CN109014900A - The assembly method of flexible joint nozzle - Google Patents
The assembly method of flexible joint nozzle Download PDFInfo
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- CN109014900A CN109014900A CN201811026202.8A CN201811026202A CN109014900A CN 109014900 A CN109014900 A CN 109014900A CN 201811026202 A CN201811026202 A CN 201811026202A CN 109014900 A CN109014900 A CN 109014900A
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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
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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Abstract
The invention discloses a kind of assembly methods of flexible joint nozzle, flexible joint nozzle includes flexible joint, fixed reverse taper component, diffuser component, movable reverse taper heat insulation layer, throat lining body and hood for protecting rider, assembly method of the present invention is by controlling each component locations precision of flexible joint nozzle using positioning screw, fitting surface concentricity and verticality are improved by processing machining allowance in advance, fixed throat lining body is sealed using sealant and adhesive, it is checked before hood for protecting rider assembly using swing inner cavity of the endoscope to flexible joint nozzle component and sets up independent assembly area control flexible joint nozzle and swing inner cavity without fifth wheel, solves the assembly problem of flexible joint nozzle, improve production efficiency, to ensure that the assembly precision and quality of flexible joint nozzle；In addition, the flexible joint nozzle that assembly method of the invention is assembled is examined by multiple ground experiment and flight test, product quality fully meets design requirement.
Description
Technical field
The invention belongs to engine flexible spray bar technology fields, in particular to a kind of assembly method of flexible joint nozzle.
Background technique
Jet pipe is rocket engine important feature part, is located at engine tail portion, is high-temperature high-pressure fuel gas in combustion chamber
Outlet is the important component of rocket engine energy conversion, directly affects the performance of engine.Flexible joint nozzle is a kind of with complete
Axis oscillating function can carry out the complicated jet pipe of vector controlled by swinging.As shown in Figure 1, flexible joint nozzle mainly includes flexibility
The components such as connector 1, fixed reverse taper component 2, diffuser component 3, movable reverse taper heat insulation layer 4, throat lining body 5 and hood for protecting rider 6.
Each component assembling position precision height of flexible joint nozzle, stable structure, leakproofness are good and swing inner cavity is without fifth wheel is
The premise that flexible joint nozzle works normally, therefore, the assembling quality for improving flexible joint nozzle just can guarantee the normal work of flexible joint nozzle.
Existing mounting technology is primarily present as following drawbacks:
1) flexible joint 1, fixed reverse taper component 2, diffuser component 3 are assembled by screw and are fixed, and due to screw and are led to
There are larger gap between hole, the circumferential direction of each component and radial without positioning in assembling process, therefore after assembling each component radial direction
And circumferential position accuracy not can guarantee；
2) flexible joint 1, fixed reverse taper component 2, diffuser component 3, movable reverse taper heat insulation layer 4 assembly flexibility
Nozzle component, each component of composition flexible joint nozzle component, which is adopted, to be screwed or bonding way carries out assembly fixation, due to assembly
Error adds up, and the coaxiality of inner hole of each component and end face squareness are poor after assembly, and flexible joint nozzle component and throat lining body is caused to fill
The gap matched is uneven, and throat lining body and the assembling of flexible joint nozzle component are difficult；
3) flexible joint 1, fixed reverse taper component 2 and diffuser component 3 are formed after assembling swings inner cavity, external with blocking
6 protection of cover prevents fifth wheel from entering flexible joint nozzle and swings inner cavity；This method can prevent flexible spray in flexible joint nozzle after the assembly is completed
Pipe swings inner cavity and enters fifth wheel, but can not prevent flexible joint nozzle from swinging inner cavity and enter fifth wheel in assembling process, and jet pipe is just
There are hidden danger for often work.
Summary of the invention
Present invention aim to the deficiency of the above-mentioned technology of needle, provide one kind can improve each component assembling precision,
It can ensure that the assembly method for the flexible joint nozzle that flexible joint nozzle works normally again.
To achieve the above object, the assembly method of the flexible joint nozzle designed by the present invention, the flexible joint nozzle include flexibility
Connector, fixed reverse taper component, diffuser component, movable reverse taper heat insulation layer, throat lining body and hood for protecting rider, the flexible joint nozzle
Assembly method includes the following steps:
1) process and assemble face surplus
The face A reserved margin is assembled with throat lining body in the movable reverse taper shell process of flexible joint；Movable reverse taper
It is equal with the face assembly B of throat lining body, the assembly face C, the assembly face D, the assembly face E, the assembly face F and the assembly face G in heat insulation layer process
It is reserved；
2) flexible joint and fixed reverse taper component assembly
The fixation rear joint of flexible joint and fixed reverse taper component are first mounted to two first few in assembling process
Positioning screw carries out circumferential direction and radial positioning to the fixation rear joint of flexible joint and fixed reverse taper component；All first positioning
After screw positioning, the rigging screw of remaining hole location between the fixation rear joint of flexible joint and fixed reverse taper component is installed；Its
After the rigging screw of remaining hole location installs, all first positioning screws are unloaded, in all hole locations for installing the first positioning screw
Place is respectively mounted rigging screw；
3) flexible joint and diffuser component assemble
The movable reverse taper shell and diffuser component of flexible joint are first mounted to two second few in assembling process
Positioning screw carries out circumferential and radial positioning to the movable reverse taper shell and diffuser component of flexible joint；All second is fixed
After the screw positioning of position, the rigging screw of remaining hole location between the movable reverse taper shell of flexible joint and diffuser component is installed；
After the rigging screw of remaining hole location installs, all second positioning screws are unloaded, in all holes for installing the second positioning screw
It is respectively mounted rigging screw at position, completes being completed for flexible joint nozzle component；
4) machining allowance
After flexible joint nozzle component is completed, the centering diffuser component face inner hole M and the bounce of the end face face N are not more than
0.02mm carries out vehicle to the assembly face A, the assembly face B, the assembly face C, the assembly face D, the assembly face E, the assembly face F and assembly G in step 1)
It cuts to final size；
5) throat lining body and flexible joint nozzle component assemble
Before throat lining body is pressed into flexible joint nozzle component, organic silicon adhesive is smeared in the face diffuser component inner hole M, is being assembled
The face A, the assembly face B, the assembly face C, the assembly face D, the assembly face E, the assembly face F and assembly G smear the filling sealing of D03 putty respectively；
6) installation hood for protecting rider forms flexible joint nozzle
It carries out hood for protecting rider and flexible joint nozzle component to assembly flexible joint nozzle.
Further, in the step 2), all first positioning screws are symmetrical along the central axes of the flexible joint
Distribution；And the first head threads of each first positioning screw and the fixation rear joint threaded hole of the flexible joint carry out
Assembly positioning, the first through hole of the first tail portion cylindrical section of each first positioning screw and the fixed reverse taper component into
Luggage is with positioning；Also, after the fixation of the first head threads outer diameter of each first positioning screw and the flexible joint
Joint screw thread hole internal diameter is identical, the first tail portion cylindrical section outer diameter of each first positioning screw and the fixed reverse taper group
The first through hole internal diameter of part is identical.
Further, in the step 3), all second positioning screws are symmetrical along the central axes of the flexible joint
Distribution；Second head threads of each second positioning screw and the movable reverse taper shell threaded hole of the flexible joint into
Luggage is carried out with positioning, the second tail portion cylindrical section of each second positioning screw and the second through-hole of the diffuser component
Assembly positioning；Also, the movable back taper of the second head threads outer diameter of each second positioning screw and the flexible joint
Body shell body threaded hole internal diameter is identical, the second tail portion cylindrical section outer diameter and the diffuser component of each second positioning screw
The second through-hole internal diameter it is identical.
Further, in the step 1), 0.1~0.3mm surplus is reserved in the assembly face A；Assemble the face B, the assembly face C, assembly D
Face, the assembly face E, the reserved 0.1~0.3mm surplus in the assembly face F and the assembly face G, the assembly face B, the assembly face D and the assembly face F are
Unilateral bridge gap.
Further, in the step 2), the first through hole tolerance of fixed reverse taper component is ± 0.03mm；The step
3) in, the second through-hole tolerance of diffuser component is ± 0.03mm.
Further, in the step 5), organic silicon adhesive is to smear the serial single part of room temperature curing organic silicone adhesive of D
Agent.
Further, in the step 6), before hood for protecting rider assembly, using endoscope in the swing of flexible joint nozzle component
Chamber is checked, and is cleared up with dust catcher inner cavity is swung；Then hood for protecting rider assembly manipulation region is individually set up, will be blocked
Cover carries out assemblying flexible joint nozzle with flexible joint nozzle component, and forward and backward to each build-up member and operative employee in assembly hood for protecting rider
Tool carries out checking record.
Compared with prior art, the present invention having the advantage that assembly method of the present invention by controlling using positioning screw
Each component locations precision of flexible joint nozzle improves fitting surface concentricity and verticality, utilization by processing machining allowance in advance
Sealant and adhesive seal fixed throat lining body, utilize in swing of the endoscope to flexible joint nozzle component before hood for protecting rider assembles
Chamber, which is checked and sets up independent assembly area control flexible joint nozzle, swings inner cavity without fifth wheel, solves the assembly of flexible joint nozzle
Problem improves production efficiency, to ensure that the assembly precision and quality of flexible joint nozzle；In addition, assembly method of the invention
The flexible joint nozzle of assembly is examined by multiple ground experiment and flight test, and product quality fully meets design requirement.
Detailed description of the invention
Fig. 1 is flexible joint nozzle structural schematic diagram；
Fig. 2 is flexible joint of the present invention and fixed reverse taper component assembling structure schematic diagram；
Fig. 3 is the first positioning screw structural schematic diagram of the invention.
Fig. 4 is flexible joint of the present invention and diffuser component assembling structure schematic diagram；
Fig. 5 is the second positioning screw structural schematic diagram of the invention；
Fig. 6 is flexible joint nozzle component fitting surface schematic diagram of the present invention.
Each part numbers are as follows in figure:
Flexible joint 1 (wherein: fixed rear joint 1a, movable reverse taper shell 1b), fixed reverse taper component 2, diffuser
Component 3, movable reverse taper heat insulation layer 4, throat lining body 5, hood for protecting rider 6, rigging screw 7, the second positioning screw 8 are (wherein: the second head
Screw thread 8a, the second tail portion cylindrical section 8b), swing inner cavity 9, the first positioning screw 10 (wherein: the first head threads 10a, the first tail
Portion cylindrical section 10b).
Specific embodiment
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments, convenient for more clearly understanding this
Invention, but they limiting the invention.
Flexible joint nozzle as shown in Figure 1 includes flexible joint 1, fixed reverse taper component 2, diffuser component 3, movable reverse taper
Heat insulation layer 4, throat lining body 5 and hood for protecting rider 6, the assembly method of flexible joint nozzle include the following steps:
1) process and assemble face surplus
After the movable reverse taper shell 1b and diffuser component 3 of flexible joint 1 are fixed by rigging screw assembly, activity is fallen
Cone heat insulation layer 4 is adhered on the movable reverse taper shell 1b of flexible joint 1, and since rigging error is accumulative, flexible joint 1 is expanded
Coaxiality of inner hole and end face squareness are poor after scattered section component 3 and movable reverse taper 4 three component assemblings of heat insulation layer；It is flexible to improve
The movable reverse taper shell 1b of the coaxiality of inner hole and end face squareness of nozzle component and throat lining body fitting surface, flexible joint 1 adds
The face A, which is assembled, with throat lining body 5 during work reserves 0.1~0.3mm (preferably 0.2mm) surplus；Movable reverse taper heat insulation layer 4 is processed
In journey with the face assembly B of throat lining body 5, the assembly face C, the assembly face D, the assembly face E, the assembly face F and the assembly face G reserved 0.1~
0.3mm (preferably 0.2mm) surplus, the assembly face B, the assembly face D and the assembly face F are unilateral bridge gap；
2) flexible joint 1 and fixed reverse taper component 2 assemble
The fixation rear joint 1a of flexible joint 1 and fixed reverse taper component 2 are in assembling process, as shown in Fig. 2, pacifying first
It fills two the first positioning screws 10 and circumferential and radial direction is carried out to the fixation rear joint 1a of flexible joint 1 and fixed reverse taper component 2
Positioning (i.e. after two the first positioning screws 10 assembly, flexible joint 1 and fixed reverse taper component 2 are just fixed, it is circumferential and
It is radial immovable), two the first positioning screws 10 are symmetrical along the central axes of flexible joint 1；Two first positioning spiral shells
After 10 positioning of nail, the rigging screw of remaining hole location between the fixation rear joint 1a of flexible joint 1 and fixed reverse taper component 2 is installed
7；After the rigging screw 7 of remaining hole location installs, two the first positioning screws 10 are unloaded, the first positioning screw 10 is being installed
It is respectively mounted rigging screw 7 at two hole locations, completes the assembly of the fixation rear joint 1a and fixed reverse taper component 2 of flexible joint 1
And positioning；
As shown in connection with fig. 3, the fixation rear joint 1a of the first head threads 10a of the first positioning screw 10 and flexible joint 1
Threaded hole carries out assembly positioning, and the first tail portion cylindrical section 10b of the first positioning screw 10 leads to the first of fixed reverse taper component 2
Hole carries out assembly positioning；Also, the first head threads 10a outer diameter of the first positioning screw 10 and the fixation of flexible joint 1 are followed by
Head 1a threaded hole internal diameter is identical, and the of the first tail portion cylindrical section 10b outer diameter of the first positioning screw 10 and fixed reverse taper component 2
One through-hole internal diameter is identical；
To further increase assembly precision, the first through hole tolerance of fixed reverse taper component 2 is ± 0.03mm；
3) flexible joint 1 and diffuser component 3 assemble
The movable reverse taper shell 1b and diffuser component 3 of flexible joint 1 go to install first shown in 4 in assembling process
Two the second positioning screws 8 circumferential and radial determine to the movable reverse taper shell 1b and diffuser component 3 of flexible joint 1
(i.e. after two the second positioning screw 8 assembly, flexible joint 1 is just fixed with diffuser component 3, circumferential and radial equal for position
It is immovable), two the second positioning screws 8 are symmetrical along the central axes of flexible joint 1；Two the second positioning screw 8 positioning
Afterwards, the rigging screw 7 of remaining hole location between the movable reverse taper shell 1b and diffuser component 3 of flexible joint 1 is installed；Remaining hole
After the rigging screw 7 of position installs, two the second positioning screws 8 are unloaded, at two hole locations for installing the second positioning screw 8
It is respectively mounted rigging screw 7, the assembly and positioning of the movable reverse taper shell 1b and diffuser component 3 of flexible joint 1 is completed, completes
Flexible joint nozzle component is completed；
As shown in connection with fig. 5, the movable reverse taper shell of the second head threads 8a of the second positioning screw 8 and flexible joint 1
1b threaded hole carries out assembly positioning, the second through-hole of the second tail portion cylindrical section 8b of the second positioning screw 8 and diffuser component 3 into
Luggage is with positioning；Also, the movable reverse taper shell of the second head threads 8a outer diameter of the second positioning screw 8 and flexible joint 1
1b threaded hole internal diameter is identical, the second through-hole of the second tail portion cylindrical section 10b outer diameter and diffuser component 3 of the second positioning screw 10
Internal diameter is identical；
To further increase assembly precision, the second through-hole tolerance of diffuser component 3 is ± 0.03mm；
4) machining allowance
After flexible joint nozzle component is completed, 3 face inner hole M of centering diffuser component and the bounce of the end face face N are not more than
0.02mm carries out vehicle to the assembly face A, the assembly face B, the assembly face C, the assembly face D, the assembly face E, the assembly face F and assembly G in step 1)
It cuts to final size, improves the coaxiality of inner hole and end face squareness of entire fitting surface, as shown in connection with fig. 6；
5) throat lining body 5 and flexible joint nozzle component assemble
Since throat lining body 5 and each mating surface gap of flexible joint nozzle component are generally 0.05~0.15mm, to guarantee jet pipe
Closed type before throat lining body 5 is pressed into flexible joint nozzle component, smears the serial single part of room temperature curing of D in 3 face inner hole M of diffuser component
Organic silicon adhesive is smeared respectively in the assembly face A, the assembly face B, the assembly face C, the assembly face D, the assembly face E, the assembly face F and assembly G
The filling sealing of D03 putty, as shown in connection with fig. 6；
Although D03 putty favorable sealing property, bonding force is poor, for the assembly for guaranteeing throat lining body and flexible joint nozzle component
Intensity is smeared single part of room temperature curing organic silicon adhesive progress gluing of D series in 3 face inner hole M of diffuser component and is fixed, both guaranteed
The leakproofness of assembly, in turn ensures the intensity of assembly；
6) installation hood for protecting rider 6 forms flexible joint nozzle
Before the assembly of hood for protecting rider 6, checked using swing inner cavity 9 of the endoscope to flexible joint nozzle component, and use dust suction
Device is cleared up inner cavity 9 is swung, it is ensured that swings inner cavity 9 without fifth wheel；6 assembly manipulation region of hood for protecting rider individually is set up, will be hidden
Block cover 6 and flexible joint nozzle component carry out assemblying flexible joint nozzle, and forward and backward to each build-up member and behaviour in assembly hood for protecting rider 6
It carrying out checking record as tool, it is ensured that the entire assembling process of hood for protecting rider 6 falls into the swing inner cavity 9 of flexible joint nozzle 1 without component is lost,
To achieve the purpose that flexible joint nozzle component swings the control of 9 fifth wheel of inner cavity.
Assembly method of the present invention is by controlling each component locations precision of flexible joint nozzle, by processing in advance using positioning screw
Machining allowance is improved fitting surface concentricity and verticality, fixed throat lining body is sealed using sealant and adhesive, is hiding out
Block cover 6 is checked using swing inner cavity 9 of the endoscope to flexible joint nozzle component before assembling and sets up independent assembly area control
Flexible joint nozzle swings inner cavity without fifth wheel, solves the assembly problem of flexible joint nozzle, improves production efficiency, to ensure that soft
The assembly precision and quality of property jet pipe.
Assembly method of the present invention is further elaborated below with reference to specific example
Embodiment
1) process and assemble face surplus
The face A, which is assembled, with throat lining body 5 in the movable reverse taper shell 1b process of flexible joint 1 reserves 0.2mm surplus；It is living
In dynamic 4 process of reverse taper heat insulation layer with the face assembly B of throat lining body 5, the assembly face C, the assembly face D, the assembly face E, the assembly face F and
The reserved 0.2mm surplus in the face G is assembled, the assembly face B, the assembly face D and the assembly face F are unilateral bridge gap；
2) flexible joint 1 and fixed reverse taper component 2 assemble
The fixation rear joint 1a of flexible joint 1 and fixed reverse taper component 2 install two first in assembling process first
Positioning screw 10 carries out circumferential direction and radial positioning to the fixation rear joint 1a of flexible joint 1 and fixed reverse taper component 2, and two the
One positioning screw 10 is symmetrical along the central axes of flexible joint 1；After two the first positioning screw 10 positioning, flexible joint is installed
The M6 rigging screw of remaining hole location between 1 fixation rear joint 1a and fixed reverse taper component 2；The M6 rigging screw of remaining hole location
After installing, two the first positioning screws 10 are unloaded, M6 dress is respectively mounted at two hole locations for installing the first positioning screw 10
With screw, the assembly and positioning of the fixation rear joint 1a and fixed reverse taper component 2 of flexible joint 1 are completed；
First head M6 screw thread of the first positioning screw 10 is assembled with the fixation rear joint M6 threaded hole of flexible joint 1
Positioning, the first tail portion of the first positioning screw 10The first of (- 0.04/-0.08) cylindrical section and fixed reverse taper component 2
Through-hole carries out assembly positioning；And the first of fixed reverse taper component 2Through-hole is pressedCarry out plus keep under strict control system processing；
3) flexible joint 1 and diffuser component 3 assemble
The movable reverse taper shell 1b and diffuser component 3 of flexible joint 1 install two second in assembling process first
Positioning screw 8 carries out circumferential and radial positioning to the movable reverse taper shell 1b and diffuser component 3 of flexible joint 1, and two
Second positioning screw 8 is symmetrical along the central axes of flexible joint 1；After two the second positioning screw 8 positioning, flexible joint is installed
The M6 rigging screw of remaining hole location between 1 movable reverse taper shell 1b and diffuser component 3；The M6 rigging screw of remaining hole location
After installing, two the second positioning screws 8 are unloaded, M6 assembly is respectively mounted at two hole locations for installing the second positioning screw 8
Screw completes the assembly and positioning of the movable reverse taper shell 1b and diffuser component 3 of flexible joint 1, completes flexible joint nozzle group
Part is completed；
Second head M6 screw thread of the second positioning screw 8 and the movable reverse taper shell M6 threaded hole of flexible joint 1 carry out
Assembly positioning, the second tail portion of the second positioning screw 8The second of (- 0.04/-0.08) cylindrical section and diffuser component 3
Through-hole carries out assembly positioning；And the second of diffuser component 3Through-hole is pressedCarry out plus keep under strict control system processing；
4) machining allowance
After flexible joint nozzle component is completed, 3 face inner hole M of centering diffuser component and the bounce of the end face face N are not more than
0.02mm carries out vehicle to the assembly face A, the assembly face B, the assembly face C, the assembly face D, the assembly face E, the assembly face F and assembly G in step 1)
It cuts to final size, improves the coaxiality of inner hole and end face squareness of entire fitting surface；
5) throat lining body 5 and flexible joint nozzle component assemble
Throat lining body 5 and each mating surface gap of flexible joint nozzle component are 0.05~0.15mm, and throat lining body 5 is pressed into flexible joint nozzle group
Before part, the serial single part of room temperature curing organic silicon adhesive of D is smeared in 3 face inner hole M of diffuser component, in the assembly face A, assembly B
Face, the assembly face C, the assembly face D, the assembly face E, the assembly face F and assembly G smear the filling sealing of D03 putty respectively；
6) installation hood for protecting rider 6 forms flexible joint nozzle
Before the assembly of hood for protecting rider 6, checked using swing inner cavity 9 of the endoscope to flexible joint nozzle 1, and with dust catcher pair
It swings inner cavity 9 to be cleared up, it is ensured that swing inner cavity 9 without fifth wheel；6 assembly manipulation region of hood for protecting rider individually is set up, by hood for protecting rider 6
Assembly flexible joint nozzle with flexible joint nozzle 1, and assembly hood for protecting rider 6 it is forward and backward to each build-up member and operational instrument into
Row checks record, it is ensured that the entire assembling process of hood for protecting rider 6 falls into the swing inner cavity 9 of flexible joint nozzle 1 without component is lost, to reach
Flexible joint nozzle 1 swings the purpose of the control of 9 fifth wheel of inner cavity.
Comparative example
The assembling process of conventional flex jet pipe
1) flexible joint 1 is directly fixed using M6 screw with fixed reverse taper component 2；
2) flexible joint 1 is directly fixed using M6 screw with diffuser component 3；
3) flexible joint 1, fixed reverse taper component 2, diffuser component 3, each part machine of movable reverse taper heat insulation layer 4 are added to
Then final size is assembled, carry out subsequent assembly after being completed；
4) throat lining body 2 is assembled with flexible joint nozzle component, smears the serial single part of room temperature curing organosilicon of D in each fitting surface
The filling sealing of adhesive/sealing agent D03 putty, gluing is smeared in the face fitting surface M at throat lining body 2 with diffuser component 3 wherein one
Agent carries out gluing and fixes；
5) after each component of flexible joint nozzle is completed, outside is protected with hood for protecting rider 6, prevents fifth wheel from entering flexible joint nozzle pendulum
Dynamic inner cavity.
The big unit of above-mentioned all sizes is mm (millimeter).
Embodiment is compared with comparative example:
1, increase the positioning of the first positioning screw, eliminate the influence of 7 via hole of φ and M6 Screw assembly deviation, control flexibility
The concentricity of connector and fixed reverse taper component, the two concentricity of embodiment can control within φ 0.2, and comparative example
The two coaxiality deviation maximum can arrive φ 0.5；
2, increase by the second positioning screw, eliminate the influence of 7 via hole of φ and M6 Screw assembly deviation, control flexible joint
It can control within φ 0.2 with the two concentricity of the concentricity of diffuser component, embodiment, and the two of comparative example is coaxial
Degree deviation maximum can arrive φ 0.5；
3, embodiment is completed in flexible joint, fixed reverse taper component, diffuser component, movable reverse taper heat insulation layer
The processing for increasing fitting surface afterwards can ensure that the concentricity and verticality of throat lining body fitting surface, conducive to the press-fitting of throat lining body, larynx lining
Body and flexible joint nozzle pack clearance are uniform, and throat lining body assembles no problem, meet design requirement；And due to by each assembly in comparative example
The influence of element coaxial degree difference, throat lining body assembly be difficult in place, can not remit rent design requirement gap width；
4, the assembly of hood for protecting rider is not set to critical process in comparative example, can only prevent flexible joint nozzle swing inner cavity into
Enter fifth wheel, but can not prevent flexible joint nozzle from swinging inner cavity and enter fifth wheel in assembling process；And screening is strengthened in embodiment
The process control of block cover assembly, can ensure that after hood for protecting rider completes assembly, flexible joint nozzle inner cavity is without fifth wheel, to guarantee flexibility
The normal work of jet pipe.
Claims (7)
1. a kind of assembly method of flexible joint nozzle, the flexible joint nozzle includes flexible joint (1), fixed reverse taper component (2), expands
Dissipate section component (3), movable reverse taper heat insulation layer (4), throat lining body (5) and hood for protecting rider (6), it is characterised in that: the flexible joint nozzle
Assembly method include the following steps:
1) process and assemble face surplus
The face A reserved margin is assembled with throat lining body (5) in movable reverse taper shell (1b) process of flexible joint (1)；Activity
In reverse taper heat insulation layer (4) process with the face assembly B of throat lining body (5), assembly the face C, assembly the face D, assembly the face E, assembly the face F
And the assembly face G is reserved；
2) flexible joint (1) and fixed reverse taper component (2) assembly
The fixation rear joint (1a) of flexible joint (1) and fixed reverse taper component (2) are first mounted to few two in assembling process
A first positioning screw (10) to the fixation rear joint (1a) of flexible joint (1) and fixed reverse taper component (2) carry out it is circumferential and
Radial positioning；After all first positioning screw (10) positioning, the fixation rear joint (1a) of flexible joint (1) is installed and fixes back taper
The rigging screw (7) of remaining hole location between body component (2)；After the rigging screw (7) of remaining hole location installs, all are unloaded
One positioning screw (10) is respectively mounted rigging screw (7) at all hole locations of installation the first positioning screw (10)；
3) flexible joint (1) and diffuser component (3) are assembled
The movable reverse taper shell (1b) of flexible joint (1) and diffuser component (3) are first mounted to few two in assembling process
A second positioning screw (8) carries out circumferential direction and diameter to the movable reverse taper shell (1b) of flexible joint (1) and diffuser component (3)
To positioning；After all second positioning screw (8) positioning, movable reverse taper shell (1b) and the diffusion of flexible joint (1) are installed
The rigging screw (7) of remaining hole location between section component (3)；After the rigging screw (7) of remaining hole location installs, all are unloaded
Two positioning screws (8) are respectively mounted rigging screw (7) at all hole locations of installation the second positioning screw (8), complete flexible joint nozzle
Component is completed；
4) machining allowance
After flexible joint nozzle component is completed, centering diffuser component (3) face inner hole M and the bounce of the end face face N are not more than 0.02mm,
Turning is carried out to most to the assembly face A, the assembly face B, the assembly face C, the assembly face D, the assembly face E, the assembly face F and assembly G in step 1)
Whole size；
5) throat lining body (5) and flexible joint nozzle component assemble
Before throat lining body (5) is pressed into flexible joint nozzle component, organic silicon adhesive is smeared in diffuser component (3) face inner hole M, is being filled
The filling sealing of D03 putty is smeared respectively with the face A, the assembly face B, the assembly face C, the assembly face D, the assembly face E, the assembly face F and assembly G；
6) installation hood for protecting rider (6) forms flexible joint nozzle
Hood for protecting rider (6) and flexible joint nozzle component are carried out assemblying flexible joint nozzle.
2. the assembly method of flexible joint nozzle according to claim 1, it is characterised in that: in the step 2), all described
One positioning screw (10) is symmetrical along the central axes of the flexible joint (1)；And each first positioning screw (10)
Fixation rear joint (1a) threaded hole of first head threads (10a) and the flexible joint (1) carries out assembly positioning, described each
First tail portion cylindrical section (10b) of the first positioning screw (10) and the first through hole of the fixed reverse taper component (2) are filled
With positioning；Also, the first head threads (10a) outer diameter of each first positioning screw (10) and the flexible joint (1)
Fixation rear joint (1a) threaded hole internal diameter it is identical, the first tail portion cylindrical section (10b) of each first positioning screw (10)
Outer diameter is identical as the first through hole internal diameter of the fixed reverse taper component (2).
3. the assembly method of flexible joint nozzle according to claim 1, it is characterised in that: in the step 3), all described
Two positioning screws (8) are symmetrical along the central axes of the flexible joint (1)；The second of each second positioning screw (8)
Movable reverse taper shell (1b) threaded hole of head threads (8a) and the flexible joint (1) carries out assembly positioning, each described
Second tail portion cylindrical section (8b) of the second positioning screw (8) and the second through-hole of the diffuser component (3) carry out assembly positioning；
Also, the movable back taper of the second head threads (8a) outer diameter of each second positioning screw (8) and the flexible joint (1)
Body shell body (1b) threaded hole internal diameter is identical, the second tail portion cylindrical section (10b) outer diameter of each second positioning screw (10) with
Second through-hole internal diameter of the diffuser component (3) is identical.
4. the assembly method of flexible joint nozzle according to claim 1, it is characterised in that: in the step 1), the assembly face A is reserved
0.1~0.3mm surplus；Assemble the face B, the assembly face C, the assembly face D, the assembly face E, the assembly face F and the assembly face G reserved 0.1~
0.3mm surplus, the assembly face B, the assembly face D and the assembly face F are unilateral bridge gap.
5. the assembly method of flexible joint nozzle according to claim 1, it is characterised in that: in the step 2), fixed reverse taper
The first through hole tolerance of component (2) is ± 0.03mm；In the step 3), the second through-hole tolerance of diffuser component (3) is ±
0.03mm。
6. the assembly method of flexible joint nozzle according to claim 1, it is characterised in that: in the step 5), organic silicone adhesive
Agent is to smear the serial single part of room temperature curing organic silicon adhesive of D.
7. the assembly method of flexible joint nozzle according to claim 1, it is characterised in that: in the step 6), in hood for protecting rider (6)
It before assembly, is checked using swing inner cavity (9) of the endoscope to flexible joint nozzle component, and with dust catcher to swing inner cavity (9)
It is cleared up；Then hood for protecting rider (6) assembly manipulation region is individually set up, hood for protecting rider (6) is assembled with flexible joint nozzle component
Flexible joint nozzle is formed, and hood for protecting rider (6) are forward and backward carries out checking record to each build-up member and operational instrument in assembly.
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| CN201811026202.8A CN109014900B (en) | 2018-09-04 | 2018-09-04 | Method for assembling flexible nozzle |
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| CN109014900B CN109014900B (en) | 2020-08-04 |
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