CN104533795A - Refrigeration equipment and compressor thereof - Google Patents
Refrigeration equipment and compressor thereof Download PDFInfo
- Publication number
- CN104533795A CN104533795A CN201410815141.9A CN201410815141A CN104533795A CN 104533795 A CN104533795 A CN 104533795A CN 201410815141 A CN201410815141 A CN 201410815141A CN 104533795 A CN104533795 A CN 104533795A
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- CN
- China
- Prior art keywords
- equilibrium block
- bent axle
- compressor
- crankshaft
- eccentric segment
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0021—Systems for the equilibration of forces acting on the pump
Abstract
The invention discloses a compressor. The compressor comprises a crankshaft with an eccentric section which is eccentrically arranged relative to a central axis, a roller sleeving the eccentric section of the crankshaft, and a counter balance arranged between the roller and the eccentric section of the crankshaft, and used for enabling the gravity centre line of the eccentric section of the crankshaft to be close to the central axis of the crankshaft. According to the compressor, the gravity centre line of the eccentric section of the crankshaft is enabled to be close to the central axis of the crankshaft by arranging the counter balance between the roller and the eccentric section of the crankshaft, and the distance from the gravity centre of the eccentric section to the central axis of the crankshaft is reduced, thus during the rotation of the crankshaft, the inertia moment of the eccentric section of the crankshaft is avoided, and the problem of compressor vibration caused by the unbalance of the crankshaft is reduced. The invention further discloses refrigeration equipment with the compressor.
Description
Technical field
The present invention relates to an electro-technical field, in particular, relate to a kind of chiller plant and compressor thereof.
Background technique
The motor of rotary compressor is without the need to being converted to the to-and-fro motion of piston by the rotary motion of rotor, but directly driven rotary piston has rotated the compression to refrigerant vapor.
At present, the basic structure of rotary compressor is that after crankshaft eccentric circle cylindrical puts rolling piston, bent axle drives rolling piston to rotate in cylinder chamber body-internal-circulation, thus forms the compression to gas.
Under bad working environments, often there will be crankshaft eccentric circle eccentric wear phenomenon, the gap mainly due to eccentric circle and piston space is less, stressed larger time, lubricant oil can not well lubrication friction pair, cause wearing and tearing, thus cause the rising of compressor horsepower.In addition, rolling piston compressor existing structure is all crankshaft eccentric structures, and this structure causes eccentric circle portion to form larger inertial centrifugal force, and in compressor operating process, this power forms moment to bearing, makes bearing pair be subject to larger radial force.And compressor displacement is larger, offset is larger, and inertial force is larger thereupon, causes the problem that compressor shakes, also higher to compressor arrangement reliability requirement.
Therefore, how reducing eccentric moment, slow down the vibration problem of compressor, is the current technical issues that need to address of those skilled in the art.
Summary of the invention
In view of this, the invention provides a kind of compressor, reduce eccentric moment, slow down the vibration problem of compressor.Present invention also offers a kind of chiller plant with above-mentioned compressor.
For achieving the above object, the invention provides following technological scheme:
A kind of compressor, comprise the bent axle with the eccentric segment arranged relative to center axis and the roller be set in outside described eccentric segment, its also comprise be arranged on described roller and described bent axle eccentric segment between, for making the center of gravity line of the eccentric segment of described bent axle near the equilibrium block of the central axis of described bent axle.
Preferably, in above-mentioned compressor, the center of gravity line of described eccentric segment and the central axes of described bent axle.
Preferably, in above-mentioned compressor, described equilibrium block comprises the first equilibrium block and the second equilibrium block.
Preferably, in above-mentioned compressor, described first equilibrium block is arranged on outside the eccentric direction of described eccentric segment, described second equilibrium block and described first equilibrium block positioned opposite, and the weight of described second equilibrium block is greater than the weight of described first equilibrium block.
Preferably, in above-mentioned compressor, described first equilibrium block is identical with the size of described second equilibrium block, and the density of described first equilibrium block is less than the density of described second equilibrium block.
Preferably, in above-mentioned compressor, described first equilibrium block and described second equilibrium block are circular arc plate, and described first equilibrium block is symmetrical about the apocenter of the eccentric segment of described bent axle, and described second equilibrium block is symmetrical about the pericenter of the eccentric segment of described bent axle.
Preferably, in above-mentioned compressor, described first equilibrium block and described second equilibrium block is all dismountable is arranged on described bent axle.
Preferably, in above-mentioned compressor, described first equilibrium block and described second equilibrium block are all arranged on described bent axle by screw.
Preferably, in above-mentioned compressor, the length of described first equilibrium block is all identical with the length of described crankshaft eccentric section with the length of described second equilibrium block.
A kind of chiller plant, comprise compressor, wherein, described compressor is the compressor as described in above-mentioned any one.
Known via above-mentioned technological scheme, the invention discloses a kind of compressor, comprise the bent axle with the eccentric segment arranged relative to center axis and the roller being set in crankshaft eccentric section, it also comprises and is arranged between roller and the eccentric segment of bent axle, for making the center of gravity line of the eccentric segment of bent axle near the equilibrium block of the central axis of bent axle.By arranging equilibrium block to make the central axis of center of gravity line near bent axle of crankshaft eccentric section between roller and the eccentric segment of bent axle, reduce the distance of eccentric segment center of gravity to crankshaft center axis, thus when crank rotation, reduce the moment of inertia that crankshaft eccentric section occurs, reduce the problem of the compressor vibrations caused because of bent axle self imbalance.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The structural representation of Fig. 1 crankshaft installed state disclosed in the embodiment of the present invention;
Fig. 2 is crankshaft installed side view of the state disclosed in the embodiment of the present invention;
Fig. 3 is A-A direction view in Fig. 2.
Embodiment
Core of the present invention is to provide a kind of compressor, reduces eccentric moment, slows down the vibration problem of compressor.Another core of the present invention is to provide a kind of chiller plant with above-mentioned compressor.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1-Figure 3, the invention discloses a kind of compressor, comprise the bent axle 1 with the eccentric segment 11 arranged relative to center axis and the roller 2 being set in crankshaft eccentric section 11, its also comprise be arranged on roller 2 and bent axle 1 eccentric segment 11 between, for making the equilibrium block of center of gravity line near the central axis of bent axle 1 of the eccentric segment 11 of bent axle 1.By arranging equilibrium block between roller 2 and the eccentric segment 11 of bent axle 1, to make the central axis of center of gravity line near bent axle 1 of the eccentric segment 11 of bent axle 1, reduce the distance of eccentric segment center of gravity to bent axle 1 central axis, thus when bent axle 1 rotates, avoid the eccentric segment 11 of bent axle 1 to occur moment of inertia, reduce the problem of the compressor vibrations caused because of self imbalance of bent axle 1.Particularly, the eccentric segment 11 that bent axle 1 comprises supporting section 12 and arranges relative to the center axis of supporting section 12, central axis herein refers to the central axis of supporting section.
Preferably, by the center of gravity line of above-mentioned eccentric segment 11 and the central axes of bent axle 1, to avoid the generation of moment of inertia, thus solve the problem of compressor vibrations.
In practice, in order to reduce the size of the rubbing surface of the eccentric segment 11 of roller 2 inner ring and bent axle 1, to reduce wearing and tearing, in the application, equilibrium block is set to two, and is denoted as the first equilibrium block 3 and the second equilibrium block 4.Namely the first equilibrium block 3 and the second equilibrium block 4 are all arranged between roller 2 and eccentric segment 11.
In specific embodiment, outside the eccentric direction of eccentric segment 11 first equilibrium block 3 being arranged on bent axle 1, second equilibrium block 4 is arranged and is the position that the first equilibrium block 3 is relative, in order to the central axes of the center line and bent axle 1 that ensure eccentric segment 11, the weight of guarantee second equilibrium block 4 is needed to be greater than the weight of the first equilibrium block 3, concrete weight for the first equilibrium block 3 and the second equilibrium block 4 can set according to the offset of the eccentric segment 11 of different bent axle 1, as long as ensure the final center of gravity line of bent axle 1 eccentric segment 11 and the central axes of bent axle 1.
In further embodiment, first equilibrium block 3 is set to identical with the size of the second equilibrium block 4, and the density of the first equilibrium block 3 is set to the density being less than the second equilibrium block 4, can ensure that the quality of the first equilibrium block 3 is less than the quality of the second equilibrium block 4 by above-mentioned setting.The core of the application is the center of gravity line of eccentric segment 11 and the central axes of bent axle 1 that ensure bent axle 1, therefore, meets the means of this core all in protection domain.
For the ease of the installation to the first equilibrium block 3 and the second equilibrium block 4, in preferred embodiment, first equilibrium block 3 and the second equilibrium block 4 are all set to circular arc plate, concrete concentric with the eccentric segment 11 of bent axle 1, install to ensure that the first equilibrium block 3 and the second equilibrium block 4 all can be fitted with the eccentric segment 11 of bent axle 1.The first equilibrium block 3 in the application and the apocenter symmetry about the eccentric segment 11 of bent axle 1, particularly, one end that in the application, the eccentric segment 11 of bent axle 1 is far away apart from crankshaft center axial location is apocenter, and the second equilibrium block 4 is symmetrical about the pericenter of the eccentric segment 11 of bent axle 1, one end that in the application, the eccentric segment 11 of bent axle 1 is nearer apart from crankshaft center axial location is pericenter.
On the basis of technique scheme, the first equilibrium block 3 in the application and the second equilibrium block 4 is all dismountable is arranged on bent axle 1.First equilibrium block 3 and the second equilibrium block 4 are set to dismountable structure, after a long time use, are changed if the first equilibrium block 3 and the second equilibrium block 4 can disassemble after wearing and tearing.Dismountable mode can improve the working life of this device, reduces costs.
Particularly, both the first equilibrium block 3 and the second equilibrium block 4 are all arranged on bent axle 1 by screw.It will be appreciated by persons skilled in the art that and be not limited in this kind of Placement in practice, if can ensure the first equilibrium block 3 and the second equilibrium block 4 all can with bent axle 1 releasable connection.
In order to optimize technique scheme further, in the application, the length of the first equilibrium block 3 and the length of the second equilibrium block 4 are all set to identical with the length of bent axle 1 eccentric segment 11, to slow down the generation of eccentric segment 11 moment of inertia of bent axle 1 further.
In actual mechanical process, reduced by former bent axle 1 eccentric segment 11 external diameter, roller 2 inner circle becomes large, reduces the surface of contact of roller 2 end face and metal (upper end face, can reduce friction; Crankshaft eccentric section 11 is installed the first equilibrium block 3 and the second equilibrium block 4, first equilibrium block 3 and the second equilibrium block 4 adopt different materials to make the mass M 2 of mass M 1< second equilibrium block 4 of the first equilibrium block 3, M1 and M2 different according to the concrete model compressor counterweight different choice of application, calculating makes eccentric segment 11 center of gravity line drop on the central axis place of bent axle 1, thus eliminates the inertial centrifugal force of former eccentric segment.
The invention also discloses a kind of chiller plant, comprise compressor, wherein, this compressor is any one compressor disclosed in above-described embodiment, and therefore, the chiller plant with this compressor also has above-mentioned all technique effects, and this is no longer going to repeat them.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a compressor, comprise the bent axle (1) with the eccentric segment (11) arranged relative to center axis and the roller (2) being set in described eccentric segment (11) outside, it is characterized in that, also comprise be arranged on described roller (2) and described bent axle (1) eccentric segment (11) between, for making the center of gravity line of the eccentric segment of described bent axle (1) (11) near the equilibrium block of the central axis of described bent axle (1).
2. compressor according to claim 1, is characterized in that, the center of gravity line of described eccentric segment (11) and the central axes of described bent axle (1).
3. compressor according to claim 2, is characterized in that, described equilibrium block comprises the first equilibrium block (3) and the second equilibrium block (4).
4. compressor according to claim 3, it is characterized in that, described first equilibrium block (3) is arranged on outside the eccentric direction of described eccentric segment (11), described second equilibrium block (4) is positioned opposite with described first equilibrium block (3), and the weight of described second equilibrium block (4) is greater than the weight of described first equilibrium block (3).
5. compressor according to claim 4, it is characterized in that, described first equilibrium block (3) is identical with the size of described second equilibrium block (4), and the density of described first equilibrium block (3) is less than the density of described second equilibrium block (4).
6. compressor according to claim 5, it is characterized in that, described first equilibrium block (3) and described second equilibrium block (4) are circular arc plate, and described first equilibrium block (3) is symmetrical about the apocenter of the eccentric segment (11) of described bent axle (1), described second equilibrium block (4) is symmetrical about the pericenter of the eccentric segment (11) of described bent axle (1).
7. the compressor according to any one of claim 1-6, is characterized in that, described first equilibrium block (3) is arranged on described bent axle (1) with described second equilibrium block (4) is all dismountable.
8. compressor according to claim 7, is characterized in that, described first equilibrium block (3) and described second equilibrium block (4) are all arranged on described bent axle (1) by screw.
9. compressor according to claim 7, is characterized in that, the length of described first equilibrium block (3) is all identical with the length of described bent axle (1) eccentric segment with the length of described second equilibrium block (4).
10. a chiller plant, comprises compressor, it is characterized in that, described compressor is the compressor as described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410815141.9A CN104533795A (en) | 2014-12-24 | 2014-12-24 | Refrigeration equipment and compressor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410815141.9A CN104533795A (en) | 2014-12-24 | 2014-12-24 | Refrigeration equipment and compressor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104533795A true CN104533795A (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410815141.9A Pending CN104533795A (en) | 2014-12-24 | 2014-12-24 | Refrigeration equipment and compressor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104533795A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255076A (en) * | 2017-06-08 | 2017-10-17 | 中国石油大学(华东) | A kind of radial direction covariant mechanism of screw compressor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63219890A (en) * | 1986-11-05 | 1988-09-13 | Riken Corp | Combined crankshaft for rotary compressor |
| US5237892A (en) * | 1992-07-28 | 1993-08-24 | Tecumseh Products Company | Reduced material crankshaft fabrication |
| CN102242760A (en) * | 2010-05-12 | 2011-11-16 | 武勇 | High-precision eccentricity-adjustable eccentric shaft |
| CN103307089A (en) * | 2012-03-12 | 2013-09-18 | 义乌市黑白矿山机械有限公司 | Weight type self-balancing eccentric shaft |
| CN103527483A (en) * | 2013-07-24 | 2014-01-22 | 安徽美芝精密制造有限公司 | Low-backpressure rotary compressor and refrigeration equipment provided with same |
| CN103836059A (en) * | 2012-11-27 | 2014-06-04 | 义乌新一代矿机科技开发有限公司 | Eccentric shaft with balanced type shaft sleeve |
| CN204553224U (en) * | 2014-12-24 | 2015-08-12 | 珠海凌达压缩机有限公司 | A kind of chiller plant and compressor thereof |
-
2014
- 2014-12-24 CN CN201410815141.9A patent/CN104533795A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63219890A (en) * | 1986-11-05 | 1988-09-13 | Riken Corp | Combined crankshaft for rotary compressor |
| US5237892A (en) * | 1992-07-28 | 1993-08-24 | Tecumseh Products Company | Reduced material crankshaft fabrication |
| CN102242760A (en) * | 2010-05-12 | 2011-11-16 | 武勇 | High-precision eccentricity-adjustable eccentric shaft |
| CN103307089A (en) * | 2012-03-12 | 2013-09-18 | 义乌市黑白矿山机械有限公司 | Weight type self-balancing eccentric shaft |
| CN103836059A (en) * | 2012-11-27 | 2014-06-04 | 义乌新一代矿机科技开发有限公司 | Eccentric shaft with balanced type shaft sleeve |
| CN103527483A (en) * | 2013-07-24 | 2014-01-22 | 安徽美芝精密制造有限公司 | Low-backpressure rotary compressor and refrigeration equipment provided with same |
| CN204553224U (en) * | 2014-12-24 | 2015-08-12 | 珠海凌达压缩机有限公司 | A kind of chiller plant and compressor thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255076A (en) * | 2017-06-08 | 2017-10-17 | 中国石油大学(华东) | A kind of radial direction covariant mechanism of screw compressor |
| CN107255076B (en) * | 2017-06-08 | 2019-05-31 | 中国石油大学(华东) | A kind of radial covariant mechanism of screw compressor |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150422 |