CN203098293U - Crankshaft and rotary compressor with same - Google Patents
Crankshaft and rotary compressor with same Download PDFInfo
- Publication number
- CN203098293U CN203098293U CN 201320019488 CN201320019488U CN203098293U CN 203098293 U CN203098293 U CN 203098293U CN 201320019488 CN201320019488 CN 201320019488 CN 201320019488 U CN201320019488 U CN 201320019488U CN 203098293 U CN203098293 U CN 203098293U
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- China
- Prior art keywords
- shaft shoulder
- rotary compressor
- bent axle
- cell body
- utility
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Abstract
The utility model discloses a crankshaft for a rotary compressor. The crankshaft comprises a body, an eccentric part and a shaft shoulder, wherein the shaft shoulder is arranged on the body; a groove body is arranged on the bottom surface of the shaft shoulder; the groove body is constructed to extend outwards to the oil inlet side of the side wall of the shaft shoulder from the oil inlet side positioned in the bottom surface of the shaft shoulder; and a notch formed in the intersection of the side wall of the shaft shoulder and the bottom surface of the shaft shoulder is formed in the oil inlet side. According to the crankshaft for the rotary compressor, the groove body is formed in the bottom surface of the shaft shoulder of the crankshaft, so that the contact area of the shaft shoulder and a corresponding bearing is reduced; and therefore, the friction can be alleviated, and the performance of the compressor is improved. In addition, the utility model also discloses a rotary compressor.
Description
Technical field
The utility model relates to technical field of refrigeration equipment, in particular to a kind of bent axle and have its rotary compressor.
Background technique
During the rotary compressor operation, bent axle rotates with motor rotor.Be provided with the oil supply gallery that is used for fuel feeding vertically in crankshaft center, the cylindrical side that bent axle contacts with bearing is provided with the oil supply hole that is communicated with oil supply gallery.During crankshaft rotating, the setting of blade because differential pressure action and bent axle bottom oil, lubricant oil is sent to the part that bearing contacts with the shaft shoulder by oil supply gallery and oil supply hole, to reduce the friction of the shaft shoulder and bearing.
When compressor operating, inhomogeneous between the shaft shoulder of bent axle and the surface of contact of supplementary bearing owing to fuel feeding, at fuel feeding after a little while, can produce bigger frictional force, behind the process long-play, bent axle and bearing surface wear and tear, and area of contact further increases, thereby increased motor load, the performance of compressor is reduced.
The model utility content
The utility model is intended to solve at least one of technical problem that exists in the prior art.
In view of this, the utility model need be provided for the bent axle of rotary compressor, has cell body on the bottom surface of the shaft shoulder, and the shaft shoulder is less with the area of contact of corresponding bearing, can reduce friction, improves the performance of compressor.Further, the utility model need provide a kind of rotary compressor with above-mentioned bent axle.
According to first aspect of the present utility model, a kind of bent axle that is used for rotary compressor is provided, comprising: body; Eccentric part; And the shaft shoulder, the described shaft shoulder is located on the described body, the bottom surface of the described shaft shoulder is provided with cell body, described cell body is configured to be extended to by the fuel-displaced side direction outside of the bottom surface that is positioned at the described shaft shoulder oil-feed side of the sidewall of the described shaft shoulder, has the gap of the intersection, bottom surface of the sidewall that is formed on the described shaft shoulder and the described shaft shoulder in described oil-feed side.
According to the bent axle that is used for rotary compressor of the present utility model, have cell body on the bottom surface of the shaft shoulder of described bent axle, make the shaft shoulder reduce with the area of contact of corresponding bearing, thus, can reduce friction, improve the performance of compressor.
The cross-section area of described gap is greater than the cross-section area of the fuel-displaced side end of described cell body.
Two sides of described cell body are to same direction bending, and opposite with the sense of rotation of described bent axle.。
The degree of depth of described cell body is less than 3mm.
The bottom surface of described cell body is configured to by the oil-feed side to inclined-plane that the degree of depth of fuel-displaced side shoals gradually.
The inclination angle of the bottom surface of described cell body is spent between 60 degree 0.
The degree of depth of described oil-feed side is smaller or equal to 3mm, describedly goes out the degree of depth on right side less than 1mm.
According to second aspect of the present utility model, a kind of ice rotary compressor is provided, described rotary compressor comprises the bent axle as the utility model the foregoing description.
Additional aspect of the present utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present utility model.
Description of drawings
Above-mentioned and/or additional aspect of the present utility model and advantage are from obviously and easily understanding becoming embodiment's the description in conjunction with following accompanying drawing, wherein:
Fig. 1 has shown the perspective view according to an embodiment's of the present utility model bent axle that is used for rotary compressor;
Fig. 2 has shown the sectional view that the line A-A among Fig. 1 is got; Fig. 3 has shown the perspective view according to another embodiment's of the present utility model bent axle that is used for rotary compressor;
Fig. 4 has shown the sectional view that the line B-B among Fig. 3 is got;
Fig. 5 has shown the elevational schematic view according to an embodiment's of the present utility model bent axle that is used for rotary compressor; And
Fig. 6 has shown the elevational schematic view according to another embodiment's of the present utility model bent axle that is used for rotary compressor.
Reference character:
100 bent axles; 10 bodies; 20 shaft shoulders; 21 bottom surfaces; 30 cell bodies; 32 fuel-displaced sides; 31 oil-feed sides; 301 gap; 40 eccentric parts.
Embodiment
Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment who is described with reference to the drawings is exemplary, only is used to explain 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 "; " vertically "; " laterally "; " on "; D score; " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", close the orientation of indications such as " outward " or position is based on orientation shown in the drawings or position relation, only be the utility model and simplification description for convenience of description, rather than the device or the element of indication or hint indication must have specific orientation, therefore orientation structure and operation with specific can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only are used to describe purpose, and can not be interpreted as indication or hint relative importance.
In description of the present utility model, need to prove that unless clear and definite regulation and qualification are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete implication of above-mentioned term in the utility model.
Shown in Fig. 1-6, the bent axle that is used for rotary compressor 100 according to embodiment of the present utility model comprises: body 10; The eccentric part 40 and the shaft shoulder 20.
Particularly, the shaft shoulder 20 can be located on the body 10, the bottom surface 21 of the shaft shoulder 20 is provided with cell body 30, cell body 30 can be configured to be extended to the outside by the fuel-displaced side 32 of the bottom surface 21 that is positioned at the shaft shoulder 20 the oil-feed side 31 of the sidewall of the shaft shoulder 20, has the gap 301 of 21 intersections, bottom surface of the sidewall that is formed on the shaft shoulder 20 and the shaft shoulder 20 in oil-feed side 31.
In other words, the shaft shoulder 20 is located on the body 10, and has the cell body 30 that is radiated 21 edges, bottom surface from inside to outside on the bottom surface 21 of the shaft shoulder 20, and the inner of cell body 30 is fuel-displaced side 32, the outer end of cell body 30 is the oil-feed side, and oil-feed side 31 is formed with gap 301 in the bottom surface 21 and the sidewall intersection of the shaft shoulder 20.
According to the embodiment's of the present utility model bent axle that is used for rotary compressor 100, have cell body 30 on the bottom surface 21 of the shaft shoulder 20 of bent axle 100, make the shaft shoulder 20 reduce with the area of contact of corresponding bearing, thus, can reduce friction, improve the performance of compressor.
As shown in Figure 1 and Figure 2, according to embodiment of the present utility model, the cross-section area of gap 301 is greater than the cross-section area of fuel-displaced side 32 ends of cell body 30.Thus, can make things convenient for lubricant oil to flow between the surface of contact of the bottom surface of the shaft shoulder 20 and bearing by cell body 30.Alternatively, 30 two sides of cell body can be to same direction bending.Thus, can make things convenient for lubricant oil to enter among the cell body 30.
According to an embodiment of the present utility model, consider that from the processing aspect for making things convenient for machining, the degree of depth of the cell body that the bottom surface of the shaft shoulder 20 is offered in the utility model can be less than 3mm.
As shown in Figure 3, Figure 4, for more effective formation dynamic pressure oil film, the cell body that the bottom surface 21 of the shaft shoulder 20 is offered can be designed to slope shape, and the inclination angle is θ, 0 °＜θ＜60 °.The groove external cylindrical surface side degree of depth is H2,0＜H2≤3mm, and the opposition side degree of depth is h, 0≤h≤1mm.In other words, the bottom surface of cell body 30 is configured to by oil-feed side 31 to inclined-plane that the degree of depth of fuel-displaced side 32 shoals gradually.The inclination angle of the bottom surface of cell body 30 can be spent between 60 degree 0.The degree of depth of oil-feed side 31 can be smaller or equal to 3mm, and the degree of depth that goes out right side 32 can be less than 1mm.
As shown in Figure 5, the cell body of offering in the bottom surface 21 of the shaft shoulder 20 according to an embodiment of the present utility model 30, its front projection border is made of four curved sections (L1, L2, L3, L4), the intersection point of curve L3 and L1 is A, the line of A point and bent axle 100 central point O is L5, L3 is α at the tangent line at A point place and the angle of L5,60 °≤α≤80 °.
Alternatively, for making things convenient for machining, as shown in Figure 6, L2 in the utility model the foregoing description and L4 are combined into a L6, promptly the cell body 30 front projection borders offered, the bottom surface 21 of the shaft shoulder 20 are made of L1, L3, three curved sections of L6.
According to embodiment's rotary compressor of the present utility model, rotary compressor comprises the described bent axle of the utility model the foregoing description.
Rotary compressor according to embodiment of the present utility model, have cell body 30 on the bottom surface 21 of the shaft shoulder 20 of the bent axle 100 of this rotary compressor, make the shaft shoulder 20 reduce, thus with the area of contact of corresponding bearing, can reduce friction, improve the performance of compressor.
In the description of this specification, concrete feature, structure, material or characteristics that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example description are contained at least one embodiment of the present utility model or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete feature, structure, material or the characteristics of description can be with the suitable manner combination 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, can carry out multiple variation, modification, replacement and modification to these embodiments under the situation that does not break away from principle of the present utility model and aim, scope of the present utility model is limited by claim and equivalent thereof.
Claims (8)
1. a bent axle that is used for rotary compressor is characterized in that, comprising:
Body; Eccentric part; And
The shaft shoulder, the described shaft shoulder is located on the described body, the bottom surface of the described shaft shoulder is provided with cell body, described cell body is configured to be extended to by the fuel-displaced side direction outside of the bottom surface that is positioned at the described shaft shoulder oil-feed side of the sidewall of the described shaft shoulder, has the gap of the intersection, bottom surface of the sidewall that is formed on the described shaft shoulder and the described shaft shoulder in described oil-feed side.
2. the bent axle that is used for rotary compressor according to claim 1 is characterized in that the cross-section area of described gap is greater than the cross-section area of the fuel-displaced side end of described cell body.
3. the bent axle that is used for rotary compressor according to claim 2 is characterized in that, two sides of described cell body are to same direction bending, and opposite with the sense of rotation of described bent axle.
4. the bent axle that is used for rotary compressor according to claim 1 is characterized in that the degree of depth of described cell body is less than 3mm.
5. the bent axle that is used for rotary compressor according to claim 4 is characterized in that, the bottom surface of described cell body is configured to by the oil-feed side to inclined-plane that the degree of depth of fuel-displaced side shoals gradually.
6. the bent axle that is used for rotary compressor according to claim 5 is characterized in that, the inclination angle of the bottom surface of described cell body is spent between 60 degree 0.
7. the bent axle that is used for rotary compressor according to claim 6 is characterized in that, the degree of depth of described oil-feed side is smaller or equal to 3mm, and the degree of depth of described fuel-displaced side is less than 1mm.
8. a rotary compressor is characterized in that, described rotary compressor comprises as each described bent axle that is used for rotary compressor among the claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320019488 CN203098293U (en) | 2013-01-14 | 2013-01-14 | Crankshaft and rotary compressor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320019488 CN203098293U (en) | 2013-01-14 | 2013-01-14 | Crankshaft and rotary compressor with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098293U true CN203098293U (en) | 2013-07-31 |
Family
ID=48849701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320019488 Expired - Fee Related CN203098293U (en) | 2013-01-14 | 2013-01-14 | Crankshaft and rotary compressor with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098293U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374880A (en) * | 2019-07-24 | 2019-10-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly and compressor |
| CN112412746A (en) * | 2019-08-23 | 2021-02-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft assembly, pump body assembly, compressor and air conditioner |
-
2013
- 2013-01-14 CN CN 201320019488 patent/CN203098293U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110374880A (en) * | 2019-07-24 | 2019-10-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly and compressor |
| CN112412746A (en) * | 2019-08-23 | 2021-02-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft assembly, pump body assembly, compressor and air conditioner |
| CN112412746B (en) * | 2019-08-23 | 2022-07-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft assembly, pump body assembly, compressor and air conditioner |
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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: 20130731 Termination date: 20200114 |