CN203906293U - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- CN203906293U CN203906293U CN201420291796.6U CN201420291796U CN203906293U CN 203906293 U CN203906293 U CN 203906293U CN 201420291796 U CN201420291796 U CN 201420291796U CN 203906293 U CN203906293 U CN 203906293U
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- CN
- China
- Prior art keywords
- rotary compressor
- cylinder
- housing
- main casing
- interference fit
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- 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.)
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Abstract
The utility model discloses a rotary compressor, which comprises a shell and a pump body, wherein the pump body is arranged in the shell; the pump body comprises a cylinder component, and a main bearing and an auxiliary bearing which are arranged above the below the cylinder component respectively; the pump body is in interference fit the shell. According to the rotary compressor, as the pump body in in interference fit the shell, poor clearance of a rotor caused by welding of the pump body and the shell can be avoided; meanwhile, the shift of the cylinder component caused by pressing of a conical pipe can be avoided and the problem that the clearance of sliding groves in the cylinder is increased caused by deformation of the cylinder is also avoided; the rotary compressor is simple in production technique and high in reliability.
Description
Technical field
The utility model relates to refrigerating field, especially relates to a kind of rotary compressor.
Background technique
The pump housing means of fixation of the rotary compressor in correlation technique, substantially there is three types: upper bearing (metal) means of fixation, cylinder means of fixation and frame means of fixation, upper bearing (metal) means of fixation in correlation technique, when after upper bearing (metal) and housing welding, occur that the bad repairing in rotor gap is more difficult, and conical pipe can cause the problem of cylinder piston-rod displacement while being pressed into.Cylinder means of fixation in correlation technique, because cylinder and housing directly weld, can cylinder deformation after welding, thus cause cylinder vane slot gap to change greatly.Frame means of fixation in correlation technique, because the pump housing is to be fixed by screws in frame, when compressor is collided in transportation process, just easily there is gap bad phenomenon in rotor gap.
Model utility content
The utility model is intended to solve at least to a certain extent one of technical problem in correlation technique.For this reason, an object of the present utility model is to propose a kind of rotary compressor, can avoid rotor gap to occur gap bad phenomenon, also can avoid causing cylinder assembly displacement because conical pipe is pressed into simultaneously, can also avoid becoming the problem such as large because cylinder deformation causes in cylinder vane slot gap.
According to rotary compressor of the present utility model, comprising: housing; The pump housing, the described pump housing is located in described housing, the described pump housing comprises cylinder assembly, main bearing and supplementary bearing, described main bearing and described supplementary bearing be located at described cylinder assembly above and below, the described pump housing and described housing interference fit.
According to rotary compressor of the present utility model, owing to being interference fit between the pump housing and housing, therefore can avoid causing rotor gap to occur gap bad phenomenon because of the welding of the pump housing and housing, also can avoid causing cylinder assembly displacement because conical pipe is pressed into simultaneously, can also avoid becoming the problem such as large because cylinder deformation causes in cylinder vane slot gap, and rotary compressor production technology is simple, reliability is high.
In addition, can also there is following additional technical characteristics according to the above-mentioned rotary compressor of the utility model:
In embodiments more of the present utility model, described main bearing and described housing interference fit.
In other embodiments of the present utility model, described supplementary bearing and described housing interference fit.
According to embodiments more of the present utility model, described cylinder assembly comprises a cylinder.
Further, described cylinder and described housing interference fit
According to other embodiments of the present utility model, described cylinder assembly comprises two cylinders and is located at the central diaphragm between described two cylinders.
Further, cylinder and described housing interference fit described at least one.
According to preferred embodiment of the present utility model, the magnitude of interference S of described interference fit
magnitude of interferencescope be 0.05mm≤S
magnitude of interference≤ 0.55mm.
According to specific embodiment of the utility model, described housing comprises: main casing, and the upper end of described main casing is opened wide, and flange is opened wide and be provided with in the lower end of described main casing, and the described flange palintrope that first stretches out from the lower end of described main casing folds down extension; Upper shell, described upper shell is located at the upper end with main casing described in capping on described main casing; Lower shell body, described lower shell body is located on described main casing, and the periphery wall of described lower shell body coordinates the lower end with main casing described in capping with the inwall of the described flange of described main casing.
Further, between the flange of described main casing and described lower shell body, be welded to connect.
Brief description of the drawings
Fig. 1 is according to the schematic diagram of an embodiment's of the utility model rotary compressor;
Fig. 2 is according to the schematic diagram of another embodiment's of the utility model rotary compressor;
Fig. 3 is according to the schematic diagram of another embodiment's of the utility model rotary compressor;
Fig. 4 is according to the schematic diagram of another embodiment's of the utility model rotary compressor;
Fig. 5 is the enlarged diagram of A part in Fig. 4.
Reference character:
Rotary compressor 100,
Housing 1, main casing 10, upper shell 11, lower shell body 12, flange 13,
The pump housing 2, cylinder assembly 20, main bearing 21, supplementary bearing 22, silencing apparatus 23,
Soldering point 3, liquid-storage container 4, conical pipe 5, motor portion 6, stator 60, rotor 61, bent axle 7.
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment who is described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of instructions such as " circumferentially " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of device or the element of instruction or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " multiple " is more than three or three, unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or integral; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
Describe according to the utility model embodiment's rotary compressor 100 below with reference to Fig. 1-Fig. 5, this rotary compressor 100 can be single cylinder rotary compressor, twin-tub rotation-type compressor or multi-cylinder rotary compressor, and wherein multi-cylinder rotary compressor refers to three cylinders or rotary compressor more than three cylinders 100.
As Figure 1-Figure 4, comprise according to the utility model embodiment's rotary compressor 100: housing 1 and the pump housing 2, wherein, the pump housing 2 is located in housing 1, the pump housing 2 comprises cylinder assembly 20, main bearing 21 and supplementary bearing 22, main bearing 21 and supplementary bearing 22 be located at cylinder assembly 20 above and below.Particularly, as Figure 1-Figure 4, in the time that rotary compressor 100 is single cylinder rotary compressor, cylinder assembly 20 comprises a cylinder, and main bearing 21 is located at the upper surface of cylinder, and supplementary bearing 22 is located at the lower surface of cylinder.In the time that rotary compressor 100 is twin-tub rotation-type compressor (scheming not shown), cylinder assembly 20 comprises two cylinders and is located at two central diaphragms between cylinder, be that cylinder assembly 20 comprises upper cylinder, lower cylinder and central diaphragm, main bearing 21 is located at the upper surface of upper cylinder, and supplementary bearing 22 is located at the lower surface of lower cylinder.In the time that rotary compressor 100 is multi-cylinder rotary compressor (scheming not shown), cylinder assembly 20 comprises multiple cylinders, between adjacent cylinder, be provided with dividing plate, main bearing 21 is located on the upper surface of the cylinder that is positioned at the top, and supplementary bearing 22 is located on the lower surface that is positioned at the cylinder of below.
What need to describe is, the pump housing 2 also comprises silencing apparatus 23 elements such as grade, rotary compressor 100 also comprises the elements such as motor portion 6, bent axle 7, liquid-storage container 4 simultaneously, motor portion 6 comprises stator 60 and is located at the rotor 61 in stator 60, outer being enclosed within on bent axle 7 of rotor 61 rotated with band dynamic crankshaft 7, and liquid-storage container 4 is communicated with cylinder assembly 20 by the conical pipe 5 being pressed in cylinder assembly 20.In the example of Fig. 1-Fig. 4, conical pipe 5 is pressed in cylinder.Also it should be noted that, the working principle of rotary compressor 100 etc. has been prior art, is not just described in detail here simultaneously.
The pump housing 2 and housing 1 interference fit.Particularly, in the example of Fig. 1 and Fig. 4, main bearing 21 and housing 1 interference fit, in the example of Fig. 2, cylinder assembly 20 comprises a cylinder, cylinder and housing 1 interference fit.In the example of Fig. 3, supplementary bearing 22 and housing 1 interference fit.In the time that rotary compressor 100 is twin-tub rotation-type compressor or multi-cylinder rotary compressor, can be at least one cylinder and housing 1 interference fit.In concrete example of the present utility model, the pump housing 2 is fixed up by mode and the housing 1 of hot jacket, utilizes the principle of expanding with heat and contract with cold, and reaches the object of interference fit.
Particularly, as Figure 1-Figure 4, in the time that one of them mode by for example hot jacket of interference fit in main bearing 21, cylinder assembly 20 and the supplementary bearing 22 of the pump housing 2 and housing 1 are fixed up, because main bearing 21 and supplementary bearing 22 do not weld with housing 1, therefore can avoid rotor gap to occur gap bad phenomenon and avoid being pressed into because of conical pipe 5 problems such as cylinder assembly 20 is shifted that cause.Because cylinder does not weld with housing 1, therefore can avoid becoming large because cylinder deformation causes vane slot gap in cylinder simultaneously.
According to the utility model embodiment's rotary compressor 100, owing to being interference fit between the pump housing 2 and housing 1, therefore can avoid causing rotor gap to occur gap bad phenomenon because the pump housing 2 and housing 1 weld, also can avoid causing cylinder assembly 20 to be shifted because conical pipe 5 is pressed into simultaneously, can also avoid becoming the problem such as large because cylinder deformation causes in cylinder vane slot gap, and rotary compressor 100 production technologies are simple, reliability is high.
In preferred embodiment of the present utility model, the magnitude of interference S of interference fit
magnitude of interferencescope be 0.05mm≤S
magnitude of interference≤ 0.55mm.Thereby ensure the pump housing 2 can with housing 1 interference fit, and ensured the stability in gap between rotor, avoid rotor gap to occur gap bad phenomenon.
In specific embodiment of the utility model, as Figure 1-Figure 4, housing 1 comprises: main casing 10, upper shell 11 and lower shell body 12.Wherein, the open at both ends up and down of main casing 10.Upper shell 11 is located at the upper end with capping main casing 10 on main casing 10, and lower shell body 12 is located at the lower end with capping main casing 10 on main casing 10.In the example of Fig. 1-Fig. 4, the pump housing 2 and lower shell body 12 interference fit, be welded to connect between main casing 10 and lower shell body 12, and main casing 10 is welded on lower shell body 12, as Figure 1-Figure 4, between main casing 10 and lower shell body 12, has soldering point 3.
Further, as shown in Figure 4 and Figure 5, the lower end of main casing 10 is provided with flange 13, and flange 13 palintrope that first stretches out from the lower end of main casing 10 folds down extension, the inwall of flange 13 coordinate with the periphery wall of lower shell body 12 and flange 13 and lower shell body 12 between be welded to connect.Thereby be convenient to being welded to connect between main casing 10 and lower shell body 12.
More specifically, as shown in Figure 5, the upper end of lower shell body 12 is provided with annular receiving groove, a part for the lower surface of flange 13 is supported on the upper surface of receiving groove, and the internal surface of flange 13 contacts with the outer side wall of receiving groove, another part of lower surface and the periphery wall of lower shell body 12 of flange 13 are welded to connect simultaneously, as shown in Figure 4 and Figure 5, between the lower surface of flange 13 and lower shell body 12, have soldering point 3.Wherein it should be noted that, above-mentioned " outwards " refer to along bent axle 7 radially away from the direction of the central axis of bent axle 7, " inwardly " refers to the direction towards the central axis of bent axle 7 along the radial direction of bent axle 7.
In the utility model, unless otherwise clearly defined and limited, First Characteristic Second Characteristic " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, First Characteristic Second Characteristic " on ", " top " and " above " but First Characteristic directly over Second Characteristic or oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " can be First Characteristic under Second Characteristic or tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And, specific features, structure, material or the feature of description can one or more embodiments in office or example in suitable mode combination.In addition,, not conflicting in the situation that, those skilled in the art can carry out combination and combination by the feature of the different embodiments that describe in this specification or example and different embodiment or example.
Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment in scope of the present utility model, amendment, replacement and modification.
Claims (10)
1. a rotary compressor, is characterized in that, comprising:
Housing;
The pump housing, the described pump housing is located in described housing, the described pump housing comprises cylinder assembly, main bearing and supplementary bearing, described main bearing and described supplementary bearing be located at described cylinder assembly above and below, the described pump housing and described housing interference fit.
2. rotary compressor according to claim 1, is characterized in that, described main bearing and described housing interference fit.
3. rotary compressor according to claim 1, is characterized in that, described supplementary bearing and described housing interference fit.
4. rotary compressor according to claim 1, is characterized in that, described cylinder assembly comprises a cylinder.
5. rotary compressor according to claim 4, is characterized in that, described cylinder and described housing interference fit.
6. rotary compressor according to claim 1, is characterized in that, described cylinder assembly comprises two cylinders and is located at the central diaphragm between described two cylinders.
7. rotary compressor according to claim 6, is characterized in that, cylinder and described housing interference fit described at least one.
8. according to the rotary compressor described in any one in claim 1-7, it is characterized in that the magnitude of interference S of described interference fit
magnitude of interferencescope be 0.05mm≤S
magnitude of interference≤ 0.55mm.
9. rotary compressor according to claim 1, is characterized in that, described housing comprises:
Main casing, the upper end of described main casing is opened wide, and flange is opened wide and be provided with in the lower end of described main casing, and the described flange palintrope that first stretches out from the lower end of described main casing folds down extension;
Upper shell, described upper shell is located at the upper end with main casing described in capping on described main casing;
Lower shell body, described lower shell body is located on described main casing, and the periphery wall of described lower shell body coordinates the lower end with main casing described in capping with the inwall of the described flange of described main casing.
10. rotary compressor according to claim 9, is characterized in that, between the flange of described main casing and described lower shell body, is welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291796.6U CN203906293U (en) | 2014-06-03 | 2014-06-03 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420291796.6U CN203906293U (en) | 2014-06-03 | 2014-06-03 | Rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906293U true CN203906293U (en) | 2014-10-29 |
Family
ID=51780576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420291796.6U Expired - Fee Related CN203906293U (en) | 2014-06-03 | 2014-06-03 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906293U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047861A (en) * | 2014-06-03 | 2014-09-17 | 广东美芝精密制造有限公司 | Rotary compressor |
-
2014
- 2014-06-03 CN CN201420291796.6U patent/CN203906293U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104047861A (en) * | 2014-06-03 | 2014-09-17 | 广东美芝精密制造有限公司 | Rotary compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20200603 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |