CN102278469B - Manufacturing method of combined heavy-duty prestressed oil cylinder split along bus bar - Google Patents
Manufacturing method of combined heavy-duty prestressed oil cylinder split along bus bar Download PDFInfo
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- CN102278469B CN102278469B CN201010197704.4A CN201010197704A CN102278469B CN 102278469 B CN102278469 B CN 102278469B CN 201010197704 A CN201010197704 A CN 201010197704A CN 102278469 B CN102278469 B CN 102278469B
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Abstract
The invention discloses a manufacturing method of a combined heavy-duty prestressed oil cylinder split along a bus bar. A processing method of the oil cylinder comprises the following steps of: performing forging, rough processing and semi-finishing on a steel ingot to obtain an inner layer barrel which is consistent with a requirement; processing a middle layer component; detachably and fixedly connecting the inner layer barrel with the middle layer component; performing finish machining on the outer diameter of the inner layer according to the inner diameter of the middle layer; splicing the middle layer component on the outer side of the inner layer (outer cylindrical surface); and winding and fastening the outer side of the middle layer with a steel wire. By adopting the combined heavy-duty prestressed oil cylinder, the tangential prestressing force of the barrel is enhanced, the axial bending of the barrel is reduced, and the barrel is prevented from being damaged by excessive bending stress. The barrel produced with the manufacturing method has short manufacturing cost and period, is safe and reliable, has long service life, and can be manufactured in medium and small machinery factories.
Description
Technical field
The present invention relates to a kind of heavy super-large diameter ultrahigh pressure vessel (oil cylinder) and manufacture method thereof, particularly a kind of manufacture method of the combined heavy type prestressing force oil cylinder along bus subdivision for the main work of heavy hydraulic press ultrahigh pressure.
Background technique
Heavy axisymmetric ultrahigh pressure vessel is widely used in all kinds of heavy hydraulic press, as oil hydraulic cylinder and the pressure cylinder of the hydraulic presses such as the heavy die forging of aviation, Nuclear piping heavy extruding, heavy open die forging and the hot and cold isostatic pressed ultrahigh pressure of heavy nuclear material (1500 ~ 4000 barometric pressure) hydraulic press, it is the critical component of heavy-duty machine industry.Can say do not have heavy axisymmetric ultrahigh pressure vessel, cylindrical shell and oil hydraulic cylinder (hereinafter referred to as cylindrical shell) just there is no above-mentioned heavy equipment.
Traditional cylindrical shell is nickel-chromium medium carbon alloy steel solid forging, needs heavy free forging hydraulic machine, through strict technique, comprises steel-making-forging-heat treatment and completes.This kind of cylindrical shell only China's minority Heavy Machines Plant can manufacture, and expensive, the cycle is grown, have a big risk, transport difficult.Along with the increase of heavy-duty machine parameter, the tonnage of oil hydraulic cylinder and cylindrical shell is increasing, single cylinder internal diameter reaches 3.5 meters, the tonnage producing pressure has reached 40,000 tons, isostatic pressed cylinder internal diameter reach 2 meters, certainly weigh 300 tons, its axial force can reach 60,000 tons, the cylindrical shell of parameter like this, the contradiction on its Design and manufacture is more outstanding.
Summary of the invention
In order to make up above deficiency, the invention provides a kind of manufacture method of the combined heavy type prestressing force oil cylinder along bus subdivision, use the heavy oil cylinder that this kind of manufacture method is produced, manufacture cost and cycle decline greatly, safe and reliable and long service life.
The present invention in order to the technological scheme solving its technical problem and adopt is: a kind of manufacture method of the combined heavy type prestressing force oil cylinder along bus subdivision, and it comprises the following steps:
Step one: the processing of internal layer: first steel ingot is forged into cylindrical shell blank, then its inside and outside footpath of roughing and height, then heat-treat, carry out the semi finishing of internal diameter and external diameter again, and internally, external diameter leaves machining allowance: the inside radius of internal layer core cylinder stays the surplus of 2-15mm, and outer radius stays 2-20mm surplus;
Step 2: the processing of each component in middle level: along the flat interface contacted with each other of bus subdivision to permissible accuracy between processing middle level each component;
Step 3: be removably fixed with by each for middle level component, then processes the inner cylindrical surface in middle level and the diameter of external cylindrical surface to the size required, measures inner cylindrical surface diameter value and the taper value in middle level;
Step 4: according to inner cylindrical surface diameter value and the taper value fine finishing internal layer core cylinder external diameter in middle level, and ensure that internal layer core cylinder external diameter has the magnitude of interference of 0.0 ~ 0.5mm for the component assemblying body inside radius in middle level;
Step 5: the component assemblying body taking middle level apart, its assembled (encirclement) is close on the core cylinder external cylindrical surface of internal layer, and to be fixed on the rotating disc attachment face of wind (or on carrying steel plate), above-mentioned means of fixation need ensure the assembled tubes in middle level and the core cylinder free shrink of internal layer and can not be tumbled by steel wire tension dragline;
Step 6: use winding steel wire to carry out pretension winding to the middle level being assembled in internal layer outer cylinder side and protected be wound around steel wire floor formation outer, thus forming overall cylindrical shell.
A kind of combined heavy type prestressing force oil cylinder along bus subdivision, comprise internal layer, middle level and skin: internal layer is overall cylinder core, middle level be by least two along bus subdivision and the component that axial side wall is bonded to each other form combined barrel (by component be combined into cylindrical shell be convenient to processing and assembling), middle level is sheathed on outside internal layer, middle level inwall laminating inner layer outer wall, skin is steel wire winding layer, and skin is sheathed on outside middle level, outer inwall laminating middle level outer wall.
As a further improvement on the present invention, each component in middle level is cast member, but not forging.
As a further improvement on the present invention, the component number in described middle level is between two to 20.
As a further improvement on the present invention, the component number in described middle level is four.
As a further improvement on the present invention, the material of internal layer core cylinder entirety is the alloy wrought steel (as 34CrNi3Mo) that toughness and intensity are all good, can ensure the sealing of cylindrical shell to high-pressure liquid medium like this, improves the life-span of slipper seal.
Advantageous Effects of the present invention is: the present invention creates huge radial external pressure pretightening force by cover wire winding structure, ensure that the assembly along bus subdivision forms the entire barrel that has sufficient intensity and rigidity, and greatly improve the tangential prestressing force (pressure stress) of this combined barrel; Under working inner pressure effect, the tangential stress of cylindrical shell is still negative value, namely in every case without tangential stress; This kind of tube structure can reduce the axial bending of cylindrical shell greatly, ensure that cylindrical shell can not be excessive and destroyed due to flexural stress, the cylindrical shell manufacture cost that this kind of manufacture method is produced and cycle decline greatly, safe and reliable, the life-span is long, and general middle-size and small-size enginerring works adopt this method all can manufacture.
Accompanying drawing explanation
Fig. 1 is radial section structural representation of the present invention;
Fig. 2 is that cover wire of the present invention is wound around schematic diagram.
Embodiment
Embodiment: a kind of manufacture method of the combined heavy type prestressing force oil cylinder along bus subdivision, it comprises the following steps:
Step one: the processing of internal layer 1: first steel ingot is forged into cylindrical shell blank, then its inside and outside footpath of roughing and height, then heat-treat, carry out the semi finishing of internal diameter and external diameter again, and internally, external diameter leaves machining allowance: the inside radius of internal layer core cylinder stays the surplus of 2 ~ 15mm, and outer radius stays 2 ~ 20mm surplus;
Step 2: the processing of each component in middle level 21: along the flat interface contacted with each other of bus subdivision to permissible accuracy between processing middle level each component 21;
Step 3: be removably fixed with by each for middle level component 21, then processes the inner cylindrical surface in middle level and the diameter of external cylindrical surface to the size required, measures inner cylindrical surface diameter value and the taper value in middle level;
Step 4: according to inner cylindrical surface diameter value and the taper value fine finishing internal layer core cylinder external diameter in middle level, and ensure that internal layer core cylinder external diameter has the magnitude of interference of 0.0 ~ 0.5mm for the component assemblying body inside radius in middle level;
Step 5: component 21 assemblying body taking middle level 2 apart, its assembled (encirclement) is close on the core cylinder external cylindrical surface of internal layer 1, and to be fixed on rotating disc 4 attachment face of wind (or on carrying steel plate), above-mentioned means of fixation need ensure the assembled tubes in middle level and the core cylinder free shrink of internal layer and can not be tumbled by steel wire tension dragline;
Step 6: use winding steel wire to carry out pretension winding to the middle level 2 being assembled in internal layer 1 outer cylinder side and be wound around steel wire floor protected to formation outer 3, thus forming overall cylindrical shell.
Along a combined heavy type prestressing force oil cylinder for bus subdivision, comprise internal layer 1, middle level 2 and outer 3; Internal layer 1 is overall cylinder core, middle level 2 for by least two along bus subdivision and the combined barrel (be combined into cylindrical shell by component and be convenient to processing and assembling) that forms of the component 21 that axial side wall is bonded to each other, middle level 2 is sheathed on outside internal layer 1, middle level 2 inwall laminating internal layer 1 outer wall, outer 3 is steel wire winding layer, outer 3 are sheathed on outside middle level 2, outer 3 inwall laminating middle level 2 outer walls.
The each component 21 in described middle level is cast member, but not forging.
Component 21 number in described middle level is between two to 20.
Component 21 number in described middle level is four.
The material of described internal layer 1 core cylinder entirety is the alloy wrought steel (as 34CrNi3Mo) that toughness and intensity are all good, can ensure the sealing of cylindrical shell to high-pressure liquid medium like this, improves the life-span of slipper seal.
Claims (5)
1., along a manufacture method for the combined heavy type prestressing force oil cylinder of bus subdivision, it is characterized in that: it comprises the following steps:
Step one: the processing of internal layer: first steel ingot is forged into cylindrical shell blank, then its inside and outside footpath of roughing and height, then heat-treat, carry out the semi finishing of internal diameter and external diameter again, and internally, external diameter leaves machining allowance: the inside radius of internal layer core cylinder stays the surplus of 2 ~ 15mm, and outer radius stays 2 ~ 20mm surplus;
Step 2: the processing of each component in middle level: along the flat interface contacted with each other of bus subdivision to permissible accuracy between processing middle level each component;
Step 3: be removably fixed with by each for middle level component, then processes the inner cylindrical surface in middle level and the diameter of external cylindrical surface to the size required, measures inner cylindrical surface diameter value and the taper value in middle level;
Step 4: according to inner cylindrical surface diameter value and the taper value fine finishing internal layer core cylinder external diameter in middle level, and ensure that internal layer core cylinder external diameter has the magnitude of interference of 0.0 ~ 0.5mm for the component assemblying body inside radius in middle level;
Step 5: the component assemblying body taking middle level apart, to be assembledly close to it on the core cylinder external cylindrical surface of internal layer, and to be fixed on rotating disc (4) attachment face of wind;
Step 6: use winding steel wire to carry out pretension winding to the middle level being assembled in internal layer outer cylinder side, and protected formation outer to be wound around steel wire floor, thus form overall cylindrical shell.
2. the manufacture method of a kind of combined heavy type prestressing force oil cylinder along bus subdivision as claimed in claim 1, is characterized in that: each component in middle level (21) is cast member.
3. the manufacture method of a kind of combined heavy type prestressing force oil cylinder along bus subdivision as claimed in claim 1, is characterized in that: component (21) number in described middle level is between two to 20.
4. the manufacture method of a kind of combined heavy type prestressing force oil cylinder along bus subdivision as claimed in claim 3, is characterized in that: component (21) number in described middle level is four.
5. the manufacture method of a kind of combined heavy type prestressing force oil cylinder along bus subdivision as claimed in claim 1, is characterized in that: the material of internal layer (1) core cylinder entirety is the alloy wrought steel that toughness and intensity are all good.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010197704.4A CN102278469B (en) | 2010-06-08 | 2010-06-08 | Manufacturing method of combined heavy-duty prestressed oil cylinder split along bus bar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010197704.4A CN102278469B (en) | 2010-06-08 | 2010-06-08 | Manufacturing method of combined heavy-duty prestressed oil cylinder split along bus bar |
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| Publication Number | Publication Date |
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| CN102278469A CN102278469A (en) | 2011-12-14 |
| CN102278469B true CN102278469B (en) | 2015-07-08 |
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| CN103363852B (en) * | 2012-04-10 | 2018-08-14 | 仲永红 | Multifunctional anti-explosion ball |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1201153A (en) * | 1966-09-26 | 1970-08-05 | Nat Res Dev | Improvements in or relating to high-pressure vessels |
| JP2009121628A (en) * | 2007-11-16 | 2009-06-04 | Kyushu Univ | Pressure-proof vessel of deep-ocean survey vehicle |
| CN201347922Y (en) * | 2008-12-16 | 2009-11-18 | 郑州人造金刚石及制品工程技术研究中心有限公司 | Extra-high pressure working cylinder |
| CN201687927U (en) * | 2010-06-08 | 2010-12-29 | 郭戈 | Combined heavy type pre-stress oil cylinder dividing along bus |
-
2010
- 2010-06-08 CN CN201010197704.4A patent/CN102278469B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1201153A (en) * | 1966-09-26 | 1970-08-05 | Nat Res Dev | Improvements in or relating to high-pressure vessels |
| JP2009121628A (en) * | 2007-11-16 | 2009-06-04 | Kyushu Univ | Pressure-proof vessel of deep-ocean survey vehicle |
| CN201347922Y (en) * | 2008-12-16 | 2009-11-18 | 郑州人造金刚石及制品工程技术研究中心有限公司 | Extra-high pressure working cylinder |
| CN201687927U (en) * | 2010-06-08 | 2010-12-29 | 郭戈 | Combined heavy type pre-stress oil cylinder dividing along bus |
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Free format text: FORMER OWNER: YAN YONGNIAN Effective date: 20121221 Owner name: KUNSHAN YONGNIAN ADVANCED MANUFACTURING TECHNOLOGY Free format text: FORMER OWNER: GUO GE Effective date: 20121221 |
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Effective date of registration: 20121221 Address after: 215300, building 1, Qinghua science park, No. 1666 Reed Road, Yushan Town, Kunshan, Jiangsu Applicant after: Kunshan Yongnian Advanced Manufacturing Technologies Co., Ltd. Address before: 100028 Beijing Chaoyang District City summer homes 6 Building 2 unit 1602 Applicant before: Guo Ge Applicant before: Yan Yongnian |
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