CN208651155U - A kind of multi-cylinder pump body structure and compressor - Google Patents
A kind of multi-cylinder pump body structure and compressor Download PDFInfo
- Publication number
- CN208651155U CN208651155U CN201821387072.6U CN201821387072U CN208651155U CN 208651155 U CN208651155 U CN 208651155U CN 201821387072 U CN201821387072 U CN 201821387072U CN 208651155 U CN208651155 U CN 208651155U
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- China
- Prior art keywords
- crankshaft
- working chamber
- pump body
- body structure
- cylinder pump
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- 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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- 238000000034 method Methods 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model discloses a kind of multi-cylinder pump body structure and compressors, wherein, multi-cylinder pump body structure includes: multiple working chambers and several crankshafts, and every crankshaft is equipped at least one eccentric cam, each eccentric cam configures a working chamber, and working chamber has swept volume.When crankshaft is equipped with more than an eccentric cam, the ratio of minimum swept volume and maximum functional volume is more than or equal to 0.1 in the working chamber that configures on the crankshaft.The utility model can improve compressor efficiency and operation stability.
Description
Technical field
The utility model relates to Compressor Technology field more particularly to a kind of multi-cylinder pump body structures and compressor.
Background technique
Existing multi-cylinder rotary compressor is all made of a crankshaft to connect motor section and compression cylinder mechanism, this crankshaft
Structure can have the following problems: 1, when the displacement size of multiple cylinders difference is larger, under reliability requirement, discharge capacity is big, negative
The crankshaft diameter of the big cylinder demand of lotus is thick, is limited by the diameter of axle of crankshaft, and the cylinder bore of smaller displacement can not reduce, and leads to this
Small displacement cylinder efficiency is low, and then influences the whole efficiency of compressor；2, when number of cylinders is more, the eccentric cam on crankshaft
More, the processing technology of crankshaft is more complicated, and difficulty of processing is big, scrappage is high, causes manufacturing cost to increase, and compressor
Job stability and crankshaft reliability it is poorer.
Therefore, how to design a kind of multi-cylinder pump body structure of raising compressor efficiency is that industry technology urgently to be resolved is asked
Topic.
Utility model content
In order to solve drawbacks described above existing in the prior art, the utility model proposes a kind of multi-cylinder pump body structure and compressions
Machine.
The technical solution adopted in the utility model is to design a kind of multi-cylinder pump body structure, comprising: multiple working chambers and several
A crankshaft, every crankshaft are equipped at least one eccentric cam, and each eccentric cam configures a working chamber, and working chamber has work
Make volume.When crankshaft is equipped with more than an eccentric cam, minimum swept volume and most in the working chamber that configures on the crankshaft
The ratio of big swept volume is more than or equal to 0.1.
In one embodiment, the ratio of minimum swept volume and maximum functional volume is minimum less than 0.1 in all working chamber
Working chamber where working chamber and maximum functional volume where swept volume configures on different crankshafts.
Preferably, two adjacent crankshafts are connected by connection structure and are fixed.
Preferably, connection structure includes shaft joint.
Preferably, two crankshafts of shaft joint linking are respectively the first crankshaft and the second crankshaft, and one end of shaft joint is equipped with
First receiving hole, the other end are equipped with the second receiving hole, and the end of the first crankshaft is fixed in the first receiving hole, the end of the second crankshaft
Portion is fixed in the second receiving hole.
Preferably, the outer end diameter of the first crankshaft is greater than the first receiving hole, and the outer end diameter of the second crankshaft is greater than second and holds
Receive hole, the first crankshaft and the second crankshaft are fixedly connected by shaft joint by hot cover process.
Preferably, every crankshaft is equipped at most two eccentric cams.
Preferably, when crankshaft is equipped with more than an eccentric cam, minimum in all working chamber that configures on the crankshaft
The ratio of swept volume and maximum functional volume is more than or equal to 0.5.
The utility model also proposed a kind of compressor, including above-mentioned multi-cylinder pump body structure.
Wherein, compressor further include: multiple cylinders equipped with working chamber, and one-to-one correspondence identical as working chamber quantity are set to
Roller in the working chamber, eccentric cam are located in roller, and the swept volume of working chamber is working chamber and its internal roller
Between residual volume.
In one embodiment, compressor is refrigeration compressor.
Compared with prior art, by limiting the minimum swept volume and maximum that configure on single crankshaft in the utility model
The ratio of swept volume cannot be less than 0.1, so that work efficiency is high, stable for the corresponding cylinder body of crankshaft.When in working chamber most
When the ratio of small swept volume and maximum functional volume is less than 0.1, by the working chamber and maximum functional where minimum swept volume
Working chamber where volume configures on different crankshafts, so that small volume cylinder is separated with large volume cylinder, small volume cylinder
The design of size is not limited by large volume cylinder, improves the efficiency of small volume cylinder.
Detailed description of the invention
The utility model is described in detail below with reference to embodiment and attached drawing, in which:
Fig. 1 is the connection schematic diagram of multi-cylinder pump body structure in the utility model；
Fig. 2 is the structural schematic diagram of the first crankshaft in the utility model；
Fig. 3 is the structural schematic diagram of the second crankshaft in the utility model；
Fig. 4 is the structural schematic diagram of shaft joint in the utility model.
Specific embodiment
As shown in Figure 1, the utility model proposes multi-cylinder pump body structure, comprising: multiple working chambers 1 and several crankshafts 2,
Every crankshaft 2 is equipped at least one eccentric cam 21, and each eccentric cam 21 configures a working chamber 1, eccentric cam 21 with
Working chamber 1 is one-to-one relationship.Working chamber 1 has swept volume, and swept volume herein typically refers to working chamber 1 and its
Residual volume between internal roller 5.
In the design process of multi-cylinder pump body structure, when single crankshaft 2 is equipped with more than an eccentric cam 21, the crankshaft
There is minimum swept volume Vmin and maximum functional volume Vmax in the working chamber 1 configured on 2, meet Vmin/Vmax >=
0.1, so that work efficiency is high, stable for the corresponding working chamber of crankshaft 2.For the length for reducing single crankshaft 2, every crankshaft 2
At most two eccentric cams 21 are equipped with, to improve the structural strength of crankshaft 2.Further, when crankshaft 2 is equipped with more than one
When eccentric cam 21, the ratio of minimum swept volume and maximum functional volume is greater than in all working chamber 1 that configures on the crankshaft 2
Equal to 0.5, corresponding 1 working efficiency of working chamber of crankshaft 2 is higher, operation stability is more preferable.
When in all working chamber 1 of multi-cylinder pump body structure exist minimum swept volume Vmin and maximum functional volume Vmax,
The working chamber where working chamber and maximum functional volume Vmax and when Vmin/Vmax < 0.1, where minimum swept volume Vmin
It must configure on different crankshafts 2, small volume work chamber be separated with big volume work chamber, small volume work chamber is big
Small design is not limited by big volume work chamber, improves the efficiency of small volume work chamber.It is equipped in multi-cylinder pump body structure at this time
More crankshafts 2, two adjacent crankshafts 2 are connected fixed by connection structure and form one across the whole bent of all working chamber 1
Axis.
As shown in Figures 1 to 3, the utility model provides an embodiment, is set in multi-cylinder pump body structure there are three working chamber 1 and two
A crankshaft 2, two crankshafts 2 are respectively to be set on the first crankshaft 2a and the second crankshaft 2b, the first crankshaft 2a there are two eccentric cam
21, two working chambers 1 of corresponding configuration, Vmin/Vmax >=0.1 of two working chambers 1.Second crankshaft 2a is equipped with a bias
The maximum configured on cam 21, the corresponding remaining working chamber 1 of configuration, the swept volume of the working chamber 1 and the first crankshaft 2a
The ratio of swept volume Vmax is less than 0.1.As shown in Figures 2 to 4, in the present embodiment, connection structure includes shaft joint 3, is passed through
Shaft joint 3 is connected the first crankshaft 2a and the second crankshaft 2b, and one end of shaft joint 3 is equipped with the first receiving hole 31, shaft joint 3 it is another
End is equipped with the second receiving hole 32, and the outer end diameter of the first crankshaft 2a is greater than the first receiving hole 31, the outer end diameter of the second crankshaft 2b
Greater than the second receiving hole 32, the end of the first crankshaft 2a is fixed in the first receiving hole 31 by hot cover process, is incited somebody to action by shaft joint 3
The end of second crankshaft 2b is fixed in the second receiving hole 32.
As shown in Figure 1, the utility model also proposed a kind of compressor, comprising: at least two are equipped with the cylinder of working chamber 1
4, identical as 1 quantity of working chamber and correspond be set to the working chamber 1 in roller 5, above-mentioned multi-cylinder pump body structure and
Slide plate in cylinder 4, eccentric cam 21 are located in roller 5.In a preferred embodiment, compressor is refrigeration compressor.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (12)
1. a kind of multi-cylinder pump body structure, comprising: multiple working chambers (1) and several crankshafts (2), which is characterized in that every crankshaft
(2) it is equipped at least one eccentric cam (21), each eccentric cam (21) configures a working chamber (1), the work
Chamber (1) has swept volume；When crankshaft (2) are equipped with more than one eccentric cam (21), the work that configures on the crankshaft (2)
The ratio of minimum swept volume and maximum functional volume is more than or equal to 0.1 in chamber (1).
2. multi-cylinder pump body structure as described in claim 1, which is characterized in that in all working chamber (1) minimum swept volume and
Working chamber working chamber and maximum functional volume where of the ratio of maximum functional volume less than 0.1, where minimum swept volume
Configuration is on different crankshafts (2).
3. multi-cylinder pump body structure as claimed in claim 2, which is characterized in that two adjacent crankshafts (2) pass through connection structure
Linking is fixed.
4. multi-cylinder pump body structure as claimed in claim 3, which is characterized in that the connection structure includes shaft joint (3).
5. multi-cylinder pump body structure as claimed in claim 4, which is characterized in that two crankshafts point of shaft joint (3) linking
Not Wei the first crankshaft (2a) and the second crankshaft (2b), one end of the shaft joint (3) is equipped with the first receiving hole (31), the other end is set
Have the second receiving hole (32), the end of first crankshaft (2a) is fixed in first receiving hole (31), and described second is bent
The end of axis (2b) is fixed in the second receiving hole (32).
6. multi-cylinder pump body structure as claimed in claim 5, which is characterized in that the outer end diameter of first crankshaft (2a) is greater than
The outer end diameter of first receiving hole (31), second crankshaft (2b) is greater than second receiving hole (32), the connecting shaft
First crankshaft (2a) is fixedly connected by device (3) by hot cover process with the second crankshaft (2b).
7. such as multi-cylinder pump body structure as claimed in any one of claims 1 to 6, which is characterized in that every crankshaft (2) is equipped at most
Two eccentric cams (21).
8. such as multi-cylinder pump body structure as claimed in any one of claims 1 to 6, which is characterized in that when crankshaft (2) are equipped with more than one
When a eccentric cam (21), minimum swept volume and maximum functional volume in all working chamber (1) that is configured on the crankshaft (2)
Ratio is more than or equal to 0.5.
9. a kind of compressor characterized by comprising multi-cylinder pump body structure as claimed in any one of claims 1 to 8.
10. compressor as claimed in claim 9, which is characterized in that further include: multiple cylinders equipped with the working chamber (1)
(4), identical as the working chamber (1) quantity and one-to-one correspondence is set to the roller (5) in the working chamber (1), and the bias is convex
Wheel (21) is located in roller (5).
11. compressor as claimed in claim 10, which is characterized in that the swept volume is working chamber (1) and it is internal
Residual volume between roller (5).
12. compressor as claimed in claim 9, which is characterized in that the compressor is refrigeration compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821387072.6U CN208651155U (en) | 2018-08-27 | 2018-08-27 | A kind of multi-cylinder pump body structure and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821387072.6U CN208651155U (en) | 2018-08-27 | 2018-08-27 | A kind of multi-cylinder pump body structure and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208651155U true CN208651155U (en) | 2019-03-26 |
Family
ID=65791690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821387072.6U Withdrawn - After Issue CN208651155U (en) | 2018-08-27 | 2018-08-27 | A kind of multi-cylinder pump body structure and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208651155U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026692A (en) * | 2018-08-27 | 2018-12-18 | 珠海凌达压缩机有限公司 | A kind of multi-cylinder pump body structure and compressor |
| CN109026692B (en) * | 2018-08-27 | 2024-05-14 | 珠海凌达压缩机有限公司 | Multi-cylinder pump body structure and compressor |
-
2018
- 2018-08-27 CN CN201821387072.6U patent/CN208651155U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026692A (en) * | 2018-08-27 | 2018-12-18 | 珠海凌达压缩机有限公司 | A kind of multi-cylinder pump body structure and compressor |
| CN109026692B (en) * | 2018-08-27 | 2024-05-14 | 珠海凌达压缩机有限公司 | Multi-cylinder pump body structure and compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190326 Effective date of abandoning: 20240514 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190326 Effective date of abandoning: 20240514 |