CN108869398A - A kind of wear-resisting pump housing and preparation method thereof - Google Patents
A kind of wear-resisting pump housing and preparation method thereof Download PDFInfo
- Publication number
- CN108869398A CN108869398A CN201810817783.0A CN201810817783A CN108869398A CN 108869398 A CN108869398 A CN 108869398A CN 201810817783 A CN201810817783 A CN 201810817783A CN 108869398 A CN108869398 A CN 108869398A
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- China
- Prior art keywords
- pump
- pump cover
- liner
- lid
- wear
- Prior art date
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- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 70
- 238000005299 abrasion Methods 0.000 claims abstract description 59
- 239000002131 composite material Substances 0.000 claims abstract description 44
- 239000000203 mixture Substances 0.000 claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 claims abstract description 31
- 239000007767 bonding agent Substances 0.000 claims abstract description 22
- 238000005266 casting Methods 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 40
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 14
- 230000006837 decompression Effects 0.000 claims description 12
- 230000008034 disappearance Effects 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 9
- 239000000919 ceramic Substances 0.000 claims description 8
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 7
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 7
- 239000002075 main ingredient Substances 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 6
- 229920005989 resin Polymers 0.000 claims description 6
- 239000011347 resin Substances 0.000 claims description 6
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- 239000010431 corundum Substances 0.000 claims description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 4
- 239000010432 diamond Substances 0.000 claims description 4
- 239000002223 garnet Substances 0.000 claims description 4
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 4
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 125000006841 cyclic skeleton Chemical group 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 14
- 230000006872 improvement Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229920006387 Vinylite Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- NNSIWZRTNZEWMS-UHFFFAOYSA-N cobalt titanium Chemical compound [Ti].[Co] NNSIWZRTNZEWMS-UHFFFAOYSA-N 0.000 description 1
- JPNWDVUTVSTKMV-UHFFFAOYSA-N cobalt tungsten Chemical compound [Co].[W] JPNWDVUTVSTKMV-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005514 two-phase flow Effects 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4286—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps inside lining, e.g. rubber
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of wear-resisting pump housings and preparation method thereof, the wear-resisting pump housing includes pump case and pump cover, pump case includes shell and liner, shell includes front casing and rear casing, shell is equipped with discharge opening, front casing is equipped with feed inlet, the split type structure that liner is an integral structure or is bonded to each other by bonding agent;Pump cover includes pump cover skeleton and lid, and the edge junction of lid and liner is equipped with the enclosed annular space surrounded by the two side wall, is equipped with Gask-O-Seal in the enclosed annular space.Method includes that shell and mold are fixed in die index, and in the casting space for then forming the mixture injection mold and shell that form composite abrasion resistance material A, mixture hardens and forms liner.Wear-resisting pump housing provided by the invention and preparation method thereof, is conducive to the enlargement and mass production of the pump housing, and can mention reliability and the service life of the pump housing.
Description
Technical field
The present invention relates to rotary motive power pumping unit fields more particularly to a kind of wear-resisting pump housing and preparation method thereof.
Background technique
In the industries such as ore dressing and smelting, some abrasive solid-liquid two-phase flows often are conveyed with centrifugal pump, this is often
Select Pulp pump.Common abrasion resisting pump often uses Cr26, the manufacture of the antifriction alloys such as Cr15Mo3, the pump of these material antifriction alloys manufacture
It is difficult to meet requirement under many operating conditions.
Better wearability can be obtained using composite abrasion resistance material, these composite abrasion resistance materials mainly by abrasion resistant particles and
Bonding agent composition, the material of the most common abrasion resistant particles are the composition such as corundum, silicon carbide, zirconium oxide, garnet, silicon nitride, knot
Mixture is usually resin, such as phenolic resin.The abrasion resisting pump flow passage part service life of this kind of composite material manufacture is in many use conditions
Under can achieve 3 times of Cr26 or more, now start to be applied to manufacture wear-resisting pump.
Chinese patent literature CN103233907A discloses a kind of abrasion resisting pump of the present inventor's proposition, as shown in figure 17,
The pump housing is made of pump case and two part of pump cover, and pump case 00' is manufactured by the compound resistance to material of the metal shell 001 ' of entirety and one
Integral lining 002' composition, pump cover is made of lid 1092 ' and lid skeleton 1091 ', and the structure of this pump housing is simple, reliability
Height, but its manufacturing process is difficult, reason first is that mold is difficult to be put into metal shell 001', reason second is that mold in liner
It is difficult to take out after 002' forming, so this structure is only used for manufacture pony pump, when manufacturing biggish pump, liner 002 ' is only
Offhand can be used, it is difficult to control cost and quality, this makes its application be very limited.To solve this problem,
CN107762977A, CN105201914A, CN105402139A, CN205423325U provide the present inventor proposition four kinds it is resistance to
The pump housing is ground, specific structure is as shown in Figure 15, Figure 16, and the pump housing is by perpendicular to main-shaft axis and by the A'-A' plane of discharge opening
It is split into the preceding pump housing and rear pump housing two parts;The preceding pump housing is made of front casing 101 ' and preceding liner 1031 ', and the rear pump housing is by rear casing
102 ' form with rear liner 1032 ', and the same of A'-A' plane is arranged in suction inlet 111 ' and preceding liner 1031 ', front casing 101 '
The other side of A'-A' plane is arranged in side, rear liner 1032 ' and rear casing 102 ';Preceding liner 1031 ' and rear liner 1032 '
Main material is composite abrasion resistance material, and the main ingredient of complex abrasion-proof material is abrasion resistant particles and resinoid bond, front casing 101 '
Material with rear casing 102 ' is metal, and A'-A' plane is provided with gasket 108', is compressed by the first bolt 107 ' of fastening,
To realize the sealing of A'-A' plane.The assembly of mold and the dismounting of mold are asked when this structure preferably solves pump housing manufacture
Topic.
But in practice, it has been found that the wear-resisting pump housing of above structure has the following defects:One is sealing reliability is poor, especially
It is that leakage is easily rushed down from gasket when the operating pressure of pump is higher, the second is since gasket can only be soft using rubber etc.
Property material manufacture, and the wearability of this type flexible material is significantly lower than composite abrasion resistance material, thus its service life be also significantly less than it is multiple
Wear-resistant material is closed, is handled not in time after gasket abrasion, it is also possible to lead to the metals such as front casing 101' or rear casing 102'
Parts damages, this causes gasket to become a high fault point.
In conclusion in terms of there is technique, service life or reliability in the prior art.
Summary of the invention
The object of the present invention is to provide a kind of wear-resisting pump housings and preparation method thereof, are conducive to enlargement and the mass of the pump housing
Production, and reliability and the service life of the pump housing can be mentioned.
To achieve the above object, the present invention provides a kind of wear-resisting pump housing, and including the pump case and pump cover being interlocked, pump case includes
Be bonded integral shell and liner, shell is metal material, including front casing and rear casing, discharge opening setting in front casing and
Between rear casing, front casing is equipped with feed inlet, and the liner is an integral structure or for two seal faces positioned opposite
The split type structure being bonded to each other by bonding agent;Front casing and rear casing are also by the first bolt fastening or by being welded into one
Body, pump cover include the pump cover skeleton and lid of metal material, are equipped at pump cover skeleton edges perpendicular to the flat of pump housing main-shaft axis
Face, rear casing are equipped with the end face perpendicular to pump housing main-shaft axis, and pump cover is pressed on rear casing, the plane on pump cover skeleton with
End face fitting on rear casing, lid and liner surround a closed annular space, are equipped with annular in the enclosed annular space
Gasket.
As a further improvement of the present invention, the inner cavity of the wear-resisting pump housing is the lid of wearing composite material A by material
Body and liner surround, and the main ingredient of the wearing composite material A is abrasion resistant particles and resin, the abrasion resistant particles it is main at
Part includes one of silicon carbide, corundum, garnet, silicon nitride, zirconium oxide or any combination thereof.
As a further improvement of the present invention, the liner of the split type structure includes the two seal face described in
The preceding liner and rear liner that bonding agent is bonded to each other, surround the enclosed annular space between the lid and rear liner.
As a further improvement of the present invention, including pump cover seat, pump cover are arranged between pump cover seat and rear casing, pump cover
Pump cover is pressed on rear casing by seat.
As a further improvement of the present invention, it between pump cover seat and pump cover, is provided with for placing decompression lid or machine
The space of tool seal box is provided with the planar annular towards pump cover seat on lid, and the outer profile of planar annular is rounded, described
The diameter of planar annular is greater than the internal diameter that the axis projection of decompression lid or the sealing ring on mechanical seal case is arranged in.
As a further improvement of the present invention, the pump cover skeleton includes the cyclic skeleton being exposed to outside lid and buries
Intracorporal disappearance skeleton is being covered, disappearance skeleton is equipped with multiple hollow holes, and the planar annular on lid is located at pump cover skeleton
On cyclic skeleton on the inside of.
As a further improvement of the present invention, wear plate, wear plate are provided in the wetted surfaces of liner or lid
Material be potsherd, hard metal tip or diamond composition.
As a further improvement of the present invention, lid includes the abrasion proof ceramic wafer of at least one annular, and lid is glued
Agent is bonded on pump cover skeleton.
To achieve the above object, the present invention also provides the production method of two kinds of wear-resisting pump housings, first method includes following
Step:
1) disposable tool is manufactured;
2) rear casing and disposable tool, third die index are assembled;
3) front casing and rear casing are fastenedly connected by front casing assembly on rear casing;
4) third between the mixture injection disposable tool of composite abrasion resistance material A and front casing, rear casing will be formed
Casting space;Air is discharged;Mixture is set to harden and be formed in integral structure by the curing condition of composite abrasion resistance material A
Lining;
5) third die index is split out;
6) disposable tool is destroyed, and the defragmentation of disposable tool is clean;
7) pump cover skeleton is put into the mold of manufacture pump cover, the mixture of composite abrasion resistance material A is added, air is discharged,
Harden mixture;
8) it removes the mold of manufacture pump cover and obtains pump cover.
The production method of second of wear-resisting pump housing, includes the following steps:
1) it is positioned by front casing or with front pump shell mold and the assembly of front pump shell die index, composite abrasion resistance material will be formed
The first casting space between the mixture injection front pump shell mold and front casing of A;Air is discharged;By composite abrasion resistance material A's
Curing condition hardens mixture and forms the preceding pump housing;
2) it is positioned by rear casing or with rear pump shell mold and the assembly of rear pump shell die index, composite abrasion resistance material will be formed
The second casting space between the mixture injection rear pump shell mold and rear casing of A;Air is discharged;By composite abrasion resistance material A's
Curing condition hardens mixture, and the pump housing after formation;
3) front pump shell mold and front pump shell die index are split out;
4) rear pump shell mold and rear pump shell die index are split out;
5) bonding agent is prepared by the proportion of bonding agent, is tuned into paste, by one of them close of the preceding pump housing or the rear pump housing
Sealing end is horizontal positioned upwardly, and the bonding agent paste is smeared on the faying face;
6) the seal face downward horizontal of another in the preceding pump housing or the rear pump housing is lifted, is fastened on and has been put after centering
Set bonding agent preceding liner or it is rear in lining, squeeze out extra paste bonding agent;
7) cured adhesive, after waiting bonding agents fully hardened, preceding liner and rear liner is glued can not be split at one
It is whole;
8) front casing and rear casing are fastenedly connected;
9) pump cover skeleton is put into the mold of manufacture pump cover, the mixture of composite abrasion resistance material A is added, air is discharged,
Harden mixture;
10) it removes the mold of manufacture pump cover and obtains pump cover.
Beneficial effect
Compared with prior art, the advantages of wear-resisting pump housing and preparation method thereof of the invention, is:
1, pump case includes the liner of metal shell and composite abrasion resistance material manufacture, and this structure not only guarantees that pump case has preferably
Mechanical strength, it is also ensured that flow-passing surface has good wearability;
2, metal shell is made of the front casing and rear casing manufactured respectively, and the seal face of front casing and rear casing passes through
This structure of discharge opening is convenient for the assembly and positioning of mold, easy to implement in technique;
3, liner be the entirety that can not be split or preceding liner and rear liner it is glued can not be split at one it is whole
Body, both structures can solve CN107762977A, CN105201914A, CN105402139A, CN205423325U and deposit
The resistance to pressure difference of flexible gasket and wear-resisting property difference problem;
4, the purpose of pump cover is arranged is to provide condition for the dismounting of impeller, and pump cover is made of pump cover skeleton and lid, lid
Material be composite abrasion resistance material, this structure not only can guarantee the intensity of pump cover, also can guarantee its wearability;
5, the sealing between pump cover and pump case is realized generally by gasket, but the wearability of gasket is poor, sealing
Pad cannot directly be washed away by fluid, therefore, the closing that both lid and liner edge side wall surround is arranged in gasket
In annular space, sealing can be made to be protected and obtain longer service life in this way;Obviously, gasket quilt in the annular space
Compared to the radially compressed dismounting for being conducive to pump cover and sealing reliability is improved along major axes orientation compression, but gasket must be made
For decrement in suitable range, gasket decrement is too big, not only will lead to gasket damage, it is also possible to lead to liner or lid
Damage, gasket decrement is too small, and can leak;The end of one vertical pump housing main-shaft axis is set on rear casing
Face is arranged a plane in the corresponding position of pump cover skeleton, by pump cover bolt presses on the end face, only needs when processing in this way
Control the size of the annular space, be just good at controlling the decrement of gasket, to realize reliable sealing, prevent liner or
Lid is subject to crushing;
6, two functions may be implemented in pump cover seat, one is pump cover is pressed on rear casing, to realize sealing, the second is
The pump housing and parts of bearings are connected;
7, when using sub-impeller seal or mechanical seal, decompression lid or mechanical seal case need the engagement in itself and pump cover
Sealing ring is set on face, to prevent sealing ring from rushing down leakage, needs to be arranged one on pump cover and sealing ring is contacted and compressed close
The sealing plane of seal, it is simplest that sealing plane, which is arranged on skeleton from technique, and cost is also minimum, but metal material
Skeleton wear-resisting and rotproofness it is poor, easily lead in this way metallic framework occur abrasion and damage;If sealing plane is simply set
It sets on the lid of complex abrasion-proof material A, can be damaged because the intensity of lid is insufficient;Sealing plane is arranged wear-resisting
In composite A, and justify the outer profile of sealing plane, and keeps the outer diameter of the circle interior greater than the axis projection of sealing ring
Diameter, while disappearance skeleton is set in the axis projection position of sealing ring, the disappearance skeleton and pump cover carcasing at an entirety,
And coated by the composite abrasion resistance material of pump cover body, such pump cover skeleton and disappearance skeleton just do not reach fluid, while pump cover body
The relatively strong pressure on sealing ring can also be born to be applied to, to guarantee reliability and the service life of pump cover;
8, disappearance skeleton is equipped with multiple hollow holes, can be further improved the intensity of pump cover, prevents lid from damaging;
9, it since resistance of the composite abrasion resistance material A to pellet big in medium is poor, is impacted to improve the pump housing to bulky grain
Wear plate can be arranged in the wetted surfaces of preceding liner or lid in the resistivity of abrasion, and potsherd, hard can be used in wear plate
The impact resistances such as alloy sheet or diamond composition and the preferable material of wearability.
Through the following description and in conjunction with the attached drawings, the present invention will become more fully apparent, these attached drawings are used to explain the present invention
Embodiment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the cross-sectional view of the embodiment of the present invention 1;
Fig. 2 is partial enlarged view of the Fig. 1 at B;
Fig. 3 is partial enlarged view of the Fig. 1 at C;
Fig. 4 is the cross-sectional view of pump cover in the embodiment of the present invention 1;
Fig. 5 is the perspective view of pump cover skeleton in the embodiment of the present invention 1;
Fig. 6 is the perspective view after front casing and preceding liner process in the embodiment of the present invention 1;
Fig. 7 is the schematic diagram of liner before processing in the embodiment of the present invention 1;
Fig. 8 is the schematic diagram of liner after processing in the embodiment of the present invention 1;
Fig. 9 is the process schematic representation for being bonded together interior preceding lining and rear liner with bonding agent in the embodiment of the present invention 1;
Figure 10 is the cross-sectional view of the embodiment of the present invention 2;
Figure 11 is the perspective view of 2 front casing of the embodiment of the present invention;
Figure 12 is the process schematic representation that the embodiment of the present invention 2 processes liner;
Figure 13 is the cross-sectional view of the embodiment of the present invention 3;
Figure 14 is the cross-sectional view of 4 pump cover of the embodiment of the present invention;
Figure 15 is a kind of wear-resisting pump housing cross-sectional view disclosed in CN107762977A;
Figure 16 is partial enlarged view of the Figure 15 at B ';
Figure 17 is a kind of schematic diagram of the wear-resisting pump housing disclosed in CN103233907A.
Specific embodiment
The embodiment of the present invention is described referring now to the drawings.
Embodiment 1
A specific embodiment of the invention is as shown in Figures 1 to 9, a kind of wear-resisting pump housing, including pump case and pump cover, pump case packet
Include the liner 103 of metal shell and composite abrasion resistance material A manufacture, metal shell includes the front casing 101 that manufactures respectively and rear outer
Shell 102.The opposite seal face of both front casing 101 and rear casing 102 is located on the faying face A-A in Fig. 1.Front casing 101
Discharge opening 110 is passed through with the faying face A-A of rear casing 102.Liner 103 is made of preceding liner 1031 and rear liner 1032, preceding interior
The opposite seal face of both lining 1031 and rear liner 1032 is located on the faying face A-A in Fig. 1.Preceding liner 1031 and rear liner
1032 are bonded the entirety that can not be split at one at glued dose 104 of A-A faying face, front casing 101 by with rear casing 102 by the
The fastening of one bolt 107 passes through integrally welded;Pump cover 109 is made of the pump cover skeleton 1091 and lid 1092 of metal material,
The material of lid 1092 is composite abrasion resistance material, and 111 be feed inlet.The preceding pump housing includes front casing 101 and preceding liner 1031, rear pump
Body includes rear casing 102 and rear liner 1032.
The main ingredient of wearing composite material A is 85% silicon-carbide particle (weight) and 15% phenolic resin in the present embodiment
(weight).
1091 edge of pump cover skeleton is equipped with the plane perpendicular to pump housing main-shaft axis towards the side of rear casing 102
1098, the end face 1021 perpendicular to pump housing main-shaft axis, pump cover are equipped with towards the side of pump cover skeleton 1091 on rear casing 102
109 by third bolt 116 by being pressed on rear casing 102, in the plane 1098 on pump cover skeleton 1091 and rear casing 102
End face 1021 be bonded.Plane 1098 and end face 1021 are annular in shape.
The edge junction of lid 1092 and liner 103 is equipped with the enclosed annular space surrounded by the two side wall, the closing
Gask-O-Seal 117 is equipped in annular space.The outside dimension of Gask-O-Seal 117 is no more than the ring-shaped flat on pump cover skeleton 1091
The Internal periphery in face 1098.As shown in Figure 1, Figure 3, in the present embodiment, between pump cover 109 and rear casing 102, it is provided with placement
The enclosed annular space of sealing ring or Gask-O-Seal 117, it is wear-resisting compound for surrounding the material on the surface of the enclosed annular space
Materials A, as shown in figure 3, the internal diameter of the annular space is a, outer diameter b, wherein a is the straight of the axis being arranged on lid 1092
Diameter, b are the internal diameter in the hole being arranged on rear liner 1032, and the inner surface of the enclosed annular space is axis surface shown in a, institute
State the outer surface of enclosed annular space, hole surface shown in as b, such as Fig. 3, it is clear that the inner surface of closed ring sky and one
End face is arranged on lid 1092, and the outer surface of enclosed annular space and another end face are arranged on rear liner 1032, this
Structure is easy to the assembly and dismounting of pump cover 109, it is also ensured that sealing effect, while protecting sealing ring or Gask-O-Seal 117
It is allowed to be not easy to be worn.
In embodiment 1 as shown in Figure 1, Figure 4, Figure 5,119 material of pump cover seat is cast iron, and pump cover 109 is arranged in pump cover seat
Between 119 and rear casing 102, pump cover seat 119 is connected by third bolt 116 and rear casing 102, and pump cover 109 is pressed on
On rear casing 102, pump cover seat 119 can be fixed on bearing body by bolt.
When pump is provided with decompression lid or mechanical seal case 112, need to be arranged on pump cover 109 compression sealing ring 115
The outer profile of plane 1094, plane 1094 is circle, is arranged on the composite abrasion resistance material A of lid 1092, has a diameter larger than close
The internal diameter of the axis projection of seal 115 is provided with disappearance skeleton 1093, the disappearance bone in the axis projection position of sealing ring 115
Frame 1093 and pump cover skeleton 1091 pass through welding production into an entirety, disappear the complex abrasion-proof material of 1093 coverd part 1092 of skeleton
Material cladding, such pump cover 109 can bear the pressure being applied on sealing ring 115, while skeleton 1091 will not be by fluid
Abrasion or corrosion.
In embodiment 1 as shown in Figure 1, Figure 4, Figure 5, pump cover skeleton 1092 uses welding structure, and forms several hollow outs
Hole 1096 is provided with several threaded holes 1095 on pump cover skeleton 1092, is pressed on pump cover 109 by the second bolt 113 and subtracts
On gland or mechanical seal case 112, to realize sealing between the two below.
In embodiment 1 as shown in Figure 1, Figure 4, Figure 5, the plane 1098 of main-shaft axis is provided perpendicular on pump cover 109,
Pump cover 109 is pressed on rear casing 102 by the second bolt 116, be arranged in plane 1098 and rear casing 102 perpendicular to spindle shaft
The plane 1021 of line fastens, and setting pump cover 109 so not only can suitably force sealing ring 117 tightly, while can incite somebody to action
With suitable decrement compression, this structure can be realized simultaneously above-mentioned sealing ring 115 on decompression lid or mechanical seal case 112
The reliability sealed at two.In Fig. 7, front pump shell shown in Fig. 8, rear pump shell schematic diagram of fabrication technology, 122 He of front pump shell mold
Metal die can be used in rear pump shell mold 124, and front pump shell die index 125 and rear pump shell die index 126 are also using gold
Belong to material, such mold there can be the very long service life.After mold assembles, first casting space 114 or the just will form
The mixture for forming composite abrasion resistance material A is uniformly mixed by two casting spaces 120, injects the first casting space from arrow direction
114 or second in casting space 120, forms liner by the curing condition hardening composite abrasion resistance material of composite abrasion resistance material A
1031 or rear liner 1032, during hardening, front casing 101 and preceding liner 1031 are by the bonding in composite abrasion resistance material A
Agent bonding become the entirety that can not be split, rear casing 102 and liner 1032 by the resin bonding in composite abrasion resistance material A at
Another entirety that can not be split.
It is in Fig. 9, the A-A planar horizontal of front pump shell is upward, bonding agent 104 is smeared on A-A faying face, bonding agent is
Polyamide, to reinforce wearability, can be added 80% in bonding agent 104 when the gap between the joint surface A-A is larger
The particles such as corundum, garnet, silicon nitride substitution can also be added in the silicon-carbide particle of (weight) 100 mesh.
The simple shape of pump cover 109 can be manufactured according to a conventional method, because compiling width reason, be no longer described in detail.
Embodiment 2
A specific embodiment of the invention is as shown in Figure 10 to Figure 12, and pump case includes that metal shell and one are integrally-built
The liner 103 of composite abrasion resistance material A manufacture, metal shell includes the front casing 101 and rear casing 102 manufactured respectively, front casing
101 and rear casing 102 faying face A-A pass through discharge opening 110;Liner 103, front casing 101 and rear casing 102 are glued at one
A entirety that can not be split, front casing 101 and rear casing 102 are fastened by the first bolt 107 or by integrally welded;Pump cover
109 are made of the pump cover skeleton 1091 and lid 1092 of metal material, and the material of lid 1092 is composite abrasion resistance material, and 111 are
Feed inlet.
In technique diagram shown in Figure 12, gypsum or resin sand manufacture is can be used in disposable tool 121, it is consolidated with glue
It is scheduled in third die index 118, then successively assembles rear casing 102 and front casing 101, by front casing 101 and rear casing 102
With bolt fastening together (if rear casing 102, front casing 101 use cast steel, the two can also be welded into one it is whole
Body), it is multiple to the injection of third casting space 130 between disposable tool 121 and front casing 101, rear casing 102 in the direction of the arrow
The mixture of wear-resistant material A is closed, air is discharged, after waiting composite abrasion resistance materials A to harden, that is, forms the liner 103 of an entirety, it is multiple
The resin in wear-resistant material A is closed in hardening process, liner 103, front casing 101, rear casing 102 are bonded can not as one
The entirety of fractionation.
The main ingredient of composite abrasion resistance material A is 83% corundum in granules (weight) and 17% vinylite in the present embodiment
(weight).
Embodiment 3
In the embodiment 3 shown in Figure 13, the wetted surfaces of liner 103 are provided with wear plate 1033, wear plate can be adopted
With the potsherd of the materials such as silicon carbide, the product of the materials such as hard alloy or diamond such as tungsten-cobalt, titanium cobalt can also be used certainly, this
For sample when containing bulky grain in medium, the pump housing can obtain longer service life.
Wear plate 1033 can be arranged by following technique:
1) disposable tool surface is applied into one layer of bonding agent, wear plate 1033 is cemented on disposable tool.
2) rear casing 102, die index, the disposable tool for being bonded wear plate 1033 are successively assembled into fixation;
3) front casing 101 and rear casing 102 are bolted together or are welded as a whole;
4) into the gap between disposable tool and front casing 101, rear casing 102, injection forms the mixed of wear-resistant material A
Material is closed, air is discharged.
5) mixture is hardened, after the completion of to be hardened, wear plate 1033 is and rear liner 1032, front pump shell 101, rear pump shell
102 bondings become the entirety that can not be split.
6) die index is removed;
7) disposable tool is destroyed;Clean out the fragment of disposable tool.
In the present embodiment 3, the material of disposable tool is resin-sand.
Embodiment 4
As shown in figure 14, difference from example 1 is that, lid 1092 is by an annular abrasion proof ceramic wafer 1034
It constitutes, 1092 glued doses of lid are bonded on pump cover skeleton 1091.The material of annular abrasion proof ceramic wafer 1034 in the present embodiment
Matter is silicon carbide, and aluminium oxide, silicon nitride, zirconium oxide etc. can also be used;Decompression lid or mechanical seal case can be set in the present embodiment
112, the axis projection for the sealing ring 115 being arranged on decompression lid or mechanical seal case 112 falls in lid 1092 and pump cover skeleton
1091 junction, the i.e. outer of the axis projection of sealing ring 115 are fallen on pump cover skeleton 1091, the axial direction of sealing ring 115
The interior edge of projection is fallen on lid 1092, and the pressure that sealing ring 115 can in this way applied largely is held by pump cover skeleton 1091
By the sealing ring 115 for preventing annular abrasion proof ceramic wafer 1034 to be arranged on decompression lid or mechanical seal case 112 damages by pressure.
In addition, lid 1092 can also be made of the abrasion proof ceramic wafer 1034 of at least two annulars along the superposition of its center line,
The abrasion proof ceramic wafer 1034 of two neighboring annular mutually bonds, and 1034 thickness of abrasion proof ceramic wafer of each annular can be identical, can also
With difference.
To verify actual effect of the invention, the WT100-390 abrasion resisting pump pump housing assembly that we produce my company is laggard
Row comparison sealing effect test, 3 for participating in comparative test pump with model, wherein the CN107762977A that pump 1 uses discloses skill
The wear-resisting pump housing of art production, is provided with gasket 108;Pump 2 is the wear-resisting pump housing produced using 1 technology of the embodiment of the present invention, interior
Lining is is bonded together after manufacture respectively, pump 3 is the wear-resisting pump housing raw using 2 technology of the embodiment of the present invention, using whole system
The liner made, front casing and rear casing are bolted firm, to 3 pump priming pressure testings, are recorded at its A-A faying face respectively
Pressure and reason when starting to leak, concrete condition are as follows:
Serial number | Start leak pressure (Mpa) | Leakage cause |
Pump 1 | 1.32 | Gasket destroys |
Pump 2 | 3.15 | Pump housing cracking |
Pump 3 | 3.43 | Pump housing cracking |
As can be seen from the above table, it is apparently higher than and is adopted using the voltage endurance capability of the pump 2 of the wear-resisting pump housing of the technology of the present invention, pump 3
With the pump 1 of the prior art.
In the service life that product is manufactured for two kinds of technologies of comparison, above-mentioned 3 pumps are compared in the same pump position in certain dressing plant
Test, records service life and the pump housing source of damage of the pump housing, statistic record such as following table:
Serial number | The pump housing service life (h) | The pump housing source of damage |
Pump 1 | 682 | Gasket damage |
Pump 2 | 2656 | The pump housing is worn out |
Pump 3 | 3122 | The pump housing is worn out |
As can be seen from the above table, the present invention preferably resolves prior art service life short problem.
In conclusion the present invention is compared with the prior art, it is not only easy to implement in technique, and having well solved the prior art can
It is poor by property, service life short problem.
Combining most preferred embodiment above, invention has been described, but the invention is not limited to implementations disclosed above
Example, and various modifications, equivalent combinations according to the essence of the present invention should be covered.
Claims (10)
1. a kind of wear-resisting pump housing, including the pump case being interlocked and pump cover (109), which is characterized in that pump case includes that bonding is integral
Shell and liner (103), the shell is metal material, including front casing (101) and rear casing (102), discharge opening (110)
It is arranged between front casing (101) and rear casing (102), front casing (101) is equipped with feed inlet (111), the liner (103)
It is an integral structure or passes through the split type structure that bonding agent (104) are bonded to each other for two seal faces positioned opposite;Before
Shell (101) and rear casing (102) are also fastened by the first bolt (107) or by integrally welded;Pump cover (109) includes metal
The pump cover skeleton (1091) and lid (1092) of material, pump cover skeleton (1091) edge are equipped with perpendicular to pump housing main-shaft axis
Plane (1098), rear casing (102) are equipped with the end face (1021) perpendicular to pump housing main-shaft axis, and pump cover (109) is pressed in
On rear casing (102), the plane (1098) on pump cover skeleton (1091) is bonded with the end face (1021) on rear casing (102), lid
Body (1092) and liner (103) surround a closed annular space, are equipped with Gask-O-Seal in the enclosed annular space
(117)。
2. a kind of wear-resisting pump housing according to claim 1, which is characterized in that the inner cavity of the wear-resisting pump housing is by material
The lid (1092) and liner (103) of wearing composite material A surrounds, and the main ingredient of the wearing composite material A is wear-resisting
Grain and resin, the main ingredient of the abrasion resistant particles include one of silicon carbide, corundum, garnet, silicon nitride, zirconium oxide or
Any combination thereof.
3. a kind of wear-resisting pump housing according to claim 1, which is characterized in that the liner (103) of the split type structure wraps
It includes the two seal face and passes through preceding liner (1031) and rear liner (1032) that the bonding agent (104) are bonded to each other, the lid
The enclosed annular space is surrounded between body (1092) and rear liner (1032).
4. a kind of wear-resisting pump housing according to claim 1, which is characterized in that including pump cover seat (119), pump cover (109) is set
It sets between pump cover seat (119) and rear casing (102), pump cover (109) is pressed on rear casing (102) by pump cover seat (119).
5. a kind of wear-resisting pump housing according to claim 4, which is characterized in that pump cover seat (119) and pump cover (109) it
Between, it is provided with the space for placing decompression lid or mechanical seal case (112), is provided on lid (1092) towards pump cover seat
(119) planar annular (1094), the outer profile of planar annular (1094) is rounded, and the diameter of the planar annular (1094) is big
In the internal diameter of the axis projection of sealing ring (115) of the setting on decompression lid or mechanical seal case (112).
6. a kind of wear-resisting pump housing according to claim 5, which is characterized in that the pump cover skeleton (1091) includes being exposed to
The cyclic skeleton of lid (1092) outside and the disappearance skeleton (1093) being embedded in lid (1092) are disappeared and are set on skeleton (1093)
Have multiple hollow holes (1096), the planar annular (1094) on lid (1092) is located at the ring-type on pump cover skeleton (1091)
On the inside of skeleton.
7. a kind of wear-resisting pump housing according to claim 4, which is characterized in that pump cover seat (119) and pump cover (109) it
Between, it is provided with the space for placing decompression lid or mechanical seal case (112), the lid (1092) includes at least one annular
Abrasion proof ceramic wafer (1034), glued dose of lid (1092) is bonded on pump cover skeleton (1091), decompression lid or mechanical seal
The outer of the axis projection of sealing ring (115) on case (112) is fallen on pump cover skeleton (1091), the axial direction of sealing ring (115)
The interior edge of projection is fallen on lid (1092).
8. a kind of wear-resisting pump housing according to claim 1, which is characterized in that in the mistake of liner (103) or lid (1092)
It is provided on flow table face wear plate (1033), the material of wear plate (1033) is potsherd, hard metal tip or diamond composition.
9. using a kind of production method of wear-resisting pump housing of integral structure liner (103) according to claim 1, it is characterised in that
Include the following steps:
1) disposable tool (121) are manufactured;
2) rear casing (102) and disposable tool (121), third die index (118) are assembled;
3) front casing (101) is assemblied on rear casing (102), front casing (101) and rear casing (102) is fastenedly connected or is welded
It is connected into an entirety;
4) mixture injection disposable tool (121) and the front casing (101), rear casing (102) of composite abrasion resistance material A will be formed
Between third casting space (130);Air is discharged;Mixture is set to harden and be formed by the curing condition of composite abrasion resistance material A
The liner (103) of integral structure;
5) third die index (118) are split out;
6) disposable tool (121) are destroyed, and the defragmentation of disposable tool (121) is clean;
7) pump cover skeleton (1091) is put into the mold of manufacture pump cover (109), the mixture of composite abrasion resistance material A, row is added
Air out hardens mixture;
8) it removes the mold of manufacture pump cover (109) and obtains pump cover (109).
10. a kind of production method of wear-resisting pump housing according to claim 3, it is characterised in that include the following steps:
1) it positions, will form by front casing (101) or with front pump shell mold (122) and front pump shell die index (125) assembly
The first casting space (114) between mixture injection front pump shell mold (122) of composite abrasion resistance material A and front casing (101);
Air is discharged;Mixture is hardened by the curing condition of composite abrasion resistance material A and forms the preceding pump housing;
2) it positions, will form by rear casing (102) or with rear pump shell mold (124) and rear pump shell die index (126) assembly
The second casting space (120) between mixture injection rear pump shell mold (124) of composite abrasion resistance material A and rear casing (102);
Air is discharged;Harden mixture by the curing condition of composite abrasion resistance material A, and the pump housing after formation;
3) front pump shell mold (122) and front pump shell die index (125) are split out;
4) rear pump shell mold (124) and rear pump shell die index (126) are split out;
5) bonding agent is prepared by the proportion of bonding agent (104), is tuned into paste, by one of them close of the preceding pump housing or the rear pump housing
Sealing end is horizontal positioned upwardly, and the bonding agent paste (104) is smeared on the faying face;
6) the seal face downward horizontal of another in the preceding pump housing or the rear pump housing is lifted, be fastened on after centering placed it is viscous
It connects on the preceding liner (1031) or rear liner (1032) of agent (104), squeezes out extra paste bonding agent (104);
7) cured adhesive (104), after waiting bonding agents (104) fully hardened, preceding liner (1031) and rear liner (1032) are glued
It is connected into the entirety that can not be split;
8) front casing (101) and rear casing (102) are fastenedly connected or the two is welded into an entirety;
9) pump cover skeleton (1091) is put into the mold of manufacture pump cover (109), the mixture of composite abrasion resistance material A, row is added
Air out hardens mixture;
10) it removes the mold of manufacture pump cover and obtains pump cover (109).
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CN201810817783.0A CN108869398A (en) | 2018-07-24 | 2018-07-24 | A kind of wear-resisting pump housing and preparation method thereof |
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WO2021109625A1 (en) * | 2019-12-06 | 2021-06-10 | 广州市拓道新材料科技有限公司 | Ceramic pump body |
CN113062866A (en) * | 2021-03-05 | 2021-07-02 | 三峡大学 | Detachable wear-resistant sand pump and operation method thereof |
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