CN110131132A - A kind of guide ring structure and its installation method - Google Patents
A kind of guide ring structure and its installation method Download PDFInfo
- Publication number
- CN110131132A CN110131132A CN201910463598.0A CN201910463598A CN110131132A CN 110131132 A CN110131132 A CN 110131132A CN 201910463598 A CN201910463598 A CN 201910463598A CN 110131132 A CN110131132 A CN 110131132A
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- CN
- China
- Prior art keywords
- guide ring
- block
- piston body
- installation method
- arcuate guide
- 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.)
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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
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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
-
- 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
- F04B39/14—Provisions for readily assembling or disassembling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The present invention relates to piston compressor inner piston body technique fields, and specifically a kind of guide ring structure and its installation method, can effectively solve the problem that the problem of cylinder bore diameter increase leads to increased costs, while the present invention also provides above-mentioned guide ring installation methods；It includes piston body, and arcuate guide ring is equipped at the pressure-bearing of the piston body lower end, and arcuate guide ring both ends are provided with the block for being installed on the piston body, and there are gaps between the block and arcuate guide ring end face；Installation method is the following steps are included: (1) demifacet under piston body circumferentially opens up two mounting holes；(2) block is installed respectively on two mounting holes；(3) arcuate guide ring is installed in the arc mounting groove that two blocks are formed, there are gaps between arcuate guide ring end face and block.
Description
Technical field
The present invention relates to piston compressor inner piston body technique field, a kind of specific guide ring structure and its installation method.
Background technique
Technique is that one kind is widely used in petrochemical industry with reciprocating-piston compressor, passes through crank link mechanism band
Piston bar (piston body) carries out the universal machine of compression pressurization to fixed volume cylinder interior gas.Piston body is done in cylinder
Cyclic movement, the guide ring filled on the piston body play supporting role, such as Fig. 1.Simultaneously because guide ring is run in piston
When can rotate and expanded by heating, guide ring generally use whole coil structures, open contrary pressure relief groove above, and there are sufficient amount
Opened gap, such as Fig. 2, Fig. 3.
The service life of guide ring and its than being pressed with much relations.The weight bearing of guide ring is that the weight of entire piston component adds half
Piston rod weight, bearing area are the projected area of 120 ° of arc length of all guide rings.Guide ring uses nonmetal parts, oil-free
The ratio pressure born when lubrication is no more than 0.035N/mm2, there is the ratio born when oil lubrication pressure to be no more than 0.07N/mm2.It is counted than pressure
Calculate formula are as follows:
LB=(MPA+(MR/2))/(2*SIN60°*D*W)
LB: the ratio pressure born on guide ring, N/mm2
MPA: piston component weight, N
MR: piston rod weight, N
D: cylinder bore diameter, mm
W: the overall width of all guide rings, mm
When cylinder bore diameter increases, the weight of piston component is at a square increase, for the ratio pressure for keeping guide ring, the width of guide ring
It needs to increase, the weight of guide ring increases, and guide ring cost also increases.
As cylinder bore diameter 700mm or more, the cost accounting of guide ring is significantly higher.
Summary of the invention
In order to solve the problems, such as that existing cylinder bore diameter increase causes cost also to increase, the present invention provides a kind of guide ring knots
Structure can effectively solve the problem that the problem of cylinder bore diameter increase leads to increased costs, while the present invention also provides above-mentioned guide rings
Installation method.
Its technical solution is such that a kind of guide ring structure comprising piston body, which is characterized in that the piston body
Arcuate guide ring is installed, arcuate guide ring both ends are provided with the block for being installed on the piston body, institute at the pressure-bearing of lower end
State between block and arcuate guide ring end face that there are gaps.
It is further characterized by the central angle δ of the arcuate guide ring is 118 ° -119 °；
The central angle alpha for the arc mounting groove that two blocks are symmetrically arranged and medial surface is formed is 120 °；
The block is vee-block.
A kind of guide ring installation method, which is characterized in that itself the following steps are included:
(1) demifacet circumferentially opens up two mounting holes under piston body；
(2) block is installed respectively on two mounting holes；
(3) arcuate guide ring is installed in the arc mounting groove that two blocks are formed, is stayed between arcuate guide ring end face and block
There is gap.
It is further characterized by the central angle of two mounting holes is 125 ° -130 ° in step (1) and bilateral symmetry is opened
If；
Ream puts down the disk of depth 2-3mm on the inside of two mounting holes in step (1), for installing bolt；
The V-shaped groove that block inboard side metalworking is 170 ° -175 ° at angle β in step (2), the angle γ of block left and right sides
It is 5 ° -10 °；
Block is coupled by screw and self-locking nut in step (2)；
Clearance t in step (3) between arcuate guide ring end face and block is 2-3mm.
After structure and installation method of the invention, the whole coil structures of script are changed to arc, and be arranged in lower end
At pressure-bearing, guarantee to greatly reduce cost while guide ring effect；Further, block is vee-block, and fitting is stablized, and is rushed
It is not moved after hitting, ensure that whole reliability.
Detailed description of the invention
Fig. 1 is existing guide ring schematic view of the mounting position；
Fig. 2 is existing guide ring front schematic view；
Fig. 3 is existing guide ring side schematic view；
Fig. 4 is guide ring scheme of installation of the present invention；
Fig. 5 is enlarged diagram at block of the present invention；
Fig. 6 is block schematic diagram of the present invention；
Fig. 7 is arcuate guide ring structure schematic diagram of the present invention；
Fig. 8 is enlarged diagram at mounting hole of the present invention.
Specific embodiment
As shown in Fig. 4 to Fig. 8, a kind of guide ring structure comprising piston body 1 is equipped with arc at 1 lower end pressure-bearing of piston body
Shape guide ring 3,3 both ends of arcuate guide ring are provided with the block 2 for being installed on piston body 1, block 2 and 3 end face of arcuate guide ring it
Between there are gaps.The central angle δ of arcuate guide ring 3 is 118 ° -119 °；Two blocks 2 are symmetrically arranged and medial surface is formed
Arc mounting groove 7 central angle alpha be 120 °；Block 2 is vee-block.
It is described in detail below for the installation method of arcuate guide ring 3.
Embodiment one: a kind of guide ring installation method comprising following steps:
(1) demifacet circumferentially opens up two mounting holes 8 under piston body 1, and the central angle of two mounting holes is 125 ° and left and right pair
Title opens up, and two 8 inside reams of mounting hole put down the disk of depth 2mm, for installing bolt；
(2) block 2, the V-shaped groove that block inboard side metalworking is 170 ° at angle β, block are installed respectively on two mounting holes 8
The angle γ of left and right sides is 5 °, and block 2 is coupled by screw 4, self-locking nut 5 and plain washer 6；
(3) arcuate guide ring 3 is installed in the arc mounting groove 7 that two blocks 2 are formed, 3 end face of arcuate guide ring and block it
Between there are 2mm clearance ts.
Embodiment two: a kind of guide ring installation method comprising following steps:
(1) demifacet circumferentially opens up two mounting holes 8 under piston body 1, and the central angle of two mounting holes is 126 ° and left and right pair
Title opens up, and two 8 inside reams of mounting hole put down the disk of depth 2.5mm, for installing bolt；
(2) block 2, the V-shaped groove that block inboard side metalworking is 173 ° at angle β, block are installed respectively on two mounting holes 8
The angle γ of left and right sides is 6 °, and block 2 is coupled by screw 4, self-locking nut 5 and plain washer 6；
(3) arcuate guide ring 3 is installed in the arc mounting groove 7 that two blocks 2 are formed, 3 end face of arcuate guide ring and block it
Between there are 2.5mm clearance ts.
Embodiment three: a kind of guide ring installation method comprising following steps:
(1) demifacet circumferentially opens up two mounting holes 8 under piston body 1, and the central angle of two mounting holes is 130 ° and left and right pair
Title opens up, and two 8 inside reams of mounting hole put down the disk of depth 3mm, for installing bolt；
(2) block 2, the V-shaped groove that block inboard side metalworking is 175 ° at angle β, block are installed respectively on two mounting holes 8
The angle γ of left and right sides is 10 °, and block 2 is coupled by screw 4, self-locking nut 5 and plain washer 6；
(3) arcuate guide ring 3 is installed in the arc mounting groove 7 that two blocks 2 are formed, 3 end face of arcuate guide ring and block it
Between there are 3mm clearance ts.
In the present invention, self-locking nut uses the U-NUT of import, is not necessarily to stop washer or other anti-loose structures, easy for installation.
Claims (10)
1. a kind of guide ring structure comprising piston body, which is characterized in that be equipped with arc at the pressure-bearing of the piston body lower end and lead
Xiang Huan, arcuate guide ring both ends are provided with the block for being installed on the piston body, the block and the arcuate guide ring
There are gaps between end face.
2. a kind of guide ring structure according to claim 1, which is characterized in that the central angle δ of the arcuate guide ring is
118°-119°。
3. a kind of guide ring structure according to claim 1, which is characterized in that two blocks be symmetrically arranged and
The central angle alpha for the arc mounting groove that medial surface is formed is 120 °.
4. a kind of guide ring structure according to claim 1, which is characterized in that the block is vee-block.
5. a kind of guide ring installation method, which is characterized in that itself the following steps are included:
(1) demifacet circumferentially opens up two mounting holes under piston body；
(2) block is installed respectively on two mounting holes；
(3) arcuate guide ring is installed in the arc mounting groove that two blocks are formed, is stayed between arcuate guide ring end face and block
There is gap.
6. it is further characterized by the central angle of two mounting holes is 125 ° -130 ° in step (1) and bilateral symmetry opens up.
7. a kind of guide ring installation method according to claim 5, which is characterized in that in step (1) in two mounting holes
Side ream puts down the disk of depth 2-3mm, for installing bolt.
8. a kind of guide ring installation method according to claim 5, which is characterized in that block inboard side gold in step (2)
It is processed into the V-shaped groove that angle β is 170 ° -175 °, the angle γ of block left and right sides is 5 ° -10 °.
9. a kind of guide ring installation method according to claim 5, which is characterized in that block passes through screw in step (2)
It is coupled with self-locking nut.
10. a kind of guide ring installation method according to claim 5, which is characterized in that arcuate guide ring end in step (3)
Clearance t between face and block is 2-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910463598.0A CN110131132A (en) | 2019-05-30 | 2019-05-30 | A kind of guide ring structure and its installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910463598.0A CN110131132A (en) | 2019-05-30 | 2019-05-30 | A kind of guide ring structure and its installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110131132A true CN110131132A (en) | 2019-08-16 |
Family
ID=67583137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910463598.0A Pending CN110131132A (en) | 2019-05-30 | 2019-05-30 | A kind of guide ring structure and its installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110131132A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10281066A (en) * | 1997-04-08 | 1998-10-20 | Kobe Steel Ltd | Piston of horizontal reciprocating compressor |
| CN104214074A (en) * | 2013-06-03 | 2014-12-17 | 株式会社日立产机系统 | Slide component and air compressor using same and analytical instrument |
| CN204984786U (en) * | 2015-10-08 | 2016-01-20 | 浙江大有机电科技有限公司 | Air compressor machine reciprocating piston |
| CN204984787U (en) * | 2015-10-08 | 2016-01-20 | 浙江大有机电科技有限公司 | Air compressor machine reciprocating piston |
| CN108953109A (en) * | 2018-07-06 | 2018-12-07 | 安徽思源三轻智能制造有限公司 | A kind of efficient air compressor piston |
| CN210195965U (en) * | 2019-05-30 | 2020-03-27 | 无锡压缩机股份有限公司 | Guide ring structure |
-
2019
- 2019-05-30 CN CN201910463598.0A patent/CN110131132A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10281066A (en) * | 1997-04-08 | 1998-10-20 | Kobe Steel Ltd | Piston of horizontal reciprocating compressor |
| CN104214074A (en) * | 2013-06-03 | 2014-12-17 | 株式会社日立产机系统 | Slide component and air compressor using same and analytical instrument |
| CN204984786U (en) * | 2015-10-08 | 2016-01-20 | 浙江大有机电科技有限公司 | Air compressor machine reciprocating piston |
| CN204984787U (en) * | 2015-10-08 | 2016-01-20 | 浙江大有机电科技有限公司 | Air compressor machine reciprocating piston |
| CN108953109A (en) * | 2018-07-06 | 2018-12-07 | 安徽思源三轻智能制造有限公司 | A kind of efficient air compressor piston |
| CN210195965U (en) * | 2019-05-30 | 2020-03-27 | 无锡压缩机股份有限公司 | Guide ring structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 214145 No. 199, xixie Road, Hongshan street, Xinwu District, Wuxi City, Jiangsu Province Applicant after: Shengang Wuxi Compressor Co.,Ltd. Address before: 214145 Hong Shan Photoelectric Industrial Park, Xin Wu District, Wuxi, Jiangsu (No. 199, tin Xie Road) Applicant before: WUXI COMPRESSOR Co.,Ltd. |
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| CB02 | Change of applicant information |