CN107429699A

CN107429699A - Self lubricating pump device

Info

Publication number: CN107429699A
Application number: CN201680011250.2A
Authority: CN
Inventors: 大卫·格莱尔特; 马修·史密斯; 内西米·埃尔图鲁尔
Original assignee: Smart Motor Solutions Private Ltd Co
Current assignee: Smart Motor Solutions Private Ltd Co; Intelligent Electric Motor Solutions Pty Ltd
Priority date: 2015-02-19
Filing date: 2016-02-18
Publication date: 2017-12-01
Also published as: ES2877430T3; AU2016222258A1; AU2016222258B2; EP3259479A4; WO2016131080A1; EP3259479B1; EP3259479A1

Abstract

A kind of self lubricating pump device, a part for fluid stream guiding device including the discharge side suitable for fluid to be taken to pump from suction side and the fluid stream suitable for obtaining discharge simultaneously redirects the fluid stream part of acquisition to lubricate the redirection fluid guiding device of drive shaft, and the drive shaft is responsible for the pump action of self lubricating pump device.

Description

Self lubricating pump device

Technical field

The present invention relates to a kind of pump installation, and it is using the impeller that control is rotated by motorized motions axle, for carrying out pumping behaviour Make, and relate more specifically to a kind of new and improved bearing insert device, so as to the rotation condition when pump fluid but fair Perhaps motorized shaft rotates freely motion.

Background technology

Generally, the drive shaft that the electronic axial sealing device of bearing insert and pump is largely installed designed for limitation Radial motion, but allow the motorized motions axle to rotate freely when pumping fluid simultaneously, the sealing device can also include machine Tool type seal and associated bearing lubrication system.

Due to restrictive pump motorized motions axle move radially and meanwhile allow motorized motions axle during fluid is pumped freely The inherent characteristic of rotation, have the associated bearing insert of appropriate bearing lubrication system and/or mechanically-sealing apparatus regular Need to safeguard, wherein the bearing insert of abrasion must be changed, and contact mechanical sealing member to check the state of lubricant.

Although any maintenance is all meddlesome because it provide it is a kind of prevent the method for failure, and also add pump group The life-span of part, but it also brings the challenge of its own simultaneously, such as lasting examination and maintenance bearing insert and/or pass Consider in the notable cost of the lasting requirement of the motorized motions shaft seal of pump and operation.

In addition, it is necessary to mechanical sealing member and the pump configuration of conventional bearings lubricating system make the complex designing of pump so that pump Manufacture costly, have potential limitation to efficiency because needing to consider tool operation and close to mechanical sealing member to repair, Because these pumps need regular dismounting to carry out enough inspections, with suitably safeguard the conventional bearings bushing to be checked and/ Or sealing device.

In addition, bearing and seal are the critical pieces in pump, its frequent failure simultaneously depends on periodic maintenance, therefore favorably Be to avoid this conventional arrangement for bearing and seal, and using more without Seal Design, its be not susceptible to therefore Hinder and/or without the need for periodic maintenance.

It would thus be advantageous to such a pump can be provided, its impeller controlled using being rotated in motorized motions axle, no Must be dependent on suitable for limiting the loss certainly that motorized motions Axial and radial is mobile but allows motorized motions axle to rotate freely during pumping Bearing insert and/or lubrication mechanical sealing member, alternately, its can be dependent on be configured in the device substantially from The system of lubrication, it can avoid moistening for the replaceable bushing of needs any routine for inspecting periodically and safeguarding and/or bearing The demand of sliding system.

It is an object of the present invention to provide such self lubricating pump device, or provide at can substantially improve or Eliminate the pump installation of some above mentioned problems.

Complete to read this specification, other objects and advantages of the present invention will become obvious.

The content of the invention

In a kind of form of the present invention, there is provided a kind of self lubricating pump device, the self lubricating pump device include：

Main casing block, the main casing block have the fluid intake in the first far-end and the fluid in the second far-end Outlet；

The stator being supported in the main casing block；

The rotor in stator is configured, the wherein induction signalling between rotor and stator is rotatably driven from the rotor The drive shaft extended longitudinally beyond；

For impeller component by the drive shaft rotation process, wherein impeller component includes the first face, the first face include one or Multiple openings, wherein when drive shaft is driven in rotation, each opening is suitable to obtain fluid from the fluid intake of main casing, and And a series of inner vanes wherein in impeller component are configured to radially discharge the fluid from the side of impeller component；

Fluid stream guiding device, it is suitable to the fluid stream that radially discharge is obtained from the side of impeller component, and guides institute State fluid discharge outlet of the fluid along hollow chamber or groove towards the second far-end of main casing group and left from it；

The impeller component is further characterized in that a series of inner vanes quilts for including the second face, wherein impeller component Between the first face and the second face, second face of impeller component has multiple holes to construction, and fluid can lead at the hole Cross, to coordinate with a series of inner vanes configured in impeller component；

Bearing insert, it is configured to support the driving during the drive shaft rotates when the drive shaft is driven Axle；

The bearing insert includes a series of open slots along the bearing insert length, when the drive shaft is driven Simultaneously during the drive shaft rotation, fluid can pass through along a series of open slots；

Fluid guiding device is redirected, it is suitable to the fluid stream for taking out part discharge, and by the institute of the fluid stream of discharge State part and be re-introduced into multiple holes in a series of open slots of bearing insert and on the second face for passing through impeller component, from And a part for the fluid stream of discharge is allowed to rejoin the fluid taken out from fluid suction side.

One advantage of this device is：By using the discharge fluid discharged by pump installation a part and pass through Main casing block redirects it to inside, and the redirection fluid may be directed in the groove of bearing insert to flow so as to realize The self-lubricating mechanism of body, so as to, when bearing insert be mounted to support when moving radially of drive shaft, due to the fluid stream along groove Lubricating system is provided, drive shaft rotates freely during pumping.

Advantageously, the lubricating system does not form a part for any mechanical seal, therefore need not inspect periodically or periodically Safeguard, simplify design, construction cost, efficiency and to realize appropriate accessory necessary to required pumping operation.

Because the fluid stream of redirection generates lubricating system between bearing insert and drive shaft, bushing in itself will not be certainly I wears, because from the point of view of rubbing angle, the CONTACT WITH FRICTION between drive shaft and bushing is minimum when fluid pumps, because again The part for being directed through the fluid stream for the discharge for redirecting fluid guiding device provides necessary lubrication.

Uniquely, impeller component not only includes one or more conventional opens on the first face (suction side), so as to from master The fluid intake of housing block obtains fluid stream, in addition to multiple openings on the second relative face, these openings can connect Receive and redirect fluid, the fluid that redirects is by the groove in installed bearing insert, to pass through impeller component when it A series of blade radials add main flow again when leaving.

Preferably, main casing is made up of two attachable half parts.

Preferably, self lubricating pump device also includes sub-component, and wherein sub-component may be supported on two of main casing block and can connect In the half part connect.

Preferably, the sub-component that may be supported in two attachable half parts of main casing block includes being suitable to be fastened on one Rise with least two parts of encapsulated stator and rotor.

Preferably, hollow chamber is by between two inner sides that can connect half part of main casing block and the outside of sub-component Every restriction.

Preferably, sub-component includes the first half part and the second half part, wherein the first half part and the second half part are fitted In tightening together with encapsulated stator and rotor.

Preferably, the first half part includes top surface, and top surface is configured to allow for impeller component to be placed on it.

Preferably, the top surface of the first half part includes forming a series of guiding of a part for fluid stream guiding device Plate.

Preferably, bearing insert includes upper flange.

Preferably, the top surface of the first half part includes central circular groove, and central circular groove has suitable for bearing insert The skirt section for having neck for the depression that upper flange is positioned in.

Preferably, the impeller component of substantial circular has corresponding central slot so that drivable axle is adapted to pass through peace The bearing insert of installation in the preceding cylindrical portions of vertical fluid stream guide device, to be insertable through in impeller component Heart slit, fastener are suitable to impeller component then is fixed into drivable shaft so that the electric induction between rotor and stator leads to Letter provides the rotary electric motion of drive shaft, and the rotary motion of wherein drive shaft is converted to the rotary motion of impeller component, to carry For pumping operability.

Preferably, the second half part of sub-component includes the part for being suitable to receive the discharge fluid stream redirected at one end Central slot.

Preferably, central slot includes filter.

Preferably, the first half part of sub-component and the second half part be configured to cooperation be clasped or frictional fit Mode combine, with encapsulated stator and rotor.

Preferably, the first half part of the sub-component of encapsulated stator and rotor and the second half part include outside prominent extension Part, help sub-component being arranged in main casing block.

Preferably, main casing block includes linking together to encapsulate all of the pump installation in addition to external power source The two half-unit of component.

It should be appreciated that the stator of winding, rotor and any other circuit or component associated with the electric induction operation of pump It is completely in appropriate insulating materials.

Brief description of the drawings

Now in order to understand the present invention in more detail, it will present and be preferable to carry out with the help of following illustration and appended text Mode.

Fig. 1 is the decomposition diagram of the self lubricating pump device in the preferred embodiment of the present invention.

Fig. 2 is the viewgraph of cross-section of the self lubricating pump device in the preferred embodiment of the present invention, is shown in addition from suction Enter to discharge and the primary fluid stream and/or self-lubricating fluid stream that return.

Fig. 3 a are the upward views that can install bearing insert, and Fig. 3 b are the self-lubricatings in the preferred embodiment of the present invention The overall perspective view for installing bearing insert of pump installation.

Fig. 4 is the underside perspective view of the impeller component of the self lubricating pump device in the preferred embodiment of the present invention.

Embodiment

Now referring more particularly to accompanying drawing, self lubricating pump device (10) is which provided.

Self lubricating pump device (10) includes the main casing block that can connect half portion (12) by two and (14) form, in Fig. 2 Best shown, two can connect half portion and can be connected together to encapsulate the remaining part and element of self-lubricating device (10).

Can be connected installed in two of main casing block half portion (12) and (14) it is internal be vertical fluid stream guiding device Sub-component, itself is made up of the half part (16) of two general cylindricals and (18) in a preferred embodiment, again such as Fig. 2 Best shown, they can be snapped to be combined together is determined with encapsulating and accommodating winding stator (26) wherein and be positioned at winding Rotor (24) in sub (26).

The sub-component for the vertical fluid stream guiding device being made up of two half-unit (16) and (18) also encapsulates printed circuit board (PCB) (33) and related Electrical and Electronic component, it connects work with being shown as the insulating power of (60) in Fig. 2, to exist in configuration Required induction signalling is provided between rotor (24) in stator (26) so that the sensing rotation of rotor (24) causes from rotor (24) drive shaft (28) to extend out accordingly rotates.

When the sub-component part (16) of vertical fluid guiding device and (18) encapsulated rotor (24) and stator (26) and phase During Electrical and Electronic component (33) of pass, drive shaft (28) is properly restrained by the bearing insert (22) of installation and radially transported Dynamic, as best seen in figure 2, bearing insert can be shelved in the slit (66) of the restriction of half part (18), wherein being shown as (67) depression has neck ring to allow the flange (75) of bearing insert (22) to position wherein.

Drive shaft (28) can pass through the opening (66) limited, and the distal end (7) of wherein drive shaft (28) can pass through Corresponding groove (91) through impeller component (20) is engaged with fastener (30), and impeller component (20) is fixed into drive shaft (28).Support ring (32), which additionally aids, is positioned at impeller (20) in main casing block.

Impeller component (20) is installed to drive shaft (28) so that it is oriented to the fluid from the half portion (14) of main casing block Suction inlet (51) obtains fluid, thus when drive shaft (28) is driven by the induction signalling between rotor (24) and stator (26) During dynamic rotation, impeller component (20) rotation, fluid can pass through the impeller component on the upper surface (87) of impeller component (20) (20) opening (92) is inhaled into, once wherein fluid passes through opening (92), it can coordinate with a series of inner vanes (46), Enable and be inhaled into by the fluid that block arrow in Fig. 2 (57) is shown by the opening (92) of impeller component (20), to pass through The side (94) of impeller (20) is radially discharged, and includes a portion wherein on the top surface (23) of sub-component end (18) The plate (25) of (27) is divided to be configured to obtain the fluid radially discharged from the side of impeller component (20) (94), to guide the discharge Fluid is through top surface (23) and downward along the longitudinal direction side part (29) of plate (25).

Once as shown in Fig. 2 sub-component (16) and (18) electrical machine element of encapsulated pump and drive shaft (28) beginning Rotation, as described above, fluid stream (57) main during pumping is operated is designed to suck fluid from opening (51), by it Guiding, can be with circulating inner vanes at opening (92) place of impeller component (20) by the opening (92) of impeller component (20) (46) coordinate, the speed of fluid is radially flowed out with increase, so as to along main casing block half portion (12) and (14) and receiving electrodynamic pump Inner chamber (44) between the closing sub-component (16) of component and (18) guides downwards.Wherein shown again by arrow (57) Fluid can leave main casing block (12) and (14) by fluid outlet (53).

But it is important in the invention that the main fluid shown in thicker arrow (57) as shown in Figure 2 is not only existed Stream, the redirection of a part for the main flow (57) represented by a series of thinner arrows represented with (80a) to (80g) also be present The foundation of stream.

The redirection flow table is shown as (80a), in its main flow from (57a), by means of the envelope of the electrical components for pump Fill the outline side (99) of the base section of the part (16) of sub-component.

The groove (40) of the restriction including filter (42) allows redirection stream to be introduced into encapsulation pump installation at main opening Motor sub-component end (16) boundary encapsulation hollow gap (101) in, shown by arrow (80b).

As described above, the actual Electrical and Electronic component of circuit board (33), rotor (24) and stator (26) is all by suitably Insulation so that into operation of the introduction to the Electrical and Electronic component of pump installation of the self-lubricating fluid (80b) of hollow chamber (101) Integrality there is no any adverse effect.

The lubrication flow (80b) of redirection is directed into opening (54), is shown by arrow (80c), and in observation Fig. 2 And be best shown during Fig. 3 a and Fig. 3 b, because bearing insert (22) along its main longitudinal column (70) includes a series of being properly aligned with Open interior groove (71), (72) and (73), this allow redirect lubrication flow be upward through these interior grooves openings (71), (72) and (73) so that when bearing insert (22) limitation drive shaft (28) is when moving radially, it still allows drive shaft to exist The rotary motion that fluid can freely lubricate when being pumped, this is due to redirect the sub-fraction of main fluid stream (57) to return The unique arrangement being back in sub-component (16) and (18) so that it is used as lubrication, so as to prevent bearing insert from delaying with being sacrificed Slowly fragmentation, traditional bearing insert move radially it is also often the case, that being limited because of drive shaft, but allow major part certainly By rotating, correspondingly to operate impeller component (20), traditional bearing insert slowly disappears during slight CONTACT WITH FRICTION.

Once fluid (80d) and (80e) are upwardly into bearing insert by interior grooves opening (71), (72) and (73) (22) inner side (77), then the redirection stream can coordinate with the opening (90) on the downside (89) of impeller component (20) to enter Impeller component, shown by arrow (80g), so as to add main fluid (57) again then correspondingly to be discharged from main casing block.

Advantageously, the lubricating fluid stream of redirection can be absorbed by being contained in the son being made up of two half-unit (16) and (18) Heat caused by electric assembly in component, once wherein it enters impeller component (20) and rejoins main fluid, heat is right It can be discharged afterwards by the fluid outlet (53) of the main casing block half portion of self lubricating pump device (10).

It will be appreciated that preferred embodiment that is described above and being related to Fig. 1 to Fig. 4 show one it is restricted excellent Embodiment is selected, is not considered as the limitation of the overall range to the present invention, overall range of the invention has been widely described For a part for present invention.

For example, bearing insert (22) shows three interior grooves openings (71), (72) and (73), wherein can have various The arrangement of various kinds is used for the equiulbrium flow along the redirection fluid of the inner side (77) of bearing insert, to establish the self-lubricating system needed System.

Moreover, the sub-component being made up of half portion (16) and (18) can also include support or external tabs (35) etc., this will So that when two exterior sections (12) and (14) are brought together, as shown in Fig. 2 sub-component easily can be installed and closed In main casing block.

Therefore, the present invention provide not only the self lubricating pump device of essence, and the present invention is also devised to allow pump installation Convenient assembly and disassembly, so as to any lasting dimension required during checking and maintaining the continuous service of self lubricating pump device Shield etc..

Claims

1. a kind of self lubricating pump device, the self lubricating pump device includes：

Main casing block, the main casing block have the fluid intake in the first distal end and the fluid discharge outlet in the second distal end；

Stator, it is supported in main casing block；

Rotor, it is constructed in stator, and the induction signalling wherein between rotor and stator is rotatably driven from the rotor and indulged To the drive shaft of extension；

Impeller component, it includes the first face by the drive shaft rotation process, wherein impeller component, and the first face includes one or more Individual opening, wherein when drive shaft is rotatably driven, each opening is suitable to obtain fluid from the fluid intake of main casing, and And a series of inner vanes wherein in impeller component are configured to radially discharge the fluid from a side of impeller component；

Fluid stream guiding device, it is suitable to the fluid stream that radially discharge is obtained from the side of impeller component, and guides the stream Fluid discharge outlet of the body along hollow chamber or slit towards the second far-end of main casing block simultaneously leaves from it；

The impeller component is further characterized in that to be constructed including the second face, a series of inner vanes of wherein impeller component Between the first face and the second face, second face of impeller component has multiple holes, fluid can at the hole by with A series of inner vanes with constructing in impeller component coordinate；

Bearing insert, it is configured to support the driving during the rotation of the drive shaft when the drive shaft is driven Axle；

The bearing insert includes a series of open slots along the bearing insert length, when the drive shaft is driven, Fluid can pass through along a series of open slots while the drive shaft rotation；

Fluid guiding device is redirected, it is suitable to the fluid stream for obtaining part discharge, and by the portion of the fluid stream of discharge Divide and be re-introduced into a series of open slots of bearing insert, and multiple holes on the second face for passing through impeller component, so as to A part for the fluid stream of discharge is allowed to rejoin the fluid obtained from fluid suction side.

2. self lubricating pump device according to claim 1, wherein the main casing is made up of two attachable half parts.

3. self lubricating pump device according to claim 2, in addition to a sub-component, wherein sub-component may be supported on main casing In two attachable half parts of body block.

4. self lubricating pump device according to claim 3, wherein being supported on two attachable half parts of main casing block Interior sub-component includes being suitable at least two parts to tighten together with encapsulated stator and rotor.

5. self lubricating pump device according to claim 4, wherein hollow chamber are by two attachable half portions of main casing block Interval between the inner side divided and the outside of sub-component limits.

6. self lubricating pump device according to claim 5, wherein sub-component include the first half part and the second half part, its In the first half part and the second half part be suitable to tighten together with encapsulated stator and rotor.

7. self lubricating pump device according to claim 6, wherein the first half part includes being configured to allow for impeller component to exist The top surface placed thereon.

8. self lubricating pump device according to claim 7, wherein the top surface of the first half part draws including forming fluid stream Lead a series of guide plates of a device part.

9. self lubricating pump device according to claim 1, wherein bearing insert include upper flange.

10. self lubricating pump device according to claim 8 or claim 9, wherein the top surface of the first half part includes central circular Groove, hollow circular groove have the skirt section led for the depression being positioned in suitable for the upper flange of bearing insert.

11. the second half part of self lubricating pump device according to claim 10, wherein sub-component includes at one end suitable In the central channel for receiving the part for redirecting discharge fluid stream.

12. self lubricating pump device according to claim 11, wherein central channel include filter.

13. the first half part of the self lubricating pump device according to any one of claim 6 to 12, wherein sub-component and Two half parts are configured in a manner of being clasped or be frictionally engaged of matching together, with encapsulated stator and rotor.

14. the sub-component of the self lubricating pump device, wherein encapsulated stator and rotor according to any one of claim 6 to 13 The first half part and the second half part include being suitable to the outside prominent extension that sub-component is arranged in main casing block by auxiliary it is auxiliary Assistant piece.