CN110107507A - Axial-flow pump with long service life - Google Patents
Axial-flow pump with long service life Download PDFInfo
- Publication number
- CN110107507A CN110107507A CN201910441549.7A CN201910441549A CN110107507A CN 110107507 A CN110107507 A CN 110107507A CN 201910441549 A CN201910441549 A CN 201910441549A CN 110107507 A CN110107507 A CN 110107507A
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- CN
- China
- Prior art keywords
- sleeve
- axial
- flow pump
- movable plate
- sliding panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000001914 filtration Methods 0.000 claims abstract description 20
- 210000004907 gland Anatomy 0.000 claims description 35
- 239000003351 stiffener Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000000806 elastomer Substances 0.000 claims description 7
- 239000004519 grease Substances 0.000 claims description 5
- 125000003003 spiro group Chemical group 0.000 claims description 5
- 239000000314 lubricant Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims 1
- 230000009471 action Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 230000006872 improvement Effects 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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
- F04D29/00—Details, component parts, or accessories
- F04D29/007—Details, component parts, or accessories especially adapted for liquid 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
-
- 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
- F04D29/18—Rotors
- F04D29/181—Axial flow 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid 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
- F04D3/00—Axial-flow pumps
- F04D3/005—Axial-flow pumps with a conventional single stage rotor
Abstract
The present invention provides a kind of axial-flow pumps with long service life, water inlet pipe including being installed on axial-flow pump ontology lower end, filtration net cover is laid in water inlet pipe, filtration net cover top filter screen, middle part body and lower tie plate, filtration net cover is axially arranged with first sleeve, lower tie plate offers first through hole, movable component is equipped in first through hole, movable component includes sliding panel and the movable plate for being articulated with lower tie plate edge, sliding panel is slidably connected movable plate, the edge matches of movable plate are in the edge of first through hole, sliding panel offers the arc groove to match with first sleeve shape, torsional spring is equipped between movable plate and lower tie plate, the bottom of first sleeve is connected to the inner wall of water inlet pipe by more brackets, first rotating shaft is rotatably equipped in first sleeve, first rotating shaft includes the exposed junction for exposing to the bottom end of first sleeve, outside The circumferential direction at dew end is laid with multiple blades.Axial-flow pump in the present invention can realize the collection to water plant or rubbish, and service life is longer.
Description
Technical field
The present invention relates to axial-flow pump fields, and in particular to a kind of axial-flow pump with long service life.
Background technique
An a kind of entitled patent for sewage disposal device axial-flow pump is disclosed in Data of China library, application No. is
CN201811085420.9, applying date 2018.09.18, Publication No. CN108843581A, publication date 2018.11.20.
This kind of sewage disposal device axial-flow pump, including axial-flow pump ontology are fixedly installed on the two sides inner wall of the axial-flow pump ontology
The same fixed link, the top side of fixed link are rotatably equipped with rotating bar, and the top of rotating bar is fixedly installed with placing frame, the axis
The top side of stream pump ontology is fixedly installed with fixed frame, is fixedly installed with rotating electric machine, rotating electric machine on the top side inner wall of fixed frame
Output shaft rotation axis is fixedly installed with by shaft coupling, and the bottom end of rotation axis is extended to positioned at the intrinsic placement of axial-flow pump
The inside of frame offers rotation slot on the bottom side inner wall of the placing frame, and the bottom end of rotation axis is rotatably installed in rotation slot.
Disadvantage is that although can be cleaned to the pollutant being deposited on the inner wall of axial-flow pump two sides, according to axial-flow pump
Use environment is different, when axial-flow pump in river or other water bodys for having pollutant in use, water plant and other korneforos rubbish meetings
It is wrapped on the rotation axis in axial-flow pump, guide vane or impeller, influences the using effect of axial-flow pump, reduce the use of axial-flow pump
Service life.
Summary of the invention
In view of the foregoing, it the present invention provides the axial-flow pump that the Ha Noi such as water plant rubbish can be cut and be collected to one kind, keeps away
Exempt to wind on rotation axis, guide vane or the impeller of axial-flow pump, extends the service life of axial-flow pump.
To achieve the above object, the invention discloses a kind of axial-flow pumps with long service life, comprising: be equipped with straight tube end with it is curved
The axial-flow pump ontology 1 of pipe end, the axial direction at the straight tube end are provided with rotation axis 2,2 upper end of rotation axis and axial-flow pump ontology 1
It is rotatablely connected and stretches out in the outside of axial-flow pump ontology 1,2 lower end of rotation axis is connected with guide vane 3 in turn from top to bottom
With impeller 4, straight tube end lower end is connected with water inlet pipe 5, and the inside of the water inlet pipe 5 is equipped with the filtration net cover of inner hollow
6, the filtration net cover 6 includes sequentially connected top filter screen 7, middle part body 8 and lower tie plate 9, the filter screen
The axial direction of set 6 is provided with first sleeve 10, and first through hole 29, the first sleeve 10 are offered in the middle part of the lower tie plate 9
Bottom wear and extend the first through hole 29, be provided in the first through hole 29 multiple logical for closing described first
The movable component in hole 29, the movable component include sliding panel 12 and the movable plate 11 for being articulated with 9 edge of lower tie plate,
The sliding panel 12 is slidably connected to one end close to the first sleeve of the movable plate 11, the sliding panel 12 and activity
It is provided with elastomer 13 between plate 11, the sliding panel 12 is applied far from described for the glide direction along the sliding panel 12
The active force of movable plate 11 is additionally provided with limiting device, multiple activity groups between the sliding panel 12 and the movable plate 11
The edge matches of the movable plate 11 in part are in the edge of the first through hole, the close first set of the sliding panel 12
One end of pipe offers the arc groove to match with the first sleeve shape, the movable plate 11 and the lower tie plate 9
Between be equipped with torsional spring 21, to form an entirety for closing the first through hole for being closed multiple movable components, it is described
The bottom of first sleeve is connected to the inner wall of the water inlet pipe 5 by more brackets 22, is rotatably equipped in the first sleeve
First rotating shaft 23, the first rotating shaft 23 include the exposed junction for exposing to the bottom end of the first sleeve, the week of the exposed junction
There are multiple blades 24, axially inclined laying of the blade along the first rotating shaft 23, the blade of the blade to uniformly distributed
It is arranged downward.
The beneficial effects of the present invention are: after axial-flow pump starting, first rotating shaft 23 is rotated under the action of water flow, band moving knife
Piece rotation cuts the impurity such as water plant or rubbish using blade realization；Movable component is dug upwards simultaneously, is cut into small
The impurity of block enters filtration net cover, realizes the filtering to above-mentioned impurity using filtration net cover, impurity is avoided to enter axial-flow pump sheet
It is wrapped in body on rotation axis, guide vane or impeller, ensure that the normal work of axial-flow pump, extend service life.
Present invention axial-flow pump with long service life further improvement lies in that, the upper surface of the movable plate 11, which is equipped with, to be fixed
Seat 25 is installed with the second casing 27 on the lower tie plate, is rotatably equipped with the second shaft 26 in the fixing seat, and described the
The end of two shafts 26 is rotatably inserted in second casing 27, and the torsional spring 21 is socketed on second shaft 26
On, the first end of the torsional spring 21 is support on the movable plate 11, and the second end of the torsional spring 21 is support on the lower part and fixes
Plate.By the way that torsional spring 21 is arranged between movable plate 11 and lower tie plate, after axial-flow pump is closed, movable component is multiple in torsional spring 21
It is closed under the action of the power of position, avoids the impurity being adsorbed in filtration net cover from falling, realize the collection to water plant or rubbish.
Present invention axial-flow pump with long service life further improvement lies in that, the both ends of the first sleeve are respectively formed use
In the annular groove for placing bearing, the first rotating shaft 23 by bearing rotational installation in the first sleeve, described the
The first end of one shaft 23 is formed with the shaft shoulder, and a bearing, the bottom of the shaft shoulder are laid between the shaft shoulder and the annular groove
End fits in the inner ring end face of corresponding bearing, and the upper surface of the shaft shoulder offers hemispheric lower arc groove, the lower circle
The sphere 33 to match is placed in arc slot, the top of the shaft shoulder is connected with the first gland 34, opens up on first gland
Have and be matched with the upper cular arc groove that the sphere 33 and radius are less than 33 radius of sphere, the top of the sphere 33 passes through simultaneously
The upper cular arc groove is exposed to, the first end end face corresponding to the shaft shoulder of the first sleeve is connected with the second gland
35, the lower end surface of second gland 35 is formed with the arc groove 36 for matching 33 top of sphere, the top of the sphere 33
It is set to the slot bottom clearance fit in the arc groove 26 and with the arc groove 26, second gland 35 and first sleeve 10
Between be provided with first seal, the bottom end of the first sleeve 10 is connected with third gland 37, the third gland 37 and institute
It states and is laid with another bearing between first sleeve 10,37 contact of third gland is in the cycle surface of another bearing, and described
Three glands and first sleeve lower end surface are provided with second seal, offer on the third gland and wear for the first rotating shaft 23
If third through-hole 38, between the third through-hole 38 and the first rotating shaft 23 be equipped with third sealing element.Using the above structure,
Realize the stability for guaranteeing first bearing operating while accurate positioning to first bearing.
The further improvement of present invention axial-flow pump with long service life is, the sphere 33 and the upper cular arc groove
And have gap between the lower arc groove, it is coated with lubricant grease in the gap, is equipped between the upper cular arc groove and sphere
4th sealing element.The radial and axial limit to first rotating shaft 23 is further realized, guarantees the installation accuracy of first bearing.
Present invention axial-flow pump with long service life further improvement lies in that, being radially provided with for the top filter screen is a plurality of
The stiffener 39 of radial arrangement, the first end of the stiffener 39 are connected to first sleeve, the second end of the stiffener
It is connected to the middle part body 8.By the way that stiffener is arranged, the structural strength of top filter screen entirety is improved.
Present invention axial-flow pump with long service life further improvement lies in that, the movable plate 11 close to the first set
One end of pipe, which is offered, slides the sliding groove 14 set for the sliding panel 12, lays on the length direction of the slot bottom of the sliding groove 14
There are multiple positioning columns 15, the pilot hole 16 of the opening direction setting along the sliding groove, the cunning are offered on the positioning column
Movable plate 12 is equipped with alignment and is matched with the guide post 17 of the pilot hole, and the elastomer 13 is compressed spring, the compression
The first end of spring is socketed on the positioning column 15, and the second end of the compressed spring is socketed on the guide post 17.Pass through
Compressed spring is laid between sliding panel 12 and movable plate 11, it is ensured that the arc groove fitting of sliding panel 12 when axial-flow pump is shut down
In the outer wall of first sleeve.
The further improvement of present invention axial-flow pump with long service life is that the limiting device is described including being opened in
It threaded hole on movable plate, the limiting slot 19 being opened on the sliding panel 12 and is bolted in the threaded hole and protrudes into described
Spiro connecting piece 18 in limiting slot 19, the limiting slot 19 is laid along the glide direction of the sliding panel 12, on the movable plate 11
Offer the threaded hole corresponding to the limiting slot 19.The limit to movable plate 11 is realized by spiro connecting piece 18, avoids making
It is shifted with sliding panel 12 in the process, cannot achieve closing when axial-flow pump is shut down to first through hole.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Axial-Flow pump of the present invention.
Fig. 2 is water inlet pipe internal structure enlarged diagram in the present invention.
Fig. 3 is the structural schematic diagram of movable component in the present invention.
Fig. 4 is the enlarged diagram in Fig. 3 at A.
Fig. 5 is the enlarged diagram in Fig. 2 at B.
Fig. 6 is the enlarged diagram in Fig. 2 at C.
Fig. 7 is the enlarged diagram in Fig. 2 at D.
Fig. 8 is the structural schematic diagram of middle and upper part filter screen of the present invention.
Specific embodiment
For the benefit of to understanding of the invention, it is illustrated with reference to the accompanying drawings and embodiments.
Refering to fig. 1 to Fig. 6 it is found that the invention discloses a kind of axial-flow pumps with long service life, including be equipped with straight tube end with
The axial-flow pump ontology 1 at bend pipe end, the axial direction at straight tube end are provided with rotation axis 2, and 2 upper end of rotation axis and the rotation of axial-flow pump ontology 1 connect
The outside of axial-flow pump ontology 1 is connect and stretches out in, 2 lower end of rotation axis is connected with guide vane 3 and impeller 4 in turn from top to bottom；Directly
Pipe end lower end is connected with water inlet pipe 5, and the inside of water inlet pipe 5 is equipped with the filtration net cover 6 of inner hollow, filtration net cover 6 include according to
Top filter screen 7, middle part body 8 and the lower tie plate 9 of secondary connection, the axial direction of filtration net cover 6 are provided with first sleeve 10,
First through hole 29 is offered in the middle part of lower tie plate 9, the bottom of first sleeve 10 wears and extend first through hole 29, and first is logical
Multiple movable components for being used to close first through hole 29 are provided in hole 29, movable component includes sliding panel 12 and is articulated with lower part
The movable plate 11 at 9 edge of fixed plate, sliding panel 12 are slidably connected to one end of the close first sleeve of movable plate 11, sliding panel 12
It is provided with elastomer 13 between movable plate 11, sliding panel 12 is applied far from movable plate for the glide direction along sliding panel 12
11 active force is additionally provided with limiting device between sliding panel 12 and movable plate 11, the side of the movable plate 11 in multiple movable components
Along the edge for being matched with first through hole 29, one end of the close first sleeve 10 of sliding panel 12 is offered and 10 shape of first sleeve
The arc groove 20 to match is equipped with torsional spring 21, for making multiple movable component closeds between movable plate 11 and lower tie plate 9
At an entirety of closing first through hole, the bottom of first sleeve is connected to the inner wall of water inlet pipe 5 by more brackets 22, and first
First rotating shaft 23 is rotatably equipped in casing 10, first rotating shaft 23 includes the exposed junction for exposing to the bottom end of first sleeve 10, outside
The circumferential direction at dew end is uniformly distributed multiple blades 24, axially inclined laying of the blade 24 along first rotating shaft 23, the blade of blade 24
It is arranged downward.In the present embodiment, (1) be may be implemented by laying the filtration net cover 6 of inner hollow to water plant in water or rubbish
It collects, avoiding enter into axial-flow pump ontology 1 influences the normal work of axial-flow pump；(2) by by blade 24 along first rotating shaft 23
Axially inclined laying, when axial-flow pump normal operation, blade 24 will drive first rotating shaft 23 by the active force of water flow and rotate, this
When high-speed rotating blade 24 water plant in water, rubbish can be cut into fritter, avoid blocking water inlet pipe 5；(3) pass through activity group
Part realizes the closing to first through hole 29, and when axial-flow pump is shut down, movable component closes first through hole 29 under the action of torsional spring 21,
Sliding panel 12 in movable component fits in the outer edge of first sleeve 10 under the action of elastomer 13, avoids filter sheath net 6
In water plant or rubbish fall, realize collection to above-mentioned water plant or rubbish.Specifically, the shape in a ring of body 8 in the middle part of (1)；(2)
Filtration net cover 6 is mounted in water inlet pipe 5, in connection structure the present embodiment between filtration net cover 6 and water inlet pipe 5 not
It is described in detail, specifically refers to the prior art.
Further, the upper surface of movable plate 11 is equipped with fixing seat 25, is installed with the second casing 27 on lower tie plate 9,
The second shaft 26 is rotatably equipped in fixing seat 25, the end of the second shaft 26 is rotatably inserted in the second casing 27, is turned round
Spring 21 is socketed in the second shaft 26, and the first end of torsional spring 21 is support on movable plate 11, and the second end of torsional spring 21 is support on lower part
Fixed plate 9.In the present embodiment, during axial-flow pump normal operation, movable plate 11 is under the action of water flow pressure, to turning over
Turn, torsional spring 21 is compressed at this time, and after axial-flow pump is shut down, movable plate 11 restores under the action of 21 reset force of torsional spring to initial bit
(i.e. the position of movable component closing first through hole) is set, realizes the closing to first through hole.
Further, the both ends of first sleeve are respectively formed the annular groove for placing bearing, and first rotating shaft 23 passes through axis
It forwards to move and be installed in first sleeve, the first end of first rotating shaft 23 is formed with the shaft shoulder, and one is laid between the shaft shoulder and annular groove
Bearing, the bottom end of the shaft shoulder fit in the inner ring end face of corresponding bearing, and the upper surface of the shaft shoulder offers hemispheric lower arc groove,
The sphere 33 to match is placed in lower arc groove, the top of the shaft shoulder is connected with the first gland 34, offers on the first gland
Assigned in sphere 33 and radius is less than the upper cular arc groove of 33 radius of sphere, and the top of sphere 33, which passes through and exposes to circular arc, to be led to
Slot, the first end end face corresponding to the shaft shoulder of first sleeve are connected with the second gland 35, and the lower end surface of the second gland 35 is formed with
The arc groove 36 on 33 top of sphere is matched, the top of sphere 33 is set in arc groove 26 and matches with the slot bottom gap of arc groove 26
It closes, first seal is provided between the second gland 35 and first sleeve 10, the bottom end of first sleeve 10 is connected with third gland
37, third gland 37 and first sleeve 10 are laid with another institute's bearing and are pressed against another bearing, and 37 contact of third gland is in another
The cycle surface of bearing is equipped with second seal between 10 lower end surface of third gland 37 and first sleeve, opens on third gland 37
Equipped with the third through-hole 38 worn for first rotating shaft 23, third sealing element is equipped between third through-hole 38 and first rotating shaft 23.This
In embodiment, realized by the setting shaft shoulder, the first gland 34, the second gland 35 and sphere 33 to 23 first end of first rotating shaft
The accurate positionin of bearing is realized the accurate positionin to 23 second end bearing of first rotating shaft by setting third gland, is guaranteed with this
The installation accuracy of first rotating shaft 23 avoids shifting in rotation process, reduces the noise in axial-flow pump operational process.
Further, have between sphere 33 and upper cular arc groove and lower arc groove gap (clearance fit), applied in gap
There is lubricant grease, the 4th sealing element is equipped between upper cular arc groove and sphere 33.Specifically, by the way that sphere 33 and upper circular arc are led to
Clearance fit and lubricant grease is coated between slot and lower arc groove, it is ensured that sphere 33 rolls in 23 rotation process of first rotating shaft
Smoothness, by lay the 4th sealing element, guarantee the sufficient lubrication of mutual sealed connection and sphere 33, avoid lubricating
Grease leakage or water enter in gap.
Further, one end of the close first sleeve of movable plate 11 is offered for the sliding sliding groove 14 set of sliding panel 12,
It is laid with multiple positioning columns 15 on the length direction of the slot bottom of sliding groove 14, the opening along sliding groove 14 is offered on positioning column 15
The pilot hole 16 of direction setting, sliding panel 12 are equipped with alignment and are matched with the guide post 17 of pilot hole 16, and elastomer 13 is pressure
Contracting spring, the first end of compressed spring are socketed on positioning column 15, and the second end of compressed spring is socketed on guide post 17.This implementation
In example, by laying compressed spring between sliding panel 12 and movable plate 11, it is ensured that sliding panel 12 exists when axial-flow pump is shut down
The outer wall of first sleeve 10 is fitted under the action of compressed spring, guarantees to realize the closing to first through hole 29；By that will be oriented to
Column 17, to realize to the guiding of sliding panel 12, avoids shifting in 12 slipping of sliding panel in alignment with pilot hole 16；Specifically
, 17 one end of guide post is inserted in the pilot hole 16.
Further, limiting device include the threaded hole being opened on movable plate 11, the limit that is opened on sliding panel 12
Position and is bolted in threaded hole and protrudes into the spiro connecting piece 18 in limiting slot 19 slot 19, glide direction of the limiting slot 19 along sliding panel 12
It lays, the threaded hole corresponding to limiting slot 19 is offered on movable plate 11.In the present embodiment, realized by spiro connecting piece 18 to activity
The limit of plate 11 avoids sliding panel 12 that the offset on 14 length direction of sliding groove occurs and leads to the sliding in adjacent activities component
The technical issues of plate 12 occurs dislocation and cannot achieve closing first through hole 29.
In the present invention, the stiffener 39 (as shown in Figure 7) for being radially provided with a plurality of radial arrangement of top filter screen 7,
The first end of stiffener 39 is connected to first sleeve 10, and the second end of stiffener 39 is connected to middle part body 8；Reinforced by laying
Item 39 improves the structural strength of top filter screen.
In the present invention, the axial direction of first sleeve 10, the axial direction of first through hole 29, the axial direction of first rotating shaft 23 are conllinear.
A kind of beneficial effect of axial-flow pump with long service life of the present invention includes:
1. realizing in axial-flow pump starting effect and being carried out to water plant or rubbish by installing blade in the bottom end of first rotating shaft
Cutting, avoid blocking water inlet pipe, by water inlet pipe lay filtration net cover can realize the recycling to water plant and rubbish, avoid into
Enter and be wrapped in axial-flow pump ontology on rotation axis, guide vane or impeller, influences the normal work of axial-flow pump, extend axial-flow pump
Service life.
2. by being equipped with torsional spring between movable plate and the lower tie plate and being set between movable plate and sliding panel
Set compressed spring, it is ensured that when axial-flow pump is shut down, movable plate restores initial position, sliding panel under the action of torsional spring reset force
The outer wall of first sleeve is fitted under the action of compressed spring, realizes the closing to first through hole, filtration net cover is avoided to collect
Water plant or rubbish fall.
3. may be implemented using the first gland, the second gland, third capping machine sphere structure in the present invention to first turn
The precise positioning (including axially position and radial positioning) of axis.
4. the structure of axial-flow pump is simple, there is well adapting to property and longer service life.
The above is only presently preferred embodiments of the present invention, not do limitation in any form to the present invention, although this
Invention has been disclosed in a preferred embodiment above, and however, it is not intended to limit the invention, any person skilled in the art,
In the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make a little change or are modified to
With the equivalent embodiment of variation, but anything that does not depart from the technical scheme of the invention content, according to the technical essence of the invention to
Any simple modification, equivalent change and modification made by upper embodiment, all of which are still within the scope of the technical scheme of the invention.
It should be noted that this specification structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate
The bright revealed content of book is not intended to limit the invention enforceable limit so that those skilled in the art understands and reads
Fixed condition, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size, not
It influences still fall in disclosed technology contents under the effect of present invention can be generated and the purpose that can reach
In the range of capable of covering.
Claims (7)
1. a kind of axial-flow pump with long service life, the axial-flow pump ontology including being equipped with straight tube end and bend pipe end, the straight tube end
It is axially provided with rotation axis, the rotation axis upper end and axial-flow pump ontology are rotatablely connected and stretch out in the outside of axial-flow pump ontology,
The rotation axis lower end is connected with guide vane and impeller in turn from top to bottom, it is characterised in that: the connection of straight tube end lower end
There is water inlet pipe, the inside of the water inlet pipe is equipped with the filtration net cover of inner hollow, and the filtration net cover includes sequentially connected
Top filter screen, middle part body and lower tie plate, the axial direction of the filtration net cover are provided with first sleeve, and the lower part is solid
First through hole is offered in the middle part of fixed board, the bottom of the first sleeve wears and extend the first through hole, and described first is logical
Multiple movable components for being used to close the first through hole are provided in hole, the movable component includes sliding panel and is articulated with institute
The movable plate at lower tie plate edge is stated, the sliding panel is slidably connected to the one of the close first sleeve of the movable plate
End, is provided with elastomer between the sliding panel and movable plate, for the glide direction along the sliding panel to the sliding panel
Apply the active force far from the movable plate, limiting device is additionally provided between the sliding panel and the movable plate, it is multiple described
The edge matches of the movable plate in movable component in the edge of the first through hole, the sliding panel close to described first
One end of casing offers the arc groove to match with the first sleeve shape, the movable plate and the lower tie plate it
Between be equipped with torsional spring, to form an entirety for closing the first through hole for being closed multiple movable components, described first
The bottom of casing is connected to the inner wall of the water inlet pipe by more brackets, is rotatably equipped with first turn in the first sleeve
Axis, the first rotating shaft include the exposed junction for exposing to the bottom end of the first sleeve, and the circumferential direction of the exposed junction is uniformly distributed
There are multiple blades, along the axially inclined laying of the first rotating shaft, the blade of the blade is arranged the blade downward.
2. axial-flow pump with long service life according to claim 1, it is characterised in that: the upper surface of the movable plate is equipped with
Fixing seat is installed with the second casing on the lower tie plate, is rotatably equipped with the second shaft in the fixing seat, and described second
The end of shaft is rotatably inserted in second casing, and the torsional spring is socketed in second shaft, the torsional spring
First end be support on the movable plate, the second end of the torsional spring is support on the lower tie plate.
3. axial-flow pump with long service life according to claim 1, it is characterised in that: distinguish at the both ends of the first sleeve
The annular groove for placing bearing is formed, the first rotating shaft is rotatablely installed the institute in the first sleeve by the bearing
The first end for stating first rotating shaft is formed with the shaft shoulder, and a bearing is laid between the shaft shoulder and the annular groove, the shaft shoulder
Bottom end fits in the inner ring end face of corresponding bearing, and the upper surface of the shaft shoulder offers hemispheric lower arc groove, under described
The sphere to match is placed in arc groove, the top of the shaft shoulder is connected with the first gland, offers on first gland
It is matched with the sphere and radius is less than the upper cular arc groove of the radius of sphericity, the top of the sphere passes through and exposes to institute
State cular arc groove, the first end end face corresponding to the shaft shoulder of the first sleeve is connected with the second gland, and described second
The lower end surface of gland is formed with the arc groove for matching the sphere top, and the top of the sphere is set in the arc groove simultaneously
With the slot bottom clearance fit of the arc groove, it is provided with first seal between second gland and first sleeve, described
The bottom end of sleeve is connected with third gland, and another bearing is laid between the third gland and the first sleeve, described
Third gland contact is provided with the second sealing in the cycle surface of another bearing, the third gland and first sleeve lower end surface
Part, offers the third through-hole worn for the first rotating shaft on the third gland, the third through-hole and first turn described
Third sealing element is equipped between axis.
4. axial-flow pump with long service life according to claim 3, it is characterised in that: the sphere and the upper circular arc are logical
There is gap between slot and the lower arc groove, lubricant grease is coated in the gap, is set between the upper cular arc groove and sphere
There is the 4th sealing element.
5. axial-flow pump with long service life according to claim 1, it is characterised in that: the radial direction of the top filter screen is set
There is a stiffener of a plurality of radial arrangement, the first end of the stiffener is connected to first sleeve, and the second of the stiffener
End is connected to the middle part body.
6. axial-flow pump with long service life according to claim 1, it is characterised in that: the movable plate close to described the
One end of sleeve, which is offered, slides the sliding groove set for the sliding panel, is laid on the length direction of the slot bottom of the sliding groove
Multiple positioning columns, offer the pilot hole of the opening direction setting along the sliding groove on the positioning column, on the sliding panel
Equipped with the guide post for being directed at and being matched with the pilot hole, the elastomer is compressed spring, the first end of the compressed spring
It is socketed on the positioning column, the second end of the compressed spring is socketed on the guide post.
7. axial-flow pump with long service life according to claim 6, it is characterised in that: the limiting device includes being opened in
It threaded hole on the movable plate, the limiting slot being opened on the sliding panel and is bolted in the threaded hole and protrudes into described
Spiro connecting piece in limiting slot, the limiting slot are laid along the glide direction of the sliding panel, offer correspondence on the movable plate
In the threaded hole of the limiting slot.
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| CN201910441549.7A CN110107507B (en) | 2019-05-24 | 2019-05-24 | Axial flow pump with long service life |
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| CN201910441549.7A CN110107507B (en) | 2019-05-24 | 2019-05-24 | Axial flow pump with long service life |
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| CN110107507A true CN110107507A (en) | 2019-08-09 |
| CN110107507B CN110107507B (en) | 2023-12-01 |
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| CN110107507B (en) | 2023-12-01 |
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