CN113843748B - Lock nut assembly tool assembly for maintaining airplane actuator cylinder - Google Patents
Lock nut assembly tool assembly for maintaining airplane actuator cylinder Download PDFInfo
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- CN113843748B CN113843748B CN202111240933.4A CN202111240933A CN113843748B CN 113843748 B CN113843748 B CN 113843748B CN 202111240933 A CN202111240933 A CN 202111240933A CN 113843748 B CN113843748 B CN 113843748B
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- hole
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- connecting rod
- safety
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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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- 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
- B25B27/143—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 for installing wire thread inserts or tubular threaded inserts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The invention discloses a locking nut assembly tool assembly for maintaining an airplane actuator cylinder, which comprises a sleeve, wherein the lower end of the sleeve is provided with four positioning claws, the side surface of the upper end of the sleeve is provided with positioning through holes, and the positions of the positioning through holes correspond to the positions of the positioning claws up and down; the connecting rod is sleeved in the sleeve, a first through hole with an open upper end is formed in the connecting rod, a groove is further formed in the side face of the top end of the connecting rod, a side through hole is formed in the side face of the lower end of the connecting rod, the groove vertically corresponds to the side through hole, a positioning ball is further arranged in the side through hole, and a pin rod is horizontally inserted into the positioning through hole. When the piston locking nut is installed, the positioning ball is clamped in the safety hole of the safety bush, the sleeve is sleeved outside the connecting rod, after the sleeve is rotated, when the positioning through hole is opposite to the groove, the pin rod of the indicating pin can penetrate into the groove and the first through hole, and the safety groove corresponds to the position of the safety hole, so that the piston locking nut is quickly assembled.
Description
Technical Field
The invention relates to the technical field of aircraft actuator cylinder repair, in particular to a lock nut assembly tool assembly for aircraft actuator cylinder repair.
Background
When assembling the components such as a lock nut and the like in the cylinder type piston of the actuating cylinder, firstly, the safety bushing is positioned on the piston rod through a key with a raised bottom and is kept relatively immovable with the piston rod, and seven safety holes are arranged on the outer wall of the safety bushing. And then, a locking nut is arranged on the end part thread of the piston rod, the upper end of the safety bushing is limited and fixed, and the piston safety nut is a four-safety-groove nut. The torque requirement during installation is 112-168N.m, and according to the requirement of subsequent installation, after the installation, a safety groove on the lock nut is required to be completely aligned with a safety hole on the safety lining, so that the subsequent safety bolt can pass through the safety groove and the safety hole to be connected with the safety nut, and the lock nut and the safety lining are fixed.
When assembling, because lock nut's moment is great, be difficult to accurate control lock nut's turned angle, can't control the tolerance of adjusting well of insurance hole and safe groove, the insurance bush insurance hole of the inside of cartridge type piston is adjusted well the condition with lock nut's safe groove and is adjusted well and can't be seen, even see also can't guarantee to adjust well in the tight operation time slot of big moment pound, the non-deviation in hole, need continuous correction, survey, try on the safety bolt and just can guarantee to install in place, it is complicated to work, inefficiency. And whole process need be in the operation of cylinder type piston intracavity, and the space is narrow and small, is difficult to observe, mostly needs two people to operate and constantly tries with the bolt and can penetrate, and is very hard, for this reason, we provide a lock nut assembly fixture subassembly for aircraft pressurized strut maintenance.
Disclosure of Invention
The invention solves the technical problem that the alignment of the safety hole of the safety bush and the safety groove of the lock nut is inconvenient when the internal parts of the cylinder type piston are assembled in the prior art, and provides the lock nut assembling tool assembly for the maintenance of the aircraft actuator cylinder.
In order to achieve the purpose, the invention provides the following technical scheme: a locking nut assembly tool assembly for maintaining an airplane actuator cylinder comprises a sleeve, wherein a hexagonal head is mounted at the upper end of the sleeve, a user can conveniently rotate the sleeve, four positioning claws are arranged at the lower end of the sleeve and are inserted into four safety slots in a piston locking nut for positioning, positioning through holes are formed in the side face of the upper end of the sleeve, and the positions of the positioning through holes correspond to the positions of the positioning claws up and down; a connecting rod is sleeved in the sleeve, a first through hole with an opening at the upper end is formed in the connecting rod, a groove is further formed in the side face of the top end of the connecting rod, the position of the groove can correspond to the position of the positioning through hole after the connecting rod is rotated, an internal thread portion is arranged in the middle of the first through hole, a side through hole is formed in the side face of the lower end of the connecting rod, the positions of the groove and the side through hole vertically correspond, the side through hole is communicated with the lower end of the first through hole, and a positioning ball is further arranged in the side through hole; a locking ejector rod is screwed in the inner thread part in the first through hole, the lower end of the locking ejector rod is a round head, and the lower end of the locking ejector rod is inserted into the side through hole;
a pin rod is horizontally inserted into the positioning through hole, an indicating pin is installed at the outer end of the pin rod, a through hole is formed in the outer end of the indicating pin, one end of a rubber band penetrates through the through hole, and the other end of the rubber band is sleeved outside the upper end of the sleeve.
Preferably, the upper end of the locking ejector rod is provided with a cross groove, so that a user can conveniently screw the locking ejector rod through a cross screwdriver.
Preferably, the opening position of the side through hole is a closing type, and the positioning ball in the side through hole is prevented from rolling out.
Preferably, the lower extreme lateral surface of connecting rod is provided with the nylon cover, and the nylon cover, nylon cover play the effect of support to reduce the wearing and tearing to the bush fuse.
Compared with the prior art, the invention has the beneficial effects that:
when a piston lock nut and accessories thereof in a cylinder type piston of an actuator cylinder are installed, firstly, the cylinder type piston, the piston lock nut, a safety bushing and a piston rod are assembled together, the piston lock nut is in threaded connection with the upper end of the piston rod, then the piston rod and the end below the piston rod are clamped tightly through a tool clamp, a positioning claw at the lower end of a sleeve is inserted into a safety groove of the piston lock nut, the sleeve head is sleeved on a hexagonal head, and the piston lock nut is weighted to the minimum torque through a pound meter;
then inserting the connecting rod into the safety bushing, rotating the connecting rod to enable the positioning ball to protrude from the side through hole until the protruding part of the positioning ball is clamped in a safety hole of the safety bushing, inserting a cross screwdriver from the upper part to rotate the locking ejector rod to move downwards, enabling the lower end of the locking ejector rod to be pressed on the positioning ball, enabling the positioning ball to be fixed, and enabling the connecting rod and the safety bushing to be relatively fixed; sleeving the sleeve outside the connecting rod, enabling a positioning claw of the sleeve to be bitten in a safety groove of a piston lock nut, inserting a pin rod of the indicating pin into a positioning through hole of the sleeve, and sleeving a rubber band outside the upper end of the sleeve; finally, the sleeve is continuously rotated through the pound meter, the sleeve and the piston lock nut can relatively rotate outside the connecting rod and the safety bushing at the moment, and when the positioning through hole is opposite to the groove, the pin rod of the indicating pin can penetrate into the groove and the first through hole under the elastic force of the rubber band; because the position of the positioning through hole corresponds to the positions of the positioning claw and the safety groove up and down, and the position of the groove corresponds to the positions of the side through hole and the safety hole up and down, when the positioning through hole corresponds to the position of the groove, the safety groove corresponds to the position of the safety hole, the assembly requirement of the piston lock nut is conveniently and quickly realized without visual observation and detection, the working efficiency is improved, and time and labor are saved.
Drawings
FIG. 1 is a sectional view showing a structure of the present invention in a state of being coupled to a piston lock nut;
FIG. 2 is a partial cross-sectional view of the piston lock nut of the present invention prior to attachment thereto;
FIG. 3 is a front view of the sleeve of the present invention in a state of being coupled to a piston lock nut;
FIG. 4 is a cross-sectional view of the structure of the connecting rod of the present invention;
FIG. 5 is a sectional view of the connecting rod and the inner safety bushing of the cylindrical piston in the connected state;
FIG. 6 is a sectional view showing the construction of the assembled cylinder type piston and its internal accessories according to the present invention;
fig. 7 is an exploded view of the assembled actuator cylinder of the present invention.
Reference numbers in the figures: 1. the positioning device comprises a sleeve, 101, a positioning through hole, 2, a hexagonal head, 3, a positioning claw, 4, a connecting rod, 401, a first through hole, 402, a groove, 403, an internal thread part, 404, a side through hole, 5, a locking ejector rod, 501, a cross groove, 6, a positioning ball, 7, an indicating pin, 701, a through hole, 71, a pin rod, 72, a rubber band, 8, a nylon sleeve, 9, an actuating cylinder, 91, a cylinder-shaped piston, 92, a piston locking nut, 921, a safety groove, 93, a safety bush, 931, a safety hole, 94 and a piston rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
Referring to fig. 1-7, the present invention provides a technical solution: a lock nut assembly tool assembly for maintaining an airplane actuator cylinder comprises a sleeve 1, wherein a hexagonal head 2 is mounted at the upper end of the sleeve 1, a user can conveniently rotate the sleeve 1 through the hexagonal head 2, four positioning claws 3 are arranged at the lower end of the sleeve 1, the four positioning claws 3 are inserted into four safety slots 921 on a piston lock nut 92 to be positioned, positioning through holes 101 are formed in the side face of the upper end of the sleeve 1, and the positions of the positioning through holes 101 correspond to the positions of the positioning claws 3 up and down; the connecting rod 4 is sleeved in the sleeve 1, the outer side surface of the lower end of the connecting rod 4 is provided with the nylon sleeve 8, the lower end of the nylon sleeve 8 and the safety bush 93 are based to play a supporting role, and abrasion to the safety bush 93 is reduced; a first through hole 401 with an opening at the upper end is formed in the connecting rod 4, a groove 402 is further formed in the side face of the top end of the connecting rod 4, the position of the groove 402 can correspond to the positioning through hole 101 after the connecting rod 4 is rotated, an internal thread part 403 is arranged in the middle position of the first through hole 401, a side through hole 404 is formed in the side face of the lower end of the connecting rod 4, the positions of the groove 402 and the side through hole 404 correspond up and down, the side through hole 404 is communicated with the lower end of the first through hole 401, a positioning ball 6 is further arranged in the side through hole 404, the opening position of the side through hole 404 is a closed type, and the positioning ball 6 in the side through hole 404 is prevented from rolling out; a locking ejector rod 5 is screwed in the internal thread part 403 in the first through hole 401, the lower end of the locking ejector rod 5 is round, a cross-shaped groove 501 is formed in the upper end of the locking ejector rod 5, a user can conveniently screw the locking ejector rod 5 through a cross screwdriver, and the lower end of the locking ejector rod 5 is inserted into the side through hole 404; when the locking device is used again, the connecting rod 4 is inserted into the safety bush 93, the connecting rod 4 is rotated to enable the positioning ball 6 to protrude from the side through hole 404 until the protruding part of the positioning ball 6 is clamped in a safety hole 931 of the safety bush 93, a cross screwdriver is inserted from the upper side to rotate the locking ejector rod 5 to move downwards, the lower end of the locking ejector rod 5 is pressed on the positioning ball 6, the positioning ball 6 is fixed, and the connecting rod 4 and the safety bush 93 are relatively fixed;
a pin rod 71 is horizontally inserted into the positioning through hole 101, an indicating pin 7 is installed at the outer end of the pin rod 71, a through hole 701 is formed in the outer end of the indicating pin 7, one end of a rubber band 72 penetrates through the through hole 701, and the other end of the rubber band 72 is sleeved outside the upper end of the sleeve 1.
The working principle is as follows: when a piston lock nut 92 and accessories thereof in a cylinder-shaped piston 91 of an actuator cylinder 9 are installed, firstly, the cylinder-shaped piston 91, the piston lock nut 92, a safety bushing 93 and a piston rod 94 are assembled together, the piston lock nut 92 is in threaded connection with the upper end of the piston rod 94, then the piston rod 94 and the end below the piston rod are clamped through a tool clamp, a positioning claw 3 at the lower end of a sleeve 1 is inserted into a safety groove 921 of the piston lock nut 92, the sleeve head is sleeved on a hexagonal head 2, and the piston lock nut 92 is stressed to the minimum moment through a weighing meter;
then the connecting rod 4 is inserted into the safety bush 93, the connecting rod 4 is rotated to enable the positioning ball 6 to protrude from the side through hole 404 until the protruding part of the positioning ball 6 is clamped in a safety hole 931 of the safety bush 93, a cross screwdriver is inserted from above to rotate the locking ejector rod 5 to move downwards, the lower end of the locking ejector rod 5 is pressed on the positioning ball 6, the positioning ball 6 is fixed, and the connecting rod 4 and the safety bush 93 are relatively fixed; then the sleeve 1 is sleeved outside the connecting rod 4, so that the positioning claw 3 of the sleeve 1 is meshed in the safety slot 921 of the piston lock nut 92, the pin rod 71 of the indicating pin 7 is inserted into the positioning through hole 101 of the sleeve 1, and the rubber band 72 is sleeved outside the upper end of the sleeve 1; finally, the sleeve 1 is continuously rotated through the pound meter, at the moment, the sleeve 1 and the piston lock nut 92 rotate relatively outside the connecting rod 4 and the safety bushing 93, and when the positioning through hole 101 is opposite to the position of the groove 402, the pin rod 71 of the indicating pin 7 penetrates into the groove 402 and the first through hole 401 under the action of the elastic force of the rubber band 72; because the position of the positioning through hole 101 corresponds to the positions of the positioning claw 3 and the safety groove 921 up and down, and the position of the groove 402 corresponds to the positions of the side through hole 404 and the safety hole 931 up and down, when the position of the positioning through hole 101 corresponds to the position of the groove 402, the safety groove 921 corresponds to the position of the safety hole 931, and the assembly requirement of the piston lock nut 92 is met conveniently and quickly without visual inspection and detection.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an aircraft is lock nut assembly fixture subassembly for actuator cylinder maintenance, includes sleeve (1), its characterized in that: the upper end of the sleeve (1) is provided with a hexagonal head (2), the lower end of the sleeve (1) is provided with four positioning claws (3), the side surface of the upper end of the sleeve (1) is provided with a positioning through hole (101), and the position of the positioning through hole (101) corresponds to the position of the positioning claws (3) up and down; a connecting rod (4) is sleeved in the sleeve (1), a first through hole (401) with an upper end open is formed in the connecting rod (4), a groove (402) is further formed in the side surface of the top end of the connecting rod (4), an internal thread portion (403) is arranged in the middle of the first through hole (401), a side through hole (404) is formed in the side surface of the lower end of the connecting rod (4), the groove (402) corresponds to the side through hole (404) in a vertical mode, the side through hole (404) is communicated with the lower end of the first through hole (401), and a positioning ball (6) is further arranged in the side through hole (404); a locking ejector rod (5) is screwed in an internal thread part (403) in the first through hole (401), and the lower end of the locking ejector rod (5) is inserted into the side through hole (404);
a pin rod (71) is horizontally inserted into the positioning through hole (101), an indicating pin (7) is installed at the outer end of the pin rod (71), a through hole (701) is formed in the outer end of the indicating pin (7), one end of a rubber band (72) penetrates through the through hole (701), and the other end of the rubber band (72) is sleeved outside the upper end of the sleeve (1).
2. An aircraft ram service cage nut assembly as defined in claim 1, wherein: the upper end of the locking ejector rod (5) is provided with a cross groove (501).
3. A cage nut assembly as set forth in claim 1 in the form of a cage nut assembly for servicing an aircraft ram, wherein: the opening position of the side through hole (404) is a closed type.
4. An aircraft ram service cage nut assembly as defined in claim 1, wherein: the outer side surface of the lower end of the connecting rod (4) is provided with a nylon sleeve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111240933.4A CN113843748B (en) | 2021-10-25 | 2021-10-25 | Lock nut assembly tool assembly for maintaining airplane actuator cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111240933.4A CN113843748B (en) | 2021-10-25 | 2021-10-25 | Lock nut assembly tool assembly for maintaining airplane actuator cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113843748A CN113843748A (en) | 2021-12-28 |
| CN113843748B true CN113843748B (en) | 2022-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111240933.4A Active CN113843748B (en) | 2021-10-25 | 2021-10-25 | Lock nut assembly tool assembly for maintaining airplane actuator cylinder |
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| CN (1) | CN113843748B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1317798A (en) * | 1970-06-15 | 1973-05-23 | Hubbell Inc Harvey | Contact extraction tools |
| CN102744702A (en) * | 2011-04-19 | 2012-10-24 | 仲展实业有限公司 | Quick connecting rod |
| CN103622632A (en) * | 2013-11-22 | 2014-03-12 | 赵励平 | Descent control device connecting frame for closestool and assembling method |
| CN203918859U (en) * | 2014-03-31 | 2014-11-05 | 昌河飞机工业（集团）有限责任公司 | Assembling jig TH hole locator |
| CN205184673U (en) * | 2015-10-20 | 2016-04-27 | 中国人民解放军第五七二一工厂 | Aircraft undercarriage backplate receive and releases pressurized strut piston assembling instrument |
| CN206839519U (en) * | 2017-04-14 | 2018-01-05 | 苏州科瑞机械有限公司 | One kind automation bush assembling mechanism |
| CN207044075U (en) * | 2017-07-01 | 2018-02-27 | 仝丹丹 | A kind of speed changer assembly bench |
| CN210210101U (en) * | 2019-05-31 | 2020-03-31 | 沈阳北方飞机维修有限公司 | Repairing tool for airplane actuating cylinder |
| CN211073408U (en) * | 2019-09-24 | 2020-07-24 | 上海航翼高新技术发展研究院有限公司 | Disassembling and assembling device for spring pull rod of airplane |
| CN112338858A (en) * | 2020-12-03 | 2021-02-09 | 刘明青 | Dental low-speed mobile phone disassembling device |
-
2021
- 2021-10-25 CN CN202111240933.4A patent/CN113843748B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1317798A (en) * | 1970-06-15 | 1973-05-23 | Hubbell Inc Harvey | Contact extraction tools |
| CN102744702A (en) * | 2011-04-19 | 2012-10-24 | 仲展实业有限公司 | Quick connecting rod |
| CN103622632A (en) * | 2013-11-22 | 2014-03-12 | 赵励平 | Descent control device connecting frame for closestool and assembling method |
| CN203918859U (en) * | 2014-03-31 | 2014-11-05 | 昌河飞机工业（集团）有限责任公司 | Assembling jig TH hole locator |
| CN205184673U (en) * | 2015-10-20 | 2016-04-27 | 中国人民解放军第五七二一工厂 | Aircraft undercarriage backplate receive and releases pressurized strut piston assembling instrument |
| CN206839519U (en) * | 2017-04-14 | 2018-01-05 | 苏州科瑞机械有限公司 | One kind automation bush assembling mechanism |
| CN207044075U (en) * | 2017-07-01 | 2018-02-27 | 仝丹丹 | A kind of speed changer assembly bench |
| CN210210101U (en) * | 2019-05-31 | 2020-03-31 | 沈阳北方飞机维修有限公司 | Repairing tool for airplane actuating cylinder |
| CN211073408U (en) * | 2019-09-24 | 2020-07-24 | 上海航翼高新技术发展研究院有限公司 | Disassembling and assembling device for spring pull rod of airplane |
| CN112338858A (en) * | 2020-12-03 | 2021-02-09 | 刘明青 | Dental low-speed mobile phone disassembling device |
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| Publication number | Publication date |
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| CN113843748A (en) | 2021-12-28 |
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