CN211442818U - Propeller test bench - Google Patents
Propeller test bench Download PDFInfo
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- CN211442818U CN211442818U CN201922462388.8U CN201922462388U CN211442818U CN 211442818 U CN211442818 U CN 211442818U CN 201922462388 U CN201922462388 U CN 201922462388U CN 211442818 U CN211442818 U CN 211442818U
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- main shaft
- pull force
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Abstract
The utility model discloses a screw test rack, including the support, its characterized in that: the detection device comprises a support, a sliding rail, a detection platform, a main shaft, a push-pull force support, a push-pull force sensor, a torsion support, a torque sensor and a flexible coupler, wherein the top surface of the support is a mounting plane, the mounting plane is provided with the sliding rail, the sliding rail is provided with the detection platform, the detection platform is provided with at least two bearing seats, the bearing seats are internally provided with the main shaft, the mounting plane is provided with the push-pull force support, the push-pull force sensor is connected between the push-pull force support and the detection platform, the detection platform is provided with the torsion. The utility model discloses a test bench has improved the measuring accuracy of screw.
Description
Technical Field
The utility model relates to an aircraft driving system test equipment technical field especially relates to a screw test rack.
Background
The propellers on the aircraft are used for converting the rotating power of the engine into the propelling force, and after the engine is hung on the propellers, the propelling force and the torsion force generated by different rotating speeds and blade angles are different. Under the different states, real thrust and torque data need to be obtained, and the engine power is calculated through the extracted data such as the engine speed, the atmospheric pressure and the like.
Chinese patent CN206725141U discloses a propeller power test bench, and specifically discloses: including test screw, rack, integrated display panel and speed sensor, the test screw includes test motor, first mounting panel, pillar, second mounting panel and screw body, the screw body is installed at test motor's output, and screw body and test motor install the left surface at first mounting panel, first mounting panel passes through the right flank fixed connection of pillar and second mounting panel, the rack includes torsion axle, first support, second support, torsion connector, torsion sensor signal line and third support, second mounting panel fixed connection is in the one end of torsion axle, first support and second support have been cup jointed from left to right in proper order to the surface of torsion axle, the right-hand member of torsion axle has torsion sensor through torsion connector swing joint, torsion sensor installs the left surface at the third support, and the torsion sensor is electrically connected with the integrated display panel through a torsion sensor signal wire, the integrated display panel comprises a sliding flat plate, a sliding rail support, a fourth support, a connecting sheet, a tension joint, a tension sensor, a tension signal wire, a fifth support and a display screen, the sliding flat plate is slidably connected with the sliding rail through the sliding rail support, the sliding rail is arranged on the upper surface of the rack through the fourth support, the connecting sheet is arranged on the right side surface of the sliding flat plate, the top end of the connecting sheet is clamped with the lower surface of the tension joint, the tension sensor is arranged at the right end of the tension joint, the right side surface of the tension sensor is fixedly connected with the upper surface of the rack through the fifth support, the tension sensor is electrically connected with the display screen through the tension signal wire, a speed measuring device is arranged on the upper surface of the, Clamp, support and connecting plate, speed sensor passes through clamp fixedly connected with support, speed sensor's one end is kept away from to the support passes through connecting plate fixed connection in the left side of slip dull and stereotyped upper surface, and speed sensor is located the right side of screw body.
Although the screw power test board disclosed in the patent can detect the torque force of the screw, the torque force sensor can be influenced by the vibration caused by the push-pull force, so that the detection precision is influenced, and in the detection process, particularly the two-stroke engine screw does not rotate stably, so that the support is difficult to support the main shaft, and the main shaft is arranged in the support to be moved, so that the detection precision is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a detect screw test rack that the precision is high and long service life.
In order to achieve the above object, the present invention is realized as follows: the utility model provides a screw test bench, includes the support, its characterized in that: the detection device comprises a support, a sliding rail, a detection platform, a main shaft, a push-pull force support, a push-pull force sensor, a torsion support, a torque sensor and a flexible coupler, wherein the top surface of the support is a mounting plane, the mounting plane is provided with the sliding rail, the sliding rail is provided with the detection platform, the detection platform is provided with at least two bearing seats, the bearing seats are internally provided with the main shaft, the mounting plane is provided with the push-pull force support, the push-pull force sensor is connected between the push-pull force support and the detection platform, the detection platform is provided with the torsion. The screw test bench that adopts above-mentioned patent to set up offsets the shake of main shaft in screw detection process through adopting flexible coupling. And the torsion sensor does not bear push-pull force in the tool state, so that the torsion detection precision is high, and the service life of the torsion sensor is long.
In order to further improve the detection precision, the front end of the main shaft is connected with the flange plate through the expansion sleeve. Through the arrangement, the main shaft can be prevented from scraping.
In order to further improve the detection precision, the tail end of the main shaft is connected with a mounting flange plate through an expansion sleeve, the mounting flange plate is connected with a flexible coupling, and the flexible coupling is connected with a flange plate of a torque flange sensor. Through the arrangement, the main shaft can be prevented from scraping.
In order to further improve the safety performance, the outer diameter of the mounting flange is smaller than that of the flexible coupling, a cushion block is arranged on the detection platform and is positioned below the mounting flange and opposite to the end face of the flexible coupling.
Has the advantages that:
the utility model discloses a screw test rack for torque flange sensor does not bear the push-and-pull power under operating condition, has improved screw torsion and has detected the precision, and has improved torque flange sensor's life.
And through the tight holding of the cover to the main shaft that expands then be connected with the ring flange, can further avoid the group of main shaft to move, especially when detecting two-stroke engine screw, can guarantee the installation reliability of bearing frame to the main shaft, further improve and detect the precision.
Additionally, the utility model discloses in the cushion that sets up, after the main shaft is connected the article pine and is taken off, can prevent to take place the upset, improved the security performance of test rack.
Drawings
FIG. 1 is a front view of an embodiment of a propeller test rig;
FIG. 2 is a top view of an embodiment of a propeller test rig;
fig. 3 is a cross-sectional view of fig. 2.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, but the present invention is not limited to these embodiments, and any modifications or replacements within the basic spirit of the embodiments still fall within the scope of the present invention claimed in the claims.
Example (b): as shown in fig. 1-3, the present embodiment provides a test rig for testing thrust and pull-push forces and torsion forces of a propeller of an aircraft.
The utility model provides a screw test bench, includes support 1, the support top surface is mounting surface 2 baffle 3 around being provided with on the mounting surface, be provided with slide rail 4 between the baffle around, slide to establish on the slide rail and be provided with slider 5, the fixed testing platform 10 that is provided with on the slider, the last fixed bearing frame 6 that is provided with of testing platform, the bearing frame is two and the bearing frame is coaxial to be arranged at least.
A main shaft 7 is installed in a bearing of the bearing seat, and a radial screw is further installed on an inner ring of the bearing and fixedly connected with the main shaft. To ensure that the spindle is able to rotate but not axially slide within the bearing housing. The front end of the main shaft is connected with a propeller mounting flange 9 through an expansion sleeve 8. The expansion sleeve embraces the front end of the main shaft and is connected with the end surface of the propeller flange plate 9 through an axial screw.
In addition, a push-pull force support 11 is arranged on the mounting plane and is positioned at the rear end of the detection platform, a push-pull force sensor 12 is connected between the push-pull force support and the detection platform, and the push-pull force sensor is used for detecting the pushing force and the pulling force of the propeller during working.
And a torsion bracket 13 is arranged on the detection platform and is positioned at the rear end of the main shaft. The tail end of the main shaft is connected with a mounting flange plate 14 through an expansion sleeve 8, the mounting flange plate 14 is connected with a flexible coupling 15, the flexible coupling is connected with a flange plate of a torque flange sensor 16, and the torque flange sensor is mounted on the torque support.
Wherein, the tail end of main shaft is embraced to the cover 8 that expands, and with the terminal surface of mounting flange dish passes through axial screw fixed connection, mounting flange dish the terminal surface with flexible coupling's axial connecting hole passes through axial screw and connects, and be provided with a adapter sleeve 17 in flexible coupling's the hole, the radial connecting hole of shaft coupling passes through radial screw and is connected with the adapter sleeve, the adapter sleeve terminal surface with torque flange sensor passes through axial screw and connects.
As another implementation manner in this embodiment, the outer diameter of the mounting flange is smaller than the outer diameter of the flexible coupling, and a spacer 18 is fixedly disposed on the detection platform, and is located below the mounting flange and opposite to the end face of the flexible coupling.
When the propeller testing bench of the embodiment is used for detecting the propeller of the aircraft, the torque flange sensor does not bear push-pull force in a working state, so that the propeller torque force detection precision is improved, and the service life of the torque flange sensor is prolonged. And through the tight holding of the cover to the main shaft that expands then be connected with the ring flange, can further avoid the group of main shaft to move, especially when detecting two-stroke engine screw, can guarantee the installation reliability of bearing frame to the main shaft, further improve and detect the precision. In addition, the cushion block arranged in the embodiment can prevent the main shaft from overturning after the main shaft is connected with the object and loosened, and the safety performance of the test bench is improved.
Claims (6)
1. The utility model provides a screw test bench, includes the support, its characterized in that: the detection device comprises a support, a sliding rail, a detection platform, a main shaft, a push-pull force support, a push-pull force sensor, a torsion support, a torque sensor and a flexible coupler, wherein the top surface of the support is a mounting plane, the mounting plane is provided with the sliding rail, the sliding rail is provided with the detection platform, the detection platform is provided with at least two bearing seats, the bearing seats are internally provided with the main shaft, the mounting plane is provided with the push-pull force support, the push-pull force sensor is connected between the push-pull force support and the detection platform, the detection platform is provided with the torsion.
2. The propeller test rig of claim 1, wherein: the front end of the main shaft is connected with the flange plate through the expansion sleeve.
3. The propeller test rig of claim 1, wherein: the tail end of the main shaft is connected with a mounting flange plate through an expansion sleeve, the mounting flange plate is connected with a flexible coupling, and the flexible coupling is connected with a flange plate of a torque flange sensor.
4. A propeller test rig according to claim 3, wherein: the outer diameter of the mounting flange is smaller than that of the flexible coupler, a cushion block is arranged on the detection platform and is located below the mounting flange and opposite to the end face of the flexible coupler.
5. The propeller test rig of claim 2, wherein: the tail end of the main shaft is connected with a mounting flange plate through an expansion sleeve, the mounting flange plate is connected with a flexible coupling, and the flexible coupling is connected with a flange plate of a torque flange sensor.
6. The propeller test rig of claim 5, wherein: the outer diameter of the mounting flange is smaller than that of the flexible coupler, a cushion block is arranged on the detection platform and is located below the mounting flange and opposite to the end face of the flexible coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922462388.8U CN211442818U (en) | 2019-12-31 | 2019-12-31 | Propeller test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922462388.8U CN211442818U (en) | 2019-12-31 | 2019-12-31 | Propeller test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211442818U true CN211442818U (en) | 2020-09-08 |
Family
ID=72314846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922462388.8U Active CN211442818U (en) | 2019-12-31 | 2019-12-31 | Propeller test bench |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211442818U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115901046A (en) * | 2023-02-15 | 2023-04-04 | 灵翼飞航（天津）科技有限公司 | Multi-load unmanned aerial vehicle engine dynamometer |
| WO2024061146A1 (en) * | 2022-09-19 | 2024-03-28 | 峰飞航空科技(昆山)有限公司 | Measuring device |
-
2019
- 2019-12-31 CN CN201922462388.8U patent/CN211442818U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024061146A1 (en) * | 2022-09-19 | 2024-03-28 | 峰飞航空科技(昆山)有限公司 | Measuring device |
| CN115901046A (en) * | 2023-02-15 | 2023-04-04 | 灵翼飞航（天津）科技有限公司 | Multi-load unmanned aerial vehicle engine dynamometer |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Building 14, No. 126, Yunan Avenue, Banan District, Chongqing Patentee after: Chongqing Zongshen Aviation Engine Manufacturing Co.,Ltd. Address before: Building 14, No. 126, Yunan Avenue, Banan District, Chongqing Patentee before: CHONGQING ZONGSHEN AIRCRAFT ENGINE MANUFACTURING CO.,LTD. |