CN206988608U - Damping tube - Google Patents
Damping tube Download PDFInfo
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- CN206988608U CN206988608U CN201720213393.3U CN201720213393U CN206988608U CN 206988608 U CN206988608 U CN 206988608U CN 201720213393 U CN201720213393 U CN 201720213393U CN 206988608 U CN206988608 U CN 206988608U
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- adaptor
- bellows
- wire net
- protecting wire
- extension tube
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Abstract
The utility model embodiment discloses a kind of damping tube, including bellows, adaptor, extension tube attached, bellows includes the bellows main body of center section, at least one end of bellows main body sets axially extending bellows linkage section, bellows linkage section welds with adaptor, adaptor welds with extension tube attached simultaneously, bellows is fixed with extension tube attached by adaptor, adaptor has adaptor inner chamber, adaptor inner chamber connects with the inner chamber of bellows and the inner chamber of extension tube attached, damping tube also includes protecting wire net, the intermediate host of protecting wire net is set in bellows main body, the both ends of protecting wire net are fixed by protecting wire net fixture with adaptor, protecting wire net fixture is fixed at the both ends of protecting wire net with adaptor in a manner of compressing or clamping.The problem of bellows protecting wire net of the utility model embodiment is fixed with protecting wire net fixture with adaptor, and weld corrosion is not present in protecting wire net bearing, this is advantageous to improve the connection reliability between damping duct member.
Description
Technical field
The utility model embodiment is related to pipeline fitting, more particularly, to subtracting in the refrigeration system such as air conditioner, refrigeration machine
Shake pipe.
Background technology
In application scenarios such as air conditioner, refrigeration machines, compression is connected frequently with damping tube (or shock absorbing pipe, prevention tube etc.)
Machine and the circulation line of refrigeration system or other need the occasion of damping, vibrate and make an uproar as caused by compressor to absorb
Sound.
Damping tube generally comprises bellows, and in order to protect bellows, it would generally turn existing damping tube in end head welding
Take over to be welded with copper pipe.In order to prevent bellows from damaging, prior art can coat protecting wire net on the outside of bellows, the protecting wire net
Fixed using welding manner and transfer tube, specifically weld protecting wire net end face and transfer tube end face.The mounting means of this protecting wire net
Under, the aerial weld seam of exposure may have the possibility of corrosion, thus have impact on the company of damping duct member in a way
Reliability is connect, thus certain room for improvement be present.
Utility model content
The defects of for prior art, the purpose of the utility model embodiment is to provide a kind of damping tube, to improve
The connection reliability of damping tube.
In order to solve the above technical problems, the technical scheme that the utility model embodiment provides is：A kind of damping tube, including ripple
Line pipe, adaptor, extension tube attached, the bellows include the bellows main body of center section, and at least the one of the bellows main body
End sets axially extending bellows linkage section, and the bellows linkage section welds with the adaptor, and the adaptor is simultaneously
Welded with extension tube attached, the bellows is fixed with the extension tube attached by the adaptor, and the adaptor has in adaptor
Chamber, the adaptor inner chamber connect with the inner chamber of the bellows and the inner chamber of the extension tube attached, and the damping tube also includes shield
Net, the intermediate host of the protecting wire net are set in the bellows main body, the both ends of the protecting wire net by protecting wire net fixture with it is described
Adaptor is fixed, and the protecting wire net fixture is fixed at the both ends of the protecting wire net with the adaptor in a manner of compressing or clamping.
Compared with prior art, the bellows protecting wire net in the utility model embodiment damping tube using protecting wire net fixture and turns
Fitting is fixed, and the problem of being welded to connect due to being not used, therefore weld corrosion is not present herein, this is advantageous to improve damping duct member
Between connection reliability.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of the damping tube of specific embodiment of technical solutions of the utility model；
Fig. 2 is the axial cross-sectional views of damping tube shown in Fig. 1；
Fig. 3 is that damping tube shown in Fig. 1 removes the schematic diagram after the first extension tube attached, the second extension tube attached；
Fig. 4 is the axial cross-sectional views of damping tube shown in Fig. 3；
Fig. 5 is the schematic diagram of bellows in Fig. 1；
Fig. 6 is the axial cross-sectional views of bellows shown in Fig. 5；
Fig. 7 is the enlarged diagram of I parts in Fig. 6；
Fig. 8 is the schematic diagram of adaptor in Fig. 1；
Fig. 9 is the axial cross-sectional views of adaptor shown in Fig. 8；
Figure 10 is the schematic diagram of the first extension tube attached in Fig. 1；
Figure 11 is the cooperation sectional schematic diagram of the first extension tube attached shown in Figure 10 and the second extension tube attached；
Figure 12 is the enlarged diagram of II parts in Figure 11；
Figure 13 is the schematic diagram of the first extension tube attached in Figure 11；
Figure 14 is the cooperation sectional schematic diagram of the second extension tube attached and adaptor shown in Figure 12；
Figure 15 is the enlarged diagram of III parts in Figure 13；
Figure 16 is the idiosome schematic diagram of trim ring in Fig. 1；
Figure 17 is the flow chart of the damping pipe manufacturing method of the utility model one embodiment.
Embodiment
In order that those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail.
For convenience, the number range that the utility model is related to during being described for specification makes definition：One side
Face, threshold value include this number, as more than 2.5 be more than or equal to 2.5,10 within be equal to or less than 10, more than -8 to be more than or
Equal to -8, etc.；On the other hand, approximate number or approximate number calculate by ± the 10% of central value, such as about 15 refer to 15 ± 10%,
Substantially 3 refer to 3 ± 10%, mean 120 ± 10% equivalent to 6 for 6 ± 10%, substantially 120, close to 6.2 be 6.2 ±
10% ... ..., etc.；By that analogy, it is numerous.
Please referring also to Fig. 1~Figure 16, a kind of subtracting for specific embodiment of technical solutions of the utility model is shown respectively in it
Shake pipe and its bellows, adaptor, the modular construction such as idiosome of adapter and trim ring.In the drawings, pipe fitting axis is axially referred to
Direction, circumferentially refer to the circumference of vertical jointed tubular workpieces axis, be radially the radius of a circle direction for the jointed tubular workpieces axis that hangs down；Outside refers to away from ripple
The side of pipe, inner side are close to the side of bellows.Hereafter as non-specifically indicated, it is related to defining by this during above-mentioned term.
Please referring also to Fig. 1~Fig. 4, the damping tube of the utility model embodiment is by (first turn of bellows 1, adaptor 3a
Fitting), adaptor 3b (the second extension tube attached), extension tube attached 5 (the first extension tube attached), extension tube attached 6 (the second extension tube attached), braiding webmaster 2
And the part such as trim ring 4a, trim ring 4b is formed, wherein：Because adaptor 3a, adaptor 3b use identical structure in the present embodiment,
Therefore both are simply represented with adaptor 3 sometimes, and do not differentiate between 3a, 3b；Similarly, because trim ring 4a, trim ring 4b use phase
Same structure, therefore also simply represented sometimes with adaptor 4, and do not differentiate between 4a, 4b；Other damping tube can also be wherein one
Side uses the structure of this kind of adaptor or trim ring, the one end being particularly connected with vibroseis or relatively close vibroseis
One end.The basic structure of each part and function are as described below in damping tube.
The structure of bellows 1 refers to Fig. 5~Fig. 7, and it includes the bellows main paragraph 11 of center section, bellows main body
Axially extend bellows linkage section 12a (the first bellows linkage section), bellows linkage section 12b (the second ripples in the both ends of section 11
Line pipe linkage section), linkage section herein also holds as extension sometimes, and they are tubular structure, and their length is generally
Between 5mm~10mm；In addition in the case where bellows is bigger, length can be with proper extension；It is and particularly compact in structure
In the case of, bellows linkage section 12b length can be between 3mm~6mm.It is noted that due to the present embodiment medium wave
Line pipe linkage section 12a, bellows linkage section 12b use identical structure, therefore unify to be represented with bellows linkage section 12 sometimes, and
12a, 12b are not differentiated between, the both sides of bellows linkage section may not be symmetrical structure in addition.
As shown in figure 1, adaptor 3a, wherein adaptor 3b, adaptor is respectively welded in bellows linkage section 12a outboard end
3a connections extension tube attached 5, adaptor 3b connections extension tube attached 6；Between bellows linkage section 12a, extension tube attached 5 and adaptor 3a, and
Tentatively fixed between bellows linkage section 12b, extension tube attached 6 and adaptor 3b or spacing, can specifically be matched somebody with somebody with transition respectively
(design parameter is chosen as conjunction：The axle of cooperation is+0.03/0；The hole of cooperation is+0.04/0) mode assemble, and assembling is completed
Welded afterwards using welding manner in continuous tunnel furnace stove, it is described in detail below；It can also fix or limit using frock in addition
The mode of position is assembled, and assembly is welded using welding manner in continuous tunnel furnace stove；It can also use and get fixation ready
Mode or some part sets the mode of convex portion to make to be relatively fixed between adaptor, bellows, extension tube attached or spacing wherein,
Assembly is welded using welding manner in continuous tunnel furnace stove again, damping can be made than gas brazing by being welded using continuous tunnel furnace
The uniformity of pipe is relatively more preferable, and adaptor, bellows, extension tube attached weld the influence completed compared with separated welding on materials simultaneously
It is smaller.
The structure of adaptor 3 refers to Fig. 8~Fig. 9, and adaptor 3 has an adaptor inner chamber 32, the adaptor inner chamber 32 with
The inner chamber connection of bellows 1, adaptor is in the relative set solder portion of adaptor inner chamber 32 for placement solder (not shown).
The adaptor of bellows linkage section 12a, the junction difference socket joint of extension tube attached extension tube attached 5 in adaptor 3a inner chambers both ends coordinates
Portion, it is in throat structure that bellows linkage section 12a, extension tube attached 5, which can set guide section i.e. local,.It is bellows linkage section 12b, external
The junction of pipe 6 distinguishes socket joint
It interference fits, will not so be scattered when being placed into continuous tunnel furnace, also no longer need extra frock to fix.In addition, bellows connects
Connect and be provided with clearance portion between the inner chamber wall portion coordinated between section and adaptor, coordinate between the junction and adaptor of extension tube attached
Inner chamber wall portion also is provided with clearance portion.So, the solder that can make to be positioned in adaptor inner chamber during welding accordingly flows into after being melted down
Clearance portion between clearance portion between bellows linkage section and adaptor, and the junction and adaptor of extension tube attached and realize
Welding.
As shown in figure 1, bellows 1 can also configure braiding webmaster 2, further to protect the bellows in damping tube
1, braiding webmaster 2 can protect the outside of bellows 1, and bellows 1 will not be directly affected when by outer damage, weave webmaster 2
Specific optional stainless steel mesh grid set, it has relatively good intensity and toughness.After each pipe fitting completes welding, webmaster will be woven
It is set in bellows main paragraph 11 2 clad types, two terminations of the braiding webmaster 2 rotate into trim ring 4a, trim ring 4b respectively, and
Trim ring is deformed in a manner of extruding trim ring idiosome, braiding webmaster 2 is fixedly connected with trim ring, adaptor, such trim ring
Trim ring 4a, trim ring 4b welding procedure need not be eliminated again with adaptor or bellows-welding.Conveniently, Fig. 1
Horizontal impression 40 on middle trim ring 4 is that illustration shows this part, and they can be eliminated by polishing shaping, no longer superfluous
State.
As shown in Fig. 1~Fig. 2, the embodiment optimizes the welding structure of damping tube, and its weldment includes a ripple
Pipe 1, two adaptor 3a, 3b and two extension tube attacheds 5,6, wherein：Extension tube attached 5 can be common external for what is be connected with system
Such as copper pipe is managed, so in the case where system body is copper material, is advantageous to damping tube and is connected with system；Extension tube attached 6 can be
Extension tube attached with expansion mouth, they are respectively arranged with extension tube attached junction 52,62, and it is specific as shown in Figure 10~Figure 15.Two
Adaptor 3a, 3b can place solder, the bellows linkage section 12a of the one end of bellows 1 respectively in the ad-hoc location of adaptor inner chamber 32
Coordinate with the adaptor auxiliary section on the inside of adaptor 3a, the adaptor auxiliary section on the outside of extension tube attached junction 52 and adaptor 3a
Coordinate；Similarly, adaptor auxiliary sections of the bellows linkage section 12b of the other end with socket joint on the inside of adaptor 3b coordinates, outside
Adaptor auxiliary section on the outside of union nipple section 62 and adaptor 3b coordinates, and thus bellows 1 can divide with two extension tube attacheds 5,6
Welding is not fixed through continuous tunnel furnace welding by adaptor 3a, 3b.
The basic process of the damping tube comprises the following steps：Solder is placed respectively in adaptor 3a, 3b inner chamber, and
By the junction of bellows linkage section 12a, 12b of bellows 1, extension tube attached 5,6 respectively in the manner described above with corresponding adaptor
Auxiliary section, which coordinates, is placed, and after these parts are assembled into an entirety, the assembly for making to be assembled into is carried out in stove by continuous tunnel furnace
Welding is completed in soldering, can also be uniformly placed in addition in frock (not shown) by continuous tunnel furnace or other integrally molded equipment
As vacuum welding chamber or gas shielded welding room are welded.In welding process, solder can flow into bellows connection after being melted down
Gap between section 12a, extension tube attached junction 52 and adaptor 3a inner chamber, and bellows linkage section 12b, external pipe joint
Gap between section 62 and adaptor 3b inner chamber, is achieved in bellows 1 and corresponding two adaptors 3a, 3b and extension tube attached
5th, 6 welding.
It is worth noting that, to ensure that solder is flowed into bellows linkage section 12a, 12b, extension tube attached junction 52,62 and
Gap between corresponding adaptor 3a, 3b auxiliary sections inner chamber, should rationally design these gap parameters：Gap is too small, may cause
Solder can not effectively be permeated；Gap is excessive, and solder may penetrate adaptor and coordinate end surface, thereby result in outside weld seam
Dew, influences welding quality.In the present embodiment, in the present embodiment, the fit clearance of bellows linkage section and adaptor, bellows connect
The fit clearance for connecing section and adaptor is respectively：The fit clearance length of bellows linkage section and adaptor is bellows linkage section
The fit clearance length of more than 2 times of wall thickness, extension tube attached junction and adaptor is more than 2 times of extension tube attached junction wall thickness.
In a kind of specific embodiment, these fit clearances are 0.025mm~0.15mm, and fit clearance length is 5mm~15mm, so
Welding can be made relatively reliable, ensureing solder, effect is permeated as expected.
The characteristics of this welding manner is：Weld seam is located at corresponding bellows linkage section 12a, 12b outer wall, extension tube attached 5,6
Between the adaptor auxiliary section of the outer wall of junction and corresponding adaptor 3a, 3b inner chamber, i.e., weld seam is located inside adaptor.Weld seam
Bare area it is relatively small, and weld seam is located inside damping tube, it is internal in actual use be probably fluid media (medium) (such as
Internal flow is refrigerant during for refrigeration system), thus weld seam will not be exposed in air, so as to reduce weld seam and sky
The potential difference corrosion of gas contact；Meanwhile whole damping tube can only need once to weld and can complete, relative to gas brazing,
It is preferable to avoid bellows, extension tube attached and the multiple welding of corresponding adaptor, its weld seam uniformity；Due to these two aspects because
Element, is effectively improved damping tube welding quality, and the connection between product component is more reliable.In addition, integrally molded also simplify
Welding sequence, improve efficiency.
As shown in Figure 3, Figure 4, it is a kind of damping tube assembly of reduced form.As it was noted above, the embodiment in Fig. 1, Fig. 2 will
1, two adaptor 3a, 3b of one bellows and two progress of extension tube attached extension tube attacheds 5,6 are integrally molded, obtain complete damping tube
Component.It is understood that in actual production process, party in request can be answered to need only to turn an above-mentioned bellows 1, two
Fitting 3a, 3b are integrally molded to carry out, and are consequently formed the component of a reduced form, are specifically shown in Fig. 3, Fig. 4.This reduced form is made
After damping tube assembly, can further by it to compressor in refrigeration system, circulating line or other need the corresponding of damping occasion
Pipe fitting is welded, and to reach corresponding damping effect, will not be repeated here.In addition, the utility model embodiment can also be
The side of bellows is welded with adaptor, extension tube attached, and opposite side is fixed with corresponding adaptor and welded.
As shown in Fig. 5~Fig. 7, bellows 1 is preferably made up of stainless steel, and it includes bellows main paragraph 11 and ripple
Line pipe linkage section 12, wherein：Bellows main paragraph 11 has more than two telescopic joints, can compensate pipe fitting because of temperature change etc.
The parameter such as dilatation caused by factor, wherein inside diameter of bel D1, outside diameter of bel D2, thickness of convolution t, pitch of waves q need to be according to external
System element determines.A kind of selection mode of bellows 1 is in the present embodiment：External system caliber is 1/2 inch, ripple tube wave
Shape can be U-shaped or Ω shapes, overall length 225mm, caliber 12A, pipe range 151mm, bellows 0.2 ± 0.01mm of wall thickness, ripple
Bore D1 is 12 ± 0.2mm, and outside diameter of bel D2 is 18 ± 0.2mm, wave height 3.0mm, 2.0 ± 0.15mm of the thickness of convolution, and thickness of convolution t is
2.0 ± 0.15mm, pitch of waves q are 3.0 ± 0.15mm, are derived from the damping and silencing effect being more satisfied with；Certainly also can be according to outer
Welding system overall performance index sets other parameters.Herein, bellows linkage section 12a, 12b are located at bellows main paragraph respectively
11 both ends, can be with extension tube attached 5, extension tube attached 6 after adaptor 3a, 3b is loaded；Or directly with its in refrigeration system
Its external devices is welded.
It is understood that bellows 1 may produce certain flexible when using, its flexible stroke may when excessive
Produce damage.Bellows 1 can be configured with weaving webmaster 2, and it is specifically as follows stainless steel mesh grid, and it has preferably strong
Degree and toughness, the purpose of protection bellows 1 can be reached；Certainly, weave pipe network can also the protecting wire nets of other forms replace, example
Such as aluminium alloy protecting wire net.As shown in Figure 1 to 4, braiding webmaster 2 is set in bellows main paragraph 11, its termination and adaptor 3a,
3b is fixed, and the bellows 1 of damping tube can be prevented to be stretched beyond certain limit.Specifically, adaptor 3a, 3b outer wall is opened respectively
If adaptor unit with grooves in outer wall 33 (such as Fig. 8, Fig. 9), wherein this can be pressed in by webmaster 2 is woven by loading trim ring 4a, 4b
Adaptor unit with grooves in outer wall 33.The assembly method of this braiding webmaster 2, operates relatively simple, structural reliability is preferable.Due to
Trim ring 4a, 4b are to realize braiding webmaster, adapter by the way of crimping to fix, and be no longer by welding manner, i.e., without
It need to again be welded, thus avoid the problem of former welding position repeats welding and is likely to occur weld defect.
As shown in Fig. 8~Fig. 9, adaptor 3 is specially to be designed for the utility model damping tube.Each adaptor 3 includes
Adaptor body 31, it is connecting bellows 1 and extension tube attached 5 or extension tube attached 6.The adaptor body 31 can be by stainless steel material
, can be by being obtained to idiosome Vehicle Processing in technique or red copper material makes, or can also be formed by processing and forming.Adaptor
Body 31 has adaptor inner chamber 32, and adaptor inner chamber 32 connects to the inner chamber of bellows 1 and the inner chamber of corresponding extension tube attached 5,6,
And two ends of adaptor inner chamber 32 set adaptor auxiliary section 321, adaptor auxiliary section 322 to load ripple to correspond to respectively
Pipe 1 and extension tube attached 5 or 6 are welded.Preferably, the welding between each bellows linkage section and corresponding adaptor auxiliary section is matched somebody with somebody
More than 1/3 that length is bellows linkage section outside dimension is closed, between each extension tube attached junction and corresponding adaptor auxiliary section
Welding length of fit be extension tube attached junction outside dimension more than 1/3, so extend fusion length, be advantageous to increase weldering
Connect intensity.Certainly, the length of fit of these pipe fittings can respective range be adjusted, repeat no more.
When above-mentioned adaptor 3 is welded with bellows 1 and extension tube attached 5 or 6, be advantageous to improve welding quality, its reason
It is：By bellows 1 and corresponding extension tube attached 5 or 6 is encased in respective tube adaptor auxiliary section 321, adaptor auxiliary section 322 is carried out
During welding, their weld seam is located at corresponding bellows linkage section 12, extension tube attached 5 or the junction outer wall of extension tube attached 6 and switching
Between the adaptor auxiliary section of the both sides of part inner chamber 32, weld seam is hardly overflowed in the end face of adaptor inner chamber 32, is thus avoided
Or weld seam bare area is reduced, and weld seam is located in pipe, thus the influence of potential difference etching problem is avoid or reduced, thus
Improve pipe fitting connection reliability.
Can between bellows linkage section 12, extension tube attached 5 or extension tube attached 6 and the corresponding adaptor auxiliary section of adaptor inner chamber 32
Think that gap coordinates, can also be the mode of main body interference fits in addition, it is possible thereby to be welded using modes such as stove welderings, have
For body：Solder is placed in the inner chamber solder placement section of adaptor 3 in advance, then by extension tube attached, bellows 1 and adaptor 3
Chamber auxiliary section coordinates assembling, then whole component is carried out into stove weldering by soldering furnace or welding booth, or whole component is fixed on into work
Load onto and stove weldering is carried out by soldering furnace or welding booth.After solder fusing, adaptor auxiliary section 321 and outer is flowed under capillary action
Between the faying face of adapter, adaptor fit inside portion 322 and the faying face of bellows 1, it is achieved in being welded and fixed.
Specifically, the position of the solder placement section of each adaptor 3 as shown in Figure 8, Figure 9, wherein adaptor inner chamber 32
Middle part sets adaptor inner convex platform 323, and the adaptor inner convex platform 323 protrudes from the setting of adaptor inner wall part, adaptor inner convex platform
323 projecting height can be slightly larger than or the wall thickness equal to extension tube attached, or the projecting height of adaptor inner convex platform 323 can omit
More than or equal to the wall thickness of bellows linkage section.Solder is placed in two ends of the adaptor inner convex platform 323 as placement section,
Solder can be flowed into the faying face gap between the outer wall of bellows linkage section 12 and adaptor inner chamber 32 after being melted down.
It is it is understood that between extension tube attached 5 or extension tube attached 6 and adaptor 3 and similar.Specifically, in adaptor
Chamber 32 sets adaptor inner convex platform 323, the switching on the outside of adaptor between auxiliary section 321 and adaptor fit inside portion 322
The height of part inner convex platform 323 can also be consistent with the wall thickness of extension tube attached junction and the wall thickness of the linkage section of bellows 1, here unanimously
Refer to that both differ and be no more than 10%.So that the internal equivalent diameter of extension tube attached, the internal equivalent diameter of adaptor inner convex platform, ripple
The internal equivalent diameter size difference of pipe is no more than 10%, so as not to change the latus rectum size of whole damping tube, prevents fluid motion
Adversely affect.Now, the both ends of adaptor inner convex platform 323 are respectively as solder portion 324, solder portion 325, thus can be with
Corresponding solder (generally weld-ring) of placing comes to adaptor auxiliary section 321 and extension tube attached 5 or 6 and the and of adaptor auxiliary section 322
Auxiliary section faying face between bellows 1 is welded, so that extension tube attached 5 or 6, bellows 1 turn into one by adaptor 3
Individual entirety.
As it was previously stated, above damping tube can set braiding webmaster 2 to prevent from damaging.In a kind of embodiment, webmaster 2 is woven
For the braiding net sleeve of stainless steel, angle of weave is 40 °~60 °, and coverage rate is 75%~95%, and its intensity and Toughness Ratio are relatively managed
Think.Not using welding when the braiding webmaster 2 is fixed, therefore, the present embodiment has also carried out adaptability reform for adaptor 3.Such as
Shown in Fig. 8, Fig. 9, adaptor body 31 during fabrication can by going out adaptor unit with grooves in outer wall 323 to idiosome outer wall Vehicle Processing,
The both sides of the adaptor unit with grooves in outer wall 323 form adaptor outer wall flange 311, adaptor outer wall flange 322.In other words,
The both ends of the outer wall of adaptor body 31 can set the first adaptor outer wall flange 311, the second adaptor outer wall flange respectively
322, adaptor unit with grooves in outer wall 323 is formed between the first adaptor outer wall flange 311 and the second adaptor outer wall flange 322.
Described adaptor unit with grooves in outer wall 323 is used for loading trim ring 4a, 4b, by the way that the idiosome extruding of trim ring 4 can be configured bellows 1
Braiding webmaster 2 be installed in adaptor unit with grooves in outer wall 313, the wherein end face of trim ring idiosome 41 and the both sides of adaptor unit with grooves in outer wall 33
The medial surface of flange part is combined closely, and thus increases pressing friction power to fix braiding webmaster 2.This braiding webmaster fixed form
Due to without welding, thus avoiding weld defect.Other adaptor body 31 can be relatively close ripple in one end of outer wall
One end of pipe sets adaptor outer wall flange 311, and the other end can choose whether to set adaptor outer wall flange.In addition,
Other braiding webmaster fixture such as network folders etc. can be selected to be fixed.
As shown in Figure 8, Figure 9, the first adaptor outer wall flange 311, the second adaptor outer wall flange 312 can be set down respectively
Corner, wherein：The outside of first adaptor outer wall flange 311 sets the chamfered section 3111 of quarter turn, to facilitate trim ring 4 from the position
Put loading；The outside of second adaptor outer wall flange 3121 sets the chamfered section 3121 of semicircle, when braiding webmaster 2 is covered in the position
It will not cause to damage, chamfered section 3121 can be set in other words in the inner and outer of the second adaptor outer wall flange 3121 in other words
Smooth transitions or the structure that smoothly transits, webmaster 2 is woven with protection.
As it was previously stated, extension tube attached, bellows 1 need to be pressed into the both ends of adaptor 3 by the utility model damping tube in assembling
Auxiliary section welded.For the convenience of press fitting, it may be considered that set the problem of being oriented to.As Fig. 8, Fig. 9 show, on the outside of adaptor
The outer end of auxiliary section 321 sets guide face 326, is so easy to extension tube attached to be pressed into the adaptor auxiliary section 321；Same reason,
The outer end in adaptor fit inside portion 322 may also set up corresponding guide face to make extension tube attached 5 or 6 be smoothed out being pressed, and it does not exist
Indicated, therefore be will not be repeated here in Fig. 8, Fig. 9.
In refrigeration systems, bellows 1 and extension tube attached 5 are pressed into the corresponding adaptor auxiliary section of side adaptor 3 respectively,
Bellows 1 and extension tube attached 6 are pressed into the corresponding adaptor auxiliary section of opposite side adaptor 3 respectively, are then welded, its medium wave
It is respectively cooperating between auxiliary section between line pipe 1 and corresponding adaptor 3, extension tube attached 5 and extension tube attached 6 and corresponding adaptor 3, solder
The auxiliary section faying face that can be flowed to after fusing between corresponding pipe fitting and adaptor 3 welds to realize.In order to easy to assembly, guarantee weldering
Connect quality, it is necessary to which the structure of extension tube attached, bellows 1 is optimized.
As shown in Figure 1 and Figure 2, the utility model damping tube sets extension tube attached 5 and extension tube attached 6 simultaneously, it is to be understood that
One extension tube attached can be only set in the case of certain.Illustrate extension tube attached 5 and extension tube attached 6 and adaptor 3 below in conjunction with Figure 10~15
Between assembly relation.It is understood that bellows 1 can also use similar structures and assembly method.
As shown in Figure 10~12, extension tube attached 5 can be for example copper straight tube of copper pipe or bend pipe, and external tube body 51 needs to weld
One end extension tube attached junction 52, the end set extension tube attached junction guide face 54 of the extension tube attached junction 52, wherein leading are set
Be about 10 ° to angle (bus of extension tube attached junction guide face 54 with the bus angle of the external outer wall of tube body 51) α, be so easy to by
Extension tube attached 5 is pressed the corresponding auxiliary section into adaptor body 31.In addition, the extension tube attached 5 in Figure 10 accesses according in outer welding system
The difference of element, it may be necessary to which expansion mouth is set.
As shown in Figure 10~Figure 12, transition can be used between the auxiliary section of extension tube attached junction 52 and adaptor body 31
Coordinate.To improve mobility during solder fusing, ensure welding quality, multiple axial directions are set on the outer outer wall of union nipple section 52
The extension tube attached unit with grooves in outer wall 53 of extension, they can be formed by way of wire drawing or rolled thread or extruding, and its quantity can be external
Pipe caliber units (unit：Mm) 2~3.5 times, particular number can be depending on the size of width and extension tube attached.In addition,
The width and depth of unit with grooves in outer wall 53 can be between 0.025mm~0.15mm, and preferably 0.05mm~0.12mm, shaped cross can
Think that semicircle, arc is trapezoidal or square or V-arrangement etc.；By these extension tube attached unit with grooves in outer wall 53, can have solder preferable
Mobility, thus preferably ensure that welding quality.
Certainly, the side for the external pipe outer wall convex tendon (not shown) that above-mentioned extension tube attached unit with grooves in outer wall 53 can also be formed with wire drawing
Formula realizes that their shape, specification, arrangement can be similar with extension tube attached unit with grooves in outer wall 53.Make convex rib part and adaptor phase
To tight fit, the position between adjacent convex rib part is the flowing that solder can be achieved, and it has preferable mobility in welding.This
Sample, you can make to be relatively fixed without the help of outside frock between extension tube attached, adaptor or spacing.I.e. extension tube attached, adaptor be not
Need again by means of outside frock, can be achieved with reliably welding, repeat no more.It is understood that outer wall convex tendon can be with other
The convex portion of form replaces.
As shown in Figure 14~Figure 16, another extension tube attached 6 is the copper straight tube with expansion mouth 65.External tube body 61 is same
Extension tube attached junction 62 is provided with, the end set extension tube attached junction guide face 64 of the extension tube attached junction 62, its guide angle is (outside
The angle of the bus of union nipple section guide face 64 and the external outer wall of tube body 61) β is about 10 °；In addition, extension tube attached junction 62
The axial arranged a plurality of extension tube attached unit with grooves in outer wall 63 of outer wall or external pipe outer wall convex tendon or combinations thereof, its quantity can be external
Caliber units (the unit of pipe 6：Mm) 2~3.5 times, so as to ensure solder extension tube attached 6 and corresponding adaptor auxiliary section 321 it
Between there is preferable mobility.Other external tubular constructions that can refer to Figure 12~Figure 14, are repeated no more.It is in addition, outer in Figure 12
Adapter 6 is according to the difference of outward element, it is also possible to is not provided with expansion mouth.
Conveniently, can also be used when bellows 1 of the present utility model, extension tube attached 5, extension tube attached 6 are square tube above-mentioned
Structure；Correspondingly, adaptor 3 is also not necessarily limited to pipe.In addition, extension tube attached 5, extension tube attached 6 are not limited to straight tube, such as them generally
During bend pipe (auxiliary section is extension tube attached), it can also be attached using aforesaid way, damping tube now is equally with higher
Connection reliability, it will not be repeated here.
As shown in figure 16, trim ring 4 of the present utility model can with meet hardness and ductility requirement material (such as red copper or
Stainless steel) it is made.Above-mentioned material is specifically made to the trim ring idiosome 41 of ring-type, the size of its endoporus 42 is slightly larger than outside adaptor
The maximum outside diameter size of the side flanges of wall groove 33.Assembly method is：Bellows 1, adaptor 3a, 3b and extension tube attached is external
After pipe 5,6 welds, webmaster 2 will be woven and wrap at least most of of bellows 1 and the adaptor 3 at both ends, at least make mesh grid
Pipe 2 coats adaptor unit with grooves in outer wall, then the trim ring idiosome 41 is set at the adaptor unit with grooves in outer wall 33 of adaptor 3 and simultaneously
Braiding webmaster is set in, then makes its diminution by extruding trim ring idiosome 41, adaptor forms the trim ring of fixed braiding webmaster 2
4, thus obtain the damping tube external member with braiding webmaster 2.Herein, braiding webmaster 2 is specifically as follows stainless steel mesh grid set, its
Angle of weave is 40 °~60 °, and coverage rate is 75%~95%.
It is easily understood that when processing above-mentioned trim ring idiosome 41 can in its end reset guide face 43, can so facilitate
Trim ring idiosome 41 is smoothly encased at the adaptor unit with grooves in outer wall 33 of adaptor 3 by ground.The assembly method of this braiding webmaster 4 saves
Welding sequence has been removed, has not only been operated relatively simple, and structural reliability is higher.Herein, installed with unit with grooves in outer wall 33
Weave webmaster 2, naturally it is also possible to which holding part of the other forms structure as braiding webmaster, this holding part can be mesh grid pipe
2 provide the suitable frictional force of conjunction and extruding force, thus reach the purpose of reliable installation protecting wire net braiding webmaster 2.For other structures
The protecting wire net of form, similar structures can also be used.
More than a specific embodiment in, bellows 1, the material for weaving webmaster can be stainless steel material, extension tube attached
5th, extension tube attached 6, the material of adaptor can be copper material, and such damping tube can be used for the occasion that system main material is copper material, ripple
Wlding between line pipe 1 and adaptor 3, extension tube attached 5 or 6 and adaptor 3 can select same material such as spelter bronze, such as
A kind of specific embodiment is tin bronze solder, and its solder melt point can reach 1000 degree or so, as all 980 degrees Celsius with
On, it can preferably meet the welding requirements of stainless steel and copper, this solder melt point temperature is higher by common copper-based solder in addition
Such as phos copper, need to be welded and fixed with system even if damping tube is follow-up, because the solder melt point temperature of damping tube in itself will height
Go out 180 degree or so, so influence of the follow-up welding to damping tube also can very little.Other bellows can also select copper material
Material.Certainly, bellows 1 and adaptor 3, extension tube attached can also use different combinations of materials, now it should be noted that from other suitable
Wlding, such as：When being welded to aluminium alloy and stainless steel or steel, the optional aluminium of wlding, nickel, nickel alloy, titanium, titanium alloy, copper, copper close
Gold and silver in two or more, repeat no more.
In a kind of specific embodiment, the material selection red copper material of adaptor, correspondingly trim ring 4 also select red copper material,
So, the fixation of trim ring 4 is relatively reliable.In addition, the damping tube in this specification is referred to as prevention tube or shock absorbing pipe.
In another specific embodiment, bellows 1, the material for weaving webmaster can be stainless steel, extension tube attached 5, external
Pipe 6, the material of adaptor can also be aluminum material, and such damping tube can be used for the occasion that system main material is aluminium.
The damping tube of several specific embodiments of the present utility model is described above, its exemplary situations can be sky
Adjust the pipeline of the products such as device, refrigeration machine or automotive air-conditioning system.The compression of refrigeration system pipeline is connected by this damping tube
Machine and circulation line, it can preferably play shockproof effect.
The damping tubular construction to the utility model embodiment is illustrated above, on this basis, now to damping tube
Manufacture method is described.
Figure 17 is referred to, it shows the damping pipe manufacturing method of the utility model one embodiment.Damping tube manufacturer
Method includes：Part pretreatment process, solder place process, pipe fitting assembling procedure, braiding webmaster installation procedure, product handling system work
The concrete operation step of sequence etc., wherein each operation and effect are as follows.
1st, part pretreatment process
The step obtains the satisfactory parts such as part such as bellows, adaptor and extension tube attached.These parts should
Meet claimed below：Bellows includes the bellows main body of center section, and at least one end setting of bellows main body is axially extending
Bellows linkage section；Adaptor has adaptor inner chamber, and the middle part of adaptor inner chamber sets solder portion, adaptor inner chamber
Both ends adaptor auxiliary section is set, in addition, should also include the other structures in previous corrugated pipe, repeat no more.These parts
Can voluntarily it process, can also outsourcing.
Specifically, part pretreatment process can be omitted such as in the case of outsourcing, and this process is completed by outside, tool
Body includes the processing to bellows, adaptor and extension tube attached, described in detail below.
The preparation of bellows is included to the processes such as the blanking of bellows former material, chamfering, whole mouth, ultrasonic wave cleaning, these processes
Normal process steps can be used to operate, satisfactory bellows is can obtain after completing these operations.
Adaptor treatment process includes processing adaptor embryo material corresponding adaptor inner chamber, adaptor inner convex platform and turned
Fitting unit with grooves in outer wall, be derived from satisfactory adaptor, its can preferably as switching carrier come connect bellows and
Extension tube attached.
Extension tube attached treatment process includes cleaning the blanking of extension tube attached former material, chamfering, wire drawing, ultrasonic wave, is met the requirements
Extension tube attached.Usually, these extension tube attacheds can be determined whether to do enlarging processing as needed.
In addition, part pretreatment process also needs to carry out braiding webmaster the processes such as blanking, ultrasonic wave cleaning；And to pressure
Enclose the processes such as idiosome blanking, ultrasonic wave cleaning；Etc..After completing these work, it is possible to carry out other systems of whole damping tube
Make process, it is described below.
2nd, solder places process
Solder is put in the solder portion of adaptor inner chamber by the process in advance.Wherein, the melting temperature of conventionally used solder
800 degrees centigrades, but to make the welding of damping tube relatively reliable, solder such as bronze not less than 980 degrees Celsius can be selected
Solder etc..
3rd, pipe fitting assembling procedure
Complete after i.e. solder is placed after above-mentioned work, pipe fitting sub-assembly to can be assembled, by adaptor, bellows, extension tube attached three
Person carries out assembling and forms the pipe fitting sub-assembly that is integrated to carry out next few welding, and specific assembling mode is as described below.Tool
Body is to be assembled these bellowss, adaptor, extension tube attached etc., bellows is coordinated with adaptor in adaptor auxiliary section,
Adaptor, extension tube attached coordinate in another adaptor auxiliary section so that the inner chamber connection of adaptor, bellows, extension tube attached, if ripple
It is interference fits or interference fit to have between line pipe and adaptor, adaptor and extension tube attached local, then three is without outside frock
It is fixed, if three gap coordinates, can be fixed with outside frock it is spacing after, obtain pipe fitting sub-assembly.Specific assembling side
Formula can be one below：
Bellows, extension tube attached and adaptor are assembled into one, and with get ready fixed form or bellows, extension tube attached with
After one of adaptor sets the mode of convex portion to be fixed or be spacing, bellows is obtained, extension tube attached combines with the pipe fitting of adaptor
Part；
Bellows, extension tube attached and adaptor are assembled into one, and tentatively fixation or spacing is carried out with transition fit system
Afterwards, to the pipe fitting sub-assembly of bellows, extension tube attached and adaptor；
Bellows and extension tube attached are pressed by interference fits mode respectively and carry out tentatively fixation or spacing in adaptor, and
To the pipe fitting sub-assembly of bellows, adaptor and extension tube attached.Cooperation wherein between bellows linkage section and adaptor auxiliary section
Gap is more than 2 times of bellows linkage section wall thickness, and the fit clearance between extension tube attached junction and adaptor auxiliary section is outer
More than 2 times of union nipple section wall thickness.
Afterwards, sub-assembly can be placed in integrated welding equipment and is welded.
4th, components welding process
In the process, pipe fitting sub-assembly is welded, obtains damping tube main body.Specifically, pipe fitting sub-assembly is placed
Welded in welding equipment, more specifically such as, in continuous tunnel furnace, vacuum welding chamber or gas shielded welding room or welding case
Pipe fitting sub-assembly is welded, now welding temperature, time etc. are according to these device parameters, the external pipe fitting main material of weldering and solder
Deng determination.
5th, net installation procedure
The effect of installation braiding webmaster is to prevent that bellows is damaged in damping tube, and its detailed process is：In damping tube master
The bellows main paragraph suit braiding webmaster of body；Adaptor unit with grooves in outer wall is placed in the present embodiment mesh grid tube end；Braiding
Mesh grid tube end is fixed on adaptor unit with grooves in outer wall by webmaster fixture, obtains prevention tube.Wherein, webmaster fixed form is woven
Can be：Trim ring idiosome is inserted in the end of braiding webmaster, extruding trim ring idiosome makes it deform and press the end for weaving webmaster
The adaptor unit with grooves in outer wall of adaptor is tightly fixed on, so net can be fixed without welding, thus obtain with protective action
Prevention tube finished product.The adaptor unit with grooves in outer wall of other adaptor can also be substituted by other structures, such as in adaptor close to ripple
Line pipe side sets the mode of convex portion.
6th, product handling system process
This process be alternatively, obtaining prevention tube after, can further be tested, be dried, mouth of pipe shaping, bag
After dress, so that it may obtain the product that dispatches from the factory of prevention tube.This prevention tube finished product uses bellows, adaptor and extension tube attached three once
Property stove in weld, its product one is straightforward relatively good, and solder design is more reliable, and because weld seam is located on the inside of damping tube, right
The service life of product is favourable.
The detailed description carried out above to embodiment to the utility model, but to the ordinary skill people of the art
For member, on the premise of the utility model principle is not departed from, some improvement and modification can also be carried out to the utility model, this
It is a little to improve and modify the protection domain for also falling into the utility model claims.
Claims (10)
1. a kind of damping tube, including bellows, adaptor, extension tube attached, the bellows includes the bellows main body of center section,
At least one end of the bellows main body sets axially extending bellows linkage section, it is characterised in that the bellows connection
Section is welded with the adaptor, and the adaptor welds with extension tube attached simultaneously, and the bellows passes through described with the extension tube attached
Adaptor is fixed, and the adaptor has an adaptor inner chamber, the inner chamber of the adaptor inner chamber and the bellows and described outer
The inner chamber connection of adapter, the damping tube also include protecting wire net, and the intermediate host of the protecting wire net is set in the bellows main body, institute
The both ends for stating protecting wire net are fixed by protecting wire net fixture and the adaptor, and the protecting wire net fixture will in a manner of compressing or clamp
The both ends of the protecting wire net are fixed with the adaptor.
2. damping tube as claimed in claim 1, it is characterised in that it is recessed that the outer wall of the adaptor is provided with adaptor outer wall
The both ends of the protecting wire net are fixed on the adaptor unit with grooves in outer wall by groove, the protecting wire net fixture, and the adaptor leans on relative
The nearly bellows body side is provided with flange part, and the outside contacted with the protecting wire net of the flange part is the knot that smoothly transits
Structure, the protecting wire net fixture is at least partly less than the flange part and the protecting wire net fixture at least partly turns positioned at described
Fitting unit with grooves in outer wall.
3. damping tube as claimed in claim 1, it is characterised in that the outer wall of the adaptor is provided with holding part, the shield
The both ends of the protecting wire net are fixed on the holding part by net fixture, and the adaptor is in the relatively close bellows main body one
Side is provided with flange part, and the holding part is located at the side for being relatively distant from the bellows main body of the flange part, described convex
The outside contacted with the protecting wire net of edge is the structure that smoothly transits, and the protecting wire net fixture is at least partly less than the flange
The portion and protecting wire net fixture is at least partly located at the holding part.
4. the damping tube as described in claim 1-3 is any, it is characterised in that the outer wall of the adaptor be provided with holding part or
Unit with grooves in outer wall, the protecting wire net fixture are trim ring, and the trim ring has deformable trim ring idiosome, and the trim ring idiosome is by squeezing
The both ends of the protecting wire net are fixed the unit with grooves in outer wall in the holding part or the adaptor, the protecting wire net and institute by pressure mode
State between adaptor, the protecting wire net fixture not over being welded and fixed.
5. damping tube as claimed in claim 2, it is characterised in that the protecting wire net fixture is network folder, and the network folder is set in
The protecting wire net is locked at the unit with grooves in outer wall of the adaptor with network folder locking member by the both ends of the protecting wire net, the network folder.
6. the damping tube as described in claims 1 to 3,5 any one, it is characterised in that the protecting wire net is stainless steel mesh grid set,
The angle of weave that the stainless steel mesh grid is compiled is 40 °~60 °, and coverage rate is 75%~95%.
7. the damping tube as described in claims 1 to 3,5 any one, it is characterised in that the adaptor inner chamber is provided with switching
Part inner convex platform, the inner convex platform are located at the inner chamber of the adaptor with respect to middle part, and the first side of the inner convex platform is the ripple
Pipe linkage section, the weld seam of the bellows and the adaptor are located at the side of inner convex platform first；Second side of the inner convex platform
For the extension tube attached, the extension tube attached and the weld seam of the adaptor are located at the side of inner convex platform second.
8. damping tube as claimed in claim 7, it is characterised in that the internal equivalent diameter of the extension tube attached, the adaptor convex
The internal equivalent diameter size of the internal equivalent diameter of platform and bellows difference is no more than 10%.
9. damping tube as claimed in claim 7, it is characterised in that two end set solders of the adaptor inner convex platform
Portion, and have between the bellows linkage section, the extension tube attached junction and corresponding adaptor auxiliary section in axially extending
The fit clearance of setting, the fit clearance are 0.025mm~0.15mm, and the fit clearance length is 5mm~15mm.
10. damping tube as claimed in claim 9, it is characterised in that the outer wall of the extension tube attached junction is provided with a plurality of axle
Outer wall convex tendon and/or unit with grooves in outer wall to extension form the fit clearance, the number of the outer wall convex tendon and/or unit with grooves in outer wall
Measure as 2~3.5 times of the extension tube attached caliber units, specification is 0.05mm~0.12mm, and cross sectional shape is semicircle, arc
One of shape, trapezoidal, square or V-arrangement.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720213393.3U CN206988608U (en) | 2017-03-06 | 2017-03-06 | Damping tube |
| JP2019549405A JP6948402B2 (en) | 2017-03-06 | 2018-03-06 | Vibration control pipe and its manufacturing method |
| US16/491,084 US11674620B2 (en) | 2017-03-06 | 2018-03-06 | Vibration absorption tubing and manufacturing method thereof |
| PCT/CN2018/078095 WO2018161882A1 (en) | 2017-03-06 | 2018-03-06 | Vibration absorption tubing and manufacturing method thereof |
| EP18763270.8A EP3594602B1 (en) | 2017-03-06 | 2018-03-06 | Vibration absorption tubing and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720213393.3U CN206988608U (en) | 2017-03-06 | 2017-03-06 | Damping tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206988608U true CN206988608U (en) | 2018-02-09 |
Family
ID=61422181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720213393.3U Active CN206988608U (en) | 2017-03-06 | 2017-03-06 | Damping tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206988608U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533850A (en) * | 2017-03-06 | 2018-09-14 | 新昌县四通机电有限公司 | Damping tube |
-
2017
- 2017-03-06 CN CN201720213393.3U patent/CN206988608U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533850A (en) * | 2017-03-06 | 2018-09-14 | 新昌县四通机电有限公司 | Damping tube |
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