CN110280971A - A kind of cylinder sleeve liner separation method - Google Patents
A kind of cylinder sleeve liner separation method Download PDFInfo
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- CN110280971A CN110280971A CN201910489140.2A CN201910489140A CN110280971A CN 110280971 A CN110280971 A CN 110280971A CN 201910489140 A CN201910489140 A CN 201910489140A CN 110280971 A CN110280971 A CN 110280971A
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- Prior art keywords
- liner
- cylinder sleeve
- cylinder
- jacking block
- heating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of cylinder sleeve liner separation methods, include the following steps, the first step, cylinder jacket heating, cylinder sleeve is integrally put into intermediate-frequency heating furnace and is heated, second step, cylinder sleeve is turned, cylinder sleeve after heating is transferred to the station out of liner liftout attachment with rotating lifting, open hydraulic cylinder, liner is withstood from cylinder sleeve rear by the jacking block of hydraulic cylinder leading portion, to which cylinder sleeve be withstood on out on station, third step, liner is cooling, cold water is sprayed to cylinder sleeve liner from another mouth of cylinder sleeve with spray tube, 4th step, liner ejection, increase the pressure of jacking block, cylinder sleeve liner is ejected.It is shunk using being quickly cooled down after cylinder sleeve shell expanded by heating and cylinder sleeve liner expanded by heating, the interval for increasing cylinder sleeve shell and cylinder sleeve liner reduces working strength so that cylinder sleeve liner is easier to separate compared with prior art, reduces pollution, improves efficiency.
Description
Technical field
The invention belongs to petroleum machineries to remanufacture field, and in particular to a kind of cylinder sleeve liner separation method.
Background technique
The process flow that waste and old bi-metal liner remanufactures is: taking out the high chromium liner that wears in old cylinder sleeve → according to cylinder sleeve
Shell matches in the new liner of new liner → installation → lathe roughing cylinder sleeve entirety inner and outer surfaces → boring machine retrofit cylinder sleeve
Hole → stamp, spray painting, packaging.
But because cylinder sleeve shell is cast steel material, matched liner is that high chromium alloy material is cast, hardness: 58~
62HRC, Material Strength is very high, it is assembled on cylinder sleeve shell by way of interference, magnitude of interference: 0.20~0.35mm, dress
With compact.So bi-metal liner scraps liner and is difficult to take out.
Removing method common at present is " arc welding liner fluting pressure release extrusion method ".Although this method can finally make cylinder
Set liner smoothly takes out, and still, this method large labor intensity, pollution are big, and there are following deficiencies:
1, this method limitation is small.It is only suitable for150 or more bigbore cylinder sleeves, for150 or less small-bore cylinders
Set, since internal diameter is too small, soldering turret can not put in liner and carry out cutting operation, therefore not have extensive operability.
2, high rejection rate.Arc welding liner grooving method belongs to thermal cutting operation, and limited mass of slotting is in the behaviour of operator
Make level of skill, 2 years statistical result showeds: there are 27.6% arc welding fluting rejection rates.
3, work pollution is big.High current, long-time arc welding cut generated flue dust and arc light, seriously affect welder's
Health.
4, inefficiency.This operation ensemble average time is 50min/ or so, and timeliness is poor.
Therefore there is an urgent need to a kind of new liner removing methods.
Summary of the invention
It is good that the object of the present invention is to provide a kind of versatilities, and low energy consumption, high-efficient, pollutes small cylinder sleeve liner separation side
Method.
Goal of the invention of the invention is realized by following technological means, and a kind of cylinder sleeve liner separation method includes following
Step,
Cylinder sleeve is integrally put into intermediate-frequency heating furnace and heats by the first step, cylinder jacket heating,
Second step, cylinder sleeve are turned, and the cylinder sleeve after heating is transferred to the station that goes out of liner liftout attachment, unlatching with rotating lifting
The hydraulic cylinder of liner liftout attachment withstands liner from cylinder sleeve rear by the jacking block of hydraulic cylinder leading portion, so that cylinder sleeve be withstood on out
On station,
Third step, liner is cooling, and cold water is sprayed to cylinder sleeve liner from another mouth of cylinder sleeve with spray tube,
4th step, liner ejection, increases the pressure of jacking block, cylinder sleeve liner is ejected.
In the first step, Metallic cylinder is heated to 550-900 degree, Metallic cylinder is in red heat shape.
It is also logical after being withstood on out cylinder sleeve on station from cylinder sleeve rear by the jacking block of hydraulic cylinder leading portion in the second step
It crosses hydraulic cylinder and promotes jacking block, precharge is carried out to liner by jacking block.
Jacking block diameter used in described is less than the outer diameter of cylinder sleeve liner, and is greater than the internal diameter of cylinder sleeve liner.
The wiper block that is on one side also connected with several protrusions of the jacking block used in described close to cylinder sleeve.
In the second step, liner liftout attachment includes hydraulic cylinder, jacking block and work wall composition, is provided with circle on the wall that works
Hole, jacking block are connected to hydraulic cylinder front end, and the station that goes out that liner liftout attachment is transferred to rotating lifting is the cylinder after heating
Rotating lifting is applied, is transferred between the jacking block of liner liftout attachment and the work wall of liner liftout attachment, so that slinging to level
The cylinder sleeve of shape, front end withstand work wall and liner alignment circular hole, rear end liner alignment liner liftout attachment hydraulic cylinder and
Jacking block.
The beneficial effects of the present invention are: 1, versatility good, for the cylinder sleeve of different-diameter, it is only necessary to replace different sizes
Jacking block.
2, the liner and shell isolated remain intact, and will not damage the shape technology size of original part crude oil, complete working medium
It measures more excellent.
3, electrical welding operation is eliminated, process is more simpler than previous, and is not welded level by operator and is limited, and pollutes
Small, operator is safer, saves manually, and energy consumption reduces.
4, present invention separation liner was averaged the used time at 6-12 minutes, more efficient compared with prior art.
Specific embodiment
[embodiment 1]
A kind of cylinder sleeve liner separation method, includes the following steps,
Cylinder sleeve is integrally put into intermediate-frequency heating furnace and heats by the first step, cylinder jacket heating,
Second step, cylinder sleeve are turned, and the cylinder sleeve after heating is transferred to the station that goes out of liner liftout attachment, unlatching with rotating lifting
Hydraulic cylinder withstands liner from cylinder sleeve rear by the jacking block of hydraulic cylinder leading portion, so that cylinder sleeve is withstood on out on station,
Third step, liner is cooling, and cold water is sprayed to cylinder sleeve liner from another mouth of cylinder sleeve with spray tube,
4th step, liner ejection, increases the pressure of jacking block, cylinder sleeve liner is ejected.
In the first step, Metallic cylinder is heated to 550-900 degree, Metallic cylinder is in red heat shape.
It is also logical after being withstood on out cylinder sleeve on station from cylinder sleeve rear by the jacking block of hydraulic cylinder leading portion in the second step
It crosses hydraulic cylinder and promotes jacking block, precharge is carried out to liner by jacking block.
Jacking block diameter used in described is less than the outer diameter of cylinder sleeve liner, and is greater than the internal diameter of cylinder sleeve liner.
The wiper block that is on one side also connected with several protrusions of the jacking block used in described close to cylinder sleeve.
The intermediate-frequency heating furnace is existing equipment, and cylinder sleeve shell is integrally heated to rubescent by the first step, and Metallic cylinder exists
It is red to start obfuscation at 550 degree, whitens at 900 degree and is filled close to fusing, in practical operation, by cylinder jacket heating to 550-900 degree
, i.e., cylinder sleeve is rubescent but when not bleaching.Second step, the cylinder sleeve that will warm up red heat shape are transferred to liner ejection dress with rotating lifting
That sets goes out station, opens the hydraulic cylinder of liner liftout attachment, withstands liner from cylinder sleeve rear by the jacking block of hydraulic cylinder leading portion, from
And withstand on out cylinder sleeve on station,
In second step, the liner liftout attachment includes hydraulic cylinder, jacking block and work wall composition, is provided with circle on the wall that works
Hole, jacking block are connected to hydraulic cylinder front end, and the station that goes out that liner liftout attachment is transferred to rotating lifting is the cylinder after heating
Rotating lifting is applied, is transferred between the jacking block of liner liftout attachment and the work wall of liner liftout attachment, so that slinging to level
The cylinder sleeve of shape, front end withstand work wall and liner alignment circular hole, rear end liner alignment liner liftout attachment hydraulic cylinder and
Jacking block.
Liner liftout attachment is also existing equipment, is mainly made of hydraulic cylinder, jacking block and work wall, is provided on the wall that works
The size of circular hole, circular hole is less than the internal diameter of cylinder sleeve shell, but is greater than the outer diameter of cylinder sleeve liner.Workflow substantially is to incite somebody to action
Cylinder sleeve rotating lifting after heating is transferred between the jacking block of liner liftout attachment and the work wall of liner liftout attachment, so that
It slings to horizontal cylinder sleeve, work wall and liner alignment circular hole are withstood in front end, and the liner of rear end is to liner liftout attachment
Quasi- hydraulic cylinder and jacking block, what at this moment cylinder sleeve had then arrived liner liftout attachment goes out station, later the hydraulic cylinder of liner liftout attachment
Jacking block withstands the rear end of cylinder sleeve liner from rear, and cylinder sleeve case nose is withstood on the work wall of liner liftout attachment, liner pair
Director circle hole, at this moment cylinder sleeve is horizontal, and then the hydraulic cylinder of liner liftout attachment continues to contribute forward, work of the jacking block in hydraulic cylinder
Continue finally to push out liner from circular hole toward being pushed forward with lower, and shell remains in work wall close to the side of hydraulic cylinder.
In actual operation, will warm up red heat shape cylinder sleeve be transferred to rotating lifting it is horizontal, and be located at jacking block and work
Make between wall, then Hydraulic Cylinder jacking block withstands cylinder sleeve liner from rear, guarantees that cylinder sleeve case nose is withstood on work wall.
And in the second step, after cylinder sleeve is withstood on out on station from cylinder sleeve rear by the jacking block of hydraulic cylinder leading portion,
Jacking block is also promoted by hydraulic cylinder, precharge is carried out to liner by jacking block.After cylinder sleeve is withstood on work wall, hydraulic cylinder is light forward
It pushes away, to guarantee that cylinder sleeve is withstood on work wall.
Third step, liner is cooling, cold water is sprayed to cylinder sleeve liner from another mouth of cylinder sleeve with spray tube, cylinder sleeve is pushed up
After on work wall, work wall side is cylinder sleeve and hydraulic cylinder, and the other side is spray tube, and spray tube is from circular hole into cylinder sleeve liner
A large amount of cold water narration spray cylinder sleeve liners are sprayed, so that the rapid cooling meat of cylinder sleeve liner.
Because cylinder sleeve liner, in cylinder sleeve shell, cylinder sleeve rear end is closed by jacking block again, only one outlet of entire cylinder sleeve is cold
Water is sprayed onto cylinder sleeve liner from spray tube, and flows out from the front end of cylinder sleeve liner, cylinder sleeve shell will not be touched, so in cylinder sleeve
When gallbladder is quickly cooled down contraction, the variation of shell is little.
4th step, liner ejection, increases the pressure of jacking block, cylinder sleeve liner is ejected.
Hydraulic cylinder increases the thrust to jacking block, and cylinder sleeve shell is because heating expands, and cylinder sleeve liner is because of the spray of a large amount of cold water
It shrinks, the interval between cylinder sleeve shell and cylinder sleeve liner becomes larger, and the jacking block for withstanding cylinder sleeve liner continues to being pushed forward, so that it may cylinder
Set liner is ejected from cylinder sleeve shell.Realize the separation of cylinder sleeve liner and cylinder sleeve shell.
The integrality that this method is suitable for various specifications slush pump bi-metal liner liner takes out operation, is also suitble to other double
The isolation technics of metal axle sleeve base part is the repairing and reusing of waste and old bushing class, has started good economic benefit and operation
Benefit.
According to the difference of cylinder sleeve wall thickness, overall process was at 6~12 minutes.Arc welding fluting method originally, fluting general 30
~40 minutes/only, it is ejected again with extrusion method later, i.e. the time consumed by transfer plus ejection, arc welding fluting method adds extrusion method
About 50 minutes whole working hours/only.By comparison, work efficiency promotes 4~8 times.
This method only generates a small amount of electricity charge simultaneously, and heating time is 3~8 minutes/, the electricity charge consumed by single operation
Are as follows: 120KW × 0.1h × 1.5 yuan/KWh=18 member/only, previous arc welding fluting overall expenses is about 110 yuan/, passes through expense
With comparison, energy consumption declines about 6 times.
Claims (6)
1. a kind of cylinder sleeve liner separation method, which comprises the following steps:
Cylinder sleeve is integrally put into intermediate-frequency heating furnace and heats by the first step, cylinder jacket heating；
Second step, cylinder sleeve are turned, and the cylinder sleeve after heating is transferred to the station that goes out of liner liftout attachment, unlatching liner with rotating lifting
The hydraulic cylinder of liftout attachment withstands liner from cylinder sleeve rear by the jacking block of hydraulic cylinder leading portion, so that cylinder sleeve is withstood on out station
On；
Third step, liner is cooling, and cold water is sprayed to cylinder sleeve liner from another mouth of cylinder sleeve with spray tube；
4th step, liner ejection, increases the pressure of jacking block, cylinder sleeve liner is ejected.
2. a kind of cylinder sleeve liner separation method according to claim 1, it is characterised in that: in the first step, by metal
For cylinder jacket heating to 550-900 degree, Metallic cylinder is in red heat shape.
3. a kind of cylinder sleeve liner separation method according to claim 1, it is characterised in that: in the second step, pass through liquid
After the jacking block of cylinder pressure leading portion withstands on out cylinder sleeve on station from cylinder sleeve rear, jacking block is also promoted by hydraulic cylinder, it is internal by jacking block
Gallbladder carries out precharge.
4. a kind of cylinder sleeve liner separation method according to claim 1, it is characterised in that: jacking block diameter used in described
Less than the outer diameter of cylinder sleeve liner, and it is greater than the internal diameter of cylinder sleeve liner.
5. a kind of cylinder sleeve liner separation method according to claim 1, it is characterised in that: jacking block used in described is close
The wiper block for being also connected with several protrusions on one side of cylinder sleeve.
6. a kind of cylinder sleeve liner separation method according to claim 1, it is characterised in that: in the second step, liner top
Device includes hydraulic cylinder, jacking block and work wall composition out, is provided with circular hole on the wall that works, jacking block is connected to hydraulic cylinder front end, described
The station that goes out that liner liftout attachment is transferred to rotating lifting is the cylinder sleeve rotating lifting after heating, and is transferred to liner liftout attachment
Jacking block and liner liftout attachment work wall between so that sling to horizontal cylinder sleeve, work wall and interior is withstood in front end
Gallbladder is directed at circular hole, the hydraulic cylinder and jacking block of the liner alignment liner liftout attachment of rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489140.2A CN110280971A (en) | 2019-06-06 | 2019-06-06 | A kind of cylinder sleeve liner separation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910489140.2A CN110280971A (en) | 2019-06-06 | 2019-06-06 | A kind of cylinder sleeve liner separation method |
Publications (1)
| Publication Number | Publication Date |
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| CN110280971A true CN110280971A (en) | 2019-09-27 |
Family
ID=68003440
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| CN201910489140.2A Pending CN110280971A (en) | 2019-06-06 | 2019-06-06 | A kind of cylinder sleeve liner separation method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001179544A (en) * | 1999-12-20 | 2001-07-03 | Cgk Kk | Cutter tool shrinkage fitting device with electromagnetic induction heating and tool holding part for blade tool holder |
| CN102343498A (en) * | 2011-08-31 | 2012-02-08 | 太原重工股份有限公司 | Device and method for dismantling liner of extruding cylinder |
| CN103203585A (en) * | 2013-03-28 | 2013-07-17 | 四川长虹电器股份有限公司 | Damage-free compressor rotor heat jacket assembly disassembling device |
| CN105108448A (en) * | 2015-09-29 | 2015-12-02 | 莱芜钢铁集团有限公司 | Method for disassembling large part pin shaft connection |
| CN207771731U (en) * | 2017-12-21 | 2018-08-28 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of bimetallic mud slurry pump cylinder jacket inner sleeve withdrawing device |
-
2019
- 2019-06-06 CN CN201910489140.2A patent/CN110280971A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001179544A (en) * | 1999-12-20 | 2001-07-03 | Cgk Kk | Cutter tool shrinkage fitting device with electromagnetic induction heating and tool holding part for blade tool holder |
| CN102343498A (en) * | 2011-08-31 | 2012-02-08 | 太原重工股份有限公司 | Device and method for dismantling liner of extruding cylinder |
| CN103203585A (en) * | 2013-03-28 | 2013-07-17 | 四川长虹电器股份有限公司 | Damage-free compressor rotor heat jacket assembly disassembling device |
| CN105108448A (en) * | 2015-09-29 | 2015-12-02 | 莱芜钢铁集团有限公司 | Method for disassembling large part pin shaft connection |
| CN207771731U (en) * | 2017-12-21 | 2018-08-28 | 中国石油集团川庆钻探工程有限公司长庆钻井总公司 | A kind of bimetallic mud slurry pump cylinder jacket inner sleeve withdrawing device |
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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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201027 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: CNPC Chuanqing Drilling Engineering Co.,Ltd. Address before: Weiyang road 710018 Shaanxi city of Xi'an province Changqing No. 151 building room 1902 Applicant before: CNPC CHUANQING DRILLING ENGINEERING CO., LTD. CHANGQING WELL DRILLING GENERAL Co. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190927 |