CN217097592U - Dismounting device of vice door core of fuel nozzle - Google Patents
Dismounting device of vice door core of fuel nozzle Download PDFInfo
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- CN217097592U CN217097592U CN202220866261.1U CN202220866261U CN217097592U CN 217097592 U CN217097592 U CN 217097592U CN 202220866261 U CN202220866261 U CN 202220866261U CN 217097592 U CN217097592 U CN 217097592U
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- door core
- wall
- sleeve
- dismounting
- fuel nozzle
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Abstract
The utility model relates to an aeroengine fuel nozzle flow restores the field, concretely relates to dismounting device of vice door core of fuel nozzle. The utility model provides a dismounting device of vice door core of fuel nozzle, includes the dismounting rod, the screens device has the through-hole, be equipped with the bar groove on the through-hole inner wall, the bar groove is used for injecing dismounting rod home range. Through setting up the screens device that has the through-hole to set up the bar groove at this through-hole inner wall, inject the dismounting rod home range with crossing the bar groove, avoid vice door core to be thrown away after drawing out from nozzle shell is inside, improve the operation control to vice door core dismantlement. Further through setting up the sleeve, the direction of advance of control dismantlement pole when stretching into the inside vice door core mounting hole inner wall promptly of nozzle shell is avoided dismantling the pole and is caused the damage to vice door core mounting hole inner wall or other precision devices that set up on the vice door core mounting hole inner wall, guarantees that the safety of vice door core is dismantled is controllable.
Description
Technical Field
The utility model relates to an aeroengine fuel nozzle flow restores the field, concretely relates to dismounting device of vice door core of fuel nozzle.
Background
A fuel nozzle in an aircraft engine is a key component of an engine combustion chamber, fuel is finely scattered into the combustion chamber through flow channel restriction and is mixed with air, and the fuel nozzle is combusted, expanded and does work to push an airplane to lift off.
The flow is used as one of key checking items of the fuel nozzle, the unqualified flow corresponding to the flow is also the fault with the highest occurrence frequency of the fuel nozzle, the fuel nozzle is scrapped and cannot be used continuously when the flow exceeds the upper limit of the specified standard range, the carbon deposit in the fuel nozzle is indicated when the flow is lower than the lower limit of the specified standard range, the carbon deposit in the fuel nozzle is usually cleaned by putting the fuel nozzle into an ultrasonic cleaner, and the deep repair is needed when the effect of the ultrasonic cleaner is not ideal.
The flow deep repair comprises large flow repair with the flow exceeding the upper limit of a specified standard range and small flow repair with the flow lower than the lower limit of the specified standard range, wherein the small flow repair is influenced by a sub-door core of a part inside the nozzle, when the small flow repair is carried out, the sub-door core needs to be taken out, and the sub-door core is internally composed of a sub-end sleeve, a sub-door spring, a clamping ring, an adjusting ring, a sub-door plug and a sub-door body. Because the auxiliary door core is clamped in the nozzle, the auxiliary door core and the nozzle are matched tightly, and the auxiliary door core is screwed into the auxiliary end sleeve by a device and then pulled out by force when the auxiliary door core is disassembled.
The existing device for detaching the auxiliary door core is too simple and only has a simple detaching rod, so that the auxiliary door core is easily thrown off from the detaching rod under the action of inertia in the process of detaching the auxiliary door core from the nozzle shell by utilizing the detaching rod, and the auxiliary door core is damaged by hitting objects, people and even falling on the ground.
SUMMERY OF THE UTILITY MODEL
The utility model discloses when aiming at solving the vice door core in the dismantlement fuel nozzle that exists among the prior art at least, dismounting device is simple and crude, makes the vice door core of dismantlement throw away the problem that the distance is too big to hit object, people around, even drop to ground with the nozzle casing easily, provides a dismounting device of the vice door core of fuel nozzle now.
The utility model discloses a following technical scheme realizes: the utility model provides a dismounting device of vice door core of fuel nozzle, includes the dismounting rod, the screens device has the through-hole, be equipped with the bar groove on the through-hole inner wall, the bar groove is used for injecing dismounting rod home range.
Preferably, the dismounting rod is provided with a dismounting rod boss, and the strip-shaped groove is used for limiting the moving range of the dismounting rod boss.
Preferably, the screens device includes main part, fixed part, the main part with the fixed part links to each other, the main part has the through-hole, be equipped with the bar groove on the through-hole inner wall.
Preferably, the device also comprises a sleeve, wherein the dismounting rod is provided with a dismounting rod external thread, the inner wall of the sleeve is provided with a sleeve internal thread, and the outer wall of the sleeve is provided with a sleeve outer wall boss;
the external thread of the dismounting rod is matched with the internal thread of the sleeve, and the strip-shaped groove is used for limiting the moving range of the boss on the outer wall of the sleeve.
Preferably, the screens device includes main part, fixed part, the main part with the fixed part links to each other, the main part has the through-hole, be equipped with the bar groove on the through-hole inner wall.
Preferably, the disassembling rod is a threaded screw rod, a handle is arranged at one end of the threaded screw rod, the handle is perpendicular to the axis of the threaded screw rod, and the threaded screw rod is connected with the middle section of the handle.
Preferably, the threaded screw comprises an auxiliary door core mounting section and a sleeve mounting section, the outer diameter length of the auxiliary door core mounting section is r1, r1 is more than or equal to 3.4mm and less than or equal to 3.6mm, the outer diameter length of the sleeve mounting section is r2, and r1 is more than r2 and less than 8 mm.
Preferably, the sleeve outer wall is equipped with sleeve outer wall left boss, sleeve outer wall right boss, it leads to the groove to be equipped with left bar on the screens device, right bar leads to the groove, sleeve outer wall left side boss, sleeve outer wall right boss can correspond respectively and place left side bar leads to the inslot to groove, right bar.
Preferably, the diameter of the sleeve is m, and m is more than 8mm and less than or equal to 10 mm.
Preferably, the strip-shaped grooves are distributed along the axis where the through holes are located, the length of the strip-shaped grooves along the direction of the axis where the through holes are located is d, and d is more than or equal to 20mm and less than or equal to 22 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
1. through setting up the screens device that has the through-hole to set up the bar groove at this through-hole inner wall, inject the dismounting rod home range with crossing the bar groove, avoid vice door core to be thrown away after drawing out from nozzle shell is inside, improve the operation control to vice door core dismantlement.
2. Through setting up the sleeve, the direction of advance of control dismantlement pole when stretching into the inside vice door core mounting hole inner wall promptly of nozzle shell is avoided dismantling the pole and is caused the damage to vice door core mounting hole inner wall or other precision devices that set up on the vice door core mounting hole inner wall, guarantees that the safety of vice door core dismantlement is controllable.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 is a schematic structural view of a dismounting device for a fuel nozzle sub-door core according to a first embodiment of the present invention;
fig. 2 is a schematic view showing a state of use of a dismounting device for a fuel nozzle sub-door core according to a first embodiment of the present invention;
fig. 3 is a schematic structural view of a locking device according to a first embodiment of the present invention;
fig. 4 is a schematic structural view of a dismounting device for a fuel nozzle sub-door core according to a second embodiment of the present invention;
FIG. 5 is a schematic view of the second embodiment of the present invention with the sleeve mounted on the dismounting rod;
fig. 6 is a schematic view of a second embodiment of the present invention in use.
Reference numbers and corresponding part names in the figures:
1-dismounting rod, 11-auxiliary door core mounting section, 12-sleeve mounting section, 13-dismounting rod boss, 14-handle, 2-clamping device, 21-main body part, 211-through hole, 2111-strip groove, 21111-left strip through groove, 21112-right strip through groove, 22-fixing part, 3-sleeve, 31-sleeve outer wall boss, 311-sleeve outer wall left boss and 312-sleeve outer wall right boss.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and the detailed description.
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and the terms are only for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that, unless otherwise explicitly specified or limited, the terms "disposed," "opened," "mounted," "connected," and "connected" are to be construed broadly, e.g., as either a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention is explained in detail below with reference to the figures and with reference to exemplary embodiments:
example 1
As shown in fig. 1, the dismounting device for the fuel nozzle auxiliary door core comprises a dismounting rod 1 and a clamping device 2, wherein the clamping device 2 is provided with a through hole 211, a strip-shaped groove 2111 is formed in the inner wall of the through hole 211, and the strip-shaped groove 2111 is used for limiting the moving range of the dismounting rod 1.
It needs to be understood that, the mode of taking vice door core dismantlement to go on degree of depth clearance usually is restoreed to engine fuel nozzle low discharge, vice door core utilizes article joints such as rubber ring at vice door core mounting hole inner wall, vice door core surface has vice pot head, be equipped with the spiral line in this vice pot head, the tradition mode is inside stretching into vice door core mounting hole with the threaded screw, direct outer pulling after the screw thread that utilizes the threaded screw and the vice pot head of vice door core, because vice door core is at the downthehole wall mounting of vice door core inseparable, outer pulling is executed with great power, this power makes when vice door core breaks away from vice door core mounting hole inner wall, vice door core receives this power and inertial influence to throw away from easily, fall wherever after throwing away and can all lead to the fact the destruction to vice door core self structure. And through setting up screens device 2, after having limited the release lever 1 home range, the inertia of external pulling can be prevented, can guarantee that the vice door core can not thrown away after taking off.
Specifically, the dismounting rod 1 is provided with a dismounting rod boss 13, and the strip-shaped groove 2111 is used for limiting the moving range of the dismounting rod boss 13.
It should be understood that the blocking device 2 has a through hole 211, the dismounting rod 1 passes through the through hole 211, a strip-shaped groove 2111 is arranged on the inner wall of the through hole 211 along the axial direction of the through hole, the dismounting rod 1 is provided with a dismounting rod boss 13, the dismounting rod boss 13 can move in the strip-shaped groove 2111, and the length of the strip-shaped groove 2111 is the moving range of the dismounting rod 1.
As shown in fig. 3, specifically, the locking device 2 includes a main body 21 and a fixing portion 22, the main body 21 is connected to the fixing portion 22, the main body 21 has a through hole 211, and a strip-shaped groove 2111 is provided on an inner wall of the through hole 211.
It should be understood that the fixing portion 22 is installed on the outer wall of the oil furnace, and corresponds to a base of the main body portion 21 of the clamping device 2, and the fixing portion 22 has a cylindrical boss, and the cylindrical boss can be matched with a corresponding through hole arranged on the outer wall of the oil furnace, and the clamping device 2 is installed by penetrating the cylindrical boss through the through hole. Fig. 2 is a schematic view showing the state that the blocking device 2 is installed on the outer wall of the oil furnace.
Example 2
As shown in fig. 5, the dismounting device for the fuel nozzle auxiliary door core comprises a dismounting rod 1 and a clamping device 2, wherein the clamping device 2 is provided with a through hole 211, a strip-shaped groove 2111 is formed in the inner wall of the through hole 211, the strip-shaped groove 2111 is used for limiting the moving range of the dismounting rod 1, the dismounting device further comprises a sleeve 3, the dismounting rod 1 is provided with a dismounting rod external thread, the inner wall of the sleeve 3 is provided with a sleeve internal thread, and the outer wall of the sleeve 3 is provided with a sleeve outer wall boss 31;
the external thread of the dismounting rod is matched with the internal thread of the sleeve, and the strip-shaped groove 2111 is used for limiting the moving range of the boss 31 on the outer wall of the sleeve.
It should be understood that, after the dismounting rod 1 extends into the inner wall of the auxiliary door core mounting hole, the dismounting rod 1 is difficult to be controlled to move along a certain specific direction by a person, which easily causes the dismounting rod 1 to scratch the inner wall of the auxiliary door core mounting hole or damage other precision devices on the inner wall of the furnace, in view of this, the sleeve 3 is added, as shown in fig. 4, the inner wall of the sleeve 3 is provided with an inner sleeve thread 31, the dismounting rod 1 is provided with an outer dismounting rod thread 11, the outer dismounting rod thread 11 is matched with the inner sleeve thread 31, the dismounting rod 1 is screwed into the sleeve 3, and the sleeve 3 can fix the advancing direction of the dismounting rod 1, so that the dismounting rod 1 does not deviate.
Specifically, the clamping device 2 includes a main body portion 21 and a fixing portion 22, the main body portion 21 is connected to the fixing portion 22, the main body portion 21 has a through hole 211, and a strip-shaped groove 2111 is formed in the inner wall of the through hole 211.
Specifically, the dismounting rod 1 is a threaded screw, a handle 14 is arranged at one end of the threaded screw, the handle 14 is perpendicular to the axis of the threaded screw, and the threaded screw is connected with the middle section of the handle 14.
It will be appreciated that the handle 14 makes it easier and more convenient to screw in and pull out the dismounting rod 1.
Specifically, the threaded screw comprises an auxiliary door core mounting section 11 and a sleeve mounting section 12, the outer diameter length of the auxiliary door core mounting section 11 is r1, r1 is not less than 3.4mm and not more than 3.6mm, the outer diameter length of the sleeve mounting section 12 is r2, and r1 is less than r2 and is less than 8 mm.
It should be understood that the surface of the auxiliary door core is provided with an auxiliary end sleeve, the auxiliary end sleeve is internally provided with spiral lines, when the screw thread of the threaded screw is actually used for being clamped with the screw thread in the auxiliary end sleeve of the auxiliary door core and then directly pulled outwards, the size of the screw thread in the auxiliary end sleeve is considered, the outer diameter of the corresponding threaded screw is within the range of about 0.1mm from 3.5mm, the section of the threaded screw for clamping the auxiliary end sleeve is called as an auxiliary door core mounting section 11, because the threaded screw cannot be too thin, otherwise, the whole body is easy to break, the auxiliary door core mounting section 11 only occupies a small part of the threaded screw, because the auxiliary door core is arranged on the inner wall of the auxiliary door core mounting hole, the hole wall has the hole diameter of 8mm, and in order to ensure that the threaded screw can enter the hole, the outer diameter of the rest section of the threaded screw is required to be less than 8 mm.
Specifically, the outer wall of the sleeve 3 is provided with a left sleeve outer wall boss 311 and a right sleeve outer wall boss 312, the clamping device 2 is provided with a left strip-shaped through groove 21111 and a right strip-shaped through groove 21112, and the left sleeve outer wall boss 311 and the right sleeve outer wall boss 312 can be respectively and correspondingly placed in the left strip-shaped through groove 21111 and the right strip-shaped through groove 21112.
Specifically, the diameter of the sleeve 3 is m, and m is more than 8mm and less than or equal to 10 mm.
It should be understood that the sleeve 3 does not extend into the interior of the sub door core mounting hole, and only the dismounting rod 1 extends into the interior of the sub door core mounting hole, thereby ensuring that the diameter of the sleeve 3 is larger than that of the wall of the sub door core mounting hole.
Specifically, the strip-shaped grooves 2111 are distributed along the axis of the through hole 211, the length of the strip-shaped grooves along the axis of the through hole is d, and d is greater than or equal to 20mm and less than or equal to 22 mm.
It will be appreciated that the secondary door core is typically located 20mm inside the mounting hole of the secondary door core, where the strip 2111 ensures the range of movement of the head of the dismounting rod 1 inside the mounting hole of the secondary door core.
As shown in fig. 6, in a specific embodiment, the dismounting device for the fuel nozzle secondary door core comprises a dismounting rod 1, a clamping device 2 and a sleeve 3, wherein the dismounting rod 1 is a threaded screw, a handle 14 is arranged at one end of the threaded screw, the handle 14 is perpendicular to the axis of the threaded screw, the threaded screw is connected with the middle section of the handle 14, the sleeve 3 is sleeved outside the dismounting rod 1, an inner sleeve thread 31 matched with the thread of the threaded screw is arranged on the inner wall of the sleeve 3, the sleeve 3 is arranged at the middle rear section of the dismounting rod 1, 2 sleeve outer wall bosses 31, namely a sleeve outer wall left boss 311 and a sleeve outer wall right boss 312, are arranged on the inner wall of the sleeve 3, the clamping device 2 comprises a main body part 21 and a fixing part 22, the main body part 21 is connected with the fixing part 22, the main body part 21 is provided with a through hole 211, 2 strip-shaped grooves 2111 are arranged on the inner wall of the through hole 211, and are respectively a left strip-shaped through groove 21111, A right strip-shaped through groove 21112, a sleeve outer wall left boss 311 and a sleeve outer wall right boss 312 are respectively and correspondingly placed in the left strip-shaped through groove 21111 and the right strip-shaped through groove 21112.
During operation, the fixing portion 22 is installed on the outer wall of the oil furnace, the fixing portion 22 is provided with a cylindrical boss, a corresponding through hole is formed in the outer wall of the oil furnace through the cylindrical boss, and the cylindrical boss penetrates through the through hole to realize installation of the clamping device 2, as shown in fig. 6, the clamping device 2 is a schematic view of a state where the clamping device 2 is installed on the outer wall of the oil furnace; at this moment, the through hole 211 of the main body part 21 is aligned with the auxiliary door core mounting hole, the dismounting rod 1 is pushed into the auxiliary door core mounting hole by the handle 14, the boss 31 on the outer wall of the sleeve slides in the strip-shaped groove 2111 until the dismounting rod 1 contacts with the auxiliary door core in the inner wall of the auxiliary door core mounting hole, the dismounting rod 1 is rotated, the outer surface thread of the dismounting rod 1 is clamped with the thread in the auxiliary end sleeve of the auxiliary door core, then the handle 14 is held by hand forcefully and pulled outwards until the boss 31 on the outer wall of the sleeve 3 abuts against the tail end of the strip-shaped groove 2111, the outward pulling is stopped, and the auxiliary door core is taken down.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. The utility model provides a dismounting device of vice door core of fuel nozzle, its characterized in that, includes dismounting rod (1), screens device (2) have through-hole (211), be equipped with bar groove (2111) on through-hole (211) inner wall, bar groove (2111) are used for injecing dismounting rod (1) home range.
2. A fuel injection nozzle sub-door core removing device according to claim 1, wherein the removing rod (1) is provided with a removing rod boss (13), and the strip-shaped groove (2111) is used for limiting the moving range of the removing rod boss (13).
3. The fuel nozzle secondary door core dismounting device is characterized in that the clamping device (2) comprises a main body part (21) and a fixing part (22), the main body part (21) is connected with the fixing part (22), the main body part (21) is provided with a through hole (211), and the inner wall of the through hole (211) is provided with a strip-shaped groove (2111).
4. The dismounting device of the auxiliary door core of the fuel nozzle is characterized by further comprising a sleeve (3), wherein the dismounting rod (1) is provided with a dismounting rod external thread, the inner wall of the sleeve (3) is provided with a sleeve internal thread, and the outer wall of the sleeve (3) is provided with a sleeve outer wall boss (31);
the external thread of the dismounting rod is matched with the internal thread of the sleeve, and the strip-shaped groove (2111) is used for limiting the moving range of the boss (31) on the outer wall of the sleeve.
5. The fuel nozzle secondary door core dismounting device is characterized in that the clamping device (2) comprises a main body part (21) and a fixing part (22), the main body part (21) is connected with the fixing part (22), the main body part (21) is provided with a through hole (211), and the inner wall of the through hole (211) is provided with a strip-shaped groove (2111).
6. A fuel nozzle secondary door core dismounting device according to claim 4, characterized in that the dismounting rod (1) is a threaded screw, a handle (14) is arranged at one end of the threaded screw, the handle (14) is perpendicular to the axis of the threaded screw, and the threaded screw is connected with the middle position of the handle (14).
7. The fuel nozzle auxiliary door core dismounting device is characterized in that the threaded screw comprises an auxiliary door core mounting section (11) and a sleeve mounting section (12), the outer diameter length of the auxiliary door core mounting section (11) is r1, r1 is more than or equal to 3.6mm, the outer diameter length of the sleeve mounting section (12) is r2, and r1 is more than or equal to r2 and less than 8 mm.
8. The dismounting device of the fuel nozzle auxiliary door core is characterized in that a sleeve outer wall left boss (311) and a sleeve outer wall right boss (312) are arranged on the outer wall of the sleeve (3), a left strip-shaped through groove (21111) and a right strip-shaped through groove (21112) are arranged on the clamping device (2), and the sleeve outer wall left boss (311) and the sleeve outer wall right boss (312) can be respectively and correspondingly placed in the left strip-shaped through groove (21111) and the right strip-shaped through groove (21112).
9. The dismounting device of the fuel nozzle auxiliary door core is characterized in that the diameter of the sleeve (3) is m, and m is more than 8mm and less than or equal to 10 mm.
10. The dismounting device of the fuel nozzle auxiliary door core is characterized in that the strip-shaped grooves (2111) are distributed along the axis where the through hole (211) is located, the length of the strip-shaped grooves along the axis where the through hole is located is d, and d is more than or equal to 20mm and less than or equal to 22 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220866261.1U CN217097592U (en) | 2022-04-15 | 2022-04-15 | Dismounting device of vice door core of fuel nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220866261.1U CN217097592U (en) | 2022-04-15 | 2022-04-15 | Dismounting device of vice door core of fuel nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217097592U true CN217097592U (en) | 2022-08-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220866261.1U Active CN217097592U (en) | 2022-04-15 | 2022-04-15 | Dismounting device of vice door core of fuel nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217097592U (en) |
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- 2022-04-15 CN CN202220866261.1U patent/CN217097592U/en active Active
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