CN114800364B - Device for disassembling bushing and use method thereof - Google Patents
Device for disassembling bushing and use method thereof Download PDFInfo
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- CN114800364B CN114800364B CN202210471706.0A CN202210471706A CN114800364B CN 114800364 B CN114800364 B CN 114800364B CN 202210471706 A CN202210471706 A CN 202210471706A CN 114800364 B CN114800364 B CN 114800364B
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- bushing
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- mandrel
- slotted sleeve
- shoulder
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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
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- Mechanical Engineering (AREA)
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- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The invention belongs to the field of maintenance of aviation products, and relates to a device for disassembling a bushing and a use method thereof. The invention has simple structure, safety, reliability and good practicability, can safely and quickly detach the bushing, and avoids the hidden trouble of damaging the part matrix. The invention does not need special technical equipment support, is convenient to operate, and is particularly suitable for disassembling the part structure of the two bushings oppositely pressed in one lug and disassembling the bushings in the blind holes. Is especially suitable for the external field accident conditions. The whole design scheme is easy to popularize and apply, and has great practical value. The bush with different diameters can be manufactured into a whole set of tools with different specifications to form a tool bag, and the tool bag can be suitable for disassembling all similar bushes.
Description
Technical Field
The invention belongs to the field of maintenance of aviation products, and relates to a device for disassembling a bushing and a use method thereof.
Background
The condition of bushing replacement is frequently encountered in the process of maintenance and troubleshooting of an aircraft outfield, and the problems of small operable range, insufficient various devices and tools and the like exist in the process of bushing replacement of the outfield. For the assembly mode of pressing two bushings with shoulder or blind holes with bushings in a single lug hole, the operation of replacing the bushings on a production line is extremely difficult, and special equipment and tools are required to complete the replacement operation. In the external field environment, various devices and convenient conditions are lacking, and the bushing can be generally dismounted only by adopting a clamp destructive polishing or bushing inner hole tapping mode, so that the bottom hole of the part is extremely easy to damage. Once the part matrix is damaged, it may result in rejection of the entire large part, resulting in significant losses. The scheme of the invention is provided against the technical background.
Disclosure of Invention
In order to solve the problem of difficult sleeve withdrawal and replacement in an external field of an airplane and avoid potential safety hazards of products, the invention provides a special sleeve withdrawal device and a use method thereof, which are used for solving the problems. The invention can ensure that the bushing is safely and quickly detached without damaging the part matrix. In consideration of the characteristics of insufficient equipment and small operation space in the outfield, the invention has the advantages of simple integral structure, convenient use and no need of special equipment support, and is particularly suitable for the outfield maintenance working environment.
The technical scheme of the invention is as follows:
a device for disassembling a bushing comprises a slotted sleeve, a threaded mandrel, a supporting sleeve, a gasket, a nut and a sleeve withdrawing mandrel.
The slotted sleeve is divided into four parts of structures, which are respectively: the device comprises an outer hexagonal clamping part, an inner and outer bidirectional thread part, a middle positioning part and a tapered slotting shoulder part.
The inner diameter of the bushing to be disassembled is used as a guide in working and is matched with the polish rod part of the sleeve. The lowest end of the device is in a taper slotting shoulder structure in a free state, and the device is opened into a straight cylindrical structure in working. The periphery of the structure is provided with a plurality of groups of slots and crack-stopping holes, and the left slot and the right slot are staggered so as to lead the tension force to be uniform. The concrete structure comprises:
the uppermost part of the outer hexagonal clamping part is of a hexagonal table structure, and a wrench is used for fixing the sleeve during operation, so that the sleeve returning device is prevented from rotating relative to the part.
The external threads of the inner and outer bidirectional thread parts are used for being connected with nuts, and the slotted sleeve and the bushing to be disassembled are driven to move upwards through the rotation of the nuts, so that the bushing is disassembled. The internal threads of the internal and external bi-directional threaded portions are connected to a threaded spindle. After the threaded mandrel is screwed with the internal thread of the slotted sleeve, the tapered slotted structure below the slotted sleeve is expanded by rotating the threaded mandrel, so that the shoulder structure at the lowest part of the slotted sleeve is ensured to hook the lower end surface of the bushing, and the preparation work is completed 。
The middle positioning part is of a hollow shaft structure, and the inner diameter and the outer diameter are smooth cylindrical surfaces, so that the functions of positioning and guiding are achieved. The outer cylindrical structure adopts 0.1mm clearance fit with the inner diameter of the bushing to be disassembled, namely: the inner diameter of the bushing is a, and the outer cylinder diameter of the slotted sleeve is b=mm. The inner hole diameter c is 6mm smaller than the outer cylinder diameter b, namely the wall thickness of the slotted sleeve is 3mm. The thickness can ensure the strength requirement and is beneficial to realizing the structure deformation function. The inner bore portion thereof mates with the smooth cylindrical portion of the threaded spindle, guiding the threaded spindle to rotate in the axial direction. The diameter of the inner hole is smaller than the diameter of the internal thread by more than 0.2mm, so that interference is avoided.
The tapered slotted shoulder portion comprises a shoulder structure and a slotted structure, and the slots of the slotted shoulder portion are uniformly distributed along the circumferential direction of the sleeve at a distance. The gap adopts wire cutting processing, and gap width is 1mm. The gap is provided with a long gap and a short gap which are alternately arranged, and a crack stopper with diameter phi 2 is arranged at the tail end of the gap. When the slotted sleeve is not used, the bottommost end of the slotted sleeve is a taper structure in a natural shrinkage state. The end of the tapered surface is provided with a convex shoulder structure, and the convex shoulder end surface is perpendicular to the tapered surface. The maximum diameter of the shoulder is required to be smaller than the inner diameter of the bushing to be disassembled by 0.5mm-1mm, so that the shoulder is prevented from scratching the part matrix hole when the bushing disassembling work is carried out.
The threaded mandrel is divided into a three-part structure: the device is respectively provided with an external thread part, a guiding part and a taper part. The external thread part is matched with the internal thread of the slotted sleeve, the guiding part is matched with the inner hole part of the slotted sleeve, and the taper part is matched with the taper structure below the slotted sleeve. During operation, the split sleeve is fixed by using the open end wrench, then the inner hexagonal wrench is inserted into the inner hexagonal structure at the top of the threaded mandrel, and the threaded mandrel is moved downwards by rotating the inner hexagonal wrench, so that the split structure of the split sleeve is expanded.
The shrink sleeve mandrel is used to remove a second liner. The cylinder size at the lower end of the mandrel is 0.1mm smaller than the inner diameter of the bushing; the upper end cylinder of the mandrel is 0.1mm smaller than the bottom hole of the lug. The component is not used when the blind hole bushing is disassembled.
An apparatus for removing a liner and method of use thereof, comprising the steps of:
step one: preparation: the parts of the bushing to be replaced are disassembled and stably placed. Ensure the open ear piece and is convenient for operation. And a cushion block is added at the necessary position to prevent the component from shaking or moving during working.
Step two: the threaded mandrel is installed into the slotted sleeve and the threads are threaded. The threaded mandrel is rotated by hand until the threaded mandrel cannot rotate, and the tapered surface of the threaded mandrel is basically attached to the tapered surface in the slotted sleeve.
Step three: the combination is inserted into the lug bush hole, and the shoulder part of the slotted sleeve is preliminarily ensured to be aligned with the middle gap position of the two opposite-pressing bushes.
Step four: and fixing the slotted sleeve by using an open spanner, and inserting the inner hexagonal spanner into an inner hexagonal structure at the top of the threaded mandrel. The inner hexagonal wrench is rotated to enable the threaded mandrel to move downwards, and then the conical structure at the lower end of the slotted sleeve is expanded. As the tapered structure of the lower end of the slotted sleeve expands, the shoulder surface will first touch the inner surface of the bushing. At the moment, the slotted sleeve can be moved up and down, and the position of the shoulder aligned with the middle gap of the two opposite-pressing bushings can be determined when the stress is minimum.
Step five: and continuing to rotate the threaded mandrel to fully expand the conical structure at the lower end of the slotted sleeve, and hooking the end face of the bushing to be disassembled by the shoulder part at the moment.
Step six: the support sleeve is arranged on the slotted sleeve, and the gasket and the nut are arranged.
Step seven: the split sleeve is fixed by using an open spanner, and the nut is continuously screwed by using an open spanner. Along with the continuous upward movement of the slotted sleeve, the bushing is driven to move outwards until the bushing is separated from the lug and falls into the inner cavity of the supporting sleeve, so that the first bushing is disassembled.
Step eight: the sleeve withdrawing mandrel is inserted into the lug bottom hole, and the small cylindrical part is inserted into the inner hole of the bushing. The sleeve withdrawing mandrel takes the lug bottom hole and the inner hole of the second bushing as references, and the second bushing is outwards moved by hammering the end face of the sleeve withdrawing mandrel until the bushing is separated from the lug, so that the second bushing is disassembled. The disassembly of all the bushings is completed.
The invention has the beneficial effects that:
the invention has simple structure, safety, reliability and good practicability, can safely and quickly detach the bushing, and avoids the hidden trouble of damaging the part matrix. The invention does not need special technical equipment support, is convenient to operate, and is particularly suitable for disassembling the part structure of the two bushings oppositely pressed in one lug and disassembling the bushings in the blind holes. Is especially suitable for the external field accident conditions. The whole design scheme is easy to popularize and apply, and has great practical value. The bush with different diameters can be manufactured into a whole set of tools with different specifications to form a tool bag, and the tool bag can be suitable for disassembling all similar bushes.
Drawings
FIG. 1 is a schematic illustration of a specific application of the invention;
fig. 2 is an exploded view of the major components of the ejector sleeve.
In the figure: 1, a part matrix; 2 shoulder bushing; 3, slotting the sleeve; 4, supporting the sleeve; 5, a gasket; 6, a nut; 7, a threaded mandrel; and 8, withdrawing the sleeve mandrel.
Detailed Description
Embodiments of the present invention will be described in detail below, the nature of the implementations being illustrated in the drawings, wherein like reference numerals refer to like elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention and are not to be construed as limiting the present invention.
Example 1:
a device for disassembling a bushing comprises a slotted sleeve 3, a threaded mandrel 7, a support sleeve 4, a gasket 5, a nut 6 and a sleeve withdrawing mandrel 8.
The slotted sleeve 3 is divided into four parts, namely: the device comprises an outer hexagonal clamping part, an inner and outer bidirectional thread part, a middle positioning part and a tapered slotting shoulder part.
The inner diameter of the bushing to be disassembled is used as a guide in working and is matched with the polish rod part of the sleeve. The lowest end of the device is in a taper slotting shoulder structure in a free state, and the device is opened into a straight cylindrical structure in working. The periphery of the structure is provided with a plurality of groups of slots and crack-stopping holes, and the left slot and the right slot are staggered so as to lead the tension force to be uniform. The concrete structure comprises:
the uppermost part of the outer hexagonal clamping part is of a hexagonal table structure, and a wrench is used for fixing the sleeve during operation, so that the sleeve returning device is prevented from rotating relative to the part.
The external thread of the inner and outer bidirectional thread parts is used for being connected with a nut 6, and the nut 6 rotates to drive the slotted sleeve 3 and the bushing to be disassembled to move upwards, so that the bushing is disassembled. The internal thread of the internal and external bi-directional threaded portion is connected to a threaded spindle 7. After the threaded mandrel 7 is screwed with the internal thread of the slotted sleeve 3, the threaded mandrel passes throughRotating the threaded mandrel 7 to expand the tapered slotting structure below the slotting sleeve 3, ensuring that the shoulder structure at the lowest part of the slotting sleeve 3 hooks the lower end surface of the bushing, and completing the preparation work 。
The middle positioning part is of a hollow shaft structure, and the inner diameter and the outer diameter are smooth cylindrical surfaces, so that the functions of positioning and guiding are achieved. The outer cylindrical structure adopts 0.1mm clearance fit with the inner diameter of the bushing to be disassembled, namely: the inner diameter of the bushing is a, and the diameter of the outer cylinder of the slotted sleeve 3 is b=a-0.1 mm. The inner hole diameter c is 6mm smaller than the outer cylinder diameter b, namely the wall thickness of the slotted sleeve 3 is 3mm. The thickness can ensure the strength requirement and is beneficial to realizing the structure deformation function. The inner hole portion of which cooperates with a smooth cylindrical portion of the threaded spindle 7, guiding the threaded spindle 7 to rotate in the axial direction. The diameter of the inner hole is smaller than the diameter of the internal thread by more than 0.2mm, so that interference is avoided.
The tapered slotted shoulder portion comprises a shoulder structure and a slotted structure, and the slots of the slotted shoulder portion are uniformly distributed along the circumferential direction of the sleeve at a distance. The gap adopts wire cutting processing, and gap width is 1mm. The gap is provided with a long gap and a short gap which are alternately arranged, and a crack stopper with diameter phi 2 is arranged at the tail end of the gap. When the slotted sleeve 3 is not used, the lowest end of the slotted sleeve is in a taper structure in a natural shrinkage state. The end of the tapered surface is provided with a convex shoulder structure, and the convex shoulder end surface is perpendicular to the tapered surface. The maximum diameter of the shoulder is required to be smaller than the inner diameter of the bushing to be disassembled by 0.5mm-1mm, so that the shoulder is prevented from scratching the part matrix hole when the bushing disassembling work is carried out.
The threaded spindle 7 is divided into a three-part structure: the device is respectively provided with an external thread part, a guiding part and a taper part. The external thread part is matched with the internal thread of the slotted sleeve 3, the guiding part is matched with the inner hole part of the slotted sleeve 3, and the taper part is matched with the taper structure below the slotted sleeve 3. During operation, the split sleeve 3 needs to be fixed by using an open end wrench, then the inner hexagonal wrench is inserted into the inner hexagonal structure at the top of the threaded mandrel 7, and the threaded mandrel 7 is moved downwards by rotating the inner hexagonal wrench, so that the split structure of the split sleeve 3 is expanded.
The shrink sleeve mandrel 8 is used to remove the second liner. The cylinder size at the lower end of the mandrel is 0.1mm smaller than the inner diameter of the bushing; the upper end cylinder of the mandrel is 0.1mm smaller than the bottom hole of the lug. The component is not used when the blind hole bushing is disassembled.
Example 2:
taking the two bushing structures of the lug plate shown in fig. 1 as an example, the specific implementation steps of the scheme of the invention are given:
an apparatus for removing a liner and method of use thereof, comprising the steps of:
step one: preparation: the parts of the bushing to be replaced are disassembled and stably placed. Ensure the open ear piece and is convenient for operation. And a cushion block is added at the necessary position to prevent the component from shaking or moving during working.
Step two: a threaded mandrel 7 is fitted into the slotted sleeve 3 and the threads are screwed. The threaded spindle 7 is rotated by hand until it is not rotated, at which time the tapered surface of the threaded spindle 7 substantially conforms to the tapered surface of the split sleeve 3.
Step three: the combination is inserted into the lug bush hole, and the shoulder part of the slotted sleeve 3 is preliminarily ensured to be aligned with the middle gap position of the two opposite-pressing bushes.
Step four: the split sleeve 3 is secured using an open ended wrench, which is inserted into the socket head cap structure on top of the threaded spindle 7. The socket head wrench is rotated to move the threaded spindle 7 downward, and the tapered structure of the lower end of the split sleeve 3 is further expanded. As the conical structure of the lower end of the slotted sleeve 3 expands, the shoulder surface will first touch the inner surface of the bushing. At the moment, the slotted sleeve 3 can be moved up and down, and the position of the shoulder aligned with the middle gap of the two opposite-pressing bushings can be determined when the stress is minimum.
Step five: the threaded mandrel 7 is continuously rotated to enable the conical structure at the lower end of the slotted sleeve 3 to be fully expanded, and the shoulder part hooks the end face of the bushing to be disassembled.
Step six: the support sleeve 4 is mounted on the slotted sleeve 3 and a washer 5 and nut 6 are mounted.
Step seven: the split sleeve 3 is fixed using an open-ended wrench, alternatively a nut 6 is continuously tightened using an open-ended wrench. Along with the continuous upward movement of the slotted sleeve 3, the bushing is driven to move outwards until the bushing is separated from the lug and falls into the inner cavity of the supporting sleeve 4, so that the first bushing is dismounted.
Step eight: the sleeve withdrawing mandrel 8 is inserted into the lug bottom hole, and the small cylindrical part is inserted into the inner hole of the bushing. The sleeve withdrawing mandrel 8 takes the lug bottom hole and the inner hole of the second bushing as references, and the second bushing is outwards moved by hammering the end surface of the sleeve withdrawing mandrel 8 until the bushing is separated from the lug, so that the second bushing is disassembled. The disassembly of all the bushings is completed.
Claims (5)
1. A device for disassembling a bushing is characterized by comprising a slotted sleeve (3), a threaded mandrel (7), a supporting sleeve (4), a nut (6) and a sleeve withdrawing mandrel (8);
the slotted sleeve (3) is divided into four parts of structures, namely: an outer hexagonal clamping part, an inner and outer bidirectional thread part, a middle positioning part and a slotted shoulder part with taper;
the uppermost part of the outer hexagonal clamping part is of a hexagonal table structure, and a wrench is used for fixing the sleeve during operation, so that the sleeve returning is prevented from rotating relative to the part;
the external thread of the inner and outer bidirectional thread parts is used for being connected with a nut (6), and the nut (6) rotates to drive the slotted sleeve (3) and the bushing to be disassembled to move upwards so as to disassemble the bushing; the internal thread of the internal and external bidirectional thread parts is connected with a thread mandrel (7); after the threaded mandrel (7) is screwed with the internal thread of the slotted sleeve (3), the tapered slotted structure below the slotted sleeve (3) is expanded by rotating the threaded mandrel (7), so that the shoulder structure at the lowest part of the slotted sleeve (3) is ensured to hook the lower end surface of the bushing, and the preparation work is completed ；
The middle positioning part is of a hollow shaft structure, and the inner diameter and the outer diameter are smooth cylindrical surfaces and play roles in positioning and guiding; the inner hole part of the screw mandrel is matched with the smooth cylindrical part of the screw mandrel (7), and the screw mandrel (7) is guided to rotate along the axial direction;
the tapered slotting shoulder part comprises a shoulder structure and a slotting structure, and the slots of the slotting structure are uniformly distributed along the circumferential direction of the sleeve at a distance; the end of the tapered surface is provided with a convex shoulder structure, and the end face of the convex shoulder is perpendicular to the tapered surface;
the thread mandrel (7) comprises an external thread part, a guiding part and a taper part; the external thread part is matched with the internal thread of the slotted sleeve (3), the guiding part is matched with the inner hole part of the slotted sleeve (3), and the taper part is matched with the taper structure below the slotted sleeve (3);
the sleeve-withdrawing mandrel (8) is used for detaching the second bushing.
2. A device for removing a bushing according to claim 1, wherein the outer cylindrical structure of the intermediate positioning portion is in a 0.1mm clearance fit with the inner diameter of the bushing to be removed, namely: the inner diameter size of the bushing is a, and the diameter size of the outer cylinder of the slotted sleeve (3) is b= (a-0.1) mm; the inner hole diameter c is 6mm smaller than the outer cylinder diameter b; the diameter of the inner hole of the middle positioning part is smaller than the diameter of the inner thread by more than 0.2mm, so that interference is avoided.
3. A device for removing a bushing as claimed in claim 1 or 2 wherein said tapered split shoulder portion has a split structure slot width of 1mm; the gaps are long and short, and the long and short gaps are alternately arranged and are arranged at the tail ends of the gapsDiameter crack-stopping hole; the maximum diameter of the shoulder is required to be smaller than the inner diameter of the bushing to be disassembled by 0.5mm-1mm, so that the shoulder is prevented from scratching the part matrix hole when the bushing disassembling work is carried out.
4. A device for removing bushings according to claim 1 or 2, characterized in that the lower cylindrical dimension of the bushing-withdrawing mandrel (8) is smaller than the inner diameter of the bushing by 0.1mm; the upper end cylinder of the mandrel is 0.1mm smaller than the bottom hole of the lug.
5. A method of using a device for removing a bushing as claimed in any one of claims 1 to 4, comprising the steps of:
step one: preparation: removing the parts of the bushing to be replaced and stably placing the parts; the open ear piece part is ensured and the operation is convenient;
step two: loading a threaded mandrel (7) into the slotted sleeve (3) and screwing the threads; rotating the threaded mandrel (7) by hand until the threaded mandrel cannot rotate, wherein the taper surface of the threaded mandrel (7) is basically attached to the inner taper surface of the slotted sleeve (3);
step three: inserting a bushing dismounting device into the lug bushing hole, and preliminarily ensuring that the shoulder part of the slotted sleeve (3) is aligned with the middle gap position of the two opposite-pressing bushings;
step four: using an open-end wrench to fix the slotted sleeve (3), and inserting an inner hexagonal wrench into an inner hexagonal structure at the top of the threaded mandrel (7); rotating the inner hexagonal wrench to enable the threaded mandrel (7) to move downwards, and further expanding the conical structure at the lower end of the slotted sleeve (3); as the conical structure at the lower end of the slotted sleeve (3) is expanded, the shoulder surface firstly touches the inner surface of the bushing; at the moment, the slotted sleeve (3) can be moved up and down, and the position of the shoulder aligned with the middle gap of the two opposite-pressing bushings can be determined when the stress is minimum;
step five: continuing to rotate the threaded mandrel (7) to enable the conical structure at the lower end of the slotted sleeve (3) to be fully expanded, and enabling the shoulder part to hook the end face of the bushing to be disassembled at the moment;
step six: the support sleeve (4) is arranged on the slotted sleeve (3), and a gasket (5) and a nut (6) are arranged;
step seven: using an open spanner to fix the slotted sleeve (3), and alternatively using an open spanner to continuously tighten the nut (6); along with the continuous upward movement of the slotted sleeve (3), the bushing is driven to move outwards of the hole until the bushing is separated from the lug and falls into the inner cavity of the supporting sleeve (4), so that the first bushing is dismounted;
step eight: inserting the sleeve withdrawing mandrel (8) into the lug bottom hole, and inserting the small cylindrical part into the inner hole of the bushing; the sleeve withdrawing mandrel (8) takes the lug bottom hole and the inner hole of the second bushing as references, and the second bushing is outwards moved by hammering the end surface of the sleeve withdrawing mandrel (8) until the bushing is separated from the lug, so that the second bushing is disassembled; the disassembly of all the bushings is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210471706.0A CN114800364B (en) | 2022-04-29 | 2022-04-29 | Device for disassembling bushing and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210471706.0A CN114800364B (en) | 2022-04-29 | 2022-04-29 | Device for disassembling bushing and use method thereof |
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| Publication Number | Publication Date |
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| CN114800364A CN114800364A (en) | 2022-07-29 |
| CN114800364B true CN114800364B (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210471706.0A Active CN114800364B (en) | 2022-04-29 | 2022-04-29 | Device for disassembling bushing and use method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119589605B (en) * | 2024-12-24 | 2026-02-03 | 宜宾三江机械有限责任公司 | Preassembling tool for slotted bushing and using method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2637100A1 (en) * | 2006-01-11 | 2007-07-19 | Fatigue Technology, Inc. | Bushing kits, bearings, and methods of installation |
| CN102615623A (en) * | 2012-04-19 | 2012-08-01 | 西安飞机工业（集团）有限责任公司 | Mounting and dismounting tool for bush with double lug holes |
| CN214980680U (en) * | 2021-04-23 | 2021-12-03 | 江苏新扬新材料股份有限公司 | Aircraft intersection lug bush removing tool |
-
2022
- 2022-04-29 CN CN202210471706.0A patent/CN114800364B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2637100A1 (en) * | 2006-01-11 | 2007-07-19 | Fatigue Technology, Inc. | Bushing kits, bearings, and methods of installation |
| CN102615623A (en) * | 2012-04-19 | 2012-08-01 | 西安飞机工业（集团）有限责任公司 | Mounting and dismounting tool for bush with double lug holes |
| CN214980680U (en) * | 2021-04-23 | 2021-12-03 | 江苏新扬新材料股份有限公司 | Aircraft intersection lug bush removing tool |
Non-Patent Citations (1)
| Title |
|---|
| 张建超 ; .开缝衬套挤压技术在飞机维修中的应用.民用飞机设计与研究.2008,(第03期),45-51. * |
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