CN218576057U - Dismounting device of fuel nozzle main door core - Google Patents
Dismounting device of fuel nozzle main door core Download PDFInfo
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- CN218576057U CN218576057U CN202222287119.4U CN202222287119U CN218576057U CN 218576057 U CN218576057 U CN 218576057U CN 202222287119 U CN202222287119 U CN 202222287119U CN 218576057 U CN218576057 U CN 218576057U
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- main door
- clamping
- door core
- nozzle
- fuel nozzle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses a dismounting device of fuel nozzle owner door core, the device includes: the clamping mechanism comprises a clamping part consisting of at least two clamping pieces separated from each other; and the adjusting mechanism can adjust the opening and closing degree of the clamping part so as to clamp or loosen the main door core by the clamping mechanism. Based on the technical scheme of the utility model, not only can fix the position of fuel nozzle, can also avoid exerting oneself inhomogeneous main door core that leads to and nozzle inner wall to produce when dismantling and wipe to and avoided when dismantling main door core, exert oneself too big main door core and nozzle casing throw away the distance and lead to hitting object, people scheduling problem on every side greatly.
Description
Technical Field
The utility model belongs to the technical field of the fuel nozzle maintenance, especially, relate to a dismounting device of fuel nozzle owner door core.
Background
The fuel nozzle is a key component of a combustion chamber of an engine, fuel is finely scattered into the combustion chamber through flow channel restriction, is mixed with air, is combusted and expanded to do work to push an airplane to lift off, and the fuel nozzle has the working principle that the fuel passes through the nozzle flow channel restriction under high pressure, is sprayed in an atomization mode, and is mixed and combusted with compressed air according to a certain proportion to form a working source of the engine. The fuel nozzle is a life source of a combustion chamber and is a component for providing fuel for an engine, and the fuel nozzle has the main functions of atomizing or vaporizing the fuel, accelerating the formation of mixed gas, ensuring stable combustion and improving efficiency. The performance of the nozzle determines the performance, reliability, economy and life of the engine.
When a fuel nozzle is serviced, a flow failure is the most frequent failure of the fuel nozzle. When the flow exceeds the specified standard range, the nozzle is scrapped and can not be used continuously, when the flow is smaller than the specified standard range, most of the conditions are caused by carbon deposition in the nozzle, so that the nozzle is firstly placed into an ultrasonic cleaning machine to exceed the carbon deposition in the nozzle through a specific frequency during repair, the flow channel of the nozzle is free from blockage, the fuel flow is increased and meets the standard, and some nozzles are still poor in performance after ultrasonic cleaning, and the performance of the nozzles can only be repaired in a deep mode to be qualified. Repairing the nozzle flow is also a time-consuming process in the entire nozzle deep repair process.
The flow deep repair comprises repair of small flow and large flow, wherein the step that the large flow is unqualified and needs repair is extremely troublesome, the large flow is unqualified and is influenced by a main door core of a part in the nozzle, so when the problem of large flow is unqualified every time, the main door core in the large flow needs to be taken out for repair, the main door core is internally composed of a main bushing, a main sealing ring, a limiting sleeve, a main clamping ring, a main door spring and a main door spring, the main door core is clamped in the nozzle, the main door core and the shell are tightly matched due to the sealing ring, a common disassembling tool is easy to cause the main door core and the nozzle shell to throw away too far to hit surrounding objects and people and even cause ground falling when the main door core is disassembled, and the main door core and the inner wall of the shell are easy to scrape to generate parts so as the hand force is uneven when the main door core is pulled out.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art defect, provide a dismounting device of fuel nozzle owner door core, can be at the in-process of dismantling the owner door core, protect the owner door core, avoid appearing the secondary damage.
The purpose of the utility model is realized through the following technical scheme:
a fuel injector main door core removal device comprising:
the clamping mechanism comprises a clamping part consisting of at least two clamping pieces separated from each other;
and the adjusting mechanism can adjust the opening and closing degree of the clamping part so as to clamp or loosen the main door core by the clamping mechanism.
In an embodiment, adjustment mechanism has the confession the through-hole that the clamping part runs through, adjustment mechanism can follow the axial displacement of clamping part makes at the removal in-process the clamping piece is close to each other or is kept away from each other to adjust the degree of opening and shutting of clamping part, through this embodiment, utilize adjustment mechanism's removal to adjust the degree of opening and shutting of clamping part, can accomplish the centre gripping of main door core and the operation of loosening after the dismantlement at the dismantlement in-process to main door core.
In one embodiment, the clamping mechanism further comprises a fixed end, two semicircular clamping pieces are arranged on the fixed end, and through the embodiment, the two semicircular clamping pieces are arranged on the fixed end, so that in the moving process of the adjusting mechanism, the two separated clamping pieces are mutually close to each other, and then the main door core is clamped.
In an embodiment, the clamping part is by a plurality of the horn mouth that the clamping piece constitutes, the clamping piece is located the both sides of horn mouth main aspects are all followed the axial direction of horn mouth inwards extends there is the centre gripping section, the centre gripping section is continuous dentate structure, and through this embodiment, dentate structure's centre gripping section can block the inside clearance of main door spring of main door core for when extracting main door core, guarantee the stability that clamping part and main door core are connected, avoid both to drop, the centre gripping section is located the main aspects of horn mouth simultaneously, makes the clamping part can accomplish the centre gripping operation to main door core when stretching into fuel nozzle.
In one embodiment, the clamping mechanism is in threaded connection with the adjusting mechanism, and the surface of the clamping mechanism is provided with an external thread matched with the inner surface of the adjusting mechanism.
In an embodiment, adjustment mechanism is the round platform structure, and the less one end of its diameter still is provided with the atress section that is the terrace with edge structure, through this embodiment, the operating personnel of being convenient for twists the atress section through tools such as spanner, and then control adjustment mechanism's displacement direction and displacement distance.
In an embodiment, still include the workstation, install the support column on the workstation, still run through on the support column and install the threaded rod, the threaded rod with fixture connects, through this embodiment, workstation and support column that set up make things convenient for operating personnel to extract the main door core through the threaded rod, in the repeated operation in-process, can improve operating personnel's operating efficiency.
In one embodiment, the clamping mechanism is provided with a ball head at one end close to the support column, and one end of the threaded rod is provided with a joint bearing connected with the ball head.
In one embodiment, a handle is further installed at one end, far away from the clamping mechanism, of the threaded rod in the radial direction of the threaded rod.
In one embodiment, the workbench is further provided with a mounting hole for fixing the nozzle, the mounting hole is further extended with a channel for the oil outlet pipe of the nozzle to pass through, and the fuel nozzle is convenient to be fixed on the workbench through the embodiment.
The beneficial effects of the utility model reside in that:
(1) The main door core can be detached, the main door core and the nozzle shell are not easy to throw away, the distance between the main door core and the nozzle shell is too large, and the main door core can not collide with surrounding objects and people, and even the main door core falls to the ground.
(2) Thereby rely on the rotatory outside pulling force that produces of screw thread to take out main door core, thereby avoid main door core and shells inner wall to produce the broken part of scraping.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another embodiment of the present invention.
[ concrete symbol description ]:
the device comprises a clamping piece 1, an adjusting mechanism 2, a clamping section 3, a ball head 4, a workbench 5, a joint bearing 6, a handle 7, a support column 8, a first mounting hole 9, a second mounting hole 10 and a channel 11.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The utility model provides a dismounting device of fuel nozzle owner door core, include:
the clamping mechanism comprises a clamping part consisting of at least two clamping pieces 1 separated from each other;
the adjusting mechanism 2 can adjust the opening and closing degree of the clamping part so that the clamping mechanism can clamp or loosen the main door core;
it should be noted that the interior of the main door core is composed of a main lining, a main sealing ring, a limiting sleeve, a main retainer ring, a main door spring and a main door spring, namely, the main door core is clamped in the fuel nozzle, and the main door core and the shell are tightly matched due to the sealing ring, when the main door core is disassembled, only the front end part of the main door spring can be clamped, and then the main door core is pulled out, namely, the clamping piece 1 is contacted with the front end part of the main door spring, so that the clamping operation of the main door core is completed.
Specifically, as shown in fig. 1, the adjusting mechanism 2 has a through hole for the clamping portion to pass through, and the adjusting mechanism 2 can move along the axial direction of the clamping portion, and simultaneously, in the process of moving along the axial direction of the clamping portion, the plurality of clamping pieces 1 are made to approach or separate from each other so as to adjust the opening and closing degree of the clamping portion;
it should be noted that, in the process that the adjusting mechanism 2 moves along the clamping portion, the adjusting mechanism 2 can squeeze the clamping pieces 1 which are separated from each other, so that the clamping pieces 1 which are separated from each other are close to each other, and in the process that the clamping pieces 1 are close to each other, the clamping operation of the main door spring can be completed, and then the main door core can be pulled out.
In one embodiment, as shown in fig. 1, the two clamping pieces 1 are in a semicircular structure, one end of the clamping portion, which is located in the adjusting mechanism 2, is a fixed end, and the two clamping pieces 1 are installed at one side of the fixed end, so that the adjusting mechanism 2 can press the two clamping pieces 1 in the moving process, so that the two clamping pieces approach each other and have a tendency of gradually forming a circle, thereby ensuring that the main door spring can be stably fixed.
Furthermore, as shown in fig. 1, the clamping portion is a plurality of bell mouths formed by the clamping pieces, the two ends of each clamping piece 1 are both extended inwards to form a clamping section 3, each clamping section 3 is of a continuous tooth-shaped structure, and because gaps exist in the main door spring, the clamping sections 3 of the tooth-shaped structures clamp the gaps in the main door spring, so that the resistance between the clamping portion and the main door spring is increased, and the main door spring is prevented from falling off and being damaged in the process of pulling out the main door core.
Specifically, the clamping section 3 is located at the mouth of the horn mouth, so that the main door spring can be clamped conveniently when the clamping part extends into the fuel nozzle.
In one embodiment, the clamping mechanism is in threaded connection with the adjusting mechanism 2, the surface of the clamping mechanism is provided with external threads matched with the inner surface of the adjusting mechanism 2, the adjusting mechanism 2 is in a circular truncated cone structure, and the end with the smaller diameter is also provided with a stress section in a prismatic truncated cone structure;
it should be noted that, as shown in fig. 1, the adjusting mechanism 2 is a circular truncated cone structure, and the end with a smaller diameter is further provided with a stress section (not shown in the figure) which is a prismoid structure, and the clamping mechanism and the adjusting mechanism 2 are connected through a thread, i.e. the stress section which is the prismoid structure is convenient for an operator to use a tool such as a wrench to rotate the adjusting mechanism 2, thereby controlling the direction and distance of the adjusting mechanism 2 moving on the clamping mechanism, thereby controlling the opening and closing degree of the clamping portion, and when the adjusting mechanism 2 is finished, the clamping piece 1 can be fixed through the thread connection structure, and preventing the clamping piece 1 from rebounding back.
It is further explained that in the utility model discloses in, adjustment mechanism 2 of round platform structure is only a preferred embodiment, can also adopt tubular structure if adjustment mechanism 2, and also need not to carry out threaded connection between clamping part and the adjustment mechanism 2, tubular structure's adjustment mechanism 2 is along the in-process of the big end removal of horn mouth, the diameter that only needs to set up adjustment mechanism 2 is greater than the horn mouth tip is less than the diameter of horn mouth big end simultaneously, it is suitable with adjustment mechanism 2's internal diameter regulation as required, can be at the in-process that removes, extrude clamping piece 1.
In one embodiment, as shown in fig. 2, the door frame further comprises a workbench 5, a support column 8 is installed on the workbench 5, a threaded rod is further installed on the support column 8 in a penetrating manner, the threaded rod is connected with the clamping portion, the clamping portion can be in a supporting state through the arranged workbench 5, and meanwhile the arranged threaded rod can be convenient for an operator to generate backward pulling force when screwing the threaded rod, so that the main door core can be stably pulled out. The abrasion of the main door core and the inner wall of the fuel nozzle caused by uneven stress is avoided;
specifically, as shown in fig. 1 and 2, a ball head 4 is arranged at one end of the clamping portion, which is far away from the bell mouth, and a joint bearing 6 connected with the ball head 4 is arranged at one end of the threaded rod, so that backward torsion of the threaded rod can be converted into backward pulling force of the clamp, and meanwhile, lubricating oil or lubricating oil can be dripped into the joint bearing 6 to reduce friction force in the using process.
In one embodiment, as shown in fig. 2, a handle 7 is further installed at one end of the threaded rod away from the clamping portion along the radial direction, so that an operator can hold the handle 7 to rotate the threaded rod conveniently, and time and labor are saved.
In one embodiment, as shown in fig. 2, the workbench 5 is further provided with mounting holes for fixing the nozzle, the mounting holes include three first mounting holes 9 corresponding to bolt holes on the outer edge of the nozzle and a second mounting hole 10 for penetrating other components of the fuel nozzle, and meanwhile, as the nozzle is provided with an oil outlet pipe for discharging oil below besides the shell with the main door core at the upper part, a channel 11 for allowing the oil outlet pipe to pass through extends from the second mounting hole 10, the fuel nozzle is convenient to fix.
In one embodiment, the clamping pieces 1 and the clamping sections 3 are made of copper, the copper metal is soft, so that after the main door core is disassembled, the clamping pieces 1 can be restored to the shape before extrusion in the direction away from each other, and meanwhile, the clamping sections 3 are made of copper metal, so that the surface of the main door core can be prevented from being damaged when the main door core is taken out.
In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Although the invention herein has been described with reference to particular embodiments, it is to be understood that these embodiments are merely illustrative of the principles and applications of the present invention. It is therefore to be understood that numerous modifications may be made to the illustrative embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that features from different dependent claims and herein may be combined in ways other than those described in the original claims. It is also to be understood that features described in connection with individual embodiments may be used in other embodiments.
Claims (8)
1. A fuel injector main door core dismounting device is characterized by comprising:
the clamping mechanism comprises a clamping part consisting of at least two clamping pieces which are separated from each other;
the adjusting mechanism can adjust the opening and closing degree of the clamping part so as to clamp or loosen the main door core by the clamping mechanism;
the adjusting mechanism is provided with a through hole for the clamping part to penetrate through, can move along the axial direction of the clamping part, and enables the clamping pieces to approach or separate from each other in the moving process so as to adjust the opening and closing degree of the clamping part;
the clamping part is by a plurality of the horn mouth that the clamping piece constitutes, the clamping piece is located the both sides of horn mouth main aspects are all followed the axial direction of horn mouth inwards extends there is the centre gripping section, the centre gripping section is continuous dentate structure.
2. The fuel injector main door core dismounting device as claimed in claim 1, wherein the clamping mechanism further comprises a fixed end, and two semicircular clamping pieces are arranged on the fixed end.
3. A fuel injector main door core removal device as set forth in claim 1 wherein said clamping mechanism is threadably connected to said adjustment mechanism, and wherein a surface of said clamping mechanism has external threads for mating with an internal surface of said adjustment mechanism.
4. The fuel nozzle main door core dismounting device according to claim 3, wherein the adjusting mechanism is in a circular truncated cone structure, and a stress section in a truncated pyramid structure is further arranged at the end with the smaller diameter.
5. The dismounting device of the main door core of the fuel nozzle as claimed in claim 1, further comprising a workbench, wherein a support column is mounted on the workbench, a threaded rod is further mounted on the support column in a penetrating manner, and the threaded rod is connected with the clamping mechanism.
6. A fuel nozzle main door core dismounting device according to claim 5, characterized in that a ball head is arranged at one end of the clamping mechanism close to the supporting column, and a joint bearing connected with the ball head is arranged at one end of the threaded rod.
7. A fuel injector main door core removal device as claimed in claim 5 or 6, wherein a handle is also mounted radially on the end of the threaded rod remote from the clamping mechanism.
8. A fuel nozzle main door core dismounting device according to claim 5, characterized in that the workbench is further provided with a mounting hole for fixing the nozzle, and the mounting hole is further extended with a channel for passing through an oil outlet pipe of the nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222287119.4U CN218576057U (en) | 2022-08-29 | 2022-08-29 | Dismounting device of fuel nozzle main door core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222287119.4U CN218576057U (en) | 2022-08-29 | 2022-08-29 | Dismounting device of fuel nozzle main door core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218576057U true CN218576057U (en) | 2023-03-07 |
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ID=85363359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222287119.4U Active CN218576057U (en) | 2022-08-29 | 2022-08-29 | Dismounting device of fuel nozzle main door core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218576057U (en) |
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2022
- 2022-08-29 CN CN202222287119.4U patent/CN218576057U/en active Active
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