CN114986137A - Special nut screwing equipment for aviation equipment - Google Patents
Special nut screwing equipment for aviation equipment Download PDFInfo
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- CN114986137A CN114986137A CN202210449031.XA CN202210449031A CN114986137A CN 114986137 A CN114986137 A CN 114986137A CN 202210449031 A CN202210449031 A CN 202210449031A CN 114986137 A CN114986137 A CN 114986137A
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- 238000007789 sealing Methods 0.000 claims description 22
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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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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Abstract
A special screwing device for nuts of aviation equipment comprises a rack, a screwing machine, a screwing motor, a three-channel flexible cable traction mechanism, a hollow support rod and a nut screwing wrench; the rack is fixedly connected with a power output shaft of the tightening machine; the screwing motor and the three-channel flexible cable traction mechanism are arranged on the frame; one end of the hollow strut is fixedly connected with the rack, and the nut tightening wrench is connected with the other end of the hollow strut; the hollow support rod and a motor shaft of the screwing motor are coaxially distributed, a force transmission shaft is arranged in the hollow support rod, and the motor shaft of the screwing motor is in transmission connection with the nut screwing wrench through the coaxially connected force transmission shaft; the three-channel flexible cable traction mechanism is in transmission connection with the nut tightening wrench through three flexible cables. The special nut screwing device for the aviation equipment has the characteristics of simple structure and reliable work, can replace a manual mode to finish the nut screwing work, effectively reduces the labor intensity of workers, and can finish the nut mounting and screwing operation efficiently even if the fastening position is in a severe working environment.
Description
Technical Field
The invention belongs to the technical field of aviation equipment assembly, and particularly relates to a special screwing device for an aviation equipment nut.
Background
In the field of aviation, many aviation equipment are fastened and connected with a nut through a bolt in the circumferential direction, and at present, the nut mounting and tightening work is mainly completed manually, due to the particularity of the aviation equipment, strict requirements are usually made on the tightening torque of the nut, and the nut mounting and tightening process also usually has the requirements of "tightening → loosening → re-tightening", so that the labor intensity of workers is very high, and the work efficiency is very low.
In addition, some fastening positions of aviation equipment may also exist in severe working environments such as high temperature and narrow space, and it is difficult for workers to perform nut tightening operation in severe working environments for a long time, so that the working efficiency is further reduced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides the special nut screwing equipment for the aviation equipment, which has the characteristics of simple structure and reliable work, can replace a manual mode to finish the nut screwing work, effectively reduces the labor intensity of workers, and can efficiently finish the nut mounting and screwing operation even if the fastening position is in a severe working environment.
In order to achieve the purpose, the invention adopts the following technical scheme: a special screwing device for nuts of aviation equipment comprises a rack, a screwing machine, a screwing motor, a three-channel flexible cable traction mechanism, a hollow support rod and a nut screwing wrench; the frame is fixedly connected with a power output shaft of the tightening machine; the screwing motor and the three-channel flexible cable traction mechanism are both arranged on the rack; one end of the hollow support rod is fixedly connected with the rack, and the nut tightening wrench is connected to the other end of the hollow support rod; the hollow support rod and a motor shaft of the screwing motor are coaxially distributed, a force transmission shaft is arranged in the hollow support rod, one end of the force transmission shaft is coaxially and fixedly connected with the motor shaft of the screwing motor, and the other end of the force transmission shaft is in transmission connection with the nut screwing wrench; the three-channel flexible cable traction mechanism is in transmission connection with the nut tightening wrench through three flexible cables.
The nut screwing wrench comprises a shell, a sealing cover, an input end gear, a middle transmission gear set, an output end gear, a nut screwing sleeve, a nut screwing control assembly and a nut picking control assembly; the input end gear, the middle transmission gear set, the output end gear and the nut screwing sleeve are sequentially arranged inside the shell along a straight line; the sealing cover is fixedly connected with the shell, and the inner space of the shell is sealed by the sealing cover; the gear shaft of the input end gear is rotationally connected with the shell and the sealing cover through bearings, one end of the gear shaft of the input end gear penetrates through the sealing cover and extends to the outside of the shell, and a motor shaft of the screwing motor is coaxially and fixedly connected with the gear shaft of the input end gear through a force transmission shaft in the hollow supporting rod; the gear shafts of all the intermediate transmission gears in the intermediate transmission gear set are rotatably connected with the shell and the sealing cover through bearings, and the input end gear is in meshing transmission with the intermediate transmission gear set; the gear shaft of the output end gear is rotationally connected with the shell and the sealing cover through a bearing, and the output end gear is in meshing transmission with the intermediate transmission gear set; the nut screwing sleeve is arranged in the shell through the sleeve limiting piece, and only has a rotation degree of freedom under the limiting of the sleeve limiting piece; the sleeve limiting piece is fixedly connected with the shell through a limiting piece stop block; a sleeve penetrating hole is formed in the shell opposite to the nut screwing sleeve; the nut screwing control assembly is positioned outside the sleeve penetrating hole and arranged on the shell; the nut picking control assembly is located outside the sleeve penetrating hole and arranged on the nut screwing control assembly.
The outer surface of the nut screwing sleeve is respectively provided with a transmission outer gear ring and a ratchet gear ring along the axial direction; the nut screwing sleeve at the position of the transmission outer gear ring is positioned in the shell, and the transmission outer gear ring is in meshing transmission with the output end gear; the nut screwing sleeve at which the ratchet gear ring is located is positioned outside the shell; the inner surface of the nut screwing sleeve positioned outside the shell is provided with a dodecagonal hole, and the dodecagonal hole is matched with a nut to be screwed; the nut screwing sleeve is coaxially arranged with a power output shaft of the tightening machine.
The nut screwing control assembly comprises a support frame, a left pawl and a right pawl; the support frame is fixedly connected with the shell; the left pawl and the right pawl are arranged in the support frame in a mirror symmetry manner; the root of the left pawl is hinged with the support frame, a ratchet is arranged at the top of the left pawl, and the left pawl is matched with a ratchet gear ring on the nut screwing sleeve through the ratchet at the top of the left pawl; a left pawl reset spring is arranged between the left pawl and the support frame; the left pawl is connected with the three-channel flexible cable traction mechanism through a first flexible cable; the root of the right pawl is hinged with the support frame, a ratchet is arranged at the top of the right pawl, and the right pawl is matched with a ratchet gear ring on the nut screwing sleeve through the ratchet at the top of the right pawl; a right pawl return spring is arranged between the right pawl and the support frame; and the right pawl is connected with the three-channel flexible cable traction mechanism through a second flexible cable.
The nut picking control assembly comprises a positioning frame and a nut pressing plate; the positioning frame is fixedly connected with the supporting frame; the nut pressing plate is arranged inside the positioning frame, and a pressing plate return spring is arranged between the nut pressing plate and the supporting frame; the nut pressing plate is matched with a nut to be screwed; the nut pressing plate is connected with the three-channel flexible cable traction mechanism through a third flexible cable; and a flexible cable limiting plate used for limiting the positions of the first flexible cable, the second flexible cable and the third flexible cable is further arranged outside the shell.
The invention has the beneficial effects that:
the special nut screwing device for the aviation equipment has the characteristics of simple structure and reliable work, can replace a manual mode to finish the nut screwing work, effectively reduces the labor intensity of workers, and can finish the nut mounting and screwing operation efficiently even if the fastening position is in a severe working environment.
Drawings
FIG. 1 is a schematic structural diagram of a special tightening device for an aviation equipment nut of the invention;
FIG. 2 is a schematic view of the nut runner of the present invention;
FIG. 3 is an exploded view of the nut runner of the present invention;
FIG. 4 is a schematic view of the nut runner of the present invention (the housing, the cover, and other external shielding members are not shown);
FIG. 5 is a schematic view of the nut-turning sleeve of the present invention;
FIG. 6 is a schematic view of the nut-turning sleeve of the present invention engaged with the left and right pawls (initial state);
FIG. 7 is a schematic view of the nut-turning sleeve of the present invention in cooperation with the left and right pawls (high torque tightened state);
FIG. 8 is a schematic view of the nut-turning sleeve of the present invention in engagement with the left and right pawls (high-torque relaxed state);
in the figure, 1-frame, 2-tightening machine, 3-screwing motor, 4-three-channel flexible cable traction mechanism, 5-hollow supporting rod, 6-nut screwing wrench, 7-shell, 8-sealing cover, 9-input end gear, 10-intermediate transmission gear set, 11-output end gear, 12-nut screwing sleeve, 13-nut screwing control component, 14-nut picking control component, 15-sleeve limiting piece, 16-limiting piece stop block, 17-transmission outer gear ring, 18-ratchet gear ring, 19-dodecagonal hole, 20-supporting frame, 21-left pawl, 22-right pawl, 23-left pawl return spring, 24-right pawl return spring, 25-positioning frame, 26-nut pressing plate, 27-pressing plate return spring, 28-first flexible cable, 29-second flexible cable, 30-third flexible cable, and 31-flexible cable limiting plate.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1 to 8, a special nut screwing device for aviation equipment comprises a rack 1, a screwing machine 2, a screwing motor 3, a three-channel flexible cable traction mechanism 4, a hollow strut 5 and a nut screwing wrench 6; the frame 1 is fixedly connected with a power output shaft of the tightening machine 2; the screwing motor 3 and the three-channel flexible cable traction mechanism 4 are both arranged on the frame 1; one end of the hollow strut 5 is fixedly connected with the rack 1, and the nut tightening wrench 6 is connected to the other end of the hollow strut 5; the hollow support rod 5 and a motor shaft of the screwing motor 3 are coaxially distributed, a force transmission shaft is arranged inside the hollow support rod 5, one end of the force transmission shaft is coaxially and fixedly connected with the motor shaft of the screwing motor 3, and the other end of the force transmission shaft is in transmission connection with the nut screwing wrench 6; the three-channel flexible cable traction mechanism 4 is in transmission connection with the nut tightening wrench 6 through three flexible cables.
The nut tightening wrench 6 comprises a shell 7, a sealing cover 8, an input end gear 9, a middle transmission gear set 10, an output end gear 11, a nut screwing sleeve 12, a nut tightening control assembly 13 and a nut picking control assembly 14; the input end gear 9, the middle transmission gear set 10, the output end gear 11 and the nut screwing sleeve 12 are sequentially arranged inside the shell 7 along a straight line; the sealing cover 8 is fixedly connected with the shell 7, and the inner space of the shell 7 is sealed by the sealing cover 8; the gear shaft of the input end gear 9 is rotatably connected with the shell 7 and the sealing cover 8 through bearings, one end of the gear shaft of the input end gear 9 penetrates through the sealing cover 8 and extends to the outside of the shell 7, and the motor shaft of the screwing motor 3 is coaxially and fixedly connected with the gear shaft of the input end gear 9 through a force transmission shaft in the hollow support rod 5; all gear shafts of the intermediate transmission gears in the intermediate transmission gear set 10 are rotatably connected with the shell 7 and the sealing cover 8 through bearings, and the input end gear 9 is in meshing transmission with the intermediate transmission gear set 10; the gear shaft of the output end gear 11 is rotatably connected with the shell 7 and the sealing cover 8 through bearings, and the output end gear 11 is in meshing transmission with the middle transmission gear set 10; the nut screwing sleeve 12 is arranged in the shell 7 through a sleeve limiting piece 15, and the nut screwing sleeve 12 only has a rotation degree of freedom under the limiting of the sleeve limiting piece 15; the sleeve limiting sheet 15 is fixedly connected with the shell 7 through a limiting sheet stop 16; a sleeve penetrating hole is formed in the shell 7 opposite to the nut screwing sleeve 12; the nut screwing control assembly 13 is positioned outside the sleeve penetrating hole and is arranged on the shell 7; the nut picking control assembly 14 is located outside the sleeve piercing hole and is arranged on the nut tightening control assembly 13.
The outer surface of the nut screwing sleeve 12 is provided with a transmission outer gear ring 17 and a ratchet gear ring 18 along the axial direction; the nut screwing sleeve 12 where the transmission outer gear ring 17 is located is positioned inside the shell 7, and the transmission outer gear ring 17 is in meshed transmission with the output end gear 11; the nut-turning sleeve 12 where the ratchet toothing 18 is located outside the housing 7; the inner surface of the nut screwing sleeve 12 positioned outside the shell 7 is provided with a dodecagonal hole 19, and the dodecagonal hole 19 is matched with a nut to be screwed for use; the nut-screwing sleeve 12 is disposed coaxially with the power output shaft of the tightening machine 2.
The nut screwing control assembly 13 comprises a support frame 20, a left pawl 21 and a right pawl 22; the support frame 20 is fixedly connected with the shell 7; the left pawl 21 and the right pawl 22 are arranged in the support frame 20 in a mirror symmetry manner; the root of the left pawl 21 is hinged with the support frame 20, the top of the left pawl 21 is provided with a ratchet, and the left pawl 21 is matched with the ratchet gear ring 18 on the nut screwing sleeve 12 for use through the ratchet at the top of the left pawl 21; a left pawl return spring 23 is arranged between the left pawl 21 and the support frame 20; the left pawl 21 is connected with the three-channel flexible cable traction mechanism 4 through a first flexible cable 28; the root of the right pawl 22 is hinged with the support frame 20, the top of the right pawl 22 is provided with a ratchet, and the right pawl 22 is matched with the ratchet gear ring 18 on the nut screwing sleeve 12 for use through the ratchet at the top; a right pawl return spring 24 is arranged between the right pawl 22 and the support frame 20; the right pawl 22 is connected with the three-channel flexible cable traction mechanism 4 through a second flexible cable 29.
The nut picking control assembly 14 comprises a positioning frame 25 and a nut pressing plate 26; the positioning frame 25 is fixedly connected with the support frame 20; the nut pressing plate 26 is arranged inside the positioning frame 25, and a pressing plate return spring 27 is arranged between the nut pressing plate 26 and the supporting frame 20; the nut pressing plate 26 is matched with a nut to be screwed; the nut pressing plate 26 is connected with the three-channel flexible cable traction mechanism 4 through a third flexible cable 30; a flexible cable position limiting plate 31 for limiting the positions of the first, second and third flexible cables is further provided outside the housing 7.
The single use process of the present invention is described below with reference to the accompanying drawings:
firstly, a mechanical arm is selected, the special screwing device for the aviation equipment nut is used as an end pick-up of the mechanical arm, and the special screwing device is specifically assembled and connected with the mechanical arm through a screwing machine 2.
In the range covered by the mechanical arm, two areas are arranged, one area is used as an assembly area of aviation equipment, the other area is used as a part area, and a nut to be installed is placed in the part area.
The aircraft equipment nut special tightening device of the invention is first moved to the part area by the robot arm so that the nut screwing sleeve 12 inside the nut screwing wrench 6 is positioned right above the nut, and then the nut screwing wrench 6 is controlled to fall down until the upper half of the nut is accurately entered into the twelve-angled hole 19 of the nut screwing sleeve 12.
When the nut enters the dodecagonal hole 19 of the nut screwing sleeve 12, the three-channel flexible cable traction mechanism 4 is started to pay off the third flexible cable 30, and the nut is pressed and fixed on the nut screwing wrench 6 through the nut pressing plate 26 under the thrust action of the pressing plate return spring 27.
After the nuts are clamped and fixed on the nut tightening wrenches 6, the special nut tightening equipment for the aviation equipment is moved to an assembly area through the mechanical arm, the nuts clamped and fixed on the nut tightening wrenches 6 are located right above the screws at the corresponding positions of the aviation equipment, and then the nut tightening wrenches 6 are controlled to fall down until the nuts accurately fall to the top ends of the screws.
After the nut falls to the top end of the screw rod, the three-channel flexible cable traction mechanism 4 is started to take up a third flexible cable 30, the nut pressing plate 26 is pulled away from the nut through the third flexible cable 30, and the pressing plate return spring 27 is restored to a compression state.
After the nut pressing plate 26 is pulled away from the nut, the screwing motor 3 is started to drive the force transmission shaft inside the hollow supporting rod 5 to rotate, the input end gear 9, the middle transmission gear set 10 and the output end gear 11 are sequentially driven to rotate through the rotating force transmission shaft, the transmission outer gear ring 17 meshed with the output end gear 11 is driven to rotate through the rotating output end gear 11, the nut screwing sleeve 12 is finally driven to rotate, the nut in the dodecagonal hole 19 is driven to rotate through the rotating nut screwing sleeve 12, screwing of the nut on the screw is achieved, and the nut screwing wrench 6 follows up along the axial direction of the screw under the control of the mechanical arm in the nut screwing process until the nut is screwed in place.
After the nut is screwed in place on the screw, the three-channel flexible cable traction mechanism 4 is started firstly to pay off the first flexible cable 28, the ratchet at the top of the left pawl 21 is meshed with the ratchet gear ring 18 on the nut screwing sleeve 12 under the thrust action of the left pawl return spring 23, then the screwing machine 2 is started in the forward direction, the power output shaft of the screwing machine 2 drives the rack 1 to swing, and as the rack 1 is fixedly connected with the shell 7 of the nut screwing wrench 6 into a whole through the hollow support rod 5, the swinging motion and the synchronization of the rack 1 are converted into the swinging motion of the nut screwing wrench 6, and finally the nut is screwed with high torque through the swinging motion of the nut screwing wrench 6.
After the nut is screwed up with large torque, according to the technological requirements, the nut which is screwed up for the first time needs to be loosened, and then the nut is screwed up for the second time, so that in order to meet the technological requirements, the three-channel flexible cable traction mechanism 4 is started firstly, the first flexible cable 28 is taken up, the left pawl 21 is pulled away from the ratchet gear ring 18 through the first flexible cable 28, and the left pawl return spring 23 is restored to a compressed state; meanwhile, the second flexible cable 29 is paid off, the top ratchet of the right pawl 22 is meshed with the ratchet gear ring 18 on the nut screwing sleeve 12 under the thrust action of the right pawl return spring 24, then the tightening machine 2 is started reversely, the power output shaft of the tightening machine 2 drives the rack 1 to swing, the nut screwing wrench 6 is driven to swing synchronously, and finally the nut is loosened at a large moment through the swinging motion of the nut screwing wrench 6.
After the nut is loosened by large torque, the three-channel flexible cable traction mechanism 4 is started under the process requirement, the second flexible cable 29 is wound, the right pawl 22 is pulled away from the ratchet gear ring 18 through the second flexible cable 29, and the right pawl return spring 24 is restored to a compressed state; meanwhile, the first flexible cable 28 is paid off, under the thrust action of the left pawl return spring 23, a ratchet at the top of the left pawl 21 is meshed with the ratchet gear ring 18 on the nut screwing sleeve 12, then the screwing machine 2 is started in the forward direction, the power output shaft of the screwing machine 2 drives the rack 1 to swing, the nut screwing wrench 6 is driven to swing synchronously, and finally the nut is loosened at a high torque through the swinging motion of the nut screwing wrench 6, so that the nut is screwed secondarily.
After the nut is subjected to the process requirements of 'screwing → loosening → re-screwing', the three-channel flexible cable traction mechanism 4 is started to take up the first flexible cable 28, the left pawl 21 is pulled away from the ratchet gear ring 18 through the first flexible cable 28, the left pawl return spring 23 is restored to the compressed state, the left pawl 21 and the right pawl 22 are both in the initial state of being separated from the ratchet gear ring 18, then the nut screwing wrench 6 is controlled to move upwards to separate the screwed nut from the dodecagonal hole 19 of the nut screwing sleeve 12, finally the special nut screwing equipment for the aviation equipment is moved to the part area again through the mechanical arm, the installation process of the first nut is repeated, and the subsequent installation and screwing work of other nuts is completed.
The embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications without departing from the scope of the present invention are included in the claims of the present application.
Claims (5)
1. The utility model provides a special equipment of screwing up of nut is equipped to aviation which characterized in that: the three-channel flexible cable traction mechanism comprises a rack, a tightening machine, a screwing motor, a three-channel flexible cable traction mechanism, a hollow support rod and a nut tightening wrench; the frame is fixedly connected with a power output shaft of the tightening machine; the screwing motor and the three-channel flexible cable traction mechanism are both arranged on the rack; one end of the hollow support rod is fixedly connected with the rack, and the nut tightening wrench is connected to the other end of the hollow support rod; the hollow support rod and a motor shaft of the screwing motor are coaxially distributed, a force transmission shaft is arranged in the hollow support rod, one end of the force transmission shaft is coaxially and fixedly connected with the motor shaft of the screwing motor, and the other end of the force transmission shaft is in transmission connection with the nut screwing wrench; the three-channel flexible cable traction mechanism is in transmission connection with the nut tightening wrench through three flexible cables.
2. The special nut screwing device for the aviation equipment according to claim 1, wherein: the nut screwing wrench comprises a shell, a sealing cover, an input end gear, a middle transmission gear set, an output end gear, a nut screwing sleeve, a nut screwing control assembly and a nut picking control assembly; the input end gear, the middle transmission gear set, the output end gear and the nut screwing sleeve are sequentially arranged inside the shell along a straight line; the sealing cover is fixedly connected with the shell, and the inner space of the shell is sealed by the sealing cover; the gear shaft of the input gear is rotationally connected with the shell and the sealing cover through bearings, one end of the gear shaft of the input gear penetrates through the sealing cover and extends to the outside of the shell, and a motor shaft of the screwing motor is coaxially and fixedly connected with the gear shaft of the input gear through a force transmission shaft in the hollow supporting rod; the gear shafts of all the intermediate transmission gears in the intermediate transmission gear set are rotatably connected with the shell and the sealing cover through bearings, and the input end gear is in meshing transmission with the intermediate transmission gear set; the gear shaft of the output gear is rotationally connected with the shell and the sealing cover through a bearing, and the output gear is in meshing transmission with the intermediate transmission gear set; the nut screwing sleeve is arranged in the shell through the sleeve limiting piece, and only has a rotation degree of freedom under the limiting of the sleeve limiting piece; the sleeve limiting piece is fixedly connected with the shell through a limiting piece stop block; a sleeve penetrating hole is formed in the shell opposite to the nut screwing sleeve; the nut screwing control assembly is positioned outside the sleeve penetrating hole and arranged on the shell; the nut picking control assembly is located outside the sleeve penetrating hole and arranged on the nut screwing control assembly.
3. The special nut screwing device for the aviation equipment according to claim 2, characterized in that: the outer surface of the nut screwing sleeve is respectively provided with a transmission outer gear ring and a ratchet gear ring along the axial direction; the nut screwing sleeve at the position of the transmission outer gear ring is positioned in the shell, and the transmission outer gear ring is in meshing transmission with the output end gear; the nut screwing sleeve at which the ratchet gear ring is located is positioned outside the shell; the inner surface of the nut screwing sleeve positioned outside the shell is provided with a dodecagonal hole, and the dodecagonal hole is matched with a nut to be screwed; the nut screwing sleeve is coaxially arranged with a power output shaft of the tightening machine.
4. The special nut screwing device for aviation equipment according to claim 3, wherein: the nut screwing control assembly comprises a support frame, a left pawl and a right pawl; the support frame is fixedly connected with the shell; the left pawl and the right pawl are arranged in the support frame in a mirror symmetry manner; the root of the left pawl is hinged with the support frame, a ratchet is arranged at the top of the left pawl, and the left pawl is matched with a ratchet gear ring on the nut screwing sleeve through the ratchet at the top of the left pawl; a left pawl return spring is arranged between the left pawl and the support frame; the left pawl is connected with the three-channel flexible cable traction mechanism through a first flexible cable; the root of the right pawl is hinged with the support frame, a ratchet is arranged at the top of the right pawl, and the right pawl is matched with a ratchet gear ring on the nut screwing sleeve through the ratchet at the top of the right pawl; a right pawl return spring is arranged between the right pawl and the support frame; and the right pawl is connected with the three-channel flexible cable traction mechanism through a second flexible cable.
5. The special nut screwing device for the aviation equipment according to claim 4, wherein: the nut picking control assembly comprises a positioning frame and a nut pressing plate; the positioning frame is fixedly connected with the supporting frame; the nut pressing plate is arranged inside the positioning frame, and a pressing plate return spring is arranged between the nut pressing plate and the supporting frame; the nut pressing plate is matched with a nut to be screwed; the nut pressing plate is connected with the three-channel flexible cable traction mechanism through a third flexible cable; and a flexible cable limiting plate used for limiting the positions of the first flexible cable, the second flexible cable and the third flexible cable is further arranged outside the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210449031.XA CN114986137B (en) | 2022-04-27 | 2022-04-27 | Special screwing equipment for aviation equipment nuts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210449031.XA CN114986137B (en) | 2022-04-27 | 2022-04-27 | Special screwing equipment for aviation equipment nuts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114986137A true CN114986137A (en) | 2022-09-02 |
| CN114986137B CN114986137B (en) | 2024-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210449031.XA Active CN114986137B (en) | 2022-04-27 | 2022-04-27 | Special screwing equipment for aviation equipment nuts |
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| Country | Link |
|---|---|
| CN (1) | CN114986137B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115648113A (en) * | 2022-11-01 | 2023-01-31 | 中国航发沈阳黎明航空发动机有限责任公司 | Steel cable auxiliary connecting device of aircraft engine steel cable tractor |
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| JPH0671065U (en) * | 1993-03-19 | 1994-10-04 | 旭金属工業株式会社 | Ratchet wrench and tightening tool |
| US20040093995A1 (en) * | 2002-07-22 | 2004-05-20 | Bobby Hu | Ratcheting wrench with quick tightening/loosening functions and fine adjusting functions |
| KR101415580B1 (en) * | 2014-05-02 | 2014-07-04 | 주식회사 우정티엠에스 | Open type ratchet wrench |
| US20190118350A1 (en) * | 2017-10-25 | 2019-04-25 | Aficial Co., Ltd. | Ratchet wrench |
| CN208051780U (en) * | 2018-04-09 | 2018-11-06 | 新昌县羽林街道元洋机械厂 | A kind of nut tightening device with self-locking |
| CN108544409A (en) * | 2018-07-02 | 2018-09-18 | 四川汇智众创科技有限公司 | A kind of Quick fastening spanner being applied to interlocking double nut |
| CN110757140A (en) * | 2019-11-01 | 2020-02-07 | 深圳市圆梦精密技术研究院 | Nut screwing device |
| CN110814716A (en) * | 2019-11-01 | 2020-02-21 | 深圳市圆梦精密技术研究院 | Nut screwing device and nut screwing mechanism thereof |
| CN112045405A (en) * | 2020-09-22 | 2020-12-08 | 沈阳航空航天大学 | Rapid large-torque blind cavity tightening device and method in narrow and long space |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115648113A (en) * | 2022-11-01 | 2023-01-31 | 中国航发沈阳黎明航空发动机有限责任公司 | Steel cable auxiliary connecting device of aircraft engine steel cable tractor |
| CN115648113B (en) * | 2022-11-01 | 2024-04-26 | 中国航发沈阳黎明航空发动机有限责任公司 | Auxiliary steel rope connecting device of aeroengine steel rope tractor |
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| CN114986137B (en) | 2024-03-22 |
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