CN204738931U - Piston and have its rotary compressor - Google Patents
Piston and have its rotary compressor Download PDFInfo
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- CN204738931U CN204738931U CN201520395660.4U CN201520395660U CN204738931U CN 204738931 U CN204738931 U CN 204738931U CN 201520395660 U CN201520395660 U CN 201520395660U CN 204738931 U CN204738931 U CN 204738931U
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- utility
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Abstract
The utility model discloses a piston and have its rotary compressor, the piston includes: the first sub - piston of columniform, be equipped with the first mounting hole that runs through its height on the first sub - piston, the sub - piston of columniform second, be equipped with on the sub - piston of second and run through its high second mounting hole, the sub - piston of second is established the bottom of first sub - piston just first mounting hole with the second mounting hole is used for installing the bent axle mounting hole of bent axle relatively with the constitution, wherein, first sub - piston with in the sub - piston of second at least one the orientation each other be equipped with the recess on the surface, the recess constitution subtracts heavy cavity. According to the utility model discloses the piston can improve the amount of deflection of bent axle at least to a certain extent and warp, can also alleviate the weight that is used for balanceing bent axle eccentric moment's balancing piece.
Description
Technical field
The utility model relates to compressor field, especially relates to a kind of piston and has the rotary compressor of this piston.
Background technique
In correlation technique, after the flat high efficiency of compressor (namely cylinder bore diameter increases, and highly reduces) design, when the discharge capacity of compressor is constant, piston weight increases relatively, causes the problem that equilibrium block weight increases and bent axle deflection deformation worsens.
Model utility content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model proposes a kind of piston, the lighter in weight of this piston, the deflection deformation of bent axle can be improved at least to a certain extent, the weight of the equilibrium block for balance crankshaft eccentric moment can also be alleviated, and then the functional reliability of piston and bent axle can be improved.
According to piston of the present utility model, comprising: columniform first sub-piston, described first sub-piston is provided with the first mounting hole running through its height; Columniform second sub-piston, described second sub-piston is provided with the second mounting hole running through its height, described second sub-piston is located at the bottom of described first sub-piston and described first mounting hole is relative to described second mounting hole the crankshaft installed hole being configured for installing bent axle, wherein, the surface toward each other of at least one in described first sub-piston and described second sub-piston is provided with groove, and described groove forms loss of weight cavity.
According to piston of the present utility model, by arranging loss of weight cavity, effectively can alleviate the weight of piston, thus the deflection deformation of bent axle can be improved at least to a certain extent, the weight of the equilibrium block for balance crankshaft eccentric moment can also be alleviated, and then the functional reliability of piston and bent axle can be improved.In addition, by arranging the first sub-piston and the second sub-piston, piston structure can be made simple and manufacturing process is simple.
In addition, also following additional technical feature can be had according to piston of the present utility model:
In examples more of the present utility model, described first sub-piston is provided with the first groove of bottom-open, and described second sub-piston is provided with the second groove that top is opened wide, and described first groove and described second groove are configured to described loss of weight cavity jointly.
In examples more of the present utility model, described first groove is that annular and around described first sub-piston central axis circumference is arranged.
In examples more of the present utility model, described second groove is that annular and around described second sub-piston central axis circumference is arranged.
In examples more of the present utility model, described first groove is the spaced multistage curve bath of central axis circumference around described first sub-piston.
In examples more of the present utility model, described second groove is the spaced multistage curve bath of central axis circumference around described second sub-piston.
In examples more of the present utility model, the opening of described second groove is relative with the opening of described first groove.
In examples more of the present utility model, described first sub-piston is welded to connect with described second sub-piston or is connected by fastening piece.
In examples more of the present utility model, the scope of the wall thickness t limited between described loss of weight cavity and described piston outer wall face and between the internal face in described loss of weight cavity and described crankshaft installed hole is t >=1mm.
According to rotary compressor of the present utility model, comprise above-mentioned piston.The rotary compressor with above-mentioned piston can improve the deflection deformation of bent axle at least to a certain extent, can also alleviate the weight of the equilibrium block for balance crankshaft eccentric moment, and then can improve the functional reliability of piston and bent axle.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the sectional view of the piston according to the utility model embodiment;
Fig. 2 is the explosive view of the piston according to the utility model embodiment, and the second groove is annular;
Fig. 3 is the sectional view of the first sub-piston according to the piston of the utility model embodiment and the second sub-piston;
Fig. 4 is the explosive view of the piston according to the utility model embodiment, and the second groove is multistage arc.
Reference character:
Piston 100;
First sub-piston 10; First mounting hole 11; First groove 12;
Second sub-piston 20; Second mounting hole 21; Second groove 22;
Crankshaft installed hole 30; Loss of weight cavity 40; Inner circle wall 50; Periphery wall 60.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In description of the present utility model, the implication of " multiple " is two or more, unless otherwise expressly limited specifically.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can 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, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
Below with reference to Fig. 1-Fig. 4, the piston 100 according to the utility model embodiment is described.The first sub-piston 10 and the second sub-piston 20 can be comprised according to the piston 100 of the utility model embodiment.
Shown in composition graphs 2 and Fig. 4, first sub-piston 10 and the second sub-piston 20 are cylindrical, and first sub-piston 10 be provided with the first mounting hole 11 of the height running through the first sub-piston 10, second sub-piston 20 is provided with the second mounting hole 21 of the height running through the second sub-piston 20, second sub-piston 20 is located at the bottom of the first sub-piston 10, and the first mounting hole 11 is relative to the second mounting hole 21 to be configured for the crankshaft installed hole 30 of installing bent axle.Wherein, as depicted in figs. 1 and 2, the surface toward each other of at least one in the first sub-piston 10 and the second sub-piston 20 is provided with groove, and groove forms loss of weight cavity 40.Be understandable that, groove can only be arranged on the first sub-piston 10, and the second sub-piston 20 can closed pockets; Or groove can only be arranged on the second sub-piston 20, the first sub-piston 10 can closed pockets; Or groove can be arranged on the first sub-piston 10 and the second sub-piston 20 simultaneously, the groove on the first sub-piston 10 and the second sub-piston 20 forms loss of weight cavity 40 jointly.By arranging loss of weight cavity 40, effectively can alleviate the weight of piston 100, thus the deflection deformation of bent axle can be improved at least to a certain extent, the weight of the equilibrium block for balance crankshaft eccentric moment can also be alleviated, and then the functional reliability of piston 100 and bent axle can be improved.
Thus, according to the piston 100 of the utility model embodiment, by arranging loss of weight cavity 40, effectively can alleviate the weight of piston 100, thus the deflection deformation of bent axle can be improved at least to a certain extent, the weight of the equilibrium block for balance crankshaft eccentric moment can also be alleviated, and then the functional reliability of piston 100 and bent axle can be improved.In addition, by arranging the first sub-piston 10 and the second sub-piston 20, piston 100 structure can be made simple and manufacturing process is simple.
In examples more of the present utility model, as shown in Figures 2 and 3, the sub-piston 20 of first groove 12, second that the first sub-piston 10 can be provided with bottom-open is provided with the second groove 22, first groove 12 of opening wide at top and the second groove 22 is configured to loss of weight cavity 40 jointly.By all arranging groove on the first sub-piston 10 and the second sub-piston 20, the weight of piston 100 can be alleviated substantially, thus effectively can improve the deflection deformation of bent axle, and alleviating the weight of the equilibrium block on bent axle.
Alternatively, the first groove 12 can be annular, and the first groove 12 is arranged around the central axis circumference of the first sub-piston 10.That is, the first groove 12 being arranged on the first sub-piston 10 is one and ringwise.But the utility model is not limited to this, alternatively, the first groove 12 can be the spaced multistage curve bath of central axis circumference around the first sub-piston 10.
Alternatively, as shown in Figure 2, the second groove 22 can be annular, and the second groove 22 is arranged around the central axis circumference of the second sub-piston 20.That is, the second groove 22 be arranged on the second sub-piston 20 can be one and ringwise.But the utility model is not limited to this, alternatively, as shown in Figure 4, the second groove 22 can be the spaced multistage curve bath of central axis circumference around the second sub-piston 20.
It should be noted that, the deployment scenarios mutual noninterference of the deployment scenarios of the first groove 12 of the above-mentioned first sub-piston 10 and the second groove 22 of the second sub-piston 20.Such as, when the first groove 12 is annular, the second groove 22 can be annular or the multistage curve bath around the distribution of central axis circumference.When the second groove 22 is annular, the first groove 12 can be annular or the multistage curve bath around the distribution of central axis circumference.
Alternatively, as shown in figures 1 and 3, the opening of the second groove 22 can be relative with the opening of the first groove 12.But the utility model is not limited to this, the opening of the first groove 12 and the opening of the second groove 22 can be staggered setting.It should be noted that, the opening of the first groove 12 is relative with the opening of the second groove 22 or be staggered to arrange and all can form loss of weight cavity 40.
Alternatively, the first sub-piston 10 can be connected with welding or be connected by fastening piece with the second sub-piston 20.As shown in Figure 4, piston 100 can adopt fastening piece to be fixedly connected with.By to be welded to connect or the first sub-piston 10 that fastening piece connects and the second sub-piston 20 can ensure the structural strength of piston 100.
Be understandable that, first sub-piston 10 is welded to connect with the second sub-piston 20 or fastening piece be connected after can carry out the technology mode such as roughing, fine finishing the vestige welded or the technique such as riveted joint stays is removed, form the high-precision piston structure that finally can be applicable to rotary compressor.
In concrete examples more of the present utility model, the scope of the wall thickness t limited between loss of weight cavity 40 and piston 100 outer wall and between loss of weight cavity 40 and the internal face of mounting hole can be t >=1mm.The wall limited between loss of weight cavity 40 and piston 100 outer wall refers to i.e. periphery wall 60 shown in Fig. 1, the wall limited between the internal face in loss of weight cavity 40 and crankshaft installed hole 30 refers to i.e. inner circle wall 50 shown in Fig. 1, that is, the wall thickness t of inner circle wall 50 and periphery wall 60 can meet t >=1mm, thus can ensure the structural strength of piston 100.Wherein, the wall thickness of inner circle wall 50 can be identical with the wall thickness of periphery wall 60, also can be different.When the wall thickness of inner circle wall 50 is different with the wall thickness of periphery wall 60, as long as the wall thickness of the less wall of wall thickness meets t >=1mm.Further, the wall thickness forming the roof of the first sub-piston 10 can meet t >=1mm, and the wall thickness forming the diapire of the second sub-piston 20 can meet t >=1mm.
According to the rotary compressor of the utility model embodiment, comprise the piston 100 of above-described embodiment.The rotary compressor with the piston 100 of above-described embodiment can improve the deflection deformation of bent axle at least to a certain extent, can also alleviate the weight of the equilibrium block for balance crankshaft eccentric moment, and then can improve the functional reliability of piston 100 and bent axle.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.
Claims (10)
1. a piston, is characterized in that, comprising:
Columniform first sub-piston, described first sub-piston is provided with the first mounting hole running through its height;
Columniform second sub-piston, described second sub-piston is provided with the second mounting hole running through its height, described second sub-piston is located at the bottom of described first sub-piston and described first mounting hole is relative to described second mounting hole the crankshaft installed hole being configured for installing bent axle
Wherein, the surface toward each other of at least one in described first sub-piston and described second sub-piston is provided with groove, and described groove forms loss of weight cavity.
2. piston according to claim 1, it is characterized in that, described first sub-piston is provided with the first groove of bottom-open, and described second sub-piston is provided with the second groove that top is opened wide, and described first groove and described second groove are configured to described loss of weight cavity jointly.
3. piston according to claim 2, is characterized in that, described first groove is that annular and around described first sub-piston central axis circumference is arranged.
4. piston according to claim 2, is characterized in that, described second groove is that annular and around described second sub-piston central axis circumference is arranged.
5. piston according to claim 2, is characterized in that, described first groove is the spaced multistage curve bath of central axis circumference around described first sub-piston.
6. piston according to claim 2, is characterized in that, described second groove is the spaced multistage curve bath of central axis circumference around described second sub-piston.
7. the piston according to any one of claim 3-6, is characterized in that, the opening of described second groove is relative with the opening of described first groove.
8. piston according to claim 2, is characterized in that, described first sub-piston is welded to connect with described second sub-piston or is connected by fastening piece.
9. piston according to claim 1, is characterized in that, the scope of the wall thickness t limited between described loss of weight cavity and described piston outer wall face and between the internal face in described loss of weight cavity and described crankshaft installed hole is t >=1mm.
10. a rotary compressor, is characterized in that, comprises the piston according to any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520395660.4U CN204738931U (en) | 2015-06-09 | 2015-06-09 | Piston and have its rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520395660.4U CN204738931U (en) | 2015-06-09 | 2015-06-09 | Piston and have its rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204738931U true CN204738931U (en) | 2015-11-04 |
Family
ID=54420670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520395660.4U Expired - Fee Related CN204738931U (en) | 2015-06-09 | 2015-06-09 | Piston and have its rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204738931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879287A (en) * | 2015-06-09 | 2015-09-02 | 广东美芝制冷设备有限公司 | Piston and rotary compressor comprising same |
-
2015
- 2015-06-09 CN CN201520395660.4U patent/CN204738931U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104879287A (en) * | 2015-06-09 | 2015-09-02 | 广东美芝制冷设备有限公司 | Piston and rotary compressor comprising same |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151104 Termination date: 20190609 |