CN105221428B - Rotary compressor and crankshaft assembly thereof - Google Patents
Rotary compressor and crankshaft assembly thereof Download PDFInfo
- Publication number
- CN105221428B CN105221428B CN201410305790.4A CN201410305790A CN105221428B CN 105221428 B CN105221428 B CN 105221428B CN 201410305790 A CN201410305790 A CN 201410305790A CN 105221428 B CN105221428 B CN 105221428B
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- China
- Prior art keywords
- eccentric part
- crankshaft
- crank assemblby
- rotary compressor
- balance
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- 230000001815 facial effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000002271 resection Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Applications Or Details Of Rotary Compressors (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The invention discloses a crankshaft assembly, which comprises a crankshaft body, wherein an eccentric part is arranged at the end part of the crankshaft body, the top edge of the axial cross section of the eccentric part is arc-shaped, balance notches are oppositely arranged at two sides of a flange of the eccentric part, a plane determined by a connecting line from the vertex of the outer edge of the eccentric part to the rotation center of the eccentric part and the axis of the crankshaft body is symmetrical by taking the plane as a reference plane. In the working process, the two symmetrical balance notches can effectively shorten the distance between the mass center of the eccentric part and the rotating center of the eccentric part and reduce the balance weight of the compressor, so that the friction contact surface between the crankshaft assembly and the roller is effectively reduced on the premise of ensuring the structural strength and the stress area of the crankshaft, the abrasion of relevant matching parts is reduced, and the operation reliability and the service life of the rotary compressor are correspondingly improved. The invention also discloses a rotary compressor applying the crankshaft assembly.
Description
Technical field
The present invention relates to compressor corollary equipment technical field, in particular to a kind of crank assemblby.The invention further relates to one
Kind applies the rotary compressor of the crank assemblby.
Background technique
Rotary compressor is that air-conditioning and refrigerator etc. need to freeze the essential component part of electrical equipment of operation, crankshaft
Primary clustering of the assembly as rotary compressor, service performance are also increasingly subject to the extensive concern of people.
At present in existing rotary compressor assembly use process, running at high speed for crank assemblby is rotary compression
The important driving source of the vibration of machine, while the rotation of crankshaft high-speed is so that the rotary inertia of pump assembly is larger, although being provided with
Counterweight, but ideal equilibrium state can not be reached, cause compressor body vibration still larger；The bias of crankshaft simultaneously
The comprehensive engagement of portion and roller will directly affect the mechanical efficiency of the pump housing, increases moment of friction and friction power loss, is especially disliking
Under bad operating condition the direct total quality negatively affected and then influence compressor will be generated on the reliability of compressor.
Therefore, the vibration for how reducing rotary compressor reduces its component wear, improves its operational reliability and extends
Its service life is the important technological problems that those skilled in the art need to solve at present.
Summary of the invention
The object of the present invention is to provide a kind of crank assemblby, which can reduce the vibration of rotary compressor,
Its component wear is reduced, its operational reliability is improved and is prolonged its service life.It is a further object of the present invention to provide one kind to answer
With the rotary compressor of above-mentioned crank assemblby.
In order to solve the above technical problems, the present invention provides a kind of crank assemblby, including crankshaft body, the crankshaft body
End is provided with eccentric part, and the top edge of the axial cross section of the eccentric part is arc, the flange two sides of the eccentric part
It is relatively set with balance notch, line and the crankshaft sheet by eccentric part outer rim vertex to the eccentric part rotation center
The plane that the axis of body determines, the two balances notch are symmetrical as benchmark facial plane using the plane.
Preferably, the edge of the cross section of the balance notch is straight line.
Preferably, the edge of the cross section of the balance notch is that the center of circle is located remotely from where the axis of the crankshaft body
The circular arc of side.
The present invention also provides a kind of rotary compressor, including shell, the enclosure interior is provided with mutually matched song
Axle assembly and roller, the crank assemblby are specially crank assemblby as described in any one of the above embodiments.
Relatively above-mentioned background technique, crank assemblby provided by the present invention, including crankshaft body, the end of the crankshaft body
Portion is provided with eccentric part, and the top edge of the axial cross section of the eccentric part is arc, the flange two sides phase of the eccentric part
To balance notch is provided with, by the line and the crankshaft body on eccentric part outer rim vertex to the eccentric part rotation center
Axis determine plane, it is described two balance notch it is symmetrical as benchmark facial plane using the plane.It is symmetrically arranged in the course of work
The two balance notches can effectively shorten the mass center of the eccentric part and rotate distance between center, and reduce compressor
Counterweight, to be effectively reduced between crank assemblby and roller under the premise of ensuring crankshaft structure intensity and its forced area
Frictional contact surface, reduces the abrasion of related matching piece, and makes the operational reliability of the rotary compressor and its use the longevity
Life is correspondinglyd increase.
In another preferred embodiment of the invention, the edge of the cross section of the balance notch is straight line.This kind of cross section
Edge be that the balance notch of linear structure can guarantee the overall stability of the eccentric part, and process implementing process is more simple
Easy row, operation difficulty is lower, and processing efficiency is higher.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the assembling structure schematic diagram of crank assemblby provided by a kind of specific embodiment of the present invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is the assembling structure schematic diagram of crank assemblby provided by another specific embodiment of the present invention；
Fig. 4 is the side view of Fig. 3.
Specific embodiment
Core of the invention is to provide a kind of crank assemblby, which can reduce the vibration of rotary compressor,
Its component wear is reduced, its operational reliability is improved and is prolonged its service life；Meanwhile providing a kind of above-mentioned crank assemblby of application
Rotary compressor.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Fig. 1 and Fig. 2 are please referred to, Fig. 1 is the assembling structure of crank assemblby provided by a kind of specific embodiment of the present invention
Schematic diagram；Fig. 2 is the side view of Fig. 1.
In a specific embodiment, crank assemblby provided by the present invention, including crankshaft body 11, the end of crankshaft body 11
Portion is provided with eccentric part 12, and the top edge of the axial cross section of eccentric part 12 is arc, and the flange two sides of eccentric part 12 are opposite
It is provided with balance notch 121, by 12 outer rim vertex of eccentric part to the line of 12 rotation center of eccentric part and the axis of crankshaft body 11
The plane that line determines, two balance notches 121 are symmetrical as benchmark facial plane using the plane.In the course of work, symmetrically arranged two is flat
Weighing apparatus notch 121 can effectively shorten the mass center of eccentric part 12 and rotate distance between center, and the balance for reducing compressor is matched
Weight, so that the friction effectively reduced between crank assemblby and roller under the premise of ensuring crankshaft structure intensity and its forced area connects
Contacting surface, reduces the abrasion of related matching piece, and the operational reliability of the rotary compressor and its service life are able to
It correspondinglys increase.
Further, the edge for balancing the cross section of notch 121 is straight line.The edge of this kind of cross section is linear structure
Balance notch 121 can guarantee the overall stability of eccentric part 12, and process implementing process is relatively simple easy, operation difficulty compared with
Low, processing efficiency is higher.
Fig. 3 and Fig. 4 are please referred to, Fig. 3 is the assembly knot of crank assemblby provided by another specific embodiment of the present invention
Structure schematic diagram；Fig. 4 is the side view of Fig. 3.
On the other hand, the edge for balancing the cross section of notch 121 is that the center of circle is located remotely from where the axis of crankshaft body 11
The circular arc of side.The edge of this kind of cross section is that the balance notch 121 of circular arc can further increase the two sides material of eccentric part 12
Expect resection, so that the mass center for further shortening eccentric part 12 rotates the distance between center, and further decreases compressor
Counterweight.
In a specific embodiment, rotary compressor provided by the present invention, including shell, the enclosure interior setting
There are mutually matched crank assemblby and roller, the crank assemblby is specially the crank assemblby as described in foregoing embodiments.The rotation
The structural vibration of rotary compressor and its component wear are smaller, and its service life is longer, run relatively stable reliable.
In summary, the end of crank assemblby provided in the present invention, including crankshaft body, the crankshaft body is provided with
The top edge of eccentric part, the axial cross section of the eccentric part is arc, and the flange two sides of the eccentric part are relatively set with
Notch is balanced, the axis by the line and the crankshaft body on eccentric part outer rim vertex to the eccentric part rotation center is true
Fixed plane, the two balances notch are symmetrical as benchmark facial plane using the plane.In the course of work, symmetrically arranged two is described flat
Weighing apparatus notch can effectively shorten the mass center of the eccentric part and rotate distance between center, and the balance for reducing compressor is matched
Weight, so that the friction effectively reduced between crank assemblby and roller under the premise of ensuring crankshaft structure intensity and its forced area connects
Contacting surface, reduces the abrasion of related matching piece, and the operational reliability of the rotary compressor and its service life are able to
It correspondinglys increase.
In addition, the rotary compressor provided by the invention using above-mentioned crank assemblby, the structure of the rotary compressor
Vibration and its component wear are smaller, and its service life is longer, run relatively stable reliable.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
It has been carried out in detail to crank assemblby provided by the present invention and using the rotary compressor of the crank assemblby above
It is thin to introduce.Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention.It should be pointed out that for the ordinary skill of the art
, without departing from the principle of the present invention, can be with several improvements and modifications are made to the present invention for personnel, these improvement
It is also fallen within the protection scope of the claims of the present invention with modification.
Claims (4)
1. a kind of crank assemblby, it is characterised in that: including crankshaft body, the end of the crankshaft body is provided with eccentric part, institute
The top edge for stating the axial cross section of eccentric part is arc, and the flange two sides of the eccentric part are relatively set with balance notch,
The plane determined by eccentric part outer rim vertex to the line of the eccentric part rotation center and the axis of the crankshaft body,
The two balance notches are symmetrical as benchmark facial plane using the plane.
2. crank assemblby as described in claim 1, it is characterised in that: the edge of the cross section of the balance notch is straight line.
3. crank assemblby as described in claim 1, it is characterised in that: the edge of the cross section of the balance notch is center of circle position
In the circular arc of the axis side far from the crankshaft body.
4. a kind of rotary compressor, including shell, the enclosure interior is provided with mutually matched crank assemblby and roller,
Be characterized in that: the crank assemblby is specially crank assemblby as claimed any one in claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410305790.4A CN105221428B (en) | 2014-06-30 | 2014-06-30 | Rotary compressor and crankshaft assembly thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410305790.4A CN105221428B (en) | 2014-06-30 | 2014-06-30 | Rotary compressor and crankshaft assembly thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105221428A CN105221428A (en) | 2016-01-06 |
| CN105221428B true CN105221428B (en) | 2019-01-25 |
Family
ID=54990612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410305790.4A Active CN105221428B (en) | 2014-06-30 | 2014-06-30 | Rotary compressor and crankshaft assembly thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105221428B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203130513U (en) * | 2013-03-05 | 2013-08-14 | 安徽美芝精密制造有限公司 | Crankshaft component for rotary compressor and rotary compressor with crankshaft component |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6695601B2 (en) * | 2002-06-07 | 2004-02-24 | Tecumseh Products Company | Self-balanced compressor crankshaft |
| CN1601127A (en) * | 2003-09-27 | 2005-03-30 | 乐金电子(天津)电器有限公司 | Crankshaft structure of revolving type compressor |
| JP2011179453A (en) * | 2010-03-03 | 2011-09-15 | Panasonic Corp | Rotary compressor device |
| CN202789529U (en) * | 2012-07-03 | 2013-03-13 | 珠海格力电器股份有限公司 | Eccentric variable crankshaft and rotary compressor using same |
| CN203500011U (en) * | 2013-07-31 | 2014-03-26 | 广东美芝制冷设备有限公司 | Crankshaft component for rotary compressor |
| CN203926020U (en) * | 2014-06-30 | 2014-11-05 | 珠海凌达压缩机有限公司 | Rotary compressor and crankshaft assembly thereof |
-
2014
- 2014-06-30 CN CN201410305790.4A patent/CN105221428B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203130513U (en) * | 2013-03-05 | 2013-08-14 | 安徽美芝精密制造有限公司 | Crankshaft component for rotary compressor and rotary compressor with crankshaft component |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105221428A (en) | 2016-01-06 |
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