CN104632865A - Split type crankshaft of compressor - Google Patents
Split type crankshaft of compressor Download PDFInfo
- Publication number
- CN104632865A CN104632865A CN201510090277.2A CN201510090277A CN104632865A CN 104632865 A CN104632865 A CN 104632865A CN 201510090277 A CN201510090277 A CN 201510090277A CN 104632865 A CN104632865 A CN 104632865A
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- China
- Prior art keywords
- compressor
- interference
- split type
- eccentric wheel
- bent axle
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a split type crankshaft of a compressor. The split type crankshaft comprises a shaft body and an eccentric wheel, wherein an eccentric hole is formed in the eccentric wheel; and the shaft body is sleeved with the eccentric wheel through the eccentric hole; the shaft body is in interference fit with the eccentric wheel, and the magnitude of interference is designed to be 0.050-0.100. The shaft body is in interference fit with the eccentric wheel, and the magnitude of interference is determined, so that the split type machining and assembling of the crankshaft are achieved; furthermore, the shaft body and the eccentric wheel are tightly connected after the assembling, so that actual production requirements and each performance, particularly the index of torque, of the crankshaft of the compressor can be completely met.
Description
Technical field
The present invention relates to bent axle, more particularly, relate to the split type bent axle of a kind of compressor.
Background technique
At present, the bent axle form structure of typical compressor with rolling rotor from left to right centered by through hole major axis add eccentric part and add minor axis, its conventional machining process is passed through rough-cast for pressing bent axle contours profiles, through peeling, end chamfer, breach processing, coaxial portion, eccentric part, thrust surface processing, is beaten the series of processes such as deep hole, half crescent, (horizontal stroke) the hole roughing of brill oil, complete the semi-finished product of bent axle, need again, through major and minor axis, eccentric part, thrust surface fine grinding, polishing, surface treatment procedure, just can become spendable finished product.Therefore, traditional integrated type processing technology, high material consumption, process route are long, equipment automatization is low, high expensive.
CN203770368U discloses a kind of combined rolling rotor type compressor crankshaft, its fabricated structure adopting major axis body and cylindrical body mutually sheathed, first can process major axis body and cylindrical body respectively, then both be assembled together, thus can material be saved, simplified processing process.But, this technology only disclose cylindrical body can through colding pressing, hot jacket or be welded to connect on major axis body, this is for actual production, obviously also just one comparatively wide in range, also comparatively simply imagine.Owing to have employed fabricated structure, how to ensure that both are nested closely, how can meet each performance index of actual production requirement and compressor crank shaft, this is obviously need research more deep further and innovation, makes the split type processing of bent axle become reality from theory.
Summary of the invention
Object of the present invention aims to provide the split type bent axle of a kind of compressor, not only can Simplified flowsheet, reduce costs, but also can actual production be met.
The split type bent axle of this compressor, comprises axis body and eccentric wheel, is provided with eccentric opening in eccentric wheel, and is sheathed on axis body by eccentric opening, and be interference fit between described axis body and eccentric wheel, its magnitude of interference is designed to 0.650 ~ 0.100.
Preferably, described magnitude of interference is designed to 0.058 ~ 0.080.
Preferably, described magnitude of interference is 0.061.
Preferably, described magnitude of interference is 0.063.
Preferably, described magnitude of interference is 0.068.
Preferably, described magnitude of interference is 0.078.
Preferably, described magnitude of interference is 0.071.
The split type bent axle of compressor of the present invention comprises axis body and eccentric wheel, is provided with eccentric opening in eccentric wheel, and is sheathed on axis body by eccentric opening, and be interference fit between axis body and eccentric wheel, its magnitude of interference is designed to 0.050 ~ 0.100.Owing to adopting interference fit between axis body and eccentric wheel, and determine magnitude of interference, the split type processing of this bent axle and assembling is made to have become reality, and axis body is connected closely with after eccentric wheel assembling, the index of each performance, particularly moment of torsion of actual production requirement and compressor crank shaft can be met completely.
Accompanying drawing explanation
In the present invention, identical reference character represents identical feature all the time, wherein:
Fig. 1 is the structural representation of axis body of the present invention;
Fig. 2 is eccentric structural representation of the present invention;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the assembling schematic diagram of bent axle of the present invention.
Embodiment
Technological scheme of the present invention is further illustrated below in conjunction with drawings and Examples.
Refer to shown in Fig. 1 ~ Fig. 4, the split type bent axle of compressor of the present invention is same as the prior art, is equally also split-type structural, comprise hollow axis body 1 and eccentric wheel 2, be provided with eccentric opening 3 in eccentric wheel 2, and be sheathed on axis body 1 by eccentric opening 3, do not repeating at this.Unlike the prior art, interference fit is adopted between axis body 1 of the present invention and eccentric wheel 2, by testing many times and repeatedly calculating, its magnitude of interference is designed to 0.050 ~ 0.100, otherwise if magnitude of interference is too small, bent axle easily loosens, moment of torsion is inadequate, if magnitude of interference is excessive, eccentric wheel is easily caused again to rupture.
Specific embodiment refers to following table:
Can see from upper table, proved by test and actual trial production, adopt the design of interference fit of the present invention and magnitude of interference, make the split type processing of bent axle become reality from theory, thus really achieve simplified processing process, reduce the consumption of material, reduce cost of production, and axis body 1 and eccentric wheel 2 fitting tight, the property indices of whole bent axle, particularly moment of torsion (all at more than 28N.m, super former index 20N.m far away) can meet working conditions of compressor demand completely.
Certainly, split-type structural of the present invention, interference fit and magnitude of interference design, and not only can be applied to compressor crank shaft, can also be applied to equally on other similar bent axles.
Those of ordinary skill in the art will be appreciated that, above specification is only one or more mode of executions in the numerous embodiment of the present invention, and not uses limitation of the invention.Any equalization for the above embodiment changes, modification and the equivalent technological scheme such as to substitute, as long as spirit according to the invention, all will drop in scope that claims of the present invention protect.
Claims (7)
1. the split type bent axle of compressor, comprises axis body and eccentric wheel, is provided with eccentric opening in eccentric wheel, and is sheathed on axis body by eccentric opening, it is characterized in that:
Be interference fit between described axis body and eccentric wheel, its magnitude of interference is designed to 0.050 ~ 0.100.
2. the split type bent axle of compressor as claimed in claim 1, is characterized in that:
Described magnitude of interference is designed to 0.058 ~ 0.080.
3. the split type bent axle of compressor as claimed in claim 1 or 2, is characterized in that:
Described magnitude of interference is 0.061.
4. the split type bent axle of compressor as claimed in claim 1 or 2, is characterized in that:
Described magnitude of interference is 0.063.
5. the split type bent axle of compressor as claimed in claim 1 or 2, is characterized in that:
Described magnitude of interference is 0.068.
6. the split type bent axle of compressor as claimed in claim 1 or 2, is characterized in that:
Described magnitude of interference is 0.078.
7. the split type bent axle of compressor as claimed in claim 1 or 2, is characterized in that:
Described magnitude of interference is 0.071.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510090277.2A CN104632865A (en) | 2015-02-28 | 2015-02-28 | Split type crankshaft of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510090277.2A CN104632865A (en) | 2015-02-28 | 2015-02-28 | Split type crankshaft of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104632865A true CN104632865A (en) | 2015-05-20 |
Family
ID=53211971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510090277.2A Pending CN104632865A (en) | 2015-02-28 | 2015-02-28 | Split type crankshaft of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104632865A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2139320B (en) * | 1983-05-03 | 1986-03-19 | Aspera Spa | Crankshaft for compressors |
| CN200949598Y (en) * | 2006-09-19 | 2007-09-19 | 刘素华 | Assembly cam axle |
| CN103867553A (en) * | 2012-12-18 | 2014-06-18 | 潘茂江 | Improved split-type shaft |
| CN203770368U (en) * | 2013-12-30 | 2014-08-13 | 上海日立电器有限公司 | Combined type rolling rotor type compressor crankshaft |
| CN203809493U (en) * | 2014-03-31 | 2014-09-03 | 珠海凌达压缩机有限公司 | Crankshaft and compressor |
-
2015
- 2015-02-28 CN CN201510090277.2A patent/CN104632865A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2139320B (en) * | 1983-05-03 | 1986-03-19 | Aspera Spa | Crankshaft for compressors |
| CN200949598Y (en) * | 2006-09-19 | 2007-09-19 | 刘素华 | Assembly cam axle |
| CN103867553A (en) * | 2012-12-18 | 2014-06-18 | 潘茂江 | Improved split-type shaft |
| CN203770368U (en) * | 2013-12-30 | 2014-08-13 | 上海日立电器有限公司 | Combined type rolling rotor type compressor crankshaft |
| CN203809493U (en) * | 2014-03-31 | 2014-09-03 | 珠海凌达压缩机有限公司 | Crankshaft and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150520 |