CN106003564B - A kind of medical-grade compressor core end cap and preparation method thereof - Google Patents
A kind of medical-grade compressor core end cap and preparation method thereof Download PDFInfo
- Publication number
- CN106003564B CN106003564B CN201610532279.7A CN201610532279A CN106003564B CN 106003564 B CN106003564 B CN 106003564B CN 201610532279 A CN201610532279 A CN 201610532279A CN 106003564 B CN106003564 B CN 106003564B
- Authority
- CN
- China
- Prior art keywords
- end cap
- bearing
- mounting hole
- bearing mounting
- cap ontology
- Prior art date
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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 present invention discloses a kind of medical-grade compressor core end cap, including the end cap ontology being made by non-ferrous metal die casting, the middle part of end cap ontology has a bearing mounting hole, the bottom margin of bearing mounting hole is equipped with annular rib, it is equipped with a bearing being connected to motor in bearing mounting hole, the engineering plastic boot with wear-resisting, resistance to compression, heatproof, cushioning effect is equipped in the gap between bearing and bearing mounting hole side wall.Present invention employs the modes of die casting by end cap ontology die cast, end cap after this die cast by non-ferrous metal, the advantages of maintaining the rigid of original metal end, and this product is provided with engineering plastic sheath in the gap also between bearing and the bearing mounting hole side wall.The micro snubber elastomeric effect of market plastic cement end cap is maintained in this way, is slowed down the advantages of impact force, and has the rigid advantage of metal end；Engineering plastic sheath can prevent from generating gap between bearing and bearing mounting hole wall, and can guarantee the consistency of the tightness between each product bearing and bearing mounting hole wall.
Description
Technical field
The present invention relates to medical-grade compressor, in particular to a kind of medical-grade compressor core end cap.
Background technique
Within the compressor, it usually needs rotated bearing and motor with cup rotor (i.e. shaded pole motor) using metal end
Connection.Currently, traditional motor with cup rotor compressor metal end in the market, as depicted in figs. 1 and 2, metal end 100 usually by
Metal is integrally formed, and the both ends of metal end 100 offer location hole 101, and the centre of metal end 100 is offered for filling
Brearing bore 103 with bearing 102.
The shortcomings that above-mentioned motor with cup rotor compressor metal end, is: 1, being all integrally formed by metal, the position of three hole locations
Degree of setting can not guarantee that consistency is poor；2, the assembly of metal end and bearing needs to be interference fitted, so that the inner hole 103 of assembly bearing
Requirement on machining accuracy it is very high, and need dedicated bearing assembly press equipment to assemble；Increase cost but cannot be guaranteed to add
The precision consistency in the hole that work comes out.3, after assembling bearing, if there is gap or transition in the cooperation of bearing and brearing bore
Cooperation makes bearing be caused the fit clearance between bearing and end cap to be gradually increased by radial force for a long time at work, into
And causes motor operating noise to increase, metal end is even caused to damage or scrap；Finally resulting in bearing and end cap disengaging makes electricity
Machine cannot be operated and be burnt up.
There are also a kind of end caps to be formed using engineering glue integrated injection molding, its solution of the end cap that this kind uses engineering glue to be molded
The defect that above-mentioned metal end bearing interference fit generates, can solve the clearance issues of bearing Yu bearing hole side wall, however,
Its rigidity of this end cap is inadequate, is easy to produce deformation under certain external force effect, therefore, it is necessary to above two end cap into
Row improves.
Summary of the invention
It is simple, easy to use and medical the purpose of the present invention is in view of the above drawbacks of the prior art, providing a kind of structure
Compress machine core end cap.
For solve the prior art drawbacks described above, present invention provide the technical scheme that a kind of medical-grade compressor core end
Lid, including the end cap ontology being made by non-ferrous metal die casting, the middle part of the end cap ontology has a bearing mounting hole, institute
The bottom margin for stating bearing mounting hole is equipped with annular rib, is equipped with a bearing being connected to motor, institute in the bearing mounting hole
It states and is equipped with the engineering with wear-resisting, resistance to compression, damping and heatproof effect in the gap between bearing and the bearing mounting hole side wall
Plastic jacket.The rigidity and plastic cement end cap tough wear-resistant hard of metal end in the market are combined, and invented with mold come
Guarantee its 3 position precisions and assembles the consistency of bearing.
As a kind of improvement of medical-grade compressor core end cap of the present invention, set on the side wall of the bearing mounting hole there are two
Symmetrical notch, the position that the engineering plastic sheath corresponds to the indentation, there are equipped with the protrusion cooperated with the notch.
As a kind of improvement of medical-grade compressor core end cap of the present invention, the end cap ontology also has there are two installing arm,
The end of two installing arms is equipped with the swivel nut penetrated for screw rod, and one end of the swivel nut protrudes horizontally up a diameter and is less than
The grafting positioning sleeve of the swivel nut.
As a kind of improvement of medical-grade compressor core end cap of the present invention, the bearing is placed in the bearing mounting hole
When, the end cap ontology is placed on to the consistency positioned on the three-point fix mold of injection molding machine to guarantee its position precision, institute
Engineering plastic boot is stated to inject in the gap by injection molding machine.
As a kind of improvement of medical-grade compressor core end cap of the present invention, the swivel nut is interior hexagonal swivel nut.
As a kind of improvement of medical-grade compressor core end cap of the present invention, the end cap ontology is non-ferrous metal die casting.
As a kind of improvement of medical-grade compressor core end cap of the present invention, the bottom of the end cap ontology is set there are two being used for
Fixed injection molding fixation hole, the injection molding fixation hole are in kidney-shaped, and the position of the corresponding injection molding fixation hole of protrusion is equipped with injection molding locating piece.
Compared with prior art, the invention has the advantages that present invention employs the modes of die casting to be cast into end cap ontology
Type, the end cap after this die cast by non-ferrous metal, the advantages of maintaining the rigid of original metal end, and this production
Product are provided with engineering plastic sheath in the gap also between bearing and the bearing mounting hole side wall.Market modeling is maintained in this way
The micro snubber elastomeric effect of glue end cap slows down the advantages of impact force, and has the rigid advantage of metal end；Engineering plastic sheath
Can prevent from generating gap between bearing and bearing mounting hole wall, and can guarantee each product bearing and bearing mounting hole wall it
Between tightness it is consistent, play the role of micro snubber elastomeric, slow down impact force, keep motor steady during operation
Determine, sound is small, long service life.
It is a further object of the present invention to provide a kind of production methods of medical-grade compressor core end cap, comprising the following steps:
A end cap ontology) is made: high using having end cap ontology shape cavity mould to apply the non-ferrous metal of melting state
Pressure takes out molding end cap ontology after the non-ferrous metal of melting state is cooling；
B) it is put into bearing:
1, brearing bore is put on injection mold centralized positioning column and is positioned；
2, the both ends grafting positioning sleeve of end cap ontology is inserted in the both ends center positioning hole of injection mold；
3, it is fixed on end cap ontology on injection mold；
C) engineering plastic sheath is molded in end cap ontology: the injection mold level in step B) is put into the note of injection molding machine
Position is moulded, the engineering glue after thawing is injected by injection molding machine in the gap between the center hole wall and bearing of end cap ontology, to
After the engineering plastic cooling and solidifying pressure maintaining sizing of injection, entire end cap ontology is taken out, is completed.
A kind of improvement of production method as medical-grade compressor core end cap of the present invention, the non-ferrous metal are aluminium, aluminium
Alloy, kirsite, magnesium alloy etc..
The invention has the advantages that the present invention makes end cap by the way of die casting, engineering glue is infused by way of injection molding
Enter in the gap between the center hole wall of end cap ontology and bearing, this product can be completed by two procedures, is made
Simple process is convenient, is easy to implement, guarantees its 3 points of position precision consistency.(3 points of note are: end cap both ends grafting positioning sleeve
With 3 position precisions of central axis bearing bore) and the gap between the center hole wall of end cap ontology and bearing is eliminated, guarantee
The tightness that it cooperates is consistent, and bearing periphery uniform force is consistent, keeps properties of product more preferable.
Detailed description of the invention
Just the present invention and its beneficial technical effect are made with specific embodiment with reference to the accompanying drawings below further details of
Description, in which:
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 schematic diagram that bearing of the present invention is put into bearing mounting hole.
Appended drawing reference title: 1, end cap ontology 2, bearing mounting hole 3, annular rib 4, bearing 5, gap 6, engineering
Plastic boot 7, notch 8, protrusion 9, installing arm 10, swivel nut 11, grafting positioning sleeve 12, injection molding fixation hole 13, injection molding positioning
Block.
Specific embodiment
Just the invention will be further described with specific embodiment with reference to the accompanying drawings below, but embodiments of the present invention not office
It is limited to this.
As shown in Figure 3 and Figure 4, a kind of medical-grade compressor core end cap, including the end being made by non-ferrous metal die casting
Lid ontology 1, the middle part of end cap ontology 1 have a bearing mounting hole 2, and the bottom margin of bearing mounting hole 2 is equipped with annular rib 3,
It is equipped with a bearing 4 being connected to motor in bearing mounting hole 2, is equipped in the gap 5 between 2 side wall of bearing 4 and bearing mounting hole
(engineering plastic refers to the machine for being able to bear some strength to engineering plastic boot 6 with wear-resisting, resistance to compression, damping and heatproof effect
Tool physical action, impact resistance is preferable, there is the modification engineering high molecular material of outstanding performance in terms of the complex environments such as heatproof, than
Such as PA66+GF, PPS+GF).
Preferably, it is set on the side wall of bearing mounting hole 2 there are two symmetrical notch 7, engineering plastic boot 6 corresponds to notch
Position at 7 is equipped with the protrusion 8 cooperated with the notch 7.Notch 7 can prevent engineering plastic boot 6 from moving axially, and stability is more
By force.
Preferably, end cap ontology 1 also has there are two installing arm 9, and the end of two installing arms 9 is equipped with to be penetrated for screw rod
Swivel nut 10, one end of swivel nut 10 protrude horizontally up a diameter be less than swivel nut 10 grafting positioning sleeve 11.
Preferably, when bearing 4 is placed in bearing mounting hole 2, end cap ontology 1 is placed on to the three-point fix mold of injection molding machine
Upper positioning, engineering plastic boot 6 are injected in gap 5 by injection molding machine.
Preferably, swivel nut 10 is interior hexagonal swivel nut.
Preferably, end cap ontology 1 is non-ferrous metal die casting.
Preferably, the bottom of end cap ontology 1 is equipped with two injection molding fixation holes 12 for fixing, the corresponding injection molding of protrusion 8
The position of fixation hole 12 is equipped with injection molding locating piece 13.Being molded fixation hole is in kidney-shaped, during being molded engineering plastic boot 6, liquid
The engineering glue of body can flow into the bottom of end cap ontology, into fixing when being molded fixation hole, can prevent the engineering glue after solidifying from protecting
Set falls off.
Compared with prior art, the invention has the advantages that present invention employs the modes of die casting to be cast into end cap ontology 1
Type, the end cap after this die cast by non-ferrous metal have the advantages that rigidly more higher than previous end cap, and this product also exists
The engineering plastic boot with wear-resisting, resistance to compression and heatproof effect is provided in gap 5 between 2 side wall of bearing 4 and bearing mounting hole
6.The micro snubber elastomeric effect of market plastic cement end cap is maintained in this way, is slowed down the advantages of impact force, and has the rigid of metal end
Property advantage；Engineering plastic boot 6 can prevent from generating gap between 2 wall of bearing 4 and bearing mounting hole, make motor during operation
Stabilization, sound are small, and can increase the service life of this product.
A kind of production method of medical-grade compressor core end cap, comprising the following steps:
A end cap ontology) is made: high using having end cap ontology shape cavity mould to apply the non-ferrous metal of melting state
Pressure takes out molding end cap ontology after the cooling pressure maintaining sizing of the non-ferrous metal of melting state；
B) it is put into bearing:
1, brearing bore is put on injection mold centralized positioning column and is positioned；
2, the both ends grafting positioning sleeve of end cap ontology is inserted in the both ends center positioning hole of injection mold；
3, it is fixed on end cap ontology on injection mold；
C) engineering plastic boot is molded in end cap ontology: the injection mold level in step B) is put into the injection molding of injection molding machine
Position is injected the engineering glue after thawing by injection molding machine in the gap between the center hole wall and bearing of end cap ontology, wait infuse
After the engineering glue cooling and solidifying pressure maintaining sizing entered, entire end cap ontology is taken out, is completed.
Preferably, non-ferrous metal is aluminium, aluminium alloy, kirsite or magnesium alloy etc..
The invention has the advantages that the present invention makes end cap by the way of die casting, engineering glue is infused by way of injection molding
Enter in the gap between the center hole wall of end cap ontology and bearing, this product can be completed by two procedures, is made
Simple process is convenient, is easy to implement, it is ensured that 3 points of position precision is consistent.And eliminate the center hole wall of end cap ontology
The gap generated between bearing, provides properties of product.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out in the case where not departing from the principle of the present invention and structure to these embodiments by understanding
And modification, the scope of the present invention are defined by the appended claims and their equivalents.
Claims (3)
1. a kind of medical-grade compressor core end cap, which is characterized in that including the end cap ontology being made by non-ferrous metal die casting,
The middle part of the end cap ontology has a bearing mounting hole, and the bottom margin of the bearing mounting hole is equipped with annular rib, described
It is equipped with a bearing being connected to motor in bearing mounting hole, is set in the gap between the bearing and the bearing mounting hole side wall
There is the engineering plastic sheath with wear-resisting, resistance to compression, damping and heatproof effect；Phase there are two being set on the side wall of the bearing mounting hole
Mutual symmetrical notch, the position that the engineering plastic sheath corresponds to the indentation, there are equipped with the protrusion cooperated with the notch；It is described
End cap ontology also has there are two installing arm, and the end of two installing arms is equipped with the swivel nut penetrated for screw rod, the spiral shell
One end of set protrudes horizontally up the grafting positioning sleeve that a diameter is less than the swivel nut；The bearing is placed in the bearing mounting hole
When, the end cap ontology is placed on the three-point fix mold of injection molding machine and is positioned, the engineering plastic boot is infused by injection molding machine
Enter in the gap；The bottom of the end cap ontology is set there are two injection molding fixation hole for fixing, and the injection molding fixation hole is in
The position of kidney-shaped, the corresponding injection molding fixation hole of protrusion is equipped with injection molding locating piece；
It is as follows that the end cap ontology is placed on the step of positioning on the three-point fix mold of injection molding machine:
(1), brearing bore is put on injection mold centralized positioning column and is positioned；
(2), the both ends grafting positioning sleeve of end cap ontology is inserted in the both ends center positioning hole of injection mold；
(3), it is fixed on end cap ontology on injection mold.
2. medical-grade compressor core end cap according to claim 1, which is characterized in that the swivel nut is interior hexagonal swivel nut.
3. medical-grade compressor core end cap according to claim 2, which is characterized in that the end cap ontology is non-ferrous metal
Die casting.
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 CN106003564A (en) | 2016-10-12 |
| CN106003564B true CN106003564B (en) | 2019-02-22 |
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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 |
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Family Cites Families (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 |
| DE102009031763A1 (en) * | 2009-07-06 | 2011-01-13 | 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 |
| DE102014206870B4 (en) * | 2014-04-09 | 2022-09-08 | Aktiebolaget Skf | Bearing arrangement 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 |
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2016
- 2016-07-07 CN CN201610532279.7A patent/CN106003564B/en active Active
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| Publication number | Publication date |
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| CN106003564A (en) | 2016-10-12 |
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