CN104863860A - Crankshaft on rotary compressor - Google Patents
Crankshaft on rotary compressor Download PDFInfo
- Publication number
- CN104863860A CN104863860A CN201510292306.3A CN201510292306A CN104863860A CN 104863860 A CN104863860 A CN 104863860A CN 201510292306 A CN201510292306 A CN 201510292306A CN 104863860 A CN104863860 A CN 104863860A
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- eccentric part
- bent axle
- rotary compressor
- major axis
- end surface
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Abstract
The invention discloses a crankshaft on a rotary compressor. The crankshaft comprises a long shaft and an eccentric part arranged on the long shaft, wherein both the upper end surface and the lower end surface of the eccentric part are perpendicular to the side surfaces of the eccentric part, the upper end surface and the lower end surface are respectively in sealing contact with an upper flange and a lower flange at the two ends of the eccentric part, the side surfaces of the eccentric part are in linear sealing contact with a blade of the rotary compressor, and a compressing cavity is formed among the eccentric part, the upper flange, the lower flange, the blade and the inner side wall of an air cylinder. The eccentric part of the crankshaft on the rotary compressor can be in direct sealing contact with the blade in the compressor, a rolling rotor arranged on the traditional crankshaft in a sleeving manner is eliminated, the structural design and the control of the dimensional chain fitting precision are simpler and easier, the assembly precision and the assembly efficiency can be greatly improved, and the manufacture cost is reduced.
Description
Technical field
The present invention relates to bent axle technical field, relate to the bent axle on a kind of rotary compressor specifically.
Background technique
The bent axle of traditional rotary compressor generally uses cast iron materials; compressor operationally; crankshaft high-speed rotates; be not excessively abraded to protect the eccentric part of bent axle; need at the wear-resisting rolling rotor of the outer surface cover one of eccentric part; rolling rotor and blade contact, and compression chamber is formed together with upper and lower flange.Owing to needing the space forming sealing in compression chamber, therefore rotary roller upper-end surface, lower end surface and all need to be formed to seal with the face of blade contact and contact; And coordinate with the assembling of rotary roller for the ease of the eccentric part of bent axle, the axial thickness of eccentric part is all less than the axial thickness of rotary roller, and the dot location of the both ends of the surface of eccentric part is provided with chamfering.Owing to adding a rotary roller on eccentric part, the structure of compressor pump (compression assembly) and size is made to become complicated, the control difficulty of assembly precision increases greatly, and adds the manufacture cost of processing, assembling, and production management also improves difficulty.
Summary of the invention
The present invention aims to provide a kind of bent axle not needing to install on the rotary compressor of rolling rotor.
For solving the problems of the technologies described above, technological scheme of the present invention is:
Bent axle on a kind of rotary compressor, comprise major axis and be arranged on the eccentric part on described major axis, the upper-end surface of described eccentric part and the lower end surface of described eccentric part all with the lateral vertical of described eccentric part, described upper-end surface and described lower end surface respectively be arranged on the upper flange at described eccentric part two ends, lower flange seals and contacts, between the side of described eccentric part and the blade of described rotary compressor, linear sealing contacts, and forms compression chamber between the madial wall of described eccentric part and described upper flange, described lower flange, described blade, cylinder.
Preferably, described eccentric part is cylindrical-shaped structure, the axis of described eccentric part and the axis being parallel of described major axis.
Preferably, the axle center place of described major axis is provided with the oilhole for carrying lubricant oil, and lubricant oil is delivered to the side of described major axis by described oilhole by the radial hole on described major axis.
Preferably, described oilhole is blind hole or through hole, and described oilhole extends in described major axis body from one end end face that eccentric part described in the distance of described major axis is near, and described oilhole runs through described eccentric part vertically, and the bottom of described oilhole is communicated with described radial hole.
Preferably, described eccentric part and described major axis are integral type structure.
Preferably, the bulk material of described bent axle is alloyed steel.
Preferably, the surface of described eccentric part or the surface of whole described bent axle are provided with one deck wearing layer.
Preferably, described wearing layer is formed through salt-bath nitriding by described bent axle.
Adopt technique scheme, the present invention at least comprises following beneficial effect:
Bent axle on rotary compressor of the present invention can seal by the blade contact directly and in compressor, eliminate the rolling rotor be enclosed within conventional crankshafts, the control of its structural design and dimensional chain quality of fit becomes simpler, easy, assembly precision and packaging efficiency can significantly improve, and reduce manufacture cost.
Accompanying drawing explanation
Fig. 1 is the perspective view of the bent axle on rotary compressor of the present invention;
Fig. 2 is the half sectional view of the bent axle on rotary compressor of the present invention;
Fig. 3 is the structural representation of bent axle of the present invention and upper lower flange, blade, cylinder cooperation place.
Wherein: 1. major axis, 2. eccentric part, 21-upper-end surface, 22-lower end surface, 23-side, 3-oilhole, 4-radial hole; 5-upper flange; 6-lower flange; 7-blade; 8-spring; 9-compression chamber; 10-cylinder.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As shown in Figure 1 to Figure 3, for the bent axle on a kind of rotary compressor according to the invention, the eccentric part 2 comprising major axis 1 and be arranged on described major axis 1, the upper-end surface 21 of described eccentric part 2 and the lower end surface 22 of described eccentric part 2 all with the lateral vertical of described eccentric part 2, described upper-end surface 21 and described lower end surface 22 respectively with the upper flange 5 being arranged on described eccentric part 2 two ends, lower flange 6 seals contact, the side 23 of described eccentric part 2 in circumferential rotation process and between the blade 7 of described rotary compressor linear sealing contact, described blade 7 is conflicted the side of described eccentric part 2 under the effect of spring 8, described eccentric part 2 and described upper flange 5, described lower flange 6, described blade 7, compression chamber 9 is formed between the madial wall of cylinder 10.Bent axle on the rotary compressor of the present embodiment can seal by the blade contact directly and in compressor, eliminate the rolling rotor be enclosed within conventional crankshafts, the control of its structural design and dimensional chain quality of fit becomes simpler, easy, assembly precision and packaging efficiency can significantly improve, and reduce manufacture cost
In the present embodiment, described eccentric part 2 is in cylindrical-shaped structure, the axis of described eccentric part 2 and the axis being parallel of described major axis 1.Columned eccentric part 2 is convenient to processing, is installed, and cuts down finished cost, and can be convenient to ensure assembly precision.
In the present embodiment, the axle center place of described major axis 1 is provided with the oilhole 3 for carrying lubricant oil, described oilhole 3 is blind hole (also can be arranged to through hole), described oilhole 3 extends in described major axis 1 body from one end end face that eccentric part 2 described in the distance of described major axis 1 is near, described oilhole 3 runs through described eccentric part 2 vertically, the bottom of described oilhole 3 is communicated with radial hole 4, lubricant oil in described oilhole 3 flows out from described radial hole 4, so that lubricate the outer surface of described major axis 1.
In the present embodiment, described eccentric part 2 is integral type structure with described major axis 1, and the bulk material of described bent axle is alloyed steel, as 20Cr etc., including but not limited to various alloyed steel and high speed steel.Take 20Cr as the alloyed steel of representative, market is easy to obtain, buying is convenient.
The surface of described eccentric part 2 is provided with one deck wearing layer, and described wearing layer is that whole bent axle is formed through salt Bath Nitriding Treatment, this processing mode comparatively for convenience of, easily realize.Have corrosion-resistant function through the bent axle surface of salt Bath Nitriding Treatment, certainly, also can be that other is to improve the surface treatment mode for the purpose of wear resistance simultaneously.Surface coated treatment has various technological method, especially with anticorrosion and raising wear resistance, is a kind of technique of maturation, repeats no more herein.Certainly, where necessary, the surface of described eccentric part 2 can also arrange separately one deck anticorrosive coat, to improve antiseptic effect.
Above one embodiment of the present of invention have been described in detail, but described content being only the preferred embodiment of the invention, can not being considered to for limiting practical range of the present invention.All any equivalent variations done according to the present patent application scope, all should still be within patent covering scope of the present invention.
Claims (8)
1. the bent axle on a rotary compressor, comprise major axis and be arranged on the eccentric part on described major axis, it is characterized in that: the upper-end surface of described eccentric part and the lower end surface of described eccentric part all with the lateral vertical of described eccentric part, described upper-end surface and described lower end surface respectively be arranged on the upper flange at described eccentric part two ends, lower flange seals and contacts, between the side of described eccentric part and the blade of described rotary compressor, linear sealing contacts, and forms compression chamber between the madial wall of described eccentric part and described upper flange, described lower flange, described blade, cylinder.
2. the bent axle on rotary compressor as claimed in claim 1, is characterized in that: described eccentric part is cylindrical-shaped structure, the axis of described eccentric part and the axis being parallel of described major axis.
3. the bent axle on rotary compressor as claimed in claim 1 or 2, it is characterized in that: the axle center place of described major axis is provided with the oilhole for carrying lubricant oil, lubricant oil is delivered to the side of described major axis by described oilhole by the radial hole on described major axis.
4. the bent axle on rotary compressor as claimed in claim 3, it is characterized in that: described oilhole is blind hole or through hole, described oilhole extends in described major axis body from one end end face that eccentric part described in the distance of described major axis is near, described oilhole runs through described eccentric part vertically, and the bottom of described oilhole is communicated with described radial hole.
5. the bent axle on the rotary compressor as described in as arbitrary in claim 1-4, is characterized in that: described eccentric part and described major axis are integral type structure.
6. the bent axle on the rotary compressor as described in as arbitrary in claim 1-5, is characterized in that: the bulk material of described bent axle is alloyed steel.
7. the bent axle on the rotary compressor as described in as arbitrary in claim 1-6, is characterized in that: the surface of described eccentric part or the surface of whole described bent axle are provided with one deck wearing layer.
8. the bent axle on rotary compressor as claimed in claim 7, is characterized in that: described wearing layer is formed through salt-bath nitriding by described bent axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510292306.3A CN104863860A (en) | 2015-06-01 | 2015-06-01 | Crankshaft on rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510292306.3A CN104863860A (en) | 2015-06-01 | 2015-06-01 | Crankshaft on rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104863860A true CN104863860A (en) | 2015-08-26 |
Family
ID=53909941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510292306.3A Pending CN104863860A (en) | 2015-06-01 | 2015-06-01 | Crankshaft on rotary compressor |
Country Status (1)
| Country | Link |
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| CN (1) | CN104863860A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201851A (en) * | 2015-10-30 | 2015-12-30 | 浙江百达精工股份有限公司 | Crankshaft of air condition compressor |
| CN109209878A (en) * | 2018-10-25 | 2019-01-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft, pump assembly, rotary compressor and refrigeration equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201779015U (en) * | 2010-06-19 | 2011-03-30 | 广东美芝制冷设备有限公司 | Closed rotary compressor |
| CN102734168A (en) * | 2011-04-08 | 2012-10-17 | 广东美芝制冷设备有限公司 | Oil supply hole structure of rotary compressor eccentric crankshaft |
| CN102797680A (en) * | 2012-07-03 | 2012-11-28 | 珠海格力电器股份有限公司 | Eccentric variable crankshaft and rotary compressor using same |
| JP2014098382A (en) * | 2012-10-16 | 2014-05-29 | Mitsubishi Electric Corp | Rotary compressor |
| CN204152793U (en) * | 2014-10-15 | 2015-02-11 | 广东美芝制冷设备有限公司 | The bent axle of rotary compressor and there is its rotary compressor |
| CN204704115U (en) * | 2015-06-01 | 2015-10-14 | 刘志庆 | Bent axle on a kind of rotary compressor |
-
2015
- 2015-06-01 CN CN201510292306.3A patent/CN104863860A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201779015U (en) * | 2010-06-19 | 2011-03-30 | 广东美芝制冷设备有限公司 | Closed rotary compressor |
| CN102734168A (en) * | 2011-04-08 | 2012-10-17 | 广东美芝制冷设备有限公司 | Oil supply hole structure of rotary compressor eccentric crankshaft |
| CN102797680A (en) * | 2012-07-03 | 2012-11-28 | 珠海格力电器股份有限公司 | Eccentric variable crankshaft and rotary compressor using same |
| JP2014098382A (en) * | 2012-10-16 | 2014-05-29 | Mitsubishi Electric Corp | Rotary compressor |
| CN204152793U (en) * | 2014-10-15 | 2015-02-11 | 广东美芝制冷设备有限公司 | The bent axle of rotary compressor and there is its rotary compressor |
| CN204704115U (en) * | 2015-06-01 | 2015-10-14 | 刘志庆 | Bent axle on a kind of rotary compressor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201851A (en) * | 2015-10-30 | 2015-12-30 | 浙江百达精工股份有限公司 | Crankshaft of air condition compressor |
| CN105201851B (en) * | 2015-10-30 | 2017-11-07 | 浙江百达精工股份有限公司 | A kind of bent axle of compressor of air conditioner |
| CN109209878A (en) * | 2018-10-25 | 2019-01-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft, pump assembly, rotary compressor and refrigeration equipment |
| CN109209878B (en) * | 2018-10-25 | 2024-05-07 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft, pump body assembly, rotary compressor and refrigeration equipment |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150826 |
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| RJ01 | Rejection of invention patent application after publication |