Rotor wing power system test bed radius adjusting device

Abstract

The utility model discloses a radius adjusting device for a rotor wing power system test bed, and solves the technical problem of low test efficiency caused by inaccurate adjustment of a stand column of an existing test bed. The device comprises a plurality of upright posts, a positioning assembly; the lower end of each stand column is connected with the corresponding positioning assembly, the positioning assemblies are detachably connected to the upper end of the platform, a plurality of first positioning holes are formed in the platform, and the positioning assemblies and the first positioning holes are matched for limiting. The device has the advantages of being accurate in adjustment, stable in structure and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of rotor performance test technology, concretely relates to a rotor power system test bench radius adjusting device. BACKGROUND

[0002] The test bench is the infrastructure for supporting and operating experiments in the laboratory, which combines the experiment desktop, instrument equipment and various auxiliary tools to meet the experimental needs in different fields, such as chemistry, physics, biology, medicine, material science, etc. In industrial production, the test bench is used for testing and verifying the quality of products to ensure that the quality and performance of the products meet the standards. In the testing process of the rotor power system, the test bench is also a necessary device. It can simulate various parameters under actual flight conditions, such as speed and lift, to evaluate the aerodynamic characteristics, dynamics characteristics and flight mechanics performance of the rotor system. By comparing with the theoretical design, the performance of the rotor system in the actual working process can be found out, and the rotor system can be optimized to improve the performance of the rotor system.

[0003] Although the radius adjusting structure has been introduced into the rotor performance test bench in the prior art, such as the patent with the publication number CN105083588 A and the name of a multi-rotor unmanned aerial vehicle performance test platform and method, the upper side of the base is provided with a lower sliding device, the lower side of the top frame is provided with an upper sliding device, and the stand column is connected to the sliding device. By setting the lower sliding device and the upper sliding device, the position of the stand column can be adjusted according to the shape of the multi-rotor unmanned aerial vehicle and the length of the arm, so that the sliding block at the end of the stand column slides in the sliding rail, thereby adjusting the radius formed by the stand column, so that the test platform can be suitable for testing different sizes of multi-rotor unmanned aerial vehicles.

[0004] However, in the above-mentioned device, all the stand columns are adjusted to adapt to different sizes of rotor systems by adjusting the position of each stand column on the sliding rail separately. Manual adjustment is prone to cause inconsistent adjustment sliding length of each stand column, which requires subsequent accurate adjustment and reduces the testing efficiency.

[0005] Based on the problems existing in the above-mentioned prior art, it is necessary to study a rotor system performance test bench radius adjusting device with accurate radius adjustment. UTILITY MODEL CONTENTS

[0006] The technical problem to be solved by the utility model is that the existing test bench stand column adjustment is not accurate, which leads to low testing efficiency.

[0007] The utility model is realized by the following technical scheme:

[0008] A rotor power system test bench radius adjusting device, comprising:

[0009] a plurality of columns;

[0010] a positioning assembly;

[0011] Each lower end of the column is connected with the positioning assembly, the positioning assembly is detachably connected to the upper end of the platform of the test bench, a plurality of first positioning holes are arranged on the platform, and the positioning assembly is matched with the first positioning holes to limit the position.

[0012] The utility model discloses a positioning assembly is arranged at the lower end of the column, and the positioning assembly can be detachably connected with the platform, so that the positioning assembly can be connected to different positions on the platform, thereby realizing the position adjustment of the column to adapt to the power rotor system of different sizes, it needs to be explained that the positioning assembly makes each column adjust the same distance, realizes the accurate adjustment of the column, and the column is arranged as at least two, when two columns are adopted, the two columns are symmetrically arranged, and the power rotor system is stably clamped.

[0013] Further, a plurality of groups of limiting holes are arranged on the platform, one column is arranged corresponding to each group of limiting holes, and each group of limiting holes comprises a plurality of first positioning holes.

[0014] After the technical scheme is adopted, it needs to be explained that according to the size of the power rotor system, a plurality of columns can be detachably connected to the corresponding first positioning holes of each group of limiting holes in sequence, the position of the column is accurately limited through threaded connection, a stable installation environment is provided for subsequent performance test of the power rotor system, and in addition, the platform is circularly arranged, and each group of limiting holes is arranged along the radial direction of the platform.

[0015] The utility model discloses a kind of rotor power system test bench radius adjusting devices, and the column is arranged as three.

[0016] After the technical scheme is adopted, it needs to be explained that by setting three columns, the power rotor system is clamped from three directions, so that it is more stable in the testing process.

[0017] The utility model discloses a kind of rotor power system test bench radius adjusting devices, and the limiting hole is arranged as three groups, two adjacent groups of the limiting hole are arranged at 120 degrees interval, and the interval between two adjacent first positioning holes is consistent.

[0018] After the technical scheme is adopted, it needs to be explained that by setting three groups of first positioning holes, three columns are accurately matched with three groups of limiting holes, and are matched with three groups of limiting holes at equal interval, to further enhance the clamping stability of rotor system.

[0019] Further, the positioning assembly comprises a support, and the support is sleeved on the lower end of the column.

[0020] Need to explain after using this technical scheme, after installing the power rotor system, all gravity of the power rotor system will be transmitted to the platform through the stand column, therefore the strength requirement of the connecting part of the stand column and the platform is high, the support fixed sleeve is arranged at the lower end of the stand column, the structural strength of the lower end of the stand column is strengthened through the support, and the stability of the power rotor system during performance test is maintained.

[0021] Further, the support is provided with a second positioning hole matched with the first positioning hole, and the support is detachably connected to the platform through bolts.

[0022] After using this technical scheme, it needs to be explained that the first positioning hole and the second positioning hole are threaded holes, the first positioning hole on the support is matched with the first positioning hole on the platform, and the support is fixed through bolts, so that the support and the stand column are fixed.

[0023] The utility model discloses a kind of rotor power system test rig radius adjusting devices, the both sides of the support are equipped with connecting plate, connecting plate on both sides is respectively equipped with the support second positioning hole, the interval between two support second positioning holes is consistent with the interval of adjacent two first positioning holes in same group.

[0024] After using this technical scheme, it needs to be explained that by setting connecting plate on the both sides of support, first, the contact area of support and platform is increased by connecting plate, then the both ends of support are fixed by two threaded holes, so as to increase the stability of the connection of stand column and platform.

[0025] Further, a constraint assembly is movably connected between the adjacent two stand columns.

[0026] After using this technical scheme, it needs to be explained that, since the device needs to adapt to power rotor system of different sizes, the height of stand column needs to be set, and the lower end of stand column is connected by support to keep stable, and at the upper end of stand column, due to the gravity of power rotor system, the vibration generated by power rotor system will make the upper end of stand column swing during the test of power rotor system, or when adjusting stand column, the vibration of stand column will make the upper end of stand column swing, so that stand column is unstable, therefore constraint assembly is set to constrain, to keep the upper end of stand column stable.

[0027] Further, the constraint assembly includes a constraint rod and a connecting piece, the stand column is provided with a connecting piece, the connecting piece is connected with one of the constraint rods at both ends, the both ends of the constraint rod are respectively provided with a connecting hole and an oblong hole, one end of the connecting piece is rotatably connected with the connecting hole of one of the constraint rods, and the other end of the connecting piece is boltedly connected with the oblong hole of the other constraint rod.

[0028] In the utility model, it needs to be explained that one side of the connecting piece is connected with the constraint rod and supports the constraint rod, and on the other side, the constraint rod will be adjusted accordingly following the adjustment of the stand, therefore, the two constraint rods connected on the same connecting piece are separated by the connecting piece by a certain distance to prevent interference with each other during the adjustment of the constraint rod, and in addition, it needs to be explained that the length of the constraint rod is fixed, so the constraint rod needs to be adjusted synchronously when the stand is adjusted, therefore, the constraint rod is movably connected with the stand to meet the adjustment requirement.

[0029] In addition, it needs to be explained that when any one support is moved to the center of the platform, the connecting piece at the upper end of the corresponding stand will drive one constraint rod movably connected with the connecting piece to move towards another connecting piece screwedly connected with the constraint rod, and each constraint rod will move in the above-mentioned moving direction after moving on the corresponding connecting piece to adapt to the movement of the stand and keep the stability of the upper end of the stand, and it needs to be explained that the long round hole is connected with the connecting piece through bolts, and the bolts need to be loosened before adjustment to enable the bolts to move in the long round hole.

[0030] Further, the stand is sleeved with a clamping jaw.

[0031] After the technical scheme is adopted, it needs to be explained that the clamping jaw is movably connected with the stand, and the movable connection mode includes but is not limited to a sliding rail structure, a sliding groove and sliding block structure, a ball structure and a sleeved sliding structure, when the lift of the power rotor system is tested, the clamping jaw will clamp the power rotor system, the lift generated by the rotation of the rotor will drive the clamping jaw to rise along the stand, touch the pressure sensor arranged at the upper end of the stand, and the lift measurement is realized.

[0032] The utility model discloses a kind of rotor power system test bench radius adjusting devices, and the platform is equipped with hollow part.

[0033] After the technical scheme is adopted, it needs to be explained that hollow part reduces the weight of the platform on the one hand, and on the other hand, when the performance of the rotor system is tested, the wind area of the downwash airflow generated by the platform and the rotor is reduced, and the additional pressure brought by the downwash airflow is reduced.

[0034] The utility model discloses a kind of rotor power system test bench radius adjusting devices, and the platform is equipped with connecting portion on one side, for connecting test base.

[0035] The stand adjustment principle of the utility model is as follows:

[0036] Loosen the bolt on the support, namely the position adjustment of the support can be carried out, the second positioning hole on the support is moved to the corresponding position of the platform first positioning hole, and the bolt is tightened again to realize the fixation of the base. Before adjusting the column, loosen the bolt connecting the constraint rod and the connecting piece. Due to the movement of the column, the connecting piece at the upper end of the column will drive a constraint rod rotationally connected with the connecting piece to move towards another connecting piece threadedly connected with the constraint rod. Each constraint rod will move in the above-mentioned moving direction after moving the corresponding connecting piece to adapt to the movement of the column and keep the stability of the upper end of the column. The positions of the three supports are adjusted in sequence according to the above method to adapt to the dynamic rotor system of different sizes.

[0037] The utility model has the following advantages and beneficial effects:

[0038] 1. The utility model discloses a positioning assembly is connected at different positions on the platform, which realizes the position adjustment of the column to adapt to the dynamic rotor system of different sizes. The positioning assembly makes the adjustment distance of each column the same, and realizes the accurate adjustment of the column.

[0039] 2. The utility model discloses a screw rod base. Part of the weight of the upper assembly on the sliding block directly acts on the sliding block through the connecting rod, and the sliding block transmits part of the upper weight to the screw rod base, so that the pressure is dispersed, the bearing capacity is improved, and the screw rod is not easy to deform and affect the movement of the sliding block.

[0040] 3. The utility model discloses a connecting rod is arranged into Y shape. This structure makes the connecting rod and the inclined platform constitute double-point support, disperses the weight of the upper assembly to two supporting points, reduces the pressure borne by a single supporting point, and makes the pressure dispersion more uniform. In addition, the double-point support also enhances the stability of the inclined platform, and ensures the accuracy in the performance test process of the rotor system.

[0041] 4. The utility model discloses an inclined platform is hollowed out. Hollowing out reduces the weight of the inclined platform on the one hand, and reduces the wind impact area of the downwash airflow generated by the inclined platform and the rotor when the performance of the rotor system is tested, and reduces the additional pressure brought by the downwash airflow. DRAWINGS

[0042] The drawings described herein are used to provide further understanding of the embodiments of the utility model and form part of the application, and do not constitute limitation on the embodiments of the utility model. In the drawings:

[0043] Figure 1 It is the overall structure schematic diagram of the utility model;

[0044] Figure 2 It is the utility model Figure 1 The enlarged schematic diagram of I place in the utility model;

[0045] Figure 3 It is the overall top view schematic diagram of the utility model;

[0046] Figure 4 It is the embodiment schematic diagram of the utility model.

[0047] The component names in the drawings are as follows:

[0048] 1-platform, 101-first positioning hole, 102-connection part;2-support, 201-second positioning hole;3-stand;4-connector;5-constraint rod;6-clamping jaw. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical scheme and advantage of the utility model more clear and obvious, the utility model is further explained in detail below by combining with examples and drawings, and the illustrative embodiment of the utility model and its explanation are only used to explain the utility model, and not as the limitation of the utility model.

[0050] Example 1

[0051] As Figures 1-3 Shown, a rotor power system test bench radius adjusting device, comprising:

[0052] Multiple stands 3;

[0053] Positioning assembly;

[0054] Each lower end of the stand 3 is connected with the positioning assembly, the positioning assembly is detachably connected to the upper end of the platform 1 of the test bench, a plurality of first positioning holes 101 are arranged on the platform 1, and the positioning assembly is matched with the first positioning hole 101 to limit.

[0055] A plurality of limiting holes are arranged on the platform 1, one stand 3 is arranged corresponding to each limiting hole, and each limiting hole comprises a plurality of first positioning holes 101.

[0056] The positioning assembly comprises a support 2, and the support 2 is sleeved on the lower end of the stand 3.

[0057] The support 2 is provided with a second positioning hole 201 matched with the first positioning hole 101, and the support 2 is detachably connected to the platform 1 through a bolt.

[0058] Example 2

[0059] The difference between the embodiment and example 1 is that the stand 3 is provided as three, by arranging three stands 3, the power rotor system is clamped from three directions, so that it is more stable in the testing process.

[0060] The limiting holes are arranged in three groups, and two adjacent groups of the limiting holes are arranged at intervals of 120 degrees, and the interval between two adjacent first positioning holes 101 is consistent, and by arranging three groups of first positioning holes 101, three columns 3 are accurately matched and positioned with three groups of limiting holes, and three groups of positioning holes are arranged at equal intervals, further enhancing the clamping stability of the rotor system.

[0061] The remaining structure of the embodiment is consistent with that of embodiment 1, and will not be repeated here.

[0062] Embodiment 3

[0063] The difference between the present embodiment and embodiment 2 is that the support 2 is provided with a connecting plate on both sides, and the second positioning hole 201 is arranged on the connecting plate on both sides, and the interval between the two second positioning holes 201 is consistent with the interval between two adjacent first positioning holes 101 in the same group. By arranging the connecting plate on both sides of the support 2, the contact area between the support 2 and the platform 1 is first increased by the connecting plate, and then the two ends of the support 2 are fixed by the two second positioning holes 201, thereby increasing the stability of the connection between the column 3 and the platform 1.

[0064] The remaining structure of the embodiment is consistent with that of embodiment 1, and will not be repeated here.

[0065] Embodiment 4

[0066] The difference between the present embodiment and embodiment 1 is that a constraint assembly is movably connected between two adjacent columns 3 to keep the upper end of the column stable.

[0067] Embodiment 5

[0068] The difference between the present embodiment and embodiment 4 is that the constraint assembly comprises a constraint rod 5 and a connecting piece 4, the column 3 is provided with the connecting piece 4, and the two ends of the connecting piece 4 are respectively connected with one of the constraint rods 5, the two ends of the constraint rod 5 are respectively provided with a connecting hole and an oblong hole, one end of the connecting piece 4 is rotationally connected with the connecting hole of one of the constraint rods 5, and the other end of the connecting piece 4 is boltedly connected with the oblong hole of the other constraint rod 5.

[0069] In this embodiment, the connecting piece 4 is connected with the constraint rod 5 and supports the constraint rod 5, and the two constraint rods 5 connected with the same connecting piece 4 are separated by the connecting piece 4 to prevent interference during the adjustment of the constraint rod 5, when any one support 2 is moved to the center of the platform 1, the connecting piece 4 at the upper end of the corresponding stand 3 will drive one constraint rod 5 connected with the connecting piece 4 to move towards another connecting piece 4 connected with the constraint rod 5, and each constraint rod 5 will move in the above-mentioned moving direction after moving the corresponding connecting piece 4 to adapt to the movement of the stand 3 and keep the stability of the upper end of the stand 3, the long circular hole is connected with the connecting piece 4 through bolts, and the bolts need to be loosened before adjustment to enable the bolts to move in the long circular hole.

[0070] Embodiment 6

[0071] The difference between this embodiment and embodiment 1 is that the stand 3 is sleeved with a clamping jaw 6.

[0072] In this embodiment, the clamping jaw 6 is connected with the stand 3 in a sliding manner, and the sliding connection manner includes but is not limited to a sliding rail structure, a sliding groove and sliding block structure, a ball structure and a sleeve sliding structure, when the lift of the powered rotor system is tested, the clamping jaw 6 will clamp the powered rotor system, the rotor rotates to generate lift to drive the clamping jaw 6 to rise along the stand 3, and touch the pressure sensor arranged at the upper end of the stand 3 to realize the measurement of the lift.

[0073] Embodiment 7

[0074] The difference between this embodiment and embodiment 1 is that the platform 1 is provided with a hollow part, which can reduce the weight of the platform 1, and can reduce the wind area of the downwash airflow generated by the platform 1 and the rotor when the performance of the rotor system is tested, and can reduce the additional pressure brought by the downwash airflow.

[0075] Embodiment 8

[0076] The difference between this embodiment and embodiment 1 is that one side of the platform 1 is provided with a connecting part 102 for connecting a test base.

[0077] The adjusting principle of the stand 3 of the utility model is as follows:

[0078] Loosen the bolt on the support 2, namely the position adjustment of the support 2, the second positioning hole 201 on the support 2 is moved to the corresponding position with the platform first positioning hole 101, the bolt is tightened again, the fixing of the stand column 3 can be realized, before the adjustment of the stand column 3, the bolt that the restraint rod 5 is connected with the connecting piece 4 is loosened, due to the movement of the stand column 3, the connecting piece 4 on the upper end of the stand column 3 will drive one restraint rod 5 that is rotationally connected with the connecting piece 4 to move to the other connecting piece 4 that is threadedly connected with the restraint rod 5, each restraint rod 5 will move in the above-mentioned moving direction after the corresponding connecting piece 4 moves, to adapt to the movement of the stand column 3 and keep the stability of the upper end of the stand column 3, the positions of the three supports 2 are adjusted in sequence according to the above-mentioned method to adapt to the different size of the power rotor system.

[0079] The above specific embodiments are used to further explain the purpose, technical scheme and beneficial effects of the present application, and it should be understood that the above is only a specific embodiment of the present application and is not used to limit the protection scope of the present application, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A rotor power system test bed radius adjustment device, characterized by, The utility model relates to a test bench positioning device, including: A plurality of columns (3); Positioning assembly; Each lower end of the column (3) is connected with the positioning assembly, the positioning assembly is detachably connected with the upper end of the platform (1) of the test bench, a plurality of first positioning holes (101) are arranged on the platform (1), and the positioning assembly is limited in position in cooperation with the first positioning hole (101).

2. The radius adjustment device for a rotor power system test bed of claim 1, wherein, A plurality of groups of limiting holes are arranged on the platform (1), one column (3) is correspondingly arranged in each group of limiting holes, and each group of limiting holes comprises a plurality of first positioning holes (101).

3. The radius adjustment device of a rotary wing power system test bench according to claim 1 or 2, characterized in that, The column (3) is provided as three.

4. The radius adjustment device for a rotor power system test bed of claim 2, wherein, The limiting hole is provided as three groups, and the limiting holes of two adjacent groups are provided at intervals of 120 degrees, and the spacing between two adjacent first positioning holes (101) is consistent.

5. The radius adjustment device of a rotary wing power system test bench according to claim 1 or 2, characterized in that, The positioning assembly comprises a support (2), and the support (2) is sleeved on the lower end of the column (3).

6. A radius adjustment device for a rotor power system test bed according to claim 5, wherein, Second positioning holes (201) that are matched with the first positioning holes (101) are arranged on the support (2), and the support (2) is detachably connected with the platform (1) through bolts.

7. The radius adjustment device of claim 6, wherein the radius adjustment device is configured to adjust the radius of the rotor power system test stand to a radius of 0.5 meters to 2.5 meters. Two connecting plates are arranged on the two sides of the support (2), and the second positioning holes (201) are arranged on the two connecting plates respectively, the spacing between the two second positioning holes (201) is consistent with the spacing between two adjacent first positioning holes (101) in the same group.

8. The radius adjustment device of a rotary wing power system test bench according to claim 1 or 2, characterized in that, A constraint assembly is movably connected between two adjacent columns (3).

9. The radius adjustment device for a rotor power system test bed of claim 8, wherein, The constraint assembly comprises a constraint rod (5) and a connecting piece (4), the connecting piece (4) is arranged on the column (3), one end of the connecting piece (4) is rotatably connected with the connecting hole of one constraint rod (5), and the other end of the connecting piece (4) is boltedly connected with the long circular hole of another constraint rod (5).

10. The radius adjustment device for a rotor power system test bed of claim 1, wherein, The column (3) is sleeved with a clamping jaw (6).

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