CN114986137B - Special screwing equipment for aviation equipment nuts - Google Patents
Special screwing equipment for aviation equipment nuts Download PDFInfo
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- CN114986137B CN114986137B CN202210449031.XA CN202210449031A CN114986137B CN 114986137 B CN114986137 B CN 114986137B CN 202210449031 A CN202210449031 A CN 202210449031A CN 114986137 B CN114986137 B CN 114986137B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 63
- 238000007789 sealing Methods 0.000 claims description 22
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012636 effector Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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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
Abstract
The special screwing equipment for the aviation equipment nuts comprises a rack, a screwing machine, a screwing motor, a three-channel flexible cable pulling 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 pulling mechanism are arranged on the frame; one end of the hollow supporting rod is fixedly connected with the frame, and a nut tightening wrench is connected to the other end of the hollow supporting rod; the hollow support rod and the 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 tightening equipment for the aviation equipment nuts has the characteristics of simple structure and reliable work, can replace a manual mode to complete the nut tightening work, effectively reduces the labor intensity of workers, and can efficiently complete the nut installation tightening work even if the tightening 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 special tightening equipment for aviation equipment nuts.
Background
In the field of aviation, many aviation equipment is realized fastening connection through bolt and nut in the circumferencial direction to the nut installation screwing up work of present stage mainly relies on the manual work to accomplish, because aviation equipment's specificity generally has strict requirement to the tightening moment of nut, and nut installation screwing up technology still generally has "screw up- & gt relaxing- & gt again tightening" requirement, thereby leads to workman's intensity of labour very high, and work efficiency is also very low.
In addition, fastening positions of some aviation equipment may exist in severe working environments such as high temperature and narrow space, and a worker is difficult to carry out nut tightening operation in the 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 special tightening equipment for the aviation equipment nuts has the characteristics of simple structure and reliable work, can replace a manual mode to complete the nut tightening work, effectively reduces the labor intensity of workers, and can efficiently complete the nut installation tightening operation even if the tightening position is in a severe working environment.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the special screwing equipment for the aviation equipment nuts comprises a rack, a screwing machine, a screwing motor, a three-channel flexible cable pulling 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-way flexible cable pulling mechanism are both arranged on the frame; one end of the hollow supporting rod is fixedly connected with the frame, and the nut tightening wrench is connected to the other end of the hollow supporting rod; the hollow support rod and the 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 tightening wrench comprises a shell, a sealing cover, an input end gear, an intermediate transmission gear set, an output end gear, a nut screwing sleeve, a nut tightening control assembly and a nut pickup control assembly; the input end gear, the intermediate transmission gear set, the output end gear and the nut screwing sleeve are sequentially arranged in 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 to extend 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 intermediate transmission gears in the intermediate transmission gear set are rotationally connected with the shell and the sealing cover through bearings, and the input end gears are meshed with the intermediate transmission gear set for transmission; the gear shaft of the output end gear is rotationally connected with the shell and the sealing cover through bearings, and the output end gear is meshed with the intermediate transmission gear set for transmission; the nut screwing sleeve is arranged in the shell through the sleeve limiting piece, and the nut screwing sleeve only has a rotation degree of freedom under the limit 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 tightening control assembly is positioned outside the sleeve penetrating hole and is arranged on the shell; the nut pickup control assembly is located outside the sleeve through hole and is arranged on the nut tightening 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 meshed with the output end gear for transmission; the nut screwing sleeve where the ratchet gear ring is located 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 screwing machine.
The nut tightening control assembly comprises a supporting 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 inside the support frame in a mirror symmetry mode; the root of the left pawl is hinged with the support frame, the top of the left pawl is provided with a ratchet, 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 pulling mechanism through a first flexible cable; the root of the right pawl is hinged with the support frame, the top of the right pawl is provided with a ratchet, 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; the right pawl is connected with the three-channel flexible cable pulling mechanism through a second flexible cable.
The nut pickup 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 in the positioning frame, and a pressing plate reset 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 pulling 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 tightening equipment for the aviation equipment nuts has the characteristics of simple structure and reliable work, can replace a manual mode to complete the nut tightening work, effectively reduces the labor intensity of workers, and can efficiently complete the nut installation tightening work even if the tightening position is in a severe working environment.
Drawings
FIG. 1 is a schematic structural view of a special tightening device for nuts of aircraft equipment according to the present invention;
FIG. 2 is a schematic view of a nut tightening wrench according to the present invention;
FIG. 3 is an exploded view of the nut runner of the present invention;
fig. 4 is a schematic structural view of the nut tightening wrench of the present invention (external shielding members such as a housing, a cover, etc. are not shown);
FIG. 5 is a schematic view of the structure of the nut screwing sleeve of the present invention;
FIG. 6 is a schematic view of the engagement of the nut-screwing sleeve with the left and right pawls of the present invention (initial state);
FIG. 7 is a schematic view of the engagement of the nut-screwing sleeve with the left and right pawls (high torque tightened state) of the present invention;
FIG. 8 is a schematic view of the engagement of the nut-threaded sleeve with the left and right pawls of the present invention (high torque released);
in the figure, a 1-frame, a 2-tightening machine, a 3-screwing motor, a 4-three-channel flexible cable pulling mechanism, a 5-hollow supporting rod, a 6-nut tightening wrench, a 7-shell, an 8-sealing cover, a 9-input end gear, a 10-middle transmission gear set, an 11-output end gear, a 12-nut screwing sleeve, a 13-nut tightening control component, a 14-nut pickup control component, a 15-sleeve limiting piece, a 16-limiting piece stop, a 17-transmission outer gear ring, a 18-ratchet gear ring, a 19-dodecagonal hole, a 20-supporting frame, a 21-left pawl, a 22-right pawl, a 23-left pawl return spring, a 24-right pawl return spring, a 25-positioning frame, a 26-nut pressing plate, a 27-pressing plate return spring, a 28-first flexible cable, a 29-second flexible cable, a 30-third flexible cable and a 31-flexible cable limiting plate.
Detailed Description
The invention will now be described in further detail with reference to the drawings and to specific examples.
As shown in fig. 1 to 8, the special tightening device for the aviation equipment nuts comprises a frame 1, a tightening machine 2, a screwing motor 3, a three-channel flexible cable traction mechanism 4, a hollow supporting rod 5 and a nut tightening 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 supporting rod 5 is fixedly connected with the frame 1, and the nut tightening wrench 6 is connected with the other end of the hollow supporting rod 5; the hollow support rod 5 is coaxially distributed with a motor shaft of the screwing motor 3, a force transmission shaft is arranged in the hollow support rod 5, one end of the force transmission shaft is coaxially 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, an intermediate transmission gear set 10, an output end gear 11, a nut screwing sleeve 12, a nut tightening control assembly 13 and a nut pickup control assembly 14; the input end gear 9, the intermediate transmission gear set 10, the output end gear 11 and the nut screwing sleeve 12 are sequentially arranged in 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 to extend to the outside of the shell 7, and a 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 inside the hollow supporting rod 5; the gear shafts of all 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 meshed with the intermediate transmission gear set 10 for transmission; the gear shaft of the output end gear 11 is rotationally connected with the shell 7 and the sealing cover 8 through bearings, and the output end gear 11 is meshed with the intermediate transmission gear set 10 for transmission; the nut screwing sleeve 12 is arranged in the shell 7 through the sleeve limiting piece 15, and the nut screwing sleeve 12 only has a rotation degree of freedom under the limit of the sleeve limiting piece 15; the sleeve limiting piece 15 is fixedly connected with the shell 7 through a limiting piece stop 16; a sleeve penetrating hole is formed in the shell 7 opposite to the nut screwing sleeve 12; the nut tightening control assembly 13 is positioned outside the sleeve penetrating hole and is arranged on the shell 7; the nut pick-up control assembly 14 is located outside the sleeve through hole and is provided on the nut tightening control assembly 13.
A transmission outer gear ring 17 and a ratchet gear ring 18 are respectively arranged on the outer surface of the nut screwing sleeve 12 along the axial direction; the nut screwing sleeve 12 where the transmission outer gear ring 17 is positioned in the shell 7, and the transmission outer gear ring 17 is meshed with the output end gear 11 for transmission; the nut screwing sleeve 12 where the ratchet ring 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; the nut screwing sleeve 12 is arranged coaxially with the power output shaft of the screwing machine 2.
The nut tightening control assembly 13 comprises a supporting 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 inside 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 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 pulling 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 through the ratchet at the top of the right pawl; a right pawl return spring 24 is provided between the right pawl 22 and the support frame 20; the right pawl 22 is connected with the three-way flexible cable pulling mechanism 4 through a second flexible cable 29.
The nut pick-up control assembly 14 comprises a positioning frame 25 and a nut pressing plate 26; the positioning frame 25 is fixedly connected with the supporting frame 20; the nut pressing plate 26 is arranged in 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 pulling mechanism 4 through a third flexible cable 30; a wire limiting plate 31 for limiting the positions of the first wire, the second wire and the third wire is also provided outside the housing 7.
The following describes a one-time use procedure of the present invention with reference to the accompanying drawings:
firstly, a mechanical arm is selected, the special tightening device for aviation equipment nuts is used as an end effector of the mechanical arm, and the special tightening device is assembled and connected with the mechanical arm through a tightening machine 2.
Two areas are provided within the coverage of the mechanical arm, one being the assembly area of the aircraft equipment and the other being the part area, to which the nut to be mounted is placed.
Firstly, the special tightening equipment for the aviation equipment nuts is moved to a part area through a mechanical arm, so that the nut screwing sleeve 12 in the nut screwing wrench 6 is positioned right above the nuts, and then the nut screwing wrench 6 is controlled to fall until the upper half part of the nuts accurately enters the dodecagonal holes 19 of the nut screwing sleeve 12.
After the nut enters the dodecagonal hole 19 of the nut screwing sleeve 12, the three-channel flexible cable pulling mechanism 4 is started to pay out 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 of the pressing plate reset spring 27.
After the nuts are clamped and fixed on the nut tightening wrench 6, the special tightening equipment for the aviation equipment nuts is moved to an assembly area through the mechanical arm, so that the nuts clamped and fixed on the nut tightening wrench 6 are located right above the screw rods at corresponding positions of the aviation equipment, and then the nut tightening wrench 6 is controlled to fall until the nuts accurately fall to the top ends of the screw rods.
When the nut falls to the top end of the screw rod, the three-channel flexible cable pulling mechanism 4 is started to wind up the 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 compressed 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 rotating 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 is driven along the axial direction of the screw under the control of the mechanical arm in the screwing process of the nut until the nut is screwed in place.
When the nut is screwed in place on the screw rod, the three-channel flexible cable pulling mechanism 4 is started firstly, the first flexible cable 28 is paid out, under the action of the thrust of the left pawl reset spring 23, the top ratchet 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 frame 1 to swing, and as the frame 1 is fixedly connected with the shell 7 of the nut screwing wrench 6 into a whole through the hollow support rod 5, the swing motion and the synchronous motion of the frame 1 are converted into the swing motion of the nut screwing wrench 6, and finally the nut is screwed in a large moment through the swing motion of the nut screwing wrench 6.
When the nut is screwed up with large torque, the first screwed up nut is loosened according to the process requirement, and then is screwed up again, so that in order to meet the process requirement, the three-channel flexible cable pulling mechanism 4 is started, the first flexible cable 28 is wound up, the left pawl 21 is pulled away from the ratchet tooth ring 18 through the first flexible cable 28, and the left pawl return spring 23 is restored to a compressed state; simultaneously, pay off the second flexible cable 29, under the thrust effect of right pawl reset spring 24, can make right pawl 22 top ratchet and the ratchet ring 18 meshing on the nut screwing sleeve 12, then reverse start screwing machine 2, drive frame 1 by screwing machine 2's power take off shaft and swing, and then drive nut screwing wrench 6 in step and swing, finally implement the big moment to the nut and loosen through the swing motion of nut screwing wrench 6.
After the nut is loosened with large moment, under the process requirement, the three-channel flexible cable pulling mechanism 4 is started to take up the second flexible cable 29, the right pawl 22 is pulled away from the ratchet tooth ring 18 through the second flexible cable 29, and the right pawl return spring 24 is restored to a compressed state; simultaneously, pay off first flexible cable 28, under the thrust effect of left pawl reset spring 23, can make left pawl 21 top ratchet and the ratchet ring 18 meshing on the nut screwing sleeve 12, then forward start screwing machine 2, drive frame 1 by screwing machine 2's power output shaft and swing, and then drive nut screwing wrench 6 in step and swing, finally implement big moment to loosen the nut through the swing motion of nut screwing wrench 6 to realize the secondary of nut and screw up.
After the nut is completed with the process requirements of 'tightening, loosening and re-tightening', the three-channel flexible cable pulling mechanism 4 is started, the first flexible cable 28 is wound, 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 a compressed state, at the moment, the left pawl 21 and the right pawl 22 are in an initial state of being separated from the ratchet gear ring 18, the nut tightening wrench 6 is controlled to move upwards, the tightened nut is separated from the dodecagonal hole 19 of the nut screwing sleeve 12, finally, the special tightening device for aviation equipment nuts is moved to a part area again through a mechanical arm, the installation process of the first nut is repeated, and the subsequent installation and tightening work of other nuts is completed.
The embodiments are not intended to limit the scope of the invention, but rather are intended to cover all equivalent implementations or modifications that can be made without departing from the scope of the invention.
Claims (1)
1. Special screwing equipment for aviation equipment nuts is characterized in that: comprises a frame, a tightening machine, a screwing motor, a three-way flexible cable pulling mechanism, a hollow supporting 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-way flexible cable pulling mechanism are both arranged on the frame; one end of the hollow supporting rod is fixedly connected with the frame, and the nut tightening wrench is connected to the other end of the hollow supporting rod; the hollow support rod and the 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 tightening wrench comprises a shell, a sealing cover, an input end gear, an intermediate transmission gear set, an output end gear, a nut screwing sleeve, a nut tightening control assembly and a nut pickup control assembly; the input end gear, the intermediate transmission gear set, the output end gear and the nut screwing sleeve are sequentially arranged in 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 to extend 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 intermediate transmission gears in the intermediate transmission gear set are rotationally connected with the shell and the sealing cover through bearings, and the input end gears are meshed with the intermediate transmission gear set for transmission; the gear shaft of the output end gear is rotationally connected with the shell and the sealing cover through bearings, and the output end gear is meshed with the intermediate transmission gear set for transmission; the nut screwing sleeve is arranged in the shell through the sleeve limiting piece, and the nut screwing sleeve only has a rotation degree of freedom under the limit 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 tightening control assembly is positioned outside the sleeve penetrating hole and is arranged on the shell; the nut pickup control assembly is positioned outside the sleeve penetrating hole and is arranged on the nut tightening 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 meshed with the output end gear for transmission; the nut screwing sleeve where the ratchet gear ring is located 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 screwing machine;
the nut tightening control assembly comprises a supporting 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 inside the support frame in a mirror symmetry mode; the root of the left pawl is hinged with the support frame, the top of the left pawl is provided with a ratchet, 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 pulling mechanism through a first flexible cable; the root of the right pawl is hinged with the support frame, the top of the right pawl is provided with a ratchet, 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; the right pawl is connected with the three-channel flexible cable pulling mechanism through a second flexible cable;
the nut pickup 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 in the positioning frame, and a pressing plate reset 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 pulling 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 CN114986137A (en) | 2022-09-02 |
| CN114986137B true 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114986137B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| JPH0671065U (en) * | 1993-03-19 | 1994-10-04 | 旭金属工業株式会社 | Ratchet wrench and tightening tool |
| KR101415580B1 (en) * | 2014-05-02 | 2014-07-04 | 주식회사 우정티엠에스 | Open type 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 |
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| Publication number | Publication date |
|---|---|
| CN114986137A (en) | 2022-09-02 |
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