CN203948803U - A kind of concrete pumping equipment and concrete delivery pipe - Google Patents
A kind of concrete pumping equipment and concrete delivery pipe Download PDFInfo
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- CN203948803U CN203948803U CN201420342451.9U CN201420342451U CN203948803U CN 203948803 U CN203948803 U CN 203948803U CN 201420342451 U CN201420342451 U CN 201420342451U CN 203948803 U CN203948803 U CN 203948803U
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Abstract
The utility model discloses a kind of concrete delivery pipe, comprise the Clad Steel Plate that is rolled into tubulose, weld at Clad Steel Plate joint; Clad Steel Plate comprises inner layer steel plate and outer layer plate.The utility model also provides a kind of concrete pumping equipment.Clad Steel Plate combination force of the present utility model is strong, gapless between inner layer steel plate and outer layer plate, in can avoiding using due to inner layer steel plate peels off or peeling causes plugging.
Description
Technical field
The utility model relates to engineering machinery field, particularly a kind of concrete delivery pipe of concrete pumping equipment.
Background technique
Concrete mixer is because its feature such as flexible, convenient, efficient becomes the important tool of construction industry, and the sustainable development of domestic infrastructure construction provides huge space for pump truck, also pump truck various functions is had higher requirement simultaneously.Wherein concrete delivery pipe is to affect the working life of concrete pumping equipment and the critical component of stability.
At present, be bimetallic tube for the delivery pipe great majority on concrete pumping machinery.Inner tube is wear-resisting high alloy steel, to slow down the impact wear of concrete particle to inner tube; Outer tube is the good low carbon steel of toughness, prevents that body from cracking in transport, work.The flow of this bimetallic tube is as follows: first choose inner and outer pipe raw material, and the two is carried out to every preparatory works such as pickling, saponification, cleaning; Adopt the techniques such as cold-drawn, extruding that inner tube is suppressed in outer tube, then heat-treat, the operation such as welded flange, edge cover.
The deficiency that this technique exists is: (1), due to the restriction of cold-drawing technology, inner tube cannot adopt wear resistance and the higher material of intensity, because of be this kind of material often fragility is larger, easy-rupturing in the time of cold-drawn; (2) stock utilization is low.Due in Cold Drawing Process, part, by fixture clamping distortion, need be clipped in material two ends, and waste is serious; (3) because inner and outer pipes combination force is lower, due to bi-material performance difference, there is gap when heat treatment in this technique between inner and outer pipe after heat treatment.And while use, after inner tube wearing and tearing, very easily occur peeling off or skin effect phenomenon and cause plugging; (4) before inner and outer pipe drawing, need carry out every preparatory works such as pickling, saponification, cleaning, production procedure is numerous and diverse, inefficiency.
Model utility content
In view of this, the utility model proposes a kind of concrete pumping equipment and concrete delivery pipe and manufacture method, to solve above-mentioned technical problem.
On the one hand, the utility model provides a kind of concrete delivery pipe, comprises the Clad Steel Plate that is rolled into tubulose, welds at Clad Steel Plate joint; Clad Steel Plate comprises inner layer steel plate and outer layer plate.
Further, the material of inner layer steel plate is medium carbon low alloy steel or high-carbon low-alloy steel, and the material of outer layer plate is low carbon steel.
Further, be welded with respectively flange at the two ends of tubulose Clad Steel Plate, be nested with wear-resistant sleeve at flange.
In addition, the utility model also provides and has comprised above-mentioned concrete delivery pipe.
The utility model proposes a kind of concrete delivery pipe and concrete pumping equipment, adopt Clad Steel Plate, improved the combination force of inner layer steel plate and outer layer plate, gapless between inner layer steel plate and outer layer plate, in can avoiding using due to problems such as inner layer steel plate peels off or peeling causes pluggings.In addition, inner layer steel plate is medium carbon low alloy steel or the high-carbon low-alloy steel that through hardening ability is strong, and outer layer plate adopts low carbon steel, and after heat treatment, inner layer steel plate is organized as high carbon martensite, and hardness can reach 55HRC, and wear resistance is strong; Outer layer plate is that pearlite adds ferrite, and hardness is low, good toughness, and strong shock resistance can play a very good protection to inner tube.In addition, interior hard outer tough after heat treatment, meet the composite request of pumping equipment to delivery pipe wear resistance and toughness.The use of Clad Steel Plate has improved the combination force between inner layer steel plate and outer layer plate, and while having avoided using, inner layer steel plate peels off or peeling plugging; The selection of interior steel plate and outer layer plate material has ensured the demand of delivery pipe wear resistance, toughness.
Brief description of the drawings
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the utility model concrete conveyance pipe manufacturing method schematic diagram;
Fig. 2 is the utility model structure of concrete conveying pipe schematic diagram;
Fig. 3 is the A-A view of Fig. 2.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the utility model can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Below in conjunction with Fig. 1 and Fig. 2 and Fig. 3, preferred embodiment of the present utility model is described in further detail, a kind of concrete delivery pipe of this preferred embodiment is example:
As shown in Figures 2 and 3, the concrete delivery pipe that the utility model provides, concrete delivery pipe adopts the Clad Steel Plate that is rolled into tubulose, welds at Clad Steel Plate joint 5; Clad Steel Plate comprises inner layer steel plate 4 and outer layer plate 3.The two ends of tubulose Clad Steel Plate are welded with respectively flange 2, have been nested with wear-resistant sleeve 1 at flange 2.
Adopt Clad Steel Plate, improved the combination force of inner layer steel plate 4 and outer layer plate 3, gapless between inner layer steel plate 4 and outer layer plate 3, can avoid in using due to problems such as inner layer steel plate 4 peels off or peeling causes pluggings.In addition, inner layer steel plate 4 is strong medium carbon low alloy steel or the high-carbon low-alloy steel of through hardening ability, and outer layer plate 3 adopts low carbon steel, and after heat treatment, inner layer material is organized as high carbon martensite, and hardness can reach 55HRC, and wear resistance is strong; Outer for pearlite adds ferrite, hardness is low, good toughness, and strong shock resistance can play a very good protection to inner tube.The use of Clad Steel Plate has improved the combination force between inner layer steel plate 4 and outer layer plate 3, and while having avoided using, inner layer steel plate 4 peels off or peeling plugging; The selection of interior steel plate 4 and outer layer plate 3 materials has ensured the demand of delivery pipe wear resistance, toughness.
As shown in Figure 1, the concrete conveyance pipe manufacturing method that the utility model provides is as follows:
By combination process, inner layer steel plate 4 and outer layer plate 3 are prepared into Clad Steel Plate, Clad Steel Plate is rolled into tubulose, then weld by welding procedure.Can also, after tubulose Clad Steel Plate has welded, heat-treat.After easy to connect also can heat treatment completing for delivery pipe, be welded with respectively flange 2 at the two ends of tubulose Clad Steel Plate, be nested with wear-resistant sleeve 1 at flange 2.
Strong medium carbon low alloy steel or the high-carbon low-alloy steel of material selection through hardening ability of inner layer steel plate 4, as 65Mn, 55SiMn etc.; The material selection low carbon steel of outer layer plate 3, as 20#, Q345 etc.The preparation of Clad Steel Plate can adopt the rolling mill practices such as hot rolling composite algorithm or cold rolling composite algorithm, also can adopt the techniques such as powder metallurgy composite algorithm, also can adopt the technique such as laser melting coating or thermal spraying, the inside and outside material of this Clad Steel Plate is in conjunction with tight, there is the performance of bi-material simultaneously, can be considered a kind of Clad Steel Plate with bi-material advantage.By this Clad Steel Plate blanking, adopt ERW resistance welding to make concrete delivery pipe after steel plate being rolled into tubulose by mould.Clad Steel Plate is at least prepared from by two-layered steel plates, also can be prepared from by three layers or four layers of steel plate, and for example, inner layer steel plate 4 comprises at least two-layered steel plates, and outer layer plate 3 also can comprise at least two-layered steel plates.The steel plate number of plies of inner layer steel plate 4 and outer layer plate 3 is unrestricted.That is to say that Clad Steel Plate can be prepared from by multilayer steel plates.
Inner layer steel plate 4 and outer layer plate 3 are prepared into Clad Steel Plate by combination process, improve the combination force of inner layer steel plate 4 and outer layer plate 3, gapless between inner layer steel plate 4 and outer layer plate 3, in can avoiding using due to inner layer steel plate 4 peels off or peeling causes plugging.In addition, owing to having cancelled drawing process, cancelled the operations such as pickling, saponification, cleaning, technological process is simple, has improved manufacturing efficiency.In addition, inner layer steel plate 4 is strong medium carbon low alloy steel or the high-carbon low-alloy steel of through hardening ability, outer layer plate 3 adopts low carbon steel, and the use of Clad Steel Plate has improved the combination force between inner layer steel plate 4 and outer layer plate 3, and while having avoided using, inner layer steel plate 4 peels off or peeling plugging; The selection of interior steel plate 4 and outer layer plate 3 materials has ensured the demand of delivery pipe wear resistance, toughness.
After heat treatment, inner layer steel plate 4 is organized as high carbon martensite, and hardness can reach 55HRC, and wear resistance is strong; Outer layer plate 3 is for pearlite adds ferrite, and hardness is low, good toughness, and strong shock resistance can play a very good protection to inner tube.In addition, interior hard outer tough after heat treatment, meet the composite request of pumping equipment to delivery pipe wear resistance and toughness.
The utility model also provides the concrete pumping equipment that comprises above-mentioned concrete delivery pipe.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (4)
1. a concrete delivery pipe, is characterized in that, comprises the Clad Steel Plate that is rolled into tubulose, welds at Clad Steel Plate joint (5); Clad Steel Plate comprises inner layer steel plate (4) and outer layer plate (3).
2. concrete delivery pipe according to claim 2, is characterized in that, the material of inner layer steel plate (4) is medium carbon low alloy steel or high-carbon low-alloy steel, and the material of outer layer plate (3) is low carbon steel.
3. concrete delivery pipe according to claim 1 and 2, is characterized in that, is welded with respectively flange (2) at the two ends of tubulose Clad Steel Plate, has been nested with wear-resistant sleeve (1) at flange (2).
4. a concrete pumping equipment, is characterized in that, comprises the concrete delivery pipe described in claim 1 to 4 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420342451.9U CN203948803U (en) | 2014-06-25 | 2014-06-25 | A kind of concrete pumping equipment and concrete delivery pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420342451.9U CN203948803U (en) | 2014-06-25 | 2014-06-25 | A kind of concrete pumping equipment and concrete delivery pipe |
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| Publication Number | Publication Date |
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| CN203948803U true CN203948803U (en) | 2014-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420342451.9U Active CN203948803U (en) | 2014-06-25 | 2014-06-25 | A kind of concrete pumping equipment and concrete delivery pipe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075037A (en) * | 2014-06-25 | 2014-10-01 | 三一汽车制造有限公司 | Concrete pumping device, concrete conveying pipe and manufacturing method of concrete conveying pipe |
| CN105526449A (en) * | 2015-03-12 | 2016-04-27 | 周朝辉 | Two-part or multi-part double-layer type wearproof impact-resistant tube and manufacture method thereof |
| CN112343257A (en) * | 2020-10-20 | 2021-02-09 | 湖南三泰新材料股份有限公司 | High-strength high-toughness corrosion-resistant multilayer composite steel bar and manufacturing method thereof |
-
2014
- 2014-06-25 CN CN201420342451.9U patent/CN203948803U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075037A (en) * | 2014-06-25 | 2014-10-01 | 三一汽车制造有限公司 | Concrete pumping device, concrete conveying pipe and manufacturing method of concrete conveying pipe |
| CN105526449A (en) * | 2015-03-12 | 2016-04-27 | 周朝辉 | Two-part or multi-part double-layer type wearproof impact-resistant tube and manufacture method thereof |
| CN112343257A (en) * | 2020-10-20 | 2021-02-09 | 湖南三泰新材料股份有限公司 | High-strength high-toughness corrosion-resistant multilayer composite steel bar and manufacturing method thereof |
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