CN208417908U - A kind of concrete conveying elbow pipe - Google Patents
A kind of concrete conveying elbow pipe Download PDFInfo
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- CN208417908U CN208417908U CN201821010124.8U CN201821010124U CN208417908U CN 208417908 U CN208417908 U CN 208417908U CN 201821010124 U CN201821010124 U CN 201821010124U CN 208417908 U CN208417908 U CN 208417908U
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Abstract
The utility model provides a kind of concrete conveying elbow pipe, including double-deck pipe body, double-deck pipe body includes the outer tube layer that material is mild steel and the inner tube layer that material is antifriction alloy, and the thickness of inner tube layer outer arc side is gradually reduced from centre to both ends, and the thickness of inner arc side is gradually increased from centre to both ends.The concrete conveying elbow pipe of the utility model, including double-deck pipe body, double-deck pipe body includes the outer tube layer that material is mild steel and the inner tube layer that material is antifriction alloy, wherein, the abrasion of concrete conveying elbow pipe and force status design in the structure combination work progress of inner tube layer, the thickness of outer arc side is gradually reduced from centre to both ends, the thickness of inner arc side is gradually increased from centre to both ends, thus the reinforcement weak link of the structure of concrete conveying elbow pipe, so that the concrete conveying elbow pipe design of the utility model is more reasonable, it is wear-resisting, shock resistance, pressure-bearing is good, extend the service life of concrete conveying elbow pipe.
Description
Technical field
The utility model relates to concrete conveying pipe technical fields, and in particular to a kind of concrete conveying elbow pipe.
Background technique
Concrete is to be mixed by stone aggregate, cement, water and other additives according to certain proportion.Concrete pump
The concrete mixer and drag pump in equipment are sent, since it has many advantages, such as flexibly, conveniently, efficiently, it is high-rise to have become building at present
Important concrete conveying equipment when building, concrete pumping equipment is by concrete delivery pipe concrete conveyance to building height
Layer.
In concrete conveyance, pumping procedure, concrete delivery pipe is subjected to washing away for high pressure and concrete, general to require
Guarantee 17 megapascal pressure maintaining five minutes not booster.Bend pipe in concrete delivery pipe, effect is particularly critical, can directly affect concrete
The service life of delivery pipe, in operation process, concrete conveying elbow pipe is simultaneously by abrasive wear and impact wear, wherein interior
The failure that arc is worn out, outer arc middle part is worn out, punctures in the middle part of outer arc accounts for the 95% of bend pipe failure, and the premature wear of bend pipe accelerates therewith
The straight tube inordinate wear of connection causes the service life of concrete delivery pipe that cannot ensure, this is general existing for concrete delivery pipe
All over problem.
To solve above-mentioned technical problem, there are many trials to design, the manufacture of concrete conveying elbow pipe.Existing market is most logical
It is single layer cast steel bend pipe, but single layer cast steel bend pipe wearability and safety in utilization are all lower.The double-deck hot pushing bent tubes, are able to satisfy
Security requirement, but wearability is low.Wall liner ceramics guarantee safety and wearability, but poor impact resistance in mild steel.Mild steel
Outer tube and various material inner tubes are compound, the structure and manufacturing process filled by cement slurry, difficult in wearability and impact resistance
In reaching good balance.
Utility model content
At least one problem in solve above-mentioned technical problem, the utility model aim are to provide a kind of wear-resisting, anti-
The good concrete conveying elbow pipe of impact, load performance.
The utility model provides a kind of concrete conveying elbow pipe, including double-deck pipe body, and the double-deck pipe body includes that material is
The outer tube layer and material of mild steel are the inner tube layer of antifriction alloy, the thickness of inner tube layer outer arc side from centre to both ends by
Decrescence small, the thickness of inner tube layer inner arc side is gradually increased from centre to both ends.
As the improvement of above-mentioned concrete conveying elbow pipe on the one hand, in the end of double-deck pipe body, the inner tube layer outer arc
The thickness of side is equal to the thickness of inner tube layer inner arc side.
As the improvement of above-mentioned concrete conveying elbow pipe on the one hand, the both ends of the double-deck pipe body are respectively welded described curved
Pipe fitting；The union elbow inner liner abrasive resistant set；Or, the union elbow is axially docked with the outer tube layer, the inner tube layer
Extend and be close to the inner wall setting of the union elbow to union elbow side.
As the improvement of above-mentioned concrete conveying elbow pipe on the one hand, the antifriction alloy is high-chromium alloy.
As the improvement of above-mentioned concrete conveying elbow pipe on the one hand, the hardness of the inner tube layer is 62-64HRC, described
The ballistic work of inner tube layer is greater than 5J.
As shown in the above, the concrete conveying elbow pipe of the utility model, including double-deck pipe body, the double-deck pipe body packet
Include the outer tube layer that material is mild steel and the inner tube layer that material is antifriction alloy, wherein the structure combination work progress of inner tube layer
The abrasion of middle concrete conveying elbow pipe and force status design, specifically, the thickness of inner tube layer outer arc side from centre to
Both ends are gradually reduced, the thickness of inner tube layer inner arc side is gradually increased from centre to both ends, and thus reinforcement concrete is defeated
The weak link of the structure of bend pipe is sent, so that the concrete conveying elbow pipe design of the utility model is more reasonable, wear-resisting, shock resistance,
Pressure-bearing is good, extends the service life of concrete conveying elbow pipe.
The concrete conveying elbow pipe of the utility model can be manufactured using following manufacturing method, specifically, the manufacture
Method may include steps of:
Step 1: using the outer tube layer of mild steel production bend pipe；
Step 2: syphon shape foam type chamber is made using foamed material, the thickness of the syphon shape foam type chamber outer arc side by
Centre is gradually reduced to both ends, and the thickness of inner arc side is gradually increased from centre to both ends；
Step 3: outer tube layer liner syphon shape foam type chamber, the intracavitary side brushing insulating moulding coating of syphon shape foam type；
Step 4: burying sand；
Step 5: the antifriction alloy liquid of predetermined dimension being injected into syphon shape foam type chamber, vacuumizes, is molded into casting
The intracavitary antifriction alloy liquid of syphon shape foam type melts the inner tube layer of formation bend pipe after foam, and inner tube layer and outer tube layer constitute double-deck
Tube body.
The improvement of manufacturing method on the one hand as above-mentioned concrete conveying elbow pipe, further includes following steps: step 6:
The both ends end of double-deck pipe body is respectively welded union elbow, outside union elbow inner liner abrasive resistant set or the union elbow and the pipe
The axial docking of layer, the inner tube layer extend to union elbow side and are close to the inner wall setting of the union elbow.
The improvement of manufacturing method on the one hand as above-mentioned concrete conveying elbow pipe, the antifriction alloy in the step 5
Liquid is high-chromium alloy liquid, and the high-chromium alloy liquid by high-chromium alloy aqueous fusion by refining to predetermined temperature, deoxidation, skimming and desulfurization process
It is made.
The improvement of manufacturing method on the one hand as above-mentioned concrete conveying elbow pipe, in the step 2: the foam material
Material is polystyrene, is foamed by aluminium-making mould.
The improvement of manufacturing method on the one hand as above-mentioned concrete conveying elbow pipe, in the step 1: the outer tube layer
Pick molding.
The concrete conveying elbow pipe of above method manufacture, including double-deck pipe body, the double-deck pipe body include that material is low-carbon
The outer tube layer and material of steel are the inner tube layer of antifriction alloy, wherein concrete conveyance in the structure combination work progress of inner tube layer
The abrasion of bend pipe and force status design, specifically, the thickness of inner tube layer outer arc side is gradually reduced from centre to both ends,
The thickness of inner tube layer inner arc side is gradually increased from centre to both ends, thus the reinforcement structure of concrete conveying elbow pipe
Weak link, so that concrete conveying elbow pipe design of the invention is more reasonable, wear-resisting, shock resistance, pressure-bearing are good, extend concrete
The service life of transporting elbow.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is the structural schematic diagram of the utility model axial section；
Fig. 2 is the structural schematic diagram of the utility model radial section.
Appended drawing reference:
1-2-inner tube layer of outer tube layer
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
As shown in Figure 1 to Figure 2, the utility model proposes a kind of concrete conveying elbow pipes, including double-deck pipe body, described double
Layer tube body includes the outer tube layer 1 that material is mild steel and the inner tube layer 2 that material is antifriction alloy, the 2 outer arc side of inner tube layer
Thickness be gradually reduced from centre to both ends, the thickness of the 2 inner arc side of inner tube layer is gradually increased from centre to both ends.
As shown in the above, the concrete conveying elbow pipe of the utility model, including double-deck pipe body, the double-deck pipe body packet
Include the outer tube layer 1 that material is mild steel and the inner tube layer 2 that material is antifriction alloy, wherein the structure of inner tube layer 2 is combined and constructed
The abrasion of concrete conveying elbow pipe and force status design in journey, specifically, the thickness of 2 outer arc side of the inner tube layer is by centre
It is gradually reduced to both ends, the thickness of the 2 inner arc side of inner tube layer is gradually increased from centre to both ends, thus reinforcement concrete
The weak link of the structure of transporting elbow, so that the concrete conveying elbow pipe of the utility model designs more reasonable, wear-resisting, anti-impact
Hit, pressure-bearing it is good, extend the service life of concrete conveying elbow pipe.
For convenient for bridge piece connector, in the end of double-deck pipe body bridge piece connector, the 2 outer arc side of inner tube layer
Thickness is equal to the thickness of 2 inner arc side of inner tube layer.
In a specific embodiment, the union elbow is respectively welded in the both ends of the double-deck pipe body, and the bend pipe connects
Head inner liner abrasive resistant set.In another alternative embodiment, the union elbow is axially docked with the outer tube layer 1, in the pipe
Layer 2 extends to union elbow side and is close to the inner wall setting of the union elbow.
Specifically, the antifriction alloy is high-chromium alloy.The hardness of the inner tube layer 2 is 62-64HRC, the inner tube layer 2
Ballistic work be greater than 5J.In the example, the inner tube layer 2 of double-deck pipe body is high-chromium alloy material, and the carbide of high-chromium alloy is microcosmic
Hardness is very high, is HV1500~1800, and high-chromium alloy wear-resisting property is high, and the macrohardness of wearing layer is in HRC62 or more, and needle
To the failure properties of concrete conveying elbow pipe during transportation, processing is optimized to 2 structure of inner tube layer, is more advantageous to and mentions
Rise the service life of concrete conveying elbow pipe.
The concrete conveying elbow pipe of the utility model can be made of following manufacturing method.Specifically, the manufacture
Method may include steps of: step 1: using the outer tube layer 1 of mild steel production bend pipe；Step 2: being made of foamed material
The thickness of syphon shape foam type chamber, the syphon shape foam type chamber outer arc side is gradually reduced from centre to both ends, inner arc side
Thickness is gradually increased from centre to both ends；Step 3: 1 liner syphon shape foam type chamber of outer tube layer, the intracavitary side of syphon shape foam type apply
Brush insulating moulding coating；Step 4: burying sand；Step 5: the antifriction alloy liquid of predetermined dimension being injected into syphon shape foam type chamber, in casting
It vacuumizes, is molded into the inner tube layer 2 that the intracavitary antifriction alloy liquid of syphon shape foam type melts formation bend pipe after foam, inner tube layer 2
Double-deck pipe body is constituted with outer tube layer 1.
The concrete conveying elbow pipe of above method manufacture, including double-deck pipe body, the double-deck pipe body include that material is low-carbon
The outer tube layer 1 and material of steel are the inner tube layer 2 of antifriction alloy, wherein concrete is defeated in the structure combination work progress of inner tube layer 2
The abrasion and force status design for sending bend pipe, specifically, the outer arc side of the inner tube layer 2 is the thin thick middle structure in both ends, puts down
It slips over and crosses, the structure with a thickness of both ends thickness intermediate thin of the inner arc side of the inner tube layer 2, smooth transition, thus reinforcement is mixed
The weak link of the structure of solidifying soil transporting elbow, so that the concrete conveying elbow pipe design of the utility model is more reasonable, it is wear-resisting, anti-
Impact, pressure-bearing are good, extend the service life of concrete conveying elbow pipe.
Preferably, further include following steps: step 6: union elbow is respectively welded in the both ends end of double-deck pipe body, and bend pipe connects
Head inner liner abrasive resistant set or the union elbow are axially docked with the outer tube layer 1, and the inner tube layer 2 extends to union elbow side
And it is close to the inner wall setting of the union elbow.In a specific embodiment, by the double-deck pipe body connecting flange machine in step 5
Add, the wear-resistant sleeve of high abrasion is embedded in connecting flange first, flange combination is formed, then by flange combination and metallurgical bonding
Double-deck pipe body by water cooling welding procedure welding fabrication, thereby guarantee that the hardness of final molding commissure, entire bend pipe is without thin
Weak link.
Specifically, antifriction alloy liquid in the step 5 is high-chromium alloy liquid, the high-chromium alloy liquid is by by high-chromium alloy
Aqueous fusion is refined to predetermined temperature, deoxidation, skimming is made with desulfurization process, and the outer tube layer 1 of double-deck pipe body uses mild steel, liner
Using high-chromium alloy wear-resistant material, preferable metallurgical bonding is formd under high temperature, it is both wear-resisting and resistance to high chromium alloy material
Etching characteristic, and have higher mechanical strength and higher shock resistance, it solves single material and other complex methods is difficult
With the solderability of reconciliation and wearability, the contradiction of impact resistance, material property advantage is made to perform to optimum degree, using it is safe can
It leans on.
Specifically, in the step 2: the foamed material is polystyrene, and is foamed by aluminium-making mould；The step
In rapid 1: the outer tube layer 1 picks molding.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of concrete conveying elbow pipe, including double-deck pipe body, it is characterised in that: the double-deck pipe body includes that material is mild steel
Outer tube layer (1) and material be antifriction alloy inner tube layer (2), the thickness of inner tube layer (2) the outer arc side is from centre to two
Head is gradually reduced, and the thickness of inner tube layer (2) the inner arc side is gradually increased from centre to both ends.
2. concrete conveying elbow pipe according to claim 1, it is characterised in that: in the end of double-deck pipe body, the pipe
The thickness of layer (2) outer arc side is equal to the thickness of inner tube layer (2) inner arc side.
3. concrete conveying elbow pipe according to claim 2, it is characterised in that:
Union elbow is respectively welded in the both ends of the double-deck pipe body；
The union elbow inner liner abrasive resistant set；Or, the union elbow is axially docked with the outer tube layer (1), the inner tube layer
(2) extend and be close to the inner wall setting of the union elbow to union elbow side.
4. concrete conveying elbow pipe according to claim 1-3, it is characterised in that: the antifriction alloy is Gao Ge
Alloy.
5. concrete conveying elbow pipe according to claim 4, it is characterised in that: the hardness of the inner tube layer (2) is 62-
The ballistic work of 64HRC, the inner tube layer (2) are greater than 5J.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821010124.8U CN208417908U (en) | 2018-06-28 | 2018-06-28 | A kind of concrete conveying elbow pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821010124.8U CN208417908U (en) | 2018-06-28 | 2018-06-28 | A kind of concrete conveying elbow pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208417908U true CN208417908U (en) | 2019-01-22 |
Family
ID=65106559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821010124.8U Active CN208417908U (en) | 2018-06-28 | 2018-06-28 | A kind of concrete conveying elbow pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208417908U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644514A (en) * | 2018-06-28 | 2018-10-12 | 三汽车制造有限公司 | A kind of concrete conveying elbow pipe and its manufacturing method |
| CN111043432A (en) * | 2019-12-31 | 2020-04-21 | 马鞍山市海天重工科技发展有限公司 | Enhancement type integrated wear-resistant elbow, conveying pipeline and concrete pump truck |
| CN112145814A (en) * | 2020-09-24 | 2020-12-29 | 武汉大学 | Slurry shield wear-resistant slurry pipe for sandy gravel-cobble stratum |
-
2018
- 2018-06-28 CN CN201821010124.8U patent/CN208417908U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108644514A (en) * | 2018-06-28 | 2018-10-12 | 三汽车制造有限公司 | A kind of concrete conveying elbow pipe and its manufacturing method |
| CN111043432A (en) * | 2019-12-31 | 2020-04-21 | 马鞍山市海天重工科技发展有限公司 | Enhancement type integrated wear-resistant elbow, conveying pipeline and concrete pump truck |
| CN112145814A (en) * | 2020-09-24 | 2020-12-29 | 武汉大学 | Slurry shield wear-resistant slurry pipe for sandy gravel-cobble stratum |
| CN112145814B (en) * | 2020-09-24 | 2022-04-15 | 武汉大学 | Slurry shield wear-resistant slurry pipe for sandy gravel-cobble stratum |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190708 Address after: 417100 Majiajing Village, Shimashan Town, Lianyuan City, Loudi City, Hunan Province (People's East Road) Patentee after: Loudi Zhong Yuan new material Co., Ltd. Address before: 410100 31 industrial city, Changsha economic and Technological Development Zone, Hunan Patentee before: SANY Automobile Manufacturing Co., Ltd. |