CN105276315A - Double-O-shaped-ring steel pipe and Ban jo combined piece and machining process thereof - Google Patents
Double-O-shaped-ring steel pipe and Ban jo combined piece and machining process thereof Download PDFInfo
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- CN105276315A CN105276315A CN201510007010.2A CN201510007010A CN105276315A CN 105276315 A CN105276315 A CN 105276315A CN 201510007010 A CN201510007010 A CN 201510007010A CN 105276315 A CN105276315 A CN 105276315A
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- type joint
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Abstract
The invention discloses a double-O-shaped-ring steel pipe and Ban jo combined piece and a machining process thereof. The combined piece comprises a steel pipe and a Ban jo. The pipe end of the steel pipe is provided with annular trenches. One side of each annular trench is provided with an annular protrusion. The inner wall of a medium conveying channel of the Ban jo is provided with a first stepped platform and a second stepped platform. The inner diameter of the second stepped platform is larger than that of the first stepped platform. The second stepped platform is located on the outer side of the first stepped platform. The second stepped platform forms an annular concave opening. The pipe end is located in the first stepped platform of the Ban jo. O-shaped rings are arranged in the annular trenches. The annular protrusions are located in the second stepped platform. The steel pipe is movably connected with the Ban jo through the annular protrusions and the annular trenches in a riveted manner. The double-O-shaped-ring steel pipe and Ban jo combined piece has the beneficial effects of being compact in structure and high in sealing reliability. The riveted Ban jo can have damping rotation and can be arranged at a corresponding hole position of an engine in a fit manner, consumed hoses can be reduced, cost can be lowered, the machining process is simple, and assembling is convenient.
Description
Technical field
The present invention relates to a kind of two O type circle steel pipe and qin type joint component and processing technology thereof.
Background technique
The oil pipe that motor car engine uses and water pipe often use a kind of qin type joint (Banjo).General this kind of weld, on the steel pipe of brake forming, is pressed together on position, motor corresponding hole with hollow bolt, completes the function of medium transmission.Erection stress is often had to occur if all use qin type joint to connect at steel pipe two ends.For stage casing easy for installation commonly used hose (rubber hose or PTFE tube), utilize the flexibility of flexible pipe, allow qin type joint be fitted on position, motor hole, make assembling more convenient.But flexible nonmetallic tubing high and low temperature resistance is limited, when particularly peripheral temperature is higher, sometimes also must add that collet is protected to flexible pipe, complex structure, cost improve.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of two O type circle steel pipe and qin type joint component and processing technology thereof are provided.
The present invention is achieved by following technical proposals:
A kind of two O type circle steel pipe and qin type joint component, comprise steel pipe, qin type joint;
The pipe end outer wall of described steel pipe is provided with at least two annular grooves, and is provided with annular protrusion in the side of described annular groove in the middle part of described steel pipe;
The media transport path inwall of described qin type joint is provided with the first ladder platform coaxial with media transport path and second-order halfpace, described second-order halfpace internal diameter is greater than described first ladder platform, described second-order halfpace is positioned at outside described first ladder platform, and described second-order halfpace edge is provided with in-flanges formation annular notch;
The pipe end of described steel pipe is arranged in the first ladder platform of described qin type joint, and is respectively equipped with O type circle in the described annular groove of described steel pipe; The annular protrusion of described steel pipe is arranged in the annular notch of described qin type joint, is movable riveted by described annular protrusion and described annular notch between described steel pipe and described qin type joint.
Preferably, the width of described annular protrusion is slightly less than the width of described annular notch.
Preferably, described steel pipe is the Low Carbon Steel Pipe that specific elongation is not less than 35%.
Preferably, described steel pipe is DC01 welded tube or SPHD welded tube.
Preferably, described steel pipe is No. 08 drawn tube or No. 10 drawn tubes.
Preferably, described O type circle is made up of fluorine rubber, ethylene propylene diene rubber, hydrogenated nitrile-butadiene rubber, acrylate rubber or silicone rubber.
Preferably, described pair of O type circle steel pipe and qin type joint member surface are provided with zn-ni alloy deposits or zn-fe alloy coating.
A kind of two O type circle steel pipe and qin type joint component processing technology, comprise the following steps:
Steel pipe is processed:
Steel pipe carries out annealing or normalized treatment;
The pipe end of steel pipe carries out expander, makes pipe end internal diameter be greater than pipe diameter;
The pipe end of steel pipe carries out upsetting muscle, makes pipe end form the 3rd ladder platform, and forms annular protrusion in the middle part of the 3rd ladder platform and steel pipe;
To the 3rd ladder platform spinning process, the 3rd ladder platform is made to form at least two annular grooves;
Qin type joint is processed:
The first ladder platform and second-order halfpace is milled out at the media transport path inwall of qin type joint with milling cutter, media transport path, the first ladder platform and second-order halfpace are coaxial, second-order halfpace internal diameter is greater than the first ladder platform, and described second-order halfpace is positioned at outside described first ladder platform;
Component is processed:
The built-in O type circle of difference in annular groove;
Pipe end inserts in the media transport path of qin type joint, and steel pipe is connected with qin type joint sealing, and annular protrusion is arranged in second-order halfpace;
To the spinning process of second-order halfpace edge, making second-order halfpace edge be inverted to form annular notch, is movable riveted by annular protrusion and annular notch between steel pipe and qin type joint, forms finished parts.
Preferably, described finished parts electroplating of Zn-Ni alloy onto surface or zinc-iron alloy form coating.
Preferably, passivation is carried out to described coating.
Provided by the invention pair of O type circle steel pipe and qin type joint component have compact structure, advantage that sealing reliability is strong, after riveted, qin type joint can have damping rotary, can very relevantly be arranged in motor corresponding hole site, flexible pipe capable of reducing using, to reduce costs, processing technology is simple, and is convenient to assembling.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a application's part, does not form inappropriate limitation of the present invention, in the accompanying drawings:
Fig. 1 is embodiment of the present invention structural representation;
Fig. 2 a ~ Fig. 2 c is embodiment of the present invention steel pipe machining sketch chart;
Fig. 3 a ~ Fig. 3 b is embodiment of the present invention qin type joint machining sketch chart.
Embodiment
Describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Embodiment:
As shown in Fig. 1 ~ Fig. 3, a kind of two O type circle steel pipe and qin type joint component, comprise steel pipe 1, qin type joint 2; The pipe end outer wall of described steel pipe 1 is provided with at least two annular grooves 11, and in the present embodiment, annular groove 11 is two, and is provided with annular protrusion 12 in the side of described annular groove 11 in the middle part of described steel pipe 1; The media transport path inwall of described qin type joint 2 is provided with the first ladder platform 21 coaxial with media transport path and second-order halfpace 22, described second-order halfpace 22 internal diameter is greater than described first ladder platform 21, described second-order halfpace 22 is positioned at outside described first ladder platform 21, and described second-order halfpace 22 edge is provided with in-flanges formation annular notch 23; The pipe end of described steel pipe 1 is arranged in the first ladder platform 21 of described qin type joint 2, and is respectively equipped with O type circle 3 in the described annular groove 11 of described steel pipe 1; The annular protrusion 12 of described steel pipe 1 is arranged in the annular notch 23 of described qin type joint 2, between described steel pipe 1 and described qin type joint 2 by described annular protrusion 12 and described annular notch 23 in movable riveted, after riveted, qin type joint 2 can have damping rotary.
In the present embodiment scheme, the width of described annular protrusion 12 is slightly less than the width of described annular notch 23, and qin type joint 2, axially slightly moving, makes it to fit easily with pilot hole position and plane on motor.Reduce erection stress, that guarantees when main frame assembles is closely sealed.
As the part preferred version of the present embodiment scheme, described steel pipe 1 is not less than the Low Carbon Steel Pipe 1 of 35% for specific elongation.
As the part preferred version of the present embodiment scheme, described steel pipe 1 is DC01 welded tube 1 or SPHD welded tube.
As the part preferred version of the present embodiment scheme, described steel pipe 1 is No. 08 drawn tube or No. 10 drawn tubes.
As the part preferred version of the present embodiment scheme, described O type circle is made up of fluorine rubber, ethylene propylene diene rubber, hydrogenated nitrile-butadiene rubber, acrylate rubber or silicone rubber, the O type circle of apolegamy unlike material, easily can be applicable to the transmission of different medium, control O type circle cost:
As the improvement of the present embodiment scheme, described pair of O type circle steel pipe 1 is provided with zn-ni alloy deposits or zn-fe alloy coating with qin type joint 2-in-1 surface.
Two O type circle steel pipes 1 and 2-in-1 of the qin type joint of the present embodiment scheme adopt following processing technology, comprise the following steps:
(1) steel pipe 1 is processed, as shown in Figure 2:
1, steel pipe 1 carries out annealing or normalized treatment, and annealing is that steel pipe is slowly heated to uniform temperature, keeps enough time, and then with Reasonable Speed cooling, object reduces hardness, improves machinability; Eliminate residual stress, stable dimensions, reduce distortion and be inclined to crackle; Crystal grain thinning, adjustment tissue, eliminates tissue defects; Normalizing, also known as normalizing, is steel pipe is heated to AC3 or more than Acm 40 ~ 60 DEG C, after insulation a period of time, takes out in atmosphere or spray water, spray or the metal heating processing technology of quenching from stove.Its objective is and be to make grain refinement and distribution of carbides homogenization, remove the internal stress of material;
2, as shown in Figure 2 a, use pipe expander to carry out expander to the pipe end of steel pipe 1, make pipe end internal diameter be greater than steel pipe 1 internal diameter, expander object is that minimally latus rectum meets rate-of flow needs after spinning groove;
3, as shown in Figure 2 b, the pipe end of steel pipe 1 carries out upsetting muscle, and namely punching press pipe end makes it be out of shape, and makes pipe end form the 3rd ladder platform 13, and is formed with annular protrusion 12 in the middle part of the 3rd ladder platform 13 and steel pipe 1;
4, as shown in Figure 2 c, to the 3rd ladder platform spinning process, make the 3rd ladder platform form at least two annular grooves 11, spinning groove is fixed on the mould of spinning machine by hollow blank, while with lathe main axis, blank is stressed on spinning roller, make it the plastic deformation producing local, under the feed movement and rotary motion acting in conjunction of spinning roller, make the plastic deformation of local expand to all surfaces of blank step by step, form O type circle groove, complete the spinning of part;
5, excess stock is cut;
(2) qin type joint 2 is processed, as shown in Figure 3:
As shown in Figure 3 a, the first ladder platform 21 and second-order halfpace 22 is milled out at the media transport path inwall of qin type joint 2 with milling cutter, media transport path, the first ladder platform 21 and second-order halfpace 22 are coaxial, second-order halfpace 22 internal diameter is greater than the first ladder platform 21, and described second-order halfpace 22 is positioned at outside described first ladder platform 21;
(3) component processing:
1, the built-in O type circle of difference in annular groove 11;
2, steel pipe 1 pipe end inserts in the media transport path of qin type joint 2, and steel pipe 1 and qin type joint 2 are tightly connected, and annular protrusion 12 is arranged in second-order halfpace 22;
3, as shown in Figure 3 b, to the spinning process of second-order halfpace 22 edge, make second-order halfpace 22 edge be inverted to form annular notch 23, between steel pipe 1 and qin type joint 2 by annular protrusion 12 and annular notch 23 in movable riveted, form finished parts.
As the improvement of the present embodiment scheme, described finished parts electroplating of Zn-Ni alloy onto surface or zinc-iron alloy form coating, zn-ni alloy deposits is a kind of Novel protective coating of excellent corrosion resistance, zn-fe alloy coating crystallization is careful, color and luster is bright in vain, and cost is lower, thickness of coating can be controlled in 0.008 ~ 0.012mm scope.
As the improvement of the present embodiment scheme, passivation is carried out to described coating, as its corrosion resistance of the zn-fe alloy coating after passivation significantly promotes.
Above the technological scheme that the embodiment of the present invention provides is described in detail, apply specific case herein to set forth the principle of the embodiment of the present invention and mode of execution, the explanation of above embodiment is only applicable to the principle helping to understand the embodiment of the present invention; Meanwhile, for one of ordinary skill in the art, according to the embodiment of the present invention, embodiment and application area all will change, and in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. two O type circle steel pipe and a qin type joint component, is characterized in that:
Comprise steel pipe, qin type joint;
The pipe end outer wall of described steel pipe is provided with at least two annular grooves, and is provided with annular protrusion in the side of described annular groove in the middle part of described steel pipe;
The media transport path inwall of described qin type joint is provided with the first ladder platform coaxial with media transport path and second-order halfpace, described second-order halfpace internal diameter is greater than described first ladder platform, described second-order halfpace is positioned at outside described first ladder platform, and described second-order halfpace edge is provided with in-flanges formation annular notch;
The pipe end of described steel pipe is arranged in the first ladder platform of described qin type joint, and is respectively equipped with O type circle in the described annular groove of described steel pipe; The annular protrusion of described steel pipe is arranged in the annular notch of described qin type joint, is movable riveted by described annular protrusion and described annular notch between described steel pipe and described qin type joint.
2. two O type circle steel pipe as claimed in claim 1 and qin type joint component, is characterized in that:
The width of described annular protrusion is slightly less than the width of described annular notch.
3. two O type circle steel pipe as claimed in claim 1 and qin type joint component, is characterized in that:
Described steel pipe is the Low Carbon Steel Pipe that specific elongation is not less than 35%.
4. two O type circle steel pipe as claimed in claim 3 and qin type joint component, is characterized in that:
Described steel pipe is DC01 straight seam welded steel pipe or SPHD straight seam welded steel pipe (straight seam welded steel pipe is hereinafter referred to as welded tube).
5. two O type circle steel pipe as claimed in claim 1 and qin type joint component, is characterized in that:
Described steel pipe is No. 08 drawn tube or No. 10 drawn tubes.
6. two O type circle steel pipe as claimed in claim 1 and qin type joint component, is characterized in that:
Described O type circle is made up of fluorine rubber or ethylene propylene diene rubber or hydrogenated nitrile-butadiene rubber or acrylate rubber or silicone rubber.
7. two O type circle steel pipe as claimed in claim 1 and qin type joint component, is characterized in that:
Described pair of O type circle steel pipe and qin type joint member surface are provided with zn-ni alloy deposits or zn-fe alloy coating.
8. two O type circle steel pipe and a qin type joint component processing technology, is characterized in that comprising the following steps:
Steel pipe is processed:
Steel pipe carries out annealing or normalized treatment;
The pipe end of steel pipe carries out expander, makes pipe end internal diameter be greater than pipe diameter;
The pipe end of steel pipe carries out upsetting muscle, makes pipe end form the 3rd ladder platform, and forms annular protrusion in the middle part of the 3rd ladder platform and steel pipe;
To the 3rd ladder platform spinning process, the 3rd ladder platform is made to form at least two annular grooves;
Qin type joint is processed:
The first ladder platform and second-order halfpace is milled out at the media transport path inwall of qin type joint with milling cutter, media transport path, the first ladder platform and second-order halfpace are coaxial, second-order halfpace internal diameter is greater than the first ladder platform, and described second-order halfpace is positioned at outside described first ladder platform;
Component is processed:
The built-in O type circle of difference in annular groove;
Pipe end inserts in the media transport path of qin type joint, and steel pipe is connected with qin type joint sealing, and annular protrusion is arranged in second-order halfpace;
To the spinning process of second-order halfpace edge, making second-order halfpace edge be inverted to form annular notch, is movable riveted by annular protrusion and annular notch between steel pipe and qin type joint, forms finished parts.
9. two O type circle steel pipe as claimed in claim 8 and qin type joint component processing technology, is characterized in that:
Described finished parts electroplating of Zn-Ni alloy onto surface or zinc-iron alloy form coating.
10. two O type circle steel pipe as claimed in claim 9 and qin type joint component processing technology, is characterized in that:
Passivation is carried out to described coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510007010.2A CN105276315A (en) | 2015-01-08 | 2015-01-08 | Double-O-shaped-ring steel pipe and Ban jo combined piece and machining process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510007010.2A CN105276315A (en) | 2015-01-08 | 2015-01-08 | Double-O-shaped-ring steel pipe and Ban jo combined piece and machining process thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105276315A true CN105276315A (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510007010.2A Pending CN105276315A (en) | 2015-01-08 | 2015-01-08 | Double-O-shaped-ring steel pipe and Ban jo combined piece and machining process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105276315A (en) |
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| SE1150549A1 (en) * | 2011-06-16 | 2012-12-17 | Scania Cv Ab | Coupling device comprising a banana nipple, a tube and a sealing element |
| CN102829272A (en) * | 2012-08-29 | 2012-12-19 | 柳州豫新汽车空调有限公司 | Connecting device for automotive air conditioner pipeline and method thereof |
| CN202791049U (en) * | 2012-09-20 | 2013-03-13 | 潍坊倍力汽车零部件有限公司 | Ba-shaped joint connector |
| CN203585581U (en) * | 2013-11-04 | 2014-05-07 | 常州市盛士达汽车空调有限公司 | Connecting structure of air conditioning pipe and pressing board |
| WO2014148982A1 (en) * | 2013-03-19 | 2014-09-25 | Scania Cv Ab | Coupling device comprising a banjo union |
| CN204328343U (en) * | 2014-11-15 | 2015-05-13 | 山东龙口油管有限公司 | A kind of flexible conduit with fire protection flame retarding function |
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2015
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6082333A (en) * | 1999-01-06 | 2000-07-04 | Siemens Automotive Corporation | Rotation limiting connections between cross-over tubes and fuel rails for internal combustion engines |
| CN2906266Y (en) * | 2006-04-06 | 2007-05-30 | 宁波市振翔汽车部件有限公司 | Vehicular power steering pipe joint |
| CN201273414Y (en) * | 2008-08-14 | 2009-07-15 | 石春芳 | Novel pipeline joint piece |
| CN201863706U (en) * | 2010-11-19 | 2011-06-15 | 安徽江淮汽车股份有限公司 | Oil inlet and return pipe assembly for fuel tank of cargo truck |
| SE1150549A1 (en) * | 2011-06-16 | 2012-12-17 | Scania Cv Ab | Coupling device comprising a banana nipple, a tube and a sealing element |
| CN102829272A (en) * | 2012-08-29 | 2012-12-19 | 柳州豫新汽车空调有限公司 | Connecting device for automotive air conditioner pipeline and method thereof |
| CN202791049U (en) * | 2012-09-20 | 2013-03-13 | 潍坊倍力汽车零部件有限公司 | Ba-shaped joint connector |
| WO2014148982A1 (en) * | 2013-03-19 | 2014-09-25 | Scania Cv Ab | Coupling device comprising a banjo union |
| CN203585581U (en) * | 2013-11-04 | 2014-05-07 | 常州市盛士达汽车空调有限公司 | Connecting structure of air conditioning pipe and pressing board |
| CN204328343U (en) * | 2014-11-15 | 2015-05-13 | 山东龙口油管有限公司 | A kind of flexible conduit with fire protection flame retarding function |
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Application publication date: 20160127 |
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| RJ01 | Rejection of invention patent application after publication |