CN201696298U - Rotary compressor with eccentric crankshaft supported by lower muffler - Google Patents
Rotary compressor with eccentric crankshaft supported by lower muffler Download PDFInfo
- Publication number
- CN201696298U CN201696298U CN2010201444702U CN201020144470U CN201696298U CN 201696298 U CN201696298 U CN 201696298U CN 2010201444702 U CN2010201444702 U CN 2010201444702U CN 201020144470 U CN201020144470 U CN 201020144470U CN 201696298 U CN201696298 U CN 201696298U
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- CN
- China
- Prior art keywords
- rotary compressor
- eccentric crankshaft
- supporting spring
- lower flange
- silencing apparatus
- Prior art date
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to a rotary compressor with an eccentric crankshaft supported by a lower muffler, which belongs to the technical field of refrigeration compressors. A supporting plate is arranged at the lower end of a lower flange of the rotary compressor and is butted against the tail end surface of an eccentric crankshaft, and a lower muffler supports the supporting plate; and most of the gravity force generated by the self-weight of the eccentric crankshaft and the weight of the motor rotor arranged at the upper end of the eccentric crankshaft is born by the supporting plate, and the supporting plate is supported by the lower flange arranged below. During operation, the rotary compressor provided by the utility model avoids the current status that the contact surface between the lower thrust surface and the lower flange bears most of the gravity force, reduces the friction between the lower thrust surface and the lower flange, reduces wears of the lower thrust surface and the lower flange and prevents loosening of the eccentric crankshaft in the cylinder, so that the operation of the compressor is more stable, the noise is reduced, the reliability is enhanced, the energy efficiency is effectively improved, and the service life of the compressor is prolonged.
Description
Technical field
The utility model relates to technical field of refrigeration compressors, relates in particular to the rotary compressor that a kind of silencing apparatus down supports eccentric crankshaft.
Background technique
Compressor is that compression refrigerant makes it participate in the circuit nucleus equipment in refrigerator, the air-conditioning system, rotary compressor is a kind of compressor commonly used, the structure of existing rotary compressor is as shown in Figure 1: include upper flange 1, lower flange 2, cylinder 3, eccentric crankshaft 4, upper flange 1, lower flange 2 lids are located at the two ends of cylinder 3, eccentric crankshaft 4 wore upper flange 1, lower flange 2, and the eccentric part 44 of eccentric crankshaft 4 and upper and lower thrust surface 41,42 are arranged between the upper and lower flange 1,2.In existing compressor, on the eccentric crankshaft 4, following thrust surface 41,42 contact respectively near last, lower flange 1,2 end face, be used to reduce eccentric crankshaft 4 and upper flange 1, thereby long-pending the reducing of the direct contact surface between the lower flange 2 rubs, but because eccentric crankshaft 4 carrying self and the weight that is arranged on eccentric crankshaft 4 upper end rotors 8, the gravity major part that is produced is all born by the following thrust surface 42 and the contacting point of lower flange 2, therefore in the course of the work, following thrust surface 42 is more serious with the abrasion condition of the surface of contact of lower flange 2, cause friction to increase after the wearing and tearing, eccentric crankshaft 4 is loosening in cylinder 3, thereby makes the compressor operating instability, noise increases, poor reliability, efficiency reduces, shorten the life-span of compressor.
The model utility content
Of the present utility model is big at the following thrust surface of the eccentric crankshaft of present rotary compressor and lower flange fretting wear and problem that produce, and a kind of rotary compressor that overcomes the above problems is provided.
For reaching above purpose, adopt following technological scheme:
A kind of silencing apparatus down supports the rotary compressor of eccentric crankshaft, described rotary compressor includes upper flange, lower flange, cylinder, eccentric crankshaft, upper flange, lower flange lid are located at the two ends of cylinder, eccentric crankshaft wore upper flange, lower flange, the upper and lower thrust surface of the eccentric part of eccentric crankshaft is arranged between the upper and lower flange, is covered with silencing apparatus, following silencing apparatus on upper flange, the lower flange respectively; The lower end of described lower flange is provided with supporting spring, and described supporting spring holder props up the breech face of eccentric crankshaft, and described silencing apparatus down supports supporting spring.
Wherein said silencing apparatus down is arranged to the annular boss to the supporting spring protrusion in the position of supporting spring.
Wherein said silencing apparatus down is provided with the ring convex line to the border that the supporting spring direction is protruded in the position of supporting spring, the ring convex line is against supporting going to the bottom of supporting spring.
The lower end of wherein said lower flange is provided with the supporting spring groove, and supporting spring is arranged in the supporting spring groove.
Be provided with anti-rotation device between wherein said lower flange and supporting spring.
Wherein said anti-rotation device is: described supporting spring is provided with breach, and the lower end of lower flange is provided with the convex clip position of engages indentation.
Wherein said lower flange the lower end with eccentric crankshaft be coupling touch in table be provided with axial oil guide slot, be provided with the supporting spring oilhole over against the supporting spring of oil guide slot.
Wherein said lower flange is provided with the lower flange oilhole.
The gap, upper-end surface of wherein said thrust surface down and lower flange is provided with.
The gap, upper-end surface of wherein said thrust surface down and lower flange is D, and the span of D is: 0.2≤D≤1.0mm.
Wherein said rotary compressor is single cylinder rotary compressor or duplex-cylinder rotary compressor or multi-cylinder rotary compressor.
The beneficial effects of the utility model are: the lower end of rotary compressor lower flange of the present utility model is provided with supporting spring, and the supporting spring holder props up the breech face of eccentric crankshaft, and following silencing apparatus supports supporting spring; Eccentric crankshaft carrying self and the gravity major part that weight produced that is arranged on eccentric crankshaft upper end rotor are born by supporting spring, supporting spring is supported by the lower flange that is arranged on the below, in the course of the work, avoid the surface of contact of thrust surface and lower flange under the prior art to bear the present situation of main gravity, reduced the friction of time thrust surface and lower flange, reduce both wearing and tearing, avoid eccentric crankshaft loosening in cylinder, compressor operating is stable more, noise reduces, reliability strengthens, efficiency is effectively promoted, and prolongs the working life of compressor.
Description of drawings
Fig. 1 is a prior art rotary compressor structural representation;
Fig. 2 is the utility model embodiment 1 structural representation;
Fig. 3 is the decomposing schematic representation of silencing apparatus under the utility model, supporting spring, lower flange assembling;
Fig. 4 is the utility model embodiment 2 structural representations.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified:
Embodiment 1, as shown in Figure 2: a kind of silencing apparatus down supports the rotary compressor of eccentric crankshaft, rotary compressor is single cylinder rotary compressor or duplex-cylinder rotary compressor, as present embodiment is the single cylinder rotary compressor, rotary compressor includes upper flange 1, lower flange 2, cylinder 3, eccentric crankshaft 4, upper flange 1, lower flange 2 lids are located at the two ends of cylinder 3, eccentric crankshaft 4 wore upper flange 1, lower flange 2, on the eccentric part 44 of eccentric crankshaft 4, following thrust surface 41,42 are arranged on, lower flange 1, between 2, upper flange 1, be covered with silencing apparatus 10 on the lower flange 2 respectively, following silencing apparatus 20; Be provided with a supporting spring groove 21 in the lower end of lower flange 2, one supporting spring 5 is arranged in the supporting spring groove 21, supporting spring 5 holders prop up the breech face 43 of eccentric crankshaft 4, following silencing apparatus 20 supports supporting spring 5, silencing apparatus is arranged to the annular boss 201 to supporting spring 5 protrusions in the position of supporting spring 5, annular boss 201 strengthens the support strength of silencing apparatuss 20 down, prevent down silencing apparatus 20 generation deformation after holding strength not enough.For to reach the purpose of reducing friction and alleviating wearing and tearing, the surface of the breech face of supporting spring 5 and eccentric crankshaft 4 is necessary for the light face in addition, and supporting spring 5 itself will possess very strong wear resistance, generally selects wear-resistant material for use.
In order to prevent that supporting spring 5 from lower flange 2 relative rotation taking place, be provided with anti-rotation device 25 at lower flange 2 and 5 of supporting springs, as a preferred embodiment, the anti-rotation device 25 that is adopted is realized (as shown in Figure 3) in the following manner: supporting spring 5 is provided with breach 51, and the lower end of lower flange 2 is provided with the convex clip position 22 of engages indentation 51.In order to make lubricant oil outflow in cylinder 3 chambeies and the surface of contact that lubricates the lower end axle of lower flange 2 and eccentric crankshaft 4, lower flange 2 the lower end with eccentric crankshaft 4 be coupling touch in table be provided with axial oil guide slot 23, over against the supporting spring 5 of oil guide slot 23 and on the silencing apparatus 20 supporting spring oilhole 52 and lower flange oilhole 24 are set respectively down.In the present embodiment, for easy for installation, the quantity of breach 51 is arranged to two breach 51 about supporting spring oilhole 52 symmetries on the supporting spring 5 in anti-rotation device 25, the assembly crewman can not make mistakes in installation process like this, supporting spring oilhole 52 is seen over against the oil guide slot 23 on lower flange 2 surfaces be Figure 3 shows that down silencing apparatus 20, supporting spring 5, lower flange 2 decomposing schematic representations.Present embodiment is not that different artificers can be designed to needed quantity as required in order to the quantity of breach 51 on the restriction supporting spring 5.
There is friction in thrust surface 42 with lower flange 2 in order thoroughly to remove down in addition, make the eccentric part 44 of eccentric crankshaft 4 in cylinder 3, be in " suspension " state fully, so will descend upper-end surface 26 gap design of thrust surface 42 and lower flange 2, the gap is D, sum up by test data, the span of D is: 0.2≤D≤1.0mm, and such span is fit to actual demand, if the gap is too little, thrust surface 42 mill lower flanges 2 down appear easily; If the gap is too big, stability and reliability variation the situation that eccentric crankshaft 4 becomes flexible can appear.
The above embodiment, it is preferred embodiments of the present utility model, be not to limit the utility model practical range,, all should be included in the utility model patent claim so all equivalences of doing according to the described structure of the utility model claim, feature and principle change or modify.
Claims (11)
1. a following silencing apparatus supports the rotary compressor of eccentric crankshaft, described rotary compressor includes upper flange (1), lower flange (2), cylinder (3), eccentric crankshaft (4), upper flange (1), lower flange (2) lid are located at the two ends of cylinder (3), eccentric crankshaft (4) wore upper flange (1), lower flange (2), the upper and lower thrust surface (41,42) of the eccentric part (44) of eccentric crankshaft (4) is arranged between the upper and lower flange (1,2), is covered with silencing apparatus (10), following silencing apparatus (20) on upper flange (1), the lower flange (2) respectively; It is characterized in that the lower end of described lower flange (2) is provided with supporting spring (5), described supporting spring (5) holder props up the breech face (43) of eccentric crankshaft (4), and described silencing apparatus (20) down supports supporting spring (5).
2. silencing apparatus down according to claim 1 supports the rotary compressor of eccentric crankshaft, it is characterized in that, described silencing apparatus (20) down is arranged to the annular boss (201) to supporting spring (5) protrusion in the position of supporting spring (5).
3. silencing apparatus down according to claim 1 supports the rotary compressor of eccentric crankshaft, it is characterized in that, described silencing apparatus (20) down is provided with the ring convex line (202) to the border that supporting spring (5) direction is protruded in the position of supporting spring (5), ring convex line (202) is against supporting going to the bottom of supporting spring (5).
4. silencing apparatus down according to claim 1 supports the rotary compressor of eccentric crankshaft, it is characterized in that the lower end of described lower flange (2) is provided with supporting spring groove (21), and supporting spring (5) is arranged in the supporting spring groove (21).
5. silencing apparatus down according to claim 1 supports the rotary compressor of eccentric crankshaft, it is characterized in that, is provided with anti-rotation device (25) between described lower flange (2) and supporting spring (5).
6. silencing apparatus down according to claim 5 supports the rotary compressor of eccentric crankshaft, it is characterized in that, described anti-rotation device (25) is: described supporting spring (5) is provided with breach (51), and the lower end of lower flange (2) is provided with the convex clip position (22) of engages indentation (51).
7. silencing apparatus down according to claim 1 supports the rotary compressor of eccentric crankshaft, it is characterized in that, described lower flange (2) the lower end with eccentric crankshaft (4) be coupling touch in table be provided with axial oil guide slot (23), be provided with supporting spring oilhole (52) over against the supporting spring (5) of oil guide slot (23).
8. silencing apparatus down according to claim 7 supports the rotary compressor of eccentric crankshaft, it is characterized in that, described silencing apparatus (20) down is provided with lower flange oilhole (24).
9. silencing apparatus down according to claim 1 supports the rotary compressor of eccentric crankshaft, it is characterized in that, described thrust surface (42) down is provided with the gap, upper-end surface (26) of lower flange (2).
10. silencing apparatus down according to claim 9 supports the rotary compressor of eccentric crankshaft, it is characterized in that, described thrust surface (42) down is D with the gap, upper-end surface (26) of lower flange (2), and the span of D is: 0.2≤D≤1.0mm.
11. the rotary compressor according to any described support of the silencing apparatus down eccentric crankshaft of claim 1-10 is characterized in that described rotary compressor is single cylinder rotary compressor or duplex-cylinder rotary compressor or multi-cylinder rotary compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201444702U CN201696298U (en) | 2010-03-23 | 2010-03-23 | Rotary compressor with eccentric crankshaft supported by lower muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201444702U CN201696298U (en) | 2010-03-23 | 2010-03-23 | Rotary compressor with eccentric crankshaft supported by lower muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201696298U true CN201696298U (en) | 2011-01-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201444702U Expired - Lifetime CN201696298U (en) | 2010-03-23 | 2010-03-23 | Rotary compressor with eccentric crankshaft supported by lower muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201696298U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653459A (en) * | 2014-12-12 | 2015-05-27 | 广东美芝制冷设备有限公司 | Compressor |
| CN105626536A (en) * | 2014-10-31 | 2016-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor pump body and compressor comprising same |
| CN106089717A (en) * | 2016-07-28 | 2016-11-09 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor pump and compressor |
| CN106368951A (en) * | 2016-10-18 | 2017-02-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor |
| CN106401964A (en) * | 2016-06-17 | 2017-02-15 | 郑州凌达压缩机有限公司 | Lower flange for compressor pump body assembly, compressor pump body assembly and compressor |
| CN106640645A (en) * | 2015-08-07 | 2017-05-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Fluid flow machine, heat exchange and fluid flow machine operation method |
| CN108547769A (en) * | 2018-07-18 | 2018-09-18 | 珠海格力节能环保制冷技术研究中心有限公司 | The pump housing and compressor |
-
2010
- 2010-03-23 CN CN2010201444702U patent/CN201696298U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626536A (en) * | 2014-10-31 | 2016-06-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor pump body and compressor comprising same |
| CN104653459A (en) * | 2014-12-12 | 2015-05-27 | 广东美芝制冷设备有限公司 | Compressor |
| CN106640645A (en) * | 2015-08-07 | 2017-05-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Fluid flow machine, heat exchange and fluid flow machine operation method |
| CN106640645B (en) * | 2015-08-07 | 2019-05-31 | 珠海格力电器股份有限公司 | The operation method of fluid machinery, heat exchange equipment and fluid machinery |
| US10941771B2 (en) | 2015-08-07 | 2021-03-09 | Gree Green Refrigeration Technology Center Co., Ltd. Of Zhuhai | Fluid machinery, heat exchange equipment, and operating method for fluid machinery |
| CN106401964A (en) * | 2016-06-17 | 2017-02-15 | 郑州凌达压缩机有限公司 | Lower flange for compressor pump body assembly, compressor pump body assembly and compressor |
| CN106089717A (en) * | 2016-07-28 | 2016-11-09 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor pump and compressor |
| CN106368951A (en) * | 2016-10-18 | 2017-02-01 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor |
| CN108547769A (en) * | 2018-07-18 | 2018-09-18 | 珠海格力节能环保制冷技术研究中心有限公司 | The pump housing and compressor |
| CN108547769B (en) * | 2018-07-18 | 2023-08-25 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110105 |
|
| CX01 | Expiry of patent term |