CN113864156B - Reciprocating compressor - Google Patents
Reciprocating compressor Download PDFInfo
- Publication number
- CN113864156B CN113864156B CN202111266423.4A CN202111266423A CN113864156B CN 113864156 B CN113864156 B CN 113864156B CN 202111266423 A CN202111266423 A CN 202111266423A CN 113864156 B CN113864156 B CN 113864156B
- Authority
- CN
- China
- Prior art keywords
- crankshaft
- oil
- shaft
- hole
- matching
- 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.)
- Active
Links
- 230000013011 mating Effects 0.000 claims description 14
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000005461 lubrication Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 83
- 238000002347 injection Methods 0.000 description 14
- 239000007924 injection Substances 0.000 description 14
- 239000010687 lubricating oil Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000000243 solution Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0094—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 crankshaft
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/14—Provisions for readily assembling or disassembling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The utility model provides a reciprocating compressor, relates to compressor technical field to solve two motion pairs that present reciprocating compressor bent axle and cylinder block's bent axle hole cooperation formed, the less increase shaft pressure of interval of two motion pairs and then the problem that increases the energy consumption of compressor. A reciprocating compressor of the present invention comprises: the cylinder seat is provided with a crankshaft matching hole; the bottom plate is provided with a centering device, the centering device is provided with a mounting hole, and the bottom plate is fixedly connected with the cylinder seat and is positioned below the cylinder seat; the crankshaft is provided with a first matching shaft section on one side of a long shaft close to the short shaft of the crankshaft, a second matching shaft section on one side of the long shaft far away from the short shaft of the crankshaft, and the long shaft sequentially penetrates through the crankshaft matching hole and the mounting hole. The invention solves the problem of larger shaft pressure of the crankshaft mounting hole of the reciprocating compressor by increasing the distance of the matching sections of the crankshaft, and is beneficial to improving the efficiency of the compressor.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a reciprocating compressor.
Background
Along with economic development, the living standard of people is increasingly improved, and the user experience and quality pursuit of the refrigerator by the market are also gradually improved. In recent years, large-volume refrigerators develop rapidly, but energy conservation and environmental protection are always the targets pursued by the household appliance industry, and common variable frequency compressors cannot meet the matching requirements of the high-end refrigerator market.
The existing reciprocating compressor structure has certain limitation in the aspect of improving energy efficiency, particularly the design of a crankshaft of a core part of the compressor, two matching shaft sections of the crankshaft are respectively assembled with a crankshaft hole of a cylinder seat to form a kinematic pair, and in order to realize miniaturization, the height of a compressor shell is limited, so that the crankshaft generates larger bending moment due to smaller distance between the two kinematic pairs in the motion process, and the energy consumption is larger when the crankshaft rotates due to larger shaft pressure.
Disclosure of Invention
In view of this, the invention discloses a reciprocating compressor, which is used for solving the problem that the distance between two kinematic pairs formed by matching a crankshaft of the existing reciprocating compressor and a crankshaft hole of a cylinder seat is smaller, so that the axial pressure is increased, and the energy consumption of the compressor is further increased.
In order to achieve the above object, the invention adopts the following technical scheme:
a first aspect of the present invention discloses a reciprocating compressor comprising: the cylinder seat is provided with a crankshaft matching hole; the bottom plate is provided with a centering device, the centering device is provided with a mounting hole, and the bottom plate is fixedly connected with the cylinder seat and is positioned below the cylinder seat; the crankshaft comprises a crankshaft, wherein a first matching shaft section is arranged on one side, close to a short shaft of the crankshaft, of a long shaft of the crankshaft, a second matching shaft section is arranged on one side, far away from the short shaft of the crankshaft, of the long shaft of the crankshaft, the long shaft sequentially penetrates through a crankshaft matching hole and a mounting hole, the first matching shaft section is in clearance fit with the crankshaft matching hole, the mounting hole is matched with the second matching shaft section, the crankshaft can rotate relative to the bottom plate and the cylinder seat, and the aligning device is used for supporting the crankshaft.
Further optionally, the centering device includes: the outer sleeve is fixedly arranged on the bottom plate, the outer surface of the outer sleeve is provided with a first outer spherical surface, and the inner surface of the outer sleeve is provided with an inner spherical surface concentric with the first outer spherical surface; the outer surface of the inner sleeve is provided with a second outer spherical surface, the inner surface of the inner sleeve is provided with the mounting hole, the center of the second outer spherical surface is positioned on the axis of the mounting hole, and the second outer spherical surface is in running fit with the inner spherical surface.
Further optionally, a first annular oil groove is formed in the surface, on one side of the cylinder block, of the bottom plate, a second annular oil groove is formed in the surface of the first outer spherical surface along the circumferential direction of the first outer spherical surface, a first through hole penetrating through the first outer spherical surface and the inner spherical surface is formed in the bottom of the second annular oil groove, a second through hole penetrating through the second annular oil groove is formed in the bottom of the first annular oil groove, and the first annular oil groove, the first through hole, the second annular oil groove and the second through hole form a lubricating oil path.
Further optionally, the compressor further comprises a shell, the cylinder block, the bottom plate and the crankshaft are all arranged in the shell, an oil pool is arranged at the bottom of the shell, and an oil leakage hole is formed in the bottom plate.
Further optionally, an oil path is arranged inside the long shaft, the oil path extends to the end face of the long shaft along the axial direction of the long shaft, an oil pump is fixedly arranged at the bottom of an oil pool of the casing, the oil pump extends into the oil path, the oil path is provided with an oil injection port, and the oil injection port is configured to inject oil sprayed by the oil injection port into the first annular oil groove.
Further optionally, the centering device is a centering roller bearing.
Further optionally, an oil path is arranged inside the long shaft, the oil path extends to the end face of the long shaft along the axial direction of the long shaft, an oil pump is fixedly arranged at the bottom of an oil pool of the shell, the oil pump extends into the oil path, the oil path is provided with an oil injection port, and the oil injection port is structured to be injected between the inner ring and the outer ring of the aligning roller bearing by oil sprayed by the oil injection port.
Further optionally, the oil path communicates with a fitting clearance between the first fitting shaft section and the crankshaft fitting hole.
Further optionally, a distance from a midpoint in the short axis length direction to a midpoint in the first mating axis segment length direction is L1, and a distance from a midpoint in the first mating axis segment length direction to a midpoint in the second mating axis segment length direction is L2, where L1/L2 satisfies: 0.3 are woven into L1/L2<0.5.
Further optionally, the distance in the length direction of the first mating shaft section is B1, and the distance in the length direction of the second mating shaft section is B2, wherein 0.8-woven fabric (B1/B2) is less than 1.2.
Has the beneficial effects that: the long shaft of the crankshaft sequentially penetrates through the crankshaft matching hole and the mounting hole, and the aligning device not only plays a role in supporting the crankshaft, increases the supporting distance of the crankshaft, solves the problem that the energy consumption of a compressor is increased due to large axial pressure caused by small distance between supporting points of the crankshaft, but also solves the problem of deviation caused by the fact that the mounting hole and the crankshaft matching hole are not coaxial in the mounting process, and has the function of automatic aligning.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely exemplary embodiments of the present disclosure, and other drawings may be derived by those skilled in the art without inventive effort.
FIG. 1 shows a schematic diagram of a prior art compressor;
FIG. 2 shows a schematic view of a compressor in an embodiment of the present invention;
FIG. 3 shows an enlarged view of a portion of FIG. 2 at I;
FIG. 4 illustrates a schematic view of the crankshaft, bedplate, and cylinder block connections in an embodiment of the present invention;
FIG. 5 shows a schematic view of a compressor in a further embodiment of the invention;
FIG. 6 shows an enlarged view of a portion of FIG. 5 at II;
FIG. 7 shows a schematic view of a base plate;
fig. 8 shows a schematic representation of a crankshaft.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrases "comprising one of \8230;" does not exclude the presence of additional like elements in an article or system comprising the element.
Two matching shaft sections of the crankshaft are respectively assembled with a crankshaft hole of the cylinder block to form a kinematic pair, and in order to realize miniaturization, the height of a shell of the compressor is limited, so that the crankshaft generates larger bending moment due to smaller distance between the two kinematic pairs in the motion process, and the larger shaft pressure causes larger energy consumption during rotation. According to the invention, the bottom plate is additionally arranged below the cylinder seat, and the crankshaft is supported on the bottom plate through the aligning device, so that the distance between the crankshaft supporting positions is increased, the axial pressure of the crankshaft on the supporting positions is further reduced, and the efficiency of the compressor is improved. In order to further improve the efficiency of the compressor, the oil way of the crankshaft is provided with an oil injection port, lubricating oil sprayed by the oil injection port enters the aligning device to lubricate the aligning device, and excessive lubricating oil flows back to an oil pool to avoid the problem of untimely oil return caused by large oil quantity of a high-frequency operation pump of the compressor.
To further illustrate the technical solution of the present invention, the following specific examples are provided with reference to fig. 1 to 8.
Example 1
In the present embodiment, there is provided a reciprocating compressor, as shown in fig. 2 to 6, comprising: a cylinder block 10 provided with a crankshaft fitting hole; the bottom plate 20 is provided with a centering device 30, the centering device 30 is provided with a mounting hole, and the bottom plate 20 is fixedly connected with the cylinder block 10 and is positioned below the cylinder block 10; the crankshaft 40 is provided with a first matching shaft section on one side of a long shaft 41 of the crankshaft close to a short shaft 42 of the crankshaft, a second matching shaft section on one side of the long shaft 41 of the crankshaft far away from the short shaft 42 of the crankshaft, the long shaft 41 sequentially penetrates through the crankshaft matching hole and the mounting hole, the first matching shaft section is in clearance fit with the crankshaft matching hole, the mounting hole is matched with the second matching shaft section, the crankshaft can rotate relative to the bottom plate 20 and the cylinder block 10, and the aligning device 30 is used for supporting the crankshaft.
As shown in fig. 1, in the prior art, two mating shaft sections of the crankshaft 40 are both in the crankshaft mating hole to form kinematic pairs a1 and a2, and the two kinematic pairs a1 and a2 are arranged close to each other, so that the shaft pressure of the crankshaft 40 to the local part of the crankshaft mounting hole is large in the movement process of the crankshaft 40, the energy consumption effect of the compressor is enabled, and the efficiency of the compressor is affected. In this embodiment, the kinematic pair a2 is equivalently arranged on the aligning device 30 of the bottom plate 20, and the aligning device 30 has an aligning function, so that the assembling stress caused by the processing difficulty and the assembling error is reduced, and the efficiency of the compressor is further improved.
In one embodiment of the present embodiment, as shown in fig. 2, 3, and 7, the center adjusting device 30 includes: an outer sleeve 31 fixedly arranged on the bottom plate 20, wherein the outer surface of the outer sleeve 31 is provided with a first outer spherical surface, and the inner surface of the outer sleeve 31 is provided with an inner spherical surface concentric with the first outer spherical surface; the outer surface of the inner sleeve 32 is provided with a second outer spherical surface, the inner surface of the inner sleeve 32 forms the mounting hole, the center of the second outer spherical surface is positioned on the axis of the mounting hole, and the second outer spherical surface is in running fit with the inner spherical surface. In order to further reduce the resistance of the outer sleeve 31 and the inner sleeve 32 in the rotational fit, a first annular oil groove b is formed in one side surface of the bottom plate 20, which is located on the cylinder block 10, a second annular oil groove d is formed in the surface of the first outer spherical surface along the circumferential direction of the first outer spherical surface, a first through hole c penetrating through the first outer spherical surface and the inner spherical surface is formed in the bottom of the second annular oil groove d, a second through hole e penetrating through the second annular oil groove d is formed in the bottom of the first annular oil groove b, and the first annular oil groove b, the first through hole c, the second annular oil groove d and the second through hole e form a lubricating oil path. In the process of high-frequency operation of the compressor, in order to avoid insufficient lubrication caused by rotation of the inner sleeve 32 in the outer sleeve 31, a lubricating oil path is arranged, and partial lubricating oil flowing back to the bottom plate 20 of the compressor is recycled into the first annular oil groove b to lubricate the adjusting device 30. In order to further ensure that the oil return of the compressor is timely, the compressor further comprises a shell 50, the cylinder block 10, the bottom plate 20 and the crankshaft are all arranged in the shell 50, an oil pool is arranged at the bottom of the shell 50, and the bottom plate 20 is provided with an oil leakage hole 21. By providing the oil leak hole 21, a part of the lubricating oil returned to the base plate 20 flows from the oil leak hole 21 into the oil pool. In order to further ensure high-frequency oil return of the compressor and make the aligning device 30 lubricated and reliable at the same time, an oil path 411 is arranged inside the long shaft 41, the oil path 411 extends to the end face of the long shaft 41 along the axial direction of the long shaft, an oil pump 60 is fixedly arranged at the bottom of an oil pool of the shell 50, the oil pump 60 extends into the oil path 411 and is used for supplying oil from the oil pool to the oil path 411, the oil path 411 is provided with an oil injection port 412, and the oil injection port 412 is configured to inject oil sprayed by the oil injection port 412 into the first annular oil groove b. The number of the oil jet 412 may be plural, and is uniformly arranged around the circumference of the long shaft 41.
In yet another embodiment of the present embodiment, as shown in fig. 5 and 6, the aligning device 30 is an aligning roller bearing. In order to further ensure that the high-frequency oil return of the compressor is timely and the aligning device 30 is reliable in lubrication, an oil path 411 is arranged inside the long shaft 41, the oil path 411 extends to the end face of the long shaft 41 along the axial direction of the long shaft 41, an oil pump 60 is fixedly arranged at the bottom of an oil pool of the shell 50, the oil pump 60 extends into the oil path, the oil path is provided with an oil injection port 412, and the oil injection port 412 is structured that oil sprayed out of the oil injection port 412 is sprayed between an inner ring and an outer ring of the aligning roller bearing.
Further, the oil path 411 is communicated with a fit clearance between the first fit shaft section and the crankshaft fit hole, so that lubricating oil can be supplied to a kinematic pair formed by the first fit shaft section and the crankshaft fit hole, and the running resistance is reduced.
Further optionally, as shown in fig. 4 and 8, a distance from a middle point of the short axis 42 in the length direction to a middle point of the first matching shaft segment in the length direction is L1, and a distance from the middle point of the first matching shaft segment in the length direction to a middle point of the second matching shaft segment in the length direction is L2, where L1/L2 satisfies: 0.3 are woven into L1/L2<0.5. If the value of L1/L2 is not in this range, the shaft pressure of the centering device 30 or the crankshaft fitting hole is too large, and the rotational resistance of the crankshaft is increased, resulting in an increase in the power consumption of the compressor. Further, the distance in the length direction of the first mating shaft section is B1, and the distance in the length direction of the second mating shaft section is B2, wherein 0.8-woven fabric (B1/B2) is less than 1.2. If B1/B2 is not within the above range, the axial pressure of the center adjusting device 30 or the crankshaft fitting hole is too high, and the rotational resistance of the crankshaft is increased, which increases the power consumption of the compressor.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the disclosure is not limited to the precise construction, arrangements, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (9)
1. A reciprocating compressor, comprising:
the cylinder seat is provided with a crankshaft matching hole;
the bottom plate is provided with a centering device, the centering device is provided with a mounting hole, and the bottom plate is fixedly connected with the cylinder seat and is positioned below the cylinder seat;
the crankshaft is provided with a first matching shaft section on one side, close to the short shaft of the crankshaft, of the long shaft, and a second matching shaft section on one side, far away from the short shaft of the crankshaft, of the long shaft, the long shaft sequentially penetrates through the crankshaft matching hole and the mounting hole, the first matching shaft section is in clearance fit with the crankshaft matching hole, the mounting hole is matched with the second matching shaft section, the crankshaft can rotate relative to the bottom plate and the cylinder seat, and the centering device is used for supporting the crankshaft;
wherein a distance from a midpoint of the short axis in the length direction to a midpoint of the first mating shaft segment in the length direction is L1, and a distance from a midpoint of the first mating shaft segment in the length direction to a midpoint of the second mating shaft segment in the length direction is L2, wherein L1/L2 satisfies: 0.3 are woven into L1/L2<0.5.
2. The reciprocating compressor of claim 1, wherein the center adjusting means comprises:
the outer sleeve is fixedly arranged on the bottom plate, the outer surface of the outer sleeve is provided with a first outer spherical surface, and the inner surface of the outer sleeve is provided with an inner spherical surface concentric with the first outer spherical surface;
the outer surface of the inner sleeve is provided with a second outer spherical surface, the inner surface of the inner sleeve is provided with the mounting hole, the center of the second outer spherical surface is positioned on the axis of the mounting hole, and the second outer spherical surface is in running fit with the inner spherical surface.
3. The reciprocating compressor of claim 2, wherein a side surface of the bottom plate located at the cylinder block is provided with a first annular oil groove, the first outer spherical surface is provided with a second annular oil groove along a circumferential direction thereof, a bottom of the second annular oil groove is provided with a first through hole penetrating the first outer spherical surface and the inner spherical surface, a bottom of the first annular oil groove is provided with a second through hole penetrating the second annular oil groove, and the first annular oil groove, the first through hole, the second annular oil groove and the second through hole form a lubrication oil path.
4. The reciprocating compressor according to claim 3, further comprising a housing, wherein the cylinder block, the bottom plate and the crankshaft are disposed in the housing, an oil sump is disposed at a bottom of the housing, and an oil leakage hole is disposed on the bottom plate.
5. The reciprocating compressor of claim 4, wherein an oil passage is provided inside the long shaft, the oil passage extending to an end surface of the long shaft in an axial direction of the long shaft, an oil pump is fixedly provided at a bottom of the oil sump of the casing, the oil pump extends into the oil passage, and the oil passage is provided with an oil jet port configured to jet oil ejected therefrom into the first annular oil groove.
6. The reciprocating compressor of claim 4, wherein the aligning means is an aligning roller bearing.
7. The reciprocating compressor according to claim 6, wherein an oil passage is provided inside the long shaft, the oil passage extending to an end surface of the long shaft in an axial direction of the long shaft, an oil pump is fixedly provided at a bottom of the oil pool of the casing, the oil pump extends into the oil passage, and the oil passage is provided with an oil jet port configured to jet oil jetted from the oil jet port toward between the inner ring and the outer ring of the self-aligning roller bearing.
8. The reciprocating compressor of claim 5 or 7, wherein the oil passage communicates with a fitting clearance between the first fitting shaft section and the crank shaft fitting hole.
9. A reciprocating compressor according to claim 1, wherein a distance in a length direction of the first mating shaft section is B1, and a distance in a length direction of said second mating shaft section is B2, wherein 0.8< -B1/B2 <1.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111266423.4A CN113864156B (en) | 2021-10-28 | 2021-10-28 | Reciprocating compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111266423.4A CN113864156B (en) | 2021-10-28 | 2021-10-28 | Reciprocating compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113864156A CN113864156A (en) | 2021-12-31 |
| CN113864156B true CN113864156B (en) | 2023-01-17 |
Family
ID=78985820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111266423.4A Active CN113864156B (en) | 2021-10-28 | 2021-10-28 | Reciprocating compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113864156B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4718830A (en) * | 1982-09-30 | 1988-01-12 | White Consolidated Industries, Inc. | Bearing construction for refrigeration compresssor |
| US5205723A (en) * | 1991-01-22 | 1993-04-27 | Matsushita Refrigeration Company | Hermetically sealed compressor |
| CN202634150U (en) * | 2012-06-08 | 2012-12-26 | 湖南凌华印务有限责任公司 | Printing machine motor output shaft bearing seat |
| CN103541902A (en) * | 2012-07-10 | 2014-01-29 | 广东美芝制冷设备有限公司 | Rotary type compressor with low-back-pressure shell |
| CN108194493A (en) * | 2017-11-21 | 2018-06-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Link mechanism, compressor and refrigerator |
| CN108591015A (en) * | 2017-12-25 | 2018-09-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly, piston compressor and heat-exchange system for piston compressor |
| CN110878795A (en) * | 2019-11-28 | 2020-03-13 | 中国航空工业集团公司沈阳飞机设计研究所 | Bearing mounting structure |
| CN111287944A (en) * | 2018-12-07 | 2020-06-16 | 安徽美芝制冷设备有限公司 | Reciprocating compressor |
| CN112483363A (en) * | 2020-11-26 | 2021-03-12 | 长虹华意压缩机股份有限公司 | Pump body structure of refrigerator compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT10065U1 (en) * | 2007-08-28 | 2008-08-15 | Acc Austria Gmbh | REFRIGERANT COMPRESSOR |
| CN104011385A (en) * | 2011-12-26 | 2014-08-27 | 松下电器产业株式会社 | Hermetic compressor and refrigerator with same |
-
2021
- 2021-10-28 CN CN202111266423.4A patent/CN113864156B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4718830A (en) * | 1982-09-30 | 1988-01-12 | White Consolidated Industries, Inc. | Bearing construction for refrigeration compresssor |
| US5205723A (en) * | 1991-01-22 | 1993-04-27 | Matsushita Refrigeration Company | Hermetically sealed compressor |
| CN202634150U (en) * | 2012-06-08 | 2012-12-26 | 湖南凌华印务有限责任公司 | Printing machine motor output shaft bearing seat |
| CN103541902A (en) * | 2012-07-10 | 2014-01-29 | 广东美芝制冷设备有限公司 | Rotary type compressor with low-back-pressure shell |
| CN108194493A (en) * | 2017-11-21 | 2018-06-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Link mechanism, compressor and refrigerator |
| CN108591015A (en) * | 2017-12-25 | 2018-09-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly, piston compressor and heat-exchange system for piston compressor |
| CN111287944A (en) * | 2018-12-07 | 2020-06-16 | 安徽美芝制冷设备有限公司 | Reciprocating compressor |
| CN110878795A (en) * | 2019-11-28 | 2020-03-13 | 中国航空工业集团公司沈阳飞机设计研究所 | Bearing mounting structure |
| CN112483363A (en) * | 2020-11-26 | 2021-03-12 | 长虹华意压缩机股份有限公司 | Pump body structure of refrigerator compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113864156A (en) | 2021-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101592140A (en) | Coolant compressor | |
| CN113864156B (en) | Reciprocating compressor | |
| CN105927547A (en) | Oil/water return structure of exhaust end sliding bearing of high-pressure helical-lobe compressor | |
| CN211820050U (en) | Engine and balance shaft | |
| CN202851308U (en) | Cylinder block with oil storage tank and reciprocating compressor using same | |
| CN110905771A (en) | Oil pumping system for crankshaft, compressor with oil pumping system and air conditioner | |
| CN110645129A (en) | Marine low-speed machine electric control single high-pressure oil pump | |
| CN214464777U (en) | Crankcase lubricating device | |
| JP3487892B2 (en) | Hermetic compressor | |
| CN205503466U (en) | Pump body subassembly and have its compressor | |
| CN208040660U (en) | Excentric sleeve, crankshaft group and compressor for compressor crank shaft | |
| CN107747588A (en) | A kind of connecting rod lubrication structure of engine | |
| CN204877842U (en) | Be equipped with compressor of novel bent axle | |
| CN210919305U (en) | Marine low-speed machine electric control single high-pressure oil pump | |
| CN209458121U (en) | Turn the pump body structure of the cylinder piston compressor and turns the cylinder piston compressor | |
| CN113153752A (en) | Compressor and air conditioner with same | |
| CN210317515U (en) | Diesel engine frame and diesel engine | |
| CN105041618A (en) | Novel crankshaft of refrigeration compressor | |
| CN208734742U (en) | A kind of electric steering engine output shaft supporting structure | |
| CN206206116U (en) | Compressor bent axle and the compressor with it | |
| CN201218203Y (en) | Oil pump with pressure limiting valve | |
| CN221096930U (en) | Bearing box structure for submerged pump | |
| CN110761977A (en) | Oil suspension type cylinder seat bearing structure | |
| JP2581289Y2 (en) | Connecting rod connection structure and eccentric circular cam | |
| CN103557162B (en) | Rotary compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |