CN220613839U - Supporting anchor clamps are dismantled to aeroengine low pressure fan dish balancing weight - Google Patents
Supporting anchor clamps are dismantled to aeroengine low pressure fan dish balancing weight Download PDFInfo
- Publication number
- CN220613839U CN220613839U CN202322045617.2U CN202322045617U CN220613839U CN 220613839 U CN220613839 U CN 220613839U CN 202322045617 U CN202322045617 U CN 202322045617U CN 220613839 U CN220613839 U CN 220613839U
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- CN
- China
- Prior art keywords
- balancing weight
- circular arc
- anchor clamps
- low pressure
- pressure fan
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- 241000276425 Xiphophorus maculatus Species 0.000 claims abstract description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 210000002421 cell wall Anatomy 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 239000011651 chromium Substances 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims 1
- 238000007747 plating Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005553 drilling Methods 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a matched fixture for disassembling balancing weights of low-pressure fan disks of aeroengines, which comprises a fixture body, wherein the fixture body is a circular arc-shaped platy body, one side surface of the fixture body is a plane, the middle part of the other side surface is provided with a circular arc-shaped groove, the bottom surface of the groove extends towards the direction of a circle center, the extending part does not have groove walls, two ends of the bottom surface of the groove are respectively provided with a circular arc hole, each circular arc hole corresponds to three balancing weight mounting holes which are sequentially arranged at the mounting positions of the balancing weights on the fan disks, and two ends of the fixture body are provided with connecting structures for connecting the fan disks. The utility model is arranged on the fan disc through the connecting structure, when the drill bit is used for dismantling the rivet of the balancing weight, the position is fixed, the position is not eccentric, the fan disc is not easy to damage, the quality and the control risk can be ensured, the structure is simple, the manufacturing cost is low, the safety and the high efficiency are realized, the use is convenient, the practicability is strong, and the utility model is suitable for wide popularization and use.
Description
Technical Field
The utility model relates to a matched fixture for disassembling a balancing weight of a low-pressure fan disc of an aeroengine.
Background
The aeroengine is a novel reliable aeroengine which is provided by manufacturers for narrow passenger plane in recent years, can reduce the oil consumption by 11% -12% compared with the active engine, and has the noise lower than the requirement of 30dB in the third stage. Because the engine has short operation cycle, few fault reports are used, and the experience of engine maintenance manufacturers is insufficient, the technical barriers and intellectual property rights of the middle and outer are blocked in certain maintenance technology.
The balancing weight clearance ratio on this aeroengine fan dish subassembly is great, can't fixed position and the position decentered appears when dismantling the balancing weight, and the danger is high, and demolishs the balancing weight and demolish operating space little, damage fan dish easily, and the fan dish price is very expensive. Accordingly, there is a need in the industry to develop a suitable removal tool.
Disclosure of Invention
The utility model aims to provide the low-pressure fan disc balancing weight dismounting matching fixture for the aeroengine, which has the advantages of simple structure, low cost, convenience in use, safety, high efficiency and difficulty in damaging a fan disc.
The aim of the utility model is achieved by the following technical measures: the utility model provides a supporting anchor clamps are dismantled to aeroengine low pressure fan dish balancing weight, its characterized in that, includes the anchor clamps body, the anchor clamps body is convex platykurtic body, one side of anchor clamps body is the plane, and the middle part of another side is equipped with convex recess, the tank bottom face of recess stretches out towards the centre of a circle direction and the extension does not have the cell wall the tank bottom both ends of recess respectively are equipped with an circular arc hole, and every circular arc hole corresponds the three balancing weight mounting hole that the balancing weight mounted position set gradually on the fan dish the both ends of anchor clamps body are equipped with the connection structure who is used for connecting the fan dish.
The utility model is arranged on the fan disc through the connecting structure, when the drill bit is used for dismantling the rivet of the balancing weight, the position is fixed, the position is not eccentric, the fan disc is not easy to damage, the quality and the control risk can be ensured, the structure is simple, the manufacturing cost is low, the safety and the high efficiency are realized, the use is convenient, the practicability is strong, and the utility model is suitable for wide popularization and use.
According to the utility model, the included angle alpha between the circle centers of the two outermost mounting holes of the balancing weight mounting holes corresponding to each circular arc hole is 16 degrees, and the included angle beta between the circle centers of the two innermost mounting holes of the balancing weight mounting holes corresponding to the two circular arc holes is 16 degrees.
The connecting structure comprises a connecting hole and a fixing piece, wherein the fixing piece penetrates through the connecting hole and is fixed on the fan disc.
The fixing piece is a conical fixing pin.
The surface of the clamp is plated with the hard chromium layer.
Compared with the prior art, the utility model has the following remarkable effects:
the utility model is arranged on the fan disc through the connecting structure, when the drill bit is used for dismantling the rivet of the balancing weight, the position is fixed, the position is not eccentric, the fan disc is not easy to damage, and the quality and the control risk can be ensured.
The novel portable electric heating device is simple in structure, low in manufacturing cost, safe, efficient, convenient to use, high in practicality and suitable for wide popularization and use.
Drawings
The utility model will now be described in further detail with reference to the drawings and to specific examples.
FIG. 1 is a rear view of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a schematic perspective view of the fan tray of the present utility model;
fig. 4 is a front view of the utility model mounted on a fan tray.
Detailed Description
As shown in fig. 1 to 4, the low-pressure fan disc balancing weight dismounting matching fixture of the utility model comprises a fixture body 1 with a hard chrome layer plated on the surface, wherein the fixture body 1 is a circular arc-shaped platy body, one side surface of the fixture body 1 is a plane (see fig. 2), the middle of the other side surface is provided with a circular arc-shaped groove 2, the groove bottom surface of the groove 2 extends towards the direction of a circle center O, the extending part 8 is free of groove walls, two ends of the groove bottom surface of the groove 2 are respectively provided with a circular arc hole 3, each circular arc hole 3 corresponds to three balancing weight mounting holes 5 which are sequentially arranged at the balancing weight mounting positions on the fan disc 4, and two ends of the fixture body 1 are provided with connecting structures for connecting the fan disc 4, in the embodiment, the connecting structures comprise circular connecting holes 6 and conical fixing pins 7, the diameter of the connecting holes 6 is 6.5mm, the height of the conical fixing pins 7 is 37mm, and the conical fixing pins 7 penetrate through the connecting holes 6 to be fixed on the fan disc 4, so that the fixture is mounted on the fan disc 4.
The included angle alpha between the circle centers of the two outermost mounting holes of the balancing weight mounting holes 5 corresponding to each circular arc hole 3 is 16 degrees, and the included angle beta between the circle centers of the two innermost mounting holes of the balancing weight mounting holes 5 corresponding to the two circular arc holes 3 is 16 degrees.
The application process of the utility model is as follows:
1. the clamp is arranged on the fan disc, namely, two conical fixing pins are used for fixing the clamp on the fan disc;
2. mounting and positioning a drilling and grinding tool on the surface of the fan disc;
3. removing the horn heads of the counterweight rivets by using a proper drill bit;
4. drilling through the balancing weight by using a drilling and grinding tool, removing the drilling and grinding tool and the clamp, and removing the rivet by using a pin;
5. the weight was separated from the fan disc using a glass fiber chisel.
According to the technical requirements, the balancing weight on the low-pressure fan disc needs to be removed under the conditions of safety and high efficiency. According to the structural characteristics and the space distance of the engine parts, the accurate mapping is carried out, and the special positioning and guiding tool matched with the special positioning and guiding tool is designed by the applicant by utilizing the counterweight mounting holes of the flange edges in the low-pressure fan disc in combination with parameters such as the types, the materials and the strength of the counterweight. Through the installation, protection, the location of this frock, the manual electric drill of reuse carries out the depth processing to the balancing weight, reduces the bulk strength of balancing weight, uses glass fiber chisel to cut off balancing weight rivet at last and makes it demolish in the middle of the low pressure fan dish.
The fixture is mounted on the fan tray at 5 locations A, B, C, D, E along its circumference, which is shown in fig. 3 and 4 as being mounted at location a. In these 5 positions, which position the counterweight needs to be removed, the clamp is mounted in which position.
The embodiments of the present utility model are not limited thereto, and according to the above-described aspects of the present utility model, the present utility model may be modified, replaced or altered in various other ways without departing from the basic technical spirit of the present utility model, all of which fall within the scope of the claims of the present utility model, according to the general technical knowledge and conventional means of the present art.
Claims (5)
1. The utility model provides a supporting anchor clamps are dismantled to aeroengine low pressure fan dish balancing weight which characterized in that: including the anchor clamps body, the anchor clamps body is convex platy body, one side of anchor clamps body is the plane, and the middle part of another side is equipped with convex recess, the tank bottom face of recess stretches out towards the centre of a circle direction and the extension does not have the cell wall the tank bottom both ends of recess respectively are equipped with a circular arc hole, and every circular arc hole corresponds the three balancing weight mounting hole that balancing weight mounted position set gradually on the fan dish the both ends of anchor clamps body are equipped with the connection structure that is used for connecting the fan dish.
2. The aircraft engine low pressure fan disc balancing weight disassembly kit of claim 1, wherein: the included angle alpha between the circle centers of the two outermost mounting holes of the balancing weight mounting holes corresponding to each circular arc hole is 16 degrees, and the included angle beta between the circle centers of the two innermost mounting holes of the balancing weight mounting holes corresponding to the two circular arc holes is 16 degrees.
3. The aircraft engine low pressure fan disc balancing weight disassembly kit of claim 2, wherein: the connecting structure comprises a connecting hole and a fixing piece, and the fixing piece penetrates through the connecting hole to be fixed on the fan disc.
4. The aircraft engine low pressure fan disc balancing weight disassembly kit of claim 3, wherein: the fixing piece is a conical fixing pin.
5. The aircraft engine low pressure fan disc balancing weight disassembly mating fixture of claim 4, wherein: and plating a hard chromium layer on the surface of the clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322045617.2U CN220613839U (en) | 2023-07-31 | 2023-07-31 | Supporting anchor clamps are dismantled to aeroengine low pressure fan dish balancing weight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322045617.2U CN220613839U (en) | 2023-07-31 | 2023-07-31 | Supporting anchor clamps are dismantled to aeroengine low pressure fan dish balancing weight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220613839U true CN220613839U (en) | 2024-03-19 |
Family
ID=90235270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322045617.2U Active CN220613839U (en) | 2023-07-31 | 2023-07-31 | Supporting anchor clamps are dismantled to aeroengine low pressure fan dish balancing weight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220613839U (en) |
-
2023
- 2023-07-31 CN CN202322045617.2U patent/CN220613839U/en active Active
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