CN116079656B - Device for disassembling and assembling nut in shaft neck disc cavity of aero-engine rotor - Google Patents
Device for disassembling and assembling nut in shaft neck disc cavity of aero-engine rotor Download PDFInfo
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- CN116079656B CN116079656B CN202211534928.9A CN202211534928A CN116079656B CN 116079656 B CN116079656 B CN 116079656B CN 202211534928 A CN202211534928 A CN 202211534928A CN 116079656 B CN116079656 B CN 116079656B
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- 238000005096 rolling process Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- 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
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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Abstract
The application belongs to the technical field of disassembly and assembly of nuts in a rotor shaft neck disc cavity of an aeroengine, and particularly relates to a disassembly and assembly device of nuts in a rotor shaft neck disc cavity of an aeroengine.
Description
Technical Field
The application belongs to the technical field of disassembly and assembly of nuts in a shaft neck disc cavity of an aero-engine rotor, and particularly relates to a disassembly and assembly device of nuts in a shaft neck disc cavity of an aero-engine rotor.
Background
The aeroengine rotor component is arranged in the stator casing, wherein a plurality of screw rods are fixed on the end face of the rotor drum barrel, corresponding bolt holes are formed in the end face of the rotor shaft neck, each screw rod correspondingly penetrates through one bolt hole to extend into the rotor shaft neck disc cavity, and the screw rods are matched with the nuts to realize connection of the rotor drum barrel and the rotor shaft neck.
At present, many utilize the spanner to dismantle the nut that connects rotor drum, rotor axle journal one by one with the manual work, this kind of technical scheme is when screwing up the nut, easily leads to everywhere pretightning force comparatively dispersedly, makes rotor drum, rotor axle journal produce great local deformation, and because the nut is located the dish intracavity of rotor axle journal, and the whole slender of rotor axle journal, the inner space is narrow and small, is difficult to dismantle the nut.
The present application has been made in view of the above-described technical drawbacks.
It should be noted that the above disclosure of the background art is only for aiding in understanding the inventive concept and technical solution of the present application, which is not necessarily prior art to the present patent application, and should not be used for evaluating the novelty and creativity of the present application in the case where no clear evidence indicates that the above content has been disclosed at the filing date of the present application.
Disclosure of Invention
The application aims to provide a nut dismounting device in a shaft neck disc cavity of an aeroengine rotor, which overcomes or alleviates the technical defects of at least one aspect of the prior art.
The technical scheme of the application is as follows:
an aeroengine rotor journal disk intracavity nut dismounting device, comprising:
the support plate is connected to the stator case and provided with a through hole and four through holes;
The connecting cylinder penetrates through the through hole and extends into the rotor journal disc cavity, the outer wall of one end extending into the rotor journal disc cavity is provided with four through holes distributed along the circumferential direction of the connecting cylinder, and the end face of the other end is provided with two double lugs;
A handle with a slot and a bar-shaped hole; the two side walls of the slot are correspondingly hinged with the two double lugs;
the support is connected to the support plate;
the rolling rod is arranged in the strip-shaped hole and connected with the support;
one end of each torque transmission arm extends into the connecting cylinder from one through hole correspondingly and is hinged with the connecting cylinder, and the end is provided with a torque transmission hole which is in clearance fit with the corresponding through hole;
four wrench heads with wrench holes; each wrench head is correspondingly connected with the other end of one torque transmission arm, and an upper wrench hole of each wrench head is clamped on a nut for connecting a rotor shaft neck and a rotor drum barrel;
The four wrench shafts are correspondingly arranged through one through hole, extend into the connecting cylinder, and are correspondingly inserted into one torque transmission hole at one end of the connecting cylinder and are connected with the corresponding torque transmission hole by tooth patterns; the other ends of the two wrench shafts are provided with ninth bevel gears, and the other ends of the other two wrench shafts are provided with sixteenth bevel gears;
the driving motor is connected to the support plate, and a first bevel gear is arranged on an output shaft of the driving motor;
the first driving rod is supported on the support plate through two supporting sheets, one end of the first driving rod is provided with a second bevel gear, and the other end of the first driving rod is provided with a third bevel gear; the second bevel gear is meshed with the first bevel gear, and two opposite tenth bevel gears are arranged on the second bevel gear through two supporting sheets;
One end of the first connecting rod is hinged with a fourth bevel gear, and the other end of the first connecting rod is hinged with a fifth bevel gear; the fourth bevel gear is supported on the support plate by a supporting sheet and meshed with the third bevel gear; the fifth bevel gear is supported on the support plate through a supporting sheet;
a sixth bevel gear supported on the support plate through support plates and meshed with the fifth bevel gear, wherein two opposite seventh bevel gears are arranged on the sixth bevel gear through two support plates;
the first torsion bar is supported on the support plate by two support plates, one end of the first torsion bar is provided with two seventh bevel gears connected by a connecting rod, and the two seventh bevel gears are meshed with the two seventh bevel gears on the sixth bevel gear; the other end of the first torsion bar is provided with two eighth bevel gears connected through a connecting rod; each eighth bevel gear is correspondingly meshed with one ninth bevel gear;
The second driving rod is supported on the support plate through two supporting sheets, one end of the second driving rod is provided with an eleventh bevel gear, the other end of the second driving rod is provided with two tenth bevel gears connected through a connecting rod, and the two tenth bevel gears are meshed with the two tenth bevel gears on the second bevel gear;
One end of the second connecting rod is hinged with a twelfth bevel gear, and the other end of the second connecting rod is hinged with a thirteenth bevel gear; the twelfth bevel gear is supported on the support plate through the support sheet and meshed with the eleventh bevel gear; the thirteenth bevel gear is supported on the support plate through the support sheet;
A second torsion bar supported on the support plate by two support plates, one end of which is provided with a fourteenth bevel gear; the fourteenth bevel gear is meshed with the thirteenth bevel gear, and two seventeenth bevel gears connected through connecting rods are arranged on the fourteenth bevel gear; one end of the second transmission torsion bar is provided with two fifteenth bevel gears connected through a connecting rod; each fifteenth bevel gear is correspondingly meshed with one sixteenth bevel gear;
The seventeenth bevel gears are connected through connecting rods and supported on the support plate through supporting plates to be meshed with the fifteenth bevel gears on the fourteenth bevel gears.
According to at least one embodiment of the application, in the nut dismounting device in the shaft neck disc cavity of the aeroengine rotor, the support plates are connected through bolts by utilizing bolt holes on the connecting edges of the stator casing.
According to at least one embodiment of the application, in the nut dismounting device in the cavity of the rotor journal disc of the aeroengine, the support plate is connected to the screw rod of the rotor part at the front end of the rotor journal by a screw sleeve through a pin.
According to at least one embodiment of the application, in the nut dismounting device in the shaft neck disc cavity of the aero-engine rotor, the perforation is a special-shaped hole.
According to at least one embodiment of the application, in the nut dismounting device in the shaft neck disc cavity of the aero-engine rotor, two strip-shaped holes are distributed on two side walls of the slot;
each end of the rolling rod correspondingly extends into one strip-shaped hole.
According to at least one embodiment of the application, in the nut dismounting device in the shaft neck disc cavity of the aeroengine rotor, two supports are arranged between the grooves.
According to at least one embodiment of the application, in the nut dismounting device in the shaft neck disc cavity of the aeroengine rotor, the fourth bevel gear and the fifth bevel gear are hinged at the corresponding ends of the first connecting rod through universal hinges;
the twelfth bevel gear and the thirteenth bevel gear are hinged at the corresponding ends of the second connecting rod through universal hinges.
Drawings
FIG. 1 is a schematic application view of a device for dismounting nuts in a journal disc cavity of an aero-engine rotor according to an embodiment of the application;
FIG. 2 is a schematic diagram of a device for dismounting nuts in a shaft neck disc cavity of an aero-engine rotor provided by an embodiment of the application;
FIG. 3 is a partial schematic view of an aircraft engine rotor journal disc intracavity nut removal and installation apparatus provided by an embodiment of the present application;
FIG. 4 is an enlarged view of a portion of an aircraft engine rotor journal disc intracavity nut assembly and disassembly device provided by an embodiment of the present application;
Wherein:
1-supporting plates; 2-stator case; 3-connecting cylinder; 4-rotor journals; 5-a handle; 6-supporting seats; 7-rolling bars; 8-torque transmission arms; 9-wrench head; 10-rotor drum; 11-spanner shaft; 12-driving a motor; 13-a first drive rod; 14-a first connecting rod; 15-sixth bevel gear; 16-a first torsion bar; 17-a second drive rod; 18-a second connecting rod; 19-a second torsion bar; 20-seventeenth bevel gear; 21-nut.
For the purpose of better illustrating the present embodiments, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the actual product dimensions, and furthermore, 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 solution of the present application and its advantages more clear, the technical solution of the present application will be further and completely described in detail with reference to the accompanying drawings, it being understood that the specific embodiments described herein are only some of the embodiments of the present application, which are for explanation of the present application and not for limitation of the present application. It should be noted that, for convenience of description, only the part related to the present application is shown in the drawings, and other related parts may refer to the general design, and the embodiments of the present application and the technical features of the embodiments may be combined with each other to obtain new embodiments without conflict.
Furthermore, unless defined otherwise, technical or scientific terms used in the description of the application should be given the ordinary meaning as understood by one of ordinary skill in the art to which the application pertains. The terms "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," "outer," and the like as used in the description of the present application are merely used for indicating 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 that the relative positional relationships may be changed when the absolute position of the object to be described is changed, thus not being construed as limiting the application. The terms "first," "second," "third," and the like, as used in the description of the present application, are used for descriptive purposes only and are not to be construed as indicating or implying any particular importance to the various components. The use of the terms "a," "an," or "the" and similar referents in the description of the application are not to be construed as limiting the amount absolutely, but rather as existence of at least one. As used in this description of the application, the terms "comprises," "comprising," or the like are intended to cover an element or article that appears before the term as such, but does not exclude other elements or articles from the list of elements or articles that appear after the term.
Furthermore, unless specifically stated and limited otherwise, the terms "mounted," "connected," and the like in the description of the present application are used in a broad sense, and for example, the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can also be communicated with the inside of two elements, and the specific meaning of the two elements can be understood by a person skilled in the art according to specific situations.
The application is described in further detail below with reference to fig. 1 to 4.
An aeroengine rotor journal disk intracavity nut dismounting device, comprising:
the support plate 1 is connected to the stator case 2, and is provided with a perforation and four through holes;
The connecting cylinder 3 penetrates through the through hole and extends into the disc cavity of the rotor shaft neck 4, the outer wall of one end extending into the disc cavity of the rotor shaft neck 4 is provided with four through holes distributed along the circumferential direction of the connecting cylinder, and the end face of the other end is provided with two double lugs;
A handle 5 with a slot and a bar-shaped hole; the two side walls of the slot are correspondingly hinged with the two double lugs;
The support 6 is connected to the support plate 1;
the rolling rod 7 is arranged in the strip-shaped hole and connected with the support 6;
the four torque transmission arms 8, one end of each torque transmission arm 8 correspondingly extends into the connecting cylinder 3 from one through hole and is hinged with the connecting cylinder 3, and the end is provided with a torque transmission hole which is in clearance fit with the corresponding through hole;
four wrench heads 9 having wrench holes; each wrench head 9 is correspondingly connected to the other end of one torque transmission arm 8, and an upper wrench hole of each wrench head is clamped on a nut 21 for connecting the rotor shaft neck 4 and the rotor drum barrel 10;
the four wrench shafts 11 are correspondingly arranged through one through hole, extend into the connecting cylinder 3, and correspondingly insert one end of the connecting cylinder 3 into one torque transmission hole to be connected with the corresponding inter-torque transmission hole insections in a matching way; the other ends of the two wrench shafts 11 are provided with ninth bevel gears, and the other ends of the other two wrench shafts 11 are provided with sixteenth bevel gears;
a driving motor 12 connected to the support plate 1, and having a first bevel gear on its output shaft;
A first driving rod 13 supported on the support plate 1 by two support plates, one end of which is provided with a second bevel gear and the other end of which is provided with a third bevel gear; the second bevel gear is meshed with the first bevel gear, and two opposite tenth bevel gears are arranged on the second bevel gear through two supporting sheets;
A first connecting rod 14, one end of which is hinged with a fourth bevel gear and the other end of which is hinged with a fifth bevel gear; the fourth bevel gear is supported on the support plate 1 by a supporting sheet and meshed with the third bevel gear; the fifth bevel gear is supported on the support plate 1 by a supporting sheet;
A sixth bevel gear 15 supported on the support plate 1 through support pieces and engaged with the fifth bevel gear, on which two opposite seventh bevel gears are provided through two support pieces;
A first torsion bar 16 supported on the support plate 1 by two support pieces, one end of which is provided with two seventh bevel gears connected by a connecting rod, the two seventh bevel gears being engaged with the two seventh bevel gears on the sixth bevel gear 15; the other end of the first torsion bar 16 is provided with two eighth bevel gears connected by a connecting rod; each eighth bevel gear is correspondingly meshed with one ninth bevel gear;
a second driving rod 17 supported on the support plate 1 by two support pieces, one end of which is provided with an eleventh bevel gear, and the other end of which is provided with two tenth bevel gears connected by a connecting rod, the two tenth bevel gears being engaged with the two tenth bevel gears on the second bevel gear;
a second connecting rod 18, one end of which is hinged with a twelfth bevel gear, and the other end of which is hinged with a thirteenth bevel gear; the twelfth bevel gear is supported on the support plate 1 through the supporting sheet and meshed with the eleventh bevel gear; the thirteenth bevel gear is supported on the support plate 1 through the support sheet;
a second torsion bar 19 supported by the support plate 1 with two support pieces, and having a fourteenth bevel gear at one end thereof; the fourteenth bevel gear is meshed with the thirteenth bevel gear, and two seventeenth bevel gears connected through connecting rods are arranged on the fourteenth bevel gear; one end of the second transmission torsion bar 19 is provided with two fifteenth bevel gears connected through a connecting rod; each fifteenth bevel gear is correspondingly meshed with one sixteenth bevel gear;
two seventeenth bevel gears 20 connected by links and supported on the support plate 1 by support pieces are meshed with two fifteenth bevel gears on the fourteenth bevel gears.
For the nut dismounting device in the rotor shaft neck disc cavity of the aeroengine disclosed by the embodiment, as can be understood by a person skilled in the art, the nut dismounting device can form a transmission system by using the first driving rod 13, the first connecting rod 14, the first torsion bar 16, the second driving rod 17, the second connecting rod 18, the second torsion bar 19 and the first to seventeenth bevel gears thereof through the driving motor 12, simultaneously drive the four wrench shafts 11 and the torque arms 8 to rotate, and simultaneously drive the four nuts 21 connected with the rotor shaft neck 4 and the rotor shaft neck 10 through the four wrench heads 9, thereby realizing synchronous dismounting of a plurality of nuts in the rotor shaft neck disc cavity of the aeroengine, being convenient and quick, ensuring uniform pretightening force in all places and avoiding larger local deformation of the rotor shaft neck and the rotor shaft neck when the nuts are screwed.
In the above embodiment, in the process of disassembling and assembling the four nuts 21, the connecting cylinder 3 is pulled tightly by the handle 5 based on the lever principle, so that the four wrenches Kong Baochi are clamped on the four nuts 21 to avoid disengagement, in the process, the rolling rod 7 can roll in the strip-shaped hole to avoid clamping stagnation, after the four nuts 21 are disassembled, the support plate 1 can be separated from the stator case 2, the four wrenching holes are separated from the four nuts 21 which are disassembled, the position angle of the support plate 1 is adjusted and connected with the stator case 2 again, and the four wrenching holes are aligned and clamped on the other four nuts 21 to be disassembled until the disassembly of all the nuts is completed.
For the nut dismounting device in the shaft neck disc cavity of the aeroengine rotor disclosed in the above embodiment, it can be understood by those skilled in the art that the tenth bevel gear assembly, the seventh bevel gear assembly and the seventeenth bevel gear assembly are designed, so that the synchronism and the stability of the operation of the transmission system formed by the first driving rod 13, the first connecting rod 14, the first torsion bar 16, the second driving rod 17, the second connecting rod 18, the second torsion bar 19 and the first to seventeenth bevel gears thereof can be ensured.
Assuming that the driving torque output from the driving motor 12 through the first bevel gear is T1 and the number of teeth of the first to seventeenth bevel gears is n1 to n17, there are:
The ninth bevel gear receives a moment of force of
The sixteenth bevel gear receives a moment of
Based on the above designSo that t9=t16, thereby making the screwing moments for the four nuts 21 uniform.
In some alternative embodiments, in the nut dismounting device in the shaft neck disc cavity of the aeroengine rotor, the support plate 1 is connected by bolts through bolt holes on the connecting edges of the stator casing 2, and the existing structure of the stator casing 2 is not damaged.
In some alternative embodiments, in the nut dismounting device in the cavity of the rotor shaft neck disc of the aeroengine, the support plate 1 is connected to the screw rod of the rotor component at the front end of the rotor shaft neck 4 through the bolts by using the threaded sleeves, the existing structure of the rotor component is not damaged, the front end rotor component of the rotor shaft neck 4 is relatively fixed with the nut 21 for connecting the rotor shaft neck 4 and the rotor drum 10, and the support plate 1 is positioned on the front end rotor component of the rotor shaft neck 4 through the bolts by using the threaded sleeves, so that the positioning of the wrench 9 and the nut 21 in the radial direction can be ensured. .
In some optional embodiments, in the nut dismounting device in the cavity of the journal disc of the aero-engine rotor, the through hole is a special-shaped hole, and the cross section shape of the connecting cylinder 3 matched with the through hole is also special-shaped, specifically, the cross section shape can be square, oval, flat and the like, so that when the nut 21 in the cavity of the journal disc of the aero-engine rotor is screwed, the connecting cylinder 3 is effectively restrained from rotating, and torque generated by screwing the nut 21 is effectively transmitted to the stator case 2 for bearing through the support plate 1. .
In some alternative embodiments, in the nut dismounting device in the shaft neck disc cavity of the aeroengine rotor, two strip-shaped holes are distributed on two side walls of the slot;
each end of the roller 7 extends into a corresponding one of the bar-shaped holes.
In some alternative embodiments, in the above-mentioned nut dismounting device in the cavity of the journal disk of the aeroengine rotor, two supports 6 are arranged between the grooves.
In some alternative embodiments, in the nut dismounting device in the cavity of the journal disc of the aeroengine rotor, the fourth bevel gear and the fifth bevel gear are hinged at the corresponding ends of the first connecting rod 14 through universal hinges;
the twelfth and thirteenth bevel gears are hinged to the corresponding ends of the second connecting rod 18 by universal hinges.
In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred.
Having thus described the technical aspects of the present application with reference to the preferred embodiments shown in the drawings, it should be understood by those skilled in the art that the scope of the present application is not limited to the specific embodiments, and those skilled in the art may make equivalent changes or substitutions to the related technical features without departing from the principle of the present application, and those changes or substitutions will fall within the scope of the present application.
Claims (7)
1. An aeroengine rotor journal disk intracavity nut dismouting device, characterized by comprising:
the support plate (1) is connected to the stator case (2) and is provided with a perforation and four through holes;
The connecting cylinder (3) penetrates through the through hole and extends into the disc cavity of the rotor shaft neck (4), the outer wall of one end extending into the disc cavity of the rotor shaft neck (4) is provided with four through holes distributed along the circumferential direction of the connecting cylinder, and the end face of the other end is provided with two double lugs;
a handle (5) with a slot and a bar-shaped hole; the two side walls of the slot are correspondingly hinged with the two double lugs;
The support (6) is connected to the support plate (1);
the rolling rod (7) is arranged in the strip-shaped hole and connected with the support (6);
The four torque transmission arms (8), one end of each torque transmission arm (8) correspondingly extends into the connecting cylinder (3) from one through hole and is hinged with the connecting cylinder (3), and the end is provided with a torque transmission hole which is in clearance fit with the corresponding through hole;
four wrench heads (9) with wrench holes; each wrench head (9) is correspondingly connected to the other end of one torque transmission arm (8), and an upper wrench hole of each wrench head is clamped on a nut (21) for connecting a rotor shaft neck (4) and a rotor drum barrel (10);
The four wrench shafts (11) are correspondingly arranged through one through hole, extend into the connecting cylinder (3), and correspondingly insert one end of the connecting cylinder (3) into one torque transmission hole to be connected with the corresponding inter-torque transmission hole insections in a matching way; the other ends of the two wrench shafts (11) are provided with ninth bevel gears, and the other ends of the other two wrench shafts (11) are provided with sixteenth bevel gears;
a driving motor (12) connected to the support plate (1), and a first bevel gear is arranged on an output shaft of the driving motor;
a first driving rod (13) supported on the support plate (1) by two support sheets, wherein one end of the first driving rod is provided with a second bevel gear, and the other end of the first driving rod is provided with a third bevel gear; the second bevel gear is meshed with the first bevel gear, and two opposite tenth bevel gears are arranged on the second bevel gear through two supporting sheets;
A first connecting rod (14) with one end hinged with a fourth bevel gear and the other end hinged with a fifth bevel gear; the fourth bevel gear is supported on the support plate (1) by a supporting sheet and meshed with the third bevel gear;
the fifth bevel gear is supported on the support plate (1) by a supporting sheet;
a sixth bevel gear (15) supported on the support plate (1) through support plates and meshed with the fifth bevel gear, wherein two opposite seventh bevel gears are arranged on the sixth bevel gear through two support plates;
A first torsion transmission bar (16) supported on the support plate (1) by two support plates, one end of the first torsion transmission bar is provided with two seventh bevel gears connected by a connecting rod, and the two seventh bevel gears are meshed with the two seventh bevel gears on the sixth bevel gear (15); the other end of the first torsion bar (16) is provided with two eighth bevel gears connected through a connecting rod; each eighth bevel gear is correspondingly meshed with one ninth bevel gear;
A second driving rod (17) supported on the support plate (1) by two support plates, wherein one end of the second driving rod is provided with an eleventh bevel gear, the other end of the second driving rod is provided with two tenth bevel gears connected by a connecting rod, and the two tenth bevel gears are meshed with the two tenth bevel gears on the second bevel gear;
A second connecting rod (18) with one end hinged with a twelfth bevel gear and the other end hinged with a thirteenth bevel gear; the twelfth bevel gear is supported on the support plate (1) through the support sheet and meshed with the eleventh bevel gear; the thirteenth bevel gear is supported on the support plate (1) through the support sheet;
A second transmission torsion bar (19) supported on the support plate (1) by two support plates, and one end of the second transmission torsion bar is provided with a fourteenth bevel gear; the fourteenth bevel gear is meshed with the thirteenth bevel gear, and two seventeenth bevel gears connected through connecting rods are arranged on the fourteenth bevel gear; one end of the second transmission torsion bar (19) is provided with two fifteenth bevel gears connected through a connecting rod; each fifteenth bevel gear is correspondingly meshed with one sixteenth bevel gear;
Two seventeenth bevel gears (20) are connected through connecting rods and supported on the support plate (1) through supporting sheets to be meshed with the two fifteenth bevel gears on the fourteenth bevel gears.
2. The device for dismounting and mounting nuts in a shaft neck disc cavity of an aeroengine rotor according to claim 1, wherein,
The support plates (1) are connected through bolts by utilizing bolt holes on the connecting edges of the stator casing (2).
3. The device for dismounting and mounting nuts in a shaft neck disc cavity of an aeroengine rotor according to claim 1, wherein,
The support plate (1) is connected with a screw rod of a rotor part at the front end of the rotor journal (4) through a pin by using a screw sleeve.
4. The device for dismounting and mounting nuts in a shaft neck disc cavity of an aeroengine rotor according to claim 1, wherein,
The perforation is a special-shaped hole.
5. The device for dismounting and mounting nuts in a shaft neck disc cavity of an aeroengine rotor according to claim 1, wherein,
Two strip-shaped holes are distributed on two side walls of the slot;
Each end of the rolling rod (7) correspondingly extends into one strip-shaped hole.
6. The device for dismounting and mounting nuts in a shaft neck disc cavity of an aeroengine rotor according to claim 1, wherein,
The number of the supports (6) is two, and the supports are positioned between the grooves.
7. The device for dismounting and mounting nuts in a shaft neck disc cavity of an aeroengine rotor according to claim 1, wherein,
The fourth bevel gear and the fifth bevel gear are hinged at the corresponding ends of the first connecting rod (14) through universal hinges;
The twelfth bevel gear and the thirteenth bevel gear are hinged at the corresponding ends of the second connecting rod (18) through universal hinges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211534928.9A CN116079656B (en) | 2022-11-30 | 2022-11-30 | Device for disassembling and assembling nut in shaft neck disc cavity of aero-engine rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211534928.9A CN116079656B (en) | 2022-11-30 | 2022-11-30 | Device for disassembling and assembling nut in shaft neck disc cavity of aero-engine rotor |
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| Publication Number | Publication Date |
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| CN116079656A CN116079656A (en) | 2023-05-09 |
| CN116079656B true CN116079656B (en) | 2024-05-17 |
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| CN202211534928.9A Active CN116079656B (en) | 2022-11-30 | 2022-11-30 | Device for disassembling and assembling nut in shaft neck disc cavity of aero-engine rotor |
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| CN112719866A (en) * | 2020-12-22 | 2021-04-30 | 中国航发沈阳发动机研究所 | Bolt screwing connecting device and method for screwing connecting bolt in rotor journal disc cavity |
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| US10821496B2 (en) * | 2018-03-16 | 2020-11-03 | The Boeing Company | Offset fastener installation system |
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