CN112847246A - Device for assembling thrust augmentation fuel distributor film stop ring of aircraft engine - Google Patents
Device for assembling thrust augmentation fuel distributor film stop ring of aircraft engine Download PDFInfo
- Publication number
- CN112847246A CN112847246A CN202110008239.3A CN202110008239A CN112847246A CN 112847246 A CN112847246 A CN 112847246A CN 202110008239 A CN202110008239 A CN 202110008239A CN 112847246 A CN112847246 A CN 112847246A
- Authority
- CN
- China
- Prior art keywords
- pressure head
- stop ring
- pull rod
- depression bar
- fixed seat
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 16
- 230000003416 augmentation Effects 0.000 title claims description 8
- 239000000295 fuel oil Substances 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 abstract description 30
- 238000000034 method Methods 0.000 abstract description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention relates to the technical field of assembly of an aeroengine boosting fuel distributor, in particular to a device for assembling a film stop ring of the aeroengine boosting fuel distributor. The screw-in pressing replaces the bare-handed pressing of the traditional mandrel, the fixed seat is fastened with the shell threads in a matched mode, the whole assembling process is stable and smooth, the threaded pressing rod is applied, the traditional manual pressing is converted into light torque, and the problem that manual direct pressing is difficult is solved. Through the application of the device, the assembly power of each original group of the stop rings at one time is improved from less than 30% to 100%, the damage of the extension shell, the sealing ring and the stop rings is avoided, the rejection rate is reduced to 0, and the production operation efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of assembly of an aeroengine boosting fuel distributor, in particular to a device for assembling a film stop ring of the aeroengine boosting fuel distributor.
Background
The boosting fuel oil distributor is a control accessory widely used on an engine with a boosting turbofan, and is called 'adding' for short. Each addendum component has three groups of film stop rings, the film stop rings are arranged at the bottom of the film component to limit the film component, the film component is generally assembled by adopting a traditional spindle pressing mode by hands, and the structure of a traditional spindle pressing tool is shown in figure 1.
During the assembly process of the film stop ring, the conventional mandrel is adopted for pressing and assembling, so that the problems that the stop ring is provided with a sealing ring, the tightness is high and the resistance is high when the stop ring is matched with a shell, the pressing is difficult by bare hands, the assembling power is low, the quality risk of an assembled product is high and the like are caused.
The length-diameter ratio of the split film stop ring is about 16, the split film stop ring belongs to typical thin plate parts, the split film stop ring is assembled by pressing with a traditional mandrel by hands, and the thin plate parts are unstable in verticality and easy to deflect when moving in the vertical direction under small acting surface and large pressure, and the success rate of one-time pressing is about 30%. According to incomplete measurement, the pressure required by pressing each time is about 500-600N, the pressure is close to the equivalent gravity of the weight of a common adult, the perpendicularity of the stop ring is difficult to guarantee in the manual pressing process, the stop ring cannot be pressed into the shell, or the shell and the sealing ring are damaged after the stop ring is pressed askew, so that the product is damaged, once the stop ring is pressed askew, a special puller is required to be used for pulling out the stop ring, the rubber ring and the shell are checked, manual pressing and assembling are repeatedly carried out, time and labor are wasted for three groups of stop rings, the assembling quality of the product is influenced, and finally the engine is failed.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the device for assembling the membrane stop ring of the thrust augmentation fuel distributor of the aircraft engine is convenient to operate and can effectively improve the assembly success rate.
The technical scheme adopted by the invention for solving the technical problems is as follows: the device for assembling the membrane stop ring of the boosting fuel distributor of the aircraft engine comprises a pressure rod and a fixed seat, wherein the lower end of the pressure rod is provided with a pressure head, the lower end of the fixed seat is provided with a positioning boss, and the outer circular surface of the positioning boss is provided with an external thread for connecting a boosting fuel distributor shell; the middle part of the fixed seat is provided with a thread through hole which is coaxially arranged with the positioning boss, and the thread through hole is in threaded connection with the rod body of the pressure rod.
Furthermore, the upper end of the pressing rod is connected with a first pull rod, the upper end of the pressing rod is provided with a through hole arranged along the radial direction of the pressing rod, the first pull rod penetrates through the through hole at the upper end of the pressing rod, and two ends of the first pull rod extend outwards relative to the through hole.
Furthermore, the upper end of the fixed seat is connected with a second pull rod, the second pull rod is perpendicular to the axis of the positioning boss and is arranged into two pieces, and the second pull rods are symmetrically connected to two sides of the fixed seat; the tip of second pull rod is provided with the external screw thread, and the tip of second pull rod forms threaded connection with the screw hole on the fixing base.
Further, the pressure head forms T shape with the lower extreme of depression bar and is connected, and the pressure head forms annular bulge structure for the lower extreme pole body of depression bar, has cup jointed the cushion on the pressure head, and the up end of cushion is provided with step-like recess, and the upper end diameter of recess is less than the lower extreme diameter of recess, and the cushion is hung through step-like recess and is established on the pressure head, and the lower terminal surface of pressure head sets up to spherical face.
Further, the outer circular surface of the pressure head is provided with threads, and the inner wall of the upper end of the groove is provided with internal threads matched with the threads on the pressure head.
Furthermore, the cushion block is made of copper.
The invention has the beneficial effects that: when the fuel oil distributor is implemented, the fixed seat is fixedly connected with the stress application fuel oil distributor shell, and a reverse acting force is provided by pressing down the stop ring; then, the assembly of the stop ring can be realized by rotating the pressing rod. Compared with the traditional mandrel pressing tool, the invention has the following advantages:
(1) original mandrel is bare-handed to press, directly through human weight direct action on the retaining ring, the manpower is conducted on the mandrel through the palm, realizes the installation to the retaining ring, and new installation utilizes the precession effect of screw depression bar, converts the direct effort of traditional mandrel through the moment of torsion of depression bar to design into the bulb with depression bar point portion, realize the laborsaving of rotation process.
(2) The assembly is pressed to the manpower bare-handed of traditional mandrel, generally need hold the product casing with the hand, be difficult to guarantee that the check ring is not pressed askew, lead to casing and rubber ring to damage, many surplus objects such as burr appear, the screw thread fixing base of new design, fix whole device on dividing the casing additional, guarantee the stationarity at the depression bar precession in-process, realize accurate location, and fully consider the length of screw thread base, guarantee the check ring under free state, when the screw thread mount pad is fixed on the casing, with check ring upper surface contactless, avoid causing the damage to the spare part.
(3) Original mandrel assembly, under the big pressure effect, because the instability of whole process leads to the mandrel very easily to harm the snap ring, damage surface production burr, newly-designed copper cushion utilizes copper metal's high ductility characteristics, guarantees that the depression bar keeps motionless at screw precession in-process cushion, closely laminates with the snap ring surface, realizes pressing the even atress of process.
(4) The first pull rod is designed to be used for screwing the pressure rod, so that manual operation can be facilitated, and labor is saved in the rotating process.
(5) The second pull rod of design for whole device's installation is fixed and is taken out, realizes high-efficient operation, improves production efficiency.
(6) Practice shows that the success rate of one-time pressing of the split film stop ring can be improved from less than 30% to 100%.
Drawings
Fig. 1 is a front view of a conventional mandrel press.
Fig. 2 is a schematic view of the assembled structure of the present invention.
The parts in the figures are labeled: the press rod 1, the press head 11, the first pull rod 2, the second pull rod 3, the fixing seat 4, the positioning boss 41, the cushion block 5 and the groove 51.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 2, the fuel oil distributor comprises a pressure rod 1 and a fixed seat 4, wherein a pressure head 11 is arranged at the lower end of the pressure rod 1, a positioning boss 41 is arranged at the lower end of the fixed seat 4, and an external thread used for connecting a stress application fuel oil distributor shell is arranged on the outer circular surface of the positioning boss 41; the middle part of the fixed seat 4 is provided with a thread through hole which is coaxially arranged with the positioning boss 41, and the thread through hole is in threaded connection with the rod body of the pressure rod 1. When in implementation, the fixed seat 4 is fixedly connected with the stress application fuel distributor shell, and a reverse acting force is provided by pressing down the stop ring; then, the assembly of the stop ring can be realized by rotating the pressure lever 1. According to the invention, the traditional manual pressing assembly mode is replaced by screw thread precession assembly, so that the labor burden can be greatly reduced, the production efficiency is improved, the product assembly quality is improved, and finally the engine fault is reduced.
For further laborsaving, the upper end of depression bar 1 is connected with first pull rod 2, pulls first pull rod 2 through the manpower and realizes the precession of depression bar 1. For convenient processing and assembly, the assembly structure of first lever 2 is: the upper end of the pressure lever 1 is provided with a through hole arranged along the radial direction of the pressure lever, the first pull rod 2 penetrates through the through hole at the upper end of the pressure lever 1, and two ends of the first pull rod 2 extend outwards relative to the through hole. During the implementation, through the rotation effect of first pull rod 2, for the rotatory moment of torsion that provides of depression bar 1, convert the direct effort of traditional mandrel into rotatory moment of torsion, greatly reduced manpower burden.
For easy to assemble and dismantle fixing base 4, the upper end of fixing base 4 is connected with second pull rod 3, pulls first pull rod 3 through the manpower and realizes the precession and take out of fixing base 4. For convenient processing and assembly, the assembly structure of the second lever 3 is: the second pull rod 3 is arranged perpendicular to the axis of the positioning boss 41, the two second pull rods 3 are arranged, and the second pull rods 3 are symmetrically connected to two sides of the fixed seat 4; the tip of second pull rod 3 is provided with the external screw thread, and the tip of second pull rod 3 forms threaded connection with the screw hole on the fixing base 4. Further preferred mode is for implementing first pull rod 2 and the combination of second pull rod 3, designs two kinds of rods of playing the role, and first pull rod 2 and the cooperation of depression bar 1 top through-hole provide the moment of torsion that depression bar 1 pushed down, and second pull rod 3 provides the moment of torsion that whole device installation and dismantlement, alleviates manpower burden.
For further laborsaving, pressure head 11 forms T shape with the lower extreme of depression bar 1 and is connected, and pressure head 11 forms annular protruding structure for the lower extreme pole body of depression bar 1, has cup jointed cushion 5 on the pressure head 11, and the up end of cushion 5 is provided with step-like recess 51, and the upper end diameter of recess 51 is less than the lower extreme diameter of recess 51, and cushion 5 hangs through step-like recess 51 and establishes on pressure head 11, and the lower terminal surface of pressure head 11 sets up to spherical face. After the cushion block 5 is arranged at the bottom of the pressure rod 1, the pressure rod 1 and the cushion block 5 can move freely, so that the pressure rod 1 is not damaged in the screwing process, the cushion block 5 is also prevented from falling, the lower end surface of the pressure head 11 adopts a spherical surface design, the moment is subjected to self-adaptive adjustment, the uniform stress in the pressing process is realized, and the labor saving in the rotating process is realized.
For convenient assembly, the outer circular surface of the pressure head 11 is provided with threads, and the inner wall of the upper end of the groove 51 is provided with internal threads matched with the threads on the pressure head 11. In implementation, after the cushion block 5 is screwed in through the threads, the threads at the upper end of the groove 51 of the cushion block 5 are separated from the pressure head 11, and the cushion block 5 can be automatically hung on the pressure head 11. The cushion block 5 is preferably made of copper, and the cushion block 5 is kept still in the screwing process of the pressure bar 1 and is tightly attached to the surface of the stop ring by utilizing the high ductility characteristic of copper metal, so that uniform stress in the pressing process is realized.
By using the on-site pressing device disclosed by the invention, the success rate of one-time pressing in the assembly of the split film stop ring can be increased from less than 30% to 100%, the stop ring is pressed by utilizing the screwing-in of the threads, the smooth pressing of the stop ring is ensured, and the generation of redundant objects such as burrs and the like is avoided, so that the damage of the split shell, the sealing ring and the stop ring is avoided, the rejection rate is reduced to 0, and the production operation efficiency is greatly improved.
Claims (6)
1. A device for assembly of afterburning fuel distributor film check ring of aeroengine, including depression bar (1), the lower extreme of depression bar (1) is provided with pressure head (11), its characterized in that: the fuel oil distributor also comprises a fixed seat (4), wherein the lower end of the fixed seat (4) is provided with a positioning boss (41), and the outer circular surface of the positioning boss (41) is provided with an external thread used for connecting a stress application fuel oil distributor shell; the middle part of the fixed seat (4) is provided with a thread through hole which is coaxially arranged with the positioning boss (41), and the thread through hole is in threaded connection with the rod body of the pressure rod (1).
2. The device for assembly of an aircraft engine thrust augmentation fuel dispenser membrane stop ring of claim 1, wherein: the upper end of depression bar (1) is connected with first pull rod (2), and the upper end of depression bar (1) has along its radial through-hole that sets up, and first pull rod (2) pass from the upper end through-hole of depression bar (1), and the both ends of first pull rod (2) are for the overhanging setting of this through-hole.
3. The device for assembly of an aircraft engine thrust augmentation fuel dispenser membrane stop ring of claim 1, wherein: the upper end of the fixed seat (4) is connected with a second pull rod (3), the second pull rod (3) is perpendicular to the axis of the positioning boss (41), the two second pull rods (3) are arranged, and the second pull rods (3) are symmetrically connected to two sides of the fixed seat (4); the end part of the second pull rod (3) is provided with an external thread, and the end part of the second pull rod (3) is in threaded connection with a threaded hole in the fixed seat (4).
4. The device for assembling a membrane stop ring for an aeroengine thrust augmentation fuel distributor as claimed in any one of claims 1 to 3, wherein: pressure head (11) form T shape with the lower extreme of depression bar (1) and are connected, pressure head (11) form annular protruding structure for the lower extreme pole body of depression bar (1), cup joint cushion (5) on pressure head (11), the up end of cushion (5) is provided with step form recess (51), the upper end diameter of recess (51) is less than the lower extreme diameter of recess (51), hang through step form recess (51) and establish on pressure head (11) cushion (5), the lower terminal surface of pressure head (11) sets up to spherical.
5. The device for assembly of an aircraft engine thrust augmentation fuel distributor membrane stop ring as defined in claim 4, wherein: the outer circular surface of the pressure head (11) is provided with threads, and the inner wall of the upper end of the groove (51) is provided with internal threads matched with the threads on the pressure head (11).
6. The device for assembly of an aircraft engine thrust augmentation fuel distributor membrane stop ring as defined in claim 4, wherein: the cushion block (5) is made of copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110008239.3A CN112847246A (en) | 2021-01-05 | 2021-01-05 | Device for assembling thrust augmentation fuel distributor film stop ring of aircraft engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110008239.3A CN112847246A (en) | 2021-01-05 | 2021-01-05 | Device for assembling thrust augmentation fuel distributor film stop ring of aircraft engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112847246A true CN112847246A (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110008239.3A Pending CN112847246A (en) | 2021-01-05 | 2021-01-05 | Device for assembling thrust augmentation fuel distributor film stop ring of aircraft engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN112847246A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116175990A (en) * | 2023-04-24 | 2023-05-30 | 国营川西机器厂 | Device and method for solving oil leakage faults of aeroengine parting film |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2436760Y (en) * | 2000-08-04 | 2001-06-27 | 浙江铭仕管业有限公司 | Clamp-press pip element |
| CN201089148Y (en) * | 2007-06-19 | 2008-07-23 | 国营红阳机械厂 | Simple screw-type pin removal |
| CN102357863A (en) * | 2011-09-30 | 2012-02-22 | 西安航空动力控制有限责任公司 | Sleeve-pulling tool |
| US20150300022A1 (en) * | 2013-12-20 | 2015-10-22 | Xinmin Wang | Tapered Sleeve Locking Type Reinforcing Bar Connecting Joint and its Mounting Tool |
| CN105382756A (en) * | 2015-11-24 | 2016-03-09 | 重庆普什机械有限责任公司 | Device for press fitting of diesel engine valve seat |
| CN205968858U (en) * | 2016-08-31 | 2017-02-22 | 尹星 | Wire thread insert replacer |
| CN206010921U (en) * | 2016-08-19 | 2017-03-15 | 刘安友 | Pressure rail frock |
| US9841017B1 (en) * | 2014-10-22 | 2017-12-12 | Scott Blood | Extraction device |
| CN107717851A (en) * | 2017-10-26 | 2018-02-23 | 中国石油集团西部钻探工程有限公司 | Orienting cover withdrawing device |
| CN207682305U (en) * | 2017-12-16 | 2018-08-03 | 江西腾勒动力有限公司 | A kind of engine lock folder assembly tooling |
| CN108555824A (en) * | 2018-05-23 | 2018-09-21 | 芜湖天航装备技术有限公司 | A kind of hose fixed pin assembly tooling |
| CN207953723U (en) * | 2017-05-25 | 2018-10-12 | 中国石油天然气集团公司 | Engine shock absorber seat extracting tool |
| CN109129309A (en) * | 2018-08-28 | 2019-01-04 | 西安理工大学 | Blind hole liner extracting tool |
| CN109352582A (en) * | 2018-11-29 | 2019-02-19 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of aero-engine calotte assembling jig and application method |
| CN209223928U (en) * | 2018-12-07 | 2019-08-09 | 南京航健航空装备技术服务有限公司 | A kind of assembling jig |
| CN110587535A (en) * | 2019-08-30 | 2019-12-20 | 太原科技大学 | Internal thread pin plays round pin device |
| CN211805875U (en) * | 2020-03-07 | 2020-10-30 | 江西中烟工业有限责任公司 | Special tool for mechanical seal of pump |
| CN111941349A (en) * | 2020-08-20 | 2020-11-17 | 中国人民解放军第五七二一工厂 | Valve core dismounting device and dismounting method of precision hydraulic valve |
-
2021
- 2021-01-05 CN CN202110008239.3A patent/CN112847246A/en active Pending
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2436760Y (en) * | 2000-08-04 | 2001-06-27 | 浙江铭仕管业有限公司 | Clamp-press pip element |
| CN201089148Y (en) * | 2007-06-19 | 2008-07-23 | 国营红阳机械厂 | Simple screw-type pin removal |
| CN102357863A (en) * | 2011-09-30 | 2012-02-22 | 西安航空动力控制有限责任公司 | Sleeve-pulling tool |
| US20150300022A1 (en) * | 2013-12-20 | 2015-10-22 | Xinmin Wang | Tapered Sleeve Locking Type Reinforcing Bar Connecting Joint and its Mounting Tool |
| US9841017B1 (en) * | 2014-10-22 | 2017-12-12 | Scott Blood | Extraction device |
| CN105382756A (en) * | 2015-11-24 | 2016-03-09 | 重庆普什机械有限责任公司 | Device for press fitting of diesel engine valve seat |
| CN206010921U (en) * | 2016-08-19 | 2017-03-15 | 刘安友 | Pressure rail frock |
| CN205968858U (en) * | 2016-08-31 | 2017-02-22 | 尹星 | Wire thread insert replacer |
| CN207953723U (en) * | 2017-05-25 | 2018-10-12 | 中国石油天然气集团公司 | Engine shock absorber seat extracting tool |
| CN107717851A (en) * | 2017-10-26 | 2018-02-23 | 中国石油集团西部钻探工程有限公司 | Orienting cover withdrawing device |
| CN207682305U (en) * | 2017-12-16 | 2018-08-03 | 江西腾勒动力有限公司 | A kind of engine lock folder assembly tooling |
| CN108555824A (en) * | 2018-05-23 | 2018-09-21 | 芜湖天航装备技术有限公司 | A kind of hose fixed pin assembly tooling |
| CN109129309A (en) * | 2018-08-28 | 2019-01-04 | 西安理工大学 | Blind hole liner extracting tool |
| CN109352582A (en) * | 2018-11-29 | 2019-02-19 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of aero-engine calotte assembling jig and application method |
| CN209223928U (en) * | 2018-12-07 | 2019-08-09 | 南京航健航空装备技术服务有限公司 | A kind of assembling jig |
| CN110587535A (en) * | 2019-08-30 | 2019-12-20 | 太原科技大学 | Internal thread pin plays round pin device |
| CN211805875U (en) * | 2020-03-07 | 2020-10-30 | 江西中烟工业有限责任公司 | Special tool for mechanical seal of pump |
| CN111941349A (en) * | 2020-08-20 | 2020-11-17 | 中国人民解放军第五七二一工厂 | Valve core dismounting device and dismounting method of precision hydraulic valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116175990A (en) * | 2023-04-24 | 2023-05-30 | 国营川西机器厂 | Device and method for solving oil leakage faults of aeroengine parting film |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210528 |
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