CN109026598B - Compressor piston with built-in porous longitudinal counterweight device - Google Patents
Compressor piston with built-in porous longitudinal counterweight device Download PDFInfo
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- CN109026598B CN109026598B CN201810683986.5A CN201810683986A CN109026598B CN 109026598 B CN109026598 B CN 109026598B CN 201810683986 A CN201810683986 A CN 201810683986A CN 109026598 B CN109026598 B CN 109026598B
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- Prior art keywords
- counterweight
- hole
- blind hole
- counterweight blind
- piston
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- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 230000005484 gravity Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 229910001060 Gray iron Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
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
- F04B39/0005—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 adaptations of pistons
Abstract
The invention relates to the technical field of compressor parts, in particular to a compressor piston with a built-in porous longitudinally-arranged counterweight device. According to the compressor piston with the built-in porous longitudinal counterweight device, the front counterweight blind hole, the rear counterweight blind hole, the upper counterweight blind hole, the lower counterweight blind hole and the counterweight hole are formed in the piston body, and lead powder is filled into the counterweight blind holes according to actual needs to change counterweight proportions at different positions, so that the mass of each row of pistons is balanced, reciprocating inertia force is balanced, and stable running of the compressor is guaranteed.
Description
Technical Field
The invention relates to the technical field of compressor parts, in particular to a compressor piston with a built-in porous longitudinally-arranged counterweight device.
Background
The compressor is a general machine for increasing the pressure of various gases, and is one of the most extensive products in the mechanical industry. The power plant is widely applied in many departments of national economy, and almost extends to many fields of industry, agriculture, transportation, medical treatment and health, national defense, scientific research and even people's life, and is indispensable power equipment particularly in the aspects of chemical industry, synthesis, coal, petroleum, building construction, ocean engineering and the like. The piston is a main part of a piston compressor and cooperates with the cylinder to form a compression volume. The quality of the piston design is strongly related to the performance of the compressor. The materials commonly used for processing the piston include cast aluminum alloy, gray cast iron, steel materials and the like.
The weight of the piston is designed to be light to reduce the reciprocating inertia force. The mass balance of each row of pistons of the compressors with more than two rows of pistons should be balanced as much as possible according to the principle of inertia force balance. In the design of the compressor piston, the low-pressure stage piston with a larger diameter generally adopts cast aluminum to reduce the mass, and the high-pressure stage piston has a mass close to that of the low-pressure stage piston to achieve the aim of balancing reciprocating inertia force, so that the compressor can stably and reliably operate. However, sometimes, because the cylinder diameter of the low-pressure stage is large and the piston mass is heavy, and the cylinder diameter of the high-pressure stage is small, the piston of the high-pressure stage is difficult to reach the mass of the piston of the low-pressure stage, so that the masses of the pistons of the rows are unbalanced, and the risk that the compressor cannot run stably exists.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: in order to solve the problems existing in the background technology, an improved compressor piston with a built-in porous longitudinally-arranged counterweight device is provided, and the problems that the mass of each row of pistons is unbalanced and the risk that the compressor cannot run stably due to the fact that the mass of a low-pressure-level piston is difficult to reach the mass of a high-pressure-level piston at present are solved.
The technical scheme adopted by the invention for solving the technical problems is as follows: a compressor piston with a built-in porous longitudinal counterweight device comprises a piston body, wherein a middle assembly through hole for installing and fixing a piston rod is formed in the center of the inside of the piston body, a plurality of front counterweight blind holes are formed in the front side of the middle assembly through hole in the upper surface of the piston body, a plurality of rear counterweight blind holes are formed in the rear side of the middle assembly through hole in the upper surface of the piston body, a plurality of upper counterweight blind holes are formed in the upper surface of the piston body and at the upper end of the middle assembly through hole, a plurality of lower counterweight blind holes matched with the upper counterweight blind holes are formed in the lower end of the middle assembly through hole in the piston body, annular counterweight holes used for communicating the upper counterweight blind holes and the lower counterweight blind holes in the corresponding positions are formed in the periphery of the middle assembly through hole in the piston body, and annular counterweight holes used for communicating the upper counterweight blind holes, Lead powder for improving the local gravity of the piston body is filled in the rear counterweight blind hole, the upper counterweight blind hole, the lower counterweight blind hole and the counterweight hole.
furthermore, internal thread sealing holes are formed in the opening positions of the upper ends of the front counterweight blind hole, the rear counterweight blind hole and the upper counterweight blind hole.
Furthermore, the internal thread of the internal thread sealing hole is connected with an external thread plug which is used for closing the openings at the upper ends of the front counterweight blind hole, the rear counterweight blind hole and the upper counterweight blind hole.
Furthermore, the inner hole diameters of the front counterweight blind hole, the rear counterweight blind hole, the upper counterweight blind hole, the lower counterweight blind hole and the counterweight hole are the same.
Furthermore, the distance between the front counterweight blind hole and the middle assembly through hole is the same as the distance between the rear counterweight blind hole at the corresponding position and the middle assembly through hole.
The compressor piston with the built-in porous longitudinal counterweight device has the advantages that the front counterweight blind hole, the rear counterweight blind hole, the upper counterweight blind hole, the lower counterweight blind hole and the counterweight hole are formed in the piston body, and lead powder is filled into the counterweight blind holes according to actual needs to change counterweight proportions at different positions, so that the mass of each row of pistons is balanced, reciprocating inertia force is balanced, and stable operation of the compressor is guaranteed.
Drawings
The invention is further illustrated with reference to the following figures and examples.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
In the drawing, 1, a piston body, 2, a middle assembly through hole, 3, a front counterweight blind hole, 4, a rear counterweight blind hole, 5, an upper counterweight blind hole, 6, a lower counterweight blind hole, 7, a counterweight hole, 8, lead powder, 9, an internal thread sealing hole and 10, an external thread plug are arranged.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
FIG. 1 and FIG. 2 show a compressor piston with a built-in porous longitudinal counterweight device, comprising a piston body 1, wherein a central assembly through hole 2 for installing and fixing a piston rod is arranged at the center position in the piston body 1, 2 front counterweight blind holes 3 are arranged on the front side of the central assembly through hole 2 on the upper surface of the piston body 1, 2 rear counterweight blind holes 4 are arranged on the rear side of the central assembly through hole 2 on the upper surface of the piston body 1, 2 upper counterweight blind holes 5 are arranged on the upper end of the central assembly through hole 2 on the upper surface of the piston body 1, 2 lower counterweight blind holes 6 matched with the upper counterweight blind holes 5 are arranged on the lower end of the central assembly through hole 2 in the piston body 1, an annular counterweight hole 7 for communicating the upper counterweight blind holes 5 and the lower counterweight blind holes 6 at corresponding positions is arranged on the periphery of the central assembly through hole 2 in the piston body 1, lead powder 8 for improving the local gravity of the piston body 1 is filled in the front-arranged counterweight blind hole 3, the rear-arranged counterweight blind hole 4, the upper counterweight blind hole 5, the lower counterweight blind hole 6 and the counterweight hole 7.
Further, the open positions of the upper ends of the prepositioned weight blind hole 3, the postpositioned weight blind hole 4 and the upper counterweight blind hole 5 are all provided with an internal thread sealing hole 9, further, the internal thread sealing hole 9 is internally and threadedly connected with an external thread plug 10 for closing the upper ends of the prepositioned weight blind hole 3, the postpositioned weight blind hole 4 and the upper counterweight blind hole 5, further, the inner hole diameters of the prepositioned weight blind hole 3, the postpositioned weight blind hole 4, the upper counterweight blind hole 5, the lower counterweight blind hole 6 and the counterweight hole 7 are the same, further, the distance between the prepositioned weight blind hole 3 and the middle counterweight through hole 2 is the same as the distance between the postpositioned weight blind hole 4 and the middle counterweight through hole 2 at the corresponding positions, and the compressor piston of the built-in porous longitudinal counterweight device is provided with the prepositioned weight blind hole 3, the postpositioned weight blind hole 4, the upper blind hole 5, the lower counterweight blind hole 5 and the upper counterweight blind, The counterweight blind holes 6 and the counterweight holes 7 are arranged below, and lead powder 8 is filled into the counterweight blind holes according to actual needs to change counterweight proportions at different positions, so that the mass of each row of pistons is balanced, reciprocating inertia force is balanced, and stable operation of the compressor is ensured.
Common material density (g/cm) of piston3): the cast aluminum was 2.68, the gray cast iron was 7.35, and the steel was 7.85. And lead has a density of 11.34, which is about 4.23 times that of cast aluminum, 1.54 times that of gray cast iron, and 1.44 times that of steel, and thus can be used as a weight material for a piston.
Firstly, drilling a hole on the piston, then pouring lead into the threaded hole, then coating thread locking glue on the plug and the threaded hole, plugging the threaded hole with the plug, and finally, flatly lathing the end face of the piston.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. The utility model provides a compressor piston of built-in porous vertical counter weight device, includes piston body (1), characterized by: a middle-placed assembly through hole (2) for installing and fixing a piston rod is formed in the center of the interior of the piston body (1), a plurality of front-placed counterweight blind holes (3) are formed in the front side of the middle-placed assembly through hole (2) on the upper surface of the piston body (1), a plurality of rear-placed counterweight blind holes (4) are formed in the rear side of the middle-placed assembly through hole (2) on the upper surface of the piston body (1), a plurality of upper-placed counterweight blind holes (5) are formed in the upper end of the middle-placed assembly through hole (2) on the upper surface of the piston body (1), a plurality of lower-placed counterweight blind holes (6) matched with the upper-placed counterweight blind holes (5) are formed in the lower end of the middle-placed assembly through hole (2) in the interior of the piston body (1), and annular counterweight holes (7) for communicating the upper-placed counterweight blind holes (5) and the lower-placed counterweight blind holes (6) in corresponding positions are formed in, lead powder for improving the local gravity of the piston body (1) is filled in the front-arranged counterweight blind hole (3), the rear-arranged counterweight blind hole (4), the upper counterweight blind hole (5), the lower counterweight blind hole (6) and the counterweight hole (7);
The distance between the front counterweight blind hole (3) and the middle assembly through hole (2) is the same as the distance between the rear counterweight blind hole (4) at the corresponding position and the middle assembly through hole (2).
2. The compressor piston with built-in porous longitudinal counterweight device according to claim 1, characterized in that: the upper end opening positions of the front counterweight blind hole (3), the rear counterweight blind hole (4) and the upper counterweight blind hole (5) are all provided with internal thread sealing holes (8).
3. The compressor piston with built-in porous longitudinal counterweight device according to claim 2, characterized in that: the internal thread of the internal thread sealing hole (8) is connected with an external thread plug (9) which is used for closing the upper openings of the front counterweight blind hole (3), the rear counterweight blind hole (4) and the upper counterweight blind hole (5).
4. The compressor piston with built-in porous longitudinal counterweight device according to claim 1, characterized in that: the inner bore diameters of the front-arranged counterweight blind hole (3), the rear-arranged counterweight blind hole (4), the upper counterweight blind hole (5), the lower counterweight blind hole (6) and the counterweight hole (7) are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810683986.5A CN109026598B (en) | 2018-06-28 | 2018-06-28 | Compressor piston with built-in porous longitudinal counterweight device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810683986.5A CN109026598B (en) | 2018-06-28 | 2018-06-28 | Compressor piston with built-in porous longitudinal counterweight device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109026598A CN109026598A (en) | 2018-12-18 |
| CN109026598B true CN109026598B (en) | 2019-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810683986.5A Active CN109026598B (en) | 2018-06-28 | 2018-06-28 | Compressor piston with built-in porous longitudinal counterweight device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109026598B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111135885B (en) * | 2020-01-14 | 2021-10-26 | 安徽奇书生物科技有限公司 | Variable injection slide block |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04284190A (en) * | 1991-03-12 | 1992-10-08 | Matsushita Refrig Co Ltd | Sealed type reciprocating compressor |
| CN201133336Y (en) * | 2007-09-28 | 2008-10-15 | 王宏斌 | Compressor piston possessing spring support and guiding piece |
| CN201679680U (en) * | 2010-05-20 | 2010-12-22 | 扎努西电气机械天津压缩机有限公司 | Piston of compressor for refrigerator |
| CN206397690U (en) * | 2017-01-05 | 2017-08-11 | 浙江强盛压缩机制造有限公司 | A kind of split type balancing weight of compressor |
| CN107575361A (en) * | 2017-09-28 | 2018-01-12 | 蚌埠高科能源装备有限公司 | It is a kind of to balance the compressor piston for moving back and forth inertia force |
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2018
- 2018-06-28 CN CN201810683986.5A patent/CN109026598B/en active Active
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| Publication number | Publication date |
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| CN109026598A (en) | 2018-12-18 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200915 Address after: 8521 No. 233000 Anhui city of Bengbu province Mount Huangshan Avenue Patentee after: BENGBU GAOKE ENERGY EQUIPMENT Co.,Ltd. Address before: 233000 workshop of No. 8521 Mount Huangshan Avenue, Bengbu, Anhui Patentee before: BENGBU GAOKE RUILI COMPRESSOR Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A compressor piston with built-in multi hole longitudinal counterweight device Effective date of registration: 20201203 Granted publication date: 20191217 Pledgee: Bengbu financing guarantee Group Co.,Ltd. Pledgor: BENGBU GAOKE ENERGY EQUIPMENT Co.,Ltd. Registration number: Y2020980008819 |
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Date of cancellation: 20211229 Granted publication date: 20191217 Pledgee: Bengbu financing guarantee Group Co.,Ltd. Pledgor: BENGBU GAOKE ENERGY EQUIPMENT Co.,Ltd. Registration number: Y2020980008819 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Compressor piston with built-in multi hole longitudinal counterweight device Effective date of registration: 20221221 Granted publication date: 20191217 Pledgee: Bengbu financing guarantee Group Co.,Ltd. Pledgor: BENGBU GAOKE ENERGY EQUIPMENT Co.,Ltd. Registration number: Y2022980028392 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20191217 Pledgee: Bengbu financing guarantee Group Co.,Ltd. Pledgor: BENGBU GAOKE ENERGY EQUIPMENT Co.,Ltd. Registration number: Y2022980028392 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |