CN219649664U - Tail rotor damper assembly rod end joint bearing fixing clamp - Google Patents
Tail rotor damper assembly rod end joint bearing fixing clamp Download PDFInfo
- Publication number
- CN219649664U CN219649664U CN202320555579.2U CN202320555579U CN219649664U CN 219649664 U CN219649664 U CN 219649664U CN 202320555579 U CN202320555579 U CN 202320555579U CN 219649664 U CN219649664 U CN 219649664U
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- China
- Prior art keywords
- assembly
- tail rotor
- rod end
- subassembly
- rotor damper
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- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model belongs to the field of machining and manufacturing, and relates to a fixing clamp for a rod end joint bearing of a tail rotor damper assembly. Including base (1), fixed support subassembly (2), sliding support subassembly (3), slide rail subassembly (4) and screw thread piece (5), through two levels and equal altitude support subassemblies and screw thread piece, realize rod end joint bearing's fixed and guarantee parallelly, make one end support can follow tail-rotor damper subassembly axis direction follow-up through using slide rail subassembly, make things convenient for operating personnel to install, adapt to the difference of different tail-rotor damper subassembly both ends joint bearing centre-to-centre distances, product quality is stable, assembly efficiency also obtains improving.
Description
Technical Field
The utility model belongs to the field of machining and manufacturing, and relates to a fixing clamp for a rod end joint bearing of a tail rotor damper assembly.
Background
The tail rotor damper assembly is a key component of a helicopter tail rotor hub, and the assembly quality of the tail rotor damper assembly must be strictly controlled in order to ensure the performance requirements of the tail rotor hub. The viscoelastic damper of the tail rotor damper assembly is connected with rod end joint bearings at two ends through threads, and fixed by tightening a certain moment value through a compression nut. The technical requirement is that the rod end joint bearings at the two ends of the damper are parallel, but the existing tool and method cannot well guarantee the requirement when torque is applied to the compression nut.
Disclosure of Invention
A special fixture is designed for fixing rod end joint bearings when tightening torque is applied to two ends of a tail rotor damper assembly, and the rod end joint bearings at two ends are guaranteed to be parallel after the tightening torque is applied.
Technical proposal
The utility model belongs to the field of machining and manufacturing,
the utility model provides a tail rotor damper assembly rod end joint bearing mounting fixture, including base (1), fixed support subassembly (2), sliding support subassembly (3), slide rail subassembly (4) and screw thread piece (5), wherein, screw thread round pin (7) of fixed support subassembly (2) are through threaded connection on fixed support subassembly (2), the through-hole has been seted up to fixed support subassembly (2) lateral wall, cylindric lock (6) pass through-hole fixed screw thread round pin (7), fixed support subassembly (2) insert in the recess of base (1) to fix with fastening screw (8) side direction; the connection mode of the threaded pin (7) of the sliding support assembly (3) is the same as that of the threaded pin of the fixed support assembly (2), and the sliding support assembly (3) slides by the sliding rail assembly (4); the sliding rail assembly (4) comprises two guide blocks (10), the guide blocks (10) are fixed on the base (1) through pins and screws, the threaded blocks (5) are connected with the threaded pins (7) through threads, the lower end faces of the threaded blocks (5) are matched with the upper end faces of the outer rings of the joint bearings of the damper assembly, the design avoidance grooves avoid joint balls of the joint bearings, and the upper end faces of the fixed support assembly (2) and the sliding support assembly (3) are respectively provided with avoidance grooves, so that joint balls of the joint bearings are avoided.
Further, the sliding support assembly further comprises limiting blocks (9), and the limiting blocks (9) are arranged on two axial sides of the sliding support assembly (3).
Further, the supporting surfaces of the fixed support component (2) and the sliding support component (3) are ensured to be horizontal and have the same height.
Further, the side wall of the side, close to the tail rotor damper assembly, of the fixed support assembly (2) and the sliding support assembly (3) is provided with an avoidance area, so that collision is prevented during use.
Furthermore, the threaded pin (7) is required to be vertical, and after the tail rotor damper assembly is installed, the tail rotor damper assembly is tightly pressed by the threaded block (5), so that the rod end joint bearing is fixed and guaranteed to be parallel.
Furthermore, the base (1), the fixed support component (2) and the sliding support component (3) are all made of No. 45 steel.
Further, the clamp parts are connected through threads and pins.
Technical effects
The utility model provides a tail-rotor damper subassembly rod end joint bearing mounting fixture easy and simple to handle, through two level and high support subassemblies and screw thread piece such as, realizes the fixed of rod end joint bearing and guarantees parallelism, makes one end support follow-up along tail-rotor damper subassembly axis direction through using slide rail assembly, makes things convenient for operating personnel to install, adapts to the difference of tail-rotor damper subassembly both ends joint bearing centre-to-centre spacing, and product quality is stable, and assembly efficiency also obtains improving.
Drawings
FIG. 1 is a schematic diagram of the principle of operation;
an N-tail damper assembly; m-compressing the nut;
FIG. 2 is a schematic illustration of the structure and connection of a stationary support assembly;
p-knuckle bearing outer ring; q-joint ball;
fig. 3 is a schematic view of the structure and connection of the cradle assembly.
Detailed Description
The utility model is further described below with reference to examples. The following description is of some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The specific embodiments of the clamp are described in detail below with reference to the accompanying drawings.
Firstly, mounting inner holes of rod end joint bearings at two ends of a preassembled tail rotor damper assembly into threaded pins at two ends of a clamp, so that the lower end face of the rod end joint bearing is tightly attached to a supporting face of a support assembly; secondly, screwing the thread blocks into the thread pins to enable the thread blocks to be attached to the upper end faces of the rod end joint bearings, and then screwing the thread blocks to fix the rod end joint bearings; and thirdly, after torque is applied to compression nuts at two ends of the tail rotor damper assembly, the screw thread blocks are disassembled, and the tail rotor damper assembly is taken out, so that the tail rotor damper assembly is assembled.
The tail rotor damper assembly rod end joint bearing fixing clamp comprises a base (1), a fixed support assembly (2), a sliding support assembly (3), a sliding rail assembly (4) and a threaded block (5), wherein a threaded pin (7) of the fixed support assembly (2) is connected to the fixed support assembly (2) through threads, a through hole is formed in the side wall of the fixed support assembly (2), a cylindrical pin (6) penetrates through the through hole to fix the threaded pin (7), and the fixed support assembly (2) is inserted into a groove of the base (1) and is laterally fixed through a fastening screw (8); the connection mode of the threaded pin (7) of the sliding support assembly (3) is the same as that of the threaded pin of the fixed support assembly (2), and the sliding support assembly (3) slides by the sliding rail assembly (4); the sliding rail assembly (4) comprises two guide blocks (10), the guide blocks (10) are fixed on the base (1) through pins and screws, the threaded blocks (5) are connected with the threaded pins (7) through threads, the lower end faces of the threaded blocks (5) are matched with the upper end faces of the outer rings of the joint bearings of the damper assembly, the design avoidance grooves avoid joint balls of the joint bearings, and the upper end faces of the fixed support assembly (2) and the sliding support assembly (3) are respectively provided with avoidance grooves, so that joint balls of the joint bearings are avoided.
The sliding support assembly is characterized by further comprising limiting blocks (9), wherein the limiting blocks (9) are arranged on two axial sides of the sliding support assembly (3) and fixed on the base (1) by adopting pins and screws, so that the sliding support assembly (3) is prevented from falling off when sliding along the axial direction.
The sliding support assembly (3) is characterized by comprising a fixed support assembly (2), wherein the supporting surface of the sliding support assembly (3) is ensured to be horizontal and equal in height.
The side wall of the side wall, close to one side of the tail rotor damper assembly, of the fixed support assembly (2) and the sliding support assembly (3) is provided with an avoidance area, so that collision is prevented during use.
The screw pin (7) is vertical, after the tail rotor damper assembly is installed, the tail rotor damper assembly is tightly pressed by the screw block (5), the rod end joint bearing is fixed and guaranteed to be parallel, the difference of center distances of the joint bearings at two ends of different tail rotor damper assemblies is adapted, the tail rotor damper assembly is convenient for an operator to install, and one end support seat of the slide rail assembly can follow the axis direction of the tail rotor damper assembly.
The base (1), fixed bolster subassembly (2), sliding support subassembly (3) are made by No. 45 steel, and with low costs and mechanical properties are better, and the surface all carries out bluing and handles, prevents to take place the corruption.
The fixture parts are connected through threads and pins, so that follow-up disassembly and inspection and part replacement are facilitated.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. While the foregoing is directed to embodiments of the present utility model, other and further details of the utility model may be had by the present utility model, it should be understood that the foregoing description is merely illustrative of the present utility model and that no limitations are intended to the scope of the utility model, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the utility model.
Claims (6)
1. The utility model provides a tail rotor damper assembly rod end joint bearing mounting fixture which is characterized in that, including base (1), fixed support subassembly (2), sliding support subassembly (3), slide rail subassembly (4) and screw thread piece (5), wherein, screw thread round pin (7) of fixed support subassembly (2) are through threaded connection on fixed support subassembly (2), the through-hole has been seted up to fixed support subassembly (2) lateral wall, cylindric lock (6) pass through-hole fixed screw thread round pin (7), fixed support subassembly (2) inserts in the recess of base (1), and fix with fastening screw (8) side direction; the connection mode of the threaded pin (7) of the sliding support assembly (3) is the same as that of the threaded pin of the fixed support assembly (2), and the sliding support assembly (3) slides by the sliding rail assembly (4); the sliding rail assembly (4) comprises two guide blocks (10), the guide blocks (10) are fixed on the base (1) through pins and screws, the threaded blocks (5) are connected with the threaded pins (7) through threads, the lower end faces of the threaded blocks (5) are matched with the upper end faces of the outer rings of the joint bearings of the damper assembly, the design avoidance grooves avoid joint balls of the joint bearings, and the upper end faces of the fixed support assembly (2) and the sliding support assembly (3) are respectively provided with avoidance grooves, so that joint balls of the joint bearings are avoided.
2. The fixture for fixing the rod end joint bearing of the tail rotor damper assembly according to claim 1, further comprising limiting blocks (9), wherein the limiting blocks (9) are arranged on two axial sides of the sliding support assembly (3).
3. A tail rotor damper assembly rod end joint bearing mounting fixture according to claim 1, wherein the mounting bracket assembly (2) and the shoe assembly (3) support surfaces are level and of equal height.
4. The fixture for fixing the rod end joint bearing of the tail rotor damper assembly according to claim 1, wherein the side wall, close to one side of the tail rotor damper assembly, of the fixed support assembly (2) and the sliding support assembly (3) is provided with an avoidance area, so that collision is prevented during use.
5. A fixture for fixing a rod end joint bearing of a tail rotor damper assembly according to claim 1, wherein the threaded pin (7) is ensured to be vertical, and after the tail rotor damper assembly is installed, the tail rotor damper assembly is tightly pressed by the threaded block (5) to fix the rod end joint bearing and ensure parallelism.
6. A tail rotor damper assembly rod end joint bearing mounting fixture according to claim 1, wherein the base (1), the mounting bracket assembly (2) and the sliding bracket assembly (3) are all made of steel No. 45.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320555579.2U CN219649664U (en) | 2023-03-21 | 2023-03-21 | Tail rotor damper assembly rod end joint bearing fixing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320555579.2U CN219649664U (en) | 2023-03-21 | 2023-03-21 | Tail rotor damper assembly rod end joint bearing fixing clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219649664U true CN219649664U (en) | 2023-09-08 |
Family
ID=87877977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320555579.2U Active CN219649664U (en) | 2023-03-21 | 2023-03-21 | Tail rotor damper assembly rod end joint bearing fixing clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219649664U (en) |
-
2023
- 2023-03-21 CN CN202320555579.2U patent/CN219649664U/en active Active
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| GR01 | Patent grant | ||
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