CN112727770B - Scroll compressor, air conditioner - Google Patents
Scroll compressor, air conditioner Download PDFInfo
- Publication number
- CN112727770B CN112727770B CN202011578661.4A CN202011578661A CN112727770B CN 112727770 B CN112727770 B CN 112727770B CN 202011578661 A CN202011578661 A CN 202011578661A CN 112727770 B CN112727770 B CN 112727770B
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- China
- Prior art keywords
- crankshaft
- annular groove
- damping member
- bracket
- scroll compressor
- 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
-
- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
-
- 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
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/005—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
-
- 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
- F04C2240/60—Shafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
本发明提供一种涡旋压缩机、空调器，其中的涡旋压缩机，包括曲轴以及套装于所述曲轴上的支架，所述曲轴与所述支架之间设有轴承，所述曲轴与所述支架之间还设有阻尼件，当所述曲轴发生径向摆动时，所述阻尼件能够被挤压变形。根据本发明，在所述曲轴与所述支架之间设置所述阻尼件，当所述曲轴发生径向摆动时，所述曲轴将施力于所述阻尼件上，从而迫使所述阻尼件发生变形，变形的阻尼件将产生摩擦热量，进而将所述曲轴的摆动振动转化为所述阻尼件的热量予以抵消，能够在本质上降低压缩机轴系的振动、改善压缩机噪音水平、提高压缩机的运行可靠性。
The present invention provides a scroll compressor and an air conditioner, wherein the scroll compressor comprises a crankshaft and a bracket mounted on the crankshaft, a bearing is provided between the crankshaft and the bracket, and a damping member is also provided between the crankshaft and the bracket, and when the crankshaft undergoes radial swing, the damping member can be squeezed and deformed. According to the present invention, the damping member is provided between the crankshaft and the bracket, and when the crankshaft undergoes radial swing, the crankshaft will exert force on the damping member, thereby forcing the damping member to deform, and the deformed damping member will generate friction heat, thereby converting the swing vibration of the crankshaft into the heat of the damping member to offset it, which can essentially reduce the vibration of the compressor shaft system, improve the noise level of the compressor, and improve the operating reliability of the compressor.
Description
Technical Field
The invention belongs to the technical field of compressor manufacturing, and particularly relates to a scroll compressor and an air conditioner.
Background
For the scroll compressor, the pump body compression process is driven according to the crankshaft, and meanwhile, in order to ensure the stable operation of the shafting, two bearing structures (an upper bearing and a lower bearing) are generally arranged to restrain the shafting. However, during the running process of the shafting, due to the fluctuation of the load in the rotation period, the shafting can generate a certain degree of swinging in the radial direction, and the vibration caused by the swinging can be absorbed by the bearing. Typically, vibrations absorbed by the bearings are transmitted to the compressor housing, which then produces noise that is released into the air.
In order to reduce the noise generated by shafting swing, the noise of the compressor is usually reduced by attaching soundproof cotton outside the compressor or specially arranging structures such as an external soundproof cover, and the processing modes are that vibration reduction and damping structures are arranged outside the compressor to reduce the vibration of the compressor, so that the noise level of the compressor is reduced, the vibration level of the compressor is not reduced essentially, and the running reliability of the compressor cannot be improved.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide a scroll compressor and an air conditioner, so as to overcome the defects that vibration level of the compressor cannot be reduced and running reliability of the compressor cannot be improved by arranging vibration and noise reduction components outside the compressor in the prior art.
In order to solve the problems, the invention provides a scroll compressor, which comprises a crankshaft and a bracket sleeved on the crankshaft, wherein a bearing is arranged between the crankshaft and the bracket, a damping piece is also arranged between the crankshaft and the bracket, and the damping piece can be extruded and deformed when the crankshaft swings radially.
Preferably, the damping piece is annular, and the damping piece is sleeved on the crankshaft.
Preferably, the damping member includes a flexible layer and a rigid layer from the outside to the inside along the radial direction thereof.
Preferably, a side wall body of the rigid layer facing the crankshaft is provided with an antifriction coating.
Preferably, a first annular groove is formed in a position, corresponding to the damping piece, of the crankshaft, a second annular groove is formed in a position, corresponding to the damping piece, of the bracket, and an opening of the first annular groove is opposite to an opening of the second annular groove, so that the damping piece can be simultaneously accommodated in the first annular groove and the second annular groove.
Preferably, the axial width of the first annular groove is h1, the axial width of the second annular groove is h0, the axial width of the damping piece is h0< h < h1, and/or a first annular gap is arranged between the groove bottom of the first annular groove and the inner hole wall of the damping piece, the radial width of the first annular gap is h2, a second annular gap is arranged between the crankshaft and the bearing, and the radial width of the second annular gap is h3, and h3-h2 is more than or equal to 0.01mm and less than or equal to 0.04mm.
Preferably, two damping members are provided, and the two damping members are respectively positioned at two axial ends of the bearing.
Preferably, a third ring groove is further formed on the crankshaft, a fourth ring groove is further formed on the bracket, and an opening of the third ring groove is opposite to an opening of the fourth ring groove, so that the other of the two damping pieces can be simultaneously accommodated in the third ring groove and the fourth ring groove.
Preferably, the bracket comprises a main body, a bearing hole for installing the bearing is formed in the main body, a first installation hole and a second installation hole are respectively formed in two axial ends of the bearing hole, a first split body is detachably installed in the first installation hole, a second split body is detachably installed in the second installation hole, a second annular groove is formed in the first split body, and a fourth annular groove is formed in the second split body.
Preferably, the first split body is in interference fit connection with the first mounting hole, and/or the second split body is in interference fit connection with the second mounting hole.
Preferably, the crankshaft is provided with a convex ring extending along the radial direction of the crankshaft, the support is provided with a bearing hole for installing the bearing, an axial gap is formed between the convex ring and the orifice wall body of the bearing hole, and the damping piece is erected in the axial gap.
Preferably, the damping piece is annular, a fifth annular groove is formed in the side, facing the orifice wall body, of the convex ring, and/or a sixth annular groove is formed in the side, facing the convex ring, of the orifice wall body, and the damping piece is located in the fifth annular groove and/or the sixth annular groove.
Preferably, the damping piece is a cylinder, the damping piece is provided with a plurality of first hole grooves formed in one side of the convex ring facing the orifice wall body, and/or a plurality of second hole grooves formed in one side of the orifice wall body facing the convex ring, and the damping piece is positioned in the first hole grooves and/or the second hole grooves in a one-to-one correspondence mode.
Preferably, the axial length of the axial gap is L1, and the axial thickness of the damping piece is L2, and L1-L2 is more than or equal to 0.01mm and less than or equal to 0.03mm.
The invention also provides an air conditioner comprising the vortex compressor.
According to the scroll compressor and the air conditioner, the damping piece is arranged between the crankshaft and the support, when the crankshaft swings radially, the crankshaft applies force to the damping piece, so that the damping piece is forced to deform, friction heat is generated by the deformed damping piece, and further the swinging vibration of the crankshaft is converted into the heat of the damping piece to be counteracted, so that vibration of a compressor shafting can be reduced basically, the noise level of the compressor can be improved, and the running reliability of the compressor can be improved.
Drawings
FIG. 1 is a schematic view showing an internal structure of a scroll compressor according to an embodiment of the present invention;
FIG. 2 is a schematic view of the structure of the bracket in FIG. 1;
FIG. 3 is a schematic view of the crankshaft of FIG. 1;
FIG. 4 is a schematic view of the structure of another embodiment of the bracket of FIG. 1;
FIG. 5 is a schematic view showing a structure of a bracket in a scroll compressor according to another embodiment of the present invention;
FIG. 6 is a schematic view of a crankshaft mated to the bracket of FIG. 5;
FIG. 7 is a schematic view of another crankshaft mated to the bracket of FIG. 5;
FIG. 8 is a schematic view (top view) of a bracket in a scroll compressor according to yet another embodiment of the present invention;
fig. 9 is a schematic view of a crankshaft mated with the bracket of fig. 8.
The reference numerals are expressed as:
1. The crankshaft, 11, the first ring groove, 12, the third ring groove, 13, the convex ring, 14, the fifth ring groove, 15, the first hole groove, 2, the bracket, 21, the second ring groove, 22, the fourth ring groove, 23, the main body, 24, the bearing hole, 25, the first mounting hole, 26, the second mounting hole, 27, the first split, 28, the second split, 29, the sixth ring groove, 291, the second hole groove, 3, the bearing, 4, the damping piece, 41, the flexible layer, 42, the rigid layer, 43, the antifriction coating, 100, the shell, 101, the lower bearing support, 102, the stator assembly, 103, the rotor assembly, 104, the movable vortex disc, 105 and the fixed vortex disc.
Detailed Description
Referring to fig. 1 to 9, according to an embodiment of the present invention, a scroll compressor is provided, including a housing 100, a crankshaft 1 and a bracket 2 sleeved on the crankshaft 1 are disposed in the housing 100, the bracket 2 is located between the housing 100 and the crankshaft 1, one end of the crankshaft 1 is connected with a movable scroll 104, a crescent compression cavity is formed between the movable scroll 104 and a static scroll 105, which are matched with each other as a pump body component of the compressor, the other end of the crankshaft 1 forms a rotary support through a lower bearing support 101 and forms an axial thrust to the crankshaft 1, a rotor assembly 103 and a stator assembly 102 sleeved on a circumferential outer side of the rotor assembly 103 are further sleeved on the crankshaft 1, a bearing 3 is disposed between the crankshaft 1 and the bracket 2, a damping member 4 is further disposed between the crankshaft 1 and the bracket 2, and when the crankshaft 1 swings radially, the damping member 4 can be deformed by extrusion. In this technical scheme, set up between bent axle 1 with support 2 damping piece 4, when bent axle 1 takes place radial swing, bent axle 1 will be exerted on damping piece 4 to compel damping piece 4 takes place to warp, the damping piece 4 of warp will produce friction heat, and then will the vibration of bent axle 1 turn into damping piece 4's heat offset, can reduce the vibration of compressor shafting in essence, improve compressor noise level, improve the operational reliability of compressor.
As a specific embodiment of the damping member 4, the damping member 4 is preferably annular, and the damping member 4 is sleeved on the crankshaft 1. The damping member 4 may be implemented by a separate wear-resistant rubber ring, and preferably the damping member 4 includes a flexible layer 41 and a rigid layer 42 from the outside to the inside in the radial direction thereof. Specifically, the flexible layer 41 may be formed by using rubber, and the rigid layer 42 may be formed by using a steel sleeve, so that the damping member 4 forms a composite structure of flexible vibration reduction and rigid wear resistance, and the service life of the composite structure is prolonged, and preferably, a side wall body of the rigid layer 42 facing the crankshaft 1 is provided with a wear-reducing coating 43, so that friction loss between the composite structure and the crankshaft 1 is reduced. It will be appreciated that the rigid layer 42 is designed in such a way that the two hoops are assembled in one piece, so that the damping element 4 is conveniently fitted over the crankshaft 1.
In order to ensure the positional stability of the damper 4, it is preferable that a first ring groove 11 is formed at a position of the crankshaft 1 corresponding to the damper 4, a second ring groove 21 is formed at a position of the bracket 2 corresponding to the damper 4, and an opening of the first ring groove 11 is disposed opposite to an opening of the second ring groove 21 so that the damper 4 can be simultaneously accommodated in the first ring groove 11 and the second ring groove 21.
At this time, the axial width of the first ring groove 11 is h1, the axial width of the second ring groove 21 is h0, the axial width of the damping member 4 is h0< h < h1, that is, a tight fit (for example, interference) is formed between the end surface of the damping member 4 and the support 2, so that abrasion caused by relative movement between the flexible layer 41 of the damping member 4 and the support 2 is effectively prevented, and a gap is formed between the end surface of the damping member 4 and the groove side wall of the first ring groove 11 of the crankshaft 1, so that the movement abrasion of the damping member 4 caused by the crankshaft 1 rotating at a high speed is prevented. A first annular gap is formed between the bottom of the first annular groove 11 and the wall of the inner hole of the damping piece 4, the radial width of the first annular gap is h2, a second annular gap is formed between the crankshaft 1 and the bearing 3, and the radial width of the second annular gap is h3, and h3-h2 is more than or equal to 0.01mm and less than or equal to 0.04mm, so that the bearing 3 can be protected through the damping piece 4.
In some embodiments, two damping members 4 are provided, and the two damping members 4 are respectively located at two axial ends of the bearing 3. In this case, correspondingly, a third ring groove 12 is further formed on the crankshaft 1, and a fourth ring groove 22 is further formed on the bracket 2, wherein an opening of the third ring groove 12 is disposed opposite to an opening of the fourth ring groove 22, so that the other of the two damping members 4 can be simultaneously accommodated in the third ring groove 12 and the fourth ring groove 22. It can be understood that the clearance between the third ring groove 12 and the fourth ring groove 22 at the corresponding positions of the crankshaft 1, the damping member 4, and the bracket 2 is the same as that of the first ring groove 11 and the second ring groove 21, and the description thereof will be omitted.
In some embodiments, the bracket 2 includes a main body 23, a bearing hole 24 for installing the bearing 3 is configured on the main body 23, a first mounting hole 25 and a second mounting hole 26 are respectively provided at two axial ends of the bearing hole 24, a first split 27 is detachably installed in the first mounting hole 25, a second split 28 is detachably installed in the second mounting hole 26, the first split 27 is configured with the second ring groove 21, and the second split 28 is configured with the fourth ring groove 22. In this technical scheme, the structure of split assembly is adopted, so that the overall processing difficulty of the part can be reduced, that is, the second ring groove 21 and the fourth ring groove 22 can be processed independently, and then assembled with the main body 23 after the processing is completed. Specifically, the first split 27 is in interference fit connection with the first mounting hole 25, and/or the second split 28 is in interference fit connection with the second mounting hole 26.
In some embodiments, the crankshaft 1 has a convex ring 13 extending along the radial direction, the support 2 is provided with a bearing hole 24 for installing the bearing 3, an axial gap is formed between the convex ring and the orifice wall body of the bearing hole 24, and the damping member 4 is erected in the axial gap, that is, the technical scheme is different from the technical scheme, namely, the damping member 4 is positioned in the axial gap, so that the damping member 4 can realize vibration reduction and can objectively form thrust on the axial movement of the crankshaft 1.
At this time, as an adaptive embodiment of the damping member 4, the damping member 4 is annular, a fifth annular groove 14 is formed on a side of the convex ring 13 facing the orifice wall, and/or a sixth annular groove 29 is formed on a side of the orifice wall facing the convex ring 13, and the damping member 4 is partially located in the fifth annular groove 14 and/or the sixth annular groove 29. As another adaptive embodiment of the damping member 4, the damping member 4 is a cylinder, and the damping member 4 has a plurality of first holes 15 formed on a side of the collar 13 facing the orifice wall, and/or a plurality of second holes 291 formed on a side of the orifice wall facing the collar 13, and the plurality of damping members 4 are disposed in the plurality of first holes 15 and/or the plurality of second holes 291 in a one-to-one correspondence.
At this time, the axial length of the axial gap is L1, the axial thickness of the damping member 4 is L2, and L1-L2 is 0.01mm or less and L1-L2 is 0.03mm or less, that is, when the damping member 4 is in the axial gap, the two axial ends of the damping member 4 do not contact with the orifice wall body and the convex ring 13 at the same time, and when the crankshaft 1 axially moves or swings radially, the damping member 4 contacts with the orifice wall body and the convex ring 13 at the same time, so as to realize vibration reduction and buffering.
According to an embodiment of the present invention, there is also provided an air conditioner including the above scroll compressor.
It will be readily appreciated by those skilled in the art that the above advantageous ways can be freely combined and superimposed without conflict.
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, and alternatives falling within the spirit and principles of the invention. The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011578661.4A CN112727770B (en) | 2020-12-28 | 2020-12-28 | Scroll compressor, air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011578661.4A CN112727770B (en) | 2020-12-28 | 2020-12-28 | Scroll compressor, air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112727770A CN112727770A (en) | 2021-04-30 |
| CN112727770B true CN112727770B (en) | 2025-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011578661.4A Active CN112727770B (en) | 2020-12-28 | 2020-12-28 | Scroll compressor, air conditioner |
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| Country | Link |
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| CN (1) | CN112727770B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236565B (en) * | 2021-05-06 | 2022-11-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Shafting structure and scroll compressor |
| CN116292305B (en) * | 2023-03-03 | 2026-02-06 | 珠海格力电器股份有限公司 | Crankshaft assembly, pump body assembly and rotary compressor |
| CN118564543B (en) * | 2024-08-01 | 2024-10-29 | 珠海格力电器股份有限公司 | Bent axle structure, compressor and air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704313A (en) * | 2009-09-22 | 2010-05-12 | 中国船舶重工集团公司第七二五研究所 | Structural high-damping fiber-reinforced composite |
| CN104343688A (en) * | 2013-08-05 | 2015-02-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Welding part, compressor lower bracket and compressor |
| CN106972680A (en) * | 2017-05-11 | 2017-07-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Bearing assembly and the motor with it |
| CN214403984U (en) * | 2020-12-28 | 2021-10-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor and air conditioner |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202707485U (en) * | 2012-05-24 | 2013-01-30 | 上海三电贝洱汽车空调有限公司 | Scroll compressor with abrasion reduction mechanism |
| CN111799927B (en) * | 2020-07-17 | 2023-03-24 | 珠海格力电器股份有限公司 | Rotating shaft supporting and protecting structure, magnetic suspension bearing supporting system and motor |
-
2020
- 2020-12-28 CN CN202011578661.4A patent/CN112727770B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101704313A (en) * | 2009-09-22 | 2010-05-12 | 中国船舶重工集团公司第七二五研究所 | Structural high-damping fiber-reinforced composite |
| CN104343688A (en) * | 2013-08-05 | 2015-02-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Welding part, compressor lower bracket and compressor |
| CN106972680A (en) * | 2017-05-11 | 2017-07-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Bearing assembly and the motor with it |
| CN214403984U (en) * | 2020-12-28 | 2021-10-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor and air conditioner |
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| CN112727770A (en) | 2021-04-30 |
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