CN115741558A - Dismounting wrench for connecting nut in shaft cavity of aircraft engine - Google Patents
Dismounting wrench for connecting nut in shaft cavity of aircraft engine Download PDFInfo
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- CN115741558A CN115741558A CN202211522210.8A CN202211522210A CN115741558A CN 115741558 A CN115741558 A CN 115741558A CN 202211522210 A CN202211522210 A CN 202211522210A CN 115741558 A CN115741558 A CN 115741558A
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- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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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
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The application belongs to the technical field of dismounting of connecting nuts in an axial cavity of an aircraft engine, and particularly relates to a dismounting wrench for connecting nuts in the axial cavity of the aircraft engine, which comprises an electric wrench mechanism, a wrench head folding mechanism and a wrench rod positioning mechanism, wherein the electric wrench mechanism is used for electrically twisting the connecting nuts and comprises an electric wrench, a wrench extension bar and a wrench head; the wrench head folding mechanism is used for folding the wrench head and comprises a folding mechanism servo electric cylinder, a guide sleeve, a guide pillar, a folding driving seat, a folding rod, a folding mechanism fixing seat and a switching rod; the wrench rod positioning mechanism is used for positioning and butting the wrench lengthening rod and the wrench head and comprises a positioning mechanism servo electric cylinder, a positioning mechanism driving seat, a positioning mechanism sliding block, a positioning mechanism guide rail and a positioning mechanism mounting seat.
Description
Technical Field
The utility model belongs to the technical field of the dismouting of coupling nut in the aircraft engine shaft intracavity, concretely relates to aircraft engine shaft intracavity coupling nut dismouting spanner.
Background
In the shaft cavity of the aircraft engine, the connection between the parts is carried out by utilizing the connection nut to cooperate with the connection screw rod, at present, the connection nut is mostly assembled and disassembled by utilizing a wrench manually in the shaft cavity, the opening of the shaft cavity is small, the whole body is long and thin, the connection nut is difficult to be screwed effectively under the condition that the internal space is narrow, the operation is inconvenient, and the collision damage is easily caused to the inner part of the shaft cavity.
The present application has been made in view of the above-mentioned technical drawbacks.
It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present application.
Disclosure of Invention
The present application aims to provide a spanner for dismounting and mounting a coupling nut in an aircraft engine shaft cavity, which overcomes or alleviates at least one of the technical drawbacks of the known existing technologies.
The technical scheme of the application is as follows:
a wrench for dismounting and mounting a connecting nut in an axial cavity of an aircraft engine comprises an electric wrench mechanism, a wrench head folding mechanism and a wrench rod positioning mechanism, wherein,
the electric wrench mechanism is used for electrically twisting the connecting nut and comprises an electric wrench, a wrench lengthening bar and a wrench head;
the wrench head folding mechanism is used for folding the wrench head and comprises a folding mechanism servo electric cylinder, a guide sleeve, a guide pillar, a folding driving seat, a folding rod, a folding mechanism fixing seat and a switching rod;
the wrench rod positioning mechanism is used for positioning and butting the wrench lengthening rod and the wrench head and comprises a positioning mechanism servo electric cylinder, a positioning mechanism driving seat, a positioning mechanism sliding block, a positioning mechanism guide rail and a positioning mechanism mounting seat;
a wrench lengthening bar is connected below the electric wrench;
the wrench extension bar is arranged on the folding mechanism fixing seat and is vertically constrained by the four fixing guide seats;
the electric wrench is arranged on the positioning mechanism driving seat;
the positioning mechanism driving seat is fixed with an electric cylinder head of a positioning mechanism servo electric cylinder and fixed on a positioning mechanism sliding block;
the positioning mechanism sliding block is arranged on the positioning mechanism guide rail;
the positioning mechanism guide rail is fixed on the positioning mechanism mounting seat;
the positioning mechanism mounting seat is fixed on one side of the base;
a folding mechanism fixing seat is fixed below the base;
a servo electric cylinder of the folding mechanism is fixed on one side of the base, and two guide sleeves are arranged on the servo electric cylinder;
two guide posts are arranged in the two guide sleeves;
the two guide columns are fixed on the folding driving seat;
the folding driving seat is fixedly connected with an electric cylinder head of a servo electric cylinder of the folding mechanism through a pin shaft and a folding rod;
the folding rod is vertically constrained through four fixed guide seats and is connected with the adapter rod through a pin shaft;
the adapter rod is connected with the wrench head through a pin shaft;
the wrench head is hinged on the folding mechanism fixing seat;
after the wrench head stretches into the axle chamber, can drive with the servo electric jar of folding mechanism, make wrench head level folding, and then can drive with the servo electric jar of positioning mechanism, make wrench extension bar move down, the butt joint is fixed a position to the outer cover tooth that makes wrench extension bar front end and the first inner cover tooth of wrench, can be through position adjustment afterwards, make the overhead cover of wrench cup connect coupling nut, sleeve and the first inner cover tooth space insection of wrench are connected, thereby can twist coupling nut through electric wrench.
According to at least one embodiment of the application, in the aviation engine shaft cavity connecting nut dismounting wrench, m is less than n;
wherein,
m is the maximum size of the spanner extension bar and the spanner head in the radial direction;
and n is the size of the shaft cavity inlet in the radial direction.
According to at least one embodiment of the application, in the dismounting wrench for connecting the nut in the shaft cavity of the aircraft engine, I + p is greater than o;
wherein,
i is the allowed distance between the wrench lengthening bar and the shaft cavity inlet when the wrench head is stretched into the shaft cavity and horizontally folded;
p is the eccentricity of a sleeve on the wrench head when the wrench head is horizontally folded after the wrench head extends into the shaft cavity;
and o is the eccentric moment of the connecting nut.
Drawings
FIG. 1 is a schematic view of an angle of a nut dismounting wrench connected in an aircraft engine shaft cavity according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of another angle of a wrench for dismounting and mounting a connecting nut in a shaft cavity of an aircraft engine provided by an embodiment of the application;
FIG. 3 is a partial schematic view of a wrench for removing and installing a connecting nut in a shaft cavity of an aircraft engine according to an embodiment of the present disclosure;
fig. 4 is a schematic view illustrating a wrench head of a wrench for disassembling and assembling a connecting nut in a shaft cavity of an aircraft engine according to an embodiment of the present disclosure is vertically folded;
FIG. 5 is a schematic view of a horizontal folding of a wrench head of a spanner for dismounting and mounting a connecting nut in a shaft cavity of an aircraft engine according to an embodiment of the present disclosure;
wherein:
1-electric wrench mechanism; 2-wrench head folding mechanism; 4-a wrench rod positioning mechanism; 5-servo electric cylinder of positioning mechanism; 6-a positioning mechanism driving seat; 7-positioning mechanism slide block; 8-positioning mechanism guide rails; 9-positioning mechanism mounting base; 10-lengthening a wrench; 11-; 12-folding mechanism fixing seats; 13-folding the rod; 14-an adapter rod; 15-wrench head; 16-folding driving seat; 17-a guide post; 18-a guide sleeve; 19-servo electric cylinder of folding mechanism; 20-an electric wrench; 21-; 22-connecting the nut.
For a better understanding of the present embodiments, certain elements of the drawings may be omitted, enlarged or reduced, and do not represent actual product dimensions, and the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.
Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in the present application according to their specific situation.
The present application is described in further detail below with reference to fig. 1 to 5.
Referring to fig. 1, a nut dismounting wrench is connected in an aircraft engine shaft cavity and comprises an electric wrench mechanism 1, a wrench head folding mechanism 2 and a wrench rod positioning mechanism 4.
As shown in fig. 2 and 3, the electric wrench mechanism 1 and the wrench head folding mechanism 2 are arranged in the middle, and the wrench rod positioning mechanism 4 is arranged on the left side of the electric wrench mechanism 1, wherein:
the electric wrench mechanism 1 is used for electrically twisting a connecting nut 22 and comprises an electric wrench 20, a wrench lengthening bar 10 and a wrench head 15;
the wrench head folding mechanism 2 is used for folding a wrench head 15 and comprises a folding mechanism servo electric cylinder 19, a guide sleeve 18, a guide pillar 17, a folding driving seat 16, a folding rod 13, a folding mechanism fixing seat 12 and an adapter rod 14;
the wrench rod positioning mechanism 4 is used for positioning and butting a wrench extension bar 10 and a wrench head 15 and comprises a positioning mechanism servo electric cylinder 5, a positioning mechanism driving seat 6, a positioning mechanism sliding block 7, a positioning mechanism guide rail 8 and a positioning mechanism mounting seat 9.
As shown in fig. 2 and 3, an extension wrench bar 10 is connected to the lower portion of the electric wrench 20, and the extension wrench bar 10 is installed on the folding mechanism fixing base 12 and vertically constrained by means of four fixing guide bases 21.
The positioning mechanism mounting seat 9 is fixed on one side of the base 11, the folding mechanism fixing seat 12 is fixed below the base 11, the folding mechanism servo electric cylinder 19 is fixed on one side of the base 11, two guide sleeves 18 are mounted on the base 11, two guide pillars 17 are mounted in the guide sleeves 18, the two guide pillars 17 are fixed on the folding driving seat 16, the folding driving seat 16 is fixed with an electric cylinder head of the folding mechanism servo electric cylinder 19, the folding driving seat 16 is connected with the folding rod 13 through a pin shaft, meanwhile, the folding rod 13 is vertically constrained through four fixed guide seats 21, the folding rod 13 is connected with the adapter rod 14 through a pin shaft, the adapter rod 14 is connected with the wrench head 15 through a pin shaft, thus, the wrench head 15 is horizontally folded by driving the folding mechanism servo electric cylinder 19, the positioning mechanism servo electric cylinder 5 is driven, the wrench extension rod 10 is operated to move downwards, the outer sleeve teeth at the front end of the extension rod are positioned and butted with the inner sleeve teeth of the wrench head 15, a sleeve is arranged on the wrench head (15) and can be sleeved on the sleeve connecting nut 22, the sleeve and the sleeve teeth of the sleeve and the wrench head (15) can also be provided with gear grains.
As shown in fig. 4, the wrench head folding mechanism 2 is operated to vertically fold the wrench head 15, m is the maximum radial dimension of the wrench extension bar 10 and the wrench head 15, n is the radial dimension of the shaft cavity inlet, and m is required to be less than n, so that the wrench head 15 can smoothly enter the shaft cavity, and collision to the shaft cavity is avoided.
As shown in fig. 5, the wrench head folding mechanism 2 is operated to fold the wrench head 15 horizontally, I is the distance between the wrench extension bar 10 and the axial cavity inlet, p is the eccentric distance of the wrench head 15 for screwing the sleeve, o is the eccentric distance of the connecting nut 22, and l + p > o is required to satisfy the installation position that the wrench head 15 can reach the connecting nut 22.
Above-mentioned aeroengine shaft intracavity coupling nut dismouting spanner when concrete application, can refer to following step and go on:
operating a folding mechanism servo electric cylinder 19 of the wrench head folding mechanism 2 to ensure that the wrench head 15 is completely vertical, so that the wrench head 15 enters a proper position of the shaft cavity;
operating a folding mechanism servo electric cylinder 19 of the wrench head folding mechanism 2 to fold and level the wrench head 15;
operating a positioning mechanism servo electric cylinder 5 of a wrench rod positioning mechanism 4 to enable a wrench lengthening rod 10 to be in positioning butt joint with a wrench head 15;
the sleeve of the wrench head 15 is adjusted to be right above the connecting nut 22 in the horizontal direction and is sleeved on the connecting nut 22;
operating the electric wrench 20 of the electric wrench mechanism 1 to screw the connecting nut 22;
according to the steps, the connecting nuts in the shaft cavity of the aircraft engine are screwed one by one, so that the assembly and disassembly are completed, and the operation is convenient and fast.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.
Claims (3)
1. A wrench for dismounting and mounting a connecting nut in an axial cavity of an aircraft engine is characterized by comprising an electric wrench mechanism (1), a wrench head folding mechanism (2) and a wrench rod positioning mechanism (4),
the electric wrench mechanism (1) is used for electrically twisting the connecting nut (22) and comprises an electric wrench (20), a wrench lengthening bar (10) and a wrench head (15);
the wrench head folding mechanism (2) is used for folding the wrench head (15) and comprises a folding mechanism servo electric cylinder (19), a guide sleeve (18), a guide post (17), a folding driving seat (16), a folding rod (13), a folding mechanism fixing seat (12) and an adapter rod (14);
the wrench rod positioning mechanism (4) is used for positioning and butting the wrench extension rod (10) and the wrench head (15) and comprises a positioning mechanism servo electric cylinder (5), a positioning mechanism driving seat (6), a positioning mechanism sliding block (7), a positioning mechanism guide rail (8) and a positioning mechanism mounting seat (9);
a wrench extension bar (10) is connected below the electric wrench (20);
the wrench extension bar (10) is arranged on a folding mechanism fixing seat (12) and is restrained in the vertical direction by four fixing guide seats (21);
the electric wrench (20) is arranged on the positioning mechanism driving seat (6);
the positioning mechanism driving seat (6) is fixed with an electric cylinder head of the positioning mechanism servo electric cylinder (5) and fixed on a positioning mechanism sliding block (7);
the positioning mechanism sliding block (7) is arranged on the positioning mechanism guide rail (8);
the positioning mechanism guide rail (8) is fixed on the positioning mechanism mounting seat (9);
the positioning mechanism mounting seat (9) is fixed on one side of the base (11);
a folding mechanism fixing seat (12) is fixed below the base (11);
a servo electric cylinder (19) of a folding mechanism is fixed on one side of the base (11), and two guide sleeves (18) are arranged on the servo electric cylinder;
two guide posts (17) are arranged in the two guide sleeves (18);
two guide posts (17) are fixed on the folding driving seat (16);
the folding driving seat (16) is fixedly connected with an electric cylinder head of a servo electric cylinder (19) of the folding mechanism through a pin shaft and a folding rod (13);
the folding rod (13) is vertically constrained through four fixed guide seats (21) and is connected with the adapter rod (14) through a pin shaft;
the adapter rod (14) is connected with the wrench head (15) through a pin shaft;
the wrench head (15) is hinged on the folding mechanism fixing seat (12);
after the wrench head (15) stretches into the shaft cavity, the wrench head can be driven by a folding mechanism servo electric cylinder (19), the wrench head (15) is horizontally folded, and then the wrench head can be driven by a positioning mechanism servo electric cylinder (5), so that the wrench extension bar (10) moves downwards, the outer sleeve teeth at the front end of the wrench extension bar (10) are positioned and butted with the inner sleeve teeth of the wrench head (15), and then the sleeve on the wrench head (15) can be sleeved on a connecting nut (22) through position adjustment, the sleeve is connected with the inner sleeve teeth of the wrench head (15) through insections, and therefore the connecting nut (22) can be screwed through an electric wrench (20).
2. The wrench for dismounting and mounting a nut in a shaft cavity of an aircraft engine according to claim 1,
m＜n；
wherein,
m is the maximum size of the spanner extension bar (10) and the spanner head (15) in the radial direction;
and n is the size of the shaft cavity inlet in the radial direction.
3. The aero-engine shaft cavity coupling nut extractor and extractor wrench as claimed in claim 1,
I+p＞o；
wherein,
i is the allowed distance between the wrench lengthening bar (10) and the shaft cavity inlet when the wrench head (15) extends into the shaft cavity and is horizontally folded;
p is the eccentric distance of a sleeve on the wrench head (15) when the wrench head (15) is horizontally folded after the wrench head (15) extends into the shaft cavity;
o is the eccentric moment of the coupling nut (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211522210.8A CN115741558A (en) | 2022-11-30 | 2022-11-30 | Dismounting wrench for connecting nut in shaft cavity of aircraft engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211522210.8A CN115741558A (en) | 2022-11-30 | 2022-11-30 | Dismounting wrench for connecting nut in shaft cavity of aircraft engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115741558A true CN115741558A (en) | 2023-03-07 |
Family
ID=85342804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211522210.8A Pending CN115741558A (en) | 2022-11-30 | 2022-11-30 | Dismounting wrench for connecting nut in shaft cavity of aircraft engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115741558A (en) |
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2022
- 2022-11-30 CN CN202211522210.8A patent/CN115741558A/en active Pending
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Effective date of registration: 20230602 Address after: Building 3, Tianlong Science Park, No. 1, Zhufeng Road, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province, 215101 Applicant after: Suzhou Haitong Robot System Co.,Ltd. Address before: Shenhe District of Shenyang City, 110015 Wan Lin Road No. 1 in Liaoning Province Applicant before: AECC SHENYANG ENGINE Research Institute |