CN110500280B - Balance weight structure and compressor thereof - Google Patents
Balance weight structure and compressor thereof Download PDFInfo
- Publication number
- CN110500280B CN110500280B CN201910898418.1A CN201910898418A CN110500280B CN 110500280 B CN110500280 B CN 110500280B CN 201910898418 A CN201910898418 A CN 201910898418A CN 110500280 B CN110500280 B CN 110500280B
- Authority
- CN
- China
- Prior art keywords
- permeable membrane
- compressor
- refrigerant
- cavity
- solid
- 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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Links
- 239000012528 membrane Substances 0.000 claims abstract description 49
- 239000007787 solid Substances 0.000 claims abstract description 34
- 239000003507 refrigerant Substances 0.000 claims abstract description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims 1
- 239000012466 permeate Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003204 osmotic effect Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- F04C29/0028—Internal leakage control
-
- 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
- F04C29/06—Silencing
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/12—Vibration
- F04C2270/125—Controlled or regulated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
Abstract
The invention provides a balance block structure and a compressor thereof, comprising a solid part, wherein a permeable membrane structure is arranged on the outer side wall surface of the solid part, a first cavity is formed between the outer side of the solid part and the inner side of the permeable membrane structure, and refrigerating oil or refrigerant is filled in the first cavity.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a balance block structure and a compressor thereof.
Background
In rotary compressors, in order to eliminate centrifugal forces and centrifugal moments caused by eccentric masses such as bellcrank and rollers in the compressor shaft system, mass blocks, called weights, are usually provided on the shaft system, usually on the motor rotor. The balance weight can be manufactured separately and then fixed on the rotor; the balance weight and the aluminum end ring can be integrally formed when the aluminum end ring of the rotor is die-cast.
The mass of the counterweight is critical to the overall performance of the overall compressor. At present, in the running process of a rotary compressor, the phenomenon of rotor sweeping caused by excessive vibration and excessive noise of a compressor shafting or excessive deflection of a crankshaft due to improper balancing of a balancing block (excessive or insufficient balancing block mass) is often caused.
Accordingly, there is a need for a weight structure and a compressor thereof that can solve the above problems.
Disclosure of Invention
The invention provides a balance block structure and a compressor thereof, which can realize the balance free adjustment of the whole shaft system in the compressor, effectively reduce the whole noise vibration of the compressor, supplement the refrigeration oil or refrigerant reduced by the system operation leakage, and have the characteristics of good balance and low noise.
The first technical scheme of the invention is realized as follows:
the balance block structure comprises a solid part, a permeable membrane structure is arranged on the outer side wall surface of the solid part, a first cavity is formed between the outer side of the solid part and the inner side of the permeable membrane structure, and refrigerating oil or refrigerant is filled in the first cavity.
As a preferable technical scheme, the solid part is a solid block made of common metal or nonmetal materials such as iron, copper and the like.
As a preferable technical scheme, the solid part is an arc-shaped block which is arranged in an arc shape.
As a preferred embodiment, the permeable membrane structure covers the entire outer side wall or a partial wall surface of the solid portion.
As a preferable technical scheme, the permeable membrane structure is covered on the outer side wall surface of the solid part through a permeable membrane fixing bracket.
As a preferred embodiment, the permeable membrane structure comprises one or more permeable membranes.
As a preferable technical scheme, a second cavity is formed between every two adjacent permeable membranes, and each second cavity is filled with refrigerating oil or refrigerant.
The second technical scheme of the invention is realized as follows:
the balance weight comprises at least one balance weight structure.
The third technical scheme of the invention is realized as follows:
the rotor assembly comprises a rotor, and at least one of two ends of the rotor is provided with the balance weight.
The fourth technical scheme of the invention is realized as follows:
the compressor comprises a shell assembly, wherein an air suction pipe, a pump body assembly, a stator and the rotor assembly are arranged in the shell assembly.
By adopting the technical scheme, the invention has the beneficial effects that:
the balance block structure comprises a solid part and a permeable membrane structure which are arranged inside and outside, wherein the solid part and the permeable membrane structure are filled with frozen oil or filler, when the axial system in the compressor is unbalanced, the deflection of the crankshaft is increased, so that the centripetal force suffered by the frozen oil or refrigerant in the balance block structure is increased, the centripetal force is mainly provided by the permeable membrane outside the solid part, and when the centripetal force is overlarge, the frozen oil or refrigerant can permeate the permeable membrane to permeate out, so that the total mass of the balance block structure is reduced, the deflection of the crankshaft is reduced, and the whole axial system returns to the balance state; the invention can carry out self-regulation according to the magnitude of the centripetal force, realizes the balance self-regulation of the whole shafting of the rotary compressor, improves the balance of the invention, avoids the excessive vibration noise or overlarge deflection of a crankshaft caused by improper balancing of the balance weight, effectively reduces the integral noise vibration of the rotary compressor, reduces the noise when the rotary compressor operates, and simultaneously, as the system operates, the refrigerating oil or refrigerant in the compressor is often reduced due to leakage, the refrigerating oil in the balance weight structure is exuded, and the refrigerating oil or refrigerant required in the compressor is supplemented.
Because the permeable membrane structure comprises one or more layers of permeable membranes, when the permeable membranes are multi-layered, the passing pressure of each layer of permeable membrane corresponds to the magnitude of the deflection value of the crankshaft, when the deflection of the crankshaft in the compressor is smaller, the outermost permeable membrane seeps refrigerating oil or refrigerant, and as the deflection of the crankshaft increases, the refrigerating oil or refrigerant seeps through the inner permeable membrane again, and the thickness of each layer of permeable membrane can be determined according to the designed osmotic pressure.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic view of the structure of the permeable membrane of the present invention covering the entire outer sidewall surface of the solid section;
FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;
FIG. 3 is a schematic view of the structure of the permeable membrane of the present invention when it is a plurality of layers;
FIG. 4 is a cross-sectional view taken along the direction B-B in FIG. 3;
FIG. 5 is a schematic view of the structure of the permeable membrane structure of the present invention covering a partial outer sidewall surface of the solid section;
FIG. 6 is a cross-sectional view taken along the direction C-C in FIG. 5;
FIG. 7 is a schematic diagram of a conventional counterweight structure;
fig. 8 is a schematic structural view of a rotary compressor.
Wherein: 1. a solid portion; 2. a permeable membrane; 3. a first cavity; 4. a permeable membrane fixation support; 5. a second cavity; 6. a balance weight; 7. a rotor; 8. a housing assembly; 9. an air suction pipe; 10. a pump body assembly; 11. and a stator.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1, fig. 2 and fig. 7 together, the balance weight structure comprises a solid portion 1, a permeable membrane structure is arranged on the outer side wall surface of the solid portion 1, a first cavity 3 is formed between the outer side of the solid portion 1 and the inner side of the permeable membrane structure, and the first cavity 3 is filled with refrigerating oil or refrigerant.
The solid part 1 is a solid block made of a common metal or nonmetal material such as iron and copper.
The solid part 1 is an arc-shaped block arranged in an arc shape.
As shown in fig. 3 and 5 together, the permeable membrane structure covers the entire outer side wall or a partial wall surface of the solid portion 1.
As shown in fig. 6, the permeable membrane structure is covered on the outer side wall surface of the solid part 1 by a permeable membrane fixing bracket 4.
As shown in fig. 4, the permeable membrane structure includes one or more permeable membranes 2.
A second cavity 5 is formed between every two adjacent permeable membranes 2, and each second cavity 5 is filled with refrigerating oil or refrigerant, when the permeable membranes 2 are multi-layered, the passing pressure of each permeable membrane 2 corresponds to the magnitude of the deflection value of the crankshaft, when the deflection of the crankshaft in the compressor is smaller, the outermost permeable membrane 2 seeps out refrigerating oil or refrigerant, and as the deflection of the crankshaft increases, the refrigerating oil or refrigerant seeps out through the inner permeable membrane 2, and the thickness of each permeable membrane 2 can be determined according to the designed osmotic pressure.
Example two
The counterweight 6 comprises at least one of the counterweight structures described above.
Example III
The rotor assembly comprises a rotor 7, and at least one of two ends of the rotor 7 is provided with the balance weight 6.
Example IV
As shown in fig. 8, the compressor includes a housing assembly 8, and an intake pipe 9, a pump body assembly 10, a stator 11, and the above-mentioned rotor assembly are disposed inside the housing assembly 8.
When the internal shaft system of the compressor is unbalanced, the deflection of the crankshaft is increased, so that the centripetal force suffered by the frozen oil or the refrigerant in the balance block structure is increased, the centripetal force is mainly provided by the permeable membrane 2 at the outer side of the solid part 1, and when the centripetal force is overlarge, the frozen oil or the refrigerant can permeate out through the permeable membrane 2, so that the total mass of the balance block structure is reduced, the deflection of the crankshaft is further reduced, and the whole shaft system returns to the balance state; the invention can carry out self-regulation according to the magnitude of the centripetal force, realizes the balance self-regulation of the whole shafting of the rotary compressor, improves the balance of the invention, avoids the excessive vibration noise or overlarge deflection of a crankshaft caused by improper balancing of the balance weight 6, effectively reduces the integral noise vibration of the rotary compressor, reduces the noise when the rotary compressor operates, and simultaneously, as the system operates, the refrigerating oil or refrigerant in the compressor is often reduced due to leakage, the refrigerating oil in the balance weight structure is exuded, and the refrigerating oil or refrigerant required in the compressor is supplemented.
Compared with the existing rotary compressor, the rotary compressor adopting the balance block structure has better balance, can realize self-adjustment, has low noise during operation, and simultaneously, as the system operates, the refrigerating oil or the refrigerant in the compressor is often reduced due to leakage, the refrigerating oil in the balance block structure is exuded, and the refrigerating oil or the refrigerant needed in the compressor is supplemented.
In summary, the balance weight structure and the compressor thereof provided by the invention can realize the balance free adjustment of the whole shaft system in the compressor, effectively reduce the overall noise vibration of the compressor, supplement the refrigeration oil or the refrigerant reduced due to the system operation leakage, and have the characteristics of good balance and low noise.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The balance weight structure is characterized by comprising a solid part, wherein a permeable membrane structure is arranged on the outer side wall surface of the solid part, a first cavity is formed between the outer side of the solid part and the inner side of the permeable membrane structure, and refrigerating oil or refrigerant is filled in the first cavity.
2. The weight structure of claim 1, wherein the solid portion is a solid block made of a common metal or non-metal material such as iron or copper.
3. The weight structure of claim 1, wherein the solid portion is an arc-shaped block disposed in an arc shape.
4. The weight structure of claim 1, wherein the permeable membrane structure covers the entire outer sidewall or a partial wall of the solid portion.
5. The weight structure of claim 4, wherein the permeable membrane structure is covered on the outer sidewall of the solid portion by a permeable membrane fixing bracket.
6. The weight structure of claim 1, wherein the permeable membrane structure comprises one or more permeable membranes.
7. The weight structure of claim 6, wherein a second cavity is formed between each two adjacent permeable membranes, and each second cavity is filled with a refrigerant or a refrigerant.
8. A counterweight comprising at least one counterweight structure as claimed in claims 1-7.
9. A rotor assembly comprising a rotor having at least one end provided with a counterweight according to claim 8.
10. A compressor comprising a housing assembly having an intake tube, a pump body assembly, a stator, and the rotor assembly of claim 9 disposed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910898418.1A CN110500280B (en) | 2019-09-23 | 2019-09-23 | Balance weight structure and compressor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910898418.1A CN110500280B (en) | 2019-09-23 | 2019-09-23 | Balance weight structure and compressor thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110500280A CN110500280A (en) | 2019-11-26 |
| CN110500280B true CN110500280B (en) | 2023-12-08 |
Family
ID=68592434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910898418.1A Active CN110500280B (en) | 2019-09-23 | 2019-09-23 | Balance weight structure and compressor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110500280B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5645407A (en) * | 1995-05-25 | 1997-07-08 | Mechanical Technology Inc. | Balanced single stage linear diaphragm compressor |
| JP2003293952A (en) * | 2002-04-01 | 2003-10-15 | Sanyo Electric Co Ltd | Refrigerant compressor and balance weight for refrigerant compressor |
| CN203967937U (en) * | 2014-06-17 | 2014-11-26 | 广东美芝制冷设备有限公司 | The compressor with external rotor electric machine |
| CN106337812A (en) * | 2016-10-21 | 2017-01-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Balance block and rotor assembly, shaft assembly and compressor with balance block |
| WO2018035732A1 (en) * | 2016-08-24 | 2018-03-01 | 广东美芝制冷设备有限公司 | Motor rotor for use in compressor, motor for use in compressor, and compressor |
| CN109185151A (en) * | 2018-11-07 | 2019-01-11 | 珠海格力电器股份有限公司 | Vibration damping balance block, compressor and refrigeration equipment |
| CN210599429U (en) * | 2019-09-23 | 2020-05-22 | 珠海凌达压缩机有限公司 | Balance block structure, balance block, rotor assembly and compressor |
-
2019
- 2019-09-23 CN CN201910898418.1A patent/CN110500280B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5645407A (en) * | 1995-05-25 | 1997-07-08 | Mechanical Technology Inc. | Balanced single stage linear diaphragm compressor |
| JP2003293952A (en) * | 2002-04-01 | 2003-10-15 | Sanyo Electric Co Ltd | Refrigerant compressor and balance weight for refrigerant compressor |
| CN203967937U (en) * | 2014-06-17 | 2014-11-26 | 广东美芝制冷设备有限公司 | The compressor with external rotor electric machine |
| WO2018035732A1 (en) * | 2016-08-24 | 2018-03-01 | 广东美芝制冷设备有限公司 | Motor rotor for use in compressor, motor for use in compressor, and compressor |
| CN106337812A (en) * | 2016-10-21 | 2017-01-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Balance block and rotor assembly, shaft assembly and compressor with balance block |
| CN109185151A (en) * | 2018-11-07 | 2019-01-11 | 珠海格力电器股份有限公司 | Vibration damping balance block, compressor and refrigeration equipment |
| CN210599429U (en) * | 2019-09-23 | 2020-05-22 | 珠海凌达压缩机有限公司 | Balance block structure, balance block, rotor assembly and compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110500280A (en) | 2019-11-26 |
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