CN106624598B - A kind of assembly tool and assemble method for loop heat pipe evaporator - Google Patents
A kind of assembly tool and assemble method for loop heat pipe evaporator Download PDFInfo
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- CN106624598B CN106624598B CN201611064923.9A CN201611064923A CN106624598B CN 106624598 B CN106624598 B CN 106624598B CN 201611064923 A CN201611064923 A CN 201611064923A CN 106624598 B CN106624598 B CN 106624598B
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- capillary wick
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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
-
- 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
Abstract
The present invention relates to a kind of assembly tool of loop heat pipe evaporator and assemble method, it is mainly used for the assembling of evaporator in loop circuit heat pipe, belongs to loop circuit heat pipe two-phase technical field of heat transfer.One aspect of the present invention can be realized to be interference fitted between capillary wick and metal shell, and ensures that capillary wick is fitted into metal shell and will not be broken, hot charging success rate is high, small lot production can be met, production cost is reduced, production efficiency is improved, capillary wicking surface on the other hand can be ensured without scuffing and without shed powder, product surface non-oxidation, pollution-free, raising life of product and reliability.
Description
Technical field
The present invention relates to a kind of assembly tools and assemble method for loop heat pipe evaporator, are mainly used for loop circuit heat pipe
The assembling of middle evaporator 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 the thermal control technology of current spacecraft thermal control field forefront, it has
High heat-transfer performance transmits strong heat, anti-gravity ability, convenient and flexible installation and operational reliability height, working life at a distance
Many advantages, such as long.Evaporator is the core component of loop circuit heat pipe, and the normal operation of loop circuit heat pipe requires evaporator to be provided simultaneously with
Absorb thermic load has loop circuit heat pipe runnability and reliability important with working medium circulation power dual function, evaporator is provided
It influences.
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 evaporator, when Ground Application, can flow by gravitational force into evaporator by adjusting capillary wick posture, liquid
It is interior with ensure capillary wick infiltrate；And under in-orbit microgravity environment, most liquid are randomly distributed in droplet form in liquid storage device,
Capillary wick has locally dry possibility in evaporator section, this will make loop circuit heat pipe there is the risk for starting failure or outage.
To overcome the technical risk, existing evaporation structure form is shown in Fig. 1, shown in 2, and metal shell is by main casing A and master
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
Belong to 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-precision cylinder
Then face forms a series of grooves at inner headed face by wire cutting, finally weld to form metal shell with main casing B.Main casing B is
Cylinder thin-wall construction and one end are designed with circular flange, and material is stainless steel, and rectangular aperture at 8 is designed on cylinder thin-walled.Hair
Thin core, through being sintered, high precision excircle surface is formed subsequently through mechanical processing by alpha-silicon nitride powders.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 channel is provided for cycle fluid, this is the critical process of evaporator assembling.
Hot-mounting process is a kind of special assembly technique, by making its internal diameter expand to external member heating, to shape
At fit-up gap so that achieve the purpose that elastic conjunction between external member and internal member.This method be widely used in aviation,
Auto industry field.
Assembly of the conventional evaporator hot-mounting process for above-mentioned evaporator exists as following drawbacks：First, main casing A and main casing B
Deformation control difficulty is big after welding, causes main casing A and main casing B concentricities (i.e. metal shell cylindricity) poor, and hot charging process
The assembly stroke of middle capillary wick and metal shell is long, easy to be stuck with capillary wick, and main casing A and main casing B high is same after must ensureing welding
The requirement of axis degree；Secondly, it is guarantee loop circuit heat pipe long life requirement, it is desirable that evaporator surface non-oxidation during hot charging, it need to be true
It is assembled in empty stove, manually can not directly be operated, need to realize automatic assembling；Moreover since capillary wick is elongated rods structure, and
It is formed to be powder sintered, bending strength is low, easily fractures if bearing moment of flexure during capillary wick insertion metal-back；Finally, main
There are groove, capillary wick is easy to scratch capillary wicking surface shell A inner surfaces with main casing A frictions when hot charging, leads to capillary wicking surface powder
End falls off, and forms fifth wheel, influences life of product.
Invention content
The technology of the present invention solves the problems, such as：Overcome the deficiencies in the prior art proposes a kind of for loop heat pipe evaporator
Assembly tool and assemble method.
Technical solution of the invention is：
A kind of assembly tool for loop heat pipe evaporator, the assembly tool include first set tooling, second set of tooling
Tooling is covered with third；
The first set tooling includes plug, clump weight, limited block, connecting rod one, upper flat plate, support column, bottom plate；
Upper flat plate, bottom plate are threadedly coupled composition support platform component by support column；
Upper flat plate, bottom plate are equipped with circular through hole；
Main casing A, main casing B are coordinated by end face, and flange is placed on upper flat plate in main casing B；
Plug is inserted into main casing A；
Connecting rod one is connect one end after circular through hole 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 clump weight；
Limited block is mounted in the circular through hole of bottom plate, main casing A, main casing B, plug, clump weight, connecting rod one, limited block
Center line is located on the same line；
Second set of tooling includes plug, clump weight, limited block, main casing B support bases, connecting rod two, upper flat plate, branch
Dagger, bottom plate；
Upper flat plate, bottom plate are threadedly coupled composition support platform component by support column；
Upper flat plate, bottom plate are equipped with circular through hole；
Plug is inserted into main casing A；
Main casing B is coordinated by round flange and main casing B support bases end face, and main casing B support bases are placed on upper flat plate；
Connecting rod two one end and plug spiral shell after the circular through hole on main casing A, main casing B, main casing B support bases, upper flat plate
Line connects, and two other end of connecting rod is threadedly coupled with clump weight；
Limited block is mounted in the circular through hole of bottom plate, main casing A, main casing B, plug, clump weight, connecting rod two, main casing B branch
Support seat, limited block center line are located on the same line；
The described third set tooling includes clump weight, upper flat plate, support column, bottom plate, limited support bar, external thread sleeve, interior
Thread bush protects terminal, main casing to help pull a cart, steel ball, steel ball seat, capillary core print seat, elastic collet；
Upper flat plate, bottom plate are threadedly coupled composition support platform component by support column；
Upper flat plate, bottom plate are equipped with circular through hole；
Steel ball is 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 mounted in the circular through hole of bottom 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 of terminal is protected to extend into the inner cavity of capillary wick；
Interference fit section in protection terminal is engaged with main casing A endoporus；Protect 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 end that main casing is helped pull a cart carries boss, and the upper end that main casing is helped pull a cart passes through clamping
Mechanism is sleeved on the outside of main casing A, and the bottom boss that main casing is helped pull a cart is connect with clump weight, and main casing is helped pull a cart in the gravity of clump weight
Lower pulling main casing A.
The steel ball isSteel ball, steel ball seat are stepped cylindrical configuration, and both ends body diameter is small, intermediate cylindrical
Diameter is big, and tip designs have " ∨ " shape slot to place steel ball.
The capillary core print seat is concave structure, and steel is packed into baltimore groove to be had, the big institute of the intermediate cylindrical diameter of steel ball seat
The mandrel material stated is the cylindrical structure of molybdenum alloy, including linkage section, the first cylindrical section, interference fit section, the second cylindrical section,
Wherein interference fit section diameter is identical as capillary core diameter, cylindricity 0.004, and it is main shell B length to be interference fitted segment length
1.5-2.5 times, rest part diameter 0.3~0.5mm small compared with interference fit section diameter, plug overall length is compared with main casing A, main casing B length
The sum of long 30~50mm；The interference fit section of plug is inserted into main casing A.
The protection terminal is the cylindrical structure of molybdenum alloy, including the first cylindrical section, interference fit section, circular cone guiding
Section, the second cylindrical section, cylinder guide section, wherein interference fit section is identical as 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 small compared with interference fit section diameter, and protection terminal overall length is about
20~30mm, the first cylindrical section have internal thread hole.
The limited support bar is stepped cylindrical configuration, and both ends body diameter is small, and intermediate cylindrical diameter is big, top
End carries counterbore, and when being connect with limited support bar, the cylindrical section of steel ball seat lower end is fallen into counterbore steel ball seat.
The steel ball seat, steel ball, capillary core print seat constitute movable support mechanism.
A kind of to carry out loop heat pipe evaporator assemble method using tooling, the step of this method, includes：
(1) it is packed into plug：
Main casing A, main casing B and first set tooling are assembled at normal temperatures, then put main casing A, main casing B and first set tooling
Enter in vacuum drying oven to heat, keep the temperature, is cooling, plug drops into main casing A, main casing B at this time, then by main casing A, main casing B and plug
The assembly of formation is integrally split out from first set tooling；
(2) main casing welds：
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
Weldering one week, makes main casing A, main casing B connect into an entirety, and after the completion of waiting for main casing A, main casing B welding, main casing A, main casing B, plug are whole
Body, which is transferred to, exits plug process；
Exit plug：
Main casing A, the main casing B and plug that step (2) is obtained are whole equipped with second set of tooling, are then placed into vacuum drying oven
Interior heating, heat preservation, cooling, plug is exited from main casing A and main casing B at this time, then that main casing A, main casing B is whole from second set of work
Under assembly and disassembly, it is transferred to and is packed into capillary wick process；
(4) it is packed into capillary wick：
At normal temperatures, the main casing A and main casing B and capillary wick step (3) obtained and third set tooling assembly, it is then whole
Body, which is positioned in vacuum drying oven, to be heated, keeps the temperature, is cooling, to which capillary wick to be fitted into main casing A and main casing B；Wherein capillary wick bottom
Be supported by limited support bar and the movable support mechanism being made of steel ball seat, steel ball, capillary core print seat, capillary core head with
The cooperation of terminal end face is protected, guide section in terminal is protected to put in the inner cavities main casing A, interference fit section in terminal is protected to be stuck in main casing
At A lumen openings, main casing A peripheries are clamped in main casing upper end of helping pull a cart, and main casing helps pull a cart and holds main casing under the gravity of clump weight
A；Under the effect of gravity, capillary wick carrys out the automatic gravity direction for adapting to clump weight around steel ball swing, ensure that capillary wick is held always
By gravity in the axial direction.
In the step (1), step (3) and step (4), the vacuum degree of vacuum drying oven is due to 10-3Pa, heating temperature are
440-460 DEG C, heating rate is 10 DEG C/min, then soaking time 1h cools to 50 DEG C with the furnace.
In the step (2), the parameter of vacuum electron beam boxing is：Vacuum degree is due to 7*10-2Pa, accelerating potential 5
Wan Fu, focus current 650mA, speed of welding 1m/min, welding line are 10-15mA.
The advantageous effect that is reached of the present invention is：
(1) plug can ensure that main casing A, main casing B vacuum electron beam weldings are forward and backward with good concentricity, while
During " exiting plug ", plug plays the role of hot sizing, while having eliminated welding stress again, ensure that main after plug exits
Shell A, the good concentricities of main casing B, this, which is the key that follow-up capillary wick, to be successfully packed into；
(2) it is designed with movable device support in third set tooling, ensures that capillary wick bears gravity always, avoids bearing curved
Square, and will not be broken from capillary wick, hot charging success rate is high, can meet small lot production, reduces production cost, improves production effect
Rate；
(3) it ensure that capillary wicking surface is without scuffing and de- without powder due to protecting terminal protecting during capillary wick hot charging
It falls, ensure that life of product and reliability, carried out in vacuum drying oven during entire hot charging, it is product surface non-oxidation, pollution-free.
(4) tooling of the invention and assemble method, are mainly used for the assembling of evaporator 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, being kept the temperature in vacuum drying oven, cooled down so that core
Stick is packed into main casing A, main casing B, realizes elastic conjunction.Secondly vacuum electron beam boxing is carried out to main casing A, main casing B, it is made to connect into
It is whole；Then, first by plug with main casing A, main casing B by being heated, being kept the temperature in vacuum drying oven, cooled down so that plug exits.
Finally, capillary wick heated in a vacuum furnace with main casing A, main casing B, kept the temperature, cooled down so that capillary wick is successfully packed into main casing
A, in main casing B, and elastic conjunction is realized, fracture will not occur for capillary wick and surface nondestructive is hindered.One aspect of the present invention can be realized
It being interference fitted between capillary wick and metal shell, and ensure that capillary wick is fitted into metal shell to be broken, hot charging success rate is high,
Small lot production can be met, reduce production cost, production efficiency is improved, capillary wicking surface on the other hand can be ensured without scuffing
And without shed powder, product surface non-oxidation, pollution-free, raising life of product and reliability.
Description of the drawings
Fig. 1 is the dimensional structure diagram of existing evaporator in the prior art；
Fig. 2 is the structural schematic diagram of existing evaporator in the prior art；
Fig. 3 is the structural schematic diagram of the plug of the present invention；
Fig. 4 is the structural schematic diagram of the protection terminal of the present invention；
Fig. 5 is into stokehold, main casing A, main casing B and first set tooling assembling structure diagram；
Fig. 6 is that plug is packed into structural schematic diagram after main casing A, main casing B；
Fig. 7 is into stokehold, main casing A, main casing B and second set of tooling assembling structure schematic diagram；
Fig. 8 is into stokehold, and main casing A, main casing B, capillary wick and third cover tooling assembling structure schematic diagram；
Fig. 9 is enlarged drawing I in Fig. 7；
Figure 10 is the big figure of Fig. 7 middle-grades II.
In figure：1. main casing A；2. main casing B；3. capillary wick；4. plug；5. clump weight；6, limited block；7. connecting rod one；8.
Support plate；9. support column；10. bottom plate；11. main casing B support bases；12. connecting rod two；13. limited support bar；14. screw thread pressure head；
15. external thread sleeve；16. protecting terminal；17. main casing is helped pull a cart；18. steel ball；19. steel ball seat；20. capillary core print seat；21. clamping sleeve.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples.
Embodiment
A kind of assembly tool for loop heat pipe evaporator, the assembly tool include first set tooling, second set of tooling
Tooling is covered with third；
As shown in figure 5, the first set tooling includes plug 4, clump weight 5, limited block 6, connecting rod 1, upper flat plate
8, support column 9, bottom plate 10；
As shown in fig. 7, second set of tooling includes plug 4, clump weight 5, limited block 6, main casing B support bases 11, connects
Extension bar 2 12, upper flat plate 8, support column 9, bottom plate 10；
As shown in Fig. 8, Fig. 9 and Figure 10, it includes clump weight 5, upper flat plate 8, support column 9, bottom plate that the third, which covers tooling,
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, elastic collet 21.
As shown in figure 3,4 material of the plug is the cylindrical structure of molybdenum alloy, including linkage section 41, the first cylindrical section
42, interference fit section 43, the second cylindrical section 44, wherein 43 diameter of interference fit section is identical as 3 diameter of capillary wick, and cylindricity is
0.004, and it is main 1.5-2.5 times of shell B length to be interference fitted segment length, rest part diameter is small compared with interference fit section diameter by 0.3
~0.5mm, 4 overall length of plug grow 30~50mm compared with the sum of main casing A, main casing B length；
As shown in figure 4, the protection terminal 16 is the cylindrical structure of molybdenum alloy, including the first cylindrical section 161, interference
Coordinate section 162, circular cone guide section 163, the second cylindrical section 164, cylinder guide section 165, wherein interference fit section 162 and capillary wick
Diameter is identical, and length is 3~6mm；163 taper angle of circular cone guide section is 10 °~20 °, and 165 diameter of cylinder guide section is matched compared with interference
Close the small 0.3~0.5mm of section diameter, protection terminal overall length about 20~30mm；
Remaining parts are all made of 1Cr18Ni9Ti stainless steels in the first set tooling, second set of tooling, third set tooling
The structure size of manufacture, specific size and evaporator is adapted.
All parts are both needed to clean and remove through high temperature in the first set tooling, second set of tooling, third set tooling
Oil processing.
The connection relation of the first set tooling is as follows：
As shown in fig. 6, upper flat plate 8, bottom plate 10 are threadedly coupled composition support platform component by 4 support columns 9 respectively, on
Tablet 8, bottom plate 10 are equipped with a series of circular through holes.Main casing A1, main casing B2 are coordinated by end face, and flange is set in main casing B2
In on upper flat plate 8,4 interference fit section 43 of plug is inserted into main casing A1, and connecting rod 1 is on main casing A1, main casing B2, upper flat plate
Circular through hole is threadedly coupled i.e. one 7 one end of connecting rod with plug 4, clump weight 5 and is threadedly coupled with plug 4 respectively, and connecting rod 1 is another
One end is threadedly coupled with clump weight 5, and limited block 6 is mounted in bottom plate 10 in circular through hole, main casing A1, main casing B2, plug 4, is matched
Pouring weight 5, connecting rod 1,6 center line of limited block are located on the same line；
The connection relation of second set of tooling is as follows：
Upper flat plate 8, bottom plate 10 are threadedly coupled composition support platform component, upper flat plate 8, bottom plate by 4 support columns 9 respectively
10 are equipped with a series of circular through holes.Main casing B2 is coordinated by round flange and 11 end face of main casing B support bases, main casing B support bases 11
It is placed on upper flat plate, the circular through hole difference on main casing A1, main casing B2, main casing B support bases 11, upper flat plate 8 of connecting rod 2 12
It is threadedly coupled i.e. 2 12 one end of connecting rod with plug 4, clump weight 5 to be threadedly coupled with plug 4,2 12 other end of connecting rod and counterweight
Block 5 is threadedly coupled, and limited block 6 is mounted in bottom plate 10 in circular through hole, main casing A1, main casing B2, plug 4, clump weight 5, connection
Bar 2 12, main casing B support bases 11,6 center line of limited block are located on the same line；
The connection relation of the third set tooling is as follows：
Upper flat plate 8, bottom plate 10 are threadedly coupled composition support platform component, upper flat plate 8, bottom plate by 4 support columns 9 respectively
10 are equipped with a series of circular through holes.Steel ball 18 is between steel ball seat 19 and capillary core print seat 20, and wherein diameter of the steel ball isSteel
Ball, steel ball seat 19 are stepped cylindrical configuration, and both ends body diameter is small, and intermediate cylindrical diameter is big, and tip designs have " ∨ "
Shape slot places steel ball 18, and capillary core print seat is designed to concave shape structure, steel ball is packed into 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 is limited when connection；
Limited support bar 13 is stepped cylindrical configuration, and both ends body diameter is small, and intermediate cylindrical diameter is big, top band
There is counterbore, when being connect with limited support bar 13, the cylindrical section of 19 lower end of steel ball seat is fallen into counterbore steel ball seat 19, limited support
The cylindrical section of the lower end of bar 13 is mounted in bottom plate 10 in circular through hole；
Protection terminal 16 is step column construction, is divided into five sections, includes the first cylindrical section 161, interference fit successively
Section 162 is oriented to conical section 163, the second cylindrical section 164 and guide cylinder section 165；There is chamfering at each section of both ends；First cylinder
A diameter of a of section 161, a diameter of b of interference fit section 162, the outside diameter of conical section 163 is oriented to as c, guiding 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 20 end face of capillary core print seat, and the other end of capillary wick 3 is matched with interference in protection terminal 16
The end face cooperation of section is closed, the first cylindrical section of protection terminal 16 is extend into the inner cavity of capillary wick 3；
Interference fit section in protection terminal 16 is engaged with main casing A1 endoporus；Protect the guiding conical section in terminal 16
163, 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 as hollow cylinder structure, and the bottom end of hollow cylinder structure carries boss, is sleeved on the outside of main casing A1,
And contacted with the external cylindrical surface of main casing A1, main casing helps pull a cart 17 in the wired cutting groove in part contacted with the external cylindrical surface of main casing A1,
The effect of wire cutting slot is that main casing is made to help pull a cart 17 by certain pressure, can be deformed, thus with main casing A1
The closer contact of external cylindrical surface；Help pull a cart 17 bottom boss of main casing is connect with clump weight.
Main casing 17 upper ends of helping pull a cart are pressed from both sides by the clamp system that is made of external thread sleeve 14, inner screw sheath 15, elastic collet 21
Firmly main casing A peripheries, main casing is helped pull a cart 16 holds main casing A1 under the gravity of clump weight 5.
A kind of loop heat pipe evaporator assemble method, including be packed into plug, main casing welding, exit plug, be packed into capillary wick
Four processes.
The loading plug process refers to：Main casing A1, main casing B2 and first set tooling are assembled at normal temperatures, then will be led
Shell A, B and first set tooling, which are put into vacuum drying oven, to be heated, keeps the temperature, is cooling.Due to mandrel material linear expansion coefficient be less than main casing A1,
Main casing B2 is heated to certain temperature through whole, and main casing A1, main casing B2 internal diameters are more than 4 outer diameter of plug so that plug 4 is in counterweight
Gravity falls in main casing A1, main casing B2, and the assembly for then forming main casing A1, main casing B2 and plug 4 is whole from the
A set of tooling is split out, and carries out main casing welding.
The main casing welding process refers to that main casing A1, main casing B2 are carried out vacuum electronic beam ring at the gap that end face coordinates
Weldering one week, makes it connect into an entirety.It is interference fitted since 4 cylindricity of plug is high, rigidity is good, and with main casing A1, main casing B2,
So that the thermal deformation that welding generates is offset by the structural rigidity of plug, welding deformation is effectively controlled.Wait for main casing A1, main casing
After the completion of B2 welding, whole be transferred to of main casing A1, main casing B2, plug 4 exits plug process.
The plug process that exits refers to, at normal temperatures by the main casing A1 after welding, main casing B2,4 entirety of plug and second
It is equipped to cover tooling, is then placed into heating in vacuum drying oven, keeps the temperature, is cooling.Due to mandrel material linear expansion coefficient be less than main casing A1,
Main casing B2 is heated to certain temperature through whole, and main casing A, B internal diameter is more than coaxial tooling outer diameter so that gravity of the plug in counterweight
It is exited under effect in main casing A1, main casing B2.In addition, there are larger welding stresses with plug 4 after main casing A1, main casing B2 welding, it 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 it will lead
Shell A1, main casing B2 are integrally removed from second set of tooling, are transferred to and are packed into capillary wick process.
The loading capillary wick process refers to, at normal temperatures by after welding main casing A1, main casing B2, capillary wick 3 respectively with
Third covers tooling assembly, and then whole be positioned in vacuum drying oven heats, keeps the temperature, is cooling, to which capillary wick is packed into main casing A1, master
In shell B2.Wherein 3 bottom of capillary wick passes through limited support bar 13 and the work being made of steel ball seat 19, steel ball 18, capillary core print seat 20
Rotating ring section supports, and 3 head of capillary wick coordinates with 16 end face of protection terminal, and guide section in terminal 16 is protected to put in the inner cavities main casing A,
Interference fit section is stuck in because diameter is more than main casing A1 internal diameters at main casing A1 lumen openings 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 of external thread sleeve 14, inner screw sheath 15, elastic collet 21, and main casing is drawn
Set 16 holds main casing A1 under the gravity of clump weight 5.Under the effect of gravity, capillary wick 3 is come around 18 small angle oscillation of steel ball
The automatic gravity direction for adapting to clump weight, ensure that capillary wick 3 bears gravity in the axial direction always, avoids bearing moment of flexure
And be broken, i.e., capillary wick 3 can adapt to gravity direction automatically around steel ball under the effect of gravity.Since protection 16 line of terminal is swollen
Swollen coefficient is more than the linear expansion coefficient of capillary wick 3, is less than main casing A1, main casing B2 linear expansion coefficients, and diameter and capillary wick
Equally.In heating process, protection 16 expanded diameter of terminal is more than 3 diameter of capillary wick, is that protection terminal 16 is interference fitted always
Section outer surface is contacted with main casing A1 inner surfaces, avoids capillary wick 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 tooling,
Second set of tooling and third cover tooling；The assemble method, including be packed into plug, main casing welding, exit plug, be packed into capillary wick four
A process.
During " being packed into plug ", main casing A1, main casing B2 and first set tooling are filled at normal temperatures as shown in Figure 5 first
Match.Wherein, upper flat plate 8, bottom plate 10 are threadedly coupled composition support platform component, upper flat plate 8, bottom plate by 4 support columns 9 respectively
10 are equipped 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
4 interference fit section of stick is inserted into main casing A1, connecting rod 1 pass through main casing A1, main casing B2, on upper flat plate circular through hole respectively with core
Stick 4, clump weight 5 are threadedly coupled, and limited block 6 are mounted in bottom plate 10 in circular through hole, main casing A1, main casing after assembly
B2, plug 4, clump weight 5, connecting rod 1,6 center line of limited block are located on the same line.Then, by main casing A1, main casing B2
And first set tooling is integrally put into vacuum drying oven, is heated to 450 DEG C, heat preservation 1h, is then cooled to 50 DEG C with the furnace and come out of the stove.Fig. 6 is
Structure type after plug 4 is fitted into main casing A1, main casing B2, wherein 4 both ends of plug stretch out metal shell, conveniently when follow-up welding
Clamping prevents direct clamping product and is deformed.
During " main casing welding ", main casing A1, main casing B2 are subjected to vacuum with plug 4 at the gap that end face coordinates
Electron beam boxing one week makes it connect into an entirety.
During " exiting plug ", main casing A1, main casing B2 and second set of tooling are filled at normal temperatures as shown in Figure 7 first
Match.Shell B2 is coordinated by round flange and 11 end face of main casing B support bases, and main casing B support bases 11 are placed on upper flat plate, connecting rod 2 12
Circular through hole is threadedly coupled with plug 4, clump weight 5 respectively on main casing A1, main casing B2, main casing B support bases upper flat plate 8, will
Limited block 6 is mounted in bottom plate 10 in circular through hole, main casing A1, main casing B2, plug 4, clump weight 5, connecting rod after assembly
2 12, main casing B support bases 11,6 center line of limited block are located on the same line.Then, by main casing A1, main casing B2 and second set
Tooling is integrally put into vacuum drying oven, is heated to 450 DEG C, heat preservation 1h, is then cooled to 50 DEG C with the furnace and come out of the stove.
During " being packed into capillary wick ", first as shown in Figure 8, at normal temperatures by main casing A1, main casing B2, the hair after welding
Thin core 3 is assembled with third set tooling respectively.3 bottom of capillary wick is by limited support bar 13 and by steel ball seat 19, steel ball 18, capillary
The movable device support that core print seat 20 is constituted, wherein diameter of the steel ball are 3 steel balls of φ, and " ∨ " shape slot is designed on steel ball seat and places steel
Pearl, capillary core print seat are designed to concave shape structure, steel ball are packed into baltimore groove.Match with 16 end face of protection terminal on 3 head of capillary wick
It closes, guide section in terminal 16 is protected to put in the inner cavities main casing A, interference fit section is because diameter is more than in main casing A1 in protection terminal 16
Diameter and be stuck at main casing A1 lumen openings.Main casing 17 upper ends of helping pull a cart pass through by external thread sleeve 14, inner screw sheath 15, elastic collet 21
The clamp system of composition clamps main casing A peripheries, and main casing is helped pull a cart 16 holds main casing A1 under the gravity of clump weight 5.In weight
Under force effect, capillary wick carrys out the automatic gravity direction for adapting to clump weight around 18 small angle oscillation of steel ball, ensure that capillary wick always
Bear gravity in the axial direction.Then, main casing A1, main casing B2 and third set tooling are integrally put into vacuum drying oven, are heated
To 450 DEG C, heat preservation 1h, then cools 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 includes first set tooling,
Two sets of toolings and third cover tooling；
The first set tooling includes plug (4), clump weight (5), limited block (6), connecting rod one (7), upper flat plate (8), branch
Dagger (9), bottom plate (10)；
Upper flat plate (8), bottom plate (10) are threadedly coupled composition support platform component by support column (9)；
Upper flat plate (8), bottom plate (10) are equipped with circular through hole；
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)；
Plug (4) is inserted into main casing A (1)；
Connecting rod one (7) one end and plug (4) screw thread after circular through hole on main casing A (1), main casing B (2), upper flat plate (8) connect
It connects, connecting rod one (7) other end is threadedly coupled with clump weight (5)；
Limited block (6) be mounted on bottom plate (10) circular through hole in, main casing A (1), main casing B (2), plug (4), clump weight (5),
Connecting rod one (7), limited block (6) center line are located on the same line；
Second set of tooling includes plug (4), clump weight (5), limited block (6), main casing B support bases (11), connecting rod two
(12), upper flat plate (8), support column (9), bottom plate (10)；
Upper flat plate (8), bottom plate (10) are threadedly coupled composition support platform component by support column (9)；
Upper flat plate (8), bottom plate (10) are equipped with circular through hole；
Plug (4) is inserted into 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) are placed in upper flat plate (8)
On；
Connecting rod two (12) is after the circular through hole 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 connecting rod two (12) other end is threadedly coupled with clump weight (5)；
Limited block (6) be mounted on bottom plate (10) circular through hole in, main casing A (1), main casing B (2), plug (4), clump weight (5),
Connecting rod two (12), main casing B support bases (11), limited block (6) center line are located on the same line；
The third set tooling includes clump weight (5), upper flat plate (8), support column (9), bottom plate (10), limited support bar
(13), protection terminal (16), main casing help pull a cart (17), steel ball (18), steel ball seat (19), capillary core print seat (20) and clamp system；Institute
The clamp system stated includes external thread sleeve (14), inner screw sheath (15) and elastic collet (21)；
Upper flat plate (8), bottom plate (10) are threadedly coupled composition support platform component by support column (9)；
Upper flat plate (8), bottom plate (10) are equipped with circular through hole；
Steel ball (18) is located 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 mounted in the circular through hole of bottom plate (10)；
One end of capillary wick (3) coordinates with capillary core print seat (20) end face, the mistake of the other end and protection terminal (16) of capillary wick (3)
It is full of and the end face of section is coordinated to coordinate, the first cylindrical section of protection terminal (16) is extend into the inner cavity of capillary wick (3)；
Interference fit section in protection terminal (16) is engaged with main casing A (1) endoporus；The circular cone in terminal (16) is protected to be oriented to
Section, the second cylindrical section and cylinder guide section are extend into the endoporus of (1) main casing A；
Main casing help pull a cart (17) be hollow cylinder structure, the help pull a cart bottom end of (17) of main casing carries boss, and main casing is helped pull a cart the upper end of (17)
It is sleeved on the outside of (1) main casing A by clamp system, the help pull a cart bottom boss of (17) of main casing is connect with clump weight (5), and main casing is helped pull a cart
(17) main casing A (1) is held under the gravity of clump weight (5).
2. a kind of assembly tool for loop heat pipe evaporator according to claim 1, it is characterised in that：The steel
Pearl (18) isSteel ball, steel ball seat (19) are stepped cylindrical configuration, and both ends body diameter is small, and intermediate cylindrical diameter is big,
Tip designs have " ∨ " shape slot 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：The hair
Thin core print seat is concave structure, is packed into steel ball (18) in baltimore groove, the big purpose of the intermediate cylindrical diameter of steel ball seat (19) be in order to
Steel ball seat (19) is limited when being connect with limited support bar (13).
4. a kind of assembly tool for loop heat pipe evaporator according to claim 1, it is characterised in that：The core
Stick (4) material is the cylindrical structure of molybdenum alloy, including linkage section, the first cylindrical section, interference fit section, the second cylindrical section,
Middle interference fit section diameter is identical as capillary wick (3) diameter, cylindricity 0.004, and it is main shell B (2) to be interference fitted segment length
1.5-2.5 times of length, rest part diameter 0.3~0.5mm small compared with interference fit section diameter, plug (4) overall length is compared with main casing A, master
The sum of shell B length grows 30~50mm；The interference fit section of plug (4) is inserted into main casing A (1).
5. a kind of assembly tool for loop heat pipe evaporator according to claim 1, it is characterised in that：The guarantor
Protect the cylindrical structure that terminal (16) is 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 as 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 small compared with interference fit section diameter, terminal overall length about 20~30mm is protected, 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：The limit
Position supporting rod (13) is stepped cylindrical configuration, and both ends body diameter is small, and intermediate cylindrical diameter is big, and top carries counterbore,
When being connect with limited support bar (13), the cylindrical section of steel ball seat (19) lower end is fallen 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：The steel
Pearl seat (19), steel ball (18), capillary core print seat (20) constitute movable support mechanism.
8. a kind of carrying out loop heat pipe evaporator assemble method using any toolings of claim 1-7, it is characterised in that
The step of this method includes：
(1) it is packed into plug：
Main casing A (1), main casing B (2) and first set tooling are assembled at normal temperatures, then by main casing A (1), main casing B (2) and first
Set tooling, which is put into vacuum drying oven, to be heated, keeps the temperature, is cooling, and plug (4) drops into main casing A (1), main casing B (2) at this time, then will
The assembly that main casing A (1), main casing B (2) and plug (4) are formed integrally is split out from first set tooling；
(2) main casing welds：
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 of waiting for main casing A (1), main casing B (2) welding, main casing
A (1), main casing B (2), plug (4) are integrally transferred to and exit plug process；
(3) plug is exited：
Main casing A (1), the main casing B (2) and plug (4) that step (2) is obtained are whole equipped with second set of tooling, are then placed into
Heating in vacuum drying oven, heat preservation, cooling, plug (4) is exited from main casing A (1) and main casing B (2) at this time, then by main casing A (1),
Main casing B (2) is integrally removed from second set of tooling, is transferred to and is packed into capillary wick process；
(4) it is packed into capillary wick：
At normal temperatures, the main casing A (1) and main casing B (2) and capillary wick (3) step (3) obtained and third set tooling assembly,
Then whole be positioned in vacuum drying oven heats, keeps the temperature, is cooling, to which capillary wick (3) to be fitted into main casing A (1) and main casing B (2)；
Wherein capillary wick (3) bottom is constituted by limited support bar (13) and by steel ball seat (19), steel ball (18), capillary core print seat (20)
Movable support mechanism is supported, capillary wick (3) head and the cooperation of protection terminal (16) end face, guide section in protection terminal (16)
It puts in main casing A (1) inner cavity, interference fit section is stuck at main casing A (1) lumen openings in protection terminal (16), and 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 gravity of clump weight (5)；
Under gravity, capillary wick (3) is swung around steel ball (18) carrys out the automatic gravity direction for adapting to clump weight (5), ensure that capillary wick
(3) gravity in the axial direction is born always.
9. assemble method according to claim 8, it is characterised in that：Step (1), step (3) and the step (4)
In, the vacuum degree of vacuum drying oven is 10-3Pa, heating temperature are 440-460 DEG C, and heating rate is 10 DEG C/min, soaking time 1h,
Then 50 DEG C are cooled to the furnace.
10. assemble method according to claim 8, it is characterised in that：In the step (2), vacuum electron beam boxing
Parameter be：Vacuum degree is 7*10-2Pa, accelerating potential are 50,000 volts, focus current 650mA, speed of welding 1m/min, weldering
It is 10-15mA to connect line.
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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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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107186329B (en) * | 2017-06-21 | 2019-10-18 | 北京控制工程研究所 | A kind of electron beam welding welding method of molybdenum alloy and tungsten alloy |
| 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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| 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 |
| CN201856068U (en) * | 2010-11-12 | 2011-06-08 | 北京星达技术开发公司 | Thermal assembly equipment with gas protecting function |
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