CN109611216B - Gear box hanging device - Google Patents
Gear box hanging device Download PDFInfo
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- CN109611216B CN109611216B CN201811538359.9A CN201811538359A CN109611216B CN 109611216 B CN109611216 B CN 109611216B CN 201811538359 A CN201811538359 A CN 201811538359A CN 109611216 B CN109611216 B CN 109611216B
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- Prior art keywords
- mounting hole
- bolt
- mounting
- mounting plate
- gear box
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/32—Arrangement, mounting, or driving, of auxiliaries
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Details Of Gearings (AREA)
Abstract
The application belongs to the technical field of aero-engine design, and particularly relates to a gear box hanging device. The gear box hanging device comprises an upper hanging part, and the upper hanging part and the engine casing shell are integrally cast; the first end of the lifting ring supporting plate is connected with the upper hoisting part; the lower hoisting part is integrally cast with the gearbox shell and comprises a first mounting plate and a second mounting plate which are parallel to each other, a first mounting hole is formed in the first mounting plate, a second mounting hole is formed in the second mounting plate, and the first mounting hole is larger than the second mounting hole; and the bolt is connected with the lifting ring support plate mounting hole and the mounting hole on the lower lifting part. The upper hoisting part and the engine casing are integrally cast, the lower hoisting part and the gear box casing are integrally cast, the number of parts is reduced, and the bearing capacity is high.
Description
Technical Field
The application belongs to the technical field of the design of hanging devices, and particularly relates to a gear box hanging device.
Background
The aero-engine accessory transmission gear box is connected with the engine casing through the hanging device, so that the gear box is fixedly installed on the engine, and the hanging device for fixing the gear box needs to have high reliability in order to ensure the reliable work of the gear box on the engine due to the fact that the maneuvering load of the aero-engine is very large.
However, the existing hanging device for the transmission gear box of the aircraft engine is provided with a lower lifting lug on the shell of the gear box through a bolt, the hanging device is large in structural part number and complex in structure, and under the working condition of maneuvering large load of the aircraft engine, the bearing capacity of the hanging device is limited, so that the reliability and the service life of the gear box are reduced.
Disclosure of Invention
It is an object of the present application to provide a gearbox hanger that solves or at least mitigates at least one of the above-mentioned disadvantages of the prior art.
A gear box hanging device comprises an upper hanging part and a lower hanging part, wherein the upper hanging part and an engine casing shell are integrally cast;
the first end of the lifting ring supporting plate is connected with the upper hoisting part;
the lower hoisting part is integrally cast with the gearbox shell and comprises a first mounting plate and a second mounting plate which are parallel to each other, a first mounting hole is formed in the first mounting plate, a second mounting hole is formed in the second mounting plate, and the first mounting hole is larger than the second mounting hole;
the bolt, bolted connection rings extension board mounting hole and the mounting hole of hoisting down on the portion, the diameter that is close to the screw rod first end of nut of bolt is greater than the diameter of the screw rod second end of keeping away from the nut, the contact position of screw rod first end and screw rod second end forms annular limit, the bush that has the border is installed to the mounting hole of the first mounting panel of hoisting down the portion, the bush that has the border is installed to the mounting hole of the second mounting panel of hoisting down the portion, under the installation status, the bush can avoid bolt and hoisting down portion to take place wearing and tearing, and, the rings extension board can be pressed from both sides tightly with the bush border to the annular border of bolt, avoid rings extension board and hoisting down portion directly to connect the damage and cause hoisting portion wearing and tearing.
In accordance with at least one embodiment of the present application,
the hoisting part comprises a third mounting plate and a fourth mounting plate which are parallel to each other, and mounting holes are formed in the third mounting plate and the fourth mounting plate.
In accordance with at least one embodiment of the present application,
the upper lifting ring support plate is arranged between the two mounting plates of the upper lifting part and fixedly connected with the self-locking screws through bolts.
In accordance with at least one embodiment of the present application,
the fixing bolt of lower hoist and mount portion passes through self-locking nut to be fixed, installs the gasket between the self-locking nut gear box casing hoist and mount portion, can avoid taking place wearing and tearing between self-locking nut and the hoist and mount portion.
In accordance with at least one embodiment of the present application,
and joint bearings are respectively arranged in the two mounting holes of the lifting ring support plate, and when the mounting holes through which the bolts pass are not concentric, the joint bearings can ensure normal assembly.
The application has at least the following beneficial technical effects:
the application provides a gear box cable suspension device, go up hoist and mount portion and the integrative casting of engine machine casket casing, hoist and mount portion and the integrative casting of gear box casing down, part quantity reduces, and bearing capacity is big to the wearing and tearing of hoist and mount portion under specific bolt structure's installation setting can alleviate.
Drawings
FIG. 1 is a schematic view of the installation of a preferred embodiment of a gearbox hanger provided herein;
FIG. 2 is a schematic view in half section of the A-A axis provided herein;
FIG. 3 is a schematic view of a lifting eye support plate of the gearbox hanger provided by the present application.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are a subset of the embodiments in the present application and not all embodiments in the present application. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The present application is described in further detail below with reference to fig. 1 to 3.
The application provides a gear box cable suspension device, through the integrative casting of hoist and mount portion 1 and engine machine casket casing, hoist and mount portion 5 and the integrative casting of gear box casing down reduce part quantity, increase bearing capacity to the structure and the installation through bolt 7 set up can alleviate the wearing and tearing of hoist and mount portion 5 down.
As shown in fig. 1 and 2, the gear box hanging device provided by the application comprises an upper hanging part 1, a hanging ring support plate 2, a lower hanging part and a bolt 7.
Specifically, the upper hoisting part 1 comprises a third mounting plate and a fourth mounting plate which are parallel, and in order to reduce the number of parts and enhance the bearing capacity of the hoisting device, the third mounting plate and the fourth mounting plate are integrally cast with the casing of the engine case; and mounting holes for fixing are arranged on the third mounting plate and the fourth mounting plate.
The lifting ring support plate 2 is characterized in that the first end of the lifting ring support plate 2 is connected with the upper lifting part 1, and the selected installation mode of the embodiment is that installation holes are formed in two ends of the lifting ring support plate 2, the installation hole in the first end of the lifting ring support plate 2 is placed between installation holes in the third installation plate and the fourth installation plate of the upper lifting part 1, and then the installation holes are fixedly connected together through a bolt 4 and a self-locking nut 9.
Further, for installation convenience, as shown in fig. 1 and 3, joint bearings 3 and 6 are arranged in the installation holes of the lifting ring support plate 2, and the joint bearings have a self-aligning function, so that bolts can still pass through when different installation holes are not concentric to a large degree, and normal assembly is ensured.
The lower hoisting part 5 is integrally cast with the gearbox shell in order to reduce the number of parts and enhance the bearing capacity of the hanging device, the lower hoisting part 5 comprises a first mounting plate and a second mounting plate which are parallel to each other, a first mounting hole is formed in the first mounting plate, a second mounting hole is formed in the second mounting plate, and the first mounting hole is larger than the second mounting hole;
the bolt 7 is connected with the mounting hole of the lifting eye support plate 2 and the mounting hole on the lower lifting part 5 through the bolt 7, the gear box is made of magnesium alloy materials with smaller density, so the lower lifting part 5 is usually not wear-resistant, in order to avoid the wear of the lifting eye support plate 2 and the bolt 7 on the non-wear-resistant lower lifting part 5, the bolt 7 is designed correspondingly, the diameter of the first end of a screw rod of the bolt 7 close to a nut is larger than that of the second end of the screw rod far away from the nut, an annular edge 13 is formed at the contact position of the first end of the screw rod and the second end of the screw rod, a bushing 8 with an edge is mounted in the mounting hole of the first mounting plate of the lower lifting part 5, a bushing 10 with an edge is mounted in the mounting hole of the second mounting plate of the lower lifting part 5, in the mounting state, the bushings 8 and 10 can avoid the abrasion of the bolt 7 and the lower lifting part 5, and the annular edge 13 of the bushing 10 of the bolt 7 can clamp the lifting eye support plate 2, avoid rings extension board 2 and lower hoist and mount portion 5 direct contact to cause hoist and mount portion 5 wearing and tearing down.
In some optional embodiments, the bolt 7 is fixed by a self-locking nut 12, and a gasket 11 is installed between the self-locking nut 12 and the lower lifting part 5, so that abrasion between the self-locking nut 12 and the lower lifting part 5 can be avoided.
In some alternative embodiments, the two mounting holes of the lifting eye plate 2 are respectively provided with the joint bearings 3 and 6, and when the mounting holes through which the bolts 7 pass are not concentric, the joint bearings 3 and 6 can ensure normal assembly.
The application provides a gear box cable suspension device, through the integrative casting of hoist and mount portion 1 and engine machine casket casing, hoist and mount portion 5 and the integrative casting of gear box casing down have reduced part quantity to cable suspension device bearing capacity increase, in addition, the wearing and tearing of hoist and mount portion 1 can be alleviateed in the installation setting of bolt 7.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (5)
1. A gearbox hanger, comprising:
the lifting part (1), the lifting part (1) comprises an engine casing shell which is integrally cast;
the first end of the lifting ring support plate (2) is connected with the upper lifting part (1);
the gearbox casing is characterized by comprising a lower hoisting part (5), wherein the lower hoisting part (5) and the gearbox casing are integrally cast, the lower hoisting part (5) comprises a first mounting plate and a second mounting plate which are parallel to each other, a first mounting hole is formed in the first mounting plate, a second mounting hole is formed in the second mounting plate, and the first mounting hole is larger than the second mounting hole;
the hoisting ring support plate (2) is connected with a mounting hole in the lower hoisting part (5) through a bolt (7), the diameter of the first end of a screw rod, close to a nut, of the bolt (7) is larger than the diameter of the second end of the screw rod, far away from the nut, the contact position of the first end of the screw rod and the second end of the screw rod forms an annular edge, a first bushing (8) with the edge is installed between the first mounting hole and the bolt (7) in an interference mode, a second bushing (10) with the edge is installed between the second mounting hole and the bolt (7) in an interference mode, the first bushing (8) and the second bushing (10) can prevent the bolt (7) and the lower hoisting part (5) from being worn, in addition, the annular edge of the bolt (7) and the edge of the second bushing (10) clamp the hoisting ring support plate (2), can avoid rings extension board (2) with hoist and mount portion (5) direct contact down avoids the magnesium alloy casing of hoist and mount portion (5) takes place wearing and tearing down.
2. The gear box hanging device according to claim 1, wherein the upper hanging part (1) comprises a third mounting plate and a fourth mounting plate which are parallel to each other, and mounting holes are formed in the third mounting plate and the fourth mounting plate.
3. The gear box hanging device according to claim 1, wherein the hanging ring support plate (2) and the mounting hole on the mounting plate of the upper hanging part (1) are fixedly connected through a bolt (4) and a self-locking nut (9).
4. The gear box hanging device according to claim 1, wherein the bolt (7) is fixed by a self-locking nut (12), and a gasket (11) is arranged between the self-locking nut (12) and the lower hanging part (5) so as to avoid abrasion between the self-locking nut (12) and a magnesium alloy shell of the lower hanging part (5).
5. A gear box suspension device according to claim 3, wherein the two mounting holes of the lifting ring support plate (2) are respectively provided with a joint bearing (3, 6), and the joint bearings (3, 6) can ensure normal assembly when the mounting holes through which the bolts (4, 7) pass are not concentric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811538359.9A CN109611216B (en) | 2018-12-16 | 2018-12-16 | Gear box hanging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811538359.9A CN109611216B (en) | 2018-12-16 | 2018-12-16 | Gear box hanging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109611216A CN109611216A (en) | 2019-04-12 |
| CN109611216B true CN109611216B (en) | 2021-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811538359.9A Active CN109611216B (en) | 2018-12-16 | 2018-12-16 | Gear box hanging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109611216B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412646B (en) * | 2022-02-18 | 2024-03-19 | 中国航发贵阳发动机设计研究所 | Fixing structure of stress application outer ring main pipe |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016112187A2 (en) * | 2015-01-07 | 2016-07-14 | Lord Corporation | Aircraft engine mount |
| CN206915557U (en) * | 2016-08-23 | 2018-01-23 | 哈尔滨东安发动机（集团）有限公司 | A kind of suspending assembly |
| CN207157555U (en) * | 2017-09-05 | 2018-03-30 | 沈阳铸航科技有限公司 | A kind of aircraft engine shell cast part |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3014840B1 (en) * | 2013-12-17 | 2017-10-13 | Airbus Operations Sas | AIRCRAFT ASSEMBLY COMPRISING A MOTOR ATTACHING BODY EQUIPPED WITH AT LEAST ONE MANILITY SUPPORT BRACKET PENETRATING IN THE HOUSING OF THE ATTACHING MAT |
-
2018
- 2018-12-16 CN CN201811538359.9A patent/CN109611216B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016112187A2 (en) * | 2015-01-07 | 2016-07-14 | Lord Corporation | Aircraft engine mount |
| CN206915557U (en) * | 2016-08-23 | 2018-01-23 | 哈尔滨东安发动机（集团）有限公司 | A kind of suspending assembly |
| CN207157555U (en) * | 2017-09-05 | 2018-03-30 | 沈阳铸航科技有限公司 | A kind of aircraft engine shell cast part |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109611216A (en) | 2019-04-12 |
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