 4th axis hole 721.Then transmission shaft 9 is installed.At the both ends of transmission shaft 9 Assemble bearing 8, it is ensured that the position precision of transmission shaft 9, rotor 5 and blade 53 reduces the vibration of rotor 5 and blade 53, drop The friction and fever of low aspiration pump.

In practical applications, as shown in Figure 13 and Figure 14, rotor 5 and transmission shaft 9 can be used as two individual parts, or As shown in figure 15 the rotor spindle structure being integrated is arranged in transmission shaft 9 and rotor 5 by person, replaces transmission by one part of armature spindle The repertoire of 5 the two parts of axis 9 and rotor.Transmission shaft 9 and rotor 5 are integrally combined as armature spindle one zero Part can be used a kind of material at this time to manufacture armature spindle part, reduce manufacturing cost.

As shown in figure 16, lower cover 6 is the structure that lower cover plate 61 and lower sealing cover 62 become one, lower sealing cover 62 Internal diameter is equal to the diameter of lower cover plate 61, binder can be used, lower cover plate 61 and lower sealing cover 6 are bonded as one.Lower cover 6 Upper surface can open up under 61 size of lower cover plate identical lower cover outgassing groove 611, two lower cover gas outlet 613, two The upper cover of lid air inlet duct 614 and two lower cover air inlets 615, formation has air inlet flow-guiding channel and outlet flow-guiding channel, thus A kind of material can be used to manufacture the lower cover 6 with air inlet flow-guiding channel and outlet flow-guiding channel, manufacturing cost can be saved, and And an axis hole need to be only opened up in lower cover 6.The lower cover 6 of part has both sealing, air inlet water conservancy diversion and outlet water conservancy diversion as a whole Function.Similarly, as shown in figure 17, upper cover plate 71 and top cover labyrinth 72 may also set up and be structure as a whole, and make upper cover 7 with air inlet Flow-guiding channel and sealing function, specific implementation can refer to the description of lower cover 6, and which is not described herein again.

Optionally, such as Figure 18-Figure 20, radiator structure is equipped in the outer wall of 7 these three components of stator 4, lower cover 6 and upper cover 10, the set-up mode of radiator structure 10 is bonding cooling fin, or opens up radiating groove, and the heat dissipation performance of aspiration pump can be improved. By taking lower cover 6 as an example, Figure 19 gives the upper and lower end face structure of the lower sealing cover with radiator structure, if lower cover plate 61 and lower sealing Lid 62 is the structure of separate type, then radiator structure is arranged in the outer wall of lower sealing cover 62；If lower cover plate 61 and lower sealing cover 62 It is integral structure, i.e., when lower cover 6 is an individual part, then radiator structure is set in the outer wall of entire lower cover 6.Upper cover 7 Setting is same as lower cover 6.

In order to guarantee to be evacuated stability, installation fastness and the air-tightness of pump configuration, stator 4, which can be equipped with, circumferentially uniformly to be divided 3 of cloth or 4 stator through-holes 410,410 internal tapping screw thread of stator through-hole can be by fasteners such as screw or bolts to lower cover 6, upper cover 7 and stator 4 carry out assembly connection.

So correspondingly, 722 outer rim of the second returning lid of top cover labyrinth 72 is equipped with 3 or 4 upper covers being uniformly distributed along the circumference Through-hole 724 can carry out assembly connection to stator 4 and upper cover 7 by fasteners such as screw or bolts.First time of lower sealing cover 62 622 outer rim of buckle closure is equipped with 3 or 4 lower cover through-holes 624 being uniformly distributed along the circumference, convenient after lower cover 6 and stator 4 assemble, and uses Screw or bolt etc. are fastenedly connected；622 outer rim of the first returning lid of lower sealing cover 62 is additionally provided with 3 or 4 mounting posts 625,625 tapping internal screw thread of mounting post, convenient for connecting mounting base 2 and motor 3 by fasteners such as screw or bolts.Referring to Fig.1 And Figure 21, corresponding mounting hole should be also set on mounting base 2 and motor 3, so as to consolidating between motor 3, mounting base 2 and the pump housing 1 Fixed connection.The structure of mounting base 2 is not especially limited, and those skilled in the art can select according to practical situations.

From the above technical scheme, when blade electronics pumping pump work provided by the present application, gas is entered by air inlet, Enter in two symmetrical perforation air intake ducts by the non-through air inlet duct that is connected to air inlet, then through air inlet flow-guiding channel into Enter in pump chamber, rotor drives blade rotation, changes the volume size generating period of the sub- pump chamber in blade two sides, to the gas of sucking After body is compressed, gas enters non-through outgassing groove from outlet flow-guiding channel, is then discharged from venthole, to reach continuous The purpose of pumping.Air inlet and venthole are arranged on stator, the gas circuit of gas circulation pertain only to stator, rotor, blade, on Lid and lower cover, i.e. gas only circulate in the pump housing, and the part that gas circuit is related to is reduced, and the sealing performance of blade electronics aspiration pump is more It is good, while making the overall structure of pump simpler, the cost of equipment is reduced, is conducive to improve pumping efficiency and stability of flow The performances such as property.In addition, sealed the embodiment of the present application also provides the gas circuit structure that four into two go out by upper cover and lower cover realization, By the design of air inlet flow-guiding channel and outlet flow-guiding channel, make the compression efficiency of air inflow, gas output and gas at multiplication Add, improve the working efficiency of aspiration pump, and when gas flows through the gas circuit of these components formation, gas circulating face can be increased Product, sufficiently heat dissipation and noise elimination noise abatement.Blade electronics aspiration pump described herein can satisfy atmosphere environment supervision gas sampling High request, and be not limited to apply in atmosphere environment supervision sampling.

Those skilled in the art are considering specification and after practicing utility model disclosed herein, will readily occur to practical Novel other embodiments.This application is intended to cover any variations, uses, or adaptations of the utility model, these Variations, uses, or adaptations follow the general principle of the utility model and including undocumented skills of the utility model Common knowledge or conventional techniques in art field.The description and examples are only to be considered as illustrative, the utility model True scope and spirit are pointed out by the attached claims.

It should be understood that the utility model is not limited to the accurate knot for being described above and being shown in the accompanying drawings Structure, and various modifications and changes may be made without departing from the scope thereof.The scope of the utility model is only wanted by appended right It asks to limit.

Claims (10)

1. a kind of blade electronics aspiration pump, including the pump housing (1), mounting base (2) and motor (3), the pump housing (1) and the motor (3) it is connected by the mounting base (2), the pump housing (1) includes stator (4), rotor (5), lower cover (6) and upper cover (7), described Rotor (5) is equipped with first shaft hole (51) and several circumferentially equally distributed blade slots (52), divides in the blade slot (52) Not She You blade (53), the stator (4) is equipped with oblong cavity (41), and the rotor (5) is arranged concentrically in the ellipse In shape cavity (41), the short axle that the diameter of the rotor (5) is equal to the oblong cavity (41) is long, the stator (4) and institute It states the gap between rotor (5) and constitutes two sections of pump chambers (42), one end of the blade (53) is located in the blade slot (52), institute The other end for stating blade (53) is abutted with the cavity wall of the oblong cavity (41), which is characterized in that

The stator (4) is equipped with air inlet (43), venthole (44) and 2 symmetrical perforations air intake duct (45), described fixed The upper surface of sub (4), which is equipped with, penetrates through the non-through air inlet duct (46) that air intake duct (45) are connected to, the non-through air inlet duct with 2 (46) it is connected to the air inlet (43)；The lower end surface of the stator (4) be equipped with non-through outgassing groove (47), it is described it is non-through go out Air drain (47) is connected to the venthole (44)；

Air inlet flow-guiding channel and outlet flow-guiding channel, the perforation air intake duct (45) and the pump are additionally provided in the pump housing (1) Chamber (42) is connected to by the air inlet flow-guiding channel, and the pump chamber (42) and the non-through outgassing groove (47) pass through the outlet Flow-guiding channel connection；The lower cover (6) and the upper cover (7) are for being sealed the pump housing (1).

2. blade electronics aspiration pump according to claim 1, which is characterized in that the lower cover (6) includes lower cover plate (61) With lower sealing cover (62), the lower sealing cover (62) is equipped with the second axis hole (621)；The lower cover plate (61) goes out equipped with lower cover The both ends of air drain (611) and third axis hole (612), the lower cover outgassing groove (611) are communicated with lower cover gas outlet (613), described Lower cover gas outlet (613) is connected to the pump chamber (42), and the lower cover outgassing groove (611) and the non-through outgassing groove (47) are even It is logical；The lower cover gas outlet (613) and the lower cover outgassing groove (611) constitute the outlet flow-guiding channel.

3. blade electronics aspiration pump according to claim 2, which is characterized in that the upper cover (7) includes upper cover plate (71) With top cover labyrinth (72), the top cover labyrinth (72) is equipped with the 4th axis hole (721)；The upper cover plate (71) is equipped with the 5th axis Hole (711) and 2 symmetrical upper cover air inlet ducts (712), the end of the upper cover air inlet duct (712) be equipped with the upper cover that is connected into Port (713)；The upper cover air inlet duct (712) is connected to the perforation air intake duct (45), the upper cover air inlet (713) and institute Pump chamber (42) connection is stated, the upper cover air inlet duct (712) and the upper cover air inlet (713) constitute the air inlet flow-guiding channel； The upper cover plate (71) is manufactured using graphite material.

4. blade electronics aspiration pump according to claim 2 or 3, which is characterized in that the lower cover plate (61) is equipped with 2 Symmetrical lower cover air inlet duct (614), the end of the lower cover air inlet duct (614) are equipped with the lower cover air inlet (615) being connected；Institute It states lower cover air inlet duct (614) to be connected to the perforation air intake duct (45), the lower cover air inlet (615) and the pump chamber (42) are even Logical, the lower cover air inlet duct (614) and the lower cover air inlet (615) constitute the air inlet flow-guiding channel；The lower cover plate (61) it is manufactured using graphite material.

5. blade electronics aspiration pump according to claim 3, which is characterized in that the outer of stator (4) lower end surface is set Have the first sealed step (48), the outer of stator (4) upper surface is equipped with the second sealed step (49)；

The upper surface of the lower sealing cover (62) is equipped with the first returning lid (622), the first returning lid (622) and described first Sealed step (48) cooperation, is sealed the lower part of the pump housing (1)；The lower end surface of the top cover labyrinth (72) is equipped with second Returning lid (722), the second returning lid (722) and second sealed step (49) cooperate, to the top of the pump housing (1) It is sealed.

6. blade electronics aspiration pump according to claim 3, which is characterized in that the upper surface of the lower sealing cover (62) is set Have first bearing mounting hole (623), the first bearing mounting hole (623) is connected to second axis hole (621)；It is described close The lower end surface for covering (72) is equipped with second bearing mounting hole (723), the second bearing mounting hole (723) and the 5th axis hole (711) it is connected to, the inside of the first bearing mounting hole (623) and the second bearing mounting hole (723) is equipped with bearing (8)。

7. blade electronics aspiration pump according to claim 6, which is characterized in that the blade electronics aspiration pump further includes passing Moving axis (9) is connect between the transmission shaft (9) and the shaft of the motor (3) by shaft coupling (91), the transmission shaft (9) For step axle construction, the diameter in transmission shaft (9) middle section is equal to the diameter of the first shaft hole (51), the transmission shaft (9) The diameter at both ends is equal to the diameter of the bearing (8) centre bore.

8. blade electronics aspiration pump according to claim 7, which is characterized in that the transmission shaft (9) and the rotor (5) The rotor spindle structure being integrated；The lower cover plate (61) and the lower sealing cover (62) are structure as a whole, the upper cover plate (71) It is structure as a whole with the top cover labyrinth (72).

9. blade electronics aspiration pump according to claim 1 or 8, which is characterized in that in the stator (4), the lower cover (6) and the outer wall of the upper cover (7) these three components is equipped with radiator structure (10)；The set-up mode of the radiator structure (10) To bond cooling fin, or radiating groove is opened up.

10. blade electronics aspiration pump according to claim 1, which is characterized in that the blade slot (52) and the blade (53) quantity is 6,8,10,12,14 or 16.