CN219139371U - Compressor pump body exhaust seal structure and compressor - Google Patents
Compressor pump body exhaust seal structure and compressor Download PDFInfo
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- CN219139371U CN219139371U CN202222910173.XU CN202222910173U CN219139371U CN 219139371 U CN219139371 U CN 219139371U CN 202222910173 U CN202222910173 U CN 202222910173U CN 219139371 U CN219139371 U CN 219139371U
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- 238000007789 sealing Methods 0.000 claims abstract description 83
- 238000000034 method Methods 0.000 claims description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
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- 230000014509 gene expression Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The application relates to a compressor pump body exhaust sealing structure and a compressor, wherein the structure comprises a cylinder, rollers, a crankshaft and a flange, wherein two ends of the cylinder are sealed through the flange, the flange and an inner cavity of the cylinder enclose a sealed cavity, the crankshaft penetrates through the flange, an eccentric block is arranged on the crankshaft, the rollers are sleeved outside the eccentric block, and the eccentric block and the rollers are both positioned in the cavity; the sealing block is arranged between the roller and the eccentric block; at least one flange is provided with an exhaust port, the inner end of the exhaust port is positioned between the inner circle of the roller and the inner side surface of the sealing block, and the outer end of the exhaust port is positioned at the outer side of the inner wall of the cylinder; the end face of the sealing block and the end face of the roller are in sealing fit with the exhaust port. By additionally arranging the sealing block, the exhaust port is not limited by the size of the inner circle, and the sealing requirement can still be met by crossing the inner circle of the roller; the structure can reduce the correlation between the exhaust port and the cylinder wall, thereby reducing the clearance and improving the exhaust smoothness.
Description
Technical Field
The utility model relates to the technical field of compressors, in particular to a compressor pump body exhaust sealing structure and a compressor.
Background
The rotor compressor is widely used in home refrigerator and air conditioner, and its working cycle can be divided into three processes of suction, compression and exhaust. The rotor type compressor is generally provided with an exhaust port on a flange, and the exhaust port has more constraint conditions in design: the exhaust port is positioned at the outer side of the inner circle of the roller, and the most distance between the exhaust port and the inner circle of the roller is required to be larger than the sealing distance; the exhaust port needs to cover the flat angle positions of the sliding vane and the inner circle of the cylinder as much as possible, so that excessive compression is avoided; the exhaust port needs to reduce the intersection position with the cylinder wall and the sliding vane as much as possible, and reduce the clearance; the size of the exhaust port needs to be kept from being too large or too small.
The exhaust port is difficult to meet the conditions, and only partial compromise treatment is realized, so that the sealing distance between the exhaust port and the inner circle of the roller of the existing rotor compressor is insufficient, and the utilization rate of the exhaust port is low.
Disclosure of Invention
The utility model aims at overcoming the defects, and provides a compressor pump body exhaust sealing structure and a compressor, which solve the problem of insufficient sealing distance between an exhaust port and the inner circle of a roller and improve the utilization rate of the exhaust port.
The first technical scheme adopted by the utility model for solving the technical problems is that the exhaust sealing structure of the pump body of the compressor comprises a cylinder, rollers, a crankshaft and a flange, wherein both ends of the cylinder are sealed by the flange, the flange and an inner cavity of the cylinder enclose a sealed cavity, the crankshaft penetrates through the flange, an eccentric block is arranged on the crankshaft, the rollers are sleeved outside the eccentric block, and the eccentric block and the rollers are both positioned in the cavity;
the sealing block is arranged between the roller and the eccentric block;
at least one flange is provided with an exhaust port, the inner end of the exhaust port is positioned between the inner circle of the roller and the inner side surface of the sealing block, and the outer end of the exhaust port is positioned at the outer side of the inner wall of the cylinder;
the end face of the sealing block and the end face of the roller are in sealing fit with the exhaust port.
Further, the sealing block is inlaid between the roller and the eccentric block.
Further, the outer circumferential side surface of the sealing block is an arc surface matched with the inner circle of the roller, and the inner side surface of the sealing block is connected with the eccentric block.
Further, the cambered surface radius of the sealing block is not smaller than the radius of the eccentric block.
Further, the radius of the sealing block is the same as that of the eccentric block, and the sealing block and the eccentric block are combined to form a cylinder.
Further, the sealing block is integrally formed with the inner circle of the roller.
Further, the sealing block and the eccentric block are integrally manufactured.
Further, the sealing distance between the end surface of the roller matched with the exhaust port and the exhaust port is 0.5-5.0mm, and the sealing distance between the end surface of the sealing block matched with the exhaust port and the exhaust port is 0.5-5.0mm.
Further, the gap between the end face of the roller and the flange is 0.01-0.05mm, and the gap between the end face of the eccentric block and the upper flange is more than 0.05mm.
The second technical scheme adopted for solving the technical problem is that the utility model provides a compressor, which comprises the compressor pump body exhaust sealing structure.
Compared with the prior art, the utility model has the following beneficial effects: the structure is simple, the design is reasonable, the exhaust port can not be limited by the size of the inner circle by additionally arranging the sealing block, and the sealing requirement can be still met by crossing the inner circle of the roller; the structure can reduce the correlation between the exhaust port and the cylinder wall, thereby reducing the clearance and improving the exhaust smoothness.
Drawings
The patent of the utility model is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic view of a conventional discharge structure of a rotor compressor.
Fig. 2 is a schematic structural diagram of embodiment 1.
Fig. 3 is a schematic view of the internal structure of the cavity of embodiment 1.
Fig. 4 is a schematic structural diagram of embodiment 2.
Fig. 5 is a schematic view of the internal structure of the cavity of embodiment 2.
Fig. 6 is a schematic structural diagram of embodiment 3.
Fig. 7 is a schematic view of the internal structure of the chamber of embodiment 3.
In the figure:
1-a cylinder; 2-flanges; 3-a roller; 4-a crankshaft; 5-eccentric blocks; 6-exhaust port; 7-a sealing block; 8-a cavity; l-sealing distance.
Detailed Description
The preferred embodiments of the present utility model will be described in more detail below, however, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The rotor type compressor is generally provided with an exhaust port on a flange, and the exhaust port has more constraint conditions in design: the distance between the exhaust port and the inner circle of the roller is required to be larger than the sealing distance; the exhaust port needs to cover the flat angle positions of the sliding vane and the inner circle of the cylinder as much as possible, so that over-compression is avoided; the exhaust port needs to reduce the intersection position with the cylinder wall and the sliding vane as much as possible, and reduce the clearance; the size of the exhaust port needs to be kept from being too large or too small.
The existing rotor compressor has the exhaust structure shown in fig. 1, and the exhaust port is difficult to meet the conditions at the same time, so that only partial compromise treatment is realized. The existing rotor compressor is insufficient in sealing distance between the exhaust port and the inner circle of the roller, and the utilization rate of the exhaust port is low.
Example 1:
in order to solve the above problems, embodiment 1 provides a compressor pump body exhaust sealing structure, which solves the problem of insufficient sealing distance between the exhaust port 6 and the inner circle of the roller 3, and improves the utilization rate of the exhaust port 6.
As shown in fig. 2-3, the exhaust sealing structure of the pump body of the compressor comprises a cylinder 1, a roller 3, a crankshaft 4 and a flange 2, wherein two ends of the cylinder 1 are sealed by the flange 2, the flange 2 and an inner cavity of the cylinder 1 enclose a sealed cavity 8, the crankshaft 4 penetrates through the flange 2, an eccentric block 5 is arranged on the crankshaft 4, the roller 3 is sleeved outside the eccentric block 5, and the eccentric block 5 and the roller 3 are both positioned in the cavity 8;
the device further comprises a sealing block 7, wherein the sealing block 7 is arranged between the roller 3 and the eccentric block 5;
at least one flange 2 is provided with an exhaust port 6, the inner end of the exhaust port 6 is positioned between the inner circle of the roller 3 (namely the inner wall of the roller) and the inner side surface of the sealing block 7, and the outer end of the exhaust port 6 is positioned outside the inner wall of the cylinder 1;
the end surfaces of the sealing block 7 and the end surfaces of the roller 3 are in sealing fit with the exhaust port 6 so as to ensure that the gap requirements of sealing and movement are met;
specifically, the inner circle of the roller 3, the sealing block 7 and the exhaust port 6 are required to be sealed, and the minimum sealing distance is generally required to be 0.5-5.0mm; meanwhile, the gaps between the roller 3 and the sealing block 7 and the upper flange 2 are small enough, and generally 0.010-0.050mm is required; while the gap between the eccentric mass 5 of the crankshaft 4 and the flange 2 is generally relatively large (> 0.05 mm), it is not necessary to meet the sealing requirements.
In the embodiment, the gap between the end face of the roller 3 and the flange 2 is 0.01-0.05mm, and the gap between the end face of the eccentric block 5 and the upper flange 2 is more than 0.05mm.
In this embodiment, to ensure that the gap requirement of sealing and movement is met, the sealing distance between the end surface of the roller 3, which is matched with the exhaust port 6, and the exhaust port 6 is 0.5-5.0mm, and at least the part of the end surface of the roller 3, which is matched with the exhaust port 6, meets the gap; in order to ensure that the gap requirements of sealing and movement are met, the sealing distance between the end surface of the sealing block 7 matched with the exhaust port 6 and the exhaust port 6 is 0.5-5.0mm, and at least the part of the end surface of the eccentric block 5 matched with the exhaust port 6 meets the gap.
As can be seen from the comparison between the figure 2 and the figure 1, by adding the sealing block 7, the exhaust sealing structure of the pump body of the compressor can obtain a larger sealing distance L, the exhaust port 6 can not be limited by the size of the inner circle, and compared with the existing compressor, the exhaust port 6 needs to be positioned outside the inner circle of the roller 3, in the structure, the exhaust port 6 moves inwards, and the exhaust port 6 spans the inner circle of the roller 3 and can still meet the sealing requirement; at the same time, the exhaust port 6 with the structure moves inwards, so that the correlation between the exhaust port 6 and the wall of the cylinder 1 can be reduced, the clearance is reduced, and the exhaust smoothness is improved.
In this embodiment, the sealing block 7 is embedded between the roller 3 and the eccentric block 5, or may be welded, adhered, inserted, or the like, so long as the connection among the sealing block 7, the roller 3, and the eccentric block 5 is achieved, and the sealing block, the roller 3, and the eccentric block can move together with the crankshaft 4.
In this embodiment, the outer circumferential side surface of the sealing block 7 is an arc surface adapted to the inner circle of the roller 3, and the inner side surface of the sealing block 7 is connected with the eccentric block 5.
In practical application, the inner side surface of the sealing block 7 is a plane, and the connecting surface of the eccentric block 5 and the sealing block 7 is a plane, and of course, the connecting surface can also be in the form of a stepped surface, an inclined surface, concave-convex fit and the like.
In this embodiment, the radius of the cambered surface of the sealing block 7 is not smaller than the radius of the eccentric block 5.
In practical applications, it may be designed that the radius of the sealing block 7 is the same as that of the eccentric block 5, and the sealing block 7 and the eccentric block 5 are combined to form a cylinder.
Example 2:
as shown in fig. 4 to 5, embodiment 2 has the same technical effect as embodiment 1, except that embodiment 2 is formed by integrating the seal block 7 with the inner circle of the roller 3 on the basis of embodiment 1.
Example 3:
as shown in fig. 6 to 7, embodiment 3 has the same technical effect as embodiment 1, except that embodiment 3 is formed by integrating the seal block 7 with the eccentric block 5 on the basis of embodiment 1.
Example 4:
In this embodiment, the compressor pump body exhaust gas seal structure of the compressor is the compressor pump body exhaust gas seal structure of embodiment 1, embodiment 2 or embodiment 3.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters refer to like items and, thus, once an item is defined, no further discussion thereof is necessary in the following.
In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the indicated azimuth or positional relationships, merely for convenience of describing the present application and simplifying the description, and without being stated to the contrary, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe spatial positional relationships of features. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted.
In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.
If the application discloses or relates to components or structures that are fixedly connected to each other, then unless otherwise stated, the fixedly connected structure is understood as: a detachable fixed connection (e.g. using a bolt or screw connection) can also be understood as: the non-detachable fixed connection (e.g. riveting, welding), of course, the mutual fixed connection may also be replaced by an integral structure (e.g. integrally formed using a casting process) (except for obviously being unable to use an integral forming process).
While the foregoing is directed to the preferred embodiment, other and further embodiments of the utility model will be apparent to those skilled in the art from the following description, wherein the utility model is described, by way of illustration and example only, and it is intended that the utility model not be limited to the specific embodiments illustrated and described, but that the utility model is to be limited to the specific embodiments illustrated and described.
Claims (10)
1. The utility model provides a compressor pump body exhaust seal structure, includes cylinder, roller, bent axle, flange, the cylinder both ends are all sealed through the flange, and the inner chamber of flange and cylinder encloses airtight cavity, and the bent axle runs through the flange, is provided with eccentric block on the bent axle, and the roller suit is outside the eccentric block, and eccentric block, roller are all located the cavity;
the method is characterized in that:
the sealing block is arranged between the roller and the eccentric block;
at least one flange is provided with an exhaust port, the inner end of the exhaust port is positioned between the inner circle of the roller and the inner side surface of the sealing block, and the outer end of the exhaust port is positioned at the outer side of the inner wall of the cylinder;
the end face of the sealing block and the end face of the roller are in sealing fit with the exhaust port.
2. The compressor pump body bleed seal arrangement of claim 1, wherein: the sealing block is inlaid between the roller and the eccentric block.
3. The compressor pump body bleed seal arrangement of claim 1, wherein: the outer circumferential side surface of the sealing block is an arc surface matched with the inner circle of the roller, and the inner side surface of the sealing block is connected with the eccentric block.
4. A compressor pump body bleed seal arrangement according to claim 3, wherein: the cambered surface radius of the sealing block is not smaller than the radius of the eccentric block.
5. The compressor pump body bleed seal arrangement of claim 4, wherein: the radius of the sealing block is the same as that of the eccentric block, and the sealing block and the eccentric block are combined to form a cylinder.
6. A compressor pump body bleed seal arrangement according to claim 3, wherein: the sealing block is integrated with the inner circle of the roller.
7. A compressor pump body bleed seal arrangement according to claim 3, wherein: the sealing block and the eccentric block are integrally manufactured.
8. The compressor pump body bleed seal arrangement of claim 1, wherein: the sealing distance between the end face of the roller and the exhaust port is 0.5-5.0mm, and the sealing distance between the end face of the sealing block and the exhaust port is 0.5-5.0mm.
9. The compressor pump body bleed seal arrangement of claim 8, wherein: the gap between the end face of the roller and the flange is 0.01-0.05mm, and the gap between the end face of the eccentric block and the upper flange is more than 0.05mm.
10. A compressor, characterized in that: a compressor pump body bleed seal arrangement comprising any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222910173.XU CN219139371U (en) | 2022-11-02 | 2022-11-02 | Compressor pump body exhaust seal structure and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222910173.XU CN219139371U (en) | 2022-11-02 | 2022-11-02 | Compressor pump body exhaust seal structure and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219139371U true CN219139371U (en) | 2023-06-06 |
Family
ID=86563975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222910173.XU Active CN219139371U (en) | 2022-11-02 | 2022-11-02 | Compressor pump body exhaust seal structure and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219139371U (en) |
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2022
- 2022-11-02 CN CN202222910173.XU patent/CN219139371U/en active Active
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