CN203076799U - New structure of cylinder body mounting flange with boss excircle welded on cylinder barrel - Google Patents
New structure of cylinder body mounting flange with boss excircle welded on cylinder barrel Download PDFInfo
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- CN203076799U CN203076799U CN 201320103250 CN201320103250U CN203076799U CN 203076799 U CN203076799 U CN 203076799U CN 201320103250 CN201320103250 CN 201320103250 CN 201320103250 U CN201320103250 U CN 201320103250U CN 203076799 U CN203076799 U CN 203076799U
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- flange
- cylinder barrel
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Abstract
The utility model discloses a new structure of a cylinder body mounting flange with a boss excircle welded on a cylinder barrel through. The new structure comprises the following steps: thickening the thickness size of a flange blank, firstly processing the flange into a flange disc with a boss at one end, wherein the inner bore size of the flange disc is in transition fit with the outer diameter size of the cylinder barrel, chamfering the mounting surface of the inner bore close to the flange; in welding, firstly pressing the flange disc on the cylinder barrel in a way that the end parts of the flange disc and the cylinder barrel are flush with each other, and then welding the boss end of the flange to the excircle circumference of the cylinder barrel, and welding along the chamfer of the flange inner bore on the flange mounting surface. The welding of the flange and the cylinder barrel is not fully concentrated on the connection thickness size of the flange, and focuses on the welding between the cylindrical end surface with one end being greater than the flange connection thickness size and the outer diameter of the cylinder barrel; the structure disclosed by the utility model is combined by the flange 1 having a processing boss at one end and the cylinder barrel body 2, and is characterized in that the flange 1 is provided with a boss with the inner bore size matched with the outer diameter size of the barrel cylinder body 2.
Description
One, technical field:
The present invention relates to the new construction of a kind of hydraulic jack cylinder body mounting flange and cylinder barrel welding.
Two, background technology:
In the process of human industrial civilization, hydraulic drive and control system have obtained using widely in the transmission of all kinds of mechanized equipments and control.
In the technology of existing hydraulic drive 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 drive 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 hydraulic technique towards high accuracy, high pressure and high-speed cruising 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, and the welding manner of itself and cylinder barrel also is that the fillet welding of suit cylindrical adds the downhand welding of installation end surface chamfer mostly.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 gauge 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,--technical process of welding end surface adpting flange--stress relieving by annealing---reprocessing is oversize, is difficult to satisfy actual demand in former the sort of blanking.Unfavorable for the productivity ratio 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 construction and process low, simple and reliable, that can reduce hydraulic jack mounting flange welding deformation effectively.
A kind of cylinder body mounting flange of the present invention is the gauge thickening with flange blank with the new construction of boss cylindrical and cylinder barrel welding, earlier flange is processed into the ring flange of one one end band boss, and outside dimension of hole dimension and cylinder barrel is an interference fits in it; Also fallen an angle at the endoporus of flange by the installed surface of flange, earlier ring flange is fitted on the cylinder barrel during welding, and make their ends concordant, along the cylindrical circumference welding of flange boss end and cylinder barrel, the chamfering circle along flange installed surface flange endoporus welds again then.
The welding of flange and cylinder barrel just is not to concentrate on entirely in the gauge that flange is connected like this, makes an end at the cylinder end face and the welding of cylinder barrel external diameter that connect gauge greater than flange, and an end is justified along the chamfering of flange installed surface flange endoporus and welded; This structure makes weld seam needn't bear requirement of strength, and only need bear fixing function, and is so the comparable original weld seam of its size should be born requirement of strength, little a lot of when bearing fixing function again.
Structure of the present invention has flange 1 and the cylinder barrel 2 of processing boss by an end and combines; It is characterized in that: have the boss that an interior hole dimension cooperates with cylinder barrel 2 blank outside dimensions through processing on the flange 1, earlier flange 1 is contained on the cylinder barrel 2 during welding, and make their ends concordant, along the cylindrical circumference welding of flange 1 boss end and cylinder barrel 2, the chamfering circle along flange installed surface flange endoporus welds again.
Weld seam of the present invention is not to concentrate on entirely in the gauge of flange connection, and bear main welding by the end and the cylinder barrel of flange boss, can produce the influence that inequilateral is out of shape after having reduced the welding of rectangle flange so on the one hand, on the other hand, weld seam is not at the corner root of flange and cylinder barrel, and need not to bear bending and the distorting stress that transverse load produces, weld seam can suitably reduce.
The welding of flange 1 endoporus of the present invention and cylinder barrel 2 cylindricals can be adopted laser weld, more helps reducing welding deformation, directly applies to the cylinder barrel that processes and the welding sequence of flange.
Four, description of drawings:
Accompanying drawing 1 is a structure chart of the present invention.
Five, the specific embodiment:
The specific embodiment of the present invention is: with the gauge thickening of flange 1 blank, earlier flange 1 is processed into the ring flange of one one end band boss, outside dimension of hole dimension and cylinder barrel 2 is an interference fits in it; Also fallen an angle at the endoporus of flange 1 by the installed surface of flange, earlier ring flange is fitted on the cylinder barrel 2 during welding, and make their ends concordant, along the cylindrical circumference welding of flange 1 boss end and cylinder barrel 2, the chamfering circle along flange installed surface flange endoporus welds again then.The welding of flange 1 and cylinder barrel 2 just is not to concentrate on entirely in the gauge that flange is connected like this, makes an end connects gauge greater than flange the cylinder end face and the welding of cylinder barrel external diameter into, and an end is justified along the chamfering of flange installed surface flange endoporus and welded.
Claims (1)
1. a cylinder body mounting flange is with the new construction of boss cylindrical and cylinder barrel welding, and its structure has flange (1) and the cylinder barrel (2) of processing boss by an end and combines; It is characterized in that: flange (1) is gone up and is had the boss that an interior hole dimension cooperates with cylinder barrel (2) blank outside dimension through processing, earlier flange (1) is contained on the cylinder barrel (2) during welding, and make their ends concordant, along the cylindrical circumference welding of flange (1) boss end and cylinder barrel (2), the chamfering circle along flange installed surface flange endoporus welds again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320103250 CN203076799U (en) | 2013-03-07 | 2013-03-07 | New structure of cylinder body mounting flange with boss excircle welded on cylinder barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320103250 CN203076799U (en) | 2013-03-07 | 2013-03-07 | New structure of cylinder body mounting flange with boss excircle welded on cylinder barrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203076799U true CN203076799U (en) | 2013-07-24 |
Family
ID=48822675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320103250 Expired - Fee Related CN203076799U (en) | 2013-03-07 | 2013-03-07 | New structure of cylinder body mounting flange with boss excircle welded on cylinder barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203076799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121237A (en) * | 2014-07-25 | 2014-10-29 | 中国重型机械研究院股份公司 | Split type steam ejection vacuum pump |
-
2013
- 2013-03-07 CN CN 201320103250 patent/CN203076799U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121237A (en) * | 2014-07-25 | 2014-10-29 | 中国重型机械研究院股份公司 | Split type steam ejection vacuum pump |
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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: 20130724 Termination date: 20140307 |