CN202001306U - Resistance-reducing wear-resistant rotary compressor - Google Patents
Resistance-reducing wear-resistant rotary compressor Download PDFInfo
- Publication number
- CN202001306U CN202001306U CN2010206086465U CN201020608646U CN202001306U CN 202001306 U CN202001306 U CN 202001306U CN 2010206086465 U CN2010206086465 U CN 2010206086465U CN 201020608646 U CN201020608646 U CN 201020608646U CN 202001306 U CN202001306 U CN 202001306U
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- rotary compressor
- lower flange
- bearing housing
- resistance
- compression unit
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Abstract
The utility model relates to the technical field of refrigeration compressors, and particularly to a resistance-reducing wear-resistant rotary compressor, wherein an inwardly-opened annular groove is arranged between the upper end surface of a lower flange and a lower bearing hole end of the rotary compressor; a bearing sleeve made of self-lubricating material is also arranged on the rotary compressor; the annular end surface and a cylinder body of the bearing sleeve are embedded in the annular groove in a matched manner; and the annular end surface supports the lower thrust surface of an eccentric compression unit. Under the high-speed rotation of the rotary compressor, the bearing sleeve can enhance the lubrication between the lower thrust surface and the annular end surface, reduce friction and avoid abrasion, reduce the abrasion between the lower bearing hole of the bearing sleeve and the lower rotating shaft, and enhance the lubrication; therefore the resistance-reducing wear-resistant rotary compressor has the characteristics that the stability is improved, the noise is reduced, the reliability is enhanced, the energy efficiency is improved, and the service life is prolonged.
Description
Technical field
The utility model relates to technical field of refrigeration compressors, relates in particular to a kind of wear-resisting rotary compressor of resistance that falls.
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, existing rotary compressor comprises rotary compressor and waves compressor, shown in Fig. 1 (this is a rotary compressor): include upper flange 1, lower flange 2, cylinder 3, eccentric compression unit 4, upper flange 1, lower flange 2 lids are located at the two ends of cylinder 3, eccentric compression unit 4 wore upper flange 1, lower flange 2, and upper and lower thrust surface 41,42 is arranged between the upper and lower flange 1,2.In existing compressor, on the eccentric compression unit 4, following thrust surface 41,42 contact respectively near last, lower flange 1,2 end face, be used to reduce eccentric compression unit 4 and upper flange 1, thereby long-pending the reducing of the direct contact surface between the lower flange 2 rubs, but because eccentric compression unit 4 carryings self and the weight that is arranged on eccentric compression unit 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, though there is lubricant oil in the system, but because both run up down in the load-bearing contact, lubricant oil is difficult to enter therebetween; Therefore in the course of the work, following thrust surface 42 is very big with the surface of contact friction of lower flange 2, following thrust surface 42 is more serious with the abrasion condition of the surface of contact of lower flange 2, cause eccentric compression unit 4 loosening in cylinder 3, thereby make compressor operating instability, noise increase, poor reliability, efficiency reduce, shorten the life-span of compressor.In addition because the eccentric rotary of eccentric compression unit 4, lower rotary shaft 43 as the eccentric compression unit 4 of load-bearing rotates in lower flange 2 lower bearing holes 22, lower rotary shaft 43 and the rotation in lower bearing hole 22, under the high speed rotating, system oil is difficult to enter therebetween, increase both frictions, moving frequently eccentric stress causes wearing and tearing between the two bigger, thereby causes compressor operating instability, noise increase, poor reliability, efficiency to reduce, shorten the life-span of compressor.
The model utility content
Of the present utility model is to cause the problems such as wearing and tearing of the lower rotary shaft of lower flange lower bearing hole and eccentric compression unit at the big and moving frequently eccentric stress of the following thrust surface of the eccentric compression unit of present rotary compressor and lower flange fretting wear, and a kind of rotary compressor that overcomes the above problems is provided.
For reaching above purpose, adopt following technological scheme:
A kind of wear-resisting rotary compressor of resistance that falls, described rotary compressor includes upper flange, lower flange, cylinder, eccentric compression unit, upper flange, lower flange lid are located at the two ends of cylinder, eccentric compression unit wore upper flange, lower flange, and the upper and lower thrust surface of eccentric compression unit is arranged between the upper and lower flange; Described lower flange upper-end surface to lower bearing nose end is provided with inside open ring groove, and described rotary compressor also is provided with the bearing housing that a self lubricating material constitutes, and described bearing housing comprises that a cylindrical body and is arranged on the annular end face on cylindrical body top; The annular end face of described bearing housing and cylindrical body coupling are embedded in annular groove, and annular end face supports the following thrust surface of eccentric compression unit.
Wherein said bearing housing is being embedded the concordant no step of junction two junction with lower flange.
The lower bearing hole interference fit of the cylindrical body of wherein said bearing housing and lower flange.
The annular end face size of wherein said bearing housing is the scope that thrust surface rotation is down covered.
The cylindrical body of wherein said bearing housing runs through the lower bearing hole that is arranged on lower flange.
The cylindrical body of wherein said bearing housing is embedded in the part lower bearing hole of lower flange.
Wherein said bearing housing is matrix with steel, and the spherical bronze powder of intermediate sintering is with surface rolling PTFE that contacts the compression unit rubbing contact and the mixture of pb.
The weight ratio content of the rubbing contact of wherein said bearing housing surface PTFE and pb is: PTFE is 80%, pb content is 20%.
The beneficial effects of the utility model are: the upper-end surface of rotary compressor lower flange of the present utility model to lower bearing nose end is provided with inside open ring groove, rotary compressor also is provided with the bearing housing that a self lubricating material constitutes, the annular end face of bearing housing and cylindrical body coupling are embedded in annular groove, and annular end face supports the following thrust surface of eccentric compression unit; Eccentric compression unit carrying self and be arranged on eccentric compression unit upper end rotor the most of self oiling bearing cover of the gravity that weight produced annular end face bear; Owing to the eccentric rotary of eccentric compression unit, the lower rotary shaft part is rotated in cylindrical body in addition; The self oiling bearing cover has characteristics such as lubrication effect is good under little, wear-resisting, the no oily condition of friction factor, and therefore, under high speed rotating, lubricating between thrust surface and the annular end face reduced friction under bearing housing can strengthen, and prevented wearing and tearing; Lower rotary shaft part is rotated frequently movable property and is given birth to eccentric stress in cylindrical body, so bearing housing can also reduce the wearing and tearing of lower bearing hole and lower rotary shaft, strengthens and lubricates; Therefore the utlity model has the characteristics that strengthen compressor stability, reduce noise, promote reliability, improve efficiency, prolong the life-span 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 utility model embodiment 2 structural representations.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified:
Embodiment 1, a kind of wear-resisting rotary compressor of resistance that falls, rotary compressor includes upper flange 1, lower flange 2, cylinder 3, eccentric compression unit 4, upper flange 1, lower flange 2 lids are located at the two ends of cylinder 3, eccentric compression unit 4 wore upper flange 1, lower flange 2, and the upper and lower thrust surface 41,42 of eccentric compression unit 4 is arranged between the upper and lower flange 1,2; Lower flange 2 upper-end surfaces 21 are provided with inside open ring groove 23 to lower bearing hole 22 ends, and rotary compressor also is provided with the bearing housing 5 that a self lubricating material constitutes, and bearing housing 5 comprises that a cylindrical body 51 and is arranged on the annular end face 52 on cylindrical body 51 tops; The annular end face 52 of bearing housing 5 is embedded in annular groove 23 with cylindrical body 51 couplings, bearing housing 5 is being embedded the concordant no step of junction two junction with lower flange 2, make eccentric compression unit 4 in cylinder 3, lower rotary shaft 43 rotates in lower bearing hole 22 flexibly, no clamping stagnation, annular end face 52 supports the following thrust surface 42 of eccentric compression unit 4; The cylindrical body 51 of bearing housing 5 and lower bearing hole 22 interference fit of lower flange 2, the interference fit of appropriate size makes cylindrical body 51 combine closely with lower bearing hole 22, prevents that compressor cylindrical body 51 in work the time from rotating.Make as preferred embodiment, annular end face 52 sizes of bearing housing 5 are typically provided to down the scope that thrust surface 42 rotations are covered, and make the size of annular end face 52 just adapt to thrust surface 42 down, effectively save self lubricating material.In order farthest to reduce the wearing and tearing between lower rotary shaft 43 and the lower bearing hole 22, the cylindrical body 51 of bearing housing 5 runs through the lower bearing hole 22 that is arranged on lower flange 2.
Embodiment 2 and embodiment 1 are similar substantially, difference is, in order to reach suitable degree of lubrication, the cylindrical body 51 of bearing housing 5 is embedded in the part lower bearing hole 22 of lower flange 2, promptly, annular groove 23 downward bearing hole 22 ends are provided with certain distance, do not run through setting, and the cylindrical body 51 of the muff of Pei Heing is arranged to corresponding size with it.
In the utility model, the bearing housing of self lubricating material is matrix with steel, the spherical bronze powder of intermediate sintering, with surface rolling PTFE that contacts the compression unit rubbing contact and the mixture of pb, through the experiment gained, at the weight ratio content of face PTFE and pb be: PTFE is 80%, pb content is that 20% o'clock effect is preferable.
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 (6)
1. one kind is fallen the wear-resisting rotary compressor of resistance, described rotary compressor includes upper flange (1), lower flange (2), cylinder (3), eccentric compression unit (4), upper flange (1), lower flange (2) lid are located at the two ends of cylinder (3), eccentric compression unit (4) wore upper flange (1), lower flange (2), and the upper and lower thrust surface (41) of eccentric compression unit (4), (42) are arranged between upper and lower flange (1), (2); It is characterized in that, described lower flange (2) upper-end surface (21) to lower bearing hole (22) end is provided with inside open ring groove (23), described rotary compressor also is provided with the bearing housing (5) that a self lubricating material constitutes, and described bearing housing (5) comprises that a cylindrical body (51) and is arranged on the annular end face (52) on cylindrical body (51) top; The annular end face (52) of described bearing housing (5) is embedded in annular groove (23) with cylindrical body (51) coupling, and annular end face (52) supports the following thrust surface (42) of eccentric compression unit (4).
2. the wear-resisting rotary compressor of resistance that falls according to claim 1 is characterized in that described bearing housing (5) is being embedded the concordant no step of junction two junction with lower flange (2).
3. the wear-resisting rotary compressor of resistance that falls according to claim 1 is characterized in that lower bearing hole (22) interference fit of the cylindrical body (51) of described bearing housing (5) and lower flange (2).
4. the wear-resisting rotary compressor of resistance that falls according to claim 1 is characterized in that, annular end face (52) size of described bearing housing (5) is the scope that thrust surface (42) rotation is down covered.
5. the wear-resisting rotary compressor of resistance that falls according to claim 1 is characterized in that the cylindrical body (51) of described bearing housing (5) runs through the lower bearing hole (22) that is arranged on lower flange (2).
6. the wear-resisting rotary compressor of resistance that falls according to claim 1 is characterized in that the cylindrical body (51) of described bearing housing (5) is embedded in the part lower bearing hole (22) of lower flange (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206086465U CN202001306U (en) | 2010-11-16 | 2010-11-16 | Resistance-reducing wear-resistant rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206086465U CN202001306U (en) | 2010-11-16 | 2010-11-16 | Resistance-reducing wear-resistant rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202001306U true CN202001306U (en) | 2011-10-05 |
Family
ID=44704049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206086465U Expired - Lifetime CN202001306U (en) | 2010-11-16 | 2010-11-16 | Resistance-reducing wear-resistant rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202001306U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742414A (en) * | 2013-12-25 | 2014-04-23 | 广东美芝精密制造有限公司 | Compression pump body of rotary compressor |
| CN104454452A (en) * | 2014-12-02 | 2015-03-25 | 广东美芝制冷设备有限公司 | Bearing for compressor and compressor |
| CN105370577A (en) * | 2014-08-28 | 2016-03-02 | 上海日立电器有限公司 | Compressor |
| CN105464982A (en) * | 2014-08-28 | 2016-04-06 | 上海日立电器有限公司 | Compressor |
| CN106996375A (en) * | 2017-05-31 | 2017-08-01 | 广东美芝制冷设备有限公司 | Air-conditioning, rotary compressor and its pumping installations |
-
2010
- 2010-11-16 CN CN2010206086465U patent/CN202001306U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742414A (en) * | 2013-12-25 | 2014-04-23 | 广东美芝精密制造有限公司 | Compression pump body of rotary compressor |
| CN103742414B (en) * | 2013-12-25 | 2016-03-16 | 广东美芝精密制造有限公司 | The compression pump housing of rotary compressor |
| CN105370577A (en) * | 2014-08-28 | 2016-03-02 | 上海日立电器有限公司 | Compressor |
| CN105464982A (en) * | 2014-08-28 | 2016-04-06 | 上海日立电器有限公司 | Compressor |
| CN105370577B (en) * | 2014-08-28 | 2017-07-25 | 上海日立电器有限公司 | A kind of compressor |
| CN104454452A (en) * | 2014-12-02 | 2015-03-25 | 广东美芝制冷设备有限公司 | Bearing for compressor and compressor |
| CN106996375A (en) * | 2017-05-31 | 2017-08-01 | 广东美芝制冷设备有限公司 | Air-conditioning, rotary compressor and its pumping installations |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |