CN104728112B - Cylinder and compressor - Google Patents
Cylinder and compressor Download PDFInfo
- Publication number
- CN104728112B CN104728112B CN201310712489.0A CN201310712489A CN104728112B CN 104728112 B CN104728112 B CN 104728112B CN 201310712489 A CN201310712489 A CN 201310712489A CN 104728112 B CN104728112 B CN 104728112B
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- CN
- China
- Prior art keywords
- hole
- cylinder
- screwed hole
- oblique screwed
- oblique
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/10—Stators
Abstract
The invention provides a kind of cylinder and compressor, through hole is threaded on the cylinder；Tapped through hole includes oblique screwed hole in first, oblique screwed hole and straight thread hole in second；Oblique screwed hole is separately positioned on tapped through hole two ends and is connected with straight thread hole in oblique screwed hole and second in first；First Outer screw passes sequentially through oblique screwed hole and straight thread hole in first and is arranged on cylinder threadably, for external upper flange, muffler to be fixed on into cylinder；Second Outer screw passes sequentially through oblique screwed hole and straight thread hole in second and is arranged on cylinder threadably, for outside lower flange to be fixed on into cylinder.Its is with low cost, simple structure, easy for installation, and can improve the problem of thread load skewness, reduces the deflection that flange fastens exhaust hood endoporus, effectively prevents pump housing phenomenon even stuck to seize up so that the operation of compressor is more reliable.
Description
Technical field
The present invention relates to field of air conditioning, more particularly to a kind of cylinder and compressor.
Background technology
With the continuous improvement continued to develop with people's living standard of society, air-conditioning has turned into most important during people live
One of electrical equipment.
At present, the assembling of compressor pump is to be connected on cylinder simultaneously upper muffler, upper flange with screw in air-conditioner
Centering, is then placed in bent axle, roller and slide plate and checks gap with patch, then be connected on cylinder simultaneously lower flange with screw
Centering.It is connected by screw on cylinder when by lower flange, screw need to be tightened with certain torque, through often there is pump housing fortune after fastening
Turn not smooth or even stuck situation, further investigation reveals that screw with the rigidity and the of different sizes, load of deformation of cylinder in each circle thread
Upper skewness（The load for wherein screwing part first lap is maximum, accounts for the 1/3 of full payload）, cause cylinder bore upper and lower end
Circularity is changed greatly at face.And lower flange tightens rear uncontrollable gap, pump housing smoothness can only be leaned on to detect, so as to cause cylinder
Internal Hole Deformation, ultimately results in the pump housing even stuck to seize up.
In the prior art, the general scheme for using is the distance between increase cylinder screwed hole and endoporus, can thus be led
Causing cylinder wall thickness increases, and not only cost is increased, and is unfavorable for the miniaturization of compressor.
The Chinese patent of Patent No. 201220658838.6 discloses a kind of compresser cylinder, wherein being disclosed in cylinder
The technical scheme of dashpot is set around screwed hole, and this mode makes the processing and fabricating of cylinder become difficult, and ridge is carried
The problem of lotus skewness is still present.
The content of the invention
It is an object of the invention to provide a kind of cylinder and compressor, its is with low cost, simple structure, easy for installation, can
Improve the problem of thread load skewness, reduce the deflection that flange fastens exhaust hood endoporus, effectively prevent the pump housing from operating not
Smooth or even stuck phenomenon.
To achieve the above object, the technical solution adopted in the present invention is：
A kind of cylinder, through hole is threaded on the cylinder；
The tapped through hole includes oblique screwed hole in first, oblique screwed hole and straight thread hole in second；
In described first in oblique screwed hole and described second oblique screwed hole be separately positioned on the tapped through hole two ends and with
The straight thread hole connection；
First Outer screw passes sequentially through oblique screwed hole and straight thread hole in described first and installs threadably
In the cylinder, for external upper flange, muffler to be fixed on into the cylinder；
Second Outer screw passes sequentially through oblique screwed hole and straight thread hole in described second and installs threadably
On the cylinder, for outside lower flange to be fixed on into the cylinder.
Wherein in one embodiment, the inner bevel degree of oblique screwed hole is 5 ° to 25 ° in described first.
Wherein in one embodiment, one end away from the straight thread hole of oblique screwed hole sets first in described first
Counterbore；
First counterbore be rectangle counterbore, and the nut with diameter greater than first Outer screw diameter.
Wherein in one embodiment, the depth of oblique screwed hole is 2 to 5 pitch in described first.
Wherein in one embodiment, the inner bevel degree of oblique screwed hole is 5 ° to 25 ° in described second.
Wherein in one embodiment, one end away from the straight thread of oblique screwed hole sets second and sinks in described second
Hole.
Second counterbore be rectangle counterbore, and the nut with diameter greater than second Outer screw diameter.
Wherein in one embodiment, the depth of oblique screwed hole is 2 to 5 pitch in described second.
A kind of compressor, including any of the above technical characteristic cylinder.
The beneficial effects of the invention are as follows：
Tiltedly screwed hole is respectively provided with first in oblique screwed hole and second by using tapped through hole two ends so that the present invention
Have the following advantages that：With low cost, simple structure is easy for installation, and can improve the problem of thread load skewness, subtracts
Few flange fastens the deflection of exhaust hood endoporus, the phenomenon for effectively preventing the pump housing even stuck to seize up, so that compressor
Operation it is more reliable.
Brief description of the drawings
Fig. 1 is cylinder operation connection diagram of the invention；
Fig. 2 is the embodiment schematic diagram of cylinder of the invention；
Fig. 3 is another embodiment schematic diagram of cylinder of the invention；
Wherein：1 cylinder;2 tapped through holes；Oblique screwed hole in 3 first；Oblique screwed hole in 4 second；5 first Outer screws；6
Upper flange；7 mufflers；8 lower flanges；9 first counterbores；10 second counterbores；11 straight thread holes；12 second Outer screws.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with drawings and Examples pair
Cylinder of the invention and compressor are further elaborated.It should be appreciated that specific embodiment described herein is only used to
The present invention is explained, is not intended to limit the present invention.
As shown in Figure 1, 2, 3, a kind of cylinder 1, is threaded through hole 2 on cylinder 1；
Tapped through hole 2 includes in first tiltedly tiltedly screwed hole 4 and straight thread hole 11 in screwed hole 3, second；
Interior oblique screwed hole is that endoporus is tapered screwed hole.
Oblique screwed hole 4 is separately positioned on the two ends of tapped through hole 2 in oblique screwed hole 3 and second in first, and by straight thread
Hole 11 connects；
First Outer screw 5 passes through oblique screwed hole 3 in first and is arranged on tapped through hole 2 threadably, uses
It is fixed on cylinder 1 in by upper flange 6 and muffler 7；
Second Outer screw 12 passes through oblique screwed hole 4 in second and is arranged on tapped through hole 2 threadably, uses
It is fixed on cylinder 1 in by lower flange 8.
Due to when the first Outer screw 5 and the second Outer screw 12 are tightened on tapped through hole 2, outside 2 first
The rigidity of the Outer screw 12 of screw 5 and second and tapped through hole 2 and deformation are of different sizes, and load can be produced to be enclosed on spiral shell text tooth individual
The situation of skewness, using in first tiltedly in screwed hole 3 and second tiltedly screwed hole 4 be separately positioned on the two ends of tapped through hole 2 this
The frame mode of sample, former circle ridges that load can be made larger are easily deformed, therefore load is moved to straight thread hole 11,
Increase the load of a few circle ridges below, the load of former circle ridges is relative to be reduced, so as to improve load skewness
Problem（The load that ridge screws portion's first lap is maximum, accounts for the 1/3 of full payload）, make the first Outer screw 5 screws power
The uniform load distribution produced to tapped through hole 2, therefore the deflection of cylinder bore is reduced, improve centering precision, it is ensured that
Pump housing smooth movements.
Used as a kind of embodiment, the inner bevel degree of oblique screwed hole 3 is 5 ° to 25 ° in first.
The inner bevel degree of oblique screwed hole 3 refers to the flank of oblique screwed hole 3 and the center line of tapped through hole 2 in first in first
Between angle, the angle in the range of this, can bring convenience the processing and fabricating of oblique screwed hole 3 in first at 5 ° to 25 °,
Can be more prone to the screw-in of the first Outer screw 5 simultaneously.
As shown in figure 3, used as a kind of embodiment, one end away from straight thread 11 of oblique screwed hole 3 is set in first
First counterbore 9；
First counterbore 9 is rectangle counterbore, and the nut with diameter greater than the first Outer screw 5 diameter.
The nut lower plane of the first Outer screw 5 is overlayed first when first Outer screw 5 can so screwed
On the bottom surface of counterbore 9, make the first Outer screw 5 relatively reliable with the connection of cylinder 1, it is to avoid to occur being revolved because of the first Outer screw 5
It is tight not in place or the first Outer screw 5 loosens and cylinder 1 is occurred with the assembling of external upper flange 6 and muffler 7 caused by abrasion
The phenomenon of loosening, it is ensured that assembling quality.
Used as a kind of embodiment, the depth of oblique screwed hole 3 is 2 to 5 pitch in first.
The depth of oblique screwed hole 3 is defined to 2 to 5 distances of pitch in first, both can guarantee that and has accomplished load effectively
Moved to the direction of straight thread hole 11, while can guarantee that the first Outer screw 5 screws in the depth long enough in straight thread hole 11 again, so that
Ensure that the reliability between the first Outer screw 5 and tapped through hole 2 is fixed.Make to be more firmly mounted.
Used as a kind of embodiment, the inner bevel degree of oblique screwed hole 4 is 5 ° to 25 ° in second.
The inner bevel degree of oblique screwed hole 4 refers to the flank of oblique screwed hole 4 and the center line of tapped through hole 2 in second in second
Between angle, the angle in the range of this, can bring convenience the processing and fabricating of oblique screwed hole 4 in second at 5 ° to 25 °,
Can be more prone to the screw-in of the second Outer screw 12 simultaneously.
As shown in figure 3, used as a kind of embodiment, one end away from straight thread hole 11 of oblique screwed hole 4 sets in second
Put the second counterbore 10；
Second counterbore 10 is rectangle counterbore, and the nut with diameter greater than the second Outer screw 12 diameter.
The nut lower plane of the second Outer screw 12 is overlayed when second Outer screw 12 can so screwed
On the bottom surface of two counterbores 10, make the second Outer screw 12 relatively reliable with the connection of cylinder 1, it is to avoid to occur because of the second Outer screw
12 screw not in place or the second Outer screw 12 loosens and makes assembling between cylinder 1 and lower flange 8 occur loosening caused by abrasion
Phenomenon, it is ensured that assembling quality.
Used as a kind of embodiment, the depth of oblique screwed hole 4 is 2 to 5 pitch in second.
The depth of oblique screwed hole 4 is defined to 2 to 5 distances of pitch in second, both can guarantee that and has accomplished load effectively
Moved to the direction of straight thread hole 11, while can guarantee that the second Outer screw 12 screws in the depth long enough in straight thread hole 11 again, from
And ensure that the reliability between the second Outer screw 12 and tapped through hole 2 is fixed.Make to be more firmly mounted.
A kind of compressor, including above example cylinder 1.
The cylinder 1 of the present embodiment have with cylinder identical technical characteristic described in above example, it is therefore no longer detailed one by one
State, can so make the operation of compressor more reliable.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Shield scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of cylinder, it is characterised in that：
Through hole is threaded on the cylinder；
The tapped through hole includes oblique screwed hole in first, oblique screwed hole and straight thread hole in second；
In described first in oblique screwed hole and described second oblique screwed hole be separately positioned on the tapped through hole two ends and with it is described
Straight thread hole connects；
First Outer screw passes sequentially through oblique screwed hole and straight thread hole in described first and is arranged on institute threadably
Cylinder is stated, for external upper flange, muffler to be fixed on into the cylinder；
Second Outer screw passes sequentially through oblique screwed hole and straight thread hole in described second and is arranged on institute threadably
State on cylinder, for outside lower flange to be fixed on into the cylinder.
2. cylinder according to claim 1, it is characterised in that：
The inner bevel degree of oblique screwed hole is 5 ° to 25 ° in described first.
3. cylinder according to claim 2, it is characterised in that：
One end away from the straight thread hole of oblique screwed hole sets the first counterbore in described first；
First counterbore be rectangle counterbore, and the nut with diameter greater than first Outer screw diameter.
4. cylinder according to claim 3, it is characterised in that：
The depth of oblique screwed hole is 2 to 5 pitch in described first.
5. the cylinder according to Claims 1-4 any one, it is characterised in that：
The inner bevel degree of oblique screwed hole is 5 ° to 25 ° in described second.
6. cylinder according to claim 5, it is characterised in that：
One end away from the straight thread hole of oblique screwed hole sets the second counterbore in described second；
Second counterbore be rectangle counterbore, and the nut with diameter greater than second Outer screw diameter.
7. cylinder according to claim 6, it is characterised in that：
The depth of oblique screwed hole is 2 to 5 pitch in described second.
8. a kind of compressor, it is characterised in that：
Including the cylinder described in claim 1 to 7 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310712489.0A CN104728112B (en) | 2013-12-20 | 2013-12-20 | Cylinder and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310712489.0A CN104728112B (en) | 2013-12-20 | 2013-12-20 | Cylinder and compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104728112A CN104728112A (en) | 2015-06-24 |
| CN104728112B true CN104728112B (en) | 2017-05-31 |
Family
ID=53452374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310712489.0A Active CN104728112B (en) | 2013-12-20 | 2013-12-20 | Cylinder and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104728112B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1991178A (en) * | 2005-12-27 | 2007-07-04 | 三菱电机株式会社 | Double-cylinder rotary sealing type compressor and manufacturing method thereof |
| CN101806304A (en) * | 2009-12-31 | 2010-08-18 | 珠海格力电器股份有限公司 | Rotary compressor with axial thrust of crankshaft |
| CN202391740U (en) * | 2011-07-22 | 2012-08-22 | 安徽美芝精密制造有限公司 | Rotary compressor |
| CN203023058U (en) * | 2012-12-04 | 2013-06-26 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN203670212U (en) * | 2013-12-20 | 2014-06-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Air cylinder and compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005054712A (en) * | 2003-08-06 | 2005-03-03 | Matsushita Electric Ind Co Ltd | Hermetically sealed compressor |
-
2013
- 2013-12-20 CN CN201310712489.0A patent/CN104728112B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1991178A (en) * | 2005-12-27 | 2007-07-04 | 三菱电机株式会社 | Double-cylinder rotary sealing type compressor and manufacturing method thereof |
| CN101806304A (en) * | 2009-12-31 | 2010-08-18 | 珠海格力电器股份有限公司 | Rotary compressor with axial thrust of crankshaft |
| CN202391740U (en) * | 2011-07-22 | 2012-08-22 | 安徽美芝精密制造有限公司 | Rotary compressor |
| CN203023058U (en) * | 2012-12-04 | 2013-06-26 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN203670212U (en) * | 2013-12-20 | 2014-06-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Air cylinder and compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104728112A (en) | 2015-06-24 |
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