CN102502265A - End hose, end hose stiffness control system and pipeline transportation machinery - Google Patents
End hose, end hose stiffness control system and pipeline transportation machinery Download PDFInfo
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- CN102502265A CN102502265A CN2011102968085A CN201110296808A CN102502265A CN 102502265 A CN102502265 A CN 102502265A CN 2011102968085 A CN2011102968085 A CN 2011102968085A CN 201110296808 A CN201110296808 A CN 201110296808A CN 102502265 A CN102502265 A CN 102502265A
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Abstract
The invention relates to the technical field of pipeline transportation machinery, and discloses an end hose, which is arranged at the tail end of a transportation pipeline and comprises a hose body. A feeding port of the hose body is communicated with a discharging port at the tail end of the transportation pipeline, at least part of the outer side of the hose body along the length direction is provided with an elastic container, and pressure inside the elastic container can be adjusted so that the stiffness of the end hose is adjusted. The pressure inside the elastic container is increased after media are filled into the elastic container, the surface tension of the elastic container can be increased along with the pressure, the stiffness of the elastic container and the hose body in the length direction is enhanced, the stiffness of the end hose can be adjusted by adjusting the pressure inside the elastic container to meet the requirements of different applications scenarios on the stiffness of the end hose, substantial swing of the end hose in transportation can be prevented, splashing of materials is decreased, material distribution is more convenient, and personal safety of operators is guaranteed. The invention further discloses an end hose stiffness control system and pipeline transportation machinery.
Description
Technical field
The present invention relates to ducting machinery technical field, relate in particular to a kind of end hose.The invention still further relates to a kind of end hose rigidity control system and ducting machinery.
Background technology
Be used for the ducting machinery of conveyance fluid, the end of its delivery duct is provided with end hose usually, and end hose is particularly common on concrete pump truck.
Concrete pump truck is delivered to the construction point through the concrete conveying pipe of arranging along jib with concrete pump; For the ease of cloth, set up end hose at the jib end usually, the inlet point of end hose is communicated with the end of concrete conveying pipe; Discharging opening is used for cement concrete is discharged; End hose has by flexible material usually and constitutes, and operating personal can artificially spur end hose, to increase the accuracy of cloth; Simultaneously, end hose can make cement concrete discharge more uniformly, avoids the discharging splash phenomena.
Concrete pump truck if delivery pressure is excessive, can cause end hose to receive very big application force, and the flexibility characteristics of end hose makes that significantly whipping appears in end hose when pumping pressure is higher when carrying out pumping work; When mud or cement concrete pump first or wherein be mingled with foreign material or air, can cause the end hose whipping; When jib is carried out laterally rotation, no matter be to start or anxious stopping, can cause the whipping of end hose.
It is thus clear that when concrete pump truck during at pumpdown, the whipping phenomenon appears in end hose easily, splashing of the easy material of whipping of end hose not only brings inconvenience to cloth, and also the personal safety to the operator has caused very big hidden danger.
Therefore, how to reduce end hose whipping, reduce splashing of material, become the technical barrier that those skilled in the art need to be resolved hurrily.
Summary of the invention
First purpose of the present invention provides a kind of end hose, and this end hose is arranged at the end of delivery duct, can reduce the whipping of end hose, reduces splashing of material.Second purpose of the present invention provides a kind of end hose rigidity control system that is used to control above-mentioned end flexible pipe rigidity.The 3rd purpose of the present invention provides a kind of ducting machinery with above-mentioned end flexible pipe.
In order to realize above-mentioned first purpose; The invention provides a kind of end hose, be arranged at the end of delivery duct, comprise the flexible pipe body; The inlet point of said flexible pipe body is communicated with the terminal discharging opening of said delivery duct; The outside of said flexible pipe body is provided with elastic container along at least a portion on its length direction, and the adjustable in pressure in the said elastic container is to adjust the rigidity of said end hose.
Preferably, said elastic container is the outside that tubular is wrapped in said flexible pipe body.
Preferably, the radial section size at said elastic container inlet point place is greater than the radial section size at discharging opening place.
Preferably, the radial section size of said elastic container reduces along flexible pipe body inlet point to discharging opening direction gradually.
Preferably, the radial section size of said elastic container progressively reduces to the discharging opening direction is stepped along flexible pipe body inlet point.
Preferably, the quantity of said elastic container is no less than two joints.
Preferably, the said elastic container of every joint is a tubular, and near the radial section size of the said elastic container of feed inlet end greater than radial section size near the said elastic container of discharge port end.
Preferably, the said elastic container of every joint is a taper, and the radial section size of said elastic container reduces along flexible pipe body inlet point to discharging opening direction successively.
Preferably, said elastic container is an air bag.
End hose provided by the invention comprises the flexible pipe body; The inlet point of this flexible pipe body is communicated with the terminal discharging opening of delivery duct; The discharging opening of flexible pipe body is used to discharge material; The outside of said flexible pipe body is provided with elastic container along at least a portion on its length direction, and the adjustable in pressure in the said elastic container is to adjust the rigidity of said end hose.Internal pressure will raise after charging into medium in the elastic container, and the surface tension of elastic container also can make the rigidity of end hose on its length direction increase along with increase; Rigidity through the adjustable in pressure joint end hose in the adjustment elastic container; Satisfying under the different application scene rigidity requirement, thereby can prevent the significantly whipping of end hose when carrying operation, reduce splashing of material end hose; Make cloth convenient, ensured operator's personal safety.
In order to realize above-mentioned second purpose, the present invention also provides a kind of end hose rigidity control system, is used to control the rigidity of each said end hose of claim 1-8, and this end hose rigidity control system comprises:
The control signal input media is used for sending the control command that opens or closes switch valve and switch valve aperture to controller;
Controller is used to receive said control command, and sends control signal to switch valve;
Switch valve, the medium import of said switch valve is communicated with medium source, and the media outlet of said switch valve is communicated with said elastic container, and control end is connected with the control signal output ends of said controller.
Preferably, said control signal input media is a Digiplex, sends control command with the form of wireless signal to said controller; Said medium source is the chassis gas tank; Said switch valve is an electromagnetic gas valve.
End hose rigidity control system provided by the invention comprises control signal input media, controller and switch valve; The medium import of switch valve is communicated with medium source; The media outlet of switch valve is communicated with elastic container, and the control end of switch valve is connected with the control signal output ends of controller; The control signal input media sends the control command that opens or closes switch valve and switch valve aperture to controller; Controller receives said control command, and sends control signal is in unlatching or closed condition and switch valve with the master cock valve aperture size to switch valve.
Can control the pressure size in the elastic container of end hose according to operating mode through this end hose rigidity control system, and then the size of the rigidity of control end hose, with the automation control of the rigidity that realizes end hose.
In order to realize above-mentioned the 3rd purpose, the present invention also provides a kind of ducting machinery, comprises delivery duct, and the end of said pipeline is connected with above-mentioned end hose, and/or comprises above-mentioned end hose rigidity control system.Because above-mentioned end hose and/or end hose rigidity control system has above-mentioned technique effect, the ducting machinery with this end hose and/or end hose rigidity control system also should possess the corresponding techniques effect.
Description of drawings
Fig. 1 is the structural representation of a kind of specific embodiment of end hose provided by the present invention;
Fig. 2 is the structural representation of the another kind of specific embodiment of end hose provided by the present invention;
Fig. 3 is the structured flowchart of a kind of specific embodiment of end hose rigidity control system provided by the present invention;
Fig. 4 is the principle of work scheme drawing of electromagnetic gas valve among Fig. 3.
The specific embodiment
In order to make those skilled in the art better understand technical scheme of the present invention, the present invention is done further detailed description below in conjunction with the accompanying drawing and the specific embodiment.
Please referring to Fig. 1, Fig. 1 is the structural representation of a kind of specific embodiment of end hose provided by the present invention.
As shown in Figure 1; End hose provided by the present invention comprises flexible pipe body 11; Flexible pipe body 11 has inlet point 111 and discharging opening 112, and the inlet point 111 of flexible pipe body 11 is communicated with the end of delivery duct, and the discharging opening 112 of flexible pipe body 11 is used for material is discharged; The outside of said flexible pipe body 11 is provided with elastic container along at least a portion on its length direction, and the adjustable in pressure in the said elastic container is to adjust the rigidity of said end hose.Can charge into medium in the elastic container, the capacity through charging into the elastic container medium is with adjustment elastic container pressure inside.
Internal pressure will raise after charging into medium in the elastic container; The surface tension of elastic container also can be along with increase like this, thereby makes elastic container and flexible pipe body 11 rigidity on its length direction increase, therefore; Rigidity through the adjustable in pressure joint end hose in the adjustment elastic container; Satisfying under the different application scene rigidity requirement, thereby can prevent the significantly whipping of end hose when carrying operation, reduce splashing of material end hose; Make cloth convenient, ensured operator's personal safety.Be provided with the elastic container that extends along these flexible pipe body 11 length directions in the outside of flexible pipe body 11, can also increase the distance of flexible pipe body 11 bearing surfaces, increased the arm of force indirectly to flexible pipe body 11 neutral axiss.
When especially this end hose is used on the concrete pump truck, when big or pump concrete label is higher when pump displacement, can improve the rigidity of end hose, to prevent end hose generation whipping with being full of medium in the elastic container; When the jib fast rotational, can improve the rigidity of end hose with being full of medium in the elastic container, prevent to start or anxious stopping time end hose is answered whipping and because the splashing of the material that whipping causes; In the time of need carrying out accurate cloth, can discharge the medium in the elastic container, reduce the rigidity of end hose, carry out accurate cloth so that the operator can spur end hose.
In the preferred version, said elastic container can be air bag 12, and the medium that gets into air bag 12 is a gas; After gas gets into air bag 12; Can improve the pressure in the air bag 12, can regulate the rigidity of air bag 12 through the size of regulating the air pressure in the air bag 12, and then adjust the rigidity of whole end hose.
This scheme realizes the adjusting of the rigidity of end hose through gas, and end hose in light weight helps the loss of weight of jib.
In the concrete scheme, air bag 12 can comprise the fiber internal layer, and the fiber internal layer has higher intensity and modulus of elasticity, thereby can make air bag 12 under inflated condition, can bear bigger moment of flexure.
In the preferred version; Air bag 12 can be the outside that tubular is wrapped in flexible pipe body 11; In this scheme, charge into gas in the air bag 12 after, the surface tension of air bag 12 can make the surface of flexible pipe body 11 all be in extended configuration; Can increase the distance of flexible pipe body 11 bearing surfaces, suppress the whipping of end hose better to the end hose neutral axis.
In the more excellent scheme, air bag 12 can be wholely set with flexible pipe body 11, can simplify the structure of end hose, the more reasonable stress of flexible pipe body 11.
In the preferred version; The radial section size at elastic container inlet point 111 places is greater than the radial section size at discharging opening 112 places; The end hose of this structure, during pressurising, the rigidity at inlet point 111 places is greater than the rigidity of discharging opening 112 in the elastic container; This structure is convenient to operating personal pulling end hose and is carried out the cloth operation, can be convenient to accurate cloth location.
Further in the scheme, the radial section size of elastic container reduces along flexible pipe body 11 inlet point 111 to discharging openings 112 directions gradually.
In the replacement scheme, the radial section size of elastic container progressively reduces along flexible pipe body 11 inlet point 111 to discharging openings 112 directions are stepped.
Need to prove, the setting of the radial section size of above-mentioned elastic container, when elastic container adopted air bag 12, the radial section size of elastic container was meant that it is in the radial section size under the deployed condition to air bag 12 when inflation.
In the foregoing description; The arranged outside of flexible pipe body has an elastic container that extends along flexible pipe body length direction; The present invention is not limited thereto; Also can be provided with on the outside length direction of flexible pipe body and be no less than two elastic container, can the pressurising respectively of flexible pipe body different piece be regulated separately the rigidity of every part as required.Following examples, through the arranged outside at the flexible pipe body the three joint elastic containers that extend along flexible pipe body length direction being arranged is example, and this scheme is carried out brief account.
Please referring to Fig. 2, Fig. 2 is the structural representation of the another kind of specific embodiment of end hose provided by the present invention.
As shown in Figure 2, this end hose comprises flexible pipe body 21, and flexible pipe body 21 has inlet point 211 and discharging opening 212, and the inlet point 211 of flexible pipe body 21 is communicated with the end of delivery duct, and the discharging opening 212 of flexible pipe body 21 is used for material is discharged; The outside of flexible pipe body 21 is provided with first elastic container 22 that extends along this flexible pipe body 21 length directions, second elastic container 23, the 3rd elastic container 24 successively.
The end hose of this structure is provided with three independent elastic containers along flexible pipe body 21 length directions; Can realize the pressurising respectively of three elastic containers; Realize the independent adjusting of end hose different piece rigidity, when needs suitably increase flexible pipe rigidity, can be separately to elastic container punching press near inlet point 211; Elastic container near discharging opening 212 keeps relaxed state, can make the operator can spur end hose and carry out cloth; When the end hose whipping was very violent, three elastic container pressurisings simultaneously realized the increase of end hose integral rigidity, suppress its whipping.
In the concrete scheme; First elastic container 22, second elastic container 23, the 3rd elastic container 24 are tubular; And near the radial section size of the said elastic container of feed inlet end greater than radial section size near the said elastic container of discharge port end; Promptly the radial section size of first elastic container 22, second elastic container 23, the 3rd elastic container 24 can reduce successively, is convenient to operating personal pulling end hose and carries out the cloth operation, can be convenient to accurate cloth location.
In the concrete scheme, the said elastic container of every joint also can be taper, and the radial section size of said elastic container reduces along flexible pipe body inlet point to discharging opening direction gradually.In preferred version; First elastic container 21 is not less than the radial section size of second elastic container 22 near feed inlet end near the radial section size of discharge port end, and second elastic container 22 is not less than the radial section size of the 3rd elastic container 23 near feed inlet end near the radial section size of discharge port end.
Among the above embodiment, elastic container adopts air bag, and medium adopts gas; The present invention is not limited thereto, but elastic container also can adopt the elastic container of full of liquid, and medium adopts liquid; Its specific embodiment is similar to the above embodiments, no longer is described in detail at this.These two kinds of schemes all should be in protection scope of the present invention.
For the ease of the rigidity of control end hose, the present invention also provides a kind of end hose rigidity control system, and following examples are introduced it.
Please referring to Fig. 3, Fig. 3 is the structured flowchart of a kind of specific embodiment of end hose rigidity control system provided by the present invention.
As shown in Figure 3, the end hose rigidity control system that is used to control above-mentioned end flexible pipe rigidity provided by the invention comprises control signal input media, controller, switch valve and the end hose that is made up of elastic container, flexible pipe body.
The medium import of switch valve is communicated with medium source, and the media outlet of switch valve is communicated with elastic container, and the control end of switch valve is connected with the control signal output ends of controller; The control signal input media sends the control command that opens or closes switch valve and switch valve aperture to controller; Controller receives said control command, and sends control signal is in unlatching or closed condition and switch valve with the master cock valve aperture size to switch valve.
Can control the pressure size in the elastic container of end hose according to operating mode through this end hose rigidity control system, and then the size of the rigidity of control end hose, with the automation control of the rigidity that realizes end hose.
In the preferred version, elastic container can adopt air bag, and switch valve can adopt electromagnetic gas valve 3, and medium source can adopt storage tank, and is as shown in Figure 4, and the admission port of electromagnetic gas valve 3 is communicated with storage tank, and air extractor duct is communicated with air bag, leakage port and atmosphere.During pressurising, the admission port of electromagnetic gas valve 3 is communicated with air extractor duct; During release, air extractor duct is communicated with leakage port; Under other operating modes, the spool of electromagnetic gas valve 3 is in meta and realizes the shutoff function.
In the concrete scheme, said storage tank can adopt the chassis gas tank, by the chassis gas tank high pressure gas is provided, and does not need extra increase source of the gas.
In the preferred version, said control signal input media can adopt Digiplex, sends control command with the form of wireless signal to said controller.This scheme can be simplified control path, makes that the structure of ducting machinery is compact more.
The present invention is not limited thereto, and elastic container can also adopt the elastic container that is used for full of liquid, and switch valve can adopt electromagnetic hydraulic valve, and medium source can adopt the liquid pump, and it is similar to the above embodiments that it has implementation process, no longer is described in detail at this.
The present invention also provides a kind of ducting machinery, comprises delivery duct, and the end of said pipeline is connected with above-mentioned end hose, and/or comprises above-mentioned end hose rigidity control system.Because above-mentioned end hose and/or end hose rigidity control system has above-mentioned technique effect, the ducting machinery with this end hose and/or end hose rigidity control system also should possess the corresponding techniques effect.
The above only is the description of the preferred implementation of invention; Should be pointed out that finiteness, and objectively have unlimited concrete structure owing to literal expression; For those skilled in the art; Under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (12)
1. end hose; Be arranged at the end of delivery duct, comprise the flexible pipe body, the inlet point of said flexible pipe body is communicated with the terminal discharging opening of said delivery duct; It is characterized in that; The outside of said flexible pipe body is provided with elastic container along at least a portion on its length direction, and the adjustable in pressure in the said elastic container is to adjust the rigidity of said end hose.
2. end hose according to claim 1 is characterized in that said elastic container is the outside that tubular is wrapped in said flexible pipe body.
3. end hose according to claim 1 is characterized in that, the radial section size at said elastic container inlet point place is greater than the radial section size at discharging opening place.
4. end hose according to claim 3 is characterized in that, the radial section size of said elastic container reduces along flexible pipe body inlet point to discharging opening direction gradually.
5. end hose according to claim 3 is characterized in that, the radial section size of said elastic container progressively reduces to the discharging opening direction is stepped along flexible pipe body inlet point.
6. end hose according to claim 1 is characterized in that the quantity of said elastic container is no less than two joints.
7. end hose according to claim 6 is characterized in that, the said elastic container of every joint is a tubular, and near the radial section size of the said elastic container of feed inlet end greater than radial section size near the said elastic container of discharge port end.
8. end hose according to claim 6 is characterized in that, the said elastic container of every joint is a taper, and the radial section size of said elastic container reduces along flexible pipe body inlet point to discharging opening direction gradually.
9. according to each described end hose of claim 1-8, it is characterized in that said elastic container is an air bag.
10. end hose rigidity control system is used to control the rigidity of each said end hose of claim 1-9, it is characterized in that this end hose rigidity control system comprises:
The control signal input media is used for sending the control command that opens or closes switch valve and switch valve aperture to controller;
Controller is used to receive said control command, and sends control signal to switch valve;
Switch valve, the medium import of said switch valve is communicated with medium source, and the media outlet of said switch valve is communicated with said elastic container, and control end is connected with the control signal output ends of said controller.
11. end hose rigidity control system according to claim 10 is characterized in that said control signal input media is a Digiplex, sends control command with the form of wireless signal to said controller; Said medium source is the chassis gas tank; Said switch valve is an electromagnetic gas valve.
12. a ducting machinery comprises delivery duct, it is characterized in that, the end of said delivery duct is connected with each described end hose of claim 1-9, and/or comprises each described end hose rigidity control system of claim 10-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110296808.5A CN102502265B (en) | 2011-09-30 | 2011-09-30 | End hose, end hose stiffness control system and pipeline transportation machinery |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110296808.5A CN102502265B (en) | 2011-09-30 | 2011-09-30 | End hose, end hose stiffness control system and pipeline transportation machinery |
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| CN102502265A true CN102502265A (en) | 2012-06-20 |
| CN102502265B CN102502265B (en) | 2015-04-01 |
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| CN201110296808.5A Active CN102502265B (en) | 2011-09-30 | 2011-09-30 | End hose, end hose stiffness control system and pipeline transportation machinery |
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Cited By (4)
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| CN102720363A (en) * | 2012-06-21 | 2012-10-10 | 三一重工股份有限公司 | Arm support device and concrete pump truck |
| CN103147579A (en) * | 2013-01-09 | 2013-06-12 | 广西大都混凝土集团有限公司 | Safety device for tail end hose of pump truck |
| CN106041994A (en) * | 2016-07-25 | 2016-10-26 | 华南理工大学 | Device and method for achieving hose-rigid pipe conversion based on screw-nut principle |
| CN113109032A (en) * | 2021-03-04 | 2021-07-13 | 山东科技大学 | Measurement experiment method for transient whipping behavior of pressurized pipeline |
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| CN201897079U (en) * | 2010-09-17 | 2011-07-13 | 富美科技有限公司 | Automatic inflating equipment for inflating bag |
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| JP4334432B2 (en) * | 2004-07-29 | 2009-09-30 | 三洋電機株式会社 | Reciprocating rotary drive mechanism |
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| JPH04334432A (en) * | 1991-05-11 | 1992-11-20 | Sumitomo Rubber Ind Ltd | Temporarily clamping device |
| CN101076640A (en) * | 2004-12-13 | 2007-11-21 | 粉刷师股份公司 | End hose for discharge of thick substances |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102720363A (en) * | 2012-06-21 | 2012-10-10 | 三一重工股份有限公司 | Arm support device and concrete pump truck |
| CN102720363B (en) * | 2012-06-21 | 2015-04-01 | 三一汽车制造有限公司 | Arm support device and concrete pump truck |
| CN103147579A (en) * | 2013-01-09 | 2013-06-12 | 广西大都混凝土集团有限公司 | Safety device for tail end hose of pump truck |
| CN103147579B (en) * | 2013-01-09 | 2016-03-30 | 广西大都混凝土集团有限公司 | Safety device for tail end hose of pump truck |
| CN106041994A (en) * | 2016-07-25 | 2016-10-26 | 华南理工大学 | Device and method for achieving hose-rigid pipe conversion based on screw-nut principle |
| CN106041994B (en) * | 2016-07-25 | 2019-01-18 | 华南理工大学 | A kind of feed screw nut's principle realizes hose-rigid pipe conversion equipment and method |
| CN113109032A (en) * | 2021-03-04 | 2021-07-13 | 山东科技大学 | Measurement experiment method for transient whipping behavior of pressurized pipeline |
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| Publication number | Publication date |
|---|---|
| CN102502265B (en) | 2015-04-01 |
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