CN106003564A - End cover for medical compressor core and manufacturing method thereof - Google Patents
End cover for medical compressor core and manufacturing method thereof Download PDFInfo
- Publication number
- CN106003564A CN106003564A CN201610532279.7A CN201610532279A CN106003564A CN 106003564 A CN106003564 A CN 106003564A CN 201610532279 A CN201610532279 A CN 201610532279A CN 106003564 A CN106003564 A CN 106003564A
- Authority
- CN
- China
- Prior art keywords
- end cap
- bearing
- cap body
- medical
- injection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B29C45/14467—Joining articles or parts of a single article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
Abstract
The invention discloses an end cover for a medical compressor core. The end cover comprises an end cover body manufactured from nonferrous metal through die casting. A bearing installation hole is formed in the middle of the end cover body. An annular flange is arranged on the edge of the bottom of the bearing installation hole. A bearing connected with a motor is arranged in the bearing installation hole. An engineering plastic protective sleeve with wear resistance, compression resistance and damping effects is arranged in the gap between the bearing and the side wall of the bearing installation hole. The end cover body is formed in a die casting mode. The end cover formed through die casting of nonferrous metal keeps the advantages of rigidity and strength of an original metal end cover, and the engineering plastic protective sleeve is arranged in the gap between the bearing and the side wall of the bearing installation hole, so that the end cover keeps the advantages of the micro buffer elastic effect and impact relief of a plastic end cover in the market, and has the advantage of rigidity of the metal end cover. The engineering plastic protective sleeve can prevent a gap from being produced between the bearing and the wall of the bearing installation hole, and consistency of compactness between the bearing and the wall of the bearing installation hole of each product can be guaranteed.
Description
Technical field
The present invention relates to medical-grade compressor, particularly to a kind of medical-grade compressor core end cap.
Background technology
Within the compressor, it usually needs use metal end by bearing and motor with cup rotor (i.e. split-pole
Formula motor) it is rotationally connected.At present, traditional on market motor with cup rotor compressor metal end
Lid, as depicted in figs. 1 and 2, metal end 100 is the most one-body molded by metal, metal
The two ends of end cap 100 offer hole 101, location, and the centre of metal end 100 offers
For assembling the brearing bore 103 of bearing 102.
The shortcoming of above-mentioned motor with cup rotor compressor metal end is: 1, all one-body molded by metal,
The position degree of position, three holes does not ensures, concordance is poor；2, metal end and the assembling of bearing
Need interference fit so that the requirement on machining accuracy of the endoporus 103 of assembling bearing is the highest, and needs
The bearing assembling press equipment wanting special assembles；Increase cost but it cannot be guaranteed that process
The precision concordance in hole.3, after assembling bearing, if the coordinating of bearing and brearing bore
Gap or interference fits occur, makes bearing be caused bearing at work for a long time by radial force
And the fit clearance between end cap is gradually increased, and then motor operating noise is caused to increase, even
Metal end is caused to damage or scrap；Finally resulting in bearing makes motor not operate with end cap disengaging
And burn.
Also having a kind of end cap to use engineering glue integrated injection molding to form, this kind uses the injection of engineering glue
End cap which solve above-mentioned metal end bearing interference fit produce defect, can solve
Certainly bearing and the clearance issues of dead eye sidewall, but, its rigidity of this end cap is inadequate, one
Easily it is deformed under fixed external force effect, accordingly, it would be desirable to above two end cap is changed
Enter.
Summary of the invention
It is an object of the invention to the drawbacks described above for prior art, it is provided that a kind of simple in construction,
Easy to use and medical-grade compressor core end cap.
For solving the drawbacks described above of prior art, present invention provide the technical scheme that a kind of doctor
With compression movement end cap, including the end cap body being made by non-ferrous metal die casting, described
The middle part of end cap body has a bearing mounting hole, and the bottom margin of described bearing mounting hole is provided with
Annular rib, is provided with a bearing being connected with motor in described bearing mounting hole, described bearing and
It is provided with in gap between described bearing mounting hole sidewall and there is wear-resisting, resistance to compression, damping and heatproof
The engineering plastic sheath of effect.The rigidity of metal end on market and plastic cement end cap tough wear-resistant hard
Property combine, and invented with mould ensure its 3 positional precisions and assembling bearing one
Cause property.
As a kind of improvement of medical-grade compressor core end cap of the present invention, described bearing mounting hole
Sidewall is provided with two symmetrical breach, the corresponding described indentation, there of described engineering plastic sheath
Position be provided with the projection coordinated with this breach.
As a kind of improvement of medical-grade compressor core end cap of the present invention, described end cap body also has
Having two to install arm, the end of two described installation arms is equipped with the swivel nut penetrated for screw rod,
One end of described swivel nut protrudes horizontally up the diameter grafting positioning sleeve less than described swivel nut.
As a kind of improvement of medical-grade compressor core end cap of the present invention, described bearing is placed on described
Time in bearing mounting hole, it is fixed to be placed on the three-point fix mould of injection machine by described end cap body
Position ensures the concordance of its positional precision, and described engineering plastic boot injects described by injection machine
In gap.
As a kind of improvement of medical-grade compressor core end cap of the present invention, described swivel nut is interior hexagonal
Swivel nut.
As a kind of improvement of medical-grade compressor core end cap of the present invention, described end cap body is for having
Non-ferrous metal die casting.
As a kind of improvement of medical-grade compressor core end cap of the present invention, the end of described end cap body
Portion be provided with two for fixing injection fixing hole, described injection fixing hole is kidney-shaped, projection pair
The position that should be molded fixing hole is provided with injection locating piece.
Compared with prior art, the invention have the advantage that the mode that present invention employs die casting will
End cap body die cast, this by the end cap after non-ferrous metal die cast, maintain original
The advantage of the rigid of metal end, and this product is also at bearing and described bearing mounting hole
Engineering plastic sheath it is provided with in gap between sidewall.So maintain market plastic cement end cap micro-
The snubber elastomeric effect measured, the advantage slowing down impulsive force, have again the rigidity advantage of metal end；
Engineering plastic sheath is possible to prevent between bearing and bearing mounting hole wall to produce gap, it is possible to protect
Demonstrate,prove the compactness between each product bearing and bearing mounting hole wall consistent, play the buffering of trace
Elastic reaction, slows down the effect of impulsive force, make that motor is stable in operation process, sound is little,
Service life is long.
It is a further object of the present invention to provide the manufacture method of a kind of medical-grade compressor core end cap,
Comprise the following steps:
A) end cap body is made: utilize and there is end cap body profile cavity mould to melting state
Non-ferrous metal apply high pressure, until melting state non-ferrous metal cool down after, take out molding end
Lid body；
B) bearing is put into:
1, brearing bore is put into location on injection mold centralized positioning post；
The center, two ends that 2, the two ends grafting positioning sleeve of end cap body is inserted in injection mold is fixed
In hole, position；
3, end cap body is made to be fixed on injection mold；
C) be molded end cap this is the most internal for engineering plastic sheath: by step B) in injection mold
Level puts into the injection-moulding position of injection machine, and the engineering glue after melting injects end cap by injection machine
In gap between center hole wall and the bearing of body, engineering plastic cooling and solidifying to be implanted is protected
After compression set type, whole end cap body is taken out, completes.
As a kind of improvement of the manufacture method of medical-grade compressor core end cap of the present invention, described in have
Non-ferrous metal is aluminum, aluminium alloy, kirsite, magnesium alloy etc..
The invention have the advantage that the present invention uses the mode of die casting to make end cap, by injection
Engineering glue is injected in the gap between center hole wall and the bearing of end cap body by mode, by two
This production can be completed by procedure, and processing technology is simple and convenient, easily implements, it is ensured that
Its positional precision concordance of 3.(note 3 is: end cap two ends grafting positioning sleeve and center
3 positional precisions of dead eye) and eliminate between center hole wall and the bearing of end cap body
Gap, it is ensured that its compactness coordinated is consistent, and bearing periphery uniform force is consistent, makes product
Performance is more preferable.
Accompanying drawing explanation
The most with reference to the accompanying drawings with detailed description of the invention to the present invention and useful technique effect thereof
It is described in further detail, wherein:
Fig. 1 is prior art construction figure.
Fig. 2 is prior art construction figure.
Fig. 3 is explosive view of the present invention.
Fig. 4 is the structural representation that bearing mounting hole put into by bearing of the present invention.
Reference title: 1, end cap body 2, bearing mounting hole 3, annular rib 4,
Bearing 5, gap 6, engineering plastic boot 7, breach 8, projection 9, installation arm 10, spiral shell
Set 11, grafting positioning sleeve 12, injection fixing hole 13, injection locating piece.
Detailed description of the invention
The invention will be further described with specific embodiment the most with reference to the accompanying drawings, but the present invention
Embodiment be not limited to this.
As shown in Figure 3 and Figure 4, a kind of medical-grade compressor core end cap, including by non-ferrous metal
The end cap body 1 that die casting is made, the middle part of end cap body 1 has a bearing mounting hole 2,
The bottom margin of bearing mounting hole 2 be provided with annular rib 3, be provided with in bearing mounting hole 2 one with
The bearing 4 that motor connects, is provided with in the gap 5 between bearing 4 and bearing mounting hole 2 sidewall
Have wear-resisting, (engineering plastic refers to the engineering plastic boot 6 of resistance to compression, damping and heatproof effect
Can bear the mechanical-physical effect of some strength, impact resistance is preferable, at complicated rings such as heatproofs
Border aspect has the modified engineering macromolecular material of outstanding performance, such as PA66+GF, PPS+GF
Deng).
Preferably, the sidewall of bearing mounting hole 2 is provided with two symmetrical breach 7, work
Position at the corresponding breach 7 of journey plastic boot 6 is provided with the projection 8 coordinated with this breach 7.Breach
7 are possible to prevent engineering plastic boot 6 to move axially, and stability is higher.
Preferably, end cap body 1 also has two installation arms 9, two ends installing arms 9
Being equipped with the swivel nut 10 penetrated for screw rod, one end of swivel nut 10 protrudes horizontally up a diameter and is less than
The grafting positioning sleeve 11 of swivel nut 10.
Preferably, when bearing 4 is placed in bearing mounting hole 2, end cap body 1 is placed on note
Positioning on the three-point fix mould of molding machine, engineering plastic boot 6 is injected in gap 5 by injection machine.
Preferably, swivel nut 10 is interior hexagonal swivel nut.
Preferably, end cap body 1 is non-ferrous metal die casting.
Preferably, the bottom of end cap body 1 be provided with two each and every one for fixing injection fixing hole
12, the position of projection 8 corresponding injection fixing hole 12 is provided with injection locating piece 13.Injection is fixing
Hole is kidney-shaped, and during injection engineering plastic boot 6, the engineering glue of liquid can flow into end cap
The bottom of body, fixes when entering injection fixing hole, is possible to prevent the engineering plastic boot after solidification
Come off.
Compared with prior art, the invention have the advantage that the mode that present invention employs die casting will
End cap body 1 die cast, this have the end cap after non-ferrous metal die cast than ever
The higher advantage of end cap rigidity, and this product also bearing 4 and bearing mounting hole 2 sidewall it
Between gap 5 in be provided with the engineering plastic boot 6 with wear-resisting, resistance to compression and heatproof effect.This
Sample maintains the snubber elastomeric effect of market plastic cement end cap trace, slows down the advantage of impulsive force, again
There is the rigidity advantage of metal end；Engineering plastic boot 6 is possible to prevent bearing 4 and bearing mounting hole
Produce gap between 2 walls, make that motor is stable in operation process, sound is little, and can increase
Add the service life of this product.
The manufacture method of a kind of medical-grade compressor core end cap, comprises the following steps:
A) end cap body is made: utilize and there is end cap body profile cavity mould to melting state
Non-ferrous metal apply high pressure, until melting state non-ferrous metal cool down pressurize sizing after, take out
The end cap body of molding；
B) bearing is put into:
1, brearing bore is put into location on injection mold centralized positioning post；
The center, two ends that 2, the two ends grafting positioning sleeve of end cap body is inserted in injection mold is fixed
In hole, position；
3, end cap body is made to be fixed on injection mold；
C) be molded end cap this is the most internal for engineering plastic boot: by step B) in injection mold water
Keeping flat the injection-moulding position into injection machine, the engineering glue after melting injects end cap originally by injection machine
In gap between center hole wall and the bearing of body, engineering glue cooling and solidifying pressurize to be implanted is fixed
After type, whole end cap body is taken out, completes.
Preferably, non-ferrous metal is aluminum, aluminium alloy, kirsite or magnesium alloy etc..
The invention have the advantage that the present invention uses the mode of die casting to make end cap, by injection
Engineering glue is injected in the gap between center hole wall and the bearing of end cap body by mode, by two
This production can be completed by procedure, and processing technology is simple and convenient, easily implements, permissible
Ensure that the positional precision of 3 is consistent.And eliminate the center hole wall of end cap body and bearing it
Between produce gap, it is provided that properties of product.
Although an embodiment of the present invention has been shown and described, for the ordinary skill of this area
For personnel, it is possible to understand that can be to this in the case of without departing from the principle of the present invention and structure
A little embodiments carry out multiple change, revise, replace and modification, and the scope of the present invention is by appended power
Profit requires and equivalency range limits.
Claims (9)
1. a medical-grade compressor core end cap, it is characterised in that include by non-ferrous metal pressure
The end cap body that casting is made, the middle part of described end cap body has a bearing mounting hole, institute
State the bottom margin of bearing mounting hole and be provided with annular rib, be provided with in described bearing mounting hole one with
The bearing that motor connects, is provided with in the gap between described bearing and described bearing mounting hole sidewall
There is wear-resisting, the engineering plastic sheath of resistance to compression, damping and heatproof effect.
Medical-grade compressor core end cap the most according to claim 1, it is characterised in that
The sidewall of described bearing mounting hole is provided with two symmetrical breach, and described engineering plastic protects
The position overlapping corresponding described indentation, there is provided with the projection coordinated with this breach.
Medical-grade compressor core end cap the most according to claim 2, it is characterised in that
Described end cap body also have two install arms, the end of two described installation arms be equipped with for
The swivel nut that screw rod penetrates, one end of described swivel nut protrudes horizontally up a diameter inserting less than described swivel nut
Connect positioning sleeve.
Medical-grade compressor core end cap the most according to claim 3, it is characterised in that
When described bearing is placed in described bearing mounting hole, described end cap body is placed on injection machine
Positioning on three-point fix mould, described engineering plastic boot is injected in described gap by injection machine.
Medical-grade compressor core end cap the most according to claim 4, it is characterised in that
Described swivel nut is interior hexagonal swivel nut.
Medical-grade compressor core end cap the most according to claim 5, it is characterised in that
Described end cap body is non-ferrous metal die casting.
Medical-grade compressor core end cap the most according to claim 1, it is characterised in that
The bottom of described end cap body is provided with two and fixes for fixing injection fixing hole, described injection
Hole is kidney-shaped, and the position of projection correspondence injection fixing hole is provided with injection locating piece.
8. the manufacture method of a medical-grade compressor core end cap, it is characterised in that include with
Lower step:
A) end cap body is made: utilize and there is end cap body profile cavity mould to melting state
Non-ferrous metal apply Hpdc, until melting state non-ferrous metal cool down after, take out molding
End cap body；Ensure the position degree concordance of end cap body two ends grafting positioning sleeve；
B) bearing is put into:
1, brearing bore is put into location on injection mold centralized positioning post；
The center, two ends that 2, the two ends grafting positioning sleeve of end cap body is inserted in injection mold is fixed
In hole, position；
3, end cap body is made to be fixed on injection mold；
C) be molded end cap this is the most internal for engineering plastic sheath: by step B) in injection mold
Level puts into the injection-moulding position of injection machine, and the engineering glue after melting injects end cap by injection machine
In gap between center hole wall and the bearing of body, engineering plastic cooling and solidifying to be implanted is protected
After pressure, whole end cap body is taken out, completes.
The manufacture method of medical-grade compressor core end cap the most according to claim 8, its
Being characterised by, described non-ferrous metal is aluminum, aluminium alloy, kirsite, magnesium alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610532279.7A CN106003564B (en) | 2016-07-07 | 2016-07-07 | A kind of medical-grade compressor core end cap and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610532279.7A CN106003564B (en) | 2016-07-07 | 2016-07-07 | A kind of medical-grade compressor core end cap and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106003564A true CN106003564A (en) | 2016-10-12 |
| CN106003564B CN106003564B (en) | 2019-02-22 |
Family
ID=57108305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610532279.7A Active CN106003564B (en) | 2016-07-07 | 2016-07-07 | A kind of medical-grade compressor core end cap and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106003564B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201199651Y (en) * | 2008-05-27 | 2009-02-25 | 杭州微光电子设备厂 | Shaded pole motor with silica-gel bearing sheath |
| WO2010097609A1 (en) * | 2009-02-24 | 2010-09-02 | Dyson Technology Limited | Bearing support |
| EP2273137A1 (en) * | 2009-07-06 | 2011-01-12 | Aktiebolaget SKF | Connecting rod and method for its production |
| CN202946351U (en) * | 2012-11-20 | 2013-05-22 | 东莞市天昶机电制造有限公司 | Shaded pole motor compressor kirsite end cover |
| DE102014206870A1 (en) * | 2014-04-09 | 2015-10-15 | Aktiebolaget Skf | Bearing assembly and method for its manufacture |
| CN205889711U (en) * | 2016-07-07 | 2017-01-18 | 东莞市天昶机电制造有限公司 | Medical compression end cover for core |
-
2016
- 2016-07-07 CN CN201610532279.7A patent/CN106003564B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201199651Y (en) * | 2008-05-27 | 2009-02-25 | 杭州微光电子设备厂 | Shaded pole motor with silica-gel bearing sheath |
| WO2010097609A1 (en) * | 2009-02-24 | 2010-09-02 | Dyson Technology Limited | Bearing support |
| EP2273137A1 (en) * | 2009-07-06 | 2011-01-12 | Aktiebolaget SKF | Connecting rod and method for its production |
| CN202946351U (en) * | 2012-11-20 | 2013-05-22 | 东莞市天昶机电制造有限公司 | Shaded pole motor compressor kirsite end cover |
| DE102014206870A1 (en) * | 2014-04-09 | 2015-10-15 | Aktiebolaget Skf | Bearing assembly and method for its manufacture |
| CN205889711U (en) * | 2016-07-07 | 2017-01-18 | 东莞市天昶机电制造有限公司 | Medical compression end cover for core |
Non-Patent Citations (1)
| Title |
|---|
| 《齿轮制造工艺手册——滚、插、磨、剃、刨》编委会: "《齿轮制造工艺手册——滚、插、磨、剃、刨》", 30 April 2010, 机械工业出版社 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106003564B (en) | 2019-02-22 |
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