CN101625060A - Conveying bent pipe, concrete conveyer and manufacturing method of same - Google Patents
Conveying bent pipe, concrete conveyer and manufacturing method of same Download PDFInfo
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- CN101625060A CN101625060A CN200910159056A CN200910159056A CN101625060A CN 101625060 A CN101625060 A CN 101625060A CN 200910159056 A CN200910159056 A CN 200910159056A CN 200910159056 A CN200910159056 A CN 200910159056A CN 101625060 A CN101625060 A CN 101625060A
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- pipe
- transporting elbow
- outer tube
- tube
- transporting
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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
- F16L43/00—Bends; Siphons
- F16L43/001—Bends; Siphons made of metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/32—Conveying concrete, e.g. for distributing same at building sites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/52—Adaptations of pipes or tubes
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention discloses a conveying bent pipe, a concrete conveyer and a manufacturing method of the conveying bent pipe. The disclosed sequentially comprises an inner pipe, an outer pipe and a filling layer, and the outer pipe at least comprises two supporting pipes which are sequentially connected; the outer pipe of the conveying bent pipe has a split type structure and comprises two or more than two supporting pipes, thereby reducing the cost of the conveying bent pipe under the condition that the wearing resistance, the strength, the high toughness and the impact resistance are ensured. In an optimized technical scheme, the inner pipe and outer pipe are fixed by an adhesive layer to transfer the acting force of the inner pipe to the outer pipe, the supporting and protecting function of the inner pipe by the outer pipe is ensured, and safety of the conveying bent pipe can be increased. Because the inner pipe and the outer pipe can be mutually positioned by matching with an inner convex body and an inner notch, the manufacturing method of the conveying bent pipe not only can simplify a manufacturing technology in a conveying bent pipe manufacturing process, but also can reduce auxiliary mechanisms and reduce the manufacturing cost of the conveying bent pipe.
Description
Technical field
The present invention relates to a kind of wear-resisting withstand voltage delivery pipe technology, particularly a kind of transporting elbow also relates to a kind of concrete conveyer with this transporting elbow, and a kind of making method of transporting elbow.
Background technique
At present, when carrying out constructions work, generally transmission and concrete transmission is arrived predetermined place, with the operation of implementing to be scheduled to by suitable engineering machinery.In the delivering concrete process, concrete mud suitably arrives predetermined place by delivery pipe under the pressure effect, to carry out concrete placement or perfusion operation away from the position of mixing plant.
In the delivering concrete process, on the one hand, the inwall of delivery pipe will bear persistency erosion and the wearing and tearing that produce when concrete mud flows; On the other hand, delivery pipe will bear the pressure effect of concrete mud, and to higher position or than the distant place delivering concrete time, delivery pipe will bear higher pressure effect.Concrete mud requires the inwall of delivery pipe to have higher hardness to the erosion and the wearing and tearing of delivery pipe inwall; The pressure effect requires delivery pipe to have high toughness and impact resistance on the whole.
In order to satisfy above-mentioned requirements, current, generally be combined to form delivery pipe with interior pipe and outer tube.Interior pipe can obtain higher hardness by modes such as hot working, to improve the wear-resisting property of delivery pipe inwall; But when obtaining higher hardness, the toughness of interior pipe will reduce.For pipe embrittlement under the high pressure effect in preventing, also at the suitable outer tube of interior pipe peripheral hardware; The metallic material of outer effective high strength, high tenacity is made, and outside the pipe, to bear the pressure effect of concrete mud, bears compression shock in being coated on, and manages embrittlement in preventing, improves the bulk strength and the impact resistance of delivery pipe simultaneously.Can guarantee that by interior pipe and outer tube combination delivery pipe has higher bulk strength and stronger wear-resisting property, to satisfy above-mentioned requirements.
Please refer to Fig. 1, this figure is the structural representation of Chinese patent literature CN 101107187 disclosed a kind of bend pipes.Pipe 110, outer tube 120 in disclosed bend pipe comprises, form the annular space of a sealing between interior pipe 110 and the outer tube 120, be filled with concrete in this annular space, form packing layer 130, in pipe 110 make by high-abrasive material, have higher hardness, have stronger wear resistance to guarantee elbow internal wall; Outer tube 120 has high toughness and intensity, is used to strengthen bend pipe integral intensity and toughness, improves the impact resistance of bend pipe.The needs of delivering concrete are satisfied in interior pipe 110 and outer tube 120 combinations.Simultaneously, this patent documentation also discloses a kind of method of making bend pipe.Disclosed method is: with interior pipe 110 and outer tube 120 combinations, form pipe shaft; Then, with feeling relieved assisting agency respectively in distolateral importing pipe shaft, pipe 110 and outer tube 120 are fixing in making, and interior pipe 110 and outer tube 120 are kept with one heart, then, by at the inside fill concrete in the annular space of sealing between pipe 110 and the outer tube 120 of the filling port 111 of interior pipe 110, form packed layer 130 with filling device.
Though above-mentioned bend pipe can satisfy the requirement of delivering concrete, also has following defective:
1, for the needs of fabrication and installation and delivering concrete, the interior pipe 110 of above-mentioned bend pipe and outer tube 120 longitudinal cross-sections are the arc-shaped structure of standard; For forming suitable annular space in making between pipe 110 and the outer tube 120, to form packed layer 130, the outer surface of pipe 110 and the internal surface of outer tube 120 have high dimension precision in requiring; This requirement can increase the manufacture difficulty of bend pipe on the one hand, can increase the fabricating cost of bend pipe on the other hand.
2, equally for the needs of fabrication and installation, also for concrete mud is flowed more swimmingly, the longitudinal cross-section of interior pipe 110 internal surfaces and outer surface is circular arc, and then the wall thickness of pipe each several part equates in needing to keep.The wear extent of interior pipe 110 each several parts is also inequality, therefore but in use,, use a period of time, when interior pipe 110 outer arc parts were worn out, its inner arc part also can be left very thick high-abrasive material, thereby can't make full use of the high-abrasive material of pipe in making, cause the waste of high-abrasive material; Because the high-abrasive material cost of the interior pipe of making is higher, this just causes the user cost of bend pipe to increase further again.
3, the packed layer 130 between interior pipe 110 and the outer tube 120 only can internally be managed 110 and played a supporting role, and packed layer 130 itself does not have wear resistance or wear resistance is very low; In using process, owing to interior pipe 110 wearing and tearing are inhomogeneous make in the outer arc part of pipe 110 when worn out, under concrete mud impacted, the inner arc part will break away from packed layer 130, thereby falls in the bend pipe, causes the obstruction of bend pipe, influences concrete conveying; When the high-pressure delivery concrete, the obstruction of bend pipe also can cause serious accident, and therefore, also there is more serious potential safety hazard in above-mentioned bend pipe.
4, fill concrete forms packed layer 130 in the annular space between interior pipe 110 and outer tube 120, packed layer 130 weight are bigger, thereby can increase the weight of concrete conveying pipe, increase the difficulty that delivery pipe is arranged easily, also can increase the load capacity of concrete arm or boom.
In addition, the preparation process of above-mentioned bend pipe need have the centering assisting agency of expansion function with outer tube 120 and interior pipe 110 location, need specific injecting mechanism with in the filling port 111 injection outer tubes 120 and the annular space between the interior pipe 110 of concrete by interior pipe 110, form packed layer 130, therefore, there is the installation process complexity, the defective that fabricating cost is higher.
Summary of the invention
At above-mentioned defective, aspect thing, first purpose of the present invention is, a kind of transporting elbow is provided, and with the dimension precision requirement of reduction transporting elbow, and makes things convenient for transporting elbow processing, reduces the fabricating cost of transporting elbow.
Second purpose is, a kind of transporting elbow that makes full use of high-abrasive material is provided, and simultaneously, prolongs the working life of transporting elbow.
The 3rd purpose is, the transporting elbow that pipe part comes off in a kind of can the preventing is provided, and to keep the smooth and easy of transporting elbow pipeline, improves the Safety performance of transporting elbow.
The purpose of the present invention aspect technological process is, a kind of method of making transporting elbow is provided, and to simplify the preparation process of transporting elbow, reduces the fabricating cost of transporting elbow.
In order to realize above-mentioned first purpose, the invention provides a kind of transporting elbow, this transporting elbow comprise interior pipe, outer tube and in described packed layer between pipe and the outer tube, it is characterized in that described outer tube comprises the support tube that two orders are joined at least.
Preferably, described support tube is fixed by welding in together.
Preferably, described outer tube end also have radially-protruding in convex body; Described inner tube portion has radially recessed inner recess, described in convex body match with described inner recess.
Preferably, described outer tube has hole for injecting glue, and described hole for injecting glue runs through outer tube wall; Described packed layer is the adhesive layer that is formed by binder.
Preferably, the internal surface of described outer tube has the water conservancy diversion groove.
Optionally, the outer surface of described interior pipe has the water conservancy diversion groove.
Preferably, described water conservancy diversion groove is with spiral extension.
Preferably, described adhesive layer maximum ga(u)ge is less than 3mm.
Preferably, described hole for injecting glue is positioned at the outermost of described outer tube side.
In order to realize above-mentioned second purpose simultaneously, in the transporting elbow provided by the invention, the pipe thickness of the inner arc part of interior pipe is less than the pipe thickness of the outer arc part of interior pipe, and perhaps from pipe center line inboard is to the outside of this center line in described, the thickness of described inner pipe wall increases gradually.
Preferably, the thickness at the outer arc part two end part of described interior pipe is less than the thickness of outer arc part intermediate portion; Perhaps, the thickness of the outer arc of described interior pipe part increases from two end part to the intermediate portion gradually.
In order to realize the 3rd purpose of the present invention, the invention provides a kind of concrete conveyer, comprise delivery pipe, described delivery pipe comprises conveying straight tube and the transporting elbow that joins, described transporting elbow is above-mentioned any transporting elbow.
In order to realize the purpose of technological process of the present invention aspect, the invention provides a kind of making method of transporting elbow, this method may further comprise the steps:
Support tube is enclosed within outside the interior pipe;
The support tube welding is fixing;
The interior convex body of outer tube is matched with the inner recess of interior pipe, make outer tube and interior pipe fixed to one another, form annular space;
In described annular space, inject binder by hole for injecting glue, form adhesive layer.
Compared with prior art, the outer tube of transporting elbow provided by the invention is a split-type structural, comprises the support tube more than two or two.On the one hand, this technological scheme can reduce the required precision to the support tube fitted position under the prerequisite that keeps the transporting elbow assembly performance; On the other hand, because the internal surface of each support tube is all less than the internal surface of integrated type outer tube, less internal surface also can facilitate for the fabrication and processing of support tube.Because above-mentioned two aspects, technological scheme provided by the invention can satisfy under the prerequisite of actual demand guaranteeing wear resistance, intensity, high tenacity and shock-resistant, reduces the fabricating cost of transporting elbow.
In further technological scheme, support tube is fixed together by welding; This can guarantee the intensity of outer tube, to guarantee the bulk strength of transporting elbow.
In further technological scheme,, manage in realizing and outer tube fixed to one another by cooperating of interior convex body and interior concave volume; The installation of pipe and outer tube when mounted, did not need other positioning auxiliary mechanism in this technological scheme can make things convenient for, and can reduce and make the required supplementary equipment of transporting elbow, when simplifying the transporting elbow preparation process, reduced the fabricating cost of transporting elbow.
In further technological scheme, the adhesive layer that is formed by binder is as packed layer, in this not only can transmit pipe to the active force of outer tube, the support and the protective action of the internal pipe of assurance outer tube; But also can improve the Safety performance of transporting elbow.The reason that improves the transporting elbow Safety performance is: because adhesive layer has adhesive property and anti-shear performance; In use, when the wearing and tearing of interior tubular portion, adhesive layer can be maintained fixed remainder and outer tube, avoids keeping delivery pipe unobstructed, the explosion that minimizing causes because of obstruction, the Safety performance of raising transporting elbow because of falling the obstruction of the delivery pipe that piece causes.Hole for injecting glue is arranged on the described outer tube, can makes things convenient for the injection of binder, and then make things convenient for the making of transporting elbow,, can guarantee the intensity of outer tube, and then guarantee the bulk strength of transporting elbow because the aperture of the hole for injecting glue of injection binder is less.
In further technological scheme, pipe internal surface is established the water conservancy diversion groove outside, can guarantee that binder flows smoothly in the annular space of outer tube and the formation of interior pipe, can guarantee that binder is full of the full annular space better on the one hand, can guarantee the uniformity of adhesive layer on the other hand, guarantee the supporting of the internal pipe of outer tube and the realization of protective function, guarantee the transporting elbow integral intensity; In the further again technological scheme, can also establish suitable water conservancy diversion groove, to promote flowing of binder further at inner tube outer surface; Can also make the water conservancy diversion groove with helical in inner tube outer surface and the extension of outer pipe internal surface, binder is flowed at ring Zhou Fangxiang, realize the even layout on the ring Zhou Fangxiang, but also can make adhesive layer vertically have uniformity vertically realizing flowing of binder.
In technological scheme further, by the combination of above-mentioned technical characteristics, obtain the thinner transporting elbow of adhesive layer, the thickness of adhesive layer maximum is less than 3mm; This technological scheme can reduce the weight of transporting elbow on the one hand, makes things convenient for the layout of concrete conveying pipe, can also reduce the overall size of transporting elbow on the other hand, makes things convenient for the layout of concrete delivery pipe; The combination of this two aspect can be facilitating of concrete construction operation with transmission and concrete transmission to farther place and eminence more.
Because, middle external tube of the present invention comprises plural support tube, therefore, on further technological scheme, can be set to the structure that the wall thickness of each several part does not wait according to the interior pipe of the wear law of interior pipe, the equivalent life of pipe design in realizing, the high-abrasive material of pipe in this technological scheme can make full use of on the one hand and make, reduce the waste of high-abrasive material, can prolong the working life of transporting elbow on the other hand, the combination of this two aspect can reduce the fabricating cost and the user cost of transporting elbow significantly.
Providing on the basis of above-mentioned transporting elbow, the concrete conveyer with above-mentioned transporting elbow that provides also has corresponding technique effect.
The making method of transporting elbow provided by the invention because outer tube comprises plural support tube, therefore, can be enclosed within support tube outside the interior pipe easily; And because interior pipe can not only can be simplified preparation process by the cooperate location of realizing each other of interior convex body with inner recess with outer tube when making transporting elbow, can also reduce Aided Machine, reduce the fabricating cost of transporting elbow.
Description of drawings
Fig. 1 is the structural representation of Chinese patent literature CN 101107187 disclosed a kind of bend pipes;
Fig. 2 is the sectional structure schematic representation of the transporting elbow that provides of the embodiment of the invention one;
Fig. 3 is the A-A sectional structure schematic representation among Fig. 2, and for the sake of clarity, this figure has omitted hatching;
I-I part enlarged view among Fig. 4 Fig. 2 the figure shows the sectional structure of transporting elbow one end in the embodiment of the invention one;
Fig. 5 be B among Fig. 4 to view, the figure shows a kind of structural representation of transporting elbow end face;
Fig. 6 shows the another kind of structural representation of transporting elbow end face;
Fig. 7 is the II-II part enlarged view among Fig. 2;
Fig. 8 is the sectional structure schematic representation of support tube;
Fig. 9 is the III-III part enlarged view among Fig. 2;
Figure 10 is the flow chart of the making method of transporting elbow provided by the invention.
Embodiment
Describe the present invention below in conjunction with accompanying drawing, the description of this part only is exemplary and explanatory, should any restriction not arranged to protection scope of the present invention.
For the convenience of describing, in the presents, be reference plane with plane by the transporting elbow center line, the reference plane both sides are the both sides of transporting elbow; With cylindrical curved surface vertical with reference plane and by the transporting elbow center line is with reference to curved surface, is the inner arc part with reference to the interior tubular portion in the curved surface, and the interior tubular portion outer with reference to curved surface is the outer arc part.
Please refer to Fig. 2, this figure is the sectional structure schematic representation of the transporting elbow that provides of the embodiment of the invention one.Pipe 200, adhesive layer 300 and outer tube 400 in the transporting elbow that embodiment one provides comprises; Interior pipe 200 has high hardness, high wear resistance, can make by high-abrasive materials such as alloy or potteries, described adhesive layer 300 is between the outer tube 400 of interior pipe 200, form the packed layer of transporting elbow, outer tube 400 comprises two support tubes 410, and support tube 410 is made by having high tenacity, high strength, impact-resistant material.Two support tube 410 H places in the drawings connect, and are fixed by welding in together; Be appreciated that the heat selecting suitable welding manner to reduce or avoid welding generation internally pipe 200 hardness have a negative impact, with guarantee low in the wear-resisting property of pipe 200.In this example, two support tubes 410 also are symmetric arrangement, in the intermediate portion of transporting elbow butt joint and fixing.
Among the embodiment one, the outer tube 400 of transporting elbow comprises two support tube 410, therefore, when mounted, outside the pipe 200, forms outer tube 400 again in can at an easy rate support tube 410 being enclosed within, and realizes the making of transporting elbow; Because two support tubes 410 can be in two ends are enclosed within respectively outside the pipe 200, therefore, the overall size of the intermediate portion of the outer surface of interior pipe 200 can be greatly, can be not parallel with its internal surface, so that interior pipe 200 each several part tube walls have different-thickness, with pipe 200 wear laws in meeting, the equivalent life design of pipe 200 in realizing.
As shown in Figure 3, this figure is the A-A sectional structure schematic representation among Fig. 2, and for the sake of clarity, this figure has omitted hatching.In the minimum thickness of pipe 200 inner arc part 220 tube walls be H1, the maximum ga(u)ge of outer arc part 210 tube walls is H2, H2＞H1 wherein, in this example, H2=2H1.Optimized technical scheme is: the transition portion between the thickness of the thinnest part of inner arc part 220 and outer arc part 210, the thickness of interior pipe 200 tube walls increases gradually, promptly from managing the outside of 200 center line inboards to this center line in described, the thickness of pipe 200 tube walls increases gradually in making.The meaning of this technological scheme is: when being flowing in by transporting elbow owing to concrete mud, the change meeting of flow direction causes bigger impact to the outer arc part 210 of transporting elbow, and outer arc part 210 rates of wear of interior pipe 200 are much larger than the rate of wear of inner arc part 220; Make outer arc part 210 thickness greater than inner arc part 220 thickness, can realize the equivalent life design of outer arc part 210 and inner arc part 220, thereby can maximally utilise anti-abrasive material, more anti-abrasive material is arranged in the position faster of wearing and tearing; To the outside of this center line, the thickness of pipe 200 tube walls increases gradually in making from pipe 200 center line inboards in described, and the pipe thickness of pipe 200 meets the requirement of wear law more in can making.Same principle, also there is corresponding difference in the change of concrete mud flow direction to the impact at outer arc part 210 two end part with to the impact of intermediate portion, and then cause the rate of wear at two end part also different with the rate of wear of intermediate portion, therefore, can be set to different thickness with the thickness of intermediate portion in outer arc part 210 two end part; Please refer to shown in Figure 2ly, optimized technical scheme is: from two end part to the intermediate portion, the thickness of outer arc part 210 tube walls increases gradually.Be appreciated that those skilled in the art can be according to actual needs, the appropriate location of inner arc part 220 and outer arc part 210 is designed to suitable thickness, pipe 200 adapts to and carries the concrete needs of different qualities in just can making.The equivalent life design of above-mentioned two aspects can keep making full use of the high-abrasive material of pipe in making under the constant situation of wear-resisting transporting elbow weight,, reduce the waste of high-abrasive material, the working life of improving wear-resisting transporting elbow significantly; Proof is identical in weight in one embodiment, under the identical situation of high-abrasive material, have the aforementioned tube wall thickness not the working life of isostructural transporting elbow be bend pipe working life in the prior art 2-3 doubly.
The assembling of transporting elbow for convenience, the transporting elbow among the embodiment one also is provided with positioning means, and the concentricity with pipe 200 and outer tube 400 in guaranteeing prevents the two dislocation.As shown in Figure 4, this figure is the I-I part enlarged view among Fig. 2, the figure shows the sectional structure of transporting elbow one end in the embodiment of the invention one.Among the embodiment one, outer tube 400 ends have radially-protruding interior convex body 401; Interior pipe 200 ends have radially recessed inner recess (among the figure, inner recess overlaps with interior convex body 401, does not illustrate with mark), in outer tube 400 is enclosed within the pipe 200 after, interior convex body 401 matches with described inner recess, thereby realizes the fixed to one another of outer tube 400 and interior pipe 200; Be appreciated that the end face that can make convex body 401 matches with the bottom surface and the side of inner recess respectively with inboard, with realize simultaneously outer tube 400 and interior pipe 200 radially with the center line direction on the location.Like this, when the assembling transporting elbow, just do not need the assisting agency that feels relieved, can guarantee the concentricity of outer tube 400 and interior pipe 200 yet, prevent dislocation; Therefore, the transporting elbow of this structure has the characteristics easily of installing, and not only can simplify preparation process, reduces cost, and can also improve the manufacturing efficiency of transporting elbow.Convex body 401 can have multiple mode with the concrete fit system of inner recess in being appreciated that; Concrete fit system can be selected according to actual needs.
A kind of mode is that outer tube 400 comprises a plurality of interior convex bodys 401, and is interrupted mutually.As shown in Figure 5, Fig. 5 be B among Fig. 4 to view, the figure shows a kind of structural representation of transporting elbow end face; Among this figure, the a plurality of interior convex body 401 of outer tube 400 extends radially out respectively, and match with the inner recess of interior pipe 200 ends respectively, the benefit of this structure is, not only can realize that outer tube 400 and interior pipe 200 are radially or the location on the center line direction, can also realize the location that week makes progress between outer tube 400 and the interior pipe 200, prevent that outer tube 400 is with respect to interior pipe 200 rotations.
Another kind of mode as shown in Figure 6, Fig. 6 shows the another kind of structural representation of transporting elbow end face; Among this figure, interior convex body 401 extends radially out, and forms a complete annular solid, and corresponding with interior convex body 401, inner recess also is complete annular.The benefit of this structure is, interior convex body 401 matches with the inner recess of annular, not only can realize outer tube 400 and interior pipe 200 location more reliably, also help the annular space between outer tube 400 internal surfaces and interior pipe 200 outer surfaces is sealed, the required precision of pipe 200 ends and outer tube 400 end fit dimensions in reducing, prevent that binder is excessive, conveniently the filling of following binder.
Refer again to the transporting elbow sectional structure schematic representation that the embodiment of the invention shown in Figure 2 provides.Embodiment is a kind of, and the adhesive layer 300 that is formed by binder is as packed layer, and the active force of 200 pairs of outer tubes 400 of pipe in adhesive layer 300 not only can transmit guarantees the protection of pipe 200 in 400 pairs of the outer tubes and the realization of support function; Can also improve the Safety performance of transporting elbow.The reason that improves the transporting elbow Safety performance is: because adhesive layer 300 has adhesive property and anti-shear performance; In use, when the part of interior pipe 200 is worn and torn, the remainder of pipe 200 and outer tube 400 were fixing in adhesive layer 300 can keep, avoid piece and cause the obstruction of transporting elbow, keep transporting elbow unobstructed, transporting elbow that minimizing causes because of obstruction or whole delivery pipe explosion may, and then improve the Safety performance of delivery pipe.
The filling of binder and the formation of adhesive layer 300 as Fig. 7, and refer again to Fig. 2 for convenience, Fig. 7 is the II-II part enlarged view among Fig. 2, the figure shows hole for injecting glue 411, binder is by in the annular space between hole for injecting glue 411 injection outer tubes 400 and the interior pipe 200, to form adhesive layer 300.The meaning that hole for injecting glue 411 is arranged on the outer tube 400 is, can make things convenient for the injection of binder, to simplify the preparation process of transporting elbow.
Please refer to the sectional structure schematic representation of support tube shown in Figure 8, adverse effect for the intensity that further reduces 411 pairs of outer tubes 400 of hole for injecting glue, hole for injecting glue 411 can also be arranged on the side of outer tube 400, preferably, make its opening direction vertical with plane by the transporting elbow center line with the outermost of hole for injecting glue 411 settings with outer tube 400 sides; When delivering concrete, the stress ratio that the side of outer tube 400 produces is less, hole for injecting glue 411 is arranged on the side, the intensity that can reduce 411 pairs of outer tubes 400 of hole for injecting glue causes adverse effect, make hole for injecting glue 411 be positioned at the outermost of outer tube 400 sides, make its opening direction vertical, can reduce influence to greatest extent, guarantee the bulk strength of transporting elbow outer tube 400 intensity with plane by the transporting elbow center line.
For when injecting binder, make binder can be full of annular space between outer tube 400 and the interior pipe 200 equably, can also water conservancy diversion groove 412 be set at outer tube 400 internal surfaces.Please refer to Fig. 7, Fig. 8 and Fig. 9, Fig. 7 is the II-II part enlarged view among Fig. 2, the sectional structure schematic representation that Fig. 8 shows support tube, and Fig. 9 is the III-III part enlarged view among Fig. 2.In order to promote binder in annular space, to flow better, in this example, water conservancy diversion groove 412 diapires and hole for injecting glue 411 are intersected, like this, binder just can flow the quality of this not only favourable assurance adhesive layer 300 in the hoop direction by water conservancy diversion groove 412 after entering hole for injecting glue 411, can also improve the efficient of injecting binder, improve the efficient of making transporting elbow.Be appreciated that in order to promote flowing of binder better, increase the inhomogeneity quality of adhesive layer 300, water conservancy diversion groove 412 can also be extended at outer tube 400 internal surfaces twist, this structure can improve the flowability of binder on circumferential direction on the one hand; Can also improve the mobile performance of binder on the center line direction, improve the uniformity of adhesive layer 300; Equally, be appreciated that, also water conservancy diversion groove 412 can be set on the outer surface of interior pipe 200,, can also establish water conservancy diversion groove 412 simultaneously at the outer surface and outer tube 400 internal surfaces of interior pipe 200 in order to make the easier annular space that is full of between outer tube 400 and the interior pipe 200 of binder.
In the transporting elbow that an embodiment of comprehensive technique scheme optimum structure provides, the scope of the thickness of its adhesive layer 300 is 2-3mm, thickness less than packed layer 4-7mm in the prior art, like this, transporting elbow provided by the invention can reduce the weight of transporting elbow on the one hand, make things convenient for the layout of concrete conveying pipe, can also reduce the overall size of transporting elbow on the other hand, make things convenient for the layout of concrete delivery pipe; The combination of this two aspect can improve the conveying function of concrete conveyer, for the concrete construction operation facilitates.
Providing on the basis of above-mentioned transporting elbow, the present invention also provides a kind of concrete conveyer, this concrete conveyer comprises concrete delivery pipe, described delivery pipe comprises conveying straight tube and the transporting elbow that joins, described transporting elbow can be above-mentioned transporting elbow, and concrete conveyer can be concrete mixer, concrete distributing frame or the like.Because wear resistant conveying pipe provided by the invention has above-mentioned technique effect, the concrete conveyer that has this wear resistant conveying pipe also has the corresponding techniques effect.
Providing on the basis of above-mentioned transporting elbow, the present invention has also put forward a kind of making method of transporting elbow, the flow chart of the making method of transporting elbow provided by the invention as shown in figure 10, and this method may further comprise the steps:
S100 is enclosed within support tube 410 outside the interior pipe 200.Because outer tube 400 comprises a plurality of support tubes 410 and forms, therefore, can make support tube 410 have lower dimensional accuracy, outside pipe 400 in more easily support tube 410 being enclosed within many ways.
S200 is fixing with support tube 410 welding.Support tube 410 is weldingly fixed on together, can forms outer tube 400; Certainly, when outer tube 400 comprises flange or miscellaneous part, can also comprise the content of fixing assembling miscellaneous part.
S300 makes the interior convex body 401 of outer tube 400 match with the inner recess of interior pipe 200, makes outer tube 400 and interior pipe 200 fixed to one another, and form annular space between outer tube 400 and interior pipe 200;
S400 by injecting binder in the described annular space in the hole for injecting glue 411, forms adhesive layer 300.
Because interior pipe 200 can be by the cooperate location of realizing each other of interior convex body 401 with inner recess with outer tube 400, not only can reduce assist location mechanism, can also realize the injection of binder with common colloid-injecting gun, can simplify the preparation process of transporting elbow, reduce the transporting elbow fabricating cost; Preferred mode is that outer tube 400 comprises two support tubes 410, and makes two support tubes, 410 relative ends have flange respectively, flange and support tube 410 are structure as a whole, like this, when making transporting elbow, can make the preparation process of transporting elbow simpler.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (13)
1, a kind of transporting elbow, this transporting elbow comprise interior pipe (200), outer tube (400) and are positioned at described packed layer of managing between (200) and the outer tube (400), it is characterized in that described outer tube (400) comprises the support tube (410) that two orders are joined at least.
2, transporting elbow according to claim 1 is characterized in that, described support tube (410) is fixed by welding in together.
3, transporting elbow according to claim 2 is characterized in that, described outer tube (400) end also has radially-protruding interior convex body (401); Pipe (200) end has radially recessed inner recess in described, and described interior convex body (401) matches with described inner recess.
According to claim 1,2 or 3 described transporting elbows, it is characterized in that 4, described outer tube (400) has hole for injecting glue (411), described hole for injecting glue (411) runs through outer tube (400) tube wall; Described packed layer is the adhesive layer (300) that is formed by binder.
5, transporting elbow according to claim 4 is characterized in that, the internal surface of described outer tube (400) has water conservancy diversion groove (412).
6, transporting elbow according to claim 5 is characterized in that, the outer surface of described interior pipe (200) has water conservancy diversion groove (412).
7, transporting elbow according to claim 6 is characterized in that, described water conservancy diversion groove (412) is with spiral extension.
8, transporting elbow according to claim 7 is characterized in that, described adhesive layer (300) maximum ga(u)ge is less than 3mm.
According to each described transporting elbow of claim 4-8, it is characterized in that 9, described hole for injecting glue (411) is positioned at the outermost of described outer tube (400) side.
10, according to each described transporting elbow of claim 1-9, it is characterized in that, the pipe thickness of the inner arc of pipe (200) part (220) is less than the pipe thickness of the outer arc part (210) of interior pipe (200) in described, perhaps from the inboard outside to this center line of pipe (200) center line in described, the thickness of described interior pipe (200) tube wall increases gradually.
11, transporting elbow according to claim 10 is characterized in that, the thickness at outer arc part (210) two end part of described interior pipe (200) is less than the thickness of outer arc part (210) intermediate portion; Perhaps, the thickness of the outer arc of described interior pipe (200) part (210) increases from two end part to the intermediate portion gradually.
12, a kind of concrete conveyer comprises delivery pipe, and described delivery pipe comprises conveying straight tube and the transporting elbow that joins, and it is characterized in that, described transporting elbow is each described transporting elbow among the claim 1-11.
13, a kind of making method of transporting elbow is characterized in that, comprises step:
Support tube (410) is enclosed within outside the interior pipe (200);
Support tube 410 welding are fixing;
The interior convex body (401) of outer tube (400) is matched with the inner recess of interior pipe (200), make outer tube (400) and interior pipe (200) fixed to one another, form annular space;
In described annular space, inject binder by hole for injecting glue (401), form adhesive layer (300).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910159056A CN101625060A (en) | 2009-08-04 | 2009-08-04 | Conveying bent pipe, concrete conveyer and manufacturing method of same |
| PCT/CN2010/073798 WO2011015082A1 (en) | 2009-08-04 | 2010-06-11 | Conveying bent pipe, concrete conveyer and manufacturing method of the conveying bent pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910159056A CN101625060A (en) | 2009-08-04 | 2009-08-04 | Conveying bent pipe, concrete conveyer and manufacturing method of same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101625060A true CN101625060A (en) | 2010-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910159056A Pending CN101625060A (en) | 2009-08-04 | 2009-08-04 | Conveying bent pipe, concrete conveyer and manufacturing method of same |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101625060A (en) |
| WO (1) | WO2011015082A1 (en) |
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| CN101973117A (en) * | 2010-06-23 | 2011-02-16 | 昆山科信橡塑机械有限公司 | Forcible blanking transition body applied to double-stage machine set |
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| CN101625060A (en) * | 2009-08-04 | 2010-01-13 | 三一重工股份有限公司 | Conveying bent pipe, concrete conveyer and manufacturing method of same |
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