Power system test board

Abstract

The utility model discloses a power system test board which mainly comprises a base assembly, a tension measuring assembly and a photoelectric sensor assembly, and the base assembly is a triangular support formed by a plurality of section bars and square tubes; a fixing seat in the tension measuring assembly and a fixing piece in the photoelectric sensor assembly are installed on the triangular support, a flange linear bearing is installed on the fixing seat, a flange shaft is installed in the flange linear bearing, and a limiting flange is arranged on the flange linear bearing. A motor and a tension sensor are respectively mounted at two ends of the flange shaft, a paddle is mounted on the motor, the tension sensor is fixed with a vertical plate in the fixed seat through a bolt, a fixed part is fixed with the square tube through a bolt, and a photoelectric sensor is mounted on the fixed part; the photoelectric sensor can measure the rotating speed of the paddle, and the test bench is simple in structure and high in precision. In addition, the device is low in production and maintenance cost, high in adaptability and high in cost performance.

Description

Technical Field

[0001] This utility model belongs to the field of aircraft testing tooling technology, and in particular relates to an aircraft power system test bench. Background Technology

[0002] In the research and development and testing of electric motor power systems, accurately measuring motor speed and tension is a key indicator for evaluating the performance of the electric motor power system. Currently, commonly available testing equipment suffers from the following technical problems:

[0003] Structural limitations: Traditional test benches mostly adopt a fixed structure, which cannot flexibly adapt to the testing needs of motors of different specifications, resulting in low testing efficiency; most test benches can only measure a single parameter (such as tension or speed), making it difficult to achieve simultaneous and accurate measurement of multiple parameters.

[0004] Inconvenient adjustment: Existing equipment is difficult to adjust quickly to accommodate motors and sensors of different sizes; tensile force measurement systems mostly use slide rail devices, which are complicated to install and increase test preparation time.

[0005] High manufacturing costs: Traditional test benches have complex structural designs, and their shells, supports, and most parts are CNC machined, which increases manufacturing costs. Utility Model Content

[0006] To overcome the limitations of existing test benches, such as structural constraints, inconvenient adjustment, and high manufacturing costs due to complex structural design and processing, the present invention aims to provide a power system test bench. This test bench adopts a modular assembly structure, including a base composed of profiles and square tubes, a fixing component and photoelectric sensor mounted on the square tube, a fixing seat with an internal flange linear bearing above the base, a flange shaft passing through the flange linear bearing and having a tension sensor mounted at the end of the shaft, which is fastened to the vertical plate of the fixing seat with a nut, and a motor installed in the flange disc of the flange shaft. The flange shaft and the flange linear bearing exhibit rolling friction. The flange shaft can be replaced according to the model and size of the test motor, and the tension sensor is easily disassembled, replaced, and installed with the flange shaft and fixing seat, thus solving the problems of the existing technology.

[0007] The solution adopted by this utility model to solve its technical problem is as follows: A power system test bench includes a base assembly, a tensile measurement assembly, and a photoelectric sensor assembly. The specific structure is as follows: The base assembly is a triangular support assembled from multiple profiles and square tubes, providing stable support. A square tube is installed on the third profile of the triangular support. A fixed seat is provided above the square tube. The fixed seat includes a horizontal plate with a square through hole. A first vertical plate, a second vertical plate, and a third vertical plate perpendicular to the horizontal plate are provided. The first vertical plate has a third through hole. The second vertical plate has a sixth, fourth, and seventh through hole. The third vertical plate has an eighth and a ninth through hole. The centers of the third, sixth, and eighth through holes are on the same straight line. The sixth through hole has the same diameter as the third through hole. A flange linear bearing is installed inside the sixth and third through holes. The outer diameter of the flange linear bearing matches the sixth and third through holes and is fixed to the fourth through hole in the second vertical plate by fasteners. The flange shaft is mounted with a clearance fit within the flange linear bearing. One end of the flange shaft has a limiting flange. The limiting flange, the flange plate in the flange shaft, and the fourth through hole in the second vertical plate are fixed together by fasteners. The limiting flange has a square groove, and the shaft body in the flange shaft has a first through hole. A limiting bolt is installed in the first through hole. The limiting bolt is located within the square groove of the limiting flange and has a certain gap with the groove. The limiting bolt is also spaced from the second vertical plate. The limiting flange can restrict the rotation of the flange shaft. The shaft body in the flange shaft has threads. Third bolts are installed in the seventh and ninth through holes in the second and third vertical plates. Multiple nuts are installed on these third bolts to adjust the distance between the second and third vertical plates and ensure balanced force distribution. In the tensile force measurement assembly, a motor is mounted on the flange plate in the flange shaft. The motor drives the blades to rotate and generate tensile force. A tensile force sensor is threaded onto the shaft body in the flange shaft. The other end of the tensile force sensor is fixed by the fifth bolt behind the third vertical plate. The tensile force sensor signal is output to a display screen to show the tensile force value. The cable outlet of the tension sensor is placed in a square through-hole in the horizontal plate, with a certain gap between the cable outlet and the square through-hole to avoid interference. In the photoelectric sensor assembly, a fixing component is installed at one end of the square tube, and a photoelectric sensor is installed on the fixing component for measuring the motor speed.

[0008] This invention offers several significant advantages. Structurally, the triangular support composed of profiles and square tubing provides high rigidity and stability while maintaining a simple structure, effectively reducing manufacturing costs. Simultaneously, the precision guiding design of the flange linear bearing ensures smooth axial movement of the flange shaft. In terms of measurement performance, the high-precision tensile sensor enables real-time data acquisition with minimal measurement error. Furthermore, the replaceable sensor design allows for flexible adjustment of the measurement range and sensitivity according to testing requirements. Functionally, this invention integrates simultaneous tensile and rotational speed testing. Its modular design allows for quick replacement of motors and blade assemblies of different specifications, greatly improving testing efficiency. From an economic perspective, the simple overall structure and low maintenance costs, coupled with its universal design, further reduce operating costs. Attached Figure Description

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0010] Figure 1 This is a schematic diagram of the present invention;

[0011] Figure 2 This is a front view of the present utility model;

[0012] Figure 3 This is a side view of the present invention;

[0013] Figure 4 This is a top view of the present invention;

[0014] Figure 5 This is a schematic diagram of the mounting base;

[0015] Figure 6 Schematic diagram of flange shaft;

[0016] Figure 7 This is a schematic diagram of a limit flange.

[0017] In the diagram: 1. First profile, 2. Third profile, 3. Second profile, 4. Fourth profile, 5. Photoelectric sensor, 6. Square tube, 7. Motor, 8. Fixing base, 9. Tension sensor, 10. Third bolt, 11. Second bolt, 12. Flange linear bearing, 13. First bolt, 14. Fourth bolt, 15. Fifth bolt, 16. Sixth bolt, 17. Flange shaft, 18. Limiting flange, 19. Fixing component, 20. Fifth profile, 801. Horizontal plate, 802. First vertical plate, 803. Second vertical plate, 804. Third vertical plate, 805. Third through hole, 806. Fourth through hole, 807. Fifth through hole, 808. Seventh through hole, 809. Square through hole, 810. Eighth through hole, 811. Ninth through hole, 812. Sixth through hole, 1701. Second through hole, 1702. First through hole. Detailed Implementation

[0018] This utility model provides a power system test bench, including: a base assembly, a tensile measuring assembly, and a photoelectric sensor assembly. The base assembly includes multiple profiles and a square tube 6, wherein a first profile 1, a second profile 3, a third profile 2, a fourth profile 4, and a fifth profile 20 are assembled into a triangular bracket. The third profile 2 in the triangular bracket is fixed to the square tube 6 by a fourth bolt 14. A fixing seat 8 is installed above the square tube 6 and the fifth profile 20 by a first bolt 13 passing through a fifth through hole 807. The tensile measuring assembly includes the fixing seat 8, which includes a horizontal plate 801. The horizontal plate 801 has a square through hole 809. A first vertical plate 802, a second vertical plate 803, and a third vertical plate 804 are arranged on the horizontal plate 801. A third through hole 805 is provided on a vertical plate 802, a sixth through hole 812 is provided on a second vertical plate 803, and an eighth through hole 810 is provided on a third vertical plate 804. The centers of the third through hole 805, the sixth through hole 812, and the eighth through hole 810 are on the same straight line. The sixth through hole 812 has the same diameter as the third through hole 805. A flange linear bearing 12 is installed in the sixth through hole 812 and the third through hole 805. The outer diameter of the flange linear bearing 12 is the same as the diameter of the sixth through hole 812 and the third through hole 805. A limiting flange 18 is installed in the flange of the flange linear bearing 12. The flange linear bearing 12, the limiting flange 18, and the fourth through hole 806 are fixed by a second bolt 11. Flange 18 has a square groove. A flange shaft 17 is installed in the flange linear bearing 12 with a clearance fit. A motor 7 is installed in the second through hole 1701 within the flange of the flange shaft 17. A blade is installed on the motor 7. The flange shaft 17 has threads on its shaft body, and a tension sensor 9 is installed in the threads of the flange shaft 17. A first through hole 1702 is provided at the square groove of the limiting flange 18 on the flange shaft 17. A sixth bolt 16 is installed in the first through hole 1702. The sixth bolt 16 has gaps on both sides and the bottom of the square groove of the limiting flange 18. When the torque of the motor 7 exceeds the bearing capacity of the tension sensor 9, causing deformation, the rotation of the flange shaft 17 is restricted. The tension sensor 9 has its lead-out point located in the square through hole 809 of the horizontal plate 801. The fifth bolt 15 passes through the eighth through hole 810 in the third vertical plate 804 to fix the tension sensor 9. When the motor 7 and the blade rotate to generate tension, the motor 7 pulls the flange shaft 17, which slides within the flange linear bearing 12. The flange shaft 17 pulls the tension sensor 9, which transmits the tension to the tension display screen via a signal line. The tension display screen shows the tension value. The second vertical plate 803 in the fixing base 8 has a seventh through hole 808, and the third vertical plate 804 in the fixing base 8 has a ninth through hole 811. The centers of the seventh through hole 808 and the ninth through hole 811 are on the same straight line, and the third bolt 10 is installed thereon.Multiple nuts are installed on the third bolt 10 to fix the distance between the third vertical plate 804 and the second vertical plate 803. Simultaneously, when the fifth bolt 15 generates tension, the second vertical plate 803 and the third vertical plate 804 can share the force. The photoelectric sensor assembly includes a square tube 6, with a fixing member 19 installed at one end. A photoelectric sensor 5 is installed on the fixing member 19. The fixing member 19 has a boss with mounting holes. Bolts and nuts are used to fix the square tube 6 to the boss in the fixing member 19. The photoelectric sensor 5 can measure the speed of the motor 7 when the blade rotates and transmit the motor 7 speed to the display screen via a signal line.

Claims

1. A power system test bench, characterized in that, include: The system comprises a base assembly, a tensile force measurement assembly, and a photoelectric sensor assembly. The base assembly is a triangular bracket constructed from profiles and square tubes. The fixed seat of the tensile force measurement assembly and the fixed component of the photoelectric sensor assembly are mounted on the triangular bracket. A flange linear bearing is provided inside the fixed seat. A flange shaft is installed inside the flange linear bearing. A motor is installed in the flange plate of the flange shaft. A tensile force sensor is threaded onto the shaft body of the flange shaft. The photoelectric sensor is installed on the fixed component.

2. The power system test bench according to claim 1, characterized in that, The fixing base is provided with a horizontal plate, a first vertical plate, a second vertical plate, and a third vertical plate. The horizontal plate is provided with a square through hole. The first vertical plate, the second vertical plate, and the third vertical plate are respectively provided with a third through hole, a sixth through hole, and an eighth through hole. The centers of the three holes are on the same straight line.

3. The power system test bench according to claim 1, characterized in that, A limiting flange is installed on the flange linear bearing, and the limiting flange has a groove.

4. The power system test bench according to claim 1, characterized in that, The flange shaft has a first through hole in its threaded body, and the flange plate in the flange shaft has a second through hole.

5. A power system test bench according to claim 2, characterized in that, The tension sensor is fixed in the eighth through hole of the third vertical plate by the fifth bolt.

6. A power system test bench according to claim 2, characterized in that, The second vertical plate and the third vertical plate are respectively provided with a seventh through hole and a ninth through hole, and a third bolt and nut are installed in the seventh through hole and the ninth through hole.

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