CN103604010B - Long cantilever delivery pipe and preparation method thereof - Google Patents
Long cantilever delivery pipe and preparation method thereof Download PDFInfo
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- CN103604010B CN103604010B CN201310593989.7A CN201310593989A CN103604010B CN 103604010 B CN103604010 B CN 103604010B CN 201310593989 A CN201310593989 A CN 201310593989A CN 103604010 B CN103604010 B CN 103604010B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/02—Welded joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
- B23K31/027—Making tubes with soldering or welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/06—Protection of pipes or objects of similar shape against external or internal damage or wear against wear
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
The invention provides a kind of long cantilever delivery pipe and preparation method thereof.The making method of this long cantilever delivery pipe comprises: the cantilever segment delivery pipe that the wear-resistant pipe choosing inwall quenching is made is as cantilever segment delivery pipe to be welded; The welding ends inwall of cantilever segment delivery pipe to be welded snaps hopper, and in solder slot, piles wear-resisting solder; By two sections of cantilever segment delivery pipe docking to be connected, then carry out groove opening butt welding connection.According to the making method of long cantilever delivery pipe of the present invention, the wear-resistant pipe that inwall cannot be adopted the to quench problem as cantilever delivery pipe can be solved in prior art.
Description
Technical field
The present invention relates to long cantilever material transfer equipment, in particular to a kind of long cantilever delivery pipe and preparation method thereof.
Background technique
Along with the fast development of China construction industry, the demand of construction party to the size, length etc. of pile tube shows diversified, and it is more and more longer for result in the concrete delivery pipe general requirement of pile tube manufacturing equipment.And for generally using the pile tube manufacturing equipment of cantilever stringing, cantilever is longer, delivery pipe and concrete quality increase larger, suffered moment of flexure is larger; The increase of moment of flexure, not only make cantalever tube bend quantitative change large, interfere with pipe pile die, affect manufacturing efficiency, also easy bending break, causes production accident.
As shown in accompanying drawing 1 to Fig. 3, the general production model of current pile tube manufacturing equipment is, pipe pile die 50 ' is driven by pipe die transport vehicle, penetrate cantilever delivery pipe 11 ' to work initial point position, pump concrete is started along with dragging pump 40 ', concrete is packed in pipe pile die 50 ' through delivery pipe, and meanwhile, pipe die transport vehicle drives pipe pile die 50 ' and sails out of cantilever delivery pipe 11 ' by given pace along track.
The mode that concrete delivery pipe is arranged as shown in Figure 2, one end supports the fixing non-cantilever delivery pipe 15 ' of pipe clamp 20 ' by two places, non-cantilever delivery pipe 15 ' is connected with cantilever delivery pipe 11 ' bolt again, and many cantilever delivery pipes 11 ' are welded to each other into long tube, finally welds with tail pipe 12 '.As shown in Figure 3, the structural type of tail pipe 12 ' is that angle is opened in straight tube one end, then welds one piece of baffle plate.
Due to the wear-resistant pipe that welding tempering problem can not adopt inwall to quench between each pipeline section of above-mentioned cantilever delivery pipe, the common pipe fitting butt welding of general employing connects, and cause delivery pipe not wear-resisting, working life is low.
Summary of the invention
The present invention aims to provide a kind of long cantilever delivery pipe and preparation method thereof, to solve in prior art the wear-resistant pipe that inwall cannot be adopted the to quench problem as cantilever delivery pipe.
To achieve these goals, according to an aspect of the present invention, provide a kind of long cantilever delivery pipe, comprise multistage cantilever segment, cantilever segment is the wear-resistant pipe of inwall quenching, and the connecting end inwall of two sections of adjacent cantilever segments welds after piling wear-resisting solder.
Further, long cantilever delivery pipe also comprises the tailpipe section of the first end end being arranged on cantilever segment, and the first end inwall of cantilever segment welds after piling wear-resisting solder with the first end inwall of tailpipe section.
Further, the madial wall of the connecting end of cantilever segment and/or tailpipe section is provided with the annular groove placing wear-resisting solder.
Further, the guide portion along upwarping gradually towards outlet end direction is formed on the bottom of the end segment of tailpipe section.
Further, the mouth of pipe of tailpipe section upward.
Further, the end mouth of pipe of tailpipe section is provided with preventing materials accumulation groove away from the side of cantilever segment.
Further, preventing materials accumulation groove is U-type groove or V-type groove.
According to a further aspect in the invention, provide a kind of making method of long cantilever delivery pipe, comprising: the cantilever segment delivery pipe that the wear-resistant pipe choosing inwall quenching is made is as cantilever segment delivery pipe to be welded; The welding ends inwall of cantilever segment delivery pipe to be welded snaps hopper, and in solder slot, piles wear-resisting solder; By two sections of cantilever segment delivery pipe docking to be connected, then carry out groove opening butt welding connection.
Further, the step that the welding ends inwall of cantilever segment delivery pipe to be welded snaps hopper comprises: on the welding ends inwall of cantilever segment delivery pipe to be welded, drive circular groove, and the length of this circular groove is 3 to 4 times of the groove thickness of groove butt welding.
Further, by two sections of cantilever segment delivery pipe docking to be connected, also comprise after then carrying out the step of groove opening butt welding connection: the tailpipe section delivery pipe that the wear-resistant pipe choosing inwall quenching is made is as tailpipe section delivery pipe to be welded; The welding ends inwall of tailpipe section delivery pipe to be welded snaps hopper, and in solder slot, piles wear-resisting solder; Carry out groove opening butt welding after being docked with the welding ends of cantilever segment delivery pipe by the welding ends of tailpipe section delivery pipe to be connected.
Apply technological scheme of the present invention, the making method of long cantilever delivery pipe comprises: the cantilever segment delivery pipe that the wear-resistant pipe choosing inwall quenching is made is as cantilever segment delivery pipe to be welded; The welding ends inwall of cantilever segment delivery pipe to be welded snaps hopper, and in solder slot, piles wear-resisting solder; By two sections of cantilever segment delivery pipe docking to be connected, then carry out groove opening butt welding connection.Pass through said method, when using the wear-resistant pipe of inwall quenching as long cantilever delivery pipe, can by snapping the mode that hopper piles wear-resisting solder on the inwall of cantilever segment delivery pipe to be welded, two sections of cantilever segment delivery pipes are welded together, in the process of welding, wear-resisting fill solder is in the solder slot of welding position, wearing layer is formed to the inwall at the welding position place of cantilever segment delivery pipe, the tempering problem of inwall quench hardened case when therefore can avoid adopting the wear-resistant pipe of inwall quenching to weld as long cantilever delivery pipe, the inwall quenching pipe of high abrasion can be made to substitute common steel tube, thus greatly improve the working life of long cantilever delivery pipe.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation of long cantilever feedway of the prior art;
Fig. 2 shows the mounting structure schematic diagram of the long cantilever delivery pipe according to Fig. 1;
Fig. 3 shows the tail pipe structure schematic diagram of the long cantilever delivery pipe according to Fig. 2;
Fig. 4 shows the structural representation of long cantilever feedway according to an embodiment of the invention;
Fig. 5 shows and removes structural representation after long cantilever delivery pipe according to the long cantilever feedway of the embodiment of Fig. 4;
Fig. 6 shows the partial structurtes schematic diagram at the cantilever segment link position place of long cantilever delivery pipe according to an embodiment of the invention;
Fig. 7 shows the linkage structure schematic diagram of the cantilever segment according to Fig. 6;
What Fig. 8 showed the tailpipe section of the long cantilever delivery pipe of the embodiment according to Fig. 4 partly cuts open structural representation;
Fig. 9 shows the plan structure schematic diagram of the tailpipe section of the embodiment according to Fig. 8;
The A-A that Figure 10 shows the long cantilever feedway of the embodiment according to Fig. 4 to sectional structure schematic diagram; And
The B-B that Figure 11 shows the long cantilever feedway of the embodiment according to Fig. 4 to sectional structure schematic diagram.
Reference character: 10, long cantilever delivery pipe; 20, cantilever support; 30, U-type groove plate; 11, cantilever segment; 12, tailpipe section; 13, annular groove; 14, preventing materials accumulation groove; 15, construction section; 21, H type pallet stand; 22, top type groove; 23, cover plate; 24, briquetting; 31, tail end frid.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
As shown in Fig. 8 to Fig. 9, according to embodiments of the invention, the making method of long cantilever delivery pipe comprises: the cantilever segment delivery pipe that the wear-resistant pipe choosing inwall quenching is made is as cantilever segment delivery pipe to be welded; The welding ends inwall of cantilever segment delivery pipe to be welded snaps hopper, and in solder slot, piles wear-resisting solder; By two sections of cantilever segment delivery pipe docking to be connected, then carry out groove opening butt welding connection.
Pass through said method, when using the wear-resistant pipe of inwall quenching as long cantilever delivery pipe, can by snapping the mode that hopper piles wear-resisting solder on the inwall of cantilever segment delivery pipe to be welded, two sections of cantilever segment delivery pipes are welded together, in the process of welding, wear-resisting fill solder is in the solder slot of welding position, wearing layer is formed to the inwall at the welding position place of cantilever segment delivery pipe, the tempering problem of inwall quench hardened case when therefore can avoid adopting the wear-resistant pipe of inwall quenching to weld as long cantilever delivery pipe, the inwall quenching pipe of high abrasion can be made to substitute common steel tube, thus greatly improve the working life of long cantilever delivery pipe.
The step that the welding ends inwall of cantilever segment delivery pipe to be welded snaps hopper comprises, and the welding ends inwall of cantilever segment delivery pipe to be welded drives circular groove, and the length of this circular groove is 3 to 4 times of the groove thickness of groove butt welding.Circular groove can ensure that cantilever segment delivery pipe can make wear-resisting solder cover welding heat influence area better when welding, form good wear-resistant coating, thus more effectively reduce in welding process the tempering impact that the wear-resistant pipe of inwall quenching causes, improve the welding performance of cantilever segment delivery pipe, ensure the wear-resisting property after the welding of cantilever segment delivery pipe, more effectively extend the working life of long cantilever delivery pipe.The length of circular groove is 3 to 4 times of the groove depth of groove butt welding, more effectively can ensure the wearing layer length that join strength between cantilever segment delivery pipe and wear-resisting solder are formed, thus tempering, to the influence area of wear-resistant pipe, reduces welding tempering to the impact of wear-resistant pipe when ensureing that wear-resisting solder can cover welding better.
By two sections of cantilever segment delivery pipe docking to be connected, then after carrying out the step of groove opening butt welding connection, the making method of long cantilever delivery pipe also comprises: the tailpipe section delivery pipe that the wear-resistant pipe choosing inwall quenching is made is as tailpipe section delivery pipe to be welded, the welding ends inwall of tailpipe section delivery pipe to be welded snaps hopper, and in solder slot, piles wear-resisting solder; Carry out groove opening butt welding after being docked with the welding ends of cantilever segment delivery pipe by the welding ends of tailpipe section delivery pipe to be connected.By this kind of method, complete long cantilever delivery pipe can be formed, thus make whole long cantilever delivery pipe all have preferably wear-resisting property.
As shown in Fig. 4 to Figure 11, according to embodiments of the invention, long cantilever delivery pipe 10 comprises multistage cantilever segment 11, the wear-resistant pipe that cantilever segment 11 quenches for inwall, and the connecting end inwall of two sections of adjacent cantilever segments 11 welds after piling wear-resisting solder.By adopting welded structure after the connecting end inwall of adjacent two sections of cantilever segments 11 piles wear-resisting solder, the wear-resistant pipe can choosing inwall quenching when selecting long cantilever delivery pipe 10 is used as long cantilever delivery pipe 10, and the performance of wear-resistant pipe can not be affected due to welding, therefore effectively can improve the wear-resisting property of long cantilever delivery pipe 10, extend the working life of long cantilever delivery pipe 10.
In conjunction with see shown in Fig. 6 and Fig. 7, cantilever segment 11 can be one-part form or multi-section type, and in the present embodiment, cantilever segment 11 is multi-section type, and the connecting end of two sections of adjacent cantilever segments 11 welds after piling wear-resisting solder.Cantilever delivery pipe majority due to pile tube manufacturing equipment adopts multi-section type, when each section of cantilever delivery pipe connects, because welding tempering can affect the quenching performance of quenching pipe, the mode that inwall therefore can not be adopted to quench is to increase wear resistance and the join strength of each section of cantilever delivery pipe joint, and generally adopt common pipe fitting butt welding to connect, so just cause long cantilever delivery pipe 10 not wear-resisting, working life is low.And adopt the mode of the wear-resisting solder of heap, wear-resisting solder can be filled before welding at the link position place of each cantilever segment 11, and then groove opening butt welding connection is carried out to the delivery pipe of inwall quenching, the wear resistance of the inner tubal wall at the link position place of each cantilever segment 11 just can be ensured by wear-resisting solder, inwall quenching pipe is avoided to weld tempering, thus realize the inwall quenching of high abrasion, ensure quality of connection and the wear-resisting property of long cantilever delivery pipe 10.
Long cantilever delivery pipe also comprises the tailpipe section 12 of the first end end being arranged on cantilever segment 11, and the first end inwall of cantilever segment 11 welds after piling wear-resisting solder with the first end inwall of tailpipe section 12.Certainly, the second end of cantilever segment 11 and the first end of construction section 15 mode of welding after also can adopting and piling wear-resisting solder.
Preferably, the madial wall of the connecting end of cantilever segment 11 and/or tailpipe section 12 is provided with the annular groove 13 placing wear-resisting solder, this annular groove 13 can provide holding space for wear-resisting solder.When carrying out welding preparation to each pipeline section, first after pipe fitting one end is the annular groove 13 of t along tube wall turning one segment length for m thickness, imposing wear-resisting solder and annular groove 13 is filled up.The length m of the annular groove 13 of cantilever segment 11 is herein preferably 3 to 4 times of the groove depth of groove opening butt welding.After welding completes, this annular groove 13 can ensure that solder does not protrude from inner tubal wall, thus ensure the smoothness at each section of link position place, solder-bump is avoided to bring larger obstruction to mass transport, reduce material by friction suffered during each pipeline section link position, improve the transfer efficiency of long cantilever delivery pipe 10.
Preferably, the guide portion along upwarping gradually towards outlet end direction is formed on the bottom of the end segment of tailpipe section 12.In the present embodiment, this guide portion is the bend pipe bent upward.This guide portion also directly can carry out processing acquisition by internal pipe, and now the overall structure of tailpipe section 12 need not bend.Cantilever segment 11 herein and tailpipe section 12 can be formed in one structure, also can shaping respectively after be fixed together.
For pile tube manufacturing equipment, when producing pile tube, need long cantilever delivery pipe 10 to stretch in pipe pile die, then delivering concrete carries out shaping.In the process of long cantilever delivery pipe 10 delivering concrete, long cantilever delivery pipe 10 is under own wt and concrete Action of Gravity Field, can occur bending and deformation, the tailpipe section 12 of long cantilever delivery pipe 10 can interfere with the wire basket in pipe pile die, affects pile tube shaping.And the present embodiment is set to the mode of the bend pipe bent upward by the end of the tailpipe section 12 by long cantilever delivery pipe 10, make long cantilever delivery pipe 10 when occuring bending and deformation, the end of tailpipe section 12 also upwards lifts, and can not interfere with wire basket owing to being bent downwardly, therefore can ensure the normally shaping of pile tube.
In addition, in existing pile tube manufacturing equipment, generally, due to tailpipe section 12 bending sagging of long cantilever delivery pipe 10, the throughput direction of the concrete materials that tailpipe section 12 is carried cannot ensure, when concrete materials tailpipe section 12 carried is delivered to the entrance of next tool pipe pile die, sagging due to the outlet port mouth of pipe, can interfere with the entrance of next tool pipe pile die, therefore cannot smoothly by the entrance of next tool pipe pile die, one group of long cantilever delivery pipe 10 is merely able to the mass transport requirement of a satisfied pipe pile die, and efficiency is lower.And after adopting the scheme of the application, climbing function can be realized by the bend pipe be bent upwards, long cantilever delivery pipe 10 is misplaced with the interruption-forming that enters of next tool pipe pile die, thus when avoiding material to enter the entrance of next tool pipe pile die, entrance is impacted, because the end of tailpipe section 12 upwards lifts, therefore also can ensure that material can enter in next pipe pile die smoothly, the mass transport needs of a long cantilever delivery pipe 10 to multiple pipe pile die can be realized by this kind of mode, the high efficiency production of " a pipe multimode " can be realized.
For the ease of installation and the setting of long cantilever delivery pipe 10, long cantilever delivery pipe 10 also includes construction section 15, when long cantilever delivery pipe 10 is installed, construction section 15 is arranged on position location, cantilever segment 11 and all unsettled setting of tailpipe section 12.
The mouth of pipe of tailpipe section 12 upward.In concrete delivery service, when spraying filler from tailpipe section 12, because material falls after mouth of pipe ejection upward, in the process of filler, the degree of compaction of material body can be improved, improve the quality that pile tube is shaping.
Preferably, the end of tailpipe section 12 is the arc section of lateral bend upward.Arc structure arranges and can reduce concrete conveyance direction and to change brought impact force, reduces the friction to delivery pipe, and effectively can control the orientation of blanking.
Preferably, the end orifice plane of tailpipe section 12 is horizontal plane, can ensure the uniformity that material sprays from the mouth of pipe, ensures degree of compaction and the uniformity of material body filling in pipe pile die.
In conjunction with see shown in Fig. 8 and Fig. 9, the end mouth of pipe of tailpipe section 12 can arrange preventing materials accumulation groove 14 away from the side of cantilever segment 11, and this preventing materials accumulation groove 14 can alleviate the shake of tailpipe section 12, and reduces the buildup of tailpipe section.Preferably, preventing materials accumulation groove 14 is U-type groove or V-type groove.
In conjunction with see shown in Fig. 4, Fig. 5 and Figure 10 and Figure 11, according to embodiments of the invention, long cantilever feedway comprises cantilever support 20 and long cantilever delivery pipe 10, long cantilever delivery pipe 10 is above-mentioned long cantilever delivery pipe 10, the construction section 15 of long cantilever delivery pipe 10 is arranged on cantilever support 20, and the second end of the cantilever segment 11 of long cantilever delivery pipe 10 is connected on construction section 15.
Preferably, be provided with U-type groove plate 30 between cantilever support 20 and long cantilever delivery pipe 10, U-type groove plate 30 extends along the length direction of long cantilever delivery pipe 10, and long cantilever delivery pipe 10 is arranged in U-type groove plate 30.The first end of U-type groove plate 30 is fixedly installed on cantilever support 20, and the second end extends along the length direction of long cantilever delivery pipe 10, thus is formed the cantilever segment 11 of long cantilever delivery pipe 10 and tailpipe section 12 and support.
The base plate that U-type groove plate 30 comprises two side plates be oppositely arranged and is connected between two side plates, for U-type groove plate 30, in theory, the side plate height h of U-type groove the plate 30 and ratio h/b of baseplate width b is larger, the bending resistance of U-type groove plate 30 is better, therefore, in order to maximize the bending resistance of U-type groove plate 30, when the installation not affecting long cantilever delivery pipe 10 is arranged, the side plate height h of U-type groove plate 30 should be concordant with the top of long cantilever delivery pipe 10, or a little less than the top of long cantilever delivery pipe 10, the bending resistance of U-type groove plate 30 can better be played a role.
The structural characteristics of U-type groove plate 30 makes U-type groove plate 30 have high bending resistance, therefore by arranging U-type groove plate 30 and long cantilever delivery pipe 10 being placed on the mode in U-type groove plate 30, long cantilever delivery pipe 10 curved power suffered in material conveying process can be born by U-type groove plate 30, reduce the distortion of long cantilever delivery pipe 10, avoid and rely on the thickness of long cantilever delivery pipe 10 to bear curved power, the thickness of long cantilever delivery pipe 10 can be reduced simultaneously, originally the thickness bearing bending resistance just can free, be used for continuing to lengthen the pipe range of delivering concrete, therefore the cost of production of long cantilever delivery pipe 10 can effectively be reduced, improve the utilization ratio of long cantilever delivery pipe 10.In addition, in the process that long cantilever delivery pipe 10 uses, even if long cantilever delivery pipe 10 causes tube wall thinning by material wearing and tearing, because the unbending of long cantilever delivery pipe 10 is born by U-type groove plate 30, therefore long cantilever delivery pipe 10 can not owing to bearing flecition power and the fracture that occurs bending and deformation, may wear to relative to long cantilever delivery pipe in prior art 10 to a certain degree will owing to bearing the excessive and phenomenon of scrapping of flecition power, the scheme of obvious the application can use long cantilever delivery pipe 10 substantially, this obviously substantially increases utilization ratio and the working life of long cantilever delivery pipe 10.
Preferably, U-type groove plate 30 is fixedly installed tail end frid 31 away from cantilever support 20 one end, and the height of tail end frid 31 successively decreases along the conveying direction of long cantilever delivery pipe 10.Because the flecition produced in material conveying process is advocated the position of the material inlet that will concentrate on long cantilever delivery pipe 10, and the flecition power suffered by the position of the material outlet of long cantilever delivery pipe 10 obviously reduces, based on this, the tail end frid 31 that rational height reduces gradually, the difference of the active force that just can bear according to U-type groove plate 30 and adopt more reasonably structure, the weight of U-type groove plate 30 can also be alleviated simultaneously, reduce the carrying burden of U-type groove plate 30.
Cantilever support 20 comprises the H type pallet stand 21 that the length direction along long cantilever delivery pipe 10 extends, and long cantilever delivery pipe 10 is arranged in the top type groove 22 of H type pallet stand 21.In the present embodiment, U-type groove plate 30 is arranged in the top type groove 22 of H type pallet stand 21, and long cantilever delivery pipe 10 is arranged in the groove of U-type groove plate 30.The fixed end of U-type groove plate 30 forms good location by H type pallet stand 21, and the cantilever segment of U-type groove plate 30 forms buckling preventing support effect to long cantilever delivery pipe 10 under the supporting effect of fixed end.
H type pallet stand 21 has firm supporting structure and good rigidity, therefore good support can be formed to long cantilever delivery pipe 10, match with U-type groove plate 30, the bracket group possessing and bear separately cantilever moment of flexure ability can be formed, while ensureing stable support, improve the bending resistance of long cantilever delivery pipe 10 further.At the two ends of H type pallet stand 21, can also supporting base be set, thus it is fixing to carry out installation to H type pallet stand 21 better.
The top of H type pallet stand 21 is fixedly installed cover plate 23, described cover plate 23 is pressed in described long cantilever delivery pipe 10, and described cover plate 23 comprises the briquetting 24 stretched out towards described long cantilever delivery pipe 10, described briquetting 24 has the lid pressure surface matched with the outer surface of described long cantilever delivery pipe 10, this lid pressure surface can ensure that cover plate 23 pairs of long cantilever delivery pipe 10 form good location, prevents long cantilever delivery pipe 10 from moving in material conveying process and affecting the mass transport performance of long cantilever delivery pipe 10.
H type pallet stand 21, U-type groove plate 30 and long cantilever delivery pipe 10 are all independent operable parts, therefore, when damaging appears in a certain parts, can change these parts in time, and the use of miscellaneous part can not be affected, therefore installing/dismounting is convenient, and cost is also more cheap.
As can be seen from the above description, the above embodiments of the present invention achieve following technique effect:
The welded structure of 1, novel prevented welding tempering, solves the problem of inwall quenching pipe welding tempering, makes the inwall of high abrasion quenching straight tube replace common steel tube and becomes a reality, improve the working life of long cantilever delivery pipe.
2, tail pipe adopts arc-shaped structure, solves delivery pipe cantilever sag bent, causes the wire basket in tail pipe end and pipe pile die to conflict the problem of interfering; The v-notch that tail pipe end is opened, can alleviate the shake of tail pipe and reduce the buildup of tail pipe end; Tail pipe arc-shaped structure, also makes to have climbing function, makes pile tube manufacturing equipment can realize the high efficiency production of " a pipe multimode ".
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a long cantilever delivery pipe, it is characterized in that, comprise multistage cantilever segment (11), the wear-resistant pipe that described cantilever segment (11) quenches for inwall, the connecting end inwall of two sections of adjacent described cantilever segments (11) has annular groove (13), welds in described annular groove (13) after the wear-resisting solder of heap.
2. long cantilever delivery pipe according to claim 1, it is characterized in that, described long cantilever delivery pipe also comprises the tailpipe section (12) of the first end end being arranged on described cantilever segment (11), and the first end inwall of described cantilever segment (11) welds after piling wear-resisting solder with the first end inwall of described tailpipe section (12).
3. long cantilever delivery pipe according to claim 2, is characterized in that, the madial wall of the connecting end of described cantilever segment (11) and described tailpipe section (12) is provided with the annular groove (13) placing described wear-resisting solder.
4. long cantilever delivery pipe according to claim 2, is characterized in that, the guide portion along upwarping gradually towards outlet end direction is formed on the bottom of the end segment of described tailpipe section (12).
5. long cantilever delivery pipe according to claim 2, is characterized in that, the mouth of pipe of described tailpipe section (12) upward.
6. the long cantilever delivery pipe according to any one of claim 2 to 5, is characterized in that, the end mouth of pipe of described tailpipe section (12) is provided with preventing materials accumulation groove (14) away from the side of described cantilever segment (11).
7. long cantilever delivery pipe according to claim 6, is characterized in that, described preventing materials accumulation groove (14) is U-type groove or V-type groove.
8. a making method for long cantilever delivery pipe, is characterized in that, comprising:
The cantilever segment delivery pipe that the wear-resistant pipe choosing inwall quenching is made is as cantilever segment delivery pipe to be welded;
The welding ends inwall of cantilever segment delivery pipe to be welded snaps hopper, and in solder slot, piles wear-resisting solder;
By two sections of cantilever segment delivery pipe docking to be connected, then carry out groove opening butt welding connection.
9. the making method of long cantilever delivery pipe according to claim 8, is characterized in that, described step of snapping hopper on the welding ends inwall of cantilever segment delivery pipe to be welded comprises,
The welding ends inwall of cantilever segment delivery pipe to be welded drives circular groove, and the length of this circular groove is 3 to 4 times of the groove thickness of groove butt welding.
10. the making method of long cantilever delivery pipe according to claim 8, is characterized in that, described by two sections of cantilever segment delivery pipe docking to be connected, also comprises after then carrying out the step of groove opening butt welding connection:
Choose the tailpipe section delivery pipe made of wear-resistant pipe of inwall quenching as tailpipe section delivery pipe to be welded,
The welding ends inwall of tailpipe section delivery pipe to be welded snaps hopper, and in solder slot, piles wear-resisting solder;
Carry out groove opening butt welding after being docked with the welding ends of cantilever segment delivery pipe by the welding ends of tailpipe section delivery pipe to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310593989.7A CN103604010B (en) | 2013-11-21 | 2013-11-21 | Long cantilever delivery pipe and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310593989.7A CN103604010B (en) | 2013-11-21 | 2013-11-21 | Long cantilever delivery pipe and preparation method thereof |
Publications (2)
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| CN103604010A CN103604010A (en) | 2014-02-26 |
| CN103604010B true CN103604010B (en) | 2015-11-04 |
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| EP1371891A1 (en) * | 2002-06-12 | 2003-12-17 | Formar S.A. | Welded joint for metal pipes |
| CN1851007A (en) * | 2006-05-30 | 2006-10-25 | 三一重工股份有限公司 | Concrete conveying pipe production process |
| CN101435265A (en) * | 2008-11-21 | 2009-05-20 | 中国建筑第八工程局有限公司 | Binghaw material conveying pipe apparatus and method for pumping, jacking and placing by the same |
| CN102554484A (en) * | 2012-01-11 | 2012-07-11 | 阮继成 | Metal pipe welding method and metal pipe welding assembly |
| CN202510851U (en) * | 2012-03-29 | 2012-10-31 | 济宁市东成源工程机械有限公司 | Conveying pipe for concrete pump truck |
| CN203545150U (en) * | 2013-11-21 | 2014-04-16 | 中联重科股份有限公司 | Long cantilever delivery pipe and long cantilever delivery device comprising long cantilever delivery pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1371891A1 (en) * | 2002-06-12 | 2003-12-17 | Formar S.A. | Welded joint for metal pipes |
| CN1851007A (en) * | 2006-05-30 | 2006-10-25 | 三一重工股份有限公司 | Concrete conveying pipe production process |
| CN101435265A (en) * | 2008-11-21 | 2009-05-20 | 中国建筑第八工程局有限公司 | Binghaw material conveying pipe apparatus and method for pumping, jacking and placing by the same |
| CN102554484A (en) * | 2012-01-11 | 2012-07-11 | 阮继成 | Metal pipe welding method and metal pipe welding assembly |
| CN202510851U (en) * | 2012-03-29 | 2012-10-31 | 济宁市东成源工程机械有限公司 | Conveying pipe for concrete pump truck |
| CN203545150U (en) * | 2013-11-21 | 2014-04-16 | 中联重科股份有限公司 | Long cantilever delivery pipe and long cantilever delivery device comprising long cantilever delivery pipe |
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| CN103604010A (en) | 2014-02-26 |
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