CN114542433A - Integrated valve seat and compressor - Google Patents
Integrated valve seat and compressor Download PDFInfo
- Publication number
- CN114542433A CN114542433A CN202011303496.1A CN202011303496A CN114542433A CN 114542433 A CN114542433 A CN 114542433A CN 202011303496 A CN202011303496 A CN 202011303496A CN 114542433 A CN114542433 A CN 114542433A
- Authority
- CN
- China
- Prior art keywords
- cover plate
- valve seat
- exhaust port
- cylinder
- 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.)
- Pending
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Classifications
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- 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
- F04B39/10—Adaptations or arrangements of distribution members
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- 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
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/102—Adaptations or arrangements of distribution members the members being disc valves
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- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
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- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/125—Cylinder heads
Abstract
The invention provides an integrated valve seat and a compressor, wherein the integrated valve seat comprises: one side of the cover plate closes an exhaust port of the cylinder cover; the elastic restraint parts and the cover plate are integrally formed, the first end of each elastic restraint part is connected with the cover plate, and the second end of each elastic restraint part is fixed on the cylinder cover. The invention can reduce the cost of parts by canceling the grooving of the cylinder cover, and the valve plate and the baffle plate are integrated to reduce the material cost, thereby greatly reducing the overall manufacturing cost of the compressor.
Description
Technical Field
The invention relates to the field of compressors, in particular to an integrated valve seat and a compressor.
Background
The existing cylinder cover is arranged and sealed by adopting a method of a baffle plate and a valve plate to maintain pressure and seal an exhaust port, the baffle plate and the valve plate are fixed with the cylinder cover in a riveting/bolt mode, the connection scheme is greatly influenced by the precision of a cylinder cover valve plate groove, and once the valve plate groove is poor, batch leak detection is poor and reworking cannot be carried out.
FIG. 1 is a schematic illustration of a prior art installed valve seat. FIG. 2 is a cross-sectional view of a prior art installed valve seat. As shown in fig. 1 and 2, a crankshaft 11 is disposed in the center of a cylinder head 1 of the compressor, a valve seat 2 can be disposed on the periphery of the cylinder head 1, the valve seat 2 is generally of a reed structure, the reed structure is composed of a valve sheet 23 and a baffle 21, and the valve sheet 23 and the baffle 21 are mounted on a valve seat body of the compressor to form a valve seat assembly. Wherein, the first end of valve sheet 23 covers on the discharge port 13 of the compressor. The exhaust port 13 needs to be periodically exhausted, and the valve sheet 23 sealed at the exhaust port 13 also needs to be periodically tilted so as to realize the periodic opening of the exhaust port 13. In order to avoid excessive opening of the valve plate 23, a baffle plate 21 is further arranged on the valve plate 23, the baffle plate 21 is pressed on the valve plate 23 in a pressing mode, and the second end of the baffle plate 21 and the second end of the valve plate 23 are fixed in the mounting hole 12 of the cylinder cover 1 through a bolt 22. Under the action of the air flow in the compressor, the first end of the baffle 21 can tilt up effectively along with the valve sheet 23, and after the air flow pressure is weakened, the baffle 21 presses down to drive the valve sheet 23 to close the exhaust port 13. In the structure, the valve plate 23 and the baffle 21 are integrally in an oval or strip shape, which occupies a larger area on the surface of the cylinder cover 1, and the mounting hole 12 must be machined on the surface of the cylinder cover 1, so that the process steps are increased, the deformation of the cylinder cover 1 is easily caused in the process of machining the mounting hole 12, and the sealing effect of the compressor is easily weakened or the vibration of the compressor during working is increased.
Therefore, the invention provides an integrated valve seat and a compressor.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an integrated valve seat and a compressor, which overcome the difficulties in the prior art, reduce the cost of parts by canceling a cylinder cover slot, reduce the material cost by integrating a valve plate and a baffle plate, and greatly reduce the overall manufacturing cost of the compressor.
An embodiment of the present invention provides an integrated valve seat, comprising:
one side of the cover plate closes an exhaust port of the cylinder cover;
the elastic restraint parts and the cover plate are integrally formed, the first end of each elastic restraint part is connected with the cover plate, and the second end of each elastic restraint part is fixed on the cylinder cover.
Preferably, the second end of the elastic restraint member is pressure-welded to a surface of the cylinder head, and the elastic restraint member provides a downward force to the cover plate toward the exhaust port.
Preferably, as the air pressure of the air flow in the compressor cylinder increases, the elastic restraint member is lifted in a direction away from the cylinder cover, so that the cover plate is lifted by the air flow in the compressor and leaves the exhaust port, and the air flow in the compressor cylinder flows out from a gap between the cover plate and the exhaust port.
Preferably, when the pressure of the gas flow in the compressor cylinder is reduced, the elastic restraint member provides a restoring force to the cover plate to press the cover plate against the exhaust port, so that the cover plate closes the exhaust port of the cylinder cover again.
Preferably, the elastic restraining members are radially arranged on the surface of the cylinder head with the cover plate as a center.
Preferably, the exhaust port has an annular raised rim, and the cover plate closes an opening of the raised rim.
Preferably, the elastic restraint comprises a first connecting rib and a second connecting rib;
the first end of the first connecting rib is connected with the cylinder cover, the first end of the second connecting rib is connected with the cover plate, and the second end of the first connecting rib is flexibly connected with the second end of the second connecting rib.
Preferably, the joint of the first and second connecting ribs has an elastic restoring force directed toward the cylinder head.
Preferably, a bendable stress dissipation groove is formed at a connection position of the second end of the first connection rib and the second end of the second connection rib, and a height of a gap between the cover plate and the exhaust port is changed along with a bending state of the stress dissipation groove.
Preferably, the thickness of the cover plate is greater than or equal to the thickness of the elastic constraining member.
Preferably, the cover plate and the elastic restraint member are made of the same material and are integrally formed.
Preferably, the first connection rib has a thickness equal to or greater than a thickness of the second connection rib, and the first connection rib has a thickness equal to or greater than a thickness of the stress dissipation groove.
Embodiments of the present invention also provide a compressor, including: such as the one-piece valve seat described above.
The integrated valve seat and the compressor can be used for eliminating the riveting method of the traditional cylinder cover grooving machine, the valve plate baffle is made into an integrated body, the valve plate baffle is connected with the cylinder cover in a pressure welding mode, the cylinder cover grooving is eliminated, the part cost is reduced, the material cost is reduced by integrating the valve plate and the baffle, the overall manufacturing cost of the compressor is greatly reduced, and due to the fact that the holes of the cylinder cover are reduced, the process steps are reduced, the deformation of the processed cylinder cover is avoided, the sealing effect of the compressor is enhanced, and the vibration of the compressor during working is reduced.
Drawings
Other features, objects and advantages of the present invention will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
FIG. 1 is a schematic illustration of a prior art installed valve seat.
FIG. 2 is a cross-sectional view of a prior art installed valve seat.
FIG. 3 is a schematic illustration of the installed valve seat of the present invention.
FIG. 4 is a cross-sectional view of the installed valve seat of the present invention. And
FIG. 5 is a cross-sectional view of the valve seat of the present invention in use after installation.
Reference numerals
1 Cylinder cover
11 crankshaft
12 mounting hole
13 exhaust port
14 raised edge
2 valve seat
21 baffle plate
22 bolt
23 valve sheet
31 cover plate
32 elastic restraint
321 first connecting rib
322 second connecting rib
d clearance
F direction of jacking
G direction of air flow
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as 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 concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted.
FIG. 3 is a schematic illustration of the installed valve seat of the present invention. FIG. 4 is a cross-sectional view of the installed valve seat of the present invention. FIG. 5 is a cross-sectional view of the valve seat of the present invention in use after installation. As shown in fig. 3 to 5, the integrated valve seat of the present invention comprises: a cover plate 31 and at least two elastic restraining members 32. One side of the cover plate 31 closes the exhaust port 13 of the cylinder head 1. The elastic restraint 32 is formed integrally with the cover plate 31, and a first end of the elastic restraint 32 is connected to the cover plate 31 and a second end thereof is fixed to the cylinder head 1.
In a preferred embodiment, the cover plate 31 has a thickness equal to or greater than the thickness of the elastic constraints 32.
In a preferred embodiment, the cover plate 31 and the elastic constraining member 32 are integrally formed of the same material.
In a preferred embodiment, the second end of the elastic restraint member 32 is pressure welded to the surface of the cylinder head 1, and the elastic restraint member 32 provides a downward pressure to the cover plate 31 toward the exhaust port 13.
In a preferred embodiment, as the pressure of the air flow in the compressor cylinder increases, the elastic restraint member 32 is lifted away from the cylinder head 1, so that the cover plate 31 is lifted by the air flow in the compressor and is separated from the exhaust port 13, and the air flow in the compressor cylinder flows out from the gap d between the cover plate 31 and the exhaust port 13.
In a preferred embodiment, when the pressure of the gas flow in the compressor cylinder is reduced, the elastic constraint 32 provides a return force to the cover plate 31 towards the outlet 13, causing the cover plate 31 to re-close the outlet 13 of the head 1.
In a preferred embodiment, the elastic constraints 32 are radially arranged on the surface of the head 1, centered on the cover plate 31.
In a preferred embodiment, the vent 13 has an annular raised rim 14, and the cover plate 31 closes the opening of the raised rim 14. A height difference is formed between the raised rim 14 and the cylinder head 1 so that the elastic restraint 32 exerts a diagonal tensile force on the cover plate 31, so that the cover plate 31 is pressed toward the exhaust port 13 as much as possible.
In a preferred embodiment, the elastic restraint 32 comprises a first connecting rib 321 and a second connecting rib 322;
the first end of the first connecting rib 321 is connected to the cylinder head 1, the first end of the second connecting rib 322 is connected to the head plate 31, and the second end of the first connecting rib 321 is flexibly connected to the second end of the second connecting rib 322.
In a preferred embodiment, the connection of the first and second connection ribs 321 and 322 has an elastic restoring force directed toward the cylinder head 1.
In a preferred embodiment, a bendable stress dissipation groove is formed at a connection point of the second end of the first connection rib 321 and the second end of the second connection rib 322, and a height of the gap d between the cap plate 31 and the exhaust port 13 is changed according to a bent state of the stress dissipation groove.
In a preferred embodiment, the thickness of the first coupling rib 321 is equal to or greater than the thickness of the second coupling rib 322, and the thickness of the first coupling rib 321 is equal to or greater than the thickness of the stress-dissipating groove.
Referring to fig. 4, when the pressure of the gas flow in the compressor cylinder is weak, the second end of the elastic constraining member 32 is pressure-welded to the surface of the cylinder head 1, and the elastic constraining member 32 provides a downward pressure to the cover plate 31 toward the exhaust port 13. Referring to fig. 5, as the air pressure of the air flow in the compressor cylinder increases, the elastic restraint member 32 is lifted in a direction away from the cylinder head 1, so that the cover plate 31 is lifted by the air flow in the compressor in a lifting direction F away from the cylinder head 1 and leaves the exhaust port 13, and the air flow in the compressor cylinder flows out from a gap d between the cover plate 31 and the exhaust port 13 in the air flow direction G. After part of the air flow in the compressor cylinder flows out of the compressor cylinder through the exhaust port 13, the air pressure of the air flow in the compressor cylinder is weakened, and the elastic constraining member 32 provides a restoring force to the cover plate 31 and presses the cover plate 31 against the exhaust port 13, so that the cover plate 31 closes the exhaust port 13 of the cylinder cover 1 again (which is equivalent to restoring to the state of fig. 4).
Embodiments of the present invention also provide a compressor, including: such as the one-piece valve seat described above.
In conclusion, the integrated valve seat and the compressor can be used for eliminating the riveting method of the traditional cylinder cover grooving machine, the valve plate baffle is integrated, the valve plate baffle is connected with the cylinder cover in a pressure welding mode, the cylinder cover grooving is eliminated, the part cost is reduced, the material cost is reduced by integrating the valve plate and the baffle, the overall manufacturing cost of the compressor is greatly reduced, and due to the fact that the hole of the cylinder cover is reduced, the process steps are reduced, the deformation of the processed cylinder cover is avoided, the sealing effect of the compressor is enhanced, and the vibration of the compressor during working is reduced.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (10)
1. An integrated valve seat, comprising:
a cover plate (31), one side of the cover plate (31) closes the exhaust port (13) of the cylinder cover (1);
the cylinder cover comprises at least two elastic restraining pieces (32), the elastic restraining pieces (32) and the cover plate (31) are integrally formed, the first end of each elastic restraining piece (32) is connected with the cover plate (31), and the second end of each elastic restraining piece (32) is fixed to the cylinder cover (1).
2. The one-piece valve seat according to claim 1, wherein the second end of the elastic restraining member (32) is pressure welded to a surface of the cylinder head (1), the elastic restraining member (32) providing a downward pressure to the cover plate (31) against the exhaust port (13).
3. The integrated valve seat according to claim 1, wherein the elastic restraint member (32) is lifted in a direction away from the cylinder head (1) as the pressure of the gas flow in the compressor cylinder increases, so that the cover plate (31) is lifted by the gas flow in the compressor away from the exhaust port (13), and the gas flow in the compressor cylinder flows out from the gap (d) between the cover plate (31) and the exhaust port (13).
4. A one-piece valve seat according to claim 3, wherein said elastic constraint (32) provides a return force to said cover plate (31) towards said exhaust port (13) when the pressure of the gas flow in the compressor cylinder is reduced, causing said cover plate (31) to reclose the exhaust port (13) of the head (1).
5. Unitary valve seat according to claim 1, characterized in that said elastic restraining member (32) is arranged radially with respect to the surface of said head (1) with said cover plate (31) as a centre.
6. The one-piece valve seat according to claim 1, wherein the exhaust port (13) has an annular raised rim (14), and the cover plate (31) closes an opening of the raised rim (14).
7. The one-piece valve seat as claimed in claim 1, wherein the elastic restraint (32) includes a first connecting rib (321) and a second connecting rib (322);
the first end of the first connecting rib (321) is connected with the cylinder cover (1), the first end of the second connecting rib (322) is connected with the cover plate (31), and the second end of the first connecting rib (321) is flexibly connected with the second end of the second connecting rib (322).
8. The one-piece valve seat according to claim 7, wherein the junction of the first connecting rib (321) and the second connecting rib (322) has an elastic return force directed towards the cylinder head (1).
9. The one-piece valve seat according to claim 7, wherein a connection point of the second end of the first connection rib (321) and the second end of the second connection rib (322) is provided with a bendable stress-dissipating groove, and a height of the gap (d) between the cover plate (31) and the exhaust port (13) is changed according to a bent state of the stress-dissipating groove.
10. A compressor, comprising: an integral valve seat as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011303496.1A CN114542433A (en) | 2020-11-19 | 2020-11-19 | Integrated valve seat and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011303496.1A CN114542433A (en) | 2020-11-19 | 2020-11-19 | Integrated valve seat and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114542433A true CN114542433A (en) | 2022-05-27 |
Family
ID=81659827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011303496.1A Pending CN114542433A (en) | 2020-11-19 | 2020-11-19 | Integrated valve seat and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114542433A (en) |
-
2020
- 2020-11-19 CN CN202011303496.1A patent/CN114542433A/en active Pending
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