CN216229176U - Device for mounting hollow core of helicopter part - Google Patents
Device for mounting hollow core of helicopter part Download PDFInfo
- Publication number
- CN216229176U CN216229176U CN202122895061.7U CN202122895061U CN216229176U CN 216229176 U CN216229176 U CN 216229176U CN 202122895061 U CN202122895061 U CN 202122895061U CN 216229176 U CN216229176 U CN 216229176U
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- special bolt
- sleeve
- nut
- bolt
- straight rod
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Abstract
The utility model discloses a device for mounting a hollow core of a helicopter part, which relates to the field of mounting of helicopter parts and comprises a special bolt, wherein one end of a straight rod part of the special bolt is a threaded part, the other end of the straight rod part of the special bolt is a clamping part, a large gasket is movably sleeved on the straight rod part of the special bolt, a nut is connected to the threaded part of the special bolt in a threaded manner, a sleeve is movably sleeved on the special bolt between the large gasket and the nut, and a small gasket is movably sleeved on the special bolt between the sleeve and the nut. The special bolt is used for positioning and mounting the shell and the core, and the nut and the bolt are matched to apply pressure to the shell and the core to mount the core.
Description
Technical Field
The utility model relates to the field of installation of helicopter parts, in particular to a device for installing a hollow core of a helicopter part.
Background
The synchronous rotation of the rotary tilting disk and the main hub of the helicopter is an important prerequisite for controlling a rotor wing of the helicopter in real time, the rotary torque arm is connected between the rotary torque arm and the main hub to ensure the synchronous rotation of the rotary torque arm and the main hub, the rotary torque arm is connected with the main hub through a trunnion and a bolt, and the working surface is mainly a bushing embedded in the rotary torque arm.
When the rotary torque arm is installed and maintained, scratch damage often exists on the working surface of the lining, the shell of the rotary torque arm is intact, and only the lining is replaced, so that the maintenance cost can be greatly reduced.
The rotating torque arm needs to be detached from the helicopter when the bushing is installed, primer needs to be coated on an installation surface to prevent scratching and corrosion when the bushing is installed, the bushing and the rotating torque arm are matched too tightly, and the bushing and the rotating torque arm can be damaged if the direction of force during installation cannot be guaranteed to be correct.
It has been found that the following problems need to be solved to remove the liner: the rotary torsion arm shell has no clamping position, and a clamping and fixing part needs to be designed on the mounting device; force along the axis direction of the bush needs to be applied during installation; the bush needs the whole synchronous installation, prevents that the card from damaging rotatory torque arm casing in rotatory torque arm.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem, the utility model aims to provide a device for mounting a hollow core of a helicopter part, so as to solve the technical problems that the existing helicopter torsion arm core is inconvenient to mount and can damage a shell.
In order to achieve the purpose, the utility model provides the following technical scheme: a device for mounting a hollow core of a helicopter part comprises a special bolt, wherein one end of a straight rod part of the special bolt is a threaded part, the other end of the straight rod part of the special bolt is a clamping part, a large gasket is movably sleeved on the straight rod part of the special bolt, a nut is connected to the threaded part of the special bolt in a threaded mode, a sleeve is movably sleeved on the special bolt between the large gasket and the nut, and a small gasket is movably sleeved on the special bolt between the sleeve and the nut.
Through adopting above-mentioned technical scheme, big gasket can be when the installation pad under casing or the core that has installed, prevents that casing or one side core that has installed from receiving the extrusion injury, and the nut can promote the sleeve and make the core installation get into the casing, and little gasket can make the even power transmission of nut to the sleeve on.
The utility model further provides that the diameter of the thread part of the special bolt is smaller than that of the straight rod part of the special bolt.
By adopting the technical scheme, the diameter of the thread part of the special bolt is smaller than that of the straight rod part, so that steps can be formed on the special bolt.
The utility model is further arranged in such a way that the size of the through hole in the sleeve is matched with that of the bush, and a boss is arranged at one end of the sleeve close to the nut.
Through adopting above-mentioned technical scheme, the inside through-hole size of sleeve and bush cooperation, the sleeve parcel bush of can being convenient for, the boss can prevent that the shim from being impressed in telescopic through-hole.
The special bolt clamping part is divided into a boss and a clamping block, and the boss is positioned between the clamping block and the straight rod part of the special bolt.
By adopting the technical scheme, the boss can limit the position of the large gasket, and the clamping block can facilitate the bench clamp to clamp the specially-made bolt.
The utility model is further set that the special bolt, the sleeve and the large gasket are all made of copper alloy.
By adopting the technical scheme, the bolt, the sleeve and the large gasket are made of copper alloy, so that the device can be prevented from damaging the shell.
In summary, the utility model mainly has the following beneficial effects:
the special bolt is used for positioning and mounting the shell and the core, and the nut and the bolt are matched to apply pressure to the shell and the core to mount the core.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a front view of the featured bolt of the present invention;
FIG. 3 is a schematic view of a large gasket according to the present invention;
FIG. 4 is a schematic structural view of the sleeve of the present invention;
FIG. 5 is a schematic view of a small pad of the present invention;
FIG. 6 is a schematic structural view of the nut of the present invention;
FIG. 7 is an exploded view of the core and housing of a rotary torsion arm of a helicopter.
In the figure: 1. specially manufacturing bolts; 2. a large gasket; 3. a sleeve; 4. a small pad; 5. and a nut.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
The following describes an embodiment of the present invention based on its overall structure.
A device for mounting a hollow core of a helicopter part comprises a special bolt 1, wherein one end of a straight rod part of the special bolt 1 is a threaded part, the other end of the straight rod part of the special bolt 1 is a clamping part, a large gasket 2 is movably sleeved on the straight rod part of the special bolt 1 and can be cushioned under a shell or a mounted core when the special bolt 1 is mounted to prevent the shell or the mounted core from being damaged by extrusion, a nut 5 is connected to the threaded part of the special bolt 1 in a threaded manner, a sleeve 3 is movably sleeved on the special bolt 1 between the large gasket 2 and the nut 5, the nut 5 can push the sleeve 3 to enable the core to be mounted into the shell, and a small gasket 4 is movably sleeved on the special bolt 1 between the sleeve 3 and the nut 5 to enable the nut 5 to evenly transmit force to the sleeve 3.
Referring to fig. 2, the diameter of the threaded portion of the special bolt 1 is smaller than the diameter of the straight rod portion of the special bolt 1, so that the special bolt 1 is stepped.
Referring to fig. 4, the size of the through hole inside the sleeve 3 is matched with the bushing, so that the sleeve 3 can wrap the bushing conveniently, and a boss is arranged at one end of the sleeve 3 close to the nut 5, so as to prevent the small gasket 4 from being pressed into the through hole of the sleeve 3.
Referring to fig. 1 and 2, the clamping portion of the special bolt 1 is divided into a boss and a clamping block, the boss is located between the clamping block and the straight rod portion of the special bolt 1, the boss can limit the position of the large gasket 2, and the clamping block can facilitate a bench clamp to clamp the special bolt 1.
Referring to fig. 1-4, the specially made bolt 1, the sleeve 3 and the large washer 2 are made of copper alloy, so as to prevent the device from damaging the housing.
The working principle of the utility model is as follows: when in use, the large gasket 2 is arranged on the special bolt 1, the core body to be arranged is sleeved into the special bolt 1 towards the thread part of the special bolt 1, then the shell body of the core body to be arranged is sleeved into the special bolt 1 towards the core body, then the sleeve 3 is sleeved into the special bolt 1, the large-diameter part faces the shell to prevent the core body on the other side of the shell from being damaged, a small gasket 4 and a nut 5 are arranged on the special bolt 1, a nut 5 is slightly tightened to fasten the device and the components, finally the clamping part of the special bolt 1 is clamped on the bench clamp to fasten, the nut 5 can be rotated clockwise, the nut 5 applies downward force to the sleeve 3, the sleeve 3 drives the shell to move downwards, the polished rod of the specially-made bolt 1 is matched with the core body on the other side to enable the force application direction to be unchanged, the head of the specially-made bolt 1 can be propped against the core body and extrude the core body into the shell body, the core body completely enters the shell body, and the installation is completed when the size of the installed shell body is checked.
Although embodiments of the present invention have been shown and described, the present embodiments are merely illustrative of the present invention and are not intended to limit the present invention, and the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and those skilled in the art can make modifications, substitutions, variations, etc. of the embodiments as required without departing from the principle and spirit of the present invention, but within the scope of the claims of the present invention.
Claims (5)
1. A device for mounting a hollow core of a helicopter component comprises a specially-made bolt (1) and is characterized in that: the special bolt is characterized in that one end of a straight rod part of the special bolt (1) is a threaded part, the other end of the straight rod part of the special bolt (1) is a clamping part, a large gasket (2) is movably sleeved on the straight rod part of the special bolt (1), a nut (5) is in threaded connection with the threaded part of the special bolt (1), a sleeve (3) is movably sleeved on the special bolt (1) between the large gasket (2) and the nut (5), and a small gasket (4) is movably sleeved on the special bolt (1) between the sleeve (3) and the nut (5).
2. A device for hollow core mounting of helicopter components according to claim 1 wherein: the diameter of the thread part of the special bolt (1) is smaller than that of the straight rod part of the special bolt (1).
3. A device for hollow core mounting of helicopter components according to claim 1 wherein: the size of the through hole in the sleeve (3) is matched with the bush, and a boss is arranged at one end, close to the nut (5), of the sleeve (3).
4. A device for hollow core mounting of helicopter components according to claim 1 wherein: the special bolt (1) clamping part is divided into a boss and a clamping block, and the boss is located between the clamping block and the straight rod part of the special bolt (1).
5. A device for hollow core mounting of helicopter components according to claim 1 wherein: the special bolt (1), the sleeve (3) and the large gasket (2) are all made of copper alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122895061.7U CN216229176U (en) | 2021-11-24 | 2021-11-24 | Device for mounting hollow core of helicopter part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122895061.7U CN216229176U (en) | 2021-11-24 | 2021-11-24 | Device for mounting hollow core of helicopter part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216229176U true CN216229176U (en) | 2022-04-08 |
Family
ID=80956981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122895061.7U Active CN216229176U (en) | 2021-11-24 | 2021-11-24 | Device for mounting hollow core of helicopter part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216229176U (en) |
-
2021
- 2021-11-24 CN CN202122895061.7U patent/CN216229176U/en active Active
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