CN210476825U - Aircraft air cycle machine nut dismouting frock - Google Patents
Aircraft air cycle machine nut dismouting frock Download PDFInfo
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- CN210476825U CN210476825U CN201921082482.4U CN201921082482U CN210476825U CN 210476825 U CN210476825 U CN 210476825U CN 201921082482 U CN201921082482 U CN 201921082482U CN 210476825 U CN210476825 U CN 210476825U
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- nut
- pull rod
- air cycle
- rod
- cycle machine
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Abstract
The utility model relates to a special frock field is dismantled to the nut, specifically is an aircraft air cycle machine nut dismouting frock, include with pneumatic cylinder complex shell, still include: the nut fixing rod is arranged in the shell, matched with the hydraulic cylinder and used for realizing fixation; the pull rod is arranged in the nut fixing rod and used for realizing the dismounting of the nut and the connecting rod; the piston block sets up in the pneumatic cylinder and cooperates with the pull rod for make the pull rod extension reduce the external diameter, utilize the hydraulic pressure force of pneumatic cylinder to elongate the pull rod, the pull rod atress is even and controllable, under the condition that does not damage lock nut and connecting rod screw thread, solves lock nut's dismouting problem.
Description
Technical Field
The utility model relates to a special frock field is dismantled to the nut, specifically is an aircraft air cycle machine nut dismouting frock.
Background
The rotating part of the air cycle machine is arranged on the same hollow rotating shaft, the connecting rod penetrates through the center of the rotating shaft, and then the two ends of the connecting rod are locked by nuts, so that the aim of fixing the rotating part on the shaft is fulfilled, and the locking nut is detached from or arranged on the connecting rod in the disassembling or assembling process of the air cycle machine. Because be interference screw-thread fit between connecting rod and the nut, if only with the dismouting of universal wrench, can't carry out the dismouting, the dismouting of forcing will lead to the nut to damage and unable fastening nut, leads to the serious quality accident that the nut drops to appear after the air cycle machine installation, causes economic loss.
Disclosure of Invention
In order to solve the problem, the utility model provides an aircraft air cycle machine nut dismouting frock.
The utility model provides an aircraft air cycle machine nut dismouting frock, includes with pneumatic cylinder complex shell, still includes:
the nut fixing rod is arranged in the shell, matched with the hydraulic cylinder and used for realizing fixation;
the pull rod is arranged in the nut fixing rod and used for realizing the dismounting of the nut and the connecting rod;
and the piston block is arranged in the hydraulic cylinder and is matched with the pull rod, so that the outer diameter of the pull rod is reduced by extending.
The nut fixing rod is provided with a plurality of groups of pins for fixing holes on the nut fixing rod.
The outside of the hydraulic cylinder is provided with a cover for tightly covering, and a baffle plate is arranged between the piston block and the cover.
The end part of the piston block is provided with a lining.
The utility model has the advantages that: the pull rod is lengthened by utilizing the hydraulic pressure of the hydraulic cylinder, the stress of the pull rod is uniform and controllable, and the problem of dismounting the locking nut is solved under the condition that the threads of the locking nut and the connecting rod are not damaged.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of the structure of the present invention;
fig. 2 is a left side structure diagram of the present invention;
fig. 3 is a schematic diagram of a right side structure of the present invention;
fig. 4 is a schematic structural view of a-a of fig. 1 according to the present invention.
Detailed Description
In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, and the utility model is further explained below.
As shown in fig. 1 to 4, an aircraft air cycle machine nut dismounting tool comprises a housing 1 matched with a hydraulic cylinder 5, and further comprises:
the nut fixing rod 3 is arranged in the shell 1 and matched with the hydraulic cylinder 5 for realizing fixation;
the pull rod 4 is arranged in the nut fixing rod 3 and used for realizing the dismounting of the nut and the connecting rod;
and a piston block 6 disposed in the hydraulic cylinder 5 and engaged with the drawbar 4 for extending the drawbar 4 to reduce the outer diameter.
In fig. 4, a is an oil inlet and an oil outlet, and b is a connecting rod.
Fix the air cycle machine on external support, will the utility model discloses place and screw up on the nut, utilize hand pump to give the loading force of loading 850psig, dismantle with the hand rapidly and screw up the nut, reach the purpose of decomposing and assembly nut.
The pull rod 4 is lengthened by utilizing the hydraulic pressure of the hydraulic cylinder 5, the stress of the pull rod 4 is uniform and controllable, and the problem of dismounting the locking nut is solved under the condition that the locking nut and the connecting rod thread are not damaged.
The nut fixing rod 3 is provided with a plurality of groups of pins 2 for fixing holes on the nut fixing rod 3.
A cover 9 for tightly covering is arranged outside the hydraulic cylinder 5, and a baffle 7 is arranged between the piston block 6 and the cover 9.
The piston block 6 is provided with a bushing 8 at its end.
The utility model discloses a use method: two pins 2 of nut dead lever 3 facial make-up, during the use insert these two pins 2 and be used for the fixed hole on the lock nut, simultaneously the screw thread screw in pull rod 4 of connecting rod afterbody in, utilize the hand pump to supply the pressure oil of specified value for hydraulic cylinder 5 through the business turn over hydraulic fluid port, hydraulic pressure force promotes piston block 6 and toward the outer motion, bush 8 will do all can transmit to pull rod 4 simultaneously, make pull rod 4 stretch out along with piston block 6 outwards, lengthen the pull rod, it pulls down lock nut to rotate nut dead lever 3 this moment.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and what is described in the specification are the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are intended to fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides an aircraft air cycle machine nut dismouting frock, includes shell (1) with pneumatic cylinder (5) complex, its characterized in that: further comprising:
the nut fixing rod (3) is arranged in the shell (1), is matched with the hydraulic cylinder (5) and is used for realizing fixation;
the pull rod (4) is arranged in the nut fixing rod (3) and is used for realizing the dismounting of the nut and the connecting rod;
and the piston block (6) is arranged in the hydraulic cylinder (5) and is matched with the pull rod (4) and used for extending the pull rod (4) to reduce the outer diameter.
2. The aircraft air cycle machine nut dismounting tool according to claim 1, characterized in that: the nut fixing rod (3) is provided with a plurality of groups of pins (2) for fixing holes on the nut fixing rod (3).
3. The aircraft air cycle machine nut dismounting tool according to claim 1, characterized in that: the outside of pneumatic cylinder (5) be provided with be used for the lid (9) that covers tightly, piston block (6) and lid (9) between be provided with baffle (7).
4. The aircraft air cycle machine nut dismounting tool according to claim 1, characterized in that: the end part of the piston block (6) is provided with a lining (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921082482.4U CN210476825U (en) | 2019-07-11 | 2019-07-11 | Aircraft air cycle machine nut dismouting frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921082482.4U CN210476825U (en) | 2019-07-11 | 2019-07-11 | Aircraft air cycle machine nut dismouting frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210476825U true CN210476825U (en) | 2020-05-08 |
Family
ID=70530605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921082482.4U Active CN210476825U (en) | 2019-07-11 | 2019-07-11 | Aircraft air cycle machine nut dismouting frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210476825U (en) |
-
2019
- 2019-07-11 CN CN201921082482.4U patent/CN210476825U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |