CN211568339U - Support for measuring inclination angle of central part of propeller hub - Google Patents
Support for measuring inclination angle of central part of propeller hub Download PDFInfo
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- CN211568339U CN211568339U CN201922155559.2U CN201922155559U CN211568339U CN 211568339 U CN211568339 U CN 211568339U CN 201922155559 U CN201922155559 U CN 201922155559U CN 211568339 U CN211568339 U CN 211568339U
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Abstract
The utility model belongs to helicopter test field relates to a be used for propeller hub central part inclination measuring support. This support includes: the support comprises a support body (2) and a clamping jaw, wherein a positioning flange (4) is arranged on the upper surface of one side of the support body (2), a supporting table (5) is arranged on the lower surface of the other side of the support body (2), and the clamping jaw is fixed on a hub locking gasket through the clamping jaw. The bracket is applied based on a sensor measuring system, provides a measuring platform for measuring devices such as sensors and the like, and realizes measurement of the inclination angle of the central component.
Description
Technical Field
The utility model belongs to helicopter test field relates to a be used for propeller hub central part inclination measuring support.
Background
After a helicopter flight control system installs or replaces components (such as a main hub, a booster, a steering engine and the like) on a helicopter, the blade installation angle needs to be checked to confirm whether the position of a specific control device (a steering column, a total pitch rod and a pedal) of the helicopter corresponds to the specific blade installation angle, and the measurement accuracy of the system is directly related to the flight performance and the flight quality of the helicopter.
Blade setting angle measurements are typically converted to the setting angle of the hub arms by a fixed blade twist angle to facilitate process measurements. The traditional measurement of the installation angle of the hub support arm is to directly place an aligner on a splint plane of the hub support arm to measure the included angle between the plane and the horizontal plane, and a main rotor shaft of a helicopter is generally designed to be inclined forwards, so that the main rotor shaft of the helicopter is always required to be vertically arranged before measurement, namely the main rotor shaft is enabled to be in a vertical state by adjusting the posture of the helicopter, and the measurement work has the disadvantages of more guarantee conditions, low efficiency and poor safety.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the bracket for measuring the inclination angle of the hub center part can provide a measuring platform for a sensor measuring device, and the measurement of the inclination angle of the center part is realized.
The technical scheme of the utility model:
in a first aspect, there is provided a mount for hub centerpiece pitch measurement comprising: the support comprises a support body 2 and a clamping jaw, wherein a positioning flange 4 is arranged on the upper surface of one side of the support body 2, a supporting table 5 is arranged on the lower surface of the other side of the support body 2, and the clamping jaw is fixed on a hub locking gasket through the clamping jaw.
Optionally, the jaw comprises: a first bracket jaw 31 and a second bracket jaw 32.
Optionally, the hub locking device further comprises a positioning pin 1, and positioning holes are formed in the first support jaw 31 and the second support jaw 32, and the positioning pin is matched with the positioning holes to fix the support to the hub locking gasket.
Optionally, the positioning hole on the second bracket jaw 32 is a kidney-shaped through hole.
Alternatively, the positioning holes on the first holder jaw 31 are circular through holes.
Optionally, the hub locking device further comprises a positioning bolt, positioning screw holes are formed in the first support clamping jaw 31 and the second support clamping jaw 32, and the positioning bolt is matched with the positioning screw holes to fix the support to the hub locking gasket.
Alternatively, the first and second holder jaws 31 and 32 are the first and second holder jaws 31 and 32 of a magnetic material.
Optionally, gasket mounting holes are further provided at four corners of the upper surface of the bracket body 2.
The utility model has the advantages that: the utility model discloses utilize central authorities and main rotor shaft vertically characteristic, based on sensor measurement system uses, provide a simple structure's measurement support, for measuring device such as sensor provides measuring platform, realize measuring the central authorities inclination to avoided the alignment to rise the machine "beat the vertically strict measuring prerequisite, improved guarantee efficiency, reduced the guarantee condition, improved maintainer's security.
Drawings
Figure 1 is a schematic view of a mount for hub centerpiece inclination measurement according to an embodiment of the present invention.
Wherein, locating pin 1, support body 2, first support jack catch 31, second support jack catch 32, location flange 4, brace table 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses utilize central authorities and main rotor shaft vertically characteristic, based on sensor measurement system uses, provide a simple structure's measurement support, for measuring device such as sensor provides measuring platform, realize measuring the central authorities inclination to avoided the alignment to rise the machine "beat the vertically strict measuring prerequisite, improved guarantee efficiency, reduced the guarantee condition, improved maintainer's security.
The utility model discloses a support for propeller hub central part inclination is measured, include: the support comprises a support body 2 and a clamping jaw, wherein a positioning flange 4 is arranged on the upper surface of one side of the support body 2, a supporting table 5 is arranged on the lower surface of the other side of the support body 2, and the clamping jaw is fixed on a hub locking gasket through the clamping jaw.
Optionally, the jaw comprises: a first bracket jaw 31 and a second bracket jaw 32.
Optionally, the hub locking device further comprises a positioning pin 1, and positioning holes are formed in the first support jaw 31 and the second support jaw 32, and the positioning pin is matched with the positioning holes to fix the support to the hub locking gasket.
Optionally, the positioning hole on the second bracket jaw 32 is a kidney-shaped through hole.
Alternatively, the positioning holes on the first holder jaw 31 are circular through holes.
Optionally, the hub locking device further comprises a positioning bolt, positioning screw holes are formed in the first support clamping jaw 31 and the second support clamping jaw 32, and the positioning bolt is matched with the positioning screw holes to fix the support to the hub locking gasket.
Alternatively, the first and second holder jaws 31 and 32 are the first and second holder jaws 31 and 32 of a magnetic material.
Optionally, gasket mounting holes are further provided at four corners of the upper surface of the bracket body 2.
Example (b):
a bracket for center piece tilt measurement. The method is characterized in that: the bracket comprises a positioning pin 1 and a bracket body 2. The first support jaw 31 and the second support jaw 32 keep small clearance fit with a structural part on a machine due to the dimensional tolerance, positioning pin mounting holes are formed in the first support jaw 31 and the second support jaw 32, one positioning hole is a circular positioning through hole, the other positioning hole is a waist-shaped adjusting through hole, and the support is fixedly connected with the machine through the positioning pin 1 after the support is positioned. A positioning flange 4 is designed on the mounting surface of the support measuring device and used for ensuring that the axis of the measuring device is parallel to the variable pitch axis of the blade. And the mounting indication is carried out on the support machine. During measurement, a measuring device is installed on a support body 2 on the ground, then the support body 2 is installed on a helicopter hub locking gasket through a positioning pin 1, and when a flight control system is checked, the angle measured by the measuring device is the space angle of a central part.
The above description is only for the specific embodiments of the present invention, and the present invention is described in detail, and the detailed description is not the conventional technology. However, the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A mount for hub centerpiece pitch measurement, comprising: the support comprises a support body (2) and a clamping jaw, wherein a positioning flange (4) is arranged on the upper surface of one side of the support body (2), a supporting table (5) is arranged on the lower surface of the other side of the support body (2), and the clamping jaw is fixed on a hub locking gasket through the clamping jaw.
2. The bracket of claim 1, wherein the pawl comprises: a first bracket jaw (31) and a second bracket jaw (32).
3. The bracket according to claim 2, further comprising positioning pins (1), wherein the first bracket jaw (31) and the second bracket jaw (32) are provided with positioning holes, and the positioning pins are matched with the positioning holes to fix the bracket on the hub lock washer.
4. A bracket according to claim 3, characterized in that the positioning holes in the second bracket jaw (32) are kidney-shaped through holes.
5. A support according to claim 2, characterized in that the positioning holes in the first support jaw (31) are circular through holes.
6. The bracket of claim 2, further comprising a positioning bolt, wherein the first bracket jaw (31) and the second bracket jaw (32) are provided with a positioning screw hole, and the positioning bolt is matched with the positioning screw hole to fix the bracket to the hub lock gasket.
7. A bracket according to claim 2, characterized in that the first bracket jaw (31) and the second bracket jaw (32) are a first bracket jaw (31) and a second bracket jaw (32) of magnetic material.
8. The bracket according to claim 1, characterized in that four corners of the upper surface of the bracket body (2) are further provided with gasket mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922155559.2U CN211568339U (en) | 2019-12-04 | 2019-12-04 | Support for measuring inclination angle of central part of propeller hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922155559.2U CN211568339U (en) | 2019-12-04 | 2019-12-04 | Support for measuring inclination angle of central part of propeller hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211568339U true CN211568339U (en) | 2020-09-25 |
Family
ID=72534263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922155559.2U Active CN211568339U (en) | 2019-12-04 | 2019-12-04 | Support for measuring inclination angle of central part of propeller hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211568339U (en) |
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2019
- 2019-12-04 CN CN201922155559.2U patent/CN211568339U/en active Active
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