CN107762977A - 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
- CN107762977A CN107762977A CN201711164969.2A CN201711164969A CN107762977A CN 107762977 A CN107762977 A CN 107762977A CN 201711164969 A CN201711164969 A CN 201711164969A CN 107762977 A CN107762977 A CN 107762977A
- Authority
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- China
- Prior art keywords
- pump housing
- abrasion
- wear
- resisting
- sealer
- Prior art date
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- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000005299 abrasion Methods 0.000 claims abstract description 118
- 239000000463 material Substances 0.000 claims abstract description 54
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 239000000203 mixture Substances 0.000 claims abstract description 34
- 239000002131 composite material Substances 0.000 claims abstract description 29
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 239000011347 resin Substances 0.000 claims abstract description 23
- 239000002245 particle Substances 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 16
- 239000000919 ceramic Substances 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000010431 corundum Substances 0.000 claims description 7
- 229910052593 corundum Inorganic materials 0.000 claims description 7
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 7
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000002223 garnet Substances 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
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000008188 pellet 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 3
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims 1
- 238000012856 packing Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 20
- 238000012545 processing Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000003754 machining Methods 0.000 description 6
- 239000000565 sealant Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000002075 main ingredient Substances 0.000 description 3
- 229920001568 phenolic resin Polymers 0.000 description 3
- 239000005011 phenolic resin Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 241001503485 Mammuthus Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229920006387 Vinylite Polymers 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 230000005514 two-phase flow Effects 0.000 description 1
- 229910052726 zirconium Inorganic materials 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
-
- 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
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials 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
- F04D29/08—Sealings
- F04D29/086—Sealings 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
- F04D29/40—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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/748—Machines or parts thereof not otherwise provided for
- B29L2031/7496—Pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/60—Properties or characteristics given to material by treatment or manufacturing
- F05D2300/603—Composites; e.g. fibre-reinforced
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of wear-resisting pump housing and preparation method thereof, the pump housing includes discharge opening, the preceding pump housing and the rear pump housing；The preceding pump housing includes suction inlet, front casing and preceding liner, and the rear pump housing includes rear casing and rear liner；It is provided with sealing gasket between the preceding pump housing and the rear pump housing, at least one in the preceding pump housing two seal faces relative with the rear pump housing to be provided with abrasion sealer, the material of abrasion sealer is to include the composite abrasion resistance material B of abrasion resistant particles and resin.Preparation method is that composite abrasion resistance material B paste mixture is smeared on the relative one of seal face of both the preceding pump housing or the rear pump housing, and abrasion sealer is formed it into by way of the seal face of the forward and backward pump housing mutually fastens or is fastened using standard slab.Wear-resisting pump housing provided by the invention and preparation method thereof, without mechanical processing difficulty is machined or reduced to sealing plane, the reliability of sealing is improved, manufacturing cost can also be reduced.
Description
Technical field
The present invention relates to rotary motive power pumping unit field, more particularly to a kind of wear-resisting pump housing and preparation method thereof.
Background technology
In the industry such as ore dressing and smelting, often conveying some with centrifugal pump has the solid-liquid two-phase flow of abrasion, and this is often
From Pulp pump.Common abrasion resisting pump often uses the antifriction alloy such as Cr26, Cr15Mo3 to manufacture, the pump of these material antifriction alloys manufacture
It is difficult to meet requirement under many operating modes.
More preferable wearability can be obtained using composite abrasion resistance material, these composite abrasion resistance materials mainly by abrasion resistant particles and
Bonding agent forms, and the material of most common abrasion resistant particles is the composition such as corundum, carborundum, zirconium oxide, garnet, silicon nitride, is tied
Mixture is typically resin, such as phenolic resin.The abrasion resisting pump flow passage part life-span of this kind of composite manufacture is in many use conditions
More than 3 times of Cr26 can be reached down, now start to be applied to manufacture wear-resisting pump.
Chinese patent literature CN105201914A, CN105402139A, CN205423325U provide the present inventor's proposition
Three kinds of wear-resisting pump housings, its concrete structure as shown in Figure 10, Figure 11, Figure 12, the pump housing by perpendicular to main-shaft axis and through discharge
The A-A planes of mouth 110 ' are split into the preceding pump housing 100 ' and rear two parts of the pump housing 101 '；The preceding pump housing 100 ' is by front casing 103 ' with before
Liner 102 ' is formed, and the rear pump housing 101 ' be made up of rear casing 105 ' and rear liner 106 ', suction inlet 111 ' and preceding liner 102 ', preceding
Shell 103 ' is arranged on the same side of A-A planes, and rear liner 106 ' and rear casing 105 ' are arranged on the opposite side of A-A planes；Before
The main material of liner 102 ' and rear liner 106 ' is composite abrasion resistance material A, and complex abrasion-proof material A Main Ingredients and Appearance is abrasion resistant particles
And resinoid bond, the material of front casing 103 ' and rear casing 105 ' is metal, and A-A planes are provided with sealing gasket 108 ', passed through
Fastening bolt 104 ' compresses, to realize the sealing of A-A planes.
Figure 13 is the schematic diagram of the pump housing 100 ' before prior art manufacture, front casing 103 ' and mold 2 ' and lower mould in figure
3 ' positioning after with fastening bolt 104 ' fasten, make front casing 103 ' A-A planes and lower mould 2 ' plane 3 ' be bonded, so before
Cavity 114 ' is formed between shell 103 ' and mold 2 ' and lower mould 3 ', by the compound of abrasion resistant particles and resin at arrow
Inject in cavity 114 ', discharge air, hardened by hardening of resin condition, liner 102 ' before being formed after hardening is wear-resisting
Particle is usually carborundum, corundum, garnet, silicon nitride etc., and resin can use the thermosetting resins such as phenolic resin.The pump housing 101 ' afterwards
Manufacture view it is also similar with the preceding pump housing 100 '.
It was verified that can not be too thick or too thin in the sealing gasket 108 ' that pump housing A-A planes are set, generally it is selected in 1-
More suitable during 4mm, because the material of sealing gasket 108 ' is the flexible materials such as rubber, polyurethane, wearability is poor, sealing gasket
108 ' interior edge can be worn quickly, but it is located at the inner space point of preceding liner 102 ' and rear liner 106 ', due to space
It is narrow and small, washed away mill intensity damage by fluid and be obviously reduced, so that sealing gasket 108 ' obtains longer life-span, such as sealing gasket
108 ' is too thin, easily leaks, if sealing gasket 108 ' is too thick, gap between the preceding pump housing 100 ' and the rear pump housing 101 ' compared with
Greatly, sealing gasket 108 ' is washed away seriously, and its life-span will substantially shorten.
In practice, but particularly when the size of the pump housing is larger, using the sealing gasket usually sealing effectiveness of 1-4mm thickness
Do not reach requirement, it is also ineffective even if the quantity of increase fastening bolt 104 ', easily leaked at sealing.
By looking through, confirmation has 2 kinds of reasons to cause above mentioned problem, and reason one is：Front casing 103 ' or rear casing
105 ' whether cast member or weldments, even if there is the process for eliminating stress, it can send out after the machining operation or in A-A planes
Change shape, before processing because temperature change is larger during liner 102 ' or rear liner 106 ', it is equally possible to can produce change
Shape, so final front casing 103 ' and flatness tolerance of the both parts of rear casing 105 ' in A-A will be overproof, the second is system
The mould 3 ' of liner 102 ' or rear liner 106 ' before making, in use also due to the reason such as difference variation deforms,
Liner 102 ' or rear liner 106 ' are overproof in the flatness tolerance of A-A planes before causing.
Current shell 103 ', rear casing 105 ', preceding liner 102 ', rear liner 106 ' are equal in the flatness tolerance of A-A planes
When in allowed band, the pretightning force of fastening bolt 104 ' is enough to make above-mentioned part to occur elastic deformation, and by flexible material
Sealing gasket 108 ' compresses, it is possible to ensures sealing effectiveness, conversely, will leak.
To solve the above problems, the A- of the pump housing 100 ' or the rear pump housing 101 ' before the method cutting that our trials are machined into
A planes facts have proved that this method has obvious deficiency to improve its flatness, one is due to A-A planes be provided with it is a variety of
Material, composite abrasion resistance material therein, hardness is very high, and universal cutter can not be processed, it is necessary to it could be processed using diamond cutter,
And use the metal material on diamond cutter processing A-A surfaces improper.Therefore, no matter selecting a kind of that cutter to be processed all
It is improper, it is necessary to which two or more cutters could meet to require, this is highly difficult in technique, and efficiency is very low.The second is into
This is higher, and the process of A-A planes is not only time-consuming, and the consumption of cutter is very big, the third is qualification rate bottom, effect is poor, to big
Type workpiece, because the abrasion of cutter is larger, often need tool changing tool could complete process, so easily cause be machined after flatness still
Have compared with high tolerance, sealing effectiveness is poor in use.
In summary, there is the problem of high processing costs, manufacture efficiency are low, using effect is poor in prior art.
The content of the invention
It is an object of the invention to provide a kind of wear-resisting pump housing and preparation method thereof, without being machined to sealing plane
Or mechanical processing difficulty is reduced, the reliability of sealing is improved, manufacturing cost can also be reduced.
To achieve the above object, the present invention provides a kind of wear-resisting pump housing, including discharge opening and the preceding pump housing that mutually fastens with
The pump housing afterwards；The preceding pump housing includes suction inlet, front casing and preceding liner, and the rear pump housing includes rear casing and rear liner；In the preceding pump housing with after
Sealing gasket is provided between the pump housing, at least one be provided with protrudes from its table in the preceding pump housing two seal faces relative with the rear pump housing
The abrasion sealer in face, the abrasion sealer and the preceding pump housing or the engaged agent bonding of the rear pump housing can not be split whole for one
Body, the material of the abrasion sealer are to include the composite abrasion resistance material B of abrasion resistant particles and resin.
As a further improvement on the present invention, bonded on the preceding pump housing or the rear pump housing seal face of one of them
There is the first abrasion sealer.
As the further improvement of the present invention, potsherd, potsherd are provided with the interior edge of first abrasion sealer
Thickness be less than or equal to the first abrasion sealer maximum gauge.
As the further improvement of the present invention, at least one inner surface is provided with both the preceding liner or rear liner
Ceramic layer.
As the further improvement of the present invention, second is provided between the seal face and the sealing gasket of the preceding pump housing
The 3rd abrasion sealer is provided between abrasion sealer, the seal face of the rear pump housing and the sealing gasket.
As the further improvement of the present invention, the weight ratios of the abrasion resistant particles is 50%-95%, including carborundum,
Corundum, silicon nitride, garnet, one kind of zirconium oxide or its combination；The weight ratio of the resin is 5-40%.
The adjusting pad for being used for adjusting its thickness is provided with as the further improvement of the present invention, in the abrasion sealer
Piece, the material of the adjust pad is ceramics, hard alloy, one kind of metal or its combination.
As the further improvement of the present invention, the material of the preceding liner and rear liner is composite abrasion resistance material A, institute
The material for stating front casing and rear casing is metal.
As the further improvement of the present invention, the thickness of the abrasion sealer is 0.3-30mm.
To achieve the above object, the present invention also provides a kind of preparation method of the wear-resisting pump housing, comprises the following steps：
1) by die surface coating release agent, front casing or rear casing are positioned with mould assembling；
2) compound of liner is injected between mould and front casing or rear casing；Discharge air；Make the compound of liner
Hardening；
3) mould is split out, cleans out the releasing agent of two relative seal faces on the preceding pump housing and the rear pump housing；
4) wear-resisting pellet and resin are mixed by composite abrasion resistance material B proportioning, paste mixture is tuned into, by the preceding pump housing
Or the rear pump housing one of them seal face it is horizontal positioned upwards, adjust pad is placed thereon, institute is smeared in the seal face
State paste mixture；
5) the seal face downward horizontal of another in the preceding pump housing or the rear pump housing is lifted, smears and be stripped in its seal face
Agent, it is fastened on the preceding pump housing or the rear pump housing for having placed paste mixture after centering, extrudes unnecessary paste mixture；
6) press hardening of resin condition hardening paste in composite abrasion resistance material B and mix thing, after waiting paste mixture fully hardened
The preceding pump housing above or the rear pump housing are hung out.
Beneficial effect
Compared with prior art, it is the advantages of wear-resisting pump housing of the invention and preparation method thereof：
1st, abrasion sealer is set up at least one in the preceding pump housing two seal faces relative with the rear pump housing, can not
Mechanical processing difficulty is machined or reduced to sealing plane, to improve the reliability of sealing, can also be reduced and is manufactured into
This；
2nd, because abrasion sealer protrudes from front casing or rear casing seal face positioned opposite, wear-resistant seal face is entered
During row machining, avoid the need for processing front casing or the relative seal face of rear casing, because homogenous material is machined
Performance is substantially better than the complex being made up of composite abrasion resistance material and metal, and is easy to be processed using diamond abrasive tool, has
Beneficial to the cost for reducing machining；
3rd, composite abrasion resistance material A and composite abrasion resistance material B composition can be with identical, can also be different, thus can root
Different formulas is selected according to the requirement of technique, and obtains more preferable effect；
If the 4, not inlaying adjust pad in abrasion sealer, the thickness of abrasion sealer depends primarily on compound resistance to
The granularity of the solid particle in material B is ground, the thickness of abrasion sealer is difficult to adjust, and after inlaying adjust pad, it is wear-resisting close
The thickness of sealing depends on the thickness of adjust pad, therefore, wear-resistant seal can be easily adjusted by the method for inlaying pad
The thickness of layer, can so avoid abrasion sealer because of too thin and intensity is insufficient, so that abrasion sealer obtains preferably
Mechanical strength；
5th, inner surface setting at least one in both preceding liner or rear liner is ceramic, can improve anti-thick of the pump housing
Grain impact wear ability, but can further increase the mechanical processing difficulty of the preceding pump housing and rear pump housing opposing seal end face simultaneously, and
Set up between both seal faces and put abrasion sealer and can solve this problem；
6th, potsherd is embedded in the first abrasion sealer interior edge, can not only utilizes potsherd to adjust the first wear-resistant seal
The thickness of layer, the wearability of the first abrasion sealer can also be further improved, it is had the property of preferably anti-coarse granule impact
Energy.
It will be become more fully apparent by following description and with reference to accompanying drawing, the present invention, these accompanying drawings are used to explain the present invention
Embodiment.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the sectional view of the embodiment of the present invention 1；
Fig. 2 is partial enlarged drawings of the Fig. 1 at B；
Fig. 3 is the stereogram of the rear pump housing in the embodiment of the present invention 1；
Fig. 4 is the sectional view of embodiment 2；
Fig. 5 is partial enlarged drawings of the Fig. 4 at C；
Fig. 6 is the stereogram of the rear pump housing in the embodiment of the present invention 2；
Fig. 7 is the sectional view of the embodiment of the present invention 3；
Fig. 8 is partial enlarged drawings of the Fig. 7 at D；
Fig. 9 is the stereogram of the pump housing after the embodiment of the present invention 3；
Figure 10 is a kind of wear-resisting pump housing sectional view disclosed in CN105201914A；
Figure 11 is partial enlarged drawings of the Figure 10 at E；
Figure 12 is a kind of stereogram of the rear pump housing of the wear-resisting pump housing disclosed in CN105201914A；
Figure 13 is the process schematic representation of the pump housing before prior art processing.
Embodiment
Embodiments of the invention are described with reference now to accompanying drawing.
Embodiment 1
The embodiment of the present invention as shown in Figure 1 to Figure 3, with mutual detain by a kind of wear-resisting pump housing, including discharge opening 110
The preceding pump housing 100 and the rear pump housing 101 closed.The preceding pump housing 100 includes suction inlet 111, front casing 103 and preceding liner 102, the rear pump housing
101 include rear casing 105 and rear liner 106；The sealing gasket of flexible material is provided between the preceding pump housing 100 and the rear pump housing 101
108, at least one be provided with protrudes from the wear-resisting of its surface in the preceding pump housing 100 two seal faces relative with the rear pump housing 101
It is the entirety that can not be split that sealant, the abrasion sealer and the preceding pump housing 100 or the rear pump housing 101, which are engaged agent bonding,
The material of the abrasion sealer is to include the composite abrasion resistance material B of abrasion resistant particles and resin.Suction inlet 111 is located at the wear-resisting pump housing
Main shaft on.
In Fig. 1 of the present embodiment, the wear-resisting pump housing is divided into perpendicular to main-shaft axis and by the A-A planes of discharge opening 110
The preceding pump housing 100 and the rear pump housing 101 two parts, sealing gasket 108 are located in A-A planes.The wear-resisting pump housing is compressed by fastening bolt 104
The preceding pump housing 100 and the rear pump housing 101 are sealed with realizing.
In the present embodiment, abrasion sealer is the first abrasion sealer 109, and the preceding pump housing 100 or the rear pump housing 101 are wherein
The first abrasion sealer 109 is bonded with the seal face of one.
The weight ratio of the abrasion resistant particles can be 50%-95%, including carborundum, corundum, silicon nitride, garnet, oxygen
Change one kind or its combination of zirconium；The weight ratio of the resin is 5-40%.
And in the present embodiment, the Main Ingredients and Appearance of the first abrasion sealer 109 is (weight)：36 mesh carborundum 50-70%,
100 mesh carborundum 20-25%, vinylite 15-25%.
The adjust pad for being used for adjusting its thickness is provided with first abrasion sealer 109.
The material of the adjust pad is ceramics, hard alloy, one kind of metal or its combination.
The material of the preceding liner 102 and rear liner 106 is composite abrasion resistance material A, the front casing 103 and rear casing
105 material is metal.Composite abrasion resistance material A and composite abrasion resistance material B composition can be with identical, can also be different.
The Main Ingredients and Appearance of the composite abrasion resistance material of preceding liner 102 and rear liner 106 is (weight)：16 mesh corundum 60-80%,
100 mesh corundum 20-25%, phenolic resin 15-25%.
The thickness of the abrasion sealer is 0.3-30mm.In the present embodiment, the thickness of the first abrasion sealer 109 is about
3mm。
A kind of preparation method of the wear-resisting pump housing, comprises the following steps：
1) by die surface coating release agent, front casing 103 and mould assembling are positioned；The mould of use is included on existing
Mould 2 ' and lower mould 3 '；
2) it is used for the raw material of liner 102 before making by composite abrasion resistance material A proportioning, abrasion resistant particles and resin is mixed equal
It is even, in the cavity formed between compound injection mould and front casing 103；Discharge air；By complex abrasion-proof material A curing condition
Resin in hardenable mixture；
The preceding pump housing 100 completes, and the production method of the rear pump housing 101 is consistent with the production method of the preceding pump housing 100.
3) mould is split out, cleans out the releasing agent of two relative seal faces on the preceding pump housing 100 and the rear pump housing 101；
4) wear-resisting pellet and resin are mixed by composite abrasion resistance material B proportioning, paste mixture is tuned into, by the rear pump housing
101 towards the preceding pump housing 100 seal face it is horizontal positioned upward, adjust pad is placed thereon, the seal face smear institute
State paste mixture；
5) the seal face horizontal lifting down by the preceding pump housing 100 towards the rear pump housing 101, smears in its seal face and is stripped
Agent, it is fastened on the rear pump housing 101 for having placed paste mixture after centering, extrudes unnecessary paste mixture；
6) press hardening of resin condition hardening paste in composite abrasion resistance material B and mix thing, after waiting paste mixture fully hardened
The preceding pump housing 100 above is hung out；The paste mixture solidification for remaining in the rear seal face of the pump housing 101 becomes wear-resisting close
Sealing 109 simultaneously is strongly adhered to turn into an entirety on the rear pump housing 101, it is clear that the surface of the first abrasion sealer 109 be with
What the seal face of the preceding pump housing 100 fitted like a glove.
In the present embodiment, adjust pad uses sheet metal, thickness 2mm.The average thickness of first abrasion sealer 109 is about
3mm.In actual production, the thickness of the first abrasion sealer 109 is relatively reasonable between 0.3-30mm, too thin and too thick be difficult to
The surface of guarantee abrasion sealer 109 is intact and successively opens.
The technique that the present embodiment makes the first abrasion sealer 109 is simple, and eliminates follow-up cutting machine processing, greatly
Reduce cost greatly.But its shortcoming is that the preceding pump housing of completion and the rear pump housing must be matched and could used, it is impossible to is exchanged, therefore, no
Beneficial to production in enormous quantities, on the other hand, if during a damage before occurring in use in the pump housing 100 or the rear pump housing 101, must
Two parts are needed to change simultaneously.
Embodiment 2
As shown in Figures 4 to 6, the difference with embodiment 1 is, abrasion sealer includes the second abrasion sealer
212 and the 3rd abrasion sealer 209.It is wear-resisting that second is provided between the seal face and the sealing gasket 108 of the preceding pump housing 100
Sealant 212, the 3rd abrasion sealer 209 is provided between the seal face and the sealing gasket 108 of the rear pump housing 101.
Different from the surface forming mode of the first abrasion sealer 109 in embodiment 1, second in the present embodiment is wear-resisting close
The abrasion sealer 209 of sealing 212 and the 3rd, its processing method are to substitute the preceding pump housing 100 and the rear pump housing 101 using standard slab to detain
Close on the rear pump housing 101 or the preceding pump housing 100 for scribbling paste mixture, it is wear-resisting close to be used as mould auxiliary second by standard slab
The shaping of both the abrasion sealer 209 of sealing 212 and the 3rd relative seal faces.
Described standard slab, its flatness should be in allowed bands, while its simple shape, to ensure that it changes with temperature
Have less deflection, the second abrasion sealer 212 for so making and the seal face of the 3rd abrasion sealer 209 it is flat
Face degree will be higher, finally can be according to produce reality, it is determined whether needs are machined to the plane.This implementation is implemented
In example, standard slab is 50mm diameters 650mm one piece thick carbon steel sheet, and the flatness tolerance of working face is 0.1mm.Ordinary circumstance
Under, pony pump can also obtain preferable sealing effectiveness even if machining is not carried out to the plane, but mammoth pump is due to deformation
Measure relatively large, should pay the utmost attention to be machined.It is 1-4mm that thickness after processing is optimal after mechanical grinding processing.
In the manufacturing process of the second abrasion sealer 212 and the 3rd abrasion sealer 209, using standard slab as wear-resisting
The mould of sealant, it is fastened on after the lower surface smearing release agent of standard slab, centering and has placed paste mixing
On the preceding pump housing 100 of thing or the rear pump housing 101, unnecessary paste mixture is extruded；By hardening of resin bar in composite abrasion resistance material B
Part hardening paste mixes thing, removes standard slab after waiting paste mixture fully hardened.
The present embodiment abrasion sealer with respect to embodiment more than 1, a sometimes more mechanical processing technique, can increase
Add its manufacturing cost, but its advantage is：Even need to be machined, because of the composite abrasion resistance material B of single material, (second is wear-resisting
The material of the abrasion sealer 209 of sealant 212 and the 3rd) processing characteristics improve, can be at low cost to two wear-resistant seals
Layer 209 and 212 is machined, and improves its flatness, and the so preceding pump housing 100 and the can of the rear pump housing 101 are realized and exchanged, together
When this scheme ultimate cost be still below the prior art seal face relative to the preceding pump housing 100 and the rear pump housing 101 and carry out machine
The scheme that tool adds, this is mass production or one of part is only changed in creates condition.
In addition, by way of both the preceding pump housing 100 in embodiment 1 and the rear pump housing 101 seal faces mutually fasten, also may be used
To be molded respectively to the second abrasion sealer 212 in embodiment 2 and the 3rd abrasion sealer 209.
Embodiment 3
As shown in Figure 7 to 9, the difference with embodiment 1 is, both described preceding liner 102 and rear liner 106
Inner surface is equipped with ceramic layer 112.Ceramic layer 112 can be an entirety, can also be by multi-disc ceramics split.
In the interior edge ceramic embedded 113 of first abrasion sealer 109, the thickness of potsherd 113 is less than or equal to
The maximum gauge of first abrasion sealer 109.
By adjusting the thickness of potsherd 113, the thickness of the first abrasion sealer 109 can be controlled.Made pottery in the present embodiment
The thickness of ceramics 113 is 6mm.
Certainly, when pump housing size is smaller, and the thickness of the first wearing layer 109 is smaller, can also not during such as less than 3mm
If potsherd 113.This is due to that ceramic layer 112 has preferable protection to its outer after relatively thin abrasion sealer interior edge is worn
Effect.
Advantage of this embodiment is that：The wear-resisting pump housing can resist diameter 1-5mm or so because of the ceramic layer 112 of inner surface setting
Impact.
For the actual effect of the checking present invention, the WT100-420 abrasion resisting pumps pump housing assembling that we produce my company is laggard
Row contrast sealing effectiveness experiment, participate in 5 of contrast test with model pump, the prior art production that wherein pump 1 uses it is wear-resisting
The pump housing, it is not provided with abrasion sealer；Pump 2 is the pump housing produced using prior art, is not provided with abrasion sealer, but to preceding
The pump housing and the relative seal face of the rear pump housing have carried out machining to improve its flatness；Pump 3 is to employ described in embodiment 1
The wear-resisting pump housing of technology, 3mm or so the first abrasion sealer is provided with the pump housing behind；Pump 4 employs the institute of embodiment 2
The wear-resisting pump housing of technology is stated, abrasion sealer is provided with its preceding pump housing and the rear pump housing, machine has been carried out to wear-resistant seal face
Tool is processed to improve its flatness, and the thickness of abrasion sealer after the machining operation is in 2mm or so；Pump 5 has been used described in embodiment 3
The wear-resisting pump housing of technology, preceding liner and rear liner inner surface setting have potsherd, are provided with the resistance to of 5mm or so on the pump housing behind
Sealant is ground, thickness 5mm or so potsherd is inlaid with sealant.To make result more have comparativity, the fastening bolt of 5 pumps
Tightened using identical torque, sealing gasket uses 3mm rubber slab.Finally to 5 pump priming pressure testings, its sealing is recorded respectively
Start to occur pressure during seepage outside pad, concrete condition is as follows：
| Sequence number | Start leak pressure (Mpa) |
| Pump 1 | 0.18 |
| Pump 2 | 0.28 |
| Pump 3 | 1.33 |
| Pump 4 | 1.27 |
| Pump 5 | 1.01 |
As can be seen from the above table, the reliability sealed using pump 3, pump 4, the pump 5 of the wear-resisting pump housing of the technology of the present invention is obvious
Better than the pump 1 and pump 2 of prior art.
Production management personnel pump 2, pump 3, pump 4, pump 5 are made processing sealing surface or (and) cost of abrasion sealer carries out
Adjust, calculate workshop cost such as following table：
| Sequence number | Sealing surface processing and manufacturing cost (member) |
| Pump 2 | 1983.26 |
| Pump 3 | 253.35 |
| Pump 4 | 1287.54 |
| Pump 5 | 289.47 |
As can be seen from the above table, processed using the making of the pump 3, pump 4, the sealing surface of pump 5 of the wear-resisting pump housing of the technology of the present invention
Cost is significantly lower than the pump 2 of prior art, and it is primarily due to the work that the technology of the present invention greatly reduces processing sealing surface
The time of lathe is taken in skill, production efficiency significantly improves, therefore economic benefit is fairly obvious.
Therefore, the present invention preferably resolves the problem of prior art cost is high, efficiency is low, effect is poor.
Above in association with most preferred embodiment, invention has been described, but the invention is not limited in implementation disclosed above
Example, and modification, equivalent combinations that the various essence according to the present invention are carried out should be covered.
Claims (10)
1. a kind of wear-resisting pump housing, including discharge opening (110) and the preceding pump housing (100) and the rear pump housing (101) that mutually fasten；The preceding pump housing
(100) include suction inlet (111), front casing (103) and preceding liner (102), the rear pump housing (101) include rear casing (105) and after
Liner (106)；Sealing gasket (108) is provided between the preceding pump housing (100) and the rear pump housing (101), it is characterised in that the preceding pump housing
(100) with least one provided with protruding from the abrasion sealer on its surface in two relative seal faces of the rear pump housing (101),
It is the entirety that can not be split that the abrasion sealer and the preceding pump housing (100) or the rear pump housing (101), which are engaged agent bonding, described
The material of abrasion sealer is to include the composite abrasion resistance material B of abrasion resistant particles and resin.
2. a kind of wear-resisting pump housing according to claim 1, it is characterised in that the preceding pump housing (100) or the rear pump housing (101)
The first abrasion sealer (109) is bonded with the seal face of one of them.
3. a kind of wear-resisting pump housing according to claim 2, it is characterised in that in first abrasion sealer (109)
Interior edge is provided with potsherd (113), and the thickness of potsherd (113) is less than or equal to the maximum gauge of the first abrasion sealer (109).
4. a kind of wear-resisting pump housing according to claim 1 or 2 or 3, it is characterised in that the preceding liner (102) is rear interior
At least one inner surface is provided with ceramic layer (112) in both linings (106).
A kind of 5. wear-resisting pump housing according to claim 1, it is characterised in that the seal face of the preceding pump housing (100) with
Between the sealing gasket (108) be provided with the second abrasion sealer (212), it is described after the pump housing (101) seal face with it is described close
The 3rd abrasion sealer (209) is provided between packing (108).
6. according to claim 1 or 2 or 3 or a kind of described wear-resisting pump housing, it is characterised in that the weight ratio of the abrasion resistant particles
For 50%-95%, including one kind of carborundum, corundum, silicon nitride, garnet, zirconium oxide or its combination；The weight of the resin
Than for 5-40%.
7. according to claim 1 or 2 or 3 or a kind of described wear-resisting pump housing, it is characterised in that be provided with the abrasion sealer
For adjusting the adjust pad of its thickness, the material of the adjust pad is ceramics, hard alloy, one kind or its group of metal
Close.
8. according to claim 1 or 2 or 3 or a kind of described wear-resisting pump housing, it is characterised in that the thickness of the abrasion sealer
For 0.3-30mm.
9. according to a kind of preparation method of the wear-resisting pump housing in claim 1, it is characterised in that comprise the following steps：
1) by die surface coating release agent, front casing (103) or rear casing (105) are positioned with mould assembling；
2) compound of liner is injected between mould and front casing (103) or rear casing (105)；Discharge air；Make liner
Compound hardens；
3) mould is split out, cleans out the releasing agent of two relative seal faces on the preceding pump housing (100) and the rear pump housing (101)；
4) wear-resisting pellet and resin are mixed by composite abrasion resistance material B proportioning, paste mixture is tuned into, by the preceding pump housing
(100) or the rear pump housing (101) one of them seal face it is horizontal positioned upwards, adjust pad is placed thereon, in the sealing
Smear the paste mixture in end face；
5) another seal face downward horizontal in the preceding pump housing (100) or the rear pump housing (101) is lifted, applied in its seal face
Releasing agent is smeared, is fastened on after centering on the preceding pump housing (100) for having placed paste mixture or the rear pump housing (101), extrusion is more
Remaining paste mixture；
6) press hardening of resin condition hardening paste in composite abrasion resistance material B and mix thing, by position after waiting paste mixture fully hardened
Hung out in the preceding pump housing (100) of top or the rear pump housing (101).
10. according to a kind of preparation method of the wear-resisting pump housing in claim 1, it is characterised in that comprise the following steps：
1) by die surface coating release agent, front casing (103) or rear casing (105) are positioned with mould assembling；
2) compound of liner is injected between mould and front casing (103) or rear casing (105)；Discharge air；Make liner
Compound hardens；
3) mould is split out, cleans out the releasing agent of two relative seal faces on the preceding pump housing (100) and the rear pump housing (101)；
4) wear-resisting pellet and resin are mixed by composite abrasion resistance material B proportioning, paste mixture is tuned into, by the preceding pump housing
(100) or the rear pump housing (101) one of them seal face it is horizontal positioned upwards, adjust pad is placed thereon, in the sealing
Smear the paste mixture in end face；
5) mould using standard slab as abrasion sealer, after the lower surface smearing release agent of standard slab, centering
It is fastened on the preceding pump housing (100) for having placed paste mixture or the rear pump housing (101), extrudes unnecessary paste mixture；
6) press hardening of resin condition hardening paste in composite abrasion resistance material B and mix thing, will mark after waiting paste mixture fully hardened
Quasi- slab is removed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711164969.2A CN107762977A (en) | 2017-11-21 | 2017-11-21 | A kind of wear-resisting pump housing and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711164969.2A CN107762977A (en) | 2017-11-21 | 2017-11-21 | A kind of wear-resisting pump housing and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107762977A true CN107762977A (en) | 2018-03-06 |
Family
ID=61279139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711164969.2A Pending CN107762977A (en) | 2017-11-21 | 2017-11-21 | A kind of wear-resisting pump housing and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN107762977A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488096A (en) * | 2018-05-24 | 2018-09-04 | 珠海格力电器股份有限公司 | Spiral case component and air conditioner |
| CN108869398A (en) * | 2018-07-24 | 2018-11-23 | 广州市拓道新材料科技有限公司 | A kind of wear-resisting pump housing and preparation method thereof |
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