CN220762501U - Auxiliary tool for assembling waving support arm of helicopter rotor system - Google Patents
Auxiliary tool for assembling waving support arm of helicopter rotor system Download PDFInfo
- Publication number
- CN220762501U CN220762501U CN202322306410.6U CN202322306410U CN220762501U CN 220762501 U CN220762501 U CN 220762501U CN 202322306410 U CN202322306410 U CN 202322306410U CN 220762501 U CN220762501 U CN 220762501U
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- rotor system
- helicopter rotor
- bolt
- positioning block
- joint
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- 238000005452 bending Methods 0.000 claims description 3
- 235000009566 rice Nutrition 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000587161 Gomphocarpus Species 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
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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
The utility model relates to an auxiliary fixture for assembling a waving support arm of a helicopter rotor system, wherein the waving support arm is connected with a first connecting piece through a nut to be connected and a bolt to be connected, and the first connecting piece is connected with a central piece of the helicopter rotor system; the tool comprises a positioning block, a supporting block, a tool fastener, a locking screw, a bolt anti-rotation pin and an operating handle. The tool has strong adaptability, the tool fixing block, the supporting block and the cross screw are all separated, the disassembly is convenient, and the component can be replaced at any time and any place according to the product type structure.
Description
Technical Field
The utility model relates to the technical field of tooling design, and particularly provides an auxiliary tooling for a flapping support arm of a helicopter rotor system.
Background
The cross countersunk head bolt is suitable for the occasion that the nail head is not allowed to be exposed, but a corresponding conical countersunk head hole is required to be manufactured on the surface of the part with the hole. The torque wrench is widely applied to helicopter rotor system assembly, is commonly used for connecting two connected parts, and requires different grades of torque values to be applied through the torque wrench according to different structural parts, so that tightening force required by a product drawing is achieved.
For the helicopter rotor system to wave the connecting piece and the pitch-changing rocker arm in the support arm assembly, this type of operation is unable to be realized in the maintenance operation on the machine, only can assemble after the wave support arm and the central part are disassembled, and screw up the cross countersunk head bolt that connecting piece and pitch-changing rocker arm are fastened, need many operating personnel to use many kinds of tools to cooperate the operation, can accomplish and wave the support arm assembly, and maintenance operation on the machine is loaded down with trivial details, and the human cost is high, assembly efficiency is low.
Disclosure of Invention
The purpose of the utility model is that: in order to solve the problem of complicated operation and assembly processes on the machine, the utility model provides the assembly fixture for the swing support arm, which is convenient and suitable for the operation on the machine, and realizes single installation.
The technical scheme of the utility model is as follows:
providing a helicopter rotor system waving support arm assembly auxiliary tool, wherein the waving support arm is connected with a first connecting piece through a nut 8 to be connected and a bolt 9 to be connected, and the first connecting piece is connected with a helicopter rotor system central piece;
the device comprises a positioning block 1, a supporting block 2, a fixture fastener 3, a locking screw 4, a bolt anti-rotation pin 5 and an operating handle 6;
the two sides of the positioning block are provided with longitudinal adjusting holes, the bolt anti-rotation pin is arranged in the longitudinal adjusting holes, and the bolt anti-rotation pin can longitudinally displace in the longitudinal adjusting holes; the two sides of the positioning block are provided with locking threaded holes, the locking threaded holes are vertically matched with the longitudinal adjusting holes, the locking screws 4 are in threaded fit with the locking threaded holes, the locking threaded holes are communicated with the longitudinal adjusting holes, and the bolt anti-rotation pins 5 can be locked and fixed by rotating the locking screws 4;
the end part of the bolt anti-rotation pin 5 is provided with a first joint, the first joint and a nut of a bolt to be connected form plug-in fit, and the plug-in fit can limit the rotation of the bolt to be connected;
a clamping structure is formed between the positioning block 1 and the supporting block 2, and the fixture fastener 3 can adjust the distance between the positioning block 1 and the supporting block 2 and fasten and fix the positioning block 1 and the supporting block 2 by rotating;
the supporting block 2 is fixed with an operating handle 6.
Advantageously or alternatively, the first joint is a straight, cross, rice, hexagon socket or hexagon socket; the nuts of the bolts to be connected are straight, cross, rice-shaped, hexagonal or hexagonal countersunk heads.
Advantageously or alternatively, the locking screw is a socket head cap screw or a cross screw.
Advantageously or alternatively, said support block 2 is fixed with a symmetrical operating handle 6. The tool is guaranteed to rotate and loosen on the connecting piece.
Advantageously or alternatively, the positioning block is a wedge block.
Advantageously or alternatively, the gripping surface of the support block 2 has a concave-convex structure. The clamping stability is improved.
Advantageously or alternatively, the tooling fastener is an adjusting bolt assembly comprising a threaded rod and a nut; the threaded rod passes through the positioning block 1 and the supporting block 2 and then is locked with the nut.
Advantageously or alternatively, said operating handle 6 is capable of angular bending adjustment. The applicability is stronger.
The utility model has the advantages that: the tool has strong adaptability, the tool fixing block, the supporting block and the cross screw are all separated, the disassembly is convenient, and the component can be replaced at any time and any place according to the product type structure.
The operation is simple and convenient, efficiency and installation quality are improved obviously, and the tool has more obvious functional effect when being operated under two or more operators in the prior art. Because the tool is used for fixing the lug end of the connecting piece fork, an operator can carry out the force application screwing moment of the connecting bolt in a limiting and fixing mode, so that the connecting piece and the pitch-variable rocker arm are installed and fixed, the operation efficiency is improved obviously, and the labor cost and the operation intensity are reduced greatly.
Drawings
FIG. 1 is a schematic diagram of a swing arm assembly tooling;
FIG. 2 is a front view of a swing arm assembly tooling;
FIG. 3 is a side view of a swing arm assembly tooling;
FIG. 4 is a schematic diagram illustrating the operation of a swing arm assembly tooling;
FIG. 5 is a schematic view of the swing arm assembled with the center piece;
FIG. 6 is a schematic diagram illustrating the operation of a swing arm assembly tooling;
wherein: the device comprises a fixing block 1, a supporting block 2, a switching bolt 3, a hexagon socket screw 4, a cross screw 5, a quick clamp 6, a connecting piece 7, a nut 8, a countersunk head 9, a waving support arm 10 and a central piece 11.
Detailed Description
The disclosed examples will be described more fully with reference to the accompanying drawings, in which some, but not all of the disclosed examples are shown. Indeed, many different examples may be described and should not be construed as limited to the examples set forth herein. Rather, these examples are described so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Referring to the drawings, fig. 1-6, a helicopter rotor system flapping support arm assembly auxiliary tool is provided, wherein the flapping support arm is connected with a first connecting piece through a nut to be connected 8 and a bolt to be connected 9, and the first connecting piece is connected with a central piece of the helicopter rotor system;
the device comprises a positioning block 1, a supporting block 2, a fixture fastener 3, a locking screw 4, a bolt anti-rotation pin 5 and an operating handle 6;
the two sides of the positioning block are provided with longitudinal adjusting holes, the bolt anti-rotation pin is arranged in the longitudinal adjusting holes, and the bolt anti-rotation pin can longitudinally displace in the longitudinal adjusting holes; the two sides of the positioning block are provided with locking threaded holes, the locking threaded holes are vertically matched with the longitudinal adjusting holes, the locking screws 4 are in threaded fit with the locking threaded holes, the locking threaded holes are communicated with the longitudinal adjusting holes, and the bolt anti-rotation pins 5 can be locked and fixed by rotating the locking screws 4;
the end part of the bolt anti-rotation pin 5 is provided with a first joint, the first joint and a nut of a bolt to be connected form plug-in fit, and the plug-in fit can limit the rotation of the bolt to be connected;
a clamping structure is formed between the positioning block 1 and the supporting block 2, and the fixture fastener 3 can adjust the distance between the positioning block 1 and the supporting block 2 and fasten and fix the positioning block 1 and the supporting block 2 by rotating; the supporting block 2 is fixed with an operating handle 6.
Advantageously or alternatively, the first joint is a straight, cross, rice, hexagon socket or hexagon socket; the nuts of the bolts to be connected are straight, cross, rice-shaped, hexagonal or hexagonal countersunk heads.
Advantageously or alternatively, the locking screw is a socket head cap screw or a cross screw.
Advantageously or alternatively, said support block 2 is fixed with a symmetrical operating handle 6. The tool is guaranteed to rotate and loosen on the connecting piece.
Advantageously or alternatively, the positioning block is a wedge block.
Advantageously or alternatively, the gripping surface of the support block 2 has a concave-convex structure. The clamping stability is improved.
Advantageously or alternatively, the tooling fastener is an adjusting bolt assembly comprising a threaded rod and a nut; the threaded rod passes through the positioning block 1 and the supporting block 2 and then is locked with the nut.
Advantageously or alternatively, said operating handle 6 is capable of angular bending adjustment. The applicability is stronger.
Advantageously or alternatively, the operating handle 6 and the tool fastener constitute a quick release locking mechanism.
The fixed block 1 and the supporting block 2 are wrapped and clamped by the fork opening support arm for the adjusting bolt component through the fixture fastener. The bolt anti-rotation pin 5 rotates to a specified position in the longitudinal adjusting hole, and the bolt anti-rotation pin 5 is locked and limited by rotating the locking screw. The swing support arm is connected with the first connecting piece through the nut 8 to be connected and the bolt 9 to be connected, so that moment can be applied to complete on-machine or off-machine assembly.
By adopting the utility model, the freedom degree of forward and backward displacement and rotation of the bolt 9 to be connected is limited, and the nut 8 to be connected can be easily fastened and connected, so that the assembly mode of the swing support arm is improved, the assembly of the process can be completed by on-machine operation, and the first connecting piece and the central piece 11 are prevented from being decomposed. The assembly difficulty is greatly reduced, the assembly efficiency is improved, and the personnel cost is reduced.
The description of the different advantageous arrangements has been presented for purposes of illustration and description, but is not intended to be exhaustive or limited to the examples in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Additionally, the different advantageous examples may describe different advantages compared to other advantageous examples. The example or examples selected are chosen and described in order to best explain the principles of the examples, the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various examples with various modifications as are suited to the particular use contemplated.
Claims (8)
1. Helicopter rotor system waves support arm assembly auxiliary fixtures, its characterized in that: the swing support arm is connected with a first connecting piece through a nut to be connected and a bolt to be connected, and the first connecting piece is connected with a central piece of the helicopter rotor system;
the device comprises a positioning block, a supporting block, a fixture fastener, a locking screw, a bolt anti-rotation pin and an operating handle;
the two sides of the positioning block are provided with longitudinal adjusting holes, the bolt anti-rotation pin is arranged in the longitudinal adjusting holes, and the bolt anti-rotation pin can longitudinally displace in the longitudinal adjusting holes; the two sides of the positioning block are provided with locking threaded holes, the locking threaded holes are vertically matched with the longitudinal adjusting holes, the locking screws are in threaded fit with the locking threaded holes, the locking threaded holes are communicated with the longitudinal adjusting holes, and the bolt anti-rotation pins can be locked and fixed by rotating the locking screws;
the end part of the bolt anti-rotation pin is provided with a first joint, the first joint and a nut of the bolt to be connected form plug-in fit, and the plug-in fit can limit the rotation of the bolt to be connected;
a clamping structure is formed between the positioning block and the supporting block, and the fixture fastener can adjust the distance between the positioning block and the supporting block and fasten and fix the positioning block and the supporting block through rotation;
the supporting block is fixed with an operating handle.
2. The helicopter rotor system flapping arm assembly fixture of claim 1, wherein: the first joint is a straight joint, a cross joint, a rice joint, an inner hexagonal joint or an outer hexagonal joint; the nuts of the bolts to be connected are straight, cross, rice-shaped, hexagonal or hexagonal countersunk heads.
3. The helicopter rotor system flapping arm assembly fixture of claim 1, wherein: the locking screw is an inner hexagon screw or a cross screw.
4. The helicopter rotor system flapping arm assembly fixture of claim 1, wherein: the supporting block is fixed with symmetrical operation handles.
5. The helicopter rotor system flapping arm assembly fixture of claim 1, wherein: the positioning block is a wedge block.
6. The helicopter rotor system flapping arm assembly fixture of claim 1, wherein: the package of supporting shoe presss from both sides the face and has concave-convex structure.
7. The helicopter rotor system flapping arm assembly fixture of claim 1, wherein: the tool fastener is an adjusting bolt assembly and comprises a threaded rod and a nut; the threaded rod passes through the positioning block and the supporting block and then is locked with the nut.
8. The helicopter rotor system flapping arm assembly fixture of claim 1, wherein: the operating handle can be adjusted in angle bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322306410.6U CN220762501U (en) | 2023-08-28 | 2023-08-28 | Auxiliary tool for assembling waving support arm of helicopter rotor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322306410.6U CN220762501U (en) | 2023-08-28 | 2023-08-28 | Auxiliary tool for assembling waving support arm of helicopter rotor system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220762501U true CN220762501U (en) | 2024-04-12 |
Family
ID=90616723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322306410.6U Active CN220762501U (en) | 2023-08-28 | 2023-08-28 | Auxiliary tool for assembling waving support arm of helicopter rotor system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220762501U (en) |
-
2023
- 2023-08-28 CN CN202322306410.6U patent/CN220762501U/en active Active
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