CN108953107B - Compressor piston with built-in split type counterweight device - Google Patents
Compressor piston with built-in split type counterweight device Download PDFInfo
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- CN108953107B CN108953107B CN201810683741.2A CN201810683741A CN108953107B CN 108953107 B CN108953107 B CN 108953107B CN 201810683741 A CN201810683741 A CN 201810683741A CN 108953107 B CN108953107 B CN 108953107B
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- plug body
- thread connecting
- limiting ring
- piston
- internal thread
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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
- F04B39/0005—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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention relates to the technical field of compressor parts, in particular to a compressor piston with a built-in split type counterweight device. The compressor piston with the built-in split type counterweight device is formed by splicing the split type middle plug body, the left plug body and the right plug body are connected to the limiting ring through threads to fix the piston body and the counterweight lead blocks in the counterweight grooves, and the counterweight lead blocks in the counterweight grooves at different positions can be freely assembled and disassembled according to needs, so that the mass of each row of pistons is balanced, the reciprocating inertia force is balanced, and the stable operation of the compressor is ensured.
Description
Technical Field
The invention relates to the technical field of compressor parts, in particular to a compressor piston with a built-in split type 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, the improved compressor piston with the built-in split type counterweight device is provided, and the problems that the quality of each row of pistons is unbalanced and the risk that the compressor cannot run stably due to the fact that the quality of a low-pressure-level piston is difficult to reach by a high-pressure-level piston at present are solved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a compressor piston of built-in split type counter weight device, includes piston body and piston rod, the piston rod lateral wall on have outside bellied integrative structure spacing ring, the piston body put the cock body by in, put the cock body on a left side and put the cock body concatenation on the right side and form, left side put cock body right side wall, put on the corresponding position of cock body both sides wall and put on the right side and put on the cock body left side wall and all seted up the annular counterweight groove of a plurality of diameters variation in size, the inside joint of counterweight groove have annular counterweight lead block.
Furthermore, the left plug body and the right plug body are internally provided with assembling holes with the same size as the outer diameter of the piston rod, and the middle plug body is internally provided with limiting holes with the same size as the outer diameter of the limiting ring.
Furthermore, the left plug placing body and the right plug placing body are the same in size.
Furthermore, the arc surface at the inner side of the left plug body is provided with a left internal thread connecting groove with an opening at the right side, the arc surface at the inner side of the right plug body is provided with a right internal thread connecting groove with an opening at the left side, both ends of the arc surface at the outer side of the limit ring are provided with external thread connecting surfaces matched with the left internal thread connecting groove and the right internal thread connecting groove, the left plug body is sleeved on the left external thread connecting surface of the limit ring through a left internal thread connecting groove and is fixedly connected with the limit ring through threads, the right plug body is sleeved on the external thread connecting surface on the right side of the limiting ring through a right internal thread connecting groove and is fixedly connected with the limiting ring through threads, the piston rod is inserted into the middle-placed plug body through the outer limit ring and is movably connected with the middle-placed plug body, the left plug body and the right plug body are connected on the limiting ring through threads and the limiting ring is fixedly connected with the middle plug body.
Furthermore, the left internal thread connecting groove and the right internal thread connecting groove are the same in size.
The compressor piston with the built-in split type counterweight device has the advantages that the split type middle plug body, the left plug body and the right plug body are spliced to form the piston body, the left plug body and the right plug body are connected to the limiting ring through threads to fix the piston body and the counterweight lead blocks in the counterweight grooves, and the counterweight lead blocks in the counterweight grooves at different positions can be freely assembled and disassembled as required, so that the mass of each row of pistons is balanced, the reciprocating inertia force is balanced, and the stable operation of the compressor is ensured.
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 piston rod, 4, a limiting ring, 5, a middle plug body, 6, a left plug body, 7, a right plug body, 8, a counterweight groove, 9, a counterweight lead block, 10, an assembly hole, 11, a limiting hole, 12, a left internal thread connecting groove, 13, a right internal thread connecting groove and 14, an external thread connecting surface.
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 of built-in split type counter weight device, including piston body 1 and piston rod 2, have outside bellied integrative structure spacing ring 4 on the 2 lateral walls of piston rod, piston body 1 is put cock body 5 by in, the left side is put cock body 6 and is put cock body 7 concatenation on the right side and is constituteed, put cock body 6 right side wall on the left side, all offer 2 annular counter weight grooves 8 of diameter variation in size on the corresponding position of the 5 both sides wall of in-put cock body and the 7 left side wall of the right side of the cock body of putting, the inside joint in counter weight groove 8 has annular counter weight lead 9.
Further, the left-placed plug body 6 and the right-placed plug body 7 are internally provided with an assembly hole 10 with the same size as the outer diameter of the piston rod 2, the middle-placed plug body 5 is internally provided with a limiting hole 11 with the same size as the outer diameter of the limiting ring 4, further, the left-placed plug body 6 and the right-placed plug body 7 are identical in size, further, the inner arc-shaped surface of the left-placed plug body 6 is provided with a left-placed internal thread connecting groove 12 with an opening on the right side, the inner arc-shaped surface of the right-placed plug body 7 is provided with a right-placed internal thread connecting groove 13 with an opening on the left side, both ends of the outer arc-shaped surface of the limiting ring 4 are respectively provided with an external thread connecting surface 14 matched with the left-placed internal thread connecting groove 12 and the right-placed internal thread connecting groove 13, the left-placed plug body 6 is sleeved on the left-side external thread connecting surface 14 of the limiting ring 4 and is in threaded connection with the limiting ring 4 through the left, the piston rod 2 is inserted into the middle-placed plug body 5 through the outer side limit ring 4 and is movably connected with the middle-placed plug body 5, the left-placed plug body 6 and the right-placed plug body 7 are connected on the limit ring 4 through threads and are fixedly connected with the limit ring 4 and the middle-placed plug body 5, further, the left-placed internal thread connecting groove 12 and the right-placed internal thread connecting groove 13 are the same in size, the compressor piston of the built-in split type counterweight device adopts the split type middle-placed plug body 5, the left-placed plug body 6 and the right-placed plug body 7 to be spliced to form the piston body 1, and the left-placed plug body 6 and the right-placed plug body 7 are connected on the limit ring 4 through threads to fix the counterweight lead block 9 inside the piston body 1 and the counterweight groove, the counterweight lead blocks 9 in the counterweight grooves 8 at different positions can be freely assembled and disassembled as required, so that the mass of each row of pistons is balanced, the reciprocating inertia force is balanced, and the stable operation of the compressor is ensured.
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 (3)
1. The utility model provides a compressor piston of built-in split type counter weight device, includes piston body (1) and piston rod (2), characterized by: the piston rod (2) is provided with an outwardly-protruded integral-structure limiting ring (4) on the outer side wall, the piston body (1) is formed by splicing a middle-arranged plug body (5), a left-arranged plug body (6) and a right-arranged plug body (7), a plurality of annular counterweight grooves (8) with different diameters are formed in the corresponding positions of the right side wall of the left-arranged plug body (6), the two side walls of the middle-arranged plug body (5) and the left side wall of the right-arranged plug body (7), and annular counterweight lead blocks (9) are clamped in the counterweight grooves (8);
The left plug body (6) and the right plug body (7) are internally provided with assembling holes (10) with the same size as the outer diameter of the piston rod (2), and the middle plug body (5) is internally provided with a limiting hole (11) with the same size as the outer diameter of the limiting ring (4);
the right side of the inner arc surface of the left plug body (6) is provided with a left internal thread connecting groove (12) with an opening, the left side of the inner arc surface of the right plug body (7) is provided with a right internal thread connecting groove (13) with an opening, both ends of the outer arc surface of the limiting ring (4) are provided with external thread connecting surfaces (14) matched with the left internal thread connecting groove (12) and the right internal thread connecting groove (13), the left plug body (6) is sleeved on the left external thread connecting surface (14) of the limiting ring (4) through the left internal thread connecting groove (12) and is fixedly connected with the limiting ring (4) through threads, the right plug body (7) is sleeved on the right external thread connecting surface (14) of the limiting ring (4) through the right internal thread connecting groove (13) and is fixedly connected with the limiting ring (4) through threads, the piston rod (2) is inserted into the middle plug body (5) through the outer limiting ring (4) and is movably connected with the middle plug body (5), the left plug placing body (6) and the right plug placing body (7) are connected to the limiting ring (4) through threads, and the limiting ring (4) is fixedly connected with the middle plug placing body (5).
2. The compressor piston with the built-in split counterweight device as claimed in claim 1, wherein: the left plug placing body (6) and the right plug placing body (7) are the same in size.
3. The compressor piston with the built-in split counterweight device as claimed in claim 1, wherein: the left internal thread connecting groove (12) and the right internal thread connecting groove (13) are the same in size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810683741.2A CN108953107B (en) | 2018-06-28 | 2018-06-28 | Compressor piston with built-in split type counterweight device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810683741.2A CN108953107B (en) | 2018-06-28 | 2018-06-28 | Compressor piston with built-in split type counterweight device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108953107A CN108953107A (en) | 2018-12-07 |
| CN108953107B true CN108953107B (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810683741.2A Active CN108953107B (en) | 2018-06-28 | 2018-06-28 | Compressor piston with built-in split type counterweight device |
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| Country | Link |
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| CN (1) | CN108953107B (en) |
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 CN201810683741.2A patent/CN108953107B/en active Active
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| Publication number | Publication date |
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| CN108953107A (en) | 2018-12-07 |
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Effective date of registration: 20201222 Address after: 232000: 50m to the east of Hehuai road and north of Beizhan Road, Shannan new area, Huainan City, Anhui Province Patentee after: Huainan Baibang Pneumatic Technology Co.,Ltd. Address before: Workshop 1, no.8521 Huangshan Avenue, Bengbu City, Anhui Province 233000 Patentee before: BENGBU GAOKE RUILI COMPRESSOR Co.,Ltd. |