CN106624598A - Loop heat pipe evaporator assembling tool and assembling method - Google Patents
Loop heat pipe evaporator assembling tool and assembling method Download PDFInfo
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- CN106624598A CN106624598A CN201611064923.9A CN201611064923A CN106624598A CN 106624598 A CN106624598 A CN 106624598A CN 201611064923 A CN201611064923 A CN 201611064923A CN 106624598 A CN106624598 A CN 106624598A
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- frock
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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
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K15/00—Electron-beam welding or cutting
- B23K15/04—Electron-beam welding or cutting for welding annular seams
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to a loop heat pipe evaporator assembling tool and an assembling method mainly used for assembling an evaporator in a loop heat pipe and belongs to the technical field of two phase heat transmission of a loop heat pipe. According to the invention, on one hand, interference fit between a capillary core and a metal outer shell is realized, the situation that the capillary core does not crack after being mounted in the metal outer shell is ensured, the hot charging success rate is high, small-scale production can be met, the production cost is reduced, and the production efficiency is improved; and on the other hand, the surface of the capillary core is not scratched, powder does not fall off the surface of the capillary core, the product surface is free of oxidation and pollution, and the service life and the reliability of the product are prolonged and improved.
Description
Technical field
The present invention relates to a kind of assembly tool and assemble method for loop heat pipe evaporator, is mainly used in loop circuit heat pipe
The assembling of middle evaporimeter, belongs to loop circuit heat pipe two-phase technical field of heat transfer.
Background technology
Loop circuit heat pipe two-phase heat transfer technology is one of thermal control technology of current spacecraft thermal control field forefront, and it has
High heat-transfer performance, long-distance transmissions heat, antigravity ability are strong, convenient and flexible installation and operational reliability is high, working life
Long many advantages, such as.Evaporimeter is the core component of loop circuit heat pipe, and the normal service requirement evaporimeter of loop circuit heat pipe is provided simultaneously with
Absorb thermic load and working medium circulation power dual-use function is provided, evaporimeter has important to loop circuit heat pipe runnability and reliability
Affect.
Loop heat pipe evaporator is formed by hot-mounting process elastic conjunction by capillary wick and metal shell.Domestic at present
Capillary wick is only arranged in evaporimeter, during Ground Application, can be by adjusting capillary wick attitude, and liquid flows by gravitational force into evaporimeter
It is interior to be infiltrated with guarantee capillary wick；And under in-orbit microgravity environment, most liquid are randomly distributed in reservoir in droplet form,
Capillary wick has the dry possibility in local in evaporimeter section, and this will make loop circuit heat pipe there is the risk for starting failure or outage.
To overcome the technical risk, as shown in Fig. 1,2, metal shell is by main casing A and master for existing evaporation structure form
Shell B two parts are welded, and capillary wick is fitted close by elastic conjunction with metal shell and a capillary wick part stretches out gold
Category shell.Main casing A is cylinder thin-wall construction, and material is nickel alloy, and main casing A first passes around grinding and forms high accuracy cylinder
Face, then forms a series of grooves at inner headed face by wire cutting, finally welds to form metal shell with main casing B.Main casing B is
Cylinder thin-wall construction and one end is designed with circular flange, material is stainless steel, and rectangular aperture at 8 is designed with cylinder thin-walled.Hair
Thin core is formed by alpha-silicon nitride powders are sintered, and subsequently through machining high precision excircle surface is formed.Metal shell and capillary
Core is in close contact by interference fit, and a series of autonomous closure that metal shell inner surface forms grooves with capillary wicking surface is empty
Between, operation passage is provided for cycle fluid, this is the critical process of evaporimeter assembling.
Hot-mounting process is a kind of special assembly technique, by making its internal diameter expansion to external member heating, so as to shape
Into fit-up gap so that reach the purpose of elastic conjunction between external member and internal member.The method be widely used in aviation,
Auto industry field.
Conventional evaporator hot-mounting process is used for the assembling of above-mentioned evaporimeter and there is following drawback：First, main casing A and main casing B
Deformation control difficulty is big after welding, causes main casing A poor with main casing B axialities (i.e. metal shell cylindricity), and hot charging process
Middle capillary wick is long with the assembling stroke of metal shell, easily stuck with capillary wick, must ensure that main casing A and main casing B is high same after welding
Axle degree is required；Secondly, it is to ensure loop circuit heat pipe long life requirement, it is desirable to evaporator surface non-oxidation during hot charging, need to be true
Assembled in empty stove, manually cannot directly be operated, automatic assembling need to be realized；Moreover, because capillary wick is elongated rods structure, and
Form for powder sintered, bending strength is low, if bear moment of flexure during capillary wick insertion metal-back easily fractureing；Finally, it is main
There is groove in shell A inner surfaces, capillary wick easily scratches capillary wicking surface with main casing A frictions during hot charging, causes capillary wicking surface powder
End comes off, and forms fifth wheel, affects life of product.
The content of the invention
The present invention technology solve problem be：Overcome the deficiencies in the prior art, propose a kind of for loop heat pipe evaporator
Assembly tool and assemble method.
The present invention technical solution be：
A kind of assembly tool for loop heat pipe evaporator, the assembly tool includes first set frock, second set of frock
With the 3rd set of frock；
Described first set frock includes plug, balancing weight, limited block, connecting rod one, upper flat plate, support column, base plate；
Upper flat plate, base plate are by support column threaded connection composition support platform component；
Upper flat plate, base plate are provided with manhole；
Main casing A, main casing B are coordinated by end face, and flange is placed on upper flat plate in main casing B；
In plug insertion main casing A；
Connecting rod one is connected through one end after manhole on main casing A, main casing B, upper flat plate with core rod screw thread, connecting rod one
The other end is threadedly coupled with balancing weight；
Limited block is arranged in the manhole of base plate, main casing A, main casing B, plug, balancing weight, connecting rod one, limited block
Center line is located on the same line；
Second set of described frock include plug, balancing weight, limited block, main casing B support bases, connecting rod two, upper flat plate,
Dagger, base plate；
Upper flat plate, base plate are by support column threaded connection composition support platform component；
Upper flat plate, base plate are provided with manhole；
In plug insertion main casing A；
Main casing B is coordinated by round flange with main casing B support bases end face, and main casing B support bases are placed on upper flat plate；
Connecting rod two is through one end and plug spiral shell after the manhole on main casing A, main casing B, main casing B support bases, upper flat plate
Line connects, and the other end of connecting rod two is threadedly coupled with balancing weight；
Limited block is arranged in the manhole of base plate, main casing A, main casing B, plug, balancing weight, connecting rod two, main casing B
Support seat, limited block center line are located on the same line；
The 3rd set of described frock includes balancing weight, upper flat plate, support column, base plate, limited support bar, external thread sleeve, interior
Thread bush, protection terminal, main casing are helped pull a cart, steel ball, steel ball seat, capillary core print seat, collet；
Upper flat plate, base plate are by support column threaded connection composition support platform component；
Upper flat plate, base plate are provided with manhole；
Steel ball is located between steel ball seat and capillary core print seat；
The cylindrical section of steel ball seat lower end is fallen into the counterbore on limited support bar top；
The cylindrical section of limited support bar lower end is arranged in the manhole of base plate；
One end of capillary wick coordinates with capillary core print seat end face, the other end and the interference fit section of protection terminal of capillary wick
End face coordinates, and the first cylindrical section for protecting terminal is extend into the inner chamber of capillary wick；
Interference fit section in protection terminal is engaged with main casing A endoporus；Protection terminal in guiding conical section, second
Cylindrical section and guide cylinder Duan Jun are extend into the endoporus of main casing A；
Main casing is helped pull a cart as hollow cylinder structure, and the bottom that main casing is helped pull a cart carries boss, and the upper end that main casing is helped pull a cart is by clamping
Mechanism is enclosed within the outside of main casing A, and the bottom boss that main casing is helped pull a cart is connected with balancing weight, and main casing is helped pull a cart in the Action of Gravity Field of balancing weight
Lower pulling main casing A.
Described steel ball isSteel ball, steel ball seat is stepped cylindrical configuration, and two ends body diameter is little, intermediate cylindrical
Diameter is big, and its tip designs has " ∨ " shape groove to place steel ball.
Described capillary core print seat is concave structure, and steel is loaded in Baltimore groove to be had, the big institute of the intermediate cylindrical diameter of steel ball seat
The mandrel material stated for molybdenum alloy cylindrical structural, including linkage section, the first cylindrical section, interference fit section, the second cylindrical section,
Wherein interference fit section diameter is identical with capillary core diameter, and cylindricity is 0.004, and interference fit segment length is main casing B length
1.5-2.5 times, remainder diameter 0.3～0.5mm little compared with interference fit section diameter, plug overall length is compared with main casing A, main casing B length
Sum 30～50mm of length；In the interference fit section insertion main casing A of plug.
Described the protect cylindrical structural that terminal is molybdenum alloy, including the first cylindrical section, interference fit section, circular cone is oriented to
Section, the second cylindrical section, cylinder guide section, wherein interference fit section is identical with capillary core diameter, and length is 3～6mm；Circular cone is oriented to
Section taper angle is 10 °～20 °, cylinder guide section diameter 0.3～0.5mm little compared with interference fit section diameter, and protection terminal overall length is about
20～30mm, the first cylindrical section has internal thread hole.
Described limited support bar is stepped cylindrical configuration, and two ends body diameter is little, and intermediate cylindrical diameter is big, its top
End carries counterbore, and when being connected with limited support bar, the cylindrical section of steel ball seat lower end falls into counterbore steel ball seat.
Described steel ball seat, steel ball, capillary core print seat composition movable support mechanism.
The step of one kind carries out loop heat pipe evaporator assemble method, the method using frock includes：
(1) plug is loaded：
Main casing A, main casing B and first set frock are assembled at normal temperatures, then puts main casing A, main casing B and first set frock
Enter heating in vacuum drying oven, insulation, cooling, now plug is dropped into main casing A, main casing B, then by main casing A, main casing B and plug
The assembly of formation integrally splits out from first set frock；
(2) main casing welding：
Main casing A, main casing B carry out vacuum electronic beam ring at the gap that end face coordinates in the assembly that step (1) is obtained
Weld one week, make main casing A, main casing B connect into an entirety, after the completion for the treatment of main casing A, main casing B welding, main casing A, main casing B, plug are whole
Body is proceeded to and exits plug process；
Exit plug：
Main casing A, main casing B that step (2) is obtained and plug are overall equipped with second set of frock, are then placed into vacuum drying oven
Interior heating, insulation, cooling, now plug exit from main casing A and main casing B, it is then that main casing A, main casing B is overall from second set of work
Under assembly and disassembly, loading capillary wick process is proceeded to；
(4) capillary wick is loaded：
At normal temperatures, the main casing A for step (3) being obtained and main casing B and capillary wick and the 3rd set of frock assembling, it is then whole
Body is positioned over heating in vacuum drying oven, insulation, cooling, so as to capillary wick be fitted into main casing A and main casing B；Wherein capillary wick bottom
The movable support mechanism constituted by limited support bar and by steel ball seat, steel ball, capillary core print seat is supported, capillary core head with
Protection terminal end face coordinates, and guide section is put in main casing A inner chambers in protection terminal, and interference fit section is stuck in main casing in protection terminal
At A lumen openings, main casing A peripheries are clamped in main casing upper end of helping pull a cart, and main casing is helped pull a cart and holds main casing under the Action of Gravity Field of balancing weight
A；Under gravity, capillary wick adapts to the gravity direction of balancing weight around steel ball swing automatically, it is ensured that capillary wick is held all the time
Gravity is in the axial direction received.
In described step (1), step (3) and step (4), the vacuum of vacuum drying oven is due to 10-3Pa, heating-up temperature is
440-460 DEG C, heating rate is 10 DEG C/min, and temperature retention time is 1h, then cools to 50 DEG C with the furnace.
In described step (2), the parameter of vacuum electron beam boxing is：Vacuum is due to 7*10-2Pa, accelerating potential is 5
Wan Fu, focus current is 650mA, and speed of welding is 1m/min, and welding line is 10-15mA.
The beneficial effect that reached of the present invention is：
(1) plug ensure that main casing A, main casing B vacuum electron beam weldings are forward and backward with good axiality, while
During " exiting plug ", plug plays hot sizing effect, while and eliminate and know clearly welding stress, it is ensured that plug is main after exiting
Shell A, main casing B good axiality, this is the key that follow-up capillary wick can successfully load；
Movable device support is designed with (2) the 3rd sets of frocks, it is ensured that capillary wick bears all the time gravity, it is to avoid bear curved
Square, and will not rupture from capillary wick, hot charging success rate is high, can meet small lot batch manufacture, reduces production cost, improves production effect
Rate；
(3) due to protecting terminal protecting during capillary wick hot charging, it is ensured that capillary wicking surface is without scuffing and de- without powder
Fall, it is ensured that life of product and reliability, carry out in vacuum drying oven during whole hot charging, it is product surface non-oxidation, pollution-free.
(4) frock of the invention and assemble method, are mainly used in the assembling of evaporimeter in loop circuit heat pipe, belong to loop circuit heat pipe
Two-phase technical field of heat transfer.First by plug with main casing A, main casing B by being heated in vacuum drying oven, being incubated, cool down so that core
Rod loads main casing A, main casing B, realizes elastic conjunction.Secondly vacuum electron beam boxing is carried out to main casing A, main casing B so as to connect into
It is overall；Then, first plug is passed through to be heated in vacuum drying oven, is incubated, cools down with main casing A, main casing B so that plug is exited.
Finally, in a vacuum furnace capillary wick heated, is incubated, cooled down with main casing A, main casing B so that capillary wick is successfully loaded main casing
In A, main casing B, and elastic conjunction is realized, capillary wick will not occur fracture and surface nondestructive is hindered.One aspect of the present invention can be realized
Interference fit between capillary wick and metal shell, and ensure that capillary wick is fitted into metal shell and will not rupture, hot charging success rate is high,
Small lot batch manufacture can be met, production cost is reduced, on the other hand improve production efficiency ensure that capillary wicking surface without scuffing
And without shed powder, it is product surface non-oxidation, pollution-free, improve life of product and reliability.
Description of the drawings
Fig. 1 is the dimensional structure diagram of existing evaporimeter in prior art；
Fig. 2 is the structural representation of existing evaporimeter in prior art；
Fig. 3 is the structural representation of the plug of the present invention；
Fig. 4 is the structural representation of the protection terminal of the present invention；
Fig. 5 is into stokehold, main casing A, main casing B and first set frock assembling structure diagram；
Fig. 6 is that plug loads structural representation after main casing A, main casing B；
Fig. 7 is into stokehold, main casing A, main casing B and second set of frock assembling structure schematic diagram；
Fig. 8 is into stokehold, main casing A, main casing B, capillary wick and the 3rd set of frock assembling structure schematic diagram；
Fig. 9 is enlarged drawing I in Fig. 7；
Figure 10 is the middle-grade big figures II of Fig. 7.
In figure：1. main casing A；2. main casing B；3. capillary wick；4. plug；5. balancing weight；6th, limited block；7. connecting rod one；8.
Gripper shoe；9. support column；10. base plate；11. main casing B support bases；12. connecting rods two；13. limited support bars；14. screw thread pressure heads；
15. external thread sleeves；16. protection terminals；17. main casings are helped pull a cart；18. steel balls；19. steel ball seats；20. capillary core print seats；21. clamping sleeves.
Specific embodiment
With reference to the accompanying drawings and examples the invention will be further described.
Embodiment
A kind of assembly tool for loop heat pipe evaporator, the assembly tool includes first set frock, second set of frock
With the 3rd set of frock；
As shown in figure 5, described first set frock includes plug 4, balancing weight 5, limited block 6, connecting rod one 7, upper flat plate
8th, support column 9, base plate 10；
As shown in fig. 7, second set of described frock includes plug 4, balancing weight 5, limited block 6, main casing B support bases 11, company
Extension bar 2 12, upper flat plate 8, support column 9, base plate 10；
As shown in Fig. 8, Fig. 9 and Figure 10, the 3rd set of described frock includes balancing weight 5, upper flat plate 8, support column 9, base plate
10th, limited support bar 13, external thread sleeve 14, inner screw sheath 15, protection terminal 16, main casing help pull a cart 17, steel ball 18, steel ball seat 19,
Capillary core print seat 20, collet 21.
As shown in figure 3, cylindrical structural of the material of the plug 4 for molybdenum alloy, including linkage section 41, the first cylindrical section
42nd, interference fit section 43, the second cylindrical section 44, the wherein diameter of interference fit section 43 is identical with the diameter of capillary wick 3, and cylindricity is
0.004, and interference fit segment length is main casing B length 1.5-2.5 times, remainder diameter is little by 0.3 compared with interference fit section diameter
～0.5mm, the overall length of plug 4 is compared with main casing A, main casing B length sum 30～50mm of length；
As shown in figure 4, cylindrical structural of the described protection terminal 16 for molybdenum alloy, including the first cylindrical section 161, interference
Coordinate section 162, circular cone guide section 163, the second cylindrical section 164, wherein cylinder guide section 165, interference fit section 162 and capillary wick
Diameter is identical, and length is 3～6mm；The taper angle of circular cone guide section 163 is 10 °～20 °, and the diameter of cylinder guide section 165 is matched somebody with somebody compared with interference
Little 0.3～the 0.5mm of section diameter is closed, terminal overall length about 20～30mm is protected；
Remaining parts adopt 1Cr18Ni9Ti stainless steels in the first set frock, second set of frock, the 3rd set of frock
Manufacture, its concrete size is adapted with the physical dimension of evaporimeter.
All parts are both needed to be cleaned and Jing high temperature is removed in the first set frock, second set of frock, the 3rd set of frock
Oil processing.
The annexation of described first set frock is as follows：
As shown in fig. 6, upper flat plate 8, base plate 10 are respectively by 4 threaded connection composition support platform components of support column 9, on
Flat board 8, base plate 10 are provided with a series of manholes.Main casing A1, main casing B2 are coordinated by end face, and flange is put in main casing B2
On upper flat plate 8, in the insertion main casing A1 of 4 interference fit section of plug 43, connecting rod 1 is through on main casing A1, main casing B2, upper flat plate
Manhole is threadedly coupled i.e. one end of connecting rod 1 and is threadedly coupled with plug 4 with plug 4, balancing weight 5 respectively, and connecting rod 1 is another
One end is threadedly coupled with balancing weight 5, and limited block 6 is arranged in base plate 10 in manhole, main casing A1, main casing B2, plug 4, matches somebody with somebody
Pouring weight 5, connecting rod 1, the center line of limited block 6 are located on the same line；
The annexation of second set of described frock is as follows：
Upper flat plate 8, base plate 10 are respectively by 4 threaded connection composition support platform components of support column 9, upper flat plate 8, base plate
10 are provided with a series of manholes.Main casing B2 is coordinated by round flange with the end face of main casing B support bases 11, main casing B support bases 11
It is placed on upper flat plate, connecting rod 2 12 is through manhole difference on main casing A1, main casing B2, main casing B support bases 11, upper flat plate 8
I.e. one end of connecting rod 2 12 is threadedly coupled with plug 4, balancing weight 5 to be threadedly coupled with plug 4, the other end of connecting rod 2 12 and counterweight
Block 5 is threadedly coupled, and limited block 6 is arranged in base plate 10 in manhole, main casing A1, main casing B2, plug 4, balancing weight 5, connection
Bar 2 12, main casing B support bases 11, the center line of limited block 6 are located on the same line；
The annexation of the 3rd set of described frock is as follows：
Upper flat plate 8, base plate 10 are respectively by 4 threaded connection composition support platform components of support column 9, upper flat plate 8, base plate
10 are provided with a series of manholes.Steel ball 18 is located between steel ball seat 19 and capillary core print seat 20, and wherein diameter of the steel ball isSteel
Ball, steel ball seat 19 is stepped cylindrical configuration, and two ends body diameter is little, and intermediate cylindrical diameter is big, and its tip designs has " ∨ "
Shape groove places steel ball 18, and capillary core print seat is designed to load steel ball in concave shape structure, Baltimore groove.Steel ball seat 19, steel ball 18, hair
Thin core print seat 20 constitutes movable support mechanism；The big purpose of the intermediate cylindrical diameter of steel ball seat 19 be in order to limited support bar 13
Steel ball seat 19 carried out during connection spacing；
Limited support bar 13 is stepped cylindrical configuration, and two ends body diameter is little, and intermediate cylindrical diameter is big, its top band
There is counterbore, when being connected with limited support bar 13, the cylindrical section of the lower end of steel ball seat 19 falls into counterbore steel ball seat 19, limited support
The cylindrical section of the lower end of bar 13 is arranged in base plate 10 in manhole；
Protection terminal 16 is step column construction, five sections is divided into, successively including the first cylindrical section 161, interference fit
Section 162, guiding conical section 163, the second cylindrical section 164 and guide cylinder section 165；There is chamfering at each section of two ends；First cylinder
A diameter of a of section 161, a diameter of b of interference fit section 162, the outside diameter of guiding conical section 163 are c, are oriented to conical section
163 end diameter is a diameter of e, a of c ', a diameter of d of the second cylindrical section 164 and guide cylinder section 165<B, b=c, c>
C ', c '>D, d<E, a<D, c '>e；First cylindrical section has internal thread hole；
One end of capillary wick 3 coordinates with the end face of capillary core print seat 20, and the other end and the interference in protection terminal 16 of capillary wick 3 are matched somebody with somebody
The end face for closing section coordinates, and the first cylindrical section for protecting terminal 16 is extend into the inner chamber of capillary wick 3；
Interference fit section in protection terminal 16 is engaged with main casing A1 endoporus；Guiding conical section in protection terminal 16
163rd, the second cylindrical section 164 and guide cylinder section 165 are extend into the endoporus of main casing A1；
Main casing helps pull a cart 17 for hollow cylinder structure, and the bottom of hollow cylinder structure carries boss, is enclosed within the outside of main casing A1,
And contact with the external cylindrical surface of main casing A1, main casing help pull a cart 17 with the wired cutting groove in the part that the external cylindrical surface of main casing A1 is contacted,
The effect of wire cutting groove is to make main casing help pull a cart 17 by the case of certain pressure, deforming, so as to main casing A1
External cylindrical surface more closely contact；Help pull a cart 17 bottom boss of main casing is connected with balancing weight.
Main casing helps pull a cart 17 upper ends by the clamp system that is made up of external thread sleeve 14, inner screw sheath 15, collet 21 folder
Firmly main casing A peripheries, main casing is helped pull a cart and 16 main casing A1 is held under the Action of Gravity Field of balancing weight 5.
A kind of loop heat pipe evaporator assemble method, including load plug, main casing welding, exit plug, load capillary wick
Four processes.
The loading plug process is referred to：Main casing A1, main casing B2 and first set frock are assembled at normal temperatures, then will be main
Shell A, B and first set frock are put into heating in vacuum drying oven, insulation, cooling.Due to mandrel material linear expansion coefficient less than main casing A1,
Main casing B2, Jing are integrally heated to uniform temperature, and main casing A1, main casing B2 internal diameters are more than the external diameter of plug 4 so that plug 4 is in counterweight
Action of Gravity Field falls in main casing A1, main casing B2, and the assembly that then forms main casing A1, main casing B2 and plug 4 is overall from the
A set of frock splits out, and carries out main casing welding.
The main casing welding process is referred to carries out vacuum electronic beam ring by main casing A1, main casing B2 at the gap that end face coordinates
Weld one week so as to connect into an entirety.Because the cylindricity of plug 4 is high, rigidity it is good, and with main casing A1, main casing B2 interference fits,
So that the thermal deformation that welding is produced is offset by the structural rigidity of plug, welding deformation is effectively controlled.Treat main casing A1, main casing
After the completion of B2 welding, overall the proceeding to of main casing A1, main casing B2, plug 4 exits plug process.
The plug process that exits is referred to, at normal temperatures by the main casing A1 after welding, main casing B2, the entirety of plug 4 and second
Set frock is equipped with, and is then placed into heating in vacuum drying oven, insulation, cooling.Due to mandrel material linear expansion coefficient less than main casing A1,
Main casing B2, Jing are integrally heated to uniform temperature, and main casing A, B internal diameter is more than coaxial frock external diameter so that gravity of the plug in counterweight
During main casing A1, main casing B2 are exited under effect.Additionally, there is larger welding stress with plug 4 after main casing A1, main casing B2 welding, should
Both welding stress in main casing A1, main casing B2 had been eliminated in heating process, while plug 4 also functions to the effect of hot sizing.Then will be main
Shell A1, main casing B2 are integrally pulled down from second set of frock, proceed to loading capillary wick process.
It is described loading capillary wick process refer to, at normal temperatures by the main casing A1 after welding, main casing B2, capillary wick 3 respectively with
3rd set of frock assembling, it is then overall to be positioned over heating in vacuum drying oven, insulation, cooling, so as to capillary wick is loaded into main casing A1, master
In shell B2.Wherein the bottom of capillary wick 3 is by limited support bar 13 and the work being made up of steel ball seat 19, steel ball 18, capillary core print seat 20
Rotating ring section is supported, and the head of capillary wick 3 coordinates with protection terminal 16 end face, and guide section is put in main casing A inner chambers in protection terminal 16,
Interference fit Duan Yin is stuck at main casing A1 lumen openings with diameter greater than main casing A1 internal diameters in protection terminal 16.Main casing is helped pull a cart on 17
Main casing A peripheries are clamped in end by the clamp system being made up of external thread sleeve 14, inner screw sheath 15, collet 21, and main casing draws
Set 16 holds main casing A1 under the Action of Gravity Field of balancing weight 5.Under gravity, capillary wick 3 is come around the small angle oscillation of steel ball 18
Automatically the gravity direction of balancing weight is adapted to, it is ensured that capillary wick 3 bears all the time gravity in the axial direction, it is to avoid bear moment of flexure
And rupture, i.e., capillary wick 3 can automatically adapt to gravity direction around steel ball under gravity.Due to protecting the line of terminal 16 swollen
Swollen coefficient is more than the linear expansion coefficient of capillary wick 3, less than main casing A1, main casing B2 linear expansion coefficients, and diameter and capillary wick
Equally.In heating process, protection terminal 16 expanded diameter is more than the diameter of capillary wick 3, is all the time the protection interference fit of terminal 16
Section outer surface is contacted with main casing A1 inner surfaces, it is to avoid capillary wick is by metal-back inner surface scratch wound.
A kind of assembly tool and assemble method for loop heat pipe evaporator, the assembly tool include first set frock,
Second set of frock and the 3rd set of frock；The assemble method, including load plug, main casing welding, exit plug, load capillary wick four
Individual process.
During " loading plug ", first as shown in Figure 5 at normal temperatures by main casing A1, main casing B2 and first set frock dress
Match somebody with somebody.Wherein, upper flat plate 8, base plate 10 are respectively by 4 threaded connection composition support platform components of support column 9, upper flat plate 8, base plate
10 are provided with a series of through holes.Main casing A1, main casing B2 are coordinated by end face, and flange is placed on upper flat plate in main casing B2, core
In the interference fit section of rod 4 insertion main casing A1, connecting rod 1 through main casing A1, main casing B2, on upper flat plate manhole respectively with core
Rod 4, balancing weight 5 are threadedly coupled, and limited block 6 is arranged in base plate 10 in manhole, and assembling finishes rear main casing A1, main casing
B2, plug 4, balancing weight 5, connecting rod 1, the center line of limited block 6 are located on the same line.Then, by main casing A1, main casing B2
And first set frock is integrally put into vacuum drying oven, 450 DEG C, insulation 1h are heated to, then cool to 50 DEG C with the furnace and come out of the stove.Fig. 6 is
Plug 4 is fitted into main casing A1, main casing B2 rear version, and metal shell is stretched out at the wherein two ends of plug 4, during convenient follow-up welding
Clamping, prevents direct clamping product and is deformed.
During " main casing welding ", main casing A1, main casing B2 are carried out into vacuum with plug 4 at the gap that end face coordinates
Electron beam boxing one week so as to connect into an entirety.
During " exiting plug ", first as shown in Figure 7 at normal temperatures by main casing A1, main casing B2 and second set of frock dress
Match somebody with somebody.Shell B2 is coordinated by round flange with the end face of main casing B support bases 11, and main casing B support bases 11 are placed on upper flat plate, connecting rod 2 12
Manhole is threadedly coupled respectively with plug 4, balancing weight 5 through on main casing A1, main casing B2, main casing B support bases upper flat plate 8, will
Limited block 6 is arranged in base plate 10 in manhole, and assembling finishes rear main casing A1, main casing B2, plug 4, balancing weight 5, connecting rod
2 12, main casing B support bases 11, the center line of limited block 6 are located on the same line.Then, by main casing A1, main casing B2 and second set
Frock is integrally put into vacuum drying oven, is heated to 450 DEG C, insulation 1h, is then cooled to 50 DEG C with the furnace and is come out of the stove.
During " loading capillary wick ", first as shown in Figure 8, at normal temperatures by the main casing A1 after welding, main casing B2, hair
Thin core 3 is assembled respectively with the 3rd set of frock.The bottom of capillary wick 3 is by limited support bar 13 and by steel ball seat 19, steel ball 18, capillary
The movable device that core print seat 20 is constituted is supported, and wherein diameter of the steel ball is the steel balls of φ 3, " ∨ " shape groove is designed with steel ball seat and places steel
Pearl, capillary core print seat is designed to load steel ball in concave shape structure, Baltimore groove.The head of capillary wick 3 is matched somebody with somebody with the protection end face of terminal 16
Close, guide section is put in main casing A inner chambers in protection terminal 16, interference fit Duan Yin is with diameter greater than in main casing A1 in protection terminal 16
Footpath and be stuck at main casing A1 lumen openings.Main casing helps pull a cart 17 upper ends by by external thread sleeve 14, inner screw sheath 15, collet 21
The clamp system of composition clamps main casing A peripheries, and main casing is helped pull a cart and 16 main casing A1 held under the Action of Gravity Field of balancing weight 5.In weight
Under power effect, capillary wick adapts to the gravity direction of balancing weight around the small angle oscillation of steel ball 18 automatically, it is ensured that capillary wick is all the time
Bear gravity in the axial direction.Then, main casing A1, main casing B2 and the 3rd set of frock are integrally put into vacuum drying oven, are heated
To 450 DEG C, insulation 1h, then cool to 50 DEG C with the furnace and come out of the stove.
Claims (10)
1. a kind of assembly tool for loop heat pipe evaporator, it is characterised in that：The assembly tool include first set frock, the
Two sets of frocks and the 3rd set of frock；
Described first set frock include plug (4), balancing weight (5), limited block (6), connecting rod one (7), upper flat plate (8),
Dagger (9), base plate (10)；
Upper flat plate (8), base plate (10) are by support column (9) threaded connection composition support platform component；
Upper flat plate (8), base plate (10) are provided with manhole；
Main casing A (1), main casing B (2) are coordinated by end face, and flange is placed on upper flat plate (8) in main casing B (2)；
In plug (4) insertion main casing A (1)；
Connecting rod one (7) connects through one end after manhole on main casing A (1), main casing B (2), upper flat plate (8) and plug (4) screw thread
Connect, the other end of connecting rod one (7) is threadedly coupled with balancing weight (5)；
Limited block (6) in the manhole of base plate (10), main casing A (1), main casing B (2), plug (4), balancing weight (5),
Connecting rod one (7), limited block (6) center line are located on the same line；
Second set of described frock includes plug (4), balancing weight (5), limited block (6), main casing B support bases (11), connecting rod two
(12), upper flat plate (8), support column (9), base plate (10)；
Upper flat plate (8), base plate (10) are by support column (9) threaded connection composition support platform component；
Upper flat plate (8), base plate (10) are provided with manhole；
In plug (4) insertion main casing A (1)；
Main casing B (2) is coordinated by round flange and main casing B support bases (11) end face, and main casing B support bases (11) is placed in upper flat plate (8)
On；
Connecting rod two (12) is through after the manhole on main casing A (1), main casing B (2), main casing B support bases (11), upper flat plate (8)
One end is threadedly coupled with plug (4), and the other end of connecting rod two (12) is threadedly coupled with balancing weight (5)；
Limited block (6) in the manhole of base plate (10), main casing A (1), main casing B (2), plug (4), balancing weight (5),
Connecting rod two (12), main casing B support bases (11), limited block (6) center line are located on the same line；
The 3rd set of described frock includes balancing weight (5), upper flat plate (8), support column (9), base plate (10), limited support bar
(13), external thread sleeve (14), inner screw sheath (15), protection terminal (16), main casing help pull a cart (17), steel ball (18), steel ball seat (19),
Capillary core print seat (20), collet (21)；
Upper flat plate (8), base plate (10) are by support column (9) threaded connection composition support platform component；
Upper flat plate (8), base plate (10) are provided with manhole；
Steel ball (18) is between steel ball seat (19) and capillary core print seat (20)；
The cylindrical section of steel ball seat (19) lower end is fallen into the counterbore on limited support bar (13) top；
The cylindrical section of limited support bar (13) lower end is arranged in the manhole of base plate (10)；
One end of capillary wick (3) and the cooperation of capillary core print seat (20) end face, the other end of capillary wick (3) and the mistake of protection terminal (16)
It is full of and coordinates the end face of section to coordinate, the first cylindrical section for protecting terminal (16) is extend into the inner chamber of capillary wick (3)；
Interference fit section in protection terminal (16) is engaged with main casing A (1) endoporus；Guiding circular cone in protection terminal (16)
Section, the second cylindrical section and guide cylinder Duan Jun are extend into the endoporus of main casing A (1)；
Main casing helps pull a cart (17) for hollow cylinder structure, main casing help pull a cart (17) bottom with boss, main casing is helped pull a cart the upper end of (17)
The outside of main casing A (1) is enclosed within by clamp system, the help pull a cart bottom boss of (17) of main casing is connected with balancing weight (5), and main casing is helped pull a cart
(17) main casing A (1) is held under the Action of Gravity Field of balancing weight (5).
2. a kind of assembly tool for loop heat pipe evaporator according to claim 1, it is characterised in that：Described steel
Pearl (18) isSteel ball, steel ball seat (19) is stepped cylindrical configuration, and two ends body diameter is little, and intermediate cylindrical diameter is big, its
Tip designs have " ∨ " shape groove to place steel ball (18).
3. a kind of assembly tool for loop heat pipe evaporator according to claim 1, it is characterised in that：Described hair
Thin core print seat is to load steel in concave structure, Baltimore groove to have (18), the big purpose of the intermediate cylindrical diameter of steel ball seat (19) be in order to
Steel ball seat (19) carried out when being connected with limited support bar (13) spacing.
4. a kind of assembly tool for loop heat pipe evaporator according to claim 1, it is characterised in that：Described core
Rod (4) material for molybdenum alloy cylindrical structural, including linkage section, the first cylindrical section, interference fit section, the second cylindrical section, its
Middle interference fit section diameter is identical with capillary wick (3) diameter, and cylindricity is 0.004, and interference fit segment length is main casing B (2)
Length 1.5-2.5 times, remainder diameter 0.3～0.5mm little compared with interference fit section diameter, plug (4) overall length is compared with main casing A, master
Shell B length sum 30～50mm of length；In interference fit section insertion main casing A (1) of plug (4).
5. a kind of assembly tool for loop heat pipe evaporator according to claim 1, it is characterised in that：Described guarantor
Protect cylindrical structural of the terminal (16) for molybdenum alloy, including the first cylindrical section, interference fit section, circular cone guide section, the second cylinder
Section, cylinder guide section, wherein interference fit section is identical with capillary core diameter, and length is 3～6mm；Circular cone guide section taper angle is
10 °～20 °, cylinder guide section diameter 0.3～0.5mm little compared with interference fit section diameter protects terminal overall length about 20～30mm, the
One cylindrical section has internal thread hole.
6. a kind of assembly tool for loop heat pipe evaporator according to claim 1, it is characterised in that：Described limit
Position support bar (13) is stepped cylindrical configuration, and two ends body diameter is little, and intermediate cylindrical diameter is big, and its top carries counterbore,
When being connected with limited support bar (13), the cylindrical section of steel ball seat (19) lower end falls into counterbore steel ball seat (19).
7. a kind of assembly tool for loop heat pipe evaporator according to claim 1, it is characterised in that：Described steel
Pearl seat (19), steel ball (18), capillary core print seat (20) constitute movable support mechanism.
8. a kind of usage right requires that the arbitrary described frocks of 1-7 carry out loop heat pipe evaporator assemble method, it is characterised in that
The step of the method, includes：
(1) plug is loaded：
Main casing A (1), main casing B (2) and first set frock are assembled at normal temperatures, then by main casing A (1), main casing B (2) and first
Set frock is put into heating in vacuum drying oven, insulation, cooling, and now plug (4) is dropped into main casing A (1), main casing B (2), then will
The assembly that main casing A (1), main casing B (2) and plug (4) are formed integrally splits out from first set frock；
(2) main casing welding：
Main casing A (1), main casing B (2) carry out vacuum electron beam at the gap that end face coordinates in the assembly that step (1) is obtained
Boxing one week, makes main casing A (1), main casing B (2) connect into an entirety, after the completion for the treatment of main casing A (1), main casing B (2) welding, main casing
A (1), main casing B (2), plug (4) are integrally proceeded to and exit plug process；
(3) plug is exited：
Main casing A (1), main casing B (2) that step (2) is obtained and plug (4) are overall equipped with second set of frock, are then placed into
Heating, insulation, cooling in vacuum drying oven, now plug (4) is exited from main casing A (1) and main casing B (2), then by main casing A (1),
Main casing B (2) is integrally pulled down from second set of frock, proceeds to loading capillary wick process；
(4) capillary wick is loaded：
At normal temperatures, the main casing A (1) for step (3) being obtained and main casing B (2) and capillary wick (3) and the 3rd set of frock assembling,
Then it is overall to be positioned over heating in vacuum drying oven, insulation, cooling, so as to capillary wick (3) be fitted into main casing A (1) and main casing B (2)；
Wherein capillary wick (3) bottom is made up of by limited support bar (13) and steel ball seat (19), steel ball (18), capillary core print seat (20)
Movable support mechanism is supported, and capillary wick (3) head coordinates with protection terminal (16) end face, guide section in protection terminal (16)
In putting in main casing A (1) inner chamber, interference fit section in terminal (16) is protected to be stuck at main casing A (1) lumen openings, main casing is helped pull a cart
(17) main casing A (1) periphery is clamped in upper end, main casing help pull a cart (17) main casing A (1) is held under the Action of Gravity Field of balancing weight (5)；
Under Action of Gravity Field, capillary wick (3) swings to adapt to the gravity direction of balancing weight (5) automatically around steel ball (18), it is ensured that capillary wick
(3) gravity in the axial direction is born all the time.
9. assemble method according to claim 8, it is characterised in that：Described step (1), step (3) and step (4)
In, the vacuum of vacuum drying oven is due to 10-3Pa, heating-up temperature is 440-460 DEG C, and heating rate is 10 DEG C/min, and temperature retention time is
1h, then cools to 50 DEG C with the furnace.
10. assemble method according to claim 8, it is characterised in that：In described step (2), vacuum electron beam boxing
Parameter be：Vacuum is due to 7*10-2Pa, accelerating potential is 50,000 volts, and focus current is 650mA, and speed of welding is 1m/min,
Welding line is 10-15mA.
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| CN201611064923.9A CN106624598B (en) | 2016-11-28 | 2016-11-28 | A kind of assembly tool and assemble method for loop heat pipe evaporator |
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| CN201611064923.9A CN106624598B (en) | 2016-11-28 | 2016-11-28 | A kind of assembly tool and assemble method for loop heat pipe evaporator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107186329A (en) * | 2017-06-21 | 2017-09-22 | 北京控制工程研究所 | A kind of electron beam welding method of molybdenum alloy and tungsten alloy |
| CN107935622A (en) * | 2017-12-07 | 2018-04-20 | 中国科学院上海硅酸盐研究所 | The gradient porous capillary wick of a kind of loop circuit heat pipe silicon nitride and its with reference to coating production |
| CN110814505A (en) * | 2019-11-06 | 2020-02-21 | 成都精铖电子设备制造有限公司 | Manufacturing method of shell with high pressure resistance |
| CN112475585A (en) * | 2020-11-26 | 2021-03-12 | 有研亿金新材料有限公司 | Welding method for sputtering copper ring and fixing assembly |
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| JPH11337227A (en) * | 1998-05-21 | 1999-12-10 | Toyo Radiator Co Ltd | Integration type heat exchanger combining evaporator, absorber and supercooler and manufacture thereof |
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| CN102519289A (en) * | 2011-12-31 | 2012-06-27 | 山东大学 | Integrated preparation technology of loop heat pipe evaporator |
| CN106134423B (en) * | 2010-02-09 | 2014-01-22 | 北京卫星制造厂 | The assembly method of stainless steel shell and capillary wick in a kind of loop circuit heat pipe evaporimeter |
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| JPH11337227A (en) * | 1998-05-21 | 1999-12-10 | Toyo Radiator Co Ltd | Integration type heat exchanger combining evaporator, absorber and supercooler and manufacture thereof |
| CN106134423B (en) * | 2010-02-09 | 2014-01-22 | 北京卫星制造厂 | The assembly method of stainless steel shell and capillary wick in a kind of loop circuit heat pipe evaporimeter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107186329A (en) * | 2017-06-21 | 2017-09-22 | 北京控制工程研究所 | A kind of electron beam welding method of molybdenum alloy and tungsten alloy |
| CN107935622A (en) * | 2017-12-07 | 2018-04-20 | 中国科学院上海硅酸盐研究所 | The gradient porous capillary wick of a kind of loop circuit heat pipe silicon nitride and its with reference to coating production |
| CN107935622B (en) * | 2017-12-07 | 2021-02-12 | 中国科学院上海硅酸盐研究所 | Silicon nitride gradient porous capillary core for loop heat pipe and preparation method of bonding coating of silicon nitride gradient porous capillary core |
| CN110814505A (en) * | 2019-11-06 | 2020-02-21 | 成都精铖电子设备制造有限公司 | Manufacturing method of shell with high pressure resistance |
| CN112475585A (en) * | 2020-11-26 | 2021-03-12 | 有研亿金新材料有限公司 | Welding method for sputtering copper ring and fixing assembly |
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| CN106624598B (en) | 2018-08-21 |
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