CN203230654U - Novel structure for reducing welding deformation of barrel and installation flange by adding bushing - Google Patents
Novel structure for reducing welding deformation of barrel and installation flange by adding bushing Download PDFInfo
- Publication number
- CN203230654U CN203230654U CN 201320103246 CN201320103246U CN203230654U CN 203230654 U CN203230654 U CN 203230654U CN 201320103246 CN201320103246 CN 201320103246 CN 201320103246 U CN201320103246 U CN 201320103246U CN 203230654 U CN203230654 U CN 203230654U
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- flange
- cylinder barrel
- bushing
- barrel
- welded
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Abstract
Disclosed is a novel structure for reducing welding deformation of a barrel and an installation flange by adding a bushing. The barrel is machined firstly, the flange is unchanged, the bushing with the size in transition fit with the size of the inner diameter of the barrel is additionally machined, the length of the bushing can be slightly larger than the thickness of the flange, and the external circle close to the mounting plane end is chamfered. Before the flange is welded with the cylinder barrel, the bushing is pressed in the cylinder barrel and welded, then, the flange is sleeved, the right end face of the flange is welded with the external circle of the cylinder barrel, and the chamfer of the cylinder barrel is welded with the mounting plane of the flange, so that the bushing in the cylinder barrel plays roles in strengthening and supporting the cylinder barrel and compensates deformation rigidity of the narrow edge of the flange, deformation after the cylinder barrel and the flange are welded is much smaller, too large deformation of the short edge of the flange due to different length and width dimensions can be prevented, and follow-up deformation is eliminated basically.
Description
One, technical field:
The present invention relates to a kind of new structure that lining reduces cylindrical shell and mounting flange welding deformation that adds.
Two, background technique:
In the process of human industrial civilization, hydraulic transmission and control system have obtained using widely in the transmission of all kinds of mechanized equipments and control.
In the technology of existing hydraulic transmission and control, hydraulic jack is exactly at present most widely used a kind of in the executive component.All be one of its indispensable element in each hydraulic transmission and control system or with hydraulic jack in the hydraulicdriven equipment almost.Hydraulic jack plays an important role in the development of the mankind's mechanized equipment.
Along with hydraulics towards highi degree of accuracy, high pressure and high speed operation direction develop, the welding deformation of hydraulic jack end face flange becomes the difficult problem that people must capture.
In the prior art, because the restriction of main machine structure, those are that the flange of the hydraulic jack of location and installation face can only be rectangular with the end flange, the welding manner of itself and cylinder barrel also is the cylindrical that flange is sleeved on cylinder barrel mostly, adds the downhand welding of mounting end surface chamfer in flange bottom surface and the weldering of cylinder barrel cylindrical angle of rest (repose).The weld seam of this Type of Welding will be born whole load of oil cylinder, and the having relatively high expectations of butt welded seam is so people must satisfy the actual demand of using with bigger weld seam.Its two weld seams all concentrate in the thickness size of flange, and the consequence of bringing is exactly that welding stress is big, are out of shape morely, have seriously influenced the quality of oil cylinder.
In addition, along with the China market end in economic high speed expansion epoch, the hydraulic jack manufacturer is in oil cylinder production and management, and small lot, many kinds and delivery date lack is becoming normality.In the cylinder barrel production process of hydraulic jack,--manufacturing process of welding end surface adpting flange--stress relieving by annealing---reprocessing is oversize, is difficult to satisfy actual demand in former blanking.Unfavorable for the productivity that improves cylinder barrel simultaneously.They are badly in need of finding a kind of new process that reduces hydraulic jack end face adpting flange welding deformation.
Three, summary of the invention:
Purpose of the present invention is exactly to develop a kind of cost new structure low, simple and reliable, that can reduce hydraulic jack mounting flange welding deformation effectively.
A kind of new structure that lining reduces cylindrical shell and mounting flange welding deformation that adds of the present invention, be to process cylindrical shell after in original technology, the weldering of the endoporus suit bull nose of cylinder barrel and flange being added the downhand welding of mounting end surface chamfer, change into: can process cylindrical shell earlier, flange is constant, other processes one and is of a size of the lining of transition fit size with internal diameter of cylinder, its length can be longer than the flange thickness size slightly, and it is by the outer rounded corner of mounting plane end.Before flange and the cylinder barrel welding, elder generation is pressed into cylinder barrel with lining and welds, and overlaps upper flange then, and the right side of flange and the cylindrical of cylinder barrel are welded, and the outer rounded corner of cylinder barrel and the mounting plane of flange is welded.
Lining in the cylinder barrel has played reinforcement and supporting effect to cylinder barrel like this, compensated the deformation rigidity on the narrow limit of flange, distortion after cylinder barrel and the flange welding also can be little a lot, can prevent because the different minor face distortion that cause of length and width size of flange are too big, and eliminate follow-up distortion basically.
Structure of the present invention is combined by flange 1, cylinder barrel 2 and lining 3.It is characterized in that: size has interference lining 3 to be pressed into earlier in the cylinder barrel 2 slightly, and their end face is welded, and flange 1 and cylinder barrel 2 covers is installed again, and has welded both end faces of flange 1 and cylinder barrel 2 then.
Lining in the cylinder barrel of the present invention has played reinforcement and supporting effect to cylinder barrel, compensated the deformation rigidity on the narrow limit of flange, distortion after cylinder barrel and the flange welding also can be little a lot, can prevent because the different minor face distortion that cause of length and width size of flange are too big, and eliminate follow-up distortion basically.The present invention can also add the form of external bushing the welding part of cylinder barrel and flange is strengthened, to reduce the welding deformation at this position.
Four, description of drawings:
Accompanying drawing 1 is structural drawing of the present invention.
Five, embodiment:
The specific embodiment of the present invention is: processing one is the lining 3 of transition fit size with cylinder barrel 2 internal diameter sizes, and its length can be longer than flange 1 thickness size slightly and be added the distance between the toes of a weld size, and it is by the outer rounded corner of mounting plane end.Before flange 1 welded with cylinder barrel 2, elder generation was pressed into cylinder barrel 2 with lining 3 and welds, and overlaps upper flange 1 then, and the right side of flange 1 and the cylindrical of cylinder barrel 2 are welded, and the outer rounded corner of cylinder barrel 2 and the mounting plane of flange 1 is welded.
Claims (1)
1. one kind adds the new structure that lining reduces cylindrical shell and mounting flange welding deformation, and its structure is combined by flange (1), cylinder barrel (2) and lining (3), it is characterized in that: the internal diameter of the external diameter of lining (3) and cylinder barrel (2) is transition fit; The left end external diameter of lining (3) has the welding slope angle, and the interior external diameter of the left end endoporus of flange (1) and cylinder barrel (2) end face all has the welding slope angle; The structural type of postwelding is that lining (3) is welded in the hole of cylinder barrel (2), and flange (1) is welded on the cylindrical of cylinder barrel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320103246 CN203230654U (en) | 2013-03-07 | 2013-03-07 | Novel structure for reducing welding deformation of barrel and installation flange by adding bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320103246 CN203230654U (en) | 2013-03-07 | 2013-03-07 | Novel structure for reducing welding deformation of barrel and installation flange by adding bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203230654U true CN203230654U (en) | 2013-10-09 |
Family
ID=49286782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320103246 Expired - Fee Related CN203230654U (en) | 2013-03-07 | 2013-03-07 | Novel structure for reducing welding deformation of barrel and installation flange by adding bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203230654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266718A (en) * | 2021-04-01 | 2021-08-17 | 常州市武进第二法兰锻造有限公司 | Butt welding sealing flange and manufacturing process thereof |
-
2013
- 2013-03-07 CN CN 201320103246 patent/CN203230654U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266718A (en) * | 2021-04-01 | 2021-08-17 | 常州市武进第二法兰锻造有限公司 | Butt welding sealing flange and manufacturing process thereof |
| CN113266718B (en) * | 2021-04-01 | 2022-03-22 | 常州市武进第二法兰锻造有限公司 | Butt welding sealing flange and manufacturing process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20140307 |