CN217292130U - Nut limiting and decomposing device for auxiliary power device - Google Patents
Nut limiting and decomposing device for auxiliary power device Download PDFInfo
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- CN217292130U CN217292130U CN202221262230.1U CN202221262230U CN217292130U CN 217292130 U CN217292130 U CN 217292130U CN 202221262230 U CN202221262230 U CN 202221262230U CN 217292130 U CN217292130 U CN 217292130U
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- auxiliary power
- nut
- fixed cylinder
- fixed
- power device
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
Abstract
The utility model discloses a spacing decomposition device of nut for auxiliary power device belongs to auxiliary power device technical field, which comprises a bracket, be provided with fixed section of thick bamboo on the support, fixed section of thick bamboo top surface and bottom surface run through the setting, fixed section of thick bamboo lateral wall is provided with 4 fixed orificess, be provided with the detachable setting element in the fixed orificess. Through penetrating through the setting with fixed section of thick bamboo top surface and bottom surface, can go on the maintenance efficiency of auxiliary power device with the decomposition and the fixed follow two directions of turbine shaft stop nut, be convenient for improve. Through setting up fixed orifices and setting element, can fix turbine shaft stop nut, the decomposition of the turbine shaft stop nut of being convenient for.
Description
Technical Field
The utility model belongs to the technical field of auxiliary power device, concretely relates to spacing decomposition device of nut for auxiliary power device.
Background
An Auxiliary Power device (hereinafter abbreviated as APU) is a small Auxiliary Power device that can independently output compressed air or supply Power to an aircraft. Before taking off, compressed air is provided for the aircraft, the compressed air can be used for air supply of an air conditioning system of the aircraft or air source starting for a starter of a main engine, and electric power can be output for an electric power system of the aircraft before the main engine is started, so that the dependence of the aircraft on airport equipment is reduced; in flight, when the main engine or the power generation device thereof breaks down, emergency energy can be provided for the aircraft, and the flight safety is improved; and when the aircraft lands, the energy source can be provided for the aircraft.
The auxiliary power device consists of a power section, a load compressor and an accessory gearbox. Due to the importance of aviation products, procedures such as cleaning, dismounting, repairing, testing and the like are required to be carried out every certain operation period. And only after finishing all maintenance works and confirming that the performance of the APU meets the airworthiness requirement, the APU can be reinstalled on the airplane to be continuously put into use.
In the maintenance process, the first-stage turbine rotor needs to be detached for cleaning, inspection and repair, but the middle section of the turbine shaft is provided with a limit nut, the side surface of the nut is provided with four spline grooves, and the end surface of the turbine shaft is also provided with a limit part, so that the limit nut in the middle section cannot be directly detached by using a universal wrench or a sleeve.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a spacing decomposition device of nut for auxiliary power device solves among the prior art and can't use general purpose wrench or sleeve and directly pull down the stop nut in middle section, leads to the technical problem of auxiliary power device's the maintenance degree of difficulty grow.
The utility model discloses a spacing decomposition device of nut for auxiliary power device, which comprises a bracket, be provided with solid fixed cylinder on the support, gu fixed cylinder top surface and bottom surface run through the setting, gu fixed cylinder lateral wall is provided with 4 fixed orificess, be provided with the detachable setting element in the fixed orifices.
The working principle is as follows: when the turbine shaft limiting nut is used, the turbine shaft limiting nut is placed from the bottom surface of the fixing cylinder, then the positioning piece is inserted into the fixing hole, the positioning piece is inserted into the spline groove of the turbine shaft limiting nut to fix the turbine shaft limiting nut, and the turbine shaft limiting nut is fixed and then is disassembled from the top surface of the fixing cylinder by using a wrench. Through penetrating through the setting with fixed section of thick bamboo top surface and bottom surface, can go on the maintenance efficiency of auxiliary power device with the decomposition and the fixed follow two directions of turbine shaft stop nut, be convenient for improve. Through setting up fixed orifices and setting element, can fix turbine shaft stop nut, the decomposition of the turbine shaft stop nut of being convenient for.
Furthermore, 4 fixing holes are formed in the same section of the fixing cylinder.
The 4 fixing holes are formed in the same section of the fixing barrel, so that the turbine shaft limiting nut can be supported at the same height, and the turbine shaft limiting nut is kept horizontal.
Furthermore, 4 fixing holes are uniformly distributed on the same section.
Through with 4 fixed orificess evenly distributed at same section, can make the even atress of solid fixed cylinder, avoid the uneven life who influences solid fixed cylinder of atress.
Further, the positioning piece is a positioning pin.
The positioning structure is a positioning pin, so that the structure is simple and the use is convenient.
Furthermore, a limiting plate is arranged on the locating pin, and the area of the limiting plate is larger than that of the fixing hole.
Through setting up limiting plate and area, can avoid the locating pin to get into the position fixing hole in whole, the dismantlement of the locating pin of being convenient for.
Furthermore, a supporting leg is arranged on the support, and the length of the supporting leg is greater than the height of the fixed cylinder.
Through setting up landing leg and length, can make when using to have the certain distance between holding surface and the fixed cylinder, be convenient for put into turbine shaft stop nut.
Further, the number of the supporting legs is at least 4.
Through setting up landing leg quantity, can guarantee to play the supporting role to the solid fixed cylinder, be convenient for go on of decomposition.
Further, the fixing holes are positioned between the adjacent support legs.
The position of the fixing hole is convenient for the disassembly and the assembly of the fixing piece.
Furthermore, a hollow connecting disc is arranged on the support and connected with the fixed cylinder.
Through setting up hollow connection pad, be convenient for be connected a fixed section of thick bamboo and support.
Further, the fixed cylinder is fixedly connected with the connecting disc.
Further, the fixed cylinder is movably connected with the connecting disc.
Furthermore, a limiting ring is arranged on the upper portion of the fixing cylinder, the hollow portion of the connecting disc is circular, and the diameter of the limiting ring is larger than that of the hollow portion of the connecting disc.
Through setting up the spacing ring, can put into the fixed cylinder fast on the connection pad to realize the location under fixed cylinder self action of gravity.
The utility model has the advantages that:
1. the top surface and the bottom surface of the fixing cylinder are arranged in a penetrating manner, so that the turbine shaft limiting nut can be disassembled and fixed from two directions, and the maintenance efficiency of the auxiliary power device is improved conveniently;
2. the turbine shaft limiting nut can be fixed by arranging the fixing hole and the positioning piece, so that the turbine shaft limiting nut is convenient to disassemble;
3. the 4 fixing holes are formed in the same section of the fixing cylinder, so that the turbine shaft limiting nut can be supported at the same height, and the turbine shaft limiting nut is kept horizontal;
4. 4 fixing holes are uniformly distributed on the same section, so that the fixing cylinder can be uniformly stressed, and the influence of nonuniform stress on the service life of the fixing cylinder is avoided;
5. the positioning construction is a positioning pin, so that the structure is simple and the use is convenient;
6. by arranging the limiting plate and the area of the limiting plate, the positioning pins can be prevented from completely entering the position fixing holes, and the positioning pins can be conveniently detached;
7. by arranging the support legs and the length of the support legs, a certain distance can be reserved between the support surface and the fixing cylinder when the turbine shaft limiting nut is used, so that the turbine shaft limiting nut can be conveniently placed;
8. by setting the number of the supporting legs, the fixed cylinder can be supported, and the disassembly is convenient;
9. the position of the fixing hole is convenient for the disassembly and the assembly of the fixing piece;
10. the hollow connecting disc is arranged, so that the fixed cylinder can be conveniently connected with the bracket;
11. through setting up the spacing ring, can put into the fixed cylinder fast on the connection pad to realize the location under fixed cylinder self action of gravity.
Drawings
FIG. 1 is a schematic view of the structure of the limiting and disassembling device of the present invention;
FIG. 2 is a schematic view of the top view of the limiting and disassembling device of the present invention;
fig. 3 is a schematic view of the positioning pin structure of the present invention.
In the figure: 1-support, 2-fixed cylinder, 3-fixed hole, 4-locating pin, 5-limiting plate, 6-landing leg, 7-connecting disc and 8-limiting ring.
Detailed Description
In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.
Example 1
The utility model provides a spacing decomposition device of nut for auxiliary power device, its concrete structure is shown as figure 1-2, includes support 1, be provided with a fixed section of thick bamboo 2 on the support 1, 2 top surfaces and the bottom surface of a fixed section of thick bamboo run through the setting, 2 lateral walls of a fixed section of thick bamboo are provided with 4 fixed orificess 3, be provided with the detachable setting element in the fixed orificess 3.
The working principle is as follows: when the turbine shaft limiting nut is used, the turbine shaft limiting nut is placed from the bottom surface of the fixing cylinder 2, then the positioning piece is inserted into the fixing hole 3, the positioning piece is inserted into the spline groove of the turbine shaft limiting nut to fix the turbine shaft limiting nut, and the turbine shaft limiting nut is fixed and then is disassembled from the top surface of the fixing cylinder 2 by using a wrench. Through penetrating the top surface and the bottom surface of the fixing barrel 2, the decomposition and the fixation of the turbine shaft limiting nut can be carried out from two directions, and the maintenance efficiency of the auxiliary power device is improved conveniently. Through setting up fixed orifices 3 and setting element, can fix turbine shaft stop nut, be convenient for the decomposition of turbine shaft stop nut.
Example 2:
as a preferred embodiment of the present invention, the specific structure is as shown in fig. 1-2, and it discloses the following improvement on the basis of embodiment 1, that is, 4 fixing holes 3 are in the same section of the fixed cylinder 2, 4 fixing holes 3 are uniformly distributed on the same section, the positioning member is a positioning pin 4, a limiting plate 5 is provided on the positioning pin 4, and the area of the limiting plate 5 is greater than the area of the fixing hole 3.
By arranging the 4 fixing holes 3 on the same section of the fixing cylinder 2, the turbine shaft limiting nut can be supported at the same height, so that the turbine shaft limiting nut is kept horizontal.
Through with 4 fixed orificess 3 in same section evenly distributed, can make the even atress of a fixed section of thick bamboo 2, avoid the uneven life who influences a fixed section of thick bamboo 2 of atress.
The positioning structure is the positioning pin 4, so that the structure is simple and the use is convenient.
Through setting up limiting plate 5 and area, can avoid locating pin 4 all to get into the position fixing hole, be convenient for locating pin 4's dismantlement.
Example 3:
in this embodiment, as a preferred embodiment of the present invention, a specific structure is shown in fig. 1-2, which discloses the following improvement on the basis of embodiment 1, the support 1 is provided with the supporting legs 6, the length of the supporting legs 6 is greater than the height of the fixed cylinder 2, the number of the supporting legs 6 is 4, and the fixing holes 3 are located between the adjacent supporting legs 6.
Through setting up landing leg 6 and length, can make when using to have a certain distance between holding surface and the fixed cylinder 2, be convenient for put into turbine shaft stop nut.
Through setting up 6 quantity of landing legs, can guarantee to play the supporting role to fixed section of thick bamboo 2, be convenient for go on of decomposition.
Through the position of the fixing hole 3, the fixing piece is convenient to detach and mount.
Example 4:
in this embodiment, as a preferred embodiment of the present invention, the following improvement is disclosed on the basis of embodiment 1, wherein a hollow connecting pad 7 is provided on the support 1, the connecting pad 7 is connected to the fixed cylinder 2, and the fixed cylinder 2 is fixedly connected to the connecting pad 7.
Through setting up hollow connection pad 7, be convenient for be connected fixed cylinder 2 with support 1.
Example 5:
in this embodiment, as a preferred embodiment of the present invention, the specific structure is as shown in fig. 1-2, which discloses the following improvement on the basis of embodiment 4, wherein the fixed cylinder 2 is movably connected to the connecting disc 7, the upper portion of the fixed cylinder 2 is provided with a limit ring 8, the hollow portion of the connecting disc 7 is circular, and the diameter of the limit ring 8 is greater than the diameter of the hollow portion of the connecting disc 7.
Through setting up spacing ring 8, can put into fixed cylinder 2 fast on connection pad 7 to realize the location under fixed cylinder 2 self action of gravity.
Claims (10)
1. The utility model provides a spacing decomposition device of nut for auxiliary power device, includes support (1), its characterized in that, be provided with solid fixed cylinder (2) on support (1), gu fixed cylinder (2) top surface and bottom surface run through the setting, gu fixed cylinder (2) lateral wall is provided with 4 fixed orificess (3), be provided with the detachable setting element in fixed orificess (3).
2. The nut limiting and disassembling device for the auxiliary power unit according to claim 1, characterized in that 4 of said fixing holes (3) are in the same section of said fixed cylinder (2).
3. A nut limit decomposition device for auxiliary power unit according to claim 2 characterized in that 4 said fixing holes (3) are evenly distributed on the same section.
4. The nut limit decomposition device for the auxiliary power device according to claim 1, wherein the positioning member is a positioning pin (4).
5. The nut limiting and disassembling device for the auxiliary power device according to claim 4, characterized in that a limiting plate (5) is arranged on the positioning pin (4), and the area of the limiting plate (5) is larger than that of the fixing hole (3).
6. The nut limiting and disassembling device for the auxiliary power device according to claim 1, characterized in that a leg (6) is arranged on the bracket (1), and the length of the leg (6) is greater than the height of the fixed cylinder (2).
7. A nut limit decomposition device for an auxiliary power device according to claim 6, characterized in that the fixing hole (3) is located between adjacent legs (6).
8. A nut limiting and disassembling device for an auxiliary power unit according to any one of claims 1-7, characterized in that the bracket (1) is provided with a hollow connecting disc (7), and the connecting disc (7) is connected with the fixed cylinder (2).
9. The nut limiting and disassembling device for the auxiliary power unit according to claim 8, characterized in that the fixed cylinder (2) is movably connected with the connecting disc (7).
10. The nut limit decomposition device for the auxiliary power device according to claim 9, characterized in that a limit ring (8) is arranged at the upper part of the fixed cylinder (2), the hollow part of the connecting disc (7) is circular, and the diameter of the limit ring (8) is larger than the diameter of the circular hollow part of the connecting disc (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221262230.1U CN217292130U (en) | 2022-05-23 | 2022-05-23 | Nut limiting and decomposing device for auxiliary power device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221262230.1U CN217292130U (en) | 2022-05-23 | 2022-05-23 | Nut limiting and decomposing device for auxiliary power device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217292130U true CN217292130U (en) | 2022-08-26 |
Family
ID=82919065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221262230.1U Active CN217292130U (en) | 2022-05-23 | 2022-05-23 | Nut limiting and decomposing device for auxiliary power device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217292130U (en) |
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2022
- 2022-05-23 CN CN202221262230.1U patent/CN217292130U/en active Active
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