CN115199546A - Rotary vibration damper and vertical rotor compressor with same - Google Patents
Rotary vibration damper and vertical rotor compressor with same Download PDFInfo
- Publication number
- CN115199546A CN115199546A CN202110379419.2A CN202110379419A CN115199546A CN 115199546 A CN115199546 A CN 115199546A CN 202110379419 A CN202110379419 A CN 202110379419A CN 115199546 A CN115199546 A CN 115199546A
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- China
- Prior art keywords
- compressor
- vibration damping
- torsional vibration
- vibration damper
- vibration
- 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.)
- Pending
Links
- 238000013016 damping Methods 0.000 claims abstract description 60
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims 1
- 238000005096 rolling process Methods 0.000 description 13
- 230000009467 reduction Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000737 periodic effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
-
- 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
- F04C2240/00—Components
- F04C2240/80—Other components
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a rotary vibration damping device and a vertical rotor type compressor with the same, wherein the rotary vibration damping device is installed in the compressor and comprises a vibration damping main body and a connecting piece, and the vibration damping main body is fixedly connected with the compressor through the connecting piece and is used for damping the compressor. According to the invention, the rotary vibration damper is additionally arranged in the compressor, so that the vibration energy generated when the compressor runs is transferred to the rotary vibration damper, thereby effectively reducing the vibration of the compressor, reducing the noise and increasing the adaptability of the compressor.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a rotary vibration damper and a vertical rotor compressor with the same.
Background
Rolling rotor compressors are widely used in various electrical apparatuses, such as: refrigerators, air conditioners, refrigerators, heat pump water heaters, and the like, mainly function to compress refrigerant gas from a low-temperature low-pressure state to a high-temperature high-pressure state.
The rolling rotor type compressor comprises a cylinder, a rolling piston, a sliding sheet and a cylinder end cover. Wherein the rolling piston rolls on the inner circumferential surface of the cylinder. The sliding vane reciprocates along the radial direction of the rotor and is always in contact with the outer circumferential surface of the rolling piston. The inner circumference of the cylinder, the two cylinder end covers and the rolling piston form a closed cavity, and the position of the closed cavity changes along with the rotation of the rotor. The rolling piston rotates in the cylinder, and the sliding sheet divides the closed cavity into a low-pressure cavity and a high-pressure cavity. An air inlet and an air outlet are formed in the air cylinder, the low-pressure cavity is communicated with the air inlet, and the high-pressure cavity is communicated with the air outlet.
The rolling rotor compressor can generate periodic air suction and exhaust pressure difference in the operation process, the pressure difference can cause the rolling rotor compressor to generate periodic torque fluctuation, the rolling rotor compressor is forced to generate periodic vibration, the vibration in the rotation direction is particularly prominent, noise is easy to generate, and the adaptability of the rolling rotor compressor can be limited.
Disclosure of Invention
The invention aims to provide a rotary vibration damping device and a vertical rotor type compressor with the same, and aims to solve the problems that in the prior art, a rolling rotor type compressor vibrates greatly in the rotary direction, noise is easy to generate, and the adaptability of the rolling rotor type compressor is limited. The specific technical scheme is as follows:
in a first aspect, the present invention provides a rotary vibration damping device, installed in a compressor, comprising a vibration damping body and a connecting member, wherein the vibration damping body is fixedly connected to the compressor through the connecting member, and is used for damping vibration of the compressor.
Optionally, the natural mode frequency of the torsional vibration damper is equal to the operating frequency of the compressor, and the vibration direction of the natural mode shape is the same as the rotation direction of the compressor.
Optionally, the vibration damping body is a ring with an opening in a C shape, and is disposed around the periphery of the cylinder of the compressor.
Optionally, the inner diameter of the circular ring is larger than the outer diameter of the cylinder.
Optionally, the connecting piece is provided with a plurality of, and a plurality of connecting pieces are distributed on one surface of the vibration damping main body, which is used for being connected with the compressor.
Optionally, the connecting piece is provided with 3, 3 the connecting piece equidistance sets up.
Optionally, the connecting piece is a Z-shaped connecting piece, and connecting holes are formed at two ends of the Z-shaped connecting piece and are respectively used for fixedly connecting the vibration reduction main body and the compressor.
Optionally, the connecting hole is a threaded hole, and the connecting piece is fixedly connected with the vibration reduction main body and the compressor through bolts.
Optionally, the damping body is made of steel, cast iron, copper or aluminum.
In a second aspect, the present invention provides a vertical rotor compressor installed in an air conditioner, comprising an upper cylinder cover, a lower cylinder cover, a cylinder, and the rotary vibration damping device according to the first aspect, wherein the rotary vibration damping device is disposed around the cylinder and is fixedly connected to the upper cylinder cover.
The invention provides a rotary vibration damping device and a vertical rotor compressor with the same, which have the following beneficial effects: the rotary vibration damping device is arranged in the compressor and comprises a vibration damping main body and a connecting piece, wherein the vibration damping main body is fixedly connected with the compressor through the connecting piece and is used for damping the compressor. According to the invention, the rotary vibration damper is additionally arranged in the compressor, so that the vibration energy generated when the compressor runs is transferred to the rotary vibration damper, thereby effectively reducing the vibration of the compressor, reducing the noise and increasing the adaptability of the compressor.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an assembly view of a torsional vibration damper apparatus in a compressor according to one embodiment of the present invention;
FIG. 2 is a schematic view of an assembly of a torsional vibration damper assembly with an upper cylinder head of a compressor according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a torsional vibration damping apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an upper cylinder cover of a compressor according to an embodiment of the present invention.
Wherein the reference numerals of figures 1 to 3 are as follows:
1, mounting a cylinder cover; 11-kidney shaped hole; 12-screwing holes on the upper cylinder cover; 2-lower cylinder cover; 3-a rotary damping device; 31-a damping body; 32-connecting piece.
Detailed Description
The present invention provides a rotary vibration damping device and a vertical type rotary compressor having the same, which will be described in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is provided for the purpose of facilitating and clearly illustrating embodiments of the present invention.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
The invention provides a rotary vibration damping device and a vertical rotor type compressor with the same.
To this end, the present invention provides a torsional vibration damping device, which is installed in a compressor, please refer to fig. 1, fig. 2, fig. 3 and fig. 4, wherein the compressor includes an upper cylinder cover 1, a lower cylinder cover 2 and a cylinder (not shown in the figure), and specifically, the torsional vibration damping device 3 is disposed around the cylinder and is fixedly connected with the upper cylinder cover 1 for damping vibration of the compressor.
Further, the torsional vibration damper 3 comprises a vibration damper body 31 and a connecting piece 32, and the vibration damper body 31 is fixedly connected with the upper cylinder cover 1 of the compressor through the connecting piece 32.
Specifically, damping main part 31 is a ring that has the opening to be the C type, encircles the periphery that sets up at the cylinder of compressor, and damping main part 31 can guarantee for the ring the mode of vibration when gyration vibration damper 3 takes place to vibrate is unanimous with the mode of vibration that the compressor operation produced vibration or is very close, does benefit to both to produce resonance. It should be noted that the opening in the vibration damping body 31 functions to avoid a boss structure outside the cylinder when the torsional vibration damping device 3 is installed in the compressor, so that the installation operation can be performed.
Further, in order to facilitate the installation of the torsional vibration damper 3 in the compressor, the inner diameter of the ring is set to be larger than the outer diameter of the cylinder.
Further, the connecting member 32 is provided in plural, and the plural connecting members 32 are distributed on a surface of the vibration damping body 31 for connecting with the compressor.
Preferably, the connecting pieces 32 are provided with 3, the connecting pieces 32 are arranged at equal intervals, so that the connection stability of the rotary vibration damping device 3 and the compressor can be ensured, and the performance of the rotary vibration damping device 3 can be ensured.
Further, the connecting piece 32 is a Z-shaped connecting piece, and connecting holes are formed in two ends of the Z-shaped connecting piece and are respectively used for being fixedly connected with the vibration damping main body 31 and the upper cylinder cover 1.
Specifically, the connecting hole is a threaded hole, correspondingly, a threaded hole is also formed in the corresponding position of the vibration damping main body 31 and the upper cylinder cover 1, and the connecting piece 32 is fixedly connected with the vibration damping main body 31 and the compressor through a bolt. Preferably, referring to fig. 3, the upper cylinder head upper threaded hole 12 is arranged on the same side of the upper cylinder head upper kidney-shaped hole 11 in the counterclockwise direction. It should be noted that the waist-shaped hole 11 is an installation hole for installing the upper cylinder head 1, and the design of the waist-shaped hole can also effectively reduce the weight of the upper cylinder head 1.
In this embodiment, it is necessary to make the natural modal frequency of the torsional vibration damper 3 equal to the operating frequency of the compressor and the vibration direction of the natural modal frequency vibration mode equal to the rotation direction of the compressor, so as to ensure that the torsional vibration damper 3 generates resonance when the compressor operates. The natural modal frequency of the torsional vibration damper 3 can be adjusted by changing the geometric parameters of the vibration damper body 31, for example, when the vibration damper body 31 is a C-shaped ring, the natural modal frequency can be adjusted by adjusting the inner diameter, the outer diameter or the thickness of the ring, or by changing the material of the vibration damper body 31, and preferably, the material of the vibration damper body 31 is steel, cast iron, copper or aluminum. The specific adjustment method is not particularly limited as long as the natural modal frequency of the torsional vibration damper apparatus 3 is made equal to or very close to the operating frequency of the compressor.
In practical application, the operation principle of the rotary vibration damping device in the compressor is as follows:
on the one hand, when the compressor is running, the main vibration direction of the compressor is the rotation direction, and the vibration values generated in the radial direction and the axial direction are relatively small, in the embodiment, the vibration value of the compressor in the rotation direction is mainly reduced by the rotary vibration damping device 3. Because the natural mode frequency of the rotary vibration damper 3 is equal to the working frequency of the compressor, and the vibration direction of the natural mode vibration mode is also consistent with the rotation direction of the compressor, at this time, the mode of the rotary vibration damper 3 under the frequency is excited to generate resonance, so that the vibration energy generated when the compressor runs can be transferred to the rotary vibration damper 3, and the aim of reducing the vibration value of the compressor in the rotation direction is achieved.
The inventor finds that the maximum vibration value generated in the rotation direction is about 52.6 μm under the condition that the working frequency of a compressor is 48Hz and the rotary vibration damper is not additionally arranged, and the maximum vibration value generated in the rotation direction is about 36.1 μm and the reduction amplitude exceeds 30% after the rotary vibration damper is additionally arranged in the compressor, so that the vibration reduction effect of the rotary vibration damper is obvious.
On the other hand, the vibration value of the compressor is about the ratio of the moment fluctuation value to the self-rotation inertia thereof, the displacement of the compressor is not changed due to the limitation of the compressor structure, the cost and other factors, so the moment fluctuation value is basically not changed, but the whole mass of the compressor is increased after the rotary vibration damping device 3 is installed in the compressor, so the self-rotation inertia of the compressor is increased, and the vibration value of the compressor is reduced in a small range.
In addition, the invention also provides a vertical rotor type compressor which is arranged in an air conditioner and comprises an upper cylinder cover, a lower cylinder cover, a cylinder and the rotary vibration damper.
In summary, the rotary vibration damping device and the vertical rotor compressor with the same provided by the invention have the following advantages: the rotary vibration damping device is arranged in the compressor and comprises a vibration damping main body and a connecting piece, wherein the vibration damping main body is fixedly connected with the compressor through the connecting piece and is used for damping the compressor. According to the invention, the rotary vibration damper is additionally arranged in the compressor, so that the vibration energy generated when the compressor runs is transferred to the rotary vibration damper, thereby effectively reducing the vibration of the compressor, reducing the noise and increasing the adaptability of the compressor.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The rotary vibration damper is installed in a compressor and is characterized by comprising a vibration damping main body and a connecting piece, wherein the vibration damping main body is fixedly connected with the compressor through the connecting piece and is used for damping the compressor.
2. The torsional vibration damping device of claim 1, wherein a natural mode frequency of the torsional vibration damping device is equal to an operating frequency of the compressor and a vibration direction of the natural mode shape is the same as a rotation direction of the compressor.
3. A torsional vibration damping device as claimed in claim 1, characterized in that the damping body is a ring with an opening in the shape of a C, which is arranged around the periphery of the cylinder of the compressor.
4. A torsional vibration damping device as set forth in claim 3 wherein said annular ring has an inner diameter greater than an outer diameter of said cylinder.
5. A torsional vibration damping arrangement as claimed in claim 1, characterized in that a plurality of said connecting elements are provided, which are distributed over the damping body on the side intended for connection to the compressor.
6. A torsional vibration damping arrangement as claimed in claim 5, wherein there are 3 of said connecting members, 3 of said connecting members being equidistantly disposed.
7. The torsional vibration damper of claim 1, wherein the connecting member is a Z-shaped connecting member, and connecting holes are formed at both ends of the Z-shaped connecting member for fixedly connecting the vibration damper main body and the compressor, respectively.
8. A torsional vibration damper apparatus as claimed in claim 7, wherein said attachment holes are threaded holes, and said attachment member is fixedly connected to said vibration damping body and said compressor by means of bolts.
9. A torsional vibration damping device as claimed in claim 1, characterized in that the damping body is made of steel, cast iron, copper or aluminium.
10. A vertical rotor compressor installed in an air conditioner, comprising an upper cylinder cover, a lower cylinder cover, a cylinder, and a torsional vibration damper as claimed in any one of claims 1 to 8, which is disposed around the cylinder and is fixedly connected to the upper cylinder cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110379419.2A CN115199546A (en) | 2021-04-08 | 2021-04-08 | Rotary vibration damper and vertical rotor compressor with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110379419.2A CN115199546A (en) | 2021-04-08 | 2021-04-08 | Rotary vibration damper and vertical rotor compressor with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115199546A true CN115199546A (en) | 2022-10-18 |
Family
ID=83570408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110379419.2A Pending CN115199546A (en) | 2021-04-08 | 2021-04-08 | Rotary vibration damper and vertical rotor compressor with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115199546A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03271596A (en) * | 1990-03-20 | 1991-12-03 | Matsushita Refrig Co Ltd | Vibration damping device for rotary compressor |
| KR20030018455A (en) * | 2001-08-28 | 2003-03-06 | 주식회사 엘지이아이 | Apparatus for reducing vibration of compressor |
| CN1532414A (en) * | 2003-03-21 | 2004-09-29 | 乐金电子(天津)电器有限公司 | Cylinder combining structure of compressor |
| CN105201839A (en) * | 2014-06-17 | 2015-12-30 | 广东美芝制冷设备有限公司 | Rotary compressor provided with outer rotor type motor |
| CN105257509A (en) * | 2015-11-03 | 2016-01-20 | 珠海格力电器股份有限公司 | Damping device, compressor assembly and air conditioner |
| EP3163083A1 (en) * | 2015-10-28 | 2017-05-03 | Mitsubishi Heavy Industries, Ltd. | Electric compressor |
| CN206221267U (en) * | 2016-11-18 | 2017-06-06 | 广东美芝精密制造有限公司 | Compressor and the refrigeration plant with it |
-
2021
- 2021-04-08 CN CN202110379419.2A patent/CN115199546A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03271596A (en) * | 1990-03-20 | 1991-12-03 | Matsushita Refrig Co Ltd | Vibration damping device for rotary compressor |
| KR20030018455A (en) * | 2001-08-28 | 2003-03-06 | 주식회사 엘지이아이 | Apparatus for reducing vibration of compressor |
| CN1532414A (en) * | 2003-03-21 | 2004-09-29 | 乐金电子(天津)电器有限公司 | Cylinder combining structure of compressor |
| CN105201839A (en) * | 2014-06-17 | 2015-12-30 | 广东美芝制冷设备有限公司 | Rotary compressor provided with outer rotor type motor |
| EP3163083A1 (en) * | 2015-10-28 | 2017-05-03 | Mitsubishi Heavy Industries, Ltd. | Electric compressor |
| CN105257509A (en) * | 2015-11-03 | 2016-01-20 | 珠海格力电器股份有限公司 | Damping device, compressor assembly and air conditioner |
| CN206221267U (en) * | 2016-11-18 | 2017-06-06 | 广东美芝精密制造有限公司 | Compressor and the refrigeration plant with it |
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