CN202171074U - Concrete conveying pipe - Google Patents
Concrete conveying pipe Download PDFInfo
- Publication number
- CN202171074U CN202171074U CN2011202902045U CN201120290204U CN202171074U CN 202171074 U CN202171074 U CN 202171074U CN 2011202902045 U CN2011202902045 U CN 2011202902045U CN 201120290204 U CN201120290204 U CN 201120290204U CN 202171074 U CN202171074 U CN 202171074U
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- Prior art keywords
- pipe
- straight
- bending
- flange
- wear
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000463 material Substances 0.000 claims abstract description 15
- 239000004568 cement Substances 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 17
- 229910000831 Steel Inorganic materials 0.000 abstract description 8
- 239000010959 steel Substances 0.000 abstract description 8
- 238000005266 casting Methods 0.000 abstract description 5
- 238000005495 investment casting Methods 0.000 abstract description 3
- 239000004576 sand Substances 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001037 White iron Inorganic materials 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 229910052804 chromium Inorganic materials 0.000 abstract description 2
- 239000011651 chromium Substances 0.000 abstract description 2
- 238000010622 cold drawing Methods 0.000 abstract description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- 238000005119 centrifugation Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 9
- 238000000465 moulding Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000010410 layer Substances 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 3
- 238000009750 centrifugal casting Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000009490 roller compaction Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- -1 fusible pattern Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000007528 sand casting Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to a concrete conveying pipe comprising a bending pipe and a straight tube. The bending pipe comprises a bending wear resistant pipe, a bending outer pipe and a bending pipe flange. The bending wear resistant pipe is sleeved in the bending outer pipe, and a filling layer is disposed between the bending wear resistant pipe and the bending outer pipe. The bending pipe flange and the bending outer pipe are connected together, and a bending pipe inner sleeve is disposed in the bending pipe flange. The straight pipe comprises a straight wear resistant pipe, a straight outer pipe and a straight pipe flange. The straight wear resistant pipe is disposed in the straight outer pipe, and the straight pipe flange is connected to the straight outer pipe. A straight pipe inner sleeve is disposed in the straight pipe flange. The bending wear resistant pipe, the straight wear resistant pipe, the bending pipe inner sleeve and the straight pipe inner sleeve adopt novel hypereutectic high chromium white cast iron materials, and can be formed by the investment casting, the sand mold casting or the centrifugation casting, thereby the requirement of high wear resistance can be satisfied. The bending outer pipe and the straight outer pipe can be formed by using the low carbon high-strength steel pipe in a hot-pushing or a cold-drawing manner. The concrete conveying pipe has advantages of low costs, easy forming, and abilities of satisfying the requirements of conveying pipe on the integral high-toughness and high strength, and solving the contradiction of the conveying pipe using the single material between the high-toughness and the high wear resistance, which is difficult to mediate.
Description
Technical field
The utility model relates to engineering machinery, specifically, provides the concrete delivery pipe that a kind of concrete pump uses.
Background technique
Concrete delivery pipe (containing bend pipe, straight tube, curved straight tube and Taper Pipe, down together) is a kind of be applied to the load in mixture jib of native pump truck, delivery pipe on chassis, also can be applicable to concrete pump; Its fed sheet of a media is concrete (slurry that a kind of cement, gravel, fine sand constitute), is easily damaged parts, in case wearing and tearing promptly need to change; Often cause the interruption of continuous operation; Frequent replacing wear-out part causes working efficiency to descend, and is serious even influence the engineering construction duration.
Because wear extent is directly proportional with load, according to wear-out part and combine the fluid mechanics principle analysis, its excurvation place maximum that is hit, wear extent is maximum also.Abrasion resistant cast steel bend pipe commonly used is at present thickeied the overall wear cycle that guarantees to the bent out portion position, to reduce waste of material, improves wear resistance, but is actually the weight increase and can not increases its overall wear resistance.
Existing curved straight tube commonly used generally adopts integral casting forming, and wear resistance and high tenacity can not obtain optimum Match, very easily occur worn out or the booster phenomenon.
Existing composite-curve outer tube commonly used adopts casting more, and is higher because of the thin difficult forming cost of production of wall, is difficult for producing in batches.Wear-resisting pipe integral casting forming lost efficacy when a bend pipe concrete will cause the impact wear of bend pipe port when another bend pipe moves simultaneously.
Taper Pipe commonly used at present adopts steel plate to be pressed into two semicircles, built-up welding again, welded flange moulding, and complex process because of overlay cladding is prone to crackle, causes the overlay cladding worn out inefficacy that comes off.
Straight tube commonly used at present adopts MnB, the moulding of MnCr seamless steel pipe welded flange, and again to the sclerosis of inwall induction hardening, this straight tube can cause in the using process booster or cause worn out inefficacy because of quenching is inhomogeneous because of through hardening.All design length is all about 30mm for the interior cover of general straight tube, and when straight tube was carried, tested surface impacts, and was too short because of interior cover, can't protect straight tube at the concrete in the bend pipe.
Summary of the invention
The purpose of the utility model is the deficiency that overcomes concrete delivery pipe in the background technique; A kind of high wear resistance is provided; Overall flexibility is good, intensity is high; The concrete delivery pipe of high stable performance, this delivery pipe have solved the high tenacity that single material is difficult to be in harmonious proportion and the contradiction of high wear resistance, long service life.
The technological scheme of the utility model: a kind of concrete delivery pipe; Comprise bend pipe, said bend pipe comprises curved wear-resisting pipe, curved outer tube and bend pipe flange, and curved wear-resisting pipe box is contained in the curved outer tube; Has packed layer between curved wear-resisting pipe and the curved outer tube; The bend pipe flange is connected with curved outer tube, has cover in the bend pipe in the bend pipe flange, has adhesive layer between cover and the bend pipe flange in the bend pipe.
Said curved wear-resisting pipe two ends respectively are designed with the straight end in location, are used for the assembly technology location, guarantee that curved wear-resisting pipe is concentric with the bend pipe flange.
Said bend pipe flange is the annular construction member that outer wall has connecting groove; Boxing is in the port of curved outer tube; Its inwall is provided with the technology non-return ring; Be used for the assembling and positioning of cover in curved wear-resisting pipe and the bend pipe, and can guarantee curved wear-resisting pipe in use not can because of fill insufficient in bending outer tube to two end motions.
The outside of said curved outer tube has the stuffing material feeding mouth, and its excurvation wall thickness is greater than interior curved wall thickness.
Said packed layer is a non-shrinkage cement grouting material, and when the filling concrete slurry, the stuffing material feeding mouth of said curved outer tube remains on highest order, can guarantee fully flowing and complete filling of cement slurry.
Said concrete delivery pipe comprises the straight tube that is connected with bend pipe, and said straight tube comprises straight wear-resisting pipe, straight outer tube and straight tube flange, and straight wear-resisting pipe places in the straight outer tube, has adhesive layer between the straight wear-resisting Guan Yuzhi outer tube; The straight tube flange is connected with straight outer tube, has cover in the straight tube in the straight tube flange, has adhesive layer between cover and the straight tube flange in the straight tube.
Said straight tube flange has the assembling and positioning ring, is convenient to the assembling and positioning of straight tube flange and straight outer tube.
The length of cover is equal to or greater than 34mm in the said straight tube, protects the wearing and tearing that are not hit of straight wear-resisting pipe.
Overlap in cover, the straight tube in said curved wear-resisting pipe, straight wear-resisting pipe and the bend pipe and adopt novel hypereutectic high-chromium white cast iron material, fusible pattern, sand mold or centrifugal casting moulding are to satisfy the requirement of high-wearing feature; Said curved outer tube, straight outer tube adopt low carbon high-strength steel pipe system of picking or cold-drawn moulding, have characteristics such as cost is low, easy-formation, can satisfy delivery pipe to whole high tenacity and high tenacity requirement simultaneously; Be machined to behind said bend pipe flange and the straight tube flange employing steel pipe roller-compaction and require size, reach matching requirements.
Below in conjunction with accompanying drawing and specific embodiment the utility model is further elaborated.
Description of drawings
Fig. 1 is the assembly structure figure of bend pipe;
Figure `2 is the assembly structure figure of straight tube;
Fig. 3 is the assembly structure figure of curved straight tube;
Fig. 4 is the assembly structure figure of circular cone straight tube;
Fig. 5 is the schematic representation of the structure of curved wear-resisting pipe;
Fig. 6 is the structural representation of curved outer tube;
Fig. 7 is the structural representation of cover in the bend pipe;
Fig. 8 is the structural representation of bend pipe flange;
Fig. 9 is the bend pipe flange and the schematic representation that is connected of curved outer tube;
Figure 10 is the structural representation of cover in the straight tube;
Figure 11 is the structural representation of straight tube flange;
Figure 12 is the structural representation of straight wear-resisting pipe;
Figure 13 is the structural representation of straight outer tube.
Embodiment
Like Fig. 1-shown in Figure 13, concrete delivery pipe comprises bend pipe 100 and straight tube 200, and straight tube 200 is connected with bend pipe 100; Bend pipe 100 comprises curved wear-resisting pipe 2, curved outer tube 1 and bend pipe flange 4; Curved wear-resisting pipe 2 is sleeved in the curved outer tube 1, has packed layer 8 between curved wear-resisting pipe 2 and the curved outer tube 1, and bend pipe flange 4 is connected with curved outer tube 1; Has cover 3 in the bend pipe in the bend pipe flange 4, bonding between cover 3 and the bend pipe flange 4 in the bend pipe.Straight tube 200 comprises straight wear-resisting pipe 12, straight outer tube 11 and straight tube flange 13, and straight wear-resisting pipe 12 places in the straight outer tube 11, bonds between straight wear-resisting pipe 12 and the straight outer tube 11; Straight tube flange 13 is connected with straight outer tube 11, has cover 14 in the straight tube in the straight tube flange 13, bonding between cover 14 and the straight tube flange 13 in the straight tube.
Curved wear-resisting pipe 2 requires not process, and adopts the investment casting moulding, and teeming or side are annotated technology; Cover 3 adopts sand casting process, investment casting or centrifugal casting moulding with the interior cover 14 of straight tube in the bend pipe, reaches the material requested requirement through heat treatment; Curved outer tube 1 adopts bend pipe shaping apparatus the required radian of high-strength seamless steel pipe pushing, is adjusted to required size and bores grout hole through beveling machine; Bend pipe flange 4 reaches the necessary requirement size after adopting seamless steel pipe roller-compaction, fine finishing with straight tube flange 13, and also directly fine finishing reaches required size.Straight wear-resisting pipe 12 adopts the centrifugal casting moulding, reaches the material requested requirement through heat treatment; Straight outer tube 11 adopts cold-drawing seamless tube or picks to required size.
To bend wear-resisting pipe 2 and be inserted in the curved outer tube 1, bend pipe flange 4 is loaded onto at two ends, places on the assembling spot welding frock that the adjustment center is high, in planeness to the standard-required scope, after spot welding is fixing; Adopt boxing positioner, gas to protect weldering welding circular weld 6.With cover 3 coated with metal glue or metal repairing agents in the bend pipe, in the good bend pipe flange 4 of the boxing of packing into.The bend pipe 100 that installs cover 3 in the bend pipe is put on the frock, makes the interior cover 3 of bend pipe keep concordant, kept dry about 0.5-2 hour with bend pipe flange 4.Assembling, welding bend pipe 100 is well formed packed layer 8 through stuffing material feeding mouth 7 perfusion non-shrinkage material-muds, block stuffing material feeding mouth 7 with the round steel 5 of 4-5mm, solidify after 2-8 hour, ball blast spot welding grout hole obtains the finished product bend pipe.
With two straight tube flanges 13 and straight outer tube 11 assembling and positioning, spot welding is fixed, and adopts girth welding machine, gas to protect weldering welding circular weld 15.With straight wear-resisting pipe 12 coated with metal glue, push in the straight outer tube 11.With cover 14 coated with metal glue or metal repairing agents in the straight tube; In the good straight tube flange 13 of the boxing of packing into; The straight tube 200 that installs cover 14 in the straight tube is put on the frock, makes the interior cover 14 of straight tube keep concordant with straight tube flange 13, keeping dry obtained finished-product straight pipe in about 0.5-2 hour.
With bend pipe 100 and straight tube 200 combinations, obtain curved straight tube.Straight tube can be cylinder straight tube or circular cone straight tube.
Claims (8)
1. a concrete delivery pipe comprises bend pipe (100), it is characterized in that; Said bend pipe (100) comprises curved wear-resisting pipe (2), curved outer tube (1) and bend pipe flange (4); Curved wear-resisting pipe (2) is sleeved in the curved outer tube (1), has packed layer (8) between curved wear-resisting pipe (2) and the curved outer tube (1), and bend pipe flange (4) is connected with curved outer tube (1); Has cover (3) in the bend pipe in the bend pipe flange (4), bonding between cover (3) and the bend pipe flange (4) in the bend pipe.
2. concrete delivery pipe according to claim 1 is characterized in that, said curved wear-resisting pipe (2) two ends respectively are designed with the straight end in location (9).
3. concrete delivery pipe according to claim 2 is characterized in that, said bend pipe flange (4) has the annular construction member of connecting groove (10) for outer wall, and boxing is in the port of curved outer tube (1), and its inwall is provided with technology non-return ring (16).
4. concrete delivery pipe according to claim 3 is characterized in that, the outside of said curved outer tube (1) has stuffing material feeding mouth (7).
5. concrete delivery pipe according to claim 4 is characterized in that, said packed layer (8) is non-shrinkage cement grouting material, and when the filling concrete slurry, the stuffing material feeding mouth (7) of said curved outer tube (1) remains on highest order.
6. according to claim 1 or 2 or 3 or 4 or 5 described concrete delivery pipes; It is characterized in that; Comprise the straight tube (200) that is connected with bend pipe (100); Said straight tube (200) comprises straight wear-resisting pipe (12), straight outer tube (11) and straight tube flange (13), and straight wear-resisting pipe (12) places in the straight outer tube (11), bonding between straight wear-resisting pipe (12) and the straight outer tube (11); Straight tube flange (13) is connected with straight outer tube (11), has cover (14) in the straight tube in the straight tube flange (13), bonding between cover (14) and the straight tube flange (13) in the straight tube.
7. concrete delivery pipe according to claim 6 is characterized in that, said straight tube flange (13) has assembling and positioning ring (17).
8. concrete delivery pipe according to claim 6 is characterized in that, the length of cover (14) is equal to or greater than 34mm in the said straight tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202902045U CN202171074U (en) | 2011-08-11 | 2011-08-11 | Concrete conveying pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202902045U CN202171074U (en) | 2011-08-11 | 2011-08-11 | Concrete conveying pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202171074U true CN202171074U (en) | 2012-03-21 |
Family
ID=45829270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202902045U Expired - Fee Related CN202171074U (en) | 2011-08-11 | 2011-08-11 | Concrete conveying pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202171074U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297304A (en) * | 2011-08-11 | 2011-12-28 | 李宗仙 | Concrete delivery pipe and manufacturing method thereof |
| CN103615631A (en) * | 2013-11-19 | 2014-03-05 | 中联重科股份有限公司 | Concrete conveying straight pipe, manufacturing method thereof and concrete pumping equipment |
| CN103672274A (en) * | 2013-12-10 | 2014-03-26 | 中联重科股份有限公司 | Conveying pipeline and concrete conveying equipment |
| CN114413081A (en) * | 2022-01-25 | 2022-04-29 | 三一汽车制造有限公司 | Arm section assembly and operation machine |
-
2011
- 2011-08-11 CN CN2011202902045U patent/CN202171074U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102297304A (en) * | 2011-08-11 | 2011-12-28 | 李宗仙 | Concrete delivery pipe and manufacturing method thereof |
| CN103615631A (en) * | 2013-11-19 | 2014-03-05 | 中联重科股份有限公司 | Concrete conveying straight pipe, manufacturing method thereof and concrete pumping equipment |
| CN103672274A (en) * | 2013-12-10 | 2014-03-26 | 中联重科股份有限公司 | Conveying pipeline and concrete conveying equipment |
| CN114413081A (en) * | 2022-01-25 | 2022-04-29 | 三一汽车制造有限公司 | Arm section assembly and operation machine |
| CN114413081B (en) * | 2022-01-25 | 2024-06-11 | 三一汽车制造有限公司 | Arm joint assembly and working machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUNAN LISHEN NEW MATERIAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LI ZONGXIAN Effective date: 20130318 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 427000 ZHANGJIAJIE, HUNAN PROVINCE TO: 410000 XIANGTAN, HUNAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130318 Address after: 410000 Hunan County of Xiangtan province Tianyi demonstration zone day road Patentee after: Hunan Lishen New Material Technology Co., Ltd. Address before: 427000 Zhangjiajie city of Hunan province Nan Zhuang Ping Road No. 99 Dayong Patentee before: Li Zongxian |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20160811 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |