CN220349949U - Full-hinged motion and measuring device for helicopter rotor test stand - Google Patents
Full-hinged motion and measuring device for helicopter rotor test stand Download PDFInfo
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- CN220349949U CN220349949U CN202322348315.2U CN202322348315U CN220349949U CN 220349949 U CN220349949 U CN 220349949U CN 202322348315 U CN202322348315 U CN 202322348315U CN 220349949 U CN220349949 U CN 220349949U
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- 238000012360 testing method Methods 0.000 title claims abstract description 18
- 238000005259 measurement Methods 0.000 claims abstract description 11
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- 238000012986 modification Methods 0.000 description 4
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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
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Abstract
The utility model relates to the technical field of aero-mechanical tests, in particular to a full-hinge motion and measurement device for a helicopter rotor test bed, which is used for simulating the motion of a rotor on a helicopter when the rotor is tested on the test bed, and has more motion degrees of freedom for the rotor and is difficult to independently measure the motion data of the rotor root for the traditional full-hinge rotor hub. The shimmy measuring component, the waving measuring component and the pitch-changing measuring component not only realize shimmy, waving and pitch-changing movements of the rotor when transferring rotor load, but also can measure rotor movements in a simple mode, and when the rotor moves, independent data of shimmy, waving and pitch-changing movements can be collected through the sensor, and the movement data of the blade root can be conveniently obtained in real time when measuring the movement data of the blade tip.
Description
Technical Field
The utility model relates to the technical field of aero-mechanical tests, in particular to a full-hinged motion and measurement device for a helicopter rotor wing test stand.
Background
In recent years, a large number of tests are required to be carried out in the development process of the helicopter, and as a source of lift force of the helicopter, a helicopter rotor wing can be said to be one of core structures of the helicopter, so that each rotor wing needs to be tested for performance through a series of tests before being used, and the helicopter is guaranteed to have good flight quality;
the utility model provides a full-hinged movement and measuring device for a helicopter rotor test bed, which can collect independent data of shimmy, flapping and pitch-changing movement while the rotor moves so as to perform manipulation adjustment.
Disclosure of Invention
Therefore, the utility model provides a full hinge motion and measurement device for a helicopter rotor test stand, which is used for overcoming the defects in the prior art.
The utility model provides a full hinge motion and measurement device for a helicopter rotor test stand, comprising: the device comprises a shimmy measuring member, a waving measuring member and a variable-pitch measuring member, wherein one end of the waving measuring member is fixedly connected with the shimmy measuring member, and the other end of the waving measuring member is fixedly connected with the variable-pitch measuring member; the shimmy measuring component comprises a shimmy measuring module, a propeller hub shaft sleeve seat, a shimmy hinge and a shimmy bearing, wherein the shimmy measuring module comprises a first sensor, the shimmy measuring module is arranged on the propeller hub shaft sleeve seat, the propeller hub shaft sleeve seat is provided with a first mounting hole, one end of the shimmy bearing is connected with the first mounting hole, and the other end of the shimmy bearing is connected with the shimmy hinge; the waving measuring component comprises a waving measuring module, a horizontal hinge assembly, a waving bearing and a waving hinge, wherein the waving measuring module comprises a second sensor, the waving measuring module is connected with the variable-pitch measuring component, the horizontal hinge assembly is of a cube cavity structure and is provided with a second mounting hole, one end of the waving bearing is connected with the second mounting hole, and the other end of the waving bearing is connected with the waving hinge; the variable-pitch measuring component comprises a variable-pitch measuring module and a variable-pitch shaft, the variable-pitch measuring module comprises a third sensor, the variable-pitch measuring module is arranged on the variable-pitch shaft, a compression nut, a first cylindrical roller bearing, a variable-pitch shell, a variable-pitch shaft bushing, a second cylindrical roller bearing and a fixed nut are sleeved on the variable-pitch shaft, one end of the first cylindrical roller bearing is connected with the compression nut, and the other end of the first cylindrical roller bearing is connected with the variable-pitch shell; the distance-changing shaft bushing is arranged in the distance-changing shell, and a thrust roller bearing is sleeved on the distance-changing shaft bushing; one end of the second cylindrical roller bearing is connected with the distance-changing shaft bushing, and the other end of the second cylindrical roller bearing is connected with the fixing nut; the variable-pitch shaft is provided with a third mounting hole.
Further, a concave table is arranged at one end of the variable-pitch shell, and the thrust roller bearing can be arranged in the concave table.
Compared with the prior art, the full-hinged motion and measurement device for the helicopter rotor test stand not only can realize the shimmy, flapping and displacement motion of the rotor while transmitting the rotor load, but also can measure the rotor motion in a simple mode, can collect independent data of shimmy, flapping and displacement motion through a sensor during the rotor motion, and can acquire the motion data of the blade root conveniently in real time while measuring the blade tip motion data.
Drawings
FIG. 1 is a schematic view of the overall structure of a full hinge motion and measurement device for a helicopter rotor test stand according to the present utility model;
fig. 2 is a schematic illustration of the illustrated parts of a full hinge motion and measurement apparatus for a helicopter rotor test stand of the present utility model.
A1 is a shimmy measuring component, B1 is a waving measuring component, C1 is a distance-changing measuring component, 1 is a shimmy measuring module, D1 is a first sensor, 2 is a waving measuring module, E1 is a second sensor, 3 is a distance-changing measuring module, F1 is a third sensor, D2 is a first mounting hole, 4 is a hub shaft sleeve seat, 5 is a shimmy hinge, 6 is a shimmy bearing, 7 is a horizontal hinge component, E2 is a second mounting hole, 8 is a waving bearing, 9 is a waving hinge, 10 is a distance-changing shaft, F2 is a third mounting hole, 11 is a compression nut, 12 is a first cylindrical roller bearing, 13 is a distance-changing shell, G1 is a concave table, 14 is a distance-changing shaft sleeve, 15 is a thrust roller bearing, 16 is a second cylindrical roller bearing, and 17 is a fixed nut.
Detailed Description
In order that the objects and advantages of the utility model will become more apparent, the utility model will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.
It should be noted that, in the description of the present utility model, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, it should be noted that, in the description of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.
The utility model is described in further detail below with reference to the accompanying drawings:
the utility model provides a full hinge motion and measurement device for a helicopter rotor test stand, comprising: the device comprises a shimmy measuring component A1, a waving measuring component B1 and a variable-pitch measuring component C1, wherein one end of the waving measuring component B1 is fixedly connected with the shimmy measuring component A1, and the other end is fixedly connected with the variable-pitch measuring component C1; the shimmy measuring component A1 comprises a shimmy measuring module 1, a rotor hub shaft sleeve seat 4, a shimmy hinge 5 and a shimmy bearing 6, wherein the shimmy measuring module 1 comprises a first sensor D1, the shimmy measuring module 1 is arranged on the rotor hub shaft sleeve seat 4, the rotor hub shaft sleeve seat 4 is provided with a first mounting hole D2, one end of the shimmy bearing 6 is connected with the first mounting hole D2, and the other end is connected with the shimmy hinge 5; the waving measuring component B1 comprises a waving measuring module 2, a horizontal hinge component 7, a waving bearing 8 and a waving hinge 9, wherein the waving measuring module 2 comprises a second sensor E1, the waving measuring module 2 is connected with the variable-pitch measuring component C1, the horizontal hinge component 7 is of a cube cavity structure and is provided with a second mounting hole E2, one end of the waving bearing 8 is connected with the second mounting hole E2, and the other end of the waving bearing 8 is connected with the waving hinge 9; the variable-pitch measuring component C1 comprises a variable-pitch measuring module 3 and a variable-pitch shaft 10, the variable-pitch measuring module 3 comprises a third sensor F1, the variable-pitch measuring module 3 is arranged on the variable-pitch shaft 10, a compression nut 11, a first cylindrical roller bearing 12, a variable-pitch shell 13, a variable-pitch shaft bushing 14, a second cylindrical roller bearing 16 and a fixed nut 17 are sleeved on the variable-pitch shaft 10, one end of the first cylindrical roller bearing 12 is connected with the compression nut 11, and the other end is connected with the variable-pitch shell 13; the distance-changing shaft bushing 14 is arranged in the distance-changing shell 13, and a thrust roller bearing 15 is sleeved on the distance-changing shaft bushing 14; one end of the second cylindrical roller bearing 16 is connected with the distance-changing shaft bushing 14, and the other end is connected with the fixed nut 17; the variable-pitch shaft 10 is provided with a third mounting hole F2; one end of the pitch-changing housing 13 is provided with a concave table G1, and the thrust roller bearing 15 may be disposed in the concave table G1.
Specifically:
the reference large gear is used for checking the accuracy of key dimensions such as tooth pitch, tooth profile, modulus, indexing ring and the like of other gears in the gear manufacturing and gear measuring processes, the hub shaft sleeve seat 4 is connected to the rotating shaft through a shaft hole and a spline, the outer side of the hub shaft sleeve seat 4 is provided with a vertical mounting hole, the first mounting hole D2 is internally provided with a shimmy bearing 6 and a shimmy hinge 5 for connecting with the horizontal hinge assembly 7, shimmy movement of a rotor wing can be realized through the bearing, and two ends of the horizontal hinge assembly 7 are provided with horizontal second mounting holes E2; the third mounting hole F2 of the pitch-variable shaft 10 is connected with the flapping hinge 9 through the flapping bearing 8, and the flapping motion of the rotor wing can be realized through the bearing; the pitch-variable shaft 10 is connected with the pitch-variable housing 13 through a first cylindrical roller bearing 12 and a compression nut 11, and the pitch-variable shaft 10 and the pitch-variable housing 13 relatively rotate through bearings to realize the pitch-variable motion of the rotor; the first reference big gear is matched with the first measuring gear, the second reference big gear is matched with the second measuring gear, the third reference big gear is matched with the third measuring gear, for the shimmy movement of the rotor, when the rotor performs shimmy movement, the horizontal hinge assembly 7 generates rotation relative to the hub shaft sleeve seat 4, the first measuring gear and the first reference big gear on the hub shaft sleeve seat 4 generate relative rotation, and the rotation is transmitted to the first sensor D1 through the first measuring gear, so that the shimmy angle can be measured; for the flapping motion of the rotor wing, when the rotor wing performs the flapping motion, the pitch-changing shaft 10 rotates relative to the horizontal hinge assembly 7, the second measuring gear and the second reference gear on the horizontal hinge assembly 7 rotate relatively, and the rotation is transmitted to the second sensor E1 through the second measuring gear, so that the measurement of the flapping angle can be realized; similarly, the rotor pitch-changing movement is measured by the relative rotation generated by the third measuring gear and the third reference gear wheel on the pitch-changing shell 13 when the rotor pitch is changed, so that the rotor pitch-changing angle can be measured conveniently in real time.
The outer side of the hub shaft sleeve seat 4 is uniformly provided with three mounting holes in the vertical direction, the upper part and the lower part of each mounting hole are respectively provided with a shimmy bearing 6, and the shimmy hinge 5 passes through the horizontal hinge assembly 7 and is connected with the shimmy bearing 6 on the first mounting hole D2 on the outer side of the hub shaft sleeve seat 4; the two horizontal sides of the horizontal hinge assembly 7 are provided with second mounting holes E2 for connecting one end of the swing hinge 9, the other end of the swing hinge 9 is connected to the swing bearing 8, and the swing bearing 8 is fixed in a bearing hole at one end of the variable-pitch shaft 10; the compression nut 11 is connected with the variable-pitch shell 13 through threads to prevent the first cylindrical roller bearing 12 from shifting, and a boss G1 is arranged in a shaft hole of the variable-pitch shell 13 and is connected with the thrust roller bearing 15 to transmit axial load; the outer end surface of the pitch-changing shaft bushing 14 is provided with an inner ring of a second cylindrical roller bearing 16, and is connected with a fixed nut 17 arranged on the pitch-changing shaft 10; the axial load generated by the rotor is transmitted to the pitch-varying shaft 10 through the pitch-varying housing 13, the thrust roller bearing 15, the inner ring of the pitch-varying housing 13, the second cylindrical roller bearing 16, and the fixing nut 17, while the bending moment is balanced by the first cylindrical roller bearing 12 and the second cylindrical roller bearing 16.
Thus far, the technical solution of the present utility model has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present utility model is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present utility model, and such modifications and substitutions will be within the scope of the present utility model.
The foregoing description is only of the preferred embodiments of the utility model and is not intended to limit the utility model; various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (2)
1. A full hinge motion and measurement device for a helicopter rotor test stand comprising: the device comprises a shimmy measuring component (A1), a waving measuring component (B1) and a variable-pitch measuring component (C1), wherein one end of the waving measuring component (B1) is fixedly connected with the shimmy measuring component (A1), and the other end of the waving measuring component (B1) is fixedly connected with the variable-pitch measuring component (C1); the shimmy measuring component (A1) comprises a shimmy measuring module (1), a rotor hub shaft sleeve seat (4), a shimmy hinge (5) and a shimmy bearing (6), wherein the shimmy measuring module (1) comprises a first sensor (D1), the shimmy measuring module (1) is arranged on the rotor hub shaft sleeve seat (4), the rotor hub shaft sleeve seat (4) is provided with a first mounting hole (D2), one end of the shimmy bearing (6) is connected with the first mounting hole (D2), and the other end of the shimmy bearing is connected with the shimmy hinge (5); the swing measuring component (B1) comprises a swing measuring module (2), a horizontal hinge assembly (7), a swing bearing (8) and a swing hinge (9), the swing measuring module (2) comprises a second sensor (E1), the swing measuring module (2) is connected with the variable-pitch measuring component (C1), the horizontal hinge assembly (7) is of a cube cavity structure and is provided with a second mounting hole (E2), one end of the swing bearing (8) is connected with the second mounting hole (E2), and the other end of the swing bearing is connected with the swing hinge (9); the variable-pitch measuring component (C1) comprises a variable-pitch measuring module (3) and a variable-pitch shaft (10), the variable-pitch measuring module (3) comprises a third sensor (F1), the variable-pitch measuring module (3) is arranged on the variable-pitch shaft (10), a compression nut (11), a first cylindrical roller bearing (12), a variable-pitch shell (13), a variable-pitch shaft bushing (14), a second cylindrical roller bearing (16) and a fixed nut (17) are sleeved on the variable-pitch shaft (10), one end of the first cylindrical roller bearing (12) is connected with the compression nut (11), and the other end of the first cylindrical roller bearing is connected with the variable-pitch shell (13); the distance-changing shaft bushing (14) is arranged in the distance-changing shell (13), and a thrust roller bearing (15) is sleeved on the distance-changing shaft bushing (14); one end of the second cylindrical roller bearing (16) is connected with the distance-changing shaft bushing (14), and the other end of the second cylindrical roller bearing is connected with the fixed nut (17); the variable-pitch shaft (10) is provided with a third mounting hole (F2).
2. A full hinge movement and measurement device for helicopter rotor test stand according to claim 1 characterized in that one end of said pitch-changing housing (13) is provided with a recess (G1) in which said thrust roller bearing (15) is positionable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322348315.2U CN220349949U (en) | 2023-08-30 | 2023-08-30 | Full-hinged motion and measuring device for helicopter rotor test stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322348315.2U CN220349949U (en) | 2023-08-30 | 2023-08-30 | Full-hinged motion and measuring device for helicopter rotor test stand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220349949U true CN220349949U (en) | 2024-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322348315.2U Active CN220349949U (en) | 2023-08-30 | 2023-08-30 | Full-hinged motion and measuring device for helicopter rotor test stand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220349949U (en) |
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2023
- 2023-08-30 CN CN202322348315.2U patent/CN220349949U/en active Active
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