CN205889711U - Medical compression end cover for core - Google Patents
Medical compression end cover for core Download PDFInfo
- Publication number
- CN205889711U CN205889711U CN201620721250.9U CN201620721250U CN205889711U CN 205889711 U CN205889711 U CN 205889711U CN 201620721250 U CN201620721250 U CN 201620721250U CN 205889711 U CN205889711 U CN 205889711U
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- end cap
- bearing
- mounting hole
- medical
- bearing mounting
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Abstract
The utility model discloses a medical compression end cover for core, include the end cover body that is formed by non ferrous metal die -casting preparation, the middle part of end cover body has a bearing mounting hole, and the bottom edge of bearing mounting hole is equipped with annular flange, is equipped with a bearing of being connected with the motor in the bearing mounting hole, be equipped with in the clearance between bearing and the bearing mounting hole lateral wall wear -resisting, resistance to compression has, the engineering glue sheath of temperature resistant, cushioning effect. The utility model discloses a mode of die -casting with end cover body injection molding, this kind with the end cover behind the non ferrous metal injection molding, has kept the advantage of original metal end cap's rigidity intensity to this product still the bearing with the engineering plastics sheath has been set up in the clearance between the bearing mounting hole lateral wall. Keep the micro advantage that cushions the elastic reaction, slows down the impact force of market plastic end cover like this, had metal end cap's rigidity advantage again, the engineering plastics sheath can prevent to produce the clearance between bearing and the bearing installation pore wall to can guarantee the uniformity of the inseparable degree between every product bearing and the bearing installation pore wall.
Description
Technical field
This utility model is related to medical-grade compressor, particularly to a kind of medical-grade compressor core end cap.
Background technology
Within the compressor, it usually needs using metal end, bearing is rotated with motor with cup rotor (i.e. shaded pole motor)
Connect.At present, traditional on market motor with cup rotor compressor metal end, as depicted in figs. 1 and 2, metal end 100 generally by
Metal is integrally formed, and the two ends of metal end 100 offer location hole 101, and the centre of metal end 100 offers for filling
Join the brearing bore 103 of bearing 102.
The shortcoming of above-mentioned motor with cup rotor compressor metal end is: 1, is all integrally formed by metal, the position of three hole positions
Degree of putting can not guarantee, concordance is poor；2nd, the assembling of metal end and bearing needs interference fit so that assembling the endoporus 103 of bearing
Requirement on machining accuracy very high, and need special bearing assembling press equipment to assemble；Increase cost but it cannot be guaranteed that add
The precision concordance in work hole out.3rd, after assembling bearing, if gap or transition with the cooperation of brearing bore in bearing
Cooperation, makes bearing be subject to radial force to cause the fit clearance between bearing and end cap to be gradually increased at work for a long time, enters
And lead to motor operating noise to increase, even cause metal end to damage or scrap；Finally resulting in bearing makes electricity with end cap disengaging
Machine can not operate and burn.
A kind of end cap is also had to form using engineering glue integrated injection molding, its solution of the end cap that this kind is molded using engineering glue
The defect that above-mentioned metal end bearing interference fit produces, can solve the clearance issues of bearing and dead eye side wall, however,
Its rigidity of this end cap not, is easily deformed, accordingly, it would be desirable to enter to above two end cap under certain external force effect
Row improves.
Utility model content
The purpose of this utility model is the drawbacks described above for prior art, provide a kind of structure simple, easy to use and
Medical-grade compressor core end cap.
For solving the drawbacks described above of prior art, the technical scheme that this utility model provides is: a kind of medical-grade compressor core
With end cap, including the end cap body being made by non-ferrous metal die casting, the middle part of described end cap body has a bearing and installs
Hole, the bottom margin of described bearing mounting hole is provided with annular rib, is provided with the axle of one and motor connection in described bearing mounting hole
Hold, be provided with the gap between described bearing and described bearing mounting hole side wall and there is wear-resisting, resistance to compression, damping and heatproof effect
Engineering plastic sheath.The rigidity of metal end on market and plastic cement end cap tough wear-resistant hard are combined, and utility model
Ensure its 3 points of positional precisions and the concordance of assembling bearing with mould.
As one kind improvement of this utility model medical-grade compressor core end cap, the side wall of described bearing mounting hole is provided with
Two symmetrical breach, the position of the corresponding described indentation, there of described engineering plastic sheath is provided with prominent with the cooperation of this breach
Rise.
As one kind improvement of this utility model medical-grade compressor core end cap, described end cap body also has two installations
Arm, the end of two described installing arms is equipped with the swivel nut penetrating for screw rod, and one end of described swivel nut protrudes horizontally up a diameter
Grafting positioning sleeve less than described swivel nut.
As one kind improvement of this utility model medical-grade compressor core end cap, described bearing is placed on described bearing mounting hole
When interior, described end cap body is placed on the three-point fix mould of injection machine to position to ensure the concordance of its positional precision,
Described engineering plastic boot is injected in described gap by injection machine.
As one kind improvement of this utility model medical-grade compressor core end cap, described swivel nut is interior hexagonal swivel nut.
As one kind improvement of this utility model medical-grade compressor core end cap, described end cap body is non-ferrous metal die casting
Part.
As one kind improvement of this utility model medical-grade compressor core end cap, the bottom of described end cap body is provided with two
For fixing injection fixing hole, described injection fixing hole is in kidney-shaped, and it is fixed that the corresponding position being molded fixing hole of projection is provided with injection
Position block.
Compared with prior art, the utility model has the advantages that: this utility model employ the mode of die casting by end cap this
Body die cast, the end cap after this die cast by non-ferrous metal, the advantage maintaining the rigid of original metal end,
And this product is provided with engineering plastic sheath in the gap also between bearing and described bearing mounting hole side wall.So keep
The micro snubber elastomeric effect of market plastic cement end cap, slow down the advantage of impulsive force, have the rigid advantage of metal end again；Engineering
Plastic jacket can prevent from producing gap between bearing and bearing mounting hole wall it is possible to ensure that each product bearing is pacified with bearing
Compactness between dress hole wall is consistent, plays micro snubber elastomeric effect, slows down the effect of impulsive force, so that motor was being operated
Stablize in journey, sound is little, long service life.
Of the present utility model another object is that provides a kind of manufacture method of medical-grade compressor core end cap, walks including following
Rapid:
A) make end cap body: using having end cap body profile cavity mould, height is applied to the non-ferrous metal of melting state
Pressure, after the non-ferrous metal of melting state cools down, takes out the end cap body of molding；
B) put into bearing:
1st, brearing bore is put into positioning on injection mold centralized positioning post；
2nd, the two ends grafting positioning sleeve of end cap body is inserted in the two ends centralized positioning in the hole of injection mold；
3rd, end cap body is made to be fixed on injection mold；
C) engineering plastic sheath is molded end cap originally in vivo: the injection mold level in step b) is put into the note of injection machine
Mould position, the engineering glue after melting is injected in the gap between the center hole wall of end cap body and bearing by injection machine, treats
After the engineering plastic cooling and solidifying pressurize sizing of injection, whole end cap body is taken out, completes.
As a kind of improvement of the manufacture method of this utility model medical-grade compressor core end cap, described non-ferrous metal is
Aluminum, aluminium alloy, kirsite, magnesium alloy etc..
The utility model has the advantages that: this utility model makes end cap by the way of die casting, will by way of injection
Engineering glue injects in the gap between the center hole wall of end cap body and bearing, can have been made this product by two procedures
Become, processing technology is simple and convenient, easily implement it is ensured that its 3 points positional precision concordance.(3 points of note is: end cap two ends are inserted
Connect 3 points of positional precisions of positioning sleeve and central shaft bearing bore) and between eliminating between the center hole wall of end cap body and bearing
, it is ensured that the compactness of its cooperation is consistent, bearing periphery uniform force is consistent, makes properties of product more preferable for gap.
Brief description
Just with specific embodiment, this utility model and its beneficial technique effect are made detailed further below with reference to the accompanying drawings
Thin description, wherein:
Fig. 1 is prior art construction figure.
Fig. 2 is prior art construction figure.
Fig. 3 is this utility model explosive view.
Fig. 4 is that the structural representation in bearing mounting hole put into by this utility model bearing.
Reference title: 1, end cap body 2, bearing mounting hole 3, annular rib 4, bearing 5, gap 6, engineering plastic boot
7th, breach 8, projection 9, installing arm 10, swivel nut 11, grafting positioning sleeve 12, injection fixing hole 13, injection locating piece.
Specific embodiment
Just with specific embodiment, this utility model is further described with reference to the accompanying drawings below, but enforcement of the present utility model
Mode is not 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 body 1, the middle part of end cap body 1 has a bearing mounting hole 2, and the bottom margin of bearing mounting hole 2 is provided with annular rib 3,
It is provided with the bearing 4 of one and motor connection in bearing mounting hole 2, be provided with the gap 5 between bearing 4 and bearing mounting hole 2 side wall
(engineering plastic refers to bear the machine of some strength to have the engineering plastic boot 6 of wear-resisting, resistance to compression, damping and heatproof effect
Tool physical action, impact resistance preferably, has the modified engineering macromolecular material of outstanding performance in terms of the complex environments such as heatproof, than
As pa66+gf, pps+gf etc.).
Preferably, the side wall of bearing mounting hole 2 is provided with two symmetrical breach 7, and engineering plastic boot 6 corresponds to breach
Position at 7 is provided with the projection 8 with this breach 7 cooperation.Breach 7 can prevent engineering plastic boot 6 from moving axially, and stability is more
By force.
Preferably, end cap body 1 also has two installing arms 9, and the end of two installing arms 9 is equipped with and penetrates for screw rod
Swivel nut 10, one end of swivel nut 10 protrudes horizontally up the grafting positioning sleeve 11 that a diameter is less than swivel nut 10.
Preferably, when bearing 4 is placed in bearing mounting hole 2, end cap body 1 is placed on the three-point fix mould of injection machine
Upper positioning, 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 is provided with two for fixing injection fixing hole 12, and projection 8 is corresponding to be molded
The position of fixing hole 12 is provided with injection locating piece 13.Injection fixing hole is in kidney-shaped, during injection engineering plastic boot 6, liquid
The engineering glue of body can flow into the bottom of end cap body, fixes when entering injection fixing hole, the engineering glue shield after can preventing from solidifying
Set comes off.
Compared with prior art, the utility model has the advantages that: this utility model employ the mode of die casting by end cap this
Body 1 die cast, the end cap after this die cast by non-ferrous metal has the advantages that end cap rigidity is higher than ever, and this
Product is provided with the work with wear-resisting, resistance to compression and heatproof effect in the gap 5 also between bearing 4 and bearing mounting hole 2 side wall
Journey plastic boot 6.So maintain the advantage that plastic cement end cap micro snubber elastomeric in market acted on, slowed down impulsive force, have metal again
The rigid advantage of end cap；Engineering plastic boot 6 can prevent from producing gap between bearing 4 and bearing mounting hole 2 wall, makes motor in fortune
Stable during turning, sound is little, and can increase the service life of this product.
A kind of manufacture method of medical-grade compressor core end cap, comprises the following steps:
A) make end cap body: using having end cap body profile cavity mould, height is applied to the non-ferrous metal of melting state
Pressure, after the non-ferrous metal cooling pressurize sizing of melting state, takes out the end cap body of molding；
B) put into bearing:
1st, brearing bore is put into positioning on injection mold centralized positioning post；
2nd, the two ends grafting positioning sleeve of end cap body is inserted in the two ends centralized positioning in the hole of injection mold；
3rd, end cap body is made to be fixed on injection mold；
C) engineering plastic boot is molded end cap originally in vivo: the injection mold level in step b) is put into the injection of injection machine
Position, the engineering glue after melting is injected in the gap between the center hole wall of end cap body and bearing by injection machine, waits to note
After the engineering glue cooling and solidifying pressurize sizing entering, whole end cap body is taken out, completes.
Preferably, non-ferrous metal is aluminum, aluminium alloy, kirsite or magnesium alloy etc..
The utility model has the advantages that: this utility model makes end cap by the way of die casting, will by way of injection
Engineering glue injects in the gap between the center hole wall of end cap body and bearing, can have been made this product by two procedures
Become, processing technology is simple and convenient, easily implement it is ensured that 3 points of positional precision is consistent.And eliminate end cap body
The gap producing between center hole wall and bearing, provides properties of product.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with multiple changes in the case of without departing from principle of the present utility model and structure, repair
Change, replace and modification, scope of the present utility model is limited by claims and its equivalency range.
Claims (7)
1. a kind of medical-grade compressor core end cap is it is characterised in that include the end cap body being made by non-ferrous metal die casting,
The middle part of described end cap body has a bearing mounting hole, and the bottom margin of described bearing mounting hole is provided with annular rib, described
It is provided with the bearing of one and motor connection in bearing mounting hole, set in the gap between described bearing and described bearing mounting hole side wall
Have and there is wear-resisting, resistance to compression, damping and heatproof effect engineering plastic sheath.
2. medical-grade compressor core end cap according to claim 1 is it is characterised in that on the side wall of described bearing mounting hole
It is provided with two symmetrical breach, the position of the corresponding described indentation, there of described engineering plastic sheath is provided with and the cooperation of this breach
Projection.
3. medical-grade compressor core end cap according to claim 2 is it is characterised in that described end cap body also has two
Installing arm, the end of two described installing arms is equipped with the swivel nut penetrating for screw rod, and one end of described swivel nut protrudes horizontally up one
Diameter is less than the grafting positioning sleeve of described swivel nut.
4. medical-grade compressor core end cap according to claim 3 is it is characterised in that described bearing is placed on described bearing peace
During dress in the hole, described end cap body is placed on positioning on the three-point fix mould of injection machine, described engineering plastic boot passes through note
Molding machine injects in described gap.
5. medical-grade compressor core end cap according to claim 4 is it is characterised in that described swivel nut is interior hexagonal swivel nut.
6. medical-grade compressor core end cap according to claim 5 is it is characterised in that described end cap body is non-ferrous metal
Die casting.
7. medical-grade compressor core end cap according to claim 1 is it is characterised in that the bottom of described end cap body is provided with
Two are used for fixing injection fixing hole, and described injection fixing hole is in kidney-shaped, and the position of projection corresponding injection fixing hole is provided with note
Mould locating piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620721250.9U CN205889711U (en) | 2016-07-07 | 2016-07-07 | Medical compression end cover for core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620721250.9U CN205889711U (en) | 2016-07-07 | 2016-07-07 | Medical compression end cover for core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205889711U true CN205889711U (en) | 2017-01-18 |
Family
ID=57772060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620721250.9U Active CN205889711U (en) | 2016-07-07 | 2016-07-07 | Medical compression end cover for core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205889711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003564A (en) * | 2016-07-07 | 2016-10-12 | 东莞市天昶机电制造有限公司 | End cover for medical compressor core and manufacturing method thereof |
-
2016
- 2016-07-07 CN CN201620721250.9U patent/CN205889711U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106003564A (en) * | 2016-07-07 | 2016-10-12 | 东莞市天昶机电制造有限公司 | End cover for medical compressor core and manufacturing method thereof |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |