CN103883803A - Telescopic water pipe of fire truck and machining process thereof - Google Patents
Telescopic water pipe of fire truck and machining process thereof Download PDFInfo
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- CN103883803A CN103883803A CN201410112334.8A CN201410112334A CN103883803A CN 103883803 A CN103883803 A CN 103883803A CN 201410112334 A CN201410112334 A CN 201410112334A CN 103883803 A CN103883803 A CN 103883803A
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- water pipe
- monomer
- internal layer
- pipe monomer
- flexible
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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
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C27/00—Fire-fighting land vehicles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a telescopic water pipe of a fire truck. The telescopic water pipe comprises a telescopic water pipe body, installation flanges and sealing protection sleeves, and the installation flanges and the sealing protection sleeves are arranged on the telescopic water pipe body. The telescopic water pipe body comprises an outer-layer water pipe single body and an inner-layer water pipe single body sleeved with the outer-layer water pipe single body, and both the outer-layer water pipe single body and the inner-layer water pipe single body are made of aluminum alloy. Because the density of the aluminum alloy is much lower than that of stainless steel, the weight of the telescopic water pipe body made of the aluminum alloy can be effectively reduced under the condition that the outer diameter and thickness of the outer-layer water pipe single body and the outer diameter and thickness of the inner-layer water pipe single body are not changed, and accordingly the overall weight of the telescopic water pipe can be reduced; besides, the load of an oil cylinder used for lifting the telescopic water pipe can be reduced, and accordingly the telescopic water pipe can be lifted more flexibly and contract more flexibly. The invention further discloses a machining process of the telescopic water pipe.
Description
Technical field
The present invention relates to fire-fighting vehicle technical field, more particularly, relate to a kind of flexible water pipe and processing technology thereof of fire-fighting truck.
Background technique
Fire-fighting truck is special in fire fighting or other urgent vehicles that rescues purposes, on it, be provided with the flexible water pipe of carrying water for the burning things which may cause a fire disaster that hoists, in order to put out a fire to save life and property to the burning things which may cause a fire disaster of eminence rapidly, conventionally in flexible water pipe, be all provided with three joints or the above water pipe monomer of three joints.
Be understandable that, in order to guarantee that the flexible the thinnest part of water pipe can reach the requirement of carrying capacity, along with the increase of water pipe monomer joint number in flexible water pipe, the diameter of outside water pipe monomer also needs to continue to increase.
The water pipe monomer of fire-fighting truck all adopts stainless steel to be made at present, the increase of water pipe monomer on diameter and the increase of water pipe monomer joint number all make current flexible water pipe overall weight larger, this has increased load with regard to giving for the oil cylinder of the flexible water pipe of lifting, and it is too heavy that whole flexible water pipe seems, lifting speed and efficiency obviously decline, this has just wasted the quality time of fire fighting, the increase of simultaneous retractable water pipe weight also makes the oil cylinder Security of the flexible water pipe of lifting decline, and oil cylinder easily breaks down in working procedure.
Therefore, how can effectively reduce the weight of at present flexible water pipe, to reduce the load of oil cylinder, making the lifting of flexible water pipe and flexible becoming is the technical problem that current those skilled in the art need solution badly more flexibly.
Summary of the invention
In view of this, one of object of the present invention is to provide a kind of flexible water pipe of fire-fighting truck, so that can reduce the weight of the flexible water pipe on fire-fighting truck, thus reduce the load for the oil cylinder of the flexible water pipe of lifting, make the lifting of flexible water pipe become more flexible with flexible;
Another object of the present invention is to provide a kind of processing technology of above-mentioned flexible water pipe.
For achieving the above object, the invention provides following technological scheme:
A kind of flexible water pipe of fire-fighting truck, comprise flexible water pipe body and be arranged at mounting flange and the sealing sheath on described flexible water pipe body, described flexible water pipe body comprises outer water pipe monomer and is sheathed on the internal layer water pipe monomer of described outer water pipe monomer inside, and described outer water pipe monomer and described internal layer water pipe monomer are the water pipe monomer of aluminum alloy material.
Preferably, in above-mentioned flexible water pipe, described outer water pipe monomer and described internal layer water pipe monomer are the water pipe monomer of 6061-T5 aluminum alloy material.
Preferably, in above-mentioned flexible water pipe, described mounting flange and described sealing sheath are 7075-T6 aluminum alloy.
The processing technology that the present invention also discloses a kind of above-mentioned flexible water pipe, comprises step:
1) described outer water pipe monomer and described internal layer water pipe monomer are carried out respectively to excircle polishing;
2) outer surface of described internal layer water pipe monomer is carried out to hard anodize;
3) endoporus of described outer water pipe monomer and internal layer water pipe monomer is carried out to honing processing;
4) welded and installed flange and sealing sheath;
5) described outer water pipe monomer and described internal layer water pipe monomer are assembled into flexible water pipe.
Preferably, in above-mentioned processing technology, adopt grinding and polishing integrated machine to carry out excircle polishing to described outer water pipe monomer and described internal layer water pipe monomer, and bistrique is 35-40m/min with the relative feed speed of workpiece when polishing, wheelhead pressure is 25-30MPa.
Preferably, in above-mentioned processing technology, adopt honing machine to carry out honing processing to described outer water pipe monomer and described internal layer water pipe monomer, and bistrique when honing and the relative rotation speed of workpiece are 145-155r/min, feed speed is 15-20m/min relatively, and low pressure is 20MPa, and high pressure is 25MPa.
Preferably, in above-mentioned processing technology, when honing, the relative rotation speed of bistrique and workpiece is 150r/min, and feed speed is 18m/min relatively.
Preferably, in above-mentioned processing technology, described mounting flange and described sealing sheath adopt TIG weldering, and shielding gas is pure argon.
Preferably, in above-mentioned processing technology, the weld seam of described mounting flange and described sealing sheath is fillet weld, and described mounting flange and described sealing sheath adopt double-deck weldering mode to weld.
Preferably, in above-mentioned processing technology, the welding current of bottom scolder is 230-240A, and the welding current of top layer scolder is 180-200A, and the welding speed of described bottom scolder and described top layer scolder is 4-6mm/s, and the airspeed of argon gas is 15-20L/min.
By finding out in technique scheme, in the flexible water pipe of the fire-fighting truck providing in the present invention, all adopt aluminum alloy material to be made for the outer water pipe monomer and the internal layer water pipe monomer that form flexible water pipe body.The density of aluminum alloy is significantly less than the density of stainless steel material, thereby at outer water pipe monomer and internal layer water pipe monomer external diameter and thickness constant in the situation that, after adopting aluminum alloy material, can effectively reduce the weight of stretching water pipe body, thereby reduce the overall weight of flexible water pipe, the load that this can reduce for the oil cylinder of the flexible water pipe of lifting, makes the lifting of flexible water pipe and stretches to become more flexible.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The cross-sectional schematic of the telescopic pipe of the fire-fighting truck that Fig. 1 provides for the embodiment of the present invention;
The process flow diagram of the telescopic pipe processing technology that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the weld seam that Fig. 3 is the mounting flange that provides in the embodiment of the present invention.
Wherein, 1 is outer water pipe monomer, and 2 is internal layer water pipe monomer, and 3 is mounting flange, and 4 is sealing sheath, and 5 is fillet weld.
Embodiment
One of core of the present invention is to provide a kind of flexible water pipe of fire-fighting truck, to reduce the overall weight of at present flexible water pipe, thereby reduces the load of oil cylinder, makes the lifting of flexible water pipe become more flexible with flexible;
Another core of the present invention is to provide a kind of processing technology of above-mentioned flexible water pipe.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technological scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skills, not making the every other embodiment who obtains under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the cross-sectional schematic of the telescopic pipe of the fire-fighting truck that Fig. 1 provides for the embodiment of the present invention.
In the flexible water pipe of the fire-fighting truck providing in the embodiment of the present invention, comprise flexible water pipe body and be arranged on mounting flange 3 and the sealing sheath 4 on flexible water pipe body, and flexible water pipe body comprises outer water pipe monomer 1 and is set in the internal layer water pipe monomer 2 of outer water pipe monomer 1 inside, as shown in fig. 1, wherein mounting flange 3 is arranged on respectively the two ends of flexible water pipe body, it is connected with other equipment or pipeline on fire-fighting truck for flexible water pipe, sealing sheath 4 is arranged on other water pipe monomers except innermost layer water pipe monomer, its effect is to prevent that dust or particulate matter from entering into telescopic pipe body interior and cause the wearing and tearing of the internal layer water pipe monomer 2 of telescopic pipe, sealing sheath 4 comprises the Sealing that is fixedly installed on the sealing sheath body on flexible water pipe body and is arranged on sealing sheath body interior, and the flexible water pipe providing in the embodiment of the present invention, is the water pipe monomer of aluminum alloy material for forming the outer water pipe monomer 1 of flexible water pipe body and internal layer water pipe monomer 2.
In flexible water pipe shown in Fig. 1, internal layer water pipe monomer 2 specifically comprises two, be that whole flexible water pipe body is made up of three saving pipe of water monomers, be respectively an outer water pipe monomer 1 and two internal layer water pipe monomers 2, certainly, according to the size of the actual specification of fire-fighting truck and water pump and oil cylinder power, can also carry out adaptability increase and decrease to the number of internal layer water pipe monomer 2, to change the entire length of flexible water pipe body.
Because the density of aluminum alloy is significantly less than the density of stainless steel material, thereby at outer water pipe monomer 1 and internal layer water pipe monomer 2 external diameters and thickness constant in the situation that, after adopting aluminum alloy material, can effectively reduce the weight of stretching water pipe body, thereby reduce the overall weight of flexible water pipe, the load that this can reduce for the oil cylinder of the flexible water pipe of lifting, makes the lifting of flexible water pipe and stretches to become more flexible.
More preferred, in the flexible water pipe providing in the present embodiment, outer water pipe monomer 1 and internal layer water pipe monomer 2 are the water pipe monomer of 6061-T5 aluminum alloy material, and the weight percentage that in 6061-T5 aluminum alloy material, various chemistry become is: Si0.61 ± 0.03, Fe≤0.17, Cu0.25 ± 0.03, Mn
≤ 0.05, Mg0.97 ± 0.03, Cr0.04～0.08, Zn < 0.05, Ti < 0.05, all the other are Al, above-mentioned each numerical value represents that respectively each composition accounts for the percentage of gross weight, this kind of aluminum alloy material not only intensity meets the demand of the flexible water pipe of fire-fighting truck completely, its density is only 1/3 of stainless steel density simultaneously, thereby can reduce greatly the overall weight of flexible water pipe.
Further, because mounting flange 3 need to be connected with miscellaneous part or pipeline on fire-fighting truck, thereby mounting flange 3 itself is had to certain hardness requirement, sealing sheath 4 need to have higher wear-resisting property simultaneously, therefore in order to make mounting flange 3 and sealing sheath 4 have more good hardness and wear-resisting property under the prerequisite of lighter weight, the mounting flange 3 in the present embodiment and sealing sheath 4 all adopt the 7075-T6 aluminum alloy of high-hardness, wearable to make.
The processing technology that simultaneously also discloses the flexible water pipe of above-mentioned fire-fighting truck in the embodiment of the present invention, please refer to Fig. 2, and this processing technology comprises step:
S1) outer water pipe monomer 1 and internal layer water pipe monomer 2 are carried out respectively to excircle polishing;
S2) outer surface of internal layer water pipe monomer 2 is carried out to hard anodize;
The main purpose of this treatment step is hardness and the wear-resisting property that strengthens aluminum alloy surface, avoids the internal layer water pipe monomer 2 stretching out to be scratched by extraneous foreign matter;
S3) endoporus of outer water pipe monomer 1 and internal layer water pipe monomer 2 is carried out to honing processing;
S4) at corresponding position welded and installed flange 3 and sealing sheath 4;
S5) outer water pipe monomer 1 and internal layer water pipe monomer 2 are assembled into flexible water pipe.
Because the quality of aluminum alloy material own is softer, its wear resistance and hardness are not high, in the process of the flexible actual use of water pipe, internal layer water pipe monomer 2 is easily scratched by on-the-spot foreign matter after stretching out, in the processing technology of the telescopic pipe for this reason providing in the present embodiment, be provided with the step of the outer surface of internal layer water pipe monomer 2 being carried out to hard anodize, to strengthen hardness and the wear-resisting property of internal layer water pipe monomer 2 outer surfaces.
Under normal circumstances, before outer water pipe monomer 1 and internal layer water pipe monomer 2 carry out excircle polishing step, also comprise the blanking procedure of pipe, so-called pipe blanking procedure is: choose after suitable pipe, adopt cutting process that pipe is cut into suitable length, more preferred, after pipe blanking procedure, also comprise the alignment to pipe, to facilitate the processing of subsequent handling.
Certainly, operation in above-described embodiment in the processing technology of disclosed flexible water pipe is a kind of highly preferred operation, what those skilled in the art easily expected is, can also first carry out honing processing to the endoporus of outer water pipe monomer 1 and internal layer water pipe monomer 2, and then outer water pipe monomer 1 and internal layer water pipe monomer 2 are carried out respectively to excircle polishing, carry out again following process operation after completing excircle polishing.
In above-described embodiment, the processing technology of the flexible water pipe of disclosed aluminum alloy is especially applicable to the processing of the flexible water pipe of 6061-T5 aluminum alloy material, while outer water pipe monomer 1 and internal layer water pipe monomer 2 being carried out to polishing in the present embodiment, on polishing all-in-one machine, carry out, polishing all-in-one machine is specially U.S. ACME grinding and polishing integrated machine, for the outer surface that makes outer water pipe monomer 1 and internal layer water pipe monomer 2 reaches best rubbing down effect, in the time of polishing, bistrique is 35-40m/min with the relative feed speed of workpiece, for example 35m/min, 38m/min or 40m/min, the pressure of bistrique is that wheelhead pressure is 25-30MPa, for example 25MPa or 8MPa, certainly, those skilled in the art can also adopt other process parameters to carry out polishing, preferably glossing parameter is only disclosed in the present embodiment.
Outer water pipe monomer 1 and internal layer water pipe monomer 2 are carried out to honing to carry out on honing machine, the honing machine adopting in the present embodiment is specially 12 meters of HTC-12300W honing machines of Switzerland, and in the time that honing can reach optimum efficiency, relative rotation speed between bistrique and workpiece is 145-155r/min, as 148r/min, 152r/min, 155r/min etc., feed speed is 15-20m/min relatively, as 15m/min or 20m/min etc., low pressure is 20MPa, high pressure is 25MPa, low pressure herein and high pressure refer to respectively emery stick on the bistrique pressure to workpiece, more preferably, relative rotation speed between bistrique and workpiece is 150r/min, feed speed is 18m/min relatively.
In order further to optimize the technological scheme in above-described embodiment, mounting flange 3 in the present embodiment and sealing sheath 4 all adopt TIG weldering (Tungsten Inert Gas arc Welding inert gas tungsten electrode protection weldering) and the welding of telescopic pipe body, and the shielding gas adopting is pure argon, in welding process, weld seam form is fillet weld 5, square groove when welding, and this weld seam is positioned on the outer wall of telescopic pipe body, and mounting flange 3 and sealing sheath 4 adopt the mode of double-deck weldering to weld, as shown in Figure 3, welding wire in welding process preferably adopts Al-Si welding wire S311, gage of wire φ 3.0mm.
The welding current of bottom scolder when dual-layer welding is 230-240A, as 230A, 235A or 240A all can, the welding current of top layer scolder is 180-200A, as 180A, 190A or 200A all can, and the welding speed of bottom scolder and top layer scolder is 4-6mm/s, the airspeed of argon gas is 15-20L/min, and weldingvoltage is 10-15V.
For further optimized project, after the welding that completes mounting flange 3 and sealing sheath 4, in the present embodiment, also increase the step of smoothing endoporus and finish turning, further to improve the degree of finish in outer water pipe monomer 1 and internal layer water pipe monomer 2 endoporus, and repair the distortion that welding process ectomesoderm water pipe monomer and internal layer water pipe monomer occur.
Under normal circumstances, mounting flange 3 and sealing sheath 4 had bored mounting hole before welding, certainly, and in actual mechanical process, also can first carry out the welding of mounting flange 3 and sealing sheath 4, and then carry out the processing of the mounting hole on mounting flange 3 and sealing sheath 4.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and other embodiments' difference, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to these embodiments' multiple modification, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. the flexible water pipe of a fire-fighting truck, comprise flexible water pipe body and be arranged at mounting flange (3) and the sealing sheath (4) on described flexible water pipe body, described flexible water pipe body comprises outer water pipe monomer (1) and is sheathed on the inner internal layer water pipe monomer (2) of described outer water pipe monomer (1), it is characterized in that, described outer water pipe monomer (1) and described internal layer water pipe monomer (2) are the water pipe monomer of aluminum alloy material.
2. the flexible water pipe of fire-fighting truck as claimed in claim 1, is characterized in that, described outer water pipe monomer (1) and described internal layer water pipe monomer (2) are the water pipe monomer of 6061-T5 aluminum alloy material.
3. the flexible water pipe of fire-fighting truck as claimed in claim 1, is characterized in that, described mounting flange (3) and described sealing sheath (4) are 7075-T6 aluminum alloy.
4. a processing technology of stretching as described in claim 1 water pipe, is characterized in that, comprises step:
1) described outer water pipe monomer (1) and described internal layer water pipe monomer (2) are carried out respectively to excircle polishing;
2) outer surface of described internal layer water pipe monomer (2) is carried out to hard anodize;
3) endoporus of described outer water pipe monomer (1) and internal layer water pipe monomer (2) is carried out to honing processing;
4) welded and installed flange (3) and sealing sheath (4);
5) described outer water pipe monomer (1) and described internal layer water pipe monomer (2) are assembled into flexible water pipe.
5. the processing technology of flexible water pipe as claimed in claim 4, it is characterized in that, adopt grinding and polishing integrated machine to carry out excircle polishing to described outer water pipe monomer (1) and described internal layer water pipe monomer (2), and when polishing, bistrique is 35-40m/min with the relative feed speed of workpiece, and wheelhead pressure is 25-30MPa.
6. the processing technology of flexible water pipe as claimed in claim 4, it is characterized in that, adopt honing machine to carry out honing processing to described outer water pipe monomer (1) and described internal layer water pipe monomer (2), and bistrique when honing and the relative rotation speed of workpiece are 145-155r/min, feed speed is 15-20m/min relatively, low pressure is 20MPa, and high pressure is 25MPa.
7. the processing technology of flexible water pipe as claimed in claim 6, is characterized in that, bistrique when honing and the relative rotation speed of workpiece are 150r/min, and feed speed is 18m/min relatively.
8. the processing technology of flexible water pipe as claimed in claim 4, is characterized in that, described mounting flange (3) and described sealing sheath (4) adopt TIG weldering, and shielding gas is pure argon.
9. the processing technology of flexible water pipe as claimed in claim 8, it is characterized in that, the weld seam of described mounting flange (3) and described sealing sheath (4) is fillet weld (5), and described mounting flange (3) and described sealing sheath (4) adopt double-deck weldering mode to weld.
10. the processing technology of flexible water pipe as claimed in claim 9, it is characterized in that, the welding current of bottom scolder is 230-240A, the welding current of top layer scolder is 180-200A, and the welding speed of described bottom scolder and described top layer scolder is 4-6mm/s, and the airspeed of argon gas is 15-20L/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410112334.8A CN103883803B (en) | 2014-03-24 | 2014-03-24 | A kind of flexible water pipe of fire-fighting truck and processing technology thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410112334.8A CN103883803B (en) | 2014-03-24 | 2014-03-24 | A kind of flexible water pipe of fire-fighting truck and processing technology thereof |
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| CN103883803A true CN103883803A (en) | 2014-06-25 |
| CN103883803B CN103883803B (en) | 2016-03-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014781A (en) * | 2018-08-06 | 2018-12-18 | 常州朗卓机电科技有限公司 | A kind of processing technology of the flexible water pipe of fire fighting truck |
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| CN2047244U (en) * | 1989-01-13 | 1989-11-08 | 湖北省津宝铝合金制品合营有限公司 | Portable luggage handcart |
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| KR20090083266A (en) * | 2008-01-29 | 2009-08-03 | 신태욱 | Fire having atomizing a vaive |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109014781B (en) * | 2018-08-06 | 2021-05-07 | 常州朗卓机电科技有限公司 | Processing technology of fire fighting truck telescopic water pipe |
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| CN103883803B (en) | 2016-03-02 |
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