CN203756538U - Rotating compressor and crankshaft thereof - Google Patents
Rotating compressor and crankshaft thereof Download PDFInfo
- Publication number
- CN203756538U CN203756538U CN201420103721.0U CN201420103721U CN203756538U CN 203756538 U CN203756538 U CN 203756538U CN 201420103721 U CN201420103721 U CN 201420103721U CN 203756538 U CN203756538 U CN 203756538U
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- China
- Prior art keywords
- eccentric part
- oil outlet
- rotary compressor
- bent axle
- oil
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Abstract
The utility model discloses a rotating compressor and a crankshaft thereof. The crankshaft for the rotating compressor comprises a body and an eccentric part, wherein a center oil hole which extends along axial direction is formed in the body; the eccentric part is sleeved on the body, an inclined oil outlet surface is formed on the eccentric part, an oil outlet hole is formed in the oil outlet surface, and the oil outlet hole and the center oil hole are communicated. According to the crankshaft for the rotating compressor provided by the utility model, the oil outlet surface which is obliquely arranged is formed on the eccentric part, the oil outlet hole which is communicated with the center oil hole is formed in the oil outlet surface, lubricating oil from the oil outlet hole preferably enters the space between the eccentric part and the piston, the lubricating oil volume of the eccentric part is increased, a lubricating condition between the eccentric part and the piston, and among the upper end surface and lower end surface of the eccentric part and corresponding bearings are improved, the frictional loss is reduced, the work efficiency of the rotating compressor is improved, and the service life of the rotating compressor is prolonged.
Description
Technical field
The utility model relates to art of refrigeration units, especially relates to a kind of rotary compressor and bent axle thereof.
Background technique
In correlation technique, point out, when compressor operating, between eccentric part and piston and between the two ends up and down of eccentric part and the surface of contact of bearing, can produce larger frictional force, after long-play, bent axle and piston, bent axle and bearing surface wear and tear, thereby increased motor load, the performance of compressor is reduced.
Model utility content
The utility model is intended at least solve one of technical problem existing in prior art.For this reason, an object of the present utility model is to propose a kind of bent axle for rotary compressor, and the described bent axle for rotary compressor increases the lubricants capacity of eccentric part, thereby has reduced wearing and tearing, has improved the performance of rotary compressor.
Another object of the present utility model is to propose a kind of rotary compressor with above-mentioned bent axle.
The bent axle for rotary compressor according to the utility model first aspect, comprising: body, is formed with on described body along its axially extended center oilhole; And eccentric part, described eccentric part is set on described body, is formed with the pasta that of inclination on wherein said eccentric part, described in go out on pasta to be formed with oil outlet, described oil outlet is communicated with described center oilhole.
According to the bent axle for rotary compressor of the present utility model, by the pasta that goes out being in tilted layout is set on eccentric part, and going out the oil outlet that on pasta, setting communicates with center oilhole, from oil outlet, lubricant oil out can enter between eccentric part and piston better, the lubricants capacity of eccentric part is increased, improve between eccentric part and piston and the upper-end surface of eccentric part, lubricating condition between lower end surface and corresponding bearing, reduce frictional loss, thereby improved the working efficiency of rotary compressor, extended the working life of rotary compressor.
Alternatively, described oil outlet and described center oilhole are circular hole, and the diameter of described oil outlet is d, and the diameter of described center oilhole is D, and wherein, d/D is configured to: 0.1≤d/D < 1.
Further, described oil outlet is formed on the side away from described center oilhole of described eccentric part.
Alternatively, described oil outlet is a plurality of and described a plurality of oil outlets being circumferentially spaced apart from each other along described center oilhole.
Alternatively, the angle between the central axis of described oil outlet and the central axis of described body is α, and wherein, described angle α is configured to: 90 ° of 0 ° of < α <.
Alternatively, described in, going out pasta is extended to form by the upper-end surface of described eccentric part and at least part of inclination at least one surface in lower end surface.
Particularly, described in go out pasta and be two and described two and go out on the upper-end surface and lower end surface that pasta is respectively formed at described eccentric part, described two go out on pasta, to be all formed with described oil outlet.
Further, on described body and described eccentric part, be formed with respectively the oil supply hole radially extending along it, described oil supply hole is communicated with described center oilhole.
Alternatively, to be a plurality of and described a plurality of eccentric parts be arranged along the axial each interval of described body described eccentric part.
According to the rotary compressor of the utility model second aspect, comprise the bent axle for rotary compressor according to the above-mentioned first aspect of the utility model.
Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination obviously and is easily understood becoming embodiment's description, wherein:
Fig. 1 is according to the schematic diagram of the utility model embodiment's the bent axle for rotary compressor;
Fig. 2 is the sectional drawing along A-A line in Fig. 1;
Fig. 3 is the stereogram of the bent axle shown in Fig. 1;
Fig. 4 is according to the schematic diagram of another embodiment's of the utility model bent axle;
Fig. 5 is according to the schematic diagram of another embodiment's of the utility model bent axle.
Reference character:
100: bent axle;
1: body; 11: center oilhole; 12: oil supply hole;
2: eccentric part; 21: oil outlet; 22: the shaft shoulder; S: go out pasta.
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.Below by the embodiment who is described with reference to the drawings, be exemplary, only 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 ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axially ", " radially ", orientation or the position relationship of indications 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, rather than device or the element of indication 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 description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more.
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 for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
Below with reference to Fig. 1-Fig. 5, describe according to the utility model embodiment's the bent axle 100 for rotary compressor, bent axle 100 can be for rotary compressor for example in single cylinder rotary compressor.In description below the application, take bent axle 100 for rotary compressor for example in single cylinder rotary compressor as example describes.Certainly, those skilled in the art will recognize that according to bent axle 100 of the present utility model can also the rotary compressor for other types in, such as twin-tub rotation-type compressor or multi-cylinder rotary compressor etc.
As shown in Figure 1-Figure 3, the bent axle 100 for rotary compressor according to the utility model first aspect embodiment, comprises body 1 and eccentric part 2.
On body 1, be formed with along its axially extended center oilhole 11.Eccentric part 2 is set on body 1.For example, in the example of Fig. 1 and Fig. 2, the shape of cross section of center oilhole 11 is circular, the central axes of the central axis of center oilhole 11 and body 1, eccentric part 2 is set on the outer circumferential face of body 1 prejudicially, now the central axis of the central axis of eccentric part 2 and body 1 is spaced apart from each other, do not overlap, alternatively, eccentric part 2 is one-body molded with body 1, the rotary compressor for example piston of single cylinder rotary compressor (scheming not shown) can be set on the outer circumferential face of eccentric part 2, thereby bent axle 100 drives eccentric part 2 to rotate, eccentric part 2 and then drive piston rotation to compress with the medium in the compression chamber of rotary compressor such as refrigeration agent etc.Certainly, the utility model is not limited to this, and the shape of center oilhole 11 and arrangement etc. can also be according to actual requirement settings, to meet better actual requirement.
Wherein, what on eccentric part 2, be formed with inclination goes out pasta S, goes out on pasta S and is formed with oil outlet 21, and oil outlet 21Yu center oilhole 11 is communicated with.With reference to Fig. 1-Fig. 3, going out pasta S can be extended to form by the upper-end surface of eccentric part 2 and at least part of inclination at least one surface in lower end surface, for example, going out pasta S can be outwards inclined upwardly by least part of surface of the lower end surface of eccentric part 2 and extend and form, as shown in Figure 2, now go out between pasta S and the lower end surface of eccentric part 2 and there is certain angle, one end of oil outlet 21 (for example, upper end in Fig. 3) be positioned on pasta S, the other end (for example, lower end in Fig. 3) be communicated with center oilhole 11, wherein, center oilhole 11 runs through the bottom surface of body 1, during rotary compressor operation, rotation along with bent axle 100, the bottom-up inflow of lubricant oil center oilhole 11 in the oil sump of rotary compressor bottom also flows between eccentric part 2 and piston by oil outlet 21, and between the bottom surface of eccentric part 2 and the upper surface of the supplementary bearing of rotary compressor, guaranteed that between eccentric part 2 and piston and between the bottom surface of eccentric part 2 and supplementary bearing, fuel feeding is stable, lubricating condition improves, thereby reduced friction, improved the performance of rotary compressor.It should be noted that, direction " outward " can be understood as the direction away from body 1 center, and its contrary direction is defined as " interior ", towards the direction at body 1 center.
Going out pasta S is two, and two go out on the upper-end surface and lower end surface that pasta S is respectively formed at eccentric part 2, and two go out on pasta S, to be all formed with oil outlet 21.Particularly, with reference to Fig. 5, each goes out on pasta S, to be formed with respectively an oil outlet 21, one end of two oil outlets 21 is communicated with center oilhole 11, what the other end ran through respectively the top of eccentric part 2 and bottom goes out pasta S, rotary compressor is single cylinder rotary compressor when work for example, rotation along with bent axle 100, lubricant oil in rotary compressor oil sump can pass through center oilhole 11, two oil outlets 21 flow to respectively the bottom surface of end face and the main bearing of eccentric part 2, between the bottom surface of eccentric part 2 and the end face of supplementary bearing, eccentric part 2 and main bearing have been guaranteed, the stability of fuel feeding between supplementary bearing, lubricating condition is further improved, thereby further reduced friction, and then further improved the performance of rotary compressor.Further, two oil outlets 21 are symmetrical up and down about the central horizontal face of eccentric part 2.
Here, it should be noted that, on eccentric part 2, be only formed with one while going out pasta S, oil outlet 21 can be for one or more, now one or more oil outlets 21 are only formed on this to go out pasta S upper, or while being formed with a plurality of pasta S of going out on eccentric part 2, oil outlet 21 can be for a plurality of, now a plurality of oil outlets 21 can be respectively formed at a plurality of pasta S of going out above, and for example a plurality of oil outlets 21 are respectively formed on the upper-end surface and lower end surface of eccentric part 2.
According to the utility model embodiment's the bent axle 100 for rotary compressor, by on eccentric part 2, arrange be in tilted layout go out pasta S, and going out the oil outlet 21 that on pasta S, setting communicates with center oilhole 11, from oil outlet 21, lubricant oil out can enter between eccentric part 2 and piston better, the lubricants capacity of eccentric part 2 is increased, improve between eccentric part 2 and piston and the upper-end surface of eccentric part 2, lubricating condition between lower end surface and corresponding bearing, reduce frictional loss, thereby improved the working efficiency of rotary compressor, extended the working life of rotary compressor.
In an embodiment of the present utility model, oil outlet 21He center oilhole 11 is circular hole, and the diameter of oil outlet 21 is d, and the diameter of center oilhole 11 is D, and wherein, d/D is configured to:
0.1≤d/D＜1。
The size of oil outlet 2121 diameters is directly related with oil pump capacity, the rotary compressor of corresponding different displacements, and when the size of oil outlet 2121 meets 0.1≤d/D < 1, requirement lubricated, sealing that oil pump capacity meets.Alternatively, oil outlet 21He center oilhole 11 can also be slotted eye, long-round-shape hole or polygonal hole etc.
Alternatively, oil outlet 21 is formed on the side away from center oilhole 11 of eccentric part 2.As shown in Figure 4, the edge placement of oil outlet 21 contiguous eccentric parts 2, and the distant side between the central axis of eccentric part 2 Yu center oilholes 11 (for example, upside in Fig. 4), now the central axis of oil outlet 21He center oilhole 11 lays respectively at the both sides of the central axis of eccentric part 2.
Alternatively, oil outlet 21 is a plurality of, and being circumferentially spaced apart from each other of a plurality of oil outlet 21Yan center oilhole 11.Further, the central point of center oilhole 11 of take is made XY axis coordinate system as initial point, three oil outlets 21 have for example been shown in the example of Fig. 4, upwards being spaced apart from each other in week of three oil outlet 21 center oilholes 11, one of them oil outlet 21 is positioned in Y-axis, two other oil outlet 21 lays respectively at the left and right sides of above-mentioned one of them oil outlet 21, now these two oil outlets 21 are positioned at first quartile and second quadrant of XY axis coordinate system, when bent axle 100 turns clockwise for indicating in Fig. 4, for example be positioned at the oil outlet 21(of first quartile, the oil outlet 21 on right side in Fig. 4) oil pump capacity is more, the lubricant oil now flowing out from this oil outlet 21 can flow between eccentric part 2 and piston better, lubrication effect is better.It will be appreciated that, the quantity of oil outlet 21, shape, size and arrangement etc. can also be arranged according to actual requirement, to meet better actual requirement.
In an embodiment of the present utility model, the angle between the central axis of oil outlet 21 and the central axis of body 1 is α, and wherein, angle α is configured to:
0°＜α＜90°。
For example, in the example of Fig. 2, going out pasta S is the working surface that eccentric part 2 tilts, the straight hole of oil outlet 21 for being in tilted layout, now the central axis of oil outlet 21 forms straight line, the central axis shape of the central axis of oil outlet 21 and body 1 has a certain degree, guarantee one end (example is upper end as shown in Figure 3) going out on pasta S at eccentric part 2 of oil outlet 21, the other end of oil outlet 21 (example is lower end as shown in Figure 3) communicates with center oilhole 11, so just forms Liao Cong center oilhole 11 to an oil supply gallery of eccentric part 2.Certainly, in other examples of the present utility model, the central axis of oil outlet 21 can also form bending or be bent into curve such as the camber line of definite shape, broken line etc., correspondingly, oil outlet 21 is bent hole or arcuate socket, and the pasta S that goes out that the lubricant oil in Yi Jiang center oilhole 11 is directed on eccentric part 2 gets final product (scheming not shown).In some examples more of the present utility model, oil outlet 21 can also be configured to along long-pending change (the scheming not shown) of its axial cross section.
In embodiments more of the present utility model, the upper-end surface of eccentric part 2 or one of them surface in lower end surface are provided with the shaft shoulder 22, go out another surface that pasta S is formed on eccentric part 2, as shown in Figure 3.For example, in the example of Fig. 3, the shaft shoulder 22 is located on the upper-end surface of eccentric part 2, and oil outlet 21 is formed on going out on pasta S of eccentric part 2 lower end surfaces.
Further, be formed with respectively the oil supply hole 12 radially extending along it on body 1 and eccentric part 2, oil supply hole 12Yu center oilhole 11 is communicated with.As shown in Figure 3 and Figure 5, oil supply hole 12 stretches out along the radial level of eccentric part 2, the inner of oil supply hole 12 communicates with center oilhole 11, the periphery wall of eccentric part 2 is run through in the outer end of oil supply hole 12, when eccentric part 2 drives piston rotation, lubricant oil in oil sump can enter between the periphery wall of eccentric part 2 and the inner circle wall of piston by center oilhole 11 and oil supply hole 12, thereby reduces the friction of eccentric part 2 and piston.
During bent axle 100 rotation, lubricant oil is sent to by center oilhole 11 and oil supply hole 12 part that the periphery wall of body 1 contacts with the inner circle wall of main bearing, supplementary bearing, thereby can reduce the friction of body 1 and main bearing, supplementary bearing.Alternatively, oil supply hole 12 is a plurality of, and a plurality of oil supply hole 12 is spaced apart from each other and is formed on body 1.It will be appreciated that, the quantity of oil supply hole 12 and arrangement can be according to actual requirement settings, to better meet actual requirement.
Alternatively, eccentric part 2 is arranged for the axial each interval of a plurality of and a plurality of eccentric parts 2 along body 1.With reference to Fig. 2, body 1 is provided with 2, two eccentric parts 2 of two eccentric parts and is spaced apart from each other on above-below direction, and this bent axle 100 can be in twin-tub rotation-type compressor, can be respectively provided to a few oil outlet 21 on each eccentric part 2.
According to the utility model second aspect embodiment's rotary compressor (scheming not shown), comprise the bent axle 100 for rotary compressor according to the above-mentioned first aspect embodiment of the utility model.
In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " 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, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiments or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present utility model is limited by claim and equivalent thereof.
Claims (10)
1. for a bent axle for rotary compressor, it is characterized in that, comprising:
Body, is formed with on described body along its axially extended center oilhole; With
Eccentric part, described eccentric part is set on described body, is formed with the pasta that of inclination on wherein said eccentric part, described in go out on pasta to be formed with oil outlet, described oil outlet is communicated with described center oilhole.
2. the bent axle for rotary compressor according to claim 1, is characterized in that, described oil outlet and described center oilhole are circular hole, and the diameter of described oil outlet is d, and the diameter of described center oilhole is D,
Wherein, d/D is configured to:
0.1≤d/D＜1。
3. the bent axle for rotary compressor according to claim 1, is characterized in that, described oil outlet is formed on the side away from described center oilhole of described eccentric part.
4. the bent axle for rotary compressor according to claim 3, is characterized in that, described oil outlet is a plurality of and described a plurality of oil outlets being circumferentially spaced apart from each other along described center oilhole.
5. the bent axle for rotary compressor according to claim 1, is characterized in that, the angle between the central axis of described oil outlet and the central axis of described body is α, and wherein, described angle α is configured to:
0°＜α＜90°。
6. according to the bent axle for rotary compressor described in any one in claim 1-5, it is characterized in that, describedly go out pasta and be two and described two and go out on the upper-end surface and lower end surface that pasta is respectively formed at described eccentric part, described two go out on pasta, to be all formed with described oil outlet.
7. the bent axle for rotary compressor according to claim 1, is characterized in that, described in go out pasta and extended to form by the upper-end surface of described eccentric part and at least part of inclination at least one surface in lower end surface.
8. the bent axle for rotary compressor according to claim 1, is characterized in that, on described body and described eccentric part, is formed with respectively the oil supply hole radially extending along it, and described oil supply hole is communicated with described center oilhole.
9. the bent axle for rotary compressor according to claim 1, is characterized in that, to be a plurality of and described a plurality of eccentric parts be arranged along the axial each interval of described body described eccentric part.
10. a rotary compressor, is characterized in that, comprises according to the bent axle for rotary compressor described in any one in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420103721.0U CN203756538U (en) | 2014-03-06 | 2014-03-06 | Rotating compressor and crankshaft thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420103721.0U CN203756538U (en) | 2014-03-06 | 2014-03-06 | Rotating compressor and crankshaft thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756538U true CN203756538U (en) | 2014-08-06 |
Family
ID=51251820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420103721.0U Expired - Fee Related CN203756538U (en) | 2014-03-06 | 2014-03-06 | Rotating compressor and crankshaft thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864049A (en) * | 2015-02-06 | 2016-08-17 | 三菱电机株式会社 | Hermetically sealed compressor |
-
2014
- 2014-03-06 CN CN201420103721.0U patent/CN203756538U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864049A (en) * | 2015-02-06 | 2016-08-17 | 三菱电机株式会社 | Hermetically sealed compressor |
| CN105864049B (en) * | 2015-02-06 | 2019-04-02 | 三菱电机株式会社 | Hermetic type 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20200306 |